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/* SPDX-License-Identifier: GPL-2.0 */
/*
* procfs namespace bits
*/
#ifndef _LINUX_PROC_NS_H
#define _LINUX_PROC_NS_H
#include <linux/nsfs.h>
#include <uapi/linux/nsfs.h>
struct pid_namespace;
struct nsset;
struct path;
struct task_struct;
struct inode;
struct proc_ns_operations {
const char *name;
const char *real_ns_name;
int type;
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 */
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