/* RFC 792 */
static void route_ipv4_unreachable(node_t *source, vpn_packet_t *packet, length_t ether_size, uint8_t type, uint8_t code) {
- struct ip ip = {};
- struct icmp icmp = {};
+ struct ip ip = {0};
+ struct icmp icmp = {0};
struct in_addr ip_src;
struct in_addr ip_dst;
static void route_ipv6_unreachable(node_t *source, vpn_packet_t *packet, length_t ether_size, uint8_t type, uint8_t code) {
struct ip6_hdr ip6;
- struct icmp6_hdr icmp6 = {};
+ struct icmp6_hdr icmp6 = {0};
uint16_t checksum;
struct {
}
if(!subnet->owner->status.reachable) {
- return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_UNREACH);
+ route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_UNREACH);
+ return;
}
if(forwarding_mode == FMODE_OFF && source != myself && subnet->owner != myself) {
- return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
+ route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
+ return;
}
if(decrement_ttl && source != myself && subnet->owner != myself)
}
if(directonly && subnet->owner != via) {
- return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
+ route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
+ return;
}
if(via && packet->len > MAX(via->mtu, 590) && via != myself) {
}
if(!subnet->owner->status.reachable) {
- return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE);
+ route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE);
+ return;
}
if(forwarding_mode == FMODE_OFF && source != myself && subnet->owner != myself) {
- return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
+ route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
+ return;
}
- if(decrement_ttl && source != myself && subnet->owner != myself)
+ if(decrement_ttl && source != myself && subnet->owner != myself) {
if(!do_decrement_ttl(source, packet)) {
return;
}
+ }
if(priorityinheritance) {
packet->priority = ((packet->data[14] & 0x0f) << 4) | (packet->data[15] >> 4);
}
if(directonly && subnet->owner != via) {
- return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
+ route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
+ return;
}
if(via && packet->len > MAX(via->mtu, 1294) && via != myself) {