| /* |
| * 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. |
| */ |
| #include "map.h" |
| |
| #include "../ip/ip_frag.h" |
| |
| enum ip6_map_next_e |
| { |
| IP6_MAP_NEXT_IP4_LOOKUP, |
| #ifdef MAP_SKIP_IP6_LOOKUP |
| IP6_MAP_NEXT_IP4_REWRITE, |
| #endif |
| IP6_MAP_NEXT_IP6_REASS, |
| IP6_MAP_NEXT_IP4_REASS, |
| IP6_MAP_NEXT_IP4_FRAGMENT, |
| IP6_MAP_NEXT_IP6_ICMP_RELAY, |
| IP6_MAP_NEXT_IP6_LOCAL, |
| IP6_MAP_NEXT_DROP, |
| IP6_MAP_NEXT_ICMP, |
| IP6_MAP_N_NEXT, |
| }; |
| |
| enum ip6_map_ip6_reass_next_e |
| { |
| IP6_MAP_IP6_REASS_NEXT_IP6_MAP, |
| IP6_MAP_IP6_REASS_NEXT_DROP, |
| IP6_MAP_IP6_REASS_N_NEXT, |
| }; |
| |
| enum ip6_map_ip4_reass_next_e |
| { |
| IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP, |
| IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT, |
| IP6_MAP_IP4_REASS_NEXT_DROP, |
| IP6_MAP_IP4_REASS_N_NEXT, |
| }; |
| |
| enum ip6_icmp_relay_next_e |
| { |
| IP6_ICMP_RELAY_NEXT_IP4_LOOKUP, |
| IP6_ICMP_RELAY_NEXT_DROP, |
| IP6_ICMP_RELAY_N_NEXT, |
| }; |
| |
| vlib_node_registration_t ip6_map_ip4_reass_node; |
| vlib_node_registration_t ip6_map_ip6_reass_node; |
| static vlib_node_registration_t ip6_map_icmp_relay_node; |
| |
| typedef struct |
| { |
| u32 map_domain_index; |
| u16 port; |
| u8 cached; |
| } map_ip6_map_ip4_reass_trace_t; |
| |
| u8 * |
| format_ip6_map_ip4_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_ip6_map_ip4_reass_trace_t *t = |
| va_arg (*args, map_ip6_map_ip4_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"); |
| } |
| |
| typedef struct |
| { |
| u16 offset; |
| u16 frag_len; |
| u8 out; |
| } map_ip6_map_ip6_reass_trace_t; |
| |
| u8 * |
| format_ip6_map_ip6_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_ip6_map_ip6_reass_trace_t *t = |
| va_arg (*args, map_ip6_map_ip6_reass_trace_t *); |
| return format (s, "Offset: %d Fragment length: %d Status: %s", t->offset, |
| t->frag_len, t->out ? "out" : "in"); |
| } |
| |
| /* |
| * ip6_map_sec_check |
| */ |
| static_always_inline bool |
| ip6_map_sec_check (map_domain_t * d, u16 port, ip4_header_t * ip4, |
| ip6_header_t * ip6) |
| { |
| u16 sp4 = clib_net_to_host_u16 (port); |
| u32 sa4 = clib_net_to_host_u32 (ip4->src_address.as_u32); |
| u64 sal6 = map_get_pfx (d, sa4, sp4); |
| u64 sar6 = map_get_sfx (d, sa4, sp4); |
| |
| if (PREDICT_FALSE |
| (sal6 != clib_net_to_host_u64 (ip6->src_address.as_u64[0]) |
| || sar6 != clib_net_to_host_u64 (ip6->src_address.as_u64[1]))) |
| return (false); |
| return (true); |
| } |
| |
| static_always_inline void |
| ip6_map_security_check (map_domain_t * d, ip4_header_t * ip4, |
| ip6_header_t * ip6, u32 * next, u8 * error) |
| { |
| map_main_t *mm = &map_main; |
| if (d->ea_bits_len || d->rules) |
| { |
| if (d->psid_length > 0) |
| { |
| if (!ip4_is_fragment (ip4)) |
| { |
| u16 port = ip4_map_get_port (ip4, MAP_SENDER); |
| if (port) |
| { |
| if (mm->sec_check) |
| *error = |
| ip6_map_sec_check (d, port, ip4, |
| ip6) ? MAP_ERROR_NONE : |
| MAP_ERROR_DECAP_SEC_CHECK; |
| } |
| else |
| { |
| *error = MAP_ERROR_BAD_PROTOCOL; |
| } |
| } |
| else |
| { |
| *next = mm->sec_check_frag ? IP6_MAP_NEXT_IP4_REASS : *next; |
| } |
| } |
| } |
| } |
| |
| static_always_inline bool |
| ip6_map_ip4_lookup_bypass (vlib_buffer_t * p0, ip4_header_t * ip) |
| { |
| #ifdef MAP_SKIP_IP6_LOOKUP |
| if (FIB_NODE_INDEX_INVALID != pre_resolved[FIB_PROTOCOL_IP4].fei) |
| { |
| vnet_buffer (p0)->ip.adj_index[VLIB_TX] = |
| pre_resolved[FIB_PROTOCOL_IP4].dpo.dpoi_index; |
| return (true); |
| } |
| #endif |
| return (false); |
| } |
| |
| /* |
| * ip6_map |
| */ |
| static uword |
| ip6_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, ip6_map_node.index); |
| map_main_t *mm = &map_main; |
| vlib_combined_counter_main_t *cm = mm->domain_counters; |
| u32 thread_index = vlib_get_thread_index (); |
| |
| from = vlib_frame_vector_args (frame); |
| n_left_from = frame->n_vectors; |
| next_index = node->cached_next_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; |
| u8 error0 = MAP_ERROR_NONE; |
| u8 error1 = MAP_ERROR_NONE; |
| map_domain_t *d0 = 0, *d1 = 0; |
| ip4_header_t *ip40, *ip41; |
| ip6_header_t *ip60, *ip61; |
| u16 port0 = 0, port1 = 0; |
| u32 map_domain_index0 = ~0, map_domain_index1 = ~0; |
| u32 next0 = IP6_MAP_NEXT_IP4_LOOKUP; |
| u32 next1 = IP6_MAP_NEXT_IP4_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, LOAD); |
| vlib_prefetch_buffer_header (p3, LOAD); |
| |
| /* IPv6 + IPv4 header + 8 bytes of ULP */ |
| CLIB_PREFETCH (p2->data, 68, LOAD); |
| CLIB_PREFETCH (p3->data, 68, LOAD); |
| } |
| |
| 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); |
| ip60 = vlib_buffer_get_current (p0); |
| ip61 = vlib_buffer_get_current (p1); |
| vlib_buffer_advance (p0, sizeof (ip6_header_t)); |
| vlib_buffer_advance (p1, sizeof (ip6_header_t)); |
| ip40 = vlib_buffer_get_current (p0); |
| ip41 = vlib_buffer_get_current (p1); |
| |
| /* |
| * Encapsulated IPv4 packet |
| * - IPv4 fragmented -> Pass to virtual reassembly unless security check disabled |
| * - Lookup/Rewrite or Fragment node in case of packet > MTU |
| * Fragmented IPv6 packet |
| * ICMP IPv6 packet |
| * - Error -> Pass to ICMPv6/ICMPv4 relay |
| * - Info -> Pass to IPv6 local |
| * Anything else -> drop |
| */ |
| if (PREDICT_TRUE |
| (ip60->protocol == IP_PROTOCOL_IP_IN_IP |
| && clib_net_to_host_u16 (ip60->payload_length) > 20)) |
| { |
| d0 = |
| ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], |
| (ip4_address_t *) & ip40->src_address. |
| as_u32, &map_domain_index0, &error0); |
| } |
| else if (ip60->protocol == IP_PROTOCOL_ICMP6 && |
| clib_net_to_host_u16 (ip60->payload_length) > |
| sizeof (icmp46_header_t)) |
| { |
| icmp46_header_t *icmp = (void *) (ip60 + 1); |
| next0 = (icmp->type == ICMP6_echo_request |
| || icmp->type == |
| ICMP6_echo_reply) ? IP6_MAP_NEXT_IP6_LOCAL : |
| IP6_MAP_NEXT_IP6_ICMP_RELAY; |
| } |
| else if (ip60->protocol == IP_PROTOCOL_IPV6_FRAGMENTATION) |
| { |
| next0 = IP6_MAP_NEXT_IP6_REASS; |
| } |
| else |
| { |
| error0 = MAP_ERROR_BAD_PROTOCOL; |
| } |
| if (PREDICT_TRUE |
| (ip61->protocol == IP_PROTOCOL_IP_IN_IP |
| && clib_net_to_host_u16 (ip61->payload_length) > 20)) |
| { |
| d1 = |
| ip6_map_get_domain (vnet_buffer (p1)->ip.adj_index[VLIB_TX], |
| (ip4_address_t *) & ip41->src_address. |
| as_u32, &map_domain_index1, &error1); |
| } |
| else if (ip61->protocol == IP_PROTOCOL_ICMP6 && |
| clib_net_to_host_u16 (ip61->payload_length) > |
| sizeof (icmp46_header_t)) |
| { |
| icmp46_header_t *icmp = (void *) (ip61 + 1); |
| next1 = (icmp->type == ICMP6_echo_request |
| || icmp->type == |
| ICMP6_echo_reply) ? IP6_MAP_NEXT_IP6_LOCAL : |
| IP6_MAP_NEXT_IP6_ICMP_RELAY; |
| } |
| else if (ip61->protocol == IP_PROTOCOL_IPV6_FRAGMENTATION) |
| { |
| next1 = IP6_MAP_NEXT_IP6_REASS; |
| } |
| else |
| { |
| error1 = MAP_ERROR_BAD_PROTOCOL; |
| } |
| |
| if (d0) |
| { |
| /* MAP inbound security check */ |
| ip6_map_security_check (d0, ip40, ip60, &next0, &error0); |
| |
| if (PREDICT_TRUE (error0 == MAP_ERROR_NONE && |
| next0 == IP6_MAP_NEXT_IP4_LOOKUP)) |
| { |
| if (PREDICT_FALSE |
| (d0->mtu |
| && (clib_host_to_net_u16 (ip40->length) > d0->mtu))) |
| { |
| vnet_buffer (p0)->ip_frag.header_offset = 0; |
| vnet_buffer (p0)->ip_frag.flags = 0; |
| vnet_buffer (p0)->ip_frag.next_index = |
| IP4_FRAG_NEXT_IP4_LOOKUP; |
| vnet_buffer (p0)->ip_frag.mtu = d0->mtu; |
| next0 = IP6_MAP_NEXT_IP4_FRAGMENT; |
| } |
| else |
| { |
| next0 = |
| ip6_map_ip4_lookup_bypass (p0, |
