X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Fnat%2Fnat44-ed%2Fnat44_ed.c;h=d639392019b4cfdca563b7075ffde7100b372e27;hb=69b7599e4b061a8996205f0304232ede84cb70d4;hp=ad78dc2dd1f3f31c0eae206c814e1b2d9e2da62c;hpb=5ae454312c2ffccf47e4b8c430c81f1a3d067e67;p=vpp.git diff --git a/src/plugins/nat/nat44-ed/nat44_ed.c b/src/plugins/nat/nat44-ed/nat44_ed.c index ad78dc2dd1f..d639392019b 100644 --- a/src/plugins/nat/nat44-ed/nat44_ed.c +++ b/src/plugins/nat/nat44-ed/nat44_ed.c @@ -28,9 +28,11 @@ #include #include -#include #include #include +#include +#include +#include #include #include @@ -182,29 +184,6 @@ static void nat44_ed_db_free (); u32 nat_calc_bihash_buckets (u32 n_elts); -u8 * -format_session_kvp (u8 * s, va_list * args) -{ - clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *); - - s = format (s, "%U thread-index %llu session-index %llu", format_snat_key, - v->key, nat_value_get_thread_index (v), - nat_value_get_session_index (v)); - - return s; -} - -u8 * -format_static_mapping_kvp (u8 * s, va_list * args) -{ - clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *); - - s = format (s, "%U static-mapping-index %llu", - format_snat_key, v->key, v->value); - - return s; -} - u8 * format_ed_session_kvp (u8 * s, va_list * args) { @@ -227,70 +206,110 @@ format_ed_session_kvp (u8 * s, va_list * args) return s; } +static_always_inline int +nat44_ed_sm_i2o_add (snat_main_t *sm, snat_static_mapping_t *m, + ip4_address_t addr, u16 port, u32 fib_index, u8 proto) +{ + ASSERT (!pool_is_free (sm->static_mappings, m)); + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_i2o_kv (&kv, addr.as_u32, port, fib_index, proto, + m - sm->static_mappings); + return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/); +} + +static_always_inline int +nat44_ed_sm_i2o_del (snat_main_t *sm, ip4_address_t addr, u16 port, + u32 fib_index, u8 proto) +{ + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto); + return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/); +} + +static_always_inline int +nat44_ed_sm_o2i_add (snat_main_t *sm, snat_static_mapping_t *m, + ip4_address_t addr, u16 port, u32 fib_index, u8 proto) +{ + ASSERT (!pool_is_free (sm->static_mappings, m)); + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_o2i_kv (&kv, addr.as_u32, port, fib_index, proto, + m - sm->static_mappings); + return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/); +} + +static_always_inline int +nat44_ed_sm_o2i_del (snat_main_t *sm, ip4_address_t addr, u16 port, + u32 fib_index, u8 proto) +{ + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto); + return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/); +} + void -nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index, - u8 is_ha) +nat44_ed_free_session_data (snat_main_t *sm, snat_session_t *s, + u32 thread_index, u8 is_ha) { - per_vrf_sessions_unregister_session (s, thread_index); + per_vrf_sessions_unregister_session (s, thread_index); - if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0)) - nat_elog_warn (sm, "flow hash del failed"); + if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0)) + nat_elog_warn (sm, "flow hash del failed"); - if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0)) - nat_elog_warn (sm, "flow hash del failed"); + if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0)) + nat_elog_warn (sm, "flow hash del failed"); - if (is_fwd_bypass_session (s)) + if (na44_ed_is_fwd_bypass_session (s)) { return; } - if (is_affinity_sessions (s)) - nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, - s->nat_proto, s->out2in.port); - - if (!is_ha) - nat_syslog_nat44_sdel ( - 0, s->in2out.fib_index, &s->in2out.addr, s->in2out.port, - &s->ext_host_nat_addr, s->ext_host_nat_port, &s->out2in.addr, - s->out2in.port, &s->ext_host_addr, s->ext_host_port, s->nat_proto, - is_twice_nat_session (s)); + if (nat44_ed_is_affinity_session (s)) + nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, s->proto, + s->out2in.port); - if (snat_is_unk_proto_session (s)) - return; + if (!is_ha) + nat_syslog_nat44_sdel (0, s->in2out.fib_index, &s->in2out.addr, + s->in2out.port, &s->ext_host_nat_addr, + s->ext_host_nat_port, &s->out2in.addr, + s->out2in.port, &s->ext_host_addr, s->ext_host_port, + s->proto, nat44_ed_is_twice_nat_session (s)); if (!is_ha) { /* log NAT event */ - nat_ipfix_logging_nat44_ses_delete (thread_index, - s->in2out.addr.as_u32, - s->out2in.addr.as_u32, - s->nat_proto, - s->in2out.port, - s->out2in.port, - s->in2out.fib_index); + nat_ipfix_logging_nat44_ses_delete ( + thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto, + s->in2out.port, s->out2in.port, s->in2out.fib_index); } +} - /* Twice NAT address and port for external host */ - if (is_twice_nat_session (s)) +static int +is_snat_address_used_in_static_mapping (snat_main_t *sm, ip4_address_t addr) +{ + snat_static_mapping_t *m; + pool_foreach (m, sm->static_mappings) { - snat_free_outside_address_and_port (sm->twice_nat_addresses, - thread_index, - &s->ext_host_nat_addr, - s->ext_host_nat_port, s->nat_proto); + if (is_sm_addr_only (m->flags) || is_sm_out2in_only (m->flags) || + is_sm_identity_nat (m->flags)) + { + continue; + } + if (m->external_addr.as_u32 == addr.as_u32) + { + return 1; + } } - - if (snat_is_session_static (s)) - return; - - snat_free_outside_address_and_port (sm->addresses, thread_index, - &s->out2in.addr, s->out2in.port, - s->nat_proto); + return 0; } -void -snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index, - int is_add) +static void +nat44_ed_add_del_addr_to_fib (ip4_address_t *addr, u8 p_len, u32 sw_if_index, + int is_add) { + // Add the external NAT address to the FIB as receive entries. This ensures + // that VPP will reply to ARP for this address and we don't need to enable + // proxy ARP on the outside interface. + snat_main_t *sm = &snat_main; fib_prefix_t prefix = { .fp_len = p_len, @@ -302,42 +321,75 @@ snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index, u32 fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index); if (is_add) - fib_table_entry_update_one_path (fib_index, - &prefix, - sm->fib_src_low, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_LOCAL | - FIB_ENTRY_FLAG_EXCLUSIVE), - DPO_PROTO_IP4, - NULL, - sw_if_index, - ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); + { + fib_table_entry_update_one_path (fib_index, &prefix, sm->fib_src_low, + (FIB_ENTRY_FLAG_CONNECTED | + FIB_ENTRY_FLAG_LOCAL | + FIB_ENTRY_FLAG_EXCLUSIVE), + DPO_PROTO_IP4, NULL, sw_if_index, ~0, 1, + NULL, FIB_ROUTE_PATH_FLAG_NONE); + } else - fib_table_entry_delete (fib_index, &prefix, sm->fib_src_low); + { + fib_table_entry_delete (fib_index, &prefix, sm->fib_src_low); + } } -static int -is_snat_address_used_in_static_mapping (snat_main_t *sm, ip4_address_t addr) +static void +nat44_ed_add_del_addr_to_fib_foreach_out_if (ip4_address_t *addr, u8 is_add) { + snat_main_t *sm = &snat_main; + snat_interface_t *i; + + pool_foreach (i, sm->interfaces) + { + if (nat44_ed_is_interface_outside (i)) + { + nat44_ed_add_del_addr_to_fib (addr, 32, i->sw_if_index, is_add); + } + } + pool_foreach (i, sm->output_feature_interfaces) + { + if (nat44_ed_is_interface_outside (i)) + { + nat44_ed_add_del_addr_to_fib (addr, 32, i->sw_if_index, is_add); + } + } +} + +static_always_inline void +nat44_ed_add_del_addr_to_fib_foreach_addr (u32 sw_if_index, u8 is_add) +{ + snat_main_t *sm = &snat_main; + snat_address_t *ap; + + vec_foreach (ap, sm->addresses) + { + nat44_ed_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, is_add); + } +} + +static_always_inline void +nat44_ed_add_del_addr_to_fib_foreach_addr_only_sm (u32 sw_if_index, u8 is_add) +{ + snat_main_t *sm = &snat_main; snat_static_mapping_t *m; + pool_foreach (m, sm->static_mappings) { - if (is_sm_addr_only (m->flags) || is_sm_out2in_only (m->flags) || - is_sm_identity_nat (m->flags)) - continue; - if (m->external_addr.as_u32 == addr.as_u32) - return 1; + if (is_sm_addr_only (m->flags) && !is_sm_identity_nat (m->flags)) + { + nat44_ed_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, + is_add); + } } - return 0; } int nat44_ed_add_address (ip4_address_t *addr, u32 vrf_id, u8 twice_nat) { snat_main_t *sm = &snat_main; - vlib_thread_main_t *tm = vlib_get_thread_main (); snat_address_t *ap, *addresses; - snat_interface_t *i; addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses; @@ -374,34 +426,11 @@ nat44_ed_add_address (ip4_address_t *addr, u32 vrf_id, u8 twice_nat) FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low); } -#define _(N, i, n, s) \ - clib_memset (ap->busy_##n##_port_refcounts, 0, \ - sizeof (ap->busy_##n##_port_refcounts)); \ - ap->busy_##n##_ports = 0; \ - ap->busy_##n##_ports_per_thread = 0; \ - vec_validate_init_empty (ap->busy_##n##_ports_per_thread, \ - tm->n_vlib_mains - 1, 0); - foreach_nat_protocol -#undef _ - if (!twice_nat) { - pool_foreach (i, sm->interfaces) - { - if (!nat_interface_is_inside (i)) - { - snat_add_del_addr_to_fib (addr, 32, i->sw_if_index, 1); - break; - } - } - pool_foreach (i, sm->output_feature_interfaces) - { - if (!nat_interface_is_inside (i)) - { - snat_add_del_addr_to_fib (addr, 32, i->sw_if_index, 1); - break; - } - } + // if we don't have enabled interface we don't add address + // to fib + nat44_ed_add_del_addr_to_fib_foreach_out_if (addr, 1); } return 0; } @@ -415,7 +444,6 @@ nat44_ed_del_address (ip4_address_t addr, u8 delete_sm, u8 twice_nat) u32 *ses_to_be_removed = 0, *ses_index; snat_main_per_thread_data_t *tsm; snat_static_mapping_t *m; - snat_interface_t *i; int j; addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses; @@ -442,7 +470,8 @@ nat44_ed_del_address (ip4_address_t addr, u8 delete_sm, u8 twice_nat) { nat44_ed_del_static_mapping (m->local_addr, m->external_addr, m->local_port, m->external_port, - m->proto, m->vrf_id, ~0, m->flags); + ip_proto_to_nat_proto (m->proto), + m->vrf_id, ~0, m->flags); } } } @@ -463,52 +492,29 @@ nat44_ed_del_address (ip4_address_t addr, u8 delete_sm, u8 twice_nat) } // delete sessions using address - if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports) + vec_foreach (tsm, sm->per_thread_data) { - vec_foreach (tsm, sm->per_thread_data) + pool_foreach (ses, tsm->sessions) { - pool_foreach (ses, tsm->sessions) + if (ses->out2in.addr.as_u32 == addr.as_u32) { - if (ses->out2in.addr.as_u32 == addr.as_u32) - { - nat_free_session_data (sm, ses, tsm - sm->per_thread_data, - 0); - vec_add1 (ses_to_be_removed, ses - tsm->sessions); - } - } - vec_foreach (ses_index, ses_to_be_removed) - { - ses = pool_elt_at_index (tsm->sessions, ses_index[0]); - nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1); + nat44_ed_free_session_data (sm, ses, tsm - sm->per_thread_data, + 0); + vec_add1 (ses_to_be_removed, ses - tsm->sessions); } - vec_free (ses_to_be_removed); } + vec_foreach (ses_index, ses_to_be_removed) + { + ses = pool_elt_at_index (tsm->sessions, ses_index[0]); + nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1); + } + vec_free (ses_to_be_removed); } -#define _(N, i, n, s) vec_free (a->busy_##n##_ports_per_thread); - foreach_nat_protocol -#undef _ - if (!twice_nat) { vec_del1 (sm->addresses, j); - // delete external address from FIB - pool_foreach (i, sm->interfaces) - { - if (!nat_interface_is_inside (i)) - { - snat_add_del_addr_to_fib (&addr, 32, i->sw_if_index, 0); - break; - } - } - pool_foreach (i, sm->output_feature_interfaces) - { - if (!nat_interface_is_inside (i)) - { - snat_add_del_addr_to_fib (&addr, 32, i->sw_if_index, 0); - break; - } - } + nat44_ed_add_del_addr_to_fib_foreach_out_if (&addr, 0); } else { vec_del1 (sm->twice_nat_addresses, j); } return 0; @@ -547,18 +553,17 @@ nat_ed_static_mapping_del_sessions (snat_main_t * sm, } if (!addr_only) { - if ((s->out2in.addr.as_u32 != e_addr.as_u32) || - s->out2in.port != e_port || - s->in2out.port != l_port || - s->nat_proto != protocol) - continue; + if ((s->out2in.addr.as_u32 != e_addr.as_u32) || + s->out2in.port != e_port || s->in2out.port != l_port || + s->proto != protocol) + continue; } - if (is_lb_session (s)) + if (nat44_ed_is_lb_session (s)) continue; - if (!snat_is_session_static (s)) + if (!nat44_ed_is_session_static (s)) continue; - nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0); + nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0); vec_add1 (indexes_to_free, s - tsm->sessions); if (!addr_only) break; @@ -572,89 +577,41 @@ nat_ed_static_mapping_del_sessions (snat_main_t * sm, vec_free (indexes_to_free); } -int -nat44_ed_reserve_port (ip4_address_t addr, u16 port, nat_protocol_t proto) +static_always_inline snat_static_mapping_t * +nat44_ed_sm_lookup (snat_main_t *sm, clib_bihash_kv_16_8_t *kv) { - u32 ti = get_thread_idx_by_port (port); - snat_main_t *sm = &snat_main; - snat_address_t *a = 0; - int i; - - for (i = 0; i < vec_len (sm->addresses); i++) + clib_bihash_kv_16_8_t v; + int rc = clib_bihash_search_16_8 (&sm->flow_hash, kv, &v); + if (!rc) { - a = sm->addresses + i; - - if (a->addr.as_u32 != addr.as_u32) - continue; - - switch (proto) - { -#define _(N, j, n, s) \ - case NAT_PROTOCOL_##N: \ - if (a->busy_##n##_port_refcounts[port]) \ - goto done; \ - ++a->busy_##n##_port_refcounts[port]; \ - if (port > 1024) \ - { \ - a->busy_##n##_ports++; \ - a->busy_##n##_ports_per_thread[ti]++; \ - } \ - break; - foreach_nat_protocol -#undef _ - default : nat_elog_info (sm, "unknown protocol"); - goto done; - } - - return 0; + ASSERT (0 == ed_value_get_thread_index (&v)); + return pool_elt_at_index (sm->static_mappings, + ed_value_get_session_index (&v)); } - -done: - return 1; + return NULL; } -int -nat44_ed_free_port (ip4_address_t addr, u16 port, nat_protocol_t proto) +snat_static_mapping_t * +nat44_ed_sm_o2i_lookup (snat_main_t *sm, ip4_address_t addr, u16 port, + u32 fib_index, u8 proto) { - u32 ti = get_thread_idx_by_port (port); - snat_main_t *sm = &snat_main; - snat_address_t *a = 0; - int i; - - for (i = 0; i < vec_len (sm->addresses); i++) - { - a = sm->addresses + i; - - if (a->addr.as_u32 != addr.as_u32) - continue; - - switch (proto) - { -#define _(N, j, n, s) \ - case NAT_PROTOCOL_##N: \ - --a->busy_##n##_port_refcounts[port]; \ - if (port > 1024) \ - { \ - a->busy_##n##_ports--; \ - a->busy_##n##_ports_per_thread[ti]--; \ - } \ - break; - foreach_nat_protocol -#undef _ - default : nat_elog_info (sm, "unknown protocol"); - goto done; - } - - return 0; - } + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto); + return nat44_ed_sm_lookup (sm, &kv); +} -done: - return 1; +snat_static_mapping_t * +nat44_ed_sm_i2o_lookup (snat_main_t *sm, ip4_address_t addr, u16 port, + u32 fib_index, u8 proto) +{ + clib_bihash_kv_16_8_t kv; + nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto); + return nat44_ed_sm_lookup (sm, &kv); } void nat44_ed_add_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port, - nat_protocol_t proto, u32 vrf_id, u32 sw_if_index, + ip_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags, ip4_address_t pool_addr, u8 *tag) { snat_static_map_resolve_t *rp; @@ -674,7 +631,7 @@ nat44_ed_add_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port, int nat44_ed_get_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port, - nat_protocol_t proto, u32 vrf_id, u32 sw_if_index, + ip_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags, int *out) { snat_static_map_resolve_t *rp; @@ -724,7 +681,7 @@ nat44_ed_get_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port, int nat44_ed_del_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port, - nat_protocol_t proto, u32 vrf_id, u32 sw_if_index, + ip_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags) { snat_main_t *sm = &snat_main; @@ -757,15 +714,24 @@ nat44_ed_validate_sm_input (u32 flags) return 0; } +snat_address_t * +nat44_ed_addr_lookup (snat_main_t *sm, u32 addr) +{ + for (int i = 0; i < vec_len (sm->addresses); ++i) + { + if (sm->addresses[i].addr.as_u32 == addr) + return &sm->addresses[i]; + } + return NULL; +} + int nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, - u16 l_port, u16 e_port, nat_protocol_t proto, + u16 l_port, u16 e_port, ip_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags, ip4_address_t pool_addr, u8 *tag) { snat_main_t *sm = &snat_main; - clib_bihash_kv_8_8_t kv, value; - snat_interface_t *interface; nat44_lb_addr_port_t *local; snat_static_mapping_t *m; u32 fib_index = ~0; @@ -819,12 +785,9 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, l_addr.as_u32 = e_addr.as_u32; } - // fib index 0 - init_nat_k (&kv, e_addr, e_port, 0, proto); - - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) + m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto); + if (m) { - m = pool_elt_at_index (sm->static_mappings, value.value); if (!is_sm_identity_nat (m->flags)) { return VNET_API_ERROR_VALUE_EXIST; @@ -846,9 +809,8 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, local->fib_index = fib_table_find_or_create_and_lock ( FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low); - init_nat_kv (&kv, m->local_addr, m->local_port, local->fib_index, - m->proto, 0, m - sm->static_mappings); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1); + nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port, + local->fib_index, m->proto); return 0; } @@ -870,8 +832,7 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, // identity nat supports multiple records in local mapping if (!(is_sm_out2in_only (flags) || is_sm_identity_nat (flags))) { - init_nat_k (&kv, l_addr, l_port, fib_index, proto); - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value)) + if (nat44_ed_sm_i2o_lookup (sm, l_addr, l_port, fib_index, proto)) { return VNET_API_ERROR_VALUE_EXIST; } @@ -880,7 +841,7 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) || sm->static_mapping_only)) { - if (nat44_ed_reserve_port (e_addr, e_port, proto)) + if (!nat44_ed_addr_lookup (sm, e_addr.as_u32)) { // remove resolve record if (is_sm_switch_address (flags) && !is_sm_identity_nat (flags)) @@ -924,18 +885,21 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, { m->vrf_id = vrf_id; m->fib_index = fib_index; + + // not identity && addr only + if (is_sm_addr_only (flags)) + { + nat44_ed_add_del_addr_to_fib_foreach_out_if (&e_addr, 1); + } } if (!is_sm_out2in_only (flags)) { - init_nat_kv (&kv, m->local_addr, m->local_port, fib_index, m->proto, 0, - m - sm->static_mappings); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1); + nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port, fib_index, + m->proto); } - init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0, - m - sm->static_mappings); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1); + nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0, m->proto); if (sm->num_workers > 1) { @@ -949,40 +913,17 @@ nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, vec_add1 (m->workers, worker_index); } - if (is_sm_identity_nat (flags) || !is_sm_addr_only (flags)) - return 0; - - pool_foreach (interface, sm->interfaces) - { - if (nat_interface_is_inside (interface)) - continue; - - snat_add_del_addr_to_fib (&e_addr, 32, interface->sw_if_index, 1); - break; - } - - pool_foreach (interface, sm->output_feature_interfaces) - { - if (nat_interface_is_inside (interface)) - continue; - - snat_add_del_addr_to_fib (&e_addr, 32, interface->sw_if_index, 1); - break; - } - return 0; } int nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, - u16 l_port, u16 e_port, nat_protocol_t proto, + u16 l_port, u16 e_port, ip_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags) { snat_main_per_thread_data_t *tsm; snat_main_t *sm = &snat_main; - clib_bihash_kv_8_8_t kv, value; - snat_interface_t *interface; nat44_lb_addr_port_t *local; snat_static_mapping_t *m; u32 fib_index = ~0; @@ -1034,9 +975,9 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, } // fib index 0 - init_nat_k (&kv, e_addr, e_port, 0, proto); + m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto); - if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) + if (!m) { if (is_sm_switch_address (flags)) { @@ -1045,8 +986,6 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, return VNET_API_ERROR_NO_SUCH_ENTRY; } - m = pool_elt_at_index (sm->static_mappings, value.value); - if (is_sm_identity_nat (flags)) { u8 failure = 1; @@ -1080,7 +1019,7 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) || sm->static_mapping_only)) { - if (nat44_ed_free_port (e_addr, e_port, proto)) + if (!nat44_ed_addr_lookup (sm, e_addr.as_u32)) { return VNET_API_ERROR_INVALID_VALUE; } @@ -1088,8 +1027,7 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, if (!is_sm_out2in_only (flags)) { - init_nat_k (&kv, l_addr, l_port, fib_index, proto); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0); + nat44_ed_sm_i2o_del (sm, l_addr, l_port, fib_index, proto); } if (!sm->static_mapping_only || sm->static_mapping_connection_tracking) @@ -1107,36 +1045,20 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low); - if (pool_elts (m->locals)) - return 0; - - // fib_index 0 - init_nat_k (&kv, e_addr, e_port, 0, proto); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0); - - vec_free (m->tag); - vec_free (m->workers); - pool_put (sm->static_mappings, m); - - if (is_sm_identity_nat (flags) || !is_sm_addr_only (flags)) - return 0; - - pool_foreach (interface, sm->interfaces) + if (!pool_elts (m->locals)) { - if (nat_interface_is_inside (interface)) - continue; + // this is last record remove all required stuff + // fib_index 0 + nat44_ed_sm_o2i_del (sm, e_addr, e_port, 0, proto); - snat_add_del_addr_to_fib (&e_addr, 32, interface->sw_if_index, 0); - break; - } + vec_free (m->tag); + vec_free (m->workers); + pool_put (sm->static_mappings, m); - pool_foreach (interface, sm->output_feature_interfaces) - { - if (nat_interface_is_inside (interface)) - continue; - - snat_add_del_addr_to_fib (&e_addr, 32, interface->sw_if_index, 0); - break; + if (is_sm_addr_only (flags) && !is_sm_identity_nat (flags)) + { + nat44_ed_add_del_addr_to_fib_foreach_out_if (&e_addr, 0); + } } return 0; @@ -1144,17 +1066,17 @@ nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, int nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port, - nat_protocol_t proto, + ip_protocol_t proto, nat44_lb_addr_port_t *locals, u32 flags, u8 *tag, u32 affinity) { snat_main_t *sm = &snat_main; snat_static_mapping_t *m; - clib_bihash_kv_8_8_t kv, value; snat_address_t *a = 0; nat44_lb_addr_port_t *local; uword *bitmap = 0; + int rc = 0; int i; @@ -1163,52 +1085,40 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port, return VNET_API_ERROR_UNSUPPORTED; } - init_nat_k (&kv, e_addr, e_port, 0, proto); - if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - m = 0; - else - m = pool_elt_at_index (sm->static_mappings, value.value); + m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto); if (m) - return VNET_API_ERROR_VALUE_EXIST; + { + return VNET_API_ERROR_VALUE_EXIST; + } if (vec_len (locals) < 2) - return VNET_API_ERROR_INVALID_VALUE; + { + return VNET_API_ERROR_INVALID_VALUE; + } - /* Find external address in allocated addresses and reserve port for - address and port pair mapping when dynamic translations enabled */ if (!