/* * 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 <vnet/ip/ip.h> #include <vnet/feature/feature.h> #include <vnet/qos/qos_egress_map.h> #include <vnet/qos/qos_mark.h> /** * per-interface vector of which MAP is used by which interface * for each output source */ index_t *qos_mark_configs[QOS_N_SOURCES]; void qos_mark_ip_enable_disable (u32 sw_if_index, u8 enable) { vnet_feature_enable_disable ("ip6-output", "ip6-qos-mark", sw_if_index, enable, NULL, 0); vnet_feature_enable_disable ("ip4-output", "ip4-qos-mark", sw_if_index, enable, NULL, 0); } void qos_mark_vlan_enable_disable (u32 sw_if_index, u8 enable) { /* * one cannot run a feature on a sub-interface, so we need * to enable a feature on all the L3 output paths */ vnet_feature_enable_disable ("ip6-output", "vlan-ip6-qos-mark", sw_if_index, enable, NULL, 0); vnet_feature_enable_disable ("ip4-output", "vlan-ip4-qos-mark", sw_if_index, enable, NULL, 0); vnet_feature_enable_disable ("mpls-output", "vlan-mpls-qos-mark", sw_if_index, enable, NULL, 0); } void qos_mark_mpls_enable_disable (u32 sw_if_index, u8 enable) { vnet_feature_enable_disable ("mpls-output", "mpls-qos-mark", sw_if_index, enable, NULL, 0); } static void qos_egress_map_feature_config (u32 sw_if_index, qos_source_t qs, u8 enable) { switch (qs) { case QOS_SOURCE_EXT: ASSERT (0); break; case QOS_SOURCE_VLAN: qos_mark_vlan_enable_disable (sw_if_index, enable); break; case QOS_SOURCE_MPLS: qos_mark_mpls_enable_disable (sw_if_index, enable); break; case QOS_SOURCE_IP: qos_mark_ip_enable_disable (sw_if_index, enable); break; } } int qos_mark_enable (u32 sw_if_index, qos_source_t output_source, qos_egress_map_id_t mid) { index_t qemi; vec_validate_init_empty (qos_mark_configs[output_source], sw_if_index, INDEX_INVALID); qemi = qos_egress_map_find (mid); if (INDEX_INVALID == qemi) return VNET_API_ERROR_NO_SUCH_TABLE; if (INDEX_INVALID == qos_mark_configs[output_source][sw_if_index]) { qos_egress_map_feature_config (sw_if_index, output_source, 1); } qos_mark_configs[output_source][sw_if_index] = qemi; return (0); } int qos_mark_disable (u32 sw_if_index, qos_source_t output_source) { if (vec_len (qos_mark_configs[output_source]) <= sw_if_index) return VNET_API_ERROR_NO_MATCHING_INTERFACE; if (INDEX_INVALID == qos_mark_configs[output_source][sw_if_index]) return VNET_API_ERROR_VALUE_EXIST; if (INDEX_INVALID != qos_mark_configs[output_source][sw_if_index]) { qos_egress_map_feature_config (sw_if_index, output_source, 0); } qos_mark_configs[output_source][sw_if_index] = INDEX_INVALID; return (0); } void qos_mark_walk (qos_mark_walk_cb_t fn, void *c) { qos_source_t qs; FOR_EACH_QOS_SOURCE (qs) { u32 sw_if_index; vec_foreach_index (sw_if_index, qos_mark_configs[qs]) { if (INDEX_INVALID != qos_mark_configs[qs][sw_if_index]) fn (sw_if_index, qos_egress_map_get_id (qos_mark_configs[qs][sw_if_index]), qs, c); } } } static clib_error_t * qos_mark_cli (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { qos_egress_map_id_t map_id; u32 sw_if_index, qs; vnet_main_t *vnm; int rv, enable; vnm = vnet_get_main (); map_id = ~0; qs = 0xff; enable = 1; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "id %d", &map_id)) ; else if (unformat (input, "disable")) enable = 0; else if (unformat (input, "%U", unformat_qos_source, &qs)) ; else if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else break; } if (~0 == sw_if_index) return clib_error_return (0, "interface must be specified"); if (0xff == qs) return clib_error_return (0, "output location must be specified"); if (enable) rv = qos_mark_enable (sw_if_index, qs, map_id); else rv = qos_mark_disable (sw_if_index, qs); if (0 == rv) return (NULL); return clib_error_return (0, "Failed to map interface"); } /*? * Apply a QoS egress mapping table to an interface for QoS marking packets * at the given output protocol. * * @cliexpar * @cliexcmd{qos egress interface GigEthernet0/9/0 id 0 output ip} ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (qos_egress_map_interface_command, static) = { .path = "qos mark", .short_help = "qos mark <SOURCE> <INTERFACE> id <MAP>", .function = qos_mark_cli, .is_mp_safe = 1, }; /* *INDENT-ON* */ static void qos_mark_show_one_interface (vlib_main_t * vm, u32 sw_if_index) { index_t qemis[QOS_N_SOURCES]; qos_source_t qs; bool set; set = false; clib_memset_u32 (qemis, INDEX_INVALID, QOS_N_SOURCES); FOR_EACH_QOS_SOURCE (qs) { if (vec_len (qos_mark_configs[qs]) <= sw_if_index) continue; if (INDEX_INVALID != (qemis[qs] = qos_mark_configs[qs][sw_if_index])) set = true; } if (set) { vlib_cli_output (vm, " %U:", format_vnet_sw_if_index_name, vnet_get_main (), sw_if_index); FOR_EACH_QOS_SOURCE (qs) { if (qemis[qs] != INDEX_INVALID) vlib_cli_output (vm, " %U: map:%d", format_qos_source, qs, qemis[qs]); } } } static clib_error_t * qos_mark_show (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { vnet_main_t *vnm = vnet_get_main (); qos_source_t qs; u32 sw_if_index; sw_if_index = ~0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; } if (~0 == sw_if_index) { u32 ii, n_ints = 0; FOR_EACH_QOS_SOURCE (qs) { n_ints = clib_max (n_ints, vec_len (qos_mark_configs[qs])); } for (ii = 0; ii < n_ints; ii++) { qos_mark_show_one_interface (vm, ii); } } else qos_mark_show_one_interface (vm, sw_if_index); return (NULL); } /*? * Show Egress Qos Maps * * @cliexpar * @cliexcmd{show qos egress map} ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (qos_mark_show_command, static) = { .path = "show qos mark", .short_help = "show qos mark [interface]", .function = qos_mark_show, .is_mp_safe = 1, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: * */