Dmitry V. Levin
f3ac12990d
* statfs.c (print_statfs_flags): New function. (printstatfs, printstatfs64, printcompat_statfs64): Use it. * xlat/statfs_flags.in (ST_VALID): Move to the head of the list. * tests/statfs.expected: Update.
245 lines
6.7 KiB
C
245 lines
6.7 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
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* Copyright (c) 2003 Ulrich Drepper <drepper@redhat.com>
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* Copyright (c) 2012 Andreas Schwab <schwab@linux-m68k.org>
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* Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
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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 "defs.h"
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#ifdef HAVE_SYS_VFS_H
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# include <sys/vfs.h>
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#endif
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#include "xlat/fsmagic.h"
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#include "xlat/statfs_flags.h"
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static const char *
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sprintfstype(const unsigned int magic)
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{
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static char buf[32];
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const char *s;
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s = xlat_search(fsmagic, ARRAY_SIZE(fsmagic), magic);
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if (s)
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return s;
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sprintf(buf, "%#x", magic);
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return buf;
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}
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static void
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print_statfs_flags(const char *const prefix, const unsigned int flags)
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{
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if (flags & ST_VALID) {
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tprints(prefix);
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printflags(statfs_flags, flags, "ST_???");
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}
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}
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static void
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printstatfs(struct tcb *tcp, const long addr)
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{
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struct statfs statbuf;
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if (umove_or_printaddr(tcp, addr, &statbuf))
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return;
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tprintf("{f_type=%s, f_bsize=%lu, f_blocks=%lu, f_bfree=%lu, ",
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sprintfstype(statbuf.f_type),
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(unsigned long)statbuf.f_bsize,
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(unsigned long)statbuf.f_blocks,
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(unsigned long)statbuf.f_bfree);
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tprintf("f_bavail=%lu, f_files=%lu, f_ffree=%lu, f_fsid={%d, %d}",
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(unsigned long)statbuf.f_bavail,
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(unsigned long)statbuf.f_files,
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(unsigned long)statbuf.f_ffree,
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statbuf.f_fsid.__val[0], statbuf.f_fsid.__val[1]);
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tprintf(", f_namelen=%lu", (unsigned long)statbuf.f_namelen);
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#ifdef _STATFS_F_FRSIZE
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tprintf(", f_frsize=%lu", (unsigned long)statbuf.f_frsize);
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#endif
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#ifdef _STATFS_F_FLAGS
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print_statfs_flags(", f_flags=", statbuf.f_flags);
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#endif
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tprints("}");
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}
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SYS_FUNC(statfs)
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{
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if (entering(tcp)) {
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printpath(tcp, tcp->u_arg[0]);
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tprints(", ");
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} else {
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printstatfs(tcp, tcp->u_arg[1]);
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}
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return 0;
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}
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SYS_FUNC(fstatfs)
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{
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if (entering(tcp)) {
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printfd(tcp, tcp->u_arg[0]);
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tprints(", ");
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} else {
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printstatfs(tcp, tcp->u_arg[1]);
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}
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return 0;
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}
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#ifdef HAVE_STRUCT_STATFS64
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static void
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printstatfs64(struct tcb *tcp, long addr)
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{
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struct statfs64 statbuf;
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if (umove_or_printaddr(tcp, addr, &statbuf))
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return;
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tprintf("{f_type=%s, f_bsize=%llu, f_blocks=%llu, f_bfree=%llu, ",
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sprintfstype(statbuf.f_type),
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(unsigned long long)statbuf.f_bsize,
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(unsigned long long)statbuf.f_blocks,
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(unsigned long long)statbuf.f_bfree);
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tprintf("f_bavail=%llu, f_files=%llu, f_ffree=%llu, f_fsid={%d, %d}",
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(unsigned long long)statbuf.f_bavail,
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(unsigned long long)statbuf.f_files,
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(unsigned long long)statbuf.f_ffree,
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statbuf.f_fsid.__val[0], statbuf.f_fsid.__val[1]);
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tprintf(", f_namelen=%lu", (unsigned long)statbuf.f_namelen);
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#ifdef _STATFS_F_FRSIZE
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tprintf(", f_frsize=%llu", (unsigned long long)statbuf.f_frsize);
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#endif
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#ifdef _STATFS_F_FLAGS
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print_statfs_flags(", f_flags=", statbuf.f_flags);
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#endif
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tprints("}");
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}
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struct compat_statfs64 {
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uint32_t f_type;
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uint32_t f_bsize;
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uint64_t f_blocks;
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uint64_t f_bfree;
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uint64_t f_bavail;
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uint64_t f_files;
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uint64_t f_ffree;
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fsid_t f_fsid;
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uint32_t f_namelen;
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uint32_t f_frsize;
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uint32_t f_flags;
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uint32_t f_spare[4];
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}
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#if defined AARCH64 || defined X86_64 || defined X32 || defined IA64
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ATTRIBUTE_PACKED ATTRIBUTE_ALIGNED(4)
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#endif
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;
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#if defined AARCH64 || defined ARM
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/* See arch/arm/kernel/sys_oabi-compat.c for details. */
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# define COMPAT_STATFS64_PADDED_SIZE (sizeof(struct compat_statfs64) + 4)
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#endif
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static void
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printcompat_statfs64(struct tcb *tcp, const long addr)
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{
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struct compat_statfs64 statbuf;
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if (umove_or_printaddr(tcp, addr, &statbuf))
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return;
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tprintf("{f_type=%s, f_bsize=%lu, f_blocks=%llu, f_bfree=%llu, ",
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sprintfstype(statbuf.f_type),
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(unsigned long)statbuf.f_bsize,
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(unsigned long long)statbuf.f_blocks,
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(unsigned long long)statbuf.f_bfree);
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tprintf("f_bavail=%llu, f_files=%llu, f_ffree=%llu, f_fsid={%d, %d}",
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(unsigned long long)statbuf.f_bavail,
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(unsigned long long)statbuf.f_files,
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(unsigned long long)statbuf.f_ffree,
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statbuf.f_fsid.__val[0], statbuf.f_fsid.__val[1]);
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tprintf(", f_namelen=%lu", (unsigned long)statbuf.f_namelen);
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tprintf(", f_frsize=%lu", (unsigned long)statbuf.f_frsize);
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print_statfs_flags(", f_flags=", statbuf.f_flags);
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tprints("}");
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}
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static int
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do_statfs64_fstatfs64(struct tcb *tcp)
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{
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if (entering(tcp)) {
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tprintf(", %lu, ", tcp->u_arg[1]);
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} else {
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if (tcp->u_arg[1] == sizeof(struct statfs64))
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printstatfs64(tcp, tcp->u_arg[2]);
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else if (tcp->u_arg[1] == sizeof(struct compat_statfs64)
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#ifdef COMPAT_STATFS64_PADDED_SIZE
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|| tcp->u_arg[1] == COMPAT_STATFS64_PADDED_SIZE
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#endif
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)
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printcompat_statfs64(tcp, tcp->u_arg[2]);
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else
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tprints("{???}");
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}
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return 0;
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}
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SYS_FUNC(statfs64)
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{
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if (entering(tcp))
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printpath(tcp, tcp->u_arg[0]);
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return do_statfs64_fstatfs64(tcp);
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}
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SYS_FUNC(fstatfs64)
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{
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if (entering(tcp))
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printfd(tcp, tcp->u_arg[0]);
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return do_statfs64_fstatfs64(tcp);
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}
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#endif /* HAVE_STRUCT_STATFS64 */
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#ifdef ALPHA
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SYS_FUNC(osf_statfs)
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{
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if (entering(tcp)) {
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printpath(tcp, tcp->u_arg[0]);
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tprints(", ");
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} else {
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printstatfs(tcp, tcp->u_arg[1]);
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tprintf(", %lu", tcp->u_arg[2]);
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}
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return 0;
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}
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SYS_FUNC(osf_fstatfs)
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{
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if (entering(tcp)) {
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tprintf("%lu, ", tcp->u_arg[0]);
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} else {
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printstatfs(tcp, tcp->u_arg[1]);
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tprintf(", %lu", tcp->u_arg[2]);
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}
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return 0;
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}
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#endif /* ALPHA */
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