Cumulative patch from commit 12c1fdf19a721aaf29e1c77d63445c7f5b8c61c0

12c1fdf P2P: Update peer listen channel from Probe Request frames
a805731 P2P: Abort ongoing scan when p2p_find is stopped
7441698 nl80211: Abort an ongoing scan upon scan timeout indication
1446afc wpa_supplicant: Handle EVENT_SCAN_RESULTS when an interface is disabled
d14e63a WNM: Do not scan based on malformed BSS Transition Management Request
f420577 WNM: Fix candidates count in BSS Transition Management Request
3c58df7 wpa_cli: Support running action script on global control interface
b8f02d8 EAP-PWD peer: Fix possible memory leak on error path
8f38eed Android: Remove superfluous OpenSSL include paths
cbf8d18 HS 2.0R2: Clear fetch_anqp_in_progress if fopen fails
4a6e9e5 Fix CONFIG_WPA_TRACE=y compilation without CONFIG_WPA_TRACE_BFD=y
2bf9a53 Add EAP-AKA' and EAP-pwd to wpa_supplicant README
4196c08 Update notes about OpenSSL versions
5d7b1a3 Fix some typos in wpa_supplicant README files
4194fee README-P2P: Fix a typo
c58eed6 P2P: Add Dev Info attribute to Probe Request frames in 60 GHz
2b6e9f9 wpa_supplicant: Expose wpas_get_bands() and related API
94ad3c3 P2P: Change order of P2P IE and frequencies set up
61697c7 Android: Allow wpa_supplicant to write files to osu-info dir
0147afa FST: Enlarge State Transition Timeout (STT)
e1d00d4 Add error handling for offloaded ACS with vendor command failures
bef5e9a Fix scan rescheduling from wpas_stop_pno to check postponed case
b9ca12a nl80211: Add more address fields into RX frame debug message
debde14 RADIUS: Add Acct-Delay-Time into accounting messages
669b532 RADIUS: Update full message for interim accounting updates
251953b Document nas_identifier requirements for RADIUS accounting
902c07a Replace hostapd_mac_comp_empty() with is_zero_ether_addr()
5aef495 VLAN: Avoid use of libnl cache
732b1d2 nl80211: Clean up ifidx properly if interface in a bridge is removed
170c545 FT: Check destination MAC address on RRB receive
57b2c91 RADIUS: Allow RADIUS server to provide PSK instead of passphrase
d8912fd Cache hashed passphrase in RADIUS-based PSK delivery
f8e09bc Defer passphrase-to-PSK hashing out of 802.11 authentication ACL check
cc9c805 VLAN: Use stack instead of heap allocation for new interface name
d48d1b8 FT: Use BSSID as r1_key_holder if no value is configured
71456db FT: Check hapd->wpa_auth before RRB internal delivery
0270bde FT: Fix R0KH-R1KH protocol data length values
96a26ab P2P: Support dedicated P2P_DEVICE without separate group interface
ba307f8 P2P: Add a separate pointer to the P2P Device instance
e040197 GAS client: Make PMF check on RX more consistent
0645492 WNM: Optimize a single BSS transition management candidate scan
eb20cea nl80211: Add an option to specify the BSSID to scan for
adf0478 AP: Store STA supported operating classes information

Change-Id: If0ce28aae5591be783c38e5b60f7f9ff0fb9f8f2
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf
index d535eec..3d5c5e2 100644
--- a/hostapd/hostapd.conf
+++ b/hostapd/hostapd.conf
@@ -909,11 +909,23 @@
 # The own IP address of the access point (used as NAS-IP-Address)
 own_ip_addr=127.0.0.1
 
-# Optional NAS-Identifier string for RADIUS messages. When used, this should be
-# a unique to the NAS within the scope of the RADIUS server. For example, a
-# fully qualified domain name can be used here.
+# NAS-Identifier string for RADIUS messages. When used, this should be unique
+# to the NAS within the scope of the RADIUS server. Please note that hostapd
+# uses a separate RADIUS client for each BSS and as such, a unique
+# nas_identifier value should be configured separately for each BSS. This is
+# particularly important for cases where RADIUS accounting is used
+# (Accounting-On/Off messages are interpreted as clearing all ongoing sessions
+# and that may get interpreted as applying to all BSSes if the same
+# NAS-Identifier value is used.) For example, a fully qualified domain name
+# prefixed with a unique identifier of the BSS (e.g., BSSID) can be used here.
+#
 # When using IEEE 802.11r, nas_identifier must be set and must be between 1 and
 # 48 octets long.
+#
+# It is mandatory to configure either own_ip_addr or nas_identifier to be
+# compliant with the RADIUS protocol. When using RADIUS accounting, it is
+# strongly recommended that nas_identifier is set to a unique value for each
+# BSS.
 #nas_identifier=ap.example.com
 
 # RADIUS client forced local IP address for the access point
@@ -1260,6 +1272,7 @@
 
 # PMK-R1 Key Holder identifier (dot11FTR1KeyHolderID)
 # 6-octet identifier as a hex string.
+# Defaults to BSSID.
 #r1_key_holder=000102030405
 
 # Reassociation deadline in time units (TUs / 1.024 ms; range 1000..65535)