/* *------------------------------------------------------------------ * l2_api.c - layer 2 forwarding api * * Copyright (c) 2016 Cisco and/or its affiliates. * Copyright (c) 2022 Nordix Foundation. * 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/l2/l2_learn.h> #include <vnet/l2/l2_bd.h> #include <vnet/l2/l2_bvi.h> #include <vnet/l2/l2_arp_term.h> #include <vnet/ip/ip_types_api.h> #include <vnet/ethernet/ethernet_types_api.h> #include <vnet/format_fns.h> #include <vnet/l2/l2.api_enum.h> #include <vnet/l2/l2.api_types.h> #define REPLY_MSG_ID_BASE l2input_main.msg_id_base #include <vlibapi/api_helper_macros.h> static void send_l2_xconnect_details (vl_api_registration_t * reg, 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)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + 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_api_send_msg (reg, (u8 *) mp); } static void vl_api_l2_xconnect_dump_t_handler (vl_api_l2_xconnect_dump_t * mp) { vl_api_registration_t *reg; l2input_main_t *l2im = &l2input_main; u32 sw_if_index; l2_input_config_t *config; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; vec_foreach_index (sw_if_index, l2im->configs) { config = vec_elt_at_index (l2im->configs, sw_if_index); if (l2_input_is_xconnect (config)) send_l2_xconnect_details (reg, mp->context, sw_if_index, config->output_sw_if_index); } } 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, vl_api_registration_t * reg, 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)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_L2_FIB_TABLE_DETAILS); mp->bd_id = ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id); mac_address_encode ((mac_address_t *) l2fe_key->fields.mac, mp->mac); mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index); mp->static_mac = (l2fib_entry_result_is_set_STATIC (l2fe_res) ? 1 : 0); mp->filter_mac = (l2fib_entry_result_is_set_FILTER (l2fe_res) ? 1 : 0); mp->bvi_mac = (l2fib_entry_result_is_set_BVI (l2fe_res) ? 1 : 0); mp->context = context; vl_api_send_msg (reg, (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; vl_api_registration_t *reg; uword *p; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) 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, reg, 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; u32 bd_id = ntohl (mp->bd_id); uword *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; } u32 bd_index = p[0]; mac_address_t mac; mac_address_decode (mp->mac, &mac); if (mp->is_add) { if (mp->filter_mac) l2fib_add_filter_entry (mac.bytes, bd_index); else { l2fib_entry_result_flags_t flags = L2FIB_ENTRY_RESULT_FLAG_NONE; u32 sw_if_index = ntohl (mp->sw_if_index); 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 (!l2_input_is_bridge (config)) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; goto bad_sw_if_index; } } if (mp->static_mac) flags |= L2FIB_ENTRY_RESULT_FLAG_STATIC; if (mp->bvi_mac) flags |= L2FIB_ENTRY_RESULT_FLAG_BVI; l2fib_add_entry (mac.bytes, bd_index, sw_if_index, flags); } } else { u32 sw_if_index = ntohl (mp->sw_if_index); if (l2fib_del_entry (mac.bytes, bd_index, sw_if_index)) rv = VNET_API_ERROR_NO_SUCH_ENTRY; } BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2FIB_ADD_DEL_REPLY); } static void vl_api_want_l2_macs_events2_t_handler (vl_api_want_l2_macs_events2_t *mp) { int rv = 0; vl_api_want_l2_macs_events2_reply_t *rmp; l2learn_main_t *lm = &l2learn_main; l2fib_main_t *fm = &l2fib_main; u32 pid = ntohl (mp->pid); if (mp->enable_disable) { if ((lm->client_pid == 0) || (lm->client_pid == pid)) { if (mp->max_macs_in_event) fm->max_macs_in_event = mp->max_macs_in_event * 10; else { rv = VNET_API_ERROR_INVALID_VALUE; goto exit; } /* if scan_delay was not set before */ if (fm->event_scan_delay == 0.0) fm->event_scan_delay = (f64) (10) * 10e-3; lm->client_pid = pid; lm->client_index = mp->client_index; l2fib_flush_all_mac (vlib_get_main ()); } else if (lm->client_pid != pid) { rv = VNET_API_ERROR_L2_MACS_EVENT_CLINET_PRESENT; goto exit; } } else if (lm->client_pid) { lm->client_pid = 0; lm->client_index = 0; } exit: REPLY_MACRO (VL_API_WANT_L2_MACS_EVENTS2_REPLY); } static void vl_api_want_l2_macs_events_t_handler (vl_api_want_l2_macs_events_t *mp) { int rv = 0; vl_api_want_l2_macs_events_reply_t *rmp; l2learn_main_t *lm = &l2learn_main; l2fib_main_t *fm = &l2fib_main; u32 pid = ntohl (mp->pid); u32 learn_limit = ntohl (mp->learn_limit); if (mp->enable_disable) { if ((lm->client_pid == 0) || (lm->client_pid == pid)) { if ((mp->max_macs_in_event == 0) || (mp->scan_delay == 0) || (learn_limit == 0) || (learn_limit > L2LEARN_DEFAULT_LIMIT)) { rv = VNET_API_ERROR_INVALID_VALUE; goto exit; } lm->client_pid = pid; lm->client_index = mp->client_index; fm->max_macs_in_event = mp->max_macs_in_event * 10; fm->event_scan_delay = (f64) (mp->scan_delay) * 10e-3; /* change learn limit and flush all learned MACs */ lm->global_learn_limit = learn_limit; l2fib_flush_all_mac (vlib_get_main ()); } else if (lm->client_pid != pid) { rv = VNET_API_ERROR_L2_MACS_EVENT_CLINET_PRESENT; goto exit; } } else if (lm->client_pid) { lm->client_pid = 0; lm->client_index = 0; if (learn_limit && (learn_limit <= L2LEARN_DEFAULT_LIMIT)) lm->global_learn_limit = learn_limit; else lm->global_learn_limit = L2LEARN_DEFAULT_LIMIT; } exit: REPLY_MACRO (VL_API_WANT_L2_MACS_EVENTS_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_l2fib_set_scan_delay_t_handler (vl_api_l2fib_set_scan_delay_t *mp) { int rv = 0; l2fib_main_t *fm = &l2fib_main; vl_api_l2fib_set_scan_delay_reply_t *rmp; u16 scan_delay = ntohs (mp->scan_delay); if (mp->scan_delay) { fm->event_scan_delay = (f64) (scan_delay) *10e-3; l2fib_flush_all_mac (vlib_get_main ()); } else { rv = VNET_API_ERROR_INVALID_VALUE; goto exit; } exit: REPLY_MACRO (VL_API_L2FIB_SET_SCAN_DELAY_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); u32 bitmap = 0; if (flags & L2_LEARN) bitmap |= L2INPUT_FEAT_LEARN; if (flags & L2_FWD) bitmap |= L2INPUT_FEAT_FWD; if (flags & L2_FLOOD) bitmap |= L2INPUT_FEAT_FLOOD; if (flags & L2_UU_FLOOD) bitmap |= L2INPUT_FEAT_UU_FLOOD; if (flags & L2_ARP_TERM) bitmap |= L2INPUT_FEAT_ARP_TERM; rbm = l2input_intf_bitmap_enable (sw_if_index, bitmap, mp->is_set); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO2(VL_API_L2_FLAGS_REPLY, ({ rmp->resulting_feature_bitmap = ntohl(rbm); })); } static