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

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

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
    5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions are met:
   10  *
   11  * a) Redistributions of source code must retain the above copyright notice,
   12  *    this list of conditions and the following disclaimer.
   13  *
   14  * b) Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in
   16  *    the documentation and/or other materials provided with the distribution.
   17  *
   18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   19  *    contributors may be used to endorse or promote products derived
   20  *    from this software without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   32  * THE POSSIBILITY OF SUCH DAMAGE.
   33  */
   34 
   35 #include <sys/cdefs.h>
   36 __FBSDID("$FreeBSD$");
   37 
   38 #ifndef _NETINET_SCTP_OUTPUT_H_
   39 #define _NETINET_SCTP_OUTPUT_H_
   40 
   41 #include <netinet/sctp_header.h>
   42 
   43 #if defined(_KERNEL) || defined(__Userspace__)
   44 
   45 
   46 struct mbuf *
   47 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
   48     struct sctp_tcb *stcb,
   49     struct sctp_scoping *scope,
   50     struct mbuf *m_at,
   51     int cnt_inits_to,
   52     uint16_t *padding_len, uint16_t *chunk_len);
   53 
   54 
   55 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
   56 
   57 
   58 int
   59 sctp_is_address_in_scope(struct sctp_ifa *ifa,
   60     struct sctp_scoping *scope,
   61     int do_update);
   62 
   63 int
   64     sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
   65 
   66 struct sctp_ifa *
   67 sctp_source_address_selection(struct sctp_inpcb *inp,
   68     struct sctp_tcb *stcb,
   69     sctp_route_t *ro, struct sctp_nets *net,
   70     int non_asoc_addr_ok, uint32_t vrf_id);
   71 
   72 int sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro);
   73 
   74 int sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro);
   75 
   76 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int);
   77 
   78 void
   79 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
   80     struct sctp_nets *, struct mbuf *,
   81     int, int,
   82     struct sockaddr *, struct sockaddr *,
   83     struct sctphdr *, struct sctp_init_chunk *,
   84     uint8_t, uint32_t,
   85     uint32_t, uint16_t);
   86 
   87 struct mbuf *
   88 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
   89     struct sctp_chunkhdr *, int *, int *);
   90 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
   91 
   92 int
   93 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *,
   94     struct sctp_nets *);
   95 
   96 void sctp_send_cookie_ack(struct sctp_tcb *);
   97 
   98 void
   99 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
  100     struct sctp_nets *);
  101 
  102 void
  103 sctp_remove_from_wheel(struct sctp_tcb *stcb,
  104     struct sctp_association *asoc,
  105     struct sctp_stream_out *strq, int holds_lock);
  106 
  107 
  108 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
  109 
  110 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
  111 
  112 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int);
  113 
  114 void
  115 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *,
  116     struct sctphdr *,
  117     uint8_t, uint32_t, uint16_t,
  118     uint32_t, uint16_t);
  119 
  120 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked);
  121 
  122 void sctp_send_asconf_ack(struct sctp_tcb *);
  123 
  124 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
  125 
  126 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
  127 
  128 void sctp_toss_old_asconf(struct sctp_tcb *);
  129 
  130 void sctp_fix_ecn_echo(struct sctp_association *);
  131 
  132 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net);
  133 
  134 
  135 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \
  136                                         sizeof(struct sctp_idata_chunk) : \
  137                                         sizeof(struct sctp_data_chunk))
  138 
  139 int
  140 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
  141     struct mbuf *, struct thread *, int);
  142 
  143 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int);
  144 
  145 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int);
  146 
  147 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
  148 
  149 void sctp_send_sack(struct sctp_tcb *, int);
  150 
  151 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int);
  152 
  153 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
  154 
  155 void
  156 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
  157     int, int, int);
  158 
  159 
  160 
  161 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t);
  162 
  163 
  164 void
  165      sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t);
  166 
  167 void
  168 sctp_send_deferred_reset_response(struct sctp_tcb *,
  169     struct sctp_stream_reset_list *,
  170     int);
  171 
  172 void
  173 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *,
  174     uint32_t, uint32_t, uint32_t, uint32_t);
  175 int
  176     sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int);
  177 
  178 int
  179 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *,
  180     uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t);
  181 
  182 void
  183 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *,
  184     struct sctphdr *, uint32_t, struct mbuf *,
  185     uint8_t, uint32_t, uint16_t,
  186     uint32_t, uint16_t);
  187 
  188 void
  189 sctp_send_operr_to(struct sockaddr *, struct sockaddr *,
  190     struct sctphdr *, uint32_t, struct mbuf *,
  191     uint8_t, uint32_t, uint16_t,
  192     uint32_t, uint16_t);
  193 
  194 #endif                          /* _KERNEL || __Userspace__ */
  195 
  196 #if defined(_KERNEL) || defined(__Userspace__)
  197 int
  198 sctp_sosend(struct socket *so,
  199     struct sockaddr *addr,
  200     struct uio *uio,
  201     struct mbuf *top,
  202     struct mbuf *control,
  203     int flags,
  204     struct thread *p
  205 );
  206 
  207 #endif
  208 #endif

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