diff options
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/fs.h | 11 | ||||
| -rw-r--r-- | include/uapi/linux/nsfs.h | 11 |
2 files changed, 22 insertions, 0 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 0098b0ce8ccb..28238a3edbc1 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -60,6 +60,17 @@ #define RENAME_EXCHANGE (1 << 1) /* Exchange source and dest */ #define RENAME_WHITEOUT (1 << 2) /* Whiteout source */ +/* + * The root inode of procfs is guaranteed to always have the same inode number. + * For programs that make heavy use of procfs, verifying that the root is a + * real procfs root and using openat2(RESOLVE_{NO_{XDEV,MAGICLINKS},BENEATH}) + * will allow you to make sure you are never tricked into operating on the + * wrong procfs file. + */ +enum procfs_ino { + PROCFS_ROOT_INO = 1, +}; + struct file_clone_range { __s64 src_fd; __u64 src_offset; diff --git a/include/uapi/linux/nsfs.h b/include/uapi/linux/nsfs.h index 34127653fd00..97d8d80d139f 100644 --- a/include/uapi/linux/nsfs.h +++ b/include/uapi/linux/nsfs.h @@ -42,4 +42,15 @@ struct mnt_ns_info { /* Get previous namespace. */ #define NS_MNT_GET_PREV _IOR(NSIO, 12, struct mnt_ns_info) +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, +}; + #endif /* __LINUX_NSFS_H */ |