1/*-
2 * Copyright (c) 2001-2007, 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_var.h,v 1.24 2005/03/06 16:04:19 itojun Exp $ */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/netinet/sctp_var.h 167598 2007-03-15 11:27:14Z rrs $");
35
36#ifndef _NETINET_SCTP_VAR_H_
37#define _NETINET_SCTP_VAR_H_
38
39#include <netinet/sctp_uio.h>
40
41#if defined(_KERNEL)
42
43extern struct pr_usrreqs sctp_usrreqs;
44
45
46#define sctp_feature_on(inp, feature) (inp->sctp_features |= feature)
47#define sctp_feature_off(inp, feature) (inp->sctp_features &= ~feature)
48#define sctp_is_feature_on(inp, feature) (inp->sctp_features & feature)
49#define sctp_is_feature_off(inp, feature) ((inp->sctp_features & feature) == 0)
50
51#define sctp_sbspace(asoc, sb) ((long) (((sb)->sb_hiwat > (asoc)->sb_cc) ? ((sb)->sb_hiwat - (asoc)->sb_cc) : 0))
52
53#define sctp_sbspace_failedmsgs(sb) ((long) (((sb)->sb_hiwat > (sb)->sb_cc) ? ((sb)->sb_hiwat - (sb)->sb_cc) : 0))
54
55#define sctp_sbspace_sub(a,b) ((a > b) ? (a - b) : 0)
56
57/*
58 * I tried to cache the readq entries at one point. But the reality
59 * is that it did not add any performance since this meant we had to
60 * lock the STCB on read. And at that point once you have to do an
61 * extra lock, it really does not matter if the lock is in the ZONE
62 * stuff or in our code. Note that this same problem would occur with
63 * an mbuf cache as well so it is not really worth doing, at least
64 * right now :-D
65 */
66
67#define sctp_free_a_readq(_stcb, _readq) { \
68 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_readq, (_readq)); \
69 SCTP_DECR_READQ_COUNT(); \
70}
71
72#define sctp_alloc_a_readq(_stcb, _readq) { \
73 (_readq) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_readq, struct sctp_queued_to_read); \
74 if ((_readq)) { \
75 SCTP_INCR_READQ_COUNT(); \
76 } \
77}
78
79#define sctp_free_a_strmoq(_stcb, _strmoq) { \
80 if (((_stcb)->asoc.free_strmoq_cnt > sctp_asoc_free_resc_limit) || \
81 (sctppcbinfo.ipi_free_strmoq > sctp_system_free_resc_limit)) { \
82 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_strmoq, (_strmoq)); \
83 SCTP_DECR_STRMOQ_COUNT(); \
84 } else { \
85 TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_strmoq, (_strmoq), next); \
86 (_stcb)->asoc.free_strmoq_cnt++; \
87 atomic_add_int(&sctppcbinfo.ipi_free_strmoq, 1); \
88 } \
89}
90
91#define sctp_alloc_a_strmoq(_stcb, _strmoq) { \
92 if (TAILQ_EMPTY(&(_stcb)->asoc.free_strmoq)) { \
93 (_strmoq) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_strmoq, struct sctp_stream_queue_pending); \
94 if ((_strmoq)) { \
95 SCTP_INCR_STRMOQ_COUNT(); \
96 } \
97 } else { \
98 (_strmoq) = TAILQ_FIRST(&(_stcb)->asoc.free_strmoq); \
99 TAILQ_REMOVE(&(_stcb)->asoc.free_strmoq, (_strmoq), next); \
100 atomic_subtract_int(&sctppcbinfo.ipi_free_strmoq, 1); \
101 (_stcb)->asoc.free_strmoq_cnt--; \
102 } \
103}
104
105
106#define sctp_free_a_chunk(_stcb, _chk) { \
107 if (((_stcb)->asoc.free_chunk_cnt > sctp_asoc_free_resc_limit) || \
108 (sctppcbinfo.ipi_free_chunks > sctp_system_free_resc_limit)) { \
109 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_chunk, (_chk)); \
110 SCTP_DECR_CHK_COUNT(); \
111 } else { \
112 TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
113 (_stcb)->asoc.free_chunk_cnt++; \
114 atomic_add_int(&sctppcbinfo.ipi_free_chunks, 1); \
115 } \
116}
117
118#define sctp_alloc_a_chunk(_stcb, _chk) { \
119 if (TAILQ_EMPTY(&(_stcb)->asoc.free_chunks)) { \
120 (_chk) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_chunk, struct sctp_tmit_chunk); \
121 if ((_chk)) { \
122 SCTP_INCR_CHK_COUNT(); \
123 } \
124 } else { \
125 (_chk) = TAILQ_FIRST(&(_stcb)->asoc.free_chunks); \
126 TAILQ_REMOVE(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
127 atomic_subtract_int(&sctppcbinfo.ipi_free_chunks, 1); \
128 (_stcb)->asoc.free_chunk_cnt--; \
129 } \
130}
131
132
133
134#define sctp_free_remote_addr(__net) { \
135 if ((__net)) { \
136 if (atomic_fetchadd_int(&(__net)->ref_count, -1) == 1) { \
137 SCTP_OS_TIMER_STOP(&(__net)->rxt_timer.timer); \
138 SCTP_OS_TIMER_STOP(&(__net)->pmtu_timer.timer); \
139 SCTP_OS_TIMER_STOP(&(__net)->fr_timer.timer); \
140 if ((__net)->ro.ro_rt) { \
141 RTFREE((__net)->ro.ro_rt); \
142 (__net)->ro.ro_rt = NULL; \
143 } \
144 if ((__net)->src_addr_selected) { \
145 sctp_free_ifa((__net)->ro._s_addr); \
146 (__net)->ro._s_addr = NULL; \
147 } \
148 (__net)->src_addr_selected = 0; \
149 (__net)->dest_state = SCTP_ADDR_NOT_REACHABLE; \
150 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_net, (__net)); \
151 SCTP_DECR_RADDR_COUNT(); \
152 } \
153 } \
154}
155
156#define sctp_sbfree(ctl, stcb, sb, m) { \
157 uint32_t val; \
158 val = atomic_fetchadd_int(&(sb)->sb_cc,-(SCTP_BUF_LEN((m)))); \
159 if (val < SCTP_BUF_LEN((m))) { \
160 panic("sb_cc goes negative"); \
161 } \
162 val = atomic_fetchadd_int(&(sb)->sb_mbcnt,-(MSIZE)); \
163 if (val < MSIZE) { \
164 panic("sb_mbcnt goes negative"); \
165 } \
166 if (SCTP_BUF_IS_EXTENDED(m)) { \
167 val = atomic_fetchadd_int(&(sb)->sb_mbcnt,-(SCTP_BUF_EXTEND_SIZE(m))); \
168 if (val < SCTP_BUF_EXTEND_SIZE(m)) { \
169 panic("sb_mbcnt goes negative2"); \
170 } \
171 } \
172 if (((ctl)->do_not_ref_stcb == 0) && stcb) {\
173 val = atomic_fetchadd_int(&(stcb)->asoc.sb_cc,-(SCTP_BUF_LEN((m)))); \
174 if (val < SCTP_BUF_LEN((m))) {\
175 panic("stcb->sb_cc goes negative"); \
176 } \
177 val = atomic_fetchadd_int(&(stcb)->asoc.sb_mbcnt,-(MSIZE)); \
178 if (val < MSIZE) { \
179 panic("asoc->mbcnt goes negative"); \
180 } \
181 if (SCTP_BUF_IS_EXTENDED(m)) { \
182 val = atomic_fetchadd_int(&(stcb)->asoc.sb_mbcnt,-(SCTP_BUF_EXTEND_SIZE(m))); \
183 if (val < SCTP_BUF_EXTEND_SIZE(m)) { \
184 panic("assoc stcb->mbcnt would go negative"); \
185 } \
186 } \
187 } \
188 if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
189 SCTP_BUF_TYPE(m) != MT_OOBDATA) \
190 atomic_subtract_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
191}
192
193
194#define sctp_sballoc(stcb, sb, m) { \
195 atomic_add_int(&(sb)->sb_cc,SCTP_BUF_LEN((m))); \
196 atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
197 if (SCTP_BUF_IS_EXTENDED(m)) \
198 atomic_add_int(&(sb)->sb_mbcnt,SCTP_BUF_EXTEND_SIZE(m)); \
199 if (stcb) { \
200 atomic_add_int(&(stcb)->asoc.sb_cc,SCTP_BUF_LEN((m))); \
201 atomic_add_int(&(stcb)->asoc.sb_mbcnt, MSIZE); \
202 if (SCTP_BUF_IS_EXTENDED(m)) \
203 atomic_add_int(&(stcb)->asoc.sb_mbcnt,SCTP_BUF_EXTEND_SIZE(m)); \
204 } \
205 if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
206 SCTP_BUF_TYPE(m) != MT_OOBDATA) \
207 atomic_add_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
208}
209
210
211#define sctp_ucount_incr(val) { \
212 val++; \
213}
214
215#define sctp_ucount_decr(val) { \
216 if (val > 0) { \
217 val--; \
218 } else { \
219 val = 0; \
220 } \
221}
222
223#define sctp_mbuf_crush(data) do { \
224 struct mbuf *_m; \
225 _m = (data); \
226 while(_m && (SCTP_BUF_LEN(_m) == 0)) { \
227 (data) = SCTP_BUF_NEXT(_m); \
228 SCTP_BUF_NEXT(_m) = NULL; \
229 sctp_m_free(_m); \
230 _m = (data); \
231 } \
232} while (0)
233
234
235struct sctp_nets;
236struct sctp_inpcb;
237struct sctp_tcb;
238struct sctphdr;
239
240void sctp_ctlinput __P((int, struct sockaddr *, void *));
241int sctp_ctloutput __P((struct socket *, struct sockopt *));
242void sctp_input __P((struct mbuf *, int));
243void sctp_drain __P((void));
244void sctp_init __P((void));
245
246
247void sctp_pcbinfo_cleanup(void);
248
249int sctp_shutdown __P((struct socket *));
250void sctp_notify
251__P((struct sctp_inpcb *, int, struct sctphdr *,
252 struct sockaddr *, struct sctp_tcb *,
253 struct sctp_nets *));
254
255#if defined(INET6)
256 void ip_2_ip6_hdr __P((struct ip6_hdr *, struct ip *));
257
258#endif
259
260 int sctp_bindx(struct socket *, int, struct sockaddr_storage *,
261 int, int, struct proc *);
262
263/* can't use sctp_assoc_t here */
264 int sctp_peeloff(struct socket *, struct socket *, int, caddr_t, int *);
265
266 sctp_assoc_t sctp_getassocid(struct sockaddr *);
267
268
269 int sctp_ingetaddr(struct socket *,
270 struct sockaddr **
271);
272
273 int sctp_peeraddr(struct socket *,
274 struct sockaddr **
275);
276
277 int sctp_listen(struct socket *, int, struct thread *);
278
279 int sctp_accept(struct socket *, struct sockaddr **);
280
281#endif /* _KERNEL */
282
283#endif /* !_NETINET_SCTP_VAR_H_ */
2 * Copyright (c) 2001-2007, 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_var.h,v 1.24 2005/03/06 16:04:19 itojun Exp $ */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/netinet/sctp_var.h 167598 2007-03-15 11:27:14Z rrs $");
35
36#ifndef _NETINET_SCTP_VAR_H_
37#define _NETINET_SCTP_VAR_H_
38
39#include <netinet/sctp_uio.h>
40
41#if defined(_KERNEL)
42
43extern struct pr_usrreqs sctp_usrreqs;
44
45
46#define sctp_feature_on(inp, feature) (inp->sctp_features |= feature)
47#define sctp_feature_off(inp, feature) (inp->sctp_features &= ~feature)
48#define sctp_is_feature_on(inp, feature) (inp->sctp_features & feature)
49#define sctp_is_feature_off(inp, feature) ((inp->sctp_features & feature) == 0)
50
51#define sctp_sbspace(asoc, sb) ((long) (((sb)->sb_hiwat > (asoc)->sb_cc) ? ((sb)->sb_hiwat - (asoc)->sb_cc) : 0))
52
53#define sctp_sbspace_failedmsgs(sb) ((long) (((sb)->sb_hiwat > (sb)->sb_cc) ? ((sb)->sb_hiwat - (sb)->sb_cc) : 0))
54
55#define sctp_sbspace_sub(a,b) ((a > b) ? (a - b) : 0)
56
57/*
58 * I tried to cache the readq entries at one point. But the reality
59 * is that it did not add any performance since this meant we had to
60 * lock the STCB on read. And at that point once you have to do an
61 * extra lock, it really does not matter if the lock is in the ZONE
62 * stuff or in our code. Note that this same problem would occur with
63 * an mbuf cache as well so it is not really worth doing, at least
64 * right now :-D
65 */
66
67#define sctp_free_a_readq(_stcb, _readq) { \
68 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_readq, (_readq)); \
69 SCTP_DECR_READQ_COUNT(); \
70}
71
72#define sctp_alloc_a_readq(_stcb, _readq) { \
73 (_readq) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_readq, struct sctp_queued_to_read); \
74 if ((_readq)) { \
75 SCTP_INCR_READQ_COUNT(); \
76 } \
77}
78
79#define sctp_free_a_strmoq(_stcb, _strmoq) { \
80 if (((_stcb)->asoc.free_strmoq_cnt > sctp_asoc_free_resc_limit) || \
81 (sctppcbinfo.ipi_free_strmoq > sctp_system_free_resc_limit)) { \
82 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_strmoq, (_strmoq)); \
83 SCTP_DECR_STRMOQ_COUNT(); \
84 } else { \
85 TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_strmoq, (_strmoq), next); \
86 (_stcb)->asoc.free_strmoq_cnt++; \
87 atomic_add_int(&sctppcbinfo.ipi_free_strmoq, 1); \
88 } \
89}
90
91#define sctp_alloc_a_strmoq(_stcb, _strmoq) { \
92 if (TAILQ_EMPTY(&(_stcb)->asoc.free_strmoq)) { \
93 (_strmoq) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_strmoq, struct sctp_stream_queue_pending); \
94 if ((_strmoq)) { \
95 SCTP_INCR_STRMOQ_COUNT(); \
96 } \
97 } else { \
98 (_strmoq) = TAILQ_FIRST(&(_stcb)->asoc.free_strmoq); \
99 TAILQ_REMOVE(&(_stcb)->asoc.free_strmoq, (_strmoq), next); \
100 atomic_subtract_int(&sctppcbinfo.ipi_free_strmoq, 1); \
101 (_stcb)->asoc.free_strmoq_cnt--; \
102 } \
103}
104
105
106#define sctp_free_a_chunk(_stcb, _chk) { \
107 if (((_stcb)->asoc.free_chunk_cnt > sctp_asoc_free_resc_limit) || \
108 (sctppcbinfo.ipi_free_chunks > sctp_system_free_resc_limit)) { \
109 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_chunk, (_chk)); \
110 SCTP_DECR_CHK_COUNT(); \
111 } else { \
112 TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
113 (_stcb)->asoc.free_chunk_cnt++; \
114 atomic_add_int(&sctppcbinfo.ipi_free_chunks, 1); \
115 } \
116}
117
118#define sctp_alloc_a_chunk(_stcb, _chk) { \
119 if (TAILQ_EMPTY(&(_stcb)->asoc.free_chunks)) { \
120 (_chk) = SCTP_ZONE_GET(sctppcbinfo.ipi_zone_chunk, struct sctp_tmit_chunk); \
121 if ((_chk)) { \
122 SCTP_INCR_CHK_COUNT(); \
123 } \
124 } else { \
125 (_chk) = TAILQ_FIRST(&(_stcb)->asoc.free_chunks); \
126 TAILQ_REMOVE(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
127 atomic_subtract_int(&sctppcbinfo.ipi_free_chunks, 1); \
128 (_stcb)->asoc.free_chunk_cnt--; \
129 } \
130}
131
132
133
134#define sctp_free_remote_addr(__net) { \
135 if ((__net)) { \
136 if (atomic_fetchadd_int(&(__net)->ref_count, -1) == 1) { \
137 SCTP_OS_TIMER_STOP(&(__net)->rxt_timer.timer); \
138 SCTP_OS_TIMER_STOP(&(__net)->pmtu_timer.timer); \
139 SCTP_OS_TIMER_STOP(&(__net)->fr_timer.timer); \
140 if ((__net)->ro.ro_rt) { \
141 RTFREE((__net)->ro.ro_rt); \
142 (__net)->ro.ro_rt = NULL; \
143 } \
144 if ((__net)->src_addr_selected) { \
145 sctp_free_ifa((__net)->ro._s_addr); \
146 (__net)->ro._s_addr = NULL; \
147 } \
148 (__net)->src_addr_selected = 0; \
149 (__net)->dest_state = SCTP_ADDR_NOT_REACHABLE; \
150 SCTP_ZONE_FREE(sctppcbinfo.ipi_zone_net, (__net)); \
151 SCTP_DECR_RADDR_COUNT(); \
152 } \
153 } \
154}
155
156#define sctp_sbfree(ctl, stcb, sb, m) { \
157 uint32_t val; \
158 val = atomic_fetchadd_int(&(sb)->sb_cc,-(SCTP_BUF_LEN((m)))); \
159 if (val < SCTP_BUF_LEN((m))) { \
160 panic("sb_cc goes negative"); \
161 } \
162 val = atomic_fetchadd_int(&(sb)->sb_mbcnt,-(MSIZE)); \
163 if (val < MSIZE) { \
164 panic("sb_mbcnt goes negative"); \
165 } \
166 if (SCTP_BUF_IS_EXTENDED(m)) { \
167 val = atomic_fetchadd_int(&(sb)->sb_mbcnt,-(SCTP_BUF_EXTEND_SIZE(m))); \
168 if (val < SCTP_BUF_EXTEND_SIZE(m)) { \
169 panic("sb_mbcnt goes negative2"); \
170 } \
171 } \
172 if (((ctl)->do_not_ref_stcb == 0) && stcb) {\
173 val = atomic_fetchadd_int(&(stcb)->asoc.sb_cc,-(SCTP_BUF_LEN((m)))); \
174 if (val < SCTP_BUF_LEN((m))) {\
175 panic("stcb->sb_cc goes negative"); \
176 } \
177 val = atomic_fetchadd_int(&(stcb)->asoc.sb_mbcnt,-(MSIZE)); \
178 if (val < MSIZE) { \
179 panic("asoc->mbcnt goes negative"); \
180 } \
181 if (SCTP_BUF_IS_EXTENDED(m)) { \
182 val = atomic_fetchadd_int(&(stcb)->asoc.sb_mbcnt,-(SCTP_BUF_EXTEND_SIZE(m))); \
183 if (val < SCTP_BUF_EXTEND_SIZE(m)) { \
184 panic("assoc stcb->mbcnt would go negative"); \
185 } \
186 } \
187 } \
188 if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
189 SCTP_BUF_TYPE(m) != MT_OOBDATA) \
190 atomic_subtract_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
191}
192
193
194#define sctp_sballoc(stcb, sb, m) { \
195 atomic_add_int(&(sb)->sb_cc,SCTP_BUF_LEN((m))); \
196 atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
197 if (SCTP_BUF_IS_EXTENDED(m)) \
198 atomic_add_int(&(sb)->sb_mbcnt,SCTP_BUF_EXTEND_SIZE(m)); \
199 if (stcb) { \
200 atomic_add_int(&(stcb)->asoc.sb_cc,SCTP_BUF_LEN((m))); \
201 atomic_add_int(&(stcb)->asoc.sb_mbcnt, MSIZE); \
202 if (SCTP_BUF_IS_EXTENDED(m)) \
203 atomic_add_int(&(stcb)->asoc.sb_mbcnt,SCTP_BUF_EXTEND_SIZE(m)); \
204 } \
205 if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
206 SCTP_BUF_TYPE(m) != MT_OOBDATA) \
207 atomic_add_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
208}
209
210
211#define sctp_ucount_incr(val) { \
212 val++; \
213}
214
215#define sctp_ucount_decr(val) { \
216 if (val > 0) { \
217 val--; \
218 } else { \
219 val = 0; \
220 } \
221}
222
223#define sctp_mbuf_crush(data) do { \
224 struct mbuf *_m; \
225 _m = (data); \
226 while(_m && (SCTP_BUF_LEN(_m) == 0)) { \
227 (data) = SCTP_BUF_NEXT(_m); \
228 SCTP_BUF_NEXT(_m) = NULL; \
229 sctp_m_free(_m); \
230 _m = (data); \
231 } \
232} while (0)
233
234
235struct sctp_nets;
236struct sctp_inpcb;
237struct sctp_tcb;
238struct sctphdr;
239
240void sctp_ctlinput __P((int, struct sockaddr *, void *));
241int sctp_ctloutput __P((struct socket *, struct sockopt *));
242void sctp_input __P((struct mbuf *, int));
243void sctp_drain __P((void));
244void sctp_init __P((void));
245
246
247void sctp_pcbinfo_cleanup(void);
248
249int sctp_shutdown __P((struct socket *));
250void sctp_notify
251__P((struct sctp_inpcb *, int, struct sctphdr *,
252 struct sockaddr *, struct sctp_tcb *,
253 struct sctp_nets *));
254
255#if defined(INET6)
256 void ip_2_ip6_hdr __P((struct ip6_hdr *, struct ip *));
257
258#endif
259
260 int sctp_bindx(struct socket *, int, struct sockaddr_storage *,
261 int, int, struct proc *);
262
263/* can't use sctp_assoc_t here */
264 int sctp_peeloff(struct socket *, struct socket *, int, caddr_t, int *);
265
266 sctp_assoc_t sctp_getassocid(struct sockaddr *);
267
268
269 int sctp_ingetaddr(struct socket *,
270 struct sockaddr **
271);
272
273 int sctp_peeraddr(struct socket *,
274 struct sockaddr **
275);
276
277 int sctp_listen(struct socket *, int, struct thread *);
278
279 int sctp_accept(struct socket *, struct sockaddr **);
280
281#endif /* _KERNEL */
282
283#endif /* !_NETINET_SCTP_VAR_H_ */