vppinfra: install missing cuckoo hash header files - vpp

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author	Damjan Marion <damarion@cisco.com>	2020-04-15 17:44:27 +0200
committer	Dave Barach <openvpp@barachs.net>	2020-04-15 17:23:50 +0000
commit	4422753b9f7edf7ff391f97a10c1b8a7dbd7dafb (patch)
tree	e6a87e892f66c2e0429ab88fab669453e7354999 /src/vlibmemory/vl_memory_msg_enum.h
parent	77ea42b31ae12f0aef829097225e353199360f30 (diff)

vppinfra: install missing cuckoo hash header files

Type: improvement Change-Id: Ifb4eec00fd4f1d19e4b0af802d015a35e402e0af Signed-off-by: Damjan Marion <damarion@cisco.com>

Diffstat (limited to 'src/vlibmemory/vl_memory_msg_enum.h')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2018 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. */ /** * @file * @brief NAT44 hairpinning */ #include <vlib/vlib.h> #include <vnet/vnet.h> #include <vnet/fib/ip4_fib.h> #include <nat/nat.h> #include <nat/nat_inlines.h> typedef enum { SNAT_HAIRPIN_SRC_NEXT_DROP, SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT, SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH, SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT, SNAT_HAIRPIN_SRC_N_NEXT, } snat_hairpin_src_next_t; typedef enum { NAT_HAIRPIN_NEXT_LOOKUP, NAT_HAIRPIN_NEXT_DROP, NAT_HAIRPIN_N_NEXT, } nat_hairpin_next_t; #define foreach_nat44_hairpin_error \ _(PROCESSED, "NAT44 hairpinning packets processed") typedef enum { #define _(sym,str) NAT44_HAIRPIN_ERROR_##sym, foreach_nat44_hairpin_error #undef _ NAT44_HAIRPIN_N_ERROR, } nat44_hairpin_error_t; static char *nat44_hairpin_error_strings[] = { #define _(sym,string) string, foreach_nat44_hairpin_error #undef _ }; extern vnet_feature_arc_registration_t vnet_feat_arc_ip4_local; static_always_inline int is_hairpinning (snat_main_t * sm, ip4_address_t * dst_addr) { snat_address_t *ap; clib_bihash_kv_8_8_t kv, value; snat_session_key_t m_key; /* *INDENT-OFF* */ vec_foreach (ap, sm->addresses) { if (ap->addr.as_u32 == dst_addr->as_u32) return 1; } /* *INDENT-ON* */ m_key.addr.as_u32 = dst_addr->as_u32; m_key.fib_index = 0; m_key.port = 0; m_key.protocol = 0; kv.key = m_key.as_u64; if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) return 1; return 0; } #ifndef CLIB_MARCH_VARIANT int snat_hairpinning (snat_main_t * sm, vlib_buffer_t * b0, ip4_header_t * ip0, udp_header_t * udp0, tcp_header_t * tcp0, u32 proto0, int is_ed) { snat_session_key_t key0, sm0; snat_session_t *s0; clib_bihash_kv_8_8_t kv0, value0; ip_csum_t sum0; u32 new_dst_addr0 = 0, old_dst_addr0, ti = 0, si; u16 new_dst_port0, old_dst_port0; int rv; key0.addr = ip0->dst_address; key0.port = udp0->dst_port; key0.protocol = proto0; key0.fib_index = sm->outside_fib_index; kv0.key = key0.as_u64; /* Check if destination is static mappings */ if (!snat_static_mapping_match (sm, key0, &sm0, 1, 0, 0, 0, 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 { if (sm->num_workers > 1) ti = (clib_net_to_host_u16 (udp0->dst_port) - 1024) / sm->port_per_thread; else ti = sm->num_workers; if (is_ed) { clib_bihash_kv_16_8_t ed_kv, ed_value; make_ed_kv (&ip0->dst_address, &ip0->src_address, ip0->protocol, sm->outside_fib_index, udp0->dst_port, udp0->src_port, ~0ULL, &ed_kv); rv = clib_bihash_search_16_8 (&sm->per_thread_data[ti].out2in_ed, &ed_kv, &ed_value); si = ed_value.value; } else { rv = clib_bihash_search_8_8 (&sm->per_thread_data[ti].out2in, &kv0, &value0); si = value0.value; } if (rv) return 0; s0 = pool_elt_at_index (sm->per_thread_data[ti].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; } /* 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 == SNAT_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 == SNAT_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); } } return 1; } return 0; } #endif #ifndef CLIB_MARCH_VARIANT u32 snat_icmp_hairpinning (snat_main_t * sm, vlib_buffer_t * b0, ip4_header_t * ip0, icmp46_header_t * icmp0, int is_ed) { snat_session_key_t key0; 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; snat_session_t *s0; snat_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_snat_proto (inner_ip0->protocol); if (protocol != SNAT_PROTOCOL_TCP && protocol != SNAT_PROTOCOL_UDP) return 1; if (is_ed) { clib_bihash_kv_16_8_t ed_kv, ed_value; make_ed_kv (&ip0->dst_address, &ip0->src_address, inner_ip0->protocol, sm->outside_fib_index, l4_header->src_port, l4_header->dst_port, ~0ULL, &ed_kv); if (clib_bihash_search_16_8 (&sm->per_thread_data[ti].out2in_ed, &ed_kv, &ed_value)) return 1; si = ed_value.value; } else { key0.addr = ip0->dst_address; key0.port = l4_header->src_port; key0.protocol = protocol; key0.fib_index = sm->outside_fib_index; kv0.key = key0.as_u64; if (clib_bihash_search_8_8 (&sm->per_thread_data[ti].out2in, &kv0, &value0)) return 1; si = value0.value; } s0 = pool_elt_at_index (sm->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 { key0.addr = ip0->dst_address; key0.port = 0; key0.protocol = 0; key0.fib_index = sm->outside_fib_index; kv0.key = key0.as_u64; if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0)) { if (!is_ed) { icmp_echo_header_t *echo0 = (icmp_echo_header_t *) (icmp0 + 1); u16 icmp_id0 = echo0->identifier; key0.addr = ip0->dst_address; key0.port = icmp_id0; key0.protocol = SNAT_PROTOCOL_ICMP; key0.fib_index = sm->outside_fib_index; kv0.key = key0.as_u64; if (sm->num_workers > 1) ti = (clib_net_to_host_u16 (icmp_id0) - 1024) / sm->port_per_thread; else ti = sm->num_workers; int rv = clib_bihash_search_8_8 (&sm->per_thread_data[ti].out2in, &kv0, &value0); if (!rv) { si = value0.value; s0 = pool_elt_at_index (sm->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 (sm->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 #ifndef CLIB_MARCH_VARIANT void nat_hairpinning_sm_unknown_proto (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip) { clib_bihash_kv_8_8_t kv, value; snat_static_mapping_t *m; u32 old_addr, new_addr; ip_csum_t sum; make_sm_kv (&kv, &ip->dst_address, 0, 0, 0); if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) return; m = pool_elt_at_index (sm->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 void nat44_ed_hairpinning_unknown_proto (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip) { u32 old_addr, new_addr = 0, ti = 0; clib_bihash_kv_8_8_t kv, value; clib_bihash_kv_16_8_t s_kv, s_value; snat_static_mapping_t *m; ip_csum_t sum; snat_session_t *s; snat_main_per_thread_data_t *tsm; if (sm->num_workers > 1) ti = sm->worker_out2in_cb (b, ip, sm->outside_fib_index, 0); else ti = sm->num_workers; tsm = &sm->per_thread_data[ti]; old_addr = ip->dst_address.as_u32; make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, sm->outside_fib_index, 0, 0, ~0ULL, &s_kv); if (clib_bihash_search_16_8 (&tsm->out2in_ed, &s_kv, &s_value)) { make_sm_kv (&kv, &ip->dst_address, 0, 0, 0); if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) return; m = pool_elt_at_index (sm->static_mappings, value.value); if (vnet_buffer (b)->sw_if_index[VLIB_TX] == ~0) vnet_buffer (b)->sw_if_index[VLIB_TX] = m->fib_index; new_addr = ip->dst_address.as_u32 = m->local_addr.as_u32; } else { s = pool_elt_at_index (sm->per_thread_data[ti].sessions, s_value.value); if (vnet_buffer (b)->sw_if_index[VLIB_TX] == ~0) vnet_buffer (b)->sw_if_index[VLIB_TX] = s->in2out.fib_index; new_addr = ip->dst_address.as_u32 = s->in2out.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); } #endif static inline uword nat44_hairpinning_fn_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ed) { u32 n_left_from, *from, *to_next, stats_node_index; nat_hairpin_next_t next_index; u32 pkts_processed = 0; snat_main_t *sm = &snat_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]; stats_node_index = is_ed ? sm->ed_hairpinning_node_index : sm->hairpinning_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; ip4_header_t *ip0; u32 proto0; udp_header_t *udp0; tcp_header_t *tcp0; /* 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; proto0 = ip_proto_to_snat_proto (ip0->protocol); vnet_get_config_data (&cm->config_main, &b0->current_config_index, &next0, 0); if (snat_hairpinning (sm, b0, ip0, udp0, tcp0, proto0, is_ed)) next0 = NAT_HAIRPIN_NEXT_LOOKUP; pkts_processed += next0 != NAT_HAIRPIN_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, NAT44_HAIRPIN_ERROR_PROCESSED, pkts_processed); return frame->n_vectors; } VLIB_NODE_FN (nat44_hairpinning_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return nat44_hairpinning_fn_inline (vm, node, frame, 0); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (nat44_hairpinning_node) = { .name = "nat44-hairpinning", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = NAT_HAIRPIN_N_NEXT, .next_nodes = { [NAT_HAIRPIN_NEXT_DROP] = "error-drop", [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", }, }; /* *INDENT-ON* */ VLIB_NODE_FN (nat44_ed_hairpinning_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return nat44_hairpinning_fn_inline (vm, node, frame, 1); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (nat44_ed_hairpinning_node) = { .name = "nat44-ed-hairpinning", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = NAT_HAIRPIN_N_NEXT, .next_nodes = { [NAT_HAIRPIN_NEXT_DROP] = "error-drop", [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", }, }; /* *INDENT-ON* */ static inline uword snat_hairpin_dst_fn_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ed) { u32 n_left_from, *from, *to_next, stats_node_index; nat_hairpin_next_t next_index; u32 pkts_processed = 0; snat_main_t *sm = &snat_main; stats_node_index = is_ed ? sm->ed_hairpin_dst_node_index : sm->hairpin_dst_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; ip4_header_t *ip0; u32 proto0; /* 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 = NAT_HAIRPIN_NEXT_LOOKUP; ip0 = vlib_buffer_get_current (b0); proto0 = ip_proto_to_snat_proto (ip0->protocol); vnet_buffer (b0)->snat.flags = 0; if (PREDICT_FALSE (is_hairpinning (sm, &ip0->dst_address))) { if (proto0 == SNAT_PROTOCOL_TCP || proto0 == SNAT_PROTOCOL_UDP) { udp_header_t *udp0 = ip4_next_header (ip0); tcp_header_t *tcp0 = (tcp_header_t *) udp0; snat_hairpinning (sm, b0, ip0, udp0, tcp0, proto0, is_ed); } else if (proto0 == SNAT_PROTOCOL_ICMP) { icmp46_header_t *icmp0 = ip4_next_header (ip0); snat_icmp_hairpinning (sm, b0, ip0, icmp0, is_ed); } else { if (is_ed) nat44_ed_hairpinning_unknown_proto (sm, b0, ip0); else nat_hairpinning_sm_unknown_proto (sm, b0, ip0); } vnet_buffer (b0)->snat.flags = SNAT_FLAG_HAIRPINNING; } pkts_processed += next0 != NAT_HAIRPIN_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, NAT44_HAIRPIN_ERROR_PROCESSED, pkts_processed); return frame->n_vectors; } VLIB_NODE_FN (snat_hairpin_dst_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return snat_hairpin_dst_fn_inline (vm, node, frame, 0); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (snat_hairpin_dst_node) = { .name = "nat44-hairpin-dst", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = NAT_HAIRPIN_N_NEXT, .next_nodes = { [NAT_HAIRPIN_NEXT_DROP] = "error-drop", [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", }, }; /* *INDENT-ON* */ VLIB_NODE_FN (nat44_ed_hairpin_dst_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return snat_hairpin_dst_fn_inline (vm, node, frame, 1); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (nat44_ed_hairpin_dst_node) = { .name = "nat44-ed-hairpin-dst", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = NAT_HAIRPIN_N_NEXT, .next_nodes = { [NAT_HAIRPIN_NEXT_DROP] = "error-drop", [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup", }, }; /* *INDENT-ON* */ static inline uword snat_hairpin_src_fn_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ed) { u32 n_left_from, *from, *to_next, stats_node_index; snat_hairpin_src_next_t next_index; u32 pkts_processed = 0; snat_main_t *sm = &snat_main; stats_node_index = is_ed ? sm->ed_hairpin_src_node_index : sm->hairpin_src_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; snat_interface_t *i; u32 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); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; vnet_feature_next (&next0, b0); /* *INDENT-OFF* */ pool_foreach (i, sm->output_feature_interfaces, ({ /* Only packets from NAT inside interface */ if ((nat_interface_is_inside(i)) && (sw_if_index0 == i->sw_if_index)) { if (PREDICT_FALSE ((vnet_buffer (b0)->snat.flags) & SNAT_FLAG_HAIRPINNING)) { if (PREDICT_TRUE (sm->num_workers > 1)) next0 = SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH; else next0 = SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT; } break; } })); /* *INDENT-ON* */ pkts_processed += next0 != SNAT_HAIRPIN_SRC_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, NAT44_HAIRPIN_ERROR_PROCESSED, pkts_processed); return frame->n_vectors; } VLIB_NODE_FN (snat_hairpin_src_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return snat_hairpin_src_fn_inline (vm, node, frame, 0); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (snat_hairpin_src_node) = { .name = "nat44-hairpin-src", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = SNAT_HAIRPIN_SRC_N_NEXT, .next_nodes = { [SNAT_HAIRPIN_SRC_NEXT_DROP] = "error-drop", [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT] = "nat44-in2out-output", [SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT] = "interface-output", [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH] = "nat44-in2out-output-worker-handoff", }, }; /* *INDENT-ON* */ VLIB_NODE_FN (nat44_ed_hairpin_src_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return snat_hairpin_src_fn_inline (vm, node, frame, 1); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (nat44_ed_hairpin_src_node) = { .name = "nat44-ed-hairpin-src", .vector_size = sizeof (u32), .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(nat44_hairpin_error_strings), .error_strings = nat44_hairpin_error_strings, .n_next_nodes = SNAT_HAIRPIN_SRC_N_NEXT, .next_nodes = { [SNAT_HAIRPIN_SRC_NEXT_DROP] = "error-drop", [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT] = "nat44-ed-in2out-output", [SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT] = "interface-output", [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH] = "nat44-in2out-output-worker-handoff", }, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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