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 #define uint64_t unsigned __int64 81 #define u_long unsigned __int64 82 #define u_int unsigned __int32 83 #define uint32_t unsigned __int32 84 #define u_int32_t unsigned __int32 85 #define int32_t __int32 86 #define int16_t __int16 87 #define uint16_t unsigned __int16 88 #define u_int16_t unsigned __int16 89 #define uint8_t unsigned __int8 90 #define u_int8_t unsigned __int8 91 #define int8_t __int8 92 #define u_char unsigned char 93 #define n_short unsigned __int16 94 #define u_short unsigned __int16 95 #define ssize_t __int64 96 #define size_t __int32 97 #define in_addr_t unsigned __int32 98 #define in_port_t unsigned __int16 99 #define n_time unsigned __int32 100 #define sa_family_t unsigned __int8 101 #define IFNAMSIZ 64 102 #define __func__ __FUNCTION__ 103 104 #ifndef EWOULDBLOCK 105 #define EWOULDBLOCK WSAEWOULDBLOCK 106 #endif 107 #ifndef EINPROGRESS 108 #define EINPROGRESS WSAEINPROGRESS 109 #endif 110 #ifndef EALREADY 111 #define EALREADY WSAEALREADY 112 #endif 113 #ifndef ENOTSOCK 114 #define ENOTSOCK WSAENOTSOCK 115 #endif 116 #ifndef EDESTADDRREQ 117 #define EDESTADDRREQ WSAEDESTADDRREQ 118 #endif 119 #ifndef EMSGSIZE 120 #define EMSGSIZE WSAEMSGSIZE 121 #endif 122 #ifndef EPROTOTYPE 123 #define EPROTOTYPE WSAEPROTOTYPE 124 #endif 125 #ifndef ENOPROTOOPT 126 #define ENOPROTOOPT WSAENOPROTOOPT 127 #endif 128 #ifndef EPROTONOSUPPORT 129 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT 130 #endif 131 #ifndef ESOCKTNOSUPPORT 132 #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT 133 #endif 134 #ifndef EOPNOTSUPP 135 #define EOPNOTSUPP WSAEOPNOTSUPP 136 #endif 137 #ifndef ENOTSUP 138 #define ENOTSUP WSAEOPNOTSUPP 139 #endif 140 #ifndef EPFNOSUPPORT 141 #define EPFNOSUPPORT WSAEPFNOSUPPORT 142 #endif 143 #ifndef EAFNOSUPPORT 144 #define EAFNOSUPPORT WSAEAFNOSUPPORT 145 #endif 146 #ifndef EADDRINUSE 147 #define EADDRINUSE WSAEADDRINUSE 148 #endif 149 #ifndef EADDRNOTAVAIL 150 #define EADDRNOTAVAIL WSAEADDRNOTAVAIL 151 #endif 152 #ifndef ENETDOWN 153 #define ENETDOWN WSAENETDOWN 154 #endif 155 #ifndef ENETUNREACH 156 #define ENETUNREACH WSAENETUNREACH 157 #endif 158 #ifndef ENETRESET 159 #define ENETRESET WSAENETRESET 160 #endif 161 #ifndef ECONNABORTED 162 #define ECONNABORTED WSAECONNABORTED 163 #endif 164 #ifndef ECONNRESET 165 #define ECONNRESET WSAECONNRESET 166 #endif 167 #ifndef ENOBUFS 168 #define ENOBUFS WSAENOBUFS 169 #endif 170 #ifndef EISCONN 171 #define EISCONN WSAEISCONN 172 #endif 173 #ifndef ENOTCONN 174 #define ENOTCONN WSAENOTCONN 175 #endif 176 #ifndef ESHUTDOWN 177 #define ESHUTDOWN WSAESHUTDOWN 178 #endif 179 #ifndef ETOOMANYREFS 180 #define ETOOMANYREFS WSAETOOMANYREFS 181 #endif 182 #ifndef ETIMEDOUT 183 #define ETIMEDOUT WSAETIMEDOUT 184 #endif 185 #ifndef ECONNREFUSED 186 #define ECONNREFUSED WSAECONNREFUSED 187 #endif 188 #ifndef ELOOP 189 #define ELOOP WSAELOOP 190 #endif 191 #ifndef EHOSTDOWN 192 #define EHOSTDOWN WSAEHOSTDOWN 193 #endif 194 #ifndef EHOSTUNREACH 195 #define EHOSTUNREACH WSAEHOSTUNREACH 196 #endif 197 #ifndef EPROCLIM 198 #define EPROCLIM WSAEPROCLIM 199 #endif 200 #ifndef EUSERS 201 #define EUSERS WSAEUSERS 202 #endif 203 #ifndef EDQUOT 204 #define EDQUOT WSAEDQUOT 205 #endif 206 #ifndef ESTALE 207 #define ESTALE WSAESTALE 208 #endif 209 #ifndef EREMOTE 210 #define EREMOTE WSAEREMOTE 211 #endif 212 213 typedef char* caddr_t; 214 215 int Win_getifaddrs(struct ifaddrs**); 216 #define getifaddrs(interfaces) (int)Win_getifaddrs(interfaces) 217 int win_if_nametoindex(const char *); 218 #define if_nametoindex(x) win_if_nametoindex(x) 219 220 #define bzero(buf, len) memset(buf, 0, len) 221 #define bcopy(srcKey, dstKey, len) memcpy(dstKey, srcKey, len) 222 #define snprintf(data, size, format, name) _snprintf_s(data, size, _TRUNCATE, format, name) 223 #define inline __inline 224 #define __inline__ __inline 225 #define random() rand() 226 #define srandom(s) srand(s) 227 #define MSG_EOR 0x8 /* data completes record */ 228 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 229 230 #ifdef CMSG_DATA 231 #undef CMSG_DATA 