(sm->static_mapping_only || is_sm_out2in_only (flags))) { + /* Find external address in allocated addresses and reserve port for + address and port pair mapping when dynamic translations enabled */ for (i = 0; i < vec_len (sm->addresses); i++) { if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) { - a = sm->addresses + i; /* External port must be unused */ - switch (proto) + a = sm->addresses + i; + if (nat44_ed_sm_o2i_lookup (sm, a->addr, e_port, 0, proto)) { -#define _(N, j, n, s) \ - case NAT_PROTOCOL_##N: \ - if (a->busy_##n##_port_refcounts[e_port]) \ - return VNET_API_ERROR_INVALID_VALUE; \ - ++a->busy_##n##_port_refcounts[e_port]; \ - if (e_port > 1024) \ - { \ - a->busy_##n##_ports++; \ - a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]++; \ - } \ - break; - foreach_nat_protocol -#undef _ - default : nat_elog_info (sm, "unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; + return VNET_API_ERROR_VALUE_EXIST; } break; } } - /* External address must be allocated */ + // external address must be allocated if (!a) - return VNET_API_ERROR_NO_SUCH_ENTRY; + { + return VNET_API_ERROR_NO_SUCH_ENTRY; + } } pool_get (sm->static_mappings, m); @@ -1228,11 +1138,10 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port, else m->affinity_per_service_list_head_index = ~0; - init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0, - m - sm->static_mappings); - if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1)) + if (nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0, + m->proto)) { - nat_elog_err (sm, "static_mapping_by_external key add failed"); + nat_elog_err (sm, "sm o2i key add failed"); return VNET_API_ERROR_UNSPECIFIED; } @@ -1242,10 +1151,16 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port, FIB_PROTOCOL_IP4, locals[i].vrf_id, sm->fib_src_low); if (!is_sm_out2in_only (flags)) { - init_nat_kv (&kv, locals[i].addr, locals[i].port, - locals[i].fib_index, m->proto, 0, - m - sm->static_mappings); - clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1); + if (nat44_ed_sm_o2i_add (sm, m, e_addr, e_port, 0, proto)) + { + nat_elog_err (sm, "sm o2i key add failed"); + rc = VNET_API_ERROR_UNSPECIFIED; + // here we continue with add operation so that it can be safely + // reversed in delete path - otherwise we'd have to track what + // we've done and deal with partial cleanups and since bihash + // adds are (extremely improbable) the only points of failure, + // it's easier to just do it this way + } } locals[i].prefix = (i == 0) ? locals[i].probability : @@ -1272,73 +1187,36 @@ nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port, } } - return 0; + return rc; } int nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, - nat_protocol_t proto, u32 flags) + ip_protocol_t proto, u32 flags) { snat_main_t *sm = &snat_main; snat_static_mapping_t *m; - clib_bihash_kv_8_8_t kv, value; - snat_address_t *a = 0; nat44_lb_addr_port_t *local; snat_main_per_thread_data_t *tsm; snat_session_t *s; - int i; if (!sm->enabled) { return VNET_API_ERROR_UNSUPPORTED; } - init_nat_k (&kv, e_addr, e_port, 0, proto); - if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - m = 0; - else - m = pool_elt_at_index (sm->static_mappings, value.value); - + m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto); if (!m) return VNET_API_ERROR_NO_SUCH_ENTRY; if (!is_sm_lb (m->flags)) return VNET_API_ERROR_INVALID_VALUE; - /* Free external address port */ - if (!(sm->static_mapping_only || is_sm_out2in_only (flags))) - { - for (i = 0; i < vec_len (sm->addresses); i++) - { - if (sm->addresses[i].addr.as_u32 == e_addr.as_u32) - { - a = sm->addresses + i; - switch (proto) - { -#define _(N, j, n, s) \ - case NAT_PROTOCOL_##N: \ - --a->busy_##n##_port_refcounts[e_port]; \ - if (e_port > 1024) \ - { \ - a->busy_##n##_ports--; \ - a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]--; \ - } \ - break; - foreach_nat_protocol -#undef _ - default : nat_elog_info (sm, "unknown protocol"); - return VNET_API_ERROR_INVALID_VALUE_2; - } - break; - } - } - } - - init_nat_k (&kv, m->external_addr, m->external_port, 0, m->proto); - if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0)) + if (nat44_ed_sm_o2i_del (sm, m->external_addr, m->external_port, 0, + m->proto)) { - nat_elog_err (sm, "static_mapping_by_external key del failed"); + nat_elog_err (sm, "sm o2i key del failed"); return VNET_API_ERROR_UNSPECIFIED; } @@ -1347,11 +1225,10 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low); if (!is_sm_out2in_only (flags)) { - init_nat_k (&kv, local->addr, local->port, local->fib_index, - m->proto); - if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0)) + if (nat44_ed_sm_i2o_del (sm, local->addr, local->port, + local->fib_index, m->proto)) { - nat_elog_err (sm, "static_mapping_by_local key del failed"); + nat_elog_err (sm, "sm i2o key del failed"); return VNET_API_ERROR_UNSPECIFIED; } } @@ -1371,14 +1248,14 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, /* Delete sessions */ pool_foreach (s, tsm->sessions) { - if (!(is_lb_session (s))) + if (!(nat44_ed_is_lb_session (s))) continue; if ((s->in2out.addr.as_u32 != local->addr.as_u32) || s->in2out.port != local->port) continue; - nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0); + nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0); nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1); } } @@ -1399,12 +1276,11 @@ nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port, int nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, ip4_address_t l_addr, u16 l_port, - nat_protocol_t proto, u32 vrf_id, + ip_protocol_t proto, u32 vrf_id, u8 probability, u8 is_add) { snat_main_t *sm = &snat_main; snat_static_mapping_t *m = 0; - clib_bihash_kv_8_8_t kv, value; nat44_lb_addr_port_t *local, *prev_local, *match_local = 0; snat_main_per_thread_data_t *tsm; snat_session_t *s; @@ -1417,15 +1293,17 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, return VNET_API_ERROR_UNSUPPORTED; } - init_nat_k (&kv, e_addr, e_port, 0, proto); - if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - m = pool_elt_at_index (sm->static_mappings, value.value); + m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto); if (!m) - return VNET_API_ERROR_NO_SUCH_ENTRY; + { + return VNET_API_ERROR_NO_SUCH_ENTRY; + } if (!is_sm_lb (m->flags)) - return VNET_API_ERROR_INVALID_VALUE; + { + return VNET_API_ERROR_INVALID_VALUE; + } pool_foreach (local, m->locals) { @@ -1440,7 +1318,9 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, if (is_add) { if (match_local) - return VNET_API_ERROR_VALUE_EXIST; + { + return VNET_API_ERROR_VALUE_EXIST; + } pool_get (m->locals, local); clib_memset (local, 0, sizeof (*local)); @@ -1454,10 +1334,13 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, if (!is_sm_out2in_only (m->flags)) { - init_nat_kv (&kv, l_addr, l_port, local->fib_index, proto, 0, - m - sm->static_mappings); - if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1)) - nat_elog_err (sm, "static_mapping_by_local key add failed"); + if (nat44_ed_sm_i2o_add (sm, m, l_addr, l_port, local->fib_index, + proto)) + { + nat_elog_err (sm, "sm i2o key add failed"); + pool_put (m->locals, local); + return VNET_API_ERROR_UNSPECIFIED; + } } } else @@ -1473,9 +1356,9 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, if (!is_sm_out2in_only (m->flags)) { - init_nat_k (&kv, l_addr, l_port, match_local->fib_index, proto); - if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0)) - nat_elog_err (sm, "static_mapping_by_local key del failed"); + if (nat44_ed_sm_i2o_del (sm, l_addr, l_port, match_local->fib_index, + proto)) + nat_elog_err (sm, "sm i2o key del failed"); } if (sm->num_workers > 1) @@ -1492,15 +1375,15 @@ nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port, /* Delete sessions */ pool_foreach (s, tsm->sessions) { - if (!