/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * a) Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * b) 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. * * c) Neither the name of Cisco Systems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. */ #ifdef __FreeBSD__ #include __FBSDID("$FreeBSD: head/sys/netinet/sctp_pcb.h 354018 2019-10-24 09:22:23Z tuexen $"); #endif #ifndef _NETINET_SCTP_PCB_H_ #define _NETINET_SCTP_PCB_H_ #include #include #include #include LIST_HEAD(sctppcbhead, sctp_inpcb); LIST_HEAD(sctpasochead, sctp_tcb); LIST_HEAD(sctpladdr, sctp_laddr); LIST_HEAD(sctpvtaghead, sctp_tagblock); LIST_HEAD(sctp_vrflist, sctp_vrf); LIST_HEAD(sctp_ifnlist, sctp_ifn); LIST_HEAD(sctp_ifalist, sctp_ifa); TAILQ_HEAD(sctp_readhead, sctp_queued_to_read); TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending); #include #include #define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask) #define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask) struct sctp_vrf { LIST_ENTRY (sctp_vrf) next_vrf; struct sctp_ifalist *vrf_addr_hash; struct sctp_ifnlist ifnlist; uint32_t vrf_id; uint32_t tbl_id_v4; /* default v4 table id */ uint32_t tbl_id_v6; /* default v6 table id */ uint32_t total_ifa_count; u_long vrf_addr_hashmark; uint32_t refcount; }; struct sctp_ifn { struct sctp_ifalist ifalist; struct sctp_vrf *vrf; LIST_ENTRY(sctp_ifn) next_ifn; LIST_ENTRY(sctp_ifn) next_bucket; void *ifn_p; /* never access without appropriate lock */ uint32_t ifn_mtu; uint32_t ifn_type; uint32_t ifn_index; /* shorthand way to look at ifn for reference */ uint32_t refcount; /* number of reference held should be >= ifa_count */ uint32_t ifa_count; /* IFA's we hold (in our list - ifalist)*/ uint32_t num_v6; /* number of v6 addresses */ uint32_t num_v4; /* number of v4 addresses */ uint32_t registered_af; /* registered address family for i/f events */ char ifn_name[SCTP_IFNAMSIZ]; }; /* SCTP local IFA flags */ #define SCTP_ADDR_VALID 0x00000001 /* its up and active */ #define SCTP_BEING_DELETED 0x00000002 /* being deleted, * when refcount = 0. Note * that it is pulled from the ifn list * and ifa_p is nulled right away but * it cannot be freed until the last *net * pointing to it is deleted. */ #define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */ #define SCTP_ADDR_IFA_UNUSEABLE 0x00000008 struct sctp_ifa { LIST_ENTRY(sctp_ifa) next_ifa; LIST_ENTRY(sctp_ifa) next_bucket; struct sctp_ifn *ifn_p; /* back pointer to parent ifn */ void *ifa; /* pointer to ifa, needed for flag * update for that we MUST lock * appropriate locks. This is for V6. */ union sctp_sockstore address; uint32_t refcount; /* number of folks referring to this */ uint32_t flags; uint32_t localifa_flags; uint32_t vrf_id; /* vrf_id of this addr (for deleting) */ uint8_t src_is_loop; uint8_t src_is_priv; uint8_t src_is_glob; uint8_t resv; }; struct sctp_laddr { LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */ struct sctp_ifa *ifa; uint32_t action; /* Used during asconf and adding * if no-zero src-addr selection will * not consider this address. */ struct timeval start_time; /* time when this address was created */ }; struct sctp_block_entry { int error; }; 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 */ uint16_t lport; /* the local port used in vtag */ uint16_t rport; /* the remote port used in vtag */ }; struct sctp_tagblock { LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; }; struct sctp_epinfo { #if defined(__FreeBSD__) #ifdef INET struct socket *udp4_tun_socket; #endif #ifdef INET6 struct socket *udp6_tun_socket; #endif #endif 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 sctp_vrflist *sctp_vrfhash; u_long hashvrfmark; struct sctp_ifnlist *vrf_ifn_hash; u_long vrf_ifn_hashmark; struct sctppcbhead listhead; struct sctpladdr addr_wq; #if defined(__APPLE__) struct