[thirdparty/systemd.git] / src / shared / missing.h

/*-*- 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>
#include <linux/loop.h>
#include <linux/audit.h>
#include <linux/capability.h>

#ifdef HAVE_AUDIT
#include <libaudit.h>
#endif

#ifdef ARCH_MIPS
#include <asm/sgidefs.h>
#endif

#ifdef HAVE_LINUX_BTRFS_H
#include <linux/btrfs.h>
#endif

#include "macro.h"

#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 F_ADD_SEALS
#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)

#define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
#define F_SEAL_GROW     0x0004  /* prevent file from growing */
#define F_SEAL_WRITE    0x0008  /* prevent writes */
#endif

#ifndef F_OFD_GETLK
#define F_OFD_GETLK     36
#define F_OFD_SETLK     37
#define F_OFD_SETLKW    38
#endif

#ifndef MFD_ALLOW_SEALING
#define MFD_ALLOW_SEALING 0x0002U
#endif

#ifndef MFD_CLOEXEC
#define MFD_CLOEXEC 0x0001U
#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 SOL_NETLINK
#define SOL_NETLINK 270
#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

#ifndef __NR_memfd_create
#  if defined __x86_64__
#    define __NR_memfd_create 319
#  elif defined __arm__
#    define __NR_memfd_create 385
#  elif defined _MIPS_SIM
#    if _MIPS_SIM == _MIPS_SIM_ABI32
#      define __NR_memfd_create 4354
#    endif
#    if _MIPS_SIM == _MIPS_SIM_NABI32
#      define __NR_memfd_create 6318
#    endif
#    if _MIPS_SIM == _MIPS_SIM_ABI64
#      define __NR_memfd_create 5314
#    endif
#  elif defined __i386__
#    define __NR_memfd_create 356
#  else
#    warning "__NR_memfd_create unknown for your architecture"
#    define __NR_memfd_create 0xffffffff
#  endif
#endif

#ifndef HAVE_MEMFD_CREATE
static inline int memfd_create(const char *name, unsigned int flags) {
        return syscall(__NR_memfd_create, name, flags);
}
#endif

#ifndef __NR_getrandom
#  if defined __x86_64__
#    define __NR_getrandom 318
#  elif defined(__i386__)
#    define __NR_getrandom 355
#  elif defined(__arm__) || defined(__aarch64__)
#    define __NR_getrandom 384
#  elif defined(__ia64__)
#    define __NR_getrandom 1339
#  elif defined(__m68k__)
#    define __NR_getrandom 352
#  elif defined(__s390x__)
#    define __NR_getrandom 349
#  else
#    warning "__NR_getrandom unknown for your architecture"
#    define __NR_getrandom 0xffffffff
#  endif
#endif

#if !HAVE_DECL_GETRANDOM
static inline int getrandom(void *buffer, size_t count, unsigned flags) {
        return syscall(__NR_getrandom, buffer, count, flags);
}
#endif

#ifndef GRND_NONBLOCK
#define GRND_NONBLOCK 0x0001
#endif

#ifndef GRND_RANDOM
#define GRND_RANDOM 0x0002
#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_IOC_DEVICES_READY
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
                                 struct btrfs_ioctl_vol_args)
#endif

#ifndef BTRFS_FIRST_FREE_OBJECTID
#define BTRFS_FIRST_FREE_OBJECTID 256
#endif

#ifndef BTRFS_ROOT_TREE_OBJECTID
#define BTRFS_ROOT_TREE_OBJECTID 1
#endif

#ifndef BTRFS_QUOTA_TREE_OBJECTID
#define BTRFS_QUOTA_TREE_OBJECTID 8ULL
#endif

#ifndef BTRFS_ROOT_ITEM_KEY
#define BTRFS_ROOT_ITEM_KEY 132
#endif

#ifndef BTRFS_QGROUP_STATUS_KEY
#define BTRFS_QGROUP_STATUS_KEY 240
#endif

#ifndef BTRFS_QGROUP_INFO_KEY
#define BTRFS_QGROUP_INFO_KEY 242
#endif

#ifndef BTRFS_QGROUP_LIMIT_KEY
#define BTRFS_QGROUP_LIMIT_KEY 244
#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

#if !HAVE_DECL_LO_FLAGS_PARTSCAN
#define LO_FLAGS_PARTSCAN 8
#endif

#ifndef LOOP_CTL_REMOVE
#define LOOP_CTL_REMOVE 0x4C81
#endif

#ifndef LOOP_CTL_GET_FREE
#define LOOP_CTL_GET_FREE 0x4C82
#endif

#if !HAVE_DECL_IFLA_MACVLAN_FLAGS
#define IFLA_MACVLAN_UNSPEC 0
#define IFLA_MACVLAN_MODE 1
#define IFLA_MACVLAN_FLAGS 2
#define __IFLA_MACVLAN_MAX 3

#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_VTI_REMOTE
#define IFLA_VTI_UNSPEC 0
#define IFLA_VTI_LINK 1
#define IFLA_VTI_IKEY 2
#define IFLA_VTI_OKEY 3
#define IFLA_VTI_LOCAL 4
#define IFLA_VTI_REMOTE 5
#define __IFLA_VTI_MAX 6

#define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_PHYS_PORT_ID
#undef IFLA_PROMISCUITY
#define IFLA_PROMISCUITY 30
#define IFLA_NUM_TX_QUEUES 31
#define IFLA_NUM_RX_QUEUES 32
#define IFLA_CARRIER 33
#define IFLA_PHYS_PORT_ID 34
#define __IFLA_MAX 35

#define IFLA_MAX (__IFLA_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_BOND_AD_INFO
#define IFLA_BOND_UNSPEC 0
#define IFLA_BOND_MODE 1
#define IFLA_BOND_ACTIVE_SLAVE 2
#define IFLA_BOND_MIIMON 3
#define IFLA_BOND_UPDELAY 4
#define IFLA_BOND_DOWNDELAY 5
#define IFLA_BOND_USE_CARRIER 6
#define IFLA_BOND_ARP_INTERVAL 7
#define IFLA_BOND_ARP_IP_TARGET 8
#define IFLA_BOND_ARP_VALIDATE 9
#define IFLA_BOND_ARP_ALL_TARGETS 10
#define IFLA_BOND_PRIMARY 11
#define IFLA_BOND_PRIMARY_RESELECT 12
#define IFLA_BOND_FAIL_OVER_MAC 13
#define IFLA_BOND_XMIT_HASH_POLICY 14
#define IFLA_BOND_RESEND_IGMP 15
#define IFLA_BOND_NUM_PEER_NOTIF 16
#define IFLA_BOND_ALL_SLAVES_ACTIVE 17
#define IFLA_BOND_MIN_LINKS 18
#define IFLA_BOND_LP_INTERVAL 19
#define IFLA_BOND_PACKETS_PER_SLAVE 20
#define IFLA_BOND_AD_LACP_RATE 21
#define IFLA_BOND_AD_SELECT 22
#define IFLA_BOND_AD_INFO 23
#define __IFLA_BOND_MAX 24

#define IFLA_BOND_MAX   (__IFLA_BOND_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_VLAN_PROTOCOL
#define IFLA_VLAN_UNSPEC 0
#define IFLA_VLAN_ID 1
#define IFLA_VLAN_FLAGS 2
#define IFLA_VLAN_EGRESS_QOS 3
#define IFLA_VLAN_INGRESS_QOS 4
#define IFLA_VLAN_PROTOCOL 5
#define __IFLA_VLAN_MAX 6

#define IFLA_VLAN_MAX   (__IFLA_VLAN_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_VXLAN_LOCAL6
#define IFLA_VXLAN_UNSPEC 0
#define IFLA_VXLAN_ID 1
#define IFLA_VXLAN_GROUP 2
#define IFLA_VXLAN_LINK 3
#define IFLA_VXLAN_LOCAL 4
#define IFLA_VXLAN_TTL 5
#define IFLA_VXLAN_TOS 6
#define IFLA_VXLAN_LEARNING 7
#define IFLA_VXLAN_AGEING 8
#define IFLA_VXLAN_LIMIT 9
#define IFLA_VXLAN_PORT_RANGE 10
#define IFLA_VXLAN_PROXY 11
#define IFLA_VXLAN_RSC 12
#define IFLA_VXLAN_L2MISS 13
#define IFLA_VXLAN_L3MISS 14
#define IFLA_VXLAN_PORT 15
#define IFLA_VXLAN_GROUP6 16
#define IFLA_VXLAN_LOCAL6 17
#define __IFLA_VXLAN_MAX 18

#define IFLA_VXLAN_MAX  (__IFLA_VXLAN_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_IPTUN_6RD_RELAY_PREFIXLEN
#define IFLA_IPTUN_UNSPEC 0
#define IFLA_IPTUN_LINK 1
#define IFLA_IPTUN_LOCAL 2
#define IFLA_IPTUN_REMOTE 3
#define IFLA_IPTUN_TTL 4
#define IFLA_IPTUN_TOS 5
#define IFLA_IPTUN_ENCAP_LIMIT 6
#define IFLA_IPTUN_FLOWINFO 7
#define IFLA_IPTUN_FLAGS 8
#define IFLA_IPTUN_PROTO 9
#define IFLA_IPTUN_PMTUDISC 10
#define IFLA_IPTUN_6RD_PREFIX 11
#define IFLA_IPTUN_6RD_RELAY_PREFIX 12
#define IFLA_IPTUN_6RD_PREFIXLEN 13
#define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
#define __IFLA_IPTUN_MAX 15

#define IFLA_IPTUN_MAX  (__IFLA_IPTUN_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
#define IFLA_BRIDGE_FLAGS 0
#define IFLA_BRIDGE_MODE 1
#define IFLA_BRIDGE_VLAN_INFO 2
#define __IFLA_BRIDGE_MAX 3

#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
#endif

#if !HAVE_DECL_IFLA_BRPORT_UNICAST_FLOOD
#define IFLA_BRPORT_UNSPEC 0
#define IFLA_BRPORT_STATE 1
#define IFLA_BRPORT_PRIORITY 2
#define IFLA_BRPORT_COST 3
#define IFLA_BRPORT_MODE 4
#define IFLA_BRPORT_GUARD 5
#define IFLA_BRPORT_PROTECT 6
#define IFLA_BRPORT_FAST_LEAVE 7
#define IFLA_BRPORT_LEARNING 8
#define IFLA_BRPORT_UNICAST_FLOOD 9
#define __IFLA_BRPORT_MAX 10

#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
#endif

#ifndef IPV6_UNICAST_IF
#define IPV6_UNICAST_IF 76
#endif

#ifndef IFF_MULTI_QUEUE
#define IFF_MULTI_QUEUE 0x100
#endif

#ifndef IFF_LOWER_UP
#define IFF_LOWER_UP 0x10000
#endif

#ifndef IFF_DORMANT
#define IFF_DORMANT 0x20000
#endif

#ifndef BOND_XMIT_POLICY_ENCAP23
#define BOND_XMIT_POLICY_ENCAP23 3
#endif

#ifndef BOND_XMIT_POLICY_ENCAP34
#define BOND_XMIT_POLICY_ENCAP34 4
#endif

#ifndef NET_ADDR_RANDOM
#  define NET_ADDR_RANDOM 1
#endif

#ifndef NET_NAME_UNKNOWN
#  define NET_NAME_UNKNOWN 0
#endif

#ifndef NET_NAME_ENUM
#  define NET_NAME_ENUM 1
#endif

#ifndef NET_NAME_PREDICTABLE
#  define NET_NAME_PREDICTABLE 2
#endif

#ifndef NET_NAME_USER
#  define NET_NAME_USER 3
#endif

#ifndef NET_NAME_RENAMED
#  define NET_NAME_RENAMED 4
#endif

#ifndef BPF_XOR
#  define BPF_XOR 0xa0
#endif

/* Note that LOOPBACK_IFINDEX is currently not exported by the
 * kernel/glibc, but hardcoded internally by the kernel.  However, as
 * it is exported to userspace indirectly via rtnetlink and the
 * ioctls, and made use of widely we define it here too, in a way that
 * is compatible with the kernel's internal definition. */
#ifndef LOOPBACK_IFINDEX
#define LOOPBACK_IFINDEX 1
#endif

#ifndef MAX_AUDIT_MESSAGE_LENGTH
#define MAX_AUDIT_MESSAGE_LENGTH 8970
#endif

#ifndef AUDIT_NLGRP_MAX
#define AUDIT_NLGRP_READLOG 1
#endif

#ifndef CAP_MAC_OVERRIDE
#define CAP_MAC_OVERRIDE 32
#endif

#ifndef CAP_MAC_ADMIN
#define CAP_MAC_ADMIN 33
#endif

#ifndef CAP_SYSLOG
#define CAP_SYSLOG 34
#endif

#ifndef CAP_WAKE_ALARM
#define CAP_WAKE_ALARM 35
#endif

#ifndef CAP_BLOCK_SUSPEND
#define CAP_BLOCK_SUSPEND 36
#endif

#ifndef CAP_AUDIT_READ
#define CAP_AUDIT_READ 37
#endif

static inline int raw_clone(unsigned long flags, void *child_stack) {
#if defined(__s390__) || defined(__CRIS__)
        /* On s390 and cris the order of the first and second arguments
         * of the raw clone() system call is reversed. */
        return (int) syscall(__NR_clone, child_stack, flags);
#else
        return (int) syscall(__NR_clone, flags, child_stack);
#endif
}

static inline pid_t raw_getpid(void) {
        return (pid_t) syscall(__NR_getpid);
}

#if !HAVE_DECL_RENAMEAT2

#ifndef __NR_renameat2
#  if defined __x86_64__
#    define __NR_renameat2 316
#  elif defined __arm__
#    define __NR_renameat2 382
#  elif defined _MIPS_SIM
#    if _MIPS_SIM == _MIPS_SIM_ABI32
#      define __NR_renameat2 4351
#    endif
#    if _MIPS_SIM == _MIPS_SIM_NABI32
#      define __NR_renameat2 6315
#    endif
#    if _MIPS_SIM == _MIPS_SIM_ABI64
#      define __NR_renameat2 5311
#    endif
#  elif defined __i386__
#    define __NR_renameat2 353
#  else
#    warning "__NR_renameat2 unknown for your architecture"
#    define __NR_renameat2 0xffffffff
#  endif
#endif

static inline int renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
        return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
}
#endif

#ifndef RENAME_NOREPLACE
#define RENAME_NOREPLACE (1 << 0)
#endif

#if !HAVE_DECL_KCMP
static inline int kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
        return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
}
#endif

#ifndef KCMP_FILE
#define KCMP_FILE 0
#endif
Commit	Line	Data
03467c88	1	/-- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil --/
15ae422b	2
c2f1db8f	3	#pragma once
b9f880f4	4
15ae422b LP	5	/***
	6	This file is part of systemd.
	7
	8	Copyright 2010 Lennart Poettering
	9
	10	systemd is free software; you can redistribute it and/or modify it
5430f7f2 LP	11	under the terms of the GNU Lesser General Public License as published by
5430f7f2 LP	12	the Free Software Foundation; either version 2.1 of the License, or
15ae422b LP	13	(at your option) any later version.
	14
	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
5430f7f2	18	Lesser General Public License for more details.
15ae422b	19
5430f7f2	20	You should have received a copy of the GNU Lesser General Public License
15ae422b LP	21	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	22	***/
	23
b9f880f4 LP	24	/* Missing glibc definitions to access certain kernel APIs */
	25
	26	#include <sys/resource.h>
15ae422b	27	#include <sys/syscall.h>
16c42ce1	28	#include <fcntl.h>
4db17f29	29	#include <stdlib.h>
82c121a4	30	#include <unistd.h>
3b794314	31	#include <errno.h>
dd6c17b1	32	#include <linux/oom.h>
118ecf32	33	#include <linux/input.h>
d5eff740	34	#include <linux/if_link.h>
a853c45d	35	#include <linux/loop.h>
875c2e22	36	#include <linux/audit.h>
2822da4f	37	#include <linux/capability.h>
dd6c17b1 LP	38
	39	#ifdef HAVE_AUDIT
	40	#include <libaudit.h>
	41	#endif
b9f880f4	42
d59d0a2b	43	#ifdef ARCH_MIPS
	44	#include <asm/sgidefs.h>
	45	#endif
	46
700c6087 LP	47	#ifdef HAVE_LINUX_BTRFS_H
	48	#include <linux/btrfs.h>
	49	#endif
	50
a60e9f7f LP	51	#include "macro.h"
a60e9f7f LP	52
b9f880f4 LP	53	#ifndef RLIMIT_RTTIME
	54	#define RLIMIT_RTTIME 15
	55	#endif
	56
517d56b1 LP	57	/* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */
	58	#define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS)
	59
4fd5948e LP	60	#ifndef F_LINUX_SPECIFIC_BASE
	61	#define F_LINUX_SPECIFIC_BASE 1024
	62	#endif
	63
	64	#ifndef F_SETPIPE_SZ
	65	#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
	66	#endif
	67
	68	#ifndef F_GETPIPE_SZ
	69	#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
	70	#endif
	71
a6082d77 DM	72	#ifndef F_ADD_SEALS
a6082d77 DM	73	#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
a6082d77	74	#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
a6082d77	75
a6082d77	76	#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
a6082d77	77	#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
a6082d77	78	#define F_SEAL_GROW 0x0004 /* prevent file from growing */
a6082d77 DM	79	#define F_SEAL_WRITE 0x0008 /* prevent writes */
	80	#endif
	81
f4a53250 MM	82	#ifndef F_OFD_GETLK
	83	#define F_OFD_GETLK 36
	84	#define F_OFD_SETLK 37
	85	#define F_OFD_SETLKW 38
	86	#endif
	87
a6082d77	88	#ifndef MFD_ALLOW_SEALING
45071fca LP	89	#define MFD_ALLOW_SEALING 0x0002U
	90	#endif
	91
	92	#ifndef MFD_CLOEXEC
	93	#define MFD_CLOEXEC 0x0001U
a6082d77 DM	94	#endif
a6082d77 DM	95
16c42ce1 KS	96	#ifndef IP_FREEBIND
	97	#define IP_FREEBIND 15
	98	#endif
	99
dd6c17b1 LP	100	#ifndef OOM_SCORE_ADJ_MIN
	101	#define OOM_SCORE_ADJ_MIN (-1000)
	102	#endif
	103
	104	#ifndef OOM_SCORE_ADJ_MAX
	105	#define OOM_SCORE_ADJ_MAX 1000
	106	#endif
15ae422b	107
4927fcae	108	#ifndef AUDIT_SERVICE_START
dd6c17b1	109	#define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
4927fcae LP	110	#endif
	111
	112	#ifndef AUDIT_SERVICE_STOP
dd6c17b1	113	#define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
4927fcae LP	114	#endif
4927fcae LP	115
6ea832a2 LP	116	#ifndef TIOCVHANGUP
	117	#define TIOCVHANGUP 0x5437
	118	#endif
	119
b90865ba KS	120	#ifndef IP_TRANSPARENT
	121	#define IP_TRANSPARENT 19
	122	#endif
	123
66269b05 TG	124	#ifndef SOL_NETLINK
	125	#define SOL_NETLINK 270
	126	#endif
	127
a8348796	128	#if !HAVE_DECL_PIVOT_ROOT
dd6c17b1 LP	129	static inline int pivot_root(const char new_root, const char put_old) {
	130	return syscall(SYS_pivot_root, new_root, put_old);
	131	}
a8348796	132	#endif
dd6c17b1	133
b244d9f3 LP	134	#ifndef __NR_memfd_create
b244d9f3 LP	135	# if defined __x86_64__
a6082d77	136	# define __NR_memfd_create 319
b244d9f3	137	# elif defined __arm__
a6082d77	138	# define __NR_memfd_create 385
b244d9f3	139	# elif defined _MIPS_SIM
e6c01902 VOR	140	# if _MIPS_SIM == _MIPS_SIM_ABI32
