tests: sigma_dut test cases

Add possibility to test sigma_dut functionality as part of the hwsim
test cases.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

tests/hwsim/test_sigma_dut.py

@@ -0,0 +1,220 @@
+# Test cases for sigma_dut
+# Copyright (c) 2017, Qualcomm Atheros, Inc.
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import logging
+logger = logging.getLogger()
+import os
+import socket
+import subprocess
+import time
+
+import hostapd
+from utils import HwsimSkip
+from hwsim import HWSimRadio
+
+def check_sigma_dut():
+    if not os.path.exists("./sigma_dut"):
+        raise HwsimSkip("sigma_dut not available")
+
+def sigma_dut_cmd(cmd, port=9000):
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,
+                         socket.IPPROTO_TCP)
+    sock.settimeout(2)
+    addr = ('127.0.0.1', port)
+    sock.connect(addr)
+    sock.send(cmd + "\r\n")
+    try:
+        res = sock.recv(1000)
+        running = False
+        done = False
+        for line in res.splitlines():
+            if line.startswith("status,RUNNING"):
+                running = True
+            elif line.startswith("status,INVALID"):
+                done = True
+            elif line.startswith("status,ERROR"):
+                done = True
+            elif line.startswith("status,COMPLETE"):
+                done = True
+        if running and not done:
+            # Read the actual response
+            res = sock.recv(1000)
+    except:
+        res = ''
+        pass
+    sock.close()
+    res = res.rstrip()
+    logger.debug("sigma_dut: '%s' --> '%s'" % (cmd, res))
+    return res
+
+def sigma_dut_cmd_check(cmd):
+    res = sigma_dut_cmd(cmd)
+    if "COMPLETE" not in res:
+        raise Exception("sigma_dut command failed: " + cmd)
+    return res
+
+def start_sigma_dut(ifname, debug=False):
+    check_sigma_dut()
+    cmd = [ './sigma_dut',
+            '-M', ifname,
+            '-S', ifname,
+            '-F', '../../hostapd/hostapd',
+            '-G',
+            '-j', ifname ]
+    if debug:
+        cmd += [ '-d' ]
+    sigma = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    for i in range(20):
+        try:
+            res = sigma_dut_cmd("HELLO")
+            break
+        except:
+            time.sleep(0.05)
+    return sigma
+
+def stop_sigma_dut(sigma):
+    sigma.terminate()
+    sigma.wait()
+    out, err = sigma.communicate()
+    logger.debug("sigma_dut stdout: " + str(out))
+    logger.debug("sigma_dut stderr: " + str(err))
+
+def sigma_dut_wait_connected(ifname):
+    for i in range(50):
+        res = sigma_dut_cmd("sta_is_connected,interface," + ifname)
+        if "connected,1" in res:
+            break
+        time.sleep(0.2)
+        if i == 49:
+            raise Exception("Connection did not complete")
+
+def test_sigma_dut_basic(dev, apdev):
+    """sigma_dut basic functionality"""
+    sigma = start_sigma_dut(dev[0].ifname)
+
+    res = sigma_dut_cmd("UNKNOWN")
+    if "status,INVALID,errorCode,Unknown command" not in res:
+        raise Exception("Unexpected sigma_dut response to unknown command")
+
+    tests = [ ("ca_get_version", "status,COMPLETE,version,1.0"),
+              ("device_get_info", "status,COMPLETE,vendor"),
+              ("device_list_interfaces,interfaceType,foo", "status,ERROR"),
+              ("device_list_interfaces,interfaceType,802.11",
+               "status,COMPLETE,interfaceType,802.11,interfaceID," + dev[0].ifname) ]
+    for cmd, response in tests:
+        res = sigma_dut_cmd(cmd)
+        if response not in res:
+            raise Exception("Unexpected %s response: %s" % (cmd, res))
+
+    stop_sigma_dut(sigma)
+
+def test_sigma_dut_open(dev, apdev):
+    """sigma_dut controlled open network association"""
+    ifname = dev[0].ifname
+    sigma = start_sigma_dut(ifname)
+
+    hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
+
+    sigma_dut_cmd_check("sta_set_ip_config,interface,%s,dhcp,0,ip,127.0.0.11,mask,255.255.255.0" % ifname)
+    sigma_dut_cmd_check("sta_set_encryption,interface,%s,ssid,%s,encpType,none" % (ifname, "open"))
+    sigma_dut_cmd_check("sta_associate,interface,%s,ssid,%s" % (ifname, "open"))
+    sigma_dut_wait_connected(ifname)
+    sigma_dut_cmd_check("sta_get_ip_config,interface," + ifname)
+    sigma_dut_cmd_check("sta_disconnect,interface," + ifname)
+    sigma_dut_cmd_check("sta_reset_default,interface," + ifname)
+
+    stop_sigma_dut(sigma)
+
+def test_sigma_dut_psk_pmf(dev, apdev):
+    """sigma_dut controlled PSK+PMF association"""
+    ifname = dev[0].ifname
+    sigma = start_sigma_dut(ifname)
+
+    ssid = "test-pmf-required"
+    params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
+    params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
+    params["ieee80211w"] = "2"
+    hapd = hostapd.add_ap(apdev[0], params)
+
+    sigma_dut_cmd_check("sta_reset_default,interface,%s,prog,PMF" % ifname)
+    sigma_dut_cmd_check("sta_set_ip_config,interface,%s,dhcp,0,ip,127.0.0.11,mask,255.255.255.0" % ifname)
+    sigma_dut_cmd_check("sta_set_psk,interface,%s,ssid,%s,passphrase,%s,encpType,aes-ccmp,keymgmttype,wpa2,PMF,Required" % (ifname, "test-pmf-required", "12345678"))
+    sigma_dut_cmd_check("sta_associate,interface,%s,ssid,%s,channel,1" % (ifname, "test-pmf-required"))
+    sigma_dut_wait_connected(ifname)
+    sigma_dut_cmd_check("sta_get_ip_config,interface," + ifname)
+    sigma_dut_cmd_check("sta_disconnect,interface," + ifname)
+    sigma_dut_cmd_check("sta_reset_default,interface," + ifname)
+
+    stop_sigma_dut(sigma)
+
+def test_sigma_dut_sta_override_rsne(dev, apdev):
+    """sigma_dut and RSNE override on STA"""
+    ifname = dev[0].ifname
+    sigma = start_sigma_dut(ifname)
+
+    ssid = "test-psk"
+    params = hostapd.wpa2_params(ssid=ssid, passphrase="12345678")
+    hapd = hostapd.add_ap(apdev[0], params)
+
+    sigma_dut_cmd_check("sta_set_ip_config,interface,%s,dhcp,0,ip,127.0.0.11,mask,255.255.255.0" % ifname)
+
+    tests = [ "30120100000fac040100000fac040100000fac02",
+              "30140100000fac040100000fac040100000fac02ffff" ]
+    for test in tests:
+        sigma_dut_cmd_check("sta_set_security,interface,%s,ssid,%s,type,PSK,passphrase,%s,EncpType,aes-ccmp,KeyMgmtType,wpa2" % (ifname, "test-psk", "12345678"))
+        sigma_dut_cmd_check("dev_configure_ie,interface,%s,IE_Name,RSNE,Contents,%s" % (ifname, test))
+        sigma_dut_cmd_check("sta_associate,interface,%s,ssid,%s,channel,1" % (ifname, "test-psk"))
+        sigma_dut_wait_connected(ifname)
+        sigma_dut_cmd_check("sta_disconnect,interface," + ifname)
+        dev[0].dump_monitor()
+
+    sigma_dut_cmd_check("sta_set_security,interface,%s,ssid,%s,type,PSK,passphrase,%s,EncpType,aes-ccmp,KeyMgmtType,wpa2" % (ifname, "test-psk", "12345678"))
+    sigma_dut_cmd_check("dev_configure_ie,interface,%s,IE_Name,RSNE,Contents,300101" % ifname)
+    sigma_dut_cmd_check("sta_associate,interface,%s,ssid,%s,channel,1" % (ifname, "test-psk"))
+
+    ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
+    if ev is None:
+        raise Exception("Association rejection not reported")
+    if "status_code=40" not in ev:
+        raise Exception("Unexpected status code: " + ev)
+
+    sigma_dut_cmd_check("sta_reset_default,interface," + ifname)
+
+    stop_sigma_dut(sigma)
+
+def test_sigma_dut_ap_psk(dev, apdev):
+    """sigma_dut controlled AP"""
+    with HWSimRadio() as (radio, iface):
+        sigma = start_sigma_dut(iface)
+        try:
+            sigma_dut_cmd_check("ap_reset_default")
+            sigma_dut_cmd_check("ap_set_wireless,NAME,AP,CHANNEL,1,SSID,test-psk,MODE,11ng")
+            sigma_dut_cmd_check("ap_set_security,NAME,AP,KEYMGNT,WPA2-PSK,PSK,12345678")
+            sigma_dut_cmd_check("ap_config_commit,NAME,AP")
+
+            dev[0].connect("test-psk", psk="12345678", scan_freq="2412")
+
+            sigma_dut_cmd_check("ap_reset_default")
+        finally:
+            stop_sigma_dut(sigma)
+
+def test_sigma_dut_ap_override_rsne(dev, apdev):
+    """sigma_dut controlled AP overriding RSNE"""
+    with HWSimRadio() as (radio, iface):
+        sigma = start_sigma_dut(iface)
+        try:
+            sigma_dut_cmd_check("ap_reset_default")
+            sigma_dut_cmd_check("ap_set_wireless,NAME,AP,CHANNEL,1,SSID,test-psk,MODE,11ng")
+            sigma_dut_cmd_check("ap_set_security,NAME,AP,KEYMGNT,WPA2-PSK,PSK,12345678")
+            sigma_dut_cmd_check("dev_configure_ie,NAME,AP,interface,%s,IE_Name,RSNE,Contents,30180100000fac040200ffffffff000fac040100000fac020c00" % iface)
+            sigma_dut_cmd_check("ap_config_commit,NAME,AP")
+
+            dev[0].connect("test-psk", psk="12345678", scan_freq="2412")
+
+            sigma_dut_cmd_check("ap_reset_default")
+        finally:
+            stop_sigma_dut(sigma)