+++ /dev/null
-/*
- * Copyright (c) 2018 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <plugins/gbp/gbp_recirc.h>
-#include <plugins/gbp/gbp_endpoint_group.h>
-#include <plugins/gbp/gbp_endpoint.h>
-#include <plugins/gbp/gbp_itf.h>
-
-#include <vnet/dpo/dvr_dpo.h>
-#include <vnet/fib/fib_table.h>
-
-#include <vlib/unix/plugin.h>
-
-/**
- * Pool of GBP recircs
- */
-gbp_recirc_t *gbp_recirc_pool;
-
-/**
- * Recirc configs keyed by sw_if_index
- */
-index_t *gbp_recirc_db;
-
-/**
- * logger
- */
-vlib_log_class_t gr_logger;
-
-/**
- * L2 Emulation enable/disable symbols
- */
-static void (*l2e_enable) (u32 sw_if_index);
-static void (*l2e_disable) (u32 sw_if_index);
-
-#define GBP_RECIRC_DBG(...) \
- vlib_log_debug (gr_logger, __VA_ARGS__);
-
-u8 *
-format_gbp_recirc (u8 * s, va_list * args)
-{
- gbp_recirc_t *gr = va_arg (*args, gbp_recirc_t *);
- vnet_main_t *vnm = vnet_get_main ();
-
- return format (s, " %U, sclass:%d, ext:%d",
- format_vnet_sw_if_index_name, vnm,
- gr->gr_sw_if_index, gr->gr_sclass, gr->gr_is_ext);
-}
-
-int
-gbp_recirc_add (u32 sw_if_index, sclass_t sclass, u8 is_ext)
-{
- gbp_recirc_t *gr;
- index_t gri;
-
- vec_validate_init_empty (gbp_recirc_db, sw_if_index, INDEX_INVALID);
-
- gri = gbp_recirc_db[sw_if_index];
-
- if (INDEX_INVALID == gri)
- {
- gbp_endpoint_group_t *gg;
- fib_protocol_t fproto;
- index_t ggi;
-
- ggi = gbp_endpoint_group_find (sclass);
-
- if (INDEX_INVALID == ggi)
- return (VNET_API_ERROR_NO_SUCH_ENTRY);
-
- gbp_endpoint_group_lock (ggi);
- pool_get_zero (gbp_recirc_pool, gr);
- gri = gr - gbp_recirc_pool;
-
- gr->gr_sclass = sclass;
- gr->gr_is_ext = is_ext;
- gr->gr_sw_if_index = sw_if_index;
-
- /*
- * IP enable the recirc interface
- */
- ip4_sw_interface_enable_disable (gr->gr_sw_if_index, 1);
- ip6_sw_interface_enable_disable (gr->gr_sw_if_index, 1);
-
- /*
- * cache the FIB indicies of the EPG
- */
- gr->gr_epgi = ggi;
-
- gg = gbp_endpoint_group_get (gr->gr_epgi);
- FOR_EACH_FIB_IP_PROTOCOL (fproto)
- {
- gr->gr_fib_index[fib_proto_to_dpo (fproto)] =
- gbp_endpoint_group_get_fib_index (gg, fproto);
- }
-
- /*
- * bind to the bridge-domain of the EPG
- */
- gr->gr_itf = gbp_itf_l2_add_and_lock (gr->gr_sw_if_index, gg->gg_gbd);
-
- /*
- * set the interface into L2 emulation mode
- */
- l2e_enable (gr->gr_sw_if_index);
-
- /*
- * Packets on the recirculation interface are subject to src-EPG
- * classification. Recirc interfaces are L2-emulation mode.
- * for internal EPGs this is via an LPM on all external subnets.
- * for external EPGs this is via a port mapping.
- */
- if (gr->gr_is_ext)
- {
- mac_address_t mac;
- /*
- * recirc is for post-NAT translation packets going into
- * the external EPG, these are classified to the NAT EPG
- * based on its port
- */
- mac_address_from_bytes (&mac,
- vnet_sw_interface_get_hw_address
- (vnet_get_main (), gr->gr_sw_if_index));
- gbp_endpoint_update_and_lock (GBP_ENDPOINT_SRC_CP,
- gr->gr_sw_if_index,
- NULL, &mac, INDEX_INVALID,
- INDEX_INVALID, gr->gr_sclass,
- GBP_ENDPOINT_FLAG_NONE,
- NULL, NULL, &gr->gr_ep);
- vnet_feature_enable_disable ("ip4-unicast",
- "ip4-gbp-src-classify",
- gr->gr_sw_if_index, 1, 0, 0);
- vnet_feature_enable_disable ("ip6-unicast",
- "ip6-gbp-src-classify",
- gr->gr_sw_if_index, 1, 0, 0);
- }
- else
- {
- /*
- * recirc is for pre-NAT translation packets coming from
- * the external EPG, these are classified based on a LPM
- * in the EPG's route-domain
- */
- vnet_feature_enable_disable ("ip4-unicast",
- "ip4-gbp-lpm-classify",
- gr->gr_sw_if_index, 1, 0, 0);
- vnet_feature_enable_disable ("ip6-unicast",
- "ip6-gbp-lpm-classify",
- gr->gr_sw_if_index, 1, 0, 0);
- }
-
- gbp_recirc_db[sw_if_index] = gri;
- }
- else
- {
- gr = gbp_recirc_get (gri);
- }
-
- GBP_RECIRC_DBG ("add: %U", format_gbp_recirc, gr);
- return (0);
-}
-
-int
-gbp_recirc_delete (u32 sw_if_index)
-{
- gbp_recirc_t *gr;
- index_t gri;
-
- if (vec_len (gbp_recirc_db) <= sw_if_index)
- return VNET_API_ERROR_INVALID_SW_IF_INDEX;
- gri = gbp_recirc_db[sw_if_index];
-
- if (INDEX_INVALID != gri)
- {
- gr = pool_elt_at_index (gbp_recirc_pool, gri);
-
- GBP_RECIRC_DBG ("del: %U", format_gbp_recirc, gr);
-
- if (gr->gr_is_ext)
- {
- gbp_endpoint_unlock (GBP_ENDPOINT_SRC_CP, gr->gr_ep);
- vnet_feature_enable_disable ("ip4-unicast",
- "ip4-gbp-src-classify",
- gr->gr_sw_if_index, 0, 0, 0);
- vnet_feature_enable_disable ("ip6-unicast",
- "ip6-gbp-src-classify",
- gr->gr_sw_if_index, 0, 0, 0);
- }
- else
- {
- vnet_feature_enable_disable ("ip4-unicast",
- "ip4-gbp-lpm-classify",
- gr->gr_sw_if_index, 0, 0, 0);
- vnet_feature_enable_disable ("ip6-unicast",
- "ip6-gbp-lpm-classify",
- gr->gr_sw_if_index, 0, 0, 0);
- }
-
- ip4_sw_interface_enable_disable (gr->gr_sw_if_index, 0);
- ip6_sw_interface_enable_disable (gr->gr_sw_if_index, 0);
- l2e_disable (gr->gr_sw_if_index);
-
- gbp_itf_unlock (&gr->gr_itf);
-
- gbp_endpoint_group_unlock (gr->gr_epgi);
- gbp_recirc_db[sw_if_index] = INDEX_INVALID;
- pool_put (gbp_recirc_pool, gr);
- return (0);
- }
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-}
-
-void
-gbp_recirc_walk (gbp_recirc_cb_t cb, void *ctx)
-{
- gbp_recirc_t *ge;
-
- /* *INDENT-OFF* */
- pool_foreach (ge, gbp_recirc_pool)
- {
- if (!cb(ge, ctx))
- break;
- }
- /* *INDENT-ON* */
-}
-
-static walk_rc_t
-gbp_recirc_show_one (gbp_recirc_t * gr, void *ctx)
-{
- vlib_cli_output (ctx, " %U", format_gbp_recirc, gr);
-
- return (WALK_CONTINUE);
-}
-
-static clib_error_t *
-gbp_recirc_show (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- vlib_cli_output (vm, "Recirculation-Interfaces:");
- gbp_recirc_walk (gbp_recirc_show_one, vm);
-
- return (NULL);
-}
-
-/*?
- * Show Group Based Policy Recircs and derived information
- *
- * @cliexpar
- * @cliexstart{show gbp recirc}
- * @cliexend
- ?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (gbp_recirc_show_node, static) = {
- .path = "show gbp recirc",
- .short_help = "show gbp recirc\n",
- .function = gbp_recirc_show,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-gbp_recirc_init (vlib_main_t * vm)
-{
- gr_logger = vlib_log_register_class ("gbp", "recirc");
-
- l2e_enable =
- vlib_get_plugin_symbol ("l2e_plugin.so", "l2_emulation_enable");
- l2e_disable =
- vlib_get_plugin_symbol ("l2e_plugin.so", "l2_emulation_disable");
-
- return (NULL);
-}
-
-VLIB_INIT_FUNCTION (gbp_recirc_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / blobdiff