From 7db9a51e0f9931446ed4231feb1040ed5134fc60 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 20 Dec 2017 16:12:55 +0100 Subject: netfilter: remove saveroute indirection in struct nf_afinfo This is only used by nf_queue.c and this function comes with no symbol dependencies with IPv6, it just refers to structure layouts. Therefore, we can replace it by a direct function call from where it belongs. Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_queue.c | 42 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) (limited to 'net/netfilter') diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c index 0c02fdb7efc9..dfa35bd292c8 100644 --- a/net/netfilter/nf_queue.c +++ b/net/netfilter/nf_queue.c @@ -10,6 +10,8 @@ #include #include #include +#include +#include #include #include #include @@ -108,6 +110,35 @@ void nf_queue_nf_hook_drop(struct net *net) } EXPORT_SYMBOL_GPL(nf_queue_nf_hook_drop); +static void nf_ip_saveroute(const struct sk_buff *skb, + struct nf_queue_entry *entry) +{ + struct ip_rt_info *rt_info = nf_queue_entry_reroute(entry); + + if (entry->state.hook == NF_INET_LOCAL_OUT) { + const struct iphdr *iph = ip_hdr(skb); + + rt_info->tos = iph->tos; + rt_info->daddr = iph->daddr; + rt_info->saddr = iph->saddr; + rt_info->mark = skb->mark; + } +} + +static void nf_ip6_saveroute(const struct sk_buff *skb, + struct nf_queue_entry *entry) +{ + struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry); + + if (entry->state.hook == NF_INET_LOCAL_OUT) { + const struct ipv6hdr *iph = ipv6_hdr(skb); + + rt_info->daddr = iph->daddr; + rt_info->saddr = iph->saddr; + rt_info->mark = skb->mark; + } +} + static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state, const struct nf_hook_entries *entries, unsigned int index, unsigned int queuenum) @@ -144,7 +175,16 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state, nf_queue_entry_get_refs(entry); skb_dst_force(skb); - afinfo->saveroute(skb, entry); + + switch (entry->state.pf) { + case AF_INET: + nf_ip_saveroute(skb, entry); + break; + case AF_INET6: + nf_ip6_saveroute(skb, entry); + break; + } + status = qh->outfn(entry, queuenum); if (status < 0) { -- cgit v1.2.3-59-g8ed1b