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qemu-img: allow specifying image as a set of options args

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Currently qemu-img allows an image filename to be passed on the
command line, but unless using the JSON format, it does not have
a way to set any options except the format eg

   qemu-img info https://127.0.0.1/images/centos7.iso

This adds a --image-opts arg that indicates that the positional
filename should be interpreted as a full option string, not
just a filename.

   qemu-img info --image-opts driver=https,url=https://127.0.0.1/images,sslverify=off

This flag is mutually exclusive with the '-f' / '-F' flags.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-02-17 10:10:20 +00:00 committed by Kevin Wolf
parent 77c9aaefd7
commit eb769f7420
3 changed files with 195 additions and 60 deletions
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44
qemu-img-cmds.hx
View File

@ -10,68 +10,68 @@ STEXI
ETEXI
DEF("check", img_check,
"check [-q] [--object objectdef] [-f fmt] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
"check [-q] [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
STEXI
@item check [--object @var{objectdef}] [-q] [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
@item check [--object @var{objectdef}] [--image-opts] [-q] [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
ETEXI
DEF("create", img_create,
"create [-q] [--object objectdef] [-f fmt] [-o options] filename [size]")
"create [-q] [--object objectdef] [--image-opts] [-f fmt] [-o options] filename [size]")
STEXI
@item create [--object @var{objectdef}] [-q] [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
@item create [--object @var{objectdef}] [--image-opts] [-q] [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
ETEXI
DEF("commit", img_commit,
"commit [-q] [--object objectdef] [-f fmt] [-t cache] [-b base] [-d] [-p] filename")
"commit [-q] [--object objectdef] [--image-opts] [-f fmt] [-t cache] [-b base] [-d] [-p] filename")
STEXI
@item commit [--object @var{objectdef}] [-q] [-f @var{fmt}] [-t @var{cache}] [-b @var{base}] [-d] [-p] @var{filename}
@item commit [--object @var{objectdef}] [--image-opts] [-q] [-f @var{fmt}] [-t @var{cache}] [-b @var{base}] [-d] [-p] @var{filename}
ETEXI
DEF("compare", img_compare,
"compare [--object objectdef] [-f fmt] [-F fmt] [-T src_cache] [-p] [-q] [-s] filename1 filename2")
"compare [--object objectdef] [--image-opts] [-f fmt] [-F fmt] [-T src_cache] [-p] [-q] [-s] filename1 filename2")
STEXI
@item compare [--object @var{objectdef}] [-f @var{fmt}] [-F @var{fmt}] [-T @var{src_cache}] [-p] [-q] [-s] @var{filename1} @var{filename2}
@item compare [--object @var{objectdef}] [--image-opts] [-f @var{fmt}] [-F @var{fmt}] [-T @var{src_cache}] [-p] [-q] [-s] @var{filename1} @var{filename2}
ETEXI
DEF("convert", img_convert,
"convert [--object objectdef] [-c] [-p] [-q] [-n] [-f fmt] [-t cache] [-T src_cache] [-O output_fmt] [-o options] [-s snapshot_id_or_name] [-l snapshot_param] [-S sparse_size] filename [filename2 [...]] output_filename")
"convert [--object objectdef] [--image-opts] [-c] [-p] [-q] [-n] [-f fmt] [-t cache] [-T src_cache] [-O output_fmt] [-o options] [-s snapshot_id_or_name] [-l snapshot_param] [-S sparse_size] filename [filename2 [...]] output_filename")
STEXI
@item convert [--object @var{objectdef}] [-c] [-p] [-q] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
@item convert [--object @var{objectdef}] [--image-opts] [-c] [-p] [-q] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
ETEXI
DEF("info", img_info,
"info [--object objectdef] [-f fmt] [--output=ofmt] [--backing-chain] filename")
"info [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] [--backing-chain] filename")
STEXI
@item info [--object @var{objectdef}] [-f @var{fmt}] [--output=@var{ofmt}] [--backing-chain] @var{filename}
@item info [--object @var{objectdef}] [--image-opts] [-f @var{fmt}] [--output=@var{ofmt}] [--backing-chain] @var{filename}
ETEXI
DEF("map", img_map,
"map [--object objectdef] [-f fmt] [--output=ofmt] filename")
"map [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] filename")
STEXI
@item map [--object @var{objectdef}] [-f @var{fmt}] [--output=@var{ofmt}] @var{filename}
@item map [--object @var{objectdef}] [--image-opts] [-f @var{fmt}] [--output=@var{ofmt}] @var{filename}
ETEXI
DEF("snapshot", img_snapshot,
"snapshot [--object objectdef] [-q] [-l | -a snapshot | -c snapshot | -d snapshot] filename")
"snapshot [--object objectdef] [--image-opts] [-q] [-l | -a snapshot | -c snapshot | -d snapshot] filename")
STEXI
@item snapshot [--object @var{objectdef}] [-q] [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
@item snapshot [--object @var{objectdef}] [--image-opts] [-q] [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
ETEXI
DEF("rebase", img_rebase,
"rebase [--object objectdef] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] -b backing_file [-F backing_fmt] filename")
"rebase [--object objectdef] [--image-opts] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] -b backing_file [-F backing_fmt] filename")
STEXI
@item rebase [--object @var{objectdef}] [-q] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-p] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
@item rebase [--object @var{objectdef}] [--image-opts] [-q] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-p] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
ETEXI
DEF("resize", img_resize,
"resize [--object objectdef] [-q] filename [+ | -]size")
"resize [--object objectdef] [--image-opts] [-q] filename [+ | -]size")
STEXI
@item resize [--object @var{objectdef}] [-q] @var{filename} [+ | -]@var{size}
@item resize [--object @var{objectdef}] [--image-opts] [-q] @var{filename} [+ | -]@var{size}
ETEXI
DEF("amend", img_amend,
"amend [--object objectdef] [-p] [-q] [-f fmt] [-t cache] -o options filename")
"amend [--object objectdef] [--image-opts] [-p] [-q] [-f fmt] [-t cache] -o options filename")
STEXI
@item amend [--object @var{objectdef}] [-p] [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
@item amend [--object @var{objectdef}] [--image-opts] [-p] [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
@end table
ETEXI

