1 #ifndef __NAMESPACE_H__ 2 #define __NAMESPACE_H__ 1 3 4 #include <sched.h> 5 #include <sys/mount.h> 6 #include <unistd.h> 7 #include <sys/syscall.h> 8 #include <errno.h> 9 10 #define NETNS_RUN_DIR "/var/run/netns" 11 #define NETNS_ETC_DIR "/etc/netns" 12 13 #ifndef CLONE_NEWNET 14 #define CLONE_NEWNET 0x40000000 /* New network namespace (lo, device, names sockets, etc) */ 15 #endif 16 17 #ifndef MNT_DETACH 18 #define MNT_DETACH 0x00000002 /* Just detach from the tree */ 19 #endif /* MNT_DETACH */ 20 21 /* sys/mount.h may be out too old to have these */ 22 #ifndef MS_REC 23 #define MS_REC 16384 24 #endif 25 26 #ifndef MS_SLAVE 27 #define MS_SLAVE (1 << 19) 28 #endif 29 30 #ifndef MS_SHARED 31 #define MS_SHARED (1 << 20) 32 #endif 33 34 #ifndef HAVE_SETNS 35 static inline int setns(int fd, int nstype) 36 { 37 #ifdef __NR_setns 38 return syscall(__NR_setns, fd, nstype); 39 #else 40 errno = ENOSYS; 41 return -1; 42 #endif 43 } 44 #endif /* HAVE_SETNS */ 45 46 int netns_switch(char *netns); 47 int netns_get_fd(const char *netns); 48 int netns_foreach(int (*func)(char *nsname, void *arg), void *arg); 49 50 struct netns_func { 51 int (*func)(char *nsname, void *arg); 52 void *arg; 53 }; 54 55 #endif /* __NAMESPACE_H__ */ 56
