1 files changed, 20 insertions, 15 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index debbd97db7ab..83d9227abf02 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -25,6 +25,7 @@
 #include <linux/fs.h>
 #include <linux/fsnotify.h>
 #include <linux/binfmts.h>
+#include <linux/dcache.h>
 #include <linux/signal.h>
 #include <linux/resource.h>
 #include <linux/sem.h>
@@ -267,6 +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.
@@ -315,6 +322,7 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      then it should return -EOPNOTSUPP to skip this processing.
  *      @inode contains the inode structure of the newly created inode.
  *      @dir contains the inode structure of the parent directory.
+ *      @qstr contains the last path component of the new object
  *      @name will be set to the allocated name suffix (e.g. selinux).
  *      @value will be set to the allocated attribute value.
  *      @len will be set to the length of the value.
@@ -1257,12 +1265,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @cap contains the capability <include/linux/capability.h>.
  *      @audit: Whether to write an audit message or not
  *      Return 0 if the capability is granted for @tsk.
- * @sysctl:
- *      Check permission before accessing the @table sysctl variable in the
- *      manner specified by @op.
- *      @table contains the ctl_table structure for the sysctl variable.
- *      @op contains the operation (001 = search, 002 = write, 004 = read).
- *      Return 0 if permission is granted.
  * @syslog:
  *      Check permission before accessing the kernel message ring or changing
  *      logging to the console.
@@ -1383,7 +1385,6 @@ struct security_operations {
                        const kernel_cap_t *permitted);
         int (*capable) (struct task_struct *tsk, const struct cred *cred,
                         int cap, int audit);
-        int (*sysctl) (struct ctl_table *table, int op);
         int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
         int (*quota_on) (struct dentry *dentry);
         int (*syslog) (int type);
@@ -1399,6 +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);
@@ -1435,7 +1437,8 @@ struct security_operations {
         int (*inode_alloc_security) (struct inode *inode);
         void (*inode_free_security) (struct inode *inode);
         int (*inode_init_security) (struct inode *inode, struct inode *dir,
-                                    char **name, void **value, size_t *len);
+                                    const struct qstr *qstr, char **name,
+                                    void **value, size_t *len);
         int (*inode_create) (struct inode *dir,
                              struct dentry *dentry, int mode);
         int (*inode_link) (struct dentry *old_dentry,
@@ -1665,7 +1668,6 @@ int security_capset(struct cred *new, const struct cred *old,
 int security_capable(const struct cred *cred, int cap);
 int security_real_capable(struct task_struct *tsk, int cap);
 int security_real_capable_noaudit(struct task_struct *tsk, int cap);
-int security_sysctl(struct ctl_table *table, int op);
 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
 int security_quota_on(struct dentry *dentry);
 int security_syslog(int type);
@@ -1681,6 +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);
@@ -1696,7 +1699,8 @@ int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
 int security_inode_alloc(struct inode *inode);
 void security_inode_free(struct inode *inode);
 int security_inode_init_security(struct inode *inode, struct inode *dir,
-                                  char **name, void **value, size_t *len);
+                                 const struct qstr *qstr, char **name,
+                                 void **value, size_t *len);
 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
                          struct dentry *new_dentry);
@@ -1883,11 +1887,6 @@ int security_real_capable_noaudit(struct task_struct *tsk, int cap)
         return ret;
 }
 
-static inline int security_sysctl(struct ctl_table *table, int op)
-{
-        return 0;
-}
-
 static inline int security_quotactl(int cmds, int type, int id,
                                      struct super_block *sb)
 {
@@ -1965,6 +1964,11 @@ 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;
@@ -2024,6 +2028,7 @@ static inline void security_inode_free(struct inode *inode)
 
 static inline int security_inode_init_security(struct inode *inode,
                                                 struct inode *dir,
+                                                const struct qstr *qstr,
                                                 char **name,
                                                 void **value,
                                                 size_t *len)