linux-toradex.git/net/ipv4/ip_input.c, branch v2.6.22

[IPV4] SNMP: Support InMcastPkts and InBcastPkts

2007-04-30T07:58:29+00:00

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

2007-04-30T07:58:26+00:00

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

2007-04-30T07:58:22+00:00

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)

2007-04-26T05:25:15+00:00

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

2007-04-26T05:25:10+00:00

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

[IP]: Introduce ip_hdrlen()

2007-04-26T05:25:07+00:00

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.

2007-02-11T07:19:39+00:00

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

[IPV4]: Clear the whole IPCB, this clears also IPCB(skb)->flags.

2006-07-25T06:45:16+00:00

Signed-off-by: Guillaume Chazarain 
Signed-off-by: David S. Miller

[IPV4]: Clear skb cb on IP input

2006-07-14T21:49:32+00:00

when data arrives at IP through loopback (and possibly other devices).
So the field needs to be cleared before it confuses the route code.
This was seen when running netem over loopback, but there are probably
other device cases. Maybe this should go into stable?

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk