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- Use the new bridgestp callback to once again flush our bridge routes when an

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interface is disabled.
- Log port changes to syslog, defaulting to off
This commit is contained in:
Andrew Thompson 2006-08-02 03:54:28 +00:00
parent fc5b6202ab
commit 73d480ae4c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160902
1 changed files with 38 additions and 2 deletions
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40
sys/net/if_bridge.c
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@ -97,6 +97,7 @@ __FBSDID("$FreeBSD$");
#include <sys/ctype.h> /* string functions */
#include <sys/kernel.h>
#include <sys/random.h>
#include <sys/syslog.h>
#include <sys/sysctl.h>
#include <vm/uma.h>
#include <sys/module.h>
@ -265,6 +266,7 @@ static int bridge_rtnode_insert(struct bridge_softc *,
struct bridge_rtnode *);
static void bridge_rtnode_destroy(struct bridge_softc *,
struct bridge_rtnode *);
static void bridge_state_change(struct ifnet *, int);
static struct bridge_iflist *bridge_lookup_member(struct bridge_softc *,
const char *name);
@ -319,12 +321,15 @@ static int pfil_onlyip = 1; /* only pass IP[46] packets when pfil is enabled */
static int pfil_bridge = 1; /* run pfil hooks on the bridge interface */
static int pfil_member = 1; /* run pfil hooks on the member interface */
static int pfil_ipfw = 0; /* layer2 filter with ipfw */
static int log_stp = 0; /* log STP state changes */
SYSCTL_INT(_net_link_bridge, OID_AUTO, pfil_onlyip, CTLFLAG_RW,
&pfil_onlyip, 0, "Only pass IP packets when pfil is enabled");
SYSCTL_INT(_net_link_bridge, OID_AUTO, pfil_bridge, CTLFLAG_RW,
&pfil_bridge, 0, "Packet filter on the bridge interface");
SYSCTL_INT(_net_link_bridge, OID_AUTO, pfil_member, CTLFLAG_RW,
&pfil_member, 0, "Packet filter on the member interface");
SYSCTL_INT(_net_link_bridge, OID_AUTO, log_stp, CTLFLAG_RW,
&log_stp, 0, "Log STP state changes");
struct bridge_control {
int (*bc_func)(struct bridge_softc *, void *);
@ -566,7 +571,7 @@ bridge_clone_create(struct if_clone *ifc, int unit, caddr_t params)
mtx_unlock(&bridge_list_mtx);
}
bstp_attach(&sc->sc_stp);
bstp_attach(&sc->sc_stp, bridge_state_change);
ether_ifattach(ifp, eaddr);
/* Now undo some of the damage... */
ifp->if_baudrate = 0;
@ -860,7 +865,7 @@ bridge_delete_member(struct bridge_softc *sc, struct bridge_iflist *bif,
bridge_rtdelete(sc, ifs, IFBF_FLUSHALL);
BRIDGE_UNLOCK(sc);
bstp_drain(&bif->bif_stp); /* prepare to free */
bstp_drain(&bif->bif_stp); /* prepare to free */
BRIDGE_LOCK(sc);
free(bif, M_DEVBUF);
}
@ -2714,6 +2719,37 @@ bridge_rtnode_destroy(struct bridge_softc *sc, struct bridge_rtnode *brt)
uma_zfree(bridge_rtnode_zone, brt);
}
/*
* bridge_state_change:
*
* Callback from the bridgestp code when a port changes states.
*/
static void
bridge_state_change(struct ifnet *ifp, int state)
{
struct bridge_softc *sc = ifp->if_bridge;
static const char *stpstates[] = {
"disabled",
"listening",
"learning",
"forwarding",
"blocking",
};
if (log_stp)
log(LOG_NOTICE, "%s: state changed to %s on %s\n",
sc->sc_ifp->if_xname, stpstates[state], ifp->if_xname);
/* if the port is blocking then remove any routes to it */
switch (state) {
case BSTP_IFSTATE_DISABLED:
case BSTP_IFSTATE_BLOCKING:
BRIDGE_LOCK(sc);
bridge_rtdelete(sc, ifp, IFBF_FLUSHDYN);
BRIDGE_UNLOCK(sc);
}
}
/*
* Send bridge packets through pfil if they are one of the types pfil can deal
* with, or if they are ARP or REVARP. (pfil will pass ARP and REVARP without