2 * Copyright (c) 2001-2007, 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.
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12 * the documentation and/or other materials provided with the distribution.
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15 * contributors may be used to endorse or promote products derived
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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
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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.
47 #if defined(SCTP_LOG_MAXBURST) || defined(SCTP_LOG_RWND) || defined(SCTP_LOG_RWND)
48 #ifndef SCTP_STAT_LOGGING
49 #define SCTP_STAT_LOGGING 1
53 #if defined(SCTP_CWND_LOGGING) || defined(SCTP_CWND_MONITOR) || defined(SCTP_BLK_LOGGING)
54 #ifndef SCTP_STAT_LOGGING
55 #define SCTP_STAT_LOGGING 1
59 #if defined(SCTP_STR_LOGGING) || defined(SCTP_FR_LOGGING) || defined(SCTP_MAP_LOGGING)
60 #ifndef SCTP_STAT_LOGGING
61 #define SCTP_STAT_LOGGING 1
65 #if defined(SCTP_SACK_LOGGING) || defined(SCTP_LOCK_LOGGING) || defined(SCTP_STAT_LOGGING)
66 #ifndef SCTP_STAT_LOGGING
67 #define SCTP_STAT_LOGGING 1
71 #if defined(SCTP_RTTVAR_LOGGING) || defined(SCTP_SB_LOGGING) || defined(SCTP_EARLYFR_LOGGING)
72 #ifndef SCTP_STAT_LOGGING
73 #define SCTP_STAT_LOGGING 1
77 #if defined(SCTP_NAGLE_LOGGING) || defined(SCTP_WAKE_LOGGING) || defined(SCTP_RECV_RWND_LOGGING)
78 #ifndef SCTP_STAT_LOGGING
79 #define SCTP_STAT_LOGGING 1
83 #if defined(SCTP_SACK_RWND_LOGGING) || defined(SCTP_FLIGHT_LOGGING) || defined(SCTP_MBUF_LOGGING)
84 #ifndef SCTP_STAT_LOGGING
85 #define SCTP_STAT_LOGGING 1
89 #ifdef SCTP_ASOCLOG_OF_TSNS
90 void sctp_print_out_track_log(struct sctp_tcb *stcb);
94 #ifdef SCTP_MBUF_LOGGING
95 struct mbuf *sctp_m_free(struct mbuf *m);
96 void sctp_m_freem(struct mbuf *m);
99 #define sctp_m_free m_free
100 #define sctp_m_freem m_freem
104 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
108 * Function prototypes
111 sctp_get_ifa_hash_val(struct sockaddr *addr);
114 sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
116 sctp_find_ifa_in_ifn(struct sctp_ifn *sctp_ifnp, struct sockaddr *addr,
120 sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
122 uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
124 uint32_t sctp_select_a_tag(struct sctp_inpcb *);
126 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t, uint32_t);
128 void sctp_fill_random_store(struct sctp_pcb *);
131 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
135 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
136 struct sctp_nets *, uint32_t);
139 sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
141 uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
144 sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
147 sctp_add_to_readq(struct sctp_inpcb *inp,
148 struct sctp_tcb *stcb,
149 struct sctp_queued_to_read *control,
154 sctp_append_to_readq(struct sctp_inpcb *inp,
155 struct sctp_tcb *stcb,
156 struct sctp_queued_to_read *control,
163 void sctp_iterator_worker(void);
165 int find_next_best_mtu(int);
168 sctp_timeout_handler(void *);
171 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
172 struct sctp_nets *, struct timeval *);
174 uint32_t sctp_calculate_len(struct mbuf *);
176 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
178 struct sctp_paramhdr *
179 sctp_get_next_param(struct mbuf *, int,
180 struct sctp_paramhdr *, int);
182 int sctp_add_pad_tombuf(struct mbuf *, int);
184 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
186 void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
189 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
190 struct sctp_inpcb *new_inp,
191 struct sctp_tcb *stcb);
194 void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
196 void sctp_report_all_outbound(struct sctp_tcb *, int);
198 int sctp_expand_mapping_array(struct sctp_association *);
200 void sctp_abort_notification(struct sctp_tcb *, int);
202 /* We abort responding to an IP packet for some reason */
204 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
205 struct mbuf *, int, struct sctphdr *, struct mbuf *);
207 /* We choose to abort via user input */
209 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
213 sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
214 struct sctp_inpcb *, struct mbuf *);
216 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
217 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
219 struct sockaddr_in6 *
220 sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
222 #define sctp_recover_scope_mac(addr, store) do { \
223 if ((addr->sin6_family == AF_INET6) && \
224 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
226 if (addr->sin6_scope_id == 0) { \
227 if (!sa6_recoverscope(store)) { \
231 in6_clearscope(&addr->sin6_addr); \
238 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
240 void sctp_print_address(struct sockaddr *);
241 void sctp_print_address_pkt(struct ip *, struct sctphdr *);
244 sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
245 uint32_t error, int no_lock, uint32_t strseq);
248 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
249 int, struct sctpchunk_listhead *);
251 struct mbuf *sctp_generate_invmanparam(int);
254 #ifdef SCTP_MBCNT_LOGGING
256 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
257 struct sctp_tmit_chunk *);
260 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
262 if (tp1->data != NULL) { \
263 atomic_add_int(&((asoc)->chunks_on_out_queue), -chk_cnt); \
264 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
265 atomic_add_int(&((asoc)->total_output_queue_size), -tp1->book_size); \
267 (asoc)->total_output_queue_size = 0; \
269 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
270 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
271 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
272 atomic_add_int(&((stcb)->sctp_socket->so_snd.sb_cc), -tp1->book_size); \
274 stcb->sctp_socket->so_snd.sb_cc = 0; \
282 #define sctp_free_spbufspace(stcb, asoc, sp) \
284 if (sp->data != NULL) { \
285 atomic_add_int(&(asoc)->chunks_on_out_queue, -1); \
286 if ((asoc)->total_output_queue_size >= sp->length) { \
287 atomic_add_int(&(asoc)->total_output_queue_size,sp->length); \
289 (asoc)->total_output_queue_size = 0; \
291 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
292 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
293 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
294 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
296 stcb->sctp_socket->so_snd.sb_cc = 0; \
302 #define sctp_snd_sb_alloc(stcb, sz) \
304 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
305 if ((stcb->sctp_socket != NULL) && \
306 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
307 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
308 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
314 sctp_soreceive(struct socket *so, struct sockaddr **psa,
317 struct mbuf **controlp,
321 #ifdef SCTP_STAT_LOGGING
323 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
326 sctp_wakeup_log(struct sctp_tcb *stcb,
328 uint32_t wake_cnt, int from);
330 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
332 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
336 sctp_log_mb(struct mbuf *m, int from);
339 sctp_sblog(struct sockbuf *sb,
340 struct sctp_tcb *stcb, int from, int incr);
343 sctp_log_strm_del(struct sctp_queued_to_read *control,
344 struct sctp_queued_to_read *poschk,
346 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
347 void rto_logging(struct sctp_nets *net, int from);
349 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
351 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
352 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
353 void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
354 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
355 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
356 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
357 int sctp_fill_stat_log(void *, size_t *);
358 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
359 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
360 void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
362 void sctp_clr_stat_log(void);
366 #ifdef SCTP_AUDITING_ENABLED
368 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
370 void sctp_audit_log(uint8_t, uint8_t);