From: Maxim Levitsky <mlevitsk@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
qemu-block@nongnu.org, "John Snow" <jsnow@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Max Reitz" <mreitz@redhat.com>,
"Maxim Levitsky" <mlevitsk@redhat.com>
Subject: [PATCH v4 04/14] block/amend: separate amend and create options for qemu-img
Date: Tue, 5 May 2020 23:08:09 +0300 [thread overview]
Message-ID: <20200505200819.5662-5-mlevitsk@redhat.com> (raw)
In-Reply-To: <20200505200819.5662-1-mlevitsk@redhat.com>
Some options are only useful for creation
(or hard to be amended, like cluster size for qcow2), while some other
options are only useful for amend, like upcoming keyslot management
options for luks
Since currently only qcow2 supports amend, move all its options
to a common macro and then include it in each action option list.
In future it might be useful to remove some options which are
not supported anyway from amend list, which currently
cause an error message if amended.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
block/qcow2.c | 160 +++++++++++++++++++++-----------------
include/block/block_int.h | 4 +
qemu-img.c | 18 ++---
3 files changed, 100 insertions(+), 82 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index ffb6b22e2d..13780b0278 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -5495,83 +5495,96 @@ void qcow2_signal_corruption(BlockDriverState *bs, bool fatal, int64_t offset,
s->signaled_corruption = true;
}
+#define QCOW_COMMON_OPTIONS \
+ { \
+ .name = BLOCK_OPT_SIZE, \
+ .type = QEMU_OPT_SIZE, \
+ .help = "Virtual disk size" \
+ }, \
+ { \
+ .name = BLOCK_OPT_COMPAT_LEVEL, \
+ .type = QEMU_OPT_STRING, \
+ .help = "Compatibility level (v2 [0.10] or v3 [1.1])" \
+ }, \
+ { \
+ .name = BLOCK_OPT_BACKING_FILE, \
+ .type = QEMU_OPT_STRING, \
+ .help = "File name of a base image" \
+ }, \
+ { \
+ .name = BLOCK_OPT_BACKING_FMT, \
+ .type = QEMU_OPT_STRING, \
+ .help = "Image format of the base image" \
+ }, \
+ { \
+ .name = BLOCK_OPT_DATA_FILE, \
+ .type = QEMU_OPT_STRING, \
+ .help = "File name of an external data file" \
+ }, \
+ { \
+ .name = BLOCK_OPT_DATA_FILE_RAW, \
+ .type = QEMU_OPT_BOOL, \
+ .help = "The external data file must stay valid " \
+ "as a raw image" \
+ }, \
+ { \
+ .name = BLOCK_OPT_ENCRYPT, \
+ .type = QEMU_OPT_BOOL, \
+ .help = "Encrypt the image with format 'aes'. (Deprecated " \
+ "in favor of " BLOCK_OPT_ENCRYPT_FORMAT "=aes)", \
+ }, \
+ { \
+ .name = BLOCK_OPT_ENCRYPT_FORMAT, \
+ .type = QEMU_OPT_STRING, \
+ .help = "Encrypt the image, format choices: 'aes', 'luks'", \
+ }, \
+ BLOCK_CRYPTO_OPT_DEF_KEY_SECRET("encrypt.", \
+ "ID of secret providing qcow AES key or LUKS passphrase"), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_ALG("encrypt."), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_MODE("encrypt."), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_ALG("encrypt."), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_HASH_ALG("encrypt."), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_HASH_ALG("encrypt."), \
+ BLOCK_CRYPTO_OPT_DEF_LUKS_ITER_TIME("encrypt."), \
+ { \
+ .name = BLOCK_OPT_CLUSTER_SIZE, \
+ .type = QEMU_OPT_SIZE, \
+ .help = "qcow2 cluster size", \
+ .def_value_str = stringify(DEFAULT_CLUSTER_SIZE) \
+ }, \
+ { \
+ .name = BLOCK_OPT_PREALLOC, \
+ .type = QEMU_OPT_STRING, \
+ .help = "Preallocation mode (allowed values: off, " \
+ "metadata, falloc, full)" \
+ }, \
+ { \
+ .name = BLOCK_OPT_LAZY_REFCOUNTS, \
+ .type = QEMU_OPT_BOOL, \
+ .help = "Postpone refcount updates", \
+ .def_value_str = "off" \
+ }, \
+ { \
+ .name = BLOCK_OPT_REFCOUNT_BITS, \
+ .type = QEMU_OPT_NUMBER, \
+ .help = "Width of a reference count entry in bits", \
+ .def_value_str = "16" \
+ } \
+
static QemuOptsList qcow2_create_opts = {
.name = "qcow2-create-opts",
.head = QTAILQ_HEAD_INITIALIZER(qcow2_create_opts.head),
.desc = {
- {
- .name = BLOCK_OPT_SIZE,
- .type = QEMU_OPT_SIZE,
- .help = "Virtual disk size"
- },
- {
- .name = BLOCK_OPT_COMPAT_LEVEL,
- .type = QEMU_OPT_STRING,
- .help = "Compatibility level (v2 [0.10] or v3 [1.1])"
- },
- {
- .name = BLOCK_OPT_BACKING_FILE,
- .type = QEMU_OPT_STRING,
- .help = "File name of a base image"
- },
- {
- .name = BLOCK_OPT_BACKING_FMT,
- .type = QEMU_OPT_STRING,
- .help = "Image format of the base image"
- },
- {
- .name = BLOCK_OPT_DATA_FILE,
- .type = QEMU_OPT_STRING,
- .help = "File name of an external data file"
- },
- {
- .name = BLOCK_OPT_DATA_FILE_RAW,
- .type = QEMU_OPT_BOOL,
- .help = "The external data file must stay valid as a raw image"
- },
- {
- .name = BLOCK_OPT_ENCRYPT,
- .type = QEMU_OPT_BOOL,
- .help = "Encrypt the image with format 'aes'. (Deprecated "
- "in favor of " BLOCK_OPT_ENCRYPT_FORMAT "=aes)",
- },
- {
- .name = BLOCK_OPT_ENCRYPT_FORMAT,
- .type = QEMU_OPT_STRING,
- .help = "Encrypt the image, format choices: 'aes', 'luks'",
- },
- BLOCK_CRYPTO_OPT_DEF_KEY_SECRET("encrypt.",
- "ID of secret providing qcow AES key or LUKS passphrase"),
- BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_ALG("encrypt."),
- BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_MODE("encrypt."),
- BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_ALG("encrypt."),
- BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_HASH_ALG("encrypt."),
- BLOCK_CRYPTO_OPT_DEF_LUKS_HASH_ALG("encrypt."),
- BLOCK_CRYPTO_OPT_DEF_LUKS_ITER_TIME("encrypt."),
- {
- .name = BLOCK_OPT_CLUSTER_SIZE,
- .type = QEMU_OPT_SIZE,
- .help = "qcow2 cluster size",
- .def_value_str = stringify(DEFAULT_CLUSTER_SIZE)
- },
- {
- .name = BLOCK_OPT_PREALLOC,
- .type = QEMU_OPT_STRING,
- .help = "Preallocation mode (allowed values: off, metadata, "
- "falloc, full)"
- },
- {
- .name = BLOCK_OPT_LAZY_REFCOUNTS,
- .type = QEMU_OPT_BOOL,
- .help = "Postpone refcount updates",
- .def_value_str = "off"
- },
- {
- .name = BLOCK_OPT_REFCOUNT_BITS,
- .type = QEMU_OPT_NUMBER,
- .help = "Width of a reference count entry in bits",
- .def_value_str = "16"
- },
+ QCOW_COMMON_OPTIONS,
+ { /* end of list */ }
+ }
+};
+
+static QemuOptsList qcow2_amend_opts = {
+ .name = "qcow2-amend-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(qcow2_amend_opts.head),
+ .desc = {
+ QCOW_COMMON_OPTIONS,
{ /* end of list */ }
}
};
@@ -5632,6 +5645,7 @@ BlockDriver bdrv_qcow2 = {
.bdrv_inactivate = qcow2_inactivate,
.create_opts = &qcow2_create_opts,
+ .amend_opts = &qcow2_amend_opts,
.strong_runtime_opts = qcow2_strong_runtime_opts,
.mutable_opts = mutable_opts,
.bdrv_co_check = qcow2_co_check,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 98671ecdf6..1f0524285d 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -412,6 +412,10 @@ struct BlockDriver {
/* List of options for creating images, terminated by name == NULL */
QemuOptsList *create_opts;
+
+ /* List of options for image amend*/
+ QemuOptsList *amend_opts;
+
/*
* If this driver supports reopening images this contains a
* NULL-terminated list of the runtime options that can be
diff --git a/qemu-img.c b/qemu-img.c
index ef422d5471..8f69366f03 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3936,11 +3936,11 @@ static int print_amend_option_help(const char *format)
return 1;
}
- /* Every driver supporting amendment must have create_opts */
- assert(drv->create_opts);
+ /* Every driver supporting amendment must have amend_opts */
+ assert(drv->amend_opts);
printf("Creation options for '%s':\n", format);
- qemu_opts_print_help(drv->create_opts, false);
+ qemu_opts_print_help(drv->amend_opts, false);
printf("\nNote that not all of these options may be amendable.\n");
return 0;
}
@@ -3950,7 +3950,7 @@ static int img_amend(int argc, char **argv)
Error *err = NULL;
int c, ret = 0;
char *options = NULL;
- QemuOptsList *create_opts = NULL;
+ QemuOptsList *amend_opts = NULL;
QemuOpts *opts = NULL;
const char *fmt = NULL, *filename, *cache;
int flags;
@@ -4081,11 +4081,11 @@ static int img_amend(int argc, char **argv)
goto out;
}
- /* Every driver supporting amendment must have create_opts */
- assert(bs->drv->create_opts);
+ /* Every driver supporting amendment must have amend_opts */
+ assert(bs->drv->amend_opts);
- create_opts = qemu_opts_append(create_opts, bs->drv->create_opts);
- opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
+ amend_opts = qemu_opts_append(amend_opts, bs->drv->amend_opts);
+ opts = qemu_opts_create(amend_opts, NULL, 0, &error_abort);
qemu_opts_do_parse(opts, options, NULL, &err);
if (err) {
error_report_err(err);
@@ -4108,7 +4108,7 @@ out:
out_no_progress:
blk_unref(blk);
qemu_opts_del(opts);
- qemu_opts_free(create_opts);
+ qemu_opts_free(amend_opts);
g_free(options);
if (ret) {
--
2.17.2
next prev parent reply other threads:[~2020-05-05 20:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 20:08 [PATCH v4 00/14] LUKS: encryption slot management using amend interface Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 01/14] qcrypto/core: add generic infrastructure for crypto options amendment Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 02/14] qcrypto/luks: implement encryption key management Maxim Levitsky
2020-05-07 11:02 ` Daniel P. Berrangé
2020-05-07 11:08 ` Maxim Levitsky
2020-05-07 11:13 ` Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 03/14] block/amend: add 'force' option Maxim Levitsky
2020-05-05 20:08 ` Maxim Levitsky [this message]
2020-05-05 20:08 ` [PATCH v4 05/14] block/amend: refactor qcow2 amend options Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 06/14] block/crypto: rename two functions Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 07/14] block/crypto: implement the encryption key management Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 08/14] block/qcow2: extend qemu-img amend interface with crypto options Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 09/14] iotests: filter few more luks specific create options Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 10/14] iotests: qemu-img tests for luks key management Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 11/14] block/core: add generic infrastructure for x-blockdev-amend qmp command Maxim Levitsky
2020-05-07 15:29 ` Eric Blake
2020-05-05 20:08 ` [PATCH v4 12/14] block/crypto: implement blockdev-amend Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 13/14] block/qcow2: " Maxim Levitsky
2020-05-05 20:08 ` [PATCH v4 14/14] iotests: add tests for blockdev-amend Maxim Levitsky
2020-05-05 21:09 ` [PATCH v4 00/14] LUKS: encryption slot management using amend interface no-reply
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