ChangeLog for wpa_supplicant

2019-08-07 - v2.9
	* SAE changes
	  - disable use of groups using Brainpool curves
	  - improved protection against side channel attacks
	  [https://w1.fi/security/2019-6/]
	* EAP-pwd changes
	  - disable use of groups using Brainpool curves
	  - allow the set of groups to be configured (eap_pwd_groups)
	  - improved protection against side channel attacks
	  [https://w1.fi/security/2019-6/]
	* fixed FT-EAP initial mobility domain association using PMKSA caching
	  (disabled by default for backwards compatibility; can be enabled
	  with ft_eap_pmksa_caching=1)
	* fixed a regression in OpenSSL 1.1+ engine loading
	* added validation of RSNE in (Re)Association Response frames
	* fixed DPP bootstrapping URI parser of channel list
	* extended EAP-SIM/AKA fast re-authentication to allow use with FILS
	* extended ca_cert_blob to support PEM format
	* improved robustness of P2P Action frame scheduling
	* added support for EAP-SIM/AKA using anonymous@realm identity
	* fixed Hotspot 2.0 credential selection based on roaming consortium
	  to ignore credentials without a specific EAP method
	* added experimental support for EAP-TEAP peer (RFC 7170)
	* added experimental support for EAP-TLS peer with TLS v1.3
	* fixed a regression in WMM parameter configuration for a TDLS peer
	* fixed a regression in operation with drivers that offload 802.1X
	  4-way handshake
	* fixed an ECDH operation corner case with OpenSSL

2019-04-21 - v2.8
	* SAE changes
	  - added support for SAE Password Identifier
	  - changed default configuration to enable only groups 19, 20, 21
	    (i.e., disable groups 25 and 26) and disable all unsuitable groups
	    completely based on REVmd changes
	  - do not regenerate PWE unnecessarily when the AP uses the
	    anti-clogging token mechanisms
	  - fixed some association cases where both SAE and FT-SAE were enabled
	    on both the station and the selected AP
	  - started to prefer FT-SAE over SAE AKM if both are enabled
	  - started to prefer FT-SAE over FT-PSK if both are enabled
	  - fixed FT-SAE when SAE PMKSA caching is used
	  - reject use of unsuitable groups based on new implementation guidance
	    in REVmd (allow only FFC groups with prime >= 3072 bits and ECC
	    groups with prime >= 256)
	  - minimize timing and memory use differences in PWE derivation
	    [https://w1.fi/security/2019-1/] (CVE-2019-9494)
	* EAP-pwd changes
	  - minimize timing and memory use differences in PWE derivation
	    [https://w1.fi/security/2019-2/] (CVE-2019-9495)
	  - verify server scalar/element
	    [https://w1.fi/security/2019-4/] (CVE-2019-9499)
	  - fix message reassembly issue with unexpected fragment
	    [https://w1.fi/security/2019-5/]
	  - enforce rand,mask generation rules more strictly
	  - fix a memory leak in PWE derivation
	  - disallow ECC groups with a prime under 256 bits (groups 25, 26, and
	    27)
	* fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
	* Hotspot 2.0 changes
	  - do not indicate release number that is higher than the one
	    AP supports
	  - added support for release number 3
	  - enable PMF automatically for network profiles created from
	    credentials
	* fixed OWE network profile saving
	* fixed DPP network profile saving
	* added support for RSN operating channel validation
	  (CONFIG_OCV=y and network profile parameter ocv=1)
	* added Multi-AP backhaul STA support
	* fixed build with LibreSSL
	* number of MKA/MACsec fixes and extensions
	* extended domain_match and domain_suffix_match to allow list of values
	* fixed dNSName matching in domain_match and domain_suffix_match when
	  using wolfSSL
	* started to prefer FT-EAP-SHA384 over WPA-EAP-SUITE-B-192 AKM if both
	  are enabled
	* extended nl80211 Connect and external authentication to support
	  SAE, FT-SAE, FT-EAP-SHA384
	* fixed KEK2 derivation for FILS+FT
	* extended client_cert file to allow loading of a chain of PEM
	  encoded certificates
	* extended beacon reporting functionality
	* extended D-Bus interface with number of new properties
	* fixed a regression in FT-over-DS with mac80211-based drivers
	* OpenSSL: allow systemwide policies to be overridden
	* extended driver flags indication for separate 802.1X and PSK
	  4-way handshake offload capability
	* added support for random P2P Device/Interface Address use
	* extended PEAP to derive EMSK to enable use with ERP/FILS
	* extended WPS to allow SAE configuration to be added automatically
	  for PSK (wps_cred_add_sae=1)
	* removed support for the old D-Bus interface (CONFIG_CTRL_IFACE_DBUS)
	* extended domain_match and domain_suffix_match to allow list of values
	* added a RSN workaround for misbehaving PMF APs that advertise
	  IGTK/BIP KeyID using incorrect byte order
	* fixed PTK rekeying with FILS and FT

2018-12-02 - v2.7
	* fixed WPA packet number reuse with replayed messages and key
	  reinstallation
	  [https://w1.fi/security/2017-1/] (CVE-2017-13077, CVE-2017-13078,
	  CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082,
	  CVE-2017-13086, CVE-2017-13087, CVE-2017-13088)
	* fixed unauthenticated EAPOL-Key decryption in wpa_supplicant
	  [https://w1.fi/security/2018-1/] (CVE-2018-14526)
	* added support for FILS (IEEE 802.11ai) shared key authentication
	* added support for OWE (Opportunistic Wireless Encryption, RFC 8110;
	  and transition mode defined by WFA)
	* added support for DPP (Wi-Fi Device Provisioning Protocol)
	* added support for RSA 3k key case with Suite B 192-bit level
	* fixed Suite B PMKSA caching not to update PMKID during each 4-way
	  handshake
	* fixed EAP-pwd pre-processing with PasswordHashHash
	* added EAP-pwd client support for salted passwords
	* fixed a regression in TDLS prohibited bit validation
	* started to use estimated throughput to avoid undesired signal
	  strength based roaming decision
	* MACsec/MKA:
	  - new macsec_linux driver interface support for the Linux
	    kernel macsec module
	  - number of fixes and extensions
	* added support for external persistent storage of PMKSA cache
	  (PMKSA_GET/PMKSA_ADD control interface commands; and
	   MESH_PMKSA_GET/MESH_PMKSA_SET for the mesh case)
	* fixed mesh channel configuration pri/sec switch case
	* added support for beacon report
	* large number of other fixes, cleanup, and extensions
	* added support for randomizing local address for GAS queries
	  (gas_rand_mac_addr parameter)
	* fixed EAP-SIM/AKA/AKA' ext auth cases within TLS tunnel
	* added option for using random WPS UUID (auto_uuid=1)
	* added SHA256-hash support for OCSP certificate matching
	* fixed EAP-AKA' to add AT_KDF into Synchronization-Failure
	* fixed a regression in RSN pre-authentication candidate selection
	* added option to configure allowed group management cipher suites
	  (group_mgmt network profile parameter)
	* removed all PeerKey functionality
	* fixed nl80211 AP and mesh mode configuration regression with
	  Linux 4.15 and newer
	* added ap_isolate configuration option for AP mode
	* added support for nl80211 to offload 4-way handshake into the driver
	* added support for using wolfSSL cryptographic library
	* SAE
	  - added support for configuring SAE password separately of the
	    WPA2 PSK/passphrase
	  - fixed PTK and EAPOL-Key integrity and key-wrap algorithm selection
	    for SAE;
	    note: this is not backwards compatible, i.e., both the AP and
	    station side implementations will need to be update at the same
	    time to maintain interoperability
	  - added support for Password Identifier
	  - fixed FT-SAE PMKID matching
	* Hotspot 2.0
	  - added support for fetching of Operator Icon Metadata ANQP-element
	  - added support for Roaming Consortium Selection element
	  - added support for Terms and Conditions
	  - added support for OSEN connection in a shared RSN BSS
	  - added support for fetching Venue URL information
	* added support for using OpenSSL 1.1.1
	* FT
	  - disabled PMKSA caching with FT since it is not fully functional
	  - added support for SHA384 based AKM
	  - added support for BIP ciphers BIP-CMAC-256, BIP-GMAC-128,
	    BIP-GMAC-256 in addition to previously supported BIP-CMAC-128
	  - fixed additional IE inclusion in Reassociation Request frame when
	    using FT protocol

2016-10-02 - v2.6
	* fixed WNM Sleep Mode processing when PMF is not enabled
	  [http://w1.fi/security/2015-6/] (CVE-2015-5310)
	* fixed EAP-pwd last fragment validation
	  [http://w1.fi/security/2015-7/] (CVE-2015-5315)
	* fixed EAP-pwd unexpected Confirm message processing
	  [http://w1.fi/security/2015-8/] (CVE-2015-5316)
	* fixed WPS configuration update vulnerability with malformed passphrase
	  [http://w1.fi/security/2016-1/] (CVE-2016-4476)
	* fixed configuration update vulnerability with malformed parameters set
	  over the local control interface
	  [http://w1.fi/security/2016-1/] (CVE-2016-4477)
	* fixed TK configuration to the driver in EAPOL-Key 3/4 retry case
	* extended channel switch support for P2P GO
	* started to throttle control interface event message bursts to avoid
	  issues with monitor sockets running out of buffer space
	* mesh mode fixes/improvements
	  - generate proper AID for peer
	  - enable WMM by default
	  - add VHT support
	  - fix PMKID derivation
	  - improve robustness on various exchanges
	  - fix peer link counting in reconnect case
	  - improve mesh joining behavior
	  - allow DTIM period to be configured
	  - allow HT to be disabled (disable_ht=1)
	  - add MESH_PEER_ADD and MESH_PEER_REMOVE commands
	  - add support for PMKSA caching
	  - add minimal support for SAE group negotiation
	  - allow pairwise/group cipher to be configured in the network profile
	  - use ieee80211w profile parameter to enable/disable PMF and derive
	    a separate TX IGTK if PMF is enabled instead of using MGTK
	    incorrectly
	  - fix AEK and MTK derivation
	  - remove GTKdata and IGTKdata from Mesh Peering Confirm/Close
	  - note: these changes are not fully backwards compatible for secure
	    (RSN) mesh network
	* fixed PMKID derivation with SAE
	* added support for requesting and fetching arbitrary ANQP-elements
	  without internal support in wpa_supplicant for the specific element
	  (anqp[265]=<hexdump> in "BSS <BSSID>" command output)
	* P2P
	  - filter control characters in group client device names to be
	    consistent with other P2P peer cases
	  - support VHT 80+80 MHz and 160 MHz
	  - indicate group completion in P2P Client role after data association
	    instead of already after the WPS provisioning step
	  - improve group-join operation to use SSID, if known, to filter BSS
	    entries
	  - added optional ssid=<hexdump> argument to P2P_CONNECT for join case
	  - added P2P_GROUP_MEMBER command to fetch client interface address
	* P2PS
	  - fix follow-on PD Response behavior
	  - fix PD Response generation for unknown peer
	  - fix persistent group reporting
	  - add channel policy to PD Request
	  - add group SSID to the P2PS-PROV-DONE event
	  - allow "P2P_CONNECT <addr> p2ps" to be used without specifying the
	    default PIN
	* BoringSSL
	  - support for OCSP stapling
	  - support building of h20-osu-client
	* D-Bus
	  - add ExpectDisconnect()
	  - add global config parameters as properties
	  - add SaveConfig()
	  - add VendorElemAdd(), VendorElemGet(), VendorElemRem()
	* fixed Suite B 192-bit AKM to use proper PMK length
	  (note: this makes old releases incompatible with the fixed behavior)
	* improved PMF behavior for cases where the AP and STA has different
	  configuration by not trying to connect in some corner cases where the
	  connection cannot succeed
	* added option to reopen debug log (e.g., to rotate the file) upon
	  receipt of SIGHUP signal
	* EAP-pwd: added support for Brainpool Elliptic Curves
	  (with OpenSSL 1.0.2 and newer)
	* fixed EAPOL reauthentication after FT protocol run
	* fixed FTIE generation for 4-way handshake after FT protocol run
	* extended INTERFACE_ADD command to allow certain type (sta/ap)
	  interface to be created
	* fixed and improved various FST operations
	* added 80+80 MHz and 160 MHz VHT support for IBSS/mesh
	* fixed SIGNAL_POLL in IBSS and mesh cases
	* added an option to abort an ongoing scan (used to speed up connection
	  and can also be done with the new ABORT_SCAN command)
	* TLS client
	  - do not verify CA certificates when ca_cert is not specified
	  - support validating server certificate hash
	  - support SHA384 and SHA512 hashes
	  - add signature_algorithms extension into ClientHello
	  - support TLS v1.2 signature algorithm with SHA384 and SHA512
	  - support server certificate probing
	  - allow specific TLS versions to be disabled with phase2 parameter
	  - support extKeyUsage
	  - support PKCS #5 v2.0 PBES2
	  - support PKCS #5 with PKCS #12 style key decryption
	  - minimal support for PKCS #12
	  - support OCSP stapling (including ocsp_multi)
	* OpenSSL
	  - support OpenSSL 1.1 API changes
	  - drop support for OpenSSL 0.9.8
	  - drop support for OpenSSL 1.0.0
	* added support for multiple schedule scan plans (sched_scan_plans)
	* added support for external server certificate chain validation
	  (tls_ext_cert_check=1 in the network profile phase1 parameter)
	* made phase2 parser more strict about correct use of auth=<val> and
	  autheap=<val> values
	* improved GAS offchannel operations with comeback request
	* added SIGNAL_MONITOR command to request signal strength monitoring
	  events
	* added command for retrieving HS 2.0 icons with in-memory storage
	  (REQ_HS20_ICON, GET_HS20_ICON, DEL_HS20_ICON commands and
	  RX-HS20-ICON event)
	* enabled ACS support for AP mode operations with wpa_supplicant
	* EAP-PEAP: fixed interoperability issue with Windows 2012r2 server
	  ("Invalid Compound_MAC in cryptobinding TLV")
	* EAP-TTLS: fixed success after fragmented final Phase 2 message
	* VHT: added interoperability workaround for 80+80 and 160 MHz channels
	* WNM: workaround for broken AP operating class behavior
	* added kqueue(2) support for eloop (CONFIG_ELOOP_KQUEUE)
	* nl80211:
	  - add support for full station state operations
	  - do not add NL80211_ATTR_SMPS_MODE attribute if HT is disabled
	  - add NL80211_ATTR_PREV_BSSID with Connect command
	  - fix IEEE 802.1X/WEP EAP reauthentication and rekeying to use
	    unencrypted EAPOL frames
	* added initial MBO support; number of extensions to WNM BSS Transition
	  Management
	* added support for PBSS/PCP and P2P on 60 GHz
	* Interworking: add credential realm to EAP-TLS identity
	* fixed EAPOL-Key Request Secure bit to be 1 if PTK is set
	* HS 2.0: add support for configuring frame filters
	* added POLL_STA command to check connectivity in AP mode
	* added initial functionality for location related operations
	* started to ignore pmf=1/2 parameter for non-RSN networks
	* added wps_disabled=1 network profile parameter to allow AP mode to
	  be started without enabling WPS
	* wpa_cli: added action script support for AP-ENABLED and AP-DISABLED
	  events
	* improved Public Action frame addressing
	  - add gas_address3 configuration parameter to control Address 3
	    behavior
	* number of small fixes

2015-09-27 - v2.5
	* fixed P2P validation of SSID element length before copying it
	  [http://w1.fi/security/2015-1/] (CVE-2015-1863)
	* fixed WPS UPnP vulnerability with HTTP chunked transfer encoding
	  [http://w1.fi/security/2015-2/] (CVE-2015-4141)
	* fixed WMM Action frame parser (AP mode)
	  [http://w1.fi/security/2015-3/] (CVE-2015-4142)
	* fixed EAP-pwd peer missing payload length validation
	  [http://w1.fi/security/2015-4/]
	  (CVE-2015-4143, CVE-2015-4144, CVE-2015-4145, CVE-2015-4146)
	* fixed validation of WPS and P2P NFC NDEF record payload length
	  [http://w1.fi/security/2015-5/]
	* nl80211:
	  - added VHT configuration for IBSS
	  - fixed vendor command handling to check OUI properly
	  - allow driver-based roaming to change ESS
	* added AVG_BEACON_RSSI to SIGNAL_POLL output
	* wpa_cli: added tab completion for number of commands
	* removed unmaintained and not yet completed SChannel/CryptoAPI support
	* modified Extended Capabilities element use in Probe Request frames to
	  include all cases if any of the values are non-zero
	* added support for dynamically creating/removing a virtual interface
	  with interface_add/interface_remove
	* added support for hashed password (NtHash) in EAP-pwd peer
	* added support for memory-only PSK/passphrase (mem_only_psk=1 and
	  CTRL-REQ/RSP-PSK_PASSPHRASE)
	* P2P
	  - optimize scan frequencies list when re-joining a persistent group
	  - fixed number of sequences with nl80211 P2P Device interface
	  - added operating class 125 for P2P use cases (this allows 5 GHz
	    channels 161 and 169 to be used if they are enabled in the current
	    regulatory domain)
	  - number of fixes to P2PS functionality
	  - do not allow 40 MHz co-ex PRI/SEC switch to force MCC
	  - extended support for preferred channel listing
	* D-Bus:
	  - fixed WPS property of fi.w1.wpa_supplicant1.BSS interface
	  - fixed PresenceRequest to use group interface
	  - added new signals: FindStopped, WPS pbc-overlap,
	    GroupFormationFailure, WPS timeout, InvitationReceived
	  - added new methods: WPS Cancel, P2P Cancel, Reconnect, RemoveClient
	  - added manufacturer info
	* added EAP-EKE peer support for deriving Session-Id
	* added wps_priority configuration parameter to set the default priority
	  for all network profiles added by WPS
	* added support to request a scan with specific SSIDs with the SCAN
	  command (optional "ssid <hexdump>" arguments)
	* removed support for WEP40/WEP104 as a group cipher with WPA/WPA2
	* fixed SAE group selection in an error case
	* modified SAE routines to be more robust and PWE generation to be
	  stronger against timing attacks
	* added support for Brainpool Elliptic Curves with SAE
	* added support for CCMP-256 and GCMP-256 as group ciphers with FT
	* fixed BSS selection based on estimated throughput
	* added option to disable TLSv1.0 with OpenSSL
	  (phase1="tls_disable_tlsv1_0=1")
	* added Fast Session Transfer (FST) module
	* fixed OpenSSL PKCS#12 extra certificate handling
	* fixed key derivation for Suite B 192-bit AKM (this breaks
	  compatibility with the earlier version)
	* added RSN IE to Mesh Peering Open/Confirm frames
	* number of small fixes

2015-03-15 - v2.4
	* allow OpenSSL cipher configuration to be set for internal EAP server
	  (openssl_ciphers parameter)
	* fixed number of small issues based on hwsim test case failures and
	  static analyzer reports
	* P2P:
	  - add new=<0/1> flag to P2P-DEVICE-FOUND events
	  - add passive channels in invitation response from P2P Client
	  - enable nl80211 P2P_DEVICE support by default
	  - fix regresssion in disallow_freq preventing search on social
	    channels
	  - fix regressions in P2P SD query processing
	  - try to re-invite with social operating channel if no common channels
	    in invitation
	  - allow cross connection on parent interface (this fixes number of
	    use cases with nl80211)
	  - add support for P2P services (P2PS)
	  - add p2p_go_ctwindow configuration parameter to allow GO CTWindow to
	    be configured
	* increase postponing of EAPOL-Start by one second with AP/GO that
	  supports WPS 2.0 (this makes it less likely to trigger extra roundtrip
	  of identity frames)
	* add support for PMKSA caching with SAE
	* add support for control mesh BSS (IEEE 802.11s) operations
	* fixed number of issues with D-Bus P2P commands
	* fixed regression in ap_scan=2 special case for WPS
	* fixed macsec_validate configuration
	* add a workaround for incorrectly behaving APs that try to use
	  EAPOL-Key descriptor version 3 when the station supports PMF even if
	  PMF is not enabled on the AP
	* allow TLS v1.1 and v1.2 to be negotiated by default; previous behavior
	  of disabling these can be configured to work around issues with broken
	  servers with phase1="tls_disable_tlsv1_1=1 tls_disable_tlsv1_2=1"
	* add support for Suite B (128-bit and 192-bit level) key management and
	  cipher suites
	* add WMM-AC support (WMM_AC_ADDTS/WMM_AC_DELTS)
	* improved BSS Transition Management processing
	* add support for neighbor report
	* add support for link measurement
	* fixed expiration of BSS entry with all-zeros BSSID
	* add optional LAST_ID=x argument to LIST_NETWORK to allow all
	  configured networks to be listed even with huge number of network
	  profiles
	* add support for EAP Re-Authentication Protocol (ERP)
	* fixed EAP-IKEv2 fragmentation reassembly
	* improved PKCS#11 configuration for OpenSSL
	* set stdout to be line-buffered
	* add TDLS channel switch configuration
	* add support for MAC address randomization in scans with nl80211
	* enable HT for IBSS if supported by the driver
	* add BSSID black and white lists (bssid_blacklist, bssid_whitelist)
	* add support for domain_suffix_match with GnuTLS
	* add OCSP stapling client support with GnuTLS
	* include peer certificate in EAP events even without a separate probe
	  operation; old behavior can be restored with cert_in_cb=0
	* add peer ceritficate alt subject name to EAP events
	  (CTRL-EVENT-EAP-PEER-ALT)
	* add domain_match network profile parameter (similar to
	  domain_suffix_match, but full match is required)
	* enable AP/GO mode HT Tx STBC automatically based on driver support
	* add ANQP-QUERY-DONE event to provide information on ANQP parsing
	  status
	* allow passive scanning to be forced with passive_scan=1
	* add a workaround for Linux packet socket behavior when interface is in
	  bridge
	* increase 5 GHz band preference in BSS selection (estimate SNR, if info
	  not available from driver; estimate maximum throughput based on common
	  HT/VHT/specific TX rate support)
	* add INTERWORKING_ADD_NETWORK ctrl_iface command; this can be used to
	  implement Interworking network selection behavior in upper layers
	  software components
	* add optional reassoc_same_bss_optim=1 (disabled by default)
	  optimization to avoid unnecessary Authentication frame exchange
	* extend TDLS frame padding workaround to cover all packets
	* allow wpa_supplicant to recover nl80211 functionality if the cfg80211
	  module gets removed and reloaded without restarting wpa_supplicant
	* allow hostapd DFS implementation to be used in wpa_supplicant AP mode

2014-10-09 - v2.3
	* fixed number of minor issues identified in static analyzer warnings
	* fixed wfd_dev_info to be more careful and not read beyond the buffer
	  when parsing invalid information for P2P-DEVICE-FOUND
	* extended P2P and GAS query operations to support drivers that have
	  maximum remain-on-channel time below 1000 ms (500 ms is the current
	  minimum supported value)
	* added p2p_search_delay parameter to make the default p2p_find delay
	  configurable
	* improved P2P operating channel selection for various multi-channel
	  concurrency cases
	* fixed some TDLS failure cases to clean up driver state
	* fixed dynamic interface addition cases with nl80211 to avoid adding
	  ifindex values to incorrect interface to skip foreign interface events
	  properly
	* added TDLS workaround for some APs that may add extra data to the
	  end of a short frame
	* fixed EAP-AKA' message parser with multiple AT_KDF attributes
	* added configuration option (p2p_passphrase_len) to allow longer
	  passphrases to be generated for P2P groups
	* fixed IBSS channel configuration in some corner cases
	* improved HT/VHT/QoS parameter setup for TDLS
	* modified D-Bus interface for P2P peers/groups
	* started to use constant time comparison for various password and hash
	  values to reduce possibility of any externally measurable timing
	  differences
	* extended explicit clearing of freed memory and expired keys to avoid
	  keeping private data in memory longer than necessary
	* added optional scan_id parameter to the SCAN command to allow manual
	  scan requests for active scans for specific configured SSIDs
	* fixed CTRL-EVENT-REGDOM-CHANGE event init parameter value
	* added option to set Hotspot 2.0 Rel 2 update_identifier in network
	  configuration to support external configuration
	* modified Android PNO functionality to send Probe Request frames only
	  for hidden SSIDs (based on scan_ssid=1)
	* added generic mechanism for adding vendor elements into frames at
	  runtime (VENDOR_ELEM_ADD, VENDOR_ELEM_GET, VENDOR_ELEM_REMOVE)
	* added fields to show unrecognized vendor elements in P2P_PEER
	* removed EAP-TTLS/MSCHAPv2 interoperability workaround so that
	  MS-CHAP2-Success is required to be present regardless of
	  eap_workaround configuration
	* modified EAP fast session resumption to allow results to be used only
	  with the same network block that generated them
	* extended freq_list configuration to apply for sched_scan as well as
	  normal scan
	* modified WPS to merge mixed-WPA/WPA2 credentials from a single session
	* fixed nl80211/RTM_DELLINK processing when a P2P GO interface is
	  removed from a bridge
	* fixed number of small P2P issues to make negotiations more robust in
	  corner cases
	* added experimental support for using temporary, random local MAC
	  address (mac_addr and preassoc_mac_addr parameters); this is disabled
	  by default (i.e., previous behavior of using permanent address is
	  maintained if configuration is not changed)
	* added D-Bus interface for setting/clearing WFD IEs
	* fixed TDLS AID configuration for VHT
	* modified -m<conf> configuration file to be used only for the P2P
	  non-netdev management device and do not load this for the default
	  station interface or load the station interface configuration for
	  the P2P management interface
	* fixed external MAC address changes while wpa_supplicant is running
	* started to enable HT (if supported by the driver) for IBSS
	* fixed wpa_cli action script execution to use more robust mechanism
	  (CVE-2014-3686)

2014-06-04 - v2.2
	* added DFS indicator to get_capability freq
	* added/fixed nl80211 functionality
	  - BSSID/frequency hint for driver-based BSS selection
	  - fix tearing down WDS STA interfaces
	  - support vendor specific driver command
	    (VENDOR <vendor id> <sub command id> [<hex formatted data>])
	  - GO interface teardown optimization
	  - allow beacon interval to be configured for IBSS
	  - add SHA256-based AKM suites to CONNECT/ASSOCIATE commands
	* removed unused NFC_RX_HANDOVER_REQ and NFC_RX_HANDOVER_SEL control
	  interface commands (the more generic NFC_REPORT_HANDOVER is now used)
	* fixed MSCHAP UTF-8 to UCS-2 conversion for three-byte encoding;
	  this fixes password with include UTF-8 characters that use
	  three-byte encoding EAP methods that use NtPasswordHash
	* fixed couple of sequencies where radio work items could get stuck,
	  e.g., when rfkill blocking happens during scanning or when
	  scan-for-auth workaround is used
	* P2P enhancements/fixes
	  - enable enable U-APSD on GO automatically if the driver indicates
	    support for this
	  - fixed some service discovery cases with broadcast queries not being
	    sent to all stations
	  - fixed Probe Request frame triggering invitation to trigger only a
	    single invitation instance even if multiple Probe Request frames are
	    received
	  - fixed a potential NULL pointer dereference crash when processing an
	    invalid Invitation Request frame
	  - add optional configuration file for the P2P_DEVICE parameters
	  - optimize scan for GO during persistent group invocation
	  - fix possible segmentation fault when PBC overlap is detected while
	    using a separate P2P group interface
	  - improve GO Negotiation robustness by allowing GO Negotiation
	    Confirmation to be retransmitted
	  - do use freed memory on device found event when P2P NFC
	* added phase1 network parameter options for disabling TLS v1.1 and v1.2
	  to allow workarounds with misbehaving AAA servers
	  (tls_disable_tlsv1_1=1 and tls_disable_tlsv1_2=1)
	* added support for OCSP stapling to validate AAA server certificate
	  during TLS exchange
	* Interworking/Hotspot 2.0 enhancements
	  - prefer the last added network in Interworking connection to make the
	    behavior more consistent with likely user expectation
	  - roaming partner configuration (roaming_partner within a cred block)
	  - support Hotspot 2.0 Release 2
	    * "hs20_anqp_get <BSSID> 8" to request OSU Providers list
	    * "hs20_icon_request <BSSID> <icon filename>" to request icon files
	    * "fetch_osu" and "cancel_osu_fetch" to start/stop full OSU provider
	      search (all suitable APs in scan results)
	    * OSEN network for online signup connection
	    * min_{dl,ul}_bandwidth_{home,roaming} cred parameters
	    * max_bss_load cred parameter
	    * req_conn_capab cred parameter
	    * sp_priority cred parameter
	    * ocsp cred parameter
	    * slow down automatic connection attempts on EAP failure to meet
	      required behavior (no more than 10 retries within a 10-minute
	      interval)
	    * sample implementation of online signup client (both SPP and
	      OMA-DM protocols) (hs20/client/*)
	  - fixed GAS indication for additional comeback delay with status
	    code 95
	  - extend ANQP_GET to accept Hotspot 2.0 subtypes
	    ANQP_GET <addr> <info id>[,<info id>]...
	    [,hs20:<subtype>][...,hs20:<subtype>]
	  - add control interface events CRED-ADDED <id>,
	    CRED-MODIFIED <id> <field>, CRED-REMOVED <id>
	  - add "GET_CRED <id> <field>" command
	  - enable FT for the connection automatically if the AP advertises
	    support for this
	  - fix a case where auto_interworking=1 could end up stopping scanning
	* fixed TDLS interoperability issues with supported operating class in
	  some deployed stations
	* internal TLS implementation enhancements/fixes
	  - add SHA256-based cipher suites
	  - add DHE-RSA cipher suites
	  - fix X.509 validation of PKCS#1 signature to check for extra data
	* fixed PTK derivation for CCMP-256 and GCMP-256
	* added "reattach" command for fast reassociate-back-to-same-BSS
	* allow PMF to be enabled for AP mode operation with the ieee80211w
	  parameter
	* added "get_capability tdls" command
	* added option to set config blobs through control interface with
	  "SET blob <name> <hexdump>"
	* D-Bus interface extensions/fixes
	  - make p2p_no_group_iface configurable
	  - declare ServiceDiscoveryRequest method properly
	  - export peer's device address as a property
	  - make reassociate command behave like the control interface one,
	    i.e., to allow connection from disconnected state
	* added optional "freq=<channel ranges>" parameter to SET pno
	* added optional "freq=<channel ranges>" parameter to SELECT_NETWORK
	* fixed OBSS scan result processing for 20/40 MHz co-ex report
	* remove WPS 1.0 only support, i.e., WSC 2.0 support is now enabled
	  whenever CONFIG_WPS=y is set
	* fixed regression in parsing of WNM Sleep Mode exit key data
	* fixed potential segmentation fault and memory leaks in WNM neighbor
	  report processing
	* EAP-pwd fixes
	  - fragmentation of PWD-Confirm-Resp
	  - fix memory leak when fragmentation is used
	  - fix possible segmentation fault on EAP method deinit if an invalid
	    group is negotiated
	* added MACsec/IEEE Std 802.1X-2010 PAE implementation (currently
	  available only with the macsec_qca driver wrapper)
	* fixed EAP-SIM counter-too-small message
	* added 'dup_network <id_s> <id_d> <name>' command; this can be used to
	  clone the psk field without having toextract it from wpa_supplicant
	* fixed GSM authentication on USIM
	* added support for usin epoll in eloop (CONFIG_ELOOP_EPOLL=y)
	* fixed some concurrent virtual interface cases with dedicated P2P
	  management interface to not catch events from removed interface (this
	  could result in the management interface getting disabled)
	* fixed a memory leak in SAE random number generation
	* fixed off-by-one bounds checking in printf_encode()
	  - this could result in some control interface ATTACH command cases
	    terminating wpa_supplicant
	* fixed EAPOL-Key exchange when GCMP is used with SHA256-based AKM
