- snat_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 >= 4 && n_left_to_next >= 2)
- {
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- u32 sw_if_index0, sw_if_index1;
- ip4_header_t * ip0, * ip1;
- ip_csum_t sum0, sum1;
- u32 new_addr0, old_addr0, new_addr1, old_addr1;
- u16 old_port0, new_port0, old_port1, new_port1;
- udp_header_t * udp0, * udp1;
- tcp_header_t * tcp0, * tcp1;
- icmp46_header_t * icmp0, * icmp1;
- snat_session_key_t key0, key1;
- u32 rx_fib_index0, rx_fib_index1;
- u32 proto0, proto1;
- snat_session_t * s0 = 0, * s1 = 0;
- clib_bihash_kv_8_8_t kv0, value0, kv1, value1;
- u32 iph_offset0 = 0, iph_offset1 = 0;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
- }
-
- /* speculatively enqueue b0 and b1 to the current next frame */
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- from += 2;
- to_next += 2;
- n_left_from -= 2;
- n_left_to_next -= 2;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
-
- if (is_output_feature)
- iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
-
- ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
- iph_offset0);
-
- udp0 = ip4_next_header (ip0);
- tcp0 = (tcp_header_t *) udp0;
- icmp0 = (icmp46_header_t *) udp0;
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
- sw_if_index0);
-
- next0 = next1 = SNAT_IN2OUT_NEXT_LOOKUP;
-
- if (PREDICT_FALSE(ip0->ttl == 1))
- {
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
- ICMP4_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next0 = SNAT_IN2OUT_NEXT_ICMP_ERROR;
- goto trace00;
- }
-
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
-
- /* Next configured feature, probably ip4-lookup */
- if (is_slow_path)
- {
- if (PREDICT_FALSE (proto0 == ~0))
- {
- snat_in2out_unknown_proto (sm, b0, ip0, rx_fib_index0,
- thread_index, now, vm);
- goto trace00;
- }
-
- if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
- {
- next0 = icmp_in2out_slow_path
- (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0,
- node, next0, now, thread_index, &s0);
- goto trace00;
- }
- }
- else
- {
- if (PREDICT_FALSE (proto0 == ~0 || proto0 == SNAT_PROTOCOL_ICMP))
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace00;
- }
- }
-
- key0.addr = ip0->src_address;
- key0.port = udp0->src_port;
- key0.protocol = proto0;
- key0.fib_index = rx_fib_index0;
-
- kv0.key = key0.as_u64;
-
- if (PREDICT_FALSE (clib_bihash_search_8_8 (&sm->in2out, &kv0, &value0) != 0))
- {
- if (is_slow_path)
- {
- if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0,
- ip0, proto0, rx_fib_index0)) && !is_output_feature)
- goto trace00;
-
- next0 = slow_path (sm, b0, ip0, rx_fib_index0, &key0,
- &s0, node, next0, thread_index);
- if (PREDICT_FALSE (next0 == SNAT_IN2OUT_NEXT_DROP))
- goto trace00;
- }
- else
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace00;
- }
- }
- else
- {
- if (PREDICT_FALSE (value0.value == ~0ULL))
- {
- if (is_slow_path)
- {
- snat_in2out_lb(sm, b0, ip0, rx_fib_index0, thread_index,
- now, vm);
- goto trace00;
- }
- else
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace00;
- }
- }
- else
- {
- s0 = pool_elt_at_index (
- sm->per_thread_data[thread_index].sessions,
- value0.value);
- }
- }
-
- old_addr0 = ip0->src_address.as_u32;
- ip0->src_address = s0->out2in.addr;
- new_addr0 = ip0->src_address.as_u32;
- if (!is_output_feature)
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index;
-
- 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_TRUE(proto0 == SNAT_PROTOCOL_TCP))
- {
- old_port0 = tcp0->src_port;
- tcp0->src_port = s0->out2in.port;
- new_port0 = tcp0->src_port;
-
- 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 = s0->out2in.port;
- udp0->checksum = 0;
- }
-
- /* Hairpinning */
- if (!is_output_feature)
- snat_hairpinning (sm, b0, ip0, udp0, tcp0, proto0);
-
- /* Accounting */
- s0->last_heard = now;
- s0->total_pkts++;
- s0->total_bytes += vlib_buffer_length_in_chain (vm, b0);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
- trace00:
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- snat_in2out_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->is_slow_path = is_slow_path;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- t->session_index = ~0;
- if (s0)
- t->session_index = s0 - sm->per_thread_data[thread_index].sessions;
- }
-
- pkts_processed += next0 != SNAT_IN2OUT_NEXT_DROP;
-
- if (is_output_feature)
- iph_offset1 = vnet_buffer (b1)->ip.save_rewrite_length;
-
- ip1 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b1) +
- iph_offset1);
-
- udp1 = ip4_next_header (ip1);
- tcp1 = (tcp_header_t *) udp1;
- icmp1 = (icmp46_header_t *) udp1;
-
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
- rx_fib_index1 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
- sw_if_index1);
-
- if (PREDICT_FALSE(ip1->ttl == 1))
- {
- vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded,
- ICMP4_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next1 = SNAT_IN2OUT_NEXT_ICMP_ERROR;
- goto trace01;
- }
-
- proto1 = ip_proto_to_snat_proto (ip1->protocol);
-
- /* Next configured feature, probably ip4-lookup */
- if (is_slow_path)
- {
- if (PREDICT_FALSE (proto1 == ~0))
- {
- snat_in2out_unknown_proto (sm, b1, ip1, rx_fib_index1,
- thread_index, now, vm);
- goto trace01;
- }
-
- if (PREDICT_FALSE (proto1 == SNAT_PROTOCOL_ICMP))
- {
- next1 = icmp_in2out_slow_path
- (sm, b1, ip1, icmp1, sw_if_index1, rx_fib_index1, node,
- next1, now, thread_index, &s1);
- goto trace01;
- }
- }
- else
- {
- if (PREDICT_FALSE (proto1 == ~0 || proto1 == SNAT_PROTOCOL_ICMP))
- {
- next1 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace01;
- }
- }
-
- key1.addr = ip1->src_address;
- key1.port = udp1->src_port;
- key1.protocol = proto1;
- key1.fib_index = rx_fib_index1;
-
- kv1.key = key1.as_u64;
-
- if (PREDICT_FALSE(clib_bihash_search_8_8 (&sm->in2out, &kv1, &value1) != 0))
- {
- if (is_slow_path)
- {
- if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index1,
- ip1, proto1, rx_fib_index1)) && !is_output_feature)
- goto trace01;
-
- next1 = slow_path (sm, b1, ip1, rx_fib_index1, &key1,
- &s1, node, next1, thread_index);
- if (PREDICT_FALSE (next1 == SNAT_IN2OUT_NEXT_DROP))
- goto trace01;
- }
- else
- {
- next1 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace01;
- }
- }
- else
- {
- if (PREDICT_FALSE (value1.value == ~0ULL))
- {
- if (is_slow_path)
- {
- snat_in2out_lb(sm, b1, ip1, rx_fib_index1, thread_index,
- now, vm);
- goto trace01;
- }
- else
- {
- next1 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace01;
- }
- }
- else
- {
- s1 = pool_elt_at_index (
- sm->per_thread_data[thread_index].sessions,
- value1.value);
- }
- }
-
- old_addr1 = ip1->src_address.as_u32;
- ip1->src_address = s1->out2in.addr;
- new_addr1 = ip1->src_address.as_u32;
- if (!is_output_feature)
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = s1->out2in.fib_index;
-
- sum1 = ip1->checksum;
- sum1 = ip_csum_update (sum1, old_addr1, new_addr1,
- ip4_header_t,
- src_address /* changed member */);
- ip1->checksum = ip_csum_fold (sum1);
-
- if (PREDICT_TRUE(proto1 == SNAT_PROTOCOL_TCP))
- {
- old_port1 = tcp1->src_port;
- tcp1->src_port = s1->out2in.port;
- new_port1 = tcp1->src_port;
-
- sum1 = tcp1->checksum;
- sum1 = ip_csum_update (sum1, old_addr1, new_addr1,
- ip4_header_t,
- dst_address /* changed member */);
- sum1 = ip_csum_update (sum1, old_port1, new_port1,
- ip4_header_t /* cheat */,
- length /* changed member */);
- tcp1->checksum = ip_csum_fold(sum1);
- }
- else
- {
- old_port1 = udp1->src_port;
- udp1->src_port = s1->out2in.port;
- udp1->checksum = 0;
- }
-
- /* Hairpinning */
- if (!is_output_feature)
- snat_hairpinning (sm, b1, ip1, udp1, tcp1, proto1);
-
- /* Accounting */
- s1->last_heard = now;
- s1->total_pkts++;
- s1->total_bytes += vlib_buffer_length_in_chain (vm, b1);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s1))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s1->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s1->per_user_list_head_index,
- s1->per_user_index);
- }
- trace01:
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b1->flags & VLIB_BUFFER_IS_TRACED)))
- {
- snat_in2out_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- t->session_index = ~0;
