diff options
author | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-07 09:52:04 -0600 |
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committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-03-07 09:52:04 -0600 |
commit | a9153ec3040f54fa52b68e14dafed2aba7b780ae (patch) | |
tree | fda80e3380dfebf7d97868507aa185757852e882 /rtems/freebsd/netinet6/in6_var.h | |
download | rtems-libbsd-a9153ec3040f54fa52b68e14dafed2aba7b780ae.tar.bz2 |
Initial import
Code is based on FreeBSD 8.2 with USB support from Sebastian Huber
and Thomas Doerfler. Initial TCP/IP stack work is from Kevel Kirspel.
Diffstat (limited to 'rtems/freebsd/netinet6/in6_var.h')
-rw-r--r-- | rtems/freebsd/netinet6/in6_var.h | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/rtems/freebsd/netinet6/in6_var.h b/rtems/freebsd/netinet6/in6_var.h new file mode 100644 index 00000000..f999191f --- /dev/null +++ b/rtems/freebsd/netinet6/in6_var.h @@ -0,0 +1,786 @@ +/*- + * 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. + * + * $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ + */ + +/*- + * 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. + * 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 + * $FreeBSD$ + */ + +#ifndef _NETINET6_IN6_VAR_HH_ +#define _NETINET6_IN6_VAR_HH_ + +#include <rtems/freebsd/sys/tree.h> + +#ifdef _KERNEL +#include <rtems/freebsd/sys/libkern.h> +#endif + +/* + * Interface address, Internet version. One of these structures + * is allocated for each interface with an Internet address. + * The ifaddr structure contains the protocol-independent part + * of the structure and is assumed to be first. + */ + +/* + * 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 */ +}; + +struct nd_ifinfo; +struct scope6_id; +struct lltable; +struct mld_ifinfo; + +struct in6_ifextra { + struct in6_ifstat *in6_ifstat; + struct icmp6_ifstat *icmp6_ifstat; + struct nd_ifinfo *nd_ifinfo; + struct scope6_id *scope6_id; + struct lltable *lltable; + struct mld_ifinfo *mld_ifinfo; +}; + +#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) + +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) ia_link; /* list of IPv6 addresses */ + int ia6_flags; + + struct in6_addrlifetime ia6_lifetime; + time_t ia6_createtime; /* the creation time of this address, which is + * currently used for temporary addresses only. + */ + time_t ia6_updatetime; + + /* back pointer to the ND prefix (for autoconfigured addresses only) */ + struct nd_prefix *ia6_ndpr; + + /* multicast addresses joined from the kernel */ + LIST_HEAD(, in6_multi_mship) ia6_memberships; +}; + +/* List of in6_ifaddr's. */ +TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr); + +/* 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_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 */ +}; + +/* + * 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 administratively 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 advertisements */ + 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 administratively 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 advertisements */ + u_quad_t ifs6_out_routeradvert; + /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ + u_quad_t ifs6_out_neighborsolicit; + /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ + 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; + 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; +}; + +/* 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 ) +#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 SIOCAIFADDR_IN6 _IOW('i', 26, 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) + +#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) +#ifdef _KERNEL +/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */ +#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) +#endif +#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 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) + +#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 + * (used only at first SIOC* call) + */ +#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ +#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ +#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management. + * XXX: this should be temporary. + */ + +/* 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); +#define V_in6_ifaddrhead VNET(in6_ifaddrhead) + +extern struct rwlock in6_ifaddr_lock; +#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED) +#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock) +#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED) +#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock) +#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock) +#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED) +#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock) + +VNET_DECLARE(struct icmp6stat, icmp6stat); +#define V_icmp6stat VNET(icmp6stat) +#define in6_ifstat_inc(ifp, tag) \ +do { \ + if (ifp) \ + ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ +} while (/*CONSTCOND*/ 0) + +extern struct in6_addr zeroin6_addr; +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); +#endif /* _KERNEL */ + +/* + * 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 { + LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ + 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_ifinfo *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 ifqueue 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 */ +}; + +/* + * 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); +} + +#ifdef _KERNEL + +/* + * 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_mtx; +#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx) +#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx) +#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED) +#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED) + +/* + * 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; + + IN6_MULTI_LOCK_ASSERT(); + IF_ADDR_LOCK_ASSERT(ifp); + + inm = NULL; + TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) { + if (ifma->ifma_addr->sa_family == AF_INET6) { + inm = (struct in6_multi *)ifma->ifma_protospec; + 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_LOCK(); + IF_ADDR_LOCK(ifp); + inm = in6m_lookup_locked(ifp, mcaddr); + IF_ADDR_UNLOCK(ifp); + IN6_MULTI_UNLOCK(); + + return (inm); +} + +/* Acquire an in6_multi record. */ +static __inline void +in6m_acquire_locked(struct in6_multi *inm) +{ + + IN6_MULTI_LOCK_ASSERT(); + ++inm->in6m_refcount; +} + +struct ip6_moptions; +struct sockopt; + +/* Multicast KPIs. */ +int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *, + const struct sockaddr *, const struct sockaddr *); +int in6_mc_join(struct ifnet *, const struct in6_addr *, + struct in6_mfilter *, struct in6_multi **, int); +int in6_mc_join_locked(struct ifnet *, const struct in6_addr *, + struct in6_mfilter *, struct in6_multi **, int); +int in6_mc_leave(struct in6_multi *, struct in6_mfilter *); +int in6_mc_leave_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_locked(struct in6_multi *); +void ip6_freemoptions(struct ip6_moptions *); +int ip6_getmoptions(struct inpcb *, struct sockopt *); +int ip6_setmoptions(struct inpcb *, struct sockopt *); + +/* Legacy KAME multicast KPIs. */ +struct in6_multi_mship * + in6_joingroup(struct ifnet *, struct in6_addr *, int *, int); +int in6_leavegroup(struct in6_multi_mship *); + +/* flags to in6_update_ifa */ +#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ + +int in6_mask2len __P((struct in6_addr *, u_char *)); +int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, + struct thread *)); +int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, + struct in6_ifaddr *, int)); +void in6_purgeaddr __P((struct ifaddr *)); +int in6if_do_dad __P((struct ifnet *)); +void in6_purgeif __P((struct ifnet *)); +void in6_savemkludge __P((struct in6_ifaddr *)); +void *in6_domifattach __P((struct ifnet *)); +void in6_domifdetach __P((struct ifnet *, void *)); +void in6_setmaxmtu __P((void)); +int in6_if2idlen __P((struct ifnet *)); +struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); +struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); +char *ip6_sprintf __P((char *, const struct in6_addr *)); +int in6_addr2zoneid __P((struct ifnet *, struct in6_addr *, u_int32_t *)); +int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); +int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); +void in6_prefixlen2mask __P((struct in6_addr *, int)); +int in6_prefix_ioctl __P((struct socket *, u_long, caddr_t, + struct ifnet *)); +int in6_prefix_add_ifid __P((int, struct in6_ifaddr *)); +void in6_prefix_remove_ifid __P((int, struct in6_ifaddr *)); +void in6_purgeprefix __P((struct ifnet *)); +void in6_ifremloop(struct ifaddr *); +void in6_ifaddloop(struct ifaddr *); + +int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); +struct inpcb; +int in6_src_ioctl __P((u_long, caddr_t)); +#endif /* _KERNEL */ + +#endif /* _NETINET6_IN6_VAR_HH_ */ |