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-rw-r--r--include/linux/security.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h
index 14167f2eb35a..d11ac43ecc49 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -268,6 +268,12 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
* @orig the original mount data copied from userspace.
* @copy copied data which will be passed to the security module.
* Returns 0 if the copy was successful.
+ * @sb_remount:
+ * Extracts security system specifc mount options and verifys no changes
+ * are being made to those options.
+ * @sb superblock being remounted
+ * @data contains the filesystem-specific data.
+ * Return 0 if permission is granted.
* @sb_umount:
* Check permission before the @mnt file system is unmounted.
* @mnt contains the mounted file system.
@@ -1394,6 +1400,7 @@ struct security_operations {
int (*sb_alloc_security) (struct super_block *sb);
void (*sb_free_security) (struct super_block *sb);
int (*sb_copy_data) (char *orig, char *copy);
+ int (*sb_remount) (struct super_block *sb, void *data);
int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
int (*sb_statfs) (struct dentry *dentry);
@@ -1676,6 +1683,7 @@ int security_bprm_secureexec(struct linux_binprm *bprm);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
int security_sb_copy_data(char *orig, char *copy);
+int security_sb_remount(struct super_block *sb, void *data);
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
@@ -1955,6 +1963,11 @@ static inline int security_sb_copy_data(char *orig, char *copy)
return 0;
}
+static inline int security_sb_remount(struct super_block *sb, void *data)
+{
+ return 0;
+}
+
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return 0;