IPACM: fix the MHI icmpv6 exception rule

Clean the icmp v6 rule when backhaul
type is ipv6.

Change-Id: I5b158f5cbfb6846fc21a9556462c23a0d0f7b2d2

2 files changed, 13 insertions, 10 deletions

diff --git a/ipacm/src/IPACM_Lan.cpp b/ipacm/src/IPACM_Lan.cpp
index a6b2b90..c97168d 100644
--- a/ipacm/src/IPACM_Lan.cpp
+++ b/ipacm/src/IPACM_Lan.cpp
@@ -4242,7 +4242,7 @@ int IPACM_Lan::handle_private_subnet_android(ipa_ip_type iptype)
 			}
 			else
 			{
-				IPACMERR("MTU is 0");
+				IPACMDBG_H("MTU is zero\n");
 			}
 		}
 		IPACMDBG_H("total %d MTU rules are needed\n", mtu_rule_cnt);
diff --git a/ipacm/src/IPACM_Wan.cpp b/ipacm/src/IPACM_Wan.cpp
index 763e16a..2ee9f2c 100644
--- a/ipacm/src/IPACM_Wan.cpp
+++ b/ipacm/src/IPACM_Wan.cpp
@@ -4834,6 +4834,7 @@ int IPACM_Wan::handle_route_del_evt(ipa_ip_type iptype, bool delete_only)
 	int fd_wwan_ioctl;
 	memset(&wan_state, 0, sizeof(wan_state));
 #endif
+	int ret = IPACM_SUCCESS;
 
 	IPACMDBG_H("got handle_route_del_evt for STA-mode with ip-family:%d \n", iptype);
 
@@ -4974,24 +4975,19 @@ int IPACM_Wan::handle_route_del_evt(ipa_ip_type iptype, bool delete_only)
 			if(delete_offload_frag_rule())
 			{
 				IPACMERR("Failed to delete DL frag rule \n");
-				return IPACM_FAILURE;
-			}
-			/* Delete MHI icmpv6 exception rule */
-			if(delete_icmpv6_exception_rule())
-			{
-				IPACMERR("Failed to delete icmpv6 rule \n");
-				return IPACM_FAILURE;
+				ret = IPACM_FAILURE;
 			}
+
 			/* Delete tcp_fin_rst rule */
 			if(delete_tcp_fin_rst_exception_rule())
 			{
 				IPACMERR("Failed to delete tcp_fin_rst rule \n");
-				return IPACM_FAILURE;
+				ret = IPACM_FAILURE;
 			}
+			return ret;
 		}
 		else
 		{
-
 			wandown_data->backhaul_type = m_is_sta_mode;
 			memcpy(wandown_data->ipv6_prefix, ipv6_prefix, sizeof(wandown_data->ipv6_prefix));
 			evt_data.event = IPA_HANDLE_WAN_DOWN_V6;
@@ -5010,6 +5006,13 @@ int IPACM_Wan::handle_route_del_evt(ipa_ip_type iptype, bool delete_only)
 			{
 				memset(IPACM_Wan::wan_up_dev_name, 0, sizeof(IPACM_Wan::wan_up_dev_name));
 			}
+			/* Delete MHI icmpv6 exception rule */
+			if(delete_icmpv6_exception_rule())
+			{
+				IPACMERR("Failed to delete icmpv6 rule \n");
+				return IPACM_FAILURE;
+			}
+
 		}
 	}
 	else