From: Daniel Gabay <daniel.gabay@xxxxxxxxx>
Signed-off-by: Daniel Gabay <daniel.gabay@xxxxxxxxx>
---
tests/hwsim/test_spp_amsdu.py | 170 ++++++++++++++++++++++++++++++++++
1 file changed, 170 insertions(+)
create mode 100644 tests/hwsim/test_spp_amsdu.py
diff --git a/tests/hwsim/test_spp_amsdu.py b/tests/hwsim/test_spp_amsdu.py
new file mode 100644
index 0000000000..4cae316585
--- /dev/null
+++ b/tests/hwsim/test_spp_amsdu.py
@@ -0,0 +1,170 @@
+# SPP A-MSDU tests
+# Copyright (c) 2025, Intel Corporation
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import logging
+import hostapd
+from utils import HwsimSkip, parse_ie
+import hwsim_utils
+import time
+import os
+from tshark import run_tshark
+
+logger = logging.getLogger()
+
+SPP_AMSDU_SUPP_CIPHERS = ['CCMP', 'GCMP', 'CCMP-256', 'GCMP-256']
+SPP_AMSDU_STA_FLAG = '[SPP-A-MSDU]'
+WLAN_EID_RSNX = 244
+RSNX_SPP_AMSDU_CAPAB_MASK = 0x4000
+RSNX_SPP_AMSDU_CAPAB_BIT = 14
+
+def setup_ap(apdev, ssid, spp_amsdu, cipher):
+ params = {'ssid': ssid}
+ wpa_passphrase = ''
+
+ if cipher is not '':
+ wpa_passphrase = '123456789'
+ params.update({'wpa': '2',
+ 'wpa_passphrase': wpa_passphrase,
+ 'wpa_key_mgmt': 'WPA-PSK',
+ 'rsn_pairwise': cipher,
+ 'group_cipher': cipher})
+
+ # when None, use the default (enabled) spp_amsdu cfg
+ if spp_amsdu is not None:
+ params['spp_amsdu'] = spp_amsdu
+
+ return hostapd.add_ap(apdev, params), wpa_passphrase
+
+def skip_unsupported_spp_amsdu(dev, hapd):
+ res = hapd.get_driver_status_field('capa.flags2.spp_amsdu')
+ if int(res, 0) == 0:
+ raise HwsimSkip('AP: SPP A-MSDU is not supported')
+
+ # Sanity (should be the same for both AP/STA)
+ res = dev.get_driver_status_field('capa.flags2.spp_amsdu')
+ if int(res, 0) == 0:
+ raise HwsimSkip('STA: SPP A-MSDU is not supported')
+
+def check_sta_rsnxe(spp_amsdu_enabled, logdir):
+ """Check STA assoc request RSXNE"""
+ # tshark returns the rsnx data in a comma separated string
+ out = run_tshark(os.path.join(logdir, 'hwsim0.pcapng'),
+ "wlan.fc.type_subtype == 0x0",
+ display=["wlan.rsnx"])
+ hex_rsnxe = out.rstrip().split(',')
+ if len(hex_rsnxe) < 2:
+ if spp_amsdu_enabled:
+ raise Exception('STA: RSNXE SPP A-MSDU is not set')
+ else:
+ return
+
+ second_rsnxe_byte = int(hex_rsnxe[1], 16)
+ spp_amsdu_set = second_rsnxe_byte & (1 << (RSNX_SPP_AMSDU_CAPAB_BIT % 8))
+ logger.debug('STA RSNXE SPP A-MSDU capable bit is %sset' %
+ '' if spp_amsdu_set else 'not ')
+
+ if spp_amsdu_enabled and not spp_amsdu_set:
+ raise Exception('STA: SPP A-MSDU capab bit is not set in RSNXE')
+ if not spp_amsdu_enabled and spp_amsdu_set:
+ raise Exception('STA: Unexpected SPP A-MSDU capab bit set in RSNXE')
+
+def check_ap_rsnxe(spp_amsdu_enabled, ies):
+ if not WLAN_EID_RSNX in ies:
+ if spp_amsdu_enabled:
+ raise Exception('AP: RSNXE is not present')
+ else:
+ # nothing to check
+ return
+
+ rsnx_hex_str = ''.join([hex(byte)[2:].zfill(2) \
+ for byte in reversed(ies[WLAN_EID_RSNX])])
+ rsnx_hex = int(rsnx_hex_str, 16)
+ spp_amsdu_set = rsnx_hex & RSNX_SPP_AMSDU_CAPAB_MASK
+ logger.debug('AP RSNXE SPP A-MSDU capable bit is %sset' %
+ '' if spp_amsdu_set else 'not ')
+ if spp_amsdu_enabled and not spp_amsdu_set:
+ raise Exception('AP: SPP A-MSDU capab bit is not set in RSNXE')
+ if not spp_amsdu_enabled and spp_amsdu_set:
+ raise Exception('AP: Unexpected SPP A-MSDU capab bit set in RSNXE')
+
+def check_ap_sta_flags(dev, hapd, spp_amsdu_enabled):
+ """Check AP SPP A-MSDU STA flags"""
+ sta = hapd.get_sta(dev.own_addr())
+ spp_amsdu_flag_set = SPP_AMSDU_STA_FLAG in sta['flags']
+
+ logger.debug('AP SPP A-MSDU STA flag is %sset' %
+ '' if spp_amsdu_flag_set else 'not ')
+ if spp_amsdu_enabled and not spp_amsdu_flag_set:
+ raise Exception('SPP-A-MSDU flag not present for STA')
+ if not spp_amsdu_enabled and spp_amsdu_flag_set:
+ raise Exception('Unexpected SPP-A-MSDU flag present for STA')
+
+def _run(dev, apdev, logdir, spp_amsdu, cipher=''):
+ """
+ 1. Connect to AP (SPP A-MSDU enabled/disabled)
+ 2. test connectivity
+ 3. Verify AP/STA advertised SPP A-MSDU capabilities (enabled/disabled)
+ """
+ # Sanity
+ if cipher != '' and cipher not in dev.get_capability('pairwise'):
+ raise HwsimSkip('%s not supported' % cipher)
+
+ ssid='test-spp-amsdu-%s' % cipher if cipher is not '' else 'open'
+ hapd, wpa_passphrase = setup_ap(apdev, ssid, spp_amsdu=spp_amsdu,
+ cipher=cipher)
+ skip_unsupported_spp_amsdu(dev, hapd)
+
+ dev.connect(ssid, key_mgmt='NONE' if cipher == '' else '',
+ psk=wpa_passphrase, pairwise=cipher, group=cipher)
+ hapd.wait_sta()
+ time.sleep(0.1)
+ hwsim_utils.test_connectivity(dev, hapd)
+
+ if spp_amsdu != '0' and cipher in SPP_AMSDU_SUPP_CIPHERS:
+ spp_amsdu_enabled = True
+ else:
+ spp_amsdu_enabled = False
+
+ # Verify AP capabilities
+ bss = dev.get_bss(hapd.own_addr())
+ bss_ies = parse_ie(bss['ie'])
+ check_ap_rsnxe(spp_amsdu_enabled, bss_ies)
+ check_ap_sta_flags(dev, hapd, spp_amsdu_enabled)
+
+ # Verify STA capabilities
+ check_sta_rsnxe(spp_amsdu_enabled, logdir)
+
+def test_spp_amsdu_ccmp(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify enabled (CCMP)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None, cipher='CCMP')
+
+def test_spp_amsdu_ccmp256(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify enabled (CCMP-256)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None, cipher='CCMP-256')
+
+def test_spp_amsdu_gcmp(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify enabled (GCMP)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None, cipher='GCMP')
+
+def test_spp_amsdu_gcmp256(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify enabled (GCMP-256)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None, cipher='GCMP-256')
+
+def test_spp_amsdu_tkip(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify AP *disables* it (TKIP)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None, cipher='TKIP')
+
+def test_spp_amsdu_open(dev, apdev, params):
+ """Use default spp_amsdu conf option, verify AP *disables* it (OPEN)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu=None)
+
+def test_spp_amsdu_disabled(dev, apdev, params):
+ """Set spp_amsdu=0 conf option, verify disabled (CCMP)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu='0', cipher='CCMP')
+
+def test_spp_amsdu_conf_enabled(dev, apdev, params):
+ """Set spp_amsdu=1, verify enabled (CCMP)"""
+ _run(dev[0], apdev[0], params['logdir'], spp_amsdu='1', cipher='CCMP')
--
2.43.0
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