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>
32 #include <linux/oom.h>
33 #include <linux/input.h>
34 #include <linux/if_link.h>
35 #include <linux/loop.h>
36 #include <linux/if_link.h>
45 #include <asm/sgidefs.h>
49 #define RLIMIT_RTTIME 15
52 /* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */
53 #define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS)
55 #ifndef F_LINUX_SPECIFIC_BASE
56 #define F_LINUX_SPECIFIC_BASE 1024
60 #define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
64 #define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
68 #define IP_FREEBIND 15
71 #ifndef OOM_SCORE_ADJ_MIN
72 #define OOM_SCORE_ADJ_MIN (-1000)
75 #ifndef OOM_SCORE_ADJ_MAX
76 #define OOM_SCORE_ADJ_MAX 1000
79 #ifndef AUDIT_SERVICE_START
80 #define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
83 #ifndef AUDIT_SERVICE_STOP
84 #define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
88 #define TIOCVHANGUP 0x5437
91 #ifndef IP_TRANSPARENT
92 #define IP_TRANSPARENT 19
96 #define IFLA_CARRIER 33
97 #ifndef IFLA_NUM_RX_QUEUES
98 #define IFLA_NUM_RX_QUEUES 32
99 #ifndef IFLA_NUM_TX_QUEUES
100 #define IFLA_NUM_TX_QUEUES 31
101 #ifndef IFLA_PROMISCUITY
102 #define IFLA_PROMISCUITY 30
108 #if !HAVE_DECL_PIVOT_ROOT
109 static inline int pivot_root(const char *new_root, const char *put_old) {
110 return syscall(SYS_pivot_root, new_root, put_old);
115 # ifndef __NR_fanotify_init
116 # define __NR_fanotify_init 300
118 # ifndef __NR_fanotify_mark
119 # define __NR_fanotify_mark 301
121 #elif defined _MIPS_SIM
122 # if _MIPS_SIM == _MIPS_SIM_ABI32
123 # ifndef __NR_fanotify_init
124 # define __NR_fanotify_init 4336
126 # ifndef __NR_fanotify_mark
127 # define __NR_fanotify_mark 4337
129 # elif _MIPS_SIM == _MIPS_SIM_NABI32
130 # ifndef __NR_fanotify_init
131 # define __NR_fanotify_init 6300
133 # ifndef __NR_fanotify_mark
134 # define __NR_fanotify_mark 6301
136 # elif _MIPS_SIM == _MIPS_SIM_ABI64
137 # ifndef __NR_fanotify_init
138 # define __NR_fanotify_init 5295
140 # ifndef __NR_fanotify_mark
141 # define __NR_fanotify_mark 5296
145 # ifndef __NR_fanotify_init
146 # define __NR_fanotify_init 338
148 # ifndef __NR_fanotify_mark
149 # define __NR_fanotify_mark 339
153 #ifndef HAVE_FANOTIFY_INIT
154 static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
155 return syscall(__NR_fanotify_init, flags, event_f_flags);
159 #ifndef HAVE_FANOTIFY_MARK
160 static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
161 int dfd, const char *pathname) {
162 #if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
163 || defined __arm__ && !defined __aarch64__
170 return syscall(__NR_fanotify_mark, fanotify_fd, flags,
171 _mask._32[0], _mask._32[1], dfd, pathname);
173 return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
178 #ifndef BTRFS_IOCTL_MAGIC
179 #define BTRFS_IOCTL_MAGIC 0x94
182 #ifndef BTRFS_PATH_NAME_MAX
183 #define BTRFS_PATH_NAME_MAX 4087
186 #ifndef BTRFS_DEVICE_PATH_NAME_MAX
187 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
190 #ifndef BTRFS_FSID_SIZE
191 #define BTRFS_FSID_SIZE 16
194 #ifndef BTRFS_UUID_SIZE
195 #define BTRFS_UUID_SIZE 16
198 #ifndef HAVE_LINUX_BTRFS_H
199 struct btrfs_ioctl_vol_args {
201 char name[BTRFS_PATH_NAME_MAX + 1];
204 struct btrfs_ioctl_dev_info_args {
205 uint64_t devid; /* in/out */
206 uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
207 uint64_t bytes_used; /* out */
208 uint64_t total_bytes; /* out */
209 uint64_t unused[379]; /* pad to 4k */
210 char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
213 struct btrfs_ioctl_fs_info_args {
214 uint64_t max_id; /* out */
215 uint64_t num_devices; /* out */
216 uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
217 uint64_t reserved[124]; /* pad to 1k */
221 #ifndef BTRFS_IOC_DEFRAG
222 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args)
225 #ifndef BTRFS_IOC_DEV_INFO
226 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
227 struct btrfs_ioctl_dev_info_args)
230 #ifndef BTRFS_IOC_FS_INFO
231 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
232 struct btrfs_ioctl_fs_info_args)
235 #ifndef BTRFS_SUPER_MAGIC
236 #define BTRFS_SUPER_MAGIC 0x9123683E
244 #define MS_PRIVATE (1 << 18)
247 #if !HAVE_DECL_GETTID
248 static inline pid_t gettid(void) {
249 return (pid_t) syscall(SYS_gettid);
254 #define SCM_SECURITY 0x03
257 #ifndef MS_STRICTATIME
258 #define MS_STRICTATIME (1<<24)
266 #define MS_SHARED (1<<20)
269 #ifndef PR_SET_NO_NEW_PRIVS
270 #define PR_SET_NO_NEW_PRIVS 38
273 #ifndef PR_SET_CHILD_SUBREAPER
274 #define PR_SET_CHILD_SUBREAPER 36
277 #ifndef MAX_HANDLE_SZ
278 #define MAX_HANDLE_SZ 128
281 #ifndef __NR_name_to_handle_at
282 # if defined(__x86_64__)
283 # define __NR_name_to_handle_at 303
284 # elif defined(__i386__)
285 # define __NR_name_to_handle_at 341
286 # elif defined(__arm__)
287 # define __NR_name_to_handle_at 370
288 # elif defined(__powerpc__)
289 # define __NR_name_to_handle_at 345
291 # error "__NR_name_to_handle_at is not defined"
295 #if !HAVE_DECL_NAME_TO_HANDLE_AT
297 unsigned int handle_bytes;
299 unsigned char f_handle[0];
302 static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
303 return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
307 #ifndef HAVE_SECURE_GETENV
308 # ifdef HAVE___SECURE_GETENV
309 # define secure_getenv __secure_getenv
311 # error "neither secure_getenv nor __secure_getenv are available"
315 #ifndef CIFS_MAGIC_NUMBER
316 # define CIFS_MAGIC_NUMBER 0xFF534D42
319 #ifndef TFD_TIMER_CANCEL_ON_SET
320 # define TFD_TIMER_CANCEL_ON_SET (1 << 1)
324 # define SO_REUSEPORT 15
328 # define EVIOCREVOKE _IOW('E', 0x91, int)
331 #ifndef DRM_IOCTL_SET_MASTER
332 # define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
335 #ifndef DRM_IOCTL_DROP_MASTER
336 # define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
339 #if defined(__i386__) || defined(__x86_64__)
341 /* The precise definition of __O_TMPFILE is arch specific, so let's
342 * just define this on x86 where we know the value. */
345 #define __O_TMPFILE 020000000
348 /* a horrid kludge trying to make sure that this will fail on old kernels */
350 #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
356 # if defined(__x86_64__)
357 # define __NR_setns 308
358 # elif defined(__i386__)
359 # define __NR_setns 346
361 # error "__NR_setns is not defined"
366 static inline int setns(int fd, int nstype) {
367 return syscall(__NR_setns, fd, nstype);
371 #if !HAVE_DECL_LO_FLAGS_PARTSCAN
372 #define LO_FLAGS_PARTSCAN 8
375 #ifndef LOOP_CTL_REMOVE
376 #define LOOP_CTL_REMOVE 0x4C81
379 #ifndef LOOP_CTL_GET_FREE
380 #define LOOP_CTL_GET_FREE 0x4C82
383 #ifndef IFLA_BOND_MAX
387 IFLA_BOND_ACTIVE_SLAVE,
391 IFLA_BOND_USE_CARRIER,
392 IFLA_BOND_ARP_INTERVAL,
393 IFLA_BOND_ARP_IP_TARGET,
394 IFLA_BOND_ARP_VALIDATE,
395 IFLA_BOND_ARP_ALL_TARGETS,
397 IFLA_BOND_PRIMARY_RESELECT,
398 IFLA_BOND_FAIL_OVER_MAC,
399 IFLA_BOND_XMIT_HASH_POLICY,
400 IFLA_BOND_RESEND_IGMP,
401 IFLA_BOND_NUM_PEER_NOTIF,
402 IFLA_BOND_ALL_SLAVES_ACTIVE,
404 IFLA_BOND_LP_INTERVAL,
405 IFLA_BOND_PACKETS_PER_SLAVE,
406 IFLA_BOND_AD_LACP_RATE,
412 #define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)