~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/proc_fs.h

Version: ~ [ linux-5.16-rc3 ] ~ [ linux-5.15.5 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.82 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.162 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.218 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.256 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.291 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.293 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 /*
  3  * The proc filesystem constants/structures
  4  */
  5 #ifndef _LINUX_PROC_FS_H
  6 #define _LINUX_PROC_FS_H
  7 
  8 #include <linux/types.h>
  9 #include <linux/fs.h>
 10 
 11 struct proc_dir_entry;
 12 struct seq_file;
 13 struct seq_operations;
 14 
 15 struct proc_ops {
 16         int     (*proc_open)(struct inode *, struct file *);
 17         ssize_t (*proc_read)(struct file *, char __user *, size_t, loff_t *);
 18         ssize_t (*proc_write)(struct file *, const char __user *, size_t, loff_t *);
 19         loff_t  (*proc_lseek)(struct file *, loff_t, int);
 20         int     (*proc_release)(struct inode *, struct file *);
 21         __poll_t (*proc_poll)(struct file *, struct poll_table_struct *);
 22         long    (*proc_ioctl)(struct file *, unsigned int, unsigned long);
 23 #ifdef CONFIG_COMPAT
 24         long    (*proc_compat_ioctl)(struct file *, unsigned int, unsigned long);
 25 #endif
 26         int     (*proc_mmap)(struct file *, struct vm_area_struct *);
 27         unsigned long (*proc_get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 28 };
 29 
 30 #ifdef CONFIG_PROC_FS
 31 
 32 typedef int (*proc_write_t)(struct file *, char *, size_t);
 33 
 34 extern void proc_root_init(void);
 35 extern void proc_flush_task(struct task_struct *);
 36 
 37 extern struct proc_dir_entry *proc_symlink(const char *,
 38                 struct proc_dir_entry *, const char *);
 39 extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
 40 extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
 41                                               struct proc_dir_entry *, void *);
 42 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
 43                                               struct proc_dir_entry *);
 44 struct proc_dir_entry *proc_create_mount_point(const char *name);
 45 
 46 struct proc_dir_entry *proc_create_seq_private(const char *name, umode_t mode,
 47                 struct proc_dir_entry *parent, const struct seq_operations *ops,
 48                 unsigned int state_size, void *data);
 49 #define proc_create_seq_data(name, mode, parent, ops, data) \
 50         proc_create_seq_private(name, mode, parent, ops, 0, data)
 51 #define proc_create_seq(name, mode, parent, ops) \
 52         proc_create_seq_private(name, mode, parent, ops, 0, NULL)
 53 struct proc_dir_entry *proc_create_single_data(const char *name, umode_t mode,
 54                 struct proc_dir_entry *parent,
 55                 int (*show)(struct seq_file *, void *), void *data);
 56 #define proc_create_single(name, mode, parent, show) \
 57         proc_create_single_data(name, mode, parent, show, NULL)
 58  
 59 extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
 60                                                struct proc_dir_entry *,
 61                                                const struct proc_ops *,
 62                                                void *);
 63 
 64 struct proc_dir_entry *proc_create(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct proc_ops *proc_ops);
 65 extern void proc_set_size(struct proc_dir_entry *, loff_t);
 66 extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
 67 extern void *PDE_DATA(const struct inode *);
 68 extern void *proc_get_parent_data(const struct inode *);
 69 extern void proc_remove(struct proc_dir_entry *);
 70 extern void remove_proc_entry(const char *, struct proc_dir_entry *);
 71 extern int remove_proc_subtree(const char *, struct proc_dir_entry *);
 72 
 73 struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
 74                 struct proc_dir_entry *parent, const struct seq_operations *ops,
 75                 unsigned int state_size, void *data);
 76 #define proc_create_net(name, mode, parent, ops, state_size) \
 77         proc_create_net_data(name, mode, parent, ops, state_size, NULL)
 78 struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode,
 79                 struct proc_dir_entry *parent,
 80                 int (*show)(struct seq_file *, void *), void *data);
 81 struct proc_dir_entry *proc_create_net_data_write(const char *name, umode_t mode,
 82                                                   struct proc_dir_entry *parent,
 83                                                   const struct seq_operations *ops,
 84                                                   proc_write_t write,
 85                                                   unsigned int state_size, void *data);
 86 struct proc_dir_entry *proc_create_net_single_write(const char *name, umode_t mode,
 87                                                     struct proc_dir_entry *parent,
 88                                                     int (*show)(struct seq_file *, void *),
 89                                                     proc_write_t write,
 90                                                     void *data);
 91 extern struct pid *tgid_pidfd_to_pid(const struct file *file);
 92 
 93 #ifdef CONFIG_PROC_PID_ARCH_STATUS
 94 /*
 95  * The architecture which selects CONFIG_PROC_PID_ARCH_STATUS must
 96  * provide proc_pid_arch_status() definition.
 97  */
 98 int proc_pid_arch_status(struct seq_file *m, struct pid_namespace *ns,
 99                         struct pid *pid, struct task_struct *task);
100 #endif /* CONFIG_PROC_PID_ARCH_STATUS */
101 
102 #else /* CONFIG_PROC_FS */
103 
104 static inline void proc_root_init(void)
105 {
106 }
107 
108 static inline void proc_flush_task(struct task_struct *task)
109 {
110 }
111 
112 static inline struct proc_dir_entry *proc_symlink(const char *name,
113                 struct proc_dir_entry *parent,const char *dest) { return NULL;}
114 static inline struct proc_dir_entry *proc_mkdir(const char *name,
115         struct proc_dir_entry *parent) {return NULL;}
116 static inline struct proc_dir_entry *proc_create_mount_point(const char *name) { return NULL; }
117 static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
118         umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
119 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
120         umode_t mode, struct proc_dir_entry *parent) { return NULL; }
121 #define proc_create_seq_private(name, mode, parent, ops, size, data) ({NULL;})
122 #define proc_create_seq_data(name, mode, parent, ops, data) ({NULL;})
123 #define proc_create_seq(name, mode, parent, ops) ({NULL;})
124 #define proc_create_single(name, mode, parent, show) ({NULL;})
125 #define proc_create_single_data(name, mode, parent, show, data) ({NULL;})
126 #define proc_create(name, mode, parent, proc_ops) ({NULL;})
127 #define proc_create_data(name, mode, parent, proc_ops, data) ({NULL;})
128 
129 static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
130 static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {}
131 static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;}
132 static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; }
133 
134 static inline void proc_remove(struct proc_dir_entry *de) {}
135 #define remove_proc_entry(name, parent) do {} while (0)
136 static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
137 
138 #define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;})
139 #define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
140 #define proc_create_net_single(name, mode, parent, show, data) ({NULL;})
141 
142 static inline struct pid *tgid_pidfd_to_pid(const struct file *file)
143 {
144         return ERR_PTR(-EBADF);
145 }
146 
147 #endif /* CONFIG_PROC_FS */
148 
149 struct net;
150 
151 static inline struct proc_dir_entry *proc_net_mkdir(
152         struct net *net, const char *name, struct proc_dir_entry *parent)
153 {
154         return proc_mkdir_data(name, 0, parent, net);
155 }
156 
157 struct ns_common;
158 int open_related_ns(struct ns_common *ns,
159                    struct ns_common *(*get_ns)(struct ns_common *ns));
160 
161 /* get the associated pid namespace for a file in procfs */
162 static inline struct pid_namespace *proc_pid_ns(const struct inode *inode)
163 {
164         return inode->i_sb->s_fs_info;
165 }
166 
167 #endif /* _LINUX_PROC_FS_H */
168 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp