The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_pcb.h

Version: -  FREEBSD  -  FREEBSD11  -  FREEBSD10  -  FREEBSD9  -  FREEBSD92  -  FREEBSD91  -  FREEBSD90  -  FREEBSD8  -  FREEBSD82  -  FREEBSD81  -  FREEBSD80  -  FREEBSD7  -  FREEBSD74  -  FREEBSD73  -  FREEBSD72  -  FREEBSD71  -  FREEBSD70  -  FREEBSD6  -  FREEBSD64  -  FREEBSD63  -  FREEBSD62  -  FREEBSD61  -  FREEBSD60  -  FREEBSD5  -  FREEBSD55  -  FREEBSD54  -  FREEBSD53  -  FREEBSD52  -  FREEBSD51  -  FREEBSD50  -  FREEBSD4  -  FREEBSD3  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions are met:
    6  *
    7  * a) Redistributions of source code must retain the above copyright notice,
    8  *   this list of conditions and the following disclaimer.
    9  *
   10  * b) Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in
   12  *   the documentation and/or other materials provided with the distribution.
   13  *
   14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   15  *    contributors may be used to endorse or promote products derived
   16  *    from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   28  * THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 /* $KAME: sctp_pcb.h,v 1.21 2005/07/16 01:18:47 suz Exp $        */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD$");
   35 
   36 #ifndef __sctp_pcb_h__
   37 #define __sctp_pcb_h__
   38 
   39 #include <netinet/sctp_os.h>
   40 #include <netinet/sctp.h>
   41 #include <netinet/sctp_constants.h>
   42 #include <netinet/sctp_sysctl.h>
   43 
   44 LIST_HEAD(sctppcbhead, sctp_inpcb);
   45 LIST_HEAD(sctpasochead, sctp_tcb);
   46 LIST_HEAD(sctpladdr, sctp_laddr);
   47 LIST_HEAD(sctpvtaghead, sctp_tagblock);
   48 LIST_HEAD(sctp_vrflist, sctp_vrf);
   49 LIST_HEAD(sctp_ifnlist, sctp_ifn);
   50 LIST_HEAD(sctp_ifalist, sctp_ifa);
   51 TAILQ_HEAD(sctp_readhead, sctp_queued_to_read);
   52 TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending);
   53 
   54 #include <netinet/sctp_structs.h>
   55 #include <netinet/sctp_auth.h>
   56 
   57 #define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask)
   58 #define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask)
   59 
   60 struct sctp_vrf {
   61         LIST_ENTRY(sctp_vrf) next_vrf;
   62         struct sctp_ifalist *vrf_addr_hash;
   63         struct sctp_ifnlist ifnlist;
   64         uint32_t vrf_id;
   65         uint32_t tbl_id_v4;     /* default v4 table id */
   66         uint32_t tbl_id_v6;     /* default v6 table id */
   67         uint32_t total_ifa_count;
   68         u_long vrf_addr_hashmark;
   69         uint32_t refcount;
   70 };
   71 
   72 struct sctp_ifn {
   73         struct sctp_ifalist ifalist;
   74         struct sctp_vrf *vrf;
   75                  LIST_ENTRY(sctp_ifn) next_ifn;
   76                  LIST_ENTRY(sctp_ifn) next_bucket;
   77         void *ifn_p;            /* never access without appropriate lock */
   78         uint32_t ifn_mtu;
   79         uint32_t ifn_type;
   80         uint32_t ifn_index;     /* shorthand way to look at ifn for reference */
   81         uint32_t refcount;      /* number of reference held should be >=
   82                                  * ifa_count */
   83         uint32_t ifa_count;     /* IFA's we hold (in our list - ifalist) */
   84         uint32_t num_v6;        /* number of v6 addresses */
   85         uint32_t num_v4;        /* number of v4 addresses */
   86         uint32_t registered_af; /* registered address family for i/f events */
   87         char ifn_name[SCTP_IFNAMSIZ];
   88 };
   89 
   90 /* SCTP local IFA flags */
   91 #define SCTP_ADDR_VALID         0x00000001      /* its up and active */
   92 #define SCTP_BEING_DELETED      0x00000002      /* being deleted, when
   93                                                  * refcount = 0. Note that it
   94                                                  * is pulled from the ifn list
   95                                                  * and ifa_p is nulled right
   96                                                  * away but it cannot be freed
   97                                                  * until the last *net
   98                                                  * pointing to it is deleted. */
   99 #define SCTP_ADDR_DEFER_USE     0x00000004      /* Hold off using this one */
  100 #define SCTP_ADDR_IFA_UNUSEABLE 0x00000008
  101 
  102 struct sctp_ifa {
  103         LIST_ENTRY(sctp_ifa) next_ifa;
  104         LIST_ENTRY(sctp_ifa) next_bucket;
  105         struct sctp_ifn *ifn_p; /* back pointer to parent ifn */
  106         void *ifa;              /* pointer to ifa, needed for flag update for
  107                                  * that we MUST lock appropriate locks. This
  108                                  * is for V6. */
  109         union sctp_sockstore address;
  110         uint32_t refcount;      /* number of folks refering to this */
  111         uint32_t flags;
  112         uint32_t localifa_flags;
  113         uint32_t vrf_id;        /* vrf_id of this addr (for deleting) */
  114         uint8_t src_is_loop;
  115         uint8_t src_is_priv;
  116         uint8_t src_is_glob;
  117         uint8_t resv;
  118 };
  119 
  120 struct sctp_laddr {
  121         LIST_ENTRY(sctp_laddr) sctp_nxt_addr;   /* next in list */
  122         struct sctp_ifa *ifa;
  123         uint32_t action;        /* Used during asconf and adding if no-zero
  124                                  * src-addr selection will not consider this
  125                                  * address. */
  126         struct timeval start_time;      /* time when this address was created */
  127 };
  128 
  129 struct sctp_block_entry {
  130         int error;
  131 };
  132 
  133 struct sctp_timewait {
  134         uint32_t tv_sec_at_expire;      /* the seconds from boot to expire */
  135         uint32_t v_tag;         /* the vtag that can not be reused */
  136         uint16_t lport;         /* the local port used in vtag */
  137         uint16_t rport;         /* the remote port used in vtag */
  138 };
  139 
  140 struct sctp_tagblock {
  141         LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock;
  142         struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK];
  143 };
  144 
  145 
  146 struct sctp_epinfo {
  147         struct sctpasochead *sctp_asochash;
  148         u_long hashasocmark;
  149 
  150         struct sctppcbhead *sctp_ephash;
  151         u_long hashmark;
  152 
  153         /*-
  154          * The TCP model represents a substantial overhead in that we get an
  155          * additional hash table to keep explicit connections in. The
  156          * listening TCP endpoint will exist in the usual ephash above and
  157          * accept only INIT's. It will be incapable of sending off an INIT.
  158          * When a dg arrives we must look in the normal ephash. If we find a
  159          * TCP endpoint that will tell us to go to the specific endpoint
  160          * hash and re-hash to find the right assoc/socket. If we find a UDP
  161          * model socket we then must complete the lookup. If this fails,
  162          * i.e. no association can be found then we must continue to see if
  163          * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket
  164          * acts like a TCP model connected socket).
