1//===-- sanitizer_common_syscalls.inc ---------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// Common syscalls handlers for tools like AddressSanitizer, 11// ThreadSanitizer, MemorySanitizer, etc. 12// 13// This file should be included into the tool's interceptor file, 14// which has to define it's own macros: 15// COMMON_SYSCALL_PRE_READ_RANGE 16// Called in prehook for regions that will be read by the kernel and 17// must be initialized. 18// COMMON_SYSCALL_PRE_WRITE_RANGE 19// Called in prehook for regions that will be written to by the kernel 20// and must be addressable. The actual write range may be smaller than 21// reported in the prehook. See POST_WRITE_RANGE. 22// COMMON_SYSCALL_POST_READ_RANGE 23// Called in posthook for regions that were read by the kernel. Does 24// not make much sense. 25// COMMON_SYSCALL_POST_WRITE_RANGE 26// Called in posthook for regions that were written to by the kernel 27// and are now initialized. 28// COMMON_SYSCALL_ACQUIRE(addr) 29// Acquire memory visibility from addr. 30// COMMON_SYSCALL_RELEASE(addr) 31// Release memory visibility to addr. 32// COMMON_SYSCALL_FD_CLOSE(fd) 33// Called before closing file descriptor fd. 34// COMMON_SYSCALL_FD_ACQUIRE(fd) 35// Acquire memory visibility from fd. 36// COMMON_SYSCALL_FD_RELEASE(fd) 37// Release memory visibility to fd. 38// COMMON_SYSCALL_PRE_FORK() 39// Called before fork syscall. 40// COMMON_SYSCALL_POST_FORK(long res) 41// Called after fork syscall. 42//===----------------------------------------------------------------------===// 43 44#include "sanitizer_platform.h" 45#if SANITIZER_LINUX 46 47#include "sanitizer_libc.h" 48 49#define PRE_SYSCALL(name) \ 50 SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_impl_##name 51#define PRE_READ(p, s) COMMON_SYSCALL_PRE_READ_RANGE(p, s) 52#define PRE_WRITE(p, s) COMMON_SYSCALL_PRE_WRITE_RANGE(p, s) 53 54#define POST_SYSCALL(name) \ 55 SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_impl_##name 56#define POST_READ(p, s) COMMON_SYSCALL_POST_READ_RANGE(p, s) 57#define POST_WRITE(p, s) COMMON_SYSCALL_POST_WRITE_RANGE(p, s) 58 59#ifndef COMMON_SYSCALL_ACQUIRE 60# define COMMON_SYSCALL_ACQUIRE(addr) ((void)(addr)) 61#endif 62 63#ifndef COMMON_SYSCALL_RELEASE 64# define COMMON_SYSCALL_RELEASE(addr) ((void)(addr)) 65#endif 66 67#ifndef COMMON_SYSCALL_FD_CLOSE 68# define COMMON_SYSCALL_FD_CLOSE(fd) ((void)(fd)) 69#endif 70 71#ifndef COMMON_SYSCALL_FD_ACQUIRE 72# define COMMON_SYSCALL_FD_ACQUIRE(fd) ((void)(fd)) 73#endif 74 75#ifndef COMMON_SYSCALL_FD_RELEASE 76# define COMMON_SYSCALL_FD_RELEASE(fd) ((void)(fd)) 77#endif 78 79#ifndef COMMON_SYSCALL_PRE_FORK 80# define COMMON_SYSCALL_PRE_FORK() {} 81#endif 82 83#ifndef COMMON_SYSCALL_POST_FORK 84# define COMMON_SYSCALL_POST_FORK(res) {} 85#endif 86 87// FIXME: do some kind of PRE_READ for all syscall arguments (int(s) and such). 88 89extern "C" { 90struct sanitizer_kernel_iovec { 91 void *iov_base; 92 unsigned long iov_len; 93}; 94 95struct sanitizer_kernel_msghdr { 96 void *msg_name; 97 int msg_namelen; 98 struct sanitizer_kernel_iovec *msg_iov; 99 unsigned long msg_iovlen; 100 void *msg_control; 101 unsigned long msg_controllen; 102 unsigned msg_flags; 103}; 104 105struct sanitizer_kernel_mmsghdr { 106 struct sanitizer_kernel_msghdr msg_hdr; 107 unsigned msg_len; 108}; 109 110struct sanitizer_kernel_timespec { 111 long tv_sec; 112 long tv_nsec; 113}; 114 115struct sanitizer_kernel_timeval { 116 long tv_sec; 117 long tv_usec; 118}; 119 120struct sanitizer_kernel_rusage { 121 struct sanitizer_kernel_timeval ru_timeval[2]; 122 long ru_long[14]; 123}; 124 125struct sanitizer_kernel_sockaddr { 126 unsigned short sa_family; 127 char sa_data[14]; 128}; 129 130// Real sigset size is always passed as a syscall argument. 131// Declare it "void" to catch sizeof(kernel_sigset_t). 132typedef void kernel_sigset_t; 133 134static void kernel_write_iovec(const __sanitizer_iovec *iovec, 135 SIZE_T iovlen, SIZE_T maxlen) { 136 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { 137 SSIZE_T sz = Min(iovec[i].iov_len, maxlen); 138 POST_WRITE(iovec[i].iov_base, sz); 139 maxlen -= sz; 140 } 141} 142 143// This functions uses POST_READ, because it needs to run after syscall to know 144// the real read range. 145static void kernel_read_iovec(const __sanitizer_iovec *iovec, 146 SIZE_T iovlen, SIZE_T maxlen) { 147 POST_READ(iovec, sizeof(*iovec) * iovlen); 148 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { 149 SSIZE_T sz = Min(iovec[i].iov_len, maxlen); 150 POST_READ(iovec[i].iov_base, sz); 151 maxlen -= sz; 152 } 153} 154 155PRE_SYSCALL(recvmsg)(long sockfd, sanitizer_kernel_msghdr *msg, long flags) { 156 PRE_READ(msg, sizeof(*msg)); 157} 158 159POST_SYSCALL(recvmsg)(long res, long sockfd, sanitizer_kernel_msghdr *msg, 160 long flags) { 161 if (res >= 0) { 162 if (msg) { 163 for (unsigned long i = 0; i < msg->msg_iovlen; ++i) { 164 POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len); 165 } 166 POST_WRITE(msg->msg_control, msg->msg_controllen); 167 } 168 } 169} 170 171PRE_SYSCALL(recvmmsg)(long fd, sanitizer_kernel_mmsghdr *msg, long vlen, 172 long flags, void *timeout) { 173 PRE_READ(msg, vlen * sizeof(*msg)); 174} 175 176POST_SYSCALL(recvmmsg)(long res, long fd, sanitizer_kernel_mmsghdr *msg, 177 long vlen, long flags, void *timeout) { 178 if (res >= 0) { 179 if (msg) { 180 for (unsigned long i = 0; i < msg->msg_hdr.msg_iovlen; ++i) { 181 POST_WRITE(msg->msg_hdr.msg_iov[i].iov_base, 182 msg->msg_hdr.msg_iov[i].iov_len); 183 } 184 POST_WRITE(msg->msg_hdr.msg_control, msg->msg_hdr.msg_controllen); 185 POST_WRITE(&msg->msg_len, sizeof(msg->msg_len)); 186 } 187 if (timeout) POST_WRITE(timeout, struct_timespec_sz); 188 } 189} 190 191PRE_SYSCALL(read)(long fd, void *buf, uptr count) { 192 if (buf) { 193 PRE_WRITE(buf, count); 194 } 195} 196 197POST_SYSCALL(read)(long res, long fd, void *buf, uptr count) { 198 if (res > 0 && buf) { 199 POST_WRITE(buf, res); 200 } 201} 202 203PRE_SYSCALL(time)(void *tloc) {} 204 205POST_SYSCALL(time)(long res, void *tloc) { 206 if (res >= 0) { 207 if (tloc) POST_WRITE(tloc, sizeof(long)); 208 } 209} 210 211PRE_SYSCALL(stime)(void *tptr) {} 212 213POST_SYSCALL(stime)(long res, void *tptr) { 214 if (res >= 0) { 215 if (tptr) POST_WRITE(tptr, sizeof(long)); 216 } 217} 218 219PRE_SYSCALL(gettimeofday)(void *tv, void *tz) {} 220 221POST_SYSCALL(gettimeofday)(long res, void *tv, void *tz) { 222 if (res >= 0) { 223 if (tv) POST_WRITE(tv, timeval_sz); 224 if (tz) POST_WRITE(tz, struct_timezone_sz); 225 } 226} 227 228PRE_SYSCALL(settimeofday)(void *tv, void *tz) {} 229 230POST_SYSCALL(settimeofday)(long res, void *tv, void *tz) { 231 if (res >= 0) { 232 if (tv) POST_WRITE(tv, timeval_sz); 233 if (tz) POST_WRITE(tz, struct_timezone_sz); 234 } 235} 236 237#if !SANITIZER_ANDROID 238PRE_SYSCALL(adjtimex)(void *txc_p) {} 239 240POST_SYSCALL(adjtimex)(long res, void *txc_p) { 241 if (res >= 0) { 242 if (txc_p) POST_WRITE(txc_p, struct_timex_sz); 243 } 244} 245#endif 246 247PRE_SYSCALL(times)(void *tbuf) {} 248 249POST_SYSCALL(times)(long res, void *tbuf) { 250 if (res >= 0) { 251 if (tbuf) POST_WRITE(tbuf, struct_tms_sz); 252 } 253} 254 255PRE_SYSCALL(gettid)() {} 256 257POST_SYSCALL(gettid)(long res) {} 258 259PRE_SYSCALL(nanosleep)(void *rqtp, void *rmtp) {} 260 261POST_SYSCALL(nanosleep)(long res, void *rqtp, void *rmtp) { 262 if (res >= 0) { 263 if (rqtp) POST_WRITE(rqtp, struct_timespec_sz); 264 if (rmtp) POST_WRITE(rmtp, struct_timespec_sz); 265 } 266} 267 268PRE_SYSCALL(alarm)(long seconds) {} 269 270POST_SYSCALL(alarm)(long res, long seconds) {} 271 272PRE_SYSCALL(getpid)() {} 273 274POST_SYSCALL(getpid)(long res) {} 275 276PRE_SYSCALL(getppid)() {} 277 278POST_SYSCALL(getppid)(long res) {} 279 280PRE_SYSCALL(getuid)() {} 281 282POST_SYSCALL(getuid)(long res) {} 283 284PRE_SYSCALL(geteuid)() {} 285 286POST_SYSCALL(geteuid)(long res) {} 287 288PRE_SYSCALL(getgid)() {} 289 290POST_SYSCALL(getgid)(long res) {} 291 292PRE_SYSCALL(getegid)() {} 293 294POST_SYSCALL(getegid)(long res) {} 295 296PRE_SYSCALL(getresuid)(void *ruid, void *euid, void *suid) {} 297 298POST_SYSCALL(getresuid)(long res, void *ruid, void *euid, void *suid) { 299 if (res >= 0) { 300 if (ruid) POST_WRITE(ruid, sizeof(unsigned)); 301 if (euid) POST_WRITE(euid, sizeof(unsigned)); 302 if (suid) POST_WRITE(suid, sizeof(unsigned)); 303 } 304} 305 306PRE_SYSCALL(getresgid)(void *rgid, void *egid, void *sgid) {} 307 308POST_SYSCALL(getresgid)(long res, void *rgid, void *egid, void *sgid) { 309 if (res >= 0) { 310 if (rgid) POST_WRITE(rgid, sizeof(unsigned)); 311 if (egid) POST_WRITE(egid, sizeof(unsigned)); 312 if (sgid) POST_WRITE(sgid, sizeof(unsigned)); 313 } 314} 315 316PRE_SYSCALL(getpgid)(long pid) {} 317 318POST_SYSCALL(getpgid)(long res, long pid) {} 319 320PRE_SYSCALL(getpgrp)() {} 321 322POST_SYSCALL(getpgrp)(long res) {} 323 324PRE_SYSCALL(getsid)(long pid) {} 325 326POST_SYSCALL(getsid)(long res, long pid) {} 327 328PRE_SYSCALL(getgroups)(long gidsetsize, void *grouplist) {} 329 330POST_SYSCALL(getgroups)(long res, long gidsetsize, 331 __sanitizer___kernel_gid_t *grouplist) { 332 if (res >= 0) { 333 if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist)); 334 } 335} 336 337PRE_SYSCALL(setregid)(long rgid, long egid) {} 338 339POST_SYSCALL(setregid)(long res, long rgid, long egid) {} 340 341PRE_SYSCALL(setgid)(long gid) {} 342 343POST_SYSCALL(setgid)(long res, long gid) {} 344 345PRE_SYSCALL(setreuid)(long ruid, long euid) {} 346 347POST_SYSCALL(setreuid)(long res, long ruid, long euid) {} 348 349PRE_SYSCALL(setuid)(long uid) {} 350 351POST_SYSCALL(setuid)(long res, long uid) {} 352 353PRE_SYSCALL(setresuid)(long ruid, long euid, long suid) {} 354 355POST_SYSCALL(setresuid)(long res, long ruid, long euid, long suid) {} 356 357PRE_SYSCALL(setresgid)(long rgid, long egid, long sgid) {} 358 359POST_SYSCALL(setresgid)(long res, long rgid, long egid, long sgid) {} 360 361PRE_SYSCALL(setfsuid)(long uid) {} 362 363POST_SYSCALL(setfsuid)(long res, long uid) {} 364 365PRE_SYSCALL(setfsgid)(long gid) {} 366 367POST_SYSCALL(setfsgid)(long res, long gid) {} 368 369PRE_SYSCALL(setpgid)(long pid, long pgid) {} 370 371POST_SYSCALL(setpgid)(long res, long pid, long pgid) {} 372 373PRE_SYSCALL(setsid)() {} 374 375POST_SYSCALL(setsid)(long res) {} 376 377PRE_SYSCALL(setgroups)(long gidsetsize, __sanitizer___kernel_gid_t *grouplist) { 378 if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist)); 379} 380 381POST_SYSCALL(setgroups)(long res, long gidsetsize, 382 __sanitizer___kernel_gid_t *grouplist) {} 383 384PRE_SYSCALL(acct)(const void *name) { 385 if (name) 386 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 387} 388 389POST_SYSCALL(acct)(long res, const void *name) {} 390 391PRE_SYSCALL(capget)(void *header, void *dataptr) { 392 if (header) PRE_READ(header, __user_cap_header_struct_sz); 393} 394 395POST_SYSCALL(capget)(long res, void *header, void *dataptr) { 396 if (res >= 0) 397 if (dataptr) POST_WRITE(dataptr, __user_cap_data_struct_sz); 398} 399 400PRE_SYSCALL(capset)(void *header, const void *data) { 401 if (header) PRE_READ(header, __user_cap_header_struct_sz); 402 if (data) PRE_READ(data, __user_cap_data_struct_sz); 403} 404 405POST_SYSCALL(capset)(long res, void *header, const void *data) {} 406 407PRE_SYSCALL(personality)(long personality) {} 408 409POST_SYSCALL(personality)(long res, long personality) {} 410 411PRE_SYSCALL(sigpending)(void *set) {} 412 413POST_SYSCALL(sigpending)(long res, void *set) { 414 if (res >= 0) { 415 if (set) POST_WRITE(set, old_sigset_t_sz); 416 } 417} 418 419PRE_SYSCALL(sigprocmask)(long how, void *set, void *oset) {} 420 421POST_SYSCALL(sigprocmask)(long res, long how, void *set, void *oset) { 422 if (res >= 0) { 423 if (set) POST_WRITE(set, old_sigset_t_sz); 424 if (oset) POST_WRITE(oset, old_sigset_t_sz); 425 } 426} 427 428PRE_SYSCALL(getitimer)(long which, void *value) {} 429 430POST_SYSCALL(getitimer)(long res, long which, void *value) { 431 if (res >= 0) { 432 if (value) POST_WRITE(value, struct_itimerval_sz); 433 } 434} 435 436PRE_SYSCALL(setitimer)(long which, void *value, void *ovalue) {} 437 438POST_SYSCALL(setitimer)(long res, long which, void *value, void *ovalue) { 439 if (res >= 0) { 440 if (value) POST_WRITE(value, struct_itimerval_sz); 441 if (ovalue) POST_WRITE(ovalue, struct_itimerval_sz); 442 } 443} 444 445PRE_SYSCALL(timer_create)(long which_clock, void *timer_event_spec, 446 void *created_timer_id) {} 447 448POST_SYSCALL(timer_create)(long res, long which_clock, void *timer_event_spec, 449 void *created_timer_id) { 450 if (res >= 0) { 451 if (timer_event_spec) POST_WRITE(timer_event_spec, struct_sigevent_sz); 452 if (created_timer_id) POST_WRITE(created_timer_id, sizeof(long)); 453 } 454} 455 456PRE_SYSCALL(timer_gettime)(long timer_id, void *setting) {} 457 458POST_SYSCALL(timer_gettime)(long res, long timer_id, void *setting) { 459 if (res >= 0) { 460 if (setting) POST_WRITE(setting, struct_itimerspec_sz); 461 } 462} 463 464PRE_SYSCALL(timer_getoverrun)(long timer_id) {} 465 466POST_SYSCALL(timer_getoverrun)(long res, long timer_id) {} 467 468PRE_SYSCALL(timer_settime)(long timer_id, long flags, const void *new_setting, 469 void *old_setting) { 470 if (new_setting) PRE_READ(new_setting, struct_itimerspec_sz); 471} 472 473POST_SYSCALL(timer_settime)(long res, long timer_id, long flags, 474 const void *new_setting, void *old_setting) { 475 if (res >= 0) { 476 if (old_setting) POST_WRITE(old_setting, struct_itimerspec_sz); 477 } 478} 479 480PRE_SYSCALL(timer_delete)(long timer_id) {} 481 482POST_SYSCALL(timer_delete)(long res, long timer_id) {} 483 484PRE_SYSCALL(clock_settime)(long which_clock, const void *tp) { 485 if (tp) PRE_READ(tp, struct_timespec_sz); 486} 487 488POST_SYSCALL(clock_settime)(long res, long which_clock, const void *tp) {} 489 490PRE_SYSCALL(clock_gettime)(long which_clock, void *tp) {} 491 492POST_SYSCALL(clock_gettime)(long res, long which_clock, void *tp) { 493 if (res >= 0) { 494 if (tp) POST_WRITE(tp, struct_timespec_sz); 495 } 496} 497 498#if !SANITIZER_ANDROID 499PRE_SYSCALL(clock_adjtime)(long which_clock, void *tx) {} 500 501POST_SYSCALL(clock_adjtime)(long res, long which_clock, void *tx) { 502 if (res >= 0) { 503 if (tx) POST_WRITE(tx, struct_timex_sz); 504 } 505} 506#endif 507 508PRE_SYSCALL(clock_getres)(long which_clock, void *tp) {} 509 510POST_SYSCALL(clock_getres)(long res, long which_clock, void *tp) { 511 if (res >= 0) { 512 if (tp) POST_WRITE(tp, struct_timespec_sz); 513 } 514} 515 516PRE_SYSCALL(clock_nanosleep)(long which_clock, long flags, const void *rqtp, 517 void *rmtp) { 518 if (rqtp) PRE_READ(rqtp, struct_timespec_sz); 519} 520 521POST_SYSCALL(clock_nanosleep)(long res, long which_clock, long flags, 522 const void *rqtp, void *rmtp) { 523 if (res >= 0) { 524 if (rmtp) POST_WRITE(rmtp, struct_timespec_sz); 525 } 526} 527 528PRE_SYSCALL(nice)(long increment) {} 529 530POST_SYSCALL(nice)(long res, long increment) {} 531 532PRE_SYSCALL(sched_setscheduler)(long pid, long policy, void *param) {} 533 534POST_SYSCALL(sched_setscheduler)(long res, long pid, long policy, void *param) { 535 if (res >= 0) { 536 if (param) POST_WRITE(param, struct_sched_param_sz); 537 } 538} 539 540PRE_SYSCALL(sched_setparam)(long pid, void *param) { 541 if (param) PRE_READ(param, struct_sched_param_sz); 542} 543 544POST_SYSCALL(sched_setparam)(long res, long pid, void *param) {} 545 546PRE_SYSCALL(sched_getscheduler)(long pid) {} 547 548POST_SYSCALL(sched_getscheduler)(long res, long pid) {} 549 550PRE_SYSCALL(sched_getparam)(long pid, void *param) {} 551 552POST_SYSCALL(sched_getparam)(long res, long pid, void *param) { 553 if (res >= 0) { 554 if (param) POST_WRITE(param, struct_sched_param_sz); 555 } 556} 557 558PRE_SYSCALL(sched_setaffinity)(long pid, long len, void *user_mask_ptr) { 559 if (user_mask_ptr) PRE_READ(user_mask_ptr, len); 560} 561 562POST_SYSCALL(sched_setaffinity)(long res, long pid, long len, 563 void *user_mask_ptr) {} 564 565PRE_SYSCALL(sched_getaffinity)(long pid, long len, void *user_mask_ptr) {} 566 567POST_SYSCALL(sched_getaffinity)(long res, long pid, long len, 568 void *user_mask_ptr) { 569 if (res >= 0) { 570 if (user_mask_ptr) POST_WRITE(user_mask_ptr, len); 571 } 572} 573 574PRE_SYSCALL(sched_yield)() {} 575 576POST_SYSCALL(sched_yield)(long res) {} 577 578PRE_SYSCALL(sched_get_priority_max)(long policy) {} 579 580POST_SYSCALL(sched_get_priority_max)(long res, long policy) {} 581 582PRE_SYSCALL(sched_get_priority_min)(long policy) {} 583 584POST_SYSCALL(sched_get_priority_min)(long res, long policy) {} 585 586PRE_SYSCALL(sched_rr_get_interval)(long pid, void *interval) {} 587 588POST_SYSCALL(sched_rr_get_interval)(long res, long pid, void *interval) { 589 if (res >= 0) { 590 if (interval) POST_WRITE(interval, struct_timespec_sz); 591 } 592} 593 594PRE_SYSCALL(setpriority)(long which, long who, long niceval) {} 595 596POST_SYSCALL(setpriority)(long res, long which, long who, long niceval) {} 597 598PRE_SYSCALL(getpriority)(long which, long who) {} 599 600POST_SYSCALL(getpriority)(long res, long which, long who) {} 601 602PRE_SYSCALL(shutdown)(long arg0, long arg1) {} 603 604POST_SYSCALL(shutdown)(long res, long arg0, long arg1) {} 605 606PRE_SYSCALL(reboot)(long magic1, long magic2, long cmd, void *arg) {} 607 608POST_SYSCALL(reboot)(long res, long magic1, long magic2, long cmd, void *arg) {} 609 610PRE_SYSCALL(restart_syscall)() {} 611 612POST_SYSCALL(restart_syscall)(long res) {} 613 614PRE_SYSCALL(kexec_load)(long entry, long nr_segments, void *segments, 615 long flags) {} 616 617POST_SYSCALL(kexec_load)(long res, long entry, long nr_segments, void *segments, 618 long flags) { 619 if (res >= 0) { 620 if (segments) POST_WRITE(segments, struct_kexec_segment_sz); 621 } 622} 623 624PRE_SYSCALL(exit)(long error_code) {} 625 626POST_SYSCALL(exit)(long res, long error_code) {} 627 628PRE_SYSCALL(exit_group)(long error_code) {} 629 630POST_SYSCALL(exit_group)(long res, long error_code) {} 631 632PRE_SYSCALL(wait4)(long pid, void *stat_addr, long options, void *ru) {} 633 634POST_SYSCALL(wait4)(long res, long pid, void *stat_addr, long options, 635 void *ru) { 636 if (res >= 0) { 637 if (stat_addr) POST_WRITE(stat_addr, sizeof(int)); 638 if (ru) POST_WRITE(ru, struct_rusage_sz); 639 } 640} 641 642PRE_SYSCALL(waitid)(long which, long pid, void *infop, long options, void *ru) { 643} 644 645POST_SYSCALL(waitid)(long res, long which, long pid, void *infop, long options, 646 void *ru) { 647 if (res >= 0) { 648 if (infop) POST_WRITE(infop, siginfo_t_sz); 649 if (ru) POST_WRITE(ru, struct_rusage_sz); 650 } 651} 652 653PRE_SYSCALL(waitpid)(long pid, void *stat_addr, long options) {} 654 655POST_SYSCALL(waitpid)(long res, long pid, void *stat_addr, long options) { 656 if (res >= 0) { 657 if (stat_addr) POST_WRITE(stat_addr, sizeof(int)); 658 } 659} 660 661PRE_SYSCALL(set_tid_address)(void *tidptr) {} 662 663POST_SYSCALL(set_tid_address)(long res, void *tidptr) { 664 if (res >= 0) { 665 if (tidptr) POST_WRITE(tidptr, sizeof(int)); 666 } 667} 668 669PRE_SYSCALL(init_module)(void *umod, long len, const void *uargs) { 670 if (uargs) 671 PRE_READ(uargs, __sanitizer::internal_strlen((const char *)uargs) + 1); 672} 673 674POST_SYSCALL(init_module)(long res, void *umod, long len, const void *uargs) {} 675 676PRE_SYSCALL(delete_module)(const void *name_user, long flags) { 677 if (name_user) 678 PRE_READ(name_user, 679 __sanitizer::internal_strlen((const char *)name_user) + 1); 680} 681 682POST_SYSCALL(delete_module)(long res, const void *name_user, long flags) {} 683 684PRE_SYSCALL(rt_sigprocmask)(long how, void *set, void *oset, long sigsetsize) {} 685 686POST_SYSCALL(rt_sigprocmask)(long res, long how, kernel_sigset_t *set, 687 kernel_sigset_t *oset, long sigsetsize) { 688 if (res >= 0) { 689 if (set) POST_WRITE(set, sigsetsize); 690 if (oset) POST_WRITE(oset, sigsetsize); 691 } 692} 693 694PRE_SYSCALL(rt_sigpending)(void *set, long sigsetsize) {} 695 696POST_SYSCALL(rt_sigpending)(long res, kernel_sigset_t *set, long sigsetsize) { 697 if (res >= 0) { 698 if (set) POST_WRITE(set, sigsetsize); 699 } 700} 701 702PRE_SYSCALL(rt_sigtimedwait)(const kernel_sigset_t *uthese, void *uinfo, 703 const void *uts, long sigsetsize) { 704 if (uthese) PRE_READ(uthese, sigsetsize); 705 if (uts) PRE_READ(uts, struct_timespec_sz); 706} 707 708POST_SYSCALL(rt_sigtimedwait)(long res, const void *uthese, void *uinfo, 709 const void *uts, long sigsetsize) { 710 if (res >= 0) { 711 if (uinfo) POST_WRITE(uinfo, siginfo_t_sz); 712 } 713} 714 715PRE_SYSCALL(rt_tgsigqueueinfo)(long tgid, long pid, long sig, void *uinfo) {} 716 717POST_SYSCALL(rt_tgsigqueueinfo)(long res, long tgid, long pid, long sig, 718 void *uinfo) { 719 if (res >= 0) { 720 if (uinfo) POST_WRITE(uinfo, siginfo_t_sz); 721 } 722} 723 724PRE_SYSCALL(kill)(long pid, long sig) {} 725 726POST_SYSCALL(kill)(long res, long pid, long sig) {} 727 728PRE_SYSCALL(tgkill)(long tgid, long pid, long sig) {} 729 730POST_SYSCALL(tgkill)(long res, long tgid, long pid, long sig) {} 731 732PRE_SYSCALL(tkill)(long pid, long sig) {} 733 734POST_SYSCALL(tkill)(long res, long pid, long sig) {} 735 736PRE_SYSCALL(rt_sigqueueinfo)(long pid, long sig, void *uinfo) {} 737 738POST_SYSCALL(rt_sigqueueinfo)(long res, long pid, long sig, void *uinfo) { 739 if (res >= 0) { 740 if (uinfo) POST_WRITE(uinfo, siginfo_t_sz); 741 } 742} 743 744PRE_SYSCALL(sgetmask)() {} 745 746POST_SYSCALL(sgetmask)(long res) {} 747 748PRE_SYSCALL(ssetmask)(long newmask) {} 749 750POST_SYSCALL(ssetmask)(long res, long newmask) {} 751 752PRE_SYSCALL(signal)(long sig, long handler) {} 753 754POST_SYSCALL(signal)(long res, long sig, long handler) {} 755 756PRE_SYSCALL(pause)() {} 757 758POST_SYSCALL(pause)(long res) {} 759 760PRE_SYSCALL(sync)() {} 761 762POST_SYSCALL(sync)(long res) {} 763 764PRE_SYSCALL(fsync)(long fd) {} 765 766POST_SYSCALL(fsync)(long res, long fd) {} 767 768PRE_SYSCALL(fdatasync)(long fd) {} 769 770POST_SYSCALL(fdatasync)(long res, long fd) {} 771 772PRE_SYSCALL(bdflush)(long func, long data) {} 773 774POST_SYSCALL(bdflush)(long res, long func, long data) {} 775 776PRE_SYSCALL(mount)(void *dev_name, void *dir_name, void *type, long flags, 777 void *data) {} 778 779POST_SYSCALL(mount)(long res, void *dev_name, void *dir_name, void *type, 780 long flags, void *data) { 781 if (res >= 0) { 782 if (dev_name) 783 POST_WRITE(dev_name, 784 __sanitizer::internal_strlen((const char *)dev_name) + 1); 785 if (dir_name) 786 POST_WRITE(dir_name, 787 __sanitizer::internal_strlen((const char *)dir_name) + 1); 788 if (type) 789 POST_WRITE(type, __sanitizer::internal_strlen((const char *)type) + 1); 790 } 791} 792 793PRE_SYSCALL(umount)(void *name, long flags) {} 794 795POST_SYSCALL(umount)(long res, void *name, long flags) { 796 if (res >= 0) { 797 if (name) 798 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 799 } 800} 801 802PRE_SYSCALL(oldumount)(void *name) {} 803 804POST_SYSCALL(oldumount)(long res, void *name) { 805 if (res >= 0) { 806 if (name) 807 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 808 } 809} 810 811PRE_SYSCALL(truncate)(const void *path, long length) { 812 if (path) 813 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 814} 815 816POST_SYSCALL(truncate)(long res, const void *path, long length) {} 817 818PRE_SYSCALL(ftruncate)(long fd, long length) {} 819 820POST_SYSCALL(ftruncate)(long res, long fd, long length) {} 821 822PRE_SYSCALL(stat)(const void *filename, void *statbuf) { 823 if (filename) 824 PRE_READ(filename, 825 __sanitizer::internal_strlen((const char *)filename) + 1); 826} 827 828POST_SYSCALL(stat)(long res, const void *filename, void *statbuf) { 829 if (res >= 0) { 830 if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz); 831 } 832} 833 834#if !SANITIZER_ANDROID 835PRE_SYSCALL(statfs)(const void *path, void *buf) { 836 if (path) 837 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 838} 839 840POST_SYSCALL(statfs)(long res, const void *path, void *buf) { 841 if (res >= 0) { 842 if (buf) POST_WRITE(buf, struct_statfs_sz); 843 } 844} 845 846PRE_SYSCALL(statfs64)(const void *path, long sz, void *buf) { 847 if (path) 848 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 849} 850 851POST_SYSCALL(statfs64)(long res, const void *path, long sz, void *buf) { 852 if (res >= 0) { 853 if (buf) POST_WRITE(buf, struct_statfs64_sz); 854 } 855} 856 857PRE_SYSCALL(fstatfs)(long fd, void *buf) {} 858 859POST_SYSCALL(fstatfs)(long res, long fd, void *buf) { 860 if (res >= 0) { 861 if (buf) POST_WRITE(buf, struct_statfs_sz); 862 } 863} 864 865PRE_SYSCALL(fstatfs64)(long fd, long sz, void *buf) {} 866 867POST_SYSCALL(fstatfs64)(long res, long fd, long sz, void *buf) { 868 if (res >= 0) { 869 if (buf) POST_WRITE(buf, struct_statfs64_sz); 870 } 871} 872#endif // !SANITIZER_ANDROID 873 874PRE_SYSCALL(lstat)(const void *filename, void *statbuf) { 875 if (filename) 876 PRE_READ(filename, 877 __sanitizer::internal_strlen((const char *)filename) + 1); 878} 879 880POST_SYSCALL(lstat)(long res, const void *filename, void *statbuf) { 881 if (res >= 0) { 882 if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz); 883 } 884} 885 886PRE_SYSCALL(fstat)(long fd, void *statbuf) {} 887 888POST_SYSCALL(fstat)(long res, long fd, void *statbuf) { 889 if (res >= 0) { 890 if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz); 891 } 892} 893 894PRE_SYSCALL(newstat)(const void *filename, void *statbuf) { 895 if (filename) 896 PRE_READ(filename, 897 __sanitizer::internal_strlen((const char *)filename) + 1); 898} 899 900POST_SYSCALL(newstat)(long res, const void *filename, void *statbuf) { 901 if (res >= 0) { 902 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz); 903 } 904} 905 906PRE_SYSCALL(newlstat)(const void *filename, void *statbuf) { 907 if (filename) 908 PRE_READ(filename, 909 __sanitizer::internal_strlen((const char *)filename) + 1); 910} 911 912POST_SYSCALL(newlstat)(long res, const void *filename, void *statbuf) { 913 if (res >= 0) { 914 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz); 915 } 916} 917 918PRE_SYSCALL(newfstat)(long fd, void *statbuf) {} 919 920POST_SYSCALL(newfstat)(long res, long fd, void *statbuf) { 921 if (res >= 0) { 922 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz); 923 } 924} 925 926#if !SANITIZER_ANDROID 927PRE_SYSCALL(ustat)(long dev, void *ubuf) {} 928 929POST_SYSCALL(ustat)(long res, long dev, void *ubuf) { 930 if (res >= 0) { 931 if (ubuf) POST_WRITE(ubuf, struct_ustat_sz); 932 } 933} 934#endif // !SANITIZER_ANDROID 935 936PRE_SYSCALL(stat64)(const void *filename, void *statbuf) { 937 if (filename) 938 PRE_READ(filename, 939 __sanitizer::internal_strlen((const char *)filename) + 1); 940} 941 942POST_SYSCALL(stat64)(long res, const void *filename, void *statbuf) { 943 if (res >= 0) { 944 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz); 945 } 946} 947 948PRE_SYSCALL(fstat64)(long fd, void *statbuf) {} 949 950POST_SYSCALL(fstat64)(long res, long fd, void *statbuf) { 951 if (res >= 0) { 952 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz); 953 } 954} 955 956PRE_SYSCALL(lstat64)(const void *filename, void *statbuf) { 957 if (filename) 958 PRE_READ(filename, 959 __sanitizer::internal_strlen((const char *)filename) + 1); 960} 961 962POST_SYSCALL(lstat64)(long res, const void *filename, void *statbuf) { 963 if (res >= 0) { 964 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz); 965 } 966} 967 968PRE_SYSCALL(setxattr)(const void *path, const void *name, const void *value, 969 long size, long flags) { 970 if (path) 971 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 972 if (name) 973 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 974 if (value) PRE_READ(value, size); 975} 976 977POST_SYSCALL(setxattr)(long res, const void *path, const void *name, 978 const void *value, long size, long flags) {} 979 980PRE_SYSCALL(lsetxattr)(const void *path, const void *name, const void *value, 981 long size, long flags) { 982 if (path) 983 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 984 if (name) 985 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 986 if (value) PRE_READ(value, size); 987} 988 989POST_SYSCALL(lsetxattr)(long res, const void *path, const void *name, 990 const void *value, long size, long flags) {} 991 992PRE_SYSCALL(fsetxattr)(long fd, const void *name, const void *value, long size, 993 long flags) { 994 if (name) 995 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 996 if (value) PRE_READ(value, size); 997} 998 999POST_SYSCALL(fsetxattr)(long res, long fd, const void *name, const void *value, 1000 long size, long flags) {} 1001 1002PRE_SYSCALL(getxattr)(const void *path, const void *name, void *value, 1003 long size) { 1004 if (path) 1005 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1006 if (name) 1007 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1008} 1009 1010POST_SYSCALL(getxattr)(long res, const void *path, const void *name, 1011 void *value, long size) { 1012 if (size && res > 0) { 1013 if (value) POST_WRITE(value, res); 1014 } 1015} 1016 1017PRE_SYSCALL(lgetxattr)(const void *path, const void *name, void *value, 1018 long size) { 1019 if (path) 1020 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1021 if (name) 1022 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1023} 1024 1025POST_SYSCALL(lgetxattr)(long res, const void *path, const void *name, 1026 void *value, long size) { 1027 if (size && res > 0) { 1028 if (value) POST_WRITE(value, res); 1029 } 1030} 1031 1032PRE_SYSCALL(fgetxattr)(long fd, const void *name, void *value, long size) { 1033 if (name) 1034 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1035} 1036 1037POST_SYSCALL(fgetxattr)(long res, long fd, const void *name, void *value, 1038 long size) { 1039 if (size && res > 0) { 1040 if (value) POST_WRITE(value, res); 1041 } 1042} 1043 1044PRE_SYSCALL(listxattr)(const void *path, void *list, long size) { 1045 if (path) 1046 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1047} 1048 1049POST_SYSCALL(listxattr)(long res, const void *path, void *list, long size) { 1050 if (size && res > 0) { 1051 if (list) POST_WRITE(list, res); 1052 } 1053} 1054 1055PRE_SYSCALL(llistxattr)(const void *path, void *list, long size) { 1056 if (path) 1057 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1058} 1059 1060POST_SYSCALL(llistxattr)(long res, const void *path, void *list, long size) { 1061 if (size && res > 0) { 1062 if (list) POST_WRITE(list, res); 1063 } 1064} 1065 1066PRE_SYSCALL(flistxattr)(long fd, void *list, long size) {} 1067 1068POST_SYSCALL(flistxattr)(long res, long fd, void *list, long size) { 1069 if (size && res > 0) { 1070 if (list) POST_WRITE(list, res); 1071 } 1072} 1073 1074PRE_SYSCALL(removexattr)(const void *path, const void *name) { 1075 if (path) 1076 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1077 if (name) 1078 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1079} 1080 1081POST_SYSCALL(removexattr)(long res, const void *path, const void *name) {} 1082 1083PRE_SYSCALL(lremovexattr)(const void *path, const void *name) { 1084 if (path) 1085 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1086 if (name) 1087 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1088} 1089 1090POST_SYSCALL(lremovexattr)(long res, const void *path, const void *name) {} 1091 1092PRE_SYSCALL(fremovexattr)(long fd, const void *name) { 1093 if (name) 1094 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 1095} 1096 1097POST_SYSCALL(fremovexattr)(long res, long fd, const void *name) {} 1098 1099PRE_SYSCALL(brk)(long brk) {} 1100 1101POST_SYSCALL(brk)(long res, long brk) {} 1102 1103PRE_SYSCALL(mprotect)(long start, long len, long prot) {} 1104 1105POST_SYSCALL(mprotect)(long res, long start, long len, long prot) {} 1106 1107PRE_SYSCALL(mremap)(long addr, long old_len, long new_len, long flags, 1108 long new_addr) {} 1109 1110POST_SYSCALL(mremap)(long res, long addr, long old_len, long new_len, 1111 long flags, long new_addr) {} 1112 1113PRE_SYSCALL(remap_file_pages)(long start, long size, long prot, long pgoff, 1114 long flags) {} 1115 1116POST_SYSCALL(remap_file_pages)(long res, long start, long size, long prot, 1117 long pgoff, long flags) {} 1118 1119PRE_SYSCALL(msync)(long start, long len, long flags) {} 1120 1121POST_SYSCALL(msync)(long res, long start, long len, long flags) {} 1122 1123PRE_SYSCALL(munmap)(long addr, long len) {} 1124 1125POST_SYSCALL(munmap)(long res, long addr, long len) {} 1126 1127PRE_SYSCALL(mlock)(long start, long len) {} 1128 1129POST_SYSCALL(mlock)(long res, long start, long len) {} 1130 1131PRE_SYSCALL(munlock)(long start, long len) {} 1132 1133POST_SYSCALL(munlock)(long res, long start, long len) {} 1134 1135PRE_SYSCALL(mlockall)(long flags) {} 1136 1137POST_SYSCALL(mlockall)(long res, long flags) {} 1138 1139PRE_SYSCALL(munlockall)() {} 1140 1141POST_SYSCALL(munlockall)(long res) {} 1142 1143PRE_SYSCALL(madvise)(long start, long len, long behavior) {} 1144 1145POST_SYSCALL(madvise)(long res, long start, long len, long behavior) {} 1146 1147PRE_SYSCALL(mincore)(long start, long len, void *vec) {} 1148 1149POST_SYSCALL(mincore)(long res, long start, long len, void *vec) { 1150 if (res >= 0) { 1151 if (vec) { 1152 POST_WRITE(vec, (len + GetPageSizeCached() - 1) / GetPageSizeCached()); 1153 } 1154 } 1155} 1156 1157PRE_SYSCALL(pivot_root)(const void *new_root, const void *put_old) { 1158 if (new_root) 1159 PRE_READ(new_root, 1160 __sanitizer::internal_strlen((const char *)new_root) + 1); 1161 if (put_old) 1162 PRE_READ(put_old, __sanitizer::internal_strlen((const char *)put_old) + 1); 1163} 1164 1165POST_SYSCALL(pivot_root)(long res, const void *new_root, const void *put_old) {} 1166 1167PRE_SYSCALL(chroot)(const void *filename) { 1168 if (filename) 1169 PRE_READ(filename, 1170 __sanitizer::internal_strlen((const char *)filename) + 1); 1171} 1172 1173POST_SYSCALL(chroot)(long res, const void *filename) {} 1174 1175PRE_SYSCALL(mknod)(const void *filename, long mode, long dev) { 1176 if (filename) 1177 PRE_READ(filename, 1178 __sanitizer::internal_strlen((const char *)filename) + 1); 1179} 1180 1181POST_SYSCALL(mknod)(long res, const void *filename, long mode, long dev) {} 1182 1183PRE_SYSCALL(link)(const void *oldname, const void *newname) { 1184 if (oldname) 1185 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 1186 if (newname) 1187 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 1188} 1189 1190POST_SYSCALL(link)(long res, const void *oldname, const void *newname) {} 1191 1192PRE_SYSCALL(symlink)(const void *old, const void *new_) { 1193 if (old) PRE_READ(old, __sanitizer::internal_strlen((const char *)old) + 1); 1194 if (new_) 1195 PRE_READ(new_, __sanitizer::internal_strlen((const char *)new_) + 1); 1196} 1197 1198POST_SYSCALL(symlink)(long res, const void *old, const void *new_) {} 1199 1200PRE_SYSCALL(unlink)(const void *pathname) { 1201 if (pathname) 1202 PRE_READ(pathname, 1203 __sanitizer::internal_strlen((const char *)pathname) + 1); 1204} 1205 1206POST_SYSCALL(unlink)(long res, const void *pathname) {} 1207 1208PRE_SYSCALL(rename)(const void *oldname, const void *newname) { 1209 if (oldname) 1210 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 1211 if (newname) 1212 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 1213} 1214 1215POST_SYSCALL(rename)(long res, const void *oldname, const void *newname) {} 1216 1217PRE_SYSCALL(chmod)(const void *filename, long mode) { 1218 if (filename) 1219 PRE_READ(filename, 1220 __sanitizer::internal_strlen((const char *)filename) + 1); 1221} 1222 1223POST_SYSCALL(chmod)(long res, const void *filename, long mode) {} 1224 1225PRE_SYSCALL(fchmod)(long fd, long mode) {} 1226 1227POST_SYSCALL(fchmod)(long res, long fd, long mode) {} 1228 1229PRE_SYSCALL(fcntl)(long fd, long cmd, long arg) {} 1230 1231POST_SYSCALL(fcntl)(long res, long fd, long cmd, long arg) {} 1232 1233PRE_SYSCALL(fcntl64)(long fd, long cmd, long arg) {} 1234 1235POST_SYSCALL(fcntl64)(long res, long fd, long cmd, long arg) {} 1236 1237PRE_SYSCALL(pipe)(void *fildes) {} 1238 1239POST_SYSCALL(pipe)(long res, void *fildes) { 1240 if (res >= 0) { 1241 if (fildes) POST_WRITE(fildes, sizeof(int)); 1242 } 1243} 1244 1245PRE_SYSCALL(pipe2)(void *fildes, long flags) {} 1246 1247POST_SYSCALL(pipe2)(long res, void *fildes, long flags) { 1248 if (res >= 0) { 1249 if (fildes) POST_WRITE(fildes, sizeof(int)); 1250 } 1251} 1252 1253PRE_SYSCALL(dup)(long fildes) {} 1254 1255POST_SYSCALL(dup)(long res, long fildes) {} 1256 1257PRE_SYSCALL(dup2)(long oldfd, long newfd) {} 1258 1259POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {} 1260 1261PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {} 1262 1263POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {} 1264 1265PRE_SYSCALL(ioperm)(long from, long num, long on) {} 1266 1267POST_SYSCALL(ioperm)(long res, long from, long num, long on) {} 1268 1269PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {} 1270 1271POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {} 1272 1273PRE_SYSCALL(flock)(long fd, long cmd) {} 1274 1275POST_SYSCALL(flock)(long res, long fd, long cmd) {} 1276 1277PRE_SYSCALL(io_setup)(long nr_reqs, void **ctx) { 1278 if (ctx) PRE_WRITE(ctx, sizeof(*ctx)); 1279} 1280 1281POST_SYSCALL(io_setup)(long res, long nr_reqs, void **ctx) { 1282 if (res >= 0) { 1283 if (ctx) POST_WRITE(ctx, sizeof(*ctx)); 1284 // (*ctx) is actually a pointer to a kernel mapped page, and there are 1285 // people out there who are crazy enough to peek into that page's 32-byte 1286 // header. 1287 if (*ctx) POST_WRITE(*ctx, 32); 1288 } 1289} 1290 1291PRE_SYSCALL(io_destroy)(long ctx) {} 1292 1293POST_SYSCALL(io_destroy)(long res, long ctx) {} 1294 1295PRE_SYSCALL(io_getevents)(long ctx_id, long min_nr, long nr, 1296 __sanitizer_io_event *ioevpp, void *timeout) { 1297 if (timeout) PRE_READ(timeout, struct_timespec_sz); 1298} 1299 1300POST_SYSCALL(io_getevents)(long res, long ctx_id, long min_nr, long nr, 1301 __sanitizer_io_event *ioevpp, void *timeout) { 1302 if (res >= 0) { 1303 if (ioevpp) POST_WRITE(ioevpp, res * sizeof(*ioevpp)); 1304 if (timeout) POST_WRITE(timeout, struct_timespec_sz); 1305 } 1306 for (long i = 0; i < res; i++) { 1307 // We synchronize io_submit -> io_getevents/io_cancel using the 1308 // user-provided data context. Data is not necessary a pointer, it can be 1309 // an int, 0 or whatever; acquire/release will correctly handle this. 1310 // This scheme can lead to false negatives, e.g. when all operations 1311 // synchronize on 0. But there does not seem to be a better solution 1312 // (except wrapping all operations in own context, which is unreliable). 1313 // We can not reliably extract fildes in io_getevents. 1314 COMMON_SYSCALL_ACQUIRE((void*)ioevpp[i].data); 1315 } 1316} 1317 1318PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) { 1319 for (long i = 0; i < nr; ++i) { 1320 uptr op = iocbpp[i]->aio_lio_opcode; 1321 void *data = (void*)iocbpp[i]->aio_data; 1322 void *buf = (void*)iocbpp[i]->aio_buf; 1323 uptr len = (uptr)iocbpp[i]->aio_nbytes; 1324 if (op == iocb_cmd_pwrite && buf && len) { 1325 PRE_READ(buf, len); 1326 } else if (op == iocb_cmd_pread && buf && len) { 1327 POST_WRITE(buf, len); 1328 } else if (op == iocb_cmd_pwritev) { 1329 __sanitizer_iovec *iovec = (__sanitizer_iovec*)buf; 1330 for (uptr v = 0; v < len; v++) 1331 PRE_READ(iovec[v].iov_base, iovec[v].iov_len); 1332 } else if (op == iocb_cmd_preadv) { 1333 __sanitizer_iovec *iovec = (__sanitizer_iovec*)buf; 1334 for (uptr v = 0; v < len; v++) 1335 POST_WRITE(iovec[v].iov_base, iovec[v].iov_len); 1336 } 1337 // See comment in io_getevents. 1338 COMMON_SYSCALL_RELEASE(data); 1339 } 1340} 1341 1342POST_SYSCALL(io_submit)(long res, long ctx_id, long nr, 1343 __sanitizer_iocb **iocbpp) {} 1344 1345PRE_SYSCALL(io_cancel)(long ctx_id, __sanitizer_iocb *iocb, 1346 __sanitizer_io_event *result) { 1347} 1348 1349POST_SYSCALL(io_cancel)(long res, long ctx_id, __sanitizer_iocb *iocb, 1350 __sanitizer_io_event *result) { 1351 if (res == 0) { 1352 if (result) { 1353 // See comment in io_getevents. 1354 COMMON_SYSCALL_ACQUIRE((void*)result->data); 1355 POST_WRITE(result, sizeof(*result)); 1356 } 1357 if (iocb) 1358 POST_WRITE(iocb, sizeof(*iocb)); 1359 } 1360} 1361 1362PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {} 1363 1364POST_SYSCALL(sendfile)(long res, long out_fd, long in_fd, 1365 __sanitizer___kernel_off_t *offset, long count) { 1366 if (res >= 0) { 1367 if (offset) POST_WRITE(offset, sizeof(*offset)); 1368 } 1369} 1370 1371PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {} 1372 1373POST_SYSCALL(sendfile64)(long res, long out_fd, long in_fd, 1374 __sanitizer___kernel_loff_t *offset, long count) { 1375 if (res >= 0) { 1376 if (offset) POST_WRITE(offset, sizeof(*offset)); 1377 } 1378} 1379 1380PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) { 1381 if (path) 1382 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1383} 1384 1385POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) { 1386 if (res >= 0) { 1387 if (buf) 1388 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1389 } 1390} 1391 1392PRE_SYSCALL(creat)(const void *pathname, long mode) { 1393 if (pathname) 1394 PRE_READ(pathname, 1395 __sanitizer::internal_strlen((const char *)pathname) + 1); 1396} 1397 1398POST_SYSCALL(creat)(long res, const void *pathname, long mode) {} 1399 1400PRE_SYSCALL(open)(const void *filename, long flags, long mode) { 1401 if (filename) 1402 PRE_READ(filename, 1403 __sanitizer::internal_strlen((const char *)filename) + 1); 1404} 1405 1406POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {} 1407 1408PRE_SYSCALL(close)(long fd) { 1409 COMMON_SYSCALL_FD_CLOSE((int)fd); 1410} 1411 1412POST_SYSCALL(close)(long res, long fd) {} 1413 1414PRE_SYSCALL(access)(const void *filename, long mode) { 1415 if (filename) 1416 PRE_READ(filename, 1417 __sanitizer::internal_strlen((const char *)filename) + 1); 1418} 1419 1420POST_SYSCALL(access)(long res, const void *filename, long mode) {} 1421 1422PRE_SYSCALL(vhangup)() {} 1423 1424POST_SYSCALL(vhangup)(long res) {} 1425 1426PRE_SYSCALL(chown)(const void *filename, long user, long group) { 1427 if (filename) 1428 PRE_READ(filename, 1429 __sanitizer::internal_strlen((const char *)filename) + 1); 1430} 1431 1432POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {} 1433 1434PRE_SYSCALL(lchown)(const void *filename, long user, long group) { 1435 if (filename) 1436 PRE_READ(filename, 1437 __sanitizer::internal_strlen((const char *)filename) + 1); 1438} 1439 1440POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {} 1441 1442PRE_SYSCALL(fchown)(long fd, long user, long group) {} 1443 1444POST_SYSCALL(fchown)(long res, long fd, long user, long group) {} 1445 1446#if SANITIZER_USES_UID16_SYSCALLS 1447PRE_SYSCALL(chown16)(const void *filename, long user, long group) { 1448 if (filename) 1449 PRE_READ(filename, 1450 __sanitizer::internal_strlen((const char *)filename) + 1); 1451} 1452 1453POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {} 1454 1455PRE_SYSCALL(lchown16)(const void *filename, long user, long group) { 1456 if (filename) 1457 PRE_READ(filename, 1458 __sanitizer::internal_strlen((const char *)filename) + 1); 1459} 1460 1461POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {} 1462 1463PRE_SYSCALL(fchown16)(long fd, long user, long group) {} 1464 1465POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {} 1466 1467PRE_SYSCALL(setregid16)(long rgid, long egid) {} 1468 1469POST_SYSCALL(setregid16)(long res, long rgid, long egid) {} 1470 1471PRE_SYSCALL(setgid16)(long gid) {} 1472 1473POST_SYSCALL(setgid16)(long res, long gid) {} 1474 1475PRE_SYSCALL(setreuid16)(long ruid, long euid) {} 1476 1477POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {} 1478 1479PRE_SYSCALL(setuid16)(long uid) {} 1480 1481POST_SYSCALL(setuid16)(long res, long uid) {} 1482 1483PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {} 1484 1485POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {} 1486 1487PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {} 1488 1489POST_SYSCALL(getresuid16)(long res, __sanitizer___kernel_old_uid_t *ruid, 1490 __sanitizer___kernel_old_uid_t *euid, 1491 __sanitizer___kernel_old_uid_t *suid) { 1492 if (res >= 0) { 1493 if (ruid) POST_WRITE(ruid, sizeof(*ruid)); 1494 if (euid) POST_WRITE(euid, sizeof(*euid)); 1495 if (suid) POST_WRITE(suid, sizeof(*suid)); 1496 } 1497} 1498 1499PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {} 1500 1501POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {} 1502 1503PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {} 1504 1505POST_SYSCALL(getresgid16)(long res, __sanitizer___kernel_old_gid_t *rgid, 1506 __sanitizer___kernel_old_gid_t *egid, 1507 __sanitizer___kernel_old_gid_t *sgid) { 1508 if (res >= 0) { 1509 if (rgid) POST_WRITE(rgid, sizeof(*rgid)); 1510 if (egid) POST_WRITE(egid, sizeof(*egid)); 1511 if (sgid) POST_WRITE(sgid, sizeof(*sgid)); 1512 } 1513} 1514 1515PRE_SYSCALL(setfsuid16)(long uid) {} 1516 1517POST_SYSCALL(setfsuid16)(long res, long uid) {} 1518 1519PRE_SYSCALL(setfsgid16)(long gid) {} 1520 1521POST_SYSCALL(setfsgid16)(long res, long gid) {} 1522 1523PRE_SYSCALL(getgroups16)(long gidsetsize, 1524 __sanitizer___kernel_old_gid_t *grouplist) {} 1525 1526POST_SYSCALL(getgroups16)(long res, long gidsetsize, 1527 __sanitizer___kernel_old_gid_t *grouplist) { 1528 if (res >= 0) { 1529 if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist)); 1530 } 1531} 1532 1533PRE_SYSCALL(setgroups16)(long gidsetsize, 1534 __sanitizer___kernel_old_gid_t *grouplist) { 1535 if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist)); 1536} 1537 1538POST_SYSCALL(setgroups16)(long res, long gidsetsize, 1539 __sanitizer___kernel_old_gid_t *grouplist) {} 1540 1541PRE_SYSCALL(getuid16)() {} 1542 1543POST_SYSCALL(getuid16)(long res) {} 1544 1545PRE_SYSCALL(geteuid16)() {} 1546 1547POST_SYSCALL(geteuid16)(long res) {} 1548 1549PRE_SYSCALL(getgid16)() {} 1550 1551POST_SYSCALL(getgid16)(long res) {} 1552 1553PRE_SYSCALL(getegid16)() {} 1554 1555POST_SYSCALL(getegid16)(long res) {} 1556#endif // SANITIZER_USES_UID16_SYSCALLS 1557 1558PRE_SYSCALL(utime)(void *filename, void *times) {} 1559 1560POST_SYSCALL(utime)(long res, void *filename, void *times) { 1561 if (res >= 0) { 1562 if (filename) 1563 POST_WRITE(filename, 1564 __sanitizer::internal_strlen((const char *)filename) + 1); 1565 if (times) POST_WRITE(times, struct_utimbuf_sz); 1566 } 1567} 1568 1569PRE_SYSCALL(utimes)(void *filename, void *utimes) {} 1570 1571POST_SYSCALL(utimes)(long res, void *filename, void *utimes) { 1572 if (res >= 0) { 1573 if (filename) 1574 POST_WRITE(filename, 1575 __sanitizer::internal_strlen((const char *)filename) + 1); 1576 if (utimes) POST_WRITE(utimes, timeval_sz); 1577 } 1578} 1579 1580PRE_SYSCALL(lseek)(long fd, long offset, long origin) {} 1581 1582POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {} 1583 1584PRE_SYSCALL(llseek)(long fd, long offset_high, long offset_low, void *result, 1585 long origin) {} 1586 1587POST_SYSCALL(llseek)(long res, long fd, long offset_high, long offset_low, 1588 void *result, long origin) { 1589 if (res >= 0) { 1590 if (result) POST_WRITE(result, sizeof(long long)); 1591 } 1592} 1593 1594PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {} 1595 1596POST_SYSCALL(readv)(long res, long fd, const __sanitizer_iovec *vec, 1597 long vlen) { 1598 if (res >= 0) { 1599 if (vec) kernel_write_iovec(vec, vlen, res); 1600 } 1601} 1602 1603PRE_SYSCALL(write)(long fd, const void *buf, long count) { 1604 if (buf) PRE_READ(buf, count); 1605} 1606 1607POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {} 1608 1609PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {} 1610 1611POST_SYSCALL(writev)(long res, long fd, const __sanitizer_iovec *vec, 1612 long vlen) { 1613 if (res >= 0) { 1614 if (vec) kernel_read_iovec(vec, vlen, res); 1615 } 1616} 1617 1618#ifdef _LP64 1619PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {} 1620 1621POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) { 1622 if (res >= 0) { 1623 if (buf) POST_WRITE(buf, res); 1624 } 1625} 1626 1627PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) { 1628 if (buf) PRE_READ(buf, count); 1629} 1630 1631POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count, 1632 long pos) {} 1633#else 1634PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {} 1635 1636POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos0, 1637 long pos1) { 1638 if (res >= 0) { 1639 if (buf) POST_WRITE(buf, res); 1640 } 1641} 1642 1643PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos0, 1644 long pos1) { 1645 if (buf) PRE_READ(buf, count); 1646} 1647 1648POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count, 1649 long pos0, long pos1) {} 1650#endif 1651 1652PRE_SYSCALL(preadv)(long fd, const __sanitizer_iovec *vec, long vlen, 1653 long pos_l, long pos_h) {} 1654 1655POST_SYSCALL(preadv)(long res, long fd, const __sanitizer_iovec *vec, long vlen, 1656 long pos_l, long pos_h) { 1657 if (res >= 0) { 1658 if (vec) kernel_write_iovec(vec, vlen, res); 1659 } 1660} 1661 1662PRE_SYSCALL(pwritev)(long fd, const __sanitizer_iovec *vec, long vlen, 1663 long pos_l, long pos_h) {} 1664 1665POST_SYSCALL(pwritev)(long res, long fd, const __sanitizer_iovec *vec, 1666 long vlen, long pos_l, long pos_h) { 1667 if (res >= 0) { 1668 if (vec) kernel_read_iovec(vec, vlen, res); 1669 } 1670} 1671 1672PRE_SYSCALL(getcwd)(void *buf, long size) {} 1673 1674POST_SYSCALL(getcwd)(long res, void *buf, long size) { 1675 if (res >= 0) { 1676 if (buf) 1677 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1678 } 1679} 1680 1681PRE_SYSCALL(mkdir)(const void *pathname, long mode) { 1682 if (pathname) 1683 PRE_READ(pathname, 1684 __sanitizer::internal_strlen((const char *)pathname) + 1); 1685} 1686 1687POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {} 1688 1689PRE_SYSCALL(chdir)(const void *filename) { 1690 if (filename) 1691 PRE_READ(filename, 1692 __sanitizer::internal_strlen((const char *)filename) + 1); 1693} 1694 1695POST_SYSCALL(chdir)(long res, const void *filename) {} 1696 1697PRE_SYSCALL(fchdir)(long fd) {} 1698 1699POST_SYSCALL(fchdir)(long res, long fd) {} 1700 1701PRE_SYSCALL(rmdir)(const void *pathname) { 1702 if (pathname) 1703 PRE_READ(pathname, 1704 __sanitizer::internal_strlen((const char *)pathname) + 1); 1705} 1706 1707POST_SYSCALL(rmdir)(long res, const void *pathname) {} 1708 1709PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {} 1710 1711POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) { 1712 if (res >= 0) { 1713 if (buf) 1714 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1715 } 1716} 1717 1718PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) { 1719 if (special) 1720 PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1); 1721} 1722 1723POST_SYSCALL(quotactl)(long res, long cmd, const void *special, long id, 1724 void *addr) {} 1725 1726PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {} 1727 1728POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) { 1729 if (res >= 0) { 1730 if (dirent) POST_WRITE(dirent, res); 1731 } 1732} 1733 1734PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {} 1735 1736POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) { 1737 if (res >= 0) { 1738 if (dirent) POST_WRITE(dirent, res); 1739 } 1740} 1741 1742PRE_SYSCALL(setsockopt)(long fd, long level, long optname, void *optval, 1743 long optlen) {} 1744 1745POST_SYSCALL(setsockopt)(long res, long fd, long level, long optname, 1746 void *optval, long optlen) { 1747 if (res >= 0) { 1748 if (optval) 1749 POST_WRITE(optval, 1750 __sanitizer::internal_strlen((const char *)optval) + 1); 1751 } 1752} 1753 1754PRE_SYSCALL(getsockopt)(long fd, long level, long optname, void *optval, 1755 void *optlen) {} 1756 1757POST_SYSCALL(getsockopt)(long res, long fd, long level, long optname, 1758 void *optval, void *optlen) { 1759 if (res >= 0) { 1760 if (optval) 1761 POST_WRITE(optval, 1762 __sanitizer::internal_strlen((const char *)optval) + 1); 1763 if (optlen) POST_WRITE(optlen, sizeof(int)); 1764 } 1765} 1766 1767PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {} 1768 1769POST_SYSCALL(bind)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1770 long arg2) { 1771 if (res >= 0) { 1772 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1773 } 1774} 1775 1776PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {} 1777 1778POST_SYSCALL(connect)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1779 long arg2) { 1780 if (res >= 0) { 1781 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1782 } 1783} 1784 1785PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {} 1786 1787POST_SYSCALL(accept)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1788 void *arg2) { 1789 if (res >= 0) { 1790 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1791 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1792 } 1793} 1794 1795PRE_SYSCALL(accept4)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2, 1796 long arg3) {} 1797 1798POST_SYSCALL(accept4)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1799 void *arg2, long arg3) { 1800 if (res >= 0) { 1801 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1802 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1803 } 1804} 1805 1806PRE_SYSCALL(getsockname)(long arg0, sanitizer_kernel_sockaddr *arg1, 1807 void *arg2) {} 1808 1809POST_SYSCALL(getsockname)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1810 void *arg2) { 1811 if (res >= 0) { 1812 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1813 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1814 } 1815} 1816 1817PRE_SYSCALL(getpeername)(long arg0, sanitizer_kernel_sockaddr *arg1, 1818 void *arg2) {} 1819 1820POST_SYSCALL(getpeername)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1821 void *arg2) { 1822 if (res >= 0) { 1823 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1824 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1825 } 1826} 1827 1828PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {} 1829 1830POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) { 1831 if (res) { 1832 if (arg1) POST_READ(arg1, res); 1833 } 1834} 1835 1836PRE_SYSCALL(sendto)(long arg0, void *arg1, long arg2, long arg3, 1837 sanitizer_kernel_sockaddr *arg4, long arg5) {} 1838 1839POST_SYSCALL(sendto)(long res, long arg0, void *arg1, long arg2, long arg3, 1840 sanitizer_kernel_sockaddr *arg4, long arg5) { 1841 if (res >= 0) { 1842 if (arg1) POST_READ(arg1, res); 1843 if (arg4) POST_WRITE(arg4, sizeof(*arg4)); 1844 } 1845} 1846 1847PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {} 1848 1849POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) { 1850 // FIXME: POST_READ 1851} 1852 1853PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {} 1854 1855POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) { 1856 // FIXME: POST_READ 1857} 1858 1859PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {} 1860 1861POST_SYSCALL(recv)(long res, void *buf, long len, long flags) { 1862 if (res >= 0) { 1863 if (buf) POST_WRITE(buf, res); 1864 } 1865} 1866 1867PRE_SYSCALL(recvfrom)(long arg0, void *buf, long len, long flags, 1868 sanitizer_kernel_sockaddr *arg4, void *arg5) {} 1869 1870POST_SYSCALL(recvfrom)(long res, long arg0, void *buf, long len, long flags, 1871 sanitizer_kernel_sockaddr *arg4, void *arg5) { 1872 if (res >= 0) { 1873 if (buf) POST_WRITE(buf, res); 1874 if (arg4) POST_WRITE(arg4, sizeof(*arg4)); 1875 if (arg5) POST_WRITE(arg5, sizeof(int)); 1876 } 1877} 1878 1879PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {} 1880 1881POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {} 1882 1883PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, void *arg3) {} 1884 1885POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2, 1886 void *arg3) { 1887 if (res >= 0) { 1888 if (arg3) POST_WRITE(arg3, sizeof(int)); 1889 } 1890} 1891 1892PRE_SYSCALL(socketcall)(long call, void *args) {} 1893 1894POST_SYSCALL(socketcall)(long res, long call, void *args) { 1895 if (res >= 0) { 1896 if (args) POST_WRITE(args, sizeof(long)); 1897 } 1898} 1899 1900PRE_SYSCALL(listen)(long arg0, long arg1) {} 1901 1902POST_SYSCALL(listen)(long res, long arg0, long arg1) {} 1903 1904PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {} 1905 1906POST_SYSCALL(poll)(long res, __sanitizer_pollfd *ufds, long nfds, 1907 long timeout) { 1908 if (res >= 0) { 1909 if (ufds) POST_WRITE(ufds, nfds * sizeof(*ufds)); 1910 } 1911} 1912 1913PRE_SYSCALL(select)(long n, __sanitizer___kernel_fd_set *inp, 1914 __sanitizer___kernel_fd_set *outp, 1915 __sanitizer___kernel_fd_set *exp, void *tvp) {} 1916 1917POST_SYSCALL(select)(long res, long n, __sanitizer___kernel_fd_set *inp, 1918 __sanitizer___kernel_fd_set *outp, 1919 __sanitizer___kernel_fd_set *exp, void *tvp) { 1920 if (res >= 0) { 1921 if (inp) POST_WRITE(inp, sizeof(*inp)); 1922 if (outp) POST_WRITE(outp, sizeof(*outp)); 1923 if (exp) POST_WRITE(exp, sizeof(*exp)); 1924 if (tvp) POST_WRITE(tvp, timeval_sz); 1925 } 1926} 1927 1928PRE_SYSCALL(old_select)(void *arg) {} 1929 1930POST_SYSCALL(old_select)(long res, void *arg) {} 1931 1932PRE_SYSCALL(epoll_create)(long size) {} 1933 1934POST_SYSCALL(epoll_create)(long res, long size) {} 1935 1936PRE_SYSCALL(epoll_create1)(long flags) {} 1937 1938POST_SYSCALL(epoll_create1)(long res, long flags) {} 1939 1940PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {} 1941 1942POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) { 1943 if (res >= 0) { 1944 if (event) POST_WRITE(event, struct_epoll_event_sz); 1945 } 1946} 1947 1948PRE_SYSCALL(epoll_wait)(long epfd, void *events, long maxevents, long timeout) { 1949} 1950 1951POST_SYSCALL(epoll_wait)(long res, long epfd, void *events, long maxevents, 1952 long timeout) { 1953 if (res >= 0) { 1954 if (events) POST_WRITE(events, struct_epoll_event_sz); 1955 } 1956} 1957 1958PRE_SYSCALL(epoll_pwait)(long epfd, void *events, long maxevents, long timeout, 1959 const kernel_sigset_t *sigmask, long sigsetsize) { 1960 if (sigmask) PRE_READ(sigmask, sigsetsize); 1961} 1962 1963POST_SYSCALL(epoll_pwait)(long res, long epfd, void *events, long maxevents, 1964 long timeout, const void *sigmask, long sigsetsize) { 1965 if (res >= 0) { 1966 if (events) POST_WRITE(events, struct_epoll_event_sz); 1967 } 1968} 1969 1970PRE_SYSCALL(gethostname)(void *name, long len) {} 1971 1972POST_SYSCALL(gethostname)(long res, void *name, long len) { 1973 if (res >= 0) { 1974 if (name) 1975 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1976 } 1977} 1978 1979PRE_SYSCALL(sethostname)(void *name, long len) {} 1980 1981POST_SYSCALL(sethostname)(long res, void *name, long len) { 1982 if (res >= 0) { 1983 if (name) 1984 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1985 } 1986} 1987 1988PRE_SYSCALL(setdomainname)(void *name, long len) {} 1989 1990POST_SYSCALL(setdomainname)(long res, void *name, long len) { 1991 if (res >= 0) { 1992 if (name) 1993 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1994 } 1995} 1996 1997PRE_SYSCALL(newuname)(void *name) {} 1998 1999POST_SYSCALL(newuname)(long res, void *name) { 2000 if (res >= 0) { 2001 if (name) POST_WRITE(name, struct_new_utsname_sz); 2002 } 2003} 2004 2005PRE_SYSCALL(uname)(void *arg0) {} 2006 2007POST_SYSCALL(uname)(long res, void *arg0) { 2008 if (res >= 0) { 2009 if (arg0) POST_WRITE(arg0, struct_old_utsname_sz); 2010 } 2011} 2012 2013PRE_SYSCALL(olduname)(void *arg0) {} 2014 2015POST_SYSCALL(olduname)(long res, void *arg0) { 2016 if (res >= 0) { 2017 if (arg0) POST_WRITE(arg0, struct_oldold_utsname_sz); 2018 } 2019} 2020 2021PRE_SYSCALL(getrlimit)(long resource, void *rlim) {} 2022 2023POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) { 2024 if (res >= 0) { 2025 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2026 } 2027} 2028 2029PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {} 2030 2031POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) { 2032 if (res >= 0) { 2033 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2034 } 2035} 2036 2037PRE_SYSCALL(setrlimit)(long resource, void *rlim) {} 2038 2039POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) { 2040 if (res >= 0) { 2041 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2042 } 2043} 2044 2045#if !SANITIZER_ANDROID 2046PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim, 2047 void *old_rlim) { 2048 if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz); 2049} 2050 2051POST_SYSCALL(prlimit64)(long res, long pid, long resource, const void *new_rlim, 2052 void *old_rlim) { 2053 if (res >= 0) { 2054 if (old_rlim) POST_WRITE(old_rlim, struct_rlimit64_sz); 2055 } 2056} 2057#endif 2058 2059PRE_SYSCALL(getrusage)(long who, void *ru) {} 2060 2061POST_SYSCALL(getrusage)(long res, long who, void *ru) { 2062 if (res >= 0) { 2063 if (ru) POST_WRITE(ru, struct_rusage_sz); 2064 } 2065} 2066 2067PRE_SYSCALL(umask)(long mask) {} 2068 2069POST_SYSCALL(umask)(long res, long mask) {} 2070 2071PRE_SYSCALL(msgget)(long key, long msgflg) {} 2072 2073POST_SYSCALL(msgget)(long res, long key, long msgflg) {} 2074 2075PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) { 2076 if (msgp) PRE_READ(msgp, msgsz); 2077} 2078 2079POST_SYSCALL(msgsnd)(long res, long msqid, void *msgp, long msgsz, 2080 long msgflg) {} 2081 2082PRE_SYSCALL(msgrcv)(long msqid, void *msgp, long msgsz, long msgtyp, 2083 long msgflg) {} 2084 2085POST_SYSCALL(msgrcv)(long res, long msqid, void *msgp, long msgsz, long msgtyp, 2086 long msgflg) { 2087 if (res >= 0) { 2088 if (msgp) POST_WRITE(msgp, res); 2089 } 2090} 2091 2092#if !SANITIZER_ANDROID 2093PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {} 2094 2095POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) { 2096 if (res >= 0) { 2097 if (buf) POST_WRITE(buf, struct_msqid_ds_sz); 2098 } 2099} 2100#endif 2101 2102PRE_SYSCALL(semget)(long key, long nsems, long semflg) {} 2103 2104POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {} 2105 2106PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {} 2107 2108POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {} 2109 2110PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {} 2111 2112POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {} 2113 2114PRE_SYSCALL(semtimedop)(long semid, void *sops, long nsops, 2115 const void *timeout) { 2116 if (timeout) PRE_READ(timeout, struct_timespec_sz); 2117} 2118 2119POST_SYSCALL(semtimedop)(long res, long semid, void *sops, long nsops, 2120 const void *timeout) {} 2121 2122PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {} 2123 2124POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) { 2125 if (res >= 0) { 2126 if (shmaddr) 2127 POST_WRITE(shmaddr, 2128 __sanitizer::internal_strlen((const char *)shmaddr) + 1); 2129 } 2130} 2131 2132PRE_SYSCALL(shmget)(long key, long size, long flag) {} 2133 2134POST_SYSCALL(shmget)(long res, long key, long size, long flag) {} 2135 2136PRE_SYSCALL(shmdt)(void *shmaddr) {} 2137 2138POST_SYSCALL(shmdt)(long res, void *shmaddr) { 2139 if (res >= 0) { 2140 if (shmaddr) 2141 POST_WRITE(shmaddr, 2142 __sanitizer::internal_strlen((const char *)shmaddr) + 1); 2143 } 2144} 2145 2146PRE_SYSCALL(ipc)(long call, long first, long second, long third, void *ptr, 2147 long fifth) {} 2148 2149POST_SYSCALL(ipc)(long res, long call, long first, long second, long third, 2150 void *ptr, long fifth) {} 2151 2152#if !SANITIZER_ANDROID 2153PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {} 2154 2155POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) { 2156 if (res >= 0) { 2157 if (buf) POST_WRITE(buf, sizeof(__sanitizer_shmid_ds)); 2158 } 2159} 2160 2161PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) { 2162 if (name) 2163 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2164} 2165 2166POST_SYSCALL(mq_open)(long res, const void *name, long oflag, long mode, 2167 void *attr) { 2168 if (res >= 0) { 2169 if (attr) POST_WRITE(attr, struct_mq_attr_sz); 2170 } 2171} 2172 2173PRE_SYSCALL(mq_unlink)(const void *name) { 2174 if (name) 2175 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2176} 2177 2178POST_SYSCALL(mq_unlink)(long res, const void *name) {} 2179 2180PRE_SYSCALL(mq_timedsend)(long mqdes, const void *msg_ptr, long msg_len, 2181 long msg_prio, const void *abs_timeout) { 2182 if (msg_ptr) PRE_READ(msg_ptr, msg_len); 2183 if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz); 2184} 2185 2186POST_SYSCALL(mq_timedsend)(long res, long mqdes, const void *msg_ptr, 2187 long msg_len, long msg_prio, 2188 const void *abs_timeout) {} 2189 2190PRE_SYSCALL(mq_timedreceive)(long mqdes, void *msg_ptr, long msg_len, 2191 void *msg_prio, const void *abs_timeout) { 2192 if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz); 2193} 2194 2195POST_SYSCALL(mq_timedreceive)(long res, long mqdes, void *msg_ptr, long msg_len, 2196 int *msg_prio, const void *abs_timeout) { 2197 if (res >= 0) { 2198 if (msg_ptr) POST_WRITE(msg_ptr, res); 2199 if (msg_prio) POST_WRITE(msg_prio, sizeof(*msg_prio)); 2200 } 2201} 2202 2203PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) { 2204 if (notification) PRE_READ(notification, struct_sigevent_sz); 2205} 2206 2207POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {} 2208 2209PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) { 2210 if (mqstat) PRE_READ(mqstat, struct_mq_attr_sz); 2211} 2212 2213POST_SYSCALL(mq_getsetattr)(long res, long mqdes, const void *mqstat, 2214 void *omqstat) { 2215 if (res >= 0) { 2216 if (omqstat) POST_WRITE(omqstat, struct_mq_attr_sz); 2217 } 2218} 2219#endif // SANITIZER_ANDROID 2220 2221PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {} 2222 2223POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {} 2224 2225PRE_SYSCALL(pciconfig_read)(long bus, long dfn, long off, long len, void *buf) { 2226} 2227 2228POST_SYSCALL(pciconfig_read)(long res, long bus, long dfn, long off, long len, 2229 void *buf) {} 2230 2231PRE_SYSCALL(pciconfig_write)(long bus, long dfn, long off, long len, 2232 void *buf) {} 2233 2234POST_SYSCALL(pciconfig_write)(long res, long bus, long dfn, long off, long len, 2235 void *buf) {} 2236 2237PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) { 2238 if (specialfile) 2239 PRE_READ(specialfile, 2240 __sanitizer::internal_strlen((const char *)specialfile) + 1); 2241} 2242 2243POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {} 2244 2245PRE_SYSCALL(swapoff)(const void *specialfile) { 2246 if (specialfile) 2247 PRE_READ(specialfile, 2248 __sanitizer::internal_strlen((const char *)specialfile) + 1); 2249} 2250 2251POST_SYSCALL(swapoff)(long res, const void *specialfile) {} 2252 2253PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) { 2254 if (args) { 2255 if (args->name) PRE_READ(args->name, args->nlen * sizeof(*args->name)); 2256 if (args->newval) PRE_READ(args->name, args->newlen); 2257 } 2258} 2259 2260POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) { 2261 if (res >= 0) { 2262 if (args && args->oldval && args->oldlenp) { 2263 POST_WRITE(args->oldlenp, sizeof(*args->oldlenp)); 2264 POST_WRITE(args->oldval, *args->oldlenp); 2265 } 2266 } 2267} 2268 2269PRE_SYSCALL(sysinfo)(void *info) {} 2270 2271POST_SYSCALL(sysinfo)(long res, void *info) { 2272 if (res >= 0) { 2273 if (info) POST_WRITE(info, struct_sysinfo_sz); 2274 } 2275} 2276 2277PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {} 2278 2279POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {} 2280 2281PRE_SYSCALL(syslog)(long type, void *buf, long len) {} 2282 2283POST_SYSCALL(syslog)(long res, long type, void *buf, long len) { 2284 if (res >= 0) { 2285 if (buf) 2286 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 2287 } 2288} 2289 2290PRE_SYSCALL(uselib)(const void *library) { 2291 if (library) 2292 PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1); 2293} 2294 2295POST_SYSCALL(uselib)(long res, const void *library) {} 2296 2297PRE_SYSCALL(ni_syscall)() {} 2298 2299POST_SYSCALL(ni_syscall)(long res) {} 2300 2301PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) { 2302#if !SANITIZER_ANDROID && \ 2303 (defined(__i386) || defined(__x86_64) || defined(__mips64)) 2304 if (data) { 2305 if (request == ptrace_setregs) { 2306 PRE_READ((void *)data, struct_user_regs_struct_sz); 2307 } else if (request == ptrace_setfpregs) { 2308 PRE_READ((void *)data, struct_user_fpregs_struct_sz); 2309 } else if (request == ptrace_setfpxregs) { 2310 PRE_READ((void *)data, struct_user_fpxregs_struct_sz); 2311 } else if (request == ptrace_setsiginfo) { 2312 PRE_READ((void *)data, siginfo_t_sz); 2313 } else if (request == ptrace_setregset) { 2314 __sanitizer_iovec *iov = (__sanitizer_iovec *)data; 2315 PRE_READ(iov->iov_base, iov->iov_len); 2316 } 2317 } 2318#endif 2319} 2320 2321POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) { 2322#if !SANITIZER_ANDROID && \ 2323 (defined(__i386) || defined(__x86_64) || defined(__mips64)) 2324 if (res >= 0 && data) { 2325 // Note that this is different from the interceptor in 2326 // sanitizer_common_interceptors.inc. 2327 // PEEK* requests return resulting values through data pointer. 2328 if (request == ptrace_getregs) { 2329 POST_WRITE((void *)data, struct_user_regs_struct_sz); 2330 } else if (request == ptrace_getfpregs) { 2331 POST_WRITE((void *)data, struct_user_fpregs_struct_sz); 2332 } else if (request == ptrace_getfpxregs) { 2333 POST_WRITE((void *)data, struct_user_fpxregs_struct_sz); 2334 } else if (request == ptrace_getsiginfo) { 2335 POST_WRITE((void *)data, siginfo_t_sz); 2336 } else if (request == ptrace_getregset) { 2337 __sanitizer_iovec *iov = (__sanitizer_iovec *)data; 2338 POST_WRITE(iov->iov_base, iov->iov_len); 2339 } else if (request == ptrace_peekdata || request == ptrace_peektext || 2340 request == ptrace_peekuser) { 2341 POST_WRITE((void *)data, sizeof(void *)); 2342 } 2343 } 2344#endif 2345} 2346 2347PRE_SYSCALL(add_key)(const void *_type, const void *_description, 2348 const void *_payload, long plen, long destringid) { 2349 if (_type) 2350 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1); 2351 if (_description) 2352 PRE_READ(_description, 2353 __sanitizer::internal_strlen((const char *)_description) + 1); 2354} 2355 2356POST_SYSCALL(add_key)(long res, const void *_type, const void *_description, 2357 const void *_payload, long plen, long destringid) {} 2358 2359PRE_SYSCALL(request_key)(const void *_type, const void *_description, 2360 const void *_callout_info, long destringid) { 2361 if (_type) 2362 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1); 2363 if (_description) 2364 PRE_READ(_description, 2365 __sanitizer::internal_strlen((const char *)_description) + 1); 2366 if (_callout_info) 2367 PRE_READ(_callout_info, 2368 __sanitizer::internal_strlen((const char *)_callout_info) + 1); 2369} 2370 2371POST_SYSCALL(request_key)(long res, const void *_type, const void *_description, 2372 const void *_callout_info, long destringid) {} 2373 2374PRE_SYSCALL(keyctl)(long cmd, long arg2, long arg3, long arg4, long arg5) {} 2375 2376POST_SYSCALL(keyctl)(long res, long cmd, long arg2, long arg3, long arg4, 2377 long arg5) {} 2378 2379PRE_SYSCALL(ioprio_set)(long which, long who, long ioprio) {} 2380 2381POST_SYSCALL(ioprio_set)(long res, long which, long who, long ioprio) {} 2382 2383PRE_SYSCALL(ioprio_get)(long which, long who) {} 2384 2385POST_SYSCALL(ioprio_get)(long res, long which, long who) {} 2386 2387PRE_SYSCALL(set_mempolicy)(long mode, void *nmask, long maxnode) {} 2388 2389POST_SYSCALL(set_mempolicy)(long res, long mode, void *nmask, long maxnode) { 2390 if (res >= 0) { 2391 if (nmask) POST_WRITE(nmask, sizeof(long)); 2392 } 2393} 2394 2395PRE_SYSCALL(migrate_pages)(long pid, long maxnode, const void *from, 2396 const void *to) { 2397 if (from) PRE_READ(from, sizeof(long)); 2398 if (to) PRE_READ(to, sizeof(long)); 2399} 2400 2401POST_SYSCALL(migrate_pages)(long res, long pid, long maxnode, const void *from, 2402 const void *to) {} 2403 2404PRE_SYSCALL(move_pages)(long pid, long nr_pages, const void **pages, 2405 const int *nodes, int *status, long flags) { 2406 if (pages) PRE_READ(pages, nr_pages * sizeof(*pages)); 2407 if (nodes) PRE_READ(nodes, nr_pages * sizeof(*nodes)); 2408} 2409 2410POST_SYSCALL(move_pages)(long res, long pid, long nr_pages, const void **pages, 2411 const int *nodes, int *status, long flags) { 2412 if (res >= 0) { 2413 if (status) POST_WRITE(status, nr_pages * sizeof(*status)); 2414 } 2415} 2416 2417PRE_SYSCALL(mbind)(long start, long len, long mode, void *nmask, long maxnode, 2418 long flags) {} 2419 2420POST_SYSCALL(mbind)(long res, long start, long len, long mode, void *nmask, 2421 long maxnode, long flags) { 2422 if (res >= 0) { 2423 if (nmask) POST_WRITE(nmask, sizeof(long)); 2424 } 2425} 2426 2427PRE_SYSCALL(get_mempolicy)(void *policy, void *nmask, long maxnode, long addr, 2428 long flags) {} 2429 2430POST_SYSCALL(get_mempolicy)(long res, void *policy, void *nmask, long maxnode, 2431 long addr, long flags) { 2432 if (res >= 0) { 2433 if (policy) POST_WRITE(policy, sizeof(int)); 2434 if (nmask) POST_WRITE(nmask, sizeof(long)); 2435 } 2436} 2437 2438PRE_SYSCALL(inotify_init)() {} 2439 2440POST_SYSCALL(inotify_init)(long res) {} 2441 2442PRE_SYSCALL(inotify_init1)(long flags) {} 2443 2444POST_SYSCALL(inotify_init1)(long res, long flags) {} 2445 2446PRE_SYSCALL(inotify_add_watch)(long fd, const void *path, long mask) { 2447 if (path) 2448 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 2449} 2450 2451POST_SYSCALL(inotify_add_watch)(long res, long fd, const void *path, 2452 long mask) {} 2453 2454PRE_SYSCALL(inotify_rm_watch)(long fd, long wd) {} 2455 2456POST_SYSCALL(inotify_rm_watch)(long res, long fd, long wd) {} 2457 2458PRE_SYSCALL(spu_run)(long fd, void *unpc, void *ustatus) {} 2459 2460POST_SYSCALL(spu_run)(long res, long fd, unsigned *unpc, unsigned *ustatus) { 2461 if (res >= 0) { 2462 if (unpc) POST_WRITE(unpc, sizeof(*unpc)); 2463 if (ustatus) POST_WRITE(ustatus, sizeof(*ustatus)); 2464 } 2465} 2466 2467PRE_SYSCALL(spu_create)(const void *name, long flags, long mode, long fd) { 2468 if (name) 2469 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2470} 2471 2472POST_SYSCALL(spu_create)(long res, const void *name, long flags, long mode, 2473 long fd) {} 2474 2475PRE_SYSCALL(mknodat)(long dfd, const void *filename, long mode, long dev) { 2476 if (filename) 2477 PRE_READ(filename, 2478 __sanitizer::internal_strlen((const char *)filename) + 1); 2479} 2480 2481POST_SYSCALL(mknodat)(long res, long dfd, const void *filename, long mode, 2482 long dev) {} 2483 2484PRE_SYSCALL(mkdirat)(long dfd, const void *pathname, long mode) { 2485 if (pathname) 2486 PRE_READ(pathname, 2487 __sanitizer::internal_strlen((const char *)pathname) + 1); 2488} 2489 2490POST_SYSCALL(mkdirat)(long res, long dfd, const void *pathname, long mode) {} 2491 2492PRE_SYSCALL(unlinkat)(long dfd, const void *pathname, long flag) { 2493 if (pathname) 2494 PRE_READ(pathname, 2495 __sanitizer::internal_strlen((const char *)pathname) + 1); 2496} 2497 2498POST_SYSCALL(unlinkat)(long res, long dfd, const void *pathname, long flag) {} 2499 2500PRE_SYSCALL(symlinkat)(const void *oldname, long newdfd, const void *newname) { 2501 if (oldname) 2502 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2503 if (newname) 2504 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2505} 2506 2507POST_SYSCALL(symlinkat)(long res, const void *oldname, long newdfd, 2508 const void *newname) {} 2509 2510PRE_SYSCALL(linkat)(long olddfd, const void *oldname, long newdfd, 2511 const void *newname, long flags) { 2512 if (oldname) 2513 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2514 if (newname) 2515 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2516} 2517 2518POST_SYSCALL(linkat)(long res, long olddfd, const void *oldname, long newdfd, 2519 const void *newname, long flags) {} 2520 2521PRE_SYSCALL(renameat)(long olddfd, const void *oldname, long newdfd, 2522 const void *newname) { 2523 if (oldname) 2524 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2525 if (newname) 2526 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2527} 2528 2529POST_SYSCALL(renameat)(long res, long olddfd, const void *oldname, long newdfd, 2530 const void *newname) {} 2531 2532PRE_SYSCALL(futimesat)(long dfd, const void *filename, void *utimes) { 2533 if (filename) 2534 PRE_READ(filename, 2535 __sanitizer::internal_strlen((const char *)filename) + 1); 2536} 2537 2538POST_SYSCALL(futimesat)(long res, long dfd, const void *filename, 2539 void *utimes) { 2540 if (res >= 0) { 2541 if (utimes) POST_WRITE(utimes, timeval_sz); 2542 } 2543} 2544 2545PRE_SYSCALL(faccessat)(long dfd, const void *filename, long mode) { 2546 if (filename) 2547 PRE_READ(filename, 2548 __sanitizer::internal_strlen((const char *)filename) + 1); 2549} 2550 2551POST_SYSCALL(faccessat)(long res, long dfd, const void *filename, long mode) {} 2552 2553PRE_SYSCALL(fchmodat)(long dfd, const void *filename, long mode) { 2554 if (filename) 2555 PRE_READ(filename, 2556 __sanitizer::internal_strlen((const char *)filename) + 1); 2557} 2558 2559POST_SYSCALL(fchmodat)(long res, long dfd, const void *filename, long mode) {} 2560 2561PRE_SYSCALL(fchownat)(long dfd, const void *filename, long user, long group, 2562 long flag) { 2563 if (filename) 2564 PRE_READ(filename, 2565 __sanitizer::internal_strlen((const char *)filename) + 1); 2566} 2567 2568POST_SYSCALL(fchownat)(long res, long dfd, const void *filename, long user, 2569 long group, long flag) {} 2570 2571PRE_SYSCALL(openat)(long dfd, const void *filename, long flags, long mode) { 2572 if (filename) 2573 PRE_READ(filename, 2574 __sanitizer::internal_strlen((const char *)filename) + 1); 2575} 2576 2577POST_SYSCALL(openat)(long res, long dfd, const void *filename, long flags, 2578 long mode) {} 2579 2580PRE_SYSCALL(newfstatat)(long dfd, const void *filename, void *statbuf, 2581 long flag) { 2582 if (filename) 2583 PRE_READ(filename, 2584 __sanitizer::internal_strlen((const char *)filename) + 1); 2585} 2586 2587POST_SYSCALL(newfstatat)(long res, long dfd, const void *filename, 2588 void *statbuf, long flag) { 2589 if (res >= 0) { 2590 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz); 2591 } 2592} 2593 2594PRE_SYSCALL(fstatat64)(long dfd, const void *filename, void *statbuf, 2595 long flag) { 2596 if (filename) 2597 PRE_READ(filename, 2598 __sanitizer::internal_strlen((const char *)filename) + 1); 2599} 2600 2601POST_SYSCALL(fstatat64)(long res, long dfd, const void *filename, void *statbuf, 2602 long flag) { 2603 if (res >= 0) { 2604 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz); 2605 } 2606} 2607 2608PRE_SYSCALL(readlinkat)(long dfd, const void *path, void *buf, long bufsiz) { 2609 if (path) 2610 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 2611} 2612 2613POST_SYSCALL(readlinkat)(long res, long dfd, const void *path, void *buf, 2614 long bufsiz) { 2615 if (res >= 0) { 2616 if (buf) 2617 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 2618 } 2619} 2620 2621PRE_SYSCALL(utimensat)(long dfd, const void *filename, void *utimes, 2622 long flags) { 2623 if (filename) 2624 PRE_READ(filename, 2625 __sanitizer::internal_strlen((const char *)filename) + 1); 2626} 2627 2628POST_SYSCALL(utimensat)(long res, long dfd, const void *filename, void *utimes, 2629 long flags) { 2630 if (res >= 0) { 2631 if (utimes) POST_WRITE(utimes, struct_timespec_sz); 2632 } 2633} 2634 2635PRE_SYSCALL(unshare)(long unshare_flags) {} 2636 2637POST_SYSCALL(unshare)(long res, long unshare_flags) {} 2638 2639PRE_SYSCALL(splice)(long fd_in, void *off_in, long fd_out, void *off_out, 2640 long len, long flags) {} 2641 2642POST_SYSCALL(splice)(long res, long fd_in, void *off_in, long fd_out, 2643 void *off_out, long len, long flags) { 2644 if (res >= 0) { 2645 if (off_in) POST_WRITE(off_in, sizeof(long long)); 2646 if (off_out) POST_WRITE(off_out, sizeof(long long)); 2647 } 2648} 2649 2650PRE_SYSCALL(vmsplice)(long fd, const __sanitizer_iovec *iov, long nr_segs, 2651 long flags) {} 2652 2653POST_SYSCALL(vmsplice)(long res, long fd, const __sanitizer_iovec *iov, 2654 long nr_segs, long flags) { 2655 if (res >= 0) { 2656 if (iov) kernel_read_iovec(iov, nr_segs, res); 2657 } 2658} 2659 2660PRE_SYSCALL(tee)(long fdin, long fdout, long len, long flags) {} 2661 2662POST_SYSCALL(tee)(long res, long fdin, long fdout, long len, long flags) {} 2663 2664PRE_SYSCALL(get_robust_list)(long pid, void *head_ptr, void *len_ptr) {} 2665 2666POST_SYSCALL(get_robust_list)(long res, long pid, void *head_ptr, 2667 void *len_ptr) {} 2668 2669PRE_SYSCALL(set_robust_list)(void *head, long len) {} 2670 2671POST_SYSCALL(set_robust_list)(long res, void *head, long len) {} 2672 2673PRE_SYSCALL(getcpu)(void *cpu, void *node, void *cache) {} 2674 2675POST_SYSCALL(getcpu)(long res, void *cpu, void *node, void *cache) { 2676 if (res >= 0) { 2677 if (cpu) POST_WRITE(cpu, sizeof(unsigned)); 2678 if (node) POST_WRITE(node, sizeof(unsigned)); 2679 // The third argument to this system call is nowadays unused. 2680 } 2681} 2682 2683PRE_SYSCALL(signalfd)(long ufd, void *user_mask, long sizemask) {} 2684 2685POST_SYSCALL(signalfd)(long res, long ufd, kernel_sigset_t *user_mask, 2686 long sizemask) { 2687 if (res >= 0) { 2688 if (user_mask) POST_WRITE(user_mask, sizemask); 2689 } 2690} 2691 2692PRE_SYSCALL(signalfd4)(long ufd, void *user_mask, long sizemask, long flags) {} 2693 2694POST_SYSCALL(signalfd4)(long res, long ufd, kernel_sigset_t *user_mask, 2695 long sizemask, long flags) { 2696 if (res >= 0) { 2697 if (user_mask) POST_WRITE(user_mask, sizemask); 2698 } 2699} 2700 2701PRE_SYSCALL(timerfd_create)(long clockid, long flags) {} 2702 2703POST_SYSCALL(timerfd_create)(long res, long clockid, long flags) {} 2704 2705PRE_SYSCALL(timerfd_settime)(long ufd, long flags, const void *utmr, 2706 void *otmr) { 2707 if (utmr) PRE_READ(utmr, struct_itimerspec_sz); 2708} 2709 2710POST_SYSCALL(timerfd_settime)(long res, long ufd, long flags, const void *utmr, 2711 void *otmr) { 2712 if (res >= 0) { 2713 if (otmr) POST_WRITE(otmr, struct_itimerspec_sz); 2714 } 2715} 2716 2717PRE_SYSCALL(timerfd_gettime)(long ufd, void *otmr) {} 2718 2719POST_SYSCALL(timerfd_gettime)(long res, long ufd, void *otmr) { 2720 if (res >= 0) { 2721 if (otmr) POST_WRITE(otmr, struct_itimerspec_sz); 2722 } 2723} 2724 2725PRE_SYSCALL(eventfd)(long count) {} 2726 2727POST_SYSCALL(eventfd)(long res, long count) {} 2728 2729PRE_SYSCALL(eventfd2)(long count, long flags) {} 2730 2731POST_SYSCALL(eventfd2)(long res, long count, long flags) {} 2732 2733PRE_SYSCALL(old_readdir)(long arg0, void *arg1, long arg2) {} 2734 2735POST_SYSCALL(old_readdir)(long res, long arg0, void *arg1, long arg2) { 2736 // Missing definition of 'struct old_linux_dirent'. 2737} 2738 2739PRE_SYSCALL(pselect6)(long arg0, __sanitizer___kernel_fd_set *arg1, 2740 __sanitizer___kernel_fd_set *arg2, 2741 __sanitizer___kernel_fd_set *arg3, void *arg4, 2742 void *arg5) {} 2743 2744POST_SYSCALL(pselect6)(long res, long arg0, __sanitizer___kernel_fd_set *arg1, 2745 __sanitizer___kernel_fd_set *arg2, 2746 __sanitizer___kernel_fd_set *arg3, void *arg4, 2747 void *arg5) { 2748 if (res >= 0) { 2749 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 2750 if (arg2) POST_WRITE(arg2, sizeof(*arg2)); 2751 if (arg3) POST_WRITE(arg3, sizeof(*arg3)); 2752 if (arg4) POST_WRITE(arg4, struct_timespec_sz); 2753 } 2754} 2755 2756PRE_SYSCALL(ppoll)(__sanitizer_pollfd *arg0, long arg1, void *arg2, 2757 const kernel_sigset_t *arg3, long arg4) { 2758 if (arg3) PRE_READ(arg3, arg4); 2759} 2760 2761POST_SYSCALL(ppoll)(long res, __sanitizer_pollfd *arg0, long arg1, void *arg2, 2762 const void *arg3, long arg4) { 2763 if (res >= 0) { 2764 if (arg0) POST_WRITE(arg0, sizeof(*arg0)); 2765 if (arg2) POST_WRITE(arg2, struct_timespec_sz); 2766 } 2767} 2768 2769PRE_SYSCALL(syncfs)(long fd) {} 2770 2771POST_SYSCALL(syncfs)(long res, long fd) {} 2772 2773PRE_SYSCALL(perf_event_open)(__sanitizer_perf_event_attr *attr_uptr, long pid, 2774 long cpu, long group_fd, long flags) { 2775 if (attr_uptr) PRE_READ(attr_uptr, attr_uptr->size); 2776} 2777 2778POST_SYSCALL(perf_event_open)(long res, __sanitizer_perf_event_attr *attr_uptr, 2779 long pid, long cpu, long group_fd, long flags) {} 2780 2781PRE_SYSCALL(mmap_pgoff)(long addr, long len, long prot, long flags, long fd, 2782 long pgoff) {} 2783 2784POST_SYSCALL(mmap_pgoff)(long res, long addr, long len, long prot, long flags, 2785 long fd, long pgoff) {} 2786 2787PRE_SYSCALL(old_mmap)(void *arg) {} 2788 2789POST_SYSCALL(old_mmap)(long res, void *arg) {} 2790 2791PRE_SYSCALL(name_to_handle_at)(long dfd, const void *name, void *handle, 2792 void *mnt_id, long flag) {} 2793 2794POST_SYSCALL(name_to_handle_at)(long res, long dfd, const void *name, 2795 void *handle, void *mnt_id, long flag) {} 2796 2797PRE_SYSCALL(open_by_handle_at)(long mountdirfd, void *handle, long flags) {} 2798 2799POST_SYSCALL(open_by_handle_at)(long res, long mountdirfd, void *handle, 2800 long flags) {} 2801 2802PRE_SYSCALL(setns)(long fd, long nstype) {} 2803 2804POST_SYSCALL(setns)(long res, long fd, long nstype) {} 2805 2806PRE_SYSCALL(process_vm_readv)(long pid, const __sanitizer_iovec *lvec, 2807 long liovcnt, const void *rvec, long riovcnt, 2808 long flags) {} 2809 2810POST_SYSCALL(process_vm_readv)(long res, long pid, 2811 const __sanitizer_iovec *lvec, long liovcnt, 2812 const void *rvec, long riovcnt, long flags) { 2813 if (res >= 0) { 2814 if (lvec) kernel_write_iovec(lvec, liovcnt, res); 2815 } 2816} 2817 2818PRE_SYSCALL(process_vm_writev)(long pid, const __sanitizer_iovec *lvec, 2819 long liovcnt, const void *rvec, long riovcnt, 2820 long flags) {} 2821 2822POST_SYSCALL(process_vm_writev)(long res, long pid, 2823 const __sanitizer_iovec *lvec, long liovcnt, 2824 const void *rvec, long riovcnt, long flags) { 2825 if (res >= 0) { 2826 if (lvec) kernel_read_iovec(lvec, liovcnt, res); 2827 } 2828} 2829 2830PRE_SYSCALL(fork)() { 2831 COMMON_SYSCALL_PRE_FORK(); 2832} 2833 2834POST_SYSCALL(fork)(long res) { 2835 COMMON_SYSCALL_POST_FORK(res); 2836} 2837 2838PRE_SYSCALL(vfork)() { 2839 COMMON_SYSCALL_PRE_FORK(); 2840} 2841 2842POST_SYSCALL(vfork)(long res) { 2843 COMMON_SYSCALL_POST_FORK(res); 2844} 2845} // extern "C" 2846 2847#undef PRE_SYSCALL 2848#undef PRE_READ 2849#undef PRE_WRITE 2850#undef POST_SYSCALL 2851#undef POST_READ 2852#undef POST_WRITE 2853 2854#endif // SANITIZER_LINUX 2855