diff options
Diffstat (limited to 'src/vnet/vxlan-gbp')
| -rw-r--r-- | src/vnet/vxlan-gbp/decap.c | 1050 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/dir.dox | 24 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/encap.c | 601 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp.api | 100 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp.c | 1193 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp.h | 250 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp_api.c | 217 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp_error.def | 17 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp_packet.c | 60 | ||||
| -rw-r--r-- | src/vnet/vxlan-gbp/vxlan_gbp_packet.h | 173 |
10 files changed, 0 insertions, 3685 deletions
diff --git a/src/vnet/vxlan-gbp/decap.c b/src/vnet/vxlan-gbp/decap.c deleted file mode 100644 index 927c778b211..00000000000 --- a/src/vnet/vxlan-gbp/decap.c +++ /dev/null @@ -1,1050 +0,0 @@ -/* - * decap.c: vxlan gbp tunnel decap packet processing - * - * Copyright (c) 2018 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-gbp/vxlan_gbp.h> - -typedef struct -{ - u32 next_index; - u32 tunnel_index; - u32 error; - u32 vni; - u16 sclass; - u8 flags; -} vxlan_gbp_rx_trace_t; - -static u8 * -format_vxlan_gbp_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_gbp_rx_trace_t *t = va_arg (*args, vxlan_gbp_rx_trace_t *); - - if (t->tunnel_index == ~0) - return format (s, - "VXLAN_GBP decap error - tunnel for vni %d does not exist", - t->vni); - return format (s, - "VXLAN_GBP decap from vxlan_gbp_tunnel%d vni %d sclass %d" - " flags %U next %d error %d", - t->tunnel_index, t->vni, t->sclass, - format_vxlan_gbp_header_gpflags, t->flags, - t->next_index, t->error); -} - -always_inline u32 -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 ? - 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]; - - return vec_elt (fib_index_by_sw_if_index, sw_if_index); -} - -typedef vxlan4_gbp_tunnel_key_t last_tunnel_cache4; - -always_inline vxlan_gbp_tunnel_t * -vxlan4_gbp_find_tunnel (vxlan_gbp_main_t * vxm, last_tunnel_cache4 * cache, - u32 fib_index, ip4_header_t * ip4_0, - vxlan_gbp_header_t * vxlan_gbp0) -{ - /* - * Check unicast first since that's where most of the traffic comes from - * Make sure VXLAN_GBP tunnel exist according to packet SIP, DIP and VNI - */ - vxlan4_gbp_tunnel_key_t key4; - int rv; - - key4.key[1] = (((u64) fib_index << 32) | - (vxlan_gbp0->vni_reserved & - clib_host_to_net_u32 (0xffffff00))); - key4.key[0] = - (((u64) ip4_0->dst_address.as_u32 << 32) | ip4_0->src_address.as_u32); - - if (PREDICT_FALSE (key4.key[0] != cache->key[0] || - key4.key[1] != cache->key[1])) - { - rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, - &key4); - if (PREDICT_FALSE (rv == 0)) - { - *cache = key4; - return (pool_elt_at_index (vxm->tunnels, cache->value)); - } - } - else - { - return (pool_elt_at_index (vxm->tunnels, cache->value)); - } - - /* No unicast match - try multicast */ - if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address))) - return (NULL); - - key4.key[0] = ip4_0->dst_address.as_u32; - /* Make sure mcast VXLAN_GBP tunnel exist by packet DIP and VNI */ - rv = clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4); - - if (PREDICT_FALSE (rv != 0)) - return (NULL); - - return (pool_elt_at_index (vxm->tunnels, key4.value)); -} - -typedef vxlan6_gbp_tunnel_key_t last_tunnel_cache6; - -always_inline vxlan_gbp_tunnel_t * -vxlan6_gbp_find_tunnel (vxlan_gbp_main_t * vxm, last_tunnel_cache6 * cache, - u32 fib_index, ip6_header_t * ip6_0, - vxlan_gbp_header_t * vxlan_gbp0) -{ - /* Make sure VXLAN_GBP tunnel exist according to packet SIP and VNI */ - vxlan6_gbp_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) | - (vxlan_gbp0->vni_reserved & - clib_host_to_net_u32 (0xffffff00))), - } - }; - int rv; - - if (PREDICT_FALSE - (clib_bihash_key_compare_24_8 (key6.key, cache->key) == 0)) - { - rv = clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, - &key6); - if (PREDICT_FALSE (rv != 0)) - return NULL; - - *cache = key6; - } - vxlan_gbp_tunnel_t *t0 = pool_elt_at_index (vxm->tunnels, cache->value); - - /* Validate VXLAN_GBP tunnel SIP against packet DIP */ - if (PREDICT_FALSE - (!ip6_address_is_equal (&ip6_0->dst_address, &t0->src.ip6))) - { - /* try multicast */ - if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address))) - return 0; - - /* Make sure mcast VXLAN_GBP 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]; - rv = clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, - &key6); - if (PREDICT_FALSE (rv != 0)) - return 0; - - } - - return t0; -} - -always_inline vxlan_gbp_input_next_t -vxlan_gbp_tunnel_get_next (const vxlan_gbp_tunnel_t * t, vlib_buffer_t * b0) -{ - if (VXLAN_GBP_TUNNEL_MODE_L2 == t->mode) - return (VXLAN_GBP_INPUT_NEXT_L2_INPUT); - else - { - ethernet_header_t *e0; - u16 type0; - - e0 = vlib_buffer_get_current (b0); - vlib_buffer_advance (b0, sizeof (*e0)); - type0 = clib_net_to_host_u16 (e0->type); - switch (type0) - { - case ETHERNET_TYPE_IP4: - return (VXLAN_GBP_INPUT_NEXT_IP4_INPUT); - case ETHERNET_TYPE_IP6: - return (VXLAN_GBP_INPUT_NEXT_IP6_INPUT); - } - } - return (VXLAN_GBP_INPUT_NEXT_DROP); -} - -always_inline uword -vxlan_gbp_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, u8 is_ip4) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_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 (); - - if (is_ip4) - clib_memset (&last4, 0xff, sizeof last4); - else - clib_memset (&last6, 0xff, sizeof last6); - - u32 next_index = node->cached_next_index; - - 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; - 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; - - 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); - } - - u32 bi0 = to_next[0] = from[0]; - u32 bi1 = to_next[1] = from[1]; - from += 2; - to_next += 2; - n_left_to_next -= 2; - n_left_from -= 2; - - 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_gbp header */ - void *cur0 = vlib_buffer_get_current (b0); - void *cur1 = vlib_buffer_get_current (b1); - vxlan_gbp_header_t *vxlan_gbp0 = cur0; - vxlan_gbp_header_t *vxlan_gbp1 = 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); - } - - u32 fi0 = buf_fib_index (b0, is_ip4); - u32 fi1 = buf_fib_index (b1, is_ip4); - - vxlan_gbp_tunnel_t *t0, *t1; - if (is_ip4) - { - t0 = - vxlan4_gbp_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan_gbp0); - t1 = - vxlan4_gbp_find_tunnel (vxm, &last4, fi1, ip4_1, vxlan_gbp1); - } - else - { - t0 = - vxlan6_gbp_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan_gbp0); - t1 = - vxlan6_gbp_find_tunnel (vxm, &last6, fi1, ip6_1, vxlan_gbp1); - } - - u32 len0 = vlib_buffer_length_in_chain (vm, b0); - u32 len1 = vlib_buffer_length_in_chain (vm, b1); - - vxlan_gbp_input_next_t next0, next1; - u8 error0 = 0, error1 = 0; - u8 flags0 = vxlan_gbp_get_flags (vxlan_gbp0); - u8 flags1 = vxlan_gbp_get_flags (vxlan_gbp1); - /* Required to make the l2 tag push / pop code work on l2 subifs */ - /* pop vxlan_gbp */ - vlib_buffer_advance (b0, sizeof *vxlan_gbp0); - vlib_buffer_advance (b1, sizeof *vxlan_gbp1); - - u8 i_and_g0 = ((flags0 & VXLAN_GBP_FLAGS_GI) == VXLAN_GBP_FLAGS_GI); - u8 i_and_g1 = ((flags1 & VXLAN_GBP_FLAGS_GI) == VXLAN_GBP_FLAGS_GI); - - /* Validate VXLAN_GBP tunnel encap-fib index against packet */ - if (PREDICT_FALSE (t0 == NULL || !i_and_g0)) - { - if (t0 != NULL && !i_and_g0) - { - error0 = VXLAN_GBP_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, t0->sw_if_index, 1, len0); - next0 = VXLAN_GBP_INPUT_NEXT_DROP; - } - else - { - error0 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL; - next0 = VXLAN_GBP_INPUT_NEXT_PUNT; - if (is_ip4) - b0->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4]; - else - b0->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP6]; - } - b0->error = node->errors[error0]; - } - else - { - next0 = vxlan_gbp_tunnel_get_next (t0, 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, t0->sw_if_index, 1, len0); - pkts_decapsulated++; - } - - vnet_buffer2 (b0)->gbp.flags = (vxlan_gbp_get_gpflags (vxlan_gbp0) | - VXLAN_GBP_GPFLAGS_R); - vnet_buffer2 (b0)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp0); - - - if (PREDICT_FALSE (t1 == NULL || !i_and_g1)) - { - if (t1 != NULL && !i_and_g1) - { - error1 = VXLAN_GBP_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, t1->sw_if_index, 1, len1); - next1 = VXLAN_GBP_INPUT_NEXT_DROP; - } - else - { - error1 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL; - next1 = VXLAN_GBP_INPUT_NEXT_PUNT; - if (is_ip4) - b1->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4]; - else - b1->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP6]; - } - b1->error = node->errors[error1]; - } - else - { - next1 = vxlan_gbp_tunnel_get_next (t1, b1); - - /* Set packet input sw_if_index to unicast VXLAN_GBP 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, t1->sw_if_index, 1, len1); - } - - vnet_buffer2 (b1)->gbp.flags = (vxlan_gbp_get_gpflags (vxlan_gbp1) | - VXLAN_GBP_GPFLAGS_R); - - vnet_buffer2 (b1)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp1); - - vnet_update_l2_len (b0); - vnet_update_l2_len (b1); - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_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 = vxlan_gbp_get_vni (vxlan_gbp0); - tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0); - tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0); - } - if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_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 = vxlan_gbp_get_vni (vxlan_gbp1); - tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp1); - tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp1); - } - - 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) - { - u32 bi0 = to_next[0] = from[0]; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - - /* udp leaves current_data pointing at the vxlan_gbp header */ - void *cur0 = vlib_buffer_get_current (b0); - vxlan_gbp_header_t *vxlan_gbp0 = 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); - - u32 fi0 = buf_fib_index (b0, is_ip4); - - vxlan_gbp_tunnel_t *t0; - if (is_ip4) - t0 = vxlan4_gbp_find_tunnel (vxm, &last4, fi0, ip4_0, vxlan_gbp0); - else - t0 = vxlan6_gbp_find_tunnel (vxm, &last6, fi0, ip6_0, vxlan_gbp0); - - uword len0 = vlib_buffer_length_in_chain (vm, b0); - - vxlan_gbp_input_next_t next0; - u8 error0 = 0; - u8 flags0 = vxlan_gbp_get_flags (vxlan_gbp0); - - /* pop (ip, udp, vxlan_gbp) */ - vlib_buffer_advance (b0, sizeof (*vxlan_gbp0)); - - u8 i_and_g0 = ((flags0 & VXLAN_GBP_FLAGS_GI) == VXLAN_GBP_FLAGS_GI); - - /* Validate VXLAN_GBP tunnel encap-fib index against packet */ - if (PREDICT_FALSE (t0 == NULL || !i_and_g0)) - { - if (t0 != NULL && !i_and_g0) - { - error0 = VXLAN_GBP_ERROR_BAD_FLAGS; - vlib_increment_combined_counter - (drop_counter, thread_index, t0->sw_if_index, 1, len0); - next0 = VXLAN_GBP_INPUT_NEXT_DROP; - } - else - { - error0 = VXLAN_GBP_ERROR_NO_SUCH_TUNNEL; - next0 = VXLAN_GBP_INPUT_NEXT_PUNT; - if (is_ip4) - b0->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4]; - else - b0->punt_reason = - vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP6]; - } - b0->error = node->errors[error0]; - } - else - { - next0 = vxlan_gbp_tunnel_get_next (t0, b0); - /* Set packet input sw_if_index to unicast VXLAN_GBP 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, t0->sw_if_index, 1, len0); - } - vnet_buffer2 (b0)->gbp.flags = (vxlan_gbp_get_gpflags (vxlan_gbp0) | - VXLAN_GBP_GPFLAGS_R); - - vnet_buffer2 (b0)->gbp.sclass = vxlan_gbp_get_sclass (vxlan_gbp0); - - /* Required to make the l2 tag push / pop code work on l2 subifs */ - vnet_update_l2_len (b0); - - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_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 = vxlan_gbp_get_vni (vxlan_gbp0); - tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0); - tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0); - } - 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); - } - /* Do we still need this now that tunnel tx stats is kept? */ - u32 node_idx = - is_ip4 ? vxlan4_gbp_input_node.index : vxlan6_gbp_input_node.index; - vlib_node_increment_counter (vm, node_idx, VXLAN_GBP_ERROR_DECAPSULATED, - pkts_decapsulated); - - return from_frame->n_vectors; -} - -VLIB_NODE_FN (vxlan4_gbp_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - return vxlan_gbp_input (vm, node, from_frame, /* is_ip4 */ 1); -} - -VLIB_NODE_FN (vxlan6_gbp_input_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - return vxlan_gbp_input (vm, node, from_frame, /* is_ip4 */ 0); -} - -static char *vxlan_gbp_error_strings[] = { -#define vxlan_gbp_error(n,s) s, -#include <vnet/vxlan-gbp/vxlan_gbp_error.def> -#undef vxlan_gbp_error -#undef _ -}; - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (vxlan4_gbp_input_node) = -{ - .name = "vxlan4-gbp-input", - .vector_size = sizeof (u32), - .n_errors = VXLAN_GBP_N_ERROR, - .error_strings = vxlan_gbp_error_strings, - .n_next_nodes = VXLAN_GBP_INPUT_N_NEXT, - .format_trace = format_vxlan_gbp_rx_trace, - .next_nodes = { -#define _(s,n) [VXLAN_GBP_INPUT_NEXT_##s] = n, - foreach_vxlan_gbp_input_next -#undef _ - }, -}; - -VLIB_REGISTER_NODE (vxlan6_gbp_input_node) = -{ - .name = "vxlan6-gbp-input", - .vector_size = sizeof (u32), - .n_errors = VXLAN_GBP_N_ERROR, - .error_strings = vxlan_gbp_error_strings, - .n_next_nodes = VXLAN_GBP_INPUT_N_NEXT, - .next_nodes = { -#define _(s,n) [VXLAN_GBP_INPUT_NEXT_##s] = n, - foreach_vxlan_gbp_input_next -#undef _ - }, - .format_trace = format_vxlan_gbp_rx_trace, -}; -/* *INDENT-ON* */ - -typedef enum -{ - IP_VXLAN_GBP_BYPASS_NEXT_DROP, - IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP, - IP_VXLAN_GBP_BYPASS_N_NEXT, -} ip_vxlan_gbp_bypass_next_t; - -always_inline uword -ip_vxlan_gbp_bypass_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, u32 is_ip4) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_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 (&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); - - if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp)) - goto exit0; /* not VXLAN_GBP packet */ - - /* 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_GBP 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_GBP 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_GBP_BYPASS_NEXT_DROP : - IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP; - b0->error = error0 ? error_node->errors[error0] : 0; - - /* vxlan-gbp-input node expect current at VXLAN_GBP 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_gbp)) - goto exit1; /* not VXLAN_GBP packet */ - - /* 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_GBP 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_GBP 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_GBP_BYPASS_NEXT_DROP : - IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP; - b1->error = error1 ? error_node->errors[error1] : 0; - - /* vxlan_gbp-input node expect current at VXLAN_GBP 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 (&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); - - if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp)) - goto exit; /* not VXLAN_GBP packet */ - - /* 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_GBP 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_GBP 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_GBP_BYPASS_NEXT_DROP : - IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP; - b0->error = error0 ? error_node->errors[error0] : 0; - - /* vxlan_gbp-input node expect current at VXLAN_GBP 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_gbp_bypass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return ip_vxlan_gbp_bypass_inline (vm, node, frame, /* is_ip4 */ 1); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_vxlan_gbp_bypass_node) = -{ - .name = "ip4-vxlan-gbp-bypass", - .vector_size = sizeof (u32), - .n_next_nodes = IP_VXLAN_GBP_BYPASS_N_NEXT, - .next_nodes = { - [IP_VXLAN_GBP_BYPASS_NEXT_DROP] = "error-drop", - [IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP] = "vxlan4-gbp-input", - }, - .format_buffer = format_ip4_header, - .format_trace = format_ip4_forward_next_trace, -}; -/* *INDENT-ON* */ - -#ifndef CLIB_MARCH_VARIANT -/* Dummy init function to get us linked in. */ -clib_error_t * -ip4_vxlan_gbp_bypass_init (vlib_main_t * vm) -{ - return 0; -} - -VLIB_INIT_FUNCTION (ip4_vxlan_gbp_bypass_init); -#endif /* CLIB_MARCH_VARIANT */ - -VLIB_NODE_FN (ip6_vxlan_gbp_bypass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return ip_vxlan_gbp_bypass_inline (vm, node, frame, /* is_ip4 */ 0); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip6_vxlan_gbp_bypass_node) = -{ - .name = "ip6-vxlan-gbp-bypass", - .vector_size = sizeof (u32), - .n_next_nodes = IP_VXLAN_GBP_BYPASS_N_NEXT, - .next_nodes = { - [IP_VXLAN_GBP_BYPASS_NEXT_DROP] = "error-drop", - [IP_VXLAN_GBP_BYPASS_NEXT_VXLAN_GBP] = "vxlan6-gbp-input", - }, - .format_buffer = format_ip6_header, - .format_trace = format_ip6_forward_next_trace, -}; -/* *INDENT-ON* */ - -#ifndef CLIB_MARCH_VARIANT -/* Dummy init function to get us linked in. */ -clib_error_t * -ip6_vxlan_gbp_bypass_init (vlib_main_t * vm) -{ - return 0; -} - -VLIB_INIT_FUNCTION (ip6_vxlan_gbp_bypass_init); -#endif /* CLIB_MARCH_VARIANT */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/dir.dox b/src/vnet/vxlan-gbp/dir.dox deleted file mode 100644 index 6e63c90b17b..00000000000 --- a/src/vnet/vxlan-gbp/dir.dox +++ /dev/null @@ -1,24 +0,0 @@ -/* - * Copyright (c) 2018 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. - */ - -/** -@dir -@brief VXLAN-GBP Code. - -This directory contains source code to support VXLAN-GBP. - -*/ -/*? %%clicmd:group_label VXLAN-GBP CLI %% ?*/ diff --git a/src/vnet/vxlan-gbp/encap.c b/src/vnet/vxlan-gbp/encap.c deleted file mode 100644 index 2a4e8a8e312..00000000000 --- a/src/vnet/vxlan-gbp/encap.c +++ /dev/null @@ -1,601 +0,0 @@ -/* - * Copyright (c) 2018 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 <vppinfra/error.h> -#include <vppinfra/hash.h> -#include <vnet/vnet.h> -#include <vnet/ip/ip.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/interface_output.h> -#include <vnet/vxlan-gbp/vxlan_gbp.h> -#include <vnet/qos/qos_types.h> -#include <vnet/adj/rewrite.h> - -/* Statistics (not all errors) */ -#define foreach_vxlan_gbp_encap_error \ -_(ENCAPSULATED, "good packets encapsulated") - -static char *vxlan_gbp_encap_error_strings[] = { -#define _(sym,string) string, - foreach_vxlan_gbp_encap_error -#undef _ -}; - -typedef enum -{ -#define _(sym,str) VXLAN_GBP_ENCAP_ERROR_##sym, - foreach_vxlan_gbp_encap_error -#undef _ - VXLAN_GBP_ENCAP_N_ERROR, -} vxlan_gbp_encap_error_t; - -typedef enum -{ - VXLAN_GBP_ENCAP_NEXT_DROP, - VXLAN_GBP_ENCAP_N_NEXT, -} vxlan_gbp_encap_next_t; - -typedef struct -{ - u32 tunnel_index; - u32 vni; - u16 sclass; - u8 flags; -} vxlan_gbp_encap_trace_t; - -#ifndef CLIB_MARCH_VARIANT -u8 * -format_vxlan_gbp_encap_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_gbp_encap_trace_t *t = va_arg (*args, vxlan_gbp_encap_trace_t *); - - s = - format (s, - "VXLAN_GBP encap to vxlan_gbp_tunnel%d vni %d sclass %d flags %U", - t->tunnel_index, t->vni, t->sclass, - format_vxlan_gbp_header_gpflags, t->flags); - return s; -} -#endif /* CLIB_MARCH_VARIANT */ - -always_inline uword -vxlan_gbp_encap_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, u8 is_ip4, u8 csum_offload) -{ - u32 n_left_from, next_index, *from, *to_next; - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vnet_main_t *vnm = vxm->vnet_main; - vnet_interface_main_t *im = &vnm->interface_main; - vlib_combined_counter_main_t *tx_counter = - im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX; - u32 pkts_encapsulated = 0; - u32 thread_index = vlib_get_thread_index (); - u32 sw_if_index0 = 0, sw_if_index1 = 0; - u32 next0 = 0, next1 = 0; - vxlan_gbp_tunnel_t *t0 = NULL, *t1 = NULL; - index_t dpoi_idx0 = INDEX_INVALID, dpoi_idx1 = INDEX_INVALID; - vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; - - from = vlib_frame_vector_args (from_frame); - n_left_from = from_frame->n_vectors; - vlib_get_buffers (vm, from, bufs, n_left_from); - - next_index = node->cached_next_index; - - STATIC_ASSERT_SIZEOF (ip6_vxlan_gbp_header_t, 56); - STATIC_ASSERT_SIZEOF (ip4_vxlan_gbp_header_t, 36); - - u8 const underlay_hdr_len = is_ip4 ? - sizeof (ip4_vxlan_gbp_header_t) : sizeof (ip6_vxlan_gbp_header_t); - u16 const l3_len = is_ip4 ? sizeof (ip4_header_t) : sizeof (ip6_header_t); - u32 const csum_flags = - is_ip4 ? VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID | - VNET_BUFFER_F_L4_HDR_OFFSET_VALID : - VNET_BUFFER_F_IS_IP6 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID | - VNET_BUFFER_F_L4_HDR_OFFSET_VALID; - u32 const outer_packet_csum_offload_flags = - is_ip4 ? VNET_BUFFER_OFFLOAD_F_IP_CKSUM | VNET_BUFFER_OFFLOAD_F_UDP_CKSUM : - VNET_BUFFER_OFFLOAD_F_UDP_CKSUM; - u32 const inner_packet_removed_flags = - VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_IS_IP6 | - VNET_BUFFER_F_L2_HDR_OFFSET_VALID | VNET_BUFFER_F_L3_HDR_OFFSET_VALID | - VNET_BUFFER_F_L4_HDR_OFFSET_VALID; - - while (n_left_from > 0) - { - u32 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; - - 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 (b[2]->data - CLIB_CACHE_LINE_BYTES, - 2 * CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (b[3]->data - CLIB_CACHE_LINE_BYTES, - 2 * CLIB_CACHE_LINE_BYTES, LOAD); - } - - u32 bi0 = to_next[0] = from[0]; - u32 bi1 = to_next[1] = from[1]; - from += 2; - to_next += 2; - n_left_to_next -= 2; - n_left_from -= 2; - - u32 or_flags = b[0]->flags | b[1]->flags; - if (csum_offload && (or_flags & VNET_BUFFER_F_OFFLOAD)) - { - /* Only calculate the non-GSO packet csum offload */ - if ((b[0]->flags & VNET_BUFFER_F_GSO) == 0) - { - vnet_calc_checksums_inline (vm, b[0], - b[0]->flags & - VNET_BUFFER_F_IS_IP4, - b[0]->flags & - VNET_BUFFER_F_IS_IP6); - b[0]->flags &= ~inner_packet_removed_flags; - } - if ((b[1]->flags & VNET_BUFFER_F_GSO) == 0) - { - vnet_calc_checksums_inline (vm, b[1], - b[1]->flags & - VNET_BUFFER_F_IS_IP4, - b[1]->flags & - VNET_BUFFER_F_IS_IP6); - b[1]->flags &= ~inner_packet_removed_flags; - } - } - - u32 flow_hash0 = vnet_l2_compute_flow_hash (b[0]); - u32 flow_hash1 = vnet_l2_compute_flow_hash (b[1]); - - /* Get next node index and adj index from tunnel next_dpo */ - if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX]) - { - sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; - vnet_hw_interface_t *hi0 = - vnet_get_sup_hw_interface (vnm, sw_if_index0); - t0 = &vxm->tunnels[hi0->dev_instance]; - /* Note: change to always set next0 if it may set to drop */ - next0 = t0->next_dpo.dpoi_next_node; - dpoi_idx0 = t0->next_dpo.dpoi_index; - } - - /* Get next node index and adj index from tunnel next_dpo */ - if (sw_if_index1 != vnet_buffer (b[1])->sw_if_index[VLIB_TX]) - { - if (sw_if_index0 == vnet_buffer (b[1])->sw_if_index[VLIB_TX]) - { - sw_if_index1 = sw_if_index0; - t1 = t0; - next1 = next0; - dpoi_idx1 = dpoi_idx0; - } - else - { - sw_if_index1 = vnet_buffer (b[1])->sw_if_index[VLIB_TX]; - vnet_hw_interface_t *hi1 = - vnet_get_sup_hw_interface (vnm, sw_if_index1); - t1 = &vxm->tunnels[hi1->dev_instance]; - /* Note: change to always set next1 if it may set to drop */ - next1 = t1->next_dpo.dpoi_next_node; - dpoi_idx1 = t1->next_dpo.dpoi_index; - } - } - - vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpoi_idx0; - vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = dpoi_idx1; - - ASSERT (t0->rewrite_header.data_bytes == underlay_hdr_len); - ASSERT (t1->rewrite_header.data_bytes == underlay_hdr_len); - vnet_rewrite_two_headers (*t0, *t1, vlib_buffer_get_current (b[0]), - vlib_buffer_get_current (b[1]), - underlay_hdr_len); - - vlib_buffer_advance (b[0], -underlay_hdr_len); - vlib_buffer_advance (b[1], -underlay_hdr_len); - - u32 len0 = vlib_buffer_length_in_chain (vm, b[0]); - u32 len1 = vlib_buffer_length_in_chain (vm, b[1]); - u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len); - u16 payload_l1 = clib_host_to_net_u16 (len1 - l3_len); - - void *underlay0 = vlib_buffer_get_current (b[0]); - void *underlay1 = vlib_buffer_get_current (b[1]); - - ip4_header_t *ip4_0, *ip4_1; - qos_bits_t ip4_0_tos = 0, ip4_1_tos = 0; - ip6_header_t *ip6_0, *ip6_1; - udp_header_t *udp0, *udp1; - vxlan_gbp_header_t *vxlan_gbp0, *vxlan_gbp1; - u8 *l3_0, *l3_1; - if (is_ip4) - { - ip4_vxlan_gbp_header_t *hdr0 = underlay0; - ip4_vxlan_gbp_header_t *hdr1 = underlay1; - - /* Fix the IP4 checksum and length */ - ip4_0 = &hdr0->ip4; - ip4_1 = &hdr1->ip4; - ip4_0->length = clib_host_to_net_u16 (len0); - ip4_1->length = clib_host_to_net_u16 (len1); - - if (PREDICT_FALSE (b[0]->flags & VNET_BUFFER_F_QOS_DATA_VALID)) - { - ip4_0_tos = vnet_buffer2 (b[0])->qos.bits; - ip4_0->tos = ip4_0_tos; - } - if (PREDICT_FALSE (b[1]->flags & VNET_BUFFER_F_QOS_DATA_VALID)) - { - ip4_1_tos = vnet_buffer2 (b[1])->qos.bits; - ip4_1->tos = ip4_1_tos; - } - - l3_0 = (u8 *) ip4_0; - l3_1 = (u8 *) ip4_1; - udp0 = &hdr0->udp; - udp1 = &hdr1->udp; - vxlan_gbp0 = &hdr0->vxlan_gbp; - vxlan_gbp1 = &hdr1->vxlan_gbp; - } - else /* ipv6 */ - { - ip6_vxlan_gbp_header_t *hdr0 = underlay0; - ip6_vxlan_gbp_header_t *hdr1 = underlay1; - - /* Fix IP6 payload length */ - ip6_0 = &hdr0->ip6; - ip6_1 = &hdr1->ip6; - ip6_0->payload_length = payload_l0; - ip6_1->payload_length = payload_l1; - - l3_0 = (u8 *) ip6_0; - l3_1 = (u8 *) ip6_1; - udp0 = &hdr0->udp; - udp1 = &hdr1->udp; - vxlan_gbp0 = &hdr0->vxlan_gbp; - vxlan_gbp1 = &hdr1->vxlan_gbp; - } - - /* Fix UDP length and set source port */ - udp0->length = payload_l0; - udp0->src_port = flow_hash0; - udp1->length = payload_l1; - udp1->src_port = flow_hash1; - - /* set source class and gpflags */ - vxlan_gbp0->gpflags = vnet_buffer2 (b[0])->gbp.flags; - vxlan_gbp1->gpflags = vnet_buffer2 (b[1])->gbp.flags; - vxlan_gbp0->sclass = - clib_host_to_net_u16 (vnet_buffer2 (b[0])->gbp.sclass); - vxlan_gbp1->sclass = - clib_host_to_net_u16 (vnet_buffer2 (b[1])->gbp.sclass); - - if (csum_offload) - { - b[0]->flags |= csum_flags; - vnet_buffer (b[0])->l3_hdr_offset = l3_0 - b[0]->data; - vnet_buffer (b[0])->l4_hdr_offset = (u8 *) udp0 - b[0]->data; - vnet_buffer_offload_flags_set (b[0], - outer_packet_csum_offload_flags); - b[1]->flags |= csum_flags; - vnet_buffer (b[1])->l3_hdr_offset = l3_1 - b[1]->data; - vnet_buffer (b[1])->l4_hdr_offset = (u8 *) udp1 - b[1]->data; - vnet_buffer_offload_flags_set (b[1], - outer_packet_csum_offload_flags); - } - /* IPv4 UDP checksum only if checksum offload is used */ - else if (is_ip4) - { - ip_csum_t sum0 = ip4_0->checksum; - sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t, - length /* changed member */ ); - if (PREDICT_FALSE (ip4_0_tos)) - { - sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t, - tos /* changed member */ ); - } - ip4_0->checksum = ip_csum_fold (sum0); - ip_csum_t sum1 = ip4_1->checksum; - sum1 = ip_csum_update (sum1, 0, ip4_1->length, ip4_header_t, - length /* changed member */ ); - if (PREDICT_FALSE (ip4_1_tos)) - { - sum1 = ip_csum_update (sum1, 0, ip4_1_tos, ip4_header_t, - tos /* changed member */ ); - } - ip4_1->checksum = ip_csum_fold (sum1); - } - /* IPv6 UDP checksum is mandatory */ - else - { - int bogus = 0; - - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum - (vm, b[0], ip6_0, &bogus); - ASSERT (bogus == 0); - if (udp0->checksum == 0) - udp0->checksum = 0xffff; - udp1->checksum = ip6_tcp_udp_icmp_compute_checksum - (vm, b[1], ip6_1, &bogus); - ASSERT (bogus == 0); - if (udp1->checksum == 0) - udp1->checksum = 0xffff; - } - - /* save inner packet flow_hash for load-balance node */ - vnet_buffer (b[0])->ip.flow_hash = flow_hash0; - vnet_buffer (b[1])->ip.flow_hash = flow_hash1; - - vlib_increment_combined_counter (tx_counter, thread_index, - sw_if_index0, 1, len0); - vlib_increment_combined_counter (tx_counter, thread_index, - sw_if_index1, 1, len1); - pkts_encapsulated += 2; - - if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_encap_trace_t *tr = - vlib_add_trace (vm, node, b[0], sizeof (*tr)); - tr->tunnel_index = t0 - vxm->tunnels; - tr->vni = t0->vni; - tr->sclass = vnet_buffer2 (b[0])->gbp.sclass; - tr->flags = vnet_buffer2 (b[0])->gbp.flags; - } - - if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_encap_trace_t *tr = - vlib_add_trace (vm, node, b[1], sizeof (*tr)); - tr->tunnel_index = t1 - vxm->tunnels; - tr->vni = t1->vni; - tr->sclass = vnet_buffer2 (b[1])->gbp.sclass; - tr->flags = vnet_buffer2 (b[1])->gbp.flags; - } - b += 2; - - 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) - { - u32 bi0 = to_next[0] = from[0]; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - if (csum_offload && (b[0]->flags & VNET_BUFFER_F_OFFLOAD)) - { - /* Only calculate the non-GSO packet csum offload */ - if ((b[0]->flags & VNET_BUFFER_F_GSO) == 0) - { - vnet_calc_checksums_inline (vm, b[0], - b[0]->flags & - VNET_BUFFER_F_IS_IP4, - b[0]->flags & - VNET_BUFFER_F_IS_IP6); - b[0]->flags &= ~inner_packet_removed_flags; - } - } - - u32 flow_hash0 = vnet_l2_compute_flow_hash (b[0]); - - /* Get next node index and adj index from tunnel next_dpo */ - if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX]) - { - sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX]; - vnet_hw_interface_t *hi0 = - vnet_get_sup_hw_interface (vnm, sw_if_index0); - t0 = &vxm->tunnels[hi0->dev_instance]; - /* Note: change to always set next0 if it may be set to drop */ - next0 = t0->next_dpo.dpoi_next_node; - dpoi_idx0 = t0->next_dpo.dpoi_index; - } - vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpoi_idx0; - - ASSERT (t0->rewrite_header.data_bytes == underlay_hdr_len); - vnet_rewrite_one_header (*t0, vlib_buffer_get_current (b[0]), - underlay_hdr_len); - - vlib_buffer_advance (b[0], -underlay_hdr_len); - void *underlay0 = vlib_buffer_get_current (b[0]); - - u32 len0 = vlib_buffer_length_in_chain (vm, b[0]); - u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len); - - vxlan_gbp_header_t *vxlan_gbp0; - udp_header_t *udp0; - ip4_header_t *ip4_0; - qos_bits_t ip4_0_tos = 0; - ip6_header_t *ip6_0; - u8 *l3_0; - if (is_ip4) - { - ip4_vxlan_gbp_header_t *hdr = underlay0; - - /* Fix the IP4 checksum and length */ - ip4_0 = &hdr->ip4; - ip4_0->length = clib_host_to_net_u16 (len0); - - if (PREDICT_FALSE (b[0]->flags & VNET_BUFFER_F_QOS_DATA_VALID)) - { - ip4_0_tos = vnet_buffer2 (b[0])->qos.bits; - ip4_0->tos = ip4_0_tos; - } - - l3_0 = (u8 *) ip4_0; - udp0 = &hdr->udp; - vxlan_gbp0 = &hdr->vxlan_gbp; - } - else /* ip6 path */ - { - ip6_vxlan_gbp_header_t *hdr = underlay0; - - /* Fix IP6 payload length */ - ip6_0 = &hdr->ip6; - ip6_0->payload_length = payload_l0; - - l3_0 = (u8 *) ip6_0; - udp0 = &hdr->udp; - vxlan_gbp0 = &hdr->vxlan_gbp; - } - - /* Fix UDP length and set source port */ - udp0->length = payload_l0; - udp0->src_port = flow_hash0; - - /* set source class and gpflags */ - vxlan_gbp0->gpflags = vnet_buffer2 (b[0])->gbp.flags; - vxlan_gbp0->sclass = - clib_host_to_net_u16 (vnet_buffer2 (b[0])->gbp.sclass); - - if (csum_offload) - { - b[0]->flags |= csum_flags; - vnet_buffer (b[0])->l3_hdr_offset = l3_0 - b[0]->data; - vnet_buffer (b[0])->l4_hdr_offset = (u8 *) udp0 - b[0]->data; - vnet_buffer_offload_flags_set (b[0], - outer_packet_csum_offload_flags); - } - /* IPv4 UDP checksum only if checksum offload is used */ - else if (is_ip4) - { - ip_csum_t sum0 = ip4_0->checksum; - sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t, - length /* changed member */ ); - if (PREDICT_FALSE (ip4_0_tos)) - { - sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t, - tos /* changed member */ ); - } - ip4_0->checksum = ip_csum_fold (sum0); - } - /* IPv6 UDP checksum is mandatory */ - else - { - int bogus = 0; - - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum - (vm, b[0], ip6_0, &bogus); - ASSERT (bogus == 0); - if (udp0->checksum == 0) - udp0->checksum = 0xffff; - } - - /* save inner packet flow_hash for load-balance node */ - vnet_buffer (b[0])->ip.flow_hash = flow_hash0; - - vlib_increment_combined_counter (tx_counter, thread_index, - sw_if_index0, 1, len0); - pkts_encapsulated++; - - if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gbp_encap_trace_t *tr = - vlib_add_trace (vm, node, b[0], sizeof (*tr)); - tr->tunnel_index = t0 - vxm->tunnels; - tr->vni = t0->vni; - tr->sclass = vnet_buffer2 (b[0])->gbp.sclass; - tr->flags = vnet_buffer2 (b[0])->gbp.flags; - } - b += 1; - - 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); - } - - /* Do we still need this now that tunnel tx stats is kept? */ - vlib_node_increment_counter (vm, node->node_index, - VXLAN_GBP_ENCAP_ERROR_ENCAPSULATED, - pkts_encapsulated); - - return from_frame->n_vectors; -} - -VLIB_NODE_FN (vxlan4_gbp_encap_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - /* Disable chksum offload as setup overhead in tx node is not worthwhile - for ip4 header checksum only, unless udp checksum is also required */ - return vxlan_gbp_encap_inline (vm, node, from_frame, /* is_ip4 */ 1, - /* csum_offload */ 0); -} - -VLIB_NODE_FN (vxlan6_gbp_encap_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) -{ - /* Enable checksum offload for ip6 as udp checksum is mandatory, */ - return vxlan_gbp_encap_inline (vm, node, from_frame, /* is_ip4 */ 0, - /* csum_offload */ 1); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (vxlan4_gbp_encap_node) = -{ - .name = "vxlan4-gbp-encap", - .vector_size = sizeof (u32), - .format_trace = format_vxlan_gbp_encap_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN (vxlan_gbp_encap_error_strings), - .error_strings = vxlan_gbp_encap_error_strings, - .n_next_nodes = VXLAN_GBP_ENCAP_N_NEXT, - .next_nodes = { - [VXLAN_GBP_ENCAP_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (vxlan6_gbp_encap_node) = -{ - .name = "vxlan6-gbp-encap", - .vector_size = sizeof (u32), - .format_trace = format_vxlan_gbp_encap_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN (vxlan_gbp_encap_error_strings), - .error_strings = vxlan_gbp_encap_error_strings, - .n_next_nodes = VXLAN_GBP_ENCAP_N_NEXT, - .next_nodes = { - [VXLAN_GBP_ENCAP_NEXT_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/vxlan_gbp.api b/src/vnet/vxlan-gbp/vxlan_gbp.api deleted file mode 100644 index 68566697000..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp.api +++ /dev/null @@ -1,100 +0,0 @@ -/* Hey Emacs use -*- mode: C -*- */ -/* - * Copyright (c) 2018 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. - */ - -option version = "1.1.1"; -import "vnet/ip/ip_types.api"; -import "vnet/interface_types.api"; - -enum vxlan_gbp_api_tunnel_mode -{ - VXLAN_GBP_API_TUNNEL_MODE_L2, - VXLAN_GBP_API_TUNNEL_MODE_L3, -}; - -/** \brief Definition of a VXLAN GBP tunnel - @param instance - optional unique custom device instance, else ~0. - @param src - Source IP address - @param dst - Destination IP address, can be multicast - @param mcast_sw_if_index - Interface for multicast destination - @param encap_table_id - Encap route table - @param vni - The VXLAN Network Identifier, uint24 - @param sw_ifindex - Ignored in add message, set in details -*/ -typedef vxlan_gbp_tunnel -{ - u32 instance; - vl_api_address_t src; - vl_api_address_t dst; - vl_api_interface_index_t mcast_sw_if_index; - u32 encap_table_id; - u32 vni; - vl_api_interface_index_t sw_if_index; - vl_api_vxlan_gbp_api_tunnel_mode_t mode; -}; - -/** \brief Create or delete a VXLAN-GBP tunnel - @param client_index - opaque cookie to identify the sender - @param context - sender context, to match reply w/ request - @param is_add - Use 1 to create the tunnel, 0 to remove it -*/ -define vxlan_gbp_tunnel_add_del -{ - u32 client_index; - u32 context; - bool is_add [default=true]; - vl_api_vxlan_gbp_tunnel_t tunnel; - option in_progress; -}; - -define vxlan_gbp_tunnel_add_del_reply -{ - u32 context; - i32 retval; - vl_api_interface_index_t sw_if_index; - option in_progress; -}; - -define vxlan_gbp_tunnel_dump -{ - u32 client_index; - u32 context; - vl_api_interface_index_t sw_if_index [default=0xffffffff]; - option in_progress; -}; - -define vxlan_gbp_tunnel_details -{ - u32 context; - vl_api_vxlan_gbp_tunnel_t tunnel; - option in_progress; -}; - -/** \brief Interface set vxlan-bypass request - @param client_index - opaque cookie to identify the sender - @param context - sender context, to match reply w/ request - @param sw_if_index - interface used to reach neighbor - @param is_ipv6 - if non-zero, enable ipv6-vxlan-bypass, else ipv4-vxlan-bypass - @param enable - if non-zero enable, else disable -*/ -autoreply define sw_interface_set_vxlan_gbp_bypass -{ - u32 client_index; - u32 context; - vl_api_interface_index_t sw_if_index; - bool is_ipv6; - bool enable [default=true]; - option in_progress; -}; diff --git a/src/vnet/vxlan-gbp/vxlan_gbp.c b/src/vnet/vxlan-gbp/vxlan_gbp.c deleted file mode 100644 index eb685b8a40c..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp.c +++ /dev/null @@ -1,1193 +0,0 @@ -/* - * Copyright (c) 2018 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 <vnet/vxlan-gbp/vxlan_gbp.h> -#include <vnet/ip/format.h> -#include <vnet/ip/punt.h> -#include <vnet/fib/fib_entry.h> -#include <vnet/fib/fib_table.h> -#include <vnet/fib/fib_entry_track.h> -#include <vnet/mfib/mfib_table.h> -#include <vnet/adj/adj_mcast.h> -#include <vnet/adj/rewrite.h> -#include <vnet/interface.h> -#include <vlib/vlib.h> - -/** - * @file - * @brief VXLAN GBP. - * - * VXLAN GBP provides the features of vxlan and carry group policy id. - */ -static vlib_punt_hdl_t punt_hdl; - -vxlan_gbp_main_t vxlan_gbp_main; - -u8 * -format_vxlan_gbp_tunnel_mode (u8 * s, va_list * args) -{ - vxlan_gbp_tunnel_mode_t mode = va_arg (*args, vxlan_gbp_tunnel_mode_t); - - switch (mode) - { - case VXLAN_GBP_TUNNEL_MODE_L2: - s = format (s, "L2"); - break; - case VXLAN_GBP_TUNNEL_MODE_L3: - s = format (s, "L3"); - break; - } - return (s); -} - -u8 * -format_vxlan_gbp_tunnel (u8 * s, va_list * args) -{ - vxlan_gbp_tunnel_t *t = va_arg (*args, vxlan_gbp_tunnel_t *); - - s = format (s, - "[%d] instance %d src %U dst %U vni %d fib-idx %d" - " sw-if-idx %d mode %U ", - t->dev_instance, t->user_instance, - format_ip46_address, &t->src, IP46_TYPE_ANY, - format_ip46_address, &t->dst, IP46_TYPE_ANY, - t->vni, t->encap_fib_index, t->sw_if_index, - format_vxlan_gbp_tunnel_mode, t->mode); - - s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index); - - if (PREDICT_FALSE (ip46_address_is_multicast (&t->dst))) - s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index); - - return s; -} - -static u8 * -format_vxlan_gbp_name (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vxlan_gbp_tunnel_t *t; - - if (dev_instance == ~0) - return format (s, "<cached-unused>"); - - if (dev_instance >= vec_len (vxm->tunnels)) - return format (s, "<improperly-referenced>"); - - t = pool_elt_at_index (vxm->tunnels, dev_instance); - - return format (s, "vxlan_gbp_tunnel%d", t->user_instance); -} - -static clib_error_t * -vxlan_gbp_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, - u32 flags) -{ - u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? - VNET_HW_INTERFACE_FLAG_LINK_UP : 0; - vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); - - return /* no error */ 0; -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (vxlan_gbp_device_class, static) = { - .name = "VXLAN-GBP", - .format_device_name = format_vxlan_gbp_name, - .format_tx_trace = format_vxlan_gbp_encap_trace, - .admin_up_down_function = vxlan_gbp_interface_admin_up_down, -}; -/* *INDENT-ON* */ - -static u8 * -format_vxlan_gbp_header_with_length (u8 * s, va_list * args) -{ - u32 dev_instance = va_arg (*args, u32); - s = format (s, "unimplemented dev %u", dev_instance); - return s; -} - -/* *INDENT-OFF* */ -VNET_HW_INTERFACE_CLASS (vxlan_gbp_hw_class) = { - .name = "VXLAN-GBP", - .format_header = format_vxlan_gbp_header_with_length, - .build_rewrite = default_build_rewrite, -}; -/* *INDENT-ON* */ - -static void -vxlan_gbp_tunnel_restack_dpo (vxlan_gbp_tunnel_t * t) -{ - u8 is_ip4 = ip46_address_is_ip4 (&t->dst); - dpo_id_t dpo = DPO_INVALID; - fib_forward_chain_type_t forw_type = is_ip4 ? - FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6; - - fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo); - - /* vxlan_gbp uses the payload hash as the udp source port - * hence the packet's hash is unknown - * skip single bucket load balance dpo's */ - while (DPO_LOAD_BALANCE == dpo.dpoi_type) - { - load_balance_t *lb = load_balance_get (dpo.dpoi_index); - if (lb->lb_n_buckets > 1) - break; - - dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0)); - } - - u32 encap_index = is_ip4 ? - vxlan4_gbp_encap_node.index : vxlan6_gbp_encap_node.index; - dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); - dpo_reset (&dpo); -} - -static vxlan_gbp_tunnel_t * -vxlan_gbp_tunnel_from_fib_node (fib_node_t * node) -{ - ASSERT (FIB_NODE_TYPE_VXLAN_GBP_TUNNEL == node->fn_type); - return ((vxlan_gbp_tunnel_t *) (((char *) node) - - STRUCT_OFFSET_OF (vxlan_gbp_tunnel_t, - node))); -} - -/** - * Function definition to backwalk a FIB node - - * Here we will restack the new dpo of VXLAN DIP to encap node. - */ -static fib_node_back_walk_rc_t -vxlan_gbp_tunnel_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx) -{ - vxlan_gbp_tunnel_restack_dpo (vxlan_gbp_tunnel_from_fib_node (node)); - return (FIB_NODE_BACK_WALK_CONTINUE); -} - -/** - * Function definition to get a FIB node from its index - */ -static fib_node_t * -vxlan_gbp_tunnel_fib_node_get (fib_node_index_t index) -{ - vxlan_gbp_tunnel_t *t; - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - t = pool_elt_at_index (vxm->tunnels, index); - - return (&t->node); -} - -/** - * Function definition to inform the FIB node that its last lock has gone. - */ -static void -vxlan_gbp_tunnel_last_lock_gone (fib_node_t * node) -{ - /* - * The VXLAN GBP tunnel is a root of the graph. As such - * it never has children and thus is never locked. - */ - ASSERT (0); -} - -/* - * Virtual function table registered by VXLAN GBP tunnels - * for participation in the FIB object graph. - */ -const static fib_node_vft_t vxlan_gbp_vft = { - .fnv_get = vxlan_gbp_tunnel_fib_node_get, - .fnv_last_lock = vxlan_gbp_tunnel_last_lock_gone, - .fnv_back_walk = vxlan_gbp_tunnel_back_walk, -}; - - -#define foreach_copy_field \ -_(vni) \ -_(mode) \ -_(mcast_sw_if_index) \ -_(encap_fib_index) \ -_(src) \ -_(dst) - -static void -vxlan_gbp_rewrite (vxlan_gbp_tunnel_t * t, bool is_ip6) -{ - union - { - ip4_vxlan_gbp_header_t h4; - ip6_vxlan_gbp_header_t h6; - } h; - int len = is_ip6 ? sizeof h.h6 : sizeof h.h4; - - udp_header_t *udp; - vxlan_gbp_header_t *vxlan_gbp; - /* Fixed portion of the (outer) ip header */ - - clib_memset (&h, 0, sizeof (h)); - if (!is_ip6) - { - ip4_header_t *ip = &h.h4.ip4; - udp = &h.h4.udp, vxlan_gbp = &h.h4.vxlan_gbp; - ip->ip_version_and_header_length = 0x45; - ip->ttl = 254; - ip->protocol = IP_PROTOCOL_UDP; - - ip->src_address = t->src.ip4; - ip->dst_address = t->dst.ip4; - - /* we fix up the ip4 header length and checksum after-the-fact */ - ip->checksum = ip4_header_checksum (ip); - } - else - { - ip6_header_t *ip = &h.h6.ip6; - udp = &h.h6.udp, vxlan_gbp = &h.h6.vxlan_gbp; - ip->ip_version_traffic_class_and_flow_label = - clib_host_to_net_u32 (6 << 28); - ip->hop_limit = 255; - ip->protocol = IP_PROTOCOL_UDP; - - ip->src_address = t->src.ip6; - ip->dst_address = t->dst.ip6; - } - - /* UDP header, randomize src port on something, maybe? */ - udp->src_port = clib_host_to_net_u16 (47789); - udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp); - - /* VXLAN header */ - vxlan_gbp_set_header (vxlan_gbp, t->vni); - vnet_rewrite_set_data (*t, &h, len); -} - -static uword -vtep_addr_ref (ip46_address_t * ip) -{ - uword *vtep = ip46_address_is_ip4 (ip) ? - hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) : - hash_get_mem (vxlan_gbp_main.vtep6, &ip->ip6); - if (vtep) - return ++(*vtep); - ip46_address_is_ip4 (ip) ? - hash_set (vxlan_gbp_main.vtep4, ip->ip4.as_u32, 1) : - hash_set_mem_alloc (&vxlan_gbp_main.vtep6, &ip->ip6, 1); - return 1; -} - -static uword -vtep_addr_unref (ip46_address_t * ip) -{ - uword *vtep = ip46_address_is_ip4 (ip) ? - hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) : - hash_get_mem (vxlan_gbp_main.vtep6, &ip->ip6); - ALWAYS_ASSERT (vtep); - if (--(*vtep) != 0) - return *vtep; - ip46_address_is_ip4 (ip) ? - hash_unset (vxlan_gbp_main.vtep4, ip->ip4.as_u32) : - hash_unset_mem_free (&vxlan_gbp_main.vtep6, &ip->ip6); - return 0; -} - -/* *INDENT-OFF* */ -typedef CLIB_PACKED(union -{ - struct - { - fib_node_index_t mfib_entry_index; - adj_index_t mcast_adj_index; - }; - u64 as_u64; -}) mcast_shared_t; -/* *INDENT-ON* */ - -static inline mcast_shared_t -mcast_shared_get (ip46_address_t * ip) -{ - ASSERT (ip46_address_is_multicast (ip)); - uword *p = hash_get_mem (vxlan_gbp_main.mcast_shared, ip); - ALWAYS_ASSERT (p); - mcast_shared_t ret = {.as_u64 = *p }; - return ret; -} - -static inline void -mcast_shared_add (ip46_address_t * dst, fib_node_index_t mfei, adj_index_t ai) -{ - mcast_shared_t new_ep = { - .mcast_adj_index = ai, - .mfib_entry_index = mfei, - }; - - hash_set_mem_alloc (&vxlan_gbp_main.mcast_shared, dst, new_ep.as_u64); -} - -static inline void -mcast_shared_remove (ip46_address_t * dst) -{ - mcast_shared_t ep = mcast_shared_get (dst); - - adj_unlock (ep.mcast_adj_index); - mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_VXLAN_GBP); - - hash_unset_mem_free (&vxlan_gbp_main.mcast_shared, dst); -} - -inline void -vxlan_gbp_register_udp_ports (void) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - if (vxm->udp_ports_registered == 0) - { - udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp, - vxlan4_gbp_input_node.index, /* is_ip4 */ 1); - udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp, - vxlan6_gbp_input_node.index, /* is_ip4 */ 0); - } - /* - * Counts the number of vxlan_gbp tunnels - */ - vxm->udp_ports_registered += 1; -} - -inline void -vxlan_gbp_unregister_udp_ports (void) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - ASSERT (vxm->udp_ports_registered != 0); - - if (vxm->udp_ports_registered == 1) - { - udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp, - /* is_ip4 */ 1); - udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp, - /* is_ip4 */ 0); - } - - vxm->udp_ports_registered -= 1; -} - -int vnet_vxlan_gbp_tunnel_add_del - (vnet_vxlan_gbp_tunnel_add_del_args_t * a, u32 * sw_if_indexp) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vxlan_gbp_tunnel_t *t = 0; - vnet_main_t *vnm = vxm->vnet_main; - u64 *p; - u32 sw_if_index = ~0; - vxlan4_gbp_tunnel_key_t key4; - vxlan6_gbp_tunnel_key_t key6; - u32 is_ip6 = a->is_ip6; - - int not_found; - if (!is_ip6) - { - key4.key[0] = ip46_address_is_multicast (&a->dst) ? - a->dst.ip4.as_u32 : - a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32); - key4.key[1] = (((u64) a->encap_fib_index) << 32) - | clib_host_to_net_u32 (a->vni << 8); - not_found = - clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, - &key4); - p = &key4.value; - } - else - { - key6.key[0] = a->dst.ip6.as_u64[0]; - key6.key[1] = a->dst.ip6.as_u64[1]; - key6.key[2] = (((u64) a->encap_fib_index) << 32) - | clib_host_to_net_u32 (a->vni << 8); - not_found = - clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, - &key6); - p = &key6.value; - } - - if (not_found) - p = 0; - - if (a->is_add) - { - l2input_main_t *l2im = &l2input_main; - u32 dev_instance; /* real dev instance tunnel index */ - u32 user_instance; /* request and actual instance number */ - - /* adding a tunnel: tunnel must not already exist */ - if (p) - { - t = pool_elt_at_index (vxm->tunnels, *p); - *sw_if_indexp = t->sw_if_index; - return VNET_API_ERROR_TUNNEL_EXIST; - } - pool_get_aligned (vxm->tunnels, t, CLIB_CACHE_LINE_BYTES); - clib_memset (t, 0, sizeof (*t)); - dev_instance = t - vxm->tunnels; - - /* copy from arg structure */ -#define _(x) t->x = a->x; - foreach_copy_field; -#undef _ - - vxlan_gbp_rewrite (t, is_ip6); - /* - * Reconcile the real dev_instance and a possible requested instance. - */ - user_instance = a->instance; - if (user_instance == ~0) - user_instance = dev_instance; - if (hash_get (vxm->instance_used, user_instance)) - { - pool_put (vxm->tunnels, t); - return VNET_API_ERROR_INSTANCE_IN_USE; - } - hash_set (vxm->instance_used, user_instance, 1); - - t->dev_instance = dev_instance; /* actual */ - t->user_instance = user_instance; /* name */ - - /* copy the key */ - int add_failed; - if (is_ip6) - { - key6.value = (u64) dev_instance; - add_failed = - clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6, - 1 /*add */ ); - } - else - { - key4.value = (u64) dev_instance; - add_failed = - clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4, - 1 /*add */ ); - } - - if (add_failed) - { - pool_put (vxm->tunnels, t); - return VNET_API_ERROR_INVALID_REGISTRATION; - } - - vxlan_gbp_register_udp_ports (); - - t->hw_if_index = vnet_register_interface - (vnm, vxlan_gbp_device_class.index, dev_instance, - vxlan_gbp_hw_class.index, dev_instance); - vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, t->hw_if_index); - - /* Set vxlan_gbp tunnel output node */ - u32 encap_index = !is_ip6 ? - vxlan4_gbp_encap_node.index : vxlan6_gbp_encap_node.index; - vnet_set_interface_output_node (vnm, t->hw_if_index, encap_index); - - t->sw_if_index = sw_if_index = hi->sw_if_index; - - if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode) - { - ip4_sw_interface_enable_disable (t->sw_if_index, 1); - ip6_sw_interface_enable_disable (t->sw_if_index, 1); - } - - vec_validate_init_empty (vxm->tunnel_index_by_sw_if_index, sw_if_index, - ~0); - vxm->tunnel_index_by_sw_if_index[sw_if_index] = dev_instance; - - /* setup l2 input config with l2 feature and bd 0 to drop packet */ - vec_validate (l2im->configs, sw_if_index); - l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP; - l2im->configs[sw_if_index].bd_index = 0; - - vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); - si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN; - vnet_sw_interface_set_flags (vnm, sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - - fib_node_init (&t->node, FIB_NODE_TYPE_VXLAN_GBP_TUNNEL); - fib_prefix_t tun_dst_pfx; - vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL; - - fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx); - if (!ip46_address_is_multicast (&t->dst)) - { - /* Unicast tunnel - - * source the FIB entry for the tunnel's destination - * and become a child thereof. The tunnel will then get poked - * when the forwarding for the entry updates, and the tunnel can - * re-stack accordingly - */ - vtep_addr_ref (&t->src); - t->fib_entry_index = fib_entry_track (t->encap_fib_index, - &tun_dst_pfx, - FIB_NODE_TYPE_VXLAN_GBP_TUNNEL, - dev_instance, - &t->sibling_index); - vxlan_gbp_tunnel_restack_dpo (t); - } - else - { - /* Multicast tunnel - - * as the same mcast group can be used for multiple mcast tunnels - * with different VNIs, create the output fib adjacency only if - * it does not already exist - */ - fib_protocol_t fp = fib_ip_proto (is_ip6); - - if (vtep_addr_ref (&t->dst) == 1) - { - fib_node_index_t mfei; - adj_index_t ai; - fib_route_path_t path = { - .frp_proto = fib_proto_to_dpo (fp), - .frp_addr = zero_addr, - .frp_sw_if_index = 0xffffffff, - .frp_fib_index = ~0, - .frp_weight = 0, - .frp_flags = FIB_ROUTE_PATH_LOCAL, - .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD, - }; - const mfib_prefix_t mpfx = { - .fp_proto = fp, - .fp_len = (is_ip6 ? 128 : 32), - .fp_grp_addr = tun_dst_pfx.fp_addr, - }; - - /* - * Setup the (*,G) to receive traffic on the mcast group - * - the forwarding interface is for-us - * - the accepting interface is that from the API - */ - mfib_table_entry_path_update (t->encap_fib_index, &mpfx, - MFIB_SOURCE_VXLAN_GBP, - MFIB_ENTRY_FLAG_NONE, &path); - - path.frp_sw_if_index = a->mcast_sw_if_index; - path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; - path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT; - mfei = mfib_table_entry_path_update ( - t->encap_fib_index, &mpfx, MFIB_SOURCE_VXLAN_GBP, - MFIB_ENTRY_FLAG_NONE, &path); - - /* - * Create the mcast adjacency to send traffic to the group - */ - ai = adj_mcast_add_or_lock (fp, - fib_proto_to_link (fp), - a->mcast_sw_if_index); - - /* - * create a new end-point - */ - mcast_shared_add (&t->dst, mfei, ai); - } - - dpo_id_t dpo = DPO_INVALID; - mcast_shared_t ep = mcast_shared_get (&t->dst); - - /* Stack shared mcast dst mac addr rewrite on encap */ - dpo_set (&dpo, DPO_ADJACENCY_MCAST, - fib_proto_to_dpo (fp), ep.mcast_adj_index); - - dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); - dpo_reset (&dpo); - flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER; - } - - vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class = - flood_class; - } - else - { - /* deleting a tunnel: tunnel must exist */ - if (!p) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - u32 instance = p[0]; - t = pool_elt_at_index (vxm->tunnels, instance); - - sw_if_index = t->sw_if_index; - vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ ); - - if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode) - { - ip4_sw_interface_enable_disable (t->sw_if_index, 0); - ip6_sw_interface_enable_disable (t->sw_if_index, 0); - } - - vxm->tunnel_index_by_sw_if_index[sw_if_index] = ~0; - - if (!is_ip6) - clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4, - 0 /*del */ ); - else - clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6, - 0 /*del */ ); - - if (!ip46_address_is_multicast (&t->dst)) - { - vtep_addr_unref (&t->src); - fib_entry_untrack (t->fib_entry_index, t->sibling_index); - } - else if (vtep_addr_unref (&t->dst) == 0) - { - mcast_shared_remove (&t->dst); - } - - vxlan_gbp_unregister_udp_ports (); - vnet_delete_hw_interface (vnm, t->hw_if_index); - hash_unset (vxm->instance_used, t->user_instance); - - fib_node_deinit (&t->node); - pool_put (vxm->tunnels, t); - } - - if (sw_if_indexp) - *sw_if_indexp = sw_if_index; - - return 0; -} - -int -vnet_vxlan_gbp_tunnel_del (u32 sw_if_index) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vxlan_gbp_tunnel_t *t = 0; - u32 ti; - - if (sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - ti = vxm->tunnel_index_by_sw_if_index[sw_if_index]; - if (~0 != ti) - { - t = pool_elt_at_index (vxm->tunnels, ti); - - vnet_vxlan_gbp_tunnel_add_del_args_t args = { - .is_add = 0, - .is_ip6 = !ip46_address_is_ip4 (&t->src), - .vni = t->vni, - .src = t->src, - .dst = t->dst, - .instance = ~0, - }; - - return (vnet_vxlan_gbp_tunnel_add_del (&args, NULL)); - } - - return VNET_API_ERROR_NO_SUCH_ENTRY; -} - -static uword -get_decap_next_for_node (u32 node_index, u32 ipv4_set) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vlib_main_t *vm = vxm->vlib_main; - uword input_node = (ipv4_set) ? vxlan4_gbp_input_node.index : - vxlan6_gbp_input_node.index; - - return vlib_node_add_next (vm, input_node, node_index); -} - -static uword -unformat_decap_next (unformat_input_t * input, va_list * args) -{ - u32 *result = va_arg (*args, u32 *); - u32 ipv4_set = va_arg (*args, int); - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vlib_main_t *vm = vxm->vlib_main; - u32 node_index; - u32 tmp; - - if (unformat (input, "l2")) - *result = VXLAN_GBP_INPUT_NEXT_L2_INPUT; - else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index)) - *result = get_decap_next_for_node (node_index, ipv4_set); - else if (unformat (input, "%d", &tmp)) - *result = tmp; - else - return 0; - return 1; -} - -static clib_error_t * -vxlan_gbp_tunnel_add_del_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, *line_input = &_line_input; - ip46_address_t src = ip46_address_initializer, dst = - ip46_address_initializer; - vxlan_gbp_tunnel_mode_t mode = VXLAN_GBP_TUNNEL_MODE_L2; - u8 is_add = 1; - u8 src_set = 0; - u8 dst_set = 0; - u8 grp_set = 0; - u8 ipv4_set = 0; - u8 ipv6_set = 0; - u32 instance = ~0; - u32 encap_fib_index = 0; - u32 mcast_sw_if_index = ~0; - u32 decap_next_index = VXLAN_GBP_INPUT_NEXT_L2_INPUT; - u32 vni = 0; - u32 table_id; - clib_error_t *parse_error = NULL; - - /* Get a line of input. */ - if (!unformat_user (input, unformat_line_input, line_input)) - return 0; - - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "del")) - { - is_add = 0; - } - else if (unformat (line_input, "instance %d", &instance)) - ; - else if (unformat (line_input, "src %U", - unformat_ip46_address, &src, IP46_TYPE_ANY)) - { - src_set = 1; - ip46_address_is_ip4 (&src) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "dst %U", - unformat_ip46_address, &dst, IP46_TYPE_ANY)) - { - dst_set = 1; - ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "group %U %U", - unformat_ip46_address, &dst, IP46_TYPE_ANY, - unformat_vnet_sw_interface, - vnet_get_main (), &mcast_sw_if_index)) - { - grp_set = dst_set = 1; - ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "encap-vrf-id %d", &table_id)) - { - encap_fib_index = - fib_table_find (fib_ip_proto (ipv6_set), table_id); - } - else if (unformat (line_input, "decap-next %U", unformat_decap_next, - &decap_next_index, ipv4_set)) - ; - else if (unformat (line_input, "vni %d", &vni)) - ; - else - { - parse_error = clib_error_return (0, "parse error: '%U'", - format_unformat_error, line_input); - break; - } - } - - unformat_free (line_input); - - if (parse_error) - return parse_error; - - if (encap_fib_index == ~0) - return clib_error_return (0, "nonexistent encap-vrf-id %d", table_id); - - if (src_set == 0) - return clib_error_return (0, "tunnel src address not specified"); - - if (dst_set == 0) - return clib_error_return (0, "tunnel dst address not specified"); - - if (grp_set && !ip46_address_is_multicast (&dst)) - return clib_error_return (0, "tunnel group address not multicast"); - - if (grp_set == 0 && ip46_address_is_multicast (&dst)) - return clib_error_return (0, "dst address must be unicast"); - - if (grp_set && mcast_sw_if_index == ~0) - return clib_error_return (0, "tunnel nonexistent multicast device"); - - if (ipv4_set && ipv6_set) - return clib_error_return (0, "both IPv4 and IPv6 addresses specified"); - - if (ip46_address_cmp (&src, &dst) == 0) - return clib_error_return (0, "src and dst addresses are identical"); - - if (decap_next_index == ~0) - return clib_error_return (0, "next node not found"); - - if (vni == 0) - return clib_error_return (0, "vni not specified"); - - if (vni >> 24) - return clib_error_return (0, "vni %d out of range", vni); - - vnet_vxlan_gbp_tunnel_add_del_args_t a = { - .is_add = is_add, - .is_ip6 = ipv6_set, - .instance = instance, -#define _(x) .x = x, - foreach_copy_field -#undef _ - }; - - u32 tunnel_sw_if_index; - int rv = vnet_vxlan_gbp_tunnel_add_del (&a, &tunnel_sw_if_index); - - switch (rv) - { - case 0: - if (is_add) - vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, - vnet_get_main (), tunnel_sw_if_index); - break; - - case VNET_API_ERROR_TUNNEL_EXIST: - return clib_error_return (0, "tunnel already exists..."); - - case VNET_API_ERROR_NO_SUCH_ENTRY: - return clib_error_return (0, "tunnel does not exist..."); - - case VNET_API_ERROR_INSTANCE_IN_USE: - return clib_error_return (0, "Instance is in use"); - - default: - return clib_error_return - (0, "vnet_vxlan_gbp_tunnel_add_del returned %d", rv); - } - - return 0; -} - -/*? - * Add or delete a VXLAN Tunnel. - * - * VXLAN provides the features needed to allow L2 bridge domains (BDs) - * to span multiple servers. This is done by building an L2 overlay on - * top of an L3 network underlay using VXLAN tunnels. - * - * This makes it possible for servers to be co-located in the same data - * center or be separated geographically as long as they are reachable - * through the underlay L3 network. - * - * You can refer to this kind of L2 overlay bridge domain as a VXLAN - * (Virtual eXtensible VLAN) segment. - * - * @cliexpar - * Example of how to create a VXLAN Tunnel: - * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7} - * Example of how to create a VXLAN Tunnel with a known name, vxlan_gbp_tunnel42: - * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 instance 42} - * Example of how to create a multicast VXLAN Tunnel with a known name, vxlan_gbp_tunnel23: - * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23} - * Example of how to delete a VXLAN Tunnel: - * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del} - ?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (create_vxlan_gbp_tunnel_command, static) = { - .path = "create vxlan-gbp tunnel", - .short_help = - "create vxlan-gbp tunnel src <local-vtep-addr>" - " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>" - " [instance <id>]" - " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]", - .function = vxlan_gbp_tunnel_add_del_command_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -show_vxlan_gbp_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vxlan_gbp_tunnel_t *t; - int raw = 0; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "raw")) - raw = 1; - else - return clib_error_return (0, "parse error: '%U'", - format_unformat_error, input); - } - - if (pool_elts (vxm->tunnels) == 0) - vlib_cli_output (vm, "No vxlan-gbp tunnels configured..."); - -/* *INDENT-OFF* */ - pool_foreach (t, vxm->tunnels) - { - vlib_cli_output (vm, "%U", format_vxlan_gbp_tunnel, t); - } -/* *INDENT-ON* */ - - if (raw) - { - vlib_cli_output (vm, "Raw IPv4 Hash Table:\n%U\n", - format_bihash_16_8, &vxm->vxlan4_gbp_tunnel_by_key, - 1 /* verbose */ ); - vlib_cli_output (vm, "Raw IPv6 Hash Table:\n%U\n", - format_bihash_24_8, &vxm->vxlan6_gbp_tunnel_by_key, - 1 /* verbose */ ); - } - - return 0; -} - -/*? - * Display all the VXLAN Tunnel entries. - * - * @cliexpar - * Example of how to display the VXLAN Tunnel entries: - * @cliexstart{show vxlan_gbp tunnel} - * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2 - * @cliexend - ?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_vxlan_gbp_tunnel_command, static) = { - .path = "show vxlan-gbp tunnel", - .short_help = "show vxlan-gbp tunnel [raw]", - .function = show_vxlan_gbp_tunnel_command_fn, -}; -/* *INDENT-ON* */ - - -void -vnet_int_vxlan_gbp_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable) -{ - if (is_ip6) - vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-gbp-bypass", - sw_if_index, is_enable, 0, 0); - else - vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-gbp-bypass", - sw_if_index, is_enable, 0, 0); -} - - -static clib_error_t * -set_ip_vxlan_gbp_bypass (u32 is_ip6, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, *line_input = &_line_input; - vnet_main_t *vnm = vnet_get_main (); - clib_error_t *error = 0; - u32 sw_if_index, is_enable; - - sw_if_index = ~0; - is_enable = 1; - - if (!unformat_user (input, unformat_line_input, line_input)) - return 0; - - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat_user - (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) - ; - else if (unformat (line_input, "del")) - is_enable = 0; - else - { - error = unformat_parse_error (line_input); - goto done; - } - } - - if (~0 == sw_if_index) - { - error = clib_error_return (0, "unknown interface `%U'", - format_unformat_error, line_input); - goto done; - } - - vnet_int_vxlan_gbp_bypass_mode (sw_if_index, is_ip6, is_enable); - -done: - unformat_free (line_input); - - return error; -} - -static clib_error_t * -set_ip4_vxlan_gbp_bypass (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - return set_ip_vxlan_gbp_bypass (0, input, cmd); -} - -/*? - * This command adds the 'ip4-vxlan-gbp-bypass' graph node for a given - * interface. By adding the IPv4 vxlan_gbp-bypass graph node to an interface, - * the node checks for and validate input vxlan_gbp packet and bypass - * ip4-lookup, ip4-local, ip4-udp-lookup nodes to speedup vxlan_gbp packet - * forwarding. This node will cause extra overhead to for non-vxlan_gbp packets - * which is kept at a minimum. - * - * @cliexpar - * @parblock - * Example of graph node before ip4-vxlan_gbp-bypass is enabled: - * @cliexstart{show vlib graph ip4-vxlan_gbp-bypass} - * Name Next Previous - * ip4-vxlan-gbp-bypass error-drop [0] - * vxlan4-gbp-input [1] - * ip4-lookup [2] - * @cliexend - * - * Example of how to enable ip4-vxlan-gbp-bypass on an interface: - * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0} - * - * Example of graph node after ip4-vxlan-gbp-bypass is enabled: - * @cliexstart{show vlib graph ip4-vxlan-gbp-bypass} - * Name Next Previous - * ip4-vxlan-gbp-bypass error-drop [0] ip4-input - * vxlan4-gbp-input [1] ip4-input-no-checksum - * ip4-lookup [2] - * @cliexend - * - * Example of how to display the feature enabled on an interface: - * @cliexstart{show ip interface features GigabitEthernet2/0/0} - * IP feature paths configured on GigabitEthernet2/0/0... - * ... - * ipv4 unicast: - * ip4-vxlan-gbp-bypass - * ip4-lookup - * ... - * @cliexend - * - * Example of how to disable ip4-vxlan-gbp-bypass on an interface: - * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0 del} - * @endparblock -?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_interface_ip_vxlan_gbp_bypass_command, static) = { - .path = "set interface ip vxlan-gbp-bypass", - .function = set_ip4_vxlan_gbp_bypass, - .short_help = "set interface ip vxlan-gbp-bypass <interface> [del]", -}; -/* *INDENT-ON* */ - -static clib_error_t * -set_ip6_vxlan_gbp_bypass (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) -{ - return set_ip_vxlan_gbp_bypass (1, input, cmd); -} - -/*? - * This command adds the 'ip6-vxlan-gbp-bypass' graph node for a given - * interface. By adding the IPv6 vxlan-gbp-bypass graph node to an interface, - * the node checks for and validate input vxlan_gbp packet and bypass - * ip6-lookup, ip6-local, ip6-udp-lookup nodes to speedup vxlan_gbp packet - * forwarding. This node will cause extra overhead to for non-vxlan packets - * which is kept at a minimum. - * - * @cliexpar - * @parblock - * Example of graph node before ip6-vxlan-gbp-bypass is enabled: - * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass} - * Name Next Previous - * ip6-vxlan-gbp-bypass error-drop [0] - * vxlan6-gbp-input [1] - * ip6-lookup [2] - * @cliexend - * - * Example of how to enable ip6-vxlan-gbp-bypass on an interface: - * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0} - * - * Example of graph node after ip6-vxlan-gbp-bypass is enabled: - * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass} - * Name Next Previous - * ip6-vxlan-gbp-bypass error-drop [0] ip6-input - * vxlan6-gbp-input [1] ip4-input-no-checksum - * ip6-lookup [2] - * @cliexend - * - * Example of how to display the feature enabled on an interface: - * @cliexstart{show ip interface features GigabitEthernet2/0/0} - * IP feature paths configured on GigabitEthernet2/0/0... - * ... - * ipv6 unicast: - * ip6-vxlan-gbp-bypass - * ip6-lookup - * ... - * @cliexend - * - * Example of how to disable ip6-vxlan-gbp-bypass on an interface: - * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0 del} - * @endparblock -?*/ -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gbp_bypass_command, static) = { - .path = "set interface ip6 vxlan-gbp-bypass", - .function = set_ip6_vxlan_gbp_bypass, - .short_help = "set interface ip6 vxlan-gbp-bypass <interface> [del]", -}; -/* *INDENT-ON* */ - -#define VXLAN_GBP_HASH_NUM_BUCKETS (2 * 1024) -#define VXLAN_GBP_HASH_MEMORY_SIZE (1 << 20) - -clib_error_t * -vxlan_gbp_init (vlib_main_t * vm) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - vxm->vnet_main = vnet_get_main (); - vxm->vlib_main = vm; - - /* initialize the ip6 hash */ - clib_bihash_init_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, "vxlan4-gbp", - VXLAN_GBP_HASH_NUM_BUCKETS, - VXLAN_GBP_HASH_MEMORY_SIZE); - clib_bihash_init_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, "vxlan6-gbp", - VXLAN_GBP_HASH_NUM_BUCKETS, - VXLAN_GBP_HASH_MEMORY_SIZE); - vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword)); - vxm->mcast_shared = hash_create_mem (0, - sizeof (ip46_address_t), - sizeof (mcast_shared_t)); - - fib_node_register_type (FIB_NODE_TYPE_VXLAN_GBP_TUNNEL, &vxlan_gbp_vft); - - punt_hdl = vlib_punt_client_register ("vxlan-gbp"); - - vlib_punt_reason_alloc (punt_hdl, "VXLAN-GBP-no-such-v4-tunnel", NULL, NULL, - &vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4], - VNET_PUNT_REASON_F_IP4_PACKET, - format_vnet_punt_reason_flags); - vlib_punt_reason_alloc (punt_hdl, "VXLAN-GBP-no-such-v6-tunnel", NULL, NULL, - &vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP6], - VNET_PUNT_REASON_F_IP6_PACKET, - format_vnet_punt_reason_flags); - - return (0); -} - -/* *INDENT-OFF* */ -VLIB_INIT_FUNCTION (vxlan_gbp_init) = -{ - .runs_after = VLIB_INITS("punt_init"), -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/vxlan_gbp.h b/src/vnet/vxlan-gbp/vxlan_gbp.h deleted file mode 100644 index fe93587cb00..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp.h +++ /dev/null @@ -1,250 +0,0 @@ -/* - * Copyright (c) 2018 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. - */ -#ifndef included_vnet_vxlan_gbp_h -#define included_vnet_vxlan_gbp_h - -#include <vppinfra/error.h> -#include <vppinfra/hash.h> -#include <vppinfra/bihash_16_8.h> -#include <vppinfra/bihash_24_8.h> -#include <vnet/vnet.h> -#include <vnet/ip/ip.h> -#include <vnet/l2/l2_input.h> -#include <vnet/l2/l2_output.h> -#include <vnet/l2/l2_bd.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/vxlan-gbp/vxlan_gbp_packet.h> -#include <vnet/ip/ip4_packet.h> -#include <vnet/ip/ip6_packet.h> -#include <vnet/udp/udp_local.h> -#include <vnet/udp/udp_packet.h> -#include <vnet/dpo/dpo.h> -#include <vnet/adj/adj_types.h> - -/* *INDENT-OFF* */ -typedef CLIB_PACKED (struct { - ip4_header_t ip4; /* 20 bytes */ - udp_header_t udp; /* 8 bytes */ - vxlan_gbp_header_t vxlan_gbp; /* 8 bytes */ -}) ip4_vxlan_gbp_header_t; - -typedef CLIB_PACKED (struct { - ip6_header_t ip6; /* 40 bytes */ - udp_header_t udp; /* 8 bytes */ - vxlan_gbp_header_t vxlan_gbp; /* 8 bytes */ -}) ip6_vxlan_gbp_header_t; -/* *INDENT-ON* */ - -/* -* Key fields: remote ip, vni on incoming VXLAN packet -* all fields in NET byte order -*/ -typedef clib_bihash_kv_16_8_t vxlan4_gbp_tunnel_key_t; - -/* -* Key fields: remote ip, vni and fib index on incoming VXLAN packet -* ip, vni fields in NET byte order -* fib index field in host byte order -*/ -typedef clib_bihash_kv_24_8_t vxlan6_gbp_tunnel_key_t; - -typedef enum vxlan_gbp_tunnel_mode_t_ -{ - VXLAN_GBP_TUNNEL_MODE_L2, - VXLAN_GBP_TUNNEL_MODE_L3, -} vxlan_gbp_tunnel_mode_t; - -extern u8 *format_vxlan_gbp_tunnel_mode (u8 * s, va_list * args); - -typedef struct -{ - /* Required for pool_get_aligned */ - CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); - - /* FIB DPO for IP forwarding of VXLAN encap packet */ - dpo_id_t next_dpo; - - /* flags */ - u16 flags; - - /* vxlan VNI in HOST byte order */ - u32 vni; - - /* tunnel src and dst addresses */ - ip46_address_t src; - ip46_address_t dst; - - /* mcast packet output intfc index (used only if dst is mcast) */ - u32 mcast_sw_if_index; - - /* The FIB index for src/dst addresses */ - u32 encap_fib_index; - - /* vnet intfc index */ - u32 sw_if_index; - u32 hw_if_index; - - /** Next node after VxLAN-GBP encap */ - uword encap_next_node; - - /** - * Tunnel mode. - * L2 tunnels decap to L2 path, L3 tunnels to the L3 path - */ - vxlan_gbp_tunnel_mode_t mode; - - /** - * Linkage into the FIB object graph - */ - fib_node_t node; - - /* - * The FIB entry for (depending on VXLAN-GBP tunnel is unicast or mcast) - * sending unicast VXLAN-GBP encap packets or receiving mcast VXLAN-GBP packets - */ - fib_node_index_t fib_entry_index; - adj_index_t mcast_adj_index; - - /** - * The tunnel is a child of the FIB entry for its destination. This is - * so it receives updates when the forwarding information for that entry - * changes. - * The tunnels sibling index on the FIB entry's dependency list. - */ - u32 sibling_index; - - u32 dev_instance; /* Real device instance in tunnel vector */ - u32 user_instance; /* Instance name being shown to user */ - - - VNET_DECLARE_REWRITE; -} vxlan_gbp_tunnel_t; - -#define foreach_vxlan_gbp_input_next \ - _(DROP, "error-drop") \ - _(PUNT, "punt-dispatch") \ - _(L2_INPUT, "l2-input") \ - _(IP4_INPUT, "ip4-input") \ - _(IP6_INPUT, "ip6-input") - -typedef enum -{ -#define _(s,n) VXLAN_GBP_INPUT_NEXT_##s, - foreach_vxlan_gbp_input_next -#undef _ - VXLAN_GBP_INPUT_N_NEXT, -} vxlan_gbp_input_next_t; - -typedef enum -{ -#define vxlan_gbp_error(n,s) VXLAN_GBP_ERROR_##n, -#include <vnet/vxlan-gbp/vxlan_gbp_error.def> -#undef vxlan_gbp_error - VXLAN_GBP_N_ERROR, -} vxlan_gbp_input_error_t; - -/** - * Call back function packets that do not match a configured tunnel - */ -typedef vxlan_gbp_input_next_t (*vxlan_bgp_no_tunnel_t) (vlib_buffer_t * b, - u32 thread_index, - u8 is_ip6); - -typedef struct -{ - /* vector of encap tunnel instances */ - vxlan_gbp_tunnel_t *tunnels; - - /* lookup tunnel by key */ - clib_bihash_16_8_t vxlan4_gbp_tunnel_by_key; /* keyed on ipv4.dst + fib + vni */ - clib_bihash_24_8_t vxlan6_gbp_tunnel_by_key; /* keyed on ipv6.dst + fib + vni */ - - /* local VTEP IPs ref count used by vxlan-bypass node to check if - received VXLAN packet DIP matches any local VTEP address */ - uword *vtep4; /* local ip4 VTEPs keyed on their ip4 addr */ - uword *vtep6; /* local ip6 VTEPs keyed on their ip6 addr */ - - /* mcast shared info */ - uword *mcast_shared; /* keyed on mcast ip46 addr */ - - /* Mapping from sw_if_index to tunnel index */ - u32 *tunnel_index_by_sw_if_index; - - /* On demand udp port registration */ - u32 udp_ports_registered; - - /* convenience */ - vlib_main_t *vlib_main; - vnet_main_t *vnet_main; - - /* Record used instances */ - uword *instance_used; - - /** - * Punt reasons for no such tunnel - */ - vlib_punt_reason_t punt_no_such_tunnel[FIB_PROTOCOL_IP_MAX]; -} vxlan_gbp_main_t; - -extern vxlan_gbp_main_t vxlan_gbp_main; - -extern vlib_node_registration_t vxlan4_gbp_input_node; -extern vlib_node_registration_t vxlan6_gbp_input_node; -extern vlib_node_registration_t vxlan4_gbp_encap_node; -extern vlib_node_registration_t vxlan6_gbp_encap_node; -extern void vxlan_gbp_register_udp_ports (void); -extern void vxlan_gbp_unregister_udp_ports (void); - -u8 *format_vxlan_gbp_encap_trace (u8 * s, va_list * args); - -typedef struct -{ - u8 is_add; - u8 is_ip6; - u32 instance; - vxlan_gbp_tunnel_mode_t mode; - ip46_address_t src, dst; - u32 mcast_sw_if_index; - u32 encap_fib_index; - u32 vni; -} vnet_vxlan_gbp_tunnel_add_del_args_t; - -int vnet_vxlan_gbp_tunnel_add_del - (vnet_vxlan_gbp_tunnel_add_del_args_t * a, u32 * sw_if_indexp); -int vnet_vxlan_gbp_tunnel_del (u32 sw_if_indexp); - -void vnet_int_vxlan_gbp_bypass_mode (u32 sw_if_index, u8 is_ip6, - u8 is_enable); - -always_inline u32 -vxlan_gbp_tunnel_by_sw_if_index (u32 sw_if_index) -{ - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - - if (sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) - return ~0; - - return (vxm->tunnel_index_by_sw_if_index[sw_if_index]); -} - -#endif /* included_vnet_vxlan_gbp_h */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/vxlan_gbp_api.c b/src/vnet/vxlan-gbp/vxlan_gbp_api.c deleted file mode 100644 index a3f2246f463..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp_api.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - *------------------------------------------------------------------ - * vxlan_gbp_api.c - vxlan gbp api - * - * Copyright (c) 2018 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 <vnet/vnet.h> -#include <vlibmemory/api.h> - -#include <vnet/interface.h> -#include <vnet/api_errno.h> -#include <vnet/feature/feature.h> -#include <vnet/vxlan-gbp/vxlan_gbp.h> -#include <vnet/fib/fib_table.h> -#include <vnet/ip/ip_types_api.h> -#include <vnet/format_fns.h> - -#include <vxlan-gbp/vxlan_gbp.api_enum.h> -#include <vxlan-gbp/vxlan_gbp.api_types.h> - -#define REPLY_MSG_ID_BASE msg_id_base -#include <vlibapi/api_helper_macros.h> - -static u16 msg_id_base; - -static void - vl_api_sw_interface_set_vxlan_gbp_bypass_t_handler - (vl_api_sw_interface_set_vxlan_gbp_bypass_t * mp) -{ - vl_api_sw_interface_set_vxlan_gbp_bypass_reply_t *rmp; - int rv = 0; - u32 sw_if_index = ntohl (mp->sw_if_index); - - VALIDATE_SW_IF_INDEX (mp); - - vnet_int_vxlan_gbp_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable); - BAD_SW_IF_INDEX_LABEL; - - REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_GBP_BYPASS_REPLY); -} - -static int -vxlan_gbp_tunnel_mode_decode (vl_api_vxlan_gbp_api_tunnel_mode_t in, - vxlan_gbp_tunnel_mode_t * out) -{ - in = clib_net_to_host_u32 (in); - - switch (in) - { - case VXLAN_GBP_API_TUNNEL_MODE_L2: - *out = VXLAN_GBP_TUNNEL_MODE_L2; - return (0); - case VXLAN_GBP_API_TUNNEL_MODE_L3: - *out = VXLAN_GBP_TUNNEL_MODE_L3; - return (0); - } - return (VNET_API_ERROR_INVALID_VALUE); -} - -static void vl_api_vxlan_gbp_tunnel_add_del_t_handler - (vl_api_vxlan_gbp_tunnel_add_del_t * mp) -{ - vl_api_vxlan_gbp_tunnel_add_del_reply_t *rmp; - vxlan_gbp_tunnel_mode_t mode; - ip46_address_t src, dst; - ip46_type_t itype; - int rv = 0; - u32 sw_if_index = ~0; - u32 fib_index; - - itype = ip_address_decode (&mp->tunnel.src, &src); - itype = ip_address_decode (&mp->tunnel.dst, &dst); - - fib_index = fib_table_find (fib_proto_from_ip46 (itype), - ntohl (mp->tunnel.encap_table_id)); - if (fib_index == ~0) - { - rv = VNET_API_ERROR_NO_SUCH_FIB; - goto out; - } - - rv = vxlan_gbp_tunnel_mode_decode (mp->tunnel.mode, &mode); - - if (rv) - goto out; - - vnet_vxlan_gbp_tunnel_add_del_args_t a = { - .is_add = mp->is_add, - .is_ip6 = (itype == IP46_TYPE_IP6), - .instance = ntohl (mp->tunnel.instance), - .mcast_sw_if_index = ntohl (mp->tunnel.mcast_sw_if_index), - .encap_fib_index = fib_index, - .vni = ntohl (mp->tunnel.vni), - .dst = dst, - .src = src, - .mode = mode, - }; - - /* Check src & dst are different */ - if (ip46_address_cmp (&a.dst, &a.src) == 0) - { - rv = VNET_API_ERROR_SAME_SRC_DST; - goto out; - } - if (ip46_address_is_multicast (&a.dst) && - !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index)) - { - rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; - goto out; - } - - rv = vnet_vxlan_gbp_tunnel_add_del (&a, &sw_if_index); - -out: - /* *INDENT-OFF* */ - REPLY_MACRO2(VL_API_VXLAN_GBP_TUNNEL_ADD_DEL_REPLY, - ({ - rmp->sw_if_index = ntohl (sw_if_index); - })); - /* *INDENT-ON* */ -} - -static void send_vxlan_gbp_tunnel_details - (vxlan_gbp_tunnel_t * t, vl_api_registration_t * reg, u32 context) -{ - vl_api_vxlan_gbp_tunnel_details_t *rmp; - ip46_type_t itype = (ip46_address_is_ip4 (&t->dst) ? - IP46_TYPE_IP4 : IP46_TYPE_IP6); - - rmp = vl_msg_api_alloc (sizeof (*rmp)); - clib_memset (rmp, 0, sizeof (*rmp)); - rmp->_vl_msg_id = - ntohs (VL_API_VXLAN_GBP_TUNNEL_DETAILS + REPLY_MSG_ID_BASE); - - ip_address_encode (&t->src, itype, &rmp->tunnel.src); - ip_address_encode (&t->dst, itype, &rmp->tunnel.dst); - rmp->tunnel.encap_table_id = - fib_table_get_table_id (t->encap_fib_index, fib_proto_from_ip46 (itype)); - - rmp->tunnel.instance = htonl (t->user_instance); - rmp->tunnel.mcast_sw_if_index = htonl (t->mcast_sw_if_index); - rmp->tunnel.vni = htonl (t->vni); - rmp->tunnel.sw_if_index = htonl (t->sw_if_index); - rmp->context = context; - - vl_api_send_msg (reg, (u8 *) rmp); -} - -static void vl_api_vxlan_gbp_tunnel_dump_t_handler - (vl_api_vxlan_gbp_tunnel_dump_t * mp) -{ - vl_api_registration_t *reg; - vxlan_gbp_main_t *vxm = &vxlan_gbp_main; - vxlan_gbp_tunnel_t *t; - u32 sw_if_index; - - reg = vl_api_client_index_to_registration (mp->client_index); - if (!reg) - return; - - sw_if_index = ntohl (mp->sw_if_index); - - if (~0 == sw_if_index) - { - /* *INDENT-OFF* */ - pool_foreach (t, vxm->tunnels) - { - send_vxlan_gbp_tunnel_details(t, reg, mp->context); - } - /* *INDENT-ON* */ - } - else - { - if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) || - (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index])) - { - return; - } - t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]]; - send_vxlan_gbp_tunnel_details (t, reg, mp->context); - } -} - -#include <vxlan-gbp/vxlan_gbp.api.c> -static clib_error_t * -vxlan_gbp_api_hookup (vlib_main_t * vm) -{ - /* - * Set up the (msg_name, crc, message-id) table - */ - msg_id_base = setup_message_id_table (); - - return 0; -} - -VLIB_API_INIT_FUNCTION (vxlan_gbp_api_hookup); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/vxlan_gbp_error.def b/src/vnet/vxlan-gbp/vxlan_gbp_error.def deleted file mode 100644 index 43ad4dac064..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp_error.def +++ /dev/null @@ -1,17 +0,0 @@ -/* - * Copyright (c) 2018 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. - */ -vxlan_gbp_error (DECAPSULATED, "good packets decapsulated") -vxlan_gbp_error (NO_SUCH_TUNNEL, "no such tunnel packets") -vxlan_gbp_error (BAD_FLAGS, "packets with bad flags field in vxlan gbp header") diff --git a/src/vnet/vxlan-gbp/vxlan_gbp_packet.c b/src/vnet/vxlan-gbp/vxlan_gbp_packet.c deleted file mode 100644 index 01c7a19bfb9..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp_packet.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (c) 2018 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 <vnet/vxlan-gbp/vxlan_gbp_packet.h> - -u8 * -format_vxlan_gbp_header_flags (u8 * s, va_list * args) -{ - vxlan_gbp_flags_t flags = va_arg (*args, int); - - if (VXLAN_GBP_FLAGS_NONE == flags) - { - s = format (s, "None"); - } -#define _(n,f) { \ - if (VXLAN_GBP_FLAGS_##f & flags) \ - s = format (s, #f); \ - } - foreach_vxlan_gbp_flags -#undef _ - return (s); -} - -u8 * -format_vxlan_gbp_header_gpflags (u8 * s, va_list * args) -{ - vxlan_gbp_gpflags_t flags = va_arg (*args, int); - - if (VXLAN_GBP_GPFLAGS_NONE == flags) - { - s = format (s, "None"); - } -#define _(n,f) { \ - if (VXLAN_GBP_GPFLAGS_##f & flags) \ - s = format (s, #f); \ - } - foreach_vxlan_gbp_gpflags -#undef _ - return (s); -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/vxlan-gbp/vxlan_gbp_packet.h b/src/vnet/vxlan-gbp/vxlan_gbp_packet.h deleted file mode 100644 index e655b333b89..00000000000 --- a/src/vnet/vxlan-gbp/vxlan_gbp_packet.h +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (c) 2018 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. - */ -#ifndef __included_vxlan_gbp_packet_h__ -#define __included_vxlan_gbp_packet_h__ 1 - -#include <vlib/vlib.h> - -/* - * From draft-smith-vxlan-group-policy-04.txt - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |G|R|R|R|I|R|R|R|R|D|E|S|A|R|R|R| Group Policy ID | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | VXLAN Network Identifier (VNI) | Reserved | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * G bit: Bit 0 of the initial word is defined as the G (Group Based - * Policy Extension) bit. - * - * I bit: where the I flag MUST be set to 1 for a valid - * VXLAN Network ID (VNI). - * - * D bit: Bit 9 of the initial word is defined as the Don't Learn bit. - * When set, this bit indicates that the egress VTEP MUST NOT learn the - * source address of the encapsulated frame. - * - * E bit: Bit 10 of the initial word is defined as the bounce packet. - * When set, this bit indicates that packet is bounced and must be - * dropped. - * - * S bit: Bit 11 of the initial word is defined as the source policy - * applied bit. - * - * A bit: Bit 12 of the initial word is defined as the A (Policy - * Applied) bit. This bit is only defined as the A bit when the G bit - * is set to 1. - * - * A = 1 indicates that the group policy has already been applied to - * this packet. Policies MUST NOT be applied by devices when the A - * bit is set. - * - * A = 0 indicates that the group policy has not been applied to this - * packet. Group policies MUST be applied by devices when the A bit - * is set to 0 and the destination Group has been determined. - * Devices that apply the Group policy MUST set the A bit to 1 after - * the policy has been applied. - * - * Group Policy ID: 16 bit identifier that indicates the source TSI - * Group membership being encapsulated by VXLAN. Its value is source - * class id. - * - * FOR INTERNAL USE ONLY - * R bit: Bit 12 of the initial word is defined as the reflection bit - * Set on packet rx checked on tx and dropped if set. this prevents - * packets recieved on an iVXLAN tunnel being reflected back to - * another. - */ - -typedef struct -{ - union - { - struct - { - union - { - struct - { - u8 flag_g_i; - u8 gpflags; - }; - u16 flags; - }; - u16 sclass; - }; - u32 flags_sclass_as_u32; - }; - u32 vni_reserved; -} vxlan_gbp_header_t; - -#define foreach_vxlan_gbp_flags \ - _ (0x80, G) \ - _ (0x08, I) - -typedef enum -{ - VXLAN_GBP_FLAGS_NONE = 0, -#define _(n,f) VXLAN_GBP_FLAGS_##f = n, - foreach_vxlan_gbp_flags -#undef _ -} __attribute__ ((packed)) vxlan_gbp_flags_t; - -#define VXLAN_GBP_FLAGS_GI (VXLAN_GBP_FLAGS_G|VXLAN_GBP_FLAGS_I) - -#define foreach_vxlan_gbp_gpflags \ -_ (0x40, D) \ -_ (0x20, E) \ -_ (0x10, S) \ -_ (0x08, A) \ -_ (0x04, R) - -typedef enum -{ - VXLAN_GBP_GPFLAGS_NONE = 0, -#define _(n,f) VXLAN_GBP_GPFLAGS_##f = n, - foreach_vxlan_gbp_gpflags -#undef _ -} __attribute__ ((packed)) vxlan_gbp_gpflags_t; - -static inline u32 -vxlan_gbp_get_vni (vxlan_gbp_header_t * h) -{ - u32 vni_reserved_host_byte_order; - - vni_reserved_host_byte_order = clib_net_to_host_u32 (h->vni_reserved); - return vni_reserved_host_byte_order >> 8; -} - -static inline u16 -vxlan_gbp_get_sclass (vxlan_gbp_header_t * h) -{ - u16 sclass_host_byte_order; - - sclass_host_byte_order = clib_net_to_host_u16 (h->sclass); - return sclass_host_byte_order; -} - -static inline vxlan_gbp_gpflags_t -vxlan_gbp_get_gpflags (vxlan_gbp_header_t * h) -{ - return h->gpflags; -} - -static inline vxlan_gbp_flags_t -vxlan_gbp_get_flags (vxlan_gbp_header_t * h) -{ - return h->flag_g_i; -} - -static inline void -vxlan_gbp_set_header (vxlan_gbp_header_t * h, u32 vni) -{ - h->vni_reserved = clib_host_to_net_u32 (vni << 8); - h->flags_sclass_as_u32 = 0; - h->flag_g_i = VXLAN_GBP_FLAGS_I | VXLAN_GBP_FLAGS_G; -} - -extern u8 *format_vxlan_gbp_header_flags (u8 * s, va_list * args); -extern u8 *format_vxlan_gbp_header_gpflags (u8 * s, va_list * args); - -#endif /* __included_vxlan_gbp_packet_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |