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tests: EAP-pwd protocol testing for the server 

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2019-04-17 13:23:56 +03:00 committed by Jouni Malinen
parent 6151c9b900
commit 9f721917e7
1 changed files with 149 additions and 0 deletions
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149
tests/hwsim/test_eap_proto.py
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@ -7196,6 +7196,155 @@ def test_eap_proto_pwd_errors_server(dev, apdev):
with fail_test(hapd, count, func):
run_eap_pwd_connect(dev[0], hash=True)
def start_pwd_assoc(dev, hapd):
dev.connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PWD", identity="pwd user", password="secret password",
wait_connect=False, scan_freq="2412")
proxy_msg(hapd, dev) # EAP-Identity/Request
proxy_msg(dev, hapd) # EAP-Identity/Response
proxy_msg(hapd, dev) # EAP-pwd-Identity/Request
def stop_pwd_assoc(dev, hapd):
dev.request("REMOVE_NETWORK all")
dev.wait_disconnected()
dev.dump_monitor()
hapd.dump_monitor()
def test_eap_proto_pwd_server(dev, apdev):
"""EAP-pwd protocol testing for the server"""
check_eap_capa(dev[0], "PWD")
params = int_eap_server_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].scan_for_bss(hapd.own_addr(), freq=2412)
hapd.request("SET ext_eapol_frame_io 1")
dev[0].request("SET ext_eapol_frame_io 1")
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Replace exch field with unexpected value
# --> EAP-pwd: Unexpected opcode=4 in state=0
msg = resp[0:18] + "04" + resp[20:]
tx_msg(dev[0], hapd, msg)
# Too short EAP-pwd header (no flags/exch field)
# --> EAP-pwd: Invalid frame
msg = resp[0:4] + "0005" + resp[8:12] + "0005" + "34"
tx_msg(dev[0], hapd, msg)
# Too short EAP-pwd header (L=1 but only one octet of total length field)
# --> EAP-pwd: Frame too short to contain Total-Length field
msg = resp[0:4] + "0007" + resp[8:12] + "0007" + "34" + "81ff"
tx_msg(dev[0], hapd, msg)
# server continues exchange, so start from scratch for the next step
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Too large total length
msg = resp[0:4] + "0008" + resp[8:12] + "0008" + "34" + "c1ffff"
tx_msg(dev[0], hapd, msg)
# server continues exchange, so start from scratch for the next step
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# First fragment
msg = resp[0:4] + "0009" + resp[8:12] + "0009" + "34" + "c100ff" + "aa"
tx_msg(dev[0], hapd, msg)
# Ack
req = rx_msg(hapd)
# Unexpected first fragment
# --> EAP-pwd: Unexpected new fragment start when previous fragment is still in use
msg = resp[0:4] + "0009" + resp[8:10] + req[10:12] + "0009" + "34" + "c100ee" + "bb"
tx_msg(dev[0], hapd, msg)
# server continues exchange, so start from scratch for the next step
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Too much data in first fragment
# --> EAP-pwd: Buffer overflow attack detected! (0+2 > 1)
msg = resp[0:4] + "000a" + resp[8:12] + "000a" + "34" + "c10001" + "aabb"
tx_msg(dev[0], hapd, msg)
# EAP-Failure
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Change parameters
# --> EAP-pwd: peer changed parameters
msg = resp[0:20] + "ff" + resp[22:]
tx_msg(dev[0], hapd, msg)
# EAP-Failure
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Too short ID response
# --> EAP-pwd: Invalid ID response
msg = resp[0:4] + "000a" + resp[8:12] + "000a" + "34" + "01ffeeddcc"
tx_msg(dev[0], hapd, msg)
# server continues exchange, so start from scratch for the next step
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
# EAP-pwd-Identity/Response
resp = rx_msg(dev[0])
tx_msg(dev[0], hapd, resp)
# EAP-pwd-Commit/Request
req = rx_msg(hapd)
# Unexpected EAP-pwd-Identity/Response
# --> EAP-pwd: Unexpected opcode=1 in state=1
msg = resp[0:10] + req[10:12] + resp[12:]
tx_msg(dev[0], hapd, msg)
# server continues exchange, so start from scratch for the next step
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
proxy_msg(dev[0], hapd) # EAP-pwd-Identity/Response
proxy_msg(hapd, dev[0]) # EAP-pwd-Commit/Request
# EAP-pwd-Commit/Response
resp = rx_msg(dev[0])
# Too short Commit response
# --> EAP-pwd: Unexpected Commit payload length 4 (expected 96)
msg = resp[0:4] + "000a" + resp[8:12] + "000a" + "34" + "02ffeeddcc"
tx_msg(dev[0], hapd, msg)
# EAP-Failure
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
proxy_msg(dev[0], hapd) # EAP-pwd-Identity/Response
proxy_msg(hapd, dev[0]) # EAP-pwd-Commit/Request
proxy_msg(dev[0], hapd) # EAP-pwd-Commit/Response
proxy_msg(hapd, dev[0]) # EAP-pwd-Confirm/Request
# EAP-pwd-Confirm/Response
resp = rx_msg(dev[0])
# Too short Confirm response
# --> EAP-pwd: Unexpected Confirm payload length 4 (expected 32)
msg = resp[0:4] + "000a" + resp[8:12] + "000a" + "34" + "03ffeeddcc"
tx_msg(dev[0], hapd, msg)
# EAP-Failure
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
start_pwd_assoc(dev[0], hapd)
resp = rx_msg(dev[0])
# Set M=1
# --> EAP-pwd: No buffer for reassembly
msg = resp[0:18] + "41" + resp[20:]
tx_msg(dev[0], hapd, msg)
# EAP-Failure
rx_msg(hapd)
stop_pwd_assoc(dev[0], hapd)
def test_eap_proto_erp(dev, apdev):
"""ERP protocol tests"""
check_erp_capa(dev[0])