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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NAMESPACE_H__
#define __NAMESPACE_H__ 1
#include <sched.h>
#include <sys/mount.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <errno.h>
#ifndef NETNS_RUN_DIR
#define NETNS_RUN_DIR "/var/run/netns"
#endif
#ifndef NETNS_ETC_DIR
#define NETNS_ETC_DIR "/etc/netns"
#endif
#ifndef CLONE_NEWNET
#define CLONE_NEWNET 0x40000000 /* New network namespace (lo, device, names sockets, etc) */
#endif
#ifndef MNT_DETACH
#define MNT_DETACH 0x00000002 /* Just detach from the tree */
#endif /* MNT_DETACH */
/* sys/mount.h may be out too old to have these */
#ifndef MS_REC
#define MS_REC 16384
#endif
#ifndef MS_SLAVE
#define MS_SLAVE (1 << 19)
#endif
#ifndef MS_SHARED
#define MS_SHARED (1 << 20)
#endif
#ifndef HAVE_SETNS
static inline int setns(int fd, int nstype)
{
#ifdef __NR_setns
return syscall(__NR_setns, fd, nstype);
#else
errno = ENOSYS;
return -1;
#endif
}
#endif /* HAVE_SETNS */
int netns_switch(char *netns);
int netns_get_fd(const char *netns);
int netns_foreach(int (*func)(char *nsname, void *arg), void *arg);
struct netns_func {
int (*func)(char *nsname, void *arg);
void *arg;
};
#endif /* __NAMESPACE_H__ */
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