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Diffstat (limited to 'include/linux/proc_fs.h')
-rw-r--r--include/linux/proc_fs.h32
1 files changed, 30 insertions, 2 deletions
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index ad4ff711fc02..d1eed1b43651 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -42,6 +42,34 @@ struct proc_ops {
unsigned long (*proc_get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
} __randomize_layout;
+/* definitions for hide_pid field */
+enum proc_hidepid {
+ HIDEPID_OFF = 0,
+ HIDEPID_NO_ACCESS = 1,
+ HIDEPID_INVISIBLE = 2,
+ HIDEPID_NOT_PTRACEABLE = 4, /* Limit pids to only ptraceable pids */
+};
+
+/* definitions for proc mount option pidonly */
+enum proc_pidonly {
+ PROC_PIDONLY_OFF = 0,
+ PROC_PIDONLY_ON = 1,
+};
+
+struct proc_fs_info {
+ struct pid_namespace *pid_ns;
+ struct dentry *proc_self; /* For /proc/self */
+ struct dentry *proc_thread_self; /* For /proc/thread-self */
+ kgid_t pid_gid;
+ enum proc_hidepid hide_pid;
+ enum proc_pidonly pidonly;
+};
+
+static inline struct proc_fs_info *proc_sb_info(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
#ifdef CONFIG_PROC_FS
typedef int (*proc_write_t)(struct file *, char *, size_t);
@@ -177,9 +205,9 @@ int open_related_ns(struct ns_common *ns,
struct ns_common *(*get_ns)(struct ns_common *ns));
/* get the associated pid namespace for a file in procfs */
-static inline struct pid_namespace *proc_pid_ns(const struct inode *inode)
+static inline struct pid_namespace *proc_pid_ns(struct super_block *sb)
{
- return inode->i_sb->s_fs_info;
+ return proc_sb_info(sb)->pid_ns;
}
bool proc_ns_file(const struct file *file);