Accumulative patch from commit dc013f1e37df3462085cf01a13f0c432f146ad7a

Author: Jouni Malinen <jouni@qca.qualcomm.com>
Date:   Tue Jan 15 12:03:29 2013 +0200
    eapol_test: Remove unnecessary header file inclusion

 - P2P: Send P2P-FIND-STOPPED event in the new continue-search states
 - P2P: Add some more details on Service Query TLV format
 - P2P: Use the same Dialog Token value for every GO Negotiation retry
 - P2P: Publish more connected clients info in Probe Response frames
 - P2P: Fix some memory leaks in p2p_add_device()
 - P2P: Use the same Dialog Token value for every PD retry
 - P2P: Document operating channel selection functions
 - P2P: Always re-select operating channel if not hard coded
 - P2P: Do not allow re-selection of GO channel if forced_freq in use
 - P2P: Set FORCE_FREQ flag as part of p2p_prepare_channel()
 - P2P: Share a single function for GO channel selection
 - P2P: Prefer operating channels where HT40 is possible
 - P2P: Be more careful with wpa_config_update_psk() call
 - P2P: Allow PSK to be used instead of passphrase for persistent GO
 - P2P: Consider age for the P2P scan results
 - Move some P2P offchannel operations to offchannel.c
 - P2P: Add more complete description of p2p_cancel
 - P2P: Allow p2p_cancel to be used to stop p2p_connect-join operation
 - Interworking changes
 - WNM changes
 - WPS changes
 - SAE changes

Change-Id: I38b847d3460066cc58aecbcf67266bfcff1d344e
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/README-P2P b/wpa_supplicant/README-P2P
index 4abc2f2..fb99c7b 100644
--- a/wpa_supplicant/README-P2P
+++ b/wpa_supplicant/README-P2P
@@ -191,7 +191,13 @@
 
 p2p_cancel
 
-Cancel an ongoing P2P group formation related operation.
+Cancel an ongoing P2P group formation and joining-a-group related
+operation. This operations unauthorizes the specific peer device (if any
+had been authorized to start group formation), stops P2P find (if in
+progress), stops pending operations for join-a-group, and removes the
+P2P group interface (if one was used) that is in the WPS provisioning
+step. If the WPS provisioning step has been completed, the group is not
+terminated.
 
 Service Discovery
 
@@ -219,6 +225,19 @@
 will be automatically removed when the specified peer has replied to
 it.
 
+Service Query TLV has following format:
+Length (2 octets, little endian) - length of following data
+Service Protocol Type (1 octet) - see the table below
+Service Transaction ID (1 octet) - nonzero identifier for the TLV
+Query Data (Length - 2 octets of data) - service protocol specific data
+
+Service Protocol Types:
+0 = All service protocols
+1 = Bonjour
+2 = UPnP
+3 = WS-Discovery
+4 = Wi-Fi Display
+
 For UPnP, an alternative command format can be used to specify a
 single query TLV (i.e., a service discovery for a specific UPnP
 service):