1 files changed, 114 insertions, 0 deletions
diff --git a/tests/hwsim/hwsim.py b/tests/hwsim/hwsim.py
new file mode 100644
index 000000000000..bc8aabdd49c2
--- /dev/null
+++ b/tests/hwsim/hwsim.py
@@ -0,0 +1,114 @@
+#
+# HWSIM generic netlink controller code
+# Copyright (c) 2014	Intel Corporation
+#
+# Author: Johannes Berg <johannes.berg@intel.com>
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import netlink, os
+
+# constants
+HWSIM_CMD_CREATE_RADIO = 4
+HWSIM_CMD_DESTROY_RADIO = 5
+
+HWSIM_ATTR_CHANNELS = 9
+HWSIM_ATTR_RADIO_ID = 10
+HWSIM_ATTR_SUPPORT_P2P_DEVICE = 14
+HWSIM_ATTR_USE_CHANCTX = 15
+
+# the controller class
+class HWSimController(object):
+    def __init__(self):
+        self._conn = netlink.Connection(netlink.NETLINK_GENERIC)
+        self._fid = netlink.genl_controller.get_family_id(b'MAC80211_HWSIM')
+
+    def create_radio(self, n_channels=None, use_chanctx=False,
+                     use_p2p_device=False):
+        attrs = []
+        if n_channels:
+            attrs.append(netlink.U32Attr(HWSIM_ATTR_CHANNELS, n_channels))
+        if use_chanctx:
+            attrs.append(netlink.FlagAttr(HWSIM_ATTR_USE_CHANCTX))
+        if use_p2p_device:
+            attrs.append(netlink.FlagAttr(HWSIM_ATTR_SUPPORT_P2P_DEVICE))
+
+        msg = netlink.GenlMessage(self._fid, HWSIM_CMD_CREATE_RADIO,
+                                  flags=netlink.NLM_F_REQUEST |
+                                        netlink.NLM_F_ACK,
+                                  attrs=attrs)
+        return msg.send_and_recv(self._conn).ret
+
+    def destroy_radio(self, radio_id):
+        attrs = [netlink.U32Attr(HWSIM_ATTR_RADIO_ID, radio_id)]
+        msg = netlink.GenlMessage(self._fid, HWSIM_CMD_DESTROY_RADIO,
+                                  flags=netlink.NLM_F_REQUEST |
+                                        netlink.NLM_F_ACK,
+                                  attrs=attrs)
+        msg.send_and_recv(self._conn)
+
+class HWSimRadio(object):
+    def __init__(self, n_channels=None, use_chanctx=False,
+                 use_p2p_device=False):
+        self._controller = HWSimController()
+        self._n_channels = n_channels
+        self._use_chanctx = use_chanctx
+        self._use_p2p_dev = use_p2p_device
+
+    def __enter__(self):
+        self._radio_id = self._controller.create_radio(
+              n_channels=self._n_channels,
+              use_chanctx=self._use_chanctx,
+              use_p2p_device=self._use_p2p_dev)
+        if self._radio_id < 0:
+            raise Exception("Failed to create radio (err:%d)" % self._radio_id)
+        try:
+            iface = os.listdir('/sys/class/mac80211_hwsim/hwsim%d/net/' % self._radio_id)[0]
+        except Exception as e:
+            self._controller.destroy_radio(self._radio_id)
+            raise e
+        return self._radio_id, iface
+
+    def __exit__(self, type, value, traceback):
+        self._controller.destroy_radio(self._radio_id)
+
+
+def create(args):
+    print('Created radio %d' % c.create_radio(n_channels=args.channels,
+                                              use_chanctx=args.chanctx))
+
+def destroy(args):
+    print(c.destroy_radio(args.radio))
+
+if __name__ == '__main__':
+    import argparse
+    c = HWSimController()
+
+    parser = argparse.ArgumentParser(description='send hwsim control commands')
+    subparsers = parser.add_subparsers(help="Commands", dest='command')
+    parser_create = subparsers.add_parser('create', help='create a radio')
+    parser_create.add_argument('--channels', metavar='<number_of_channels>', type=int,
+                               default=0,
+                               help='Number of concurrent channels supported ' +
+                               'by the radio. If not specified, the number ' +
+                               'of channels specified in the ' +
+                               'mac80211_hwsim.channels module parameter is ' +
+                               'used')
+    parser_create.add_argument('--chanctx', action="store_true",
+                               help='Use channel contexts, regardless of ' +
+                               'whether the number of channels is 1 or ' +
+                               'greater. By default channel contexts are ' +
+                               'only used if the number of channels is ' +
+                               'greater than 1.')
+    parser_create.set_defaults(func=create)
+
+    parser_destroy = subparsers.add_parser('destroy', help='destroy a radio')
+    parser_destroy.add_argument('radio', metavar='<radio>', type=int,
+                                default=0,
+                                help='The number of the radio to be ' +
+                                'destroyed (i.e., 0 for phy0, 1 for phy1...)')
+    parser_destroy.set_defaults(func=destroy)
+
+    args = parser.parse_args()
+    args.func(args)