diff options
Diffstat (limited to 'src/vnet/vxlan/decap.c')
| -rw-r--r-- | src/vnet/vxlan/decap.c | 1310 |
1 files changed, 690 insertions, 620 deletions
diff --git a/src/vnet/vxlan/decap.c b/src/vnet/vxlan/decap.c index 20df5e2c131..a4cbd4a4f41 100644 --- a/src/vnet/vxlan/decap.c +++ b/src/vnet/vxlan/decap.c @@ -22,40 +22,36 @@ vlib_node_registration_t vxlan4_input_node; vlib_node_registration_t vxlan6_input_node; -typedef struct { +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) +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 *); + vxlan_rx_trace_t *t = va_arg (*args, vxlan_rx_trace_t *); - if (t->tunnel_index != ~0) - { - s = format (s, "VXLAN decap from vxlan_tunnel%d vni %d next %d error %d", - t->tunnel_index, t->vni, t->next_index, t->error); - } - else - { - s = format (s, "VXLAN decap error - tunnel for vni %d does not exist", - t->vni); - } - return s; + 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); } always_inline u32 -buf_fib_index (vlib_buffer_t *b, u32 is_ip4) +buf_fib_index (vlib_buffer_t * b, u32 is_ip4) { u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX]; if (sw_if_index != (u32) ~ 0) return sw_if_index; - u32 * fib_index_by_sw_if_index = is_ip4 ? + u32 *fib_index_by_sw_if_index = is_ip4 ? ip4_main.fib_index_by_sw_if_index : ip6_main.fib_index_by_sw_if_index; sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX]; @@ -66,44 +62,47 @@ typedef vxlan4_tunnel_key_t last_tunnel_cache4; always_inline vxlan_tunnel_t * vxlan4_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache4 * cache, - u32 fib_index, ip4_header_t * ip4_0, vxlan_header_t * vxlan0, - vxlan_tunnel_t ** stats_t0) + u32 fib_index, ip4_header_t * ip4_0, + vxlan_header_t * vxlan0, vxlan_tunnel_t ** stats_t0) { /* Make sure VXLAN tunnel exist according to packet SIP and VNI */ vxlan4_tunnel_key_t key4 = { .key = { - [0] = ip4_0->src_address.as_u32, - [1] = (((u64) fib_index) << 32) | vxlan0->vni_reserved, - } + [0] = ip4_0->src_address.as_u32, + [1] = (((u64) fib_index) << 32) | vxlan0->vni_reserved, + } }; - if (PREDICT_FALSE (clib_bihash_key_compare_16_8 (key4.key, cache->key) == 0)) - { - int rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); - if (PREDICT_FALSE (rv != 0)) - return 0; + if (PREDICT_FALSE + (clib_bihash_key_compare_16_8 (key4.key, cache->key) == 0)) + { + int rv = + clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); + if (PREDICT_FALSE (rv != 0)) + return 0; - *cache = key4; - } - vxlan_tunnel_t * t0 = pool_elt_at_index (vxm->tunnels, cache->value); + *cache = key4; + } + vxlan_tunnel_t *t0 = pool_elt_at_index (vxm->tunnels, cache->value); /* Validate VXLAN tunnel SIP against packet DIP */ if (PREDICT_TRUE (ip4_0->dst_address.as_u32 == t0->src.ip4.as_u32)) *stats_t0 = t0; else - { - /* try multicast */ - if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address))) - return 0; - - key4.key[0] = ip4_0->dst_address.as_u32; - /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */ - int rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); - if (PREDICT_FALSE (rv != 0)) - return 0; - - *stats_t0 = pool_elt_at_index (vxm->tunnels, key4.value); - } + { + /* try multicast */ + if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address))) + return 0; + + key4.key[0] = ip4_0->dst_address.as_u32; + /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */ + int rv = + clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); + if (PREDICT_FALSE (rv != 0)) + return 0; + + *stats_t0 = pool_elt_at_index (vxm->tunnels, key4.value); + } return t0; } @@ -112,66 +111,70 @@ typedef vxlan6_tunnel_key_t last_tunnel_cache6; always_inline vxlan_tunnel_t * vxlan6_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache6 * cache, - u32 fib_index, ip6_header_t * ip6_0, vxlan_header_t * vxlan0, - vxlan_tunnel_t ** stats_t0) + u32 fib_index, ip6_header_t * ip6_0, + vxlan_header_t * vxlan0, vxlan_tunnel_t ** stats_t0) { /* Make sure VXLAN tunnel exist according to packet SIP and VNI */ vxlan6_tunnel_key_t key6 = { .key = { - [0] = ip6_0->src_address.as_u64[0], - [1] = ip6_0->src_address.as_u64[1], - [2] = (((u64) fib_index) << 32) | vxlan0->vni_reserved, - } + [0] = ip6_0->src_address.as_u64[0], + [1] = ip6_0->src_address.as_u64[1], + [2] = (((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 0; + 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 0; - *cache = key6; - } - vxlan_tunnel_t * t0 = pool_elt_at_index (vxm->tunnels, cache->value); + *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_t0 = t0; else - { - /* try multicast */ - if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address))) - return 0; - - /* 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 0; - - *stats_t0 = pool_elt_at_index (vxm->tunnels, key6.value); - } + { + /* try multicast */ + if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address))) + return 0; + + /* 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 0; + + *stats_t0 = pool_elt_at_index (vxm->tunnels, key6.value); + } return t0; } always_inline uword vxlan_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, - u32 is_ip4) + 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; - vlib_combined_counter_main_t * drop_counter = im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP; + 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; + vlib_combined_counter_main_t *drop_counter = + im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP; last_tunnel_cache4 last4; last_tunnel_cache6 last6; u32 pkts_decapsulated = 0; - u32 thread_index = vlib_get_thread_index(); + u32 thread_index = vlib_get_thread_index (); if (is_ip4) memset (&last4, 0xff, sizeof last4); @@ -180,19 +183,19 @@ vxlan_input (vlib_main_t * vm, u32 next_index = node->cached_next_index; - u32 * from = vlib_frame_vector_args (from_frame); + u32 *from = vlib_frame_vector_args (from_frame); u32 n_left_from = from_frame->n_vectors; while (n_left_from > 0) { - u32 * to_next, n_left_to_next; + u32 *to_next, n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -200,8 +203,8 @@ vxlan_input (vlib_main_t * vm, 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); + CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); } u32 bi0 = to_next[0] = from[0]; @@ -211,128 +214,143 @@ vxlan_input (vlib_main_t * vm, n_left_to_next -= 2; n_left_from -= 2; - vlib_buffer_t * b0, * b1; + vlib_buffer_t *b0, *b1; b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); - /* udp leaves current_data pointing at the vxlan header */ - void * cur0 = vlib_buffer_get_current (b0); - void * cur1 = vlib_buffer_get_current (b1); - 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); - } + /* udp leaves current_data pointing at the vxlan header */ + void *cur0 = vlib_buffer_get_current (b0); + void *cur1 = vlib_buffer_get_current (b1); + vxlan_header_t *vxlan0 = cur0; + vxlan_header_t *vxlan1 = cur1; - /* pop vxlan */ - vlib_buffer_advance (b0, sizeof *vxlan0); + 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 (b0, sizeof *vxlan0); vlib_buffer_advance (b1, sizeof *vxlan1); - u32 fi0 = buf_fib_index(b0, is_ip4); - u32 fi1 = buf_fib_index(b1, is_ip4); - - vxlan_tunnel_t * t0, * stats_t0; - vxlan_tunnel_t * t1, * stats_t1; - if (is_ip4) - { - t0 = vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, &stats_t0); - t1 = vxlan4_find_tunnel (vxm, &last4, fi1, ip4_1, vxlan1, &stats_t1); - } - else - { - t0 = vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, &stats_t0); - t1 = vxlan6_find_tunnel (vxm, &last6, fi1, ip6_1, vxlan1, &stats_t1); - } - - u32 len0 = vlib_buffer_length_in_chain (vm, b0); - u32 len1 = vlib_buffer_length_in_chain (vm, b1); + u32 fi0 = buf_fib_index (b0, is_ip4); + u32 fi1 = buf_fib_index (b1, is_ip4); + + vxlan_tunnel_t *t0, *stats_t0; + vxlan_tunnel_t *t1, *stats_t1; + if (is_ip4) + { + t0 = + vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, + &stats_t0); + t1 = + vxlan4_find_tunnel (vxm, &last4, fi1, ip4_1, vxlan1, + &stats_t1); + } + else + { + t0 = + vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, + &stats_t0); + t1 = + vxlan6_find_tunnel (vxm, &last6, fi1, ip6_1, vxlan1, + &stats_t1); + } + + u32 len0 = vlib_buffer_length_in_chain (vm, b0); + u32 len1 = vlib_buffer_length_in_chain (vm, b1); u32 next0, next1; - u8 error0 = 0, error1 = 0; - /* Validate VXLAN tunnel encap-fib index agaist packet */ - if (PREDICT_FALSE (t0 == 0 || vxlan0->flags != VXLAN_FLAGS_I)) - { - next0 = VXLAN_INPUT_NEXT_DROP; - - if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I) - { - error0 = VXLAN_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, stats_t0->sw_if_index, 1, len0); - } - else - error0 = VXLAN_ERROR_NO_SUCH_TUNNEL; - b0->error = node->errors[error0]; - } - else - { - next0 = t0->decap_next_index; - - /* Required to make the l2 tag push / pop code work on l2 subifs */ - if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT)) - vnet_update_l2_len (b0); - - /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ - vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index; - vlib_increment_combined_counter - (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0); - pkts_decapsulated++; - } - - /* Validate VXLAN tunnel encap-fib index agaist packet */ - if (PREDICT_FALSE (t1 == 0 || vxlan1->flags != VXLAN_FLAGS_I)) - { - next1 = VXLAN_INPUT_NEXT_DROP; - - if (t1 != 0 && vxlan1->flags != VXLAN_FLAGS_I) - { - error1 = VXLAN_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, stats_t1->sw_if_index, 1, len1); - } - else - error1 = VXLAN_ERROR_NO_SUCH_TUNNEL; - b1->error = node->errors[error1]; - } - else - { - next1 = t1->decap_next_index; - - /* Required to make the l2 tag push / pop code work on l2 subifs */ - if (PREDICT_TRUE(next1 == VXLAN_INPUT_NEXT_L2_INPUT)) - vnet_update_l2_len (b1); - - /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ - vnet_buffer(b1)->sw_if_index[VLIB_RX] = t1->sw_if_index; - pkts_decapsulated++; - - vlib_increment_combined_counter - (rx_counter, thread_index, stats_t1->sw_if_index, 1, len1); - } - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); - tr->next_index = next0; - tr->error = error0; - tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels; - tr->vni = vnet_get_vni (vxlan0); - } - if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr = vlib_add_trace (vm, node, b1, sizeof (*tr)); - tr->next_index = next1; - tr->error = error1; - tr->tunnel_index = t1 == 0 ? ~0 : t1 - vxm->tunnels; - tr->vni = vnet_get_vni (vxlan1); - } + u8 error0 = 0, error1 = 0; + /* Validate VXLAN tunnel encap-fib index agaist packet */ + if (PREDICT_FALSE (t0 == 0 || vxlan0->flags != VXLAN_FLAGS_I)) + { + next0 = VXLAN_INPUT_NEXT_DROP; + + if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I) + { + error0 = VXLAN_ERROR_BAD_FLAGS; + vlib_increment_combined_counter + (drop_counter, thread_index, stats_t0->sw_if_index, 1, + len0); + } + else + error0 = VXLAN_ERROR_NO_SUCH_TUNNEL; + b0->error = node->errors[error0]; + } + else + { + next0 = t0->decap_next_index; + + /* Required to make the l2 tag push / pop code work on l2 subifs */ + if (PREDICT_TRUE (next0 == VXLAN_INPUT_NEXT_L2_INPUT)) + vnet_update_l2_len (b0); + + /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ + vnet_buffer (b0)->sw_if_index[VLIB_RX] = t0->sw_if_index; + vlib_increment_combined_counter + (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0); + pkts_decapsulated++; + } + + /* Validate VXLAN tunnel encap-fib index agaist packet */ + if (PREDICT_FALSE (t1 == 0 || vxlan1->flags != VXLAN_FLAGS_I)) + { + next1 = VXLAN_INPUT_NEXT_DROP; + + if (t1 != 0 && vxlan1->flags != VXLAN_FLAGS_I) + { + error1 = VXLAN_ERROR_BAD_FLAGS; + vlib_increment_combined_counter + (drop_counter, thread_index, stats_t1->sw_if_index, 1, + len1); + } + else + error1 = VXLAN_ERROR_NO_SUCH_TUNNEL; + b1->error = node->errors[error1]; + } + else + { + next1 = t1->decap_next_index; + + /* Required to make the l2 tag push / pop code work on l2 subifs */ + if (PREDICT_TRUE (next1 == VXLAN_INPUT_NEXT_L2_INPUT)) + vnet_update_l2_len (b1); + + /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ + vnet_buffer (b1)->sw_if_index[VLIB_RX] = t1->sw_if_index; + pkts_decapsulated++; + + vlib_increment_combined_counter + (rx_counter, thread_index, stats_t1->sw_if_index, 1, len1); + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_rx_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->next_index = next0; + tr->error = error0; + tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels; + tr->vni = vnet_get_vni (vxlan0); + } + if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_rx_trace_t *tr = + vlib_add_trace (vm, node, b1, sizeof (*tr)); + tr->next_index = next1; + tr->error = error1; + tr->tunnel_index = t1 == 0 ? ~0 : t1 - vxm->tunnels; + tr->vni = vnet_get_vni (vxlan1); + } vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, @@ -347,73 +365,76 @@ vxlan_input (vlib_main_t * vm, n_left_from -= 1; n_left_to_next -= 1; - vlib_buffer_t * b0 = vlib_get_buffer (vm, bi0); + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - /* udp leaves current_data pointing at the vxlan header */ - void * cur0 = vlib_buffer_get_current (b0); - 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); + /* udp leaves current_data pointing at the vxlan header */ + void *cur0 = vlib_buffer_get_current (b0); + 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 (b0, sizeof(*vxlan0)); + /* pop (ip, udp, vxlan) */ + vlib_buffer_advance (b0, sizeof (*vxlan0)); - u32 fi0 = buf_fib_index(b0, is_ip4); + u32 fi0 = buf_fib_index (b0, is_ip4); - vxlan_tunnel_t * t0, * stats_t0; - if (is_ip4) - t0 = vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, &stats_t0); - else - t0 = vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, &stats_t0); + vxlan_tunnel_t *t0, *stats_t0; + if (is_ip4) + t0 = + vxlan4_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan0, &stats_t0); + else + t0 = + vxlan6_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan0, &stats_t0); - uword len0 = vlib_buffer_length_in_chain (vm, b0); + uword len0 = vlib_buffer_length_in_chain (vm, b0); u32 next0; - u8 error0 = 0; - /* Validate VXLAN tunnel encap-fib index agaist packet */ - if (PREDICT_FALSE (t0 == 0 || vxlan0->flags != VXLAN_FLAGS_I)) - { - next0 = VXLAN_INPUT_NEXT_DROP; - - if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I) - { - error0 = VXLAN_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, stats_t0->sw_if_index, 1, len0); - } - else - error0 = VXLAN_ERROR_NO_SUCH_TUNNEL; - b0->error = node->errors[error0]; - } - else - { - next0 = t0->decap_next_index; - - /* Required to make the l2 tag push / pop code work on l2 subifs */ - if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT)) - vnet_update_l2_len (b0); - - /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ - vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index; - pkts_decapsulated++; - - vlib_increment_combined_counter - (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0); - } - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_rx_trace_t *tr - = vlib_add_trace (vm, node, b0, sizeof (*tr)); - tr->next_index = next0; - tr->error = error0; - tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels; - tr->vni = vnet_get_vni (vxlan0); - } + u8 error0 = 0; + /* Validate VXLAN tunnel encap-fib index agaist packet */ + if (PREDICT_FALSE (t0 == 0 || vxlan0->flags != VXLAN_FLAGS_I)) + { + next0 = VXLAN_INPUT_NEXT_DROP; + + if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I) + { + error0 = VXLAN_ERROR_BAD_FLAGS; + vlib_increment_combined_counter + (drop_counter, thread_index, stats_t0->sw_if_index, 1, + len0); + } + else + error0 = VXLAN_ERROR_NO_SUCH_TUNNEL; + b0->error = node->errors[error0]; + } + else + { + next0 = t0->decap_next_index; + + /* Required to make the l2 tag push / pop code work on l2 subifs */ + if (PREDICT_TRUE (next0 == VXLAN_INPUT_NEXT_L2_INPUT)) + vnet_update_l2_len (b0); + + /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */ + vnet_buffer (b0)->sw_if_index[VLIB_RX] = t0->sw_if_index; + pkts_decapsulated++; + + vlib_increment_combined_counter + (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0); + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + vxlan_rx_trace_t *tr + = vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->next_index = next0; + tr->error = error0; + tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels; + tr->vni = vnet_get_vni (vxlan0); + } vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); @@ -424,82 +445,70 @@ vxlan_input (vlib_main_t * vm, /* 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, - pkts_decapsulated); + pkts_decapsulated); return from_frame->n_vectors; } static uword vxlan4_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return vxlan_input(vm, node, from_frame, /* is_ip4 */ 1); + return vxlan_input (vm, node, from_frame, /* is_ip4 */ 1); } static uword vxlan6_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return vxlan_input(vm, node, from_frame, /* is_ip4 */ 0); + return vxlan_input (vm, node, from_frame, /* is_ip4 */ 0); } -static char * vxlan_error_strings[] = { +static char *vxlan_error_strings[] = { #define vxlan_error(n,s) s, #include <vnet/vxlan/vxlan_error.def> #undef vxlan_error #undef _ }; -VLIB_REGISTER_NODE (vxlan4_input_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (vxlan4_input_node) = +{ .function = vxlan4_input, .name = "vxlan4-input", - /* Takes a vector of packets. */ .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 _ }, - -//temp .format_buffer = format_vxlan_header, - .format_trace = format_vxlan_rx_trace, - // $$$$ .unformat_buffer = unformat_vxlan_header, }; - VLIB_NODE_FUNCTION_MULTIARCH (vxlan4_input_node, vxlan4_input) -VLIB_REGISTER_NODE (vxlan6_input_node) = { +VLIB_REGISTER_NODE (vxlan6_input_node) = +{ .function = vxlan6_input, .name = "vxlan6-input", - /* Takes a vector of packets. */ .vector_size = sizeof (u32), - .n_errors = VXLAN_N_ERROR, .error_strings = vxlan_error_strings, - .n_next_nodes = VXLAN_INPUT_N_NEXT, .next_nodes = { #define _(s,n) [VXLAN_INPUT_NEXT_##s] = n, foreach_vxlan_input_next #undef _ }, - -//temp .format_buffer = format_vxlan_header, .format_trace = format_vxlan_rx_trace, - // $$$$ .unformat_buffer = unformat_vxlan_header, }; - VLIB_NODE_FUNCTION_MULTIARCH (vxlan6_input_node, vxlan6_input) +/* *INDENT-ON* */ - -typedef enum { +typedef enum +{ IP_VXLAN_BYPASS_NEXT_DROP, IP_VXLAN_BYPASS_NEXT_VXLAN, IP_VXLAN_BYPASS_N_NEXT, @@ -508,14 +517,14 @@ typedef enum { always_inline uword ip_vxlan_bypass_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - u32 is_ip4) + 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); - ip4_address_t addr4; /* last IPv4 address matching a local VTEP address */ - ip6_address_t addr6; /* last IPv6 address matching a local VTEP address */ + 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); + 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; @@ -524,28 +533,30 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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); + 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; + { + 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; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -553,16 +564,16 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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); + 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; + 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); @@ -578,15 +589,15 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, } /* Setup packet for next IP feature */ - vnet_feature_next(&next0, b0); - vnet_feature_next(&next1, b1); + 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; + 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 { @@ -596,7 +607,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, /* Process packet 0 */ if (proto0 != IP_PROTOCOL_UDP) - goto exit0; /* not UDP packet */ + goto exit0; /* not UDP packet */ if (is_ip4) udp0 = ip4_next_header (ip40); @@ -604,26 +615,26 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, udp0 = ip6_next_header (ip60); if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan)) - goto exit0; /* not VXLAN packet */ + goto exit0; /* not VXLAN packet */ - /* Validate DIP against VTEPs*/ + /* Validate DIP against VTEPs */ if (is_ip4) { if (addr4.as_u32 != ip40->dst_address.as_u32) - { + { if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32)) - goto exit0; /* no local VTEP for VXLAN packet */ + 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 (vxm->vtep6, &ip60->dst_address)) - goto exit0; /* no local VTEP for VXLAN packet */ + goto exit0; /* no local VTEP for VXLAN packet */ addr6 = ip60->dst_address; - } + } } flags0 = b0->flags; @@ -644,14 +655,14 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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) @@ -671,14 +682,18 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, /* vxlan-input