2 * Copyright (c) 2012 The Chromium OS Authors.
3 * Written by Mike Frysinger <vapier@gentoo.org>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
30 #include <sys/ioctl.h>
32 #include <linux/loop.h>
34 static const struct xlat loop_flags_options[] = {
35 XLAT(LO_FLAGS_READ_ONLY),
36 #if HAVE_DECL_LO_FLAGS_AUTOCLEAR
37 XLAT(LO_FLAGS_AUTOCLEAR),
39 #if HAVE_DECL_LO_FLAGS_PARTSCAN
40 XLAT(LO_FLAGS_PARTSCAN),
45 static const struct xlat loop_crypt_type_options[] = {
51 XLAT(LO_CRYPT_CAST128),
54 XLAT(LO_CRYPT_SKIPJACK),
55 XLAT(LO_CRYPT_CRYPTOAPI),
59 int loop_ioctl(struct tcb *tcp, long code, long arg)
61 struct loop_info info;
62 struct loop_info64 info64;
63 char *s = alloca((LO_NAME_SIZE + LO_KEY_SIZE) * 4);
72 if (!verbose(tcp) || umove(tcp, arg, &info) < 0)
75 tprintf(", {number=%d", info.lo_number);
78 tprintf(", device=%#lx, inode=%lu, rdevice=%#lx",
79 (unsigned long) info.lo_device,
81 (unsigned long) info.lo_rdevice);
84 tprintf(", offset=%#x", info.lo_offset);
86 if (!abbrev(tcp) || info.lo_encrypt_type != LO_CRYPT_NONE) {
87 tprints(", encrypt_type=");
88 printxval(loop_crypt_type_options, info.lo_encrypt_type,
90 tprintf(", encrypt_key_size=%d", info.lo_encrypt_key_size);
94 printflags(loop_flags_options, info.lo_flags, "LO_FLAGS_???");
96 string_quote(info.lo_name, s, -1, LO_NAME_SIZE);
97 tprintf(", name=%s", s);
99 if (!abbrev(tcp) || info.lo_encrypt_type != LO_CRYPT_NONE) {
100 string_quote((void *) info.lo_encrypt_key, s, 0, LO_KEY_SIZE);
101 tprintf(", encrypt_key=%s", s);
105 tprintf(", init={%#lx, %#lx}"
106 ", reserved={%#x, %#x, %#x, %#x}}",
107 info.lo_init[0], info.lo_init[1],
108 info.reserved[0], info.reserved[1],
109 info.reserved[2], info.reserved[3]);
115 case LOOP_SET_STATUS64:
116 case LOOP_GET_STATUS64:
117 if (!verbose(tcp) || umove(tcp, arg, &info64) < 0)
123 tprintf("device=%" PRIu64 ", inode=%" PRIu64 ", "
124 "rdevice=%" PRIu64 ", offset=%#" PRIx64 ", "
125 "sizelimit=%" PRIu64 ", number=%" PRIu32,
126 (uint64_t) info64.lo_device,
127 (uint64_t) info64.lo_inode,
128 (uint64_t) info64.lo_rdevice,
129 (uint64_t) info64.lo_offset,
130 (uint64_t) info64.lo_sizelimit,
131 (uint32_t) info64.lo_number);
133 tprintf("offset=%#" PRIx64 ", number=%" PRIu32,
134 (uint64_t) info64.lo_offset,
135 (uint32_t) info64.lo_number);
138 if (!abbrev(tcp) || info64.lo_encrypt_type != LO_CRYPT_NONE) {
139 tprints(", encrypt_type=");
140 printxval(loop_crypt_type_options, info64.lo_encrypt_type,
142 tprintf(", encrypt_key_size=%" PRIu32,
143 info64.lo_encrypt_key_size);
147 printflags(loop_flags_options, info64.lo_flags, "LO_FLAGS_???");
149 string_quote((void *) info64.lo_file_name, s, -1, LO_NAME_SIZE);
150 tprintf(", file_name=%s", s);
152 if (!abbrev(tcp) || info64.lo_encrypt_type != LO_CRYPT_NONE) {
153 string_quote((void *) info64.lo_crypt_name, s, -1, LO_NAME_SIZE);
154 tprintf(", crypt_name=%s", s);
155 string_quote((void *) info64.lo_encrypt_key, s, 0, LO_KEY_SIZE);
156 tprintf(", encrypt_key=%s", s);
160 tprintf(", init={%#" PRIx64 ", %#" PRIx64 "}}",
161 (uint64_t) info64.lo_init[0],
162 (uint64_t) info64.lo_init[1]);
169 #ifdef LOOP_SET_CAPACITY
170 case LOOP_SET_CAPACITY:
172 #ifdef LOOP_CTL_GET_FREE
173 /* newer loop-control stuff */
174 case LOOP_CTL_GET_FREE:
176 /* Takes no arguments */
182 /* newer loop-control stuff */
184 case LOOP_CTL_REMOVE:
186 /* These take simple args, so let default printer handle it */