[connman] Merged IPv6 related code.

1. Added code to set IPv6 gateway addess.
2. Fix IPv6 issue in case of auto-configuration.

Change-Id: Ie0e1d53dd269a09600d2f08e66d73cefd6dd3c29
Signed-off-by: Seonah Moon <seonah1.moon@samsung.com>

4 files changed, 89 insertions, 3 deletions

diff --git a/src/connman.h b/src/connman.h
index 2217cc4e..077bc1c7 100755
--- a/src/connman.h
+++ b/src/connman.h
@@ -169,6 +169,9 @@ int __connman_inet_ipv6_send_rs(int index, int timeout,
 			__connman_inet_rs_cb_t callback, void *user_data);
 int __connman_inet_ipv6_send_ra(int index, struct in6_addr *src_addr,
 				GSList *prefixes, int router_lifetime);
+#if defined TIZEN_EXT
+void __connman_network_set_auto_ipv6_gateway(char *gateway, void *user_data);
+#endif
 
 typedef void (*__connman_inet_ns_cb_t) (struct nd_neighbor_advert *reply,
 					unsigned int length,
diff --git a/src/inet.c b/src/inet.c
index 972fdff5..fcffab8c 100755
--- a/src/inet.c
+++ b/src/inet.c
@@ -1340,6 +1340,37 @@ static int icmpv6_recv(int fd, gpointer user_data)
 		return -errno;
 	}
 
+#if defined TIZEN_EXT
+	/* Set Received Source Address from router as IPv6 Gateway Address */
+	char src_addr[INET6_ADDRSTRLEN];
+	if(inet_ntop(AF_INET6, &(saddr.sin6_addr), src_addr, INET6_ADDRSTRLEN)
+			== NULL) {
+		xs_cleanup(data);
+		return -errno;
+	}
+	DBG("Received Source Address %s from router", src_addr);
+
+	/* icmpv6_recv() function can be called in two scenarios :
+	 * 1. When __connman_inet_ipv6_send_rs() is called from check_dhcpv6()
+	 * 2. When __connman_inet_ipv6_send_rs() is called from
+	 * __connman_6to4_probe()
+	 * In the second case it is not  required to set DHCPv6 Gateway  Address
+	 * as DHCPv6 was not started and  network structure was not passed as
+	 * user_data. If it is tried  to add Source Address as  Gateway Address
+	 * then it will lead to  crash because of  user_data being ip_address
+	 * instead of network structure. So Adding Gateway Address in case 1st
+	 * case only.
+	 */
+	char *address = data->user_data;
+	int err = 0;
+	unsigned char buffer[sizeof(struct in6_addr)] = {0, };
+	/* Checking if user_data is an ip_address */
+	err = inet_pton(AF_INET, address, buffer);
+	/* Setting Received Source Address from
+	 * router as Gateway Address */
+	if(err <= 0)
+		__connman_network_set_auto_ipv6_gateway(src_addr, data->user_data);
+#endif
 	hdr = (struct nd_router_advert *)buf;
 	DBG("code %d len %zd hdr %zd", hdr->nd_ra_code, len,
 				sizeof(struct nd_router_advert));
diff --git a/src/ipconfig.c b/src/ipconfig.c
index 8987ab1a..27d98b29 100755
--- a/src/ipconfig.c
+++ b/src/ipconfig.c
@@ -410,7 +410,20 @@ static void free_ipdevice(gpointer data)
 static void __connman_ipconfig_lower_up(struct connman_ipdevice *ipdevice)
 {
 	DBG("ipconfig ipv4 %p ipv6 %p", ipdevice->config_ipv4,
-					ipdevice->config_ipv6);
+			ipdevice->config_ipv6);
+#if defined TIZEN_EXT
+	if (ipdevice->config_ipv6 != NULL &&
+			ipdevice->config_ipv6->enabled == TRUE)
+		return;
+
+	char *ifname = connman_inet_ifname(ipdevice->index);
+
+	if (__connman_device_isfiltered(ifname) == FALSE) {
+		ipdevice->ipv6_enabled = get_ipv6_state(ifname);
+		set_ipv6_state(ifname, FALSE);
+	}
+	g_free(ifname);
+#endif
 }
 
 static void __connman_ipconfig_lower_down(struct connman_ipdevice *ipdevice)
@@ -1708,6 +1721,11 @@ int __connman_ipconfig_disable(struct connman_ipconfig *ipconfig)
 	if (ipdevice->config_ipv6 == ipconfig) {
 		ipconfig_list = g_list_remove(ipconfig_list, ipconfig);
 
+#if defined TIZEN_EXT
+		if (ipdevice->config_ipv6->method ==
+				CONNMAN_IPCONFIG_METHOD_AUTO)
+			disable_ipv6(ipdevice->config_ipv6);
+#endif
 		connman_ipaddress_clear(ipdevice->config_ipv6->system);
 		__connman_ipconfig_unref(ipdevice->config_ipv6);
 		ipdevice->config_ipv6 = NULL;
@@ -2123,7 +2141,10 @@ int __connman_ipconfig_set_config(struct connman_ipconfig *ipconfig,
 
 	case CONNMAN_IPCONFIG_METHOD_OFF:
 		ipconfig->method = method;
-
+#if defined TIZEN_EXT
+		if (ipconfig->type == CONNMAN_IPCONFIG_TYPE_IPV6)
+			disable_ipv6(ipconfig);
+#endif
 		break;
 
 	case CONNMAN_IPCONFIG_METHOD_AUTO:
@@ -2133,7 +2154,9 @@ int __connman_ipconfig_set_config(struct connman_ipconfig *ipconfig,
 		ipconfig->method = method;
 		if (privacy_string)
 			ipconfig->ipv6_privacy_config = privacy;
-
+#if defined TIZEN_EXT
+		enable_ipv6(ipconfig);
+#endif
 		break;
 
 	case CONNMAN_IPCONFIG_METHOD_MANUAL:
diff --git a/src/network.c b/src/network.c
index 86876192..78ce2299 100755
--- a/src/network.c
+++ b/src/network.c
@@ -1729,6 +1729,35 @@ int __connman_network_clear_ipconfig(struct connman_network *network,
 	return 0;
 }
 
+#if defined TIZEN_EXT
+void __connman_network_set_auto_ipv6_gateway(char *gateway, void *user_data)
+{
+	DBG("");
+
+	struct connman_network *network = user_data;
+	struct connman_service *service;
+	struct connman_ipconfig *ipconfig = NULL;
+	int err;
+
+	service = connman_service_lookup_from_network(network);
+	if (service == NULL)
+		return;
+
+	ipconfig = __connman_service_get_ipconfig(service, AF_INET6);
+	if (ipconfig == NULL)
+		return;
+
+	__connman_ipconfig_set_gateway(ipconfig, gateway);
+	err = __connman_ipconfig_gateway_add(ipconfig, service);
+
+	if(err == 0)
+		__connman_connection_gateway_activate(service,
+				CONNMAN_IPCONFIG_TYPE_IPV6);
+
+	return;
+}
+#endif
+
 int __connman_network_enable_ipconfig(struct connman_network *network,
 				struct connman_ipconfig *ipconfig)
 {