205
qemu-img.c
View File

@ -50,6 +50,7 @@ enum {
OPTION_OUTPUT = 256,
OPTION_BACKING_CHAIN = 257,
OPTION_OBJECT = 258,
OPTION_IMAGE_OPTS = 259,
};
typedef enum OutputFormat {
@ -170,6 +171,15 @@ static QemuOptsList qemu_object_opts = {
},
};
static QemuOptsList qemu_source_opts = {
.name = "source",
.implied_opt_name = "file",
.head = QTAILQ_HEAD_INITIALIZER(qemu_source_opts.head),
.desc = {
{ }
},
};
static int GCC_FMT_ATTR(2, 3) qprintf(bool quiet, const char *fmt, ...)
{
int ret = 0;
@ -212,13 +222,56 @@ static int print_block_option_help(const char *filename, const char *fmt)
return 0;
}
static BlockBackend *img_open(const char *id, const char *filename,
const char *fmt, int flags,
bool require_io, bool quiet)
static int img_open_password(BlockBackend *blk, const char *filename,
bool require_io, bool quiet)
{
BlockBackend *blk;
BlockDriverState *bs;
char password[256];
bs = blk_bs(blk);
if (bdrv_is_encrypted(bs) && require_io) {
qprintf(quiet, "Disk image '%s' is encrypted.\n", filename);
if (qemu_read_password(password, sizeof(password)) < 0) {
error_report("No password given");
return -1;
}
if (bdrv_set_key(bs, password) < 0) {
error_report("invalid password");
return -1;
}
}
return 0;
}
static BlockBackend *img_open_opts(const char *id,
const char *optstr,
QemuOpts *opts, int flags,
bool require_io, bool quiet)
{
QDict *options;
Error *local_err = NULL;
BlockBackend *blk;
options = qemu_opts_to_qdict(opts, NULL);
blk = blk_new_open(id, NULL, NULL, options, flags, &local_err);
if (!blk) {
error_reportf_err(local_err, "Could not open '%s'", optstr);
return NULL;
}
if (img_open_password(blk, optstr, require_io, quiet) < 0) {
blk_unref(blk);
return NULL;
}
return blk;
}
static BlockBackend *img_open_file(const char *id, const char *filename,
const char *fmt, int flags,
bool require_io, bool quiet)
{
BlockBackend *blk;
Error *local_err = NULL;
QDict *options = NULL;
@ -230,27 +283,43 @@ static BlockBackend *img_open(const char *id, const char *filename,
blk = blk_new_open(id, filename, NULL, options, flags, &local_err);
if (!blk) {
error_reportf_err(local_err, "Could not open '%s': ", filename);
goto fail;
return NULL;
}
bs = blk_bs(blk);
if (bdrv_is_encrypted(bs) && require_io) {
qprintf(quiet, "Disk image '%s' is encrypted.\n", filename);
if (qemu_read_password(password, sizeof(password)) < 0) {
error_report("No password given");
goto fail;
}
if (bdrv_set_key(bs, password) < 0) {
error_report("invalid password");
goto fail;
}
if (img_open_password(blk, filename, require_io, quiet) < 0) {
blk_unref(blk);
return NULL;
}
return blk;
fail:
blk_unref(blk);
return NULL;
}
static BlockBackend *img_open(const char *id,
bool image_opts,
const char *filename,
const char *fmt, int flags,
bool require_io, bool quiet)
{
BlockBackend *blk;
if (image_opts) {
QemuOpts *opts;
if (fmt) {
error_report("--image-opts and --format are mutually exclusive");
return NULL;
}
opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
filename, true);
if (!opts) {
return NULL;
}
blk = img_open_opts(id, filename, opts, flags, true, quiet);
} else {
blk = img_open_file(id, filename, fmt, flags, true, quiet);
}
return blk;
}
static int add_old_style_options(const char *fmt, QemuOpts *opts,
const char *base_filename,
const char *base_fmt)
