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) * 2); 1242} 1243 1244PRE_SYSCALL(pipe2)(void *fildes, long flags) {} 1245 1246POST_SYSCALL(pipe2)(long res, void *fildes, long flags) { 1247 if (res >= 0) 1248 if (fildes) POST_WRITE(fildes, sizeof(int) * 2); 1249} 1250 1251PRE_SYSCALL(dup)(long fildes) {} 1252 1253POST_SYSCALL(dup)(long res, long fildes) {} 1254 1255PRE_SYSCALL(dup2)(long oldfd, long newfd) {} 1256 1257POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {} 1258 1259PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {} 1260 1261POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {} 1262 1263PRE_SYSCALL(ioperm)(long from, long num, long on) {} 1264 1265POST_SYSCALL(ioperm)(long res, long from, long num, long on) {} 1266 1267PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {} 1268 1269POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {} 1270 1271PRE_SYSCALL(flock)(long fd, long cmd) {} 1272 1273POST_SYSCALL(flock)(long res, long fd, long cmd) {} 1274 1275PRE_SYSCALL(io_setup)(long nr_reqs, void **ctx) { 1276 if (ctx) PRE_WRITE(ctx, sizeof(*ctx)); 1277} 1278 1279POST_SYSCALL(io_setup)(long res, long nr_reqs, void **ctx) { 1280 if (res >= 0) { 1281 if (ctx) POST_WRITE(ctx, sizeof(*ctx)); 1282 // (*ctx) is actually a pointer to a kernel mapped page, and there are 1283 // people out there who are crazy enough to peek into that page's 32-byte 1284 // header. 1285 if (*ctx) POST_WRITE(*ctx, 32); 1286 } 1287} 1288 1289PRE_SYSCALL(io_destroy)(long ctx) {} 1290 1291POST_SYSCALL(io_destroy)(long res, long ctx) {} 1292 1293PRE_SYSCALL(io_getevents)(long ctx_id, long min_nr, long nr, 1294 __sanitizer_io_event *ioevpp, void *timeout) { 1295 if (timeout) PRE_READ(timeout, struct_timespec_sz); 1296} 1297 1298POST_SYSCALL(io_getevents)(long res, long ctx_id, long min_nr, long nr, 1299 __sanitizer_io_event *ioevpp, void *timeout) { 1300 if (res >= 0) { 1301 if (ioevpp) POST_WRITE(ioevpp, res * sizeof(*ioevpp)); 1302 if (timeout) POST_WRITE(timeout, struct_timespec_sz); 1303 } 1304 for (long i = 0; i < res; i++) { 1305 // We synchronize io_submit -> io_getevents/io_cancel using the 1306 // user-provided data context. Data is not necessary a pointer, it can be 1307 // an int, 0 or whatever; acquire/release will correctly handle this. 1308 // This scheme can lead to false negatives, e.g. when all operations 1309 // synchronize on 0. But there does not seem to be a better solution 1310 // (except wrapping all operations in own context, which is unreliable). 1311 // We can not reliably extract fildes in io_getevents. 1312 COMMON_SYSCALL_ACQUIRE((void*)ioevpp[i].data); 1313 } 1314} 1315 1316PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) { 1317 for (long i = 0; i < nr; ++i) { 1318 uptr op = iocbpp[i]->aio_lio_opcode; 1319 void *data = (void*)iocbpp[i]->aio_data; 1320 void *buf = (void*)iocbpp[i]->aio_buf; 1321 uptr len = (uptr)iocbpp[i]->aio_nbytes; 1322 if (op == iocb_cmd_pwrite && buf && len) { 1323 PRE_READ(buf, len); 1324 } else if (op == iocb_cmd_pread && buf && len) { 1325 POST_WRITE(buf, len); 1326 } else if (op == iocb_cmd_pwritev) { 1327 __sanitizer_iovec *iovec = (__sanitizer_iovec*)buf; 1328 for (uptr v = 0; v < len; v++) 1329 PRE_READ(iovec[v].iov_base, iovec[v].iov_len); 1330 } else if (op == iocb_cmd_preadv) { 1331 __sanitizer_iovec *iovec = (__sanitizer_iovec*)buf; 1332 for (uptr v = 0; v < len; v++) 1333 POST_WRITE(iovec[v].iov_base, iovec[v].iov_len); 1334 } 1335 // See comment in io_getevents. 1336 COMMON_SYSCALL_RELEASE(data); 1337 } 1338} 1339 1340POST_SYSCALL(io_submit)(long res, long ctx_id, long nr, 1341 __sanitizer_iocb **iocbpp) {} 1342 1343PRE_SYSCALL(io_cancel)(long ctx_id, __sanitizer_iocb *iocb, 1344 __sanitizer_io_event *result) { 1345} 1346 1347POST_SYSCALL(io_cancel)(long res, long ctx_id, __sanitizer_iocb *iocb, 1348 __sanitizer_io_event *result) { 1349 if (res == 0) { 1350 if (result) { 1351 // See comment in io_getevents. 1352 COMMON_SYSCALL_ACQUIRE((void*)result->data); 1353 POST_WRITE(result, sizeof(*result)); 1354 } 1355 if (iocb) 1356 POST_WRITE(iocb, sizeof(*iocb)); 1357 } 1358} 1359 1360PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {} 1361 1362POST_SYSCALL(sendfile)(long res, long out_fd, long in_fd, 1363 __sanitizer___kernel_off_t *offset, long count) { 1364 if (res >= 0) { 1365 if (offset) POST_WRITE(offset, sizeof(*offset)); 1366 } 1367} 1368 1369PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {} 1370 1371POST_SYSCALL(sendfile64)(long res, long out_fd, long in_fd, 1372 __sanitizer___kernel_loff_t *offset, long count) { 1373 if (res >= 0) { 1374 if (offset) POST_WRITE(offset, sizeof(*offset)); 1375 } 1376} 1377 1378PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) { 1379 if (path) 1380 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 1381} 1382 1383POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) { 1384 if (res >= 0) { 1385 if (buf) 1386 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1387 } 1388} 1389 1390PRE_SYSCALL(creat)(const void *pathname, long mode) { 1391 if (pathname) 1392 PRE_READ(pathname, 1393 __sanitizer::internal_strlen((const char *)pathname) + 1); 1394} 1395 1396POST_SYSCALL(creat)(long res, const void *pathname, long mode) {} 1397 1398PRE_SYSCALL(open)(const void *filename, long flags, long mode) { 1399 if (filename) 1400 PRE_READ(filename, 1401 __sanitizer::internal_strlen((const char *)filename) + 1); 1402} 1403 1404POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {} 1405 1406PRE_SYSCALL(close)(long fd) { 1407 COMMON_SYSCALL_FD_CLOSE((int)fd); 1408} 1409 1410POST_SYSCALL(close)(long res, long fd) {} 1411 1412PRE_SYSCALL(access)(const void *filename, long mode) { 1413 if (filename) 1414 PRE_READ(filename, 1415 __sanitizer::internal_strlen((const char *)filename) + 1); 1416} 1417 1418POST_SYSCALL(access)(long res, const void *filename, long mode) {} 1419 1420PRE_SYSCALL(vhangup)() {} 1421 1422POST_SYSCALL(vhangup)(long res) {} 1423 1424PRE_SYSCALL(chown)(const void *filename, long user, long group) { 1425 if (filename) 1426 PRE_READ(filename, 1427 __sanitizer::internal_strlen((const char *)filename) + 1); 1428} 1429 1430POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {} 1431 1432PRE_SYSCALL(lchown)(const void *filename, long user, long group) { 1433 if (filename) 1434 PRE_READ(filename, 1435 __sanitizer::internal_strlen((const char *)filename) + 1); 1436} 1437 1438POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {} 1439 1440PRE_SYSCALL(fchown)(long fd, long user, long group) {} 1441 1442POST_SYSCALL(fchown)(long res, long fd, long user, long group) {} 1443 1444#if SANITIZER_USES_UID16_SYSCALLS 1445PRE_SYSCALL(chown16)(const void *filename, long user, long group) { 1446 if (filename) 1447 PRE_READ(filename, 1448 __sanitizer::internal_strlen((const char *)filename) + 1); 1449} 1450 1451POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {} 1452 1453PRE_SYSCALL(lchown16)(const void *filename, long user, long group) { 1454 if (filename) 1455 PRE_READ(filename, 1456 __sanitizer::internal_strlen((const char *)filename) + 1); 1457} 1458 1459POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {} 1460 1461PRE_SYSCALL(fchown16)(long fd, long user, long group) {} 1462 1463POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {} 1464 1465PRE_SYSCALL(setregid16)(long rgid, long egid) {} 1466 1467POST_SYSCALL(setregid16)(long res, long rgid, long egid) {} 1468 1469PRE_SYSCALL(setgid16)(long gid) {} 1470 1471POST_SYSCALL(setgid16)(long res, long gid) {} 1472 1473PRE_SYSCALL(setreuid16)(long ruid, long euid) {} 1474 1475POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {} 1476 1477PRE_SYSCALL(setuid16)(long uid) {} 1478 1479POST_SYSCALL(setuid16)(long res, long uid) {} 1480 1481PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {} 1482 1483POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {} 1484 1485PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {} 1486 1487POST_SYSCALL(getresuid16)(long res, __sanitizer___kernel_old_uid_t *ruid, 1488 __sanitizer___kernel_old_uid_t *euid, 1489 __sanitizer___kernel_old_uid_t *suid) { 1490 if (res >= 0) { 1491 if (ruid) POST_WRITE(ruid, sizeof(*ruid)); 1492 if (euid) POST_WRITE(euid, sizeof(*euid)); 1493 if (suid) POST_WRITE(suid, sizeof(*suid)); 1494 } 1495} 1496 1497PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {} 1498 1499POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {} 1500 1501PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {} 1502 1503POST_SYSCALL(getresgid16)(long res, __sanitizer___kernel_old_gid_t *rgid, 1504 __sanitizer___kernel_old_gid_t *egid, 1505 __sanitizer___kernel_old_gid_t *sgid) { 1506 if (res >= 0) { 1507 if (rgid) POST_WRITE(rgid, sizeof(*rgid)); 1508 if (egid) POST_WRITE(egid, sizeof(*egid)); 1509 if (sgid) POST_WRITE(sgid, sizeof(*sgid)); 1510 } 1511} 1512 1513PRE_SYSCALL(setfsuid16)(long uid) {} 1514 1515POST_SYSCALL(setfsuid16)(long res, long uid) {} 1516 1517PRE_SYSCALL(setfsgid16)(long gid) {} 1518 1519POST_SYSCALL(setfsgid16)(long res, long gid) {} 1520 1521PRE_SYSCALL(getgroups16)(long gidsetsize, 1522 __sanitizer___kernel_old_gid_t *grouplist) {} 1523 1524POST_SYSCALL(getgroups16)(long res, long gidsetsize, 1525 __sanitizer___kernel_old_gid_t *grouplist) { 1526 if (res >= 0) { 1527 if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist)); 1528 } 1529} 1530 1531PRE_SYSCALL(setgroups16)(long gidsetsize, 1532 __sanitizer___kernel_old_gid_t *grouplist) { 1533 if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist)); 1534} 1535 1536POST_SYSCALL(setgroups16)(long res, long gidsetsize, 1537 __sanitizer___kernel_old_gid_t *grouplist) {} 1538 1539PRE_SYSCALL(getuid16)() {} 1540 1541POST_SYSCALL(getuid16)(long res) {} 1542 1543PRE_SYSCALL(geteuid16)() {} 1544 1545POST_SYSCALL(geteuid16)(long res) {} 1546 1547PRE_SYSCALL(getgid16)() {} 1548 1549POST_SYSCALL(getgid16)(long res) {} 1550 1551PRE_SYSCALL(getegid16)() {} 1552 1553POST_SYSCALL(getegid16)(long res) {} 1554#endif // SANITIZER_USES_UID16_SYSCALLS 1555 1556PRE_SYSCALL(utime)(void *filename, void *times) {} 1557 1558POST_SYSCALL(utime)(long res, void *filename, void *times) { 1559 if (res >= 0) { 1560 if (filename) 1561 POST_WRITE(filename, 1562 __sanitizer::internal_strlen((const char *)filename) + 1); 1563 if (times) POST_WRITE(times, struct_utimbuf_sz); 1564 } 1565} 1566 1567PRE_SYSCALL(utimes)(void *filename, void *utimes) {} 1568 1569POST_SYSCALL(utimes)(long res, void *filename, void *utimes) { 1570 if (res >= 0) { 1571 if (filename) 1572 POST_WRITE(filename, 1573 __sanitizer::internal_strlen((const char *)filename) + 1); 1574 if (utimes) POST_WRITE(utimes, timeval_sz); 1575 } 1576} 1577 1578PRE_SYSCALL(lseek)(long fd, long offset, long origin) {} 1579 1580POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {} 1581 1582PRE_SYSCALL(llseek)(long fd, long offset_high, long offset_low, void *result, 1583 long origin) {} 1584 1585POST_SYSCALL(llseek)(long res, long fd, long offset_high, long offset_low, 1586 void *result, long origin) { 1587 if (res >= 0) { 1588 if (result) POST_WRITE(result, sizeof(long long)); 1589 } 1590} 1591 1592PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {} 1593 1594POST_SYSCALL(readv)(long res, long fd, const __sanitizer_iovec *vec, 1595 long vlen) { 1596 if (res >= 0) { 1597 if (vec) kernel_write_iovec(vec, vlen, res); 1598 } 1599} 1600 1601PRE_SYSCALL(write)(long fd, const void *buf, long count) { 1602 if (buf) PRE_READ(buf, count); 1603} 1604 1605POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {} 1606 1607PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {} 1608 1609POST_SYSCALL(writev)(long res, long fd, const __sanitizer_iovec *vec, 1610 long vlen) { 1611 if (res >= 0) { 1612 if (vec) kernel_read_iovec(vec, vlen, res); 1613 } 1614} 1615 1616#ifdef _LP64 1617PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {} 1618 1619POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) { 1620 if (res >= 0) { 1621 if (buf) POST_WRITE(buf, res); 1622 } 1623} 1624 1625PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) { 1626 if (buf) PRE_READ(buf, count); 1627} 1628 1629POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count, 1630 long pos) {} 1631#else 1632PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {} 1633 1634POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos0, 1635 long pos1) { 1636 if (res >= 0) { 1637 if (buf) POST_WRITE(buf, res); 1638 } 1639} 1640 1641PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos0, 1642 long pos1) { 1643 if (buf) PRE_READ(buf, count); 1644} 1645 1646POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count, 1647 long pos0, long pos1) {} 1648#endif 1649 1650PRE_SYSCALL(preadv)(long fd, const __sanitizer_iovec *vec, long vlen, 1651 long pos_l, long pos_h) {} 1652 1653POST_SYSCALL(preadv)(long res, long fd, const __sanitizer_iovec *vec, long vlen, 1654 long pos_l, long pos_h) { 1655 if (res >= 0) { 1656 if (vec) kernel_write_iovec(vec, vlen, res); 1657 } 1658} 1659 1660PRE_SYSCALL(pwritev)(long fd, const __sanitizer_iovec *vec, long vlen, 1661 long pos_l, long pos_h) {} 1662 1663POST_SYSCALL(pwritev)(long res, long fd, const __sanitizer_iovec *vec, 1664 long vlen, long pos_l, long pos_h) { 1665 if (res >= 0) { 1666 if (vec) kernel_read_iovec(vec, vlen, res); 1667 } 1668} 1669 1670PRE_SYSCALL(getcwd)(void *buf, long size) {} 1671 1672POST_SYSCALL(getcwd)(long res, void *buf, long size) { 1673 if (res >= 0) { 1674 if (buf) 1675 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1676 } 1677} 1678 1679PRE_SYSCALL(mkdir)(const void *pathname, long mode) { 1680 if (pathname) 1681 PRE_READ(pathname, 1682 __sanitizer::internal_strlen((const char *)pathname) + 1); 1683} 1684 1685POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {} 1686 1687PRE_SYSCALL(chdir)(const void *filename) { 1688 if (filename) 1689 PRE_READ(filename, 1690 __sanitizer::internal_strlen((const char *)filename) + 1); 1691} 1692 1693POST_SYSCALL(chdir)(long res, const void *filename) {} 1694 1695PRE_SYSCALL(fchdir)(long fd) {} 1696 1697POST_SYSCALL(fchdir)(long res, long fd) {} 1698 1699PRE_SYSCALL(rmdir)(const void *pathname) { 1700 if (pathname) 1701 PRE_READ(pathname, 1702 __sanitizer::internal_strlen((const char *)pathname) + 1); 1703} 1704 1705POST_SYSCALL(rmdir)(long res, const void *pathname) {} 1706 1707PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {} 1708 1709POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) { 1710 if (res >= 0) { 1711 if (buf) 1712 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 1713 } 1714} 1715 1716PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) { 1717 if (special) 1718 PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1); 1719} 1720 1721POST_SYSCALL(quotactl)(long res, long cmd, const void *special, long id, 1722 void *addr) {} 1723 1724PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {} 1725 1726POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) { 1727 if (res >= 0) { 1728 if (dirent) POST_WRITE(dirent, res); 1729 } 1730} 1731 1732PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {} 1733 1734POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) { 1735 if (res >= 0) { 1736 if (dirent) POST_WRITE(dirent, res); 1737 } 1738} 1739 1740PRE_SYSCALL(setsockopt)(long fd, long level, long optname, void *optval, 1741 long optlen) {} 1742 1743POST_SYSCALL(setsockopt)(long res, long fd, long level, long optname, 1744 void *optval, long optlen) { 1745 if (res >= 0) { 1746 if (optval) 1747 POST_WRITE(optval, 1748 __sanitizer::internal_strlen((const char *)optval) + 1); 1749 } 1750} 1751 1752PRE_SYSCALL(getsockopt)(long fd, long level, long optname, void *optval, 1753 void *optlen) {} 1754 1755POST_SYSCALL(getsockopt)(long res, long fd, long level, long optname, 1756 void *optval, void *optlen) { 1757 if (res >= 0) { 1758 if (optval) 1759 POST_WRITE(optval, 1760 __sanitizer::internal_strlen((const char *)optval) + 1); 1761 if (optlen) POST_WRITE(optlen, sizeof(int)); 1762 } 1763} 1764 1765PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {} 1766 1767POST_SYSCALL(bind)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1768 long arg2) { 1769 if (res >= 0) { 1770 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1771 } 1772} 1773 1774PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {} 1775 1776POST_SYSCALL(connect)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1777 long arg2) { 1778 if (res >= 0) { 1779 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1780 } 1781} 1782 1783PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {} 1784 1785POST_SYSCALL(accept)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1786 void *arg2) { 1787 if (res >= 0) { 1788 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1789 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1790 } 1791} 1792 1793PRE_SYSCALL(accept4)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2, 1794 long arg3) {} 1795 1796POST_SYSCALL(accept4)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1797 void *arg2, long arg3) { 1798 if (res >= 0) { 1799 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1800 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1801 } 1802} 1803 1804PRE_SYSCALL(getsockname)(long arg0, sanitizer_kernel_sockaddr *arg1, 1805 void *arg2) {} 1806 1807POST_SYSCALL(getsockname)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1808 void *arg2) { 1809 if (res >= 0) { 1810 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1811 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1812 } 1813} 1814 1815PRE_SYSCALL(getpeername)(long arg0, sanitizer_kernel_sockaddr *arg1, 1816 void *arg2) {} 1817 1818POST_SYSCALL(getpeername)(long res, long arg0, sanitizer_kernel_sockaddr *arg1, 1819 void *arg2) { 1820 if (res >= 0) { 1821 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 1822 if (arg2) POST_WRITE(arg2, sizeof(unsigned)); 1823 } 1824} 1825 1826PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {} 1827 1828POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) { 1829 if (res) { 1830 if (arg1) POST_READ(arg1, res); 1831 } 1832} 1833 1834PRE_SYSCALL(sendto)(long arg0, void *arg1, long arg2, long arg3, 1835 sanitizer_kernel_sockaddr *arg4, long arg5) {} 1836 1837POST_SYSCALL(sendto)(long res, long arg0, void *arg1, long arg2, long arg3, 1838 sanitizer_kernel_sockaddr *arg4, long arg5) { 1839 if (res >= 0) { 1840 if (arg1) POST_READ(arg1, res); 1841 if (arg4) POST_WRITE(arg4, sizeof(*arg4)); 1842 } 1843} 1844 1845PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {} 1846 1847POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) { 1848 // FIXME: POST_READ 1849} 1850 1851PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {} 1852 1853POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) { 1854 // FIXME: POST_READ 1855} 1856 1857PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {} 1858 1859POST_SYSCALL(recv)(long res, void *buf, long len, long flags) { 1860 if (res >= 0) { 1861 if (buf) POST_WRITE(buf, res); 1862 } 1863} 1864 1865PRE_SYSCALL(recvfrom)(long arg0, void *buf, long len, long flags, 1866 sanitizer_kernel_sockaddr *arg4, void *arg5) {} 1867 1868POST_SYSCALL(recvfrom)(long res, long arg0, void *buf, long len, long flags, 1869 sanitizer_kernel_sockaddr *arg4, void *arg5) { 1870 if (res >= 0) { 1871 if (buf) POST_WRITE(buf, res); 1872 if (arg4) POST_WRITE(arg4, sizeof(*arg4)); 1873 if (arg5) POST_WRITE(arg5, sizeof(int)); 1874 } 1875} 1876 1877PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {} 1878 1879POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {} 1880 1881PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, int *sv) {} 1882 1883POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2, int *sv) { 1884 if (res >= 0) 1885 if (sv) POST_WRITE(sv, sizeof(int) * 2); 1886} 1887 1888PRE_SYSCALL(socketcall)(long call, void *args) {} 1889 1890POST_SYSCALL(socketcall)(long res, long call, void *args) { 1891 if (res >= 0) { 1892 if (args) POST_WRITE(args, sizeof(long)); 1893 } 1894} 1895 1896PRE_SYSCALL(listen)(long arg0, long arg1) {} 1897 1898POST_SYSCALL(listen)(long res, long arg0, long arg1) {} 1899 1900PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {} 1901 1902POST_SYSCALL(poll)(long res, __sanitizer_pollfd *ufds, long nfds, 1903 long timeout) { 1904 if (res >= 0) { 1905 if (ufds) POST_WRITE(ufds, nfds * sizeof(*ufds)); 1906 } 1907} 1908 1909PRE_SYSCALL(select)(long n, __sanitizer___kernel_fd_set *inp, 1910 __sanitizer___kernel_fd_set *outp, 1911 __sanitizer___kernel_fd_set *exp, void *tvp) {} 1912 1913POST_SYSCALL(select)(long res, long n, __sanitizer___kernel_fd_set *inp, 1914 __sanitizer___kernel_fd_set *outp, 1915 __sanitizer___kernel_fd_set *exp, void *tvp) { 1916 if (res >= 0) { 1917 if (inp) POST_WRITE(inp, sizeof(*inp)); 1918 if (outp) POST_WRITE(outp, sizeof(*outp)); 1919 if (exp) POST_WRITE(exp, sizeof(*exp)); 1920 if (tvp) POST_WRITE(tvp, timeval_sz); 1921 } 1922} 1923 1924PRE_SYSCALL(old_select)(void *arg) {} 1925 1926POST_SYSCALL(old_select)(long res, void *arg) {} 1927 1928PRE_SYSCALL(epoll_create)(long size) {} 1929 1930POST_SYSCALL(epoll_create)(long res, long size) {} 1931 1932PRE_SYSCALL(epoll_create1)(long flags) {} 1933 1934POST_SYSCALL(epoll_create1)(long res, long flags) {} 1935 1936PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {} 1937 1938POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) { 1939 if (res >= 0) { 1940 if (event) POST_WRITE(event, struct_epoll_event_sz); 1941 } 1942} 1943 1944PRE_SYSCALL(epoll_wait)(long epfd, void *events, long maxevents, long timeout) { 1945} 1946 1947POST_SYSCALL(epoll_wait)(long res, long epfd, void *events, long maxevents, 1948 long timeout) { 1949 if (res >= 0) { 1950 if (events) POST_WRITE(events, struct_epoll_event_sz); 1951 } 1952} 1953 1954PRE_SYSCALL(epoll_pwait)(long epfd, void *events, long maxevents, long timeout, 1955 const kernel_sigset_t *sigmask, long sigsetsize) { 1956 if (sigmask) PRE_READ(sigmask, sigsetsize); 1957} 1958 1959POST_SYSCALL(epoll_pwait)(long res, long epfd, void *events, long maxevents, 1960 long timeout, const void *sigmask, long sigsetsize) { 1961 if (res >= 0) { 1962 if (events) POST_WRITE(events, struct_epoll_event_sz); 1963 } 1964} 1965 1966PRE_SYSCALL(gethostname)(void *name, long len) {} 1967 1968POST_SYSCALL(gethostname)(long res, void *name, long len) { 1969 if (res >= 0) { 1970 if (name) 1971 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1972 } 1973} 1974 1975PRE_SYSCALL(sethostname)(void *name, long len) {} 1976 1977POST_SYSCALL(sethostname)(long res, void *name, long len) { 1978 if (res >= 0) { 1979 if (name) 1980 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1981 } 1982} 1983 1984PRE_SYSCALL(setdomainname)(void *name, long len) {} 1985 1986POST_SYSCALL(setdomainname)(long res, void *name, long len) { 1987 if (res >= 0) { 1988 if (name) 1989 POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1); 1990 } 1991} 1992 1993PRE_SYSCALL(newuname)(void *name) {} 1994 1995POST_SYSCALL(newuname)(long res, void *name) { 1996 if (res >= 0) { 1997 if (name) POST_WRITE(name, struct_new_utsname_sz); 1998 } 1999} 2000 2001PRE_SYSCALL(uname)(void *arg0) {} 2002 2003POST_SYSCALL(uname)(long res, void *arg0) { 2004 if (res >= 0) { 2005 if (arg0) POST_WRITE(arg0, struct_old_utsname_sz); 2006 } 2007} 2008 2009PRE_SYSCALL(olduname)(void *arg0) {} 2010 2011POST_SYSCALL(olduname)(long res, void *arg0) { 2012 if (res >= 0) { 2013 if (arg0) POST_WRITE(arg0, struct_oldold_utsname_sz); 2014 } 2015} 2016 2017PRE_SYSCALL(getrlimit)(long resource, void *rlim) {} 2018 2019POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) { 2020 if (res >= 0) { 2021 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2022 } 2023} 2024 2025PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {} 2026 2027POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) { 2028 if (res >= 0) { 2029 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2030 } 2031} 2032 2033PRE_SYSCALL(setrlimit)(long resource, void *rlim) {} 2034 2035POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) { 2036 if (res >= 0) { 2037 if (rlim) POST_WRITE(rlim, struct_rlimit_sz); 2038 } 2039} 2040 2041#if !SANITIZER_ANDROID 2042PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim, 2043 void *old_rlim) { 2044 if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz); 2045} 2046 2047POST_SYSCALL(prlimit64)(long res, long pid, long resource, const void *new_rlim, 2048 void *old_rlim) { 2049 if (res >= 0) { 2050 if (old_rlim) POST_WRITE(old_rlim, struct_rlimit64_sz); 2051 } 2052} 2053#endif 2054 2055PRE_SYSCALL(getrusage)(long who, void *ru) {} 2056 2057POST_SYSCALL(getrusage)(long res, long who, void *ru) { 2058 if (res >= 0) { 2059 if (ru) POST_WRITE(ru, struct_rusage_sz); 2060 } 2061} 2062 2063PRE_SYSCALL(umask)(long mask) {} 2064 2065POST_SYSCALL(umask)(long res, long mask) {} 2066 2067PRE_SYSCALL(msgget)(long key, long msgflg) {} 2068 2069POST_SYSCALL(msgget)(long res, long key, long msgflg) {} 2070 2071PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) { 2072 if (msgp) PRE_READ(msgp, msgsz); 2073} 2074 2075POST_SYSCALL(msgsnd)(long res, long msqid, void *msgp, long msgsz, 2076 long msgflg) {} 2077 2078PRE_SYSCALL(msgrcv)(long msqid, void *msgp, long msgsz, long msgtyp, 2079 long msgflg) {} 2080 2081POST_SYSCALL(msgrcv)(long res, long msqid, void *msgp, long msgsz, long msgtyp, 2082 long msgflg) { 2083 if (res >= 0) { 2084 if (msgp) POST_WRITE(msgp, res); 2085 } 2086} 2087 2088#if !SANITIZER_ANDROID 2089PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {} 2090 2091POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) { 2092 if (res >= 0) { 2093 if (buf) POST_WRITE(buf, struct_msqid_ds_sz); 2094 } 2095} 2096#endif 2097 2098PRE_SYSCALL(semget)(long key, long nsems, long semflg) {} 2099 2100POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {} 2101 2102PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {} 2103 2104POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {} 2105 2106PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {} 2107 2108POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {} 2109 2110PRE_SYSCALL(semtimedop)(long semid, void *sops, long nsops, 2111 const void *timeout) { 2112 if (timeout) PRE_READ(timeout, struct_timespec_sz); 2113} 2114 2115POST_SYSCALL(semtimedop)(long res, long semid, void *sops, long nsops, 2116 const void *timeout) {} 2117 2118PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {} 2119 2120POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) { 2121 if (res >= 0) { 2122 if (shmaddr) 2123 POST_WRITE(shmaddr, 2124 __sanitizer::internal_strlen((const char *)shmaddr) + 1); 2125 } 2126} 2127 2128PRE_SYSCALL(shmget)(long key, long size, long flag) {} 2129 2130POST_SYSCALL(shmget)(long res, long key, long size, long flag) {} 2131 2132PRE_SYSCALL(shmdt)(void *shmaddr) {} 2133 2134POST_SYSCALL(shmdt)(long res, void *shmaddr) { 2135 if (res >= 0) { 2136 if (shmaddr) 2137 POST_WRITE(shmaddr, 2138 __sanitizer::internal_strlen((const char *)shmaddr) + 1); 2139 } 2140} 2141 2142PRE_SYSCALL(ipc)(long call, long first, long second, long third, void *ptr, 2143 long fifth) {} 2144 2145POST_SYSCALL(ipc)(long res, long call, long first, long second, long third, 2146 void *ptr, long fifth) {} 2147 2148#if !SANITIZER_ANDROID 2149PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {} 2150 2151POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) { 2152 if (res >= 0) { 2153 if (buf) POST_WRITE(buf, sizeof(__sanitizer_shmid_ds)); 2154 } 2155} 2156 2157PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) { 2158 if (name) 2159 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2160} 2161 2162POST_SYSCALL(mq_open)(long res, const void *name, long oflag, long mode, 2163 void *attr) { 2164 if (res >= 0) { 2165 if (attr) POST_WRITE(attr, struct_mq_attr_sz); 2166 } 2167} 2168 2169PRE_SYSCALL(mq_unlink)(const void *name) { 2170 if (name) 2171 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2172} 2173 2174POST_SYSCALL(mq_unlink)(long res, const void *name) {} 2175 2176PRE_SYSCALL(mq_timedsend)(long mqdes, const void *msg_ptr, long msg_len, 2177 long msg_prio, const void *abs_timeout) { 2178 if (msg_ptr) PRE_READ(msg_ptr, msg_len); 2179 if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz); 2180} 2181 2182POST_SYSCALL(mq_timedsend)(long res, long mqdes, const void *msg_ptr, 2183 long msg_len, long msg_prio, 2184 const void *abs_timeout) {} 2185 2186PRE_SYSCALL(mq_timedreceive)(long mqdes, void *msg_ptr, long msg_len, 2187 void *msg_prio, const void *abs_timeout) { 2188 if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz); 2189} 2190 2191POST_SYSCALL(mq_timedreceive)(long res, long mqdes, void *msg_ptr, long msg_len, 2192 int *msg_prio, const void *abs_timeout) { 2193 if (res >= 0) { 2194 if (msg_ptr) POST_WRITE(msg_ptr, res); 2195 if (msg_prio) POST_WRITE(msg_prio, sizeof(*msg_prio)); 2196 } 2197} 2198 2199PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) { 2200 if (notification) PRE_READ(notification, struct_sigevent_sz); 2201} 2202 2203POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {} 2204 2205PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) { 2206 if (mqstat) PRE_READ(mqstat, struct_mq_attr_sz); 2207} 2208 2209POST_SYSCALL(mq_getsetattr)(long res, long mqdes, const void *mqstat, 2210 void *omqstat) { 2211 if (res >= 0) { 2212 if (omqstat) POST_WRITE(omqstat, struct_mq_attr_sz); 2213 } 2214} 2215#endif // SANITIZER_ANDROID 2216 2217PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {} 2218 2219POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {} 2220 2221PRE_SYSCALL(pciconfig_read)(long bus, long dfn, long off, long len, void *buf) { 2222} 2223 2224POST_SYSCALL(pciconfig_read)(long res, long bus, long dfn, long off, long len, 2225 void *buf) {} 2226 2227PRE_SYSCALL(pciconfig_write)(long bus, long dfn, long off, long len, 2228 void *buf) {} 2229 2230POST_SYSCALL(pciconfig_write)(long res, long bus, long dfn, long off, long len, 2231 void *buf) {} 2232 2233PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) { 2234 if (specialfile) 2235 PRE_READ(specialfile, 2236 __sanitizer::internal_strlen((const char *)specialfile) + 1); 2237} 2238 2239POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {} 2240 2241PRE_SYSCALL(swapoff)(const void *specialfile) { 2242 if (specialfile) 2243 PRE_READ(specialfile, 2244 __sanitizer::internal_strlen((const char *)specialfile) + 1); 2245} 2246 2247POST_SYSCALL(swapoff)(long res, const void *specialfile) {} 2248 2249PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) { 2250 if (args) { 2251 if (args->name) PRE_READ(args->name, args->nlen * sizeof(*args->name)); 2252 if (args->newval) PRE_READ(args->name, args->newlen); 2253 } 2254} 2255 2256POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) { 2257 if (res >= 0) { 2258 if (args && args->oldval && args->oldlenp) { 2259 POST_WRITE(args->oldlenp, sizeof(*args->oldlenp)); 2260 POST_WRITE(args->oldval, *args->oldlenp); 2261 } 2262 } 2263} 2264 2265PRE_SYSCALL(sysinfo)(void *info) {} 2266 2267POST_SYSCALL(sysinfo)(long res, void *info) { 2268 if (res >= 0) { 2269 if (info) POST_WRITE(info, struct_sysinfo_sz); 2270 } 2271} 2272 2273PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {} 2274 2275POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {} 2276 2277PRE_SYSCALL(syslog)(long type, void *buf, long len) {} 2278 2279POST_SYSCALL(syslog)(long res, long type, void *buf, long len) { 2280 if (res >= 0) { 2281 if (buf) 2282 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 2283 } 2284} 2285 2286PRE_SYSCALL(uselib)(const void *library) { 2287 if (library) 2288 PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1); 2289} 2290 2291POST_SYSCALL(uselib)(long res, const void *library) {} 2292 2293PRE_SYSCALL(ni_syscall)() {} 2294 2295POST_SYSCALL(ni_syscall)(long res) {} 2296 2297PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) { 2298#if !SANITIZER_ANDROID && \ 2299 (defined(__i386) || defined(__x86_64) || defined(__mips64) || \ 2300 defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__)) 2301 if (data) { 2302 if (request == ptrace_setregs) { 2303 PRE_READ((void *)data, struct_user_regs_struct_sz); 2304 } else if (request == ptrace_setfpregs) { 2305 PRE_READ((void *)data, struct_user_fpregs_struct_sz); 2306 } else if (request == ptrace_setfpxregs) { 2307 PRE_READ((void *)data, struct_user_fpxregs_struct_sz); 2308 } else if (request == ptrace_setsiginfo) { 2309 PRE_READ((void *)data, siginfo_t_sz); 2310 } else if (request == ptrace_setregset) { 2311 __sanitizer_iovec *iov = (__sanitizer_iovec *)data; 2312 PRE_READ(iov->iov_base, iov->iov_len); 2313 } 2314 } 2315#endif 2316} 2317 2318POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) { 2319#if !SANITIZER_ANDROID && \ 2320 (defined(__i386) || defined(__x86_64) || defined(__mips64) || \ 2321 defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__)) 2322 if (res >= 0 && data) { 2323 // Note that this is different from the interceptor in 2324 // sanitizer_common_interceptors.inc. 2325 // PEEK* requests return resulting values through data pointer. 2326 if (request == ptrace_getregs) { 2327 POST_WRITE((void *)data, struct_user_regs_struct_sz); 2328 } else if (request == ptrace_getfpregs) { 2329 POST_WRITE((void *)data, struct_user_fpregs_struct_sz); 2330 } else if (request == ptrace_getfpxregs) { 2331 POST_WRITE((void *)data, struct_user_fpxregs_struct_sz); 2332 } else if (request == ptrace_getsiginfo) { 2333 POST_WRITE((void *)data, siginfo_t_sz); 2334 } else if (request == ptrace_getregset) { 2335 __sanitizer_iovec *iov = (__sanitizer_iovec *)data; 2336 POST_WRITE(iov->iov_base, iov->iov_len); 2337 } else if (request == ptrace_peekdata || request == ptrace_peektext || 2338 request == ptrace_peekuser) { 2339 POST_WRITE((void *)data, sizeof(void *)); 2340 } 2341 } 2342#endif 2343} 2344 2345PRE_SYSCALL(add_key)(const void *_type, const void *_description, 2346 const void *_payload, long plen, long destringid) { 2347 if (_type) 2348 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1); 2349 if (_description) 2350 PRE_READ(_description, 2351 __sanitizer::internal_strlen((const char *)_description) + 1); 2352} 2353 2354POST_SYSCALL(add_key)(long res, const void *_type, const void *_description, 2355 const void *_payload, long plen, long destringid) {} 2356 2357PRE_SYSCALL(request_key)(const void *_type, const void *_description, 2358 const void *_callout_info, long destringid) { 2359 if (_type) 2360 PRE_READ(_type, __sanitizer::internal_strlen((const char *)_type) + 1); 2361 if (_description) 2362 PRE_READ(_description, 2363 __sanitizer::internal_strlen((const char *)_description) + 1); 2364 if (_callout_info) 2365 PRE_READ(_callout_info, 2366 __sanitizer::internal_strlen((const char *)_callout_info) + 1); 2367} 2368 2369POST_SYSCALL(request_key)(long res, const void *_type, const void *_description, 2370 const void *_callout_info, long destringid) {} 2371 2372PRE_SYSCALL(keyctl)(long cmd, long arg2, long arg3, long arg4, long arg5) {} 2373 2374POST_SYSCALL(keyctl)(long res, long cmd, long arg2, long arg3, long arg4, 2375 long arg5) {} 2376 2377PRE_SYSCALL(ioprio_set)(long which, long who, long ioprio) {} 2378 2379POST_SYSCALL(ioprio_set)(long res, long which, long who, long ioprio) {} 2380 2381PRE_SYSCALL(ioprio_get)(long which, long who) {} 2382 2383POST_SYSCALL(ioprio_get)(long res, long which, long who) {} 2384 2385PRE_SYSCALL(set_mempolicy)(long mode, void *nmask, long maxnode) {} 2386 2387POST_SYSCALL(set_mempolicy)(long res, long mode, void *nmask, long maxnode) { 2388 if (res >= 0) { 2389 if (nmask) POST_WRITE(nmask, sizeof(long)); 2390 } 2391} 2392 2393PRE_SYSCALL(migrate_pages)(long pid, long maxnode, const void *from, 2394 const void *to) { 2395 if (from) PRE_READ(from, sizeof(long)); 2396 if (to) PRE_READ(to, sizeof(long)); 2397} 2398 2399POST_SYSCALL(migrate_pages)(long res, long pid, long maxnode, const void *from, 2400 const void *to) {} 2401 2402PRE_SYSCALL(move_pages)(long pid, long nr_pages, const void **pages, 2403 const int *nodes, int *status, long flags) { 2404 if (pages) PRE_READ(pages, nr_pages * sizeof(*pages)); 2405 if (nodes) PRE_READ(nodes, nr_pages * sizeof(*nodes)); 2406} 2407 2408POST_SYSCALL(move_pages)(long res, long pid, long nr_pages, const void **pages, 2409 const int *nodes, int *status, long flags) { 2410 if (res >= 0) { 2411 if (status) POST_WRITE(status, nr_pages * sizeof(*status)); 2412 } 2413} 2414 2415PRE_SYSCALL(mbind)(long start, long len, long mode, void *nmask, long maxnode, 2416 long flags) {} 2417 2418POST_SYSCALL(mbind)(long res, long start, long len, long mode, void *nmask, 2419 long maxnode, long flags) { 2420 if (res >= 0) { 2421 if (nmask) POST_WRITE(nmask, sizeof(long)); 2422 } 2423} 2424 2425PRE_SYSCALL(get_mempolicy)(void *policy, void *nmask, long maxnode, long addr, 2426 long flags) {} 2427 2428POST_SYSCALL(get_mempolicy)(long res, void *policy, void *nmask, long maxnode, 2429 long addr, long flags) { 2430 if (res >= 0) { 2431 if (policy) POST_WRITE(policy, sizeof(int)); 2432 if (nmask) POST_WRITE(nmask, sizeof(long)); 2433 } 2434} 2435 2436PRE_SYSCALL(inotify_init)() {} 2437 2438POST_SYSCALL(inotify_init)(long res) {} 2439 2440PRE_SYSCALL(inotify_init1)(long flags) {} 2441 2442POST_SYSCALL(inotify_init1)(long res, long flags) {} 2443 2444PRE_SYSCALL(inotify_add_watch)(long fd, const void *path, long mask) { 2445 if (path) 2446 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 2447} 2448 2449POST_SYSCALL(inotify_add_watch)(long res, long fd, const void *path, 2450 long mask) {} 2451 2452PRE_SYSCALL(inotify_rm_watch)(long fd, long wd) {} 2453 2454POST_SYSCALL(inotify_rm_watch)(long res, long fd, long wd) {} 2455 2456PRE_SYSCALL(spu_run)(long fd, void *unpc, void *ustatus) {} 2457 2458POST_SYSCALL(spu_run)(long res, long fd, unsigned *unpc, unsigned *ustatus) { 2459 if (res >= 0) { 2460 if (unpc) POST_WRITE(unpc, sizeof(*unpc)); 2461 if (ustatus) POST_WRITE(ustatus, sizeof(*ustatus)); 2462 } 2463} 2464 2465PRE_SYSCALL(spu_create)(const void *name, long flags, long mode, long fd) { 2466 if (name) 2467 PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1); 2468} 2469 2470POST_SYSCALL(spu_create)(long res, const void *name, long flags, long mode, 2471 long fd) {} 2472 2473PRE_SYSCALL(mknodat)(long dfd, const void *filename, long mode, long dev) { 2474 if (filename) 2475 PRE_READ(filename, 2476 __sanitizer::internal_strlen((const char *)filename) + 1); 2477} 2478 2479POST_SYSCALL(mknodat)(long res, long dfd, const void *filename, long mode, 2480 long dev) {} 2481 2482PRE_SYSCALL(mkdirat)(long dfd, const void *pathname, long mode) { 2483 if (pathname) 2484 PRE_READ(pathname, 2485 __sanitizer::internal_strlen((const char *)pathname) + 1); 2486} 2487 2488POST_SYSCALL(mkdirat)(long res, long dfd, const void *pathname, long mode) {} 2489 2490PRE_SYSCALL(unlinkat)(long dfd, const void *pathname, long flag) { 2491 if (pathname) 2492 PRE_READ(pathname, 2493 __sanitizer::internal_strlen((const char *)pathname) + 1); 2494} 2495 2496POST_SYSCALL(unlinkat)(long res, long dfd, const void *pathname, long flag) {} 2497 2498PRE_SYSCALL(symlinkat)(const void *oldname, long newdfd, const void *newname) { 2499 if (oldname) 2500 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2501 if (newname) 2502 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2503} 2504 2505POST_SYSCALL(symlinkat)(long res, const void *oldname, long newdfd, 2506 const void *newname) {} 2507 2508PRE_SYSCALL(linkat)(long olddfd, const void *oldname, long newdfd, 2509 const void *newname, long flags) { 2510 if (oldname) 2511 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2512 if (newname) 2513 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2514} 2515 2516POST_SYSCALL(linkat)(long res, long olddfd, const void *oldname, long newdfd, 2517 const void *newname, long flags) {} 2518 2519PRE_SYSCALL(renameat)(long olddfd, const void *oldname, long newdfd, 2520 const void *newname) { 2521 if (oldname) 2522 PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1); 2523 if (newname) 2524 PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1); 2525} 2526 2527POST_SYSCALL(renameat)(long res, long olddfd, const void *oldname, long newdfd, 2528 const void *newname) {} 2529 2530PRE_SYSCALL(futimesat)(long dfd, const void *filename, void *utimes) { 2531 if (filename) 2532 PRE_READ(filename, 2533 __sanitizer::internal_strlen((const char *)filename) + 1); 2534} 2535 2536POST_SYSCALL(futimesat)(long res, long dfd, const void *filename, 2537 void *utimes) { 2538 if (res >= 0) { 2539 if (utimes) POST_WRITE(utimes, timeval_sz); 2540 } 2541} 2542 2543PRE_SYSCALL(faccessat)(long dfd, const void *filename, long mode) { 2544 if (filename) 2545 PRE_READ(filename, 2546 __sanitizer::internal_strlen((const char *)filename) + 1); 2547} 2548 2549POST_SYSCALL(faccessat)(long res, long dfd, const void *filename, long mode) {} 2550 2551PRE_SYSCALL(fchmodat)(long dfd, const void *filename, long mode) { 2552 if (filename) 2553 PRE_READ(filename, 2554 __sanitizer::internal_strlen((const char *)filename) + 1); 2555} 2556 2557POST_SYSCALL(fchmodat)(long res, long dfd, const void *filename, long mode) {} 2558 2559PRE_SYSCALL(fchownat)(long dfd, const void *filename, long user, long group, 2560 long flag) { 2561 if (filename) 2562 PRE_READ(filename, 2563 __sanitizer::internal_strlen((const char *)filename) + 1); 2564} 2565 2566POST_SYSCALL(fchownat)(long res, long dfd, const void *filename, long user, 2567 long group, long flag) {} 2568 2569PRE_SYSCALL(openat)(long dfd, const void *filename, long flags, long mode) { 2570 if (filename) 2571 PRE_READ(filename, 2572 __sanitizer::internal_strlen((const char *)filename) + 1); 2573} 2574 2575POST_SYSCALL(openat)(long res, long dfd, const void *filename, long flags, 2576 long mode) {} 2577 2578PRE_SYSCALL(newfstatat)(long dfd, const void *filename, void *statbuf, 2579 long flag) { 2580 if (filename) 2581 PRE_READ(filename, 2582 __sanitizer::internal_strlen((const char *)filename) + 1); 2583} 2584 2585POST_SYSCALL(newfstatat)(long res, long dfd, const void *filename, 2586 void *statbuf, long flag) { 2587 if (res >= 0) { 2588 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz); 2589 } 2590} 2591 2592PRE_SYSCALL(fstatat64)(long dfd, const void *filename, void *statbuf, 2593 long flag) { 2594 if (filename) 2595 PRE_READ(filename, 2596 __sanitizer::internal_strlen((const char *)filename) + 1); 2597} 2598 2599POST_SYSCALL(fstatat64)(long res, long dfd, const void *filename, void *statbuf, 2600 long flag) { 2601 if (res >= 0) { 2602 if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz); 2603 } 2604} 2605 2606PRE_SYSCALL(readlinkat)(long dfd, const void *path, void *buf, long bufsiz) { 2607 if (path) 2608 PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1); 2609} 2610 2611POST_SYSCALL(readlinkat)(long res, long dfd, const void *path, void *buf, 2612 long bufsiz) { 2613 if (res >= 0) { 2614 if (buf) 2615 POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1); 2616 } 2617} 2618 2619PRE_SYSCALL(utimensat)(long dfd, const void *filename, void *utimes, 2620 long flags) { 2621 if (filename) 2622 PRE_READ(filename, 2623 __sanitizer::internal_strlen((const char *)filename) + 1); 2624} 2625 2626POST_SYSCALL(utimensat)(long res, long dfd, const void *filename, void *utimes, 2627 long flags) { 2628 if (res >= 0) { 2629 if (utimes) POST_WRITE(utimes, struct_timespec_sz); 2630 } 2631} 2632 2633PRE_SYSCALL(unshare)(long unshare_flags) {} 2634 2635POST_SYSCALL(unshare)(long res, long unshare_flags) {} 2636 2637PRE_SYSCALL(splice)(long fd_in, void *off_in, long fd_out, void *off_out, 2638 long len, long flags) {} 2639 2640POST_SYSCALL(splice)(long res, long fd_in, void *off_in, long fd_out, 2641 void *off_out, long len, long flags) { 2642 if (res >= 0) { 2643 if (off_in) POST_WRITE(off_in, sizeof(long long)); 2644 if (off_out) POST_WRITE(off_out, sizeof(long long)); 2645 } 2646} 2647 2648PRE_SYSCALL(vmsplice)(long fd, const __sanitizer_iovec *iov, long nr_segs, 2649 long flags) {} 2650 2651POST_SYSCALL(vmsplice)(long res, long fd, const __sanitizer_iovec *iov, 2652 long nr_segs, long flags) { 2653 if (res >= 0) { 2654 if (iov) kernel_read_iovec(iov, nr_segs, res); 2655 } 2656} 2657 2658PRE_SYSCALL(tee)(long fdin, long fdout, long len, long flags) {} 2659 2660POST_SYSCALL(tee)(long res, long fdin, long fdout, long len, long flags) {} 2661 2662PRE_SYSCALL(get_robust_list)(long pid, void *head_ptr, void *len_ptr) {} 2663 2664POST_SYSCALL(get_robust_list)(long res, long pid, void *head_ptr, 2665 void *len_ptr) {} 2666 2667PRE_SYSCALL(set_robust_list)(void *head, long len) {} 2668 2669POST_SYSCALL(set_robust_list)(long res, void *head, long len) {} 2670 2671PRE_SYSCALL(getcpu)(void *cpu, void *node, void *cache) {} 2672 2673POST_SYSCALL(getcpu)(long res, void *cpu, void *node, void *cache) { 2674 if (res >= 0) { 2675 if (cpu) POST_WRITE(cpu, sizeof(unsigned)); 2676 if (node) POST_WRITE(node, sizeof(unsigned)); 2677 // The third argument to this system call is nowadays unused. 2678 } 2679} 2680 2681PRE_SYSCALL(signalfd)(long ufd, void *user_mask, long sizemask) {} 2682 2683POST_SYSCALL(signalfd)(long res, long ufd, kernel_sigset_t *user_mask, 2684 long sizemask) { 2685 if (res >= 0) { 2686 if (user_mask) POST_WRITE(user_mask, sizemask); 2687 } 2688} 2689 2690PRE_SYSCALL(signalfd4)(long ufd, void *user_mask, long sizemask, long flags) {} 2691 2692POST_SYSCALL(signalfd4)(long res, long ufd, kernel_sigset_t *user_mask, 2693 long sizemask, long flags) { 2694 if (res >= 0) { 2695 if (user_mask) POST_WRITE(user_mask, sizemask); 2696 } 2697} 2698 2699PRE_SYSCALL(timerfd_create)(long clockid, long flags) {} 2700 2701POST_SYSCALL(timerfd_create)(long res, long clockid, long flags) {} 2702 2703PRE_SYSCALL(timerfd_settime)(long ufd, long flags, const void *utmr, 2704 void *otmr) { 2705 if (utmr) PRE_READ(utmr, struct_itimerspec_sz); 2706} 2707 2708POST_SYSCALL(timerfd_settime)(long res, long ufd, long flags, const void *utmr, 2709 void *otmr) { 2710 if (res >= 0) { 2711 if (otmr) POST_WRITE(otmr, struct_itimerspec_sz); 2712 } 2713} 2714 2715PRE_SYSCALL(timerfd_gettime)(long ufd, void *otmr) {} 2716 2717POST_SYSCALL(timerfd_gettime)(long res, long ufd, void *otmr) { 2718 if (res >= 0) { 2719 if (otmr) POST_WRITE(otmr, struct_itimerspec_sz); 2720 } 2721} 2722 2723PRE_SYSCALL(eventfd)(long count) {} 2724 2725POST_SYSCALL(eventfd)(long res, long count) {} 2726 2727PRE_SYSCALL(eventfd2)(long count, long flags) {} 2728 2729POST_SYSCALL(eventfd2)(long res, long count, long flags) {} 2730 2731PRE_SYSCALL(old_readdir)(long arg0, void *arg1, long arg2) {} 2732 2733POST_SYSCALL(old_readdir)(long res, long arg0, void *arg1, long arg2) { 2734 // Missing definition of 'struct old_linux_dirent'. 2735} 2736 2737PRE_SYSCALL(pselect6)(long arg0, __sanitizer___kernel_fd_set *arg1, 2738 __sanitizer___kernel_fd_set *arg2, 2739 __sanitizer___kernel_fd_set *arg3, void *arg4, 2740 void *arg5) {} 2741 2742POST_SYSCALL(pselect6)(long res, long arg0, __sanitizer___kernel_fd_set *arg1, 2743 __sanitizer___kernel_fd_set *arg2, 2744 __sanitizer___kernel_fd_set *arg3, void *arg4, 2745 void *arg5) { 2746 if (res >= 0) { 2747 if (arg1) POST_WRITE(arg1, sizeof(*arg1)); 2748 if (arg2) POST_WRITE(arg2, sizeof(*arg2)); 2749 if (arg3) POST_WRITE(arg3, sizeof(*arg3)); 2750 if (arg4) POST_WRITE(arg4, struct_timespec_sz); 2751 } 2752} 2753 2754PRE_SYSCALL(ppoll)(__sanitizer_pollfd *arg0, long arg1, void *arg2, 2755 const kernel_sigset_t *arg3, long arg4) { 2756 if (arg3) PRE_READ(arg3, arg4); 2757} 2758 2759POST_SYSCALL(ppoll)(long res, __sanitizer_pollfd *arg0, long arg1, void *arg2, 2760 const void *arg3, long arg4) { 2761 if (res >= 0) { 2762 if (arg0) POST_WRITE(arg0, sizeof(*arg0)); 2763 if (arg2) POST_WRITE(arg2, struct_timespec_sz); 2764 } 2765} 2766 2767PRE_SYSCALL(syncfs)(long fd) {} 2768 2769POST_SYSCALL(syncfs)(long res, long fd) {} 2770 2771PRE_SYSCALL(perf_event_open)(__sanitizer_perf_event_attr *attr_uptr, long pid, 2772 long cpu, long group_fd, long flags) { 2773 if (attr_uptr) PRE_READ(attr_uptr, attr_uptr->size); 2774} 2775 2776POST_SYSCALL(perf_event_open)(long res, __sanitizer_perf_event_attr *attr_uptr, 2777 long pid, long cpu, long group_fd, long flags) {} 2778 2779PRE_SYSCALL(mmap_pgoff)(long addr, long len, long prot, long flags, long fd, 2780 long pgoff) {} 2781 2782POST_SYSCALL(mmap_pgoff)(long res, long addr, long len, long prot, long flags, 2783 long fd, long pgoff) {} 2784 2785PRE_SYSCALL(old_mmap)(void *arg) {} 2786 2787POST_SYSCALL(old_mmap)(long res, void *arg) {} 2788 2789PRE_SYSCALL(name_to_handle_at)(long dfd, const void *name, void *handle, 2790 void *mnt_id, long flag) {} 2791 2792POST_SYSCALL(name_to_handle_at)(long res, long dfd, const void *name, 2793 void *handle, void *mnt_id, long flag) {} 2794 2795PRE_SYSCALL(open_by_handle_at)(long mountdirfd, void *handle, long flags) {} 2796 2797POST_SYSCALL(open_by_handle_at)(long res, long mountdirfd, void *handle, 2798 long flags) {} 2799 2800PRE_SYSCALL(setns)(long fd, long nstype) {} 2801 2802POST_SYSCALL(setns)(long res, long fd, long nstype) {} 2803 2804PRE_SYSCALL(process_vm_readv)(long pid, const __sanitizer_iovec *lvec, 2805 long liovcnt, const void *rvec, long riovcnt, 2806 long flags) {} 2807 2808POST_SYSCALL(process_vm_readv)(long res, long pid, 2809 const __sanitizer_iovec *lvec, long liovcnt, 2810 const void *rvec, long riovcnt, long flags) { 2811 if (res >= 0) { 2812 if (lvec) kernel_write_iovec(lvec, liovcnt, res); 2813 } 2814} 2815 2816PRE_SYSCALL(process_vm_writev)(long pid, const __sanitizer_iovec *lvec, 2817 long liovcnt, const void *rvec, long riovcnt, 2818 long flags) {} 2819 2820POST_SYSCALL(process_vm_writev)(long res, long pid, 2821 const __sanitizer_iovec *lvec, long liovcnt, 2822 const void *rvec, long riovcnt, long flags) { 2823 if (res >= 0) { 2824 if (lvec) kernel_read_iovec(lvec, liovcnt, res); 2825 } 2826} 2827 2828PRE_SYSCALL(fork)() { 2829 COMMON_SYSCALL_PRE_FORK(); 2830} 2831 2832POST_SYSCALL(fork)(long res) { 2833 COMMON_SYSCALL_POST_FORK(res); 2834} 2835 2836PRE_SYSCALL(vfork)() { 2837 COMMON_SYSCALL_PRE_FORK(); 2838} 2839 2840POST_SYSCALL(vfork)(long res) { 2841 COMMON_SYSCALL_POST_FORK(res); 2842} 2843 2844PRE_SYSCALL(sigaction)(long signum, const __sanitizer_kernel_sigaction_t *act, 2845 __sanitizer_kernel_sigaction_t *oldact) { 2846 if (act) { 2847 PRE_READ(&act->sigaction, sizeof(act->sigaction)); 2848 PRE_READ(&act->sa_flags, sizeof(act->sa_flags)); 2849 PRE_READ(&act->sa_mask, sizeof(act->sa_mask)); 2850 } 2851} 2852 2853POST_SYSCALL(sigaction)(long res, long signum, 2854 const __sanitizer_kernel_sigaction_t *act, 2855 __sanitizer_kernel_sigaction_t *oldact) { 2856 if (res >= 0 && oldact) POST_WRITE(oldact, sizeof(*oldact)); 2857} 2858 2859PRE_SYSCALL(rt_sigaction)(long signum, 2860 const __sanitizer_kernel_sigaction_t *act, 2861 __sanitizer_kernel_sigaction_t *oldact, SIZE_T sz) { 2862 if (act) { 2863 PRE_READ(&act->sigaction, sizeof(act->sigaction)); 2864 PRE_READ(&act->sa_flags, sizeof(act->sa_flags)); 2865 PRE_READ(&act->sa_mask, sz); 2866 } 2867} 2868 2869POST_SYSCALL(rt_sigaction)(long res, long signum, 2870 const __sanitizer_kernel_sigaction_t *act, 2871 __sanitizer_kernel_sigaction_t *oldact, SIZE_T sz) { 2872 if (res >= 0 && oldact) { 2873 SIZE_T oldact_sz = ((char *)&oldact->sa_mask) - ((char *)oldact) + sz; 2874 POST_WRITE(oldact, oldact_sz); 2875 } 2876} 2877} // extern "C" 2878 2879#undef PRE_SYSCALL 2880#undef PRE_READ 2881#undef PRE_WRITE 2882#undef POST_SYSCALL 2883#undef POST_READ 2884#undef POST_WRITE 2885 2886#endif // SANITIZER_LINUX 2887