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stress-sysbadaddr.c
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/*
* Copyright (C) 2013-2021 Canonical, Ltd.
* Copyright (C) 2022 Colin Ian King.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "stress-ng.h"
#if defined(HAVE_SYS_STATFS_H)
#include <sys/statfs.h>
#else
UNEXPECTED
#endif
#if defined(HAVE_SYS_UIO_H)
#include <sys/uio.h>
#else
UNEXPECTED
#endif
#if defined(HAVE_SYS_UTSNAME_H)
#include <sys/utsname.h>
#else
UNEXPECTED
#endif
#if defined(HAVE_SYS_XATTR_H)
#include <sys/xattr.h>
#undef HAVE_ATTR_XATTR_H
#elif defined(HAVE_ATTR_XATTR_H)
#include <attr/xattr.h>
#endif
/* Sanity check */
#if defined(HAVE_SYS_XATTR_H) && \
defined(HAVE_ATTR_XATTR_H)
#error cannot have both HAVE_SYS_XATTR_H and HAVE_ATTR_XATTR_H
#endif
#if defined(HAVE_POLL_H)
#include <poll.h>
#else
UNEXPECTED
#endif
#if defined(HAVE_UTIME_H)
#include <utime.h>
#else
UNEXPECTED
#endif
#if defined(HAVE_PTRACE)
#include <sys/ptrace.h>
#endif
typedef void *(*stress_bad_addr_t)(const stress_args_t *args);
typedef int (*stress_bad_syscall_t)(void *addr);
static void *no_page; /* no protect page */
static void *ro_page; /* Read only page */
static void *rw_page; /* Read-Write page */
static void *rx_page; /* Read-eXecute page */
static void *wo_page; /* Write only page */
static void *wx_page; /* Write-eXecute page */
static const stress_help_t help[] = {
{ NULL, "sysbadaddr N", "start N workers that pass bad addresses to syscalls" },
{ NULL, "sysbadaddr-ops N", "stop after N sysbadaddr bogo syscalls" },
{ NULL, NULL, NULL }
};
static const int sigs[] = {
#if defined(SIGILL)
SIGILL,
#endif
#if defined(SIGTRAP)
SIGTRAP,
#endif
#if defined(SIGFPE)
SIGFPE,
#endif
#if defined(SIGBUS)
SIGBUS,
#endif
#if defined(SIGSEGV)
SIGSEGV,
#endif
#if defined(SIGIOT)
SIGIOT,
#endif
#if defined(SIGEMT)
SIGEMT,
#endif
#if defined(SIGALRM)
SIGALRM,
#endif
#if defined(SIGINT)
SIGINT,
#endif
#if defined(SIGHUP)
SIGHUP
#endif
};
/*
* limit_procs()
* try to limit child resources
*/
static void limit_procs(const int procs)
{
#if defined(RLIMIT_CPU) || defined(RLIMIT_NPROC)
struct rlimit lim;
#endif
#if defined(RLIMIT_CPU)
lim.rlim_cur = 1;
lim.rlim_max = 1;
(void)setrlimit(RLIMIT_CPU, &lim);
#endif
#if defined(RLIMIT_NPROC)
lim.rlim_cur = (rlim_t)procs;
lim.rlim_max = (rlim_t)procs;
(void)setrlimit(RLIMIT_NPROC, &lim);
#else
(void)procs;
#endif
}
static inline void *inc_addr(void *ptr, const size_t inc)
{
return (void *)((char *)ptr + inc);
}
static void *unaligned_addr(const stress_args_t *args)
{
static uint64_t data[8] = {
~0ULL, ~0ULL, ~0ULL, ~0ULL,
~0ULL, ~0ULL, ~0ULL, ~0ULL
};
uint8_t *ptr = (uint8_t *)data;
(void)args;
return ptr + 1;
}
static void *readonly_addr(const stress_args_t *args)
{
(void)args;
return ro_page;
}
static void *null_addr(const stress_args_t *args)
{
(void)args;
return NULL;
}
static void *text_addr(const stress_args_t *args)
{
(void)args;
return (void *)&write;
}
static void *bad_end_addr(const stress_args_t *args)
{
return ((uint8_t *)rw_page) + args->page_size - 1;
}
static void *bad_max_addr(const stress_args_t *args)
{
(void)args;
return (void *)~(uintptr_t)0;
}
static void *unmapped_addr(const stress_args_t *args)
{
return ((uint8_t *)rw_page) + args->page_size;
}
static void *exec_addr(const stress_args_t *args)
{
(void)args;
return rx_page;
}
static void *none_addr(const stress_args_t *args)
{
(void)args;
return no_page;
}
static void *write_addr(const stress_args_t *args)
{
(void)args;
return wo_page;
}
static void *write_exec_addr(const stress_args_t *args)
{
(void)args;
return wx_page;
}
static const stress_bad_addr_t bad_addrs[] = {
unaligned_addr,
readonly_addr,
null_addr,
text_addr,
bad_end_addr,
bad_max_addr,
unmapped_addr,
exec_addr,
none_addr,
write_addr,
write_exec_addr,
};
static int bad_access(void *addr)
{
return access((char *)addr, R_OK);
}
/*
static int bad_acct(void *addr)
{
return acct((char *)addr);
}
*/
static int bad_bind(void *addr)
{
return bind(0, (struct sockaddr *)addr, 0);
}
static int bad_chdir(void *addr)
{
return chdir((char *)addr);
}
static int bad_chmod(void *addr)
{
return chmod((char *)addr, 0);
}
static int bad_chown(void *addr)
{
return chown((char *)addr, getuid(), getgid());
}
#if defined(HAVE_CHROOT)
static int bad_chroot(void *addr)
{
return chroot((char *)addr);
}
#endif
#if defined(HAVE_CLOCK_GETRES) && \
defined(CLOCK_REALTIME)
static int bad_clock_getres(void *addr)
{
return clock_getres(CLOCK_REALTIME, (struct timespec *)addr);
}
#endif
#if defined(HAVE_CLOCK_GETTIME) && \
defined(CLOCK_REALTIME)
static int bad_clock_gettime(void *addr)
{
return clock_gettime(CLOCK_REALTIME, (struct timespec *)addr);
}
#endif
#if defined(HAVE_CLOCK_NANOSLEEP) && \
defined(CLOCK_REALTIME)
static int bad_clock_nanosleep(void *addr)
{
return clock_nanosleep(CLOCK_REALTIME, 0,
(const struct timespec *)addr,
(struct timespec *)addr);
}
#endif
#if defined(CLOCK_THREAD_CPUTIME_ID) && \
defined(HAVE_CLOCK_SETTIME)
static int bad_clock_settime(void *addr)
{
return clock_settime(CLOCK_THREAD_CPUTIME_ID, (const struct timespec *)addr);
}
#endif
#if defined(HAVE_CLONE) && \
defined(__linux__)
static int bad_clone(void *addr)
{
typedef int (*fn)(void *);
return clone((fn)addr, (void *)addr, 0, (void *)addr,
(pid_t *)inc_addr(addr, 1),
(void *)inc_addr(addr, 2),
(pid_t *)inc_addr(addr, 3));
}
#endif
static int bad_connect(void *addr)
{
return connect(0, (const struct sockaddr *)addr, sizeof(struct sockaddr));
}
/*
static int bad_creat(void *addr)
{
return creat((char *)addr, 0);
}
*/
static int bad_execve(void *addr)
{
return execve((char *)addr, (char **)inc_addr(addr, 1),
(char **)inc_addr(addr, 2));
}
#if defined(HAVE_FACCESSAT)
static int bad_faccessat(void *addr)
{
return faccessat(AT_FDCWD, (char *)addr, R_OK, 0);
}
#endif
static int bad_fstat(void *addr)
{
return fstat(0, (struct stat *)addr);
}
static int bad_getcpu(void *addr)
{
return (int)shim_getcpu((unsigned *)addr, (unsigned *)inc_addr(addr, 2),
(void *)inc_addr(addr, 2));
}
static int bad_getcwd(void *addr)
{
if (getcwd((char *)addr, 1024) == NULL)
return -1;
return 0;
}
#if defined(HAVE_GETDOMAINNAME)
static int bad_getdomainname(void *addr)
{
return getdomainname((char *)addr, 8192);
}
#endif
static int bad_getgroups(void *addr)
{
return getgroups(8192, (gid_t *)addr);
}
#if defined(HAVE_GETHOSTNAME)
static int bad_gethostname(void *addr)
{
return gethostname((char *)addr, 8192);
}
#endif
static int bad_getitimer(void *addr)
{
return getitimer(ITIMER_PROF, (struct itimerval *)addr);
}
static int bad_getpeername(void *addr)
{
return getpeername(0, (struct sockaddr *)addr, (socklen_t *)inc_addr(addr, 1));
}
static int bad_get_mempolicy(void *addr)
{
return shim_get_mempolicy((int *)addr,
(unsigned long *)inc_addr(addr, 1), 1,
inc_addr(addr, 2), 0UL);
}
static int bad_getrandom(void *addr)
{
return shim_getrandom((void *)addr, 1024, 0);
}
#if defined(HAVE_GETRESGID)
static int bad_getresgid(void *addr)
{
return getresgid((gid_t *)addr, (gid_t *)inc_addr(addr, 1),
(gid_t *)inc_addr(addr, 2));
}
#endif
#if defined(HAVE_GETRESUID)
static int bad_getresuid(void *addr)
{
return getresuid((uid_t *)addr, (uid_t *)inc_addr(addr, 1),
(uid_t *)inc_addr(addr, 2));
}
#endif
static int bad_getrlimit(void *addr)
{
return getrlimit(RLIMIT_CPU, (struct rlimit *)addr);
}
#if defined(HAVE_GETRUSAGE) && \
defined(RUSAGE_SELF)
static int bad_getrusage(void *addr)
{
return shim_getrusage(RUSAGE_SELF, (struct rusage *)addr);
}
#endif
static int bad_getsockname(void *addr)
{
return getsockname(0, (struct sockaddr *)addr, (socklen_t *)inc_addr(addr, 1));
}
static int bad_gettimeofday(void *addr)
{
struct timezone *tz = (struct timezone *)inc_addr(addr, 1);
return gettimeofday((struct timeval *)addr, tz);
}
#if defined(HAVE_GETXATTR) && \
(defined(HAVE_SYS_XATTR_H) || defined(HAVE_ATTR_XATTR_H))
static int bad_getxattr(void *addr)
{
return (int)shim_getxattr((char *)addr, (char *)inc_addr(addr, 1),
(void *)inc_addr(addr, 2), (size_t)32);
}
#endif
#if defined(TCGETS)
static int bad_ioctl(void *addr)
{
return ioctl(0, TCGETS, addr);
}
#else
UNEXPECTED
#endif
static int bad_lchown(void *addr)
{
return lchown((char *)addr, getuid(), getgid());
}
static int bad_link(void *addr)
{
return link((char *)addr, (char *)inc_addr(addr, 1));
}
static int bad_lstat(void *addr)
{
return lstat((const char *)addr, (struct stat *)inc_addr(addr, 1));
}
#if defined(HAVE_MADVISE)
static int bad_madvise(void *addr)
{
return madvise((void *)addr, 8192, MADV_NORMAL);
}
#else
UNEXPECTED
#endif
#if defined(HAVE_MEMFD_CREATE)
static int bad_memfd_create(void *addr)
{
int fd;
fd = shim_memfd_create(addr, 0);
if (fd > 0)
(void)close(fd);
return fd;
}
#endif
static int bad_migrate_pages(void *addr)
{
return (int)shim_migrate_pages(getpid(), 1, (unsigned long *)addr,
(unsigned long *)inc_addr(addr, 1));
}
static int bad_mincore(void *addr)
{
return shim_mincore((void *)ro_page, 1, (unsigned char *)addr);
}
#if defined(HAVE_MLOCK)
static int bad_mlock(void *addr)
{
return shim_mlock((void *)addr, 4096);
}
#else
UNEXPECTED
#endif
#if defined(HAVE_MLOCK2)
static int bad_mlock2(void *addr)
{
return shim_mlock2((void *)addr, 4096, 0);
}
#endif
#if defined(__NR_move_pages)
static int bad_move_pages(void *addr)
{
return (int)shim_move_pages(getpid(), (unsigned long)1, (void **)addr,
(const int *)inc_addr(addr, 1), (int *)inc_addr(addr, 2), 0);
}
#endif
#if defined(HAVE_MLOCK)
static int bad_munlock(void *addr)
{
return shim_munlock((void *)addr, 4096);
}
#endif
/*
#if defined(HAVE_MPROTECT)
static int bad_mprotect(void *addr)
{
return mprotect((void *)addr, 4096, PROT_READ | PROT_WRITE);
}
#endif
*/
#if defined(HAVE_MSYNC)
static int bad_msync(void *addr)
{
return shim_msync((void *)addr, 4096, MS_SYNC);
}
#else
UNEXPECTED
#endif
#if defined(HAVE_NANOSLEEP)
static int bad_nanosleep(void *addr)
{
return nanosleep((struct timespec *)addr,
(struct timespec *)inc_addr(addr, 1));
}
#else
UNEXPECTED
#endif
static int bad_open(void *addr)
{
int fd;
fd = open((char *)addr, O_RDONLY);
if (fd != -1)
(void)close(fd);
return fd;
}
static int bad_pipe(void *addr)
{
return pipe((int *)addr);
}
static int bad_pread(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/zero", O_RDONLY);
if (fd > -1) {
ret = pread(fd, addr, 1024, 0);
(void)close(fd);
}
return (int)ret;
}
#if defined(HAVE_PTRACE) && \
defined(PTRACE_GETREGS)
static int bad_ptrace(void *addr)
{
return ptrace(PTRACE_GETREGS, getpid(), (void *)addr,
(void *)inc_addr(addr, 1));
}
#endif
#if defined(HAVE_POLL_H)
static int bad_poll(void *addr)
{
return poll((struct pollfd *)addr, (nfds_t)16, (int)1);
}
#else
UNEXPECTED
#endif
static int bad_pwrite(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/null", O_WRONLY);
if (fd > -1) {
ret = pwrite(fd, (void *)addr, 1024, 0);
(void)close(fd);
}
return (int)ret;
}
static int bad_read(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/zero", O_RDONLY);
if (fd > -1) {
ret = read(fd, (void *)addr, 1024);
(void)close(fd);
}
return (int)ret;
}
static int bad_readlink(void *addr)
{
return (int)shim_readlink((const char *)addr, (char *)inc_addr(addr, 1), 8192);
}
#if defined(HAVE_SYS_UIO_H)
static int bad_readv(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/zero", O_RDONLY);
if (fd > -1) {
ret = readv(fd, (void *)addr, 32);
(void)close(fd);
}
return (int)ret;
}
#endif
static int bad_rename(void *addr)
{
return rename((char *)addr, (char *)inc_addr(addr, 1));
}
#if defined(HAVE_SCHED_GETAFFINITY)
static int bad_sched_getaffinity(void *addr)
{
return sched_getaffinity(getpid(), (size_t)8192, (cpu_set_t *)addr);
}
#else
UNEXPECTED
#endif
static int bad_select(void *addr)
{
int fd, ret = 0;
fd_set *readfds = addr;
fd_set *writefds = readfds + 1;
fd_set *exceptfds = writefds + 1;
fd = open("/dev/zero", O_RDONLY);
if (fd > -1) {
ret = select(fd, readfds, writefds, exceptfds, (struct timeval *)inc_addr(addr, 4));
(void)close(fd);
}
return ret;
}
static int bad_setitimer(void *addr)
{
return setitimer(ITIMER_PROF, (struct itimerval *)addr,
(struct itimerval *)inc_addr(addr, 1));
}
static int bad_setrlimit(void *addr)
{
return setrlimit(RLIMIT_CPU, (struct rlimit *)addr);
}
static int bad_stat(void *addr)
{
return stat((char *)addr, (struct stat *)inc_addr(addr, 1));
}
#if defined(HAVE_STATFS)
static int bad_statfs(void *addr)
{
return statfs(".", (struct statfs *)addr);
}
#else
UNEXPECTED
#endif
#if defined(HAVE_SYS_SYSINFO_H) && \
defined(HAVE_SYSINFO)
static int bad_sysinfo(void *addr)
{
return sysinfo((struct sysinfo *)addr);
}
#else
UNEXPECTED
#endif
static int bad_time(void *addr)
{
return (int )time((time_t *)addr);
}
#if defined(HAVE_LIB_RT) && \
defined(HAVE_TIMER_CREATE)
static int bad_timer_create(void *addr)
{
timer_t *timerid = (timer_t *)addr;
timerid++;
return timer_create(CLOCK_MONOTONIC, (struct sigevent *)addr, timerid);
}
#else
UNEXPECTED
#endif
static int bad_times(void *addr)
{
return (int)times((struct tms *)addr);
}
static int bad_truncate(void *addr)
{
return truncate((char *)addr, 8192);
}
#if defined(HAVE_UNAME) && \
defined(HAVE_SYS_UTSNAME_H)
static int bad_uname(void *addr)
{
return uname((struct utsname *)addr);
}
#else
UNEXPECTED
#endif
static int bad_ustat(void *addr)
{
dev_t dev = { 0 };
int ret;
ret = shim_ustat(dev, (struct shim_ustat *)addr);
if ((ret < 0) && (errno == ENOSYS)) {
ret = 0;
errno = 0;
}
return ret;
}
#if defined(HAVE_UTIME_H)
static int bad_utime(void *addr)
{
return utime(addr, (struct utimbuf *)addr);
}
#endif
static int bad_utimes(void *addr)
{
return utimes(addr, (const struct timeval *)inc_addr(addr, 1));
}
static int bad_wait(void *addr)
{
return wait((int *)addr);
}
static int bad_waitpid(void *addr)
{
return waitpid(getpid(), (int *)addr, (int)0);
}
#if defined(HAVE_WAITID)
static int bad_waitid(void *addr)
{
return waitid(P_PID, (id_t)getpid(), (siginfo_t *)addr, 0);
}
#else
UNEXPECTED
#endif
static int bad_write(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/null", O_WRONLY);
if (fd > -1) {
ret = write(fd, (void *)addr, 1024);
(void)close(fd);
}
return (int)ret;
}
#if defined(HAVE_SYS_UIO_H)
static int bad_writev(void *addr)
{
int fd;
ssize_t ret = 0;
fd = open("/dev/zero", O_RDONLY);
if (fd > -1) {
ret = writev(fd, (void *)addr, 32);
(void)close(fd);
}
return (int)ret;
}
#else
UNEXPECTED
#endif
static stress_bad_syscall_t bad_syscalls[] = {
bad_access,
/*
bad_acct,
*/
bad_bind,
bad_chdir,
bad_chmod,
bad_chown,
#if defined(HAVE_CHROOT)
bad_chroot,
#endif
#if defined(HAVE_CLOCK_GETRES) && \
defined(CLOCK_REALTIME)
bad_clock_getres,
#endif
#if defined(HAVE_CLOCK_GETTIME) && \
defined(CLOCK_REALTIME)
bad_clock_gettime,
#endif
#if defined(HAVE_CLOCK_NANOSLEEP) && \
defined(CLOCK_REALTIME)
bad_clock_nanosleep,
#endif
#if defined(CLOCK_THREAD_CPUTIME_ID) && \
defined(HAVE_CLOCK_SETTIME)
bad_clock_settime,
#endif
#if defined(HAVE_CLONE) && \
defined(__linux__)
bad_clone,
#endif
bad_connect,
/*
bad_creat,
*/
bad_execve,
#if defined(HAVE_FACCESSAT)
bad_faccessat,
#endif
bad_fstat,
bad_getcpu,
bad_getcwd,
#if defined(HAVE_GETDOMAINNAME)
bad_getdomainname,
#endif
bad_getgroups,
bad_get_mempolicy,
#if defined(HAVE_GETHOSTNAME)
bad_gethostname,
#endif
bad_getitimer,
bad_getpeername,
bad_getrandom,
bad_getrlimit,
#if defined(HAVE_GETRESGID)
bad_getresgid,
#endif
#if defined(HAVE_GETRESUID)
bad_getresuid,
#endif
bad_getrlimit,
#if defined(HAVE_GETRUSAGE) && \
defined(RUSAGE_SELF)
bad_getrusage,
#endif
bad_getsockname,
bad_gettimeofday,
#if defined(HAVE_GETXATTR) && \
(defined(HAVE_SYS_XATTR_H) || defined(HAVE_ATTR_XATTR_H))
bad_getxattr,
#endif
#if defined(TCGETS)
bad_ioctl,
#endif
bad_lchown,
bad_link,
bad_lstat,
#if defined(HAVE_MADVISE)
bad_madvise,
#endif
#if defined(HAVE_MEMFD_CREATE)
bad_memfd_create,
#endif
bad_migrate_pages,
bad_mincore,
#if defined(HAVE_MLOCK)
bad_mlock,
#endif
#if defined(HAVE_MLOCK2)
bad_mlock2,
#endif
#if defined(__NR_move_pages)
bad_move_pages,
#endif
#if defined(HAVE_MSYNC)
bad_msync,
#endif
#if defined(HAVE_MLOCK)
bad_munlock,
#endif
#if defined(HAVE_NANOSLEEP)
bad_nanosleep,
#endif
bad_open,
bad_pipe,
#if defined(HAVE_POLL_H)
bad_poll,
#endif
bad_pread,
#if defined(HAVE_PTRACE) && \
defined(PTRACE_GETREGS)
bad_ptrace,
#endif
bad_pwrite,
bad_read,
bad_readlink,
#if defined(HAVE_SYS_UIO_H)
bad_readv,
#endif
bad_rename,
#if defined(HAVE_SCHED_GETAFFINITY)
bad_sched_getaffinity,
#endif
bad_select,
bad_setitimer,
bad_setrlimit,
bad_stat,
#if defined(HAVE_STATFS)
bad_statfs,
#endif
#if defined(HAVE_SYS_SYSINFO_H) && \
defined(HAVE_SYSINFO)
bad_sysinfo,
#endif
bad_time,
#if defined(HAVE_LIB_RT) && \
defined(HAVE_TIMER_CREATE)
bad_timer_create,
#endif
bad_times,
bad_truncate,
#if defined(HAVE_UNAME) && \
defined(HAVE_SYS_UTSNAME_H)
bad_uname,
#endif
bad_ustat,
#if defined(HAVE_UTIME_H)
bad_utime,
#endif
bad_utimes,
bad_wait,
bad_waitpid,
#if defined(HAVE_WAITID)
bad_waitid,
#endif
bad_write,