From 09c43fdc1a23a58d33dffc9a6005c99f76c419bd Mon Sep 17 00:00:00 2001
From: Alexander Traud <pabstraud@compuserve.com>
Date: Mon, 12 Mar 2018 10:22:43 +0100
Subject: [PATCH] res_srtp: Add support for libsrtp2.x on openSUSE.

Since ASTERISK-26976, libSRTP 2.x can be used for sRTP. However, that change
added a private header which is not available on openSUSE for example. To
remain compatibility with very old libSRTP versions, the affected/missing
symbols AES_128_ICM and HMAC_SHA1 are defined manually.

ASTERISK-27733

Change-Id: I25c5cb8fa966043d1506ebef449e5a724412b4b6
---
 res/res_srtp.c         | 1 -
 res/srtp/srtp_compat.h | 8 ++------
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/res/res_srtp.c b/res/res_srtp.c
index 773d533166..f3f8999c69 100644
--- a/res/res_srtp.c
+++ b/res/res_srtp.c
@@ -41,7 +41,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
 #if HAVE_SRTP_VERSION > 1
 # include <srtp2/srtp.h>
-# include <srtp2/crypto_types.h>
 # include "srtp/srtp_compat.h"
 # include <openssl/rand.h>
 #else
diff --git a/res/srtp/srtp_compat.h b/res/srtp/srtp_compat.h
index bf42082445..a7f94c6890 100644
--- a/res/srtp/srtp_compat.h
+++ b/res/srtp/srtp_compat.h
@@ -5,12 +5,8 @@
 
 #define crypto_policy_t srtp_crypto_policy_t
 
-#if defined(SRTP_AES_ICM_128)
-#define AES_128_ICM SRTP_AES_ICM_128
-#else
-#define AES_128_ICM SRTP_AES_ICM
-#endif
-#define HMAC_SHA1 SRTP_HMAC_SHA1
+#define AES_128_ICM 1
+#define HMAC_SHA1 3
 
 #define err_status_t srtp_err_status_t
 #define err_status_ok srtp_err_status_ok
-- 
2.47.2