return dst;
}
-/* Allocate chain of dst_entry's, attach known xfrm's, calculate
- * all the metrics... Shortly, bundle a bundle.
- */
-
-static int
-__xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int nx,
- struct flowi *fl, struct dst_entry **dst_p)
+static int xfrm6_get_tos(struct flowi *fl)
{
- struct dst_entry *dst, *dst_prev;
- struct rt6_info *rt0 = (struct rt6_info*)(*dst_p);
- struct rt6_info *rt = rt0;
- int i;
- int err;
- int header_len = 0;
- int trailer_len = 0;
-
- dst = dst_prev = NULL;
- dst_hold(&rt->u.dst);
-
- for (i = 0; i < nx; i++) {
- struct dst_entry *dst1 = dst_alloc(&xfrm6_dst_ops);
- struct xfrm_dst *xdst;
+ return 0;
+}
- if (unlikely(dst1 == NULL)) {
- err = -ENOBUFS;
- dst_release(&rt->u.dst);
- goto error;
- }
+static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev)
+{
+ struct rt6_info *rt = (struct rt6_info*)xdst->route;
- if (!dst)
- dst = dst1;
- else {
- dst_prev->child = dst1;
- dst1->flags |= DST_NOHASH;
- dst_clone(dst1);
- }
+ xdst->u.dst.dev = dev;
+ dev_hold(dev);
- xdst = (struct xfrm_dst *)dst1;
- xdst->route = &rt->u.dst;
- xdst->genid = xfrm[i]->genid;
- if (rt->rt6i_node)
- xdst->route_cookie = rt->rt6i_node->fn_sernum;
-
- dst1->next = dst_prev;
- dst_prev = dst1;
-
- if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT)
- ((struct rt6_info *)dst)->nfheader_len +=
- xfrm[i]->props.header_len;
- header_len += xfrm[i]->props.header_len;
- trailer_len += xfrm[i]->props.trailer_len;
-
- if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
- dst1 = xfrm_dst_lookup(xfrm[i], 0);
- err = PTR_ERR(dst1);
- if (IS_ERR(dst1))
- goto error;
-
- rt = (struct rt6_info *)dst1;
- } else
- dst_hold(&rt->u.dst);
- }
+ xdst->u.rt6.rt6i_idev = in6_dev_get(rt->u.dst.dev);
+ if (!xdst->u.rt6.rt6i_idev)
+ return -ENODEV;
- dst_prev->child = &rt->u.dst;
- dst->path = &rt->u.dst;
-
- /* Copy neighbour for reachability confirmation */
- dst->neighbour = neigh_clone(rt->u.dst.neighbour);
-
- if (rt->rt6i_node)
- ((struct xfrm_dst *)dst)->path_cookie = rt->rt6i_node->fn_sernum;
-
- *dst_p = dst;
- dst = dst_prev;
-
- dst_prev = *dst_p;
- i = 0;
- err = -ENODEV;
- for (; dst_prev != &rt->u.dst; dst_prev = dst_prev->child) {
- struct xfrm_dst *x = (struct xfrm_dst*)dst_prev;
-
- dst_prev->xfrm = xfrm[i++];
- dst_prev->dev = rt->u.dst.dev;
- if (!rt->u.dst.dev)
- goto error;
- dev_hold(rt->u.dst.dev);
-
- x->u.rt6.rt6i_idev = in6_dev_get(rt->u.dst.dev);
- if (!x->u.rt6.rt6i_idev)
- goto error;
-
- dst_prev->obsolete = -1;
- dst_prev->flags |= DST_HOST;
- dst_prev->lastuse = jiffies;
- dst_prev->header_len = header_len;
- dst_prev->trailer_len = trailer_len;
- memcpy(&dst_prev->metrics, &x->route->metrics, sizeof(dst_prev->metrics));
-
- dst_prev->input = dst_discard;
- dst_prev->output = dst_prev->xfrm->outer_mode->afinfo->output;
- /* Sheit... I remember I did this right. Apparently,
- * it was magically lost, so this code needs audit */
- x->u.rt6.rt6i_flags = rt0->rt6i_flags&(RTF_ANYCAST|RTF_LOCAL);
- x->u.rt6.rt6i_metric = rt0->rt6i_metric;
- x->u.rt6.rt6i_node = rt0->rt6i_node;
- x->u.rt6.rt6i_gateway = rt0->rt6i_gateway;
- memcpy(&x->u.rt6.rt6i_gateway, &rt0->rt6i_gateway, sizeof(x->u.rt6.rt6i_gateway));
- x->u.rt6.rt6i_dst = rt0->rt6i_dst;
- x->u.rt6.rt6i_src = rt0->rt6i_src;
- header_len -= x->u.dst.xfrm->props.header_len;
- trailer_len -= x->u.dst.xfrm->props.trailer_len;
- }
+ /* Sheit... I remember I did this right. Apparently,
+ * it was magically lost, so this code needs audit */
+ xdst->u.rt6.rt6i_flags = rt->rt6i_flags & (RTF_ANYCAST |
+ RTF_LOCAL);
+ xdst->u.rt6.rt6i_metric = rt->rt6i_metric;
+ xdst->u.rt6.rt6i_node = rt->rt6i_node;
+ xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway;
+ xdst->u.rt6.rt6i_dst = rt->rt6i_dst;
+ xdst->u.rt6.rt6i_src = rt->rt6i_src;
- xfrm_init_pmtu(dst);
return 0;
-
-error:
- if (dst)
- dst_free(dst);
- return err;
}
static inline void
-_decode_session6(struct sk_buff *skb, struct flowi *fl)
+_decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
{
u16 offset = skb_network_header_len(skb);
struct ipv6hdr *hdr = ipv6_hdr(skb);
u8 nexthdr = nh[IP6CB(skb)->nhoff];
memset(fl, 0, sizeof(struct flowi));
- ipv6_addr_copy(&fl->fl6_dst, &hdr->daddr);
- ipv6_addr_copy(&fl->fl6_src, &hdr->saddr);
+ ipv6_addr_copy(&fl->fl6_dst, reverse ? &hdr->saddr : &hdr->daddr);
+ ipv6_addr_copy(&fl->fl6_src, reverse ? &hdr->daddr : &hdr->saddr);
while (pskb_may_pull(skb, nh + offset + 1 - skb->data)) {
nh = skb_network_header(skb);
if (pskb_may_pull(skb, nh + offset + 4 - skb->data)) {
__be16 *ports = (__be16 *)exthdr;
- fl->fl_ip_sport = ports[0];
- fl->fl_ip_dport = ports[1];
+ fl->fl_ip_sport = ports[!!reverse];
+ fl->fl_ip_dport = ports[!reverse];
}
fl->proto = nexthdr;
return;
xdst = (struct xfrm_dst *)dst;
if (xdst->u.rt6.rt6i_idev->dev == dev) {
- struct inet6_dev *loopback_idev = in6_dev_get(init_net.loopback_dev);
+ struct inet6_dev *loopback_idev =
+ in6_dev_get(dev->nd_net->loopback_dev);
BUG_ON(!loopback_idev);
do {
.update_pmtu = xfrm6_update_pmtu,
.destroy = xfrm6_dst_destroy,
.ifdown = xfrm6_dst_ifdown,
+ .local_out = __ip6_local_out,
.gc_thresh = 1024,
.entry_size = sizeof(struct xfrm_dst),
};
.dst_lookup = xfrm6_dst_lookup,
.get_saddr = xfrm6_get_saddr,
.find_bundle = __xfrm6_find_bundle,
- .bundle_create = __xfrm6_bundle_create,
.decode_session = _decode_session6,
+ .get_tos = xfrm6_get_tos,
+ .fill_dst = xfrm6_fill_dst,
};
-static void __init xfrm6_policy_init(void)
+static int __init xfrm6_policy_init(void)
{
- xfrm_policy_register_afinfo(&xfrm6_policy_afinfo);
+ return xfrm_policy_register_afinfo(&xfrm6_policy_afinfo);
}
static void xfrm6_policy_fini(void)
xfrm_policy_unregister_afinfo(&xfrm6_policy_afinfo);
}
-void __init xfrm6_init(void)
+int __init xfrm6_init(void)
{
- xfrm6_policy_init();
- xfrm6_state_init();
+ int ret;
+
+ ret = xfrm6_policy_init();
+ if (ret)
+ goto out;
+
+ ret = xfrm6_state_init();
+ if (ret)
+ goto out_policy;
+out:
+ return ret;
+out_policy:
+ xfrm6_policy_fini();
+ goto out;
}
void xfrm6_fini(void)
projects / ~andy / linux / blobdiff