linux/net/ipv4/ip_input.c, branch v2.6.24.1

[IPV4]: Uninline netfilter okfns

2007-10-15T19:26:35Z

Now that we don't pass double skb pointers to nf_hook_slow anymore, gcc can generate tail calls for some of the netfilter hook okfn invocations, so there is no need to inline the functions anymore. This caused huge code bloat since we ended up with one inlined version and one out-of-line version since we pass the address to nf_hook_slow. Before: text data bss dec hex filename 8997385 1016524 524652 10538561 a0ce41 vmlinux After: text data bss dec hex filename 8994009 1016524 524652 10535185 a0c111 vmlinux ------------------------------------------------------- -3376 All cases have been verified to generate tail-calls with and without netfilter. The okfns in ipmr and xfrm4_input still remain inline because gcc can't generate tail-calls for them. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller

[IPV4]: Change ip_defrag to return an integer

2007-10-15T19:26:25Z

Now that ip_frag always returns the packet given to it on input, we can change it to return an integer indicating error instead. This patch does that and updates all its callers accordingly. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller

[NET]: Make packet reception network namespace safe

2007-10-10T23:49:08Z

This patch modifies every packet receive function registered with dev_add_pack() to drop packets if they are not from the initial network namespace. This should ensure that the various network stacks do not receive packets in a anything but the initial network namespace until the code has been converted and is ready for them. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

[IPV4] SNMP: Support InMcastPkts and InBcastPkts

2007-04-30T07:58:29Z

A received IP multicast datagram should be counted as InMcastPkts. By the same token, a received IP broadcast datagram should be counted as InBcastPkts. Signed-off-by: Mitsuru Chinen Signed-off-by: David S. Miller

[IPV4] SNMP: Support InTruncatedPkts

2007-04-30T07:58:26Z

An IP datagram which is being discarded because the datagram frame didn't carry enough data should be counted as InTruncatedPkts. Signed-off-by: Mitsuru Chinen Signed-off-by: David S. Miller

[IPV4] SNMP: Support InNoRoutes

2007-04-30T07:58:22Z

An IP datagram which is being discarded because of no routes in the forwarding path should be counted as InNoRoutes. Signed-off-by: Mitsuru Chinen Signed-off-by: David S. Miller

[SK_BUFF]: Introduce skb_reset_transport_header(skb)

2007-04-26T05:25:15Z

For the common, open coded 'skb->h.raw = skb->data' operation, so that we can later turn skb->h.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple cases: skb->h.raw = skb->data; skb->h.raw = {skb_push|[__]skb_pull}() The next ones will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

2007-04-26T05:25:10Z

Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

[IP]: Introduce ip_hdrlen()

2007-04-26T05:25:07Z

For the common sequence "skb->nh.iph->ihl * 4", removing a good number of open coded skb->nh.iph uses, now to go after the rest... Just out of curiosity, here are the idioms found to get the same result: skb->nh.iph->ihl << 2 skb->nh.iph->ihl<<2 skb->nh.iph->ihl * 4 skb->nh.iph->ihl*4 (skb->nh.iph)->ihl * sizeof(u32) Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

[NET] IPV4: Fix whitespace errors.

2007-02-11T07:19:39Z

Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller