diff options
Diffstat (limited to 'src/plugins/nat/nat44-ei/nat44_ei_api.c')
| -rw-r--r-- | src/plugins/nat/nat44-ei/nat44_ei_api.c | 1199 |
1 files changed, 1199 insertions, 0 deletions
diff --git a/src/plugins/nat/nat44-ei/nat44_ei_api.c b/src/plugins/nat/nat44-ei/nat44_ei_api.c new file mode 100644 index 00000000000..74e077485cc --- /dev/null +++ b/src/plugins/nat/nat44-ei/nat44_ei_api.c @@ -0,0 +1,1199 @@ +/* + * Copyright (c) 2020 Cisco and/or its affiliates. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/ip/ip_types_api.h> +#include <vlibmemory/api.h> + +#include <vnet/fib/fib_table.h> + +#include <nat/lib/nat_inlines.h> +#include <nat/lib/ipfix_logging.h> + +#include <nat/nat44-ei/nat44_ei.api_enum.h> +#include <nat/nat44-ei/nat44_ei.api_types.h> + +#include <nat/nat44-ei/nat44_ei_ha.h> +#include <nat/nat44-ei/nat44_ei.h> + +#define REPLY_MSG_ID_BASE nm->msg_id_base +#include <vlibapi/api_helper_macros.h> + +static void +vl_api_nat44_ei_show_running_config_t_handler ( + vl_api_nat44_ei_show_running_config_t *mp) +{ + vl_api_nat44_ei_show_running_config_reply_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_config_t *rc = &nm->rconfig; + int rv = 0; + + REPLY_MACRO2_ZERO ( + VL_API_NAT44_EI_SHOW_RUNNING_CONFIG_REPLY, ({ + rmp->inside_vrf = htonl (rc->inside_vrf); + rmp->outside_vrf = htonl (rc->outside_vrf); + rmp->users = htonl (rc->users); + rmp->sessions = htonl (rc->sessions); + rmp->user_sessions = htonl (rc->user_sessions); + + rmp->user_buckets = htonl (nm->user_buckets); + rmp->translation_buckets = htonl (nm->translation_buckets); + + rmp->timeouts.udp = htonl (nm->timeouts.udp); + rmp->timeouts.tcp_established = htonl (nm->timeouts.tcp.established); + rmp->timeouts.tcp_transitory = htonl (nm->timeouts.tcp.transitory); + rmp->timeouts.icmp = htonl (nm->timeouts.icmp); + + rmp->forwarding_enabled = nm->forwarding_enabled == 1; + // consider how to split functionality between subplugins + rmp->ipfix_logging_enabled = nat_ipfix_logging_enabled (); + + if (rc->static_mapping_only) + rmp->flags |= NAT44_EI_STATIC_MAPPING_ONLY; + if (rc->connection_tracking) + rmp->flags |= NAT44_EI_CONNECTION_TRACKING; + if (rc->out2in_dpo) + rmp->flags |= NAT44_EI_OUT2IN_DPO; + })); +} + +static void +vl_api_nat44_ei_set_workers_t_handler (vl_api_nat44_ei_set_workers_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_workers_reply_t *rmp; + int rv = 0; + uword *bitmap = 0; + u64 mask; + + mask = clib_net_to_host_u64 (mp->worker_mask); + + if (nm->num_workers < 2) + { + rv = VNET_API_ERROR_FEATURE_DISABLED; + goto send_reply; + } + + bitmap = clib_bitmap_set_multiple (bitmap, 0, mask, BITS (mask)); + rv = nat44_ei_set_workers (bitmap); + clib_bitmap_free (bitmap); + +send_reply: + REPLY_MACRO (VL_API_NAT44_EI_SET_WORKERS_REPLY); +} + +static void +send_nat_worker_details (u32 worker_index, vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_worker_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + vlib_worker_thread_t *w = + vlib_worker_threads + worker_index + nm->first_worker_index; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_WORKER_DETAILS + nm->msg_id_base); + rmp->context = context; + rmp->worker_index = htonl (worker_index); + rmp->lcore_id = htonl (w->cpu_id); + strncpy ((char *) rmp->name, (char *) w->name, ARRAY_LEN (rmp->name) - 1); + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_worker_dump_t_handler (vl_api_nat44_ei_worker_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + u32 *worker_index; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + vec_foreach (worker_index, nm->workers) + { + send_nat_worker_details (*worker_index, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_set_log_level_t_handler (vl_api_nat44_ei_set_log_level_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_log_level_reply_t *rmp; + int rv = 0; + + if (nm->log_level > NAT_LOG_DEBUG) + rv = VNET_API_ERROR_UNSUPPORTED; + else + nm->log_level = mp->log_level; + + REPLY_MACRO (VL_API_NAT44_EI_SET_LOG_LEVEL_REPLY); +} + +static void +vl_api_nat44_ei_plugin_enable_disable_t_handler ( + vl_api_nat44_ei_plugin_enable_disable_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_config_t c = { 0 }; + vl_api_nat44_ei_plugin_enable_disable_reply_t *rmp; + int rv = 0; + + if (mp->enable) + { + c.static_mapping_only = mp->flags & NAT44_EI_STATIC_MAPPING_ONLY; + c.connection_tracking = mp->flags & NAT44_EI_CONNECTION_TRACKING; + c.out2in_dpo = mp->flags & NAT44_EI_OUT2IN_DPO; + + c.inside_vrf = ntohl (mp->inside_vrf); + c.outside_vrf = ntohl (mp->outside_vrf); + + c.users = ntohl (mp->users); + + c.sessions = ntohl (mp->sessions); + + c.user_sessions = ntohl (mp->user_sessions); + + rv = nat44_ei_plugin_enable (c); + } + else + rv = nat44_ei_plugin_disable (); + + REPLY_MACRO (VL_API_NAT44_EI_PLUGIN_ENABLE_DISABLE_REPLY); +} + +static void +vl_api_nat44_ei_ipfix_enable_disable_t_handler ( + vl_api_nat44_ei_ipfix_enable_disable_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ipfix_enable_disable_reply_t *rmp; + int rv = 0; + + rv = nat_ipfix_logging_enable_disable (mp->enable, + clib_host_to_net_u32 (mp->domain_id), + clib_host_to_net_u16 (mp->src_port)); + + REPLY_MACRO (VL_API_NAT44_EI_IPFIX_ENABLE_DISABLE_REPLY); +} + +static void +vl_api_nat44_ei_set_timeouts_t_handler (vl_api_nat44_ei_set_timeouts_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_timeouts_reply_t *rmp; + int rv = 0; + + nm->timeouts.udp = ntohl (mp->udp); + nm->timeouts.tcp.established = ntohl (mp->tcp_established); + nm->timeouts.tcp.transitory = ntohl (mp->tcp_transitory); + nm->timeouts.icmp = ntohl (mp->icmp); + + REPLY_MACRO (VL_API_NAT44_EI_SET_TIMEOUTS_REPLY); +} + +static void +vl_api_nat44_ei_set_addr_and_port_alloc_alg_t_handler ( + vl_api_nat44_ei_set_addr_and_port_alloc_alg_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_addr_and_port_alloc_alg_reply_t *rmp; + int rv = 0; + u16 port_start, port_end; + + switch (mp->alg) + { + case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_DEFAULT: + nat44_ei_set_alloc_default (); + break; + case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_MAPE: + nat44_ei_set_alloc_mape (ntohs (mp->psid), mp->psid_offset, + mp->psid_length); + break; + case NAT44_EI_ADDR_AND_PORT_ALLOC_ALG_RANGE: + port_start = ntohs (mp->start_port); + port_end = ntohs (mp->end_port); + if (port_end <= port_start) + { + rv = VNET_API_ERROR_INVALID_VALUE; + goto send_reply; + } + nat44_ei_set_alloc_range (port_start, port_end); + break; + default: + rv = VNET_API_ERROR_INVALID_VALUE; + break; + } + +send_reply: + REPLY_MACRO (VL_API_NAT44_EI_SET_ADDR_AND_PORT_ALLOC_ALG_REPLY); +} + +static void +vl_api_nat44_ei_get_addr_and_port_alloc_alg_t_handler ( + vl_api_nat44_ei_get_addr_and_port_alloc_alg_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_get_addr_and_port_alloc_alg_reply_t *rmp; + int rv = 0; + + REPLY_MACRO2 (VL_API_NAT44_EI_GET_ADDR_AND_PORT_ALLOC_ALG_REPLY, ({ + rmp->alg = nm->addr_and_port_alloc_alg; + rmp->psid_offset = nm->psid_offset; + rmp->psid_length = nm->psid_length; + rmp->psid = htons (nm->psid); + rmp->start_port = htons (nm->start_port); + rmp->end_port = htons (nm->end_port); + })) +} + +static void +vl_api_nat44_ei_set_mss_clamping_t_handler ( + vl_api_nat44_ei_set_mss_clamping_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_mss_clamping_reply_t *rmp; + int rv = 0; + + if (mp->enable) + nm->mss_clamping = ntohs (mp->mss_value); + else + nm->mss_clamping = 0; + + REPLY_MACRO (VL_API_NAT44_EI_SET_MSS_CLAMPING_REPLY); +} + +static void +vl_api_nat44_ei_get_mss_clamping_t_handler ( + vl_api_nat44_ei_get_mss_clamping_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_get_mss_clamping_reply_t *rmp; + int rv = 0; + + REPLY_MACRO2 (VL_API_NAT44_EI_GET_MSS_CLAMPING_REPLY, ({ + rmp->enable = nm->mss_clamping ? 1 : 0; + rmp->mss_value = htons (nm->mss_clamping); + })) +} + +static void +vl_api_nat44_ei_ha_set_listener_t_handler ( + vl_api_nat44_ei_ha_set_listener_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_set_listener_reply_t *rmp; + ip4_address_t addr; + int rv; + + memcpy (&addr, &mp->ip_address, sizeof (addr)); + rv = nat_ha_set_listener (&addr, clib_net_to_host_u16 (mp->port), + clib_net_to_host_u32 (mp->path_mtu)); + + REPLY_MACRO (VL_API_NAT44_EI_HA_SET_LISTENER_REPLY); +} + +static void +vl_api_nat44_ei_ha_get_listener_t_handler ( + vl_api_nat44_ei_ha_get_listener_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_get_listener_reply_t *rmp; + int rv = 0; + ip4_address_t addr; + u16 port; + u32 path_mtu; + + nat_ha_get_listener (&addr, &port, &path_mtu); + + REPLY_MACRO2 (VL_API_NAT44_EI_HA_GET_LISTENER_REPLY, ({ + clib_memcpy (rmp->ip_address, &addr, sizeof (ip4_address_t)); + rmp->port = clib_host_to_net_u16 (port); + rmp->path_mtu = clib_host_to_net_u32 (path_mtu); + })) +} + +static void +vl_api_nat44_ei_ha_set_failover_t_handler ( + vl_api_nat44_ei_ha_set_failover_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_set_failover_reply_t *rmp; + ip4_address_t addr; + int rv; + + memcpy (&addr, &mp->ip_address, sizeof (addr)); + rv = + nat_ha_set_failover (&addr, clib_net_to_host_u16 (mp->port), + clib_net_to_host_u32 (mp->session_refresh_interval)); + + REPLY_MACRO (VL_API_NAT44_EI_HA_SET_FAILOVER_REPLY); +} + +static void +vl_api_nat44_ei_ha_get_failover_t_handler ( + vl_api_nat44_ei_ha_get_failover_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_get_failover_reply_t *rmp; + int rv = 0; + ip4_address_t addr; + u16 port; + u32 session_refresh_interval; + + nat_ha_get_failover (&addr, &port, &session_refresh_interval); + + REPLY_MACRO2 (VL_API_NAT44_EI_HA_GET_FAILOVER_REPLY, ({ + clib_memcpy (rmp->ip_address, &addr, sizeof (ip4_address_t)); + rmp->port = clib_host_to_net_u16 (port); + rmp->session_refresh_interval = + clib_host_to_net_u32 (session_refresh_interval); + })) +} + +static void +vl_api_nat44_ei_ha_flush_t_handler (vl_api_nat44_ei_ha_flush_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_flush_reply_t *rmp; + int rv = 0; + + nat_ha_flush (0); + + REPLY_MACRO (VL_API_NAT44_EI_HA_FLUSH_REPLY); +} + +static void +nat_ha_resync_completed_event_cb (u32 client_index, u32 pid, u32 missed_count) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_registration_t *reg; + vl_api_nat44_ei_ha_resync_completed_event_t *mp; + + reg = vl_api_client_index_to_registration (client_index); + if (!reg) + return; + + mp = vl_msg_api_alloc (sizeof (*mp)); + clib_memset (mp, 0, sizeof (*mp)); + mp->client_index = client_index; + mp->pid = pid; + mp->missed_count = clib_host_to_net_u32 (missed_count); + mp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_HA_RESYNC_COMPLETED_EVENT + nm->msg_id_base); + + vl_api_send_msg (reg, (u8 *) mp); +} + +static void +vl_api_nat44_ei_ha_resync_t_handler (vl_api_nat44_ei_ha_resync_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_ha_resync_reply_t *rmp; + int rv; + + rv = nat_ha_resync ( + mp->client_index, mp->pid, + mp->want_resync_event ? nat_ha_resync_completed_event_cb : NULL); + + REPLY_MACRO (VL_API_NAT44_EI_HA_RESYNC_REPLY); +} + +static void +vl_api_nat44_ei_del_user_t_handler (vl_api_nat44_ei_del_user_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_del_user_reply_t *rmp; + ip4_address_t addr; + int rv; + memcpy (&addr.as_u8, mp->ip_address, 4); + rv = nat44_ei_user_del (&addr, ntohl (mp->fib_index)); + REPLY_MACRO (VL_API_NAT44_EI_DEL_USER_REPLY); +} + +static void +vl_api_nat44_ei_add_del_address_range_t_handler ( + vl_api_nat44_ei_add_del_address_range_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_add_del_address_range_reply_t *rmp; + ip4_address_t this_addr; + u8 is_add; + u32 start_host_order, end_host_order; + u32 vrf_id; + int i, count; + int rv = 0; + u32 *tmp; + + if (nm->static_mapping_only) + { + rv = VNET_API_ERROR_FEATURE_DISABLED; + goto send_reply; + } + + is_add = mp->is_add; + + tmp = (u32 *) mp->first_ip_address; + start_host_order = clib_host_to_net_u32 (tmp[0]); + tmp = (u32 *) mp->last_ip_address; + end_host_order = clib_host_to_net_u32 (tmp[0]); + + count = (end_host_order - start_host_order) + 1; + + vrf_id = clib_host_to_net_u32 (mp->vrf_id); + + if (count > 1024) + nat44_ei_log_info ("%U - %U, %d addresses...", format_ip4_address, + mp->first_ip_address, format_ip4_address, + mp->last_ip_address, count); + + memcpy (&this_addr.as_u8, mp->first_ip_address, 4); + + for (i = 0; i < count; i++) + { + if (is_add) + rv = nat44_ei_add_address (nm, &this_addr, vrf_id); + else + rv = nat44_ei_del_address (nm, this_addr, 0); + + if (rv) + goto send_reply; + + if (nm->out2in_dpo) + nat44_ei_add_del_address_dpo (this_addr, is_add); + + increment_v4_address (&this_addr); + } + +send_reply: + REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_ADDRESS_RANGE_REPLY); +} + +static void +send_nat44_ei_address_details (nat44_ei_address_t *a, + vl_api_registration_t *reg, u32 context) +{ + vl_api_nat44_ei_address_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_ADDRESS_DETAILS + nm->msg_id_base); + clib_memcpy (rmp->ip_address, &(a->addr), 4); + if (a->fib_index != ~0) + { + fib_table_t *fib = fib_table_get (a->fib_index, FIB_PROTOCOL_IP4); + rmp->vrf_id = ntohl (fib->ft_table_id); + } + else + rmp->vrf_id = ~0; + rmp->context = context; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_address_dump_t_handler (vl_api_nat44_ei_address_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_address_t *a; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + vec_foreach (a, nm->addresses) + { + send_nat44_ei_address_details (a, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_interface_add_del_feature_t_handler ( + vl_api_nat44_ei_interface_add_del_feature_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_interface_add_del_feature_reply_t *rmp; + u32 sw_if_index = ntohl (mp->sw_if_index); + u8 is_del; + int rv = 0; + + is_del = !mp->is_add; + + VALIDATE_SW_IF_INDEX (mp); + + rv = nat44_ei_interface_add_del (sw_if_index, mp->flags & NAT44_EI_IF_INSIDE, + is_del); + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_NAT44_EI_INTERFACE_ADD_DEL_FEATURE_REPLY); +} + +static void +send_nat44_ei_interface_details (nat44_ei_interface_t *i, + vl_api_registration_t *reg, u32 context) +{ + vl_api_nat44_ei_interface_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_INTERFACE_DETAILS + nm->msg_id_base); + rmp->sw_if_index = ntohl (i->sw_if_index); + + if (nat44_ei_interface_is_inside (i)) + rmp->flags |= NAT44_EI_IF_INSIDE; + if (nat44_ei_interface_is_outside (i)) + rmp->flags |= NAT44_EI_IF_OUTSIDE; + + rmp->context = context; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_interface_dump_t_handler (vl_api_nat44_ei_interface_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_interface_t *i; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + pool_foreach (i, nm->interfaces) + { + send_nat44_ei_interface_details (i, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_interface_add_del_output_feature_t_handler ( + vl_api_nat44_ei_interface_add_del_output_feature_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_interface_add_del_output_feature_reply_t *rmp; + u32 sw_if_index = ntohl (mp->sw_if_index); + int