Add private bridge to use for communication between host and guest.
Config of parameter:
bridge = private
private_bridge_name = private(default)
private_bridge_addr = 192.168.0.1(default)
private_bridge_mask = 255.255.255.0(default)
pre_command = scripts/private_bridge_setup.py
Signed-off-by: sshang <sshang@xxxxxxxxxx>
---
client/tests/kvm/scripts/private_bridge_setup.py | 90 ++++++++++++++++++++++
1 files changed, 90 insertions(+), 0 deletions(-)
create mode 100755 client/tests/kvm/scripts/private_bridge_setup.py
diff --git a/client/tests/kvm/scripts/private_bridge_setup.py b/client/tests/kvm/scripts/private_bridge_setup.py
new file mode 100755
index 0000000..fe1b653
--- /dev/null
+++ b/client/tests/kvm/scripts/private_bridge_setup.py
@@ -0,0 +1,90 @@
+#!/usr/bin/python
+import os, sys, commands
+
+class SetupError(Exception):
+ """
+ Simple wrapper for the builtin Exception class.
+ """
+ pass
+
+
+class SetupPrivateBridge(object):
+ """
+ Setup private bridge and running dnsmasq for communication
+ between host and guest.
+ """
+ def __init__(self):
+ script_dir = os.path.dirname(sys.modules[__name__].__file__)
+ kvm_test_dir = os.path.abspath(os.path.join(script_dir, ".."))
+ self.private_bridge_name = os.environ.get(\
+ 'KVM_TEST_private_bridge_name','private')
+ self.private_bridge_addr = os.environ.get(\
+ 'KVM_TEST_private_bridge_addr','192.168.0.1')
+ self.private_bridge_mask = os.environ.get(\
+ 'KVM_TEST_private_bridge_mask','255.255.255.0')
+ self.dhcp_boot = os.environ.get(\
+ 'KVM_TEST_dhcp_boot','/pxelinux.0')
+ self.tftp_root = os.environ.get('KVM_TEST_tftp')
+ if self.tftp_root:
+ self.tftp_root = os.path.join(kvm_test_dir, self.tftp_root)
+ self.qemu_ifup_file = os.path.join(script_dir, "qemu-ifup-private")
+
+
+ def setup_private_bridge(self):
+ """
+ Setup private bridge.
+ """
+
+ text = """#!/bin/sh
+switch=%s
+/sbin/ifconfig $1 0.0.0.0 up
+/usr/sbin/brctl addif ${switch} $1
+"""
+ text = text % (self.private_bridge_name)
+ f = open(self.qemu_ifup_file,"w")
+ f.write(text)
+ f.close()
+ commands.getoutput('chmod a+x %s' % self.qemu_ifup_file)
+
+ check_br_cmd = "brctl show | grep %s" % self.private_bridge_name
+ s,o = commands.getstatusoutput(check_br_cmd)
+ if s:
+ add_br_cmd = "brctl addbr %s" % self.private_bridge_name
+ s,o = commands.getstatusoutput(add_br_cmd)
+ if s:
+ raise SetupError('Add bridge error: %s' % o)
+ else:
+ ifdown_cmd = "ifconfig %s down" % self.private_bridge_name
+ s,o = commands.getstatusoutput(ifdown_cmd)
+ if s:
+ raise SetupError('Down bridge error: %s' % o)
+
+ ifconfig_cmd = "ifconfig %s %s netmask %s up" % \
+ (self.private_bridge_name,self.private_bridge_addr,\
+ self.private_bridge_mask)
+ s,o = commands.getstatusoutput(ifconfig_cmd)
+ if s:
+ raise SetupError('Config bridge error: %s' % o)
+
+ commands.getoutput("pkill dnsmasq")
+
+ addr_list = self.private_bridge_addr.split('.')
+ addr_list[3] = str(int(addr_list[3]) + 1)
+ dhcp_addr_begin = '.'.join(addr_list)
+ addr_list[3] = '254'
+ dhcp_addr_end = '.'.join(addr_list)
+
+ dnsmasq_argument = " -u root --listen-address %s --dhcp-range %s,%s" %\
+ (self.private_bridge_addr,dhcp_addr_begin,dhcp_addr_end)
+ if self.tftp_root:
+ dnsmasq_argument += " --dhcp-boot %s --enable-tftp --tftp-root %s"\
+ % (self.dhcp_boot,self.tftp_root)
+ dnsmasq_cmd = "dnsmasq" + dnsmasq_argument
+ s,o = commands.getstatusoutput(dnsmasq_cmd)
+ if s:
+ raise SetupError("Running dnsmasq fail %s" % o)
+ print "Private bridge dnsmasq setup finished successfuly"
+
+if __name__ == "__main__":
+ setup = SetupPrivateBridge()
+ setup.setup_private_bridge()
--
1.5.5.6
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