/* SPDX-License-Identifier: GPL-2.0 */ /* * procfs namespace bits */ #ifndef _LINUX_PROC_NS_H #define _LINUX_PROC_NS_H #include #include struct pid_namespace; struct nsset; struct path; struct task_struct; struct inode; struct proc_ns_operations { const char *name; const char *real_ns_name; struct ns_common *(*get)(struct task_struct *task); void (*put)(struct ns_common *ns); int (*install)(struct nsset *nsset, struct ns_common *ns); struct user_namespace *(*owner)(struct ns_common *ns); struct ns_common *(*get_parent)(struct ns_common *ns); } __randomize_layout; extern const struct proc_ns_operations netns_operations; extern const struct proc_ns_operations utsns_operations; extern const struct proc_ns_operations ipcns_operations; extern const struct proc_ns_operations pidns_operations; extern const struct proc_ns_operations pidns_for_children_operations; extern const struct proc_ns_operations userns_operations; extern const struct proc_ns_operations mntns_operations; extern const struct proc_ns_operations cgroupns_operations; extern const struct proc_ns_operations timens_operations; extern const struct proc_ns_operations timens_for_children_operations; /* * We always define these enumerators */ enum { PROC_IPC_INIT_INO = IPC_NS_INIT_INO, PROC_UTS_INIT_INO = UTS_NS_INIT_INO, PROC_USER_INIT_INO = USER_NS_INIT_INO, PROC_PID_INIT_INO = PID_NS_INIT_INO, PROC_CGROUP_INIT_INO = CGROUP_NS_INIT_INO, PROC_TIME_INIT_INO = TIME_NS_INIT_INO, PROC_NET_INIT_INO = NET_NS_INIT_INO, PROC_MNT_INIT_INO = MNT_NS_INIT_INO, }; #ifdef CONFIG_PROC_FS extern int proc_alloc_inum(unsigned int *pino); extern void proc_free_inum(unsigned int inum); #else /* CONFIG_PROC_FS */ static inline int proc_alloc_inum(unsigned int *inum) { *inum = 1; return 0; } static inline void proc_free_inum(unsigned int inum) {} #endif /* CONFIG_PROC_FS */ #define get_proc_ns(inode) ((struct ns_common *)(inode)->i_private) #endif /* _LINUX_PROC_NS_H */