--- /dev/null
+/*
+ * 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 <vnet/ip/ip_frag.h>
+#include <vnet/ip/ip4_to_ip6.h>
+#include <vnet/ip/ip6_to_ip4.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_get_port (ip4, 1);
+ 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, 1)) == 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:
+ */
Code Review / vpp.git / blobdiff