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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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 & VNET_BUFFER_F_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);
Code Review / vpp.git / blobdiff