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authorHongjun Ni <hongjun.ni@intel.com>2018-02-06 23:00:22 +0800
committerDamjan Marion <dmarion.lists@gmail.com>2018-05-18 07:45:31 +0000
commitd92a0b553fd2872b4fcda25994aaa8852d254824 (patch)
tree5e73673341ab952008f5ecb175ca97139ecdf356 /src/plugins/kubeproxy/kp_node.c
parentafe56de947822bb981bd30242f4e3c2c469f9ecc (diff)
Rework kube-proxy into LB plugin
Add support of NAT66 Change-Id: Ie6aa79078a3835f989829b9a597c448dfd2f9ea3 Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
Diffstat (limited to 'src/plugins/kubeproxy/kp_node.c')
-rw-r--r--src/plugins/kubeproxy/kp_node.c839
1 files changed, 0 insertions, 839 deletions
diff --git a/src/plugins/kubeproxy/kp_node.c b/src/plugins/kubeproxy/kp_node.c
deleted file mode 100644
index 5cee6971e35..00000000000
--- a/src/plugins/kubeproxy/kp_node.c
+++ /dev/null
@@ -1,839 +0,0 @@
-/*
- * Copyright (c) 2016 Intel 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 anated to in writing, software
- * distributed under the License is distributed on an "POD IS" BPODIS,
- * 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/fib/ip4_fib.h>
-
-#include <kubeproxy/kp.h>
-#include <kubeproxy/kphash.h>
-
-#define foreach_kp_error \
- _(NONE, "no error") \
- _(PROTO_NOT_SUPPORTED, "protocol not supported")
-
-typedef enum {
-#define _(sym,str) KP_ERROR_##sym,
- foreach_kp_error
-#undef _
- KP_N_ERROR,
-} kp_error_t;
-
-static char *kp_error_strings[] = {
-#define _(sym,string) string,
- foreach_kp_error
-#undef _
-};
-
-typedef struct {
- u32 vip_index;
- u32 pod_index;
-} kp_trace_t;
-
-typedef struct {
- u32 vip_index;
- u32 node_port;
-} kp_nodeport_trace_t;
-
-typedef struct {
- u32 rx_sw_if_index;
- u32 next_index;
-} kp_nat_trace_t;
-
-u8 *
-format_kp_trace (u8 * s, va_list * args)
-{
- kp_main_t *kpm = &kp_main;
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- kp_trace_t *t = va_arg (*args, kp_trace_t *);
- if (pool_is_free_index(kpm->vips, t->vip_index)) {
- s = format(s, "kp vip[%d]: This VIP was freed since capture\n");
- } else {
- s = format(s, "kp vip[%d]: %U\n", t->vip_index, format_kp_vip, &kpm->vips[t->vip_index]);
- }
- if (pool_is_free_index(kpm->pods, t->pod_index)) {
- s = format(s, " kp pod[%d]: This POD was freed since capture");
- } else {
- s = format(s, " kp pod[%d]: %U", t->pod_index, format_kp_pod, &kpm->pods[t->pod_index]);
- }
- return s;
-}
-
-u8 *
-format_kp_nat_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 *);
- kp_nat_trace_t *t = va_arg (*args, kp_nat_trace_t *);
-
- s = format(s, "kp nat: rx_sw_if_index = %d, next_index = %d",
- t->rx_sw_if_index, t->next_index);
-
- return s;
-}
-
-kp_hash_t *kp_get_sticky_table(u32 thread_index)
-{
- kp_main_t *kpm = &kp_main;
- kp_hash_t *sticky_ht = kpm->per_cpu[thread_index].sticky_ht;
- //Check if size changed
- if (PREDICT_FALSE(sticky_ht && (kpm->per_cpu_sticky_buckets != kp_hash_nbuckets(sticky_ht))))
- {
- //Dereference everything in there
- kp_hash_bucket_t *b;
- u32 i;
- kp_hash_foreach_entry(sticky_ht, b, i) {
- vlib_refcount_add(&kpm->pod_refcount, thread_index, b->value[i], -1);
- vlib_refcount_add(&kpm->pod_refcount, thread_index, 0, 1);
- }
-
- kp_hash_free(sticky_ht);
- sticky_ht = NULL;
- }
-
- //Create if necessary
- if (PREDICT_FALSE(sticky_ht == NULL)) {
- kpm->per_cpu[thread_index].sticky_ht = kp_hash_alloc(kpm->per_cpu_sticky_buckets, kpm->flow_timeout);
- sticky_ht = kpm->per_cpu[thread_index].sticky_ht;
- clib_warning("Regenerated sticky table %p", sticky_ht);
- }
-
- ASSERT(sticky_ht);
-
- //Update timeout
- sticky_ht->timeout = kpm->flow_timeout;
- return sticky_ht;
-}
-
-u64
-kp_node_get_other_ports4(ip4_header_t *ip40)
-{
- return 0;
-}
-
-u64
-kp_node_get_other_ports6(ip6_header_t *ip60)
-{
- return 0;
-}
-
-static_always_inline u32
-kp_node_get_hash(vlib_buffer_t *p, u8 is_input_v4)
-{
- u32 hash;
- if (is_input_v4)
- {
- ip4_header_t *ip40;
- u64 ports;
- ip40 = vlib_buffer_get_current (p);
- if (PREDICT_TRUE (ip40->protocol == IP_PROTOCOL_TCP ||
- ip40->protocol == IP_PROTOCOL_UDP))
- ports = ((u64)((udp_header_t *)(ip40 + 1))->src_port << 16) |
- ((u64)((udp_header_t *)(ip40 + 1))->dst_port);
- else
- ports = kp_node_get_other_ports4(ip40);
-
- hash = kp_hash_hash(*((u64 *)&ip40->address_pair), ports,
- 0, 0, 0);
- }
- else
- {
- ip6_header_t *ip60;
- ip60 = vlib_buffer_get_current (p);
- u64 ports;
- if (PREDICT_TRUE (ip60->protocol == IP_PROTOCOL_TCP ||
- ip60->protocol == IP_PROTOCOL_UDP))
- ports = ((u64)((udp_header_t *)(ip60 + 1))->src_port << 16) |
- ((u64)((udp_header_t *)(ip60 + 1))->dst_port);
- else
- ports = kp_node_get_other_ports6(ip60);
-
- hash = kp_hash_hash(ip60->src_address.as_u64[0],
- ip60->src_address.as_u64[1],
- ip60->dst_address.as_u64[0],
- ip60->dst_address.as_u64[1],
- ports);
- }
- return hash;
-}
-
-static_always_inline uword
-kp_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame,
- u8 is_input_v4, //Compile-time parameter stating that is input is v4 (or v6)
- u8 is_nat_v4) //Compile-time parameter stating that is NAT is v4 (or v6)
-{
- kp_main_t *kpm = &kp_main;
- u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
- u32 thread_index = vlib_get_thread_index();
- u32 kp_time = kp_hash_time_now(vm);
-
- kp_hash_t *sticky_ht = kp_get_sticky_table(thread_index);
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- u32 nexthash0 = 0;
- if (PREDICT_TRUE(n_left_from > 0))
- nexthash0 = kp_node_get_hash(vlib_get_buffer (vm, from[0]), is_input_v4);
-
- 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;
- kp_vip_t *vip0;
- u32 podindex0;
- u32 available_index0;
- u8 counter = 0;
- u32 hash0 = nexthash0;
-
- if (PREDICT_TRUE(n_left_from > 1))
- {
- vlib_buffer_t *p1 = vlib_get_buffer (vm, from[1]);
- //Compute next hash and prefetch bucket
- nexthash0 = kp_node_get_hash(p1, is_input_v4);
- kp_hash_prefetch_bucket(sticky_ht, nexthash0);
- //Prefetch for encap, next
- CLIB_PREFETCH (vlib_buffer_get_current(p1) - 64, 64, STORE);
- }
-
- if (PREDICT_TRUE(n_left_from > 2))
- {
- vlib_buffer_t *p2;
- p2 = vlib_get_buffer(vm, from[2]);
- /* prefetch packet header and data */
- vlib_prefetch_buffer_header(p2, STORE);
- CLIB_PREFETCH (vlib_buffer_get_current(p2), 64, STORE);
- }
-
- 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);
- vip0 = pool_elt_at_index (kpm->vips,
- vnet_buffer (p0)->ip.adj_index[VLIB_TX]);
-
- kp_hash_get(sticky_ht, hash0, vnet_buffer (p0)->ip.adj_index[VLIB_TX],
- kp_time, &available_index0, &podindex0);
-
- if (PREDICT_TRUE(podindex0 != ~0))
- {
- //Found an existing entry
- counter = KP_VIP_COUNTER_NEXT_PACKET;
- }
- else if (PREDICT_TRUE(available_index0 != ~0))
- {
- //There is an available slot for a new flow
- podindex0 = vip0->new_flow_table[hash0 & vip0->new_flow_table_mask].pod_index;
- counter = KP_VIP_COUNTER_FIRST_PACKET;
- counter = (podindex0 == 0)?KP_VIP_COUNTER_NO_SERVER:counter;
-
- //Dereference previously used
- vlib_refcount_add(&kpm->pod_refcount, thread_index,
- kp_hash_available_value(sticky_ht, hash0, available_index0), -1);
- vlib_refcount_add(&kpm->pod_refcount, thread_index,
- podindex0, 1);
-
- //Add sticky entry
- //Note that when there is no POD configured, an entry is configured anyway.
- //But no configured POD is not something that should happen
- kp_hash_put(sticky_ht, hash0, podindex0,
- vnet_buffer (p0)->ip.adj_index[VLIB_TX],
- available_index0, kp_time);
- }
- else
- {
- //Could not store new entry in the table
- podindex0 = vip0->new_flow_table[hash0 & vip0->new_flow_table_mask].pod_index;
- counter = KP_VIP_COUNTER_UNTRACKED_PACKET;
- }
-
- vlib_increment_simple_counter(&kpm->vip_counters[counter],
- thread_index,
- vnet_buffer (p0)->ip.adj_index[VLIB_TX],
- 1);
- //Now let's do NAT
- {
- udp_header_t *port0;
-
- if ( (is_input_v4==1) && (is_nat_v4==1) ) /* NAT44 */
- {
- ip4_header_t *ip40;
- ip40 = vlib_buffer_get_current(p0);
- port0 = (udp_header_t *)(ip40 + 1);
- ip40->dst_address = kpm->pods[podindex0].address.ip4;
- ip40->checksum = ip4_header_checksum (ip40);
- }
- else if ( (is_input_v4==1) && (is_nat_v4==0) ) /* NAT46 */
- {
- /* TBD */
- u16 len0 = 0;
- ip4_header_t *ip40;
- ip40 = vlib_buffer_get_current(p0);
- len0 = clib_net_to_host_u16(ip40->length);
-
- vlib_buffer_advance(p0, (-sizeof(ip6_header_t)+sizeof(ip4_header_t)) );
- ip6_header_t *ip60;
- ip60 = vlib_buffer_get_current(p0);
- port0 = (udp_header_t *)(ip60 + 1);
- ip60->payload_length = len0 - sizeof(ip4_header_t);
- ip60->dst_address = kpm->pods[podindex0].address.ip6;
- }
- else if ( (is_input_v4==0) && (is_nat_v4==0) ) /* NAT66 */
- {
- ip6_header_t *ip60;
- ip60 = vlib_buffer_get_current(p0);
- port0 = (udp_header_t *)(ip60 + 1);
- ip60->dst_address = kpm->pods[podindex0].address.ip6;
- }
- else /* NAT64 */
- {
- /* TBD */
- u16 len0 = 0;
- ip6_header_t *ip60;
- ip60 = vlib_buffer_get_current(p0);
- len0 = clib_net_to_host_u16(ip60->payload_length);
-
- vlib_buffer_advance(p0, (sizeof(ip6_header_t)-sizeof(ip4_header_t)) );
- ip4_header_t *ip40;
- ip40 = vlib_buffer_get_current(p0);
- port0 = (udp_header_t *)(ip40 + 1);
- ip40->length = len0 + sizeof(ip4_header_t);
- ip40->dst_address = kpm->pods[podindex0].address.ip4;
- ip40->checksum = ip4_header_checksum (ip40);
- }
-
- port0->dst_port = vip0->target_port;
- }
-
- if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- kp_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr));
- tr->pod_index = podindex0;
- tr->vip_index = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
- }
-
- //Enqueue to next
- //Note that this is going to error if podindex0 == 0
- vnet_buffer (p0)->ip.adj_index[VLIB_TX] = kpm->pods[podindex0].dpo.dpoi_index;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, pi0,
- kpm->pods[podindex0].dpo.dpoi_next_node);
- }
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- return frame->n_vectors;
-}
-
-u8 *
-format_nodeport_kp_trace (u8 * s, va_list * args)
-{
- kp_main_t *kpm = &kp_main;
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- kp_nodeport_trace_t *t = va_arg (*args, kp_nodeport_trace_t *);
- if (pool_is_free_index(kpm->vips, t->vip_index)) {
- s = format(s, "kp vip[%d]: This VIP was freed since capture\n");
- } else {
- s = format(s, "kp vip[%d]: %U\n", t->vip_index, format_kp_vip, &kpm->vips[t->vip_index]);
- }
-
- s = format(s, " kp node_port: %d", t->node_port);
-
- return s;
-}
-static uword
-kp_nodeport_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame,
- u8 is_input_v4)
-{
- kp_main_t *kpm = &kp_main;
- u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
-
- 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);
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 pi0;
- vlib_buffer_t *p0;
- udp_header_t * udp_0;
- uword * entry0;
- u32 next0 = KP_NODEPORT_NEXT_DROP;
-
-
- if (PREDICT_TRUE(n_left_from > 1))
- {
- vlib_buffer_t *p1 = vlib_get_buffer (vm, from[1]);
- //Prefetch for encap, next
- CLIB_PREFETCH (vlib_buffer_get_current(p1) - 64, 64, STORE);
- }
-
- if (PREDICT_TRUE(n_left_from > 2))
- {
- vlib_buffer_t *p2;
- p2 = vlib_get_buffer(vm, from[2]);
- /* prefetch packet header and data */
- vlib_prefetch_buffer_header(p2, STORE);
- CLIB_PREFETCH (vlib_buffer_get_current(p2), 64, STORE);
- }
-
- 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);
-
- if (is_input_v4==1)
- {
- ip4_header_t *ip40;
- vlib_buffer_advance
- (p0, -(word)(sizeof(udp_header_t)+sizeof(ip4_header_t)));
- ip40 = vlib_buffer_get_current(p0);
- udp_0 = (udp_header_t *)(ip40 + 1);
- }
- else
- {
- ip6_header_t *ip60;
- vlib_buffer_advance
- (p0, -(word)(sizeof(udp_header_t)+sizeof(ip6_header_t)));
- ip60 = vlib_buffer_get_current(p0);
- udp_0 = (udp_header_t *)(ip60 + 1);
- }
-
- entry0 = hash_get_mem(kpm->nodeport_by_key, &(udp_0->dst_port));
-
-
- if (is_input_v4==1)
- {
- next0 = KP_NODEPORT_NEXT_IP4_NAT4;
- }
- else
- {
- next0 = KP_NODEPORT_NEXT_IP6_NAT6;
- }
-
- if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
- {
- kp_nodeport_trace_t *tr = vlib_add_trace (vm, node,
- p0, sizeof (*tr));
- tr->vip_index = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
- tr->node_port = (u32)clib_net_to_host_u16(udp_0->dst_port);
- }
-
- //Enqueue to next
- vnet_buffer(p0)->ip.adj_index[VLIB_TX] = entry0[0];
- 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;
-
-}
-
-/**
- * @brief Match NAT4 static mapping.
- *
- * @param sm NAT main.
- * @param match Address and port to match.
- * @param mapping External or local address and port of the matched mapping.
- *
- * @returns 0 if match found otherwise 1.
