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netfilter: ipt_CLUSTERIP: use proto_ports_offset() to support AH message
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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parent
78d3307ede
commit
3d04ebb6ab
1 changed files with 14 additions and 15 deletions
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@ -29,6 +29,7 @@
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#include <net/netfilter/nf_conntrack.h>
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#include <net/net_namespace.h>
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#include <net/checksum.h>
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#include <net/ip.h>
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#define CLUSTERIP_VERSION "0.8"
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@ -231,24 +232,22 @@ clusterip_hashfn(const struct sk_buff *skb,
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{
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const struct iphdr *iph = ip_hdr(skb);
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unsigned long hashval;
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u_int16_t sport, dport;
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const u_int16_t *ports;
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u_int16_t sport = 0, dport = 0;
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int poff;
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switch (iph->protocol) {
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case IPPROTO_TCP:
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case IPPROTO_UDP:
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case IPPROTO_UDPLITE:
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case IPPROTO_SCTP:
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case IPPROTO_DCCP:
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case IPPROTO_ICMP:
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ports = (const void *)iph+iph->ihl*4;
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sport = ports[0];
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dport = ports[1];
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break;
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default:
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poff = proto_ports_offset(iph->protocol);
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if (poff >= 0) {
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const u_int16_t *ports;
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u16 _ports[2];
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ports = skb_header_pointer(skb, iph->ihl * 4 + poff, 4, _ports);
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if (ports) {
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sport = ports[0];
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dport = ports[1];
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}
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} else {
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if (net_ratelimit())
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pr_info("unknown protocol %u\n", iph->protocol);
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sport = dport = 0;
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}
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switch (config->hash_mode) {
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