f9be038601
This is actually several different bugs: - The code is not designed to handle inpcb deletion after interface deletion - add reference for inpcb membership - The multicast address has to be removed from interface lists when the refcount goes to zero OR when the interface goes away - decouple list disconnect from refcount (v6 only for now) - ifmultiaddr can exist past being on interface lists - add flag for tracking whether or not it's enqueued - deferring freeing moptions makes the incpb cleanup code simpler but opens the door wider still to races - call inp_gcmoptions synchronously after dropping the the inpcb lock Fundamentally multicast needs a rewrite - but keep applying band-aids for now. Tested by: kp Reported by: novel, kp, lwhsu
867 lines
31 KiB
C
867 lines
31 KiB
C
/*-
|
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* SPDX-License-Identifier: BSD-3-Clause
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|
*
|
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* Copyright (C) 1995, 1996, 1997, and 1998 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
|
|
* modification, are permitted provided that the following conditions
|
|
* 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.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 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
|
|
* without specific prior written permission.
|
|
*
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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
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* 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
|
|
* 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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* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $
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*/
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/*-
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* Copyright (c) 1985, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
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|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* 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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* @(#)in_var.h 8.1 (Berkeley) 6/10/93
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* $FreeBSD$
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*/
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#ifndef _NETINET6_IN6_VAR_H_
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#define _NETINET6_IN6_VAR_H_
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#include <sys/tree.h>
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#include <sys/counter.h>
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#ifdef _KERNEL
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#include <sys/fnv_hash.h>
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#include <sys/libkern.h>
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#endif
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/*
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* Interface address, Internet version. One of these structures
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* is allocated for each interface with an Internet address.
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* The ifaddr structure contains the protocol-independent part
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* of the structure and is assumed to be first.
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*/
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|
|
|
/*
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* pltime/vltime are just for future reference (required to implements 2
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* hour rule for hosts). they should never be modified by nd6_timeout or
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* anywhere else.
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* userland -> kernel: accept pltime/vltime
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* kernel -> userland: throw up everything
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* in kernel: modify preferred/expire only
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*/
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struct in6_addrlifetime {
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time_t ia6t_expire; /* valid lifetime expiration time */
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time_t ia6t_preferred; /* preferred lifetime expiration time */
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u_int32_t ia6t_vltime; /* valid lifetime */
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u_int32_t ia6t_pltime; /* prefix lifetime */
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};
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|
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struct nd_ifinfo;
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struct scope6_id;
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struct lltable;
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struct mld_ifsoftc;
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struct in6_multi;
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struct in6_ifextra {
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counter_u64_t *in6_ifstat;
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counter_u64_t *icmp6_ifstat;
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struct nd_ifinfo *nd_ifinfo;
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struct scope6_id *scope6_id;
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struct lltable *lltable;
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struct mld_ifsoftc *mld_ifinfo;
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};
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|
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#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
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#ifdef _KERNEL
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SLIST_HEAD(in6_multi_head, in6_multi);
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MALLOC_DECLARE(M_IP6MADDR);
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struct in6_ifaddr {
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struct ifaddr ia_ifa; /* protocol-independent info */
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#define ia_ifp ia_ifa.ifa_ifp
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#define ia_flags ia_ifa.ifa_flags
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struct sockaddr_in6 ia_addr; /* interface address */
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|
struct sockaddr_in6 ia_net; /* network number of interface */
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struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
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|
struct sockaddr_in6 ia_prefixmask; /* prefix mask */
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u_int32_t ia_plen; /* prefix length */
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CK_STAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */
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int ia6_flags;
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|
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|
struct in6_addrlifetime ia6_lifetime;
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time_t ia6_createtime; /* the creation time of this address, which is
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* currently used for temporary addresses only.
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*/
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|
time_t ia6_updatetime;
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|
|
|
/* back pointer to the ND prefix (for autoconfigured addresses only) */
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struct nd_prefix *ia6_ndpr;
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|
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|
/* multicast addresses joined from the kernel */
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LIST_HEAD(, in6_multi_mship) ia6_memberships;
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/* entry in bucket of inet6 addresses */
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CK_LIST_ENTRY(in6_ifaddr) ia6_hash;
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};
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/* List of in6_ifaddr's. */
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CK_STAILQ_HEAD(in6_ifaddrhead, in6_ifaddr);
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CK_LIST_HEAD(in6_ifaddrlisthead, in6_ifaddr);
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#endif /* _KERNEL */
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|
|
|
/* control structure to manage address selection policy */
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|
struct in6_addrpolicy {
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|
struct sockaddr_in6 addr; /* prefix address */
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|
struct sockaddr_in6 addrmask; /* prefix mask */
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int preced; /* precedence */
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|
int label; /* matching label */
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|
u_quad_t use; /* statistics */
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|
};
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|
|
|
/*
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* IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
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|
*/
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struct in6_ifstat {
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|
uint64_t ifs6_in_receive; /* # of total input datagram */
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uint64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
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uint64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
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|
uint64_t ifs6_in_noroute; /* # of datagrams with no route */
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|
uint64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
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|
uint64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
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|
/* NOTE: increment on final dst if */
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|
uint64_t ifs6_in_truncated; /* # of truncated datagrams */
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|
uint64_t ifs6_in_discard; /* # of discarded datagrams */
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|
/* NOTE: fragment timeout is not here */
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|
uint64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
|
|
/* NOTE: increment on final dst if */
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|
uint64_t ifs6_out_forward; /* # of datagrams forwarded */
|
|
/* NOTE: increment on outgoing if */
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|
uint64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
|
|
/* NOTE: does not include forwrads */
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|
uint64_t ifs6_out_discard; /* # of discarded datagrams */
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|
uint64_t ifs6_out_fragok; /* # of datagrams fragmented */
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|
uint64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
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|
uint64_t ifs6_out_fragcreat; /* # of fragment datagrams */
|
|
/* NOTE: this is # after fragment */
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|
uint64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
|
|
/* NOTE: increment on final dst if */
|
|
uint64_t ifs6_reass_ok; /* # of reassembled packets */
|
|
/* NOTE: this is # after reass */
|
|
/* NOTE: increment on final dst if */
|
|
uint64_t ifs6_reass_fail; /* # of reass failures */
|
|
/* NOTE: may not be packet count */
|
|
/* NOTE: increment on final dst if */
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|
uint64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
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|
uint64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
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|
};
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|
|
|
/*
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* ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
|
|
* XXX: I'm not sure if this file is the right place for this structure...
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|
*/
|
|
struct icmp6_ifstat {
|
|
/*
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|
* Input statistics
|
|
*/
|
|
/* ipv6IfIcmpInMsgs, total # of input messages */
|
|
uint64_t ifs6_in_msg;
|
|
/* ipv6IfIcmpInErrors, # of input error messages */
|
|
uint64_t ifs6_in_error;
|
|
/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
|
|
uint64_t ifs6_in_dstunreach;
|
|
/* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
|
|
uint64_t ifs6_in_adminprohib;
|
|
/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
|
|
uint64_t ifs6_in_timeexceed;
|
|
/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
|
|
uint64_t ifs6_in_paramprob;
|
|
/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
|
|
uint64_t ifs6_in_pkttoobig;
|
|
/* ipv6IfIcmpInEchos, # of input echo requests */
|
|
uint64_t ifs6_in_echo;
|
|
/* ipv6IfIcmpInEchoReplies, # of input echo replies */
|
|
uint64_t ifs6_in_echoreply;
|
|
/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
|
|
uint64_t ifs6_in_routersolicit;
|
|
/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
|
|
uint64_t ifs6_in_routeradvert;
|
|
/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
|
|
uint64_t ifs6_in_neighborsolicit;
|
|
/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
|
|
uint64_t ifs6_in_neighboradvert;
|
|
/* ipv6IfIcmpInRedirects, # of input redirects */
|
|
uint64_t ifs6_in_redirect;
|
|
/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
|
|
uint64_t ifs6_in_mldquery;
|
|
/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
|
|
uint64_t ifs6_in_mldreport;
|
|
/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
|
|
uint64_t ifs6_in_mlddone;
|
|
|
|
/*
|
|
* Output statistics. We should solve unresolved routing problem...
|
|
*/
|
|
/* ipv6IfIcmpOutMsgs, total # of output messages */
|
|
uint64_t ifs6_out_msg;
|
|
/* ipv6IfIcmpOutErrors, # of output error messages */
|
|
uint64_t ifs6_out_error;
|
|
/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
|
|
uint64_t ifs6_out_dstunreach;
|
|
/* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
|
|
uint64_t ifs6_out_adminprohib;
|
|
/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
|
|
uint64_t ifs6_out_timeexceed;
|
|
/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
|
|
uint64_t ifs6_out_paramprob;
|
|
/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
|
|
uint64_t ifs6_out_pkttoobig;
|
|
/* ipv6IfIcmpOutEchos, # of output echo requests */
|
|
uint64_t ifs6_out_echo;
|
|
/* ipv6IfIcmpOutEchoReplies, # of output echo replies */
|
|
uint64_t ifs6_out_echoreply;
|
|
/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
|
|
uint64_t ifs6_out_routersolicit;
|
|
/* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
|
|
uint64_t ifs6_out_routeradvert;
|
|
/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
|
|
uint64_t ifs6_out_neighborsolicit;
|
|
/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
|
|
uint64_t ifs6_out_neighboradvert;
|
|
/* ipv6IfIcmpOutRedirects, # of output redirects */
|
|
uint64_t ifs6_out_redirect;
|
|
/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
|
|
uint64_t ifs6_out_mldquery;
|
|
/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
|
|
uint64_t ifs6_out_mldreport;
|
|
/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
|
|
uint64_t ifs6_out_mlddone;
|
|
};
|
|
|
|
struct in6_ifreq {
|
|
char ifr_name[IFNAMSIZ];
|
|
union {
|
|
struct sockaddr_in6 ifru_addr;
|
|
struct sockaddr_in6 ifru_dstaddr;
|
|
int ifru_flags;
|
|
int ifru_flags6;
|
|
int ifru_metric;
|
|
caddr_t ifru_data;
|
|
struct in6_addrlifetime ifru_lifetime;
|
|
struct in6_ifstat ifru_stat;
|
|
struct icmp6_ifstat ifru_icmp6stat;
|
|
u_int32_t ifru_scope_id[16];
|
|
} ifr_ifru;
|
|
};
|
|
|
|
struct in6_aliasreq {
|
|
char ifra_name[IFNAMSIZ];
|
|
struct sockaddr_in6 ifra_addr;
|
|
struct sockaddr_in6 ifra_dstaddr;
|
|
struct sockaddr_in6 ifra_prefixmask;
|
|
int ifra_flags;
|
|
struct in6_addrlifetime ifra_lifetime;
|
|
int ifra_vhid;
|
|
};
|
|
|
|
/* pre-10.x compat */
|
|
struct oin6_aliasreq {
|
|
char ifra_name[IFNAMSIZ];
|
|
struct sockaddr_in6 ifra_addr;
|
|
struct sockaddr_in6 ifra_dstaddr;
|
|
struct sockaddr_in6 ifra_prefixmask;
|
|
int ifra_flags;
|
|
struct in6_addrlifetime ifra_lifetime;
|
|
};
|
|
|
|
/* prefix type macro */
|
|
#define IN6_PREFIX_ND 1
|
|
#define IN6_PREFIX_RR 2
|
|
|
|
/*
|
|
* prefix related flags passed between kernel(NDP related part) and
|
|
* user land command(ifconfig) and daemon(rtadvd).
|
|
*/
|
|
struct in6_prflags {
|
|
struct prf_ra {
|
|
u_char onlink : 1;
|
|
u_char autonomous : 1;
|
|
u_char reserved : 6;
|
|
} prf_ra;
|
|
u_char prf_reserved1;
|
|
u_short prf_reserved2;
|
|
/* want to put this on 4byte offset */
|
|
struct prf_rr {
|
|
u_char decrvalid : 1;
|
|
u_char decrprefd : 1;
|
|
u_char reserved : 6;
|
|
} prf_rr;
|
|
u_char prf_reserved3;
|
|
u_short prf_reserved4;
|
|
};
|
|
|
|
struct in6_prefixreq {
|
|
char ipr_name[IFNAMSIZ];
|
|
u_char ipr_origin;
|
|
u_char ipr_plen;
|
|
u_int32_t ipr_vltime;
|
|
u_int32_t ipr_pltime;
|
|
struct in6_prflags ipr_flags;
|
|
struct sockaddr_in6 ipr_prefix;
|
|
};
|
|
|
|
#define PR_ORIG_RA 0
|
|
#define PR_ORIG_RR 1
|
|
#define PR_ORIG_STATIC 2
|
|
#define PR_ORIG_KERNEL 3
|
|
|
|
#define ipr_raf_onlink ipr_flags.prf_ra.onlink
|
|
#define ipr_raf_auto ipr_flags.prf_ra.autonomous
|
|
|
|
#define ipr_statef_onlink ipr_flags.prf_state.onlink
|
|
|
|
#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
|
|
#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
|
|
|
|
struct in6_rrenumreq {
|
|
char irr_name[IFNAMSIZ];
|
|
u_char irr_origin;
|
|
u_char irr_m_len; /* match len for matchprefix */
|
|
u_char irr_m_minlen; /* minlen for matching prefix */
|
|
u_char irr_m_maxlen; /* maxlen for matching prefix */
|
|
u_char irr_u_uselen; /* uselen for adding prefix */
|
|
u_char irr_u_keeplen; /* keeplen from matching prefix */
|
|
struct irr_raflagmask {
|
|
u_char onlink : 1;
|
|
u_char autonomous : 1;
|
|
u_char reserved : 6;
|
|
} irr_raflagmask;
|
|
u_int32_t irr_vltime;
|
|
u_int32_t irr_pltime;
|
|
struct in6_prflags irr_flags;
|
|
struct sockaddr_in6 irr_matchprefix;
|
|
struct sockaddr_in6 irr_useprefix;
|
|
};
|
|
|
|
#define irr_raf_mask_onlink irr_raflagmask.onlink
|
|
#define irr_raf_mask_auto irr_raflagmask.autonomous
|
|
#define irr_raf_mask_reserved irr_raflagmask.reserved
|
|
|
|
#define irr_raf_onlink irr_flags.prf_ra.onlink
|
|
#define irr_raf_auto irr_flags.prf_ra.autonomous
|
|
|
|
#define irr_statef_onlink irr_flags.prf_state.onlink
|
|
|
|
#define irr_rrf irr_flags.prf_rr
|
|
#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
|
|
#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
|
|
|
|
/*
|
|
* Given a pointer to an in6_ifaddr (ifaddr),
|
|
* return a pointer to the addr as a sockaddr_in6
|
|
*/
|
|
#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
|
|
#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
|
|
#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
|
|
#define IA6_SIN6(ia) (&((ia)->ia_addr))
|
|
#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
|
|
#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
|
|
#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
|
|
|
|
#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
|
|
|
|
#ifdef _KERNEL
|
|
#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
|
|
(((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
|
|
(((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
|
|
(((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
|
|
(((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
|
|
#define IN6_MASK_ADDR(a, m) do { \
|
|
(a)->s6_addr32[0] &= (m)->s6_addr32[0]; \
|
|
(a)->s6_addr32[1] &= (m)->s6_addr32[1]; \
|
|
(a)->s6_addr32[2] &= (m)->s6_addr32[2]; \
|
|
(a)->s6_addr32[3] &= (m)->s6_addr32[3]; \
|
|
} while (0)
|
|
#endif
|
|
|
|
#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
|
|
#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* SIOCSxxx ioctls should be unused (see comments in in6.c), but
|
|
* we do not shift numbers for binary compatibility.
|
|
*/
|
|
#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
|
|
#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
|
|
#endif
|
|
|
|
#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
|
|
#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
|
|
|
|
#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
|
|
#define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq)
|
|
#define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq)
|
|
|
|
#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
|
|
#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
|
|
#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
|
|
|
|
#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
|
|
|
|
#ifdef _KERNEL
|
|
#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
|
|
#endif
|
|
#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
|
|
#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
|
|
#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
|
|
#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
|
|
#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
|
|
#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
|
|
|
|
#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
|
|
#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
|
|
#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
|
|
|
|
#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
|
|
#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
|
|
|
|
#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
|
|
|
|
#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
|
|
#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
|
|
#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
|
|
|
|
#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
|
|
#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
|
|
#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
|
|
#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
|
|
#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
|
|
struct in6_rrenumreq) /* change */
|
|
#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
|
|
struct in6_rrenumreq) /* set global */
|
|
|
|
#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
|
|
struct sioc_sg_req6) /* get s,g pkt cnt */
|
|
#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
|
|
struct sioc_mif_req6) /* get pkt cnt per if */
|
|
|
|
#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
|
|
#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
|
|
|
|
#define IN6_IFF_ANYCAST 0x01 /* anycast address */
|
|
#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
|
|
#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
|
|
#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
|
|
#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
|
|
#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
|
|
* (obsolete)
|
|
*/
|
|
#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
|
|
#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
|
|
#define IN6_IFF_PREFER_SOURCE 0x0100 /* preferred address for SAS */
|
|
|
|
/* do not input/output */
|
|
#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
|
|
|
|
#ifdef _KERNEL
|
|
#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
|
|
#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
|
|
#endif
|
|
|
|
#ifdef _KERNEL
|
|
VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead);
|
|
VNET_DECLARE(struct in6_ifaddrlisthead *, in6_ifaddrhashtbl);
|
|
VNET_DECLARE(u_long, in6_ifaddrhmask);
|
|
#define V_in6_ifaddrhead VNET(in6_ifaddrhead)
|
|
#define V_in6_ifaddrhashtbl VNET(in6_ifaddrhashtbl)
|
|
#define V_in6_ifaddrhmask VNET(in6_ifaddrhmask)
|
|
|
|
#define IN6ADDR_NHASH_LOG2 8
|
|
#define IN6ADDR_NHASH (1 << IN6ADDR_NHASH_LOG2)
|
|
#define IN6ADDR_HASHVAL(x) (in6_addrhash(x))
|
|
#define IN6ADDR_HASH(x) \
|
|
(&V_in6_ifaddrhashtbl[IN6ADDR_HASHVAL(x) & V_in6_ifaddrhmask])
|
|
|
|
static __inline uint32_t
|
|
in6_addrhash(const struct in6_addr *in6)
|
|
{
|
|
uint32_t x;
|
|
|
|
x = in6->s6_addr32[0] ^ in6->s6_addr32[1] ^ in6->s6_addr32[2] ^
|
|
in6->s6_addr32[3];
|
|
return (fnv_32_buf(&x, sizeof(x), FNV1_32_INIT));
|
|
}
|
|
|
|
extern struct rmlock in6_ifaddr_lock;
|
|
#define IN6_IFADDR_LOCK_ASSERT() rm_assert(&in6_ifaddr_lock, RA_LOCKED)
|
|
#define IN6_IFADDR_RLOCK(t) rm_rlock(&in6_ifaddr_lock, (t))
|
|
#define IN6_IFADDR_RLOCK_ASSERT() rm_assert(&in6_ifaddr_lock, RA_RLOCKED)
|
|
#define IN6_IFADDR_RUNLOCK(t) rm_runlock(&in6_ifaddr_lock, (t))
|
|
#define IN6_IFADDR_WLOCK() rm_wlock(&in6_ifaddr_lock)
|
|
#define IN6_IFADDR_WLOCK_ASSERT() rm_assert(&in6_ifaddr_lock, RA_WLOCKED)
|
|
#define IN6_IFADDR_WUNLOCK() rm_wunlock(&in6_ifaddr_lock)
|
|
|
|
#define in6_ifstat_inc(ifp, tag) \
|
|
do { \
|
|
if (ifp) \
|
|
counter_u64_add(((struct in6_ifextra *) \
|
|
((ifp)->if_afdata[AF_INET6]))->in6_ifstat[ \
|
|
offsetof(struct in6_ifstat, tag) / sizeof(uint64_t)], 1);\
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
extern u_char inet6ctlerrmap[];
|
|
VNET_DECLARE(unsigned long, in6_maxmtu);
|
|
#define V_in6_maxmtu VNET(in6_maxmtu)
|
|
#endif /* _KERNEL */
|
|
|
|
/*
|
|
* IPv6 multicast MLD-layer source entry.
|
|
*/
|
|
struct ip6_msource {
|
|
RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
|
|
struct in6_addr im6s_addr;
|
|
struct im6s_st {
|
|
uint16_t ex; /* # of exclusive members */
|
|
uint16_t in; /* # of inclusive members */
|
|
} im6s_st[2]; /* state at t0, t1 */
|
|
uint8_t im6s_stp; /* pending query */
|
|
};
|
|
RB_HEAD(ip6_msource_tree, ip6_msource);
|
|
|
|
/*
|
|
* IPv6 multicast PCB-layer source entry.
|
|
*
|
|
* NOTE: overlapping use of struct ip6_msource fields at start.
|
|
*/
|
|
struct in6_msource {
|
|
RB_ENTRY(ip6_msource) im6s_link; /* Common field */
|
|
struct in6_addr im6s_addr; /* Common field */
|
|
uint8_t im6sl_st[2]; /* state before/at commit */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* IPv6 source tree comparison function.
|
|
*
|
|
* An ordered predicate is necessary; bcmp() is not documented to return
|
|
* an indication of order, memcmp() is, and is an ISO C99 requirement.
|
|
*/
|
|
static __inline int
|
|
ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b)
|
|
{
|
|
|
|
return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr)));
|
|
}
|
|
RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp);
|
|
|
|
/*
|
|
* IPv6 multicast PCB-layer group filter descriptor.
|
|
*/
|
|
struct in6_mfilter {
|
|
struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
|
|
u_long im6f_nsrc; /* # of source entries */
|
|
uint8_t im6f_st[2]; /* state before/at commit */
|
|
};
|
|
|
|
/*
|
|
* Legacy KAME IPv6 multicast membership descriptor.
|
|
*/
|
|
struct in6_multi_mship {
|
|
struct in6_multi *i6mm_maddr;
|
|
LIST_ENTRY(in6_multi_mship) i6mm_chain;
|
|
};
|
|
|
|
/*
|
|
* IPv6 group descriptor.
|
|
*
|
|
* For every entry on an ifnet's if_multiaddrs list which represents
|
|
* an IP multicast group, there is one of these structures.
|
|
*
|
|
* If any source filters are present, then a node will exist in the RB-tree
|
|
* to permit fast lookup by source whenever an operation takes place.
|
|
* This permits pre-order traversal when we issue reports.
|
|
* Source filter trees are kept separately from the socket layer to
|
|
* greatly simplify locking.
|
|
*
|
|
* When MLDv2 is active, in6m_timer is the response to group query timer.
|
|
* The state-change timer in6m_sctimer is separate; whenever state changes
|
|
* for the group the state change record is generated and transmitted,
|
|
* and kept if retransmissions are necessary.
|
|
*
|
|
* FUTURE: in6m_link is now only used when groups are being purged
|
|
* on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but
|
|
* because it is at the very start of the struct, we can't do this
|
|
* w/o breaking the ABI for ifmcstat.
|
|
*/
|
|
struct in6_multi {
|
|
struct in6_addr in6m_addr; /* IPv6 multicast address */
|
|
struct ifnet *in6m_ifp; /* back pointer to ifnet */
|
|
struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
|
|
u_int in6m_refcount; /* reference count */
|
|
u_int in6m_state; /* state of the membership */
|
|
u_int in6m_timer; /* MLD6 listener report timer */
|
|
|
|
/* New fields for MLDv2 follow. */
|
|
struct mld_ifsoftc *in6m_mli; /* MLD info */
|
|
SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
|
|
struct ip6_msource_tree in6m_srcs; /* tree of sources */
|
|
u_long in6m_nsrc; /* # of tree entries */
|
|
|
|
struct mbufq in6m_scq; /* queue of pending
|
|
* state-change packets */
|
|
struct timeval in6m_lastgsrtv; /* last G-S-R query */
|
|
uint16_t in6m_sctimer; /* state-change timer */
|
|
uint16_t in6m_scrv; /* state-change rexmit count */
|
|
|
|
/*
|
|
* SSM state counters which track state at T0 (the time the last
|
|
* state-change report's RV timer went to zero) and T1
|
|
* (time of pending report, i.e. now).
|
|
* Used for computing MLDv2 state-change reports. Several refcounts
|
|
* are maintained here to optimize for common use-cases.
|
|
*/
|
|
struct in6m_st {
|
|
uint16_t iss_fmode; /* MLD filter mode */
|
|
uint16_t iss_asm; /* # of ASM listeners */
|
|
uint16_t iss_ex; /* # of exclusive members */
|
|
uint16_t iss_in; /* # of inclusive members */
|
|
uint16_t iss_rec; /* # of recorded sources */
|
|
} in6m_st[2]; /* state at t0, t1 */
|
|
};
|
|
|
|
void in6m_disconnect(struct in6_multi *inm);
|
|
extern int ifma6_restart;
|
|
/*
|
|
* Helper function to derive the filter mode on a source entry
|
|
* from its internal counters. Predicates are:
|
|
* A source is only excluded if all listeners exclude it.
|
|
* A source is only included if no listeners exclude it,
|
|
* and at least one listener includes it.
|
|
* May be used by ifmcstat(8).
|
|
*/
|
|
static __inline uint8_t
|
|
im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims,
|
|
uint8_t t)
|
|
{
|
|
|
|
t = !!t;
|
|
if (inm->in6m_st[t].iss_ex > 0 &&
|
|
inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex)
|
|
return (MCAST_EXCLUDE);
|
|
else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0)
|
|
return (MCAST_INCLUDE);
|
|
return (MCAST_UNDEFINED);
|
|
}
|
|
|
|
/*
|
|
* Lock macros for IPv6 layer multicast address lists. IPv6 lock goes
|
|
* before link layer multicast locks in the lock order. In most cases,
|
|
* consumers of IN_*_MULTI() macros should acquire the locks before
|
|
* calling them; users of the in_{add,del}multi() functions should not.
|
|
*/
|
|
extern struct mtx in6_multi_list_mtx;
|
|
extern struct sx in6_multi_sx;
|
|
|
|
#define IN6_MULTI_LIST_LOCK() mtx_lock(&in6_multi_list_mtx)
|
|
#define IN6_MULTI_LIST_UNLOCK() mtx_unlock(&in6_multi_list_mtx)
|
|
#define IN6_MULTI_LIST_LOCK_ASSERT() mtx_assert(&in6_multi_list_mtx, MA_OWNED)
|
|
#define IN6_MULTI_LIST_UNLOCK_ASSERT() mtx_assert(&in6_multi_list_mtx, MA_NOTOWNED)
|
|
|
|
#define IN6_MULTI_LOCK() sx_xlock(&in6_multi_sx)
|
|
#define IN6_MULTI_UNLOCK() sx_xunlock(&in6_multi_sx)
|
|
#define IN6_MULTI_LOCK_ASSERT() sx_assert(&in6_multi_sx, SA_XLOCKED)
|
|
#define IN6_MULTI_UNLOCK_ASSERT() sx_assert(&in6_multi_sx, SA_XUNLOCKED)
|
|
|
|
|
|
/*
|
|
* Look up an in6_multi record for an IPv6 multicast address
|
|
* on the interface ifp.
|
|
* If no record found, return NULL.
|
|
*
|
|
* SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
|
|
*/
|
|
static __inline struct in6_multi *
|
|
in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr)
|
|
{
|
|
struct ifmultiaddr *ifma;
|
|
struct in6_multi *inm;
|
|
|
|
inm = NULL;
|
|
CK_STAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
|
|
if (ifma->ifma_addr->sa_family == AF_INET6) {
|
|
inm = (struct in6_multi *)ifma->ifma_protospec;
|
|
if (inm == NULL)
|
|
continue;
|
|
if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr))
|
|
break;
|
|
inm = NULL;
|
|
}
|
|
}
|
|
return (inm);
|
|
}
|
|
|
|
/*
|
|
* Wrapper for in6m_lookup_locked().
|
|
*
|
|
* SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held.
|
|
*/
|
|
static __inline struct in6_multi *
|
|
in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr)
|
|
{
|
|
struct in6_multi *inm;
|
|
|
|
IN6_MULTI_LIST_LOCK();
|
|
IF_ADDR_RLOCK(ifp);
|
|
inm = in6m_lookup_locked(ifp, mcaddr);
|
|
IF_ADDR_RUNLOCK(ifp);
|
|
IN6_MULTI_LIST_UNLOCK();
|
|
|
|
return (inm);
|
|
}
|
|
|
|
/* Acquire an in6_multi record. */
|
|
static __inline void
|
|
in6m_acquire_locked(struct in6_multi *inm)
|
|
{
|
|
|
|
IN6_MULTI_LIST_LOCK_ASSERT();
|
|
++inm->in6m_refcount;
|
|
}
|
|
|
|
static __inline void
|
|
in6m_acquire(struct in6_multi *inm)
|
|
{
|
|
IN6_MULTI_LIST_LOCK();
|
|
in6m_acquire_locked(inm);
|
|
IN6_MULTI_LIST_UNLOCK();
|
|
}
|
|
|
|
static __inline void
|
|
in6m_rele_locked(struct in6_multi_head *inmh, struct in6_multi *inm)
|
|
{
|
|
KASSERT(inm->in6m_refcount > 0, ("refcount == %d inm: %p", inm->in6m_refcount, inm));
|
|
IN6_MULTI_LIST_LOCK_ASSERT();
|
|
|
|
if (--inm->in6m_refcount == 0) {
|
|
MPASS(inm->in6m_ifp == NULL);
|
|
inm->in6m_ifma->ifma_protospec = NULL;
|
|
MPASS(inm->in6m_ifma->ifma_llifma == NULL);
|
|
SLIST_INSERT_HEAD(inmh, inm, in6m_nrele);
|
|
}
|
|
}
|
|
|
|
struct ip6_moptions;
|
|
struct sockopt;
|
|
struct inpcbinfo;
|
|
|
|
/* Multicast KPIs. */
|
|
int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
|
|
const struct sockaddr *, const struct sockaddr *);
|
|
int in6_joingroup(struct ifnet *, const struct in6_addr *,
|
|
struct in6_mfilter *, struct in6_multi **, int);
|
|
int in6_joingroup_locked(struct ifnet *, const struct in6_addr *,
|
|
struct in6_mfilter *, struct in6_multi **, int);
|
|
int in6_leavegroup(struct in6_multi *, struct in6_mfilter *);
|
|
int in6_leavegroup_locked(struct in6_multi *, struct in6_mfilter *);
|
|
void in6m_clear_recorded(struct in6_multi *);
|
|
void in6m_commit(struct in6_multi *);
|
|
void in6m_print(const struct in6_multi *);
|
|
int in6m_record_source(struct in6_multi *, const struct in6_addr *);
|
|
void in6m_release_deferred(struct in6_multi *);
|
|
void in6m_release_list_deferred(struct in6_multi_head *);
|
|
void ip6_freemoptions(struct ip6_moptions *);
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int ip6_getmoptions(struct inpcb *, struct sockopt *);
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int ip6_setmoptions(struct inpcb *, struct sockopt *);
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/* flags to in6_update_ifa */
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#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
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int in6_mask2len(struct in6_addr *, u_char *);
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int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
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struct thread *);
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int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
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struct in6_ifaddr *, int);
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void in6_prepare_ifra(struct in6_aliasreq *, const struct in6_addr *,
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const struct in6_addr *);
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void in6_purgeaddr(struct ifaddr *);
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int in6if_do_dad(struct ifnet *);
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void in6_savemkludge(struct in6_ifaddr *);
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void *in6_domifattach(struct ifnet *);
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void in6_domifdetach(struct ifnet *, void *);
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int in6_domifmtu(struct ifnet *);
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void in6_setmaxmtu(void);
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int in6_if2idlen(struct ifnet *);
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struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
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struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, const struct in6_addr *);
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struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
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struct in6_ifaddr *in6ifa_llaonifp(struct ifnet *);
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int in6_addr2zoneid(struct ifnet *, struct in6_addr *, u_int32_t *);
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int in6_matchlen(struct in6_addr *, struct in6_addr *);
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int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
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void in6_prefixlen2mask(struct in6_addr *, int);
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int in6_prefix_ioctl(struct socket *, u_long, caddr_t,
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struct ifnet *);
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int in6_prefix_add_ifid(int, struct in6_ifaddr *);
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void in6_prefix_remove_ifid(int, struct in6_ifaddr *);
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void in6_purgeprefix(struct ifnet *);
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int in6_is_addr_deprecated(struct sockaddr_in6 *);
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int in6_src_ioctl(u_long, caddr_t);
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void in6_newaddrmsg(struct in6_ifaddr *, int);
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/*
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* Extended API for IPv6 FIB support.
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*/
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struct mbuf *ip6_tryforward(struct mbuf *);
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void in6_rtredirect(struct sockaddr *, struct sockaddr *, struct sockaddr *,
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int, struct sockaddr *, u_int);
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int in6_rtrequest(int, struct sockaddr *, struct sockaddr *,
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struct sockaddr *, int, struct rtentry **, u_int);
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void in6_rtalloc(struct route_in6 *, u_int);
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void in6_rtalloc_ign(struct route_in6 *, u_long, u_int);
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struct rtentry *in6_rtalloc1(struct sockaddr *, int, u_long, u_int);
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#endif /* _KERNEL */
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#endif /* _NETINET6_IN6_VAR_H_ */
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