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 SOL_NETLINK 270
99 #if !HAVE_DECL_PIVOT_ROOT
100 static inline int pivot_root(const char *new_root, const char *put_old) {
101 return syscall(SYS_pivot_root, new_root, put_old);
106 # ifndef __NR_fanotify_init
107 # define __NR_fanotify_init 300
109 # ifndef __NR_fanotify_mark
110 # define __NR_fanotify_mark 301
112 #elif defined _MIPS_SIM
113 # if _MIPS_SIM == _MIPS_SIM_ABI32
114 # ifndef __NR_fanotify_init
115 # define __NR_fanotify_init 4336
117 # ifndef __NR_fanotify_mark
118 # define __NR_fanotify_mark 4337
120 # elif _MIPS_SIM == _MIPS_SIM_NABI32
121 # ifndef __NR_fanotify_init
122 # define __NR_fanotify_init 6300
124 # ifndef __NR_fanotify_mark
125 # define __NR_fanotify_mark 6301
127 # elif _MIPS_SIM == _MIPS_SIM_ABI64
128 # ifndef __NR_fanotify_init
129 # define __NR_fanotify_init 5295
131 # ifndef __NR_fanotify_mark
132 # define __NR_fanotify_mark 5296
136 # ifndef __NR_fanotify_init
137 # define __NR_fanotify_init 338
139 # ifndef __NR_fanotify_mark
140 # define __NR_fanotify_mark 339
144 #ifndef HAVE_FANOTIFY_INIT
145 static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
146 return syscall(__NR_fanotify_init, flags, event_f_flags);
150 #ifndef HAVE_FANOTIFY_MARK
151 static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
152 int dfd, const char *pathname) {
153 #if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
154 || defined __arm__ && !defined __aarch64__
161 return syscall(__NR_fanotify_mark, fanotify_fd, flags,
162 _mask._32[0], _mask._32[1], dfd, pathname);
164 return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
169 #ifndef BTRFS_IOCTL_MAGIC
170 #define BTRFS_IOCTL_MAGIC 0x94
173 #ifndef BTRFS_PATH_NAME_MAX
174 #define BTRFS_PATH_NAME_MAX 4087
177 #ifndef BTRFS_DEVICE_PATH_NAME_MAX
178 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
181 #ifndef BTRFS_FSID_SIZE
182 #define BTRFS_FSID_SIZE 16
185 #ifndef BTRFS_UUID_SIZE
186 #define BTRFS_UUID_SIZE 16
189 #ifndef HAVE_LINUX_BTRFS_H
190 struct btrfs_ioctl_vol_args {
192 char name[BTRFS_PATH_NAME_MAX + 1];
195 struct btrfs_ioctl_dev_info_args {
196 uint64_t devid; /* in/out */
197 uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
198 uint64_t bytes_used; /* out */
199 uint64_t total_bytes; /* out */
200 uint64_t unused[379]; /* pad to 4k */
201 char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
204 struct btrfs_ioctl_fs_info_args {
205 uint64_t max_id; /* out */
206 uint64_t num_devices; /* out */
207 uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
208 uint64_t reserved[124]; /* pad to 1k */
212 #ifndef BTRFS_IOC_DEFRAG
213 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args)
216 #ifndef BTRFS_IOC_DEV_INFO
217 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
218 struct btrfs_ioctl_dev_info_args)
221 #ifndef BTRFS_IOC_FS_INFO
222 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
223 struct btrfs_ioctl_fs_info_args)
226 #ifndef BTRFS_SUPER_MAGIC
227 #define BTRFS_SUPER_MAGIC 0x9123683E
235 #define MS_PRIVATE (1 << 18)
238 #if !HAVE_DECL_GETTID
239 static inline pid_t gettid(void) {
240 return (pid_t) syscall(SYS_gettid);
245 #define SCM_SECURITY 0x03
248 #ifndef MS_STRICTATIME
249 #define MS_STRICTATIME (1<<24)
257 #define MS_SHARED (1<<20)
260 #ifndef PR_SET_NO_NEW_PRIVS
261 #define PR_SET_NO_NEW_PRIVS 38
264 #ifndef PR_SET_CHILD_SUBREAPER
265 #define PR_SET_CHILD_SUBREAPER 36
268 #ifndef MAX_HANDLE_SZ
269 #define MAX_HANDLE_SZ 128
272 #ifndef __NR_name_to_handle_at
273 # if defined(__x86_64__)
274 # define __NR_name_to_handle_at 303
275 # elif defined(__i386__)
276 # define __NR_name_to_handle_at 341
277 # elif defined(__arm__)
278 # define __NR_name_to_handle_at 370
279 # elif defined(__powerpc__)
280 # define __NR_name_to_handle_at 345
282 # error "__NR_name_to_handle_at is not defined"
286 #if !HAVE_DECL_NAME_TO_HANDLE_AT
288 unsigned int handle_bytes;
290 unsigned char f_handle[0];
293 static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
294 return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
298 #ifndef HAVE_SECURE_GETENV
299 # ifdef HAVE___SECURE_GETENV
300 # define secure_getenv __secure_getenv
302 # error "neither secure_getenv nor __secure_getenv are available"
306 #ifndef CIFS_MAGIC_NUMBER
307 # define CIFS_MAGIC_NUMBER 0xFF534D42
310 #ifndef TFD_TIMER_CANCEL_ON_SET
311 # define TFD_TIMER_CANCEL_ON_SET (1 << 1)
315 # define SO_REUSEPORT 15
319 # define EVIOCREVOKE _IOW('E', 0x91, int)
322 #ifndef DRM_IOCTL_SET_MASTER
323 # define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
326 #ifndef DRM_IOCTL_DROP_MASTER
327 # define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
330 #if defined(__i386__) || defined(__x86_64__)
332 /* The precise definition of __O_TMPFILE is arch specific, so let's
333 * just define this on x86 where we know the value. */
336 #define __O_TMPFILE 020000000
339 /* a horrid kludge trying to make sure that this will fail on old kernels */
341 #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
347 # if defined(__x86_64__)
348 # define __NR_setns 308
349 # elif defined(__i386__)
350 # define __NR_setns 346
352 # error "__NR_setns is not defined"
357 static inline int setns(int fd, int nstype) {
358 return syscall(__NR_setns, fd, nstype);
362 #if !HAVE_DECL_LO_FLAGS_PARTSCAN
363 #define LO_FLAGS_PARTSCAN 8
366 #ifndef LOOP_CTL_REMOVE
367 #define LOOP_CTL_REMOVE 0x4C81
370 #ifndef LOOP_CTL_GET_FREE
371 #define LOOP_CTL_GET_FREE 0x4C82
374 #if !HAVE_DECL_IFLA_MACVLAN_FLAGS
375 #define IFLA_MACVLAN_UNSPEC 0
376 #define IFLA_MACVLAN_MODE 1
377 #define IFLA_MACVLAN_FLAGS 2
378 #define __IFLA_MACVLAN_MAX 3
380 #define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
383 #if !HAVE_DECL_IFLA_PHYS_PORT_ID
384 #undef IFLA_PROMISCUITY
385 #define IFLA_PROMISCUITY 30
386 #define IFLA_NUM_TX_QUEUES 31
387 #define IFLA_NUM_RX_QUEUES 32
388 #define IFLA_CARRIER 33
389 #define IFLA_PHYS_PORT_ID 34
390 #define __IFLA_MAX 35
392 #define IFLA_MAX (__IFLA_MAX - 1)