	141	# define __NR_memfd_create 4354
	142	# endif
	143	# if _MIPS_SIM == _MIPS_SIM_NABI32
	144	# define __NR_memfd_create 6318
	145	# endif
	146	# if _MIPS_SIM == _MIPS_SIM_ABI64
	147	# define __NR_memfd_create 5314
	148	# endif
03e8fdb3	149	# elif defined __i386__
a6082d77	150	# define __NR_memfd_create 356
03e8fdb3 DH	151	# else
	152	# warning "__NR_memfd_create unknown for your architecture"
	153	# define __NR_memfd_create 0xffffffff
a6082d77	154	# endif
22be093f LP	155	#endif
22be093f LP	156
a6082d77	157	#ifndef HAVE_MEMFD_CREATE
06b7f7bd	158	static inline int memfd_create(const char *name, unsigned int flags) {
46327770	159	return syscall(__NR_memfd_create, name, flags);
a6082d77 DM	160	}
	161	#endif
	162
539618a0 LP	163	#ifndef __NR_getrandom
539618a0 LP	164	# if defined __x86_64__
74a550c5	165	# define __NR_getrandom 318
568981d2 ZJS	166	# elif defined(__i386__)
	167	# define __NR_getrandom 355
	168	# elif defined(__arm__) \|\| defined(__aarch64__)
	169	# define __NR_getrandom 384
	170	# elif defined(__ia64__)
	171	# define __NR_getrandom 1339
	172	# elif defined(__m68k__)
	173	# define __NR_getrandom 352
	174	# elif defined(__s390x__)
	175	# define __NR_getrandom 349
539618a0 LP	176	# else
	177	# warning "__NR_getrandom unknown for your architecture"
	178	# define __NR_getrandom 0xffffffff
	179	# endif
	180	#endif
	181
	182	#if !HAVE_DECL_GETRANDOM
	183	static inline int getrandom(void *buffer, size_t count, unsigned flags) {
	184	return syscall(__NR_getrandom, buffer, count, flags);
	185	}
	186	#endif
	187
97768fc5 LP	188	#ifndef GRND_NONBLOCK
	189	#define GRND_NONBLOCK 0x0001
	190	#endif
	191
	192	#ifndef GRND_RANDOM
	193	#define GRND_RANDOM 0x0002
	194	#endif
	195
4b357e15 MM	196	#ifndef BTRFS_IOCTL_MAGIC
	197	#define BTRFS_IOCTL_MAGIC 0x94
	198	#endif
	199
	200	#ifndef BTRFS_PATH_NAME_MAX
	201	#define BTRFS_PATH_NAME_MAX 4087
	202	#endif
	203
	204	#ifndef BTRFS_DEVICE_PATH_NAME_MAX
	205	#define BTRFS_DEVICE_PATH_NAME_MAX 1024
	206	#endif
	207
	208	#ifndef BTRFS_FSID_SIZE
	209	#define BTRFS_FSID_SIZE 16
	210	#endif
	211
	212	#ifndef BTRFS_UUID_SIZE
	213	#define BTRFS_UUID_SIZE 16
	214	#endif
	215
	216	#ifndef HAVE_LINUX_BTRFS_H
	217	struct btrfs_ioctl_vol_args {
	218	int64_t fd;
	219	char name[BTRFS_PATH_NAME_MAX + 1];
	220	};
	221
	222	struct btrfs_ioctl_dev_info_args {
	223	uint64_t devid; /* in/out */
	224	uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */
	225	uint64_t bytes_used; /* out */
	226	uint64_t total_bytes; /* out */
	227	uint64_t unused[379]; /* pad to 4k */
	228	char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
	229	};
	230
	231	struct btrfs_ioctl_fs_info_args {
	232	uint64_t max_id; /* out */
	233	uint64_t num_devices; /* out */
	234	uint8_t fsid[BTRFS_FSID_SIZE]; /* out */
	235	uint64_t reserved[124]; /* pad to 1k */
	236	};
	237	#endif
	238
	239	#ifndef BTRFS_IOC_DEFRAG
7bed7f0e ZJS	240	#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
7bed7f0e ZJS	241	struct btrfs_ioctl_vol_args)
4b357e15 MM	242	#endif
	243
	244	#ifndef BTRFS_IOC_DEV_INFO
	245	#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
	246	struct btrfs_ioctl_dev_info_args)
	247	#endif
	248
	249	#ifndef BTRFS_IOC_FS_INFO
	250	#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
7bed7f0e ZJS	251	struct btrfs_ioctl_fs_info_args)
	252	#endif
	253
	254	#ifndef BTRFS_IOC_DEVICES_READY
	255	#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
	256	struct btrfs_ioctl_vol_args)
4b357e15 MM	257	#endif
4b357e15 MM	258
10f9c755 LP	259	#ifndef BTRFS_FIRST_FREE_OBJECTID
	260	#define BTRFS_FIRST_FREE_OBJECTID 256
	261	#endif
	262
b6b18498 LP	263	#ifndef BTRFS_ROOT_TREE_OBJECTID
	264	#define BTRFS_ROOT_TREE_OBJECTID 1
	265	#endif
	266
	267	#ifndef BTRFS_QUOTA_TREE_OBJECTID
	268	#define BTRFS_QUOTA_TREE_OBJECTID 8ULL
	269	#endif
	270
10f9c755 LP	271	#ifndef BTRFS_ROOT_ITEM_KEY
	272	#define BTRFS_ROOT_ITEM_KEY 132
	273	#endif
	274
b6b18498 LP	275	#ifndef BTRFS_QGROUP_STATUS_KEY
	276	#define BTRFS_QGROUP_STATUS_KEY 240
	277	#endif
	278
	279	#ifndef BTRFS_QGROUP_INFO_KEY
	280	#define BTRFS_QGROUP_INFO_KEY 242
	281	#endif
	282
	283	#ifndef BTRFS_QGROUP_LIMIT_KEY
	284	#define BTRFS_QGROUP_LIMIT_KEY 244
	285	#endif
	286
746f8906 LP	287	#ifndef BTRFS_SUPER_MAGIC
	288	#define BTRFS_SUPER_MAGIC 0x9123683E
