1/*-
2 * Copyright (c) 2001-2006, 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
32/* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */
33
34#include <sys/cdefs.h>
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35__FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 163953 2006-11-03 15:23:16Z rrs $");
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| 35__FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 163996 2006-11-05 13:25:18Z rrs $"); |
36#ifndef __sctputil_h__
37#define __sctputil_h__
38
39
40
41#if defined(_KERNEL)
42
43#ifdef SCTP_MBUF_LOGGING
44
45struct mbuf *sctp_m_free(struct mbuf *m);
46void sctp_m_freem(struct mbuf *m);
47
48#else
49#define sctp_m_free m_free
50#define sctp_m_freem m_freem
51#endif
52
53
54#define sctp_m_copym m_copym
55
56#define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
57
58
59/*
60 * Function prototypes
61 */
62struct ifaddr *sctp_find_ifa_by_addr(struct sockaddr *sa);
63
64uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
65
66uint32_t sctp_select_a_tag(struct sctp_inpcb *);
67
68int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t);
69
70void sctp_fill_random_store(struct sctp_pcb *);
71
72int
73sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
74 struct sctp_nets *);
75
76int
77sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
78 struct sctp_nets *);
79
80uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
81
82void
83sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *,
84 u_long);
85
86void
87sctp_add_to_readq(struct sctp_inpcb *inp,
88 struct sctp_tcb *stcb,
89 struct sctp_queued_to_read *control,
90 struct sockbuf *sb,
91 int end);
92
93int
94sctp_append_to_readq(struct sctp_inpcb *inp,
95 struct sctp_tcb *stcb,
96 struct sctp_queued_to_read *control,
97 struct mbuf *m,
98 int end,
99 int new_cumack,
100 struct sockbuf *sb);
101
102
103int find_next_best_mtu(int);
104
105void
106 sctp_timeout_handler(void *);
107
108uint32_t
109sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
110 struct sctp_nets *, struct timeval *);
111
112uint32_t sctp_calculate_len(struct mbuf *);
113
114caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
115
116struct sctp_paramhdr *
117sctp_get_next_param(struct mbuf *, int,
118 struct sctp_paramhdr *, int);
119
120int sctp_add_pad_tombuf(struct mbuf *, int);
121
122int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
123
124void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
125
126void
127sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
128 struct sctp_inpcb *new_inp,
129 struct sctp_tcb *stcb);
130
131
132void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
133
134void sctp_report_all_outbound(struct sctp_tcb *);
135
136int sctp_expand_mapping_array(struct sctp_association *);
137
138void sctp_abort_notification(struct sctp_tcb *, int);
139
140/* We abort responding to an IP packet for some reason */
141void
142sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
143 struct mbuf *, int, struct sctphdr *, struct mbuf *);
144
145/* We choose to abort via user input */
146void
147sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
148 struct mbuf *);
149
150void
151sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
152 struct sctp_inpcb *, struct mbuf *);
153
154int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
155uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
156struct sockaddr_in6 *
157sctp_recover_scope(struct sockaddr_in6 *,
158 struct sockaddr_in6 *);
159
160
161
162
163#define sctp_recover_scope_mac(addr, store) do { \
164 if ((addr->sin6_family == AF_INET6) && \
165 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr)) && \
166 (addr->sin6_scope_id == 0)) { \
167 *store = *addr; \
168 if (!sa6_recoverscope(store)) { \
169 addr = store; \
170 } \
171 } \
172 } while (0)
173
174
175
176int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
177
178void sctp_print_address(struct sockaddr *);
179void sctp_print_address_pkt(struct ip *, struct sctphdr *);
180
181void
182sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
183 uint32_t error, int no_lock);
184
185int
186sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
187 int, struct sctpchunk_listhead *);
188
189struct mbuf *sctp_generate_invmanparam(int);
190
191
192#ifdef SCTP_MBCNT_LOGGING
193void
194sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
195 struct sctp_tmit_chunk *);
196
197#else
198#define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
199do { \
200 if (tp1->data != NULL) { \
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201 atomic_add_16(&((asoc)->chunks_on_out_queue), -chk_cnt); \
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| 201 atomic_add_int(&((asoc)->chunks_on_out_queue), -chk_cnt); \ |
202 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
203 atomic_add_int(&((asoc)->total_output_queue_size), -tp1->book_size); \
204 } else { \
205 (asoc)->total_output_queue_size = 0; \
206 } \
207 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
208 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
209 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
210 atomic_add_int(&((stcb)->sctp_socket->so_snd.sb_cc), -tp1->book_size); \
211 } else { \
212 stcb->sctp_socket->so_snd.sb_cc = 0; \
213 } \
214 } \
215 } \
216} while (0)
217
218#endif
219
220#define sctp_free_spbufspace(stcb, asoc, sp) \
221do { \
222 if (sp->data != NULL) { \
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223 atomic_add_16(&(asoc)->chunks_on_out_queue, -1); \
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| 223 atomic_add_int(&(asoc)->chunks_on_out_queue, -1); \ |
224 if ((asoc)->total_output_queue_size >= sp->length) { \
225 atomic_add_int(&(asoc)->total_output_queue_size,sp->length); \
226 } else { \
227 (asoc)->total_output_queue_size = 0; \
228 } \
229 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
230 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
231 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
232 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
233 } else { \
234 stcb->sctp_socket->so_snd.sb_cc = 0; \
235 } \
236 } \
237 } \
238} while (0)
239
240#define sctp_snd_sb_alloc(stcb, sz) \
241do { \
242 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
243 if ((stcb->sctp_socket != NULL) && \
244 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
245 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
246 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
247 } \
248} while (0)
249
250
251int
252sctp_soreceive(struct socket *so, struct sockaddr **psa,
253 struct uio *uio,
254 struct mbuf **mp0,
255 struct mbuf **controlp,
256 int *flagsp);
257
258
259#ifdef SCTP_STAT_LOGGING
260void
261 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
262
263void
264sctp_wakeup_log(struct sctp_tcb *stcb,
265 uint32_t cumtsn,
266 uint32_t wake_cnt, int from);
267
268void sctp_log_strm_del_alt(uint32_t, uint16_t, int);
269
270void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
271
272
273void
274 sctp_log_mb(struct mbuf *m, int from);
275
276void
277sctp_sblog(struct sockbuf *sb,
278 struct sctp_tcb *stcb, int from, int incr);
279
280void
281sctp_log_strm_del(struct sctp_queued_to_read *control,
282 struct sctp_queued_to_read *poschk,
283 int from);
284void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
285void rto_logging(struct sctp_nets *net, int from);
286
287void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
288
289void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
290void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
291void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
292void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
293void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
294void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
295int sctp_fill_stat_log(struct mbuf *);
296void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
297void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
298void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
299
300void sctp_clr_stat_log(void);
301
302#endif
303
304#ifdef SCTP_AUDITING_ENABLED
305void
306sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
307 struct sctp_nets *);
308void sctp_audit_log(uint8_t, uint8_t);
309
310#endif
311
312
313#endif /* _KERNEL */
314#endif
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