/*
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* Check decoding of mount syscall.
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*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2018 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 <stdio.h>
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#include <unistd.h>
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#include <sys/mount.h>
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#ifndef MS_MGC_VAL
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# define MS_MGC_VAL 0xC0ED0000
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#endif
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#ifndef MS_RELATIME
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# define MS_RELATIME (1ul << 21)
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#endif
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#if XLAT_RAW
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# define str_unknown "0x300"
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# define str_submount_200 "0x4000200"
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# define str_mgc_val "0xc0ed0000"
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# define str_remount "0x20"
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# define str_bind "0x1000"
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# define str_ro_nosuid_nodev_noexec "0xf"
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# define str_ro_nosuid_nodev_noexec_relatime "0x20000f"
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#elif XLAT_VERBOSE
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# define str_unknown "0x300 /* MS_??? */"
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# define str_submount_200 "0x4000200 /* MS_SUBMOUNT|0x200 */"
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# define str_mgc_val "0xc0ed0000 /* MS_MGC_VAL */"
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# define str_remount "0x20 /* MS_REMOUNT */"
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# define str_bind "0x1000 /* MS_BIND */"
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# define str_ro_nosuid_nodev_noexec \
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"0xf /* MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC */"
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# define str_ro_nosuid_nodev_noexec_relatime \
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"0x20000f /* MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_RELATIME */"
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#else /* !XLAT_RAW && !XLAT_VERBOSE */
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# define str_unknown "0x300 /* MS_??? */"
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# define str_submount_200 "MS_SUBMOUNT|0x200"
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# define str_mgc_val "MS_MGC_VAL"
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# define str_remount "MS_REMOUNT"
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# define str_bind "MS_BIND"
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# define str_ro_nosuid_nodev_noexec "MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC"
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# define str_ro_nosuid_nodev_noexec_relatime \
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"MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_RELATIME"
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#endif /* XLAT_RAW, XLAT_VERBOSE */
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int
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main(void)
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{
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static const char source[] = "mount_source";
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static const char target[] = "mount_target";
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static const char fstype[] = "mount_fstype";
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static const char data[] = "mount_data";
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TAIL_ALLOC_OBJECT_CONST_PTR(char, bogus);
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bogus[0] = 'a';
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int rc = mount(NULL, NULL, NULL, 0, NULL);
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printf("mount(NULL, NULL, NULL, 0, NULL) = %s\n",
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sprintrc(rc));
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rc = mount(bogus, bogus, bogus, 768, bogus);
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printf("mount(%p, %p, %p, %s, %p) = %s\n",
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bogus, bogus, bogus, str_unknown, bogus, sprintrc(rc));
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rc = mount(bogus + 1, bogus + 1, bogus + 1, 0x4000200, bogus + 1);
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printf("mount(%p, %p, %p, %s, %p) = %s\n",
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bogus + 1, bogus + 1, bogus + 1, str_submount_200,
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bogus + 1, sprintrc(rc));
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rc = mount(source, target, fstype, 15, data);
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printf("mount(\"%s\", \"%s\", \"%s\", %s, \"%s\") = %s\n",
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source, target, fstype, str_ro_nosuid_nodev_noexec,
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data, sprintrc(rc));
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rc = mount(source, target, fstype, MS_RELATIME | 15, data);
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printf("mount(\"%s\", \"%s\", \"%s\", %s, \"%s\") = %s\n",
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source, target, fstype,
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str_ro_nosuid_nodev_noexec_relatime,
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data, sprintrc(rc));
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rc = mount(source, target, fstype, MS_MGC_VAL, data);
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printf("mount(\"%s\", \"%s\", \"%s\", %s, \"%s\") = %s\n",
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source, target, fstype, str_mgc_val, data, sprintrc(rc));
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rc = mount(source, target, fstype, MS_MGC_VAL | 15, data);
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printf("mount(\"%s\", \"%s\", \"%s\", %s, \"%s\") = %s\n",
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source, target, fstype,
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str_mgc_val "|" str_ro_nosuid_nodev_noexec,
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data, sprintrc(rc));
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rc = mount(source, target, NULL, MS_REMOUNT, data);
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printf("mount(\"%s\", \"%s\", NULL, %s, \"%s\") = %s\n",
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source, target, str_remount, data, sprintrc(rc));
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rc = mount(source, target, fstype, MS_REMOUNT, data);
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printf("mount(\"%s\", \"%s\", %p, %s, \"%s\") = %s\n",
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source, target, fstype, str_remount, data, sprintrc(rc));
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rc = mount(source, target, NULL, MS_BIND, data);
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printf("mount(\"%s\", \"%s\", NULL, %s, %p) = %s\n",
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source, target, str_bind, data, sprintrc(rc));
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rc = mount(source, target, fstype, MS_BIND, NULL);
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printf("mount(\"%s\", \"%s\", %p, %s, NULL) = %s\n",
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source, target, fstype, str_bind, sprintrc(rc));
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puts("+++ exited with 0 +++");
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return 0;
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}
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