- */
-int kp_nat4_mapping_match (kp_main_t *kpm,
- kp_snat4_key_t match,
- kp_snat4_key_t * mapping)
-{
- clib_bihash_kv_8_8_t kv, value;
- kp_snat_mapping_t *m;
- kp_snat4_key_t m_key;
- clib_bihash_8_8_t *mapping_hash = &kpm->mapping_by_pod;
-
- m_key.addr = match.addr;
- m_key.port = match.port;
- m_key.protocol = match.protocol;
- m_key.fib_index = match.fib_index;
-
- kv.key = m_key.as_u64;
-
- if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- {
- return 1;
- }
-
- m = pool_elt_at_index (kpm->snat_mappings, value.value);
-
- if (m->svr_type == KP_SVR_TYPE_VIP_PORT)
- {
- mapping->addr = m->vip.ip4;
- mapping->port = clib_host_to_net_u16 (m->port);
- mapping->fib_index = m->fib_index;
- mapping->protocol = match.protocol;
- }
- else if (m->svr_type == KP_SVR_TYPE_NODEIP_PORT)
- {
- mapping->addr = m->node_ip.ip4;
- mapping->port = clib_host_to_net_u16 (m->node_port);
- mapping->fib_index = m->fib_index;
- mapping->protocol = match.protocol;
- }
-
- return 0;
-}
-
-static uword
-kp_nat4_in2out_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- u32 n_left_from, * from, * to_next;
- kp_nat4_in2out_next_t next_index;
- u32 pkts_processed = 0;
- kp_main_t *kpm = &kp_main;
- u32 stats_node_index;
-
- stats_node_index = kp_nat4_in2out_node.index;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- 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 > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 sw_if_index0;
- ip4_header_t * ip0;
- ip_csum_t sum0;
- u32 new_addr0, old_addr0;
- u16 old_port0, new_port0;
- udp_header_t * udp0;
- tcp_header_t * tcp0;
- kp_snat4_key_t key0, sm0;
- u32 proto0;
- u32 rx_fib_index0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- next0 = KP_NAT4_IN2OUT_NEXT_LOOKUP;
-
- ip0 = vlib_buffer_get_current (b0);
- udp0 = ip4_next_header (ip0);
- tcp0 = (tcp_header_t *) udp0;
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index(sw_if_index0);
-
- proto0 = kp_ip_proto_to_nat_proto (ip0->protocol);
-
- if (PREDICT_FALSE (proto0 == ~0))
- goto trace0;
-
- key0.addr = ip0->src_address;
- key0.protocol = proto0;
- key0.port = udp0->src_port;
- key0.fib_index = rx_fib_index0;
-
- if (kp_nat4_mapping_match (kpm, key0, &sm0))
- {
- next0= KP_NAT4_IN2OUT_NEXT_DROP;
- goto trace0;
- }
-
- new_addr0 = sm0.addr.as_u32;
- new_port0 = sm0.port;
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = sm0.fib_index;
- old_addr0 = ip0->src_address.as_u32;
- ip0->src_address.as_u32 = new_addr0;
-
- sum0 = ip0->checksum;
- sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
- ip4_header_t,
- src_address /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- if (PREDICT_FALSE(new_port0 != udp0->dst_port))
- {
- if (PREDICT_TRUE(proto0 == KP_NAT_PROTOCOL_TCP))
- {
- old_port0 = tcp0->src_port;
- tcp0->src_port = new_port0;
-
- sum0 = tcp0->checksum;
- sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
- ip4_header_t,
- dst_address /* changed member */);
- sum0 = ip_csum_update (sum0, old_port0, new_port0,
- ip4_header_t /* cheat */,
- length /* changed member */);
- tcp0->checksum = ip_csum_fold(sum0);
- }
- else
- {
- old_port0 = udp0->src_port;
- udp0->src_port = new_port0;
- udp0->checksum = 0;
- }
- }
- else
- {
- if (PREDICT_TRUE(proto0 == KP_NAT_PROTOCOL_TCP))
- {
- sum0 = tcp0->checksum;
- sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
- ip4_header_t,
- dst_address /* changed member */);
- tcp0->checksum = ip_csum_fold(sum0);
- }
- }
-
- trace0:
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- kp_nat_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->rx_sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
-
- pkts_processed += next0 != KP_NAT4_IN2OUT_NEXT_DROP;
-
- /* verify speculative enqueue, maybe switch current next frame */
- 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);
- }
-
- vlib_node_increment_counter (vm, stats_node_index,
- KP_NAT_IN2OUT_ERROR_IN2OUT_PACKETS,
- pkts_processed);
- return frame->n_vectors;
-}
-
-static uword
-kp6_nat6_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return kp_node_fn(vm, node, frame, 0, 0);
-}
-
-static uword
-kp6_nat4_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return kp_node_fn(vm, node, frame, 0, 1);
-}
-
-static uword
-kp4_nat6_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return kp_node_fn(vm, node, frame, 1, 0);
-}
-
-static uword
-kp4_nat4_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return kp_node_fn(vm, node, frame, 1, 1);
-}
-
-VLIB_REGISTER_NODE (kp6_nat6_node) =
-{
- .function = kp6_nat6_node_fn,
- .name = "kp6-nat6",
- .vector_size = sizeof (u32),
- .format_trace = format_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_N_NEXT,
- .next_nodes =
- {
- [KP_NEXT_DROP] = "error-drop"
- },
-};
-
-VLIB_REGISTER_NODE (kp6_nat4_node) =
-{
- .function = kp6_nat4_node_fn,
- .name = "kp6-nat4",
- .vector_size = sizeof (u32),
- .format_trace = format_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_N_NEXT,
- .next_nodes =
- {
- [KP_NEXT_DROP] = "error-drop"
- },
-};
-
-VLIB_REGISTER_NODE (kp4_nat6_node) =
-{
- .function = kp4_nat6_node_fn,
- .name = "kp4-nat6",
- .vector_size = sizeof (u32),
- .format_trace = format_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_N_NEXT,
- .next_nodes =
- {
- [KP_NEXT_DROP] = "error-drop"
- },
-};
-
-VLIB_REGISTER_NODE (kp4_nat4_node) =
-{
- .function = kp4_nat4_node_fn,
- .name = "kp4-nat4",
- .vector_size = sizeof (u32),
- .format_trace = format_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_N_NEXT,
- .next_nodes =
- {
- [KP_NEXT_DROP] = "error-drop"
- },
-};
-
-static uword
-kp4_nodeport_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return kp_nodeport_node_fn(vm, node, frame, 1);
-}
-
-static uword
-kp6_nodeport_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return kp_nodeport_node_fn(vm, node, frame, 0);
-}
-
-VLIB_REGISTER_NODE (kp4_nodeport_node) =
-{
- .function = kp4_nodeport_node_fn,
- .name = "kp4-nodeport",
- .vector_size = sizeof (u32),
- .format_trace = format_nodeport_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_NODEPORT_N_NEXT,
- .next_nodes =
- {
- [KP_NODEPORT_NEXT_IP4_NAT4] = "kp4-nat4",
- [KP_NODEPORT_NEXT_IP4_NAT6] = "kp4-nat6",
- [KP_NODEPORT_NEXT_IP6_NAT4] = "kp6-nat4",
- [KP_NODEPORT_NEXT_IP6_NAT6] = "kp6-nat6",
- [KP_NODEPORT_NEXT_DROP] = "error-drop",
- },
-};
-
-VLIB_REGISTER_NODE (kp6_nodeport_node) =
-{
- .function = kp6_nodeport_node_fn,
- .name = "kp6-nodeport",
- .vector_size = sizeof (u32),
- .format_trace = format_nodeport_kp_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_NODEPORT_N_NEXT,
- .next_nodes =
- {
- [KP_NODEPORT_NEXT_IP4_NAT4] = "kp4-nat4",
- [KP_NODEPORT_NEXT_IP4_NAT6] = "kp4-nat6",
- [KP_NODEPORT_NEXT_IP6_NAT4] = "kp6-nat4",
- [KP_NODEPORT_NEXT_IP6_NAT6] = "kp6-nat6",
- [KP_NODEPORT_NEXT_DROP] = "error-drop",
- },
-};
-
-VNET_FEATURE_INIT (kp_nat4_in2out_node_fn, static) =
-{
- .arc_name = "ip4-unicast",
- .node_name = "kp-nat4-in2out",
- .runs_before = VNET_FEATURES ("ip4-lookup"),
-};
-
-VLIB_REGISTER_NODE (kp_nat4_in2out_node) =
-{
- .function = kp_nat4_in2out_node_fn,
- .name = "kp-nat4-in2out",
- .vector_size = sizeof (u32),
- .format_trace = format_kp_nat_trace,
-
- .n_errors = KP_N_ERROR,
- .error_strings = kp_error_strings,
-
- .n_next_nodes = KP_NAT4_IN2OUT_N_NEXT,
- .next_nodes =
- {
- [KP_NAT4_IN2OUT_NEXT_DROP] = "error-drop",
- [KP_NAT4_IN2OUT_NEXT_LOOKUP] = "ip4-lookup",
- },
-};