(is_lb_session (s))) - continue; + if (!(nat44_ed_is_lb_session (s))) + continue; - if ((s->in2out.addr.as_u32 != match_local->addr.as_u32) || - s->in2out.port != match_local->port) - continue; + if ((s->in2out.addr.as_u32 != match_local->addr.as_u32) || + s->in2out.port != match_local->port) + continue; - nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0); - nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1); + nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0); + nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1); } pool_put (m->locals, match_local); @@ -1633,9 +1516,7 @@ nat44_ed_add_interface (u32 sw_if_index, u8 is_inside) snat_main_t *sm = &snat_main; nat_outside_fib_t *outside_fib; - snat_static_mapping_t *m; snat_interface_t *i; - snat_address_t *ap; u32 fib_index; int rv; @@ -1654,8 +1535,8 @@ nat44_ed_add_interface (u32 sw_if_index, u8 is_inside) i = nat44_ed_get_interface (sm->interfaces, sw_if_index); if (i) { - if ((nat_interface_is_inside (i) && is_inside) || - (nat_interface_is_outside (i) && !is_inside)) + if ((nat44_ed_is_interface_inside (i) && is_inside) || + (nat44_ed_is_interface_outside (i) && !is_inside)) { return 0; } @@ -1725,19 +1606,8 @@ nat44_ed_add_interface (u32 sw_if_index, u8 is_inside) outside_fib->refcount = 1; } - vec_foreach (ap, sm->addresses) - { - snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 1); - } - pool_foreach (m, sm->static_mappings) - { - if (!(is_sm_addr_only (m->flags)) || - (m->local_addr.as_u32 == m->external_addr.as_u32)) - { - continue; - } - snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 1); - } + nat44_ed_add_del_addr_to_fib_foreach_addr (sw_if_index, 1); + nat44_ed_add_del_addr_to_fib_foreach_addr_only_sm (sw_if_index, 1); } else { @@ -1754,9 +1624,7 @@ nat44_ed_del_interface (u32 sw_if_index, u8 is_inside) snat_main_t *sm = &snat_main; nat_outside_fib_t *outside_fib; - snat_static_mapping_t *m; snat_interface_t *i; - snat_address_t *ap; u32 fib_index; int rv; @@ -1773,7 +1641,7 @@ nat44_ed_del_interface (u32 sw_if_index, u8 is_inside) return VNET_API_ERROR_NO_SUCH_ENTRY; } - if (nat_interface_is_inside (i) && nat_interface_is_outside (i)) + if (nat44_ed_is_interface_inside (i) && nat44_ed_is_interface_outside (i)) { if (sm->num_workers > 1) { @@ -1847,20 +1715,8 @@ nat44_ed_del_interface (u32 sw_if_index, u8 is_inside) } } - vec_foreach (ap, sm->addresses) - { - snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 0); - } - - pool_foreach (m, sm->static_mappings) - { - if (!(is_sm_addr_only (m->flags)) || - (m->local_addr.as_u32 == m->external_addr.as_u32)) - { - continue; - } - snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 0); - } + nat44_ed_add_del_addr_to_fib_foreach_addr (sw_if_index, 0); + nat44_ed_add_del_addr_to_fib_foreach_addr_only_sm (sw_if_index, 0); } return 0; @@ -1872,9 +1728,7 @@ nat44_ed_add_output_interface (u32 sw_if_index) snat_main_t *sm = &snat_main; nat_outside_fib_t *outside_fib; - snat_static_mapping_t *m; snat_interface_t *i; - snat_address_t *ap; u32 fib_index; int rv; @@ -1960,20 +1814,8 @@ nat44_ed_add_output_interface (u32 sw_if_index) outside_fib->refcount = 1; } - vec_foreach (ap, sm->addresses) - { - snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 1); - } - - pool_foreach (m, sm->static_mappings) - { - if (!((is_sm_addr_only (m->flags))) || - (m->local_addr.as_u32 == m->external_addr.as_u32)) - { - continue; - } - snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 1); - } + nat44_ed_add_del_addr_to_fib_foreach_addr (sw_if_index, 1); + nat44_ed_add_del_addr_to_fib_foreach_addr_only_sm (sw_if_index, 1); return 0; } @@ -1984,9 +1826,7 @@ nat44_ed_del_output_interface (u32 sw_if_index) snat_main_t *sm = &snat_main; nat_outside_fib_t *outside_fib; - snat_static_mapping_t *m; snat_interface_t *i; - snat_address_t *ap; u32 fib_index; int rv; @@ -2060,20 +1900,8 @@ nat44_ed_del_output_interface (u32 sw_if_index) } } - vec_foreach (ap, sm->addresses) - { - snat_add_del_addr_to_fib (&ap->addr, 32, sw_if_index, 0); - } - - pool_foreach (m, sm->static_mappings) - { - if (!((is_sm_addr_only (m->flags))) || - (m->local_addr.as_u32 == m->external_addr.as_u32)) - { - continue; - } - snat_add_del_addr_to_fib (&m->external_addr, 32, sw_if_index, 0); - } + nat44_ed_add_del_addr_to_fib_foreach_addr (sw_if_index, 0); + nat44_ed_add_del_addr_to_fib_foreach_addr_only_sm (sw_if_index, 0); return 0; } @@ -2133,7 +1961,7 @@ nat44_ed_update_outside_fib_cb (ip4_main_t *im, uword opaque, u32 sw_if_index, { if (i->sw_if_index == sw_if_index) { - if (!(nat_interface_is_outside (i))) + if (!(nat44_ed_is_interface_outside (i))) return; match = 1; } @@ -2143,7 +1971,7 @@ nat44_ed_update_outside_fib_cb (ip4_main_t *im, uword opaque, u32 sw_if_index, { if (i->sw_if_index == sw_if_index) { - if (!(nat_interface_is_outside (i))) + if (!(nat44_ed_is_interface_outside (i))) return; match = 1; } @@ -2189,7 +2017,7 @@ static void nat44_ed_add_del_interface_address_cb ( ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 if_address_index, u32 is_delete); -static void nat44_ed_add_del_sm_addr_only_cb ( +static void nat44_ed_add_del_static_mapping_addr_only_cb ( ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 if_address_index, u32 is_delete); @@ -2213,8 +2041,8 @@ test_key_calc_split () u32 thread_index = 3000000001; u32 session_index = 3000000221; clib_bihash_kv_16_8_t kv; - init_ed_kv (&kv, l_addr, l_port, r_addr, r_port, fib_index, proto, - thread_index, session_index); + init_ed_kv (&kv, l_addr.as_u32, l_port, r_addr.as_u32, r_port, fib_index, + proto, thread_index, session_index); ip4_address_t l_addr2; ip4_address_t r_addr2; clib_memset (&l_addr2, 0, sizeof (l_addr2)); @@ -2233,16 +2061,6 @@ test_key_calc_split () ASSERT (fib_index == fib_index2); ASSERT (thread_index == ed_value_get_thread_index (&kv)); ASSERT (session_index == ed_value_get_session_index (&kv)); - - fib_index = 7001; - proto = 5; - nat_protocol_t proto3 = ~0; - u64 key = calc_nat_key (l_addr, l_port, fib_index, proto); - split_nat_key (key, &l_addr2, &l_port2, &fib_index2, &proto3); - ASSERT (l_addr.as_u32 == l_addr2.as_u32); - ASSERT (l_port == l_port2); - ASSERT (proto == proto3); - ASSERT (fib_index == fib_index2); } static clib_error_t * @@ -2388,7 +2206,7 @@ nat_init (vlib_main_t * vm) /* callbacks to call when interface address changes. */ cbi.function = nat44_ed_add_del_interface_address_cb; vec_add1 (sm->ip4_main->add_del_interface_address_callbacks, cbi); - cbi.function = nat44_ed_add_del_sm_addr_only_cb; + cbi.function = nat44_ed_add_del_static_mapping_addr_only_cb; vec_add1 (sm->ip4_main->add_del_interface_address_callbacks, cbi); /* callbacks to call when interface to table biding changes */ @@ -2491,14 +2309,6 @@ nat44_plugin_enable (nat44_config_t c) void nat44_addresses_free (snat_address_t ** addresses) { - snat_address_t *ap; - vec_foreach (ap, *addresses) - { - #define _(N, i, n, s) \ - vec_free (ap->busy_##n##_ports_per_thread); - foreach_nat_protocol - #undef _ - } vec_free (*addresses); *addresses = 0; } @@ -2515,11 +2325,11 @@ nat44_plugin_disable () pool = pool_dup (sm->interfaces); pool_foreach (i, pool) { - if (nat_interface_is_inside (i)) + if (nat44_ed_is_interface_inside (i)) { error = nat44_ed_del_interface (i->sw_if_index, 1); } - if (nat_interface_is_outside (i)) + if (nat44_ed_is_interface_outside (i)) { error = nat44_ed_del_interface (i->sw_if_index, 0); } @@ -2590,7 +2400,7 @@ nat44_ed_forwarding_enable_disable (u8 is_enable) { pool_foreach (s, tsm->sessions) { - if (is_fwd_bypass_session (s)) + if (na44_ed_is_fwd_bypass_session (s)) { vec_add1 (ses_to_be_removed, s - tsm->sessions); } @@ -2598,7 +2408,7 @@ nat44_ed_forwarding_enable_disable (u8 is_enable) vec_foreach (ses_index, ses_to_be_removed) { s = pool_elt_at_index (tsm->sessions, ses_index[0]); - nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0); + nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0); nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1); } @@ -2606,88 +2416,88 @@ nat44_ed_forwarding_enable_disable (u8 is_enable) } } -void -snat_free_outside_address_and_port (snat_address_t *addresses, - u32 thread_index, ip4_address_t *addr, - u16 port, nat_protocol_t protocol) +static_always_inline snat_static_mapping_t * +nat44_ed_sm_match (snat_main_t *sm, ip4_address_t match_addr, u16 match_port, + u32 match_fib_index, ip_protocol_t match_protocol, + int by_external) { - snat_main_t *sm = &snat_main; - snat_address_t *a; - u32 address_index; - u16 port_host_byte_order = clib_net_to_host_u16 (port); - - for (address_index = 0; address_index < vec_len (addresses); - address_index++) + snat_static_mapping_t *m; + if (!by_external) { - if (addresses[address_index].addr.as_u32 == addr->as_u32) - break; - } + m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port, match_fib_index, + match_protocol); + if (m) + return m; - ASSERT (address_index < vec_len (addresses)); + /* Try address only mapping */ + m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, match_fib_index, 0); + if (m) + return m; + + if (sm->inside_fib_index != match_fib_index) + { + m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port, + sm->inside_fib_index, match_protocol); + if (m) + return m; - a = addresses + address_index; + /* Try address only mapping */ + m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->inside_fib_index, + 0); + if (m) + return m; + } + if (sm->outside_fib_index != match_fib_index) + { + m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port, + sm->outside_fib_index, match_protocol); + if (m) + return m; - switch (protocol) + /* Try address only mapping */ + m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->outside_fib_index, + 0); + if (m) + return m; + } + } + else { -#define _(N, i, n, s) \ - case NAT_PROTOCOL_##N: \ - ASSERT (a->busy_##n##_port_refcounts[port_host_byte_order] >= 1); \ - --a->busy_##n##_port_refcounts[port_host_byte_order]; \ - a->busy_##n##_ports--; \ - a->busy_##n##_ports_per_thread[thread_index]--; \ - break; - foreach_nat_protocol -#undef _ - default : nat_elog_info (sm, "unknown protocol"); - return; + m = + nat44_ed_sm_o2i_lookup (sm, match_addr, match_port, 0, match_protocol); + if (m) + return m; + + /* Try address only mapping */ + m = nat44_ed_sm_o2i_lookup (sm, match_addr, 0, 0, 0); + if (m) + return m; } + return 0; } int snat_static_mapping_match (vlib_main_t *vm, snat_main_t *sm, ip4_address_t match_addr, u16 match_port, - u32 match_fib_index, nat_protocol_t match_protocol, + u32 match_fib_index, ip_protocol_t match_protocol, ip4_address_t *mapping_addr, u16 *mapping_port, - u32 *mapping_fib_index, u8 by_external, + u32 *mapping_fib_index, int by_external, u8 *is_addr_only, twice_nat_type_t *twice_nat, lb_nat_type_t *lb, ip4_address_t *ext_host_addr, u8 *is_identity_nat, snat_static_mapping_t **out) { - clib_bihash_kv_8_8_t kv, value; - clib_bihash_8_8_t *mapping_hash; snat_static_mapping_t *m; u32 rand, lo = 0, hi, mid, *tmp = 0, i; nat44_lb_addr_port_t *local; u8 backend_index; - if (!by_external) - { - mapping_hash = &sm->static_mapping_by_local; - init_nat_k (&kv, match_addr, match_port, match_fib_index, - match_protocol); - if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) - { - /* Try address only mapping */ - init_nat_k (&kv, match_addr, 0, match_fib_index, 0); - if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) - return 1; - } - } - else + m = nat44_ed_sm_match (sm, match_addr, match_port, match_fib_index, + match_protocol, by_external); + if (!m) { - mapping_hash = &sm->static_mapping_by_external; - init_nat_k (&kv, match_addr, match_port, 0, match_protocol); - if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) - { - /* Try address only mapping */ - init_nat_k (&kv, match_addr, 0, 0, 0); - if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) - return 1; - } + return 1; } - m = pool_elt_at_index (sm->static_mappings, value.value); - if (by_external) { if (is_sm_lb (m->flags)) @@ -2854,9 +2664,33 @@ nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip, } } - init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port, - ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port, - fib_index, ip->protocol); + if (PREDICT_FALSE (ip->protocol == IP_PROTOCOL_ICMP)) + { + ip4_address_t lookup_saddr, lookup_daddr; + u16 lookup_sport, lookup_dport; + u8 lookup_protocol; + + if (!nat_get_icmp_session_lookup_values ( + b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr, + &lookup_dport, &lookup_protocol)) + { + init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport, + lookup_daddr.as_u32, lookup_dport, rx_fib_index, + lookup_protocol); + if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)) + { + next_worker_index = ed_value_get_thread_index (&value16); + vnet_buffer2 (b)->nat.cached_session_index = + ed_value_get_session_index (&value16); + goto out; + } + } + } + + init_ed_k (&kv16, ip->src_address.as_u32, + vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32, + vnet_buffer (b)->ip.reass.l4_dst_port, fib_index, + ip->protocol); if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)) { @@ -2867,9 +2701,10 @@ nat44_ed_get_in2out_worker_index (vlib_buffer_t *b, ip4_header_t *ip, } // dst NAT - init_ed_k (&kv16, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port, - ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port, - rx_fib_index, ip->protocol); + init_ed_k (&kv16, ip->dst_address.as_u32, + vnet_buffer (b)->ip.reass.l4_dst_port, ip->src_address.as_u32, + vnet_buffer (b)->ip.reass.l4_src_port, rx_fib_index, + ip->protocol); if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)) { next_worker_index = ed_value_get_thread_index (&value16); @@ -2911,17 +2746,16 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, u32 rx_fib_index, u8 is_output) { snat_main_t *sm = &snat_main; - clib_bihash_kv_8_8_t kv, value; clib_bihash_kv_16_8_t kv16, value16; - u32 proto, next_worker_index = 0; + u8 proto, next_worker_index = 0; u16 port; snat_static_mapping_t *m; u32 hash; - proto = ip_proto_to_nat_proto (ip->protocol); + proto = ip->protocol; - if (PREDICT_FALSE (proto == NAT_PROTOCOL_ICMP)) + if (PREDICT_FALSE (IP_PROTOCOL_ICMP == proto)) { ip4_address_t lookup_saddr, lookup_daddr; u16 lookup_sport, lookup_dport; @@ -2930,8 +2764,9 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr, &lookup_dport, &lookup_protocol)) { - init_ed_k (&kv16, lookup_saddr, lookup_sport, lookup_daddr, - lookup_dport, rx_fib_index, lookup_protocol); + init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport, + lookup_daddr.as_u32, lookup_dport, rx_fib_index, + lookup_protocol); if (PREDICT_TRUE ( !clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))) { @@ -2945,9 +2780,10 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, } } - init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port, - ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port, - rx_fib_index, ip->protocol); + init_ed_k (&kv16, ip->src_address.as_u32, + vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32, + vnet_buffer (b)->ip.reass.l4_dst_port, rx_fib_index, + ip->protocol); if (PREDICT_TRUE ( !clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))) @@ -2965,18 +2801,18 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, /* first try static mappings without port */ if (PREDICT_FALSE (pool_elts (sm->static_mappings))) { - init_nat_k (&kv, ip->dst_address, 0, 0, 0); - if (!clib_bihash_search_8_8 - (&sm->static_mapping_by_external, &kv, &value)) + m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, 0, 0, proto); + if (m) { - m = pool_elt_at_index (sm->static_mappings, value.value); - next_worker_index = m->workers[0]; - goto done; + { + next_worker_index = m->workers[0]; + goto done; + } } } /* unknown protocol */ - if (PREDICT_FALSE (proto == NAT_PROTOCOL_OTHER)) + if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto))) { /* use current thread */ next_worker_index = vlib_get_thread_index (); @@ -2997,17 +2833,18 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, { /* if error message, then it's not fragmented and we can access it */ ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1); - proto = ip_proto_to_nat_proto (inner_ip->protocol); + proto = inner_ip->protocol; void *l4_header = ip4_next_header (inner_ip); switch (proto) { - case NAT_PROTOCOL_ICMP: + case IP_PROTOCOL_ICMP: icmp = (icmp46_header_t *) l4_header; echo = (icmp_echo_header_t *) (icmp + 1); port = echo->identifier; break; - case NAT_PROTOCOL_UDP: - case NAT_PROTOCOL_TCP: + case IP_PROTOCOL_UDP: + /* breakthrough */ + case IP_PROTOCOL_TCP: port = ((tcp_udp_header_t *) l4_header)->src_port; break; default: @@ -3020,11 +2857,9 @@ nat44_ed_get_out2in_worker_index (vlib_buffer_t *b, ip4_header_t *ip, /* try static mappings with port */ if (PREDICT_FALSE (pool_elts (sm->static_mappings))) { - init_nat_k (&kv, ip->dst_address, port, 0, proto); - if (!clib_bihash_search_8_8 - (&sm->static_mapping_by_external, &kv, &value)) + m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, port, 0, proto); + if (m) { - m = pool_elt_at_index (sm->static_mappings, value.value); if (!is_sm_lb (m->flags)) { next_worker_index = m->workers[0]; @@ -3154,23 +2989,9 @@ nat44_ed_db_init (u32 translations, u32 translation_buckets) { snat_main_t *sm = &snat_main; snat_main_per_thread_data_t *tsm; - u32 static_mapping_buckets = 1024; - u32 static_mapping_memory_size = 64 << 20; reinit_ed_flow_hash (); - clib_bihash_init_8_8 (&sm->static_mapping_by_local, - "static_mapping_by_local", static_mapping_buckets, - static_mapping_memory_size); - clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local, - format_static_mapping_kvp); - - clib_bihash_init_8_8 (&sm->static_mapping_by_external, - "static_mapping_by_external", static_mapping_buckets, - static_mapping_memory_size); - clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external, - format_static_mapping_kvp); - if (sm->pat) { vec_foreach (tsm, sm->per_thread_data) @@ -3197,8 +3018,6 @@ nat44_ed_db_free () pool_free (sm->static_mappings); clib_bihash_free_16_8 (&sm->flow_hash); - clib_bihash_free_8_8 (&sm->static_mapping_by_local); - clib_bihash_free_8_8 (&sm->static_mapping_by_external); if (sm->pat) { @@ -3231,59 +3050,43 @@ nat44_ed_sessions_clear () } static void -nat44_ed_add_del_sm_addr_only_cb (ip4_main_t *im, uword opaque, - u32 sw_if_index, ip4_address_t *address, - u32 address_length, u32 if_address_index, - u32 is_delete) +nat44_ed_add_del_static_mapping_addr_only_cb ( + ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, + u32 address_length, u32 if_address_index, u32 is_delete) { - clib_bihash_kv_8_8_t kv, value; snat_static_map_resolve_t *rp; snat_main_t *sm = &snat_main; snat_static_mapping_t *m; - ip4_address_t l_addr; - int i, rv = 0; + int i, rv = 0, match = 0; if (!sm->enabled) - return; + { + return; + } + // find first addr_only resolve record by sw_if_index for (i = 0; i < vec_len (sm->to_resolve); i++) { rp = sm->to_resolve + i; if (rp->addr_only && rp->sw_if_index == sw_if_index) { - goto match; + match = 1; + break; } } - return; - -match: - init_nat_k (&kv, *address, rp->addr_only ? 0 : rp->e_port, - sm->outside_fib_index, rp->addr_only ? 0 : rp->proto); - - if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) - { - m = 0; - } - else + if (!match) { - m = pool_elt_at_index (sm->static_mappings, value.value); + return; } - // Indetity mapping - if (rp->l_addr.as_u32 == 0) - { - l_addr.as_u32 = address[0].as_u32; - } - else - { - l_addr.as_u32 = rp->l_addr.as_u32; - } + m = nat44_ed_sm_o2i_lookup (sm, *address, rp->addr_only ? 0 : rp->e_port, 0, + rp->proto); if (is_delete) { if (m) { - rv = nat44_ed_del_static_mapping (l_addr, address[0], rp->l_port, + rv = nat44_ed_del_static_mapping (rp->l_addr, address[0], rp->l_port, rp->e_port, rp->proto, rp->vrf_id, ~0, rp->flags); } @@ -3293,10 +3096,10 @@ match: if (!m) { rv = nat44_ed_add_static_mapping ( - l_addr, address[0], rp->l_port, rp->e_port, rp->proto, rp->vrf_id, - ~0, rp->flags, rp->pool_addr, rp->tag); + rp->l_addr, address[0], rp->l_port, rp->e_port, rp->proto, + rp->vrf_id, ~0, rp->flags, rp->pool_addr, rp->tag); } - // else don't trip over lease renewal, static config + // else: don't trip over lease renewal, static config } if (rv) { @@ -3305,6 +3108,20 @@ match: } } +static_always_inline int +is_sw_if_index_reg_for_auto_resolve (u32 *sw_if_indices, u32 sw_if_index) +{ + u32 *i; + vec_foreach (i, sw_if_indices) + { + if (*i == sw_if_index) + { + return 1; + } + } + return 0; +} + static void nat44_ed_add_del_interface_address_cb (ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, @@ -3313,61 +3130,55 @@ nat44_ed_add_del_interface_address_cb (ip4_main_t *im, uword opaque, { snat_main_t *sm = &snat_main; snat_static_map_resolve_t *rp; - ip4_address_t l_addr; - int i, j; - int rv; - u8 twice_nat = 0; snat_address_t *addresses = sm->addresses; + u8 twice_nat = 0; + int rv, i; if (!sm->enabled) { return; } - for (i = 0; i < vec_len (sm->auto_add_sw_if_indices); i++) - { - if (sw_if_index == sm->auto_add_sw_if_indices[i]) - goto match; - } - - for (i = 0; i < vec_len (sm->auto_add_sw_if_indices_twice_nat); i++) + if (!is_sw_if_index_reg_for_auto_resolve (sm->auto_add_sw_if_indices, + sw_if_index)) { - twice_nat = 1; - addresses = sm->twice_nat_addresses; - if (sw_if_index == sm->auto_add_sw_if_indices_twice_nat[i]) - goto match; + if (!is_sw_if_index_reg_for_auto_resolve ( + sm->auto_add_sw_if_indices_twice_nat, sw_if_index)) + { + return; + } + else + { + addresses = sm->twice_nat_addresses; + twice_nat = 1; + } } - return; - -match: if (!is_delete) { - /* Don't trip over lease renewal, static config */ - for (j = 0; j < vec_len (addresses); j++) - if (addresses[j].addr.as_u32 == address->as_u32) - return; + // don't trip over lease renewal, static config + for (i = 0; i < vec_len (addresses); i++) + { + if (addresses[i].addr.as_u32 == address->as_u32) + { + return; + } + } (void) nat44_ed_add_address (address, ~0, twice_nat); - /* Scan static map resolution vector */ - for (j = 0; j < vec_len (sm->to_resolve); j++) + + // scan static mapping switch address resolution record vector + for (i = 0; i < vec_len (sm->to_resolve); i++) { - rp = sm->to_resolve + j; + rp = sm->to_resolve + i; if (rp->addr_only) - continue; - /* On this interface? */ + { + continue; + } if (rp->sw_if_index == sw_if_index) { - // TODO: remove if not needed (handled by function) - /* Indetity mapping? */ - if (rp->l_addr.as_u32 == 0) - l_addr.as_u32 = address[0].as_u32; - else - l_addr.as_u32 = rp->l_addr.as_u32; - - /* Add