Commit graph

509 commits

Author SHA1 Message Date
Jouni Malinen
351f09a221 WPS: Added support for fragmented WPS IE in Beacon and Probe Response
Fragment WPS IE if needed to fit into the IE length limits in hostapd
and Reassemble WPS IE data from multiple IEs in wpa_supplicant.

In addition, moved WPS code from events.c into wps_supplicant.c to clean
up module interfaces.
2008-11-29 22:06:34 +02:00
Jouni Malinen
ad08c3633c Added preliminary Wi-Fi Protected Setup (WPS) implementation
This adds WPS support for both hostapd and wpa_supplicant. Both programs
can be configured to act as WPS Enrollee and Registrar. Both PBC and PIN
methods are supported.

Currently, hostapd has more complete configuration option for WPS
parameters and wpa_supplicant configuration style will likely change in
the future. External Registrars are not yet supported in hostapd or
wpa_supplicant. While wpa_supplicant has initial support for acting as
an Registrar to configure an AP, this is still using number of hardcoded
parameters which will need to be made configurable for proper operation.
2008-11-23 19:34:26 +02:00
Jouni Malinen
46690a3b9b Added an optional mitigation mechanism for certain attacks against TKIP by
delaying Michael MIC error reports by a random amount of time between 0 and
60 seconds if multiple Michael MIC failures are detected with the same PTK
(i.e., the Authenticator does not rekey PTK on first failure report). This
is disabled by default and can be enabled with a build option
CONFIG_DELAYED_MIC_ERROR_REPORT=y in .config.

This may help in making a chopchop attack take much longer time by forcing
the attacker to wait 60 seconds before knowing whether a modified frame
resulted in a MIC failure.
2008-11-08 04:43:12 +02:00
Jouni Malinen
9cf32261ee Split wpa_supplicant_select_bss() into three and remove odd debug message
This function was getting way too long, so let's split it into WPA and
non-WPA cases as separate functions. In addition, remove the confusing
"Try to find non-WPA AP" debug message if a WPA-enabled AP is already
selected (as reported by Andriy Tkachuk).
2008-09-26 17:24:40 +03:00
Dan Nicholson
23e072374e Don't post scan results when initial scan is emtpy
When the initial scan is made, just the cached results from the driver
are used. If this is empty, it's useless to post the results since
another scan is being scheduled immediately. This just causes extra
processing from listeners for no gain.
2008-09-24 12:51:08 +03:00
Jouni Malinen
565861976d Added support for using SHA256-based stronger key derivation for WPA2
IEEE 802.11w/D6.0 defines new AKMPs to indicate SHA256-based algorithms for
key derivation (and AES-CMAC for EAPOL-Key MIC). Add support for using new
AKMPs and clean up AKMP processing with helper functions in defs.h.
2008-08-31 22:57:28 +03:00
Jouni Malinen
0b60b0aaad Updated MFP defines based on IEEE 802.11w/D6.0 and use new MFPC/MFPR
This adds most of the new frame format and identifier definitions from IEEE
802.11w/D6.0. In addition, the RSN IE capability field values for MFP is
replaced with the new two-bit version with MFPC (capable) and MFPR
(required) processing.
2008-08-30 14:59:39 +03:00
Jouni Malinen
a8e16edc86 Introduced new helper function is_zero_ether_addr()
Use this inline function to replace os_memcmp(addr,
"\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0.
2008-06-03 18:08:48 +03:00
Jouni Malinen
6fc6879bd5 Re-initialize hostapd/wpa_supplicant git repository based on 0.6.3 release 2008-02-27 17:34:43 -08:00