/* *------------------------------------------------------------------ * l2_api.c - layer 2 forwarding api * * Copyright (c) 2016 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/vnet.h> #include <vlibmemory/api.h> #include <vnet/interface.h> #include <vnet/api_errno.h> #include <vnet/l2/l2_input.h> #include <vnet/l2/l2_fib.h> #include <vnet/l2/l2_vtr.h> #include <vnet/vnet_msg_enum.h> #define vl_typedefs /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_typedefs #define vl_endianfun /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_endianfun #define vl_api_bridge_domain_details_t_endian vl_noop_handler #define vl_api_bridge_domain_details_t_print vl_noop_handler /* instantiate all the print functions we know about */ #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) #define vl_printfun #include <vnet/vnet_all_api_h.h> #undef vl_printfun #include <vlibapi/api_helper_macros.h> #define foreach_vpe_api_msg \ _(L2_XCONNECT_DUMP, l2_xconnect_dump) \ _(L2_FIB_CLEAR_TABLE, l2_fib_clear_table) \ _(L2_FIB_TABLE_DUMP, l2_fib_table_dump) \ _(L2FIB_FLUSH_ALL, l2fib_flush_all) \ _(L2FIB_FLUSH_INT, l2fib_flush_int) \ _(L2FIB_FLUSH_BD, l2fib_flush_bd) \ _(L2FIB_ADD_DEL, l2fib_add_del) \ _(L2_FLAGS, l2_flags) \ _(BRIDGE_DOMAIN_ADD_DEL, bridge_domain_add_del) \ _(BRIDGE_DOMAIN_DUMP, bridge_domain_dump) \ _(BRIDGE_FLAGS, bridge_flags) \ _(L2_INTERFACE_VLAN_TAG_REWRITE, l2_interface_vlan_tag_rewrite) \ _(L2_INTERFACE_PBB_TAG_REWRITE, l2_interface_pbb_tag_rewrite) \ _(BRIDGE_DOMAIN_SET_MAC_AGE, bridge_domain_set_mac_age) static void send_l2_xconnect_details (unix_shared_memory_queue_t * q, u32 context, u32 rx_sw_if_index, u32 tx_sw_if_index) { vl_api_l2_xconnect_details_t *mp; mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_L2_XCONNECT_DETAILS); mp->context = context; mp->rx_sw_if_index = htonl (rx_sw_if_index); mp->tx_sw_if_index = htonl (tx_sw_if_index); vl_msg_api_send_shmem (q, (u8 *) & mp); } static void vl_api_l2_xconnect_dump_t_handler (vl_api_l2_xconnect_dump_t * mp) { unix_shared_memory_queue_t *q; vnet_main_t *vnm = vnet_get_main (); vnet_interface_main_t *im = &vnm->interface_main; l2input_main_t *l2im = &l2input_main; vnet_sw_interface_t *swif; l2_input_config_t *config; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; /* *INDENT-OFF* */ pool_foreach (swif, im->sw_interfaces, ({ config = vec_elt_at_index (l2im->configs, swif->sw_if_index); if (config->xconnect) send_l2_xconnect_details (q, mp->context, swif->sw_if_index, config->output_sw_if_index); })); /* *INDENT-ON* */ } static void vl_api_l2_fib_clear_table_t_handler (vl_api_l2_fib_clear_table_t * mp) { int rv = 0; vl_api_l2_fib_clear_table_reply_t *rmp; /* Clear all MACs including static MACs */ l2fib_clear_table (); REPLY_MACRO (VL_API_L2_FIB_CLEAR_TABLE_REPLY); } static void send_l2fib_table_entry (vpe_api_main_t * am, unix_shared_memory_queue_t * q, l2fib_entry_key_t * l2fe_key, l2fib_entry_result_t * l2fe_res, u32 context) { vl_api_l2_fib_table_details_t *mp; mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_L2_FIB_TABLE_DETAILS); mp->bd_id = ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id); mp->mac = l2fib_make_key (l2fe_key->fields.mac, 0); mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index); mp->static_mac = l2fe_res->fields.static_mac; mp->filter_mac = l2fe_res->fields.filter; mp->bvi_mac = l2fe_res->fields.bvi; mp->context = context; vl_msg_api_send_shmem (q, (u8 *) & mp); } static void vl_api_l2_fib_table_dump_t_handler (vl_api_l2_fib_table_dump_t * mp) { vpe_api_main_t *am = &vpe_api_main; bd_main_t *bdm = &bd_main; l2fib_entry_key_t *l2fe_key = NULL; l2fib_entry_result_t *l2fe_res = NULL; u32 ni, bd_id = ntohl (mp->bd_id); u32 bd_index; unix_shared_memory_queue_t *q; uword *p; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; /* see l2fib_table_dump: ~0 means "any" */ if (bd_id == ~0) bd_index = ~0; else { p = hash_get (bdm->bd_index_by_bd_id, bd_id); if (p == 0) return; bd_index = p[0]; } l2fib_table_dump (bd_index, &l2fe_key, &l2fe_res); vec_foreach_index (ni, l2fe_key) { send_l2fib_table_entry (am, q, vec_elt_at_index (l2fe_key, ni), vec_elt_at_index (l2fe_res, ni), mp->context); } vec_free (l2fe_key); vec_free (l2fe_res); } static void vl_api_l2fib_add_del_t_handler (vl_api_l2fib_add_del_t * mp) { bd_main_t *bdm = &bd_main; l2input_main_t *l2im = &l2input_main; vl_api_l2fib_add_del_reply_t *rmp; int rv = 0; u64 mac = 0; u32 sw_if_index = ntohl (mp->sw_if_index); u32 bd_id = ntohl (mp->bd_id); u32 bd_index; u32 static_mac; u32 filter_mac; u32 bvi_mac; uword *p; mac = mp->mac; p = hash_get (bdm->bd_index_by_bd_id, bd_id); if (!p) { rv = VNET_API_ERROR_NO_SUCH_ENTRY; goto bad_sw_if_index; } bd_index = p[0]; if (mp->is_add) { filter_mac = mp->filter_mac ? 1 : 0; if (filter_mac == 0) { VALIDATE_SW_IF_INDEX (mp); if (vec_len (l2im->configs) <= sw_if_index) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; goto bad_sw_if_index; } else { l2_input_config_t *config; config = vec_elt_at_index (l2im->configs, sw_if_index); if (config->bridge == 0) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; goto bad_sw_if_index; } } } static_mac = mp->static_mac ? 1 : 0; bvi_mac = mp->bvi_mac ? 1 : 0; l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, filter_mac, bvi_mac); } else { l2fib_del_entry (mac, bd_index); } BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2FIB_ADD_DEL_REPLY); } static void vl_api_l2fib_flush_int_t_handler (vl_api_l2fib_flush_int_t * mp) { int rv = 0; vlib_main_t *vm = vlib_get_main (); vl_api_l2fib_flush_int_reply_t *rmp; VALIDATE_SW_IF_INDEX (mp); u32 sw_if_index = ntohl (mp->sw_if_index); l2fib_flush_int_mac (vm, sw_if_index); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2FIB_FLUSH_INT_REPLY); } static void vl_api_l2fib_flush_all_t_handler (vl_api_l2fib_flush_all_t * mp) { int rv = 0; vl_api_l2fib_flush_all_reply_t *rmp; l2fib_flush_all_mac (vlib_get_main ()); REPLY_MACRO (VL_API_L2FIB_FLUSH_ALL_REPLY); } static void vl_api_l2fib_flush_bd_t_handler (vl_api_l2fib_flush_bd_t * mp) { int rv = 0; vlib_main_t *vm = vlib_get_main (); bd_main_t *bdm = &bd_main; vl_api_l2fib_flush_bd_reply_t *rmp; u32 bd_id = ntohl (mp->bd_id); uword *p = hash_get (bdm->bd_index_by_bd_id, bd_id); if (p == 0) { rv = VNET_API_ERROR_NO_SUCH_ENTRY; goto out; } l2fib_flush_bd_mac (vm, *p); out: REPLY_MACRO (VL_API_L2FIB_FLUSH_BD_REPLY); } static void vl_api_l2_flags_t_handler (vl_api_l2_flags_t * mp) { vl_api_l2_flags_reply_t *rmp; int rv = 0; u32 rbm = 0; VALIDATE_SW_IF_INDEX (mp); u32 sw_if_index = ntohl (mp->sw_if_index); u32 flags = ntohl (mp->feature_bitmap) & L2INPUT_VALID_MASK; rbm = l2input_intf_bitmap_enable (sw_if_index, flags, mp->is_set); BAD_SW_IF_INDEX_LABEL; /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_L2_FLAGS_REPLY, ({ rmp->resulting_feature_bitmap = ntohl(rbm); })); /* *INDENT-ON* */ } static void vl_api_bridge_domain_set_mac_age_t_handler (vl_api_bridge_domain_set_mac_age_t * mp) { vlib_main_t *vm = vlib_get_main (); bd_main_t *bdm = &bd_main; vl_api_bridge_domain_set_mac_age_reply_t *rmp; int rv = 0; u32 bd_id = ntohl (mp->bd_id); uword *p; if (bd_id == 0) { rv = VNET_API_ERROR_BD_NOT_MODIFIABLE; goto out; } p = hash_get (bdm->bd_index_by_bd_id, bd_id); if (p == 0) { rv = VNET_API_ERROR_NO_SUCH_ENTRY; goto out; } bd_set_mac_age (vm, *p, mp->mac_age); out: REPLY_MACRO (VL_API_BRIDGE_DOMAIN_SET_MAC_AGE_REPLY); } static void vl_api_bridge_domain_add_del_t_handler (vl_api_bridge_domain_add_del_t * mp) { l2_bridge_domain_add_del_args_t a = { .is_add = mp->is_add, .flood = mp->flood, .uu_flood = mp->uu_flood, .forward = mp->forward, .learn = mp->learn, .arp_term = mp->arp_term, .mac_age = mp->mac_age, .bd_id = ntohl (mp->bd_id), }; int rv = bd_add_del (&a); vl_api_bridge_domain_add_del_reply_t *rmp; REPLY_MACRO (VL_API_BRIDGE_DOMAIN_ADD_DEL_REPLY); } static void send_bridge_domain_details (l2input_main_t * l2im, unix_shared_memory_queue_t * q, l2_bridge_domain_t * bd_config, u32 n_sw_ifs, u32 context) { vl_api_bridge_domain_details_t *mp; l2_flood_member_t *m; vl_api_bridge_domain_sw_if_t *sw_ifs; l2_input_config_t *input_cfg; mp = vl_msg_api_alloc (sizeof (*mp) + (n_sw_ifs * sizeof (vl_api_bridge_domain_sw_if_t))); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_DETAILS); mp->bd_id = ntohl (bd_config->bd_id); mp->flood = bd_feature_flood (bd_config); mp->uu_flood = bd_feature_uu_flood (bd_config); mp->forward = bd_feature_forward (bd_config); mp->learn = bd_feature_learn (bd_config); mp->arp_term = bd_feature_arp_term (bd_config); mp->bvi_sw_if_index = ntohl (bd_config->bvi_sw_if_index); mp->mac_age = bd_config->mac_age; mp->context = context; sw_ifs = (vl_api_bridge_domain_sw_if_t *) mp->sw_if_details; vec_foreach (m, bd_config->members) { sw_ifs->sw_if_index = ntohl (m->sw_if_index); input_cfg = vec_elt_at_index (l2im->configs, m->sw_if_index); sw_ifs->shg = input_cfg->shg; sw_ifs++; mp->n_sw_ifs++; } mp->n_sw_ifs = htonl (mp->n_sw_ifs); vl_msg_api_send_shmem (q, (u8 *) & mp); } static void vl_api_bridge_domain_dump_t_handler (vl_api_bridge_domain_dump_t * mp) { bd_main_t *bdm = &bd_main; l2input_main_t *l2im = &l2input_main; unix_shared_memory_queue_t *q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; u32 bd_id = ntohl (mp->bd_id); if (bd_id == 0) return; u32 bd_index, end; if (bd_id == ~0) bd_index = 0, end = vec_len (l2im->bd_configs); else { bd_index = bd_find_index (bdm, bd_id); if (bd_index == ~0) return; end = bd_index + 1; } for (; bd_index < end; bd_index++) { l2_bridge_domain_t *bd_config = l2input_bd_config_from_index (l2im, bd_index); /* skip dummy bd_id 0 */ if (bd_config && (bd_config->bd_id > 0)) send_bridge_domain_details (l2im, q, bd_config, vec_len (bd_config->members), mp->context); } } static void vl_api_bridge_flags_t_handler (vl_api_bridge_flags_t * mp) { vlib_main_t *vm = vlib_get_main (); bd_main_t *bdm = &bd_main; vl_api_bridge_flags_reply_t *rmp; int rv = 0; u32 flags = ntohl (mp->feature_bitmap); u32 bd_id = ntohl (mp->bd_id); if (bd_id == 0) { rv = VNET_API_ERROR_BD_NOT_MODIFIABLE; goto out; } u32 bd_index = bd_find_index (bdm, bd_id); if (bd_index == ~0) { rv = VNET_API_ERROR_NO_SUCH_ENTRY; goto out; } bd_set_flags (vm, bd_index, flags, mp->is_set); out: /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_BRIDGE_FLAGS_REPLY, ({ rmp->resulting_feature_bitmap = ntohl(flags); })); /* *INDENT-ON* */ } static void vl_api_l2_interface_vlan_tag_rewrite_t_handler (vl_api_l2_interface_vlan_tag_rewrite_t * mp) { int rv = 0; vl_api_l2_interface_vlan_tag_rewrite_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); vlib_main_t *vm = vlib_get_main (); u32 vtr_op; VALIDATE_SW_IF_INDEX (mp); vtr_op = ntohl (mp->vtr_op); /* The L2 code is unsuspicious */ switch (vtr_op) { case L2_VTR_DISABLED: case L2_VTR_PUSH_1: case L2_VTR_PUSH_2: case L2_VTR_POP_1: case L2_VTR_POP_2: case L2_VTR_TRANSLATE_1_1: case L2_VTR_TRANSLATE_1_2: case L2_VTR_TRANSLATE_2_1: case L2_VTR_TRANSLATE_2_2: break; default: rv = VNET_API_ERROR_INVALID_VALUE; goto bad_sw_if_index; } rv = l2vtr_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op, ntohl (mp->push_dot1q), ntohl (mp->tag1), ntohl (mp->tag2)); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2_INTERFACE_VLAN_TAG_REWRITE_REPLY); } static void vl_api_l2_interface_pbb_tag_rewrite_t_handler (vl_api_l2_interface_pbb_tag_rewrite_t * mp) { vl_api_l2_interface_pbb_tag_rewrite_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); vlib_main_t *vm = vlib_get_main (); u32 vtr_op; int rv = 0; VALIDATE_SW_IF_INDEX (mp); vtr_op = ntohl (mp->vtr_op); switch (vtr_op) { case L2_VTR_DISABLED: case L2_VTR_PUSH_2: case L2_VTR_POP_2: case L2_VTR_TRANSLATE_2_1: break; default: rv = VNET_API_ERROR_INVALID_VALUE; goto bad_sw_if_index; } rv = l2pbb_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op, mp->b_dmac, mp->b_smac, ntohs (mp->b_vlanid), ntohl (mp->i_sid), ntohs (mp->outer_tag)); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2_INTERFACE_PBB_TAG_REWRITE_REPLY); } /* * l2_api_hookup * Add vpe's API message handlers to the table. * vlib has alread mapped shared memory and * added the client registration handlers. * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() */ #define vl_msg_name_crc_list #include <vnet/vnet_all_api_h.h> #undef vl_msg_name_crc_list static void setup_message_id_table (api_main_t * am) { #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); foreach_vl_msg_name_crc_l2; #undef _ } static clib_error_t * l2_api_hookup (vlib_main_t * vm) { api_main_t *am = &api_main; #define _(N,n) \ vl_msg_api_set_handlers(VL_API_##N, #n, \ vl_api_##n##_t_handler, \ vl_noop_handler, \ vl_api_##n##_t_endian, \ vl_api_##n##_t_print, \ sizeof(vl_api_##n##_t), 1); foreach_vpe_api_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (l2_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */