Author: hselasky Date: Fri Feb 1 09:06:40 2019 New Revision: 343648 URL: https://svnweb.freebsd.org/changeset/base/343648
Log: MFC r343393: Add debugging sysctl to disable incoming MLD v2 messages similar to the existing sysctl for MLD v1 messages. PR: 233535 Differential Revision: https://reviews.freebsd.org/D18887 Reviewed by: bz (net) Tested by: ae Sponsored by: Mellanox Technologies Modified: stable/12/sys/netinet6/mld6.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet6/mld6.c ============================================================================== --- stable/12/sys/netinet6/mld6.c Fri Feb 1 09:05:41 2019 (r343647) +++ stable/12/sys/netinet6/mld6.c Fri Feb 1 09:06:40 2019 (r343648) @@ -243,6 +243,10 @@ static int mld_v1enable = 1; SYSCTL_INT(_net_inet6_mld, OID_AUTO, v1enable, CTLFLAG_RWTUN, &mld_v1enable, 0, "Enable fallback to MLDv1"); +static int mld_v2enable = 1; +SYSCTL_INT(_net_inet6_mld, OID_AUTO, v2enable, CTLFLAG_RWTUN, + &mld_v2enable, 0, "Enable MLDv2"); + static int mld_use_allow = 1; SYSCTL_INT(_net_inet6_mld, OID_AUTO, use_allow, CTLFLAG_RWTUN, &mld_use_allow, 0, "Use ALLOW/BLOCK for RFC 4604 SSM joins/leaves"); @@ -816,7 +820,12 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6 char ip6tbuf[INET6_ADDRSTRLEN]; #endif - is_general_query = 0; + if (!mld_v2enable) { + CTR3(KTR_MLD, "ignore v2 query src %s on ifp %p(%s)", + ip6_sprintf(ip6tbuf, &ip6->ip6_src), + ifp, if_name(ifp)); + return (0); + } /* * RFC3810 Section 6.2: MLD queries must originate from @@ -828,6 +837,8 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6 ifp, if_name(ifp)); return (0); } + + is_general_query = 0; CTR2(KTR_MLD, "input v2 query on ifp %p(%s)", ifp, if_name(ifp)); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
