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authorFilip Varga <fivarga@cisco.com>2021-02-17 14:34:54 +0100
committerOle Tr�an <otroan@employees.org>2021-02-24 19:25:25 +0000
commit0eaf4e6784efb2d058fe2f031578251b6bcc0aa8 (patch)
treecc0c2b485bfee51068fa4970acc9f95ec595e8e5 /src/plugins/nat/nat44-ed/nat44_ed_api.c
parent5db2f4a4312112ab57043ce88f10edc4acc141ec (diff)
nat: Final NAT44 EI/ED split patch
This patch achieves complete separation of endpoint-dependent and endpoint-independent IPv4 NAT features. Some common stuff is also moved to NAT library. Type: refactor Change-Id: I52468b7e2b5ac28958a2baf8e2ea01787322e801 Signed-off-by: Filip Varga <fivarga@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat44-ed/nat44_ed_api.c')
-rw-r--r--src/plugins/nat/nat44-ed/nat44_ed_api.c1541
1 files changed, 1541 insertions, 0 deletions
diff --git a/src/plugins/nat/nat44-ed/nat44_ed_api.c b/src/plugins/nat/nat44-ed/nat44_ed_api.c
new file mode 100644
index 00000000000..ea812da9633
--- /dev/null
+++ b/src/plugins/nat/nat44-ed/nat44_ed_api.c
@@ -0,0 +1,1541 @@
+/*
+ * 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.
+ */
+/**
+ * @file
+ * @brief NAT44 plugin API implementation
+ */
+
+#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-ed/nat44_ed.h>
+
+#include <nat/nat44-ed/nat44_ed.api_enum.h>
+#include <nat/nat44-ed/nat44_ed.api_types.h>
+
+#define REPLY_MSG_ID_BASE sm->msg_id_base
+#include <vlibapi/api_helper_macros.h>
+
+static void
+vl_api_nat_control_ping_t_handler (vl_api_nat_control_ping_t * mp)
+{
+ vl_api_nat_control_ping_reply_t *rmp;
+ snat_main_t *sm = &snat_main;
+ int rv = 0;
+
+ REPLY_MACRO2 (VL_API_NAT_CONTROL_PING_REPLY,
+ ({
+ rmp->vpe_pid = ntohl (getpid ());
+ }));
+}
+
+static void
+vl_api_nat_show_config_t_handler (vl_api_nat_show_config_t * mp)
+{
+ vl_api_nat_show_config_reply_t *rmp;
+ snat_main_t *sm = &snat_main;
+ int rv = 0;
+
+ REPLY_MACRO2_ZERO (VL_API_NAT_SHOW_CONFIG_REPLY,
+ ({
+ rmp->translation_buckets = htonl (sm->translation_buckets);
+ rmp->user_buckets = 0;
+ rmp->max_translations_per_user = 0;
+ rmp->outside_vrf_id = htonl (sm->outside_vrf_id);
+ rmp->inside_vrf_id = htonl (sm->inside_vrf_id);
+ rmp->static_mapping_only = sm->static_mapping_only;
+ rmp->static_mapping_connection_tracking =
+ sm->static_mapping_connection_tracking;
+ rmp->endpoint_dependent = 1;
+ rmp->out2in_dpo = 0;
+ }));
+}
+
+static void
+vl_api_nat_show_config_2_t_handler (vl_api_nat_show_config_2_t * mp)
+{
+ vl_api_nat_show_config_2_reply_t *rmp;
+ snat_main_t *sm = &snat_main;
+ int rv = 0;
+
+ REPLY_MACRO2_ZERO (VL_API_NAT_SHOW_CONFIG_2_REPLY,
+ ({
+ rmp->translation_buckets = htonl (sm->translation_buckets);
+ rmp->user_buckets = 0;
+ rmp->max_translations_per_user = 0;
+ rmp->outside_vrf_id = htonl (sm->outside_vrf_id);
+ rmp->inside_vrf_id = htonl (sm->inside_vrf_id);
+ rmp->static_mapping_only = sm->static_mapping_only;
+ rmp->static_mapping_connection_tracking =
+ sm->static_mapping_connection_tracking;
+ rmp->endpoint_dependent = 1;
+ rmp->out2in_dpo = 0;
+ rmp->max_translations_per_thread =
+ clib_net_to_host_u32 (sm->max_translations_per_thread);
+ rmp->max_users_per_thread = 0;
+ }));
+}
+
+static void
+vl_api_nat44_show_running_config_t_handler (vl_api_nat44_show_running_config_t
+ * mp)
+{
+ vl_api_nat44_show_running_config_reply_t *rmp;
+ snat_main_t *sm = &snat_main;
+ nat44_config_t *rc = &sm->rconfig;
+ int rv = 0;
+
+ REPLY_MACRO2_ZERO (VL_API_NAT44_SHOW_RUNNING_CONFIG_REPLY,
+ ({
+ rmp->inside_vrf = htonl (rc->inside_vrf);
+ rmp->outside_vrf = htonl (rc->outside_vrf);
+
+ rmp->sessions = htonl (rc->sessions);
+ rmp->translation_buckets = htonl (sm->translation_buckets);
+
+ // OBSOLETE
+ rmp->users = 0;
+ rmp->user_buckets = 0;
+ rmp->user_sessions = 0;
+
+ rmp->timeouts.udp = htonl (sm->timeouts.udp);
+ rmp->timeouts.tcp_established = htonl (sm->timeouts.tcp.established);
+ rmp->timeouts.tcp_transitory = htonl (sm->timeouts.tcp.transitory);
+ rmp->timeouts.icmp = htonl (sm->timeouts.icmp);
+
+ rmp->forwarding_enabled = sm->forwarding_enabled == 1;
+ // consider how to split functionality between subplugins
+ rmp->ipfix_logging_enabled = nat_ipfix_logging_enabled ();
+ rmp->flags |= NAT44_IS_ENDPOINT_DEPENDENT;
+ if (rc->static_mapping_only)
+ rmp->flags |= NAT44_IS_STATIC_MAPPING_ONLY;
+ if (rc->connection_tracking)
+ rmp->flags |= NAT44_IS_CONNECTION_TRACKING;
+ }));
+}
+
+static void
+vl_api_nat_set_workers_t_handler (vl_api_nat_set_workers_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_workers_reply_t *rmp;
+ int rv = 0;
+ uword *bitmap = 0;
+ u64 mask;
+
+ mask = clib_net_to_host_u64 (mp->worker_mask);
+
+ if (sm->num_workers < 2)
+ {
+ rv = VNET_API_ERROR_FEATURE_DISABLED;
+ goto send_reply;
+ }
+
+ bitmap = clib_bitmap_set_multiple (bitmap, 0, mask, BITS (mask));
+ rv = snat_set_workers (bitmap);
+ clib_bitmap_free (bitmap);
+
+send_reply:
+ REPLY_MACRO (VL_API_NAT_SET_WORKERS_REPLY);
+}
+
+static void
+send_nat_worker_details (u32 worker_index, vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat_worker_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+ vlib_worker_thread_t *w =
+ vlib_worker_threads + worker_index + sm->first_worker_index;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_NAT_WORKER_DETAILS + sm->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_nat_worker_dump_t_handler (vl_api_nat_worker_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ u32 *worker_index;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vec_foreach (worker_index, sm->workers)
+ {
+ send_nat_worker_details (*worker_index, reg, mp->context);
+ }
+}
+
+static void
+vl_api_nat44_session_cleanup_t_handler (vl_api_nat44_session_cleanup_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_session_cleanup_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT44_SESSION_CLEANUP_REPLY);
+}
+
+static void
+vl_api_nat44_set_session_limit_t_handler (vl_api_nat44_set_session_limit_t *
+ mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_set_session_limit_reply_t *rmp;
+ int rv = 0;
+
+ rv = nat44_set_session_limit
+ (ntohl (mp->session_limit), ntohl (mp->vrf_id));
+
+ REPLY_MACRO (VL_API_NAT44_SET_SESSION_LIMIT_REPLY);
+}
+
+static void
+vl_api_nat_set_log_level_t_handler (vl_api_nat_set_log_level_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_log_level_reply_t *rmp;
+ int rv = 0;
+
+ if (sm->log_level > NAT_LOG_DEBUG)
+ rv = VNET_API_ERROR_UNSUPPORTED;
+ else
+ sm->log_level = mp->log_level;
+
+ REPLY_MACRO (VL_API_NAT_SET_WORKERS_REPLY);
+}
+
+static void
+ vl_api_nat44_plugin_enable_disable_t_handler
+ (vl_api_nat44_plugin_enable_disable_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ nat44_config_t c = { 0 };
+ vl_api_nat44_plugin_enable_disable_reply_t *rmp;
+ int rv = 0;
+
+ if (mp->enable)
+ {
+ if (mp->flags & NAT44_API_IS_OUT2IN_DPO || mp->users ||
+ mp->user_sessions)
+ {
+ rv = VNET_API_ERROR_UNSUPPORTED;
+ }
+ else
+ {
+ c.static_mapping_only = mp->flags & NAT44_API_IS_STATIC_MAPPING_ONLY;
+ c.connection_tracking = mp->flags & NAT44_API_IS_CONNECTION_TRACKING;
+
+ c.inside_vrf = ntohl (mp->inside_vrf);
+ c.outside_vrf = ntohl (mp->outside_vrf);
+
+ c.sessions = ntohl (mp->sessions);
+
+ rv = nat44_plugin_enable (c);
+ }
+ }
+ else
+ {
+ rv = nat44_plugin_disable ();
+ }
+
+ REPLY_MACRO (VL_API_NAT44_PLUGIN_ENABLE_DISABLE_REPLY);
+}
+
+static void
+vl_api_nat_ipfix_enable_disable_t_handler (vl_api_nat_ipfix_enable_disable_t *
+ mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_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_NAT_IPFIX_ENABLE_DISABLE_REPLY);
+}
+
+static void
+vl_api_nat_set_timeouts_t_handler (vl_api_nat_set_timeouts_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_timeouts_reply_t *rmp;
+ int rv = 0;
+
+ sm->timeouts.udp = ntohl (mp->udp);
+ sm->timeouts.tcp.established = ntohl (mp->tcp_established);
+ sm->timeouts.tcp.transitory = ntohl (mp->tcp_transitory);
+ sm->timeouts.icmp = ntohl (mp->icmp);
+
+ REPLY_MACRO (VL_API_NAT_SET_TIMEOUTS_REPLY);
+}
+
+static void
+vl_api_nat_get_timeouts_t_handler (vl_api_nat_get_timeouts_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_get_timeouts_reply_t *rmp;
+ int rv = 0;
+
+ REPLY_MACRO2 (VL_API_NAT_GET_TIMEOUTS_REPLY,
+ ({
+ rmp->udp = htonl (sm->timeouts.udp);
+ rmp->tcp_established = htonl (sm->timeouts.tcp.established);
+ rmp->tcp_transitory = htonl (sm->timeouts.tcp.transitory);
+ rmp->icmp = htonl (sm->timeouts.icmp);
+ }))
+}
+
+static void
+ vl_api_nat_set_addr_and_port_alloc_alg_t_handler
+ (vl_api_nat_set_addr_and_port_alloc_alg_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_addr_and_port_alloc_alg_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_SET_ADDR_AND_PORT_ALLOC_ALG_REPLY);
+}
+
+static void
+ vl_api_nat_get_addr_and_port_alloc_alg_t_handler
+ (vl_api_nat_get_addr_and_port_alloc_alg_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_get_addr_and_port_alloc_alg_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_GET_ADDR_AND_PORT_ALLOC_ALG_REPLY);
+}
+
+static void
+vl_api_nat_set_mss_clamping_t_handler (vl_api_nat_set_mss_clamping_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_set_mss_clamping_reply_t *rmp;
+ int rv = 0;
+
+ if (mp->enable)
+ sm->mss_clamping = ntohs (mp->mss_value);
+ else
+ sm->mss_clamping = 0;
+
+ REPLY_MACRO (VL_API_NAT_SET_MSS_CLAMPING_REPLY);
+}
+
+static void
+vl_api_nat_get_mss_clamping_t_handler (vl_api_nat_get_mss_clamping_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_get_mss_clamping_reply_t *rmp;
+ int rv = 0;
+
+ REPLY_MACRO2 (VL_API_NAT_GET_MSS_CLAMPING_REPLY,
+ ({
+ rmp->enable = sm->mss_clamping ? 1 : 0;
+ rmp->mss_value = htons (sm->mss_clamping);
+ }))
+}
+
+static void
+vl_api_nat_ha_set_listener_t_handler (vl_api_nat_ha_set_listener_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_set_listener_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_SET_LISTENER_REPLY);
+}
+
+static void
+vl_api_nat_ha_get_listener_t_handler (vl_api_nat_ha_get_listener_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_get_listener_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_GET_LISTENER_REPLY);
+}
+
+static void
+vl_api_nat_ha_set_failover_t_handler (vl_api_nat_ha_set_failover_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_set_failover_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_SET_FAILOVER_REPLY);
+}
+
+static void
+vl_api_nat_ha_get_failover_t_handler (vl_api_nat_ha_get_failover_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_get_failover_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_GET_FAILOVER_REPLY);
+}
+
+static void
+vl_api_nat_ha_flush_t_handler (vl_api_nat_ha_flush_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_flush_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_FLUSH_REPLY);
+}
+
+static void
+vl_api_nat_ha_resync_t_handler (vl_api_nat_ha_resync_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat_ha_resync_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT_HA_RESYNC_REPLY);
+}
+
+static void
+vl_api_nat44_del_user_t_handler (vl_api_nat44_del_user_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_del_user_reply_t *rmp;
+ int rv = VNET_API_ERROR_UNSUPPORTED;
+ REPLY_MACRO (VL_API_NAT44_DEL_USER_REPLY);
+}
+
+static void
+ vl_api_nat44_add_del_address_range_t_handler
+ (vl_api_nat44_add_del_address_range_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_address_range_reply_t *rmp;
+ ip4_address_t this_addr;
+ u8 is_add, twice_nat;
+ u32 start_host_order, end_host_order;
+ u32 vrf_id;
+ int i, count;
+ int rv = 0;
+ u32 *tmp;
+
+ if (sm->static_mapping_only)
+ {
+ rv = VNET_API_ERROR_FEATURE_DISABLED;
+ goto send_reply;
+ }
+
+ is_add = mp->is_add;
+ twice_nat = mp->flags & NAT_API_IS_TWICE_NAT;
+
+ 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)
+ nat_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 = snat_add_address (sm, &this_addr, vrf_id, twice_nat);
+ else
+ rv = snat_del_address (sm, this_addr, 0, twice_nat);
+
+ if (rv)
+ goto send_reply;
+
+ increment_v4_address (&this_addr);
+ }
+
+send_reply:
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_ADDRESS_RANGE_REPLY);
+}
+
+static void
+send_nat44_address_details (snat_address_t * a,
+ vl_api_registration_t * reg, u32 context,
+ u8 twice_nat)
+{
+ vl_api_nat44_address_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_NAT44_ADDRESS_DETAILS + sm->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;
+ if (twice_nat)
+ rmp->flags |= NAT_API_IS_TWICE_NAT;
+ rmp->context = context;
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_nat44_address_dump_t_handler (vl_api_nat44_address_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_address_t *a;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vec_foreach (a, sm->addresses)
+ send_nat44_address_details (a, reg, mp->context, 0);
+ vec_foreach (a, sm->twice_nat_addresses)
+ send_nat44_address_details (a, reg, mp->context, 1);
+}
+
+static void
+ vl_api_nat44_interface_add_del_feature_t_handler
+ (vl_api_nat44_interface_add_del_feature_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_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 =
+ snat_interface_add_del (sw_if_index, mp->flags & NAT_API_IS_INSIDE,
+ is_del);
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ REPLY_MACRO (VL_API_NAT44_INTERFACE_ADD_DEL_FEATURE_REPLY);
+}
+
+static void
+send_nat44_interface_details (snat_interface_t * i,
+ vl_api_registration_t * reg, u32 context)
+{
+ vl_api_nat44_interface_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_NAT44_INTERFACE_DETAILS + sm->msg_id_base);
+ rmp->sw_if_index = ntohl (i->sw_if_index);
+
+ if (nat_interface_is_inside (i))
+ rmp->flags |= NAT_API_IS_INSIDE;
+ if (nat_interface_is_outside (i))
+ rmp->flags |= NAT_API_IS_OUTSIDE;
+
+ rmp->context = context;
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_nat44_interface_dump_t_handler (vl_api_nat44_interface_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_interface_t *i;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ pool_foreach (i, sm->interfaces)
+ {
+ send_nat44_interface_details(i, reg, mp->context);
+ }
+}
+
+static void
+ vl_api_nat44_interface_add_del_output_feature_t_handler
+ (vl_api_nat44_interface_add_del_output_feature_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_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 = snat_interface_add_del_output_feature (sw_if_index,
+ mp->flags & NAT_API_IS_INSIDE,
+ !mp->is_add);
+
+ BAD_SW_IF_INDEX_LABEL;
+ REPLY_MACRO (VL_API_NAT44_INTERFACE_ADD_DEL_OUTPUT_FEATURE_REPLY);
+}
+
+static void
+send_nat44_interface_output_feature_details (snat_interface_t * i,
+ vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat44_interface_output_feature_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_INTERFACE_OUTPUT_FEATURE_DETAILS + sm->msg_id_base);
+ rmp->sw_if_index = ntohl (i->sw_if_index);
+ rmp->context = context;
+
+ if (nat_interface_is_inside (i))
+ rmp->flags |= NAT_API_IS_INSIDE;
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+ vl_api_nat44_interface_output_feature_dump_t_handler
+ (vl_api_nat44_interface_output_feature_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_interface_t *i;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ pool_foreach (i, sm->output_feature_interfaces)
+ {
+ send_nat44_interface_output_feature_details (i, reg, mp->context);
+ }
+}
+
+static void
+ vl_api_nat44_add_del_static_mapping_t_handler
+ (vl_api_nat44_add_del_static_mapping_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_static_mapping_reply_t *rmp;
+ ip4_address_t local_addr, external_addr, pool_addr = { 0 };
+ u16 local_port = 0, external_port = 0;
+ u32 vrf_id, external_sw_if_index;
+ twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
+ 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 & NAT_API_IS_ADDR_ONLY))
+ {
+ 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);
+
+ if (mp->flags & NAT_API_IS_TWICE_NAT)
+ twice_nat = TWICE_NAT;
+ else if (mp->flags & NAT_API_IS_SELF_TWICE_NAT)
+ twice_nat = TWICE_NAT_SELF;
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
+ vec_terminate_c_string (tag);
+
+ rv = snat_add_static_mapping (
+ local_addr, external_addr, local_port, external_port, vrf_id,
+ mp->flags & NAT_API_IS_ADDR_ONLY, external_sw_if_index, proto, mp->is_add,
+ twice_nat, mp->flags & NAT_API_IS_OUT2IN_ONLY, tag, 0, pool_addr, 0);
+ vec_free (tag);
+
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_STATIC_MAPPING_REPLY);
+}
+
+static void
+ vl_api_nat44_add_del_static_mapping_v2_t_handler
+ (vl_api_nat44_add_del_static_mapping_v2_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_static_mapping_v2_reply_t *rmp;
+ ip4_address_t local_addr, external_addr, pool_addr;
+ u16 local_port = 0, external_port = 0;
+ u32 vrf_id, external_sw_if_index;
+ twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
+ int rv = 0;
+ nat_protocol_t proto;
+ u8 *tag = 0;
+
+ memcpy (&pool_addr.as_u8, mp->pool_ip_address, 4);
+ memcpy (&local_addr.as_u8, mp->local_ip_address, 4);
+ memcpy (&external_addr.as_u8, mp->external_ip_address, 4);
+
+ if (!(mp->flags & NAT_API_IS_ADDR_ONLY))
+ {
+ 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);
+
+ if (mp->flags & NAT_API_IS_TWICE_NAT)
+ twice_nat = TWICE_NAT;
+ else if (mp->flags & NAT_API_IS_SELF_TWICE_NAT)
+ twice_nat = TWICE_NAT_SELF;
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
+ vec_terminate_c_string (tag);
+
+ rv = snat_add_static_mapping (local_addr, external_addr, local_port,
+ external_port, vrf_id,
+ mp->flags & NAT_API_IS_ADDR_ONLY,
+ external_sw_if_index, proto,
+ mp->is_add, twice_nat,
+ mp->flags & NAT_API_IS_OUT2IN_ONLY, tag, 0,
+ pool_addr, mp->match_pool);
+ vec_free (tag);
+
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_STATIC_MAPPING_V2_REPLY);
+}
+
+static void
+send_nat44_static_mapping_details (snat_static_mapping_t * m,
+ vl_api_registration_t * reg, u32 context)
+{
+ vl_api_nat44_static_mapping_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+ u32 len = sizeof (*rmp);
+
+ rmp = vl_msg_api_alloc (len);
+ clib_memset (rmp, 0, len);
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_STATIC_MAPPING_DETAILS + sm->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 (m->twice_nat == TWICE_NAT)
+ rmp->flags |= NAT_API_IS_TWICE_NAT;
+ else if (m->twice_nat == TWICE_NAT_SELF)
+ rmp->flags |= NAT_API_IS_SELF_TWICE_NAT;
+
+ if (is_out2in_only_static_mapping (m))
+ rmp->flags |= NAT_API_IS_OUT2IN_ONLY;
+
+ if (is_addr_only_static_mapping (m))
+ {
+ rmp->flags |= NAT_API_IS_ADDR_ONLY;
+ }
+ 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_static_map_resolve_details (snat_static_map_resolve_t * m,
+ vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat44_static_mapping_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_STATIC_MAPPING_DETAILS + sm->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->twice_nat)
+ rmp->flags |= NAT_API_IS_TWICE_NAT;
+
+ if (m->addr_only)
+ {
+ rmp->flags |= NAT_API_IS_ADDR_ONLY;
+ }
+ 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_static_mapping_dump_t_handler (vl_api_nat44_static_mapping_dump_t
+ * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_static_mapping_t *m;
+ snat_static_map_resolve_t *rp;
+ int j;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (!is_identity_static_mapping(m) && !is_lb_static_mapping (m))
+ send_nat44_static_mapping_details (m, reg, mp->context);
+ }
+
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ if (!rp->identity_nat)
+ send_nat44_static_map_resolve_details (rp, reg, mp->context);
+ }
+}
+
+static void
+ vl_api_nat44_add_del_identity_mapping_t_handler
+ (vl_api_nat44_add_del_identity_mapping_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_identity_mapping_reply_t *rmp;
+ ip4_address_t addr, pool_addr = { 0 };
+ 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 & NAT_API_IS_ADDR_ONLY))
+ {
+ 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 =
+ snat_add_static_mapping (addr, addr, port, port, vrf_id,
+ mp->flags & NAT_API_IS_ADDR_ONLY, sw_if_index,
+ proto, mp->is_add, 0, 0, tag, 1, pool_addr, 0);
+ vec_free (tag);
+
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_IDENTITY_MAPPING_REPLY);
+}
+
+static void
+send_nat44_identity_mapping_details (snat_static_mapping_t * m, int index,
+ vl_api_registration_t * reg, u32 context)
+{
+ vl_api_nat44_identity_mapping_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+ nat44_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_IDENTITY_MAPPING_DETAILS + sm->msg_id_base);
+
+ if (is_addr_only_static_mapping (m))
+ rmp->flags |= NAT_API_IS_ADDR_ONLY;
+
+ 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_identity_map_resolve_details (snat_static_map_resolve_t * m,
+ vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat44_identity_mapping_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_IDENTITY_MAPPING_DETAILS + sm->msg_id_base);
+
+ if (m->addr_only)
+ rmp->flags = (vl_api_nat_config_flags_t) NAT_API_IS_ADDR_ONLY;
+
+ 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_identity_mapping_dump_t_handler
+ (vl_api_nat44_identity_mapping_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_static_mapping_t *m;
+ snat_static_map_resolve_t *rp;
+ int j;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (is_identity_static_mapping(m) && !is_lb_static_mapping (m))
+ {
