X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/2d21ac55c334faf3a56e5634905ed6987fc787d4..HEAD:/bsd/netinet/in_var.h diff --git a/bsd/netinet/in_var.h b/bsd/netinet/in_var.h index 35826b528..454a58288 100644 --- a/bsd/netinet/in_var.h +++ b/bsd/netinet/in_var.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2019 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 @@ -11,10 +11,10 @@ * 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, @@ -22,7 +22,7 @@ * 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@ */ /* @@ -58,7 +58,6 @@ * SUCH DAMAGE. * * @(#)in_var.h 8.2 (Berkeley) 1/9/95 - * $FreeBSD: src/sys/netinet/in_var.h,v 1.33.2.2 2001/07/17 10:50:01 ru Exp $ */ #ifndef _NETINET_IN_VAR_H_ @@ -66,11 +65,10 @@ #include #include -#ifdef __APPLE__ #include -#endif +#include -#ifdef PRIVATE +#ifdef BSD_KERNEL_PRIVATE #include /* @@ -80,84 +78,96 @@ * of the structure and is assumed to be first. */ struct in_ifaddr { - struct ifaddr ia_ifa; /* protocol-independent info */ -#define ia_ifp ia_ifa.ifa_ifp -#define ia_flags ia_ifa.ifa_flags - /* ia_{,sub}net{,mask} in host order */ - u_long ia_net; /* network number of interface */ - u_long ia_netmask; /* mask of net part */ - u_long ia_subnet; /* subnet number, including net */ - u_long ia_subnetmask; /* mask of subnet part */ - struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ - TAILQ_ENTRY(in_ifaddr) ia_link; /* tailq macro glue */ - struct sockaddr_in ia_addr; /* reserve space for interface name */ - struct sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */ -#define ia_broadaddr ia_dstaddr - struct sockaddr_in ia_sockmask; /* reserve space for general netmask */ -#if CONFIG_FORCE_OUT_IFP - struct rtentry *ia_route; /* PDP context hack - a faux route we can use */ -#endif + struct ifaddr ia_ifa; /* protocol-independent info */ +#define ia_ifp ia_ifa.ifa_ifp +#define ia_flags ia_ifa.ifa_flags + /* ia_{,sub}net{,mask} in host order */ + u_int32_t ia_net; /* network number of interface */ + u_int32_t ia_netmask; /* mask of net part */ + u_int32_t ia_subnet; /* subnet number, including net */ + u_int32_t ia_subnetmask; /* mask of subnet part */ + struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ + TAILQ_ENTRY(in_ifaddr) ia_link; /* tailq macro glue */ + struct sockaddr_in ia_addr; /* reserve space for interface name */ + struct sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */ +#define ia_broadaddr ia_dstaddr + struct sockaddr_in ia_sockmask; /* reserve space for general netmask */ + TAILQ_ENTRY(in_ifaddr) ia_hash; /* hash bucket entry */ }; -#endif /* PRIVATE */ -struct in_aliasreq { - char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ - struct sockaddr_in ifra_addr; - struct sockaddr_in ifra_broadaddr; -#define ifra_dstaddr ifra_broadaddr - struct sockaddr_in ifra_mask; - u_int32_t ifra_unused; /* not used: used to be 'dlt' */ +#define ifatoia(ifa) ((struct in_ifaddr *)(void *)(ifa)) +#endif /* BSD_KERNEL_PRIVATE */ + +struct in_aliasreq { + char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + struct sockaddr_in ifra_addr; + struct sockaddr_in ifra_broadaddr; +#define ifra_dstaddr ifra_broadaddr + struct sockaddr_in ifra_mask; }; /* - * Event data, internet style. + * Event data, inet style. */ struct kev_in_data { - struct net_event_data link_data; - struct