mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
0bb80f2405
Split the proc namespace stuff out into linux/proc_ns.h. Signed-off-by: David Howells <dhowells@redhat.com> cc: netdev@vger.kernel.org cc: Serge E. Hallyn <serge.hallyn@ubuntu.com> cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
|
|
* procfs namespace bits
|
|
*/
|
|
#ifndef _LINUX_PROC_NS_H
|
|
#define _LINUX_PROC_NS_H
|
|
|
|
struct pid_namespace;
|
|
struct nsproxy;
|
|
|
|
struct proc_ns_operations {
|
|
const char *name;
|
|
int type;
|
|
void *(*get)(struct task_struct *task);
|
|
void (*put)(void *ns);
|
|
int (*install)(struct nsproxy *nsproxy, void *ns);
|
|
unsigned int (*inum)(void *ns);
|
|
};
|
|
|
|
struct proc_ns {
|
|
void *ns;
|
|
const struct proc_ns_operations *ns_ops;
|
|
};
|
|
|
|
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 userns_operations;
|
|
extern const struct proc_ns_operations mntns_operations;
|
|
|
|
/*
|
|
* We always define these enumerators
|
|
*/
|
|
enum {
|
|
PROC_ROOT_INO = 1,
|
|
PROC_IPC_INIT_INO = 0xEFFFFFFFU,
|
|
PROC_UTS_INIT_INO = 0xEFFFFFFEU,
|
|
PROC_USER_INIT_INO = 0xEFFFFFFDU,
|
|
PROC_PID_INIT_INO = 0xEFFFFFFCU,
|
|
};
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
extern int pid_ns_prepare_proc(struct pid_namespace *ns);
|
|
extern void pid_ns_release_proc(struct pid_namespace *ns);
|
|
extern struct file *proc_ns_fget(int fd);
|
|
extern struct proc_ns *get_proc_ns(struct inode *);
|
|
extern int proc_alloc_inum(unsigned int *pino);
|
|
extern void proc_free_inum(unsigned int inum);
|
|
extern bool proc_ns_inode(struct inode *inode);
|
|
|
|
#else /* CONFIG_PROC_FS */
|
|
|
|
static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; }
|
|
static inline void pid_ns_release_proc(struct pid_namespace *ns) {}
|
|
|
|
static inline struct file *proc_ns_fget(int fd)
|
|
{
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
static inline struct proc_ns *get_proc_ns(struct inode *inode) { return NULL; }
|
|
|
|
static inline int proc_alloc_inum(unsigned int *inum)
|
|
{
|
|
*inum = 1;
|
|
return 0;
|
|
}
|
|
static inline void proc_free_inum(unsigned int inum) {}
|
|
static inline bool proc_ns_inode(struct inode *inode) { return false; }
|
|
|
|
#endif /* CONFIG_PROC_FS */
|
|
|
|
#endif /* _LINUX_PROC_NS_H */
|