diff options
Diffstat (limited to 'src/vnet/map/ip4_map.c')
| -rw-r--r-- | src/vnet/map/ip4_map.c | 754 |
1 files changed, 0 insertions, 754 deletions
diff --git a/src/vnet/map/ip4_map.c b/src/vnet/map/ip4_map.c deleted file mode 100644 index 6a3bdd51f44..00000000000 --- a/src/vnet/map/ip4_map.c +++ /dev/null @@ -1,754 +0,0 @@ -/* - * Copyright (c) 2015 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. - */ -/* - * Defines used for testing various optimisation schemes - */ -#define MAP_ENCAP_DUAL 0 - -#include "map.h" -#include "../ip/ip_frag.h" -#include <vnet/ip/ip4_to_ip6.h> - -vlib_node_registration_t ip4_map_reass_node; - -enum ip4_map_next_e -{ - IP4_MAP_NEXT_IP6_LOOKUP, -#ifdef MAP_SKIP_IP6_LOOKUP - IP4_MAP_NEXT_IP6_REWRITE, -#endif - IP4_MAP_NEXT_IP4_FRAGMENT, - IP4_MAP_NEXT_IP6_FRAGMENT, - IP4_MAP_NEXT_REASS, - IP4_MAP_NEXT_ICMP_ERROR, - IP4_MAP_NEXT_DROP, - IP4_MAP_N_NEXT, -}; - -enum ip4_map_reass_next_t -{ - IP4_MAP_REASS_NEXT_IP6_LOOKUP, - IP4_MAP_REASS_NEXT_IP4_FRAGMENT, - IP4_MAP_REASS_NEXT_DROP, - IP4_MAP_REASS_N_NEXT, -}; - -typedef struct -{ - u32 map_domain_index; - u16 port; - u8 cached; -} map_ip4_map_reass_trace_t; - -u8 * -format_ip4_map_reass_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 *); - map_ip4_map_reass_trace_t *t = va_arg (*args, map_ip4_map_reass_trace_t *); - return format (s, "MAP domain index: %d L4 port: %u Status: %s", - t->map_domain_index, t->port, - t->cached ? "cached" : "forwarded"); -} - -static_always_inline u16 -ip4_map_port_and_security_check (map_domain_t * d, ip4_header_t * ip, - u32 * next, u8 * error) -{ - u16 port = 0; - - if (d->psid_length > 0) - { - if (ip4_get_fragment_offset (ip) == 0) - { - if (PREDICT_FALSE - ((ip->ip_version_and_header_length != 0x45) - || clib_host_to_net_u16 (ip->length) < 28)) - { - return 0; - } - port = ip4_get_port (ip, 0); - if (port) - { - /* Verify that port is not among the well-known ports */ - if ((d->psid_offset > 0) - && (clib_net_to_host_u16 (port) < - (0x1 << (16 - d->psid_offset)))) - { - *error = MAP_ERROR_ENCAP_SEC_CHECK; - } - else - { - if (ip4_get_fragment_more (ip)) - *next = IP4_MAP_NEXT_REASS; - return (port); - } - } - else - { - *error = MAP_ERROR_BAD_PROTOCOL; - } - } - else - { - *next = IP4_MAP_NEXT_REASS; - } - } - return (0); -} - -/* - * ip4_map_vtcfl - */ -static_always_inline u32 -ip4_map_vtcfl (ip4_header_t * ip4, vlib_buffer_t * p) -{ - map_main_t *mm = &map_main; - u8 tc = mm->tc_copy ? ip4->tos : mm->tc; - u32 vtcfl = 0x6 << 28; - vtcfl |= tc << 20; - vtcfl |= vnet_buffer (p)->ip.flow_hash & 0x000fffff; - - return (clib_host_to_net_u32 (vtcfl)); -} - -static_always_inline bool -ip4_map_ip6_lookup_bypass (vlib_buffer_t * p0, ip4_header_t * ip) -{ -#ifdef MAP_SKIP_IP6_LOOKUP - if (FIB_NODE_INDEX_INVALID != pre_resolved[FIB_PROTOCOL_IP6].fei) - { - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = - pre_resolved[FIB_PROTOCOL_IP6].dpo.dpoi_index; - return (true); - } -#endif - return (false); -} - -/* - * ip4_map_ttl - */ -static inline void -ip4_map_decrement_ttl (ip4_header_t * ip, u8 * error) -{ - i32 ttl = ip->ttl; - - /* Input node should have reject packets with ttl 0. */ - ASSERT (ip->ttl > 0); - - u32 checksum = ip->checksum + clib_host_to_net_u16 (0x0100); - checksum += checksum >= 0xffff; - ip->checksum = checksum; - ttl -= 1; - ip->ttl = ttl; - *error = ttl <= 0 ? IP4_ERROR_TIME_EXPIRED : *error; - - /* Verify checksum. */ - ASSERT (ip->checksum == ip4_header_checksum (ip)); -} - -static u32 -ip4_map_fragment (vlib_buffer_t * b, u16 mtu, bool df, u8 * error) -{ - map_main_t *mm = &map_main; - - if (mm->frag_inner) - { - ip_frag_set_vnet_buffer (b, sizeof (ip6_header_t), mtu, - IP4_FRAG_NEXT_IP6_LOOKUP, - IP_FRAG_FLAG_IP6_HEADER); - return (IP4_MAP_NEXT_IP4_FRAGMENT); - } - else - { - if (df && !mm->frag_ignore_df) - { - icmp4_error_set_vnet_buffer (b, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set, - mtu); - vlib_buffer_advance (b, sizeof (ip6_header_t)); - *error = MAP_ERROR_DF_SET; - return (IP4_MAP_NEXT_ICMP_ERROR); - } - ip_frag_set_vnet_buffer (b, 0, mtu, IP6_FRAG_NEXT_IP6_LOOKUP, - IP_FRAG_FLAG_IP6_HEADER); - return (IP4_MAP_NEXT_IP6_FRAGMENT); - } -} - -/* - * ip4_map - */ -static uword -ip4_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = - vlib_node_get_runtime (vm, ip4_map_node.index); - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - map_main_t *mm = &map_main; - vlib_combined_counter_main_t *cm = mm->domain_counters; - u32 thread_index = vlib_get_thread_index (); - - while (n_left_from > 0) - { - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - /* Dual loop */ - while (n_left_from >= 4 && n_left_to_next >= 2) - { - u32 pi0, pi1; - vlib_buffer_t *p0, *p1; - map_domain_t *d0, *d1; - u8 error0 = MAP_ERROR_NONE, error1 = MAP_ERROR_NONE; - ip4_header_t *ip40, *ip41; - u16 port0 = 0, port1 = 0; - ip6_header_t *ip6h0, *ip6h1; - u32 map_domain_index0 = ~0, map_domain_index1 = ~0; - u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP, next1 = - IP4_MAP_NEXT_IP6_LOOKUP; - - /* 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, STORE); - vlib_prefetch_buffer_header (p3, STORE); - /* IPv4 + 8 = 28. possibly plus -40 */ - CLIB_PREFETCH (p2->data - 40, 68, STORE); - CLIB_PREFETCH (p3->data - 40, 68, STORE); - } - - pi0 = to_next[0] = from[0]; - pi1 = to_next[1] = from[1]; - from += 2; - n_left_from -= 2; - to_next += 2; - n_left_to_next -= 2; - - p0 = vlib_get_buffer (vm, pi0); - p1 = vlib_get_buffer (vm, pi1); - ip40 = vlib_buffer_get_current (p0); - ip41 = vlib_buffer_get_current (p1); - map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - d0 = ip4_map_get_domain (map_domain_index0); - map_domain_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; - d1 = ip4_map_get_domain (map_domain_index1); - ASSERT (d0); - ASSERT (d1); - - /* - * Shared IPv4 address - */ - port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0); - port1 = ip4_map_port_and_security_check (d1, ip41, &next1, &error1); - - /* Decrement IPv4 TTL */ - ip4_map_decrement_ttl (ip40, &error0); - ip4_map_decrement_ttl (ip41, &error1); - bool df0 = - ip40->flags_and_fragment_offset & - clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); - bool df1 = - ip41->flags_and_fragment_offset & - clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); - - /* MAP calc */ - u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32); - u32 da41 = clib_net_to_host_u32 (ip41->dst_address.as_u32); - u16 dp40 = clib_net_to_host_u16 (port0); - u16 dp41 = clib_net_to_host_u16 (port1); - u64 dal60 = map_get_pfx (d0, da40, dp40); - u64 dal61 = map_get_pfx (d1, da41, dp41); - u64 dar60 = map_get_sfx (d0, da40, dp40); - u64 dar61 = map_get_sfx (d1, da41, dp41); - if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE - && next0 != IP4_MAP_NEXT_REASS) - error0 = MAP_ERROR_NO_BINDING; - if (dal61 == 0 && dar61 == 0 && error1 == MAP_ERROR_NONE - && next1 != IP4_MAP_NEXT_REASS) - error1 = MAP_ERROR_NO_BINDING; - - /* construct ipv6 header */ - vlib_buffer_advance (p0, -sizeof (ip6_header_t)); - vlib_buffer_advance (p1, -sizeof (ip6_header_t)); - ip6h0 = vlib_buffer_get_current (p0); - ip6h1 = vlib_buffer_get_current (p1); - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; - vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0; - - ip6h0->ip_version_traffic_class_and_flow_label = - ip4_map_vtcfl (ip40, p0); - ip6h1->ip_version_traffic_class_and_flow_label = - ip4_map_vtcfl (ip41, p1); - ip6h0->payload_length = ip40->length; - ip6h1->payload_length = ip41->length; - ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h1->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h0->hop_limit = 0x40; - ip6h1->hop_limit = 0x40; - ip6h0->src_address = d0->ip6_src; - ip6h1->src_address = d1->ip6_src; - ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60); - ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60); - ip6h1->dst_address.as_u64[0] = clib_host_to_net_u64 (dal61); - ip6h1->dst_address.as_u64[1] = clib_host_to_net_u64 (dar61); - - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) - { - if (PREDICT_FALSE - (d0->mtu - && (clib_net_to_host_u16 (ip6h0->payload_length) + - sizeof (*ip6h0) > d0->mtu))) - { - next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0); - } - else - { - next0 = - ip4_map_ip6_lookup_bypass (p0, - ip40) ? - IP4_MAP_NEXT_IP6_REWRITE : next0; - vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, - thread_index, - map_domain_index0, 1, - clib_net_to_host_u16 - (ip6h0->payload_length) + - 40); - } - } - else - { - next0 = IP4_MAP_NEXT_DROP; - } - - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE (error1 == MAP_ERROR_NONE)) - { - if (PREDICT_FALSE - (d1->mtu - && (clib_net_to_host_u16 (ip6h1->payload_length) + - sizeof (*ip6h1) > d1->mtu))) - { - next1 = ip4_map_fragment (p1, d1->mtu, df1, &error1); - } - else - { - next1 = - ip4_map_ip6_lookup_bypass (p1, - ip41) ? - IP4_MAP_NEXT_IP6_REWRITE : next1; - vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, - thread_index, - map_domain_index1, 1, - clib_net_to_host_u16 - (ip6h1->payload_length) + - 40); - } - } - else - { - next1 = IP4_MAP_NEXT_DROP; - } - - if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) - { - map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - } - if (PREDICT_FALSE (p1->flags & VLIB_BUFFER_IS_TRACED)) - { - map_trace_t *tr = vlib_add_trace (vm, node, p1, sizeof (*tr)); - tr->map_domain_index = map_domain_index1; - tr->port = port1; - } - - p0->error = error_node->errors[error0]; - p1->error = error_node->errors[error1]; - - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, - n_left_to_next, pi0, pi1, next0, - next1); - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 pi0; - vlib_buffer_t *p0; - map_domain_t *d0; - u8 error0 = MAP_ERROR_NONE; - ip4_header_t *ip40; - u16 port0 = 0; - ip6_header_t *ip6h0; - u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP; - u32 map_domain_index0 = ~0; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer (vm, pi0); - ip40 = vlib_buffer_get_current (p0); - map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - d0 = ip4_map_get_domain (map_domain_index0); - ASSERT (d0); - - /* - * Shared IPv4 address - */ - port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0); - - /* Decrement IPv4 TTL */ - ip4_map_decrement_ttl (ip40, &error0); - bool df0 = - ip40->flags_and_fragment_offset & - clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); - - /* MAP calc */ - u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32); - u16 dp40 = clib_net_to_host_u16 (port0); - u64 dal60 = map_get_pfx (d0, da40, dp40); - u64 dar60 = map_get_sfx (d0, da40, dp40); - if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE - && next0 != IP4_MAP_NEXT_REASS) - error0 = MAP_ERROR_NO_BINDING; - - /* construct ipv6 header */ - vlib_buffer_advance (p0, -(sizeof (ip6_header_t))); - ip6h0 = vlib_buffer_get_current (p0); - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; - - ip6h0->ip_version_traffic_class_and_flow_label = - ip4_map_vtcfl (ip40, p0); - ip6h0->payload_length = ip40->length; - ip6h0->protocol = IP_PROTOCOL_IP_IN_IP; - ip6h0->hop_limit = 0x40; - ip6h0->src_address = d0->ip6_src; - ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60); - ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60); - - /* - * Determine next node. Can be one of: - * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop - */ - if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) - { - if (PREDICT_FALSE - (d0->mtu - && (clib_net_to_host_u16 (ip6h0->payload_length) + - sizeof (*ip6h0) > d0->mtu))) - { - next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0); - } - else - { - next0 = - ip4_map_ip6_lookup_bypass (p0, - ip40) ? - IP4_MAP_NEXT_IP6_REWRITE : next0; - vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, - thread_index, - map_domain_index0, 1, - clib_net_to_host_u16 - (ip6h0->payload_length) + - 40); - } - } - else - { - next0 = IP4_MAP_NEXT_DROP; - } - - if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) - { - map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - } - - p0->error = error_node->errors[error0]; - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, pi0, next0); - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return frame->n_vectors; -} - -/* - * ip4_map_reass - */ -static uword -ip4_map_reass (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = - vlib_node_get_runtime (vm, ip4_map_reass_node.index); - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - map_main_t *mm = &map_main; - vlib_combined_counter_main_t *cm = mm->domain_counters; - u32 thread_index = vlib_get_thread_index (); - u32 *fragments_to_drop = NULL; - u32 *fragments_to_loopback = NULL; - - while (n_left_from > 0) - { - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 pi0; - vlib_buffer_t *p0; - map_domain_t *d0; - u8 error0 = MAP_ERROR_NONE; - ip4_header_t *ip40; - i32 port0 = 0; - ip6_header_t *ip60; - u32 next0 = IP4_MAP_REASS_NEXT_IP6_LOOKUP; - u32 map_domain_index0; - u8 cached = 0; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer (vm, pi0); - ip60 = vlib_buffer_get_current (p0); - ip40 = (ip4_header_t *) (ip60 + 1); - map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - d0 = ip4_map_get_domain (map_domain_index0); - - map_ip4_reass_lock (); - map_ip4_reass_t *r = map_ip4_reass_get (ip40->src_address.as_u32, - ip40->dst_address.as_u32, - ip40->fragment_id, - ip40->protocol, - &fragments_to_drop); - if (PREDICT_FALSE (!r)) - { - // Could not create a caching entry - error0 = MAP_ERROR_FRAGMENT_MEMORY; - } - else if (PREDICT_TRUE (ip4_get_fragment_offset (ip40))) - { - if (r->port >= 0) - { - // We know the port already - port0 = r->port; - } - else if (map_ip4_reass_add_fragment (r, pi0)) - { - // Not enough space for caching - error0 = MAP_ERROR_FRAGMENT_MEMORY; - map_ip4_reass_free (r, &fragments_to_drop); - } - else - { - cached = 1; - } - } - else if ((port0 = ip4_get_port (ip40, 0)) == 0) - { - // Could not find port. We'll free the reassembly. - error0 = MAP_ERROR_BAD_PROTOCOL; - port0 = 0; - map_ip4_reass_free (r, &fragments_to_drop); - } - else - { - r->port = port0; - map_ip4_reass_get_fragments (r, &fragments_to_loopback); - } - -#ifdef MAP_IP4_REASS_COUNT_BYTES - if (!cached && r) - { - r->forwarded += clib_host_to_net_u16 (ip40->length) - 20; - if (!ip4_get_fragment_more (ip40)) - r->expected_total = - ip4_get_fragment_offset (ip40) * 8 + - clib_host_to_net_u16 (ip40->length) - 20; - if (r->forwarded >= r->expected_total) - map_ip4_reass_free (r, &fragments_to_drop); - } -#endif - - map_ip4_reass_unlock (); - - // NOTE: Most operations have already been performed by ip4_map - // All we need is the right destination address - ip60->dst_address.as_u64[0] = - map_get_pfx_net (d0, ip40->dst_address.as_u32, port0); - ip60->dst_address.as_u64[1] = - map_get_sfx_net (d0, ip40->dst_address.as_u32, port0); - - if (PREDICT_FALSE - (d0->mtu - && (clib_net_to_host_u16 (ip60->payload_length) + - sizeof (*ip60) > d0->mtu))) - { - vnet_buffer (p0)->ip_frag.header_offset = sizeof (*ip60); - vnet_buffer (p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP6_LOOKUP; - vnet_buffer (p0)->ip_frag.mtu = d0->mtu; - vnet_buffer (p0)->ip_frag.flags = IP_FRAG_FLAG_IP6_HEADER; - next0 = IP4_MAP_REASS_NEXT_IP4_FRAGMENT; - } - - if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) - { - map_ip4_map_reass_trace_t *tr = - vlib_add_trace (vm, node, p0, sizeof (*tr)); - tr->map_domain_index = map_domain_index0; - tr->port = port0; - tr->cached = cached; - } - - if (cached) - { - //Dequeue the packet - n_left_to_next++; - to_next--; - } - else - { - if (error0 == MAP_ERROR_NONE) - vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, - thread_index, - map_domain_index0, 1, - clib_net_to_host_u16 - (ip60->payload_length) + 40); - next0 = - (error0 == MAP_ERROR_NONE) ? next0 : IP4_MAP_REASS_NEXT_DROP; - p0->error = error_node->errors[error0]; - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, pi0, next0); - } - - //Loopback when we reach the end of the inpu vector - if (n_left_from == 0 && vec_len (fragments_to_loopback)) - { - from = vlib_frame_vector_args (frame); - u32 len = vec_len (fragments_to_loopback); - if (len <= VLIB_FRAME_SIZE) - { - clib_memcpy (from, fragments_to_loopback, - sizeof (u32) * len); - n_left_from = len; - vec_reset_length (fragments_to_loopback); - } - else - { - clib_memcpy (from, - fragments_to_loopback + (len - - VLIB_FRAME_SIZE), - sizeof (u32) * VLIB_FRAME_SIZE); - n_left_from = VLIB_FRAME_SIZE; - _vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE; - } - } - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - map_send_all_to_node (vm, fragments_to_drop, node, - &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED], - IP4_MAP_REASS_NEXT_DROP); - - vec_free (fragments_to_drop); - vec_free (fragments_to_loopback); - return frame->n_vectors; -} - -static char *map_error_strings[] = { -#define _(sym,string) string, - foreach_map_error -#undef _ -}; - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE(ip4_map_node) = { - .function = ip4_map, - .name = "ip4-map", - .vector_size = sizeof(u32), - .format_trace = format_map_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = MAP_N_ERROR, - .error_strings = map_error_strings, - - .n_next_nodes = IP4_MAP_N_NEXT, - .next_nodes = { - [IP4_MAP_NEXT_IP6_LOOKUP] = "ip6-lookup", -#ifdef MAP_SKIP_IP6_LOOKUP - [IP4_MAP_NEXT_IP6_REWRITE] = "ip6-load-balance", -#endif - [IP4_MAP_NEXT_IP4_FRAGMENT] = "ip4-frag", - [IP4_MAP_NEXT_IP6_FRAGMENT] = "ip6-frag", - [IP4_MAP_NEXT_REASS] = "ip4-map-reass", - [IP4_MAP_NEXT_ICMP_ERROR] = "ip4-icmp-error", - [IP4_MAP_NEXT_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE(ip4_map_reass_node) = { - .function = ip4_map_reass, - .name = "ip4-map-reass", - .vector_size = sizeof(u32), - .format_trace = format_ip4_map_reass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = MAP_N_ERROR, - .error_strings = map_error_strings, - - .n_next_nodes = IP4_MAP_REASS_N_NEXT, - .next_nodes = { - [IP4_MAP_REASS_NEXT_IP6_LOOKUP] = "ip6-lookup", - [IP4_MAP_REASS_NEXT_IP4_FRAGMENT] = "ip4-frag", - [IP4_MAP_REASS_NEXT_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |