2 * SPDX-License-Identifier: BSD-3-Clause
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.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
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.
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.
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.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #ifndef _NETINET_SCTP_OUTPUT_H_
39 #define _NETINET_SCTP_OUTPUT_H_
41 #include <netinet/sctp_header.h>
43 #if defined(_KERNEL) || defined(__Userspace__)
47 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
48 struct sctp_tcb *stcb,
49 struct sctp_scoping *scope,
52 uint16_t *padding_len, uint16_t *chunk_len);
55 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
59 sctp_is_address_in_scope(struct sctp_ifa *ifa,
60 struct sctp_scoping *scope,
64 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *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);
73 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro);
75 sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro);
77 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int);
80 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
81 struct sctp_nets *, struct mbuf *,
83 struct sockaddr *, struct sockaddr *,
84 struct sctphdr *, struct sctp_init_chunk *,
89 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
90 struct sctp_chunkhdr *, int *, int *);
91 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
94 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *,
97 void sctp_send_cookie_ack(struct sctp_tcb *);
100 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
104 sctp_remove_from_wheel(struct sctp_tcb *stcb,
105 struct sctp_association *asoc,
106 struct sctp_stream_out *strq, int holds_lock);
109 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
111 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
113 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int);
116 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *,
118 uint8_t, uint32_t, uint16_t,
121 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked);
123 void sctp_send_asconf_ack(struct sctp_tcb *);
125 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
127 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
129 void sctp_toss_old_asconf(struct sctp_tcb *);
131 void sctp_fix_ecn_echo(struct sctp_association *);
133 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net);
136 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \
137 sizeof(struct sctp_idata_chunk) : \
138 sizeof(struct sctp_data_chunk))
141 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
142 struct mbuf *, struct thread *, int);
144 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int);
146 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int);
148 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
150 void sctp_send_sack(struct sctp_tcb *, int);
152 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int);
154 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
157 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
162 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t);
166 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t);
169 sctp_send_deferred_reset_response(struct sctp_tcb *,
170 struct sctp_stream_reset_list *,
174 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *,
175 uint32_t, uint32_t, uint32_t, uint32_t);
177 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int);
180 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *,
181 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t);
184 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *,
185 struct sctphdr *, uint32_t, struct mbuf *,
186 uint8_t, uint32_t, uint16_t,
190 sctp_send_operr_to(struct sockaddr *, struct sockaddr *,
191 struct sctphdr *, uint32_t, struct mbuf *,
192 uint8_t, uint32_t, uint16_t,
195 #endif /* _KERNEL || __Userspace__ */
197 #if defined(_KERNEL) || defined(__Userspace__)
199 sctp_sosend(struct socket *so,
200 struct sockaddr *addr,
203 struct mbuf *control,