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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef __LINUX_NSFS_H#define __LINUX_NSFS_H
#include <linux/ioctl.h>#include <linux/types.h>
#define NSIO 0xb7
/* Returns a file descriptor that refers to an owning user namespace */#define NS_GET_USERNS _IO(NSIO, 0x1)/* Returns a file descriptor that refers to a parent namespace */#define NS_GET_PARENT _IO(NSIO, 0x2)/* Returns the type of namespace (CLONE_NEW* value) referred to by file descriptor */#define NS_GET_NSTYPE _IO(NSIO, 0x3)/* Get owner UID (in the caller's user namespace) for a user namespace */#define NS_GET_OWNER_UID _IO(NSIO, 0x4)/* Translate pid from target pid namespace into the caller's pid namespace. */#define NS_GET_PID_FROM_PIDNS _IOR(NSIO, 0x6, int)/* Return thread-group leader id of pid in the callers pid namespace. */#define NS_GET_TGID_FROM_PIDNS _IOR(NSIO, 0x7, int)/* Translate pid from caller's pid namespace into a target pid namespace. */#define NS_GET_PID_IN_PIDNS _IOR(NSIO, 0x8, int)/* Return thread-group leader id of pid in the target pid namespace. */#define NS_GET_TGID_IN_PIDNS _IOR(NSIO, 0x9, int)
struct mnt_ns_info { __u32 size; __u32 nr_mounts; __u64 mnt_ns_id;};
#define MNT_NS_INFO_SIZE_VER0 16 /* size of first published struct */
/* Get information about namespace. */#define NS_MNT_GET_INFO _IOR(NSIO, 10, struct mnt_ns_info)/* Get next namespace. */#define NS_MNT_GET_NEXT _IOR(NSIO, 11, struct mnt_ns_info)/* Get previous namespace. */#define NS_MNT_GET_PREV _IOR(NSIO, 12, struct mnt_ns_info)
/* Retrieve namespace identifiers. */#define NS_GET_MNTNS_ID _IOR(NSIO, 5, __u64)#define NS_GET_ID _IOR(NSIO, 13, __u64)
enum init_ns_ino { IPC_NS_INIT_INO = 0xEFFFFFFFU, UTS_NS_INIT_INO = 0xEFFFFFFEU, USER_NS_INIT_INO = 0xEFFFFFFDU, PID_NS_INIT_INO = 0xEFFFFFFCU, CGROUP_NS_INIT_INO = 0xEFFFFFFBU, TIME_NS_INIT_INO = 0xEFFFFFFAU, NET_NS_INIT_INO = 0xEFFFFFF9U, MNT_NS_INIT_INO = 0xEFFFFFF8U,#ifdef __KERNEL__ MNT_NS_ANON_INO = 0xEFFFFFF7U,#endif};
struct nsfs_file_handle { __u64 ns_id; __u32 ns_type; __u32 ns_inum;};
#define NSFS_FILE_HANDLE_SIZE_VER0 16 /* sizeof first published struct */#define NSFS_FILE_HANDLE_SIZE_LATEST sizeof(struct nsfs_file_handle) /* sizeof latest published struct */
enum init_ns_id { IPC_NS_INIT_ID = 1ULL, UTS_NS_INIT_ID = 2ULL, USER_NS_INIT_ID = 3ULL, PID_NS_INIT_ID = 4ULL, CGROUP_NS_INIT_ID = 5ULL, TIME_NS_INIT_ID = 6ULL, NET_NS_INIT_ID = 7ULL, MNT_NS_INIT_ID = 8ULL,#ifdef __KERNEL__ NS_LAST_INIT_ID = MNT_NS_INIT_ID,#endif};
enum ns_type { TIME_NS = (1ULL << 7), /* CLONE_NEWTIME */ MNT_NS = (1ULL << 17), /* CLONE_NEWNS */ CGROUP_NS = (1ULL << 25), /* CLONE_NEWCGROUP */ UTS_NS = (1ULL << 26), /* CLONE_NEWUTS */ IPC_NS = (1ULL << 27), /* CLONE_NEWIPC */ USER_NS = (1ULL << 28), /* CLONE_NEWUSER */ PID_NS = (1ULL << 29), /* CLONE_NEWPID */ NET_NS = (1ULL << 30), /* CLONE_NEWNET */};
/** * struct ns_id_req - namespace ID request structure * @size: size of this structure * @spare: reserved for future use * @filter: filter mask * @ns_id: last namespace id * @user_ns_id: owning user namespace ID * * Structure for passing namespace ID and miscellaneous parameters to * statns(2) and listns(2). * * For statns(2) @param represents the request mask. * For listns(2) @param represents the last listed mount id (or zero). */struct ns_id_req { __u32 size; __u32 spare; __u64 ns_id; struct /* listns */ { __u32 ns_type; __u32 spare2; __u64 user_ns_id; };};
/* * Special @user_ns_id value that can be passed to listns() */#define LISTNS_CURRENT_USER 0xffffffffffffffff /* Caller's userns */
/* List of all ns_id_req versions. */#define NS_ID_REQ_SIZE_VER0 32 /* sizeof first published struct */
#endif /* __LINUX_NSFS_H */