/* $KAME: sctp_pcb.h,v 1.19 2004/08/17 06:28:02 t-momose Exp $ */ /* $DragonFly: src/sys/netinet/sctp_pcb.h,v 1.3 2006/05/20 02:42:12 dillon Exp $ */ /* * Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc. * 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 Cisco Systems, Inc. * 4. 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 CISCO SYSTEMS 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 CISCO SYSTEMS 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. */ #ifndef _NETINET_SCTP_PCB_H_ #define _NETINET_SCTP_PCB_H_ #ifndef _NETINET_IN_PCB_H_ #include #endif /* * We must have V6 so the size of the proto can be calculated. Otherwise * we would not allocate enough for Net/Open BSD :-< */ #if defined(__FreeBSD__) && __FreeBSD_version > 500000 #include #endif #include #ifdef __FreeBSD__ #include #endif #include #include #include #include #if defined(__OpenBSD__) #include #else #include #endif #if defined(__OpenBSD__) || defined(__FreeBSD__) #ifndef in6pcb #define in6pcb inpcb #endif #endif #include #include LIST_HEAD(sctppcbhead, sctp_inpcb); LIST_HEAD(sctpasochead, sctp_tcb); TAILQ_HEAD(sctpsocketq, sctp_socket_q_list); LIST_HEAD(sctpvtaghead, sctp_tagblock); #include #include /* * PCB flags */ #define SCTP_PCB_FLAGS_UDPTYPE 0x00000001 #define SCTP_PCB_FLAGS_TCPTYPE 0x00000002 #define SCTP_PCB_FLAGS_BOUNDALL 0x00000004 #define SCTP_PCB_FLAGS_ACCEPTING 0x00000008 #define SCTP_PCB_FLAGS_UNBOUND 0x00000010 #define SCTP_PCB_FLAGS_DO_ASCONF 0x00000020 #define SCTP_PCB_FLAGS_AUTO_ASCONF 0x00000040 /* socket options */ #define SCTP_PCB_FLAGS_NODELAY 0x00000100 #define SCTP_PCB_FLAGS_AUTOCLOSE 0x00000200 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT 0x00000400 #define SCTP_PCB_FLAGS_RECVASSOCEVNT 0x00000800 #define SCTP_PCB_FLAGS_RECVPADDREVNT 0x00001000 #define SCTP_PCB_FLAGS_RECVPEERERR 0x00002000 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT 0x00004000 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT 0x00008000 #define SCTP_PCB_FLAGS_ADAPTIONEVNT 0x00010000 #define SCTP_PCB_FLAGS_PDAPIEVNT 0x00020000 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x00040000 #define SCTP_PCB_FLAGS_NO_FRAGMENT 0x00080000 /* TCP model support */ #define SCTP_PCB_FLAGS_CONNECTED 0x00100000 #define SCTP_PCB_FLAGS_IN_TCPPOOL 0x00200000 #define SCTP_PCB_FLAGS_DONT_WAKE 0x00400000 #define SCTP_PCB_FLAGS_WAKEOUTPUT 0x00800000 #define SCTP_PCB_FLAGS_WAKEINPUT 0x01000000 #define SCTP_PCB_FLAGS_BOUND_V6 0x02000000 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4 0x04000000 #define SCTP_PCB_FLAGS_BLOCKING_IO 0x08000000 #define SCTP_PCB_FLAGS_SOCKET_GONE 0x10000000 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE 0x20000000 /* flags to copy to new PCB */ #define SCTP_PCB_COPY_FLAGS 0x0707ff64 #define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask) #define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask) struct sctp_laddr { LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */ struct ifaddr *ifa; }; struct sctp_timewait { uint32_t tv_sec_at_expire; /* the seconds from boot to expire */ uint32_t v_tag; /* the vtag that can not be reused */ }; struct sctp_tagblock { LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; }; struct sctp_epinfo { struct sctpasochead *sctp_asochash; u_long hashasocmark; struct sctppcbhead *sctp_ephash; u_long hashmark; /* * The TCP model represents a substantial overhead in that we get * an additional hash table to keep explicit connections in. The * listening TCP endpoint will exist in the usual ephash above and * accept only INIT's. It will be incapable of sending off an INIT. * When a dg arrives we must look in the normal ephash. If we find * a TCP endpoint that will tell us to go to the specific endpoint * hash and re-hash to find the right assoc/socket. If we find a * UDP model socket we then must complete the lookup. If this fails, * i.e. no association can be found then we must continue to see if * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket * acts like a TCP model connected socket). */ struct sctppcbhead *sctp_tcpephash; u_long hashtcpmark; uint32_t hashtblsize; struct sctppcbhead listhead; struct sctpiterators iteratorhead; /* ep zone info */ #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__) #if __FreeBSD_version >= 500000 struct uma_zone *ipi_zone_ep; struct uma_zone *ipi_zone_asoc; struct uma_zone *ipi_zone_laddr; struct uma_zone *ipi_zone_net; struct uma_zone *ipi_zone_chunk; struct uma_zone *ipi_zone_sockq; #else struct vm_zone *ipi_zone_ep; struct vm_zone *ipi_zone_asoc; struct vm_zone *ipi_zone_laddr; struct vm_zone *ipi_zone_net; struct vm_zone *ipi_zone_chunk; struct vm_zone *ipi_zone_sockq; #endif #endif #if defined(__NetBSD__) || defined(__OpenBSD__) struct pool ipi_zone_ep; struct pool ipi_zone_asoc; struct pool ipi_zone_laddr; struct pool ipi_zone_net; struct pool ipi_zone_chunk; struct pool ipi_zone_sockq; #endif #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 struct mtx ipi_ep_mtx; struct mtx it_mtx; #endif u_int ipi_count_ep; u_quad_t ipi_gencnt_ep; /* assoc/tcb zone info */ u_int ipi_count_asoc; u_quad_t ipi_gencnt_asoc; /* local addrlist zone info */ u_int ipi_count_laddr; u_quad_t ipi_gencnt_laddr; /* remote addrlist zone info */ u_int ipi_count_raddr; u_quad_t ipi_gencnt_raddr; /* chunk structure list for output */ u_int ipi_count_chunk; u_quad_t ipi_gencnt_chunk; /* socket queue zone info */ u_int ipi_count_sockq; u_quad_t ipi_gencnt_sockq; struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; #ifdef _SCTP_NEEDS_CALLOUT_ struct calloutlist callqueue; #endif /* _SCTP_NEEDS_CALLOUT_ */ uint32_t mbuf_track; /* for port allocations */ uint16_t lastport; uint16_t lastlow; uint16_t lasthi; }; extern uint32_t sctp_pegs[SCTP_NUMBER_OF_PEGS]; /* * Here we have all the relevant information for each SCTP entity created. * We will need to modify this as approprate. We also need to figure out * how to access /dev/random. */ struct sctp_pcb { unsigned int time_of_secret_change; /* number of seconds from timeval.tv_sec */ uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS]; unsigned int size_of_a_cookie; unsigned int sctp_timeoutticks[SCTP_NUM_TMRS]; unsigned int sctp_minrto; unsigned int sctp_maxrto; unsigned int initial_rto; int initial_init_rto_max; uint32_t sctp_sws_sender; uint32_t sctp_sws_receiver; /* various thresholds */ /* Max times I will init at a guy */ uint16_t max_init_times; /* Max times I will send before we consider someone dead */ uint16_t max_send_times; uint16_t def_net_failure; /* number of streams to pre-open on a association */ uint16_t pre_open_stream_count; uint16_t max_open_streams_intome; /* random number generator */ uint32_t random_counter; uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE]; uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE]; /* * This