inpcbhead inplisthead; struct inpcbinfo sctbinfo; #endif /* ep zone info */ sctp_zone_t ipi_zone_ep; sctp_zone_t ipi_zone_asoc; sctp_zone_t ipi_zone_laddr; sctp_zone_t ipi_zone_net; sctp_zone_t ipi_zone_chunk; sctp_zone_t ipi_zone_readq; sctp_zone_t ipi_zone_strmoq; sctp_zone_t ipi_zone_asconf; sctp_zone_t ipi_zone_asconf_ack; #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 #if __FreeBSD_version <= 602000 struct mtx ipi_ep_mtx; #else struct rwlock ipi_ep_mtx; #endif struct mtx ipi_iterator_wq_mtx; #if __FreeBSD_version <= 602000 struct mtx ipi_addr_mtx; #else struct rwlock ipi_addr_mtx; #endif struct mtx ipi_pktlog_mtx; struct mtx wq_addr_mtx; #elif defined(SCTP_PROCESS_LEVEL_LOCKS) userland_mutex_t ipi_ep_mtx; userland_mutex_t ipi_addr_mtx; userland_mutex_t ipi_count_mtx; userland_mutex_t ipi_pktlog_mtx; userland_mutex_t wq_addr_mtx; #elif defined(__APPLE__) #ifdef _KERN_LOCKS_H_ lck_mtx_t *ipi_addr_mtx; lck_mtx_t *ipi_count_mtx; lck_mtx_t *ipi_pktlog_mtx; lck_mtx_t *logging_mtx; lck_mtx_t *wq_addr_mtx; #else void *ipi_count_mtx; void *logging_mtx; #endif /* _KERN_LOCKS_H_ */ #elif defined(__Windows__) struct rwlock ipi_ep_lock; struct rwlock ipi_addr_lock; struct spinlock ipi_pktlog_mtx; struct rwlock wq_addr_mtx; #elif defined(__Userspace__) /* TODO decide on __Userspace__ locks */ #endif uint32_t ipi_count_ep; /* assoc/tcb zone info */ uint32_t ipi_count_asoc; /* local addrlist zone info */ uint32_t ipi_count_laddr; /* remote addrlist zone info */ uint32_t ipi_count_raddr; /* chunk structure list for output */ uint32_t ipi_count_chunk; /* socket queue zone info */ uint32_t ipi_count_readq; /* socket queue zone info */ uint32_t ipi_count_strmoq; /* Number of vrfs */ uint32_t ipi_count_vrfs; /* Number of ifns */ uint32_t ipi_count_ifns; /* Number of ifas */ uint32_t ipi_count_ifas; /* system wide number of free chunks hanging around */ uint32_t ipi_free_chunks; uint32_t ipi_free_strmoq; struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; /* address work queue handling */ struct sctp_timer addr_wq_timer; #if defined(_SCTP_NEEDS_CALLOUT_) || defined(_USER_SCTP_NEEDS_CALLOUT_) struct calloutlist callqueue; #endif }; struct sctp_base_info { /* All static structures that * anchor the system must be here. */ struct sctp_epinfo sctppcbinfo; #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT) struct sctpstat *sctpstat; #else struct sctpstat sctpstat; #endif struct sctp_sysctl sctpsysctl; uint8_t first_time; char sctp_pcb_initialized; #if defined(SCTP_PACKET_LOGGING) int packet_log_writers; int packet_log_end; uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE]; #endif #if defined(__FreeBSD__) eventhandler_tag eh_tag; #endif #if defined(__APPLE__) int sctp_main_timer_ticks; #endif #if defined(__Userspace__) userland_mutex_t timer_mtx; userland_thread_t timer_thread; int timer_thread_should_exit; #if !defined(__Userspace_os_Windows) pthread_mutexattr_t mtx_attr; #if defined(INET) || defined(INET6) int userspace_route; userland_thread_t recvthreadroute; #endif #endif #ifdef INET #if defined(__Userspace_os_Windows) && !defined(__MINGW32__) SOCKET userspace_rawsctp; SOCKET userspace_udpsctp; #else int userspace_rawsctp; int userspace_udpsctp; #endif userland_thread_t recvthreadraw; userland_thread_t recvthreadudp; #endif #ifdef INET6 #if defined(__Userspace_os_Windows) && !defined(__MINGW32__) SOCKET userspace_rawsctp6; SOCKET userspace_udpsctp6; #else int userspace_rawsctp6; int userspace_udpsctp6; #endif userland_thread_t recvthreadraw6; userland_thread_t recvthreadudp6; #endif int (*conn_output)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df); void (*debug_printf)(const char *format, ...); int crc32c_offloaded; #endif }; /*- * 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; unsigned int sctp_sack_freq; uint32_t sctp_sws_sender; uint32_t sctp_sws_receiver; uint32_t sctp_default_cc_module; uint32_t sctp_default_ss_module; /* authentication related fields */ struct sctp_keyhead shared_keys; sctp_auth_chklist_t *local_auth_chunks; sctp_hmaclist_t *local_hmacs; uint16_t default_keyid; uint32_t default_mtu; /* 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; uint16_t def_net_pf_threshold; /* 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; uint32_t def_cookie_life; /* defaults to 0 */ int auto_close_time; uint32_t initial_sequence_debug; uint32_t adaptation_layer_indicator; uint8_t adaptation_layer_indicator_provided; uint32_t store_at; uint32_t max_burst; uint32_t fr_max_burst; #ifdef INET6 uint32_t default_flowlabel; #endif uint8_t default_dscp; char current_secret_number; char last_secret_number; uint16_t port; /* remote UDP encapsulation port */ }; #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_pcbtsn_rlog { uint32_t vtag; uint16_t strm; uint16_t seq; uint16_t sz; uint16_t flgs; }; #define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */ struct sctp_inpcb { /*- * put an inpcb in front of it all, kind of a waste but we need to * for compatibility with all the other stuff. */ union { struct inpcb inp; char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) & ~SCTP_ALIGNM1]; } ip_inp; #if defined(__APPLE__) /* leave some space in case i386 inpcb is bigger than ppc */ uint8_t padding[128]; #endif /* Socket buffer lock protects read_queue and of course sb_cc */ struct sctp_readhead read_queue; 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, NULL if bound-all */ struct sctpladdr sctp_addr_list; /* used for source address selection rotation when we are subset bound */ struct sctp_laddr *next_addr_touse; /* back pointer to our socket */ struct socket *sctp_socket; uint64_t sctp_features; /* Feature flags */ uint32_t sctp_flags; /* INP state flag set */ uint32_t sctp_mobility_features; /* Mobility Feature flags */ 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; #ifdef SCTP_TRACK_FREED_ASOCS struct sctpasochead sctp_asoc_free_list; #endif struct sctp_iterator *inp_starting_point_for_iterator; uint32_t sctp_frag_point; uint32_t partial_delivery_point; uint32_t sctp_context; uint32_t max_cwnd; uint8_t local_strreset_support; uint32_t sctp_cmt_on_off; uint8_t ecn_supported; uint8_t prsctp_supported; uint8_t auth_supported; uint8_t idata_supported; uint8_t asconf_supported; uint8_t reconfig_supported; uint8_t nrsack_supported; uint8_t pktdrop_supported; struct sctp_nonpad_sndrcvinfo def_send; /*- * These three are here for the sosend_dgram * (pkt, pkt_last and control). * routine. However, I don't think anyone in * the current FreeBSD kernel calls this. So * they are candidates with sctp_sendm for * de-supporting. */ #ifdef __Panda__ pakhandle_type pak_to_read; pakhandle_type pak_to_read_sendq; #endif struct mbuf *pkt, *pkt_last; struct mbuf *control; #if !(defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)) #ifndef INP_IPV6 #define INP_IPV6 0x1 #endif #ifndef INP_IPV4 #define INP_IPV4 0x2 #endif uint8_t inp_vflag; /* TODO __Userspace__ where is our inp_vlag going to be? */ uint8_t inp_ip_ttl; uint8_t inp_ip_tos; /* defined as macro in user_inpcb.h */ uint8_t inp_ip_resv; #endif #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 struct mtx inp_mtx; struct mtx inp_create_mtx; struct mtx inp_rdata_mtx; int32_t refcount; #elif defined(SCTP_PROCESS_LEVEL_LOCKS) userland_mutex_t inp_mtx; userland_mutex_t inp_create_mtx; userland_mutex_t inp_rdata_mtx; int32_t refcount; #elif defined(__APPLE__) #if defined(SCTP_APPLE_RWLOCK) lck_rw_t *inp_mtx; #else lck_mtx_t *inp_mtx; #endif lck_mtx_t *inp_create_mtx; lck_mtx_t *inp_rdata_mtx; #elif defined(__Windows__) struct rwlock inp_lock; struct spinlock inp_create_lock; struct spinlock inp_rdata_lock; int32_t refcount; #elif