1 /*-
2 * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved.
5 * Copyright (c) 2008-2011, by Brad Penoff. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * a) Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * b) Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the distribution.
16 *
17 * c) Neither the name of Cisco Systems, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #ifndef __sctp_os_userspace_h__
35 #define __sctp_os_userspace_h__
36 /*
37 * Userspace includes
38 * All the opt_xxx.h files are placed in the kernel build directory.
39 * We will place them in userspace stack build directory.
40 */
41
42 #include <errno.h>
43
44 #if defined(__Userspace_os_Windows)
45 #include <winsock2.h>
46 #include <ws2tcpip.h>
47 #include <iphlpapi.h>
48 #include <Mswsock.h>
49 #include <Windows.h>
50 #include "user_environment.h"
51 typedef CRITICAL_SECTION userland_mutex_t;
52 #if WINVER < 0x0600
53 enum {
54 C_SIGNAL = 0,
55 C_BROADCAST = 1,
56 C_MAX_EVENTS = 2
57 };
58 typedef struct
59 {
60 u_int waiters_count;
61 CRITICAL_SECTION waiters_count_lock;
62 HANDLE events_[C_MAX_EVENTS];
63 } userland_cond_t;
64 void InitializeXPConditionVariable(userland_cond_t *);
65 void DeleteXPConditionVariable(userland_cond_t *);
66 int SleepXPConditionVariable(userland_cond_t *, userland_mutex_t *);
67 void WakeAllXPConditionVariable(userland_cond_t *);
68 #define InitializeConditionVariable(cond) InitializeXPConditionVariable(cond)
69 #define DeleteConditionVariable(cond) DeleteXPConditionVariable(cond)
70 #define SleepConditionVariableCS(cond, mtx, time) SleepXPConditionVariable(cond, mtx)
71 #define WakeAllConditionVariable(cond) WakeAllXPConditionVariable(cond)
72 #else
73 #define DeleteConditionVariable(cond)
74 typedef CONDITION_VARIABLE userland_cond_t;
75 #endif
76 typedef HANDLE userland_thread_t;
77 #define ADDRESS_FAMILY unsigned __int8
78 #define IPVERSION 4
79 #define MAXTTL 255
80 /* VS2010 comes with stdint.h */
81 #if _MSC_VER >= 1600
82 #include <stdint.h>
83 #else
84 #define uint64_t unsigned __int64
85 #define uint32_t unsigned __int32
86 #define int32_t __int32
87 #define uint16_t unsigned __int16
88 #define int16_t __int16
89 #define uint8_t unsigned __int8
90 #define int8_t __int8
91 #endif
92 #ifndef _SIZE_T_DEFINED
93 #define size_t __int32
94 #endif
95 #define u_long unsigned __int64
96 #define u_int unsigned __int32
97 #define u_int32_t unsigned __int32
98 #define u_int16_t unsigned __int16
99 #define u_int8_t unsigned __int8
100 #define u_char unsigned char
101 #define n_short unsigned __int16
102 #define u_short unsigned __int16
103 #define n_time unsigned __int32
104 #define sa_family_t unsigned __int8
105 #define ssize_t __int64
106 #define __func__ __FUNCTION__
107
108 #ifndef EWOULDBLOCK
109 #define EWOULDBLOCK WSAEWOULDBLOCK
110 #endif
111 #ifndef EINPROGRESS
112 #define EINPROGRESS WSAEINPROGRESS
113 #endif
114 #ifndef EALREADY
115 #define EALREADY WSAEALREADY
116 #endif
117 #ifndef ENOTSOCK
118 #define ENOTSOCK WSAENOTSOCK
119 #endif
120 #ifndef EDESTADDRREQ
121 #define EDESTADDRREQ WSAEDESTADDRREQ
122 #endif
123 #ifndef EMSGSIZE
124 #define EMSGSIZE WSAEMSGSIZE
125 #endif
126 #ifndef EPROTOTYPE
127 #define EPROTOTYPE WSAEPROTOTYPE
128 #endif
129 #ifndef ENOPROTOOPT
130 #define ENOPROTOOPT WSAENOPROTOOPT
131 #endif
132 #ifndef EPROTONOSUPPORT
133 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
134 #endif
135 #ifndef ESOCKTNOSUPPORT
136 #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
137 #endif
138 #ifndef EOPNOTSUPP
139 #define EOPNOTSUPP WSAEOPNOTSUPP
140 #endif
141 #ifndef ENOTSUP
142 #define ENOTSUP WSAEOPNOTSUPP
143 #endif
144 #ifndef EPFNOSUPPORT
145 #define EPFNOSUPPORT WSAEPFNOSUPPORT
146 #endif
147 #ifndef EAFNOSUPPORT
148 #define EAFNOSUPPORT WSAEAFNOSUPPORT
149 #endif
150 #ifndef EADDRINUSE
151 #define EADDRINUSE WSAEADDRINUSE
152 #endif
153 #ifndef EADDRNOTAVAIL
154 #define EADDRNOTAVAIL WSAEADDRNOTAVAIL
155 #endif
156 #ifndef ENETDOWN
157 #define ENETDOWN WSAENETDOWN
158 #endif
159 #ifndef ENETUNREACH
160 #define ENETUNREACH WSAENETUNREACH
161 #endif
162 #ifndef ENETRESET
163 #define ENETRESET WSAENETRESET
164 #endif
165 #ifndef ECONNABORTED
166 #define ECONNABORTED WSAECONNABORTED
167 #endif
168 #ifndef ECONNRESET
169 #define ECONNRESET WSAECONNRESET
170 #endif
171 #ifndef ENOBUFS
172 #define ENOBUFS WSAENOBUFS
173 #endif
174 #ifndef EISCONN
175 #define EISCONN WSAEISCONN
176 #endif
177 #ifndef ENOTCONN
178 #define ENOTCONN WSAENOTCONN
179 #endif
180 #ifndef ESHUTDOWN
181 #define ESHUTDOWN WSAESHUTDOWN
182 #endif
183 #ifndef ETOOMANYREFS
184 #define ETOOMANYREFS WSAETOOMANYREFS
185 #endif
186 #ifndef ETIMEDOUT
187 #define ETIMEDOUT WSAETIMEDOUT
188 #endif
189 #ifndef ECONNREFUSED
190 #define ECONNREFUSED WSAECONNREFUSED
191 #endif
192 #ifndef ELOOP
193 #define ELOOP WSAELOOP
194 #endif
195 #ifndef EHOSTDOWN
196 #define EHOSTDOWN WSAEHOSTDOWN
197 #endif
198 #ifndef EHOSTUNREACH
199 #define EHOSTUNREACH WSAEHOSTUNREACH
200 #endif
201 #ifndef EPROCLIM
202 #define EPROCLIM WSAEPROCLIM
203 #endif
204 #ifndef EUSERS
205 #define EUSERS WSAEUSERS
206 #endif
207 #ifndef EDQUOT
208 #define EDQUOT WSAEDQUOT
209 #endif
210 #ifndef ESTALE
211 #define ESTALE WSAESTALE
212 #endif
213 #ifndef EREMOTE
214 #define EREMOTE WSAEREMOTE
215 #endif
216
217 typedef char* caddr_t;
218
219 #define bzero(buf, len) memset(buf, 0, len)
220 #define bcopy(srcKey, dstKey, len) memcpy(dstKey, srcKey, len)
221 #if _MSC_VER < 1900
222 #define snprintf(data, size, format, ...) _snprintf_s(data, size, _TRUNCATE, format, __VA_ARGS__)
223 #endif
224 #define inline __inline
225 #define __inline__ __inline
226 #define MSG_EOR 0x8 /* data completes record */
227 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
228
229 #ifdef CMSG_DATA
230 #undef CMSG_DATA
231 #endif
232 /*
233 * The following definitions should apply iff WINVER < 0x0600
234 * but that check doesn't work in all cases. So be more pedantic...
235 */
236 #define CMSG_DATA(x) WSA_CMSG_DATA(x)
237 #define CMSG_ALIGN(x) WSA_CMSGDATA_ALIGN(x)
238 #ifndef CMSG_FIRSTHDR
239 #define CMSG_FIRSTHDR(x) WSA_CMSG_FIRSTHDR(x)
240 #endif
241 #ifndef CMSG_NXTHDR
242 #define CMSG_NXTHDR(x, y) WSA_CMSG_NXTHDR(x, y)
243 #endif
244 #ifndef CMSG_SPACE
245 #define CMSG_SPACE(x) WSA_CMSG_SPACE(x)
246 #endif
247 #ifndef CMSG_LEN
248 #define CMSG_LEN(x) WSA_CMSG_LEN(x)
249 #endif
250
251 /**** from sctp_os_windows.h ***************/
252 #define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
253 #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)
254
255 /*
256 * Access to IFN's to help with src-addr-selection
257 */
258 /* This could return VOID if the index works but for BSD we provide both. */
259 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) \
260 ((ro)->ro_rt != NULL ? (ro)->ro_rt->rt_ifp : NULL)
261 #define SCTP_ROUTE_HAS_VALID_IFN(ro) \
262 ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
263 /******************************************/
264
265 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */
266
267 #define BIG_ENDIAN 1
268 #define LITTLE_ENDIAN 0
269 #ifdef WORDS_BIGENDIAN
270 #define BYTE_ORDER BIG_ENDIAN
271 #else
272 #define BYTE_ORDER LITTLE_ENDIAN
273 #endif
274
275 #else /* !defined(Userspace_os_Windows) */
276 #include <sys/socket.h>
277 #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)
278 #include <pthread.h>
279 #endif
280 typedef pthread_mutex_t userland_mutex_t;
281 typedef pthread_cond_t userland_cond_t;
282 typedef pthread_t userland_thread_t;
283 #endif
284
285 #if defined(__Userspace_os_Windows) || defined(__Userspace_os_NaCl)
286
287 #define IFNAMSIZ 64
288
289 #define random() rand()
290 #define srandom(s) srand(s)
291
292 #define timeradd(tvp, uvp, vvp) \
293 do { \
294 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
295 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
296 if ((vvp)->tv_usec >= 1000000) { \
297 (vvp)->tv_sec++; \
298 (vvp)->tv_usec -= 1000000; \
299 } \
300 } while (0)
301
302 #define timersub(tvp, uvp, vvp) \
303 do { \
304 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
305 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
306 if ((vvp)->tv_usec < 0) { \
307 (vvp)->tv_sec--; \
308 (vvp)->tv_usec += 1000000; \
309 } \
310 } while (0)
311
312 /*#include <packon.h>
313 #pragma pack(push, 1)*/
314 struct ip {
315 u_char ip_hl:4, ip_v:4;
316 u_char ip_tos;
317 u_short ip_len;
318 u_short ip_id;
319 u_short ip_off;
320 #define IP_RP 0x8000
321 #define IP_DF 0x4000
322 #define IP_MF 0x2000
323 #define IP_OFFMASK 0x1fff
324 u_char ip_ttl;
325 u_char ip_p;
326 u_short ip_sum;
327 struct in_addr ip_src, ip_dst;
328 };
329
330 struct ifaddrs {
331 struct ifaddrs *ifa_next;
332 char *ifa_name;
333 unsigned int ifa_flags;
334 struct sockaddr *ifa_addr;
335 struct sockaddr *ifa_netmask;
336 struct sockaddr *ifa_dstaddr;
337 void *ifa_data;
338 };
339
340 struct udphdr {
341 uint16_t uh_sport;
342 uint16_t uh_dport;
343 uint16_t uh_ulen;
344 uint16_t uh_sum;
345 };
346
347 struct iovec {
348 unsigned long len;
349 char *buf;
350 };
351
352 #define iov_base buf
353 #define iov_len len
354
355 struct ifa_msghdr {
356 uint16_t ifam_msglen;
357 unsigned char ifam_version;
358 unsigned char ifam_type;
359 uint32_t ifam_addrs;
360 uint32_t ifam_flags;
361 uint16_t ifam_index;
362 uint32_t ifam_metric;
363 };
364
365 struct ifdevmtu {
366 int ifdm_current;
367 int ifdm_min;
368 int ifdm_max;
369 };
370
371 struct ifkpi {
372 unsigned int ifk_module_id;
373 unsigned int ifk_type;
374 union {
375 void *ifk_ptr;
376 int ifk_value;
377 } ifk_data;
378 };
379
380 struct ifreq {
381 char ifr_name[16];
382 union {
383 struct sockaddr ifru_addr;
384 struct sockaddr ifru_dstaddr;
385 struct sockaddr ifru_broadaddr;
386 short ifru_flags;
387 int ifru_metric;
388 int ifru_mtu;
389 int ifru_phys;
390 int ifru_media;
391 int ifru_intval;
392 char* ifru_data;
393 struct ifdevmtu ifru_devmtu;
394 struct ifkpi ifru_kpi;
395 uint32_t ifru_wake_flags;
396 } ifr_ifru;
397 #define ifr_addr ifr_ifru.ifru_addr
398 #define ifr_dstaddr ifr_ifru.ifru_dstaddr
399 #define ifr_broadaddr ifr_ifru.ifru_broadaddr
400 #define ifr_flags ifr_ifru.ifru_flags[0]
401 #define ifr_prevflags ifr_ifru.ifru_flags[1]
402 #define ifr_metric ifr_ifru.ifru_metric
403 #define ifr_mtu ifr_ifru.ifru_mtu
404 #define ifr_phys ifr_ifru.ifru_phys
405 #define ifr_media ifr_ifru.ifru_media
406 #define ifr_data ifr_ifru.ifru_data
407 #define ifr_devmtu ifr_ifru.ifru_devmtu
408 #define ifr_intval ifr_ifru.ifru_intval
409 #define ifr_kpi ifr_ifru.ifru_kpi
410 #define ifr_wake_flags ifr_ifru.ifru_wake_flags
411 };
412
413 #endif
414
415 #if defined(__Userspace_os_Windows)
416 int Win_getifaddrs(struct ifaddrs**);
417 #define getifaddrs(interfaces) (int)Win_getifaddrs(interfaces)
418 int win_if_nametoindex(const char *);
419 #define if_nametoindex(x) win_if_nametoindex(x)
420 #endif
421
422 #define mtx_lock(arg1)
423 #define mtx_unlock(arg1)
424 #define mtx_assert(arg1,arg2)
425 #define MA_OWNED 7 /* sys/mutex.h typically on FreeBSD */
426 #if !defined(__Userspace_os_FreeBSD)
427 struct mtx {int dummy;};
428 #if !defined(__Userspace_os_NetBSD)
429 struct selinfo {int dummy;};
430 #endif
431 struct sx {int dummy;};
432 #endif
433
434 #include <stdio.h>
435 #include <string.h>
436 /* #include <sys/param.h> in FreeBSD defines MSIZE */
437 /* #include <sys/ktr.h> */
438 /* #include <sys/systm.h> */
439 #if defined(HAVE_SYS_QUEUE_H)
440 #include <sys/queue.h>
441 #else
442 #include <user_queue.h>
443 #endif
444 #include <user_malloc.h>
445 /* #include <sys/kernel.h> */
446 /* #include <sys/sysctl.h> */
447 /* #include <sys/protosw.h> */
448 /* on FreeBSD, this results in a redefintion of SOCK(BUF)_(UN)LOCK and
449 * uknown type of struct mtx for sb_mtx in struct sockbuf */
450 #include "user_socketvar.h" /* MALLOC_DECLARE's M_PCB. Replacement for sys/socketvar.h */
451 /* #include <sys/jail.h> */
452 /* #include <sys/sysctl.h> */
453 #include <user_environment.h>
454 #include <user_atomic.h>
455 #include <user_mbuf.h>
456 /* #include <sys/uio.h> */
457 /* #include <sys/lock.h> */
458 #if defined(__FreeBSD__) && __FreeBSD_version > 602000
459 #include <sys/rwlock.h>
460 #endif
461 /* #include <sys/kthread.h> */
462 #if defined(__FreeBSD__) && __FreeBSD_version > 602000
463 #include <sys/priv.h>
464 #endif
465 /* #include <sys/random.h> */
466 /* #include <sys/limits.h> */
467 /* #include <machine/cpu.h> */
468
469 #if defined(__Userspace_os_Darwin)
470 /* was a 0 byte file. needed for structs if_data(64) and net_event_data */
471 #include <net/if_var.h>
472 #endif
473 #if defined(__Userspace_os_FreeBSD)
474 #include <net/if_types.h>
475 /* #include <net/if_var.h> was a 0 byte file. causes struct mtx redefinition */
476 #endif
477 /* OOTB only - dummy route used at the moment. should we port route to
478 * userspace as well? */
479 /* on FreeBSD, this results in a redefintion of struct route */
480 /* #include <net/route.h> */
481 #if !defined(__Userspace_os_Windows) && !defined(__Userspace_os_NaCl)
482 #include <net/if.h>
483 #include <netinet/in.h>
484 #include <netinet/in_systm.h>
485 #include <netinet/ip.h>
486 #endif
487 #if defined(HAVE_NETINET_IP_ICMP_H)
488 #include <netinet/ip_icmp.h>
489 #else
490 #include <user_ip_icmp.h>
491 #endif
492 /* #include <netinet/in_pcb.h> ported to userspace */
493 #include <user_inpcb.h>
494
495 /* for getifaddrs */
496 #include <sys/types.h>
497 #if !defined(__Userspace_os_Windows)
498 #if !defined(ANDROID) && (defined(INET) || defined(INET6))
499 #include <ifaddrs.h>
500 #endif
501
502 /* for ioctl */
503 #include <sys/ioctl.h>
504
505 /* for close, etc. */
506 #include <unistd.h>
507 #endif
508
509 /* lots of errno's used and needed in userspace */
510
511 /* for offsetof */
512 #include <stddef.h>
513
514 #if defined(SCTP_PROCESS_LEVEL_LOCKS) && !defined(__Userspace_os_Windows)
515 /* for pthread_mutex_lock, pthread_mutex_unlock, etc. */
516 #include <pthread.h>
517 #endif
518
519 #ifdef IPSEC
520 #include <netipsec/ipsec.h>
521 #include <netipsec/key.h>
522 #endif /* IPSEC */
523
524 #ifdef INET6
525 #if defined(__Userspace_os_FreeBSD)
526 #include <sys/domain.h>
527 #endif
528 #ifdef IPSEC
529 #include <netipsec/ipsec6.h>
530 #endif
531 #if !defined(__Userspace_os_Windows)
532 #include <netinet/ip6.h>
533 #include <netinet/icmp6.h>
534 #endif
535 #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)
536 #include "user_ip6_var.h"
537 #else
538 #include <netinet6/ip6_var.h>
539 #endif
540 #if defined(__Userspace_os_FreeBSD)
541 #include <netinet6/in6_pcb.h>
542 #include <netinet6/ip6protosw.h>
543 /* #include <netinet6/nd6.h> was a 0 byte file */
544 #include <netinet6/scope6_var.h>
545 #endif
546 #endif /* INET6 */
547
548 #if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
549 #include <sys/file.h>
550 #include <sys/filedesc.h>
551 #endif
552
553 #include "netinet/sctp_sha1.h"
554
555 #if __FreeBSD_version >= 700000
556 #include <netinet/ip_options.h>
557 #endif
558
559 #define SCTP_PRINTF(...) \
560 if (SCTP_BASE_VAR(debug_printf)) { \
561 SCTP_BASE_VAR(debug_printf)(__VA_ARGS__); \
562 }
563
564 #if defined(__FreeBSD__)
565 #ifndef in6pcb
566 #define in6pcb inpcb
567 #endif
568 #endif
569 /* Declare all the malloc names for all the various mallocs */
570 MALLOC_DECLARE(SCTP_M_MAP);
571 MALLOC_DECLARE(SCTP_M_STRMI);
572 MALLOC_DECLARE(SCTP_M_STRMO);
573 MALLOC_DECLARE(SCTP_M_ASC_ADDR);
574 MALLOC_DECLARE(SCTP_M_ASC_IT);
575 MALLOC_DECLARE(SCTP_M_AUTH_CL);
576 MALLOC_DECLARE(SCTP_M_AUTH_KY);
577 MALLOC_DECLARE(SCTP_M_AUTH_HL);
578 MALLOC_DECLARE(SCTP_M_AUTH_IF);
579 MALLOC_DECLARE(SCTP_M_STRESET);
580 MALLOC_DECLARE(SCTP_M_CMSG);
581 MALLOC_DECLARE(SCTP_M_COPYAL);
582 MALLOC_DECLARE(SCTP_M_VRF);
583 MALLOC_DECLARE(SCTP_M_IFA);
584 MALLOC_DECLARE(SCTP_M_IFN);
585 MALLOC_DECLARE(SCTP_M_TIMW);
586 MALLOC_DECLARE(SCTP_M_MVRF);
587 MALLOC_DECLARE(SCTP_M_ITER);
588 MALLOC_DECLARE(SCTP_M_SOCKOPT);
589
590 #if defined(SCTP_LOCAL_TRACE_BUF)
591
592 #define SCTP_GET_CYCLECOUNT get_cyclecount()
593 #define SCTP_CTR6 sctp_log_trace
594
595 #else
596 #define SCTP_CTR6 CTR6
597 #endif
598
599 /* Empty ktr statement for _Userspace__ (similar to what is done for mac) */
600 #define CTR6(m, d, p1, p2, p3, p4, p5, p6)
601
602
603
604 #define SCTP_BASE_INFO(__m) system_base_info.sctppcbinfo.__m
605 #define SCTP_BASE_STATS system_base_info.sctpstat
606 #define SCTP_BASE_STAT(__m) system_base_info.sctpstat.__m
607 #define SCTP_BASE_SYSCTL(__m) system_base_info.sctpsysctl.__m
608 #define SCTP_BASE_VAR(__m) system_base_info.__m
609
610 /*
611 *
612 */
613 #if !defined(__Userspace_os_Darwin)
614 #define USER_ADDR_NULL (NULL) /* FIX ME: temp */
615 #endif
616
617 #if defined(SCTP_DEBUG)
618 #include <netinet/sctp_constants.h>
619 #define SCTPDBG(level, ...) \
620 { \
621 do { \
622 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level) { \
623 SCTP_PRINTF(__VA_ARGS__); \
624 } \
625 } while (0); \
626 }
627 #define SCTPDBG_ADDR(level, addr) \
628 { \
629 do { \
630 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
631 sctp_print_address(addr); \
632 } \
633 } while (0); \
634 }
635 #else
636 #define SCTPDBG(level, ...)
637 #define SCTPDBG_ADDR(level, addr)
638 #endif
639
640 #ifdef SCTP_LTRACE_CHUNKS
641 #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)
642 #else
643 #define SCTP_LTRACE_CHK(a, b, c, d)
644 #endif
645
646 #ifdef SCTP_LTRACE_ERRORS
647 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
648 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
649 SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
650 (void *)m, (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
651 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
652 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
653 SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
654 (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
655 #else
656 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
657 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
658 #endif
659
660
661 /*
662 * Local address and interface list handling
663 */
664 #define SCTP_MAX_VRF_ID 0
665 #define SCTP_SIZE_OF_VRF_HASH 3
666 #define SCTP_IFNAMSIZ IFNAMSIZ
667 #define SCTP_DEFAULT_VRFID 0
668 #define SCTP_VRF_ADDR_HASH_SIZE 16
669 #define SCTP_VRF_IFN_HASH_SIZE 3
670 #define SCTP_INIT_VRF_TABLEID(vrf)
671
672 #if !defined(__Userspace_os_Windows)
673 #define SCTP_IFN_IS_IFT_LOOP(ifn) (strncmp((ifn)->ifn_name, "lo", 2) == 0)
674 /* BSD definition */
675 /* #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) */
676 /* only used in IPv6 scenario, which isn't supported yet */
677 #define SCTP_ROUTE_IS_REAL_LOOP(ro) 0
678
679 /*
680 * Access to IFN's to help with src-addr-selection
681 */
682 /* This could return VOID if the index works but for BSD we provide both. */
683 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
684 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */
685 #define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
686 #endif
687
688 /*
689 * general memory allocation
690 */
691 #define SCTP_MALLOC(var, type, size, name) \
692 do { \
693 MALLOC(var, type, size, name, M_NOWAIT); \
694 } while (0)
695
696 #define SCTP_FREE(var, type) FREE(var, type)
697
698 #define SCTP_MALLOC_SONAME(var, type, size) \
699 do { \
700 MALLOC(var, type, size, M_SONAME, (M_WAITOK | M_ZERO)); \
701 } while (0)
702
703 #define SCTP_FREE_SONAME(var) FREE(var, M_SONAME)
704
705 #define SCTP_PROCESS_STRUCT struct proc *
706
707 /*
708 * zone allocation functions
709 */
710
711
712 #if defined(SCTP_SIMPLE_ALLOCATOR)
713 /*typedef size_t sctp_zone_t;*/
714 #define SCTP_ZONE_INIT(zone, name, size, number) { \
715 zone = size; \
716 }
717
718 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
719 #define SCTP_ZONE_GET(zone, type) \
720 (type *)malloc(zone);
721
722
723 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
724 #define SCTP_ZONE_FREE(zone, element) { \
725 free(element); \
726 }
727
728 #define SCTP_ZONE_DESTROY(zone)
729 #else
730 /*__Userspace__
731 Compiling & linking notes: Needs libumem, which has been placed in ./user_lib
732 All userspace header files are in ./user_include. Makefile will need the
733 following.
734 CFLAGS = -I./ -Wall
735 LDFLAGS = -L./user_lib -R./user_lib -lumem
736 */
737 #include "user_include/umem.h"
738
739 /* __Userspace__ SCTP_ZONE_INIT: initialize the zone */
740 /*
741 __Userspace__
742 No equivalent function to uma_zone_set_max added yet. (See SCTP_ZONE_INIT in sctp_os_bsd.h
743 for reference). It may not be required as mentioned in
744 http://nixdoc.net/man-pages/FreeBSD/uma_zalloc.9.html that
745 max limits may not enforced on systems with more than one CPU.
746 */
747 #define SCTP_ZONE_INIT(zone, name, size, number) { \
748 zone = umem_cache_create(name, size, 0, NULL, NULL, NULL, NULL, NULL, 0); \
749 }
750
751 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
752 #define SCTP_ZONE_GET(zone, type) \
753 (type *)umem_cache_alloc(zone, UMEM_DEFAULT);
754
755
756 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
757 #define SCTP_ZONE_FREE(zone, element) \
758 umem_cache_free(zone, element);
759
760
761 /* __Userspace__ SCTP_ZONE_DESTROY: destroy the zone */
762 #define SCTP_ZONE_DESTROY(zone) \
763 umem_cache_destroy(zone);
764 #endif
765
766 /* global struct ifaddrs used in sctp_init_ifns_for_vrf getifaddrs call
767 * but references to fields are needed to persist as the vrf is queried.
768 * getifaddrs allocates memory that needs to be freed with a freeifaddrs
769 * call; this global is used to call freeifaddrs upon in sctp_pcb_finish
770 */
771 extern struct ifaddrs *g_interfaces;
772
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 #define sctp_get_tick_count() (ticks)
814
815 /* The packed define for 64 bit platforms */
816 #if !defined(__Userspace_os_Windows)
817 #define SCTP_PACKED __attribute__((packed))
818 #define SCTP_UNUSED __attribute__((unused))
819 #else
820 #define SCTP_PACKED
821 #define SCTP_UNUSED
822 #endif
823
824 /*
825 * Functions
826 */
827 /* Mbuf manipulation and access macros */
828 #define SCTP_BUF_LEN(m) (m->m_len)
829 #define SCTP_BUF_NEXT(m) (m->m_next)
830 #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
831 #define SCTP_BUF_RESV_UF(m, size) m->m_data += size
832 #define SCTP_BUF_AT(m, size) m->m_data + size
833 #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
834 #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
835 #define SCTP_BUF_TYPE(m) (m->m_type)
836 #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
837 #define SCTP_BUF_PREPEND M_PREPEND
838
839 #define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
840 MH_ALIGN(m, len); \
841 } else if ((m->m_flags & M_EXT) == 0) { \
842 M_ALIGN(m, len); \
843 }
844
845 /* We make it so if you have up to 4 threads
846 * writting based on the default size of
847 * the packet log 65 k, that would be
848 * 4 16k packets before we would hit
849 * a problem.
850 */
851 #define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
852
853
854 /*
855 * routes, output, etc.
856 */
857
858 typedef struct sctp_route sctp_route_t;
859 typedef struct sctp_rtentry sctp_rtentry_t;
860
sctp_userspace_rtalloc(sctp_route_t * ro)861 static inline void sctp_userspace_rtalloc(sctp_route_t *ro)
862 {
863 if (ro->ro_rt != NULL) {
864 ro->ro_rt->rt_refcnt++;
865 return;
866 }
867
868 ro->ro_rt = (sctp_rtentry_t *) malloc(sizeof(sctp_rtentry_t));
869 if (ro->ro_rt == NULL)
870 return;
871
872 /* initialize */
873 memset(ro->ro_rt, 0, sizeof(sctp_rtentry_t));
874 ro->ro_rt->rt_refcnt = 1;
875
876 /* set MTU */
877 /* TODO set this based on the ro->ro_dst, looking up MTU with routing socket */
878 #if 0
879 if (userspace_rawroute == -1) {
880 userspace_rawroute = socket(AF_ROUTE, SOCK_RAW, 0);
881 if (userspace_rawroute == -1)
882 return;
883 }
884 #endif
885 ro->ro_rt->rt_rmx.rmx_mtu = 1500; /* FIXME temporary solution */
886
887 /* TODO enable the ability to obtain interface index of route for
888 * SCTP_GET_IF_INDEX_FROM_ROUTE macro.
889 */
890 }
891 #define SCTP_RTALLOC(ro, vrf_id) sctp_userspace_rtalloc((sctp_route_t *)ro)
892
893 /* dummy rtfree needed once user_route.h is included */
sctp_userspace_rtfree(sctp_rtentry_t * rt)894 static inline void sctp_userspace_rtfree(sctp_rtentry_t *rt)
895 {
896 if(rt == NULL) {
897 return;
898 }
899 if(--rt->rt_refcnt > 0) {
900 return;
901 }
902 free(rt);
903 rt = NULL;
904 }
905 #define rtfree(arg1) sctp_userspace_rtfree(arg1)
906
907
908 /*************************/
909 /* MTU */
910 /*************************/
911 int sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af);
912
913 #define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) sctp_userspace_get_mtu_from_ifn(ifn_index, af)
914
915 #define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
916
917 #define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) sctp_userspace_get_mtu_from_ifn(if_nametoindex(((struct ifaddrs *) (sctp_ifn))->ifa_name), AF_INET)
918
919 #define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
920 if (rt != NULL) \
921 rt->rt_rmx.rmx_mtu = mtu; \
922 } while(0)
923
924 /* (de-)register interface event notifications */
925 #define SCTP_REGISTER_INTERFACE(ifhandle, af)
926 #define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
927
928
929 /*************************/
930 /* These are for logging */
931 /*************************/
932 /* return the base ext data pointer */
933 #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
934 /* return the refcnt of the data pointer */
935 #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
936 /* return any buffer related flags, this is
937 * used beyond logging for apple only.
938 */
939 #define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
940
941 /* For BSD this just accesses the M_PKTHDR length
942 * so it operates on an mbuf with hdr flag. Other
943 * O/S's may have seperate packet header and mbuf
944 * chain pointers.. thus the macro.
945 */
946 #define SCTP_HEADER_TO_CHAIN(m) (m)
947 #define SCTP_DETACH_HEADER_FROM_CHAIN(m)
948 #define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
949 #define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
950 #define SCTP_RELEASE_HEADER(m)
951 #define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
952 /* UDP __Userspace__ - dummy definition */
953 #define SCTP_ENABLE_UDP_CSUM(m) m=m
954 /* BSD definition */
955 /* #define SCTP_ENABLE_UDP_CSUM(m) do { \ */
956 /* m->m_pkthdr.csum_flags = CSUM_UDP; \ */
957 /* m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \ */
958 /* } while (0) */
959
960 #define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
961
962
963
964 /* Attach the chain of data into the sendable packet. */
965 #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
966 pak = m; \
967 pak->m_pkthdr.len = packet_length; \
968 } while(0)
969
970 /* Other m_pkthdr type things */
971 /* FIXME need real definitions */
972 #define SCTP_IS_IT_BROADCAST(dst, m) 0
973 /* OOTB only #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0) BSD def */
974 #define SCTP_IS_IT_LOOPBACK(m) 0
975 /* 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 */
976
977
978 /* This converts any input packet header
979 * into the chain of data holders, for BSD
980 * its a NOP.
981 */
982
983 /* get the v6 hop limit */
984 #define SCTP_GET_HLIM(inp, ro) 128 /* As done for __Windows__ */
985 #define IPv6_HOP_LIMIT 128
986
987 /* is the endpoint v6only? */
988 #define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
989 /* is the socket non-blocking? */
990 #define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
991 #define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
992 #define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
993 /* get the socket type */
994 #define SCTP_SO_TYPE(so) ((so)->so_type)
995
996 /* reserve sb space for a socket */
997 #define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
998
999 /* wakeup a socket */
1000 #define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo, so)
1001 /* clear the socket buffer state */
1002 #define SCTP_SB_CLEAR(sb) \
1003 (sb).sb_cc = 0; \
1004 (sb).sb_mb = NULL; \
1005 (sb).sb_mbcnt = 0;
1006
1007 #define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
1008 #define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
1009
1010 /* Future zero copy wakeup/send function */
1011 #define SCTP_ZERO_COPY_EVENT(inp, so)
1012 /* This is re-pulse ourselves for sendbuf */
1013 #define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
1014
1015 #define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
1016
1017 #define SCTP_SHA1_CTX struct sctp_sha1_context
1018 #define SCTP_SHA1_INIT sctp_sha1_init
1019 #define SCTP_SHA1_UPDATE sctp_sha1_update
1020 #define SCTP_SHA1_FINAL(x,y) sctp_sha1_final((unsigned char *)x, y)
1021
1022 /* start OOTB only stuff */
1023 /* TODO IFT_LOOP is in net/if_types.h on Linux */
1024 #define IFT_LOOP 0x18
1025
1026 /* sctp_pcb.h */
1027
1028 #if defined(__Userspace_os_Windows)
1029 #define SHUT_RD 1
1030 #define SHUT_WR 2
1031 #define SHUT_RDWR 3
1032 #endif
1033 #define PRU_FLUSH_RD SHUT_RD
1034 #define PRU_FLUSH_WR SHUT_WR
1035 #define PRU_FLUSH_RDWR SHUT_RDWR
1036
1037 /* netinet/ip_var.h defintions are behind an if defined for _KERNEL on FreeBSD */
1038 #define IP_RAWOUTPUT 0x2
1039
1040
1041 /* end OOTB only stuff */
1042
1043 #define AF_CONN 123
1044 struct sockaddr_conn {
1045 #ifdef HAVE_SCONN_LEN
1046 uint8_t sconn_len;
1047 #endif
1048 uint8_t sconn_family;
1049 uint16_t sconn_port;
1050 void *sconn_addr;
1051 };
1052
1053 /*
1054 * SCTP protocol specific mbuf flags.
1055 */
1056 #define M_NOTIFICATION M_PROTO5 /* SCTP notification */
1057
1058 /*
1059 * IP output routines
1060 */
1061
1062 /* Defining SCTP_IP_ID macro.
1063 In netinet/ip_output.c, we have u_short ip_id;
1064 In netinet/ip_var.h, we have extern u_short ip_id; (enclosed within _KERNEL_)
1065 See static __inline uint16_t ip_newid(void) in netinet/ip_var.h
1066 */
1067 #define SCTP_IP_ID(inp) (ip_id)
1068
1069 /* need sctphdr to get port in SCTP_IP_OUTPUT. sctphdr defined in sctp.h */
1070 #include <netinet/sctp.h>
1071 extern void sctp_userspace_ip_output(int *result, struct mbuf *o_pak,
1072 sctp_route_t *ro, void *stcb,
1073 uint32_t vrf_id);
1074
1075 #define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) sctp_userspace_ip_output(&result, o_pak, ro, stcb, vrf_id);
1076
1077 #if defined(INET6)
1078 extern void sctp_userspace_ip6_output(int *result, struct mbuf *o_pak,
1079 struct route_in6 *ro, void *stcb,
1080 uint32_t vrf_id);
1081 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) sctp_userspace_ip6_output(&result, o_pak, ro, stcb, vrf_id);
1082 #endif
1083
1084
1085
1086 #if 0
1087 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
1088 { \
1089 if (stcb && stcb->sctp_ep) \
1090 result = ip6_output(o_pak, \
1091 ((struct in6pcb *)(stcb->sctp_ep))->in6p_outputopts, \
1092 (ro), 0, 0, ifp, NULL); \
1093 else \
1094 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
1095 }
1096 #endif
1097
1098 struct mbuf *
1099 sctp_get_mbuf_for_msg(unsigned int space_needed, int want_header, int how, int allonebuf, int type);
1100
1101
1102 /* with the current included files, this is defined in Linux but
1103 * in FreeBSD, it is behind a _KERNEL in sys/socket.h ...
1104 */
1105 #if defined(__Userspace_os_DragonFly) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) || defined(__Userspace_os_NaCl)
1106 /* stolen from /usr/include/sys/socket.h */
1107 #define CMSG_ALIGN(n) _ALIGN(n)
1108 #elif defined(__Userspace_os_NetBSD)
1109 #define CMSG_ALIGN(n) (((n) + __ALIGNBYTES) & ~__ALIGNBYTES)
1110 #elif defined(__Userspace_os_Darwin)
1111 #if !defined(__DARWIN_ALIGNBYTES)
1112 #define __DARWIN_ALIGNBYTES (sizeof(__darwin_size_t) - 1)
1113 #endif
1114
1115 #if !defined(__DARWIN_ALIGN)
1116 #define __DARWIN_ALIGN(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES)
1117 #endif
1118
1119 #if !defined(__DARWIN_ALIGNBYTES32)
1120 #define __DARWIN_ALIGNBYTES32 (sizeof(__uint32_t) - 1)
1121 #endif
1122
1123 #if !defined(__DARWIN_ALIGN32)
1124 #define __DARWIN_ALIGN32(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES32) &~ __DARWIN_ALIGNBYTES32)
1125 #endif
1126 #define CMSG_ALIGN(n) __DARWIN_ALIGN32(n)
1127 #endif
1128 #define I_AM_HERE \
1129 do { \
1130 SCTP_PRINTF("%s:%d at %s\n", __FILE__, __LINE__ , __FUNCTION__); \
1131 } while (0)
1132
1133 #ifndef timevalsub
1134 #define timevalsub(tp1, tp2) \
1135 do { \
1136 (tp1)->tv_sec -= (tp2)->tv_sec; \
1137 (tp1)->tv_usec -= (tp2)->tv_usec; \
1138 if ((tp1)->tv_usec < 0) { \
1139 (tp1)->tv_sec--; \
1140 (tp1)->tv_usec += 1000000; \
1141 } \
1142 } while (0)
1143 #endif
1144
1145 #if defined(__Userspace_os_Linux)
1146 #if !defined(TAILQ_FOREACH_SAFE)
1147 #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
1148 for ((var) = ((head)->tqh_first); \
1149 (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
1150 (var) = (tvar))
1151 #endif
1152 #if !defined(LIST_FOREACH_SAFE)
1153 #define LIST_FOREACH_SAFE(var, head, field, tvar) \
1154 for ((var) = ((head)->lh_first); \
1155 (var) && ((tvar) = LIST_NEXT((var), field), 1); \
1156 (var) = (tvar))
1157 #endif
1158 #endif
1159 #if defined(__Userspace_os_DragonFly)
1160 #define TAILQ_FOREACH_SAFE TAILQ_FOREACH_MUTABLE
1161 #define LIST_FOREACH_SAFE LIST_FOREACH_MUTABLE
1162 #endif
1163
1164 #if defined(__Userspace_os_NaCl)
1165 #define timercmp(tvp, uvp, cmp) \
1166 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
1167 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
1168 ((tvp)->tv_sec cmp (uvp)->tv_sec))
1169 #endif
1170
1171 #endif
1172