Block layer patches
- Make blockdev-reopen stable - Remove deprecated qemu-img backing file without format - rbd: Convert to coroutines and add write zeroes support - rbd: Updated MAINTAINERS - export/fuse: Allow other users access to the export - vhost-user: Fix backends without multiqueue support - Fix drive-backup transaction endless drained section -----BEGIN PGP SIGNATURE----- iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmDoRdIRHGt3b2xmQHJl ZGhhdC5jb20ACgkQfwmycsiPL9bvgQ/+Ogq24n1UOQc8FEKRYfyhajNToQ9ofzWN iLiblSGx2QDq+CauD3qdu6z7DLlqEXeoM4NYM462oIPumptQj+9XZt7ftfh6FLWW 4yJEbjfnVKOba+vFdJ+E0DStwnPaxYdnrPGd53cwHZfbZh4ZmkpTM350mzHHiLTb KYKOgWd+UHZbkYeCVNYTGe30SRBiKeAecTpsVZ5HVhe7LstjByuy5stk8dytLpdV YqdKOToZfOp77XiHr8YcLLp1HHBGlr5hw73V4SDas0beCp7hqtnAqsTYyXBue4xO 4zfD4Gujr5JVOCb0crDTyOmOQY5E+y2dqFoOUF00D5AoN2vj4nfQ9ESkbqlE9BVh mgJ1izSokYlN2X8rIwGXNR5fbxRmxxfkAA4rScNRytj1KxDHyrDxrp/k8YFemxSQ qwgb/FBm0fcr69evPRzovKwZFhcyPremksluHQE4rZZ66qBQ2cGuDJPE7PWVTpPH 67JCrIVK/O6n5p+4ilFHmQQ3aP3ol0frMFcboYVRchJ2MhIDTsfFL3F/tTK8hy86 AmrrdQ1BQIAoKNOKnAmOSOUdExM55OcfPmX69+AhEk2GeWP6kgz5Pks4H3qCiKGf YoRk8F1V+N4q+C0mFFovB61bNQ6COIlBuzmD9EtmpDD/Ta3Wib+3ZnoGVIdPS+OI jyj+qJxd9z4= =kH+r -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging Block layer patches - Make blockdev-reopen stable - Remove deprecated qemu-img backing file without format - rbd: Convert to coroutines and add write zeroes support - rbd: Updated MAINTAINERS - export/fuse: Allow other users access to the export - vhost-user: Fix backends without multiqueue support - Fix drive-backup transaction endless drained section # gpg: Signature made Fri 09 Jul 2021 13:49:22 BST # gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6 # gpg: issuer "kwolf@redhat.com" # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full] # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * remotes/kevin/tags/for-upstream: (28 commits) block: Make blockdev-reopen stable API iotests: Test reopening multiple devices at the same time block: Support multiple reopening with x-blockdev-reopen block: Acquire AioContexts during bdrv_reopen_multiple() block: Add bdrv_reopen_queue_free() qcow2: Fix dangling pointer after reopen for 'file' qemu-img: Improve error for rebase without backing format qemu-img: Require -F with -b backing image qcow2: Prohibit backing file changes in 'qemu-img amend' blockdev: fix drive-backup transaction endless drained section vhost-user: Fix backends without multiqueue support MAINTAINERS: add block/rbd.c reviewer block/rbd: fix type of task->complete iotests/fuse-allow-other: Test allow-other iotests/308: Test +w on read-only FUSE exports export/fuse: Let permissions be adjustable export/fuse: Give SET_ATTR_SIZE its own branch export/fuse: Add allow-other option export/fuse: Pass default_permissions for mount util/uri: do not check argument of uri_free() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
42e1d798a6
@ -3081,7 +3081,8 @@ S: Supported
|
||||
F: block/vmdk.c
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RBD
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M: Jason Dillaman <dillaman@redhat.com>
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M: Ilya Dryomov <idryomov@gmail.com>
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R: Peter Lieven <pl@kamp.de>
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L: qemu-block@nongnu.org
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S: Supported
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F: block/rbd.c
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108
block.c
108
block.c
@ -4095,6 +4095,19 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
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NULL, 0, keep_old_opts);
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}
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void bdrv_reopen_queue_free(BlockReopenQueue *bs_queue)
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{
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if (bs_queue) {
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BlockReopenQueueEntry *bs_entry, *next;
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QTAILQ_FOREACH_SAFE(bs_entry, bs_queue, entry, next) {
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qobject_unref(bs_entry->state.explicit_options);
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qobject_unref(bs_entry->state.options);
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g_free(bs_entry);
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}
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g_free(bs_queue);
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}
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}
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/*
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* Reopen multiple BlockDriverStates atomically & transactionally.
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*
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@ -4111,19 +4124,26 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
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*
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* All affected nodes must be drained between bdrv_reopen_queue() and
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* bdrv_reopen_multiple().
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*
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* To be called from the main thread, with all other AioContexts unlocked.
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*/
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int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
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{
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int ret = -1;
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BlockReopenQueueEntry *bs_entry, *next;
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AioContext *ctx;
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Transaction *tran = tran_new();
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g_autoptr(GHashTable) found = NULL;
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g_autoptr(GSList) refresh_list = NULL;
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assert(qemu_get_current_aio_context() == qemu_get_aio_context());
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assert(bs_queue != NULL);
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QTAILQ_FOREACH(bs_entry, bs_queue, entry) {
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ctx = bdrv_get_aio_context(bs_entry->state.bs);
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aio_context_acquire(ctx);
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ret = bdrv_flush(bs_entry->state.bs);
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aio_context_release(ctx);
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if (ret < 0) {
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error_setg_errno(errp, -ret, "Error flushing drive");
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goto abort;
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@ -4132,7 +4152,10 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
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QTAILQ_FOREACH(bs_entry, bs_queue, entry) {
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assert(bs_entry->state.bs->quiesce_counter > 0);
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ctx = bdrv_get_aio_context(bs_entry->state.bs);
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aio_context_acquire(ctx);
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ret = bdrv_reopen_prepare(&bs_entry->state, bs_queue, tran, errp);
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aio_context_release(ctx);
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if (ret < 0) {
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goto abort;
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}
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@ -4175,7 +4198,10 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
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* to first element.
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*/
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QTAILQ_FOREACH_REVERSE(bs_entry, bs_queue, entry) {
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ctx = bdrv_get_aio_context(bs_entry->state.bs);
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aio_context_acquire(ctx);
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bdrv_reopen_commit(&bs_entry->state);
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aio_context_release(ctx);
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}
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tran_commit(tran);
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@ -4184,7 +4210,10 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
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BlockDriverState *bs = bs_entry->state.bs;
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if (bs->drv->bdrv_reopen_commit_post) {
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ctx = bdrv_get_aio_context(bs);
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aio_context_acquire(ctx);
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bs->drv->bdrv_reopen_commit_post(&bs_entry->state);
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aio_context_release(ctx);
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}
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}
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@ -4195,17 +4224,38 @@ abort:
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tran_abort(tran);
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QTAILQ_FOREACH_SAFE(bs_entry, bs_queue, entry, next) {
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if (bs_entry->prepared) {
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ctx = bdrv_get_aio_context(bs_entry->state.bs);
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aio_context_acquire(ctx);
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bdrv_reopen_abort(&bs_entry->state);
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aio_context_release(ctx);
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}
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qobject_unref(bs_entry->state.explicit_options);
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qobject_unref(bs_entry->state.options);
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}
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cleanup:
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QTAILQ_FOREACH_SAFE(bs_entry, bs_queue, entry, next) {
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g_free(bs_entry);
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bdrv_reopen_queue_free(bs_queue);
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return ret;
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}
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int bdrv_reopen(BlockDriverState *bs, QDict *opts, bool keep_old_opts,
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Error **errp)
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{
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AioContext *ctx = bdrv_get_aio_context(bs);
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BlockReopenQueue *queue;
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int ret;
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bdrv_subtree_drained_begin(bs);
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if (ctx != qemu_get_aio_context()) {
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aio_context_release(ctx);
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}
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g_free(bs_queue);
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queue = bdrv_reopen_queue(NULL, bs, opts, keep_old_opts);
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ret = bdrv_reopen_multiple(queue, errp);
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if (ctx != qemu_get_aio_context()) {
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aio_context_acquire(ctx);
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}
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bdrv_subtree_drained_end(bs);
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return ret;
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}
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@ -4213,18 +4263,11 @@ cleanup:
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int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only,
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Error **errp)
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{
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int ret;
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BlockReopenQueue *queue;
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QDict *opts = qdict_new();
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qdict_put_bool(opts, BDRV_OPT_READ_ONLY, read_only);
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bdrv_subtree_drained_begin(bs);
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queue = bdrv_reopen_queue(NULL, bs, opts, true);
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ret = bdrv_reopen_multiple(queue, errp);
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bdrv_subtree_drained_end(bs);
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return ret;
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return bdrv_reopen(bs, opts, true, errp);
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}
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/*
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@ -4573,6 +4616,8 @@ static void bdrv_reopen_commit(BDRVReopenState *reopen_state)
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/* set BDS specific flags now */
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qobject_unref(bs->explicit_options);
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qobject_unref(bs->options);
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qobject_ref(reopen_state->explicit_options);
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qobject_ref(reopen_state->options);
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bs->explicit_options = reopen_state->explicit_options;
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bs->options = reopen_state->options;
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@ -5074,7 +5119,7 @@ int coroutine_fn bdrv_co_check(BlockDriverState *bs,
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* -ENOTSUP - format driver doesn't support changing the backing file
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*/
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int bdrv_change_backing_file(BlockDriverState *bs, const char *backing_file,
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const char *backing_fmt, bool warn)
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const char *backing_fmt, bool require)
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{
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BlockDriver *drv = bs->drv;
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int ret;
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@ -5088,10 +5133,8 @@ int bdrv_change_backing_file(BlockDriverState *bs, const char *backing_file,
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return -EINVAL;
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}
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if (warn && backing_file && !backing_fmt) {
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warn_report("Deprecated use of backing file without explicit "
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"backing format, use of this image requires "
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"potentially unsafe format probing");
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if (require && backing_file && !backing_fmt) {
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return -EINVAL;
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}
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if (drv->bdrv_change_backing_file != NULL) {
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@ -6601,24 +6644,11 @@ void bdrv_img_create(const char *filename, const char *fmt,
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goto out;
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} else {
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if (!backing_fmt) {
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warn_report("Deprecated use of backing file without explicit "
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"backing format (detected format of %s)",
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bs->drv->format_name);
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if (bs->drv != &bdrv_raw) {
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/*
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* A probe of raw deserves the most attention:
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* leaving the backing format out of the image
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* will ensure bs->probed is set (ensuring we
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* don't accidentally commit into the backing
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* file), and allow more spots to warn the users
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* to fix their toolchain when opening this image
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* later. For other images, we can safely record
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* the format that we probed.
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*/
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backing_fmt = bs->drv->format_name;
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qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, backing_fmt,
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NULL);
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}
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error_setg(&local_err,
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"Backing file specified without backing format");
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error_append_hint(&local_err, "Detected format of %s.",
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bs->drv->format_name);
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goto out;
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}
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if (size == -1) {
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/* Opened BS, have no size */
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@ -6635,9 +6665,9 @@ void bdrv_img_create(const char *filename, const char *fmt,
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}
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/* (backing_file && !(flags & BDRV_O_NO_BACKING)) */
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} else if (backing_file && !backing_fmt) {
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warn_report("Deprecated use of unopened backing file without "
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"explicit backing format, use of this image requires "
|
||||
"potentially unsafe format probing");
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error_setg(&local_err,
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"Backing file specified without backing format");
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goto out;
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}
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if (size == -1) {
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||||
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@ -46,6 +46,12 @@ typedef struct FuseExport {
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char *mountpoint;
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bool writable;
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bool growable;
|
||||
/* Whether allow_other was used as a mount option or not */
|
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bool allow_other;
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||||
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||||
mode_t st_mode;
|
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uid_t st_uid;
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gid_t st_gid;
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} FuseExport;
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static GHashTable *exports;
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@ -57,7 +63,7 @@ static void fuse_export_delete(BlockExport *exp);
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static void init_exports_table(void);
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||||
static int setup_fuse_export(FuseExport *exp, const char *mountpoint,
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Error **errp);
|
||||
bool allow_other, Error **errp);
|
||||
static void read_from_fuse_export(void *opaque);
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||||
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||||
static bool is_regular_file(const char *path, Error **errp);
|
||||
@ -118,7 +124,29 @@ static int fuse_export_create(BlockExport *blk_exp,
|
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exp->writable = blk_exp_args->writable;
|
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exp->growable = args->growable;
|
||||
|
||||
ret = setup_fuse_export(exp, args->mountpoint, errp);
|
||||
/* set default */
|
||||
if (!args->has_allow_other) {
|
||||
args->allow_other = FUSE_EXPORT_ALLOW_OTHER_AUTO;
|
||||
}
|
||||
|
||||
exp->st_mode = S_IFREG | S_IRUSR;
|
||||
if (exp->writable) {
|
||||
exp->st_mode |= S_IWUSR;
|
||||
}
|
||||
exp->st_uid = getuid();
|
||||
exp->st_gid = getgid();
|
||||
|
||||
if (args->allow_other == FUSE_EXPORT_ALLOW_OTHER_AUTO) {
|
||||
/* Ignore errors on our first attempt */
|
||||
ret = setup_fuse_export(exp, args->mountpoint, true, NULL);
|
||||
exp->allow_other = ret == 0;
|
||||
if (ret < 0) {
|
||||
ret = setup_fuse_export(exp, args->mountpoint, false, errp);
|
||||
}
|
||||
} else {
|
||||
exp->allow_other = args->allow_other == FUSE_EXPORT_ALLOW_OTHER_ON;
|
||||
ret = setup_fuse_export(exp, args->mountpoint, exp->allow_other, errp);
|
||||
}
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
@ -146,15 +174,20 @@ static void init_exports_table(void)
|
||||
* Create exp->fuse_session and mount it.
|
||||
*/
|
||||
static int setup_fuse_export(FuseExport *exp, const char *mountpoint,
|
||||
Error **errp)
|
||||
bool allow_other, Error **errp)
|
||||
{
|
||||
const char *fuse_argv[4];
|
||||
char *mount_opts;
|
||||
struct fuse_args fuse_args;
|
||||
int ret;
|
||||
|
||||
/* Needs to match what fuse_init() sets. Only max_read must be supplied. */
|
||||
mount_opts = g_strdup_printf("max_read=%zu", FUSE_MAX_BOUNCE_BYTES);
|
||||
/*
|
||||
* max_read needs to match what fuse_init() sets.
|
||||
* max_write need not be supplied.
|
||||
*/
|
||||
mount_opts = g_strdup_printf("max_read=%zu,default_permissions%s",
|
||||
FUSE_MAX_BOUNCE_BYTES,
|
||||
allow_other ? ",allow_other" : "");
|
||||
|
||||
fuse_argv[0] = ""; /* Dummy program name */
|
||||
fuse_argv[1] = "-o";
|
||||
@ -316,7 +349,6 @@ static void fuse_getattr(fuse_req_t req, fuse_ino_t inode,
|
||||
int64_t length, allocated_blocks;
|
||||
time_t now = time(NULL);
|
||||
FuseExport *exp = fuse_req_userdata(req);
|
||||
mode_t mode;
|
||||
|
||||
length = blk_getlength(exp->common.blk);
|
||||
if (length < 0) {
|
||||
@ -331,17 +363,12 @@ static void fuse_getattr(fuse_req_t req, fuse_ino_t inode,
|
||||
allocated_blocks = DIV_ROUND_UP(allocated_blocks, 512);
|
||||
}
|
||||
|
||||
mode = S_IFREG | S_IRUSR;
|
||||
if (exp->writable) {
|
||||
mode |= S_IWUSR;
|
||||
}
|
||||
|
||||
statbuf = (struct stat) {
|
||||
.st_ino = inode,
|
||||
.st_mode = mode,
|
||||
.st_mode = exp->st_mode,
|
||||
.st_nlink = 1,
|
||||
.st_uid = getuid(),
|
||||
.st_gid = getgid(),
|
||||
.st_uid = exp->st_uid,
|
||||
.st_gid = exp->st_gid,
|
||||
.st_size = length,
|
||||
.st_blksize = blk_bs(exp->common.blk)->bl.request_alignment,
|
||||
.st_blocks = allocated_blocks,
|
||||
@ -387,28 +414,76 @@ static int fuse_do_truncate(const FuseExport *exp, int64_t size,
|
||||
}
|
||||
|
||||
/**
|
||||
* Let clients set file attributes. Only resizing is supported.
|
||||
* Let clients set file attributes. Only resizing and changing
|
||||
* permissions (st_mode, st_uid, st_gid) is allowed.
|
||||
* Changing permissions is only allowed as far as it will actually
|
||||
* permit access: Read-only exports cannot be given +w, and exports
|
||||
* without allow_other cannot be given a different UID or GID, and
|
||||
* they cannot be given non-owner access.
|
||||
*/
|
||||
static void fuse_setattr(fuse_req_t req, fuse_ino_t inode, struct stat *statbuf,
|
||||
int to_set, struct fuse_file_info *fi)
|
||||
{
|
||||
FuseExport *exp = fuse_req_userdata(req);
|
||||
int supported_attrs;
|
||||
int ret;
|
||||
|
||||
if (!exp->writable) {
|
||||
fuse_reply_err(req, EACCES);
|
||||
return;
|
||||
supported_attrs = FUSE_SET_ATTR_SIZE | FUSE_SET_ATTR_MODE;
|
||||
if (exp->allow_other) {
|
||||
supported_attrs |= FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID;
|
||||
}
|
||||
|
||||
if (to_set & ~FUSE_SET_ATTR_SIZE) {
|
||||
if (to_set & ~supported_attrs) {
|
||||
fuse_reply_err(req, ENOTSUP);
|
||||
return;
|
||||
}
|
||||
|
||||
ret = fuse_do_truncate(exp, statbuf->st_size, true, PREALLOC_MODE_OFF);
|
||||
if (ret < 0) {
|
||||
fuse_reply_err(req, -ret);
|
||||
return;
|
||||
/* Do some argument checks first before committing to anything */
|
||||
if (to_set & FUSE_SET_ATTR_MODE) {
|
||||
/*
|
||||
* Without allow_other, non-owners can never access the export, so do
|
||||
* not allow setting permissions for them
|
||||
*/
|
||||
if (!exp->allow_other &&
|
||||
(statbuf->st_mode & (S_IRWXG | S_IRWXO)) != 0)
|
||||
{
|
||||
fuse_reply_err(req, EPERM);
|
||||
return;
|
||||
}
|
||||
|
||||
/* +w for read-only exports makes no sense, disallow it */
|
||||
if (!exp->writable &&
|
||||
(statbuf->st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)) != 0)
|
||||
{
|
||||
fuse_reply_err(req, EROFS);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (to_set & FUSE_SET_ATTR_SIZE) {
|
||||
if (!exp->writable) {
|
||||
fuse_reply_err(req, EACCES);
|
||||
return;
|
||||
}
|
||||
|
||||
ret = fuse_do_truncate(exp, statbuf->st_size, true, PREALLOC_MODE_OFF);
|
||||
if (ret < 0) {
|
||||
fuse_reply_err(req, -ret);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (to_set & FUSE_SET_ATTR_MODE) {
|
||||
/* Ignore FUSE-supplied file type, only change the mode */
|
||||
exp->st_mode = (statbuf->st_mode & 07777) | S_IFREG;
|
||||
}
|
||||
|
||||
if (to_set & FUSE_SET_ATTR_UID) {
|
||||
exp->st_uid = statbuf->st_uid;
|
||||
}
|
||||
|
||||
if (to_set & FUSE_SET_ATTR_GID) {
|
||||
exp->st_gid = statbuf->st_gid;
|
||||
}
|
||||
|
||||
fuse_getattr(req, inode, fi);
|
||||
|
||||
@ -147,9 +147,7 @@ out:
|
||||
if (qp) {
|
||||
query_params_free(qp);
|
||||
}
|
||||
if (uri) {
|
||||
uri_free(uri);
|
||||
}
|
||||
uri_free(uri);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
@ -1926,6 +1926,7 @@ static void qcow2_refresh_limits(BlockDriverState *bs, Error **errp)
|
||||
static int qcow2_reopen_prepare(BDRVReopenState *state,
|
||||
BlockReopenQueue *queue, Error **errp)
|
||||
{
|
||||
BDRVQcow2State *s = state->bs->opaque;
|
||||
Qcow2ReopenState *r;
|
||||
int ret;
|
||||
|
||||
@ -1956,6 +1957,16 @@ static int qcow2_reopen_prepare(BDRVReopenState *state,
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Without an external data file, s->data_file points to the same BdrvChild
|
||||
* as bs->file. It needs to be resynced after reopen because bs->file may
|
||||
* be changed. We can't use it in the meantime.
|
||||
*/
|
||||
if (!has_data_file(state->bs)) {
|
||||
assert(s->data_file == state->bs->file);
|
||||
s->data_file = NULL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
@ -1966,7 +1977,16 @@ fail:
|
||||
|
||||
static void qcow2_reopen_commit(BDRVReopenState *state)
|
||||
{
|
||||
BDRVQcow2State *s = state->bs->opaque;
|
||||
|
||||
qcow2_update_options_commit(state->bs, state->opaque);
|
||||
if (!s->data_file) {
|
||||
/*
|
||||
* If we don't have an external data file, s->data_file was cleared by
|
||||
* qcow2_reopen_prepare() and needs to be updated.
|
||||
*/
|
||||
s->data_file = state->bs->file;
|
||||
}
|
||||
g_free(state->opaque);
|
||||
}
|
||||
|
||||
@ -1990,6 +2010,15 @@ static void qcow2_reopen_commit_post(BDRVReopenState *state)
|
||||
|
||||
static void qcow2_reopen_abort(BDRVReopenState *state)
|
||||
{
|
||||
BDRVQcow2State *s = state->bs->opaque;
|
||||
|
||||
if (!s->data_file) {
|
||||
/*
|
||||
* If we don't have an external data file, s->data_file was cleared by
|
||||
* qcow2_reopen_prepare() and needs to be restored.
|
||||
*/
|
||||
s->data_file = state->bs->file;
|
||||
}
|
||||
qcow2_update_options_abort(state->bs, state->opaque);
|
||||
g_free(state->opaque);
|
||||
}
|
||||
@ -5620,15 +5649,10 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
|
||||
if (backing_file || backing_format) {
|
||||
if (g_strcmp0(backing_file, s->image_backing_file) ||
|
||||
g_strcmp0(backing_format, s->image_backing_format)) {
|
||||
warn_report("Deprecated use of amend to alter the backing file; "
|
||||
"use qemu-img rebase instead");
|
||||
}
|
||||
ret = qcow2_change_backing_file(bs,
|
||||
backing_file ?: s->image_backing_file,
|
||||
backing_format ?: s->image_backing_format);
|
||||
if (ret < 0) {
|
||||
error_setg_errno(errp, -ret, "Failed to change the backing file");
|
||||
return ret;
|
||||
error_setg(errp, "Cannot amend the backing file");
|
||||
error_append_hint(errp,
|
||||
"You can use 'qemu-img rebase' instead.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
779
block/rbd.c
779
block/rbd.c
@ -55,49 +55,30 @@
|
||||
* leading "\".
|
||||
*/
|
||||
|
||||
/* rbd_aio_discard added in 0.1.2 */
|
||||
#if LIBRBD_VERSION_CODE >= LIBRBD_VERSION(0, 1, 2)
|
||||
#define LIBRBD_SUPPORTS_DISCARD
|
||||
#else
|
||||
#undef LIBRBD_SUPPORTS_DISCARD
|
||||
#endif
|
||||
|
||||
#define OBJ_MAX_SIZE (1UL << OBJ_DEFAULT_OBJ_ORDER)
|
||||
|
||||
#define RBD_MAX_SNAPS 100
|
||||
|
||||
/* The LIBRBD_SUPPORTS_IOVEC is defined in librbd.h */
|
||||
#ifdef LIBRBD_SUPPORTS_IOVEC
|
||||
#define LIBRBD_USE_IOVEC 1
|
||||
#else
|
||||
#define LIBRBD_USE_IOVEC 0
|
||||
#endif
|
||||
#define RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN 8
|
||||
|
||||
static const char rbd_luks_header_verification[
|
||||
RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN] = {
|
||||
'L', 'U', 'K', 'S', 0xBA, 0xBE, 0, 1
|
||||
};
|
||||
|
||||
static const char rbd_luks2_header_verification[
|
||||
RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN] = {
|
||||
'L', 'U', 'K', 'S', 0xBA, 0xBE, 0, 2
|
||||
};
|
||||
|
||||
typedef enum {
|
||||
RBD_AIO_READ,
|
||||
RBD_AIO_WRITE,
|
||||
RBD_AIO_DISCARD,
|
||||
RBD_AIO_FLUSH
|
||||
RBD_AIO_FLUSH,
|
||||
RBD_AIO_WRITE_ZEROES
|
||||
} RBDAIOCmd;
|
||||
|
||||
typedef struct RBDAIOCB {
|
||||
BlockAIOCB common;
|
||||
int64_t ret;
|
||||
QEMUIOVector *qiov;
|
||||
char *bounce;
|
||||
RBDAIOCmd cmd;
|
||||
int error;
|
||||
struct BDRVRBDState *s;
|
||||
} RBDAIOCB;
|
||||
|
||||
typedef struct RADOSCB {
|
||||
RBDAIOCB *acb;
|
||||
struct BDRVRBDState *s;
|
||||
int64_t size;
|
||||
char *buf;
|
||||
int64_t ret;
|
||||
} RADOSCB;
|
||||
|
||||
typedef struct BDRVRBDState {
|
||||
rados_t cluster;
|
||||
rados_ioctx_t io_ctx;
|
||||
@ -106,8 +87,16 @@ typedef struct BDRVRBDState {
|
||||
char *snap;
|
||||
char *namespace;
|
||||
uint64_t image_size;
|
||||
uint64_t object_size;
|
||||
} BDRVRBDState;
|
||||
|
||||
typedef struct RBDTask {
|
||||
BlockDriverState *bs;
|
||||
Coroutine *co;
|
||||
bool complete;
|
||||
int64_t ret;
|
||||
} RBDTask;
|
||||
|
||||
static int qemu_rbd_connect(rados_t *cluster, rados_ioctx_t *io_ctx,
|
||||
BlockdevOptionsRbd *opts, bool cache,
|
||||
const char *keypairs, const char *secretid,
|
||||
@ -251,14 +240,6 @@ done:
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
static void qemu_rbd_refresh_limits(BlockDriverState *bs, Error **errp)
|
||||
{
|
||||
/* XXX Does RBD support AIO on less than 512-byte alignment? */
|
||||
bs->bl.request_alignment = 512;
|
||||
}
|
||||
|
||||
|
||||
static int qemu_rbd_set_auth(rados_t cluster, BlockdevOptionsRbd *opts,
|
||||
Error **errp)
|
||||
{
|
||||
@ -340,17 +321,203 @@ static int qemu_rbd_set_keypairs(rados_t cluster, const char *keypairs_json,
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void qemu_rbd_memset(RADOSCB *rcb, int64_t offs)
|
||||
#ifdef LIBRBD_SUPPORTS_ENCRYPTION
|
||||
static int qemu_rbd_convert_luks_options(
|
||||
RbdEncryptionOptionsLUKSBase *luks_opts,
|
||||
char **passphrase,
|
||||
size_t *passphrase_len,
|
||||
Error **errp)
|
||||
{
|
||||
if (LIBRBD_USE_IOVEC) {
|
||||
RBDAIOCB *acb = rcb->acb;
|
||||
iov_memset(acb->qiov->iov, acb->qiov->niov, offs, 0,
|
||||
acb->qiov->size - offs);
|
||||
} else {
|
||||
memset(rcb->buf + offs, 0, rcb->size - offs);
|
||||
}
|
||||
return qcrypto_secret_lookup(luks_opts->key_secret, (uint8_t **)passphrase,
|
||||
passphrase_len, errp);
|
||||
}
|
||||
|
||||
static int qemu_rbd_convert_luks_create_options(
|
||||
RbdEncryptionCreateOptionsLUKSBase *luks_opts,
|
||||
rbd_encryption_algorithm_t *alg,
|
||||
char **passphrase,
|
||||
size_t *passphrase_len,
|
||||
Error **errp)
|
||||
{
|
||||
int r = 0;
|
||||
|
||||
r = qemu_rbd_convert_luks_options(
|
||||
qapi_RbdEncryptionCreateOptionsLUKSBase_base(luks_opts),
|
||||
passphrase, passphrase_len, errp);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
|
||||
if (luks_opts->has_cipher_alg) {
|
||||
switch (luks_opts->cipher_alg) {
|
||||
case QCRYPTO_CIPHER_ALG_AES_128: {
|
||||
*alg = RBD_ENCRYPTION_ALGORITHM_AES128;
|
||||
break;
|
||||
}
|
||||
case QCRYPTO_CIPHER_ALG_AES_256: {
|
||||
*alg = RBD_ENCRYPTION_ALGORITHM_AES256;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
r = -ENOTSUP;
|
||||
error_setg_errno(errp, -r, "unknown encryption algorithm: %u",
|
||||
luks_opts->cipher_alg);
|
||||
return r;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* default alg */
|
||||
*alg = RBD_ENCRYPTION_ALGORITHM_AES256;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int qemu_rbd_encryption_format(rbd_image_t image,
|
||||
RbdEncryptionCreateOptions *encrypt,
|
||||
Error **errp)
|
||||
{
|
||||
int r = 0;
|
||||
g_autofree char *passphrase = NULL;
|
||||
size_t passphrase_len;
|
||||
rbd_encryption_format_t format;
|
||||
rbd_encryption_options_t opts;
|
||||
rbd_encryption_luks1_format_options_t luks_opts;
|
||||
rbd_encryption_luks2_format_options_t luks2_opts;
|
||||
size_t opts_size;
|
||||
uint64_t raw_size, effective_size;
|
||||
|
||||
r = rbd_get_size(image, &raw_size);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "cannot get raw image size");
|
||||
return r;
|
||||
}
|
||||
|
||||
switch (encrypt->format) {
|
||||
case RBD_IMAGE_ENCRYPTION_FORMAT_LUKS: {
|
||||
memset(&luks_opts, 0, sizeof(luks_opts));
|
||||
format = RBD_ENCRYPTION_FORMAT_LUKS1;
|
||||
opts = &luks_opts;
|
||||
opts_size = sizeof(luks_opts);
|
||||
r = qemu_rbd_convert_luks_create_options(
|
||||
qapi_RbdEncryptionCreateOptionsLUKS_base(&encrypt->u.luks),
|
||||
&luks_opts.alg, &passphrase, &passphrase_len, errp);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
luks_opts.passphrase = passphrase;
|
||||
luks_opts.passphrase_size = passphrase_len;
|
||||
break;
|
||||
}
|
||||
case RBD_IMAGE_ENCRYPTION_FORMAT_LUKS2: {
|
||||
memset(&luks2_opts, 0, sizeof(luks2_opts));
|
||||
format = RBD_ENCRYPTION_FORMAT_LUKS2;
|
||||
opts = &luks2_opts;
|
||||
opts_size = sizeof(luks2_opts);
|
||||
r = qemu_rbd_convert_luks_create_options(
|
||||
qapi_RbdEncryptionCreateOptionsLUKS2_base(
|
||||
&encrypt->u.luks2),
|
||||
&luks2_opts.alg, &passphrase, &passphrase_len, errp);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
luks2_opts.passphrase = passphrase;
|
||||
luks2_opts.passphrase_size = passphrase_len;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
r = -ENOTSUP;
|
||||
error_setg_errno(
|
||||
errp, -r, "unknown image encryption format: %u",
|
||||
encrypt->format);
|
||||
return r;
|
||||
}
|
||||
}
|
||||
|
||||
r = rbd_encryption_format(image, format, opts, opts_size);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "encryption format fail");
|
||||
return r;
|
||||
}
|
||||
|
||||
r = rbd_get_size(image, &effective_size);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "cannot get effective image size");
|
||||
return r;
|
||||
}
|
||||
|
||||
r = rbd_resize(image, raw_size + (raw_size - effective_size));
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "cannot resize image after format");
|
||||
return r;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int qemu_rbd_encryption_load(rbd_image_t image,
|
||||
RbdEncryptionOptions *encrypt,
|
||||
Error **errp)
|
||||
{
|
||||
int r = 0;
|
||||
g_autofree char *passphrase = NULL;
|
||||
size_t passphrase_len;
|
||||
rbd_encryption_luks1_format_options_t luks_opts;
|
||||
rbd_encryption_luks2_format_options_t luks2_opts;
|
||||
rbd_encryption_format_t format;
|
||||
rbd_encryption_options_t opts;
|
||||
size_t opts_size;
|
||||
|
||||
switch (encrypt->format) {
|
||||
case RBD_IMAGE_ENCRYPTION_FORMAT_LUKS: {
|
||||
memset(&luks_opts, 0, sizeof(luks_opts));
|
||||
format = RBD_ENCRYPTION_FORMAT_LUKS1;
|
||||
opts = &luks_opts;
|
||||
opts_size = sizeof(luks_opts);
|
||||
r = qemu_rbd_convert_luks_options(
|
||||
qapi_RbdEncryptionOptionsLUKS_base(&encrypt->u.luks),
|
||||
&passphrase, &passphrase_len, errp);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
luks_opts.passphrase = passphrase;
|
||||
luks_opts.passphrase_size = passphrase_len;
|
||||
break;
|
||||
}
|
||||
case RBD_IMAGE_ENCRYPTION_FORMAT_LUKS2: {
|
||||
memset(&luks2_opts, 0, sizeof(luks2_opts));
|
||||
format = RBD_ENCRYPTION_FORMAT_LUKS2;
|
||||
opts = &luks2_opts;
|
||||
opts_size = sizeof(luks2_opts);
|
||||
r = qemu_rbd_convert_luks_options(
|
||||
qapi_RbdEncryptionOptionsLUKS2_base(&encrypt->u.luks2),
|
||||
&passphrase, &passphrase_len, errp);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
luks2_opts.passphrase = passphrase;
|
||||
luks2_opts.passphrase_size = passphrase_len;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
r = -ENOTSUP;
|
||||
error_setg_errno(
|
||||
errp, -r, "unknown image encryption format: %u",
|
||||
encrypt->format);
|
||||
return r;
|
||||
}
|
||||
}
|
||||
|
||||
r = rbd_encryption_load(image, format, opts, opts_size);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "encryption load fail");
|
||||
return r;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* FIXME Deprecate and remove keypairs or make it available in QMP. */
|
||||
static int qemu_rbd_do_create(BlockdevCreateOptions *options,
|
||||
const char *keypairs, const char *password_secret,
|
||||
@ -368,6 +535,13 @@ static int qemu_rbd_do_create(BlockdevCreateOptions *options,
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
#ifndef LIBRBD_SUPPORTS_ENCRYPTION
|
||||
if (opts->has_encrypt) {
|
||||
error_setg(errp, "RBD library does not support image encryption");
|
||||
return -ENOTSUP;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (opts->has_cluster_size) {
|
||||
int64_t objsize = opts->cluster_size;
|
||||
if ((objsize - 1) & objsize) { /* not a power of 2? */
|
||||
@ -393,6 +567,28 @@ static int qemu_rbd_do_create(BlockdevCreateOptions *options,
|
||||
goto out;
|
||||
}
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_ENCRYPTION
|
||||
if (opts->has_encrypt) {
|
||||
rbd_image_t image;
|
||||
|
||||
ret = rbd_open(io_ctx, opts->location->image, &image, NULL);
|
||||
if (ret < 0) {
|
||||
error_setg_errno(errp, -ret,
|
||||
"error opening image '%s' for encryption format",
|
||||
opts->location->image);
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = qemu_rbd_encryption_format(image, opts->encrypt, errp);
|
||||
rbd_close(image);
|
||||
if (ret < 0) {
|
||||
/* encryption format fail, try removing the image */
|
||||
rbd_remove(io_ctx, opts->location->image);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = 0;
|
||||
out:
|
||||
rados_ioctx_destroy(io_ctx);
|
||||
@ -405,6 +601,43 @@ static int qemu_rbd_co_create(BlockdevCreateOptions *options, Error **errp)
|
||||
return qemu_rbd_do_create(options, NULL, NULL, errp);
|
||||
}
|
||||
|
||||
static int qemu_rbd_extract_encryption_create_options(
|
||||
QemuOpts *opts,
|
||||
RbdEncryptionCreateOptions **spec,
|
||||
Error **errp)
|
||||
{
|
||||
QDict *opts_qdict;
|
||||
QDict *encrypt_qdict;
|
||||
Visitor *v;
|
||||
int ret = 0;
|
||||
|
||||
opts_qdict = qemu_opts_to_qdict(opts, NULL);
|
||||
qdict_extract_subqdict(opts_qdict, &encrypt_qdict, "encrypt.");
|
||||
qobject_unref(opts_qdict);
|
||||
if (!qdict_size(encrypt_qdict)) {
|
||||
*spec = NULL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Convert options into a QAPI object */
|
||||
v = qobject_input_visitor_new_flat_confused(encrypt_qdict, errp);
|
||||
if (!v) {
|
||||
ret = -EINVAL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
visit_type_RbdEncryptionCreateOptions(v, NULL, spec, errp);
|
||||
visit_free(v);
|
||||
if (!*spec) {
|
||||
ret = -EINVAL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
exit:
|
||||
qobject_unref(encrypt_qdict);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv,
|
||||
const char *filename,
|
||||
QemuOpts *opts,
|
||||
@ -413,6 +646,7 @@ static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv,
|
||||
BlockdevCreateOptions *create_options;
|
||||
BlockdevCreateOptionsRbd *rbd_opts;
|
||||
BlockdevOptionsRbd *loc;
|
||||
RbdEncryptionCreateOptions *encrypt = NULL;
|
||||
Error *local_err = NULL;
|
||||
const char *keypairs, *password_secret;
|
||||
QDict *options = NULL;
|
||||
@ -441,6 +675,13 @@ static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv,
|
||||
goto exit;
|
||||
}
|
||||
|
||||
ret = qemu_rbd_extract_encryption_create_options(opts, &encrypt, errp);
|
||||
if (ret < 0) {
|
||||
goto exit;
|
||||
}
|
||||
rbd_opts->encrypt = encrypt;
|
||||
rbd_opts->has_encrypt = !!encrypt;
|
||||
|
||||
/*
|
||||
* Caution: while qdict_get_try_str() is fine, getting non-string
|
||||
* types would require more care. When @options come from -blockdev
|
||||
@ -469,53 +710,6 @@ exit:
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* This aio completion is being called from rbd_finish_bh() and runs in qemu
|
||||
* BH context.
|
||||
*/
|
||||
static void qemu_rbd_complete_aio(RADOSCB *rcb)
|
||||
{
|
||||
RBDAIOCB *acb = rcb->acb;
|
||||
int64_t r;
|
||||
|
||||
r = rcb->ret;
|
||||
|
||||
if (acb->cmd != RBD_AIO_READ) {
|
||||
if (r < 0) {
|
||||
acb->ret = r;
|
||||
acb->error = 1;
|
||||
} else if (!acb->error) {
|
||||
acb->ret = rcb->size;
|
||||
}
|
||||
} else {
|
||||
if (r < 0) {
|
||||
qemu_rbd_memset(rcb, 0);
|
||||
acb->ret = r;
|
||||
acb->error = 1;
|
||||
} else if (r < rcb->size) {
|
||||
qemu_rbd_memset(rcb, r);
|
||||
if (!acb->error) {
|
||||
acb->ret = rcb->size;
|
||||
}
|
||||
} else if (!acb->error) {
|
||||
acb->ret = r;
|
||||
}
|
||||
}
|
||||
|
||||
g_free(rcb);
|
||||
|
||||
if (!LIBRBD_USE_IOVEC) {
|
||||
if (acb->cmd == RBD_AIO_READ) {
|
||||
qemu_iovec_from_buf(acb->qiov, 0, acb->bounce, acb->qiov->size);
|
||||
}
|
||||
qemu_vfree(acb->bounce);
|
||||
}
|
||||
|
||||
acb->common.cb(acb->common.opaque, (acb->ret > 0 ? 0 : acb->ret));
|
||||
|
||||
qemu_aio_unref(acb);
|
||||
}
|
||||
|
||||
static char *qemu_rbd_mon_host(BlockdevOptionsRbd *opts, Error **errp)
|
||||
{
|
||||
const char **vals;
|
||||
@ -702,6 +896,7 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
|
||||
const QDictEntry *e;
|
||||
Error *local_err = NULL;
|
||||
char *keypairs, *secretid;
|
||||
rbd_image_info_t info;
|
||||
int r;
|
||||
|
||||
keypairs = g_strdup(qdict_get_try_str(options, "=keyvalue-pairs"));
|
||||
@ -766,30 +961,49 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
|
||||
goto failed_open;
|
||||
}
|
||||
|
||||
r = rbd_get_size(s->image, &s->image_size);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "error getting image size from %s",
|
||||
s->image_name);
|
||||
rbd_close(s->image);
|
||||
goto failed_open;
|
||||
if (opts->has_encrypt) {
|
||||
#ifdef LIBRBD_SUPPORTS_ENCRYPTION
|
||||
r = qemu_rbd_encryption_load(s->image, opts->encrypt, errp);
|
||||
if (r < 0) {
|
||||
goto failed_post_open;
|
||||
}
|
||||
#else
|
||||
r = -ENOTSUP;
|
||||
error_setg(errp, "RBD library does not support image encryption");
|
||||
goto failed_post_open;
|
||||
#endif
|
||||
}
|
||||
|
||||
r = rbd_stat(s->image, &info, sizeof(info));
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "error getting image info from %s",
|
||||
s->image_name);
|
||||
goto failed_post_open;
|
||||
}
|
||||
s->image_size = info.size;
|
||||
s->object_size = info.obj_size;
|
||||
|
||||
/* If we are using an rbd snapshot, we must be r/o, otherwise
|
||||
* leave as-is */
|
||||
if (s->snap != NULL) {
|
||||
r = bdrv_apply_auto_read_only(bs, "rbd snapshots are read-only", errp);
|
||||
if (r < 0) {
|
||||
rbd_close(s->image);
|
||||
goto failed_open;
|
||||
goto failed_post_open;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_WRITE_ZEROES
|
||||
bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK;
|
||||
#endif
|
||||
|
||||
/* When extending regular files, we get zeros from the OS */
|
||||
bs->supported_truncate_flags = BDRV_REQ_ZERO_WRITE;
|
||||
|
||||
r = 0;
|
||||
goto out;
|
||||
|
||||
failed_post_open:
|
||||
rbd_close(s->image);
|
||||
failed_open:
|
||||
rados_ioctx_destroy(s->io_ctx);
|
||||
g_free(s->snap);
|
||||
@ -849,229 +1063,213 @@ static int qemu_rbd_resize(BlockDriverState *bs, uint64_t size)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const AIOCBInfo rbd_aiocb_info = {
|
||||
.aiocb_size = sizeof(RBDAIOCB),
|
||||
};
|
||||
|
||||
static void rbd_finish_bh(void *opaque)
|
||||
static void qemu_rbd_finish_bh(void *opaque)
|
||||
{
|
||||
RADOSCB *rcb = opaque;
|
||||
qemu_rbd_complete_aio(rcb);
|
||||
RBDTask *task = opaque;
|
||||
task->complete = true;
|
||||
aio_co_wake(task->co);
|
||||
}
|
||||
|
||||
/*
|
||||
* This is the callback function for rbd_aio_read and _write
|
||||
* This is the completion callback function for all rbd aio calls
|
||||
* started from qemu_rbd_start_co().
|
||||
*
|
||||
* Note: this function is being called from a non qemu thread so
|
||||
* we need to be careful about what we do here. Generally we only
|
||||
* schedule a BH, and do the rest of the io completion handling
|
||||
* from rbd_finish_bh() which runs in a qemu context.
|
||||
* from qemu_rbd_finish_bh() which runs in a qemu context.
|
||||
*/
|
||||
static void rbd_finish_aiocb(rbd_completion_t c, RADOSCB *rcb)
|
||||
static void qemu_rbd_completion_cb(rbd_completion_t c, RBDTask *task)
|
||||
{
|
||||
RBDAIOCB *acb = rcb->acb;
|
||||
|
||||
rcb->ret = rbd_aio_get_return_value(c);
|
||||
task->ret = rbd_aio_get_return_value(c);
|
||||
rbd_aio_release(c);
|
||||
|
||||
replay_bh_schedule_oneshot_event(bdrv_get_aio_context(acb->common.bs),
|
||||
rbd_finish_bh, rcb);
|
||||
aio_bh_schedule_oneshot(bdrv_get_aio_context(task->bs),
|
||||
qemu_rbd_finish_bh, task);
|
||||
}
|
||||
|
||||
static int rbd_aio_discard_wrapper(rbd_image_t image,
|
||||
uint64_t off,
|
||||
uint64_t len,
|
||||
rbd_completion_t comp)
|
||||
static int coroutine_fn qemu_rbd_start_co(BlockDriverState *bs,
|
||||
uint64_t offset,
|
||||
uint64_t bytes,
|
||||
QEMUIOVector *qiov,
|
||||
int flags,
|
||||
RBDAIOCmd cmd)
|
||||
{
|
||||
#ifdef LIBRBD_SUPPORTS_DISCARD
|
||||
return rbd_aio_discard(image, off, len, comp);
|
||||
#else
|
||||
return -ENOTSUP;
|
||||
#endif
|
||||
}
|
||||
|
||||
static int rbd_aio_flush_wrapper(rbd_image_t image,
|
||||
rbd_completion_t comp)
|
||||
{
|
||||
#ifdef LIBRBD_SUPPORTS_AIO_FLUSH
|
||||
return rbd_aio_flush(image, comp);
|
||||
#else
|
||||
return -ENOTSUP;
|
||||
#endif
|
||||
}
|
||||
|
||||
static BlockAIOCB *rbd_start_aio(BlockDriverState *bs,
|
||||
int64_t off,
|
||||
QEMUIOVector *qiov,
|
||||
int64_t size,
|
||||
BlockCompletionFunc *cb,
|
||||
void *opaque,
|
||||
RBDAIOCmd cmd)
|
||||
{
|
||||
RBDAIOCB *acb;
|
||||
RADOSCB *rcb = NULL;
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
RBDTask task = { .bs = bs, .co = qemu_coroutine_self() };
|
||||
rbd_completion_t c;
|
||||
int r;
|
||||
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
assert(!qiov || qiov->size == bytes);
|
||||
|
||||
acb = qemu_aio_get(&rbd_aiocb_info, bs, cb, opaque);
|
||||
acb->cmd = cmd;
|
||||
acb->qiov = qiov;
|
||||
assert(!qiov || qiov->size == size);
|
||||
|
||||
rcb = g_new(RADOSCB, 1);
|
||||
|
||||
if (!LIBRBD_USE_IOVEC) {
|
||||
if (cmd == RBD_AIO_DISCARD || cmd == RBD_AIO_FLUSH) {
|
||||
acb->bounce = NULL;
|
||||
} else {
|
||||
acb->bounce = qemu_try_blockalign(bs, qiov->size);
|
||||
if (acb->bounce == NULL) {
|
||||
goto failed;
|
||||
}
|
||||
}
|
||||
if (cmd == RBD_AIO_WRITE) {
|
||||
qemu_iovec_to_buf(acb->qiov, 0, acb->bounce, qiov->size);
|
||||
}
|
||||
rcb->buf = acb->bounce;
|
||||
}
|
||||
|
||||
acb->ret = 0;
|
||||
acb->error = 0;
|
||||
acb->s = s;
|
||||
|
||||
rcb->acb = acb;
|
||||
rcb->s = acb->s;
|
||||
rcb->size = size;
|
||||
r = rbd_aio_create_completion(rcb, (rbd_callback_t) rbd_finish_aiocb, &c);
|
||||
r = rbd_aio_create_completion(&task,
|
||||
(rbd_callback_t) qemu_rbd_completion_cb, &c);
|
||||
if (r < 0) {
|
||||
goto failed;
|
||||
return r;
|
||||
}
|
||||
|
||||
switch (cmd) {
|
||||
case RBD_AIO_WRITE: {
|
||||
/*
|
||||
* RBD APIs don't allow us to write more than actual size, so in order
|
||||
* to support growing images, we resize the image before write
|
||||
* operations that exceed the current size.
|
||||
*/
|
||||
if (off + size > s->image_size) {
|
||||
r = qemu_rbd_resize(bs, off + size);
|
||||
if (r < 0) {
|
||||
goto failed_completion;
|
||||
}
|
||||
}
|
||||
#ifdef LIBRBD_SUPPORTS_IOVEC
|
||||
r = rbd_aio_writev(s->image, qiov->iov, qiov->niov, off, c);
|
||||
#else
|
||||
r = rbd_aio_write(s->image, off, size, rcb->buf, c);
|
||||
#endif
|
||||
break;
|
||||
}
|
||||
case RBD_AIO_READ:
|
||||
#ifdef LIBRBD_SUPPORTS_IOVEC
|
||||
r = rbd_aio_readv(s->image, qiov->iov, qiov->niov, off, c);
|
||||
#else
|
||||
r = rbd_aio_read(s->image, off, size, rcb->buf, c);
|
||||
#endif
|
||||
r = rbd_aio_readv(s->image, qiov->iov, qiov->niov, offset, c);
|
||||
break;
|
||||
case RBD_AIO_WRITE:
|
||||
r = rbd_aio_writev(s->image, qiov->iov, qiov->niov, offset, c);
|
||||
break;
|
||||
case RBD_AIO_DISCARD:
|
||||
r = rbd_aio_discard_wrapper(s->image, off, size, c);
|
||||
r = rbd_aio_discard(s->image, offset, bytes, c);
|
||||
break;
|
||||
case RBD_AIO_FLUSH:
|
||||
r = rbd_aio_flush_wrapper(s->image, c);
|
||||
r = rbd_aio_flush(s->image, c);
|
||||
break;
|
||||
#ifdef LIBRBD_SUPPORTS_WRITE_ZEROES
|
||||
case RBD_AIO_WRITE_ZEROES: {
|
||||
int zero_flags = 0;
|
||||
#ifdef RBD_WRITE_ZEROES_FLAG_THICK_PROVISION
|
||||
if (!(flags & BDRV_REQ_MAY_UNMAP)) {
|
||||
zero_flags = RBD_WRITE_ZEROES_FLAG_THICK_PROVISION;
|
||||
}
|
||||
#endif
|
||||
r = rbd_aio_write_zeroes(s->image, offset, bytes, c, zero_flags, 0);
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
default:
|
||||
r = -EINVAL;
|
||||
}
|
||||
|
||||
if (r < 0) {
|
||||
goto failed_completion;
|
||||
}
|
||||
return &acb->common;
|
||||
|
||||
failed_completion:
|
||||
rbd_aio_release(c);
|
||||
failed:
|
||||
g_free(rcb);
|
||||
if (!LIBRBD_USE_IOVEC) {
|
||||
qemu_vfree(acb->bounce);
|
||||
error_report("rbd request failed early: cmd %d offset %" PRIu64
|
||||
" bytes %" PRIu64 " flags %d r %d (%s)", cmd, offset,
|
||||
bytes, flags, r, strerror(-r));
|
||||
rbd_aio_release(c);
|
||||
return r;
|
||||
}
|
||||
|
||||
qemu_aio_unref(acb);
|
||||
return NULL;
|
||||
}
|
||||
while (!task.complete) {
|
||||
qemu_coroutine_yield();
|
||||
}
|
||||
|
||||
static BlockAIOCB *qemu_rbd_aio_preadv(BlockDriverState *bs,
|
||||
uint64_t offset, uint64_t bytes,
|
||||
QEMUIOVector *qiov, int flags,
|
||||
BlockCompletionFunc *cb,
|
||||
void *opaque)
|
||||
{
|
||||
return rbd_start_aio(bs, offset, qiov, bytes, cb, opaque,
|
||||
RBD_AIO_READ);
|
||||
}
|
||||
if (task.ret < 0) {
|
||||
error_report("rbd request failed: cmd %d offset %" PRIu64 " bytes %"
|
||||
PRIu64 " flags %d task.ret %" PRIi64 " (%s)", cmd, offset,
|
||||
bytes, flags, task.ret, strerror(-task.ret));
|
||||
return task.ret;
|
||||
}
|
||||
|
||||
static BlockAIOCB *qemu_rbd_aio_pwritev(BlockDriverState *bs,
|
||||
uint64_t offset, uint64_t bytes,
|
||||
QEMUIOVector *qiov, int flags,
|
||||
BlockCompletionFunc *cb,
|
||||
void *opaque)
|
||||
{
|
||||
return rbd_start_aio(bs, offset, qiov, bytes, cb, opaque,
|
||||
RBD_AIO_WRITE);
|
||||
}
|
||||
/* zero pad short reads */
|
||||
if (cmd == RBD_AIO_READ && task.ret < qiov->size) {
|
||||
qemu_iovec_memset(qiov, task.ret, 0, qiov->size - task.ret);
|
||||
}
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_AIO_FLUSH
|
||||
static BlockAIOCB *qemu_rbd_aio_flush(BlockDriverState *bs,
|
||||
BlockCompletionFunc *cb,
|
||||
void *opaque)
|
||||
{
|
||||
return rbd_start_aio(bs, 0, NULL, 0, cb, opaque, RBD_AIO_FLUSH);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static int qemu_rbd_co_flush(BlockDriverState *bs)
|
||||
{
|
||||
#if LIBRBD_VERSION_CODE >= LIBRBD_VERSION(0, 1, 1)
|
||||
/* rbd_flush added in 0.1.1 */
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
return rbd_flush(s->image);
|
||||
#else
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
static int
|
||||
coroutine_fn qemu_rbd_co_preadv(BlockDriverState *bs, uint64_t offset,
|
||||
uint64_t bytes, QEMUIOVector *qiov,
|
||||
int flags)
|
||||
{
|
||||
return qemu_rbd_start_co(bs, offset, bytes, qiov, flags, RBD_AIO_READ);
|
||||
}
|
||||
|
||||
static int
|
||||
coroutine_fn qemu_rbd_co_pwritev(BlockDriverState *bs, uint64_t offset,
|
||||
uint64_t bytes, QEMUIOVector *qiov,
|
||||
int flags)
|
||||
{
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
/*
|
||||
* RBD APIs don't allow us to write more than actual size, so in order
|
||||
* to support growing images, we resize the image before write
|
||||
* operations that exceed the current size.
|
||||
*/
|
||||
if (offset + bytes > s->image_size) {
|
||||
int r = qemu_rbd_resize(bs, offset + bytes);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
}
|
||||
return qemu_rbd_start_co(bs, offset, bytes, qiov, flags, RBD_AIO_WRITE);
|
||||
}
|
||||
|
||||
static int coroutine_fn qemu_rbd_co_flush(BlockDriverState *bs)
|
||||
{
|
||||
return qemu_rbd_start_co(bs, 0, 0, NULL, 0, RBD_AIO_FLUSH);
|
||||
}
|
||||
|
||||
static int coroutine_fn qemu_rbd_co_pdiscard(BlockDriverState *bs,
|
||||
int64_t offset, int count)
|
||||
{
|
||||
return qemu_rbd_start_co(bs, offset, count, NULL, 0, RBD_AIO_DISCARD);
|
||||
}
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_WRITE_ZEROES
|
||||
static int
|
||||
coroutine_fn qemu_rbd_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
|
||||
int count, BdrvRequestFlags flags)
|
||||
{
|
||||
return qemu_rbd_start_co(bs, offset, count, NULL, flags,
|
||||
RBD_AIO_WRITE_ZEROES);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int qemu_rbd_getinfo(BlockDriverState *bs, BlockDriverInfo *bdi)
|
||||
{
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
rbd_image_info_t info;
|
||||
bdi->cluster_size = s->object_size;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ImageInfoSpecific *qemu_rbd_get_specific_info(BlockDriverState *bs,
|
||||
Error **errp)
|
||||
{
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
ImageInfoSpecific *spec_info;
|
||||
char buf[RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN] = {0};
|
||||
int r;
|
||||
|
||||
r = rbd_stat(s->image, &info, sizeof(info));
|
||||
if (r < 0) {
|
||||
return r;
|
||||
if (s->image_size >= RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN) {
|
||||
r = rbd_read(s->image, 0,
|
||||
RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN, buf);
|
||||
if (r < 0) {
|
||||
error_setg_errno(errp, -r, "cannot read image start for probe");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
bdi->cluster_size = info.obj_size;
|
||||
return 0;
|
||||
spec_info = g_new(ImageInfoSpecific, 1);
|
||||
*spec_info = (ImageInfoSpecific){
|
||||
.type = IMAGE_INFO_SPECIFIC_KIND_RBD,
|
||||
.u.rbd.data = g_new0(ImageInfoSpecificRbd, 1),
|
||||
};
|
||||
|
||||
if (memcmp(buf, rbd_luks_header_verification,
|
||||
RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN) == 0) {
|
||||
spec_info->u.rbd.data->encryption_format =
|
||||
RBD_IMAGE_ENCRYPTION_FORMAT_LUKS;
|
||||
spec_info->u.rbd.data->has_encryption_format = true;
|
||||
} else if (memcmp(buf, rbd_luks2_header_verification,
|
||||
RBD_ENCRYPTION_LUKS_HEADER_VERIFICATION_LEN) == 0) {
|
||||
spec_info->u.rbd.data->encryption_format =
|
||||
RBD_IMAGE_ENCRYPTION_FORMAT_LUKS2;
|
||||
spec_info->u.rbd.data->has_encryption_format = true;
|
||||
} else {
|
||||
spec_info->u.rbd.data->has_encryption_format = false;
|
||||
}
|
||||
|
||||
return spec_info;
|
||||
}
|
||||
|
||||
static int64_t qemu_rbd_getlength(BlockDriverState *bs)
|
||||
{
|
||||
BDRVRBDState *s = bs->opaque;
|
||||
rbd_image_info_t info;
|
||||
int r;
|
||||
|
||||
r = rbd_stat(s->image, &info, sizeof(info));
|
||||
r = rbd_get_size(s->image, &s->image_size);
|
||||
if (r < 0) {
|
||||
return r;
|
||||
}
|
||||
|
||||
return info.size;
|
||||
return s->image_size;
|
||||
}
|
||||
|
||||
static int coroutine_fn qemu_rbd_co_truncate(BlockDriverState *bs,
|
||||
@ -1210,19 +1408,6 @@ static int qemu_rbd_snap_list(BlockDriverState *bs,
|
||||
return snap_count;
|
||||
}
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_DISCARD
|
||||
static BlockAIOCB *qemu_rbd_aio_pdiscard(BlockDriverState *bs,
|
||||
int64_t offset,
|
||||
int bytes,
|
||||
BlockCompletionFunc *cb,
|
||||
void *opaque)
|
||||
{
|
||||
return rbd_start_aio(bs, offset, NULL, bytes, cb, opaque,
|
||||
RBD_AIO_DISCARD);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_INVALIDATE
|
||||
static void coroutine_fn qemu_rbd_co_invalidate_cache(BlockDriverState *bs,
|
||||
Error **errp)
|
||||
{
|
||||
@ -1232,7 +1417,6 @@ static void coroutine_fn qemu_rbd_co_invalidate_cache(BlockDriverState *bs,
|
||||
error_setg_errno(errp, -r, "Failed to invalidate the cache");
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
static QemuOptsList qemu_rbd_create_opts = {
|
||||
.name = "rbd-create-opts",
|
||||
@ -1253,6 +1437,22 @@ static QemuOptsList qemu_rbd_create_opts = {
|
||||
.type = QEMU_OPT_STRING,
|
||||
.help = "ID of secret providing the password",
|
||||
},
|
||||
{
|
||||
.name = "encrypt.format",
|
||||
.type = QEMU_OPT_STRING,
|
||||
.help = "Encrypt the image, format choices: 'luks', 'luks2'",
|
||||
},
|
||||
{
|
||||
.name = "encrypt.cipher-alg",
|
||||
.type = QEMU_OPT_STRING,
|
||||
.help = "Name of encryption cipher algorithm"
|
||||
" (allowed values: aes-128, aes-256)",
|
||||
},
|
||||
{
|
||||
.name = "encrypt.key-secret",
|
||||
.type = QEMU_OPT_STRING,
|
||||
.help = "ID of secret providing LUKS passphrase",
|
||||
},
|
||||
{ /* end of list */ }
|
||||
}
|
||||
};
|
||||
@ -1274,7 +1474,6 @@ static BlockDriver bdrv_rbd = {
|
||||
.format_name = "rbd",
|
||||
.instance_size = sizeof(BDRVRBDState),
|
||||
.bdrv_parse_filename = qemu_rbd_parse_filename,
|
||||
.bdrv_refresh_limits = qemu_rbd_refresh_limits,
|
||||
.bdrv_file_open = qemu_rbd_open,
|
||||
.bdrv_close = qemu_rbd_close,
|
||||
.bdrv_reopen_prepare = qemu_rbd_reopen_prepare,
|
||||
@ -1282,31 +1481,25 @@ static BlockDriver bdrv_rbd = {
|
||||
.bdrv_co_create_opts = qemu_rbd_co_create_opts,
|
||||
.bdrv_has_zero_init = bdrv_has_zero_init_1,
|
||||
.bdrv_get_info = qemu_rbd_getinfo,
|
||||
.bdrv_get_specific_info = qemu_rbd_get_specific_info,
|
||||
.create_opts = &qemu_rbd_create_opts,
|
||||
.bdrv_getlength = qemu_rbd_getlength,
|
||||
.bdrv_co_truncate = qemu_rbd_co_truncate,
|
||||
.protocol_name = "rbd",
|
||||
|
||||
.bdrv_aio_preadv = qemu_rbd_aio_preadv,
|
||||
.bdrv_aio_pwritev = qemu_rbd_aio_pwritev,
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_AIO_FLUSH
|
||||
.bdrv_aio_flush = qemu_rbd_aio_flush,
|
||||
#else
|
||||
.bdrv_co_preadv = qemu_rbd_co_preadv,
|
||||
.bdrv_co_pwritev = qemu_rbd_co_pwritev,
|
||||
.bdrv_co_flush_to_disk = qemu_rbd_co_flush,
|
||||
#endif
|
||||
|
||||
#ifdef LIBRBD_SUPPORTS_DISCARD
|
||||
.bdrv_aio_pdiscard = qemu_rbd_aio_pdiscard,
|
||||
.bdrv_co_pdiscard = qemu_rbd_co_pdiscard,
|
||||
#ifdef LIBRBD_SUPPORTS_WRITE_ZEROES
|
||||
.bdrv_co_pwrite_zeroes = qemu_rbd_co_pwrite_zeroes,
|
||||
#endif
|
||||
|
||||
.bdrv_snapshot_create = qemu_rbd_snap_create,
|
||||
.bdrv_snapshot_delete = qemu_rbd_snap_remove,
|
||||
.bdrv_snapshot_list = qemu_rbd_snap_list,
|
||||
.bdrv_snapshot_goto = qemu_rbd_snap_rollback,
|
||||
#ifdef LIBRBD_SUPPORTS_INVALIDATE
|
||||
.bdrv_co_invalidate_cache = qemu_rbd_co_invalidate_cache,
|
||||
#endif
|
||||
|
||||
.strong_runtime_opts = qemu_rbd_strong_runtime_opts,
|
||||
};
|
||||
|
||||
@ -390,7 +390,14 @@ static void reopen_backing_file(BlockDriverState *bs, bool writable,
|
||||
}
|
||||
|
||||
if (reopen_queue) {
|
||||
AioContext *ctx = bdrv_get_aio_context(bs);
|
||||
if (ctx != qemu_get_aio_context()) {
|
||||
aio_context_release(ctx);
|
||||
}
|
||||
bdrv_reopen_multiple(reopen_queue, errp);
|
||||
if (ctx != qemu_get_aio_context()) {
|
||||
aio_context_acquire(ctx);
|
||||
}
|
||||
}
|
||||
|
||||
bdrv_subtree_drained_end(s->hidden_disk->bs);
|
||||
|
||||
@ -237,9 +237,7 @@ static int parse_uri(const char *filename, QDict *options, Error **errp)
|
||||
return 0;
|
||||
|
||||
err:
|
||||
if (uri) {
|
||||
uri_free(uri);
|
||||
}
|
||||
uri_free(uri);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
||||
81
blockdev.c
81
blockdev.c
@ -1714,6 +1714,7 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
|
||||
aio_context = bdrv_get_aio_context(bs);
|
||||
aio_context_acquire(aio_context);
|
||||
|
||||
state->bs = bs;
|
||||
/* Paired with .clean() */
|
||||
bdrv_drained_begin(bs);
|
||||
|
||||
@ -1813,8 +1814,6 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
|
||||
}
|
||||
}
|
||||
|
||||
state->bs = bs;
|
||||
|
||||
state->job = do_backup_common(qapi_DriveBackup_base(backup),
|
||||
bs, target_bs, aio_context,
|
||||
common->block_job_txn, errp);
|
||||
@ -3560,46 +3559,60 @@ fail:
|
||||
visit_free(v);
|
||||
}
|
||||
|
||||
void qmp_x_blockdev_reopen(BlockdevOptions *options, Error **errp)
|
||||
void qmp_blockdev_reopen(BlockdevOptionsList *reopen_list, Error **errp)
|
||||
{
|
||||
BlockDriverState *bs;
|
||||
AioContext *ctx;
|
||||
QObject *obj;
|
||||
Visitor *v = qobject_output_visitor_new(&obj);
|
||||
BlockReopenQueue *queue;
|
||||
QDict *qdict;
|
||||
BlockReopenQueue *queue = NULL;
|
||||
GSList *drained = NULL;
|
||||
|
||||
/* Check for the selected node name */
|
||||
if (!options->has_node_name) {
|
||||
error_setg(errp, "node-name not specified");
|
||||
goto fail;
|
||||
/* Add each one of the BDS that we want to reopen to the queue */
|
||||
for (; reopen_list != NULL; reopen_list = reopen_list->next) {
|
||||
BlockdevOptions *options = reopen_list->value;
|
||||
BlockDriverState *bs;
|
||||
AioContext *ctx;
|
||||
QObject *obj;
|
||||
Visitor *v;
|
||||
QDict *qdict;
|
||||
|
||||
/* Check for the selected node name */
|
||||
if (!options->has_node_name) {
|
||||
error_setg(errp, "node-name not specified");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
bs = bdrv_find_node(options->node_name);
|
||||
if (!bs) {
|
||||
error_setg(errp, "Failed to find node with node-name='%s'",
|
||||
options->node_name);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Put all options in a QDict and flatten it */
|
||||
v = qobject_output_visitor_new(&obj);
|
||||
visit_type_BlockdevOptions(v, NULL, &options, &error_abort);
|
||||
visit_complete(v, &obj);
|
||||
visit_free(v);
|
||||
|
||||
qdict = qobject_to(QDict, obj);
|
||||
|
||||
qdict_flatten(qdict);
|
||||
|
||||
ctx = bdrv_get_aio_context(bs);
|
||||
aio_context_acquire(ctx);
|
||||
|
||||
bdrv_subtree_drained_begin(bs);
|
||||
queue = bdrv_reopen_queue(queue, bs, qdict, false);
|
||||
drained = g_slist_prepend(drained, bs);
|
||||
|
||||
aio_context_release(ctx);
|
||||
}
|
||||
|
||||
bs = bdrv_find_node(options->node_name);
|
||||
if (!bs) {
|
||||
error_setg(errp, "Failed to find node with node-name='%s'",
|
||||
options->node_name);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Put all options in a QDict and flatten it */
|
||||
visit_type_BlockdevOptions(v, NULL, &options, &error_abort);
|
||||
visit_complete(v, &obj);
|
||||
qdict = qobject_to(QDict, obj);
|
||||
|
||||
qdict_flatten(qdict);
|
||||
|
||||
/* Perform the reopen operation */
|
||||
ctx = bdrv_get_aio_context(bs);
|
||||
aio_context_acquire(ctx);
|
||||
bdrv_subtree_drained_begin(bs);
|
||||
queue = bdrv_reopen_queue(NULL, bs, qdict, false);
|
||||
bdrv_reopen_multiple(queue, errp);
|
||||
bdrv_subtree_drained_end(bs);
|
||||
aio_context_release(ctx);
|
||||
queue = NULL;
|
||||
|
||||
fail:
|
||||
visit_free(v);
|
||||
bdrv_reopen_queue_free(queue);
|
||||
g_slist_free_full(drained, (GDestroyNotify) bdrv_subtree_drained_end);
|
||||
}
|
||||
|
||||
void qmp_blockdev_del(const char *node_name, Error **errp)
|
||||
|
||||
@ -300,38 +300,6 @@ this CPU is also deprecated.
|
||||
Related binaries
|
||||
----------------
|
||||
|
||||
qemu-img amend to adjust backing file (since 5.1)
|
||||
'''''''''''''''''''''''''''''''''''''''''''''''''
|
||||
|
||||
The use of ``qemu-img amend`` to modify the name or format of a qcow2
|
||||
backing image is deprecated; this functionality was never fully
|
||||
documented or tested, and interferes with other amend operations that
|
||||
need access to the original backing image (such as deciding whether a
|
||||
v3 zero cluster may be left unallocated when converting to a v2
|
||||
image). Rather, any changes to the backing chain should be performed
|
||||
with ``qemu-img rebase -u`` either before or after the remaining
|
||||
changes being performed by amend, as appropriate.
|
||||
|
||||
qemu-img backing file without format (since 5.1)
|
||||
''''''''''''''''''''''''''''''''''''''''''''''''
|
||||
|
||||
The use of ``qemu-img create``, ``qemu-img rebase``, or ``qemu-img
|
||||
convert`` to create or modify an image that depends on a backing file
|
||||
now recommends that an explicit backing format be provided. This is
|
||||
for safety: if QEMU probes a different format than what you thought,
|
||||
the data presented to the guest will be corrupt; similarly, presenting
|
||||
a raw image to a guest allows a potential security exploit if a future
|
||||
probe sees a non-raw image based on guest writes.
|
||||
|
||||
To avoid the warning message, or even future refusal to create an
|
||||
unsafe image, you must pass ``-o backing_fmt=`` (or the shorthand
|
||||
``-F`` during create) to specify the intended backing format. You may
|
||||
use ``qemu-img rebase -u`` to retroactively add a backing format to an
|
||||
existing image. However, be aware that there are already potential
|
||||
security risks to blindly using ``qemu-img info`` to probe the format
|
||||
of an untrusted backing image, when deciding what format to add into
|
||||
an existing image.
|
||||
|
||||
Backwards compatibility
|
||||
-----------------------
|
||||
|
||||
|
||||
@ -491,6 +491,37 @@ topologies described with -smp include all possible cpus, i.e.
|
||||
The ``enforce-config-section`` property was replaced by the
|
||||
``-global migration.send-configuration={on|off}`` option.
|
||||
|
||||
qemu-img amend to adjust backing file (removed in 6.1)
|
||||
''''''''''''''''''''''''''''''''''''''''''''''''''''''
|
||||
|
||||
The use of ``qemu-img amend`` to modify the name or format of a qcow2
|
||||
backing image was never fully documented or tested, and interferes
|
||||
with other amend operations that need access to the original backing
|
||||
image (such as deciding whether a v3 zero cluster may be left
|
||||
unallocated when converting to a v2 image). Any changes to the
|
||||
backing chain should be performed with ``qemu-img rebase -u`` either
|
||||
before or after the remaining changes being performed by amend, as
|
||||
appropriate.
|
||||
|
||||
qemu-img backing file without format (removed in 6.1)
|
||||
'''''''''''''''''''''''''''''''''''''''''''''''''''''
|
||||
|
||||
The use of ``qemu-img create``, ``qemu-img rebase``, or ``qemu-img
|
||||
convert`` to create or modify an image that depends on a backing file
|
||||
now requires that an explicit backing format be provided. This is
|
||||
for safety: if QEMU probes a different format than what you thought,
|
||||
the data presented to the guest will be corrupt; similarly, presenting
|
||||
a raw image to a guest allows a potential security exploit if a future
|
||||
probe sees a non-raw image based on guest writes.
|
||||
|
||||
To avoid creating unsafe backing chains, you must pass ``-o
|
||||
backing_fmt=`` (or the shorthand ``-F`` during create) to specify the
|
||||
intended backing format. You may use ``qemu-img rebase -u`` to
|
||||
retroactively add a backing format to an existing image. However, be
|
||||
aware that there are already potential security risks to blindly using
|
||||
``qemu-img info`` to probe the format of an untrusted backing image,
|
||||
when deciding what format to add into an existing image.
|
||||
|
||||
Block devices
|
||||
-------------
|
||||
|
||||
|
||||
@ -1913,7 +1913,10 @@ static int vhost_user_backend_init(struct vhost_dev *dev, void *opaque,
|
||||
if (err < 0) {
|
||||
return -EPROTO;
|
||||
}
|
||||
} else {
|
||||
dev->max_queues = 1;
|
||||
}
|
||||
|
||||
if (dev->num_queues && dev->max_queues < dev->num_queues) {
|
||||
error_setg(errp, "The maximum number of queues supported by the "
|
||||
"backend is %" PRIu64, dev->max_queues);
|
||||
|
||||
@ -386,7 +386,10 @@ BlockDriverState *bdrv_new_open_driver(BlockDriver *drv, const char *node_name,
|
||||
BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
|
||||
BlockDriverState *bs, QDict *options,
|
||||
bool keep_old_opts);
|
||||
void bdrv_reopen_queue_free(BlockReopenQueue *bs_queue);
|
||||
int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp);
|
||||
int bdrv_reopen(BlockDriverState *bs, QDict *opts, bool keep_old_opts,
|
||||
Error **errp);
|
||||
int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only,
|
||||
Error **errp);
|
||||
int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
|
||||
|
||||
@ -710,13 +710,16 @@ if not get_option('rbd').auto() or have_block
|
||||
int main(void) {
|
||||
rados_t cluster;
|
||||
rados_create(&cluster, NULL);
|
||||
#if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 12, 0)
|
||||
#error
|
||||
#endif
|
||||
return 0;
|
||||
}''', dependencies: [librbd, librados])
|
||||
rbd = declare_dependency(dependencies: [librbd, librados])
|
||||
elif get_option('rbd').enabled()
|
||||
error('could not link librados')
|
||||
error('librbd >= 1.12.0 required')
|
||||
else
|
||||
warning('could not link librados, disabling')
|
||||
warning('librbd >= 1.12.0 not found, disabling')
|
||||
endif
|
||||
endif
|
||||
endif
|
||||
|
||||
@ -127,6 +127,18 @@
|
||||
'extents': ['ImageInfo']
|
||||
} }
|
||||
|
||||
##
|
||||
# @ImageInfoSpecificRbd:
|
||||
#
|
||||
# @encryption-format: Image encryption format
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'ImageInfoSpecificRbd',
|
||||
'data': {
|
||||
'*encryption-format': 'RbdImageEncryptionFormat'
|
||||
} }
|
||||
|
||||
##
|
||||
# @ImageInfoSpecific:
|
||||
#
|
||||
@ -141,7 +153,8 @@
|
||||
# If we need to add block driver specific parameters for
|
||||
# LUKS in future, then we'll subclass QCryptoBlockInfoLUKS
|
||||
# to define a ImageInfoSpecificLUKS
|
||||
'luks': 'QCryptoBlockInfoLUKS'
|
||||
'luks': 'QCryptoBlockInfoLUKS',
|
||||
'rbd': 'ImageInfoSpecificRbd'
|
||||
} }
|
||||
|
||||
##
|
||||
@ -3613,6 +3626,94 @@
|
||||
{ 'enum': 'RbdAuthMode',
|
||||
'data': [ 'cephx', 'none' ] }
|
||||
|
||||
##
|
||||
# @RbdImageEncryptionFormat:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'enum': 'RbdImageEncryptionFormat',
|
||||
'data': [ 'luks', 'luks2' ] }
|
||||
|
||||
##
|
||||
# @RbdEncryptionOptionsLUKSBase:
|
||||
#
|
||||
# @key-secret: ID of a QCryptoSecret object providing a passphrase
|
||||
# for unlocking the encryption
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionOptionsLUKSBase',
|
||||
'data': { 'key-secret': 'str' } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionCreateOptionsLUKSBase:
|
||||
#
|
||||
# @cipher-alg: The encryption algorithm
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionCreateOptionsLUKSBase',
|
||||
'base': 'RbdEncryptionOptionsLUKSBase',
|
||||
'data': { '*cipher-alg': 'QCryptoCipherAlgorithm' } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionOptionsLUKS:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionOptionsLUKS',
|
||||
'base': 'RbdEncryptionOptionsLUKSBase',
|
||||
'data': { } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionOptionsLUKS2:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionOptionsLUKS2',
|
||||
'base': 'RbdEncryptionOptionsLUKSBase',
|
||||
'data': { } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionCreateOptionsLUKS:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionCreateOptionsLUKS',
|
||||
'base': 'RbdEncryptionCreateOptionsLUKSBase',
|
||||
'data': { } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionCreateOptionsLUKS2:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'struct': 'RbdEncryptionCreateOptionsLUKS2',
|
||||
'base': 'RbdEncryptionCreateOptionsLUKSBase',
|
||||
'data': { } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionOptions:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'union': 'RbdEncryptionOptions',
|
||||
'base': { 'format': 'RbdImageEncryptionFormat' },
|
||||
'discriminator': 'format',
|
||||
'data': { 'luks': 'RbdEncryptionOptionsLUKS',
|
||||
'luks2': 'RbdEncryptionOptionsLUKS2' } }
|
||||
|
||||
##
|
||||
# @RbdEncryptionCreateOptions:
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'union': 'RbdEncryptionCreateOptions',
|
||||
'base': { 'format': 'RbdImageEncryptionFormat' },
|
||||
'discriminator': 'format',
|
||||
'data': { 'luks': 'RbdEncryptionCreateOptionsLUKS',
|
||||
'luks2': 'RbdEncryptionCreateOptionsLUKS2' } }
|
||||
|
||||
##
|
||||
# @BlockdevOptionsRbd:
|
||||
#
|
||||
@ -3628,6 +3729,8 @@
|
||||
#
|
||||
# @snapshot: Ceph snapshot name.
|
||||
#
|
||||
# @encrypt: Image encryption options. (Since 6.1)
|
||||
#
|
||||
# @user: Ceph id name.
|
||||
#
|
||||
# @auth-client-required: Acceptable authentication modes.
|
||||
@ -3650,6 +3753,7 @@
|
||||
'image': 'str',
|
||||
'*conf': 'str',
|
||||
'*snapshot': 'str',
|
||||
'*encrypt': 'RbdEncryptionOptions',
|
||||
'*user': 'str',
|
||||
'*auth-client-required': ['RbdAuthMode'],
|
||||
'*key-secret': 'str',
|
||||
@ -4115,15 +4219,17 @@
|
||||
{ 'command': 'blockdev-add', 'data': 'BlockdevOptions', 'boxed': true }
|
||||
|
||||
##
|
||||
# @x-blockdev-reopen:
|
||||
# @blockdev-reopen:
|
||||
#
|
||||
# Reopens a block device using the given set of options. Any option
|
||||
# not specified will be reset to its default value regardless of its
|
||||
# previous status. If an option cannot be changed or a particular
|
||||
# Reopens one or more block devices using the given set of options.
|
||||
# Any option not specified will be reset to its default value regardless
|
||||
# of its previous status. If an option cannot be changed or a particular
|
||||
# driver does not support reopening then the command will return an
|
||||
# error.
|
||||
# error. All devices in the list are reopened in one transaction, so
|
||||
# if one of them fails then the whole transaction is cancelled.
|
||||
#
|
||||
# The top-level @node-name option (from BlockdevOptions) must be
|
||||
# The command receives a list of block devices to reopen. For each one
|
||||
# of them, the top-level @node-name option (from BlockdevOptions) must be
|
||||
# specified and is used to select the block device to be reopened.
|
||||
# Other @node-name options must be either omitted or set to the
|
||||
# current name of the appropriate node. This command won't change any
|
||||
@ -4143,18 +4249,18 @@
|
||||
#
|
||||
# 4) NULL: the current child (if any) is detached.
|
||||
#
|
||||
# Options (1) and (2) are supported in all cases, but at the moment
|
||||
# only @backing allows replacing or detaching an existing child.
|
||||
# Options (1) and (2) are supported in all cases. Option (3) is
|
||||
# supported for @file and @backing, and option (4) for @backing only.
|
||||
#
|
||||
# Unlike with blockdev-add, the @backing option must always be present
|
||||
# unless the node being reopened does not have a backing file and its
|
||||
# image does not have a default backing file name as part of its
|
||||
# metadata.
|
||||
#
|
||||
# Since: 4.0
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'command': 'x-blockdev-reopen',
|
||||
'data': 'BlockdevOptions', 'boxed': true }
|
||||
{ 'command': 'blockdev-reopen',
|
||||
'data': { 'options': ['BlockdevOptions'] } }
|
||||
|
||||
##
|
||||
# @blockdev-del:
|
||||
@ -4403,13 +4509,15 @@
|
||||
# point to a snapshot.
|
||||
# @size: Size of the virtual disk in bytes
|
||||
# @cluster-size: RBD object size
|
||||
# @encrypt: Image encryption options. (Since 6.1)
|
||||
#
|
||||
# Since: 2.12
|
||||
##
|
||||
{ 'struct': 'BlockdevCreateOptionsRbd',
|
||||
'data': { 'location': 'BlockdevOptionsRbd',
|
||||
'size': 'size',
|
||||
'*cluster-size' : 'size' } }
|
||||
'*cluster-size' : 'size',
|
||||
'*encrypt' : 'RbdEncryptionCreateOptions' } }
|
||||
|
||||
##
|
||||
# @BlockdevVmdkSubformat:
|
||||
|
||||
@ -120,6 +120,23 @@
|
||||
'*logical-block-size': 'size',
|
||||
'*num-queues': 'uint16'} }
|
||||
|
||||
##
|
||||
# @FuseExportAllowOther:
|
||||
#
|
||||
# Possible allow_other modes for FUSE exports.
|
||||
#
|
||||
# @off: Do not pass allow_other as a mount option.
|
||||
#
|
||||
# @on: Pass allow_other as a mount option.
|
||||
#
|
||||
# @auto: Try mounting with allow_other first, and if that fails, retry
|
||||
# without allow_other.
|
||||
#
|
||||
# Since: 6.1
|
||||
##
|
||||
{ 'enum': 'FuseExportAllowOther',
|
||||
'data': ['off', 'on', 'auto'] }
|
||||
|
||||
##
|
||||
# @BlockExportOptionsFuse:
|
||||
#
|
||||
@ -132,11 +149,25 @@
|
||||
# @growable: Whether writes beyond the EOF should grow the block node
|
||||
# accordingly. (default: false)
|
||||
#
|
||||
# @allow-other: If this is off, only qemu's user is allowed access to
|
||||
# this export. That cannot be changed even with chmod or
|
||||
# chown.
|
||||
# Enabling this option will allow other users access to
|
||||
# the export with the FUSE mount option "allow_other".
|
||||
# Note that using allow_other as a non-root user requires
|
||||
# user_allow_other to be enabled in the global fuse.conf
|
||||
# configuration file.
|
||||
# In auto mode (the default), the FUSE export driver will
|
||||
# first attempt to mount the export with allow_other, and
|
||||
# if that fails, try again without.
|
||||
# (since 6.1; default: auto)
|
||||
#
|
||||
# Since: 6.0
|
||||
##
|
||||
{ 'struct': 'BlockExportOptionsFuse',
|
||||
'data': { 'mountpoint': 'str',
|
||||
'*growable': 'bool' },
|
||||
'*growable': 'bool',
|
||||
'*allow-other': 'FuseExportAllowOther' },
|
||||
'if': 'defined(CONFIG_FUSE)' }
|
||||
|
||||
##
|
||||
|
||||
@ -2508,8 +2508,10 @@ static int img_convert(int argc, char **argv)
|
||||
|
||||
if (out_baseimg_param) {
|
||||
if (!qemu_opt_get(opts, BLOCK_OPT_BACKING_FMT)) {
|
||||
warn_report("Deprecated use of backing file without explicit "
|
||||
"backing format");
|
||||
error_report("Use of backing file requires explicit "
|
||||
"backing format");
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
@ -3765,6 +3767,9 @@ static int img_rebase(int argc, char **argv)
|
||||
if (ret == -ENOSPC) {
|
||||
error_report("Could not change the backing file to '%s': No "
|
||||
"space left in the file header", out_baseimg);
|
||||
} else if (ret == -EINVAL && out_baseimg && !out_basefmt) {
|
||||
error_report("Could not change the backing file to '%s': backing "
|
||||
"format must be specified", out_baseimg);
|
||||
} else if (ret < 0) {
|
||||
error_report("Could not change the backing file to '%s': %s",
|
||||
out_baseimg, strerror(-ret));
|
||||
|
||||
@ -2116,8 +2116,6 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv)
|
||||
bool writethrough = !blk_enable_write_cache(blk);
|
||||
bool has_rw_option = false;
|
||||
bool has_cache_option = false;
|
||||
|
||||
BlockReopenQueue *brq;
|
||||
Error *local_err = NULL;
|
||||
|
||||
while ((c = getopt(argc, argv, "c:o:rw")) != -1) {
|
||||
@ -2210,10 +2208,7 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv)
|
||||
qdict_put_bool(opts, BDRV_OPT_CACHE_NO_FLUSH, flags & BDRV_O_NO_FLUSH);
|
||||
}
|
||||
|
||||
bdrv_subtree_drained_begin(bs);
|
||||
brq = bdrv_reopen_queue(NULL, bs, opts, true);
|
||||
bdrv_reopen_multiple(brq, &local_err);
|
||||
bdrv_subtree_drained_end(bs);
|
||||
bdrv_reopen(bs, opts, true, &local_err);
|
||||
|
||||
if (local_err) {
|
||||
error_report_err(local_err);
|
||||
|
||||
@ -920,8 +920,8 @@ class TestCommitWithOverriddenBacking(iotests.QMPTestCase):
|
||||
def setUp(self):
|
||||
qemu_img('create', '-f', iotests.imgfmt, self.img_base_a, '1M')
|
||||
qemu_img('create', '-f', iotests.imgfmt, self.img_base_b, '1M')
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', self.img_base_a, \
|
||||
self.img_top)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', self.img_base_a,
|
||||
'-F', iotests.imgfmt, self.img_top)
|
||||
|
||||
self.vm = iotests.VM()
|
||||
self.vm.launch()
|
||||
|
||||
@ -1295,8 +1295,10 @@ class TestReplaces(iotests.QMPTestCase):
|
||||
class TestFilters(iotests.QMPTestCase):
|
||||
def setUp(self):
|
||||
qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M')
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, test_img)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, target_img)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img,
|
||||
'-F', iotests.imgfmt, test_img)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img,
|
||||
'-F', iotests.imgfmt, target_img)
|
||||
|
||||
qemu_io('-c', 'write -P 1 0 512k', backing_img)
|
||||
qemu_io('-c', 'write -P 2 512k 512k', test_img)
|
||||
|
||||
@ -167,6 +167,9 @@ _make_test_img -o "compat=1.1" 64M
|
||||
TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 64M
|
||||
$QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG.base" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IMG amend -o "backing_file=$TEST_IMG.base,backing_fmt=qcow2" \
|
||||
"$TEST_IMG" && echo "unexpected pass"
|
||||
$QEMU_IMG rebase -u -b "$TEST_IMG.base" -F qcow2 "$TEST_IMG"
|
||||
$QEMU_IMG amend -o "backing_file=$TEST_IMG.base,backing_fmt=qcow2" "$TEST_IMG"
|
||||
$QEMU_IO -c "read -P 0x2a 0 128k" "$TEST_IMG" | _filter_qemu_io
|
||||
_check_test_img
|
||||
|
||||
@ -370,7 +370,8 @@ wrote 131072/131072 bytes at offset 0
|
||||
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
read 131072/131072 bytes at offset 0
|
||||
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-img: warning: Deprecated use of amend to alter the backing file; use qemu-img rebase instead
|
||||
qemu-img: Cannot amend the backing file
|
||||
You can use 'qemu-img rebase' instead.
|
||||
read 131072/131072 bytes at offset 0
|
||||
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
No errors were found on the image.
|
||||
|
||||
@ -808,12 +808,14 @@ Amend options for 'qcow2':
|
||||
size=<size> - Virtual disk size
|
||||
|
||||
Testing: amend -f qcow2 -o backing_file=TEST_DIR/t.qcow2,,help TEST_DIR/t.qcow2
|
||||
qemu-img: warning: Deprecated use of amend to alter the backing file; use qemu-img rebase instead
|
||||
qemu-img: Cannot amend the backing file
|
||||
You can use 'qemu-img rebase' instead.
|
||||
|
||||
Testing: rebase -u -b -f qcow2 TEST_DIR/t.qcow2
|
||||
|
||||
Testing: amend -f qcow2 -o backing_file=TEST_DIR/t.qcow2,,? TEST_DIR/t.qcow2
|
||||
qemu-img: warning: Deprecated use of amend to alter the backing file; use qemu-img rebase instead
|
||||
qemu-img: Cannot amend the backing file
|
||||
You can use 'qemu-img rebase' instead.
|
||||
|
||||
Testing: rebase -u -b -f qcow2 TEST_DIR/t.qcow2
|
||||
|
||||
|
||||
@ -44,16 +44,16 @@ _supported_os Linux
|
||||
# qcow2.py does not work too well with external data files
|
||||
_unsupported_imgopts data_file
|
||||
|
||||
# Intentionally specify backing file without backing format; demonstrate
|
||||
# the difference in warning messages when backing file could be probed.
|
||||
# Note that only a non-raw probe result will affect the resulting image.
|
||||
# Older qemu-img could set up backing file without backing format; modern
|
||||
# qemu can't but we can use qcow2.py to simulate older files.
|
||||
truncate -s $((64 * 1024 * 1024)) "$TEST_IMG.orig"
|
||||
_make_test_img -b "$TEST_IMG.orig" 64M
|
||||
_make_test_img -b "$TEST_IMG.orig" -F raw 64M
|
||||
$PYTHON qcow2.py "$TEST_IMG" del-header-ext 0xE2792ACA
|
||||
|
||||
TEST_IMG="$TEST_IMG.base" _make_test_img 64M
|
||||
$QEMU_IMG convert -O qcow2 -B "$TEST_IMG.orig" "$TEST_IMG.orig" "$TEST_IMG"
|
||||
_make_test_img -b "$TEST_IMG.base" 64M
|
||||
_make_test_img -u -b "$TEST_IMG.base" 64M
|
||||
_make_test_img -b "$TEST_IMG.base" -F $IMGFMT 64M
|
||||
_make_test_img -u -b "$TEST_IMG.base" -F $IMGFMT 64M
|
||||
|
||||
# Set an invalid backing file format
|
||||
$PYTHON qcow2.py "$TEST_IMG" add-header-ext 0xE2792ACA "foo"
|
||||
@ -64,9 +64,9 @@ _img_info
|
||||
$QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
$QEMU_IO -c "open -o backing.driver=$IMGFMT $TEST_IMG" -c "read 0 4k" | _filter_qemu_io
|
||||
|
||||
# Rebase the image, to show that omitting backing format triggers a warning,
|
||||
# but probing now lets us use the backing file.
|
||||
$QEMU_IMG rebase -u -b "$TEST_IMG.base" "$TEST_IMG"
|
||||
# Rebase the image, to show that backing format is required.
|
||||
($QEMU_IMG rebase -u -b "$TEST_IMG.base" "$TEST_IMG" 2>&1 && echo "unexpected pass") | _filter_testdir
|
||||
$QEMU_IMG rebase -u -b "$TEST_IMG.base" -F $IMGFMT "$TEST_IMG"
|
||||
$QEMU_IO -c "open $TEST_IMG" -c "read 0 4k" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# success, all done
|
||||
|
||||
@ -1,12 +1,9 @@
|
||||
QA output created by 114
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format (detected format of raw)
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.orig
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.orig backing_fmt=raw
|
||||
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format (detected format of IMGFMT)
|
||||
qemu-img: Use of backing file requires explicit backing format
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
|
||||
qemu-img: warning: Deprecated use of unopened backing file without explicit backing format, use of this image requires potentially unsafe format probing
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
|
||||
image: TEST_DIR/t.IMGFMT
|
||||
file format: IMGFMT
|
||||
virtual size: 64 MiB (67108864 bytes)
|
||||
@ -17,7 +14,7 @@ qemu-io: can't open device TEST_DIR/t.qcow2: Could not open backing file: Unknow
|
||||
no file open, try 'help open'
|
||||
read 4096/4096 bytes at offset 0
|
||||
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format, use of this image requires potentially unsafe format probing
|
||||
qemu-img: Could not change the backing file to 'TEST_DIR/t.qcow2.base': backing format must be specified
|
||||
read 4096/4096 bytes at offset 0
|
||||
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
*** done
|
||||
|
||||
@ -261,9 +261,12 @@ class TestBlockdevMirrorReopen(MirrorBaseClass):
|
||||
result = self.vm.qmp('blockdev-add', node_name="backing",
|
||||
driver="null-co")
|
||||
self.assert_qmp(result, 'return', {})
|
||||
result = self.vm.qmp('x-blockdev-reopen', node_name="target",
|
||||
driver=iotests.imgfmt, file="target-file",
|
||||
backing="backing")
|
||||
result = self.vm.qmp('blockdev-reopen', options=[{
|
||||
'node-name': "target",
|
||||
'driver': iotests.imgfmt,
|
||||
'file': "target-file",
|
||||
'backing': "backing"
|
||||
}])
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
class TestBlockdevMirrorReopenIothread(TestBlockdevMirrorReopen):
|
||||
|
||||
@ -137,7 +137,7 @@ class TestPersistentDirtyBitmap(iotests.QMPTestCase):
|
||||
assert sha256_1 == self.getSha256()
|
||||
|
||||
# Reopen to RW
|
||||
result = self.vm.qmp('x-blockdev-reopen', **{
|
||||
result = self.vm.qmp('blockdev-reopen', options=[{
|
||||
'node-name': 'node0',
|
||||
'driver': iotests.imgfmt,
|
||||
'file': {
|
||||
@ -145,7 +145,7 @@ class TestPersistentDirtyBitmap(iotests.QMPTestCase):
|
||||
'filename': disk
|
||||
},
|
||||
'read-only': False
|
||||
})
|
||||
}])
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
# Check that bitmap is reopened to RW and we can write to it.
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
#!/usr/bin/env python3
|
||||
# group: rw
|
||||
#
|
||||
# Test cases for the QMP 'x-blockdev-reopen' command
|
||||
# Test cases for the QMP 'blockdev-reopen' command
|
||||
#
|
||||
# Copyright (C) 2018-2019 Igalia, S.L.
|
||||
# Author: Alberto Garcia <berto@igalia.com>
|
||||
@ -85,8 +85,18 @@ class TestBlockdevReopen(iotests.QMPTestCase):
|
||||
"Expected output of %d qemu-io commands, found %d" %
|
||||
(found, self.total_io_cmds))
|
||||
|
||||
# Run x-blockdev-reopen with 'opts' but applying 'newopts'
|
||||
# on top of it. The original 'opts' dict is unmodified
|
||||
# Run blockdev-reopen on a list of block devices
|
||||
def reopenMultiple(self, opts, errmsg = None):
|
||||
result = self.vm.qmp('blockdev-reopen', conv_keys=False, options=opts)
|
||||
if errmsg:
|
||||
self.assert_qmp(result, 'error/class', 'GenericError')
|
||||
self.assert_qmp(result, 'error/desc', errmsg)
|
||||
else:
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
# Run blockdev-reopen on a single block device (specified by
|
||||
# 'opts') but applying 'newopts' on top of it. The original 'opts'
|
||||
# dict is unmodified
|
||||
def reopen(self, opts, newopts = {}, errmsg = None):
|
||||
opts = copy.deepcopy(opts)
|
||||
|
||||
@ -101,12 +111,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
|
||||
subdict = opts[prefix]
|
||||
subdict[key] = value
|
||||
|
||||
result = self.vm.qmp('x-blockdev-reopen', conv_keys = False, **opts)
|
||||
if errmsg:
|
||||
self.assert_qmp(result, 'error/class', 'GenericError')
|
||||
self.assert_qmp(result, 'error/desc', errmsg)
|
||||
else:
|
||||
self.assert_qmp(result, 'return', {})
|
||||
self.reopenMultiple([ opts ], errmsg)
|
||||
|
||||
|
||||
# Run query-named-block-nodes and return the specified entry
|
||||
@ -142,10 +147,10 @@ class TestBlockdevReopen(iotests.QMPTestCase):
|
||||
# We cannot change any of these
|
||||
self.reopen(opts, {'node-name': 'not-found'}, "Failed to find node with node-name='not-found'")
|
||||
self.reopen(opts, {'node-name': ''}, "Failed to find node with node-name=''")
|
||||
self.reopen(opts, {'node-name': None}, "Invalid parameter type for 'node-name', expected: string")
|
||||
self.reopen(opts, {'node-name': None}, "Invalid parameter type for 'options[0].node-name', expected: string")
|
||||
self.reopen(opts, {'driver': 'raw'}, "Cannot change the option 'driver'")
|
||||
self.reopen(opts, {'driver': ''}, "Invalid parameter ''")
|
||||
self.reopen(opts, {'driver': None}, "Invalid parameter type for 'driver', expected: string")
|
||||
self.reopen(opts, {'driver': None}, "Invalid parameter type for 'options[0].driver', expected: string")
|
||||
self.reopen(opts, {'file': 'not-found'}, "Cannot find device='' nor node-name='not-found'")
|
||||
self.reopen(opts, {'file': ''}, "Cannot find device='' nor node-name=''")
|
||||
self.reopen(opts, {'file': None}, "Invalid parameter type for 'file', expected: BlockdevRef")
|
||||
@ -154,9 +159,9 @@ class TestBlockdevReopen(iotests.QMPTestCase):
|
||||
self.reopen(opts, {'file.filename': hd_path[1]}, "Cannot change the option 'filename'")
|
||||
self.reopen(opts, {'file.aio': 'native'}, "Cannot change the option 'aio'")
|
||||
self.reopen(opts, {'file.locking': 'off'}, "Cannot change the option 'locking'")
|
||||
self.reopen(opts, {'file.filename': None}, "Invalid parameter type for 'file.filename', expected: string")
|
||||
self.reopen(opts, {'file.filename': None}, "Invalid parameter type for 'options[0].file.filename', expected: string")
|
||||
|
||||
# node-name is optional in BlockdevOptions, but x-blockdev-reopen needs it
|
||||
# node-name is optional in BlockdevOptions, but blockdev-reopen needs it
|
||||
del opts['node-name']
|
||||
self.reopen(opts, {}, "node-name not specified")
|
||||
|
||||
@ -644,6 +649,53 @@ class TestBlockdevReopen(iotests.QMPTestCase):
|
||||
'-c', 'read -P 0x40 0x40008 1',
|
||||
'-c', 'read -P 0x80 0x40010 1', hd_path[0])
|
||||
|
||||
# Swap the disk images of two active block devices
|
||||
def test_swap_files(self):
|
||||
# Add hd0 and hd2 (none of them with backing files)
|
||||
opts0 = hd_opts(0)
|
||||
result = self.vm.qmp('blockdev-add', conv_keys = False, **opts0)
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
opts2 = hd_opts(2)
|
||||
result = self.vm.qmp('blockdev-add', conv_keys = False, **opts2)
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
# Write different data to both block devices
|
||||
self.run_qemu_io("hd0", "write -P 0xa0 0 1k")
|
||||
self.run_qemu_io("hd2", "write -P 0xa2 0 1k")
|
||||
|
||||
# Check that the data reads correctly
|
||||
self.run_qemu_io("hd0", "read -P 0xa0 0 1k")
|
||||
self.run_qemu_io("hd2", "read -P 0xa2 0 1k")
|
||||
|
||||
# It's not possible to make a block device use an image that
|
||||
# is already being used by the other device.
|
||||
self.reopen(opts0, {'file': 'hd2-file'},
|
||||
"Permission conflict on node 'hd2-file': permissions "
|
||||
"'write, resize' are both required by node 'hd2' (uses "
|
||||
"node 'hd2-file' as 'file' child) and unshared by node "
|
||||
"'hd0' (uses node 'hd2-file' as 'file' child).")
|
||||
self.reopen(opts2, {'file': 'hd0-file'},
|
||||
"Permission conflict on node 'hd0-file': permissions "
|
||||
"'write, resize' are both required by node 'hd0' (uses "
|
||||
"node 'hd0-file' as 'file' child) and unshared by node "
|
||||
"'hd2' (uses node 'hd0-file' as 'file' child).")
|
||||
|
||||
# But we can swap the images if we reopen both devices at the
|
||||
# same time
|
||||
opts0['file'] = 'hd2-file'
|
||||
opts2['file'] = 'hd0-file'
|
||||
self.reopenMultiple([opts0, opts2])
|
||||
self.run_qemu_io("hd0", "read -P 0xa2 0 1k")
|
||||
self.run_qemu_io("hd2", "read -P 0xa0 0 1k")
|
||||
|
||||
# And we can of course come back to the original state
|
||||
opts0['file'] = 'hd0-file'
|
||||
opts2['file'] = 'hd2-file'
|
||||
self.reopenMultiple([opts0, opts2])
|
||||
self.run_qemu_io("hd0", "read -P 0xa0 0 1k")
|
||||
self.run_qemu_io("hd2", "read -P 0xa2 0 1k")
|
||||
|
||||
# Misc reopen tests with different block drivers
|
||||
@iotests.skip_if_unsupported(['quorum', 'throttle'])
|
||||
def test_misc_drivers(self):
|
||||
|
||||
@ -17,8 +17,8 @@ read 1/1 bytes at offset 262152
|
||||
read 1/1 bytes at offset 262160
|
||||
1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
|
||||
..............
|
||||
...............
|
||||
----------------------------------------------------------------------
|
||||
Ran 24 tests
|
||||
Ran 25 tests
|
||||
|
||||
OK
|
||||
|
||||
@ -62,8 +62,8 @@ vm.event_wait('JOB_STATUS_CHANGE', timeout=3.0,
|
||||
vm.get_qmp_events()
|
||||
|
||||
del blockdev_opts['file']['size']
|
||||
vm.qmp_log('x-blockdev-reopen', filters=[filter_qmp_testfiles],
|
||||
**blockdev_opts)
|
||||
vm.qmp_log('blockdev-reopen', filters=[filter_qmp_testfiles],
|
||||
options = [ blockdev_opts ])
|
||||
|
||||
vm.qmp_log('block-job-resume', device='drive0')
|
||||
vm.event_wait('JOB_STATUS_CHANGE', timeout=1.0,
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
{"return": {}}
|
||||
{"execute": "blockdev-mirror", "arguments": {"device": "drive0", "on-target-error": "enospc", "sync": "full", "target": "target"}}
|
||||
{"return": {}}
|
||||
{"execute": "x-blockdev-reopen", "arguments": {"driver": "qcow2", "file": {"driver": "raw", "file": {"driver": "file", "filename": "TEST_DIR/PID-target"}}, "node-name": "target"}}
|
||||
{"execute": "blockdev-reopen", "arguments": {"options": [{"driver": "qcow2", "file": {"driver": "raw", "file": {"driver": "file", "filename": "TEST_DIR/PID-target"}}, "node-name": "target"}]}}
|
||||
{"return": {}}
|
||||
{"execute": "block-job-resume", "arguments": {"device": "drive0"}}
|
||||
{"return": {}}
|
||||
|
||||
@ -118,10 +118,9 @@ class EncryptionSetupTestCase(iotests.QMPTestCase):
|
||||
def openImageQmp(self, vm, id, file, secret,
|
||||
readOnly = False, reOpen = False):
|
||||
|
||||
command = 'x-blockdev-reopen' if reOpen else 'blockdev-add'
|
||||
command = 'blockdev-reopen' if reOpen else 'blockdev-add'
|
||||
|
||||
result = vm.qmp(command, **
|
||||
{
|
||||
opts = {
|
||||
'driver': iotests.imgfmt,
|
||||
'node-name': id,
|
||||
'read-only': readOnly,
|
||||
@ -131,7 +130,11 @@ class EncryptionSetupTestCase(iotests.QMPTestCase):
|
||||
'filename': test_img,
|
||||
}
|
||||
}
|
||||
)
|
||||
|
||||
if reOpen:
|
||||
result = vm.qmp(command, options=[opts])
|
||||
else:
|
||||
result = vm.qmp(command, **opts)
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
|
||||
|
||||
@ -98,7 +98,7 @@ class TestPreallocateFilter(TestPreallocateBase):
|
||||
self.check_big()
|
||||
|
||||
def test_reopen_opts(self):
|
||||
result = self.vm.qmp('x-blockdev-reopen', **{
|
||||
result = self.vm.qmp('blockdev-reopen', options=[{
|
||||
'node-name': 'disk',
|
||||
'driver': iotests.imgfmt,
|
||||
'file': {
|
||||
@ -112,7 +112,7 @@ class TestPreallocateFilter(TestPreallocateBase):
|
||||
'filename': disk
|
||||
}
|
||||
}
|
||||
})
|
||||
}])
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
self.vm.hmp_qemu_io('drive0', 'write 0 1M')
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
#
|
||||
# Test qcow backing file warnings
|
||||
#
|
||||
# Copyright (C) 2020 Red Hat, Inc.
|
||||
# Copyright (C) 2020-2021 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
@ -46,7 +46,6 @@ echo "== qcow backed by qcow =="
|
||||
|
||||
TEST_IMG="$TEST_IMG.base" _make_test_img $size
|
||||
_make_test_img -b "$TEST_IMG.base" $size
|
||||
_img_info
|
||||
_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size
|
||||
_img_info
|
||||
|
||||
@ -71,7 +70,6 @@ echo "== qcow backed by raw =="
|
||||
rm "$TEST_IMG.base"
|
||||
truncate --size=$size "$TEST_IMG.base"
|
||||
_make_test_img -b "$TEST_IMG.base" $size
|
||||
_img_info
|
||||
_make_test_img -b "$TEST_IMG.base" -F raw $size
|
||||
_img_info
|
||||
|
||||
|
||||
@ -2,13 +2,7 @@ QA output created by 301
|
||||
|
||||
== qcow backed by qcow ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=33554432
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format (detected format of IMGFMT)
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
|
||||
image: TEST_DIR/t.IMGFMT
|
||||
file format: IMGFMT
|
||||
virtual size: 32 MiB (33554432 bytes)
|
||||
cluster_size: 512
|
||||
backing file: TEST_DIR/t.IMGFMT.base
|
||||
qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
|
||||
image: TEST_DIR/t.IMGFMT
|
||||
file format: IMGFMT
|
||||
@ -36,13 +30,7 @@ cluster_size: 512
|
||||
backing file: TEST_DIR/t.IMGFMT.base
|
||||
|
||||
== qcow backed by raw ==
|
||||
qemu-img: warning: Deprecated use of backing file without explicit backing format (detected format of raw)
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base
|
||||
image: TEST_DIR/t.IMGFMT
|
||||
file format: IMGFMT
|
||||
virtual size: 32 MiB (33554432 bytes)
|
||||
cluster_size: 512
|
||||
backing file: TEST_DIR/t.IMGFMT.base
|
||||
qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=raw
|
||||
image: TEST_DIR/t.IMGFMT
|
||||
file format: IMGFMT
|
||||
|
||||
@ -58,6 +58,9 @@ _supported_os Linux # We need /dev/urandom
|
||||
# $4: Node to export (defaults to 'node-format')
|
||||
fuse_export_add()
|
||||
{
|
||||
# The grep -v is a filter for errors when /etc/fuse.conf does not contain
|
||||
# user_allow_other. (The error is benign, but it is printed by fusermount
|
||||
# on the first mount attempt, so our export code cannot hide it.)
|
||||
_send_qemu_cmd $QEMU_HANDLE \
|
||||
"{'execute': 'block-export-add',
|
||||
'arguments': {
|
||||
@ -67,7 +70,8 @@ fuse_export_add()
|
||||
$2
|
||||
} }" \
|
||||
"${3:-return}" \
|
||||
| _filter_imgfmt
|
||||
| _filter_imgfmt \
|
||||
| grep -v 'option allow_other only allowed if'
|
||||
}
|
||||
|
||||
# $1: Export ID
|
||||
@ -166,6 +170,17 @@ fuse_export_add 'export-mp' "'mountpoint': '$EXT_MP'"
|
||||
# Check that the export presents the same data as the original image
|
||||
$QEMU_IMG compare -f raw -F $IMGFMT -U "$EXT_MP" "$TEST_IMG"
|
||||
|
||||
# Some quick chmod tests
|
||||
stat -c 'Permissions pre-chmod: %a' "$EXT_MP"
|
||||
|
||||
# Verify that we cannot set +w
|
||||
chmod u+w "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
stat -c 'Permissions post-+w: %a' "$EXT_MP"
|
||||
|
||||
# But that we can set, say, +x (if we are so inclined)
|
||||
chmod u+x "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
stat -c 'Permissions post-+x: %a' "$EXT_MP"
|
||||
|
||||
echo
|
||||
echo '=== Mount over existing file ==='
|
||||
|
||||
@ -215,7 +230,8 @@ echo '=== Writable export ==='
|
||||
fuse_export_add 'export-mp' "'mountpoint': '$EXT_MP', 'writable': true"
|
||||
|
||||
# Check that writing to the read-only export fails
|
||||
$QEMU_IO -f raw -c 'write -P 42 1M 64k' "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -f raw -c 'write -P 42 1M 64k' "$TEST_IMG" 2>&1 \
|
||||
| _filter_qemu_io | _filter_testdir | _filter_imgfmt
|
||||
|
||||
# But here it should work
|
||||
$QEMU_IO -f raw -c 'write -P 42 1M 64k' "$EXT_MP" | _filter_qemu_io
|
||||
|
||||
@ -50,6 +50,10 @@ wrote 67108864/67108864 bytes at offset 0
|
||||
} }
|
||||
{"return": {}}
|
||||
Images are identical.
|
||||
Permissions pre-chmod: 400
|
||||
chmod: changing permissions of 'TEST_DIR/t.IMGFMT.fuse': Read-only file system
|
||||
Permissions post-+w: 400
|
||||
Permissions post-+x: 500
|
||||
|
||||
=== Mount over existing file ===
|
||||
{'execute': 'block-export-add',
|
||||
@ -91,7 +95,7 @@ virtual size: 0 B (0 bytes)
|
||||
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
|
||||
} }
|
||||
{"return": {}}
|
||||
write failed: Permission denied
|
||||
qemu-io: can't open device TEST_DIR/t.IMGFMT: Could not open 'TEST_DIR/t.IMGFMT': Permission denied
|
||||
wrote 65536/65536 bytes at offset 1048576
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
wrote 65536/65536 bytes at offset 1048576
|
||||
|
||||
@ -512,9 +512,13 @@ _make_test_img()
|
||||
# Usually, users would export formatted nodes. But we present fuse as a
|
||||
# protocol-level driver here, so we have to leave the format to the
|
||||
# client.
|
||||
# Switch off allow-other, because in general we do not need it for
|
||||
# iotests. The default allow-other=auto has the downside of printing a
|
||||
# fusermount error on its first attempt if allow_other is not
|
||||
# permissible, which we would need to filter.
|
||||
QSD_NEED_PID=y $QSD \
|
||||
--blockdev file,node-name=export-node,filename=$img_name,discard=unmap \
|
||||
--export fuse,id=fuse-export,node-name=export-node,mountpoint="$export_mp",writable=on,growable=on \
|
||||
--export fuse,id=fuse-export,node-name=export-node,mountpoint="$export_mp",writable=on,growable=on,allow-other=off \
|
||||
&
|
||||
|
||||
pidfile="$QEMU_TEST_DIR/qemu-storage-daemon.pid"
|
||||
|
||||
168
tests/qemu-iotests/tests/fuse-allow-other
Executable file
168
tests/qemu-iotests/tests/fuse-allow-other
Executable file
@ -0,0 +1,168 @@
|
||||
#!/usr/bin/env bash
|
||||
# group: rw
|
||||
#
|
||||
# Test FUSE exports' allow-other option
|
||||
#
|
||||
# Copyright (C) 2021 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
|
||||
seq=$(basename "$0")
|
||||
echo "QA output created by $seq"
|
||||
|
||||
status=1 # failure is the default!
|
||||
|
||||
_cleanup()
|
||||
{
|
||||
_cleanup_qemu
|
||||
_cleanup_test_img
|
||||
rm -f "$EXT_MP"
|
||||
}
|
||||
trap "_cleanup; exit \$status" 0 1 2 3 15
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ../common.rc
|
||||
. ../common.filter
|
||||
. ../common.qemu
|
||||
|
||||
_supported_fmt generic
|
||||
|
||||
_supported_proto file # We create the FUSE export manually
|
||||
|
||||
sudo -n -u nobody true || \
|
||||
_notrun 'Password-less sudo as nobody required to test allow_other'
|
||||
|
||||
# $1: Export ID
|
||||
# $2: Options (beyond the node-name and ID)
|
||||
# $3: Expected return value (defaults to 'return')
|
||||
# $4: Node to export (defaults to 'node-format')
|
||||
fuse_export_add()
|
||||
{
|
||||
allow_other_not_supported='option allow_other only allowed if'
|
||||
|
||||
output=$(
|
||||
success_or_failure=yes _send_qemu_cmd $QEMU_HANDLE \
|
||||
"{'execute': 'block-export-add',
|
||||
'arguments': {
|
||||
'type': 'fuse',
|
||||
'id': '$1',
|
||||
'node-name': '${4:-node-format}',
|
||||
$2
|
||||
} }" \
|
||||
"${3:-return}" \
|
||||
"$allow_other_not_supported" \
|
||||
| _filter_imgfmt
|
||||
)
|
||||
|
||||
if echo "$output" | grep -q "$allow_other_not_supported"; then
|
||||
# Shut down qemu gracefully so it can unmount the export
|
||||
_send_qemu_cmd $QEMU_HANDLE \
|
||||
"{'execute': 'quit'}" \
|
||||
'return'
|
||||
|
||||
wait=yes _cleanup_qemu
|
||||
|
||||
_notrun "allow_other not supported"
|
||||
fi
|
||||
|
||||
echo "$output"
|
||||
}
|
||||
|
||||
EXT_MP="$TEST_DIR/fuse-export"
|
||||
|
||||
_make_test_img 64k
|
||||
touch "$EXT_MP"
|
||||
|
||||
echo
|
||||
echo '=== Test permissions ==='
|
||||
|
||||
# $1: allow-other value ('on'/'off'/'auto')
|
||||
run_permission_test()
|
||||
{
|
||||
_launch_qemu \
|
||||
-blockdev \
|
||||
"$IMGFMT,node-name=node-format,file.driver=file,file.filename=$TEST_IMG"
|
||||
|
||||
_send_qemu_cmd $QEMU_HANDLE \
|
||||
"{'execute': 'qmp_capabilities'}" \
|
||||
'return'
|
||||
|
||||
fuse_export_add 'export' \
|
||||
"'mountpoint': '$EXT_MP',
|
||||
'allow-other': '$1'"
|
||||
|
||||
# Should always work
|
||||
echo '(Removing all permissions)'
|
||||
chmod 000 "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
stat -c 'Permissions post-chmod: %a' "$EXT_MP"
|
||||
|
||||
# Should always work
|
||||
echo '(Granting u+r)'
|
||||
chmod u+r "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
stat -c 'Permissions post-chmod: %a' "$EXT_MP"
|
||||
|
||||
# Should only work with allow-other: Otherwise, no permissions can be
|
||||
# granted to the group or others
|
||||
echo '(Granting read permissions for everyone)'
|
||||
chmod 444 "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
stat -c 'Permissions post-chmod: %a' "$EXT_MP"
|
||||
|
||||
echo 'Doing operations as nobody:'
|
||||
# Change to TEST_DIR, so nobody will not have to attempt a lookup
|
||||
pushd "$TEST_DIR" >/dev/null
|
||||
|
||||
# This is already prevented by the permissions (without allow-other, FUSE
|
||||
# exports always have o-r), but test it anyway
|
||||
sudo -n -u nobody cat fuse-export >/dev/null
|
||||
|
||||
# If the only problem were the lack of permissions, we should still be able
|
||||
# to stat the export as nobody; it should not work without allow-other,
|
||||
# though
|
||||
sudo -n -u nobody \
|
||||
stat -c 'Permissions seen by nobody: %a' fuse-export 2>&1 \
|
||||
| _filter_imgfmt
|
||||
|
||||
# To prove the point, revoke read permissions for others and try again
|
||||
chmod o-r fuse-export 2>&1 | _filter_testdir | _filter_imgfmt
|
||||
|
||||
# Should fail
|
||||
sudo -n -u nobody cat fuse-export >/dev/null
|
||||
# Should work with allow_other
|
||||
sudo -n -u nobody \
|
||||
stat -c 'Permissions seen by nobody: %a' fuse-export 2>&1 \
|
||||
| _filter_imgfmt
|
||||
|
||||
popd >/dev/null
|
||||
|
||||
_send_qemu_cmd $QEMU_HANDLE \
|
||||
"{'execute': 'quit'}" \
|
||||
'return'
|
||||
|
||||
wait=yes _cleanup_qemu
|
||||
}
|
||||
|
||||
# 'auto' should behave exactly like 'on', because 'on' tests that
|
||||
# allow_other works (otherwise, this test is skipped)
|
||||
for ao in off on auto; do
|
||||
echo
|
||||
echo "--- allow-other=$ao ---"
|
||||
|
||||
run_permission_test "$ao"
|
||||
done
|
||||
|
||||
# success, all done
|
||||
echo "*** done"
|
||||
rm -f $seq.full
|
||||
status=0
|
||||
88
tests/qemu-iotests/tests/fuse-allow-other.out
Normal file
88
tests/qemu-iotests/tests/fuse-allow-other.out
Normal file
@ -0,0 +1,88 @@
|
||||
QA output created by fuse-allow-other
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=65536
|
||||
|
||||
=== Test permissions ===
|
||||
|
||||
--- allow-other=off ---
|
||||
{'execute': 'qmp_capabilities'}
|
||||
{"return": {}}
|
||||
{'execute': 'block-export-add',
|
||||
'arguments': {
|
||||
'type': 'fuse',
|
||||
'id': 'export',
|
||||
'node-name': 'node-format',
|
||||
'mountpoint': 'TEST_DIR/fuse-export',
|
||||
'allow-other': 'off'
|
||||
} }
|
||||
{"return": {}}
|
||||
(Removing all permissions)
|
||||
Permissions post-chmod: 0
|
||||
(Granting u+r)
|
||||
Permissions post-chmod: 400
|
||||
(Granting read permissions for everyone)
|
||||
chmod: changing permissions of 'TEST_DIR/fuse-export': Operation not permitted
|
||||
Permissions post-chmod: 400
|
||||
Doing operations as nobody:
|
||||
cat: fuse-export: Permission denied
|
||||
stat: cannot statx 'fuse-export': Permission denied
|
||||
cat: fuse-export: Permission denied
|
||||
stat: cannot statx 'fuse-export': Permission denied
|
||||
{'execute': 'quit'}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export"}}
|
||||
|
||||
--- allow-other=on ---
|
||||
{'execute': 'qmp_capabilities'}
|
||||
{"return": {}}
|
||||
{'execute': 'block-export-add',
|
||||
'arguments': {
|
||||
'type': 'fuse',
|
||||
'id': 'export',
|
||||
'node-name': 'node-format',
|
||||
'mountpoint': 'TEST_DIR/fuse-export',
|
||||
'allow-other': 'on'
|
||||
} }
|
||||
{"return": {}}
|
||||
(Removing all permissions)
|
||||
Permissions post-chmod: 0
|
||||
(Granting u+r)
|
||||
Permissions post-chmod: 400
|
||||
(Granting read permissions for everyone)
|
||||
Permissions post-chmod: 444
|
||||
Doing operations as nobody:
|
||||
Permissions seen by nobody: 444
|
||||
cat: fuse-export: Permission denied
|
||||
Permissions seen by nobody: 440
|
||||
{'execute': 'quit'}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export"}}
|
||||
|
||||
--- allow-other=auto ---
|
||||
{'execute': 'qmp_capabilities'}
|
||||
{"return": {}}
|
||||
{'execute': 'block-export-add',
|
||||
'arguments': {
|
||||
'type': 'fuse',
|
||||
'id': 'export',
|
||||
'node-name': 'node-format',
|
||||
'mountpoint': 'TEST_DIR/fuse-export',
|
||||
'allow-other': 'auto'
|
||||
} }
|
||||
{"return": {}}
|
||||
(Removing all permissions)
|
||||
Permissions post-chmod: 0
|
||||
(Granting u+r)
|
||||
Permissions post-chmod: 400
|
||||
(Granting read permissions for everyone)
|
||||
Permissions post-chmod: 444
|
||||
Doing operations as nobody:
|
||||
Permissions seen by nobody: 444
|
||||
cat: fuse-export: Permission denied
|
||||
Permissions seen by nobody: 440
|
||||
{'execute': 'quit'}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export"}}
|
||||
*** done
|
||||
@ -41,25 +41,27 @@ log('Trying to remove persistent bitmap from r-o base node, should fail:')
|
||||
vm.qmp_log('block-dirty-bitmap-remove', node='base', name='bitmap0')
|
||||
|
||||
new_base_opts = {
|
||||
'node-name': 'base',
|
||||
'driver': 'qcow2',
|
||||
'file': {
|
||||
'driver': 'file',
|
||||
'filename': base
|
||||
},
|
||||
'read-only': False
|
||||
'options': [{
|
||||
'node-name': 'base',
|
||||
'driver': 'qcow2',
|
||||
'file': {
|
||||
'driver': 'file',
|
||||
'filename': base
|
||||
},
|
||||
'read-only': False
|
||||
}]
|
||||
}
|
||||
|
||||
# Don't want to bother with filtering qmp_log for reopen command
|
||||
result = vm.qmp('x-blockdev-reopen', **new_base_opts)
|
||||
result = vm.qmp('blockdev-reopen', **new_base_opts)
|
||||
if result != {'return': {}}:
|
||||
log('Failed to reopen: ' + str(result))
|
||||
|
||||
log('Remove persistent bitmap from base node reopened to RW:')
|
||||
vm.qmp_log('block-dirty-bitmap-remove', node='base', name='bitmap0')
|
||||
|
||||
new_base_opts['read-only'] = True
|
||||
result = vm.qmp('x-blockdev-reopen', **new_base_opts)
|
||||
new_base_opts['options'][0]['read-only'] = True
|
||||
result = vm.qmp('blockdev-reopen', **new_base_opts)
|
||||
if result != {'return': {}}:
|
||||
log('Failed to reopen: ' + str(result))
|
||||
|
||||
|
||||
22
util/uri.c
22
util/uri.c
@ -1340,7 +1340,7 @@ static void uri_clean(URI *uri)
|
||||
|
||||
/**
|
||||
* uri_free:
|
||||
* @uri: pointer to an URI
|
||||
* @uri: pointer to an URI, NULL is ignored
|
||||
*
|
||||
* Free up the URI struct
|
||||
*/
|
||||
@ -1939,15 +1939,9 @@ step_7:
|
||||
val = uri_to_string(res);
|
||||
|
||||
done:
|
||||
if (ref != NULL) {
|
||||
uri_free(ref);
|
||||
}
|
||||
if (bas != NULL) {
|
||||
uri_free(bas);
|
||||
}
|
||||
if (res != NULL) {
|
||||
uri_free(res);
|
||||
}
|
||||
uri_free(ref);
|
||||
uri_free(bas);
|
||||
uri_free(res);
|
||||
return val;
|
||||
}
|
||||
|
||||
@ -2190,12 +2184,8 @@ done:
|
||||
if (remove_path != 0) {
|
||||
ref->path = NULL;
|
||||
}
|
||||
if (ref != NULL) {
|
||||
uri_free(ref);
|
||||
}
|
||||
if (bas != NULL) {
|
||||
uri_free(bas);
|
||||
}
|
||||
uri_free(ref);
|
||||
uri_free(bas);
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user