1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved.
7 * Copyright (c) 2008-2011, by Brad Penoff. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 * a) Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 *
15 * b) Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the distribution.
18 *
19 * c) Neither the name of Cisco Systems, Inc. nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
25 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
33 * THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #ifndef __sctp_os_userspace_h__
37 #define __sctp_os_userspace_h__
38 /*
39 * Userspace includes
40 * All the opt_xxx.h files are placed in the kernel build directory.
41 * We will place them in userspace stack build directory.
42 */
43
44 #include <errno.h>
45
46 #if defined(__Userspace_os_Windows)
47 #include <winsock2.h>
48 #include <ws2tcpip.h>
49 #include <iphlpapi.h>
50 #include <mswsock.h>
51 #include <windows.h>
52 #include "user_environment.h"
53 typedef CRITICAL_SECTION userland_mutex_t;
54 #if WINVER < 0x0600
55 enum {
56 C_SIGNAL = 0,
57 C_BROADCAST = 1,
58 C_MAX_EVENTS = 2
59 };
60 typedef struct
61 {
62 u_int waiters_count;
63 CRITICAL_SECTION waiters_count_lock;
64 HANDLE events_[C_MAX_EVENTS];
65 } userland_cond_t;
66 void InitializeXPConditionVariable(userland_cond_t *);
67 void DeleteXPConditionVariable(userland_cond_t *);
68 int SleepXPConditionVariable(userland_cond_t *, userland_mutex_t *);
69 void WakeAllXPConditionVariable(userland_cond_t *);
70 #define InitializeConditionVariable(cond) InitializeXPConditionVariable(cond)
71 #define DeleteConditionVariable(cond) DeleteXPConditionVariable(cond)
72 #define SleepConditionVariableCS(cond, mtx, time) SleepXPConditionVariable(cond, mtx)
73 #define WakeAllConditionVariable(cond) WakeAllXPConditionVariable(cond)
74 #else
75 #define DeleteConditionVariable(cond)
76 typedef CONDITION_VARIABLE userland_cond_t;
77 #endif
78 typedef HANDLE userland_thread_t;
79 #define ADDRESS_FAMILY unsigned __int8
80 #define IPVERSION 4
81 #define MAXTTL 255
82 /* VS2010 comes with stdint.h */
83 #if !defined(_MSC_VER) || (_MSC_VER >= 1600)
84 #include <stdint.h>
85 #else
86 #define uint64_t unsigned __int64
87 #define uint32_t unsigned __int32
88 #define int32_t __int32
89 #define uint16_t unsigned __int16
90 #define int16_t __int16
91 #define uint8_t unsigned __int8
92 #define int8_t __int8
93 #endif
94 #ifndef _SIZE_T_DEFINED
95 #define size_t __int32
96 #endif
97 #define u_long unsigned __int64
98 #define u_int unsigned __int32
99 #define u_int32_t unsigned __int32
100 #define u_int16_t unsigned __int16
101 #define u_int8_t unsigned __int8
102 #define u_char unsigned char
103 #define n_short unsigned __int16
104 #define u_short unsigned __int16
105 #define n_time unsigned __int32
106 #define sa_family_t unsigned __int8
107 #define ssize_t __int64
108 #if !defined(__MINGW32__)
109 #define __func__ __FUNCTION__
110 #endif
111 #ifndef EWOULDBLOCK
112 #define EWOULDBLOCK WSAEWOULDBLOCK
113 #endif
114 #ifndef EINPROGRESS
115 #define EINPROGRESS WSAEINPROGRESS
116 #endif
117 #ifndef EALREADY
118 #define EALREADY WSAEALREADY
119 #endif
120 #ifndef ENOTSOCK
121 #define ENOTSOCK WSAENOTSOCK
122 #endif
123 #ifndef EDESTADDRREQ
124 #define EDESTADDRREQ WSAEDESTADDRREQ
125 #endif
126 #ifndef EMSGSIZE
127 #define EMSGSIZE WSAEMSGSIZE
128 #endif
129 #ifndef EPROTOTYPE
130 #define EPROTOTYPE WSAEPROTOTYPE
131 #endif
132 #ifndef ENOPROTOOPT
133 #define ENOPROTOOPT WSAENOPROTOOPT
134 #endif
135 #ifndef EPROTONOSUPPORT
136 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
137 #endif
138 #ifndef ESOCKTNOSUPPORT
139 #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
140 #endif
141 #ifndef EOPNOTSUPP
142 #define EOPNOTSUPP WSAEOPNOTSUPP
143 #endif
144 #ifndef ENOTSUP
145 #define ENOTSUP WSAEOPNOTSUPP
146 #endif
147 #ifndef EPFNOSUPPORT
148 #define EPFNOSUPPORT WSAEPFNOSUPPORT
149 #endif
150 #ifndef EAFNOSUPPORT
151 #define EAFNOSUPPORT WSAEAFNOSUPPORT
152 #endif
153 #ifndef EADDRINUSE
154 #define EADDRINUSE WSAEADDRINUSE
155 #endif
156 #ifndef EADDRNOTAVAIL
157 #define EADDRNOTAVAIL WSAEADDRNOTAVAIL
158 #endif
159 #ifndef ENETDOWN
160 #define ENETDOWN WSAENETDOWN
161 #endif
162 #ifndef ENETUNREACH
163 #define ENETUNREACH WSAENETUNREACH
164 #endif
165 #ifndef ENETRESET
166 #define ENETRESET WSAENETRESET
167 #endif
168 #ifndef ECONNABORTED
169 #define ECONNABORTED WSAECONNABORTED
170 #endif
171 #ifndef ECONNRESET
172 #define ECONNRESET WSAECONNRESET
173 #endif
174 #ifndef ENOBUFS
175 #define ENOBUFS WSAENOBUFS
176 #endif
177 #ifndef EISCONN
178 #define EISCONN WSAEISCONN
179 #endif
180 #ifndef ENOTCONN
181 #define ENOTCONN WSAENOTCONN
182 #endif
183 #ifndef ESHUTDOWN
184 #define ESHUTDOWN WSAESHUTDOWN
185 #endif
186 #ifndef ETOOMANYREFS
187 #define ETOOMANYREFS WSAETOOMANYREFS
188 #endif
189 #ifndef ETIMEDOUT
190 #define ETIMEDOUT WSAETIMEDOUT
191 #endif
192 #ifndef ECONNREFUSED
193 #define ECONNREFUSED WSAECONNREFUSED
194 #endif
195 #ifndef ELOOP
196 #define ELOOP WSAELOOP
197 #endif
198 #ifndef EHOSTDOWN
199 #define EHOSTDOWN WSAEHOSTDOWN
200 #endif
201 #ifndef EHOSTUNREACH
202 #define EHOSTUNREACH WSAEHOSTUNREACH
203 #endif
204 #ifndef EPROCLIM
205 #define EPROCLIM WSAEPROCLIM
206 #endif
207 #ifndef EUSERS
208 #define EUSERS WSAEUSERS
209 #endif
210 #ifndef EDQUOT
211 #define EDQUOT WSAEDQUOT
212 #endif
213 #ifndef ESTALE
214 #define ESTALE WSAESTALE
215 #endif
216 #ifndef EREMOTE
217 #define EREMOTE WSAEREMOTE
218 #endif
219
220 typedef char* caddr_t;
221
222 #define bzero(buf, len) memset(buf, 0, len)
223 #define bcopy(srcKey, dstKey, len) memcpy(dstKey, srcKey, len)
224
225 #if defined(_MSC_VER) && (_MSC_VER < 1900) && !defined(__MINGW32__)
226 #define SCTP_SNPRINTF(data, size, format, ...) \
227 if (_snprintf_s(data, size, _TRUNCATE, format, __VA_ARGS__) < 0) { \
228 data[0] = '\0'; \
229 }
230 #else
231 #define SCTP_SNPRINTF(data, ...) \
232 if (snprintf(data, __VA_ARGS__) < 0 ) { \
233 data[0] = '\0'; \
234 }
235 #endif
236
237 #define inline __inline
238 #define __inline__ __inline
239 #define MSG_EOR 0x8 /* data completes record */
240 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
241
242 #ifdef CMSG_DATA
243 #undef CMSG_DATA
244 #endif
245 /*
246 * The following definitions should apply iff WINVER < 0x0600
247 * but that check doesn't work in all cases. So be more pedantic...
248 */
249 #define CMSG_DATA(x) WSA_CMSG_DATA(x)
250 #define CMSG_ALIGN(x) WSA_CMSGDATA_ALIGN(x)
251 #ifndef CMSG_FIRSTHDR
252 #define CMSG_FIRSTHDR(x) WSA_CMSG_FIRSTHDR(x)
253 #endif
254 #ifndef CMSG_NXTHDR
255 #define CMSG_NXTHDR(x, y) WSA_CMSG_NXTHDR(x, y)
256 #endif
257 #ifndef CMSG_SPACE
258 #define CMSG_SPACE(x) WSA_CMSG_SPACE(x)
259 #endif
260 #ifndef CMSG_LEN
261 #define CMSG_LEN(x) WSA_CMSG_LEN(x)
262 #endif
263
264 /**** from sctp_os_windows.h ***************/
265 #define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
266 #define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifa && (ro)->ro_rt->rt_ifa->ifa_ifp && (ro)->ro_rt->rt_ifa->ifa_ifp->if_type == IFT_LOOP)
267
268 /*
269 * Access to IFN's to help with src-addr-selection
270 */
271 /* This could return VOID if the index works but for BSD we provide both. */
272 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) \
273 ((ro)->ro_rt != NULL ? (ro)->ro_rt->rt_ifp : NULL)
274 #define SCTP_ROUTE_HAS_VALID_IFN(ro) \
275 ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
276 /******************************************/
277
278 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */
279
280 #define BIG_ENDIAN 1
281 #define LITTLE_ENDIAN 0
282 #ifdef WORDS_BIGENDIAN
283 #define BYTE_ORDER BIG_ENDIAN
284 #else
285 #define BYTE_ORDER LITTLE_ENDIAN
286 #endif
287
288 #else /* !defined(Userspace_os_Windows) */
289 #include <sys/socket.h>
290 #if defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_Linux) || defined(__Userspace_os_NetBSD) || defined(__Userspace_os_OpenBSD) || defined(__Userspace_os_NaCl) || defined(__Userspace_os_Fuchsia)
291 #include <pthread.h>
292 #endif
293 typedef pthread_mutex_t userland_mutex_t;
294 typedef pthread_cond_t userland_cond_t;
295 typedef pthread_t userland_thread_t;
296 #endif
297
298 #if defined(__Userspace_os_Windows) || defined(__Userspace_os_NaCl)
299
300 #define IFNAMSIZ 64
301
302 #define random() rand()
303 #define srandom(s) srand(s)
304
305 #define timeradd(tvp, uvp, vvp) \
306 do { \
307 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
308 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
309 if ((vvp)->tv_usec >= 1000000) { \
310 (vvp)->tv_sec++; \
311 (vvp)->tv_usec -= 1000000; \
312 } \
313 } while (0)
314
315 #define timersub(tvp, uvp, vvp) \
316 do { \
317 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
318 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
319 if ((vvp)->tv_usec < 0) { \
320 (vvp)->tv_sec--; \
321 (vvp)->tv_usec += 1000000; \
322 } \
323 } while (0)
324
325 /*#include <packon.h>
326 #pragma pack(push, 1)*/
327 struct ip {
328 u_char ip_hl:4, ip_v:4;
329 u_char ip_tos;
330 u_short ip_len;
331 u_short ip_id;
332 u_short ip_off;
333 #define IP_RP 0x8000
334 #define IP_DF 0x4000
335 #define IP_MF 0x2000
336 #define IP_OFFMASK 0x1fff
337 u_char ip_ttl;
338 u_char ip_p;
339 u_short ip_sum;
340 struct in_addr ip_src, ip_dst;
341 };
342
343 struct ifaddrs {
344 struct ifaddrs *ifa_next;
345 char *ifa_name;
346 unsigned int ifa_flags;
347 struct sockaddr *ifa_addr;
348 struct sockaddr *ifa_netmask;
349 struct sockaddr *ifa_dstaddr;
350 void *ifa_data;
351 };
352
353 struct udphdr {
354 uint16_t uh_sport;
355 uint16_t uh_dport;
356 uint16_t uh_ulen;
357 uint16_t uh_sum;
358 };
359
360 struct iovec {
361 size_t len;
362 char *buf;
363 };
364
365 #define iov_base buf
366 #define iov_len len
367
368 struct ifa_msghdr {
369 uint16_t ifam_msglen;
370 unsigned char ifam_version;
371 unsigned char ifam_type;
372 uint32_t ifam_addrs;
373 uint32_t ifam_flags;
374 uint16_t ifam_index;
375 uint32_t ifam_metric;
376 };
377
378 struct ifdevmtu {
379 int ifdm_current;
380 int ifdm_min;
381 int ifdm_max;
382 };
383
384 struct ifkpi {
385 unsigned int ifk_module_id;
386 unsigned int ifk_type;
387 union {
388 void *ifk_ptr;
389 int ifk_value;
390 } ifk_data;
391 };
392
393 struct ifreq {
394 char ifr_name[16];
395 union {
396 struct sockaddr ifru_addr;
397 struct sockaddr ifru_dstaddr;
398 struct sockaddr ifru_broadaddr;
399 short ifru_flags;
400 int ifru_metric;
401 int ifru_mtu;
402 int ifru_phys;
403 int ifru_media;
404 int ifru_intval;
405 char* ifru_data;
406 struct ifdevmtu ifru_devmtu;
407 struct ifkpi ifru_kpi;
408 uint32_t ifru_wake_flags;
409 } ifr_ifru;
410 #define ifr_addr ifr_ifru.ifru_addr
411 #define ifr_dstaddr ifr_ifru.ifru_dstaddr
412 #define ifr_broadaddr ifr_ifru.ifru_broadaddr
413 #define ifr_flags ifr_ifru.ifru_flags[0]
414 #define ifr_prevflags ifr_ifru.ifru_flags[1]
415 #define ifr_metric ifr_ifru.ifru_metric
416 #define ifr_mtu ifr_ifru.ifru_mtu
417 #define ifr_phys ifr_ifru.ifru_phys
418 #define ifr_media ifr_ifru.ifru_media
419 #define ifr_data ifr_ifru.ifru_data
420 #define ifr_devmtu ifr_ifru.ifru_devmtu
421 #define ifr_intval ifr_ifru.ifru_intval
422 #define ifr_kpi ifr_ifru.ifru_kpi
423 #define ifr_wake_flags ifr_ifru.ifru_wake_flags
424 };
425
426 #endif
427
428 #if defined(__Userspace_os_Windows)
429 int Win_getifaddrs(struct ifaddrs**);
430 #define getifaddrs(interfaces) (int)Win_getifaddrs(interfaces)
431 int win_if_nametoindex(const char *);
432 #define if_nametoindex(x) win_if_nametoindex(x)
433 #endif
434
435 #define mtx_lock(arg1)
436 #define mtx_unlock(arg1)
437 #define mtx_assert(arg1,arg2)
438 #define MA_OWNED 7 /* sys/mutex.h typically on FreeBSD */
439 #if !defined(__Userspace_os_FreeBSD)
440 struct mtx {int dummy;};
441 #if !defined(__Userspace_os_NetBSD)
442 struct selinfo {int dummy;};
443 #endif
444 struct sx {int dummy;};
445 #endif
446
447 #include <stdio.h>
448 #include <string.h>
449 #include <stdbool.h>
450 /* #include <sys/param.h> in FreeBSD defines MSIZE */
451 /* #include <sys/ktr.h> */
452 /* #include <sys/systm.h> */
453 #if defined(HAVE_SYS_QUEUE_H)
454 #include <sys/queue.h>
455 #else
456 #include <user_queue.h>
457 #endif
458 #include <user_malloc.h>
459 /* #include <sys/kernel.h> */
460 /* #include <sys/sysctl.h> */
461 /* #include <sys/protosw.h> */
462 /* on FreeBSD, this results in a redefintion of SOCK(BUF)_(UN)LOCK and
463 * uknown type of struct mtx for sb_mtx in struct sockbuf */
464 #include "user_socketvar.h" /* MALLOC_DECLARE's M_PCB. Replacement for sys/socketvar.h */
465 /* #include <sys/jail.h> */
466 /* #include <sys/sysctl.h> */
467 #include <user_environment.h>
468 #include <user_atomic.h>
469 #include <user_mbuf.h>
470 /* #include <sys/uio.h> */
471 /* #include <sys/lock.h> */
472 #if defined(__FreeBSD__) && __FreeBSD_version > 602000
473 #include <sys/rwlock.h>
474 #endif
475 /* #include <sys/kthread.h> */
476 #if defined(__FreeBSD__) && __FreeBSD_version > 602000
477 #include <sys/priv.h>
478 #endif
479 /* #include <sys/random.h> */
480 #include <limits.h>
481 /* #include <machine/cpu.h> */
482
483 #if defined(__Userspace_os_Darwin)
484 /* was a 0 byte file. needed for structs if_data(64) and net_event_data */
485 #include <net/if_var.h>
486 #endif
487 #if defined(__Userspace_os_FreeBSD)
488 #include <net/if_types.h>
489 /* #include <net/if_var.h> was a 0 byte file. causes struct mtx redefinition */
490 #endif
491 /* OOTB only - dummy route used at the moment. should we port route to
492 * userspace as well? */
493 /* on FreeBSD, this results in a redefintion of struct route */
494 /* #include <net/route.h> */
495 #if !defined(__Userspace_os_Windows) && !defined(__Userspace_os_NaCl)
496 #include <net/if.h>
497 #include <netinet/in.h>
498 #include <netinet/in_systm.h>
499 #include <netinet/ip.h>
500 #endif
501 #if defined(HAVE_NETINET_IP_ICMP_H)
502 #include <netinet/ip_icmp.h>
503 #else
504 #include <user_ip_icmp.h>
505 #endif
506 /* #include <netinet/in_pcb.h> ported to userspace */
507 #include <user_inpcb.h>
508
509 /* for getifaddrs */
510 #include <sys/types.h>
511 #if !defined(__Userspace_os_Windows)
512 #if defined(INET) || defined(INET6)
513 #include <ifaddrs.h>
514 #endif
515
516 /* for ioctl */
517 #include <sys/ioctl.h>
518
519 /* for close, etc. */
520 #include <unistd.h>
521 #endif
522
523 /* lots of errno's used and needed in userspace */
524
525 /* for offsetof */
526 #include <stddef.h>
527
528 #if defined(SCTP_PROCESS_LEVEL_LOCKS) && !defined(__Userspace_os_Windows)
529 /* for pthread_mutex_lock, pthread_mutex_unlock, etc. */
530 #include <pthread.h>
531 #endif
532
533 #ifdef IPSEC
534 #include <netipsec/ipsec.h>
535 #include <netipsec/key.h>
536 #endif /* IPSEC */
537
538 #ifdef INET6
539 #if defined(__Userspace_os_FreeBSD)
540 #include <sys/domain.h>
541 #endif
542 #ifdef IPSEC
543 #include <netipsec/ipsec6.h>
544 #endif
545 #if !defined(__Userspace_os_Windows)
546 #include <netinet/ip6.h>
547 #endif
548 #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_Linux) || defined(__Userspace_os_NetBSD) || defined(__Userspace_os_OpenBSD) || defined(__Userspace_os_Windows)
549 #include "user_ip6_var.h"
550 #else
551 #include <netinet6/ip6_var.h>
552 #endif
553 #if defined(__Userspace_os_FreeBSD)
554 #include <netinet6/in6_pcb.h>
555 #include <netinet6/ip6protosw.h>
556 /* #include <netinet6/nd6.h> was a 0 byte file */
557 #include <netinet6/scope6_var.h>
558 #endif
559 #endif /* INET6 */
560
561 #if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
562 #include <sys/file.h>
563 #include <sys/filedesc.h>
564 #endif
565
566 #include "netinet/sctp_sha1.h"
567
568 #if __FreeBSD_version >= 700000
569 #include <netinet/ip_options.h>
570 #endif
571
572 #define SCTP_PRINTF(...) \
573 if (SCTP_BASE_VAR(debug_printf)) { \
574 SCTP_BASE_VAR(debug_printf)(__VA_ARGS__); \
575 }
576
577 /* Declare all the malloc names for all the various mallocs */
578 MALLOC_DECLARE(SCTP_M_MAP);
579 MALLOC_DECLARE(SCTP_M_STRMI);
580 MALLOC_DECLARE(SCTP_M_STRMO);
581 MALLOC_DECLARE(SCTP_M_ASC_ADDR);
582 MALLOC_DECLARE(SCTP_M_ASC_IT);
583 MALLOC_DECLARE(SCTP_M_AUTH_CL);
584 MALLOC_DECLARE(SCTP_M_AUTH_KY);
585 MALLOC_DECLARE(SCTP_M_AUTH_HL);
586 MALLOC_DECLARE(SCTP_M_AUTH_IF);
587 MALLOC_DECLARE(SCTP_M_STRESET);
588 MALLOC_DECLARE(SCTP_M_CMSG);
589 MALLOC_DECLARE(SCTP_M_COPYAL);
590 MALLOC_DECLARE(SCTP_M_VRF);
591 MALLOC_DECLARE(SCTP_M_IFA);
592 MALLOC_DECLARE(SCTP_M_IFN);
593 MALLOC_DECLARE(SCTP_M_TIMW);
594 MALLOC_DECLARE(SCTP_M_MVRF);
595 MALLOC_DECLARE(SCTP_M_ITER);
596 MALLOC_DECLARE(SCTP_M_SOCKOPT);
597
598 #if defined(SCTP_LOCAL_TRACE_BUF)
599
600 #define SCTP_GET_CYCLECOUNT get_cyclecount()
601 #define SCTP_CTR6 sctp_log_trace
602
603 #else
604 #define SCTP_CTR6 CTR6
605 #endif
606
607 /* Empty ktr statement for _Userspace__ (similar to what is done for mac) */
608 #define CTR6(m, d, p1, p2, p3, p4, p5, p6)
609
610
611
612 #define SCTP_BASE_INFO(__m) system_base_info.sctppcbinfo.__m
613 #define SCTP_BASE_STATS system_base_info.sctpstat
614 #define SCTP_BASE_STAT(__m) system_base_info.sctpstat.__m
615 #define SCTP_BASE_SYSCTL(__m) system_base_info.sctpsysctl.__m
616 #define SCTP_BASE_VAR(__m) system_base_info.__m
617
618 /*
619 *
620 */
621 #if !defined(__Userspace_os_Darwin)
622 #define USER_ADDR_NULL (NULL) /* FIX ME: temp */
623 #endif
624
625 #if defined(SCTP_DEBUG)
626 #include <netinet/sctp_constants.h>
627 #define SCTPDBG(level, ...) \
628 { \
629 do { \
630 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level) { \
631 SCTP_PRINTF(__VA_ARGS__); \
632 } \
633 } while (0); \
634 }
635 #define SCTPDBG_ADDR(level, addr) \
636 { \
637 do { \
638 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
639 sctp_print_address(addr); \
640 } \
641 } while (0); \
642 }
643 #else
644 #define SCTPDBG(level, ...)
645 #define SCTPDBG_ADDR(level, addr)
646 #endif
647
648 #ifdef SCTP_LTRACE_CHUNKS
649 #define SCTP_LTRACE_CHK(a, b, c, d) if(sctp_logging_level & SCTP_LTRACE_CHUNK_ENABLE) CTR6(KTR_SUBSYS, "SCTP:%d[%d]:%x-%x-%x-%x", SCTP_LOG_CHUNK_PROC, 0, a, b, c, d)
650 #else
651 #define SCTP_LTRACE_CHK(a, b, c, d)
652 #endif
653
654 #ifdef SCTP_LTRACE_ERRORS
655 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
656 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
657 SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
658 (void *)m, (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
659 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
660 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
661 SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
662 (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
663 #else
664 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
665 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
666 #endif
667
668
669 /*
670 * Local address and interface list handling
671 */
672 #define SCTP_MAX_VRF_ID 0
673 #define SCTP_SIZE_OF_VRF_HASH 3
674 #define SCTP_IFNAMSIZ IFNAMSIZ
675 #define SCTP_DEFAULT_VRFID 0
676 #define SCTP_VRF_ADDR_HASH_SIZE 16
677 #define SCTP_VRF_IFN_HASH_SIZE 3
678 #define SCTP_INIT_VRF_TABLEID(vrf)
679
680 #if !defined(__Userspace_os_Windows)
681 #define SCTP_IFN_IS_IFT_LOOP(ifn) (strncmp((ifn)->ifn_name, "lo", 2) == 0)
682 /* BSD definition */
683 /* #define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifa && (ro)->ro_rt->rt_ifa->ifa_ifp && (ro)->ro_rt->rt_ifa->ifa_ifp->if_type == IFT_LOOP) */
684 /* only used in IPv6 scenario, which isn't supported yet */
685 #define SCTP_ROUTE_IS_REAL_LOOP(ro) 0
686
687 /*
688 * Access to IFN's to help with src-addr-selection
689 */
690 /* This could return VOID if the index works but for BSD we provide both. */
691 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
692 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */
693 #define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
694 #endif
695
696 /*
697 * general memory allocation
698 */
699 #define SCTP_MALLOC(var, type, size, name) \
700 do { \
701 MALLOC(var, type, size, name, M_NOWAIT); \
702 } while (0)
703
704 #define SCTP_FREE(var, type) FREE(var, type)
705
706 #define SCTP_MALLOC_SONAME(var, type, size) \
707 do { \
708 MALLOC(var, type, size, M_SONAME, (M_WAITOK | M_ZERO)); \
709 } while (0)
710
711 #define SCTP_FREE_SONAME(var) FREE(var, M_SONAME)
712
713 #define SCTP_PROCESS_STRUCT struct proc *
714
715 /*
716 * zone allocation functions
717 */
718
719
720 #if defined(SCTP_SIMPLE_ALLOCATOR)
721 /*typedef size_t sctp_zone_t;*/
722 #define SCTP_ZONE_INIT(zone, name, size, number) { \
723 zone = size; \
724 }
725
726 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
727 #define SCTP_ZONE_GET(zone, type) \
728 (type *)malloc(zone);
729
730
731 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
732 #define SCTP_ZONE_FREE(zone, element) { \
733 free(element); \
734 }
735
736 #define SCTP_ZONE_DESTROY(zone)
737 #else
738 /*__Userspace__
739 Compiling & linking notes: Needs libumem, which has been placed in ./user_lib
740 All userspace header files are in ./user_include. Makefile will need the
741 following.
742 CFLAGS = -I./ -Wall
743 LDFLAGS = -L./user_lib -R./user_lib -lumem
744 */
745 #include "user_include/umem.h"
746
747 /* __Userspace__ SCTP_ZONE_INIT: initialize the zone */
748 /*
749 __Userspace__
750 No equivalent function to uma_zone_set_max added yet. (See SCTP_ZONE_INIT in sctp_os_bsd.h
751 for reference). It may not be required as mentioned in
752 http://nixdoc.net/man-pages/FreeBSD/uma_zalloc.9.html that
753 max limits may not enforced on systems with more than one CPU.
754 */
755 #define SCTP_ZONE_INIT(zone, name, size, number) { \
756 zone = umem_cache_create(name, size, 0, NULL, NULL, NULL, NULL, NULL, 0); \
757 }
758
759 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
760 #define SCTP_ZONE_GET(zone, type) \
761 (type *)umem_cache_alloc(zone, UMEM_DEFAULT);
762
763
764 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
765 #define SCTP_ZONE_FREE(zone, element) \
766 umem_cache_free(zone, element);
767
768
769 /* __Userspace__ SCTP_ZONE_DESTROY: destroy the zone */
770 #define SCTP_ZONE_DESTROY(zone) \
771 umem_cache_destroy(zone);
772 #endif
773
774 /*
775 * __Userspace__ Defining sctp_hashinit_flags() and sctp_hashdestroy() for userland.
776 */
777 void *sctp_hashinit_flags(int elements, struct malloc_type *type,
778 u_long *hashmask, int flags);
779 void
780 sctp_hashdestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask);
781
782 void
783 sctp_hashfreedestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask);
784
785
786 #define HASH_NOWAIT 0x00000001
787 #define HASH_WAITOK 0x00000002
788
789 /* M_PCB is MALLOC_DECLARE'd in sys/socketvar.h */
790 #define SCTP_HASH_INIT(size, hashmark) sctp_hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
791
792 #define SCTP_HASH_FREE(table, hashmark) sctp_hashdestroy(table, M_PCB, hashmark)
793
794 #define SCTP_HASH_FREE_DESTROY(table, hashmark) sctp_hashfreedestroy(table, M_PCB, hashmark)
795 #define SCTP_M_COPYM m_copym
796
797 /*
798 * timers
799 */
800 /* __Userspace__
801 * user_sctp_callout.h has typedef struct sctp_callout sctp_os_timer_t;
802 * which is used in the timer related functions such as
803 * SCTP_OS_TIMER_INIT etc.
804 */
805 #include <netinet/sctp_callout.h>
806
807 /* __Userspace__ Creating a receive thread */
808 #include <user_recv_thread.h>
809
810 /*__Userspace__ defining KTR_SUBSYS 1 as done in sctp_os_macosx.h */
811 #define KTR_SUBSYS 1
812
813 /* The packed define for 64 bit platforms */
814 #if !defined(__Userspace_os_Windows)
815 #define SCTP_PACKED __attribute__((packed))
816 #define SCTP_UNUSED __attribute__((unused))
817 #else
818 #define SCTP_PACKED
819 #define SCTP_UNUSED
820 #endif
821
822 /*
823 * Functions
824 */
825 /* Mbuf manipulation and access macros */
826 #define SCTP_BUF_LEN(m) (m->m_len)
827 #define SCTP_BUF_NEXT(m) (m->m_next)
828 #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
829 #define SCTP_BUF_RESV_UF(m, size) m->m_data += size
830 #define SCTP_BUF_AT(m, size) m->m_data + size
831 #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
832 #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
833 #define SCTP_BUF_TYPE(m) (m->m_type)
834 #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
835 #define SCTP_BUF_PREPEND M_PREPEND
836
837 #define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
838 MH_ALIGN(m, len); \
839 } else if ((m->m_flags & M_EXT) == 0) { \
840 M_ALIGN(m, len); \
841 }
842
843 #if !defined(__Userspace_os_Windows)
844 #define SCTP_SNPRINTF(data, ...) \
845 if (snprintf(data, __VA_ARGS__) < 0) { \
846 data[0] = '\0'; \
847 }
848 #endif
849
850 /* We make it so if you have up to 4 threads
851 * writting based on the default size of
852 * the packet log 65 k, that would be
853 * 4 16k packets before we would hit
854 * a problem.
855 */
856 #define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
857
858
859 /*
860 * routes, output, etc.
861 */
862
863 typedef struct sctp_route sctp_route_t;
864 typedef struct sctp_rtentry sctp_rtentry_t;
865
sctp_userspace_rtalloc(sctp_route_t * ro)866 static inline void sctp_userspace_rtalloc(sctp_route_t *ro)
867 {
868 if (ro->ro_rt != NULL) {
869 ro->ro_rt->rt_refcnt++;
870 return;
871 }
872
873 ro->ro_rt = (sctp_rtentry_t *) malloc(sizeof(sctp_rtentry_t));
874 if (ro->ro_rt == NULL)
875 return;
876
877 /* initialize */
878 memset(ro->ro_rt, 0, sizeof(sctp_rtentry_t));
879 ro->ro_rt->rt_refcnt = 1;
880
881 /* set MTU */
882 /* TODO set this based on the ro->ro_dst, looking up MTU with routing socket */
883 #if 0
884 if (userspace_rawroute == -1) {
885 userspace_rawroute = socket(AF_ROUTE, SOCK_RAW, 0);
886 if (userspace_rawroute == -1)
887 return;
888 }
889 #endif
890 ro->ro_rt->rt_rmx.rmx_mtu = 1500; /* FIXME temporary solution */
891
892 /* TODO enable the ability to obtain interface index of route for
893 * SCTP_GET_IF_INDEX_FROM_ROUTE macro.
894 */
895 }
896 #define SCTP_RTALLOC(ro, vrf_id, fibnum) sctp_userspace_rtalloc((sctp_route_t *)ro)
897
898 /* dummy rtfree needed once user_route.h is included */
sctp_userspace_rtfree(sctp_rtentry_t * rt)899 static inline void sctp_userspace_rtfree(sctp_rtentry_t *rt)
900 {
901 if(rt == NULL) {
902 return;
903 }
904 if(--rt->rt_refcnt > 0) {
905 return;
906 }
907 free(rt);
908 }
909 #define rtfree(arg1) sctp_userspace_rtfree(arg1)
910
911
912 /*************************/
913 /* MTU */
914 /*************************/
915 int sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af);
916
917 #define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) sctp_userspace_get_mtu_from_ifn(ifn_index, af)
918
919 #define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
920
921 #define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) sctp_userspace_get_mtu_from_ifn(if_nametoindex(((struct ifaddrs *) (sctp_ifn))->ifa_name), AF_INET)
922
923 #define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
924 if (rt != NULL) \
925 rt->rt_rmx.rmx_mtu = mtu; \
926 } while(0)
927
928 /* (de-)register interface event notifications */
929 #define SCTP_REGISTER_INTERFACE(ifhandle, af)
930 #define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
931
932
933 /*************************/
934 /* These are for logging */
935 /*************************/
936 /* return the base ext data pointer */
937 #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
938 /* return the refcnt of the data pointer */
939 #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
940 /* return any buffer related flags, this is
941 * used beyond logging for apple only.
942 */
943 #define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
944
945 /* For BSD this just accesses the M_PKTHDR length
946 * so it operates on an mbuf with hdr flag. Other
947 * O/S's may have seperate packet header and mbuf
948 * chain pointers.. thus the macro.
949 */
950 #define SCTP_HEADER_TO_CHAIN(m) (m)
951 #define SCTP_DETACH_HEADER_FROM_CHAIN(m)
952 #define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
953 #define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
954 #define SCTP_RELEASE_HEADER(m)
955 #define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
956
957 #define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
958
959
960
961 /* Attach the chain of data into the sendable packet. */
962 #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
963 pak = m; \
964 pak->m_pkthdr.len = packet_length; \
965 } while(0)
966
967 /* Other m_pkthdr type things */
968 /* FIXME need real definitions */
969 #define SCTP_IS_IT_BROADCAST(dst, m) 0
970 /* OOTB only #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0) BSD def */
971 #define SCTP_IS_IT_LOOPBACK(m) 0
972 /* OOTB ONLY #define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP))) BSD def */
973
974
975 /* This converts any input packet header
976 * into the chain of data holders, for BSD
977 * its a NOP.
978 */
979
980 /* get the v6 hop limit */
981 #define SCTP_GET_HLIM(inp, ro) 128 /* As done for __Windows__ */
982 #define IPv6_HOP_LIMIT 128
983
984 /* is the endpoint v6only? */
985 #define SCTP_IPV6_V6ONLY(sctp_inpcb) ((sctp_inpcb)->ip_inp.inp.inp_flags & IN6P_IPV6_V6ONLY)
986 /* is the socket non-blocking? */
987 #define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
988 #define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
989 #define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
990 /* get the socket type */
991 #define SCTP_SO_TYPE(so) ((so)->so_type)
992
993 /* reserve sb space for a socket */
994 #define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
995
996 /* wakeup a socket */
997 #define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo, so)
998 /* clear the socket buffer state */
999 #define SCTP_SB_CLEAR(sb) \
1000 (sb).sb_cc = 0; \
1001 (sb).sb_mb = NULL; \
1002 (sb).sb_mbcnt = 0;
1003
1004 #define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
1005 #define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
1006
1007 #define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
1008
1009 #define SCTP_SHA1_CTX struct sctp_sha1_context
1010 #define SCTP_SHA1_INIT sctp_sha1_init
1011 #define SCTP_SHA1_UPDATE sctp_sha1_update
1012 #define SCTP_SHA1_FINAL(x,y) sctp_sha1_final((unsigned char *)x, y)
1013
1014 /* start OOTB only stuff */
1015 /* TODO IFT_LOOP is in net/if_types.h on Linux */
1016 #define IFT_LOOP 0x18
1017
1018 /* sctp_pcb.h */
1019
1020 #if defined(__Userspace_os_Windows)
1021 #define SHUT_RD 1
1022 #define SHUT_WR 2
1023 #define SHUT_RDWR 3
1024 #endif
1025 #define PRU_FLUSH_RD SHUT_RD
1026 #define PRU_FLUSH_WR SHUT_WR
1027 #define PRU_FLUSH_RDWR SHUT_RDWR
1028
1029 /* netinet/ip_var.h defintions are behind an if defined for _KERNEL on FreeBSD */
1030 #define IP_RAWOUTPUT 0x2
1031
1032
1033 /* end OOTB only stuff */
1034
1035 #define AF_CONN 123
1036 struct sockaddr_conn {
1037 #ifdef HAVE_SCONN_LEN
1038 uint8_t sconn_len;
1039 uint8_t sconn_family;
1040 #else
1041 uint16_t sconn_family;
1042 #endif
1043 uint16_t sconn_port;
1044 void *sconn_addr;
1045 };
1046
1047 typedef void *(*start_routine_t)(void *);
1048
1049 extern int
1050 sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine);
1051
1052 void
1053 sctp_userspace_set_threadname(const char *name);
1054
1055 /*
1056 * SCTP protocol specific mbuf flags.
1057 */
1058 #define M_NOTIFICATION M_PROTO5 /* SCTP notification */
1059
1060 /*
1061 * IP output routines
1062 */
1063
1064 /* Defining SCTP_IP_ID macro.
1065 In netinet/ip_output.c, we have u_short ip_id;
1066 In netinet/ip_var.h, we have extern u_short ip_id; (enclosed within _KERNEL_)
1067 See static __inline uint16_t ip_newid(void) in netinet/ip_var.h
1068 */
1069 #define SCTP_IP_ID(inp) (ip_id)
1070
1071 /* need sctphdr to get port in SCTP_IP_OUTPUT. sctphdr defined in sctp.h */
1072 #include <netinet/sctp.h>
1073 extern void sctp_userspace_ip_output(int *result, struct mbuf *o_pak,
1074 sctp_route_t *ro, void *stcb,
1075 uint32_t vrf_id);
1076
1077 #define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) sctp_userspace_ip_output(&result, o_pak, ro, stcb, vrf_id);
1078
1079 #if defined(INET6)
1080 extern void sctp_userspace_ip6_output(int *result, struct mbuf *o_pak,
1081 struct route_in6 *ro, void *stcb,
1082 uint32_t vrf_id);
1083 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) sctp_userspace_ip6_output(&result, o_pak, ro, stcb, vrf_id);
1084 #endif
1085
1086
1087
1088 #if 0
1089 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
1090 { \
1091 if (stcb && stcb->sctp_ep) \
1092 result = ip6_output(o_pak, \
1093 ((struct inpcb *)(stcb->sctp_ep))->in6p_outputopts, \
1094 (ro), 0, 0, ifp, NULL); \
1095 else \
1096 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
1097 }
1098 #endif
1099
1100 struct mbuf *
1101 sctp_get_mbuf_for_msg(unsigned int space_needed, int want_header, int how, int allonebuf, int type);
1102
1103
1104 /* with the current included files, this is defined in Linux but
1105 * in FreeBSD, it is behind a _KERNEL in sys/socket.h ...
1106 */
1107 #if defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) || defined(__Userspace_os_NaCl)
1108 /* stolen from /usr/include/sys/socket.h */
1109 #define CMSG_ALIGN(n) _ALIGN(n)
1110 #elif defined(__Userspace_os_NetBSD)
1111 #define CMSG_ALIGN(n) (((n) + __ALIGNBYTES) & ~__ALIGNBYTES)
1112 #elif defined(__Userspace_os_Darwin)
1113 #if !defined(__DARWIN_ALIGNBYTES)
1114 #define __DARWIN_ALIGNBYTES (sizeof(__darwin_size_t) - 1)
1115 #endif
1116
1117 #if !defined(__DARWIN_ALIGN)
1118 #define __DARWIN_ALIGN(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES)
1119 #endif
1120
1121 #if !defined(__DARWIN_ALIGNBYTES32)
1122 #define __DARWIN_ALIGNBYTES32 (sizeof(__uint32_t) - 1)
1123 #endif
1124
1125 #if !defined(__DARWIN_ALIGN32)
1126 #define __DARWIN_ALIGN32(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES32) &~ __DARWIN_ALIGNBYTES32)
1127 #endif
1128 #define CMSG_ALIGN(n) __DARWIN_ALIGN32(n)
1129 #endif
1130 #define I_AM_HERE \
1131 do { \
1132 SCTP_PRINTF("%s:%d at %s\n", __FILE__, __LINE__ , __func__); \
1133 } while (0)
1134
1135 #ifndef timevalsub
1136 #define timevalsub(tp1, tp2) \
1137 do { \
1138 (tp1)->tv_sec -= (tp2)->tv_sec; \
1139 (tp1)->tv_usec -= (tp2)->tv_usec; \
1140 if ((tp1)->tv_usec < 0) { \
1141 (tp1)->tv_sec--; \
1142 (tp1)->tv_usec += 1000000; \
1143 } \
1144 } while (0)
1145 #endif
1146
1147 #if defined(__Userspace_os_Linux)
1148 #if !defined(TAILQ_FOREACH_SAFE)
1149 #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
1150 for ((var) = ((head)->tqh_first); \
1151 (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
1152 (var) = (tvar))
1153 #endif
1154 #if !defined(LIST_FOREACH_SAFE)
1155 #define LIST_FOREACH_SAFE(var, head, field, tvar) \
1156 for ((var) = ((head)->lh_first); \
1157 (var) && ((tvar) = LIST_NEXT((var), field), 1); \
1158 (var) = (tvar))
1159 #endif
1160 #endif
1161 #if defined(__Userspace_os_DragonFly)
1162 #define TAILQ_FOREACH_SAFE TAILQ_FOREACH_MUTABLE
1163 #define LIST_FOREACH_SAFE LIST_FOREACH_MUTABLE
1164 #endif
1165
1166 #if defined(__Userspace_os_NaCl)
1167 #define timercmp(tvp, uvp, cmp) \
1168 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
1169 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
1170 ((tvp)->tv_sec cmp (uvp)->tv_sec))
1171 #endif
1172
1173 #define SCTP_IS_LISTENING(inp) ((inp->sctp_flags & SCTP_PCB_FLAGS_ACCEPTING) != 0)
1174
1175 #if defined(__Userspace_os_Darwin) || defined(__Userspace_os_DragonFly) || defined(__Userspace_os_Linux) || defined(__Userspace_os_NaCl) || defined(__Userspace_os_NetBSD) || defined(__Userspace_os_Windows) || defined(__Userspace_os_Fuchsia)
1176 int
1177 timingsafe_bcmp(const void *, const void *, size_t);
1178 #endif
1179
1180 #endif
1181