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 struct mbuf *
   46 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
   47     struct sctp_tcb *stcb,
   48     struct sctp_scoping *scope,
   49     struct mbuf *m_at,
   50     int cnt_inits_to,
   51     uint16_t *padding_len, uint16_t *chunk_len);
   52 
   53 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
   54 
   55 int
   56 sctp_is_address_in_scope(struct sctp_ifa *ifa,
   57     struct sctp_scoping *scope,
   58     int do_update);
   59 
   60 int
   61     sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
   62 
   63 struct sctp_ifa *
   64 sctp_source_address_selection(struct sctp_inpcb *inp,
   65     struct sctp_tcb *stcb,
   66     sctp_route_t *ro, struct sctp_nets *net,
   67     int non_asoc_addr_ok, uint32_t vrf_id);
   68 
   69 int sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro);
   70 
   71 int sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro);
   72 
   73 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int);
   74 
   75 void
   76 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
   77     struct sctp_nets *, struct mbuf *,
   78     int, int,
   79     struct sockaddr *, struct sockaddr *,
   80     struct sctphdr *, struct sctp_init_chunk *,
   81     uint8_t, uint32_t,
   82     uint32_t, uint16_t);
   83 
   84 struct mbuf *
   85 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
   86     struct sctp_chunkhdr *, int *, int *);
   87 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
   88 
   89 int
   90 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *,
   91     struct sctp_nets *);
   92 
   93 void sctp_send_cookie_ack(struct sctp_tcb *);
   94 
   95 void
   96 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
   97     struct sctp_nets *);
   98 
   99 void
  100 sctp_remove_from_wheel(struct sctp_tcb *stcb,
  101     struct sctp_association *asoc,
  102     struct sctp_stream_out *strq, int holds_lock);
  103 
  104 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
  105 
  106 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
  107 
  108 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int);
  109 
  110 void
  111 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *,
  112     struct sctphdr *,
  113     uint8_t, uint32_t, uint16_t,
  114     uint32_t, uint16_t);
  115 
  116 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked);
  117 
  118 void sctp_send_asconf_ack(struct sctp_tcb *);
  119 
  120 uint32_t sctp_get_frag_point(struct sctp_tcb *);
  121 
  122 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
  123 
  124 void sctp_toss_old_asconf(struct sctp_tcb *);
  125 
  126 void sctp_fix_ecn_echo(struct sctp_association *);
  127 
  128 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net);
  129 
  130 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \
  131                                         sizeof(struct sctp_idata_chunk) : \
  132                                         sizeof(struct sctp_data_chunk))
  133 
  134 int
  135 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
  136     struct mbuf *, struct thread *, int);
  137 
  138 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int);
  139 
  140 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int);
  141 
  142 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
  143 
  144 void sctp_send_sack(struct sctp_tcb *, int);
  145 
  146 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int);
  147 
  148 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
  149 
  150 void
  151 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
  152     int, int, int);
  153 
  154 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t);
  155 
  156 void
  157      sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t);
  158 
  159 void
  160 sctp_send_deferred_reset_response(struct sctp_tcb *,
  161     struct sctp_stream_reset_list *,
  162     int);
  163 
  164 void
  165 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *,
  166     uint32_t, uint32_t, uint32_t, uint32_t);
  167 int
  168     sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int);
  169 
  170 int
  171 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *,
  172     uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t);
  173 
  174 void
  175 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *,
  176     struct sctphdr *, uint32_t, struct mbuf *,
  177     uint8_t, uint32_t, uint16_t,
  178     uint32_t, uint16_t);
  179 
  180 void
  181 sctp_send_operr_to(struct sockaddr *, struct sockaddr *,
  182     struct sctphdr *, uint32_t, struct mbuf *,
  183     uint8_t, uint32_t, uint16_t,
  184     uint32_t, uint16_t);
  185 
  186 #endif                          /* _KERNEL || __Userspace__ */
  187 
  188 #if defined(_KERNEL) || defined(__Userspace__)
  189 int
  190 sctp_sosend(struct socket *so,
  191     struct sockaddr *addr,
  192     struct uio *uio,
  193     struct mbuf *top,
  194     struct mbuf *control,
  195     int flags,
  196     struct thread *p
  197 );
  198 
  199 #endif
  200 #endif

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