/* * 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_itf.h> /** * Attributes and configurations attached to interfaces by GBP */ typedef struct gbp_itf_t_ { /** * Number of references to this interface */ u32 gi_locks; u32 gi_sw_if_index; u32 gi_bd_index; /** * L2/L3 Features configured by each user */ u32 *gi_l2_input_fbs; u32 gi_l2_input_fb; u32 *gi_l2_output_fbs; u32 gi_l2_output_fb; } gbp_itf_t; static gbp_itf_t *gbp_itfs; static gbp_itf_t * gbp_itf_get (index_t gii) { vec_validate (gbp_itfs, gii); return (&gbp_itfs[gii]); } static index_t gbp_itf_get_itf (u32 sw_if_index) { return (sw_if_index); } index_t gbp_itf_add_and_lock (u32 sw_if_index, u32 bd_index) { gbp_itf_t *gi; gi = gbp_itf_get (gbp_itf_get_itf (sw_if_index)); if (0 == gi->gi_locks) { gi->gi_sw_if_index = sw_if_index; gi->gi_bd_index = bd_index; if (~0 != gi->gi_bd_index) set_int_l2_mode (vlib_get_main (), vnet_get_main (), MODE_L2_BRIDGE, sw_if_index, bd_index, L2_BD_PORT_TYPE_NORMAL, 0, 0); } gi->gi_locks++; return (sw_if_index); } void gbp_itf_unlock (index_t gii) { gbp_itf_t *gi; gi = gbp_itf_get (gii); ASSERT (gi->gi_locks > 0); gi->gi_locks--; if (0 == gi->gi_locks) { if (~0 != gi->gi_bd_index) set_int_l2_mode (vlib_get_main (), vnet_get_main (), MODE_L3, gi->gi_sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL, 0, 0); vec_free (gi->gi_l2_input_fbs); vec_free (gi->gi_l2_output_fbs); memset (gi, 0, sizeof (*gi)); } } void gbp_itf_set_l2_input_feature (index_t gii, index_t useri, l2input_feat_masks_t feats) { u32 diff_fb, new_fb, *fb, feat; gbp_itf_t *gi; gi = gbp_itf_get (gii); if (gi->gi_bd_index == ~0) return; vec_validate (gi->gi_l2_input_fbs, useri); gi->gi_l2_input_fbs[useri] = feats; new_fb = 0; vec_foreach (fb, gi->gi_l2_input_fbs) { new_fb |= *fb; } /* add new features */ diff_fb = (gi->gi_l2_input_fb ^ new_fb) & new_fb; /* *INDENT-OFF* */ foreach_set_bit (feat, diff_fb, ({ l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1); })); /* *INDENT-ON* */ /* remove unneeded features */ diff_fb = (gi->gi_l2_input_fb ^ new_fb) & gi->gi_l2_input_fb; /* *INDENT-OFF* */ foreach_set_bit (feat, diff_fb, ({ l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0); })); /* *INDENT-ON* */ gi->gi_l2_input_fb = new_fb; } void gbp_itf_set_l2_output_feature (index_t gii, index_t useri, l2output_feat_masks_t feats) { u32 diff_fb, new_fb, *fb, feat; gbp_itf_t *gi; gi = gbp_itf_get (gii); if (gi->gi_bd_index == ~0) return; vec_validate (gi->gi_l2_output_fbs, useri); gi->gi_l2_output_fbs[useri] = feats; new_fb = 0; vec_foreach (fb, gi->gi_l2_output_fbs) { new_fb |= *fb; } /* add new features */ diff_fb = (gi->gi_l2_output_fb ^ new_fb) & new_fb; /* *INDENT-OFF* */ foreach_set_bit (feat, diff_fb, ({ l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1); })); /* *INDENT-ON* */ /* remove unneeded features */ diff_fb = (gi->gi_l2_output_fb ^ new_fb) & gi->gi_l2_output_fb; /* *INDENT-OFF* */ foreach_set_bit (feat, diff_fb, ({ l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0); })); /* *INDENT-ON* */ gi->gi_l2_output_fb = new_fb; } u8 * format_gbp_itf (u8 * s, va_list * args) { index_t gii = va_arg (*args, index_t); gbp_itf_t *gi; gi = gbp_itf_get (gii); s = format (s, "%U locks:%d bd-index:%d input-feats:%U output-feats:%U", format_vnet_sw_if_index_name, vnet_get_main (), gi->gi_sw_if_index, gi->gi_locks, gi->gi_bd_index, format_l2_input_features, gi->gi_l2_input_fb, 0, format_l2_output_features, gi->gi_l2_output_fb, 0); return (s); } static clib_error_t * gbp_itf_show (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { u32 gii; vlib_cli_output (vm, "Interfaces:"); vec_foreach_index (gii, gbp_itfs) { vlib_cli_output (vm, " [%d] %U", gii, format_gbp_itf, gii); } return (NULL); } /*? * Show Group Based Interfaces * * @cliexpar * @cliexstart{show gbp contract} * @cliexend ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (gbp_contract_show_node, static) = { .path = "show gbp interface", .short_help = "show gbp interface\n", .function = gbp_itf_show, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */