linux-toradex.git/net/ipv4/ip_output.c, branch v2.6.25.17

[NET]: Introducing socket mark socket option.

2008-02-01T03:27:19+00:00

A userspace program may wish to set the mark for each packets its send
without using the netfilter MARK target. Changing the mark can be used
for mark based routing without netfilter or for packet filtering.

It requires CAP_NET_ADMIN capability.

Signed-off-by: Laszlo Attila Toth 
Acked-by: Patrick McHardy 
Signed-off-by: David S. Miller

[INET]: Prevent out-of-sync truesize on ip_fragment slow path

2008-02-01T03:27:07+00:00

When ip_fragment has to hit the slow path the value of skb->truesize
may go out of sync because we would have updated it without changing
the packet length.  This violates the constraints on truesize.

This patch postpones the update of skb->truesize to prevent this.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[NETNS]: Add namespace for ICMP replying code.

2008-01-28T23:11:13+00:00

All needed API is done, the namespace is available when required from
the device on the DST entry from the incoming packet. So, just replace
init_net with proper namespace.

Other protocols will follow.

Signed-off-by: Denis V. Lunev 
Signed-off-by: David S. Miller

[NETNS]: Add namespace parameter to ip_route_output_key.

2008-01-28T23:11:07+00:00

Needed to propagate it down to the ip_route_output_flow.

Signed-off-by: Denis V. Lunev 
Signed-off-by: David S. Miller

[NETNS]: Add namespace parameter to ip_route_output_flow.

2008-01-28T23:11:06+00:00

Needed to propagate it down to the __ip_route_output_key.

Signed_off_by: Denis V. Lunev 
Signed-off-by: David S. Miller

[NET]: Remove obsolete comment

2008-01-28T23:00:45+00:00

It seems that ip_build_xmit is no longer used in here and
ip_append_data is used.

Signed-off-by: Ilpo Järvinen 
Signed-off-by: David S. Miller

[NETFILTER]: Introduce NF_INET_ hook values

2008-01-28T22:53:55+00:00

The IPv4 and IPv6 hook values are identical, yet some code tries to figure
out the "correct" value by looking at the address family. Introduce NF_INET_*
values for both IPv4 and IPv6. The old values are kept in a #ifndef __KERNEL__
section for userspace compatibility.

Signed-off-by: Patrick McHardy 
Acked-by: Herbert Xu 
Signed-off-by: David S. Miller

[IPV4]: Add ip_local_out

2008-01-28T22:53:47+00:00

Most callers of the LOCAL_OUT chain will set the IP packet length and
header checksum before doing so.  They also share the same output
function dst_output.

This patch creates a new function called ip_local_out which does all
of that and converts the appropriate users over to it.

Apart from removing duplicate code, it will also help in merging the
IPsec output path once the same thing is done for IPv6.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[INET]: Fix truesize setting in ip_append_data

2008-01-23T11:11:43+00:00

As it is ip_append_data only counts page fragments to the skb that
allocated it.  As such it means that the first skb gets hit with a
4K charge even though it might have only used a fraction of it while
all subsequent skb's that use the same page gets away with no charge
at all.

This bug was exposed by the UDP accounting patch.

[ The wmem_alloc bumping needs to be moved with the truesize,
  noticed by Takahiro Yasui.  -DaveM ]

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[IPV4]: Add missing skb->truesize increment in ip_append_page().

2008-01-23T11:11:40+00:00

And as noted by Takahiro Yasui, we thus need to bump the
sk->sk_wmem_alloc at this spot as well.

Signed-off-by: David S. Miller