include/namespace.h

   1 #ifndef __NAMESPACE_H__
   2 #define __NAMESPACE_H__ 1
   3
   4 #include <sched.h>
   5 #include <sys/mount.h>
   6 #include <sys/syscall.h>
   7 #include <errno.h>
   8
   9 #define NETNS_RUN_DIR "/var/run/netns"
  10 #define NETNS_ETC_DIR "/etc/netns"
  11
  12 #ifndef CLONE_NEWNET
  13 #define CLONE_NEWNET 0x40000000 /* New network namespace (lo, device, names sockets, etc) */
  14 #endif
  15
  16 #ifndef MNT_DETACH
  17 #define MNT_DETACH      0x00000002      /* Just detach from the tree */
  18 #endif /* MNT_DETACH */
  19
  20 /* sys/mount.h may be out too old to have these */
  21 #ifndef MS_REC
  22 #define MS_REC          16384
  23 #endif
  24
  25 #ifndef MS_SLAVE
  26 #define MS_SLAVE        (1 << 19)
  27 #endif
  28
  29 #ifndef MS_SHARED
  30 #define MS_SHARED       (1 << 20)
  31 #endif
  32
  33 #ifndef HAVE_SETNS
  34 static inline int setns(int fd, int nstype)
  35 {
  36 #ifdef __NR_setns
  37         return syscall(__NR_setns, fd, nstype);
  38 #else
  39         errno = ENOSYS;
  40         return -1;
  41 #endif
  42 }
  43 #endif /* HAVE_SETNS */
  44
  45 extern int netns_switch(char *netns);
  46 extern int netns_get_fd(const char *netns);
  47
  48 #endif /* __NAMESPACE_H__ */