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248 lines
8.1 KiB
248 lines
8.1 KiB
4 months ago
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/*
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* Check decoding of utimensat syscall.
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*
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <asm/unistd.h>
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#if defined __NR_utimensat && defined UTIME_NOW && defined UTIME_OMIT
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#if SIZEOF_KERNEL_LONG_T == 4
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# define big_tv_sec "-559038737"
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# define huge_tv_sec "-559038737"
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# else
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# define big_tv_sec "3735928559"
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# define huge_tv_sec "-3819351491602432273"
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# endif
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# if XLAT_RAW
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# define str_at_fdcwd "-100"
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# define str_at_symlink_nofollow "0x100"
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# define str_at_removedir "0x200"
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# define str_flags1 "0x600"
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# define str_flags2 "0xffffffff"
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# define str_utime_now_omit \
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"[{tv_sec=" big_tv_sec ", tv_nsec=1073741823}, " \
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"{tv_sec=" huge_tv_sec ", tv_nsec=1073741822}]"
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# elif XLAT_VERBOSE
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# define str_at_fdcwd "-100 /* AT_FDCWD */"
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# define str_at_symlink_nofollow "0x100 /* AT_SYMLINK_NOFOLLOW */"
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# define str_at_removedir "0x200 /* AT_REMOVEDIR */"
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# define str_flags1 \
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"0x600 /* AT_REMOVEDIR|AT_SYMLINK_FOLLOW */"
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# define str_flags2 \
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"0xffffffff /* AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \
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"|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff */"
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# define str_utime_now_omit \
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"[{tv_sec=" big_tv_sec ", tv_nsec=1073741823} /* UTIME_NOW */, " \
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"{tv_sec=" huge_tv_sec ", tv_nsec=1073741822} /* UTIME_OMIT */]"
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# else
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# define str_at_fdcwd "AT_FDCWD"
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# define str_at_symlink_nofollow "AT_SYMLINK_NOFOLLOW"
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# define str_at_removedir "AT_REMOVEDIR"
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# define str_flags1 "AT_REMOVEDIR|AT_SYMLINK_FOLLOW"
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# define str_flags2 \
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"AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \
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"|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff"
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# define str_utime_now_omit "[UTIME_NOW, UTIME_OMIT]"
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# endif
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static void
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print_ts(const struct timespec *ts)
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{
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printf("{tv_sec=%lld, tv_nsec=%llu}", (long long) ts->tv_sec,
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zero_extend_signed_to_ull(ts->tv_nsec));
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print_time_t_nsec(ts->tv_sec,
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zero_extend_signed_to_ull(ts->tv_nsec), 1);
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}
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static const char *errstr;
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static long
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k_utimensat(const kernel_ulong_t dirfd,
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const kernel_ulong_t pathname,
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const kernel_ulong_t times,
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const kernel_ulong_t flags)
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{
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long rc = syscall(__NR_utimensat, dirfd, pathname, times, flags);
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errstr = sprintrc(rc);
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return rc;
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}
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int
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main(void)
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{
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static const kernel_ulong_t bogus_fd =
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(kernel_ulong_t) 0xbadc0deddeadbeef;
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static const kernel_ulong_t kfdcwd =
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(kernel_ulong_t) 0xdefaced00000000 | -100U;
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static const char proto_fname[] = "utimensat\nfilename";
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static const char qname[] = "\"utimensat\\nfilename\"";
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char *const fname = tail_memdup(proto_fname, sizeof(proto_fname));
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const kernel_ulong_t kfname = (uintptr_t) fname;
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struct timespec *const ts = tail_alloc(sizeof(*ts) * 2);
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(void) close(0);
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/* dirfd */
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k_utimensat(0, kfname, 0, 0);
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printf("utimensat(0, %s, NULL, 0) = %s\n", qname, errstr);
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k_utimensat(bogus_fd, kfname, 0, 0);
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printf("utimensat(%d, %s, NULL, 0) = %s\n",
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(int) bogus_fd, qname, errstr);
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k_utimensat(-100U, kfname, 0, 0);
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printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr);
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k_utimensat(kfdcwd, kfname, 0, 0);
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printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr);
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/* pathname */
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k_utimensat(kfdcwd, 0, 0, 0);
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printf("utimensat(" str_at_fdcwd ", NULL, NULL, 0) = %s\n", errstr);
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k_utimensat(kfdcwd, kfname + sizeof(proto_fname) - 1, 0, 0);
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printf("utimensat(" str_at_fdcwd ", \"\", NULL, 0) = %s\n", errstr);
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fname[sizeof(proto_fname) - 1] = '+';
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k_utimensat(kfdcwd, kfname, 0, 0);
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fname[sizeof(proto_fname) - 1] = '\0';
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printf("utimensat(" str_at_fdcwd ", %p, NULL, 0) = %s\n", fname, errstr);
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if (F8ILL_KULONG_SUPPORTED) {
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k_utimensat(kfdcwd, f8ill_ptr_to_kulong(fname), 0, 0);
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printf("utimensat(" str_at_fdcwd ", %#jx, NULL, 0) = %s\n",
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(uintmax_t) f8ill_ptr_to_kulong(fname), errstr);
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}
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/* times */
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k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 1), 0);
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printf("utimensat(" str_at_fdcwd ", %s, %p, 0) = %s\n",
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qname, ts + 1, errstr);
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k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 2), 0);
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printf("utimensat(" str_at_fdcwd ", %s, %p, 0)"
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" = %s\n", qname, ts + 2, errstr);
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ts[0].tv_sec = 1492358706;
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ts[0].tv_nsec = 123456789;
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ts[1].tv_sec = 1492357068;
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ts[1].tv_nsec = 234567890;
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
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printf("utimensat(" str_at_fdcwd ", %s, [", qname);
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print_ts(&ts[0]);
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printf(", ");
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print_ts(&ts[1]);
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printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
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ts[0].tv_sec = -1;
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ts[0].tv_nsec = 2000000000;
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ts[1].tv_sec = (time_t) -0x100000001LL;
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ts[1].tv_nsec = 2345678900U;
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
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printf("utimensat(" str_at_fdcwd ", %s, [", qname);
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print_ts(&ts[0]);
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printf(", ");
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print_ts(&ts[1]);
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printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
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ts[0].tv_sec = 0;
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ts[0].tv_nsec = 0;
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ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL;
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ts[1].tv_nsec = 0;
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
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printf("utimensat(" str_at_fdcwd ", %s, [", qname);
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print_ts(&ts[0]);
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printf(", ");
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print_ts(&ts[1]);
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printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
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ts[0].tv_sec = 0xdeadbeefU;
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ts[0].tv_nsec = 0xfacefeedU;
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ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL;
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ts[1].tv_nsec = (long) 0xbadc0dedfacefeedLL;
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
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printf("utimensat(" str_at_fdcwd ", %s, [", qname);
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print_ts(&ts[0]);
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printf(", ");
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print_ts(&ts[1]);
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printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
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ts[0].tv_nsec = UTIME_NOW;
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ts[1].tv_nsec = UTIME_OMIT;
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
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printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
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", " str_at_symlink_nofollow ") = %s\n", qname, errstr);
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if (F8ILL_KULONG_SUPPORTED) {
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k_utimensat(kfdcwd, kfname, f8ill_ptr_to_kulong(ts), 0);
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printf("utimensat(" str_at_fdcwd ", %s, %#jx, 0) = %s\n",
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qname, (uintmax_t) f8ill_ptr_to_kulong(ts), errstr);
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}
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/* flags */
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts,
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(kernel_ulong_t) 0xdefaced00000200);
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printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
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", " str_at_removedir ") = %s\n",
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qname, errstr);
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts,
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(kernel_ulong_t) 0xdefaced00000600);
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printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
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", " str_flags1 ") = %s\n",
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qname, errstr);
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k_utimensat(kfdcwd, kfname, (uintptr_t) ts, (kernel_ulong_t) -1ULL);
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printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
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", " str_flags2 ") = %s\n",
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qname, errstr);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_utimensat && UTIME_NOW && UTIME_OMIT")
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#endif
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