514 lines
12 KiB
C
514 lines
12 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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/* Missing glibc definitions to access certain kernel APIs */
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#include <sys/resource.h>
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#include <sys/syscall.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <linux/oom.h>
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#include <linux/input.h>
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#include <linux/if_link.h>
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#include <linux/loop.h>
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#include <linux/if_link.h>
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#ifdef HAVE_AUDIT
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#include <libaudit.h>
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#endif
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#include "macro.h"
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#ifdef ARCH_MIPS
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#include <asm/sgidefs.h>
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#endif
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#ifndef RLIMIT_RTTIME
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#define RLIMIT_RTTIME 15
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#endif
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/* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */
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#define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS)
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#ifndef F_LINUX_SPECIFIC_BASE
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#define F_LINUX_SPECIFIC_BASE 1024
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#endif
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#ifndef F_SETPIPE_SZ
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#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
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#endif
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#ifndef F_GETPIPE_SZ
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#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
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#endif
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#ifndef IP_FREEBIND
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#define IP_FREEBIND 15
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#endif
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#ifndef OOM_SCORE_ADJ_MIN
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#define OOM_SCORE_ADJ_MIN (-1000)
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#endif
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#ifndef OOM_SCORE_ADJ_MAX
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#define OOM_SCORE_ADJ_MAX 1000
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#endif
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#ifndef AUDIT_SERVICE_START
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#define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
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#endif
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#ifndef AUDIT_SERVICE_STOP
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#define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
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#endif
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#ifndef TIOCVHANGUP
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#define TIOCVHANGUP 0x5437
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#endif
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#ifndef IP_TRANSPARENT
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#define IP_TRANSPARENT 19
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#endif
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#ifndef SOL_NETLINK
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#define SOL_NETLINK 270
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#endif
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#if !HAVE_DECL_PIVOT_ROOT
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static inline int pivot_root(const char *new_root, const char *put_old) {
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return syscall(SYS_pivot_root, new_root, put_old);
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}
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#endif
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#ifdef __x86_64__
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# ifndef __NR_fanotify_init
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# define __NR_fanotify_init 300
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# endif
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# ifndef __NR_fanotify_mark
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# define __NR_fanotify_mark 301
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# endif
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#elif defined _MIPS_SIM
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# if _MIPS_SIM == _MIPS_SIM_ABI32
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# ifndef __NR_fanotify_init
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# define __NR_fanotify_init 4336
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# endif
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# ifndef __NR_fanotify_mark
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# define __NR_fanotify_mark 4337
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# endif
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# elif _MIPS_SIM == _MIPS_SIM_NABI32
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# ifndef __NR_fanotify_init
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# define __NR_fanotify_init 6300
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# endif
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# ifndef __NR_fanotify_mark
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# define __NR_fanotify_mark 6301
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# endif
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# elif _MIPS_SIM == _MIPS_SIM_ABI64
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# ifndef __NR_fanotify_init
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# define __NR_fanotify_init 5295
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# endif
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# ifndef __NR_fanotify_mark
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# define __NR_fanotify_mark 5296
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# endif
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# endif
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#else
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# ifndef __NR_fanotify_init
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# define __NR_fanotify_init 338
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# endif
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# ifndef __NR_fanotify_mark
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# define __NR_fanotify_mark 339
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# endif
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#endif
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#ifndef HAVE_FANOTIFY_INIT
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static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
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return syscall(__NR_fanotify_init, flags, event_f_flags);
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}
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#endif
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#ifndef HAVE_FANOTIFY_MARK
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static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
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int dfd, const char *pathname) {
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#if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
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|| defined __arm__ && !defined __aarch64__
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union {
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uint64_t _64;
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uint32_t _32[2];
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} _mask;
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_mask._64 = mask;
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return syscall(__NR_fanotify_mark, fanotify_fd, flags,
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_mask._32[0], _mask._32[1], dfd, pathname);
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#else
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return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
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#endif
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}
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#endif
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#ifndef BTRFS_IOCTL_MAGIC
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#define BTRFS_IOCTL_MAGIC 0x94
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#endif
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#ifndef BTRFS_PATH_NAME_MAX
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#define BTRFS_PATH_NAME_MAX 4087
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#endif
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#ifndef BTRFS_DEVICE_PATH_NAME_MAX
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#define BTRFS_DEVICE_PATH_NAME_MAX 1024
