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/netinet/sctputil.c

https://bitbucket.org/brucec/sctpdrv
C | 7726 lines | 6422 code | 376 blank | 928 comment | 1694 complexity | 5b1ab6f6258d7e6de6120e6fe7ae9ca4 MD5 | raw file

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  1. /*-

    2. 

  2.  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.

    3. 

  3.  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.

    4. 

  4.  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.

    5. 

  5.  *

    6. 

  6.  * Redistribution and use in source and binary forms, with or without

    7. 

  7.  * modification, are permitted provided that the following conditions are met:

    8. 

  8.  *

    9. 

  9.  * a) Redistributions of source code must retain the above copyright notice,

    10. 

  10.  *    this list of conditions and the following disclaimer.

    11. 

  11.  *

    12. 

  12.  * b) Redistributions in binary form must reproduce the above copyright

    13. 

  13.  *    notice, this list of conditions and the following disclaimer in

    14. 

  14.  *    the documentation and/or other materials provided with the distribution.

    15. 

  15.  *

    16. 

  16.  * c) Neither the name of Cisco Systems, Inc. nor the names of its

    17. 

  17.  *    contributors may be used to endorse or promote products derived

    18. 

  18.  *    from this software without specific prior written permission.

    19. 

  19.  *

    20. 

  20.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    21. 

  21.  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    22. 

  22.  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    23. 

  23.  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

    24. 

  24.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    25. 

  25.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    26. 

  26.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    27. 

  27.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    28. 

  28.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    29. 

  29.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

    30. 

  30.  * THE POSSIBILITY OF SUCH DAMAGE.

    31. 

  31.  */

    32. 

  32. 

    33. 

  33. #ifdef __FreeBSD__

    34. 

  34. #include <sys/cdefs.h>

    35. 

  35. __FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 235828 2012-05-23 11:26:28Z tuexen $");

    36. 

  36. #endif

    37. 

  37. 

    38. 

  38. #include <netinet/sctp_os.h>

    39. 

  39. #include <netinet/sctp_pcb.h>

    40. 

  40. #include <netinet/sctputil.h>

    41. 

  41. #include <netinet/sctp_var.h>

    42. 

  42. #include <netinet/sctp_sysctl.h>

    43. 

  43. #ifdef INET6

    44. 

  44. #if defined(__Userspace__)

    45. 

  45. #include <netinet6/sctp6_var.h>

    46. 

  46. #endif

    47. 

  47. #endif

    48. 

  48. #include <netinet/sctp_header.h>

    49. 

  49. #include <netinet/sctp_output.h>

    50. 

  50. #include <netinet/sctp_uio.h>

    51. 

  51. #include <netinet/sctp_timer.h>

    52. 

  52. #include <netinet/sctp_indata.h>/* for sctp_deliver_data() */

    53. 

  53. #include <netinet/sctp_auth.h>

    54. 

  54. #include <netinet/sctp_asconf.h>

    55. 

  55. #include <netinet/sctp_windows_addr.h>

    56. 

  56. #if defined(__Userspace__)

    57. 

  57. #include <netinet/sctp_constants.h>

    58. 

  58. #endif

    59. 

  59. 

    60. 

  60. #if defined(__APPLE__)

    61. 

  61. #define APPLE_FILE_NO 8

    62. 

  62. #endif

    63. 

  63. 

    64. 

  64. #if defined(__Windows__)

    65. 

  65. #if !defined(SCTP_LOCAL_TRACE_BUF)

    66. 

  66. #include "eventrace_netinet.h"

    67. 

  67. #include "sctputil.tmh" /* this is the file that will be auto generated */

    68. 

  68. #endif

    69. 

  69. #else

    70. 

  70. #ifndef KTR_SCTP

    71. 

  71. #define KTR_SCTP KTR_SUBSYS

    72. 

  72. #endif

    73. 

  73. #endif

    74. 

  74. 

    75. 

  75. extern struct sctp_cc_functions sctp_cc_functions[];

    76. 

  76. extern struct sctp_ss_functions sctp_ss_functions[];

    77. 

  77. 

    78. 

  78. void

    79. 

  79. sctp_sblog(struct sockbuf *sb,

    80. 

  80.     struct sctp_tcb *stcb, int from, int incr)

    81. 

  81. {

    82. 

  82. 	struct sctp_cwnd_log sctp_clog;

    83. 

  83. 

    84. 

  84. 	sctp_clog.x.sb.stcb = stcb;

    85. 

  85. 	sctp_clog.x.sb.so_sbcc = sb->sb_cc;

    86. 

  86. 	if (stcb)

    87. 

  87. 		sctp_clog.x.sb.stcb_sbcc = stcb->asoc.sb_cc;

    88. 

  88. 	else

    89. 

  89. 		sctp_clog.x.sb.stcb_sbcc = 0;

    90. 

  90. 	sctp_clog.x.sb.incr = incr;

    91. 

  91. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    92. 

  92. 	     SCTP_LOG_EVENT_SB,

    93. 

  93. 	     from,

    94. 

  94. 	     sctp_clog.x.misc.log1,

    95. 

  95. 	     sctp_clog.x.misc.log2,

    96. 

  96. 	     sctp_clog.x.misc.log3,

    97. 

  97. 	     sctp_clog.x.misc.log4);

    98. 

  98. }

    99. 

  99. 

    100. 

  100. void

    101. 

  101. sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc)

    102. 

  102. {

    103. 

  103. 	struct sctp_cwnd_log sctp_clog;

    104. 

  104. 

    105. 

  105. 	sctp_clog.x.close.inp = (void *)inp;

    106. 

  106. 	sctp_clog.x.close.sctp_flags = inp->sctp_flags;

    107. 

  107. 	if (stcb) {

    108. 

  108. 		sctp_clog.x.close.stcb = (void *)stcb;

    109. 

  109. 		sctp_clog.x.close.state = (uint16_t)stcb->asoc.state;

    110. 

  110. 	} else {

    111. 

  111. 		sctp_clog.x.close.stcb = 0;

    112. 

  112. 		sctp_clog.x.close.state = 0;

    113. 

  113. 	}

    114. 

  114. 	sctp_clog.x.close.loc = loc;

    115. 

  115. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    116. 

  116. 	     SCTP_LOG_EVENT_CLOSE,

    117. 

  117. 	     0,

    118. 

  118. 	     sctp_clog.x.misc.log1,

    119. 

  119. 	     sctp_clog.x.misc.log2,

    120. 

  120. 	     sctp_clog.x.misc.log3,

    121. 

  121. 	     sctp_clog.x.misc.log4);

    122. 

  122. }

    123. 

  123. 

    124. 

  124. 

    125. 

  125. void

    126. 

  126. rto_logging(struct sctp_nets *net, int from)

    127. 

  127. {

    128. 

  128. 	struct sctp_cwnd_log sctp_clog;

    129. 

  129. 

    130. 

  130. 	memset(&sctp_clog, 0, sizeof(sctp_clog));

    131. 

  131. 	sctp_clog.x.rto.net = (void *) net;

    132. 

  132. 	sctp_clog.x.rto.rtt = net->rtt / 1000;

    133. 

  133. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    134. 

  134. 	     SCTP_LOG_EVENT_RTT,

    135. 

  135. 	     from,

    136. 

  136. 	     sctp_clog.x.misc.log1,

    137. 

  137. 	     sctp_clog.x.misc.log2,

    138. 

  138. 	     sctp_clog.x.misc.log3,

    139. 

  139. 	     sctp_clog.x.misc.log4);

    140. 

  140. }

    141. 

  141. 

    142. 

  142. void

    143. 

  143. sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t tsn, uint16_t sseq, uint16_t stream, int from)

    144. 

  144. {

    145. 

  145. 	struct sctp_cwnd_log sctp_clog;

    146. 

  146. 

    147. 

  147. 	sctp_clog.x.strlog.stcb = stcb;

    148. 

  148. 	sctp_clog.x.strlog.n_tsn = tsn;

    149. 

  149. 	sctp_clog.x.strlog.n_sseq = sseq;

    150. 

  150. 	sctp_clog.x.strlog.e_tsn = 0;

    151. 

  151. 	sctp_clog.x.strlog.e_sseq = 0;

    152. 

  152. 	sctp_clog.x.strlog.strm = stream;

    153. 

  153. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    154. 

  154. 	     SCTP_LOG_EVENT_STRM,

    155. 

  155. 	     from,

    156. 

  156. 	     sctp_clog.x.misc.log1,

    157. 

  157. 	     sctp_clog.x.misc.log2,

    158. 

  158. 	     sctp_clog.x.misc.log3,

    159. 

  159. 	     sctp_clog.x.misc.log4);

    160. 

  160. }

    161. 

  161. 

    162. 

  162. void

    163. 

  163. sctp_log_nagle_event(struct sctp_tcb *stcb, int action)

    164. 

  164. {

    165. 

  165. 	struct sctp_cwnd_log sctp_clog;

    166. 

  166. 

    167. 

  167. 	sctp_clog.x.nagle.stcb = (void *)stcb;

    168. 

  168. 	sctp_clog.x.nagle.total_flight = stcb->asoc.total_flight;

    169. 

  169. 	sctp_clog.x.nagle.total_in_queue = stcb->asoc.total_output_queue_size;

    170. 

  170. 	sctp_clog.x.nagle.count_in_queue = stcb->asoc.chunks_on_out_queue;

    171. 

  171. 	sctp_clog.x.nagle.count_in_flight = stcb->asoc.total_flight_count;

    172. 

  172. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    173. 

  173. 	     SCTP_LOG_EVENT_NAGLE,

    174. 

  174. 	     action,

    175. 

  175. 	     sctp_clog.x.misc.log1,

    176. 

  176. 	     sctp_clog.x.misc.log2,

    177. 

  177. 	     sctp_clog.x.misc.log3,

    178. 

  178. 	     sctp_clog.x.misc.log4);

    179. 

  179. }

    180. 

  180. 

    181. 

  181. void

    182. 

  182. sctp_log_sack(uint32_t old_cumack, uint32_t cumack, uint32_t tsn, uint16_t gaps, uint16_t dups, int from)

    183. 

  183. {

    184. 

  184. 	struct sctp_cwnd_log sctp_clog;

    185. 

  185. 

    186. 

  186. 	sctp_clog.x.sack.cumack = cumack;

    187. 

  187. 	sctp_clog.x.sack.oldcumack = old_cumack;

    188. 

  188. 	sctp_clog.x.sack.tsn = tsn;

    189. 

  189. 	sctp_clog.x.sack.numGaps = gaps;

    190. 

  190. 	sctp_clog.x.sack.numDups = dups;

    191. 

  191. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    192. 

  192. 	     SCTP_LOG_EVENT_SACK,

    193. 

  193. 	     from,

    194. 

  194. 	     sctp_clog.x.misc.log1,

    195. 

  195. 	     sctp_clog.x.misc.log2,

    196. 

  196. 	     sctp_clog.x.misc.log3,

    197. 

  197. 	     sctp_clog.x.misc.log4);

    198. 

  198. }

    199. 

  199. 

    200. 

  200. void

    201. 

  201. sctp_log_map(uint32_t map, uint32_t cum, uint32_t high, int from)

    202. 

  202. {

    203. 

  203. 	struct sctp_cwnd_log sctp_clog;

    204. 

  204. 

    205. 

  205. 	memset(&sctp_clog, 0, sizeof(sctp_clog));

    206. 

  206. 	sctp_clog.x.map.base = map;

    207. 

  207. 	sctp_clog.x.map.cum = cum;

    208. 

  208. 	sctp_clog.x.map.high = high;

    209. 

  209. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    210. 

  210. 	     SCTP_LOG_EVENT_MAP,

    211. 

  211. 	     from,

    212. 

  212. 	     sctp_clog.x.misc.log1,

    213. 

  213. 	     sctp_clog.x.misc.log2,

    214. 

  214. 	     sctp_clog.x.misc.log3,

    215. 

  215. 	     sctp_clog.x.misc.log4);

    216. 

  216. }

    217. 

  217. 

    218. 

  218. void

    219. 

  219. sctp_log_fr(uint32_t biggest_tsn, uint32_t biggest_new_tsn, uint32_t tsn,

    220. 

  220.     int from)

    221. 

  221. {

    222. 

  222. 	struct sctp_cwnd_log sctp_clog;

    223. 

  223. 

    224. 

  224. 	memset(&sctp_clog, 0, sizeof(sctp_clog));

    225. 

  225. 	sctp_clog.x.fr.largest_tsn = biggest_tsn;

    226. 

  226. 	sctp_clog.x.fr.largest_new_tsn = biggest_new_tsn;

    227. 

  227. 	sctp_clog.x.fr.tsn = tsn;

    228. 

  228. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    229. 

  229. 	     SCTP_LOG_EVENT_FR,

    230. 

  230. 	     from,

    231. 

  231. 	     sctp_clog.x.misc.log1,

    232. 

  232. 	     sctp_clog.x.misc.log2,

    233. 

  233. 	     sctp_clog.x.misc.log3,

    234. 

  234. 	     sctp_clog.x.misc.log4);

    235. 

  235. }

    236. 

  236. 

    237. 

  237. void

    238. 

  238. sctp_log_mb(struct mbuf *m, int from)

    239. 

  239. {

    240. 

  240. 	struct sctp_cwnd_log sctp_clog;

    241. 

  241. 

    242. 

  242. 	sctp_clog.x.mb.mp = m;

    243. 

  243. 	sctp_clog.x.mb.mbuf_flags = (uint8_t)(SCTP_BUF_GET_FLAGS(m));

    244. 

  244. 	sctp_clog.x.mb.size = (uint16_t)(SCTP_BUF_LEN(m));

    245. 

  245. 	sctp_clog.x.mb.data = SCTP_BUF_AT(m, 0);

    246. 

  246. 	if (SCTP_BUF_IS_EXTENDED(m)) {

    247. 

  247. 		sctp_clog.x.mb.ext = SCTP_BUF_EXTEND_BASE(m);

    248. 

  248. #if defined(__APPLE__)

    249. 

  249. 		/* APPLE does not use a ref_cnt, but a forward/backward ref queue */

    250. 

  250. #else

    251. 

  251. 		sctp_clog.x.mb.refcnt = (uint8_t)(SCTP_BUF_EXTEND_REFCNT(m));

    252. 

  252. #endif

    253. 

  253. 	} else {

    254. 

  254. 		sctp_clog.x.mb.ext = 0;

    255. 

  255. 		sctp_clog.x.mb.refcnt = 0;

    256. 

  256. 	}

    257. 

  257. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    258. 

  258. 	     SCTP_LOG_EVENT_MBUF,

    259. 

  259. 	     from,

    260. 

  260. 	     sctp_clog.x.misc.log1,

    261. 

  261. 	     sctp_clog.x.misc.log2,

    262. 

  262. 	     sctp_clog.x.misc.log3,

    263. 

  263. 	     sctp_clog.x.misc.log4);

    264. 

  264. }

    265. 

  265. 

    266. 

  266. void

    267. 

  267. sctp_log_strm_del(struct sctp_queued_to_read *control, struct sctp_queued_to_read *poschk,

    268. 

  268.     int from)

    269. 

  269. {

    270. 

  270. 	struct sctp_cwnd_log sctp_clog;

    271. 

  271. 

    272. 

  272. 	if (control == NULL) {

    273. 

  273. 		SCTP_PRINTF("Gak log of NULL?\n");

    274. 

  274. 		return;

    275. 

  275. 	}

    276. 

  276. 	sctp_clog.x.strlog.stcb = control->stcb;

    277. 

  277. 	sctp_clog.x.strlog.n_tsn = control->sinfo_tsn;

    278. 

  278. 	sctp_clog.x.strlog.n_sseq = control->sinfo_ssn;

    279. 

  279. 	sctp_clog.x.strlog.strm = control->sinfo_stream;

    280. 

  280. 	if (poschk != NULL) {

    281. 

  281. 		sctp_clog.x.strlog.e_tsn = poschk->sinfo_tsn;

    282. 

  282. 		sctp_clog.x.strlog.e_sseq = poschk->sinfo_ssn;

    283. 

  283. 	} else {

    284. 

  284. 		sctp_clog.x.strlog.e_tsn = 0;

    285. 

  285. 		sctp_clog.x.strlog.e_sseq = 0;

    286. 

  286. 	}

    287. 

  287. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    288. 

  288. 	     SCTP_LOG_EVENT_STRM,

    289. 

  289. 	     from,

    290. 

  290. 	     sctp_clog.x.misc.log1,

    291. 

  291. 	     sctp_clog.x.misc.log2,

    292. 

  292. 	     sctp_clog.x.misc.log3,

    293. 

  293. 	     sctp_clog.x.misc.log4);

    294. 

  294. }

    295. 

  295. 

    296. 

  296. void

    297. 

  297. sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *net, int augment, uint8_t from)

    298. 

  298. {

    299. 

  299. 	struct sctp_cwnd_log sctp_clog;

    300. 

  300. 

    301. 

  301. 	sctp_clog.x.cwnd.net = net;

    302. 

  302. 	if (stcb->asoc.send_queue_cnt > 255)

    303. 

  303. 		sctp_clog.x.cwnd.cnt_in_send = 255;

    304. 

  304. 	else

    305. 

  305. 		sctp_clog.x.cwnd.cnt_in_send = stcb->asoc.send_queue_cnt;

    306. 

  306. 	if (stcb->asoc.stream_queue_cnt > 255)

    307. 

  307. 		sctp_clog.x.cwnd.cnt_in_str = 255;

    308. 

  308. 	else

    309. 

  309. 		sctp_clog.x.cwnd.cnt_in_str = stcb->asoc.stream_queue_cnt;

    310. 

  310. 

    311. 

  311. 	if (net) {

    312. 

  312. 		sctp_clog.x.cwnd.cwnd_new_value = net->cwnd;

    313. 

  313. 		sctp_clog.x.cwnd.inflight = net->flight_size;

    314. 

  314. 		sctp_clog.x.cwnd.pseudo_cumack = net->pseudo_cumack;

    315. 

  315. 		sctp_clog.x.cwnd.meets_pseudo_cumack = net->new_pseudo_cumack;

    316. 

  316. 		sctp_clog.x.cwnd.need_new_pseudo_cumack = net->find_pseudo_cumack;

    317. 

  317. 	}

    318. 

  318. 	if (SCTP_CWNDLOG_PRESEND == from) {

    319. 

  319. 		sctp_clog.x.cwnd.meets_pseudo_cumack = stcb->asoc.peers_rwnd;

    320. 

  320. 	}

    321. 

  321. 	sctp_clog.x.cwnd.cwnd_augment = augment;

    322. 

  322. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    323. 

  323. 	     SCTP_LOG_EVENT_CWND,

    324. 

  324. 	     from,

    325. 

  325. 	     sctp_clog.x.misc.log1,

    326. 

  326. 	     sctp_clog.x.misc.log2,

    327. 

  327. 	     sctp_clog.x.misc.log3,

    328. 

  328. 	     sctp_clog.x.misc.log4);

    329. 

  329. }

    330. 

  330. 

    331. 

  331. #ifndef __APPLE__

    332. 

  332. void

    333. 

  333. sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from)

    334. 

  334. {

    335. 

  335. 	struct sctp_cwnd_log sctp_clog;

    336. 

  336. 

    337. 

  337. 	memset(&sctp_clog, 0, sizeof(sctp_clog));

    338. 

  338. 	if (inp) {

    339. 

  339.  		sctp_clog.x.lock.sock = (void *) inp->sctp_socket;

    340. 

  340. 

    341. 

  341. 	} else {

    342. 

  342.  		sctp_clog.x.lock.sock = (void *) NULL;

    343. 

  343. 	}

    344. 

  344. 	sctp_clog.x.lock.inp = (void *) inp;

    345. 

  345. #if (defined(__FreeBSD__) && __FreeBSD_version >= 503000) || (defined(__APPLE__))

    346. 

  346. 	if (stcb) {

    347. 

  347. 		sctp_clog.x.lock.tcb_lock = mtx_owned(&stcb->tcb_mtx);

    348. 

  348. 	} else {

    349. 

  349. 		sctp_clog.x.lock.tcb_lock = SCTP_LOCK_UNKNOWN;

    350. 

  350. 	}

    351. 

  351. 	if (inp) {

    352. 

  352. 		sctp_clog.x.lock.inp_lock = mtx_owned(&inp->inp_mtx);

    353. 

  353. 		sctp_clog.x.lock.create_lock = mtx_owned(&inp->inp_create_mtx);

    354. 

  354. 	} else {

    355. 

  355. 		sctp_clog.x.lock.inp_lock = SCTP_LOCK_UNKNOWN;

    356. 

  356. 		sctp_clog.x.lock.create_lock = SCTP_LOCK_UNKNOWN;

    357. 

  357. 	}

    358. 

  358. #if (defined(__FreeBSD__) && __FreeBSD_version <= 602000)

    359. 

  359. 	sctp_clog.x.lock.info_lock = mtx_owned(&SCTP_BASE_INFO(ipi_ep_mtx));

    360. 

  360. #else

    361. 

  361. 	sctp_clog.x.lock.info_lock = rw_wowned(&SCTP_BASE_INFO(ipi_ep_mtx));

    362. 

  362. #endif

    363. 

  363. 	if (inp && (inp->sctp_socket)) {

    364. 

  364. 		sctp_clog.x.lock.sock_lock = mtx_owned(&(inp->sctp_socket->so_rcv.sb_mtx));

    365. 

  365. 		sctp_clog.x.lock.sockrcvbuf_lock = mtx_owned(&(inp->sctp_socket->so_rcv.sb_mtx));

    366. 

  366. 		sctp_clog.x.lock.socksndbuf_lock = mtx_owned(&(inp->sctp_socket->so_snd.sb_mtx));

    367. 

  367. 	} else {

    368. 

  368. 		sctp_clog.x.lock.sock_lock = SCTP_LOCK_UNKNOWN;

    369. 

  369. 		sctp_clog.x.lock.sockrcvbuf_lock = SCTP_LOCK_UNKNOWN;

    370. 

  370. 		sctp_clog.x.lock.socksndbuf_lock = SCTP_LOCK_UNKNOWN;

    371. 

  371. 	}

    372. 

  372. #endif

    373. 

  373. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    374. 

  374. 	     SCTP_LOG_LOCK_EVENT,

    375. 

  375. 	     from,

    376. 

  376. 	     sctp_clog.x.misc.log1,

    377. 

  377. 	     sctp_clog.x.misc.log2,

    378. 

  378. 	     sctp_clog.x.misc.log3,

    379. 

  379. 	     sctp_clog.x.misc.log4);

    380. 

  380. }

    381. 

  381. #endif

    382. 

  382. 

    383. 

  383. void

    384. 

  384. sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *net, int error, int burst, uint8_t from)

    385. 

  385. {

    386. 

  386. 	struct sctp_cwnd_log sctp_clog;

    387. 

  387. 

    388. 

  388. 	memset(&sctp_clog, 0, sizeof(sctp_clog));

    389. 

  389. 	sctp_clog.x.cwnd.net = net;

    390. 

  390. 	sctp_clog.x.cwnd.cwnd_new_value = error;

    391. 

  391. 	sctp_clog.x.cwnd.inflight = net->flight_size;

    392. 

  392. 	sctp_clog.x.cwnd.cwnd_augment = burst;

    393. 

  393. 	if (stcb->asoc.send_queue_cnt > 255)

    394. 

  394. 		sctp_clog.x.cwnd.cnt_in_send = 255;

    395. 

  395. 	else

    396. 

  396. 		sctp_clog.x.cwnd.cnt_in_send = stcb->asoc.send_queue_cnt;

    397. 

  397. 	if (stcb->asoc.stream_queue_cnt > 255)

    398. 

  398. 		sctp_clog.x.cwnd.cnt_in_str = 255;

    399. 

  399. 	else

    400. 

  400. 		sctp_clog.x.cwnd.cnt_in_str = stcb->asoc.stream_queue_cnt;

    401. 

  401. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    402. 

  402. 	     SCTP_LOG_EVENT_MAXBURST,

    403. 

  403. 	     from,

    404. 

  404. 	     sctp_clog.x.misc.log1,

    405. 

  405. 	     sctp_clog.x.misc.log2,

    406. 

  406. 	     sctp_clog.x.misc.log3,

    407. 

  407. 	     sctp_clog.x.misc.log4);

    408. 

  408. }

    409. 

  409. 

    410. 

  410. void

    411. 

  411. sctp_log_rwnd(uint8_t from, uint32_t peers_rwnd, uint32_t snd_size, uint32_t overhead)

    412. 

  412. {

    413. 

  413. 	struct sctp_cwnd_log sctp_clog;

    414. 

  414. 

    415. 

  415. 	sctp_clog.x.rwnd.rwnd = peers_rwnd;

    416. 

  416. 	sctp_clog.x.rwnd.send_size = snd_size;

    417. 

  417. 	sctp_clog.x.rwnd.overhead = overhead;

    418. 

  418. 	sctp_clog.x.rwnd.new_rwnd = 0;

    419. 

  419. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    420. 

  420. 	     SCTP_LOG_EVENT_RWND,

    421. 

  421. 	     from,

    422. 

  422. 	     sctp_clog.x.misc.log1,

    423. 

  423. 	     sctp_clog.x.misc.log2,

    424. 

  424. 	     sctp_clog.x.misc.log3,

    425. 

  425. 	     sctp_clog.x.misc.log4);

    426. 

  426. }

    427. 

  427. 

    428. 

  428. void

    429. 

  429. sctp_log_rwnd_set(uint8_t from, uint32_t peers_rwnd, uint32_t flight_size, uint32_t overhead, uint32_t a_rwndval)

    430. 

  430. {

    431. 

  431. 	struct sctp_cwnd_log sctp_clog;

    432. 

  432. 

    433. 

  433. 	sctp_clog.x.rwnd.rwnd = peers_rwnd;

    434. 

  434. 	sctp_clog.x.rwnd.send_size = flight_size;

    435. 

  435. 	sctp_clog.x.rwnd.overhead = overhead;

    436. 

  436. 	sctp_clog.x.rwnd.new_rwnd = a_rwndval;

    437. 

  437. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    438. 

  438. 	     SCTP_LOG_EVENT_RWND,

    439. 

  439. 	     from,

    440. 

  440. 	     sctp_clog.x.misc.log1,

    441. 

  441. 	     sctp_clog.x.misc.log2,

    442. 

  442. 	     sctp_clog.x.misc.log3,

    443. 

  443. 	     sctp_clog.x.misc.log4);

    444. 

  444. }

    445. 

  445. 

    446. 

  446. void

    447. 

  447. sctp_log_mbcnt(uint8_t from, uint32_t total_oq, uint32_t book, uint32_t total_mbcnt_q, uint32_t mbcnt)

    448. 

  448. {

    449. 

  449. 	struct sctp_cwnd_log sctp_clog;

    450. 

  450. 

    451. 

  451. 	sctp_clog.x.mbcnt.total_queue_size = total_oq;

    452. 

  452. 	sctp_clog.x.mbcnt.size_change = book;

    453. 

  453. 	sctp_clog.x.mbcnt.total_queue_mb_size = total_mbcnt_q;

    454. 

  454. 	sctp_clog.x.mbcnt.mbcnt_change = mbcnt;

    455. 

  455. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    456. 

  456. 	     SCTP_LOG_EVENT_MBCNT,

    457. 

  457. 	     from,

    458. 

  458. 	     sctp_clog.x.misc.log1,

    459. 

  459. 	     sctp_clog.x.misc.log2,

    460. 

  460. 	     sctp_clog.x.misc.log3,

    461. 

  461. 	     sctp_clog.x.misc.log4);

    462. 

  462. }

    463. 

  463. 

    464. 

  464. void

    465. 

  465. sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d)

    466. 

  466. {

    467. 

  467. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    468. 

  468. 	     SCTP_LOG_MISC_EVENT,

    469. 

  469. 	     from,

    470. 

  470. 	     a, b, c, d);

    471. 

  471. }

    472. 

  472. 

    473. 

  473. void

    474. 

  474. sctp_wakeup_log(struct sctp_tcb *stcb, uint32_t wake_cnt, int from)

    475. 

  475. {

    476. 

  476. 	struct sctp_cwnd_log sctp_clog;

    477. 

  477. 

    478. 

  478. 	sctp_clog.x.wake.stcb = (void *)stcb;

    479. 

  479. 	sctp_clog.x.wake.wake_cnt = wake_cnt;

    480. 

  480. 	sctp_clog.x.wake.flight = stcb->asoc.total_flight_count;

    481. 

  481. 	sctp_clog.x.wake.send_q = stcb->asoc.send_queue_cnt;

    482. 

  482. 	sctp_clog.x.wake.sent_q = stcb->asoc.sent_queue_cnt;

    483. 

  483. 

    484. 

  484. 	if (stcb->asoc.stream_queue_cnt < 0xff)

    485. 

  485. 		sctp_clog.x.wake.stream_qcnt = (uint8_t) stcb->asoc.stream_queue_cnt;

    486. 

  486. 	else

    487. 

  487. 		sctp_clog.x.wake.stream_qcnt = 0xff;

    488. 

  488. 

    489. 

  489. 	if (stcb->asoc.chunks_on_out_queue < 0xff)

    490. 

  490. 		sctp_clog.x.wake.chunks_on_oque = (uint8_t) stcb->asoc.chunks_on_out_queue;

    491. 

  491. 	else

    492. 

  492. 		sctp_clog.x.wake.chunks_on_oque = 0xff;

    493. 

  493. 

    494. 

  494. 	sctp_clog.x.wake.sctpflags = 0;

    495. 

  495. 	/* set in the defered mode stuff */

    496. 

  496. 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE)

    497. 

  497. 		sctp_clog.x.wake.sctpflags |= 1;

    498. 

  498. 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT)

    499. 

  499. 		sctp_clog.x.wake.sctpflags |= 2;

    500. 

  500. 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT)

    501. 

  501. 		sctp_clog.x.wake.sctpflags |= 4;

    502. 

  502.         /* what about the sb */

    503. 

  503. 	if (stcb->sctp_socket) {

    504. 

  504. 		struct socket *so = stcb->sctp_socket;

    505. 

  505. 

    506. 

  506. 		sctp_clog.x.wake.sbflags = (uint8_t)((so->so_snd.sb_flags & 0x00ff));

    507. 

  507. 	} else {

    508. 

  508. 		sctp_clog.x.wake.sbflags = 0xff;

    509. 

  509. 	}

    510. 

  510. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    511. 

  511. 	     SCTP_LOG_EVENT_WAKE,

    512. 

  512. 	     from,

    513. 

  513. 	     sctp_clog.x.misc.log1,

    514. 

  514. 	     sctp_clog.x.misc.log2,

    515. 

  515. 	     sctp_clog.x.misc.log3,

    516. 

  516. 	     sctp_clog.x.misc.log4);

    517. 

  517. }

    518. 

  518. 

    519. 

  519. void

    520. 

  520. sctp_log_block(uint8_t from, struct sctp_association *asoc, int sendlen)

    521. 

  521. {

    522. 

  522. 	struct sctp_cwnd_log sctp_clog;

    523. 

  523. 

    524. 

  524. 	sctp_clog.x.blk.onsb = asoc->total_output_queue_size;

    525. 

  525. 	sctp_clog.x.blk.send_sent_qcnt = (uint16_t) (asoc->send_queue_cnt + asoc->sent_queue_cnt);

    526. 

  526. 	sctp_clog.x.blk.peer_rwnd = asoc->peers_rwnd;

    527. 

  527. 	sctp_clog.x.blk.stream_qcnt = (uint16_t) asoc->stream_queue_cnt;

    528. 

  528. 	sctp_clog.x.blk.chunks_on_oque = (uint16_t) asoc->chunks_on_out_queue;

    529. 

  529. 	sctp_clog.x.blk.flight_size = (uint16_t) (asoc->total_flight/1024);

    530. 

  530. 	sctp_clog.x.blk.sndlen = sendlen;

    531. 

  531. 	SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x",

    532. 

  532. 	     SCTP_LOG_EVENT_BLOCK,

    533. 

  533. 	     from,

    534. 

  534. 	     sctp_clog.x.misc.log1,

    535. 

  535. 	     sctp_clog.x.misc.log2,

    536. 

  536. 	     sctp_clog.x.misc.log3,

    537. 

  537. 	     sctp_clog.x.misc.log4);

    538. 

  538. }

    539. 

  539. 

    540. 

  540. int

    541. 

  541. sctp_fill_stat_log(void *optval SCTP_UNUSED, size_t *optsize SCTP_UNUSED)

    542. 

  542. {

    543. 

  543. 	/* May need to fix this if ktrdump does not work */

    544. 

  544. 	return (0);

    545. 

  545. }

    546. 

  546. 

    547. 

  547. #ifdef SCTP_AUDITING_ENABLED

    548. 

  548. uint8_t sctp_audit_data[SCTP_AUDIT_SIZE][2];

    549. 

  549. static int sctp_audit_indx = 0;

    550. 

  550. 

    551. 

  551. static

    552. 

  552. void

    553. 

  553. sctp_print_audit_report(void)

    554. 

  554. {

    555. 

  555. 	int i;

    556. 

  556. 	int cnt;

    557. 

  557. 

    558. 

  558. 	cnt = 0;

    559. 

  559. 	for (i = sctp_audit_indx; i < SCTP_AUDIT_SIZE; i++) {

    560. 

  560. 		if ((sctp_audit_data[i][0] == 0xe0) &&

    561. 

  561. 		    (sctp_audit_data[i][1] == 0x01)) {

    562. 

  562. 			cnt = 0;

    563. 

  563. 			SCTP_PRINTF("\n");

    564. 

  564. 		} else if (sctp_audit_data[i][0] == 0xf0) {

    565. 

  565. 			cnt = 0;

    566. 

  566. 			SCTP_PRINTF("\n");

    567. 

  567. 		} else if ((sctp_audit_data[i][0] == 0xc0) &&

    568. 

  568. 		    (sctp_audit_data[i][1] == 0x01)) {

    569. 

  569. 			SCTP_PRINTF("\n");

    570. 

  570. 			cnt = 0;

    571. 

  571. 		}

    572. 

  572. 		SCTP_PRINTF("%2.2x%2.2x ", (uint32_t) sctp_audit_data[i][0],

    573. 

  573. 			    (uint32_t) sctp_audit_data[i][1]);

    574. 

  574. 		cnt++;

    575. 

  575. 		if ((cnt % 14) == 0)

    576. 

  576. 			SCTP_PRINTF("\n");

    577. 

  577. 	}

    578. 

  578. 	for (i = 0; i < sctp_audit_indx; i++) {

    579. 

  579. 		if ((sctp_audit_data[i][0] == 0xe0) &&

    580. 

  580. 		    (sctp_audit_data[i][1] == 0x01)) {

    581. 

  581. 			cnt = 0;

    582. 

  582. 			SCTP_PRINTF("\n");

    583. 

  583. 		} else if (sctp_audit_data[i][0] == 0xf0) {

    584. 

  584. 			cnt = 0;

    585. 

  585. 			SCTP_PRINTF("\n");

    586. 

  586. 		} else if ((sctp_audit_data[i][0] == 0xc0) &&

    587. 

  587. 		    (sctp_audit_data[i][1] == 0x01)) {

    588. 

  588. 			SCTP_PRINTF("\n");

    589. 

  589. 			cnt = 0;

    590. 

  590. 		}

    591. 

  591. 		SCTP_PRINTF("%2.2x%2.2x ", (uint32_t) sctp_audit_data[i][0],

    592. 

  592. 			    (uint32_t) sctp_audit_data[i][1]);

    593. 

  593. 		cnt++;

    594. 

  594. 		if ((cnt % 14) == 0)

    595. 

  595. 			SCTP_PRINTF("\n");

    596. 

  596. 	}

    597. 

  597. 	SCTP_PRINTF("\n");

    598. 

  598. }

    599. 

  599. 

    600. 

  600. void

    601. 

  601. sctp_auditing(int from, struct sctp_inpcb *inp, struct sctp_tcb *stcb,

    602. 

  602.     struct sctp_nets *net)

    603. 

  603. {

    604. 

  604. 	int resend_cnt, tot_out, rep, tot_book_cnt;

    605. 

  605. 	struct sctp_nets *lnet;

    606. 

  606. 	struct sctp_tmit_chunk *chk;

    607. 

  607. 

    608. 

  608. 	sctp_audit_data[sctp_audit_indx][0] = 0xAA;

    609. 

  609. 	sctp_audit_data[sctp_audit_indx][1] = 0x000000ff & from;

    610. 

  610. 	sctp_audit_indx++;

    611. 

  611. 	if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    612. 

  612. 		sctp_audit_indx = 0;

    613. 

  613. 	}

    614. 

  614. 	if (inp == NULL) {

    615. 

  615. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    616. 

  616. 		sctp_audit_data[sctp_audit_indx][1] = 0x01;

    617. 

  617. 		sctp_audit_indx++;

    618. 

  618. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    619. 

  619. 			sctp_audit_indx = 0;

    620. 

  620. 		}

    621. 

  621. 		return;

    622. 

  622. 	}

    623. 

  623. 	if (stcb == NULL) {

    624. 

  624. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    625. 

  625. 		sctp_audit_data[sctp_audit_indx][1] = 0x02;

    626. 

  626. 		sctp_audit_indx++;

    627. 

  627. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    628. 

  628. 			sctp_audit_indx = 0;

    629. 

  629. 		}

    630. 

  630. 		return;

    631. 

  631. 	}

    632. 

  632. 	sctp_audit_data[sctp_audit_indx][0] = 0xA1;

    633. 

  633. 	sctp_audit_data[sctp_audit_indx][1] =

    634. 

  634. 	    (0x000000ff & stcb->asoc.sent_queue_retran_cnt);

    635. 

  635. 	sctp_audit_indx++;

    636. 

  636. 	if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    637. 

  637. 		sctp_audit_indx = 0;

    638. 

  638. 	}

    639. 

  639. 	rep = 0;

    640. 

  640. 	tot_book_cnt = 0;

    641. 

  641. 	resend_cnt = tot_out = 0;

    642. 

  642. 	TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {

    643. 

  643. 		if (chk->sent == SCTP_DATAGRAM_RESEND) {

    644. 

  644. 			resend_cnt++;

    645. 

  645. 		} else if (chk->sent < SCTP_DATAGRAM_RESEND) {

    646. 

  646. 			tot_out += chk->book_size;

    647. 

  647. 			tot_book_cnt++;

    648. 

  648. 		}

    649. 

  649. 	}

    650. 

  650. 	if (resend_cnt != stcb->asoc.sent_queue_retran_cnt) {

    651. 

  651. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    652. 

  652. 		sctp_audit_data[sctp_audit_indx][1] = 0xA1;

    653. 

  653. 		sctp_audit_indx++;

    654. 

  654. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    655. 

  655. 			sctp_audit_indx = 0;

    656. 

  656. 		}

    657. 

  657. 		SCTP_PRINTF("resend_cnt:%d asoc-tot:%d\n",

    658. 

  658. 			    resend_cnt, stcb->asoc.sent_queue_retran_cnt);

    659. 

  659. 		rep = 1;

    660. 

  660. 		stcb->asoc.sent_queue_retran_cnt = resend_cnt;

    661. 

  661. 		sctp_audit_data[sctp_audit_indx][0] = 0xA2;

    662. 

  662. 		sctp_audit_data[sctp_audit_indx][1] =

    663. 

  663. 		    (0x000000ff & stcb->asoc.sent_queue_retran_cnt);

    664. 

  664. 		sctp_audit_indx++;

    665. 

  665. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    666. 

  666. 			sctp_audit_indx = 0;

    667. 

  667. 		}

    668. 

  668. 	}

    669. 

  669. 	if (tot_out != stcb->asoc.total_flight) {

    670. 

  670. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    671. 

  671. 		sctp_audit_data[sctp_audit_indx][1] = 0xA2;

    672. 

  672. 		sctp_audit_indx++;

    673. 

  673. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    674. 

  674. 			sctp_audit_indx = 0;

    675. 

  675. 		}

    676. 

  676. 		rep = 1;

    677. 

  677. 		SCTP_PRINTF("tot_flt:%d asoc_tot:%d\n", tot_out,

    678. 

  678. 			    (int)stcb->asoc.total_flight);

    679. 

  679. 		stcb->asoc.total_flight = tot_out;

    680. 

  680. 	}

    681. 

  681. 	if (tot_book_cnt != stcb->asoc.total_flight_count) {

    682. 

  682. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    683. 

  683. 		sctp_audit_data[sctp_audit_indx][1] = 0xA5;

    684. 

  684. 		sctp_audit_indx++;

    685. 

  685. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    686. 

  686. 			sctp_audit_indx = 0;

    687. 

  687. 		}

    688. 

  688. 		rep = 1;

    689. 

  689. 		SCTP_PRINTF("tot_flt_book:%d\n", tot_book_cnt);

    690. 

  690. 

    691. 

  691. 		stcb->asoc.total_flight_count = tot_book_cnt;

    692. 

  692. 	}

    693. 

  693. 	tot_out = 0;

    694. 

  694. 	TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {

    695. 

  695. 		tot_out += lnet->flight_size;

    696. 

  696. 	}

    697. 

  697. 	if (tot_out != stcb->asoc.total_flight) {

    698. 

  698. 		sctp_audit_data[sctp_audit_indx][0] = 0xAF;

    699. 

  699. 		sctp_audit_data[sctp_audit_indx][1] = 0xA3;

    700. 

  700. 		sctp_audit_indx++;

    701. 

  701. 		if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    702. 

  702. 			sctp_audit_indx = 0;

    703. 

  703. 		}

    704. 

  704. 		rep = 1;

    705. 

  705. 		SCTP_PRINTF("real flight:%d net total was %d\n",

    706. 

  706. 			    stcb->asoc.total_flight, tot_out);

    707. 

  707. 		/* now corrective action */

    708. 

  708. 		TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {

    709. 

  709. 

    710. 

  710. 			tot_out = 0;

    711. 

  711. 			TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {

    712. 

  712. 				if ((chk->whoTo == lnet) &&

    713. 

  713. 				    (chk->sent < SCTP_DATAGRAM_RESEND)) {

    714. 

  714. 					tot_out += chk->book_size;

    715. 

  715. 				}

    716. 

  716. 			}

    717. 

  717. 			if (lnet->flight_size != tot_out) {

    718. 

  718. 				SCTP_PRINTF("net:%p flight was %d corrected to %d\n",

    719. 

  719. 					    lnet, lnet->flight_size,

    720. 

  720. 					    tot_out);

    721. 

  721. 				lnet->flight_size = tot_out;

    722. 

  722. 			}

    723. 

  723. 		}

    724. 

  724. 	}

    725. 

  725. 	if (rep) {

    726. 

  726. 		sctp_print_audit_report();

    727. 

  727. 	}

    728. 

  728. }

    729. 

  729. 

    730. 

  730. void

    731. 

  731. sctp_audit_log(uint8_t ev, uint8_t fd)

    732. 

  732. {

    733. 

  733. 

    734. 

  734. 	sctp_audit_data[sctp_audit_indx][0] = ev;

    735. 

  735. 	sctp_audit_data[sctp_audit_indx][1] = fd;

    736. 

  736. 	sctp_audit_indx++;

    737. 

  737. 	if (sctp_audit_indx >= SCTP_AUDIT_SIZE) {

    738. 

  738. 		sctp_audit_indx = 0;

    739. 

  739. 	}

    740. 

  740. }

    741. 

  741. 

    742. 

  742. #endif

    743. 

  743. 

    744. 

  744. /*

    745. 

  745.  * sctp_stop_timers_for_shutdown() should be called

    746. 

  746.  * when entering the SHUTDOWN_SENT or SHUTDOWN_ACK_SENT

    747. 

  747.  * state to make sure that all timers are stopped.

    748. 

  748.  */

    749. 

  749. void

    750. 

  750. sctp_stop_timers_for_shutdown(struct sctp_tcb *stcb)

    751. 

  751. {

    752. 

  752. 	struct sctp_association *asoc;

    753. 

  753. 	struct sctp_nets *net;

    754. 

  754. 

    755. 

  755. 	asoc = &stcb->asoc;

    756. 

  756. 

    757. 

  757. 	(void)SCTP_OS_TIMER_STOP(&asoc->dack_timer.timer);

    758. 

  758. 	(void)SCTP_OS_TIMER_STOP(&asoc->strreset_timer.timer);

    759. 

  759. 	(void)SCTP_OS_TIMER_STOP(&asoc->asconf_timer.timer);

    760. 

  760. 	(void)SCTP_OS_TIMER_STOP(&asoc->autoclose_timer.timer);

    761. 

  761. 	(void)SCTP_OS_TIMER_STOP(&asoc->delayed_event_timer.timer);

    762. 

  762. 	TAILQ_FOREACH(net, &asoc->nets, sctp_next) {

    763. 

  763. 		(void)SCTP_OS_TIMER_STOP(&net->pmtu_timer.timer);

    764. 

  764. 		(void)SCTP_OS_TIMER_STOP(&net->hb_timer.timer);

    765. 

  765. 	}

    766. 

  766. }

    767. 

  767. 

    768. 

  768. /*

    769. 

  769.  * a list of sizes based on typical mtu's, used only if next hop size not

    770. 

  770.  * returned.

    771. 

  771.  */

    772. 

  772. static uint32_t sctp_mtu_sizes[] = {

    773. 

  773. 	68,

    774. 

  774. 	296,

    775. 

  775. 	508,

    776. 

  776. 	512,

    777. 

  777. 	544,

    778. 

  778. 	576,

    779. 

  779. 	1006,

    780. 

  780. 	1492,

    781. 

  781. 	1500,

    782. 

  782. 	1536,

    783. 

  783. 	2002,

    784. 

  784. 	2048,

    785. 

  785. 	4352,

    786. 

  786. 	4464,

    787. 

  787. 	8166,

    788. 

  788. 	17914,

    789. 

  789. 	32000,

    790. 

  790. 	65535

    791. 

  791. };

    792. 

  792. 

    793. 

  793. /*

    794. 

  794.  * Return the largest MTU smaller than val. If there is no

    795. 

  795.  * entry, just return val.

    796. 

  796.  */

    797. 

  797. uint32_t

    798. 

  798. sctp_get_prev_mtu(uint32_t val)

    799. 

  799. {

    800. 

  800. 	uint32_t i;

    801. 

  801. 

    802. 

  802. 	if (val <= sctp_mtu_sizes[0]) {

    803. 

  803. 		return (val);

    804. 

  804. 	}

    805. 

  805. 	for (i = 1; i < (sizeof(sctp_mtu_sizes) / sizeof(uint32_t)); i++) {

    806. 

  806. 		if (val <= sctp_mtu_sizes[i]) {

    807. 

  807. 			break;

    808. 

  808. 		}

    809. 

  809. 	}

    810. 

  810. 	return (sctp_mtu_sizes[i - 1]);

    811. 

  811. }

    812. 

  812. 

    813. 

  813. /*

    814. 

  814.  * Return the smallest MTU larger than val. If there is no

    815. 

  815.  * entry, just return val.

    816. 

  816.  */

    817. 

  817. uint32_t

    818. 

  818. sctp_get_next_mtu(uint32_t val)

    819. 

  819. {

    820. 

  820. 	/* select another MTU that is just bigger than this one */

    821. 

  821. 	uint32_t i;

    822. 

  822. 

    823. 

  823. 	for (i = 0; i < (sizeof(sctp_mtu_sizes) / sizeof(uint32_t)); i++) {

    824. 

  824. 		if (val < sctp_mtu_sizes[i]) {

    825. 

  825. 			return (sctp_mtu_sizes[i]);

    826. 

  826. 		}

    827. 

  827. 	}

    828. 

  828. 	return (val);

    829. 

  829. }

    830. 

  830. 

    831. 

  831. void

    832. 

  832. sctp_fill_random_store(struct sctp_pcb *m)

    833. 

  833. {

    834. 

  834. 	/*

    835. 

  835. 	 * Here we use the MD5/SHA-1 to hash with our good randomNumbers and

    836. 

  836. 	 * our counter. The result becomes our good random numbers and we

    837. 

  837. 	 * then setup to give these out. Note that we do no locking to

    838. 

  838. 	 * protect this. This is ok, since if competing folks call this we

    839. 

  839. 	 * will get more gobbled gook in the random store which is what we

    840. 

  840. 	 * want. There is a danger that two guys will use the same random

    841. 

  841. 	 * numbers, but thats ok too since that is random as well :->

    842. 

  842. 	 */

    843. 

  843. 	m->store_at = 0;

    844. 

  844. 	(void)sctp_hmac(SCTP_HMAC, (uint8_t *)m->random_numbers,

    845. 

  845. 	    sizeof(m->random_numbers), (uint8_t *)&m->random_counter,

    846. 

  846. 	    sizeof(m->random_counter), (uint8_t *)m->random_store);

    847. 

  847. 	m->random_counter++;

    848. 

  848. }

    849. 

  849. 

    850. 

  850. uint32_t

    851. 

  851. sctp_select_initial_TSN(struct sctp_pcb *inp)

    852. 

  852. {

    853. 

  853. 	/*

    854. 

  854. 	 * A true implementation should use random selection process to get

    855. 

  855. 	 * the initial stream sequence number, using RFC1750 as a good

    856. 

  856. 	 * guideline

    857. 

  857. 	 */

    858. 

  858. 	uint32_t x, *xp;

    859. 

  859. 	uint8_t *p;

    860. 

  860. 	int store_at, new_store;

    861. 

  861. 

    862. 

  862. 	if (inp->initial_sequence_debug != 0) {

    863. 

  863. 		uint32_t ret;

    864. 

  864. 

    865. 

  865. 		ret = inp->initial_sequence_debug;

    866. 

  866. 		inp->initial_sequence_debug++;

    867. 

  867. 		return (ret);

    868. 

  868. 	}

    869. 

  869.  retry:

    870. 

  870. 	store_at = inp->store_at;

    871. 

  871. 	new_store = store_at + sizeof(uint32_t);

    872. 

  872. 	if (new_store >= (SCTP_SIGNATURE_SIZE-3)) {

    873. 

  873. 		new_store = 0;

    874. 

  874. 	}

    875. 

  875. 	if (!atomic_cmpset_int(&inp->store_at, store_at, new_store)) {

    876. 

  876. 		goto retry;

    877. 

  877. 	}

    878. 

  878. 	if (new_store == 0) {

    879. 

  879. 		/* Refill the random store */

    880. 

  880. 		sctp_fill_random_store(inp);

    881. 

  881. 	}

    882. 

  882. 	p = &inp->random_store[store_at];

    883. 

  883. 	xp = (uint32_t *)p;

    884. 

  884. 	x = *xp;

    885. 

  885. 	return (x);

    886. 

  886. }

    887. 

  887. 

    888. 

  888. uint32_t

    889. 

  889. sctp_select_a_tag(struct sctp_inpcb *inp, uint16_t lport, uint16_t rport, int check)

    890. 

  890. {

    891. 

  891. 	uint32_t x;

    892. 

  892. 	struct timeval now;

    893. 

  893. 

    894. 

  894. 	if (check) {

    895. 

  895. 		(void)SCTP_GETTIME_TIMEVAL(&now);

    896. 

  896. 	}

    897. 

  897. 	for (;;) {

    898. 

  898. 		x = sctp_select_initial_TSN(&inp->sctp_ep);

    899. 

  899. 		if (x == 0) {

    900. 

  900. 			/* we never use 0 */

    901. 

  901. 			continue;

    902. 

  902. 		}

    903. 

  903. 		if (!check || sctp_is_vtag_good(x, lport, rport, &now)) {

    904. 

  904. 			break;

    905. 

  905. 		}

    906. 

  906. 	}

    907. 

  907. 	return (x);

    908. 

  908. }

    909. 

  909. 

    910. 

  910. int

    911. 

  911. sctp_init_asoc(struct sctp_inpcb *m, struct sctp_tcb *stcb,

    912. 

  912.                uint32_t override_tag, uint32_t vrf_id)

    913. 

  913. {

    914. 

  914. 	struct sctp_association *asoc;

    915. 

  915. 	/*

    916. 

  916. 	 * Anything set to zero is taken care of by the allocation routine's

    917. 

  917. 	 * bzero

    918. 

  918. 	 */

    919. 

  919. 

    920. 

  920. 	/*

    921. 

  921. 	 * Up front select what scoping to apply on addresses I tell my peer

    922. 

  922. 	 * Not sure what to do with these right now, we will need to come up

    923. 

  923. 	 * with a way to set them. We may need to pass them through from the

    924. 

  924. 	 * caller in the sctp_aloc_assoc() function.

    925. 

  925. 	 */

    926. 

  926. 	int i;

    927. 

  927. 

    928. 

  928. 	asoc = &stcb->asoc;

    929. 

  929. 	/* init all variables to a known value. */

    930. 

  930. 	SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_INUSE);

    931. 

  931. 	asoc->max_burst = m->sctp_ep.max_burst;

    932. 

  932. 	asoc->fr_max_burst = m->sctp_ep.fr_max_burst;

    933. 

  933. 	asoc->heart_beat_delay = TICKS_TO_MSEC(m->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);

    934. 

  934. 	asoc->cookie_life = m->sctp_ep.def_cookie_life;

    935. 

  935. 	asoc->sctp_cmt_on_off = m->sctp_cmt_on_off;

    936. 

  936. 	asoc->ecn_allowed = m->sctp_ecn_enable;

    937. 

  937. 	asoc->sctp_nr_sack_on_off = (uint8_t)SCTP_BASE_SYSCTL(sctp_nr_sack_on_off);

    938. 

  938. 	asoc->sctp_cmt_pf = (uint8_t)0;

    939. 

  939. 	asoc->sctp_frag_point = m->sctp_frag_point;

    940. 

  940. 	asoc->sctp_features = m->sctp_features;

    941. 

  941. 	asoc->default_dscp = m->sctp_ep.default_dscp;

    942. 

  942. #ifdef INET6

    943. 

  943. 	if (m->sctp_ep.default_flowlabel) {

    944. 

  944. 		asoc->default_flowlabel = m->sctp_ep.default_flowlabel;

    945. 

  945. 	} else {

    946. 

  946. 		if (m->ip_inp.inp.inp_flags & IN6P_AUTOFLOWLABEL) {

    947. 

  947. 			asoc->default_flowlabel = sctp_select_initial_TSN(&m->sctp_ep);

    948. 

  948. 			asoc->default_flowlabel &= 0x000fffff;

    949. 

  949. 			asoc->default_flowlabel |= 0x80000000;

    950. 

  950. 		} else {

    951. 

  951. 			asoc->default_flowlabel = 0;

    952. 

  952. 		}

    953. 

  953. 	}

    954. 

  954. #endif

    955. 

  955. 	asoc->sb_send_resv = 0;

    956. 

  956. 	if (override_tag) {

    957. 

  957. 		asoc->my_vtag = override_tag;

    958. 

  958. 	} else {

    959. 

  959. 		asoc->my_vtag = sctp_select_a_tag(m, stcb->sctp_ep->sctp_lport, stcb->rport,  1);

    960. 

  960. 	}

    961. 

  961. 	/* Get the nonce tags */

    962. 

  962. 	asoc->my_vtag_nonce = sctp_select_a_tag(m, stcb->sctp_ep->sctp_lport, stcb->rport, 0);

    963. 

  963. 	asoc->peer_vtag_nonce = sctp_select_a_tag(m, stcb->sctp_ep->sctp_lport, stcb->rport, 0);

    964. 

  964. 	asoc->vrf_id = vrf_id;

    965. 

  965. 

    966. 

  966. #ifdef SCTP_ASOCLOG_OF_TSNS

    967. 

  967. 	asoc->tsn_in_at = 0;

    968. 

  968.  	asoc->tsn_out_at = 0;

    969. 

  969. 	asoc->tsn_in_wrapped = 0;

    970. 

  970. 	asoc->tsn_out_wrapped = 0;

    971. 

  971. 	asoc->cumack_log_at = 0;

    972. 

  972. 	asoc->cumack_log_atsnt = 0;

    973. 

  973. #endif

    974. 

  974. #ifdef SCTP_FS_SPEC_LOG

    975. 

  975. 	asoc->fs_index = 0;

    976. 

  976. #endif

    977. 

  977. 	asoc->refcnt = 0;

    978. 

  978. 	asoc->assoc_up_sent = 0;

    979. 

  979. 	asoc->asconf_seq_out = asoc->str_reset_seq_out = asoc->init_seq_number = asoc->sending_seq =

    980. 

  980. 	    sctp_select_initial_TSN(&m->sctp_ep);

    981. 

  981. 	asoc->asconf_seq_out_acked = asoc->asconf_seq_out - 1;

    982. 

  982. 	/* we are optimisitic here */

    983. 

  983. 	asoc->peer_supports_pktdrop = 1;

    984. 

  984. 	asoc->peer_supports_nat = 0;

    985. 

  985. 	asoc->sent_queue_retran_cnt = 0;

    986. 

  986. 

    987. 

  987. 	/* for CMT */

    988. 

  988.         asoc->last_net_cmt_send_started = NULL;

    989. 

  989. 

    990. 

  990. 	/* This will need to be adjusted */

    991. 

  991. 	asoc->last_acked_seq = asoc->init_seq_number - 1;

    992. 

  992. 	asoc->advanced_peer_ack_point = asoc->last_acked_seq;

    993. 

  993. 	asoc->asconf_seq_in = asoc->last_acked_seq;

    994. 

  994. 

    995. 

  995. 	/* here we are different, we hold the next one we expect */

    996. 

  996. 	asoc->str_reset_seq_in = asoc->last_acked_seq + 1;

    997. 

  997. 

    998. 

  998. 	asoc->initial_init_rto_max = m->sctp_ep.initial_init_rto_max;

    999. 

  999. 	asoc->initial_rto = m->sctp_ep.initial_rto;

    1000. 

  1000. 

    1001. 

  1001. 	asoc->max_init_times = m->sctp_ep.max_init_times;

    1002. 

  1002. 	asoc->max_send_times = m->sctp_ep.max_send_times;

    1003. 

  1003. 	asoc->def_net_failure = m->sctp_ep.def_net_failure;

    1004. 

  1004. 	asoc->def_net_pf_threshold = m->sctp_ep.def_net_pf_threshold;

    1005. 

  1005. 	asoc->free_chunk_cnt = 0;

    1006. 

  1006. 

    1007. 

  1007. 	asoc->iam_blocking = 0;

    1008. 

  1008. 	asoc->context = m->sctp_context;

    1009. 

  1009. 	asoc->local_strreset_support = m->local_strreset_support;

    1010. 

  1010. 	asoc->def_send = m->def_send;

    1011. 

  1011. 	asoc->delayed_ack = TICKS_TO_MSEC(m->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);

    1012. 

  1012. 	asoc->sack_freq = m->sctp_ep.sctp_sack_freq;

    1013. 

  1013. 	asoc->pr_sctp_cnt = 0;

    1014. 

  1014. 	asoc->total_output_queue_size = 0;

    1015. 

  1015. 

    1016. 

  1016. 	if (m->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {

    1017. 

  1017. 		struct in6pcb *inp6;

    1018. 

  1018. 

    1019. 

  1019. 		/* Its a V6 socket */

    1020. 

  1020. 		inp6 = (struct in6pcb *)m;

    1021. 

  1021. 		asoc->ipv6_addr_legal = 1;

    1022. 

  1022. 		/* Now look at the binding flag to see if V4 will be legal */

    1023. 

  1023. 		if (SCTP_IPV6_V6ONLY(inp6) == 0) {

    1024. 

  1024. 			asoc->ipv4_addr_legal = 1;

    1025. 

  1025. 		} else {

    1026. 

  1026. 			/* V4 addresses are NOT legal on the association */

    1027. 

  1027. 			asoc->ipv4_addr_legal = 0;

    1028. 

  1028. 		}

    1029. 

  1029. 	} else {

    1030. 

  1030. 		/* Its a V4 socket, no - V6 */

    1031. 

  1031. 		asoc->ipv4_addr_legal = 1;

    1032. 

  1032. 		asoc->ipv6_addr_legal = 0;

    1033. 

  1033. 	}

    1034. 

  1034. 

    1035. 

  1035. 	asoc->my_rwnd = max(SCTP_SB_LIMIT_RCV(m->sctp_socket), SCTP_MINIMAL_RWND);

    1036. 

  1036. 	asoc->peers_rwnd = SCTP_SB_LIMIT_RCV(m->sctp_socket);

    1037. 

  1037. 

    1038. 

  1038. 	asoc->smallest_mtu = m->sctp_frag_point;

    1039. 

  1039. 	asoc->minrto = m->sctp_ep.sctp_minrto;

    1040. 

  1040. 	asoc->maxrto = m->sctp_ep.sctp_maxrto;

    1041. 

  1041. 

    1042. 

  1042. 	asoc->locked_on_sending = NULL;

    1043. 

  1043. 	asoc->stream_locked_on = 0;

    1044. 

  1044. 	asoc->ecn_echo_cnt_onq = 0;

    1045. 

  1045. 	asoc->stream_locked = 0;

    1046. 

  1046. 

    1047. 

  1047. 	asoc->send_sack = 1;

    1048. 

  1048. 

    1049. 

  1049. 	LIST_INIT(&asoc->sctp_restricted_addrs);

    1050. 

  1050. 

    1051. 

  1051. 	TAILQ_INIT(&asoc->nets);

    1052. 

  1052. 	TAILQ_INIT(&asoc->pending_reply_queue);

    1053. 

  1053. 	TAILQ_INIT(&asoc->asconf_ack_sent);

    1054. 

  1054. 	/* Setup to fill the hb random cache at first HB */

    1055. 

  1055. 	asoc->hb_random_idx = 4;

    1056. 

  1056. 

    1057. 

  1057. 	asoc->sctp_autoclose_ticks = m->sctp_ep.auto_close_time;

    1058. 

  1058. 

    1059. 

  1059. 	stcb->asoc.congestion_control_module = m->sctp_ep.sctp_default_cc_module;

    1060. 

  1060. 	stcb->asoc.cc_functions = sctp_cc_functions[m->sctp_ep.sctp_default_cc_module];

    1061. 

  1061. 

    1062. 

  1062. 	stcb->asoc.stream_scheduling_module = m->sctp_ep.sctp_default_ss_module;

    1063. 

  1063. 	stcb->asoc.ss_functions = sctp_ss_functions[m->sctp_ep.sctp_default_ss_module];

    1064. 

  1064. 

    1065. 

  1065. 	/*

    1066. 

  1066. 	 * Now the stream parameters, here we allocate space for all streams

    1067. 

  1067. 	 * that we request by default.

    1068. 

  1068. 	 */

    1069. 

  1069. 	asoc->strm_realoutsize = asoc->streamoutcnt = asoc->pre_open_streams =

    1070. 

  1070. 	    m->sctp_ep.pre_open_stream_count;

    1071. 

  1071. 	SCTP_MALLOC(asoc->strmout, struct sctp_stream_out *,

    1072. 

  1072. 		    asoc->streamoutcnt * sizeof(struct sctp_stream_out),

    1073. 

  1073. 		    SCTP_M_STRMO);

    1074. 

  1074. 	if (asoc->strmout == NULL) {

    1075. 

  1075. 		/* big trouble no memory */

    1076. 

  1076. 		SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);

    1077. 

  1077. 		return (ENOMEM);

    1078. 

  1078. 	}

    1079. 

  1079. 	for (i = 0; i < asoc->streamoutcnt; i++) {

    1080. 

  1080. 		/*

    1081. 

  1081. 		 * inbound side must be set to 0xffff, also NOTE when we get

    1082. 

  1082. 		 * the INIT-ACK back (for INIT sender) we MUST reduce the

    1083. 

  1083. 		 * count (streamoutcnt) but first check if we sent to any of

    1084. 

  1084. 		 * the upper streams that were dropped (if some were). Those

    1085. 

  1085. 		 * that were dropped must be notified to the upper layer as

    1086. 

  1086. 		 * failed to send.

    1087. 

  1087. 		 */

    1088. 

  1088. 		asoc->strmout[i].next_sequence_sent = 0x0;

    1089. 

  1089. 		TAILQ_INIT(&asoc->strmout[i].outqueue);

    1090. 

  1090. 		asoc->strmout[i].stream_no = i;

    1091. 

  1091. 		asoc->strmout[i].last_msg_incomplete = 0;

    1092. 

