X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/netinet6/in6_var.h diff --git a/bsd/netinet6/in6_var.h b/bsd/netinet6/in6_var.h index f995b623f..67f8fa429 100644 --- a/bsd/netinet6/in6_var.h +++ b/bsd/netinet6/in6_var.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008 Apple Inc. All rights reserved. + * Copyright (c) 2000-2011 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -97,6 +97,11 @@ #define _NETINET6_IN6_VAR_H_ #include +#ifdef XNU_KERNEL_PRIVATE +#include +#include +#endif + #ifdef __APPLE__ #include #endif @@ -116,7 +121,7 @@ struct in6_addrlifetime { u_int32_t ia6t_pltime; /* prefix lifetime */ }; -#if defined(KERNEL_PRIVATE) +#ifdef XNU_KERNEL_PRIVATE struct in6_addrlifetime_32 { u_int32_t ia6t_expire; u_int32_t ia6t_preferred; @@ -125,9 +130,9 @@ struct in6_addrlifetime_32 { }; struct in6_addrlifetime_64 { - time_t ia6t_expire; - time_t ia6t_preferred __attribute__((aligned(8))); - u_int32_t ia6t_vltime __attribute__((aligned(8))); + u_int64_t ia6t_expire; + u_int64_t ia6t_preferred; + u_int32_t ia6t_vltime; u_int32_t ia6t_pltime; }; @@ -150,13 +155,29 @@ struct in6_ifaddr { 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; + struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ - struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix - * (for autoconfigured addresses only) - */ + /* 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; +}; +#endif /* XNU_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 */ }; -#endif /* KERNEL_PRIVATE */ /* * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). @@ -282,7 +303,7 @@ struct in6_ifreq { union { struct sockaddr_in6 ifru_addr; struct sockaddr_in6 ifru_dstaddr; - short ifru_flags; + int ifru_flags; int ifru_flags6; int ifru_metric; caddr_t ifru_data; @@ -302,7 +323,7 @@ struct in6_aliasreq { struct in6_addrlifetime ifra_lifetime; }; -#if defined(KERNEL_PRIVATE) +#ifdef XNU_KERNEL_PRIVATE struct in6_aliasreq_32 { char ifra_name[IFNAMSIZ]; struct sockaddr_in6 ifra_addr; @@ -320,7 +341,7 @@ struct in6_aliasreq_64 { int ifra_flags; struct in6_addrlifetime_64 ifra_lifetime; }; -#endif /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ /* prefix type macro */ #define IN6_PREFIX_ND 1 @@ -404,7 +425,7 @@ struct in6_rrenumreq { #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd -#ifdef KERNEL_PRIVATE +#ifdef XNU_KERNEL_PRIVATE /* * Given a pointer to an in6_ifaddr (ifaddr), * return a pointer to the addr as a sockaddr_in6 @@ -418,7 +439,7 @@ struct in6_rrenumreq { #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) -#endif /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ /* * Event data, internet6 style. @@ -455,10 +476,10 @@ struct kev_in6_data { #define KEV_INET6_NEW_RTADV_ADDR 5 /* Autoconf router advertised address has appeared */ #define KEV_INET6_DEFROUTER 6 /* Default router dectected by kernel */ -#ifdef KERNEL_PRIVATE +#ifdef XNU_KERNEL_PRIVATE /* Utility function used inside netinet6 kernel code for generating events */ void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *); -#endif /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ @@ -481,37 +502,37 @@ void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *); #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCSIFPHYADDR_IN6 _IOW('i', 62, struct in6_aliasreq) -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_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 KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_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 KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) @@ -522,12 +543,12 @@ void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *); #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ @@ -548,30 +569,44 @@ void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *); struct sioc_sg_req6) /* get s,g pkt cnt */ #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ struct sioc_mif_req6) /* get pkt cnt per if */ -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_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 IP to/from an ethernet interface */ #define SIOCPROTOATTACH_IN6 _IOWR('i', 110, struct in6_aliasreq) /* attach proto to interface */ -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCPROTODETACH_IN6 _IOWR('i', 111, struct in6_ifreq) /* detach proto from interface */ #define SIOCLL_START _IOWR('i', 130, struct in6_aliasreq) /* start aquiring linklocal on interface */ -#ifdef KERNEL_PRIVATE +#ifdef XNU_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 /* KERNEL_PRIVATE */ +#endif /* XNU_KERNEL_PRIVATE */ #define SIOCLL_STOP _IOWR('i', 131, struct in6_ifreq) /* deconfigure linklocal from interface */ #define SIOCAUTOCONF_START _IOWR('i', 132, struct in6_ifreq) /* accept rtadvd on this interface */ #define SIOCAUTOCONF_STOP _IOWR('i', 133, struct in6_ifreq) /* stop accepting rtadv for this interface */ + +#define SIOCDRADD_IN6 _IOWR('u', 134, struct in6_defrouter) +#ifdef XNU_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 /* XNU_KERNEL_PRIVATE */ +#define SIOCDRDEL_IN6 _IOWR('u', 135, struct in6_defrouter) +#ifdef XNU_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 /* XNU_KERNEL_PRIVATE */ #endif /* PRIVATE */ #define IN6_IFF_ANYCAST 0x01 /* anycast address */ @@ -596,7 +631,7 @@ void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *); #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) #endif /* KERNEL */ -#ifdef KERNEL_PRIVATE +#ifdef XNU_KERNEL_PRIVATE extern struct in6_ifaddr *in6_ifaddrs; extern struct in6_ifstat **in6_ifstat; @@ -604,23 +639,25 @@ extern size_t in6_ifstatmax; extern struct icmp6stat icmp6stat; extern struct icmp6_ifstat **icmp6_ifstat; extern size_t icmp6_ifstatmax; +extern lck_rw_t in6_ifs_rwlock; #define in6_ifstat_inc(ifp, tag) \ -do { \ - int _z_index = ifp ? ifp->if_index : 0; \ - if ((_z_index) && _z_index <= if_index \ - && _z_index < (signed)in6_ifstatmax \ - && in6_ifstat && in6_ifstat[_z_index]) { \ - in6_ifstat[_z_index]->tag++; \ - } \ +do { \ + lck_rw_lock_shared(&in6_ifs_rwlock); \ + int _z_index = ifp ? ifp->if_index : 0; \ + if ((_z_index) && _z_index <= if_index \ + && _z_index < (signed)in6_ifstatmax \ + && in6_ifstat && in6_ifstat[_z_index]) { \ + atomic_add_64(&in6_ifstat[_z_index]->tag, 1); \ + } \ + lck_rw_done(&in6_ifs_rwlock); \ } while (0) +__private_extern__ lck_rw_t in6_ifaddr_rwlock; + extern struct ifqueue ip6intrq; /* IP6 packet input queue */ extern struct in6_addr zeroin6_addr; extern u_char inet6ctlerrmap[]; extern u_int32_t in6_maxmtu; -#ifdef MALLOC_DECLARE -MALLOC_DECLARE(M_IPMADDR); -#endif /* MALLOC_DECLARE */ /* * Macro for finding the internet address structure (in6_ifaddr) corresponding @@ -631,35 +668,156 @@ MALLOC_DECLARE(M_IPMADDR); /* struct ifnet *ifp; */ \ /* struct in6_ifaddr *ia; */ \ do { \ - struct ifaddr *ifa; \ - for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ - if (!ifa->ifa_addr) \ - continue; \ - if (ifa->ifa_addr->sa_family == AF_INET6) \ + 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; \ + (ia) = (struct in6_ifaddr *)_ifa; \ } while (0) /* - * Multi-cast membership entry. One for each group/ifp that a PCB - * belongs to. + * 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 */ }; +struct mld_ifinfo; + +/* + * The request count here is a count of requests for this address, not a + * count of pointers to this structure. + */ 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_refcount; /* # membership claims by sockets */ 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 */ + 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; /* 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_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) + +#define IN6M_TIMER_UNDEF -1 + +/* flags to in6_update_ifa */ +#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ + +struct ip6_moptions; +struct sockopt; +struct inpcb; + extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; /* @@ -674,23 +832,36 @@ struct in6_multistep { /* * 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 NLL. + * 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 ifmultiaddr *_ifma; \ - for (_ifma = (ifp)->if_multiaddrs.lh_first; _ifma; \ - _ifma = _ifma->ifma_link.le_next) { \ - if (_ifma->ifma_addr->sa_family == AF_INET6 \ - && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)_ifma->ifma_addr)->sin6_addr, \ - &(addr))) \ - break; \ - } \ - (in6m) = (struct in6_multi *)(_ifma ? _ifma->ifma_protospec : 0); \ +#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) /* @@ -699,34 +870,58 @@ do { \ * 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 { \ - if (((in6m) = (step).i_in6m) != NULL) \ - (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ -} while(0) + /* 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 { \ - (step).i_in6m = in6_multihead.lh_first; \ - IN6_NEXT_MULTI((step), (in6m)); \ -} 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 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, - int *, int); -extern void in6_delmulti(struct in6_multi *, int); +/* Multicast private KPIs. */ +extern int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *, + const struct sockaddr *, const struct sockaddr *); +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 *, - struct in6_ifaddr *, int); -extern void in6_purgeaddr(struct ifaddr *, int); + struct in6_ifaddr *, int, int); +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 *); @@ -744,20 +939,35 @@ 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 int in6_is_addr_deprecated(struct sockaddr_in6 *); +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 *); struct inpcb; +struct ip6_pktopts; extern int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *, - struct inpcb *, struct ifnet **); + struct inpcb *, struct ifnet **, struct ip6_pktopts *); extern int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *, struct ifnet *); -extern void in6_clearscope(struct in6_addr *); 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); -#endif /* KERNEL_PRIVATE */ +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); + +__private_extern__ void in6_multihead_lock_exclusive(void); +__private_extern__ void in6_multihead_lock_shared(void); +__private_extern__ void in6_multihead_lock_assert(int); +__private_extern__ void in6_multihead_lock_done(void); +#endif /* XNU_KERNEL_PRIVATE */ #endif /* _NETINET6_IN6_VAR_H_ */