diff options
Diffstat (limited to 'net/netfilter/ipset/ip_set_getport.c')
-rw-r--r-- | net/netfilter/ipset/ip_set_getport.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/net/netfilter/ipset/ip_set_getport.c b/net/netfilter/ipset/ip_set_getport.c index dac156f..29fb01d 100644 --- a/net/netfilter/ipset/ip_set_getport.c +++ b/net/netfilter/ipset/ip_set_getport.c @@ -102,9 +102,25 @@ ip_set_get_ip4_port(const struct sk_buff *skb, bool src, int protocol = iph->protocol; /* See comments at tcp_match in ip_tables.c */ - if (protocol <= 0 || (ntohs(iph->frag_off) & IP_OFFSET)) + if (protocol <= 0) return false; + if (ntohs(iph->frag_off) & IP_OFFSET) + switch (protocol) { + case IPPROTO_TCP: + case IPPROTO_SCTP: + case IPPROTO_UDP: + case IPPROTO_UDPLITE: + case IPPROTO_ICMP: + /* Port info not available for fragment offset > 0 */ + return false; + default: + /* Other protocols doesn't have ports, + so we can match fragments */ + *proto = protocol; + return true; + } + return get_port(skb, protocol, protooff, src, port, proto); } EXPORT_SYMBOL_GPL(ip_set_get_ip4_port); |