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hc

2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/proc_ns.h
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@@ -8,7 +8,7 @@
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 #include <linux/ns_common.h>
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 struct pid_namespace;
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-struct nsproxy;
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+struct nsset;
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 struct path;
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 struct task_struct;
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 struct inode;
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@@ -19,7 +19,7 @@
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 	int type;
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 	struct ns_common *(*get)(struct task_struct *task);
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 	void (*put)(struct ns_common *ns);
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-	int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
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+	int (*install)(struct nsset *nsset, struct ns_common *ns);
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 	struct user_namespace *(*owner)(struct ns_common *ns);
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 	struct ns_common *(*get_parent)(struct ns_common *ns);
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 } __randomize_layout;
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@@ -32,6 +32,8 @@
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 extern const struct proc_ns_operations userns_operations;
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 extern const struct proc_ns_operations mntns_operations;
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 extern const struct proc_ns_operations cgroupns_operations;
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+extern const struct proc_ns_operations timens_operations;
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+extern const struct proc_ns_operations timens_for_children_operations;
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 /*
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  * We always define these enumerators
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@@ -43,19 +45,15 @@
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 	PROC_USER_INIT_INO	= 0xEFFFFFFDU,
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 	PROC_PID_INIT_INO	= 0xEFFFFFFCU,
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 	PROC_CGROUP_INIT_INO	= 0xEFFFFFFBU,
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+	PROC_TIME_INIT_INO	= 0xEFFFFFFAU,
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 };
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 #ifdef CONFIG_PROC_FS
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-extern int pid_ns_prepare_proc(struct pid_namespace *ns);
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-extern void pid_ns_release_proc(struct pid_namespace *ns);
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 extern int proc_alloc_inum(unsigned int *pino);
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 extern void proc_free_inum(unsigned int inum);
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 #else /* CONFIG_PROC_FS */
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-
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-static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; }
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-static inline void pid_ns_release_proc(struct pid_namespace *ns) {}
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 static inline int proc_alloc_inum(unsigned int *inum)
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 {
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@@ -76,12 +74,14 @@
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 extern struct file *proc_ns_fget(int fd);
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 #define get_proc_ns(inode) ((struct ns_common *)(inode)->i_private)
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-extern void *ns_get_path(struct path *path, struct task_struct *task,
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+extern int ns_get_path(struct path *path, struct task_struct *task,
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 			const struct proc_ns_operations *ns_ops);
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 typedef struct ns_common *ns_get_path_helper_t(void *);
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-extern void *ns_get_path_cb(struct path *path, ns_get_path_helper_t ns_get_cb,
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+extern int ns_get_path_cb(struct path *path, ns_get_path_helper_t ns_get_cb,
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 			    void *private_data);
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+extern bool ns_match(const struct ns_common *ns, dev_t dev, ino_t ino);
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+
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 extern int ns_get_name(char *buf, size_t size, struct task_struct *task,
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 			const struct proc_ns_operations *ns_ops);
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 extern void nsfs_init(void);