diff options
Diffstat (limited to 'src/plugins/nat/nat44-ei/nat44_ei_hairpinning.c')
| -rw-r--r-- | src/plugins/nat/nat44-ei/nat44_ei_hairpinning.c | 759 |
1 files changed, 0 insertions, 759 deletions
diff --git a/src/plugins/nat/nat44-ei/nat44_ei_hairpinning.c b/src/plugins/nat/nat44-ei/nat44_ei_hairpinning.c deleted file mode 100644 index c3d3cfba386..00000000000 --- a/src/plugins/nat/nat44-ei/nat44_ei_hairpinning.c +++ /dev/null @@ -1,759 +0,0 @@ -/* - * nat44_ei.c - nat44 endpoint dependent plugin - * * Copyright (c) 2020 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 <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vnet/fib/ip4_fib.h> - -#include <nat/nat44-ei/nat44_ei.h> -#include <nat/nat44-ei/nat44_ei_inlines.h> -#include <nat/nat44-ei/nat44_ei_hairpinning.h> - -/* NAT buffer flags */ -#define NAT44_EI_FLAG_HAIRPINNING (1 << 0) - -typedef enum -{ - NAT44_EI_HAIRPIN_SRC_NEXT_DROP, - NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT, - NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH, - NAT44_EI_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT, - NAT44_EI_HAIRPIN_SRC_N_NEXT, -} nat44_ei_hairpin_src_next_t; - -typedef enum -{ - NAT44_EI_HAIRPIN_NEXT_LOOKUP, - NAT44_EI_HAIRPIN_NEXT_DROP, - NAT44_EI_HAIRPIN_NEXT_HANDOFF, - NAT44_EI_HAIRPIN_N_NEXT, -} nat44_ei_hairpin_next_t; - -typedef struct -{ - ip4_address_t addr; - u16 port; - u32 fib_index; - u32 session_index; -} nat44_ei_hairpin_trace_t; - -static u8 * -format_nat44_ei_hairpin_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 *); - nat44_ei_hairpin_trace_t *t = va_arg (*args, nat44_ei_hairpin_trace_t *); - - s = format (s, "new dst addr %U port %u fib-index %u", format_ip4_address, - &t->addr, clib_net_to_host_u16 (t->port), t->fib_index); - if (~0 == t->session_index) - { - s = format (s, " is-static-mapping"); - } - else - { - s = format (s, " session-index %u", t->session_index); - } - - return s; -} - -extern vnet_feature_arc_registration_t vnet_feat_arc_ip4_local; - -static_always_inline int -nat44_ei_is_hairpinning (nat44_ei_main_t *nm, ip4_address_t *dst_addr) -{ - nat44_ei_address_t *ap; - clib_bihash_kv_8_8_t kv, value; - - vec_foreach (ap, nm->addresses) - { - if (ap->addr.as_u32 == dst_addr->as_u32) - return 1; - } - - init_nat_k (&kv, *dst_addr, 0, 0, 0); - if (!clib_bihash_search_8_8 (&nm->static_mapping_by_external, &kv, &value)) - return 1; - - return 0; -} - -#ifndef CLIB_MARCH_VARIANT -void -nat44_ei_hairpinning_sm_unknown_proto (nat44_ei_main_t *nm, vlib_buffer_t *b, - ip4_header_t *ip) -{ - clib_bihash_kv_8_8_t kv, value; - nat44_ei_static_mapping_t *m; - u32 old_addr, new_addr; - ip_csum_t sum; - - init_nat_k (&kv, ip->dst_address, 0, 0, 0); - if (clib_bihash_search_8_8 (&nm->static_mapping_by_external, &kv, &value)) - return; - - m = pool_elt_at_index (nm->static_mappings, value.value); - - old_addr = ip->dst_address.as_u32; - new_addr = ip->dst_address.as_u32 = m->local_addr.as_u32; - sum = ip->checksum; - sum = ip_csum_update (sum, old_addr, new_addr, ip4_header_t, dst_address); - ip->checksum = ip_csum_fold (sum); - - if (vnet_buffer (b)->sw_if_index[VLIB_TX] == ~0) - vnet_buffer (b)->sw_if_index[VLIB_TX] = m->fib_index; -} -#endif - -#ifndef CLIB_MARCH_VARIANT -int -nat44_ei_hairpinning (vlib_main_t *vm, vlib_node_runtime_t *node, - nat44_ei_main_t *nm, u32 thread_index, vlib_buffer_t *b0, - ip4_header_t *ip0, udp_header_t *udp0, - tcp_header_t *tcp0, u32 proto0, int do_trace, - u32 *required_thread_index) -{ - nat44_ei_session_t *s0 = NULL; - clib_bihash_kv_8_8_t kv0, value0; - ip_csum_t sum0; - u32 new_dst_addr0 = 0, old_dst_addr0, si = ~0; - u16 new_dst_port0 = ~0, old_dst_port0; - int rv; - ip4_address_t sm0_addr; - u16 sm0_port; - u32 sm0_fib_index; - u32 old_sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX]; - - /* Check if destination is static mappings */ - if (!nat44_ei_static_mapping_match ( - ip0->dst_address, udp0->dst_port, nm->outside_fib_index, proto0, - &sm0_addr, &sm0_port, &sm0_fib_index, 1 /* by external */, 0, 0)) - { - new_dst_addr0 = sm0_addr.as_u32; - new_dst_port0 = sm0_port; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = sm0_fib_index; - } - /* or active session */ - else - { - init_nat_k (&kv0, ip0->dst_address, udp0->dst_port, - nm->outside_fib_index, proto0); - rv = clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0); - if (rv) - { - rv = 0; - goto trace; - } - - if (thread_index != nat_value_get_thread_index (&value0)) - { - *required_thread_index = nat_value_get_thread_index (&value0); - return 0; - } - - si = nat_value_get_session_index (&value0); - s0 = pool_elt_at_index (nm->per_thread_data[thread_index].sessions, si); - new_dst_addr0 = s0->in2out.addr.as_u32; - new_dst_port0 = s0->in2out.port; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = s0->in2out.fib_index; - } - - /* Check if anything has changed and if not, then return 0. This - helps avoid infinite loop, repeating the three nodes - nat44-hairpinning-->ip4-lookup-->ip4-local, in case nothing has - changed. */ - old_dst_addr0 = ip0->dst_address.as_u32; - old_dst_port0 = tcp0->dst; - if (new_dst_addr0 == old_dst_addr0 && new_dst_port0 == old_dst_port0 && - vnet_buffer (b0)->sw_if_index[VLIB_TX] == old_sw_if_index) - return 0; - - /* Destination is behind the same NAT, use internal address and port */ - if (new_dst_addr0) - { - old_dst_addr0 = ip0->dst_address.as_u32; - ip0->dst_address.as_u32 = new_dst_addr0; - sum0 = ip0->checksum; - sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0, ip4_header_t, - dst_address); - ip0->checksum = ip_csum_fold (sum0); - - old_dst_port0 = tcp0->dst; - if (PREDICT_TRUE (new_dst_port0 != old_dst_port0)) - { - if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP)) - { - tcp0->dst = new_dst_port0; - sum0 = tcp0->checksum; - sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0, - ip4_header_t, dst_address); - sum0 = ip_csum_update (sum0, old_dst_port0, new_dst_port0, - ip4_header_t /* cheat */, length); - tcp0->checksum = ip_csum_fold (sum0); - } - else - { - udp0->dst_port = new_dst_port0; - udp0->checksum = 0; - } - } - else - { - if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP)) - { - sum0 = tcp0->checksum; - sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0, - ip4_header_t, dst_address); - tcp0->checksum = ip_csum_fold (sum0); - } - } - rv = 1; - goto trace; - } - rv = 0; -trace: - if (do_trace && PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - nat44_ei_hairpin_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); - t->addr.as_u32 = new_dst_addr0; - t->port = new_dst_port0; - t->fib_index = vnet_buffer (b0)->sw_if_index[VLIB_TX]; - if (s0) - { - t->session_index = si; - } - else - { - t->session_index = ~0; - } - } - return rv; -} -#endif - -#ifndef CLIB_MARCH_VARIANT -u32 -nat44_ei_icmp_hairpinning (nat44_ei_main_t *nm, vlib_buffer_t *b0, - u32 thread_index, ip4_header_t *ip0, - icmp46_header_t *icmp0, u32 *required_thread_index) -{ - clib_bihash_kv_8_8_t kv0, value0; - u32 old_dst_addr0, new_dst_addr0; - u32 old_addr0, new_addr0; - u16 old_port0, new_port0; - u16 old_checksum0, new_checksum0; - u32 si, ti = 0; - ip_csum_t sum0; - nat44_ei_session_t *s0; - nat44_ei_static_mapping_t *m0; - - if (icmp_type_is_error_message ( - vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags)) - { - ip4_header_t *inner_ip0 = 0; - tcp_udp_header_t *l4_header = 0; - - inner_ip0 = (ip4_header_t *) ((icmp_echo_header_t *) (icmp0 + 1) + 1); - l4_header = ip4_next_header (inner_ip0); - u32 protocol = ip_proto_to_nat_proto (inner_ip0->protocol); - - if (protocol != NAT_PROTOCOL_TCP && protocol != NAT_PROTOCOL_UDP) - return 1; - - init_nat_k (&kv0, ip0->dst_address, l4_header->src_port, - nm->outside_fib_index, protocol); - if (clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0)) - return 1; - ti = nat_value_get_thread_index (&value0); - if (ti != thread_index) - { - *required_thread_index = ti; - return 1; - } - si = nat_value_get_session_index (&value0); - s0 = pool_elt_at_index (nm->per_thread_data[ti].sessions, si); - new_dst_addr0 = s0->in2out.addr.as_u32; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = s0->in2out.fib_index; - - /* update inner source IP address */ - old_addr0 = inner_ip0->src_address.as_u32; - inner_ip0->src_address.as_u32 = new_dst_addr0; - new_addr0 = inner_ip0->src_address.as_u32; - sum0 = icmp0->checksum; - sum0 = - ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t, src_address); - icmp0->checksum = ip_csum_fold (sum0); - - /* update inner IP header checksum */ - old_checksum0 = inner_ip0->checksum; - sum0 = inner_ip0->checksum; - sum0 = - ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t, src_address); - inner_ip0->checksum = ip_csum_fold (sum0); - new_checksum0 = inner_ip0->checksum; - sum0 = icmp0->checksum; - sum0 = ip_csum_update (sum0, old_checksum0, new_checksum0, ip4_header_t, - checksum); - icmp0->checksum = ip_csum_fold (sum0); - - /* update inner source port */ - old_port0 = l4_header->src_port; - l4_header->src_port = s0->in2out.port; - new_port0 = l4_header->src_port; - sum0 = icmp0->checksum; - sum0 = ip_csum_update (sum0, old_port0, new_port0, tcp_udp_header_t, - src_port); - icmp0->checksum = ip_csum_fold (sum0); - } - else - { - init_nat_k (&kv0, ip0->dst_address, 0, nm->outside_fib_index, 0); - if (clib_bihash_search_8_8 (&nm->static_mapping_by_external, &kv0, - &value0)) - { - icmp_echo_header_t *echo0 = (icmp_echo_header_t *) (icmp0 + 1); - u16 icmp_id0 = echo0->identifier; - init_nat_k (&kv0, ip0->dst_address, icmp_id0, nm->outside_fib_index, - NAT_PROTOCOL_ICMP); - int rv = clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0); - if (!rv) - { - ti = nat_value_get_thread_index (&value0); - if (ti != thread_index) - { - *required_thread_index = ti; - return 1; - } - si = nat_value_get_session_index (&value0); - s0 = pool_elt_at_index (nm->per_thread_data[ti].sessions, si); - new_dst_addr0 = s0->in2out.addr.as_u32; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = s0->in2out.fib_index; - echo0->identifier = s0->in2out.port; - sum0 = icmp0->checksum; - sum0 = ip_csum_update (sum0, icmp_id0, s0->in2out.port, - icmp_echo_header_t, identifier); - icmp0->checksum = ip_csum_fold (sum0); - goto change_addr; - } - - return 1; - } - - m0 = pool_elt_at_index (nm->static_mappings, value0.value); - - new_dst_addr0 = m0->local_addr.as_u32; - if (vnet_buffer (b0)->sw_if_index[VLIB_TX] == ~0) - vnet_buffer (b0)->sw_if_index[VLIB_TX] = m0->fib_index; - } -change_addr: - /* Destination is behind the same NAT, use internal address and port */ - if (new_dst_addr0) - { - old_dst_addr0 = ip0->dst_address.as_u32; - ip0->dst_address.as_u32 = new_dst_addr0; - sum0 = ip0->checksum; - sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0, ip4_header_t, - dst_address); - ip0->checksum = ip_csum_fold (sum0); - } - return 0; -} -#endif - -void nat44_ei_hairpinning_unknown_proto (nat44_ei_main_t *nm, vlib_buffer_t *b, - ip4_header_t *ip); - -#ifndef CLIB_MARCH_VARIANT -void -nat44_ei_hairpinning_unknown_proto (nat44_ei_main_t *nm, vlib_buffer_t *b, - ip4_header_t *ip) -{ - clib_bihash_kv_8_8_t kv, value; - nat44_ei_static_mapping_t *m; - u32 old_addr, new_addr; - ip_csum_t sum; - - init_nat_k (&kv, ip->dst_address, 0, 0, 0); - if (clib_bihash_search_8_8 (&nm->static_mapping_by_external, &kv, &value)) - return; - - m = pool_elt_at_index (nm->static_mappings, value.value); - - old_addr = ip->dst_address.as_u32; - new_addr = ip->dst_address.as_u32 = m->local_addr.as_u32; - sum = ip->checksum; - sum = ip_csum_update (sum, old_addr, new_addr, ip4_header_t, dst_address); - ip->checksum = ip_csum_fold (sum); - - if (vnet_buffer (b)->sw_if_index[VLIB_TX] == ~0) - vnet_buffer (b)->sw_if_index[VLIB_TX] = m->fib_index; -} -#endif - -VLIB_NODE_FN (nat44_ei_hairpin_src_node) -(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) -{ - u32 n_left_from, *from, *to_next; - nat44_ei_hairpin_src_next_t next_index; - nat44_ei_main_t *nm = &nat44_ei_main; - - 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; - nat44_ei_interface_t *i; - u32 rx_sw_if_index0; - u32 tx_sw_if_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); - rx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - tx_sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX]; - - pool_foreach (i, nm->output_feature_interfaces) - { - /* Only packets from NAT inside interface */ - if ((nat44_ei_interface_is_inside (i)) && - (rx_sw_if_index0 == i->sw_if_index)) - { - if (PREDICT_FALSE ((vnet_buffer (b0)->snat.flags) & - NAT44_EI_FLAG_HAIRPINNING)) - { - if (PREDICT_TRUE (nm->num_workers > 1)) - { - next0 = NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH; - goto skip_feature_next; - } - else - { - next0 = NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT; - goto skip_feature_next; - } - } - break; - } - } - - vnet_feature_next (&next0, b0); - skip_feature_next: - - if (next0 != NAT44_EI_HAIRPIN_SRC_NEXT_DROP) - { - vlib_increment_simple_counter (&nm->counters.hairpinning, - vm->thread_index, tx_sw_if_index0, - 1); - } - - /* 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); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (nat44_ei_hairpin_dst_node) -(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) -{ - u32 n_left_from, *from, *to_next; - u32 thread_index = vm->thread_index; - nat44_ei_hairpin_next_t next_index; - nat44_ei_main_t *nm = &nat44_ei_main; - - 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; - ip4_header_t *ip0; - u32 proto0; - u32 sw_if_index0; - u32 required_thread_index = thread_index; - - /* 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 = NAT44_EI_HAIRPIN_NEXT_LOOKUP; - ip0 = vlib_buffer_get_current (b0); - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - - proto0 = ip_proto_to_nat_proto (ip0->protocol); - - vnet_buffer (b0)->snat.flags = 0; - if (PREDICT_FALSE (nat44_ei_is_hairpinning (nm, &ip0->dst_address))) - { - if (proto0 == NAT_PROTOCOL_TCP || proto0 == NAT_PROTOCOL_UDP) - { - udp_header_t *udp0 = ip4_next_header (ip0); - tcp_header_t *tcp0 = (tcp_header_t *) udp0; - - nat44_ei_hairpinning (vm, node, nm, thread_index, b0, ip0, - udp0, tcp0, proto0, 1 /* do_trace */, - &required_thread_index); - } - else if (proto0 == NAT_PROTOCOL_ICMP) - { - icmp46_header_t *icmp0 = ip4_next_header (ip0); - - nat44_ei_icmp_hairpinning (nm, b0, thread_index, ip0, icmp0, - &required_thread_index); - } - else - { - nat44_ei_hairpinning_unknown_proto (nm, b0, ip0); - } - - vnet_buffer (b0)->snat.flags = NAT44_EI_FLAG_HAIRPINNING; - } - - if (thread_index != required_thread_index) - { - vnet_buffer (b0)->snat.required_thread_index = - required_thread_index; - next0 = NAT44_EI_HAIRPIN_NEXT_HANDOFF; - } - - if (next0 != NAT44_EI_HAIRPIN_NEXT_DROP) - { - vlib_increment_simple_counter ( - &nm->counters.hairpinning, vm->thread_index, sw_if_index0, 1); - } - - /* 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); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (nat44_ei_hairpinning_node) -(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) -{ - u32 n_left_from, *from, *to_next; - u32 thread_index = vm->thread_index; - nat44_ei_hairpin_next_t next_index; - nat44_ei_main_t *nm = &nat44_ei_main; - vnet_feature_main_t *fm = &feature_main; - u8 arc_index = vnet_feat_arc_ip4_local.feature_arc_index; - vnet_feature_config_main_t *cm = &fm->feature_config_mains[arc_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; - ip4_header_t *ip0; - u32 proto0; - udp_header_t *udp0; - tcp_header_t *tcp0; - u32 sw_if_index0; - u32 required_thread_index = thread_index; - - /* 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); - 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]; - - proto0 = ip_proto_to_nat_proto (ip0->protocol); - int next0_resolved = 0; - - if (nat44_ei_hairpinning (vm, node, nm, thread_index, b0, ip0, udp0, - tcp0, proto0, 1 /* do_trace */, - &required_thread_index)) - { - next0 = NAT44_EI_HAIRPIN_NEXT_LOOKUP; - next0_resolved = 1; - } - - if (thread_index != required_thread_index) - { - vnet_buffer (b0)->snat.required_thread_index = - required_thread_index; - next0 = NAT44_EI_HAIRPIN_NEXT_HANDOFF; - next0_resolved = 1; - } - - if (!next0_resolved) - vnet_get_config_data (&cm->config_main, &b0->current_config_index, - &next0, 0); - - if (next0 != NAT44_EI_HAIRPIN_NEXT_DROP) - { - vlib_increment_simple_counter ( - &nm->counters.hairpinning, vm->thread_index, sw_if_index0, 1); - } - - /* 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); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (nat44_ei_hairpinning_dst_handoff_node) -(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) -{ - return nat44_ei_hairpinning_handoff_fn_inline ( - vm, node, frame, nat44_ei_main.hairpin_dst_fq_index); -} - -VLIB_NODE_FN (nat44_ei_hairpinning_handoff_node) -(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) -{ - return nat44_ei_hairpinning_handoff_fn_inline ( - vm, node, frame, nat44_ei_main.hairpinning_fq_index); -} - -VLIB_REGISTER_NODE (nat44_ei_hairpinning_dst_handoff_node) = { - .name = "nat44-ei-hairpin-dst-handoff", - .vector_size = sizeof (u32), - .n_errors = ARRAY_LEN(nat44_ei_hairpinning_handoff_error_strings), - .error_strings = nat44_ei_hairpinning_handoff_error_strings, - .format_trace = format_nat44_ei_hairpinning_handoff_trace, - - .n_next_nodes = 1, - - .next_nodes = { - [0] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (nat44_ei_hairpinning_handoff_node) = { - .name = "nat44-ei-hairpinning-handoff", - .vector_size = sizeof (u32), - .n_errors = ARRAY_LEN(nat44_ei_hairpinning_handoff_error_strings), - .error_strings = nat44_ei_hairpinning_handoff_error_strings, - .format_trace = format_nat44_ei_hairpinning_handoff_trace, - - .n_next_nodes = 1, - - .next_nodes = { - [0] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (nat44_ei_hairpin_src_node) = { - .name = "nat44-ei-hairpin-src", - .vector_size = sizeof (u32), - .type = VLIB_NODE_TYPE_INTERNAL, - .n_next_nodes = NAT44_EI_HAIRPIN_SRC_N_NEXT, - .next_nodes = { - [NAT44_EI_HAIRPIN_SRC_NEXT_DROP] = "error-drop", - [NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT] = "nat44-ei-in2out-output", - [NAT44_EI_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT] = "interface-output", - [NAT44_EI_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH] = "nat44-ei-in2out-output-worker-handoff", - }, -}; - -VLIB_REGISTER_NODE (nat44_ei_hairpin_dst_node) = { - .name = "nat44-ei-hairpin-dst", - .vector_size = sizeof (u32), - .type = VLIB_NODE_TYPE_INTERNAL, - .format_trace = format_nat44_ei_hairpin_trace, - .n_next_nodes = NAT44_EI_HAIRPIN_N_NEXT, - .next_nodes = { - [NAT44_EI_HAIRPIN_NEXT_DROP] = "error-drop", - [NAT44_EI_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", - [NAT44_EI_HAIRPIN_NEXT_HANDOFF] = "nat44-ei-hairpin-dst-handoff", - }, -}; - -VLIB_REGISTER_NODE (nat44_ei_hairpinning_node) = { - .name = "nat44-ei-hairpinning", - .vector_size = sizeof (u32), - .type = VLIB_NODE_TYPE_INTERNAL, - .format_trace = format_nat44_ei_hairpin_trace, - .n_next_nodes = NAT44_EI_HAIRPIN_N_NEXT, - .next_nodes = { - [NAT44_EI_HAIRPIN_NEXT_DROP] = "error-drop", - [NAT44_EI_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", - [NAT44_EI_HAIRPIN_NEXT_HANDOFF] = "nat44-ei-hairpinning-handoff", - }, -}; - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |