diff options
Diffstat (limited to 'src/vnet/vxlan/decap.c')
| -rw-r--r-- | src/vnet/vxlan/decap.c | 1330 |
1 files changed, 0 insertions, 1330 deletions
diff --git a/src/vnet/vxlan/decap.c b/src/vnet/vxlan/decap.c deleted file mode 100644 index 729293fb3e5..00000000000 --- a/src/vnet/vxlan/decap.c +++ /dev/null @@ -1,1330 +0,0 @@ -/* - * decap.c: vxlan tunnel decap packet processing - * - * Copyright (c) 2013 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <vlib/vlib.h> -#include <vnet/vxlan/vxlan.h> -#include <vnet/udp/udp_local.h> - -#ifndef CLIB_MARCH_VARIANT -vlib_node_registration_t vxlan4_input_node; -vlib_node_registration_t vxlan6_input_node; -#endif - -typedef struct -{ - u32 next_index; - u32 tunnel_index; - u32 error; - u32 vni; -} vxlan_rx_trace_t; - -static u8 * -format_vxlan_rx_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - vxlan_rx_trace_t *t = va_arg (*args, vxlan_rx_trace_t *); - - if (t->tunnel_index == ~0) - return format (s, "VXLAN decap error - tunnel for vni %d does not exist", - t->vni); - return format (s, "VXLAN decap from vxlan_tunnel%d vni %d next %d error %d", - t->tunnel_index, t->vni, t->next_index, t->error); -} - -typedef vxlan4_tunnel_key_t last_tunnel_cache4; - -static const vxlan_decap_info_t decap_not_found = { - .sw_if_index = ~0, - .next_index = VXLAN_INPUT_NEXT_DROP, - .error = VXLAN_ERROR_NO_SUCH_TUNNEL -}; - -static const vxlan_decap_info_t decap_bad_flags = { - .sw_if_index = ~0, - .next_index = VXLAN_INPUT_NEXT_DROP, - .error = VXLAN_ERROR_BAD_FLAGS -}; - -always_inline vxlan_decap_info_t -vxlan4_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache4 * cache, - u32 fib_index, ip4_header_t * ip4_0, - vxlan_header_t * vxlan0, u32 * stats_sw_if_index) -{ - if (PREDICT_FALSE (vxlan0->flags != VXLAN_FLAGS_I)) - return decap_bad_flags; - - /* Make sure VXLAN tunnel exist according to packet S/D IP, UDP port, VRF, - * and VNI */ - u32 dst = ip4_0->dst_address.as_u32; - u32 src = ip4_0->src_address.as_u32; - udp_header_t *udp = ip4_next_header (ip4_0); - vxlan4_tunnel_key_t key4 = { - .key[0] = ((u64) dst << 32) | src, - .key[1] = ((u64) udp->dst_port << 48) | ((u64) fib_index << 32) | - vxlan0->vni_reserved, - }; - - if (PREDICT_TRUE - (key4.key[0] == cache->key[0] && key4.key[1] == cache->key[1])) - { - /* cache hit */ - vxlan_decap_info_t di = {.as_u64 = cache->value }; - *stats_sw_if_index = di.sw_if_index; - return di; - } - - int rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); - if (PREDICT_TRUE (rv == 0)) - { - *cache = key4; - vxlan_decap_info_t di = {.as_u64 = key4.value }; - *stats_sw_if_index = di.sw_if_index; - return di; - } - - /* try multicast */ - if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address))) - return decap_not_found; - - /* search for mcast decap info by mcast address */ - key4.key[0] = dst; - rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); - if (rv != 0) - return decap_not_found; - - /* search for unicast tunnel using the mcast tunnel local(src) ip */ - vxlan_decap_info_t mdi = {.as_u64 = key4.value }; - key4.key[0] = ((u64) mdi.local_ip.as_u32 << 32) | src; - rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); - if (PREDICT_FALSE (rv != 0)) - return decap_not_found; - - /* mcast traffic does not update the cache */ - *stats_sw_if_index = mdi.sw_if_index; - vxlan_decap_info_t di = {.as_u64 = key4.value }; - return di; -} - -typedef vxlan6_tunnel_key_t last_tunnel_cache6; - -always_inline vxlan_decap_info_t -vxlan6_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache6 * cache, - u32 fib_index, ip6_header_t * ip6_0, - vxlan_header_t * vxlan0, u32 * stats_sw_if_index) -{ - if (PREDICT_FALSE (vxlan0->flags != VXLAN_FLAGS_I)) - return decap_bad_flags; - - /* Make sure VXLAN tunnel exist according to packet SIP, UDP port, VRF, and - * VNI */ - udp_header_t *udp = ip6_next_header (ip6_0); - vxlan6_tunnel_key_t key6 = { - .key[0] = ip6_0->src_address.as_u64[0], - .key[1] = ip6_0->src_address.as_u64[1], - .key[2] = ((u64) udp->dst_port << 48) | ((u64) fib_index << 32) | - vxlan0->vni_reserved, - }; - - if (PREDICT_FALSE - (clib_bihash_key_compare_24_8 (key6.key, cache->key) == 0)) - { - int rv = - clib_bihash_search_inline_24_8 (&vxm->vxlan6_tunnel_by_key, &key6); - if (PREDICT_FALSE (rv != 0)) - return decap_not_found; - - *cache = key6; - } - vxlan_tunnel_t *t0 = pool_elt_at_index (vxm->tunnels, cache->value); - - /* Validate VXLAN tunnel SIP against packet DIP */ - if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address, &t0->src.ip6))) - *stats_sw_if_index = t0->sw_if_index; - else - { - /* try multicast */ - if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address))) - return decap_not_found; - - /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */ - key6.key[0] = ip6_0->dst_address.as_u64[0]; - key6.key[1] = ip6_0->dst_address.as_u64[1]; - int rv = - clib_bihash_search_inline_24_8 (&vxm->vxlan6_tunnel_by_key, &key6); - if (PREDICT_FALSE (rv != 0)) - return decap_not_found; - - vxlan_tunnel_t *mcast_t0 = pool_elt_at_index (vxm->tunnels, key6.value); - *stats_sw_if_index = mcast_t0->sw_if_index; - } - - vxlan_decap_info_t di = { - .sw_if_index = t0->sw_if_index, - .next_index = t0->decap_next_index, - }; - return di; -} - -always_inline uword -vxlan_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, u32 is_ip4) -{ - vxlan_main_t *vxm = &vxlan_main; - vnet_main_t *vnm = vxm->vnet_main; - vnet_interface_main_t *im = &vnm->interface_main; - vlib_combined_counter_main_t *rx_counter = - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX; - last_tunnel_cache4 last4; - last_tunnel_cache6 last6; - u32 pkts_dropped = 0; - u32 thread_index = vlib_get_thread_index (); - - if (is_ip4) - clib_memset (&last4, 0xff, sizeof last4); - else - clib_memset (&last6, 0xff, sizeof last6); - - u32 *from = vlib_frame_vector_args (from_frame); - u32 n_left_from = from_frame->n_vectors; - - vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; - vlib_get_buffers (vm, from, bufs, n_left_from); - - u32 stats_if0 = ~0, stats_if1 = ~0; - u16 nexts[VLIB_FRAME_SIZE], *next = nexts; - while (n_left_from >= 4) - { - /* Prefetch next iteration. */ - vlib_prefetch_buffer_header (b[2], LOAD); - vlib_prefetch_buffer_header (b[3], LOAD); - - /* udp leaves current_data pointing at the vxlan header */ - void *cur0 = vlib_buffer_get_current (b[0]); - void *cur1 = vlib_buffer_get_current (b[1]); - vxlan_header_t *vxlan0 = cur0; - vxlan_header_t *vxlan1 = cur1; - - - ip4_header_t *ip4_0, *ip4_1; - ip6_header_t *ip6_0, *ip6_1; - if (is_ip4) - { - ip4_0 = cur0 - sizeof (udp_header_t) - sizeof (ip4_header_t); - ip4_1 = cur1 - sizeof (udp_header_t) - sizeof (ip4_header_t); - } - else - { - ip6_0 = cur0 - sizeof (udp_header_t) - sizeof (ip6_header_t); - ip6_1 = cur1 - sizeof (udp_header_t) - sizeof (ip6_header_t); - } - - /* pop vxlan */ - vlib_buffer_advance (b[0], sizeof *vxlan0); - vlib_buffer_advance (b[1], sizeof *vxlan1); - - u32 fi0 = vlib_buffer_get_ip_fib_index (b[0], is_ip4); - u32 fi1 = vlib_buffer_get_ip_fib_index (b[1], is_ip4); - - vxlan_decap_info_t di0 = is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, &stats_if0) : - vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, &stats_if0); - vxlan_decap_info_t di1 = is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi1, ip4_1, vxlan1, &stats_if1) : - vxlan6_find_tunnel (vxm, &last6, fi1, ip6_1, vxlan1, &stats_if1); - - /* Prefetch next iteration. */ - clib_prefetch_load (b[2]->data); - clib_prefetch_load (b[3]->data); - - u32 len0 = vlib_buffer_length_in_chain (vm, b[0]); - u32 len1 = vlib_buffer_length_in_chain (vm, b[1]); - - next[0] = di0.next_index; - next[1] = di1.next_index; - - u8 any_error = di0.error | di1.error; - if (PREDICT_TRUE (any_error == 0)) - { - /* Required to make the l2 tag push / pop code work on l2 subifs */ - vnet_update_l2_len (b[0]); - vnet_update_l2_len (b[1]); - /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ - vnet_buffer (b[0])->sw_if_index[VLIB_RX] = di0.sw_if_index; - vnet_buffer (b[1])->sw_if_index[VLIB_RX] = di1.sw_if_index; - vlib_increment_combined_counter (rx_counter, thread_index, - stats_if0, 1, len0); - vlib_increment_combined_counter (rx_counter, thread_index, - stats_if1, 1, len1); - } - else - { - if (di0.error == 0) - { - vnet_update_l2_len (b[0]); - vnet_buffer (b[0])->sw_if_index[VLIB_RX] = di0.sw_if_index; - vlib_increment_combined_counter (rx_counter, thread_index, - stats_if0, 1, len0); - } - else - { - b[0]->error = node->errors[di0.error]; - pkts_dropped++; - } - - if (di1.error == 0) - { - vnet_update_l2_len (b[1]); - vnet_buffer (b[1])->sw_if_index[VLIB_RX] = di1.sw_if_index; - vlib_increment_combined_counter (rx_counter, thread_index, - stats_if1, 1, len1); - } - else - { - b[1]->error = node->errors[di1.error]; - pkts_dropped++; - } - } - - if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b[0], sizeof (*tr)); - tr->next_index = next[0]; - tr->error = di0.error; - tr->tunnel_index = di0.sw_if_index == ~0 ? - ~0 : vxm->tunnel_index_by_sw_if_index[di0.sw_if_index]; - tr->vni = vnet_get_vni (vxlan0); - } - if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b[1], sizeof (*tr)); - tr->next_index = next[1]; - tr->error = di1.error; - tr->tunnel_index = di1.sw_if_index == ~0 ? - ~0 : vxm->tunnel_index_by_sw_if_index[di1.sw_if_index]; - tr->vni = vnet_get_vni (vxlan1); - } - b += 2; - next += 2; - n_left_from -= 2; - } - - while (n_left_from > 0) - { - /* udp leaves current_data pointing at the vxlan header */ - void *cur0 = vlib_buffer_get_current (b[0]); - vxlan_header_t *vxlan0 = cur0; - ip4_header_t *ip4_0; - ip6_header_t *ip6_0; - if (is_ip4) - ip4_0 = cur0 - sizeof (udp_header_t) - sizeof (ip4_header_t); - else - ip6_0 = cur0 - sizeof (udp_header_t) - sizeof (ip6_header_t); - - /* pop (ip, udp, vxlan) */ - vlib_buffer_advance (b[0], sizeof (*vxlan0)); - - u32 fi0 = vlib_buffer_get_ip_fib_index (b[0], is_ip4); - - vxlan_decap_info_t di0 = is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, &stats_if0) : - vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, &stats_if0); - - uword len0 = vlib_buffer_length_in_chain (vm, b[0]); - - next[0] = di0.next_index; - - /* Validate VXLAN tunnel encap-fib index against packet */ - if (di0.error == 0) - { - /* Required to make the l2 tag push / pop code work on l2 subifs */ - vnet_update_l2_len (b[0]); - - /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ - vnet_buffer (b[0])->sw_if_index[VLIB_RX] = di0.sw_if_index; - - vlib_increment_combined_counter (rx_counter, thread_index, - stats_if0, 1, len0); - } - else - { - b[0]->error = node->errors[di0.error]; - pkts_dropped++; - } - - if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr - = vlib_add_trace (vm, node, b[0], sizeof (*tr)); - tr->next_index = next[0]; - tr->error = di0.error; - tr->tunnel_index = di0.sw_if_index == ~0 ? - ~0 : vxm->tunnel_index_by_sw_if_index[di0.sw_if_index]; - tr->vni = vnet_get_vni (vxlan0); - } - b += 1; - next += 1; - n_left_from -= 1; - } - vlib_buffer_enqueue_to_next (vm, node, from, nexts, from_frame->n_vectors); - /* Do we still need this now that tunnel tx stats is kept? */ - u32 node_idx = is_ip4 ? vxlan4_input_node.index : vxlan6_input_node.index; - vlib_node_increment_counter (vm, node_idx, VXLAN_ERROR_DECAPSULATED, - from_frame->n_vectors - pkts_dropped); - - return from_frame->n_vectors; -} - -VLIB_NODE_FN (vxlan4_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - return vxlan_input (vm, node, from_frame, /* is_ip4 */ 1); -} - -VLIB_NODE_FN (vxlan6_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - return vxlan_input (vm, node, from_frame, /* is_ip4 */ 0); -} - -static char *vxlan_error_strings[] = { -#define vxlan_error(n,s) s, -#include <vnet/vxlan/vxlan_error.def> -#undef vxlan_error -}; - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (vxlan4_input_node) = -{ - .name = "vxlan4-input", - .vector_size = sizeof (u32), - .n_errors = VXLAN_N_ERROR, - .error_strings = vxlan_error_strings, - .n_next_nodes = VXLAN_INPUT_N_NEXT, - .format_trace = format_vxlan_rx_trace, - .next_nodes = { -#define _(s,n) [VXLAN_INPUT_NEXT_##s] = n, - foreach_vxlan_input_next -#undef _ - }, -}; - -VLIB_REGISTER_NODE (vxlan6_input_node) = -{ - .name = "vxlan6-input", - .vector_size = sizeof (u32), - .n_errors = VXLAN_N_ERROR, - .error_strings = vxlan_error_strings, - .n_next_nodes = VXLAN_INPUT_N_NEXT, - .next_nodes = { -#define _(s,n) [VXLAN_INPUT_NEXT_##s] = n, - foreach_vxlan_input_next -#undef _ - }, - .format_trace = format_vxlan_rx_trace, -}; -/* *INDENT-ON* */ - -typedef enum -{ - IP_VXLAN_BYPASS_NEXT_DROP, - IP_VXLAN_BYPASS_NEXT_VXLAN, - IP_VXLAN_BYPASS_N_NEXT, -} ip_vxlan_bypass_next_t; - -always_inline uword -ip_vxlan_bypass_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, u32 is_ip4) -{ - vxlan_main_t *vxm = &vxlan_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); - vtep4_key_t last_vtep4; /* last IPv4 address / fib index - matching a local VTEP address */ - vtep6_key_t last_vtep6; /* last IPv6 address / fib index - matching a local VTEP address */ - vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; - - last_tunnel_cache4 last4; - last_tunnel_cache6 last6; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - vlib_get_buffers (vm, from, bufs, n_left_from); - - if (node->flags & VLIB_NODE_FLAG_TRACE) - ip4_forward_next_trace (vm, node, frame, VLIB_TX); - - if (is_ip4) - { - vtep4_key_init (&last_vtep4); - clib_memset (&last4, 0xff, sizeof last4); - } - else - { - vtep6_key_init (&last_vtep6); - clib_memset (&last6, 0xff, sizeof last6); - } - - 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; - vxlan_header_t *vxlan0, *vxlan1; - 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; - u32 stats_if0 = ~0, stats_if1 = ~0; - - /* Prefetch next iteration. */ - { - vlib_prefetch_buffer_header (b[2], LOAD); - vlib_prefetch_buffer_header (b[3], LOAD); - - CLIB_PREFETCH (b[2]->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (b[3]->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 = b[0]; - b1 = b[1]; - b += 2; - 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 (&next0, b0); - vnet_feature_next (&next1, b1); - - if (is_ip4) - { - /* Treat IP frag packets as "experimental" protocol for now - until support of IP frag reassembly is implemented */ - proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol; - proto1 = ip4_is_fragment (ip41) ? 0xfe : 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); - - u32 fi0 = vlib_buffer_get_ip_fib_index (b0, is_ip4); - vxlan0 = vlib_buffer_get_current (b0) + sizeof (udp_header_t) + - sizeof (ip4_header_t); - - vxlan_decap_info_t di0 = - is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi0, ip40, vxlan0, &stats_if0) : - vxlan6_find_tunnel (vxm, &last6, fi0, ip60, vxlan0, &stats_if0); - - if (PREDICT_FALSE (di0.sw_if_index == ~0)) - goto exit0; /* unknown interface */ - - /* Validate DIP against VTEPs */ - if (is_ip4) - { -#ifdef CLIB_HAVE_VEC512 - if (!vtep4_check_vector (&vxm->vtep_table, b0, ip40, &last_vtep4, - &vxm->vtep4_u512)) -#else - if (!vtep4_check (&vxm->vtep_table, b0, ip40, &last_vtep4)) -#endif - goto exit0; /* no local VTEP for VXLAN packet */ - } - else - { - if (!vtep6_check (&vxm->vtep_table, b0, ip60, &last_vtep6)) - goto exit0; /* no local VTEP for VXLAN packet */ - } - - 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 (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-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); - - u32 fi1 = vlib_buffer_get_ip_fib_index (b1, is_ip4); - vxlan1 = vlib_buffer_get_current (b1) + sizeof (udp_header_t) + - sizeof (ip4_header_t); - - vxlan_decap_info_t di1 = - is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi1, ip41, vxlan1, &stats_if1) : - vxlan6_find_tunnel (vxm, &last6, fi1, ip61, vxlan1, &stats_if1); - - if (PREDICT_FALSE (di1.sw_if_index == ~0)) - goto exit1; /* unknown interface */ - - /* Validate DIP against VTEPs */ - if (is_ip4) - { -#ifdef CLIB_HAVE_VEC512 - if (!vtep4_check_vector (&vxm->vtep_table, b1, ip41, &last_vtep4, - &vxm->vtep4_u512)) -#else - if (!vtep4_check (&vxm->vtep_table, b1, ip41, &last_vtep4)) -#endif - goto exit1; /* no local VTEP for VXLAN packet */ - } - else - { - if (!vtep6_check (&vxm->vtep_table, b1, ip61, &last_vtep6)) - goto exit1; /* no local VTEP for VXLAN packet */ - } - - 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 (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-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; - vxlan_header_t *vxlan0; - u32 bi0, ip_len0, udp_len0, flags0, next0; - i32 len_diff0; - u8 error0, good_udp0, proto0; - u32 stats_if0 = ~0; - - bi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - b0 = b[0]; - b++; - 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 (&next0, b0); - - if (is_ip4) - /* Treat IP4 frag packets as "experimental" protocol for now - until support of IP frag reassembly is implemented */ - proto0 = ip4_is_fragment (ip40) ? 0xfe : 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); - - u32 fi0 = vlib_buffer_get_ip_fib_index (b0, is_ip4); - vxlan0 = vlib_buffer_get_current (b0) + sizeof (udp_header_t) + - sizeof (ip4_header_t); - - vxlan_decap_info_t di0 = - is_ip4 ? - vxlan4_find_tunnel (vxm, &last4, fi0, ip40, vxlan0, &stats_if0) : - vxlan6_find_tunnel (vxm, &last6, fi0, ip60, vxlan0, &stats_if0); - - if (PREDICT_FALSE (di0.sw_if_index == ~0)) - goto exit; /* unknown interface */ - - /* Validate DIP against VTEPs */ - if (is_ip4) - { -#ifdef CLIB_HAVE_VEC512 - if (!vtep4_check_vector (&vxm->vtep_table, b0, ip40, &last_vtep4, - &vxm->vtep4_u512)) -#else - if (!vtep4_check (&vxm->vtep_table, b0, ip40, &last_vtep4)) -#endif - goto exit; /* no local VTEP for VXLAN packet */ - } - else - { - if (!vtep6_check (&vxm->vtep_table, b0, ip60, &last_vtep6)) - goto exit; /* no local VTEP for VXLAN packet */ - } - - 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 (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-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; -} - -VLIB_NODE_FN (ip4_vxlan_bypass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return ip_vxlan_bypass_inline (vm, node, frame, /* is_ip4 */ 1); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_vxlan_bypass_node) = -{ - .name = "ip4-vxlan-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-input", - }, - .format_buffer = format_ip4_header, - .format_trace = format_ip4_forward_next_trace, -}; - -/* *INDENT-ON* */ - -/* Dummy init function to get us linked in. */ -static clib_error_t * -ip4_vxlan_bypass_init (vlib_main_t * vm) -{ - return 0; -} - -VLIB_INIT_FUNCTION (ip4_vxlan_bypass_init); - -VLIB_NODE_FN (ip6_vxlan_bypass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return ip_vxlan_bypass_inline (vm, node, frame, /* is_ip4 */ 0); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip6_vxlan_bypass_node) = -{ - .name = "ip6-vxlan-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-input", - }, - .format_buffer = format_ip6_header, - .format_trace = format_ip6_forward_next_trace, -}; - -/* *INDENT-ON* */ - -/* Dummy init function to get us linked in. */ -static clib_error_t * -ip6_vxlan_bypass_init (vlib_main_t * vm) -{ - return 0; -} - -VLIB_INIT_FUNCTION (ip6_vxlan_bypass_init); - -#define foreach_vxlan_flow_input_next \ -_(DROP, "error-drop") \ -_(L2_INPUT, "l2-input") - -typedef enum -{ -#define _(s,n) VXLAN_FLOW_NEXT_##s, - foreach_vxlan_flow_input_next -#undef _ - VXLAN_FLOW_N_NEXT, -} vxlan_flow_input_next_t; - -#define foreach_vxlan_flow_error \ - _(NONE, "no error") \ - _(IP_CHECKSUM_ERROR, "Rx ip checksum errors") \ - _(IP_HEADER_ERROR, "Rx ip header errors") \ - _(UDP_CHECKSUM_ERROR, "Rx udp checksum errors") \ - _(UDP_LENGTH_ERROR, "Rx udp length errors") - -typedef enum -{ -#define _(f,s) VXLAN_FLOW_ERROR_##f, - foreach_vxlan_flow_error -#undef _ - VXLAN_FLOW_N_ERROR, -} vxlan_flow_error_t; - -static char *vxlan_flow_error_strings[] = { -#define _(n,s) s, - foreach_vxlan_flow_error -#undef _ -}; - - -static_always_inline u8 -vxlan_validate_udp_csum (vlib_main_t * vm, vlib_buffer_t * b) -{ - u32 flags = b->flags; - enum - { offset = - sizeof (ip4_header_t) + sizeof (udp_header_t) + sizeof (vxlan_header_t), - }; - - /* Verify UDP checksum */ - if ((flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0) - { - vlib_buffer_advance (b, -offset); - flags = ip4_tcp_udp_validate_checksum (vm, b); - vlib_buffer_advance (b, offset); - } - - return (flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0; -} - -static_always_inline u8 -vxlan_check_udp_csum (vlib_main_t * vm, vlib_buffer_t * b) -{ - ip4_vxlan_header_t *hdr = vlib_buffer_get_current (b) - sizeof *hdr; - udp_header_t *udp = &hdr->udp; - /* Don't verify UDP checksum for packets with explicit zero checksum. */ - u8 good_csum = (b->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0 || - udp->checksum == 0; - - return !good_csum; -} - -static_always_inline u8 -vxlan_check_ip (vlib_buffer_t * b, u16 payload_len) -{ - ip4_vxlan_header_t *hdr = vlib_buffer_get_current (b) - sizeof *hdr; - u16 ip_len = clib_net_to_host_u16 (hdr->ip4.length); - u16 expected = payload_len + sizeof *hdr; - return ip_len > expected || hdr->ip4.ttl == 0 - || hdr->ip4.ip_version_and_header_length != 0x45; -} - -static_always_inline u8 -vxlan_check_ip_udp_len (vlib_buffer_t * b) -{ - ip4_vxlan_header_t *hdr = vlib_buffer_get_current (b) - sizeof *hdr; - u16 ip_len = clib_net_to_host_u16 (hdr->ip4.length); - u16 udp_len = clib_net_to_host_u16 (hdr->udp.length); - return udp_len > ip_len; -} - -static_always_inline u8 -vxlan_err_code (u8 ip_err0, u8 udp_err0, u8 csum_err0) -{ - u8 error0 = VXLAN_FLOW_ERROR_NONE; - if (ip_err0) - error0 = VXLAN_FLOW_ERROR_IP_HEADER_ERROR; - if (udp_err0) - error0 = VXLAN_FLOW_ERROR_UDP_LENGTH_ERROR; - if (csum_err0) - error0 = VXLAN_FLOW_ERROR_UDP_CHECKSUM_ERROR; - return error0; -} - -VLIB_NODE_FN (vxlan4_flow_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * f) -{ - enum - { payload_offset = sizeof (ip4_vxlan_header_t) }; - - vxlan_main_t *vxm = &vxlan_main; - vnet_interface_main_t *im = &vnet_main.interface_main; - vlib_combined_counter_main_t *rx_counter[VXLAN_FLOW_N_NEXT] = { - [VXLAN_FLOW_NEXT_DROP] = - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP, - [VXLAN_FLOW_NEXT_L2_INPUT] = - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, - }; - u32 thread_index = vlib_get_thread_index (); - - u32 *from = vlib_frame_vector_args (f); - u32 n_left_from = f->n_vectors; - u32 next_index = VXLAN_FLOW_NEXT_L2_INPUT; - - while (n_left_from > 0) - { - u32 n_left_to_next, *to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 3 && n_left_to_next > 3) - { - u32 bi0 = to_next[0] = from[0]; - u32 bi1 = to_next[1] = from[1]; - u32 bi2 = to_next[2] = from[2]; - u32 bi3 = to_next[3] = from[3]; - from += 4; - n_left_from -= 4; - to_next += 4; - n_left_to_next -= 4; - - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - vlib_buffer_t *b1 = vlib_get_buffer (vm, bi1); - vlib_buffer_t *b2 = vlib_get_buffer (vm, bi2); - vlib_buffer_t *b3 = vlib_get_buffer (vm, bi3); - - vlib_buffer_advance (b0, payload_offset); - vlib_buffer_advance (b1, payload_offset); - vlib_buffer_advance (b2, payload_offset); - vlib_buffer_advance (b3, payload_offset); - - u16 len0 = vlib_buffer_length_in_chain (vm, b0); - u16 len1 = vlib_buffer_length_in_chain (vm, b1); - u16 len2 = vlib_buffer_length_in_chain (vm, b2); - u16 len3 = vlib_buffer_length_in_chain (vm, b3); - - u32 next0 = VXLAN_FLOW_NEXT_L2_INPUT, next1 = - VXLAN_FLOW_NEXT_L2_INPUT, next2 = - VXLAN_FLOW_NEXT_L2_INPUT, next3 = VXLAN_FLOW_NEXT_L2_INPUT; - - u8 ip_err0 = vxlan_check_ip (b0, len0); - u8 ip_err1 = vxlan_check_ip (b1, len1); - u8 ip_err2 = vxlan_check_ip (b2, len2); - u8 ip_err3 = vxlan_check_ip (b3, len3); - u8 ip_err = ip_err0 | ip_err1 | ip_err2 | ip_err3; - - u8 udp_err0 = vxlan_check_ip_udp_len (b0); - u8 udp_err1 = vxlan_check_ip_udp_len (b1); - u8 udp_err2 = vxlan_check_ip_udp_len (b2); - u8 udp_err3 = vxlan_check_ip_udp_len (b3); - u8 udp_err = udp_err0 | udp_err1 | udp_err2 | udp_err3; - - u8 csum_err0 = vxlan_check_udp_csum (vm, b0); - u8 csum_err1 = vxlan_check_udp_csum (vm, b1); - u8 csum_err2 = vxlan_check_udp_csum (vm, b2); - u8 csum_err3 = vxlan_check_udp_csum (vm, b3); - u8 csum_err = csum_err0 | csum_err1 | csum_err2 | csum_err3; - - if (PREDICT_FALSE (csum_err)) - { - if (csum_err0) - csum_err0 = !vxlan_validate_udp_csum (vm, b0); - if (csum_err1) - csum_err1 = !vxlan_validate_udp_csum (vm, b1); - if (csum_err2) - csum_err2 = !vxlan_validate_udp_csum (vm, b2); - if (csum_err3) - csum_err3 = !vxlan_validate_udp_csum (vm, b3); - csum_err = csum_err0 | csum_err1 | csum_err2 | csum_err3; - } - - if (PREDICT_FALSE (ip_err || udp_err || csum_err)) - { - if (ip_err0 || udp_err0 || csum_err0) - { - next0 = VXLAN_FLOW_NEXT_DROP; - u8 error0 = vxlan_err_code (ip_err0, udp_err0, csum_err0); - b0->error = node->errors[error0]; - } - if (ip_err1 || udp_err1 || csum_err1) - { - next1 = VXLAN_FLOW_NEXT_DROP; - u8 error1 = vxlan_err_code (ip_err1, udp_err1, csum_err1); - b1->error = node->errors[error1]; - } - if (ip_err2 || udp_err2 || csum_err2) - { - next2 = VXLAN_FLOW_NEXT_DROP; - u8 error2 = vxlan_err_code (ip_err2, udp_err2, csum_err2); - b2->error = node->errors[error2]; - } - if (ip_err3 || udp_err3 || csum_err3) - { - next3 = VXLAN_FLOW_NEXT_DROP; - u8 error3 = vxlan_err_code (ip_err3, udp_err3, csum_err3); - b3->error = node->errors[error3]; - } - } - - vnet_update_l2_len (b0); - vnet_update_l2_len (b1); - vnet_update_l2_len (b2); - vnet_update_l2_len (b3); - - ASSERT (b0->flow_id != 0); - ASSERT (b1->flow_id != 0); - ASSERT (b2->flow_id != 0); - ASSERT (b3->flow_id != 0); - - u32 t_index0 = b0->flow_id - vxm->flow_id_start; - u32 t_index1 = b1->flow_id - vxm->flow_id_start; - u32 t_index2 = b2->flow_id - vxm->flow_id_start; - u32 t_index3 = b3->flow_id - vxm->flow_id_start; - - vxlan_tunnel_t *t0 = &vxm->tunnels[t_index0]; - vxlan_tunnel_t *t1 = &vxm->tunnels[t_index1]; - vxlan_tunnel_t *t2 = &vxm->tunnels[t_index2]; - vxlan_tunnel_t *t3 = &vxm->tunnels[t_index3]; - - /* flow id consumed */ - b0->flow_id = 0; - b1->flow_id = 0; - b2->flow_id = 0; - b3->flow_id = 0; - - u32 sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX] = - t0->sw_if_index; - u32 sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX] = - t1->sw_if_index; - u32 sw_if_index2 = vnet_buffer (b2)->sw_if_index[VLIB_RX] = - t2->sw_if_index; - u32 sw_if_index3 = vnet_buffer (b3)->sw_if_index[VLIB_RX] = - t3->sw_if_index; - - vlib_increment_combined_counter (rx_counter[next0], thread_index, - sw_if_index0, 1, len0); - vlib_increment_combined_counter (rx_counter[next1], thread_index, - sw_if_index1, 1, len1); - vlib_increment_combined_counter (rx_counter[next2], thread_index, - sw_if_index2, 1, len2); - vlib_increment_combined_counter (rx_counter[next3], thread_index, - sw_if_index3, 1, len3); - - u32 flags = b0->flags | b1->flags | b2->flags | b3->flags; - - if (PREDICT_FALSE (flags & VLIB_BUFFER_IS_TRACED)) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b0, sizeof *tr); - u8 error0 = vxlan_err_code (ip_err0, udp_err0, csum_err0); - tr->next_index = next0; - tr->error = error0; - tr->tunnel_index = t_index0; - tr->vni = t0->vni; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b1, sizeof *tr); - u8 error1 = vxlan_err_code (ip_err1, udp_err1, csum_err1); - tr->next_index = next1; - tr->error = error1; - tr->tunnel_index = t_index1; - tr->vni = t1->vni; - } - if (b2->flags & VLIB_BUFFER_IS_TRACED) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b2, sizeof *tr); - u8 error2 = vxlan_err_code (ip_err2, udp_err2, csum_err2); - tr->next_index = next2; - tr->error = error2; - tr->tunnel_index = t_index2; - tr->vni = t2->vni; - } - if (b3->flags & VLIB_BUFFER_IS_TRACED) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b3, sizeof *tr); - u8 error3 = vxlan_err_code (ip_err3, udp_err3, csum_err3); - tr->next_index = next3; - tr->error = error3; - tr->tunnel_index = t_index3; - tr->vni = t3->vni; - } - } - vlib_validate_buffer_enqueue_x4 - (vm, node, next_index, to_next, n_left_to_next, - bi0, bi1, bi2, bi3, next0, next1, next2, next3); - } - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0 = to_next[0] = from[0]; - from++; - n_left_from--; - to_next++; - n_left_to_next--; - - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - vlib_buffer_advance (b0, payload_offset); - - u16 len0 = vlib_buffer_length_in_chain (vm, b0); - u32 next0 = VXLAN_FLOW_NEXT_L2_INPUT; - - u8 ip_err0 = vxlan_check_ip (b0, len0); - u8 udp_err0 = vxlan_check_ip_udp_len (b0); - u8 csum_err0 = vxlan_check_udp_csum (vm, b0); - - if (csum_err0) - csum_err0 = !vxlan_validate_udp_csum (vm, b0); - if (ip_err0 || udp_err0 || csum_err0) - { - next0 = VXLAN_FLOW_NEXT_DROP; - u8 error0 = vxlan_err_code (ip_err0, udp_err0, csum_err0); - b0->error = node->errors[error0]; - } - - vnet_update_l2_len (b0); - - ASSERT (b0->flow_id != 0); - u32 t_index0 = b0->flow_id - vxm->flow_id_start; - vxlan_tunnel_t *t0 = &vxm->tunnels[t_index0]; - b0->flow_id = 0; - - u32 sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX] = - t0->sw_if_index; - vlib_increment_combined_counter (rx_counter[next0], thread_index, - sw_if_index0, 1, len0); - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr = - vlib_add_trace (vm, node, b0, sizeof *tr); - u8 error0 = vxlan_err_code (ip_err0, udp_err0, csum_err0); - tr->next_index = next0; - tr->error = error0; - tr->tunnel_index = t_index0; - tr->vni = t0->vni; - } - 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 f->n_vectors; -} - -/* *INDENT-OFF* */ -#ifndef CLIB_MULTIARCH_VARIANT -VLIB_REGISTER_NODE (vxlan4_flow_input_node) = { - .name = "vxlan-flow-input", - .type = VLIB_NODE_TYPE_INTERNAL, - .vector_size = sizeof (u32), - - .format_trace = format_vxlan_rx_trace, - - .n_errors = VXLAN_FLOW_N_ERROR, - .error_strings = vxlan_flow_error_strings, - - .n_next_nodes = VXLAN_FLOW_N_NEXT, - .next_nodes = { -#define _(s,n) [VXLAN_FLOW_NEXT_##s] = n, - foreach_vxlan_flow_input_next -#undef _ - }, -}; -#endif -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |