Commit a3fb0cf9072c4aa89776526592b359b7caea1bb9
1 parent
ea2384d3
removed unneeded tools
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1038 c046a42c-6fe2-441c-8c8c-71466251a162
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4 changed files
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0 additions
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492 deletions
cow.h deleted
100644 → 0
qemu-mkcow.c deleted
100644 → 0
1 | -/* | ||
2 | - * create a COW disk image | ||
3 | - * | ||
4 | - * Copyright (c) 2003 Fabrice Bellard | ||
5 | - * | ||
6 | - * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
7 | - * of this software and associated documentation files (the "Software"), to deal | ||
8 | - * in the Software without restriction, including without limitation the rights | ||
9 | - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
10 | - * copies of the Software, and to permit persons to whom the Software is | ||
11 | - * furnished to do so, subject to the following conditions: | ||
12 | - * | ||
13 | - * The above copyright notice and this permission notice shall be included in | ||
14 | - * all copies or substantial portions of the Software. | ||
15 | - * | ||
16 | - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
17 | - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
18 | - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
19 | - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
20 | - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
21 | - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
22 | - * THE SOFTWARE. | ||
23 | - */ | ||
24 | -#include <stdlib.h> | ||
25 | -#include <stdio.h> | ||
26 | -#include <stdarg.h> | ||
27 | -#include <string.h> | ||
28 | -#include <getopt.h> | ||
29 | -#include <inttypes.h> | ||
30 | -#include <unistd.h> | ||
31 | -#include <fcntl.h> | ||
32 | -#include <signal.h> | ||
33 | -#include <time.h> | ||
34 | -#include <sys/time.h> | ||
35 | -#include <errno.h> | ||
36 | -#include <sys/stat.h> | ||
37 | -#include <netinet/in.h> | ||
38 | - | ||
39 | -#include "cow.h" | ||
40 | - | ||
41 | -#include "bswap.h" | ||
42 | - | ||
43 | -int cow_create(int cow_fd, const char *image_filename, | ||
44 | - int64_t image_sectors) | ||
45 | -{ | ||
46 | - struct cow_header_v2 cow_header; | ||
47 | - int fd; | ||
48 | - struct stat st; | ||
49 | - | ||
50 | - memset(&cow_header, 0, sizeof(cow_header)); | ||
51 | - cow_header.magic = htonl(COW_MAGIC); | ||
52 | - cow_header.version = htonl(COW_VERSION); | ||
53 | - if (image_filename) { | ||
54 | - fd = open(image_filename, O_RDONLY); | ||
55 | - if (fd < 0) { | ||
56 | - perror(image_filename); | ||
57 | - exit(1); | ||
58 | - } | ||
59 | - image_sectors = lseek64(fd, 0, SEEK_END); | ||
60 | - if (fstat(fd, &st) != 0) { | ||
61 | - close(fd); | ||
62 | - return -1; | ||
63 | - } | ||
64 | - close(fd); | ||
65 | - image_sectors /= 512; | ||
66 | - cow_header.mtime = htonl(st.st_mtime); | ||
67 | - realpath(image_filename, cow_header.backing_file); | ||
68 | - } | ||
69 | - cow_header.sectorsize = htonl(512); | ||
70 | - cow_header.size = image_sectors * 512; | ||
71 | -#ifndef WORDS_BIGENDIAN | ||
72 | - cow_header.size = bswap64(cow_header.size); | ||
73 | -#endif | ||
74 | - write(cow_fd, &cow_header, sizeof(cow_header)); | ||
75 | - /* resize to include at least all the bitmap */ | ||
76 | - ftruncate(cow_fd, sizeof(cow_header) + ((image_sectors + 7) >> 3)); | ||
77 | - lseek(cow_fd, 0, SEEK_SET); | ||
78 | - return 0; | ||
79 | -} | ||
80 | - | ||
81 | -void help(void) | ||
82 | -{ | ||
83 | - printf("qemu-mkcow version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n" | ||
84 | - "usage: qemu-mkcow [-h] [-f disk_image] cow_image [cow_size]\n" | ||
85 | - "Create a Copy On Write disk image from an optional raw disk image\n" | ||
86 | - "\n" | ||
87 | - "-f disk_image set the raw disk image name\n" | ||
88 | - "cow_image the created cow_image\n" | ||
89 | - "cow_size the create cow_image size in MB if no raw disk image is used\n" | ||
90 | - "\n" | ||
91 | - "Once the cow_image is created from a raw disk image, you must not modify the original raw disk image\n" | ||
92 | - ); | ||
93 | - exit(1); | ||
94 | -} | ||
95 | - | ||
96 | -int main(int argc, char **argv) | ||
97 | -{ | ||
98 | - const char *image_filename, *cow_filename; | ||
99 | - int cow_fd, c, nb_args, simple_image; | ||
100 | - int64_t image_size; | ||
101 | - | ||
102 | - image_filename = NULL; | ||
103 | - image_size = 0; | ||
104 | - simple_image = 0; | ||
105 | - for(;;) { | ||
106 | - c = getopt(argc, argv, "hf:s"); | ||
107 | - if (c == -1) | ||
108 | - break; | ||
109 | - switch(c) { | ||
110 | - case 'h': | ||
111 | - help(); | ||
112 | - break; | ||
113 | - case 'f': | ||
114 | - image_filename = optarg; | ||
115 | - break; | ||
116 | - case 's': | ||
117 | - simple_image = 1; | ||
118 | - break; | ||
119 | - } | ||
120 | - } | ||
121 | - if (!image_filename) | ||
122 | - nb_args = 2; | ||
123 | - else | ||
124 | - nb_args = 1; | ||
125 | - if (optind + nb_args != argc) | ||
126 | - help(); | ||
127 | - | ||
128 | - cow_filename = argv[optind]; | ||
129 | - if (nb_args == 2) { | ||
130 | - image_size = (int64_t)atoi(argv[optind + 1]) * 2 * 1024; | ||
131 | - } | ||
132 | - | ||
133 | - cow_fd = open(cow_filename, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); | ||
134 | - if (!cow_fd < 0) | ||
135 | - return -1; | ||
136 | - if (simple_image) { | ||
137 | - ftruncate64(cow_fd, image_size * 512); | ||
138 | - } else { | ||
139 | - if (cow_create(cow_fd, image_filename, image_size) < 0) { | ||
140 | - fprintf(stderr, "%s: error while formating\n", cow_filename); | ||
141 | - exit(1); | ||
142 | - } | ||
143 | - } | ||
144 | - close(cow_fd); | ||
145 | - return 0; | ||
146 | -} |
vmdk.h deleted
100644 → 0
1 | -/* | ||
2 | - Copyright (C) Matthew Chapman 2003 | ||
3 | - | ||
4 | - This program is free software; you can redistribute it and/or modify | ||
5 | - it under the terms of the GNU General Public License as published by | ||
6 | - the Free Software Foundation; either version 2 of the License, or | ||
7 | - (at your option) any later version. | ||
8 | - | ||
9 | - This program is distributed in the hope that it will be useful, | ||
10 | - but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | - GNU General Public License for more details. | ||
13 | - | ||
14 | - You should have received a copy of the GNU General Public License | ||
15 | - along with this program; if not, write to the Free Software | ||
16 | - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
17 | -*/ | ||
18 | - | ||
19 | -#define SECTOR_BITS 9 | ||
20 | -#define SECTOR_SIZE (1 << SECTOR_BITS) | ||
21 | -#define SECTOR_MASK (SECTOR_SIZE - 1) | ||
22 | - | ||
23 | -#define L1_BITS (SECTOR_BITS - 3) | ||
24 | -#define L1_SIZE (1 << L1_BITS) | ||
25 | -#define L1_MASK (L1_SIZE - 1) | ||
26 | - | ||
27 | -#define L2_BITS SECTOR_BITS | ||
28 | -#define L2_SIZE (1 << L2_BITS) | ||
29 | -#define L2_MASK (L2_SIZE - 1) | ||
30 | - | ||
31 | -#define MIN(x,y) (((x) < (y)) ? (x) : (y)) | ||
32 | - | ||
33 | -struct cowdisk_header | ||
34 | -{ | ||
35 | - uint32_t version; | ||
36 | - uint32_t flags; | ||
37 | - uint32_t disk_sectors; | ||
38 | - uint32_t granularity; | ||
39 | - uint32_t l1dir_offset; | ||
40 | - uint32_t l1dir_size; | ||
41 | - uint32_t file_sectors; | ||
42 | - uint32_t cylinders; | ||
43 | - uint32_t heads; | ||
44 | - uint32_t sectors_per_track; | ||
45 | -}; | ||
46 | - | ||
47 | -struct cowdisk_header2 | ||
48 | -{ | ||
49 | - uint32_t parent_ts; | ||
50 | - uint32_t timestamp; | ||
51 | -}; | ||
52 | - | ||
53 | -/* based on vdk 3.1 10-11-2003 by Ken Kato */ | ||
54 | - | ||
55 | -struct vmdisk_header | ||
56 | -{ | ||
57 | - uint32_t version; | ||
58 | - uint32_t flags; | ||
59 | - | ||
60 | - int64_t capacity; | ||
61 | - int64_t granularity; | ||
62 | - int64_t desc_offset; | ||
63 | - int64_t desc_size; | ||
64 | - int32_t num_gtes_per_gte; | ||
65 | - int64_t rgd_offset; | ||
66 | - int64_t gd_offset; | ||
67 | - int64_t grain_offset; | ||
68 | - | ||
69 | - char filler[1]; | ||
70 | - | ||
71 | - char check_bytes[4]; | ||
72 | -}; |
vmdk2raw.c deleted
100644 → 0
1 | -/* | ||
2 | - vmdk2raw: convert vmware images to raw disk images | ||
3 | - Copyright (C) Net Integration Technologies 2004 | ||
4 | - Copyright (C) Matthew Chapman 2003 | ||
5 | - | ||
6 | - This program is free software; you can redistribute it and/or modify | ||
7 | - it under the terms of the GNU General Public License as published by | ||
8 | - the Free Software Foundation; either version 2 of the License, or | ||
9 | - (at your option) any later version. | ||
10 | - | ||
11 | - This program is distributed in the hope that it will be useful, | ||
12 | - but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | - GNU General Public License for more details. | ||
15 | - | ||
16 | - You should have received a copy of the GNU General Public License | ||
17 | - along with this program; if not, write to the Free Software | ||
18 | - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
19 | -*/ | ||
20 | - | ||
21 | -#include <stdlib.h> | ||
22 | -#include <stdio.h> | ||
23 | -#include <unistd.h> | ||
24 | -#include <fcntl.h> | ||
25 | -#include <inttypes.h> | ||
26 | -#include <sys/types.h> | ||
27 | -#include <string.h> | ||
28 | -#include <sys/stat.h> | ||
29 | -#include <errno.h> | ||
30 | -#include "vmdk.h" | ||
31 | -#include "config-host.h" | ||
32 | - | ||
33 | -static struct cowdisk_header header; | ||
34 | -static struct vmdisk_header header4; | ||
35 | -static off64_t disk_limit; | ||
36 | -static unsigned int granule_size; | ||
37 | -static uint32_t *l1dir; | ||
38 | - | ||
39 | -static unsigned int cached_l2dir; | ||
40 | -static uint32_t l2dir[L2_SIZE]; | ||
41 | - | ||
42 | -static struct vmdk_prm { | ||
43 | - uint32_t grain_table_size; | ||
44 | - uint32_t sectors_per_grain; | ||
45 | - uint32_t sectors_per_table; | ||
46 | - uint32_t directory_size; | ||
47 | -} vdsk; | ||
48 | - | ||
49 | -static size_t read_physical(int fd, off64_t offset, size_t length, void *buffer) | ||
50 | -{ | ||
51 | - size_t n; | ||
52 | - | ||
53 | - if (lseek64(fd, offset, SEEK_SET) == -1) { | ||
54 | - printf(" error trying to seek lseek to %lld", offset); | ||
55 | - return -1; | ||
56 | - } | ||
57 | - | ||
58 | - n = read(fd, buffer, length); | ||
59 | - | ||
60 | - if (n == -1) { | ||
61 | - printf("read from disk %lld", offset); | ||
62 | - return -1; | ||
63 | - } | ||
64 | - | ||
65 | - return n; | ||
66 | -} | ||
67 | - | ||
68 | -static int read_l1dir(int fd, size_t offset, int num) | ||
69 | -{ | ||
70 | - l1dir = malloc(sizeof(*l1dir) * num); | ||
71 | - if (!l1dir) | ||
72 | - return -1; | ||
73 | - return read_physical(fd, offset << SECTOR_BITS, sizeof(*l1dir) * num, (char *)l1dir) != (sizeof(*l1dir) * num); | ||
74 | -} | ||
75 | - | ||
76 | -static int read_l2dir(int fd, size_t offset, int num) | ||
77 | -{ | ||
78 | - return read_physical(fd, offset << SECTOR_BITS, sizeof(l2dir[0]) * num, (char *)l2dir) != sizeof(l2dir); | ||
79 | -} | ||
80 | - | ||
81 | -static size_t copy_virtual(struct vmdk_prm *dsk, int in_fd, int out_fd, off64_t offset, void *buffer, size_t length) | ||
82 | -{ | ||
83 | - | ||
84 | - unsigned int granule_offset; | ||
85 | - unsigned int grain_index; | ||
86 | - unsigned int sector_map_idx; | ||
87 | - | ||
88 | - granule_offset = offset % granule_size; | ||
89 | - length = MIN(length, granule_size - granule_offset); | ||
90 | - length = MIN(length, disk_limit - offset); | ||
91 | - | ||
92 | - sector_map_idx = (offset >> SECTOR_BITS) / dsk->sectors_per_table; | ||
93 | - | ||
94 | - if (sector_map_idx >= dsk->directory_size) { | ||
95 | - fprintf(stderr, "cannot locate grain table for %d in %d\n", sector_map_idx, dsk->directory_size); | ||
96 | - return -1; | ||
97 | - } | ||
98 | - | ||
99 | - if (l1dir[sector_map_idx] == 0) | ||
100 | - goto zero_fill; | ||
101 | - | ||
102 | - if (sector_map_idx != cached_l2dir) { | ||
103 | - if (read_l2dir(in_fd, l1dir[sector_map_idx], dsk->grain_table_size)) { | ||
104 | - fprintf(stderr, "read failed\n"); | ||
105 | - return -1; | ||
106 | - } | ||
107 | - cached_l2dir = sector_map_idx; | ||
108 | - } | ||
109 | - | ||
110 | - grain_index = ((offset >> SECTOR_BITS) % dsk->sectors_per_table) / dsk->sectors_per_grain; | ||
111 | - | ||
112 | - if (grain_index >= dsk->grain_table_size) { | ||
113 | - fprintf(stderr, "grain to large"); | ||
114 | - return -1; | ||
115 | - } | ||
116 | - | ||
117 | - if (l2dir[grain_index] == 0) | ||
118 | - goto zero_fill; | ||
119 | - | ||
120 | - if (read_physical(in_fd, (l2dir[grain_index] << SECTOR_BITS) + granule_offset, length, buffer) != length) { | ||
121 | - fprintf(stderr, "read error 2\n"); | ||
122 | - return -1; | ||
123 | - } | ||
124 | - | ||
125 | - write(out_fd, buffer, length); | ||
126 | - return length; | ||
127 | - | ||
128 | -zero_fill: | ||
129 | - /* the last chunk of the file can not be sparse | ||
130 | - * or the file will be truncated */ | ||
131 | - if (offset + length >= disk_limit) { | ||
132 | - if (lseek64(out_fd, length-1, SEEK_CUR) == (off_t)-1) | ||
133 | - perror("lseek"); | ||
134 | - /* write the last NULL byte instead of seeking */ | ||
135 | - const char nil = 0; | ||
136 | - write(out_fd, &nil, 1); | ||
137 | - } else { | ||
138 | - if (lseek64(out_fd, length, SEEK_CUR) == (off_t)-1) | ||
139 | - perror("lseek"); | ||
140 | - } | ||
141 | - return length; | ||
142 | -} | ||
143 | - | ||
144 | -static int open_vmdk4(int fd) | ||
145 | -{ | ||
146 | - if (read(fd, &header4, sizeof(header4)) != sizeof(header4)) { | ||
147 | - perror("read from disk"); | ||
148 | - return -1; | ||
149 | - } | ||
150 | - | ||
151 | - granule_size = header4.granularity << SECTOR_BITS; | ||
152 | - disk_limit = header4.capacity << SECTOR_BITS; | ||
153 | - | ||
154 | - cached_l2dir = -1; | ||
155 | - vdsk.grain_table_size = header4.num_gtes_per_gte; | ||
156 | - vdsk.sectors_per_grain = header4.granularity; | ||
157 | - vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain; | ||
158 | - vdsk.directory_size = (header4.capacity + vdsk.sectors_per_table - 1) / vdsk.sectors_per_table + 1; | ||
159 | - | ||
160 | - if (read_l1dir(fd, header4.rgd_offset, vdsk.directory_size)) | ||
161 | - return -1; | ||
162 | - | ||
163 | - return 0; | ||
164 | - | ||
165 | -} | ||
166 | - | ||
167 | -static int open_vmdk3(int fd) | ||
168 | -{ | ||
169 | - if (read(fd, &header, sizeof(header)) != sizeof(header)) { | ||
170 | - perror("read from disk\n"); | ||
171 | - return -1; | ||
172 | - } | ||
173 | - granule_size = header.granularity << SECTOR_BITS; | ||
174 | - vdsk.sectors_per_grain = header.granularity; | ||
175 | - vdsk.grain_table_size = L2_SIZE; | ||
176 | - vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain; | ||
177 | - vdsk.directory_size = L1_SIZE; | ||
178 | - if (read_l1dir(fd, header.l1dir_offset, L1_SIZE)) | ||
179 | - return -1; | ||
180 | - | ||
181 | - disk_limit = header.disk_sectors << SECTOR_BITS; | ||
182 | - | ||
183 | - return fd; | ||
184 | -} | ||
185 | - | ||
186 | -static int open_vmdk(const char *filename) | ||
187 | -{ | ||
188 | - int fd = open(filename, O_RDONLY | O_LARGEFILE); | ||
189 | - if (fd == -1) { | ||
190 | - perror(filename); | ||
191 | - return -1; | ||
192 | - } | ||
193 | - | ||
194 | - char magic[4]; | ||
195 | - if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) { | ||
196 | - perror("read from disk"); | ||
197 | - return -1; | ||
198 | - } | ||
199 | - | ||
200 | - if (!memcmp(magic, "KDMV", sizeof(magic))) { | ||
201 | - open_vmdk4(fd); | ||
202 | - } else if (!memcmp(magic, "COWD", sizeof(magic))) { | ||
203 | - open_vmdk3(fd); | ||
204 | - } else { | ||
205 | - fprintf(stderr, "%s is not a VMware virtual disk image\n", filename); | ||
206 | - return -1; | ||
207 | - } | ||
208 | - | ||
209 | - cached_l2dir = -1; | ||
210 | - return fd; | ||
211 | -} | ||
212 | - | ||
213 | -static void help(void) | ||
214 | -{ | ||
215 | - printf("vmdk2raw\n" | ||
216 | - "usage: vmdk2raw vmware_image output_image\n" | ||
217 | - "\n" | ||
218 | - "vmware_image a vmware cow image\n" | ||
219 | - "output_image the created disk image\n" | ||
220 | - ); | ||
221 | - exit(1); | ||
222 | -} | ||
223 | - | ||
224 | -#define BUF_SIZE 0x10000 | ||
225 | -static void copy_disk(in_fd, out_fd) | ||
226 | -{ | ||
227 | - char buf[BUF_SIZE]; | ||
228 | - off64_t i = 0; | ||
229 | - int ret; | ||
230 | - while (i < disk_limit) { | ||
231 | - ret = copy_virtual(&vdsk, in_fd, out_fd, i, buf, sizeof(buf)); | ||
232 | - if (ret < 0) { | ||
233 | - fprintf(stderr, "copying failed\n"); | ||
234 | - exit(-1); | ||
235 | - } | ||
236 | - i += ret; | ||
237 | - } | ||
238 | -} | ||
239 | - | ||
240 | -int main(int argc, char **argv) | ||
241 | -{ | ||
242 | - int out_fd, in_fd; | ||
243 | - | ||
244 | - if (argc < 3) | ||
245 | - help(); | ||
246 | - | ||
247 | - in_fd = open_vmdk(argv[1]); | ||
248 | - if (in_fd < 0) { | ||
249 | - return -1; | ||
250 | - } | ||
251 | - | ||
252 | - out_fd = open(argv[2], O_WRONLY | O_LARGEFILE | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); | ||
253 | - if (out_fd < 0) { | ||
254 | - perror(argv[2]); | ||
255 | - return -1; | ||
256 | - } | ||
257 | - | ||
258 | - copy_disk(in_fd, out_fd); | ||
259 | - close(out_fd); | ||
260 | - return 0; | ||
261 | -} |