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19#define _ATFILE_SOURCE
20#include "qemu/osdep.h"
21#include "qemu/cutils.h"
22#include "qemu/path.h"
23#include <elf.h>
24#include <endian.h>
25#include <grp.h>
26#include <sys/ipc.h>
27#include <sys/msg.h>
28#include <sys/wait.h>
29#include <sys/mount.h>
30#include <sys/file.h>
31#include <sys/fsuid.h>
32#include <sys/personality.h>
33#include <sys/prctl.h>
34#include <sys/resource.h>
35#include <sys/swap.h>
36#include <linux/capability.h>
37#include <sched.h>
38#include <sys/timex.h>
39#include <sys/socket.h>
40#include <sys/un.h>
41#include <sys/uio.h>
42#include <poll.h>
43#include <sys/times.h>
44#include <sys/shm.h>
45#include <sys/sem.h>
46#include <sys/statfs.h>
47#include <utime.h>
48#include <sys/sysinfo.h>
49#include <sys/signalfd.h>
50
51#include <netinet/ip.h>
52#include <netinet/tcp.h>
53#include <linux/wireless.h>
54#include <linux/icmp.h>
55#include <linux/icmpv6.h>
56#include <linux/errqueue.h>
57#include <linux/random.h>
58#include "qemu-common.h"
59#ifdef CONFIG_TIMERFD
60#include <sys/timerfd.h>
61#endif
62#ifdef TARGET_GPROF
63#include <sys/gmon.h>
64#endif
65#ifdef CONFIG_EVENTFD
66#include <sys/eventfd.h>
67#endif
68#ifdef CONFIG_EPOLL
69#include <sys/epoll.h>
70#endif
71#ifdef CONFIG_ATTR
72#include "qemu/xattr.h"
73#endif
74#ifdef CONFIG_SENDFILE
75#include <sys/sendfile.h>
76#endif
77
78#define termios host_termios
79#define winsize host_winsize
80#define termio host_termio
81#define sgttyb host_sgttyb
82#define tchars host_tchars
83#define ltchars host_ltchars
84
85#include <linux/termios.h>
86#include <linux/unistd.h>
87#include <linux/cdrom.h>
88#include <linux/hdreg.h>
89#include <linux/soundcard.h>
90#include <linux/kd.h>
91#include <linux/mtio.h>
92#include <linux/fs.h>
93#if defined(CONFIG_FIEMAP)
94#include <linux/fiemap.h>
95#endif
96#include <linux/fb.h>
97#if defined(CONFIG_USBFS)
98#include <linux/usbdevice_fs.h>
99#include <linux/usb/ch9.h>
100#endif
101#include <linux/vt.h>
102#include <linux/dm-ioctl.h>
103#include <linux/reboot.h>
104#include <linux/route.h>
105#include <linux/filter.h>
106#include <linux/blkpg.h>
107#include <netpacket/packet.h>
108#include <linux/netlink.h>
109#include "linux_loop.h"
110#include "uname.h"
111
112#include "qemu.h"
113#include "fd-trans.h"
114
115#ifndef CLONE_IO
116#define CLONE_IO 0x80000000
117#endif
118
119
120
121
122
123
124
125
126
127
128
129
130#define CLONE_THREAD_FLAGS \
131 (CLONE_VM | CLONE_FS | CLONE_FILES | \
132 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
133
134
135
136
137
138#define CLONE_IGNORED_FLAGS \
139 (CLONE_DETACHED | CLONE_IO)
140
141
142#define CLONE_OPTIONAL_FORK_FLAGS \
143 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
144 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
145
146
147#define CLONE_OPTIONAL_THREAD_FLAGS \
148 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
149 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
150
151#define CLONE_INVALID_FORK_FLAGS \
152 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
153
154#define CLONE_INVALID_THREAD_FLAGS \
155 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
156 CLONE_IGNORED_FLAGS))
157
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169
170
171
172#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
173#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
174
175#undef _syscall0
176#undef _syscall1
177#undef _syscall2
178#undef _syscall3
179#undef _syscall4
180#undef _syscall5
181#undef _syscall6
182
183#define _syscall0(type,name) \
184static type name (void) \
185{ \
186 return syscall(__NR_##name); \
187}
188
189#define _syscall1(type,name,type1,arg1) \
190static type name (type1 arg1) \
191{ \
192 return syscall(__NR_##name, arg1); \
193}
194
195#define _syscall2(type,name,type1,arg1,type2,arg2) \
196static type name (type1 arg1,type2 arg2) \
197{ \
198 return syscall(__NR_##name, arg1, arg2); \
199}
200
201#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
202static type name (type1 arg1,type2 arg2,type3 arg3) \
203{ \
204 return syscall(__NR_##name, arg1, arg2, arg3); \
205}
206
207#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
208static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
209{ \
210 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
211}
212
213#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
214 type5,arg5) \
215static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
216{ \
217 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
218}
219
220
221#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
222 type5,arg5,type6,arg6) \
223static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
224 type6 arg6) \
225{ \
226 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
227}
228
229
230#define __NR_sys_uname __NR_uname
231#define __NR_sys_getcwd1 __NR_getcwd
232#define __NR_sys_getdents __NR_getdents
233#define __NR_sys_getdents64 __NR_getdents64
234#define __NR_sys_getpriority __NR_getpriority
235#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
236#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
237#define __NR_sys_syslog __NR_syslog
238#define __NR_sys_futex __NR_futex
239#define __NR_sys_inotify_init __NR_inotify_init
240#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
241#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
242
243#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
244#define __NR__llseek __NR_lseek
245#endif
246
247
248#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
249#define TARGET_NR__llseek TARGET_NR_llseek
250#endif
251
252#ifdef __NR_gettid
253_syscall0(int, gettid)
254#else
255
256
257static int gettid(void) {
258 return -ENOSYS;
259}
260#endif
261
262
263
264
265
266
267
268#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
269#define EMULATE_GETDENTS_WITH_GETDENTS
270#endif
271
272#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
273_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
274#endif
275#if (defined(TARGET_NR_getdents) && \
276 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
277 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
278_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
279#endif
280#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
281_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
282 loff_t *, res, uint, wh);
283#endif
284_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
285_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
286 siginfo_t *, uinfo)
287_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
288#ifdef __NR_exit_group
289_syscall1(int,exit_group,int,error_code)
290#endif
291#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
292_syscall1(int,set_tid_address,int *,tidptr)
293#endif
294#if defined(TARGET_NR_futex) && defined(__NR_futex)
295_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
296 const struct timespec *,timeout,int *,uaddr2,int,val3)
297#endif
298#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
299_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
300 unsigned long *, user_mask_ptr);
301#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
302_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
303 unsigned long *, user_mask_ptr);
304#define __NR_sys_getcpu __NR_getcpu
305_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
306_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
307 void *, arg);
308_syscall2(int, capget, struct __user_cap_header_struct *, header,
309 struct __user_cap_data_struct *, data);
310_syscall2(int, capset, struct __user_cap_header_struct *, header,
311 struct __user_cap_data_struct *, data);
312#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
313_syscall2(int, ioprio_get, int, which, int, who)
314#endif
315#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
316_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
317#endif
318#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
319_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
320#endif
321
322#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
323_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
324 unsigned long, idx1, unsigned long, idx2)
325#endif
326
327static bitmask_transtbl fcntl_flags_tbl[] = {
328 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
329 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
330 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
331 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
332 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
333 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
334 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
335 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
336 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
337 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
338 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
339 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
340 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
341#if defined(O_DIRECT)
342 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
343#endif
344#if defined(O_NOATIME)
345 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
346#endif
347#if defined(O_CLOEXEC)
348 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
349#endif
350#if defined(O_PATH)
351 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
352#endif
353#if defined(O_TMPFILE)
354 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
355#endif
356
357#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
358 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
359#endif
360 { 0, 0, 0, 0 }
361};
362
363static int sys_getcwd1(char *buf, size_t size)
364{
365 if (getcwd(buf, size) == NULL) {
366
367 return (-1);
368 }
369 return strlen(buf)+1;
370}
371
372#ifdef TARGET_NR_utimensat
373#if defined(__NR_utimensat)
374#define __NR_sys_utimensat __NR_utimensat
375_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
376 const struct timespec *,tsp,int,flags)
377#else
378static int sys_utimensat(int dirfd, const char *pathname,
379 const struct timespec times[2], int flags)
380{
381 errno = ENOSYS;
382 return -1;
383}
384#endif
385#endif
386
387#ifdef TARGET_NR_renameat2
388#if defined(__NR_renameat2)
389#define __NR_sys_renameat2 __NR_renameat2
390_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
391 const char *, new, unsigned int, flags)
392#else
393static int sys_renameat2(int oldfd, const char *old,
394 int newfd, const char *new, int flags)
395{
396 if (flags == 0) {
397 return renameat(oldfd, old, newfd, new);
398 }
399 errno = ENOSYS;
400 return -1;
401}
402#endif
403#endif
404
405#ifdef CONFIG_INOTIFY
406#include <sys/inotify.h>
407
408#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
409static int sys_inotify_init(void)
410{
411 return (inotify_init());
412}
413#endif
414#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
415static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
416{
417 return (inotify_add_watch(fd, pathname, mask));
418}
419#endif
420#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
421static int sys_inotify_rm_watch(int fd, int32_t wd)
422{
423 return (inotify_rm_watch(fd, wd));
424}
425#endif
426#ifdef CONFIG_INOTIFY1
427#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
428static int sys_inotify_init1(int flags)
429{
430 return (inotify_init1(flags));
431}
432#endif
433#endif
434#else
435
436#undef TARGET_NR_inotify_init
437#undef TARGET_NR_inotify_init1
438#undef TARGET_NR_inotify_add_watch
439#undef TARGET_NR_inotify_rm_watch
440#endif
441
442#if defined(TARGET_NR_prlimit64)
443#ifndef __NR_prlimit64
444# define __NR_prlimit64 -1
445#endif
446#define __NR_sys_prlimit64 __NR_prlimit64
447
448struct host_rlimit64 {
449 uint64_t rlim_cur;
450 uint64_t rlim_max;
451};
452_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
453 const struct host_rlimit64 *, new_limit,
454 struct host_rlimit64 *, old_limit)
455#endif
456
457
458#if defined(TARGET_NR_timer_create)
459
460static timer_t g_posix_timers[32] = { 0, } ;
461
462static inline int next_free_host_timer(void)
463{
464 int k ;
465
466 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
467 if (g_posix_timers[k] == 0) {
468 g_posix_timers[k] = (timer_t) 1;
469 return k;
470 }
471 }
472 return -1;
473}
474#endif
475
476
477#ifdef TARGET_ARM
478static inline int regpairs_aligned(void *cpu_env, int num)
479{
480 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
481}
482#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
483static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
484#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
485
486
487
488static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
489#elif defined(TARGET_SH4)
490
491static inline int regpairs_aligned(void *cpu_env, int num)
492{
493 switch (num) {
494 case TARGET_NR_pread64:
495 case TARGET_NR_pwrite64:
496 return 1;
497
498 default:
499 return 0;
500 }
501}
502#elif defined(TARGET_XTENSA)
503static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
504#else
505static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
506#endif
507
508#define ERRNO_TABLE_SIZE 1200
509
510
511
512static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
513};
514
515
516
517
518
519static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
520 [EAGAIN] = TARGET_EAGAIN,
521 [EIDRM] = TARGET_EIDRM,
522 [ECHRNG] = TARGET_ECHRNG,
523 [EL2NSYNC] = TARGET_EL2NSYNC,
524 [EL3HLT] = TARGET_EL3HLT,
525 [EL3RST] = TARGET_EL3RST,
526 [ELNRNG] = TARGET_ELNRNG,
527 [EUNATCH] = TARGET_EUNATCH,
528 [ENOCSI] = TARGET_ENOCSI,
529 [EL2HLT] = TARGET_EL2HLT,
530 [EDEADLK] = TARGET_EDEADLK,
531 [ENOLCK] = TARGET_ENOLCK,
532 [EBADE] = TARGET_EBADE,
533 [EBADR] = TARGET_EBADR,
534 [EXFULL] = TARGET_EXFULL,
535 [ENOANO] = TARGET_ENOANO,
536 [EBADRQC] = TARGET_EBADRQC,
537 [EBADSLT] = TARGET_EBADSLT,
538 [EBFONT] = TARGET_EBFONT,
539 [ENOSTR] = TARGET_ENOSTR,
540 [ENODATA] = TARGET_ENODATA,
541 [ETIME] = TARGET_ETIME,
542 [ENOSR] = TARGET_ENOSR,
543 [ENONET] = TARGET_ENONET,
544 [ENOPKG] = TARGET_ENOPKG,
545 [EREMOTE] = TARGET_EREMOTE,
546 [ENOLINK] = TARGET_ENOLINK,
547 [EADV] = TARGET_EADV,
548 [ESRMNT] = TARGET_ESRMNT,
549 [ECOMM] = TARGET_ECOMM,
550 [EPROTO] = TARGET_EPROTO,
551 [EDOTDOT] = TARGET_EDOTDOT,
552 [EMULTIHOP] = TARGET_EMULTIHOP,
553 [EBADMSG] = TARGET_EBADMSG,
554 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
555 [EOVERFLOW] = TARGET_EOVERFLOW,
556 [ENOTUNIQ] = TARGET_ENOTUNIQ,
557 [EBADFD] = TARGET_EBADFD,
558 [EREMCHG] = TARGET_EREMCHG,
559 [ELIBACC] = TARGET_ELIBACC,
560 [ELIBBAD] = TARGET_ELIBBAD,
561 [ELIBSCN] = TARGET_ELIBSCN,
562 [ELIBMAX] = TARGET_ELIBMAX,
563 [ELIBEXEC] = TARGET_ELIBEXEC,
564 [EILSEQ] = TARGET_EILSEQ,
565 [ENOSYS] = TARGET_ENOSYS,
566 [ELOOP] = TARGET_ELOOP,
567 [ERESTART] = TARGET_ERESTART,
568 [ESTRPIPE] = TARGET_ESTRPIPE,
569 [ENOTEMPTY] = TARGET_ENOTEMPTY,
570 [EUSERS] = TARGET_EUSERS,
571 [ENOTSOCK] = TARGET_ENOTSOCK,
572 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
573 [EMSGSIZE] = TARGET_EMSGSIZE,
574 [EPROTOTYPE] = TARGET_EPROTOTYPE,
575 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
576 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
577 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
578 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
579 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
580 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
581 [EADDRINUSE] = TARGET_EADDRINUSE,
582 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
583 [ENETDOWN] = TARGET_ENETDOWN,
584 [ENETUNREACH] = TARGET_ENETUNREACH,
585 [ENETRESET] = TARGET_ENETRESET,
586 [ECONNABORTED] = TARGET_ECONNABORTED,
587 [ECONNRESET] = TARGET_ECONNRESET,
588 [ENOBUFS] = TARGET_ENOBUFS,
589 [EISCONN] = TARGET_EISCONN,
590 [ENOTCONN] = TARGET_ENOTCONN,
591 [EUCLEAN] = TARGET_EUCLEAN,
592 [ENOTNAM] = TARGET_ENOTNAM,
593 [ENAVAIL] = TARGET_ENAVAIL,
594 [EISNAM] = TARGET_EISNAM,
595 [EREMOTEIO] = TARGET_EREMOTEIO,
596 [EDQUOT] = TARGET_EDQUOT,
597 [ESHUTDOWN] = TARGET_ESHUTDOWN,
598 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
599 [ETIMEDOUT] = TARGET_ETIMEDOUT,
600 [ECONNREFUSED] = TARGET_ECONNREFUSED,
601 [EHOSTDOWN] = TARGET_EHOSTDOWN,
602 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
603 [EALREADY] = TARGET_EALREADY,
604 [EINPROGRESS] = TARGET_EINPROGRESS,
605 [ESTALE] = TARGET_ESTALE,
606 [ECANCELED] = TARGET_ECANCELED,
607 [ENOMEDIUM] = TARGET_ENOMEDIUM,
608 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
609#ifdef ENOKEY
610 [ENOKEY] = TARGET_ENOKEY,
611#endif
612#ifdef EKEYEXPIRED
613 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
614#endif
615#ifdef EKEYREVOKED
616 [EKEYREVOKED] = TARGET_EKEYREVOKED,
617#endif
618#ifdef EKEYREJECTED
619 [EKEYREJECTED] = TARGET_EKEYREJECTED,
620#endif
621#ifdef EOWNERDEAD
622 [EOWNERDEAD] = TARGET_EOWNERDEAD,
623#endif
624#ifdef ENOTRECOVERABLE
625 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
626#endif
627#ifdef ENOMSG
628 [ENOMSG] = TARGET_ENOMSG,
629#endif
630#ifdef ERKFILL
631 [ERFKILL] = TARGET_ERFKILL,
632#endif
633#ifdef EHWPOISON
634 [EHWPOISON] = TARGET_EHWPOISON,
635#endif
636};
637
638static inline int host_to_target_errno(int err)
639{
640 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
641 host_to_target_errno_table[err]) {
642 return host_to_target_errno_table[err];
643 }
644 return err;
645}
646
647static inline int target_to_host_errno(int err)
648{
649 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
650 target_to_host_errno_table[err]) {
651 return target_to_host_errno_table[err];
652 }
653 return err;
654}
655
656static inline abi_long get_errno(abi_long ret)
657{
658 if (ret == -1)
659 return -host_to_target_errno(errno);
660 else
661 return ret;
662}
663
664const char *target_strerror(int err)
665{
666 if (err == TARGET_ERESTARTSYS) {
667 return "To be restarted";
668 }
669 if (err == TARGET_QEMU_ESIGRETURN) {
670 return "Successful exit from sigreturn";
671 }
672
673 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
674 return NULL;
675 }
676 return strerror(target_to_host_errno(err));
677}
678
679#define safe_syscall0(type, name) \
680static type safe_##name(void) \
681{ \
682 return safe_syscall(__NR_##name); \
683}
684
685#define safe_syscall1(type, name, type1, arg1) \
686static type safe_##name(type1 arg1) \
687{ \
688 return safe_syscall(__NR_##name, arg1); \
689}
690
691#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
692static type safe_##name(type1 arg1, type2 arg2) \
693{ \
694 return safe_syscall(__NR_##name, arg1, arg2); \
695}
696
697#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
698static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
699{ \
700 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
701}
702
703#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
704 type4, arg4) \
705static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
706{ \
707 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
708}
709
710#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
711 type4, arg4, type5, arg5) \
712static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
713 type5 arg5) \
714{ \
715 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
716}
717
718#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
719 type4, arg4, type5, arg5, type6, arg6) \
720static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
721 type5 arg5, type6 arg6) \
722{ \
723 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
724}
725
726safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
727safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
728safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
729 int, flags, mode_t, mode)
730safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
731 struct rusage *, rusage)
732safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
733 int, options, struct rusage *, rusage)
734safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
735safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
736 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
737safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
738 struct timespec *, tsp, const sigset_t *, sigmask,
739 size_t, sigsetsize)
740safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
741 int, maxevents, int, timeout, const sigset_t *, sigmask,
742 size_t, sigsetsize)
743safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
744 const struct timespec *,timeout,int *,uaddr2,int,val3)
745safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
746safe_syscall2(int, kill, pid_t, pid, int, sig)
747safe_syscall2(int, tkill, int, tid, int, sig)
748safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
749safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
750safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
751safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
752 unsigned long, pos_l, unsigned long, pos_h)
753safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
754 unsigned long, pos_l, unsigned long, pos_h)
755safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
756 socklen_t, addrlen)
757safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
758 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
759safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
760 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
761safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
762safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
763safe_syscall2(int, flock, int, fd, int, operation)
764safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
765 const struct timespec *, uts, size_t, sigsetsize)
766safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
767 int, flags)
768safe_syscall2(int, nanosleep, const struct timespec *, req,
769 struct timespec *, rem)
770#ifdef TARGET_NR_clock_nanosleep
771safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
772 const struct timespec *, req, struct timespec *, rem)
773#endif
774#ifdef __NR_msgsnd
775safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
776 int, flags)
777safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
778 long, msgtype, int, flags)
779safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
780 unsigned, nsops, const struct timespec *, timeout)
781#else
782
783
784
785
786
787
788
789#define Q_SEMTIMEDOP 4
790#define Q_MSGSND 11
791#define Q_MSGRCV 12
792#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
793
794safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
795 void *, ptr, long, fifth)
796static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
797{
798 return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
799}
800static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
801{
802 return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
803}
804static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
805 const struct timespec *timeout)
806{
807 return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
808 (long)timeout);
809}
810#endif
811#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
812safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
813 size_t, len, unsigned, prio, const struct timespec *, timeout)
814safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
815 size_t, len, unsigned *, prio, const struct timespec *, timeout)
816#endif
817
818
819
820
821#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
822
823
824
825
826
827#ifdef __NR_fcntl64
828#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
829#else
830#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
831#endif
832
833static inline int host_to_target_sock_type(int host_type)
834{
835 int target_type;
836
837 switch (host_type & 0xf ) {
838 case SOCK_DGRAM:
839 target_type = TARGET_SOCK_DGRAM;
840 break;
841 case SOCK_STREAM:
842 target_type = TARGET_SOCK_STREAM;
843 break;
844 default:
845 target_type = host_type & 0xf ;
846 break;
847 }
848
849#if defined(SOCK_CLOEXEC)
850 if (host_type & SOCK_CLOEXEC) {
851 target_type |= TARGET_SOCK_CLOEXEC;
852 }
853#endif
854
855#if defined(SOCK_NONBLOCK)
856 if (host_type & SOCK_NONBLOCK) {
857 target_type |= TARGET_SOCK_NONBLOCK;
858 }
859#endif
860
861 return target_type;
862}
863
864static abi_ulong target_brk;
865static abi_ulong target_original_brk;
866static abi_ulong brk_page;
867
868void target_set_brk(abi_ulong new_brk)
869{
870 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
871 brk_page = HOST_PAGE_ALIGN(target_brk);
872}
873
874
875#define DEBUGF_BRK(message, args...)
876
877
878abi_long do_brk(abi_ulong new_brk)
879{
880 abi_long mapped_addr;
881 abi_ulong new_alloc_size;
882
883 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
884
885 if (!new_brk) {
886 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
887 return target_brk;
888 }
889 if (new_brk < target_original_brk) {
890 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
891 target_brk);
892 return target_brk;
893 }
894
895
896
897 if (new_brk <= brk_page) {
898
899
900 if (new_brk > target_brk) {
901 memset(g2h(target_brk), 0, new_brk - target_brk);
902 }
903 target_brk = new_brk;
904 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
905 return target_brk;
906 }
907
908
909
910
911
912
913
914 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
915 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
916 PROT_READ|PROT_WRITE,
917 MAP_ANON|MAP_PRIVATE, 0, 0));
918
919 if (mapped_addr == brk_page) {
920
921
922
923
924
925
926
927 memset(g2h(target_brk), 0, brk_page - target_brk);
928
929 target_brk = new_brk;
930 brk_page = HOST_PAGE_ALIGN(target_brk);
931 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
932 target_brk);
933 return target_brk;
934 } else if (mapped_addr != -1) {
935
936
937
938 target_munmap(mapped_addr, new_alloc_size);
939 mapped_addr = -1;
940 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
941 }
942 else {
943 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
944 }
945
946#if defined(TARGET_ALPHA)
947
948
949 return -TARGET_ENOMEM;
950#endif
951
952 return target_brk;
953}
954
955static inline abi_long copy_from_user_fdset(fd_set *fds,
956 abi_ulong target_fds_addr,
957 int n)
958{
959 int i, nw, j, k;
960 abi_ulong b, *target_fds;
961
962 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
963 if (!(target_fds = lock_user(VERIFY_READ,
964 target_fds_addr,
965 sizeof(abi_ulong) * nw,
966 1)))
967 return -TARGET_EFAULT;
968
969 FD_ZERO(fds);
970 k = 0;
971 for (i = 0; i < nw; i++) {
972
973 __get_user(b, &target_fds[i]);
974 for (j = 0; j < TARGET_ABI_BITS; j++) {
975
976 if ((b >> j) & 1)
977 FD_SET(k, fds);
978 k++;
979 }
980 }
981
982 unlock_user(target_fds, target_fds_addr, 0);
983
984 return 0;
985}
986
987static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
988 abi_ulong target_fds_addr,
989 int n)
990{
991 if (target_fds_addr) {
992 if (copy_from_user_fdset(fds, target_fds_addr, n))
993 return -TARGET_EFAULT;
994 *fds_ptr = fds;
995 } else {
996 *fds_ptr = NULL;
997 }
998 return 0;
999}
1000
1001static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
1002 const fd_set *fds,
1003 int n)
1004{
1005 int i, nw, j, k;
1006 abi_long v;
1007 abi_ulong *target_fds;
1008
1009 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
1010 if (!(target_fds = lock_user(VERIFY_WRITE,
1011 target_fds_addr,
1012 sizeof(abi_ulong) * nw,
1013 0)))
1014 return -TARGET_EFAULT;
1015
1016 k = 0;
1017 for (i = 0; i < nw; i++) {
1018 v = 0;
1019 for (j = 0; j < TARGET_ABI_BITS; j++) {
1020 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
1021 k++;
1022 }
1023 __put_user(v, &target_fds[i]);
1024 }
1025
1026 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1027
1028 return 0;
1029}
1030
1031#if defined(__alpha__)
1032#define HOST_HZ 1024
1033#else
1034#define HOST_HZ 100
1035#endif
1036
1037static inline abi_long host_to_target_clock_t(long ticks)
1038{
1039#if HOST_HZ == TARGET_HZ
1040 return ticks;
1041#else
1042 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1043#endif
1044}
1045
1046static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1047 const struct rusage *rusage)
1048{
1049 struct target_rusage *target_rusage;
1050
1051 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1052 return -TARGET_EFAULT;
1053 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1054 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1055 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1056 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1057 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1058 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1059 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1060 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1061 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1062 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1063 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1064 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1065 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1066 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1067 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1068 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1069 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1070 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
1071 unlock_user_struct(target_rusage, target_addr, 1);
1072
1073 return 0;
1074}
1075
1076static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
1077{
1078 abi_ulong target_rlim_swap;
1079 rlim_t result;
1080
1081 target_rlim_swap = tswapal(target_rlim);
1082 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1083 return RLIM_INFINITY;
1084
1085 result = target_rlim_swap;
1086 if (target_rlim_swap != (rlim_t)result)
1087 return RLIM_INFINITY;
1088
1089 return result;
1090}
1091
1092static inline abi_ulong host_to_target_rlim(rlim_t rlim)
1093{
1094 abi_ulong target_rlim_swap;
1095 abi_ulong result;
1096
1097 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
1098 target_rlim_swap = TARGET_RLIM_INFINITY;
1099 else
1100 target_rlim_swap = rlim;
1101 result = tswapal(target_rlim_swap);
1102
1103 return result;
1104}
1105
1106static inline int target_to_host_resource(int code)
1107{
1108 switch (code) {
1109 case TARGET_RLIMIT_AS:
1110 return RLIMIT_AS;
1111 case TARGET_RLIMIT_CORE:
1112 return RLIMIT_CORE;
1113 case TARGET_RLIMIT_CPU:
1114 return RLIMIT_CPU;
1115 case TARGET_RLIMIT_DATA:
1116 return RLIMIT_DATA;
1117 case TARGET_RLIMIT_FSIZE:
1118 return RLIMIT_FSIZE;
1119 case TARGET_RLIMIT_LOCKS:
1120 return RLIMIT_LOCKS;
1121 case TARGET_RLIMIT_MEMLOCK:
1122 return RLIMIT_MEMLOCK;
1123 case TARGET_RLIMIT_MSGQUEUE:
1124 return RLIMIT_MSGQUEUE;
1125 case TARGET_RLIMIT_NICE:
1126 return RLIMIT_NICE;
1127 case TARGET_RLIMIT_NOFILE:
1128 return RLIMIT_NOFILE;
1129 case TARGET_RLIMIT_NPROC:
1130 return RLIMIT_NPROC;
1131 case TARGET_RLIMIT_RSS:
1132 return RLIMIT_RSS;
1133 case TARGET_RLIMIT_RTPRIO:
1134 return RLIMIT_RTPRIO;
1135 case TARGET_RLIMIT_SIGPENDING:
1136 return RLIMIT_SIGPENDING;
1137 case TARGET_RLIMIT_STACK:
1138 return RLIMIT_STACK;
1139 default:
1140 return code;
1141 }
1142}
1143
1144static inline abi_long copy_from_user_timeval(struct timeval *tv,
1145 abi_ulong target_tv_addr)
1146{
1147 struct target_timeval *target_tv;
1148
1149 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
1150 return -TARGET_EFAULT;
1151
1152 __get_user(tv->tv_sec, &target_tv->tv_sec);
1153 __get_user(tv->tv_usec, &target_tv->tv_usec);
1154
1155 unlock_user_struct(target_tv, target_tv_addr, 0);
1156
1157 return 0;
1158}
1159
1160static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1161 const struct timeval *tv)
1162{
1163 struct target_timeval *target_tv;
1164
1165 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
1166 return -TARGET_EFAULT;
1167
1168 __put_user(tv->tv_sec, &target_tv->tv_sec);
1169 __put_user(tv->tv_usec, &target_tv->tv_usec);
1170
1171 unlock_user_struct(target_tv, target_tv_addr, 1);
1172
1173 return 0;
1174}
1175
1176static inline abi_long copy_from_user_timezone(struct timezone *tz,
1177 abi_ulong target_tz_addr)
1178{
1179 struct target_timezone *target_tz;
1180
1181 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1182 return -TARGET_EFAULT;
1183 }
1184
1185 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1186 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1187
1188 unlock_user_struct(target_tz, target_tz_addr, 0);
1189
1190 return 0;
1191}
1192
1193#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1194#include <mqueue.h>
1195
1196static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1197 abi_ulong target_mq_attr_addr)
1198{
1199 struct target_mq_attr *target_mq_attr;
1200
1201 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1202 target_mq_attr_addr, 1))
1203 return -TARGET_EFAULT;
1204
1205 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1206 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1207 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1208 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1209
1210 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1211
1212 return 0;
1213}
1214
1215static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1216 const struct mq_attr *attr)
1217{
1218 struct target_mq_attr *target_mq_attr;
1219
1220 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1221 target_mq_attr_addr, 0))
1222 return -TARGET_EFAULT;
1223
1224 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1225 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1226 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1227 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1228
1229 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1230
1231 return 0;
1232}
1233#endif
1234
1235#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
1236
1237static abi_long do_select(int n,
1238 abi_ulong rfd_addr, abi_ulong wfd_addr,
1239 abi_ulong efd_addr, abi_ulong target_tv_addr)
1240{
1241 fd_set rfds, wfds, efds;
1242 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
1243 struct timeval tv;
1244 struct timespec ts, *ts_ptr;
1245 abi_long ret;
1246
1247 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1248 if (ret) {
1249 return ret;
1250 }
1251 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1252 if (ret) {
1253 return ret;
1254 }
1255 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1256 if (ret) {
1257 return ret;
1258 }
1259
1260 if (target_tv_addr) {
1261 if (copy_from_user_timeval(&tv, target_tv_addr))
1262 return -TARGET_EFAULT;
1263 ts.tv_sec = tv.tv_sec;
1264 ts.tv_nsec = tv.tv_usec * 1000;
1265 ts_ptr = &ts;
1266 } else {
1267 ts_ptr = NULL;
1268 }
1269
1270 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1271 ts_ptr, NULL));
1272
1273 if (!is_error(ret)) {
1274 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1275 return -TARGET_EFAULT;
1276 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1277 return -TARGET_EFAULT;
1278 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1279 return -TARGET_EFAULT;
1280
1281 if (target_tv_addr) {
1282 tv.tv_sec = ts.tv_sec;
1283 tv.tv_usec = ts.tv_nsec / 1000;
1284 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1285 return -TARGET_EFAULT;
1286 }
1287 }
1288 }
1289
1290 return ret;
1291}
1292
1293#if defined(TARGET_WANT_OLD_SYS_SELECT)
1294static abi_long do_old_select(abi_ulong arg1)
1295{
1296 struct target_sel_arg_struct *sel;
1297 abi_ulong inp, outp, exp, tvp;
1298 long nsel;
1299
1300 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1301 return -TARGET_EFAULT;
1302 }
1303
1304 nsel = tswapal(sel->n);
1305 inp = tswapal(sel->inp);
1306 outp = tswapal(sel->outp);
1307 exp = tswapal(sel->exp);
1308 tvp = tswapal(sel->tvp);
1309
1310 unlock_user_struct(sel, arg1, 0);
1311
1312 return do_select(nsel, inp, outp, exp, tvp);
1313}
1314#endif
1315#endif
1316
1317static abi_long do_pipe2(int host_pipe[], int flags)
1318{
1319#ifdef CONFIG_PIPE2
1320 return pipe2(host_pipe, flags);
1321#else
1322 return -ENOSYS;
1323#endif
1324}
1325
1326static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1327 int flags, int is_pipe2)
1328{
1329 int host_pipe[2];
1330 abi_long ret;
1331 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1332
1333 if (is_error(ret))
1334 return get_errno(ret);
1335
1336
1337
1338 if (!is_pipe2) {
1339#if defined(TARGET_ALPHA)
1340 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1341 return host_pipe[0];
1342#elif defined(TARGET_MIPS)
1343 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1344 return host_pipe[0];
1345#elif defined(TARGET_SH4)
1346 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1347 return host_pipe[0];
1348#elif defined(TARGET_SPARC)
1349 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1350 return host_pipe[0];
1351#endif
1352 }
1353
1354 if (put_user_s32(host_pipe[0], pipedes)
1355 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1356 return -TARGET_EFAULT;
1357 return get_errno(ret);
1358}
1359
1360static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1361 abi_ulong target_addr,
1362 socklen_t len)
1363{
1364 struct target_ip_mreqn *target_smreqn;
1365
1366 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1367 if (!target_smreqn)
1368 return -TARGET_EFAULT;
1369 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1370 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1371 if (len == sizeof(struct target_ip_mreqn))
1372 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
1373 unlock_user(target_smreqn, target_addr, 0);
1374
1375 return 0;
1376}
1377
1378static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
1379 abi_ulong target_addr,
1380 socklen_t len)
1381{
1382 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1383 sa_family_t sa_family;
1384 struct target_sockaddr *target_saddr;
1385
1386 if (fd_trans_target_to_host_addr(fd)) {
1387 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1388 }
1389
1390 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1391 if (!target_saddr)
1392 return -TARGET_EFAULT;
1393
1394 sa_family = tswap16(target_saddr->sa_family);
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404 if (sa_family == AF_UNIX) {
1405 if (len < unix_maxlen && len > 0) {
1406 char *cp = (char*)target_saddr;
1407
1408 if ( cp[len-1] && !cp[len] )
1409 len++;
1410 }
1411 if (len > unix_maxlen)
1412 len = unix_maxlen;
1413 }
1414
1415 memcpy(addr, target_saddr, len);
1416 addr->sa_family = sa_family;
1417 if (sa_family == AF_NETLINK) {
1418 struct sockaddr_nl *nladdr;
1419
1420 nladdr = (struct sockaddr_nl *)addr;
1421 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1422 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1423 } else if (sa_family == AF_PACKET) {
1424 struct target_sockaddr_ll *lladdr;
1425
1426 lladdr = (struct target_sockaddr_ll *)addr;
1427 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1428 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1429 }
1430 unlock_user(target_saddr, target_addr, 0);
1431
1432 return 0;
1433}
1434
1435static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1436 struct sockaddr *addr,
1437 socklen_t len)
1438{
1439 struct target_sockaddr *target_saddr;
1440
1441 if (len == 0) {
1442 return 0;
1443 }
1444 assert(addr);
1445
1446 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1447 if (!target_saddr)
1448 return -TARGET_EFAULT;
1449 memcpy(target_saddr, addr, len);
1450 if (len >= offsetof(struct target_sockaddr, sa_family) +
1451 sizeof(target_saddr->sa_family)) {
1452 target_saddr->sa_family = tswap16(addr->sa_family);
1453 }
1454 if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
1455 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1456 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1457 target_nl->nl_groups = tswap32(target_nl->nl_groups);
1458 } else if (addr->sa_family == AF_PACKET) {
1459 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1460 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1461 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
1462 } else if (addr->sa_family == AF_INET6 &&
1463 len >= sizeof(struct target_sockaddr_in6)) {
1464 struct target_sockaddr_in6 *target_in6 =
1465 (struct target_sockaddr_in6 *)target_saddr;
1466 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
1467 }
1468 unlock_user(target_saddr, target_addr, len);
1469
1470 return 0;
1471}
1472
1473static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1474 struct target_msghdr *target_msgh)
1475{
1476 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1477 abi_long msg_controllen;
1478 abi_ulong target_cmsg_addr;
1479 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
1480 socklen_t space = 0;
1481
1482 msg_controllen = tswapal(target_msgh->msg_controllen);
1483 if (msg_controllen < sizeof (struct target_cmsghdr))
1484 goto the_end;
1485 target_cmsg_addr = tswapal(target_msgh->msg_control);
1486 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1487 target_cmsg_start = target_cmsg;
1488 if (!target_cmsg)
1489 return -TARGET_EFAULT;
1490
1491 while (cmsg && target_cmsg) {
1492 void *data = CMSG_DATA(cmsg);
1493 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1494
1495 int len = tswapal(target_cmsg->cmsg_len)
1496 - sizeof(struct target_cmsghdr);
1497
1498 space += CMSG_SPACE(len);
1499 if (space > msgh->msg_controllen) {
1500 space -= CMSG_SPACE(len);
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510 gemu_log("Host cmsg overflow\n");
1511 break;
1512 }
1513
1514 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1515 cmsg->cmsg_level = SOL_SOCKET;
1516 } else {
1517 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1518 }
1519 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1520 cmsg->cmsg_len = CMSG_LEN(len);
1521
1522 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
1523 int *fd = (int *)data;
1524 int *target_fd = (int *)target_data;
1525 int i, numfds = len / sizeof(int);
1526
1527 for (i = 0; i < numfds; i++) {
1528 __get_user(fd[i], target_fd + i);
1529 }
1530 } else if (cmsg->cmsg_level == SOL_SOCKET
1531 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1532 struct ucred *cred = (struct ucred *)data;
1533 struct target_ucred *target_cred =
1534 (struct target_ucred *)target_data;
1535
1536 __get_user(cred->pid, &target_cred->pid);
1537 __get_user(cred->uid, &target_cred->uid);
1538 __get_user(cred->gid, &target_cred->gid);
1539 } else {
1540 gemu_log("Unsupported ancillary data: %d/%d\n",
1541 cmsg->cmsg_level, cmsg->cmsg_type);
1542 memcpy(data, target_data, len);
1543 }
1544
1545 cmsg = CMSG_NXTHDR(msgh, cmsg);
1546 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1547 target_cmsg_start);
1548 }
1549 unlock_user(target_cmsg, target_cmsg_addr, 0);
1550 the_end:
1551 msgh->msg_controllen = space;
1552 return 0;
1553}
1554
1555static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1556 struct msghdr *msgh)
1557{
1558 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1559 abi_long msg_controllen;
1560 abi_ulong target_cmsg_addr;
1561 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
1562 socklen_t space = 0;
1563
1564 msg_controllen = tswapal(target_msgh->msg_controllen);
1565 if (msg_controllen < sizeof (struct target_cmsghdr))
1566 goto the_end;
1567 target_cmsg_addr = tswapal(target_msgh->msg_control);
1568 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1569 target_cmsg_start = target_cmsg;
1570 if (!target_cmsg)
1571 return -TARGET_EFAULT;
1572
1573 while (cmsg && target_cmsg) {
1574 void *data = CMSG_DATA(cmsg);
1575 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1576
1577 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
1578 int tgt_len, tgt_space;
1579
1580
1581
1582
1583
1584
1585
1586 if (msg_controllen < sizeof(struct target_cmsghdr)) {
1587 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
1588 break;
1589 }
1590
1591 if (cmsg->cmsg_level == SOL_SOCKET) {
1592 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1593 } else {
1594 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1595 }
1596 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1597
1598
1599
1600
1601 tgt_len = len;
1602 switch (cmsg->cmsg_level) {
1603 case SOL_SOCKET:
1604 switch (cmsg->cmsg_type) {
1605 case SO_TIMESTAMP:
1606 tgt_len = sizeof(struct target_timeval);
1607 break;
1608 default:
1609 break;
1610 }
1611 break;
1612 default:
1613 break;
1614 }
1615
1616 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
1617 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
1618 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
1619 }
1620
1621
1622
1623
1624
1625
1626 switch (cmsg->cmsg_level) {
1627 case SOL_SOCKET:
1628 switch (cmsg->cmsg_type) {
1629 case SCM_RIGHTS:
1630 {
1631 int *fd = (int *)data;
1632 int *target_fd = (int *)target_data;
1633 int i, numfds = tgt_len / sizeof(int);
1634
1635 for (i = 0; i < numfds; i++) {
1636 __put_user(fd[i], target_fd + i);
1637 }
1638 break;
1639 }
1640 case SO_TIMESTAMP:
1641 {
1642 struct timeval *tv = (struct timeval *)data;
1643 struct target_timeval *target_tv =
1644 (struct target_timeval *)target_data;
1645
1646 if (len != sizeof(struct timeval) ||
1647 tgt_len != sizeof(struct target_timeval)) {
1648 goto unimplemented;
1649 }
1650
1651
1652 __put_user(tv->tv_sec, &target_tv->tv_sec);
1653 __put_user(tv->tv_usec, &target_tv->tv_usec);
1654 break;
1655 }
1656 case SCM_CREDENTIALS:
1657 {
1658 struct ucred *cred = (struct ucred *)data;
1659 struct target_ucred *target_cred =
1660 (struct target_ucred *)target_data;
1661
1662 __put_user(cred->pid, &target_cred->pid);
1663 __put_user(cred->uid, &target_cred->uid);
1664 __put_user(cred->gid, &target_cred->gid);
1665 break;
1666 }
1667 default:
1668 goto unimplemented;
1669 }
1670 break;
1671
1672 case SOL_IP:
1673 switch (cmsg->cmsg_type) {
1674 case IP_TTL:
1675 {
1676 uint32_t *v = (uint32_t *)data;
1677 uint32_t *t_int = (uint32_t *)target_data;
1678
1679 if (len != sizeof(uint32_t) ||
1680 tgt_len != sizeof(uint32_t)) {
1681 goto unimplemented;
1682 }
1683 __put_user(*v, t_int);
1684 break;
1685 }
1686 case IP_RECVERR:
1687 {
1688 struct errhdr_t {
1689 struct sock_extended_err ee;
1690 struct sockaddr_in offender;
1691 };
1692 struct errhdr_t *errh = (struct errhdr_t *)data;
1693 struct errhdr_t *target_errh =
1694 (struct errhdr_t *)target_data;
1695
1696 if (len != sizeof(struct errhdr_t) ||
1697 tgt_len != sizeof(struct errhdr_t)) {
1698 goto unimplemented;
1699 }
1700 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1701 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1702 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1703 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1704 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1705 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1706 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1707 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1708 (void *) &errh->offender, sizeof(errh->offender));
1709 break;
1710 }
1711 default:
1712 goto unimplemented;
1713 }
1714 break;
1715
1716 case SOL_IPV6:
1717 switch (cmsg->cmsg_type) {
1718 case IPV6_HOPLIMIT:
1719 {
1720 uint32_t *v = (uint32_t *)data;
1721 uint32_t *t_int = (uint32_t *)target_data;
1722
1723 if (len != sizeof(uint32_t) ||
1724 tgt_len != sizeof(uint32_t)) {
1725 goto unimplemented;
1726 }
1727 __put_user(*v, t_int);
1728 break;
1729 }
1730 case IPV6_RECVERR:
1731 {
1732 struct errhdr6_t {
1733 struct sock_extended_err ee;
1734 struct sockaddr_in6 offender;
1735 };
1736 struct errhdr6_t *errh = (struct errhdr6_t *)data;
1737 struct errhdr6_t *target_errh =
1738 (struct errhdr6_t *)target_data;
1739
1740 if (len != sizeof(struct errhdr6_t) ||
1741 tgt_len != sizeof(struct errhdr6_t)) {
1742 goto unimplemented;
1743 }
1744 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1745 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1746 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1747 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1748 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1749 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1750 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1751 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1752 (void *) &errh->offender, sizeof(errh->offender));
1753 break;
1754 }
1755 default:
1756 goto unimplemented;
1757 }
1758 break;
1759
1760 default:
1761 unimplemented:
1762 gemu_log("Unsupported ancillary data: %d/%d\n",
1763 cmsg->cmsg_level, cmsg->cmsg_type);
1764 memcpy(target_data, data, MIN(len, tgt_len));
1765 if (tgt_len > len) {
1766 memset(target_data + len, 0, tgt_len - len);
1767 }
1768 }
1769
1770 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
1771 tgt_space = TARGET_CMSG_SPACE(tgt_len);
1772 if (msg_controllen < tgt_space) {
1773 tgt_space = msg_controllen;
1774 }
1775 msg_controllen -= tgt_space;
1776 space += tgt_space;
1777 cmsg = CMSG_NXTHDR(msgh, cmsg);
1778 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1779 target_cmsg_start);
1780 }
1781 unlock_user(target_cmsg, target_cmsg_addr, space);
1782 the_end:
1783 target_msgh->msg_controllen = tswapal(space);
1784 return 0;
1785}
1786
1787
1788static abi_long do_setsockopt(int sockfd, int level, int optname,
1789 abi_ulong optval_addr, socklen_t optlen)
1790{
1791 abi_long ret;
1792 int val;
1793 struct ip_mreqn *ip_mreq;
1794 struct ip_mreq_source *ip_mreq_source;
1795
1796 switch(level) {
1797 case SOL_TCP:
1798
1799 if (optlen < sizeof(uint32_t))
1800 return -TARGET_EINVAL;
1801
1802 if (get_user_u32(val, optval_addr))
1803 return -TARGET_EFAULT;
1804 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1805 break;
1806 case SOL_IP:
1807 switch(optname) {
1808 case IP_TOS:
1809 case IP_TTL:
1810 case IP_HDRINCL:
1811 case IP_ROUTER_ALERT:
1812 case IP_RECVOPTS:
1813 case IP_RETOPTS:
1814 case IP_PKTINFO:
1815 case IP_MTU_DISCOVER:
1816 case IP_RECVERR:
1817 case IP_RECVTTL:
1818 case IP_RECVTOS:
1819#ifdef IP_FREEBIND
1820 case IP_FREEBIND:
1821#endif
1822 case IP_MULTICAST_TTL:
1823 case IP_MULTICAST_LOOP:
1824 val = 0;
1825 if (optlen >= sizeof(uint32_t)) {
1826 if (get_user_u32(val, optval_addr))
1827 return -TARGET_EFAULT;
1828 } else if (optlen >= 1) {
1829 if (get_user_u8(val, optval_addr))
1830 return -TARGET_EFAULT;
1831 }
1832 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1833 break;
1834 case IP_ADD_MEMBERSHIP:
1835 case IP_DROP_MEMBERSHIP:
1836 if (optlen < sizeof (struct target_ip_mreq) ||
1837 optlen > sizeof (struct target_ip_mreqn))
1838 return -TARGET_EINVAL;
1839
1840 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1841 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1842 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1843 break;
1844
1845 case IP_BLOCK_SOURCE:
1846 case IP_UNBLOCK_SOURCE:
1847 case IP_ADD_SOURCE_MEMBERSHIP:
1848 case IP_DROP_SOURCE_MEMBERSHIP:
1849 if (optlen != sizeof (struct target_ip_mreq_source))
1850 return -TARGET_EINVAL;
1851
1852 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1853 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1854 unlock_user (ip_mreq_source, optval_addr, 0);
1855 break;
1856
1857 default:
1858 goto unimplemented;
1859 }
1860 break;
1861 case SOL_IPV6:
1862 switch (optname) {
1863 case IPV6_MTU_DISCOVER:
1864 case IPV6_MTU:
1865 case IPV6_V6ONLY:
1866 case IPV6_RECVPKTINFO:
1867 case IPV6_UNICAST_HOPS:
1868 case IPV6_MULTICAST_HOPS:
1869 case IPV6_MULTICAST_LOOP:
1870 case IPV6_RECVERR:
1871 case IPV6_RECVHOPLIMIT:
1872 case IPV6_2292HOPLIMIT:
1873 case IPV6_CHECKSUM:
1874 val = 0;
1875 if (optlen < sizeof(uint32_t)) {
1876 return -TARGET_EINVAL;
1877 }
1878 if (get_user_u32(val, optval_addr)) {
1879 return -TARGET_EFAULT;
1880 }
1881 ret = get_errno(setsockopt(sockfd, level, optname,
1882 &val, sizeof(val)));
1883 break;
1884 case IPV6_PKTINFO:
1885 {
1886 struct in6_pktinfo pki;
1887
1888 if (optlen < sizeof(pki)) {
1889 return -TARGET_EINVAL;
1890 }
1891
1892 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
1893 return -TARGET_EFAULT;
1894 }
1895
1896 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
1897
1898 ret = get_errno(setsockopt(sockfd, level, optname,
1899 &pki, sizeof(pki)));
1900 break;
1901 }
1902 default:
1903 goto unimplemented;
1904 }
1905 break;
1906 case SOL_ICMPV6:
1907 switch (optname) {
1908 case ICMPV6_FILTER:
1909 {
1910 struct icmp6_filter icmp6f;
1911
1912 if (optlen > sizeof(icmp6f)) {
1913 optlen = sizeof(icmp6f);
1914 }
1915
1916 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
1917 return -TARGET_EFAULT;
1918 }
1919
1920 for (val = 0; val < 8; val++) {
1921 icmp6f.data[val] = tswap32(icmp6f.data[val]);
1922 }
1923
1924 ret = get_errno(setsockopt(sockfd, level, optname,
1925 &icmp6f, optlen));
1926 break;
1927 }
1928 default:
1929 goto unimplemented;
1930 }
1931 break;
1932 case SOL_RAW:
1933 switch (optname) {
1934 case ICMP_FILTER:
1935 case IPV6_CHECKSUM:
1936
1937 if (optlen < sizeof(uint32_t)) {
1938 return -TARGET_EINVAL;
1939 }
1940
1941 if (get_user_u32(val, optval_addr)) {
1942 return -TARGET_EFAULT;
1943 }
1944 ret = get_errno(setsockopt(sockfd, level, optname,
1945 &val, sizeof(val)));
1946 break;
1947
1948 default:
1949 goto unimplemented;
1950 }
1951 break;
1952 case TARGET_SOL_SOCKET:
1953 switch (optname) {
1954 case TARGET_SO_RCVTIMEO:
1955 {
1956 struct timeval tv;
1957
1958 optname = SO_RCVTIMEO;
1959
1960set_timeout:
1961 if (optlen != sizeof(struct target_timeval)) {
1962 return -TARGET_EINVAL;
1963 }
1964
1965 if (copy_from_user_timeval(&tv, optval_addr)) {
1966 return -TARGET_EFAULT;
1967 }
1968
1969 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1970 &tv, sizeof(tv)));
1971 return ret;
1972 }
1973 case TARGET_SO_SNDTIMEO:
1974 optname = SO_SNDTIMEO;
1975 goto set_timeout;
1976 case TARGET_SO_ATTACH_FILTER:
1977 {
1978 struct target_sock_fprog *tfprog;
1979 struct target_sock_filter *tfilter;
1980 struct sock_fprog fprog;
1981 struct sock_filter *filter;
1982 int i;
1983
1984 if (optlen != sizeof(*tfprog)) {
1985 return -TARGET_EINVAL;
1986 }
1987 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
1988 return -TARGET_EFAULT;
1989 }
1990 if (!lock_user_struct(VERIFY_READ, tfilter,
1991 tswapal(tfprog->filter), 0)) {
1992 unlock_user_struct(tfprog, optval_addr, 1);
1993 return -TARGET_EFAULT;
1994 }
1995
1996 fprog.len = tswap16(tfprog->len);
1997 filter = g_try_new(struct sock_filter, fprog.len);
1998 if (filter == NULL) {
1999 unlock_user_struct(tfilter, tfprog->filter, 1);
2000 unlock_user_struct(tfprog, optval_addr, 1);
2001 return -TARGET_ENOMEM;
2002 }
2003 for (i = 0; i < fprog.len; i++) {
2004 filter[i].code = tswap16(tfilter[i].code);
2005 filter[i].jt = tfilter[i].jt;
2006 filter[i].jf = tfilter[i].jf;
2007 filter[i].k = tswap32(tfilter[i].k);
2008 }
2009 fprog.filter = filter;
2010
2011 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2012 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
2013 g_free(filter);
2014
2015 unlock_user_struct(tfilter, tfprog->filter, 1);
2016 unlock_user_struct(tfprog, optval_addr, 1);
2017 return ret;
2018 }
2019 case TARGET_SO_BINDTODEVICE:
2020 {
2021 char *dev_ifname, *addr_ifname;
2022
2023 if (optlen > IFNAMSIZ - 1) {
2024 optlen = IFNAMSIZ - 1;
2025 }
2026 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2027 if (!dev_ifname) {
2028 return -TARGET_EFAULT;
2029 }
2030 optname = SO_BINDTODEVICE;
2031 addr_ifname = alloca(IFNAMSIZ);
2032 memcpy(addr_ifname, dev_ifname, optlen);
2033 addr_ifname[optlen] = 0;
2034 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2035 addr_ifname, optlen));
2036 unlock_user (dev_ifname, optval_addr, 0);
2037 return ret;
2038 }
2039 case TARGET_SO_LINGER:
2040 {
2041 struct linger lg;
2042 struct target_linger *tlg;
2043
2044 if (optlen != sizeof(struct target_linger)) {
2045 return -TARGET_EINVAL;
2046 }
2047 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2048 return -TARGET_EFAULT;
2049 }
2050 __get_user(lg.l_onoff, &tlg->l_onoff);
2051 __get_user(lg.l_linger, &tlg->l_linger);
2052 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2053 &lg, sizeof(lg)));
2054 unlock_user_struct(tlg, optval_addr, 0);
2055 return ret;
2056 }
2057
2058 case TARGET_SO_DEBUG:
2059 optname = SO_DEBUG;
2060 break;
2061 case TARGET_SO_REUSEADDR:
2062 optname = SO_REUSEADDR;
2063 break;
2064#ifdef SO_REUSEPORT
2065 case TARGET_SO_REUSEPORT:
2066 optname = SO_REUSEPORT;
2067 break;
2068#endif
2069 case TARGET_SO_TYPE:
2070 optname = SO_TYPE;
2071 break;
2072 case TARGET_SO_ERROR:
2073 optname = SO_ERROR;
2074 break;
2075 case TARGET_SO_DONTROUTE:
2076 optname = SO_DONTROUTE;
2077 break;
2078 case TARGET_SO_BROADCAST:
2079 optname = SO_BROADCAST;
2080 break;
2081 case TARGET_SO_SNDBUF:
2082 optname = SO_SNDBUF;
2083 break;
2084 case TARGET_SO_SNDBUFFORCE:
2085 optname = SO_SNDBUFFORCE;
2086 break;
2087 case TARGET_SO_RCVBUF:
2088 optname = SO_RCVBUF;
2089 break;
2090 case TARGET_SO_RCVBUFFORCE:
2091 optname = SO_RCVBUFFORCE;
2092 break;
2093 case TARGET_SO_KEEPALIVE:
2094 optname = SO_KEEPALIVE;
2095 break;
2096 case TARGET_SO_OOBINLINE:
2097 optname = SO_OOBINLINE;
2098 break;
2099 case TARGET_SO_NO_CHECK:
2100 optname = SO_NO_CHECK;
2101 break;
2102 case TARGET_SO_PRIORITY:
2103 optname = SO_PRIORITY;
2104 break;
2105#ifdef SO_BSDCOMPAT
2106 case TARGET_SO_BSDCOMPAT:
2107 optname = SO_BSDCOMPAT;
2108 break;
2109#endif
2110 case TARGET_SO_PASSCRED:
2111 optname = SO_PASSCRED;
2112 break;
2113 case TARGET_SO_PASSSEC:
2114 optname = SO_PASSSEC;
2115 break;
2116 case TARGET_SO_TIMESTAMP:
2117 optname = SO_TIMESTAMP;
2118 break;
2119 case TARGET_SO_RCVLOWAT:
2120 optname = SO_RCVLOWAT;
2121 break;
2122 default:
2123 goto unimplemented;
2124 }
2125 if (optlen < sizeof(uint32_t))
2126 return -TARGET_EINVAL;
2127
2128 if (get_user_u32(val, optval_addr))
2129 return -TARGET_EFAULT;
2130 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
2131 break;
2132 default:
2133 unimplemented:
2134 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
2135 ret = -TARGET_ENOPROTOOPT;
2136 }
2137 return ret;
2138}
2139
2140
2141static abi_long do_getsockopt(int sockfd, int level, int optname,
2142 abi_ulong optval_addr, abi_ulong optlen)
2143{
2144 abi_long ret;
2145 int len, val;
2146 socklen_t lv;
2147
2148 switch(level) {
2149 case TARGET_SOL_SOCKET:
2150 level = SOL_SOCKET;
2151 switch (optname) {
2152
2153 case TARGET_SO_RCVTIMEO:
2154 case TARGET_SO_SNDTIMEO:
2155 case TARGET_SO_PEERNAME:
2156 goto unimplemented;
2157 case TARGET_SO_PEERCRED: {
2158 struct ucred cr;
2159 socklen_t crlen;
2160 struct target_ucred *tcr;
2161
2162 if (get_user_u32(len, optlen)) {
2163 return -TARGET_EFAULT;
2164 }
2165 if (len < 0) {
2166 return -TARGET_EINVAL;
2167 }
2168
2169 crlen = sizeof(cr);
2170 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2171 &cr, &crlen));
2172 if (ret < 0) {
2173 return ret;
2174 }
2175 if (len > crlen) {
2176 len = crlen;
2177 }
2178 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2179 return -TARGET_EFAULT;
2180 }
2181 __put_user(cr.pid, &tcr->pid);
2182 __put_user(cr.uid, &tcr->uid);
2183 __put_user(cr.gid, &tcr->gid);
2184 unlock_user_struct(tcr, optval_addr, 1);
2185 if (put_user_u32(len, optlen)) {
2186 return -TARGET_EFAULT;
2187 }
2188 break;
2189 }
2190 case TARGET_SO_LINGER:
2191 {
2192 struct linger lg;
2193 socklen_t lglen;
2194 struct target_linger *tlg;
2195
2196 if (get_user_u32(len, optlen)) {
2197 return -TARGET_EFAULT;
2198 }
2199 if (len < 0) {
2200 return -TARGET_EINVAL;
2201 }
2202
2203 lglen = sizeof(lg);
2204 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2205 &lg, &lglen));
2206 if (ret < 0) {
2207 return ret;
2208 }
2209 if (len > lglen) {
2210 len = lglen;
2211 }
2212 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2213 return -TARGET_EFAULT;
2214 }
2215 __put_user(lg.l_onoff, &tlg->l_onoff);
2216 __put_user(lg.l_linger, &tlg->l_linger);
2217 unlock_user_struct(tlg, optval_addr, 1);
2218 if (put_user_u32(len, optlen)) {
2219 return -TARGET_EFAULT;
2220 }
2221 break;
2222 }
2223
2224 case TARGET_SO_DEBUG:
2225 optname = SO_DEBUG;
2226 goto int_case;
2227 case TARGET_SO_REUSEADDR:
2228 optname = SO_REUSEADDR;
2229 goto int_case;
2230#ifdef SO_REUSEPORT
2231 case TARGET_SO_REUSEPORT:
2232 optname = SO_REUSEPORT;
2233 goto int_case;
2234#endif
2235 case TARGET_SO_TYPE:
2236 optname = SO_TYPE;
2237 goto int_case;
2238 case TARGET_SO_ERROR:
2239 optname = SO_ERROR;
2240 goto int_case;
2241 case TARGET_SO_DONTROUTE:
2242 optname = SO_DONTROUTE;
2243 goto int_case;
2244 case TARGET_SO_BROADCAST:
2245 optname = SO_BROADCAST;
2246 goto int_case;
2247 case TARGET_SO_SNDBUF:
2248 optname = SO_SNDBUF;
2249 goto int_case;
2250 case TARGET_SO_RCVBUF:
2251 optname = SO_RCVBUF;
2252 goto int_case;
2253 case TARGET_SO_KEEPALIVE:
2254 optname = SO_KEEPALIVE;
2255 goto int_case;
2256 case TARGET_SO_OOBINLINE:
2257 optname = SO_OOBINLINE;
2258 goto int_case;
2259 case TARGET_SO_NO_CHECK:
2260 optname = SO_NO_CHECK;
2261 goto int_case;
2262 case TARGET_SO_PRIORITY:
2263 optname = SO_PRIORITY;
2264 goto int_case;
2265#ifdef SO_BSDCOMPAT
2266 case TARGET_SO_BSDCOMPAT:
2267 optname = SO_BSDCOMPAT;
2268 goto int_case;
2269#endif
2270 case TARGET_SO_PASSCRED:
2271 optname = SO_PASSCRED;
2272 goto int_case;
2273 case TARGET_SO_TIMESTAMP:
2274 optname = SO_TIMESTAMP;
2275 goto int_case;
2276 case TARGET_SO_RCVLOWAT:
2277 optname = SO_RCVLOWAT;
2278 goto int_case;
2279 case TARGET_SO_ACCEPTCONN:
2280 optname = SO_ACCEPTCONN;
2281 goto int_case;
2282 default:
2283 goto int_case;
2284 }
2285 break;
2286 case SOL_TCP:
2287
2288 int_case:
2289 if (get_user_u32(len, optlen))
2290 return -TARGET_EFAULT;
2291 if (len < 0)
2292 return -TARGET_EINVAL;
2293 lv = sizeof(lv);
2294 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2295 if (ret < 0)
2296 return ret;
2297 if (optname == SO_TYPE) {
2298 val = host_to_target_sock_type(val);
2299 }
2300 if (len > lv)
2301 len = lv;
2302 if (len == 4) {
2303 if (put_user_u32(val, optval_addr))
2304 return -TARGET_EFAULT;
2305 } else {
2306 if (put_user_u8(val, optval_addr))
2307 return -TARGET_EFAULT;
2308 }
2309 if (put_user_u32(len, optlen))
2310 return -TARGET_EFAULT;
2311 break;
2312 case SOL_IP:
2313 switch(optname) {
2314 case IP_TOS:
2315 case IP_TTL:
2316 case IP_HDRINCL:
2317 case IP_ROUTER_ALERT:
2318 case IP_RECVOPTS:
2319 case IP_RETOPTS:
2320 case IP_PKTINFO:
2321 case IP_MTU_DISCOVER:
2322 case IP_RECVERR:
2323 case IP_RECVTOS:
2324#ifdef IP_FREEBIND
2325 case IP_FREEBIND:
2326#endif
2327 case IP_MULTICAST_TTL:
2328 case IP_MULTICAST_LOOP:
2329 if (get_user_u32(len, optlen))
2330 return -TARGET_EFAULT;
2331 if (len < 0)
2332 return -TARGET_EINVAL;
2333 lv = sizeof(lv);
2334 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2335 if (ret < 0)
2336 return ret;
2337 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2338 len = 1;
2339 if (put_user_u32(len, optlen)
2340 || put_user_u8(val, optval_addr))
2341 return -TARGET_EFAULT;
2342 } else {
2343 if (len > sizeof(int))
2344 len = sizeof(int);
2345 if (put_user_u32(len, optlen)
2346 || put_user_u32(val, optval_addr))
2347 return -TARGET_EFAULT;
2348 }
2349 break;
2350 default:
2351 ret = -TARGET_ENOPROTOOPT;
2352 break;
2353 }
2354 break;
2355 default:
2356 unimplemented:
2357 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2358 level, optname);
2359 ret = -TARGET_EOPNOTSUPP;
2360 break;
2361 }
2362 return ret;
2363}
2364
2365
2366
2367
2368
2369static void target_to_host_low_high(abi_ulong tlow,
2370 abi_ulong thigh,
2371 unsigned long *hlow,
2372 unsigned long *hhigh)
2373{
2374 uint64_t off = tlow |
2375 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
2376 TARGET_LONG_BITS / 2;
2377
2378 *hlow = off;
2379 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
2380}
2381
2382static struct iovec *lock_iovec(int type, abi_ulong target_addr,
2383 abi_ulong count, int copy)
2384{
2385 struct target_iovec *target_vec;
2386 struct iovec *vec;
2387 abi_ulong total_len, max_len;
2388 int i;
2389 int err = 0;
2390 bool bad_address = false;
2391
2392 if (count == 0) {
2393 errno = 0;
2394 return NULL;
2395 }
2396 if (count > IOV_MAX) {
2397 errno = EINVAL;
2398 return NULL;
2399 }
2400
2401 vec = g_try_new0(struct iovec, count);
2402 if (vec == NULL) {
2403 errno = ENOMEM;
2404 return NULL;
2405 }
2406
2407 target_vec = lock_user(VERIFY_READ, target_addr,
2408 count * sizeof(struct target_iovec), 1);
2409 if (target_vec == NULL) {
2410 err = EFAULT;
2411 goto fail2;
2412 }
2413
2414
2415
2416 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2417 total_len = 0;
2418
2419 for (i = 0; i < count; i++) {
2420 abi_ulong base = tswapal(target_vec[i].iov_base);
2421 abi_long len = tswapal(target_vec[i].iov_len);
2422
2423 if (len < 0) {
2424 err = EINVAL;
2425 goto fail;
2426 } else if (len == 0) {
2427
2428 vec[i].iov_base = 0;
2429 } else {
2430 vec[i].iov_base = lock_user(type, base, len, copy);
2431
2432
2433
2434
2435 if (!vec[i].iov_base) {
2436 if (i == 0) {
2437 err = EFAULT;
2438 goto fail;
2439 } else {
2440 bad_address = true;
2441 }
2442 }
2443 if (bad_address) {
2444 len = 0;
2445 }
2446 if (len > max_len - total_len) {
2447 len = max_len - total_len;
2448 }
2449 }
2450 vec[i].iov_len = len;
2451 total_len += len;
2452 }
2453
2454 unlock_user(target_vec, target_addr, 0);
2455 return vec;
2456
2457 fail:
2458 while (--i >= 0) {
2459 if (tswapal(target_vec[i].iov_len) > 0) {
2460 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2461 }
2462 }
2463 unlock_user(target_vec, target_addr, 0);
2464 fail2:
2465 g_free(vec);
2466 errno = err;
2467 return NULL;
2468}
2469
2470static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
2471 abi_ulong count, int copy)
2472{
2473 struct target_iovec *target_vec;
2474 int i;
2475
2476 target_vec = lock_user(VERIFY_READ, target_addr,
2477 count * sizeof(struct target_iovec), 1);
2478 if (target_vec) {
2479 for (i = 0; i < count; i++) {
2480 abi_ulong base = tswapal(target_vec[i].iov_base);
2481 abi_long len = tswapal(target_vec[i].iov_len);
2482 if (len < 0) {
2483 break;
2484 }
2485 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2486 }
2487 unlock_user(target_vec, target_addr, 0);
2488 }
2489
2490 g_free(vec);
2491}
2492
2493static inline int target_to_host_sock_type(int *type)
2494{
2495 int host_type = 0;
2496 int target_type = *type;
2497
2498 switch (target_type & TARGET_SOCK_TYPE_MASK) {
2499 case TARGET_SOCK_DGRAM:
2500 host_type = SOCK_DGRAM;
2501 break;
2502 case TARGET_SOCK_STREAM:
2503 host_type = SOCK_STREAM;
2504 break;
2505 default:
2506 host_type = target_type & TARGET_SOCK_TYPE_MASK;
2507 break;
2508 }
2509 if (target_type & TARGET_SOCK_CLOEXEC) {
2510#if defined(SOCK_CLOEXEC)
2511 host_type |= SOCK_CLOEXEC;
2512#else
2513 return -TARGET_EINVAL;
2514#endif
2515 }
2516 if (target_type & TARGET_SOCK_NONBLOCK) {
2517#if defined(SOCK_NONBLOCK)
2518 host_type |= SOCK_NONBLOCK;
2519#elif !defined(O_NONBLOCK)
2520 return -TARGET_EINVAL;
2521#endif
2522 }
2523 *type = host_type;
2524 return 0;
2525}
2526
2527
2528static int sock_flags_fixup(int fd, int target_type)
2529{
2530#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2531 if (target_type & TARGET_SOCK_NONBLOCK) {
2532 int flags = fcntl(fd, F_GETFL);
2533 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2534 close(fd);
2535 return -TARGET_EINVAL;
2536 }
2537 }
2538#endif
2539 return fd;
2540}
2541
2542
2543static abi_long do_socket(int domain, int type, int protocol)
2544{
2545 int target_type = type;
2546 int ret;
2547
2548 ret = target_to_host_sock_type(&type);
2549 if (ret) {
2550 return ret;
2551 }
2552
2553 if (domain == PF_NETLINK && !(
2554#ifdef CONFIG_RTNETLINK
2555 protocol == NETLINK_ROUTE ||
2556#endif
2557 protocol == NETLINK_KOBJECT_UEVENT ||
2558 protocol == NETLINK_AUDIT)) {
2559 return -EPFNOSUPPORT;
2560 }
2561
2562 if (domain == AF_PACKET ||
2563 (domain == AF_INET && type == SOCK_PACKET)) {
2564 protocol = tswap16(protocol);
2565 }
2566
2567 ret = get_errno(socket(domain, type, protocol));
2568 if (ret >= 0) {
2569 ret = sock_flags_fixup(ret, target_type);
2570 if (type == SOCK_PACKET) {
2571
2572
2573
2574 fd_trans_register(ret, &target_packet_trans);
2575 } else if (domain == PF_NETLINK) {
2576 switch (protocol) {
2577#ifdef CONFIG_RTNETLINK
2578 case NETLINK_ROUTE:
2579 fd_trans_register(ret, &target_netlink_route_trans);
2580 break;
2581#endif
2582 case NETLINK_KOBJECT_UEVENT:
2583
2584 break;
2585 case NETLINK_AUDIT:
2586 fd_trans_register(ret, &target_netlink_audit_trans);
2587 break;
2588 default:
2589 g_assert_not_reached();
2590 }
2591 }
2592 }
2593 return ret;
2594}
2595
2596
2597static abi_long do_bind(int sockfd, abi_ulong target_addr,
2598 socklen_t addrlen)
2599{
2600 void *addr;
2601 abi_long ret;
2602
2603 if ((int)addrlen < 0) {
2604 return -TARGET_EINVAL;
2605 }
2606
2607 addr = alloca(addrlen+1);
2608
2609 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
2610 if (ret)
2611 return ret;
2612
2613 return get_errno(bind(sockfd, addr, addrlen));
2614}
2615
2616
2617static abi_long do_connect(int sockfd, abi_ulong target_addr,
2618 socklen_t addrlen)
2619{
2620 void *addr;
2621 abi_long ret;
2622
2623 if ((int)addrlen < 0) {
2624 return -TARGET_EINVAL;
2625 }
2626
2627 addr = alloca(addrlen+1);
2628
2629 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
2630 if (ret)
2631 return ret;
2632
2633 return get_errno(safe_connect(sockfd, addr, addrlen));
2634}
2635
2636
2637static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2638 int flags, int send)
2639{
2640 abi_long ret, len;
2641 struct msghdr msg;
2642 abi_ulong count;
2643 struct iovec *vec;
2644 abi_ulong target_vec;
2645
2646 if (msgp->msg_name) {
2647 msg.msg_namelen = tswap32(msgp->msg_namelen);
2648 msg.msg_name = alloca(msg.msg_namelen+1);
2649 ret = target_to_host_sockaddr(fd, msg.msg_name,
2650 tswapal(msgp->msg_name),
2651 msg.msg_namelen);
2652 if (ret == -TARGET_EFAULT) {
2653
2654
2655
2656
2657
2658 msg.msg_name = (void *)-1;
2659 } else if (ret) {
2660 goto out2;
2661 }
2662 } else {
2663 msg.msg_name = NULL;
2664 msg.msg_namelen = 0;
2665 }
2666 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
2667 msg.msg_control = alloca(msg.msg_controllen);
2668 memset(msg.msg_control, 0, msg.msg_controllen);
2669
2670 msg.msg_flags = tswap32(msgp->msg_flags);
2671
2672 count = tswapal(msgp->msg_iovlen);
2673 target_vec = tswapal(msgp->msg_iov);
2674
2675 if (count > IOV_MAX) {
2676
2677
2678
2679 ret = -TARGET_EMSGSIZE;
2680 goto out2;
2681 }
2682
2683 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2684 target_vec, count, send);
2685 if (vec == NULL) {
2686 ret = -host_to_target_errno(errno);
2687 goto out2;
2688 }
2689 msg.msg_iovlen = count;
2690 msg.msg_iov = vec;
2691
2692 if (send) {
2693 if (fd_trans_target_to_host_data(fd)) {
2694 void *host_msg;
2695
2696 host_msg = g_malloc(msg.msg_iov->iov_len);
2697 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
2698 ret = fd_trans_target_to_host_data(fd)(host_msg,
2699 msg.msg_iov->iov_len);
2700 if (ret >= 0) {
2701 msg.msg_iov->iov_base = host_msg;
2702 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2703 }
2704 g_free(host_msg);
2705 } else {
2706 ret = target_to_host_cmsg(&msg, msgp);
2707 if (ret == 0) {
2708 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2709 }
2710 }
2711 } else {
2712 ret = get_errno(safe_recvmsg(fd, &msg, flags));
2713 if (!is_error(ret)) {
2714 len = ret;
2715 if (fd_trans_host_to_target_data(fd)) {
2716 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2717 MIN(msg.msg_iov->iov_len, len));
2718 } else {
2719 ret = host_to_target_cmsg(msgp, &msg);
2720 }
2721 if (!is_error(ret)) {
2722 msgp->msg_namelen = tswap32(msg.msg_namelen);
2723 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
2724 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2725 msg.msg_name, msg.msg_namelen);
2726 if (ret) {
2727 goto out;
2728 }
2729 }
2730
2731 ret = len;
2732 }
2733 }
2734 }
2735
2736out:
2737 unlock_iovec(vec, target_vec, count, !send);
2738out2:
2739 return ret;
2740}
2741
2742static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2743 int flags, int send)
2744{
2745 abi_long ret;
2746 struct target_msghdr *msgp;
2747
2748 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2749 msgp,
2750 target_msg,
2751 send ? 1 : 0)) {
2752 return -TARGET_EFAULT;
2753 }
2754 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
2755 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
2756 return ret;
2757}
2758
2759
2760
2761
2762#ifndef MSG_WAITFORONE
2763#define MSG_WAITFORONE 0x10000
2764#endif
2765
2766static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2767 unsigned int vlen, unsigned int flags,
2768 int send)
2769{
2770 struct target_mmsghdr *mmsgp;
2771 abi_long ret = 0;
2772 int i;
2773
2774 if (vlen > UIO_MAXIOV) {
2775 vlen = UIO_MAXIOV;
2776 }
2777
2778 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2779 if (!mmsgp) {
2780 return -TARGET_EFAULT;
2781 }
2782
2783 for (i = 0; i < vlen; i++) {
2784 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2785 if (is_error(ret)) {
2786 break;
2787 }
2788 mmsgp[i].msg_len = tswap32(ret);
2789
2790 if (flags & MSG_WAITFORONE) {
2791 flags |= MSG_DONTWAIT;
2792 }
2793 }
2794
2795 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2796
2797
2798
2799
2800 if (i) {
2801 return i;
2802 }
2803 return ret;
2804}
2805
2806
2807static abi_long do_accept4(int fd, abi_ulong target_addr,
2808 abi_ulong target_addrlen_addr, int flags)
2809{
2810 socklen_t addrlen;
2811 void *addr;
2812 abi_long ret;
2813 int host_flags;
2814
2815 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
2816
2817 if (target_addr == 0) {
2818 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
2819 }
2820
2821
2822 if (get_user_u32(addrlen, target_addrlen_addr))
2823 return -TARGET_EINVAL;
2824
2825 if ((int)addrlen < 0) {
2826 return -TARGET_EINVAL;
2827 }
2828
2829 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2830 return -TARGET_EINVAL;
2831
2832 addr = alloca(addrlen);
2833
2834 ret = get_errno(safe_accept4(fd, addr, &addrlen, host_flags));
2835 if (!is_error(ret)) {
2836 host_to_target_sockaddr(target_addr, addr, addrlen);
2837 if (put_user_u32(addrlen, target_addrlen_addr))
2838 ret = -TARGET_EFAULT;
2839 }
2840 return ret;
2841}
2842
2843
2844static abi_long do_getpeername(int fd, abi_ulong target_addr,
2845 abi_ulong target_addrlen_addr)
2846{
2847 socklen_t addrlen;
2848 void *addr;
2849 abi_long ret;
2850
2851 if (get_user_u32(addrlen, target_addrlen_addr))
2852 return -TARGET_EFAULT;
2853
2854 if ((int)addrlen < 0) {
2855 return -TARGET_EINVAL;
2856 }
2857
2858 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2859 return -TARGET_EFAULT;
2860
2861 addr = alloca(addrlen);
2862
2863 ret = get_errno(getpeername(fd, addr, &addrlen));
2864 if (!is_error(ret)) {
2865 host_to_target_sockaddr(target_addr, addr, addrlen);
2866 if (put_user_u32(addrlen, target_addrlen_addr))
2867 ret = -TARGET_EFAULT;
2868 }
2869 return ret;
2870}
2871
2872
2873static abi_long do_getsockname(int fd, abi_ulong target_addr,
2874 abi_ulong target_addrlen_addr)
2875{
2876 socklen_t addrlen;
2877 void *addr;
2878 abi_long ret;
2879
2880 if (get_user_u32(addrlen, target_addrlen_addr))
2881 return -TARGET_EFAULT;
2882
2883 if ((int)addrlen < 0) {
2884 return -TARGET_EINVAL;
2885 }
2886
2887 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2888 return -TARGET_EFAULT;
2889
2890 addr = alloca(addrlen);
2891
2892 ret = get_errno(getsockname(fd, addr, &addrlen));
2893 if (!is_error(ret)) {
2894 host_to_target_sockaddr(target_addr, addr, addrlen);
2895 if (put_user_u32(addrlen, target_addrlen_addr))
2896 ret = -TARGET_EFAULT;
2897 }
2898 return ret;
2899}
2900
2901
2902static abi_long do_socketpair(int domain, int type, int protocol,
2903 abi_ulong target_tab_addr)
2904{
2905 int tab[2];
2906 abi_long ret;
2907
2908 target_to_host_sock_type(&type);
2909
2910 ret = get_errno(socketpair(domain, type, protocol, tab));
2911 if (!is_error(ret)) {
2912 if (put_user_s32(tab[0], target_tab_addr)
2913 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
2914 ret = -TARGET_EFAULT;
2915 }
2916 return ret;
2917}
2918
2919
2920static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
2921 abi_ulong target_addr, socklen_t addrlen)
2922{
2923 void *addr;
2924 void *host_msg;
2925 void *copy_msg = NULL;
2926 abi_long ret;
2927
2928 if ((int)addrlen < 0) {
2929 return -TARGET_EINVAL;
2930 }
2931
2932 host_msg = lock_user(VERIFY_READ, msg, len, 1);
2933 if (!host_msg)
2934 return -TARGET_EFAULT;
2935 if (fd_trans_target_to_host_data(fd)) {
2936 copy_msg = host_msg;
2937 host_msg = g_malloc(len);
2938 memcpy(host_msg, copy_msg, len);
2939 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
2940 if (ret < 0) {
2941 goto fail;
2942 }
2943 }
2944 if (target_addr) {
2945 addr = alloca(addrlen+1);
2946 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
2947 if (ret) {
2948 goto fail;
2949 }
2950 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
2951 } else {
2952 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
2953 }
2954fail:
2955 if (copy_msg) {
2956 g_free(host_msg);
2957 host_msg = copy_msg;
2958 }
2959 unlock_user(host_msg, msg, 0);
2960 return ret;
2961}
2962
2963
2964static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
2965 abi_ulong target_addr,
2966 abi_ulong target_addrlen)
2967{
2968 socklen_t addrlen;
2969 void *addr;
2970 void *host_msg;
2971 abi_long ret;
2972
2973 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
2974 if (!host_msg)
2975 return -TARGET_EFAULT;
2976 if (target_addr) {
2977 if (get_user_u32(addrlen, target_addrlen)) {
2978 ret = -TARGET_EFAULT;
2979 goto fail;
2980 }
2981 if ((int)addrlen < 0) {
2982 ret = -TARGET_EINVAL;
2983 goto fail;
2984 }
2985 addr = alloca(addrlen);
2986 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
2987 addr, &addrlen));
2988 } else {
2989 addr = NULL;
2990 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
2991 }
2992 if (!is_error(ret)) {
2993 if (fd_trans_host_to_target_data(fd)) {
2994 abi_long trans;
2995 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
2996 if (is_error(trans)) {
2997 ret = trans;
2998 goto fail;
2999 }
3000 }
3001 if (target_addr) {
3002 host_to_target_sockaddr(target_addr, addr, addrlen);
3003 if (put_user_u32(addrlen, target_addrlen)) {
3004 ret = -TARGET_EFAULT;
3005 goto fail;
3006 }
3007 }
3008 unlock_user(host_msg, msg, len);
3009 } else {
3010fail:
3011 unlock_user(host_msg, msg, 0);
3012 }
3013 return ret;
3014}
3015
3016#ifdef TARGET_NR_socketcall
3017
3018static abi_long do_socketcall(int num, abi_ulong vptr)
3019{
3020 static const unsigned nargs[] = {
3021 [TARGET_SYS_SOCKET] = 3,
3022 [TARGET_SYS_BIND] = 3,
3023 [TARGET_SYS_CONNECT] = 3,
3024 [TARGET_SYS_LISTEN] = 2,
3025 [TARGET_SYS_ACCEPT] = 3,
3026 [TARGET_SYS_GETSOCKNAME] = 3,
3027 [TARGET_SYS_GETPEERNAME] = 3,
3028 [TARGET_SYS_SOCKETPAIR] = 4,
3029 [TARGET_SYS_SEND] = 4,
3030 [TARGET_SYS_RECV] = 4,
3031 [TARGET_SYS_SENDTO] = 6,
3032 [TARGET_SYS_RECVFROM] = 6,
3033 [TARGET_SYS_SHUTDOWN] = 2,
3034 [TARGET_SYS_SETSOCKOPT] = 5,
3035 [TARGET_SYS_GETSOCKOPT] = 5,
3036 [TARGET_SYS_SENDMSG] = 3,
3037 [TARGET_SYS_RECVMSG] = 3,
3038 [TARGET_SYS_ACCEPT4] = 4,
3039 [TARGET_SYS_RECVMMSG] = 4,
3040 [TARGET_SYS_SENDMMSG] = 4,
3041 };
3042 abi_long a[6];
3043 unsigned i;
3044
3045
3046
3047 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3048 return -TARGET_EINVAL;
3049 }
3050
3051 if (nargs[num] > ARRAY_SIZE(a)) {
3052 return -TARGET_EINVAL;
3053 }
3054
3055 for (i = 0; i < nargs[num]; ++i) {
3056 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3057 return -TARGET_EFAULT;
3058 }
3059 }
3060
3061 switch (num) {
3062 case TARGET_SYS_SOCKET:
3063 return do_socket(a[0], a[1], a[2]);
3064 case TARGET_SYS_BIND:
3065 return do_bind(a[0], a[1], a[2]);
3066 case TARGET_SYS_CONNECT:
3067 return do_connect(a[0], a[1], a[2]);
3068 case TARGET_SYS_LISTEN:
3069 return get_errno(listen(a[0], a[1]));
3070 case TARGET_SYS_ACCEPT:
3071 return do_accept4(a[0], a[1], a[2], 0);
3072 case TARGET_SYS_GETSOCKNAME:
3073 return do_getsockname(a[0], a[1], a[2]);
3074 case TARGET_SYS_GETPEERNAME:
3075 return do_getpeername(a[0], a[1], a[2]);
3076 case TARGET_SYS_SOCKETPAIR:
3077 return do_socketpair(a[0], a[1], a[2], a[3]);
3078 case TARGET_SYS_SEND:
3079 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
3080 case TARGET_SYS_RECV:
3081 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
3082 case TARGET_SYS_SENDTO:
3083 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
3084 case TARGET_SYS_RECVFROM:
3085 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
3086 case TARGET_SYS_SHUTDOWN:
3087 return get_errno(shutdown(a[0], a[1]));
3088 case TARGET_SYS_SETSOCKOPT:
3089 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3090 case TARGET_SYS_GETSOCKOPT:
3091 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3092 case TARGET_SYS_SENDMSG:
3093 return do_sendrecvmsg(a[0], a[1], a[2], 1);
3094 case TARGET_SYS_RECVMSG:
3095 return do_sendrecvmsg(a[0], a[1], a[2], 0);
3096 case TARGET_SYS_ACCEPT4:
3097 return do_accept4(a[0], a[1], a[2], a[3]);
3098 case TARGET_SYS_RECVMMSG:
3099 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
3100 case TARGET_SYS_SENDMMSG:
3101 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
3102 default:
3103 gemu_log("Unsupported socketcall: %d\n", num);
3104 return -TARGET_EINVAL;
3105 }
3106}
3107#endif
3108
3109#define N_SHM_REGIONS 32
3110
3111static struct shm_region {
3112 abi_ulong start;
3113 abi_ulong size;
3114 bool in_use;
3115} shm_regions[N_SHM_REGIONS];
3116
3117#ifndef TARGET_SEMID64_DS
3118
3119struct target_semid64_ds
3120{
3121 struct target_ipc_perm sem_perm;
3122 abi_ulong sem_otime;
3123#if TARGET_ABI_BITS == 32
3124 abi_ulong __unused1;
3125#endif
3126 abi_ulong sem_ctime;
3127#if TARGET_ABI_BITS == 32
3128 abi_ulong __unused2;
3129#endif
3130 abi_ulong sem_nsems;
3131 abi_ulong __unused3;
3132 abi_ulong __unused4;
3133};
3134#endif
3135
3136static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3137 abi_ulong target_addr)
3138{
3139 struct target_ipc_perm *target_ip;
3140 struct target_semid64_ds *target_sd;
3141
3142 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3143 return -TARGET_EFAULT;
3144 target_ip = &(target_sd->sem_perm);
3145 host_ip->__key = tswap32(target_ip->__key);
3146 host_ip->uid = tswap32(target_ip->uid);
3147 host_ip->gid = tswap32(target_ip->gid);
3148 host_ip->cuid = tswap32(target_ip->cuid);
3149 host_ip->cgid = tswap32(target_ip->cgid);
3150#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3151 host_ip->mode = tswap32(target_ip->mode);
3152#else
3153 host_ip->mode = tswap16(target_ip->mode);
3154#endif
3155#if defined(TARGET_PPC)
3156 host_ip->__seq = tswap32(target_ip->__seq);
3157#else
3158 host_ip->__seq = tswap16(target_ip->__seq);
3159#endif
3160 unlock_user_struct(target_sd, target_addr, 0);
3161 return 0;
3162}
3163
3164static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3165 struct ipc_perm *host_ip)
3166{
3167 struct target_ipc_perm *target_ip;
3168 struct target_semid64_ds *target_sd;
3169
3170 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3171 return -TARGET_EFAULT;
3172 target_ip = &(target_sd->sem_perm);
3173 target_ip->__key = tswap32(host_ip->__key);
3174 target_ip->uid = tswap32(host_ip->uid);
3175 target_ip->gid = tswap32(host_ip->gid);
3176 target_ip->cuid = tswap32(host_ip->cuid);
3177 target_ip->cgid = tswap32(host_ip->cgid);
3178#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3179 target_ip->mode = tswap32(host_ip->mode);
3180#else
3181 target_ip->mode = tswap16(host_ip->mode);
3182#endif
3183#if defined(TARGET_PPC)
3184 target_ip->__seq = tswap32(host_ip->__seq);
3185#else
3186 target_ip->__seq = tswap16(host_ip->__seq);
3187#endif
3188 unlock_user_struct(target_sd, target_addr, 1);
3189 return 0;
3190}
3191
3192static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3193 abi_ulong target_addr)
3194{
3195 struct target_semid64_ds *target_sd;
3196
3197 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3198 return -TARGET_EFAULT;
3199 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3200 return -TARGET_EFAULT;
3201 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3202 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3203 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3204 unlock_user_struct(target_sd, target_addr, 0);
3205 return 0;
3206}
3207
3208static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3209 struct semid_ds *host_sd)
3210{
3211 struct target_semid64_ds *target_sd;
3212
3213 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3214 return -TARGET_EFAULT;
3215 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3216 return -TARGET_EFAULT;
3217 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3218 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3219 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3220 unlock_user_struct(target_sd, target_addr, 1);
3221 return 0;
3222}
3223
3224struct target_seminfo {
3225 int semmap;
3226 int semmni;
3227 int semmns;
3228 int semmnu;
3229 int semmsl;
3230 int semopm;
3231 int semume;
3232 int semusz;
3233 int semvmx;
3234 int semaem;
3235};
3236
3237static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3238 struct seminfo *host_seminfo)
3239{
3240 struct target_seminfo *target_seminfo;
3241 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3242 return -TARGET_EFAULT;
3243 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3244 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3245 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3246 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3247 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3248 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3249 __put_user(host_seminfo->semume, &target_seminfo->semume);
3250 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3251 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3252 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3253 unlock_user_struct(target_seminfo, target_addr, 1);
3254 return 0;
3255}
3256
3257union semun {
3258 int val;
3259 struct semid_ds *buf;
3260 unsigned short *array;
3261 struct seminfo *__buf;
3262};
3263
3264union target_semun {
3265 int val;
3266 abi_ulong buf;
3267 abi_ulong array;
3268 abi_ulong __buf;
3269};
3270
3271static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3272 abi_ulong target_addr)
3273{
3274 int nsems;
3275 unsigned short *array;
3276 union semun semun;
3277 struct semid_ds semid_ds;
3278 int i, ret;
3279
3280 semun.buf = &semid_ds;
3281
3282 ret = semctl(semid, 0, IPC_STAT, semun);
3283 if (ret == -1)
3284 return get_errno(ret);
3285
3286 nsems = semid_ds.sem_nsems;
3287
3288 *host_array = g_try_new(unsigned short, nsems);
3289 if (!*host_array) {
3290 return -TARGET_ENOMEM;
3291 }
3292 array = lock_user(VERIFY_READ, target_addr,
3293 nsems*sizeof(unsigned short), 1);
3294 if (!array) {
3295 g_free(*host_array);
3296 return -TARGET_EFAULT;
3297 }
3298
3299 for(i=0; i<nsems; i++) {
3300 __get_user((*host_array)[i], &array[i]);
3301 }
3302 unlock_user(array, target_addr, 0);
3303
3304 return 0;
3305}
3306
3307static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3308 unsigned short **host_array)
3309{
3310 int nsems;
3311 unsigned short *array;
3312 union semun semun;
3313 struct semid_ds semid_ds;
3314 int i, ret;
3315
3316 semun.buf = &semid_ds;
3317
3318 ret = semctl(semid, 0, IPC_STAT, semun);
3319 if (ret == -1)
3320 return get_errno(ret);
3321
3322 nsems = semid_ds.sem_nsems;
3323
3324 array = lock_user(VERIFY_WRITE, target_addr,
3325 nsems*sizeof(unsigned short), 0);
3326 if (!array)
3327 return -TARGET_EFAULT;
3328
3329 for(i=0; i<nsems; i++) {
3330 __put_user((*host_array)[i], &array[i]);
3331 }
3332 g_free(*host_array);
3333 unlock_user(array, target_addr, 1);
3334
3335 return 0;
3336}
3337
3338static inline abi_long do_semctl(int semid, int semnum, int cmd,
3339 abi_ulong target_arg)
3340{
3341 union target_semun target_su = { .buf = target_arg };
3342 union semun arg;
3343 struct semid_ds dsarg;
3344 unsigned short *array = NULL;
3345 struct seminfo seminfo;
3346 abi_long ret = -TARGET_EINVAL;
3347 abi_long err;
3348 cmd &= 0xff;
3349
3350 switch( cmd ) {
3351 case GETVAL:
3352 case SETVAL:
3353
3354
3355
3356
3357
3358 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3359 target_su.buf = tswapal(target_su.buf);
3360 arg.val = tswap32(target_su.val);
3361 } else {
3362 arg.val = target_su.val;
3363 }
3364 ret = get_errno(semctl(semid, semnum, cmd, arg));
3365 break;
3366 case GETALL:
3367 case SETALL:
3368 err = target_to_host_semarray(semid, &array, target_su.array);
3369 if (err)
3370 return err;
3371 arg.array = array;
3372 ret = get_errno(semctl(semid, semnum, cmd, arg));
3373 err = host_to_target_semarray(semid, target_su.array, &array);
3374 if (err)
3375 return err;
3376 break;
3377 case IPC_STAT:
3378 case IPC_SET:
3379 case SEM_STAT:
3380 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3381 if (err)
3382 return err;
3383 arg.buf = &dsarg;
3384 ret = get_errno(semctl(semid, semnum, cmd, arg));
3385 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3386 if (err)
3387 return err;
3388 break;
3389 case IPC_INFO:
3390 case SEM_INFO:
3391 arg.__buf = &seminfo;
3392 ret = get_errno(semctl(semid, semnum, cmd, arg));
3393 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3394 if (err)
3395 return err;
3396 break;
3397 case IPC_RMID:
3398 case GETPID:
3399 case GETNCNT:
3400 case GETZCNT:
3401 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3402 break;
3403 }
3404
3405 return ret;
3406}
3407
3408struct target_sembuf {
3409 unsigned short sem_num;
3410 short sem_op;
3411 short sem_flg;
3412};
3413
3414static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3415 abi_ulong target_addr,
3416 unsigned nsops)
3417{
3418 struct target_sembuf *target_sembuf;
3419 int i;
3420
3421 target_sembuf = lock_user(VERIFY_READ, target_addr,
3422 nsops*sizeof(struct target_sembuf), 1);
3423 if (!target_sembuf)
3424 return -TARGET_EFAULT;
3425
3426 for(i=0; i<nsops; i++) {
3427 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3428 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3429 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3430 }
3431
3432 unlock_user(target_sembuf, target_addr, 0);
3433
3434 return 0;
3435}
3436
3437static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3438{
3439 struct sembuf sops[nsops];
3440
3441 if (target_to_host_sembuf(sops, ptr, nsops))
3442 return -TARGET_EFAULT;
3443
3444 return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
3445}
3446
3447struct target_msqid_ds
3448{
3449 struct target_ipc_perm msg_perm;
3450 abi_ulong msg_stime;
3451#if TARGET_ABI_BITS == 32
3452 abi_ulong __unused1;
3453#endif
3454 abi_ulong msg_rtime;
3455#if TARGET_ABI_BITS == 32
3456 abi_ulong __unused2;
3457#endif
3458 abi_ulong msg_ctime;
3459#if TARGET_ABI_BITS == 32
3460 abi_ulong __unused3;
3461#endif
3462 abi_ulong __msg_cbytes;
3463 abi_ulong msg_qnum;
3464 abi_ulong msg_qbytes;
3465 abi_ulong msg_lspid;
3466 abi_ulong msg_lrpid;
3467 abi_ulong __unused4;
3468 abi_ulong __unused5;
3469};
3470
3471static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3472 abi_ulong target_addr)
3473{
3474 struct target_msqid_ds *target_md;
3475
3476 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3477 return -TARGET_EFAULT;
3478 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3479 return -TARGET_EFAULT;
3480 host_md->msg_stime = tswapal(target_md->msg_stime);
3481 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3482 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3483 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3484 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3485 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3486 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3487 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
3488 unlock_user_struct(target_md, target_addr, 0);
3489 return 0;
3490}
3491
3492static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3493 struct msqid_ds *host_md)
3494{
3495 struct target_msqid_ds *target_md;
3496
3497 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3498 return -TARGET_EFAULT;
3499 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3500 return -TARGET_EFAULT;
3501 target_md->msg_stime = tswapal(host_md->msg_stime);
3502 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3503 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3504 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3505 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3506 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3507 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3508 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
3509 unlock_user_struct(target_md, target_addr, 1);
3510 return 0;
3511}
3512
3513struct target_msginfo {
3514 int msgpool;
3515 int msgmap;
3516 int msgmax;
3517 int msgmnb;
3518 int msgmni;
3519 int msgssz;
3520 int msgtql;
3521 unsigned short int msgseg;
3522};
3523
3524static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3525 struct msginfo *host_msginfo)
3526{
3527 struct target_msginfo *target_msginfo;
3528 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3529 return -TARGET_EFAULT;
3530 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3531 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3532 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3533 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3534 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3535 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3536 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3537 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3538 unlock_user_struct(target_msginfo, target_addr, 1);
3539 return 0;
3540}
3541
3542static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
3543{
3544 struct msqid_ds dsarg;
3545 struct msginfo msginfo;
3546 abi_long ret = -TARGET_EINVAL;
3547
3548 cmd &= 0xff;
3549
3550 switch (cmd) {
3551 case IPC_STAT:
3552 case IPC_SET:
3553 case MSG_STAT:
3554 if (target_to_host_msqid_ds(&dsarg,ptr))
3555 return -TARGET_EFAULT;
3556 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3557 if (host_to_target_msqid_ds(ptr,&dsarg))
3558 return -TARGET_EFAULT;
3559 break;
3560 case IPC_RMID:
3561 ret = get_errno(msgctl(msgid, cmd, NULL));
3562 break;
3563 case IPC_INFO:
3564 case MSG_INFO:
3565 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3566 if (host_to_target_msginfo(ptr, &msginfo))
3567 return -TARGET_EFAULT;
3568 break;
3569 }
3570
3571 return ret;
3572}
3573
3574struct target_msgbuf {
3575 abi_long mtype;
3576 char mtext[1];
3577};
3578
3579static inline abi_long do_msgsnd(int msqid, abi_long msgp,
3580 ssize_t msgsz, int msgflg)
3581{
3582 struct target_msgbuf *target_mb;
3583 struct msgbuf *host_mb;
3584 abi_long ret = 0;
3585
3586 if (msgsz < 0) {
3587 return -TARGET_EINVAL;
3588 }
3589
3590 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3591 return -TARGET_EFAULT;
3592 host_mb = g_try_malloc(msgsz + sizeof(long));
3593 if (!host_mb) {
3594 unlock_user_struct(target_mb, msgp, 0);
3595 return -TARGET_ENOMEM;
3596 }
3597 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
3598 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
3599 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
3600 g_free(host_mb);
3601 unlock_user_struct(target_mb, msgp, 0);
3602
3603 return ret;
3604}
3605
3606static inline abi_long do_msgrcv(int msqid, abi_long msgp,
3607 ssize_t msgsz, abi_long msgtyp,
3608 int msgflg)
3609{
3610 struct target_msgbuf *target_mb;
3611 char *target_mtext;
3612 struct msgbuf *host_mb;
3613 abi_long ret = 0;
3614
3615 if (msgsz < 0) {
3616 return -TARGET_EINVAL;
3617 }
3618
3619 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3620 return -TARGET_EFAULT;
3621
3622 host_mb = g_try_malloc(msgsz + sizeof(long));
3623 if (!host_mb) {
3624 ret = -TARGET_ENOMEM;
3625 goto end;
3626 }
3627 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
3628
3629 if (ret > 0) {
3630 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3631 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3632 if (!target_mtext) {
3633 ret = -TARGET_EFAULT;
3634 goto end;
3635 }
3636 memcpy(target_mb->mtext, host_mb->mtext, ret);
3637 unlock_user(target_mtext, target_mtext_addr, ret);
3638 }
3639
3640 target_mb->mtype = tswapal(host_mb->mtype);
3641
3642end:
3643 if (target_mb)
3644 unlock_user_struct(target_mb, msgp, 1);
3645 g_free(host_mb);
3646 return ret;
3647}
3648
3649static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3650 abi_ulong target_addr)
3651{
3652 struct target_shmid_ds *target_sd;
3653
3654 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3655 return -TARGET_EFAULT;
3656 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3657 return -TARGET_EFAULT;
3658 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3659 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3660 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3661 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3662 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3663 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3664 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3665 unlock_user_struct(target_sd, target_addr, 0);
3666 return 0;
3667}
3668
3669static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3670 struct shmid_ds *host_sd)
3671{
3672 struct target_shmid_ds *target_sd;
3673
3674 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3675 return -TARGET_EFAULT;
3676 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3677 return -TARGET_EFAULT;
3678 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3679 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3680 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3681 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3682 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3683 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3684 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3685 unlock_user_struct(target_sd, target_addr, 1);
3686 return 0;
3687}
3688
3689struct target_shminfo {
3690 abi_ulong shmmax;
3691 abi_ulong shmmin;
3692 abi_ulong shmmni;
3693 abi_ulong shmseg;
3694 abi_ulong shmall;
3695};
3696
3697static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3698 struct shminfo *host_shminfo)
3699{
3700 struct target_shminfo *target_shminfo;
3701 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3702 return -TARGET_EFAULT;
3703 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3704 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3705 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3706 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3707 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3708 unlock_user_struct(target_shminfo, target_addr, 1);
3709 return 0;
3710}
3711
3712struct target_shm_info {
3713 int used_ids;
3714 abi_ulong shm_tot;
3715 abi_ulong shm_rss;
3716 abi_ulong shm_swp;
3717 abi_ulong swap_attempts;
3718 abi_ulong swap_successes;
3719};
3720
3721static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3722 struct shm_info *host_shm_info)
3723{
3724 struct target_shm_info *target_shm_info;
3725 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3726 return -TARGET_EFAULT;
3727 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3728 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3729 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3730 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3731 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3732 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3733 unlock_user_struct(target_shm_info, target_addr, 1);
3734 return 0;
3735}
3736
3737static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3738{
3739 struct shmid_ds dsarg;
3740 struct shminfo shminfo;
3741 struct shm_info shm_info;
3742 abi_long ret = -TARGET_EINVAL;
3743
3744 cmd &= 0xff;
3745
3746 switch(cmd) {
3747 case IPC_STAT:
3748 case IPC_SET:
3749 case SHM_STAT:
3750 if (target_to_host_shmid_ds(&dsarg, buf))
3751 return -TARGET_EFAULT;
3752 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3753 if (host_to_target_shmid_ds(buf, &dsarg))
3754 return -TARGET_EFAULT;
3755 break;
3756 case IPC_INFO:
3757 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3758 if (host_to_target_shminfo(buf, &shminfo))
3759 return -TARGET_EFAULT;
3760 break;
3761 case SHM_INFO:
3762 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3763 if (host_to_target_shm_info(buf, &shm_info))
3764 return -TARGET_EFAULT;
3765 break;
3766 case IPC_RMID:
3767 case SHM_LOCK:
3768 case SHM_UNLOCK:
3769 ret = get_errno(shmctl(shmid, cmd, NULL));
3770 break;
3771 }
3772
3773 return ret;
3774}
3775
3776#ifndef TARGET_FORCE_SHMLBA
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
3791{
3792 return TARGET_PAGE_SIZE;
3793}
3794#endif
3795
3796static inline abi_ulong do_shmat(CPUArchState *cpu_env,
3797 int shmid, abi_ulong shmaddr, int shmflg)
3798{
3799 abi_long raddr;
3800 void *host_raddr;
3801 struct shmid_ds shm_info;
3802 int i,ret;
3803 abi_ulong shmlba;
3804
3805
3806 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
3807 if (is_error(ret)) {
3808
3809 return ret;
3810 }
3811
3812 shmlba = target_shmlba(cpu_env);
3813
3814 if (shmaddr & (shmlba - 1)) {
3815 if (shmflg & SHM_RND) {
3816 shmaddr &= ~(shmlba - 1);
3817 } else {
3818 return -TARGET_EINVAL;
3819 }
3820 }
3821 if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
3822 return -TARGET_EINVAL;
3823 }
3824
3825 mmap_lock();
3826
3827 if (shmaddr)
3828 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
3829 else {
3830 abi_ulong mmap_start;
3831
3832 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
3833
3834 if (mmap_start == -1) {
3835 errno = ENOMEM;
3836 host_raddr = (void *)-1;
3837 } else
3838 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
3839 }
3840
3841 if (host_raddr == (void *)-1) {
3842 mmap_unlock();
3843 return get_errno((long)host_raddr);
3844 }
3845 raddr=h2g((unsigned long)host_raddr);
3846
3847 page_set_flags(raddr, raddr + shm_info.shm_segsz,
3848 PAGE_VALID | PAGE_READ |
3849 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
3850
3851 for (i = 0; i < N_SHM_REGIONS; i++) {
3852 if (!shm_regions[i].in_use) {
3853 shm_regions[i].in_use = true;
3854 shm_regions[i].start = raddr;
3855 shm_regions[i].size = shm_info.shm_segsz;
3856 break;
3857 }
3858 }
3859
3860 mmap_unlock();
3861 return raddr;
3862
3863}
3864
3865static inline abi_long do_shmdt(abi_ulong shmaddr)
3866{
3867 int i;
3868 abi_long rv;
3869
3870 mmap_lock();
3871
3872 for (i = 0; i < N_SHM_REGIONS; ++i) {
3873 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
3874 shm_regions[i].in_use = false;
3875 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
3876 break;
3877 }
3878 }
3879 rv = get_errno(shmdt(g2h(shmaddr)));
3880
3881 mmap_unlock();
3882
3883 return rv;
3884}
3885
3886#ifdef TARGET_NR_ipc
3887
3888
3889static abi_long do_ipc(CPUArchState *cpu_env,
3890 unsigned int call, abi_long first,
3891 abi_long second, abi_long third,
3892 abi_long ptr, abi_long fifth)
3893{
3894 int version;
3895 abi_long ret = 0;
3896
3897 version = call >> 16;
3898 call &= 0xffff;
3899
3900 switch (call) {
3901 case IPCOP_semop:
3902 ret = do_semop(first, ptr, second);
3903 break;
3904
3905 case IPCOP_semget:
3906 ret = get_errno(semget(first, second, third));
3907 break;
3908
3909 case IPCOP_semctl: {
3910
3911
3912 abi_ulong atptr;
3913 get_user_ual(atptr, ptr);
3914 ret = do_semctl(first, second, third, atptr);
3915 break;
3916 }
3917
3918 case IPCOP_msgget:
3919 ret = get_errno(msgget(first, second));
3920 break;
3921
3922 case IPCOP_msgsnd:
3923 ret = do_msgsnd(first, ptr, second, third);
3924 break;
3925
3926 case IPCOP_msgctl:
3927 ret = do_msgctl(first, second, ptr);
3928 break;
3929
3930 case IPCOP_msgrcv:
3931 switch (version) {
3932 case 0:
3933 {
3934 struct target_ipc_kludge {
3935 abi_long msgp;
3936 abi_long msgtyp;
3937 } *tmp;
3938
3939 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3940 ret = -TARGET_EFAULT;
3941 break;
3942 }
3943
3944 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
3945
3946 unlock_user_struct(tmp, ptr, 0);
3947 break;
3948 }
3949 default:
3950 ret = do_msgrcv(first, ptr, second, fifth, third);
3951 }
3952 break;
3953
3954 case IPCOP_shmat:
3955 switch (version) {
3956 default:
3957 {
3958 abi_ulong raddr;
3959 raddr = do_shmat(cpu_env, first, ptr, second);
3960 if (is_error(raddr))
3961 return get_errno(raddr);
3962 if (put_user_ual(raddr, third))
3963 return -TARGET_EFAULT;
3964 break;
3965 }
3966 case 1:
3967 ret = -TARGET_EINVAL;
3968 break;
3969 }
3970 break;
3971 case IPCOP_shmdt:
3972 ret = do_shmdt(ptr);
3973 break;
3974
3975 case IPCOP_shmget:
3976
3977 ret = get_errno(shmget(first, second, third));
3978 break;
3979
3980
3981 case IPCOP_shmctl:
3982 ret = do_shmctl(first, second, ptr);
3983 break;
3984 default:
3985 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
3986 ret = -TARGET_ENOSYS;
3987 break;
3988 }
3989 return ret;
3990}
3991#endif
3992
3993
3994
3995#define STRUCT(name, ...) STRUCT_ ## name,
3996#define STRUCT_SPECIAL(name) STRUCT_ ## name,
3997enum {
3998#include "syscall_types.h"
3999STRUCT_MAX
4000};
4001#undef STRUCT
4002#undef STRUCT_SPECIAL
4003
4004#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
4005#define STRUCT_SPECIAL(name)
4006#include "syscall_types.h"
4007#undef STRUCT
4008#undef STRUCT_SPECIAL
4009
4010typedef struct IOCTLEntry IOCTLEntry;
4011
4012typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
4013 int fd, int cmd, abi_long arg);
4014
4015struct IOCTLEntry {
4016 int target_cmd;
4017 unsigned int host_cmd;
4018 const char *name;
4019 int access;
4020 do_ioctl_fn *do_ioctl;
4021 const argtype arg_type[5];
4022};
4023
4024#define IOC_R 0x0001
4025#define IOC_W 0x0002
4026#define IOC_RW (IOC_R | IOC_W)
4027
4028#define MAX_STRUCT_SIZE 4096
4029
4030#ifdef CONFIG_FIEMAP
4031
4032
4033
4034
4035#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4036 / sizeof(struct fiemap_extent))
4037
4038static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
4039 int fd, int cmd, abi_long arg)
4040{
4041
4042
4043
4044
4045
4046 int target_size_in, target_size_out;
4047 struct fiemap *fm;
4048 const argtype *arg_type = ie->arg_type;
4049 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4050 void *argptr, *p;
4051 abi_long ret;
4052 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4053 uint32_t outbufsz;
4054 int free_fm = 0;
4055
4056 assert(arg_type[0] == TYPE_PTR);
4057 assert(ie->access == IOC_RW);
4058 arg_type++;
4059 target_size_in = thunk_type_size(arg_type, 0);
4060 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4061 if (!argptr) {
4062 return -TARGET_EFAULT;
4063 }
4064 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4065 unlock_user(argptr, arg, 0);
4066 fm = (struct fiemap *)buf_temp;
4067 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4068 return -TARGET_EINVAL;
4069 }
4070
4071 outbufsz = sizeof (*fm) +
4072 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4073
4074 if (outbufsz > MAX_STRUCT_SIZE) {
4075
4076
4077
4078 fm = g_try_malloc(outbufsz);
4079 if (!fm) {
4080 return -TARGET_ENOMEM;
4081 }
4082 memcpy(fm, buf_temp, sizeof(struct fiemap));
4083 free_fm = 1;
4084 }
4085 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
4086 if (!is_error(ret)) {
4087 target_size_out = target_size_in;
4088
4089
4090
4091 if (fm->fm_extent_count != 0) {
4092 target_size_out += fm->fm_mapped_extents * extent_size;
4093 }
4094 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4095 if (!argptr) {
4096 ret = -TARGET_EFAULT;
4097 } else {
4098
4099 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4100 if (fm->fm_extent_count != 0) {
4101 p = argptr + target_size_in;
4102
4103 for (i = 0; i < fm->fm_mapped_extents; i++) {
4104 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4105 THUNK_TARGET);
4106 p += extent_size;
4107 }
4108 }
4109 unlock_user(argptr, arg, target_size_out);
4110 }
4111 }
4112 if (free_fm) {
4113 g_free(fm);
4114 }
4115 return ret;
4116}
4117#endif
4118
4119static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
4120 int fd, int cmd, abi_long arg)
4121{
4122 const argtype *arg_type = ie->arg_type;
4123 int target_size;
4124 void *argptr;
4125 int ret;
4126 struct ifconf *host_ifconf;
4127 uint32_t outbufsz;
4128 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4129 int target_ifreq_size;
4130 int nb_ifreq;
4131 int free_buf = 0;
4132 int i;
4133 int target_ifc_len;
4134 abi_long target_ifc_buf;
4135 int host_ifc_len;
4136 char *host_ifc_buf;
4137
4138 assert(arg_type[0] == TYPE_PTR);
4139 assert(ie->access == IOC_RW);
4140
4141 arg_type++;
4142 target_size = thunk_type_size(arg_type, 0);
4143
4144 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4145 if (!argptr)
4146 return -TARGET_EFAULT;
4147 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4148 unlock_user(argptr, arg, 0);
4149
4150 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
4151 target_ifc_len = host_ifconf->ifc_len;
4152 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
4153
4154 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
4155 nb_ifreq = target_ifc_len / target_ifreq_size;
4156 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4157
4158 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4159 if (outbufsz > MAX_STRUCT_SIZE) {
4160
4161
4162
4163 host_ifconf = malloc(outbufsz);
4164 if (!host_ifconf) {
4165 return -TARGET_ENOMEM;
4166 }
4167 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4168 free_buf = 1;
4169 }
4170 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
4171
4172 host_ifconf->ifc_len = host_ifc_len;
4173 host_ifconf->ifc_buf = host_ifc_buf;
4174
4175 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
4176 if (!is_error(ret)) {
4177
4178
4179 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4180 target_ifc_len = nb_ifreq * target_ifreq_size;
4181 host_ifconf->ifc_len = target_ifc_len;
4182
4183
4184
4185 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4186
4187
4188
4189 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4190 if (!argptr)
4191 return -TARGET_EFAULT;
4192 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4193 unlock_user(argptr, arg, target_size);
4194
4195
4196
4197 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4198 for (i = 0; i < nb_ifreq ; i++) {
4199 thunk_convert(argptr + i * target_ifreq_size,
4200 host_ifc_buf + i * sizeof(struct ifreq),
4201 ifreq_arg_type, THUNK_TARGET);
4202 }
4203 unlock_user(argptr, target_ifc_buf, target_ifc_len);
4204 }
4205
4206 if (free_buf) {
4207 free(host_ifconf);
4208 }
4209
4210 return ret;
4211}
4212
4213#if defined(CONFIG_USBFS)
4214#if HOST_LONG_BITS > 64
4215#error USBDEVFS thunks do not support >64 bit hosts yet.
4216#endif
4217struct live_urb {
4218 uint64_t target_urb_adr;
4219 uint64_t target_buf_adr;
4220 char *target_buf_ptr;
4221 struct usbdevfs_urb host_urb;
4222};
4223
4224static GHashTable *usbdevfs_urb_hashtable(void)
4225{
4226 static GHashTable *urb_hashtable;
4227
4228 if (!urb_hashtable) {
4229 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
4230 }
4231 return urb_hashtable;
4232}
4233
4234static void urb_hashtable_insert(struct live_urb *urb)
4235{
4236 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4237 g_hash_table_insert(urb_hashtable, urb, urb);
4238}
4239
4240static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
4241{
4242 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4243 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
4244}
4245
4246static void urb_hashtable_remove(struct live_urb *urb)
4247{
4248 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4249 g_hash_table_remove(urb_hashtable, urb);
4250}
4251
4252static abi_long
4253do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
4254 int fd, int cmd, abi_long arg)
4255{
4256 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
4257 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
4258 struct live_urb *lurb;
4259 void *argptr;
4260 uint64_t hurb;
4261 int target_size;
4262 uintptr_t target_urb_adr;
4263 abi_long ret;
4264
4265 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
4266
4267 memset(buf_temp, 0, sizeof(uint64_t));
4268 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4269 if (is_error(ret)) {
4270 return ret;
4271 }
4272
4273 memcpy(&hurb, buf_temp, sizeof(uint64_t));
4274 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
4275 if (!lurb->target_urb_adr) {
4276 return -TARGET_EFAULT;
4277 }
4278 urb_hashtable_remove(lurb);
4279 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
4280 lurb->host_urb.buffer_length);
4281 lurb->target_buf_ptr = NULL;
4282
4283
4284 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
4285
4286
4287 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
4288 if (!argptr) {
4289 g_free(lurb);
4290 return -TARGET_EFAULT;
4291 }
4292 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
4293 unlock_user(argptr, lurb->target_urb_adr, target_size);
4294
4295 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
4296
4297 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4298 if (!argptr) {
4299 g_free(lurb);
4300 return -TARGET_EFAULT;
4301 }
4302
4303
4304 target_urb_adr = lurb->target_urb_adr;
4305 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
4306 unlock_user(argptr, arg, target_size);
4307
4308 g_free(lurb);
4309 return ret;
4310}
4311
4312static abi_long
4313do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
4314 uint8_t *buf_temp __attribute__((unused)),
4315 int fd, int cmd, abi_long arg)
4316{
4317 struct live_urb *lurb;
4318
4319
4320 lurb = urb_hashtable_lookup(arg);
4321 if (!lurb) {
4322 return -TARGET_EFAULT;
4323 }
4324 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4325}
4326
4327static abi_long
4328do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
4329 int fd, int cmd, abi_long arg)
4330{
4331 const argtype *arg_type = ie->arg_type;
4332 int target_size;
4333 abi_long ret;
4334 void *argptr;
4335 int rw_dir;
4336 struct live_urb *lurb;
4337
4338
4339
4340
4341
4342
4343
4344 arg_type++;
4345 target_size = thunk_type_size(arg_type, THUNK_TARGET);
4346
4347
4348 lurb = g_try_malloc0(sizeof(struct live_urb));
4349 if (!lurb) {
4350 return -TARGET_ENOMEM;
4351 }
4352
4353 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4354 if (!argptr) {
4355 g_free(lurb);
4356 return -TARGET_EFAULT;
4357 }
4358 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
4359 unlock_user(argptr, arg, 0);
4360
4361 lurb->target_urb_adr = arg;
4362 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
4363
4364
4365
4366 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
4367 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
4368 lurb->host_urb.buffer_length, 1);
4369 if (lurb->target_buf_ptr == NULL) {
4370 g_free(lurb);
4371 return -TARGET_EFAULT;
4372 }
4373
4374
4375 lurb->host_urb.buffer = lurb->target_buf_ptr;
4376
4377 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4378 if (is_error(ret)) {
4379 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
4380 g_free(lurb);
4381 } else {
4382 urb_hashtable_insert(lurb);
4383 }
4384
4385 return ret;
4386}
4387#endif
4388
4389static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
4390 int cmd, abi_long arg)
4391{
4392 void *argptr;
4393 struct dm_ioctl *host_dm;
4394 abi_long guest_data;
4395 uint32_t guest_data_size;
4396 int target_size;
4397 const argtype *arg_type = ie->arg_type;
4398 abi_long ret;
4399 void *big_buf = NULL;
4400 char *host_data;
4401
4402 arg_type++;
4403 target_size = thunk_type_size(arg_type, 0);
4404 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4405 if (!argptr) {
4406 ret = -TARGET_EFAULT;
4407 goto out;
4408 }
4409 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4410 unlock_user(argptr, arg, 0);
4411
4412
4413 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4414 memcpy(big_buf, buf_temp, target_size);
4415 buf_temp = big_buf;
4416 host_dm = big_buf;
4417
4418 guest_data = arg + host_dm->data_start;
4419 if ((guest_data - arg) < 0) {
4420 ret = -TARGET_EINVAL;
4421 goto out;
4422 }
4423 guest_data_size = host_dm->data_size - host_dm->data_start;
4424 host_data = (char*)host_dm + host_dm->data_start;
4425
4426 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
4427 if (!argptr) {
4428 ret = -TARGET_EFAULT;
4429 goto out;
4430 }
4431
4432 switch (ie->host_cmd) {
4433 case DM_REMOVE_ALL:
4434 case DM_LIST_DEVICES:
4435 case DM_DEV_CREATE:
4436 case DM_DEV_REMOVE:
4437 case DM_DEV_SUSPEND:
4438 case DM_DEV_STATUS:
4439 case DM_DEV_WAIT:
4440 case DM_TABLE_STATUS:
4441 case DM_TABLE_CLEAR:
4442 case DM_TABLE_DEPS:
4443 case DM_LIST_VERSIONS:
4444
4445 break;
4446 case DM_DEV_RENAME:
4447 case DM_DEV_SET_GEOMETRY:
4448
4449 memcpy(host_data, argptr, guest_data_size);
4450 break;
4451 case DM_TARGET_MSG:
4452 memcpy(host_data, argptr, guest_data_size);
4453 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4454 break;
4455 case DM_TABLE_LOAD:
4456 {
4457 void *gspec = argptr;
4458 void *cur_data = host_data;
4459 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4460 int spec_size = thunk_type_size(arg_type, 0);
4461 int i;
4462
4463 for (i = 0; i < host_dm->target_count; i++) {
4464 struct dm_target_spec *spec = cur_data;
4465 uint32_t next;
4466 int slen;
4467
4468 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4469 slen = strlen((char*)gspec + spec_size) + 1;
4470 next = spec->next;
4471 spec->next = sizeof(*spec) + slen;
4472 strcpy((char*)&spec[1], gspec + spec_size);
4473 gspec += next;
4474 cur_data += spec->next;
4475 }
4476 break;
4477 }
4478 default:
4479 ret = -TARGET_EINVAL;
4480 unlock_user(argptr, guest_data, 0);
4481 goto out;
4482 }
4483 unlock_user(argptr, guest_data, 0);
4484
4485 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4486 if (!is_error(ret)) {
4487 guest_data = arg + host_dm->data_start;
4488 guest_data_size = host_dm->data_size - host_dm->data_start;
4489 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4490 switch (ie->host_cmd) {
4491 case DM_REMOVE_ALL:
4492 case DM_DEV_CREATE:
4493 case DM_DEV_REMOVE:
4494 case DM_DEV_RENAME:
4495 case DM_DEV_SUSPEND:
4496 case DM_DEV_STATUS:
4497 case DM_TABLE_LOAD:
4498 case DM_TABLE_CLEAR:
4499 case DM_TARGET_MSG:
4500 case DM_DEV_SET_GEOMETRY:
4501
4502 break;
4503 case DM_LIST_DEVICES:
4504 {
4505 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4506 uint32_t remaining_data = guest_data_size;
4507 void *cur_data = argptr;
4508 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4509 int nl_size = 12;
4510
4511 while (1) {
4512 uint32_t next = nl->next;
4513 if (next) {
4514 nl->next = nl_size + (strlen(nl->name) + 1);
4515 }
4516 if (remaining_data < nl->next) {
4517 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4518 break;
4519 }
4520 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4521 strcpy(cur_data + nl_size, nl->name);
4522 cur_data += nl->next;
4523 remaining_data -= nl->next;
4524 if (!next) {
4525 break;
4526 }
4527 nl = (void*)nl + next;
4528 }
4529 break;
4530 }
4531 case DM_DEV_WAIT:
4532 case DM_TABLE_STATUS:
4533 {
4534 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4535 void *cur_data = argptr;
4536 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4537 int spec_size = thunk_type_size(arg_type, 0);
4538 int i;
4539
4540 for (i = 0; i < host_dm->target_count; i++) {
4541 uint32_t next = spec->next;
4542 int slen = strlen((char*)&spec[1]) + 1;
4543 spec->next = (cur_data - argptr) + spec_size + slen;
4544 if (guest_data_size < spec->next) {
4545 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4546 break;
4547 }
4548 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4549 strcpy(cur_data + spec_size, (char*)&spec[1]);
4550 cur_data = argptr + spec->next;
4551 spec = (void*)host_dm + host_dm->data_start + next;
4552 }
4553 break;
4554 }
4555 case DM_TABLE_DEPS:
4556 {
4557 void *hdata = (void*)host_dm + host_dm->data_start;
4558 int count = *(uint32_t*)hdata;
4559 uint64_t *hdev = hdata + 8;
4560 uint64_t *gdev = argptr + 8;
4561 int i;
4562
4563 *(uint32_t*)argptr = tswap32(count);
4564 for (i = 0; i < count; i++) {
4565 *gdev = tswap64(*hdev);
4566 gdev++;
4567 hdev++;
4568 }
4569 break;
4570 }
4571 case DM_LIST_VERSIONS:
4572 {
4573 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4574 uint32_t remaining_data = guest_data_size;
4575 void *cur_data = argptr;
4576 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4577 int vers_size = thunk_type_size(arg_type, 0);
4578
4579 while (1) {
4580 uint32_t next = vers->next;
4581 if (next) {
4582 vers->next = vers_size + (strlen(vers->name) + 1);
4583 }
4584 if (remaining_data < vers->next) {
4585 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4586 break;
4587 }
4588 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4589 strcpy(cur_data + vers_size, vers->name);
4590 cur_data += vers->next;
4591 remaining_data -= vers->next;
4592 if (!next) {
4593 break;
4594 }
4595 vers = (void*)vers + next;
4596 }
4597 break;
4598 }
4599 default:
4600 unlock_user(argptr, guest_data, 0);
4601 ret = -TARGET_EINVAL;
4602 goto out;
4603 }
4604 unlock_user(argptr, guest_data, guest_data_size);
4605
4606 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4607 if (!argptr) {
4608 ret = -TARGET_EFAULT;
4609 goto out;
4610 }
4611 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4612 unlock_user(argptr, arg, target_size);
4613 }
4614out:
4615 g_free(big_buf);
4616 return ret;
4617}
4618
4619static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
4620 int cmd, abi_long arg)
4621{
4622 void *argptr;
4623 int target_size;
4624 const argtype *arg_type = ie->arg_type;
4625 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4626 abi_long ret;
4627
4628 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4629 struct blkpg_partition host_part;
4630
4631
4632 arg_type++;
4633 target_size = thunk_type_size(arg_type, 0);
4634 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4635 if (!argptr) {
4636 ret = -TARGET_EFAULT;
4637 goto out;
4638 }
4639 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4640 unlock_user(argptr, arg, 0);
4641
4642 switch (host_blkpg->op) {
4643 case BLKPG_ADD_PARTITION:
4644 case BLKPG_DEL_PARTITION:
4645
4646 break;
4647 default:
4648
4649 ret = -TARGET_EINVAL;
4650 goto out;
4651 }
4652
4653
4654 arg = (abi_long)(uintptr_t)host_blkpg->data;
4655 target_size = thunk_type_size(part_arg_type, 0);
4656 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4657 if (!argptr) {
4658 ret = -TARGET_EFAULT;
4659 goto out;
4660 }
4661 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4662 unlock_user(argptr, arg, 0);
4663
4664
4665 host_blkpg->data = &host_part;
4666 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
4667
4668out:
4669 return ret;
4670}
4671
4672static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
4673 int fd, int cmd, abi_long arg)
4674{
4675 const argtype *arg_type = ie->arg_type;
4676 const StructEntry *se;
4677 const argtype *field_types;
4678 const int *dst_offsets, *src_offsets;
4679 int target_size;
4680 void *argptr;
4681 abi_ulong *target_rt_dev_ptr;
4682 unsigned long *host_rt_dev_ptr;
4683 abi_long ret;
4684 int i;
4685
4686 assert(ie->access == IOC_W);
4687 assert(*arg_type == TYPE_PTR);
4688 arg_type++;
4689 assert(*arg_type == TYPE_STRUCT);
4690 target_size = thunk_type_size(arg_type, 0);
4691 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4692 if (!argptr) {
4693 return -TARGET_EFAULT;
4694 }
4695 arg_type++;
4696 assert(*arg_type == (int)STRUCT_rtentry);
4697 se = struct_entries + *arg_type++;
4698 assert(se->convert[0] == NULL);
4699
4700 field_types = se->field_types;
4701 dst_offsets = se->field_offsets[THUNK_HOST];
4702 src_offsets = se->field_offsets[THUNK_TARGET];
4703 for (i = 0; i < se->nb_fields; i++) {
4704 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4705 assert(*field_types == TYPE_PTRVOID);
4706 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4707 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4708 if (*target_rt_dev_ptr != 0) {
4709 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4710 tswapal(*target_rt_dev_ptr));
4711 if (!*host_rt_dev_ptr) {
4712 unlock_user(argptr, arg, 0);
4713 return -TARGET_EFAULT;
4714 }
4715 } else {
4716 *host_rt_dev_ptr = 0;
4717 }
4718 field_types++;
4719 continue;
4720 }
4721 field_types = thunk_convert(buf_temp + dst_offsets[i],
4722 argptr + src_offsets[i],
4723 field_types, THUNK_HOST);
4724 }
4725 unlock_user(argptr, arg, 0);
4726
4727 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4728 if (*host_rt_dev_ptr != 0) {
4729 unlock_user((void *)*host_rt_dev_ptr,
4730 *target_rt_dev_ptr, 0);
4731 }
4732 return ret;
4733}
4734
4735static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
4736 int fd, int cmd, abi_long arg)
4737{
4738 int sig = target_to_host_signal(arg);
4739 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
4740}
4741
4742#ifdef TIOCGPTPEER
4743static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
4744 int fd, int cmd, abi_long arg)
4745{
4746 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
4747 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
4748}
4749#endif
4750
4751static IOCTLEntry ioctl_entries[] = {
4752#define IOCTL(cmd, access, ...) \
4753 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
4754#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
4755 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
4756#define IOCTL_IGNORE(cmd) \
4757 { TARGET_ ## cmd, 0, #cmd },
4758#include "ioctls.h"
4759 { 0, 0, },
4760};
4761
4762
4763
4764static abi_long do_ioctl(int fd, int cmd, abi_long arg)
4765{
4766 const IOCTLEntry *ie;
4767 const argtype *arg_type;
4768 abi_long ret;
4769 uint8_t buf_temp[MAX_STRUCT_SIZE];
4770 int target_size;
4771 void *argptr;
4772
4773 ie = ioctl_entries;
4774 for(;;) {
4775 if (ie->target_cmd == 0) {
4776 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
4777 return -TARGET_ENOSYS;
4778 }
4779 if (ie->target_cmd == cmd)
4780 break;
4781 ie++;
4782 }
4783 arg_type = ie->arg_type;
4784 if (ie->do_ioctl) {
4785 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
4786 } else if (!ie->host_cmd) {
4787
4788
4789 return -TARGET_ENOSYS;
4790 }
4791
4792 switch(arg_type[0]) {
4793 case TYPE_NULL:
4794
4795 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
4796 break;
4797 case TYPE_PTRVOID:
4798 case TYPE_INT:
4799 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
4800 break;
4801 case TYPE_PTR:
4802 arg_type++;
4803 target_size = thunk_type_size(arg_type, 0);
4804 switch(ie->access) {
4805 case IOC_R:
4806 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4807 if (!is_error(ret)) {
4808 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4809 if (!argptr)
4810 return -TARGET_EFAULT;
4811 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4812 unlock_user(argptr, arg, target_size);
4813 }
4814 break;
4815 case IOC_W:
4816 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4817 if (!argptr)
4818 return -TARGET_EFAULT;
4819 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4820 unlock_user(argptr, arg, 0);
4821 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4822 break;
4823 default:
4824 case IOC_RW:
4825 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4826 if (!argptr)
4827 return -TARGET_EFAULT;
4828 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4829 unlock_user(argptr, arg, 0);
4830 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4831 if (!is_error(ret)) {
4832 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4833 if (!argptr)
4834 return -TARGET_EFAULT;
4835 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4836 unlock_user(argptr, arg, target_size);
4837 }
4838 break;
4839 }
4840 break;
4841 default:
4842 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
4843 (long)cmd, arg_type[0]);
4844 ret = -TARGET_ENOSYS;
4845 break;
4846 }
4847 return ret;
4848}
4849
4850static const bitmask_transtbl iflag_tbl[] = {
4851 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
4852 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
4853 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
4854 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
4855 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
4856 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
4857 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
4858 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
4859 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
4860 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
4861 { TARGET_IXON, TARGET_IXON, IXON, IXON },
4862 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
4863 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
4864 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
4865 { 0, 0, 0, 0 }
4866};
4867
4868static const bitmask_transtbl oflag_tbl[] = {
4869 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
4870 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
4871 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
4872 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
4873 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
4874 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
4875 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
4876 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
4877 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
4878 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
4879 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
4880 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
4881 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
4882 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
4883 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
4884 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
4885 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
4886 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
4887 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
4888 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
4889 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
4890 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
4891 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
4892 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
4893 { 0, 0, 0, 0 }
4894};
4895
4896static const bitmask_transtbl cflag_tbl[] = {
4897 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
4898 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
4899 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
4900 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
4901 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
4902 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
4903 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
4904 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
4905 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
4906 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
4907 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
4908 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
4909 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
4910 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
4911 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
4912 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
4913 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
4914 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
4915 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
4916 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
4917 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
4918 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
4919 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
4920 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
4921 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
4922 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
4923 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
4924 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
4925 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
4926 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
4927 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
4928 { 0, 0, 0, 0 }
4929};
4930
4931static const bitmask_transtbl lflag_tbl[] = {
4932 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
4933 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
4934 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
4935 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
4936 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
4937 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
4938 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
4939 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
4940 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
4941 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
4942 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
4943 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
4944 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
4945 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
4946 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
4947 { 0, 0, 0, 0 }
4948};
4949
4950static void target_to_host_termios (void *dst, const void *src)
4951{
4952 struct host_termios *host = dst;
4953 const struct target_termios *target = src;
4954
4955 host->c_iflag =
4956 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
4957 host->c_oflag =
4958 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
4959 host->c_cflag =
4960 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
4961 host->c_lflag =
4962 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
4963 host->c_line = target->c_line;
4964
4965 memset(host->c_cc, 0, sizeof(host->c_cc));
4966 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
4967 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
4968 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
4969 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
4970 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
4971 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
4972 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
4973 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
4974 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
4975 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
4976 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
4977 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
4978 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
4979 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
4980 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
4981 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
4982 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
4983}
4984
4985static void host_to_target_termios (void *dst, const void *src)
4986{
4987 struct target_termios *target = dst;
4988 const struct host_termios *host = src;
4989
4990 target->c_iflag =
4991 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
4992 target->c_oflag =
4993 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
4994 target->c_cflag =
4995 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
4996 target->c_lflag =
4997 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
4998 target->c_line = host->c_line;
4999
5000 memset(target->c_cc, 0, sizeof(target->c_cc));
5001 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
5002 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
5003 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
5004 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
5005 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
5006 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
5007 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
5008 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
5009 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
5010 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
5011 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
5012 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
5013 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
5014 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
5015 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
5016 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
5017 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
5018}
5019
5020static const StructEntry struct_termios_def = {
5021 .convert = { host_to_target_termios, target_to_host_termios },
5022 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
5023 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
5024};
5025
5026static bitmask_transtbl mmap_flags_tbl[] = {
5027 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
5028 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
5029 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
5030 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
5031 MAP_ANONYMOUS, MAP_ANONYMOUS },
5032 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
5033 MAP_GROWSDOWN, MAP_GROWSDOWN },
5034 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
5035 MAP_DENYWRITE, MAP_DENYWRITE },
5036 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
5037 MAP_EXECUTABLE, MAP_EXECUTABLE },
5038 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
5039 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
5040 MAP_NORESERVE, MAP_NORESERVE },
5041 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
5042
5043
5044
5045 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
5046 { 0, 0, 0, 0 }
5047};
5048
5049#if defined(TARGET_I386)
5050
5051
5052static uint8_t *ldt_table;
5053
5054static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
5055{
5056 int size;
5057 void *p;
5058
5059 if (!ldt_table)
5060 return 0;
5061 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5062 if (size > bytecount)
5063 size = bytecount;
5064 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5065 if (!p)
5066 return -TARGET_EFAULT;
5067
5068 memcpy(p, ldt_table, size);
5069 unlock_user(p, ptr, size);
5070 return size;
5071}
5072
5073
5074static abi_long write_ldt(CPUX86State *env,
5075 abi_ulong ptr, unsigned long bytecount, int oldmode)
5076{
5077 struct target_modify_ldt_ldt_s ldt_info;
5078 struct target_modify_ldt_ldt_s *target_ldt_info;
5079 int seg_32bit, contents, read_exec_only, limit_in_pages;
5080 int seg_not_present, useable, lm;
5081 uint32_t *lp, entry_1, entry_2;
5082
5083 if (bytecount != sizeof(ldt_info))
5084 return -TARGET_EINVAL;
5085 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
5086 return -TARGET_EFAULT;
5087 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
5088 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
5089 ldt_info.limit = tswap32(target_ldt_info->limit);
5090 ldt_info.flags = tswap32(target_ldt_info->flags);
5091 unlock_user_struct(target_ldt_info, ptr, 0);
5092
5093 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
5094 return -TARGET_EINVAL;
5095 seg_32bit = ldt_info.flags & 1;
5096 contents = (ldt_info.flags >> 1) & 3;
5097 read_exec_only = (ldt_info.flags >> 3) & 1;
5098 limit_in_pages = (ldt_info.flags >> 4) & 1;
5099 seg_not_present = (ldt_info.flags >> 5) & 1;
5100 useable = (ldt_info.flags >> 6) & 1;
5101#ifdef TARGET_ABI32
5102 lm = 0;
5103#else
5104 lm = (ldt_info.flags >> 7) & 1;
5105#endif
5106 if (contents == 3) {
5107 if (oldmode)
5108 return -TARGET_EINVAL;
5109 if (seg_not_present == 0)
5110 return -TARGET_EINVAL;
5111 }
5112
5113 if (!ldt_table) {
5114 env->ldt.base = target_mmap(0,
5115 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5116 PROT_READ|PROT_WRITE,
5117 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5118 if (env->ldt.base == -1)
5119 return -TARGET_ENOMEM;
5120 memset(g2h(env->ldt.base), 0,
5121 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
5122 env->ldt.limit = 0xffff;
5123 ldt_table = g2h(env->ldt.base);
5124 }
5125
5126
5127
5128 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5129 if (oldmode ||
5130 (contents == 0 &&
5131 read_exec_only == 1 &&
5132 seg_32bit == 0 &&
5133 limit_in_pages == 0 &&
5134 seg_not_present == 1 &&
5135 useable == 0 )) {
5136 entry_1 = 0;
5137 entry_2 = 0;
5138 goto install;
5139 }
5140 }
5141
5142 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5143 (ldt_info.limit & 0x0ffff);
5144 entry_2 = (ldt_info.base_addr & 0xff000000) |
5145 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5146 (ldt_info.limit & 0xf0000) |
5147 ((read_exec_only ^ 1) << 9) |
5148 (contents << 10) |
5149 ((seg_not_present ^ 1) << 15) |
5150 (seg_32bit << 22) |
5151 (limit_in_pages << 23) |
5152 (lm << 21) |
5153 0x7000;
5154 if (!oldmode)
5155 entry_2 |= (useable << 20);
5156
5157
5158install:
5159 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5160 lp[0] = tswap32(entry_1);
5161 lp[1] = tswap32(entry_2);
5162 return 0;
5163}
5164
5165
5166static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5167 unsigned long bytecount)
5168{
5169 abi_long ret;
5170
5171 switch (func) {
5172 case 0:
5173 ret = read_ldt(ptr, bytecount);
5174 break;
5175 case 1:
5176 ret = write_ldt(env, ptr, bytecount, 1);
5177 break;
5178 case 0x11:
5179 ret = write_ldt(env, ptr, bytecount, 0);
5180 break;
5181 default:
5182 ret = -TARGET_ENOSYS;
5183 break;
5184 }
5185 return ret;
5186}
5187
5188#if defined(TARGET_I386) && defined(TARGET_ABI32)
5189abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
5190{
5191 uint64_t *gdt_table = g2h(env->gdt.base);
5192 struct target_modify_ldt_ldt_s ldt_info;
5193 struct target_modify_ldt_ldt_s *target_ldt_info;
5194 int seg_32bit, contents, read_exec_only, limit_in_pages;
5195 int seg_not_present, useable, lm;
5196 uint32_t *lp, entry_1, entry_2;
5197 int i;
5198
5199 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5200 if (!target_ldt_info)
5201 return -TARGET_EFAULT;
5202 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
5203 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
5204 ldt_info.limit = tswap32(target_ldt_info->limit);
5205 ldt_info.flags = tswap32(target_ldt_info->flags);
5206 if (ldt_info.entry_number == -1) {
5207 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5208 if (gdt_table[i] == 0) {
5209 ldt_info.entry_number = i;
5210 target_ldt_info->entry_number = tswap32(i);
5211 break;
5212 }
5213 }
5214 }
5215 unlock_user_struct(target_ldt_info, ptr, 1);
5216
5217 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5218 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5219 return -TARGET_EINVAL;
5220 seg_32bit = ldt_info.flags & 1;
5221 contents = (ldt_info.flags >> 1) & 3;
5222 read_exec_only = (ldt_info.flags >> 3) & 1;
5223 limit_in_pages = (ldt_info.flags >> 4) & 1;
5224 seg_not_present = (ldt_info.flags >> 5) & 1;
5225 useable = (ldt_info.flags >> 6) & 1;
5226#ifdef TARGET_ABI32
5227 lm = 0;
5228#else
5229 lm = (ldt_info.flags >> 7) & 1;
5230#endif
5231
5232 if (contents == 3) {
5233 if (seg_not_present == 0)
5234 return -TARGET_EINVAL;
5235 }
5236
5237
5238
5239 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5240 if ((contents == 0 &&
5241 read_exec_only == 1 &&
5242 seg_32bit == 0 &&
5243 limit_in_pages == 0 &&
5244 seg_not_present == 1 &&
5245 useable == 0 )) {
5246 entry_1 = 0;
5247 entry_2 = 0;
5248 goto install;
5249 }
5250 }
5251
5252 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5253 (ldt_info.limit & 0x0ffff);
5254 entry_2 = (ldt_info.base_addr & 0xff000000) |
5255 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5256 (ldt_info.limit & 0xf0000) |
5257 ((read_exec_only ^ 1) << 9) |
5258 (contents << 10) |
5259 ((seg_not_present ^ 1) << 15) |
5260 (seg_32bit << 22) |
5261 (limit_in_pages << 23) |
5262 (useable << 20) |
5263 (lm << 21) |
5264 0x7000;
5265
5266
5267install:
5268 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5269 lp[0] = tswap32(entry_1);
5270 lp[1] = tswap32(entry_2);
5271 return 0;
5272}
5273
5274static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
5275{
5276 struct target_modify_ldt_ldt_s *target_ldt_info;
5277 uint64_t *gdt_table = g2h(env->gdt.base);
5278 uint32_t base_addr, limit, flags;
5279 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5280 int seg_not_present, useable, lm;
5281 uint32_t *lp, entry_1, entry_2;
5282
5283 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5284 if (!target_ldt_info)
5285 return -TARGET_EFAULT;
5286 idx = tswap32(target_ldt_info->entry_number);
5287 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5288 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5289 unlock_user_struct(target_ldt_info, ptr, 1);
5290 return -TARGET_EINVAL;
5291 }
5292 lp = (uint32_t *)(gdt_table + idx);
5293 entry_1 = tswap32(lp[0]);
5294 entry_2 = tswap32(lp[1]);
5295
5296 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5297 contents = (entry_2 >> 10) & 3;
5298 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5299 seg_32bit = (entry_2 >> 22) & 1;
5300 limit_in_pages = (entry_2 >> 23) & 1;
5301 useable = (entry_2 >> 20) & 1;
5302#ifdef TARGET_ABI32
5303 lm = 0;
5304#else
5305 lm = (entry_2 >> 21) & 1;
5306#endif
5307 flags = (seg_32bit << 0) | (contents << 1) |
5308 (read_exec_only << 3) | (limit_in_pages << 4) |
5309 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5310 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5311 base_addr = (entry_1 >> 16) |
5312 (entry_2 & 0xff000000) |
5313 ((entry_2 & 0xff) << 16);
5314 target_ldt_info->base_addr = tswapal(base_addr);
5315 target_ldt_info->limit = tswap32(limit);
5316 target_ldt_info->flags = tswap32(flags);
5317 unlock_user_struct(target_ldt_info, ptr, 1);
5318 return 0;
5319}
5320#endif
5321
5322#ifndef TARGET_ABI32
5323abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
5324{
5325 abi_long ret = 0;
5326 abi_ulong val;
5327 int idx;
5328
5329 switch(code) {
5330 case TARGET_ARCH_SET_GS:
5331 case TARGET_ARCH_SET_FS:
5332 if (code == TARGET_ARCH_SET_GS)
5333 idx = R_GS;
5334 else
5335 idx = R_FS;
5336 cpu_x86_load_seg(env, idx, 0);
5337 env->segs[idx].base = addr;
5338 break;
5339 case TARGET_ARCH_GET_GS:
5340 case TARGET_ARCH_GET_FS:
5341 if (code == TARGET_ARCH_GET_GS)
5342 idx = R_GS;
5343 else
5344 idx = R_FS;
5345 val = env->segs[idx].base;
5346 if (put_user(val, addr, abi_ulong))
5347 ret = -TARGET_EFAULT;
5348 break;
5349 default:
5350 ret = -TARGET_EINVAL;
5351 break;
5352 }
5353 return ret;
5354}
5355#endif
5356
5357#endif
5358
5359#define NEW_STACK_SIZE 0x40000
5360
5361
5362static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5363typedef struct {
5364 CPUArchState *env;
5365 pthread_mutex_t mutex;
5366 pthread_cond_t cond;
5367 pthread_t thread;
5368 uint32_t tid;
5369 abi_ulong child_tidptr;
5370 abi_ulong parent_tidptr;
5371 sigset_t sigmask;
5372} new_thread_info;
5373
5374static void *clone_func(void *arg)
5375{
5376 new_thread_info *info = arg;
5377 CPUArchState *env;
5378 CPUState *cpu;
5379 TaskState *ts;
5380
5381 rcu_register_thread();
5382 tcg_register_thread();
5383 env = info->env;
5384 cpu = ENV_GET_CPU(env);
5385 thread_cpu = cpu;
5386 ts = (TaskState *)cpu->opaque;
5387 info->tid = gettid();
5388 task_settid(ts);
5389 if (info->child_tidptr)
5390 put_user_u32(info->tid, info->child_tidptr);
5391 if (info->parent_tidptr)
5392 put_user_u32(info->tid, info->parent_tidptr);
5393
5394 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5395
5396 pthread_mutex_lock(&info->mutex);
5397 pthread_cond_broadcast(&info->cond);
5398 pthread_mutex_unlock(&info->mutex);
5399
5400 pthread_mutex_lock(&clone_lock);
5401 pthread_mutex_unlock(&clone_lock);
5402 cpu_loop(env);
5403
5404 return NULL;
5405}
5406
5407
5408
5409static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
5410 abi_ulong parent_tidptr, target_ulong newtls,
5411 abi_ulong child_tidptr)
5412{
5413 CPUState *cpu = ENV_GET_CPU(env);
5414 int ret;
5415 TaskState *ts;
5416 CPUState *new_cpu;
5417 CPUArchState *new_env;
5418 sigset_t sigmask;
5419
5420 flags &= ~CLONE_IGNORED_FLAGS;
5421
5422
5423 if (flags & CLONE_VFORK)
5424 flags &= ~(CLONE_VFORK | CLONE_VM);
5425
5426 if (flags & CLONE_VM) {
5427 TaskState *parent_ts = (TaskState *)cpu->opaque;
5428 new_thread_info info;
5429 pthread_attr_t attr;
5430
5431 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
5432 (flags & CLONE_INVALID_THREAD_FLAGS)) {
5433 return -TARGET_EINVAL;
5434 }
5435
5436 ts = g_new0(TaskState, 1);
5437 init_task_state(ts);
5438
5439
5440 pthread_mutex_lock(&clone_lock);
5441
5442
5443 new_env = cpu_copy(env);
5444
5445 cpu_clone_regs(new_env, newsp);
5446 new_cpu = ENV_GET_CPU(new_env);
5447 new_cpu->opaque = ts;
5448 ts->bprm = parent_ts->bprm;
5449 ts->info = parent_ts->info;
5450 ts->signal_mask = parent_ts->signal_mask;
5451
5452 if (flags & CLONE_CHILD_CLEARTID) {
5453 ts->child_tidptr = child_tidptr;
5454 }
5455
5456 if (flags & CLONE_SETTLS) {
5457 cpu_set_tls (new_env, newtls);
5458 }
5459
5460 memset(&info, 0, sizeof(info));
5461 pthread_mutex_init(&info.mutex, NULL);
5462 pthread_mutex_lock(&info.mutex);
5463 pthread_cond_init(&info.cond, NULL);
5464 info.env = new_env;
5465 if (flags & CLONE_CHILD_SETTID) {
5466 info.child_tidptr = child_tidptr;
5467 }
5468 if (flags & CLONE_PARENT_SETTID) {
5469 info.parent_tidptr = parent_tidptr;
5470 }
5471
5472 ret = pthread_attr_init(&attr);
5473 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5474 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
5475
5476
5477 sigfillset(&sigmask);
5478 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5479
5480
5481
5482
5483 if (!parallel_cpus) {
5484 parallel_cpus = true;
5485 tb_flush(cpu);
5486 }
5487
5488 ret = pthread_create(&info.thread, &attr, clone_func, &info);
5489
5490
5491 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5492 pthread_attr_destroy(&attr);
5493 if (ret == 0) {
5494
5495 pthread_cond_wait(&info.cond, &info.mutex);
5496 ret = info.tid;
5497 } else {
5498 ret = -1;
5499 }
5500 pthread_mutex_unlock(&info.mutex);
5501 pthread_cond_destroy(&info.cond);
5502 pthread_mutex_destroy(&info.mutex);
5503 pthread_mutex_unlock(&clone_lock);
5504 } else {
5505
5506 if (flags & CLONE_INVALID_FORK_FLAGS) {
5507 return -TARGET_EINVAL;
5508 }
5509
5510
5511 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
5512 return -TARGET_EINVAL;
5513 }
5514
5515 if (block_signals()) {
5516 return -TARGET_ERESTARTSYS;
5517 }
5518
5519 fork_start();
5520 ret = fork();
5521 if (ret == 0) {
5522
5523 cpu_clone_regs(env, newsp);
5524 fork_end(1);
5525
5526
5527
5528
5529
5530
