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authorJan Engelhardt <jengelh@medozas.de>2008-10-08 11:35:18 +0200
committerPatrick McHardy <kaber@trash.net>2008-10-08 11:35:18 +0200
commitf7108a20dee44e5bb037f9e48f6a207b42e6ae1c (patch)
treebfc741548cdf416a59a89d89a20ba2cbdc8e988e /net/ipv6/netfilter/ip6t_rt.c
parentc2df73de246ae75705af8ceed4f385b261dea108 (diff)
netfilter: xtables: move extension arguments into compound structure (1/6)
The function signatures for Xtables extensions have grown over time. It involves a lot of typing/replication, and also a bit of stack space even if they are not used. Realize an NFWS2008 idea and pack them into structs. The skb remains outside of the struct so gcc can continue to apply its optimizations. This patch does this for match extensions' match functions. A few ambiguities have also been addressed. The "offset" parameter for example has been renamed to "fragoff" (there are so many different offsets already) and "protoff" to "thoff" (there is more than just one protocol here, so clarify). Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv6/netfilter/ip6t_rt.c')
-rw-r--r--net/ipv6/netfilter/ip6t_rt.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 7c544ae591d..9cf4b8a37af 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -36,14 +36,11 @@ segsleft_match(u_int32_t min, u_int32_t max, u_int32_t id, bool invert)
return r;
}
-static bool
-rt_mt6(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const struct xt_match *match,
- const void *matchinfo, int offset, unsigned int protoff, bool *hotdrop)
+static bool rt_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
{
struct ipv6_rt_hdr _route;
const struct ipv6_rt_hdr *rh;
- const struct ip6t_rt *rtinfo = matchinfo;
+ const struct ip6t_rt *rtinfo = par->matchinfo;
unsigned int temp;
unsigned int ptr;
unsigned int hdrlen = 0;
@@ -55,13 +52,13 @@ rt_mt6(const struct sk_buff *skb, const struct net_device *in,
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = true;
+ *par->hotdrop = true;
return false;
}
rh = skb_header_pointer(skb, ptr, sizeof(_route), &_route);
if (rh == NULL) {
- *hotdrop = true;
+ *par->hotdrop = true;
return false;
}