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| author | Li Wei <lw@cn.fujitsu.com> | 2011-11-22 23:33:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-23 19:19:32 -0500 |
| commit | ac8a48106be49c422575ddc7531b776f8eb49610 (patch) | |
| tree | d770975ffc9cebfcbb2d3ad40b0601a8d1e77c32 /include/net/inet_sock.h | |
| parent | 67c170a24fc6669f8f7c0864d75caadef0a8e5e6 (diff) | |
| download | linux-ac8a48106be49c422575ddc7531b776f8eb49610.tar.gz linux-ac8a48106be49c422575ddc7531b776f8eb49610.tar.bz2 linux-ac8a48106be49c422575ddc7531b776f8eb49610.zip | |
ipv4: Save nexthop address of LSRR/SSRR option to IPCB.
We can not update iph->daddr in ip_options_rcv_srr(), It is too early.
When some exception ocurred later (eg. in ip_forward() when goto
sr_failed) we need the ip header be identical to the original one as
ICMP need it.
Add a field 'nexthop' in struct ip_options to save nexthop of LSRR
or SSRR option.
Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_sock.h')
| -rw-r--r-- | include/net/inet_sock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index b897d6e6d0a5..f941964a9931 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -31,6 +31,7 @@ /** struct ip_options - IP Options * * @faddr - Saved first hop address + * @nexthop - Saved nexthop address in LSRR and SSRR * @is_data - Options in __data, rather than skb * @is_strictroute - Strict source route * @srr_is_hit - Packet destination addr was our one @@ -41,6 +42,7 @@ */ struct ip_options { __be32 faddr; + __be32 nexthop; unsigned char optlen; unsigned char srr; unsigned char rr; |