232 #endif 233 #define CMSG_DATA(x) WSA_CMSG_DATA(x) 234 #define CMSG_ALIGN(x) WSA_CMSGDATA_ALIGN(x) 235 #if WINVER < 0x0600 236 #define CMSG_FIRSTHDR(x) WSA_CMSG_FIRSTHDR(x) 237 #define CMSG_NXTHDR(x, y) WSA_CMSG_NXTHDR(x, y) 238 #define CMSG_SPACE(x) WSA_CMSG_SPACE(x) 239 #define CMSG_LEN(x) WSA_CMSG_LEN(x) 240 #endif 241 242 /**** from sctp_os_windows.h ***************/ 243 #define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP) 244 #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) 245 246 /* 247 * Access to IFN's to help with src-addr-selection 248 */ 249 /* This could return VOID if the index works but for BSD we provide both. */ 250 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) \ 251 ((ro)->ro_rt != NULL ? (ro)->ro_rt->rt_ifp : NULL) 252 #define SCTP_ROUTE_HAS_VALID_IFN(ro) \ 253 ((ro)->ro_rt && (ro)->ro_rt->rt_ifp) 254 /******************************************/ 255 256 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */ 257 258 #define timeradd(tvp, uvp, vvp) \ 259 do { \ 260 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 261 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 262 if ((vvp)->tv_usec >= 1000000) { \ 263 (vvp)->tv_sec++; \ 264 (vvp)->tv_usec -= 1000000; \ 265 } \ 266 } while (0) 267 268 #define timersub(tvp, uvp, vvp) \ 269 do { \ 270 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 271 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 272 if ((vvp)->tv_usec < 0) { \ 273 (vvp)->tv_sec--; \ 274 (vvp)->tv_usec += 1000000; \ 275 } \ 276 } while (0) 277 278 #define BIG_ENDIAN 1 279 #define LITTLE_ENDIAN 0 280 #ifdef WORDS_BIGENDIAN 281 #define BYTE_ORDER BIG_ENDIAN 282 #else 283 #define BYTE_ORDER LITTLE_ENDIAN 284 #endif 285 286 struct iovec { 287 ULONG len; 288 CHAR FAR *buf; 289 }; 290 291 #define iov_base buf 292 #define iov_len len 293 294 struct ifa_msghdr { 295 unsigned __int16 ifam_msglen; 296 unsigned char ifam_version; 297 unsigned char ifam_type; 298 __int32 ifam_addrs; 299 __int32 ifam_flags; 300 unsigned __int16 ifam_index; 301 __int32 ifam_metric; 302 }; 303 304 struct ifdevmtu { 305 int ifdm_current; 306 int ifdm_min; 307 int ifdm_max; 308 }; 309 310 struct ifkpi { 311 unsigned int ifk_module_id; 312 unsigned int ifk_type; 313 union { 314 void *ifk_ptr; 315 int ifk_value; 316 } ifk_data; 317 }; 318 319 struct ifreq { 320 char ifr_name[16]; 321 union { 322 struct sockaddr ifru_addr; 323 struct sockaddr ifru_dstaddr; 324 struct sockaddr ifru_broadaddr; 325 short ifru_flags; 326 int ifru_metric; 327 int ifru_mtu; 328 int ifru_phys; 329 int ifru_media; 330 int ifru_intval; 331 char* ifru_data; 332 struct ifdevmtu ifru_devmtu; 333 struct ifkpi ifru_kpi; 334 unsigned __int32 ifru_wake_flags; 335 } ifr_ifru; 336 #define ifr_addr ifr_ifru.ifru_addr 337 #define ifr_dstaddr ifr_ifru.ifru_dstaddr 338 #define ifr_broadaddr ifr_ifru.ifru_broadaddr 339 #define ifr_flags ifr_ifru.ifru_flags[0] 340 #define ifr_prevflags ifr_ifru.ifru_flags[1] 341 #define ifr_metric ifr_ifru.ifru_metric 342 #define ifr_mtu ifr_ifru.ifru_mtu 343 #define ifr_phys ifr_ifru.ifru_phys 344 #define ifr_media ifr_ifru.ifru_media 345 #define ifr_data ifr_ifru.ifru_data 346 #define ifr_devmtu ifr_ifru.ifru_devmtu 347 #define ifr_intval ifr_ifru.ifru_intval 348 #define ifr_kpi ifr_ifru.ifru_kpi 349 #define ifr_wake_flags ifr_ifru.ifru_wake_flags 350 }; 351 352 /*#include <packon.h> 353 #pragma pack(push, 1)*/ 354 struct ip { 355 u_char ip_hl:4, ip_v:4; 356 u_char ip_tos; 357 u_short ip_len; 358 u_short ip_id; 359 u_short ip_off; 360 #define IP_RP 0x8000 361 #define IP_DF 0x4000 362 #define IP_MF 0x2000 363 #define IP_OFFMASK 0x1fff 364 u_char ip_ttl; 365 u_char ip_p; 366 u_short ip_sum; 367 struct in_addr ip_src, ip_dst; 368 }; 369 370 struct ifaddrs { 371 struct ifaddrs *ifa_next; 372 char *ifa_name; 373 unsigned int ifa_flags; 374 struct sockaddr *ifa_addr; 375 struct sockaddr *ifa_netmask; 376 struct sockaddr *ifa_dstaddr; 377 void *ifa_data; 378 }; 379 380 struct udphdr { 381 unsigned __int16 uh_sport; 382 unsigned __int16 uh_dport; 383 unsigned __int16 uh_ulen; 384 unsigned __int16 uh_sum; 385 }; 386 387 #else /* !defined(Userspace_os_Windows) */ 388 #include <sys/cdefs.h> /* needed? added from old __FreeBSD__ */ 389 #include <sys/socket.h> 390 #if defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) 391 #include <pthread.h> 392 #endif 393 typedef pthread_mutex_t userland_mutex_t; 394 typedef pthread_cond_t userland_cond_t; 395 typedef pthread_t userland_thread_t; 396 #endif 397 398 #define mtx_lock(arg1) 399 #define mtx_unlock(arg1) 400 #define mtx_assert(arg1,arg2) 401 #define MA_OWNED 7 /* sys/mutex.h typically on FreeBSD */ 402 #if !defined(__Userspace_os_FreeBSD) 403 struct mtx {int dummy;}; 404 struct selinfo {int dummy;}; 405 struct sx {int dummy;}; 406 #endif 407 408 #include <stdio.h> 409 #include <string.h> 410 /* #include <sys/param.h> in FreeBSD defines MSIZE */ 411 /* #include <sys/ktr.h> */ 412 /* #include <sys/systm.h> */ 413 #if defined(__Userspace_os_Windows) 414 #include <user_queue.h> 415 #else 416 #include <sys/queue.h> 417 #endif 418 #include <user_malloc.h> 419 /* #include <sys/kernel.h> */ 420 /* #include <sys/sysctl.h> */ 421 /* #include <sys/protosw.h> */ 422 /* on FreeBSD, this results in a redefintion of SOCK(BUF)_(UN)LOCK and 423 * uknown type of struct mtx for sb_mtx in struct sockbuf */ 424 #include "user_socketvar.h" /* MALLOC_DECLARE's M_PCB. Replacement for sys/socketvar.h */ 425 /* #include <sys/jail.h> */ 426 /* #include <sys/sysctl.h> */ 427 #include <user_environment.h> 428 #include <user_atomic.h> 429 #include <user_mbuf.h> 430 /* #include <sys/uio.h> */ 431 /* #include <sys/lock.h> */ 432 #if defined(__FreeBSD__) && __FreeBSD_version > 602000 433 #include <sys/rwlock.h> 434 #endif 435 /* #include <sys/kthread.h> */ 436 #if defined(__FreeBSD__) && __FreeBSD_version > 602000 437 #include <sys/priv.h> 438 #endif 439 /* #include <sys/random.h> */ 440 /* #include <sys/limits.h> */ 441 /* #include <machine/cpu.h> */ 442 443 #if defined(__Userspace_os_Darwin) 444 /* was a 0 byte file. needed for structs if_data(64) and net_event_data */ 445 #include <net/if_var.h> 446 #endif 447 #if defined(__Userspace_os_FreeBSD) 448 #include <net/if_types.h> 449 /* #include <net/if_var.h> was a 0 byte file. causes struct mtx redefinition */ 450 #endif 451 /* OOTB only - dummy route used at the moment. should we port route to 452 * userspace as well? */ 453 /* on FreeBSD, this results in a redefintion of struct route */ 454 /* #include <net/route.h> */ 455 #if !defined(__Userspace_os_Windows) 456 #include <net/if.h> 457 #include <netinet/in.h> 458 #include <netinet/in_systm.h> 459 #include <netinet/ip.h> 460 #include <netinet/ip_icmp.h> 461 #else 462 #include <user_ip_icmp.h> 463 #endif 464 /* #include <netinet/in_pcb.h> ported to userspace */ 465 #include <user_inpcb.h> 466 467 /* for getifaddrs */ 468 #include <sys/types.h> 469 #if !defined(__Userspace_os_Windows) 470 #include <ifaddrs.h> 471 472 /* for ioctl */ 473 #include <sys/ioctl.h> 474 475 /* for close, etc. */ 476 #include <unistd.h> 477 #endif 478 479 /* lots of errno's used and needed in userspace */ 480 481 /* for offsetof */ 482 #include <stddef.h> 483 484 #if defined(SCTP_PROCESS_LEVEL_LOCKS) && !defined(__Userspace_os_Windows) 485 /* for pthread_mutex_lock, pthread_mutex_unlock, etc. */ 486 #include <pthread.h> 487 #endif 488 489 #ifdef IPSEC 490 #include <netipsec/ipsec.h> 491 #include <netipsec/key.h> 492 #endif /* IPSEC */ 493 494 #ifdef INET6 495 #if defined(__Userspace_os_FreeBSD) 496 #include <sys/domain.h> 497 #endif 498 #ifdef IPSEC 499 #include <netipsec/ipsec6.h> 500 #endif 501 #if !defined(__Userspace_os_Windows) 502 #include <netinet/ip6.h> 503 #include <netinet/icmp6.h> 504 #endif 505 #if defined(__Userspace_os_Linux) || defined(__Userspace_os_Darwin) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) ||defined(__Userspace_os_Windows) 506 #include "user_ip6_var.h" 507 #else 508 #include <netinet6/ip6_var.h> 509 #endif 510 #if defined(__Userspace_os_FreeBSD) 511 #include <netinet6/in6_pcb.h> 512 #include <netinet6/ip6protosw.h> 513 /* #include <netinet6/nd6.h> was a 0 byte file */ 514 #include <netinet6/scope6_var.h> 515 #endif 516 #endif /* INET6 */ 517 518 #if defined(HAVE_SCTP_PEELOFF_SOCKOPT) 519 #include <sys/file.h> 520 #include <sys/filedesc.h> 521 #endif 522 523 #if __FreeBSD_version >= 700000 524 #include <netinet/ip_options.h> 525 #endif 526 527 #define SCTP_PRINTF(...) \ 528 if (SCTP_BASE_VAR(debug_printf)) { \ 529 SCTP_BASE_VAR(debug_printf)(__VA_ARGS__); \ 530 } 531 532 #if defined(__FreeBSD__) 533 #ifndef in6pcb 534 #define in6pcb inpcb 535 #endif 536 #endif 537 /* Declare all the malloc names for all the various mallocs */ 538 MALLOC_DECLARE(SCTP_M_MAP); 539 MALLOC_DECLARE(SCTP_M_STRMI); 540 MALLOC_DECLARE(SCTP_M_STRMO); 541 MALLOC_DECLARE(SCTP_M_ASC_ADDR); 542 MALLOC_DECLARE(SCTP_M_ASC_IT); 543 MALLOC_DECLARE(SCTP_M_AUTH_CL); 544 MALLOC_DECLARE(SCTP_M_AUTH_KY); 545 MALLOC_DECLARE(SCTP_M_AUTH_HL); 546 MALLOC_DECLARE(SCTP_M_AUTH_IF); 547 MALLOC_DECLARE(SCTP_M_STRESET); 548 MALLOC_DECLARE(SCTP_M_CMSG); 549 MALLOC_DECLARE(SCTP_M_COPYAL); 550 MALLOC_DECLARE(SCTP_M_VRF); 551 MALLOC_DECLARE(SCTP_M_IFA); 552 MALLOC_DECLARE(SCTP_M_IFN); 553 MALLOC_DECLARE(SCTP_M_TIMW); 554 MALLOC_DECLARE(SCTP_M_MVRF); 555 MALLOC_DECLARE(SCTP_M_ITER); 556 MALLOC_DECLARE(SCTP_M_SOCKOPT); 557 558 #if defined(SCTP_LOCAL_TRACE_BUF) 559 560 #define SCTP_GET_CYCLECOUNT get_cyclecount() 561 #define SCTP_CTR6 sctp_log_trace 562 563 #else 564 #define SCTP_CTR6 CTR6 565 #endif 566 567 /* Empty ktr statement for _Userspace__ (similar to what is done for mac) */ 568 #define CTR6(m, d, p1, p2, p3, p4, p5, p6) 569 570 571 572 #define SCTP_BASE_INFO(__m) system_base_info.sctppcbinfo.__m 573 #define SCTP_BASE_STATS system_base_info.sctpstat 574 #define SCTP_BASE_STAT(__m) system_base_info.sctpstat.__m 575 #define SCTP_BASE_SYSCTL(__m) system_base_info.sctpsysctl.__m 576 #define SCTP_BASE_VAR(__m) system_base_info.__m 577 578 /* 579 * 580 */ 581 #if !defined(__Userspace_os_Darwin) 582 #define USER_ADDR_NULL (NULL) /* FIX ME: temp */ 583 #endif 584 585 #if defined(SCTP_DEBUG) 586 #include <netinet/sctp_constants.h> 587 #define SCTPDBG(level, ...) \ 588 { \ 589 do { \ 590 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level) { \ 591 SCTP_PRINTF(__VA_ARGS__); \ 592 } \ 593 } while (0); \ 594 } 595 #define SCTPDBG_ADDR(level, addr) \ 596 { \ 597 do { \ 598 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \ 599 sctp_print_address(addr); \ 600 } \ 601 } while (0); \ 602 } 603 #else 604 #define SCTPDBG(level, ...) 605 #define SCTPDBG_ADDR(level, addr) 606 #endif 607 608 #ifdef SCTP_LTRACE_CHUNKS 609 #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) 610 #else 611 #define SCTP_LTRACE_CHK(a, b, c, d) 612 #endif 613 614 #ifdef SCTP_LTRACE_ERRORS 615 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \ 616 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \ 617 SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \ 618 (void *)m, (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err); 619 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \ 620 if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \ 621 SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \ 622 (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err); 623 #else 624 #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) 625 #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) 626 #endif 627 628 629 /* 630 * Local address and interface list handling 631 */ 632 #define SCTP_MAX_VRF_ID 0 633 #define SCTP_SIZE_OF_VRF_HASH 3 634 #define SCTP_IFNAMSIZ IFNAMSIZ 635 #define SCTP_DEFAULT_VRFID 0 636 #define SCTP_VRF_ADDR_HASH_SIZE 16 637 #define SCTP_VRF_IFN_HASH_SIZE 3 638 #define SCTP_INIT_VRF_TABLEID(vrf) 639 640 #if !defined(__Userspace_os_Windows) 641 #define SCTP_IFN_IS_IFT_LOOP(ifn) (strncmp((ifn)->ifn_name, "lo", 2) == 0) 642 /* BSD definition */ 643 /* #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) */ 644 /* only used in IPv6 scenario, which isn't supported yet */ 645 #define SCTP_ROUTE_IS_REAL_LOOP(ro) 0 646 647 /* 648 * Access to IFN's to help with src-addr-selection 649 */ 650 /* This could return VOID if the index works but for BSD we provide both. */ 651 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp 652 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles... TODO use routing socket to determine */ 653 #define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp) 654 #endif 655 656 /* 657 * general memory allocation 658 */ 659 #define SCTP_MALLOC(var, type, size, name) \ 660 do { \ 661 MALLOC(var, type, size, name, M_NOWAIT); \ 662 } while (0) 663 664 #define SCTP_FREE(var, type) FREE(var, type) 665 666 #define SCTP_MALLOC_SONAME(var, type, size) \ 667 do { \ 668 MALLOC(var, type, size, M_SONAME, (M_WAITOK | M_ZERO)); \ 669 } while (0) 670 671 #define SCTP_FREE_SONAME(var) FREE(var, M_SONAME) 672 673 #define SCTP_PROCESS_STRUCT struct proc * 674 675 /* 676 * zone allocation functions 677 */ 678 679 680 #if defined(SCTP_SIMPLE_ALLOCATOR) 681 /*typedef size_t sctp_zone_t;*/ 682 #define SCTP_ZONE_INIT(zone, name, size, number) { \ 683 zone = size; \ 684 } 685 686 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */ 687 #define SCTP_ZONE_GET(zone, type) \ 688 (type *)malloc(zone); 689 690 691 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */ 692 #define SCTP_ZONE_FREE(zone, element) { \ 693 free(element); \ 694 } 695 696 #define SCTP_ZONE_DESTROY(zone) 697 #else 698 /*__Userspace__ 699 Compiling & linking notes: Needs libumem, which has been placed in ./user_lib 700 All userspace header files are in ./user_include. Makefile will need the 701 following. 702 CFLAGS = -I./ -Wall 703 LDFLAGS = -L./user_lib -R./user_lib -lumem 704 */ 705 #include "user_include/umem.h" 706 707 /* __Userspace__ SCTP_ZONE_INIT: initialize the zone */ 708 /* 709 __Userspace__ 710 No equivalent function to uma_zone_set_max added yet. (See SCTP_ZONE_INIT in sctp_os_bsd.h 711 for reference). It may not be required as mentioned in 712 http://nixdoc.net/man-pages/FreeBSD/uma_zalloc.9.html that 713 max limits may not enforced on systems with more than one CPU. 714 */ 715 #define SCTP_ZONE_INIT(zone, name, size, number) { \ 716 zone = umem_cache_create(name, size, 0, NULL, NULL, NULL, NULL, NULL, 0); \ 717 } 718 719 /* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */ 720 #define SCTP_ZONE_GET(zone, type) \ 721 (type *)umem_cache_alloc(zone, UMEM_DEFAULT); 722 723 724 /* __Userspace__ SCTP_ZONE_FREE: free element from the zone */ 725 #define SCTP_ZONE_FREE(zone, element) \ 726 umem_cache_free(zone, element); 727 728 729 /* __Userspace__ SCTP_ZONE_DESTROY: destroy the zone */ 730 #define SCTP_ZONE_DESTROY(zone) \ 731 umem_cache_destroy(zone); 732 #endif 733 734 /* global struct ifaddrs used in sctp_init_ifns_for_vrf getifaddrs call 735 * but references to fields are needed to persist as the vrf is queried. 736 * getifaddrs allocates memory that needs to be freed with a freeifaddrs 737 * call; this global is used to call freeifaddrs upon in sctp_pcb_finish 738 */ 739 extern struct ifaddrs *g_interfaces; 740 741 742 /* 743 * __Userspace__ Defining sctp_hashinit_flags() and sctp_hashdestroy() for userland. 744 */ 745 void *sctp_hashinit_flags(int elements, struct malloc_type *type, 746 u_long *hashmask, int flags); 747 void 748 sctp_hashdestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask); 749 750 void 751 sctp_hashfreedestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask); 752 753 754 #define HASH_NOWAIT 0x00000001 755 #define HASH_WAITOK 0x00000002 756 757 /* M_PCB is MALLOC_DECLARE'd in sys/socketvar.h */ 758 #define SCTP_HASH_INIT(size, hashmark) sctp_hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT) 759 760 #define SCTP_HASH_FREE(table, hashmark) sctp_hashdestroy(table, M_PCB, hashmark) 761 762 #define SCTP_HASH_FREE_DESTROY(table, hashmark) sctp_hashfreedestroy(table, M_PCB, hashmark) 763 #define SCTP_M_COPYM m_copym 764 765 /* 766 * timers 767 */ 768 /* __Userspace__ 769 * user_sctp_callout.h has typedef struct sctp_callout sctp_os_timer_t; 770 * which is used in the timer related functions such as 771 * SCTP_OS_TIMER_INIT etc. 772 */ 773 #include <netinet/sctp_callout.h> 774 775 /* __Userspace__ Creating a receive thread */ 776 #include <user_recv_thread.h> 777 778 /*__Userspace__ defining KTR_SUBSYS 1 as done in sctp_os_macosx.h */ 779 #define KTR_SUBSYS 1 780 781 #define sctp_get_tick_count() (ticks) 782 783 /* The packed define for 64 bit platforms */ 784 #if !defined(__Userspace_os_Windows) 785 #define SCTP_PACKED __attribute__((packed)) 786 #define SCTP_UNUSED __attribute__((unused)) 787 #else 788 #define SCTP_PACKED 789 #define SCTP_UNUSED 790 #endif 791 792 /* 793 * Functions 794 */ 795 /* Mbuf manipulation and access macros */ 796 #define SCTP_BUF_LEN(m) (m->m_len) 797 #define SCTP_BUF_NEXT(m) (m->m_next) 798 #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt) 799 #define SCTP_BUF_RESV_UF(m, size) m->m_data += size 800 #define SCTP_BUF_AT(m, size) m->m_data + size 801 #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT) 802 #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size) 803 #define SCTP_BUF_TYPE(m) (m->m_type) 804 #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif) 805 #define SCTP_BUF_PREPEND M_PREPEND 806 807 #define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \ 808 MH_ALIGN(m, len); \ 809 } else if ((m->m_flags & M_EXT) == 0) { \ 810 M_ALIGN(m, len); \ 811 } 812 813 /* We make it so if you have up to 4 threads 814 * writting based on the default size of 815 * the packet log 65 k, that would be 816 * 4 16k packets before we would hit 817 * a problem. 818 */ 819 #define SCTP_PKTLOG_WRITERS_NEED_LOCK 3 820 821 822 /* 823 * routes, output, etc. 824 */ 825 826 typedef struct sctp_route sctp_route_t; 827 typedef struct sctp_rtentry sctp_rtentry_t; 828 829 static inline void sctp_userspace_rtalloc(sctp_route_t *ro) 830 { 831 if (ro->ro_rt != NULL) { 832 ro->ro_rt->rt_refcnt++; 833 return; 834 } 835 836 ro->ro_rt = (sctp_rtentry_t *) malloc(sizeof(sctp_rtentry_t)); 837 if (ro->ro_rt == NULL) 838 return; 839 840 /* initialize */ 841 memset(ro->ro_rt, 0, sizeof(sctp_rtentry_t)); 842 ro->ro_rt->rt_refcnt = 1; 843 844 /* set MTU */ 845 /* TODO set this based on the ro->ro_dst, looking up MTU with routing socket */ 846 #if 0 847 if (userspace_rawroute == -1) { 848 userspace_rawroute = socket(AF_ROUTE, SOCK_RAW, 0); 849 if (userspace_rawroute == -1) 850 return; 851 } 852 #endif 853 ro->ro_rt->rt_rmx.rmx_mtu = 1500; /* FIXME temporary solution */ 854 855 /* TODO enable the ability to obtain interface index of route for 856 * SCTP_GET_IF_INDEX_FROM_ROUTE macro. 857 */ 858 } 859 #define SCTP_RTALLOC(ro, vrf_id) sctp_userspace_rtalloc((sctp_route_t *)ro) 860 861 /* dummy rtfree needed once user_route.h is included */ 862 static inline void sctp_userspace_rtfree(sctp_rtentry_t *rt) 863 { 864 if(rt == NULL) { 865 return; 866 } 867 if(--rt->rt_refcnt > 0) { 868 return; 869 } 870 free(rt); 871 rt = NULL; 872 } 873 #define rtfree(arg1) sctp_userspace_rtfree(arg1) 874 875 876 /*************************/ 877 /* MTU */ 878 /*************************/ 879 int sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af); 880 881 #define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) sctp_userspace_get_mtu_from_ifn(ifn_index, af) 882 883 #define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0) 884 885 #define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) sctp_userspace_get_mtu_from_ifn(if_nametoindex(((struct ifaddrs *) (sctp_ifn))->ifa_name), AF_INET) 886 887 #define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \ 888 if (rt != NULL) \ 889 rt->rt_rmx.rmx_mtu = mtu; \ 890 } while(0) 891 892 /* (de-)register interface event notifications */ 893 #define SCTP_REGISTER_INTERFACE(ifhandle, af) 894 #define SCTP_DEREGISTER_INTERFACE(ifhandle, af) 895 896 897 /*************************/ 898 /* These are for logging */ 899 /*************************/ 900 /* return the base ext data pointer */ 901 #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf) 902 /* return the refcnt of the data pointer */ 903 #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt) 904 /* return any buffer related flags, this is 905 * used beyond logging for apple only. 906 */ 907 #define SCTP_BUF_GET_FLAGS(m) (m->m_flags) 908 909 /* For BSD this just accesses the M_PKTHDR length 910 * so it operates on an mbuf with hdr flag. Other 911 * O/S's may have seperate packet header and mbuf 912 * chain pointers.. thus the macro. 913 */ 914 #define SCTP_HEADER_TO_CHAIN(m) (m) 915 #define SCTP_DETACH_HEADER_FROM_CHAIN(m) 916 #define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len) 917 #define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0 918 #define SCTP_RELEASE_HEADER(m) 919 #define SCTP_RELEASE_PKT(m) sctp_m_freem(m) 920 /* UDP __Userspace__ - dummy definition */ 921 #define SCTP_ENABLE_UDP_CSUM(m) m=m 922 /* BSD definition */ 923 /* #define SCTP_ENABLE_UDP_CSUM(m) do { \ */ 924 /* m->m_pkthdr.csum_flags = CSUM_UDP; \ */ 925 /* m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \ */ 926 /* } while (0) */ 927 928 #define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID) 929 930 931 932 /* Attach the chain of data into the sendable packet. */ 933 #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \ 934 pak = m; \ 935 pak->m_pkthdr.len = packet_length; \ 936 } while(0) 937 938 /* Other m_pkthdr type things */ 939 /* FIXME need real definitions */ 940 #define SCTP_IS_IT_BROADCAST(dst, m) 0 941 /* OOTB only #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0) BSD def */ 942 #define SCTP_IS_IT_LOOPBACK(m) 0 943 /* 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 */ 944 945 946 /* This converts any input packet header 947 * into the chain of data holders, for BSD 948 * its a NOP. 949 */ 950 951 /* get the v6 hop limit */ 952 #define SCTP_GET_HLIM(inp, ro) 128 /* As done for __Windows__ */ 953 #define IPv6_HOP_LIMIT 128 954 955 /* is the endpoint v6only? */ 956 #define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY) 957 /* is the socket non-blocking? */ 958 #define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO) 959 #define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO) 960 #define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO) 961 /* get the socket type */ 962 #define SCTP_SO_TYPE(so) ((so)->so_type) 963 964 /* reserve sb space for a socket */ 965 #define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv) 966 967 /* wakeup a socket */ 968 #define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo, so) 969 /* clear the socket buffer state */ 970 #define SCTP_SB_CLEAR(sb) \ 971 (sb).sb_cc = 0; \ 972 (sb).sb_mb = NULL; \ 973 (sb).sb_mbcnt = 0; 974 975 #define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat 976 #define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat 977 978 /* Future zero copy wakeup/send function */ 979 #define SCTP_ZERO_COPY_EVENT(inp, so) 980 /* This is re-pulse ourselves for sendbuf */ 981 #define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so) 982 983 984 /* 985 * SCTP AUTH 986 */ 987 /* USE_SCTP_SHA1 is defined if you need sctp_sha1.[ch]. SHA1_* functions are defined 988 * there. On Linux, they are also defined in libcrypto.a once you install 989 * the libssl-dev package (on Ubuntu, at least). 990 */ 991 /* #define USE_SCTP_SHA1 */ 992 993 /* #define HAVE_SHA2 sha2.h exists on Linux? */ 994 995 996 #define SCTP_READ_RANDOM(buf, len) read_random(buf, len) 997 998 999 #include <netinet/sctp_sha1.h> 1000 1001 1002 #if defined(HAVE_SHA2) 1003 #include <crypto/sha2/sha2.h> 1004 #endif 1005 #if 0 1006 /* going to have to port so generic across OS's... */ 1007 #if 1 /* openssl header files on FreeBSD 6.3 on Emulab and libssl-dev for Ubuntu */ 1008 #include <openssl/md5.h> 1009 #include <openssl/sha.h> 1010 /* libssl-dev calls this SHA_CTX, but it's refered to as SHA1_CTX within the 1011 * SCTP stack code so here we typedef (or macro?) to equate the two. 1012 */ 1013 typedef SHA_CTX SHA1_CTX; 1014 1015 #else /* only _KERNEL? */ 1016 1017 #include <sys/md5.h> 1018 /* map standard crypto API names */ 1019 #define MD5_Init MD5Init 1020 #define MD5_Update MD5Update 1021 #define MD5_Final MD5Final 1022 #endif 1023 #endif 1024 1025 1026 /* start OOTB only stuff */ 1027 1028 1029 /* TODO IFT_LOOP is in net/if_types.h on Linux */ 1030 #define IFT_LOOP 0x18 1031 1032 /* sctp_pcb.h */ 1033 /* typedef int SHA1_CTX; */ 1034 /* typedef int MD5_CTX; */ 1035 #ifdef HAVE_SHA2 1036 typedef int SHA256_CTX; 1037 typedef int SHA384_CTX; 1038 typedef int SHA512_CTX; 1039 #endif 1040 1041 #if defined(__Userspace_os_Windows) 1042 #define SHUT_RD 1 1043 #define SHUT_WR 2 1044 #define SHUT_RDWR 3 1045 #endif 1046 #define PRU_FLUSH_RD SHUT_RD 1047 #define PRU_FLUSH_WR SHUT_WR 1048 #define PRU_FLUSH_RDWR SHUT_RDWR 1049 1050 /* netinet/ip_var.h defintions are behind an if defined for _KERNEL on FreeBSD */ 1051 #define IP_RAWOUTPUT 0x2 1052 1053 1054 /* end OOTB only stuff */ 1055 1056 #define AF_CONN 123 1057 struct sockaddr_conn { 1058 #ifdef HAVE_SCONN_LEN 1059 uint8_t sconn_len; 1060 #endif 1061 uint8_t sconn_family; 1062 uint16_t sconn_port; 1063 void *sconn_addr; 1064 }; 1065 1066 /* 1067 * IP output routines 1068 */ 1069 1070 /* Defining SCTP_IP_ID macro. 1071 In netinet/ip_output.c, we have u_short ip_id; 1072 In netinet/ip_var.h, we have extern u_short ip_id; (enclosed within _KERNEL_) 1073 See static __inline uint16_t ip_newid(void) in netinet/ip_var.h 1074 */ 1075 #define SCTP_IP_ID(inp) (ip_id) 1076 1077 /* need sctphdr to get port in SCTP_IP_OUTPUT. sctphdr defined in sctp.h */ 1078 #include <netinet/sctp.h> 1079 extern void sctp_userspace_ip_output(int *result, struct mbuf *o_pak, 1080 sctp_route_t *ro, void *stcb, 1081 uint32_t vrf_id); 1082 1083 #define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) sctp_userspace_ip_output(&result, o_pak, ro, stcb, vrf_id); 1084 1085 #if defined(INET6) 1086 extern void sctp_userspace_ip6_output(int *result, struct mbuf *o_pak, 1087 struct route_in6 *ro, void *stcb, 1088 uint32_t vrf_id); 1089 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) sctp_userspace_ip6_output(&result, o_pak, ro, stcb, vrf_id); 1090 #endif 1091 1092 1093 1094 #if 0 1095 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \ 1096 { \ 1097 if (stcb && stcb->sctp_ep) \ 1098 result = ip6_output(o_pak, \ 1099 ((struct in6pcb *)(stcb->sctp_ep))->in6p_outputopts, \ 1100 (ro), 0, 0, ifp, NULL); \ 1101 else \ 1102 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \ 1103 } 1104 #endif 1105 1106 struct mbuf * 1107 sctp_get_mbuf_for_msg(unsigned int space_needed, int want_header, int how, int allonebuf, int type); 1108 1109 1110 /* with the current included files, this is defined in Linux but 1111 * in FreeBSD, it is behind a _KERNEL in sys/socket.h ... 1112 */ 1113 #if defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) 1114 /* stolen from /usr/include/sys/socket.h */ 1115 #define CMSG_ALIGN(n) _ALIGN(n) 1116 #elif defined(__Userspace_os_Darwin) 1117 #if !defined(__DARWIN_ALIGNBYTES) 1118 #define __DARWIN_ALIGNBYTES (sizeof(__darwin_size_t) - 1) 1119 #endif 1120 1121 #if !defined(__DARWIN_ALIGN) 1122 #define __DARWIN_ALIGN(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES) 1123 #endif 1124 1125 #if !defined(__DARWIN_ALIGNBYTES32) 1126 #define __DARWIN_ALIGNBYTES32 (sizeof(__uint32_t) - 1) 1127 #endif 1128 1129 #if !defined(__DARWIN_ALIGN32) 1130 #define __DARWIN_ALIGN32(p) ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES32) &~ __DARWIN_ALIGNBYTES32) 1131 #endif 1132 #define CMSG_ALIGN(n) __DARWIN_ALIGN32(n) 1133 #endif 1134 #define I_AM_HERE \ 1135 do { \ 1136 SCTP_PRINTF("%s:%d at %s\n", __FILE__, __LINE__ , __FUNCTION__); \ 1137 } while (0) 1138 1139 #ifndef timevalsub 1140 #define timevalsub(tp1, tp2) \ 1141 do { \ 1142 (tp1)->tv_sec -= (tp2)->tv_sec; \ 1143 (tp1)->tv_usec -= (tp2)->tv_usec; \ 1144 if ((tp1)->tv_usec < 0) { \ 1145 (tp1)->tv_sec--; \ 1146 (tp1)->tv_usec += 1000000; \ 1147 } \ 1148 } while (0) 1149 #endif 1150 1151 #if defined(__Userspace_os_Linux) 1152 #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \ 1153 for ((var) = ((head)->tqh_first); \ 1154 (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \ 1155 (var) = (tvar)) 1156 1157 #define LIST_FOREACH_SAFE(var, head, field, tvar) \ 1158 for ((var) = ((head)->lh_first); \ 1159 (var) && ((tvar) = LIST_NEXT((var), field), 1); \ 1160 (var) = (tvar)) 1161 #endif 1162 #endif 1163
