/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #pragma once /*** This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ /* Missing glibc definitions to access certain kernel APIs */ #include <sys/resource.h> #include <sys/syscall.h> #include <fcntl.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <linux/oom.h> #include <linux/input.h> #include <linux/if_link.h> #ifdef HAVE_AUDIT #include <libaudit.h> #endif #include "macro.h" #ifdef ARCH_MIPS #include <asm/sgidefs.h> #endif #ifndef RLIMIT_RTTIME #define RLIMIT_RTTIME 15 #endif /* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */ #define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS) #ifndef F_LINUX_SPECIFIC_BASE #define F_LINUX_SPECIFIC_BASE 1024 #endif #ifndef F_SETPIPE_SZ #define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7) #endif #ifndef F_GETPIPE_SZ #define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8) #endif #ifndef IP_FREEBIND #define IP_FREEBIND 15 #endif #ifndef OOM_SCORE_ADJ_MIN #define OOM_SCORE_ADJ_MIN (-1000) #endif #ifndef OOM_SCORE_ADJ_MAX #define OOM_SCORE_ADJ_MAX 1000 #endif #ifndef AUDIT_SERVICE_START #define AUDIT_SERVICE_START 1130 /* Service (daemon) start */ #endif #ifndef AUDIT_SERVICE_STOP #define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */ #endif #ifndef TIOCVHANGUP #define TIOCVHANGUP 0x5437 #endif #ifndef IP_TRANSPARENT #define IP_TRANSPARENT 19 #endif #ifndef IFLA_CARRIER #define IFLA_CARRIER 33 #ifndef IFLA_NUM_RX_QUEUES #define IFLA_NUM_RX_QUEUES 32 #ifndef IFLA_NUM_TX_QUEUES #define IFLA_NUM_TX_QUEUES 31 #ifndef IFLA_PROMISCUITY #define IFLA_PROMISCUITY 30 #endif #endif #endif #endif #if !HAVE_DECL_PIVOT_ROOT static inline int pivot_root(const char *new_root, const char *put_old) { return syscall(SYS_pivot_root, new_root, put_old); } #endif #ifdef __x86_64__ # ifndef __NR_fanotify_init # define __NR_fanotify_init 300 # endif # ifndef __NR_fanotify_mark # define __NR_fanotify_mark 301 # endif #elif defined _MIPS_SIM # if _MIPS_SIM == _MIPS_SIM_ABI32 # ifndef __NR_fanotify_init # define __NR_fanotify_init 4336 # endif # ifndef __NR_fanotify_mark # define __NR_fanotify_mark 4337 # endif # elif _MIPS_SIM == _MIPS_SIM_NABI32 # ifndef __NR_fanotify_init # define __NR_fanotify_init 6300 # endif # ifndef __NR_fanotify_mark # define __NR_fanotify_mark 6301 # endif # elif _MIPS_SIM == _MIPS_SIM_ABI64 # ifndef __NR_fanotify_init # define __NR_fanotify_init 5295 # endif # ifndef __NR_fanotify_mark # define __NR_fanotify_mark 5296 # endif # endif #else # ifndef __NR_fanotify_init # define __NR_fanotify_init 338 # endif # ifndef __NR_fanotify_mark # define __NR_fanotify_mark 339 # endif #endif #ifndef HAVE_FANOTIFY_INIT static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) { return syscall(__NR_fanotify_init, flags, event_f_flags); } #endif #ifndef HAVE_FANOTIFY_MARK static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask, int dfd, const char *pathname) { #if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \ || defined __arm__ && !defined __aarch64__ union { uint64_t _64; uint32_t _32[2]; } _mask; _mask._64 = mask; return syscall(__NR_fanotify_mark, fanotify_fd, flags, _mask._32[0], _mask._32[1], dfd, pathname); #else return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname); #endif } #endif #ifndef BTRFS_IOCTL_MAGIC #define BTRFS_IOCTL_MAGIC 0x94 #endif #ifndef BTRFS_PATH_NAME_MAX #define BTRFS_PATH_NAME_MAX 4087 #endif #ifndef BTRFS_DEVICE_PATH_NAME_MAX #define BTRFS_DEVICE_PATH_NAME_MAX 1024 #endif #ifndef BTRFS_FSID_SIZE #define BTRFS_FSID_SIZE 16 #endif #ifndef BTRFS_UUID_SIZE #define BTRFS_UUID_SIZE 16 #endif #ifndef HAVE_LINUX_BTRFS_H struct btrfs_ioctl_vol_args { int64_t fd; char name[BTRFS_PATH_NAME_MAX + 1]; }; struct btrfs_ioctl_dev_info_args { uint64_t devid; /* in/out */ uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */ uint64_t bytes_used; /* out */ uint64_t total_bytes; /* out */ uint64_t unused[379]; /* pad to 4k */ char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */ }; struct btrfs_ioctl_fs_info_args { uint64_t max_id; /* out */ uint64_t num_devices; /* out */ uint8_t fsid[BTRFS_FSID_SIZE]; /* out */ uint64_t reserved[124]; /* pad to 1k */ }; #endif #ifndef BTRFS_IOC_DEFRAG #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args) #endif #ifndef BTRFS_IOC_DEV_INFO #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \ struct btrfs_ioctl_dev_info_args) #endif #ifndef BTRFS_IOC_FS_INFO #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \ struct btrfs_ioctl_fs_info_args) #endif #ifndef BTRFS_SUPER_MAGIC #define BTRFS_SUPER_MAGIC 0x9123683E #endif #ifndef MS_MOVE #define MS_MOVE 8192 #endif #ifndef MS_PRIVATE #define MS_PRIVATE (1 << 18) #endif #if !HAVE_DECL_GETTID static inline pid_t gettid(void) { return (pid_t) syscall(SYS_gettid); } #endif #ifndef SCM_SECURITY #define SCM_SECURITY 0x03 #endif #ifndef MS_STRICTATIME #define MS_STRICTATIME (1<<24) #endif #ifndef MS_REC #define MS_REC 16384 #endif #ifndef MS_SHARED #define MS_SHARED (1<<20) #endif #ifndef PR_SET_NO_NEW_PRIVS #define PR_SET_NO_NEW_PRIVS 38 #endif #ifndef PR_SET_CHILD_SUBREAPER #define PR_SET_CHILD_SUBREAPER 36 #endif #ifndef MAX_HANDLE_SZ #define MAX_HANDLE_SZ 128 #endif #ifndef __NR_name_to_handle_at # if defined(__x86_64__) # define __NR_name_to_handle_at 303 # elif defined(__i386__) # define __NR_name_to_handle_at 341 # elif defined(__arm__) # define __NR_name_to_handle_at 370 # elif defined(__powerpc__) # define __NR_name_to_handle_at 345 # else # error "__NR_name_to_handle_at is not defined" # endif #endif #if !HAVE_DECL_NAME_TO_HANDLE_AT struct file_handle { unsigned int handle_bytes; int handle_type; unsigned char f_handle[0]; }; static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) { return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags); } #endif #ifndef HAVE_SECURE_GETENV # ifdef HAVE___SECURE_GETENV # define secure_getenv __secure_getenv # else # error "neither secure_getenv nor __secure_getenv are available" # endif #endif #ifndef CIFS_MAGIC_NUMBER # define CIFS_MAGIC_NUMBER 0xFF534D42 #endif #ifndef TFD_TIMER_CANCEL_ON_SET # define TFD_TIMER_CANCEL_ON_SET (1 << 1) #endif #ifndef SO_REUSEPORT # define SO_REUSEPORT 15 #endif #ifndef EVIOCREVOKE # define EVIOCREVOKE _IOW('E', 0x91, int) #endif #ifndef DRM_IOCTL_SET_MASTER # define DRM_IOCTL_SET_MASTER _IO('d', 0x1e) #endif #ifndef DRM_IOCTL_DROP_MASTER # define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f) #endif #if defined(__i386__) || defined(__x86_64__) /* The precise definition of __O_TMPFILE is arch specific, so let's * just define this on x86 where we know the value. */ #ifndef __O_TMPFILE #define __O_TMPFILE 020000000 #endif /* a horrid kludge trying to make sure that this will fail on old kernels */ #ifndef O_TMPFILE #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) #endif #endif #ifndef __NR_setns # if defined(__x86_64__) # define __NR_setns 308 # elif defined(__i386__) # define __NR_setns 346 # else # error "__NR_setns is not defined" # endif #endif #if !HAVE_DECL_SETNS static inline int setns(int fd, int nstype) { return syscall(__NR_setns, fd, nstype); } #endif