diff options
| -rw-r--r-- | include/net/ip6_fib.h | 2 | ||||
| -rw-r--r-- | include/net/xfrm.h | 3 | ||||
| -rw-r--r-- | net/ipv4/xfrm4_policy.c | 7 | ||||
| -rw-r--r-- | net/ipv6/ip6_output.c | 4 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_policy.c | 17 | ||||
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 21 |
6 files changed, 51 insertions, 3 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 14830ed..d8d85b1 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -101,7 +101,7 @@ struct rt6_info atomic_t rt6i_ref; /* more non-fragment space at head required */ - unsigned short nfheader_len; + unsigned short rt6i_nfheader_len; u8 rt6i_protocol; diff --git a/include/net/xfrm.h b/include/net/xfrm.h index d6dae5a..eea1c32 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -242,6 +242,9 @@ struct xfrm_policy_afinfo { struct flowi *fl, int reverse); int (*get_tos)(struct flowi *fl); + int (*init_path)(struct xfrm_dst *path, + struct dst_entry *dst, + int nfheader_len); int (*fill_dst)(struct xfrm_dst *xdst, struct net_device *dev); }; diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index 5ccae3a..656345f 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -84,6 +84,12 @@ static int xfrm4_get_tos(struct flowi *fl) return fl->fl4_tos; } +static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst, + int nfheader_len) +{ + return 0; +} + static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev) { struct rtable *rt = (struct rtable *)xdst->route; @@ -251,6 +257,7 @@ static struct xfrm_policy_afinfo xfrm4_policy_afinfo = { .find_bundle = __xfrm4_find_bundle, .decode_session = _decode_session4, .get_tos = xfrm4_get_tos, + .init_path = xfrm4_init_path, .fill_dst = xfrm4_fill_dst, }; diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index d54da61..4686646 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 d26b7dc..cf373b4 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, }; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 8023a3c..521cb6e 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1266,6 +1266,23 @@ static inline struct xfrm_dst *xfrm_alloc_dst(int family) return xdst; } +static inline int xfrm_init_path(struct xfrm_dst *path, struct dst_entry *dst, + int nfheader_len) +{ + struct xfrm_policy_afinfo *afinfo = + xfrm_policy_get_afinfo(dst->ops->family); + int err; + + if (!afinfo) + return -EINVAL; + + err = afinfo->init_path(path, dst, nfheader_len); + + xfrm_policy_put_afinfo(afinfo); + + return err; +} + static inline int xfrm_fill_dst(struct xfrm_dst *xdst, struct net_device *dev) { struct xfrm_policy_afinfo *afinfo = @@ -1298,6 +1315,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, int i = 0; int err; int header_len = 0; + int nfheader_len = 0; int trailer_len = 0; int tos; int family = policy->selector.family; @@ -1352,6 +1370,8 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, dst_prev = dst1; header_len += xfrm[i]->props.header_len; + if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT) + nfheader_len += xfrm[i]->props.header_len; trailer_len += xfrm[i]->props.trailer_len; } @@ -1366,6 +1386,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, /* Copy neighbout for reachability confirmation */ dst0->neighbour = neigh_clone(dst->neighbour); + xfrm_init_path((struct xfrm_dst *)dst0, dst, nfheader_len); xfrm_init_pmtu(dst_prev); for (dst_prev = dst0; dst_prev != dst; dst_prev = dst_prev->child) { |