timer is kept running per endpoint. When it fires it * will change the secret key. The default is once a hour */ struct sctp_timer signature_change; int def_cookie_life; /* defaults to 0 */ int auto_close_time; uint32_t initial_sequence_debug; uint32_t adaption_layer_indicator; char store_at; uint8_t max_burst; char current_secret_number; char last_secret_number; }; #ifndef SCTP_ALIGNMENT #define SCTP_ALIGNMENT 32 #endif #ifndef SCTP_ALIGNM1 #define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1) #endif #define sctp_lport ip_inp.inp.inp_lport struct sctp_socket_q_list { struct sctp_tcb *tcb; TAILQ_ENTRY(sctp_socket_q_list) next_sq; }; struct sctp_inpcb { /* * put an inpcb in front of it all, kind of a waste but we need * to for compatability with all the other stuff. */ union { struct inpcb inp; char align[(sizeof(struct in6pcb) + SCTP_ALIGNM1) & ~SCTP_ALIGNM1]; } ip_inp; LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */ /* hash of all endpoints for model */ LIST_ENTRY(sctp_inpcb) sctp_hash; /* count of local addresses bound, 0 if bound all */ int laddr_count; /* list of addrs in use by the EP */ struct sctpladdr sctp_addr_list; /* used for source address selection rotation */ struct sctp_laddr *next_addr_touse; struct ifnet *next_ifn_touse; /* back pointer to our socket */ struct socket *sctp_socket; uint32_t sctp_flags; /* flag set */ struct sctp_pcb sctp_ep; /* SCTP ep data */ /* head of the hash of all associations */ struct sctpasochead *sctp_tcbhash; u_long sctp_hashmark; /* head of the list of all associations */ struct sctpasochead sctp_asoc_list; /* queue of TCB's waiting to stuff data up the socket */ struct sctpsocketq sctp_queue_list; void *sctp_tcb_at_block; struct sctp_iterator *inp_starting_point_for_iterator; int error_on_block; uint32_t sctp_frag_point; uint32_t sctp_vtag_first; struct mbuf *pkt, *pkt_last, *sb_last_mpkt; struct mbuf *control; #if !(defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__)) #ifndef INP_IPV6 #define INP_IPV6 0x1 #endif #ifndef INP_IPV4 #define INP_IPV4 0x2 #endif u_char inp_vflag; u_char inp_ip_ttl; u_char inp_ip_tos; u_char inp_ip_resv; #endif #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 struct mtx inp_mtx; struct mtx inp_create_mtx; u_int32_t refcount; #endif }; struct sctp_tcb { struct socket *sctp_socket; /* back pointer to socket */ struct sctp_inpcb *sctp_ep; /* back pointer to ep */ LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash table */ LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the TCB's */ LIST_ENTRY(sctp_tcb) sctp_asocs; struct sctp_association asoc; uint16_t rport; /* remote port in network format */ uint16_t resv; #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 struct mtx tcb_mtx; #endif }; #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 /* General locking concepts: * The goal of our locking is to of course provide * consistency and yet minimize overhead. We will * attempt to use non-recursive locks which are supposed * to be quite inexpensive. Now in order to do this the goal * is that most functions are not aware of locking. Once we * have a TCB we lock it and unlock when we are through. This * means that the TCB lock is kind-of a "global" lock when * working on an association. Caution must be used when * asserting a TCB_LOCK since if we recurse we deadlock. * * Most other locks (INP and INFO) attempt to localize * the locking i.e. we try to contain the lock and * unlock within the function that needs to lock it. This * sometimes mean we do extra locks and unlocks and loose * a bit of efficency, but if the performance statements about * non-recursive locks are true this should not be a problem. * One issue that arises with this only lock when needed * is that if an implicit association setup is done we * have a problem. If at the time I lookup an association * I have NULL in the tcb return, by the time I call to * create the association some other processor could * have created it. This is what the CREATE lock on * the endpoint. Places where we will be implicitly * creating the association OR just creating an association * (the connect call) will assert the CREATE_INP lock. This * will assure us that during all the lookup of INP and INFO * if another creator is also locking/looking up we can * gate the two to synchronize. So the CREATE_INP lock is * also another one we must use extreme caution in locking * to make sure we don't hit a re-entrancy issue. * * For non FreeBSD 5.x and above we provide a bunch * of EMPTY lock macro's so we can blatantly put locks * everywhere and they reduce to nothing on NetBSD/OpenBSD * and FreeBSD 4.x * */ /* When working with the global SCTP lists we lock and unlock * the INP_INFO lock. So when we go to lookup an association * we will want to do a SCTP_INP_INFO_RLOCK() and then when * we want to add a new association to the sctppcbinfo list's * we will do a SCTP_INP_INFO_WLOCK(). */ /* * FIX ME, all locks right now have a * recursive check/panic to validate that I * don't have any lock recursion going on. */ #define SCTP_INP_INFO_LOCK_INIT() \ mtx_init(&sctppcbinfo.ipi_ep_mtx, "sctp", "inp_info", MTX_DEF) #ifdef xyzzy #define SCTP_INP_INFO_RLOCK() do { \ if (mtx_owned(&sctppcbinfo.ipi_ep_mtx)) \ panic("INP INFO Recursive Lock-R"); \ mtx_lock(&sctppcbinfo.ipi_ep_mtx); \ } while (0) #define SCTP_INP_INFO_WLOCK() do { \ if (mtx_owned(&sctppcbinfo.ipi_ep_mtx)) \ panic("INP INFO Recursive Lock-W"); \ mtx_lock(&sctppcbinfo.ipi_ep_mtx); \ } while (0) #else void SCTP_INP_INFO_RLOCK(void); void SCTP_INP_INFO_WLOCK(void); #endif #define SCTP_INP_INFO_RUNLOCK() mtx_unlock(&sctppcbinfo.ipi_ep_mtx) #define SCTP_INP_INFO_WUNLOCK() mtx_unlock(&sctppcbinfo.ipi_ep_mtx) /* The INP locks we will use for locking an SCTP endpoint, so for * example if we want to change something at the endpoint level for * example random_store or cookie secrets we lock the INP level. */ #define SCTP_INP_LOCK_INIT(_inp) \ mtx_init(&(_inp)->inp_mtx, "sctp", "inp", MTX_DEF | MTX_DUPOK) #define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \ mtx_init(&(_inp)->inp_create_mtx, "sctp", "inp_create", \ MTX_DEF | MTX_DUPOK) #define SCTP_INP_LOCK_DESTROY(_inp) mtx_destroy(&(_inp)->inp_mtx) #define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) mtx_destroy(&(_inp)->inp_create_mtx) #ifdef xyzzy #define SCTP_INP_RLOCK(_inp) do { \ struct sctp_tcb *xx_stcb; \ xx_stcb = LIST_FIRST(&_inp->sctp_asoc_list); \ if (xx_stcb) \ if (mtx_owned(&(xx_stcb)->tcb_mtx)) \ panic("I own TCB lock?"); \ if (mtx_owned(&(_inp)->inp_mtx)) \ panic("INP Recursive Lock-R"); \ mtx_lock(&(_inp)->inp_mtx); \ } while (0) #define SCTP_INP_WLOCK(_inp) do { \ struct sctp_tcb *xx_stcb; \ xx_stcb = LIST_FIRST(&_inp->sctp_asoc_list); \ if (xx_stcb) \ if (mtx_owned(&(xx_stcb)->tcb_mtx)) \ panic("I own TCB lock?"); \ if (mtx_owned(&(_inp)->inp_mtx)) \ panic("INP Recursive Lock-W"); \ mtx_lock(&(_inp)->inp_mtx); \ } while (0) #else void SCTP_INP_RLOCK(struct sctp_inpcb *); void SCTP_INP_WLOCK(struct sctp_inpcb *); #endif #define SCTP_INP_INCR_REF(_inp) _inp->refcount++ #define SCTP_INP_DECR_REF(_inp) do { \ if (_inp->refcount > 0) \ _inp->refcount--; \ else \ panic("bad inp refcount"); \ }while (0) #define SCTP_ASOC_CREATE_LOCK(_inp) do { \ if (mtx_owned(&(_inp)->inp_create_mtx)) \ panic("INP Recursive CREATE"); \ mtx_lock(&(_inp)->inp_create_mtx); \ } while (0) #define SCTP_INP_RUNLOCK(_inp) mtx_unlock(&(_inp)->inp_mtx) #define SCTP_INP_WUNLOCK(_inp) mtx_unlock(&(_inp)->inp_mtx) #define SCTP_ASOC_CREATE_UNLOCK(_inp) mtx_unlock(&(_inp)->inp_create_mtx) /* For the majority of things (once we have found the association) we * will lock the actual association mutex. This will protect all * the assoiciation level queues and streams and such. We will * need to lock the socket layer when we stuff data up into * the receiving sb_mb. I.e. we will need to do an extra * SOCKBUF_LOCK(&so->so_rcv) even though the association is * locked. */ #define SCTP_TCB_LOCK_INIT(_tcb) \ mtx_init(&(_tcb)->tcb_mtx, "sctp", "tcb", MTX_DEF | MTX_DUPOK) #define SCTP_TCB_LOCK_DESTROY(_tcb) mtx_destroy(&(_tcb)->tcb_mtx) #define SCTP_TCB_LOCK(_tcb) do { \ if (!mtx_owned(&(_tcb->sctp_ep->inp_mtx))) \ panic("TCB locking and no INP lock"); \ if (mtx_owned(&(_tcb)->tcb_mtx)) \ panic("TCB Lock-recursive"); \ mtx_lock(&(_tcb)->tcb_mtx); \ } while (0) #define SCTP_TCB_UNLOCK(_tcb) mtx_unlock(&(_tcb)->tcb_mtx) #define SCTP_ITERATOR_LOCK_INIT() \ mtx_init(&sctppcbinfo.it_mtx, "sctp", "iterator", MTX_DEF) #define SCTP_ITERATOR_LOCK() do { \ if (mtx_owned(&sctppcbinfo.it_mtx)) \ panic("Iterator Lock"); \ mtx_lock(&sctppcbinfo.it_mtx); \ } while (0) #define SCTP_ITERATOR_UNLOCK() mtx_unlock(&sctppcbinfo.it_mtx) #define SCTP_ITERATOR_LOCK_DESTROY() mtx_destroy(&sctppcbinfo.it_mtx) #else /* Empty Lock declarations for all other * platforms pre-process away to nothing. */ /* Lock for INFO stuff */ #define SCTP_INP_INFO_LOCK_INIT() #define SCTP_INP_INFO_RLOCK() #define SCTP_INP_INFO_RLOCK() #define SCTP_INP_INFO_WLOCK() #define SCTP_INP_INFO_RUNLOCK() #define SCTP_INP_INFO_WUNLOCK() /* Lock for INP */ #define SCTP_INP_LOCK_INIT(_inp) #define SCTP_INP_LOCK_DESTROY(_inp) #define SCTP_INP_RLOCK(_inp) #define SCTP_INP_RUNLOCK(_inp) #define SCTP_INP_WLOCK(_inp) #define SCTP_INP_INCR_REF(_inp) #define SCTP_INP_DECR_REF(_inp) #define SCTP_INP_WUNLOCK(_inp) #define SCTP_ASOC_CREATE_LOCK_INIT(_inp) #define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) #define SCTP_ASOC_CREATE_LOCK(_inp) #define SCTP_ASOC_CREATE_UNLOCK(_inp) /* Lock for TCB */ #define SCTP_TCB_LOCK_INIT(_tcb) #define SCTP_TCB_LOCK_DESTROY(_tcb) #define SCTP_TCB_LOCK(_tcb) #define SCTP_TCB_UNLOCK(_tcb) /* socket locks that are not here in other than 5.3 > FreeBSD*/ #define SOCK_LOCK(_so) #define SOCK_UNLOCK(_so) #define SOCKBUF_LOCK(_so_buf) #define SOCKBUF_UNLOCK(_so_buf) /* iterator locks */ #define SCTP_ITERATOR_LOCK_INIT() #define SCTP_ITERATOR_LOCK() #define SCTP_ITERATOR_UNLOCK() #define SCTP_ITERATOR_LOCK_DESTROY() #endif #if defined(_KERNEL) || (defined(__APPLE__) && defined(KERNEL)) extern struct sctp_epinfo sctppcbinfo; extern int sctp_auto_asconf; int SCTP6_ARE_ADDR_EQUAL(struct in6_addr *a, struct in6_addr *b); void sctp_fill_pcbinfo(struct sctp_pcbinfo *); struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int); #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__) int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct thread *); #else int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct proc *); #endif struct sctp_tcb *sctp_findassociation_addr(struct mbuf *, int, int, struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, struct sctp_nets **); struct sctp_tcb *sctp_findassociation_addr_sa(struct sockaddr *, struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int); void sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *, struct sctp_tcb *); /* * For this call ep_addr, the to is the destination endpoint address * of the peer (relative to outbound). The from field is only used if * the TCP model is enabled and helps distingush amongst the subset * bound (non-boundall). The TCP model MAY change the actual ep field, * this is why it is passed. */ struct sctp_tcb *sctp_findassociation_ep_addr(struct sctp_inpcb **, struct sockaddr *, struct sctp_nets **, struct sockaddr *, struct sctp_tcb *); struct sctp_tcb *sctp_findassociation_ep_asocid(struct sctp_inpcb *, caddr_t); struct sctp_tcb *sctp_findassociation_ep_asconf(struct mbuf *, int, int, struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **); int sctp_inpcb_alloc(struct socket *); int sctp_is_address_on_local_host(struct sockaddr *addr); void sctp_inpcb_free(struct sctp_inpcb *, int); struct sctp_tcb *sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int, int *, uint32_t); void sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *); int sctp_add_local_addr_ep(struct sctp_inpcb *, struct ifaddr *); int sctp_insert_laddr(struct sctpladdr *, struct ifaddr *); void sctp_remove_laddr(struct sctp_laddr *); int sctp_del_local_addr_ep(struct sctp_inpcb *, struct ifaddr *); int sctp_del_local_addr_ep_sa(struct sctp_inpcb *, struct sockaddr *); int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, int, int); int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); void sctp_pcb_init(void); void sctp_free_remote_addr(struct sctp_nets *); int sctp_add_local_addr_assoc(struct sctp_tcb *, struct ifaddr *); int sctp_del_local_addr_assoc(struct sctp_tcb *, struct ifaddr *); int sctp_del_local_addr_assoc_sa(struct sctp_tcb *, struct sockaddr *); int sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, int, struct sctphdr *, struct sockaddr *); int sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets *); int sctp_is_vtag_good(struct sctp_inpcb *, uint32_t, struct timeval *); /*void sctp_drain(void);*/ int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); int sctp_add_to_socket_q(struct sctp_inpcb *, struct sctp_tcb *); struct sctp_tcb *sctp_remove_from_socket_q(struct sctp_inpcb *); /* Null in last arg inpcb indicate run on ALL ep's. Specific * inp in last arg indicates run on ONLY assoc's of the * specified endpoint. */ int sctp_initiate_iterator(asoc_func af, uint32_t, uint32_t, void *, uint32_t, end_func ef, struct sctp_inpcb *); #if defined(__APPLE__) void sctp_callout_alloc(struct sctp_timer *); void sctp_callout_free(struct callout *); #endif #ifdef __NetBSD__ extern void in6_sin6_2_sin (struct sockaddr_in *, struct sockaddr_in6 *sin6); #endif #endif /* _KERNEL */ #endif /* _NETINET_SCTP_PCB_H_ */