node expect current at VXLAN header */ if (is_ip4) - vlib_buffer_advance (b0, sizeof(ip4_header_t)+sizeof(udp_header_t)); + 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)); + 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 */ + goto exit1; /* not UDP packet */ if (is_ip4) udp1 = ip4_next_header (ip41); @@ -686,24 +701,24 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, udp1 = ip6_next_header (ip61); if (udp1->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan)) - goto exit1; /* not VXLAN packet */ + goto exit1; /* not VXLAN packet */ - /* Validate DIP against VTEPs*/ + /* Validate DIP against VTEPs */ if (is_ip4) { if (addr4.as_u32 != ip41->dst_address.as_u32) - { + { if (!hash_get (vxm->vtep4, ip41->dst_address.as_u32)) - goto exit1; /* no local VTEP for VXLAN packet */ + 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 (vxm->vtep6, &ip61->dst_address)) - goto exit1; /* no local VTEP for VXLAN packet */ + goto exit1; /* no local VTEP for VXLAN packet */ addr6 = ip61->dst_address; } } @@ -726,14 +741,14 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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) @@ -753,9 +768,13 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, /* vxlan-input node expect current at VXLAN header */ if (is_ip4) - vlib_buffer_advance (b1, sizeof(ip4_header_t)+sizeof(udp_header_t)); + 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)); + vlib_buffer_advance (b1, + sizeof (ip6_header_t) + + sizeof (udp_header_t)); exit1: vlib_validate_buffer_enqueue_x2 (vm, node, next_index, @@ -765,11 +784,11 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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; + 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; @@ -786,17 +805,17 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, ip60 = vlib_buffer_get_current (b0); /* Setup packet for next IP feature */ - vnet_feature_next(&next0, b0); + 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; + proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol; else proto0 = ip60->protocol; if (proto0 != IP_PROTOCOL_UDP) - goto exit; /* not UDP packet */ + goto exit; /* not UDP packet */ if (is_ip4) udp0 = ip4_next_header (ip40); @@ -804,24 +823,24 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, udp0 = ip6_next_header (ip60); if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan)) - goto exit; /* not VXLAN packet */ + goto exit; /* not VXLAN packet */ - /* Validate DIP against VTEPs*/ + /* Validate DIP against VTEPs */ if (is_ip4) { if (addr4.as_u32 != ip40->dst_address.as_u32) - { + { if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32)) - goto exit; /* no local VTEP for VXLAN packet */ + 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 (vxm->vtep6, &ip60->dst_address)) - goto exit; /* no local VTEP for VXLAN packet */ + goto exit; /* no local VTEP for VXLAN packet */ addr6 = ip60->dst_address; } } @@ -844,14 +863,14 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, 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) @@ -871,9 +890,13 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, /* vxlan-input node expect current at VXLAN header */ if (is_ip4) - vlib_buffer_advance (b0, sizeof(ip4_header_t)+sizeof(udp_header_t)); + 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)); + vlib_buffer_advance (b0, + sizeof (ip6_header_t) + + sizeof (udp_header_t)); exit: vlib_validate_buffer_enqueue_x1 (vm, node, next_index, @@ -889,63 +912,69 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, static uword ip4_vxlan_bypass (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip_vxlan_bypass_inline (vm, node, frame, /* is_ip4 */ 1); } -VLIB_REGISTER_NODE (ip4_vxlan_bypass_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip4_vxlan_bypass_node) = +{ .function = ip4_vxlan_bypass, .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", + [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, }; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_vxlan_bypass_node,ip4_vxlan_bypass) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_vxlan_bypass_node, ip4_vxlan_bypass) +/* *INDENT-ON* */ /* Dummy init function to get us linked in. */ -clib_error_t * ip4_vxlan_bypass_init (vlib_main_t * vm) -{ return 0; } +clib_error_t * +ip4_vxlan_bypass_init (vlib_main_t * vm) +{ + return 0; +} VLIB_INIT_FUNCTION (ip4_vxlan_bypass_init); static uword ip6_vxlan_bypass (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip_vxlan_bypass_inline (vm, node, frame, /* is_ip4 */ 0); } -VLIB_REGISTER_NODE (ip6_vxlan_bypass_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_vxlan_bypass_node) = +{ .function = ip6_vxlan_bypass, .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, }; -VLIB_NODE_FUNCTION_MULTIARCH (ip6_vxlan_bypass_node,ip6_vxlan_bypass) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_vxlan_bypass_node, ip6_vxlan_bypass) +/* *INDENT-ON* */ /* Dummy init function to get us linked in. */ -clib_error_t * ip6_vxlan_bypass_init (vlib_main_t * vm) -{ return 0; } +clib_error_t * +ip6_vxlan_bypass_init (vlib_main_t * vm) +{ + return 0; +} VLIB_INIT_FUNCTION (ip6_vxlan_bypass_init); @@ -958,7 +987,7 @@ typedef enum #define _(s,n) VXLAN_FLOW_NEXT_##s, foreach_vxlan_flow_input_next #undef _ - VXLAN_FLOW_N_NEXT, + VXLAN_FLOW_N_NEXT, } vxlan_flow_input_next_t; #define foreach_vxlan_flow_error \ @@ -984,27 +1013,30 @@ static char *vxlan_flow_error_strings[] = { static_always_inline u8 -vxlan_validate_udp_csum (vlib_main_t * vm, vlib_buffer_t *b) +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), }; + 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); - } + { + 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) +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; + 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; @@ -1013,18 +1045,19 @@ vxlan_check_udp_csum (vlib_main_t * vm, vlib_buffer_t *b) } static_always_inline u8 -vxlan_check_ip (vlib_buffer_t *b, u16 payload_len) +vxlan_check_ip (vlib_buffer_t * b, u16 payload_len) { - ip4_vxlan_header_t * hdr = vlib_buffer_get_current(b) - sizeof *hdr; + 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; + 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) +vxlan_check_ip_udp_len (vlib_buffer_t * b) { - ip4_vxlan_header_t * hdr = vlib_buffer_get_current(b) - sizeof *hdr; + 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; @@ -1035,250 +1068,279 @@ 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; + error0 = VXLAN_FLOW_ERROR_IP_HEADER_ERROR; if (udp_err0) - error0 = VXLAN_FLOW_ERROR_UDP_LENGTH_ERROR; + error0 = VXLAN_FLOW_ERROR_UDP_LENGTH_ERROR; if (csum_err0) - error0 = VXLAN_FLOW_ERROR_UDP_CHECKSUM_ERROR; + 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) + 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, + 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 thread_index = vlib_get_thread_index (); - u32 * from = vlib_frame_vector_args (f); + 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; + { + u32 n_left_to_next, *to_next; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_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 = (vxlan_rx_trace_t) { - .next_index = next0, .error = error0, .tunnel_index = t_index0, .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 = (vxlan_rx_trace_t) { - .next_index = next1, .error = error1, .tunnel_index = t_index1, .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 = (vxlan_rx_trace_t) { - .next_index = next2, .error = error2, .tunnel_index = t_index2, .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 = (vxlan_rx_trace_t) { - .next_index = next3, .error = error3, .tunnel_index = t_index3, .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)) + while (n_left_from > 3 && n_left_to_next > 3) { - 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 = (vxlan_rx_trace_t) { - .next_index = next0, .error = error0, .tunnel_index = t_index0, .vni = t0->vni }; + 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); } - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } + 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_put_next_frame (vm, node, next_index, 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; } @@ -1304,3 +1366,11 @@ VLIB_REGISTER_NODE (vxlan4_flow_input_node) = { }; #endif /* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |