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qemu: domain: Add support for TLS for NBD

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1544869

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2018-05-29 13:57:17 +02:00
parent ca108ab789
commit 8ac9db0e54
8 changed files with 78 additions and 5 deletions
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8
docs/formatdomain.html.in
View File

@ -2786,7 +2786,13 @@
is mandatory to specify which volume/image will be used.
</p>
<p>For "nbd", the <code>name</code> attribute is optional.
<p>For "nbd", the <code>name</code> attribute is optional. TLS
transport for NBD can be enabled by setting the <code>tls</code>
attribute to <code>yes</code>. For the QEMU hypervisor, usage of
a TLS environment can also be globally controlled on the host by
the <code>nbd_tls</code> and <code>nbd_tls_x509_cert_dir</code> in
/etc/libvirt/qemu.conf.
('tls' <span class="since">Since 4.5.0</span>)
</p>
<p>For "iscsi" (<span class="since">since 1.0.4</span>), the

5
docs/schemas/domaincommon.rng
View File

@ -1706,6 +1706,11 @@
<optional>
<attribute name="name"/>
</optional>
<optional>
<attribute name="tls">
<ref name="virYesNo"/>
</attribute>
</optional>
<ref name="diskSourceNetworkHost"/>
<optional>
<ref name="encryption"/>

5
src/qemu/qemu_command.c
View File

@ -1388,6 +1388,11 @@ qemuDiskSourceNeedsProps(virStorageSourcePtr src,
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ISCSI_PASSWORD_SECRET))
return true;
if (actualType == VIR_STORAGE_TYPE_NETWORK &&
src->protocol == VIR_STORAGE_NET_PROTOCOL_NBD &&
src->haveTLS == VIR_TRISTATE_BOOL_YES)
return true;
return false;
}

38
src/qemu/qemu_domain.c
View File

@ -9962,6 +9962,34 @@ qemuProcessPrepareStorageSourceTLSVxhs(virStorageSourcePtr src,
}
static int
qemuProcessPrepareStorageSourceTLSNBD(virStorageSourcePtr src,
virQEMUDriverConfigPtr cfg,
virQEMUCapsPtr qemuCaps)
{
if (src->haveTLS == VIR_TRISTATE_BOOL_ABSENT) {
if (cfg->nbdTLS)
src->haveTLS = VIR_TRISTATE_BOOL_YES;
else
src->haveTLS = VIR_TRISTATE_BOOL_NO;
src->tlsFromConfig = true;
}
if (src->haveTLS == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NBD_TLS)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu does not support TLS transport for NBD"));
return -1;
}
if (VIR_STRDUP(src->tlsCertdir, cfg->nbdTLSx509certdir) < 0)
return -1;
}
return 0;
}
/* qemuProcessPrepareStorageSourceTLS:
* @source: source for a disk
* @cfg: driver configuration
@ -9976,7 +10004,8 @@ qemuProcessPrepareStorageSourceTLSVxhs(virStorageSourcePtr src,
static int
qemuDomainPrepareStorageSourceTLS(virStorageSourcePtr src,
virQEMUDriverConfigPtr cfg,
const char *parentAlias)
const char *parentAlias,
virQEMUCapsPtr qemuCaps)
{
if (virStorageSourceGetActualType(src) != VIR_STORAGE_TYPE_NETWORK)
return 0;
@ -9988,6 +10017,10 @@ qemuDomainPrepareStorageSourceTLS(virStorageSourcePtr src,
break;
case VIR_STORAGE_NET_PROTOCOL_NBD:
if (qemuProcessPrepareStorageSourceTLSNBD(src, cfg, qemuCaps) < 0)
return -1;
break;
case VIR_STORAGE_NET_PROTOCOL_RBD:
case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
@ -12530,7 +12563,8 @@ qemuDomainPrepareDiskSourceLegacy(virDomainDiskDefPtr disk,
if (qemuDomainPrepareStorageSourcePR(disk->src, priv, disk->info.alias) < 0)
return -1;
if (qemuDomainPrepareStorageSourceTLS(disk->src, cfg, disk->info.alias) < 0)
if (qemuDomainPrepareStorageSourceTLS(disk->src, cfg, disk->info.alias,
priv->qemuCaps) < 0)
return -1;
return 0;

9
tests/qemuxml2argvdata/disk-drive-network-tlsx509.args
View File

@ -43,4 +43,11 @@ id=virtio-disk1 \
file.server.host=192.168.0.3,file.server.port=9999,format=raw,if=none,\
id=drive-virtio-disk2,serial=eb90327c-8302-4725-9e1b-4e85ed4dc252,cache=none \
-device virtio-blk-pci,bus=pci.0,addr=0x6,drive=drive-virtio-disk2,\
id=virtio-disk2
id=virtio-disk2 \
-object tls-creds-x509,id=objvirtio-disk3_tls0,dir=/etc/pki/qemu,\
endpoint=client,verify-peer=yes \
-drive file.driver=nbd,file.server.type=inet,file.server.host=example.com,\
file.server.port=1234,file.tls-creds=objvirtio-disk3_tls0,format=raw,if=none,\
id=drive-virtio-disk3,cache=none \
-device virtio-blk-pci,bus=pci.0,addr=0x7,drive=drive-virtio-disk3,\
id=virtio-disk3

8
tests/qemuxml2argvdata/disk-drive-network-tlsx509.xml
View File

@ -41,6 +41,14 @@
<serial>eb90327c-8302-4725-9e1b-4e85ed4dc252</serial>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source protocol='nbd' tls='yes'>
<host name='example.com' port='1234'/>
</source>
<target dev='vdd' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<controller type='usb' index='0'/>
<controller type='pci' index='0' model='pci-root'/>
<input type='mouse' bus='ps2'/>

2
tests/qemuxml2argvtest.c
View File

@ -1052,7 +1052,7 @@ mymain(void)
DO_TEST("disk-drive-network-vxhs", QEMU_CAPS_VXHS);
driver.config->vxhsTLS = 1;
DO_TEST("disk-drive-network-tlsx509", QEMU_CAPS_VXHS,
QEMU_CAPS_OBJECT_TLS_CREDS_X509);
QEMU_CAPS_OBJECT_TLS_CREDS_X509, QEMU_CAPS_NBD_TLS);
driver.config->vxhsTLS = 0;
VIR_FREE(driver.config->vxhsTLSx509certdir);
DO_TEST("disk-drive-no-boot",

8
tests/qemuxml2xmloutdata/disk-drive-network-tlsx509.xml
View File

@ -41,6 +41,14 @@
<serial>eb90327c-8302-4725-9e1b-4e85ed4dc252</serial>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source protocol='nbd' tls='yes'>
<host name='example.com' port='1234'/>
</source>
<target dev='vdd' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>