[libvirt] [PATCH v3 17/21] LXC from native: map vlan network type
Cédric Bosdonnat
cbosdonnat at suse.com
Wed Feb 5 14:10:15 UTC 2014
The problem with VLAN is that the user still has to manually create the
vlan interface on the host. Then the generated configuration will use
it as a nerwork hostdev device. So the generated configurations of the
following two fragments are equivalent (see rhbz#1059637).
lxc.network.type = phys
lxc.network.link = eth0.5
lxc.network.type = vlan
lxc.network.link = eth0
lxc.network.vlan.id = 5
---
src/lxc/lxc_native.c | 28 ++++++++++++++++++----
.../lxcconf2xmldata/lxcconf2xml-vlannetwork.config | 12 ++++++++++
tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml | 26 ++++++++++++++++++++
tests/lxcconf2xmltest.c | 1 +
4 files changed, 62 insertions(+), 5 deletions(-)
create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.config
create mode 100644 tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml
diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c
index 9a16523..8d8c50a 100644
--- a/src/lxc/lxc_native.c
+++ b/src/lxc/lxc_native.c
@@ -411,22 +411,33 @@ lxcAddNetworkDefinition(virDomainDefPtr def,
const char *link,
const char *mac,
const char *flag,
- const char *macvlanmode)
+ const char *macvlanmode,
+ const char *vlanid)
{
virDomainNetDefPtr net = NULL;
virDomainHostdevDefPtr hostdev = NULL;
+ bool isPhys, isVlan = false;
if ((type == NULL) || STREQ(type, "empty") || STREQ(type, "") ||
STREQ(type, "none"))
return 0;
- if (type != NULL && STREQ(type, "phys")) {
+ isPhys = STREQ(type, "phys");
+ isVlan = STREQ(type, "vlan");
+ if (type != NULL && (isPhys || isVlan)) {
if (!link ||
!(hostdev = lxcCreateHostdevDef(VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES,
VIR_DOMAIN_HOSTDEV_CAPS_TYPE_NET,
link)))
goto error;
+ /* This still requires the user to manually setup the vlan interface
+ * on the host */
+ if (isVlan && !(link && vlanid &&
+ virAsprintf(&hostdev->source.caps.u.net.iface,
+ "%s.%s", link, vlanid) >= 0))
+ goto error;
+
if (VIR_EXPAND_N(def->hostdevs, def->nhostdevs, 1) < 0)
goto error;
def->hostdevs[def->nhostdevs - 1] = hostdev;
@@ -454,6 +465,7 @@ typedef struct {
char *mac;
char *flag;
char *macvlanmode;
+ char *vlanid;
bool privnet;
size_t networks;
} lxcNetworkParseData;
@@ -469,7 +481,8 @@ lxcNetworkWalkCallback(const char *name, virConfValuePtr value, void *data)
status = lxcAddNetworkDefinition(parseData->def, parseData->type,
parseData->link, parseData->mac,
parseData->flag,
- parseData->macvlanmode);
+ parseData->macvlanmode,
+ parseData->vlanid);
if (status < 0)
return -1;
@@ -484,6 +497,7 @@ lxcNetworkWalkCallback(const char *name, virConfValuePtr value, void *data)
parseData->mac = NULL;
parseData->flag = NULL;
parseData->macvlanmode = NULL;
+ parseData->vlanid = NULL;
/* Keep the new value */
parseData->type = value->str;
@@ -496,6 +510,8 @@ lxcNetworkWalkCallback(const char *name, virConfValuePtr value, void *data)
parseData->flag = value->str;
else if (STREQ(name, "lxc.network.macvlan.mode"))
parseData->macvlanmode = value->str;
+ else if (STREQ(name, "lxc.network.vlan.id"))
+ parseData->vlanid = value->str;
else if (STRPREFIX(name, "lxc.network"))
VIR_WARN("Unhandled network property: %s = %s",
name,
@@ -508,14 +524,16 @@ static int
lxcConvertNetworkSettings(virDomainDefPtr def, virConfPtr properties)
{
int status;
- lxcNetworkParseData data = {def, NULL, NULL, NULL, NULL, NULL, true, 0};
+ lxcNetworkParseData data = {def, NULL, NULL, NULL, NULL,
+ NULL, NULL, true, 0};
virConfWalk(properties, lxcNetworkWalkCallback, &data);
/* Add the last network definition found */
status = lxcAddNetworkDefinition(def, data.type, data.link,
data.mac, data.flag,
- data.macvlanmode);
+ data.macvlanmode,
+ data.vlanid);
if (status < 0)
return -1;
else if (status > 0)
diff --git a/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.config b/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.config
new file mode 100644
index 0000000..327202c
--- /dev/null
+++ b/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.config
@@ -0,0 +1,12 @@
+# Template used to create this container: opensuse
+# Template script checksum (SHA-1): 27307e0a95bd81b2c0bd82d6f87fdbe83be075ef
+
+lxc.network.type = vlan
+lxc.network.flags = up
+lxc.network.link = eth0
+lxc.network.hwaddr = 02:00:15:8f:05:c1
+lxc.network.vlan.id = 2
+
+lxc.rootfs = /var/lib/lxc/migrate_test/rootfs
+lxc.utsname = migrate_test
+lxc.autodev=1
diff --git a/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml b/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml
new file mode 100644
index 0000000..7d6d51b
--- /dev/null
+++ b/tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml
@@ -0,0 +1,26 @@
+<domain type='lxc'>
+ <name>migrate_test</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>65536</memory>
+ <currentMemory unit='KiB'>0</currentMemory>
+ <vcpu placement='static' current='0'>1</vcpu>
+ <os>
+ <type>exe</type>
+ <init>/sbin/init</init>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <filesystem type='mount' accessmode='passthrough'>
+ <source dir='/var/lib/lxc/migrate_test/rootfs'/>
+ <target dir='/'/>
+ </filesystem>
+ <hostdev mode='capabilities' type='net'>
+ <source>
+ <interface>eth0.2</interface>
+ </source>
+ </hostdev>
+ </devices>
+</domain>
diff --git a/tests/lxcconf2xmltest.c b/tests/lxcconf2xmltest.c
index 77baf20..e799893 100644
--- a/tests/lxcconf2xmltest.c
+++ b/tests/lxcconf2xmltest.c
@@ -108,6 +108,7 @@ mymain(void)
DO_TEST("nonenetwork", false);
DO_TEST("physnetwork", false);
DO_TEST("macvlannetwork", false);
+ DO_TEST("vlannetwork", false);
DO_TEST("idmap", false);
DO_TEST("memtune", false);
DO_TEST("cputune", false);
--
1.8.5.2
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