Branch data Line data Source code
1 : : /*
2 : : * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
3 : : * All rights reserved.
4 : : *
5 : : * Redistribution and use in source and binary forms, with or without
6 : : * modification, are permitted provided that the following conditions
7 : : * are met:
8 : : * 1. Redistributions of source code must retain the above copyright
9 : : * notice, this list of conditions and the following disclaimer.
10 : : * 2. Redistributions in binary form must reproduce the above copyright
11 : : * notice, this list of conditions and the following disclaimer in the
12 : : * documentation and/or other materials provided with the distribution.
13 : : * 3. The name of the author may not be used to endorse or promote products
14 : : * derived from this software without specific prior written permission.
15 : : *
16 : : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 : : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 : : * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 : : * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 : : * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 : : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 : : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 : : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 : : * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 : : */
27 : :
28 : : #include "defs.h"
29 : :
30 : : #include DEF_MPERS_TYPE(struct_statfs)
31 : : #include DEF_MPERS_TYPE(struct_statfs64)
32 : :
33 : : #include <linux/types.h>
34 : : #include <asm/statfs.h>
35 : : typedef struct statfs struct_statfs;
36 : : typedef struct statfs64 struct_statfs64;
37 : :
38 : : #include MPERS_DEFS
39 : :
40 : : #include "statfs.h"
41 : :
42 : 30 : MPERS_PRINTER_DECL(bool, fetch_struct_statfs,
43 : : struct tcb *const tcp, const kernel_ulong_t addr,
44 : : struct strace_statfs *const p)
45 : : {
46 : : struct_statfs b;
47 : :
48 [ + + ]: 30 : if (umove_or_printaddr(tcp, addr, &b))
49 : 10 : return false;
50 : :
51 : 20 : p->f_type = zero_extend_signed_to_ull(b.f_type);
52 : 20 : p->f_bsize = zero_extend_signed_to_ull(b.f_bsize);
53 : 20 : p->f_blocks = zero_extend_signed_to_ull(b.f_blocks);
54 : 20 : p->f_bfree = zero_extend_signed_to_ull(b.f_bfree);
55 : 20 : p->f_bavail = zero_extend_signed_to_ull(b.f_bavail);
56 : 20 : p->f_files = zero_extend_signed_to_ull(b.f_files);
57 : 20 : p->f_ffree = zero_extend_signed_to_ull(b.f_ffree);
58 : : #if defined HAVE_STRUCT_STATFS_F_FSID_VAL
59 : 20 : p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.val[0]);
60 : 20 : p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.val[1]);
61 : : #elif defined HAVE_STRUCT_STATFS_F_FSID___VAL
62 : : p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.__val[0]);
63 : : p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.__val[1]);
64 : : #endif
65 : 20 : p->f_namelen = zero_extend_signed_to_ull(b.f_namelen);
66 : : #ifdef HAVE_STRUCT_STATFS_F_FRSIZE
67 : 20 : p->f_frsize = zero_extend_signed_to_ull(b.f_frsize);
68 : : #endif
69 : : #ifdef HAVE_STRUCT_STATFS_F_FLAGS
70 : 20 : p->f_flags = zero_extend_signed_to_ull(b.f_flags);
71 : : #endif
72 : :
73 : 30 : return true;
74 : : }
75 : :
76 : : #if defined ARM || (defined AARCH64 && defined IN_MPERS)
77 : : /* See arch/arm/kernel/sys_oabi-compat.c for details. */
78 : : # define COMPAT_STATFS64_PADDED_SIZE (sizeof(struct_statfs64) + 4)
79 : : #endif
80 : :
81 : 8 : MPERS_PRINTER_DECL(bool, fetch_struct_statfs64,
82 : : struct tcb *const tcp, const kernel_ulong_t addr,
83 : : const kernel_ulong_t size, struct strace_statfs *const p)
84 : : {
85 : : struct_statfs64 b;
86 : :
87 [ + + ]: 8 : if (sizeof(b) != size
88 : : #ifdef COMPAT_STATFS64_PADDED_SIZE
89 : : && sizeof(b) != COMPAT_STATFS64_PADDED_SIZE
90 : : #endif
91 : : ) {
92 : 2 : printaddr(addr);
93 : 2 : return false;
94 : : }
95 : :
96 [ + + ]: 6 : if (umove_or_printaddr(tcp, addr, &b))
97 : 2 : return false;
98 : :
99 : 4 : p->f_type = zero_extend_signed_to_ull(b.f_type);
100 : 4 : p->f_bsize = zero_extend_signed_to_ull(b.f_bsize);
101 : 4 : p->f_blocks = zero_extend_signed_to_ull(b.f_blocks);
102 : 4 : p->f_bfree = zero_extend_signed_to_ull(b.f_bfree);
103 : 4 : p->f_bavail = zero_extend_signed_to_ull(b.f_bavail);
104 : 4 : p->f_files = zero_extend_signed_to_ull(b.f_files);
105 : 4 : p->f_ffree = zero_extend_signed_to_ull(b.f_ffree);
106 : : #if defined HAVE_STRUCT_STATFS64_F_FSID_VAL
107 : 4 : p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.val[0]);
108 : 4 : p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.val[1]);
109 : : #elif defined HAVE_STRUCT_STATFS64_F_FSID___VAL
110 : : p->f_fsid[0] = zero_extend_signed_to_ull(b.f_fsid.__val[0]);
111 : : p->f_fsid[1] = zero_extend_signed_to_ull(b.f_fsid.__val[1]);
112 : : #endif
113 : 4 : p->f_namelen = zero_extend_signed_to_ull(b.f_namelen);
114 : : #ifdef HAVE_STRUCT_STATFS64_F_FRSIZE
115 : 4 : p->f_frsize = zero_extend_signed_to_ull(b.f_frsize);
116 : : #endif
117 : : #ifdef HAVE_STRUCT_STATFS64_F_FLAGS
118 : 4 : p->f_flags = zero_extend_signed_to_ull(b.f_flags);
119 : : #endif
120 : :
121 : 8 : return true;
122 : : }
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