diff options
| -rw-r--r-- | passt.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -330,7 +330,9 @@ static void tap4_handler(struct ctx *c, char *in, size_t len) debug("icmp from tap: %s -> %s", inet_ntop(AF_INET, &iph->saddr, buf_s, sizeof(buf_s)), inet_ntop(AF_INET, &iph->daddr, buf_d, sizeof(buf_d))); - } else { + } else if (iph->protocol == IPPROTO_TCP || + iph->protocol == IPPROTO_UDP || + iph->protocol == IPPROTO_SCTP) { struct tcphdr *th = (struct tcphdr *)l4h; if (len < sizeof(*th) && len < sizeof(struct udphdr)) @@ -387,7 +389,8 @@ static void tap6_handler(struct ctx *c, char *in, size_t len) debug("icmpv6 from tap: %s ->\n\t%s", inet_ntop(AF_INET6, &ip6h->saddr, buf_s, sizeof(buf_s)), inet_ntop(AF_INET6, &ip6h->daddr, buf_d, sizeof(buf_d))); - } else { + } else if (proto == IPPROTO_TCP || proto == IPPROTO_UDP || + proto == IPPROTO_SCTP) { struct tcphdr *th = (struct tcphdr *)l4h; if (len < sizeof(*th) && len < sizeof(struct udphdr)) |