1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 /* Missing glibc definitions to access certain kernel APIs */
26 #include <sys/resource.h>
27 #include <sys/syscall.h>
31 #include <linux/oom.h>
40 #include <asm/sgidefs.h>
44 #define RLIMIT_RTTIME 15
47 #ifndef F_LINUX_SPECIFIC_BASE
48 #define F_LINUX_SPECIFIC_BASE 1024
52 #define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
56 #define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
60 #define IP_FREEBIND 15
63 #ifndef OOM_SCORE_ADJ_MIN
64 #define OOM_SCORE_ADJ_MIN (-1000)
67 #ifndef OOM_SCORE_ADJ_MAX
68 #define OOM_SCORE_ADJ_MAX 1000
71 #ifndef AUDIT_SERVICE_START
72 #define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
75 #ifndef AUDIT_SERVICE_STOP
76 #define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
80 #define TIOCVHANGUP 0x5437
83 #ifndef IP_TRANSPARENT
84 #define IP_TRANSPARENT 19
87 #if !HAVE_DECL_PIVOT_ROOT
88 static inline int pivot_root(const char *new_root, const char *put_old) {
89 return syscall(SYS_pivot_root, new_root, put_old);
94 # ifndef __NR_fanotify_init
95 # define __NR_fanotify_init 300
97 # ifndef __NR_fanotify_mark
98 # define __NR_fanotify_mark 301
100 #elif defined _MIPS_SIM
101 # if _MIPS_SIM == _MIPS_SIM_ABI32
102 # ifndef __NR_fanotify_init
103 # define __NR_fanotify_init 4336
105 # ifndef __NR_fanotify_mark
106 # define __NR_fanotify_mark 4337
108 # elif _MIPS_SIM == _MIPS_SIM_NABI32
109 # ifndef __NR_fanotify_init
110 # define __NR_fanotify_init 6300
112 # ifndef __NR_fanotify_mark
113 # define __NR_fanotify_mark 6301
115 # elif _MIPS_SIM == _MIPS_SIM_ABI64
116 # ifndef __NR_fanotify_init
117 # define __NR_fanotify_init 5295
119 # ifndef __NR_fanotify_mark
120 # define __NR_fanotify_mark 5296
124 # ifndef __NR_fanotify_init
125 # define __NR_fanotify_init 338
127 # ifndef __NR_fanotify_mark
128 # define __NR_fanotify_mark 339
132 #ifndef HAVE_FANOTIFY_INIT
133 static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
134 return syscall(__NR_fanotify_init, flags, event_f_flags);
138 #ifndef HAVE_FANOTIFY_MARK
139 static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
140 int dfd, const char *pathname) {
141 #if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
142 || defined __arm__ && !defined __aarch64__
149 return syscall(__NR_fanotify_mark, fanotify_fd, flags,
150 _mask._32[0], _mask._32[1], dfd, pathname);
152 return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
157 #ifndef BTRFS_IOCTL_MAGIC
158 #define BTRFS_IOCTL_MAGIC 0x94
161 #ifndef BTRFS_PATH_NAME_MAX
162 #define BTRFS_PATH_NAME_MAX 4087
165 #ifndef BTRFS_DEVICE_PATH_NAME_MAX
166 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
169 #ifndef BTRFS_FSID_SIZE
170 #define BTRFS_FSID_SIZE 16
173 #ifndef BTRFS_UUID_SIZE
174 #define BTRFS_UUID_SIZE 16
177 #ifndef HAVE_LINUX_BTRFS_H
178 struct btrfs_ioctl_vol_args {
180 char name[BTRFS_PATH_NAME_MAX + 1];
183 struct btrfs_ioctl_dev_info_args {
184 uint64_t devid; /* in/out */
185 uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
186 uint64_t bytes_used; /* out */
187 uint64_t total_bytes; /* out */
188 uint64_t unused[379]; /* pad to 4k */
189 char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
192 struct btrfs_ioctl_fs_info_args {
193 uint64_t max_id; /* out */
194 uint64_t num_devices; /* out */
195 uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
196 uint64_t reserved[124]; /* pad to 1k */
200 #ifndef BTRFS_IOC_DEFRAG
201 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args)
204 #ifndef BTRFS_IOC_DEV_INFO
205 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
206 struct btrfs_ioctl_dev_info_args)
209 #ifndef BTRFS_IOC_FS_INFO
210 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
211 struct btrfs_ioctl_fs_info_args)
214 #ifndef BTRFS_SUPER_MAGIC
215 #define BTRFS_SUPER_MAGIC 0x9123683E
223 #define MS_PRIVATE (1 << 18)
226 #if !HAVE_DECL_GETTID
227 static inline pid_t gettid(void) {
228 return (pid_t) syscall(SYS_gettid);
233 #define SCM_SECURITY 0x03
236 #ifndef MS_STRICTATIME
237 #define MS_STRICTATIME (1<<24)
245 #define MS_SHARED (1<<20)
248 #ifndef PR_SET_NO_NEW_PRIVS
249 #define PR_SET_NO_NEW_PRIVS 38
252 #ifndef PR_SET_CHILD_SUBREAPER
253 #define PR_SET_CHILD_SUBREAPER 36
256 #ifndef MAX_HANDLE_SZ
257 #define MAX_HANDLE_SZ 128
260 #if defined __x86_64__
261 # ifndef __NR_name_to_handle_at
262 # define __NR_name_to_handle_at 303
264 #elif defined __i386__
265 # ifndef __NR_name_to_handle_at
266 # define __NR_name_to_handle_at 341
268 #elif defined __arm__
269 # ifndef __NR_name_to_handle_at
270 # define __NR_name_to_handle_at 370
272 #elif defined __powerpc__
273 # ifndef __NR_name_to_handle_at
274 # define __NR_name_to_handle_at 345
277 # ifndef __NR_name_to_handle_at
278 # error __NR_name_to_handle_at is not defined
282 #if !HAVE_DECL_NAME_TO_HANDLE_AT
284 unsigned int handle_bytes;
286 unsigned char f_handle[0];
289 static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
290 return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
294 #ifndef HAVE_SECURE_GETENV
295 # ifdef HAVE___SECURE_GETENV
296 # define secure_getenv __secure_getenv
298 # error neither secure_getenv nor __secure_getenv are available
302 #ifndef CIFS_MAGIC_NUMBER
303 #define CIFS_MAGIC_NUMBER 0xFF534D42
306 #ifndef TFD_TIMER_CANCEL_ON_SET
307 #define TFD_TIMER_CANCEL_ON_SET (1 << 1)
311 #define SO_REUSEPORT 15