2 * This file is part of ioctl_loop strace test.
4 * Copyright (c) 2016 JingPiao Chen <chenjingpiao@gmail.com>
5 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
6 * Copyright (c) 2016-2018 The strace developers.
9 * SPDX-License-Identifier: GPL-2.0-or-later
18 #include <sys/ioctl.h>
19 #include <sys/sysmacros.h>
20 #include <asm/unistd.h>
21 #include <linux/ioctl.h>
22 #include <linux/loop.h>
23 #include "print_fields.h"
24 #include "xlat/loop_cmds.h"
31 sys_ioctl(kernel_long_t fd, kernel_ulong_t cmd, kernel_ulong_t arg)
33 return syscall(__NR_ioctl, fd, cmd, arg);
37 print_loop_info(struct loop_info * const info, bool print_encrypt,
38 const char *encrypt_type, const char *encrypt_key,
44 printf("{lo_number=%d", info->lo_number);
46 printf(", lo_device=makedev(%#x, %#x), lo_inode=%lu, "
47 "lo_rdevice=makedev(%#x, %#x)",
48 major(info->lo_device), minor(info->lo_device),
50 major(info->lo_rdevice), minor(info->lo_rdevice));
53 printf(", lo_offset=%#x", info->lo_offset);
55 if (VERBOSE || print_encrypt) {
56 printf(", lo_encrypt_type=");
58 printf("%s", encrypt_type);
60 printf("%#x /* LO_CRYPT_??? */", info->lo_encrypt_type);
62 printf(", lo_encrypt_key_size=%" PRIu32,
63 (uint32_t) info->lo_encrypt_key_size);
66 printf(", lo_flags=");
70 printf("%#x /* LO_FLAGS_??? */", info->lo_flags);
72 PRINT_FIELD_CSTRING(", ", *info, lo_name);
74 if (VERBOSE || print_encrypt)
75 printf(", lo_encrypt_key=\"%.*s\"",
76 encrypt_key ? (int) strlen(encrypt_key) :
77 (int) sizeof(info->lo_encrypt_key),
78 encrypt_key ? encrypt_key :
79 (char *) info->lo_encrypt_key);
82 printf(", lo_init=[%#lx, %#lx]"
83 ", reserved=[%#hhx, %#hhx, %#hhx, %#hhx]}",
84 info->lo_init[0], info->lo_init[1],
85 info->reserved[0], info->reserved[1],
86 info->reserved[2], info->reserved[3]);
94 print_loop_info64(struct loop_info64 * const info64, bool print_encrypt,
95 const char *encrypt_type, const char *encrypt_key,
102 printf("{lo_device=makedev(%#x, %#x), lo_inode=%" PRIu64
103 ", lo_rdevice=makedev(%#x, %#x), lo_offset=%#" PRIx64
104 ", lo_sizelimit=%" PRIu64 ", lo_number=%" PRIu32,
105 major(info64->lo_device), minor(info64->lo_device),
106 (uint64_t) info64->lo_inode,
107 major(info64->lo_rdevice), minor(info64->lo_rdevice),
108 (uint64_t) info64->lo_offset,
109 (uint64_t) info64->lo_sizelimit,
110 (uint32_t) info64->lo_number);
111 # else /* !VERBOSE */
112 printf("{lo_offset=%#" PRIx64 ", lo_number=%" PRIu32,
113 (uint64_t) info64->lo_offset,
114 (uint32_t) info64->lo_number);
115 # endif /* VERBOSE */
117 if (VERBOSE || print_encrypt) {
118 printf(", lo_encrypt_type=");
120 printf("%s", encrypt_type);
122 printf("%#x /* LO_CRYPT_??? */",
123 info64->lo_encrypt_type);
125 printf(", lo_encrypt_key_size=%" PRIu32,
126 info64->lo_encrypt_key_size);
129 printf(", lo_flags=");
133 printf("%#x /* LO_FLAGS_??? */", info64->lo_flags);
134 PRINT_FIELD_CSTRING(", ", *info64, lo_file_name);
136 if (VERBOSE || print_encrypt) {
137 PRINT_FIELD_CSTRING(", ", *info64, lo_crypt_name);
138 printf(", lo_encrypt_key=\"%.*s\"",
139 encrypt_key ? (int) strlen(encrypt_key) :
140 (int) sizeof(info64->lo_encrypt_key),
141 encrypt_key ? encrypt_key :
142 (char *) info64->lo_encrypt_key);
146 printf(", lo_init=[%#" PRIx64 ", %#" PRIx64 "]}",
147 (uint64_t) info64->lo_init[0],
148 (uint64_t) info64->lo_init[1]);
149 # else /* !VERBOSE */
151 # endif /* VERBOSE */
158 static const kernel_ulong_t unknown_loop_cmd =
159 (kernel_ulong_t) 0xbadc0dedfeed4cedULL;
160 static const kernel_ulong_t magic =
161 (kernel_ulong_t) 0xdeadbeefbadc0dedULL;
162 static const kernel_ulong_t kernel_mask =
163 ((kernel_ulong_t) -1) - ((unsigned long) -1L);
165 TAIL_ALLOC_OBJECT_CONST_PTR(struct loop_info, info);
166 TAIL_ALLOC_OBJECT_CONST_PTR(struct loop_info64, info64);
168 /* Unknown loop commands */
169 sys_ioctl(-1, unknown_loop_cmd, magic);
170 printf("ioctl(-1, _IOC(%s_IOC_READ|_IOC_WRITE, 0x4c, %#x, %#x), "
171 "%#lx) = -1 EBADF (%m)\n",
172 _IOC_DIR((unsigned int) unknown_loop_cmd) & _IOC_NONE ?
174 _IOC_NR((unsigned int) unknown_loop_cmd),
175 _IOC_SIZE((unsigned int) unknown_loop_cmd),
176 (unsigned long) magic);
178 sys_ioctl(-1, LOOP_SET_BLOCK_SIZE + 1, magic);
179 printf("ioctl(-1, _IOC(%s, 0x4c, %#x, %#x), %#lx) = "
181 _IOC_NONE ? "0" : "_IOC_NONE",
182 _IOC_NR(LOOP_SET_BLOCK_SIZE + 1),
183 _IOC_SIZE(LOOP_SET_BLOCK_SIZE + 1),
184 (unsigned long) magic);
186 sys_ioctl(-1, LOOP_CTL_GET_FREE + 1, magic);
187 printf("ioctl(-1, _IOC(%s, 0x4c, %#x, %#x), %#lx) = "
189 _IOC_NONE ? "0" : "_IOC_NONE",
190 _IOC_NR(LOOP_CTL_GET_FREE + 1),
191 _IOC_SIZE(LOOP_CTL_GET_FREE + 1),
192 (unsigned long) magic);
195 sys_ioctl(-1, LOOP_SET_FD, magic);
196 printf("ioctl(-1, LOOP_SET_FD, %d) = -1 EBADF (%m)\n",
197 (unsigned int) magic);
200 ioctl(-1, LOOP_CLR_FD);
201 printf("ioctl(-1, LOOP_CLR_FD) = -1 EBADF (%m)\n");
203 /* LOOP_SET_STATUS */
204 ioctl(-1, LOOP_SET_STATUS, NULL);
205 printf("ioctl(-1, LOOP_SET_STATUS, NULL) = -1 EBADF (%m)\n");
207 fill_memory(info, sizeof(*info));
208 info->lo_flags = 0xdeface00;
209 info->lo_name[0] = '\0';
210 info->lo_encrypt_key[0] = '\0';
211 info->lo_encrypt_key_size = 1;
213 printf("ioctl(-1, LOOP_SET_STATUS, ");
214 print_loop_info(info, true, NULL, "\\0", NULL);
215 ioctl(-1, LOOP_SET_STATUS, info);
216 printf(") = -1 EBADF (%m)\n");
218 fill_memory(info, sizeof(*info));
219 info->lo_encrypt_type = LO_CRYPT_NONE;
220 info->lo_flags = LO_FLAGS_READ_ONLY;
221 memset(info->lo_name, 'A', sizeof(info->lo_name));
222 memset(info->lo_encrypt_key, 'B', sizeof(info->lo_encrypt_key));
224 ioctl(-1, LOOP_SET_STATUS, (void *) info + ALIGNOF(info));
225 printf("ioctl(-1, LOOP_SET_STATUS, %p) = -1 EBADF (%m)\n",
226 (void *) info + ALIGNOF(info));
228 printf("ioctl(-1, LOOP_SET_STATUS, ");
229 print_loop_info(info, false, "LO_CRYPT_NONE", NULL,
230 "LO_FLAGS_READ_ONLY");
231 ioctl(-1, LOOP_SET_STATUS, info);
232 printf(") = -1 EBADF (%m)\n");
234 /* LOOP_GET_STATUS */
235 ioctl(-1, LOOP_GET_STATUS, NULL);
236 printf("ioctl(-1, LOOP_GET_STATUS, NULL) = -1 EBADF (%m)\n");
238 ioctl(-1, LOOP_GET_STATUS, (unsigned long) info | kernel_mask);
239 printf("ioctl(-1, LOOP_GET_STATUS, %p) = -1 EBADF (%m)\n", info);
241 /* LOOP_SET_STATUS64 */
242 ioctl(-1, LOOP_SET_STATUS64, NULL);
243 printf("ioctl(-1, LOOP_SET_STATUS64, NULL) = -1 EBADF (%m)\n");
245 fill_memory(info64, sizeof(*info64));
246 info64->lo_flags = 0xdec0de00;
247 info64->lo_file_name[0] = '\0';
248 info64->lo_crypt_name[0] = '\0';
249 info64->lo_encrypt_key[0] = '\0';
250 info64->lo_encrypt_key_size = 1;
252 printf("ioctl(-1, LOOP_SET_STATUS64, ");
253 print_loop_info64(info64, true, NULL, "\\0", NULL);
254 ioctl(-1, LOOP_SET_STATUS64, info64);
255 printf(") = -1 EBADF (%m)\n");
257 fill_memory(info64, sizeof(*info64));
258 info64->lo_flags = LO_FLAGS_READ_ONLY;
259 info64->lo_encrypt_type = LO_CRYPT_NONE;
260 memset(info64->lo_file_name, 'C', sizeof(info64->lo_file_name));
261 memset(info64->lo_crypt_name, 'D', sizeof(info64->lo_crypt_name));
262 memset(info64->lo_encrypt_key, 'E', sizeof(info64->lo_encrypt_key));
264 ioctl(-1, LOOP_SET_STATUS64, (void *) info64 + ALIGNOF(info64));
265 printf("ioctl(-1, LOOP_SET_STATUS64, %p) = -1 EBADF (%m)\n",
266 (void *) info64 + ALIGNOF(info64));
268 printf("ioctl(-1, LOOP_SET_STATUS64, ");
269 print_loop_info64(info64, false, "LO_CRYPT_NONE", NULL,
270 "LO_FLAGS_READ_ONLY");
271 ioctl(-1, LOOP_SET_STATUS64, info64);
272 printf(") = -1 EBADF (%m)\n");
274 /* LOOP_GET_STATUS64 */
275 ioctl(-1, LOOP_GET_STATUS64, NULL);
276 printf("ioctl(-1, LOOP_GET_STATUS64, NULL) = -1 EBADF (%m)\n");
278 ioctl(-1, LOOP_GET_STATUS64, (unsigned long) info64 | kernel_mask);
279 printf("ioctl(-1, LOOP_GET_STATUS64, %p) = -1 EBADF (%m)\n", info64);
282 sys_ioctl(-1, LOOP_CHANGE_FD, magic);
283 printf("ioctl(-1, LOOP_CHANGE_FD, %d) = -1 EBADF (%m)\n",
284 (unsigned int) magic);
286 /* LOOP_SET_CAPACITY */
287 ioctl(-1, LOOP_SET_CAPACITY);
288 printf("ioctl(-1, LOOP_SET_CAPACITY) = -1 EBADF (%m)\n");
290 /* LOOP_SET_DIRECT_IO */
291 sys_ioctl(-1, LOOP_SET_DIRECT_IO, magic);
292 printf("ioctl(-1, LOOP_SET_DIRECT_IO, %lu) = -1 EBADF (%m)\n",
293 (unsigned long) magic);
295 /* LOOP_SET_BLOCK_SIZE */
296 sys_ioctl(-1, LOOP_SET_BLOCK_SIZE, magic);
297 printf("ioctl(-1, LOOP_SET_BLOCK_SIZE, %lu) = -1 EBADF (%m)\n",
298 (unsigned long) magic);
301 sys_ioctl(-1, LOOP_CTL_ADD, magic);
302 printf("ioctl(-1, LOOP_CTL_ADD, %d) = -1 EBADF (%m)\n",
303 (unsigned int) magic);
305 /* LOOP_CTL_REMOVE */
306 sys_ioctl(-1, LOOP_CTL_REMOVE, magic);
307 printf("ioctl(-1, LOOP_CTL_REMOVE, %d) = -1 EBADF (%m)\n",
308 (unsigned int) magic);
310 /* LOOP_CTL_GET_FREE */
311 ioctl(-1, LOOP_CTL_GET_FREE);
312 printf("ioctl(-1, LOOP_CTL_GET_FREE) = -1 EBADF (%m)\n");
314 puts("+++ exited with 0 +++");