Fix compiler warning

[meshlink] / src / net_packet.c

diff --git a/src/net_packet.c b/src/net_packet.c
index 9ca6b3cf3a484aa3051acd338db938f0bbdb3fec..8367a9c5157d78c978d65ce9e1267daa1e6fc862 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -276,10 +276,14 @@ static void receive_packet(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *pac
        logger(DEBUG_TRAFFIC, LOG_DEBUG, "Received packet of %d bytes from %s (%s)",
                           packet->len, n->name, n->hostname);
 
+    if (n->status.blacklisted) {
+        logger(DEBUG_PROTOCOL, LOG_WARNING, "Dropping packet from blacklisted node %s", n->name);
+    } else {
        n->in_packets++;
        n->in_bytes += packet->len;
 
-       route(n, packet);
+       route(mesh, n, packet);
+    }
 }
 
 static bool try_mac(meshlink_handle_t *mesh, node_t *n, const vpn_packet_t *inpkt) {
@@ -290,7 +294,7 @@ static void receive_udppacket(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *
        if(!n->sptps.state) {
                if(!n->status.waitingforkey) {
                        logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but we haven't exchanged keys yet", n->name, n->hostname);
-                       send_req_key(n);
+                       send_req_key(mesh, n);
                } else {
                        logger(DEBUG_TRAFFIC, LOG_DEBUG, "Got packet from %s (%s) but he hasn't got our key yet", n->name, n->hostname);
                }
@@ -316,12 +320,12 @@ static void send_sptps_packet(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *
        if(!n->status.validkey) {
                logger(DEBUG_TRAFFIC, LOG_INFO, "No valid key known yet for %s (%s)", n->name, n->hostname);
                if(!n->status.waitingforkey)
-                       send_req_key(n);
+                       send_req_key(mesh, n);
                else if(n->last_req_key + 10 < mesh->loop.now.tv_sec) {
                        logger(DEBUG_ALWAYS, LOG_DEBUG, "No key from %s after 10 seconds, restarting SPTPS", n->name);
                        sptps_stop(&n->sptps);
                        n->status.waitingforkey = false;
-                       send_req_key(n);
+                       send_req_key(mesh, n);
                }
                return;
        }
@@ -440,14 +444,6 @@ static void choose_broadcast_address(meshlink_handle_t *mesh, const node_t *n, c
 }
 
 static void send_udppacket(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *origpkt) {
-       vpn_packet_t pkt1, pkt2;
-       vpn_packet_t *pkt[] = { &pkt1, &pkt2, &pkt1, &pkt2 };
-       vpn_packet_t *inpkt = origpkt;
-       int nextpkt = 0;
-       vpn_packet_t *outpkt;
-       int origlen = origpkt->len;
-       size_t outlen;
-
        if(!n->status.reachable) {
                logger(DEBUG_TRAFFIC, LOG_INFO, "Trying to send UDP packet to unreachable node %s (%s)", n->name, n->hostname);
                return;
@@ -456,8 +452,9 @@ static void send_udppacket(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *ori
        return send_sptps_packet(mesh, n, origpkt);
 }
 
-bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len) {
+bool send_sptps_data(void *handle, uint8_t type, const void *data, size_t len) {
        node_t *to = handle;
+       meshlink_handle_t *mesh = to->mesh;
 
        /* Send it via TCP if it is a handshake packet, TCPOnly is in use, or this packet is larger than the MTU. */
 
@@ -468,9 +465,9 @@ bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len) {
                   to ensure we get to learn the reflexive UDP address. */
                if(!to->status.validkey) {
                        to->incompression = mesh->self->incompression;
-                       return send_request(to->nexthop->connection, "%d %s %s %s -1 -1 -1 %d", ANS_KEY, mesh->self->name, to->name, buf, to->incompression);
+                       return send_request(mesh, to->nexthop->connection, "%d %s %s %s -1 -1 -1 %d", ANS_KEY, mesh->self->name, to->name, buf, to->incompression);
                } else {
-                       return send_request(to->nexthop->connection, "%d %s %s %d %s", REQ_KEY, mesh->self->name, to->name, REQ_SPTPS, buf);
+                       return send_request(mesh, to->nexthop->connection, "%d %s %s %d %s", REQ_KEY, mesh->self->name, to->name, REQ_SPTPS, buf);
                }
        }
 
@@ -499,8 +496,9 @@ bool send_sptps_data(void *handle, uint8_t type, const char *data, size_t len) {
        return true;
 }
 
-bool receive_sptps_record(void *handle, uint8_t type, const char *data, uint16_t len) {
+bool receive_sptps_record(void *handle, uint8_t type, const void *data, uint16_t len) {
        node_t *from = handle;
+       meshlink_handle_t *mesh = from->mesh;
 
        if(type == SPTPS_HANDSHAKE) {
                if(!from->status.validkey) {
@@ -555,8 +553,6 @@ bool receive_sptps_record(void *handle, uint8_t type, const char *data, uint16_t
   send a packet to the given vpn ip.
 */
 void send_packet(meshlink_handle_t *mesh, node_t *n, vpn_packet_t *packet) {
-       node_t *via;
-
        if(n == mesh->self) {
                n->out_packets++;
                n->out_bytes += packet->len;
@@ -646,12 +642,12 @@ void handle_incoming_vpn_data(event_loop_t *loop, void *data, int flags) {
 
        sockaddrunmap(&from); /* Some braindead IPv6 implementations do stupid things. */
 
-       n = lookup_node_udp(&from);
+       n = lookup_node_udp(mesh, &from);
 
        if(!n) {
                n = try_harder(mesh, &from, &pkt);
                if(n)
-                       update_node_udp(n, &from);
+                       update_node_udp(mesh, n, &from);
                else if(mesh->debug_level >= DEBUG_PROTOCOL) {
                        hostname = sockaddr2hostname(&from);
                        logger(DEBUG_PROTOCOL, LOG_WARNING, "Received UDP packet from unknown source %s", hostname);
@@ -662,6 +658,10 @@ void handle_incoming_vpn_data(event_loop_t *loop, void *data, int flags) {
                        return;
        }
 
+    if (n->status.blacklisted) {
+                       logger(DEBUG_PROTOCOL, LOG_WARNING, "Dropping packet from blacklisted node %s", n->name);
+            return;
+    }
        n->sock = ls - mesh->listen_socket;
 
        receive_udppacket(mesh, n, &pkt);