diff options
Diffstat (limited to 'src/plugins/gbp/gbp_ext_itf.c')
| -rw-r--r-- | src/plugins/gbp/gbp_ext_itf.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/plugins/gbp/gbp_ext_itf.c b/src/plugins/gbp/gbp_ext_itf.c new file mode 100644 index 00000000000..57ff625d64a --- /dev/null +++ b/src/plugins/gbp/gbp_ext_itf.c @@ -0,0 +1,203 @@ +/* + * 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_ext_itf.h> +#include <plugins/gbp/gbp_bridge_domain.h> +#include <plugins/gbp/gbp_route_domain.h> +#include <plugins/gbp/gbp_itf.h> + +/** + * Pool of GBP ext_itfs + */ +gbp_ext_itf_t *gbp_ext_itf_pool; + +/** + * external interface configs keyed by sw_if_index + */ +index_t *gbp_ext_itf_db; + +#define GBP_EXT_ITF_ID 0x00000080 + +/** + * logger + */ +vlib_log_class_t gx_logger; + +#define GBP_EXT_ITF_DBG(...) \ + vlib_log_debug (gx_logger, __VA_ARGS__); + +u8 * +format_gbp_ext_itf (u8 * s, va_list * args) +{ + gbp_ext_itf_t *gx = va_arg (*args, gbp_ext_itf_t *); + + return (format (s, "%U in %U", + format_gbp_itf, gx->gx_itf, + format_gbp_bridge_domain, gx->gx_bd)); +} + +int +gbp_ext_itf_add (u32 sw_if_index, u32 bd_id, u32 rd_id) +{ + gbp_ext_itf_t *gx; + index_t gxi; + + vec_validate_init_empty (gbp_ext_itf_db, sw_if_index, INDEX_INVALID); + + gxi = gbp_ext_itf_db[sw_if_index]; + + if (INDEX_INVALID == gxi) + { + gbp_bridge_domain_t *gb; + gbp_route_domain_t *gr; + fib_protocol_t fproto; + index_t gbi, gri; + + gbi = gbp_bridge_domain_find_and_lock (bd_id); + + if (INDEX_INVALID == gbi) + return (VNET_API_ERROR_NO_SUCH_ENTRY); + + gri = gbp_route_domain_find_and_lock (rd_id); + + if (INDEX_INVALID == gri) + { + gbp_bridge_domain_unlock (gbi); + return (VNET_API_ERROR_NO_SUCH_ENTRY); + } + + pool_get_zero (gbp_ext_itf_pool, gx); + gxi = gx - gbp_ext_itf_pool; + + gb = gbp_bridge_domain_get (gbi); + gr = gbp_route_domain_get (gri); + + gx->gx_bd = gbi; + gx->gx_rd = gri; + + FOR_EACH_FIB_IP_PROTOCOL (fproto) + { + gx->gx_fib_index[fproto] = + gr->grd_fib_index[fib_proto_to_dpo (fproto)]; + } + + gx->gx_itf = gbp_itf_add_and_lock (sw_if_index, gb->gb_bd_index); + gbp_itf_set_l2_input_feature (gx->gx_itf, (gxi | GBP_EXT_ITF_ID), + L2INPUT_FEAT_GBP_LPM_CLASSIFY); + + gbp_ext_itf_db[sw_if_index] = gxi; + + GBP_EXT_ITF_DBG ("add: %U", format_gbp_ext_itf, gx); + + return (0); + } + + return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS); +} + +int +gbp_ext_itf_delete (u32 sw_if_index) +{ + gbp_ext_itf_t *gx; + index_t gxi; + + gxi = gbp_ext_itf_db[sw_if_index]; + + if (INDEX_INVALID != gxi) + { + gx = pool_elt_at_index (gbp_ext_itf_pool, gxi); + + GBP_EXT_ITF_DBG ("del: %U", format_gbp_ext_itf, gx); + + gbp_itf_set_l2_input_feature (gx->gx_itf, + (gxi | GBP_EXT_ITF_ID), + L2INPUT_FEAT_NONE); + gbp_itf_unlock (gx->gx_itf); + + gbp_route_domain_unlock (gx->gx_rd); + gbp_bridge_domain_unlock (gx->gx_bd); + + gbp_ext_itf_db[sw_if_index] = INDEX_INVALID; + pool_put (gbp_ext_itf_pool, gx); + + return (0); + } + return (VNET_API_ERROR_NO_SUCH_ENTRY); +} + +void +gbp_ext_itf_walk (gbp_ext_itf_cb_t cb, void *ctx) +{ + gbp_ext_itf_t *ge; + + /* *INDENT-OFF* */ + pool_foreach(ge, gbp_ext_itf_pool, + { + if (!cb(ge, ctx)) + break; + }); + /* *INDENT-ON* */ +} + +static walk_rc_t +gbp_ext_itf_show_one (gbp_ext_itf_t * gx, void *ctx) +{ + vlib_cli_output (ctx, " %U", format_gbp_ext_itf, gx); + + return (WALK_CONTINUE); +} + +static clib_error_t * +gbp_ext_itf_show (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + vlib_cli_output (vm, "External-Interfaces:"); + gbp_ext_itf_walk (gbp_ext_itf_show_one, vm); + + return (NULL); +} + +/*? + * Show Group Based Policy external interface and derived information + * + * @cliexpar + * @cliexstart{show gbp ext-itf} + * @cliexend + ?*/ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (gbp_ext_itf_show_node, static) = { + .path = "show gbp ext-itf", + .short_help = "show gbp ext-itf\n", + .function = gbp_ext_itf_show, +}; +/* *INDENT-ON* */ + +static clib_error_t * +gbp_ext_itf_init (vlib_main_t * vm) +{ + gx_logger = vlib_log_register_class ("gbp", "ext-itf"); + + return (NULL); +} + +VLIB_INIT_FUNCTION (gbp_ext_itf_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |