xref: /freebsd/sys/netinet/sctp_output.h (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
1 /*-
2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * a) Redistributions of source code must retain the above copyright notice,
8  *   this list of conditions and the following disclaimer.
9  *
10  * b) Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *   the documentation and/or other materials provided with the distribution.
13  *
14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
15  *    contributors may be used to endorse or promote products derived
16  *    from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28  * THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /* $KAME: sctp_output.h,v 1.14 2005/03/06 16:04:18 itojun Exp $	 */
32 
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 #ifndef __sctp_output_h__
37 #define __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_scoping *scope,
47     struct mbuf *m_at,
48     int cnt_inits_to);
49 
50 
51 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
52 
53 
54 int
55 sctp_is_address_in_scope(struct sctp_ifa *ifa,
56     int ipv4_addr_legal,
57     int ipv6_addr_legal,
58     int loopback_scope,
59     int ipv4_local_scope,
60     int local_scope,
61     int site_scope,
62     int do_update);
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
73     sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t * ro);
74 int
75     sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t * ro);
76 
77 void
78 sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int
79 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
80     SCTP_UNUSED
81 #endif
82 );
83 
84 void
85 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *,
86     struct mbuf *, int, int, struct sctphdr *, struct sctp_init_chunk *,
87     uint32_t, uint16_t, int);
88 
89 struct mbuf *
90 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *,
91     struct sctp_chunkhdr *, int *);
92 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *);
93 
94 int
95 sctp_send_cookie_echo(struct mbuf *, int, struct sctp_tcb *,
96     struct sctp_nets *);
97 
98 void sctp_send_cookie_ack(struct sctp_tcb *);
99 
100 void
101 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int,
102     struct sctp_nets *);
103 
104 void
105 sctp_remove_from_wheel(struct sctp_tcb *stcb,
106     struct sctp_association *asoc,
107     struct sctp_stream_out *strq, int holds_lock);
108 
109 
110 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *);
111 
112 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *);
113 
114 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *);
115 
116 void
117 sctp_send_shutdown_complete2(struct mbuf *, int, struct sctphdr *,
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 int
133 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *,
134     struct mbuf *, struct thread *, int);
135 
136 void
137 sctp_insert_on_wheel(struct sctp_tcb *stcb,
138     struct sctp_association *asoc,
139     struct sctp_stream_out *strq, int holdslock);
140 
141 void
142 sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int
143 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
144     SCTP_UNUSED
145 #endif
146 );
147 void
148 sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int
149 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING)
150     SCTP_UNUSED
151 #endif
152 );
153 
154 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *);
155 
156 void sctp_send_sack(struct sctp_tcb *);
157 
158 /* EY 05/07/08 if nr_sacks used, the following function will be called instead of sctp_send_sack */
159 void sctp_send_nr_sack(struct sctp_tcb *);
160 
161 int sctp_send_hb(struct sctp_tcb *, int, struct sctp_nets *);
162 
163 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t);
164 
165 
166 void
167 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *,
168     int, int);
169 
170 
171 
172 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t);
173 
174 
175 void
176 sctp_add_stream_reset_out(struct sctp_tmit_chunk *chk,
177     int number_entries, uint16_t * list,
178     uint32_t seq, uint32_t resp_seq, uint32_t last_sent);
179 
180 void
181 sctp_add_stream_reset_in(struct sctp_tmit_chunk *chk,
182     int number_entries, uint16_t * list,
183     uint32_t seq);
184 
185 void
186 sctp_add_stream_reset_tsn(struct sctp_tmit_chunk *chk,
187     uint32_t seq);
188 
189 void
190 sctp_add_stream_reset_result(struct sctp_tmit_chunk *chk,
191     uint32_t resp_seq, uint32_t result);
192 
193 void
194 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *chk,
195     uint32_t resp_seq, uint32_t result,
196     uint32_t send_una, uint32_t recv_next);
197 
198 int
199 sctp_send_str_reset_req(struct sctp_tcb *stcb,
200     int number_entries,
201     uint16_t * list,
202     uint8_t send_out_req,
203     uint32_t resp_seq,
204     uint8_t send_in_req,
205     uint8_t send_tsn_req,
206     uint8_t add_str,
207     uint16_t adding);
208 
209 
210 void
211 sctp_send_abort(struct mbuf *, int, struct sctphdr *, uint32_t,
212     struct mbuf *, uint32_t, uint16_t);
213 
214 void sctp_send_operr_to(struct mbuf *, int, struct mbuf *, uint32_t, uint32_t, uint16_t);
215 
216 #endif				/* _KERNEL || __Userspace__ */
217 
218 #if defined(_KERNEL) || defined (__Userspace__)
219 int
220 sctp_sosend(struct socket *so,
221     struct sockaddr *addr,
222     struct uio *uio,
223     struct mbuf *top,
224     struct mbuf *control,
225     int flags,
226     struct thread *p
227 );
228 
229 #endif
230 #endif
231