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darling-xnu/bsd/netinet6/in6_var.h
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/*
* Copyright (c) 2000-2020 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* 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 project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1985, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* 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
* SUCH DAMAGE.
*
* @(#)in_var.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _NETINET6_IN6_VAR_H_
#define _NETINET6_IN6_VAR_H_
#include <sys/appleapiopts.h>
#include <net/net_kev.h>
#ifdef BSD_KERNEL_PRIVATE
#include <sys/tree.h>
#include <sys/mcache.h>
#endif /* BSD_KERNEL_PRIVATE */
#include <netinet6/scope6_var.h>
#include <sys/kern_event.h>
#include <net/ethernet.h>
/*
* pltime/vltime are just for future reference (required to implements 2
* hour rule for hosts). they should never be modified by nd6_timeout or
* anywhere else.
* userland -> kernel: accept pltime/vltime
* kernel -> userland: throw up everything
* in kernel: modify preferred/expire only
*/
struct in6_addrlifetime {
time_t ia6t_expire; /* valid lifetime expiration time */
time_t ia6t_preferred; /* preferred lifetime expiration time */
u_int32_t ia6t_vltime; /* valid lifetime */
u_int32_t ia6t_pltime; /* prefix lifetime */
};
#ifdef BSD_KERNEL_PRIVATE
struct in6_addrlifetime_32 {
u_int32_t ia6t_expire;
u_int32_t ia6t_preferred;
u_int32_t ia6t_vltime;
u_int32_t ia6t_pltime;
};
struct in6_addrlifetime_64 {
u_int64_t ia6t_expire;
u_int64_t ia6t_preferred;
u_int32_t ia6t_vltime;
u_int32_t ia6t_pltime;
};
/*
* Internal representation of ia6_lifetime (expiration in uptime unit)
*/
struct in6_addrlifetime_i {
u_int64_t ia6ti_expire; /* valid lifetime expiration time */
u_int64_t ia6ti_preferred; /* preferred lifetime expiration time */
u_int32_t ia6ti_vltime; /* valid lifetime */
u_int32_t ia6ti_pltime; /* prefix lifetime */
u_int64_t ia6ti_base_calendartime; /* calendar time at creation */
u_int64_t ia6ti_base_uptime; /* uptime at creation */
};
/*
* Interface address, IPv6 version. One of these structures
* is allocated for each interface with an IPv6 address.
* The ifaddr structure contains the protocol-independent part
* of the structure and is assumed to be first.
*/
struct in6_ifaddr {
struct ifaddr ia_ifa; /* protocol-independent info */
#define ia_ifp ia_ifa.ifa_ifp
#define ia_flags ia_ifa.ifa_flags
struct sockaddr_in6 ia_addr; /* interface address */
struct sockaddr_in6 ia_net; /* network number of interface */
struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
struct sockaddr_in6 ia_prefixmask; /* prefix mask */
u_int32_t ia_plen; /* prefix length */
TAILQ_ENTRY(in6_ifaddr) ia6_link; /* next in6 list of IP6 addresses */
TAILQ_ENTRY(in6_ifaddr) ia6_hash; /* hash bucket entry */
int ia6_flags;
/* cga collision count */
uint8_t ia6_cga_collision_count;
struct in6_addrlifetime_i ia6_lifetime;
/*
* the creation time of this address, which is
* currently used for temporary addresses only.
*/
u_int64_t ia6_createtime;
u_int64_t ia6_updatetime;
/* back pointer to the ND prefix */
struct nd_prefix *ia6_ndpr;
/* multicast addresses joined from the kernel */
LIST_HEAD(, in6_multi_mship) ia6_memberships;
};
#define ifatoia6(ifa) ((struct in6_ifaddr *)(void *)(ifa))
extern TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr) in6_ifaddrhead;
extern TAILQ_HEAD(in6_ifaddrhashhead, in6_ifaddr) * in6_ifaddrhashtbl;
extern uint32_t in6addr_nhash; /* hash table size */
extern uint32_t in6addr_hashp; /* next largest prime */
static __inline uint32_t
in6addr_hashval(const struct in6_addr *in6)
{
/*
* The hash index is the computed prime times the key modulo
* the hash size, as documented in "Introduction to Algorithms"
* (Cormen, Leiserson, Rivest).
*/
if (in6addr_nhash > 1) {
uint32_t x;
x = in6->s6_addr32[0] ^ in6->s6_addr32[1] ^ in6->s6_addr32[2] ^
in6->s6_addr32[3];
return (x * in6addr_hashp) % in6addr_nhash;
} else {
return 0;
}
}
#define IN6ADDR_HASH(x) (&in6_ifaddrhashtbl[in6addr_hashval(x)])
#endif /* BSD_KERNEL_PRIVATE */
/* control structure to manage address selection policy */
struct in6_addrpolicy {
struct sockaddr_in6 addr; /* prefix address */
struct sockaddr_in6 addrmask; /* prefix mask */
int preced; /* precedence */
int label; /* matching label */
u_quad_t use; /* statistics */
};
/*
* IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
*/
struct in6_ifstat {
u_quad_t ifs6_in_receive; /* # of total input datagram */
u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
/* NOTE: increment on final dst if */
u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
u_quad_t ifs6_in_discard; /* # of discarded datagrams */
/* NOTE: fragment timeout is not here */
u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
/* NOTE: increment on final dst if */
u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
/* NOTE: increment on outgoing if */
u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
/* NOTE: does not include forwrads */
u_quad_t ifs6_out_discard; /* # of discarded datagrams */
u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
/* NOTE: this is # after fragment */
u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
/* NOTE: increment on final dst if */
u_quad_t ifs6_reass_ok; /* # of reassembled packets */
/* NOTE: this is # after reass */
/* NOTE: increment on final dst if */
u_quad_t ifs6_atmfrag_rcvd; /* # of atomic fragments received */
u_quad_t ifs6_reass_fail; /* # of reass failures */
/* NOTE: may not be packet count */
/* NOTE: increment on final dst if */
u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
u_quad_t ifs6_cantfoward_icmp6; /* # of ICMPv6 packets received for unreachable dest */
u_quad_t ifs6_addr_expiry_cnt; /* # of address expiry events (excluding privacy addresses) */
u_quad_t ifs6_pfx_expiry_cnt; /* # of prefix expiry events */
u_quad_t ifs6_defrtr_expiry_cnt; /* # of default router expiry events */
};
/*
* ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
* XXX: I'm not sure if this file is the right place for this structure...
*/
struct icmp6_ifstat {
/*
* Input statistics
*/
/* ipv6IfIcmpInMsgs, total # of input messages */
u_quad_t ifs6_in_msg;
/* ipv6IfIcmpInErrors, # of input error messages */
u_quad_t ifs6_in_error;
/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
u_quad_t ifs6_in_dstunreach;
/* ipv6IfIcmpInAdminProhibs, # of input admin. prohibited errs */
u_quad_t ifs6_in_adminprohib;
/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
u_quad_t ifs6_in_timeexceed;
/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
u_quad_t ifs6_in_paramprob;
/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
u_quad_t ifs6_in_pkttoobig;
/* ipv6IfIcmpInEchos, # of input echo requests */
u_quad_t ifs6_in_echo;
/* ipv6IfIcmpInEchoReplies, # of input echo replies */
u_quad_t ifs6_in_echoreply;
/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
u_quad_t ifs6_in_routersolicit;
/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
u_quad_t ifs6_in_routeradvert;
/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
u_quad_t ifs6_in_neighborsolicit;
/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advs. */
u_quad_t ifs6_in_neighboradvert;
/* ipv6IfIcmpInRedirects, # of input redirects */
u_quad_t ifs6_in_redirect;
/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
u_quad_t ifs6_in_mldquery;
/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
u_quad_t ifs6_in_mldreport;
/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
u_quad_t ifs6_in_mlddone;
/*
* Output statistics. We should solve unresolved routing problem...
*/
/* ipv6IfIcmpOutMsgs, total # of output messages */
u_quad_t ifs6_out_msg;
/* ipv6IfIcmpOutErrors, # of output error messages */
u_quad_t ifs6_out_error;
/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
u_quad_t ifs6_out_dstunreach;
/* ipv6IfIcmpOutAdminProhibs, # of output admin. prohibited errs */
u_quad_t ifs6_out_adminprohib;
/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
u_quad_t ifs6_out_timeexceed;
/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
u_quad_t ifs6_out_paramprob;
/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
u_quad_t ifs6_out_pkttoobig;
/* ipv6IfIcmpOutEchos, # of output echo requests */
u_quad_t ifs6_out_echo;
/* ipv6IfIcmpOutEchoReplies, # of output echo replies */
u_quad_t ifs6_out_echoreply;
/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
u_quad_t ifs6_out_routersolicit;
/* ipv6IfIcmpOutRouterAdvertisements, # of output router advs. */
u_quad_t ifs6_out_routeradvert;
/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
u_quad_t ifs6_out_neighborsolicit;
/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advs. */
u_quad_t ifs6_out_neighboradvert;
/* ipv6IfIcmpOutRedirects, # of output redirects */
u_quad_t ifs6_out_redirect;
/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
u_quad_t ifs6_out_mldquery;
/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
u_quad_t ifs6_out_mldreport;
/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
u_quad_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;
int ifru_intval;
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[SCOPE6_ID_MAX];
} 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;
};
#ifdef PRIVATE
#define IN6_CGA_MODIFIER_LENGTH 16
struct in6_cga_modifier {
u_int8_t octets[IN6_CGA_MODIFIER_LENGTH];
};
struct in6_cga_prepare {
struct in6_cga_modifier cga_modifier;
u_int8_t cga_security_level;
u_int8_t reserved_A[15];
};
#define IN6_CGA_KEY_MAXSIZE 2048 /* octets */
struct in6_cga_nodecfg {
struct iovec cga_privkey;
struct iovec cga_pubkey;
struct in6_cga_prepare cga_prepare;
};
struct in6_cgareq {
char cgar_name[IFNAMSIZ];
int cgar_flags;
struct in6_cga_prepare cgar_cgaprep;
struct in6_addrlifetime cgar_lifetime;
uint8_t cgar_collision_count;
};
#ifdef BSD_KERNEL_PRIVATE
struct in6_cgareq_32 {
char cgar_name[IFNAMSIZ];
int cgar_flags;
struct in6_cga_prepare cgar_cgaprep;
struct in6_addrlifetime_32 cgar_lifetime;
uint8_t cgar_collision_count;
};
struct in6_cgareq_64 {
char cgar_name[IFNAMSIZ];
int cgar_flags;
struct in6_cga_prepare cgar_cgaprep;
struct in6_addrlifetime_64 cgar_lifetime;
uint8_t cgar_collision_count;
};
#endif /* !BSD_KERNEL_PRIVATE */
#endif /* PRIVATE */
#ifdef BSD_KERNEL_PRIVATE
struct in6_aliasreq_32 {
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_32 ifra_lifetime;
};
struct in6_aliasreq_64 {
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_64 ifra_lifetime;
};
#endif /* BSD_KERNEL_PRIVATE */
/* 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
/*
* Event data, inet6 style.
*/
struct kev_in6_addrlifetime {
u_int32_t ia6t_expire;
u_int32_t ia6t_preferred;
u_int32_t ia6t_vltime;
u_int32_t ia6t_pltime;
};
struct kev_in6_data {
struct net_event_data link_data;
struct sockaddr_in6 ia_addr; /* interface address */
struct sockaddr_in6 ia_net; /* network number of interface */
struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
struct sockaddr_in6 ia_prefixmask; /* prefix mask */
u_int32_t ia_plen; /* prefix length */
u_int32_t ia6_flags; /* address flags from in6_ifaddr */
struct kev_in6_addrlifetime ia_lifetime; /* address life info */
uint8_t ia_mac[ETHER_ADDR_LEN];
};
#ifdef BSD_KERNEL_PRIVATE
/* Utility function used inside netinet6 kernel code for generating events */
void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *, uint8_t *mac);
#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)
/*
* 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 *)(void *)((x)->ifa_addr))->sin6_addr)
#define IFA_DSTIN6(x) \
(&((struct sockaddr_in6 *)(void *)((x)->ifa_dstaddr))->sin6_addr)
#define IFPR_IN6(x) \
(&((struct sockaddr_in6 *)(void *)((x)->ifpr_prefix))->sin6_addr)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
/*
* 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)
#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 SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCAIFADDR_IN6_32 _IOW('i', 26, struct in6_aliasreq_32)
#define SIOCAIFADDR_IN6_64 _IOW('i', 26, struct in6_aliasreq_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCSIFPHYADDR_IN6 _IOW('i', 62, struct in6_aliasreq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCSIFPHYADDR_IN6_32 _IOW('i', 62, struct in6_aliasreq_32)
#define SIOCSIFPHYADDR_IN6_64 _IOW('i', 62, struct in6_aliasreq_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 63, struct in6_ifreq)
#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 64, struct in6_ifreq)
#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCGDRLST_IN6_32 _IOWR('i', 74, struct in6_drlist_32)
#define SIOCGDRLST_IN6_64 _IOWR('i', 74, struct in6_drlist_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCGPRLST_IN6_32 _IOWR('i', 75, struct in6_prlist_32)
#define SIOCGPRLST_IN6_64 _IOWR('i', 75, struct in6_prlist_64)
#endif /* BSD_KERNEL_PRIVATE */
#define OSIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ondireq)
#define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCGNBRINFO_IN6_32 _IOWR('i', 78, struct in6_nbrinfo_32)
#define SIOCGNBRINFO_IN6_64 _IOWR('i', 78, struct in6_nbrinfo_64)
#endif /* BSD_KERNEL_PRIVATE */
#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 SIOCSIFALIFETIME_IN6 _IOWR('i', 82, 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)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCSDEFIFACE_IN6_32 _IOWR('i', 85, struct in6_ndifreq_32)
#define SIOCSDEFIFACE_IN6_64 _IOWR('i', 85, struct in6_ndifreq_64)
#define SIOCGDEFIFACE_IN6_32 _IOWR('i', 86, struct in6_ndifreq_32)
#define SIOCGDEFIFACE_IN6_64 _IOWR('i', 86, struct in6_ndifreq_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
/* N.B.: These 3 ioctls are deprecated and won't work */
#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 */
/* change */
#define SIOCCIFPREFIX_IN6 _IOW('i', 104, struct in6_rrenumreq)
/* set global */
#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, struct in6_rrenumreq)
/*
* multicast routing, get s/g pkt cnt, pkt cnt per interface.
*/
#define SIOCGETSGCNT_IN6 _IOWR('u', 28, struct sioc_sg_req6)
#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, struct sioc_mif_req6)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCGETMIFCNT_IN6_32 _IOWR('u', 107, struct sioc_mif_req6_32)
#define SIOCGETMIFCNT_IN6_64 _IOWR('u', 107, struct sioc_mif_req6_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
#ifdef PRIVATE
/*
* temporary control calls to attach/detach IPv6 to/from an interface.
*/
#define SIOCPROTOATTACH_IN6 _IOWR('i', 110, struct in6_aliasreq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCPROTOATTACH_IN6_32 _IOWR('i', 110, struct in6_aliasreq_32)
#define SIOCPROTOATTACH_IN6_64 _IOWR('i', 110, struct in6_aliasreq_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCPROTODETACH_IN6 _IOWR('i', 111, struct in6_ifreq)
/*
* start/stop aquiring linklocal on interface
*/
#define SIOCLL_START _IOWR('i', 130, struct in6_aliasreq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCLL_START_32 _IOWR('i', 130, struct in6_aliasreq_32)
#define SIOCLL_START_64 _IOWR('i', 130, struct in6_aliasreq_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCLL_STOP _IOWR('i', 131, struct in6_ifreq)
/*
* accept rtadvd (and stop accepting) on this interface.
*/
#define SIOCAUTOCONF_START _IOWR('i', 132, struct in6_ifreq)
#define SIOCAUTOCONF_STOP _IOWR('i', 133, struct in6_ifreq)
/*
* add/remove default IPv6 router.
*/
#define SIOCDRADD_IN6 _IOWR('u', 134, struct in6_defrouter)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCDRADD_IN6_32 _IOWR('u', 134, struct in6_defrouter_32)
#define SIOCDRADD_IN6_64 _IOWR('u', 134, struct in6_defrouter_64)
#endif /* BSD_KERNEL_PRIVATE */
#define SIOCDRDEL_IN6 _IOWR('u', 135, struct in6_defrouter)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCDRDEL_IN6_32 _IOWR('u', 135, struct in6_defrouter_32)
#define SIOCDRDEL_IN6_64 _IOWR('u', 135, struct in6_defrouter_64)
#endif /* BSD_KERNEL_PRIVATE */
/*
* SIOCSETROUTERMODE_IN6
* Set the IPv6 router mode on an interface.
*
* IPV6_ROUTER_MODE_DISABLED
* - disable IPv6 router mode if it is enabled
* - if the previous mode was IPV6_ROUTER_MODE_EXCUSIVE,
* scrubs all IPv6 auto-configured addresses
*
* IPV6_ROUTER_MODE_EXCLUSIVE
* - act exclusively as an IPv6 router on the interface
* - disables accepting external Router Advertisements
* - scrubs all IPv6 auto-configured addresses
* - disables optimistic dad
* - disables ND6 prefix proxy, if enabled
* - used by the internet sharing/personal hotspot feature
*
* IPV6_ROUTER_MODE_HYBRID
* - act as both an IPv6 router and IPv6 client on the interface
* - does not modify whether to accept Router Advertisements
* - does not scrub any addresses
* - used when acting as the gateway/router for an otherwise isolated
* network whose existence is likely advertised via a
* a Route Information Option in a Router Advertisement
*/
#define IPV6_ROUTER_MODE_DISABLED 0
#define IPV6_ROUTER_MODE_EXCLUSIVE 1
#define IPV6_ROUTER_MODE_HYBRID 2
#define SIOCSETROUTERMODE_IN6 _IOWR('i', 136, struct in6_ifreq)
#define SIOCGETROUTERMODE_IN6 _IOWR('i', 137, struct in6_ifreq)
/*
* start secure link-local interface addresses
*/
#define SIOCLL_CGASTART _IOW('i', 160, struct in6_cgareq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCLL_CGASTART_32 _IOW('i', 160, struct in6_cgareq_32)
#define SIOCLL_CGASTART_64 _IOW('i', 160, struct in6_cgareq_64)
#endif
/*
* get/set the CGA parameters
*/
#define SIOCGIFCGAPREP_IN6 _IOWR('i', 187, struct in6_cgareq)
#define SIOCSIFCGAPREP_IN6 _IOWR('i', 188, struct in6_cgareq)
#ifdef BSD_KERNEL_PRIVATE
#define SIOCGIFCGAPREP_IN6_32 _IOWR('i', 187, struct in6_cgareq_32)
#define SIOCGIFCGAPREP_IN6_64 _IOWR('i', 187, struct in6_cgareq_64)
#define SIOCSIFCGAPREP_IN6_32 _IOWR('i', 188, struct in6_cgareq_32)
#define SIOCSIFCGAPREP_IN6_64 _IOWR('i', 188, struct in6_cgareq_64)
#endif
#define SIOCCLAT46_START _IOWR('i', 189, struct in6_ifreq)
#define SIOCCLAT46_STOP _IOWR('i', 190, struct in6_ifreq)
#endif /* PRIVATE */
#ifdef BSD_KERNEL_PRIVATE
/*
* XXX: Do not extend IN6_IFF values beyond 16-bit. We currently copy the
* values from ia6_flags as is into m_pkthdr.{src,dst}_iff which are
* defined as 16-bit variables. We can relax this once we define a
* unified set of interface flags for {ia,ia6}_flags and perform
* translation between those and the publicly-defined ones below.
*/
#endif /* BSD_KERNEL_PRIVATE */
#define IN6_IFF_ANYCAST 0x0001 /* anycast address */
#define IN6_IFF_TENTATIVE 0x0002 /* tentative address */
#define IN6_IFF_DUPLICATED 0x0004 /* DAD detected duplicate */
#define IN6_IFF_DETACHED 0x0008 /* XXX Obsolete. May be detached from the link */
#define IN6_IFF_DEPRECATED 0x0010 /* deprecated address */
/* don't perform DAD on this address (used only at first SIOC* call) */
#define IN6_IFF_NODAD 0x0020
#define IN6_IFF_AUTOCONF 0x0040 /* autoconfigurable address. */
#define IN6_IFF_TEMPORARY 0x0080 /* temporary (anonymous) address. */
#define IN6_IFF_DYNAMIC 0x0100 /* assigned by DHCPv6 service */
#define IN6_IFF_OPTIMISTIC 0x0200 /* optimistic DAD, i.e. RFC 4429 */
#define IN6_IFF_SECURED 0x0400 /* cryptographically generated */
#ifdef PRIVATE
#define IN6_IFF_SWIFTDAD 0x0800 /* DAD with no delay */
#endif
#define IN6_IFF_CLAT46 0x1000 /* Address reserved for CLAT46 */
#define IN6_IFF_NOPFX 0x8000 /* Depreciated. Don't use. */
/* Duplicate Address Detection [DAD] in progress. */
#define IN6_IFF_DADPROGRESS (IN6_IFF_TENTATIVE|IN6_IFF_OPTIMISTIC)
/* do not input/output */
#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
/* SLAAC/DHCPv6 address */
#define IN6_IFF_NOTMANUAL (IN6_IFF_AUTOCONF|IN6_IFF_DYNAMIC)
#ifdef KERNEL
#define IN6_ARE_SCOPE_CMP(a, b) ((a) - (b))
#define IN6_ARE_SCOPE_EQUAL(a, b) ((a) == (b))
#endif /* KERNEL */
#ifdef BSD_KERNEL_PRIVATE
extern struct icmp6stat icmp6stat;
extern lck_rw_t in6_ifaddr_rwlock;
extern lck_mtx_t proxy6_lock;
extern u_char inet6ctlerrmap[];
extern u_int32_t in6_maxmtu;
/* N.B.: if_inet6data is never freed once set, so we don't need to lock */
#define in6_ifstat_add_common(_ifp, _tag, _count, _atomic) do { \
if (_ifp != NULL && IN6_IFEXTRA(_ifp) != NULL) { \
if (_atomic) \
atomic_add_64( \
&IN6_IFEXTRA(_ifp)->in6_ifstat._tag, _count);\
else \
IN6_IFEXTRA(_ifp)->in6_ifstat._tag += _count; \
} \
} while (0)
/* atomic version */
#define in6_ifstat_inc(_ifp, _tag) \
in6_ifstat_add_common(_ifp, _tag, 1, TRUE)
/* non-atomic version (for fast paths) */
#define in6_ifstat_inc_na(_ifp, _tag) \
in6_ifstat_add_common(_ifp, _tag, 1, FALSE)
/* atomic add version */
#define in6_ifstat_add(_ifp, _tag, _count) \
in6_ifstat_add_common(_ifp, _tag, _count, TRUE)
/*
* Macro for finding the internet address structure (in6_ifaddr) corresponding
* to a given interface (ifnet structure).
*/
#define IFP_TO_IA6(ifp, ia) \
/* struct ifnet *ifp; */ \
/* struct in6_ifaddr *ia; */ \
do { \
struct ifaddr *_ifa; \
ifnet_lock_assert(ifp, LCK_RW_ASSERT_HELD); \
for (_ifa = (ifp)->if_addrlist.tqh_first; _ifa != NULL; \
_ifa = _ifa->ifa_list.tqe_next) { \
IFA_LOCK(_ifa); \
if (_ifa->ifa_addr->sa_family == AF_INET6) { \
IFA_ADDREF_LOCKED(_ifa); \
IFA_UNLOCK(_ifa); \
break; \
} \
IFA_UNLOCK(_ifa); \
} \
(ia) = (struct in6_ifaddr *)_ifa; \
} while (0)
/*
* 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);
RB_PROTOTYPE_SC_PREV(__private_extern__, ip6_msource_tree, ip6_msource,
im6s_link, ip6_msource_cmp);
/*
* 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 */
};
/*
* 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; /* Multicast address pointer */
LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
};
#ifdef BSD_KERNEL_PRIVATE
#include <netinet6/nd6_var.h>
#include <net/if_llatbl.h>
/*
* Per-interface IPv6 structures.
*/
struct in6_ifextra {
struct scope6_id scope6_id;
struct in6_ifstat in6_ifstat;
struct icmp6_ifstat icmp6_ifstat;
struct nd_ifinfo nd_ifinfo;
uint32_t netsig_len;
u_int8_t netsig[IFNET_SIGNATURELEN];
struct ipv6_prefix nat64_prefixes[NAT64_MAX_NUM_PREFIXES];
struct lltable *ii_llt; /* NDP state */
};
#define IN6_IFEXTRA(_ifp) ((struct in6_ifextra *)(_ifp->if_inet6data))
#define LLTABLE6(ifp) ((IN6_IFEXTRA(ifp) == NULL) ? NULL : IN6_IFEXTRA(ifp)->ii_llt)
#endif /* BSD_KERNEL_PRIVATE */
struct mld_ifinfo;
/*
* 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.
*
* The request count here is a count of requests for this address, not a
* count of pointers to this structure.
*
* FUTURE: in6m_entry is now only used when groups are being purged
* on a detaching ifnet. It could be demoted to a SLIST_ENTRY.
*/
struct in6_multi {
decl_lck_mtx_data(, in6m_lock);
u_int32_t in6m_refcount; /* reference count */
u_int32_t in6m_reqcnt; /* request count for this address */
u_int32_t in6m_debug; /* see ifa_debug flags */
LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
struct in6_addr in6m_addr; /* IP6 multicast address */
struct ifnet *in6m_ifp; /* back pointer to ifnet */
struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
u_int in6m_state; /* state of the membership */
u_int in6m_timer; /* MLD6 listener report timer */
/* New fields for MLDv2 follow. */
struct mld_ifinfo *in6m_mli; /* MLD info */
SLIST_ENTRY(in6_multi) in6m_dtle; /* detached waiting for rele */
SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
u_int32_t in6m_nrelecnt; /* deferred release count */
struct ip6_msource_tree in6m_srcs; /* tree of sources */
u_long in6m_nsrc; /* # of tree entries */
struct ifqueue in6m_scq; /* 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_trace) /* callback fn for tracing refs */
(struct in6_multi *, int);
};
#define IN6M_LOCK_ASSERT_HELD(_in6m) \
LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_OWNED)
#define IN6M_LOCK_ASSERT_NOTHELD(_in6m) \
LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_NOTOWNED)
#define IN6M_LOCK(_in6m) \
lck_mtx_lock(&(_in6m)->in6m_lock)
#define IN6M_LOCK_SPIN(_in6m) \
lck_mtx_lock_spin(&(_in6m)->in6m_lock)
#define IN6M_CONVERT_LOCK(_in6m) do { \
IN6M_LOCK_ASSERT_HELD(_in6m); \
lck_mtx_convert_spin(&(_in6m)->in6m_lock); \
} while (0)
#define IN6M_UNLOCK(_in6m) \
lck_mtx_unlock(&(_in6m)->in6m_lock)
#define IN6M_ADDREF(_in6m) \
in6m_addref(_in6m, 0)
#define IN6M_ADDREF_LOCKED(_in6m) \
in6m_addref(_in6m, 1)
#define IN6M_REMREF(_in6m) \
in6m_remref(_in6m, 0)
#define IN6M_REMREF_LOCKED(_in6m) \
in6m_remref(_in6m, 1)
/* flags to in6_update_ifa */
#define IN6_IFAUPDATE_NOWAIT 0x1 /* don't block allocating memory */
#define IN6_IFAUPDATE_1STADDR 0x2 /* first address on interface */
#define IN6_IFAUPDATE_NEWADDR 0x4 /* new address on interface */
#define IN6_IFAUPDATE_DADDELAY 0x8 /* must delay initial DAD probe */
struct ip6_moptions;
struct sockopt;
struct inpcb;
extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
/*
* Structure used by macros below to remember position when stepping through
* all of the in6_multi records.
*/
struct in6_multistep {
struct in6_ifaddr *i_ia;
struct in6_multi *i_in6m;
};
/*
* Macros for looking up the in6_multi record for a given IP6 multicast
* address on a given interface. If no matching record is found, "in6m"
* returns NULL.
*
* We do this differently compared other BSD implementations; instead of
* walking the if_multiaddrs list at the interface and returning the
* ifma_protospec value of a matching entry, we search the global list
* of in6_multi records and find it that way. Otherwise either the two
* structures (in6_multi, ifmultiaddr) need to be ref counted both ways,
* which will make things too complicated, or they need to reside in the
* same protected domain, which they aren't.
*
* Must be called with in6_multihead_lock held.
*/
#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
/* struct in6_addr *addr; */ \
/* struct ifnet *ifp; */ \
/* struct in6_multi *in6m; */ \
do { \
struct in6_multistep _step; \
IN6_FIRST_MULTI(_step, in6m); \
while ((in6m) != NULL) { \
IN6M_LOCK_SPIN(in6m); \
if ((in6m)->in6m_ifp == (ifp) && \
IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, (addr))) { \
IN6M_ADDREF_LOCKED(in6m); \
IN6M_UNLOCK(in6m); \
break; \
} \
IN6M_UNLOCK(in6m); \
IN6_NEXT_MULTI(_step, in6m); \
} \
} while (0)
/*
* Macro to step through all of the in6_multi records, one at a time.
* The current position is remembered in "step", which the caller must
* provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
* and get the first record. Both macros return a NULL "in6m" when there
* are no remaining records.
*
* Must be called with in6_multihead_lock held.