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#endif
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#ifndef BTRFS_FSID_SIZE
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#define BTRFS_FSID_SIZE 16
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#endif
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#ifndef BTRFS_UUID_SIZE
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#define BTRFS_UUID_SIZE 16
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#endif
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#ifndef HAVE_LINUX_BTRFS_H
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struct btrfs_ioctl_vol_args {
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int64_t fd;
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char name[BTRFS_PATH_NAME_MAX + 1];
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};
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struct btrfs_ioctl_dev_info_args {
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uint64_t devid; /* in/out */
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uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
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uint64_t bytes_used; /* out */
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uint64_t total_bytes; /* out */
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uint64_t unused[379]; /* pad to 4k */
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char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
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};
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struct btrfs_ioctl_fs_info_args {
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uint64_t max_id; /* out */
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uint64_t num_devices; /* out */
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uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
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uint64_t reserved[124]; /* pad to 1k */
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};
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#endif
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#ifndef BTRFS_IOC_DEFRAG
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#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args)
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#endif
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#ifndef BTRFS_IOC_DEV_INFO
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#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
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struct btrfs_ioctl_dev_info_args)
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#endif
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#ifndef BTRFS_IOC_FS_INFO
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#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
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struct btrfs_ioctl_fs_info_args)
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#endif
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#ifndef BTRFS_SUPER_MAGIC
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#define BTRFS_SUPER_MAGIC 0x9123683E
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#endif
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#ifndef MS_MOVE
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#define MS_MOVE 8192
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#endif
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#ifndef MS_PRIVATE
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#define MS_PRIVATE (1 << 18)
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#endif
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#if !HAVE_DECL_GETTID
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static inline pid_t gettid(void) {
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return (pid_t) syscall(SYS_gettid);
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}
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#endif
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#ifndef SCM_SECURITY
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#define SCM_SECURITY 0x03
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#endif
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#ifndef MS_STRICTATIME
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#define MS_STRICTATIME (1<<24)
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#endif
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#ifndef MS_REC
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#define MS_REC 16384
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#endif
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#ifndef MS_SHARED
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#define MS_SHARED (1<<20)
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#endif
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#ifndef PR_SET_NO_NEW_PRIVS
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#define PR_SET_NO_NEW_PRIVS 38
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#endif
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#ifndef PR_SET_CHILD_SUBREAPER
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#define PR_SET_CHILD_SUBREAPER 36
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#endif
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#ifndef MAX_HANDLE_SZ
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#define MAX_HANDLE_SZ 128
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#endif
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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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# 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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#if !HAVE_DECL_NAME_TO_HANDLE_AT
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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 name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
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return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
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}
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#endif
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#ifndef HAVE_SECURE_GETENV
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# ifdef HAVE___SECURE_GETENV
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# define secure_getenv __secure_getenv
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# else
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# error "neither secure_getenv nor __secure_getenv are available"
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# endif
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#endif
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#ifndef CIFS_MAGIC_NUMBER
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# define CIFS_MAGIC_NUMBER 0xFF534D42
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#endif
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#ifndef TFD_TIMER_CANCEL_ON_SET
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# define TFD_TIMER_CANCEL_ON_SET (1 << 1)
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#endif
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#ifndef SO_REUSEPORT
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# define SO_REUSEPORT 15
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#endif
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#ifndef EVIOCREVOKE
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# define EVIOCREVOKE _IOW('E', 0x91, int)
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#endif
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#ifndef DRM_IOCTL_SET_MASTER
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# define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
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#endif
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#ifndef DRM_IOCTL_DROP_MASTER
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# define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
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#endif
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#if defined(__i386__) || defined(__x86_64__)
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/* The precise definition of __O_TMPFILE is arch specific, so let's
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* just define this on x86 where we know the value. */
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#ifndef __O_TMPFILE
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#define __O_TMPFILE 020000000
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#endif
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/* a horrid kludge trying to make sure that this will fail on old kernels */
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#ifndef O_TMPFILE
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#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
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#endif
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#endif
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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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# 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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#if !HAVE_DECL_SETNS
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static inline int setns(int fd, int nstype) {
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return syscall(__NR_setns, fd, nstype);
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}
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#endif
