LXR linux/kernel/sys

   1// SPDX-License-Identifier: GPL-2.0
   2
   3#include <linux/linkage.h>
   4#include <linux/errno.h>
   5
   6#include <asm/unistd.h>
   7
   8#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
   9/* Architectures may override COND_SYSCALL and COND_SYSCALL_COMPAT */
  10#include <asm/syscall_wrapper.h>
  11#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
  12
  13/*  we can't #include <linux/syscalls.h> here,
  14    but tell gcc to not warn with -Wmissing-prototypes  */
  15asmlinkage long sys_ni_syscall(void);
  16
  17/*
  18 * Non-implemented system calls get redirected here.
  19 */
  20asmlinkage long sys_ni_syscall(void)
  21{
  22        return -ENOSYS;
  23}
  24
  25#ifndef COND_SYSCALL
  26#define COND_SYSCALL(name) cond_syscall(sys_##name)
  27#endif /* COND_SYSCALL */
  28
  29#ifndef COND_SYSCALL_COMPAT
  30#define COND_SYSCALL_COMPAT(name) cond_syscall(compat_sys_##name)
  31#endif /* COND_SYSCALL_COMPAT */
  32
  33/*
  34 * This list is kept in the same order as include/uapi/asm-generic/unistd.h.
  35 * Architecture specific entries go below, followed by deprecated or obsolete
  36 * system calls.
  37 */
  38
  39COND_SYSCALL(io_setup);
  40COND_SYSCALL_COMPAT(io_setup);
  41COND_SYSCALL(io_destroy);
  42COND_SYSCALL(io_submit);
  43COND_SYSCALL_COMPAT(io_submit);
  44COND_SYSCALL(io_cancel);
  45COND_SYSCALL(io_getevents_time32);
  46COND_SYSCALL(io_getevents);
  47COND_SYSCALL(io_pgetevents_time32);
  48COND_SYSCALL(io_pgetevents);
  49COND_SYSCALL_COMPAT(io_pgetevents_time32);
  50COND_SYSCALL_COMPAT(io_pgetevents);
  51COND_SYSCALL(io_uring_setup);
  52COND_SYSCALL(io_uring_enter);
  53COND_SYSCALL(io_uring_register);
  54
  55/* fs/xattr.c */
  56
  57/* fs/dcache.c */
  58
  59/* fs/cookies.c */
  60COND_SYSCALL(lookup_dcookie);
  61COND_SYSCALL_COMPAT(lookup_dcookie);
  62
  63/* fs/eventfd.c */
  64COND_SYSCALL(eventfd2);
  65
  66/* fs/eventfd.c */
  67COND_SYSCALL(epoll_create1);
  68COND_SYSCALL(epoll_ctl);
  69COND_SYSCALL(epoll_pwait);
  70COND_SYSCALL_COMPAT(epoll_pwait);
  71
  72/* fs/fcntl.c */
  73
  74/* fs/inotify_user.c */
  75COND_SYSCALL(inotify_init1);
  76COND_SYSCALL(inotify_add_watch);
  77COND_SYSCALL(inotify_rm_watch);
  78
  79/* fs/ioctl.c */
  80
  81/* fs/ioprio.c */
  82COND_SYSCALL(ioprio_set);
  83COND_SYSCALL(ioprio_get);
  84
  85/* fs/locks.c */
  86COND_SYSCALL(flock);
  87
  88/* fs/namei.c */
  89
  90/* fs/namespace.c */
  91
  92/* fs/nfsctl.c */
  93
  94/* fs/open.c */
  95
  96/* fs/pipe.c */
  97
  98/* fs/quota.c */
  99COND_SYSCALL(quotactl);
 100
 101/* fs/readdir.c */
 102
 103/* fs/read_write.c */
 104
 105/* fs/sendfile.c */
 106
 107/* fs/select.c */
 108
 109/* fs/signalfd.c */
 110COND_SYSCALL(signalfd4);
 111COND_SYSCALL_COMPAT(signalfd4);
 112
 113/* fs/splice.c */
 114
 115/* fs/stat.c */
 116
 117/* fs/sync.c */
 118
 119/* fs/timerfd.c */
 120COND_SYSCALL(timerfd_create);
 121COND_SYSCALL(timerfd_settime);
 122COND_SYSCALL(timerfd_settime32);
 123COND_SYSCALL(timerfd_gettime);
 124COND_SYSCALL(timerfd_gettime32);
 125
 126/* fs/utimes.c */
 127
 128/* kernel/acct.c */
 129COND_SYSCALL(acct);
 130
 131/* kernel/capability.c */
 132COND_SYSCALL(capget);
 133COND_SYSCALL(capset);
 134
 135/* kernel/exec_domain.c */
 136
 137/* kernel/exit.c */
 138
 139/* kernel/fork.c */
 140/* __ARCH_WANT_SYS_CLONE3 */
 141COND_SYSCALL(clone3);
 142
 143/* kernel/futex.c */
 144COND_SYSCALL(futex);
 145COND_SYSCALL(futex_time32);
 146COND_SYSCALL(set_robust_list);
 147COND_SYSCALL_COMPAT(set_robust_list);
 148COND_SYSCALL(get_robust_list);
 149COND_SYSCALL_COMPAT(get_robust_list);
 150
 151/* kernel/hrtimer.c */
 152
 153/* kernel/itimer.c */
 154
 155/* kernel/kexec.c */
 156COND_SYSCALL(kexec_load);
 157COND_SYSCALL_COMPAT(kexec_load);
 158
 159/* kernel/module.c */
 160COND_SYSCALL(init_module);
 161COND_SYSCALL(delete_module);
 162
 163/* kernel/posix-timers.c */
 164
 165/* kernel/printk.c */
 166COND_SYSCALL(syslog);
 167
 168/* kernel/ptrace.c */
 169
 170/* kernel/sched/core.c */
 171
 172/* kernel/sys.c */
 173COND_SYSCALL(setregid);
 174COND_SYSCALL(setgid);
 175COND_SYSCALL(setreuid);
 176COND_SYSCALL(setuid);
 177COND_SYSCALL(setresuid);
 178COND_SYSCALL(getresuid);
 179COND_SYSCALL(setresgid);
 180COND_SYSCALL(getresgid);
 181COND_SYSCALL(setfsuid);
 182COND_SYSCALL(setfsgid);
 183COND_SYSCALL(setgroups);
 184COND_SYSCALL(getgroups);
 185
 186/* kernel/time.c */
 187
 188/* kernel/timer.c */
 189
 190/* ipc/mqueue.c */
 191COND_SYSCALL(mq_open);
 192COND_SYSCALL_COMPAT(mq_open);
 193COND_SYSCALL(mq_unlink);
 194COND_SYSCALL(mq_timedsend);
 195COND_SYSCALL(mq_timedsend_time32);
 196COND_SYSCALL(mq_timedreceive);
 197COND_SYSCALL(mq_timedreceive_time32);
 198COND_SYSCALL(mq_notify);
 199COND_SYSCALL_COMPAT(mq_notify);
 200COND_SYSCALL(mq_getsetattr);
 201COND_SYSCALL_COMPAT(mq_getsetattr);
 202
 203/* ipc/msg.c */
 204COND_SYSCALL(msgget);
 205COND_SYSCALL(old_msgctl);
 206COND_SYSCALL(msgctl);
 207COND_SYSCALL_COMPAT(msgctl);
 208COND_SYSCALL_COMPAT(old_msgctl);
 209COND_SYSCALL(msgrcv);
 210COND_SYSCALL_COMPAT(msgrcv);
 211COND_SYSCALL(msgsnd);
 212COND_SYSCALL_COMPAT(msgsnd);
 213
 214/* ipc/sem.c */
 215COND_SYSCALL(semget);
 216COND_SYSCALL(old_semctl);
 217COND_SYSCALL(semctl);
 218COND_SYSCALL_COMPAT(semctl);
 219COND_SYSCALL_COMPAT(old_semctl);
 220COND_SYSCALL(semtimedop);
 221COND_SYSCALL(semtimedop_time32);
 222COND_SYSCALL(semop);
 223
 224/* ipc/shm.c */
 225COND_SYSCALL(shmget);
 226COND_SYSCALL(old_shmctl);
 227COND_SYSCALL(shmctl);
 228COND_SYSCALL_COMPAT(shmctl);
 229COND_SYSCALL_COMPAT(old_shmctl);
 230COND_SYSCALL(shmat);
 231COND_SYSCALL_COMPAT(shmat);
 232COND_SYSCALL(shmdt);
 233
 234/* net/socket.c */
 235COND_SYSCALL(socket);
 236COND_SYSCALL(socketpair);
 237COND_SYSCALL(bind);
 238COND_SYSCALL(listen);
 239COND_SYSCALL(accept);
