Add the ability to dump all traffic going through route() over a control connection.

[tinc] / src / route.c

diff --git a/src/route.c b/src/route.c
index 9897d0d..618b0ab 100644 (file)
--- a/src/route.c
+++ b/src/route.c
@@ -22,10 +22,12 @@
 
 #include "splay_tree.h"
 #include "connection.h"
+#include "control_common.h"
 #include "ethernet.h"
 #include "ipv4.h"
 #include "ipv6.h"
 #include "logger.h"
+#include "meta.h"
 #include "net.h"
 #include "protocol.h"
 #include "route.h"
@@ -39,6 +41,7 @@ bool priorityinheritance = false;
 int macexpire = 600;
 bool overwrite_mac = false;
 mac_t mymac = {{0xFE, 0xFD, 0, 0, 0, 0}};
+bool pcap = false;
 
 /* Sizes of various headers */
 
@@ -860,7 +863,23 @@ static void route_mac(node_t *source, vpn_packet_t *packet) {
        send_packet(subnet->owner, packet);
 }
 
+static void send_pcap(vpn_packet_t *packet) {
+       pcap = false;
+       for(splay_node_t *node = connection_tree->head; node; node = node->next) {
+               connection_t *c = node->data;
+               if(!c->status.pcap)
+                       continue;
+               else
+                       pcap = true;
+               if(send_request(c, "%d %d %d", CONTROL, REQ_PCAP, packet->len))
+                       send_meta(c, (char *)packet->data, packet->len);
+       }
+}
+
 void route(node_t *source, vpn_packet_t *packet) {
+       if(pcap)
+               send_pcap(packet);
+
        if(forwarding_mode == FMODE_KERNEL && source != myself) {
                send_packet(myself, packet);
                return;