150 lines
4.8 KiB
C
Executable File
150 lines
4.8 KiB
C
Executable File
/*
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* The proc filesystem constants/structures
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*/
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#ifndef _LINUX_PROC_FS_H
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#define _LINUX_PROC_FS_H
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#include <linux/types.h>
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#include <linux/fs.h>
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#include <linux/proc_ns.h>
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#if 1
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typedef int (read_proc_t)(char *page, char **start, off_t off,
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int count, int *eof, void *data);
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typedef int (write_proc_t)(struct file *file, const char __user *buffer,
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unsigned long count, void *data);
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struct proc_dir_entry {
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unsigned int low_ino;
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umode_t mode;
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nlink_t nlink;
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kuid_t uid;
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kgid_t gid;
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loff_t size;
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const struct inode_operations *proc_iops;
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const struct file_operations *proc_fops;
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struct proc_dir_entry *next, *parent, *subdir;
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void *data;
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read_proc_t *read_proc;
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write_proc_t *write_proc;
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int pde_users;
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atomic_t count; /* use count */
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atomic_t in_use; /* number of callers into module in progress; */
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/* negative -> it's going away RSN */
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struct completion *pde_unload_completion;
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struct list_head pde_openers; /* who did ->open, but not ->release */
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spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
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u8 namelen;
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char name[];
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};
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union proc_op {
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int (*proc_get_link)(struct dentry *, struct path *);
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int (*proc_read)(struct task_struct *task, char *page);
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int (*proc_show)(struct seq_file *m,
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struct pid_namespace *ns, struct pid *pid,
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struct task_struct *task);
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};
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struct proc_inode {
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struct pid *pid;
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int fd;
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union proc_op op;
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struct proc_dir_entry *pde;
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struct ctl_table_header *sysctl;
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struct ctl_table *sysctl_entry;
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struct proc_ns ns;
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struct inode vfs_inode;
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};
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#endif
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struct proc_dir_entry;
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#ifdef CONFIG_PROC_FS
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extern void proc_root_init(void);
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extern void proc_flush_task(struct task_struct *);
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extern struct proc_dir_entry *proc_symlink(const char *,
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struct proc_dir_entry *, const char *);
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extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
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extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
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struct proc_dir_entry *, void *);
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extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
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struct proc_dir_entry *);
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extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
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struct proc_dir_entry *,
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const struct file_operations *,
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void *);
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extern struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
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struct proc_dir_entry *parent);
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static inline struct proc_dir_entry *proc_create(
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const char *name, umode_t mode, struct proc_dir_entry *parent,
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const struct file_operations *proc_fops)
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{
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return proc_create_data(name, mode, parent, proc_fops, NULL);
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}
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static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
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mode_t mode, struct proc_dir_entry *base,
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read_proc_t *read_proc, void * data)
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{
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struct proc_dir_entry *res=create_proc_entry(name,mode,base);
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if (res) {
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res->read_proc=read_proc;
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res->data=data;
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}
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return res;
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}
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extern void proc_set_size(struct proc_dir_entry *, loff_t);
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extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
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extern void *PDE_DATA(const struct inode *);
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extern void *proc_get_parent_data(const struct inode *);
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extern void proc_remove(struct proc_dir_entry *);
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extern void remove_proc_entry(const char *, struct proc_dir_entry *);
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extern int remove_proc_subtree(const char *, struct proc_dir_entry *);
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#else /* CONFIG_PROC_FS */
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static inline void proc_root_init(void)
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{
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}
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static inline void proc_flush_task(struct task_struct *task)
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{
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}
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static inline struct proc_dir_entry *proc_symlink(const char *name,
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struct proc_dir_entry *parent,const char *dest) { return NULL;}
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static inline struct proc_dir_entry *proc_mkdir(const char *name,
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struct proc_dir_entry *parent) {return NULL;}
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static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
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umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
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static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
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umode_t mode, struct proc_dir_entry *parent) { return NULL; }
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#define proc_create(name, mode, parent, proc_fops) ({NULL;})
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#define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;})
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static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
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static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {}
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static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;}
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static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; }
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static inline void proc_remove(struct proc_dir_entry *de) {}
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#define remove_proc_entry(name, parent) do {} while (0)
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static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
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#endif /* CONFIG_PROC_FS */
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struct net;
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static inline struct proc_dir_entry *proc_net_mkdir(
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struct net *net, const char *name, struct proc_dir_entry *parent)
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{
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return proc_mkdir_data(name, 0, parent, net);
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}
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#endif /* _LINUX_PROC_FS_H */
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