#include <vnet/ip/format.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
+#include <vnet/dpo/receive_dpo.h>
/**
* @file
.build_rewrite = default_build_rewrite,
};
+static void
+vxlan_tunnel_restack_dpo(vxlan_tunnel_t * t)
+{
+ dpo_id_t dpo = DPO_INVALID;
+ u32 encap_index = ip46_address_is_ip4(&t->dst) ?
+ vxlan4_encap_node.index : vxlan6_encap_node.index;
+ fib_forward_chain_type_t forw_type = ip46_address_is_ip4(&t->dst) ?
+ FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6;
+
+ fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
+ dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
+ dpo_reset(&dpo);
+}
static vxlan_tunnel_t *
vxlan_tunnel_from_fib_node (fib_node_t *node)
vxlan_tunnel_back_walk (fib_node_t *node,
fib_node_back_walk_ctx_t *ctx)
{
- vxlan_tunnel_t *t = vxlan_tunnel_from_fib_node(node);
- dpo_id_t dpo = DPO_INVALID;
-
- if (ip46_address_is_ip4(&t->dst)) {
- fib_entry_contribute_forwarding
- (t->fib_entry_index, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, &dpo);
- dpo_stack_from_node
- (vxlan4_encap_node.index, &t->next_dpo, &dpo);
- } else {
- fib_entry_contribute_forwarding
- (t->fib_entry_index, FIB_FORW_CHAIN_TYPE_UNICAST_IP6, &dpo);
- dpo_stack_from_node
- (vxlan6_encap_node.index, &t->next_dpo, &dpo);
- }
- dpo_reset(&dpo);
-
+ vxlan_tunnel_restack_dpo(vxlan_tunnel_from_fib_node(node));
return (FIB_NODE_BACK_WALK_CONTINUE);
}
#define foreach_copy_field \
_(vni) \
-_(encap_fib_index)
-
-#define foreach_copy_ipv4 { \
- _(src.ip4.as_u32) \
- _(dst.ip4.as_u32) \
-}
-
-#define foreach_copy_ipv6 { \
- _(src.ip6.as_u64[0]) \
- _(src.ip6.as_u64[1]) \
- _(dst.ip6.as_u64[0]) \
- _(dst.ip6.as_u64[1]) \
-}
+_(mcast_sw_if_index) \
+_(encap_fib_index) \
+_(src) \
+_(dst)
static int vxlan4_rewrite (vxlan_tunnel_t * t)
{
/* copy from arg structure */
#define _(x) t->x = a->x;
foreach_copy_field;
- if (!is_ip6) foreach_copy_ipv4
- else foreach_copy_ipv6
#undef _
/* copy the key */
vnet_sw_interface_set_flags (vnm, sw_if_index,
VNET_SW_INTERFACE_FLAG_ADMIN_UP);
- /*
- * source the FIB entry for the tunnel's destination
- * and become a child thereof. The tunnel will then get poked
- * when the forwarding for the entry updates, and the tunnel can
- * re-stack accordingly
- */
fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL);
- if (!is_ip6)
- {
- dpo_id_t dpo = DPO_INVALID;
- const fib_prefix_t tun_dst_pfx =
- {
- .fp_len = 32,
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_addr =
- {
- .ip4 = t->dst.ip4,
- }
- };
-
- t->fib_entry_index = fib_table_entry_special_add
- (t->encap_fib_index, &tun_dst_pfx,
- FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE, ADJ_INDEX_INVALID);
- t->sibling_index = fib_entry_child_add
- (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, t - vxm->tunnels);
- fib_entry_contribute_forwarding
- (t->fib_entry_index, FIB_FORW_CHAIN_TYPE_UNICAST_IP4, &dpo);
- dpo_stack_from_node (vxlan4_encap_node.index, &t->next_dpo, &dpo);
- dpo_reset(&dpo);
-
- /* Set vxlan tunnel output node to ip4 version */
- hi->output_node_index = vxlan4_encap_node.index;
- }
- else
- {
- dpo_id_t dpo = DPO_INVALID;
- const fib_prefix_t tun_dst_pfx =
- {
- .fp_len = 128,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_addr =
- {
- .ip6 = t->dst.ip6,
- }
- };
-
- t->fib_entry_index = fib_table_entry_special_add
- (t->encap_fib_index, &tun_dst_pfx,
- FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE, ADJ_INDEX_INVALID);
- t->sibling_index = fib_entry_child_add
- (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, t - vxm->tunnels);
- fib_entry_contribute_forwarding
- (t->fib_entry_index, FIB_FORW_CHAIN_TYPE_UNICAST_IP6, &dpo);
- dpo_stack_from_node
- (vxlan6_encap_node.index, &t->next_dpo, &dpo);
- dpo_reset(&dpo);
-
- /* Set vxlan tunnel output node to ip6 version */
- hi->output_node_index = vxlan6_encap_node.index;
- }
+ fib_prefix_t tun_dst_pfx;
+ u32 encap_index = !is_ip6 ?
+ vxlan4_encap_node.index : vxlan6_encap_node.index;
+ vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL;
+
+ fib_prefix_from_ip46_addr(&t->dst, &tun_dst_pfx);
+ if (ip46_address_is_multicast(&t->dst))
+ {
+ fib_protocol_t fp;
+ u8 mcast_mac[6];
+ if (!is_ip6) {
+ ip4_multicast_ethernet_address(mcast_mac, &t->dst.ip4);
+ fp = FIB_PROTOCOL_IP4;
+ } else {
+ ip6_multicast_ethernet_address(mcast_mac, t->dst.ip6.as_u32[0]);
+ fp = FIB_PROTOCOL_IP6;
+ }
+ t->mcast_adj_index = adj_rewrite_add_and_lock
+ (fp, fib_proto_to_link(fp), t->mcast_sw_if_index, mcast_mac);
+
+ flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
+
+ /* Stack mcast dst mac addr rewrite on encap */
+ dpo_proto_t dproto = fib_proto_to_dpo(fp);
+ dpo_id_t dpo = DPO_INVALID;
+
+ dpo_set (&dpo, DPO_ADJACENCY, dproto, t->mcast_adj_index);
+ dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
+ dpo_reset(&dpo);
+
+ /* Add local mcast adj. */
+ receive_dpo_add_or_lock(dproto, ~0, NULL, &dpo);
+ t->fib_entry_index = fib_table_entry_special_dpo_add
+ (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_SPECIAL, FIB_ENTRY_FLAG_NONE, &dpo);
+ dpo_reset(&dpo);
+ } else {
+ /*
+ * source the FIB entry for the tunnel's destination
+ * and become a child thereof. The tunnel will then get poked
+ * when the forwarding for the entry updates, and the tunnel can
+ * re-stack accordingly
+ */
+ t->fib_entry_index = fib_table_entry_special_add
+ (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE, ADJ_INDEX_INVALID);
+ t->sibling_index = fib_entry_child_add
+ (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, t - vxm->tunnels);
+ vxlan_tunnel_restack_dpo(t);
+ }
+ /* Set vxlan tunnel output node */
+ hi->output_node_index = encap_index;
+
+ vnet_get_sw_interface (vnet_get_main(), sw_if_index)->flood_class = flood_class;
}
else
{
vxm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;
- fib_entry_child_remove(t->fib_entry_index, t->sibling_index);
- fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_RR);
+ if (ip46_address_is_multicast(&t->dst))
+ {
+ adj_unlock(t->mcast_adj_index);
+ fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_SPECIAL);
+ }
+ else
+ {
+ fib_entry_child_remove(t->fib_entry_index, t->sibling_index);
+ fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_RR);
+ }
fib_node_deinit(&t->node);
if (!is_ip6)
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, * line_input = &_line_input;
- ip46_address_t src, dst;
+ ip46_address_t src , dst;
u8 is_add = 1;
u8 src_set = 0;
u8 dst_set = 0;
+ u8 grp_set = 0;
u8 ipv4_set = 0;
u8 ipv6_set = 0;
u32 encap_fib_index = 0;
+ u32 mcast_sw_if_index = ~0;
u32 decap_next_index = ~0;
u32 vni = 0;
u32 tmp;
int rv;
vnet_vxlan_add_del_tunnel_args_t _a, * a = &_a;
- u32 sw_if_index;
-
+ u32 tunnel_sw_if_index;
+
+ /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
+ memset(&src, 0, sizeof src);
+ memset(&dst, 0, sizeof dst);
+
/* Get a line of input. */
if (! unformat_user (input, unformat_line_input, line_input))
return 0;
dst_set = 1;
ipv6_set = 1;
}
+ else if (unformat (line_input, "group %U %U",
+ unformat_ip4_address, &dst.ip4,
+ unformat_vnet_sw_interface,
+ vnet_get_main(), &mcast_sw_if_index))
+ {
+ grp_set = dst_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "group %U %U",
+ unformat_ip6_address, &dst.ip6,
+ unformat_vnet_sw_interface,
+ vnet_get_main(), &mcast_sw_if_index))
+ {
+ grp_set = dst_set = 1;
+ ipv6_set = 1;
+ }
else if (unformat (line_input, "encap-vrf-id %d", &tmp))
{
if (ipv6_set)
if (dst_set == 0)
return clib_error_return (0, "tunnel dst address not specified");
+ if (grp_set && !ip46_address_is_multicast(&dst))
+ return clib_error_return (0, "tunnel group address not multicast");
+
+ if (grp_set && mcast_sw_if_index == ~0)
+ return clib_error_return (0, "tunnel nonexistent multicast device");
+
if (ipv4_set && ipv6_set)
return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
- if ((ipv4_set && memcmp(&src.ip4, &dst.ip4, sizeof(src.ip4)) == 0) ||
- (ipv6_set && memcmp(&src.ip6, &dst.ip6, sizeof(src.ip6)) == 0))
+ if (ip46_address_cmp(&src, &dst) == 0)
return clib_error_return (0, "src and dst addresses are identical");
if (vni == 0)
#define _(x) a->x = x;
foreach_copy_field;
- if (ipv4_set) foreach_copy_ipv4
- else foreach_copy_ipv6
#undef _
- rv = vnet_vxlan_add_del_tunnel (a, &sw_if_index);
+ rv = vnet_vxlan_add_del_tunnel (a, &tunnel_sw_if_index);
switch(rv)
{
case 0:
if (is_add)
vlib_cli_output(vm, "%U\n", format_vnet_sw_if_index_name,
- vnet_get_main(), sw_if_index);
+ vnet_get_main(), tunnel_sw_if_index);
break;
case VNET_API_ERROR_TUNNEL_EXIST:
VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = {
.path = "create vxlan tunnel",
.short_help =
- "create vxlan tunnel src <local-vtep-addr> dst <remote-vtep-addr> vni <nn>"
+ "create vxlan tunnel src <local-vtep-addr>"
+ " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
" [encap-vrf-id <nn>]",
.function = vxlan_add_del_tunnel_command_fn,
};
Code Review / vpp.git / blobdiff