hostapd/ChangeLog

   1 ChangeLog for hostapd
   2
   3 2013-01-12 - v2.0
   4         * added AP-STA-DISCONNECTED ctrl_iface event
   5         * improved debug logging (human readable event names, interface name
   6           included in more entries)
   7         * added number of small changes to make it easier for static analyzers
   8           to understand the implementation
   9         * added a workaround for Windows 7 Michael MIC failure reporting and
  10           use of the Secure bit in EAPOL-Key msg 3/4
  11         * fixed number of small bugs (see git logs for more details)
  12         * changed OpenSSL to read full certificate chain from server_cert file
  13         * nl80211: number of updates to use new cfg80211/nl80211 functionality
  14           - replace monitor interface with nl80211 commands
  15           - additional information for driver-based AP SME
  16         * EAP-pwd:
  17           - fix KDF for group 21 and zero-padding
  18           - added support for fragmentation
  19           - increased maximum number of hunting-and-pecking iterations
  20         * avoid excessive Probe Response retries for broadcast Probe Request
  21           frames (only with drivers using hostapd SME/MLME)
  22         * added preliminary support for using TLS v1.2 (CONFIG_TLSV12=y)
  23         * fixed WPS operation stopping on dual concurrent AP
  24         * added wps_rf_bands configuration parameter for overriding RF Bands
  25           value for WPS
  26         * added support for getting per-device PSK from RADIUS Tunnel-Password
  27         * added support for libnl 3.2 and newer
  28         * increased initial group key handshake retransmit timeout to 500 ms
  29         * added a workaround for 4-way handshake to update SNonce even after
  30           having sent EAPOL-Key 3/4 to avoid issues with some supplicant
  31           implementations that can change SNonce for each EAP-Key 2/4
  32         * added a workaround for EAPOL-Key 4/4 using incorrect type value in
  33           WPA2 mode (some deployed stations use WPA type in that message)
  34         * added a WPS workaround for mixed mode AP Settings with Windows 7
  35         * changed WPS AP PIN disabling mechanism to disable the PIN after 10
  36           consecutive failures in addition to using the exponential lockout
  37           period
  38         * added support for WFA Hotspot 2.0
  39           - GAS/ANQP advertisement of network information
  40           - disable_dgaf parameter to disable downstream group-addressed
  41             forwarding
  42         * simplified licensing terms by selecting the BSD license as the only
  43           alternative
  44         * EAP-SIM: fixed re-authentication not to update pseudonym
  45         * EAP-SIM: use Notification round before EAP-Failure
  46         * EAP-AKA: added support for AT_COUNTER_TOO_SMALL
  47         * EAP-AKA: skip AKA/Identity exchange if EAP identity is recognized
  48         * EAP-AKA': fixed identity for MK derivation
  49         * EAP-AKA': updated to RFC 5448 (username prefixes changed); note: this
  50           breaks interoperability with older versions
  51         * EAP-SIM/AKA: allow pseudonym to be used after unknown reauth id
  52         * changed ANonce to be a random number instead of Counter-based
  53         * added support for canceling WPS operations with hostapd_cli wps_cancel
  54         * fixed EAP/WPS to PSK transition on reassociation in cases where
  55           deauthentication is missed
  56         * hlr_auc_gw enhancements:
  57           - a new command line parameter -u can be used to enable updating of
  58             SQN in Milenage file
  59           - use 5 bit IND for SQN updates
  60           - SQLite database can now be used to store Milenage information
  61         * EAP-SIM/AKA DB: added optional use of SQLite database for pseudonyms
  62           and reauth data
  63         * added support for Chargeable-User-Identity (RFC 4372)
  64         * added radius_auth_req_attr and radius_acct_req_attr configuration
  65           parameters to allow adding/overriding of RADIUS attributes in
  66           Access-Request and Accounting-Request packets
  67         * added support for RADIUS dynamic authorization server (RFC 5176)
  68         * added initial support for WNM operations
  69           - BSS max idle period
  70           - WNM-Sleep Mode
  71         * added new WPS NFC ctrl_iface mechanism
  72           - removed obsoleted WPS_OOB command (including support for deprecated
  73             UFD config_method)
  74         * added FT support for drivers that implement MLME internally
  75         * added SA Query support for drivers that implement MLME internally
  76         * removed default ACM=1 from AC_VO and AC_VI
  77         * changed VENDOR-TEST EAP method to use proper private enterprise number
  78           (this will not interoperate with older versions)
  79         * added hostapd.conf parameter vendor_elements to allow arbitrary vendor
  80           specific elements to be added to the Beacon and Probe Response frames
  81         * added support for configuring GCMP cipher for IEEE 802.11ad
  82         * added support for 256-bit AES with internal TLS implementation
  83         * changed EAPOL transmission to use AC_VO if WMM is active
  84         * fixed EAP-TLS/PEAP/TTLS/FAST server to validate TLS Message Length
  85           correctly; invalid messages could have caused the hostapd process to
  86           terminate before this fix [CVE-2012-4445]
  87         * limit number of active wildcard PINs for WPS Registrar to one to avoid
  88           confusing behavior with multiple wildcard PINs
  89         * added a workaround for WPS PBC session overlap detection to avoid
  90           interop issues with deployed station implementations that do not
  91           remove active PBC indication from Probe Request frames properly
  92         * added support for using SQLite for the eap_user database
  93         * added Acct-Session-Id attribute into Access-Request messages
  94         * fixed EAPOL frame transmission to non-QoS STAs with nl80211
  95           (do not send QoS frames if the STA did not negotiate use of QoS for
  96           this association)
  97
  98 2012-05-10 - v1.0
  99         * Add channel selection support in hostapd. See hostapd.conf.
 100         * Add support for IEEE 802.11v Time Advertisement mechanism with UTC
 101           TSF offset. See hostapd.conf for config info.
 102         * Delay STA entry removal until Deauth/Disassoc TX status in AP mode.
 103           This allows the driver to use PS buffering of Deauthentication and
 104           Disassociation frames when the STA is in power save sleep. Only
 105           available with drivers that provide TX status events for Deauth/
 106           Disassoc frames (nl80211).
 107         * Allow PMKSA caching to be disabled on the Authenticator. See
 108           hostap.conf config parameter disable_pmksa_caching.
 109         * atheros: Add support for IEEE 802.11w configuration.
 110         * bsd: Add support for setting HT values in IFM_MMASK.
 111         * Allow client isolation to be configured with ap_isolate. Client
 112           isolation can be used to prevent low-level bridging of frames
 113           between associated stations in the BSS. By default, this bridging
 114           is allowed.
 115         * Allow coexistance of HT BSSes with WEP/TKIP BSSes.
 116         * Add require_ht config parameter, which can be used to configure
 117           hostapd to reject association with any station that does not support
 118           HT PHY.
 119         * Add support for writing debug log to a file using "-f" option. Also
 120           add relog CLI command to re-open the log file.
 121         * Add bridge handling for WDS STA interfaces. By default they are
 122           added to the configured bridge of the AP interface (if present),
 123           but the user can also specify a separate bridge using cli command
 124           wds_bridge.
 125         * hostapd_cli:
 126           - Add wds_bridge command for specifying bridge for WDS STA
 127             interfaces.
 128           - Add relog command for reopening log file.
 129           - Send AP-STA-DISCONNECTED event when an AP disconnects a station
 130             due to inactivity.
 131           - Add wps_config ctrl_interface command for configuring AP. This
 132             command can be used to configure the AP using the internal WPS
 133             registrar. It works in the same way as new AP settings received
 134             from an ER.
 135           - Many WPS/WPS ER commands - see WPS/WPS ER sections for details.
 136           - Add command get version, that returns hostapd version string.
 137         * WNM: Add BSS Transition Management Request for ESS Disassoc Imminent.
 138           Use hostapd_cli ess_disassoc (STA addr) (URL) to send the
 139           notification to the STA.
 140         * Allow AP mode to disconnect STAs based on low ACK condition (when
 141           the data connection is not working properly, e.g., due to the STA
 142           going outside the range of the AP). Disabled by default, enable by
 143           config option disassoc_low_ack.
 144         * Add WPA_IGNORE_CONFIG_ERRORS build option to continue in case of bad
 145           config file.
 146         * WPS:
 147           - Send AP Settings as a wrapped Credential attribute to ctrl_iface
 148             in WPS-NEW-AP-SETTINGS.
 149           - Dispatch more WPS events through hostapd ctrl_iface.
 150           - Add mechanism for indicating non-standard WPS errors.
 151           - Change concurrent radio AP to use only one WPS UPnP instance.
 152           - Add wps_check_pin command for processing PIN from user input.
 153             UIs can use this command to process a PIN entered by a user and to
 154             validate the checksum digit (if present).
 155           - Add hostap_cli get_config command to display current AP config.
 156           - Add new hostapd_cli command, wps_ap_pin, to manage AP PIN at
 157             runtime and support dynamic AP PIN management.
 158           - Disable AP PIN after 10 consecutive failures. Slow down attacks
 159             on failures up to 10.
 160           - Allow AP to start in Enrollee mode without AP PIN for probing,
 161             to be compatible with Windows 7.
 162           - Add Config Error into WPS-FAIL events to provide more info
 163             to the user on how to resolve the issue.
 164           - When controlling multiple interfaces:
 165              - apply WPS commands to all interfaces configured to use WPS
 166              - apply WPS config changes to all interfaces that use WPS
 167              - when an attack is detected on any interface, disable AP PIN on
 168                all interfaces
 169         * WPS ER:
 170           - Show SetSelectedRegistrar events as ctrl_iface events.
 171           - Add special AP Setup Locked mode to allow read only ER.
 172             ap_setup_locked=2 can now be used to enable a special mode where
 173             WPS ER can learn the current AP settings, but cannot change them.
 174         * WPS 2.0: Add support for WPS 2.0 (CONFIG_WPS2)
 175           - Add build option CONFIG_WPS_EXTENSIBILITY_TESTING to enable tool
 176             for testing protocol extensibility.
 177           - Add build option CONFIG_WPS_STRICT to allow disabling of WPS
 178             workarounds.
 179           - Add support for AuthorizedMACs attribute.
 180         * TDLS:
 181           - Allow TDLS use or TDLS channel switching in the BSS to be
 182             prohibited in the BSS, using config params tdls_prohibit and
 183             tdls_prohibit_chan_switch.
 184         * EAP server: Add support for configuring fragment size (see
 185           fragment_size in hostapd.conf).
 186         * wlantest: Add a tool wlantest for IEEE802.11 protocol testing.
 187           wlantest can be used to capture frames from a monitor interface
 188           for realtime capturing or from pcap files for offline analysis.
 189         * Interworking: Support added for 802.11u. Enable in .config with
 190           CONFIG_INTERWORKING. See hostapd.conf for config parameters for
 191           interworking.
 192         * Android: Add build and runtime support for Android hostapd.
 193         * Add a new debug message level for excessive information. Use
 194           -ddd to enable.
 195         * TLS: Add support for tls_disable_time_checks=1 in client mode.
 196         * Internal TLS:
 197           - Add support for TLS v1.1 (RFC 4346). Enable with build parameter
 198             CONFIG_TLSV11.
 199           - Add domainComponent parser for X.509 names
 200         * Reorder some IEs to get closer to IEEE 802.11 standard. Move
 201           WMM into end of Beacon, Probe Resp and (Re)Assoc Resp frames.
 202           Move HT IEs to be later in (Re)Assoc Resp.
 203         * Many bugfixes.
 204
 205 2010-04-18 - v0.7.2
 206         * fix WPS internal Registrar use when an external Registrar is also
 207           active
 208         * bsd: Cleaned up driver wrapper and added various low-level
 209           configuration options
 210         * TNC: fixed issues with fragmentation
 211         * EAP-TNC: add Flags field into fragment acknowledgement (needed to
 212           interoperate with other implementations; may potentially breaks
 213           compatibility with older wpa_supplicant/hostapd versions)
 214         * cleaned up driver wrapper API for multi-BSS operations
 215         * nl80211: fix multi-BSS and VLAN operations
 216         * fix number of issues with IEEE 802.11r/FT; this version is not
 217           backwards compatible with old versions
 218         * add SA Query Request processing in AP mode (IEEE 802.11w)
 219         * fix IGTK PN in group rekeying (IEEE 802.11w)
 220         * fix WPS PBC session overlap detection to use correct attribute
 221         * hostapd_notif_Assoc() can now be called with all IEs to simplify
 222           driver wrappers
 223         * work around interoperability issue with some WPS External Registrar
 224           implementations
 225         * nl80211: fix WPS IE update
 226         * hostapd_cli: add support for action script operations (run a script
 227           on hostapd events)
 228         * fix DH padding with internal crypto code (mainly, for WPS)
 229         * fix WPS association with both WPS IE and WPA/RSN IE present with
 230           driver wrappers that use hostapd MLME (e.g., nl80211)
 231
 232 2010-01-16 - v0.7.1
 233         * cleaned up driver wrapper API (struct wpa_driver_ops); the new API
 234           is not fully backwards compatible, so out-of-tree driver wrappers
 235           will need modifications
 236         * cleaned up various module interfaces
 237         * merge hostapd and wpa_supplicant developers' documentation into a
 238           single document
 239         * fixed HT Capabilities IE with nl80211 drivers
 240         * moved generic AP functionality code into src/ap
 241         * WPS: handle Selected Registrar as union of info from all Registrars
 242         * remove obsolte Prism54.org driver wrapper
 243         * added internal debugging mechanism with backtrace support and memory
 244           allocation/freeing validation, etc. tests (CONFIG_WPA_TRACE=y)
 245         * EAP-FAST server: piggyback Phase 2 start with the end of Phase 1
 246         * WPS: add support for dynamically selecting whether to provision the
 247           PSK as an ASCII passphrase or PSK
 248         * added support for WDS (4-address frame) mode with per-station virtual
 249           interfaces (wds_sta=1 in config file; only supported with
 250           driver=nl80211 for now)
 251         * fixed WPS Probe Request processing to handle missing required
 252           attribute
 253         * fixed PKCS#12 use with OpenSSL 1.0.0
 254         * detect bridge interface automatically so that bridge parameter in
 255           hostapd.conf becomes optional (though, it may now be used to
 256           automatically add then WLAN interface into a bridge with
 257           driver=nl80211)
 258
 259 2009-11-21 - v0.7.0
 260         * increased hostapd_cli ping interval to 5 seconds and made this
 261           configurable with a new command line options (-G<seconds>)
 262         * driver_nl80211: use Linux socket filter to improve performance
 263         * added support for external Registrars with WPS (UPnP transport)
 264         * 802.11n: scan for overlapping BSSes before starting 20/40 MHz channel
 265         * driver_nl80211: fixed STA accounting data collection (TX/RX bytes
 266           reported correctly; TX/RX packets not yet available from kernel)
 267         * added support for WPS USBA out-of-band mechanism with USB Flash
 268           Drives (UFD) (CONFIG_WPS_UFD=y)
 269         * fixed EAPOL/EAP reauthentication when using an external RADIUS
 270           authentication server
 271         * fixed TNC with EAP-TTLS
 272         * fixed IEEE 802.11r key derivation function to match with the standard
 273           (note: this breaks interoperability with previous version) [Bug 303]
 274         * fixed SHA-256 based key derivation function to match with the
 275           standard when using CCMP (for IEEE 802.11r and IEEE 802.11w)
 276           (note: this breaks interoperability with previous version) [Bug 307]
 277         * added number of code size optimizations to remove unnecessary
 278           functionality from the program binary based on build configuration
 279           (part of this automatic; part configurable with CONFIG_NO_* build
 280           options)
 281         * use shared driver wrapper files with wpa_supplicant
 282         * driver_nl80211: multiple updates to provide support for new Linux
 283           nl80211/mac80211 functionality
 284         * updated management frame protection to use IEEE Std 802.11w-2009
 285         * fixed number of small WPS issues and added workarounds to
 286           interoperate with common deployed broken implementations
 287         * added some IEEE 802.11n co-existence rules to disable 40 MHz channels
 288           or modify primary/secondary channels if needed based on neighboring
 289           networks
 290         * added support for NFC out-of-band mechanism with WPS
 291         * added preliminary support for IEEE 802.11r RIC processing
 292
 293 2009-01-06 - v0.6.7
 294         * added support for Wi-Fi Protected Setup (WPS)
 295           (hostapd can now be configured to act as an integrated WPS Registrar
 296           and provision credentials for WPS Enrollees using PIN and PBC
 297           methods; external wireless Registrar can configure the AP, but
 298           external WLAN Manager Registrars are not supported); WPS support can
 299           be enabled by adding CONFIG_WPS=y into .config and setting the
 300           runtime configuration variables in hostapd.conf (see WPS section in
 301           the example configuration file); new hostapd_cli commands wps_pin and
 302           wps_pbc are used to configure WPS negotiation; see README-WPS for
 303           more details
 304         * added IEEE 802.11n HT capability configuration (ht_capab)
 305         * added support for generating Country IE based on nl80211 regulatory
 306           information (added if ieee80211d=1 in configuration)
 307         * fixed WEP authentication (both Open System and Shared Key) with
 308           mac80211
 309         * added support for EAP-AKA' (draft-arkko-eap-aka-kdf)
 310         * added support for using driver_test over UDP socket
 311         * changed EAP-GPSK to use the IANA assigned EAP method type 51
 312         * updated management frame protection to use IEEE 802.11w/D7.0
 313         * fixed retransmission of EAP requests if no response is received
 314
 315 2008-11-23 - v0.6.6
 316         * added a new configuration option, wpa_ptk_rekey, that can be used to
 317           enforce frequent PTK rekeying, e.g., to mitigate some attacks against
 318           TKIP deficiencies
 319         * updated OpenSSL code for EAP-FAST to use an updated version of the
 320           session ticket overriding API that was included into the upstream
 321           OpenSSL 0.9.9 tree on 2008-11-15 (no additional OpenSSL patch is
 322           needed with that version anymore)
 323         * changed channel flags configuration to read the information from
 324           the driver (e.g., via driver_nl80211 when using mac80211) instead of
 325           using hostapd as the source of the regulatory information (i.e.,
 326           information from CRDA is now used with mac80211); this allows 5 GHz
 327           channels to be used with hostapd (if allowed in the current
 328           regulatory domain)
 329         * fixed EAP-TLS message processing for the last TLS message if it is
 330           large enough to require fragmentation (e.g., if a large Session
 331           Ticket data is included)
 332         * fixed listen interval configuration for nl80211 drivers
 333
 334 2008-11-01 - v0.6.5
 335         * added support for SHA-256 as X.509 certificate digest when using the
 336           internal X.509/TLSv1 implementation
 337         * fixed EAP-FAST PAC-Opaque padding (0.6.4 broke this for some peer
 338           identity lengths)
 339         * fixed internal TLSv1 implementation for abbreviated handshake (used
 340           by EAP-FAST server)
 341         * added support for setting VLAN ID for STAs based on local MAC ACL
 342           (accept_mac_file) as an alternative for RADIUS server-based
 343           configuration
 344         * updated management frame protection to use IEEE 802.11w/D6.0
 345           (adds a new association ping to protect against unauthenticated
 346           authenticate or (re)associate request frames dropping association)
 347         * added support for using SHA256-based stronger key derivation for WPA2
 348           (IEEE 802.11w)
 349         * added new "driver wrapper" for RADIUS-only configuration
 350           (driver=none in hostapd.conf; CONFIG_DRIVER_NONE=y in .config)
 351         * fixed WPA/RSN IE validation to verify that the proto (WPA vs. WPA2)
 352           is enabled in configuration
 353         * changed EAP-FAST configuration to use separate fields for A-ID and
 354           A-ID-Info (eap_fast_a_id_info) to allow A-ID to be set to a fixed
 355           16-octet len binary value for better interoperability with some peer
 356           implementations; eap_fast_a_id is now configured as a hex string
 357         * driver_nl80211: Updated to match the current Linux mac80211 AP mode
 358           configuration (wireless-testing.git and Linux kernel releases
 359           starting from 2.6.29)
 360
 361 2008-08-10 - v0.6.4
 362         * added peer identity into EAP-FAST PAC-Opaque and skip Phase 2
 363           Identity Request if identity is already known
 364         * added support for EAP Sequences in EAP-FAST Phase 2
 365         * added support for EAP-TNC (Trusted Network Connect)
 366           (this version implements the EAP-TNC method and EAP-TTLS/EAP-FAST
 367           changes needed to run two methods in sequence (IF-T) and the IF-IMV
 368           and IF-TNCCS interfaces from TNCS)
 369         * added support for optional cryptobinding with PEAPv0
 370         * added fragmentation support for EAP-TNC
 371         * added support for fragmenting EAP-TTLS/PEAP/FAST Phase 2 (tunneled)
 372           data
 373         * added support for opportunistic key caching (OKC)
 374
 375 2008-02-22 - v0.6.3
 376         * fixed Reassociation Response callback processing when using internal
 377           MLME (driver_{hostap,nl80211,test}.c)
 378         * updated FT support to use the latest draft, IEEE 802.11r/D9.0
 379         * copy optional Proxy-State attributes into RADIUS response when acting
 380           as a RADIUS authentication server
 381         * fixed EAPOL state machine to handle a case in which no response is
 382           received from the RADIUS authentication server; previous version
 383           could have triggered a crash in some cases after a timeout
 384         * fixed EAP-SIM/AKA realm processing to allow decorated usernames to
 385           be used
 386         * added a workaround for EAP-SIM/AKA peers that include incorrect null
 387           termination in the username
 388         * fixed EAP-SIM/AKA protected result indication to include AT_COUNTER
 389           attribute in notification messages only when using fast
 390           reauthentication
 391         * fixed EAP-SIM Start response processing for fast reauthentication
 392           case
 393         * added support for pending EAP processing in EAP-{PEAP,TTLS,FAST}
 394           phase 2 to allow EAP-SIM and EAP-AKA to be used as the Phase 2 method
 395
 396 2008-01-01 - v0.6.2
 397         * fixed EAP-SIM and EAP-AKA message parser to validate attribute
 398           lengths properly to avoid potential crash caused by invalid messages
 399         * added data structure for storing allocated buffers (struct wpabuf);
 400           this does not affect hostapd usage, but many of the APIs changed
 401           and various interfaces (e.g., EAP) is not compatible with old
 402           versions
 403         * added support for protecting EAP-AKA/Identity messages with
 404           AT_CHECKCODE (optional feature in RFC 4187)
 405         * added support for protected result indication with AT_RESULT_IND for
 406           EAP-SIM and EAP-AKA (eap_sim_aka_result_ind=1)
 407         * added support for configuring EAP-TTLS phase 2 non-EAP methods in
 408           EAP server configuration; previously all four were enabled for every
 409           phase 2 user, now all four are disabled by default and need to be
 410           enabled with new method names TTLS-PAP, TTLS-CHAP, TTLS-MSCHAP,
 411           TTLS-MSCHAPV2
 412         * removed old debug printing mechanism and the related 'debug'
 413           parameter in the configuration file; debug verbosity is now set with
 414           -d (or -dd) command line arguments
 415         * added support for EAP-IKEv2 (draft-tschofenig-eap-ikev2-15.txt);
 416           only shared key/password authentication is supported in this version
 417
 418 2007-11-24 - v0.6.1
