diff options
| author | Simon Horman <horms@verge.net.au> | 2006-10-02 16:11:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-10-04 00:30:54 -0700 |
| commit | b4c4ed175ff0ee816df48571cfa9b73f521964b6 (patch) | |
| tree | 11e077983cb640f93c54edf25ce1f1a1a6040562 /net/ipv4/netfilter.c | |
| parent | f1da70632fa0875f80fc60991a010c31f40983ff (diff) | |
[NETFILTER]: add type parameter to ip_route_me_harder
By adding a type parameter to ip_route_me_harder() the
expensive call to inet_addr_type() can be avoided in some cases.
A followup patch where ip_route_me_harder() is called from within
ip_vs_out() is one such example.
Signed-off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/netfilter.c')
| -rw-r--r-- | net/ipv4/netfilter.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index 5ac15379a0cf..e2005c6810a4 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -8,7 +8,7 @@ #include <net/ip.h> /* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */ -int ip_route_me_harder(struct sk_buff **pskb) +int ip_route_me_harder(struct sk_buff **pskb, unsigned addr_type) { struct iphdr *iph = (*pskb)->nh.iph; struct rtable *rt; @@ -16,10 +16,13 @@ int ip_route_me_harder(struct sk_buff **pskb) struct dst_entry *odst; unsigned int hh_len; + if (addr_type == RTN_UNSPEC) + addr_type = inet_addr_type(iph->saddr); + /* some non-standard hacks like ipt_REJECT.c:send_reset() can cause * packets with foreign saddr to appear on the NF_IP_LOCAL_OUT hook. */ - if (inet_addr_type(iph->saddr) == RTN_LOCAL) { + if (addr_type == RTN_LOCAL) { fl.nl_u.ip4_u.daddr = iph->daddr; fl.nl_u.ip4_u.saddr = iph->saddr; fl.nl_u.ip4_u.tos = RT_TOS(iph->tos); @@ -156,7 +159,7 @@ static int nf_ip_reroute(struct sk_buff **pskb, const struct nf_info *info) if (!(iph->tos == rt_info->tos && iph->daddr == rt_info->daddr && iph->saddr == rt_info->saddr)) - return ip_route_me_harder(pskb); + return ip_route_me_harder(pskb, RTN_UNSPEC); } return 0; } |