[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/fs/ext2/xattr_security.c b/src/kernel/linux/v4.14/fs/ext2/xattr_security.c
new file mode 100644
index 0000000..9a682e4
--- /dev/null
+++ b/src/kernel/linux/v4.14/fs/ext2/xattr_security.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/fs/ext2/xattr_security.c
+ * Handler for storing security labels as extended attributes.
+ */
+
+#include "ext2.h"
+#include <linux/security.h>
+#include "xattr.h"
+
+static int
+ext2_xattr_security_get(const struct xattr_handler *handler,
+ struct dentry *unused, struct inode *inode,
+ const char *name, void *buffer, size_t size)
+{
+ return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
+ buffer, size);
+}
+
+static int
+ext2_xattr_security_set(const struct xattr_handler *handler,
+ struct dentry *unused, struct inode *inode,
+ const char *name, const void *value,
+ size_t size, int flags)
+{
+ return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name,
+ value, size, flags);
+}
+
+static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array,
+ void *fs_info)
+{
+ const struct xattr *xattr;
+ int err = 0;
+
+ for (xattr = xattr_array; xattr->name != NULL; xattr++) {
+ err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY,
+ xattr->name, xattr->value,
+ xattr->value_len, 0);
+ if (err < 0)
+ break;
+ }
+ return err;
+}
+
+int
+ext2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
+{
+ return security_inode_init_security(inode, dir, qstr,
+ &ext2_initxattrs, NULL);
+}
+
+const struct xattr_handler ext2_xattr_security_handler = {
+ .prefix = XATTR_SECURITY_PREFIX,
+ .get = ext2_xattr_security_get,
+ .set = ext2_xattr_security_set,
+};