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e9e2c950d7
Import source code from external `bfdd` daemon ported from Cumulus PTM. Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
161 lines
3.7 KiB
C
161 lines
3.7 KiB
C
/*********************************************************************
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* Copyright 2017-2018 Network Device Education Foundation, Inc. ("NetDEF")
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* bfdctl.h: all BFDd control socket protocol definitions.
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*
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* Authors
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* -------
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* Rafael Zalamena <rzalamena@opensourcerouting.org>
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*/
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#ifndef _BFDCTRL_H_
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#define _BFDCTRL_H_
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#include <netinet/in.h>
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#include <stdbool.h>
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#include <stdint.h>
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/*
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* Auxiliary definitions
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*/
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struct sockaddr_any {
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union {
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struct sockaddr_in sa_sin;
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struct sockaddr_in6 sa_sin6;
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};
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};
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#ifndef MAXNAMELEN
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#define MAXNAMELEN 32
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#endif
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#define BPC_DEF_DETECTMULTIPLIER 3
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#define BPC_DEF_RECEIVEINTERVAL 300 /* milliseconds */
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#define BPC_DEF_TRANSMITINTERVAL 300 /* milliseconds */
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#define BPC_DEF_ECHOINTERVAL 50 /* milliseconds */
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/* Peer status */
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enum bfd_peer_status {
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BPS_SHUTDOWN = 0, /* == PTM_BFD_ADM_DOWN, "adm-down" */
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BPS_DOWN = 1, /* == PTM_BFD_DOWN, "down" */
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BPS_INIT = 2, /* == PTM_BFD_INIT, "init" */
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BPS_UP = 3, /* == PTM_BFD_UP, "up" */
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};
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struct bfd_peer_cfg {
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bool bpc_mhop;
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bool bpc_ipv4;
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struct sockaddr_any bpc_peer;
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struct sockaddr_any bpc_local;
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bool bpc_has_label;
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char bpc_label[MAXNAMELEN];
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bool bpc_has_vxlan;
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unsigned int bpc_vxlan;
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bool bpc_has_localif;
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char bpc_localif[MAXNAMELEN + 1];
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bool bpc_has_vrfname;
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char bpc_vrfname[MAXNAMELEN + 1];
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bool bpc_has_detectmultiplier;
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uint8_t bpc_detectmultiplier;
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bool bpc_has_recvinterval;
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uint64_t bpc_recvinterval;
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bool bpc_has_txinterval;
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uint64_t bpc_txinterval;
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bool bpc_has_echointerval;
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uint64_t bpc_echointerval;
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bool bpc_echo;
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bool bpc_createonly;
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bool bpc_shutdown;
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/* Status information */
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enum bfd_peer_status bpc_bps;
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uint32_t bpc_id;
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uint32_t bpc_remoteid;
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uint8_t bpc_diag;
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uint8_t bpc_remotediag;
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uint8_t bpc_remote_detectmultiplier;
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uint64_t bpc_remote_recvinterval;
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uint64_t bpc_remote_txinterval;
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uint64_t bpc_remote_echointerval;
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uint64_t bpc_lastevent;
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};
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/*
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* Protocol definitions
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*/
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enum bc_msg_version {
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BMV_VERSION_1 = 1,
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};
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enum bc_msg_type {
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BMT_RESPONSE = 1,
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BMT_REQUEST_ADD = 2,
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BMT_REQUEST_DEL = 3,
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BMT_NOTIFY = 4,
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BMT_NOTIFY_ADD = 5,
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BMT_NOTIFY_DEL = 6,
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};
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/* Notify flags to use with bcm_notify. */
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#define BCM_NOTIFY_ALL ((uint64_t)-1)
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#define BCM_NOTIFY_PEER_STATE (1ULL << 0)
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#define BCM_NOTIFY_CONFIG (1ULL << 1)
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#define BCM_NOTIFY_NONE 0
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/* Response 'status' definitions. */
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#define BCM_RESPONSE_OK "ok"
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#define BCM_RESPONSE_ERROR "error"
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/* Notify operation. */
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#define BCM_NOTIFY_PEER_STATUS "status"
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#define BCM_NOTIFY_CONFIG_ADD "add"
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#define BCM_NOTIFY_CONFIG_DELETE "delete"
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#define BCM_NOTIFY_CONFIG_UPDATE "update"
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/* Notification special ID. */
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#define BCM_NOTIFY_ID 0
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struct bfd_control_msg {
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/* Total length without the header. */
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uint32_t bcm_length;
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/*
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* Message request/response id.
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* All requests will have a correspondent response with the
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* same id.
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*/
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uint16_t bcm_id;
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/* Message type. */
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uint8_t bcm_type;
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/* Message version. */
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uint8_t bcm_ver;
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/* Message payload. */
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uint8_t bcm_data[0];
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};
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#endif
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