kernel/sys_ni.c

   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  */
  15 asmlinkage long sys_ni_syscall(void);
  16
  17 /*
  18  * Non-implemented system calls get redirected here.
  19  */
  20 asmlinkage 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
  39 COND_SYSCALL(io_setup);
  40 COND_SYSCALL_COMPAT(io_setup);
  41 COND_SYSCALL(io_destroy);
  42 COND_SYSCALL(io_submit);
  43 COND_SYSCALL_COMPAT(io_submit);
  44 COND_SYSCALL(io_cancel);
  45 COND_SYSCALL(io_getevents_time32);
  46 COND_SYSCALL(io_getevents);
  47 COND_SYSCALL(io_pgetevents_time32);
  48 COND_SYSCALL(io_pgetevents);
  49 COND_SYSCALL_COMPAT(io_pgetevents_time32);
  50 COND_SYSCALL_COMPAT(io_pgetevents);
  51 COND_SYSCALL(io_uring_setup);
  52 COND_SYSCALL(io_uring_enter);
  53 COND_SYSCALL(io_uring_register);
  54
  55 /* fs/xattr.c */
  56
  57 /* fs/dcache.c */
  58
  59 /* fs/cookies.c */
  60 COND_SYSCALL(lookup_dcookie);
  61 COND_SYSCALL_COMPAT(lookup_dcookie);
  62
  63 /* fs/eventfd.c */
  64 COND_SYSCALL(eventfd2);
  65
  66 /* fs/eventfd.c */
  67 COND_SYSCALL(epoll_create1);
  68 COND_SYSCALL(epoll_ctl);
  69 COND_SYSCALL(epoll_pwait);
  70 COND_SYSCALL_COMPAT(epoll_pwait);
  71 COND_SYSCALL(epoll_pwait2);
  72 COND_SYSCALL_COMPAT(epoll_pwait2);
  73
  74 /* fs/fcntl.c */
  75
  76 /* fs/inotify_user.c */
  77 COND_SYSCALL(inotify_init1);
  78 COND_SYSCALL(inotify_add_watch);
  79 COND_SYSCALL(inotify_rm_watch);
  80
  81 /* fs/ioctl.c */
  82
  83 /* fs/ioprio.c */
  84 COND_SYSCALL(ioprio_set);
  85 COND_SYSCALL(ioprio_get);
  86
  87 /* fs/locks.c */
  88 COND_SYSCALL(flock);
  89
  90 /* fs/namei.c */
  91
  92 /* fs/namespace.c */
  93
  94 /* fs/nfsctl.c */
  95
  96 /* fs/open.c */
  97
  98 /* fs/pipe.c */
  99
 100 /* fs/quota.c */
 101 COND_SYSCALL(quotactl);
 102
 103 /* fs/readdir.c */
 104
 105 /* fs/read_write.c */
 106
 107 /* fs/sendfile.c */
 108
 109 /* fs/select.c */
 110
 111 /* fs/signalfd.c */
 112 COND_SYSCALL(signalfd4);
 113 COND_SYSCALL_COMPAT(signalfd4);
 114
 115 /* fs/splice.c */
 116
 117 /* fs/stat.c */
 118
 119 /* fs/sync.c */
 120
 121 /* fs/timerfd.c */
 122 COND_SYSCALL(timerfd_create);
 123 COND_SYSCALL(timerfd_settime);
 124 COND_SYSCALL(timerfd_settime32);
 125 COND_SYSCALL(timerfd_gettime);
 126 COND_SYSCALL(timerfd_gettime32);
 127
 128 /* fs/utimes.c */
 129
 130 /* kernel/acct.c */
 131 COND_SYSCALL(acct);
 132
 133 /* kernel/capability.c */
 134 COND_SYSCALL(capget);
 135 COND_SYSCALL(capset);
 136
 137 /* kernel/exec_domain.c */
 138
 139 /* kernel/exit.c */
 140
 141 /* kernel/fork.c */
 142 /* __ARCH_WANT_SYS_CLONE3 */
 143 COND_SYSCALL(clone3);
 144
 145 /* kernel/futex.c */
 146 COND_SYSCALL(futex);
 147 COND_SYSCALL(futex_time32);
 148 COND_SYSCALL(set_robust_list);
 149 COND_SYSCALL_COMPAT(set_robust_list);
 150 COND_SYSCALL(get_robust_list);
 151 COND_SYSCALL_COMPAT(get_robust_list);
 152
 153 /* kernel/hrtimer.c */
 154
 155 /* kernel/itimer.c */
 156
 157 /* kernel/kexec.c */
 158 COND_SYSCALL(kexec_load);
 159 COND_SYSCALL_COMPAT(kexec_load);
 160
 161 /* kernel/module.c */
 162 COND_SYSCALL(init_module);
 163 COND_SYSCALL(delete_module);
 164
 165 /* kernel/posix-timers.c */
 166
 167 /* kernel/printk.c */
 168 COND_SYSCALL(syslog);
 169
 170 /* kernel/ptrace.c */
 171
 172 /* kernel/sched/core.c */
 173
 174 /* kernel/sys.c */
 175 COND_SYSCALL(setregid);
 176 COND_SYSCALL(setgid);
 177 COND_SYSCALL(setreuid);
 178 COND_SYSCALL(setuid);
 179 COND_SYSCALL(setresuid);
 180 COND_SYSCALL(getresuid);
 181 COND_SYSCALL(setresgid);
 182 COND_SYSCALL(getresgid);
 183 COND_SYSCALL(setfsuid);
 184 COND_SYSCALL(setfsgid);
 185 COND_SYSCALL(setgroups);
 186 COND_SYSCALL(getgroups);
 187
 188 /* kernel/time.c */
 189
 190 /* kernel/timer.c */
 191
 192 /* ipc/mqueue.c */
 193 COND_SYSCALL(mq_open);
 194 COND_SYSCALL_COMPAT(mq_open);
 195 COND_SYSCALL(mq_unlink);
 196 COND_SYSCALL(mq_timedsend);
 197 COND_SYSCALL(mq_timedsend_time32);
 198 COND_SYSCALL(mq_timedreceive);
 199 COND_SYSCALL(mq_timedreceive_time32);
 200 COND_SYSCALL(mq_notify);
 201 COND_SYSCALL_COMPAT(mq_notify);
 202 COND_SYSCALL(mq_getsetattr);
 203 COND_SYSCALL_COMPAT(mq_getsetattr);
 204
 205 /* ipc/msg.c */
 206 COND_SYSCALL(msgget);
 207 COND_SYSCALL(old_msgctl);
 208 COND_SYSCALL(msgctl);
 209 COND_SYSCALL_COMPAT(msgctl);
 210 COND_SYSCALL_COMPAT(old_msgctl);
 211 COND_SYSCALL(msgrcv);
 212 COND_SYSCALL_COMPAT(msgrcv);
 213 COND_SYSCALL(msgsnd);
 214 COND_SYSCALL_COMPAT(msgsnd);
 215
 216 /* ipc/sem.c */
 217 COND_SYSCALL(semget);
 218 COND_SYSCALL(old_semctl);
 219 COND_SYSCALL(semctl);
 220 COND_SYSCALL_COMPAT(semctl);
 221 COND_SYSCALL_COMPAT(old_semctl);
 222 COND_SYSCALL(semtimedop);
 223 COND_SYSCALL(semtimedop_time32);
 224 COND_SYSCALL(semop);
 225
 226 /* ipc/shm.c */
 227 COND_SYSCALL(shmget);
 228 COND_SYSCALL(old_shmctl);
 229 COND_SYSCALL(shmctl);
 230 COND_SYSCALL_COMPAT(shmctl);
 231 COND_SYSCALL_COMPAT(old_shmctl);
 232 COND_SYSCALL(shmat);
 233 COND_SYSCALL_COMPAT(shmat);
 234 COND_SYSCALL(shmdt);
 235
 236 /* net/socket.c */
 237 COND_SYSCALL(socket);
 238 COND_SYSCALL(socketpair);
 239 COND_SYSCALL(bind);
 240 COND_SYSCALL(listen);
 241 COND_SYSCALL(accept);
 242 COND_SYSCALL(connect);
 243 COND_SYSCALL(getsockname);
 244 COND_SYSCALL(getpeername);
 245 COND_SYSCALL(setsockopt);
 246 COND_SYSCALL_COMPAT(setsockopt);
 247 COND_SYSCALL(getsockopt);
 248 COND_SYSCALL_COMPAT(getsockopt);
 249 COND_SYSCALL(sendto);
 250 COND_SYSCALL(shutdown);
 251 COND_SYSCALL(recvfrom);
