#include <vnet/ip/format.h>
#include <vnet/ipip/ipip.h>
#include <vnet/nhrp/nhrp.h>
+#include <vnet/tunnel/tunnel_dp.h>
ipip_main_t ipip_main;
if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_SET_DF)
ip4_header_set_df (ip4);
ip4->checksum = ip4_header_checksum (ip4);
+
+ switch (link_type)
+ {
+ case VNET_LINK_IP6:
+ ip4->protocol = IP_PROTOCOL_IPV6;
+ break;
+ case VNET_LINK_IP4:
+ ip4->protocol = IP_PROTOCOL_IP_IN_IP;
+ break;
+ default:
+ break;
+ }
break;
case IPIP_TRANSPORT_IP6:
ip6->dst_address.as_u64[1] = dst->ip6.as_u64[1];
if (!(t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP))
ip6_set_dscp_network_order (ip6, t->dscp);
+
+ switch (link_type)
+ {
+ case VNET_LINK_IP6:
+ ip6->protocol = IP_PROTOCOL_IPV6;
+ break;
+ case VNET_LINK_IP4:
+ ip6->protocol = IP_PROTOCOL_IP_IN_IP;
+ break;
+ default:
+ break;
+ }
break;
}
return (rewrite);
}
static void
-ipip4_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
- const void *data)
+ipip64_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
+ const void *data)
{
tunnel_encap_decap_flags_t flags;
ip4_header_t *ip4;
ip4 = vlib_buffer_get_current (b);
ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
- switch (adj->ia_link)
- {
- case VNET_LINK_IP6:
- ip4->protocol = IP_PROTOCOL_IPV6;
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
- ip4_header_set_dscp (ip4,
- ip6_dscp_network_order ((ip6_header_t *) (ip4 +
- 1)));
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
- ip4_header_set_ecn (ip4,
- ip6_ecn_network_order ((ip6_header_t *) (ip4 +
- 1)));
- break;
+ tunnel_encap_fixup_6o4 (flags, ((ip6_header_t *) (ip4 + 1)), ip4);
- case VNET_LINK_IP4:
- ip4->protocol = IP_PROTOCOL_IP_IN_IP;
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
- ip4_header_set_dscp (ip4, ip4_header_get_dscp (ip4 + 1));
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
- ip4_header_set_ecn (ip4, ip4_header_get_ecn (ip4 + 1));
- if ((flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
- ip4_header_get_df (ip4 + 1))
- ip4_header_set_df (ip4);
- break;
+ ip4->checksum = ip4_header_checksum (ip4);
+}
- default:
- break;
- }
+static void
+ipip44_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
+ const void *data)
+{
+ tunnel_encap_decap_flags_t flags;
+ ip4_header_t *ip4;
+
+ flags = pointer_to_uword (data);
+
+ ip4 = vlib_buffer_get_current (b);
+ ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
+ tunnel_encap_fixup_4o4 (flags, ip4 + 1, ip4);
ip4->checksum = ip4_header_checksum (ip4);
}
static void
-ipip6_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
- const void *data)
+ipip46_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b,
+ const void *data)
{
tunnel_encap_decap_flags_t flags;
ip6_header_t *ip6;
ip6->payload_length =
clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) -
sizeof (*ip6));
- switch (adj->ia_link)
- {
- case VNET_LINK_IP6:
- ip6->protocol = IP_PROTOCOL_IPV6;
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
- ip6_set_dscp_network_order (ip6, ip6_dscp_network_order (ip6 + 1));
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
- ip6_set_ecn_network_order (ip6, ip6_ecn_network_order (ip6 + 1));
- break;
+ tunnel_encap_fixup_4o6 (flags, ((ip4_header_t *) (ip6 + 1)), ip6);
+}
- case VNET_LINK_IP4:
- ip6->protocol = IP_PROTOCOL_IP_IN_IP;
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
- ip6_set_dscp_network_order
- (ip6, ip4_header_get_dscp ((ip4_header_t *) (ip6 + 1)));
- if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
- ip6_set_ecn_network_order
- (ip6, ip4_header_get_ecn ((ip4_header_t *) (ip6 + 1)));
- break;
+static void
+ipip66_fixup (vlib_main_t * vm,
+ const ip_adjacency_t * adj, vlib_buffer_t * b, const void *data)
+{
+ tunnel_encap_decap_flags_t flags;
+ ip6_header_t *ip6;
- default:
- break;
- }
+ flags = pointer_to_uword (data);
+
+ /* Must set locally originated otherwise we're not allowed to
+ fragment the packet later */
+ b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+
+ ip6 = vlib_buffer_get_current (b);
+ ip6->payload_length =
+ clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) -
+ sizeof (*ip6));
+ tunnel_encap_fixup_6o6 (flags, ip6 + 1, ip6);
}
static void
}
}
+static adj_midchain_fixup_t
+ipip_get_fixup (const ipip_tunnel_t * t, vnet_link_t lt)
+{
+ if (t->transport == IPIP_TRANSPORT_IP6 && lt == VNET_LINK_IP6)
+ return (ipip66_fixup);
+ if (t->transport == IPIP_TRANSPORT_IP6 && lt == VNET_LINK_IP4)
+ return (ipip46_fixup);
+ if (t->transport == IPIP_TRANSPORT_IP4 && lt == VNET_LINK_IP6)
+ return (ipip64_fixup);
+ if (t->transport == IPIP_TRANSPORT_IP4 && lt == VNET_LINK_IP4)
+ return (ipip44_fixup);
+
+ ASSERT (0);
+ return (ipip44_fixup);
+}
+
void
ipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
{
- adj_midchain_fixup_t f;
ipip_tunnel_t *t;
adj_flags_t af;
if (!t)
return;
- f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
af = ADJ_FLAG_MIDCHAIN_IP_STACK;
if (VNET_LINK_ETHERNET == adj_get_link_type (ai))
af |= ADJ_FLAG_MIDCHAIN_NO_COUNT;
adj_nbr_midchain_update_rewrite
- (ai, f, uword_to_pointer (t->flags, void *), af,
+ (ai, ipip_get_fixup (t, adj_get_link_type (ai)),
+ uword_to_pointer (t->flags, void *), af,
ipip_build_rewrite (vnm, sw_if_index,
adj_get_link_type (ai), &t->tunnel_dst));
ipip_tunnel_stack (ai);
mipip_mk_complete_walk (adj_index_t ai, void *data)
{
mipip_walk_ctx_t *ctx = data;
- adj_midchain_fixup_t f;
-
- f = ctx->t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
adj_nbr_midchain_update_rewrite
- (ai, f, uword_to_pointer (ctx->t->flags, void *),
+ (ai, ipip_get_fixup (ctx->t, adj_get_link_type (ai)),
+ uword_to_pointer (ctx->t->flags, void *),
ADJ_FLAG_MIDCHAIN_IP_STACK, ipip_build_rewrite (vnet_get_main (),
ctx->t->sw_if_index,
adj_get_link_type (ai),
mipip_mk_incomplete_walk (adj_index_t ai, void *data)
{
ipip_tunnel_t *t = data;
- adj_midchain_fixup_t f;
- f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
-
- adj_nbr_midchain_update_rewrite (ai, f, NULL, ADJ_FLAG_NONE, NULL);
+ adj_nbr_midchain_update_rewrite
+ (ai, ipip_get_fixup (t, adj_get_link_type (ai)),
+ NULL, ADJ_FLAG_NONE, NULL);
adj_midchain_delegate_unstack (ai);
mipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
{
ipip_main_t *gm = &ipip_main;
- adj_midchain_fixup_t f;
ip_adjacency_t *adj;
nhrp_entry_t *ne;
ipip_tunnel_t *t;
adj = adj_get (ai);
ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
t = pool_elt_at_index (gm->tunnels, ti);
- f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
ne = nhrp_entry_find (sw_if_index, &adj->sub_type.nbr.next_hop);
{
// no NHRP entry to provide the next-hop
adj_nbr_midchain_update_rewrite
- (ai, f, uword_to_pointer (t->flags, void *), ADJ_FLAG_NONE, NULL);
+ (ai, ipip_get_fixup (t, adj_get_link_type (ai)),
+ uword_to_pointer (t->flags, void *), ADJ_FLAG_NONE, NULL);
return;
}
Code Review / vpp.git / blobdiff