	* various bug fixes

2014-02-04 - v2.1
	* added support for simultaneous authentication of equals (SAE) for
	  stronger password-based authentication with WPA2-Personal
	* improved P2P negotiation and group formation robustness
	  - avoid unnecessary Dialog Token value changes during retries
	  - avoid more concurrent scanning cases during full group formation
	    sequence
	  - do not use potentially obsolete scan result data from driver
	    cache for peer discovery/updates
	  - avoid undesired re-starting of GO negotiation based on Probe
	    Request frames
	  - increase GO Negotiation and Invitation timeouts to address busy
	    environments and peers that take long time to react to messages,
	    e.g., due to power saving
	  - P2P Device interface type
	* improved P2P channel selection (use more peer information and allow
	  more local options)
	* added support for optional per-device PSK assignment by P2P GO
	  (wpa_cli p2p_set per_sta_psk <0/1>)
	* added P2P_REMOVE_CLIENT for removing a client from P2P groups
	  (including persistent groups); this can be used to securely remove
	  a client from a group if per-device PSKs are used
	* added more configuration flexibility for allowed P2P GO/client
	  channels (p2p_no_go_freq list and p2p_add_cli_chan=0/1)
	* added nl80211 functionality
	  - VHT configuration for nl80211
	  - MFP (IEEE 802.11w) information for nl80211 command API
	  - support split wiphy dump
	  - FT (IEEE 802.11r) with driver-based SME
	  - use advertised number of supported concurrent channels
	  - QoS Mapping configuration
	* improved TDLS negotiation robustness
	* added more TDLS peer parameters to be configured to the driver
	* optimized connection time by allowing recently received scan results
	  to be used instead of having to run through a new scan
	* fixed ctrl_iface BSS command iteration with RANGE argument and no
	  exact matches; also fixed argument parsing for some cases with
	  multiple arguments
	* added 'SCAN TYPE=ONLY' ctrl_iface command to request manual scan
	  without executing roaming/network re-selection on scan results
	* added Session-Id derivation for EAP peer methods
	* added fully automated regression testing with mac80211_hwsim
	* changed configuration parser to reject invalid integer values
	* allow AP/Enrollee to be specified with BSSID instead of UUID for
	  WPS ER operations
	* disable network block temporarily on repeated connection failures
	* changed the default driver interface from wext to nl80211 if both are
	  included in the build
	* remove duplicate networks if WPS provisioning is run multiple times
	* remove duplicate networks when Interworking network selection uses the
	  same network
	* added global freq_list configuration to allow scan frequencies to be
	  limited for all cases instead of just for a specific network block
	* added support for BSS Transition Management
	* added option to use "IFNAME=<ifname> " prefix to use the global
	  control interface connection to perform per-interface commands;
	  similarly, allow global control interface to be used as a monitor
	  interface to receive events from all interfaces
	* fixed OKC-based PMKSA cache entry clearing
	* fixed TKIP group key configuration with FT
	* added support for using OCSP stapling to validate server certificate
	  (ocsp=1 as optional and ocsp=2 as mandatory)
	* added EAP-EKE peer
	* added peer restart detection for IBSS RSN
	* added domain_suffix_match (and domain_suffix_match2 for Phase 2
	  EAP-TLS) to specify additional constraint for the server certificate
	  domain name
	* added support for external SIM/USIM processing in EAP-SIM, EAP-AKA,
	  and EAP-AKA' (CTRL-REQ-SIM and CTRL-RSP-SIM commands over control
	  interface)
	* added global bgscan configuration option as a default for all network
	  blocks that do not specify their own bgscan parameters
	* added D-Bus methods for TDLS
	* added more control to scan requests
	  - "SCAN freq=<freq list>" can be used to specify which channels are
	    scanned (comma-separated frequency ranges in MHz)
	  - "SCAN passive=1" can be used to request a passive scan (no Probe
	    Request frames are sent)
	  - "SCAN use_id" can be used to request a scan id to be returned and
	    included in event messages related to this specific scan operation
	  - "SCAN only_new=1" can be used to request the driver/cfg80211 to
	    report only BSS entries that have been updated during this scan
	    round
	  - these optional arguments to the SCAN command can be combined with
	    each other
	* modified behavior on externally triggered scans
	  - avoid concurrent operations requiring full control of the radio when
	    an externally triggered scan is detected
	  - do not use results for internal roaming decision
	* added a new cred block parameter 'temporary' to allow credential
	  blocks to be stored separately even if wpa_supplicant configuration
	  file is used to maintain other network information
	* added "radio work" framework to schedule exclusive radio operations
	  for off-channel functionality
	  - reduce issues with concurrent operations that try to control which
	    channel is used
	  - allow external programs to request exclusive radio control in a way
	    that avoids conflicts with wpa_supplicant
	* added support for using Protected Dual of Public Action frames for
	  GAS/ANQP exchanges when associated with PMF
	* added support for WPS+NFC updates and P2P+NFC
	  - improved protocol for WPS
	  - P2P group formation/join based on NFC connection handover
	  - new IPv4 address assignment for P2P groups (ip_addr_* configuration
	    parameters on the GO) to replace DHCP
	  - option to fetch and report alternative carrier records for external
	    NFC operations
	* various bug fixes

2013-01-12 - v2.0
	* removed Qt3-based wpa_gui (obsoleted by wpa_qui-qt4)
	* removed unmaintained driver wrappers broadcom, iphone, osx, ralink,
	  hostap, madwifi (hostap and madwifi remain available for hostapd;
	  their wpa_supplicant functionality is obsoleted by wext)
	* improved debug logging (human readable event names, interface name
	  included in more entries)
	* changed AP mode behavior to enable WPS only for open and
	  WPA/WPA2-Personal configuration
	* improved P2P concurrency operations
	  - better coordination of concurrent scan and P2P search operations
	  - avoid concurrent remain-on-channel operation requests by canceling
	    previous operations prior to starting a new one
	  - reject operations that would require multi-channel concurrency if
	    the driver does not support it
	  - add parameter to select whether STA or P2P connection is preferred
	    if the driver cannot support both at the same time
	  - allow driver to indicate channel changes
	  - added optional delay=<search delay in milliseconds> parameter for
	    p2p_find to avoid taking all radio resources
	  - use 500 ms p2p_find search delay by default during concurrent
	    operations
	  - allow all channels in GO Negotiation if the driver supports
	    multi-channel concurrency
	* added number of small changes to make it easier for static analyzers
	  to understand the implementation
	* fixed number of small bugs (see git logs for more details)
	* nl80211: number of updates to use new cfg80211/nl80211 functionality
	  - replace monitor interface with nl80211 commands for AP mode
	  - additional information for driver-based AP SME
	  - STA entry authorization in RSN IBSS
	* EAP-pwd:
	  - fixed KDF for group 21 and zero-padding
	  - added support for fragmentation
	  - increased maximum number of hunting-and-pecking iterations
	* avoid excessive Probe Response retries for broadcast Probe Request
	  frames (only with drivers using wpa_supplicant AP mode SME/MLME)
	* added "GET country" ctrl_iface command
	* do not save an invalid network block in wpa_supplicant.conf to avoid
	  problems reading the file on next start
	* send STA connected/disconnected ctrl_iface events to both the P2P
	  group and parent interfaces
	* added preliminary support for using TLS v1.2 (CONFIG_TLSV12=y)
	* added "SET pno <1/0>" ctrl_iface command to start/stop preferred
	  network offload with sched_scan driver command
	* merged in number of changes from Android repository for P2P, nl80211,
	  and build parameters
	* changed P2P GO mode configuration to use driver capabilities to
	  automatically enable HT operations when supported
	* added "wpa_cli status wps" command to fetch WPA2-Personal passhrase
	  for WPS use cases in AP mode
	* EAP-AKA: keep pseudonym identity across EAP exchanges to match EAP-SIM
	  behavior
	* improved reassociation behavior in cases where association is rejected
	  or when an AP disconnects us to handle common load balancing
	  mechanisms
	  - try to avoid extra scans when the needed information is available
	* added optional "join" argument for p2p_prov_disc ctrl_iface command
	* added group ifname to P2P-PROV-DISC-* events
	* added P2P Device Address to AP-STA-DISCONNECTED event and use
	  p2p_dev_addr parameter name with AP-STA-CONNECTED
	* added workarounds for WPS PBC overlap detection for some P2P use cases
	  where deployed stations work incorrectly
	* optimize WPS connection speed by disconnecting prior to WPS scan and
	  by using single channel scans when AP channel is known
	* PCSC and SIM/USIM improvements:
	  - accept 0x67 (Wrong length) as a response to READ RECORD to fix
	    issues with some USIM cards
	  - try to read MNC length from SIM/USIM
	  - build realm according to 3GPP TS 23.003 with identity from the SIM
	  - allow T1 protocol to be enabled
	* added more WPS and P2P information available through D-Bus
	* improve P2P negotiation robustness
	  - extra waits to get ACK frames through
	  - longer timeouts for cases where deployed devices have been
	    identified have issues meeting the specification requirements
	  - more retries for some P2P frames
	  - handle race conditions in GO Negotiation start by both devices
	  - ignore unexpected GO Negotiation Response frame
	* added support for libnl 3.2 and newer
	* added P2P persistent group info to P2P_PEER data
	* maintain a list of P2P Clients for persistent group on GO
	* AP: increased initial group key handshake retransmit timeout to 500 ms
	* added optional dev_id parameter for p2p_find
	* added P2P-FIND-STOPPED ctrl_iface event
	* fixed issues in WPA/RSN element validation when roaming with ap_scan=1
	  and driver-based BSS selection
	* do not expire P2P peer entries while connected with the peer in a
	  group
	* fixed WSC element inclusion in cases where P2P is disabled
	* AP: added a WPS workaround for mixed mode AP Settings with Windows 7
	* EAP-SIM: fixed AT_COUNTER_TOO_SMALL use
	* EAP-SIM/AKA: append realm to pseudonym identity
	* EAP-SIM/AKA: store pseudonym identity in network configuration to
	  allow it to persist over multiple EAP sessions and wpa_supplicant
	  restarts
	* EAP-AKA': updated to RFC 5448 (username prefixes changed); note: this
	  breaks interoperability with older versions
	* added support for WFA Hotspot 2.0
	  - GAS/ANQP to fetch network information
	  - credential configuration and automatic network selections based on
	    credential match with ANQP information
	* limited PMKSA cache entries to be used only with the network context
	  that was used to create them
	* improved PMKSA cache expiration to avoid unnecessary disconnections
	* adjusted bgscan_simple fast-scan backoff to avoid too frequent
	  background scans
	* removed ctrl_iface event on P2P PD Response in join-group case
	* added option to fetch BSS table entry based on P2P Device Address
	  ("BSS p2p_dev_addr=<P2P Device Address>")
	* added BSS entry age to ctrl_iface BSS command output
	* added optional MASK=0xH option for ctrl_iface BSS command to select
	  which fields are included in the response
	* added optional RANGE=ALL|N1-N2 option for ctrl_iface BSS command to
	  fetch information about several BSSes in one call
	* simplified licensing terms by selecting the BSD license as the only
	  alternative
	* added "P2P_SET disallow_freq <freq list>" ctrl_iface command to
	  disable channels from P2P use
	* added p2p_pref_chan configuration parameter to allow preferred P2P
	  channels to be specified
	* added support for advertising immediate availability of a WPS
	  credential for P2P use cases
	* optimized scan operations for P2P use cases (use single channel scan
	  for a specific SSID when possible)
	* EAP-TTLS: fixed peer challenge generation for MSCHAPv2
	* SME: do not use reassociation after explicit disconnection request
	  (local or a notification from an AP)
	* added support for sending debug info to Linux tracing (-T on command
	  line)
	* added support for using Deauthentication reason code 3 as an
	  indication of P2P group termination
	* added wps_vendor_ext_m1 configuration parameter to allow vendor
	  specific attributes to be added to WPS M1
	* started using separate TLS library context for tunneled TLS
	  (EAP-PEAP/TLS, EAP-TTLS/TLS, EAP-FAST/TLS) to support different CA
	  certificate configuration between Phase 1 and Phase 2
	* added optional "auto" parameter for p2p_connect to request automatic
	  GO Negotiation vs. join-a-group selection
	* added disabled_scan_offload parameter to disable automatic scan
	  offloading (sched_scan)
	* added optional persistent=<network id> parameter for p2p_connect to
	  allow forcing of a specific SSID/passphrase for GO Negotiation
	* added support for OBSS scan requests and 20/40 BSS coexistence reports
	* reject PD Request for unknown group
	* removed scripts and notes related to Windows binary releases (which
	  have not been used starting from 1.x)
	* added initial support for WNM operations
	  - Keep-alive based on BSS max idle period
	  - WNM-Sleep Mode
	  - minimal BSS Transition Management processing
	* added autoscan module to control scanning behavior while not connected
	  - autoscan_periodic and autoscan_exponential modules
	* added new WPS NFC ctrl_iface mechanism
	  - added initial support NFC connection handover
	  - removed obsoleted WPS_OOB command (including support for deprecated
	    UFD config_method)
	* added optional framework for external password storage ("ext:<name>")
	* wpa_cli: added optional support for controlling wpa_supplicant
	  remotely over UDP (CONFIG_CTRL_IFACE=udp-remote) for testing purposes
	* wpa_cli: extended tab completion to more commands
	* changed SSID output to use printf-escaped strings instead of masking
	  of non-ASCII characters
	  - SSID can now be configured in the same format: ssid=P"abc\x00test"
	* removed default ACM=1 from AC_VO and AC_VI
	* added optional "ht40" argument for P2P ctrl_iface commands to allow
	  40 MHz channels to be requested on the 5 GHz band
	* added optional parameters for p2p_invite command to specify channel
	  when reinvoking a persistent group as the GO
	* improved FIPS mode builds with OpenSSL
	  - "make fips" with CONFIG_FIPS=y to build wpa_supplicant with the
	    OpenSSL FIPS object module
	  - replace low level OpenSSL AES API calls to use EVP
	  - use OpenSSL keying material exporter when possible
	  - do not export TLS keys in FIPS mode
	  - remove MD5 from CONFIG_FIPS=y builds
	  - use OpenSSL function for PKBDF2 passphrase-to-PSK
	  - use OpenSSL HMAC implementation
	  - mix RAND_bytes() output into random_get_bytes() to force OpenSSL
	    DRBG to be used in FIPS mode
	  - use OpenSSL CMAC implementation
	* added mechanism to disable TLS Session Ticket extension
	  - a workaround for servers that do not support TLS extensions that
	    was enabled by default in recent OpenSSL versions
	  - tls_disable_session_ticket=1
	  - automatically disable TLS Session Ticket extension by default when
	    using EAP-TLS/PEAP/TTLS (i.e., only use it with EAP-FAST)
	* changed VENDOR-TEST EAP method to use proper private enterprise number
	  (this will not interoperate with older versions)
	* disable network block temporarily on authentication failures
	* improved WPS AP selection during WPS PIN iteration
	* added support for configuring GCMP cipher for IEEE 802.11ad
	* added support for Wi-Fi Display extensions
	  - WFD_SUBELEMENT_SET ctrl_iface command to configure WFD subelements
	  - SET wifi_display <0/1> to disable/enable WFD support
	  - WFD service discovery
	  - an external program is needed to manage the audio/video streaming
	    and codecs
	* optimized scan result use for network selection
	  - use the internal BSS table instead of raw scan results
	  - allow unnecessary scans to be skipped if fresh information is
	    available (e.g., after GAS/ANQP round for Interworking)
	* added support for 256-bit AES with internal TLS implementation
	* allow peer to propose channel in P2P invitation process for a
	  persistent group
	* added disallow_aps parameter to allow BSSIDs/SSIDs to be disallowed
	  from network selection
	* re-enable the networks disabled during WPS operations
	* allow P2P functionality to be disabled per interface (p2p_disabled=1)
	* added secondary device types into P2P_PEER output
	* added an option to disable use of a separate P2P group interface
	  (p2p_no_group_iface=1)
	* fixed P2P Bonjour SD to match entries with both compressed and not
	  compressed domain name format and support multiple Bonjour PTR matches
	  for the same key
	* use deauthentication instead of disassociation for all disconnection
	  operations; this removes the now unused disassociate() wpa_driver_ops
	  callback
	* optimized PSK generation on P2P GO by caching results to avoid
	  multiple PBKDF2 operations
	* added okc=1 global configuration parameter to allow OKC to be enabled
	  by default for all network blocks
	* added a workaround for WPS PBC session overlap detection to avoid
	  interop issues with deployed station implementations that do not
	  remove active PBC indication from Probe Request frames properly
	* added basic support for 60 GHz band
	* extend EAPOL frames processing workaround for roaming cases
	  (postpone processing of unexpected EAPOL frame until association
	  event to handle reordered events)

2012-05-10 - v1.0
	* bsd: Add support for setting HT values in IFM_MMASK.
	* Delay STA entry removal until Deauth/Disassoc TX status in AP mode.
	  This allows the driver to use PS buffering of Deauthentication and
	  Disassociation frames when the STA is in power save sleep. Only
	  available with drivers that provide TX status events for Deauth/
	  Disassoc frames (nl80211).
	* Drop oldest unknown BSS table entries first. This makes it less
	  likely to hit connection issues in environments with huge number
	  of visible APs.
	* Add systemd support.
	* Add support for setting the syslog facility from the config file
	  at build time.
	* atheros: Add support for IEEE 802.11w configuration.
	* AP mode: Allow enable HT20 if driver supports it, by setting the
	  config parameter ieee80211n.
	* Allow AP mode to disconnect STAs based on low ACK condition (when
	  the data connection is not working properly, e.g., due to the STA
	  going outside the range of the AP). Disabled by default, enable by
	  config option disassoc_low_ack.
	* nl80211:
[--snip--]
