blob: 008e57745cc5e0058302898e737288a5ab0d514e [file] [log] [blame]
//===-- sanitizer_common_syscalls.inc ---------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Common syscalls handlers for tools like AddressSanitizer,
// ThreadSanitizer, MemorySanitizer, etc.
//
// This file should be included into the tool's interceptor file,
// which has to define it's own macros:
// COMMON_SYSCALL_PRE_READ_RANGE
// Called in prehook for regions that will be read by the kernel and
// must be initialized.
// COMMON_SYSCALL_PRE_WRITE_RANGE
// Called in prehook for regions that will be written to by the kernel
// and must be addressable. The actual write range may be smaller than
// reported in the prehook. See POST_WRITE_RANGE.
// COMMON_SYSCALL_POST_READ_RANGE
// Called in posthook for regions that were read by the kernel. Does
// not make much sense.
// COMMON_SYSCALL_POST_WRITE_RANGE
// Called in posthook for regions that were written to by the kernel
// and are now initialized.
// COMMON_SYSCALL_ACQUIRE(addr)
// Acquire memory visibility from addr.
// COMMON_SYSCALL_RELEASE(addr)
// Release memory visibility to addr.
// COMMON_SYSCALL_FD_CLOSE(fd)
// Called before closing file descriptor fd.
// COMMON_SYSCALL_FD_ACQUIRE(fd)
// Acquire memory visibility from fd.
// COMMON_SYSCALL_FD_RELEASE(fd)
// Release memory visibility to fd.
// COMMON_SYSCALL_PRE_FORK()
// Called before fork syscall.
// COMMON_SYSCALL_POST_FORK(long res)
// Called after fork syscall.
//===----------------------------------------------------------------------===//
#include "sanitizer_platform.h"
#if SANITIZER_LINUX
#include "sanitizer_libc.h"
#define PRE_SYSCALL(name) \
SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_pre_impl_##name
#define PRE_READ(p, s) COMMON_SYSCALL_PRE_READ_RANGE(p, s)
#define PRE_WRITE(p, s) COMMON_SYSCALL_PRE_WRITE_RANGE(p, s)
#define POST_SYSCALL(name) \
SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_syscall_post_impl_##name
#define POST_READ(p, s) COMMON_SYSCALL_POST_READ_RANGE(p, s)
#define POST_WRITE(p, s) COMMON_SYSCALL_POST_WRITE_RANGE(p, s)
#ifndef COMMON_SYSCALL_ACQUIRE
# define COMMON_SYSCALL_ACQUIRE(addr) ((void)(addr))
#endif
#ifndef COMMON_SYSCALL_RELEASE
# define COMMON_SYSCALL_RELEASE(addr) ((void)(addr))
#endif
#ifndef COMMON_SYSCALL_FD_CLOSE
# define COMMON_SYSCALL_FD_CLOSE(fd) ((void)(fd))
#endif
#ifndef COMMON_SYSCALL_FD_ACQUIRE
# define COMMON_SYSCALL_FD_ACQUIRE(fd) ((void)(fd))
#endif
#ifndef COMMON_SYSCALL_FD_RELEASE
# define COMMON_SYSCALL_FD_RELEASE(fd) ((void)(fd))
#endif
#ifndef COMMON_SYSCALL_PRE_FORK
# define COMMON_SYSCALL_PRE_FORK() {}
#endif
#ifndef COMMON_SYSCALL_POST_FORK
# define COMMON_SYSCALL_POST_FORK(res) {}
#endif
// FIXME: do some kind of PRE_READ for all syscall arguments (int(s) and such).
extern "C" {
struct sanitizer_kernel_iovec {
void *iov_base;
unsigned long iov_len;
};
struct sanitizer_kernel_msghdr {
void *msg_name;
int msg_namelen;
struct sanitizer_kernel_iovec *msg_iov;
unsigned long msg_iovlen;
void *msg_control;
unsigned long msg_controllen;
unsigned msg_flags;
};
struct sanitizer_kernel_mmsghdr {
struct sanitizer_kernel_msghdr msg_hdr;
unsigned msg_len;
};
struct sanitizer_kernel_timespec {
long tv_sec;
long tv_nsec;
};
struct sanitizer_kernel_timeval {
long tv_sec;
long tv_usec;
};
struct sanitizer_kernel_rusage {
struct sanitizer_kernel_timeval ru_timeval[2];
long ru_long[14];
};
struct sanitizer_kernel_sockaddr {
unsigned short sa_family;
char sa_data[14];
};
// Real sigset size is always passed as a syscall argument.
// Declare it "void" to catch sizeof(kernel_sigset_t).
typedef void kernel_sigset_t;
static void kernel_write_iovec(const __sanitizer_iovec *iovec,
SIZE_T iovlen, SIZE_T maxlen) {
for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
POST_WRITE(iovec[i].iov_base, sz);
maxlen -= sz;
}
}
// This functions uses POST_READ, because it needs to run after syscall to know
// the real read range.
static void kernel_read_iovec(const __sanitizer_iovec *iovec,
SIZE_T iovlen, SIZE_T maxlen) {
POST_READ(iovec, sizeof(*iovec) * iovlen);
for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
POST_READ(iovec[i].iov_base, sz);
maxlen -= sz;
}
}
PRE_SYSCALL(recvmsg)(long sockfd, sanitizer_kernel_msghdr *msg, long flags) {
PRE_READ(msg, sizeof(*msg));
}
POST_SYSCALL(recvmsg)(long res, long sockfd, sanitizer_kernel_msghdr *msg,
long flags) {
if (res >= 0) {
if (msg) {
for (unsigned long i = 0; i < msg->msg_iovlen; ++i) {
POST_WRITE(msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len);
}
POST_WRITE(msg->msg_control, msg->msg_controllen);
}
}
}
PRE_SYSCALL(recvmmsg)(long fd, sanitizer_kernel_mmsghdr *msg, long vlen,
long flags, void *timeout) {
PRE_READ(msg, vlen * sizeof(*msg));
}
POST_SYSCALL(recvmmsg)(long res, long fd, sanitizer_kernel_mmsghdr *msg,
long vlen, long flags, void *timeout) {
if (res >= 0) {
if (msg) {
for (unsigned long i = 0; i < msg->msg_hdr.msg_iovlen; ++i) {
POST_WRITE(msg->msg_hdr.msg_iov[i].iov_base,
msg->msg_hdr.msg_iov[i].iov_len);
}
POST_WRITE(msg->msg_hdr.msg_control, msg->msg_hdr.msg_controllen);
POST_WRITE(&msg->msg_len, sizeof(msg->msg_len));
}
if (timeout) POST_WRITE(timeout, struct_timespec_sz);
}
}
PRE_SYSCALL(read)(long fd, void *buf, uptr count) {
if (buf) {
PRE_WRITE(buf, count);
}
}
POST_SYSCALL(read)(long res, long fd, void *buf, uptr count) {
if (res > 0 && buf) {
POST_WRITE(buf, res);
}
}
PRE_SYSCALL(time)(void *tloc) {}
POST_SYSCALL(time)(long res, void *tloc) {
if (res >= 0) {
if (tloc) POST_WRITE(tloc, sizeof(long));
}
}
PRE_SYSCALL(stime)(void *tptr) {}
POST_SYSCALL(stime)(long res, void *tptr) {
if (res >= 0) {
if (tptr) POST_WRITE(tptr, sizeof(long));
}
}
PRE_SYSCALL(gettimeofday)(void *tv, void *tz) {}
POST_SYSCALL(gettimeofday)(long res, void *tv, void *tz) {
if (res >= 0) {
if (tv) POST_WRITE(tv, timeval_sz);
if (tz) POST_WRITE(tz, struct_timezone_sz);
}
}
PRE_SYSCALL(settimeofday)(void *tv, void *tz) {}
POST_SYSCALL(settimeofday)(long res, void *tv, void *tz) {
if (res >= 0) {
if (tv) POST_WRITE(tv, timeval_sz);
if (tz) POST_WRITE(tz, struct_timezone_sz);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(adjtimex)(void *txc_p) {}
POST_SYSCALL(adjtimex)(long res, void *txc_p) {
if (res >= 0) {
if (txc_p) POST_WRITE(txc_p, struct_timex_sz);
}
}
#endif
PRE_SYSCALL(times)(void *tbuf) {}
POST_SYSCALL(times)(long res, void *tbuf) {
if (res >= 0) {
if (tbuf) POST_WRITE(tbuf, struct_tms_sz);
}
}
PRE_SYSCALL(gettid)() {}
POST_SYSCALL(gettid)(long res) {}
PRE_SYSCALL(nanosleep)(void *rqtp, void *rmtp) {}
POST_SYSCALL(nanosleep)(long res, void *rqtp, void *rmtp) {
if (res >= 0) {
if (rqtp) POST_WRITE(rqtp, struct_timespec_sz);
if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
}
}
PRE_SYSCALL(alarm)(long seconds) {}
POST_SYSCALL(alarm)(long res, long seconds) {}
PRE_SYSCALL(getpid)() {}
POST_SYSCALL(getpid)(long res) {}
PRE_SYSCALL(getppid)() {}
POST_SYSCALL(getppid)(long res) {}
PRE_SYSCALL(getuid)() {}
POST_SYSCALL(getuid)(long res) {}
PRE_SYSCALL(geteuid)() {}
POST_SYSCALL(geteuid)(long res) {}
PRE_SYSCALL(getgid)() {}
POST_SYSCALL(getgid)(long res) {}
PRE_SYSCALL(getegid)() {}
POST_SYSCALL(getegid)(long res) {}
PRE_SYSCALL(getresuid)(void *ruid, void *euid, void *suid) {}
POST_SYSCALL(getresuid)(long res, void *ruid, void *euid, void *suid) {
if (res >= 0) {
if (ruid) POST_WRITE(ruid, sizeof(unsigned));
if (euid) POST_WRITE(euid, sizeof(unsigned));
if (suid) POST_WRITE(suid, sizeof(unsigned));
}
}
PRE_SYSCALL(getresgid)(void *rgid, void *egid, void *sgid) {}
POST_SYSCALL(getresgid)(long res, void *rgid, void *egid, void *sgid) {
if (res >= 0) {
if (rgid) POST_WRITE(rgid, sizeof(unsigned));
if (egid) POST_WRITE(egid, sizeof(unsigned));
if (sgid) POST_WRITE(sgid, sizeof(unsigned));
}
}
PRE_SYSCALL(getpgid)(long pid) {}
POST_SYSCALL(getpgid)(long res, long pid) {}
PRE_SYSCALL(getpgrp)() {}
POST_SYSCALL(getpgrp)(long res) {}
PRE_SYSCALL(getsid)(long pid) {}
POST_SYSCALL(getsid)(long res, long pid) {}
PRE_SYSCALL(getgroups)(long gidsetsize, void *grouplist) {}
POST_SYSCALL(getgroups)(long res, long gidsetsize,
__sanitizer___kernel_gid_t *grouplist) {
if (res >= 0) {
if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
}
}
PRE_SYSCALL(setregid)(long rgid, long egid) {}
POST_SYSCALL(setregid)(long res, long rgid, long egid) {}
PRE_SYSCALL(setgid)(long gid) {}
POST_SYSCALL(setgid)(long res, long gid) {}
PRE_SYSCALL(setreuid)(long ruid, long euid) {}
POST_SYSCALL(setreuid)(long res, long ruid, long euid) {}
PRE_SYSCALL(setuid)(long uid) {}
POST_SYSCALL(setuid)(long res, long uid) {}
PRE_SYSCALL(setresuid)(long ruid, long euid, long suid) {}
POST_SYSCALL(setresuid)(long res, long ruid, long euid, long suid) {}
PRE_SYSCALL(setresgid)(long rgid, long egid, long sgid) {}
POST_SYSCALL(setresgid)(long res, long rgid, long egid, long sgid) {}
PRE_SYSCALL(setfsuid)(long uid) {}
POST_SYSCALL(setfsuid)(long res, long uid) {}
PRE_SYSCALL(setfsgid)(long gid) {}
POST_SYSCALL(setfsgid)(long res, long gid) {}
PRE_SYSCALL(setpgid)(long pid, long pgid) {}
POST_SYSCALL(setpgid)(long res, long pid, long pgid) {}
PRE_SYSCALL(setsid)() {}
POST_SYSCALL(setsid)(long res) {}
PRE_SYSCALL(setgroups)(long gidsetsize, __sanitizer___kernel_gid_t *grouplist) {
if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
}
POST_SYSCALL(setgroups)(long res, long gidsetsize,
__sanitizer___kernel_gid_t *grouplist) {}
PRE_SYSCALL(acct)(const void *name) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(acct)(long res, const void *name) {}
PRE_SYSCALL(capget)(void *header, void *dataptr) {
if (header) PRE_READ(header, __user_cap_header_struct_sz);
}
POST_SYSCALL(capget)(long res, void *header, void *dataptr) {
if (res >= 0)
if (dataptr) POST_WRITE(dataptr, __user_cap_data_struct_sz);
}
PRE_SYSCALL(capset)(void *header, const void *data) {
if (header) PRE_READ(header, __user_cap_header_struct_sz);
if (data) PRE_READ(data, __user_cap_data_struct_sz);
}
POST_SYSCALL(capset)(long res, void *header, const void *data) {}
PRE_SYSCALL(personality)(long personality) {}
POST_SYSCALL(personality)(long res, long personality) {}
PRE_SYSCALL(sigpending)(void *set) {}
POST_SYSCALL(sigpending)(long res, void *set) {
if (res >= 0) {
if (set) POST_WRITE(set, old_sigset_t_sz);
}
}
PRE_SYSCALL(sigprocmask)(long how, void *set, void *oset) {}
POST_SYSCALL(sigprocmask)(long res, long how, void *set, void *oset) {
if (res >= 0) {
if (set) POST_WRITE(set, old_sigset_t_sz);
if (oset) POST_WRITE(oset, old_sigset_t_sz);
}
}
PRE_SYSCALL(getitimer)(long which, void *value) {}
POST_SYSCALL(getitimer)(long res, long which, void *value) {
if (res >= 0) {
if (value) POST_WRITE(value, struct_itimerval_sz);
}
}
PRE_SYSCALL(setitimer)(long which, void *value, void *ovalue) {}
POST_SYSCALL(setitimer)(long res, long which, void *value, void *ovalue) {
if (res >= 0) {
if (value) POST_WRITE(value, struct_itimerval_sz);
if (ovalue) POST_WRITE(ovalue, struct_itimerval_sz);
}
}
PRE_SYSCALL(timer_create)(long which_clock, void *timer_event_spec,
void *created_timer_id) {}
POST_SYSCALL(timer_create)(long res, long which_clock, void *timer_event_spec,
void *created_timer_id) {
if (res >= 0) {
if (timer_event_spec) POST_WRITE(timer_event_spec, struct_sigevent_sz);
if (created_timer_id) POST_WRITE(created_timer_id, sizeof(long));
}
}
PRE_SYSCALL(timer_gettime)(long timer_id, void *setting) {}
POST_SYSCALL(timer_gettime)(long res, long timer_id, void *setting) {
if (res >= 0) {
if (setting) POST_WRITE(setting, struct_itimerspec_sz);
}
}
PRE_SYSCALL(timer_getoverrun)(long timer_id) {}
POST_SYSCALL(timer_getoverrun)(long res, long timer_id) {}
PRE_SYSCALL(timer_settime)(long timer_id, long flags, const void *new_setting,
void *old_setting) {
if (new_setting) PRE_READ(new_setting, struct_itimerspec_sz);
}
POST_SYSCALL(timer_settime)(long res, long timer_id, long flags,
const void *new_setting, void *old_setting) {
if (res >= 0) {
if (old_setting) POST_WRITE(old_setting, struct_itimerspec_sz);
}
}
PRE_SYSCALL(timer_delete)(long timer_id) {}
POST_SYSCALL(timer_delete)(long res, long timer_id) {}
PRE_SYSCALL(clock_settime)(long which_clock, const void *tp) {
if (tp) PRE_READ(tp, struct_timespec_sz);
}
POST_SYSCALL(clock_settime)(long res, long which_clock, const void *tp) {}
PRE_SYSCALL(clock_gettime)(long which_clock, void *tp) {}
POST_SYSCALL(clock_gettime)(long res, long which_clock, void *tp) {
if (res >= 0) {
if (tp) POST_WRITE(tp, struct_timespec_sz);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(clock_adjtime)(long which_clock, void *tx) {}
POST_SYSCALL(clock_adjtime)(long res, long which_clock, void *tx) {
if (res >= 0) {
if (tx) POST_WRITE(tx, struct_timex_sz);
}
}
#endif
PRE_SYSCALL(clock_getres)(long which_clock, void *tp) {}
POST_SYSCALL(clock_getres)(long res, long which_clock, void *tp) {
if (res >= 0) {
if (tp) POST_WRITE(tp, struct_timespec_sz);
}
}
PRE_SYSCALL(clock_nanosleep)(long which_clock, long flags, const void *rqtp,
void *rmtp) {
if (rqtp) PRE_READ(rqtp, struct_timespec_sz);
}
POST_SYSCALL(clock_nanosleep)(long res, long which_clock, long flags,
const void *rqtp, void *rmtp) {
if (res >= 0) {
if (rmtp) POST_WRITE(rmtp, struct_timespec_sz);
}
}
PRE_SYSCALL(nice)(long increment) {}
POST_SYSCALL(nice)(long res, long increment) {}
PRE_SYSCALL(sched_setscheduler)(long pid, long policy, void *param) {}
POST_SYSCALL(sched_setscheduler)(long res, long pid, long policy, void *param) {
if (res >= 0) {
if (param) POST_WRITE(param, struct_sched_param_sz);
}
}
PRE_SYSCALL(sched_setparam)(long pid, void *param) {
if (param) PRE_READ(param, struct_sched_param_sz);
}
POST_SYSCALL(sched_setparam)(long res, long pid, void *param) {}
PRE_SYSCALL(sched_getscheduler)(long pid) {}
POST_SYSCALL(sched_getscheduler)(long res, long pid) {}
PRE_SYSCALL(sched_getparam)(long pid, void *param) {}
POST_SYSCALL(sched_getparam)(long res, long pid, void *param) {
if (res >= 0) {
if (param) POST_WRITE(param, struct_sched_param_sz);
}
}
PRE_SYSCALL(sched_setaffinity)(long pid, long len, void *user_mask_ptr) {
if (user_mask_ptr) PRE_READ(user_mask_ptr, len);
}
POST_SYSCALL(sched_setaffinity)(long res, long pid, long len,
void *user_mask_ptr) {}
PRE_SYSCALL(sched_getaffinity)(long pid, long len, void *user_mask_ptr) {}
POST_SYSCALL(sched_getaffinity)(long res, long pid, long len,
void *user_mask_ptr) {
if (res >= 0) {
if (user_mask_ptr) POST_WRITE(user_mask_ptr, len);
}
}
PRE_SYSCALL(sched_yield)() {}
POST_SYSCALL(sched_yield)(long res) {}
PRE_SYSCALL(sched_get_priority_max)(long policy) {}
POST_SYSCALL(sched_get_priority_max)(long res, long policy) {}
PRE_SYSCALL(sched_get_priority_min)(long policy) {}
POST_SYSCALL(sched_get_priority_min)(long res, long policy) {}
PRE_SYSCALL(sched_rr_get_interval)(long pid, void *interval) {}
POST_SYSCALL(sched_rr_get_interval)(long res, long pid, void *interval) {
if (res >= 0) {
if (interval) POST_WRITE(interval, struct_timespec_sz);
}
}
PRE_SYSCALL(setpriority)(long which, long who, long niceval) {}
POST_SYSCALL(setpriority)(long res, long which, long who, long niceval) {}
PRE_SYSCALL(getpriority)(long which, long who) {}
POST_SYSCALL(getpriority)(long res, long which, long who) {}
PRE_SYSCALL(shutdown)(long arg0, long arg1) {}
POST_SYSCALL(shutdown)(long res, long arg0, long arg1) {}
PRE_SYSCALL(reboot)(long magic1, long magic2, long cmd, void *arg) {}
POST_SYSCALL(reboot)(long res, long magic1, long magic2, long cmd, void *arg) {}
PRE_SYSCALL(restart_syscall)() {}
POST_SYSCALL(restart_syscall)(long res) {}
PRE_SYSCALL(kexec_load)(long entry, long nr_segments, void *segments,
long flags) {}
POST_SYSCALL(kexec_load)(long res, long entry, long nr_segments, void *segments,
long flags) {
if (res >= 0) {
if (segments) POST_WRITE(segments, struct_kexec_segment_sz);
}
}
PRE_SYSCALL(exit)(long error_code) {}
POST_SYSCALL(exit)(long res, long error_code) {}
PRE_SYSCALL(exit_group)(long error_code) {}
POST_SYSCALL(exit_group)(long res, long error_code) {}
PRE_SYSCALL(wait4)(long pid, void *stat_addr, long options, void *ru) {}
POST_SYSCALL(wait4)(long res, long pid, void *stat_addr, long options,
void *ru) {
if (res >= 0) {
if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
if (ru) POST_WRITE(ru, struct_rusage_sz);
}
}
PRE_SYSCALL(waitid)(long which, long pid, void *infop, long options, void *ru) {
}
POST_SYSCALL(waitid)(long res, long which, long pid, void *infop, long options,
void *ru) {
if (res >= 0) {
if (infop) POST_WRITE(infop, siginfo_t_sz);
if (ru) POST_WRITE(ru, struct_rusage_sz);
}
}
PRE_SYSCALL(waitpid)(long pid, void *stat_addr, long options) {}
POST_SYSCALL(waitpid)(long res, long pid, void *stat_addr, long options) {
if (res >= 0) {
if (stat_addr) POST_WRITE(stat_addr, sizeof(int));
}
}
PRE_SYSCALL(set_tid_address)(void *tidptr) {}
POST_SYSCALL(set_tid_address)(long res, void *tidptr) {
if (res >= 0) {
if (tidptr) POST_WRITE(tidptr, sizeof(int));
}
}
PRE_SYSCALL(init_module)(void *umod, long len, const void *uargs) {
if (uargs)
PRE_READ(uargs, __sanitizer::internal_strlen((const char *)uargs) + 1);
}
POST_SYSCALL(init_module)(long res, void *umod, long len, const void *uargs) {}
PRE_SYSCALL(delete_module)(const void *name_user, long flags) {
if (name_user)
PRE_READ(name_user,
__sanitizer::internal_strlen((const char *)name_user) + 1);
}
POST_SYSCALL(delete_module)(long res, const void *name_user, long flags) {}
PRE_SYSCALL(rt_sigprocmask)(long how, void *set, void *oset, long sigsetsize) {}
POST_SYSCALL(rt_sigprocmask)(long res, long how, kernel_sigset_t *set,
kernel_sigset_t *oset, long sigsetsize) {
if (res >= 0) {
if (set) POST_WRITE(set, sigsetsize);
if (oset) POST_WRITE(oset, sigsetsize);
}
}
PRE_SYSCALL(rt_sigpending)(void *set, long sigsetsize) {}
POST_SYSCALL(rt_sigpending)(long res, kernel_sigset_t *set, long sigsetsize) {
if (res >= 0) {
if (set) POST_WRITE(set, sigsetsize);
}
}
PRE_SYSCALL(rt_sigtimedwait)(const kernel_sigset_t *uthese, void *uinfo,
const void *uts, long sigsetsize) {
if (uthese) PRE_READ(uthese, sigsetsize);
if (uts) PRE_READ(uts, struct_timespec_sz);
}
POST_SYSCALL(rt_sigtimedwait)(long res, const void *uthese, void *uinfo,
const void *uts, long sigsetsize) {
if (res >= 0) {
if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
}
}
PRE_SYSCALL(rt_tgsigqueueinfo)(long tgid, long pid, long sig, void *uinfo) {}
POST_SYSCALL(rt_tgsigqueueinfo)(long res, long tgid, long pid, long sig,
void *uinfo) {
if (res >= 0) {
if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
}
}
PRE_SYSCALL(kill)(long pid, long sig) {}
POST_SYSCALL(kill)(long res, long pid, long sig) {}
PRE_SYSCALL(tgkill)(long tgid, long pid, long sig) {}
POST_SYSCALL(tgkill)(long res, long tgid, long pid, long sig) {}
PRE_SYSCALL(tkill)(long pid, long sig) {}
POST_SYSCALL(tkill)(long res, long pid, long sig) {}
PRE_SYSCALL(rt_sigqueueinfo)(long pid, long sig, void *uinfo) {}
POST_SYSCALL(rt_sigqueueinfo)(long res, long pid, long sig, void *uinfo) {
if (res >= 0) {
if (uinfo) POST_WRITE(uinfo, siginfo_t_sz);
}
}
PRE_SYSCALL(sgetmask)() {}
POST_SYSCALL(sgetmask)(long res) {}
PRE_SYSCALL(ssetmask)(long newmask) {}
POST_SYSCALL(ssetmask)(long res, long newmask) {}
PRE_SYSCALL(signal)(long sig, long handler) {}
POST_SYSCALL(signal)(long res, long sig, long handler) {}
PRE_SYSCALL(pause)() {}
POST_SYSCALL(pause)(long res) {}
PRE_SYSCALL(sync)() {}
POST_SYSCALL(sync)(long res) {}
PRE_SYSCALL(fsync)(long fd) {}
POST_SYSCALL(fsync)(long res, long fd) {}
PRE_SYSCALL(fdatasync)(long fd) {}
POST_SYSCALL(fdatasync)(long res, long fd) {}
PRE_SYSCALL(bdflush)(long func, long data) {}
POST_SYSCALL(bdflush)(long res, long func, long data) {}
PRE_SYSCALL(mount)(void *dev_name, void *dir_name, void *type, long flags,
void *data) {}
POST_SYSCALL(mount)(long res, void *dev_name, void *dir_name, void *type,
long flags, void *data) {
if (res >= 0) {
if (dev_name)
POST_WRITE(dev_name,
__sanitizer::internal_strlen((const char *)dev_name) + 1);
if (dir_name)
POST_WRITE(dir_name,
__sanitizer::internal_strlen((const char *)dir_name) + 1);
if (type)
POST_WRITE(type, __sanitizer::internal_strlen((const char *)type) + 1);
}
}
PRE_SYSCALL(umount)(void *name, long flags) {}
POST_SYSCALL(umount)(long res, void *name, long flags) {
if (res >= 0) {
if (name)
POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
}
PRE_SYSCALL(oldumount)(void *name) {}
POST_SYSCALL(oldumount)(long res, void *name) {
if (res >= 0) {
if (name)
POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
}
PRE_SYSCALL(truncate)(const void *path, long length) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(truncate)(long res, const void *path, long length) {}
PRE_SYSCALL(ftruncate)(long fd, long length) {}
POST_SYSCALL(ftruncate)(long res, long fd, long length) {}
PRE_SYSCALL(stat)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(stat)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(statfs)(const void *path, void *buf) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(statfs)(long res, const void *path, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, struct_statfs_sz);
}
}
PRE_SYSCALL(statfs64)(const void *path, long sz, void *buf) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(statfs64)(long res, const void *path, long sz, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, struct_statfs64_sz);
}
}
PRE_SYSCALL(fstatfs)(long fd, void *buf) {}
POST_SYSCALL(fstatfs)(long res, long fd, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, struct_statfs_sz);
}
}
PRE_SYSCALL(fstatfs64)(long fd, long sz, void *buf) {}
POST_SYSCALL(fstatfs64)(long res, long fd, long sz, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, struct_statfs64_sz);
}
}
#endif // !SANITIZER_ANDROID
PRE_SYSCALL(lstat)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(lstat)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
}
}
PRE_SYSCALL(fstat)(long fd, void *statbuf) {}
POST_SYSCALL(fstat)(long res, long fd, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct___old_kernel_stat_sz);
}
}
PRE_SYSCALL(newstat)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(newstat)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
}
}
PRE_SYSCALL(newlstat)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(newlstat)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
}
}
PRE_SYSCALL(newfstat)(long fd, void *statbuf) {}
POST_SYSCALL(newfstat)(long res, long fd, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat_sz);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(ustat)(long dev, void *ubuf) {}
POST_SYSCALL(ustat)(long res, long dev, void *ubuf) {
if (res >= 0) {
if (ubuf) POST_WRITE(ubuf, struct_ustat_sz);
}
}
#endif // !SANITIZER_ANDROID
PRE_SYSCALL(stat64)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(stat64)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
}
}
PRE_SYSCALL(fstat64)(long fd, void *statbuf) {}
POST_SYSCALL(fstat64)(long res, long fd, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
}
}
PRE_SYSCALL(lstat64)(const void *filename, void *statbuf) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(lstat64)(long res, const void *filename, void *statbuf) {
if (res >= 0) {
if (statbuf) POST_WRITE(statbuf, struct_kernel_stat64_sz);
}
}
PRE_SYSCALL(setxattr)(const void *path, const void *name, const void *value,
long size, long flags) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
if (value) PRE_READ(value, size);
