machinectl/machined: implement "rename", "clone", "read-only" verbs for machine images

[elogind.git] / src / shared / missing.h

diff --git a/src/shared/missing.h b/src/shared/missing.h
index 8c6698cff1f22fcf6d451b3a2daf9cb833c024d2..08cf83647d4e520b43db8877a823558903f20bcb 100644 (file)
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -34,17 +34,22 @@
 #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
@@ -135,8 +140,11 @@ static inline int pivot_root(const char *new_root, const char *put_old) {
 #    if _MIPS_SIM == _MIPS_SIM_ABI64
 #      define __NR_memfd_create 5314
 #    endif
-#  else
+#  elif defined __i386__
 #    define __NR_memfd_create 356
+#  else
+#    warning "__NR_memfd_create unknown for your architecture"
+#    define __NR_memfd_create 0xffffffff
 #  endif
 #endif
 
@@ -242,6 +250,14 @@ struct btrfs_ioctl_fs_info_args {
                                  struct btrfs_ioctl_vol_args)
 #endif
 
+#ifndef BTRFS_FIRST_FREE_OBJECTID
+#define BTRFS_FIRST_FREE_OBJECTID 256
+#endif
+
+#ifndef BTRFS_ROOT_ITEM_KEY
+#define BTRFS_ROOT_ITEM_KEY 132
+#endif
+
 #ifndef BTRFS_SUPER_MAGIC
 #define BTRFS_SUPER_MAGIC 0x9123683E
 #endif
@@ -519,6 +535,22 @@ static inline int setns(int fd, int nstype) {
 #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
@@ -547,6 +579,10 @@ static inline int setns(int fd, int nstype) {
 #  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
@@ -583,3 +619,51 @@ static inline int setns(int fd, int nstype) {
 #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
+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