From 2dec9199f8a8a2c84b25a3d3e7e2f41b71e07834 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Wed, 17 Jun 2015 14:28:18 +0200
Subject: [PATCH 20/20] evmctl.c: do not depend on xattr.h with IMA defines

Compilation on older Linux distros (like Ubuntu 12.04) fails
because linux/xattr.h does not yet have the IMA defines. Compiling
there makes sense when only the tools are needed, for example when
signing an image in cross-compile mode.

To support this, add fallbacks for the two defines which are needed.
Their value is part of the Linux ABI and thus fixed.

Upstream-status: Submitted [linux-ima-devel@lists.sourceforge.net]

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>

---
 src/evmctl.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/evmctl.c b/src/evmctl.c
index c54efbb..23cf54c 100644
--- a/src/evmctl.c
+++ b/src/evmctl.c
@@ -57,6 +57,18 @@
 #include <termios.h>
 #include <assert.h>
 
+/*
+ * linux/xattr.h might be old to have this. Allow compilation on older
+ * Linux distros (like Ubuntu 12.04) by falling back to our own
+ * definition.
+ */
+#ifndef XATTR_IMA_SUFFIX
+# define XATTR_IMA_SUFFIX "ima"
+#endif
+#ifndef XATTR_NAME_IMA
+# define XATTR_NAME_IMA XATTR_SECURITY_PREFIX XATTR_IMA_SUFFIX
+#endif
+
 #include <openssl/sha.h>
 #include <openssl/pem.h>
 #include <openssl/hmac.h>
-- 
2.1.4