*/
#define IN6_NEXT_MULTI(step, in6m) \
/* struct in6_multistep step; */ \
/* struct in6_multi *in6m; */ \
do { \
in6_multihead_lock_assert(LCK_RW_ASSERT_HELD); \
if (((in6m) = (step).i_in6m) != NULL) \
(step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
} while (0)
#define IN6_FIRST_MULTI(step, in6m) \
/* struct in6_multistep step; */ \
/* struct in6_multi *in6m */ \
do { \
in6_multihead_lock_assert(LCK_RW_ASSERT_HELD); \
(step).i_in6m = in6_multihead.lh_first; \
IN6_NEXT_MULTI((step), (in6m)); \
} while (0)
extern lck_mtx_t *inet6_domain_mutex;
extern struct domain *inet6domain;
struct ip6_pktopts;
/* Multicast private KPIs. */
extern int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
const struct sockaddr_in6 *, const struct sockaddr_in6 *);
extern int in6_mc_join(struct ifnet *, const struct in6_addr *,
struct in6_mfilter *, struct in6_multi **, int);
extern int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
extern void in6m_clear_recorded(struct in6_multi *);
extern void in6m_commit(struct in6_multi *);
extern void in6m_purge(struct in6_multi *);
extern void in6m_print(const struct in6_multi *);
extern int in6m_record_source(struct in6_multi *, const struct in6_addr *);
extern int ip6_getmoptions(struct inpcb *, struct sockopt *);
extern int ip6_setmoptions(struct inpcb *, struct sockopt *);
/* Legacy KAME multicast private KPIs. */
extern struct in6_multi_mship *in6_joingroup(struct ifnet *,
struct in6_addr *, int *, int);
extern int in6_leavegroup(struct in6_multi_mship *);
extern void in6_multi_init(void);
extern void in6m_addref(struct in6_multi *, int);
extern void in6m_remref(struct in6_multi *, int);
extern int in6_multi_detach(struct in6_multi *);
extern int in6_ifindex2scopeid(int);
extern int in6_mask2len(struct in6_addr *, u_char *);
extern void in6_len2mask(struct in6_addr *, int);
extern int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
struct proc *);
extern int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int,
struct in6_ifaddr **);
extern void in6_purgeaddr(struct ifaddr *);
extern int in6if_do_dad(struct ifnet *);
extern void in6_purgeif(struct ifnet *);
extern void in6_savemkludge(struct in6_ifaddr *);
extern void in6_setmaxmtu(void);
extern void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
extern void in6_purgemkludge(struct ifnet *);
extern struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
extern struct in6_ifaddr *in6ifa_ifpwithflag(struct ifnet *, int);
extern struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
extern struct in6_ifaddr *in6ifa_prproxyaddr(struct in6_addr *);
extern void in6ifa_getlifetime(struct in6_ifaddr *,
struct in6_addrlifetime *, int);
extern void in6ifa_setlifetime(struct in6_ifaddr *, struct in6_addrlifetime *);
extern char *ip6_sprintf(const struct in6_addr *);
extern int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
extern int in6_matchlen(struct in6_addr *, struct in6_addr *);
extern int in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2,
int len);
extern void in6_prefixlen2mask(struct in6_addr *maskp, int len);
extern int in6_prefix_add_ifid(int iilen, struct in6_ifaddr *ia);
extern void in6_prefix_remove_ifid(int iilen, struct in6_ifaddr *ia);
extern void in6_purgeprefix(struct ifnet *);
extern void in6_purgeaddrs(struct ifnet *);
extern uint8_t im6s_get_mode(const struct in6_multi *,
const struct ip6_msource *, uint8_t);
extern void im6f_leave(struct in6_mfilter *);
extern void im6f_purge(struct in6_mfilter *);
extern int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
struct inpcb *, struct ifnet **, struct ip6_pktopts *);
extern int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
struct ifnet *);
extern void in6_aliasreq_64_to_32(struct in6_aliasreq_64 *,
struct in6_aliasreq_32 *);
extern void in6_aliasreq_32_to_64(struct in6_aliasreq_32 *,
struct in6_aliasreq_64 *);
extern void in6_ifaddr_init(void);
extern int in6_inithead(void **, int);
extern void in6_rtqdrain(void);
extern struct radix_node *in6_validate(struct radix_node *);
extern int in6_if2idlen(struct ifnet *);
extern int in6_src_ioctl(u_long, caddr_t);
extern void in6_multihead_lock_exclusive(void);
extern void in6_multihead_lock_shared(void);
extern void in6_multihead_lock_assert(int);
extern void in6_multihead_lock_done(void);
extern void in6_cga_init(void);
extern void in6_cga_node_lock(void);
extern void in6_cga_node_unlock(void);
extern void in6_cga_query(struct in6_cga_nodecfg *);
extern int in6_cga_start(const struct in6_cga_nodecfg *);
extern int in6_cga_stop(void);
extern ssize_t in6_cga_parameters_prepare(void *, size_t,
const struct in6_addr *, u_int8_t, const struct in6_cga_modifier *);
extern int in6_cga_generate(struct in6_cga_prepare *, u_int8_t,
struct in6_addr *, struct ifnet *);
extern int in6_getconninfo(struct socket *, sae_connid_t, uint32_t *,
uint32_t *, int32_t *, user_addr_t, socklen_t *,
user_addr_t, socklen_t *, uint32_t *, user_addr_t, uint32_t *);
extern void in6_ip6_to_sockaddr(const struct in6_addr *ip6, u_int16_t port,
struct sockaddr_in6 *sin6, u_int32_t maxlen);
extern void in6_cgareq_copy_from_user(const void *, int,
struct in6_cgareq *cgareq);
#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NETINET6_IN6_VAR_H_ */
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