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Commit Graph

51 Commits

Author SHA1 Message Date
James Prestwood
090ac03100 ie: expose vendor OUIs
In the same fashion as the WSC WFA OUI, ie.[ch] will now expose the
other vendor OUIs to avoid duplication across multiple files in IWD
as well as used in iwmon.
2019-07-15 12:42:22 -05:00
James Prestwood
ac933ad966 ie: add parsing/building for roaming consortium
Parses up to 3 (the max) roaming consortium OIs out of the roaming
consortium IE. If more OIs are available via ANQP the 'num_anqp_out'
value will be set to indicate how many more OIs are available.

Builds according to the hotspot 2.0 spec using the vendor specific
IE.
2019-07-12 14:02:18 -05:00
Denis Kenzior
7b48da5df2 ie: Update Capability field defines 2019-07-10 16:46:05 -05:00
Andrew Zaborowski
3bd265e02f ie: Add ie_tlv_encapsulate_p2p_payload 2019-07-08 13:41:18 -05:00
Andrew Zaborowski
5cb07ff116 ie: Add ie_tlv_extract_p2p_payload 2019-07-08 13:37:47 -05:00
James Prestwood
b09dbcd5ac ie: add parser/builder to handle OSEN
The OSEN AKM is nearly identical to the RSN IE, but differs slightly.
For one, OSEN is encapsulated into the vendor specific IE, and includes
the WFA OUI before the 'normal' RSN elements. OSEN also does not include
a WPA version, since its not technically WPA/WPA2.

Some of the RSN parsing was made common so both RSN/OSEN parsing could
use it.
2019-06-10 18:03:10 -05:00
James Prestwood
5d3b37e2e4 ie: add is_ie_wfa_ie
This checks if an IE tagged as vendor specific is a WiFi-Alliance
OUI. This is similar to how is_ie_wpa_ie works.
2019-06-07 16:15:09 -05:00
James Prestwood
2e0fed3d77 ie: add IE_RSN_AKM_SUITE_OSEN 2019-06-07 16:15:07 -05:00
James Prestwood
f3ad319e59 ie: add advertisement protocol definitions
802.11 defines GAS (generic advertisement service) which can be used
to query supported advertisement protocols from an AP before
authentication/association. Hotspot/OSEN only care about the ANQP
protocol, but the way the IE is structured potentially requires
iterating through several tuples before you reach the ANQP protocol
identifier. Because of this we define all protocol identifiers.
2019-06-05 16:53:11 -05:00
James Prestwood
1accf534dc ie: allow 24 byte FTE MIC
FT over FILS-SHA384 uses a 24 byte FT MIC rather than the 16 byte MIC
used for all other AKMs. This change allows both the FT builder/parser
to handle both lengths of MIC. The mic length is now passed directly
into ie_parse_fast_bss_transition and ie_build_fast_bss_transition
2019-05-23 15:23:08 -05:00
James Prestwood
8ceb4a31ef ie: remove unused struct declaration 2019-04-26 12:23:36 -05:00
James Prestwood
d2e7d47c84 ie: fix ie_tlv_builder semantics
The TLV builder APIs were not very intuative, and in some (or all)
cases required access to the builder structure directly, either to
set the TLV buffer or to get the buffer at the end.

This change adds a new API, ie_tlv_builder_set_data, which both sets
the length for the current TLV and copies the TLV data in one go.
This will avoid the need for memcpy(ie_tlv_builder_get_data(...),...)

ie_tlv_builder_finalize was also changed to return a pointer to the
start of the build buffer. This will eliminate the need to access
builder.tlv after building the TLVs.

ie_tlv_builder_init was changed to take an optional buffer to hold
the TLV data. Passing NULL/0 will build the TLV in the internal
buffer. Passing in a pointer and length will build into the passed
in buffer.
2019-04-23 12:56:20 -05:00
James Prestwood
a2e711faf4 ie: crypto: add FILS AKMs
ie_rsn_info had to be updated to allow for 32 bit AKM values rather than
16 bit.
2019-04-04 16:11:07 -05:00
James Prestwood
cb9a0ed922 ie: add FILS IEs 2019-04-04 16:09:13 -05:00
James Prestwood
49b02907a8 ie: scan: use VHT rates in scan ranking
This adds support for parsing the VHT IE, which allows a BSS supporting
VHT (80211ac) to be ranked higher than a BSS supporting only HT/basic
rates. Now, with basic/HT/VHT parsing we can calculate the theoretical
maximum data rate for all three and rank the BSS based on that.
2019-02-25 15:07:41 -06:00
James Prestwood
ad2bf340a4 ie: scan: use HT rates in scan ranking
This adds HT IE parsing and data rate calculation for HT (80211n)
rates. Now, a BSS supporting HT rates will be ranked higher than
a basic rate BSS, assuming the RSSI is at an acceptable level.
2019-02-25 11:52:58 -06:00
James Prestwood
7d7fcff03b ie: scan: take into account RSSI when parsing data rate
The spec dictates RSSI thresholds for different modulation schemes, which
correlate to different data rates. Until now were were ranking a BSS with
only looking at its advertised data rate, which may not even be possible
if the RSSI does not meet the threshold.

Now, RSSI is taken into consideration and the data rate returned from
parsing (Ext) Supported Rates IE(s) will reflect that.
2019-02-22 17:44:06 -06:00
James Prestwood
922e10e82c ie: add macro for calculating an IE's length
All over the place we do "ie[1] + 2" for getting the IE length. It
is much clearer to use a macro to do this. The macro also checks
for NULL, and returns zero in this case.
2019-02-22 17:41:11 -06:00
James Prestwood
3293bd9933 ie: add OWE AKM type
Added a new AKM suite, IE_RSN_AKM_SUITE_OWE.
2018-11-16 16:59:45 -06:00
James Prestwood
9b204a8c7e ie: add IE_TYPE_OWE_DH_PARAM to IE list 2018-11-16 16:20:59 -06:00
James Prestwood
8064cb599a ie: introduce IE_AKM_IS_SAE macro
To prepare for FT over SAE, several case/if statements needed to include
IE_RSN_AKM_SUITE_FT_OVER_SAE. Also a new macro was introduced to remove
duplicate if statement code checking for both FT_OVER_SAE and SAE AKM's.
2018-09-21 11:26:05 -05:00
Denis Kenzior
46a797043a ie: Add AKMs from 802.11-2016 2018-07-19 11:09:08 -05:00
Denis Kenzior
e4ddf4cf19 ie: Add missing #include and forward declaration 2018-05-24 15:54:32 -05:00
Andrew Zaborowski
bc30c94044 ie: Add IE tags new in 802.11-2016
Add new IEs including the Extended Element IDs, for which I make a
convention of using 256 + the actual value to differentiate from old
Element IDs.
2017-09-22 10:10:37 -05:00
Andrew Zaborowski
9ceca7a521 ie: Parse GTK and IGTK subelements in FTE
Parse the contents of the GTK and IGTK subelements in an FT IE instead
of working with buffers containing the whole subelement.  Some more
validation of the subelement contents.  Drop support for GTK / IGTK when
building the FTE (unused).
2017-02-01 10:02:14 -06:00
Andrew Zaborowski
1b99521e98 ie: Implement ie_parse_neighbor_report 2016-11-03 09:59:49 -05:00
Andrew Zaborowski
1720edfc0e scan: Save Neighbor Report capability bit in bss scan entry 2016-10-29 22:57:07 -05:00
Andrew Zaborowski
e4c168cc3b ie: Fast BSS Transition IE utilities 2016-10-29 22:53:14 -05:00
Andrew Zaborowski
b20f1a2d50 ie: Mobility Domain IE utilities 2016-10-28 11:28:21 -05:00
Denis Kenzior
8261dab46b ie: Add ie_tlv_encapsulate_wsc_payload 2015-09-10 22:30:43 -05:00
Denis Kenzior
c2aa596dd4 ie: Tweak function signature 2015-09-10 22:29:58 -05:00
Denis Kenzior
2fdf03cb84 ie: Rearrange header order 2015-07-13 13:26:55 -05:00
Denis Kenzior
0bf7fffbac ie: fix whitespace 2015-07-09 14:20:59 -05:00
Denis Kenzior
3442736869 ie: add ie_tlv_extract_wsc_payload 2015-07-09 14:20:10 -05:00
Denis Kenzior
7cded805ce ie: Add [extended] supported rates parser 2015-06-10 16:28:12 -05:00
Denis Kenzior
baa97b13e9 ie: Add BSS Load parser 2015-06-10 10:39:33 -05:00
Denis Kenzior
d4cdd74ae0 ie: Add ie_rsn_cipher_suite_to_cipher 2015-05-21 20:58:42 -05:00
Ravi kumar Veeramally
b9007cbc9a ie: Provide a utility to build WPA IE
Build WPA IE based on vendor specific data.
2015-03-16 12:06:49 -05:00
Ravi kumar Veeramally
50c7346d19 ie: Parse vendor specific IE
Currently it supports Microsoft vendor specific information element
with version and type value 1 only. Typically it contains WPA security
related information.
2015-03-16 12:01:59 -05:00
Denis Kenzior
b1ca41b476 ie: Add length/data/tag inline getters 2015-02-24 17:11:27 -06:00
Denis Kenzior
fc60014d47 ie: Add ie_build_rsne 2015-02-03 21:45:14 -06:00
Jukka Rissanen
27b45f926b ie: Add capability enum 2015-01-28 12:33:47 -06:00
Denis Kenzior
2be20e6644 ie: Add RSNE parser that works on raw data 2015-01-15 23:59:18 -06:00
Denis Kenzior
2d8f1cca0b ie: Add initial parser for RSN Elements
As found in 802.11 Section 8.4.2.27.  Currently the parser does not
handle the Capabilities, Group Management Cipher Suite or PMKID related
fields.
2015-01-15 23:59:18 -06:00
Denis Kenzior
c3e9e2fc9b ie: Add ie_rsn_akm_suite enum
Using values from Table 8-101
2015-01-15 23:59:18 -06:00
Denis Kenzior
155a1f169a ie: Add ie_rsn_cipher_suite enum
Using values from Table 8-99
2015-01-15 23:59:18 -06:00
Marcel Holtmann
34d8b0d308 ie: Keep copyright notice the same for all source files 2014-08-03 08:14:16 +02:00
Jukka Rissanen
b90d914a3f ie: Adding IE builder support
These functions can be used to create IE TLV messages.
2014-07-31 09:58:58 -05:00
Jukka Rissanen
61245bc14e ie: Adding function to recurse when reading
This function is needed when building recursive IE.
2014-07-15 19:19:04 -05:00
Jukka Rissanen
458ac1aba4 ie: Simple informational element parser
The parsing API goes through the byte stream and parses the
TLV (Type, Length and Value) values and avoids data copying.
2014-07-15 19:18:08 -05:00