diff options
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/ip_carp.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/sys/netinet/ip_carp.c b/sys/netinet/ip_carp.c index 4cfef0fe8313..07dab7c9a91b 100644 --- a/sys/netinet/ip_carp.c +++ b/sys/netinet/ip_carp.c @@ -210,11 +210,13 @@ static VNET_DEFINE(int, carp_senderr_adj) = CARP_MAXSKEW; static VNET_DEFINE(int, carp_ifdown_adj) = CARP_MAXSKEW; #define V_carp_ifdown_adj VNET(carp_ifdown_adj) +static int carp_allow_sysctl(SYSCTL_HANDLER_ARGS); static int carp_demote_adj_sysctl(SYSCTL_HANDLER_ARGS); SYSCTL_NODE(_net_inet, IPPROTO_CARP, carp, CTLFLAG_RW, 0, "CARP"); -SYSCTL_INT(_net_inet_carp, OID_AUTO, allow, CTLFLAG_VNET | CTLFLAG_RW, - &VNET_NAME(carp_allow), 0, "Accept incoming CARP packets"); +SYSCTL_PROC(_net_inet_carp, OID_AUTO, allow, + CTLFLAG_VNET | CTLTYPE_INT | CTLFLAG_RW, 0, 0, carp_allow_sysctl, "I", + "Accept incoming CARP packets"); SYSCTL_INT(_net_inet_carp, OID_AUTO, preempt, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(carp_preempt), 0, "High-priority backup preemption mode"); SYSCTL_INT(_net_inet_carp, OID_AUTO, log, CTLFLAG_VNET | CTLFLAG_RW, @@ -1291,7 +1293,8 @@ carp_setrun(struct carp_softc *sc, sa_family_t af) if ((sc->sc_carpdev->if_flags & IFF_UP) == 0 || sc->sc_carpdev->if_link_state != LINK_STATE_UP || - (sc->sc_naddrs == 0 && sc->sc_naddrs6 == 0)) + (sc->sc_naddrs == 0 && sc->sc_naddrs6 == 0) || + !V_carp_allow) return; switch (sc->sc_state) { @@ -2041,7 +2044,8 @@ carp_sc_state(struct carp_softc *sc) CARP_LOCK_ASSERT(sc); if (sc->sc_carpdev->if_link_state != LINK_STATE_UP || - !(sc->sc_carpdev->if_flags & IFF_UP)) { + !(sc->sc_carpdev->if_flags & IFF_UP) || + !V_carp_allow) { callout_stop(&sc->sc_ad_tmo); #ifdef INET callout_stop(&sc->sc_md_tmo); @@ -2072,6 +2076,33 @@ carp_demote_adj(int adj, char *reason) } static int +carp_allow_sysctl(SYSCTL_HANDLER_ARGS) +{ + int new, error; + struct carp_softc *sc; + + new = V_carp_allow; + error = sysctl_handle_int(oidp, &new, 0, req); + if (error || !req->newptr) + return (error); + + if (V_carp_allow != new) { + V_carp_allow = new; + + mtx_lock(&carp_mtx); + LIST_FOREACH(sc, &carp_list, sc_next) { + CARP_LOCK(sc); + if (curvnet == sc->sc_carpdev->if_vnet) + carp_sc_state(sc); + CARP_UNLOCK(sc); + } + mtx_unlock(&carp_mtx); + } + + return (0); +} + +static int carp_demote_adj_sysctl(SYSCTL_HANDLER_ARGS) { int new, error; |