  1092. 		asoc->ss_functions.sctp_ss_init_stream(&asoc->strmout[i], NULL);

    1093. 

  1093. 	}

    1094. 

  1094. 	asoc->ss_functions.sctp_ss_init(stcb, asoc, 0);

    1095. 

  1095. 

    1096. 

  1096. 	/* Now the mapping array */

    1097. 

  1097. 	asoc->mapping_array_size = SCTP_INITIAL_MAPPING_ARRAY;

    1098. 

  1098. 	SCTP_MALLOC(asoc->mapping_array, uint8_t *, asoc->mapping_array_size,

    1099. 

  1099. 		    SCTP_M_MAP);

    1100. 

  1100. 	if (asoc->mapping_array == NULL) {

    1101. 

  1101. 		SCTP_FREE(asoc->strmout, SCTP_M_STRMO);

    1102. 

  1102. 		SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);

    1103. 

  1103. 		return (ENOMEM);

    1104. 

  1104. 	}

    1105. 

  1105. 	memset(asoc->mapping_array, 0, asoc->mapping_array_size);

    1106. 

  1106. 	SCTP_MALLOC(asoc->nr_mapping_array, uint8_t *, asoc->mapping_array_size,

    1107. 

  1107. 	    SCTP_M_MAP);

    1108. 

  1108. 	if (asoc->nr_mapping_array == NULL) {

    1109. 

  1109. 		SCTP_FREE(asoc->strmout, SCTP_M_STRMO);

    1110. 

  1110. 		SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);

    1111. 

  1111. 		SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM);

    1112. 

  1112. 		return (ENOMEM);

    1113. 

  1113. 	}

    1114. 

  1114. 	memset(asoc->nr_mapping_array, 0, asoc->mapping_array_size);

    1115. 

  1115. 

    1116. 

  1116. 	/* Now the init of the other outqueues */

    1117. 

  1117. 	TAILQ_INIT(&asoc->free_chunks);

    1118. 

  1118. 	TAILQ_INIT(&asoc->control_send_queue);

    1119. 

  1119. 	TAILQ_INIT(&asoc->asconf_send_queue);

    1120. 

  1120. 	TAILQ_INIT(&asoc->send_queue);

    1121. 

  1121. 	TAILQ_INIT(&asoc->sent_queue);

    1122. 

  1122. 	TAILQ_INIT(&asoc->reasmqueue);

    1123. 

  1123. 	TAILQ_INIT(&asoc->resetHead);

    1124. 

  1124. 	asoc->max_inbound_streams = m->sctp_ep.max_open_streams_intome;

    1125. 

  1125. 	TAILQ_INIT(&asoc->asconf_queue);

    1126. 

  1126. 	/* authentication fields */

    1127. 

  1127. 	asoc->authinfo.random = NULL;

    1128. 

  1128. 	asoc->authinfo.active_keyid = 0;

    1129. 

  1129. 	asoc->authinfo.assoc_key = NULL;

    1130. 

  1130. 	asoc->authinfo.assoc_keyid = 0;

    1131. 

  1131. 	asoc->authinfo.recv_key = NULL;

    1132. 

  1132. 	asoc->authinfo.recv_keyid = 0;

    1133. 

  1133. 	LIST_INIT(&asoc->shared_keys);

    1134. 

  1134. 	asoc->marked_retrans = 0;

    1135. 

  1135. 	asoc->port = m->sctp_ep.port;

    1136. 

  1136. 	asoc->timoinit = 0;

    1137. 

  1137. 	asoc->timodata = 0;

    1138. 

  1138. 	asoc->timosack = 0;

    1139. 

  1139. 	asoc->timoshutdown = 0;

    1140. 

  1140. 	asoc->timoheartbeat = 0;

    1141. 

  1141. 	asoc->timocookie = 0;

    1142. 

  1142. 	asoc->timoshutdownack = 0;

    1143. 

  1143. 	(void)SCTP_GETTIME_TIMEVAL(&asoc->start_time);

    1144. 

  1144. 	asoc->discontinuity_time = asoc->start_time;

    1145. 

  1145. 	/* sa_ignore MEMLEAK {memory is put in the assoc mapping array and freed later when

    1146. 

  1146. 	 * the association is freed.

    1147. 

  1147. 	 */

    1148. 

  1148. 	return (0);

    1149. 

  1149. }

    1150. 

  1150. 

    1151. 

  1151. void

    1152. 

  1152. sctp_print_mapping_array(struct sctp_association *asoc)

    1153. 

  1153. {

    1154. 

  1154. 	unsigned int i, limit;

    1155. 

  1155. 

    1156. 

  1156. 	SCTP_PRINTF("Mapping array size: %d, baseTSN: %8.8x, cumAck: %8.8x, highestTSN: (%8.8x, %8.8x).\n",

    1157. 

  1157. 	            asoc->mapping_array_size,

    1158. 

  1158. 	            asoc->mapping_array_base_tsn,

    1159. 

  1159. 	            asoc->cumulative_tsn,

    1160. 

  1160. 	            asoc->highest_tsn_inside_map,

    1161. 

  1161. 	            asoc->highest_tsn_inside_nr_map);

    1162. 

  1162. 	for (limit = asoc->mapping_array_size; limit > 1; limit--) {

    1163. 

  1163. 		if (asoc->mapping_array[limit - 1] != 0) {

    1164. 

  1164. 			break;

    1165. 

  1165. 		}

    1166. 

  1166. 	}

    1167. 

  1167. 	SCTP_PRINTF("Renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit);

    1168. 

  1168. 	for (i = 0; i < limit; i++) {

    1169. 

  1169. 		SCTP_PRINTF("%2.2x%c", asoc->mapping_array[i], ((i + 1) % 16) ? ' ' : '\n');

    1170. 

  1170. 	}

    1171. 

  1171. 	if (limit % 16)

    1172. 

  1172. 		SCTP_PRINTF("\n");

    1173. 

  1173. 	for (limit = asoc->mapping_array_size; limit > 1; limit--) {

    1174. 

  1174. 		if (asoc->nr_mapping_array[limit - 1]) {

    1175. 

  1175. 			break;

    1176. 

  1176. 		}

    1177. 

  1177. 	}

    1178. 

  1178. 	SCTP_PRINTF("Non renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit);

    1179. 

  1179. 	for (i = 0; i < limit; i++) {

    1180. 

  1180. 		SCTP_PRINTF("%2.2x%c", asoc->nr_mapping_array[i], ((i + 1) % 16) ? ' ': '\n');

    1181. 

  1181. 	}

    1182. 

  1182. 	if (limit % 16)

    1183. 

  1183. 		SCTP_PRINTF("\n");

    1184. 

  1184. }

    1185. 

  1185. 

    1186. 

  1186. int

    1187. 

  1187. sctp_expand_mapping_array(struct sctp_association *asoc, uint32_t needed)

    1188. 

  1188. {

    1189. 

  1189. 	/* mapping array needs to grow */

    1190. 

  1190. 	uint8_t *new_array1, *new_array2;

    1191. 

  1191. 	uint32_t new_size;

    1192. 

  1192. 

    1193. 

  1193. 	new_size = asoc->mapping_array_size + ((needed+7)/8 + SCTP_MAPPING_ARRAY_INCR);

    1194. 

  1194. 	SCTP_MALLOC(new_array1, uint8_t *, new_size, SCTP_M_MAP);

    1195. 

  1195. 	SCTP_MALLOC(new_array2, uint8_t *, new_size, SCTP_M_MAP);

    1196. 

  1196. 	if ((new_array1 == NULL) || (new_array2 == NULL)) {

    1197. 

  1197. 		/* can't get more, forget it */

    1198. 

  1198. 		SCTP_PRINTF("No memory for expansion of SCTP mapping array %d\n", new_size);

    1199. 

  1199. 		if (new_array1) {

    1200. 

  1200. 			SCTP_FREE(new_array1, SCTP_M_MAP);

    1201. 

  1201. 		}

    1202. 

  1202. 		if (new_array2) {

    1203. 

  1203. 			SCTP_FREE(new_array2, SCTP_M_MAP);

    1204. 

  1204. 		}

    1205. 

  1205. 		return (-1);

    1206. 

  1206. 	}

    1207. 

  1207. 	memset(new_array1, 0, new_size);

    1208. 

  1208. 	memset(new_array2, 0, new_size);

    1209. 

  1209. 	memcpy(new_array1, asoc->mapping_array, asoc->mapping_array_size);

    1210. 

  1210. 	memcpy(new_array2, asoc->nr_mapping_array, asoc->mapping_array_size);

    1211. 

  1211. 	SCTP_FREE(asoc->mapping_array, SCTP_M_MAP);

    1212. 

  1212. 	SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP);

    1213. 

  1213. 	asoc->mapping_array = new_array1;

    1214. 

  1214. 	asoc->nr_mapping_array = new_array2;

    1215. 

  1215. 	asoc->mapping_array_size = new_size;

    1216. 

  1216. 	return (0);

    1217. 

  1217. }

    1218. 

  1218. 

    1219. 

  1219. 

    1220. 

  1220. static void

    1221. 

  1221. sctp_iterator_work(struct sctp_iterator *it)

    1222. 

  1222. {

    1223. 

  1223. 	int iteration_count = 0;

    1224. 

  1224. 	int inp_skip = 0;

    1225. 

  1225. 	int first_in = 1;

    1226. 

  1226. 	struct sctp_inpcb *tinp;

    1227. 

  1227. 

    1228. 

  1228. 	SCTP_INP_INFO_RLOCK();

    1229. 

  1229. 	SCTP_ITERATOR_LOCK();

    1230. 

  1230.  	if (it->inp) {

    1231. 

  1231. 		SCTP_INP_RLOCK(it->inp);

    1232. 

  1232. 		SCTP_INP_DECR_REF(it->inp);

    1233. 

  1233. 	}

    1234. 

  1234. 	if (it->inp == NULL) {

    1235. 

  1235. 		/* iterator is complete */

    1236. 

  1236. done_with_iterator:

    1237. 

  1237. 		SCTP_ITERATOR_UNLOCK();

    1238. 

  1238. 		SCTP_INP_INFO_RUNLOCK();

    1239. 

  1239. 		if (it->function_atend != NULL) {

    1240. 

  1240. 			(*it->function_atend) (it->pointer, it->val);

    1241. 

  1241. 		}

    1242. 

  1242. 		SCTP_FREE(it, SCTP_M_ITER);

    1243. 

  1243. 		return;

    1244. 

  1244. 	}

    1245. 

  1245. select_a_new_ep:

    1246. 

  1246. 	if (first_in) {

    1247. 

  1247. 		first_in = 0;

    1248. 

  1248. 	} else {

    1249. 

  1249. 		SCTP_INP_RLOCK(it->inp);

    1250. 

  1250. 	}

    1251. 

  1251. 	while (((it->pcb_flags) &&

    1252. 

  1252. 		((it->inp->sctp_flags & it->pcb_flags) != it->pcb_flags)) ||

    1253. 

  1253. 	       ((it->pcb_features) &&

    1254. 

  1254. 		((it->inp->sctp_features & it->pcb_features) != it->pcb_features))) {

    1255. 

  1255. 		/* endpoint flags or features don't match, so keep looking */

    1256. 

  1256. 		if (it->iterator_flags & SCTP_ITERATOR_DO_SINGLE_INP) {

    1257. 

  1257. 			SCTP_INP_RUNLOCK(it->inp);

    1258. 

  1258. 			goto done_with_iterator;

    1259. 

  1259. 		}

    1260. 

  1260. 		tinp = it->inp;

    1261. 

  1261. 		it->inp = LIST_NEXT(it->inp, sctp_list);

    1262. 

  1262. 		SCTP_INP_RUNLOCK(tinp);

    1263. 

  1263. 		if (it->inp == NULL) {

    1264. 

  1264. 			goto done_with_iterator;

    1265. 

  1265. 		}

    1266. 

  1266. 		SCTP_INP_RLOCK(it->inp);

    1267. 

  1267. 	}

    1268. 

  1268. 	/* now go through each assoc which is in the desired state */

    1269. 

  1269. 	if (it->done_current_ep == 0) {

    1270. 

  1270. 		if (it->function_inp != NULL)

    1271. 

  1271. 			inp_skip = (*it->function_inp)(it->inp, it->pointer, it->val);

    1272. 

  1272. 		it->done_current_ep = 1;

    1273. 

  1273. 	}

    1274. 

  1274. 	if (it->stcb == NULL) {

    1275. 

  1275. 		/* run the per instance function */

    1276. 

  1276. 		it->stcb = LIST_FIRST(&it->inp->sctp_asoc_list);

    1277. 

  1277. 	}

    1278. 

  1278. 	if ((inp_skip) || it->stcb == NULL) {

    1279. 

  1279. 		if (it->function_inp_end != NULL) {

    1280. 

  1280. 			inp_skip = (*it->function_inp_end)(it->inp,

    1281. 

  1281. 							   it->pointer,

    1282. 

  1282. 							   it->val);

    1283. 

  1283. 		}

    1284. 

  1284. 		SCTP_INP_RUNLOCK(it->inp);

    1285. 

  1285. 		goto no_stcb;

    1286. 

  1286. 	}

    1287. 

  1287. 	while (it->stcb) {

    1288. 

  1288. 		SCTP_TCB_LOCK(it->stcb);

    1289. 

  1289. 		if (it->asoc_state && ((it->stcb->asoc.state & it->asoc_state) != it->asoc_state)) {

    1290. 

  1290. 			/* not in the right state... keep looking */

    1291. 

  1291. 			SCTP_TCB_UNLOCK(it->stcb);

    1292. 

  1292. 			goto next_assoc;

    1293. 

  1293. 		}

    1294. 

  1294. 		/* see if we have limited out the iterator loop */

    1295. 

  1295. 		iteration_count++;

    1296. 

  1296. 		if (iteration_count > SCTP_ITERATOR_MAX_AT_ONCE) {

    1297. 

  1297. 			/* Pause to let others grab the lock */

    1298. 

  1298. 			atomic_add_int(&it->stcb->asoc.refcnt, 1);

    1299. 

  1299. 			SCTP_TCB_UNLOCK(it->stcb);

    1300. 

  1300. 			SCTP_INP_INCR_REF(it->inp);

    1301. 

  1301. 			SCTP_INP_RUNLOCK(it->inp);

    1302. 

  1302. 			SCTP_ITERATOR_UNLOCK();

    1303. 

  1303. 			SCTP_INP_INFO_RUNLOCK();

    1304. 

  1304. 			SCTP_INP_INFO_RLOCK();

    1305. 

  1305. 			SCTP_ITERATOR_LOCK();

    1306. 

  1306. 			if (sctp_it_ctl.iterator_flags) {

    1307. 

  1307. 				/* We won't be staying here */

    1308. 

  1308. 				SCTP_INP_DECR_REF(it->inp);

    1309. 

  1309. 				atomic_add_int(&it->stcb->asoc.refcnt, -1);

    1310. 

  1310. #if !defined(__FreeBSD__)

    1311. 

  1311. 				if (sctp_it_ctl.iterator_flags &

    1312. 

  1312. 				   SCTP_ITERATOR_MUST_EXIT) {

    1313. 

  1313. 					goto done_with_iterator;

    1314. 

  1314. 				}

    1315. 

  1315. #endif

    1316. 

  1316. 				if (sctp_it_ctl.iterator_flags &

    1317. 

  1317. 				   SCTP_ITERATOR_STOP_CUR_IT) {

    1318. 

  1318. 					sctp_it_ctl.iterator_flags &= ~SCTP_ITERATOR_STOP_CUR_IT;

    1319. 

  1319. 					goto done_with_iterator;

    1320. 

  1320. 				}

    1321. 

  1321. 				if (sctp_it_ctl.iterator_flags &

    1322. 

  1322. 				   SCTP_ITERATOR_STOP_CUR_INP) {

    1323. 

  1323. 					sctp_it_ctl.iterator_flags &= ~SCTP_ITERATOR_STOP_CUR_INP;

    1324. 

  1324. 					goto no_stcb;

    1325. 

  1325. 				}

    1326. 

  1326. 				/* If we reach here huh? */

    1327. 

  1327. 				SCTP_PRINTF("Unknown it ctl flag %x\n",

    1328. 

  1328. 					    sctp_it_ctl.iterator_flags);

    1329. 

  1329. 				sctp_it_ctl.iterator_flags = 0;

    1330. 

  1330. 			}

    1331. 

  1331. 			SCTP_INP_RLOCK(it->inp);

    1332. 

  1332. 			SCTP_INP_DECR_REF(it->inp);

    1333. 

  1333. 			SCTP_TCB_LOCK(it->stcb);

    1334. 

  1334. 			atomic_add_int(&it->stcb->asoc.refcnt, -1);

    1335. 

  1335. 			iteration_count = 0;

    1336. 

  1336. 		}

    1337. 

  1337. 

    1338. 

  1338. 		/* run function on this one */

    1339. 

  1339. 		(*it->function_assoc)(it->inp, it->stcb, it->pointer, it->val);

    1340. 

  1340. 

    1341. 

  1341. 		/*

    1342. 

  1342. 		 * we lie here, it really needs to have its own type but

    1343. 

  1343. 		 * first I must verify that this won't effect things :-0

    1344. 

  1344. 		 */

    1345. 

  1345. 		if (it->no_chunk_output == 0)

    1346. 

  1346. 			sctp_chunk_output(it->inp, it->stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_NOT_LOCKED);

    1347. 

  1347. 

    1348. 

  1348. 		SCTP_TCB_UNLOCK(it->stcb);

    1349. 

  1349. 	next_assoc:

    1350. 

  1350. 		it->stcb = LIST_NEXT(it->stcb, sctp_tcblist);

    1351. 

  1351. 		if (it->stcb == NULL) {

    1352. 

  1352. 			/* Run last function */

    1353. 

  1353. 			if (it->function_inp_end != NULL) {

    1354. 

  1354. 				inp_skip = (*it->function_inp_end)(it->inp,

    1355. 

  1355. 								   it->pointer,

    1356. 

  1356. 								   it->val);

    1357. 

  1357. 			}

    1358. 

  1358. 		}

    1359. 

  1359. 	}

    1360. 

  1360. 	SCTP_INP_RUNLOCK(it->inp);

    1361. 

  1361.  no_stcb:

    1362. 

  1362. 	/* done with all assocs on this endpoint, move on to next endpoint */

    1363. 

  1363. 	it->done_current_ep = 0;

    1364. 

  1364. 	if (it->iterator_flags & SCTP_ITERATOR_DO_SINGLE_INP) {

    1365. 

  1365. 		it->inp = NULL;

    1366. 

  1366. 	} else {

    1367. 

  1367. 		it->inp = LIST_NEXT(it->inp, sctp_list);

    1368. 

  1368. 	}

    1369. 

  1369. 	if (it->inp == NULL) {

    1370. 

  1370. 		goto done_with_iterator;

    1371. 

  1371. 	}

    1372. 

  1372. 	goto select_a_new_ep;

    1373. 

  1373. }

    1374. 

  1374. 

    1375. 

  1375. void

    1376. 

  1376. sctp_iterator_worker(void)

    1377. 

  1377. {

    1378. 

  1378. 	struct sctp_iterator *it, *nit;

    1379. 

  1379. 

    1380. 

  1380. 	/* This function is called with the WQ lock in place */

    1381. 

  1381. 

    1382. 

  1382. 	sctp_it_ctl.iterator_running = 1;

    1383. 

  1383. 	TAILQ_FOREACH_SAFE(it, &sctp_it_ctl.iteratorhead, sctp_nxt_itr, nit) {

    1384. 

  1384. 		sctp_it_ctl.cur_it = it;

    1385. 

  1385. 		/* now lets work on this one */

    1386. 

  1386. 		TAILQ_REMOVE(&sctp_it_ctl.iteratorhead, it, sctp_nxt_itr);

    1387. 

  1387. 		SCTP_IPI_ITERATOR_WQ_UNLOCK();

    1388. 

  1388. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1389. 

  1389. 		CURVNET_SET(it->vn);

    1390. 

  1390. #endif

    1391. 

  1391. 		sctp_iterator_work(it);

    1392. 

  1392. 		sctp_it_ctl.cur_it = NULL;

    1393. 

  1393. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1394. 

  1394. 		CURVNET_RESTORE();

    1395. 

  1395. #endif

    1396. 

  1396. 		SCTP_IPI_ITERATOR_WQ_LOCK();

    1397. 

  1397. #if !defined(__FreeBSD__)

    1398. 

  1398. 		if (sctp_it_ctl.iterator_flags & SCTP_ITERATOR_MUST_EXIT) {

    1399. 

  1399. 			break;

    1400. 

  1400. 		}

    1401. 

  1401. #endif

    1402. 

  1402. 	        /*sa_ignore FREED_MEMORY*/

    1403. 

  1403. 	}

    1404. 

  1404. 	sctp_it_ctl.iterator_running = 0;

    1405. 

  1405. 	return;

    1406. 

  1406. }

    1407. 

  1407. 

    1408. 

  1408. 

    1409. 

  1409. static void

    1410. 

  1410. sctp_handle_addr_wq(void)

    1411. 

  1411. {

    1412. 

  1412. 	/* deal with the ADDR wq from the rtsock calls */

    1413. 

  1413. 	struct sctp_laddr *wi, *nwi;

    1414. 

  1414. 	struct sctp_asconf_iterator *asc;

    1415. 

  1415. 

    1416. 

  1416. 	SCTP_MALLOC(asc, struct sctp_asconf_iterator *,

    1417. 

  1417. 		    sizeof(struct sctp_asconf_iterator), SCTP_M_ASC_IT);

    1418. 

  1418. 	if (asc == NULL) {

    1419. 

  1419. 		/* Try later, no memory */

    1420. 

  1420. 		sctp_timer_start(SCTP_TIMER_TYPE_ADDR_WQ,

    1421. 

  1421. 				 (struct sctp_inpcb *)NULL,

    1422. 

  1422. 				 (struct sctp_tcb *)NULL,

    1423. 

  1423. 				 (struct sctp_nets *)NULL);

    1424. 

  1424. 		return;

    1425. 

  1425. 	}

    1426. 

  1426. 	LIST_INIT(&asc->list_of_work);

    1427. 

  1427. 	asc->cnt = 0;

    1428. 

  1428. 

    1429. 

  1429. 	SCTP_WQ_ADDR_LOCK();

    1430. 

  1430. 	LIST_FOREACH_SAFE(wi, &SCTP_BASE_INFO(addr_wq), sctp_nxt_addr, nwi) {

    1431. 

  1431. 		LIST_REMOVE(wi, sctp_nxt_addr);

    1432. 

  1432. 		LIST_INSERT_HEAD(&asc->list_of_work, wi, sctp_nxt_addr);

    1433. 

  1433. 		asc->cnt++;

    1434. 

  1434. 	}

    1435. 

  1435. 	SCTP_WQ_ADDR_UNLOCK();

    1436. 

  1436. 

    1437. 

  1437. 	if (asc->cnt == 0) {

    1438. 

  1438. 		SCTP_FREE(asc, SCTP_M_ASC_IT);

    1439. 

  1439. 	} else {

    1440. 

  1440. 		(void)sctp_initiate_iterator(sctp_asconf_iterator_ep,

    1441. 

  1441. 					     sctp_asconf_iterator_stcb,

    1442. 

  1442. 					     NULL, /* No ep end for boundall */

    1443. 

  1443. 					     SCTP_PCB_FLAGS_BOUNDALL,

    1444. 

  1444. 					     SCTP_PCB_ANY_FEATURES,

    1445. 

  1445. 					     SCTP_ASOC_ANY_STATE,

    1446. 

  1446. 					     (void *)asc, 0,

    1447. 

  1447. 					     sctp_asconf_iterator_end, NULL, 0);

    1448. 

  1448. 	}

    1449. 

  1449. }

    1450. 

  1450. 

    1451. 

  1451. void

    1452. 

  1452. sctp_timeout_handler(void *t)

    1453. 

  1453. {

    1454. 

  1454. 	struct sctp_inpcb *inp;

    1455. 

  1455. 	struct sctp_tcb *stcb;

    1456. 

  1456. 	struct sctp_nets *net;

    1457. 

  1457. 	struct sctp_timer *tmr;

    1458. 

  1458. #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)

    1459. 

  1459. 	struct socket *so;

    1460. 

  1460. #endif

    1461. 

  1461. 	int did_output, type;

    1462. 

  1462. 

    1463. 

  1463. 	tmr = (struct sctp_timer *)t;

    1464. 

  1464. 	inp = (struct sctp_inpcb *)tmr->ep;

    1465. 

  1465. 	stcb = (struct sctp_tcb *)tmr->tcb;

    1466. 

  1466. 	net = (struct sctp_nets *)tmr->net;

    1467. 

  1467. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1468. 

  1468. 	CURVNET_SET((struct vnet *)tmr->vnet);

    1469. 

  1469. #endif

    1470. 

  1470. 	did_output = 1;

    1471. 

  1471. 

    1472. 

  1472. #ifdef SCTP_AUDITING_ENABLED

    1473. 

  1473. 	sctp_audit_log(0xF0, (uint8_t) tmr->type);

    1474. 

  1474. 	sctp_auditing(3, inp, stcb, net);

    1475. 

  1475. #endif

    1476. 

  1476. 

    1477. 

  1477. 	/* sanity checks... */

    1478. 

  1478. 	if (tmr->self != (void *)tmr) {

    1479. 

  1479. 		/*

    1480. 

  1480. 		 * SCTP_PRINTF("Stale SCTP timer fired (%p), ignoring...\n",

    1481. 

  1481. 		 * tmr);

    1482. 

  1482. 		 */

    1483. 

  1483. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1484. 

  1484. 		CURVNET_RESTORE();

    1485. 

  1485. #endif

    1486. 

  1486. 		return;

    1487. 

  1487. 	}

    1488. 

  1488. 	tmr->stopped_from = 0xa001;

    1489. 

  1489. 	if (!SCTP_IS_TIMER_TYPE_VALID(tmr->type)) {

    1490. 

  1490. 		/*

    1491. 

  1491. 		 * SCTP_PRINTF("SCTP timer fired with invalid type: 0x%x\n",

    1492. 

  1492. 		 * tmr->type);

    1493. 

  1493. 		 */

    1494. 

  1494. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1495. 

  1495. 		CURVNET_RESTORE();

    1496. 

  1496. #endif

    1497. 

  1497. 		return;

    1498. 

  1498. 	}

    1499. 

  1499. 	tmr->stopped_from = 0xa002;

    1500. 

  1500. 	if ((tmr->type != SCTP_TIMER_TYPE_ADDR_WQ) && (inp == NULL)) {

    1501. 

  1501. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1502. 

  1502. 		CURVNET_RESTORE();

    1503. 

  1503. #endif

    1504. 

  1504. 		return;

    1505. 

  1505. 	}

    1506. 

  1506. 	/* if this is an iterator timeout, get the struct and clear inp */

    1507. 

  1507. 	tmr->stopped_from = 0xa003;

    1508. 

  1508. 	type = tmr->type;

    1509. 

  1509. 	if (inp) {

    1510. 

  1510. 		SCTP_INP_INCR_REF(inp);

    1511. 

  1511. 		if ((inp->sctp_socket == NULL) &&

    1512. 

  1512. 		    ((tmr->type != SCTP_TIMER_TYPE_INPKILL) &&

    1513. 

  1513. 		     (tmr->type != SCTP_TIMER_TYPE_INIT) &&

    1514. 

  1514. 		     (tmr->type != SCTP_TIMER_TYPE_SEND) &&

    1515. 

  1515. 		     (tmr->type != SCTP_TIMER_TYPE_RECV) &&

    1516. 

  1516. 		     (tmr->type != SCTP_TIMER_TYPE_HEARTBEAT) &&

    1517. 

  1517. 		     (tmr->type != SCTP_TIMER_TYPE_SHUTDOWN) &&

    1518. 

  1518. 		     (tmr->type != SCTP_TIMER_TYPE_SHUTDOWNACK) &&

    1519. 

  1519. 		     (tmr->type != SCTP_TIMER_TYPE_SHUTDOWNGUARD) &&

    1520. 

  1520. 		     (tmr->type != SCTP_TIMER_TYPE_ASOCKILL))

    1521. 

  1521. 			) {

    1522. 

  1522. 			SCTP_INP_DECR_REF(inp);

    1523. 

  1523. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1524. 

  1524. 			CURVNET_RESTORE();

    1525. 

  1525. #endif

    1526. 

  1526. 			return;

    1527. 

  1527. 		}

    1528. 

  1528. 	}

    1529. 

  1529. 	tmr->stopped_from = 0xa004;

    1530. 

  1530. 	if (stcb) {

    1531. 

  1531. 		atomic_add_int(&stcb->asoc.refcnt, 1);

    1532. 

  1532. 		if (stcb->asoc.state == 0) {

    1533. 

  1533. 			atomic_add_int(&stcb->asoc.refcnt, -1);

    1534. 

  1534. 			if (inp) {

    1535. 

  1535. 				SCTP_INP_DECR_REF(inp);

    1536. 

  1536. 			}

    1537. 

  1537. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1538. 

  1538. 			CURVNET_RESTORE();

    1539. 

  1539. #endif

    1540. 

  1540. 			return;

    1541. 

  1541. 		}

    1542. 

  1542. 	}

    1543. 

  1543. 	tmr->stopped_from = 0xa005;

    1544. 

  1544. 	SCTPDBG(SCTP_DEBUG_TIMER1, "Timer type %d goes off\n", tmr->type);

    1545. 

  1545. 	if (!SCTP_OS_TIMER_ACTIVE(&tmr->timer)) {

    1546. 

  1546. 		if (inp) {

    1547. 

  1547. 			SCTP_INP_DECR_REF(inp);

    1548. 

  1548. 		}

    1549. 

  1549. 		if (stcb) {

    1550. 

  1550. 			atomic_add_int(&stcb->asoc.refcnt, -1);

    1551. 

  1551. 		}

    1552. 

  1552. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1553. 

  1553. 		CURVNET_RESTORE();

    1554. 

  1554. #endif

    1555. 

  1555. 		return;

    1556. 

  1556. 	}

    1557. 

  1557. 	tmr->stopped_from = 0xa006;

    1558. 

  1558. 

    1559. 

  1559. 	if (stcb) {

    1560. 

  1560. 		SCTP_TCB_LOCK(stcb);

    1561. 

  1561. 		atomic_add_int(&stcb->asoc.refcnt, -1);

    1562. 

  1562. 		if ((tmr->type != SCTP_TIMER_TYPE_ASOCKILL) &&

    1563. 

  1563. 		    ((stcb->asoc.state == 0) ||

    1564. 

  1564. 		     (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED))) {

    1565. 

  1565. 			SCTP_TCB_UNLOCK(stcb);

    1566. 

  1566. 			if (inp) {

    1567. 

  1567. 				SCTP_INP_DECR_REF(inp);

    1568. 

  1568. 			}

    1569. 

  1569. #if defined(__FreeBSD__) && __FreeBSD_version >= 801000

    1570. 

  1570. 			CURVNET_RESTORE();

    1571. 

  1571. #endif

    1572. 

  1572. 			return;

    1573. 

  1573. 		}

    1574. 

  1574. 	}

    1575. 

  1575. 	/* record in stopped what t-o occured */

    1576. 

  1576. 	tmr->stopped_from = tmr->type;

    1577. 

  1577. 

    1578. 

  1578. 	/* mark as being serviced now */

    1579. 

  1579. 	if (SCTP_OS_TIMER_PENDING(&tmr->timer)) {

    1580. 

  1580. 		/*

    1581. 

  1581. 		 * Callout has been rescheduled.

    1582. 

  1582. 		 */

    1583. 

  1583. 		goto get_out;

    1584. 

  1584. 	}

    1585. 

  1585. 	if (!SCTP_OS_TIMER_ACTIVE(&tmr->timer)) {

    1586. 

  1586. 		/*

    1587. 

  1587. 		 * Not active, so no action.

    1588. 

  1588. 		 */

    1589. 

  1589. 		goto get_out;

    1590. 

  1590. 	}

    1591. 

  1591. 	SCTP_OS_TIMER_DEACTIVATE(&tmr->timer);

    1592. 

  1592. 

    1593. 

  1593. 	/* call the handler for the appropriate timer type */

    1594. 

  1594. 	switch (tmr->type) {

    1595. 

  1595. 	case SCTP_TIMER_TYPE_ZERO_COPY:

    1596. 

  1596. 		if (inp == NULL) {

    1597. 

  1597. 			break;

    1598. 

  1598. 		}

    1599. 

  1599. 		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE)) {

    1600. 

  1600. 			SCTP_ZERO_COPY_EVENT(inp, inp->sctp_socket);

    1601. 

  1601. 		}

    1602. 

  1602. 		break;

    1603. 

  1603. 	case SCTP_TIMER_TYPE_ZCOPY_SENDQ:

    1604. 

  1604. 		if (inp == NULL) {

    1605. 

  1605. 			break;

    1606. 

  1606. 		}

    1607. 

  1607. 		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE)) {

    1608. 

  1608. 		    SCTP_ZERO_COPY_SENDQ_EVENT(inp, inp->sctp_socket);

    1609. 

  1609. 		}

    1610. 

  1610.                 break;

    1611. 

  1611. 	case SCTP_TIMER_TYPE_ADDR_WQ:

    1612. 

  1612. 		sctp_handle_addr_wq();

    1613. 

  1613. 		break;

    1614. 

  1614. 	case SCTP_TIMER_TYPE_SEND:

    1615. 

  1615. 		if ((stcb == NULL) || (inp == NULL)) {

    1616. 

  1616. 			break;

    1617. 

  1617. 		}

    1618. 

  1618. 		SCTP_STAT_INCR(sctps_timodata);

    1619. 

  1619. 		stcb->asoc.timodata++;

    1620. 

  1620. 		stcb->asoc.num_send_timers_up--;

    1621. 

  1621. 		if (stcb->asoc.num_send_timers_up < 0) {

    1622. 

  1622. 			stcb->asoc.num_send_timers_up = 0;

    1623. 

  1623. 		}

    1624. 

  1624. 		SCTP_TCB_LOCK_ASSERT(stcb);

    1625. 

  1625. 		if (sctp_t3rxt_timer(inp, stcb, net)) {

    1626. 

  1626. 			/* no need to unlock on tcb its gone */

    1627. 

  1627. 

    1628. 

  1628. 			goto out_decr;

    1629. 

  1629. 		}

    1630. 

  1630. 		SCTP_TCB_LOCK_ASSERT(stcb);

    1631. 

  1631. #ifdef SCTP_AUDITING_ENABLED

    1632. 

  1632. 		sctp_auditing(4, inp, stcb, net);

    1633. 

  1633. #endif

    1634. 

  1634. 		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_NOT_LOCKED);

    1635. 

  1635. 		if ((stcb->asoc.num_send_timers_up == 0) &&

    1636. 

  1636. 		    (stcb->asoc.sent_queue_cnt > 0)) {

    1637. 

  1637. 			struct sctp_tmit_chunk *chk;

    1638. 

  1638. 

    1639. 

  1639. 			/*

    1640. 

  1640. 			 * safeguard. If there on some on the sent queue

    1641. 

  1641. 			 * somewhere but no timers running something is

    1642. 

  1642. 			 * wrong... so we start a timer on the first chunk

    1643. 

  1643. 			 * on the send queue on whatever net it is sent to.

    1644. 

  1644. 			 */

    1645. 

  1645. 			chk = TAILQ_FIRST(&stcb->asoc.sent_queue);

    1646. 

  1646. 			sctp_timer_start(SCTP_TIMER_TYPE_SEND, inp, stcb,

    1647. 

  1647. 			    chk->whoTo);

    1648. 

  1648. 		}

    1649. 

  1649. 		break;

    1650. 

  1650. 	case SCTP_TIMER_TYPE_INIT:

    1651. 

  1651. 		if ((stcb == NULL) || (inp == NULL)) {

    1652. 

  1652. 			break;

    1653. 

  1653. 		}

    1654. 

  1654. 		SCTP_STAT_INCR(sctps_timoinit);

    1655. 

  1655. 		stcb->asoc.timoinit++;

    1656. 

  1656. 		if (sctp_t1init_timer(inp, stcb, net)) {

    1657. 

  1657. 			/* no need to unlock on tcb its gone */

    1658. 

  1658. 			goto out_decr;

    1659. 

  1659. 		}

    1660. 

  1660. 		/* We do output but not here */

    1661. 

  1661. 		did_output = 0;

    1662. 

  1662. 		break;

    1663. 

  1663. 	case SCTP_TIMER_TYPE_RECV:

    1664. 

  1664. 		if ((stcb == NULL) || (inp == NULL)) {

    1665. 

  1665. 			break;

    1666. 

  1666. 		}

    1667. 

  1667. 		SCTP_STAT_INCR(sctps_timosack);

    1668. 

  1668. 		stcb->asoc.timosack++;

    1669. 

  1669. 		sctp_send_sack(stcb, SCTP_SO_NOT_LOCKED);

    1670. 

  1670. #ifdef SCTP_AUDITING_ENABLED

    1671. 

  1671. 		sctp_auditing(4, inp, stcb, net);

    1672. 

  1672. #endif

    1673. 

  1673. 		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SACK_TMR, SCTP_SO_NOT_LOCKED);

    1674. 

  1674. 		break;

    1675. 

  1675. 	case SCTP_TIMER_TYPE_SHUTDOWN:

    1676. 

  1676. 		if ((stcb == NULL) || (inp == NULL)) {

    1677. 

  1677. 			break;

    1678. 

  1678. 		}

    1679. 

  1679. 		if (sctp_shutdown_timer(inp, stcb, net)) {

    1680. 

  1680. 			/* no need to unlock on tcb its gone */

    1681. 

  1681. 			goto out_decr;

    1682. 

  1682. 		}

    1683. 

  1683. 		SCTP_STAT_INCR(sctps_timoshutdown);

    1684. 

  1684. 		stcb->asoc.timoshutdown++;

    1685. 

  1685. #ifdef SCTP_AUDITING_ENABLED

    1686. 

  1686. 		sctp_auditing(4, inp, stcb, net);

    1687. 

  1687. #endif

    1688. 

  1688. 		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SHUT_TMR, SCTP_SO_NOT_LOCKED);

    1689. 

  1689. 		break;

    1690. 

  1690. 	case SCTP_TIMER_TYPE_HEARTBEAT:

    1691. 

  1691. 		if ((stcb == NULL) || (inp == NULL) || (net == NULL)) {

    1692. 

  1692. 			break;

    1693. 

  1693. 		}

    1694. 

  1694. 		SCTP_STAT_INCR(sctps_timoheartbeat);

    1695. 

  1695. 		stcb->asoc.timoheartbeat…
    1696.

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