  165          */
  166         struct sctppcbhead *sctp_tcpephash;
  167         u_long hashtcpmark;
  168         uint32_t hashtblsize;
  169 
  170         struct sctp_vrflist *sctp_vrfhash;
  171         u_long hashvrfmark;
  172 
  173         struct sctp_ifnlist *vrf_ifn_hash;
  174         u_long vrf_ifn_hashmark;
  175 
  176         struct sctppcbhead listhead;
  177         struct sctpladdr addr_wq;
  178 
  179         struct sctpiterators iteratorhead;
  180         int threads_must_exit;
  181         /* ep zone info */
  182         sctp_zone_t ipi_zone_ep;
  183         sctp_zone_t ipi_zone_asoc;
  184         sctp_zone_t ipi_zone_laddr;
  185         sctp_zone_t ipi_zone_net;
  186         sctp_zone_t ipi_zone_chunk;
  187         sctp_zone_t ipi_zone_readq;
  188         sctp_zone_t ipi_zone_strmoq;
  189         sctp_zone_t ipi_zone_asconf;
  190         sctp_zone_t ipi_zone_asconf_ack;
  191 
  192         struct rwlock ipi_ep_mtx;
  193         struct mtx it_mtx;
  194         struct mtx ipi_iterator_wq_mtx;
  195         struct rwlock ipi_addr_mtx;
  196         struct mtx ipi_pktlog_mtx;
  197         uint32_t ipi_count_ep;
  198 
  199         /* assoc/tcb zone info */
  200         uint32_t ipi_count_asoc;
  201 
  202         /* local addrlist zone info */
  203         uint32_t ipi_count_laddr;
  204 
  205         /* remote addrlist zone info */
  206         uint32_t ipi_count_raddr;
  207 
  208         /* chunk structure list for output */
  209         uint32_t ipi_count_chunk;
  210 
  211         /* socket queue zone info */
  212         uint32_t ipi_count_readq;
  213 
  214         /* socket queue zone info */
  215         uint32_t ipi_count_strmoq;
  216 
  217         /* Number of vrfs */
  218         uint32_t ipi_count_vrfs;
  219 
  220         /* Number of ifns */
  221         uint32_t ipi_count_ifns;
  222 
  223         /* Number of ifas */
  224         uint32_t ipi_count_ifas;
  225 
  226         /* system wide number of free chunks hanging around */
  227         uint32_t ipi_free_chunks;
  228         uint32_t ipi_free_strmoq;
  229 
  230 
  231         struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];
  232 
  233         /* address work queue handling */
  234 #if defined(SCTP_USE_THREAD_BASED_ITERATOR)
  235         uint32_t iterator_running;
  236         SCTP_PROCESS_STRUCT thread_proc;
  237 #endif
  238         struct sctp_timer addr_wq_timer;
  239 
  240 };
  241 
  242 
  243 struct sctp_base_info {
  244         /*
  245          * All static structures that anchor the system must be here.
  246          */
  247         struct sctp_epinfo sctppcbinfo;
  248         struct sctpstat sctpstat;
  249         struct sctp_sysctl sctpsysctl;
  250         uint8_t first_time;
  251         char sctp_pcb_initialized;
  252 #if defined(SCTP_PACKET_LOGGING)
  253         int packet_log_writers;
  254         int packet_log_end;
  255         uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE];
  256 #endif
  257 };
  258 
  259 /*-
  260  * Here we have all the relevant information for each SCTP entity created. We
  261  * will need to modify this as approprate. We also need to figure out how to
  262  * access /dev/random.
