2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
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.
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.
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
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25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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28 * THE POSSIBILITY OF SUCH DAMAGE.
32 /* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36 #ifndef __sctputil_h__
37 #define __sctputil_h__
44 * Any new logging added must also define SCTP_STAT_LOGGING if
45 * its not already defined.
48 #if defined(SCTP_LOG_MAXBURST) || defined(SCTP_LOG_RWND)
49 #ifndef SCTP_STAT_LOGGING
50 #define SCTP_STAT_LOGGING 1
54 #if defined(SCTP_CWND_LOGGING) || defined(SCTP_CWND_MONITOR) || defined(SCTP_BLK_LOGGING)
55 #ifndef SCTP_STAT_LOGGING
56 #define SCTP_STAT_LOGGING 1
60 #if defined(SCTP_STR_LOGGING) || defined(SCTP_FR_LOGGING) || defined(SCTP_MAP_LOGGING)
61 #ifndef SCTP_STAT_LOGGING
62 #define SCTP_STAT_LOGGING 1
66 #if defined(SCTP_SACK_LOGGING) || defined(SCTP_LOCK_LOGGING)
67 #ifndef SCTP_STAT_LOGGING
68 #define SCTP_STAT_LOGGING 1
72 #if defined(SCTP_RTTVAR_LOGGING) || defined(SCTP_SB_LOGGING) || defined(SCTP_EARLYFR_LOGGING)
73 #ifndef SCTP_STAT_LOGGING
74 #define SCTP_STAT_LOGGING 1
78 #if defined(SCTP_NAGLE_LOGGING) || defined(SCTP_WAKE_LOGGING) || defined(SCTP_RECV_RWND_LOGGING)
79 #ifndef SCTP_STAT_LOGGING
80 #define SCTP_STAT_LOGGING 1
84 #if defined(SCTP_SACK_RWND_LOGGING) || defined(SCTP_FLIGHT_LOGGING) || defined(SCTP_MBUF_LOGGING)
85 #ifndef SCTP_STAT_LOGGING
86 #define SCTP_STAT_LOGGING 1
90 #if defined(SCTP_LOG_SACK_ARRIVALS)
91 #ifndef SCTP_STAT_LOGGING
92 #define SCTP_STAT_LOGGING 1
97 #ifdef SCTP_ASOCLOG_OF_TSNS
98 void sctp_print_out_track_log(struct sctp_tcb *stcb);
102 #ifdef SCTP_MBUF_LOGGING
103 struct mbuf *sctp_m_free(struct mbuf *m);
104 void sctp_m_freem(struct mbuf *m);
107 #define sctp_m_free m_free
108 #define sctp_m_freem m_freem
112 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
116 * Function prototypes
119 sctp_get_ifa_hash_val(struct sockaddr *addr);
122 sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
125 sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
127 uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
129 uint32_t sctp_select_a_tag(struct sctp_inpcb *);
131 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_tcb *, int, uint32_t, uint32_t);
133 void sctp_fill_random_store(struct sctp_pcb *);
136 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
140 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
141 struct sctp_nets *, uint32_t);
144 sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
146 uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
149 sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
152 sctp_add_to_readq(struct sctp_inpcb *inp,
153 struct sctp_tcb *stcb,
154 struct sctp_queued_to_read *control,
159 sctp_append_to_readq(struct sctp_inpcb *inp,
160 struct sctp_tcb *stcb,
161 struct sctp_queued_to_read *control,
168 void sctp_iterator_worker(void);
170 int find_next_best_mtu(int);
173 sctp_timeout_handler(void *);
176 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
177 struct sctp_nets *, struct timeval *);
179 uint32_t sctp_calculate_len(struct mbuf *);
181 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
183 struct sctp_paramhdr *
184 sctp_get_next_param(struct mbuf *, int,
185 struct sctp_paramhdr *, int);
187 int sctp_add_pad_tombuf(struct mbuf *, int);
189 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
191 void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
194 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
195 struct sctp_inpcb *new_inp,
196 struct sctp_tcb *stcb, int waitflags);
199 void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
201 void sctp_report_all_outbound(struct sctp_tcb *, int);
203 int sctp_expand_mapping_array(struct sctp_association *, uint32_t);
205 void sctp_abort_notification(struct sctp_tcb *, int);
207 /* We abort responding to an IP packet for some reason */
209 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
210 struct mbuf *, int, struct sctphdr *, struct mbuf *, uint32_t);
213 /* We choose to abort via user input */
215 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
219 sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
220 struct sctp_inpcb *, struct mbuf *, uint32_t);
223 sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr,
224 int totaddr, int *error);
227 sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr,
228 int *totaddr, int *num_v4, int *num_v6, int *error, int limit, int *bad_addr);
230 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
231 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
233 struct sockaddr_in6 *
234 sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
236 #define sctp_recover_scope_mac(addr, store) do { \
237 if ((addr->sin6_family == AF_INET6) && \
238 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
240 if (addr->sin6_scope_id == 0) { \
241 if (!sa6_recoverscope(store)) { \
245 in6_clearscope(&addr->sin6_addr); \
252 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
254 void sctp_print_address(struct sockaddr *);
255 void sctp_print_address_pkt(struct ip *, struct sctphdr *);
258 sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
259 uint32_t error, int no_lock, uint32_t strseq);
262 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
263 int, struct sctpchunk_listhead *);
265 struct mbuf *sctp_generate_invmanparam(int);
268 #ifdef SCTP_MBCNT_LOGGING
270 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
271 struct sctp_tmit_chunk *);
274 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
276 if (tp1->data != NULL) { \
277 atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \
278 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
279 atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \
281 (asoc)->total_output_queue_size = 0; \
283 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
284 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
285 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
286 atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \
288 stcb->sctp_socket->so_snd.sb_cc = 0; \
296 #define sctp_free_spbufspace(stcb, asoc, sp) \
298 if (sp->data != NULL) { \
299 atomic_subtract_int(&(asoc)->chunks_on_out_queue, 1); \
300 if ((asoc)->total_output_queue_size >= sp->length) { \
301 atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \
303 (asoc)->total_output_queue_size = 0; \
305 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
306 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
307 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
308 atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
310 stcb->sctp_socket->so_snd.sb_cc = 0; \
316 #define sctp_snd_sb_alloc(stcb, sz) \
318 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
319 if ((stcb->sctp_socket != NULL) && \
320 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
321 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
322 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
328 sctp_soreceive(struct socket *so, struct sockaddr **psa,
331 struct mbuf **controlp,
335 /* For those not passing mbufs, this does the
336 * translations for you. Caller owns memory
337 * of size controllen returned in controlp.
340 sctp_l_soreceive(struct socket *so,
341 struct sockaddr **name,
348 #ifdef SCTP_STAT_LOGGING
350 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
353 sctp_wakeup_log(struct sctp_tcb *stcb,
355 uint32_t wake_cnt, int from);
357 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
359 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
363 sctp_log_mb(struct mbuf *m, int from);
366 sctp_sblog(struct sockbuf *sb,
367 struct sctp_tcb *stcb, int from, int incr);
370 sctp_log_strm_del(struct sctp_queued_to_read *control,
371 struct sctp_queued_to_read *poschk,
373 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
374 void rto_logging(struct sctp_nets *net, int from);
376 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
378 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
379 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
380 void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
381 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
382 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
383 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
384 int sctp_fill_stat_log(void *, size_t *);
385 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
386 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
387 void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
389 void sctp_clr_stat_log(void);
393 #ifdef SCTP_AUDITING_ENABLED
395 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
397 void sctp_audit_log(uint8_t, uint8_t);