395 #if !HAVE_DECL_IFLA_BOND_AD_INFO
396 #define IFLA_BOND_UNSPEC 0
397 #define IFLA_BOND_MODE 1
398 #define IFLA_BOND_ACTIVE_SLAVE 2
399 #define IFLA_BOND_MIIMON 3
400 #define IFLA_BOND_UPDELAY 4
401 #define IFLA_BOND_DOWNDELAY 5
402 #define IFLA_BOND_USE_CARRIER 6
403 #define IFLA_BOND_ARP_INTERVAL 7
404 #define IFLA_BOND_ARP_IP_TARGET 8
405 #define IFLA_BOND_ARP_VALIDATE 9
406 #define IFLA_BOND_ARP_ALL_TARGETS 10
407 #define IFLA_BOND_PRIMARY 11
408 #define IFLA_BOND_PRIMARY_RESELECT 12
409 #define IFLA_BOND_FAIL_OVER_MAC 13
410 #define IFLA_BOND_XMIT_HASH_POLICY 14
411 #define IFLA_BOND_RESEND_IGMP 15
412 #define IFLA_BOND_NUM_PEER_NOTIF 16
413 #define IFLA_BOND_ALL_SLAVES_ACTIVE 17
414 #define IFLA_BOND_MIN_LINKS 18
415 #define IFLA_BOND_LP_INTERVAL 19
416 #define IFLA_BOND_PACKETS_PER_SLAVE 20
417 #define IFLA_BOND_AD_LACP_RATE 21
418 #define IFLA_BOND_AD_SELECT 22
419 #define IFLA_BOND_AD_INFO 23
420 #define __IFLA_BOND_MAX 24
422 #define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
425 #if !HAVE_DECL_IFLA_VLAN_PROTOCOL
426 #define IFLA_VLAN_UNSPEC 0
427 #define IFLA_VLAN_ID 1
428 #define IFLA_VLAN_FLAGS 2
429 #define IFLA_VLAN_EGRESS_QOS 3
430 #define IFLA_VLAN_INGRESS_QOS 4
431 #define IFLA_VLAN_PROTOCOL 5
432 #define __IFLA_VLAN_MAX 6
434 #define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
437 #if !HAVE_DECL_IFLA_VXLAN_LOCAL6
438 #define IFLA_VXLAN_UNSPEC 0
439 #define IFLA_VXLAN_ID 1
440 #define IFLA_VXLAN_GROUP 2
441 #define IFLA_VXLAN_LINK 3
442 #define IFLA_VXLAN_LOCAL 4
443 #define IFLA_VXLAN_TTL 5
444 #define IFLA_VXLAN_TOS 6
445 #define IFLA_VXLAN_LEARNING 7
446 #define IFLA_VXLAN_AGEING 8
447 #define IFLA_VXLAN_LIMIT 9
448 #define IFLA_VXLAN_PORT_RANGE 10
449 #define IFLA_VXLAN_PROXY 11
450 #define IFLA_VXLAN_RSC 12
451 #define IFLA_VXLAN_L2MISS 13
452 #define IFLA_VXLAN_L3MISS 14
453 #define IFLA_VXLAN_PORT 15
454 #define IFLA_VXLAN_GROUP6 16
455 #define IFLA_VXLAN_LOCAL6 17
456 #define __IFLA_VXLAN_MAX 18
458 #define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
461 #if !HAVE_DECL_IFLA_IPTUN_6RD_RELAY_PREFIXLEN
462 #define IFLA_IPTUN_UNSPEC 0
463 #define IFLA_IPTUN_LINK 1
464 #define IFLA_IPTUN_LOCAL 2
465 #define IFLA_IPTUN_REMOTE 3
466 #define IFLA_IPTUN_TTL 4
467 #define IFLA_IPTUN_TOS 5
468 #define IFLA_IPTUN_ENCAP_LIMIT 6
469 #define IFLA_IPTUN_FLOWINFO 7
470 #define IFLA_IPTUN_FLAGS 8
471 #define IFLA_IPTUN_PROTO 9
472 #define IFLA_IPTUN_PMTUDISC 10
473 #define IFLA_IPTUN_6RD_PREFIX 11
474 #define IFLA_IPTUN_6RD_RELAY_PREFIX 12
475 #define IFLA_IPTUN_6RD_PREFIXLEN 13
476 #define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
477 #define __IFLA_IPTUN_MAX 15
479 #define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1)
482 #if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
483 #define IFLA_BRIDGE_FLAGS 0
484 #define IFLA_BRIDGE_MODE 1
485 #define IFLA_BRIDGE_VLAN_INFO 2
486 #define __IFLA_BRIDGE_MAX 3
488 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)