sys/netinet/sctp_lock_bsd.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *   this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *   the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #ifndef _NETINET_SCTP_LOCK_BSD_H_
  39 #define _NETINET_SCTP_LOCK_BSD_H_
  40
  41 /*
  42  * General locking concepts: The goal of our locking is to of course provide
  43  * consistency and yet minimize overhead. We will attempt to use
  44  * non-recursive locks which are supposed to be quite inexpensive. Now in
  45  * order to do this the goal is that most functions are not aware of locking.
  46  * Once we have a TCB we lock it and unlock when we are through. This means
  47  * that the TCB lock is kind-of a "global" lock when working on an
  48  * association. Caution must be used when asserting a TCB_LOCK since if we
  49  * recurse we deadlock.
  50  *
  51  * Most other locks (INP and INFO) attempt to localize the locking i.e. we try
  52  * to contain the lock and unlock within the function that needs to lock it.
  53  * This sometimes mean we do extra locks and unlocks and lose a bit of
  54  * efficiency, but if the performance statements about non-recursive locks are
  55  * true this should not be a problem.  One issue that arises with this only
  56  * lock when needed is that if an implicit association setup is done we have
  57  * a problem. If at the time I lookup an association I have NULL in the tcb
  58  * return, by the time I call to create the association some other processor
  59  * could have created it. This is what the CREATE lock on the endpoint.
  60  * Places where we will be implicitly creating the association OR just
  61  * creating an association (the connect call) will assert the CREATE_INP
  62  * lock. This will assure us that during all the lookup of INP and INFO if
  63  * another creator is also locking/looking up we can gate the two to
  64  * synchronize. So the CREATE_INP lock is also another one we must use
  65  * extreme caution in locking to make sure we don't hit a re-entrancy issue.
  66  *
  67  * For non FreeBSD 5.x we provide a bunch of EMPTY lock macros so we can
  68  * blatantly put locks everywhere and they reduce to nothing on
  69  * NetBSD/OpenBSD and FreeBSD 4.x
  70  *
  71  */
  72
  73 /*
  74  * When working with the global SCTP lists we lock and unlock the INP_INFO
  75  * lock. So when we go to lookup an association we will want to do a
  76  * SCTP_INP_INFO_RLOCK() and then when we want to add a new association to
  77  * the SCTP_BASE_INFO() list's we will do a SCTP_INP_INFO_WLOCK().
  78  */
  79
  80 extern struct sctp_foo_stuff sctp_logoff[];
  81 extern int sctp_logoff_stuff;
  82
  83 #define SCTP_IPI_COUNT_INIT()
  84
  85 #define SCTP_STATLOG_INIT_LOCK()
  86 #define SCTP_STATLOG_LOCK()
  87 #define SCTP_STATLOG_UNLOCK()
  88 #define SCTP_STATLOG_DESTROY()
  89
  90 #define SCTP_INP_INFO_LOCK_DESTROY() do { \
  91         if(rw_wowned(&SCTP_BASE_INFO(ipi_ep_mtx))) { \
  92              rw_wunlock(&SCTP_BASE_INFO(ipi_ep_mtx)); \
  93         } \
  94         rw_destroy(&SCTP_BASE_INFO(ipi_ep_mtx)); \
  95       }  while (0)
  96
  97 #define SCTP_INP_INFO_LOCK_INIT() \
  98         rw_init(&SCTP_BASE_INFO(ipi_ep_mtx), "sctp-info");
  99
 100
 101 #define SCTP_INP_INFO_RLOCK()   do {                                    \
 102              rw_rlock(&SCTP_BASE_INFO(ipi_ep_mtx));                         \
 103 } while (0)
 104
 105 #define SCTP_MCORE_QLOCK_INIT(cpstr) do { \
 106                 mtx_init(&(cpstr)->que_mtx,           \
 107                          "sctp-mcore_queue","queue_lock",       \
 108                          MTX_DEF|MTX_DUPOK);            \
 109 } while (0)
 110
 111 #define SCTP_MCORE_QLOCK(cpstr)  do { \
 112                 mtx_lock(&(cpstr)->que_mtx);    \
 113 } while (0)
 114
 115 #define SCTP_MCORE_QUNLOCK(cpstr)  do { \
 116                 mtx_unlock(&(cpstr)->que_mtx);  \
 117 } while (0)
 118
 119 #define SCTP_MCORE_QDESTROY(cpstr)  do { \
 120         if(mtx_owned(&(cpstr)->core_mtx)) {     \
 121                 mtx_unlock(&(cpstr)->que_mtx);  \
 122         } \
 123         mtx_destroy(&(cpstr)->que_mtx); \
 124 } while (0)
 125
 126
 127 #define SCTP_MCORE_LOCK_INIT(cpstr) do { \
 128                 mtx_init(&(cpstr)->core_mtx,          \
 129                          "sctp-cpulck","cpu_proc_lock", \
 130                          MTX_DEF|MTX_DUPOK);            \
 131 } while (0)
 132
 133 #define SCTP_MCORE_LOCK(cpstr)  do { \
 134                 mtx_lock(&(cpstr)->core_mtx);   \
 135 } while (0)
 136
 137 #define SCTP_MCORE_UNLOCK(cpstr)  do { \
 138                 mtx_unlock(&(cpstr)->core_mtx); \
 139 } while (0)
 140
 141 #define SCTP_MCORE_DESTROY(cpstr)  do { \
 142         if(mtx_owned(&(cpstr)->core_mtx)) {     \
 143                 mtx_unlock(&(cpstr)->core_mtx); \
 144         } \
 145         mtx_destroy(&(cpstr)->core_mtx);        \
 146 } while (0)
 147
 148 #define SCTP_INP_INFO_WLOCK()   do {                                    \
 149             rw_wlock(&SCTP_BASE_INFO(ipi_ep_mtx));                         \
 150 } while (0)
 151
 152
 153 #define SCTP_INP_INFO_RUNLOCK()         rw_runlock(&SCTP_BASE_INFO(ipi_ep_mtx))
 154 #define SCTP_INP_INFO_WUNLOCK()         rw_wunlock(&SCTP_BASE_INFO(ipi_ep_mtx))
 155
 156
 157 #define SCTP_IPI_ADDR_INIT()                                                            \
 158         rw_init(&SCTP_BASE_INFO(ipi_addr_mtx), "sctp-addr")
 159 #define SCTP_IPI_ADDR_DESTROY() do  { \
 160         if(rw_wowned(&SCTP_BASE_INFO(ipi_addr_mtx))) { \
 161              rw_wunlock(&SCTP_BASE_INFO(ipi_addr_mtx)); \
 162         } \
 163         rw_destroy(&SCTP_BASE_INFO(ipi_addr_mtx)); \
 164       }  while (0)
 165 #define SCTP_IPI_ADDR_RLOCK()   do {                                    \
 166              rw_rlock(&SCTP_BASE_INFO(ipi_addr_mtx));                         \
 167 } while (0)
 168 #define SCTP_IPI_ADDR_WLOCK()   do {                                    \
 169              rw_wlock(&SCTP_BASE_INFO(ipi_addr_mtx));                         \
 170 } while (0)
 171
 172 #define SCTP_IPI_ADDR_RUNLOCK()         rw_runlock(&SCTP_BASE_INFO(ipi_addr_mtx))
 173 #define SCTP_IPI_ADDR_WUNLOCK()         rw_wunlock(&SCTP_BASE_INFO(ipi_addr_mtx))
 174
 175
 176 #define SCTP_IPI_ITERATOR_WQ_INIT() \
 177         mtx_init(&sctp_it_ctl.ipi_iterator_wq_mtx, "sctp-it-wq", "sctp_it_wq", MTX_DEF)
 178
 179 #define SCTP_IPI_ITERATOR_WQ_DESTROY() \
 180         mtx_destroy(&sctp_it_ctl.ipi_iterator_wq_mtx)
 181
 182 #define SCTP_IPI_ITERATOR_WQ_LOCK()     do {                                    \
 183              mtx_lock(&sctp_it_ctl.ipi_iterator_wq_mtx);                \
 184 } while (0)
 185
 186 #define SCTP_IPI_ITERATOR_WQ_UNLOCK()           mtx_unlock(&sctp_it_ctl.ipi_iterator_wq_mtx)
 187
 188
 189 #define SCTP_IP_PKTLOG_INIT() \
 190         mtx_init(&SCTP_BASE_INFO(ipi_pktlog_mtx), "sctp-pktlog", "packetlog", MTX_DEF)
 191
 192
 193 #define SCTP_IP_PKTLOG_LOCK()   do {                    \
 194              mtx_lock(&SCTP_BASE_INFO(ipi_pktlog_mtx));     \
 195 } while (0)
 196
 197 #define SCTP_IP_PKTLOG_UNLOCK() mtx_unlock(&SCTP_BASE_INFO(ipi_pktlog_mtx))
 198
 199 #define SCTP_IP_PKTLOG_DESTROY() \
 200         mtx_destroy(&SCTP_BASE_INFO(ipi_pktlog_mtx))
 201
 202
 203
 204
 205
 206 /*
 207  * The INP locks we will use for locking an SCTP endpoint, so for example if
 208  * we want to change something at the endpoint level for example random_store
 209  * or cookie secrets we lock the INP level.
 210  */
 211
 212 #define SCTP_INP_READ_INIT(_inp) \
 213         mtx_init(&(_inp)->inp_rdata_mtx, "sctp-read", "inpr", MTX_DEF | MTX_DUPOK)
 214
 215 #define SCTP_INP_READ_DESTROY(_inp) \
 216         mtx_destroy(&(_inp)->inp_rdata_mtx)
 217
 218 #define SCTP_INP_READ_LOCK(_inp)        do { \
 219         mtx_lock(&(_inp)->inp_rdata_mtx);    \
 220 } while (0)
 221
 222
 223 #define SCTP_INP_READ_UNLOCK(_inp) mtx_unlock(&(_inp)->inp_rdata_mtx)
 224
 225
 226 #define SCTP_INP_LOCK_INIT(_inp) \
 227         mtx_init(&(_inp)->inp_mtx, "sctp-inp", "inp", MTX_DEF | MTX_DUPOK)
 228 #define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
 229         mtx_init(&(_inp)->inp_create_mtx, "sctp-create", "inp_create", \
 230                  MTX_DEF | MTX_DUPOK)
 231
 232 #define SCTP_INP_LOCK_DESTROY(_inp) \
 233         mtx_destroy(&(_inp)->inp_mtx)
 234
 235 #define SCTP_INP_LOCK_CONTENDED(_inp) ((_inp)->inp_mtx.mtx_lock & MTX_CONTESTED)
 236
 237 #define SCTP_INP_READ_CONTENDED(_inp) ((_inp)->inp_rdata_mtx.mtx_lock & MTX_CONTESTED)
 238
 239 #define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) ((_inp)->inp_create_mtx.mtx_lock & MTX_CONTESTED)
 240
 241
 242 #define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) \
 243         mtx_destroy(&(_inp)->inp_create_mtx)
 244
 245
 246 #ifdef SCTP_LOCK_LOGGING
 247 #define SCTP_INP_RLOCK(_inp)    do {                                    \
 248         if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) sctp_log_lock(_inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_INP);\
 249         mtx_lock(&(_inp)->inp_mtx);                                     \
 250 } while (0)
 251
 252 #define SCTP_INP_WLOCK(_inp)    do {                                    \
 253         if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) sctp_log_lock(_inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_INP);\
 254         mtx_lock(&(_inp)->inp_mtx);                                     \
 255 } while (0)
 256
 257 #else
 258
 259 #define SCTP_INP_RLOCK(_inp)    do {                                    \
 260         mtx_lock(&(_inp)->inp_mtx);                                     \
 261 } while (0)
 262
 263 #define SCTP_INP_WLOCK(_inp)    do {                                    \
 264         mtx_lock(&(_inp)->inp_mtx);                                     \
 265 } while (0)
 266
 267 #endif
 268
 269
 270 #define SCTP_TCB_SEND_LOCK_INIT(_tcb) \
 271         mtx_init(&(_tcb)->tcb_send_mtx, "sctp-send-tcb", "tcbs", MTX_DEF | MTX_DUPOK)
 272
 273 #define SCTP_TCB_SEND_LOCK_DESTROY(_tcb) mtx_destroy(&(_tcb)->tcb_send_mtx)
 274
 275 #define SCTP_TCB_SEND_LOCK(_tcb)  do { \
 276         mtx_lock(&(_tcb)->tcb_send_mtx); \
 277 } while (0)
 278
 279 #define SCTP_TCB_SEND_UNLOCK(_tcb) mtx_unlock(&(_tcb)->tcb_send_mtx)
 280
 281 #define SCTP_INP_INCR_REF(_inp) atomic_add_int(&((_inp)->refcount), 1)
 282 #define SCTP_INP_DECR_REF(_inp) atomic_add_int(&((_inp)->refcount), -1)
 283
 284
 285 #ifdef SCTP_LOCK_LOGGING
 286 #define SCTP_ASOC_CREATE_LOCK(_inp) \
 287         do {                                                            \
 288         if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) sctp_log_lock(_inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_CREATE); \
 289                 mtx_lock(&(_inp)->inp_create_mtx);                      \
 290         } while (0)
 291 #else
 292
 293 #define SCTP_ASOC_CREATE_LOCK(_inp) \
 294         do {                                                            \
 295                 mtx_lock(&(_inp)->inp_create_mtx);                      \
 296         } while (0)
 297 #endif
 298
 299 #define SCTP_INP_RUNLOCK(_inp)          mtx_unlock(&(_inp)->inp_mtx)
 300 #define SCTP_INP_WUNLOCK(_inp)          mtx_unlock(&(_inp)->inp_mtx)
 301 #define SCTP_ASOC_CREATE_UNLOCK(_inp)   mtx_unlock(&(_inp)->inp_create_mtx)
 302
 303 /*
 304  * For the majority of things (once we have found the association) we will
 305  * lock the actual association mutex. This will protect all the assoiciation
 306  * level queues and streams and such. We will need to lock the socket layer
 307  * when we stuff data up into the receiving sb_mb. I.e. we will need to do an
 308  * extra SOCKBUF_LOCK(&so->so_rcv) even though the association is locked.
 309  */
 310
 311 #define SCTP_TCB_LOCK_INIT(_tcb) \
 312         mtx_init(&(_tcb)->tcb_mtx, "sctp-tcb", "tcb", MTX_DEF | MTX_DUPOK)
 313
 314 #define SCTP_TCB_LOCK_DESTROY(_tcb)     mtx_destroy(&(_tcb)->tcb_mtx)
 315
 316 #ifdef SCTP_LOCK_LOGGING
 317 #define SCTP_TCB_LOCK(_tcb)  do {                                       \
 318         if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE)  sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB);          \
 319         mtx_lock(&(_tcb)->tcb_mtx);                                     \
 320 } while (0)
 321
 322 #else
 323 #define SCTP_TCB_LOCK(_tcb)  do {                                       \
 324         mtx_lock(&(_tcb)->tcb_mtx);                                     \
 325 } while (0)
 326
 327 #endif
 328
 329
 330 #define SCTP_TCB_TRYLOCK(_tcb)  mtx_trylock(&(_tcb)->tcb_mtx)
 331
 332 #define SCTP_TCB_UNLOCK(_tcb)           mtx_unlock(&(_tcb)->tcb_mtx)
 333
 334 #define SCTP_TCB_UNLOCK_IFOWNED(_tcb)         do { \
 335                                                 if (mtx_owned(&(_tcb)->tcb_mtx)) \
 336                                                      mtx_unlock(&(_tcb)->tcb_mtx); \
 337                                               } while (0)
 338
 339
 340
 341 #ifdef INVARIANTS
 342 #define SCTP_TCB_LOCK_ASSERT(_tcb) do { \
 343                             if (mtx_owned(&(_tcb)->tcb_mtx) == 0) \
 344                                 panic("Don't own TCB lock"); \
 345                             } while (0)
 346 #else
 347 #define SCTP_TCB_LOCK_ASSERT(_tcb)
 348 #endif
 349
 350 #define SCTP_ITERATOR_LOCK_INIT() \
 351         mtx_init(&sctp_it_ctl.it_mtx, "sctp-it", "iterator", MTX_DEF)
 352
 353 #ifdef INVARIANTS
 354 #define SCTP_ITERATOR_LOCK() \
 355         do {                                                            \
 356                 if (mtx_owned(&sctp_it_ctl.it_mtx))                     \
 357                         panic("Iterator Lock");                         \
 358                 mtx_lock(&sctp_it_ctl.it_mtx);                          \
 359         } while (0)
 360 #else
 361 #define SCTP_ITERATOR_LOCK() \
 362         do {                                                            \
 363                 mtx_lock(&sctp_it_ctl.it_mtx);                          \
 364         } while (0)
 365
 366 #endif
 367
 368 #define SCTP_ITERATOR_UNLOCK()          mtx_unlock(&sctp_it_ctl.it_mtx)
 369 #define SCTP_ITERATOR_LOCK_DESTROY()    mtx_destroy(&sctp_it_ctl.it_mtx)
 370
 371
 372 #define SCTP_WQ_ADDR_INIT() do { \
 373         mtx_init(&SCTP_BASE_INFO(wq_addr_mtx), "sctp-addr-wq","sctp_addr_wq",MTX_DEF); \
 374  } while (0)
 375
 376 #define SCTP_WQ_ADDR_DESTROY() do  { \
 377         if(mtx_owned(&SCTP_BASE_INFO(wq_addr_mtx))) { \
 378              mtx_unlock(&SCTP_BASE_INFO(wq_addr_mtx)); \
 379         } \
 380             mtx_destroy(&SCTP_BASE_INFO(wq_addr_mtx)); \
 381       }  while (0)
 382
 383 #define SCTP_WQ_ADDR_LOCK()     do { \
 384              mtx_lock(&SCTP_BASE_INFO(wq_addr_mtx));  \
 385 } while (0)
 386 #define SCTP_WQ_ADDR_UNLOCK() do { \
 387                 mtx_unlock(&SCTP_BASE_INFO(wq_addr_mtx)); \
 388 } while (0)
 389
 390
 391
 392 #define SCTP_INCR_EP_COUNT() \
 393                 do { \
 394                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_ep), 1); \
 395                 } while (0)
 396
 397 #define SCTP_DECR_EP_COUNT() \
 398                 do { \
 399                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_ep), 1); \
 400                 } while (0)
 401
 402 #define SCTP_INCR_ASOC_COUNT() \
 403                 do { \
 404                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_asoc), 1); \
 405                 } while (0)
 406
 407 #define SCTP_DECR_ASOC_COUNT() \
 408                 do { \
 409                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_asoc), 1); \
 410                 } while (0)
 411
 412 #define SCTP_INCR_LADDR_COUNT() \
 413                 do { \
 414                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_laddr), 1); \
 415                 } while (0)
 416
 417 #define SCTP_DECR_LADDR_COUNT() \
 418                 do { \
 419                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_laddr), 1); \
 420                 } while (0)
 421
 422 #define SCTP_INCR_RADDR_COUNT() \
 423                 do { \
 424                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_raddr), 1); \
 425                 } while (0)
 426
 427 #define SCTP_DECR_RADDR_COUNT() \
 428                 do { \
 429                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_raddr),1); \
 430                 } while (0)
 431
 432 #define SCTP_INCR_CHK_COUNT() \
 433                 do { \
 434                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_chunk), 1); \
 435                 } while (0)
 436 #ifdef INVARIANTS
 437 #define SCTP_DECR_CHK_COUNT() \
 438                 do { \
 439                        if(SCTP_BASE_INFO(ipi_count_chunk) == 0) \
 440                              panic("chunk count to 0?");    \
 441                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_chunk), 1); \
 442                 } while (0)
 443 #else
 444 #define SCTP_DECR_CHK_COUNT() \
 445                 do { \
 446                        if(SCTP_BASE_INFO(ipi_count_chunk) != 0) \
 447                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_chunk), 1); \
 448                 } while (0)
 449 #endif
 450 #define SCTP_INCR_READQ_COUNT() \
 451                 do { \
 452                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_readq),1); \
 453                 } while (0)
 454
 455 #define SCTP_DECR_READQ_COUNT() \
 456                 do { \
 457                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_readq), 1); \
 458                 } while (0)
 459
 460 #define SCTP_INCR_STRMOQ_COUNT() \
 461                 do { \
 462                        atomic_add_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1); \
 463                 } while (0)
 464
 465 #define SCTP_DECR_STRMOQ_COUNT() \
 466                 do { \
 467                        atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1); \
 468                 } while (0)
 469
 470
 471 #if defined(SCTP_SO_LOCK_TESTING)
 472 #define SCTP_INP_SO(sctpinp)    (sctpinp)->ip_inp.inp.inp_socket
 473 #define SCTP_SOCKET_LOCK(so, refcnt)
 474 #define SCTP_SOCKET_UNLOCK(so, refcnt)
 475 #endif
 476
 477 #endif