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strace/mount.c

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Add copyright headers to some files which lack them Before this change, all files that exist since 20th century had copyright headers, while most files that appeared later didn't. This change fixes the inconsistency by adding missing copyright headers. It doesn't mean that copyright headers became maintained. In my view, git history provides much better information on this subject and is much more accurate than copyright headers.
2015-12-17 20:56:48 +03:00
/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 2005 Roland McGrath <roland@redhat.com>
* Copyright (c) 2007-2015 Dmitry V. Levin <ldv@altlinux.org>
Update copyright headers Headers updated automatically using maint/update_copyright_years.sh script.
2018-06-14 14:00:00 +03:00
* Copyright (c) 2014-2018 The strace developers.
Add copyright headers to some files which lack them Before this change, all files that exist since 20th century had copyright headers, while most files that appeared later didn't. This change fixes the inconsistency by adding missing copyright headers. It doesn't mean that copyright headers became maintained. In my view, git history provides much better information on this subject and is much more accurate than copyright headers.
2015-12-17 20:56:48 +03:00
* All rights reserved.
*
Change the license of strace to LGPL-2.1-or-later strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later, see COPYING for more details. strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
2018-12-10 03:00:00 +03:00
* SPDX-License-Identifier: LGPL-2.1-or-later
Add copyright headers to some files which lack them Before this change, all files that exist since 20th century had copyright headers, while most files that appeared later didn't. This change fixes the inconsistency by adding missing copyright headers. It doesn't mean that copyright headers became maintained. In my view, git history provides much better information on this subject and is much more accurate than copyright headers.
2015-12-17 20:56:48 +03:00
*/
Move mount parser to a separate file * mount.c: New file. * Makefile.am (strace_SOURCES): Add it. * system.c: Move sys_mount and related code to mount.c.
2014-12-04 00:12:07 +03:00
#include "defs.h"
Update mount flags constants * mount.c: Remove definitions of mount flags constants. * xlat/mount_flags.in: Update from linux v4.0, add default values.
2015-06-16 03:31:45 +03:00
#define MS_MGC_VAL 0xc0ed0000 /* old magic mount flag number */
#define MS_MGC_MSK 0xffff0000 /* old magic mount flag mask */
Move mount parser to a separate file * mount.c: New file. * Makefile.am (strace_SOURCES): Add it. * system.c: Move sys_mount and related code to mount.c.
2014-12-04 00:12:07 +03:00
#include "xlat/mount_flags.h"
Declare syscall parsers using SYS_FUNC macro Introduce SYS_FUNC macro to declare and define all syscall parsers. * Makefile.am (BUILT_SOURCES, CLEANFILES): Add sys_func.h. (sys_func.h): New rule. * defs.h (SYS_FUNC_NAME, SYS_FUNC): New macros. * linux/syscall.h: Include "sys_func.h". [NEED_UID16_PARSERS]: Use SYS_FUNC to declare uid16 syscall parsers. Remove other declarations. * linux/alpha/syscallent.h (160, 161): Add sys_ prefix to osf_statfs and osf_fstatfs syscall parsers. * *.c: Use SYS_FUNC to define syscall parsers.
2015-04-07 04:36:50 +03:00
SYS_FUNC(mount)
Move mount parser to a separate file * mount.c: New file. * Makefile.am (strace_SOURCES): Add it. * system.c: Move sys_mount and related code to mount.c.
2014-12-04 00:12:07 +03:00
{
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
bool ignore_type = false;
bool ignore_data = false;
bool old_magic = false;
Automatically replace kernel_(scno|ureg)_t with kernel_ulong_t Remove temporary types created for transition from long to kernel_ulong_t. Automatically replace kernel_scno_t and kernel_ureg_t with kernel_ulong_t using $ git grep -El 'kernel_(scno|ureg)_t' | xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g' * kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove. All users updated.
2016-12-26 13:26:03 +03:00
kernel_ulong_t flags = tcp->u_arg[3];
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
/* Discard magic */
if ((flags & MS_MGC_MSK) == MS_MGC_VAL) {
flags &= ~MS_MGC_MSK;
old_magic = true;
Move mount parser to a separate file * mount.c: New file. * Makefile.am (strace_SOURCES): Add it. * system.c: Move sys_mount and related code to mount.c.
2014-12-04 00:12:07 +03:00
}
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
if (flags & MS_REMOUNT)
ignore_type = true;
else if (flags & (MS_BIND | MS_MOVE | MS_SHARED
| MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
ignore_type = ignore_data = true;
printpath(tcp, tcp->u_arg[0]);
tprints(", ");
printpath(tcp, tcp->u_arg[1]);
tprints(", ");
if (ignore_type)
printaddr(tcp->u_arg[2]);
else
printstr: rename to printstrn, add printstr as a thin wrapper As about half of all printstr uses cases are invocations with the last argument set to -1, create a dedicated function for this use case. * defs.h (printstr): Rename to printstrn. All callers updated. (printstr): New static inline function. All callers updated.
2016-12-20 19:43:26 +03:00
printstr(tcp, tcp->u_arg[2]);
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
tprints(", ");
if (old_magic) {
mount: use print_xlat for printing MS_MGC_VAL * mount.c (SYS_FUNC(mount)): Use print_xlat for printing MS_MGC_VAL named constant.
2018-03-10 07:38:39 +03:00
print_xlat(MS_MGC_VAL);
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
if (flags)
tprints("|");
}
if (flags || !old_magic)
mount: change flags type from unsigned long to kernel_ureg_t * mount.c (SYS_FUNC(mount)): Change the type of flags from unsigned long to kernel_ureg_t, use printflags64 instead of printflags_long to print it.
2016-12-25 01:58:16 +03:00
printflags64(mount_flags, flags, "MS_???");
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
tprints(", ");
if (ignore_data)
printaddr(tcp->u_arg[4]);
else
printstr: rename to printstrn, add printstr as a thin wrapper As about half of all printstr uses cases are invocations with the last argument set to -1, create a dedicated function for this use case. * defs.h (printstr): Rename to printstrn. All callers updated. (printstr): New static inline function. All callers updated.
2016-12-20 19:43:26 +03:00
printstr(tcp, tcp->u_arg[4]);
mount.c: make use of RVAL_DECODED * mount.c (sys_mount): Update for RVAL_DECODED.
2015-07-20 02:00:35 +03:00
return RVAL_DECODED;
Move mount parser to a separate file * mount.c: New file. * Makefile.am (strace_SOURCES): Add it. * system.c: Move sys_mount and related code to mount.c.
2014-12-04 00:12:07 +03:00
}
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