 240COND_SYSCALL(connect);
 241COND_SYSCALL(getsockname);
 242COND_SYSCALL(getpeername);
 243COND_SYSCALL(setsockopt);
 244COND_SYSCALL_COMPAT(setsockopt);
 245COND_SYSCALL(getsockopt);
 246COND_SYSCALL_COMPAT(getsockopt);
 247COND_SYSCALL(sendto);
 248COND_SYSCALL(shutdown);
 249COND_SYSCALL(recvfrom);
 250COND_SYSCALL_COMPAT(recvfrom);
 251COND_SYSCALL(sendmsg);
 252COND_SYSCALL_COMPAT(sendmsg);
 253COND_SYSCALL(recvmsg);
 254COND_SYSCALL_COMPAT(recvmsg);
 255
 256/* mm/filemap.c */
 257
 258/* mm/nommu.c, also with MMU */
 259COND_SYSCALL(mremap);
 260
 261/* security/keys/keyctl.c */
 262COND_SYSCALL(add_key);
 263COND_SYSCALL(request_key);
 264COND_SYSCALL(keyctl);
 265COND_SYSCALL_COMPAT(keyctl);
 266
 267/* arch/example/kernel/sys_example.c */
 268
 269/* mm/fadvise.c */
 270COND_SYSCALL(fadvise64_64);
 271
 272/* mm/, CONFIG_MMU only */
 273COND_SYSCALL(swapon);
 274COND_SYSCALL(swapoff);
 275COND_SYSCALL(mprotect);
 276COND_SYSCALL(msync);
 277COND_SYSCALL(mlock);
 278COND_SYSCALL(munlock);
 279COND_SYSCALL(mlockall);
 280COND_SYSCALL(munlockall);
 281COND_SYSCALL(mincore);
 282COND_SYSCALL(madvise);
 283COND_SYSCALL(remap_file_pages);
 284COND_SYSCALL(mbind);
 285COND_SYSCALL_COMPAT(mbind);
 286COND_SYSCALL(get_mempolicy);
 287COND_SYSCALL_COMPAT(get_mempolicy);
 288COND_SYSCALL(set_mempolicy);
 289COND_SYSCALL_COMPAT(set_mempolicy);
 290COND_SYSCALL(migrate_pages);
 291COND_SYSCALL_COMPAT(migrate_pages);
 292COND_SYSCALL(move_pages);
 293COND_SYSCALL_COMPAT(move_pages);
 294
 295COND_SYSCALL(perf_event_open);
 296COND_SYSCALL(accept4);
 297COND_SYSCALL(recvmmsg);
 298COND_SYSCALL(recvmmsg_time32);
 299COND_SYSCALL_COMPAT(recvmmsg_time32);
 300COND_SYSCALL_COMPAT(recvmmsg_time64);
 301
 302/*
 303 * Architecture specific syscalls: see further below
 304 */
 305
 306/* fanotify */
 307COND_SYSCALL(fanotify_init);
 308COND_SYSCALL(fanotify_mark);
 309
 310/* open by handle */
 311COND_SYSCALL(name_to_handle_at);
 312COND_SYSCALL(open_by_handle_at);
 313COND_SYSCALL_COMPAT(open_by_handle_at);
 314
 315COND_SYSCALL(sendmmsg);
 316COND_SYSCALL_COMPAT(sendmmsg);
 317COND_SYSCALL(process_vm_readv);
 318COND_SYSCALL_COMPAT(process_vm_readv);
 319COND_SYSCALL(process_vm_writev);
 320COND_SYSCALL_COMPAT(process_vm_writev);
 321
 322/* compare kernel pointers */
 323COND_SYSCALL(kcmp);
 324
 325COND_SYSCALL(finit_module);
 326
 327/* operate on Secure Computing state */
 328COND_SYSCALL(seccomp);
 329
 330COND_SYSCALL(memfd_create);
 331
 332/* access BPF programs and maps */
 333COND_SYSCALL(bpf);
 334
 335/* execveat */
 336COND_SYSCALL(execveat);
 337
 338COND_SYSCALL(userfaultfd);
 339
 340/* membarrier */
 341COND_SYSCALL(membarrier);
 342
 343COND_SYSCALL(mlock2);
 344
 345COND_SYSCALL(copy_file_range);
 346
 347/* memory protection keys */
 348COND_SYSCALL(pkey_mprotect);
 349COND_SYSCALL(pkey_alloc);
 350COND_SYSCALL(pkey_free);
 351
 352
 353/*
 354 * Architecture specific weak syscall entries.
