431 lines
11 KiB
C
431 lines
11 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/* Missing glibc definitions to access certain kernel APIs */
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#include <sys/types.h>
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#if !HAVE_PIVOT_ROOT
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static inline int missing_pivot_root(const char *new_root, const char *put_old) {
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return syscall(__NR_pivot_root, new_root, put_old);
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}
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# define pivot_root missing_pivot_root
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#endif
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/* ======================================================================= */
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#if !HAVE_MEMFD_CREATE
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# ifndef __NR_memfd_create
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# if defined __x86_64__
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# define __NR_memfd_create 319
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# elif defined __arm__
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# define __NR_memfd_create 385
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# elif defined __aarch64__
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# define __NR_memfd_create 279
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# elif defined __s390__
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# define __NR_memfd_create 350
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# elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# define __NR_memfd_create 4354
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# endif
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# if _MIPS_SIM == _MIPS_SIM_NABI32
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# define __NR_memfd_create 6318
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# endif
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# if _MIPS_SIM == _MIPS_SIM_ABI64
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# define __NR_memfd_create 5314
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# endif
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# elif defined __i386__
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# define __NR_memfd_create 356
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# elif defined __arc__
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# define __NR_memfd_create 279
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# else
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# warning "__NR_memfd_create unknown for your architecture"
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# endif
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# endif
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static inline int missing_memfd_create(const char *name, unsigned int flags) {
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# ifdef __NR_memfd_create
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return syscall(__NR_memfd_create, name, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define memfd_create missing_memfd_create
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#endif
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/* ======================================================================= */
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#if !HAVE_GETRANDOM
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# ifndef __NR_getrandom
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# if defined __x86_64__
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# define __NR_getrandom 318
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# elif defined(__i386__)
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# define __NR_getrandom 355
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# elif defined(__arm__)
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# define __NR_getrandom 384
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# elif defined(__aarch64__)
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# define __NR_getrandom 278
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# elif defined(__ia64__)
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# define __NR_getrandom 1339
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# elif defined(__m68k__)
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# define __NR_getrandom 352
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# elif defined(__s390x__)
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# define __NR_getrandom 349
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# elif defined(__powerpc__)
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# define __NR_getrandom 359
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# elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# define __NR_getrandom 4353
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# endif
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# if _MIPS_SIM == _MIPS_SIM_NABI32
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# define __NR_getrandom 6317
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# endif
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# if _MIPS_SIM == _MIPS_SIM_ABI64
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# define __NR_getrandom 5313
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# endif
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# elif defined(__arc__)
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# define __NR_getrandom 278
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# else
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# warning "__NR_getrandom unknown for your architecture"
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# endif
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# endif
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static inline int missing_getrandom(void *buffer, size_t count, unsigned flags) {
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# ifdef __NR_getrandom
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return syscall(__NR_getrandom, buffer, count, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define getrandom missing_getrandom
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#endif
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/* ======================================================================= */
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#if !HAVE_GETTID
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static inline pid_t missing_gettid(void) {
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return (pid_t) syscall(__NR_gettid);
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}
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# define gettid missing_gettid
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#endif
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/* ======================================================================= */
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#if !HAVE_NAME_TO_HANDLE_AT
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# ifndef __NR_name_to_handle_at
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# if defined(__x86_64__)
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# define __NR_name_to_handle_at 303
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# elif defined(__i386__)
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# define __NR_name_to_handle_at 341
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# elif defined(__arm__)
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# define __NR_name_to_handle_at 370
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# elif defined(__powerpc__)
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# define __NR_name_to_handle_at 345
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# elif defined(__arc__)
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# define __NR_name_to_handle_at 264
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# else
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# error "__NR_name_to_handle_at is not defined"
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# endif
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# endif
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struct file_handle {
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unsigned int handle_bytes;
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int handle_type;
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unsigned char f_handle[0];
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};
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static inline int missing_name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
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# ifdef __NR_name_to_handle_at
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return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define name_to_handle_at missing_name_to_handle_at
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#endif
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/* ======================================================================= */
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#if !HAVE_SETNS
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# ifndef __NR_setns
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# if defined(__x86_64__)
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# define __NR_setns 308
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# elif defined(__i386__)
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# define __NR_setns 346
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# elif defined(__arc__)
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# define __NR_setns 268
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# else
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# error "__NR_setns is not defined"
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# endif
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# endif
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static inline int missing_setns(int fd, int nstype) {
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# ifdef __NR_setns
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return syscall(__NR_setns, fd, nstype);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define setns missing_setns
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#endif
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/* ======================================================================= */
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static inline pid_t raw_getpid(void) {
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#if defined(__alpha__)
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return (pid_t) syscall(__NR_getxpid);
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#else
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return (pid_t) syscall(__NR_getpid);
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#endif
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}
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/* ======================================================================= */
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#if !HAVE_RENAMEAT2
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# ifndef __NR_renameat2
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# if defined __x86_64__
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# define __NR_renameat2 316
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# elif defined __arm__
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# define __NR_renameat2 382
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# elif defined __aarch64__
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# define __NR_renameat2 276
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# elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# define __NR_renameat2 4351
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# endif
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# if _MIPS_SIM == _MIPS_SIM_NABI32
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# define __NR_renameat2 6315
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# endif
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# if _MIPS_SIM == _MIPS_SIM_ABI64
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# define __NR_renameat2 5311
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# endif
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# elif defined __i386__
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# define __NR_renameat2 353
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# elif defined __powerpc64__
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# define __NR_renameat2 357
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# elif defined __s390__ || defined __s390x__
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# define __NR_renameat2 347
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# elif defined __arc__
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# define __NR_renameat2 276
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# else
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# warning "__NR_renameat2 unknown for your architecture"
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# endif
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# endif
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static inline int missing_renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
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# ifdef __NR_renameat2
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return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define renameat2 missing_renameat2
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#endif
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/* ======================================================================= */
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#if !HAVE_KCMP
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static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
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# ifdef __NR_kcmp
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return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define kcmp missing_kcmp
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#endif
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/* ======================================================================= */
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#if !HAVE_KEYCTL
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static inline long missing_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4,unsigned long arg5) {
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# ifdef __NR_keyctl
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return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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# define keyctl missing_keyctl
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}
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static inline key_serial_t missing_add_key(const char *type, const char *description, const void *payload, size_t plen, key_serial_t ringid) {
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# ifdef __NR_add_key
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return syscall(__NR_add_key, type, description, payload, plen, ringid);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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# define add_key missing_add_key
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}
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static inline key_serial_t missing_request_key(const char *type, const char *description, const char * callout_info, key_serial_t destringid) {
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# ifdef __NR_request_key
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return syscall(__NR_request_key, type, description, callout_info, destringid);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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# define request_key missing_request_key
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}
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#endif
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/* ======================================================================= */
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#if !HAVE_COPY_FILE_RANGE
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# ifndef __NR_copy_file_range
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# if defined(__x86_64__)
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# define __NR_copy_file_range 326
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# elif defined(__i386__)
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# define __NR_copy_file_range 377
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# elif defined __s390__
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# define __NR_copy_file_range 375
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# elif defined __arm__
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# define __NR_copy_file_range 391
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# elif defined __aarch64__
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# define __NR_copy_file_range 285
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# elif defined __powerpc__
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# define __NR_copy_file_range 379
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# elif defined __arc__
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# define __NR_copy_file_range 285
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# else
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# warning "__NR_copy_file_range not defined for your architecture"
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# endif
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# endif
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static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in,
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int fd_out, loff_t *off_out,
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size_t len,
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unsigned int flags) {
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# ifdef __NR_copy_file_range
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return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define copy_file_range missing_copy_file_range
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#endif
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/* ======================================================================= */
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#if !HAVE_BPF
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# ifndef __NR_bpf
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# if defined __i386__
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# define __NR_bpf 357
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# elif defined __x86_64__
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# define __NR_bpf 321
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# elif defined __aarch64__
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# define __NR_bpf 280
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# elif defined __arm__
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# define __NR_bpf 386
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# elif defined __sparc__
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# define __NR_bpf 349
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# elif defined __s390__
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# define __NR_bpf 351
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# elif defined __tilegx__
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# define __NR_bpf 280
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# else
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# warning "__NR_bpf not defined for your architecture"
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# endif
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# endif
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union bpf_attr;
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static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) {
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#ifdef __NR_bpf
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return (int) syscall(__NR_bpf, cmd, attr, size);
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#else
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errno = ENOSYS;
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return -1;
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#endif
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}
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# define bpf missing_bpf
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#endif
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/* ======================================================================= */
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#ifndef __IGNORE_pkey_mprotect
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# ifndef __NR_pkey_mprotect
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# if defined __i386__
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# define __NR_pkey_mprotect 380
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# elif defined __x86_64__
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# define __NR_pkey_mprotect 329
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# elif defined __arm__
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# define __NR_pkey_mprotect 394
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# elif defined __aarch64__
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# define __NR_pkey_mprotect 394
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# elif defined __powerpc__
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# define __NR_pkey_mprotect 386
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# elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# define __NR_pkey_mprotect 4363
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# endif
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# if _MIPS_SIM == _MIPS_SIM_NABI32
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# define __NR_pkey_mprotect 6327
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# endif
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# if _MIPS_SIM == _MIPS_SIM_ABI64
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# define __NR_pkey_mprotect 5323
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# endif
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# else
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# warning "__NR_pkey_mprotect not defined for your architecture"
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# endif
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# endif
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#endif
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/* ======================================================================= */
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#if !HAVE_STATX
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# ifndef __NR_statx
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# if defined __aarch64__ || defined __arm__
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# define __NR_statx 397
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# elif defined __alpha__
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# define __NR_statx 522
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# elif defined __i386__ || defined __powerpc64__
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# define __NR_statx 383
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# elif defined __sparc__
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# define __NR_statx 360
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# elif defined __x86_64__
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# define __NR_statx 332
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# else
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# warning "__NR_statx not defined for your architecture"
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# endif
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# endif
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struct statx;
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#endif
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/* This typedef is supposed to be always defined. */
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typedef struct statx struct_statx;
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#if !HAVE_STATX
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static inline ssize_t missing_statx(int dfd, const char *filename, unsigned flags, unsigned int mask, struct statx *buffer) {
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# ifdef __NR_statx
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return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
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# else
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errno = ENOSYS;
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return -1;
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# endif
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}
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# define statx missing_statx
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#endif
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