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vmdk compatibility level 6 images, by Soren Hansen.

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3175 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-09-16 21:59:02 +00:00
parent 3ae4320275
commit ec36ba1474
6 changed files with 43 additions and 26 deletions
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2
block-qcow.c
View File

@ -769,7 +769,7 @@ static int qcow_create(const char *filename, int64_t total_size,
l1_size = ((total_size * 512) + (1LL << shift) - 1) >> shift;
header.l1_table_offset = cpu_to_be64(header_size);
if (flags) {
if (flags & BLOCK_FLAG_ENCRYPT) {
header.crypt_method = cpu_to_be32(QCOW_CRYPT_AES);
} else {
header.crypt_method = cpu_to_be32(QCOW_CRYPT_NONE);

2
block-qcow2.c
View File

@ -1076,7 +1076,7 @@ static int qcow_create(const char *filename, int64_t total_size,
s->cluster_size = 1 << s->cluster_bits;
header.cluster_bits = cpu_to_be32(s->cluster_bits);
header_size = (header_size + 7) & ~7;
if (flags) {
if (flags & BLOCK_FLAG_ENCRYPT) {
header.crypt_method = cpu_to_be32(QCOW_CRYPT_AES);
} else {
header.crypt_method = cpu_to_be32(QCOW_CRYPT_NONE);

4
block-vmdk.c
View File

@ -712,7 +712,7 @@ static int vmdk_create(const char *filename, int64_t total_size,
"# The Disk Data Base \n"
"#DDB\n"
"\n"
"ddb.virtualHWVersion = \"4\"\n"
"ddb.virtualHWVersion = \"%d\"\n"
"ddb.geometry.cylinders = \"%lu\"\n"
"ddb.geometry.heads = \"16\"\n"
"ddb.geometry.sectors = \"63\"\n"
@ -789,7 +789,7 @@ static int vmdk_create(const char *filename, int64_t total_size,
if ((temp_str = strrchr(real_filename, ':')) != NULL)
real_filename = temp_str + 1;
sprintf(desc, desc_template, time(NULL), (unsigned long)total_size,
real_filename, total_size / (63 * 16));
real_filename, (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4), total_size / (63 * 16));
/* write the descriptor */
lseek(fd, le64_to_cpu(header.desc_offset) << 9, SEEK_SET);

4
block_int.h
View File

@ -24,6 +24,10 @@
#ifndef BLOCK_INT_H
#define BLOCK_INT_H
#define BLOCK_FLAG_ENCRYPT 1
#define BLOCK_FLAG_COMPRESS 2
#define BLOCK_FLAG_COMPAT6 4
struct BlockDriver {
const char *format_name;
int instance_size;