 419         * added experimental, integrated TLSv1 server implementation with the
 420           needed X.509/ASN.1/RSA/bignum processing (this can be enabled by
 421           setting CONFIG_TLS=internal and CONFIG_INTERNAL_LIBTOMMATH=y in
 422           .config); this can be useful, e.g., if the target system does not
 423           have a suitable TLS library and a minimal code size is required
 424         * added support for EAP-FAST server method to the integrated EAP
 425           server
 426         * updated EAP Generalized Pre-Shared Key (EAP-GPSK) to use the latest
 427           draft (draft-ietf-emu-eap-gpsk-07.txt)
 428         * added a new configuration parameter, rsn_pairwise, to allow different
 429           pairwise cipher suites to be enabled for WPA and RSN/WPA2
 430           (note: if wpa_pairwise differs from rsn_pairwise, the driver will
 431           either need to support this or will have to use the WPA/RSN IEs from
 432           hostapd; currently, the included madwifi and bsd driver interfaces do
 433           not have support for this)
 434         * updated FT support to use the latest draft, IEEE 802.11r/D8.0
 435
 436 2007-05-28 - v0.6.0
 437         * added experimental IEEE 802.11r/D6.0 support
 438         * updated EAP-SAKE to RFC 4763 and the IANA-allocated EAP type 48
 439         * updated EAP-PSK to use the IANA-allocated EAP type 47
 440         * fixed EAP-PSK bit ordering of the Flags field
 441         * fixed configuration reloading (SIGHUP) to re-initialize WPA PSKs
 442           by reading wpa_psk_file [Bug 181]
 443         * fixed EAP-TTLS AVP parser processing for too short AVP lengths
 444         * fixed IPv6 connection to RADIUS accounting server
 445         * updated EAP Generalized Pre-Shared Key (EAP-GPSK) to use the latest
 446           draft (draft-ietf-emu-eap-gpsk-04.txt)
 447         * hlr_auc_gw: read GSM triplet file into memory and rotate through the
 448           entries instead of only using the same three triplets every time
 449           (this does not work properly with tests using multiple clients, but
 450           provides bit better triplet data for testing a single client; anyway,
 451           if a better quality triplets are needed, GSM-Milenage should be used
 452           instead of hardcoded triplet file)
 453         * fixed EAP-MSCHAPv2 server to use a space between S and M parameters
 454           in Success Request [Bug 203]
 455         * added support for sending EAP-AKA Notifications in error cases
 456         * updated to use IEEE 802.11w/D2.0 for management frame protection
 457           (still experimental)
 458         * RADIUS server: added support for processing duplicate messages
 459           (retransmissions from RADIUS client) by replying with the previous
 460           reply
 461
 462 2006-11-24 - v0.5.6
 463         * added support for configuring and controlling multiple BSSes per
 464           radio interface (bss=<ifname> in hostapd.conf); this is only
 465           available with Devicescape and test driver interfaces
 466         * fixed PMKSA cache update in the end of successful RSN
 467           pre-authentication
 468         * added support for dynamic VLAN configuration (i.e., selecting VLAN-ID
 469           for each STA based on RADIUS Access-Accept attributes); this requires
 470           VLAN support from the kernel driver/802.11 stack and this is
 471           currently only available with Devicescape and test driver interfaces
 472         * driver_madwifi: fixed configuration of unencrypted modes (plaintext
 473           and IEEE 802.1X without WEP)
 474         * removed STAKey handshake since PeerKey handshake has replaced it in
 475           IEEE 802.11ma and there are no known deployments of STAKey
 476         * updated EAP Generalized Pre-Shared Key (EAP-GPSK) to use the latest
 477           draft (draft-ietf-emu-eap-gpsk-01.txt)
 478         * added preliminary implementation of IEEE 802.11w/D1.0 (management
 479           frame protection)
 480           (Note: this requires driver support to work properly.)
 481           (Note2: IEEE 802.11w is an unapproved draft and subject to change.)
 482         * hlr_auc_gw: added support for GSM-Milenage (for EAP-SIM)
 483         * hlr_auc_gw: added support for reading per-IMSI Milenage keys and
 484           parameters from a text file to make it possible to implement proper
 485           GSM/UMTS authentication server for multiple SIM/USIM cards using
 486           EAP-SIM/EAP-AKA
 487         * fixed session timeout processing with drivers that do not use
 488           ieee802_11.c (e.g., madwifi)
 489
 490 2006-08-27 - v0.5.5
 491         * added 'hostapd_cli new_sta <addr>' command for adding a new STA into
 492           hostapd (e.g., to initialize wired network authentication based on an
 493           external signal)
 494         * fixed hostapd to add PMKID KDE into 4-Way Handshake Message 1 when
 495           using WPA2 even if PMKSA caching is not used
 496         * added -P<pid file> argument for hostapd to write the current process
 497           id into a file
 498         * added support for RADIUS Authentication Server MIB (RFC 2619)
 499
 500 2006-06-20 - v0.5.4
 501         * fixed nt_password_hash build [Bug 144]
 502         * added PeerKey handshake implementation for IEEE 802.11e
 503           direct link setup (DLS) to replace STAKey handshake
 504         * added support for EAP Generalized Pre-Shared Key (EAP-GPSK,
 505           draft-clancy-emu-eap-shared-secret-00.txt)
 506         * fixed a segmentation fault when RSN pre-authentication was completed
 507           successfully [Bug 152]
 508
 509 2006-04-27 - v0.5.3
 510         * do not build nt_password_hash and hlr_auc_gw by default to avoid
 511           requiring a TLS library for a successful build; these programs can be
 512           build with 'make nt_password_hash' and 'make hlr_auc_gw'
 513         * added a new configuration option, eapol_version, that can be used to
 514           set EAPOL version to 1 (default is 2) to work around broken client
 515           implementations that drop EAPOL frames which use version number 2
 516           [Bug 89]
 517         * added support for EAP-SAKE (no EAP method number allocated yet, so
 518           this is using the same experimental type 255 as EAP-PSK)
 519         * fixed EAP-MSCHAPv2 message length validation
 520
 521 2006-03-19 - v0.5.2
 522         * fixed stdarg use in hostapd_logger(): if both stdout and syslog
 523           logging was enabled, hostapd could trigger a segmentation fault in
 524           vsyslog on some CPU -- C library combinations
 525         * moved HLR/AuC gateway implementation for EAP-SIM/AKA into an external
 526           program to make it easier to use for implementing real SS7 gateway;
 527           eap_sim_db is not anymore used as a file name for GSM authentication
 528           triplets; instead, it is path to UNIX domain socket that will be used
 529           to communicate with the external gateway program (e.g., hlr_auc_gw)
 530         * added example HLR/AuC gateway implementation, hlr_auc_gw, that uses
 531           local information (GSM authentication triplets from a text file and
 532           hardcoded AKA authentication data); this can be used to test EAP-SIM
 533           and EAP-AKA
 534         * added Milenage algorithm (example 3GPP AKA algorithm) to hlr_auc_gw
 535           to make it possible to test EAP-AKA with real USIM cards (this is
 536           disabled by default; define AKA_USE_MILENAGE when building hlr_auc_gw
 537           to enable this)
 538         * driver_madwifi: added support for getting station RSN IE from
 539           madwifi-ng svn r1453 and newer; this fixes RSN that was apparently
 540           broken with earlier change (r1357) in the driver
 541         * changed EAP method registration to use a dynamic list of methods
 542           instead of a static list generated at build time
 543         * fixed WPA message 3/4 not to encrypt Key Data field (WPA IE)
 544           [Bug 125]
 545         * added ap_max_inactivity configuration parameter
 546
 547 2006-01-29 - v0.5.1
 548         * driver_test: added better support for multiple APs and STAs by using
 549           a directory with sockets that include MAC address for each device in
 550           the name (test_socket=DIR:/tmp/test)
 551         * added support for EAP expanded type (vendor specific EAP methods)
 552
 553 2005-12-18 - v0.5.0 (beginning of 0.5.x development releases)
 554         * added experimental STAKey handshake implementation for IEEE 802.11e
 555           direct link setup (DLS); note: this is disabled by default in both
 556           build and runtime configuration (can be enabled with CONFIG_STAKEY=y
 557           and stakey=1)
 558         * added support for EAP methods to use callbacks to external programs
 559           by buffering a pending request and processing it after the EAP method
 560           is ready to continue
 561         * improved EAP-SIM database interface to allow external request to GSM
 562           HLR/AuC without blocking hostapd process
 563         * added support for using EAP-SIM pseudonyms and fast re-authentication
 564         * added support for EAP-AKA in the integrated EAP authenticator
 565         * added support for matching EAP identity prefixes (e.g., "1"*) in EAP
 566           user database to allow EAP-SIM/AKA selection without extra roundtrip
 567           for EAP-Nak negotiation
 568         * added support for storing EAP user password as NtPasswordHash instead
 569           of plaintext password when using MSCHAP or MSCHAPv2 for
 570           authentication (hash:<16-octet hex value>); added nt_password_hash
 571           tool for hashing password to generate NtPasswordHash
 572
 573 2005-11-20 - v0.4.7 (beginning of 0.4.x stable releases)
 574         * driver_wired: fixed EAPOL sending to optionally use PAE group address
 575           as the destination instead of supplicant MAC address; this is
 576           disabled by default, but should be enabled with use_pae_group_addr=1
 577           in configuration file if the wired interface is used by only one
 578           device at the time (common switch configuration)
 579         * driver_madwifi: configure driver to use TKIP countermeasures in order
 580           to get correct behavior (IEEE 802.11 association failing; previously,
 581           association succeeded, but hostpad forced disassociation immediately)
 582         * driver_madwifi: added support for madwifi-ng
 583
 584 2005-10-27 - v0.4.6
 585         * added support for replacing user identity from EAP with RADIUS
 586           User-Name attribute from Access-Accept message, if that is included,
 587           for the RADIUS accounting messages (e.g., for EAP-PEAP/TTLS to get
 588           tunneled identity into accounting messages when the RADIUS server
 589           does not support better way of doing this with Class attribute)
 590         * driver_madwifi: fixed EAPOL packet receive for configuration where
 591           ath# is part of a bridge interface
 592         * added a configuration file and log analyzer script for logwatch
 593         * fixed EAPOL state machine step function to process all state
 594           transitions before processing new events; this resolves a race
 595           condition in which EAPOL-Start message could trigger hostapd to send
 596           two EAP-Response/Identity frames to the authentication server
 597
 598 2005-09-25 - v0.4.5
 599         * added client CA list to the TLS certificate request in order to make
 600           it easier for the client to select which certificate to use
 601         * added experimental support for EAP-PSK
 602         * added support for WE-19 (hostap, madwifi)
 603
 604 2005-08-21 - v0.4.4
 605         * fixed build without CONFIG_RSN_PREAUTH
 606         * fixed FreeBSD build
 607
 608 2005-06-26 - v0.4.3
 609         * fixed PMKSA caching to copy User-Name and Class attributes so that
 610           RADIUS accounting gets correct information
 611         * start RADIUS accounting only after successful completion of WPA
 612           4-Way Handshake if WPA-PSK is used
 613         * fixed PMKSA caching for the case where STA (re)associates without
 614           first disassociating
 615
 616 2005-06-12 - v0.4.2
 617         * EAP-PAX is now registered as EAP type 46
 618         * fixed EAP-PAX MAC calculation
 619         * fixed EAP-PAX CK and ICK key derivation
 620         * renamed eap_authenticator configuration variable to eap_server to
 621           better match with RFC 3748 (EAP) terminology
 622         * driver_test: added support for testing hostapd with wpa_supplicant
 623           by using test driver interface without any kernel drivers or network
 624           cards
 625
 626 2005-05-22 - v0.4.1
 627         * fixed RADIUS server initialization when only auth or acct server
 628           is configured and the other one is left empty
 629         * driver_madwifi: added support for RADIUS accounting
 630         * driver_madwifi: added preliminary support for compiling against 'BSD'
 631           branch of madwifi CVS tree
 632         * driver_madwifi: fixed pairwise key removal to allow WPA reauth
 633           without disassociation
 634         * added support for reading additional certificates from PKCS#12 files
