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Commit Graph

1955 Commits

Author SHA1 Message Date
James Prestwood
1d62f4ec0e eapol: remove unused public eapol functions from header
After moving AP EAPoL code into eapol.c there were a few functions that
no longer needed to be public API's. These were changed to static's and
the header definition was removed.
2018-11-02 14:05:44 -05:00
Marcel Holtmann
554e4f55db build: Fix includes for using with -std=c99 compiler option 2018-11-01 22:37:11 +01:00
Marcel Holtmann
72a64fa7fb build: Adjust to the latest ELL signal API changes 2018-11-01 22:09:19 +01:00
Andrew Zaborowski
e4222d0ebe eap-tls: Set upper limit on request size
Set an upper limit on a fragmented EAP-TLS request size similar to how
we do it in EAP-TTLS.  While there make the code more similar to the
EAP-TTLS flag processing to keep them closer in sync.  Note that the
spec suggests a 64KB limit but it's not clear if that is for the TLS
record or EAP request although it takes into account the whole TLS
negotiation so it might be good for both.
2018-11-01 15:04:56 -05:00
Andrew Zaborowski
0b71b034c1 eap-tls/ttls/peap: Conditionally enable TLS debugging
Print the TLS debug messages if IWD_TLS_DEBUG is set.
2018-11-01 15:04:56 -05:00
Marcel Holtmann
a011909556 main: Use l_main_run_with_signal instead of open coding it 2018-11-01 19:56:16 +01:00
Marcel Holtmann
38e831afa0 main: Make genl and nl80211 global variables static 2018-11-01 19:55:54 +01:00
Marcel Holtmann
013bae6d3d eapol: Make eapol_frame_watch_{add,remove} functions static 2018-11-01 10:27:22 +01:00
Marcel Holtmann
9335602ba0 network: Removed unneeded include for src/watchlist.h 2018-11-01 10:19:26 +01:00
Marcel Holtmann
e1c391a76b wsc: Removed unneeded include for src/watchlist.h 2018-11-01 10:17:54 +01:00
Denis Kenzior
7699c8ab1e eap-ttls: Handle redundant L flags
Some of the TTLS server implementations set the L flag in the fragment
packets other than the first one. To stay interoperable with such devices,
iwd is relaxing the L bit check.
2018-10-30 15:47:57 -05:00
Denis Kenzior
5cc60d18cc eap-md5: Add warning about deprecated settings key 2018-10-29 18:49:19 -05:00
Tim Kourt
99c685940a eap-md5: Standardize setting keys
Switch EAP-MD5 to use the common password setting key nomenclature.
The key name has been changed from PREFIX-MD5-Secret to PREFIX-Password.
Note: The old key name is supported.
In addition, this patch adds an ability to request Identity and/or
Password from user.
2018-10-29 18:46:07 -05:00
James Prestwood
b9029aaf65 adhoc: wait for both handshakes before adding peer
Adhoc was not waiting for BOTH handshakes to complete before adding the
new peer to the ConnectedPeers property. Actually waiting for the gtk/igtk
(in a previous commit) helps with this, but adhoc also needed to keep track
of which handshakes had completed, and only add the peer once BOTH were done.
This required a small change in netdev, where we memcmp the addresses from
both handshakes and only set the PTK on one.
2018-10-26 15:29:48 -05:00
James Prestwood
e678d6655f netdev: signal handshake complete after setting all keys
Currently, netdev triggers the HANDSHAKE_COMPLETE event after completing
the SET_STATION (after setting the pairwise key). Depending on the timing
this may happen before the GTK/IGTK are set which will result in group
traffic not working initially (the GTK/IGTK would still get set, but group
traffic would not work immediately after DBus said you were connected, this
mainly poses a problem with autotests).

In order to fix this, several flags were added in netdev_handshake_state:
ptk_installed, gtk_installed, igtk_installed, and completed. Each of these
flags are set true when their respective keys are set, and in each key
callback we try to trigger the handshake complete event (assuming all the
flags are true). Initially the gtk/igtk flags are set to true, for reasons
explained below.

In the WPA2 case, all the key setter functions are called sequentially from
eapol. With this change, the PTK is now set AFTER the gtk/igtk. This is
because the gtk/igtk are optional and only set if group traffic is allowed.
If the gtk/igtk are not used, we set the PTK and can immediately trigger the
handshake complete event (since gtk_installed/igtk_installed are initialized
as true). When the gtk/igtk are being set, we immediately set their flags to
false and wait for their callbacks in addition to the PTK callback. Doing it
this way handles both group traffic and non group traffic paths.

WPA1 throws a wrench into this since the group keys are obtained in a
separate handshake. For this case a new flag was added to the handshake_state,
'wait_for_gtk'. This allows netdev to set the PTK after the initial 4-way,
but still wait for the gtk/igtk setters to get called before triggering the
handshake complete event. As a precaution, netdev sets a timeout that will
trigger if the gtk/igtk setters are never called. In this case we can still
complete the connection, but print a warning that group traffic will not be
allowed.
2018-10-26 15:26:49 -05:00
Marcel Holtmann
9b2bb2723f crypto: Use full include path local includes 2018-10-26 21:35:27 +02:00
Marcel Holtmann
77710f9765 simauth: Use full include path local includes 2018-10-26 21:34:58 +02:00
Marcel Holtmann
515c130549 storage: Use full include path local includes 2018-10-26 21:34:00 +02:00
Marcel Holtmann
0b93fde3b4 wscutil: Use full include path local includes 2018-10-26 21:33:38 +02:00
Marcel Holtmann
162e6a19f6 watchlist: Use full include path local includes 2018-10-26 21:33:01 +02:00
Marcel Holtmann
1eaca1f8e1 mscaputil: Use full include path local includes 2018-10-26 21:32:20 +02:00
Marcel Holtmann
3fa63ede50 eapol: Use full include path local includes 2018-10-26 21:31:52 +02:00
Marcel Holtmann
c2d0517228 knownnetworks: Use full include path local includes 2018-10-26 21:30:44 +02:00
Marcel Holtmann
e92b976663 ecc: Use full include path local includes 2018-10-26 21:29:45 +02:00
Marcel Holtmann
42cfaeb265 sae: Use full include path local includes 2018-10-26 21:29:08 +02:00
Marcel Holtmann
785be02ee5 mpdu: Use full include path local includes 2018-10-26 21:28:10 +02:00
Marcel Holtmann
52f7f1dea2 handshake: Use full include path local includes 2018-10-26 21:27:01 +02:00
Marcel Holtmann
23a7fafec6 ie: Use full include path for local includes 2018-10-26 21:26:17 +02:00
Marcel Holtmann
be5bf7ee15 util: Only include <ell/ell.h> and use full include path 2018-10-26 21:24:20 +02:00
Denis Kenzior
a2efe2d2de eap-pwd: Warn if deprecated setting is used 2018-10-25 14:52:30 -05:00
Tim Kourt
df59d57f96 eap-pwd: Standardize setting keys
Switch EAP-PWD to use the common password setting key nomenclature.
2018-10-25 14:29:56 -05:00
Denis Kenzior
c256dbfbd8 eap-gtc: Warn if deprecated setting is used 2018-10-25 14:25:28 -05:00
Tim Kourt
c92f8231b2 eap-gtc: Standardize property keys
Switch EAP-GTC to use the common password setting key nomenclature.
2018-10-25 14:14:16 -05:00
Tim Kourt
e8de229223 ttls: add support for tunneled MS-CHAP 2018-10-24 16:33:06 -05:00
Tim Kourt
b46376980a mschaputil: Add MS CHAP utilities 2018-10-24 16:28:46 -05:00
Denis Kenzior
ae538eae7d netdev: Cancel ongoing rekey offload
We need to cancel an ongoing rekey offload in a few additional places
besides the netdev destructor.
2018-10-20 10:38:56 -05:00
Denis Kenzior
8501b2edb1 netdev: Add a TODO about Rekey Offload errors 2018-10-20 10:36:42 -05:00
Denis Kenzior
658362a349 netdev: Put command cancelation into a common function 2018-10-20 10:35:28 -05:00
Tim Kourt
e979bf97f1 netdev: add an ability to cancel hw rekey cmd
==1628== Invalid read of size 1
==1628==    at 0x405E71: hardware_rekey_cb (netdev.c:1381)
==1628==    by 0x444E5B: process_unicast (genl.c:415)
==1628==    by 0x444E5B: received_data (genl.c:534)
==1628==    by 0x442032: io_callback (io.c:126)
==1628==    by 0x4414CD: l_main_iterate (main.c:387)
==1628==    by 0x44158B: l_main_run (main.c:434)
==1628==    by 0x403775: main (main.c:489)
==1628==  Address 0x5475208 is 312 bytes inside a block of size 320 free'd
==1628==    at 0x4C2ED18: free (vg_replace_malloc.c:530)
==1628==    by 0x43D94D: l_queue_clear (queue.c:107)
==1628==    by 0x43D998: l_queue_destroy (queue.c:82)
==1628==    by 0x40B431: netdev_shutdown (netdev.c:4765)
==1628==    by 0x403B17: iwd_shutdown (main.c:81)
==1628==    by 0x4419D2: signal_callback (signal.c:82)
==1628==    by 0x4414CD: l_main_iterate (main.c:387)
==1628==    by 0x44158B: l_main_run (main.c:434)
==1628==    by 0x403775: main (main.c:489)
==1628==  Block was alloc'd at
==1628==    at 0x4C2DB6B: malloc (vg_replace_malloc.c:299)
==1628==    by 0x43CA4D: l_malloc (util.c:62)
==1628==    by 0x40A853: netdev_create_from_genl (netdev.c:4517)
==1628==    by 0x444E5B: process_unicast (genl.c:415)
==1628==    by 0x444E5B: received_data (genl.c:534)
==1628==    by 0x442032: io_callback (io.c:126)
==1628==    by 0x4414CD: l_main_iterate (main.c:387)
==1628==    by 0x44158B: l_main_run (main.c:434)
==1628==    by 0x403775: main (main.c:489)
2018-10-20 10:29:52 -05:00
Marcel Holtmann
a59e162446 knownnetworks: Use l_dir_watch instead of l_fswatch 2018-10-19 19:14:05 +02:00
Marcel Holtmann
8f8a214fbd build: Use new l_tls_prf_get_bytes and remove ell/tls-private.h usage 2018-10-19 09:30:59 +02:00
Marcel Holtmann
467d3958b4 build: Use l_tls_prf_get_bytes instead of tls_prf_get_bytes 2018-10-19 08:46:57 +02:00
Marcel Holtmann
b27edce298 build: Use include "" instead of include <> for ell/tls-private.h 2018-10-19 08:24:57 +02:00
Denis Kenzior
d22e57c994 treewide: Remove use of key-private.h 2018-10-19 00:31:41 -05:00
Denis Kenzior
6e8f10f695 eap-ttls: Use iwd's version of align_len
No need to include ell's private bits unnecessarily
2018-10-19 00:20:47 -05:00
Denis Kenzior
770f3c6049 dbus: Remove unneeded include 2018-10-19 00:20:35 -05:00
Marcel Holtmann
1ee7de15c8 ttls: Fix truncated before the last format character 2018-10-14 11:35:48 +02:00
Marcel Holtmann
a3c1fa28da build: Rename nl80211_util.[ch] into nl80211util.[ch] 2018-10-14 05:41:06 +02:00
James Prestwood
70d6c9c692 adhoc: implement setting TX GTK
Adhoc requires 2 GTK's to be set, a single TX GTK and a per-mac RX GTK.
The per-mac RX GTK already gets set via netdev_set_gtk. The single TX GTK
is created the same as AP, where, upon the first station connecting a GTK
is generated and set in the kernel. Then any subsequent stations use
GET_KEY to retrieve the GTK and set it in the handshake.
2018-10-08 21:38:30 -05:00
James Prestwood
2123d613fc nl80211: support per-mac GTK on _new_key_group
AdHoc will require a per-mac GTK to be set. For this reason
nl80211_build_new_key_group has been updated to optionally take
a MAC address.
2018-10-08 21:35:33 -05:00
James Prestwood
5e5caedb90 nl80211: added verifier/parser for GET_KEY
AdHoc will also need the same functionality to verify and parse the
key sequence from GET_KEY. This block of code was moved from AP's
GET_KEY callback into nl80211_parse_get_key_seq.
2018-10-08 21:35:24 -05:00
James Prestwood
60aba7114e nl80211: make SET_KEY/GET_KEY common
Moved AP helpers for building SET_KEY/GET_KEY commands into
nl80211_util.c
2018-10-08 21:35:12 -05:00
James Prestwood
04a9315a3c nl80211: introduce nl80211 utility API's
Netdev/AP share several NL80211 commands and each has their own
builder API's. These were moved into a common file nl80211_util.[ch].

A helper was added to AP for building NEW_STATION to make the associate
callback look cleaner (rather than manually building NEW_STATION).
2018-10-08 21:34:58 -05:00
Andrew Zaborowski
dc39c52525 station: Cancel ongoing scans in station_free
Make scan.c forget station's scan callbacks to prevent crash when
switching interface types with a scan running.
2018-10-08 11:33:53 -05:00
James Prestwood
395acc8203 netdev: simplify netdev_choose_key_address
The key address can be chosen regardless of iftype. The deciding
factor is the authenticator bit in the handshake.
2018-10-08 11:29:47 -05:00
Andrew Zaborowski
fb85b1d1a7 netdev: Check that netdev->device is not NULL
Check that netdev->device is not NULL before doing device_remove()
(which would crash) and emitting NETDEV_WATCH_EVENT_DEL.  It may be
NULL if the initial RTM_SETLINK has failed to bring device UP.
2018-10-04 20:57:33 -05:00
Andrew Zaborowski
6e70c84f8e station: Ignore ad-hoc networks in scan results
If there are Ad-hoc BSSes they should be present in the scan results
together with regular APs as far as scan.c is concerned.  But in
station mode we can't connect to them -- the Connect method will fail and
autoconnect would fail.  Since we have no property to indicate a
network is an IBSS just filter these results out for now.  There are
perhaps better solutions but the benefit is very low.
2018-10-03 16:56:19 -05:00
Tim Kourt
0682ddad37 ttls: change signature of the inner reset funcs 2018-10-01 17:30:29 -05:00
Tim Kourt
f0a86519e9 ttls: add support for tunneled CHAP 2018-10-01 17:14:19 -05:00
Tim Kourt
ba5cf86716 ttls: add support for tunneled PAP 2018-10-01 17:12:17 -05:00
Tim Kourt
aedf89ca37 ttls: remove load_settings from phase2_method 2018-10-01 17:11:39 -05:00
Tim Kourt
726ff5d2b1 ttls: exclude avp_builder_put_bytes 2018-10-01 17:11:10 -05:00
Tim Kourt
2aefd8badf ttls: improve avp build approach 2018-10-01 17:10:03 -05:00
Tim Kourt
e6bf22f8c9 ttls: add support for non eap auth settings 2018-09-26 17:55:44 -05:00
Tim Kourt
8f0c4a769a ttls: clear the obtained memory to prevent info leaks 2018-09-26 17:19:46 -05:00
Tim Kourt
3d77748bca ttls: change signature of the inner destroy funcs. 2018-09-26 17:19:05 -05:00
Tim Kourt
b2ec0c350a ttls: fix check on avp start 2018-09-25 16:23:40 -05:00
James Prestwood
50acc11f07 wiphy: added wiphy_select_akm
This is a replacement for station's static select_akm_suite. This was
done because wiphy can make a much more intellegent decision about the
akm suite by checking the wiphy supported features e.g. SAE support.

This allows a connection to hybrid WPA2/WPA3 AP's if SAE is not
supported in the kernel.
2018-09-25 10:58:04 -05:00
James Prestwood
272cb441cd wiphy: only connect to SAE if feature is supported 2018-09-25 10:56:06 -05:00
Andrew Zaborowski
36c441c945 ap: Set up the GTK and pass to handshake
Set a default GTK cipher type same as our current PTK type, generate a
random GTK when the first STA connects and set it up in the kernel, then
pass the values that EAPoL is going to need to the handshake_state.
2018-09-25 10:53:40 -05:00
Andrew Zaborowski
01edef9001 netdev: Reject setting powered while setting iftype
In netdev_set_powered also check that no NL80211_CMD_SET_INTERFACE is in
progress because once it returned we would overwrite
netdev->set_powered_cmd_id (could also add a check there but it seems
more logical to just disallow Powered property changes while Mode is
being changed, since we also disallow Mode changes while Powered is
being changed.)
2018-09-25 10:51:48 -05:00
Denis Kenzior
ebda2ce60f device: Remove unneeded includes 2018-09-24 19:29:40 -05:00
Denis Kenzior
87118959e6 device: Obtain station using station_find
Since device object no longer creates / destroys station objects, use
station_find inside ap directed roam events to direct these to the
station interface.
2018-09-24 19:27:04 -05:00
Andrew Zaborowski
8632b81397 eapol: Add GTK data to msg 3/4 of the handshake 2018-09-24 14:53:41 -05:00
Andrew Zaborowski
e4873dea5a handshake: Use enum handshake_kde in find_kde()
Since we have all the KDE types defined in enum handshake_kde use that
instead of uint8_t buffers containing the same values.
2018-09-24 14:24:41 -05:00
Andrew Zaborowski
7c779956ac handshake: Add handshake_util_build_gtk_kde utility 2018-09-24 14:24:41 -05:00
Andrew Zaborowski
68e612573e handshake: Add GTK data to handshake_state
Add places to store the GTK data, index and RSC in struct
handshake_state and add a setter function for these fields.  We may want
to also convert install_gtk to use these fields similar to install_ptk.
2018-09-24 14:24:41 -05:00
Denis Kenzior
7eb59602df netdev: Drop redundant netdev_get_device checks
As a consequence of the previous commit, netdev watches are always
called when the device object is valid.  As a result, we can drop the
netdev_get_device calls and checks from individual AP/AdHoc/Station/WSC
netdev watches
2018-09-24 14:12:43 -05:00
Andrew Zaborowski
916bde3a02 netdev: Don't emit events before NETDEV_WATCH_EVENT_NEW 2018-09-24 14:09:36 -05:00
Andrew Zaborowski
c96f44b2e6 station: Make station_create/station_free static
These two functions don't need to be used from outside of station.c
anymore so make them static and simplify the station_create arguments
slightly.
2018-09-24 14:07:03 -05:00
Andrew Zaborowski
567baed2c4 station: Create interface simliarly to AP, AdHoc interfaces
Instead of creating the Station interface in device.c create it directly
on the netdev watch event the same way that the AP and AdHoc interfaces
are created and freed.  This fixes some minor incosistencies, for
example station_free was previously called twice, once from device.c and
once from the netdev watch.

device.c would previously keep the pointer returned by station_create()
but that pointer was not actually useful so remove it.  Autotests still
seem to pass.
2018-09-24 14:05:03 -05:00
Andrew Zaborowski
daf248e1ba station: Disconnect netdev in station_free()
Call netdev_disconnect() to make netdev forget any of station.c's
callbacks for connections or transitions in progress or established.
Otherwise station.c will crash as soon as we're connected and try to
change interface mode:
==17601== Invalid read of size 8
==17601==    at 0x11DFA0: station_disconnect_event (station.c:775)
==17601==    by 0x11DFA0: station_netdev_event (station.c:1570)
==17601==    by 0x115D18: netdev_disconnect_event (netdev.c:868)
==17601==    by 0x115D18: netdev_mlme_notify (netdev.c:3403)
==17601==    by 0x14E287: l_queue_foreach (queue.c:441)
==17601==    by 0x1558B4: process_multicast (genl.c:469)
==17601==    by 0x1558B4: received_data (genl.c:532)
==17601==    by 0x152888: io_callback (io.c:123)
==17601==    by 0x151BCD: l_main_iterate (main.c:376)
==17601==    by 0x151C9B: l_main_run (main.c:423)
==17601==    by 0x10FE20: main (main.c:489)
2018-09-24 13:57:36 -05:00
Andrew Zaborowski
f9faeed7bb ap, adhoc: On NETDEV_WATCH_EVENT_NEW check device is UP
Since the interfaces are not supposed to exist when the device is DOWN
(we destroy the interfaces on NETDEV_WATCH_EVENT_DOWN too), don't
create the interfaces if the device hasn't been brought up yet.
2018-09-24 13:56:02 -05:00
Andrew Zaborowski
99e7e0d977 netdev: Update ifi_flags in rntl_set_powered callbacks
When we detect a new device we either bring it down and then up or only
up.  The IFF_UP flag in netdev->ifi_flags is updated before that, then
we send the two rtnl commands and then fire the NETDEV_WATCH_EVENT_NEW
event if either the bring up succeeded or -ERFKILL was returned, so the
device may either be UP or DOWN at that point.

It seems that a RTNL NEWLINK notification is usually received before
the RTNL command callback but I don't think this is guaranteed so update
the IFF_UP flag in the callbacks so that the NETDEV_WATCH_EVENT_NEW
handlers can reliably use netdev_get_is_up()
2018-09-24 13:54:24 -05:00
Andrew Zaborowski
ab6160b017 netdev: Drop DEFAULT_TYPES nl80211 attr of CMD_NEW_KEY
The NL80211_ATTR_KEY_DEFAULT_TYPES attribute is only parsed by the
kernel if either NL80211_ATTR_KEY_DEFAULT or
NL80211_ATTR_KEY_DEFAULT_MGMT are also present, however these are only
used with NL80211_CMD_SET_KEY and ignored for NEW_KEY.  As far as I
understand the default key concept only makes sense for a Tx key because
on Rx all keys can be tried, so we don't need this for client mode.  The
kernel decides whether the NEW_KEY is for unicast or multicast based on
whether NL80211_ATTR_KEY_MAC was supplied.
2018-09-24 13:14:27 -05:00
Denis Kenzior
b60e79b8dd eap-wsc: Do not leak device_password
device password was read from settings using l_settings_get_string which
returns a newly-allocated string due to un-escape semantics.  However,
when assigning wsc->device_password, we strdup-ed the password again
unnecessarily.

==1069== 14 bytes in 2 blocks are definitely lost in loss record 1 of 1
==1069==    at 0x4C2AF0F: malloc (vg_replace_malloc.c:299)
==1069==    by 0x16696A: l_malloc (util.c:62)
==1069==    by 0x16B14B: unescape_value (settings.c:108)
==1069==    by 0x16D12C: l_settings_get_string (settings.c:971)
==1069==    by 0x149680: eap_wsc_load_settings (eap-wsc.c:1270)
==1069==    by 0x146113: eap_load_settings (eap.c:556)
==1069==    by 0x12E079: eapol_start (eapol.c:2022)
==1069==    by 0x1143A5: netdev_connect_event (netdev.c:1728)
==1069==    by 0x118751: netdev_mlme_notify (netdev.c:3406)
==1069==    by 0x1734F1: notify_handler (genl.c:454)
==1069==    by 0x168987: l_queue_foreach (queue.c:441)
==1069==    by 0x173561: process_multicast (genl.c:469)
2018-09-24 12:19:27 -05:00
Denis Kenzior
3ca1aeb917 wsc: Don't use wsc_pin_is_checksum_valid on 4 digit PINs
wsc_pin_is_valid allows two types of PINs through:
  1. 4 digit numeric PIN
  2. 8 digit numeric PIN

The current code always calls wsc_pin_is_checksum_valid to determine
whether a DEFAULT or USER_SPECIFIED PIN is used.  However, this function
is not safe to call on 4 digit PINs and causes a buffer overflow.

Add simple checks to treat 4 digit PINs as DEFAULT PINs and do not call
wsc_pin_is_checksum_valid on these.

Reported-By: Matthias Gerstner <matthias.gerstner@suse.de>
2018-09-24 12:19:27 -05:00
Denis Kenzior
cc37018426 eap-wsc: Drop 8 digit PIN check
EAP-WSC handles 4 digit, 8 digit and out-of-band Device passwords.  The
latter in particular can be anything, so drop the mandatory minimum
password length check here.

This also has the effect of enabling 4-digit PINs to actually work as
they are intended.
2018-09-24 12:19:27 -05:00
Tim Kourt
a3cc68e61e ttls: add radius AVP builder and build response 2018-09-21 18:07:58 -05:00
Tim Kourt
4d8791dd3a ttls: replace old AVP processing with new 2018-09-21 15:20:18 -05:00
Tim Kourt
5d1d1ad893 ttls: add radius AVP parser 2018-09-21 15:19:13 -05:00
Tim Kourt
71ba8ac765 ttls: introduce phase2_method structure
The struct allows to support multiple types of the tunneled methods.
Previously, EAP-TTLS was supporting only the eap based ones.
This patch is also starts to move some of the phase 2 EAP
functionality into the new structure.
2018-09-21 15:19:13 -05:00
Tim Kourt
a7f5d1da21 ttls: remove unused state var 2018-09-21 12:15:28 -05:00
Tim Kourt
410ee2f6b9 eap-tls-common: introduce utility functions for eap-tls 2018-09-21 12:15:25 -05:00
James Prestwood
a553771ffe netdev: station: support FT over SAE
Boiled down, FT over SAE is no different than FT over PSK, apart from
the different AKM suite. The bulk of this change fixes the current
netdev/station logic related to SAE by rebuilding the RSNE and adding
the MDE if present in the handshake to match what the PSK logic does.

A common function was introduced into station which will rebuild the
handshake rsne's for a target network. This is used for both new
network connections as well as fast transitions.
2018-09-21 11:26:05 -05:00
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
James Prestwood
996a18e934 network: free EAP_CACHE_NEVER secret types
When freeing a network secrets any secrets labeled with CACHE_NEVER
would get removed from the secret queue but never actually freed.
2018-09-19 14:33:23 -05:00
James Prestwood
74b8b6d65c watchlist: fix stale watchlist item processing
All the watchlist notify macros were broken in that they did not check
that the watchlist item was still valid before calling it. This only
came into play when a watchlist was being notified and one of the notify
functions removed an item from the same watchlist. It appears this was
already thought of since watchlist_remove checks 'in_notify' and will
mark the item's id as stale (0), but that id never got checked in the
notify macros.

This fixes testAdHoc valgrind warning:

==3347== Invalid read of size 4
==3347==    at 0x416612: eapol_rx_auth_packet (eapol.c:1871)
==3347==    by 0x416DD4: __eapol_rx_packet (eapol.c:2334)
==3347==    by 0x40725B: netdev_pae_read (netdev.c:3515)
==3347==    by 0x440958: io_callback (io.c:123)
==3347==    by 0x43FDED: l_main_iterate (main.c:376)
==3347==    by 0x43FEAB: l_main_run (main.c:423)
==3347==    by 0x40377A: main (main.c:489)
...
2018-09-19 14:17:26 -05:00
Denis Kenzior
ba248e028e station: Make station_rssi_level_changed static 2018-09-19 13:47:51 -05:00
Denis Kenzior
f06c3b645d station: Make station_state_to_string static 2018-09-19 13:45:49 -05:00
Tim Kourt
59c4c8ac6b scan: change scan triggered notification behavior
Do not notify the caller after the first scan_triggered event in
multi-segmented scans.
2018-09-19 11:53:36 -05:00
Tim Kourt
b5aefede95 network: add check for the existing settings
In the case of the open networks with hidden SSIDs
the settings object is already created.

Valgrind:
==4084==    at 0x4C2EB6B: malloc (vg_replace_malloc.c:299)
==4084==    by 0x43B44D: l_malloc (util.c:62)
==4084==    by 0x43E3FA: l_settings_new (settings.c:83)
==4084==    by 0x41D101: network_connect_new_hidden_network (network.c:1053)
==4084==    by 0x4105B7: station_hidden_network_scan_results (station.c:1733)
==4084==    by 0x419817: scan_finished (scan.c:1165)
==4084==    by 0x419CAA: get_scan_done (scan.c:1191)
==4084==    by 0x443562: destroy_request (genl.c:139)
==4084==    by 0x4437F7: process_unicast (genl.c:424)
==4084==    by 0x4437F7: received_data (genl.c:534)
==4084==    by 0x440958: io_callback (io.c:123)
==4084==    by 0x43FDED: l_main_iterate (main.c:376)
==4084==    by 0x43FEAB: l_main_run (main.c:423)
2018-09-19 11:52:33 -05:00
Denis Kenzior
88b2aefeed wiphy: Add missing blank 2018-09-18 17:06:07 -05:00
Denis Kenzior
e52204f46f station: Fix scan_pending assignment
In case an error occurs starting a scan, the scan_pending variable is
never cleared and message is never unrefed.
2018-09-18 13:58:52 -05:00
Denis Kenzior
d347100ac2 device: Remove the rest of the legacy Device properties 2018-09-14 21:53:01 -05:00
Denis Kenzior
42e5dbf6f8 device: Remove legacy GetOrderedNetworks 2018-09-14 21:49:13 -05:00
Denis Kenzior
b2e0a82225 device: Remove Scan method 2018-09-14 21:21:47 -05:00
Denis Kenzior
c47db2635f device: Remove Disconnect method 2018-09-14 21:20:33 -05:00
Marcel Holtmann
804ce5944b dbus: Make the g_dbus global variable static 2018-09-14 23:01:32 +02:00
Marcel Holtmann
2606bc73ad build: Add DAEMON_ prefix to CONFIGDIR and STORAGEDIR 2018-09-14 17:58:44 +02:00
Marcel Holtmann
1e37ef31fe eapol: Move eapol_key_validate() into eapolutil helper 2018-09-14 17:31:42 +02:00
Marcel Holtmann
c40be7a7d5 monitor: Add EAP dummy method to keep linker happy 2018-09-14 17:12:47 +02:00
Marcel Holtmann
502aac073f tools: Add configure option and D-Bus policy file for hwsim utility 2018-09-14 15:24:15 +02:00
Marcel Holtmann
5126459ecc main: Fix the order of --help and -h option handling 2018-09-14 15:19:06 +02:00
Marcel Holtmann
0c5b6e4da3 dbus: Fix policy entries and add access for group wheel 2018-09-14 15:04:15 +02:00
Denis Kenzior
b181604c18 main: Don't init nl80211 until dbus name is owned 2018-09-11 20:06:00 -05:00
Denis Kenzior
95896c10ff device: Fix crashes when outside of Station mode 2018-09-10 20:01:35 -05:00
Denis Kenzior
0a42f63d42 station: Update GetOrderedNetworks API implementation
The Station interface GetOrderedNetworks signature now matches the API
documentation.  Device.GetOrderedNetworks still uses the legacy
signature.
2018-09-08 10:34:52 -05:00
Andrew Zaborowski
854ce2b062 station: Emit PropertiesChanged on the Station interface too 2018-09-07 21:23:41 -05:00
Tim Kourt
18aa744099 eap: clarify warning message 2018-09-07 12:31:03 -05:00
Tim Kourt
bb5997c4ea peap: fix typo and add labels 2018-09-07 12:30:05 -05:00
Tim Kourt
2735e32b10 peap: handle redundant usage of the L flag
Some of the PEAP server implementations set the L flag along with
redundant TLS Message Length field for the un-fragmented packets.
This patch allows to identify and handle such occasions.
2018-09-07 12:26:23 -05:00
Tim Kourt
958bd12624 peap: accept EAP type 33 as termination mechanism for PEAPv1
EAP Extensions type 33 is used in PEAPv0 as a termination
mechanism for the tunneled EAP methods. In PEAPv1
the regular EAP-Success/Failure packets must be used to terminate
the method. Some of the server implementations of PEAPv1
rely on EAP Extensions method to terminate the conversation
instead of the required Success/Failure packets. This patch
makes iwd interoperable with such devices.
2018-09-06 18:23:24 -05:00
James Prestwood
397bf9c0bd crypto: pwd: sae: Made H function common
The "H" function used by SAE and EAP-PWD was effectively the same
function, EAP-PWD just used a zero key for its calls. This removes
the duplicate implementations and merges them into crypto.c as
"hkdf_256".

Since EAP-PWD always uses a zero'ed key, passing in a NULL key to
hkdf_256 will actually use a 32 byte zero'ed array as the key. This
avoids the need for EAP-PWD to store or create a zero'ed key for
every call.

Both the original "H" functions never called va_end, so that was
added to hkdf_256.
2018-09-05 11:12:54 -05:00
Denis Kenzior
5db022041c station: Fix up some printf type inconsistencies
The ifindex as reported by netdev is unsigned, so make sure that it is
printed as such.  It is astronomically unlikely that this causes any
actual issues, but lets be paranoid.
2018-09-05 11:09:35 -05:00
Denis Kenzior
0f34e1a0c1 station: Expose ConnectedNetwork, Scanning and State
These properties will temporarily be exposed on both interfaces
until tools such as test runner, iwctl and NetworkManager/ConnMan
are ported over.
2018-09-05 11:09:35 -05:00
Denis Kenzior
2f2ec71a6c station: Expose Scan, Disconnect, GetOrderedNetworks
These methods will temporarily be exposed on both interfaces until tools
such as test runner, iwctl and NetworkManager/ConnMan are ported over.
2018-09-05 11:09:35 -05:00
Denis Kenzior
b650a5d492 station: Move ConnectHiddenNetwork to station 2018-09-05 11:09:35 -05:00
Denis Kenzior
f61747f011 device: Allow switching mode even if station is busy
Since device will no longer be aware of what is happening on the station
interface, we should allow switching modes in any situation
2018-09-04 23:57:14 -05:00
Denis Kenzior
25f36f5644 station: Move remaining connect/re-connect/roam logic 2018-09-04 23:57:14 -05:00
Denis Kenzior
cdfcb902e4 station: move signal level agent logic from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
ac83a35b97 station: Register skeleton dbus interface 2018-09-04 23:57:14 -05:00
Denis Kenzior
f3d326b0fd adhoc: Fix comment 2018-09-04 23:57:14 -05:00
Denis Kenzior
4c8b39da3b station: Move device_disconnect_event to station 2018-09-04 23:57:14 -05:00
Denis Kenzior
d8617a5000 station: Move device_disassociate to station 2018-09-04 23:57:14 -05:00
Denis Kenzior
520d3ad6b2 station: move GetSortedNetworks implementation 2018-09-04 23:57:14 -05:00
Denis Kenzior
77b006b4e9 station: Move dbus disconnection logic from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
12ce9debec station: Move device_disconnect to station 2018-09-04 23:57:14 -05:00
Denis Kenzior
ee91cfcb7e station: Move hidden network code from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
e65c3e63be station: Move state reset code from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
f8b724d3ba wsc/device: Use station_set_autoconnect 2018-09-04 23:57:14 -05:00
Denis Kenzior
b49ec9461b station: move the remaining scanning code from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
58c8243114 device: Get rid of device_list queue 2018-09-04 23:57:14 -05:00
Denis Kenzior
553a8c1bae device/wsc: Use station_set_scan_results 2018-09-04 23:57:14 -05:00
Denis Kenzior
187ea7f5d1 device/network: Use station_is_busy 2018-09-04 23:57:14 -05:00
Denis Kenzior
f996bea880 station: Add station_is_busy 2018-09-04 23:57:14 -05:00
Denis Kenzior
5e2cce2e0b device: Remove unused device_get_connected_network 2018-09-04 23:57:14 -05:00
Denis Kenzior
1962549152 device: Remove device_network_find
Switch to using station_network_find instead
2018-09-04 23:57:14 -05:00
Denis Kenzior
dcfdd0ccde network: Use station_foreach
Instead of __iwd_device_foreach api, use the newly introduced
station_foreach API
2018-09-04 23:57:14 -05:00
Denis Kenzior
d576c28d9f device: Remove device_get_path
Use netdev_get_path instead
2018-09-04 23:57:14 -05:00
Denis Kenzior
993a69cef8 network: Make network station centric 2018-09-04 23:57:14 -05:00
Denis Kenzior
0650707eea station: Add station_get_connected_network 2018-09-04 23:57:14 -05:00
Denis Kenzior
d0ec5fcf77 station: Add station_get_netdev 2018-09-04 23:57:14 -05:00
Denis Kenzior
5837e65c40 station: Add station_get_wiphy 2018-09-04 23:57:14 -05:00
Denis Kenzior
738faa7657 network: Pass connected state to network_rank_update 2018-09-04 23:57:14 -05:00
Denis Kenzior
b69f938879 device: Get rid of connected_bss member 2018-09-04 23:57:14 -05:00
Denis Kenzior
e6c6e4f0ae device: Get rid of connected_network member 2018-09-04 23:57:14 -05:00
Denis Kenzior
575d0fa554 station: Move roam triggering & scanning code
Move the roam initiation (signal loss, ap directed roaming) and scanning
details into station from device.  Certain device functions have been
exposed temporarily to make this possible.
2018-09-04 23:57:14 -05:00
Denis Kenzior
966cad3696 network: Remove unused function 2018-09-04 23:57:14 -05:00
Denis Kenzior
e028b7019c station: Move state tracking from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
69f1c3321a station: Add station_find 2018-09-04 23:57:14 -05:00
Denis Kenzior
1378a3c945 station: Move scanning code from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
1b22af2052 scan: Add scan_bss_addr_cmp/eq 2018-09-04 23:57:14 -05:00
Denis Kenzior
9b574b5931 station: Move autoconnect logic from device 2018-09-04 23:57:14 -05:00
Denis Kenzior
977b817f3c device: Modify signature of device_set_scan_results
WSC was using this to set the scan results.  However it never needed the
autoconnect paths, so modify the signature to make this explicit.
2018-09-04 23:57:14 -05:00
Denis Kenzior
345485c506 device: Split process_bss
process_bss performs two main operations.  It adds a seen BSS to a
network object (existing or new) and if the device is in the autoconnect
state, it adds an autoconnect entry as needed.  Split this operation
into two separate & independent steps.
2018-09-04 23:57:14 -05:00
Denis Kenzior
e6060c1026 station: Move handshake setup code from device
For now we temporarily create the station object from within device so
that the code can be moved over in a more manageable manner.
2018-08-31 20:25:23 -05:00
Denis Kenzior
641e71a02f station: Add skeleton 2018-08-31 20:24:15 -05:00
Denis Kenzior
839053c952 device: Get rid of timestamp parameter in process_bss
This is no longer being used
2018-08-31 14:53:56 -05:00
James Prestwood
35231a1b2c adhoc: removed unneeded check for !sta->addr
sta->addr is is guarenteed to be valid (assuming sta is valid).
2018-08-29 12:49:06 -05:00
Andrew Zaborowski
5f3cdc2093 handshake: Rename own_ie/ap_ie and related setters
To avoid confusion in case of an authenticator side handshake_state
structure and eapol_sm structure, rename own_ie to supplicant_ie and
ap_ie to authenticator_ie.  Also rename
handshake_state_set_{own,ap}_{rsn,wpa} and fix when we call
handshake_state_setup_own_ciphers.  As a result
handshake_state_set_authenticator, if needed, should be called before
handshake_state_set_{own,ap}_{rsn,wpa}.
2018-08-27 11:42:45 -05:00
Andrew Zaborowski
ddbc49538e ap: Drop a RSNE check
After EAPOL logic was moved to eapol.c a check was added to
ap_associate_sta_cb to bitwise compare the AP's RSNE to the RSNE
received in the (Re)Association frame.  There is as far as I know no
reason for them to be the same (although they are in our autotest) and
if there was a reason we'd rather validate the (Re)Association RSNE
immediately when received.  We also must set different RSNEs as the
"own" (supplicant) and "ap" RSNEs in the handshake_state for validation
of step 2/4 in eapol.c (fixes wpa_supplicant's and MS Windows
connections being rejected)
2018-08-23 22:03:38 -05:00
Andrew Zaborowski
cb04fb6314 ap: Stop EAPOL negotiation on Disassociation
Make sure we interrupt eapol traffic (4-way handshake) if we receive a
Disassociation from station.  Actually do this in ap_del_station because
it's called from both ap_disassoc_cb and ap_success_assoc_resp_cb and
seems to make sense in both cases.
2018-08-23 21:49:53 -05:00
Andrew Zaborowski
f460a7e12c ap: eapol_sm lifecycle fixes
On one hand when we're called with HANDSHAKE_EVENT_FAILED or
HANDSHAKE_EVENT_SETTING_KEYS_FAILED the eapol_sm will be freed in
eapol.c, fix a double-free by setting it to NULL before ap_free_sta
is called.
On the other hand make sure we call eapol_sm_free before setting
sta->sm to NULL in ap_drop_rsna to avoid potential leak and avoid
the eapol_sm continuing to use the handshake_state we freed.
2018-08-23 21:45:41 -05:00
Andrew Zaborowski
c0a70cc9b7 device: Drop now unused start/stop_ap_pending fields 2018-08-23 21:43:33 -05:00
Andrew Zaborowski
58f91a741b knownnetworks: Fix timestamps comparison
timespec_compare wanted to receive network_info structures as arguments
to compare connected_time timestamps but in one instance we were passing
actual timespec structures.  Add a new function to compare plain timespec
values and switch the names for readability.
2018-08-23 21:43:30 -05:00
James Prestwood
9c71d56444 sae: fix endianness issues
Replaced all calls of l_get_u16 with l_get_le16. This fixes
failures on big-endian hardware.
2018-08-23 12:23:59 -05:00
Denis Kenzior
99253a8689 sae: Fix Wformat warning
src/sae.c:714:3: warning: format ‘%ld’ expects argument of type ‘long
int’, but argument 6 has type ‘size_t’ [-Wformat=]
2018-08-21 10:19:39 -05:00
Andrew Zaborowski
da96b5c51c network: Use is_known to save queue lookups
Now that the is_known field is back use it instead of searching the
"networks" queue where possible.
2018-08-20 11:37:07 -05:00
Denis Kenzior
7e7bf126d3 device: Remove device_get_netdev 2018-08-19 23:37:29 -05:00
Denis Kenzior
8d6f3021e3 adhoc: Do not use device
Ad-Hoc only uses information from the netdev object and doesn't really
depend on the device object.
2018-08-19 23:36:24 -05:00
Denis Kenzior
92e7e63af5 device: Remove device_get_ifindex 2018-08-19 23:30:06 -05:00
Denis Kenzior
1ad22021d2 device: Remove device_get_address 2018-08-19 23:28:58 -05:00
Denis Kenzior
e068c97409 wsc: Make WSC netdev centric 2018-08-19 23:28:07 -05:00
Denis Kenzior
2e0638d51b ap: Make AP use netdev instead of device
The information is always on the netdev object anyway, so this just
makes it explicit.
2018-08-19 23:12:29 -05:00
Denis Kenzior
0ad8f7e0d6 netdev: Add netdev_get_path 2018-08-19 23:12:14 -05:00
Denis Kenzior
a277a424f3 device: Remove unneeded typedefs/enums 2018-08-19 23:10:27 -05:00
Denis Kenzior
9ca72b9527 netdev: Issue initial SET_CQM when in STATION mode 2018-08-19 22:52:52 -05:00
Denis Kenzior
99b5c67c88 device: Update State when Mode is changed 2018-08-19 22:41:07 -05:00
Denis Kenzior
5a6c19988c device/netdev: Properly implement mode switching 2018-08-19 22:07:15 -05:00
Denis Kenzior
3628003296 wsc: Do not check device mode
There's no longer a need to do that since WSC is only created in station
mode.
2018-08-19 22:06:02 -05:00
Denis Kenzior
cc9fc8de67 knownnetworks: Fix leak of fswatch
==7330== 112 bytes in 1 blocks are still reachable in loss record 1 of 1
==7330==    at 0x4C2CF8F: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==7330==    by 0x14CF7D: l_malloc (util.c:62)
==7330==    by 0x152A25: l_io_new (io.c:172)
==7330==    by 0x16B217: l_fswatch_init (fswatch.c:171)
==7330==    by 0x16B217: l_fswatch_new (fswatch.c:198)
==7330==    by 0x13B9D9: known_networks_init (knownnetworks.c:401)
==7330==    by 0x110020: main (main.c:439)
2018-08-19 22:05:31 -05:00
Denis Kenzior
93985103bb device: Use netdev->iftype instead of device_mode 2018-08-19 20:39:37 -05:00
Denis Kenzior
ae223fe06c netdev: Don't bother switching iftype on shutdown 2018-08-19 20:16:16 -05:00
Denis Kenzior
52e0a7ce83 netdev: Remove redundant typedefs
Unify command specific typedefs which had the same signature into a
single netdev_command_cb_t
2018-08-19 18:25:23 -05:00
Denis Kenzior
f6eb571b67 device: Set autoconnect only if triggered via D-Bus 2018-08-18 00:41:25 -05:00
Denis Kenzior
b7fd5023f0 device: Honor autoconnect setting on power up
If the device Powered state is toggled, honor the autoconnect setting
instead of always going into AUTOCONNECT mode
2018-08-18 00:40:45 -05:00
Denis Kenzior
996a6d2546 netdev/device: Combine watches
There was somewhat overlapping functionality in the device_watch
infrastructure as well as the netdev_event_watch.  This commit combines
the two into a single watch based on the netdev object and cleans up the
various interface additions / removals.

With this commit the interfaces are created when the netdev/device is
switched to Powered=True state AND when the netdev iftype is also in the
correct state for that interface.  If the device is brought down, then
all interfaces except the .Device interface are removed.

This will make it easy to implement Device.Mode property properly since
most nl80211 devices need to be brought into Powered=False state prior
to switching the iftype.
2018-08-18 00:38:56 -05:00
Denis Kenzior
da52bcd109 netdev: Rework netdev_init/exit 2018-08-17 23:47:20 -05:00
Denis Kenzior
b3e937e11a main: Rework initialization order
Group together all the configuration settings / reading code together
for more readability.

Initialize eap, eapol and rfkill before device
2018-08-17 23:35:09 -05:00
Denis Kenzior
c5b19dc747 main: Don't call wsc_exit twice 2018-08-17 16:45:05 -05:00
Denis Kenzior
28916dc5ca netdev: Add netdev_get_device 2018-08-17 14:59:01 -05:00
Denis Kenzior
3788156f39 netdev: Don't use device_get_ifindex in join_adhoc
This is pointless as the ifindex is already available on the netdev
object.
2018-08-17 14:42:07 -05:00
Denis Kenzior
3c28c5c24c netdev: Don't crash on operstate callbacks
The way that netdev_set_linkmode_and_operstate was used resulted in
potential crashes when the netdev was destroyed.  This is because netdev
was given as data to l_netlink_send and could be destroyed between the
time of the call and the callback.  Since the result of calls to
netdev_set_linkmode_and_operstate is inconsequential, it isn't really
worthwhile tracking these calls in order to cancel them.

This patch simplies the handling of these rtnl calls, makes sure that
netdev isn't passed as user data and rewrites the
netdev_set_linkmode_and_operstate signature to be more consistent with
rtnl_set_powered.
2018-08-17 14:10:13 -05:00
Denis Kenzior
ec437661b8 netdev: Don't set userdata for getlink 2018-08-17 14:10:13 -05:00
Denis Kenzior
015e8625bf netdev: Make sure set_powered calls are cancelable
Since all netdevs share the rtnl l_netlink object, it was possible for
netdevs to be destroyed with outstanding commands still executing on the
rtnl object.  This can lead to crashes and other nasty situations.

This patch makes sure that Powered requests are always tracked via
set_powered_cmd_id and the request is canceled when netdev is destroyed.
This also implies that netdev_set_powered can now return an -EBUSY error
in case a request is already outstanding.
2018-08-17 14:10:13 -05:00
Denis Kenzior
c530667ed1 device: Send .Aborted error if property set fails
If a property setting is canceled before the callback is generated, then
generate an .Aborted error the the method return
2018-08-17 14:10:13 -05:00
Denis Kenzior
3a9b1f2e38 device: Return an error if netdev_set_powered fails
netdev_set_powered could in theory return an error.  So handle this
case by returning an error from the property set call.
2018-08-17 14:10:13 -05:00
James Prestwood
b9fac0fd14 sae: fix sae to not hard code peer address
SAE is meant to work in a peer-to-peer fashion where neither side acts
as a dedicated authenticator or supplicant. This was not the case with
the current code. The handshake state authenticator address was hard
coded as the destination address for all packets, which will not work
when mesh comes into play. This also made unit testing the full SAE
procedure with two sae_sm's impossible.

This patch adds a peer address element to sae_sm which is filled with
either aa/spa based on the value of handshake->authenticator
2018-08-15 13:26:45 -05:00
James Prestwood
986f66a3c6 eapol: removed authenticator bit and auth register
This removes the authenticator bit in eapol_sm as well as unifies
eapol_register_authenticator and eapol_register. Taking advantage
of the handshake state authenticator bit we no longer have a need
for 2 separate register functions.

ap, and adhoc were also updated to set the authenticator bit in
the handshake and only use eapol_register to register their sm's.

netdev was updated to use the authenticator bit when choosing the
correct key address for adhoc.
2018-08-15 12:40:38 -05:00
James Prestwood
2036d36313 handshake: introduce authenticator bit
Both SAE and adhoc can benefit from knowing whether the handshake state
is an authenticator or a supplicant. It will allow both to easily
obtain the remote address rather than sorting out if aa/spa match the
devices own address.
2018-08-15 12:40:35 -05:00
Denis Kenzior
1f512ff85c device: Move device_init/device_exit to iwd.h 2018-08-14 14:57:19 -05:00
Denis Kenzior
47beec30f9 network: Implement Network.KnownNetwork property 2018-08-14 14:57:16 -05:00
Denis Kenzior
1c27aa5f1d knownnetworks: move known_networks_init/exit to iwd.h 2018-08-14 13:36:48 -05:00
Denis Kenzior
e6b3691c9e knownnetworks: Expose known_network_get_path
So that it can be used to implement Network.KnownNetwork property
2018-08-14 13:35:23 -05:00
James Prestwood
dd1885de11 sae: remove double sc increment
The send confirm counter is incremented before calling sae_send_confirm
in all cases, but the function itself was also incrementing sc after
sending the packet. This isn't critical to the successful execution of
SAE as the AP just uses the sc value in the packet but it did violate
the 802.11 spec.
2018-08-14 13:13:50 -05:00
James Prestwood
fd8671e9c5 netdev: added sae functionality to netdev
In order to plug SAE into the existing connect mechanism the actual
CMD_CONNECT message is never sent, rather sae_register takes care
of sending out CMD_AUTHENTICATE. This required some shuffling of
code in order to handle both eapol and sae. In the case of non-SAE
authentication everything behaves as it did before. When using SAE
an sae_sm is created when a connection is attempted but the eapol_sm
is not. After SAE succeeds it will start association and then create
the eapol_sm and start the 4-way handshake.

This change also adds the handshake SAE events to device and
initializes SAE in main.
2018-08-14 10:37:52 -05:00
James Prestwood
220fb61128 sae: implementation
SAE (Simultaneous Authentication of Equals) takes place during
authentication, and followed by EAPoL/4-way handshake. This
module handles the entire SAE commit/confirm exchange. This was
done similar to eapol.

SAE begins when sae_register is called. At this point a commit
message will be created and sent out which kicks off the SAE
authentication procedure.

The commit/confirm exchange is very similar to EAP-PWD, so all
the ecc utility functions could be re-used as-is. A few new ecc
utility functions were added to conform to the 80211 'blinding'
technique for computing the password element.
2018-08-13 20:40:59 -05:00
James Prestwood
920b307431 network: require Passphrase on psk files
For an SAE network, the raw passphrase is required. For this reason,
known network psk files should now always contain a 'Passphrase' entry.

If a psk file is found without a Passphrase entry the agent will be asked
for the Passphrase before connecting. This will update the legacy psk
file with the Passphrase entry.
2018-08-13 20:40:59 -05:00
Denis Kenzior
70acf2dcb4 device: rename SignalLevelChanged to Changed 2018-08-13 20:40:59 -05:00
Denis Kenzior
51c6d2d391 storage: use rename instead of unlink, link, unlink 2018-08-10 14:42:33 -05:00
Denis Kenzior
cbc149c7ed knownnetworks: Avoid unnecessary known object removal
Due to the quirk in how storage_network_sync implements file writing,
iwd was generating unnecessary KnownNetwork removal events (and
preventing certain test cases from passing successfully)

storage_network_sync tries to perform atomic writes by writing to a
temporary storage location first, unlinking the existing file and
renaming the tmp file as the original.

This generates a set of inotify events which confuses the current
implementation.
2018-08-10 12:17:40 -05:00
Denis Kenzior
c38b77d0c0 network: Fix syncing the PSK on 1st connection
The previous change did not consider the case of the PSK being written
for the very first time.  In this case storage_network_open would return
NULL and an empty file would be written.

Change this so that if storage_network_open fails, then the current
network settings are written to disk and not a temporary.
2018-08-10 12:13:44 -05:00
Andrew Zaborowski
abeed797c0 network: Reload settings in network_sync_psk
Reload the network settings from disk before calling
storage_network_sync in network_sync_psk to avoid potentially
overwriting changes made to the storage by user since the connection
attempt started.  This won't account for all situations but it
covers some of them and doesn't cost us much.
2018-08-10 09:44:16 -05:00
Andrew Zaborowski
3065e0768c knownnetworks: Add KnownNetwork.Hidden boolean property 2018-08-10 09:43:31 -05:00
Denis Kenzior
14693065d7 netdev: Use EAPoL over nl80211 if CONTROL_PORT set
Our logic would set CONTROL_PORT_OVER_NL80211 even in cases where
CONTROL_PORT wasn't used (e.g. for open networks).  While the kernel
ignored this attribute in this case, it is nicer to set this only if
CONTROL_PORT is intended to be used.
2018-08-09 15:20:27 -05:00
James Prestwood
d2d2b59f25 netdev: break out FT associate into common function
SAE will require some of the same CMD_ASSOCIATE building code that
FT currently uses. This breaks out the common code from FT into
netdev_build_cmd_associate_common.
2018-08-09 15:20:10 -05:00
James Prestwood
43b70b37d9 eapol: added key description type 0
This also required passing in the akm suite in case the key description
version was zero. In the zero case the akm must be checked. For now this
only supports the SAE akm.
2018-08-09 15:05:56 -05:00
James Prestwood
d256e97b32 device: added SUITE_SAE_SHA256 to _select_akm_suite 2018-08-09 14:57:41 -05:00
Jordan Glover
87d74db156 net.connman.iwd.service: Change SystemdService name to iwd.service
This allows to activate iwd service through dbus even when service
isn't enabled.
2018-08-09 10:45:16 -05:00
Andrew Zaborowski
4b4875e6cf knownnetworks: Watch filesystem events in STORAGEDIR
Update the known networks list and network properties on file creations,
removals and modifications.  We watch for these filesystem events using
ell's fswatch and react accordingly.
2018-08-09 10:35:37 -05:00
Andrew Zaborowski
ca270e9de2 network: Drop actions to be handled by filesystem watch 2018-08-09 10:27:28 -05:00
Andrew Zaborowski
5f79acfd8d storage: Expose get_network_file_path in the header 2018-08-09 10:25:56 -05:00
Andrew Zaborowski
549021b5dd eap-gtc: Fix reading secret from settings
This makes testEAP-PEAP-GTC pass for me by re-adding the check for the
GTC-Secret setting which was replaced with the check for the secrets
list in 3d2285ec7e.
2018-08-08 19:43:08 -05:00
Andrew Zaborowski
4ffb97faa1 eap: Add secret cache policy types
eap_append_secret now takes a new cache_policy parameter which can be
used by the EAP method to signal that the value received from the agent
is to never be cached, i.e. each value can only be used once.  The
parameter value should be EAP_CACHE_NEVER for this and we use this in
value EAP-GTC where the secret tokens are one time use.  The
EAP_CACHE_TEMPORARY value is used in other methods, it preserves the
default behaviour where a secret can be cached for as long as the
network stays in range (this is the current implementation more than a
design choice I believe, I didn't go for a more specific enum name as
this may still change I suppose).
2018-08-08 19:43:05 -05:00
James Prestwood
f68cca43da handshake: add setter for PMKID
SAE generates the PMKID during the authentication process, rather than
generating it on-the-fly using the PMK. For this reason SAE needs to be
able to set the PMKID once its generated. A new flag was also added
(has_pmkid) which signifies if the PMKID was set or if it should be
generated.
2018-08-08 16:03:17 -05:00
James Prestwood
0b452b9200 ecc: added Y^2 and legendre API's
SAE requires checking a values legendre symbol. Also added a helper
for computing Y^2, or, calculating the sum for the X side of the
equation.
2018-08-07 17:40:55 -05:00
James Prestwood
35278ae108 network: save passphrase in network
SAE needs access to the raw passphrase, not the PSK which network
saves. This changes saves the passphrase in network and handshake
objects, as well as adds getters to both objects so SAE can retrieve
the passphrase.
2018-08-07 17:39:16 -05:00
Denis Kenzior
7da345a9a5 mpdu: Also update comment to reflect 2016 spec 2018-08-07 17:23:26 -05:00
James Prestwood
4f8a722580 mpdu: added reason codes from more recent (2016) spec 2018-08-07 17:20:14 -05:00
James Prestwood
ff197edfc4 main: reordered plugin init/exit
This fixes improper cleanup when ofono leaves the bus after a simauth
instance has been cleaned up. The problem was that the plugin
exit was being called after the simauth module, causing there to
be stale simauth instances that were no longer valid. Now plugins
cleanup before simauth.

This fix fixes the print seen when iwd exits:

"Auth provider queue was not empty on exit!"
2018-08-07 17:18:23 -05:00
Denis Kenzior
8102b33634 wiphy: Support Adapter.SupportedModes property 2018-08-07 17:10:26 -05:00
Denis Kenzior
33e83b8c7c wiphy: Parse & report supported interface types 2018-08-07 16:45:17 -05:00
Denis Kenzior
6e6797cbde dbus: Add dbus_iftype_to_string 2018-08-07 16:19:39 -05:00
Denis Kenzior
9c6f3ef5c0 netdev: synchronize iftypes with nl80211
Make sure the netdev iftype enumeration is the same as nl80211
2018-08-07 16:12:12 -05:00
Denis Kenzior
6f2fbe32f9 wiphy: Add wiphy_supports_adhoc_rsn 2018-08-07 15:38:15 -05:00
Denis Kenzior
59697ead34 dbus: Remove unused functions 2018-08-07 15:38:15 -05:00
Jordan Glover
ed59c1af7f iwd.service: Order iwd before network.target
This ensures the unit will be stopped after network.target on shutdown
and any network filesystems will be unmounted before iwd is killed.
2018-08-06 15:46:19 -05:00
Marcel Holtmann
28573c90d1 build: Add support for systemd D-Bus activation 2018-08-06 22:37:22 +02:00
Andreas Henriksson
0573c6b5fb src: Fix spelling errors spotted by lintian
The debian package checking tool lintian spotted a bunch
of spelling errors in the built binaries.
2018-08-06 12:29:06 -05:00
Andrew Zaborowski
17c35dd1bc knownnetworks: Add back removing network files
This step apparently got lost during the refactoring in
97913c6f9a.
2018-08-01 10:32:32 -05:00
Andrew Zaborowski
e1634baae4 storage: Take enum security instead of string as parameter
Make the network_storage_* functions uniformly accept an enum value
instead of a string so that he conversion to string doesn't need to
happen in all callers.
2018-08-01 09:38:52 -05:00
Andrew Zaborowski
ac527d88c6 network: Actually remove the seen_time field 2018-08-01 09:32:41 -05:00
James Prestwood
3d2285ec7e eap-gtc: added support for agent in gtc
Now, EAP-GTC behaves similar to MSCHAPv2 where check_settings allows
for missing EAP-Identity and GTC-Secret fields. Either or both can be
missing and the agent will request the missing fields.
2018-07-31 14:35:36 -05:00
Andrew Zaborowski
00a643f093 knownnetworks: Drop the old KnownNetworks DBus interface 2018-07-31 11:52:38 -05:00
Andrew Zaborowski
e7e6cc3064 knownnetworks: Move ForgetNetwork() to KnownNetwork object
Remove the KnownNetworks.ForgetNetwork(ssid, security) method and add a
KnownNetwork.Forget() method on Known Network's DBus objects.
2018-07-31 11:52:35 -05:00
Andrew Zaborowski
c651bed28f knownnetworks: DBus objects for KnownNetworks
Add ObjectManager objects with properties for each Known Network so that
signals are emitted for creation or removal of a Known Network and a
Property Changed is emitted on LastConnectedTime change.  Remove the
ListKnownNetworks method from the old KnownNetworks interface.