@ -527,6 +596,7 @@ static int img_check(int argc, char **argv)
ImageCheck *check;
bool quiet = false;
Error *local_err = NULL;
bool image_opts = false;
fmt = NULL;
output = NULL;
@ -539,6 +609,7 @@ static int img_check(int argc, char **argv)
{"repair", required_argument, 0, 'r'},
{"output", required_argument, 0, OPTION_OUTPUT},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hf:r:T:q",
@ -583,6 +654,9 @@ static int img_check(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
if (optind != argc - 1) {
@ -612,7 +686,7 @@ static int img_check(int argc, char **argv)
return 1;
}
blk = img_open("image", filename, fmt, flags, true, quiet);
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
return 1;
}
@ -724,6 +798,7 @@ static int img_commit(int argc, char **argv)
bool progress = false, quiet = false, drop = false;
Error *local_err = NULL;
CommonBlockJobCBInfo cbi;
bool image_opts = false;
fmt = NULL;
cache = BDRV_DEFAULT_CACHE;
@ -732,6 +807,7 @@ static int img_commit(int argc, char **argv)
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "f:ht:b:dpq",
@ -772,6 +848,9 @@ static int img_commit(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -799,7 +878,7 @@ static int img_commit(int argc, char **argv)
return 1;
}
blk = img_open("image", filename, fmt, flags, true, quiet);
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
return 1;
}
@ -1049,12 +1128,14 @@ static int img_compare(int argc, char **argv)
int c, pnum;
uint64_t progress_base;
Error *local_err = NULL;
bool image_opts = false;
cache = BDRV_DEFAULT_CACHE;
for (;;) {
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hf:F:T:pqs",
@ -1094,6 +1175,9 @@ static int img_compare(int argc, char **argv)
goto out4;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -1128,18 +1212,18 @@ static int img_compare(int argc, char **argv)
goto out3;
}
blk1 = img_open("image_1", filename1, fmt1, flags, true, quiet);
blk1 = img_open("image_1", image_opts, filename1, fmt1, flags, true, quiet);
if (!blk1) {
ret = 2;
goto out3;
}
bs1 = blk_bs(blk1);
blk2 = img_open("image_2", filename2, fmt2, flags, true, quiet);
blk2 = img_open("image_2", image_opts, filename2, fmt2, flags, true, quiet);
if (!blk2) {
ret = 2;
goto out2;
}
bs1 = blk_bs(blk1);
bs2 = blk_bs(blk2);
buf1 = blk_blockalign(blk1, IO_BUF_SIZE);
@ -1646,6 +1730,7 @@ static int img_convert(int argc, char **argv)
Error *local_err = NULL;
QemuOpts *sn_opts = NULL;
ImgConvertState state;
bool image_opts = false;
fmt = NULL;
out_fmt = "raw";
@ -1658,6 +1743,7 @@ static int img_convert(int argc, char **argv)
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hf:O:B:ce6o:s:l:S:pt:T:qn",
@ -1759,6 +1845,9 @@ static int img_convert(int argc, char **argv)
goto fail_getopt;
}
break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -1775,7 +1864,6 @@ static int img_convert(int argc, char **argv)
}
qemu_progress_init(progress, 1.0);
bs_n = argc - optind - 1;
out_filename = bs_n >= 1 ? argv[argc - 1] : NULL;
@ -1813,8 +1901,8 @@ static int img_convert(int argc, char **argv)
for (bs_i = 0; bs_i < bs_n; bs_i++) {
char *id = bs_n > 1 ? g_strdup_printf("source_%d", bs_i)
: g_strdup("source");
blk[bs_i] = img_open(id, argv[optind + bs_i], fmt, src_flags,
true, quiet);
blk[bs_i] = img_open(id, image_opts, argv[optind + bs_i],
fmt, src_flags, true, quiet);
g_free(id);
if (!blk[bs_i]) {
ret = -1;
@ -1955,7 +2043,13 @@ static int img_convert(int argc, char **argv)
goto out;
}
out_blk = img_open("target", out_filename, out_fmt, flags, true, quiet);
/* XXX we should allow --image-opts to trigger use of
* img_open() here, but then we have trouble with
* the bdrv_create() call which takes different params.
* Not critical right now, so fix can wait...
*/
out_blk = img_open_file("target", out_filename,
out_fmt, flags, true, quiet);
if (!out_blk) {
ret = -1;
goto out;
@ -2121,7 +2215,8 @@ static gboolean str_equal_func(gconstpointer a, gconstpointer b)
* image file. If there was an error a message will have been printed to
* stderr.
*/
static ImageInfoList *collect_image_info_list(const char *filename,
static ImageInfoList *collect_image_info_list(bool image_opts,
const char *filename,
const char *fmt,
bool chain)
{
@ -2145,8 +2240,9 @@ static ImageInfoList *collect_image_info_list(const char *filename,
}
g_hash_table_insert(filenames, (gpointer)filename, NULL);
blk = img_open("image", filename, fmt,
BDRV_O_FLAGS | BDRV_O_NO_BACKING, false, false);
blk = img_open("image", image_opts, filename, fmt,
BDRV_O_FLAGS | BDRV_O_NO_BACKING,
false, false);
if (!blk) {
goto err;
}
@ -2198,6 +2294,7 @@ static int img_info(int argc, char **argv)
const char *filename, *fmt, *output;
ImageInfoList *list;
Error *local_err = NULL;
bool image_opts = false;
fmt = NULL;
output = NULL;
@ -2209,6 +2306,7 @@ static int img_info(int argc, char **argv)
{"output", required_argument, 0, OPTION_OUTPUT},
{"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "f:h",
@ -2238,6 +2336,9 @@ static int img_info(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
if (optind != argc - 1) {
@ -2261,7 +2362,7 @@ static int img_info(int argc, char **argv)
return 1;
}
list = collect_image_info_list(filename, fmt, chain);
list = collect_image_info_list(image_opts, filename, fmt, chain);
if (!list) {
return 1;
}
@ -2407,6 +2508,7 @@ static int img_map(int argc, char **argv)
MapEntry curr = { .length = 0 }, next;
int ret = 0;
Error *local_err = NULL;
bool image_opts = false;
fmt = NULL;
output = NULL;
@ -2417,6 +2519,7 @@ static int img_map(int argc, char **argv)
{"format", required_argument, 0, 'f'},
{"output", required_argument, 0, OPTION_OUTPUT},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "f:h",
@ -2443,6 +2546,9 @@ static int img_map(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
if (optind != argc - 1) {
@ -2466,7 +2572,8 @@ static int img_map(int argc, char **argv)
return 1;
}
blk = img_open("image", filename, fmt, BDRV_O_FLAGS, true, false);
blk = img_open("image", image_opts, filename, fmt,
BDRV_O_FLAGS, true, false);
if (!blk) {
return 1;
}
@ -2528,6 +2635,7 @@ static int img_snapshot(int argc, char **argv)
qemu_timeval tv;
bool quiet = false;
Error *err = NULL;
bool image_opts = false;
bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR;
/* Parse commandline parameters */
@ -2535,6 +2643,7 @@ static int img_snapshot(int argc, char **argv)
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "la:c:d:hq",
@ -2590,6 +2699,9 @@ static int img_snapshot(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -2606,7 +2718,8 @@ static int img_snapshot(int argc, char **argv)
}
/* Open the image */
blk = img_open("image", filename, NULL, bdrv_oflags, true, quiet);
blk = img_open("image", image_opts, filename, NULL,
bdrv_oflags, true, quiet);
if (!blk) {
return 1;
}
@ -2670,6 +2783,7 @@ static int img_rebase(int argc, char **argv)
int progress = 0;
bool quiet = false;
Error *local_err = NULL;
bool image_opts = false;
/* Parse commandline parameters */
fmt = NULL;
@ -2681,6 +2795,7 @@ static int img_rebase(int argc, char **argv)
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "hf:F:b:upt:T:q",
@ -2725,6 +2840,9 @@ static int img_rebase(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -2770,7 +2888,7 @@ static int img_rebase(int argc, char **argv)
* Ignore the old backing file for unsafe rebase in case we want to correct
* the reference to a renamed or moved backing file.
*/
blk = img_open("image", filename, fmt, flags, true, quiet);
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
ret = -1;
goto out;
@ -3022,6 +3140,7 @@ static int img_resize(int argc, char **argv)
}
},
};
bool image_opts = false;
/* Remove size from argv manually so that negative numbers are not treated
* as options by getopt. */
@ -3038,6 +3157,7 @@ static int img_resize(int argc, char **argv)
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "f:hq",
@ -3064,6 +3184,9 @@ static int img_resize(int argc, char **argv)
return 1;
}
} break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
if (optind != argc - 1) {
@ -3105,8 +3228,8 @@ static int img_resize(int argc, char **argv)
n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
qemu_opts_del(param);
blk = img_open("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR,
true, quiet);
blk = img_open("image", image_opts, filename, fmt,
BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet);
if (!blk) {
ret = -1;
goto out;
@ -3166,12 +3289,14 @@ static int img_amend(int argc, char **argv)
BlockBackend *blk = NULL;
BlockDriverState *bs = NULL;
Error *local_err = NULL;
bool image_opts = false;
cache = BDRV_DEFAULT_CACHE;
for (;;) {
static const struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"object", required_argument, 0, OPTION_OBJECT},
{"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "ho:f:t:pq",
@ -3219,6 +3344,9 @@ static int img_amend(int argc, char **argv)
goto out_no_progress;
}
break;
case OPTION_IMAGE_OPTS:
image_opts = true;
break;
}
}
@ -3260,7 +3388,7 @@ static int img_amend(int argc, char **argv)
goto out;
}
blk = img_open("image", filename, fmt, flags, true, quiet);
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
ret = -1;
goto out;
@ -3358,6 +3486,7 @@ int main(int argc, char **argv)
cmdname = argv[1];
qemu_add_opts(&qemu_object_opts);
qemu_add_opts(&qemu_source_opts);
/* find the command */
for (cmd = img_cmds; cmd->name != NULL; cmd++) {

6
qemu-img.texi
View File

@ -32,6 +32,12 @@ page for a description of the object properties. The most common object
type is a @code{secret}, which is used to supply passwords and/or encryption
keys.
@item --image-opts
Indicates that the @var{filename} parameter is to be interpreted as a
full option string, not a plain filename. This parameter is mutually
exclusive with the @var{-f} and @var{-F} parameters.
@item fmt
is the disk image format. It is guessed automatically in most cases. See below
for a description of the supported disk formats.