 635           and adding them to the certificate chain
 636         * fixed RADIUS Class attribute processing to only use Access-Accept
 637           packets to update Class; previously, other RADIUS authentication
 638           packets could have cleared Class attribute
 639         * added support for more than one Class attribute in RADIUS packets
 640         * added support for verifying certificate revocation list (CRL) when
 641           using integrated EAP authenticator for EAP-TLS; new hostapd.conf
 642           options 'check_crl'; CRL must be included in the ca_cert file for now
 643
 644 2005-04-25 - v0.4.0 (beginning of 0.4.x development releases)
 645         * added support for including network information into
 646           EAP-Request/Identity message (ASCII-0 (nul) in eap_message)
 647           (e.g., to implement draft-adrange-eap-network-discovery-07.txt)
 648         * fixed a bug which caused some RSN pre-authentication cases to use
 649           freed memory and potentially crash hostapd
 650         * fixed private key loading for cases where passphrase is not set
 651         * added support for sending TLS alerts and aborting authentication
 652           when receiving a TLS alert
 653         * fixed WPA2 to add PMKSA cache entry when using integrated EAP
 654           authenticator
 655         * fixed PMKSA caching (EAP authentication was not skipped correctly
 656           with the new state machine changes from IEEE 802.1X draft)
 657         * added support for RADIUS over IPv6; own_ip_addr, auth_server_addr,
 658           and acct_server_addr can now be IPv6 addresses (CONFIG_IPV6=y needs
 659           to be added to .config to include IPv6 support); for RADIUS server,
 660           radius_server_ipv6=1 needs to be set in hostapd.conf and addresses
 661           in RADIUS clients file can then use IPv6 format
 662         * added experimental support for EAP-PAX
 663         * replaced hostapd control interface library (hostapd_ctrl.[ch]) with
 664           the same implementation that wpa_supplicant is using (wpa_ctrl.[ch])
 665
 666 2005-02-12 - v0.3.7 (beginning of 0.3.x stable releases)
 667
 668 2005-01-23 - v0.3.5
 669         * added support for configuring a forced PEAP version based on the
 670           Phase 1 identity
 671         * fixed PEAPv1 to use tunneled EAP-Success/Failure instead of EAP-TLV
 672           to terminate authentication
 673         * fixed EAP identifier duplicate processing with the new IEEE 802.1X
 674           draft
 675         * clear accounting data in the driver when starting a new accounting
 676           session
 677         * driver_madwifi: filter wireless events based on ifindex to allow more
 678           than one network interface to be used
 679         * fixed WPA message 2/4 processing not to cancel timeout for TimeoutEvt
 680           setting if the packet does not pass MIC verification (e.g., due to
 681           incorrect PSK); previously, message 1/4 was not tried again if an
 682           invalid message 2/4 was received
 683         * fixed reconfiguration of RADIUS client retransmission timer when
 684           adding a new message to the pending list; previously, timer was not
 685           updated at this point and if there was a pending message with long
 686           time for the next retry, the new message needed to wait that long for
 687           its first retry, too
 688
 689 2005-01-09 - v0.3.4
 690         * added support for configuring multiple allowed EAP types for Phase 2
 691           authentication (EAP-PEAP, EAP-TTLS)
 692         * fixed EAPOL-Start processing to trigger WPA reauthentication
 693           (previously, only EAPOL authentication was done)
 694
 695 2005-01-02 - v0.3.3
 696         * added support for EAP-PEAP in the integrated EAP authenticator
 697         * added support for EAP-GTC in the integrated EAP authenticator
 698         * added support for configuring list of EAP methods for Phase 1 so that
 699           the integrated EAP authenticator can, e.g., use the wildcard entry
 700           for EAP-TLS and EAP-PEAP
 701         * added support for EAP-TTLS in the integrated EAP authenticator
 702         * added support for EAP-SIM in the integrated EAP authenticator
 703         * added support for using hostapd as a RADIUS authentication server
 704           with the integrated EAP authenticator taking care of EAP
 705           authentication (new hostapd.conf options: radius_server_clients and
 706           radius_server_auth_port); this is not included in default build; use
 707           CONFIG_RADIUS_SERVER=y in .config to include
 708
 709 2004-12-19 - v0.3.2
 710         * removed 'daemonize' configuration file option since it has not really
 711           been used at all for more than year
 712         * driver_madwifi: fixed group key setup and added get_ssid method
 713         * added support for EAP-MSCHAPv2 in the integrated EAP authenticator
 714
 715 2004-12-12 - v0.3.1
 716         * added support for integrated EAP-TLS authentication (new hostapd.conf
 717           variables: ca_cert, server_cert, private_key, private_key_passwd);
 718           this enabled dynamic keying (WPA2/WPA/IEEE 802.1X/WEP) without
 719           external RADIUS server
 720         * added support for reading PKCS#12 (PFX) files (as a replacement for
 721           PEM/DER) to get certificate and private key (CONFIG_PKCS12)
 722
 723 2004-12-05 - v0.3.0 (beginning of 0.3.x development releases)
 724         * added support for Acct-{Input,Output}-Gigawords
 725         * added support for Event-Timestamp (in RADIUS Accounting-Requests)
 726         * added support for RADIUS Authentication Client MIB (RFC2618)
 727         * added support for RADIUS Accounting Client MIB (RFC2620)
 728         * made EAP re-authentication period configurable (eap_reauth_period)
 729         * fixed EAPOL reauthentication to trigger WPA/WPA2 reauthentication
 730         * fixed EAPOL state machine to stop if STA is removed during
 731           eapol_sm_step(); this fixes at least one segfault triggering bug with
 732           IEEE 802.11i pre-authentication
 733         * added support for multiple WPA pre-shared keys (e.g., one for each
 734           client MAC address or keys shared by a group of clients);
 735           new hostapd.conf field wpa_psk_file for setting path to a text file
 736           containing PSKs, see hostapd.wpa_psk for an example
 737         * added support for multiple driver interfaces to allow hostapd to be
 738           used with other drivers
 739         * added wired authenticator driver interface (driver=wired in
 740           hostapd.conf, see wired.conf for example configuration)
 741         * added madwifi driver interface (driver=madwifi in hostapd.conf, see
 742           madwifi.conf for example configuration; Note: include files from
 743           madwifi project is needed for building and a configuration file,
 744           .config, needs to be created in hostapd directory with
 745           CONFIG_DRIVER_MADWIFI=y to include this driver interface in hostapd
 746           build)
 747         * fixed an alignment issue that could cause SHA-1 to fail on some
 748           platforms (e.g., Intel ixp425 with a compiler that does not 32-bit
 749           align variables)
 750         * fixed RADIUS reconnection after an error in sending interim
 751           accounting packets
 752         * added hostapd control interface for external programs and an example
 753           CLI, hostapd_cli (like wpa_cli for wpa_supplicant)
 754         * started adding dot11, dot1x, radius MIBs ('hostapd_cli mib',
 755           'hostapd_cli sta <addr>')
 756         * finished update from IEEE 802.1X-2001 to IEEE 802.1X-REV (now d11)
 757         * added support for strict GTK rekeying (wpa_strict_rekey in
 758           hostapd.conf)
 759         * updated IAPP to use UDP port 3517 and multicast address 224.0.1.178
 760           (instead of broadcast) for IAPP ADD-notify (moved from draft 3 to
 761           IEEE 802.11F-2003)
 762         * added Prism54 driver interface (driver=prism54 in hostapd.conf;
 763           note: .config needs to be created in hostapd directory with
 764           CONFIG_DRIVER_PRISM54=y to include this driver interface in hostapd
 765           build)
 766         * dual-licensed hostapd (GPLv2 and BSD licenses)
 767         * fixed RADIUS accounting to generate a new session id for cases where
 768           a station reassociates without first being complete deauthenticated
 769         * fixed STA disassociation handler to mark next timeout state to
 770           deauthenticate the station, i.e., skip long wait for inactivity poll
 771           and extra disassociation, if the STA disassociates without
 772           deauthenticating
 773         * added integrated EAP authenticator that can be used instead of
 774           external RADIUS authentication server; currently, only EAP-MD5 is
 775           supported, so this cannot yet be used for key distribution; the EAP
 776           method interface is generic, though, so adding new EAP methods should
 777           be straightforward; new hostapd.conf variables: 'eap_authenticator'
 778           and 'eap_user_file'; this obsoletes "minimal authentication server"
 779           ('minimal_eap' in hostapd.conf) which is now removed
 780         * added support for FreeBSD and driver interface for the BSD net80211
 781           layer (driver=bsd in hostapd.conf and CONFIG_DRIVER_BSD=y in
 782           .config); please note that some of the required kernel mods have not
 783           yet been committed
 784
 785 2004-07-17 - v0.2.4 (beginning of 0.2.x stable releases)
 786         * fixed some accounting cases where Accounting-Start was sent when
 787           IEEE 802.1X port was being deauthorized
 788
 789 2004-06-20 - v0.2.3
 790         * modified RADIUS client to re-connect the socket in case of certain
 791           error codes that are generated when a network interface state is
 792           changes (e.g., when IP address changes or the interface is set UP)
 793         * fixed couple of cases where EAPOL state for a station was freed
 794           twice causing a segfault for hostapd
 795         * fixed couple of bugs in processing WPA deauthentication (freed data
 796           was used)
 797
 798 2004-05-31 - v0.2.2
 799         * fixed WPA/WPA2 group rekeying to use key index correctly (GN/GM)
 800         * fixed group rekeying to send zero TSC in EAPOL-Key messages to fix
 801           cases where STAs dropped multicast frames as replay attacks
 802         * added support for copying RADIUS Attribute 'Class' from
 803           authentication messages into accounting messages
 804         * send canned EAP failure if RADIUS server sends Access-Reject without
 805           EAP message (previously, Supplicant was not notified in this case)
 806         * fixed mixed WPA-PSK and WPA-EAP mode to work with WPA-PSK (i.e., do
 807           not start EAPOL state machines if the STA selected to use WPA-PSK)
 808
 809 2004-05-06 - v0.2.1
 810         * added WPA and IEEE 802.11i/RSN (WPA2) Authenticator functionality
 811           - based on IEEE 802.11i/D10.0 but modified to interoperate with WPA
 812             (i.e., IEEE 802.11i/D3.0)
 813           - supports WPA-only, RSN-only, and mixed WPA/RSN mode
 814           - both WPA-PSK and WPA-RADIUS/EAP are supported
 815           - PMKSA caching and pre-authentication
 816           - new hostapd.conf variables: wpa, wpa_psk, wpa_passphrase,
 817             wpa_key_mgmt, wpa_pairwise, wpa_group_rekey, wpa_gmk_rekey,
 818             rsn_preauth, rsn_preauth_interfaces
 819         * fixed interim accounting to remove any pending accounting messages
 820           to the STA before sending a new one
 821
 822 2004-02-15 - v0.2.0
 823         * added support for Acct-Interim-Interval:
 824           - draft-ietf-radius-acct-interim-01.txt
 825           - use Acct-Interim-Interval attribute from Access-Accept if local
 826             'radius_acct_interim_interval' is not set
 827           - allow different update intervals for each STA
 828         * fixed event loop to call signal handlers only after returning from
 829           the real signal handler
 830         * reset sta->timeout_next after successful association to make sure
 831           that the previously registered inactivity timer will not remove the
 832           STA immediately (e.g., if STA deauthenticates and re-associates
 833           before the timer is triggered).
 834         * added new hostapd.conf variable, nas_identifier, that can be used to
 835           add an optional RADIUS Attribute, NAS-Identifier, into authentication
 836           and accounting messages
 837         * added support for Accounting-On and Accounting-Off messages
 838         * fixed accounting session handling to send Accounting-Start only once
 839           per session and not to send Accounting-Stop if the session was not
 840           initialized properly
 841         * fixed Accounting-Stop statistics in cases where the message was
 842           previously sent after the kernel entry for the STA (and/or IEEE
 843           802.1X data) was removed
 844
 845
 846 Note:
 847
 848 Older changes up to and including v0.1.0 are included in the ChangeLog
 849 of the Host AP driver.