evm: call evm_inode_init_security from security_inode_init_security

Changelog v7:
- moved the initialization call to security_inode_init_security,
  renaming evm_inode_post_init_security to evm_inode_init_security
- increase size of xattr array for EVM xattr

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/security/security.c b/security/security.c
index 21a79b3d1e8..181990ae90c 100644
--- a/security/security.c
+++ b/security/security.c
@@ -20,7 +20,7 @@
 #include <linux/ima.h>
 #include <linux/evm.h>
 
-#define MAX_LSM_XATTR   1
+#define MAX_LSM_EVM_XATTR       2
 
 /* Boot-time LSM user choice */
 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
@@ -346,8 +346,8 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
                                  const struct qstr *qstr,
                                  const initxattrs initxattrs, void *fs_data)
 {
-        struct xattr new_xattrs[MAX_LSM_XATTR + 1];
-        struct xattr *lsm_xattr;
+        struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
+        struct xattr *lsm_xattr, *evm_xattr, *xattr;
         int ret;
 
         if (unlikely(IS_PRIVATE(inode)))
@@ -364,11 +364,17 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
                                                 &lsm_xattr->value_len);
         if (ret)
                 goto out;
+
+        evm_xattr = lsm_xattr + 1;
+        ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
+        if (ret)
+                goto out;
         ret = initxattrs(inode, new_xattrs, fs_data);
 out:
-        kfree(lsm_xattr->name);
-        kfree(lsm_xattr->value);
-
+        for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
+                kfree(xattr->name);
+                kfree(xattr->value);
+        }
         return (ret == -EOPNOTSUPP) ? 0 : ret;
 }
 EXPORT_SYMBOL(security_inode_init_security);