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29dc7bc636
ip6_input.c, in6.h:
* Add netinet6-specific mbuf flag M_RTALERT_MLD, shadowing M_PROTO6.
* Always set this flag if HBH Router Alert option is present for MLD,
even when not forwarding.
icmp6.c:
* In icmp6_input(), spell m->m_pkthdr.rcvif as ifp to be consistent.
* Use scope ID for verifying input. Do not apply SSM filters here, no inpcb.
* Check for M_RTALERT_MLD when validating MLD traffic, as we can't see
IPv6 hop options outside of ip6_input().
in6_mcast.c:
* Use KAME scope/zone ID in in6_multi.
* Update net.inet6.ip6.mcast.filters implementation to use scope IDs
for comparisons.
* Fix scope ID treatment in multicast socket option processing.
Scope IDs passed in from userland will be ignored as other less
ambiguous APIs exist for specifying the link.
* Tighten userland input checks in IPv6 SSM delta and full-state ops.
* Source filter embedded scope IDs need to be revisited, for now
just clear them and ignore them on input.
* Adapt KAME behaviour of looking up the scope ID in the default zone
for multicast leaves, when the interface is ambiguous.
mld6.c:
* Tighten origin checks on MLD traffic as per RFC3810 Section 6.2:
* ip6_src MAY be the unspecified address for MLDv1 reports.
* ip6_src MAY have link-local address scope for MLDv1 reports,
MLDv1 queries, and MLDv2 queries.
* Perform address field validation *before* accepting queries.
* Use KAME scope/zone ID in query/report processing.
* Break const correctness for mld_v1_input_report(), mld_v1_input_query()
as we temporarily modify the input mbuf chain.
* Clear the scope ID before handoff to userland MLD daemon.
* Fix MLDv1 old querier present timer processing.
With the protocol defaults, hosts should revert to MLDv2 after 260s.
* Add net.inet6.mld.v1enable sysctl, default to on.
ifmcstat.c:
* Use sysctl by default; -K requests kvm(3) if so compiled.
mld.4:
* Connect man page to build.
Tested using PCS.
132 lines
4.0 KiB
Groff
132 lines
4.0 KiB
Groff
.\" $KAME: ifmcstat.8,v 1.6 2002/10/31 04:23:43 suz Exp $
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.\"
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.\" Copyright (c) 2007-2009 Bruce Simpson.
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.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the project nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 27, 2009
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.Dt IFMCSTAT 8
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.Os
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.Sh NAME
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.Nm ifmcstat
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.Nd dump multicast group management statistics per interface
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.Sh SYNOPSIS
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.Nm
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.Op Fl i Ar interface
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.Op Fl f Ar address-family
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.Op Fl v
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.Op Fl K
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.Op Fl M Ar core
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.Op Fl N Ar system
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.\"
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.Sh DESCRIPTION
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The
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.Nm
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command dumps multicast group information from the kernel.
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.Pp
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The following options are supported:
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.Bl -tag -width Fl
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.It Fl i Ar interface
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specifies the interface to be displayed.
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.Pp
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.It Fl f Ar address-family
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specifies the address family to be displayed;
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.Ar inet ,
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.Ar inet6
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and
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.Ar link
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are supported.
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.It Fl v
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specifies that link-layer memberships should be printed;
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they are suppressed by default.
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It may not be specified for
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.Fl f Ar link .
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Source lists for each group will also be printed.
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.Pp
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If specified twice, and
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.Xr kvm 3
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is in use, the control plane timers for each interface
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and the source list counters for each group
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will also be printed.
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.El
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.Pp
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The following options are only available if
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.Nm
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has been built with support for
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.Xr kvm 3 :
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.Bl -tag -width Fl
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.It Fl K
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attempts to use
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.Xr kvm 3
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to retrieve the multicast group information.
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.It Fl M Ar core
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extracts values associated with the name list from the specified core,
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instead of the default
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.Pa /dev/kmem .
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.It Fl N Ar system
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extracts the name list from the specified kernel instead of the
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default, which is the kernel image the system has booted from.
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.El
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.Sh IMPLEMENTATION NOTES
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.Nm
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will always print the embedded scope IDs of IPv6 multicast group
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memberships.
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This is because memberships are always scoped to an interface.
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.Pp
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When run with the
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.Fl v
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option,
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.Nm
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may print multicast MAC addresses twice if they are
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referenced by a layer 3 protocol.
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.Pp
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When run with
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.Xr kvm 3
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support,
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the names of all interfaces configured in the system will be
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printed in the first column of output, even if no multicast
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group memberships are present on those interfaces.
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The output may also be slightly different, as the kernel
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data structures are being traversed with minimal post-processing
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of the output.
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.Pp
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When built without
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.Xr kvm 3
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support, the information displayed by
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.Nm
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is more limited.
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This support is recommended for debugging purposes.
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It requires super-user privilege if used to inspect a running kernel.
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.Pp
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.Sh SEE ALSO
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.Xr getifaddrs 3 ,
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.Xr getifmaddrs 3 ,
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.Xr kvm 3 ,
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.Xr netstat 8
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