defined(__Userspace__) /* TODO decide on __Userspace__ locks */ int32_t refcount; #endif #if defined(__APPLE__) int32_t refcount; uint32_t lock_caller1; uint32_t lock_caller2; uint32_t lock_caller3; uint32_t unlock_caller1; uint32_t unlock_caller2; uint32_t unlock_caller3; uint32_t getlock_caller1; uint32_t getlock_caller2; uint32_t getlock_caller3; uint32_t gen_count; uint32_t lock_gen_count; uint32_t unlock_gen_count; uint32_t getlock_gen_count; uint32_t i_am_here_file; uint32_t i_am_here_line; #endif uint32_t def_vrf_id; uint16_t fibnum; #ifdef SCTP_MVRF uint32_t *m_vrf_ids; uint32_t num_vrfs; uint32_t vrf_size; #endif uint32_t total_sends; uint32_t total_recvs; uint32_t last_abort_code; uint32_t total_nospaces; struct sctpasochead *sctp_asocidhash; u_long hashasocidmark; uint32_t sctp_associd_counter; #ifdef SCTP_ASOCLOG_OF_TSNS struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE]; uint32_t readlog_index; #endif #if defined(__Userspace__) void *ulp_info; int (*recv_callback)(struct socket *, union sctp_sockstore, void *, size_t, struct sctp_rcvinfo, int, void *); uint32_t send_sb_threshold; int (*send_callback)(struct socket *, uint32_t); #endif }; #if defined(__Userspace__) int register_recv_cb (struct socket *, int (*)(struct socket *, union sctp_sockstore, void *, size_t, struct sctp_rcvinfo, int, void *)); int register_send_cb (struct socket *, uint32_t, int (*)(struct socket *, uint32_t)); int register_ulp_info (struct socket *, void *); #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_tcbasocidhash; /* next link in asocid * hash table */ LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */ struct sctp_block_entry *block_entry; /* pointer locked by socket * send buffer */ struct sctp_association asoc; /*- * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the * tcb_lock. Its special in this way to help avoid extra mutex calls * in the reading of data. */ uint32_t freed_by_sorcv_sincelast; uint32_t total_sends; uint32_t total_recvs; int freed_from_where; uint16_t rport; /* remote port in network format */ uint16_t resv; #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 struct mtx tcb_mtx; struct mtx tcb_send_mtx; #elif defined(SCTP_PROCESS_LEVEL_LOCKS) userland_mutex_t tcb_mtx; userland_mutex_t tcb_send_mtx; #elif defined(__APPLE__) lck_mtx_t* tcb_mtx; lck_mtx_t* tcb_send_mtx; #elif defined(__Windows__) struct spinlock tcb_lock; struct spinlock tcb_send_lock; #elif defined(__Userspace__) /* TODO decide on __Userspace__ locks */ #endif #if defined(__APPLE__) uint32_t caller1; uint32_t caller2; uint32_t caller3; #endif }; #if defined(__FreeBSD__) && __FreeBSD_version >= 503000 #include #elif defined(__APPLE__) /* * Apple MacOS X 10.4 "Tiger" */ #include #elif defined(SCTP_PROCESS_LEVEL_LOCKS) #include #elif defined(__Windows__) #include #elif defined(__Userspace__) #include #else /* * Pre-5.x FreeBSD, and others. */ #include #endif /* TODO where to put non-_KERNEL things for __Userspace__? */ #if defined(_KERNEL) || defined(__Userspace__) /* Attention Julian, this is the extern that * goes with the base info. sctp_pcb.c has * the real definition. */ #if defined(__FreeBSD__) && __FreeBSD_version >= 801000 VNET_DECLARE(struct sctp_base_info, system_base_info) ; #else extern struct sctp_base_info system_base_info; #endif #ifdef INET6 int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b); #endif void sctp_fill_pcbinfo(struct sctp_pcbinfo *); struct sctp_ifn * sctp_find_ifn(void *ifn, uint32_t ifn_index); struct sctp_vrf *sctp_allocate_vrf(int vrfid); struct sctp_vrf *sctp_find_vrf(uint32_t vrfid); void sctp_free_vrf(struct sctp_vrf *vrf); /*- * Change address state, can be used if * O/S supports telling transports about * changes to IFA/IFN's (link layer triggers). * If a ifn goes down, we will do src-addr-selection * and NOT use that, as a source address. This does * not stop the routing system from routing out * that interface, but we won't put it as a source. */ void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); struct sctp_ifa * sctp_add_addr_to_vrf(uint32_t vrfid, void *ifn, uint32_t ifn_index, uint32_t ifn_type, const char *if_name, void *ifa, struct sockaddr *addr, uint32_t ifa_flags, int dynamic_add); void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu); void sctp_free_ifn(struct sctp_ifn *sctp_ifnp); void sctp_free_ifa(struct sctp_ifa *sctp_ifap); void sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr, uint32_t ifn_index, const char *if_name); struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t); #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct sctp_ifa *,struct thread *); #elif defined(__Windows__) int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct sctp_ifa *,PKTHREAD); #else /* struct proc is a dummy for __Userspace__ */ int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct sctp_ifa *, struct proc *); #endif struct sctp_tcb * sctp_findassociation_addr(struct mbuf *, int, struct sockaddr *, struct sockaddr *, struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); struct sctp_tcb * sctp_findassociation_addr_sa(struct sockaddr *, struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t); 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_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock); struct sctp_tcb * sctp_findassociation_ep_asocid(struct sctp_inpcb *, sctp_assoc_t, int); struct sctp_tcb * sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *, struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id); int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id); void sctp_inpcb_free(struct sctp_inpcb *, int, int); #define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0 #define SCTP_INITIALIZE_AUTH_PARAMS 1 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 struct sctp_tcb * sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, uint32_t, uint16_t, uint16_t, struct thread *, int); #elif defined(__Windows__) struct sctp_tcb * sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, uint32_t, uint16_t, uint16_t, PKTHREAD, int); #else /* proc will be NULL for __Userspace__ */ struct sctp_tcb * sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, uint32_t, uint16_t, uint16_t, struct proc *, int); #endif int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int); void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t); int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport); void sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport); void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t); void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *); int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int); void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *); int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); #if defined(__Userspace__) void sctp_pcb_init(int); #else void sctp_pcb_init(void); #endif void sctp_pcb_finish(void); void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); int sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t); int sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets *); int sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *); /* void sctp_drain(void); */ int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp); void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh); /*- * 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(inp_func inpf, asoc_func af, inp_func inpe, uint32_t, uint32_t, uint32_t, void *, uint32_t, end_func ef, struct sctp_inpcb *, uint8_t co_off); #if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP) void sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use); #endif #endif /* _KERNEL */ #endif /* !__sctp_pcb_h__ */