1 /*
2 * Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
3 * Copyright (c) 2012-2017 The strace developers.
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 <linux/ioctl.h>
31
32 /* The UBI api changes, so we have to keep a local copy */
33 #include <linux/version.h>
34 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0)
35 # include "ubi-user.h"
36 #else
37 # include <mtd/ubi-user.h>
38 #endif
39
40 #include "xlat/ubi_volume_types.h"
41 #include "xlat/ubi_volume_props.h"
42
43 int
ubi_ioctl(struct tcb * const tcp,const unsigned int code,const kernel_ulong_t arg)44 ubi_ioctl(struct tcb *const tcp, const unsigned int code,
45 const kernel_ulong_t arg)
46 {
47 if (!verbose(tcp))
48 return RVAL_DECODED;
49
50 switch (code) {
51 case UBI_IOCMKVOL:
52 if (entering(tcp)) {
53 struct ubi_mkvol_req mkvol;
54
55 tprints(", ");
56 if (umove_or_printaddr(tcp, arg, &mkvol))
57 break;
58
59 tprintf("{vol_id=%" PRIi32 ", alignment=%" PRIi32
60 ", bytes=%" PRIi64 ", vol_type=", mkvol.vol_id,
61 mkvol.alignment, (int64_t)mkvol.bytes);
62 printxval(ubi_volume_types,
63 (uint8_t) mkvol.vol_type, "UBI_???_VOLUME");
64 tprintf(", name_len=%" PRIi16 ", name=", mkvol.name_len);
65 if (print_quoted_string(mkvol.name,
66 CLAMP(mkvol.name_len, 0, UBI_MAX_VOLUME_NAME),
67 QUOTE_0_TERMINATED) > 0) {
68 tprints("...");
69 }
70 tprints("}");
71 return 1;
72 }
73 if (!syserror(tcp)) {
74 tprints(" => ");
75 printnum_int(tcp, arg, "%d");
76 }
77 break;
78
79 case UBI_IOCRSVOL: {
80 struct ubi_rsvol_req rsvol;
81
82 tprints(", ");
83 if (umove_or_printaddr(tcp, arg, &rsvol))
84 break;
85
86 tprintf("{vol_id=%" PRIi32 ", bytes=%" PRIi64 "}",
87 rsvol.vol_id, (int64_t)rsvol.bytes);
88 break;
89 }
90
91 case UBI_IOCRNVOL: {
92 struct ubi_rnvol_req rnvol;
93 int c;
94
95 tprints(", ");
96 if (umove_or_printaddr(tcp, arg, &rnvol))
97 break;
98
99 tprintf("{count=%" PRIi32 ", ents=[", rnvol.count);
100 for (c = 0; c < CLAMP(rnvol.count, 0, UBI_MAX_RNVOL); ++c) {
101 if (c)
102 tprints(", ");
103 tprintf("{vol_id=%" PRIi32 ", name_len=%" PRIi16
104 ", name=", rnvol.ents[c].vol_id,
105 rnvol.ents[c].name_len);
106 if (print_quoted_string(rnvol.ents[c].name,
107 CLAMP(rnvol.ents[c].name_len, 0, UBI_MAX_VOLUME_NAME),
108 QUOTE_0_TERMINATED) > 0) {
109 tprints("...");
110 }
111 tprints("}");
112 }
113 tprints("]}");
114 break;
115 }
116
117 case UBI_IOCEBCH: {
118 struct ubi_leb_change_req leb;
119
120 tprints(", ");
121 if (umove_or_printaddr(tcp, arg, &leb))
122 break;
123
124 tprintf("{lnum=%d, bytes=%d}", leb.lnum, leb.bytes);
125 break;
126 }
127
128 case UBI_IOCATT:
129 if (entering(tcp)) {
130 struct ubi_attach_req attach;
131
132 tprints(", ");
133 if (umove_or_printaddr(tcp, arg, &attach))
134 break;
135
136 tprintf("{ubi_num=%" PRIi32 ", mtd_num=%" PRIi32
137 ", vid_hdr_offset=%" PRIi32
138 ", max_beb_per1024=%" PRIi16 "}",
139 attach.ubi_num, attach.mtd_num,
140 attach.vid_hdr_offset, attach.max_beb_per1024);
141 return 1;
142 }
143 if (!syserror(tcp)) {
144 tprints(" => ");
145 printnum_int(tcp, arg, "%d");
146 }
147 break;
148
149 case UBI_IOCEBMAP: {
150 struct ubi_map_req map;
151
152 tprints(", ");
153 if (umove_or_printaddr(tcp, arg, &map))
154 break;
155
156 tprintf("{lnum=%" PRIi32 ", dtype=%" PRIi8 "}",
157 map.lnum, map.dtype);
158 break;
159 }
160
161 case UBI_IOCSETVOLPROP: {
162 struct ubi_set_vol_prop_req prop;
163
164 tprints(", ");
165 if (umove_or_printaddr(tcp, arg, &prop))
166 break;
167
168 tprints("{property=");
169 printxval(ubi_volume_props, prop.property, "UBI_VOL_PROP_???");
170 tprintf(", value=%#" PRIx64 "}", (uint64_t)prop.value);
171 break;
172 }
173
174
175 case UBI_IOCVOLUP:
176 tprints(", ");
177 printnum_int64(tcp, arg, "%" PRIi64);
178 break;
179
180 case UBI_IOCDET:
181 case UBI_IOCEBER:
182 case UBI_IOCEBISMAP:
183 case UBI_IOCEBUNMAP:
184 case UBI_IOCRMVOL:
185 tprints(", ");
186 printnum_int(tcp, arg, "%d");
187 break;
188
189 #ifdef UBI_IOCVOLCRBLK
190 case UBI_IOCVOLCRBLK:
191 #endif
192 #ifdef UBI_IOCVOLRMBLK
193 case UBI_IOCVOLRMBLK:
194 #endif
195 /* no arguments */
196 break;
197
198 default:
199 return RVAL_DECODED;
200 }
201
202 return RVAL_DECODED | 1;
203 }
204