 252 COND_SYSCALL_COMPAT(recvfrom);
 253 COND_SYSCALL(sendmsg);
 254 COND_SYSCALL_COMPAT(sendmsg);
 255 COND_SYSCALL(recvmsg);
 256 COND_SYSCALL_COMPAT(recvmsg);
 257
 258 /* mm/filemap.c */
 259
 260 /* mm/nommu.c, also with MMU */
 261 COND_SYSCALL(mremap);
 262
 263 /* security/keys/keyctl.c */
 264 COND_SYSCALL(add_key);
 265 COND_SYSCALL(request_key);
 266 COND_SYSCALL(keyctl);
 267 COND_SYSCALL_COMPAT(keyctl);
 268
 269 /* arch/example/kernel/sys_example.c */
 270
 271 /* mm/fadvise.c */
 272 COND_SYSCALL(fadvise64_64);
 273
 274 /* mm/, CONFIG_MMU only */
 275 COND_SYSCALL(swapon);
 276 COND_SYSCALL(swapoff);
 277 COND_SYSCALL(mprotect);
 278 COND_SYSCALL(msync);
 279 COND_SYSCALL(mlock);
 280 COND_SYSCALL(munlock);
 281 COND_SYSCALL(mlockall);
 282 COND_SYSCALL(munlockall);
 283 COND_SYSCALL(mincore);
 284 COND_SYSCALL(madvise);
 285 COND_SYSCALL(process_madvise);
 286 COND_SYSCALL(remap_file_pages);
 287 COND_SYSCALL(mbind);
 288 COND_SYSCALL_COMPAT(mbind);
 289 COND_SYSCALL(get_mempolicy);
 290 COND_SYSCALL_COMPAT(get_mempolicy);
 291 COND_SYSCALL(set_mempolicy);
 292 COND_SYSCALL_COMPAT(set_mempolicy);
 293 COND_SYSCALL(migrate_pages);
 294 COND_SYSCALL_COMPAT(migrate_pages);
 295 COND_SYSCALL(move_pages);
 296 COND_SYSCALL_COMPAT(move_pages);
 297
 298 COND_SYSCALL(perf_event_open);
 299 COND_SYSCALL(accept4);
 300 COND_SYSCALL(recvmmsg);
 301 COND_SYSCALL(recvmmsg_time32);
 302 COND_SYSCALL_COMPAT(recvmmsg_time32);
 303 COND_SYSCALL_COMPAT(recvmmsg_time64);
 304
 305 /*
 306  * Architecture specific syscalls: see further below
 307  */
 308
 309 /* fanotify */
 310 COND_SYSCALL(fanotify_init);
 311 COND_SYSCALL(fanotify_mark);
 312
 313 /* open by handle */
 314 COND_SYSCALL(name_to_handle_at);
 315 COND_SYSCALL(open_by_handle_at);
 316 COND_SYSCALL_COMPAT(open_by_handle_at);
 317
 318 COND_SYSCALL(sendmmsg);
 319 COND_SYSCALL_COMPAT(sendmmsg);
 320 COND_SYSCALL(process_vm_readv);
 321 COND_SYSCALL_COMPAT(process_vm_readv);
 322 COND_SYSCALL(process_vm_writev);
 323 COND_SYSCALL_COMPAT(process_vm_writev);
 324
 325 /* compare kernel pointers */
 326 COND_SYSCALL(kcmp);
 327
 328 COND_SYSCALL(finit_module);
 329
 330 /* operate on Secure Computing state */
 331 COND_SYSCALL(seccomp);
 332
 333 COND_SYSCALL(memfd_create);
 334
 335 /* access BPF programs and maps */
 336 COND_SYSCALL(bpf);
 337
 338 /* execveat */
 339 COND_SYSCALL(execveat);
 340
 341 COND_SYSCALL(userfaultfd);
 342
 343 /* membarrier */
 344 COND_SYSCALL(membarrier);
 345
 346 COND_SYSCALL(mlock2);
 347
 348 COND_SYSCALL(copy_file_range);
 349
 350 /* memory protection keys */
 351 COND_SYSCALL(pkey_mprotect);
 352 COND_SYSCALL(pkey_alloc);
 353 COND_SYSCALL(pkey_free);
 354
 355
 356 /*
 357  * Architecture specific weak syscall entries.