5531 if (flags & CLONE_CHILD_SETTID)
5532 put_user_u32(gettid(), child_tidptr);
5533 if (flags & CLONE_PARENT_SETTID)
5534 put_user_u32(gettid(), parent_tidptr);
5535 ts = (TaskState *)cpu->opaque;
5536 if (flags & CLONE_SETTLS)
5537 cpu_set_tls (env, newtls);
5538 if (flags & CLONE_CHILD_CLEARTID)
5539 ts->child_tidptr = child_tidptr;
5540 } else {
5541 fork_end(0);
5542 }
5543 }
5544 return ret;
5545}
5546
5547
5548static int target_to_host_fcntl_cmd(int cmd)
5549{
5550 int ret;
5551
5552 switch(cmd) {
5553 case TARGET_F_DUPFD:
5554 case TARGET_F_GETFD:
5555 case TARGET_F_SETFD:
5556 case TARGET_F_GETFL:
5557 case TARGET_F_SETFL:
5558 ret = cmd;
5559 break;
5560 case TARGET_F_GETLK:
5561 ret = F_GETLK64;
5562 break;
5563 case TARGET_F_SETLK:
5564 ret = F_SETLK64;
5565 break;
5566 case TARGET_F_SETLKW:
5567 ret = F_SETLKW64;
5568 break;
5569 case TARGET_F_GETOWN:
5570 ret = F_GETOWN;
5571 break;
5572 case TARGET_F_SETOWN:
5573 ret = F_SETOWN;
5574 break;
5575 case TARGET_F_GETSIG:
5576 ret = F_GETSIG;
5577 break;
5578 case TARGET_F_SETSIG:
5579 ret = F_SETSIG;
5580 break;
5581#if TARGET_ABI_BITS == 32
5582 case TARGET_F_GETLK64:
5583 ret = F_GETLK64;
5584 break;
5585 case TARGET_F_SETLK64:
5586 ret = F_SETLK64;
5587 break;
5588 case TARGET_F_SETLKW64:
5589 ret = F_SETLKW64;
5590 break;
5591#endif
5592 case TARGET_F_SETLEASE:
5593 ret = F_SETLEASE;
5594 break;
5595 case TARGET_F_GETLEASE:
5596 ret = F_GETLEASE;
5597 break;
5598#ifdef F_DUPFD_CLOEXEC
5599 case TARGET_F_DUPFD_CLOEXEC:
5600 ret = F_DUPFD_CLOEXEC;
5601 break;
5602#endif
5603 case TARGET_F_NOTIFY:
5604 ret = F_NOTIFY;
5605 break;
5606#ifdef F_GETOWN_EX
5607 case TARGET_F_GETOWN_EX:
5608 ret = F_GETOWN_EX;
5609 break;
5610#endif
5611#ifdef F_SETOWN_EX
5612 case TARGET_F_SETOWN_EX:
5613 ret = F_SETOWN_EX;
5614 break;
5615#endif
5616#ifdef F_SETPIPE_SZ
5617 case TARGET_F_SETPIPE_SZ:
5618 ret = F_SETPIPE_SZ;
5619 break;
5620 case TARGET_F_GETPIPE_SZ:
5621 ret = F_GETPIPE_SZ;
5622 break;
5623#endif
5624 default:
5625 ret = -TARGET_EINVAL;
5626 break;
5627 }
5628
5629#if defined(__powerpc64__)
5630
5631
5632
5633
5634
5635 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
5636 ret -= F_GETLK64 - 5;
5637 }
5638#endif
5639
5640 return ret;
5641}
5642
5643#define FLOCK_TRANSTBL \
5644 switch (type) { \
5645 TRANSTBL_CONVERT(F_RDLCK); \
5646 TRANSTBL_CONVERT(F_WRLCK); \
5647 TRANSTBL_CONVERT(F_UNLCK); \
5648 TRANSTBL_CONVERT(F_EXLCK); \
5649 TRANSTBL_CONVERT(F_SHLCK); \
5650 }
5651
5652static int target_to_host_flock(int type)
5653{
5654#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
5655 FLOCK_TRANSTBL
5656#undef TRANSTBL_CONVERT
5657 return -TARGET_EINVAL;
5658}
5659
5660static int host_to_target_flock(int type)
5661{
5662#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
5663 FLOCK_TRANSTBL
5664#undef TRANSTBL_CONVERT
5665
5666
5667
5668 return type;
5669}
5670
5671static inline abi_long copy_from_user_flock(struct flock64 *fl,
5672 abi_ulong target_flock_addr)
5673{
5674 struct target_flock *target_fl;
5675 int l_type;
5676
5677 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5678 return -TARGET_EFAULT;
5679 }
5680
5681 __get_user(l_type, &target_fl->l_type);
5682 l_type = target_to_host_flock(l_type);
5683 if (l_type < 0) {
5684 return l_type;
5685 }
5686 fl->l_type = l_type;
5687 __get_user(fl->l_whence, &target_fl->l_whence);
5688 __get_user(fl->l_start, &target_fl->l_start);
5689 __get_user(fl->l_len, &target_fl->l_len);
5690 __get_user(fl->l_pid, &target_fl->l_pid);
5691 unlock_user_struct(target_fl, target_flock_addr, 0);
5692 return 0;
5693}
5694
5695static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
5696 const struct flock64 *fl)
5697{
5698 struct target_flock *target_fl;
5699 short l_type;
5700
5701 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5702 return -TARGET_EFAULT;
5703 }
5704
5705 l_type = host_to_target_flock(fl->l_type);
5706 __put_user(l_type, &target_fl->l_type);
5707 __put_user(fl->l_whence, &target_fl->l_whence);
5708 __put_user(fl->l_start, &target_fl->l_start);
5709 __put_user(fl->l_len, &target_fl->l_len);
5710 __put_user(fl->l_pid, &target_fl->l_pid);
5711 unlock_user_struct(target_fl, target_flock_addr, 1);
5712 return 0;
5713}
5714
5715typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
5716typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
5717
5718#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
5719static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
5720 abi_ulong target_flock_addr)
5721{
5722 struct target_oabi_flock64 *target_fl;
5723 int l_type;
5724
5725 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5726 return -TARGET_EFAULT;
5727 }
5728
5729 __get_user(l_type, &target_fl->l_type);
5730 l_type = target_to_host_flock(l_type);
5731 if (l_type < 0) {
5732 return l_type;
5733 }
5734 fl->l_type = l_type;
5735 __get_user(fl->l_whence, &target_fl->l_whence);
5736 __get_user(fl->l_start, &target_fl->l_start);
5737 __get_user(fl->l_len, &target_fl->l_len);
5738 __get_user(fl->l_pid, &target_fl->l_pid);
5739 unlock_user_struct(target_fl, target_flock_addr, 0);
5740 return 0;
5741}
5742
5743static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
5744 const struct flock64 *fl)
5745{
5746 struct target_oabi_flock64 *target_fl;
5747 short l_type;
5748
5749 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5750 return -TARGET_EFAULT;
5751 }
5752
5753 l_type = host_to_target_flock(fl->l_type);
5754 __put_user(l_type, &target_fl->l_type);
5755 __put_user(fl->l_whence, &target_fl->l_whence);
5756 __put_user(fl->l_start, &target_fl->l_start);
5757 __put_user(fl->l_len, &target_fl->l_len);
5758 __put_user(fl->l_pid, &target_fl->l_pid);
5759 unlock_user_struct(target_fl, target_flock_addr, 1);
5760 return 0;
5761}
5762#endif
5763
5764static inline abi_long copy_from_user_flock64(struct flock64 *fl,
5765 abi_ulong target_flock_addr)
5766{
5767 struct target_flock64 *target_fl;
5768 int l_type;
5769
5770 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5771 return -TARGET_EFAULT;
5772 }
5773
5774 __get_user(l_type, &target_fl->l_type);
5775 l_type = target_to_host_flock(l_type);
5776 if (l_type < 0) {
5777 return l_type;
5778 }
5779 fl->l_type = l_type;
5780 __get_user(fl->l_whence, &target_fl->l_whence);
5781 __get_user(fl->l_start, &target_fl->l_start);
5782 __get_user(fl->l_len, &target_fl->l_len);
5783 __get_user(fl->l_pid, &target_fl->l_pid);
5784 unlock_user_struct(target_fl, target_flock_addr, 0);
5785 return 0;
5786}
5787
5788static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
5789 const struct flock64 *fl)
5790{
5791 struct target_flock64 *target_fl;
5792 short l_type;
5793
5794 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5795 return -TARGET_EFAULT;
5796 }
5797
5798 l_type = host_to_target_flock(fl->l_type);
5799 __put_user(l_type, &target_fl->l_type);
5800 __put_user(fl->l_whence, &target_fl->l_whence);
5801 __put_user(fl->l_start, &target_fl->l_start);
5802 __put_user(fl->l_len, &target_fl->l_len);
5803 __put_user(fl->l_pid, &target_fl->l_pid);
5804 unlock_user_struct(target_fl, target_flock_addr, 1);
5805 return 0;
5806}
5807
5808static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
5809{
5810 struct flock64 fl64;
5811#ifdef F_GETOWN_EX
5812 struct f_owner_ex fox;
5813 struct target_f_owner_ex *target_fox;
5814#endif
5815 abi_long ret;
5816 int host_cmd = target_to_host_fcntl_cmd(cmd);
5817
5818 if (host_cmd == -TARGET_EINVAL)
5819 return host_cmd;
5820
5821 switch(cmd) {
5822 case TARGET_F_GETLK:
5823 ret = copy_from_user_flock(&fl64, arg);
5824 if (ret) {
5825 return ret;
5826 }
5827 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
5828 if (ret == 0) {
5829 ret = copy_to_user_flock(arg, &fl64);
5830 }
5831 break;
5832
5833 case TARGET_F_SETLK:
5834 case TARGET_F_SETLKW:
5835 ret = copy_from_user_flock(&fl64, arg);
5836 if (ret) {
5837 return ret;
5838 }
5839 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
5840 break;
5841
5842 case TARGET_F_GETLK64:
5843 ret = copy_from_user_flock64(&fl64, arg);
5844 if (ret) {
5845 return ret;
5846 }
5847 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
5848 if (ret == 0) {
5849 ret = copy_to_user_flock64(arg, &fl64);
5850 }
5851 break;
5852 case TARGET_F_SETLK64:
5853 case TARGET_F_SETLKW64:
5854 ret = copy_from_user_flock64(&fl64, arg);
5855 if (ret) {
5856 return ret;
5857 }
5858 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
5859 break;
5860
5861 case TARGET_F_GETFL:
5862 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
5863 if (ret >= 0) {
5864 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
5865 }
5866 break;
5867
5868 case TARGET_F_SETFL:
5869 ret = get_errno(safe_fcntl(fd, host_cmd,
5870 target_to_host_bitmask(arg,
5871 fcntl_flags_tbl)));
5872 break;
5873
5874#ifdef F_GETOWN_EX
5875 case TARGET_F_GETOWN_EX:
5876 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
5877 if (ret >= 0) {
5878 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
5879 return -TARGET_EFAULT;
5880 target_fox->type = tswap32(fox.type);
5881 target_fox->pid = tswap32(fox.pid);
5882 unlock_user_struct(target_fox, arg, 1);
5883 }
5884 break;
5885#endif
5886
5887#ifdef F_SETOWN_EX
5888 case TARGET_F_SETOWN_EX:
5889 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
5890 return -TARGET_EFAULT;
5891 fox.type = tswap32(target_fox->type);
5892 fox.pid = tswap32(target_fox->pid);
5893 unlock_user_struct(target_fox, arg, 0);
5894 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
5895 break;
5896#endif
5897
5898 case TARGET_F_SETOWN:
5899 case TARGET_F_GETOWN:
5900 case TARGET_F_SETSIG:
5901 case TARGET_F_GETSIG:
5902 case TARGET_F_SETLEASE:
5903 case TARGET_F_GETLEASE:
5904 case TARGET_F_SETPIPE_SZ:
5905 case TARGET_F_GETPIPE_SZ:
5906 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
5907 break;
5908
5909 default:
5910 ret = get_errno(safe_fcntl(fd, cmd, arg));
5911 break;
5912 }
5913 return ret;
5914}
5915
5916#ifdef USE_UID16
5917
5918static inline int high2lowuid(int uid)
5919{
5920 if (uid > 65535)
5921 return 65534;
5922 else
5923 return uid;
5924}
5925
5926static inline int high2lowgid(int gid)
5927{
5928 if (gid > 65535)
5929 return 65534;
5930 else
5931 return gid;
5932}
5933
5934static inline int low2highuid(int uid)
5935{
5936 if ((int16_t)uid == -1)
5937 return -1;
5938 else
5939 return uid;
5940}
5941
5942static inline int low2highgid(int gid)
5943{
5944 if ((int16_t)gid == -1)
5945 return -1;
5946 else
5947 return gid;
5948}
5949static inline int tswapid(int id)
5950{
5951 return tswap16(id);
5952}
5953
5954#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
5955
5956#else
5957static inline int high2lowuid(int uid)
5958{
5959 return uid;
5960}
5961static inline int high2lowgid(int gid)
5962{
5963 return gid;
5964}
5965static inline int low2highuid(int uid)
5966{
5967 return uid;
5968}
5969static inline int low2highgid(int gid)
5970{
5971 return gid;
5972}
5973static inline int tswapid(int id)
5974{
5975 return tswap32(id);
5976}
5977
5978#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
5979
5980#endif
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990#ifdef __NR_setuid32
5991#define __NR_sys_setuid __NR_setuid32
5992#else
5993#define __NR_sys_setuid __NR_setuid
5994#endif
5995#ifdef __NR_setgid32
5996#define __NR_sys_setgid __NR_setgid32
5997#else
5998#define __NR_sys_setgid __NR_setgid
5999#endif
6000#ifdef __NR_setresuid32
6001#define __NR_sys_setresuid __NR_setresuid32
6002#else
6003#define __NR_sys_setresuid __NR_setresuid
6004#endif
6005#ifdef __NR_setresgid32
6006#define __NR_sys_setresgid __NR_setresgid32
6007#else
6008#define __NR_sys_setresgid __NR_setresgid
6009#endif
6010
6011_syscall1(int, sys_setuid, uid_t, uid)
6012_syscall1(int, sys_setgid, gid_t, gid)
6013_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
6014_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
6015
6016void syscall_init(void)
6017{
6018 IOCTLEntry *ie;
6019 const argtype *arg_type;
6020 int size;
6021 int i;
6022
6023 thunk_init(STRUCT_MAX);
6024
6025#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
6026#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
6027#include "syscall_types.h"
6028#undef STRUCT
6029#undef STRUCT_SPECIAL
6030
6031
6032
6033 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
6034 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
6035 }
6036
6037
6038
6039 ie = ioctl_entries;
6040 while (ie->target_cmd != 0) {
6041 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
6042 TARGET_IOC_SIZEMASK) {
6043 arg_type = ie->arg_type;
6044 if (arg_type[0] != TYPE_PTR) {
6045 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
6046 ie->target_cmd);
6047 exit(1);
6048 }
6049 arg_type++;
6050 size = thunk_type_size(arg_type, 0);
6051 ie->target_cmd = (ie->target_cmd &
6052 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
6053 (size << TARGET_IOC_SIZESHIFT);
6054 }
6055
6056
6057#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6058 (defined(__x86_64__) && defined(TARGET_X86_64))
6059 if (unlikely(ie->target_cmd != ie->host_cmd)) {
6060 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
6061 ie->name, ie->target_cmd, ie->host_cmd);
6062 }
6063#endif
6064 ie++;
6065 }
6066}
6067
6068#if TARGET_ABI_BITS == 32
6069static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
6070{
6071#ifdef TARGET_WORDS_BIGENDIAN
6072 return ((uint64_t)word0 << 32) | word1;
6073#else
6074 return ((uint64_t)word1 << 32) | word0;
6075#endif
6076}
6077#else
6078static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
6079{
6080 return word0;
6081}
6082#endif
6083
6084#ifdef TARGET_NR_truncate64
6085static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
6086 abi_long arg2,
6087 abi_long arg3,
6088 abi_long arg4)
6089{
6090 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
6091 arg2 = arg3;
6092 arg3 = arg4;
6093 }
6094 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
6095}
6096#endif
6097
6098#ifdef TARGET_NR_ftruncate64
6099static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
6100 abi_long arg2,
6101 abi_long arg3,
6102 abi_long arg4)
6103{
6104 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
6105 arg2 = arg3;
6106 arg3 = arg4;
6107 }
6108 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
6109}
6110#endif
6111
6112static inline abi_long target_to_host_timespec(struct timespec *host_ts,
6113 abi_ulong target_addr)
6114{
6115 struct target_timespec *target_ts;
6116
6117 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
6118 return -TARGET_EFAULT;
6119 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
6120 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
6121 unlock_user_struct(target_ts, target_addr, 0);
6122 return 0;
6123}
6124
6125static inline abi_long host_to_target_timespec(abi_ulong target_addr,
6126 struct timespec *host_ts)
6127{
6128 struct target_timespec *target_ts;
6129
6130 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
6131 return -TARGET_EFAULT;
6132 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
6133 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
6134 unlock_user_struct(target_ts, target_addr, 1);
6135 return 0;
6136}
6137
6138static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
6139 abi_ulong target_addr)
6140{
6141 struct target_itimerspec *target_itspec;
6142
6143 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
6144 return -TARGET_EFAULT;
6145 }
6146
6147 host_itspec->it_interval.tv_sec =
6148 tswapal(target_itspec->it_interval.tv_sec);
6149 host_itspec->it_interval.tv_nsec =
6150 tswapal(target_itspec->it_interval.tv_nsec);
6151 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
6152 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
6153
6154 unlock_user_struct(target_itspec, target_addr, 1);
6155 return 0;
6156}
6157
6158static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
6159 struct itimerspec *host_its)
6160{
6161 struct target_itimerspec *target_itspec;
6162
6163 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
6164 return -TARGET_EFAULT;
6165 }
6166
6167 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
6168 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
6169
6170 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
6171 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
6172
6173 unlock_user_struct(target_itspec, target_addr, 0);
6174 return 0;
6175}
6176
6177static inline abi_long target_to_host_timex(struct timex *host_tx,
6178 abi_long target_addr)
6179{
6180 struct target_timex *target_tx;
6181
6182 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
6183 return -TARGET_EFAULT;
6184 }
6185
6186 __get_user(host_tx->modes, &target_tx->modes);
6187 __get_user(host_tx->offset, &target_tx->offset);
6188 __get_user(host_tx->freq, &target_tx->freq);
6189 __get_user(host_tx->maxerror, &target_tx->maxerror);
6190 __get_user(host_tx->esterror, &target_tx->esterror);
6191 __get_user(host_tx->status, &target_tx->status);
6192 __get_user(host_tx->constant, &target_tx->constant);
6193 __get_user(host_tx->precision, &target_tx->precision);
6194 __get_user(host_tx->tolerance, &target_tx->tolerance);
6195 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6196 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6197 __get_user(host_tx->tick, &target_tx->tick);
6198 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6199 __get_user(host_tx->jitter, &target_tx->jitter);
6200 __get_user(host_tx->shift, &target_tx->shift);
6201 __get_user(host_tx->stabil, &target_tx->stabil);
6202 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
6203 __get_user(host_tx->calcnt, &target_tx->calcnt);
6204 __get_user(host_tx->errcnt, &target_tx->errcnt);
6205 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
6206 __get_user(host_tx->tai, &target_tx->tai);
6207
6208 unlock_user_struct(target_tx, target_addr, 0);
6209 return 0;
6210}
6211
6212static inline abi_long host_to_target_timex(abi_long target_addr,
6213 struct timex *host_tx)
6214{
6215 struct target_timex *target_tx;
6216
6217 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
6218 return -TARGET_EFAULT;
6219 }
6220
6221 __put_user(host_tx->modes, &target_tx->modes);
6222 __put_user(host_tx->offset, &target_tx->offset);
6223 __put_user(host_tx->freq, &target_tx->freq);
6224 __put_user(host_tx->maxerror, &target_tx->maxerror);
6225 __put_user(host_tx->esterror, &target_tx->esterror);
6226 __put_user(host_tx->status, &target_tx->status);
6227 __put_user(host_tx->constant, &target_tx->constant);
6228 __put_user(host_tx->precision, &target_tx->precision);
6229 __put_user(host_tx->tolerance, &target_tx->tolerance);
6230 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6231 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6232 __put_user(host_tx->tick, &target_tx->tick);
6233 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6234 __put_user(host_tx->jitter, &target_tx->jitter);
6235 __put_user(host_tx->shift, &target_tx->shift);
6236 __put_user(host_tx->stabil, &target_tx->stabil);
6237 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
6238 __put_user(host_tx->calcnt, &target_tx->calcnt);
6239 __put_user(host_tx->errcnt, &target_tx->errcnt);
6240 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
6241 __put_user(host_tx->tai, &target_tx->tai);
6242
6243 unlock_user_struct(target_tx, target_addr, 1);
6244 return 0;
6245}
6246
6247
6248static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
6249 abi_ulong target_addr)
6250{
6251 struct target_sigevent *target_sevp;
6252
6253 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
6254 return -TARGET_EFAULT;
6255 }
6256
6257
6258
6259
6260
6261
6262
6263 host_sevp->sigev_value.sival_ptr =
6264 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
6265 host_sevp->sigev_signo =
6266 target_to_host_signal(tswap32(target_sevp->sigev_signo));
6267 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
6268 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
6269
6270 unlock_user_struct(target_sevp, target_addr, 1);
6271 return 0;
6272}
6273
6274#if defined(TARGET_NR_mlockall)
6275static inline int target_to_host_mlockall_arg(int arg)
6276{
6277 int result = 0;
6278
6279 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
6280 result |= MCL_CURRENT;
6281 }
6282 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
6283 result |= MCL_FUTURE;
6284 }
6285 return result;
6286}
6287#endif
6288
6289#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
6290 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
6291 defined(TARGET_NR_newfstatat))
6292static inline abi_long host_to_target_stat64(void *cpu_env,
6293 abi_ulong target_addr,
6294 struct stat *host_st)
6295{
6296#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6297 if (((CPUARMState *)cpu_env)->eabi) {
6298 struct target_eabi_stat64 *target_st;
6299
6300 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6301 return -TARGET_EFAULT;
6302 memset(target_st, 0, sizeof(struct target_eabi_stat64));
6303 __put_user(host_st->st_dev, &target_st->st_dev);
6304 __put_user(host_st->st_ino, &target_st->st_ino);
6305#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6306 __put_user(host_st->st_ino, &target_st->__st_ino);
6307#endif
6308 __put_user(host_st->st_mode, &target_st->st_mode);
6309 __put_user(host_st->st_nlink, &target_st->st_nlink);
6310 __put_user(host_st->st_uid, &target_st->st_uid);
6311 __put_user(host_st->st_gid, &target_st->st_gid);
6312 __put_user(host_st->st_rdev, &target_st->st_rdev);
6313 __put_user(host_st->st_size, &target_st->st_size);
6314 __put_user(host_st->st_blksize, &target_st->st_blksize);
6315 __put_user(host_st->st_blocks, &target_st->st_blocks);
6316 __put_user(host_st->st_atime, &target_st->target_st_atime);
6317 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6318 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6319 unlock_user_struct(target_st, target_addr, 1);
6320 } else
6321#endif
6322 {
6323#if defined(TARGET_HAS_STRUCT_STAT64)
6324 struct target_stat64 *target_st;
6325#else
6326 struct target_stat *target_st;
6327#endif
6328
6329 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6330 return -TARGET_EFAULT;
6331 memset(target_st, 0, sizeof(*target_st));
6332 __put_user(host_st->st_dev, &target_st->st_dev);
6333 __put_user(host_st->st_ino, &target_st->st_ino);
6334#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6335 __put_user(host_st->st_ino, &target_st->__st_ino);
6336#endif
6337 __put_user(host_st->st_mode, &target_st->st_mode);
6338 __put_user(host_st->st_nlink, &target_st->st_nlink);
6339 __put_user(host_st->st_uid, &target_st->st_uid);
6340 __put_user(host_st->st_gid, &target_st->st_gid);
6341 __put_user(host_st->st_rdev, &target_st->st_rdev);
6342
6343 __put_user(host_st->st_size, &target_st->st_size);
6344 __put_user(host_st->st_blksize, &target_st->st_blksize);
6345 __put_user(host_st->st_blocks, &target_st->st_blocks);
6346 __put_user(host_st->st_atime, &target_st->target_st_atime);
6347 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6348 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6349 unlock_user_struct(target_st, target_addr, 1);
6350 }
6351
6352 return 0;
6353}
6354#endif
6355
6356
6357
6358
6359
6360
6361static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6362 target_ulong uaddr2, int val3)
6363{
6364 struct timespec ts, *pts;
6365 int base_op;
6366
6367
6368
6369#ifdef FUTEX_CMD_MASK
6370 base_op = op & FUTEX_CMD_MASK;
6371#else
6372 base_op = op;
6373#endif
6374 switch (base_op) {
6375 case FUTEX_WAIT:
6376 case FUTEX_WAIT_BITSET:
6377 if (timeout) {
6378 pts = &ts;
6379 target_to_host_timespec(pts, timeout);
6380 } else {
6381 pts = NULL;
6382 }
6383 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
6384 pts, NULL, val3));
6385 case FUTEX_WAKE:
6386 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
6387 case FUTEX_FD:
6388 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
6389 case FUTEX_REQUEUE:
6390 case FUTEX_CMP_REQUEUE:
6391 case FUTEX_WAKE_OP:
6392
6393
6394
6395
6396
6397 pts = (struct timespec *)(uintptr_t) timeout;
6398 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6399 g2h(uaddr2),
6400 (base_op == FUTEX_CMP_REQUEUE
6401 ? tswap32(val3)
6402 : val3)));
6403 default:
6404 return -TARGET_ENOSYS;
6405 }
6406}
6407#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6408static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6409 abi_long handle, abi_long mount_id,
6410 abi_long flags)
6411{
6412 struct file_handle *target_fh;
6413 struct file_handle *fh;
6414 int mid = 0;
6415 abi_long ret;
6416 char *name;
6417 unsigned int size, total_size;
6418
6419 if (get_user_s32(size, handle)) {
6420 return -TARGET_EFAULT;
6421 }
6422
6423 name = lock_user_string(pathname);
6424 if (!name) {
6425 return -TARGET_EFAULT;
6426 }
6427
6428 total_size = sizeof(struct file_handle) + size;
6429 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6430 if (!target_fh) {
6431 unlock_user(name, pathname, 0);
6432 return -TARGET_EFAULT;
6433 }
6434
6435 fh = g_malloc0(total_size);
6436 fh->handle_bytes = size;
6437
6438 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6439 unlock_user(name, pathname, 0);
6440
6441
6442
6443
6444
6445
6446 memcpy(target_fh, fh, total_size);
6447 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6448 target_fh->handle_type = tswap32(fh->handle_type);
6449 g_free(fh);
6450 unlock_user(target_fh, handle, total_size);
6451
6452 if (put_user_s32(mid, mount_id)) {
6453 return -TARGET_EFAULT;
6454 }
6455
6456 return ret;
6457
6458}
6459#endif
6460
6461#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6462static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6463 abi_long flags)
6464{
6465 struct file_handle *target_fh;
6466 struct file_handle *fh;
6467 unsigned int size, total_size;
6468 abi_long ret;
6469
6470 if (get_user_s32(size, handle)) {
6471 return -TARGET_EFAULT;
6472 }
6473
6474 total_size = sizeof(struct file_handle) + size;
6475 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6476 if (!target_fh) {
6477 return -TARGET_EFAULT;
6478 }
6479
6480 fh = g_memdup(target_fh, total_size);
6481 fh->handle_bytes = size;
6482 fh->handle_type = tswap32(target_fh->handle_type);
6483
6484 ret = get_errno(open_by_handle_at(mount_fd, fh,
6485 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6486
6487 g_free(fh);
6488
6489 unlock_user(target_fh, handle, total_size);
6490
6491 return ret;
6492}
6493#endif
6494
6495#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6496
6497static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6498{
6499 int host_flags;
6500 target_sigset_t *target_mask;
6501 sigset_t host_mask;
6502 abi_long ret;
6503
6504 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6505 return -TARGET_EINVAL;
6506 }
6507 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6508 return -TARGET_EFAULT;
6509 }
6510
6511 target_to_host_sigset(&host_mask, target_mask);
6512
6513 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6514
6515 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6516 if (ret >= 0) {
6517 fd_trans_register(ret, &target_signalfd_trans);
6518 }
6519
6520 unlock_user_struct(target_mask, mask, 0);
6521
6522 return ret;
6523}
6524#endif
6525
6526
6527
6528int host_to_target_waitstatus(int status)
6529{
6530 if (WIFSIGNALED(status)) {
6531 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6532 }
6533 if (WIFSTOPPED(status)) {
6534 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6535 | (status & 0xff);
6536 }
6537 return status;
6538}
6539
6540static int open_self_cmdline(void *cpu_env, int fd)
6541{
6542 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6543 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
6544 int i;
6545
6546 for (i = 0; i < bprm->argc; i++) {
6547 size_t len = strlen(bprm->argv[i]) + 1;
6548
6549 if (write(fd, bprm->argv[i], len) != len) {
6550 return -1;
6551 }
6552 }
6553
6554 return 0;
6555}
6556
6557static int open_self_maps(void *cpu_env, int fd)
6558{
6559 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6560 TaskState *ts = cpu->opaque;
6561 FILE *fp;
6562 char *line = NULL;
6563 size_t len = 0;
6564 ssize_t read;
6565
6566 fp = fopen("/proc/self/maps", "r");
6567 if (fp == NULL) {
6568 return -1;
6569 }
6570
6571 while ((read = getline(&line, &len, fp)) != -1) {
6572 int fields, dev_maj, dev_min, inode;
6573 uint64_t min, max, offset;
6574 char flag_r, flag_w, flag_x, flag_p;
6575 char path[512] = "";
6576 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6577 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6578 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6579
6580 if ((fields < 10) || (fields > 11)) {
6581 continue;
6582 }
6583 if (h2g_valid(min)) {
6584 int flags = page_get_flags(h2g(min));
6585 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1;
6586 if (page_check_range(h2g(min), max - min, flags) == -1) {
6587 continue;
6588 }
6589 if (h2g(min) == ts->info->stack_limit) {
6590 pstrcpy(path, sizeof(path), " [stack]");
6591 }
6592 dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
6593 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
6594 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
6595 flag_x, flag_p, offset, dev_maj, dev_min, inode,
6596 path[0] ? " " : "", path);
6597 }
6598 }
6599
6600 free(line);
6601 fclose(fp);
6602
6603 return 0;
6604}
6605
6606static int open_self_stat(void *cpu_env, int fd)
6607{
6608 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6609 TaskState *ts = cpu->opaque;
6610 abi_ulong start_stack = ts->info->start_stack;
6611 int i;
6612
6613 for (i = 0; i < 44; i++) {
6614 char buf[128];
6615 int len;
6616 uint64_t val = 0;
6617
6618 if (i == 0) {
6619
6620 val = getpid();
6621 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6622 } else if (i == 1) {
6623
6624 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6625 } else if (i == 27) {
6626
6627 val = start_stack;
6628 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6629 } else {
6630
6631 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
6632 }
6633
6634 len = strlen(buf);
6635 if (write(fd, buf, len) != len) {
6636 return -1;
6637 }
6638 }
6639
6640 return 0;
6641}
6642
6643static int open_self_auxv(void *cpu_env, int fd)
6644{
6645 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6646 TaskState *ts = cpu->opaque;
6647 abi_ulong auxv = ts->info->saved_auxv;
6648 abi_ulong len = ts->info->auxv_len;
6649 char *ptr;
6650
6651
6652
6653
6654
6655 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6656 if (ptr != NULL) {
6657 while (len > 0) {
6658 ssize_t r;
6659 r = write(fd, ptr, len);
6660 if (r <= 0) {
6661 break;
6662 }
6663 len -= r;
6664 ptr += r;
6665 }
6666 lseek(fd, 0, SEEK_SET);
6667 unlock_user(ptr, auxv, len);
6668 }
6669
6670 return 0;
6671}
6672
6673static int is_proc_myself(const char *filename, const char *entry)
6674{
6675 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6676 filename += strlen("/proc/");
6677 if (!strncmp(filename, "self/", strlen("self/"))) {
6678 filename += strlen("self/");
6679 } else if (*filename >= '1' && *filename <= '9') {
6680 char myself[80];
6681 snprintf(myself, sizeof(myself), "%d/", getpid());
6682 if (!strncmp(filename, myself, strlen(myself))) {
6683 filename += strlen(myself);
6684 } else {
6685 return 0;
6686 }
6687 } else {
6688 return 0;
6689 }
6690 if (!strcmp(filename, entry)) {
6691 return 1;
6692 }
6693 }
6694 return 0;
6695}
6696
6697#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6698static int is_proc(const char *filename, const char *entry)
6699{
6700 return strcmp(filename, entry) == 0;
6701}
6702
6703static int open_net_route(void *cpu_env, int fd)
6704{
6705 FILE *fp;
6706 char *line = NULL;
6707 size_t len = 0;
6708 ssize_t read;
6709
6710 fp = fopen("/proc/net/route", "r");
6711 if (fp == NULL) {
6712 return -1;
6713 }
6714
6715
6716
6717 read = getline(&line, &len, fp);
6718 dprintf(fd, "%s", line);
6719
6720
6721
6722 while ((read = getline(&line, &len, fp)) != -1) {
6723 char iface[16];
6724 uint32_t dest, gw, mask;
6725 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
6726 sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6727 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
6728 &mask, &mtu, &window, &irtt);
6729 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6730 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
6731 metric, tswap32(mask), mtu, window, irtt);
6732 }
6733
6734 free(line);
6735 fclose(fp);
6736
6737 return 0;
6738}
6739#endif
6740
6741static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
6742{
6743 struct fake_open {
6744 const char *filename;
6745 int (*fill)(void *cpu_env, int fd);
6746 int (*cmp)(const char *s1, const char *s2);
6747 };
6748 const struct fake_open *fake_open;
6749 static const struct fake_open fakes[] = {
6750 { "maps", open_self_maps, is_proc_myself },
6751 { "stat", open_self_stat, is_proc_myself },
6752 { "auxv", open_self_auxv, is_proc_myself },
6753 { "cmdline", open_self_cmdline, is_proc_myself },
6754#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6755 { "/proc/net/route", open_net_route, is_proc },
6756#endif
6757 { NULL, NULL, NULL }
6758 };
6759
6760 if (is_proc_myself(pathname, "exe")) {
6761 int execfd = qemu_getauxval(AT_EXECFD);
6762 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
6763 }
6764
6765 for (fake_open = fakes; fake_open->filename; fake_open++) {
6766 if (fake_open->cmp(pathname, fake_open->filename)) {
6767 break;
6768 }
6769 }
6770
6771 if (fake_open->filename) {
6772 const char *tmpdir;
6773 char filename[PATH_MAX];
6774 int fd, r;
6775
6776
6777 tmpdir = getenv("TMPDIR");
6778 if (!tmpdir)
6779 tmpdir = "/tmp";
6780 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
6781 fd = mkstemp(filename);
6782 if (fd < 0) {
6783 return fd;
6784 }
6785 unlink(filename);
6786
6787 if ((r = fake_open->fill(cpu_env, fd))) {
6788 int e = errno;
6789 close(fd);
6790 errno = e;
6791 return r;
6792 }
6793 lseek(fd, 0, SEEK_SET);
6794
6795 return fd;
6796 }
6797
6798 return safe_openat(dirfd, path(pathname), flags, mode);
6799}
6800
6801#define TIMER_MAGIC 0x0caf0000
6802#define TIMER_MAGIC_MASK 0xffff0000
6803
6804
6805static target_timer_t get_timer_id(abi_long arg)
6806{
6807 target_timer_t timerid = arg;
6808
6809 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
6810 return -TARGET_EINVAL;
6811 }
6812
6813 timerid &= 0xffff;
6814
6815 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
6816 return -TARGET_EINVAL;
6817 }
6818
6819 return timerid;
6820}
6821
6822static int target_to_host_cpu_mask(unsigned long *host_mask,
6823 size_t host_size,
6824 abi_ulong target_addr,
6825 size_t target_size)
6826{
6827 unsigned target_bits = sizeof(abi_ulong) * 8;
6828 unsigned host_bits = sizeof(*host_mask) * 8;
6829 abi_ulong *target_mask;
6830 unsigned i, j;
6831
6832 assert(host_size >= target_size);
6833
6834 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
6835 if (!target_mask) {
6836 return -TARGET_EFAULT;
6837 }
6838 memset(host_mask, 0, host_size);
6839
6840 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6841 unsigned bit = i * target_bits;
6842 abi_ulong val;
6843
6844 __get_user(val, &target_mask[i]);
6845 for (j = 0; j < target_bits; j++, bit++) {
6846 if (val & (1UL << j)) {
6847 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
6848 }
6849 }
6850 }
6851
6852 unlock_user(target_mask, target_addr, 0);
6853 return 0;
6854}
6855
6856static int host_to_target_cpu_mask(const unsigned long *host_mask,
6857 size_t host_size,
6858 abi_ulong target_addr,
6859 size_t target_size)
6860{
6861 unsigned target_bits = sizeof(abi_ulong) * 8;
6862 unsigned host_bits = sizeof(*host_mask) * 8;
6863 abi_ulong *target_mask;
6864 unsigned i, j;
6865
6866 assert(host_size >= target_size);
6867
6868 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
6869 if (!target_mask) {
6870 return -TARGET_EFAULT;
6871 }
6872
6873 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6874 unsigned bit = i * target_bits;
6875 abi_ulong val = 0;
6876
6877 for (j = 0; j < target_bits; j++, bit++) {
6878 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
6879 val |= 1UL << j;
6880 }
6881 }
6882 __put_user(val, &target_mask[i]);
6883 }
6884
6885 unlock_user(target_mask, target_addr, target_size);
6886 return 0;
6887}
6888
6889
6890
6891
6892
6893
6894static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
6895 abi_long arg2, abi_long arg3, abi_long arg4,
6896 abi_long arg5, abi_long arg6, abi_long arg7,
6897 abi_long arg8)
6898{
6899 CPUState *cpu = ENV_GET_CPU(cpu_env);
6900 abi_long ret;
6901#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
6902 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
6903 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
6904 struct stat st;
6905#endif
6906#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
6907 || defined(TARGET_NR_fstatfs)
6908 struct statfs stfs;
6909#endif
6910 void *p;
6911
6912 switch(num) {
6913 case TARGET_NR_exit:
6914
6915
6916
6917
6918
6919 if (block_signals()) {
6920 return -TARGET_ERESTARTSYS;
6921 }
6922
6923 cpu_list_lock();
6924
6925 if (CPU_NEXT(first_cpu)) {
6926 TaskState *ts;
6927
6928
6929 QTAILQ_REMOVE_RCU(&cpus, cpu, node);
6930
6931 cpu_list_unlock();
6932
6933 ts = cpu->opaque;
6934 if (ts->child_tidptr) {
6935 put_user_u32(0, ts->child_tidptr);
6936 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
6937 NULL, NULL, 0);
6938 }
6939 thread_cpu = NULL;
6940 object_unref(OBJECT(cpu));
6941 g_free(ts);
6942 rcu_unregister_thread();
6943 pthread_exit(NULL);
6944 }
6945
6946 cpu_list_unlock();
6947 preexit_cleanup(cpu_env, arg1);
6948 _exit(arg1);
6949 return 0;
6950 case TARGET_NR_read:
6951 if (arg3 == 0) {
6952 return 0;
6953 } else {
6954 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6955 return -TARGET_EFAULT;
6956 ret = get_errno(safe_read(arg1, p, arg3));
6957 if (ret >= 0 &&
6958 fd_trans_host_to_target_data(arg1)) {
6959 ret = fd_trans_host_to_target_data(arg1)(p, ret);
6960 }
6961 unlock_user(p, arg2, ret);
6962 }
6963 return ret;
6964 case TARGET_NR_write:
6965 if (arg2 == 0 && arg3 == 0) {
6966 return get_errno(safe_write(arg1, 0, 0));
6967 }
6968 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6969 return -TARGET_EFAULT;
6970 if (fd_trans_target_to_host_data(arg1)) {
6971 void *copy = g_malloc(arg3);
6972 memcpy(copy, p, arg3);
6973 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
6974 if (ret >= 0) {
6975 ret = get_errno(safe_write(arg1, copy, ret));
6976 }
6977 g_free(copy);
6978 } else {
6979 ret = get_errno(safe_write(arg1, p, arg3));
6980 }
6981 unlock_user(p, arg2, 0);
6982 return ret;
6983
6984#ifdef TARGET_NR_open
6985 case TARGET_NR_open:
6986 if (!(p = lock_user_string(arg1)))
6987 return -TARGET_EFAULT;
6988 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
6989 target_to_host_bitmask(arg2, fcntl_flags_tbl),
6990 arg3));
6991 fd_trans_unregister(ret);
6992 unlock_user(p, arg1, 0);
6993 return ret;
6994#endif
6995 case TARGET_NR_openat:
6996 if (!(p = lock_user_string(arg2)))
6997 return -TARGET_EFAULT;
6998 ret = get_errno(do_openat(cpu_env, arg1, p,
6999 target_to_host_bitmask(arg3, fcntl_flags_tbl),
7000 arg4));
7001 fd_trans_unregister(ret);
7002 unlock_user(p, arg2, 0);
7003 return ret;
7004#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7005 case TARGET_NR_name_to_handle_at:
7006 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
7007 return ret;
7008#endif
7009#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7010 case TARGET_NR_open_by_handle_at:
7011 ret = do_open_by_handle_at(arg1, arg2, arg3);
7012 fd_trans_unregister(ret);
7013 return ret;
7014#endif
7015 case TARGET_NR_close:
7016 fd_trans_unregister(arg1);
7017 return get_errno(close(arg1));
