security: pass mount flags to security_sb_kern_mount()
Pass mount flags to security_sb_kern_mount(), so security modules
can determine if a mount operation is being performed by the kernel.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/fs/super.c b/fs/super.c
index 400a760..ddba069 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -914,7 +914,7 @@
goto out_free_secdata;
BUG_ON(!mnt->mnt_sb);
- error = security_sb_kern_mount(mnt->mnt_sb, secdata);
+ error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
if (error)
goto out_sb;
diff --git a/include/linux/security.h b/include/linux/security.h
index 6423abf..3416cb8 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1308,7 +1308,7 @@
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_kern_mount) (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);
int (*sb_mount) (char *dev_name, struct path *path,
@@ -1575,7 +1575,7 @@
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_kern_mount(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);
int security_sb_mount(char *dev_name, struct path *path,
@@ -1850,7 +1850,7 @@
return 0;
}
-static inline int security_sb_kern_mount(struct super_block *sb, void *data)
+static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return 0;
}
diff --git a/security/capability.c b/security/capability.c
index b9e3914..2dce66f 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -59,7 +59,7 @@
return 0;
}
-static int cap_sb_kern_mount(struct super_block *sb, void *data)
+static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return 0;
}
diff --git a/security/security.c b/security/security.c
index f0d96a6..d85dbb3 100644
--- a/security/security.c
+++ b/security/security.c
@@ -254,9 +254,9 @@
}
EXPORT_SYMBOL(security_sb_copy_data);
-int security_sb_kern_mount(struct super_block *sb, void *data)
+int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
- return security_ops->sb_kern_mount(sb, data);
+ return security_ops->sb_kern_mount(sb, flags, data);
}
int security_sb_show_options(struct seq_file *m, struct super_block *sb)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 8dbc54c..7465d71 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2474,7 +2474,7 @@
return rc;
}
-static int selinux_sb_kern_mount(struct super_block *sb, void *data)
+static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
const struct cred *cred = current_cred();
struct avc_audit_data ad;
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 8ad4816..1b5551d 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -250,11 +250,12 @@
/**
* smack_sb_kern_mount - Smack specific mount processing
* @sb: the file system superblock
+ * @flags: the mount flags
* @data: the smack mount options
*
* Returns 0 on success, an error code on failure
*/
-static int smack_sb_kern_mount(struct super_block *sb, void *data)
+static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
struct dentry *root = sb->s_root;
struct inode *inode = root->d_inode;