the static mapping */ rv = nat44_ed_add_static_mapping ( - l_addr, address[0], rp->l_port, rp->e_port, rp->proto, + rp->l_addr, address[0], rp->l_port, rp->e_port, rp->proto, rp->vrf_id, ~0, rp->flags, rp->pool_addr, rp->tag); if (rv) { @@ -3376,7 +3187,6 @@ match: } } } - return; } else { @@ -3513,7 +3323,8 @@ nat44_ed_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port, else tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); - init_ed_k (&kv, *addr, port, *eh_addr, eh_port, fib_index, proto); + init_ed_k (&kv, addr->as_u32, port, eh_addr->as_u32, eh_port, fib_index, + proto); if (clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value)) { return VNET_API_ERROR_NO_SUCH_ENTRY; @@ -3522,7 +3333,7 @@ nat44_ed_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port, if (pool_is_free_index (tsm->sessions, ed_value_get_session_index (&value))) return VNET_API_ERROR_UNSPECIFIED; s = pool_elt_at_index (tsm->sessions, ed_value_get_session_index (&value)); - nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0); + nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0); nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1); return 0; } @@ -3628,13 +3439,13 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, static_always_inline void nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, - nat_6t_flow_t *f, nat_protocol_t proto, + nat_6t_flow_t *f, ip_protocol_t proto, int is_icmp_inner_ip4, int skip_saddr_rewrite) { udp_header_t *udp = ip4_next_header (ip); tcp_header_t *tcp = (tcp_header_t *) udp; - if ((NAT_PROTOCOL_TCP == proto || NAT_PROTOCOL_UDP == proto) && + if ((IP_PROTOCOL_TCP == proto || IP_PROTOCOL_UDP == proto) && !vnet_buffer (b)->ip.reass.is_non_first_fragment) { if (!is_icmp_inner_ip4) @@ -3652,7 +3463,7 @@ nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, udp->dst_port = f->rewrite.sport; } - if (NAT_PROTOCOL_TCP == proto) + if (IP_PROTOCOL_TCP == proto) { ip_csum_t tcp_sum = tcp->checksum; tcp_sum = ip_csum_sub_even (tcp_sum, f->l3_csum_delta); @@ -3660,7 +3471,7 @@ nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, mss_clamping (sm->mss_clamping, tcp, &tcp_sum); tcp->checksum = ip_csum_fold (tcp_sum); } - else if (proto == NAT_PROTOCOL_UDP && udp->checksum) + else if (IP_PROTOCOL_UDP == proto && udp->checksum) { ip_csum_t udp_sum = udp->checksum; udp_sum = ip_csum_sub_even (udp_sum, f->l3_csum_delta); @@ -3758,8 +3569,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, return NAT_ED_TRNSL_ERR_INNER_IP_CORRUPT; } - nat_protocol_t inner_proto = - ip_proto_to_nat_proto (inner_ip->protocol); + ip_protocol_t inner_proto = inner_ip->protocol; ip_csum_t old_icmp_sum = icmp->checksum; ip_csum_t old_inner_ip_sum = inner_ip->checksum; @@ -3771,7 +3581,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, switch (inner_proto) { - case NAT_PROTOCOL_UDP: + case IP_PROTOCOL_UDP: udp = (udp_header_t *) (inner_ip + 1); if (!it_fits (vm, b, udp, sizeof (*udp))) { @@ -3792,7 +3602,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, new_icmp_sum = ip_csum_fold (new_icmp_sum); icmp->checksum = new_icmp_sum; break; - case NAT_PROTOCOL_TCP: + case IP_PROTOCOL_TCP: tcp = (tcp_header_t *) (inner_ip + 1); if (!it_fits (vm, b, tcp, sizeof (*tcp))) { @@ -3813,7 +3623,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, new_icmp_sum = ip_csum_fold (new_icmp_sum); icmp->checksum = new_icmp_sum; break; - case NAT_PROTOCOL_ICMP: + case IP_PROTOCOL_ICMP: if (f->ops & NAT_FLOW_OP_ICMP_ID_REWRITE) { icmp46_header_t *inner_icmp = ip4_next_header (inner_ip); @@ -3852,7 +3662,7 @@ nat_6t_flow_icmp_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, static_always_inline nat_translation_error_e nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, nat_6t_flow_t *f, - nat_protocol_t proto, int is_output_feature, + ip_protocol_t proto, int is_output_feature, int is_i2o) { if (!is_output_feature && f->ops & NAT_FLOW_OP_TXFIB_REWRITE) @@ -3860,7 +3670,7 @@ nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, vnet_buffer (b)->sw_if_index[VLIB_TX] = f->rewrite.fib_index; } - if (NAT_PROTOCOL_ICMP == proto) + if (IP_PROTOCOL_ICMP == proto) { if (ip->src_address.as_u32 != f->rewrite.saddr.as_u32) { @@ -3888,7 +3698,7 @@ nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, nat_translation_error_e nat_6t_flow_buf_translate_i2o (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, - nat_6t_flow_t *f, nat_protocol_t proto, + nat_6t_flow_t *f, ip_protocol_t proto, int is_output_feature) { return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature, @@ -3898,7 +3708,7 @@ nat_6t_flow_buf_translate_i2o (vlib_main_t *vm, snat_main_t *sm, nat_translation_error_e nat_6t_flow_buf_translate_o2i (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, - nat_6t_flow_t *f, nat_protocol_t proto, + nat_6t_flow_t *f, ip_protocol_t proto, int is_output_feature) { return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature, @@ -4008,6 +3818,81 @@ format_nat_6t_flow (u8 *s, va_list *args) return s; } +static inline void +nat_syslog_nat44_sess (u32 ssubix, u32 sfibix, ip4_address_t *isaddr, + u16 isport, ip4_address_t *xsaddr, u16 xsport, + ip4_address_t *idaddr, u16 idport, + ip4_address_t *xdaddr, u16 xdport, u8 proto, u8 is_add, + u8 is_twicenat) +{ + syslog_msg_t syslog_msg; + fib_table_t *fib; + + if (!syslog_is_enabled ()) + return; + + if (syslog_severity_filter_block (SADD_SDEL_SEVERITY)) + return; + + fib = fib_table_get (sfibix, FIB_PROTOCOL_IP4); + + syslog_msg_init (&syslog_msg, NAT_FACILITY, SADD_SDEL_SEVERITY, NAT_APPNAME, + is_add ? SADD_MSGID : SDEL_MSGID); + + syslog_msg_sd_init (&syslog_msg, NSESS_SDID); + syslog_msg_add_sd_param (&syslog_msg, SSUBIX_SDPARAM_NAME, "%d", ssubix); + syslog_msg_add_sd_param (&syslog_msg, SVLAN_SDPARAM_NAME, "%d", + fib->ft_table_id); + syslog_msg_add_sd_param (&syslog_msg, IATYP_SDPARAM_NAME, IATYP_IPV4); + syslog_msg_add_sd_param (&syslog_msg, ISADDR_SDPARAM_NAME, "%U", + format_ip4_address, isaddr); + syslog_msg_add_sd_param (&syslog_msg, ISPORT_SDPARAM_NAME, "%d", + clib_net_to_host_u16 (isport)); + syslog_msg_add_sd_param (&syslog_msg, XATYP_SDPARAM_NAME, IATYP_IPV4); + syslog_msg_add_sd_param (&syslog_msg, XSADDR_SDPARAM_NAME, "%U", + format_ip4_address, xsaddr); + syslog_msg_add_sd_param (&syslog_msg, XSPORT_SDPARAM_NAME, "%d", + clib_net_to_host_u16 (xsport)); + syslog_msg_add_sd_param (&syslog_msg, PROTO_SDPARAM_NAME, "%d", proto); + syslog_msg_add_sd_param (&syslog_msg, XDADDR_SDPARAM_NAME, "%U", + format_ip4_address, xdaddr); + syslog_msg_add_sd_param (&syslog_msg, XDPORT_SDPARAM_NAME, "%d", + clib_net_to_host_u16 (xdport)); + if (is_twicenat) + { + syslog_msg_add_sd_param (&syslog_msg, IDADDR_SDPARAM_NAME, "%U", + format_ip4_address, idaddr); + syslog_msg_add_sd_param (&syslog_msg, IDPORT_SDPARAM_NAME, "%d", + clib_net_to_host_u16 (idport)); + } + + syslog_msg_send (&syslog_msg); +} + +void +nat_syslog_nat44_sadd (u32 ssubix, u32 sfibix, ip4_address_t *isaddr, + u16 isport, ip4_address_t *idaddr, u16 idport, + ip4_address_t *xsaddr, u16 xsport, + ip4_address_t *xdaddr, u16 xdport, u8 proto, + u8 is_twicenat) +{ + nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport, + idaddr, idport, xdaddr, xdport, proto, 1, + is_twicenat); +} + +void +nat_syslog_nat44_sdel (u32 ssubix, u32 sfibix, ip4_address_t *isaddr, + u16 isport, ip4_address_t *idaddr, u16 idport, + ip4_address_t *xsaddr, u16 xsport, + ip4_address_t *xdaddr, u16 xdport, u8 proto, + u8 is_twicenat) +{ + nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport, + idaddr, idport, xdaddr, xdport, proto, 0, + is_twicenat); +} + /* * fd.io coding-style-patch-verification: ON *