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/10.4/sys/netinet/sctp_output.h 295208 2016-02-03 14:04:07Z tuexen $");
35
36 #ifndef _NETINET_SCTP_OUTPUT_H_
37 #define _NETINET_SCTP_OUTPUT_H_
38
39 #include <netinet/sctp_header.h>
40
41 #if defined(_KERNEL) || defined(__Userspace__)
42
43
44 struct mbuf *
45 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp,
46 struct sctp_tcb *stcb,
47 struct sctp_scoping *scope,
48 struct mbuf *m_at,
49 int cnt_inits_to,
50 uint16_t * padding_len, uint16_t * chunk_len);
51
52
53 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
54
55
56 int
57 sctp_is_address_in_scope(struct sctp_ifa *ifa,
58 struct sctp_scoping *scope,
59 int do_update);
60
61 int
62 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa);
63
64 struct sctp_ifa *
65 sctp_source_address_selection(struct sctp_inpcb *inp,
66 struct sctp_tcb *stcb,
67 sctp_route_t * ro, struct sctp_nets *net,
68 int non_asoc_addr_ok, uint32_t vrf_id);
69
70 int
71 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t * ro);
72 int
73 sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t * ro);
74
75 void
76 sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int
77 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
78 SCTP_UNUSED
79 #endif
80 );
81
82 void
83 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
84 struct sctp_nets *, struct mbuf *,
85 int, int,
86 struct sockaddr *, struct sockaddr *,
87 struct sctphdr *, struct sctp_init_chunk *,
88 uint8_t, uint32_t,
89 uint32_t, uint16_t, int);
90
91 struct mbuf *
92 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
93 struct sctp_chunkhdr *, int *);
94 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
95
96 int
97 sctp_send_cookie_echo(struct mbuf *, int, struct sctp_tcb *,
98 struct sctp_nets *);
99
100 void sctp_send_cookie_ack(struct sctp_tcb *);
101
102 void
103 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
104 struct sctp_nets *);
105
106 void
107 sctp_remove_from_wheel(struct sctp_tcb *stcb,
108 struct sctp_association *asoc,
109 struct sctp_stream_out *strq, int holds_lock);
110
111
112 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
113
114 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
115
116 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int);
117
118 void
119 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *,
120 struct sctphdr *,
121 uint8_t, uint32_t, uint16_t,
122 uint32_t, uint16_t);
123
124 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked);
125
126 void sctp_send_asconf_ack(struct sctp_tcb *);
127
128 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *);
129
130 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *);
131
132 void sctp_toss_old_asconf(struct sctp_tcb *);
133
134 void sctp_fix_ecn_echo(struct sctp_association *);
135
136 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net);
137
138 int
139 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
140 struct mbuf *, struct thread *, int);
141
142 void
143 sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int
144 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
145 SCTP_UNUSED
146 #endif
147 );
148 void
149 sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int
150 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
151 SCTP_UNUSED
152 #endif
153 );
154
155 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
156
157 void sctp_send_sack(struct sctp_tcb *, int);
158
159 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int);
160
161 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
162
163
164 void
165 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
166 int, int, int);
167
168
169
170 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t);
171
172
173 void
174 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t);
175
176 void
177 sctp_send_deferred_reset_response(struct sctp_tcb *,
178 struct sctp_stream_reset_list *,
179 int);
180
181 void
182 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *,
183 uint32_t, uint32_t, uint32_t, uint32_t);
184 int
185 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int);
186
187 int
188 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *,
189 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t);
190
191 void
192 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *,
193 struct sctphdr *, uint32_t, struct mbuf *,
194 uint8_t, uint32_t, uint16_t,
195 uint32_t, uint16_t);
196
197 void
198 sctp_send_operr_to(struct sockaddr *, struct sockaddr *,
199 struct sctphdr *, uint32_t, struct mbuf *,
200 uint8_t, uint32_t, uint16_t,
201 uint32_t, uint16_t);
202
203 #endif /* _KERNEL || __Userspace__ */
204
205 #if defined(_KERNEL) || defined(__Userspace__)
206 int
207 sctp_sosend(struct socket *so,
208 struct sockaddr *addr,
209 struct uio *uio,
210 struct mbuf *top,
211 struct mbuf *control,
212 int flags,
213 struct thread *p
214 );
215
216 #endif
217 #endif
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