Index: user/pho/stress2/misc/syscall4.sh =================================================================== --- user/pho/stress2/misc/syscall4.sh (revision 319643) +++ user/pho/stress2/misc/syscall4.sh (revision 319644) @@ -1,368 +1,367 @@ #!/bin/sh # # Copyright (c) 2011-2013 Peter Holm # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # $FreeBSD$ # # Threaded syscall(2) fuzz test inspired by the iknowthis test suite # by Tavis Ormandy # Usage: syscall4.sh [syscall number] # Without an argument random syscall numbers are tested. # With an argument only the specified syscall number is tested. # Sample problems found: # Thread stuck in stopprof. # http://people.freebsd.org/~pho/stress/log/kostik732.txt # Fixed by r275121. # panic: td 0xcbe1ac40 is not suspended. # https://people.freebsd.org/~pho/stress/log/kostik807.txt # Fixed by r282944. [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 . ../default.cfg odir=`pwd` cd /tmp sed '1,/^EOF/d' < $odir/$0 > syscall4.c rm -f /tmp/syscall4 mycc -o syscall4 -Wall -Wextra -O2 -g syscall4.c -lpthread || exit 1 rm -f syscall4.c -kldstat -v | grep -q sysvmsg || $odir/../tools/kldload.sh sysvmsg -kldstat -v | grep -q sysvsem || $odir/../tools/kldload.sh sysvsem -kldstat -v | grep -q sysvshm || $odir/../tools/kldload.sh sysvshm -kldstat -v | grep -q aio || $odir/../tools/kldload.sh aio -kldstat -v | grep -q mqueuefs || $odir/../tools/kldload.sh mqueuefs +kldstat -v | grep -q sysvmsg || $stress2tools/kldload.sh sysvmsg +kldstat -v | grep -q sysvsem || $stress2tools/kldload.sh sysvsem +kldstat -v | grep -q sysvshm || $stress2tools/kldload.sh sysvshm +kldstat -v | grep -q aio || $stress2tools/kldload.sh aio +kldstat -v | grep -q mqueuefs || $stress2tools/kldload.sh mqueuefs mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart mdconfig -a -t swap -s 2g -u $mdstart || exit 1 bsdlabel -w md$mdstart auto newfs $newfs_flags md${mdstart}$part > /dev/null mount /dev/md${mdstart}$part $mntpoint chmod 777 $mntpoint +daemon sh -c "(cd $odir/../testcases/swap; ./swap -t 10m -i 20 -k)" > \ + /dev/null sleeptime=${sleeptime:-12} st=`date '+%s'` while [ $((`date '+%s'` - st)) -lt $((10 * sleeptime)) ]; do - daemon sh -c "(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -k -h)" > /dev/null (cd $mntpoint; /tmp/syscall4 $* ) & start=`date '+%s'` while [ $((`date '+%s'` - start)) -lt $sleeptime ]; do pgrep syscall4 > /dev/null || break sleep .5 done while pkill -9 syscall4; do : done wait - while pkill -9 swap; do - : - done ipcs | grep nobody | awk '/^(q|m|s)/ {print " -" $1, $2}' | xargs -L 1 ipcrm done +while pkill -9 swap; do + : +done while pkill -9 syscall4; do : done for i in `jot 10`; do mount | grep -q md${mdstart}$part && \ umount $mntpoint && mdconfig -d -u $mdstart && break sleep 10 done if mount | grep -q md${mdstart}$part; then fstat $mntpoint echo "umount $mntpoint failed" exit 1 fi rm -f /tmp/syscall4 exit EOF #include +#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int ignore[] = { SYS_syscall, SYS_exit, SYS_fork, 11, /* 11 is obsolete execv */ SYS_unmount, SYS_reboot, SYS_vfork, 109, /* 109 is old sigblock */ 111, /* 111 is old sigsuspend */ SYS_shutdown, SYS___syscall, 216, /* custom syscall */ SYS_rfork, SYS_sigsuspend, SYS_mac_syscall, SYS_sigtimedwait, SYS_sigwaitinfo, -#if __FreeBSD_version < 804500 - SYS_thr_create, - SYS_thr_new, -#endif -#if __FreeBSD_version >= 900041 - SYS_pdfork, -#endif }; -int fd[900], fds[2], socketpr[2]; +int fd[900], fds[2], kq, socketpr[2]; #ifndef nitems #define nitems(x) (sizeof((x)) / sizeof((x)[0])) #endif #define N (128 * 1024 / (int)sizeof(u_int32_t)) #define MAGIC 1664 #define RUNTIME 120 #define THREADS 50 u_int32_t r[N]; int magic1, syscallno, magic2; static int random_int(int mi, int ma) { return (arc4random() % (ma - mi + 1) + mi); } static void hand(int i __unused) { /* handler */ _exit(1); } unsigned long makearg(void) { unsigned int i; unsigned long val; val = arc4random(); i = arc4random() % 100; if (i < 20) val = val & 0xff; if (i >= 20 && i < 40) val = val & 0xffff; if (i >= 40 && i < 60) val = (unsigned long)(r) | (val & 0xffff); #if defined(__LP64__) if (i >= 60) { val = (val << 32) | arc4random(); if (i > 80) val = val & 0x00007fffffffffffUL; } #endif return(val); } void * test(void *arg __unused) { FTS *fts; FTSENT *p; - int ftsoptions; - char *args[6]; - int i; + int ftsoptions, i; + char *args[] = { + "/dev", + "/proc", + "/compat/linux/proc", + "/media", + ".", + NULL, + }; ftsoptions = FTS_PHYSICAL; - args[0] = "/dev"; - args[1] = "/proc"; - args[2] = "/usr/compat/linux/proc"; - args[3] = "/ifs"; - args[4] = "."; - args[5] = 0; for (;;) { for (i = 0; i < N; i++) r[i] = arc4random(); if ((fts = fts_open(args, ftsoptions, NULL)) == NULL) err(1, "fts_open"); i = 0; while ((p = fts_read(fts)) != NULL) { if (fd[i] > 0) close(fd[i]); if ((fd[i] = open(p->fts_path, O_RDWR)) == -1) if ((fd[i] = open(p->fts_path, O_WRONLY)) == -1) if ((fd[i] = open(p->fts_path, O_RDONLY)) == -1) continue; i++; i = i % nitems(fd); } if (fts_close(fts) == -1) err(1, "fts_close()"); if (pipe(fds) == -1) err(1, "pipe()"); if (socketpair(PF_UNIX, SOCK_SEQPACKET, 0, socketpr) == -1) err(1, "socketpair()"); + kq = kqueue(); sleep(1); close(socketpr[0]); close(socketpr[1]); close(fds[0]); close(fds[1]); + close(kq); } return(0); } void * calls(void *arg __unused) { int i, j, num; unsigned long arg1, arg2, arg3, arg4, arg5, arg6, arg7; for (i = 0;; i++) { if (i == 0) usleep(1000); num = syscallno; while (num == 0) { num = random_int(0, SYS_MAXSYSCALL); for (j = 0; j < (int)nitems(ignore); j++) if (num == ignore[j]) { num = 0; break; } } arg1 = makearg(); arg2 = makearg(); arg3 = makearg(); arg4 = makearg(); arg5 = makearg(); arg6 = makearg(); arg7 = makearg(); #if 0 /* Debug mode */ fprintf(stderr, "%2d : syscall(%3d, %lx, %lx, %lx, %lx, %lx, %lx, %lx)\n", i, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7); sleep(2); #endif alarm(1); syscall(num, arg1, arg2, arg3, arg4, arg5, arg6, arg7); num = 0; if (magic1 != MAGIC || magic2 != MAGIC) _exit(1); } return (0); } int main(int argc, char **argv) { struct passwd *pw; struct rlimit limit; pthread_t rp, cp[THREADS]; time_t start; int e, j; magic1 = magic2 = MAGIC; if ((pw = getpwnam("nobody")) == NULL) - err(1, "no such user: nobody"); + err(1, "failed to resolve nobody"); if (getenv("USE_ROOT") && argc == 2) fprintf(stderr, "Running syscall4 as root for %s.\n", argv[1]); else { if (setgroups(1, &pw->pw_gid) || setegid(pw->pw_gid) || setgid(pw->pw_gid) || seteuid(pw->pw_uid) || setuid(pw->pw_uid)) err(1, "Can't drop privileges to \"nobody\""); endpwent(); } limit.rlim_cur = limit.rlim_max = 1000; #if defined(RLIMIT_NPTS) if (setrlimit(RLIMIT_NPTS, &limit) < 0) err(1, "setrlimit"); #endif signal(SIGALRM, hand); signal(SIGILL, hand); signal(SIGFPE, hand); signal(SIGSEGV, hand); signal(SIGBUS, hand); signal(SIGURG, hand); signal(SIGSYS, hand); signal(SIGTRAP, hand); - if (argc > 2) - errx(1, "Usage: %s {}", argv[0]); + if (argc > 2) { + fprintf(stderr, "usage: %s [syscall-num]\n", argv[0]); + exit(1); + } if (argc == 2) { syscallno = atoi(argv[1]); for (j = 0; j < (int)nitems(ignore); j++) if (syscallno == ignore[j]) errx(0, "syscall #%d is on the ignore list.", syscallno); } if (daemon(0, 0) == -1) err(1, "daemon()"); start = time(NULL); while ((time(NULL) - start) < RUNTIME) { if (fork() == 0) { arc4random_stir(); if ((e = pthread_create(&rp, NULL, test, NULL)) != 0) errc(1, e, "pthread_create"); usleep(1000); for (j = 0; j < THREADS; j++) if ((e = pthread_create(&cp[j], NULL, calls, NULL)) != 0) errc(1, e, "pthread_create"); for (j = 0; j < THREADS; j++) pthread_join(cp[j], NULL); _exit(0); } wait(NULL); } return (0); }