- if (s1)
- t->session_index = s1 - sm->per_thread_data[thread_index].sessions;
- }
-
- pkts_processed += next1 != SNAT_IN2OUT_NEXT_DROP;
-
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- 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;
- icmp46_header_t * icmp0;
- snat_session_key_t key0;
- u32 rx_fib_index0;
- u32 proto0;
- snat_session_t * s0 = 0;
- clib_bihash_kv_8_8_t kv0, value0;
- u32 iph_offset0 = 0;
-
- /* 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 = SNAT_IN2OUT_NEXT_LOOKUP;
-
- if (is_output_feature)
- iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length;
-
- ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
- iph_offset0);
-
- udp0 = ip4_next_header (ip0);
- tcp0 = (tcp_header_t *) udp0;
- icmp0 = (icmp46_header_t *) udp0;
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index,
- sw_if_index0);
-
- if (PREDICT_FALSE(ip0->ttl == 1))
- {
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded,
- ICMP4_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next0 = SNAT_IN2OUT_NEXT_ICMP_ERROR;
- goto trace0;
- }
-
- proto0 = ip_proto_to_snat_proto (ip0->protocol);
-
- /* Next configured feature, probably ip4-lookup */
- if (is_slow_path)
- {
- if (PREDICT_FALSE (proto0 == ~0))
- {
- snat_in2out_unknown_proto (sm, b0, ip0, rx_fib_index0,
- thread_index, now, vm);
- goto trace0;
- }
-
- if (PREDICT_FALSE (proto0 == SNAT_PROTOCOL_ICMP))
- {
- next0 = icmp_in2out_slow_path
- (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
- next0, now, thread_index, &s0);
- goto trace0;
- }
- }
- else
- {
- if (PREDICT_FALSE (proto0 == ~0 || proto0 == SNAT_PROTOCOL_ICMP))
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace0;
- }
- }
-
- key0.addr = ip0->src_address;
- key0.port = udp0->src_port;
- key0.protocol = proto0;
- key0.fib_index = rx_fib_index0;
-
- kv0.key = key0.as_u64;
-
- if (clib_bihash_search_8_8 (&sm->in2out, &kv0, &value0))
- {
- if (is_slow_path)
- {
- if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0,
- ip0, proto0, rx_fib_index0)) && !is_output_feature)
- goto trace0;
-
- next0 = slow_path (sm, b0, ip0, rx_fib_index0, &key0,
- &s0, node, next0, thread_index);
-
- if (PREDICT_FALSE (next0 == SNAT_IN2OUT_NEXT_DROP))
- goto trace0;
- }
- else
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace0;
- }
- }
- else
- {
- if (PREDICT_FALSE (value0.value == ~0ULL))
- {
- if (is_slow_path)
- {
- snat_in2out_lb(sm, b0, ip0, rx_fib_index0, thread_index,
- now, vm);
- goto trace0;
- }
- else
- {
- next0 = SNAT_IN2OUT_NEXT_SLOW_PATH;
- goto trace0;
- }
- }
- else
- {
- s0 = pool_elt_at_index (
- sm->per_thread_data[thread_index].sessions,
- value0.value);
- }
- }
-
- old_addr0 = ip0->src_address.as_u32;
- ip0->src_address = s0->out2in.addr;
- new_addr0 = ip0->src_address.as_u32;
- if (!is_output_feature)
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index;
-
- 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_TRUE(proto0 == SNAT_PROTOCOL_TCP))
- {
- old_port0 = tcp0->src_port;
- tcp0->src_port = s0->out2in.port;
- new_port0 = tcp0->src_port;
-
- 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 = s0->out2in.port;
- udp0->checksum = 0;
- }
-
- /* Hairpinning */
- if (!is_output_feature)
- snat_hairpinning (sm, b0, ip0, udp0, tcp0, proto0);
-
- /* Accounting */
- s0->last_heard = now;
- s0->total_pkts++;
- s0->total_bytes += vlib_buffer_length_in_chain (vm, b0);
- /* Per-user LRU list maintenance for dynamic translation */
- if (!snat_is_session_static (s0))
- {
- clib_dlist_remove (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_index);
- clib_dlist_addtail (sm->per_thread_data[thread_index].list_pool,
- s0->per_user_list_head_index,
- s0->per_user_index);
- }
-
- trace0:
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- snat_in2out_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->is_slow_path = is_slow_path;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- t->session_index = ~0;
- if (s0)
- t->session_index = s0 - sm->per_thread_data[thread_index].sessions;
- }
-
- pkts_processed += next0 != SNAT_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,
