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Changes that should have been in commit 46fa12e666.

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This commit is contained in:
Guus Sliepen 2014-12-08 08:43:15 +01:00
parent 46fa12e666
commit 5104001bae
1 changed files with 10 additions and 8 deletions
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18
src/net_packet.c
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@ -1036,7 +1036,7 @@ void handle_incoming_vpn_data(void *data, int flags) {
node_t *from, *to;
bool direct = false;
int len = recvfrom(ls->udp.fd, &pkt.dstid, MAXSIZE, 0, &addr.sa, &addrlen);
int len = recvfrom(ls->udp.fd, &pkt.seqno, MAXSIZE, 0, &addr.sa, &addrlen);
if(len <= 0 || len > MAXSIZE) {
if(!sockwouldblock(sockerrno))
@ -1054,9 +1054,9 @@ void handle_incoming_vpn_data(void *data, int flags) {
if(!n) {
// It might be from a 1.1 node, which might have a source ID in the packet.
from = lookup_node_id(&pkt.srcid);
if(from && !memcmp(&pkt.dstid, &nullid, sizeof nullid) && from->status.sptps) {
if(sptps_verify_datagram(&n->sptps, pkt.data, pkt.len))
from = lookup_node_id(&spkt->srcid);
if(from && !memcmp(&spkt->dstid, &nullid, sizeof nullid) && from->status.sptps) {
if(sptps_verify_datagram(&n->sptps, spkt->data, spkt->len - sizeof(spkt->srcid) - sizeof(spkt->dstid)))
n = from;
else
goto skip_harder;
@ -1077,20 +1077,22 @@ skip_harder:
}
if(n->status.sptps) {
if(memcmp(&pkt.dstid, &nullid, sizeof nullid)) {
if(memcmp(&spkt->dstid, &nullid, sizeof nullid)) {
direct = true;
from = n;
to = myself;
} else {
from = lookup_node_id(&pkt.srcid);
to = lookup_node_id(&pkt.dstid);
from = lookup_node_id(&spkt->srcid);
to = lookup_node_id(&spkt->dstid);
}
if(!from || !to) {
logger(DEBUG_PROTOCOL, LOG_WARNING, "Received UDP packet from %s (%s) with unknown source and/or destination ID", n->name, n->hostname);
return;
}
spkt->len -= sizeof spkt->dstid + sizeof spkt->srcid;
if(to != myself) {
send_sptps_data_priv(to, n, 0, pkt.data, pkt.len);
send_sptps_data_priv(to, n, 0, spkt->data, spkt->len);
return;
}
} else {