 358  */
 359
 360 /* pciconfig: alpha, arm, arm64, ia64, sparc */
 361 COND_SYSCALL(pciconfig_read);
 362 COND_SYSCALL(pciconfig_write);
 363 COND_SYSCALL(pciconfig_iobase);
 364
 365 /* sys_socketcall: arm, mips, x86, ... */
 366 COND_SYSCALL(socketcall);
 367 COND_SYSCALL_COMPAT(socketcall);
 368
 369 /* compat syscalls for arm64, x86, ... */
 370 COND_SYSCALL_COMPAT(fanotify_mark);
 371
 372 /* x86 */
 373 COND_SYSCALL(vm86old);
 374 COND_SYSCALL(modify_ldt);
 375 COND_SYSCALL(vm86);
 376 COND_SYSCALL(kexec_file_load);
 377
 378 /* s390 */
 379 COND_SYSCALL(s390_pci_mmio_read);
 380 COND_SYSCALL(s390_pci_mmio_write);
 381 COND_SYSCALL(s390_ipc);
 382 COND_SYSCALL_COMPAT(s390_ipc);
 383
 384 /* powerpc */
 385 COND_SYSCALL(rtas);
 386 COND_SYSCALL(spu_run);
 387 COND_SYSCALL(spu_create);
 388 COND_SYSCALL(subpage_prot);
 389
 390
 391 /*
 392  * Deprecated system calls which are still defined in
 393  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
 394  */
 395
 396 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
 397 COND_SYSCALL(epoll_create);
 398 COND_SYSCALL(inotify_init);
 399 COND_SYSCALL(eventfd);
 400 COND_SYSCALL(signalfd);
 401 COND_SYSCALL_COMPAT(signalfd);
 402
 403 /* __ARCH_WANT_SYSCALL_OFF_T */
 404 COND_SYSCALL(fadvise64);
 405
 406 /* __ARCH_WANT_SYSCALL_DEPRECATED */
 407 COND_SYSCALL(epoll_wait);
 408 COND_SYSCALL(recv);
 409 COND_SYSCALL_COMPAT(recv);
 410 COND_SYSCALL(send);
 411 COND_SYSCALL(bdflush);
 412 COND_SYSCALL(uselib);
 413
 414 /* optional: time32 */
 415 COND_SYSCALL(time32);
 416 COND_SYSCALL(stime32);
 417 COND_SYSCALL(utime32);
 418 COND_SYSCALL(adjtimex_time32);
 419 COND_SYSCALL(sched_rr_get_interval_time32);
 420 COND_SYSCALL(nanosleep_time32);
 421 COND_SYSCALL(rt_sigtimedwait_time32);
 422 COND_SYSCALL_COMPAT(rt_sigtimedwait_time32);
 423 COND_SYSCALL(timer_settime32);
 424 COND_SYSCALL(timer_gettime32);
 425 COND_SYSCALL(clock_settime32);
 426 COND_SYSCALL(clock_gettime32);
 427 COND_SYSCALL(clock_getres_time32);
 428 COND_SYSCALL(clock_nanosleep_time32);
 429 COND_SYSCALL(utimes_time32);
 430 COND_SYSCALL(futimesat_time32);
 431 COND_SYSCALL(pselect6_time32);
 432 COND_SYSCALL_COMPAT(pselect6_time32);
 433 COND_SYSCALL(ppoll_time32);
 434 COND_SYSCALL_COMPAT(ppoll_time32);
 435 COND_SYSCALL(utimensat_time32);
 436 COND_SYSCALL(clock_adjtime32);
 437
 438 /*
 439  * The syscalls below are not found in include/uapi/asm-generic/unistd.h
 440  */
 441
 442 /* obsolete: SGETMASK_SYSCALL */
 443 COND_SYSCALL(sgetmask);
 444 COND_SYSCALL(ssetmask);
 445
 446 /* obsolete: SYSFS_SYSCALL */
 447 COND_SYSCALL(sysfs);
 448
 449 /* obsolete: __ARCH_WANT_SYS_IPC */
 450 COND_SYSCALL(ipc);
 451 COND_SYSCALL_COMPAT(ipc);
 452
 453 /* obsolete: UID16 */
 454 COND_SYSCALL(chown16);
 455 COND_SYSCALL(fchown16);
 456 COND_SYSCALL(getegid16);
 457 COND_SYSCALL(geteuid16);
 458 COND_SYSCALL(getgid16);
 459 COND_SYSCALL(getgroups16);
 460 COND_SYSCALL(getresgid16);
 461 COND_SYSCALL(getresuid16);
 462 COND_SYSCALL(getuid16);
 463 COND_SYSCALL(lchown16);
 464 COND_SYSCALL(setfsgid16);
 465 COND_SYSCALL(setfsuid16);
 466 COND_SYSCALL(setgid16);
 467 COND_SYSCALL(setgroups16);
 468 COND_SYSCALL(setregid16);
 469 COND_SYSCALL(setresgid16);
 470 COND_SYSCALL(setresuid16);
 471 COND_SYSCALL(setreuid16);
 472 COND_SYSCALL(setuid16);
 473
 474 /* restartable sequence */
 475 COND_SYSCALL(rseq);