rv = 0; + + VALIDATE_SW_IF_INDEX (mp); + + rv = nat44_ei_interface_add_del_output_feature ( + sw_if_index, mp->flags & NAT44_EI_IF_INSIDE, !mp->is_add); + + BAD_SW_IF_INDEX_LABEL; + REPLY_MACRO (VL_API_NAT44_EI_INTERFACE_ADD_DEL_OUTPUT_FEATURE_REPLY); +} + +static void +send_nat44_ei_interface_output_feature_details (nat44_ei_interface_t *i, + vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_interface_output_feature_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_INTERFACE_OUTPUT_FEATURE_DETAILS + nm->msg_id_base); + rmp->sw_if_index = ntohl (i->sw_if_index); + rmp->context = context; + + if (nat44_ei_interface_is_inside (i)) + rmp->flags |= NAT44_EI_IF_INSIDE; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_interface_output_feature_dump_t_handler ( + vl_api_nat44_ei_interface_output_feature_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_interface_t *i; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + pool_foreach (i, nm->output_feature_interfaces) + { + send_nat44_ei_interface_output_feature_details (i, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_add_del_static_mapping_t_handler ( + vl_api_nat44_ei_add_del_static_mapping_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_add_del_static_mapping_reply_t *rmp; + ip4_address_t local_addr, external_addr; + u16 local_port = 0, external_port = 0; + u32 vrf_id, external_sw_if_index; + int rv = 0; + nat_protocol_t proto; + u8 *tag = 0; + + memcpy (&local_addr.as_u8, mp->local_ip_address, 4); + memcpy (&external_addr.as_u8, mp->external_ip_address, 4); + + if (!(mp->flags & NAT44_EI_ADDR_ONLY_MAPPING)) + { + local_port = mp->local_port; + external_port = mp->external_port; + } + + vrf_id = clib_net_to_host_u32 (mp->vrf_id); + external_sw_if_index = clib_net_to_host_u32 (mp->external_sw_if_index); + proto = ip_proto_to_nat_proto (mp->protocol); + + mp->tag[sizeof (mp->tag) - 1] = 0; + tag = format (0, "%s", mp->tag); + vec_terminate_c_string (tag); + + rv = nat44_ei_add_del_static_mapping ( + local_addr, external_addr, local_port, external_port, proto, + external_sw_if_index, vrf_id, mp->flags & NAT44_EI_ADDR_ONLY_MAPPING, 0, + tag, mp->is_add); + + vec_free (tag); + + REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_STATIC_MAPPING_REPLY); +} + +static void +send_nat44_ei_static_mapping_details (nat44_ei_static_mapping_t *m, + vl_api_registration_t *reg, u32 context) +{ + vl_api_nat44_ei_static_mapping_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + u32 len = sizeof (*rmp); + + rmp = vl_msg_api_alloc (len); + clib_memset (rmp, 0, len); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_STATIC_MAPPING_DETAILS + nm->msg_id_base); + + clib_memcpy (rmp->local_ip_address, &(m->local_addr), 4); + clib_memcpy (rmp->external_ip_address, &(m->external_addr), 4); + rmp->external_sw_if_index = ~0; + rmp->vrf_id = htonl (m->vrf_id); + rmp->context = context; + + if (nat44_ei_is_addr_only_static_mapping (m)) + { + rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING; + } + else + { + rmp->protocol = nat_proto_to_ip_proto (m->proto); + rmp->external_port = m->external_port; + rmp->local_port = m->local_port; + } + + if (m->tag) + strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag)); + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +send_nat44_ei_static_map_resolve_details (nat44_ei_static_map_resolve_t *m, + vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_static_mapping_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_STATIC_MAPPING_DETAILS + nm->msg_id_base); + clib_memcpy (rmp->local_ip_address, &(m->l_addr), 4); + rmp->external_sw_if_index = htonl (m->sw_if_index); + rmp->vrf_id = htonl (m->vrf_id); + rmp->context = context; + + if (m->addr_only) + { + rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING; + } + else + { + rmp->protocol = nat_proto_to_ip_proto (m->proto); + rmp->external_port = m->e_port; + rmp->local_port = m->l_port; + } + if (m->tag) + strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag)); + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_static_mapping_dump_t_handler ( + vl_api_nat44_ei_static_mapping_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_static_mapping_t *m; + nat44_ei_static_map_resolve_t *rp; + int j; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + pool_foreach (m, nm->static_mappings) + { + if (!nat44_ei_is_identity_static_mapping (m)) + send_nat44_ei_static_mapping_details (m, reg, mp->context); + } + + for (j = 0; j < vec_len (nm->to_resolve); j++) + { + rp = nm->to_resolve + j; + if (!rp->identity_nat) + send_nat44_ei_static_map_resolve_details (rp, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_add_del_identity_mapping_t_handler ( + vl_api_nat44_ei_add_del_identity_mapping_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_add_del_identity_mapping_reply_t *rmp; + ip4_address_t addr; + u16 port = 0; + u32 vrf_id, sw_if_index; + int rv = 0; + nat_protocol_t proto = NAT_PROTOCOL_OTHER; + u8 *tag = 0; + + if (!(mp->flags & NAT44_EI_ADDR_ONLY_MAPPING)) + { + port = mp->port; + proto = ip_proto_to_nat_proto (mp->protocol); + } + vrf_id = clib_net_to_host_u32 (mp->vrf_id); + sw_if_index = clib_net_to_host_u32 (mp->sw_if_index); + if (sw_if_index != ~0) + addr.as_u32 = 0; + else + memcpy (&addr.as_u8, mp->ip_address, 4); + mp->tag[sizeof (mp->tag) - 1] = 0; + tag = format (0, "%s", mp->tag); + vec_terminate_c_string (tag); + + rv = nat44_ei_add_del_static_mapping ( + addr, addr, port, port, proto, sw_if_index, vrf_id, + mp->flags & NAT44_EI_ADDR_ONLY_MAPPING, 1, tag, mp->is_add); + + vec_free (tag); + + REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_IDENTITY_MAPPING_REPLY); +} + +static void +send_nat44_ei_identity_mapping_details (nat44_ei_static_mapping_t *m, + int index, vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_identity_mapping_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_lb_addr_port_t *local = pool_elt_at_index (m->locals, index); + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_IDENTITY_MAPPING_DETAILS + nm->msg_id_base); + + if (nat44_ei_is_addr_only_static_mapping (m)) + rmp->flags |= NAT44_EI_ADDR_ONLY_MAPPING; + + clib_memcpy (rmp->ip_address, &(m->local_addr), 4); + rmp->port = m->local_port; + rmp->sw_if_index = ~0; + rmp->vrf_id = htonl (local->vrf_id); + rmp->protocol = nat_proto_to_ip_proto (m->proto); + rmp->context = context; + if (m->tag) + strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag)); + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +send_nat44_ei_identity_map_resolve_details (nat44_ei_static_map_resolve_t *m, + vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_identity_mapping_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_IDENTITY_MAPPING_DETAILS + nm->msg_id_base); + + if (m->addr_only) + rmp->flags = (vl_api_nat44_ei_config_flags_t) NAT44_EI_ADDR_ONLY_MAPPING; + + rmp->port = m->l_port; + rmp->sw_if_index = htonl (m->sw_if_index); + rmp->vrf_id = htonl (m->vrf_id); + rmp->protocol = nat_proto_to_ip_proto (m->proto); + rmp->context = context; + if (m->tag) + strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag)); + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_identity_mapping_dump_t_handler ( + vl_api_nat44_ei_identity_mapping_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_static_mapping_t *m; + nat44_ei_static_map_resolve_t *rp; + int j; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + pool_foreach (m, nm->static_mappings) + { + if (nat44_ei_is_identity_static_mapping (m)) + { + pool_foreach_index (j, m->locals) + { + send_nat44_ei_identity_mapping_details (m, j, reg, mp->context); + } + } + } + + for (j = 0; j < vec_len (nm->to_resolve); j++) + { + rp = nm->to_resolve + j; + if (rp->identity_nat) + send_nat44_ei_identity_map_resolve_details (rp, reg, mp->context); + } +} + +static void +vl_api_nat44_ei_add_del_interface_addr_t_handler ( + vl_api_nat44_ei_add_del_interface_addr_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_add_del_interface_addr_reply_t *rmp; + u32 sw_if_index = ntohl (mp->sw_if_index); + int rv = 0; + u8 is_del; + + is_del = !mp->is_add; + + VALIDATE_SW_IF_INDEX (mp); + + rv = nat44_ei_add_interface_address (nm, sw_if_index, is_del); + + BAD_SW_IF_INDEX_LABEL; + REPLY_MACRO (VL_API_NAT44_EI_ADD_DEL_INTERFACE_ADDR_REPLY); +} + +static void +send_nat44_ei_interface_addr_details (u32 sw_if_index, + vl_api_registration_t *reg, u32 context) +{ + vl_api_nat44_ei_interface_addr_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_INTERFACE_ADDR_DETAILS + nm->msg_id_base); + rmp->sw_if_index = ntohl (sw_if_index); + rmp->context = context; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_interface_addr_dump_t_handler ( + vl_api_nat44_ei_interface_addr_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + u32 *i; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + vec_foreach (i, nm->auto_add_sw_if_indices) + send_nat44_ei_interface_addr_details (*i, reg, mp->context); +} + +static void +send_nat44_ei_user_details (nat44_ei_user_t *u, vl_api_registration_t *reg, + u32 context) +{ + vl_api_nat44_ei_user_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + ip4_main_t *im = &ip4_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_NAT44_EI_USER_DETAILS + nm->msg_id_base); + + if (!pool_is_free_index (im->fibs, u->fib_index)) + { + fib_table_t *fib = fib_table_get (u->fib_index, FIB_PROTOCOL_IP4); + rmp->vrf_id = ntohl (fib->ft_table_id); + } + + clib_memcpy (rmp->ip_address, &(u->addr), 4); + rmp->nsessions = ntohl (u->nsessions); + rmp->nstaticsessions = ntohl (u->nstaticsessions); + rmp->context = context; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_user_dump_t_handler (vl_api_nat44_ei_user_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_main_per_thread_data_t *tnm; + nat44_ei_user_t *u; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + vec_foreach (tnm, nm->per_thread_data) + { + pool_foreach (u, tnm->users) + { + send_nat44_ei_user_details (u, reg, mp->context); + } + } +} + +static void +send_nat44_ei_user_session_details (nat44_ei_session_t *s, + vl_api_registration_t *reg, u32 context) +{ + vl_api_nat44_ei_user_session_details_t *rmp; + nat44_ei_main_t *nm = &nat44_ei_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_NAT44_EI_USER_SESSION_DETAILS + nm->msg_id_base); + clib_memcpy (rmp->outside_ip_address, (&s->out2in.addr), 4); + clib_memcpy (rmp->inside_ip_address, (&s->in2out.addr), 4); + + if (nat44_ei_is_session_static (s)) + rmp->flags |= NAT44_EI_STATIC_MAPPING; + + rmp->last_heard = clib_host_to_net_u64 ((u64) s->last_heard); + rmp->total_bytes = clib_host_to_net_u64 (s->total_bytes); + rmp->total_pkts = ntohl (s->total_pkts); + rmp->context = context; + if (nat44_ei_is_unk_proto_session (s)) + { + rmp->outside_port = 0; + rmp->inside_port = 0; + rmp->protocol = ntohs (s->in2out.port); + } + else + { + rmp->outside_port = s->out2in.port; + rmp->inside_port = s->in2out.port; + rmp->protocol = ntohs (nat_proto_to_ip_proto (s->nat_proto)); + } + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void +vl_api_nat44_ei_user_session_dump_t_handler ( + vl_api_nat44_ei_user_session_dump_t *mp) +{ + vl_api_registration_t *reg; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_main_per_thread_data_t *tnm; + nat44_ei_session_t *s; + clib_bihash_kv_8_8_t key, value; + nat44_ei_user_key_t ukey; + nat44_ei_user_t *u; + u32 session_index, head_index, elt_index; + dlist_elt_t *head, *elt; + ip4_header_t ip; + + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + clib_memcpy (&ukey.addr, mp->ip_address, 4); + ip.src_address.as_u32 = ukey.addr.as_u32; + ukey.fib_index = fib_table_find (FIB_PROTOCOL_IP4, ntohl (mp->vrf_id)); + key.key = ukey.as_u64; + if (nm->num_workers > 1) + tnm = vec_elt_at_index (nm->per_thread_data, + nm->worker_in2out_cb (&ip, ukey.fib_index, 0)); + else + tnm = vec_elt_at_index (nm->per_thread_data, nm->num_workers); + + if (clib_bihash_search_8_8 (&tnm->user_hash, &key, &value)) + return; + u = pool_elt_at_index (tnm->users, value.value); + if (!u->nsessions && !u->nstaticsessions) + return; + + head_index = u->sessions_per_user_list_head_index; + head = pool_elt_at_index (tnm->list_pool, head_index); + elt_index = head->next; + elt = pool_elt_at_index (tnm->list_pool, elt_index); + session_index = elt->value; + while (session_index != ~0) + { + s = pool_elt_at_index (tnm->sessions, session_index); + + send_nat44_ei_user_session_details (s, reg, mp->context); + + elt_index = elt->next; + elt = pool_elt_at_index (tnm->list_pool, elt_index); + session_index = elt->value; + } +} + +static void +vl_api_nat44_ei_del_session_t_handler (vl_api_nat44_ei_del_session_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_del_session_reply_t *rmp; + ip4_address_t addr, eh_addr; + u16 port; + u32 vrf_id; + int rv = 0; + u8 is_in; + nat_protocol_t proto; + + memcpy (&addr.as_u8, mp->address, 4); + port = mp->port; + vrf_id = clib_net_to_host_u32 (mp->vrf_id); + proto = ip_proto_to_nat_proto (mp->protocol); + memcpy (&eh_addr.as_u8, mp->ext_host_address, 4); + + // is session inside ? + is_in = mp->flags & NAT44_EI_IF_INSIDE; + + rv = nat44_ei_del_session (nm, &addr, port, proto, vrf_id, is_in); + + REPLY_MACRO (VL_API_NAT44_EI_DEL_SESSION_REPLY); +} + +static void +vl_api_nat44_ei_forwarding_enable_disable_t_handler ( + vl_api_nat44_ei_forwarding_enable_disable_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_forwarding_enable_disable_reply_t *rmp; + int rv = 0; + u32 *ses_to_be_removed = 0, *ses_index; + nat44_ei_main_per_thread_data_t *tnm; + nat44_ei_session_t *s; + + nm->forwarding_enabled = mp->enable != 0; + + if (mp->enable == 0) + { + vec_foreach (tnm, nm->per_thread_data) + { + vec_foreach (ses_index, ses_to_be_removed) + { + s = pool_elt_at_index (tnm->sessions, ses_index[0]); + nat44_ei_free_session_data (nm, s, tnm - nm->per_thread_data, 0); + nat44_ei_delete_session (nm, s, tnm - nm->per_thread_data); + } + + vec_free (ses_to_be_removed); + } + } + + REPLY_MACRO (VL_API_NAT44_EI_FORWARDING_ENABLE_DISABLE_REPLY); +} + +static void +vl_api_nat44_ei_set_fq_options_t_handler (vl_api_nat44_ei_set_fq_options_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_set_fq_options_reply_t *rmp; + int rv = 0; + u32 frame_queue_nelts = ntohl (mp->frame_queue_nelts); + rv = nat44_ei_set_frame_queue_nelts (frame_queue_nelts); + REPLY_MACRO (VL_API_NAT44_EI_SET_FQ_OPTIONS_REPLY); +} + +static void +vl_api_nat44_ei_show_fq_options_t_handler ( + vl_api_nat44_ei_show_fq_options_t *mp) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + vl_api_nat44_ei_show_fq_options_reply_t *rmp; + int rv = 0; + /* clang-format off */ + REPLY_MACRO2_ZERO (VL_API_NAT44_EI_SHOW_FQ_OPTIONS_REPLY, + ({ + rmp->frame_queue_nelts = htonl (nm->frame_queue_nelts); + })); + /* clang-format on */ +} + +/* API definitions */ +#include <vnet/format_fns.h> +#include <nat/nat44-ei/nat44_ei.api.c> + +/* Set up the API message handling tables */ +clib_error_t * +nat44_ei_api_hookup (vlib_main_t *vm) +{ + nat44_ei_main_t *nm = &nat44_ei_main; + nm->msg_id_base = setup_message_id_table (); + return 0; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |