X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fmissing.h;h=c547479ad277651058a96d117742b153f572ba67;hp=ac6f5bf6afdee84db171176f1618d340b0237d11;hb=700c6087eb58de7af510f747414ea97b07e08b2b;hpb=0f010ef2130e887347212d4a3f81abafc78985a0

diff --git a/src/shared/missing.h b/src/shared/missing.h
index ac6f5bf6a..c547479ad 100644
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -28,23 +28,35 @@
 #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
 
-#include "macro.h"
-
 #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
@@ -57,6 +69,24 @@
 #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 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
@@ -85,76 +115,78 @@
 #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
 
-#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
+#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
-#  elif _MIPS_SIM == _MIPS_SIM_ABI64
-#    ifndef __NR_fanotify_init
-#      define __NR_fanotify_init 5295
+#    if _MIPS_SIM == _MIPS_SIM_NABI32
+#      define __NR_memfd_create 6318
 #    endif
-#    ifndef __NR_fanotify_mark
-#      define __NR_fanotify_mark 5296
+#    if _MIPS_SIM == _MIPS_SIM_ABI64
+#      define __NR_memfd_create 5314
 #    endif
-#  endif
-#else
-#  ifndef __NR_fanotify_init
-#    define __NR_fanotify_init 338
-#  endif
-#  ifndef __NR_fanotify_mark
-#    define __NR_fanotify_mark 339
+#  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_FANOTIFY_INIT
-static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
-        return syscall(__NR_fanotify_init, flags, event_f_flags);
+#ifndef HAVE_MEMFD_CREATE
+static inline int memfd_create(const char *name, unsigned int flags) {
+        return syscall(__NR_memfd_create, name, 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);
+#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
@@ -199,7 +231,8 @@ struct btrfs_ioctl_fs_info_args {
 #endif
 
 #ifndef BTRFS_IOC_DEFRAG
-#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
+                                 struct btrfs_ioctl_vol_args)
 #endif
 
 #ifndef BTRFS_IOC_DEV_INFO
@@ -209,7 +242,12 @@ struct btrfs_ioctl_fs_info_args {
 
 #ifndef BTRFS_IOC_FS_INFO
 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
-                               struct btrfs_ioctl_fs_info_args)
+                                 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_SUPER_MAGIC
@@ -258,25 +296,17 @@ static inline pid_t gettid(void) {
 #define MAX_HANDLE_SZ 128
 #endif
 
-#if defined __x86_64__
-#  ifndef __NR_name_to_handle_at
+#ifndef __NR_name_to_handle_at
+#  if defined(__x86_64__)
 #    define __NR_name_to_handle_at 303
-#  endif
-#elif defined __i386__
-#  ifndef __NR_name_to_handle_at
+#  elif defined(__i386__)
 #    define __NR_name_to_handle_at 341
-#  endif
-#elif defined __arm__
-#  ifndef __NR_name_to_handle_at
+#  elif defined(__arm__)
 #    define __NR_name_to_handle_at 370
-#  endif
-#elif defined __powerpc__
-#  ifndef __NR_name_to_handle_at
+#  elif defined(__powerpc__)
 #    define __NR_name_to_handle_at 345
-#  endif
-#else
-#  ifndef __NR_name_to_handle_at
-#    error __NR_name_to_handle_at is not defined
+#  else
+#    error "__NR_name_to_handle_at is not defined"
 #  endif
 #endif
 
@@ -296,7 +326,7 @@ static inline int name_to_handle_at(int fd, const char *name, struct file_handle
 #  ifdef HAVE___SECURE_GETENV
 #    define secure_getenv __secure_getenv
 #  else
-#    error neither secure_getenv nor __secure_getenv are available
+#    error "neither secure_getenv nor __secure_getenv are available"
 #  endif
 #endif
 
@@ -339,3 +369,269 @@ static inline int name_to_handle_at(int fd, const char *name, struct file_handle
 #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