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#if !HAVE_DECL_LO_FLAGS_PARTSCAN
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#define LO_FLAGS_PARTSCAN 8
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#endif
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#ifndef LOOP_CTL_REMOVE
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#define LOOP_CTL_REMOVE 0x4C81
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#endif
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#ifndef LOOP_CTL_GET_FREE
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#define LOOP_CTL_GET_FREE 0x4C82
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#endif
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#if !HAVE_DECL_IFLA_MACVLAN_FLAGS
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#define IFLA_MACVLAN_UNSPEC 0
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#define IFLA_MACVLAN_MODE 1
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#define IFLA_MACVLAN_FLAGS 2
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#define __IFLA_MACVLAN_MAX 3
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#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_VTI_REMOTE
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#define IFLA_VTI_UNSPEC 0
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#define IFLA_VTI_LINK 1
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#define IFLA_VTI_IKEY 2
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#define IFLA_VTI_OKEY 3
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#define IFLA_VTI_LOCAL 4
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#define IFLA_VTI_REMOTE 5
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#define __IFLA_VTI_MAX 6
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#define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_PHYS_PORT_ID
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#undef IFLA_PROMISCUITY
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#define IFLA_PROMISCUITY 30
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#define IFLA_NUM_TX_QUEUES 31
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#define IFLA_NUM_RX_QUEUES 32
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#define IFLA_CARRIER 33
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#define IFLA_PHYS_PORT_ID 34
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#define __IFLA_MAX 35
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#define IFLA_MAX (__IFLA_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_BOND_AD_INFO
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#define IFLA_BOND_UNSPEC 0
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#define IFLA_BOND_MODE 1
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#define IFLA_BOND_ACTIVE_SLAVE 2
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#define IFLA_BOND_MIIMON 3
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#define IFLA_BOND_UPDELAY 4
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#define IFLA_BOND_DOWNDELAY 5
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#define IFLA_BOND_USE_CARRIER 6
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#define IFLA_BOND_ARP_INTERVAL 7
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#define IFLA_BOND_ARP_IP_TARGET 8
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#define IFLA_BOND_ARP_VALIDATE 9
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#define IFLA_BOND_ARP_ALL_TARGETS 10
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#define IFLA_BOND_PRIMARY 11
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#define IFLA_BOND_PRIMARY_RESELECT 12
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#define IFLA_BOND_FAIL_OVER_MAC 13
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#define IFLA_BOND_XMIT_HASH_POLICY 14
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#define IFLA_BOND_RESEND_IGMP 15
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#define IFLA_BOND_NUM_PEER_NOTIF 16
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#define IFLA_BOND_ALL_SLAVES_ACTIVE 17
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#define IFLA_BOND_MIN_LINKS 18
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#define IFLA_BOND_LP_INTERVAL 19
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#define IFLA_BOND_PACKETS_PER_SLAVE 20
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#define IFLA_BOND_AD_LACP_RATE 21
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#define IFLA_BOND_AD_SELECT 22
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#define IFLA_BOND_AD_INFO 23
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#define __IFLA_BOND_MAX 24
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#define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_VLAN_PROTOCOL
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#define IFLA_VLAN_UNSPEC 0
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#define IFLA_VLAN_ID 1
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#define IFLA_VLAN_FLAGS 2
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#define IFLA_VLAN_EGRESS_QOS 3
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#define IFLA_VLAN_INGRESS_QOS 4
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#define IFLA_VLAN_PROTOCOL 5
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#define __IFLA_VLAN_MAX 6
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#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_VXLAN_LOCAL6
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#define IFLA_VXLAN_UNSPEC 0
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#define IFLA_VXLAN_ID 1
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#define IFLA_VXLAN_GROUP 2
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#define IFLA_VXLAN_LINK 3
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#define IFLA_VXLAN_LOCAL 4
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#define IFLA_VXLAN_TTL 5
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#define IFLA_VXLAN_TOS 6
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#define IFLA_VXLAN_LEARNING 7
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#define IFLA_VXLAN_AGEING 8
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#define IFLA_VXLAN_LIMIT 9
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#define IFLA_VXLAN_PORT_RANGE 10
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#define IFLA_VXLAN_PROXY 11
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#define IFLA_VXLAN_RSC 12
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#define IFLA_VXLAN_L2MISS 13
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#define IFLA_VXLAN_L3MISS 14
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#define IFLA_VXLAN_PORT 15
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#define IFLA_VXLAN_GROUP6 16
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#define IFLA_VXLAN_LOCAL6 17
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#define __IFLA_VXLAN_MAX 18
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#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_IPTUN_6RD_RELAY_PREFIXLEN
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#define IFLA_IPTUN_UNSPEC 0
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#define IFLA_IPTUN_LINK 1
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#define IFLA_IPTUN_LOCAL 2
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#define IFLA_IPTUN_REMOTE 3
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#define IFLA_IPTUN_TTL 4
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#define IFLA_IPTUN_TOS 5
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#define IFLA_IPTUN_ENCAP_LIMIT 6
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#define IFLA_IPTUN_FLOWINFO 7
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#define IFLA_IPTUN_FLAGS 8
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#define IFLA_IPTUN_PROTO 9
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#define IFLA_IPTUN_PMTUDISC 10
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#define IFLA_IPTUN_6RD_PREFIX 11
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#define IFLA_IPTUN_6RD_RELAY_PREFIX 12
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#define IFLA_IPTUN_6RD_PREFIXLEN 13
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#define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
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#define __IFLA_IPTUN_MAX 15
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#define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
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#define IFLA_BRIDGE_FLAGS 0
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#define IFLA_BRIDGE_MODE 1
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#define IFLA_BRIDGE_VLAN_INFO 2
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#define __IFLA_BRIDGE_MAX 3
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#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
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#endif
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#ifndef IPV6_UNICAST_IF
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#define IPV6_UNICAST_IF 76
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#endif
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#ifndef IFF_LOWER_UP
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#define IFF_LOWER_UP 0x10000
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#endif
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#ifndef IFF_DORMANT
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#define IFF_DORMANT 0x20000
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#endif
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