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11#include <linux/kernel.h>
12#include <linux/sched.h>
13#include <linux/capability.h>
14#include <linux/fs.h>
15#include <linux/mm.h>
16#include <linux/file.h>
17#include <linux/signal.h>
18#include <linux/resource.h>
19#include <linux/times.h>
20#include <linux/smp.h>
21#include <linux/sem.h>
22#include <linux/msg.h>
23#include <linux/shm.h>
24#include <linux/uio.h>
25#include <linux/nfs_fs.h>
26#include <linux/quota.h>
27#include <linux/poll.h>
28#include <linux/personality.h>
29#include <linux/stat.h>
30#include <linux/filter.h>
31#include <linux/highmem.h>
32#include <linux/highuid.h>
33#include <linux/mman.h>
34#include <linux/ipv6.h>
35#include <linux/in.h>
36#include <linux/icmpv6.h>
37#include <linux/syscalls.h>
38#include <linux/sysctl.h>
39#include <linux/binfmts.h>
40#include <linux/dnotify.h>
41#include <linux/security.h>
42#include <linux/compat.h>
43#include <linux/vfs.h>
44#include <linux/ptrace.h>
45#include <linux/slab.h>
46
47#include <asm/types.h>
48#include <linux/uaccess.h>
49#include <asm/fpumacro.h>
50#include <asm/mmu_context.h>
51#include <asm/compat_signal.h>
52
53#include "systbls.h"
54
55COMPAT_SYSCALL_DEFINE3(truncate64, const char __user *, path, u32, high, u32, low)
56{
57 return ksys_truncate(path, ((u64)high << 32) | low);
58}
59
60COMPAT_SYSCALL_DEFINE3(ftruncate64, unsigned int, fd, u32, high, u32, low)
61{
62 return ksys_ftruncate(fd, ((u64)high << 32) | low);
63}
64
65static int cp_compat_stat64(struct kstat *stat,
66 struct compat_stat64 __user *statbuf)
67{
68 int err;
69
70 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
71 err |= put_user(stat->ino, &statbuf->st_ino);
72 err |= put_user(stat->mode, &statbuf->st_mode);
73 err |= put_user(stat->nlink, &statbuf->st_nlink);
74 err |= put_user(from_kuid_munged(current_user_ns(), stat->uid), &statbuf->st_uid);
75 err |= put_user(from_kgid_munged(current_user_ns(), stat->gid), &statbuf->st_gid);
76 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
77 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
78 err |= put_user(stat->size, &statbuf->st_size);
79 err |= put_user(stat->blksize, &statbuf->st_blksize);
80 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
81 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
82 err |= put_user(stat->blocks, &statbuf->st_blocks);
83 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
84 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
85 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
86 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
87 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
88 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
89 err |= put_user(0, &statbuf->__unused4);
90 err |= put_user(0, &statbuf->__unused5);
91
92 return err;
93}
94
95COMPAT_SYSCALL_DEFINE2(stat64, const char __user *, filename,
96 struct compat_stat64 __user *, statbuf)
97{
98 struct kstat stat;
99 int error = vfs_stat(filename, &stat);
100
101 if (!error)
102 error = cp_compat_stat64(&stat, statbuf);
103 return error;
104}
105
106COMPAT_SYSCALL_DEFINE2(lstat64, const char __user *, filename,
107 struct compat_stat64 __user *, statbuf)
108{
109 struct kstat stat;
110 int error = vfs_lstat(filename, &stat);
111
112 if (!error)
113 error = cp_compat_stat64(&stat, statbuf);
114 return error;
115}
116
117COMPAT_SYSCALL_DEFINE2(fstat64, unsigned int, fd,
118 struct compat_stat64 __user *, statbuf)
119{
120 struct kstat stat;
121 int error = vfs_fstat(fd, &stat);
122
123 if (!error)
124 error = cp_compat_stat64(&stat, statbuf);
125 return error;
126}
127
128COMPAT_SYSCALL_DEFINE4(fstatat64, unsigned int, dfd,
129 const char __user *, filename,
130 struct compat_stat64 __user *, statbuf, int, flag)
131{
132 struct kstat stat;
133 int error;
134
135 error = vfs_fstatat(dfd, filename, &stat, flag);
136 if (error)
137 return error;
138 return cp_compat_stat64(&stat, statbuf);
139}
140
141COMPAT_SYSCALL_DEFINE3(sparc_sigaction, int, sig,
142 struct compat_old_sigaction __user *,act,
143 struct compat_old_sigaction __user *,oact)
144{
145 WARN_ON_ONCE(sig >= 0);
146 return compat_sys_sigaction(-sig, act, oact);
147}
148
149COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
150 struct compat_sigaction __user *,act,
151 struct compat_sigaction __user *,oact,
152 void __user *,restorer,
153 compat_size_t,sigsetsize)
154{
155 struct k_sigaction new_ka, old_ka;
156 int ret;
157
158
159 if (sigsetsize != sizeof(compat_sigset_t))
160 return -EINVAL;
161
162 if (act) {
163 u32 u_handler, u_restorer;
164
165 new_ka.ka_restorer = restorer;
166 ret = get_user(u_handler, &act->sa_handler);
167 new_ka.sa.sa_handler = compat_ptr(u_handler);
168 ret |= get_compat_sigset(&new_ka.sa.sa_mask, &act->sa_mask);
169 ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
170 ret |= get_user(u_restorer, &act->sa_restorer);
171 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
172 if (ret)
173 return -EFAULT;
174 }
175
176 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
177
178 if (!ret && oact) {
179 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
180 ret |= put_compat_sigset(&oact->sa_mask, &old_ka.sa.sa_mask,
181 sizeof(oact->sa_mask));
182 ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
183 ret |= put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
184 if (ret)
185 ret = -EFAULT;
186 }
187
188 return ret;
189}
190
191COMPAT_SYSCALL_DEFINE5(pread64, unsigned int, fd, char __user *, ubuf,
192 compat_size_t, count, u32, poshi, u32, poslo)
193{
194 return ksys_pread64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
195}
196
197COMPAT_SYSCALL_DEFINE5(pwrite64, unsigned int, fd, char __user *, ubuf,
198 compat_size_t, count, u32, poshi, u32, poslo)
199{
200 return ksys_pwrite64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
201}
202
203COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,
204 compat_size_t, count)
205{
206 return ksys_readahead(fd, ((u64)offhi << 32) | offlo, count);
207}
208
209COMPAT_SYSCALL_DEFINE5(fadvise64, int, fd, u32, offhi, u32, offlo,
210 compat_size_t, len, int, advice)
211{
212 return ksys_fadvise64_64(fd, ((u64)offhi << 32) | offlo, len, advice);
213}
214
215COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, u32, offhi, u32, offlo,
216 u32, lenhi, u32, lenlo, int, advice)
217{
218 return ksys_fadvise64_64(fd,
219 ((u64)offhi << 32) | offlo,
220 ((u64)lenhi << 32) | lenlo,
221 advice);
222}
223
224COMPAT_SYSCALL_DEFINE6(sync_file_range, unsigned int, fd, u32, off_high, u32, off_low,
225 u32, nb_high, u32, nb_low, unsigned int, flags)
226{
227 return ksys_sync_file_range(fd,
228 ((u64)off_high << 32) | off_low,
229 ((u64)nb_high << 32) | nb_low,
230 flags);
231}
232
233COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode, u32, offhi, u32, offlo,
234 u32, lenhi, u32, lenlo)
235{
236 return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
237 ((loff_t)lenhi << 32) | lenlo);
238}
239
