398 lines
13 KiB
C
398 lines
13 KiB
C
/* $NetBSD: if_bridgevar.h,v 1.4 2003/07/08 07:13:50 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright 2001 Wasabi Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed for the NetBSD Project by
|
|
* Wasabi Systems, Inc.
|
|
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net)
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Jason L. Wright
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* OpenBSD: if_bridge.h,v 1.14 2001/03/22 03:48:29 jason Exp
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Data structure and control definitions for STP interfaces.
|
|
*/
|
|
|
|
#include <sys/callout.h>
|
|
#include <sys/queue.h>
|
|
|
|
/* STP port states */
|
|
#define BSTP_IFSTATE_DISABLED 0
|
|
#define BSTP_IFSTATE_LISTENING 1
|
|
#define BSTP_IFSTATE_LEARNING 2
|
|
#define BSTP_IFSTATE_FORWARDING 3
|
|
#define BSTP_IFSTATE_BLOCKING 4
|
|
#define BSTP_IFSTATE_DISCARDING 5
|
|
|
|
#define BSTP_TCSTATE_ACTIVE 1
|
|
#define BSTP_TCSTATE_DETECTED 2
|
|
#define BSTP_TCSTATE_INACTIVE 3
|
|
#define BSTP_TCSTATE_LEARNING 4
|
|
#define BSTP_TCSTATE_PROPAG 5
|
|
#define BSTP_TCSTATE_ACK 6
|
|
#define BSTP_TCSTATE_TC 7
|
|
#define BSTP_TCSTATE_TCN 8
|
|
|
|
#define BSTP_ROLE_DISABLED 0
|
|
#define BSTP_ROLE_ROOT 1
|
|
#define BSTP_ROLE_DESIGNATED 2
|
|
#define BSTP_ROLE_ALTERNATE 3
|
|
#define BSTP_ROLE_BACKUP 4
|
|
|
|
#ifdef _KERNEL
|
|
|
|
/* STP port flags */
|
|
#define BSTP_PORT_CANMIGRATE 0x0001
|
|
#define BSTP_PORT_NEWINFO 0x0002
|
|
#define BSTP_PORT_DISPUTED 0x0004
|
|
#define BSTP_PORT_ADMCOST 0x0008
|
|
#define BSTP_PORT_AUTOEDGE 0x0010
|
|
#define BSTP_PORT_AUTOPTP 0x0020
|
|
#define BSTP_PORT_ADMEDGE 0x0040
|
|
#define BSTP_PORT_PNDCOST 0x0080
|
|
|
|
/* BPDU priority */
|
|
#define BSTP_PDU_SUPERIOR 1
|
|
#define BSTP_PDU_REPEATED 2
|
|
#define BSTP_PDU_INFERIOR 3
|
|
#define BSTP_PDU_INFERIORALT 4
|
|
#define BSTP_PDU_OTHER 5
|
|
|
|
/* BPDU flags */
|
|
#define BSTP_PDU_PRMASK 0x0c /* Port Role */
|
|
#define BSTP_PDU_PRSHIFT 2 /* Port Role offset */
|
|
#define BSTP_PDU_F_UNKN 0x00 /* Unknown port (00) */
|
|
#define BSTP_PDU_F_ALT 0x01 /* Alt/Backup port (01) */
|
|
#define BSTP_PDU_F_ROOT 0x02 /* Root port (10) */
|
|
#define BSTP_PDU_F_DESG 0x03 /* Designated port (11) */
|
|
|
|
#define BSTP_PDU_STPMASK 0x81 /* strip unused STP flags */
|
|
#define BSTP_PDU_RSTPMASK 0x7f /* strip unused RSTP flags */
|
|
#define BSTP_PDU_F_TC 0x01 /* Topology change */
|
|
#define BSTP_PDU_F_P 0x02 /* Proposal flag */
|
|
#define BSTP_PDU_F_L 0x10 /* Learning flag */
|
|
#define BSTP_PDU_F_F 0x20 /* Forwarding flag */
|
|
#define BSTP_PDU_F_A 0x40 /* Agreement flag */
|
|
#define BSTP_PDU_F_TCA 0x80 /* Topology change ack */
|
|
|
|
/*
|
|
* Spanning tree defaults.
|
|
*/
|
|
#define BSTP_DEFAULT_MAX_AGE (20 * 256)
|
|
#define BSTP_DEFAULT_HELLO_TIME (2 * 256)
|
|
#define BSTP_DEFAULT_FORWARD_DELAY (15 * 256)
|
|
#define BSTP_DEFAULT_HOLD_TIME (1 * 256)
|
|
#define BSTP_DEFAULT_MIGRATE_DELAY (3 * 256)
|
|
#define BSTP_DEFAULT_HOLD_COUNT 6
|
|
#define BSTP_DEFAULT_BRIDGE_PRIORITY 0x8000
|
|
#define BSTP_DEFAULT_PORT_PRIORITY 0x80
|
|
#define BSTP_DEFAULT_PATH_COST 55
|
|
#define BSTP_MIN_HELLO_TIME (1 * 256)
|
|
#define BSTP_MIN_MAX_AGE (6 * 256)
|
|
#define BSTP_MIN_FORWARD_DELAY (4 * 256)
|
|
#define BSTP_MIN_HOLD_COUNT 1
|
|
#define BSTP_MAX_HELLO_TIME (2 * 256)
|
|
#define BSTP_MAX_MAX_AGE (40 * 256)
|
|
#define BSTP_MAX_FORWARD_DELAY (30 * 256)
|
|
#define BSTP_MAX_HOLD_COUNT 10
|
|
#define BSTP_MAX_PRIORITY 61440
|
|
#define BSTP_MAX_PORT_PRIORITY 240
|
|
#define BSTP_MAX_PATH_COST 200000000
|
|
|
|
/* BPDU message types */
|
|
#define BSTP_MSGTYPE_CFG 0x00 /* Configuration */
|
|
#define BSTP_MSGTYPE_RSTP 0x02 /* Rapid STP */
|
|
#define BSTP_MSGTYPE_TCN 0x80 /* Topology chg notification */
|
|
|
|
/* Protocol versions */
|
|
#define BSTP_PROTO_ID 0x00
|
|
#define BSTP_PROTO_STP 0x00
|
|
#define BSTP_PROTO_RSTP 0x02
|
|
#define BSTP_PROTO_MAX BSTP_PROTO_RSTP
|
|
|
|
#define BSTP_INFO_RECEIVED 1
|
|
#define BSTP_INFO_MINE 2
|
|
#define BSTP_INFO_AGED 3
|
|
#define BSTP_INFO_DISABLED 4
|
|
|
|
|
|
#define BSTP_MESSAGE_AGE_INCR (1 * 256) /* in 256ths of a second */
|
|
#define BSTP_TICK_VAL (1 * 256) /* in 256ths of a second */
|
|
#define BSTP_LINK_TIMER (BSTP_TICK_VAL * 15)
|
|
|
|
/*
|
|
* Driver callbacks for STP state changes
|
|
*/
|
|
typedef void (*bstp_state_cb_t)(struct ifnet *, int);
|
|
typedef void (*bstp_rtage_cb_t)(struct ifnet *, int);
|
|
struct bstp_cb_ops {
|
|
bstp_state_cb_t bcb_state;
|
|
bstp_rtage_cb_t bcb_rtage;
|
|
};
|
|
|
|
/*
|
|
* Because BPDU's do not make nicely aligned structures, two different
|
|
* declarations are used: bstp_?bpdu (wire representation, packed) and
|
|
* bstp_*_unit (internal, nicely aligned version).
|
|
*/
|
|
|
|
/* configuration bridge protocol data unit */
|
|
struct bstp_cbpdu {
|
|
uint8_t cbu_dsap; /* LLC: destination sap */
|
|
uint8_t cbu_ssap; /* LLC: source sap */
|
|
uint8_t cbu_ctl; /* LLC: control */
|
|
uint16_t cbu_protoid; /* protocol id */
|
|
uint8_t cbu_protover; /* protocol version */
|
|
uint8_t cbu_bpdutype; /* message type */
|
|
uint8_t cbu_flags; /* flags (below) */
|
|
|
|
/* root id */
|
|
uint16_t cbu_rootpri; /* root priority */
|
|
uint8_t cbu_rootaddr[6]; /* root address */
|
|
|
|
uint32_t cbu_rootpathcost; /* root path cost */
|
|
|
|
/* bridge id */
|
|
uint16_t cbu_bridgepri; /* bridge priority */
|
|
uint8_t cbu_bridgeaddr[6]; /* bridge address */
|
|
|
|
uint16_t cbu_portid; /* port id */
|
|
uint16_t cbu_messageage; /* current message age */
|
|
uint16_t cbu_maxage; /* maximum age */
|
|
uint16_t cbu_hellotime; /* hello time */
|
|
uint16_t cbu_forwarddelay; /* forwarding delay */
|
|
uint8_t cbu_versionlen; /* version 1 length */
|
|
} __packed;
|
|
#define BSTP_BPDU_STP_LEN (3 + 35) /* LLC + STP pdu */
|
|
#define BSTP_BPDU_RSTP_LEN (3 + 36) /* LLC + RSTP pdu */
|
|
|
|
/* topology change notification bridge protocol data unit */
|
|
struct bstp_tbpdu {
|
|
uint8_t tbu_dsap; /* LLC: destination sap */
|
|
uint8_t tbu_ssap; /* LLC: source sap */
|
|
uint8_t tbu_ctl; /* LLC: control */
|
|
uint16_t tbu_protoid; /* protocol id */
|
|
uint8_t tbu_protover; /* protocol version */
|
|
uint8_t tbu_bpdutype; /* message type */
|
|
} __packed;
|
|
|
|
/*
|
|
* Timekeeping structure used in spanning tree code.
|
|
*/
|
|
struct bstp_timer {
|
|
int active;
|
|
int latched;
|
|
int value;
|
|
};
|
|
|
|
struct bstp_pri_vector {
|
|
uint64_t pv_root_id;
|
|
uint32_t pv_cost;
|
|
uint64_t pv_dbridge_id;
|
|
uint16_t pv_dport_id;
|
|
uint16_t pv_port_id;
|
|
};
|
|
|
|
struct bstp_config_unit {
|
|
struct bstp_pri_vector cu_pv;
|
|
uint16_t cu_message_age;
|
|
uint16_t cu_max_age;
|
|
uint16_t cu_forward_delay;
|
|
uint16_t cu_hello_time;
|
|
uint8_t cu_message_type;
|
|
uint8_t cu_topology_change_ack;
|
|
uint8_t cu_topology_change;
|
|
uint8_t cu_proposal;
|
|
uint8_t cu_agree;
|
|
uint8_t cu_learning;
|
|
uint8_t cu_forwarding;
|
|
uint8_t cu_role;
|
|
};
|
|
|
|
struct bstp_tcn_unit {
|
|
uint8_t tu_message_type;
|
|
};
|
|
|
|
struct bstp_port {
|
|
LIST_ENTRY(bstp_port) bp_next;
|
|
struct ifnet *bp_ifp; /* parent if */
|
|
struct bstp_state *bp_bs;
|
|
uint8_t bp_active;
|
|
uint8_t bp_protover;
|
|
uint32_t bp_flags;
|
|
uint32_t bp_path_cost;
|
|
uint16_t bp_port_msg_age;
|
|
uint16_t bp_port_max_age;
|
|
uint16_t bp_port_fdelay;
|
|
uint16_t bp_port_htime;
|
|
uint16_t bp_desg_msg_age;
|
|
uint16_t bp_desg_max_age;
|
|
uint16_t bp_desg_fdelay;
|
|
uint16_t bp_desg_htime;
|
|
struct bstp_timer bp_edge_delay_timer;
|
|
struct bstp_timer bp_forward_delay_timer;
|
|
struct bstp_timer bp_hello_timer;
|
|
struct bstp_timer bp_message_age_timer;
|
|
struct bstp_timer bp_migrate_delay_timer;
|
|
struct bstp_timer bp_recent_backup_timer;
|
|
struct bstp_timer bp_recent_root_timer;
|
|
struct bstp_timer bp_tc_timer;
|
|
struct bstp_config_unit bp_msg_cu;
|
|
struct bstp_pri_vector bp_desg_pv;
|
|
struct bstp_pri_vector bp_port_pv;
|
|
uint16_t bp_port_id;
|
|
uint8_t bp_state;
|
|
uint8_t bp_tcstate;
|
|
uint8_t bp_role;
|
|
uint8_t bp_infois;
|
|
uint8_t bp_tc_ack;
|
|
uint8_t bp_tc_prop;
|
|
uint8_t bp_fdbflush;
|
|
uint8_t bp_priority;
|
|
uint8_t bp_ptp_link;
|
|
uint8_t bp_agree;
|
|
uint8_t bp_agreed;
|
|
uint8_t bp_sync;
|
|
uint8_t bp_synced;
|
|
uint8_t bp_proposing;
|
|
uint8_t bp_proposed;
|
|
uint8_t bp_operedge;
|
|
uint8_t bp_reroot;
|
|
uint8_t bp_rcvdtc;
|
|
uint8_t bp_rcvdtca;
|
|
uint8_t bp_rcvdtcn;
|
|
uint32_t bp_forward_transitions;
|
|
uint8_t bp_txcount;
|
|
struct task bp_statetask;
|
|
struct task bp_rtagetask;
|
|
};
|
|
|
|
/*
|
|
* Software state for each bridge STP.
|
|
*/
|
|
struct bstp_state {
|
|
LIST_ENTRY(bstp_state) bs_list;
|
|
uint8_t bs_running;
|
|
struct mtx bs_mtx;
|
|
struct bstp_pri_vector bs_bridge_pv;
|
|
struct bstp_pri_vector bs_root_pv;
|
|
struct bstp_port *bs_root_port;
|
|
uint8_t bs_protover;
|
|
uint16_t bs_migration_delay;
|
|
uint16_t bs_edge_delay;
|
|
uint16_t bs_bridge_max_age;
|
|
uint16_t bs_bridge_fdelay;
|
|
uint16_t bs_bridge_htime;
|
|
uint16_t bs_root_msg_age;
|
|
uint16_t bs_root_max_age;
|
|
uint16_t bs_root_fdelay;
|
|
uint16_t bs_root_htime;
|
|
uint16_t bs_hold_time;
|
|
uint16_t bs_bridge_priority;
|
|
uint8_t bs_txholdcount;
|
|
uint8_t bs_allsynced;
|
|
struct callout bs_bstpcallout; /* STP callout */
|
|
struct bstp_timer bs_link_timer;
|
|
struct timeval bs_last_tc_time;
|
|
LIST_HEAD(, bstp_port) bs_bplist;
|
|
bstp_state_cb_t bs_state_cb;
|
|
bstp_rtage_cb_t bs_rtage_cb;
|
|
struct vnet *bs_vnet;
|
|
};
|
|
|
|
#define BSTP_LOCK_INIT(_bs) mtx_init(&(_bs)->bs_mtx, "bstp", NULL, MTX_DEF)
|
|
#define BSTP_LOCK_DESTROY(_bs) mtx_destroy(&(_bs)->bs_mtx)
|
|
#define BSTP_LOCK(_bs) mtx_lock(&(_bs)->bs_mtx)
|
|
#define BSTP_UNLOCK(_bs) mtx_unlock(&(_bs)->bs_mtx)
|
|
#define BSTP_LOCK_ASSERT(_bs) mtx_assert(&(_bs)->bs_mtx, MA_OWNED)
|
|
|
|
extern const uint8_t bstp_etheraddr[];
|
|
|
|
extern void (*bstp_linkstate_p)(struct ifnet *ifp, int state);
|
|
|
|
void bstp_attach(struct bstp_state *, struct bstp_cb_ops *);
|
|
void bstp_detach(struct bstp_state *);
|
|
void bstp_init(struct bstp_state *);
|
|
void bstp_stop(struct bstp_state *);
|
|
int bstp_create(struct bstp_state *, struct bstp_port *, struct ifnet *);
|
|
int bstp_enable(struct bstp_port *);
|
|
void bstp_disable(struct bstp_port *);
|
|
void bstp_destroy(struct bstp_port *);
|
|
void bstp_linkstate(struct ifnet *, int);
|
|
int bstp_set_htime(struct bstp_state *, int);
|
|
int bstp_set_fdelay(struct bstp_state *, int);
|
|
int bstp_set_maxage(struct bstp_state *, int);
|
|
int bstp_set_holdcount(struct bstp_state *, int);
|
|
int bstp_set_protocol(struct bstp_state *, int);
|
|
int bstp_set_priority(struct bstp_state *, int);
|
|
int bstp_set_port_priority(struct bstp_port *, int);
|
|
int bstp_set_path_cost(struct bstp_port *, uint32_t);
|
|
int bstp_set_edge(struct bstp_port *, int);
|
|
int bstp_set_autoedge(struct bstp_port *, int);
|
|
int bstp_set_ptp(struct bstp_port *, int);
|
|
int bstp_set_autoptp(struct bstp_port *, int);
|
|
void bstp_input(struct bstp_port *, struct ifnet *, struct mbuf *);
|
|
|
|
#endif /* _KERNEL */
|