include/namespace.h

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