void vl_api_bridge_domain_set_default_learn_limit_t_handler ( vl_api_bridge_domain_set_default_learn_limit_t *mp) { vl_api_bridge_domain_set_default_learn_limit_reply_t *rmp; int rv = 0; l2learn_main.bd_default_learn_limit = ntohl (mp->learn_limit); REPLY_MACRO (VL_API_BRIDGE_DOMAIN_SET_DEFAULT_LEARN_LIMIT_REPLY); } static void vl_api_bridge_domain_set_learn_limit_t_handler ( vl_api_bridge_domain_set_learn_limit_t *mp) { vlib_main_t *vm = vlib_get_main (); bd_main_t *bdm = &bd_main; vl_api_bridge_domain_set_learn_limit_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_learn_limit (vm, *p, ntohl (mp->learn_limit)); out: REPLY_MACRO (VL_API_BRIDGE_DOMAIN_SET_LEARN_LIMIT_REPLY); } 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, .arp_ufwd = mp->arp_ufwd, .mac_age = mp->mac_age, .bd_id = ntohl (mp->bd_id), .bd_tag = mp->bd_tag }; 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 vl_api_bridge_domain_add_del_v2_t_handler ( vl_api_bridge_domain_add_del_v2_t *mp) { vl_api_bridge_domain_add_del_v2_reply_t *rmp; u32 bd_id = ntohl (mp->bd_id); int rv = 0; if ((~0 == bd_id) && (mp->is_add)) bd_id = bd_get_unused_id (); if ((~0 == bd_id) && (mp->is_add)) rv = VNET_API_ERROR_EAGAIN; else { 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, .arp_ufwd = mp->arp_ufwd, .mac_age = mp->mac_age, .bd_id = bd_id, .bd_tag = mp->bd_tag }; rv = bd_add_del (&a); } REPLY_MACRO2 (VL_API_BRIDGE_DOMAIN_ADD_DEL_V2_REPLY, ({ rmp->bd_id = htonl (bd_id); })); } static void send_bridge_domain_details (l2input_main_t * l2im, vl_api_registration_t * reg, 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))); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + 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->arp_ufwd = bd_feature_arp_ufwd (bd_config); mp->bvi_sw_if_index = ntohl (bd_config->bvi_sw_if_index); mp->uu_fwd_sw_if_index = ntohl (bd_config->uu_fwd_sw_if_index); mp->mac_age = bd_config->mac_age; if (bd_config->bd_tag) { strncpy ((char *) mp->bd_tag, (char *) bd_config->bd_tag, ARRAY_LEN (mp->bd_tag) - 1); mp->bd_tag[ARRAY_LEN (mp->bd_tag) - 1] = 0; } 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_api_send_msg (reg, (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; vl_api_registration_t *reg; u32 bd_id, bd_index, end, filter_sw_if_index; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; filter_sw_if_index = ntohl (mp->sw_if_index); if (filter_sw_if_index != ~0) return; /* UNIMPLEMENTED */ bd_id = ntohl (mp->bd_id); if (bd_id == 0) return; 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 placeholder bd_id 0 */ if (bd_config && (bd_config->bd_id > 0)) send_bridge_domain_details (l2im, reg, bd_config, vec_len (bd_config->members), mp->context); } } static bd_flags_t bd_flags_decode (vl_api_bd_flags_t v) { bd_flags_t f = L2_NONE; v = ntohl (v); if (v & BRIDGE_API_FLAG_LEARN) f |= L2_LEARN; if (v & BRIDGE_API_FLAG_FWD) f |= L2_FWD; if (v & BRIDGE_API_FLAG_FLOOD) f |= L2_FLOOD; if (v & BRIDGE_API_FLAG_UU_FLOOD) f |= L2_UU_FLOOD; if (v & BRIDGE_API_FLAG_ARP_TERM) f |= L2_ARP_TERM; if (v & BRIDGE_API_FLAG_ARP_UFWD) f |= L2_ARP_UFWD; return (f); } 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; u32 bitmap = 0; int rv = 0; bd_flags_t flags = bd_flags_decode (mp->flags); 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; } bitmap = bd_set_flags (vm, bd_index, flags, mp->is_set); out: REPLY_MACRO2(VL_API_BRIDGE_FLAGS_REPLY, ({ rmp->resulting_feature_bitmap = ntohl(bitmap); })); } 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; mac_address_t b_dmac, b_smac; 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; } mac_address_decode (mp->b_dmac, &b_dmac); mac_address_decode (mp->b_smac, &b_smac); rv = l2pbb_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op, b_dmac.bytes, b_smac.bytes, 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); } static void vl_api_sw_interface_set_l2_xconnect_t_handler (vl_api_sw_interface_set_l2_xconnect_t * mp) { vl_api_sw_interface_set_l2_xconnect_reply_t *rmp; int rv = 0; u32 rx_sw_if_index = ntohl (mp->rx_sw_if_index); u32 tx_sw_if_index = ntohl (mp->tx_sw_if_index); vlib_main_t *vm = vlib_get_main (); vnet_main_t *vnm = vnet_get_main (); VALIDATE_RX_SW_IF_INDEX (mp); if (mp->enable) { VALIDATE_TX_SW_IF_INDEX (mp); rv = set_int_l2_mode (vm, vnm, MODE_L2_XC, rx_sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL, 0, tx_sw_if_index); } else { rv = set_int_l2_mode (vm, vnm, MODE_L3, rx_sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL, 0, 0); } switch (rv) { case MODE_ERROR_ETH: rv = VNET_API_ERROR_NON_ETHERNET; break; case MODE_ERROR_BVI_DEF: rv = VNET_API_ERROR_BD_ALREADY_HAS_BVI; break; } BAD_RX_SW_IF_INDEX_LABEL; BAD_TX_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_L2_XCONNECT_REPLY); } static int l2_bd_port_type_decode (vl_api_l2_port_type_t v, l2_bd_port_type_t * l) { v = clib_net_to_host_u32 (v); switch (v) { case L2_API_PORT_TYPE_NORMAL: *l = L2_BD_PORT_TYPE_NORMAL; return 0; case L2_API_PORT_TYPE_BVI: *l = L2_BD_PORT_TYPE_BVI; return 0; case L2_API_PORT_TYPE_UU_FWD: *l = L2_BD_PORT_TYPE_UU_FWD; return 0; } return (VNET_API_ERROR_INVALID_VALUE); } static void vl_api_sw_interface_set_l2_bridge_t_handler (vl_api_sw_interface_set_l2_bridge_t * mp) { bd_main_t *bdm = &bd_main; vl_api_sw_interface_set_l2_bridge_reply_t *rmp; int rv = 0; vlib_main_t *vm = vlib_get_main (); vnet_main_t *vnm = vnet_get_main (); l2_bd_port_type_t pt; VALIDATE_RX_SW_IF_INDEX (mp); u32 rx_sw_if_index = ntohl (mp->rx_sw_if_index); rv = l2_bd_port_type_decode (mp->port_type, &pt); if (0 != rv) goto out; if (mp->enable) { VALIDATE_BD_ID (mp); u32 bd_id = ntohl (mp->bd_id); u32 bd_index = bd_find_or_add_bd_index (bdm, bd_id); rv = set_int_l2_mode (vm, vnm, MODE_L2_BRIDGE, rx_sw_if_index, bd_index, pt, mp->shg, 0); } else { rv = set_int_l2_mode (vm, vnm, MODE_L3, rx_sw_if_index, 0, pt, 0, 0); } switch (rv) { case MODE_ERROR_ETH: rv = VNET_API_ERROR_NON_ETHERNET; break; case MODE_ERROR_BVI_DEF: rv = VNET_API_ERROR_BD_ALREADY_HAS_BVI; break; } BAD_RX_SW_IF_INDEX_LABEL; BAD_BD_ID_LABEL; out: REPLY_MACRO (VL_API_SW_INTERFACE_SET_L2_BRIDGE_REPLY); } static void send_bd_ip_mac_entry (vpe_api_main_t * am, vl_api_registration_t * reg, u32 bd_id, const ip46_address_t * ip, ip46_type_t itype, const mac_address_t * mac, u32 context) { vl_api_bd_ip_mac_details_t *mp; mp = vl_msg_api_alloc (sizeof (*mp)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (REPLY_MSG_ID_BASE + VL_API_BD_IP_MAC_DETAILS); mp->context = context; mp->entry.bd_id = ntohl (bd_id); ip_address_encode (ip, itype, &mp->entry.ip); mac_address_encode (mac, mp->entry.mac); vl_api_send_msg (reg, (u8 *) mp); } static void vl_api_bd_ip_mac_dump_t_handler (vl_api_bd_ip_mac_dump_t * mp) { vpe_api_main_t *am = &vpe_api_main; bd_main_t *bdm = &bd_main; l2_bridge_domain_t *bd_config; u32 bd_id = ntohl (mp->bd_id); u32 bd_index, start, end; vl_api_registration_t *reg; uword *p; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; /* see bd_id: ~0 means "any" */ if (bd_id == ~0) { start = 1; end = vec_len (l2input_main.bd_configs); } else { p = hash_get (bdm->bd_index_by_bd_id, bd_id); if (p == 0) return; bd_index = p[0]; vec_validate (l2input_main.bd_configs, bd_index); start = bd_index; end = start + 1; } for (bd_index = start; bd_index < end; bd_index++) { bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index); if (bd_is_valid (bd_config)) { ip4_address_t ip4_addr; ip6_address_t *ip6_addr; mac_address_t mac; u64 mac64; bd_id = bd_config->bd_id; hash_foreach (ip4_addr.as_u32, mac64, bd_config->mac_by_ip4, ({ ip46_address_t ip = { .ip4 = ip4_addr, }; mac_address_from_u64(&mac, mac64); send_bd_ip_mac_entry (am, reg, bd_id, &ip, IP46_TYPE_IP4, &mac, mp->context); })); hash_foreach_mem (ip6_addr, mac64, bd_config->mac_by_ip6, ({ ip46_address_t ip = { .ip6 = *ip6_addr, }; mac_address_from_u64(&mac, mac64); send_bd_ip_mac_entry (am, reg, bd_id, &ip, IP46_TYPE_IP6, &mac, mp->context); })); } } } static void vl_api_bd_ip_mac_add_del_t_handler (vl_api_bd_ip_mac_add_del_t * mp) { ip46_address_t ip_addr = ip46_address_initializer; vl_api_bd_ip_mac_add_del_reply_t *rmp; bd_main_t *bdm = &bd_main; u32 bd_index, bd_id; mac_address_t mac; ip46_type_t type; int rv = 0; uword *p; bd_id = ntohl (mp->entry.bd_id); 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_index = p[0]; type = ip_address_decode (&mp->entry.ip, &ip_addr); mac_address_decode (mp->entry.mac, &mac); if (bd_add_del_ip_mac (bd_index, type, &ip_addr, &mac, mp->is_add)) rv = VNET_API_ERROR_UNSPECIFIED; out: REPLY_MACRO (VL_API_BD_IP_MAC_ADD_DEL_REPLY); } static void vl_api_bd_ip_mac_flush_t_handler (vl_api_bd_ip_mac_flush_t * mp) { vl_api_bd_ip_mac_flush_reply_t *rmp; bd_main_t *bdm = &bd_main; u32 bd_index, bd_id; int rv = 0; uword *p; bd_id = ntohl (mp->bd_id); 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_index = p[0]; bd_flush_ip_mac (bd_index); out: REPLY_MACRO (VL_API_BD_IP_MAC_FLUSH_REPLY); } extern void l2_efp_filter_configure (vnet_main_t * vnet_main, u32 sw_if_index, u8 enable); static void vl_api_l2_interface_efp_filter_t_handler (vl_api_l2_interface_efp_filter_t * mp) { int rv; vl_api_l2_interface_efp_filter_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); VALIDATE_SW_IF_INDEX (mp); // enable/disable the feature l2_efp_filter_configure (vnm, ntohl (mp->sw_if_index), mp->enable_disable); rv = vnm->api_errno; BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2_INTERFACE_EFP_FILTER_REPLY); } static void vl_api_l2_patch_add_del_t_handler (vl_api_l2_patch_add_del_t * mp) { extern int vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index, int is_add); vl_api_l2_patch_add_del_reply_t *rmp; int vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index, int is_add); int rv = 0; VALIDATE_RX_SW_IF_INDEX (mp); VALIDATE_TX_SW_IF_INDEX (mp); rv = vnet_l2_patch_add_del (ntohl (mp->rx_sw_if_index), ntohl (mp->tx_sw_if_index), (int) (mp->is_add != 0)); BAD_RX_SW_IF_INDEX_LABEL; BAD_TX_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_L2_PATCH_ADD_DEL_REPLY); } static void vl_api_sw_interface_set_vpath_t_handler (vl_api_sw_interface_set_vpath_t * mp) { vl_api_sw_interface_set_vpath_reply_t *rmp; int rv = 0; u32 sw_if_index = ntohl (mp->sw_if_index); VALIDATE_SW_IF_INDEX (mp); l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_VPATH, mp->enable); vnet_feature_enable_disable ("ip4-unicast", "vpath-input-ip4", sw_if_index, mp->enable, 0, 0); vnet_feature_enable_disable ("ip4-multicast", "vpath-input-ip4", sw_if_index, mp->enable, 0, 0); vnet_feature_enable_disable ("ip6-unicast", "vpath-input-ip6", sw_if_index, mp->enable, 0, 0); vnet_feature_enable_disable ("ip6-multicast", "vpath-input-ip6", sw_if_index, mp->enable, 0, 0); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_VPATH_REPLY); } static void vl_api_bvi_create_t_handler (vl_api_bvi_create_t * mp) { vl_api_bvi_create_reply_t *rmp; mac_address_t mac; u32 sw_if_index; int rv; mac_address_decode (mp->mac, &mac); rv = l2_bvi_create (ntohl (mp->user_instance), &mac, &sw_if_index); REPLY_MACRO2(VL_API_BVI_CREATE_REPLY, ({ rmp->sw_if_index = ntohl (sw_if_index); })); } static void vl_api_bvi_delete_t_handler (vl_api_bvi_delete_t * mp) { vl_api_bvi_delete_reply_t *rmp; int rv; rv = l2_bvi_delete (ntohl (mp->sw_if_index)); REPLY_MACRO (VL_API_BVI_DELETE_REPLY); } static bool l2_arp_term_publish_event_is_equal (const l2_arp_term_publish_event_t * e1, const l2_arp_term_publish_event_t * e2) { if (e1 == NULL || e2 == NULL) return false; return (ip46_address_is_equal (&e1->ip, &e2->ip) && (e1->sw_if_index == e2->sw_if_index) && (mac_address_equal (&e1->mac, &e2->mac))); } static uword l2_arp_term_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { /* These cross the longjmp boundary (vlib_process_wait_for_event) * and need to be volatile - to prevent them from being optimized into * a register - which could change during suspension */ volatile f64 last = vlib_time_now (vm); volatile l2_arp_term_publish_event_t last_event = { }; l2_arp_term_main_t *l2am = &l2_arp_term_main; while (1) { uword event_type = L2_ARP_TERM_EVENT_PUBLISH; vpe_client_registration_t *reg; f64 now; vlib_process_wait_for_event (vm); vlib_process_get_event_data (vm, &event_type); now = vlib_time_now (vm); if (event_type == L2_ARP_TERM_EVENT_PUBLISH) { l2_arp_term_publish_event_t *event; vec_foreach (event, l2am->publish_events) { /* dampen duplicate events - cast away volatile */ if (l2_arp_term_publish_event_is_equal (event, (l2_arp_term_publish_event_t *) & last_event) && (now - last) < 10.0) { continue; } last_event = *event; last = now; pool_foreach (reg, vpe_api_main.l2_arp_term_events_registrations) { vl_api_registration_t *vl_reg; vl_reg = vl_api_client_index_to_registration (reg->client_index); ALWAYS_ASSERT (vl_reg != NULL); if (vl_reg && vl_api_can_send_msg (vl_reg)) { vl_api_l2_arp_term_event_t *vevent; vevent = vl_msg_api_alloc (sizeof *vevent); clib_memset (vevent, 0, sizeof *vevent); vevent->_vl_msg_id = htons (REPLY_MSG_ID_BASE + VL_API_L2_ARP_TERM_EVENT); vevent->client_index = reg->client_index; vevent->pid = reg->client_pid; ip_address_encode (&event->ip, event->type, &vevent->ip); vevent->sw_if_index = htonl (event->sw_if_index); mac_address_encode (&event->mac, vevent->mac); vl_api_send_msg (vl_reg, (u8 *) vevent); } } } vec_reset_length (l2am->publish_events); } } return 0; } VLIB_REGISTER_NODE (l2_arp_term_process_node) = { .function = l2_arp_term_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "l2-arp-term-publisher", }; static void vl_api_want_l2_arp_term_events_t_handler (vl_api_want_l2_arp_term_events_t * mp) { vl_api_want_l2_arp_term_events_reply_t *rmp; vpe_api_main_t *am = &vpe_api_main; vpe_client_registration_t *rp; int rv = 0; uword *p; p = hash_get (am->l2_arp_term_events_registration_hash, mp->client_index); if (p) { if (mp->enable) { clib_warning ("pid %d: already enabled...", mp->pid); rv = VNET_API_ERROR_INVALID_REGISTRATION; goto reply; } else { rp = pool_elt_at_index (am->l2_arp_term_events_registrations, p[0]); pool_put (am->l2_arp_term_events_registrations, rp); hash_unset (am->l2_arp_term_events_registration_hash, mp->client_index); if (pool_elts (am->l2_arp_term_events_registrations) == 0) l2_arp_term_set_publisher_node (false); goto reply; } } if (mp->enable == 0) { clib_warning ("pid %d: already disabled...", mp->pid); rv = VNET_API_ERROR_INVALID_REGISTRATION; goto reply; } pool_get (am->l2_arp_term_events_registrations, rp); rp->client_index = mp->client_index; rp->client_pid = mp->pid; hash_set (am->l2_arp_term_events_registration_hash, rp->client_index, rp - am->l2_arp_term_events_registrations); l2_arp_term_set_publisher_node (true); reply: REPLY_MACRO (VL_API_WANT_L2_ARP_TERM_EVENTS_REPLY); } static clib_error_t * want_l2_arp_term_events_reaper (u32 client_index) { vpe_client_registration_t *rp; vpe_api_main_t *am; uword *p; am = &vpe_api_main; /* remove from the registration hash */ p = hash_get (am->l2_arp_term_events_registration_hash, client_index); if (p) { rp = pool_elt_at_index (am->l2_arp_term_events_registrations, p[0]); pool_put (am->l2_arp_term_events_registrations, rp); hash_unset (am->l2_arp_term_events_registration_hash, client_index); if (pool_elts (am->l2_arp_term_events_registrations) == 0) l2_arp_term_set_publisher_node (false); } return (NULL); } VL_MSG_API_REAPER_FUNCTION (want_l2_arp_term_events_reaper); #include <vnet/l2/l2.api.c> static clib_error_t * l2_api_hookup (vlib_main_t * vm) { api_main_t *am = vlibapi_get_main (); /* * Set up the (msg_name, crc, message-id) table */ REPLY_MSG_ID_BASE = setup_message_id_table (); /* Mark VL_API_BRIDGE_DOMAIN_DUMP as mp safe */ vl_api_set_msg_thread_safe ( am, REPLY_MSG_ID_BASE + VL_API_BRIDGE_DOMAIN_DUMP, 1); return 0; } VLIB_API_INIT_FUNCTION (l2_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */