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Commit Graph

3838 Commits

Author SHA1 Message Date
James Prestwood
f9aeee8707 auto-t: add Hotspot autotest 2019-06-27 13:01:00 -05:00
James Prestwood
8c0e1f62fc network: allow connections to hotspot networks 2019-06-26 23:16:38 -05:00
James Prestwood
23a7a5a614 station: allow connections to Hotspot networks
After a scan, station can now pause future scans and start ANQP requests
to discover Hotspot's NAI realm. This lets us check if the AP's NAI realm
matches any stored hotspot configuration files. If so we can connect to
this network. If the network provides an HESSID and a matching one is
found in a hotspot provisioning file we can skip ANQP and directly connect
as this is expected to be our 'home network'
2019-06-26 23:16:23 -05:00
James Prestwood
99ce41b405 netdev: remove anqp_request functionality 2019-06-26 23:09:49 -05:00
James Prestwood
3979785703 main: add anqp_init/exit 2019-06-26 23:09:47 -05:00
James Prestwood
0bde59ca13 anqp: move request functionality into anqp.c
The actual ANQP request was handled by netdev, but in the case of P2P
their may be no netdev. For this reason all functionality needed for
an ANQP request has been moved into anqp.c. There are still a few netdev
references, which need to be removed when P2P is introduced. Leaving them
in for now as its still going to work as a first pass implementation
2019-06-26 23:09:23 -05:00
James Prestwood
be9e926c6a nl80211util: move CMD_FRAME builder into nl80211util
This will be needed outside of netdev
2019-06-26 22:52:56 -05:00
James Prestwood
53d6a3b8da doc: add hotspot documentation 2019-06-26 14:29:51 -05:00
James Prestwood
3d1f1eb21c main: create .hotspot directory if it does not exist 2019-06-26 14:29:48 -05:00
James Prestwood
537fcd12ca anqp: rework NAI Realm parsing
The initial ANQP parser design did not work well with how the hotspot
implementation was turning out. For one, much care was taken into parsing
the EAP credentials which are not really required. The assumption is
that any hotspot network will already be provisioned, so checking that
the EAP parameters match is a bit overkill. Instead only the NAI Realms
will be checked. This greatly simplifies the NAI realm parser, as now it
can just return a string list of realms instead of the full EAP
credential info.
2019-06-26 14:28:07 -05:00
James Prestwood
a5f2710d05 hotspot: add hotspot module
This module will be in charge of managing Hotspot provisioning files
stored under the .hotspot/ directory. This includes a dir watch to
handle file changes/removal as well as an API to match a network
object to a hotspot provisioning file.
2019-06-26 14:25:11 -05:00
James Prestwood
273f0d358b doc: add disable_anqp option
The way IWD does ANQP depends on a recent kernel patch so its best if
we have ANQP disabled by default. In addition it has been found some
drivers do public action frames very badly, resulting in freezes or
crashes. If users are feeling brave, or are confident they're system
can handle ANQP properly they can enable this.

Enabling this option is required for Hotspot 2.0 support
2019-06-26 13:38:32 -05:00
James Prestwood
701a5cc41e network: store HESSID and NAI Realms in network object
Hotspot networks are supposed to include an HESSID in the scan
results. This is more or less an identifier for the overall
network. In addition, the NAI Realms can be obtained via ANQP
and should be the same for each BSS. Since both HESSID and NAI
realms should be the same for a given network in range we can
store these values in the network object itself. This also allows
us to easily find hotspot configuration files by looking at
the HESSID/NAI Realms directly in the network object as opposed
to individual scan_bss's.
2019-06-26 13:23:22 -05:00
James Prestwood
d63c8290a9 scan: add suspend/resume scan APIs
In order to do ANQP efficiently IWD needs the ability to suspend scanning
temporarily. This is because both scanning and ANQP go offchannel and must
remain off channel for some amount of time. This cannot be done
simultaneously and if e.g. ANQP is requested after a scan is already
pending, the kernel will wait till that scan finishes before sending out
the frame.
2019-06-26 13:09:48 -05:00
James Prestwood
45130ec5ee scan: parse interworking element 2019-06-26 13:07:24 -05:00
Denis Kenzior
f0848cc44a rtnlutil: Don't use explicit_bzero
Use memset instead.  explicit_bzero should only be used when we're
wiping a secret just prior to the encopassing storage being freed.  The
compiler would usually optimize away the memset, leaving the secrets
around.

In rtnlutil we're simply zeroing the structure prior to filling it, so
the use of explicit_bzero is not needed and brings confusion to the
reader since no secrets are being wiped.
2019-06-26 10:43:38 -05:00
Tim Kourt
0706a357a4 station: Integrate netconfig into station creation and removal 2019-06-26 10:40:59 -05:00
Tim Kourt
56e4dc549a netconfig: Enable config. with static IPv4 addresses 2019-06-26 10:39:50 -05:00
Tim Kourt
d80d1d5f1a netconfig: Implement address installation and removal 2019-06-26 10:38:14 -05:00
Tim Kourt
6aabd80051 rtnlutil: Utils to Add/Remove IPv4 addresses 2019-06-26 10:36:59 -05:00
Tim Kourt
b70ff5d091 netconfig: Add station state watch
netconfig is interested in three station states: connected,
disconnected and connected after it has roamed. On connected
it tries to obtain a new DHCP lease, on disconnected it stops
the DHCP client and discards all addresses from interface, on
connected after roaming it will try to request a previously
issued address.
2019-06-26 10:34:35 -05:00
Tim Kourt
3d40f3a38b netconfig: Introduce IPv4 DHCP client
The client is used to obtain and configure the dynamic IPv4
addresses for the network.
2019-06-26 10:28:18 -05:00
Tim Kourt
1368851611 netconfig: Obtain all currently assigned IPv4 addresses 2019-06-26 10:27:27 -05:00
Tim Kourt
9b0838d07c netconfig: Subscribe for IPv4 link address notifications
iwd keeps track of the addresses assigned to the managed
interfaces. The list of assigned IPv4/IPv6 addresses is stored
in ifaddr_list inside of netconfig. The tracking of the IP
addresses will help to remove them from an interface once they
are no longer valid.
2019-06-26 10:27:00 -05:00
Tim Kourt
f3f343c04b rtnlutil: Add parser for ifaddrmsg struct
Its purpose is to extract interface label, ip, and
broadcast addresses out of ifaddrmsg rntl message.
2019-06-26 10:26:26 -05:00
Tim Kourt
4e3e1fbf60 netconfig: Introduce netconfig module
netconfig module will be responsible for the orchestration
of the network configuration with the IP addresses.

iwd creates one netconfig structure per interface index.
The purpose of this struct is to hold all of the interface
related addressing states such as: assigned dhcp
clients, known addresses, routes, etc.
2019-06-26 10:25:57 -05:00
Denis Kenzior
b89e0c9756 TODO: Add task for diagnostics interface 2019-06-24 12:47:10 -05:00
Denis Kenzior
cd67e66f8e monitor: Fix ARRAY output
Commit 3ff9f59ba1 ("monitor: Print MAC_ADDRS array") introduced a
small bug where some arguments were erroneously printed as an address.
2019-06-22 12:38:35 -05:00
Denis Kenzior
397699c9c5 manager: Fix memory leak 2019-06-21 12:22:48 -05:00
Denis Kenzior
3ff9f59ba1 monitor: Print MAC_ADDRS array 2019-06-21 12:22:08 -05:00
James Prestwood
2fd58141a4 scan: fix formatting in scan.h
Replaced two 8-spaced indentation to tabs.
2019-06-18 13:29:27 -05:00
James Prestwood
baf6b3ee4d netdev: optimize GAS request timeout
A not-yet-merged kernel patch will enable the FRAME_WAIT_CANCEL
event to be emitted when a CMD_FRAME duration expires. This can
shortcut the ridiculously long timeout that is required making
GAS requests with no response drastically quicker to handle.
2019-06-14 17:42:13 -05:00
James Prestwood
1e33eaa072 scan: free osen IE 2019-06-14 17:41:57 -05:00
James Prestwood
3a8b9a5d0c netdev: support basic ANQP requests
This adds a new API netdev_anqp_request which will send out a GAS
request, parses the GAS portion of the response and forwards the
ANQP response to the callers callback.
2019-06-14 17:40:39 -05:00
James Prestwood
bed116e319 scan: add new hs20_capable member to scan_bss
If the BSS is Hotspot 2.0 capable this will get set
2019-06-14 16:24:38 -05:00
James Prestwood
cb8d592b13 scan: parse Advertisement Protocol Element
This IE tells us what Advertisement Protocols the AP supports. This
is only here to look for ANQP support, so all this does is iterate
through all other Advertisement Protocol tuples looking for ANQP.
If found, anqp_capable is set in the scan_bss
2019-06-14 16:22:36 -05:00
Denis Kenzior
b8d60bb848 anqp: Fix l_strlcpy usage 2019-06-14 16:22:22 -05:00
James Prestwood
2ce5277f6d anqp: added utility for parsing ANQP responses
Currently these are geared to support the WiFi Alliance Hotspot 2.0
ANQP elements, which all fall under the vendor specific ANQP element.