in_addr ia_addr; - u_int32_t ia_net; /* network number of interface */ - u_int32_t ia_netmask; /* mask of net part */ - u_int32_t ia_subnet; /* subnet number, including net */ - u_int32_t ia_subnetmask; /* mask of subnet part */ - struct in_addr ia_netbroadcast;/* to recognize net broadcasts */ - struct in_addr ia_dstaddr; + struct net_event_data link_data; + struct in_addr ia_addr; /* interface address */ + u_int32_t ia_net; /* network number of interface */ + u_int32_t ia_netmask; /* mask of net part */ + u_int32_t ia_subnet; /* subnet number, including net */ + u_int32_t ia_subnetmask; /* mask of subnet part */ + struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ + struct in_addr ia_dstaddr; }; struct kev_in_collision { - struct net_event_data link_data; /* link colliding arp was received on */ - struct in_addr ia_ipaddr; /* IP address we and another node are using */ - u_char hw_len; /* length of hardware address */ - u_char hw_addr[0]; /* variable length hardware address */ + struct net_event_data link_data; /* link where ARP was received on */ + struct in_addr ia_ipaddr; /* conflicting IP address */ + u_char hw_len; /* length of hardware address */ + u_char hw_addr[0]; /* variable length hardware address */ }; -#ifdef __APPLE_API_PRIVATE -struct kev_in_portinuse { - u_int16_t port; /* conflicting port number in host order */ - u_int32_t req_pid; /* PID port requestor */ - u_int32_t reserved[2]; +struct kev_in_arpfailure { + struct net_event_data link_data; /* link where ARP is being sent */ }; -#endif +struct kev_in_arpalive { + struct net_event_data link_data; /* link where ARP was received */ +}; +#ifdef PRIVATE /* - * Define inet event subclass and specific inet events. + * Common structure for KEV_SOCKET_SUBCLASS + * Have to place here to avoid declaration dependencies. */ +struct kev_socket_event_data { + union sockaddr_in_4_6 kev_sockname; + union sockaddr_in_4_6 kev_peername; +}; -#define KEV_INET_SUBCLASS 1 - -#define KEV_INET_NEW_ADDR 1 -#define KEV_INET_CHANGED_ADDR 2 -#define KEV_INET_ADDR_DELETED 3 -#define KEV_INET_SIFDSTADDR 4 -#define KEV_INET_SIFBRDADDR 5 -#define KEV_INET_SIFNETMASK 6 -#define KEV_INET_ARPCOLLISION 7 /* use kev_in_collision */ +struct kev_socket_closed { + struct kev_socket_event_data ev_data; +}; +#endif /* PRIVATE */ #ifdef __APPLE_API_PRIVATE -#define KEV_INET_PORTINUSE 8 /* use ken_in_portinuse */ -#endif - -#ifdef KERNEL_PRIVATE +struct kev_in_portinuse { + u_int16_t port; /* conflicting port number in host order */ + u_int32_t req_pid; /* PID port requestor */ + u_int32_t reserved[2]; +}; +#endif /* __APPLE_API_PRIVATE */ + +#ifdef BSD_KERNEL_PRIVATE +extern void socket_post_kev_msg(uint32_t, struct kev_socket_event_data *, + uint32_t); +extern void socket_post_kev_msg_closed(struct socket *); + +#include +#include +#include +#include +#include /* * Given a pointer to an in_ifaddr (ifaddr), * return a pointer to the addr as a sockaddr_in. @@ -168,49 +178,57 @@ struct kev_in_portinuse { #define IN_LNAOF(in, ifa) \ ((ntohl((in).s_addr) & ~((struct in_ifaddr *)(ifa)->ia_subnetmask)) -extern TAILQ_HEAD(in_ifaddrhead, in_ifaddr) in_ifaddrhead; -extern struct ifqueue ipintrq; /* ip packet input queue */ -extern struct in_addr zeroin_addr; -extern u_char inetctlerrmap[]; -extern lck_mtx_t *rt_mtx; +/* + * Hash table for IPv4 addresses. + */ +extern TAILQ_HEAD(in_ifaddrhead, in_ifaddr) in_ifaddrhead; +extern TAILQ_HEAD(in_ifaddrhashhead, in_ifaddr) * in_ifaddrhashtbl; +extern lck_rw_t *in_ifaddr_rwlock; -extern int apple_hwcksum_tx; -extern int apple_hwcksum_rx; +#define INADDR_HASH(x) (&in_ifaddrhashtbl[inaddr_hashval(x)]) + +extern u_char inetctlerrmap[]; /* * Macro for finding the interface (ifnet structure) corresponding to one * of our IP addresses. */ -#define INADDR_TO_IFP(addr, ifp) \ - /* struct in_addr addr; */ \ - /* struct ifnet *ifp; */ \ -{ \ - struct in_ifaddr *ia; \ -\ - lck_mtx_assert(rt_mtx, LCK_MTX_ASSERT_NOTOWNED); \ - lck_mtx_lock(rt_mtx); \ - TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) \ - if (IA_SIN(ia)->sin_addr.s_addr == (addr).s_addr) \ - break; \ - (ifp) = (ia == NULL) ? NULL : ia->ia_ifp; \ - lck_mtx_unlock(rt_mtx); \ +#define INADDR_TO_IFP(addr, ifp) \ + /* struct in_addr addr; */ \ + /* struct ifnet *ifp; */ \ +{ \ + struct in_ifaddr *ia; \ + \ + lck_rw_lock_shared(in_ifaddr_rwlock); \ + TAILQ_FOREACH(ia, INADDR_HASH((addr).s_addr), ia_hash) { \ + IFA_LOCK_SPIN(&ia->ia_ifa); \ + if (IA_SIN(ia)->sin_addr.s_addr == (addr).s_addr) { \ + IFA_UNLOCK(&ia->ia_ifa); \ + break; \ + } \ + IFA_UNLOCK(&ia->ia_ifa); \ + } \ + (ifp) = (ia == NULL) ? NULL : ia->ia_ifp; \ + lck_rw_done(in_ifaddr_rwlock); \ } /* * Macro for finding the internet address structure (in_ifaddr) corresponding - * to a given interface (ifnet structure). + * to a given interface (ifnet structure). Caller is responsible for freeing + * the reference. */ -#define IFP_TO_IA(ifp, ia) \ - /* struct ifnet *ifp; */ \ - /* struct in_ifaddr *ia; */ \ -{ \ - lck_mtx_assert(rt_mtx, LCK_MTX_ASSERT_NOTOWNED); \ - lck_mtx_lock(rt_mtx); \ - for ((ia) = TAILQ_FIRST(&in_ifaddrhead); \ - (ia) != NULL && (ia)->ia_ifp != (ifp); \ - (ia) = TAILQ_NEXT((ia), ia_link)) \ - continue; \ - lck_mtx_unlock(rt_mtx); \ +#define IFP_TO_IA(ifp, ia) \ + /* struct ifnet *ifp; */ \ + /* struct in_ifaddr *ia; */ \ +{ \ + lck_rw_lock_shared(in_ifaddr_rwlock); \ + for ((ia) = TAILQ_FIRST(&in_ifaddrhead); \ + (ia) != NULL && (ia)->ia_ifp != (ifp); \ + (ia) = TAILQ_NEXT((ia), ia_link)) \ + continue; \ + if ((ia) != NULL) \ + IFA_ADDREF(&(ia)->ia_ifa); \ + lck_rw_done(in_ifaddr_rwlock); \ } /* @@ -218,31 +236,155 @@ extern int apple_hwcksum_rx; * to change that - as it might break a number of things */ +/* + * Legacy IPv4 IGMP per-link structure. + */ struct router_info { struct ifnet *rti_ifp; int rti_type; /* type of router which is querier on this interface */ int rti_time; /* # of slow timeouts since last old query */ - struct router_info *rti_next; + SLIST_ENTRY(router_info) rti_list; +}; + +/* + * IPv4 multicast IGMP-layer source entry. + */ +struct ip_msource { + RB_ENTRY(ip_msource) ims_link; /* RB tree links */ + in_addr_t ims_haddr; /* host byte order */ + struct ims_st { + uint16_t ex; /* # of exclusive members */ + uint16_t in; /* # of inclusive members */ + } ims_st[2]; /* state at t0, t1 */ + uint8_t ims_stp; /* pending query */ }; /* - * Internet multicast address structure. There is one of these for each IP - * multicast group to which this host belongs on a given network interface. - * For every entry on the interface's if_multiaddrs list which represents - * an IP multicast group, there is one of these structures. They are also - * kept on a system-wide list to make it easier to keep our legacy IGMP code - * compatible with the rest of the world (see IN_FIRST_MULTI et al, below). + * IPv4 multicast PCB-layer source entry. + */ +struct in_msource { + RB_ENTRY(ip_msource) ims_link; /* RB tree links */ + in_addr_t ims_haddr; /* host byte order */ + uint8_t imsl_st[2]; /* state before/at commit */ +}; + +RB_HEAD(ip_msource_tree, ip_msource); /* define struct ip_msource_tree */ + +RB_PROTOTYPE_SC_PREV(__private_extern__, ip_msource_tree, ip_msource, + ims_link, ip_msource_cmp); + +/* + * IPv4 multicast PCB-layer group filter descriptor. + */ +struct in_mfilter { + struct ip_msource_tree imf_sources; /* source list for (S,G) */ + u_long imf_nsrc; /* # of source entries */ + uint8_t imf_st[2]; /* state before/at commit */ +}; + +struct igmp_ifinfo; + +/* + * IPv4 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 IGMPv3 is active, inm_timer is the response to group query timer. + * The state-change timer inm_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: inm_link is now only used when groups are being purged + * on a detaching ifnet. It could be demoted to a SLIST_ENTRY. */ struct in_multi { - LIST_ENTRY(in_multi) inm_link; /* queue macro glue */ - struct in_addr inm_addr; /* IP multicast address, convenience */ - struct ifnet *inm_ifp; /* back pointer to ifnet */ - struct ifmultiaddr *inm_ifma; /* back pointer to ifmultiaddr */ - u_int inm_timer; /* IGMP membership report timer */ - u_int inm_state; /* state of the membership */ - struct router_info *inm_rti; /* router info*/ + decl_lck_mtx_data(, inm_lock); + u_int32_t inm_refcount; /* reference count */ + u_int32_t inm_reqcnt; /* request count for this address */ + u_int32_t inm_debug; /* see ifa_debug flags */ + LIST_ENTRY(in_multi) inm_link; /* queue macro glue */ + struct in_addr inm_addr; /* IP multicast address, convenience */ + struct ifnet *inm_ifp; /* back pointer to ifnet */ + struct ifmultiaddr *inm_ifma; /* back pointer to ifmultiaddr */ + u_int inm_timer; /* IGMPv1/v2 group / v3 query timer */ + u_int inm_state; /* state of the membership */ + void *inm_rti; /* unused, legacy field */ + + /* New fields for IGMPv3 follow. */ + struct igmp_ifinfo *inm_igi; /* IGMP info */ + SLIST_ENTRY(in_multi) inm_dtle; /* detached waiting for rele */ + SLIST_ENTRY(in_multi) inm_nrele; /* to-be-released by IGMP */ + u_int32_t inm_nrelecnt; /* deferred release count */ + struct ip_msource_tree inm_srcs; /* tree of sources */ + u_long inm_nsrc; /* # of tree entries */ + + struct ifqueue inm_scq; /* queue of pending + * state-change packets */ + struct timeval inm_lastgsrtv; /* Time of last G-S-R query */ + uint16_t inm_sctimer; /* state-change timer */ + uint16_t inm_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 IGMPv3 state-change reports. Several refcounts + * are maintained here to optimize for common use-cases. + */ + struct inm_st { + uint16_t iss_fmode; /* IGMP 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 */ + } inm_st[2]; /* state at t0, t1 */ + + void (*inm_trace) /* callback fn for tracing refs */ + (struct in_multi *, int); }; +#define INM_LOCK_ASSERT_HELD(_inm) \ + LCK_MTX_ASSERT(&(_inm)->inm_lock, LCK_MTX_ASSERT_OWNED) + +#define INM_LOCK_ASSERT_NOTHELD(_inm) \ + LCK_MTX_ASSERT(&(_inm)->inm_lock, LCK_MTX_ASSERT_NOTOWNED) + +#define INM_LOCK(_inm) \ + lck_mtx_lock(&(_inm)->inm_lock) + +#define INM_LOCK_SPIN(_inm) \ + lck_mtx_lock_spin(&(_inm)->inm_lock) + +#define INM_CONVERT_LOCK(_inm) do { \ + INM_LOCK_ASSERT_HELD(_inm); \ + lck_mtx_convert_spin(&(_inm)->inm_lock); \ +} while (0) + +#define INM_UNLOCK(_inm) \ + lck_mtx_unlock(&(_inm)->inm_lock) + +#define INM_ADDREF(_inm) \ + inm_addref(_inm, 0) + +#define INM_ADDREF_LOCKED(_inm) \ + inm_addref(_inm, 1) + +#define INM_REMREF(_inm) \ + inm_remref(_inm, 0) + +#define INM_REMREF_LOCKED(_inm) \ + inm_remref(_inm, 1) + #ifdef SYSCTL_DECL SYSCTL_DECL(_net_inet_ip); SYSCTL_DECL(_net_inet_raw); @@ -261,22 +403,36 @@ struct in_multistep { /* * Macro for looking up the in_multi record for a given IP multicast address * on a given interface. If no matching record is found, "inm" is set 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 in_multi records and find it that way. Otherwise either the two + * structures (in_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 in_multihead_lock held. */ -#define IN_LOOKUP_MULTI(addr, ifp, inm) \ - /* struct in_addr addr; */ \ - /* struct ifnet *ifp; */ \ - /* struct in_multi *inm; */ \ -do { \ - struct ifmultiaddr *ifma; \ -\ - LIST_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) { \ - if (ifma->ifma_addr->sa_family == AF_INET \ - && ((struct sockaddr_in *)ifma->ifma_addr)->sin_addr.s_addr == \ - (addr).s_addr) \ - break; \ - } \ - (inm) = ifma ? ifma->ifma_protospec : NULL; \ -} while(0) +#define IN_LOOKUP_MULTI(addr, ifp, inm) \ + /* struct in_addr *addr; */ \ + /* struct ifnet *ifp; */ \ + /* struct in_multi *inm; */ \ +do { \ + struct in_multistep _step; \ + IN_FIRST_MULTI(_step, inm); \ + while ((inm) != NULL) { \ + INM_LOCK_SPIN(inm); \ + if ((inm)->inm_ifp == (ifp) && \ + (inm)->inm_addr.s_addr == (addr)->s_addr) { \ + INM_ADDREF_LOCKED(inm); \ + INM_UNLOCK(inm); \ + break; \ + } \ + INM_UNLOCK(inm); \ + IN_NEXT_MULTI(_step, inm); \ + } \ +} while (0) /* * Macro to step through all of the in_multi records, one at a time. @@ -284,39 +440,95 @@ do { \ * provide. IN_FIRST_MULTI(), below, must be called to initialize "step" * and get the first record. Both macros return a NULL "inm" when there * are no remaining records. + * + * Must be called with in_multihead_lock held. + */ +#define IN_NEXT_MULTI(step, inm) \ + /* struct in_multistep step; */ \ + /* struct in_multi *inm; */ \ +do { \ + in_multihead_lock_assert(LCK_RW_ASSERT_HELD); \ + if (((inm) = (step).i_inm) != NULL) \ + (step).i_inm = LIST_NEXT((step).i_inm, inm_link); \ +} while (0) + +#define IN_FIRST_MULTI(step, inm) \ + /* struct in_multistep step; */ \ + /* struct in_multi *inm; */ \ +do { \ + in_multihead_lock_assert(LCK_RW_ASSERT_HELD); \ + (step).i_inm = LIST_FIRST(&in_multihead); \ + IN_NEXT_MULTI((step), (inm)); \ +} while (0) + +extern lck_mtx_t *inet_domain_mutex; +extern struct domain *inetdomain; + +struct ip_moptions; +struct inpcb; + +/* + * Return values for imo_multi_filter(). */ -#define IN_NEXT_MULTI(step, inm) \ - /* struct in_multistep step; */ \ - /* struct in_multi *inm; */ \ -do { \ - if (((inm) = (step).i_inm) != NULL) \ - (step).i_inm = LIST_NEXT((step).i_inm, inm_link); \ -} while(0) - -#define