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
  72 /* fs/fcntl.c */
  73
  74 /* fs/inotify_user.c */
  75 COND_SYSCALL(inotify_init1);
  76 COND_SYSCALL(inotify_add_watch);
  77 COND_SYSCALL(inotify_rm_watch);
  78
  79 /* fs/ioctl.c */
  80
  81 /* fs/ioprio.c */
  82 COND_SYSCALL(ioprio_set);
  83 COND_SYSCALL(ioprio_get);
  84
  85 /* fs/locks.c */
  86 COND_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 */
  99 COND_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 */
 110 COND_SYSCALL(signalfd4);
 111 COND_SYSCALL_COMPAT(signalfd4);
 112
 113 /* fs/splice.c */
 114
 115 /* fs/stat.c */
 116
 117 /* fs/sync.c */
 118
 119 /* fs/timerfd.c */
 120 COND_SYSCALL(timerfd_create);
 121 COND_SYSCALL(timerfd_settime);
 122 COND_SYSCALL(timerfd_settime32);
 123 COND_SYSCALL(timerfd_gettime);
 124 COND_SYSCALL(timerfd_gettime32);
 125
 126 /* fs/utimes.c */
 127
 128 /* kernel/acct.c */
 129 COND_SYSCALL(acct);
 130
 131 /* kernel/capability.c */
 132 COND_SYSCALL(capget);
 133 COND_SYSCALL(capset);
 134
 135 /* kernel/exec_domain.c */
 136
 137 /* kernel/exit.c */
 138
 139 /* kernel/fork.c */
 140
 141 /* kernel/futex.c */
 142 COND_SYSCALL(futex);
 143 COND_SYSCALL(futex_time32);
 144 COND_SYSCALL(set_robust_list);
 145 COND_SYSCALL_COMPAT(set_robust_list);
 146 COND_SYSCALL(get_robust_list);
 147 COND_SYSCALL_COMPAT(get_robust_list);
 148
 149 /* kernel/hrtimer.c */
 150
 151 /* kernel/itimer.c */
 152
 153 /* kernel/kexec.c */
 154 COND_SYSCALL(kexec_load);
 155 COND_SYSCALL_COMPAT(kexec_load);
 156
 157 /* kernel/module.c */
 158 COND_SYSCALL(init_module);
 159 COND_SYSCALL(delete_module);
 160
 161 /* kernel/posix-timers.c */
 162
 163 /* kernel/printk.c */
 164 COND_SYSCALL(syslog);
 165
 166 /* kernel/ptrace.c */
 167
 168 /* kernel/sched/core.c */
 169
 170 /* kernel/sys.c */
 171 COND_SYSCALL(setregid);
 172 COND_SYSCALL(setgid);
 173 COND_SYSCALL(setreuid);
 174 COND_SYSCALL(setuid);
 175 COND_SYSCALL(setresuid);
 176 COND_SYSCALL(getresuid);
 177 COND_SYSCALL(setresgid);
 178 COND_SYSCALL(getresgid);
 179 COND_SYSCALL(setfsuid);
 180 COND_SYSCALL(setfsgid);
 181 COND_SYSCALL(setgroups);
 182 COND_SYSCALL(getgroups);
 183
 184 /* kernel/time.c */
 185
 186 /* kernel/timer.c */
 187
 188 /* ipc/mqueue.c */
 189 COND_SYSCALL(mq_open);
 190 COND_SYSCALL_COMPAT(mq_open);
 191 COND_SYSCALL(mq_unlink);
 192 COND_SYSCALL(mq_timedsend);
 193 COND_SYSCALL(mq_timedsend_time32);
 194 COND_SYSCALL(mq_timedreceive);
 195 COND_SYSCALL(mq_timedreceive_time32);
 196 COND_SYSCALL(mq_notify);
 197 COND_SYSCALL_COMPAT(mq_notify);
 198 COND_SYSCALL(mq_getsetattr);
 199 COND_SYSCALL_COMPAT(mq_getsetattr);
 200
 201 /* ipc/msg.c */
 202 COND_SYSCALL(msgget);
 203 COND_SYSCALL(old_msgctl);
 204 COND_SYSCALL(msgctl);
 205 COND_SYSCALL_COMPAT(msgctl);
 206 COND_SYSCALL_COMPAT(old_msgctl);
 207 COND_SYSCALL(msgrcv);
 208 COND_SYSCALL_COMPAT(msgrcv);
 209 COND_SYSCALL(msgsnd);
 210 COND_SYSCALL_COMPAT(msgsnd);
 211
 212 /* ipc/sem.c */
 213 COND_SYSCALL(semget);
 214 COND_SYSCALL(old_semctl);
 215 COND_SYSCALL(semctl);
 216 COND_SYSCALL_COMPAT(semctl);
 217 COND_SYSCALL_COMPAT(old_semctl);
 218 COND_SYSCALL(semtimedop);
 219 COND_SYSCALL(semtimedop_time32);
 220 COND_SYSCALL(semop);
 221
 222 /* ipc/shm.c */
 223 COND_SYSCALL(shmget);
 224 COND_SYSCALL(old_shmctl);
 225 COND_SYSCALL(shmctl);
 226 COND_SYSCALL_COMPAT(shmctl);
 227 COND_SYSCALL_COMPAT(old_shmctl);
 228 COND_SYSCALL(shmat);
 229 COND_SYSCALL_COMPAT(shmat);
 230 COND_SYSCALL(shmdt);
 231
 232 /* net/socket.c */
 233 COND_SYSCALL(socket);
 234 COND_SYSCALL(socketpair);
 235 COND_SYSCALL(bind);
 236 COND_SYSCALL(listen);
 237 COND_SYSCALL(accept);
 238 COND_SYSCALL(connect);
 239 COND_SYSCALL(getsockname);
 240 COND_SYSCALL(getpeername);
 241 COND_SYSCALL(setsockopt);
 242 COND_SYSCALL_COMPAT(setsockopt);
 243 COND_SYSCALL(getsockopt);
 244 COND_SYSCALL_COMPAT(getsockopt);
 245 COND_SYSCALL(sendto);
 246 COND_SYSCALL(shutdown);
 247 COND_SYSCALL(recvfrom);
 248 COND_SYSCALL_COMPAT(recvfrom);
 249 COND_SYSCALL(sendmsg);
 250 COND_SYSCALL_COMPAT(sendmsg);
 251 COND_SYSCALL(recvmsg);
 252 COND_SYSCALL_COMPAT(recvmsg);
 253
 254 /* mm/filemap.c */
 255
 256 /* mm/nommu.c, also with MMU */
 257 COND_SYSCALL(mremap);
 258
 259 /* security/keys/keyctl.c */
 260 COND_SYSCALL(add_key);
 261 COND_SYSCALL(request_key);
 262 COND_SYSCALL(keyctl);
 263 COND_SYSCALL_COMPAT(keyctl);
 264
 265 /* arch/example/kernel/sys_example.c */
 266
 267 /* mm/fadvise.c */
 268 COND_SYSCALL(fadvise64_64);
 269
 270 /* mm/, CONFIG_MMU only */
 271 COND_SYSCALL(swapon);
 272 COND_SYSCALL(swapoff);
 273 COND_SYSCALL(mprotect);
 274 COND_SYSCALL(msync);
 275 COND_SYSCALL(mlock);
 276 COND_SYSCALL(munlock);
 277 COND_SYSCALL(mlockall);
 278 COND_SYSCALL(munlockall);
 279 COND_SYSCALL(mincore);
 280 COND_SYSCALL(madvise);
 281 COND_SYSCALL(remap_file_pages);
 282 COND_SYSCALL(mbind);
 283 COND_SYSCALL_COMPAT(mbind);
 284 COND_SYSCALL(get_mempolicy);
 285 COND_SYSCALL_COMPAT(get_mempolicy);
 286 COND_SYSCALL(set_mempolicy);
 287 COND_SYSCALL_COMPAT(set_mempolicy);
 288 COND_SYSCALL(migrate_pages);
 289 COND_SYSCALL_COMPAT(migrate_pages);
 290 COND_SYSCALL(move_pages);
 291 COND_SYSCALL_COMPAT(move_pages);
 292
 293 COND_SYSCALL(perf_event_open);
 294 COND_SYSCALL(accept4);
 295 COND_SYSCALL(recvmmsg);
 296 COND_SYSCALL(recvmmsg_time32);
 297 COND_SYSCALL_COMPAT(recvmmsg_time32);
 298 COND_SYSCALL_COMPAT(recvmmsg_time64);
 299
 300 /*
 301  * Architecture specific syscalls: see further below
 302  */
 303
 304 /* fanotify */
 305 COND_SYSCALL(fanotify_init);
 306 COND_SYSCALL(fanotify_mark);
 307
 308 /* open by handle */
 309 COND_SYSCALL(name_to_handle_at);
 310 COND_SYSCALL(open_by_handle_at);
 311 COND_SYSCALL_COMPAT(open_by_handle_at);
 312
 313 COND_SYSCALL(sendmmsg);
 314 COND_SYSCALL_COMPAT(sendmmsg);
 315 COND_SYSCALL(process_vm_readv);
 316 COND_SYSCALL_COMPAT(process_vm_readv);
 317 COND_SYSCALL(process_vm_writev);
 318 COND_SYSCALL_COMPAT(process_vm_writev);
 319
 320 /* compare kernel pointers */
 321 COND_SYSCALL(kcmp);
 322
 323 COND_SYSCALL(finit_module);
 324
 325 /* operate on Secure Computing state */
 326 COND_SYSCALL(seccomp);
 327
 328 COND_SYSCALL(memfd_create);
 329
 330 /* access BPF programs and maps */
 331 COND_SYSCALL(bpf);
 332
 333 /* execveat */
 334 COND_SYSCALL(execveat);
 335
 336 COND_SYSCALL(userfaultfd);
 337
 338 /* membarrier */
 339 COND_SYSCALL(membarrier);
 340
 341 COND_SYSCALL(mlock2);
 342
 343 COND_SYSCALL(copy_file_range);
 344
 345 /* memory protection keys */
 346 COND_SYSCALL(pkey_mprotect);
 347 COND_SYSCALL(pkey_alloc);
 348 COND_SYSCALL(pkey_free);
 349
 350
 351 /*
 352  * Architecture specific weak syscall entries.
 353  */
 354
 355 /* pciconfig: alpha, arm, arm64, ia64, sparc */
 356 COND_SYSCALL(pciconfig_read);
 357 COND_SYSCALL(pciconfig_write);
 358 COND_SYSCALL(pciconfig_iobase);
 359
 360 /* sys_socketcall: arm, mips, x86, ... */
 361 COND_SYSCALL(socketcall);
 362 COND_SYSCALL_COMPAT(socketcall);
 363
 364 /* compat syscalls for arm64, x86, ... */
 365 COND_SYSCALL_COMPAT(sysctl);
 366 COND_SYSCALL_COMPAT(fanotify_mark);
 367
 368 /* x86 */
 369 COND_SYSCALL(vm86old);
 370 COND_SYSCALL(modify_ldt);
 371 COND_SYSCALL_COMPAT(quotactl32);
 372 COND_SYSCALL(vm86);
 373 COND_SYSCALL(kexec_file_load);
 374
 375 /* s390 */
 376 COND_SYSCALL(s390_pci_mmio_read);
 377 COND_SYSCALL(s390_pci_mmio_write);
 378 COND_SYSCALL(s390_ipc);
 379 COND_SYSCALL_COMPAT(s390_ipc);
 380
 381 /* powerpc */
 382 COND_SYSCALL(rtas);
 383 COND_SYSCALL(spu_run);
 384 COND_SYSCALL(spu_create);
 385 COND_SYSCALL(subpage_prot);
 386
 387
 388 /*
 389  * Deprecated system calls which are still defined in
 390  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
 391  */
 392
 393 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
 394 COND_SYSCALL(epoll_create);
 395 COND_SYSCALL(inotify_init);
 396 COND_SYSCALL(eventfd);
 397 COND_SYSCALL(signalfd);
 398 COND_SYSCALL_COMPAT(signalfd);
 399
 400 /* __ARCH_WANT_SYSCALL_OFF_T */
 401 COND_SYSCALL(fadvise64);
 402
 403 /* __ARCH_WANT_SYSCALL_DEPRECATED */
 404 COND_SYSCALL(epoll_wait);
 405 COND_SYSCALL(recv);
 406 COND_SYSCALL_COMPAT(recv);
 407 COND_SYSCALL(send);
 408 COND_SYSCALL(bdflush);
 409 COND_SYSCALL(uselib);
 410
 411
 412 /*
 413  * The syscalls below are not found in include/uapi/asm-generic/unistd.h
 414  */
 415
 416 /* obsolete: SGETMASK_SYSCALL */
 417 COND_SYSCALL(sgetmask);
 418 COND_SYSCALL(ssetmask);
 419
 420 /* obsolete: SYSFS_SYSCALL */
 421 COND_SYSCALL(sysfs);
 422
 423 /* obsolete: __ARCH_WANT_SYS_IPC */
 424 COND_SYSCALL(ipc);
 425 COND_SYSCALL_COMPAT(ipc);
 426
 427 /* obsolete: UID16 */
 428 COND_SYSCALL(chown16);
 429 COND_SYSCALL(fchown16);
 430 COND_SYSCALL(getegid16);
 431 COND_SYSCALL(geteuid16);
 432 COND_SYSCALL(getgid16);
 433 COND_SYSCALL(getgroups16);
 434 COND_SYSCALL(getresgid16);
 435 COND_SYSCALL(getresuid16);
 436 COND_SYSCALL(getuid16);
 437 COND_SYSCALL(lchown16);
 438 COND_SYSCALL(setfsgid16);
 439 COND_SYSCALL(setfsuid16);
 440 COND_SYSCALL(setgid16);
 441 COND_SYSCALL(setgroups16);
 442 COND_SYSCALL(setregid16);
 443 COND_SYSCALL(setresgid16);
 444 COND_SYSCALL(setresuid16);
 445 COND_SYSCALL(setreuid16);
 446 COND_SYSCALL(setuid16);
 447
 448 /* restartable sequence */
 449 COND_SYSCALL(rseq);