	289	#endif
	290
94d82985 LP	291	#ifndef MS_MOVE
	292	#define MS_MOVE 8192
	293	#endif
	294
7cb1094a HH	295	#ifndef MS_PRIVATE
	296	#define MS_PRIVATE (1 << 18)
	297	#endif
	298
a8348796	299	#if !HAVE_DECL_GETTID
4d14be09 LP	300	static inline pid_t gettid(void) {
	301	return (pid_t) syscall(SYS_gettid);
	302	}
a8348796	303	#endif
4d14be09	304
54ecda32 LP	305	#ifndef SCM_SECURITY
	306	#define SCM_SECURITY 0x03
	307	#endif
	308
48ac500b LP	309	#ifndef MS_STRICTATIME
	310	#define MS_STRICTATIME (1<<24)
	311	#endif
	312
a9621528 AM	313	#ifndef MS_REC
	314	#define MS_REC 16384
	315	#endif
	316
	317	#ifndef MS_SHARED
	318	#define MS_SHARED (1<<20)
	319	#endif
	320
8351ceae LP	321	#ifndef PR_SET_NO_NEW_PRIVS
	322	#define PR_SET_NO_NEW_PRIVS 38
	323	#endif
d4447f4d AK	324
	325	#ifndef PR_SET_CHILD_SUBREAPER
	326	#define PR_SET_CHILD_SUBREAPER 36
	327	#endif
a8348796 LP	328
	329	#ifndef MAX_HANDLE_SZ
	330	#define MAX_HANDLE_SZ 128
	331	#endif
	332
66330455 LP	333	#ifndef __NR_name_to_handle_at
66330455 LP	334	# if defined(__x86_64__)
848af055	335	# define __NR_name_to_handle_at 303
66330455	336	# elif defined(__i386__)
848af055	337	# define __NR_name_to_handle_at 341
66330455	338	# elif defined(__arm__)
f527b6b8	339	# define __NR_name_to_handle_at 370
66330455	340	# elif defined(__powerpc__)
f527b6b8	341	# define __NR_name_to_handle_at 345
66330455 LP	342	# else
66330455 LP	343	# error "__NR_name_to_handle_at is not defined"
f527b6b8	344	# endif
a8348796 LP	345	#endif
a8348796 LP	346
9388e99e	347	#if !HAVE_DECL_NAME_TO_HANDLE_AT
a8348796 LP	348	struct file_handle {
	349	unsigned int handle_bytes;
	350	int handle_type;
	351	unsigned char f_handle[0];
	352	};
	353
	354	static inline int name_to_handle_at(int fd, const char name, struct file_handle handle, int *mnt_id, int flags) {
	355	return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
	356	}
	357	#endif
4db17f29 ZJS	358
	359	#ifndef HAVE_SECURE_GETENV
	360	# ifdef HAVE___SECURE_GETENV
	361	# define secure_getenv __secure_getenv
	362	# else
66330455	363	# error "neither secure_getenv nor __secure_getenv are available"
4db17f29 ZJS	364	# endif
4db17f29 ZJS	365	#endif
85210bff LP	366
85210bff LP	367	#ifndef CIFS_MAGIC_NUMBER
65b3903f	368	# define CIFS_MAGIC_NUMBER 0xFF534D42
85210bff	369	#endif
8742514c LP	370
8742514c LP	371	#ifndef TFD_TIMER_CANCEL_ON_SET
65b3903f	372	# define TFD_TIMER_CANCEL_ON_SET (1 << 1)
8742514c	373	#endif
f7db7a69 SL	374
f7db7a69 SL	375	#ifndef SO_REUSEPORT
65b3903f	376	# define SO_REUSEPORT 15
f7db7a69	377	#endif
118ecf32 DH	378
118ecf32 DH	379	#ifndef EVIOCREVOKE
65b3903f	380	# define EVIOCREVOKE _IOW('E', 0x91, int)
118ecf32 DH	381	#endif
	382
	383	#ifndef DRM_IOCTL_SET_MASTER
65b3903f	384	# define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
118ecf32 DH	385	#endif
	386
	387	#ifndef DRM_IOCTL_DROP_MASTER
65b3903f ZJS	388	# define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
	389	#endif
	390
c09918f9 LP	391	#if defined(__i386__) \|\| defined(__x86_64__)
	392
	393	/* The precise definition of __O_TMPFILE is arch specific, so let's
	394	* just define this on x86 where we know the value. */
	395
	396	#ifndef __O_TMPFILE
	397	#define __O_TMPFILE 020000000
	398	#endif
	399
	400	/* a horrid kludge trying to make sure that this will fail on old kernels */
	401	#ifndef O_TMPFILE
	402	#define O_TMPFILE (__O_TMPFILE \| O_DIRECTORY)
	403	#endif
	404
	405	#endif
3b794314 HS	406
	407	#ifndef __NR_setns
	408	# if defined(__x86_64__)
	409	# define __NR_setns 308
	410	# elif defined(__i386__)
	411	# define __NR_setns 346
	412	# else
	413	# error "__NR_setns is not defined"
	414	# endif
	415	#endif
	416
	417	#if !HAVE_DECL_SETNS
	418	static inline int setns(int fd, int nstype) {
	419	return syscall(__NR_setns, fd, nstype);
	420	}
	421	#endif
5f381b35 LP	422
	423	#if !HAVE_DECL_LO_FLAGS_PARTSCAN
	424	#define LO_FLAGS_PARTSCAN 8
	425	#endif
a853c45d LP	426
	427	#ifndef LOOP_CTL_REMOVE
	428	#define LOOP_CTL_REMOVE 0x4C81
	429	#endif
	430
	431	#ifndef LOOP_CTL_GET_FREE
	432	#define LOOP_CTL_GET_FREE 0x4C82
	433	#endif
0830ba61	434
75616a13 ZJS	435	#if !HAVE_DECL_IFLA_MACVLAN_FLAGS
	436	#define IFLA_MACVLAN_UNSPEC 0
	437	#define IFLA_MACVLAN_MODE 1
	438	#define IFLA_MACVLAN_FLAGS 2
	439	#define __IFLA_MACVLAN_MAX 3
	440
	441	#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
	442	#endif
	443
6589d0db JAS	444	#if !HAVE_DECL_IFLA_VTI_REMOTE
	445	#define IFLA_VTI_UNSPEC 0
	446	#define IFLA_VTI_LINK 1
	447	#define IFLA_VTI_IKEY 2
	448	#define IFLA_VTI_OKEY 3
	449	#define IFLA_VTI_LOCAL 4
	450	#define IFLA_VTI_REMOTE 5
	451	#define __IFLA_VTI_MAX 6
	452
	453	#define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)
	454	#endif
	455
81577dc2 ZJS	456	#if !HAVE_DECL_IFLA_PHYS_PORT_ID
	457	#undef IFLA_PROMISCUITY
	458	#define IFLA_PROMISCUITY 30
	459	#define IFLA_NUM_TX_QUEUES 31
	460	#define IFLA_NUM_RX_QUEUES 32
	461	#define IFLA_CARRIER 33
	462	#define IFLA_PHYS_PORT_ID 34
	463	#define __IFLA_MAX 35
	464
	465	#define IFLA_MAX (__IFLA_MAX - 1)
	466	#endif
	467
	468	#if !HAVE_DECL_IFLA_BOND_AD_INFO
	469	#define IFLA_BOND_UNSPEC 0
	470	#define IFLA_BOND_MODE 1
	471	#define IFLA_BOND_ACTIVE_SLAVE 2
	472	#define IFLA_BOND_MIIMON 3
	473	#define IFLA_BOND_UPDELAY 4
	474	#define IFLA_BOND_DOWNDELAY 5
	475	#define IFLA_BOND_USE_CARRIER 6
	476	#define IFLA_BOND_ARP_INTERVAL 7
	477	#define IFLA_BOND_ARP_IP_TARGET 8
	478	#define IFLA_BOND_ARP_VALIDATE 9
	479	#define IFLA_BOND_ARP_ALL_TARGETS 10
	480	#define IFLA_BOND_PRIMARY 11
	481	#define IFLA_BOND_PRIMARY_RESELECT 12
	482	#define IFLA_BOND_FAIL_OVER_MAC 13
	483	#define IFLA_BOND_XMIT_HASH_POLICY 14
	484	#define IFLA_BOND_RESEND_IGMP 15
	485	#define IFLA_BOND_NUM_PEER_NOTIF 16
	486	#define IFLA_BOND_ALL_SLAVES_ACTIVE 17
	487	#define IFLA_BOND_MIN_LINKS 18
	488	#define IFLA_BOND_LP_INTERVAL 19
	489	#define IFLA_BOND_PACKETS_PER_SLAVE 20
	490	#define IFLA_BOND_AD_LACP_RATE 21
	491	#define IFLA_BOND_AD_SELECT 22
	492	#define IFLA_BOND_AD_INFO 23
	493	#define __IFLA_BOND_MAX 24
0830ba61	494
79306206	495	#define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
0830ba61	496	#endif
81577dc2 ZJS	497
	498	#if !HAVE_DECL_IFLA_VLAN_PROTOCOL
	499	#define IFLA_VLAN_UNSPEC 0
	500	#define IFLA_VLAN_ID 1
	501	#define IFLA_VLAN_FLAGS 2
	502	#define IFLA_VLAN_EGRESS_QOS 3
	503	#define IFLA_VLAN_INGRESS_QOS 4
	504	#define IFLA_VLAN_PROTOCOL 5
	505	#define __IFLA_VLAN_MAX 6
	506
	507	#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
	508	#endif
	509
	510	#if !HAVE_DECL_IFLA_VXLAN_LOCAL6
	511	#define IFLA_VXLAN_UNSPEC 0
	512	#define IFLA_VXLAN_ID 1
	513	#define IFLA_VXLAN_GROUP 2
	514	#define IFLA_VXLAN_LINK 3
	515	#define IFLA_VXLAN_LOCAL 4
	516	#define IFLA_VXLAN_TTL 5
	517	#define IFLA_VXLAN_TOS 6
	518	#define IFLA_VXLAN_LEARNING 7
	519	#define IFLA_VXLAN_AGEING 8
	520	#define IFLA_VXLAN_LIMIT 9
	521	#define IFLA_VXLAN_PORT_RANGE 10
	522	#define IFLA_VXLAN_PROXY 11
	523	#define IFLA_VXLAN_RSC 12
	524	#define IFLA_VXLAN_L2MISS 13
	525	#define IFLA_VXLAN_L3MISS 14
	526	#define IFLA_VXLAN_PORT 15
	527	#define IFLA_VXLAN_GROUP6 16
	528	#define IFLA_VXLAN_LOCAL6 17
	529	#define __IFLA_VXLAN_MAX 18
	530
	531	#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
	532	#endif
	533
	534	#if !HAVE_DECL_IFLA_IPTUN_6RD_RELAY_PREFIXLEN
	535	#define IFLA_IPTUN_UNSPEC 0
	536	#define IFLA_IPTUN_LINK 1
	537	#define IFLA_IPTUN_LOCAL 2
	538	#define IFLA_IPTUN_REMOTE 3
	539	#define IFLA_IPTUN_TTL 4
	540	#define IFLA_IPTUN_TOS 5
	541	#define IFLA_IPTUN_ENCAP_LIMIT 6
	542	#define IFLA_IPTUN_FLOWINFO 7
	543	#define IFLA_IPTUN_FLAGS 8
	544	#define IFLA_IPTUN_PROTO 9
	545	#define IFLA_IPTUN_PMTUDISC 10
	546	#define IFLA_IPTUN_6RD_PREFIX 11
	547	#define IFLA_IPTUN_6RD_RELAY_PREFIX 12
	548	#define IFLA_IPTUN_6RD_PREFIXLEN 13
	549	#define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
	550	#define __IFLA_IPTUN_MAX 15
	551
	552	#define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1)
	553	#endif
	554
	555	#if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
	556	#define IFLA_BRIDGE_FLAGS 0
	557	#define IFLA_BRIDGE_MODE 1
	558	#define IFLA_BRIDGE_VLAN_INFO 2
	559	#define __IFLA_BRIDGE_MAX 3
	560
561	#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
562	#endif
623a4c97	563
8ecec322 ZJS	564	#if !HAVE_DECL_IFLA_BRPORT_UNICAST_FLOOD
	565	#define IFLA_BRPORT_UNSPEC 0
	566	#define IFLA_BRPORT_STATE 1
	567	#define IFLA_BRPORT_PRIORITY 2
	568	#define IFLA_BRPORT_COST 3
	569	#define IFLA_BRPORT_MODE 4
	570	#define IFLA_BRPORT_GUARD 5
	571	#define IFLA_BRPORT_PROTECT 6
	572	#define IFLA_BRPORT_FAST_LEAVE 7