7018
7019 case TARGET_NR_brk:
7020 return do_brk(arg1);
7021#ifdef TARGET_NR_fork
7022 case TARGET_NR_fork:
7023 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
7024#endif
7025#ifdef TARGET_NR_waitpid
7026 case TARGET_NR_waitpid:
7027 {
7028 int status;
7029 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
7030 if (!is_error(ret) && arg2 && ret
7031 && put_user_s32(host_to_target_waitstatus(status), arg2))
7032 return -TARGET_EFAULT;
7033 }
7034 return ret;
7035#endif
7036#ifdef TARGET_NR_waitid
7037 case TARGET_NR_waitid:
7038 {
7039 siginfo_t info;
7040 info.si_pid = 0;
7041 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
7042 if (!is_error(ret) && arg3 && info.si_pid != 0) {
7043 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
7044 return -TARGET_EFAULT;
7045 host_to_target_siginfo(p, &info);
7046 unlock_user(p, arg3, sizeof(target_siginfo_t));
7047 }
7048 }
7049 return ret;
7050#endif
7051#ifdef TARGET_NR_creat
7052 case TARGET_NR_creat:
7053 if (!(p = lock_user_string(arg1)))
7054 return -TARGET_EFAULT;
7055 ret = get_errno(creat(p, arg2));
7056 fd_trans_unregister(ret);
7057 unlock_user(p, arg1, 0);
7058 return ret;
7059#endif
7060#ifdef TARGET_NR_link
7061 case TARGET_NR_link:
7062 {
7063 void * p2;
7064 p = lock_user_string(arg1);
7065 p2 = lock_user_string(arg2);
7066 if (!p || !p2)
7067 ret = -TARGET_EFAULT;
7068 else
7069 ret = get_errno(link(p, p2));
7070 unlock_user(p2, arg2, 0);
7071 unlock_user(p, arg1, 0);
7072 }
7073 return ret;
7074#endif
7075#if defined(TARGET_NR_linkat)
7076 case TARGET_NR_linkat:
7077 {
7078 void * p2 = NULL;
7079 if (!arg2 || !arg4)
7080 return -TARGET_EFAULT;
7081 p = lock_user_string(arg2);
7082 p2 = lock_user_string(arg4);
7083 if (!p || !p2)
7084 ret = -TARGET_EFAULT;
7085 else
7086 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
7087 unlock_user(p, arg2, 0);
7088 unlock_user(p2, arg4, 0);
7089 }
7090 return ret;
7091#endif
7092#ifdef TARGET_NR_unlink
7093 case TARGET_NR_unlink:
7094 if (!(p = lock_user_string(arg1)))
7095 return -TARGET_EFAULT;
7096 ret = get_errno(unlink(p));
7097 unlock_user(p, arg1, 0);
7098 return ret;
7099#endif
7100#if defined(TARGET_NR_unlinkat)
7101 case TARGET_NR_unlinkat:
7102 if (!(p = lock_user_string(arg2)))
7103 return -TARGET_EFAULT;
7104 ret = get_errno(unlinkat(arg1, p, arg3));
7105 unlock_user(p, arg2, 0);
7106 return ret;
7107#endif
7108 case TARGET_NR_execve:
7109 {
7110 char **argp, **envp;
7111 int argc, envc;
7112 abi_ulong gp;
7113 abi_ulong guest_argp;
7114 abi_ulong guest_envp;
7115 abi_ulong addr;
7116 char **q;
7117 int total_size = 0;
7118
7119 argc = 0;
7120 guest_argp = arg2;
7121 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
7122 if (get_user_ual(addr, gp))
7123 return -TARGET_EFAULT;
7124 if (!addr)
7125 break;
7126 argc++;
7127 }
7128 envc = 0;
7129 guest_envp = arg3;
7130 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
7131 if (get_user_ual(addr, gp))
7132 return -TARGET_EFAULT;
7133 if (!addr)
7134 break;
7135 envc++;
7136 }
7137
7138 argp = g_new0(char *, argc + 1);
7139 envp = g_new0(char *, envc + 1);
7140
7141 for (gp = guest_argp, q = argp; gp;
7142 gp += sizeof(abi_ulong), q++) {
7143 if (get_user_ual(addr, gp))
7144 goto execve_efault;
7145 if (!addr)
7146 break;
7147 if (!(*q = lock_user_string(addr)))
7148 goto execve_efault;
7149 total_size += strlen(*q) + 1;
7150 }
7151 *q = NULL;
7152
7153 for (gp = guest_envp, q = envp; gp;
7154 gp += sizeof(abi_ulong), q++) {
7155 if (get_user_ual(addr, gp))
7156 goto execve_efault;
7157 if (!addr)
7158 break;
7159 if (!(*q = lock_user_string(addr)))
7160 goto execve_efault;
7161 total_size += strlen(*q) + 1;
7162 }
7163 *q = NULL;
7164
7165 if (!(p = lock_user_string(arg1)))
7166 goto execve_efault;
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177 ret = get_errno(safe_execve(p, argp, envp));
7178 unlock_user(p, arg1, 0);
7179
7180 goto execve_end;
7181
7182 execve_efault:
7183 ret = -TARGET_EFAULT;
7184
7185 execve_end:
7186 for (gp = guest_argp, q = argp; *q;
7187 gp += sizeof(abi_ulong), q++) {
7188 if (get_user_ual(addr, gp)
7189 || !addr)
7190 break;
7191 unlock_user(*q, addr, 0);
7192 }
7193 for (gp = guest_envp, q = envp; *q;
7194 gp += sizeof(abi_ulong), q++) {
7195 if (get_user_ual(addr, gp)
7196 || !addr)
7197 break;
7198 unlock_user(*q, addr, 0);
7199 }
7200
7201 g_free(argp);
7202 g_free(envp);
7203 }
7204 return ret;
7205 case TARGET_NR_chdir:
7206 if (!(p = lock_user_string(arg1)))
7207 return -TARGET_EFAULT;
7208 ret = get_errno(chdir(p));
7209 unlock_user(p, arg1, 0);
7210 return ret;
7211#ifdef TARGET_NR_time
7212 case TARGET_NR_time:
7213 {
7214 time_t host_time;
7215 ret = get_errno(time(&host_time));
7216 if (!is_error(ret)
7217 && arg1
7218 && put_user_sal(host_time, arg1))
7219 return -TARGET_EFAULT;
7220 }
7221 return ret;
7222#endif
7223#ifdef TARGET_NR_mknod
7224 case TARGET_NR_mknod:
7225 if (!(p = lock_user_string(arg1)))
7226 return -TARGET_EFAULT;
7227 ret = get_errno(mknod(p, arg2, arg3));
7228 unlock_user(p, arg1, 0);
7229 return ret;
7230#endif
7231#if defined(TARGET_NR_mknodat)
7232 case TARGET_NR_mknodat:
7233 if (!(p = lock_user_string(arg2)))
7234 return -TARGET_EFAULT;
7235 ret = get_errno(mknodat(arg1, p, arg3, arg4));
7236 unlock_user(p, arg2, 0);
7237 return ret;
7238#endif
7239#ifdef TARGET_NR_chmod
7240 case TARGET_NR_chmod:
7241 if (!(p = lock_user_string(arg1)))
7242 return -TARGET_EFAULT;
7243 ret = get_errno(chmod(p, arg2));
7244 unlock_user(p, arg1, 0);
7245 return ret;
7246#endif
7247#ifdef TARGET_NR_lseek
7248 case TARGET_NR_lseek:
7249 return get_errno(lseek(arg1, arg2, arg3));
7250#endif
7251#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
7252
7253 case TARGET_NR_getxpid:
7254 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
7255 return get_errno(getpid());
7256#endif
7257#ifdef TARGET_NR_getpid
7258 case TARGET_NR_getpid:
7259 return get_errno(getpid());
7260#endif
7261 case TARGET_NR_mount:
7262 {
7263
7264 void *p2, *p3;
7265
7266 if (arg1) {
7267 p = lock_user_string(arg1);
7268 if (!p) {
7269 return -TARGET_EFAULT;
7270 }
7271 } else {
7272 p = NULL;
7273 }
7274
7275 p2 = lock_user_string(arg2);
7276 if (!p2) {
7277 if (arg1) {
7278 unlock_user(p, arg1, 0);
7279 }
7280 return -TARGET_EFAULT;
7281 }
7282
7283 if (arg3) {
7284 p3 = lock_user_string(arg3);
7285 if (!p3) {
7286 if (arg1) {
7287 unlock_user(p, arg1, 0);
7288 }
7289 unlock_user(p2, arg2, 0);
7290 return -TARGET_EFAULT;
7291 }
7292 } else {
7293 p3 = NULL;
7294 }
7295
7296
7297
7298
7299
7300 if (!arg5) {
7301 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7302 } else {
7303 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7304 }
7305 ret = get_errno(ret);
7306
7307 if (arg1) {
7308 unlock_user(p, arg1, 0);
7309 }
7310 unlock_user(p2, arg2, 0);
7311 if (arg3) {
7312 unlock_user(p3, arg3, 0);
7313 }
7314 }
7315 return ret;
7316#ifdef TARGET_NR_umount
7317 case TARGET_NR_umount:
7318 if (!(p = lock_user_string(arg1)))
7319 return -TARGET_EFAULT;
7320 ret = get_errno(umount(p));
7321 unlock_user(p, arg1, 0);
7322 return ret;
7323#endif
7324#ifdef TARGET_NR_stime
7325 case TARGET_NR_stime:
7326 {
7327 time_t host_time;
7328 if (get_user_sal(host_time, arg1))
7329 return -TARGET_EFAULT;
7330 return get_errno(stime(&host_time));
7331 }
7332#endif
7333#ifdef TARGET_NR_alarm
7334 case TARGET_NR_alarm:
7335 return alarm(arg1);
7336#endif
7337#ifdef TARGET_NR_pause
7338 case TARGET_NR_pause:
7339 if (!block_signals()) {
7340 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7341 }
7342 return -TARGET_EINTR;
7343#endif
7344#ifdef TARGET_NR_utime
7345 case TARGET_NR_utime:
7346 {
7347 struct utimbuf tbuf, *host_tbuf;
7348 struct target_utimbuf *target_tbuf;
7349 if (arg2) {
7350 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
7351 return -TARGET_EFAULT;
7352 tbuf.actime = tswapal(target_tbuf->actime);
7353 tbuf.modtime = tswapal(target_tbuf->modtime);
7354 unlock_user_struct(target_tbuf, arg2, 0);
7355 host_tbuf = &tbuf;
7356 } else {
7357 host_tbuf = NULL;
7358 }
7359 if (!(p = lock_user_string(arg1)))
7360 return -TARGET_EFAULT;
7361 ret = get_errno(utime(p, host_tbuf));
7362 unlock_user(p, arg1, 0);
7363 }
7364 return ret;
7365#endif
7366#ifdef TARGET_NR_utimes
7367 case TARGET_NR_utimes:
7368 {
7369 struct timeval *tvp, tv[2];
7370 if (arg2) {
7371 if (copy_from_user_timeval(&tv[0], arg2)
7372 || copy_from_user_timeval(&tv[1],
7373 arg2 + sizeof(struct target_timeval)))
7374 return -TARGET_EFAULT;
7375 tvp = tv;
7376 } else {
7377 tvp = NULL;
7378 }
7379 if (!(p = lock_user_string(arg1)))
7380 return -TARGET_EFAULT;
7381 ret = get_errno(utimes(p, tvp));
7382 unlock_user(p, arg1, 0);
7383 }
7384 return ret;
7385#endif
7386#if defined(TARGET_NR_futimesat)
7387 case TARGET_NR_futimesat:
7388 {
7389 struct timeval *tvp, tv[2];
7390 if (arg3) {
7391 if (copy_from_user_timeval(&tv[0], arg3)
7392 || copy_from_user_timeval(&tv[1],
7393 arg3 + sizeof(struct target_timeval)))
7394 return -TARGET_EFAULT;
7395 tvp = tv;
7396 } else {
7397 tvp = NULL;
7398 }
7399 if (!(p = lock_user_string(arg2))) {
7400 return -TARGET_EFAULT;
7401 }
7402 ret = get_errno(futimesat(arg1, path(p), tvp));
7403 unlock_user(p, arg2, 0);
7404 }
7405 return ret;
7406#endif
7407#ifdef TARGET_NR_access
7408 case TARGET_NR_access:
7409 if (!(p = lock_user_string(arg1))) {
7410 return -TARGET_EFAULT;
7411 }
7412 ret = get_errno(access(path(p), arg2));
7413 unlock_user(p, arg1, 0);
7414 return ret;
7415#endif
7416#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7417 case TARGET_NR_faccessat:
7418 if (!(p = lock_user_string(arg2))) {
7419 return -TARGET_EFAULT;
7420 }
7421 ret = get_errno(faccessat(arg1, p, arg3, 0));
7422 unlock_user(p, arg2, 0);
7423 return ret;
7424#endif
7425#ifdef TARGET_NR_nice
7426 case TARGET_NR_nice:
7427 return get_errno(nice(arg1));
7428#endif
7429 case TARGET_NR_sync:
7430 sync();
7431 return 0;
7432#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
7433 case TARGET_NR_syncfs:
7434 return get_errno(syncfs(arg1));
7435#endif
7436 case TARGET_NR_kill:
7437 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
7438#ifdef TARGET_NR_rename
7439 case TARGET_NR_rename:
7440 {
7441 void *p2;
7442 p = lock_user_string(arg1);
7443 p2 = lock_user_string(arg2);
7444 if (!p || !p2)
7445 ret = -TARGET_EFAULT;
7446 else
7447 ret = get_errno(rename(p, p2));
7448 unlock_user(p2, arg2, 0);
7449 unlock_user(p, arg1, 0);
7450 }
7451 return ret;
7452#endif
7453#if defined(TARGET_NR_renameat)
7454 case TARGET_NR_renameat:
7455 {
7456 void *p2;
7457 p = lock_user_string(arg2);
7458 p2 = lock_user_string(arg4);
7459 if (!p || !p2)
7460 ret = -TARGET_EFAULT;
7461 else
7462 ret = get_errno(renameat(arg1, p, arg3, p2));
7463 unlock_user(p2, arg4, 0);
7464 unlock_user(p, arg2, 0);
7465 }
7466 return ret;
7467#endif
7468#if defined(TARGET_NR_renameat2)
7469 case TARGET_NR_renameat2:
7470 {
7471 void *p2;
7472 p = lock_user_string(arg2);
7473 p2 = lock_user_string(arg4);
7474 if (!p || !p2) {
7475 ret = -TARGET_EFAULT;
7476 } else {
7477 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
7478 }
7479 unlock_user(p2, arg4, 0);
7480 unlock_user(p, arg2, 0);
7481 }
7482 return ret;
7483#endif
7484#ifdef TARGET_NR_mkdir
7485 case TARGET_NR_mkdir:
7486 if (!(p = lock_user_string(arg1)))
7487 return -TARGET_EFAULT;
7488 ret = get_errno(mkdir(p, arg2));
7489 unlock_user(p, arg1, 0);
7490 return ret;
7491#endif
7492#if defined(TARGET_NR_mkdirat)
7493 case TARGET_NR_mkdirat:
7494 if (!(p = lock_user_string(arg2)))
7495 return -TARGET_EFAULT;
7496 ret = get_errno(mkdirat(arg1, p, arg3));
7497 unlock_user(p, arg2, 0);
7498 return ret;
7499#endif
7500#ifdef TARGET_NR_rmdir
7501 case TARGET_NR_rmdir:
7502 if (!(p = lock_user_string(arg1)))
7503 return -TARGET_EFAULT;
7504 ret = get_errno(rmdir(p));
7505 unlock_user(p, arg1, 0);
7506 return ret;
7507#endif
7508 case TARGET_NR_dup:
7509 ret = get_errno(dup(arg1));
7510 if (ret >= 0) {
7511 fd_trans_dup(arg1, ret);
7512 }
7513 return ret;
7514#ifdef TARGET_NR_pipe
7515 case TARGET_NR_pipe:
7516 return do_pipe(cpu_env, arg1, 0, 0);
7517#endif
7518#ifdef TARGET_NR_pipe2
7519 case TARGET_NR_pipe2:
7520 return do_pipe(cpu_env, arg1,
7521 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
7522#endif
7523 case TARGET_NR_times:
7524 {
7525 struct target_tms *tmsp;
7526 struct tms tms;
7527 ret = get_errno(times(&tms));
7528 if (arg1) {
7529 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7530 if (!tmsp)
7531 return -TARGET_EFAULT;
7532 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7533 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7534 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7535 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
7536 }
7537 if (!is_error(ret))
7538 ret = host_to_target_clock_t(ret);
7539 }
7540 return ret;
7541 case TARGET_NR_acct:
7542 if (arg1 == 0) {
7543 ret = get_errno(acct(NULL));
7544 } else {
7545 if (!(p = lock_user_string(arg1))) {
7546 return -TARGET_EFAULT;
7547 }
7548 ret = get_errno(acct(path(p)));
7549 unlock_user(p, arg1, 0);
7550 }
7551 return ret;
7552#ifdef TARGET_NR_umount2
7553 case TARGET_NR_umount2:
7554 if (!(p = lock_user_string(arg1)))
7555 return -TARGET_EFAULT;
7556 ret = get_errno(umount2(p, arg2));
7557 unlock_user(p, arg1, 0);
7558 return ret;
7559#endif
7560 case TARGET_NR_ioctl:
7561 return do_ioctl(arg1, arg2, arg3);
7562#ifdef TARGET_NR_fcntl
7563 case TARGET_NR_fcntl:
7564 return do_fcntl(arg1, arg2, arg3);
7565#endif
7566 case TARGET_NR_setpgid:
7567 return get_errno(setpgid(arg1, arg2));
7568 case TARGET_NR_umask:
7569 return get_errno(umask(arg1));
7570 case TARGET_NR_chroot:
7571 if (!(p = lock_user_string(arg1)))
7572 return -TARGET_EFAULT;
7573 ret = get_errno(chroot(p));
7574 unlock_user(p, arg1, 0);
7575 return ret;
7576#ifdef TARGET_NR_dup2
7577 case TARGET_NR_dup2:
7578 ret = get_errno(dup2(arg1, arg2));
7579 if (ret >= 0) {
7580 fd_trans_dup(arg1, arg2);
7581 }
7582 return ret;
7583#endif
7584#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7585 case TARGET_NR_dup3:
7586 {
7587 int host_flags;
7588
7589 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
7590 return -EINVAL;
7591 }
7592 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
7593 ret = get_errno(dup3(arg1, arg2, host_flags));
7594 if (ret >= 0) {
7595 fd_trans_dup(arg1, arg2);
7596 }
7597 return ret;
7598 }
7599#endif
7600#ifdef TARGET_NR_getppid
7601 case TARGET_NR_getppid:
7602 return get_errno(getppid());
7603#endif
7604#ifdef TARGET_NR_getpgrp
7605 case TARGET_NR_getpgrp:
7606 return get_errno(getpgrp());
7607#endif
7608 case TARGET_NR_setsid:
7609 return get_errno(setsid());
7610#ifdef TARGET_NR_sigaction
7611 case TARGET_NR_sigaction:
7612 {
7613#if defined(TARGET_ALPHA)
7614 struct target_sigaction act, oact, *pact = 0;
7615 struct target_old_sigaction *old_act;
7616 if (arg2) {
7617 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7618 return -TARGET_EFAULT;
7619 act._sa_handler = old_act->_sa_handler;
7620 target_siginitset(&act.sa_mask, old_act->sa_mask);
7621 act.sa_flags = old_act->sa_flags;
7622 act.sa_restorer = 0;
7623 unlock_user_struct(old_act, arg2, 0);
7624 pact = &act;
7625 }
7626 ret = get_errno(do_sigaction(arg1, pact, &oact));
7627 if (!is_error(ret) && arg3) {
7628 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7629 return -TARGET_EFAULT;
7630 old_act->_sa_handler = oact._sa_handler;
7631 old_act->sa_mask = oact.sa_mask.sig[0];
7632 old_act->sa_flags = oact.sa_flags;
7633 unlock_user_struct(old_act, arg3, 1);
7634 }
7635#elif defined(TARGET_MIPS)
7636 struct target_sigaction act, oact, *pact, *old_act;
7637
7638 if (arg2) {
7639 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7640 return -TARGET_EFAULT;
7641 act._sa_handler = old_act->_sa_handler;
7642 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7643 act.sa_flags = old_act->sa_flags;
7644 unlock_user_struct(old_act, arg2, 0);
7645 pact = &act;
7646 } else {
7647 pact = NULL;
7648 }
7649
7650 ret = get_errno(do_sigaction(arg1, pact, &oact));
7651
7652 if (!is_error(ret) && arg3) {
7653 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7654 return -TARGET_EFAULT;
7655 old_act->_sa_handler = oact._sa_handler;
7656 old_act->sa_flags = oact.sa_flags;
7657 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7658 old_act->sa_mask.sig[1] = 0;
7659 old_act->sa_mask.sig[2] = 0;
7660 old_act->sa_mask.sig[3] = 0;
7661 unlock_user_struct(old_act, arg3, 1);
7662 }
7663#else
7664 struct target_old_sigaction *old_act;
7665 struct target_sigaction act, oact, *pact;
7666 if (arg2) {
7667 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7668 return -TARGET_EFAULT;
7669 act._sa_handler = old_act->_sa_handler;
7670 target_siginitset(&act.sa_mask, old_act->sa_mask);
7671 act.sa_flags = old_act->sa_flags;
7672 act.sa_restorer = old_act->sa_restorer;
7673#ifdef TARGET_ARCH_HAS_KA_RESTORER
7674 act.ka_restorer = 0;
7675#endif
7676 unlock_user_struct(old_act, arg2, 0);
7677 pact = &act;
7678 } else {
7679 pact = NULL;
7680 }
7681 ret = get_errno(do_sigaction(arg1, pact, &oact));
7682 if (!is_error(ret) && arg3) {
7683 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7684 return -TARGET_EFAULT;
7685 old_act->_sa_handler = oact._sa_handler;
7686 old_act->sa_mask = oact.sa_mask.sig[0];
7687 old_act->sa_flags = oact.sa_flags;
7688 old_act->sa_restorer = oact.sa_restorer;
7689 unlock_user_struct(old_act, arg3, 1);
7690 }
7691#endif
7692 }
7693 return ret;
7694#endif
7695 case TARGET_NR_rt_sigaction:
7696 {
7697#if defined(TARGET_ALPHA)
7698
7699
7700
7701
7702
7703
7704
7705
7706 struct target_rt_sigaction *rt_act;
7707 struct target_sigaction act, oact, *pact = 0;
7708
7709 if (arg4 != sizeof(target_sigset_t)) {
7710 return -TARGET_EINVAL;
7711 }
7712 if (arg2) {
7713 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
7714 return -TARGET_EFAULT;
7715 act._sa_handler = rt_act->_sa_handler;
7716 act.sa_mask = rt_act->sa_mask;
7717 act.sa_flags = rt_act->sa_flags;
7718 act.sa_restorer = arg5;
7719 unlock_user_struct(rt_act, arg2, 0);
7720 pact = &act;
7721 }
7722 ret = get_errno(do_sigaction(arg1, pact, &oact));
7723 if (!is_error(ret) && arg3) {
7724 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
7725 return -TARGET_EFAULT;
7726 rt_act->_sa_handler = oact._sa_handler;
7727 rt_act->sa_mask = oact.sa_mask;
7728 rt_act->sa_flags = oact.sa_flags;
7729 unlock_user_struct(rt_act, arg3, 1);
7730 }
7731#else
7732#ifdef TARGET_SPARC
7733 target_ulong restorer = arg4;
7734 target_ulong sigsetsize = arg5;
7735#else
7736 target_ulong sigsetsize = arg4;
7737#endif
7738 struct target_sigaction *act;
7739 struct target_sigaction *oact;
7740
7741 if (sigsetsize != sizeof(target_sigset_t)) {
7742 return -TARGET_EINVAL;
7743 }
7744 if (arg2) {
7745 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
7746 return -TARGET_EFAULT;
7747 }
7748#ifdef TARGET_ARCH_HAS_KA_RESTORER
7749 act->ka_restorer = restorer;
7750#endif
7751 } else {
7752 act = NULL;
7753 }
7754 if (arg3) {
7755 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
7756 ret = -TARGET_EFAULT;
7757 goto rt_sigaction_fail;
7758 }
7759 } else
7760 oact = NULL;
7761 ret = get_errno(do_sigaction(arg1, act, oact));
7762 rt_sigaction_fail:
7763 if (act)
7764 unlock_user_struct(act, arg2, 0);
7765 if (oact)
7766 unlock_user_struct(oact, arg3, 1);
7767#endif
7768 }
7769 return ret;
7770#ifdef TARGET_NR_sgetmask
7771 case TARGET_NR_sgetmask:
7772 {
7773 sigset_t cur_set;
7774 abi_ulong target_set;
7775 ret = do_sigprocmask(0, NULL, &cur_set);
7776 if (!ret) {
7777 host_to_target_old_sigset(&target_set, &cur_set);
7778 ret = target_set;
7779 }
7780 }
7781 return ret;
7782#endif
7783#ifdef TARGET_NR_ssetmask
7784 case TARGET_NR_ssetmask:
7785 {
7786 sigset_t set, oset;
7787 abi_ulong target_set = arg1;
7788 target_to_host_old_sigset(&set, &target_set);
7789 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
7790 if (!ret) {
7791 host_to_target_old_sigset(&target_set, &oset);
7792 ret = target_set;
7793 }
7794 }
7795 return ret;
7796#endif
7797#ifdef TARGET_NR_sigprocmask
7798 case TARGET_NR_sigprocmask:
7799 {
7800#if defined(TARGET_ALPHA)
7801 sigset_t set, oldset;
7802 abi_ulong mask;
7803 int how;
7804
7805 switch (arg1) {
7806 case TARGET_SIG_BLOCK:
7807 how = SIG_BLOCK;
7808 break;
7809 case TARGET_SIG_UNBLOCK:
7810 how = SIG_UNBLOCK;
7811 break;
7812 case TARGET_SIG_SETMASK:
7813 how = SIG_SETMASK;
7814 break;
7815 default:
7816 return -TARGET_EINVAL;
7817 }
7818 mask = arg2;
7819 target_to_host_old_sigset(&set, &mask);
7820
7821 ret = do_sigprocmask(how, &set, &oldset);
7822 if (!is_error(ret)) {
7823 host_to_target_old_sigset(&mask, &oldset);
7824 ret = mask;
7825 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
7826 }
7827#else
7828 sigset_t set, oldset, *set_ptr;
7829 int how;
7830
7831 if (arg2) {
7832 switch (arg1) {
7833 case TARGET_SIG_BLOCK:
7834 how = SIG_BLOCK;
7835 break;
7836 case TARGET_SIG_UNBLOCK:
7837 how = SIG_UNBLOCK;
7838 break;
7839 case TARGET_SIG_SETMASK:
7840 how = SIG_SETMASK;
7841 break;
7842 default:
7843 return -TARGET_EINVAL;
7844 }
7845 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
7846 return -TARGET_EFAULT;
7847 target_to_host_old_sigset(&set, p);
7848 unlock_user(p, arg2, 0);
7849 set_ptr = &set;
7850 } else {
7851 how = 0;
7852 set_ptr = NULL;
7853 }
7854 ret = do_sigprocmask(how, set_ptr, &oldset);
7855 if (!is_error(ret) && arg3) {
7856 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
7857 return -TARGET_EFAULT;
7858 host_to_target_old_sigset(p, &oldset);
7859 unlock_user(p, arg3, sizeof(target_sigset_t));
7860 }
7861#endif
7862 }
7863 return ret;
7864#endif
7865 case TARGET_NR_rt_sigprocmask:
7866 {
7867 int how = arg1;
7868 sigset_t set, oldset, *set_ptr;
7869
7870 if (arg4 != sizeof(target_sigset_t)) {
7871 return -TARGET_EINVAL;
7872 }
7873
7874 if (arg2) {
7875 switch(how) {
7876 case TARGET_SIG_BLOCK:
7877 how = SIG_BLOCK;
7878 break;
7879 case TARGET_SIG_UNBLOCK:
7880 how = SIG_UNBLOCK;
7881 break;
7882 case TARGET_SIG_SETMASK:
7883 how = SIG_SETMASK;
7884 break;
7885 default:
7886 return -TARGET_EINVAL;
7887 }
7888 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
7889 return -TARGET_EFAULT;
7890 target_to_host_sigset(&set, p);
7891 unlock_user(p, arg2, 0);
7892 set_ptr = &set;
7893 } else {
7894 how = 0;
7895 set_ptr = NULL;
7896 }
7897 ret = do_sigprocmask(how, set_ptr, &oldset);
7898 if (!is_error(ret) && arg3) {
7899 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
7900 return -TARGET_EFAULT;
7901 host_to_target_sigset(p, &oldset);
7902 unlock_user(p, arg3, sizeof(target_sigset_t));
7903 }
7904 }
7905 return ret;
7906#ifdef TARGET_NR_sigpending
7907 case TARGET_NR_sigpending:
7908 {
7909 sigset_t set;
7910 ret = get_errno(sigpending(&set));
7911 if (!is_error(ret)) {
7912 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
7913 return -TARGET_EFAULT;
7914 host_to_target_old_sigset(p, &set);
7915 unlock_user(p, arg1, sizeof(target_sigset_t));
7916 }
7917 }
7918 return ret;
7919#endif
7920 case TARGET_NR_rt_sigpending:
7921 {
7922 sigset_t set;
7923
7924
7925
7926
7927
7928
7929 if (arg2 > sizeof(target_sigset_t)) {
7930 return -TARGET_EINVAL;
7931 }
7932
7933 ret = get_errno(sigpending(&set));
7934 if (!is_error(ret)) {
7935 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
7936 return -TARGET_EFAULT;
7937 host_to_target_sigset(p, &set);
7938 unlock_user(p, arg1, sizeof(target_sigset_t));
7939 }
7940 }
7941 return ret;
7942#ifdef TARGET_NR_sigsuspend
7943 case TARGET_NR_sigsuspend:
7944 {
7945 TaskState *ts = cpu->opaque;
7946#if defined(TARGET_ALPHA)
7947 abi_ulong mask = arg1;
7948 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
7949#else
7950 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
7951 return -TARGET_EFAULT;
7952 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
7953 unlock_user(p, arg1, 0);
7954#endif
7955 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
7956 SIGSET_T_SIZE));
7957 if (ret != -TARGET_ERESTARTSYS) {
7958 ts->in_sigsuspend = 1;
7959 }
7960 }
7961 return ret;
7962#endif
7963 case TARGET_NR_rt_sigsuspend:
7964 {
7965 TaskState *ts = cpu->opaque;
7966
7967 if (arg2 != sizeof(target_sigset_t)) {
7968 return -TARGET_EINVAL;
7969 }
7970 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
7971 return -TARGET_EFAULT;
7972 target_to_host_sigset(&ts->sigsuspend_mask, p);
7973 unlock_user(p, arg1, 0);
7974 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
7975 SIGSET_T_SIZE));
7976 if (ret != -TARGET_ERESTARTSYS) {
7977 ts->in_sigsuspend = 1;
7978 }
7979 }
7980 return ret;
7981 case TARGET_NR_rt_sigtimedwait:
7982 {
7983 sigset_t set;
7984 struct timespec uts, *puts;
7985 siginfo_t uinfo;
7986
7987 if (arg4 != sizeof(target_sigset_t)) {
7988 return -TARGET_EINVAL;
7989 }
7990
7991 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
7992 return -TARGET_EFAULT;
7993 target_to_host_sigset(&set, p);
7994 unlock_user(p, arg1, 0);
7995 if (arg3) {
7996 puts = &uts;
7997 target_to_host_timespec(puts, arg3);
7998 } else {
7999 puts = NULL;
8000 }
8001 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
8002 SIGSET_T_SIZE));
8003 if (!is_error(ret)) {
8004 if (arg2) {
8005 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
8006 0);
8007 if (!p) {
8008 return -TARGET_EFAULT;
8009 }
8010 host_to_target_siginfo(p, &uinfo);
8011 unlock_user(p, arg2, sizeof(target_siginfo_t));
8012 }
8013 ret = host_to_target_signal(ret);
8014 }
8015 }
8016 return ret;
8017 case TARGET_NR_rt_sigqueueinfo:
8018 {
8019 siginfo_t uinfo;
8020
8021 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
8022 if (!p) {
8023 return -TARGET_EFAULT;
8024 }
8025 target_to_host_siginfo(&uinfo, p);
8026 unlock_user(p, arg3, 0);
8027 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
8028 }
8029 return ret;
8030 case TARGET_NR_rt_tgsigqueueinfo:
8031 {
8032 siginfo_t uinfo;
8033
8034 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
8035 if (!p) {
8036 return -TARGET_EFAULT;
8037 }
8038 target_to_host_siginfo(&uinfo, p);
8039 unlock_user(p, arg4, 0);
8040 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
8041 }
8042 return ret;
8043#ifdef TARGET_NR_sigreturn
8044 case TARGET_NR_sigreturn:
8045 if (block_signals()) {
8046 return -TARGET_ERESTARTSYS;
8047 }
8048 return do_sigreturn(cpu_env);
8049#endif
8050 case TARGET_NR_rt_sigreturn:
8051 if (block_signals()) {
8052 return -TARGET_ERESTARTSYS;
8053 }
8054 return do_rt_sigreturn(cpu_env);
8055 case TARGET_NR_sethostname:
8056 if (!(p = lock_user_string(arg1)))
8057 return -TARGET_EFAULT;
8058 ret = get_errno(sethostname(p, arg2));
8059 unlock_user(p, arg1, 0);
8060 return ret;
8061#ifdef TARGET_NR_setrlimit
8062 case TARGET_NR_setrlimit:
8063 {
8064 int resource = target_to_host_resource(arg1);
8065 struct target_rlimit *target_rlim;
8066 struct rlimit rlim;
8067 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
8068 return -TARGET_EFAULT;
8069 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
8070 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
8071 unlock_user_struct(target_rlim, arg2, 0);
8072
8073
8074
8075
8076
8077
8078
8079
8080 if (resource != RLIMIT_AS &&
8081 resource != RLIMIT_DATA &&
8082 resource != RLIMIT_STACK) {
8083 return get_errno(setrlimit(resource, &rlim));
8084 } else {
8085 return 0;
8086 }
8087 }
8088#endif
8089#ifdef TARGET_NR_getrlimit
8090 case TARGET_NR_getrlimit:
8091 {
8092 int resource = target_to_host_resource(arg1);
8093 struct target_rlimit *target_rlim;
8094 struct rlimit rlim;
8095
8096 ret = get_errno(getrlimit(resource, &rlim));
8097 if (!is_error(ret)) {
8098 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
8099 return -TARGET_EFAULT;
8100 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
8101 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
8102 unlock_user_struct(target_rlim, arg2, 1);
8103 }
8104 }
8105 return ret;
8106#endif
8107 case TARGET_NR_getrusage:
8108 {
8109 struct rusage rusage;
8110 ret = get_errno(getrusage(arg1, &rusage));
8111 if (!is_error(ret)) {
8112 ret = host_to_target_rusage(arg2, &rusage);
8113 }
8114 }
8115 return ret;
8116 case TARGET_NR_gettimeofday:
8117 {
8118 struct timeval tv;
8119 ret = get_errno(gettimeofday(&tv, NULL));
8120 if (!is_error(ret)) {
8121 if (copy_to_user_timeval(arg1, &tv))
8122 return -TARGET_EFAULT;
8123 }
8124 }
8125 return ret;
8126 case TARGET_NR_settimeofday:
8127 {
8128 struct timeval tv, *ptv = NULL;
8129 struct timezone tz, *ptz = NULL;
8130
8131 if (arg1) {
8132 if (copy_from_user_timeval(&tv, arg1)) {
8133 return -TARGET_EFAULT;
8134 }
8135 ptv = &tv;
8136 }
8137
8138 if (arg2) {
8139 if (copy_from_user_timezone(&tz, arg2)) {
8140 return -TARGET_EFAULT;
8141 }
8142 ptz = &tz;
8143 }
8144
8145 return get_errno(settimeofday(ptv, ptz));
8146 }
8147#if defined(TARGET_NR_select)
8148 case TARGET_NR_select:
8149#if defined(TARGET_WANT_NI_OLD_SELECT)
8150
8151
8152
8153 ret = -TARGET_ENOSYS;
8154#elif defined(TARGET_WANT_OLD_SYS_SELECT)
8155 ret = do_old_select(arg1);
8156#else
8157 ret = do_select(arg1, arg2, arg3, arg4, arg5);
8158#endif
8159 return ret;
8160#endif
8161#ifdef TARGET_NR_pselect6
8162 case TARGET_NR_pselect6:
8163 {
8164 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
8165 fd_set rfds, wfds, efds;
8166 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
8167 struct timespec ts, *ts_ptr;
8168
8169
8170
8171
8172
8173 sigset_t set;
8174 struct {
8175 sigset_t *set;
8176 size_t size;
8177 } sig, *sig_ptr;
8178
8179 abi_ulong arg_sigset, arg_sigsize, *arg7;
8180 target_sigset_t *target_sigset;
8181
8182 n = arg1;
8183 rfd_addr = arg2;
8184 wfd_addr = arg3;
8185 efd_addr = arg4;
8186 ts_addr = arg5;
8187
8188 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
8189 if (ret) {
8190 return ret;
8191 }
8192 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
8193 if (ret) {
8194 return ret;
8195 }
8196 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
8197 if (ret) {
8198 return ret;
8199 }
8200
8201
8202
8203
8204
8205 if (ts_addr) {
8206 if (target_to_host_timespec(&ts, ts_addr)) {
8207 return -TARGET_EFAULT;
8208 }
8209 ts_ptr = &ts;
8210 } else {
8211 ts_ptr = NULL;
8212 }
8213
8214
8215 if (arg6) {
8216 sig_ptr = &sig;
8217 sig.size = SIGSET_T_SIZE;
8218
8219 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
8220 if (!arg7) {
8221 return -TARGET_EFAULT;
8222 }
8223 arg_sigset = tswapal(arg7[0]);
8224 arg_sigsize = tswapal(arg7[1]);
8225 unlock_user(arg7, arg6, 0);
8226
8227 if (arg_sigset) {
8228 sig.set = &set;
8229 if (arg_sigsize != sizeof(*target_sigset)) {
8230
8231 return -TARGET_EINVAL;
8232 }
8233 target_sigset = lock_user(VERIFY_READ, arg_sigset,
8234 sizeof(*target_sigset), 1);
8235 if (!target_sigset) {
8236 return -TARGET_EFAULT;
8237 }
8238 target_to_host_sigset(&set, target_sigset);
8239 unlock_user(target_sigset, arg_sigset, 0);
8240 } else {
8241 sig.set = NULL;
8242 }
8243 } else {
8244 sig_ptr = NULL;
8245 }
8246
8247 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
8248 ts_ptr, sig_ptr));
8249
8250 if (!is_error(ret)) {
8251 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
8252 return -TARGET_EFAULT;
8253 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
8254 return -TARGET_EFAULT;
8255 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
8256 return -TARGET_EFAULT;
8257
8258 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
8259 return -TARGET_EFAULT;
8260 }
8261 }
8262 return ret;
8263#endif
8264#ifdef TARGET_NR_symlink
8265 case TARGET_NR_symlink:
8266 {
8267 void *p2;
8268 p = lock_user_string(arg1);
8269 p2 = lock_user_string(arg2);
8270 if (!p || !p2)
8271 ret = -TARGET_EFAULT;
8272 else
8273 ret = get_errno(symlink(p, p2));
8274 unlock_user(p2, arg2, 0);
8275 unlock_user(p, arg1, 0);
8276 }
8277 return ret;
8278#endif
8279#if defined(TARGET_NR_symlinkat)
8280 case TARGET_NR_symlinkat:
8281 {
8282 void *p2;
8283 p = lock_user_string(arg1);
8284 p2 = lock_user_string(arg3);
8285 if (!p || !p2)
8286 ret = -TARGET_EFAULT;
8287 else
8288 ret = get_errno(symlinkat(p, arg2, p2));
8289 unlock_user(p2, arg3, 0);
8290 unlock_user(p, arg1, 0);
8291 }
8292 return ret;
8293#endif
8294#ifdef TARGET_NR_readlink
8295 case TARGET_NR_readlink:
8296 {
8297 void *p2;
8298 p = lock_user_string(arg1);
8299 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8300 if (!p || !p2) {
8301 ret = -TARGET_EFAULT;
8302 } else if (!arg3) {
8303
8304 ret = -TARGET_EINVAL;
8305 } else if (is_proc_myself((const char *)p, "exe")) {
8306 char real[PATH_MAX], *temp;
8307 temp = realpath(exec_path, real);
8308
8309 if (temp == NULL) {
8310 ret = get_errno(-1);
8311 } else {
8312
8313
8314 ret = MIN(strlen(real), arg3);
8315
8316 memcpy(p2, real, ret);
8317 }
8318 } else {
8319 ret = get_errno(readlink(path(p), p2, arg3));
8320 }
8321 unlock_user(p2, arg2, ret);
8322 unlock_user(p, arg1, 0);
8323 }
8324 return ret;
8325#endif
8326#if defined(TARGET_NR_readlinkat)
8327 case TARGET_NR_readlinkat:
8328 {
8329 void *p2;
8330 p = lock_user_string(arg2);
8331 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8332 if (!p || !p2) {
8333 ret = -TARGET_EFAULT;
8334 } else if (is_proc_myself((const char *)p, "exe")) {
8335 char real[PATH_MAX], *temp;
8336 temp = realpath(exec_path, real);
8337 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8338 snprintf((char *)p2, arg4, "%s", real);
8339 } else {
8340 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
8341 }
8342 unlock_user(p2, arg3, ret);
8343 unlock_user(p, arg2, 0);
8344 }
8345 return ret;
8346#endif
8347#ifdef TARGET_NR_swapon
8348 case TARGET_NR_swapon:
8349 if (!(p = lock_user_string(arg1)))
8350 return -TARGET_EFAULT;
8351 ret = get_errno(swapon(p, arg2));
8352 unlock_user(p, arg1, 0);
8353 return ret;
8354#endif
8355 case TARGET_NR_reboot:
8356 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8357
8358 p = lock_user_string(arg4);
8359 if (!p) {
8360 return -TARGET_EFAULT;
8361 }
8362 ret = get_errno(reboot(arg1, arg2, arg3, p));
8363 unlock_user(p, arg4, 0);
8364 } else {
8365 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8366 }
8367 return ret;
8368#ifdef TARGET_NR_mmap
8369 case TARGET_NR_mmap:
8370#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8371 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
8372 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8373 || defined(TARGET_S390X)
8374 {
8375 abi_ulong *v;
8376 abi_ulong v1, v2, v3, v4, v5, v6;
8377 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
8378 return -TARGET_EFAULT;
8379 v1 = tswapal(v[0]);
8380 v2 = tswapal(v[1]);
8381 v3 = tswapal(v[2]);
8382 v4 = tswapal(v[3]);
8383 v5 = tswapal(v[4]);
8384 v6 = tswapal(v[5]);
8385 unlock_user(v, arg1, 0);
8386 ret = get_errno(target_mmap(v1, v2, v3,
8387 target_to_host_bitmask(v4, mmap_flags_tbl),
8388 v5, v6));
8389 }
8390#else
8391 ret = get_errno(target_mmap(arg1, arg2, arg3,
8392 target_to_host_bitmask(arg4, mmap_flags_tbl),
8393 arg5,
8394 arg6));
8395#endif
8396 return ret;
8397#endif
8398#ifdef TARGET_NR_mmap2
8399 case TARGET_NR_mmap2:
8400#ifndef MMAP_SHIFT
8401#define MMAP_SHIFT 12
8402#endif
8403 ret = target_mmap(arg1, arg2, arg3,
8404 target_to_host_bitmask(arg4, mmap_flags_tbl),
8405 arg5, arg6 << MMAP_SHIFT);
8406 return get_errno(ret);
8407#endif
8408 case TARGET_NR_munmap:
8409 return get_errno(target_munmap(arg1, arg2));
8410 case TARGET_NR_mprotect:
8411 {
8412 TaskState *ts = cpu->opaque;
8413
8414 if ((arg3 & PROT_GROWSDOWN)
8415 && arg1 >= ts->info->stack_limit
8416 && arg1 <= ts->info->start_stack) {
8417 arg3 &= ~PROT_GROWSDOWN;
8418 arg2 = arg2 + arg1 - ts->info->stack_limit;
8419 arg1 = ts->info->stack_limit;
8420 }
8421 }
8422 return get_errno(target_mprotect(arg1, arg2, arg3));
8423#ifdef TARGET_NR_mremap
8424 case TARGET_NR_mremap:
8425 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
8426#endif
8427
8428#ifdef TARGET_NR_msync
8429 case TARGET_NR_msync:
8430 return get_errno(msync(g2h(arg1), arg2, arg3));
8431#endif
8432#ifdef TARGET_NR_mlock
8433 case TARGET_NR_mlock:
8434 return get_errno(mlock(g2h(arg1), arg2));
8435#endif
8436#ifdef TARGET_NR_munlock
8437 case TARGET_NR_munlock:
8438 return get_errno(munlock(g2h(arg1), arg2));
8439#endif
8440#ifdef TARGET_NR_mlockall
8441 case TARGET_NR_mlockall:
8442 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
8443#endif
8444#ifdef TARGET_NR_munlockall
8445 case TARGET_NR_munlockall:
8446 return get_errno(munlockall());
8447#endif
8448#ifdef TARGET_NR_truncate
8449 case TARGET_NR_truncate:
8450 if (!(p = lock_user_string(arg1)))
8451 return -TARGET_EFAULT;
8452 ret = get_errno(truncate(p, arg2));
8453 unlock_user(p, arg1, 0);
8454 return ret;
8455#endif
8456#ifdef TARGET_NR_ftruncate
8457 case TARGET_NR_ftruncate:
8458 return get_errno(ftruncate(arg1, arg2));
8459#endif
8460 case TARGET_NR_fchmod:
8461 return get_errno(fchmod(arg1, arg2));
8462#if defined(TARGET_NR_fchmodat)
8463 case TARGET_NR_fchmodat:
8464 if (!(p = lock_user_string(arg2)))
8465 return -TARGET_EFAULT;
8466 ret = get_errno(fchmodat(arg1, p, arg3, 0));
8467 unlock_user(p, arg2, 0);
8468 return ret;
8469#endif
8470 case TARGET_NR_getpriority:
8471
8472
8473 errno = 0;
8474 ret = getpriority(arg1, arg2);
8475 if (ret == -1 && errno != 0) {
8476 return -host_to_target_errno(errno);
8477 }
8478#ifdef TARGET_ALPHA
8479
8480 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8481#else
8482
8483 ret = 20 - ret;
8484#endif
8485 return ret;
8486 case TARGET_NR_setpriority:
8487 return get_errno(setpriority(arg1, arg2, arg3));
8488#ifdef TARGET_NR_statfs
8489 case TARGET_NR_statfs:
8490 if (!(p = lock_user_string(arg1))) {
8491 return -TARGET_EFAULT;
8492 }
8493 ret = get_errno(statfs(path(p), &stfs));
8494 unlock_user(p, arg1, 0);
8495 convert_statfs:
8496 if (!is_error(ret)) {
8497 struct target_statfs *target_stfs;
8498
8499 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
8500 return -TARGET_EFAULT;
8501 __put_user(stfs.f_type, &target_stfs->f_type);
8502 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8503 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8504 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8505 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8506 __put_user(stfs.f_files, &target_stfs->f_files);
8507 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8508 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8509 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8510 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
8511 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8512#ifdef _STATFS_F_FLAGS
8513 __put_user(stfs.f_flags, &target_stfs->f_flags);
8514#else
8515 __put_user(0, &target_stfs->f_flags);
8516#endif
8517 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
8518 unlock_user_struct(target_stfs, arg2, 1);
8519 }
8520 return ret;
8521#endif
8522#ifdef TARGET_NR_fstatfs
8523 case TARGET_NR_fstatfs:
8524 ret = get_errno(fstatfs(arg1, &stfs));
8525 goto convert_statfs;
8526#endif
8527#ifdef TARGET_NR_statfs64
8528 case TARGET_NR_statfs64:
8529 if (!(p = lock_user_string(arg1))) {
8530 return -TARGET_EFAULT;
8531 }
8532 ret = get_errno(statfs(path(p), &stfs));
8533 unlock_user(p, arg1, 0);
8534 convert_statfs64:
8535 if (!is_error(ret)) {
8536 struct target_statfs64 *target_stfs;
8537
8538 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
8539 return -TARGET_EFAULT;
8540 __put_user(stfs.f_type, &target_stfs->f_type);
8541 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8542 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8543 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8544 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8545 __put_user(stfs.f_files, &target_stfs->f_files);
8546 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8547 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8548 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8549 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
8550 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8551 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
8552 unlock_user_struct(target_stfs, arg3, 1);
8553 }
8554 return ret;
8555 case TARGET_NR_fstatfs64:
8556 ret = get_errno(fstatfs(arg1, &stfs));
8557 goto convert_statfs64;
8558#endif
8559#ifdef TARGET_NR_socketcall
8560 case TARGET_NR_socketcall:
8561 return do_socketcall(arg1, arg2);
8562#endif
8563#ifdef TARGET_NR_accept
8564 case TARGET_NR_accept:
8565 return do_accept4(arg1, arg2, arg3, 0);
8566#endif
8567#ifdef TARGET_NR_accept4
8568 case TARGET_NR_accept4:
8569 return do_accept4(arg1, arg2, arg3, arg4);
8570#endif
8571#ifdef TARGET_NR_bind
8572 case TARGET_NR_bind:
8573 return do_bind(arg1, arg2, arg3);
8574#endif
8575#ifdef TARGET_NR_connect
8576 case TARGET_NR_connect:
8577 return do_connect(arg1, arg2, arg3);
8578#endif
8579#ifdef TARGET_NR_getpeername
8580 case TARGET_NR_getpeername:
8581 return do_getpeername(arg1, arg2, arg3);
8582#endif
8583#ifdef TARGET_NR_getsockname
8584 case TARGET_NR_getsockname:
8585 return do_getsockname(arg1, arg2, arg3);
8586#endif
8587#ifdef TARGET_NR_getsockopt
8588 case TARGET_NR_getsockopt:
8589 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
8590#endif
8591#ifdef TARGET_NR_listen
8592 case TARGET_NR_listen:
8593 return get_errno(listen(arg1, arg2));
8594#endif
8595#ifdef TARGET_NR_recv
8596 case TARGET_NR_recv:
8597 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
8598#endif
8599#ifdef TARGET_NR_recvfrom
8600 case TARGET_NR_recvfrom:
8601 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
8602#endif
8603#ifdef TARGET_NR_recvmsg
8604 case TARGET_NR_recvmsg:
8605 return do_sendrecvmsg(arg1, arg2, arg3, 0);
8606#endif
8607#ifdef TARGET_NR_send
8608 case TARGET_NR_send:
8609 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
8610#endif
8611#ifdef TARGET_NR_sendmsg
8612 case TARGET_NR_sendmsg:
8613 return do_sendrecvmsg(arg1, arg2, arg3, 1);
8614#endif
8615#ifdef TARGET_NR_sendmmsg
8616 case TARGET_NR_sendmmsg:
8617 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
8618 case TARGET_NR_recvmmsg:
8619 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
8620#endif
8621#ifdef TARGET_NR_sendto
8622 case TARGET_NR_sendto:
8623 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
8624#endif
8625#ifdef TARGET_NR_shutdown
8626 case TARGET_NR_shutdown:
8627 return get_errno(shutdown(arg1, arg2));
8628#endif
8629#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8630 case TARGET_NR_getrandom:
8631 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8632 if (!p) {
8633 return -TARGET_EFAULT;
8634 }
8635 ret = get_errno(getrandom(p, arg2, arg3));
8636 unlock_user(p, arg1, ret);
8637 return ret;
8638#endif
8639#ifdef TARGET_NR_socket
8640 case TARGET_NR_socket:
8641 return do_socket(arg1, arg2, arg3);
8642#endif
8643#ifdef TARGET_NR_socketpair
8644 case TARGET_NR_socketpair:
8645 return do_socketpair(arg1, arg2, arg3, arg4);
8646#endif
8647#ifdef TARGET_NR_setsockopt
8648 case TARGET_NR_setsockopt:
8649 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
8650#endif
8651#if defined(TARGET_NR_syslog)
8652 case TARGET_NR_syslog:
8653 {
8654 int len = arg2;
8655
8656 switch (arg1) {
8657 case TARGET_SYSLOG_ACTION_CLOSE:
8658 case TARGET_SYSLOG_ACTION_OPEN:
8659 case TARGET_SYSLOG_ACTION_CLEAR:
8660 case TARGET_SYSLOG_ACTION_CONSOLE_OFF:
8661 case TARGET_SYSLOG_ACTION_CONSOLE_ON:
8662 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL:
8663 case TARGET_SYSLOG_ACTION_SIZE_UNREAD:
8664 case TARGET_SYSLOG_ACTION_SIZE_BUFFER:
8665 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
8666 case TARGET_SYSLOG_ACTION_READ:
8667 case TARGET_SYSLOG_ACTION_READ_CLEAR:
8668 case TARGET_SYSLOG_ACTION_READ_ALL:
8669 {
8670 if (len < 0) {
8671 return -TARGET_EINVAL;
8672 }
8673 if (len == 0) {
8674 return 0;
8675 }
8676 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8677 if (!p) {
8678 return -TARGET_EFAULT;
8679 }
8680 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
8681 unlock_user(p, arg2, arg3);
8682 }
8683 return ret;
8684 default:
8685 return -TARGET_EINVAL;
8686 }
8687 }
8688 break;
8689#endif
8690 case TARGET_NR_setitimer:
8691 {
8692 struct itimerval value, ovalue, *pvalue;
8693
8694 if (arg2) {
8695 pvalue = &value;
8696 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
8697 || copy_from_user_timeval(&pvalue->it_value,
8698 arg2 + sizeof(struct target_timeval)))
8699 return -TARGET_EFAULT;
8700 } else {
8701 pvalue = NULL;
8702 }
8703 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
8704 if (!is_error(ret) && arg3) {
8705 if (copy_to_user_timeval(arg3,
8706 &ovalue.it_interval)
8707 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
8708 &ovalue.it_value))
8709 return -TARGET_EFAULT;
8710 }
8711 }
8712 return ret;
8713 case TARGET_NR_getitimer:
8714 {
8715 struct itimerval value;
8716
8717 ret = get_errno(getitimer(arg1, &value));
8718 if (!is_error(ret) && arg2) {
8719 if (copy_to_user_timeval(arg2,
8720 &value.it_interval)
8721 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
8722 &value.it_value))
8723 return -TARGET_EFAULT;
8724 }
8725 }
8726 return ret;
8727#ifdef TARGET_NR_stat
8728 case TARGET_NR_stat:
8729 if (!(p = lock_user_string(arg1))) {
8730 return -TARGET_EFAULT;
8731 }
8732 ret = get_errno(stat(path(p), &st));
8733 unlock_user(p, arg1, 0);
8734 goto do_stat;
8735#endif
8736#ifdef TARGET_NR_lstat
8737 case TARGET_NR_lstat:
8738 if (!(p = lock_user_string(arg1))) {
8739 return -TARGET_EFAULT;
8740 }
8741 ret = get_errno(lstat(path(p), &st));
8742 unlock_user(p, arg1, 0);
8743 goto do_stat;
8744#endif
8745#ifdef TARGET_NR_fstat
8746 case TARGET_NR_fstat:
8747 {
8748 ret = get_errno(fstat(arg1, &st));
8749#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
8750 do_stat:
8751#endif
8752 if (!is_error(ret)) {
8753 struct target_stat *target_st;
8754
8755 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
8756 return -TARGET_EFAULT;
8757 memset(target_st, 0, sizeof(*target_st));
8758 __put_user(st.st_dev, &target_st->st_dev);
8759 __put_user(st.st_ino, &target_st->st_ino);
8760 __put_user(st.st_mode, &target_st->st_mode);
8761 __put_user(st.st_uid, &target_st->st_uid);
8762 __put_user(st.st_gid, &target_st->st_gid);
8763 __put_user(st.st_nlink, &target_st->st_nlink);
8764 __put_user(st.st_rdev, &target_st->st_rdev);
8765 __put_user(st.st_size, &target_st->st_size);
8766 __put_user(st.st_blksize, &target_st->st_blksize);
8767 __put_user(st.st_blocks, &target_st->st_blocks);
8768 __put_user(st.st_atime, &target_st->target_st_atime);
8769 __put_user(st.st_mtime, &target_st->target_st_mtime);
8770 __put_user(st.st_ctime, &target_st->target_st_ctime);
8771 unlock_user_struct(target_st, arg2, 1);
8772 }
8773 }
8774 return ret;
8775#endif
8776 case TARGET_NR_vhangup:
8777 return get_errno(vhangup());
8778#ifdef TARGET_NR_syscall
8779 case TARGET_NR_syscall:
8780 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
8781 arg6, arg7, arg8, 0);
8782#endif
8783 case TARGET_NR_wait4:
8784 {
8785 int status;
8786 abi_long status_ptr = arg2;
8787 struct rusage rusage, *rusage_ptr;
8788 abi_ulong target_rusage = arg4;
8789 abi_long rusage_err;
8790 if (target_rusage)
8791 rusage_ptr = &rusage;
8792 else
8793 rusage_ptr = NULL;
8794 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
8795 if (!is_error(ret)) {
8796 if (status_ptr && ret) {
8797 status = host_to_target_waitstatus(status);
8798 if (put_user_s32(status, status_ptr))
8799 return -TARGET_EFAULT;
8800 }
8801 if (target_rusage) {
8802 rusage_err = host_to_target_rusage(target_rusage, &rusage);
8803 if (rusage_err) {
8804 ret = rusage_err;
8805 }
8806 }
8807 }
8808 }
8809 return ret;
8810#ifdef TARGET_NR_swapoff
8811 case TARGET_NR_swapoff:
8812 if (!(p = lock_user_string(arg1)))
8813 return -TARGET_EFAULT;
8814 ret = get_errno(swapoff(p));
8815 unlock_user(p, arg1, 0);
8816 return ret;
8817#endif
8818 case TARGET_NR_sysinfo:
8819 {
8820 struct target_sysinfo *target_value;
8821 struct sysinfo value;
8822 ret = get_errno(sysinfo(&value));
8823 if (!is_error(ret) && arg1)
8824 {
8825 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
8826 return -TARGET_EFAULT;
8827 __put_user(value.uptime, &target_value->uptime);
8828 __put_user(value.loads[0], &target_value->loads[0]);
8829 __put_user(value.loads[1], &target_value->loads[1]);
8830 __put_user(value.loads[2], &target_value->loads[2]);
8831 __put_user(value.totalram, &target_value->totalram);
8832 __put_user(value.freeram, &target_value->freeram);
8833 __put_user(value.sharedram, &target_value->sharedram);
8834 __put_user(value.bufferram, &target_value->bufferram);
8835 __put_user(value.totalswap, &target_value->totalswap);
8836 __put_user(value.freeswap, &target_value->freeswap);
8837 __put_user(value.procs, &target_value->procs);
8838 __put_user(value.totalhigh, &target_value->totalhigh);
8839 __put_user(value.freehigh, &target_value->freehigh);
8840 __put_user(value.mem_unit, &target_value->mem_unit);
8841 unlock_user_struct(target_value, arg1, 1);
8842 }
8843 }
8844 return ret;
8845#ifdef TARGET_NR_ipc
8846 case TARGET_NR_ipc:
8847 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
8848#endif
8849#ifdef TARGET_NR_semget
8850 case TARGET_NR_semget:
8851 return get_errno(semget(arg1, arg2, arg3));
8852#endif
8853#ifdef TARGET_NR_semop
8854 case TARGET_NR_semop:
8855 return do_semop(arg1, arg2, arg3);
8856#endif
8857#ifdef TARGET_NR_semctl
8858 case TARGET_NR_semctl:
8859 return do_semctl(arg1, arg2, arg3, arg4);
8860#endif
8861#ifdef TARGET_NR_msgctl
8862 case TARGET_NR_msgctl:
8863 return do_msgctl(arg1, arg2, arg3);
8864#endif
8865#ifdef TARGET_NR_msgget
8866 case TARGET_NR_msgget:
8867 return get_errno(msgget(arg1, arg2));
8868#endif
8869#ifdef TARGET_NR_msgrcv
8870 case TARGET_NR_msgrcv:
8871 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
8872#endif
8873#ifdef TARGET_NR_msgsnd
8874 case TARGET_NR_msgsnd:
8875 return do_msgsnd(arg1, arg2, arg3, arg4);
8876#endif
8877#ifdef TARGET_NR_shmget
8878 case TARGET_NR_shmget:
8879 return get_errno(shmget(arg1, arg2, arg3));
8880#endif
8881#ifdef TARGET_NR_shmctl
8882 case TARGET_NR_shmctl:
8883 return do_shmctl(arg1, arg2, arg3);
8884#endif
8885#ifdef TARGET_NR_shmat
8886 case TARGET_NR_shmat:
8887 return do_shmat(cpu_env, arg1, arg2, arg3);
8888#endif
8889#ifdef TARGET_NR_shmdt
8890 case TARGET_NR_shmdt:
8891 return do_shmdt(arg1);
8892#endif
8893 case TARGET_NR_fsync:
8894 return get_errno(fsync(arg1));
8895 case TARGET_NR_clone:
8896
8897
8898
8899
8900
8901
8902#if defined(TARGET_MICROBLAZE)
8903 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
8904#elif defined(TARGET_CLONE_BACKWARDS)
8905 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
8906#elif defined(TARGET_CLONE_BACKWARDS2)
8907 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
8908#else
8909 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
8910#endif
8911 return ret;
8912#ifdef __NR_exit_group
8913
8914 case TARGET_NR_exit_group:
8915 preexit_cleanup(cpu_env, arg1);
8916 return get_errno(exit_group(arg1));
8917#endif
8918 case TARGET_NR_setdomainname:
8919 if (!(p = lock_user_string(arg1)))
8920 return -TARGET_EFAULT;
8921 ret = get_errno(setdomainname(p, arg2));
8922 unlock_user(p, arg1, 0);
8923 return ret;
8924 case TARGET_NR_uname:
8925
8926 {
8927 struct new_utsname * buf;
8928
8929 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
8930 return -TARGET_EFAULT;
8931 ret = get_errno(sys_uname(buf));
8932 if (!is_error(ret)) {
8933
8934
8935 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
8936 sizeof(buf->machine));
8937
8938 if (qemu_uname_release && *qemu_uname_release) {
8939 g_strlcpy(buf->release, qemu_uname_release,
8940 sizeof(buf->release));
8941 }
8942 }
8943 unlock_user_struct(buf, arg1, 1);
8944 }
8945 return ret;
8946#ifdef TARGET_I386
8947 case TARGET_NR_modify_ldt:
8948 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
8949#if !defined(TARGET_X86_64)
8950 case TARGET_NR_vm86:
8951 return do_vm86(cpu_env, arg1, arg2);
8952#endif
8953#endif
8954 case TARGET_NR_adjtimex:
8955 {
8956 struct timex host_buf;
8957
8958 if (target_to_host_timex(&host_buf, arg1) != 0) {
8959 return -TARGET_EFAULT;
8960 }
8961 ret = get_errno(adjtimex(&host_buf));
8962 if (!is_error(ret)) {
8963 if (host_to_target_timex(arg1, &host_buf) != 0) {
8964 return -TARGET_EFAULT;
8965 }
8966 }
8967 }
8968 return ret;
8969#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
8970 case TARGET_NR_clock_adjtime:
8971 {
8972 struct timex htx, *phtx = &htx;
8973
8974 if (target_to_host_timex(phtx, arg2) != 0) {
8975 return -TARGET_EFAULT;
8976 }
8977 ret = get_errno(clock_adjtime(arg1, phtx));
8978 if (!is_error(ret) && phtx) {
8979 if (host_to_target_timex(arg2, phtx) != 0) {
8980 return -TARGET_EFAULT;
8981 }
8982 }
8983 }
8984 return ret;
8985#endif
8986 case TARGET_NR_getpgid:
8987 return get_errno(getpgid(arg1));
8988 case TARGET_NR_fchdir:
8989 return get_errno(fchdir(arg1));
8990 case TARGET_NR_personality:
8991 return get_errno(personality(arg1));
8992#ifdef TARGET_NR__llseek
8993 case TARGET_NR__llseek:
8994 {
8995 int64_t res;
8996#if !defined(__NR_llseek)
8997 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
8998 if (res == -1) {
8999 ret = get_errno(res);
9000 } else {
9001 ret = 0;
9002 }
9003#else
9004 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
9005#endif
9006 if ((ret == 0) && put_user_s64(res, arg4)) {
9007 return -TARGET_EFAULT;
9008 }
9009 }
9010 return ret;
9011#endif
9012#ifdef TARGET_NR_getdents
9013 case TARGET_NR_getdents:
9014#ifdef EMULATE_GETDENTS_WITH_GETDENTS
9015#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
9016 {
9017 struct target_dirent *target_dirp;
9018 struct linux_dirent *dirp;
9019 abi_long count = arg3;
9020
9021 dirp = g_try_malloc(count);
9022 if (!dirp) {
9023 return -TARGET_ENOMEM;
9024 }
9025
9026 ret = get_errno(sys_getdents(arg1, dirp, count));
9027 if (!is_error(ret)) {
9028 struct linux_dirent *de;
9029 struct target_dirent *tde;
9030 int len = ret;
9031 int reclen, treclen;
9032 int count1, tnamelen;
9033
9034 count1 = 0;
9035 de = dirp;
9036 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
9037 return -TARGET_EFAULT;
9038 tde = target_dirp;
9039 while (len > 0) {
9040 reclen = de->d_reclen;
9041 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
9042 assert(tnamelen >= 0);
9043 treclen = tnamelen + offsetof(struct target_dirent, d_name);
9044 assert(count1 + treclen <= count);
9045 tde->d_reclen = tswap16(treclen);
9046 tde->d_ino = tswapal(de->d_ino);
9047 tde->d_off = tswapal(de->d_off);
9048 memcpy(tde->d_name, de->d_name, tnamelen);
9049 de = (struct linux_dirent *)((char *)de + reclen);
9050 len -= reclen;
9051 tde = (struct target_dirent *)((char *)tde + treclen);
9052 count1 += treclen;
9053 }
9054 ret = count1;
9055 unlock_user(target_dirp, arg2, ret);
9056 }
9057 g_free(dirp);
9058 }
9059#else
9060 {
9061 struct linux_dirent *dirp;
9062 abi_long count = arg3;
9063
9064 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
9065 return -TARGET_EFAULT;
9066 ret = get_errno(sys_getdents(arg1, dirp, count));
9067 if (!is_error(ret)) {
9068 struct linux_dirent *de;
9069 int len = ret;
9070 int reclen;
9071 de = dirp;
9072 while (len > 0) {
9073 reclen = de->d_reclen;
9074 if (reclen > len)
9075 break;
9076 de->d_reclen = tswap16(reclen);
9077 tswapls(&de->d_ino);
9078 tswapls(&de->d_off);
9079 de = (struct linux_dirent *)((char *)de + reclen);
9080 len -= reclen;
9081 }
9082 }
9083 unlock_user(dirp, arg2, ret);
9084 }
9085#endif
9086#else
9087
9088 {
9089 struct linux_dirent64 *dirp;
9090 abi_long count = arg3;
9091
9092 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
9093 if (!dirp) {
9094 return -TARGET_EFAULT;
9095 }
9096 ret = get_errno(sys_getdents64(arg1, dirp, count));
9097 if (!is_error(ret)) {
9098
9099
9100
9101
9102
9103 struct linux_dirent64 *de;
9104 struct target_dirent *tde;
9105 int len = ret;
9106 int tlen = 0;
9107
9108 de = dirp;
9109 tde = (struct target_dirent *)dirp;
9110 while (len > 0) {
9111 int namelen, treclen;
9112 int reclen = de->d_reclen;
9113 uint64_t ino = de->d_ino;
9114 int64_t off = de->d_off;
9115 uint8_t type = de->d_type;
9116
9117 namelen = strlen(de->d_name);
9118 treclen = offsetof(struct target_dirent, d_name)
9119 + namelen + 2;
9120 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
9121
9122 memmove(tde->d_name, de->d_name, namelen + 1);
9123 tde->d_ino = tswapal(ino);
9124 tde->d_off = tswapal(off);
9125 tde->d_reclen = tswap16(treclen);
9126
9127
9128
9129 *(((char *)tde) + treclen - 1) = type;
9130
9131 de = (struct linux_dirent64 *)((char *)de + reclen);
9132 tde = (struct target_dirent *)((char *)tde + treclen);
9133 len -= reclen;
9134 tlen += treclen;
9135 }
9136 ret = tlen;
9137 }
9138 unlock_user(dirp, arg2, ret);
9139 }
9140#endif
9141 return ret;
9142#endif
9143#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
9144 case TARGET_NR_getdents64:
9145 {
9146 struct linux_dirent64 *dirp;
9147 abi_long count = arg3;
9148 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
9149 return -TARGET_EFAULT;
9150 ret = get_errno(sys_getdents64(arg1, dirp, count));
9151 if (!is_error(ret)) {
9152 struct linux_dirent64 *de;
9153 int len = ret;
9154 int reclen;
9155 de = dirp;
9156 while (len > 0) {
9157 reclen = de->d_reclen;
9158 if (reclen > len)
9159 break;
9160 de->d_reclen = tswap16(reclen);
9161 tswap64s((uint64_t *)&de->d_ino);
9162 tswap64s((uint64_t *)&de->d_off);
9163 de = (struct linux_dirent64 *)((char *)de + reclen);
9164 len -= reclen;
9165 }
9166 }
9167 unlock_user(dirp, arg2, ret);
9168 }
9169 return ret;
9170#endif
9171#if defined(TARGET_NR__newselect)
9172 case TARGET_NR__newselect:
9173 return do_select(arg1, arg2, arg3, arg4, arg5);
9174#endif
9175#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
9176# ifdef TARGET_NR_poll
9177 case TARGET_NR_poll:
9178# endif
9179# ifdef TARGET_NR_ppoll
9180 case TARGET_NR_ppoll:
9181# endif
9182 {
9183 struct target_pollfd *target_pfd;
9184 unsigned int nfds = arg2;
9185 struct pollfd *pfd;
9186 unsigned int i;
9187
9188 pfd = NULL;
9189 target_pfd = NULL;
9190 if (nfds) {
9191 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
9192 return -TARGET_EINVAL;
9193 }
9194
9195 target_pfd = lock_user(VERIFY_WRITE, arg1,
9196 sizeof(struct target_pollfd) * nfds, 1);
9197 if (!target_pfd) {
9198 return -TARGET_EFAULT;
9199 }
9200
9201 pfd = alloca(sizeof(struct pollfd) * nfds);
9202 for (i = 0; i < nfds; i++) {
9203 pfd[i].fd = tswap32(target_pfd[i].fd);
9204 pfd[i].events = tswap16(target_pfd[i].events);
9205 }
9206 }
9207
9208 switch (num) {
9209# ifdef TARGET_NR_ppoll
9210 case TARGET_NR_ppoll:
9211 {
9212 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
9213 target_sigset_t *target_set;
9214 sigset_t _set, *set = &_set;
9215
9216 if (arg3) {
9217 if (target_to_host_timespec(timeout_ts, arg3)) {
9218 unlock_user(target_pfd, arg1, 0);
9219 return -TARGET_EFAULT;
9220 }
9221 } else {
9222 timeout_ts = NULL;
9223 }
9224
9225 if (arg4) {
9226 if (arg5 != sizeof(target_sigset_t)) {
9227 unlock_user(target_pfd, arg1, 0);
9228 return -TARGET_EINVAL;
9229 }
9230
9231 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
9232 if (!target_set) {
9233 unlock_user(target_pfd, arg1, 0);
9234 return -TARGET_EFAULT;
9235 }
9236 target_to_host_sigset(set, target_set);
9237 } else {
9238 set = NULL;
9239 }
9240
9241 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
9242 set, SIGSET_T_SIZE));
9243
9244 if (!is_error(ret) && arg3) {
9245 host_to_target_timespec(arg3, timeout_ts);
9246 }
9247 if (arg4) {
9248 unlock_user(target_set, arg4, 0);
9249 }
9250 break;
9251 }
9252# endif
9253# ifdef TARGET_NR_poll
9254 case TARGET_NR_poll:
9255 {
9256 struct timespec ts, *pts;
9257
9258 if (arg3 >= 0) {
9259
9260 ts.tv_sec = arg3 / 1000;
9261 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
9262 pts = &ts;
9263 } else {
9264
9265 pts = NULL;
9266 }
9267 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
9268 break;
9269 }
9270# endif
9271 default:
9272 g_assert_not_reached();
9273 }
9274
9275 if (!is_error(ret)) {
9276 for(i = 0; i < nfds; i++) {
9277 target_pfd[i].revents = tswap16(pfd[i].revents);
9278 }
9279 }
9280 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9281 }
9282 return ret;
9283#endif
9284 case TARGET_NR_flock:
9285
9286
9287 return get_errno(safe_flock(arg1, arg2));
9288 case TARGET_NR_readv:
9289 {
9290 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9291 if (vec != NULL) {
9292 ret = get_errno(safe_readv(arg1, vec, arg3));
9293 unlock_iovec(vec, arg2, arg3, 1);
9294 } else {
9295 ret = -host_to_target_errno(errno);
9296 }
9297 }
9298 return ret;
9299 case TARGET_NR_writev:
9300 {
9301 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9302 if (vec != NULL) {
9303 ret = get_errno(safe_writev(arg1, vec, arg3));
9304 unlock_iovec(vec, arg2, arg3, 0);
9305 } else {
9306 ret = -host_to_target_errno(errno);
9307 }
9308 }
9309 return ret;
9310#if defined(TARGET_NR_preadv)
9311 case TARGET_NR_preadv:
9312 {
9313 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9314 if (vec != NULL) {
9315 unsigned long low, high;
9316
9317 target_to_host_low_high(arg4, arg5, &low, &high);
9318 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
9319 unlock_iovec(vec, arg2, arg3, 1);
9320 } else {
9321 ret = -host_to_target_errno(errno);
9322 }
9323 }
9324 return ret;
9325#endif
9326#if defined(TARGET_NR_pwritev)
9327 case TARGET_NR_pwritev:
9328 {
9329 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9330 if (vec != NULL) {
9331 unsigned long low, high;
9332
9333 target_to_host_low_high(arg4, arg5, &low, &high);
9334 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
9335 unlock_iovec(vec, arg2, arg3, 0);
9336 } else {
9337 ret = -host_to_target_errno(errno);
9338 }
9339 }
9340 return ret;
9341#endif
9342 case TARGET_NR_getsid:
9343 return get_errno(getsid(arg1));
9344#if defined(TARGET_NR_fdatasync)
9345 case TARGET_NR_fdatasync:
9346 return get_errno(fdatasync(arg1));
9347#endif
9348#ifdef TARGET_NR__sysctl
9349 case TARGET_NR__sysctl:
9350
9351
9352 return -TARGET_ENOTDIR;
9353#endif
9354 case TARGET_NR_sched_getaffinity:
9355 {
9356 unsigned int mask_size;
9357 unsigned long *mask;
9358
9359
9360
9361
9362
9363 if (arg2 & (sizeof(abi_ulong) - 1)) {
9364 return -TARGET_EINVAL;
9365 }
9366 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9367
9368 mask = alloca(mask_size);
9369 memset(mask, 0, mask_size);
9370 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9371
9372 if (!is_error(ret)) {
9373 if (ret > arg2) {
9374
9375
9376
9377
9378
9379
9380
9381 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9382 if (numcpus > arg2 * 8) {
9383 return -TARGET_EINVAL;
9384 }
9385 ret = arg2;
9386 }
9387
9388 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
9389 return -TARGET_EFAULT;
9390 }
9391 }
9392 }
9393 return ret;
9394 case TARGET_NR_sched_setaffinity:
9395 {
9396 unsigned int mask_size;
9397 unsigned long *mask;
9398
9399
9400
9401
9402
9403 if (arg2 & (sizeof(abi_ulong) - 1)) {
9404 return -TARGET_EINVAL;
9405 }
9406 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9407 mask = alloca(mask_size);
9408
9409 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
9410 if (ret) {
9411 return ret;
9412 }
9413
9414 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
9415 }
9416 case TARGET_NR_getcpu:
9417 {
9418 unsigned cpu, node;
9419 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
9420 arg2 ? &node : NULL,
9421 NULL));
9422 if (is_error(ret)) {
9423 return ret;
9424 }
9425 if (arg1 && put_user_u32(cpu, arg1)) {
9426 return -TARGET_EFAULT;
9427 }
9428 if (arg2 && put_user_u32(node, arg2)) {
9429 return -TARGET_EFAULT;
9430 }
9431 }
9432 return ret;
9433 case TARGET_NR_sched_setparam:
9434 {
9435 struct sched_param *target_schp;
9436 struct sched_param schp;
9437
9438 if (arg2 == 0) {
9439 return -TARGET_EINVAL;
9440 }
9441 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
9442 return -TARGET_EFAULT;
9443 schp.sched_priority = tswap32(target_schp->sched_priority);
9444 unlock_user_struct(target_schp, arg2, 0);
9445 return get_errno(sched_setparam(arg1, &schp));
9446 }
9447 case TARGET_NR_sched_getparam:
9448 {
9449 struct sched_param *target_schp;
9450 struct sched_param schp;
9451
9452 if (arg2 == 0) {
9453 return -TARGET_EINVAL;
9454 }
9455 ret = get_errno(sched_getparam(arg1, &schp));
9456 if (!is_error(ret)) {
9457 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
9458 return -TARGET_EFAULT;
9459 target_schp->sched_priority = tswap32(schp.sched_priority);
9460 unlock_user_struct(target_schp, arg2, 1);
9461 }
9462 }
9463 return ret;
9464 case TARGET_NR_sched_setscheduler:
9465 {
9466 struct sched_param *target_schp;
9467 struct sched_param schp;
9468 if (arg3 == 0) {
9469 return -TARGET_EINVAL;
9470 }
9471 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
9472 return -TARGET_EFAULT;
9473 schp.sched_priority = tswap32(target_schp->sched_priority);
9474 unlock_user_struct(target_schp, arg3, 0);
9475 return get_errno(sched_setscheduler(arg1, arg2, &schp));
9476 }
9477 case TARGET_NR_sched_getscheduler:
9478 return get_errno(sched_getscheduler(arg1));
9479 case TARGET_NR_sched_yield:
9480 return get_errno(sched_yield());
9481 case TARGET_NR_sched_get_priority_max:
9482 return get_errno(sched_get_priority_max(arg1));
9483 case TARGET_NR_sched_get_priority_min:
9484 return get_errno(sched_get_priority_min(arg1));
9485 case TARGET_NR_sched_rr_get_interval:
9486 {
9487 struct timespec ts;
9488 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9489 if (!is_error(ret)) {
9490 ret = host_to_target_timespec(arg2, &ts);
9491 }
9492 }
9493 return ret;
9494 case TARGET_NR_nanosleep:
9495 {
9496 struct timespec req, rem;
9497 target_to_host_timespec(&req, arg1);
9498 ret = get_errno(safe_nanosleep(&req, &rem));
9499 if (is_error(ret) && arg2) {
9500 host_to_target_timespec(arg2, &rem);
9501 }
9502 }
9503 return ret;
9504 case TARGET_NR_prctl:
9505 switch (arg1) {
9506 case PR_GET_PDEATHSIG:
9507 {
9508 int deathsig;
9509 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9510 if (!is_error(ret) && arg2
9511 && put_user_ual(deathsig, arg2)) {
9512 return -TARGET_EFAULT;
9513 }
9514 return ret;
9515 }
9516#ifdef PR_GET_NAME
9517 case PR_GET_NAME:
9518 {
9519 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9520 if (!name) {
9521 return -TARGET_EFAULT;
9522 }
9523 ret = get_errno(prctl(arg1, (unsigned long)name,
9524 arg3, arg4, arg5));
9525 unlock_user(name, arg2, 16);
9526 return ret;
9527 }
9528 case PR_SET_NAME:
9529 {
9530 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9531 if (!name) {
9532 return -TARGET_EFAULT;
9533 }
9534 ret = get_errno(prctl(arg1, (unsigned long)name,
9535 arg3, arg4, arg5));
9536 unlock_user(name, arg2, 0);
9537 return ret;
9538 }
9539#endif
9540#ifdef TARGET_MIPS
9541 case TARGET_PR_GET_FP_MODE:
9542 {
9543 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9544 ret = 0;
9545 if (env->CP0_Status & (1 << CP0St_FR)) {
9546 ret |= TARGET_PR_FP_MODE_FR;
9547 }
9548 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
9549 ret |= TARGET_PR_FP_MODE_FRE;
9550 }
9551 return ret;
9552 }
9553 case TARGET_PR_SET_FP_MODE:
9554 {
9555 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9556 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
9557 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
9558 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
9559 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
9560
9561 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
9562 TARGET_PR_FP_MODE_FRE;
9563
9564
9565 if (old_fr == new_fr && old_fre == new_fre) {
9566 return 0;
9567 }
9568
9569 if (arg2 & ~known_bits) {
9570 return -TARGET_EOPNOTSUPP;
9571 }
9572
9573 if (new_fre && !new_fr) {
9574 return -TARGET_EOPNOTSUPP;
9575 }
9576 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
9577
9578 return -TARGET_EOPNOTSUPP;
9579 }
9580 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
9581 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
9582
9583 return -TARGET_EOPNOTSUPP;
9584 }
9585 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
9586
9587 return -TARGET_EOPNOTSUPP;
9588 }
9589
9590 int i;
9591 fpr_t *fpr = env->active_fpu.fpr;
9592 for (i = 0; i < 32 ; i += 2) {
9593 if (!old_fr && new_fr) {
9594 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
9595 } else if (old_fr && !new_fr) {
9596 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
9597 }
9598 }
9599
9600 if (new_fr) {
9601 env->CP0_Status |= (1 << CP0St_FR);
9602 env->hflags |= MIPS_HFLAG_F64;
9603 } else {
9604 env->CP0_Status &= ~(1 << CP0St_FR);
9605 env->hflags &= ~MIPS_HFLAG_F64;
9606 }
9607 if (new_fre) {
9608 env->CP0_Config5 |= (1 << CP0C5_FRE);
9609 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
9610 env->hflags |= MIPS_HFLAG_FRE;
9611 }
9612 } else {
9613 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
9614 env->hflags &= ~MIPS_HFLAG_FRE;
9615 }
9616
9617 return 0;
9618 }
9619#endif
9620#ifdef TARGET_AARCH64
9621 case TARGET_PR_SVE_SET_VL:
9622
9623
9624
9625
9626
9627
9628 ret = -TARGET_EINVAL;
9629 if (cpu_isar_feature(aa64_sve, arm_env_get_cpu(cpu_env))
9630 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
9631 CPUARMState *env = cpu_env;
9632 ARMCPU *cpu = arm_env_get_cpu(env);
9633 uint32_t vq, old_vq;
9634
9635 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
9636 vq = MAX(arg2 / 16, 1);
9637 vq = MIN(vq, cpu->sve_max_vq);
9638
9639 if (vq < old_vq) {
9640 aarch64_sve_narrow_vq(env, vq);
9641 }
9642 env->vfp.zcr_el[1] = vq - 1;
9643 ret = vq * 16;
9644 }
9645 return ret;
9646 case TARGET_PR_SVE_GET_VL:
9647 ret = -TARGET_EINVAL;
9648 {
9649 ARMCPU *cpu = arm_env_get_cpu(cpu_env);
9650 if (cpu_isar_feature(aa64_sve, cpu)) {
9651 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
9652 }
9653 }
9654 return ret;
9655#endif
9656 case PR_GET_SECCOMP:
9657 case PR_SET_SECCOMP:
9658
9659
9660 return -TARGET_EINVAL;
9661 default:
9662
9663 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
9664 }
9665 break;
9666#ifdef TARGET_NR_arch_prctl
9667 case TARGET_NR_arch_prctl:
9668#if defined(TARGET_I386) && !defined(TARGET_ABI32)
9669 return do_arch_prctl(cpu_env, arg1, arg2);
9670#else
9671#error unreachable
9672#endif
9673#endif
9674#ifdef TARGET_NR_pread64
9675 case TARGET_NR_pread64:
9676 if (regpairs_aligned(cpu_env, num)) {
9677 arg4 = arg5;
9678 arg5 = arg6;
9679 }
9680 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
9681 return -TARGET_EFAULT;
9682 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
9683 unlock_user(p, arg2, ret);
9684 return ret;
9685 case TARGET_NR_pwrite64:
9686 if (regpairs_aligned(cpu_env, num)) {
9687 arg4 = arg5;
9688 arg5 = arg6;
9689 }
9690 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
9691 return -TARGET_EFAULT;
9692 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
9693 unlock_user(p, arg2, 0);
9694 return ret;
9695#endif
9696 case TARGET_NR_getcwd:
9697 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
9698 return -TARGET_EFAULT;
9699 ret = get_errno(sys_getcwd1(p, arg2));
9700 unlock_user(p, arg1, ret);
9701 return ret;
9702 case TARGET_NR_capget:
9703 case TARGET_NR_capset:
9704 {
9705 struct target_user_cap_header *target_header;
9706 struct target_user_cap_data *target_data = NULL;
9707 struct __user_cap_header_struct header;
9708 struct __user_cap_data_struct data[2];
9709 struct __user_cap_data_struct *dataptr = NULL;
9710 int i, target_datalen;
9711 int data_items = 1;
9712
9713 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
9714 return -TARGET_EFAULT;
9715 }
9716 header.version = tswap32(target_header->version);
9717 header.pid = tswap32(target_header->pid);
9718
9719 if (header.version != _LINUX_CAPABILITY_VERSION) {
9720
9721 data_items = 2;
9722 }
9723
9724 target_datalen = sizeof(*target_data) * data_items;
9725
9726 if (arg2) {
9727 if (num == TARGET_NR_capget) {
9728 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
9729 } else {
9730 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
9731 }
9732 if (!target_data) {
9733 unlock_user_struct(target_header, arg1, 0);
9734 return -TARGET_EFAULT;
9735 }
9736
9737 if (num == TARGET_NR_capset) {
9738 for (i = 0; i < data_items; i++) {
9739 data[i].effective = tswap32(target_data[i].effective);
9740 data[i].permitted = tswap32(target_data[i].permitted);
9741 data[i].inheritable = tswap32(target_data[i].inheritable);
9742 }
9743 }
9744
9745 dataptr = data;
9746 }
9747
9748 if (num == TARGET_NR_capget) {
9749 ret = get_errno(capget(&header, dataptr));
9750 } else {
9751 ret = get_errno(capset(&header, dataptr));
9752 }
9753
9754
9755 target_header->version = tswap32(header.version);
9756 unlock_user_struct(target_header, arg1, 1);
9757
9758 if (arg2) {
9759 if (num == TARGET_NR_capget) {
9760 for (i = 0; i < data_items; i++) {
9761 target_data[i].effective = tswap32(data[i].effective);
9762 target_data[i].permitted = tswap32(data[i].permitted);
9763 target_data[i].inheritable = tswap32(data[i].inheritable);
9764 }
9765 unlock_user(target_data, arg2, target_datalen);
9766 } else {
9767 unlock_user(target_data, arg2, 0);
9768 }
9769 }
9770 return ret;
9771 }
9772 case TARGET_NR_sigaltstack:
9773 return do_sigaltstack(arg1, arg2,
9774 get_sp_from_cpustate((CPUArchState *)cpu_env));
9775
9776#ifdef CONFIG_SENDFILE
9777#ifdef TARGET_NR_sendfile
9778 case TARGET_NR_sendfile:
9779 {
9780 off_t *offp = NULL;
9781 off_t off;
9782 if (arg3) {
9783 ret = get_user_sal(off, arg3);
9784 if (is_error(ret)) {
9785 return ret;
9786 }
9787 offp = &off;
9788 }
9789 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9790 if (!is_error(ret) && arg3) {
9791 abi_long ret2 = put_user_sal(off, arg3);
9792 if (is_error(ret2)) {
9793 ret = ret2;
9794 }
9795 }
9796 return ret;
9797 }
9798#endif
9799#ifdef TARGET_NR_sendfile64
9800 case TARGET_NR_sendfile64:
9801 {
9802 off_t *offp = NULL;
9803 off_t off;
9804 if (arg3) {
9805 ret = get_user_s64(off, arg3);
9806 if (is_error(ret)) {
9807 return ret;
9808 }
9809 offp = &off;
9810 }
9811 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9812 if (!is_error(ret) && arg3) {
9813 abi_long ret2 = put_user_s64(off, arg3);
9814 if (is_error(ret2)) {
9815 ret = ret2;
9816 }
9817 }
9818 return ret;
9819 }
9820#endif
9821#endif
9822#ifdef TARGET_NR_vfork
9823 case TARGET_NR_vfork:
9824 return get_errno(do_fork(cpu_env,
9825 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
9826 0, 0, 0, 0));
9827#endif
9828#ifdef TARGET_NR_ugetrlimit
9829 case TARGET_NR_ugetrlimit:
9830 {
9831 struct rlimit rlim;
9832 int resource = target_to_host_resource(arg1);
9833 ret = get_errno(getrlimit(resource, &rlim));
9834 if (!is_error(ret)) {
9835 struct target_rlimit *target_rlim;
9836 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
9837 return -TARGET_EFAULT;
9838 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9839 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
9840 unlock_user_struct(target_rlim, arg2, 1);
9841 }
9842 return ret;
9843 }
9844#endif
9845#ifdef TARGET_NR_truncate64
9846 case TARGET_NR_truncate64:
9847 if (!(p = lock_user_string(arg1)))
9848 return -TARGET_EFAULT;
9849 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
9850 unlock_user(p, arg1, 0);
9851 return ret;
9852#endif
9853#ifdef TARGET_NR_ftruncate64
9854 case TARGET_NR_ftruncate64:
9855 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
9856#endif
9857#ifdef TARGET_NR_stat64
9858 case TARGET_NR_stat64:
9859 if (!(p = lock_user_string(arg1))) {
9860 return -TARGET_EFAULT;
9861 }
9862 ret = get_errno(stat(path(p), &st));
9863 unlock_user(p, arg1, 0);
9864 if (!is_error(ret))
9865 ret = host_to_target_stat64(cpu_env, arg2, &st);
9866 return ret;
9867#endif
9868#ifdef TARGET_NR_lstat64
9869 case TARGET_NR_lstat64:
9870 if (!(p = lock_user_string(arg1))) {
9871 return -TARGET_EFAULT;
9872 }
9873 ret = get_errno(lstat(path(p), &st));
9874 unlock_user(p, arg1, 0);
9875 if (!is_error(ret))
9876 ret = host_to_target_stat64(cpu_env, arg2, &st);
9877 return ret;
9878#endif
9879#ifdef TARGET_NR_fstat64
9880 case TARGET_NR_fstat64:
9881 ret = get_errno(fstat(arg1, &st));
9882 if (!is_error(ret))
9883 ret = host_to_target_stat64(cpu_env, arg2, &st);
9884 return ret;
9885#endif
9886#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9887#ifdef TARGET_NR_fstatat64
9888 case TARGET_NR_fstatat64:
9889#endif
9890#ifdef TARGET_NR_newfstatat
9891 case TARGET_NR_newfstatat:
9892#endif
9893 if (!(p = lock_user_string(arg2))) {
9894 return -TARGET_EFAULT;
9895 }
9896 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
9897 unlock_user(p, arg2, 0);
9898 if (!is_error(ret))
9899 ret = host_to_target_stat64(cpu_env, arg3, &st);
9900 return ret;
9901#endif
9902#ifdef TARGET_NR_lchown
9903 case TARGET_NR_lchown:
9904 if (!(p = lock_user_string(arg1)))
9905 return -TARGET_EFAULT;
9906 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
9907 unlock_user(p, arg1, 0);
9908 return ret;
9909#endif
9910#ifdef TARGET_NR_getuid
9911 case TARGET_NR_getuid:
9912 return get_errno(high2lowuid(getuid()));
9913#endif
9914#ifdef TARGET_NR_getgid
9915 case TARGET_NR_getgid:
9916 return get_errno(high2lowgid(getgid()));
9917#endif
9918#ifdef TARGET_NR_geteuid
9919 case TARGET_NR_geteuid:
9920 return get_errno(high2lowuid(geteuid()));
9921#endif
9922#ifdef TARGET_NR_getegid
9923 case TARGET_NR_getegid:
9924 return get_errno(high2lowgid(getegid()));
9925#endif
9926 case TARGET_NR_setreuid:
9927 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
9928 case TARGET_NR_setregid:
9929 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
9930 case TARGET_NR_getgroups:
9931 {
9932 int gidsetsize = arg1;
9933 target_id *target_grouplist;
9934 gid_t *grouplist;
9935 int i;
9936
9937 grouplist = alloca(gidsetsize * sizeof(gid_t));
9938 ret = get_errno(getgroups(gidsetsize, grouplist));
9939 if (gidsetsize == 0)
9940 return ret;
9941 if (!is_error(ret)) {
9942 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
9943 if (!target_grouplist)
9944 return -TARGET_EFAULT;
9945 for(i = 0;i < ret; i++)
9946 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
9947 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
9948 }
9949 }
9950 return ret;
9951 case TARGET_NR_setgroups:
9952 {
9953 int gidsetsize = arg1;
9954 target_id *target_grouplist;
9955 gid_t *grouplist = NULL;
9956 int i;
9957 if (gidsetsize) {
9958 grouplist = alloca(gidsetsize * sizeof(gid_t));
9959 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
9960 if (!target_grouplist) {
9961 return -TARGET_EFAULT;
9962 }
9963 for (i = 0; i < gidsetsize; i++) {
9964 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
9965 }
9966 unlock_user(target_grouplist, arg2, 0);
9967 }
9968 return get_errno(setgroups(gidsetsize, grouplist));
9969 }
9970 case TARGET_NR_fchown:
9971 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
9972#if defined(TARGET_NR_fchownat)
9973 case TARGET_NR_fchownat:
9974 if (!(p = lock_user_string(arg2)))
9975 return -TARGET_EFAULT;
9976 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
9977 low2highgid(arg4), arg5));
9978 unlock_user(p, arg2, 0);
9979 return ret;
9980#endif
9981#ifdef TARGET_NR_setresuid
9982 case TARGET_NR_setresuid:
9983 return get_errno(sys_setresuid(low2highuid(arg1),
9984 low2highuid(arg2),
9985 low2highuid(arg3)));
9986#endif
9987#ifdef TARGET_NR_getresuid
9988 case TARGET_NR_getresuid:
9989 {
9990 uid_t ruid, euid, suid;
9991 ret = get_errno(getresuid(&ruid, &euid, &suid));
9992 if (!is_error(ret)) {
