104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
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* Copyright (c) 2014-2016 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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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "defs.h"
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#include DEF_MPERS_TYPE(struct_statfs)
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#include DEF_MPERS_TYPE(struct_statfs64)
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#include <linux/types.h>
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#include <asm/statfs.h>
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typedef struct statfs struct_statfs;
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typedef struct statfs64 struct_statfs64;
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#include MPERS_DEFS
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#include "statfs.h"
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MPERS_PRINTER_DECL(bool, fetch_struct_statfs,
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struct tcb *const tcp, const kernel_ulong_t addr,
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struct strace_statfs *const p)
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{
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struct_statfs b;
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if (umove_or_printaddr(tcp, addr, &b))
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return false;
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p->f_type = zero_extend_signed_to_ull(b.f_type);
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p->f_bsize = zero_extend_signed_to_ull(b.f_bsize);
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p->f_blocks = zero_extend_signed_to_ull(b.f_blocks);
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p->f_bfree = zero_extend_signed_to_ull(b.f_bfree);
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p->f_bavail = zero_extend_signed_to_ull(b.f_bavail);
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p->f_files = zero_extend_signed_to_ull(b.f_files);
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p->f_ffree = zero_extend_signed_to_ull(b.f_ffree);
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#if defined HAVE_STRUCT_STATFS_F_FSID_VAL
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p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.val[0]);
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p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.val[1]);
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#elif defined HAVE_STRUCT_STATFS_F_FSID___VAL
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p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.__val[0]);
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p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.__val[1]);
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#endif
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p->f_namelen = zero_extend_signed_to_ull(b.f_namelen);
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#ifdef HAVE_STRUCT_STATFS_F_FRSIZE
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p->f_frsize = zero_extend_signed_to_ull(b.f_frsize);
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#endif
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#ifdef HAVE_STRUCT_STATFS_F_FLAGS
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p->f_flags = zero_extend_signed_to_ull(b.f_flags);
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#endif
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return true;
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}
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#if defined ARM || (defined AARCH64 && defined IN_MPERS)
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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_statfs64) + 4)
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#endif
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MPERS_PRINTER_DECL(bool, fetch_struct_statfs64,
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struct tcb *const tcp, const kernel_ulong_t addr,
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const kernel_ulong_t size, struct strace_statfs *const p)
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{
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struct_statfs64 b;
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if (sizeof(b) != size
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#ifdef COMPAT_STATFS64_PADDED_SIZE
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&& sizeof(b) != COMPAT_STATFS64_PADDED_SIZE
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#endif
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) {
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printaddr(addr);
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return false;
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}
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if (umove_or_printaddr(tcp, addr, &b))
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return false;
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p->f_type = zero_extend_signed_to_ull(b.f_type);
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p->f_bsize = zero_extend_signed_to_ull(b.f_bsize);
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p->f_blocks = zero_extend_signed_to_ull(b.f_blocks);
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p->f_bfree = zero_extend_signed_to_ull(b.f_bfree);
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p->f_bavail = zero_extend_signed_to_ull(b.f_bavail);
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p->f_files = zero_extend_signed_to_ull(b.f_files);
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p->f_ffree = zero_extend_signed_to_ull(b.f_ffree);
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#if defined HAVE_STRUCT_STATFS64_F_FSID_VAL
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p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.val[0]);
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p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.val[1]);
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#elif defined HAVE_STRUCT_STATFS64_F_FSID___VAL
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p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.__val[0]);
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p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.__val[1]);
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#endif
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p->f_namelen = zero_extend_signed_to_ull(b.f_namelen);
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#ifdef HAVE_STRUCT_STATFS64_F_FRSIZE
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p->f_frsize = zero_extend_signed_to_ull(b.f_frsize);
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#endif
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#ifdef HAVE_STRUCT_STATFS64_F_FLAGS
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p->f_flags = zero_extend_signed_to_ull(b.f_flags);
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#endif
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return true;
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}
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