  263  */
  264 struct sctp_pcb {
  265         unsigned int time_of_secret_change;     /* number of seconds from
  266                                                  * timeval.tv_sec */
  267         uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS];
  268         unsigned int size_of_a_cookie;
  269 
  270         unsigned int sctp_timeoutticks[SCTP_NUM_TMRS];
  271         unsigned int sctp_minrto;
  272         unsigned int sctp_maxrto;
  273         unsigned int initial_rto;
  274         int initial_init_rto_max;
  275 
  276         unsigned int sctp_sack_freq;
  277         uint32_t sctp_sws_sender;
  278         uint32_t sctp_sws_receiver;
  279 
  280         uint32_t sctp_default_cc_module;
  281         /* authentication related fields */
  282         struct sctp_keyhead shared_keys;
  283         sctp_auth_chklist_t *local_auth_chunks;
  284         sctp_hmaclist_t *local_hmacs;
  285         uint16_t default_keyid;
  286 
  287         /* various thresholds */
  288         /* Max times I will init at a guy */
  289         uint16_t max_init_times;
  290 
  291         /* Max times I will send before we consider someone dead */
  292         uint16_t max_send_times;
  293 
  294         uint16_t def_net_failure;
  295 
  296         /* number of streams to pre-open on a association */
  297         uint16_t pre_open_stream_count;
  298         uint16_t max_open_streams_intome;
  299 
  300         /* random number generator */
  301         uint32_t random_counter;
  302         uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE];
  303         uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE];
  304 
  305         /*
  306          * This timer is kept running per endpoint.  When it fires it will
  307          * change the secret key.  The default is once a hour
  308          */
  309         struct sctp_timer signature_change;
  310 
  311         /* Zero copy full buffer timer */
  312         struct sctp_timer zero_copy_timer;
  313         /* Zero copy app to transport (sendq) read repulse timer */
  314         struct sctp_timer zero_copy_sendq_timer;
  315         uint32_t def_cookie_life;
  316         /* defaults to 0 */
  317         int auto_close_time;
  318         uint32_t initial_sequence_debug;
  319         uint32_t adaptation_layer_indicator;
  320         uint32_t store_at;
  321         uint8_t max_burst;
  322         char current_secret_number;
  323         char last_secret_number;
  324 };
  325 
  326 #ifndef SCTP_ALIGNMENT
  327 #define SCTP_ALIGNMENT 32
  328 #endif
  329 
  330 #ifndef SCTP_ALIGNM1
  331 #define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1)
  332 #endif
  333 
  334 #define sctp_lport ip_inp.inp.inp_lport
  335 
  336 struct sctp_pcbtsn_rlog {
  337         uint32_t vtag;
  338         uint16_t strm;
  339         uint16_t seq;
  340         uint16_t sz;
  341         uint16_t flgs;
  342 };
  343 
  344 #define SCTP_READ_LOG_SIZE 135  /* we choose the number to make a pcb a page */
  345 
  346 
  347 struct sctp_inpcb {
  348         /*-
  349          * put an inpcb in front of it all, kind of a waste but we need to
  350          * for compatability with all the other stuff.
  351          */
  352         union {
  353                 struct inpcb inp;
  354                 char align[(sizeof(struct in6pcb) + SCTP_ALIGNM1) &
  355                         ~SCTP_ALIGNM1];
  356         }     ip_inp;
  357 
  358 
  359         /* Socket buffer lock protects read_queue and of course sb_cc */
  360         struct sctp_readhead read_queue;
  361 
  362                       LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */
  363         /* hash of all endpoints for model */
  364                       LIST_ENTRY(sctp_inpcb) sctp_hash;
  365         /* count of local addresses bound, 0 if bound all */
  366         int laddr_count;
  367 
  368         /* list of addrs in use by the EP, NULL if bound-all */
  369         struct sctpladdr sctp_addr_list;
  370         /*
  371          * used for source address selection rotation when we are subset
  372          * bound
  373          */
  374         struct sctp_laddr *next_addr_touse;
  375 
  376         /* back pointer to our socket */
  377         struct socket *sctp_socket;
  378         uint32_t sctp_flags;    /* INP state flag set */
  379         uint32_t sctp_features; /* Feature flags */
  380         uint32_t sctp_mobility_features;        /* Mobility  Feature flags */
  381         struct sctp_pcb sctp_ep;/* SCTP ep data */
  382         /* head of the hash of all associations */
  383         struct sctpasochead *sctp_tcbhash;
  384         u_long sctp_hashmark;
  385         /* head of the list of all associations */
  386         struct sctpasochead sctp_asoc_list;
  387 #ifdef SCTP_TRACK_FREED_ASOCS
  388         struct sctpasochead sctp_asoc_free_list;
  389 #endif
  390         struct sctp_iterator *inp_starting_point_for_iterator;
  391         uint32_t sctp_frag_point;
  392         uint32_t partial_delivery_point;
  393         uint32_t sctp_context;
  394         struct sctp_nonpad_sndrcvinfo def_send;
  395         /*-
  396          * These three are here for the sosend_dgram
  397          * (pkt, pkt_last and control).