9993 if (put_user_id(high2lowuid(ruid), arg1)
9994 || put_user_id(high2lowuid(euid), arg2)
9995 || put_user_id(high2lowuid(suid), arg3))
9996 return -TARGET_EFAULT;
9997 }
9998 }
9999 return ret;
10000#endif
10001#ifdef TARGET_NR_getresgid
10002 case TARGET_NR_setresgid:
10003 return get_errno(sys_setresgid(low2highgid(arg1),
10004 low2highgid(arg2),
10005 low2highgid(arg3)));
10006#endif
10007#ifdef TARGET_NR_getresgid
10008 case TARGET_NR_getresgid:
10009 {
10010 gid_t rgid, egid, sgid;
10011 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10012 if (!is_error(ret)) {
10013 if (put_user_id(high2lowgid(rgid), arg1)
10014 || put_user_id(high2lowgid(egid), arg2)
10015 || put_user_id(high2lowgid(sgid), arg3))
10016 return -TARGET_EFAULT;
10017 }
10018 }
10019 return ret;
10020#endif
10021#ifdef TARGET_NR_chown
10022 case TARGET_NR_chown:
10023 if (!(p = lock_user_string(arg1)))
10024 return -TARGET_EFAULT;
10025 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
10026 unlock_user(p, arg1, 0);
10027 return ret;
10028#endif
10029 case TARGET_NR_setuid:
10030 return get_errno(sys_setuid(low2highuid(arg1)));
10031 case TARGET_NR_setgid:
10032 return get_errno(sys_setgid(low2highgid(arg1)));
10033 case TARGET_NR_setfsuid:
10034 return get_errno(setfsuid(arg1));
10035 case TARGET_NR_setfsgid:
10036 return get_errno(setfsgid(arg1));
10037
10038#ifdef TARGET_NR_lchown32
10039 case TARGET_NR_lchown32:
10040 if (!(p = lock_user_string(arg1)))
10041 return -TARGET_EFAULT;
10042 ret = get_errno(lchown(p, arg2, arg3));
10043 unlock_user(p, arg1, 0);
10044 return ret;
10045#endif
10046#ifdef TARGET_NR_getuid32
10047 case TARGET_NR_getuid32:
10048 return get_errno(getuid());
10049#endif
10050
10051#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
10052
10053 case TARGET_NR_getxuid:
10054 {
10055 uid_t euid;
10056 euid=geteuid();
10057 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
10058 }
10059 return get_errno(getuid());
10060#endif
10061#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
10062
10063 case TARGET_NR_getxgid:
10064 {
10065 uid_t egid;
10066 egid=getegid();
10067 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
10068 }
10069 return get_errno(getgid());
10070#endif
10071#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
10072
10073 case TARGET_NR_osf_getsysinfo:
10074 ret = -TARGET_EOPNOTSUPP;
10075 switch (arg1) {
10076 case TARGET_GSI_IEEE_FP_CONTROL:
10077 {
10078 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
10079
10080
10081 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
10082 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
10083 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
10084 | SWCR_TRAP_ENABLE_DZE
10085 | SWCR_TRAP_ENABLE_OVF);
10086 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
10087 | SWCR_TRAP_ENABLE_INE);
10088 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
10089 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
10090
10091 if (put_user_u64 (swcr, arg2))
10092 return -TARGET_EFAULT;
10093 ret = 0;
10094 }
10095 break;
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106 }
10107 return ret;
10108#endif
10109#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
10110
10111 case TARGET_NR_osf_setsysinfo:
10112 ret = -TARGET_EOPNOTSUPP;
10113 switch (arg1) {
10114 case TARGET_SSI_IEEE_FP_CONTROL:
10115 {
10116 uint64_t swcr, fpcr, orig_fpcr;
10117
10118 if (get_user_u64 (swcr, arg2)) {
10119 return -TARGET_EFAULT;
10120 }
10121 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
10122 fpcr = orig_fpcr & FPCR_DYN_MASK;
10123
10124
10125 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
10126 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
10127 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
10128 | SWCR_TRAP_ENABLE_DZE
10129 | SWCR_TRAP_ENABLE_OVF)) << 48;
10130 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
10131 | SWCR_TRAP_ENABLE_INE)) << 57;
10132 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
10133 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
10134
10135 cpu_alpha_store_fpcr(cpu_env, fpcr);
10136 ret = 0;
10137 }
10138 break;
10139
10140 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
10141 {
10142 uint64_t exc, fpcr, orig_fpcr;
10143 int si_code;
10144
10145 if (get_user_u64(exc, arg2)) {
10146 return -TARGET_EFAULT;
10147 }
10148
10149 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
10150
10151
10152 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
10153
10154 cpu_alpha_store_fpcr(cpu_env, fpcr);
10155 ret = 0;
10156
10157
10158 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
10159
10160
10161
10162 si_code = 0;
10163 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
10164 si_code = TARGET_FPE_FLTRES;
10165 }
10166 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
10167 si_code = TARGET_FPE_FLTUND;
10168 }
10169 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
10170 si_code = TARGET_FPE_FLTOVF;
10171 }
10172 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
10173 si_code = TARGET_FPE_FLTDIV;
10174 }
10175 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
10176 si_code = TARGET_FPE_FLTINV;
10177 }
10178 if (si_code != 0) {
10179 target_siginfo_t info;
10180 info.si_signo = SIGFPE;
10181 info.si_errno = 0;
10182 info.si_code = si_code;
10183 info._sifields._sigfault._addr
10184 = ((CPUArchState *)cpu_env)->pc;
10185 queue_signal((CPUArchState *)cpu_env, info.si_signo,
10186 QEMU_SI_FAULT, &info);
10187 }
10188 }
10189 break;
10190
10191
10192
10193
10194
10195
10196
10197 }
10198 return ret;
10199#endif
10200#ifdef TARGET_NR_osf_sigprocmask
10201
10202 case TARGET_NR_osf_sigprocmask:
10203 {
10204 abi_ulong mask;
10205 int how;
10206 sigset_t set, oldset;
10207
10208 switch(arg1) {
10209 case TARGET_SIG_BLOCK:
10210 how = SIG_BLOCK;
10211 break;
10212 case TARGET_SIG_UNBLOCK:
10213 how = SIG_UNBLOCK;
10214 break;
10215 case TARGET_SIG_SETMASK:
10216 how = SIG_SETMASK;
10217 break;
10218 default:
10219 return -TARGET_EINVAL;
10220 }
10221 mask = arg2;
10222 target_to_host_old_sigset(&set, &mask);
10223 ret = do_sigprocmask(how, &set, &oldset);
10224 if (!ret) {
10225 host_to_target_old_sigset(&mask, &oldset);
10226 ret = mask;
10227 }
10228 }
10229 return ret;
10230#endif
10231
10232#ifdef TARGET_NR_getgid32
10233 case TARGET_NR_getgid32:
10234 return get_errno(getgid());
10235#endif
10236#ifdef TARGET_NR_geteuid32
10237 case TARGET_NR_geteuid32:
10238 return get_errno(geteuid());
10239#endif
10240#ifdef TARGET_NR_getegid32
10241 case TARGET_NR_getegid32:
10242 return get_errno(getegid());
10243#endif
10244#ifdef TARGET_NR_setreuid32
10245 case TARGET_NR_setreuid32:
10246 return get_errno(setreuid(arg1, arg2));
10247#endif
10248#ifdef TARGET_NR_setregid32
10249 case TARGET_NR_setregid32:
10250 return get_errno(setregid(arg1, arg2));
10251#endif
10252#ifdef TARGET_NR_getgroups32
10253 case TARGET_NR_getgroups32:
10254 {
10255 int gidsetsize = arg1;
10256 uint32_t *target_grouplist;
10257 gid_t *grouplist;
10258 int i;
10259
10260 grouplist = alloca(gidsetsize * sizeof(gid_t));
10261 ret = get_errno(getgroups(gidsetsize, grouplist));
10262 if (gidsetsize == 0)
10263 return ret;
10264 if (!is_error(ret)) {
10265 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
10266 if (!target_grouplist) {
10267 return -TARGET_EFAULT;
10268 }
10269 for(i = 0;i < ret; i++)
10270 target_grouplist[i] = tswap32(grouplist[i]);
10271 unlock_user(target_grouplist, arg2, gidsetsize * 4);
10272 }
10273 }
10274 return ret;
10275#endif
10276#ifdef TARGET_NR_setgroups32
10277 case TARGET_NR_setgroups32:
10278 {
10279 int gidsetsize = arg1;
10280 uint32_t *target_grouplist;
10281 gid_t *grouplist;
10282 int i;
10283
10284 grouplist = alloca(gidsetsize * sizeof(gid_t));
10285 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
10286 if (!target_grouplist) {
10287 return -TARGET_EFAULT;
10288 }
10289 for(i = 0;i < gidsetsize; i++)
10290 grouplist[i] = tswap32(target_grouplist[i]);
10291 unlock_user(target_grouplist, arg2, 0);
10292 return get_errno(setgroups(gidsetsize, grouplist));
10293 }
10294#endif
10295#ifdef TARGET_NR_fchown32
10296 case TARGET_NR_fchown32:
10297 return get_errno(fchown(arg1, arg2, arg3));
10298#endif
10299#ifdef TARGET_NR_setresuid32
10300 case TARGET_NR_setresuid32:
10301 return get_errno(sys_setresuid(arg1, arg2, arg3));
10302#endif
10303#ifdef TARGET_NR_getresuid32
10304 case TARGET_NR_getresuid32:
10305 {
10306 uid_t ruid, euid, suid;
10307 ret = get_errno(getresuid(&ruid, &euid, &suid));
10308 if (!is_error(ret)) {
10309 if (put_user_u32(ruid, arg1)
10310 || put_user_u32(euid, arg2)
10311 || put_user_u32(suid, arg3))
10312 return -TARGET_EFAULT;
10313 }
10314 }
10315 return ret;
10316#endif
10317#ifdef TARGET_NR_setresgid32
10318 case TARGET_NR_setresgid32:
10319 return get_errno(sys_setresgid(arg1, arg2, arg3));
10320#endif
10321#ifdef TARGET_NR_getresgid32
10322 case TARGET_NR_getresgid32:
10323 {
10324 gid_t rgid, egid, sgid;
10325 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10326 if (!is_error(ret)) {
10327 if (put_user_u32(rgid, arg1)
10328 || put_user_u32(egid, arg2)
10329 || put_user_u32(sgid, arg3))
10330 return -TARGET_EFAULT;
10331 }
10332 }
10333 return ret;
10334#endif
10335#ifdef TARGET_NR_chown32
10336 case TARGET_NR_chown32:
10337 if (!(p = lock_user_string(arg1)))
10338 return -TARGET_EFAULT;
10339 ret = get_errno(chown(p, arg2, arg3));
10340 unlock_user(p, arg1, 0);
10341 return ret;
10342#endif
10343#ifdef TARGET_NR_setuid32
10344 case TARGET_NR_setuid32:
10345 return get_errno(sys_setuid(arg1));
10346#endif
10347#ifdef TARGET_NR_setgid32
10348 case TARGET_NR_setgid32:
10349 return get_errno(sys_setgid(arg1));
10350#endif
10351#ifdef TARGET_NR_setfsuid32
10352 case TARGET_NR_setfsuid32:
10353 return get_errno(setfsuid(arg1));
10354#endif
10355#ifdef TARGET_NR_setfsgid32
10356 case TARGET_NR_setfsgid32:
10357 return get_errno(setfsgid(arg1));
10358#endif
10359#ifdef TARGET_NR_mincore
10360 case TARGET_NR_mincore:
10361 {
10362 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
10363 if (!a) {
10364 return -TARGET_ENOMEM;
10365 }
10366 p = lock_user_string(arg3);
10367 if (!p) {
10368 ret = -TARGET_EFAULT;
10369 } else {
10370 ret = get_errno(mincore(a, arg2, p));
10371 unlock_user(p, arg3, ret);
10372 }
10373 unlock_user(a, arg1, 0);
10374 }
10375 return ret;
10376#endif
10377#ifdef TARGET_NR_arm_fadvise64_64
10378 case TARGET_NR_arm_fadvise64_64:
10379
10380
10381
10382
10383
10384
10385 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
10386 target_offset64(arg5, arg6), arg2);
10387 return -host_to_target_errno(ret);
10388#endif
10389
10390#if TARGET_ABI_BITS == 32
10391
10392#ifdef TARGET_NR_fadvise64_64
10393 case TARGET_NR_fadvise64_64:
10394#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
10395
10396 ret = arg2;
10397 arg2 = arg3;
10398 arg3 = arg4;
10399 arg4 = arg5;
10400 arg5 = arg6;
10401 arg6 = ret;
10402#else
10403
10404 if (regpairs_aligned(cpu_env, num)) {
10405
10406 arg2 = arg3;
10407 arg3 = arg4;
10408 arg4 = arg5;
10409 arg5 = arg6;
10410 arg6 = arg7;
10411 }
10412#endif
10413 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
10414 target_offset64(arg4, arg5), arg6);
10415 return -host_to_target_errno(ret);
10416#endif
10417
10418#ifdef TARGET_NR_fadvise64
10419 case TARGET_NR_fadvise64:
10420
10421 if (regpairs_aligned(cpu_env, num)) {
10422
10423 arg2 = arg3;
10424 arg3 = arg4;
10425 arg4 = arg5;
10426 arg5 = arg6;
10427 }
10428 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
10429 return -host_to_target_errno(ret);
10430#endif
10431
10432#else
10433#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
10434#ifdef TARGET_NR_fadvise64_64
10435 case TARGET_NR_fadvise64_64:
10436#endif
10437#ifdef TARGET_NR_fadvise64
10438 case TARGET_NR_fadvise64:
10439#endif
10440#ifdef TARGET_S390X
10441 switch (arg4) {
10442 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break;
10443 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break;
10444 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10445 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10446 default: break;
10447 }
10448#endif
10449 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
10450#endif
10451#endif
10452
10453#ifdef TARGET_NR_madvise
10454 case TARGET_NR_madvise:
10455
10456
10457
10458
10459 return 0;
10460#endif
10461#if TARGET_ABI_BITS == 32
10462 case TARGET_NR_fcntl64:
10463 {
10464 int cmd;
10465 struct flock64 fl;
10466 from_flock64_fn *copyfrom = copy_from_user_flock64;
10467 to_flock64_fn *copyto = copy_to_user_flock64;
10468
10469#ifdef TARGET_ARM
10470 if (!((CPUARMState *)cpu_env)->eabi) {
10471 copyfrom = copy_from_user_oabi_flock64;
10472 copyto = copy_to_user_oabi_flock64;
10473 }
10474#endif
10475
10476 cmd = target_to_host_fcntl_cmd(arg2);
10477 if (cmd == -TARGET_EINVAL) {
10478 return cmd;
10479 }
10480
10481 switch(arg2) {
10482 case TARGET_F_GETLK64:
10483 ret = copyfrom(&fl, arg3);
10484 if (ret) {
10485 break;
10486 }
10487 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
10488 if (ret == 0) {
10489 ret = copyto(arg3, &fl);
10490 }
10491 break;
10492
10493 case TARGET_F_SETLK64:
10494 case TARGET_F_SETLKW64:
10495 ret = copyfrom(&fl, arg3);
10496 if (ret) {
10497 break;
10498 }
10499 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
10500 break;
10501 default:
10502 ret = do_fcntl(arg1, arg2, arg3);
10503 break;
10504 }
10505 return ret;
10506 }
10507#endif
10508#ifdef TARGET_NR_cacheflush
10509 case TARGET_NR_cacheflush:
10510
10511 return 0;
10512#endif
10513#ifdef TARGET_NR_getpagesize
10514 case TARGET_NR_getpagesize:
10515 return TARGET_PAGE_SIZE;
10516#endif
10517 case TARGET_NR_gettid:
10518 return get_errno(gettid());
10519#ifdef TARGET_NR_readahead
10520 case TARGET_NR_readahead:
10521#if TARGET_ABI_BITS == 32
10522 if (regpairs_aligned(cpu_env, num)) {
10523 arg2 = arg3;
10524 arg3 = arg4;
10525 arg4 = arg5;
10526 }
10527 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
10528#else
10529 ret = get_errno(readahead(arg1, arg2, arg3));
10530#endif
10531 return ret;
10532#endif
10533#ifdef CONFIG_ATTR
10534#ifdef TARGET_NR_setxattr
10535 case TARGET_NR_listxattr:
10536 case TARGET_NR_llistxattr:
10537 {
10538 void *p, *b = 0;
10539 if (arg2) {
10540 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10541 if (!b) {
10542 return -TARGET_EFAULT;
10543 }
10544 }
10545 p = lock_user_string(arg1);
10546 if (p) {
10547 if (num == TARGET_NR_listxattr) {
10548 ret = get_errno(listxattr(p, b, arg3));
10549 } else {
10550 ret = get_errno(llistxattr(p, b, arg3));
10551 }
10552 } else {
10553 ret = -TARGET_EFAULT;
10554 }
10555 unlock_user(p, arg1, 0);
10556 unlock_user(b, arg2, arg3);
10557 return ret;
10558 }
10559 case TARGET_NR_flistxattr:
10560 {
10561 void *b = 0;
10562 if (arg2) {
10563 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10564 if (!b) {
10565 return -TARGET_EFAULT;
10566 }
10567 }
10568 ret = get_errno(flistxattr(arg1, b, arg3));
10569 unlock_user(b, arg2, arg3);
10570 return ret;
10571 }
10572 case TARGET_NR_setxattr:
10573 case TARGET_NR_lsetxattr:
10574 {
10575 void *p, *n, *v = 0;
10576 if (arg3) {
10577 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10578 if (!v) {
10579 return -TARGET_EFAULT;
10580 }
10581 }
10582 p = lock_user_string(arg1);
10583 n = lock_user_string(arg2);
10584 if (p && n) {
10585 if (num == TARGET_NR_setxattr) {
10586 ret = get_errno(setxattr(p, n, v, arg4, arg5));
10587 } else {
10588 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
10589 }
10590 } else {
10591 ret = -TARGET_EFAULT;
10592 }
10593 unlock_user(p, arg1, 0);
10594 unlock_user(n, arg2, 0);
10595 unlock_user(v, arg3, 0);
10596 }
10597 return ret;
10598 case TARGET_NR_fsetxattr:
10599 {
10600 void *n, *v = 0;
10601 if (arg3) {
10602 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10603 if (!v) {
10604 return -TARGET_EFAULT;
10605 }
10606 }
10607 n = lock_user_string(arg2);
10608 if (n) {
10609 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
10610 } else {
10611 ret = -TARGET_EFAULT;
10612 }
10613 unlock_user(n, arg2, 0);
10614 unlock_user(v, arg3, 0);
10615 }
10616 return ret;
10617 case TARGET_NR_getxattr:
10618 case TARGET_NR_lgetxattr:
10619 {
10620 void *p, *n, *v = 0;
10621 if (arg3) {
10622 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10623 if (!v) {
10624 return -TARGET_EFAULT;
10625 }
10626 }
10627 p = lock_user_string(arg1);
10628 n = lock_user_string(arg2);
10629 if (p && n) {
10630 if (num == TARGET_NR_getxattr) {
10631 ret = get_errno(getxattr(p, n, v, arg4));
10632 } else {
10633 ret = get_errno(lgetxattr(p, n, v, arg4));
10634 }
10635 } else {
10636 ret = -TARGET_EFAULT;
10637 }
10638 unlock_user(p, arg1, 0);
10639 unlock_user(n, arg2, 0);
10640 unlock_user(v, arg3, arg4);
10641 }
10642 return ret;
10643 case TARGET_NR_fgetxattr:
10644 {
10645 void *n, *v = 0;
10646 if (arg3) {
10647 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10648 if (!v) {
10649 return -TARGET_EFAULT;
10650 }
10651 }
10652 n = lock_user_string(arg2);
10653 if (n) {
10654 ret = get_errno(fgetxattr(arg1, n, v, arg4));
10655 } else {
10656 ret = -TARGET_EFAULT;
10657 }
10658 unlock_user(n, arg2, 0);
10659 unlock_user(v, arg3, arg4);
10660 }
10661 return ret;
10662 case TARGET_NR_removexattr:
10663 case TARGET_NR_lremovexattr:
10664 {
10665 void *p, *n;
10666 p = lock_user_string(arg1);
10667 n = lock_user_string(arg2);
10668 if (p && n) {
10669 if (num == TARGET_NR_removexattr) {
10670 ret = get_errno(removexattr(p, n));
10671 } else {
10672 ret = get_errno(lremovexattr(p, n));
10673 }
10674 } else {
10675 ret = -TARGET_EFAULT;
10676 }
10677 unlock_user(p, arg1, 0);
10678 unlock_user(n, arg2, 0);
10679 }
10680 return ret;
10681 case TARGET_NR_fremovexattr:
10682 {
10683 void *n;
10684 n = lock_user_string(arg2);
10685 if (n) {
10686 ret = get_errno(fremovexattr(arg1, n));
10687 } else {
10688 ret = -TARGET_EFAULT;
10689 }
10690 unlock_user(n, arg2, 0);
10691 }
10692 return ret;
10693#endif
10694#endif
10695#ifdef TARGET_NR_set_thread_area
10696 case TARGET_NR_set_thread_area:
10697#if defined(TARGET_MIPS)
10698 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
10699 return 0;
10700#elif defined(TARGET_CRIS)
10701 if (arg1 & 0xff)
10702 ret = -TARGET_EINVAL;
10703 else {
10704 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
10705 ret = 0;
10706 }
10707 return ret;
10708#elif defined(TARGET_I386) && defined(TARGET_ABI32)
10709 return do_set_thread_area(cpu_env, arg1);
10710#elif defined(TARGET_M68K)
10711 {
10712 TaskState *ts = cpu->opaque;
10713 ts->tp_value = arg1;
10714 return 0;
10715 }
10716#else
10717 return -TARGET_ENOSYS;
10718#endif
10719#endif
10720#ifdef TARGET_NR_get_thread_area
10721 case TARGET_NR_get_thread_area:
10722#if defined(TARGET_I386) && defined(TARGET_ABI32)
10723 return do_get_thread_area(cpu_env, arg1);
10724#elif defined(TARGET_M68K)
10725 {
10726 TaskState *ts = cpu->opaque;
10727 return ts->tp_value;
10728 }
10729#else
10730 return -TARGET_ENOSYS;
10731#endif
10732#endif
10733#ifdef TARGET_NR_getdomainname
10734 case TARGET_NR_getdomainname:
10735 return -TARGET_ENOSYS;
10736#endif
10737
10738#ifdef TARGET_NR_clock_settime
10739 case TARGET_NR_clock_settime:
10740 {
10741 struct timespec ts;
10742
10743 ret = target_to_host_timespec(&ts, arg2);
10744 if (!is_error(ret)) {
10745 ret = get_errno(clock_settime(arg1, &ts));
10746 }
10747 return ret;
10748 }
10749#endif
10750#ifdef TARGET_NR_clock_gettime
10751 case TARGET_NR_clock_gettime:
10752 {
10753 struct timespec ts;
10754 ret = get_errno(clock_gettime(arg1, &ts));
10755 if (!is_error(ret)) {
10756 ret = host_to_target_timespec(arg2, &ts);
10757 }
10758 return ret;
10759 }
10760#endif
10761#ifdef TARGET_NR_clock_getres
10762 case TARGET_NR_clock_getres:
10763 {
10764 struct timespec ts;
10765 ret = get_errno(clock_getres(arg1, &ts));
10766 if (!is_error(ret)) {
10767 host_to_target_timespec(arg2, &ts);
10768 }
10769 return ret;
10770 }
10771#endif
10772#ifdef TARGET_NR_clock_nanosleep
10773 case TARGET_NR_clock_nanosleep:
10774 {
10775 struct timespec ts;
10776 target_to_host_timespec(&ts, arg3);
10777 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
10778 &ts, arg4 ? &ts : NULL));
10779 if (arg4)
10780 host_to_target_timespec(arg4, &ts);
10781
10782#if defined(TARGET_PPC)
10783
10784
10785 if (ret && ret != -TARGET_ERESTARTSYS) {
10786 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
10787 }
10788#endif
10789 return ret;
10790 }
10791#endif
10792
10793#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
10794 case TARGET_NR_set_tid_address:
10795 return get_errno(set_tid_address((int *)g2h(arg1)));
10796#endif
10797
10798 case TARGET_NR_tkill:
10799 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
10800
10801 case TARGET_NR_tgkill:
10802 return get_errno(safe_tgkill((int)arg1, (int)arg2,
10803 target_to_host_signal(arg3)));
10804
10805#ifdef TARGET_NR_set_robust_list
10806 case TARGET_NR_set_robust_list:
10807 case TARGET_NR_get_robust_list:
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820 return -TARGET_ENOSYS;
10821#endif
10822
10823#if defined(TARGET_NR_utimensat)
10824 case TARGET_NR_utimensat:
10825 {
10826 struct timespec *tsp, ts[2];
10827 if (!arg3) {
10828 tsp = NULL;
10829 } else {
10830 target_to_host_timespec(ts, arg3);
10831 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
10832 tsp = ts;
10833 }
10834 if (!arg2)
10835 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
10836 else {
10837 if (!(p = lock_user_string(arg2))) {
10838 return -TARGET_EFAULT;
10839 }
10840 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
10841 unlock_user(p, arg2, 0);
10842 }
10843 }
10844 return ret;
10845#endif
10846 case TARGET_NR_futex:
10847 return do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
10848#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
10849 case TARGET_NR_inotify_init:
10850 ret = get_errno(sys_inotify_init());
10851 if (ret >= 0) {
10852 fd_trans_register(ret, &target_inotify_trans);
10853 }
10854 return ret;
10855#endif
10856#ifdef CONFIG_INOTIFY1
10857#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
10858 case TARGET_NR_inotify_init1:
10859 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
10860 fcntl_flags_tbl)));
10861 if (ret >= 0) {
10862 fd_trans_register(ret, &target_inotify_trans);
10863 }
10864 return ret;
10865#endif
10866#endif
10867#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
10868 case TARGET_NR_inotify_add_watch:
10869 p = lock_user_string(arg2);
10870 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
10871 unlock_user(p, arg2, 0);
10872 return ret;
10873#endif
10874#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
10875 case TARGET_NR_inotify_rm_watch:
10876 return get_errno(sys_inotify_rm_watch(arg1, arg2));
10877#endif
10878
10879#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
10880 case TARGET_NR_mq_open:
10881 {
10882 struct mq_attr posix_mq_attr;
10883 struct mq_attr *pposix_mq_attr;
10884 int host_flags;
10885
10886 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
10887 pposix_mq_attr = NULL;
10888 if (arg4) {
10889 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
10890 return -TARGET_EFAULT;
10891 }
10892 pposix_mq_attr = &posix_mq_attr;
10893 }
10894 p = lock_user_string(arg1 - 1);
10895 if (!p) {
10896 return -TARGET_EFAULT;
10897 }
10898 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
10899 unlock_user (p, arg1, 0);
10900 }
10901 return ret;
10902
10903 case TARGET_NR_mq_unlink:
10904 p = lock_user_string(arg1 - 1);
10905 if (!p) {
10906 return -TARGET_EFAULT;
10907 }
10908 ret = get_errno(mq_unlink(p));
10909 unlock_user (p, arg1, 0);
10910 return ret;
10911
10912 case TARGET_NR_mq_timedsend:
10913 {
10914 struct timespec ts;
10915
10916 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10917 if (arg5 != 0) {
10918 target_to_host_timespec(&ts, arg5);
10919 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
10920 host_to_target_timespec(arg5, &ts);
10921 } else {
10922 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
10923 }
10924 unlock_user (p, arg2, arg3);
10925 }
10926 return ret;
10927
10928 case TARGET_NR_mq_timedreceive:
10929 {
10930 struct timespec ts;
10931 unsigned int prio;
10932
10933 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10934 if (arg5 != 0) {
10935 target_to_host_timespec(&ts, arg5);
10936 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
10937 &prio, &ts));
10938 host_to_target_timespec(arg5, &ts);
10939 } else {
10940 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
10941 &prio, NULL));
10942 }
10943 unlock_user (p, arg2, arg3);
10944 if (arg4 != 0)
10945 put_user_u32(prio, arg4);
10946 }
10947 return ret;
10948
10949
10950
10951
10952
10953 case TARGET_NR_mq_getsetattr:
10954 {
10955 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
10956 ret = 0;
10957 if (arg2 != 0) {
10958 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
10959 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
10960 &posix_mq_attr_out));
10961 } else if (arg3 != 0) {
10962 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
10963 }
10964 if (ret == 0 && arg3 != 0) {
10965 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
10966 }
10967 }
10968 return ret;
10969#endif
10970
10971#ifdef CONFIG_SPLICE
10972#ifdef TARGET_NR_tee
10973 case TARGET_NR_tee:
10974 {
10975 ret = get_errno(tee(arg1,arg2,arg3,arg4));
10976 }
10977 return ret;
10978#endif
10979#ifdef TARGET_NR_splice
10980 case TARGET_NR_splice:
10981 {
10982 loff_t loff_in, loff_out;
10983 loff_t *ploff_in = NULL, *ploff_out = NULL;
10984 if (arg2) {
10985 if (get_user_u64(loff_in, arg2)) {
10986 return -TARGET_EFAULT;
10987 }
10988 ploff_in = &loff_in;
10989 }
10990 if (arg4) {
10991 if (get_user_u64(loff_out, arg4)) {
10992 return -TARGET_EFAULT;
10993 }
10994 ploff_out = &loff_out;
10995 }
10996 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
10997 if (arg2) {
10998 if (put_user_u64(loff_in, arg2)) {
10999 return -TARGET_EFAULT;
11000 }
11001 }
11002 if (arg4) {
11003 if (put_user_u64(loff_out, arg4)) {
11004 return -TARGET_EFAULT;
11005 }
11006 }
11007 }
11008 return ret;
11009#endif
11010#ifdef TARGET_NR_vmsplice
11011 case TARGET_NR_vmsplice:
11012 {
11013 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
11014 if (vec != NULL) {
11015 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
11016 unlock_iovec(vec, arg2, arg3, 0);
11017 } else {
11018 ret = -host_to_target_errno(errno);
11019 }
11020 }
11021 return ret;
11022#endif
11023#endif
11024#ifdef CONFIG_EVENTFD
11025#if defined(TARGET_NR_eventfd)
11026 case TARGET_NR_eventfd:
11027 ret = get_errno(eventfd(arg1, 0));
11028 if (ret >= 0) {
11029 fd_trans_register(ret, &target_eventfd_trans);
11030 }
11031 return ret;
11032#endif
11033#if defined(TARGET_NR_eventfd2)
11034 case TARGET_NR_eventfd2:
11035 {
11036 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
11037 if (arg2 & TARGET_O_NONBLOCK) {
11038 host_flags |= O_NONBLOCK;
11039 }
11040 if (arg2 & TARGET_O_CLOEXEC) {
11041 host_flags |= O_CLOEXEC;
11042 }
11043 ret = get_errno(eventfd(arg1, host_flags));
11044 if (ret >= 0) {
11045 fd_trans_register(ret, &target_eventfd_trans);
11046 }
11047 return ret;
11048 }
11049#endif
11050#endif
11051#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
11052 case TARGET_NR_fallocate:
11053#if TARGET_ABI_BITS == 32
11054 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
11055 target_offset64(arg5, arg6)));
11056#else
11057 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
11058#endif
11059 return ret;
11060#endif
11061#if defined(CONFIG_SYNC_FILE_RANGE)
11062#if defined(TARGET_NR_sync_file_range)
11063 case TARGET_NR_sync_file_range:
11064#if TARGET_ABI_BITS == 32
11065#if defined(TARGET_MIPS)
11066 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11067 target_offset64(arg5, arg6), arg7));
11068#else
11069 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
11070 target_offset64(arg4, arg5), arg6));
11071#endif
11072#else
11073 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
11074#endif
11075 return ret;
11076#endif
11077#if defined(TARGET_NR_sync_file_range2)
11078 case TARGET_NR_sync_file_range2:
11079
11080#if TARGET_ABI_BITS == 32
11081 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11082 target_offset64(arg5, arg6), arg2));
11083#else
11084 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
11085#endif
11086 return ret;
11087#endif
11088#endif
11089#if defined(TARGET_NR_signalfd4)
11090 case TARGET_NR_signalfd4:
11091 return do_signalfd4(arg1, arg2, arg4);
11092#endif
11093#if defined(TARGET_NR_signalfd)
11094 case TARGET_NR_signalfd:
11095 return do_signalfd4(arg1, arg2, 0);
11096#endif
11097#if defined(CONFIG_EPOLL)
11098#if defined(TARGET_NR_epoll_create)
11099 case TARGET_NR_epoll_create:
11100 return get_errno(epoll_create(arg1));
11101#endif
11102#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
11103 case TARGET_NR_epoll_create1:
11104 return get_errno(epoll_create1(arg1));
11105#endif
11106#if defined(TARGET_NR_epoll_ctl)
11107 case TARGET_NR_epoll_ctl:
11108 {
11109 struct epoll_event ep;
11110 struct epoll_event *epp = 0;
11111 if (arg4) {
11112 struct target_epoll_event *target_ep;
11113 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
11114 return -TARGET_EFAULT;
11115 }
11116 ep.events = tswap32(target_ep->events);
11117
11118
11119
11120
11121 ep.data.u64 = tswap64(target_ep->data.u64);
11122 unlock_user_struct(target_ep, arg4, 0);
11123 epp = &ep;
11124 }
11125 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
11126 }
11127#endif
11128
11129#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
11130#if defined(TARGET_NR_epoll_wait)
11131 case TARGET_NR_epoll_wait:
11132#endif
11133#if defined(TARGET_NR_epoll_pwait)
11134 case TARGET_NR_epoll_pwait:
11135#endif
11136 {
11137 struct target_epoll_event *target_ep;
11138 struct epoll_event *ep;
11139 int epfd = arg1;
11140 int maxevents = arg3;
11141 int timeout = arg4;
11142
11143 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
11144 return -TARGET_EINVAL;
11145 }
11146
11147 target_ep = lock_user(VERIFY_WRITE, arg2,
11148 maxevents * sizeof(struct target_epoll_event), 1);
11149 if (!target_ep) {
11150 return -TARGET_EFAULT;
11151 }
11152
11153 ep = g_try_new(struct epoll_event, maxevents);
11154 if (!ep) {
11155 unlock_user(target_ep, arg2, 0);
11156 return -TARGET_ENOMEM;
11157 }
11158
11159 switch (num) {
11160#if defined(TARGET_NR_epoll_pwait)
11161 case TARGET_NR_epoll_pwait:
11162 {
11163 target_sigset_t *target_set;
11164 sigset_t _set, *set = &_set;
11165
11166 if (arg5) {
11167 if (arg6 != sizeof(target_sigset_t)) {
11168 ret = -TARGET_EINVAL;
11169 break;
11170 }
11171
11172 target_set = lock_user(VERIFY_READ, arg5,
11173 sizeof(target_sigset_t), 1);
11174 if (!target_set) {
11175 ret = -TARGET_EFAULT;
11176 break;
11177 }
11178 target_to_host_sigset(set, target_set);
11179 unlock_user(target_set, arg5, 0);
11180 } else {
11181 set = NULL;
11182 }
11183
11184 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11185 set, SIGSET_T_SIZE));
11186 break;
11187 }
11188#endif
11189#if defined(TARGET_NR_epoll_wait)
11190 case TARGET_NR_epoll_wait:
11191 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11192 NULL, 0));
11193 break;
11194#endif
11195 default:
11196 ret = -TARGET_ENOSYS;
11197 }
11198 if (!is_error(ret)) {
11199 int i;
11200 for (i = 0; i < ret; i++) {
11201 target_ep[i].events = tswap32(ep[i].events);
11202 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
11203 }
11204 unlock_user(target_ep, arg2,
11205 ret * sizeof(struct target_epoll_event));
11206 } else {
11207 unlock_user(target_ep, arg2, 0);
11208 }
11209 g_free(ep);
11210 return ret;
11211 }
11212#endif
11213#endif
11214#ifdef TARGET_NR_prlimit64
11215 case TARGET_NR_prlimit64:
11216 {
11217
11218 struct target_rlimit64 *target_rnew, *target_rold;
11219 struct host_rlimit64 rnew, rold, *rnewp = 0;
11220 int resource = target_to_host_resource(arg2);
11221 if (arg3) {
11222 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
11223 return -TARGET_EFAULT;
11224 }
11225 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
11226 rnew.rlim_max = tswap64(target_rnew->rlim_max);
11227 unlock_user_struct(target_rnew, arg3, 0);
11228 rnewp = &rnew;
11229 }
11230
11231 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
11232 if (!is_error(ret) && arg4) {
11233 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
11234 return -TARGET_EFAULT;
11235 }
11236 target_rold->rlim_cur = tswap64(rold.rlim_cur);
11237 target_rold->rlim_max = tswap64(rold.rlim_max);
11238 unlock_user_struct(target_rold, arg4, 1);
11239 }
11240 return ret;
11241 }
11242#endif
11243#ifdef TARGET_NR_gethostname
11244 case TARGET_NR_gethostname:
11245 {
11246 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
11247 if (name) {
11248 ret = get_errno(gethostname(name, arg2));
11249 unlock_user(name, arg1, arg2);
11250 } else {
11251 ret = -TARGET_EFAULT;
11252 }
11253 return ret;
11254 }
11255#endif
11256#ifdef TARGET_NR_atomic_cmpxchg_32
11257 case TARGET_NR_atomic_cmpxchg_32:
11258 {
11259
11260 abi_ulong mem_value;
11261 if (get_user_u32(mem_value, arg6)) {
11262 target_siginfo_t info;
11263 info.si_signo = SIGSEGV;
11264 info.si_errno = 0;
11265 info.si_code = TARGET_SEGV_MAPERR;
11266 info._sifields._sigfault._addr = arg6;
11267 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11268 QEMU_SI_FAULT, &info);
11269 ret = 0xdeadbeef;
11270
11271 }
11272 if (mem_value == arg2)
11273 put_user_u32(arg1, arg6);
11274 return mem_value;
11275 }
11276#endif
11277#ifdef TARGET_NR_atomic_barrier
11278 case TARGET_NR_atomic_barrier:
11279
11280
11281 return 0;
11282#endif
11283
11284#ifdef TARGET_NR_timer_create
11285 case TARGET_NR_timer_create:
11286 {
11287
11288
11289 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
11290
11291 int clkid = arg1;
11292 int timer_index = next_free_host_timer();
11293
11294 if (timer_index < 0) {
11295 ret = -TARGET_EAGAIN;
11296 } else {
11297 timer_t *phtimer = g_posix_timers + timer_index;
11298
11299 if (arg2) {
11300 phost_sevp = &host_sevp;
11301 ret = target_to_host_sigevent(phost_sevp, arg2);
11302 if (ret != 0) {
11303 return ret;
11304 }
11305 }
11306
11307 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
11308 if (ret) {
11309 phtimer = NULL;
11310 } else {
11311 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
11312 return -TARGET_EFAULT;
11313 }
11314 }
11315 }
11316 return ret;
11317 }
11318#endif
11319
11320#ifdef TARGET_NR_timer_settime
11321 case TARGET_NR_timer_settime:
11322 {
11323
11324
11325 target_timer_t timerid = get_timer_id(arg1);
11326
11327 if (timerid < 0) {
11328 ret = timerid;
11329 } else if (arg3 == 0) {
11330 ret = -TARGET_EINVAL;
11331 } else {
11332 timer_t htimer = g_posix_timers[timerid];
11333 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
11334
11335 if (target_to_host_itimerspec(&hspec_new, arg3)) {
11336 return -TARGET_EFAULT;
11337 }
11338 ret = get_errno(
11339 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
11340 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
11341 return -TARGET_EFAULT;
11342 }
11343 }
11344 return ret;
11345 }
11346#endif
11347
11348#ifdef TARGET_NR_timer_gettime
11349 case TARGET_NR_timer_gettime:
11350 {
11351
11352 target_timer_t timerid = get_timer_id(arg1);
11353
11354 if (timerid < 0) {
11355 ret = timerid;
11356 } else if (!arg2) {
11357 ret = -TARGET_EFAULT;
11358 } else {
11359 timer_t htimer = g_posix_timers[timerid];
11360 struct itimerspec hspec;
11361 ret = get_errno(timer_gettime(htimer, &hspec));
11362
11363 if (host_to_target_itimerspec(arg2, &hspec)) {
11364 ret = -TARGET_EFAULT;
11365 }
11366 }
11367 return ret;
11368 }
11369#endif
11370
11371#ifdef TARGET_NR_timer_getoverrun
11372 case TARGET_NR_timer_getoverrun:
11373 {
11374
11375 target_timer_t timerid = get_timer_id(arg1);
11376
11377 if (timerid < 0) {
11378 ret = timerid;
11379 } else {
11380 timer_t htimer = g_posix_timers[timerid];
11381 ret = get_errno(timer_getoverrun(htimer));
11382 }
11383 fd_trans_unregister(ret);
11384 return ret;
11385 }
11386#endif
11387
11388#ifdef TARGET_NR_timer_delete
11389 case TARGET_NR_timer_delete:
11390 {
11391
11392 target_timer_t timerid = get_timer_id(arg1);
11393
11394 if (timerid < 0) {
11395 ret = timerid;
11396 } else {
11397 timer_t htimer = g_posix_timers[timerid];
11398 ret = get_errno(timer_delete(htimer));
11399 g_posix_timers[timerid] = 0;
11400 }
11401 return ret;
11402 }
11403#endif
11404
11405#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11406 case TARGET_NR_timerfd_create:
11407 return get_errno(timerfd_create(arg1,
11408 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
11409#endif
11410
11411#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11412 case TARGET_NR_timerfd_gettime:
11413 {
11414 struct itimerspec its_curr;
11415
11416 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11417
11418 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
11419 return -TARGET_EFAULT;
11420 }
11421 }
11422 return ret;
11423#endif
11424
11425#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11426 case TARGET_NR_timerfd_settime:
11427 {
11428 struct itimerspec its_new, its_old, *p_new;
11429
11430 if (arg3) {
11431 if (target_to_host_itimerspec(&its_new, arg3)) {
11432 return -TARGET_EFAULT;
11433 }
11434 p_new = &its_new;
11435 } else {
11436 p_new = NULL;
11437 }
11438
11439 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11440
11441 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
11442 return -TARGET_EFAULT;
11443 }
11444 }
11445 return ret;
11446#endif
11447
11448#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11449 case TARGET_NR_ioprio_get:
11450 return get_errno(ioprio_get(arg1, arg2));
11451#endif
11452
11453#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11454 case TARGET_NR_ioprio_set:
11455 return get_errno(ioprio_set(arg1, arg2, arg3));
11456#endif
11457
11458#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11459 case TARGET_NR_setns:
11460 return get_errno(setns(arg1, arg2));
11461#endif
11462#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11463 case TARGET_NR_unshare:
11464 return get_errno(unshare(arg1));
11465#endif
11466#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
11467 case TARGET_NR_kcmp:
11468 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
11469#endif
11470#ifdef TARGET_NR_swapcontext
11471 case TARGET_NR_swapcontext:
11472
11473 return do_swapcontext(cpu_env, arg1, arg2, arg3);
11474#endif
11475
11476 default:
11477 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
11478 return -TARGET_ENOSYS;
11479 }
11480 return ret;
11481}
11482
11483abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
11484 abi_long arg2, abi_long arg3, abi_long arg4,
11485 abi_long arg5, abi_long arg6, abi_long arg7,
11486 abi_long arg8)
11487{
11488 CPUState *cpu = ENV_GET_CPU(cpu_env);
11489 abi_long ret;
11490
11491#ifdef DEBUG_ERESTARTSYS
11492
11493
11494
11495
11496 {
11497 static bool flag;
11498 flag = !flag;
11499 if (flag) {
11500 return -TARGET_ERESTARTSYS;
11501 }
11502 }
11503#endif
11504
11505 trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
11506 arg5, arg6, arg7, arg8);
11507
11508 if (unlikely(do_strace)) {
11509 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
11510 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11511 arg5, arg6, arg7, arg8);
11512 print_syscall_ret(num, ret);
11513 } else {
11514 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11515 arg5, arg6, arg7, arg8);
11516 }
11517
11518 trace_guest_user_syscall_ret(cpu, num, ret);
11519 return ret;
11520}
11521