	573	#define IFLA_BRPORT_LEARNING 8
	574	#define IFLA_BRPORT_UNICAST_FLOOD 9
	575	#define __IFLA_BRPORT_MAX 10
	576
	577	#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
	578	#endif
	579
623a4c97 LP	580	#ifndef IPV6_UNICAST_IF
	581	#define IPV6_UNICAST_IF 76
	582	#endif
ec2c5e43	583
04d180c8 TG	584	#ifndef IFF_MULTI_QUEUE
	585	#define IFF_MULTI_QUEUE 0x100
	586	#endif
	587
ec2c5e43 LP	588	#ifndef IFF_LOWER_UP
	589	#define IFF_LOWER_UP 0x10000
	590	#endif
	591
	592	#ifndef IFF_DORMANT
	593	#define IFF_DORMANT 0x20000
	594	#endif
91988149 LP	595
	596	#ifndef BOND_XMIT_POLICY_ENCAP23
	597	#define BOND_XMIT_POLICY_ENCAP23 3
	598	#endif
	599
	600	#ifndef BOND_XMIT_POLICY_ENCAP34
	601	#define BOND_XMIT_POLICY_ENCAP34 4
	602	#endif
04b67d49 TG	603
	604	#ifndef NET_ADDR_RANDOM
	605	# define NET_ADDR_RANDOM 1
	606	#endif
	607
1cb636d9 CW	608	#ifndef NET_NAME_UNKNOWN
	609	# define NET_NAME_UNKNOWN 0
	610	#endif
	611
04b67d49 TG	612	#ifndef NET_NAME_ENUM
	613	# define NET_NAME_ENUM 1
	614	#endif
	615
	616	#ifndef NET_NAME_PREDICTABLE
	617	# define NET_NAME_PREDICTABLE 2
	618	#endif
	619
	620	#ifndef NET_NAME_USER
	621	# define NET_NAME_USER 3
	622	#endif
	623
	624	#ifndef NET_NAME_RENAMED
	625	# define NET_NAME_RENAMED 4
	626	#endif
7965435e MO	627
	628	#ifndef BPF_XOR
	629	# define BPF_XOR 0xa0
	630	#endif
a5f03596 LP	631
	632	/* Note that LOOPBACK_IFINDEX is currently not exported by the
	633	* kernel/glibc, but hardcoded internally by the kernel. However, as
	634	* it is exported to userspace indirectly via rtnetlink and the
	635	* ioctls, and made use of widely we define it here too, in a way that
	636	* is compatible with the kernel's internal definition. */
	637	#ifndef LOOPBACK_IFINDEX
	638	#define LOOPBACK_IFINDEX 1
	639	#endif
875c2e22 LP	640
	641	#ifndef MAX_AUDIT_MESSAGE_LENGTH
	642	#define MAX_AUDIT_MESSAGE_LENGTH 8970
	643	#endif
	644
	645	#ifndef AUDIT_NLGRP_MAX
	646	#define AUDIT_NLGRP_READLOG 1
	647	#endif
2822da4f LP	648
	649	#ifndef CAP_MAC_OVERRIDE
	650	#define CAP_MAC_OVERRIDE 32
	651	#endif
	652
	653	#ifndef CAP_MAC_ADMIN
	654	#define CAP_MAC_ADMIN 33
	655	#endif
	656
	657	#ifndef CAP_SYSLOG
	658	#define CAP_SYSLOG 34
	659	#endif
	660
	661	#ifndef CAP_WAKE_ALARM
	662	#define CAP_WAKE_ALARM 35
	663	#endif
	664
	665	#ifndef CAP_BLOCK_SUSPEND
	666	#define CAP_BLOCK_SUSPEND 36
	667	#endif
	668
	669	#ifndef CAP_AUDIT_READ
	670	#define CAP_AUDIT_READ 37
	671	#endif
60e1651a	672
ee05e779	673	static inline int raw_clone(unsigned long flags, void *child_stack) {
60e1651a KW	674	#if defined(__s390__) \|\| defined(__CRIS__)
	675	/* On s390 and cris the order of the first and second arguments
	676	* of the raw clone() system call is reversed. */
ee05e779	677	return (int) syscall(__NR_clone, child_stack, flags);
60e1651a	678	#else
ee05e779	679	return (int) syscall(__NR_clone, flags, child_stack);
60e1651a KW	680	#endif
60e1651a KW	681	}
ee05e779 ZJS	682
	683	static inline pid_t raw_getpid(void) {
	684	return (pid_t) syscall(__NR_getpid);
	685	}
ebd93cb6 LP	686
ebd93cb6 LP	687	#if !HAVE_DECL_RENAMEAT2
e65ef51d ZJS	688
	689	#ifndef __NR_renameat2
	690	# if defined __x86_64__
	691	# define __NR_renameat2 316
	692	# elif defined __arm__
	693	# define __NR_renameat2 382
	694	# elif defined _MIPS_SIM
	695	# if _MIPS_SIM == _MIPS_SIM_ABI32
	696	# define __NR_renameat2 4351
	697	# endif
	698	# if _MIPS_SIM == _MIPS_SIM_NABI32
	699	# define __NR_renameat2 6315
	700	# endif
	701	# if _MIPS_SIM == _MIPS_SIM_ABI64
	702	# define __NR_renameat2 5311
	703	# endif
	704	# elif defined __i386__
	705	# define __NR_renameat2 353
	706	# else
	707	# warning "__NR_renameat2 unknown for your architecture"
	708	# define __NR_renameat2 0xffffffff
	709	# endif
	710	#endif
	711
ebd93cb6 LP	712	static inline int renameat2(int oldfd, const char oldname, int newfd, const char newname, unsigned flags) {
	713	return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
	714	}
	715	#endif
	716
	717	#ifndef RENAME_NOREPLACE
	718	#define RENAME_NOREPLACE (1 << 0)
	719	#endif
f7ad54a3 LP	720
	721	#if !HAVE_DECL_KCMP
	722	static inline int kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
	723	return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
	724	}
	725	#endif
	726
	727	#ifndef KCMP_FILE
	728	#define KCMP_FILE 0
	729	#endif