| ip40) ? |
| IP6_MAP_NEXT_IP4_REWRITE : next0; |
| } |
| vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_RX, |
| thread_index, |
| map_domain_index0, 1, |
| clib_net_to_host_u16 |
| (ip40->length)); |
| } |
| } |
| if (d1) |
| { |
| /* MAP inbound security check */ |
| ip6_map_security_check (d1, ip41, ip61, &next1, &error1); |
| |
| if (PREDICT_TRUE (error1 == MAP_ERROR_NONE && |
| next1 == IP6_MAP_NEXT_IP4_LOOKUP)) |
| { |
| if (PREDICT_FALSE |
| (d1->mtu |
| && (clib_host_to_net_u16 (ip41->length) > d1->mtu))) |
| { |
| vnet_buffer (p1)->ip_frag.header_offset = 0; |
| vnet_buffer (p1)->ip_frag.flags = 0; |
| vnet_buffer (p1)->ip_frag.next_index = |
| IP4_FRAG_NEXT_IP4_LOOKUP; |
| vnet_buffer (p1)->ip_frag.mtu = d1->mtu; |
| next1 = IP6_MAP_NEXT_IP4_FRAGMENT; |
| } |
| else |
| { |
| next1 = |
| ip6_map_ip4_lookup_bypass (p1, |
| ip41) ? |
| IP6_MAP_NEXT_IP4_REWRITE : next1; |
| } |
| vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_RX, |
| thread_index, |
| map_domain_index1, 1, |
| clib_net_to_host_u16 |
| (ip41->length)); |
| } |
| } |
| |
| 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; |
| } |
| |
| if (error0 == MAP_ERROR_DECAP_SEC_CHECK && mm->icmp6_enabled) |
| { |
| /* Set ICMP parameters */ |
| vlib_buffer_advance (p0, -sizeof (ip6_header_t)); |
| icmp6_error_set_vnet_buffer (p0, ICMP6_destination_unreachable, |
| ICMP6_destination_unreachable_source_address_failed_policy, |
| 0); |
| next0 = IP6_MAP_NEXT_ICMP; |
| } |
| else |
| { |
| next0 = (error0 == MAP_ERROR_NONE) ? next0 : IP6_MAP_NEXT_DROP; |
| } |
| |
| if (error1 == MAP_ERROR_DECAP_SEC_CHECK && mm->icmp6_enabled) |
| { |
| /* Set ICMP parameters */ |
| vlib_buffer_advance (p1, -sizeof (ip6_header_t)); |
| icmp6_error_set_vnet_buffer (p1, ICMP6_destination_unreachable, |
| ICMP6_destination_unreachable_source_address_failed_policy, |
| 0); |
| next1 = IP6_MAP_NEXT_ICMP; |
| } |
| else |
| { |
| next1 = (error1 == MAP_ERROR_NONE) ? next1 : IP6_MAP_NEXT_DROP; |
| } |
| |
| /* Reset packet */ |
| if (next0 == IP6_MAP_NEXT_IP6_LOCAL) |
| vlib_buffer_advance (p0, -sizeof (ip6_header_t)); |
| if (next1 == IP6_MAP_NEXT_IP6_LOCAL) |
| vlib_buffer_advance (p1, -sizeof (ip6_header_t)); |
| |
| 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); |
| } |
| |
| /* Single loop */ |
| while (n_left_from > 0 && n_left_to_next > 0) |
| { |
| u32 pi0; |
| vlib_buffer_t *p0; |
| u8 error0 = MAP_ERROR_NONE; |
| map_domain_t *d0 = 0; |
| ip4_header_t *ip40; |
| ip6_header_t *ip60; |
| i32 port0 = 0; |
| u32 map_domain_index0 = ~0; |
| u32 next0 = IP6_MAP_NEXT_IP4_LOOKUP; |
| |
| 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); |
| vlib_buffer_advance (p0, sizeof (ip6_header_t)); |
| ip40 = vlib_buffer_get_current (p0); |
| |
| /* |
| * Encapsulated IPv4 packet |
| * - IPv4 fragmented -> Pass to virtual reassembly unless security check disabled |
| * - Lookup/Rewrite or Fragment node in case of packet > MTU |
| * Fragmented IPv6 packet |
| * ICMP IPv6 packet |
| * - Error -> Pass to ICMPv6/ICMPv4 relay |
| * - Info -> Pass to IPv6 local |
| * Anything else -> drop |
| */ |
| if (PREDICT_TRUE |
| (ip60->protocol == IP_PROTOCOL_IP_IN_IP |
| && clib_net_to_host_u16 (ip60->payload_length) > 20)) |
| { |
| d0 = |
| ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], |
| (ip4_address_t *) & ip40->src_address. |
| as_u32, &map_domain_index0, &error0); |
| } |
| else if (ip60->protocol == IP_PROTOCOL_ICMP6 && |
| clib_net_to_host_u16 (ip60->payload_length) > |
| sizeof (icmp46_header_t)) |
| { |
| icmp46_header_t *icmp = (void *) (ip60 + 1); |
| next0 = (icmp->type == ICMP6_echo_request |
| || icmp->type == |
| ICMP6_echo_reply) ? IP6_MAP_NEXT_IP6_LOCAL : |
| IP6_MAP_NEXT_IP6_ICMP_RELAY; |
| } |
| else if (ip60->protocol == IP_PROTOCOL_IPV6_FRAGMENTATION && |
| (((ip6_frag_hdr_t *) (ip60 + 1))->next_hdr == |
| IP_PROTOCOL_IP_IN_IP)) |
| { |
| next0 = IP6_MAP_NEXT_IP6_REASS; |
| } |
| else |
| { |
| error0 = MAP_ERROR_BAD_PROTOCOL; |
| } |
| |
| if (d0) |
| { |
| /* MAP inbound security check */ |
| ip6_map_security_check (d0, ip40, ip60, &next0, &error0); |
| |
| if (PREDICT_TRUE (error0 == MAP_ERROR_NONE && |
| next0 == IP6_MAP_NEXT_IP4_LOOKUP)) |
| { |
| if (PREDICT_FALSE |
| (d0->mtu |
| && (clib_host_to_net_u16 (ip40->length) > d0->mtu))) |
| { |
| vnet_buffer (p0)->ip_frag.header_offset = 0; |
| vnet_buffer (p0)->ip_frag.flags = 0; |
| vnet_buffer (p0)->ip_frag.next_index = |
| IP4_FRAG_NEXT_IP4_LOOKUP; |
| vnet_buffer (p0)->ip_frag.mtu = d0->mtu; |
| next0 = IP6_MAP_NEXT_IP4_FRAGMENT; |
| } |
| else |
| { |
| next0 = |
| ip6_map_ip4_lookup_bypass (p0, |
| ip40) ? |
| IP6_MAP_NEXT_IP4_REWRITE : next0; |
| } |
| vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_RX, |
| thread_index, |
| map_domain_index0, 1, |
| clib_net_to_host_u16 |
| (ip40->length)); |
| } |
| } |
| |
| 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 = (u16) port0; |
| } |
| |
| if (mm->icmp6_enabled && |
| (error0 == MAP_ERROR_DECAP_SEC_CHECK |
| || error0 == MAP_ERROR_NO_DOMAIN)) |
| { |
| /* Set ICMP parameters */ |
| vlib_buffer_advance (p0, -sizeof (ip6_header_t)); |
| icmp6_error_set_vnet_buffer (p0, ICMP6_destination_unreachable, |
| ICMP6_destination_unreachable_source_address_failed_policy, |
| 0); |
| next0 = IP6_MAP_NEXT_ICMP; |
| } |
| else |
| { |
| next0 = (error0 == MAP_ERROR_NONE) ? next0 : IP6_MAP_NEXT_DROP; |
| } |
| |
| /* Reset packet */ |
| if (next0 == IP6_MAP_NEXT_IP6_LOCAL) |
| vlib_buffer_advance (p0, -sizeof (ip6_header_t)); |
| |
| 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; |
| } |
| |
| |
| static_always_inline void |
| ip6_map_ip6_reass_prepare (vlib_main_t * vm, vlib_node_runtime_t * node, |
| map_ip6_reass_t * r, u32 ** fragments_ready, |
| u32 ** fragments_to_drop) |
| { |
| ip4_header_t *ip40; |
| ip6_header_t *ip60; |
| ip6_frag_hdr_t *frag0; |
| vlib_buffer_t *p0; |
| |
| if (!r->ip4_header.ip_version_and_header_length) |
| return; |
| |
| //The IP header is here, we need to check for packets |
| //that can be forwarded |
| int i; |
| for (i = 0; i < MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++) |
| { |
| if (r->fragments[i].pi == ~0 || |
| ((!r->fragments[i].next_data_len) |
| && (r->fragments[i].next_data_offset != (0xffff)))) |
| continue; |
| |
| p0 = vlib_get_buffer (vm, r->fragments[i].pi); |
| ip60 = vlib_buffer_get_current (p0); |
| frag0 = (ip6_frag_hdr_t *) (ip60 + 1); |
| ip40 = (ip4_header_t *) (frag0 + 1); |
| |
| if (ip6_frag_hdr_offset (frag0)) |
| { |
| //Not first fragment, add the IPv4 header |
| clib_memcpy (ip40, &r->ip4_header, 20); |
| } |
| |
| #ifdef MAP_IP6_REASS_COUNT_BYTES |
| r->forwarded += |
| clib_net_to_host_u16 (ip60->payload_length) - sizeof (*frag0); |
| #endif |
| |
| if (ip6_frag_hdr_more (frag0)) |
| { |
| //Not last fragment, we copy end of next |
| clib_memcpy (u8_ptr_add (ip60, p0->current_length), |
| r->fragments[i].next_data, 20); |
| p0->current_length += 20; |
| ip60->payload_length = u16_net_add (ip60->payload_length, 20); |
| } |
| |
| if (!ip4_is_fragment (ip40)) |
| { |
| ip40->fragment_id = frag_id_6to4 (frag0->identification); |
| ip40->flags_and_fragment_offset = |
| clib_host_to_net_u16 (ip6_frag_hdr_offset (frag0)); |
| } |
| else |
| { |
| ip40->flags_and_fragment_offset = |
| clib_host_to_net_u16 (ip4_get_fragment_offset (ip40) + |
| ip6_frag_hdr_offset (frag0)); |
| } |
| |
| if (ip6_frag_hdr_more (frag0)) |
| ip40->flags_and_fragment_offset |= |
| clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS); |
| |
| ip40->length = |
| clib_host_to_net_u16 (p0->current_length - sizeof (*ip60) - |
| sizeof (*frag0)); |
| ip40->checksum = ip4_header_checksum (ip40); |
| |
| if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) |
| { |
| map_ip6_map_ip6_reass_trace_t *tr = |
| vlib_add_trace (vm, node, p0, sizeof (*tr)); |
| tr->offset = ip4_get_fragment_offset (ip40); |
| tr->frag_len = clib_net_to_host_u16 (ip40->length) - sizeof (*ip40); |
| tr->out = 1; |
| } |
| |
| vec_add1 (*fragments_ready, r->fragments[i].pi); |
| r->fragments[i].pi = ~0; |
| r->fragments[i].next_data_len = 0; |
| r->fragments[i].next_data_offset = 0; |
| map_main.ip6_reass_buffered_counter--; |
| |
| //TODO: Best solution would be that ip6_map handles extension headers |
| // and ignores atomic fragment. But in the meantime, let's just copy the header. |
| |
| u8 protocol = frag0->next_hdr; |
| memmove (u8_ptr_add (ip40, -sizeof (*ip60)), ip60, sizeof (*ip60)); |
| ((ip6_header_t *) u8_ptr_add (ip40, -sizeof (*ip60)))->protocol = |
| protocol; |
| vlib_buffer_advance (p0, sizeof (*frag0)); |
| } |
| } |
| |
| void |
| map_ip6_drop_pi (u32 pi) |
| { |
| vlib_main_t *vm = vlib_get_main (); |
| vlib_node_runtime_t *n = |
| vlib_node_get_runtime (vm, ip6_map_ip6_reass_node.index); |
| vlib_set_next_frame_buffer (vm, n, IP6_MAP_IP6_REASS_NEXT_DROP, pi); |
| } |
| |
| void |
| map_ip4_drop_pi (u32 pi) |
| { |
| vlib_main_t *vm = vlib_get_main (); |
| vlib_node_runtime_t *n = |
| vlib_node_get_runtime (vm, ip6_map_ip4_reass_node.index); |
| vlib_set_next_frame_buffer (vm, n, IP6_MAP_IP4_REASS_NEXT_DROP, pi); |
| } |
| |
| /* |
| * ip6_reass |
| * TODO: We should count the number of successfully |
| * transmitted fragment bytes and compare that to the last fragment |
| * offset such that we can free the reassembly structure when all fragments |
| * have been forwarded. |
| */ |
| static uword |
| ip6_map_ip6_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, ip6_map_ip6_reass_node.index); |
| u32 *fragments_to_drop = NULL; |
| u32 *fragments_ready = NULL; |
| |
| from = vlib_frame_vector_args (frame); |
| n_left_from = frame->n_vectors; |
| next_index = node->cached_next_index; |
| while (n_left_from > 0) |
| { |
| vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| |
| /* Single loop */ |
| while (n_left_from > 0 && n_left_to_next > 0) |
| { |
| u32 pi0; |
| vlib_buffer_t *p0; |
| u8 error0 = MAP_ERROR_NONE; |
| ip6_header_t *ip60; |
| ip6_frag_hdr_t *frag0; |
| u16 offset; |
| u16 next_offset; |
| u16 frag_len; |
| |
| 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); |
| frag0 = (ip6_frag_hdr_t *) (ip60 + 1); |
| offset = |
| clib_host_to_net_u16 (frag0->fragment_offset_and_more) & (~7); |
| frag_len = |
| clib_net_to_host_u16 (ip60->payload_length) - sizeof (*frag0); |
| next_offset = |
| ip6_frag_hdr_more (frag0) ? (offset + frag_len) : (0xffff); |
| |
| //FIXME: Support other extension headers, maybe |
| |
| if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) |
| { |
| map_ip6_map_ip6_reass_trace_t *tr = |
| vlib_add_trace (vm, node, p0, sizeof (*tr)); |
| tr->offset = offset; |
| tr->frag_len = frag_len; |
| tr->out = 0; |
| } |
| |
| map_ip6_reass_lock (); |
| map_ip6_reass_t *r = |
| map_ip6_reass_get (&ip60->src_address, &ip60->dst_address, |
| frag0->identification, frag0->next_hdr, |
| &fragments_to_drop); |
| //FIXME: Use better error codes |
| if (PREDICT_FALSE (!r)) |
| { |
| // Could not create a caching entry |
| error0 = MAP_ERROR_FRAGMENT_MEMORY; |
| } |
| else if (PREDICT_FALSE ((frag_len <= 20 && |
| (ip6_frag_hdr_more (frag0) || (!offset))))) |
| { |
| //Very small fragment are restricted to the last one and |
| //can't be the first one |
| error0 = MAP_ERROR_FRAGMENT_MALFORMED; |
| } |
| else |
| if (map_ip6_reass_add_fragment |
| (r, pi0, offset, next_offset, (u8 *) (frag0 + 1), frag_len)) |
| { |
| map_ip6_reass_free (r, &fragments_to_drop); |
| error0 = MAP_ERROR_FRAGMENT_MEMORY; |
| } |
| else |
| { |
| #ifdef MAP_IP6_REASS_COUNT_BYTES |
| if (!ip6_frag_hdr_more (frag0)) |
| r->expected_total = offset + frag_len; |
| #endif |
| ip6_map_ip6_reass_prepare (vm, node, r, &fragments_ready, |
| &fragments_to_drop); |
| #ifdef MAP_IP6_REASS_COUNT_BYTES |
| if (r->forwarded >= r->expected_total) |
| map_ip6_reass_free (r, &fragments_to_drop); |
| #endif |
| } |
| map_ip6_reass_unlock (); |
| |
| if (error0 == MAP_ERROR_NONE) |
| { |
| if (frag_len > 20) |
| { |
| //Dequeue the packet |
| n_left_to_next++; |
| to_next--; |
| } |
| else |
| { |
| //All data from that packet was copied no need to keep it, but this is not an error |
| p0->error = error_node->errors[MAP_ERROR_NONE]; |
| vlib_validate_buffer_enqueue_x1 (vm, node, next_index, |
| to_next, n_left_to_next, |
| pi0, |
| IP6_MAP_IP6_REASS_NEXT_DROP); |
| } |
| } |
| else |
| { |
| p0->error = error_node->errors[error0]; |
| vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, |
| n_left_to_next, pi0, |
| IP6_MAP_IP6_REASS_NEXT_DROP); |
| } |
| } |
| vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| } |
| |
| map_send_all_to_node (vm, fragments_ready, node, |
| &error_node->errors[MAP_ERROR_NONE], |
| IP6_MAP_IP6_REASS_NEXT_IP6_MAP); |
| map_send_all_to_node (vm, fragments_to_drop, node, |
| &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED], |
| IP6_MAP_IP6_REASS_NEXT_DROP); |
| |
| vec_free (fragments_to_drop); |
| vec_free (fragments_ready); |
| return frame->n_vectors; |
| } |
| |
| /* |
| * ip6_ip4_virt_reass |
| */ |
| static uword |
| ip6_map_ip4_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, ip6_map_ip4_reass_node.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; |
| |
| from = vlib_frame_vector_args (frame); |
| n_left_from = frame->n_vectors; |
| next_index = node->cached_next_index; |
| while (n_left_from > 0) |
| { |
| vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| |
| /* Single loop */ |
| while (n_left_from > 0 && n_left_to_next > 0) |
| { |
| u32 pi0; |
| vlib_buffer_t *p0; |
| u8 error0 = MAP_ERROR_NONE; |
| map_domain_t *d0; |
| ip4_header_t *ip40; |
| ip6_header_t *ip60; |
| i32 port0 = 0; |
| u32 map_domain_index0 = ~0; |
| u32 next0 = IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP; |
| 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); |
| ip40 = vlib_buffer_get_current (p0); |
| ip60 = ((ip6_header_t *) ip40) - 1; |
| |
| d0 = |
| ip6_map_get_domain (vnet_buffer (p0)->ip.adj_index[VLIB_TX], |
| (ip4_address_t *) & ip40->src_address.as_u32, |
| &map_domain_index0, &error0); |
| |
| map_ip4_reass_lock (); |
| //This node only deals with fragmented ip4 |
| 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))) |
| { |
| // This is a fragment |
| 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, MAP_SENDER, p0->current_length)) < 0) |
| { |
| // Could not find port from first fragment. Stop reassembling. |
| error0 = MAP_ERROR_BAD_PROTOCOL; |
| port0 = 0; |
| map_ip4_reass_free (r, &fragments_to_drop); |
| } |
| else |
| { |
| // Found port. Remember it and loopback saved fragments |
| 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 (); |
| |
| if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) |
| error0 = |
| ip6_map_sec_check (d0, port0, ip40, |
| ip60) ? MAP_ERROR_NONE : |
| MAP_ERROR_DECAP_SEC_CHECK; |
| |
| if (PREDICT_FALSE |
| (d0->mtu && (clib_host_to_net_u16 (ip40->length) > d0->mtu) |
| && error0 == MAP_ERROR_NONE && !cached)) |
| { |
| vnet_buffer (p0)->ip_frag.header_offset = 0; |
| vnet_buffer (p0)->ip_frag.flags = 0; |
| vnet_buffer (p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP4_LOOKUP; |
| vnet_buffer (p0)->ip_frag.mtu = d0->mtu; |
| next0 = IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT; |
| } |
| |
| if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) |
| { |
| map_ip6_map_ip4_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_RX, |
| thread_index, |
| map_domain_index0, 1, |
| clib_net_to_host_u16 |
| (ip40->length)); |
| next0 = |
| (error0 == |
| MAP_ERROR_NONE) ? next0 : IP6_MAP_IP4_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], |
| IP6_MAP_IP4_REASS_NEXT_DROP); |
| |
| vec_free (fragments_to_drop); |
| vec_free (fragments_to_loopback); |
| return frame->n_vectors; |
| } |
| |
| /* |
| * ip6_icmp_relay |
| */ |
| static uword |
| ip6_map_icmp_relay (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, ip6_map_icmp_relay_node.index); |
| map_main_t *mm = &map_main; |
| u32 thread_index = vlib_get_thread_index (); |
| u16 *fragment_ids, *fid; |
| |
| from = vlib_frame_vector_args (frame); |
| n_left_from = frame->n_vectors; |
| next_index = node->cached_next_index; |
| |
| /* Get random fragment IDs for replies. */ |
| fid = fragment_ids = |
| clib_random_buffer_get_data (&vm->random_buffer, |
| n_left_from * sizeof (fragment_ids[0])); |
| |
| while (n_left_from > 0) |
| { |
| vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
| |
| /* Single loop */ |
| while (n_left_from > 0 && n_left_to_next > 0) |
| { |
| u32 pi0; |
| vlib_buffer_t *p0; |
| u8 error0 = MAP_ERROR_NONE; |
| ip6_header_t *ip60; |
| u32 next0 = IP6_ICMP_RELAY_NEXT_IP4_LOOKUP; |
| u32 mtu; |
| |
| 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); |
| u16 tlen = clib_net_to_host_u16 (ip60->payload_length); |
| |
| /* |
| * In: |
| * IPv6 header (40) |
| * ICMPv6 header (8) |
| * IPv6 header (40) |
| * Original IPv4 header / packet |
| * Out: |
| * New IPv4 header |
| * New ICMP header |
| * Original IPv4 header / packet |
| */ |
| |
| /* Need at least ICMP(8) + IPv6(40) + IPv4(20) + L4 header(8) */ |
| if (tlen < 76) |
| { |
| error0 = MAP_ERROR_ICMP_RELAY; |
| goto error; |
| } |
| |
| icmp46_header_t *icmp60 = (icmp46_header_t *) (ip60 + 1); |
| ip6_header_t *inner_ip60 = (ip6_header_t *) (icmp60 + 2); |
| |
| if (inner_ip60->protocol != IP_PROTOCOL_IP_IN_IP) |
| { |
| error0 = MAP_ERROR_ICMP_RELAY; |
| goto error; |
| } |
| |
| ip4_header_t *inner_ip40 = (ip4_header_t *) (inner_ip60 + 1); |
| vlib_buffer_advance (p0, 60); /* sizeof ( IPv6 + ICMP + IPv6 - IPv4 - ICMP ) */ |
| ip4_header_t *new_ip40 = vlib_buffer_get_current (p0); |
| icmp46_header_t *new_icmp40 = (icmp46_header_t *) (new_ip40 + 1); |
| |
| /* |
| * Relay according to RFC2473, section 8.3 |
| */ |
| switch (icmp60->type) |
| { |
| case ICMP6_destination_unreachable: |
| case ICMP6_time_exceeded: |
| case ICMP6_parameter_problem: |
| /* Type 3 - destination unreachable, Code 1 - host unreachable */ |
| new_icmp40->type = ICMP4_destination_unreachable; |
| new_icmp40->code = |
| ICMP4_destination_unreachable_destination_unreachable_host; |
| break; |
| |
| case ICMP6_packet_too_big: |
| /* Type 3 - destination unreachable, Code 4 - packet too big */ |
| /* Potential TODO: Adjust domain tunnel MTU based on the value received here */ |
| mtu = clib_net_to_host_u32 (*((u32 *) (icmp60 + 1))); |
| |
| /* Check DF flag */ |
| if (! |
| (inner_ip40->flags_and_fragment_offset & |
| clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT))) |
| { |
| error0 = MAP_ERROR_ICMP_RELAY; |
| goto error; |
| } |
| |
| new_icmp40->type = ICMP4_destination_unreachable; |
| new_icmp40->code = |
| ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set; |
| *((u32 *) (new_icmp40 + 1)) = |
| clib_host_to_net_u32 (mtu < 1280 ? 1280 : mtu); |
| break; |
| |
| default: |
| error0 = MAP_ERROR_ICMP_RELAY; |
| break; |
| } |
| |
| /* |
| * Ensure the total ICMP packet is no longer than 576 bytes (RFC1812) |
| */ |
| new_ip40->ip_version_and_header_length = 0x45; |
| new_ip40->tos = 0; |
| u16 nlen = (tlen - 20) > 576 ? 576 : tlen - 20; |
| new_ip40->length = clib_host_to_net_u16 (nlen); |
| new_ip40->fragment_id = fid[0]; |
| fid++; |
| new_ip40->ttl = 64; |
| new_ip40->protocol = IP_PROTOCOL_ICMP; |
| new_ip40->src_address = mm->icmp4_src_address; |
| new_ip40->dst_address = inner_ip40->src_address; |
| new_ip40->checksum = ip4_header_checksum (new_ip40); |
| |
| new_icmp40->checksum = 0; |
| ip_csum_t sum = ip_incremental_checksum (0, new_icmp40, nlen - 20); |
| new_icmp40->checksum = ~ip_csum_fold (sum); |
| |
| vlib_increment_simple_counter (&mm->icmp_relayed, thread_index, 0, |
| 1); |
| |
| error: |
| 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 = 0; |
| tr->port = 0; |
| } |
| |
| next0 = |
| (error0 == MAP_ERROR_NONE) ? next0 : IP6_ICMP_RELAY_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); |
| } |
| vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
| } |
| |
| return frame->n_vectors; |
| |
| } |
| |
| static char *map_error_strings[] = { |
| #define _(sym,string) string, |
| foreach_map_error |
| #undef _ |
| }; |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE(ip6_map_node) = { |
| .function = ip6_map, |
| .name = "ip6-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 = IP6_MAP_N_NEXT, |
| .next_nodes = { |
| [IP6_MAP_NEXT_IP4_LOOKUP] = "ip4-lookup", |
| #ifdef MAP_SKIP_IP6_LOOKUP |
| [IP6_MAP_NEXT_IP4_REWRITE] = "ip4-load-balance", |
| #endif |
| [IP6_MAP_NEXT_IP6_REASS] = "ip6-map-ip6-reass", |
| [IP6_MAP_NEXT_IP4_REASS] = "ip6-map-ip4-reass", |
| [IP6_MAP_NEXT_IP4_FRAGMENT] = "ip4-frag", |
| [IP6_MAP_NEXT_IP6_ICMP_RELAY] = "ip6-map-icmp-relay", |
| [IP6_MAP_NEXT_IP6_LOCAL] = "ip6-local", |
| [IP6_MAP_NEXT_DROP] = "error-drop", |
| [IP6_MAP_NEXT_ICMP] = "ip6-icmp-error", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE(ip6_map_ip6_reass_node) = { |
| .function = ip6_map_ip6_reass, |
| .name = "ip6-map-ip6-reass", |
| .vector_size = sizeof(u32), |
| .format_trace = format_ip6_map_ip6_reass_trace, |
| .type = VLIB_NODE_TYPE_INTERNAL, |
| .n_errors = MAP_N_ERROR, |
| .error_strings = map_error_strings, |
| .n_next_nodes = IP6_MAP_IP6_REASS_N_NEXT, |
| .next_nodes = { |
| [IP6_MAP_IP6_REASS_NEXT_IP6_MAP] = "ip6-map", |
| [IP6_MAP_IP6_REASS_NEXT_DROP] = "error-drop", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE(ip6_map_ip4_reass_node) = { |
| .function = ip6_map_ip4_reass, |
| .name = "ip6-map-ip4-reass", |
| .vector_size = sizeof(u32), |
| .format_trace = format_ip6_map_ip4_reass_trace, |
| .type = VLIB_NODE_TYPE_INTERNAL, |
| .n_errors = MAP_N_ERROR, |
| .error_strings = map_error_strings, |
| .n_next_nodes = IP6_MAP_IP4_REASS_N_NEXT, |
| .next_nodes = { |
| [IP6_MAP_IP4_REASS_NEXT_IP4_LOOKUP] = "ip4-lookup", |
| [IP6_MAP_IP4_REASS_NEXT_IP4_FRAGMENT] = "ip4-frag", |
| [IP6_MAP_IP4_REASS_NEXT_DROP] = "error-drop", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* *INDENT-OFF* */ |
| VLIB_REGISTER_NODE(ip6_map_icmp_relay_node, static) = { |
| .function = ip6_map_icmp_relay, |
| .name = "ip6-map-icmp-relay", |
| .vector_size = sizeof(u32), |
| .format_trace = format_map_trace, //FIXME |
| .type = VLIB_NODE_TYPE_INTERNAL, |
| .n_errors = MAP_N_ERROR, |
| .error_strings = map_error_strings, |
| .n_next_nodes = IP6_ICMP_RELAY_N_NEXT, |
| .next_nodes = { |
| [IP6_ICMP_RELAY_NEXT_IP4_LOOKUP] = "ip4-lookup", |
| [IP6_ICMP_RELAY_NEXT_DROP] = "error-drop", |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |