This is a note to let you know that I've just added the patch titled
net/ipv4: Ensure that location of timestamp option is stored
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ipv4-ensure-that-location-of-timestamp-option-is-stored.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3a5faa2edaecb2f83f3a86d06a7fc4ca4250a141 Mon Sep 17 00:00:00 2001
From: David Ward <[email protected]>
Date: Mon, 11 Mar 2013 10:43:39 +0000
Subject: net/ipv4: Ensure that location of timestamp option is stored
From: David Ward <[email protected]>
[ Upstream commit 4660c7f498c07c43173142ea95145e9dac5a6d14 ]
This is needed in order to detect if the timestamp option appears
more than once in a packet, to remove the option if the packet is
fragmented, etc. My previous change neglected to store the option
location when the router addresses were prespecified and Pointer >
Length. But now the option location is also stored when Flag is an
unrecognized value, to ensure these option handling behaviors are
still performed.
Signed-off-by: David Ward <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ipv4/ip_options.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -360,7 +360,6 @@ int ip_options_compile(struct net *net,
}
switch (optptr[3]&0xF) {
case IPOPT_TS_TSONLY:
- opt->ts = optptr - iph;
if (skb)
timeptr = &optptr[optptr[2]-1];
opt->ts_needtime = 1;
@@ -371,7 +370,6 @@ int ip_options_compile(struct net *net,
pp_ptr = optptr + 2;
goto error;
}
- opt->ts = optptr - iph;
if (rt) {
memcpy(&optptr[optptr[2]-1],
&rt->rt_spec_dst, 4);
timeptr = &optptr[optptr[2]+3];
@@ -385,7 +383,6 @@ int ip_options_compile(struct net *net,
pp_ptr = optptr + 2;
goto error;
}
- opt->ts = optptr - iph;
{
__be32 addr;
memcpy(&addr,
&optptr[optptr[2]-1], 4);
@@ -418,12 +415,12 @@ int ip_options_compile(struct net *net,
pp_ptr = optptr + 3;
goto error;
}
- opt->ts = optptr - iph;
if (skb) {
optptr[3] =
(optptr[3]&0xF)|((overflow+1)<<4);
opt->is_changed = 1;
}
}
+ opt->ts = optptr - iph;
break;
case IPOPT_RA:
if (optlen < 4) {
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/net-ipv4-ensure-that-location-of-timestamp-option-is-stored.patch
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