/* * Check decoding of utimensat syscall. * * Copyright (c) 2015-2017 Dmitry V. Levin * Copyright (c) 2015-2018 The strace developers. * 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ #include "tests.h" #include #include #include #include #include #include #include #if defined __NR_utimensat && defined UTIME_NOW && defined UTIME_OMIT #if SIZEOF_KERNEL_LONG_T == 4 # define big_tv_sec "-559038737" # define huge_tv_sec "-559038737" # else # define big_tv_sec "3735928559" # define huge_tv_sec "-3819351491602432273" # endif # if XLAT_RAW # define str_at_fdcwd "-100" # define str_at_symlink_nofollow "0x100" # define str_at_removedir "0x200" # define str_flags1 "0x600" # define str_flags2 "0xffffffff" # define str_utime_now_omit \ "[{tv_sec=" big_tv_sec ", tv_nsec=1073741823}, " \ "{tv_sec=" huge_tv_sec ", tv_nsec=1073741822}]" # elif XLAT_VERBOSE # define str_at_fdcwd "-100 /* AT_FDCWD */" # define str_at_symlink_nofollow "0x100 /* AT_SYMLINK_NOFOLLOW */" # define str_at_removedir "0x200 /* AT_REMOVEDIR */" # define str_flags1 \ "0x600 /* AT_REMOVEDIR|AT_SYMLINK_FOLLOW */" # define str_flags2 \ "0xffffffff /* AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \ "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff */" # define str_utime_now_omit \ "[{tv_sec=" big_tv_sec ", tv_nsec=1073741823} /* UTIME_NOW */, " \ "{tv_sec=" huge_tv_sec ", tv_nsec=1073741822} /* UTIME_OMIT */]" # else # define str_at_fdcwd "AT_FDCWD" # define str_at_symlink_nofollow "AT_SYMLINK_NOFOLLOW" # define str_at_removedir "AT_REMOVEDIR" # define str_flags1 "AT_REMOVEDIR|AT_SYMLINK_FOLLOW" # define str_flags2 \ "AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \ "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff" # define str_utime_now_omit "[UTIME_NOW, UTIME_OMIT]" # endif static void print_ts(const struct timespec *ts) { printf("{tv_sec=%lld, tv_nsec=%llu}", (long long) ts->tv_sec, zero_extend_signed_to_ull(ts->tv_nsec)); print_time_t_nsec(ts->tv_sec, zero_extend_signed_to_ull(ts->tv_nsec), 1); } static const char *errstr; static long k_utimensat(const kernel_ulong_t dirfd, const kernel_ulong_t pathname, const kernel_ulong_t times, const kernel_ulong_t flags) { long rc = syscall(__NR_utimensat, dirfd, pathname, times, flags); errstr = sprintrc(rc); return rc; } int main(void) { static const kernel_ulong_t bogus_fd = (kernel_ulong_t) 0xbadc0deddeadbeef; static const kernel_ulong_t kfdcwd = (kernel_ulong_t) 0xdefaced00000000 | -100U; static const char proto_fname[] = "utimensat\nfilename"; static const char qname[] = "\"utimensat\\nfilename\""; char *const fname = tail_memdup(proto_fname, sizeof(proto_fname)); const kernel_ulong_t kfname = (uintptr_t) fname; struct timespec *const ts = tail_alloc(sizeof(*ts) * 2); (void) close(0); /* dirfd */ k_utimensat(0, kfname, 0, 0); printf("utimensat(0, %s, NULL, 0) = %s\n", qname, errstr); k_utimensat(bogus_fd, kfname, 0, 0); printf("utimensat(%d, %s, NULL, 0) = %s\n", (int) bogus_fd, qname, errstr); k_utimensat(-100U, kfname, 0, 0); printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr); k_utimensat(kfdcwd, kfname, 0, 0); printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr); /* pathname */ k_utimensat(kfdcwd, 0, 0, 0); printf("utimensat(" str_at_fdcwd ", NULL, NULL, 0) = %s\n", errstr); k_utimensat(kfdcwd, kfname + sizeof(proto_fname) - 1, 0, 0); printf("utimensat(" str_at_fdcwd ", \"\", NULL, 0) = %s\n", errstr); fname[sizeof(proto_fname) - 1] = '+'; k_utimensat(kfdcwd, kfname, 0, 0); fname[sizeof(proto_fname) - 1] = '\0'; printf("utimensat(" str_at_fdcwd ", %p, NULL, 0) = %s\n", fname, errstr); if (F8ILL_KULONG_SUPPORTED) { k_utimensat(kfdcwd, f8ill_ptr_to_kulong(fname), 0, 0); printf("utimensat(" str_at_fdcwd ", %#jx, NULL, 0) = %s\n", (uintmax_t) f8ill_ptr_to_kulong(fname), errstr); } /* times */ k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 1), 0); printf("utimensat(" str_at_fdcwd ", %s, %p, 0) = %s\n", qname, ts + 1, errstr); k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 2), 0); printf("utimensat(" str_at_fdcwd ", %s, %p, 0)" " = %s\n", qname, ts + 2, errstr); ts[0].tv_sec = 1492358706; ts[0].tv_nsec = 123456789; ts[1].tv_sec = 1492357068; ts[1].tv_nsec = 234567890; k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100); printf("utimensat(" str_at_fdcwd ", %s, [", qname); print_ts(&ts[0]); printf(", "); print_ts(&ts[1]); printf("], " str_at_symlink_nofollow ") = %s\n", errstr); ts[0].tv_sec = -1; ts[0].tv_nsec = 2000000000; ts[1].tv_sec = (time_t) -0x100000001LL; ts[1].tv_nsec = 2345678900U; k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100); printf("utimensat(" str_at_fdcwd ", %s, [", qname); print_ts(&ts[0]); printf(", "); print_ts(&ts[1]); printf("], " str_at_symlink_nofollow ") = %s\n", errstr); ts[0].tv_sec = 0; ts[0].tv_nsec = 0; ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL; ts[1].tv_nsec = 0; k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100); printf("utimensat(" str_at_fdcwd ", %s, [", qname); print_ts(&ts[0]); printf(", "); print_ts(&ts[1]); printf("], " str_at_symlink_nofollow ") = %s\n", errstr); ts[0].tv_sec = 0xdeadbeefU; ts[0].tv_nsec = 0xfacefeedU; ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL; ts[1].tv_nsec = (long) 0xbadc0dedfacefeedLL; k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100); printf("utimensat(" str_at_fdcwd ", %s, [", qname); print_ts(&ts[0]); printf(", "); print_ts(&ts[1]); printf("], " str_at_symlink_nofollow ") = %s\n", errstr); ts[0].tv_nsec = UTIME_NOW; ts[1].tv_nsec = UTIME_OMIT; k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100); printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit ", " str_at_symlink_nofollow ") = %s\n", qname, errstr); if (F8ILL_KULONG_SUPPORTED) { k_utimensat(kfdcwd, kfname, f8ill_ptr_to_kulong(ts), 0); printf("utimensat(" str_at_fdcwd ", %s, %#jx, 0) = %s\n", qname, (uintmax_t) f8ill_ptr_to_kulong(ts), errstr); } /* flags */ k_utimensat(kfdcwd, kfname, (uintptr_t) ts, (kernel_ulong_t) 0xdefaced00000200); printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit ", " str_at_removedir ") = %s\n", qname, errstr); k_utimensat(kfdcwd, kfname, (uintptr_t) ts, (kernel_ulong_t) 0xdefaced00000600); printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit ", " str_flags1 ") = %s\n", qname, errstr); k_utimensat(kfdcwd, kfname, (uintptr_t) ts, (kernel_ulong_t) -1ULL); printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit ", " str_flags2 ") = %s\n", qname, errstr); puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_utimensat && UTIME_NOW && UTIME_OMIT") #endif