6d47816791
LOR of softc rmlock in iflladdr_event handlers. - Call if_delmulti_ifma() after LACP_UNLOCK(). This fixes another LOR. - Fix a panic in lacp_transit_expire(). - Fix a panic in lagg_input() upon shutting down a port.
289 lines
8.9 KiB
C
289 lines
8.9 KiB
C
/* $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $ */
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/*
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* Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#ifndef _NET_LAGG_H
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#define _NET_LAGG_H
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/*
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* Global definitions
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*/
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#define LAGG_MAX_PORTS 32 /* logically */
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#define LAGG_MAX_NAMESIZE 32 /* name of a protocol */
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#define LAGG_MAX_STACKING 4 /* maximum number of stacked laggs */
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/* Lagg flags */
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#define LAGG_F_HASHL2 0x00000001 /* hash layer 2 */
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#define LAGG_F_HASHL3 0x00000002 /* hash layer 3 */
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#define LAGG_F_HASHL4 0x00000004 /* hash layer 4 */
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#define LAGG_F_HASHMASK 0x00000007
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/* Port flags */
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#define LAGG_PORT_SLAVE 0x00000000 /* normal enslaved port */
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#define LAGG_PORT_MASTER 0x00000001 /* primary port */
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#define LAGG_PORT_STACK 0x00000002 /* stacked lagg port */
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#define LAGG_PORT_ACTIVE 0x00000004 /* port is active */
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#define LAGG_PORT_COLLECTING 0x00000008 /* port is receiving frames */
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#define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */
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#define LAGG_PORT_DISABLED 0x00000020 /* port is disabled */
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#define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \
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"\05DISTRIBUTING\06DISABLED"
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/* Supported lagg PROTOs */
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typedef enum {
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LAGG_PROTO_NONE = 0, /* no lagg protocol defined */
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LAGG_PROTO_ROUNDROBIN, /* simple round robin */
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LAGG_PROTO_FAILOVER, /* active failover */
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LAGG_PROTO_LOADBALANCE, /* loadbalance */
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LAGG_PROTO_LACP, /* 802.3ad lacp */
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LAGG_PROTO_ETHERCHANNEL,/* Cisco FEC */
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LAGG_PROTO_BROADCAST, /* broadcast */
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LAGG_PROTO_MAX,
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} lagg_proto;
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struct lagg_protos {
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const char *lpr_name;
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lagg_proto lpr_proto;
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};
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#define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER
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#define LAGG_PROTOS { \
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{ "failover", LAGG_PROTO_FAILOVER }, \
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{ "fec", LAGG_PROTO_ETHERCHANNEL }, \
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{ "lacp", LAGG_PROTO_LACP }, \
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{ "loadbalance", LAGG_PROTO_LOADBALANCE }, \
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{ "roundrobin", LAGG_PROTO_ROUNDROBIN }, \
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{ "broadcast", LAGG_PROTO_BROADCAST }, \
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{ "none", LAGG_PROTO_NONE }, \
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{ "default", LAGG_PROTO_DEFAULT } \
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}
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/*
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* lagg ioctls.
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*/
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/*
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* LACP current operational parameters structure.
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*/
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struct lacp_opreq {
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uint16_t actor_prio;
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uint8_t actor_mac[ETHER_ADDR_LEN];
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uint16_t actor_key;
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uint16_t actor_portprio;
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uint16_t actor_portno;
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uint8_t actor_state;
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uint16_t partner_prio;
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uint8_t partner_mac[ETHER_ADDR_LEN];
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uint16_t partner_key;
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uint16_t partner_portprio;
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uint16_t partner_portno;
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uint8_t partner_state;
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};
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/* lagg port settings */
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struct lagg_reqport {
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char rp_ifname[IFNAMSIZ]; /* name of the lagg */
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char rp_portname[IFNAMSIZ]; /* name of the port */
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u_int32_t rp_prio; /* port priority */
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u_int32_t rp_flags; /* port flags */
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union {
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struct lacp_opreq rpsc_lacp;
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} rp_psc;
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#define rp_lacpreq rp_psc.rpsc_lacp
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};
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#define SIOCGLAGGPORT _IOWR('i', 140, struct lagg_reqport)
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#define SIOCSLAGGPORT _IOW('i', 141, struct lagg_reqport)
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#define SIOCSLAGGDELPORT _IOW('i', 142, struct lagg_reqport)
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/* lagg, ports and options */
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struct lagg_reqall {
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char ra_ifname[IFNAMSIZ]; /* name of the lagg */
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u_int ra_proto; /* lagg protocol */
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size_t ra_size; /* size of buffer */
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struct lagg_reqport *ra_port; /* allocated buffer */
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int ra_ports; /* total port count */
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union {
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struct lacp_opreq rpsc_lacp;
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} ra_psc;
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#define ra_lacpreq ra_psc.rpsc_lacp
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};
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#define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall)
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#define SIOCSLAGG _IOW('i', 144, struct lagg_reqall)
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struct lagg_reqflags {
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char rf_ifname[IFNAMSIZ]; /* name of the lagg */
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uint32_t rf_flags; /* lagg protocol */
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};
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#define SIOCGLAGGFLAGS _IOWR('i', 145, struct lagg_reqflags)
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#define SIOCSLAGGHASH _IOW('i', 146, struct lagg_reqflags)
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struct lagg_reqopts {
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char ro_ifname[IFNAMSIZ]; /* name of the lagg */
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int ro_opts; /* Option bitmap */
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#define LAGG_OPT_NONE 0x00
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#define LAGG_OPT_USE_FLOWID 0x01 /* use M_FLOWID */
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/* Pseudo flags which are used in ro_opts but not stored into sc_opts. */
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#define LAGG_OPT_FLOWIDSHIFT 0x02 /* Set flowid */
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#define LAGG_OPT_FLOWIDSHIFT_MASK 0x1f /* flowid is uint32_t */
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#define LAGG_OPT_LACP_STRICT 0x10 /* LACP strict mode */
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#define LAGG_OPT_LACP_TXTEST 0x20 /* LACP debug: txtest */
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#define LAGG_OPT_LACP_RXTEST 0x40 /* LACP debug: rxtest */
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u_int ro_count; /* number of ports */
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u_int ro_active; /* active port count */
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u_int ro_flapping; /* number of flapping */
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int ro_flowid_shift; /* shift the flowid */
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};
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#define SIOCGLAGGOPTS _IOWR('i', 152, struct lagg_reqopts)
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#define SIOCSLAGGOPTS _IOW('i', 153, struct lagg_reqopts)
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#define LAGG_OPT_BITS "\020\001USE_FLOWID\005LACP_STRICT" \
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"\006LACP_TXTEST\007LACP_RXTEST"
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#ifdef _KERNEL
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/*
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* Internal kernel part
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*/
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#define LAGG_PORTACTIVE(_tp) ( \
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((_tp)->lp_ifp->if_link_state == LINK_STATE_UP) && \
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((_tp)->lp_ifp->if_flags & IFF_UP) \
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)
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struct lagg_ifreq {
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union {
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struct ifreq ifreq;
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struct {
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char ifr_name[IFNAMSIZ];
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struct sockaddr_storage ifr_ss;
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} ifreq_storage;
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} ifreq;
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};
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#define sc_ifflags sc_ifp->if_flags /* flags */
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#define sc_ifname sc_ifp->if_xname /* name */
