dhcpv6: Rebind message implemented.

2 files changed, 49 insertions, 3 deletions

diff --git a/gdhcp/client.c b/gdhcp/client.c
index a1f03097..cd428cff 100644
--- a/gdhcp/client.c
+++ b/gdhcp/client.c
@@ -73,6 +73,7 @@ typedef enum _dhcp_client_state {
 	SOLICITATION,
 	REQUEST,
 	RENEW,
+	REBIND,
 } ClientState;
 
 struct _GDHCPClient {
@@ -123,6 +124,8 @@ struct _GDHCPClient {
 	gpointer request_data;
 	GDHCPClientEventFunc renew_cb;
 	gpointer renew_data;
+	GDHCPClientEventFunc rebind_cb;
+	gpointer rebind_data;
 	char *last_address;
 	unsigned char *duid;
 	int duid_len;
@@ -134,6 +137,7 @@ struct _GDHCPClient {
 	struct in6_addr ia_na;
 	struct in6_addr ia_ta;
 	time_t last_renew;
+	time_t last_rebind;
 };
 
 static inline void debug(GDHCPClient *client, const char *format, ...)
@@ -622,7 +626,8 @@ void g_dhcpv6_client_create_iaid(GDHCPClient *dhcp_client, int index,
 }
 
 int g_dhcpv6_client_get_timeouts(GDHCPClient *dhcp_client,
-				uint32_t *T1, uint32_t *T2, time_t *last_renew)
+				uint32_t *T1, uint32_t *T2,
+				time_t *last_renew, time_t *last_rebind)
 {
 	if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
 		return -EINVAL;
@@ -636,6 +641,9 @@ int g_dhcpv6_client_get_timeouts(GDHCPClient *dhcp_client,
 	if (last_renew != NULL)
 		*last_renew = dhcp_client->last_renew;
 
+	if (last_rebind != NULL)
+		*last_rebind = dhcp_client->last_rebind;
+
 	return 0;
 }
 
@@ -799,6 +807,11 @@ static int send_dhcpv6_renew(GDHCPClient *dhcp_client)
 	return send_dhcpv6_msg(dhcp_client, DHCPV6_RENEW, "renew");
 }
 
+static int send_dhcpv6_rebind(GDHCPClient *dhcp_client)
+{
+	return send_dhcpv6_msg(dhcp_client, DHCPV6_REBIND, "rebind");
+}
+
 static int send_information_req(GDHCPClient *dhcp_client)
 {
 	return send_dhcpv6_msg(dhcp_client, DHCPV6_INFORMATION_REQ,
@@ -870,7 +883,7 @@ GDHCPClient *g_dhcp_client_new(GDHCPType type,
 	dhcp_client->require_list = NULL;
 	dhcp_client->duid = NULL;
 	dhcp_client->duid_len = 0;
-	dhcp_client->last_renew = time(0);
+	dhcp_client->last_renew = dhcp_client->last_rebind = time(0);
 
 	*error = G_DHCP_CLIENT_ERROR_NONE;
 
@@ -1980,6 +1993,7 @@ static gboolean listener_event(GIOChannel *channel, GIOCondition condition,
 	case INFORMATION_REQ:
 	case REQUEST:
 	case RENEW:
+	case REBIND:
 		if (dhcp_client->type != G_DHCP_IPV6)
 			return TRUE;
 
@@ -2026,6 +2040,11 @@ static gboolean listener_event(GIOChannel *channel, GIOCondition condition,
 					dhcp_client->renew_data);
 			return TRUE;
 		}
+		if (dhcp_client->rebind_cb != NULL) {
+			dhcp_client->rebind_cb(dhcp_client,
+					dhcp_client->rebind_data);
+			return TRUE;
+		}
 		break;
 	default:
 		break;
@@ -2159,6 +2178,16 @@ int g_dhcp_client_start(GDHCPClient *dhcp_client, const char *last_address)
 				return re;
 			}
 			send_dhcpv6_renew(dhcp_client);
+
+		} else if (dhcp_client->rebind_cb) {
+			dhcp_client->state = REBIND;
+			re = switch_listening_mode(dhcp_client, L3);
+			if (re != 0) {
+				switch_listening_mode(dhcp_client, L_NONE);
+				dhcp_client->state = 0;
+				return re;
+			}
+			send_dhcpv6_rebind(dhcp_client);
 		}
 
 		return 0;
@@ -2303,6 +2332,12 @@ void g_dhcp_client_register_event(GDHCPClient *dhcp_client,
 		dhcp_client->renew_cb = func;
 		dhcp_client->renew_data = data;
 		return;
+	case G_DHCP_CLIENT_EVENT_REBIND:
+		if (dhcp_client->type == G_DHCP_IPV4)
+			return;
+		dhcp_client->rebind_cb = func;
+		dhcp_client->rebind_data = data;
+		return;
 	}
 }
 
@@ -2342,6 +2377,7 @@ char *g_dhcp_client_get_netmask(GDHCPClient *dhcp_client)
 	case SOLICITATION:
 	case REQUEST:
 	case RENEW:
+	case REBIND:
 		break;
 	}
 	return NULL;
@@ -2446,6 +2482,14 @@ void g_dhcpv6_client_reset_renew(GDHCPClient *dhcp_client)
 	dhcp_client->last_renew = time(0);
 }
 
+void g_dhcpv6_client_reset_rebind(GDHCPClient *dhcp_client)
+{
+	if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
+		return;
+
+	dhcp_client->last_rebind = time(0);
+}
+
 uint16_t g_dhcpv6_client_get_status(GDHCPClient *dhcp_client)
 {
 	if (dhcp_client == NULL || dhcp_client->type == G_DHCP_IPV4)
diff --git a/gdhcp/gdhcp.h b/gdhcp/gdhcp.h
index 3982e3ef..29eea566 100644
--- a/gdhcp/gdhcp.h
+++ b/gdhcp/gdhcp.h
@@ -57,6 +57,7 @@ typedef enum {
 	G_DHCP_CLIENT_EVENT_ADVERTISE,
 	G_DHCP_CLIENT_EVENT_REQUEST,
 	G_DHCP_CLIENT_EVENT_RENEW,
+	G_DHCP_CLIENT_EVENT_REBIND,
 } GDHCPClientEvent;
 
 typedef enum {
@@ -143,11 +144,12 @@ void g_dhcpv6_client_create_iaid(GDHCPClient *dhcp_client, int index,
 				unsigned char *iaid);
 int g_dhcpv6_client_get_timeouts(GDHCPClient *dhcp_client,
 				uint32_t *T1, uint32_t *T2,
-				time_t *last_renew);
+				time_t *last_renew, time_t *last_rebind);
 uint32_t g_dhcpv6_client_get_iaid(GDHCPClient *dhcp_client);
 int g_dhcpv6_client_set_ia(GDHCPClient *dhcp_client, int index,
 		int code, uint32_t *T1, uint32_t *T2, gboolean add_iaaddr);
 void g_dhcpv6_client_reset_renew(GDHCPClient *dhcp_client);
+void g_dhcpv6_client_reset_rebind(GDHCPClient *dhcp_client);
 
 /* DHCP Server */
 typedef enum {