[libvirt] [PATCH 1/2] util: Introduce flags field for macvtap creation
Matthew Rosato
mjrosato at linux.vnet.ibm.com
Tue Jul 1 18:00:56 UTC 2014
Currently, there is one flag passed in during macvtap creation
(withTap) -- Let's convert this field to an unsigned int flag
field for future expansion.
Signed-off-by: Matthew Rosato <mjrosato at linux.vnet.ibm.com>
---
src/lxc/lxc_process.c | 2 +-
src/qemu/qemu_command.c | 3 ++-
src/util/virnetdevmacvlan.c | 24 +++++++++++++++---------
src/util/virnetdevmacvlan.h | 8 +++++++-
4 files changed, 25 insertions(+), 12 deletions(-)
diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
index 0aef13a..ab0c5d0 100644
--- a/src/lxc/lxc_process.c
+++ b/src/lxc/lxc_process.c
@@ -333,7 +333,7 @@ char *virLXCProcessSetupInterfaceDirect(virConnectPtr conn,
net->ifname, &net->mac,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectMode(net),
- false, false, def->uuid,
+ 0, false, def->uuid,
virDomainNetGetActualVirtPortProfile(net),
&res_ifname,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 63f322a..314d8a3 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -171,6 +171,7 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
char *res_ifname = NULL;
int vnet_hdr = 0;
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ unsigned int macvlan_create_flags = VIR_NETDEV_MACVLAN_CREATE_WITH_TAP;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNET_HDR) &&
net->model && STREQ(net->model, "virtio"))
@@ -180,7 +181,7 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
net->ifname, &net->mac,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectMode(net),
- true, vnet_hdr, def->uuid,
+ macvlan_create_flags, vnet_hdr, def->uuid,
virDomainNetGetActualVirtPortProfile(net),
&res_ifname,
vmop, cfg->stateDir,
diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c
index cb85b74..bfbecbf 100644
--- a/src/util/virnetdevmacvlan.c
+++ b/src/util/virnetdevmacvlan.c
@@ -790,6 +790,7 @@ virNetDevMacVLanVPortProfileRegisterCallback(const char *ifname,
* @macaddress: The MAC address for the macvtap device
* @linkdev: The interface name of the NIC to connect to the external bridge
* @mode: int describing the mode for 'bridge', 'vepa', 'private' or 'passthru'.
+ * @flags: OR of virNetDevMacVLanCreateFlags.
* @vnet_hdr: 1 to enable IFF_VNET_HDR, 0 to disable it
* @vmuuid: The UUID of the VM the macvtap belongs to
* @virtPortProfile: pointer to object holding the virtual port profile data
@@ -797,14 +798,15 @@ virNetDevMacVLanVPortProfileRegisterCallback(const char *ifname,
* interface will be stored into if everything succeeded. It is up
* to the caller to free the string.
*
- * Returns file descriptor of the tap device in case of success with @withTap,
- * otherwise returns 0; returns -1 on error.
+ * Returns file descriptor of the tap device in case of success with
+ * flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP, otherwise returns 0; returns
+ * -1 on error.
*/
int virNetDevMacVLanCreateWithVPortProfile(const char *tgifname,
const virMacAddr *macaddress,
const char *linkdev,
virNetDevMacVLanMode mode,
- bool withTap,
+ unsigned int flags,
int vnet_hdr,
const unsigned char *vmuuid,
virNetDevVPortProfilePtr virtPortProfile,
@@ -813,9 +815,12 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *tgifname,
char *stateDir,
virNetDevBandwidthPtr bandwidth)
{
- const char *type = withTap ? "macvtap" : "macvlan";
- const char *prefix = withTap ? MACVTAP_NAME_PREFIX : MACVLAN_NAME_PREFIX;
- const char *pattern = withTap ? MACVTAP_NAME_PATTERN : MACVLAN_NAME_PATTERN;
+ const char *type = (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) ?
+ "macvtap" : "macvlan";
+ const char *prefix = (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) ?
+ MACVTAP_NAME_PREFIX : MACVLAN_NAME_PREFIX;
+ const char *pattern = (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) ?
+ MACVTAP_NAME_PATTERN : MACVLAN_NAME_PATTERN;
int c, rc;
char ifname[IFNAMSIZ];
int retries, do_retry = 0;
@@ -903,7 +908,7 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *tgifname,
goto disassociate_exit;
}
- if (withTap) {
+ if (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) {
if ((rc = virNetDevMacVLanTapOpen(cr_ifname, 10)) < 0)
goto disassociate_exit;
@@ -925,7 +930,7 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *tgifname,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot set bandwidth limits on %s"),
cr_ifname);
- if (withTap)
+ if (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP)
VIR_FORCE_CLOSE(rc); /* sets rc to -1 */
else
rc = -1;
@@ -1069,7 +1074,7 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *ifname ATTRIBUTE_UNUSED,
const virMacAddr *macaddress ATTRIBUTE_UNUSED,
const char *linkdev ATTRIBUTE_UNUSED,
virNetDevMacVLanMode mode ATTRIBUTE_UNUSED,
- bool withTap ATTRIBUTE_UNUSED,
+ unsigned int flags,
int vnet_hdr ATTRIBUTE_UNUSED,
const unsigned char *vmuuid ATTRIBUTE_UNUSED,
virNetDevVPortProfilePtr virtPortProfile ATTRIBUTE_UNUSED,
@@ -1078,6 +1083,7 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *ifname ATTRIBUTE_UNUSED,
char *stateDir ATTRIBUTE_UNUSED,
virNetDevBandwidthPtr bandwidth ATTRIBUTE_UNUSED)
{
+ virCheckFlags(0, NULL);
virReportSystemError(ENOSYS, "%s",
_("Cannot create macvlan devices on this platform"));
return -1;
diff --git a/src/util/virnetdevmacvlan.h b/src/util/virnetdevmacvlan.h
index 9b15a31..f7895b5 100644
--- a/src/util/virnetdevmacvlan.h
+++ b/src/util/virnetdevmacvlan.h
@@ -40,6 +40,12 @@ typedef enum {
} virNetDevMacVLanMode;
VIR_ENUM_DECL(virNetDevMacVLanMode)
+typedef enum {
+ VIR_NETDEV_MACVLAN_CREATE_NONE = 0,
+ /* Create with a tap device */
+ VIR_NETDEV_MACVLAN_CREATE_WITH_TAP = 1 << 0,
+} virNetDevMacVLanCreateFlags;
+
int virNetDevMacVLanCreate(const char *ifname,
const char *type,
const virMacAddr *macaddress,
@@ -56,7 +62,7 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *ifname,
const virMacAddr *macaddress,
const char *linkdev,
virNetDevMacVLanMode mode,
- bool withTap,
+ unsigned int flags,
int vnet_hdr,
const unsigned char *vmuuid,
virNetDevVPortProfilePtr virtPortProfile,
--
1.7.9.5
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