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