- SNAT_IN2OUT_ERROR_IN2OUT_PACKETS,
- pkts_processed);
- return frame->n_vectors;
-}
-
-static uword
-snat_in2out_fast_path_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return snat_in2out_node_fn_inline (vm, node, frame, 0 /* is_slow_path */, 0);
-}
-
-VLIB_REGISTER_NODE (snat_in2out_node) = {
- .function = snat_in2out_fast_path_fn,
- .name = "nat44-in2out",
- .vector_size = sizeof (u32),
- .format_trace = format_snat_in2out_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(snat_in2out_error_strings),
- .error_strings = snat_in2out_error_strings,
-
- .runtime_data_bytes = sizeof (snat_runtime_t),
-
- .n_next_nodes = SNAT_IN2OUT_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [SNAT_IN2OUT_NEXT_DROP] = "error-drop",
- [SNAT_IN2OUT_NEXT_LOOKUP] = "ip4-lookup",
- [SNAT_IN2OUT_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
- [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_node, snat_in2out_fast_path_fn);
-
-static uword
-snat_in2out_output_fast_path_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return snat_in2out_node_fn_inline (vm, node, frame, 0 /* is_slow_path */, 1);
-}
-
-VLIB_REGISTER_NODE (snat_in2out_output_node) = {
- .function = snat_in2out_output_fast_path_fn,
- .name = "nat44-in2out-output",
- .vector_size = sizeof (u32),
- .format_trace = format_snat_in2out_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(snat_in2out_error_strings),
- .error_strings = snat_in2out_error_strings,
-
- .runtime_data_bytes = sizeof (snat_runtime_t),
-
- .n_next_nodes = SNAT_IN2OUT_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [SNAT_IN2OUT_NEXT_DROP] = "error-drop",
- [SNAT_IN2OUT_NEXT_LOOKUP] = "interface-output",
- [SNAT_IN2OUT_NEXT_SLOW_PATH] = "nat44-in2out-output-slowpath",
- [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_output_node,
- snat_in2out_output_fast_path_fn);
-
-static uword
-snat_in2out_slow_path_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return snat_in2out_node_fn_inline (vm, node, frame, 1 /* is_slow_path */, 0);
-}
-
-VLIB_REGISTER_NODE (snat_in2out_slowpath_node) = {
- .function = snat_in2out_slow_path_fn,
- .name = "nat44-in2out-slowpath",
- .vector_size = sizeof (u32),
- .format_trace = format_snat_in2out_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(snat_in2out_error_strings),
- .error_strings = snat_in2out_error_strings,
-
- .runtime_data_bytes = sizeof (snat_runtime_t),
-
- .n_next_nodes = SNAT_IN2OUT_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [SNAT_IN2OUT_NEXT_DROP] = "error-drop",
- [SNAT_IN2OUT_NEXT_LOOKUP] = "ip4-lookup",
- [SNAT_IN2OUT_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
- [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_slowpath_node,
- snat_in2out_slow_path_fn);
-
-static uword
-snat_in2out_output_slow_path_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return snat_in2out_node_fn_inline (vm, node, frame, 1 /* is_slow_path */, 1);
-}
-
-VLIB_REGISTER_NODE (snat_in2out_output_slowpath_node) = {
- .function = snat_in2out_output_slow_path_fn,
- .name = "nat44-in2out-output-slowpath",
- .vector_size = sizeof (u32),
- .format_trace = format_snat_in2out_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(snat_in2out_error_strings),
- .error_strings = snat_in2out_error_strings,
-
- .runtime_data_bytes = sizeof (snat_runtime_t),
-
- .n_next_nodes = SNAT_IN2OUT_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [SNAT_IN2OUT_NEXT_DROP] = "error-drop",
- [SNAT_IN2OUT_NEXT_LOOKUP] = "interface-output",
- [SNAT_IN2OUT_NEXT_SLOW_PATH] = "nat44-in2out-output-slowpath",
- [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_output_slowpath_node,
- snat_in2out_output_slow_path_fn);
-
-/**************************/
-/*** deterministic mode ***/
-/**************************/
-static uword
-snat_det_in2out_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- u32 n_left_from, * from, * to_next;
- snat_in2out_next_t next_index;
- u32 pkts_processed = 0;
- snat_main_t * sm = &snat_main;
- u32 now = (u32) vlib_time_now (vm);
- u32 thread_index = vlib_get_thread_index ();