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/sctputil.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10  
    1 /*-
    2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
    3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/9.1/sys/netinet/sctputil.h 238253 2012-07-08 16:14:42Z tuexen $");
   35 
   36 #ifndef _NETINET_SCTP_UTIL_H_
   37 #define _NETINET_SCTP_UTIL_H_
   38 
   39 #if defined(_KERNEL) || defined(__Userspace__)
   40 
   41 #define SCTP_READ_LOCK_HELD 1
   42 #define SCTP_READ_LOCK_NOT_HELD 0
   43 
   44 #ifdef SCTP_ASOCLOG_OF_TSNS
   45 void sctp_print_out_track_log(struct sctp_tcb *stcb);
   46 
   47 #endif
   48 
   49 #ifdef SCTP_MBUF_LOGGING
   50 struct mbuf *sctp_m_free(struct mbuf *m);
   51 void sctp_m_freem(struct mbuf *m);
   52 
   53 #else
   54 #define sctp_m_free m_free
   55 #define sctp_m_freem m_freem
   56 #endif
   57 
   58 #if defined(SCTP_LOCAL_TRACE_BUF) || defined(__APPLE__)
   59 void
   60      sctp_log_trace(uint32_t fr, const char *str SCTP_UNUSED, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e, uint32_t f);
   61 
   62 #endif
   63 
   64 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
   65 
   66 
   67 /*
   68  * Function prototypes
   69  */
   70 uint32_t
   71 sctp_get_ifa_hash_val(struct sockaddr *addr);
   72 
   73 struct sctp_ifa *
   74          sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
   75 
   76 struct sctp_ifa *
   77          sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
   78 
   79 uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
   80 
   81 uint32_t sctp_select_a_tag(struct sctp_inpcb *, uint16_t lport, uint16_t rport, int);
   82 
   83 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_tcb *, uint32_t, uint32_t);
   84 
   85 void sctp_fill_random_store(struct sctp_pcb *);
   86 
   87 void
   88 sctp_notify_stream_reset_add(struct sctp_tcb *stcb, uint16_t numberin,
   89     uint16_t numberout, int flag);
   90 void
   91      sctp_notify_stream_reset_tsn(struct sctp_tcb *stcb, uint32_t sending_tsn, uint32_t recv_tsn, int flag);
   92 
   93 void
   94 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
   95     struct sctp_nets *);
   96 
   97 void
   98 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
   99     struct sctp_nets *, uint32_t);
  100 
  101 int
  102     sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
  103 
  104 void
  105      sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
  106 
  107 void
  108 sctp_add_to_readq(struct sctp_inpcb *inp,
  109     struct sctp_tcb *stcb,
  110     struct sctp_queued_to_read *control,
  111     struct sockbuf *sb,
  112     int end,
  113     int inpread_locked,
  114     int so_locked
  115 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  116     SCTP_UNUSED
  117 #endif
  118 );
  119 
  120 int
  121 sctp_append_to_readq(struct sctp_inpcb *inp,
  122     struct sctp_tcb *stcb,
  123     struct sctp_queued_to_read *control,
  124     struct mbuf *m,
  125     int end,
  126     int new_cumack,
  127     struct sockbuf *sb);
  128 
  129 
  130 void sctp_iterator_worker(void);
  131 
  132 uint32_t sctp_get_prev_mtu(uint32_t);
  133 uint32_t sctp_get_next_mtu(uint32_t);
  134 
  135 void
  136      sctp_timeout_handler(void *);
  137 
  138 uint32_t
  139 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
  140     struct sctp_nets *, struct timeval *, int, int);
  141 
  142 uint32_t sctp_calculate_len(struct mbuf *);
  143 
  144 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
  145 
  146 struct sctp_paramhdr *
  147 sctp_get_next_param(struct mbuf *, int,
  148     struct sctp_paramhdr *, int);
  149 
  150 int sctp_add_pad_tombuf(struct mbuf *, int);
  151 
  152 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
  153 
  154 void 
  155 sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *, int
  156 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  157     SCTP_UNUSED
  158 #endif
  159 );
  160 
  161 void
  162 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
  163     struct sctp_inpcb *new_inp,
  164     struct sctp_tcb *stcb, int waitflags);
  165 
  166 
  167 void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
  168 
  169 void 
  170 sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int, int
  171 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  172     SCTP_UNUSED
  173 #endif
  174 );
  175 
  176 int sctp_expand_mapping_array(struct sctp_association *, uint32_t);
  177 
  178 void 
  179 sctp_abort_notification(struct sctp_tcb *, uint8_t, uint16_t,
  180     struct sctp_abort_chunk *, int
  181 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  182     SCTP_UNUSED
  183 #endif
  184 );
  185 
  186 /* We abort responding to an IP packet for some reason */
  187 void
  188 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, struct mbuf *,
  189     int, struct sctphdr *, struct mbuf *,
  190     uint8_t, uint32_t,
  191     uint32_t, uint16_t);
  192 
  193 
  194 /* We choose to abort via user input */
  195 void
  196 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *,
  197     struct mbuf *, int
  198 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  199     SCTP_UNUSED
  200 #endif
  201 );
  202 
  203 void 
  204 sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
  205     struct sctp_inpcb *,
  206     uint8_t, uint32_t,
  207     uint32_t, uint16_t);
  208 
  209 int 
  210 sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr,
  211     int totaddr, int *error);
  212 
  213 struct sctp_tcb *
  214 sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr,
  215     int *totaddr, int *num_v4, int *num_v6, int *error, int limit, int *bad_addr);
  216 
  217 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
  218 
  219 #ifdef INET6
  220 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
  221 
  222 struct sockaddr_in6 *
  223              sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
  224 
  225 #define sctp_recover_scope_mac(addr, store) do { \
  226          if ((addr->sin6_family == AF_INET6) && \
  227              (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
  228                 *store = *addr; \
  229                 if (addr->sin6_scope_id == 0) { \
  230                         if (!sa6_recoverscope(store)) { \
  231                                 addr = store; \
  232                         } \
  233                 } else { \
  234                         in6_clearscope(&addr->sin6_addr); \
  235                         addr = store; \
  236                 } \
  237          } \
  238 } while (0)
  239 #endif
  240 
  241 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
  242 
  243 void sctp_print_address(struct sockaddr *);
  244 void sctp_print_address_pkt(struct ip *, struct sctphdr *);
  245 
  246 int
  247 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
  248     uint8_t, int
  249 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
  250     SCTP_UNUSED
  251 #endif
  252 );
  253 
  254 struct mbuf *sctp_generate_invmanparam(int);
  255 
  256 void 
  257 sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp,
  258     struct sockaddr *sa, sctp_assoc_t assoc_id,
  259     uint32_t vrf_id, int *error, void *p);
  260 void 
  261 sctp_bindx_delete_address(struct sctp_inpcb *inp,
  262     struct sockaddr *sa, sctp_assoc_t assoc_id,
  263     uint32_t vrf_id, int *error);
  264 
  265 int sctp_local_addr_count(struct sctp_tcb *stcb);
  266 
  267 #ifdef SCTP_MBCNT_LOGGING
  268 void
  269 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
  270     struct sctp_tmit_chunk *, int);
  271 
  272 #else
  273 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt)  \
  274 do { \
  275         if (tp1->data != NULL) { \
  276                 atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \
  277                 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
  278                         atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \
  279                 } else { \
  280                         (asoc)->total_output_queue_size = 0; \
  281                 } \
  282                 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
  283                     (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
  284                         if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
  285                                 atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \
  286                         } else { \
  287                                 stcb->sctp_socket->so_snd.sb_cc = 0; \
  288                         } \
  289                 } \
  290         } \
  291 } while (0)
  292 
  293 #endif
  294 
  295 #define sctp_free_spbufspace(stcb, asoc, sp)  \
  296 do { \
  297         if (sp->data != NULL) { \
  298                 if ((asoc)->total_output_queue_size >= sp->length) { \
  299                         atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \
  300                 } else { \
  301                         (asoc)->total_output_queue_size = 0; \
  302                 } \
  303                 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
  304                     (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
  305                         if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
  306                                 atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
  307                         } else { \
  308                                 stcb->sctp_socket->so_snd.sb_cc = 0; \
  309                         } \
  310                 } \
  311         } \
  312 } while (0)
  313 
  314 #define sctp_snd_sb_alloc(stcb, sz)  \
  315 do { \
  316         atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
  317         if ((stcb->sctp_socket != NULL) && \
  318             ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
  319              (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
  320                 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
  321         } \
  322 } while (0)
  323 
  324 /* functions to start/stop udp tunneling */
  325 /* XXX: Remove the #ifdef after tunneling over IPv6 works also on FreeBSD. */
  326 #ifdef INET
  327 void sctp_over_udp_stop(void);
  328 int sctp_over_udp_start(void);
  329 
  330 #endif
  331 
  332 int
  333 sctp_soreceive(struct socket *so, struct sockaddr **psa,
  334     struct uio *uio,
  335     struct mbuf **mp0,
  336     struct mbuf **controlp,
  337     int *flagsp);
  338 
  339 void
  340      sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
  341 
  342 void
  343 sctp_wakeup_log(struct sctp_tcb *stcb,
  344     uint32_t wake_cnt, int from);
  345 
  346 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
  347 
  348 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
  349 
  350 
  351 void
  352      sctp_log_mb(struct mbuf *m, int from);
  353 
  354 void
  355 sctp_sblog(struct sockbuf *sb,
  356     struct sctp_tcb *stcb, int from, int incr);
  357 
  358 void
  359 sctp_log_strm_del(struct sctp_queued_to_read *control,
  360     struct sctp_queued_to_read *poschk,
  361     int from);
  362 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
  363 void rto_logging(struct sctp_nets *net, int from);
  364 
  365 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
  366 
  367 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
  368 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
  369 void sctp_log_block(uint8_t, struct sctp_association *, int);
  370 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
  371 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
  372 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
  373 int sctp_fill_stat_log(void *, size_t *);
  374 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
  375 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
  376 void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
  377 void sctp_print_mapping_array(struct sctp_association *asoc);
  378 void sctp_clr_stat_log(void);
  379 
  380 
  381 #ifdef SCTP_AUDITING_ENABLED
  382 void
  383 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
  384     struct sctp_nets *);
  385 void sctp_audit_log(uint8_t, uint8_t);
  386 
  387 #endif
  388 #endif                          /* _KERNEL */
  389 #endif

Cache object: 011629ccb7a2ae76116e56d6daeff6b9

[ 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.