Upgrade autogen to NICs and search types - csit

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author	Vratko Polak <vrpolak@cisco.com>	2019-04-04 13:45:11 +0200
committer	Vratko Polak <vrpolak@cisco.com>	2019-04-08 16:34:10 +0200
commit	5e6145a4260ffce1c302e94b9b241851f90838e1 (patch)
tree	2480a5419cf127ac64262d271b8094f4834b2a66 /tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-mrr.robot
parent	5221220aa5a893e93d78ba31f84b0ad4d6245ec3 (diff)

Upgrade autogen to NICs and search types

+ All perf suites updated, as autogen change is backward incompatible. + Only x710 -ndrpdr suites remain in git repository. + Removed retry feature of run_tests. + Renamed topology_type and traffic_type to traffic_profile. + Renamed framesize to frame_size; nic_model to nic_name. + Reordered Variables table to start with nic_name and overhead. + Fixed wrong overhead value in some cbc-sha1 suites. + Fixed some suite tags. ++ Introduced tags to distinguish suites, such as IPSECINT. + Bound crypto hardware to NIC name. + Implemented NIC limit hiding. + Also search and teardown related arguments are now hidden. + Main measurement keywords updated to new arg handling. + Max rate related keywords moved to performance_limits.robot + Teardowns unified. + Generated tests are archived. ++ Generated directory is .gitignore-d. + Regenerator raises an exception on seeing non-compatible suite. ++ Relatively helpful message should be seen in exception. + Suite and template Documentation has generated parts. +- With short NIC names only. + Autogen checker also upgraded. + Tag expressions replaced with long files to ensure analogous tests. Change-Id: I60e9a999187e7da1f60d0eb4fb02afa14682aa46 Signed-off-by: Vratko Polak <vrpolak@cisco.com>

Diffstat (limited to 'tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-mrr.robot')

-rw-r--r--

tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-mrr.robot

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1 files changed, 0 insertions, 138 deletions

/* * snat.c - simple nat plugin * * Copyright (c) 2016 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 <vnet/vnet.h> #include <vnet/ip/ip.h> #include <vnet/ip/ip4.h> #include <vnet/plugin/plugin.h> #include <snat/snat.h> #include <snat/snat_ipfix_logging.h> #include <snat/snat_det.h> #include <vnet/fib/fib_table.h> #include <vnet/fib/ip4_fib.h> #include <vpp/app/version.h> snat_main_t snat_main; /* Hook up input features */ VNET_FEATURE_INIT (ip4_snat_in2out, static) = { .arc_name = "ip4-unicast", .node_name = "snat-in2out", .runs_before = VNET_FEATURES ("snat-out2in"), }; VNET_FEATURE_INIT (ip4_snat_out2in, static) = { .arc_name = "ip4-unicast", .node_name = "snat-out2in", .runs_before = VNET_FEATURES ("ip4-lookup"), }; VNET_FEATURE_INIT (ip4_snat_det_in2out, static) = { .arc_name = "ip4-unicast", .node_name = "snat-det-in2out", .runs_before = VNET_FEATURES ("snat-det-out2in"), }; VNET_FEATURE_INIT (ip4_snat_det_out2in, static) = { .arc_name = "ip4-unicast", .node_name = "snat-det-out2in", .runs_before = VNET_FEATURES ("ip4-lookup"), }; VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static) = { .arc_name = "ip4-unicast", .node_name = "snat-in2out-worker-handoff", .runs_before = VNET_FEATURES ("snat-out2in-worker-handoff"), }; VNET_FEATURE_INIT (ip4_snat_out2in_worker_handoff, static) = { .arc_name = "ip4-unicast", .node_name = "snat-out2in-worker-handoff", .runs_before = VNET_FEATURES ("ip4-lookup"), }; VNET_FEATURE_INIT (ip4_snat_in2out_fast, static) = { .arc_name = "ip4-unicast", .node_name = "snat-in2out-fast", .runs_before = VNET_FEATURES ("snat-out2in-fast"), }; VNET_FEATURE_INIT (ip4_snat_out2in_fast, static) = { .arc_name = "ip4-unicast", .node_name = "snat-out2in-fast", .runs_before = VNET_FEATURES ("ip4-lookup"), }; /* *INDENT-OFF* */ VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, .description = "Network Address Translation", }; /* *INDENT-ON* */ /** * @brief Add/del NAT address to FIB. * * 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. * * @param addr IPv4 address. * @param plen address prefix length * @param sw_if_index Interface. * @param is_add If 0 delete, otherwise add. */ void snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index, int is_add) { fib_prefix_t prefix = { .fp_len = p_len, .fp_proto = FIB_PROTOCOL_IP4, .fp_addr = { .ip4.as_u32 = addr->as_u32, }, }; 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, FIB_SOURCE_PLUGIN_HI, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL | FIB_ENTRY_FLAG_EXCLUSIVE), FIB_PROTOCOL_IP4, NULL, sw_if_index, ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); else fib_table_entry_delete(fib_index, &prefix, FIB_SOURCE_PLUGIN_HI); } void snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id) { snat_address_t * ap; snat_interface_t *i; if (vrf_id != ~0) sm->vrf_mode = 1; /* Check if address already exists */ vec_foreach (ap, sm->addresses) { if (ap->addr.as_u32 == addr->as_u32) return; } vec_add2 (sm->addresses, ap, 1); ap->addr = *addr; ap->fib_index = ip4_fib_index_from_table_id(vrf_id); #define _(N, i, n, s) \ clib_bitmap_alloc (ap->busy_##n##_port_bitmap, 65535); foreach_snat_protocol #undef _ /* Add external address to FIB */ pool_foreach (i, sm->interfaces, ({ if (i->is_inside) continue; snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1); break; })); } 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, ({ if (m->external_addr.as_u32 == addr.as_u32) return 1; })); return 0; } void increment_v4_address (ip4_address_t * a) { u32 v; v = clib_net_to_host_u32(a->as_u32) + 1; a->as_u32 = clib_host_to_net_u32(v); } static void snat_add_static_mapping_when_resolved (snat_main_t * sm, ip4_address_t l_addr, u16 l_port, u32 sw_if_index, u16 e_port, u32 vrf_id, snat_protocol_t proto, int addr_only, int is_add) { snat_static_map_resolve_t *rp; vec_add2 (sm->to_resolve, rp, 1); rp->l_addr.as_u32 = l_addr.as_u32; rp->l_port = l_port; rp->sw_if_index = sw_if_index; rp->e_port = e_port; rp->vrf_id = vrf_id; rp->proto = proto; rp->addr_only = addr_only; rp->is_add = is_add; } /** * @brief Add static mapping. * * Create static mapping between local addr+port and external addr+port. * * @param l_addr Local IPv4 address. * @param e_addr External IPv4 address. * @param l_port Local port number. * @param e_port External port number. * @param vrf_id VRF ID. * @param addr_only If 0 address port and pair mapping, otherwise address only. * @param sw_if_index External port instead of specific IP address. * @param is_add If 0 delete static mapping, otherwise add. * * @returns */ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, u16 l_port, u16 e_port, u32 vrf_id, int addr_only, u32 sw_if_index, snat_protocol_t proto, int is_add) { snat_main_t * sm = &snat_main; snat_static_mapping_t *m; snat_session_key_t m_key; clib_bihash_kv_8_8_t kv, value; snat_address_t *a = 0; u32 fib_index = ~0; uword * p; snat_interface_t *interface; int i; /* If the external address is a specific interface address */ if (sw_if_index != ~0) { ip4_address_t * first_int_addr; /* Might be already set... */ first_int_addr = ip4_interface_first_address (sm->ip4_main, sw_if_index, 0 /* just want the address*/); /* DHCP resolution required? */ if (first_int_addr == 0) { snat_add_static_mapping_when_resolved (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto, addr_only, is_add); return 0; } else e_addr.as_u32 = first_int_addr->as_u32; } m_key.addr = e_addr; m_key.port = addr_only ? 0 : e_port; m_key.protocol = addr_only ? 0 : proto; m_key.fib_index = sm->outside_fib_index; kv.key = m_key.as_u64; 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); if (is_add) { if (m) return VNET_API_ERROR_VALUE_EXIST; /* Convert VRF id to FIB index */ if (vrf_id != ~0) { p = hash_get (sm->ip4_main->fib_index_by_table_id, vrf_id); if (!p) return VNET_API_ERROR_NO_SUCH_FIB; fib_index = p[0]; } /* If not specified use inside VRF id from SNAT plugin startup config */ else { fib_index = sm->inside_fib_index; vrf_id = sm->inside_vrf_id; } /* Find external address in allocated addresses and reserve port for address and port pair mapping when dynamic translations enabled */ if (!addr_only && !(sm->static_mapping_only)) { 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) { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \ return VNET_API_ERROR_INVALID_VALUE; \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \ if (e_port > 1024) \ a->busy_##n##_ports++; \ break; foreach_snat_protocol #undef _ default: clib_warning("unknown_protocol"); return VNET_API_ERROR_INVALID_VALUE_2; } break; } } /* External address must be allocated */ if (!a) return VNET_API_ERROR_NO_SUCH_ENTRY; } pool_get (sm->static_mappings, m); memset (m, 0, sizeof (*m)); m->local_addr = l_addr; m->external_addr = e_addr; m->addr_only = addr_only; m->vrf_id = vrf_id; m->fib_index = fib_index; if (!addr_only) { m->local_port = l_port; m->external_port = e_port; m->proto = proto; } m_key.addr = m->local_addr; m_key.port = m->local_port; m_key.protocol = m->proto; m_key.fib_index = m->fib_index; kv.key = m_key.as_u64; kv.value = m - sm->static_mappings; clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 1); m_key.addr = m->external_addr; m_key.port = m->external_port; m_key.fib_index = sm->outside_fib_index; kv.key = m_key.as_u64; kv.value = m - sm->static_mappings; clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1); /* Assign worker */ if (sm->workers) { snat_user_key_t w_key0; snat_worker_key_t w_key1; w_key0.addr = m->local_addr; w_key0.fib_index = m->fib_index; kv.key = w_key0.as_u64; if (clib_bihash_search_8_8 (&sm->worker_by_in, &kv, &value)) { kv.value = sm->first_worker_index + sm->workers[sm->next_worker++ % vec_len (sm->workers)]; clib_bihash_add_del_8_8 (&sm->worker_by_in, &kv, 1); } else { kv.value = value.value; } w_key1.addr = m->external_addr; w_key1.port = clib_host_to_net_u16 (m->external_port); w_key1.fib_index = sm->outside_fib_index; kv.key = w_key1.as_u64; clib_bihash_add_del_8_8 (&sm->worker_by_out, &kv, 1); } } else { if (!m) return VNET_API_ERROR_NO_SUCH_ENTRY; /* Free external address port */ if (!addr_only && !(sm->static_mapping_only)) { 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 SNAT_PROTOCOL_##N: \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \ if (e_port > 1024) \ a->busy_##n##_ports--; \ break; foreach_snat_protocol #undef _ default: clib_warning("unknown_protocol"); return VNET_API_ERROR_INVALID_VALUE_2; } break; } } } m_key.addr = m->local_addr; m_key.port = m->local_port; m_key.protocol = m->proto; m_key.fib_index = m->fib_index; kv.key = m_key.as_u64; clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0); m_key.addr = m->external_addr; m_key.port = m->external_port; m_key.fib_index = sm->outside_fib_index; kv.key = m_key.as_u64; clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0); /* Delete session(s) for static mapping if exist */ if (!(sm->static_mapping_only) || (sm->static_mapping_only && sm->static_mapping_connection_tracking)) { snat_user_key_t u_key; snat_user_t *u; dlist_elt_t * head, * elt; u32 elt_index, head_index, del_elt_index; u32 ses_index; u64 user_index; snat_session_t * s; snat_main_per_thread_data_t *tsm; u_key.addr = m->local_addr; u_key.fib_index = m->fib_index; kv.key = u_key.as_u64; if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value)) { user_index = value.value; if (!clib_bihash_search_8_8 (&sm->worker_by_in, &kv, &value)) tsm = vec_elt_at_index (sm->per_thread_data, value.value); else tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); u = pool_elt_at_index (tsm->users, user_index); if (u->nstaticsessions) { head_index = u->sessions_per_user_list_head_index; head = pool_elt_at_index (tsm->list_pool, head_index); elt_index = head->next; elt = pool_elt_at_index (tsm->list_pool, elt_index); ses_index = elt->value; while (ses_index != ~0) { s = pool_elt_at_index (tsm->sessions, ses_index); del_elt_index = elt_index; elt_index = elt->next; elt = pool_elt_at_index (tsm->list_pool, elt_index); ses_index = elt->value; if (!addr_only) { if ((s->out2in.addr.as_u32 != e_addr.as_u32) && (clib_net_to_host_u16 (s->out2in.port) != e_port)) continue; } /* log NAT event */ snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->in2out.protocol, s->in2out.port, s->out2in.port, s->in2out.fib_index); value.key = s->in2out.as_u64; clib_bihash_add_del_8_8 (&sm->in2out, &value, 0); value.key = s->out2in.as_u64; clib_bihash_add_del_8_8 (&sm->out2in, &value, 0); pool_put (tsm->sessions, s); clib_dlist_remove (tsm->list_pool, del_elt_index); pool_put_index (tsm->list_pool, del_elt_index); u->nstaticsessions--; if (!addr_only) break; } if (addr_only) { pool_put (tsm->users, u); clib_bihash_add_del_8_8 (&sm->user_hash, &kv, 0); } } } } /* Delete static mapping from pool */ pool_put (sm->static_mappings, m); } if (!addr_only) return 0; /* Add/delete external address to FIB */ pool_foreach (interface, sm->interfaces, ({ if (interface->is_inside) continue; snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add); break; })); return 0; } int snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm) { snat_address_t *a = 0; snat_session_t *ses; u32 *ses_to_be_removed = 0, *ses_index; clib_bihash_kv_8_8_t kv, value; snat_user_key_t user_key; snat_user_t *u; snat_main_per_thread_data_t *tsm; snat_static_mapping_t *m; snat_interface_t *interface; int i; /* Find SNAT address */ for (i=0; i < vec_len (sm->addresses); i++) { if (sm->addresses[i].addr.as_u32 == addr.as_u32) { a = sm->addresses + i; break; } } if (!a) return VNET_API_ERROR_NO_SUCH_ENTRY; if (delete_sm) { pool_foreach (m, sm->static_mappings, ({ if (m->external_addr.as_u32 == addr.as_u32) (void) snat_add_static_mapping (m->local_addr, m->external_addr, m->local_port, m->external_port, m->vrf_id, m->addr_only, ~0, m->proto, 0); })); } else { /* Check if address is used in some static mapping */ if (is_snat_address_used_in_static_mapping(sm, addr)) { clib_warning ("address used in static mapping"); return VNET_API_ERROR_UNSPECIFIED; } } /* Delete sessions using address */ if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports) { vec_foreach (tsm, sm->per_thread_data) { pool_foreach (ses, tsm->sessions, ({ if (ses->out2in.addr.as_u32 == addr.as_u32) { /* log NAT event */ snat_ipfix_logging_nat44_ses_delete(ses->in2out.addr.as_u32, ses->out2in.addr.as_u32, ses->in2out.protocol, ses->in2out.port, ses->out2in.port, ses->in2out.fib_index); vec_add1 (ses_to_be_removed, ses - tsm->sessions); kv.key = ses->in2out.as_u64; clib_bihash_add_del_8_8 (&sm->in2out, &kv, 0); kv.key = ses->out2in.as_u64; clib_bihash_add_del_8_8 (&sm->out2in, &kv, 0); clib_dlist_remove (tsm->list_pool, ses->per_user_index); user_key.addr = ses->in2out.addr; user_key.fib_index = ses->in2out.fib_index; kv.key = user_key.as_u64; if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value)) { u = pool_elt_at_index (tsm->users, value.value); u->nsessions--; } } })); vec_foreach (ses_index, ses_to_be_removed) pool_put_index (tsm->sessions, ses_index[0]); vec_free (ses_to_be_removed); } } vec_del1 (sm->addresses, i); /* Delete external address from FIB */ pool_foreach (interface, sm->interfaces, ({ if (interface->is_inside) continue; snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0); break; })); return 0; } int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del) { snat_main_t *sm = &snat_main; snat_interface_t *i; const char * feature_name; snat_address_t * ap; snat_static_mapping_t * m; snat_det_map_t * dm; if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking)) feature_name = is_inside ? "snat-in2out-fast" : "snat-out2in-fast"; else { if (sm->num_workers > 1 && !sm->deterministic) feature_name = is_inside ? "snat-in2out-worker-handoff" : "snat-out2in-worker-handoff"; else if (sm->deterministic) feature_name = is_inside ? "snat-det-in2out" : "snat-det-out2in"; else feature_name = is_inside ? "snat-in2out" : "snat-out2in"; } vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, !is_del, 0, 0); if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1) sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index, 0); if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1) sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, 0); pool_foreach (i, sm->interfaces, ({ if (i->sw_if_index == sw_if_index) { if (is_del) pool_put (sm->interfaces, i); else return VNET_API_ERROR_VALUE_EXIST; goto fib; } })); if (is_del) return VNET_API_ERROR_NO_SUCH_ENTRY; pool_get (sm->interfaces, i); i->sw_if_index = sw_if_index; i->is_inside = is_inside; /* Add/delete external addresses to FIB */ fib: if (is_inside) return 0; vec_foreach (ap, sm->addresses) snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del); pool_foreach (m, sm->static_mappings, ({ if (!(m->addr_only)) continue; snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del); })); pool_foreach (dm, sm->det_maps, ({ snat_add_del_addr_to_fib(&dm->out_addr, dm->out_plen, sw_if_index, !is_del); })); return 0; } int snat_set_workers (uword * bitmap) { snat_main_t *sm = &snat_main; int i; if (sm->num_workers < 2) return VNET_API_ERROR_FEATURE_DISABLED; if (clib_bitmap_last_set (bitmap) >= sm->num_workers) return VNET_API_ERROR_INVALID_WORKER; vec_free (sm->workers); clib_bitmap_foreach (i, bitmap, ({ vec_add1(sm->workers, i); })); return 0; } static void snat_ip4_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 clib_error_t * snat_init (vlib_main_t * vm) { snat_main_t * sm = &snat_main; clib_error_t * error = 0; ip4_main_t * im = &ip4_main; ip_lookup_main_t * lm = &im->lookup_main; uword *p; vlib_thread_registration_t *tr; vlib_thread_main_t *tm = vlib_get_thread_main (); uword *bitmap = 0; u32 i; ip4_add_del_interface_address_callback_t cb4; sm->vlib_main = vm; sm->vnet_main = vnet_get_main(); sm->ip4_main = im; sm->ip4_lookup_main = lm; sm->api_main = &api_main; sm->first_worker_index = 0; sm->next_worker = 0; sm->num_workers = 0; sm->workers = 0; sm->fq_in2out_index = ~0; sm->fq_out2in_index = ~0; sm->udp_timeout = SNAT_UDP_TIMEOUT; sm->tcp_established_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT; sm->tcp_transitory_timeout = SNAT_TCP_TRANSITORY_TIMEOUT; sm->icmp_timeout = SNAT_ICMP_TIMEOUT; p = hash_get_mem (tm->thread_registrations_by_name, "workers"); if (p) { tr = (vlib_thread_registration_t *) p[0]; if (tr) { sm->num_workers = tr->count; sm->first_worker_index = tr->first_index; } } /* Use all available workers by default */ if (sm->num_workers > 1) { for (i=0; i < sm->num_workers; i++) bitmap = clib_bitmap_set (bitmap, i, 1); snat_set_workers(bitmap); clib_bitmap_free (bitmap); } error = snat_api_init(vm, sm); /* Set up the interface address add/del callback */ cb4.function = snat_ip4_add_del_interface_address_cb; cb4.function_opaque = 0; vec_add1 (im->add_del_interface_address_callbacks, cb4); /* Init IPFIX logging */ snat_ipfix_logging_init(vm); return error; } VLIB_INIT_FUNCTION (snat_init); void snat_free_outside_address_and_port (snat_main_t * sm, snat_session_key_t * k, u32 address_index) { snat_address_t *a; u16 port_host_byte_order = clib_net_to_host_u16 (k->port); ASSERT (address_index < vec_len (sm->addresses)); a = sm->addresses + address_index; switch (k->protocol) { #define _(N, i, n, s) \ case SNAT_PROTOCOL_##N: \ ASSERT (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, \ port_host_byte_order) == 1); \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, \ port_host_byte_order, 0); \ a->busy_##n##_ports--; \ break; foreach_snat_protocol #undef _ default: clib_warning("unknown_protocol"); return; } } /** * @brief Match SNAT static mapping. * * @param sm SNAT main. * @param match Address and port to match. * @param mapping External or local address and port of the matched mapping. * @param by_external If 0 match by local address otherwise match by external * address. * @param is_addr_only If matched mapping is address only * * @returns 0 if match found otherwise 1. */ int snat_static_mapping_match (snat_main_t * sm, snat_session_key_t match, snat_session_key_t * mapping, u8 by_external, u8 *is_addr_only) { clib_bihash_kv_8_8_t kv, value; snat_static_mapping_t *m; snat_session_key_t m_key; clib_bihash_8_8_t *mapping_hash = &sm->static_mapping_by_local; if (by_external) mapping_hash = &sm->static_mapping_by_external; m_key.addr = match.addr; m_key.port = clib_net_to_host_u16 (match.port); m_key.protocol = match.protocol; m_key.fib_index = match.fib_index; kv.key = m_key.as_u64; if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) { /* Try address only mapping */ m_key.port = 0; m_key.protocol = 0; kv.key = m_key.as_u64; if (clib_bihash_search_8_8 (mapping_hash, &kv, &value)) return 1; } m = pool_elt_at_index (sm->static_mappings, value.value); if (by_external) { mapping->addr = m->local_addr; /* Address only mapping doesn't change port */ mapping->port = m->addr_only ? match.port : clib_host_to_net_u16 (m->local_port); mapping->fib_index = m->fib_index; } else { mapping->addr = m->external_addr; /* Address only mapping doesn't change port */ mapping->port = m->addr_only ? match.port : clib_host_to_net_u16 (m->external_port); mapping->fib_index = sm->outside_fib_index; } if (PREDICT_FALSE(is_addr_only != 0)) *is_addr_only = m->addr_only; return 0; } int snat_alloc_outside_address_and_port (snat_main_t * sm, u32 fib_index, snat_session_key_t * k, u32 * address_indexp) { int i; snat_address_t *a; u32 portnum; for (i = 0; i < vec_len (sm->addresses); i++) { a = sm->addresses + i; if (sm->vrf_mode && a->fib_index != ~0 && a->fib_index != fib_index) continue; switch (k->protocol) { #define _(N, j, n, s) \ case SNAT_PROTOCOL_##N: \ if (a->busy_##n##_ports < (65535-1024)) \ { \ while (1) \ { \ portnum = random_u32 (&sm->random_seed); \ portnum &= 0xFFFF; \ if (portnum < 1024) \ continue; \ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \ continue; \ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \ a->busy_##n##_ports++; \ k->addr = a->addr; \ k->port = clib_host_to_net_u16(portnum); \ *address_indexp = i; \ return 0; \ } \ } \ break; foreach_snat_protocol #undef _ default: clib_warning("unknown protocol"); return 1; } } /* Totally out of translations to use... */ snat_ipfix_logging_addresses_exhausted(0); return 1; } static clib_error_t * add_address_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; snat_main_t * sm = &snat_main; ip4_address_t start_addr, end_addr, this_addr; u32 start_host_order, end_host_order; u32 vrf_id = ~0; int i, count; int is_add = 1; int rv = 0; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U - %U", unformat_ip4_address, &start_addr, unformat_ip4_address, &end_addr)) ; else if (unformat (line_input, "tenant-vrf %u", &vrf_id)) ; else if (unformat (line_input, "%U", unformat_ip4_address, &start_addr)) end_addr = start_addr; else if (unformat (line_input, "del")) is_add = 0; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } if (sm->static_mapping_only) { error = clib_error_return (0, "static mapping only mode"); goto done; } start_host_order = clib_host_to_net_u32 (start_addr.as_u32); end_host_order = clib_host_to_net_u32 (end_addr.as_u32); if (end_host_order < start_host_order) { error = clib_error_return (0, "end address less than start address"); goto done; } count = (end_host_order - start_host_order) + 1; if (count > 1024) clib_warning ("%U - %U, %d addresses...", format_ip4_address, &start_addr, format_ip4_address, &end_addr, count); this_addr = start_addr; for (i = 0; i < count; i++) { if (is_add) snat_add_address (sm, &this_addr, vrf_id); else rv = snat_del_address (sm, this_addr, 0); switch (rv) { case VNET_API_ERROR_NO_SUCH_ENTRY: error = clib_error_return (0, "S-NAT address not exist."); goto done; case VNET_API_ERROR_UNSPECIFIED: error = clib_error_return (0, "S-NAT address used in static mapping."); goto done; default: break; } increment_v4_address (&this_addr); } done: unformat_free (line_input); return error; } VLIB_CLI_COMMAND (add_address_command, static) = { .path = "snat add address", .short_help = "snat add addresses <ip4-range-start> [- <ip4-range-end>] " "[tenant-vrf <vrf-id>] [del]", .function = add_address_command_fn, }; static clib_error_t * snat_feature_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; vnet_main_t * vnm = vnet_get_main(); clib_error_t * error = 0; u32 sw_if_index; u32 * inside_sw_if_indices = 0; u32 * outside_sw_if_indices = 0; int is_del = 0; int i; sw_if_index = ~0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "in %U", unformat_vnet_sw_interface, vnm, &sw_if_index)) vec_add1 (inside_sw_if_indices, sw_if_index); else if (unformat (line_input, "out %U", unformat_vnet_sw_interface, vnm, &sw_if_index)) vec_add1 (outside_sw_if_indices, sw_if_index); else if (unformat (line_input, "del")) is_del = 1; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } if (vec_len (inside_sw_if_indices)) { for (i = 0; i < vec_len(inside_sw_if_indices); i++) { sw_if_index = inside_sw_if_indices[i]; snat_interface_add_del (sw_if_index, 1, is_del); } } if (vec_len (outside_sw_if_indices)) { for (i = 0; i < vec_len(outside_sw_if_indices); i++) { sw_if_index = outside_sw_if_indices[i]; snat_interface_add_del (sw_if_index, 0, is_del); } } done: unformat_free (line_input); vec_free (inside_sw_if_indices); vec_free (outside_sw_if_indices); return error; } VLIB_CLI_COMMAND (set_interface_snat_command, static) = { .path = "set interface snat", .function = snat_feature_command_fn, .short_help = "set interface snat in <intfc> out <intfc> [del]", }; uword unformat_snat_protocol (unformat_input_t * input, va_list * args) { u32 *r = va_arg (*args, u32 *); if (0); #define _(N, i, n, s) else if (unformat (input, s)) *r = SNAT_PROTOCOL_##N; foreach_snat_protocol #undef _ else return 0; return 1; } u8 * format_snat_protocol (u8 * s, va_list * args) { u32 i = va_arg (*args, u32); u8 *t = 0; switch (i) { #define _(N, j, n, str) case SNAT_PROTOCOL_##N: t = (u8 *) str; break; foreach_snat_protocol #undef _ default: s = format (s, "unknown"); } s = format (s, "%s", t); return s; } static clib_error_t * add_static_mapping_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; clib_error_t * error = 0; ip4_address_t l_addr, e_addr; u32 l_port = 0, e_port = 0, vrf_id = ~0; int is_add = 1; int addr_only = 1; u32 sw_if_index = ~0; vnet_main_t * vnm = vnet_get_main(); int rv; snat_protocol_t proto; u8 proto_set = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "local %U %u", unformat_ip4_address, &l_addr, &l_port)) addr_only = 0; else if (unformat (line_input, "local %U", unformat_ip4_address, &l_addr)) ; else if (unformat (line_input, "external %U %u", unformat_ip4_address, &e_addr, &e_port)) addr_only = 0; else if (unformat (line_input, "external %U", unformat_ip4_address, &e_addr)) ; else if (unformat (line_input, "external %U %u", unformat_vnet_sw_interface, vnm, &sw_if_index, &e_port)) addr_only = 0; else if (unformat (line_input, "external %U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else if (unformat (line_input, "vrf %u", &vrf_id)) ; else if (unformat (line_input, "%U", unformat_snat_protocol, &proto)) proto_set = 1; else if (unformat (line_input, "del")) is_add = 0; else { error = clib_error_return (0, "unknown input: '%U'", format_unformat_error, line_input); goto done; } } if (!addr_only && !proto_set) { error = clib_error_return (0, "missing protocol"); goto done; } rv = snat_add_static_mapping(l_addr, e_addr, (u16) l_port, (u16) e_port, vrf_id, addr_only, sw_if_index, proto, is_add); switch (rv) { case VNET_API_ERROR_INVALID_VALUE: error = clib_error_return (0, "External port already in use."); goto done; case VNET_API_ERROR_NO_SUCH_ENTRY: if (is_add) error = clib_error_return (0, "External addres must be allocated."); else error = clib_error_return (0, "Mapping not exist."); goto done; case VNET_API_ERROR_NO_SUCH_FIB: error = clib_error_return (0, "No such VRF id."); goto done; case VNET_API_ERROR_VALUE_EXIST: error = clib_error_return (0, "Mapping already exist."); goto done; default: break; } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat add static mapping} * Static mapping allows hosts on the external network to initiate connection * to to the local network host. * To create static mapping between local host address 10.0.0.3 port 6303 and * external address 4.4.4.4 port 3606 for TCP protocol use: * vpp# snat add static mapping local tcp 10.0.0.3 6303 external 4.4.4.4 3606 * If not runnig "static mapping only" S-NAT plugin mode use before: * vpp# snat add address 4.4.4.4 * To create static mapping between local and external address use: * vpp# snat add static mapping local 10.0.0.3 external 4.4.4.4 * @cliexend ?*/ VLIB_CLI_COMMAND (add_static_mapping_command, static) = { .path = "snat add static mapping", .function = add_static_mapping_command_fn, .short_help = "snat add static mapping local tcp|udp|icmp <addr> [<port>] external <addr> [<port>] [vrf <table-id>] [del]", }; static clib_error_t * set_workers_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; uword *bitmap = 0; int rv = 0; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U", unformat_bitmap_list, &bitmap)) ; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } if (bitmap == 0) { error = clib_error_return (0, "List of workers must be specified."); goto done; } rv = snat_set_workers(bitmap); clib_bitmap_free (bitmap); switch (rv) { case VNET_API_ERROR_INVALID_WORKER: error = clib_error_return (0, "Invalid worker(s)."); goto done; case VNET_API_ERROR_FEATURE_DISABLED: error = clib_error_return (0, "Supported only if 2 or more workes available."); goto done; default: break; } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{set snat workers} * Set SNAT workers if 2 or more workers available, use: * vpp# set snat workers 0-2,5 * @cliexend ?*/ VLIB_CLI_COMMAND (set_workers_command, static) = { .path = "set snat workers", .function = set_workers_command_fn, .short_help = "set snat workers <workers-list>", }; static clib_error_t * snat_ipfix_logging_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { unformat_input_t _line_input, *line_input = &_line_input; u32 domain_id = 0; u32 src_port = 0; u8 enable = 1; int rv = 0; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "domain %d", &domain_id)) ; else if (unformat (line_input, "src-port %d", &src_port)) ; else if (unformat (line_input, "disable")) enable = 0; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } rv = snat_ipfix_logging_enable_disable (enable, domain_id, (u16) src_port); if (rv) { error = clib_error_return (0, "ipfix logging enable failed"); goto done; } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat ipfix logging} * To enable SNAT IPFIX logging use: * vpp# snat ipfix logging * To set IPFIX exporter use: * vpp# set ipfix exporter collector 10.10.10.3 src 10.10.10.1 * @cliexend ?*/ VLIB_CLI_COMMAND (snat_ipfix_logging_enable_disable_command, static) = { .path = "snat ipfix logging", .function = snat_ipfix_logging_enable_disable_command_fn, .short_help = "snat ipfix logging [domain <domain-id>] [src-port <port>] [disable]", }; static u32 snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0) { snat_main_t *sm = &snat_main; snat_user_key_t key0; clib_bihash_kv_8_8_t kv0, value0; u32 next_worker_index = 0; key0.addr = ip0->src_address; key0.fib_index = rx_fib_index0; kv0.key = key0.as_u64; /* Ever heard of of the "user" before? */ if (clib_bihash_search_8_8 (&sm->worker_by_in, &kv0, &value0)) { /* No, assign next available worker (RR) */ next_worker_index = sm->first_worker_index; if (vec_len (sm->workers)) { next_worker_index += sm->workers[sm->next_worker++ % _vec_len (sm->workers)]; } /* add non-traslated packets worker lookup */ kv0.value = next_worker_index; clib_bihash_add_del_8_8 (&sm->worker_by_in, &kv0, 1); } else next_worker_index = value0.value; return next_worker_index; } static u32 snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0) { snat_main_t *sm = &snat_main; snat_worker_key_t key0; clib_bihash_kv_8_8_t kv0, value0; udp_header_t * udp0; u32 next_worker_index = 0; udp0 = ip4_next_header (ip0); key0.addr = ip0->dst_address; key0.port = udp0->dst_port; key0.fib_index = rx_fib_index0; if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_ICMP)) { icmp46_header_t * icmp0 = (icmp46_header_t *) udp0; icmp_echo_header_t *echo0 = (icmp_echo_header_t *)(icmp0+1); key0.port = echo0->identifier; } kv0.key = key0.as_u64; /* Ever heard of of the "user" before? */ if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0)) { key0.port = 0; kv0.key = key0.as_u64; if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0)) { /* No, assign next available worker (RR) */ next_worker_index = sm->first_worker_index; if (vec_len (sm->workers)) { next_worker_index += sm->workers[sm->next_worker++ % _vec_len (sm->workers)]; } } else { /* Static mapping without port */ next_worker_index = value0.value; } /* Add to translated packets worker lookup */ kv0.value = next_worker_index; clib_bihash_add_del_8_8 (&sm->worker_by_out, &kv0, 1); } else next_worker_index = value0.value; return next_worker_index; } static clib_error_t * snat_config (vlib_main_t * vm, unformat_input_t * input) { snat_main_t * sm = &snat_main; u32 translation_buckets = 1024; u32 translation_memory_size = 128<<20; u32 user_buckets = 128; u32 user_memory_size = 64<<20; u32 max_translations_per_user = 100; u32 outside_vrf_id = 0; u32 inside_vrf_id = 0; u32 static_mapping_buckets = 1024; u32 static_mapping_memory_size = 64<<20; u8 static_mapping_only = 0; u8 static_mapping_connection_tracking = 0; vlib_thread_main_t *tm = vlib_get_thread_main (); sm->deterministic = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "translation hash buckets %d", &translation_buckets)) ; else if (unformat (input, "translation hash memory %d", &translation_memory_size)); else if (unformat (input, "user hash buckets %d", &user_buckets)) ; else if (unformat (input, "user hash memory %d", &user_memory_size)) ; else if (unformat (input, "max translations per user %d", &max_translations_per_user)) ; else if (unformat (input, "outside VRF id %d", &outside_vrf_id)) ; else if (unformat (input, "inside VRF id %d", &inside_vrf_id)) ; else if (unformat (input, "static mapping only")) { static_mapping_only = 1; if (unformat (input, "connection tracking")) static_mapping_connection_tracking = 1; } else if (unformat (input, "deterministic")) sm->deterministic = 1; else return clib_error_return (0, "unknown input '%U'", format_unformat_error, input); } /* for show commands, etc. */ sm->translation_buckets = translation_buckets; sm->translation_memory_size = translation_memory_size; sm->user_buckets = user_buckets; sm->user_memory_size = user_memory_size; sm->max_translations_per_user = max_translations_per_user; sm->outside_vrf_id = outside_vrf_id; sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, outside_vrf_id); sm->inside_vrf_id = inside_vrf_id; sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, inside_vrf_id); sm->static_mapping_only = static_mapping_only; sm->static_mapping_connection_tracking = static_mapping_connection_tracking; if (sm->deterministic) { sm->in2out_node_index = snat_det_in2out_node.index; sm->out2in_node_index = snat_det_out2in_node.index; sm->icmp_match_in2out_cb = icmp_match_in2out_det; sm->icmp_match_out2in_cb = icmp_match_out2in_det; } else { sm->worker_in2out_cb = snat_get_worker_in2out_cb; sm->worker_out2in_cb = snat_get_worker_out2in_cb; sm->in2out_node_index = snat_in2out_node.index; sm->out2in_node_index = snat_out2in_node.index; if (!static_mapping_only || (static_mapping_only && static_mapping_connection_tracking)) { sm->icmp_match_in2out_cb = icmp_match_in2out_slow; sm->icmp_match_out2in_cb = icmp_match_out2in_slow; clib_bihash_init_8_8 (&sm->worker_by_in, "worker-by-in", user_buckets, user_memory_size); clib_bihash_init_8_8 (&sm->worker_by_out, "worker-by-out", user_buckets, user_memory_size); vec_validate (sm->per_thread_data, tm->n_vlib_mains - 1); clib_bihash_init_8_8 (&sm->in2out, "in2out", translation_buckets, translation_memory_size); clib_bihash_init_8_8 (&sm->out2in, "out2in", translation_buckets, translation_memory_size); clib_bihash_init_8_8 (&sm->user_hash, "users", user_buckets, user_memory_size); } else { sm->icmp_match_in2out_cb = icmp_match_in2out_fast; sm->icmp_match_out2in_cb = icmp_match_out2in_fast; } clib_bihash_init_8_8 (&sm->static_mapping_by_local, "static_mapping_by_local", static_mapping_buckets, static_mapping_memory_size); clib_bihash_init_8_8 (&sm->static_mapping_by_external, "static_mapping_by_external", static_mapping_buckets, static_mapping_memory_size); } return 0; } VLIB_CONFIG_FUNCTION (snat_config, "snat"); u8 * format_snat_session_state (u8 * s, va_list * args) { u32 i = va_arg (*args, u32); u8 *t = 0; switch (i) { #define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break; foreach_snat_session_state #undef _ default: t = format (t, "unknown"); } s = format (s, "%s", t); return s; } u8 * format_snat_key (u8 * s, va_list * args) { snat_session_key_t * key = va_arg (*args, snat_session_key_t *); char * protocol_string = "unknown"; static char *protocol_strings[] = { "UDP", "TCP", "ICMP", }; if (key->protocol < ARRAY_LEN(protocol_strings)) protocol_string = protocol_strings[key->protocol]; s = format (s, "%U proto %s port %d fib %d", format_ip4_address, &key->addr, protocol_string, clib_net_to_host_u16 (key->port), key->fib_index); return s; } u8 * format_snat_session (u8 * s, va_list * args) { snat_main_t * sm __attribute__((unused)) = va_arg (*args, snat_main_t *); snat_session_t * sess = va_arg (*args, snat_session_t *); s = format (s, " i2o %U\n", format_snat_key, &sess->in2out); s = format (s, " o2i %U\n", format_snat_key, &sess->out2in); s = format (s, " last heard %.2f\n", sess->last_heard); s = format (s, " total pkts %d, total bytes %lld\n", sess->total_pkts, sess->total_bytes); if (snat_is_session_static (sess)) s = format (s, " static translation\n"); else s = format (s, " dynamic translation\n"); return s; } u8 * format_snat_user (u8 * s, va_list * args) { snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *); snat_user_t * u = va_arg (*args, snat_user_t *); int verbose = va_arg (*args, int); dlist_elt_t * head, * elt; u32 elt_index, head_index; u32 session_index; snat_session_t * sess; s = format (s, "%U: %d dynamic translations, %d static translations\n", format_ip4_address, &u->addr, u->nsessions, u->nstaticsessions); if (verbose == 0) return s; if (u->nsessions || u->nstaticsessions) { head_index = u->sessions_per_user_list_head_index; head = pool_elt_at_index (sm->list_pool, head_index); elt_index = head->next; elt = pool_elt_at_index (sm->list_pool, elt_index); session_index = elt->value; while (session_index != ~0) { sess = pool_elt_at_index (sm->sessions, session_index); s = format (s, " %U\n", format_snat_session, sm, sess); elt_index = elt->next; elt = pool_elt_at_index (sm->list_pool, elt_index); session_index = elt->value; } } return s; } u8 * format_snat_static_mapping (u8 * s, va_list * args) { snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *); if (m->addr_only) s = format (s, "local %U external %U vrf %d", format_ip4_address, &m->local_addr, format_ip4_address, &m->external_addr, m->vrf_id); else s = format (s, "%U local %U:%d external %U:%d vrf %d", format_snat_protocol, m->proto, format_ip4_address, &m->local_addr, m->local_port, format_ip4_address, &m->external_addr, m->external_port, m->vrf_id); return s; } u8 * format_snat_static_map_to_resolve (u8 * s, va_list * args) { snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *); vnet_main_t *vnm = vnet_get_main(); if (m->addr_only) s = format (s, "local %U external %U vrf %d", format_ip4_address, &m->l_addr, format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, m->sw_if_index), m->vrf_id); else s = format (s, "%U local %U:%d external %U:%d vrf %d", format_snat_protocol, m->proto, format_ip4_address, &m->l_addr, m->l_port, format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, m->sw_if_index), m->e_port, m->vrf_id); return s; } u8 * format_det_map_ses (u8 * s, va_list * args) { snat_det_map_t * det_map = va_arg (*args, snat_det_map_t *); ip4_address_t in_addr, out_addr; u32 in_offset, out_offset; snat_det_session_t * ses = va_arg (*args, snat_det_session_t *); u32 * i = va_arg (*args, u32 *); u32 user_index = *i / SNAT_DET_SES_PER_USER; in_addr.as_u32 = clib_host_to_net_u32 ( clib_net_to_host_u32(det_map->in_addr.as_u32) + user_index); in_offset = clib_net_to_host_u32(in_addr.as_u32) - clib_net_to_host_u32(det_map->in_addr.as_u32); out_offset = in_offset / det_map->sharing_ratio; out_addr.as_u32 = clib_host_to_net_u32( clib_net_to_host_u32(det_map->out_addr.as_u32) + out_offset); s = format (s, "in %U:%d out %U:%d external host %U:%d state: %U expire: %d\n", format_ip4_address, &in_addr, clib_net_to_host_u16 (ses->in_port), format_ip4_address, &out_addr, clib_net_to_host_u16 (ses->out.out_port), format_ip4_address, &ses->out.ext_host_addr, clib_net_to_host_u16 (ses->out.ext_host_port), format_snat_session_state, ses->state, ses->expire); return s; } static clib_error_t * show_snat_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { int verbose = 0; snat_main_t * sm = &snat_main; snat_user_t * u; snat_static_mapping_t *m; snat_interface_t *i; snat_address_t * ap; vnet_main_t *vnm = vnet_get_main(); snat_main_per_thread_data_t *tsm; u32 users_num = 0, sessions_num = 0, *worker, *sw_if_index; uword j = 0; snat_static_map_resolve_t *rp; snat_det_map_t * dm; snat_det_session_t * ses; if (unformat (input, "detail")) verbose = 1; else if (unformat (input, "verbose")) verbose = 2; if (sm->static_mapping_only) { if (sm->static_mapping_connection_tracking) vlib_cli_output (vm, "SNAT mode: static mapping only connection " "tracking"); else vlib_cli_output (vm, "SNAT mode: static mapping only"); } else if (sm->deterministic) { vlib_cli_output (vm, "SNAT mode: deterministic mapping"); } else { vlib_cli_output (vm, "SNAT mode: dynamic translations enabled"); } if (verbose > 0) { pool_foreach (i, sm->interfaces, ({ vlib_cli_output (vm, "%U %s", format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, i->sw_if_index), i->is_inside ? "in" : "out"); })); if (vec_len (sm->auto_add_sw_if_indices)) { vlib_cli_output (vm, "SNAT pool addresses interfaces:"); vec_foreach (sw_if_index, sm->auto_add_sw_if_indices) { vlib_cli_output (vm, "%U", format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, *sw_if_index)); } } vec_foreach (ap, sm->addresses) { vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr); if (ap->fib_index != ~0) vlib_cli_output (vm, " tenant VRF: %u", ip4_fib_get(ap->fib_index)->table_id); else vlib_cli_output (vm, " tenant VRF independent"); #define _(N, i, n, s) \ vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s); foreach_snat_protocol #undef _ } } if (sm->num_workers > 1) { vlib_cli_output (vm, "%d workers", vec_len (sm->workers)); if (verbose > 0) { vec_foreach (worker, sm->workers) { vlib_worker_thread_t *w = vlib_worker_threads + *worker + sm->first_worker_index; vlib_cli_output (vm, " %s", w->name); } } } if (sm->deterministic) { vlib_cli_output (vm, "udp timeout: %dsec", sm->udp_timeout); vlib_cli_output (vm, "tcp-established timeout: %dsec", sm->tcp_established_timeout); vlib_cli_output (vm, "tcp-transitory timeout: %dsec", sm->tcp_transitory_timeout); vlib_cli_output (vm, "icmp timeout: %dsec", sm->icmp_timeout); vlib_cli_output (vm, "%d deterministic mappings", pool_elts (sm->det_maps)); if (verbose > 0) { pool_foreach (dm, sm->det_maps, ({ vlib_cli_output (vm, "in %U/%d out %U/%d\n", format_ip4_address, &dm->in_addr, dm->in_plen, format_ip4_address, &dm->out_addr, dm->out_plen); vlib_cli_output (vm, " outside address sharing ratio: %d\n", dm->sharing_ratio); vlib_cli_output (vm, " number of ports per inside host: %d\n", dm->ports_per_host); vlib_cli_output (vm, " sessions number: %d\n", dm->ses_num); if (verbose > 1) { vec_foreach_index (j, dm->sessions) { ses = vec_elt_at_index (dm->sessions, j); if (ses->in_port) vlib_cli_output (vm, " %U", format_det_map_ses, dm, ses, &j); } } })); } } else { if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking)) { vlib_cli_output (vm, "%d static mappings", pool_elts (sm->static_mappings)); if (verbose > 0) { pool_foreach (m, sm->static_mappings, ({ vlib_cli_output (vm, "%U", format_snat_static_mapping, m); })); } } else { vec_foreach (tsm, sm->per_thread_data) { users_num += pool_elts (tsm->users); sessions_num += pool_elts (tsm->sessions); } vlib_cli_output (vm, "%d users, %d outside addresses, %d active sessions," " %d static mappings", users_num, vec_len (sm->addresses), sessions_num, pool_elts (sm->static_mappings)); if (verbose > 0) { vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->in2out, verbose - 1); vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->out2in, verbose - 1); vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_in, verbose - 1); vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_out, verbose - 1); vec_foreach_index (j, sm->per_thread_data) { tsm = vec_elt_at_index (sm->per_thread_data, j); if (pool_elts (tsm->users) == 0) continue; vlib_worker_thread_t *w = vlib_worker_threads + j; vlib_cli_output (vm, "Thread %d (%s at lcore %u):", j, w->name, w->lcore_id); vlib_cli_output (vm, " %d list pool elements", pool_elts (tsm->list_pool)); pool_foreach (u, tsm->users, ({ vlib_cli_output (vm, " %U", format_snat_user, tsm, u, verbose - 1); })); } if (pool_elts (sm->static_mappings)) { vlib_cli_output (vm, "static mappings:"); pool_foreach (m, sm->static_mappings, ({ vlib_cli_output (vm, "%U", format_snat_static_mapping, m); })); for (j = 0; j < vec_len (sm->to_resolve); j++) { rp = sm->to_resolve + j; vlib_cli_output (vm, "%U", format_snat_static_map_to_resolve, rp); } } } } } return 0; } VLIB_CLI_COMMAND (show_snat_command, static) = { .path = "show snat", .short_help = "show snat", .function = show_snat_command_fn, }; static void snat_ip4_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) { snat_main_t *sm = &snat_main; snat_static_map_resolve_t *rp; u32 *indices_to_delete = 0; int i, j; int rv; for (i = 0; i < vec_len(sm->auto_add_sw_if_indices); i++) { if (sw_if_index == sm->auto_add_sw_if_indices[i]) { if (!is_delete) { /* Don't trip over lease renewal, static config */ for (j = 0; j < vec_len(sm->addresses); j++) if (sm->addresses[j].addr.as_u32 == address->as_u32) return; snat_add_address (sm, address, ~0); /* Scan static map resolution vector */ for (j = 0; j < vec_len (sm->to_resolve); j++) { rp = sm->to_resolve + j; /* On this interface? */ if (rp->sw_if_index == sw_if_index) { /* Add the static mapping */ rv = snat_add_static_mapping (rp->l_addr, address[0], rp->l_port, rp->e_port, rp->vrf_id, rp->addr_only, ~0 /* sw_if_index */, rp->proto, rp->is_add); if (rv) clib_warning ("snat_add_static_mapping returned %d", rv); vec_add1 (indices_to_delete, j); } } /* If we resolved any of the outstanding static mappings */ if (vec_len(indices_to_delete)) { /* Delete them */ for (j = vec_len(indices_to_delete)-1; j >= 0; j--) vec_delete(sm->to_resolve, 1, j); vec_free(indices_to_delete); } return; } else { (void) snat_del_address(sm, address[0], 1); return; } } } } int snat_add_interface_address (snat_main_t *sm, u32 sw_if_index, int is_del) { ip4_main_t * ip4_main = sm->ip4_main; ip4_address_t * first_int_addr; snat_static_map_resolve_t *rp; u32 *indices_to_delete = 0; int i, j; first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index, 0 /* just want the address*/); for (i = 0; i < vec_len(sm->auto_add_sw_if_indices); i++) { if (sm->auto_add_sw_if_indices[i] == sw_if_index) { if (is_del) { /* if have address remove it */ if (first_int_addr) (void) snat_del_address (sm, first_int_addr[0], 1); else { for (j = 0; j < vec_len (sm->to_resolve); j++) { rp = sm->to_resolve + j; if (rp->sw_if_index == sw_if_index) vec_add1 (indices_to_delete, j); } if (vec_len(indices_to_delete)) { for (j = vec_len(indices_to_delete)-1; j >= 0; j--) vec_del1(sm->to_resolve, j); vec_free(indices_to_delete); } } vec_del1(sm->auto_add_sw_if_indices, i); } else return VNET_API_ERROR_VALUE_EXIST; return 0; } } if (is_del) return VNET_API_ERROR_NO_SUCH_ENTRY; /* add to the auto-address list */ vec_add1(sm->auto_add_sw_if_indices, sw_if_index); /* If the address is already bound - or static - add it now */ if (first_int_addr) snat_add_address (sm, first_int_addr, ~0); return 0; } static clib_error_t * snat_add_interface_address_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; u32 sw_if_index; int rv; int is_del = 0; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U", unformat_vnet_sw_interface, sm->vnet_main, &sw_if_index)) ; else if (unformat (line_input, "del")) is_del = 1; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } rv = snat_add_interface_address (sm, sw_if_index, is_del); switch (rv) { case 0: break; default: error = clib_error_return (0, "snat_add_interface_address returned %d", rv); goto done; } done: unformat_free (line_input); return error; } VLIB_CLI_COMMAND (snat_add_interface_address_command, static) = { .path = "snat add interface address", .short_help = "snat add interface address <interface> [del]", .function = snat_add_interface_address_command_fn, }; static clib_error_t * snat_det_map_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t in_addr, out_addr; u32 in_plen, out_plen; int is_add = 1, rv; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "in %U/%u", unformat_ip4_address, &in_addr, &in_plen)) ; else if (unformat (line_input, "out %U/%u", unformat_ip4_address, &out_addr, &out_plen)) ; else if (unformat (line_input, "del")) is_add = 0; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } unformat_free (line_input); rv = snat_det_add_map(sm, &in_addr, (u8) in_plen, &out_addr, (u8)out_plen, is_add); if (rv) { error = clib_error_return (0, "snat_det_add_map return %d", rv); goto done; } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat deterministic add} * Create bijective mapping of inside address to outside address and port range * pairs, with the purpose of enabling deterministic NAT to reduce logging in * CGN deployments. * To create deterministic mapping between inside network 10.0.0.0/18 and * outside network 1.1.1.0/30 use: * # vpp# snat deterministic add in 10.0.0.0/18 out 1.1.1.0/30 * @cliexend ?