From 0875ed1f1b010e45a9c230b9435f84f7cb8a6046 Mon Sep 17 00:00:00 2001
From: Richard Fuchs <rfuchs@sipwise.com>
Date: Wed, 3 Mar 2021 08:26:40 -0500
Subject: [PATCH] TT#101201 fix ICE-lite mode switch

Change-Id: I10689bc07b86984880bfd420d6be4fbb057c41d1
(cherry picked from commit def813cfdedf7056d2e6feda861b9fca82a5d9ac)
---
 daemon/call.c             | 40 +++++++++++++++++++++------------------
 include/call_interfaces.h |  5 +++--
 2 files changed, 25 insertions(+), 20 deletions(-)

diff --git a/daemon/call.c b/daemon/call.c
index a165975ca..b2bec55eb 100644
--- a/daemon/call.c
+++ b/daemon/call.c
@@ -1310,24 +1310,28 @@ static void __ice_offer(const struct sdp_ng_flags *flags, struct call_media *thi
 		}
 	}
 
-	switch (flags->ice_lite_option) {
-		case ICE_LITE_OFF:
-			MEDIA_CLEAR(this, ICE_LITE_SELF);
-			MEDIA_CLEAR(other, ICE_LITE_SELF);
-			break;
-		case ICE_LITE_FWD:
-			MEDIA_SET(this, ICE_LITE_SELF);
-			MEDIA_CLEAR(other, ICE_LITE_SELF);
-			break;
-		case ICE_LITE_BKW:
-			MEDIA_CLEAR(this, ICE_LITE_SELF);
-			MEDIA_SET(other, ICE_LITE_SELF);
-			break;
-		case ICE_LITE_BOTH:
-			MEDIA_SET(this, ICE_LITE_SELF);
-			MEDIA_SET(other, ICE_LITE_SELF);
-			break;
-	};
+	if (flags->opmode == OP_OFFER) {
+		switch (flags->ice_lite_option) {
+			case ICE_LITE_OFF:
+				MEDIA_CLEAR(this, ICE_LITE_SELF);
+				MEDIA_CLEAR(other, ICE_LITE_SELF);
+				break;
+			case ICE_LITE_FWD:
+				MEDIA_SET(this, ICE_LITE_SELF);
+				MEDIA_CLEAR(other, ICE_LITE_SELF);
+				break;
+			case ICE_LITE_BKW:
+				MEDIA_CLEAR(this, ICE_LITE_SELF);
+				MEDIA_SET(other, ICE_LITE_SELF);
+				break;
+			case ICE_LITE_BOTH:
+				MEDIA_SET(this, ICE_LITE_SELF);
+				MEDIA_SET(other, ICE_LITE_SELF);
+				break;
+			default:
+				break;
+		}
+	}
 
 	/* determine roles (even if we don't actually do ICE) */
 	/* this = receiver, other = sender */
diff --git a/include/call_interfaces.h b/include/call_interfaces.h
index c6c4c1b9c..6d82bd141 100644
--- a/include/call_interfaces.h
+++ b/include/call_interfaces.h
@@ -58,11 +58,12 @@ struct sdp_ng_flags {
 		ICE_OPTIONAL,
 	} ice_option:3;
 	enum {
-		ICE_LITE_OFF = 0,
+		ICE_LITE_DEFAULT = 0,
+		ICE_LITE_OFF,
 		ICE_LITE_FWD,
 		ICE_LITE_BKW,
 		ICE_LITE_BOTH,
-	} ice_lite_option:2;
+	} ice_lite_option:3;
 	int asymmetric:1,
 	    protocol_accept:1,
 	    no_redis_update:1,