fe8691248d
The controller module allows adding/destroying radios on the fly with the recent hwsim changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
#
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# HWSIM generic netlink controller code
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# Copyright (c) 2014 Intel Corporation
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#
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# Author: Johannes Berg <johannes.berg@intel.com>
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import netlink
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# constants
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HWSIM_CMD_CREATE_RADIO = 4
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HWSIM_CMD_DESTROY_RADIO = 5
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HWSIM_ATTR_CHANNELS = 9
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HWSIM_ATTR_RADIO_ID = 10
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# the controller class
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class HWSimController(object):
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def __init__(self):
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self._conn = netlink.Connection(netlink.NETLINK_GENERIC)
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self._fid = netlink.genl_controller.get_family_id('MAC80211_HWSIM')
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def create_radio(self, n_channels=None):
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attrs = []
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if n_channels:
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attrs.append(netlink.U32Attr(HWSIM_ATTR_CHANNELS, n_channels))
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msg = netlink.GenlMessage(self._fid, HWSIM_CMD_CREATE_RADIO,
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flags = netlink.NLM_F_REQUEST |
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netlink.NLM_F_ACK,
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attrs = attrs)
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return msg.send_and_recv(self._conn).ret
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def destroy_radio(self, radio_id):
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attrs = [netlink.U32Attr(HWSIM_ATTR_RADIO_ID, radio_id)]
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msg = netlink.GenlMessage(self._fid, HWSIM_CMD_DESTROY_RADIO,
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flags = netlink.NLM_F_REQUEST |
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netlink.NLM_F_ACK,
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attrs = attrs)
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msg.send_and_recv(self._conn)
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if __name__ == '__main__':
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import sys
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c = HWSimController()
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if sys.argv[1] == 'create':
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if len(sys.argv) > 2:
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n_channels = int(sys.argv[2])
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else:
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n_channels = 0
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print 'Created radio %d' % c.create_radio(n_channels=n_channels)
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elif sys.argv[1] == 'destroy':
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print c.destroy_radio(int(sys.argv[2]))
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