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#define sc_capabilities sc_ifp->if_capabilities /* capabilities */
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#define IFCAP_LAGG_MASK 0xffff0000 /* private capabilities */
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#define IFCAP_LAGG_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */
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/* Private data used by the loadbalancing protocol */
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struct lagg_lb {
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u_int32_t lb_key;
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struct lagg_port *lb_ports[LAGG_MAX_PORTS];
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};
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struct lagg_mc {
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struct sockaddr_dl mc_addr;
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struct ifmultiaddr *mc_ifma;
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SLIST_ENTRY(lagg_mc) mc_entries;
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};
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/* List of interfaces to have the MAC address modified */
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struct lagg_llq {
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struct ifnet *llq_ifp;
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uint8_t llq_lladdr[ETHER_ADDR_LEN];
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uint8_t llq_primary;
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SLIST_ENTRY(lagg_llq) llq_entries;
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};
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struct lagg_counters {
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uint64_t val[IFCOUNTERS];
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};
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struct lagg_softc {
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struct ifnet *sc_ifp; /* virtual interface */
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struct rmlock sc_mtx;
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int sc_proto; /* lagg protocol */
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u_int sc_count; /* number of ports */
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u_int sc_active; /* active port count */
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u_int sc_flapping; /* number of flapping
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* events */
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struct lagg_port *sc_primary; /* primary port */
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struct ifmedia sc_media; /* media config */
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void *sc_psc; /* protocol data */
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uint32_t sc_seq; /* sequence counter */
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uint32_t sc_flags;
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SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */
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SLIST_ENTRY(lagg_softc) sc_entries;
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struct task sc_lladdr_task;
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SLIST_HEAD(__llqhd, lagg_llq) sc_llq_head; /* interfaces to program
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the lladdr on */
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eventhandler_tag vlan_attach;
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eventhandler_tag vlan_detach;
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struct callout sc_callout;
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u_int sc_opts;
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int flowid_shift; /* shift the flowid */
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struct lagg_counters detached_counters; /* detached ports sum */
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};
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struct lagg_port {
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struct ifnet *lp_ifp; /* physical interface */
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struct lagg_softc *lp_softc; /* parent lagg */
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uint8_t lp_lladdr[ETHER_ADDR_LEN];
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u_char lp_iftype; /* interface type */
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uint32_t lp_prio; /* port priority */
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uint32_t lp_flags; /* port flags */
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int lp_ifflags; /* saved ifp flags */
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void *lh_cookie; /* if state hook */
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void *lp_psc; /* protocol data */
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int lp_detaching; /* ifnet is detaching */
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SLIST_HEAD(__mclhd, lagg_mc) lp_mc_head; /* multicast addresses */
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/* Redirected callbacks */
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int (*lp_ioctl)(struct ifnet *, u_long, caddr_t);
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int (*lp_output)(struct ifnet *, struct mbuf *,
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const struct sockaddr *, struct route *);
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struct lagg_counters port_counters; /* ifp counters copy */
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SLIST_ENTRY(lagg_port) lp_entries;
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};
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#define LAGG_LOCK_INIT(_sc) rm_init(&(_sc)->sc_mtx, "if_lagg rmlock")
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#define LAGG_LOCK_DESTROY(_sc) rm_destroy(&(_sc)->sc_mtx)
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#define LAGG_RLOCK(_sc, _p) rm_rlock(&(_sc)->sc_mtx, (_p))
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#define LAGG_WLOCK(_sc) rm_wlock(&(_sc)->sc_mtx)
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#define LAGG_RUNLOCK(_sc, _p) rm_runlock(&(_sc)->sc_mtx, (_p))
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#define LAGG_WUNLOCK(_sc) rm_wunlock(&(_sc)->sc_mtx)
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#define LAGG_RLOCK_ASSERT(_sc) rm_assert(&(_sc)->sc_mtx, RA_RLOCKED)
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#define LAGG_WLOCK_ASSERT(_sc) rm_assert(&(_sc)->sc_mtx, RA_WLOCKED)
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extern struct mbuf *(*lagg_input_p)(struct ifnet *, struct mbuf *);
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extern void (*lagg_linkstate_p)(struct ifnet *, int );
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int lagg_enqueue(struct ifnet *, struct mbuf *);
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uint32_t lagg_hashmbuf(struct lagg_softc *, struct mbuf *, uint32_t);
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SYSCTL_DECL(_net_link_lagg);
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#endif /* _KERNEL */
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#endif /* _NET_LAGG_H */
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