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qemu: split qemuDomainSecretStorageSourcePrepare

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This prepares encryption secrets and authentication secrets. When we add
nbdkit-backed network storage sources, we will not need to send
authentication secrets to qemu, since they will be sent to nbdkit
instead. So split this into two different functions.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Jonathon Jongsma 2022-07-05 16:24:55 -05:00
parent b5b1e5a947
commit d20a6eda44
1 changed files with 62 additions and 41 deletions
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97
src/qemu/qemu_domain.c
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@ -1398,38 +1398,70 @@ qemuDomainSecretStorageSourcePrepareCookies(qemuDomainObjPrivate *priv,
/**
* qemuDomainSecretStorageSourcePrepare:
* qemuDomainSecretStorageSourcePrepareEncryption:
* @priv: domain private object
* @src: storage source struct to setup
* @authalias: prefix of the alias for secret holding authentication data
* @encalias: prefix of the alias for secret holding encryption password
* @alias: prefix of the alias for secret holding encryption password
*
* Prepares data necessary for encryption and authentication of @src. The two
* alias prefixes are provided since in the backing chain authentication belongs
* to the storage protocol data whereas encryption is relevant to the format
* driver in qemu. The two will have different node names.
* Prepares data necessary for encryption of @src.
*
* Returns 0 on success; -1 on error while reporting an libvirt error.
*/
static int
qemuDomainSecretStorageSourcePrepare(qemuDomainObjPrivate *priv,
qemuDomainSecretStorageSourcePrepareEncryption(qemuDomainObjPrivate *priv,
virStorageSource *src,
const char *aliasprotocol,
const char *aliasformat)
const char *alias)
{
qemuDomainStorageSourcePrivate *srcPriv;
bool hasEnc = src->encryption && src->encryption->nsecrets > 0;
size_t nsecrets = 0;
size_t i;
if (!(src->encryption && src->encryption->nsecrets > 0))
return 0;
if (virStorageSourceIsEmpty(src))
return 0;
if (!src->auth && !hasEnc && src->ncookies == 0)
nsecrets = src->encryption->nsecrets;
srcPriv = qemuDomainStorageSourcePrivateFetch(src);
srcPriv->enccount = nsecrets;
srcPriv->encinfo = g_new0(qemuDomainSecretInfo *, nsecrets);
for (i = 0; i < nsecrets; ++i) {
if (!(srcPriv->encinfo[i] = qemuDomainSecretInfoSetupFromSecret(priv, alias,
"encryption", i,
VIR_SECRET_USAGE_TYPE_VOLUME,
NULL,
&src->encryption->secrets[i]->seclookupdef)))
return -1;
}
return 0;
}
/**
* qemuDomainSecretStorageSourcePrepareAuth:
* @priv: domain private object
* @src: storage source struct to setup
* @alias: prefix of the alias for secret holding authentication data
*
* Prepares data necessary for authentication of @src.
*
* Returns 0 on success; -1 on error while reporting an libvirt error.
*/
static int
qemuDomainSecretStorageSourcePrepareAuth(qemuDomainObjPrivate *priv,
virStorageSource *src,
const char *alias)
{
qemuDomainStorageSourcePrivate *srcPriv;
if (virStorageSourceIsEmpty(src))
return 0;
if (!(src->privateData = qemuDomainStorageSourcePrivateNew()))
return -1;
srcPriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src);
srcPriv = qemuDomainStorageSourcePrivateFetch(src);
if (src->auth) {
virSecretUsageType usageType = VIR_SECRET_USAGE_TYPE_ISCSI;
@ -1437,7 +1469,7 @@ qemuDomainSecretStorageSourcePrepare(qemuDomainObjPrivate *priv,
if (src->protocol == VIR_STORAGE_NET_PROTOCOL_RBD)
usageType = VIR_SECRET_USAGE_TYPE_CEPH;
if (!(srcPriv->secinfo = qemuDomainSecretInfoSetupFromSecret(priv, aliasprotocol,
if (!(srcPriv->secinfo = qemuDomainSecretInfoSetupFromSecret(priv, alias,
"auth", 0,
usageType,
src->auth->username,
@ -1445,26 +1477,10 @@ qemuDomainSecretStorageSourcePrepare(qemuDomainObjPrivate *priv,
return -1;
}
if (hasEnc) {
size_t nsecrets = src->encryption->nsecrets;
size_t i;
srcPriv->enccount = nsecrets;
srcPriv->encinfo = g_new0(qemuDomainSecretInfo *, nsecrets);
for (i = 0; i < nsecrets; ++i) {
if (!(srcPriv->encinfo[i] = qemuDomainSecretInfoSetupFromSecret(priv, aliasformat,
"encryption", i,
VIR_SECRET_USAGE_TYPE_VOLUME,
NULL,
&src->encryption->secrets[i]->seclookupdef)))
return -1;
}
}
if (src->ncookies &&
!(srcPriv->httpcookie = qemuDomainSecretStorageSourcePrepareCookies(priv,
src,
aliasprotocol)))
alias)))
return -1;
return 0;
@ -10988,8 +11004,11 @@ qemuDomainPrepareDiskSourceLegacy(virDomainDiskDef *disk,
qemuDomainPrepareStorageSourceConfig(disk->src, cfg);
qemuDomainPrepareDiskSourceData(disk, disk->src);
if (qemuDomainSecretStorageSourcePrepare(priv, disk->src,
disk->info.alias,
if (qemuDomainSecretStorageSourcePrepareEncryption(priv, disk->src,
disk->info.alias) < 0)
return -1;
if (qemuDomainSecretStorageSourcePrepareAuth(priv, disk->src,
disk->info.alias) < 0)
return -1;
@ -11081,10 +11100,12 @@ qemuDomainPrepareStorageSourceBlockdevNodename(virDomainDiskDef *disk,
qemuDomainPrepareStorageSourceConfig(src, cfg);
qemuDomainPrepareDiskSourceData(disk, src);
if (qemuDomainSecretStorageSourcePrepare(priv, src,
src->nodestorage,
if (qemuDomainSecretStorageSourcePrepareEncryption(priv, src,
src->nodeformat) < 0)
return -1;
if (qemuDomainSecretStorageSourcePrepareAuth(priv, src,
src->nodestorage) < 0)
return -1;
if (qemuDomainPrepareStorageSourcePR(src, priv, src->nodestorage) < 0)
return -1;