+ pool_foreach_index (j, m->locals)
+ {
+ send_nat44_identity_mapping_details (m, j, reg, mp->context);
+ }
+ }
+ }
+
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ if (rp->identity_nat)
+ send_nat44_identity_map_resolve_details (rp, reg, mp->context);
+ }
+}
+
+static void
+ vl_api_nat44_add_del_interface_addr_t_handler
+ (vl_api_nat44_add_del_interface_addr_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_interface_addr_reply_t *rmp;
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+ int rv = 0;
+ u8 is_del;
+
+ if (sm->static_mapping_only)
+ {
+ rv = VNET_API_ERROR_FEATURE_DISABLED;
+ goto send_reply;
+ }
+
+ is_del = !mp->is_add;
+
+ VALIDATE_SW_IF_INDEX (mp);
+
+ rv = snat_add_interface_address (sm, sw_if_index, is_del,
+ mp->flags & NAT_API_IS_TWICE_NAT);
+
+ BAD_SW_IF_INDEX_LABEL;
+
+send_reply:
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_INTERFACE_ADDR_REPLY);
+}
+
+static void
+send_nat44_interface_addr_details (u32 sw_if_index,
+ vl_api_registration_t * reg, u32 context,
+ u8 twice_nat)
+{
+ vl_api_nat44_interface_addr_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_INTERFACE_ADDR_DETAILS + sm->msg_id_base);
+ rmp->sw_if_index = ntohl (sw_if_index);
+
+ if (twice_nat)
+ rmp->flags = (vl_api_nat_config_flags_t) NAT_API_IS_TWICE_NAT;
+ rmp->context = context;
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_nat44_interface_addr_dump_t_handler (vl_api_nat44_interface_addr_dump_t
+ * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ u32 *i;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vec_foreach (i, sm->auto_add_sw_if_indices)
+ {
+ send_nat44_interface_addr_details (*i, reg, mp->context, 0);
+ }
+ vec_foreach (i, sm->auto_add_sw_if_indices_twice_nat)
+ {
+ send_nat44_interface_addr_details (*i, reg, mp->context, 1);
+ }
+}
+
+/* user (internal host) key */
+typedef struct
+{
+ union
+ {
+ struct
+ {
+ ip4_address_t addr;
+ u32 fib_index;
+ };
+ u64 as_u64;
+ };
+} snat_user_key_t;
+
+typedef struct
+{
+ ip4_address_t addr;
+ u32 fib_index;
+ u32 nsessions;
+ u32 nstaticsessions;
+} snat_user_t;
+
+typedef struct
+{
+ u32 user_buckets;
+ snat_user_t *users;
+ clib_bihash_8_8_t user_hash;
+} user_create_helper_t;
+
+static void
+send_nat44_user_details (snat_user_t * u, vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat44_user_details_t *rmp;
+ snat_main_t *sm = &snat_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_USER_DETAILS + sm->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
+nat_ed_user_create_helper (user_create_helper_t *uch, snat_session_t *s)
+{
+ snat_user_key_t k;
+ k.addr = s->in2out.addr;
+ k.fib_index = s->in2out.fib_index;
+ clib_bihash_kv_8_8_t key, value;
+ key.key = k.as_u64;
+ snat_user_t *u;
+
+ if (clib_bihash_search_8_8 (&uch->user_hash, &key, &value))
+ {
+ pool_get (uch->users, u);
+ u->addr = k.addr;
+ u->fib_index = k.fib_index;
+ u->nsessions = 0;
+ u->nstaticsessions = 0;
+ key.value = u - uch->users;
+ clib_bihash_add_del_8_8 (&uch->user_hash, &key, 1);
+ }
+ else
+ {
+ u = pool_elt_at_index (uch->users, value.value);
+ }
+ if (snat_is_session_static (s))
+ {
+ ++u->nstaticsessions;
+ }
+ else
+ {
+ ++u->nsessions;
+ }
+}
+
+u8 *
+format_user_kvp (u8 *s, va_list *args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+ snat_user_key_t k;
+ k.as_u64 = v->key;
+ s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr,
+ k.fib_index, v->value);
+ return s;
+}
+
+static void
+nat_ed_users_create (snat_main_per_thread_data_t *tsm,
+ user_create_helper_t *uch)
+{
+ snat_session_t *s;
+ clib_bihash_init_8_8 (&uch->user_hash, "users", uch->user_buckets, 0);
+ clib_bihash_set_kvp_format_fn_8_8 (&uch->user_hash, format_user_kvp);
+ pool_foreach (s, tsm->sessions)
+ {
+ nat_ed_user_create_helper (uch, s);
+ }
+}
+
+static void
+nat_ed_users_destroy (user_create_helper_t *uch)
+{
+ pool_free (uch->users);
+ clib_bihash_free_8_8 (&uch->user_hash);
+}
+
+static void
+vl_api_nat44_user_dump_t_handler (vl_api_nat44_user_dump_t * mp)
+{
+ user_create_helper_t uch;
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+ snat_user_t *u;
+
+ clib_memset (&uch, 0, sizeof (uch));
+
+ uch.user_buckets = nat_calc_bihash_buckets (1024);
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ nat_ed_users_create (tsm, &uch);
+ pool_foreach (u, uch.users)
+ {
+ send_nat44_user_details (u, reg, mp->context);
+ }
+ nat_ed_users_destroy (&uch);
+ }
+}
+
+static void
+send_nat44_user_session_details (snat_session_t * s,
+ vl_api_registration_t * reg, u32 context)
+{
+ vl_api_nat44_user_session_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_USER_SESSION_DETAILS + sm->msg_id_base);
+ clib_memcpy (rmp->outside_ip_address, (&s->out2in.addr), 4);
+ clib_memcpy (rmp->inside_ip_address, (&s->in2out.addr), 4);
+
+ if (snat_is_session_static (s))
+ rmp->flags |= NAT_API_IS_STATIC;
+
+ if (is_twice_nat_session (s))
+ rmp->flags |= NAT_API_IS_TWICE_NAT;
+
+ if (is_ed_session (s) || is_fwd_bypass_session (s))
+ rmp->flags |= NAT_API_IS_EXT_HOST_VALID;
+
+ 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 (snat_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));
+ }
+ if (is_ed_session (s) || is_fwd_bypass_session (s))
+ {
+ clib_memcpy (rmp->ext_host_address, &s->ext_host_addr, 4);
+ rmp->ext_host_port = s->ext_host_port;
+ if (is_twice_nat_session (s))
+ {
+ clib_memcpy (rmp->ext_host_nat_address, &s->ext_host_nat_addr, 4);
+ rmp->ext_host_nat_port = s->ext_host_nat_port;
+ }
+ }
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_nat44_user_session_dump_t_handler (vl_api_nat44_user_session_dump_t *
+ mp)
+{
+ snat_main_per_thread_data_t *tsm;
+ snat_main_t *sm = &snat_main;
+ vl_api_registration_t *reg;
+ snat_user_key_t ukey;
+ snat_session_t *s;
+ 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));
+ if (sm->num_workers > 1)
+ tsm =
+ vec_elt_at_index (sm->per_thread_data,
+ sm->worker_in2out_cb (&ip, ukey.fib_index, 0));
+ else
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+
+ pool_foreach (s, tsm->sessions) {
+ if (s->in2out.addr.as_u32 == ukey.addr.as_u32)
+ {
+ send_nat44_user_session_details (s, reg, mp->context);
+ }
+ }
+}
+
+static nat44_lb_addr_port_t *
+unformat_nat44_lb_addr_port (vl_api_nat44_lb_addr_port_t * addr_port_pairs,
+ u32 addr_port_pair_num)
+{
+ u8 i;
+ nat44_lb_addr_port_t *lb_addr_port_pairs = 0, lb_addr_port;
+ vl_api_nat44_lb_addr_port_t *ap;
+
+ for (i = 0; i < addr_port_pair_num; i++)
+ {
+ ap = &addr_port_pairs[i];
+ clib_memset (&lb_addr_port, 0, sizeof (lb_addr_port));
+ clib_memcpy (&lb_addr_port.addr, ap->addr, 4);
+ lb_addr_port.port = ap->port;
+ lb_addr_port.probability = ap->probability;
+ lb_addr_port.vrf_id = clib_net_to_host_u32 (ap->vrf_id);
+ vec_add1 (lb_addr_port_pairs, lb_addr_port);
+ }
+
+ return lb_addr_port_pairs;
+}
+
+static void
+ vl_api_nat44_add_del_lb_static_mapping_t_handler
+ (vl_api_nat44_add_del_lb_static_mapping_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_add_del_lb_static_mapping_reply_t *rmp;
+ twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
+ int rv = 0;
+ nat44_lb_addr_port_t *locals = 0;
+ ip4_address_t e_addr;
+ nat_protocol_t proto;
+ u8 *tag = 0;
+
+ locals =
+ unformat_nat44_lb_addr_port (mp->locals,
+ clib_net_to_host_u32 (mp->local_num));
+ clib_memcpy (&e_addr, mp->external_addr, 4);
+ proto = ip_proto_to_nat_proto (mp->protocol);
+
+ if (mp->flags & NAT_API_IS_TWICE_NAT)
+ twice_nat = TWICE_NAT;
+ else if (mp->flags & NAT_API_IS_SELF_TWICE_NAT)
+ twice_nat = TWICE_NAT_SELF;
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
+ vec_terminate_c_string (tag);
+
+ rv =
+ nat44_add_del_lb_static_mapping (e_addr,
+ mp->external_port,
+ proto, locals, mp->is_add,
+ twice_nat,
+ mp->flags & NAT_API_IS_OUT2IN_ONLY, tag,
+ clib_net_to_host_u32 (mp->affinity));
+
+ vec_free (locals);
+ vec_free (tag);
+ REPLY_MACRO (VL_API_NAT44_ADD_DEL_LB_STATIC_MAPPING_REPLY);
+}
+
+static void
+ vl_api_nat44_lb_static_mapping_add_del_local_t_handler
+ (vl_api_nat44_lb_static_mapping_add_del_local_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_lb_static_mapping_add_del_local_reply_t *rmp;
+ int rv = 0;
+ ip4_address_t e_addr, l_addr;
+ nat_protocol_t proto;
+
+ clib_memcpy (&e_addr, mp->external_addr, 4);
+ clib_memcpy (&l_addr, mp->local.addr, 4);
+ proto = ip_proto_to_nat_proto (mp->protocol);
+
+ rv =
+ nat44_lb_static_mapping_add_del_local (e_addr,
+ mp->external_port,
+ l_addr,
+ mp->local.port,
+ proto,
+ clib_net_to_host_u32 (mp->
+ local.vrf_id),
+ mp->local.probability, mp->is_add);
+
+ REPLY_MACRO (VL_API_NAT44_LB_STATIC_MAPPING_ADD_DEL_LOCAL_REPLY);
+}
+
+static void
+send_nat44_lb_static_mapping_details (snat_static_mapping_t * m,
+ vl_api_registration_t * reg,
+ u32 context)
+{
+ vl_api_nat44_lb_static_mapping_details_t *rmp;
+ snat_main_t *sm = &snat_main;
+ nat44_lb_addr_port_t *ap;
+ vl_api_nat44_lb_addr_port_t *locals;
+ u32 local_num = 0;
+
+ rmp =
+ vl_msg_api_alloc (sizeof (*rmp) +
+ (pool_elts (m->locals) *
+ sizeof (nat44_lb_addr_port_t)));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_LB_STATIC_MAPPING_DETAILS + sm->msg_id_base);
+
+ clib_memcpy (rmp->external_addr, &(m->external_addr), 4);
+ rmp->external_port = m->external_port;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
+ rmp->context = context;
+
+ if (m->twice_nat == TWICE_NAT)
+ rmp->flags |= NAT_API_IS_TWICE_NAT;
+ else if (m->twice_nat == TWICE_NAT_SELF)
+ rmp->flags |= NAT_API_IS_SELF_TWICE_NAT;
+ if (is_out2in_only_static_mapping (m))
+ rmp->flags |= NAT_API_IS_OUT2IN_ONLY;
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
+
+ locals = (vl_api_nat44_lb_addr_port_t *) rmp->locals;
+ pool_foreach (ap, m->locals)
+ {
+ clib_memcpy (locals->addr, &(ap->addr), 4);
+ locals->port = ap->port;
+ locals->probability = ap->probability;
+ locals->vrf_id = ntohl (ap->vrf_id);
+ locals++;
+ local_num++;
+ }
+ rmp->local_num = ntohl (local_num);
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+ vl_api_nat44_lb_static_mapping_dump_t_handler
+ (vl_api_nat44_lb_static_mapping_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ snat_static_mapping_t *m;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ pool_foreach (m, sm->static_mappings)
+ {
+ if (is_lb_static_mapping(m))
+ send_nat44_lb_static_mapping_details (m, reg, mp->context);
+ }
+}
+
+static void
+vl_api_nat44_del_session_t_handler (vl_api_nat44_del_session_t * mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_del_session_reply_t *rmp;
+ ip4_address_t addr, eh_addr;
+ u16 port, eh_port;
+ u32 vrf_id;
+ int rv = 0;
+ u8 is_in;
+
+ memcpy (&addr.as_u8, mp->address, 4);
+ port = mp->port;
+ vrf_id = clib_net_to_host_u32 (mp->vrf_id);
+ memcpy (&eh_addr.as_u8, mp->ext_host_address, 4);
+ eh_port = mp->ext_host_port;
+
+ is_in = mp->flags & NAT_API_IS_INSIDE;
+
+ rv = nat44_del_ed_session (sm, &addr, port, &eh_addr, eh_port, mp->protocol,
+ vrf_id, is_in);
+
+ REPLY_MACRO (VL_API_NAT44_DEL_SESSION_REPLY);
+}
+
+static void
+ vl_api_nat44_forwarding_enable_disable_t_handler
+ (vl_api_nat44_forwarding_enable_disable_t * mp)
+{
+ vl_api_nat44_forwarding_enable_disable_reply_t *rmp;
+ snat_main_t *sm = &snat_main;
+ int rv = 0;
+ nat44_ed_forwarding_enable_disable (mp->enable);
+ REPLY_MACRO (VL_API_NAT44_FORWARDING_ENABLE_DISABLE_REPLY);
+}
+
+static void
+ vl_api_nat44_forwarding_is_enabled_t_handler
+ (vl_api_nat44_forwarding_is_enabled_t * mp)
+{
+ vl_api_registration_t *reg;
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_forwarding_is_enabled_reply_t *rmp;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id =
+ ntohs (VL_API_NAT44_FORWARDING_IS_ENABLED_REPLY + sm->msg_id_base);
+ rmp->context = mp->context;
+
+ rmp->enabled = sm->forwarding_enabled;
+
+ vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_nat44_ed_set_fq_options_t_handler (vl_api_nat44_ed_set_fq_options_t *mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_ed_set_fq_options_reply_t *rmp;
+ int rv = 0;
+ u32 frame_queue_nelts = ntohl (mp->frame_queue_nelts);
+ rv = nat44_ed_set_frame_queue_nelts (frame_queue_nelts);
+ REPLY_MACRO (VL_API_NAT44_ED_SET_FQ_OPTIONS_REPLY);
+}
+
+static void
+vl_api_nat44_ed_show_fq_options_t_handler (
+ vl_api_nat44_ed_show_fq_options_t *mp)
+{
+ snat_main_t *sm = &snat_main;
+ vl_api_nat44_ed_show_fq_options_reply_t *rmp;
+ int rv = 0;
+ /* clang-format off */
+ REPLY_MACRO2_ZERO (VL_API_NAT44_ED_SHOW_FQ_OPTIONS_REPLY,
+ ({
+ rmp->frame_queue_nelts = htonl (sm->frame_queue_nelts);
+ }));
+ /* clang-format on */
+}
+
+/* API definitions */
+#include <vnet/format_fns.h>
+#include <nat/nat44-ed/nat44_ed.api.c>
+
+/* Set up the API message handling tables */
+clib_error_t *
+nat44_api_hookup (vlib_main_t * vm)
+{
+ snat_main_t *sm = &snat_main;
+ sm->msg_id_base = setup_message_id_table ();
+ return 0;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */