if (PREDICT_FALSE
((ip0->protocol == IP_PROTOCOL_UDP) &&
(clib_net_to_host_u16 (udp_hdr0->dst_port) ==
- UDP_DST_PORT_vxlan_gpe)))
+ UDP_DST_PORT_VXLAN_GPE)))
{
/* Check the iOAM header */
FIB_NODE_TYPE_GRE_TUNNEL,
FIB_NODE_TYPE_VXLAN_TUNNEL,
FIB_NODE_TYPE_MAP_E,
+ FIB_NODE_TYPE_VXLAN_GPE_TUNNEL,
/**
* Marker. New types before this one. leave the test last.
*/
[FIB_NODE_TYPE_GRE_TUNNEL] = "gre-tunnel", \
[FIB_NODE_TYPE_VXLAN_TUNNEL] = "vxlan-tunnel", \
[FIB_NODE_TYPE_MAP_E] = "map-e", \
+ [FIB_NODE_TYPE_VXLAN_GPE_TUNNEL] = "vxlan-gpe-tunnel", \
}
/**
/**
* An node in the FIB graph
*
- * Objects in the FIB form a graph.
+ * Objects in the FIB form a graph.
*/
typedef struct fib_node_t_ {
#if CLIB_DEBUG > 0
MFIB_SOURCE_SRv6,
MFIB_SOURCE_DEFAULT_ROUTE,
MFIB_SOURCE_GTPU,
+ MFIB_SOURCE_VXLAN_GPE,
} mfib_source_t;
#define MFIB_SOURCE_NAMES { \
[MFIB_SOURCE_SRv6] = "SRv6", \
[MFIB_SOURCE_DEFAULT_ROUTE] = "Default Route", \
[MFIB_SOURCE_GTPU] = "GTPU", \
+ [MFIB_SOURCE_VXLAN_GPE] = "VXLAN-GPE", \
}
/**
_ (4739, ipfix) \
_ (4789, vxlan) \
_ (4789, vxlan6) \
-_ (4790, vxlan_gpe) \
+_ (4790, VXLAN_GPE) \
_ (6633, vpath_3)
_ (3785, bfd_echo6) \
_ (4341, lisp_gpe6) \
_ (4342, lisp_cp6) \
-_ (4790, vxlan6_gpe) \
+_ (4790, VXLAN6_GPE) \
_ (6633, vpath6_3)
typedef enum
u8 is_ip4)
{
u32 n_left_from, next_index, *from, *to_next;
- vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
- vnet_main_t * vnm = ngm->vnet_main;
+ vxlan_gpe_main_t * nngm = &vxlan_gpe_main;
+ vnet_main_t * vnm = nngm->vnet_main;
vnet_interface_main_t * im = &vnm->interface_main;
u32 last_tunnel_index = ~0;
vxlan4_gpe_tunnel_key_t last_key4;
{
next0 =
(iuvn4_0->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn4_0->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn4_0->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
next1 =
(iuvn4_1->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn4_1->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn4_1->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
key4_0.local = iuvn4_0->ip4.dst_address.as_u32;
if (PREDICT_FALSE((key4_0.as_u64[0] != last_key4.as_u64[0])
|| (key4_0.as_u64[1] != last_key4.as_u64[1])))
{
- p0 = hash_get_mem(ngm->vxlan4_gpe_tunnel_by_key, &key4_0);
+ p0 = hash_get_mem(nngm->vxlan4_gpe_tunnel_by_key, &key4_0);
if (p0 == 0)
{
{
next0 =
(iuvn6_0->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn6_0->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn6_0->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
next1 =
(iuvn6_1->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn6_1->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn6_1->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
key6_0.local.as_u64[0] = iuvn6_0->ip6.dst_address.as_u64[0];
/* Processing for key6_0 */
if (PREDICT_FALSE(memcmp (&key6_0, &last_key6, sizeof(last_key6)) != 0))
{
- p0 = hash_get_mem(ngm->vxlan6_gpe_tunnel_by_key, &key6_0);
+ p0 = hash_get_mem(nngm->vxlan6_gpe_tunnel_by_key, &key6_0);
if (p0 == 0)
{
tunnel_index0 = last_tunnel_index;
}
- t0 = pool_elt_at_index(ngm->tunnels, tunnel_index0);
+ t0 = pool_elt_at_index(nngm->tunnels, tunnel_index0);
sw_if_index0 = t0->sw_if_index;
(key4_1.as_u64[0] != last_key4.as_u64[0])
|| (key4_1.as_u64[1] != last_key4.as_u64[1])))
{
- p1 = hash_get_mem(ngm->vxlan4_gpe_tunnel_by_key, &key4_1);
+ p1 = hash_get_mem(nngm->vxlan4_gpe_tunnel_by_key, &key4_1);
if (p1 == 0)
{
/* Processing for key6_1 */
if (PREDICT_FALSE(memcmp (&key6_1, &last_key6, sizeof(last_key6)) != 0))
{
- p1 = hash_get_mem(ngm->vxlan6_gpe_tunnel_by_key, &key6_1);
+ p1 = hash_get_mem(nngm->vxlan6_gpe_tunnel_by_key, &key6_1);
if (p1 == 0)
{
tunnel_index1 = last_tunnel_index;
}
- t1 = pool_elt_at_index(ngm->tunnels, tunnel_index1);
+ t1 = pool_elt_at_index(nngm->tunnels, tunnel_index1);
sw_if_index1 = t1->sw_if_index;
len1 = vlib_buffer_length_in_chain (vm, b1);
{
next0 =
(iuvn4_0->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn4_0->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn4_0->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
key4_0.local = iuvn4_0->ip4.dst_address.as_u32;
(key4_0.as_u64[0] != last_key4.as_u64[0])
|| (key4_0.as_u64[1] != last_key4.as_u64[1])))
{
- p0 = hash_get_mem(ngm->vxlan4_gpe_tunnel_by_key, &key4_0);
+ p0 = hash_get_mem(nngm->vxlan4_gpe_tunnel_by_key, &key4_0);
if (p0 == 0)
{
{
next0 =
(iuvn6_0->vxlan.protocol < VXLAN_GPE_PROTOCOL_MAX)?
- ngm->decap_next_node_list[iuvn6_0->vxlan.protocol]: \
+ nngm->decap_next_node_list[iuvn6_0->vxlan.protocol]: \
VXLAN_GPE_INPUT_NEXT_DROP;
key6_0.local.as_u64[0] = iuvn6_0->ip6.dst_address.as_u64[0];
/* Processing for key6_0 */
if (PREDICT_FALSE(memcmp (&key6_0, &last_key6, sizeof(last_key6)) != 0))
{
- p0 = hash_get_mem(ngm->vxlan6_gpe_tunnel_by_key, &key6_0);
+ p0 = hash_get_mem(nngm->vxlan6_gpe_tunnel_by_key, &key6_0);
if (p0 == 0)
{
tunnel_index0 = last_tunnel_index;
}
- t0 = pool_elt_at_index(ngm->tunnels, tunnel_index0);
+ t0 = pool_elt_at_index(nngm->tunnels, tunnel_index0);
sw_if_index0 = t0->sw_if_index;
};
VLIB_NODE_FUNCTION_MULTIARCH (vxlan6_gpe_input_node, vxlan6_gpe_input);
+typedef enum {
+ IP_VXLAN_BYPASS_NEXT_DROP,
+ IP_VXLAN_BYPASS_NEXT_VXLAN,
+ IP_VXLAN_BYPASS_N_NEXT,
+} ip_vxan_bypass_next_t;
+
+always_inline uword
+ip_vxlan_gpe_bypass_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame,
+ u32 is_ip4)
+{
+ vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
+ u32 * from, * to_next, n_left_from, n_left_to_next, next_index;
+ vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip4_input_node.index);
+ ip4_address_t addr4; /* last IPv4 address matching a local VTEP address */
+ ip6_address_t addr6; /* last IPv6 address matching a local VTEP address */
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ ip4_forward_next_trace (vm, node, frame, VLIB_TX);
+
+ if (is_ip4) addr4.data_u32 = ~0;
+ else ip6_address_set_zero (&addr6);
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ vlib_buffer_t * b0, * b1;
+ ip4_header_t * ip40, * ip41;
+ ip6_header_t * ip60, * ip61;
+ udp_header_t * udp0, * udp1;
+ u32 bi0, ip_len0, udp_len0, flags0, next0;
+ u32 bi1, ip_len1, udp_len1, flags1, next1;
+ i32 len_diff0, len_diff1;
+ u8 error0, good_udp0, proto0;
+ u8 error1, good_udp1, proto1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t * p2, * p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ CLIB_PREFETCH (p2->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
+ }
+
+ bi0 = to_next[0] = from[0];
+ bi1 = to_next[1] = from[1];
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+ if (is_ip4)
+ {
+ ip40 = vlib_buffer_get_current (b0);
+ ip41 = vlib_buffer_get_current (b1);
+ }
+ else
+ {
+ ip60 = vlib_buffer_get_current (b0);
+ ip61 = vlib_buffer_get_current (b1);
+ }
+
+ /* Setup packet for next IP feature */
+ vnet_feature_next(vnet_buffer(b0)->sw_if_index[VLIB_RX], &next0, b0);
+ vnet_feature_next(vnet_buffer(b1)->sw_if_index[VLIB_RX], &next1, b1);
+
+ if (is_ip4)
+ {
+ proto0 = ip40->protocol;
+ proto1 = ip41->protocol;
+ }
+ else
+ {
+ proto0 = ip60->protocol;
+ proto1 = ip61->protocol;
+ }
+
+ /* Process packet 0 */
+ if (proto0 != IP_PROTOCOL_UDP)
+ goto exit0; /* not UDP packet */
+
+ if (is_ip4)
+ udp0 = ip4_next_header (ip40);
+ else
+ udp0 = ip6_next_header (ip60);
+
+ if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE))
+ goto exit0; /* not VXLAN packet */
+
+ /* Validate DIP against VTEPs*/
+ if (is_ip4)
+ {
+ if (addr4.as_u32 != ip40->dst_address.as_u32)
+ {
+ if (!hash_get (ngm->vtep4, ip40->dst_address.as_u32))
+ goto exit0; /* no local VTEP for VXLAN packet */
+ addr4 = ip40->dst_address;
+ }
+ }
+ else
+ {
+ if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
+ {
+ if (!hash_get_mem (ngm->vtep6, &ip60->dst_address))
+ goto exit0; /* no local VTEP for VXLAN packet */
+ addr6 = ip60->dst_address;
+ }
+ }
+
+ flags0 = b0->flags;
+ good_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+
+ /* Don't verify UDP checksum for packets with explicit zero checksum. */
+ good_udp0 |= udp0->checksum == 0;
+
+ /* Verify UDP length */
+ if (is_ip4)
+ ip_len0 = clib_net_to_host_u16 (ip40->length);
+ else
+ ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
+ udp_len0 = clib_net_to_host_u16 (udp0->length);
+ len_diff0 = ip_len0 - udp_len0;
+
+ /* Verify UDP checksum */
+ if (PREDICT_FALSE (!good_udp0))
+ {
+ if ((flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED) == 0)
+ {
+ if (is_ip4)
+ flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
+ else
+ flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
+ good_udp0 =
+ (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+ }
+ }
+
+ if (is_ip4)
+ {
+ error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
+ error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
+ }
+ else
+ {
+ error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
+ error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
+ }
+
+ next0 = error0 ?
+ IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
+ b0->error = error0 ? error_node->errors[error0] : 0;
+
+ /* vxlan_gpe-input node expect current at VXLAN header */
+ if (is_ip4)
+ vlib_buffer_advance (b0, sizeof(ip4_header_t)+sizeof(udp_header_t));
+ else
+ vlib_buffer_advance (b0, sizeof(ip6_header_t)+sizeof(udp_header_t));
+
+ exit0:
+ /* Process packet 1 */
+ if (proto1 != IP_PROTOCOL_UDP)
+ goto exit1; /* not UDP packet */
+
+ if (is_ip4)
+ udp1 = ip4_next_header (ip41);
+ else
+ udp1 = ip6_next_header (ip61);
+
+ if (udp1->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE))
+ goto exit1; /* not VXLAN packet */
+
+ /* Validate DIP against VTEPs*/
+ if (is_ip4)
+ {
+ if (addr4.as_u32 != ip41->dst_address.as_u32)
+ {
+ if (!hash_get (ngm->vtep4, ip41->dst_address.as_u32))
+ goto exit1; /* no local VTEP for VXLAN packet */
+ addr4 = ip41->dst_address;
+ }
+ }
+ else
+ {
+ if (!ip6_address_is_equal (&addr6, &ip61->dst_address))
+ {
+ if (!hash_get_mem (ngm->vtep6, &ip61->dst_address))
+ goto exit1; /* no local VTEP for VXLAN packet */
+ addr6 = ip61->dst_address;
+ }
+ }
+
+ flags1 = b1->flags;
+ good_udp1 = (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+
+ /* Don't verify UDP checksum for packets with explicit zero checksum. */
+ good_udp1 |= udp1->checksum == 0;
+
+ /* Verify UDP length */
+ if (is_ip4)
+ ip_len1 = clib_net_to_host_u16 (ip41->length);
+ else
+ ip_len1 = clib_net_to_host_u16 (ip61->payload_length);
+ udp_len1 = clib_net_to_host_u16 (udp1->length);
+ len_diff1 = ip_len1 - udp_len1;
+
+ /* Verify UDP checksum */
+ if (PREDICT_FALSE (!good_udp1))
+ {
+ if ((flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED) == 0)
+ {
+ if (is_ip4)
+ flags1 = ip4_tcp_udp_validate_checksum (vm, b1);
+ else
+ flags1 = ip6_tcp_udp_icmp_validate_checksum (vm, b1);
+ good_udp1 =
+ (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+ }
+ }
+
+ if (is_ip4)
+ {
+ error1 = good_udp1 ? 0 : IP4_ERROR_UDP_CHECKSUM;
+ error1 = (len_diff1 >= 0) ? error1 : IP4_ERROR_UDP_LENGTH;
+ }
+ else
+ {
+ error1 = good_udp1 ? 0 : IP6_ERROR_UDP_CHECKSUM;
+ error1 = (len_diff1 >= 0) ? error1 : IP6_ERROR_UDP_LENGTH;
+ }
+
+ next1 = error1 ?
+ IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
+ b1->error = error1 ? error_node->errors[error1] : 0;
+
+ /* vxlan_gpe-input node expect current at VXLAN header */
+ if (is_ip4)
+ vlib_buffer_advance (b1, sizeof(ip4_header_t)+sizeof(udp_header_t));
+ else
+ vlib_buffer_advance (b1, sizeof(ip6_header_t)+sizeof(udp_header_t));
+
+ exit1:
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t * b0;
+ ip4_header_t * ip40;
+ ip6_header_t * ip60;
+ udp_header_t * udp0;
+ u32 bi0, ip_len0, udp_len0, flags0, next0;
+ i32 len_diff0;
+ u8 error0, good_udp0, proto0;
+
+ bi0 = to_next[0] = from[0];
+ from += 1;
+ n_left_from -= 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ if (is_ip4)
+ ip40 = vlib_buffer_get_current (b0);
+ else
+ ip60 = vlib_buffer_get_current (b0);
+
+ /* Setup packet for next IP feature */
+ vnet_feature_next(vnet_buffer(b0)->sw_if_index[VLIB_RX], &next0, b0);
+
+ if (is_ip4)
+ proto0 = ip40->protocol;
+ else
+ proto0 = ip60->protocol;
+
+ if (proto0 != IP_PROTOCOL_UDP)
+ goto exit; /* not UDP packet */
+
+ if (is_ip4)
+ udp0 = ip4_next_header (ip40);
+ else
+ udp0 = ip6_next_header (ip60);
+
+ if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE))
+ goto exit; /* not VXLAN packet */
+
+ /* Validate DIP against VTEPs*/
+ if (is_ip4)
+ {
+ if (addr4.as_u32 != ip40->dst_address.as_u32)
+ {
+ if (!hash_get (ngm->vtep4, ip40->dst_address.as_u32))
+ goto exit; /* no local VTEP for VXLAN packet */
+ addr4 = ip40->dst_address;
+ }
+ }
+ else
+ {
+ if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
+ {
+ if (!hash_get_mem (ngm->vtep6, &ip60->dst_address))
+ goto exit; /* no local VTEP for VXLAN packet */
+ addr6 = ip60->dst_address;
+ }
+ }
+
+ flags0 = b0->flags;
+ good_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+
+ /* Don't verify UDP checksum for packets with explicit zero checksum. */
+ good_udp0 |= udp0->checksum == 0;
+
+ /* Verify UDP length */
+ if (is_ip4)
+ ip_len0 = clib_net_to_host_u16 (ip40->length);
+ else
+ ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
+ udp_len0 = clib_net_to_host_u16 (udp0->length);
+ len_diff0 = ip_len0 - udp_len0;
+
+ /* Verify UDP checksum */
+ if (PREDICT_FALSE (!good_udp0))
+ {
+ if ((flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED) == 0)
+ {
+ if (is_ip4)
+ flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
+ else
+ flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
+ good_udp0 =
+ (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0;
+ }
+ }
+
+ if (is_ip4)
+ {
+ error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
+ error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
+ }
+ else
+ {
+ error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
+ error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
+ }
+
+ next0 = error0 ?
+ IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
+ b0->error = error0 ? error_node->errors[error0] : 0;
+
+ /* vxlan_gpe-input node expect current at VXLAN header */
+ if (is_ip4)
+ vlib_buffer_advance (b0, sizeof(ip4_header_t)+sizeof(udp_header_t));
+ else
+ vlib_buffer_advance (b0, sizeof(ip6_header_t)+sizeof(udp_header_t));
+
+ exit:
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+static uword
+ip4_vxlan_gpe_bypass (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip_vxlan_gpe_bypass_inline (vm, node, frame, /* is_ip4 */ 1);
+}
+
+VLIB_REGISTER_NODE (ip4_vxlan_gpe_bypass_node) = {
+ .function = ip4_vxlan_gpe_bypass,
+ .name = "ip4-vxlan-gpe-bypass",
+ .vector_size = sizeof (u32),
+
+ .n_next_nodes = IP_VXLAN_BYPASS_N_NEXT,
+ .next_nodes = {
+ [IP_VXLAN_BYPASS_NEXT_DROP] = "error-drop",
+ [IP_VXLAN_BYPASS_NEXT_VXLAN] = "vxlan4-gpe-input",
+ },
+
+ .format_buffer = format_ip4_header,
+ .format_trace = format_ip4_forward_next_trace,
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip4_vxlan_gpe_bypass_node,ip4_vxlan_gpe_bypass)
+
+/* Dummy init function to get us linked in. */
+clib_error_t * ip4_vxlan_gpe_bypass_init (vlib_main_t * vm)
+{ return 0; }
+
+VLIB_INIT_FUNCTION (ip4_vxlan_gpe_bypass_init);
+
+static uword
+ip6_vxlan_gpe_bypass (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip_vxlan_gpe_bypass_inline (vm, node, frame, /* is_ip4 */ 0);
+}
+
+VLIB_REGISTER_NODE (ip6_vxlan_gpe_bypass_node) = {
+ .function = ip6_vxlan_gpe_bypass,
+ .name = "ip6-vxlan-gpe-bypass",
+ .vector_size = sizeof (u32),
+
+ .n_next_nodes = IP_VXLAN_BYPASS_N_NEXT,
+ .next_nodes = {
+ [IP_VXLAN_BYPASS_NEXT_DROP] = "error-drop",
+ [IP_VXLAN_BYPASS_NEXT_VXLAN] = "vxlan6-gpe-input",
+ },
+
+ .format_buffer = format_ip6_header,
+ .format_trace = format_ip6_forward_next_trace,
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_vxlan_gpe_bypass_node,ip6_vxlan_gpe_bypass)
+
+/* Dummy init function to get us linked in. */
+clib_error_t * ip6_vxlan_gpe_bypass_init (vlib_main_t * vm)
+{ return 0; }
+
+VLIB_INIT_FUNCTION (ip6_vxlan_gpe_bypass_init);
u8 is_ipv6;
u8 local[16];
u8 remote[16];
+ u32 mcast_sw_if_index;
u32 encap_vrf_id;
u32 decap_vrf_id;
u8 protocol;
u8 remote[16];
u32 vni;
u8 protocol;
+ u32 mcast_sw_if_index;
u32 encap_vrf_id;
u32 decap_vrf_id;
+
u8 is_ipv6;
};
+/** \brief Interface set vxlan-gpe-bypass request
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sw_if_index - interface used to reach neighbor
+ @param is_ipv6 - if non-zero, enable ipv6-vxlan-bypass, else ipv4-vxlan-bypass
+ @param enable - if non-zero enable, else disable
+*/
+autoreply define sw_interface_set_vxlan_gpe_bypass
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+ u8 is_ipv6;
+ u8 enable;
+};
+
/*
* Local Variables:
* eval: (c-set-style "gnu")
#include <vnet/vxlan-gpe/vxlan_gpe.h>
#include <vnet/fib/fib.h>
#include <vnet/ip/format.h>
+#include <vnet/fib/fib_entry.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/mfib/mfib_table.h>
+#include <vnet/adj/adj_mcast.h>
+#include <vnet/interface.h>
+#include <vlib/vlib.h>
+
+/**
+ * @file
+ * @brief VXLAN-GPE.
+ *
+ * VXLAN-GPE provides the features needed to allow L2 bridge domains (BDs)
+ * to span multiple servers. This is done by building an L2 overlay on
+ * top of an L3 network underlay using VXLAN-GPE tunnels.
+ *
+ * This makes it possible for servers to be co-located in the same data
+ * center or be separated geographically as long as they are reachable
+ * through the underlay L3 network.
+ *
+ * You can refer to this kind of L2 overlay bridge domain as a VXLAN-GPE segment.
+ */
vxlan_gpe_main_t vxlan_gpe_main;
u8 * format_vxlan_gpe_tunnel (u8 * s, va_list * args)
{
vxlan_gpe_tunnel_t * t = va_arg (*args, vxlan_gpe_tunnel_t *);
- vxlan_gpe_main_t * gm = &vxlan_gpe_main;
+ vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
s = format (s, "[%d] local: %U remote: %U ",
- t - gm->tunnels,
+ t - ngm->tunnels,
format_ip46_address, &t->local, IP46_TYPE_ANY,
format_ip46_address, &t->remote, IP46_TYPE_ANY);
static clib_error_t *
vxlan_gpe_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
- if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
- vnet_hw_interface_set_flags (vnm, hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP);
- else
- vnet_hw_interface_set_flags (vnm, hw_if_index, 0);
+ u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
+ VNET_HW_INTERFACE_FLAG_LINK_UP : 0;
+ vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
return 0;
}
.name = "VXLAN_GPE",
.format_header = format_vxlan_gpe_header_with_length,
.build_rewrite = default_build_rewrite,
- .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
+static void
+vxlan_gpe_tunnel_restack_dpo(vxlan_gpe_tunnel_t * t)
+{
+ dpo_id_t dpo = DPO_INVALID;
+ u32 encap_index = vxlan_gpe_encap_node.index;
+ fib_forward_chain_type_t forw_type = ip46_address_is_ip4(&t->remote) ?
+ 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_gpe_tunnel_t *
+vxlan_gpe_tunnel_from_fib_node (fib_node_t *node)
+{
+#if (CLIB_DEBUG > 0)
+ ASSERT(FIB_NODE_TYPE_VXLAN_GPE_TUNNEL == node->fn_type);
+#endif
+ return ((vxlan_gpe_tunnel_t*) (((char*)node) -
+ STRUCT_OFFSET_OF(vxlan_gpe_tunnel_t, node)));
+}
+
+/**
+ * Function definition to backwalk a FIB node -
+ * Here we will restack the new dpo of VXLAN_GPE DIP to encap node.
+ */
+static fib_node_back_walk_rc_t
+vxlan_gpe_tunnel_back_walk (fib_node_t *node,
+ fib_node_back_walk_ctx_t *ctx)
+{
+ vxlan_gpe_tunnel_restack_dpo(vxlan_gpe_tunnel_from_fib_node(node));
+ return (FIB_NODE_BACK_WALK_CONTINUE);
+}
+
+/**
+ * Function definition to get a FIB node from its index
+ */
+static fib_node_t*
+vxlan_gpe_tunnel_fib_node_get (fib_node_index_t index)
+{
+ vxlan_gpe_tunnel_t * t;
+ vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
+
+ t = pool_elt_at_index(ngm->tunnels, index);
+
+ return (&t->node);
+}
+
+/**
+ * Function definition to inform the FIB node that its last lock has gone.
+ */
+static void
+vxlan_gpe_tunnel_last_lock_gone (fib_node_t *node)
+{
+ /*
+ * The VXLAN_GPE tunnel is a root of the graph. As such
+ * it never has children and thus is never locked.
+ */
+ ASSERT(0);
+}
+
+/*
+ * Virtual function table registered by VXLAN_GPE tunnels
+ * for participation in the FIB object graph.
+ */
+const static fib_node_vft_t vxlan_gpe_vft = {
+ .fnv_get = vxlan_gpe_tunnel_fib_node_get,
+ .fnv_last_lock = vxlan_gpe_tunnel_last_lock_gone,
+ .fnv_back_walk = vxlan_gpe_tunnel_back_walk,
+};
#define foreach_gpe_copy_field \
_(vni) \
-_(protocol) \
+_(protocol) \
+_(mcast_sw_if_index) \
_(encap_fib_index) \
_(decap_fib_index)
* @return rc
*
*/
-int vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
+int vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
u8 protocol_override, uword encap_next_node)
{
u8 *rw = 0;
/* UDP header, randomize src port on something, maybe? */
h0->udp.src_port = clib_host_to_net_u16 (4790);
- h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gpe);
+ h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE);
/* VXLAN header. Are we having fun yet? */
h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P;
* @return rc
*
*/
-int vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
+int vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t * t, u32 extension_size,
u8 protocol_override, uword encap_next_node)
{
u8 *rw = 0;
/* UDP header, randomize src port on something, maybe? */
h0->udp.src_port = clib_host_to_net_u16 (4790);
- h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gpe);
+ h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_VXLAN_GPE);
/* VXLAN header. Are we having fun yet? */
h0->vxlan.flags = VXLAN_GPE_FLAGS_I | VXLAN_GPE_FLAGS_P;
return (0);
}
+static void
+hash_set_key_copy (uword ** h, void * key, uword v) {
+ size_t ksz = hash_header(*h)->user;
+ void * copy = clib_mem_alloc (ksz);
+ clib_memcpy (copy, key, ksz);
+ hash_set_mem (*h, copy, v);
+}
+
+static void
+hash_unset_key_free (uword ** h, void * key) {
+ hash_pair_t * hp = hash_get_pair_mem (*h, key);
+ ASSERT (hp);
+ key = uword_to_pointer (hp->key, void *);
+ hash_unset_mem (*h, key);
+ clib_mem_free (key);
+}
+
+static uword
+vtep_addr_ref(ip46_address_t *ip)
+{
+ uword *vtep = ip46_address_is_ip4(ip) ?
+ hash_get (vxlan_gpe_main.vtep4, ip->ip4.as_u32) :
+ hash_get_mem (vxlan_gpe_main.vtep6, &ip->ip6);
+ if (vtep)
+ return ++(*vtep);
+ ip46_address_is_ip4(ip) ?
+ hash_set (vxlan_gpe_main.vtep4, ip->ip4.as_u32, 1) :
+ hash_set_key_copy (&vxlan_gpe_main.vtep6, &ip->ip6, 1);
+ return 1;
+}
+
+static uword
+vtep_addr_unref(ip46_address_t *ip)
+{
+ uword *vtep = ip46_address_is_ip4(ip) ?
+ hash_get (vxlan_gpe_main.vtep4, ip->ip4.as_u32) :
+ hash_get_mem (vxlan_gpe_main.vtep6, &ip->ip6);
+ ASSERT(vtep);
+ if (--(*vtep) != 0)
+ return *vtep;
+ ip46_address_is_ip4(ip) ?
+ hash_unset (vxlan_gpe_main.vtep4, ip->ip4.as_u32) :
+ hash_unset_key_free (&vxlan_gpe_main.vtep6, &ip->ip6);
+ return 0;
+}
+
+typedef CLIB_PACKED(union {
+ struct {
+ fib_node_index_t mfib_entry_index;
+ adj_index_t mcast_adj_index;
+ };
+ u64 as_u64;
+}) mcast_shared_t;
+
+static inline mcast_shared_t
+mcast_shared_get(ip46_address_t * ip)
+{
+ ASSERT(ip46_address_is_multicast(ip));
+ uword * p = hash_get_mem (vxlan_gpe_main.mcast_shared, ip);
+ ASSERT(p);
+ return (mcast_shared_t) { .as_u64 = *p };
+}
+
+static inline void
+mcast_shared_add(ip46_address_t *remote,
+ fib_node_index_t mfei,
+ adj_index_t ai)
+{
+ mcast_shared_t new_ep = {
+ .mcast_adj_index = ai,
+ .mfib_entry_index = mfei,
+ };
+
+ hash_set_key_copy (&vxlan_gpe_main.mcast_shared, remote, new_ep.as_u64);
+}
+
+static inline void
+mcast_shared_remove(ip46_address_t *remote)
+{
+ mcast_shared_t ep = mcast_shared_get(remote);
+
+ adj_unlock(ep.mcast_adj_index);
+ mfib_table_entry_delete_index(ep.mfib_entry_index,
+ MFIB_SOURCE_VXLAN_GPE);
+
+ hash_unset_key_free (&vxlan_gpe_main.mcast_shared, remote);
+}
+
+static inline fib_protocol_t
+fib_ip_proto(bool is_ip6)
+{
+ return (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4;
+}
+
/**
* @brief Add or Del a VXLAN GPE tunnel
*
int vnet_vxlan_gpe_add_del_tunnel
(vnet_vxlan_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp)
{
- vxlan_gpe_main_t * gm = &vxlan_gpe_main;
+ vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
vxlan_gpe_tunnel_t *t = 0;
- vnet_main_t * vnm = gm->vnet_main;
+ vnet_main_t * vnm = ngm->vnet_main;
vnet_hw_interface_t * hi;
uword * p;
u32 hw_if_index = ~0;
int rv;
vxlan4_gpe_tunnel_key_t key4, *key4_copy;
vxlan6_gpe_tunnel_key_t key6, *key6_copy;
- hash_pair_t *hp;
+ u32 is_ip6 = a->is_ip6;
- if (!a->is_ip6)
+ if (!is_ip6)
{
key4.local = a->local.ip4.as_u32;
key4.remote = a->remote.ip4.as_u32;
key4.vni = clib_host_to_net_u32 (a->vni << 8);
key4.pad = 0;
- p = hash_get_mem(gm->vxlan4_gpe_tunnel_by_key, &key4);
+ p = hash_get_mem(ngm->vxlan4_gpe_tunnel_by_key, &key4);
}
else
{
key6.remote.as_u64[1] = a->remote.ip6.as_u64[1];
key6.vni = clib_host_to_net_u32 (a->vni << 8);
- p = hash_get_mem(gm->vxlan6_gpe_tunnel_by_key, &key6);
+ p = hash_get_mem(ngm->vxlan6_gpe_tunnel_by_key, &key6);
}
if (a->is_add)
{
+ l2input_main_t * l2im = &l2input_main;
+
/* adding a tunnel: tunnel must not already exist */
if (p)
- return VNET_API_ERROR_INVALID_VALUE;
+ return VNET_API_ERROR_TUNNEL_EXIST;
- pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES);
+ pool_get_aligned (ngm->tunnels, t, CLIB_CACHE_LINE_BYTES);
memset (t, 0, sizeof (*t));
/* copy from arg structure */
if (rv)
{
- pool_put (gm->tunnels, t);
+ pool_put (ngm->tunnels, t);
return rv;
}
- if (!a->is_ip6)
+ if (!is_ip6)
{
key4_copy = clib_mem_alloc (sizeof (*key4_copy));
clib_memcpy (key4_copy, &key4, sizeof (*key4_copy));
- hash_set_mem (gm->vxlan4_gpe_tunnel_by_key, key4_copy,
- t - gm->tunnels);
+ hash_set_mem (ngm->vxlan4_gpe_tunnel_by_key, key4_copy,
+ t - ngm->tunnels);
}
else
{
key6_copy = clib_mem_alloc (sizeof (*key6_copy));
clib_memcpy (key6_copy, &key6, sizeof (*key6_copy));
- hash_set_mem (gm->vxlan6_gpe_tunnel_by_key, key6_copy,
- t - gm->tunnels);
+ hash_set_mem (ngm->vxlan6_gpe_tunnel_by_key, key6_copy,
+ t - ngm->tunnels);
}
- if (vec_len (gm->free_vxlan_gpe_tunnel_hw_if_indices) > 0)
+ if (vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices) > 0)
{
- hw_if_index = gm->free_vxlan_gpe_tunnel_hw_if_indices
- [vec_len (gm->free_vxlan_gpe_tunnel_hw_if_indices)-1];
- _vec_len (gm->free_vxlan_gpe_tunnel_hw_if_indices) -= 1;
+ vnet_interface_main_t * im = &vnm->interface_main;
+ hw_if_index = ngm->free_vxlan_gpe_tunnel_hw_if_indices
+ [vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices)-1];
+ _vec_len (ngm->free_vxlan_gpe_tunnel_hw_if_indices) -= 1;
hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->dev_instance = t - gm->tunnels;
+ hi->dev_instance = t - ngm->tunnels;
hi->hw_instance = hi->dev_instance;
+ /* clear old stats of freed tunnel before reuse */
+ sw_if_index = hi->sw_if_index;
+ vnet_interface_counter_lock(im);
+ vlib_zero_combined_counter
+ (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX], sw_if_index);
+ vlib_zero_combined_counter
+ (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_RX], sw_if_index);
+ vlib_zero_simple_counter
+ (&im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP], sw_if_index);
+ vnet_interface_counter_unlock(im);
}
else
{
hw_if_index = vnet_register_interface
- (vnm, vxlan_gpe_device_class.index, t - gm->tunnels,
- vxlan_gpe_hw_class.index, t - gm->tunnels);
+ (vnm, vxlan_gpe_device_class.index, t - ngm->tunnels,
+ vxlan_gpe_hw_class.index, t - ngm->tunnels);
hi = vnet_get_hw_interface (vnm, hw_if_index);
hi->output_node_index = vxlan_gpe_encap_node.index;
}
t->hw_if_index = hw_if_index;
t->sw_if_index = sw_if_index = hi->sw_if_index;
- vec_validate_init_empty (gm->tunnel_index_by_sw_if_index, sw_if_index, ~0);
- gm->tunnel_index_by_sw_if_index[sw_if_index] = t - gm->tunnels;
+ vec_validate_init_empty (ngm->tunnel_index_by_sw_if_index, sw_if_index, ~0);
+ ngm->tunnel_index_by_sw_if_index[sw_if_index] = t - ngm->tunnels;
+
+ /* setup l2 input config with l2 feature and bd 0 to drop packet */
+ vec_validate (l2im->configs, sw_if_index);
+ l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
+ l2im->configs[sw_if_index].bd_index = 0;
+ vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, sw_if_index);
+ si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN;
vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_GPE_TUNNEL);
+ fib_prefix_t tun_remote_pfx;
+ u32 encap_index = vxlan_gpe_encap_node.index;
+ vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL;
+
+ fib_prefix_from_ip46_addr(&t->remote, &tun_remote_pfx);
+ if (!ip46_address_is_multicast(&t->remote))
+ {
+ /* Unicast tunnel -
+ * 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
+ */
+ vtep_addr_ref(&t->local);
+ t->fib_entry_index = fib_table_entry_special_add
+ (t->encap_fib_index, &tun_remote_pfx, FIB_SOURCE_RR,
+ FIB_ENTRY_FLAG_NONE);
+ t->sibling_index = fib_entry_child_add
+ (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_GPE_TUNNEL, t - ngm->tunnels);
+ vxlan_gpe_tunnel_restack_dpo(t);
+ }
+ else
+ {
+ /* Multicast tunnel -
+ * as the same mcast group can be used for mutiple mcast tunnels
+ * with different VNIs, create the output fib adjecency only if
+ * it does not already exist
+ */
+ fib_protocol_t fp = fib_ip_proto(is_ip6);
+
+ if (vtep_addr_ref(&t->remote) == 1)
+ {
+ fib_node_index_t mfei;
+ adj_index_t ai;
+ fib_route_path_t path = {
+ .frp_proto = fp,
+ .frp_addr = zero_addr,
+ .frp_sw_if_index = 0xffffffff,
+ .frp_fib_index = ~0,
+ .frp_weight = 0,
+ .frp_flags = FIB_ROUTE_PATH_LOCAL,
+ };
+ const mfib_prefix_t mpfx = {
+ .fp_proto = fp,
+ .fp_len = (is_ip6 ? 128 : 32),
+ .fp_grp_addr = tun_remote_pfx.fp_addr,
+ };
+
+ /*
+ * Setup the (*,G) to receive traffic on the mcast group
+ * - the forwarding interface is for-us
+ * - the accepting interface is that from the API
+ */
+ mfib_table_entry_path_update(t->encap_fib_index,
+ &mpfx,
+ MFIB_SOURCE_VXLAN_GPE,
+ &path,
+ MFIB_ITF_FLAG_FORWARD);
+
+ path.frp_sw_if_index = a->mcast_sw_if_index;
+ path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE;
+ mfei = mfib_table_entry_path_update(t->encap_fib_index,
+ &mpfx,
+ MFIB_SOURCE_VXLAN_GPE,
+ &path,
+ MFIB_ITF_FLAG_ACCEPT);
+
+ /*
+ * Create the mcast adjacency to send traffic to the group
+ */
+ ai = adj_mcast_add_or_lock(fp,
+ fib_proto_to_link(fp),
+ a->mcast_sw_if_index);
+
+ /*
+ * create a new end-point
+ */
+ mcast_shared_add(&t->remote, mfei, ai);
+ }
+
+ dpo_id_t dpo = DPO_INVALID;
+ mcast_shared_t ep = mcast_shared_get(&t->remote);
+
+ /* Stack shared mcast remote mac addr rewrite on encap */
+ dpo_set (&dpo, DPO_ADJACENCY_MCAST,
+ fib_proto_to_dpo(fp),
+ ep.mcast_adj_index);
+
+ dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
+ dpo_reset (&dpo);
+ flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
+ }
+
+ /* 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
{
if (!p)
return VNET_API_ERROR_NO_SUCH_ENTRY;
- t = pool_elt_at_index (gm->tunnels, p[0]);
+ t = pool_elt_at_index (ngm->tunnels, p[0]);
+ sw_if_index = t->sw_if_index;
vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */);
- vec_add1 (gm->free_vxlan_gpe_tunnel_hw_if_indices, t->hw_if_index);
+ vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, t->sw_if_index);
+ si->flags |= VNET_SW_INTERFACE_FLAG_HIDDEN;
+ set_int_l2_mode(ngm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, 0, 0, 0);
+ vec_add1 (ngm->free_vxlan_gpe_tunnel_hw_if_indices, t->hw_if_index);
- gm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;
+ ngm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;
- if (!a->is_ip6)
- {
- hp = hash_get_pair (gm->vxlan4_gpe_tunnel_by_key, &key4);
- key4_copy = (void *)(hp->key);
- hash_unset_mem (gm->vxlan4_gpe_tunnel_by_key, &key4);
- clib_mem_free (key4_copy);
- }
+ if (!is_ip6)
+ hash_unset (ngm->vxlan4_gpe_tunnel_by_key, key4.as_u64);
else
- {
- hp = hash_get_pair (gm->vxlan6_gpe_tunnel_by_key, &key6);
- key6_copy = (void *)(hp->key);
- hash_unset_mem (gm->vxlan4_gpe_tunnel_by_key, &key6);
- clib_mem_free (key6_copy);
- }
+ hash_unset_key_free (&ngm->vxlan6_gpe_tunnel_by_key, &key6);
+
+ if (!ip46_address_is_multicast(&t->remote))
+ {
+ vtep_addr_unref(&t->local);
+ fib_entry_child_remove(t->fib_entry_index, t->sibling_index);
+ fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_RR);
+ }
+ else if (vtep_addr_unref(&t->remote) == 0)
+ {
+ mcast_shared_remove(&t->remote);
+ }
+ fib_node_deinit(&t->node);
vec_free (t->rewrite);
- pool_put (gm->tunnels, t);
+ pool_put (ngm->tunnels, t);
}
if (sw_if_indexp)
ip46_address_t local, remote;
u8 local_set = 0;
u8 remote_set = 0;
+ u8 grp_set = 0;
u8 ipv4_set = 0;
u8 ipv6_set = 0;
+ u32 mcast_sw_if_index = ~0;
u32 encap_fib_index = 0;
u32 decap_fib_index = 0;
u8 protocol = VXLAN_GPE_PROTOCOL_IP4;
remote_set = 1;
ipv6_set = 1;
}
+ else if (unformat (line_input, "group %U %U",
+ unformat_ip4_address, &remote.ip4,
+ unformat_vnet_sw_interface,
+ vnet_get_main(), &mcast_sw_if_index))
+ {
+ grp_set = remote_set = 1;
+ ipv4_set = 1;
+ }
+ else if (unformat (line_input, "group %U %U",
+ unformat_ip6_address, &remote.ip6,
+ unformat_vnet_sw_interface,
+ vnet_get_main(), &mcast_sw_if_index))
+ {
+ grp_set = remote_set = 1;
+ ipv6_set = 1;
+ }
else if (unformat (line_input, "encap-vrf-id %d", &tmp))
{
if (ipv6_set)
goto done;
}
+ if (grp_set && !ip46_address_is_multicast(&remote))
+ {
+ error = clib_error_return (0, "tunnel group address not multicast");
+ goto done;
+ }
+
+ if (grp_set == 0 && ip46_address_is_multicast(&remote))
+ {
+ error = clib_error_return (0, "remote address must be unicast");
+ goto done;
+ }
+
+ if (grp_set && mcast_sw_if_index == ~0)
+ {
+ error = clib_error_return (0, "tunnel nonexistent multicast device");
+ goto done;
+ }
if (ipv4_set && ipv6_set)
{
error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
if ((ipv4_set && memcmp(&local.ip4, &remote.ip4, sizeof(local.ip4)) == 0) ||
(ipv6_set && memcmp(&local.ip6, &remote.ip6, sizeof(local.ip6)) == 0))
{
- error = clib_error_return (0, "src and dst addresses are identical");
+ error = clib_error_return (0, "src and remote addresses are identical");
goto done;
}
return error;
}
+/*?
+ * Add or delete a VXLAN-GPE Tunnel.
+ *
+ * VXLAN-GPE provides the features needed to allow L2 bridge domains (BDs)
+ * to span multiple servers. This is done by building an L2 overlay on
+ * top of an L3 network underlay using VXLAN-GPE tunnels.
+ *
+ * This makes it possible for servers to be co-located in the same data
+ * center or be separated geographically as long as they are reachable
+ * through the underlay L3 network.
+ *
+ * You can refer to this kind of L2 overlay bridge domain as a VXLAN-GPE sengment.
+ *
+ * @cliexpar
+ * Example of how to create a VXLAN-GPE Tunnel:
+ * @cliexcmd{create vxlan-gpe tunnel local 10.0.3.1 local 10.0.3.3 vni 13 encap-vrf-id 7}
+ * Example of how to delete a VXLAN Tunnel:
+ * @cliexcmd{create vxlan tunnel src 10.0.3.1 remote 10.0.3.3 vni 13 del}
+ ?*/
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command, static) = {
.path = "create vxlan-gpe tunnel",
.short_help =
- "create vxlan-gpe tunnel local <local-addr> remote <remote-addr>"
+ "create vxlan-gpe tunnel local <local-addr> "
+ " {remote <remote-addr>|group <mcast-addr> <intf-name>}"
" vni <nn> [next-ip4][next-ip6][next-ethernet][next-nsh]"
- " [encap-vrf-id <nn>] [decap-vrf-id <nn>]"
- " [del]\n",
+ " [encap-vrf-id <nn>] [decap-vrf-id <nn>] [del]\n",
.function = vxlan_gpe_add_del_tunnel_command_fn,
};
+/* *INDENT-ON* */
/**
* @brief CLI function for showing VXLAN GPE tunnels
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- vxlan_gpe_main_t * gm = &vxlan_gpe_main;
+ vxlan_gpe_main_t * ngm = &vxlan_gpe_main;
vxlan_gpe_tunnel_t * t;
- if (pool_elts (gm->tunnels) == 0)
+ if (pool_elts (ngm->tunnels) == 0)
vlib_cli_output (vm, "No vxlan-gpe tunnels configured.");
- pool_foreach (t, gm->tunnels,
+ pool_foreach (t, ngm->tunnels,
({
vlib_cli_output (vm, "%U", format_vxlan_gpe_tunnel, t);
}));
return 0;
}
+/*?
+ * Display all the VXLAN-GPE Tunnel entries.
+ *
+ * @cliexpar
+ * Example of how to display the VXLAN-GPE Tunnel entries:
+ * @cliexstart{show vxlan-gpe tunnel}
+ * [0] local 10.0.3.1 remote 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
+ * @cliexend
+ ?*/
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command, static) = {
.path = "show vxlan-gpe",
.function = show_vxlan_gpe_tunnel_command_fn,
};
+/* *INDENT-ON* */
+
+void vnet_int_vxlan_gpe_bypass_mode (u32 sw_if_index,
+ u8 is_ip6,
+ u8 is_enable)
+{
+ if (is_ip6)
+ vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-gpe-bypass",
+ sw_if_index, is_enable, 0, 0);
+ else
+ vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-gpe-bypass",
+ sw_if_index, is_enable, 0, 0);
+}
+
+
+static clib_error_t *
+set_ip_vxlan_gpe_bypass (u32 is_ip6,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, * line_input = &_line_input;
+ vnet_main_t * vnm = vnet_get_main();
+ clib_error_t * error = 0;
+ u32 sw_if_index, is_enable;
+
+ sw_if_index = ~0;
+ is_enable = 1;
+
+ if (! unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ ;
+ else if (unformat (line_input, "del"))
+ is_enable = 0;
+ else
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
+ }
+
+ if (~0 == sw_if_index)
+ {
+ error = clib_error_return (0, "unknown interface `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+
+ vnet_int_vxlan_gpe_bypass_mode (sw_if_index, is_ip6, is_enable);
+
+ done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+set_ip4_vxlan_gpe_bypass (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ return set_ip_vxlan_gpe_bypass (0, input, cmd);
+}
+
+/*?
+ * This command adds the 'ip4-vxlan-gpe-bypass' graph node for a given interface.
+ * By adding the IPv4 vxlan-gpe-bypass graph node to an interface, the node checks
+ * for and validate input vxlan_gpe packet and bypass ip4-lookup, ip4-local,
+ * ip4-udp-lookup nodes to speedup vxlan_gpe packet forwarding. This node will
+ * cause extra overhead to for non-vxlan_gpe packets which is kept at a minimum.
+ *
+ * @cliexpar
+ * @parblock
+ * Example of graph node before ip4-vxlan-gpe-bypass is enabled:
+ * @cliexstart{show vlib graph ip4-vxlan-gpe-bypass}
+ * Name Next Previous
+ * ip4-vxlan-gpe-bypass error-drop [0]
+ * vxlan4-gpe-input [1]
+ * ip4-lookup [2]
+ * @cliexend
+ *
+ * Example of how to enable ip4-vxlan-gpe-bypass on an interface:
+ * @cliexcmd{set interface ip vxlan-gpe-bypass GigabitEthernet2/0/0}
+ *
+ * Example of graph node after ip4-vxlan-gpe-bypass is enabled:
+ * @cliexstart{show vlib graph ip4-vxlan-gpe-bypass}
+ * Name Next Previous
+ * ip4-vxlan-gpe-bypass error-drop [0] ip4-input
+ * vxlan4-gpe-input [1] ip4-input-no-checksum
+ * ip4-lookup [2]
+ * @cliexend
+ *
+ * Example of how to display the feature enabed on an interface:
+ * @cliexstart{show ip interface features GigabitEthernet2/0/0}
+ * IP feature paths configured on GigabitEthernet2/0/0...
+ * ...
+ * ipv4 unicast:
+ * ip4-vxlan-gpe-bypass
+ * ip4-lookup
+ * ...
+ * @cliexend
+ *
+ * Example of how to disable ip4-vxlan-gpe-bypass on an interface:
+ * @cliexcmd{set interface ip vxlan-gpe-bypass GigabitEthernet2/0/0 del}
+ * @endparblock
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command, static) = {
+ .path = "set interface ip vxlan-gpe-bypass",
+ .function = set_ip4_vxlan_gpe_bypass,
+ .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]",
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+set_ip6_vxlan_gpe_bypass (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ return set_ip_vxlan_gpe_bypass (1, input, cmd);
+}
+
+/*?
+ * This command adds the 'ip6-vxlan-gpe-bypass' graph node for a given interface.
+ * By adding the IPv6 vxlan-gpe-bypass graph node to an interface, the node checks
+ * for and validate input vxlan_gpe packet and bypass ip6-lookup, ip6-local,
+ * ip6-udp-lookup nodes to speedup vxlan_gpe packet forwarding. This node will
+ * cause extra overhead to for non-vxlan_gpe packets which is kept at a minimum.
+ *
+ * @cliexpar
+ * @parblock
+ * Example of graph node before ip6-vxlan-gpe-bypass is enabled:
+ * @cliexstart{show vlib graph ip6-vxlan-gpe-bypass}
+ * Name Next Previous
+ * ip6-vxlan-gpe-bypass error-drop [0]
+ * vxlan6-gpe-input [1]
+ * ip6-lookup [2]
+ * @cliexend
+ *
+ * Example of how to enable ip6-vxlan-gpe-bypass on an interface:
+ * @cliexcmd{set interface ip6 vxlan-gpe-bypass GigabitEthernet2/0/0}
+ *
+ * Example of graph node after ip6-vxlan-gpe-bypass is enabled:
+ * @cliexstart{show vlib graph ip6-vxlan-gpe-bypass}
+ * Name Next Previous
+ * ip6-vxlan-gpe-bypass error-drop [0] ip6-input
+ * vxlan6-gpe-input [1] ip4-input-no-checksum
+ * ip6-lookup [2]
+ * @cliexend
+ *
+ * Example of how to display the feature enabed on an interface:
+ * @cliexstart{show ip interface features GigabitEthernet2/0/0}
+ * IP feature paths configured on GigabitEthernet2/0/0...
+ * ...
+ * ipv6 unicast:
+ * ip6-vxlan-gpe-bypass
+ * ip6-lookup
+ * ...
+ * @cliexend
+ *
+ * Example of how to disable ip6-vxlan-gpe-bypass on an interface:
+ * @cliexcmd{set interface ip6 vxlan-gpe-bypass GigabitEthernet2/0/0 del}
+ * @endparblock
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command, static) = {
+ .path = "set interface ip6 vxlan-gpe-bypass",
+ .function = set_ip6_vxlan_gpe_bypass,
+ .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]",
+};
+/* *INDENT-ON* */
/**
* @brief Feature init function for VXLAN GPE
*/
clib_error_t *vxlan_gpe_init (vlib_main_t *vm)
{
- vxlan_gpe_main_t *gm = &vxlan_gpe_main;
+ vxlan_gpe_main_t *ngm = &vxlan_gpe_main;
- gm->vnet_main = vnet_get_main();
- gm->vlib_main = vm;
+ ngm->vnet_main = vnet_get_main();
+ ngm->vlib_main = vm;
- gm->vxlan4_gpe_tunnel_by_key
+ ngm->vxlan4_gpe_tunnel_by_key
= hash_create_mem (0, sizeof(vxlan4_gpe_tunnel_key_t), sizeof (uword));
- gm->vxlan6_gpe_tunnel_by_key
+ ngm->vxlan6_gpe_tunnel_by_key
= hash_create_mem (0, sizeof(vxlan6_gpe_tunnel_key_t), sizeof (uword));
- udp_register_dst_port (vm, UDP_DST_PORT_vxlan_gpe,
+ ngm->mcast_shared = hash_create_mem(0,
+ sizeof(ip46_address_t),
+ sizeof(mcast_shared_t));
+
+ udp_register_dst_port (vm, UDP_DST_PORT_VXLAN_GPE,
vxlan4_gpe_input_node.index, 1 /* is_ip4 */);
- udp_register_dst_port (vm, UDP_DST_PORT_vxlan6_gpe,
+ udp_register_dst_port (vm, UDP_DST_PORT_VXLAN6_GPE,
vxlan6_gpe_input_node.index, 0 /* is_ip4 */);
/* Register the list of standard decap protocols supported */
VXLAN_GPE_INPUT_NEXT_IP6_INPUT);
vxlan_gpe_register_decap_protocol (VXLAN_GPE_PROTOCOL_ETHERNET,
VXLAN_GPE_INPUT_NEXT_ETHERNET_INPUT);
+
+ fib_node_register_type(FIB_NODE_TYPE_VXLAN_GPE_TUNNEL, &vxlan_gpe_vft);
+
return 0;
}
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_output.h>
+#include <vnet/l2/l2_bd.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#include <vnet/udp/udp.h>
+#include <vnet/dpo/dpo.h>
+#include <vnet/adj/adj_types.h>
/**
* @brief VXLAN GPE header struct
/** encapsulated protocol */
u8 protocol;
+ /* FIB DPO for IP forwarding of VXLAN-GPE encap packet */
+ dpo_id_t next_dpo;
/** tunnel local address */
ip46_address_t local;
/** tunnel remote address */
ip46_address_t remote;
+ /* mcast packet output intfc index (used only if dst is mcast) */
+ u32 mcast_sw_if_index;
+
/** FIB indices - tunnel partner lookup here */
u32 encap_fib_index;
/** FIB indices - inner IP packet lookup here */
/** Next node after VxLAN-GPE encap */
uword encap_next_node;
+
+ /**
+ * Linkage into the FIB object graph
+ */
+ fib_node_t node;
+
+ /*
+ * The FIB entry for (depending on VXLAN-GPE tunnel is unicast or mcast)
+ * sending unicast VXLAN-GPE encap packets or receiving mcast VXLAN-GPE packets
+ */
+ fib_node_index_t fib_entry_index;
+ adj_index_t mcast_adj_index;
+
+ /**
+ * The tunnel is a child of the FIB entry for its desintion. This is
+ * so it receives updates when the forwarding information for that entry
+ * changes.
+ * The tunnels sibling index on the FIB entry's dependency list.
+ */
+ u32 sibling_index;
+
} vxlan_gpe_tunnel_t;
/** Flags for vxlan_gpe_tunnel_t */
/** lookup IPv6 VXLAN GPE tunnel by key */
uword * vxlan6_gpe_tunnel_by_key;
+ /* local VTEP IPs ref count used by vxlan-bypass node to check if
+ received VXLAN packet DIP matches any local VTEP address */
+ uword * vtep4; /* local ip4 VTEPs keyed on their ip4 addr */
+ uword * vtep6; /* local ip6 VTEPs keyed on their ip6 addr */
+ /* mcast shared info */
+ uword * mcast_shared; /* keyed on mcast ip46 addr */
/** Free vlib hw_if_indices */
u32 * free_vxlan_gpe_tunnel_hw_if_indices;
u8 is_ip6;
ip46_address_t local, remote;
u8 protocol;
+ u32 mcast_sw_if_index;
u32 encap_fib_index;
u32 decap_fib_index;
u32 vni;
void vxlan_gpe_register_decap_protocol (u8 protocol_id, uword next_node_index);
+void vnet_int_vxlan_gpe_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable);
#endif /* included_vnet_vxlan_gpe_h */
#include <vnet/interface.h>
#include <vnet/api_errno.h>
+#include <vnet/feature/feature.h>
#include <vnet/vxlan-gpe/vxlan_gpe.h>
#include <vnet/fib/fib_table.h>
#include <vlibapi/api_helper_macros.h>
#define foreach_vpe_api_msg \
+_(SW_INTERFACE_SET_VXLAN_GPE_BYPASS, sw_interface_set_vxlan_gpe_bypass) \
_(VXLAN_GPE_ADD_DEL_TUNNEL, vxlan_gpe_add_del_tunnel) \
_(VXLAN_GPE_TUNNEL_DUMP, vxlan_gpe_tunnel_dump) \
+static void
+ vl_api_sw_interface_set_vxlan_gpe_bypass_t_handler
+ (vl_api_sw_interface_set_vxlan_gpe_bypass_t * mp)
+{
+ vl_api_sw_interface_set_vxlan_gpe_bypass_reply_t *rmp;
+ int rv = 0;
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ vnet_int_vxlan_gpe_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_GPE_BYPASS_REPLY);
+}
+
static void
vl_api_vxlan_gpe_add_del_tunnel_t_handler
(vl_api_vxlan_gpe_add_del_tunnel_t * mp)
clib_memcpy (&(a->local.ip4), mp->local, 4);
clib_memcpy (&(a->remote.ip4), mp->remote, 4);
}
+ a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index);
a->encap_fib_index = encap_fib_index;
a->decap_fib_index = decap_fib_index;
a->protocol = protocol;
rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id);
}
+ rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
rmp->vni = htonl (t->vni);
rmp->protocol = t->protocol;
rmp->sw_if_index = htonl (t->sw_if_index);
--- /dev/null
+#!/usr/bin/env python
+
+import socket
+from util import ip4n_range
+import unittest
+from framework import VppTestCase, VppTestRunner, running_extended_tests
+from template_bd import BridgeDomain
+
+from scapy.layers.l2 import Ether, Raw
+from scapy.layers.inet import IP, UDP
+from scapy.layers.vxlan import VXLAN
+from scapy.utils import atol
+
+
+@unittest.skipUnless(running_extended_tests(), "part of extended tests")
+class TestVxlanGpe(BridgeDomain, VppTestCase):
+ """ VXLAN-GPE Test Case """
+
+ def __init__(self, *args):
+ BridgeDomain.__init__(self)
+ VppTestCase.__init__(self, *args)
+
+ def encapsulate(self, pkt, vni):
+ """
+ Encapsulate the original payload frame by adding VXLAN-GPE header
+ with its UDP, IP and Ethernet fields
+ """
+ return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ UDP(sport=self.dport, dport=self.dport, chksum=0) /
+ VXLAN(vni=vni, flags=self.flags) /
+ pkt)
+
+ def encap_mcast(self, pkt, src_ip, src_mac, vni):
+ """
+ Encapsulate the original payload frame by adding VXLAN-GPE header
+ with its UDP, IP and Ethernet fields
+ """
+ return (Ether(src=src_mac, dst=self.mcast_mac) /
+ IP(src=src_ip, dst=self.mcast_ip4) /
+ UDP(sport=self.dport, dport=self.dport, chksum=0) /
+ VXLAN(vni=vni, flags=self.flags) /
+ pkt)
+
+ def decapsulate(self, pkt):
+ """
+ Decapsulate the original payload frame by removing VXLAN-GPE header
+ """
+ # check if is set I and P flag
+ self.assertEqual(pkt[VXLAN].flags, int('0xc', 16))
+ return pkt[VXLAN].payload
+
+ # Method for checking VXLAN-GPE encapsulation.
+ #
+ def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
+ # Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
+ # by VPP using ARP.
+ self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
+ if not local_only:
+ if not mcast_pkt:
+ self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
+ else:
+ self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
+ # Verify VXLAN-GPE tunnel src IP is VPP_IP and dst IP is MY_IP.
+ self.assertEqual(pkt[IP].src, self.pg0.local_ip4)
+ if not local_only:
+ if not mcast_pkt:
+ self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
+ else:
+ self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
+ # Verify UDP destination port is VXLAN-GPE 4790, source UDP port
+ # could be arbitrary.
+ self.assertEqual(pkt[UDP].dport, type(self).dport)
+ # Verify VNI
+ self.assertEqual(pkt[VXLAN].VNI, vni)
+
+ def test_decap(self):
+ """ Decapsulation test
+ Send encapsulated frames from pg0
+ Verify receipt of decapsulated frames on pg1
+ """
+
+ encapsulated_pkt = self.encapsulate(self.frame_request,
+ self.single_tunnel_bd)
+
+ self.pg0.add_stream([encapsulated_pkt, ])
+
+ self.pg1.enable_capture()
+
+ self.pg_start()
+
+ # Pick first received frame and check if it's the non-encapsulated
+ # frame
+ out = self.pg1.get_capture(1)
+ pkt = out[0]
+ self.assert_eq_pkts(pkt, self.frame_request)
+
+ def test_encap(self):
+ """ Encapsulation test
+ Send frames from pg1
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg1.add_stream([self.frame_reply])
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ # Pick first received frame and check if it's corectly encapsulated.
+ out = self.pg0.get_capture(1)
+ pkt = out[0]
+ self.check_encapsulation(pkt, self.single_tunnel_bd)
+
+ # payload = self.decapsulate(pkt)
+ # self.assert_eq_pkts(payload, self.frame_reply)
+
+ def test_ucast_flood(self):
+ """ Unicast flood test
+ Send frames from pg3
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg3.add_stream([self.frame_reply])
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ # Get packet from each tunnel and assert it's corectly encapsulated.
+ out = self.pg0.get_capture(self.n_ucast_tunnels)
+ for pkt in out:
+ self.check_encapsulation(pkt, self.ucast_flood_bd, True)
+ # payload = self.decapsulate(pkt)
+ # self.assert_eq_pkts(payload, self.frame_reply)
+
+ def test_mcast_flood(self):
+ """ Multicast flood test
+ Send frames from pg2
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg2.add_stream([self.frame_reply])
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ # Pick first received frame and check if it's corectly encapsulated.
+ out = self.pg0.get_capture(1)
+ pkt = out[0]
+ self.check_encapsulation(pkt, self.mcast_flood_bd,
+ local_only=False, mcast_pkt=True)
+
+ # payload = self.decapsulate(pkt)
+ # self.assert_eq_pkts(payload, self.frame_reply)
+
+ @classmethod
+ def create_vxlan_gpe_flood_test_bd(cls, vni, n_ucast_tunnels):
+ # Create 10 ucast vxlan_gpe tunnels under bd
+ ip_range_start = 10
+ ip_range_end = ip_range_start + n_ucast_tunnels
+ next_hop_address = cls.pg0.remote_ip4n
+ for dest_ip4n in ip4n_range(next_hop_address, ip_range_start,
+ ip_range_end):
+ # add host route so dest_ip4n will not be resolved
+ cls.vapi.ip_add_del_route(dest_ip4n, 32, next_hop_address)
+ r = cls.vapi.vxlan_gpe_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=dest_ip4n,
+ vni=vni)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
+
+ @classmethod
+ def add_del_shared_mcast_dst_load(cls, is_add):
+ """
+ add or del tunnels sharing the same mcast dst
+ to test vxlan_gpe ref_count mechanism
+ """
+ n_shared_dst_tunnels = 20
+ vni_start = 1000
+ vni_end = vni_start + n_shared_dst_tunnels
+ for vni in range(vni_start, vni_end):
+ r = cls.vapi.vxlan_gpe_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=cls.mcast_ip4n,
+ mcast_sw_if_index=1,
+ vni=vni,
+ is_add=is_add)
+ if r.sw_if_index == 0xffffffff:
+ raise "bad sw_if_index"
+
+ @classmethod
+ def add_shared_mcast_dst_load(cls):
+ cls.add_del_shared_mcast_dst_load(is_add=1)
+
+ @classmethod
+ def del_shared_mcast_dst_load(cls):
+ cls.add_del_shared_mcast_dst_load(is_add=0)
+
+ @classmethod
+ def add_del_mcast_tunnels_load(cls, is_add):
+ """
+ add or del tunnels to test vxlan_gpe stability
+ """
+ n_distinct_dst_tunnels = 20
+ ip_range_start = 10
+ ip_range_end = ip_range_start + n_distinct_dst_tunnels
+ for dest_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start,
+ ip_range_end):
+ vni = bytearray(dest_ip4n)[3]
+ cls.vapi.vxlan_gpe_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=dest_ip4n,
+ mcast_sw_if_index=1,
+ vni=vni,
+ is_add=is_add)
+
+ @classmethod
+ def add_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=1)
+
+ @classmethod
+ def del_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=0)
+
+ # Class method to start the VXLAN-GPE test case.
+ # Overrides setUpClass method in VppTestCase class.
+ # Python try..except statement is used to ensure that the tear down of
+ # the class will be executed even if exception is raised.
+ # @param cls The class pointer.
+ @classmethod
+ def setUpClass(cls):
+ super(TestVxlanGpe, cls).setUpClass()
+
+ try:
+ cls.dport = 4790
+ cls.flags = 0xc
+
+ # Create 2 pg interfaces.
+ cls.create_pg_interfaces(range(4))
+ for pg in cls.pg_interfaces:
+ pg.admin_up()
+
+ # Configure IPv4 addresses on VPP pg0.
+ cls.pg0.config_ip4()
+
+ # Resolve MAC address for VPP's IP address on pg0.
+ cls.pg0.resolve_arp()
+
+ # Our Multicast address
+ cls.mcast_ip4 = '239.1.1.1'
+ cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4)
+ iplong = atol(cls.mcast_ip4)
+ cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % (
+ (iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF)
+
+ # Create VXLAN-GPE VTEP on VPP pg0, and put vxlan_gpe_tunnel0
+ # and pg1 into BD.
+ cls.single_tunnel_bd = 11
+ r = cls.vapi.vxlan_gpe_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=cls.pg0.remote_ip4n,
+ vni=cls.single_tunnel_bd)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
+ bd_id=cls.single_tunnel_bd)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg1.sw_if_index,
+ bd_id=cls.single_tunnel_bd)
+
+ # Setup vni 2 to test multicast flooding
+ cls.n_ucast_tunnels = 10
+ cls.mcast_flood_bd = 12
+ cls.create_vxlan_gpe_flood_test_bd(cls.mcast_flood_bd,
+ cls.n_ucast_tunnels)
+ r = cls.vapi.vxlan_gpe_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=cls.mcast_ip4n,
+ mcast_sw_if_index=1,
+ vni=cls.mcast_flood_bd)
+ cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index,
+ bd_id=cls.mcast_flood_bd)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg2.sw_if_index,
+ bd_id=cls.mcast_flood_bd)
+
+ # Add and delete mcast tunnels to check stability
+ cls.add_shared_mcast_dst_load()
+ cls.add_mcast_tunnels_load()
+ cls.del_shared_mcast_dst_load()
+ cls.del_mcast_tunnels_load()
+
+ # Setup vni 3 to test unicast flooding
+ cls.ucast_flood_bd = 13
+ cls.create_vxlan_gpe_flood_test_bd(cls.ucast_flood_bd,
+ cls.n_ucast_tunnels)
+ cls.vapi.sw_interface_set_l2_bridge(cls.pg3.sw_if_index,
+ bd_id=cls.ucast_flood_bd)
+ except Exception:
+ super(TestVxlanGpe, cls).tearDownClass()
+ raise
+
+ # Method to define VPP actions before tear down of the test case.
+ # Overrides tearDown method in VppTestCase class.
+ # @param self The object pointer.
+ def tearDown(self):
+ super(TestVxlanGpe, self).tearDown()
+ if not self.vpp_dead:
+ self.logger.info(self.vapi.cli("show bridge-domain 11 detail"))
+ self.logger.info(self.vapi.cli("show bridge-domain 12 detail"))
+ self.logger.info(self.vapi.cli("show bridge-domain 13 detail"))
+ self.logger.info(self.vapi.cli("show int"))
+ self.logger.info(self.vapi.cli("show vxlan-gpe tunnel"))
+ self.logger.info(self.vapi.cli("show trace"))
+
+
+if __name__ == '__main__':
+ unittest.main(testRunner=VppTestRunner)
'encap_vrf_id': encap_vrf_id,
'decap_next_index': decap_next_index,
'teid': teid})
+
+ def vxlan_gpe_add_del_tunnel(
+ self,
+ src_addr,
+ dst_addr,
+ mcast_sw_if_index=0xFFFFFFFF,
+ is_add=1,
+ is_ipv6=0,
+ encap_vrf_id=0,
+ decap_vrf_id=0,
+ protocol=3,
+ vni=0):
+ """
+
+ :param local:
+ :param remote:
+ :param is_add: (Default value = 1)
+ :param is_ipv6: (Default value = 0)
+ :param encap_vrf_id: (Default value = 0)
+ :param decap_vrf_id: (Default value = 0)
+ :param mcast_sw_if_index: (Default value = 0xFFFFFFFF)
+ :param protocol: (Default value = 3)
+ :param vni: (Default value = 0)
+
+ """
+ return self.api(self.papi.vxlan_gpe_add_del_tunnel,
+ {'is_add': is_add,
+ 'is_ipv6': is_ipv6,
+ 'local': src_addr,
+ 'remote': dst_addr,
+ 'mcast_sw_if_index': mcast_sw_if_index,
+ 'encap_vrf_id': encap_vrf_id,
+ 'decap_vrf_id': decap_vrf_id,
+ 'protocol': protocol,
+ 'vni': vni})
Code Review / vpp.git / commitdiff