These are supported by nbd-server and by the NBD server that QEMU
embeds for live image access.
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
docs/formatdomain.html.in | 6 ++--
src/qemu/qemu_command.c | 17 +++++++++++
tests/qemuargv2xmltest.c | 1 +
...qemuxml2argv-disk-drive-network-nbd-export.args | 5 ++++
.../qemuxml2argv-disk-drive-network-nbd-export.xml | 33 ++++++++++++++++++++++
tests/qemuxml2argvtest.c | 2 ++
tests/qemuxml2xmltest.c | 1 +
7 files changed, 62 insertions(+), 3 deletions(-)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.args
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index a9003d7..90cfc03 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1441,9 +1441,9 @@
are "nbd", "rbd", "sheepdog" or "gluster". If the
<code>protocol</code> attribute is "rbd", "sheepdog" or "gluster", an
additional attribute <code>name</code> is mandatory to specify which
- volume/image will be used. When the disk <code>type</code> is
- "network", the <code>source</code> may have zero or
- more <code>host</code> sub-elements used to specify the hosts
+ volume/image will be used; for "nbd" it is optional. When the disk
+ <code>type</code> is "network", the <code>source</code> may have zero
+ or more <code>host</code> sub-elements used to specify the hosts
to connect.
<span class="since">Since 0.0.3; <code>type='dir'</code> since
0.7.5; <code>type='network'</code> since 0.8.7</span><br/>
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index beb7cfe..4762f0a 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -2132,6 +2132,7 @@ qemuParseNBDString(virDomainDiskDefPtr disk)
{
virDomainDiskHostDefPtr h = NULL;
char *host, *port;
+ char *src;
if (VIR_ALLOC(h) < 0)
goto no_memory;
@@ -2149,11 +2150,24 @@ qemuParseNBDString(virDomainDiskDefPtr disk)
if (!h->name)
goto no_memory;
+ src = strchr(port, ':');
+ if (src)
+ *src++ = '\0';
+
h->port = strdup(port);
if (!h->port)
goto no_memory;
+ if (src && STRPREFIX(src, "exportname=")) {
+ src = strdup(strchr(src, '=') + 1);
+ if (!src)
+ goto no_memory;
+ } else {
+ src = NULL;
+ }
+
VIR_FREE(disk->src);
+ disk->src = src;
disk->nhosts = 1;
disk->hosts = h;
return 0;
@@ -2254,6 +2268,9 @@ qemuBuildNBDString(virDomainDiskDefPtr disk, virBufferPtr opt)
break;
}
+ if (disk->src)
+ virBufferEscape(opt, ',', ",", ":exportname=%s", disk->src);
+
return 0;
}
diff --git a/tests/qemuargv2xmltest.c b/tests/qemuargv2xmltest.c
index 3c23010..1731022 100644
--- a/tests/qemuargv2xmltest.c
+++ b/tests/qemuargv2xmltest.c
@@ -182,6 +182,7 @@ mymain(void)
DO_TEST("disk-drive-cache-directsync");
DO_TEST("disk-drive-cache-unsafe");
DO_TEST("disk-drive-network-nbd");
+ DO_TEST("disk-drive-network-nbd-export");
DO_TEST("disk-drive-network-gluster");
DO_TEST("disk-drive-network-rbd");
DO_TEST("disk-drive-network-rbd-ipv6");
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.args
new file mode 100644
index 0000000..bf411ff
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.args
@@ -0,0 +1,5 @@
+LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \
+pc -m 214 -smp 1 -nographic -monitor unix:/tmp/test-monitor,server,nowait \
+-no-acpi -boot c -usb -drive file=/dev/HostVG/QEMUGuest1,if=ide,bus=0,unit=0 -drive \
+file=nbd:example.org:6000:exportname=bar,if=virtio,format=raw -net none -serial none \
+-parallel none
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.xml
new file mode 100644
index 0000000..f2b5ca4
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219136</memory>
+ <currentMemory unit='KiB'>219136</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <disk type='network' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source protocol='nbd' name='bar'>
+ <host name='example.org' port='6000'/>
+ </source>
+ <target dev='vda' bus='virtio'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 4357068..7d44be2 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -485,6 +485,8 @@ mymain(void)
QEMU_CAPS_DRIVE_CACHE_UNSAFE, QEMU_CAPS_DRIVE_FORMAT);
DO_TEST("disk-drive-network-nbd",
QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
+ DO_TEST("disk-drive-network-nbd-export",
+ QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
DO_TEST("disk-drive-network-gluster",
QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
DO_TEST("disk-drive-network-rbd",
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 2fa93a9..cdf6554 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -167,6 +167,7 @@ mymain(void)
DO_TEST("disk-drive-cache-v1-wb");
DO_TEST("disk-drive-cache-v1-none");
DO_TEST("disk-drive-network-nbd");
+ DO_TEST("disk-drive-network-nbd-export");
DO_TEST("disk-scsi-device");
DO_TEST("disk-scsi-vscsi");
DO_TEST("disk-scsi-virtio-scsi");
--
1.8.1.2
--
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