  398          * routine. However, I don't think anyone in
  399          * the current FreeBSD kernel calls this. So
  400          * they are candidates with sctp_sendm for
  401          * de-supporting.
  402          */
  403         struct mbuf *pkt, *pkt_last;
  404         struct mbuf *control;
  405         struct mtx inp_mtx;
  406         struct mtx inp_create_mtx;
  407         struct mtx inp_rdata_mtx;
  408         int32_t refcount;
  409         uint32_t def_vrf_id;
  410         uint32_t total_sends;
  411         uint32_t total_recvs;
  412         uint32_t last_abort_code;
  413         uint32_t total_nospaces;
  414         struct sctpasochead *sctp_asocidhash;
  415         u_long hashasocidmark;
  416         uint32_t sctp_associd_counter;
  417 
  418 #ifdef SCTP_ASOCLOG_OF_TSNS
  419         struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE];
  420         uint32_t readlog_index;
  421 #endif
  422 };
  423 
  424 struct sctp_tcb {
  425         struct socket *sctp_socket;     /* back pointer to socket */
  426         struct sctp_inpcb *sctp_ep;     /* back pointer to ep */
  427                    LIST_ENTRY(sctp_tcb) sctp_tcbhash;   /* next link in hash
  428                                                          * table */
  429                    LIST_ENTRY(sctp_tcb) sctp_tcblist;   /* list of all of the
  430                                                          * TCB's */
  431                    LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash;     /* next link in asocid
  432                                                                  * hash table */
  433                    LIST_ENTRY(sctp_tcb) sctp_asocs;     /* vtag hash list */
  434         struct sctp_block_entry *block_entry;   /* pointer locked by  socket
  435                                                  * send buffer */
  436         struct sctp_association asoc;
  437         /*-
  438          * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the
  439          * tcb_lock. Its special in this way to help avoid extra mutex calls
  440          * in the reading of data.
  441          */
  442         uint32_t freed_by_sorcv_sincelast;
  443         uint32_t total_sends;
  444         uint32_t total_recvs;
  445         int freed_from_where;
  446         uint16_t rport;         /* remote port in network format */
  447         uint16_t resv;
  448         struct mtx tcb_mtx;
  449         struct mtx tcb_send_mtx;
  450 };
  451 
  452 
  453 
  454 #include <netinet/sctp_lock_bsd.h>
  455 
  456 
  457 /* TODO where to put non-_KERNEL things for __Userspace__? */
  458 #if defined(_KERNEL) || defined(__Userspace__)
  459 
  460 /* Attention Julian, this is the extern that
  461  * goes with the base info. sctp_pcb.c has
  462  * the real definition.
  463  */
  464 extern struct sctp_base_info system_base_info;
  465 
  466 #ifdef INET6
  467 int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b);
  468 
  469 #endif
  470 
  471 void sctp_fill_pcbinfo(struct sctp_pcbinfo *);
  472 
  473 struct sctp_ifn *
  474          sctp_find_ifn(void *ifn, uint32_t ifn_index);
  475 
  476 struct sctp_vrf *sctp_allocate_vrf(int vrfid);
  477 struct sctp_vrf *sctp_find_vrf(uint32_t vrfid);
  478 void sctp_free_vrf(struct sctp_vrf *vrf);
  479 
  480 /*-
  481  * Change address state, can be used if
  482  * O/S supports telling transports about
  483  * changes to IFA/IFN's (link layer triggers).
  484  * If a ifn goes down, we will do src-addr-selection
  485  * and NOT use that, as a source address. This does
  486  * not stop the routing system from routing out
  487  * that interface, but we won't put it as a source.
  488  */
  489 void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
  490 void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
  491 
  492 struct sctp_ifa *
  493 sctp_add_addr_to_vrf(uint32_t vrfid,
  494     void *ifn, uint32_t ifn_index, uint32_t ifn_type,
  495     const char *if_name,
  496     void *ifa, struct sockaddr *addr, uint32_t ifa_flags,
  497     int dynamic_add);
  498 
  499 void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu);
  500 
  501 void sctp_free_ifn(struct sctp_ifn *sctp_ifnp);
  502 void sctp_free_ifa(struct sctp_ifa *sctp_ifap);
  503 
  504 
  505 void 
  506 sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr,
  507     uint32_t ifn_index, const char *if_name);
  508 
  509 
  510 
  511 struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *);
  512 
  513 struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t);
  514 
  515 int 
  516 sctp_inpcb_bind(struct socket *, struct sockaddr *,
  517     struct sctp_ifa *, struct thread *);
  518 
  519 struct sctp_tcb *
  520 sctp_findassociation_addr(struct mbuf *, int, int,
  521     struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **,
  522     struct sctp_nets **, uint32_t vrf_id);
  523 
  524 struct sctp_tcb *
  525 sctp_findassociation_addr_sa(struct sockaddr *,
  526     struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t);
  527 
  528 void
  529 sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *,
  530     struct sctp_tcb *);
  531 
  532 /*-
  533  * For this call ep_addr, the to is the destination endpoint address of the
  534  * peer (relative to outbound). The from field is only used if the TCP model
  535  * is enabled and helps distingush amongst the subset bound (non-boundall).
  536  * The TCP model MAY change the actual ep field, this is why it is passed.
  537  */
  538 struct sctp_tcb *
  539 sctp_findassociation_ep_addr(struct sctp_inpcb **,
  540     struct sockaddr *, struct sctp_nets **, struct sockaddr *,
  541     struct sctp_tcb *);
  542 
  543 struct sctp_tcb *
  544          sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock);
  545 
  546 struct sctp_tcb *
  547 sctp_findassociation_ep_asocid(struct sctp_inpcb *,
  548     sctp_assoc_t, int);
  549 
  550 struct sctp_tcb *
  551 sctp_findassociation_ep_asconf(struct mbuf *, int, int,
  552     struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id);
  553 
  554 int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id);
  555 
  556 int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id);
  557 
  558 void sctp_inpcb_free(struct sctp_inpcb *, int, int);
  559 
  560 struct sctp_tcb *
  561 sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
  562     int, int *, uint32_t, uint32_t, struct thread *);
  563 
  564 int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int);
  565 
  566 
  567 void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t);
  568 
  569 int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport);
  570 
  571 void
  572      sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport);
  573 
  574 void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t);
  575 
  576 int sctp_insert_laddr(struct sctpladdr *, struct sctp_ifa *, uint32_t);
  577 
  578 void sctp_remove_laddr(struct sctp_laddr *);
  579 
  580 void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *);
  581 
  582 int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, int, int);
  583 
  584 void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *);
  585 
  586 int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *);
  587 
  588 void sctp_pcb_init(void);
  589 
  590 void sctp_pcb_finish(void);
  591 
  592 void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
  593 void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
  594 
  595 int
  596 sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int,
  597     int, struct sctphdr *, struct sockaddr *);
  598 
  599 int
  600 sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *,
  601     struct sctp_nets *);
  602 
  603 int sctp_is_vtag_good(struct sctp_inpcb *, uint32_t, uint16_t lport, uint16_t rport, struct timeval *, int);
  604 
  605 /* void sctp_drain(void); */
  606 
  607 int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *);
  608 
  609 int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp);
  610 
  611 /*-
  612  * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg
  613  * indicates run on ONLY assoc's of the specified endpoint.
  614  */
  615 int
  616 sctp_initiate_iterator(inp_func inpf,
  617     asoc_func af,
  618     inp_func inpe,
  619     uint32_t, uint32_t,
  620     uint32_t, void *,
  621     uint32_t,
  622     end_func ef,
  623     struct sctp_inpcb *,
  624     uint8_t co_off);
  625 
  626 #endif                          /* _KERNEL */
  627 #endif                          /* !__sctp_pcb_h__ */

Cache object: 22a8aa81a3ecc1383bd82b01bdd97a5e


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.