IN_FIRST_MULTI(step, inm) \ - /* struct in_multistep step; */ \ - /* struct in_multi *inm; */ \ -do { \ - (step).i_inm = LIST_FIRST(&in_multihead); \ - IN_NEXT_MULTI((step), (inm)); \ -} while(0) - -struct route; -struct in_multi *in_addmulti(struct in_addr *, struct ifnet *); -void in_delmulti(struct in_multi **); -int in_control(struct socket *, u_long, caddr_t, struct ifnet *, - struct proc *); -void in_rtqdrain(void); -void ip_input(struct mbuf *); -int in_ifadown(struct ifaddr *ifa, int); -void in_ifscrub(struct ifnet *, struct in_ifaddr *, int); -int ipflow_fastforward(struct mbuf *); -void ipflow_create(const struct route *, struct mbuf *); -void ipflow_slowtimo(void); - -#endif /* KERNEL_PRIVATE */ +#define MCAST_PASS 0 /* Pass */ +#define MCAST_NOTGMEMBER 1 /* This host not a member of group */ +#define MCAST_NOTSMEMBER 2 /* This host excluded source */ +#define MCAST_MUTED 3 /* [deprecated] */ +/* + * Per-interface IPv4 structures. + */ +struct in_ifextra { + uint32_t netsig_len; + u_int8_t netsig[IFNET_SIGNATURELEN]; + struct lltable *ii_llt; /* ARP state */ +}; +#define IN_IFEXTRA(_ifp) ((struct in_ifextra *)(_ifp->if_inetdata)) +#define LLTABLE(ifp) ((IN_IFEXTRA(ifp) == NULL) ? NULL : IN_IFEXTRA(ifp)->ii_llt) + +extern u_int32_t ipv4_ll_arp_aware; + +extern void in_ifaddr_init(void); +extern int imo_multi_filter(const struct ip_moptions *, + const struct ifnet *, const struct sockaddr_in *, + const struct sockaddr_in *); +extern int imo_clone(struct inpcb *, struct inpcb *); +extern void inm_commit(struct in_multi *); +extern void inm_clear_recorded(struct in_multi *); +extern void inm_print(const struct in_multi *); +extern int inm_record_source(struct in_multi *inm, const in_addr_t); +extern void inm_release(struct in_multi *); +extern void in_multi_init(void); +extern struct in_multi *in_addmulti(struct in_addr *, struct ifnet *); +extern void in_delmulti(struct in_multi *); +extern int in_leavegroup(struct in_multi *, struct in_mfilter *); +extern int in_multi_detach(struct in_multi *); +extern void inm_addref(struct in_multi *, int); +extern void inm_remref(struct in_multi *, int); +extern void inm_purge(struct in_multi *); +extern uint8_t ims_get_mode(const struct in_multi *, + const struct ip_msource *, uint8_t); +extern int in_control(struct socket *, u_long, caddr_t, struct ifnet *, + struct proc *); +extern int in_inithead(void **, int); +extern void in_rtqdrain(void); +extern struct radix_node *in_validate(struct radix_node *); +extern void ip_input(struct mbuf *); +extern void ip_input_process_list(struct mbuf *); +extern int in_ifadown(struct ifaddr *ifa, int); +extern void in_ifscrub(struct ifnet *, struct in_ifaddr *, int); +extern u_int32_t inaddr_hashval(u_int32_t); +extern void in_purgeaddrs(struct ifnet *); +extern void gre_input(struct mbuf *, int); +extern void imf_leave(struct in_mfilter *); +extern void imf_purge(struct in_mfilter *); +extern int inp_join_group(struct inpcb *, struct sockopt *); +extern int inp_leave_group(struct inpcb *, struct sockopt *); +extern void in_multihead_lock_exclusive(void); +extern void in_multihead_lock_shared(void); +extern void in_multihead_lock_assert(int); +extern void in_multihead_lock_done(void); +#endif /* BSD_KERNEL_PRIVATE */ /* INET6 stuff */ #include - #endif /* _NETINET_IN_VAR_H_ */