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| author | Masahide NAKAMURA <nakam@linux-ipv6.org> | 2006-08-24 05:11:50 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-23 02:06:41 +0400 |
| commit | 1b5c229987dc4d0c92a38fac0cde2aeec08cd775 (patch) | |
| tree | 5726243af6aa7194f1ed65e0340539e1ee5c6a42 /include/net/dst.h | |
| parent | 99505a843673faeae962a8cde128c7c034ba6b5e (diff) | |
| download | linux-1b5c229987dc4d0c92a38fac0cde2aeec08cd775.tar.xz | |
[XFRM] STATE: Support non-fragment outbound transformation headers.
For originated outbound IPv6 packets which will fragment, ip6_append_data()
should know length of extension headers before sending them and
the length is carried by dst_entry.
IPv6 IPsec headers fragment then transformation was
designed to place all headers after fragment header.
OTOH Mobile IPv6 extension headers do not fragment then
it is a good idea to make dst_entry have non-fragment length to tell it
to ip6_append_data().
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 36d54fc248b0..a8d825f90305 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -54,6 +54,7 @@ struct dst_entry unsigned long expires; unsigned short header_len; /* more space at head required */ + unsigned short nfheader_len; /* more non-fragment space at head required */ unsigned short trailer_len; /* space to reserve at tail */ u32 metrics[RTAX_MAX]; |