diff options
| author | Masahide NAKAMURA <nakam@linux-ipv6.org> | 2007-12-20 20:41:12 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:59:36 -0800 |
| commit | a1b051405bc16222d92c73b0c26d65b333a154ee (patch) | |
| tree | 2950e34bbb51838f8da3e1d03c8ee608d3b56f55 /net/ipv6 | |
| parent | bd515c3e48ececd774eb3128e81b669dbbd32637 (diff) | |
[XFRM] IPv6: Fix dst/routing check at transformation.
IPv6 specific thing is wrongly removed from transformation at net-2.6.25.
This patch recovers it with current design.
o Update "path" of xfrm_dst since IPv6 transformation should
care about routing changes. It is required by MIPv6 and
off-link destined IPsec.
o Rename nfheader_len which is for non-fragment transformation used by
MIPv6 to rt6i_nfheader_len as IPv6 name space.
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_output.c | 4 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_policy.c | 17 |
2 files changed, 19 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index d54da616e3a..4686646058d 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1126,7 +1126,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, sk->sk_sndmsg_page = NULL; sk->sk_sndmsg_off = 0; exthdrlen = rt->u.dst.header_len + (opt ? opt->opt_flen : 0) - - rt->nfheader_len; + rt->rt6i_nfheader_len; length += exthdrlen; transhdrlen += exthdrlen; } else { @@ -1141,7 +1141,7 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, hh_len = LL_RESERVED_SPACE(rt->u.dst.dev); - fragheaderlen = sizeof(struct ipv6hdr) + rt->nfheader_len + + fragheaderlen = sizeof(struct ipv6hdr) + rt->rt6i_nfheader_len + (opt ? opt->opt_nflen : 0); maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen - sizeof(struct frag_hdr); diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index d26b7dc3f33..cf373b46a1b 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -98,6 +98,20 @@ static int xfrm6_get_tos(struct flowi *fl) return 0; } +static int xfrm6_init_path(struct xfrm_dst *path, struct dst_entry *dst, + int nfheader_len) +{ + if (dst->ops->family == AF_INET6) { + struct rt6_info *rt = (struct rt6_info*)dst; + if (rt->rt6i_node) + path->path_cookie = rt->rt6i_node->fn_sernum; + } + + path->u.rt6.rt6i_nfheader_len = nfheader_len; + + return 0; +} + static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev) { struct rt6_info *rt = (struct rt6_info*)xdst->route; @@ -115,6 +129,8 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev) RTF_LOCAL); xdst->u.rt6.rt6i_metric = rt->rt6i_metric; xdst->u.rt6.rt6i_node = rt->rt6i_node; + if (rt->rt6i_node) + xdst->route_cookie = rt->rt6i_node->fn_sernum; xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway; xdst->u.rt6.rt6i_dst = rt->rt6i_dst; xdst->u.rt6.rt6i_src = rt->rt6i_src; @@ -266,6 +282,7 @@ static struct xfrm_policy_afinfo xfrm6_policy_afinfo = { .find_bundle = __xfrm6_find_bundle, .decode_session = _decode_session6, .get_tos = xfrm6_get_tos, + .init_path = xfrm6_init_path, .fill_dst = xfrm6_fill_dst, }; |