linux-toradex.git/net/ipv6/ipcomp6.c, branch v3.10.8

ipv6: Add redirect support to all protocol icmp error handlers.

2012-07-12T07:25:15+00:00

Signed-off-by: David S. Miller

ipv6: Handle PMTU in ICMP error handlers.

2012-06-15T21:54:11+00:00

One tricky issue on the ipv6 side vs. ipv4 is that the ICMP callouts
to handle the error pass the 32-bit info cookie in network byte order
whereas ipv4 passes it around in host byte order.

Like the ipv4 side, we have two helper functions.  One for when we
have a socket context and one for when we do not.

ip6ip6 tunnels are not handled here, because they handle PMTU events
by essentially relaying another ICMP packet-too-big message back to
the original sender.

This patch allows us to get rid of rt6_do_pmtu_disc().  It handles all
kinds of situations that simply cannot happen when we do the PMTU
update directly using a fully resolved route.

In fact, the "plen == 128" check in ip6_rt_update_pmtu() can very
likely be removed or changed into a BUG_ON() check.  We should never
have a prefixed ipv6 route when we get there.

Another piece of strange history here is that TCP and DCCP, unlike in
ipv4, never invoke the update_pmtu() method from their ICMP error
handlers.  This is incredibly astonishing since this is the context
where we have the most accurate context in which to make a PMTU
update, namely we have a fully connected socket and associated cached
socket route.

Signed-off-by: David S. Miller

net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug

2012-05-16T05:01:03+00:00

Use the current debugging style and enable dynamic_debug.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

net: ipv6: Standardize prefixes for message logging

2012-05-16T05:01:03+00:00

Add #define pr_fmt(fmt) as appropriate.

Add "IPv6: " to appropriate files.

Convert printk(KERN_ to pr_ (but not KERN_DEBUG).
Standardize on "%s: " not "%s(): " when emitting __func__.
Use "%s: ", __func__ instead of embedding function name.
Coalesce formats, align arguments.

ADDRCONF output is now prefixed with "IPv6: "

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

inet: constify ip headers and in6_addr

2011-04-22T18:04:14+00:00

Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

xfrm: SA lookups signature with mark

2010-02-23T00:20:22+00:00

pass mark to all SA lookups to prepare them for when we add code
to have them search.

Signed-off-by: Jamal Hadi Salim 
Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-02-17T06:09:29+00:00

ipcomp: Avoid duplicate calls to ipcomp_destroy

2010-02-16T22:53:24+00:00

When ipcomp_tunnel_attach fails we will call ipcomp_destroy twice.
This may lead to double-frees on certain structures.

As there is no reason to explicitly call ipcomp_destroy, this patch
removes it from ipcomp*.c and lets the standard xfrm_state destruction
take place.

This is based on the discovery and patch by Alexey Dobriyan.

Tested-by: Alexey Dobriyan 
Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

netns xfrm: ipcomp6 support

2010-01-28T14:31:06+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller

netns xfrm: xfrm6_tunnel in netns

2010-01-28T14:31:05+00:00

I'm not sure about rcu stuff near kmem cache destruction:
* checks for non-empty hashes look bogus, they're done _before_
  rcu_berrier()
* unregistering netns ops is done before kmem_cache destoy
  (as it should), and unregistering involves rcu barriers by itself

So it looks nothing should be done.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller