# HG changeset patch
# User Anthony Perard <anthony.perard@xxxxxxxxxx>
# Date 1281368762 -3600
# Node ID 0232bc7c9544c1941c667e625526bc0bc4aa2a97
# Parent 88adea5b4546ba2880d55e399058322b38c08124
tools/hotplug, Use udev rules instead of qemu script to setup the bridge.
From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
This patch adds a second argument to vif-bridge script. It can be "vif"
or "tap". "vif" give the default behavior and "tap" just add the
interface to the found bridge when the action is "add".
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
tools/hotplug/Linux/vif-bridge | 20 +++++---
tools/hotplug/Linux/vif-common.sh | 76 ++++++++++++++++++++++++----------
tools/hotplug/Linux/xen-backend.rules | 5 +-
tools/libxl/libxl.c | 6 +-
4 files changed, 73 insertions(+), 34 deletions(-)
diff -r 88adea5b4546 -r 0232bc7c9544 tools/hotplug/Linux/vif-bridge
--- a/tools/hotplug/Linux/vif-bridge Mon Aug 09 16:46:01 2010 +0100
+++ b/tools/hotplug/Linux/vif-bridge Mon Aug 09 16:46:02 2010 +0100
@@ -81,20 +81,26 @@ fi
case "$command" in
online)
- setup_bridge_port "$vif"
- add_to_bridge "$bridge" "$vif"
+ setup_bridge_port "$dev"
+ add_to_bridge "$bridge" "$dev"
;;
offline)
- do_without_error brctl delif "$bridge" "$vif"
- do_without_error ifconfig "$vif" down
+ do_without_error brctl delif "$bridge" "$dev"
+ do_without_error ifconfig "$dev" down
+ ;;
+
+ add)
+ add_to_bridge "$bridge" "$dev"
;;
esac
-handle_iptable
+if [ "$type_if" = vif ]; then
+ handle_iptable
+fi
-log debug "Successful vif-bridge $command for $vif, bridge $bridge."
-if [ "$command" == "online" ]
+log debug "Successful vif-bridge $command for $dev, bridge $bridge."
+if [ "$type_if" = vif -a "$command" = "online" ]
then
success
fi
diff -r 88adea5b4546 -r 0232bc7c9544 tools/hotplug/Linux/vif-common.sh
--- a/tools/hotplug/Linux/vif-common.sh Mon Aug 09 16:46:01 2010 +0100
+++ b/tools/hotplug/Linux/vif-common.sh Mon Aug 09 16:46:02 2010 +0100
@@ -31,12 +31,6 @@ then
exit 1
fi
-case "$command" in
- add | remove)
- exit 0
- ;;
-esac
-
# Parameters may be read from the environment, the command line arguments, and
# the store, with overriding in that order. The environment is given by the
@@ -45,24 +39,62 @@ esac
evalVariables "$@"
+# Older versions of Xen do not pass in the type as an argument,
+# so the default value is vif.
+: ${type_if:=vif}
+
+case "$type_if" in
+ vif)
+ dev=$vif
+ ;;
+ tap)
+ dev=$INTERFACE
+ ;;
+ *)
+ log err "unknown interface type $type_if"
+ exit 1
+ ;;
+esac
+
+case "$command" in
+ online | offline)
+ test "$type_if" != vif && exit 0
+ ;;
+ add | remove)
+ test "$type_if" != tap && exit 0
+ ;;
+esac
+
+
+if [ "$type_if" = vif ]; then
+ # Check presence of compulsory args.
+ XENBUS_PATH="${XENBUS_PATH:?}"
+ vif="${vif:?}"
+
+ vifname=$(xenstore_read_default "$XENBUS_PATH/vifname" "")
+ if [ "$vifname" ]
+ then
+ if [ "$command" == "online" ] && ! ip link show "$vifname" >&/dev/null
+ then
+ do_or_die ip link set "$vif" name "$vifname"
+ fi
+ vif="$vifname"
+ fi
+elif [ "$type_if" = tap ]; then
+ # Check presence of compulsory args.
+ : ${INTERFACE:?}
+
+ # Get xenbus_path from device name.
+ # The name is built like that: "tap${domid}.${devid}".
+ dev_=${dev#tap}
+ domid=${dev_%.*}
+ devid=${dev_#*.}
+
+ XENBUS_PATH="/local/domain/0/backend/vif/$domid/$devid"
+fi
+
ip=${ip:-}
ip=$(xenstore_read_default "$XENBUS_PATH/ip" "$ip")
-
-# Check presence of compulsory args.
-XENBUS_PATH="${XENBUS_PATH:?}"
-vif="${vif:?}"
-
-
-vifname=$(xenstore_read_default "$XENBUS_PATH/vifname" "")
-if [ "$vifname" ]
-then
- if [ "$command" == "online" ] && ! ip link show "$vifname" >&/dev/null
- then
- do_or_die ip link set "$vif" name "$vifname"
- fi
- vif="$vifname"
-fi
-
frob_iptable()
{
diff -r 88adea5b4546 -r 0232bc7c9544 tools/hotplug/Linux/xen-backend.rules
--- a/tools/hotplug/Linux/xen-backend.rules Mon Aug 09 16:46:01 2010 +0100
+++ b/tools/hotplug/Linux/xen-backend.rules Mon Aug 09 16:46:02 2010 +0100
@@ -2,10 +2,11 @@ SUBSYSTEM=="xen-backend", KERNEL=="vbd*"
SUBSYSTEM=="xen-backend", KERNEL=="vbd*", RUN+="/etc/xen/scripts/block
$env{ACTION}"
SUBSYSTEM=="xen-backend", KERNEL=="vtpm*", RUN+="/etc/xen/scripts/vtpm
$env{ACTION}"
SUBSYSTEM=="xen-backend", KERNEL=="vif2-*", RUN+="/etc/xen/scripts/vif2
$env{ACTION}"
-SUBSYSTEM=="xen-backend", KERNEL=="vif-*", ACTION=="online",
RUN+="/etc/xen/scripts/vif-setup online"
-SUBSYSTEM=="xen-backend", KERNEL=="vif-*", ACTION=="offline",
RUN+="/etc/xen/scripts/vif-setup offline"
+SUBSYSTEM=="xen-backend", KERNEL=="vif-*", ACTION=="online",
RUN+="/etc/xen/scripts/vif-setup online type_if=vif"
+SUBSYSTEM=="xen-backend", KERNEL=="vif-*", ACTION=="offline",
RUN+="/etc/xen/scripts/vif-setup offline type_if=vif"
SUBSYSTEM=="xen-backend", KERNEL=="vscsi*", RUN+="/etc/xen/scripts/vscsi
$env{ACTION}"
SUBSYSTEM=="xen-backend", ACTION=="remove",
RUN+="/etc/xen/scripts/xen-hotplug-cleanup"
KERNEL=="evtchn", NAME="xen/%k"
KERNEL=="blktap[0-9]*", NAME="xen/%k"
KERNEL=="pci_iomul", NAME="xen/%k"
+SUBSYSTEM=="net", KERNEL=="tap*", ACTION=="add",
RUN+="/etc/xen/scripts/vif-setup $env{ACTION} type_if=tap"
diff -r 88adea5b4546 -r 0232bc7c9544 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Mon Aug 09 16:46:01 2010 +0100
+++ b/tools/libxl/libxl.c Mon Aug 09 16:46:02 2010 +0100
@@ -1075,7 +1075,7 @@ static char ** libxl_build_device_model_
flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"nic,vlan=%d,macaddr=%s,model=%s",
vifs[i].devid, smac, vifs[i].model));
flexarray_set(dm_args, num++, "-net");
- flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"tap,vlan=%d,ifname=%s,bridge=%s",
+ flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"tap,vlan=%d,ifname=%s,bridge=%s,script=no",
vifs[i].devid, vifs[i].ifname, vifs[i].bridge));
ioemu_vifs++;
}
@@ -1206,8 +1206,8 @@ static char ** libxl_build_device_model_
flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"nic,vlan=%d,macaddr=%s,model=%s",
vifs[i].devid, smac, vifs[i].model));
flexarray_set(dm_args, num++, "-net");
- flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"tap,vlan=%d,ifname=%s,script=%s",
- vifs[i].devid, vifs[i].ifname,
"/etc/xen/scripts/qemu-ifup"));
+ flexarray_set(dm_args, num++, libxl_sprintf(ctx,
"tap,vlan=%d,ifname=%s,script=no",
+ vifs[i].devid, vifs[i].ifname));
ioemu_vifs++;
}
}
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