*/ VLIB_CLI_COMMAND (snat_det_map_command, static) = { .path = "snat deterministic add", .short_help = "snat deterministic add in <addr>/<plen> out <addr>/<plen> [del]", .function = snat_det_map_command_fn, }; static clib_error_t * snat_det_forward_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t in_addr, out_addr; u16 lo_port; snat_det_map_t * dm; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U", unformat_ip4_address, &in_addr)) ; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } unformat_free (line_input); dm = snat_det_map_by_user(sm, &in_addr); if (!dm) vlib_cli_output (vm, "no match"); else { snat_det_forward (dm, &in_addr, &out_addr, &lo_port); vlib_cli_output (vm, "%U:<%d-%d>", format_ip4_address, &out_addr, lo_port, lo_port + dm->ports_per_host - 1); } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat deterministic forward} * Return outside address and port range from inside address for deterministic * NAT. * To obtain outside address and port of inside host use: * vpp# snat deterministic forward 10.0.0.2 * 1.1.1.0:<1054-1068> * @cliexend ?*/ VLIB_CLI_COMMAND (snat_det_forward_command, static) = { .path = "snat deterministic forward", .short_help = "snat deterministic forward <addr>", .function = snat_det_forward_command_fn, }; static clib_error_t * snat_det_reverse_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t in_addr, out_addr; u32 out_port; snat_det_map_t * dm; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U:%d", unformat_ip4_address, &out_addr, &out_port)) ; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); } } unformat_free (line_input); if (out_port < 1024 || out_port > 65535) { error = clib_error_return (0, "wrong port, must be <1024-65535>"); goto done; } dm = snat_det_map_by_out(sm, &out_addr); if (!dm) vlib_cli_output (vm, "no match"); else { snat_det_reverse (dm, &out_addr, (u16) out_port, &in_addr); vlib_cli_output (vm, "%U", format_ip4_address, &in_addr); } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat deterministic reverse} * Return inside address from outside address and port for deterministic NAT. * To obtain inside host address from outside address and port use: * #vpp snat deterministic reverse 1.1.1.1:1276 * 10.0.16.16 * @cliexend ?*/ VLIB_CLI_COMMAND (snat_det_reverse_command, static) = { .path = "snat deterministic reverse", .short_help = "snat deterministic reverse <addr>:<port>", .function = snat_det_reverse_command_fn, }; static clib_error_t * set_timeout_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "udp %u", &sm->udp_timeout)) ; else if (unformat (line_input, "tcp-established %u", &sm->tcp_established_timeout)) ; else if (unformat (line_input, "tcp-transitory %u", &sm->tcp_transitory_timeout)) ; else if (unformat (line_input, "icmp %u", &sm->icmp_timeout)) ; else if (unformat (line_input, "reset")) { sm->udp_timeout = SNAT_UDP_TIMEOUT; sm->tcp_established_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT; sm->tcp_transitory_timeout = SNAT_TCP_TRANSITORY_TIMEOUT; sm->icmp_timeout = SNAT_ICMP_TIMEOUT; } else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } unformat_free (line_input); done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{set snat deterministic timeout} * Set values of timeouts for deterministic NAT (in seconds), use: * vpp# set snat deterministic timeout udp 120 tcp-established 7500 * tcp-transitory 250 icmp 90 * To reset default values use: * vpp# set snat deterministic timeout reset * @cliexend ?*/ VLIB_CLI_COMMAND (set_timeout_command, static) = { .path = "set snat deterministic timeout", .function = set_timeout_command_fn, .short_help = "set snat deterministic timeout [udp <sec> | tcp-established <sec> " "tcp-transitory <sec> | icmp <sec> | reset]", }; static clib_error_t * snat_det_close_session_out_fn (vlib_main_t *vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t out_addr, ext_addr, in_addr; u16 out_port, ext_port; snat_det_map_t * dm; snat_det_session_t * ses; snat_det_out_key_t key; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U:%d %U:%d", unformat_ip4_address, &out_addr, &out_port, unformat_ip4_address, &ext_addr, &ext_port)) ; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } unformat_free (line_input); dm = snat_det_map_by_out(sm, &out_addr); if (!dm) vlib_cli_output (vm, "no match"); else { snat_det_reverse(dm, &ext_addr, out_port, &in_addr); key.ext_host_addr = out_addr; key.ext_host_port = ntohs(ext_port); key.out_port = ntohs(out_port); ses = snat_det_get_ses_by_out(dm, &out_addr, key.as_u64); if (!ses) vlib_cli_output (vm, "no match"); else snat_det_ses_close(dm, ses); } done: unformat_free (line_input); return error; } /*? * @cliexpar * @cliexstart{snat deterministic close session out} * Close session using outside ip address and port * and external ip address and port, use: * vpp# snat deterministic close session out 1.1.1.1:1276 2.2.2.2:2387 * @cliexend ?*/ VLIB_CLI_COMMAND (snat_det_close_sesion_out_command, static) = { .path = "snat deterministic close session out", .short_help = "snat deterministic close session out " "<out_addr>:<out_port> <ext_addr>:<ext_port>", .function = snat_det_close_session_out_fn, }; static clib_error_t * snat_det_close_session_in_fn (vlib_main_t *vm, unformat_input_t * input, vlib_cli_command_t * cmd) { snat_main_t *sm = &snat_main; unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t in_addr, ext_addr; u16 in_port, ext_port; snat_det_map_t * dm; snat_det_session_t * ses; snat_det_out_key_t key; clib_error_t *error = 0; /* Get a line of input. */ if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "%U:%d %U:%d", unformat_ip4_address, &in_addr, &in_port, unformat_ip4_address, &ext_addr, &ext_port)) ; else { error = clib_error_return (0, "unknown input '%U'", format_unformat_error, line_input); goto done; } } unformat_free (line_input); dm = snat_det_map_by_user (sm, &in_addr); if (!dm) vlib_cli_output (vm, "no match"); else { key.ext_host_addr = ext_addr; key.ext_host_port = ntohs (ext_port); ses = snat_det_find_ses_by_in (dm, &in_addr, ntohs(in_port), key); if (!ses) vlib_cli_output (vm, "no match"); else snat_det_ses_close(dm, ses); } done: unformat_free(line_input); return error; } /*? * @cliexpar * @cliexstart{snat deterministic close_session_in} * Close session using inside ip address and port * and external ip address and port, use: * vpp# snat deterministic close session in 3.3.3.3:3487 2.2.2.2:2387 * @cliexend ?*/ VLIB_CLI_COMMAND (snat_det_close_session_in_command, static) = { .path = "snat deterministic close session in", .short_help = "snat deterministic close session in " "<in_addr>:<in_port> <ext_addr>:<ext_port>", .function = snat_det_close_session_in_fn, };


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