anqp_iter_next behaves similar to the genl parsers, where the id, length
and data will be returned as out parameters. Currently there is only
vendor support for Hotspot 2.0. anqp_iter_is_hs20 can be used to setup
the subtype, length, and data pointer to parse any Hotspot 2.0 ANQP
elements. From here the subtype can be checked and a vendor specific
parser for that subtype can be used to parse the data, e.g.
hs20_parse_osu_provider_nai.
2019-06-14 16:09:29 -05:00
James Prestwood
77a6b49803 wiphy: parse OFFCHANNEL_TX_OK attribute
The wiphy can indicate if it supports sending offchannel frames. This
allows us to bail out of a Hotspot connection early if this is not
supported.
2019-06-14 13:33:35 -05:00
James Prestwood
65eeab1313 auto-t: updated autotests to use hwsim.get_radio
This removes all the duplicated code where the interfaces are iterated
and the radio/hostapd instances are created. Instead the two new APIs
are used to get each instance, e.g.:

hapd = HostapdCLI(config='ssid.conf')
radio = hwsim.get_radio('radX')
2019-06-11 11:44:00 -05:00
James Prestwood
0c554500e1 auto-t: add simple getter for radios 2019-06-11 11:44:00 -05:00
James Prestwood
38bb528c71 doc: document ManagementFrameProtection 2019-06-10 18:33:59 -05:00
James Prestwood
e38cbcd31b station: support OSEN IE setting in handshake
The check for MFP is now skipped for OSEN as it should not be set for
this AKM.
2019-06-10 18:25:01 -05:00
James Prestwood
c62ca4e185 scan: update vendor specific IE parsing to handle WFA
The vendor specific IE was being parsed only to check if the AP supported
WPA, which used a Microsoft OUI. Hotspot/OSEN uses neither WPA or RSN
(although its nearly identical to RSN) so the we also need to check for
this Wifi-Alliance OUI and set bss->osen (new) if found.
2019-06-10 18:23:21 -05:00
James Prestwood
d3baec4eee eapol: add eapol_find_osen
The OSEN AKM uses the vendor specific IE, so when finding the RSNE
element we need to handle it specially to ensure that its both
a vendor specific element and it matches the WFA OUI since other
vendor specific elements may be included.
2019-06-10 18:22:44 -05:00
James Prestwood
058d65c686 handshake: handle OSEN AKM when setting IEs 2019-06-10 18:21:57 -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
08a3775821 station: fix compiler error after bss_free change 2019-06-10 15:19:11 -05:00
James Prestwood
0ec9618b5f station: remove print in bss_free
In environments with many APs, the debug log is spammed with this print,
which isn't particularly useful to the average user.
2019-06-10 14:15:02 -05:00
James Prestwood
039ae3659b eapol: handshake: add OSEN AKM
The handshake procedure for OSEN is part of the 'AKM_DEFINED' group
of AKMs.
2019-06-07 17:10:49 -05:00