diff options
Diffstat (limited to 'net/ipv4/netfilter/iptable_mangle.c')
-rw-r--r-- | net/ipv4/netfilter/iptable_mangle.c | 71 |
1 files changed, 21 insertions, 50 deletions
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c index e07bf24..4e699cd 100644 --- a/net/ipv4/netfilter/iptable_mangle.c +++ b/net/ipv4/netfilter/iptable_mangle.c @@ -71,51 +71,6 @@ static const struct xt_table packet_mangler = { .af = NFPROTO_IPV4, }; -/* The work comes in here from netfilter.c. */ -static unsigned int -ipt_pre_routing_hook(unsigned int hook, - struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) -{ - return ipt_do_table(skb, hook, in, out, - dev_net(in)->ipv4.iptable_mangle); -} - -static unsigned int -ipt_post_routing_hook(unsigned int hook, - struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) -{ - return ipt_do_table(skb, hook, in, out, - dev_net(out)->ipv4.iptable_mangle); -} - -static unsigned int -ipt_local_in_hook(unsigned int hook, - struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) -{ - return ipt_do_table(skb, hook, in, out, - dev_net(in)->ipv4.iptable_mangle); -} - -static unsigned int -ipt_forward_hook(unsigned int hook, - struct sk_buff *skb, - const struct net_device *in, - const struct net_device *out, - int (*okfn)(struct sk_buff *)) -{ - return ipt_do_table(skb, hook, in, out, - dev_net(in)->ipv4.iptable_mangle); -} - static unsigned int ipt_local_hook(unsigned int hook, struct sk_buff *skb, @@ -158,37 +113,53 @@ ipt_local_hook(unsigned int hook, return ret; } +/* The work comes in here from netfilter.c. */ +static unsigned int +iptable_mangle_hook(unsigned int hook, + struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + int (*okfn)(struct sk_buff *)) +{ + if (hook == NF_INET_LOCAL_OUT) + return ipt_local_hook(hook, skb, in, out, okfn); + + /* PREROUTING/INPUT/FORWARD: */ + return ipt_do_table(skb, hook, in, out, + dev_net(in)->ipv4.iptable_mangle); +} + static struct nf_hook_ops ipt_ops[] __read_mostly = { { - .hook = ipt_pre_routing_hook, + .hook = iptable_mangle_hook, .owner = THIS_MODULE, .pf = NFPROTO_IPV4, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_MANGLE, }, { - .hook = ipt_local_in_hook, + .hook = iptable_mangle_hook, .owner = THIS_MODULE, .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP_PRI_MANGLE, }, { - .hook = ipt_forward_hook, + .hook = iptable_mangle_hook, .owner = THIS_MODULE, .pf = NFPROTO_IPV4, .hooknum = NF_INET_FORWARD, .priority = NF_IP_PRI_MANGLE, }, { - .hook = ipt_local_hook, + .hook = iptable_mangle_hook, .owner = THIS_MODULE, .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_MANGLE, }, { - .hook = ipt_post_routing_hook, + .hook = iptable_mangle_hook, .owner = THIS_MODULE, .pf = NFPROTO_IPV4, .hooknum = NF_INET_POST_ROUTING, |