#include <linux/spinlock.h>
#include <linux/magic.h>
#include <linux/atomic.h>
+#include <linux/proc_ns.h>
struct net;
struct completion;
/* Worst case buffer size needed for holding an integer. */
#define PROC_NUMBUF 13
-/*
- * 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,
-};
-
/*
* This is not completely implemented yet. The idea is to
* create an in-memory tree (like the actual /proc filesystem
* non-directory entries).
*/
-typedef int (read_proc_t)(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-typedef int (write_proc_t)(struct file *file, const char __user *buffer,
- unsigned long count, void *data);
-
struct proc_dir_entry {
unsigned int low_ino;
umode_t mode;
kgid_t gid;
loff_t size;
const struct inode_operations *proc_iops;
- /*
- * NULL ->proc_fops means "PDE is going away RSN" or
- * "PDE is just created". In either case, e.g. ->read_proc won't be
- * called because it's too late or too early, respectively.
- *
- * If you're allocating ->proc_fops dynamically, save a pointer
- * somewhere.
- */
const struct file_operations *proc_fops;
struct proc_dir_entry *next, *parent, *subdir;
void *data;
- read_proc_t *read_proc;
- write_proc_t *write_proc;
atomic_t count; /* use count */
- int pde_users; /* number of callers into module in progress */
+ atomic_t in_use; /* number of callers into module in progress; */
+ /* negative -> it's going away RSN */
struct completion *pde_unload_completion;
struct list_head pde_openers; /* who did ->open, but not ->release */
spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
char name[];
};
-enum kcore_type {
- KCORE_TEXT,
- KCORE_VMALLOC,
- KCORE_RAM,
- KCORE_VMEMMAP,
- KCORE_OTHER,
-};
-
-struct kcore_list {
- struct list_head list;
- unsigned long addr;
- size_t size;
- int type;
-};
-
-struct vmcore {
- struct list_head list;
- unsigned long long paddr;
- unsigned long long size;
- loff_t offset;
-};
-
#ifdef CONFIG_PROC_FS
extern void proc_root_init(void);
void proc_flush_task(struct task_struct *task);
-extern struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode,
- struct proc_dir_entry *parent);
struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
struct proc_dir_entry *parent,
const struct file_operations *proc_fops,
void *data);
extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
+extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent);
-struct pid_namespace;
-
-extern int pid_ns_prepare_proc(struct pid_namespace *ns);
-extern void pid_ns_release_proc(struct pid_namespace *ns);
/*
* proc_tty.c
{
return proc_create_data(name, mode, parent, proc_fops, NULL);
}
-
-static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
- umode_t mode, struct proc_dir_entry *base,
- read_proc_t *read_proc, void * data)
-{
- struct proc_dir_entry *res=create_proc_entry(name,mode,base);
- if (res) {
- res->read_proc=read_proc;
- res->data=data;
- }
- return res;
-}
extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
struct proc_dir_entry *parent);
-extern struct file *proc_ns_fget(int fd);
-extern bool proc_ns_inode(struct inode *inode);
-
-extern int proc_alloc_inum(unsigned int *pino);
-extern void proc_free_inum(unsigned int inum);
+extern void proc_set_size(struct proc_dir_entry *, loff_t);
+extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
#else
static inline void proc_flush_task(struct task_struct *task)
{
}
-static inline struct proc_dir_entry *create_proc_entry(const char *name,
- umode_t mode, struct proc_dir_entry *parent) { return NULL; }
-
#define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; })
static inline struct proc_dir_entry *proc_create_data(const char *name,
return NULL;
}
#define remove_proc_entry(name, parent) do {} while (0)
+#define remove_proc_subtree(name, parent) do {} while (0)
static inline struct proc_dir_entry *proc_symlink(const char *name,
struct proc_dir_entry *parent,const char *dest) {return NULL;}
struct proc_dir_entry *parent) {return NULL;}
static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
umode_t mode, struct proc_dir_entry *parent) { return NULL; }
-
-static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
- umode_t mode, struct proc_dir_entry *base,
- read_proc_t *read_proc, void * data) { return NULL; }
+static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
+static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {}
struct tty_driver;
static inline void proc_tty_register_driver(struct tty_driver *driver) {};
static inline void proc_tty_unregister_driver(struct tty_driver *driver) {};
-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 bool proc_ns_inode(struct inode *inode)
-{
- return false;
-}
-
-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 */
-#if !defined(CONFIG_PROC_KCORE)
-static inline void
-kclist_add(struct kcore_list *new, void *addr, size_t size, int type)
-{
-}
-#else
-extern void kclist_add(struct kcore_list *, void *, size_t, int type);
-#endif
-
-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);
-};
-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;
union proc_op {
int (*proc_get_link)(struct dentry *, struct path *);
struct proc_dir_entry *pde;
struct ctl_table_header *sysctl;
struct ctl_table *sysctl_entry;
- void *ns;
- const struct proc_ns_operations *ns_ops;
+ struct proc_ns ns;
struct inode vfs_inode;
};
return PROC_I(inode)->pde;
}
+static inline void *PDE_DATA(const struct inode *inode)
+{
+ return PROC_I(inode)->pde->data;
+}
+
static inline struct net *PDE_NET(struct proc_dir_entry *pde)
{
return pde->parent->data;
projects / linux-2.6-block.git / blobdiff