}
POST_SYSCALL(setxattr)(long res, const void *path, const void *name,
const void *value, long size, long flags) {}
PRE_SYSCALL(lsetxattr)(const void *path, const void *name, const void *value,
long size, long flags) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
if (value) PRE_READ(value, size);
}
POST_SYSCALL(lsetxattr)(long res, const void *path, const void *name,
const void *value, long size, long flags) {}
PRE_SYSCALL(fsetxattr)(long fd, const void *name, const void *value, long size,
long flags) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
if (value) PRE_READ(value, size);
}
POST_SYSCALL(fsetxattr)(long res, long fd, const void *name, const void *value,
long size, long flags) {}
PRE_SYSCALL(getxattr)(const void *path, const void *name, void *value,
long size) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(getxattr)(long res, const void *path, const void *name,
void *value, long size) {
if (size && res > 0) {
if (value) POST_WRITE(value, res);
}
}
PRE_SYSCALL(lgetxattr)(const void *path, const void *name, void *value,
long size) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(lgetxattr)(long res, const void *path, const void *name,
void *value, long size) {
if (size && res > 0) {
if (value) POST_WRITE(value, res);
}
}
PRE_SYSCALL(fgetxattr)(long fd, const void *name, void *value, long size) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(fgetxattr)(long res, long fd, const void *name, void *value,
long size) {
if (size && res > 0) {
if (value) POST_WRITE(value, res);
}
}
PRE_SYSCALL(listxattr)(const void *path, void *list, long size) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(listxattr)(long res, const void *path, void *list, long size) {
if (size && res > 0) {
if (list) POST_WRITE(list, res);
}
}
PRE_SYSCALL(llistxattr)(const void *path, void *list, long size) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(llistxattr)(long res, const void *path, void *list, long size) {
if (size && res > 0) {
if (list) POST_WRITE(list, res);
}
}
PRE_SYSCALL(flistxattr)(long fd, void *list, long size) {}
POST_SYSCALL(flistxattr)(long res, long fd, void *list, long size) {
if (size && res > 0) {
if (list) POST_WRITE(list, res);
}
}
PRE_SYSCALL(removexattr)(const void *path, const void *name) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(removexattr)(long res, const void *path, const void *name) {}
PRE_SYSCALL(lremovexattr)(const void *path, const void *name) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(lremovexattr)(long res, const void *path, const void *name) {}
PRE_SYSCALL(fremovexattr)(long fd, const void *name) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(fremovexattr)(long res, long fd, const void *name) {}
PRE_SYSCALL(brk)(long brk) {}
POST_SYSCALL(brk)(long res, long brk) {}
PRE_SYSCALL(mprotect)(long start, long len, long prot) {}
POST_SYSCALL(mprotect)(long res, long start, long len, long prot) {}
PRE_SYSCALL(mremap)(long addr, long old_len, long new_len, long flags,
long new_addr) {}
POST_SYSCALL(mremap)(long res, long addr, long old_len, long new_len,
long flags, long new_addr) {}
PRE_SYSCALL(remap_file_pages)(long start, long size, long prot, long pgoff,
long flags) {}
POST_SYSCALL(remap_file_pages)(long res, long start, long size, long prot,
long pgoff, long flags) {}
PRE_SYSCALL(msync)(long start, long len, long flags) {}
POST_SYSCALL(msync)(long res, long start, long len, long flags) {}
PRE_SYSCALL(munmap)(long addr, long len) {}
POST_SYSCALL(munmap)(long res, long addr, long len) {}
PRE_SYSCALL(mlock)(long start, long len) {}
POST_SYSCALL(mlock)(long res, long start, long len) {}
PRE_SYSCALL(munlock)(long start, long len) {}
POST_SYSCALL(munlock)(long res, long start, long len) {}
PRE_SYSCALL(mlockall)(long flags) {}
POST_SYSCALL(mlockall)(long res, long flags) {}
PRE_SYSCALL(munlockall)() {}
POST_SYSCALL(munlockall)(long res) {}
PRE_SYSCALL(madvise)(long start, long len, long behavior) {}
POST_SYSCALL(madvise)(long res, long start, long len, long behavior) {}
PRE_SYSCALL(mincore)(long start, long len, void *vec) {}
POST_SYSCALL(mincore)(long res, long start, long len, void *vec) {
if (res >= 0) {
if (vec) {
POST_WRITE(vec, (len + GetPageSizeCached() - 1) / GetPageSizeCached());
}
}
}
PRE_SYSCALL(pivot_root)(const void *new_root, const void *put_old) {
if (new_root)
PRE_READ(new_root,
__sanitizer::internal_strlen((const char *)new_root) + 1);
if (put_old)
PRE_READ(put_old, __sanitizer::internal_strlen((const char *)put_old) + 1);
}
POST_SYSCALL(pivot_root)(long res, const void *new_root, const void *put_old) {}
PRE_SYSCALL(chroot)(const void *filename) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(chroot)(long res, const void *filename) {}
PRE_SYSCALL(mknod)(const void *filename, long mode, long dev) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(mknod)(long res, const void *filename, long mode, long dev) {}
PRE_SYSCALL(link)(const void *oldname, const void *newname) {
if (oldname)
PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
if (newname)
PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
}
POST_SYSCALL(link)(long res, const void *oldname, const void *newname) {}
PRE_SYSCALL(symlink)(const void *old, const void *new_) {
if (old) PRE_READ(old, __sanitizer::internal_strlen((const char *)old) + 1);
if (new_)
PRE_READ(new_, __sanitizer::internal_strlen((const char *)new_) + 1);
}
POST_SYSCALL(symlink)(long res, const void *old, const void *new_) {}
PRE_SYSCALL(unlink)(const void *pathname) {
if (pathname)
PRE_READ(pathname,
__sanitizer::internal_strlen((const char *)pathname) + 1);
}
POST_SYSCALL(unlink)(long res, const void *pathname) {}
PRE_SYSCALL(rename)(const void *oldname, const void *newname) {
if (oldname)
PRE_READ(oldname, __sanitizer::internal_strlen((const char *)oldname) + 1);
if (newname)
PRE_READ(newname, __sanitizer::internal_strlen((const char *)newname) + 1);
}
POST_SYSCALL(rename)(long res, const void *oldname, const void *newname) {}
PRE_SYSCALL(chmod)(const void *filename, long mode) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(chmod)(long res, const void *filename, long mode) {}
PRE_SYSCALL(fchmod)(long fd, long mode) {}
POST_SYSCALL(fchmod)(long res, long fd, long mode) {}
PRE_SYSCALL(fcntl)(long fd, long cmd, long arg) {}
POST_SYSCALL(fcntl)(long res, long fd, long cmd, long arg) {}
PRE_SYSCALL(fcntl64)(long fd, long cmd, long arg) {}
POST_SYSCALL(fcntl64)(long res, long fd, long cmd, long arg) {}
PRE_SYSCALL(pipe)(void *fildes) {}
POST_SYSCALL(pipe)(long res, void *fildes) {
if (res >= 0) {
if (fildes) POST_WRITE(fildes, sizeof(int));
}
}
PRE_SYSCALL(pipe2)(void *fildes, long flags) {}
POST_SYSCALL(pipe2)(long res, void *fildes, long flags) {
if (res >= 0) {
if (fildes) POST_WRITE(fildes, sizeof(int));
}
}
PRE_SYSCALL(dup)(long fildes) {}
POST_SYSCALL(dup)(long res, long fildes) {}
PRE_SYSCALL(dup2)(long oldfd, long newfd) {}
POST_SYSCALL(dup2)(long res, long oldfd, long newfd) {}
PRE_SYSCALL(dup3)(long oldfd, long newfd, long flags) {}
POST_SYSCALL(dup3)(long res, long oldfd, long newfd, long flags) {}
PRE_SYSCALL(ioperm)(long from, long num, long on) {}
POST_SYSCALL(ioperm)(long res, long from, long num, long on) {}
PRE_SYSCALL(ioctl)(long fd, long cmd, long arg) {}
POST_SYSCALL(ioctl)(long res, long fd, long cmd, long arg) {}
PRE_SYSCALL(flock)(long fd, long cmd) {}
POST_SYSCALL(flock)(long res, long fd, long cmd) {}
PRE_SYSCALL(io_setup)(long nr_reqs, void **ctx) {
if (ctx) PRE_WRITE(ctx, sizeof(*ctx));
}
POST_SYSCALL(io_setup)(long res, long nr_reqs, void **ctx) {
if (res >= 0) {
if (ctx) POST_WRITE(ctx, sizeof(*ctx));
// (*ctx) is actually a pointer to a kernel mapped page, and there are
// people out there who are crazy enough to peek into that page's 32-byte
// header.
if (*ctx) POST_WRITE(*ctx, 32);
}
}
PRE_SYSCALL(io_destroy)(long ctx) {}
POST_SYSCALL(io_destroy)(long res, long ctx) {}
PRE_SYSCALL(io_getevents)(long ctx_id, long min_nr, long nr,
__sanitizer_io_event *ioevpp, void *timeout) {
if (timeout) PRE_READ(timeout, struct_timespec_sz);
}
POST_SYSCALL(io_getevents)(long res, long ctx_id, long min_nr, long nr,
__sanitizer_io_event *ioevpp, void *timeout) {
if (res >= 0) {
if (ioevpp) POST_WRITE(ioevpp, res * sizeof(*ioevpp));
if (timeout) POST_WRITE(timeout, struct_timespec_sz);
}
for (long i = 0; i < res; i++) {
// We synchronize io_submit -> io_getevents/io_cancel using the
// user-provided data context. Data is not necessary a pointer, it can be
// an int, 0 or whatever; acquire/release will correctly handle this.
// This scheme can lead to false negatives, e.g. when all operations
// synchronize on 0. But there does not seem to be a better solution
// (except wrapping all operations in own context, which is unreliable).
// We can not reliably extract fildes in io_getevents.
COMMON_SYSCALL_ACQUIRE((void*)ioevpp[i].data);
}
}
PRE_SYSCALL(io_submit)(long ctx_id, long nr, __sanitizer_iocb **iocbpp) {
for (long i = 0; i < nr; ++i) {
uptr op = iocbpp[i]->aio_lio_opcode;
void *data = (void*)iocbpp[i]->aio_data;
void *buf = (void*)iocbpp[i]->aio_buf;
uptr len = (uptr)iocbpp[i]->aio_nbytes;
if (op == iocb_cmd_pwrite && buf && len) {
PRE_READ(buf, len);
} else if (op == iocb_cmd_pread && buf && len) {
POST_WRITE(buf, len);
} else if (op == iocb_cmd_pwritev) {
__sanitizer_iovec *iovec = (__sanitizer_iovec*)buf;
for (uptr v = 0; v < len; v++)
PRE_READ(iovec[v].iov_base, iovec[v].iov_len);
} else if (op == iocb_cmd_preadv) {
__sanitizer_iovec *iovec = (__sanitizer_iovec*)buf;
for (uptr v = 0; v < len; v++)
POST_WRITE(iovec[v].iov_base, iovec[v].iov_len);
}
// See comment in io_getevents.
COMMON_SYSCALL_RELEASE(data);
}
}
POST_SYSCALL(io_submit)(long res, long ctx_id, long nr,
__sanitizer_iocb **iocbpp) {}
PRE_SYSCALL(io_cancel)(long ctx_id, __sanitizer_iocb *iocb,
__sanitizer_io_event *result) {
}
POST_SYSCALL(io_cancel)(long res, long ctx_id, __sanitizer_iocb *iocb,
__sanitizer_io_event *result) {
if (res == 0) {
if (result) {
// See comment in io_getevents.
COMMON_SYSCALL_ACQUIRE((void*)result->data);
POST_WRITE(result, sizeof(*result));
}
if (iocb)
POST_WRITE(iocb, sizeof(*iocb));
}
}
PRE_SYSCALL(sendfile)(long out_fd, long in_fd, void *offset, long count) {}
POST_SYSCALL(sendfile)(long res, long out_fd, long in_fd,
__sanitizer___kernel_off_t *offset, long count) {
if (res >= 0) {
if (offset) POST_WRITE(offset, sizeof(*offset));
}
}
PRE_SYSCALL(sendfile64)(long out_fd, long in_fd, void *offset, long count) {}
POST_SYSCALL(sendfile64)(long res, long out_fd, long in_fd,
__sanitizer___kernel_loff_t *offset, long count) {
if (res >= 0) {
if (offset) POST_WRITE(offset, sizeof(*offset));
}
}
PRE_SYSCALL(readlink)(const void *path, void *buf, long bufsiz) {
if (path)
PRE_READ(path, __sanitizer::internal_strlen((const char *)path) + 1);
}
POST_SYSCALL(readlink)(long res, const void *path, void *buf, long bufsiz) {
if (res >= 0) {
if (buf)
POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
}
}
PRE_SYSCALL(creat)(const void *pathname, long mode) {
if (pathname)
PRE_READ(pathname,
__sanitizer::internal_strlen((const char *)pathname) + 1);
}
POST_SYSCALL(creat)(long res, const void *pathname, long mode) {}
PRE_SYSCALL(open)(const void *filename, long flags, long mode) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(open)(long res, const void *filename, long flags, long mode) {}
PRE_SYSCALL(close)(long fd) {
COMMON_SYSCALL_FD_CLOSE((int)fd);
}
POST_SYSCALL(close)(long res, long fd) {}
PRE_SYSCALL(access)(const void *filename, long mode) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(access)(long res, const void *filename, long mode) {}
PRE_SYSCALL(vhangup)() {}
POST_SYSCALL(vhangup)(long res) {}
PRE_SYSCALL(chown)(const void *filename, long user, long group) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(chown)(long res, const void *filename, long user, long group) {}
PRE_SYSCALL(lchown)(const void *filename, long user, long group) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(lchown)(long res, const void *filename, long user, long group) {}
PRE_SYSCALL(fchown)(long fd, long user, long group) {}
POST_SYSCALL(fchown)(long res, long fd, long user, long group) {}
#if SANITIZER_USES_UID16_SYSCALLS
PRE_SYSCALL(chown16)(const void *filename, long user, long group) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(chown16)(long res, const void *filename, long user, long group) {}
PRE_SYSCALL(lchown16)(const void *filename, long user, long group) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(lchown16)(long res, const void *filename, long user, long group) {}
PRE_SYSCALL(fchown16)(long fd, long user, long group) {}
POST_SYSCALL(fchown16)(long res, long fd, long user, long group) {}
PRE_SYSCALL(setregid16)(long rgid, long egid) {}
POST_SYSCALL(setregid16)(long res, long rgid, long egid) {}
PRE_SYSCALL(setgid16)(long gid) {}
POST_SYSCALL(setgid16)(long res, long gid) {}
PRE_SYSCALL(setreuid16)(long ruid, long euid) {}
POST_SYSCALL(setreuid16)(long res, long ruid, long euid) {}
PRE_SYSCALL(setuid16)(long uid) {}
POST_SYSCALL(setuid16)(long res, long uid) {}
PRE_SYSCALL(setresuid16)(long ruid, long euid, long suid) {}
POST_SYSCALL(setresuid16)(long res, long ruid, long euid, long suid) {}
PRE_SYSCALL(getresuid16)(void *ruid, void *euid, void *suid) {}
POST_SYSCALL(getresuid16)(long res, __sanitizer___kernel_old_uid_t *ruid,
__sanitizer___kernel_old_uid_t *euid,
__sanitizer___kernel_old_uid_t *suid) {
if (res >= 0) {
if (ruid) POST_WRITE(ruid, sizeof(*ruid));
if (euid) POST_WRITE(euid, sizeof(*euid));
if (suid) POST_WRITE(suid, sizeof(*suid));
}
}
PRE_SYSCALL(setresgid16)(long rgid, long egid, long sgid) {}
POST_SYSCALL(setresgid16)(long res, long rgid, long egid, long sgid) {}
PRE_SYSCALL(getresgid16)(void *rgid, void *egid, void *sgid) {}
POST_SYSCALL(getresgid16)(long res, __sanitizer___kernel_old_gid_t *rgid,
__sanitizer___kernel_old_gid_t *egid,
__sanitizer___kernel_old_gid_t *sgid) {
if (res >= 0) {
if (rgid) POST_WRITE(rgid, sizeof(*rgid));
if (egid) POST_WRITE(egid, sizeof(*egid));
if (sgid) POST_WRITE(sgid, sizeof(*sgid));
}
}
PRE_SYSCALL(setfsuid16)(long uid) {}
POST_SYSCALL(setfsuid16)(long res, long uid) {}
PRE_SYSCALL(setfsgid16)(long gid) {}
POST_SYSCALL(setfsgid16)(long res, long gid) {}
PRE_SYSCALL(getgroups16)(long gidsetsize,
__sanitizer___kernel_old_gid_t *grouplist) {}
POST_SYSCALL(getgroups16)(long res, long gidsetsize,
__sanitizer___kernel_old_gid_t *grouplist) {
if (res >= 0) {
if (grouplist) POST_WRITE(grouplist, res * sizeof(*grouplist));
}
}
PRE_SYSCALL(setgroups16)(long gidsetsize,
__sanitizer___kernel_old_gid_t *grouplist) {
if (grouplist) POST_WRITE(grouplist, gidsetsize * sizeof(*grouplist));
}
POST_SYSCALL(setgroups16)(long res, long gidsetsize,
__sanitizer___kernel_old_gid_t *grouplist) {}
PRE_SYSCALL(getuid16)() {}
POST_SYSCALL(getuid16)(long res) {}
PRE_SYSCALL(geteuid16)() {}
POST_SYSCALL(geteuid16)(long res) {}
PRE_SYSCALL(getgid16)() {}
POST_SYSCALL(getgid16)(long res) {}
PRE_SYSCALL(getegid16)() {}
POST_SYSCALL(getegid16)(long res) {}
#endif // SANITIZER_USES_UID16_SYSCALLS
PRE_SYSCALL(utime)(void *filename, void *times) {}
POST_SYSCALL(utime)(long res, void *filename, void *times) {
if (res >= 0) {
if (filename)
POST_WRITE(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
if (times) POST_WRITE(times, struct_utimbuf_sz);
}
}
PRE_SYSCALL(utimes)(void *filename, void *utimes) {}
POST_SYSCALL(utimes)(long res, void *filename, void *utimes) {
if (res >= 0) {
if (filename)
POST_WRITE(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
if (utimes) POST_WRITE(utimes, timeval_sz);
}
}
PRE_SYSCALL(lseek)(long fd, long offset, long origin) {}
POST_SYSCALL(lseek)(long res, long fd, long offset, long origin) {}
PRE_SYSCALL(llseek)(long fd, long offset_high, long offset_low, void *result,
long origin) {}
POST_SYSCALL(llseek)(long res, long fd, long offset_high, long offset_low,
void *result, long origin) {
if (res >= 0) {
if (result) POST_WRITE(result, sizeof(long long));
}
}
PRE_SYSCALL(readv)(long fd, const __sanitizer_iovec *vec, long vlen) {}
POST_SYSCALL(readv)(long res, long fd, const __sanitizer_iovec *vec,
long vlen) {
if (res >= 0) {
if (vec) kernel_write_iovec(vec, vlen, res);
}
}
PRE_SYSCALL(write)(long fd, const void *buf, long count) {
if (buf) PRE_READ(buf, count);
}
POST_SYSCALL(write)(long res, long fd, const void *buf, long count) {}
PRE_SYSCALL(writev)(long fd, const __sanitizer_iovec *vec, long vlen) {}
POST_SYSCALL(writev)(long res, long fd, const __sanitizer_iovec *vec,
long vlen) {
if (res >= 0) {
if (vec) kernel_read_iovec(vec, vlen, res);
}
}
#ifdef _LP64
PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos) {}
POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos) {
if (res >= 0) {
if (buf) POST_WRITE(buf, res);
}
}
PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos) {
if (buf) PRE_READ(buf, count);
}
POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
long pos) {}
#else
PRE_SYSCALL(pread64)(long fd, void *buf, long count, long pos0, long pos1) {}
POST_SYSCALL(pread64)(long res, long fd, void *buf, long count, long pos0,
long pos1) {
if (res >= 0) {
if (buf) POST_WRITE(buf, res);
}
}
PRE_SYSCALL(pwrite64)(long fd, const void *buf, long count, long pos0,
long pos1) {
if (buf) PRE_READ(buf, count);
}
POST_SYSCALL(pwrite64)(long res, long fd, const void *buf, long count,
long pos0, long pos1) {}
#endif
PRE_SYSCALL(preadv)(long fd, const __sanitizer_iovec *vec, long vlen,
long pos_l, long pos_h) {}
POST_SYSCALL(preadv)(long res, long fd, const __sanitizer_iovec *vec, long vlen,
long pos_l, long pos_h) {
if (res >= 0) {
if (vec) kernel_write_iovec(vec, vlen, res);
}
}
PRE_SYSCALL(pwritev)(long fd, const __sanitizer_iovec *vec, long vlen,
long pos_l, long pos_h) {}
POST_SYSCALL(pwritev)(long res, long fd, const __sanitizer_iovec *vec,
long vlen, long pos_l, long pos_h) {
if (res >= 0) {
if (vec) kernel_read_iovec(vec, vlen, res);
}
}
PRE_SYSCALL(getcwd)(void *buf, long size) {}
POST_SYSCALL(getcwd)(long res, void *buf, long size) {
if (res >= 0) {
if (buf)
POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
}
}
PRE_SYSCALL(mkdir)(const void *pathname, long mode) {
if (pathname)
PRE_READ(pathname,
__sanitizer::internal_strlen((const char *)pathname) + 1);
}
POST_SYSCALL(mkdir)(long res, const void *pathname, long mode) {}
PRE_SYSCALL(chdir)(const void *filename) {
if (filename)
PRE_READ(filename,
__sanitizer::internal_strlen((const char *)filename) + 1);
}
POST_SYSCALL(chdir)(long res, const void *filename) {}
PRE_SYSCALL(fchdir)(long fd) {}
POST_SYSCALL(fchdir)(long res, long fd) {}
PRE_SYSCALL(rmdir)(const void *pathname) {
if (pathname)
PRE_READ(pathname,
__sanitizer::internal_strlen((const char *)pathname) + 1);
}
POST_SYSCALL(rmdir)(long res, const void *pathname) {}
PRE_SYSCALL(lookup_dcookie)(u64 cookie64, void *buf, long len) {}
POST_SYSCALL(lookup_dcookie)(long res, u64 cookie64, void *buf, long len) {
if (res >= 0) {
if (buf)
POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
}
}
PRE_SYSCALL(quotactl)(long cmd, const void *special, long id, void *addr) {
if (special)
PRE_READ(special, __sanitizer::internal_strlen((const char *)special) + 1);
}
POST_SYSCALL(quotactl)(long res, long cmd, const void *special, long id,
void *addr) {}
PRE_SYSCALL(getdents)(long fd, void *dirent, long count) {}
POST_SYSCALL(getdents)(long res, long fd, void *dirent, long count) {
if (res >= 0) {
if (dirent) POST_WRITE(dirent, res);
}
}
PRE_SYSCALL(getdents64)(long fd, void *dirent, long count) {}
POST_SYSCALL(getdents64)(long res, long fd, void *dirent, long count) {
if (res >= 0) {
if (dirent) POST_WRITE(dirent, res);
}
}
PRE_SYSCALL(setsockopt)(long fd, long level, long optname, void *optval,
long optlen) {}
POST_SYSCALL(setsockopt)(long res, long fd, long level, long optname,
void *optval, long optlen) {
if (res >= 0) {
if (optval)
POST_WRITE(optval,
__sanitizer::internal_strlen((const char *)optval) + 1);
}
}
PRE_SYSCALL(getsockopt)(long fd, long level, long optname, void *optval,
void *optlen) {}
POST_SYSCALL(getsockopt)(long res, long fd, long level, long optname,
void *optval, void *optlen) {
if (res >= 0) {
if (optval)
POST_WRITE(optval,
__sanitizer::internal_strlen((const char *)optval) + 1);
if (optlen) POST_WRITE(optlen, sizeof(int));
}
}
PRE_SYSCALL(bind)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
POST_SYSCALL(bind)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
long arg2) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
}
}
PRE_SYSCALL(connect)(long arg0, sanitizer_kernel_sockaddr *arg1, long arg2) {}
POST_SYSCALL(connect)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
long arg2) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
}
}
PRE_SYSCALL(accept)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2) {}
POST_SYSCALL(accept)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
if (arg2) POST_WRITE(arg2, sizeof(unsigned));
}
}
PRE_SYSCALL(accept4)(long arg0, sanitizer_kernel_sockaddr *arg1, void *arg2,
long arg3) {}
POST_SYSCALL(accept4)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2, long arg3) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
if (arg2) POST_WRITE(arg2, sizeof(unsigned));
}
}
PRE_SYSCALL(getsockname)(long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2) {}
POST_SYSCALL(getsockname)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
if (arg2) POST_WRITE(arg2, sizeof(unsigned));
}
}
PRE_SYSCALL(getpeername)(long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2) {}
POST_SYSCALL(getpeername)(long res, long arg0, sanitizer_kernel_sockaddr *arg1,
void *arg2) {
if (res >= 0) {
if (arg1) POST_WRITE(arg1, sizeof(*arg1));
if (arg2) POST_WRITE(arg2, sizeof(unsigned));
}
}
PRE_SYSCALL(send)(long arg0, void *arg1, long arg2, long arg3) {}
POST_SYSCALL(send)(long res, long arg0, void *arg1, long arg2, long arg3) {
if (res) {
if (arg1) POST_READ(arg1, res);
}
}
PRE_SYSCALL(sendto)(long arg0, void *arg1, long arg2, long arg3,
sanitizer_kernel_sockaddr *arg4, long arg5) {}
POST_SYSCALL(sendto)(long res, long arg0, void *arg1, long arg2, long arg3,
sanitizer_kernel_sockaddr *arg4, long arg5) {
if (res >= 0) {
if (arg1) POST_READ(arg1, res);
if (arg4) POST_WRITE(arg4, sizeof(*arg4));
}
}
PRE_SYSCALL(sendmsg)(long fd, void *msg, long flags) {}
POST_SYSCALL(sendmsg)(long res, long fd, void *msg, long flags) {
// FIXME: POST_READ
}
PRE_SYSCALL(sendmmsg)(long fd, void *msg, long vlen, long flags) {}
POST_SYSCALL(sendmmsg)(long res, long fd, void *msg, long vlen, long flags) {
// FIXME: POST_READ
}
PRE_SYSCALL(recv)(long arg0, void *buf, long len, long flags) {}
POST_SYSCALL(recv)(long res, void *buf, long len, long flags) {
if (res >= 0) {
if (buf) POST_WRITE(buf, res);
}
}
PRE_SYSCALL(recvfrom)(long arg0, void *buf, long len, long flags,
sanitizer_kernel_sockaddr *arg4, void *arg5) {}
POST_SYSCALL(recvfrom)(long res, long arg0, void *buf, long len, long flags,
sanitizer_kernel_sockaddr *arg4, void *arg5) {
if (res >= 0) {
if (buf) POST_WRITE(buf, res);
if (arg4) POST_WRITE(arg4, sizeof(*arg4));
if (arg5) POST_WRITE(arg5, sizeof(int));
}
}
PRE_SYSCALL(socket)(long arg0, long arg1, long arg2) {}
POST_SYSCALL(socket)(long res, long arg0, long arg1, long arg2) {}
PRE_SYSCALL(socketpair)(long arg0, long arg1, long arg2, void *arg3) {}
POST_SYSCALL(socketpair)(long res, long arg0, long arg1, long arg2,
void *arg3) {
if (res >= 0) {
if (arg3) POST_WRITE(arg3, sizeof(int));
}
}
PRE_SYSCALL(socketcall)(long call, void *args) {}
POST_SYSCALL(socketcall)(long res, long call, void *args) {
if (res >= 0) {
if (args) POST_WRITE(args, sizeof(long));
}
}
PRE_SYSCALL(listen)(long arg0, long arg1) {}
POST_SYSCALL(listen)(long res, long arg0, long arg1) {}
PRE_SYSCALL(poll)(void *ufds, long nfds, long timeout) {}
POST_SYSCALL(poll)(long res, __sanitizer_pollfd *ufds, long nfds,
long timeout) {
if (res >= 0) {
if (ufds) POST_WRITE(ufds, nfds * sizeof(*ufds));
}
}
PRE_SYSCALL(select)(long n, __sanitizer___kernel_fd_set *inp,
__sanitizer___kernel_fd_set *outp,
__sanitizer___kernel_fd_set *exp, void *tvp) {}
POST_SYSCALL(select)(long res, long n, __sanitizer___kernel_fd_set *inp,
__sanitizer___kernel_fd_set *outp,
__sanitizer___kernel_fd_set *exp, void *tvp) {
if (res >= 0) {
if (inp) POST_WRITE(inp, sizeof(*inp));
if (outp) POST_WRITE(outp, sizeof(*outp));
if (exp) POST_WRITE(exp, sizeof(*exp));
if (tvp) POST_WRITE(tvp, timeval_sz);
}
}
PRE_SYSCALL(old_select)(void *arg) {}
POST_SYSCALL(old_select)(long res, void *arg) {}
PRE_SYSCALL(epoll_create)(long size) {}
POST_SYSCALL(epoll_create)(long res, long size) {}
PRE_SYSCALL(epoll_create1)(long flags) {}
POST_SYSCALL(epoll_create1)(long res, long flags) {}
PRE_SYSCALL(epoll_ctl)(long epfd, long op, long fd, void *event) {}
POST_SYSCALL(epoll_ctl)(long res, long epfd, long op, long fd, void *event) {
if (res >= 0) {
if (event) POST_WRITE(event, struct_epoll_event_sz);
}
}
PRE_SYSCALL(epoll_wait)(long epfd, void *events, long maxevents, long timeout) {
}
POST_SYSCALL(epoll_wait)(long res, long epfd, void *events, long maxevents,
long timeout) {
if (res >= 0) {
if (events) POST_WRITE(events, struct_epoll_event_sz);
}
}
PRE_SYSCALL(epoll_pwait)(long epfd, void *events, long maxevents, long timeout,
const kernel_sigset_t *sigmask, long sigsetsize) {
if (sigmask) PRE_READ(sigmask, sigsetsize);
}
POST_SYSCALL(epoll_pwait)(long res, long epfd, void *events, long maxevents,
long timeout, const void *sigmask, long sigsetsize) {
if (res >= 0) {
if (events) POST_WRITE(events, struct_epoll_event_sz);
}
}
PRE_SYSCALL(gethostname)(void *name, long len) {}
POST_SYSCALL(gethostname)(long res, void *name, long len) {
if (res >= 0) {
if (name)
POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
}
PRE_SYSCALL(sethostname)(void *name, long len) {}
POST_SYSCALL(sethostname)(long res, void *name, long len) {
if (res >= 0) {
if (name)
POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
}
PRE_SYSCALL(setdomainname)(void *name, long len) {}
POST_SYSCALL(setdomainname)(long res, void *name, long len) {
if (res >= 0) {
if (name)
POST_WRITE(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
}
PRE_SYSCALL(newuname)(void *name) {}
POST_SYSCALL(newuname)(long res, void *name) {
if (res >= 0) {
if (name) POST_WRITE(name, struct_new_utsname_sz);
}
}
PRE_SYSCALL(uname)(void *arg0) {}
POST_SYSCALL(uname)(long res, void *arg0) {
if (res >= 0) {
if (arg0) POST_WRITE(arg0, struct_old_utsname_sz);
}
}
PRE_SYSCALL(olduname)(void *arg0) {}
POST_SYSCALL(olduname)(long res, void *arg0) {
if (res >= 0) {
if (arg0) POST_WRITE(arg0, struct_oldold_utsname_sz);
}
}
PRE_SYSCALL(getrlimit)(long resource, void *rlim) {}
POST_SYSCALL(getrlimit)(long res, long resource, void *rlim) {
if (res >= 0) {
if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
}
}
PRE_SYSCALL(old_getrlimit)(long resource, void *rlim) {}
POST_SYSCALL(old_getrlimit)(long res, long resource, void *rlim) {
if (res >= 0) {
if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
}
}
PRE_SYSCALL(setrlimit)(long resource, void *rlim) {}
POST_SYSCALL(setrlimit)(long res, long resource, void *rlim) {
if (res >= 0) {
if (rlim) POST_WRITE(rlim, struct_rlimit_sz);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim,
void *old_rlim) {
if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz);
}
POST_SYSCALL(prlimit64)(long res, long pid, long resource, const void *new_rlim,
void *old_rlim) {
if (res >= 0) {
if (old_rlim) POST_WRITE(old_rlim, struct_rlimit64_sz);
}
}
#endif
PRE_SYSCALL(getrusage)(long who, void *ru) {}
POST_SYSCALL(getrusage)(long res, long who, void *ru) {
if (res >= 0) {
if (ru) POST_WRITE(ru, struct_rusage_sz);
}
}
PRE_SYSCALL(umask)(long mask) {}
POST_SYSCALL(umask)(long res, long mask) {}
PRE_SYSCALL(msgget)(long key, long msgflg) {}
POST_SYSCALL(msgget)(long res, long key, long msgflg) {}
PRE_SYSCALL(msgsnd)(long msqid, void *msgp, long msgsz, long msgflg) {
if (msgp) PRE_READ(msgp, msgsz);
}
POST_SYSCALL(msgsnd)(long res, long msqid, void *msgp, long msgsz,
long msgflg) {}
PRE_SYSCALL(msgrcv)(long msqid, void *msgp, long msgsz, long msgtyp,
long msgflg) {}
POST_SYSCALL(msgrcv)(long res, long msqid, void *msgp, long msgsz, long msgtyp,
long msgflg) {
if (res >= 0) {
if (msgp) POST_WRITE(msgp, res);
}
}
#if !SANITIZER_ANDROID
PRE_SYSCALL(msgctl)(long msqid, long cmd, void *buf) {}
POST_SYSCALL(msgctl)(long res, long msqid, long cmd, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, struct_msqid_ds_sz);
}
}
#endif
PRE_SYSCALL(semget)(long key, long nsems, long semflg) {}
POST_SYSCALL(semget)(long res, long key, long nsems, long semflg) {}
PRE_SYSCALL(semop)(long semid, void *sops, long nsops) {}
POST_SYSCALL(semop)(long res, long semid, void *sops, long nsops) {}
PRE_SYSCALL(semctl)(long semid, long semnum, long cmd, void *arg) {}
POST_SYSCALL(semctl)(long res, long semid, long semnum, long cmd, void *arg) {}
PRE_SYSCALL(semtimedop)(long semid, void *sops, long nsops,
const void *timeout) {
if (timeout) PRE_READ(timeout, struct_timespec_sz);
}
POST_SYSCALL(semtimedop)(long res, long semid, void *sops, long nsops,
const void *timeout) {}
PRE_SYSCALL(shmat)(long shmid, void *shmaddr, long shmflg) {}
POST_SYSCALL(shmat)(long res, long shmid, void *shmaddr, long shmflg) {
if (res >= 0) {
if (shmaddr)
POST_WRITE(shmaddr,
__sanitizer::internal_strlen((const char *)shmaddr) + 1);
}
}
PRE_SYSCALL(shmget)(long key, long size, long flag) {}
POST_SYSCALL(shmget)(long res, long key, long size, long flag) {}
PRE_SYSCALL(shmdt)(void *shmaddr) {}
POST_SYSCALL(shmdt)(long res, void *shmaddr) {
if (res >= 0) {
if (shmaddr)
POST_WRITE(shmaddr,
__sanitizer::internal_strlen((const char *)shmaddr) + 1);
}
}
PRE_SYSCALL(ipc)(long call, long first, long second, long third, void *ptr,
long fifth) {}
POST_SYSCALL(ipc)(long res, long call, long first, long second, long third,
void *ptr, long fifth) {}
#if !SANITIZER_ANDROID
PRE_SYSCALL(shmctl)(long shmid, long cmd, void *buf) {}
POST_SYSCALL(shmctl)(long res, long shmid, long cmd, void *buf) {
if (res >= 0) {
if (buf) POST_WRITE(buf, sizeof(__sanitizer_shmid_ds));
}
}
PRE_SYSCALL(mq_open)(const void *name, long oflag, long mode, void *attr) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(mq_open)(long res, const void *name, long oflag, long mode,
void *attr) {
if (res >= 0) {
if (attr) POST_WRITE(attr, struct_mq_attr_sz);
}
}
PRE_SYSCALL(mq_unlink)(const void *name) {
if (name)
PRE_READ(name, __sanitizer::internal_strlen((const char *)name) + 1);
}
POST_SYSCALL(mq_unlink)(long res, const void *name) {}
PRE_SYSCALL(mq_timedsend)(long mqdes, const void *msg_ptr, long msg_len,
long msg_prio, const void *abs_timeout) {
if (msg_ptr) PRE_READ(msg_ptr, msg_len);
if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
}
POST_SYSCALL(mq_timedsend)(long res, long mqdes, const void *msg_ptr,
long msg_len, long msg_prio,
const void *abs_timeout) {}
PRE_SYSCALL(mq_timedreceive)(long mqdes, void *msg_ptr, long msg_len,
void *msg_prio, const void *abs_timeout) {
if (abs_timeout) PRE_READ(abs_timeout, struct_timespec_sz);
}
POST_SYSCALL(mq_timedreceive)(long res, long mqdes, void *msg_ptr, long msg_len,
int *msg_prio, const void *abs_timeout) {
if (res >= 0) {
if (msg_ptr) POST_WRITE(msg_ptr, res);
if (msg_prio) POST_WRITE(msg_prio, sizeof(*msg_prio));
}
}
PRE_SYSCALL(mq_notify)(long mqdes, const void *notification) {
if (notification) PRE_READ(notification, struct_sigevent_sz);
}
POST_SYSCALL(mq_notify)(long res, long mqdes, const void *notification) {}
PRE_SYSCALL(mq_getsetattr)(long mqdes, const void *mqstat, void *omqstat) {
if (mqstat) PRE_READ(mqstat, struct_mq_attr_sz);
}
POST_SYSCALL(mq_getsetattr)(long res, long mqdes, const void *mqstat,
void *omqstat) {
if (res >= 0) {
if (omqstat) POST_WRITE(omqstat, struct_mq_attr_sz);
}
}
#endif // SANITIZER_ANDROID
PRE_SYSCALL(pciconfig_iobase)(long which, long bus, long devfn) {}
POST_SYSCALL(pciconfig_iobase)(long res, long which, long bus, long devfn) {}
PRE_SYSCALL(pciconfig_read)(long bus, long dfn, long off, long len, void *buf) {
}
POST_SYSCALL(pciconfig_read)(long res, long bus, long dfn, long off, long len,
void *buf) {}
PRE_SYSCALL(pciconfig_write)(long bus, long dfn, long off, long len,
void *buf) {}
POST_SYSCALL(pciconfig_write)(long res, long bus, long dfn, long off, long len,
void *buf) {}
PRE_SYSCALL(swapon)(const void *specialfile, long swap_flags) {
if (specialfile)
PRE_READ(specialfile,
__sanitizer::internal_strlen((const char *)specialfile) + 1);
}
POST_SYSCALL(swapon)(long res, const void *specialfile, long swap_flags) {}
PRE_SYSCALL(swapoff)(const void *specialfile) {
if (specialfile)
PRE_READ(specialfile,
__sanitizer::internal_strlen((const char *)specialfile) + 1);
}
POST_SYSCALL(swapoff)(long res, const void *specialfile) {}
PRE_SYSCALL(sysctl)(__sanitizer___sysctl_args *args) {
if (args) {
if (args->name) PRE_READ(args->name, args->nlen * sizeof(*args->name));
if (args->newval) PRE_READ(args->name, args->newlen);
}
}
POST_SYSCALL(sysctl)(long res, __sanitizer___sysctl_args *args) {
if (res >= 0) {
if (args && args->oldval && args->oldlenp) {
POST_WRITE(args->oldlenp, sizeof(*args->oldlenp));
POST_WRITE(args->oldval, *args->oldlenp);
}
}
}
PRE_SYSCALL(sysinfo)(void *info) {}
POST_SYSCALL(sysinfo)(long res, void *info) {
if (res >= 0) {
if (info) POST_WRITE(info, struct_sysinfo_sz);
}
}
PRE_SYSCALL(sysfs)(long option, long arg1, long arg2) {}
POST_SYSCALL(sysfs)(long res, long option, long arg1, long arg2) {}
PRE_SYSCALL(syslog)(long type, void *buf, long len) {}
POST_SYSCALL(syslog)(long res, long type, void *buf, long len) {
if (res >= 0) {
if (buf)
POST_WRITE(buf, __sanitizer::internal_strlen((const char *)buf) + 1);
}
}
PRE_SYSCALL(uselib)(const void *library) {
if (library)
PRE_READ(library, __sanitizer::internal_strlen((const char *)library) + 1);
}
POST_SYSCALL(uselib)(long res, const void *library) {}
PRE_SYSCALL(ni_syscall)() {}
POST_SYSCALL(ni_syscall)(long res) {}
PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
#if !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__))
if (data) {
if (request == ptrace_setregs) {
PRE_READ((void *)data, struct_user_regs_struct_sz);
} else if (request == ptrace_setfpregs) {
PRE_READ((void *)data, struct_user_fpregs_struct_sz);
} else if (request == ptrace_setfpxregs) {
PRE_READ((void *)data, struct_user_fpxregs_struct_sz);
} else if (request == ptrace_setsiginfo) {
PRE_READ((void *)data, siginfo_t_sz);
} else if (request == ptrace_setregset) {
__sanitizer_iovec *iov = (__sanitizer_iovec *)data;
PRE_READ(iov->iov_base, iov->iov_len);
}
}
#endif
}
POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
#if !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__))
if (res >= 0 && data) {
// Note that this is different from the interceptor in
// sanitizer_common_interceptors.inc.