 355 */
 356
 357/* pciconfig: alpha, arm, arm64, ia64, sparc */
 358COND_SYSCALL(pciconfig_read);
 359COND_SYSCALL(pciconfig_write);
 360COND_SYSCALL(pciconfig_iobase);
 361
 362/* sys_socketcall: arm, mips, x86, ... */
 363COND_SYSCALL(socketcall);
 364COND_SYSCALL_COMPAT(socketcall);
 365
 366/* compat syscalls for arm64, x86, ... */
 367COND_SYSCALL_COMPAT(sysctl);
 368COND_SYSCALL_COMPAT(fanotify_mark);
 369
 370/* x86 */
 371COND_SYSCALL(vm86old);
 372COND_SYSCALL(modify_ldt);
 373COND_SYSCALL_COMPAT(quotactl32);
 374COND_SYSCALL(vm86);
 375COND_SYSCALL(kexec_file_load);
 376
 377/* s390 */
 378COND_SYSCALL(s390_pci_mmio_read);
 379COND_SYSCALL(s390_pci_mmio_write);
 380COND_SYSCALL(s390_ipc);
 381COND_SYSCALL_COMPAT(s390_ipc);
 382
 383/* powerpc */
 384COND_SYSCALL(rtas);
 385COND_SYSCALL(spu_run);
 386COND_SYSCALL(spu_create);
 387COND_SYSCALL(subpage_prot);
 388
 389
 390/*
 391 * Deprecated system calls which are still defined in
 392 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
 393 */
 394
 395/* __ARCH_WANT_SYSCALL_NO_FLAGS */
 396COND_SYSCALL(epoll_create);
 397COND_SYSCALL(inotify_init);
 398COND_SYSCALL(eventfd);
 399COND_SYSCALL(signalfd);
 400COND_SYSCALL_COMPAT(signalfd);
 401
 402/* __ARCH_WANT_SYSCALL_OFF_T */
 403COND_SYSCALL(fadvise64);
 404
 405/* __ARCH_WANT_SYSCALL_DEPRECATED */
 406COND_SYSCALL(epoll_wait);
 407COND_SYSCALL(recv);
 408COND_SYSCALL_COMPAT(recv);
 409COND_SYSCALL(send);
 410COND_SYSCALL(bdflush);
 411COND_SYSCALL(uselib);
 412
 413
 414/*
 415 * The syscalls below are not found in include/uapi/asm-generic/unistd.h
 416 */
 417
 418/* obsolete: SGETMASK_SYSCALL */
 419COND_SYSCALL(sgetmask);
 420COND_SYSCALL(ssetmask);
 421
 422/* obsolete: SYSFS_SYSCALL */
 423COND_SYSCALL(sysfs);
 424
 425/* obsolete: __ARCH_WANT_SYS_IPC */
 426COND_SYSCALL(ipc);
 427COND_SYSCALL_COMPAT(ipc);
 428
 429/* obsolete: UID16 */
 430COND_SYSCALL(chown16);
 431COND_SYSCALL(fchown16);
 432COND_SYSCALL(getegid16);
 433COND_SYSCALL(geteuid16);
 434COND_SYSCALL(getgid16);
 435COND_SYSCALL(getgroups16);
 436COND_SYSCALL(getresgid16);
 437COND_SYSCALL(getresuid16);
 438COND_SYSCALL(getuid16);
 439COND_SYSCALL(lchown16);
 440COND_SYSCALL(setfsgid16);
 441COND_SYSCALL(setfsuid16);
 442COND_SYSCALL(setgid16);
 443COND_SYSCALL(setgroups16);
 444COND_SYSCALL(setregid16);
 445COND_SYSCALL(setresgid16);
 446COND_SYSCALL(setresuid16);
 447COND_SYSCALL(setreuid16);
 448COND_SYSCALL(setuid16);
 449
 450/* restartable sequence */
 451COND_SYSCALL(rseq);
 452