49
qemu-img.c
View File

@ -22,6 +22,7 @@
* THE SOFTWARE.
*/
#include "vl.h"
#include "block_int.h"
#ifdef _WIN32
#include <windows.h>
@ -98,9 +99,9 @@ void help(void)
"QEMU disk image utility\n"
"\n"
"Command syntax:\n"
" create [-e] [-b base_image] [-f fmt] filename [size]\n"
" create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
" commit [-f fmt] filename\n"
" convert [-c] [-e] [-f fmt] filename [-O output_fmt] output_filename\n"
" convert [-c] [-e] [-6] [-f fmt] filename [-O output_fmt] output_filename\n"
" info [-f fmt] filename\n"
"\n"
"Command parameters:\n"
@ -114,6 +115,7 @@ void help(void)
" 'output_fmt' is the destination format\n"
" '-c' indicates that target image must be compressed (qcow format only)\n"
" '-e' indicates that the target image must be encrypted (qcow format only)\n"
" '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
);
printf("\nSupported format:");
bdrv_iterate_format(format_print, NULL);
@ -241,7 +243,7 @@ static BlockDriverState *bdrv_new_open(const char *filename,
static int img_create(int argc, char **argv)
{
int c, ret, encrypted;
int c, ret, flags;
const char *fmt = "raw";
const char *filename;
const char *base_filename = NULL;
@ -249,9 +251,9 @@ static int img_create(int argc, char **argv)
const char *p;
BlockDriver *drv;
encrypted = 0;
flags = 0;
for(;;) {
c = getopt(argc, argv, "b:f:he");
c = getopt(argc, argv, "b:f:he6");
if (c == -1)
break;
switch(c) {
@ -265,8 +267,11 @@ static int img_create(int argc, char **argv)
fmt = optarg;
break;
case 'e':
encrypted = 1;
flags |= BLOCK_FLAG_ENCRYPT;
break;
case '6':
flags |= BLOCK_FLAG_COMPAT6;
break;
}
}
if (optind >= argc)
@ -299,14 +304,16 @@ static int img_create(int argc, char **argv)
error("Unknown file format '%s'", fmt);
printf("Formatting '%s', fmt=%s",
filename, fmt);
if (encrypted)
if (flags & BLOCK_FLAG_ENCRYPT)
printf(", encrypted");
if (flags & BLOCK_FLAG_COMPAT6)
printf(", compatibility level=6");
if (base_filename) {
printf(", backing_file=%s",
base_filename);
}
printf(", size=%" PRId64 " kB\n", (int64_t) (size / 1024));
ret = bdrv_create(drv, filename, size / 512, base_filename, encrypted);
ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
if (ret < 0) {
if (ret == -ENOTSUP) {
error("Formatting or formatting option not supported for file format '%s'", fmt);
@ -411,7 +418,7 @@ static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum)
static int img_convert(int argc, char **argv)
{
int c, ret, n, n1, compress, cluster_size, cluster_sectors, encrypt;
int c, ret, n, n1, flags, cluster_size, cluster_sectors;
const char *filename, *fmt, *out_fmt, *out_filename;
BlockDriver *drv;
BlockDriverState *bs, *out_bs;
@ -422,10 +429,9 @@ static int img_convert(int argc, char **argv)
fmt = NULL;
out_fmt = "raw";
compress = 0;
encrypt = 0;
flags = 0;
for(;;) {
c = getopt(argc, argv, "f:O:hce");
c = getopt(argc, argv, "f:O:hce6");
if (c == -1)
break;
switch(c) {
@ -439,10 +445,13 @@ static int img_convert(int argc, char **argv)
out_fmt = optarg;
break;
case 'c':
compress = 1;
flags |= BLOCK_FLAG_COMPRESS;
break;
case 'e':
encrypt = 1;
flags |= BLOCK_FLAG_ENCRYPT;
break;
case '6':
flags |= BLOCK_FLAG_COMPAT6;
break;
}
}
@ -458,14 +467,16 @@ static int img_convert(int argc, char **argv)
drv = bdrv_find_format(out_fmt);
if (!drv)
error("Unknown file format '%s'", out_fmt);
if (compress && drv != &bdrv_qcow && drv != &bdrv_qcow2)
if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
error("Compression not supported for this file format");
if (encrypt && drv != &bdrv_qcow && drv != &bdrv_qcow2)
if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
error("Encryption not supported for this file format");
if (compress && encrypt)
if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_vmdk)
error("Alternative compatibility level not supported for this file format");
if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
error("Compression and encryption not supported at the same time");
bdrv_get_geometry(bs, &total_sectors);
ret = bdrv_create(drv, out_filename, total_sectors, NULL, encrypt);
ret = bdrv_create(drv, out_filename, total_sectors, NULL, flags);
if (ret < 0) {
if (ret == -ENOTSUP) {
error("Formatting not supported for file format '%s'", fmt);
@ -476,7 +487,7 @@ static int img_convert(int argc, char **argv)
out_bs = bdrv_new_open(out_filename, out_fmt);
if (compress) {
if (flags && BLOCK_FLAG_COMPRESS) {
if (bdrv_get_info(out_bs, &bdi) < 0)
error("could not get block driver info");
cluster_size = bdi.cluster_size;

8
qemu-img.texi
View File

@ -8,9 +8,9 @@ usage: qemu-img command [command options]
The following commands are supported:
@table @option
@item create [-e] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]
@item create [-e] [-6] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]
@item commit [-f @var{fmt}] @var{filename}
@item convert [-c] [-e] [-f @var{fmt}] @var{filename} [-O @var{output_fmt}] @var{output_filename}
@item convert [-c] [-e] [-6] [-f @var{fmt}] @var{filename} [-O @var{output_fmt}] @var{output_filename}
@item info [-f @var{fmt}] @var{filename}
@end table
@ -67,12 +67,14 @@ is the destination disk image filename
indicates that target image must be compressed (qcow format only)
@item -e
indicates that the target image must be encrypted (qcow format only)
@item -6
indicates that the target image must use compatibility level 6 (vmdk format only)
@end table
Command description:
@table @option
@item create [-e] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]
@item create [-6] [-e] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]
Create the new disk image @var{filename} of size @var{size} and format
@var{fmt}.