Note this breaks clients that used the known networks interface.
2018-07-31 10:58:03 -05:00
Andrew Zaborowski
319b6416de network: Stop tracking network last seen times
Drop the corresponding network_info field, function and D-Bus property.
The last seen times didn't seem useful but if a client needs them it can
probably implement the same logic with the information already available
through DBus.
2018-07-31 10:55:32 -05:00
Denis Kenzior
6be0f55d85 ap/adhoc: Don't crash on eapol_sm_free
If the sm object (or the handshake object) is NULL, don't call the
corresponding function.

0  0x7fb6cd37da80 in /lib64/libc.so.6
1  0x414764 in eapol_sm_destroy() at eapol.c:673
2  0x42e402 in ap_sta_free() at ap.c:97
3  0x439dbe in l_queue_clear() at /home/parallels/wrk/iwd/ell/queue.c:109
4  0x439e09 in l_queue_destroy() at /home/parallels/wrk/iwd/ell/queue.c:83
5  0x42e4bf in ap_reset() at ap.c:132
6  0x42e519 in ap_free() at ap.c:147
7  0x447456 in interface_instance_free() at /home/parallels/wrk/iwd/ell/dbus-service.c:513
8  0x449be0 in _dbus_object_tree_remove_interface() at /home/parallels/wrk/iwd/ell/dbus-service.c:1595
9  0x449ced in _dbus_object_tree_object_destroy() at /home/parallels/wrk/iwd/ell/dbus-service.c:787
10 0x40fb8c in device_free() at device.c:2717
11 0x405cdb in netdev_free() at netdev.c:605
12 0x439dbe in l_queue_clear() at /home/parallels/wrk/iwd/ell/queue.c:109
13 0x439e09 in l_queue_destroy() at /home/parallels/wrk/iwd/ell/queue.c:83
14 0x40aac2 in netdev_shutdown() at netdev.c:4483
15 0x403b75 in iwd_shutdown() at main.c:80
16 0x43d9f3 in signal_callback() at /home/parallels/wrk/iwd/ell/signal.c:83
17 0x43d4ee in l_main_iterate() at /home/parallels/wrk/iwd/ell/main.c:376
18 0x43d5ac in l_main_run() at /home/parallels/wrk/iwd/ell/main.c:419
19 0x40379b in main() at main.c:454
20 0x7fb6cd36788a in /lib64/libc.so.6
2018-07-30 09:07:58 -05:00
Tim Kourt
ece63270e7 adhoc: expose property 'Started' property on the Dbus 2018-07-30 09:00:57 -05:00
Tim Kourt
dda350a93d ap: expose property 'Started' property on the Dbus 2018-07-30 09:00:57 -05:00
Andrew Zaborowski
215162a49e network: Don't free known networks in network_info_put
Fix a double free resulting from network.c freeing a known network when
it goes out of range due to a missing check.
2018-07-30 08:55:27 -05:00
Andrew Zaborowski
97913c6f9a network: Refactor and move Known Networks management
Until now network.c managed the list of network_info structs including
for known networks and networks that are seen in at least one device's
scan results, with the is_known flag to distinguish known networks.
Each time the list was processed though the code was either interested
in one subset of networks or the other.  Split the list into a Known
Networks list and the list of other networks seen in scans.  Move all
code related to Known Networks to knownnetworks.c, this simplifies
network.h.  It also gets rid of network_info_get_known which actually
returned the list of all network_infos (not just for known networks),
which logically should have been private to network.c.  Update device.c
and scan.c to use functions specific to Known Networks instead of
filtering the lists by the is_known flag.

This will also allow knownnetworks.c to export DBus objects and/or
properties for the Known Networks information because it now knows when
Known Networks are added, removed or modified by IWD.
2018-07-25 09:40:14 -05:00
Andrew Zaborowski
c2abc212ad network: Make networks_connected return void
The return value from network_connected is not checked and even if one
of the storage operations fails the function should probably continue
so only print a message on error.
2018-07-23 11:46:49 -05:00
Andrew Zaborowski
ea2b83e5a7 ap: Remove unused psk field 2018-07-23 11:46:15 -05:00
James Prestwood
a68e958f29 ap: fixed crash in AP
If the device mode it toggled from 'ap' back to 'station' without actually
starting the access point ap_free attempts to zero out the psk, which
causes a crash because it had never been allocated (Start() never was
called). Since ap->psk is actually never used this was removed. Also added
a memset to zero out the pmk on cleanup.

This is the crash observed:

++++++++ backtrace ++++++++
0  0x7f6ffe978a80 in /lib64/libc.so.6
1  0x7f6ffe9d6766 in /lib64/libc.so.6
2  0x42dd51 in memset() at /usr/include/bits/string3.h:90
3  0x42ddd9 in ap_free() at src/ap.c:144
4  0x445ec6 in interface_instance_free() at ell/dbus-service.c:513
5  0x448650 in _dbus_object_tree_remove_interface() at ell/dbus-service.c:1595
6  0x40d980 in device_set_mode_sta() at src/device.c:2113
7  0x447d4c in properties_set() at ell/dbus-service.c:1861
8  0x448a33 in _dbus_object_tree_dispatch() at ell/dbus-service.c:1691
9  0x442587 in message_read_handler() at ell/dbus.c:285
10 0x43cac9 in io_callback() at ell/io.c:123
11 0x43bf5e in l_main_iterate() at ell/main.c:376
12 0x43c01c in l_main_run() at ell/main.c:419
13 0x40379d in main() at src/main.c:460
14 0x7f6ffe96288a in /lib64/libc.so.6
+++++++++++++++++++++++++++
2018-07-19 11:21:43 -05:00
Denis Kenzior
46a797043a ie: Add AKMs from 802.11-2016 2018-07-19 11:09:08 -05:00
Denis Kenzior
c4a2654703 ie: Split RSN & WPA akm suite builders 2018-07-19 10:56:46 -05:00
Denis Kenzior
438af4aebc ie: Don't fail RSNE parsing with unknown AKMs 2018-07-19 10:36:18 -05:00
Denis Kenzior
c37146d403 wsc: Rework wsc_init & wsc_exit
- wsc module does not need nl80211 any longer, so remove it.
- Move wsc_init & wsc_exit declarations to iwd.h and remove wsc.h
- re-arrange how wsc_init & wsc_exit is called inside main.c.
2018-07-17 19:19:09 -05:00
Denis Kenzior
17bfbbd397 main: Re-arrange _exit order
The plugin_exit was in the wrong place, it should be triggered in case
genl creation fails.  Also adhoc_exit was in the wrong sequence compared
to _init()
2018-07-17 19:15:08 -05:00
Denis Kenzior
6b58ab1a08 main: Simplify sim_auth_init
There's no real reason why sim_auth_init should fail, so simplify the
procedure and move declarations to iwd.h
2018-07-17 19:12:48 -05:00
James Prestwood
8cf44499d1 device: added DEVICE_EVENT_MODE_CHANGED
Rather than have device.c manage the creation/removal of
AP/AdHoc interfaces this new event was introduced. Now
anyone can listen for device events and if the mode changes
handle accordingly. This fixes potential memory leaks
in WSC when switching modes as well.
2018-07-17 18:52:59 -05:00
James Prestwood
bf3a171e3a device: added ad-hoc mode
As with station/ap, a new mode was added for ad-hoc
2018-07-17 16:55:59 -05:00
James Prestwood
682c844239 main: added adhoc init to main 2018-07-17 16:46:21 -05:00
James Prestwood
55cb9aa2e9 adhoc: adhoc implementation 2018-07-17 16:46:18 -05:00
James Prestwood
88bd69269e netdev: add join_adhoc/leave_adhoc API's
These will issue a JOIN/LEAVE_IBSS to the kernel. There is
a TODO regarding network configuration. For now, only the
SSID is configurable. This configuration is also required
for AP, but needs to be thought out. Since the current
AP Dbus API has nothing related to configuration items
such as freq/channel or RSN elements they are hard coded,
and will be for Ad-Hoc as well (for now).
2018-07-17 16:25:33 -05:00
James Prestwood
e10d79b53f netdev: ensure proper iftype on connect/disconnect
Now that the device mode can be changed, netdev must check that
the iftype is correct before starting a connection or disconnecting.
netdev_connect, netdev_connect_wsc, and netdev_disconnect now check
that the iftype is station before continuing.
2018-07-17 16:16:17 -05:00
James Prestwood
515985afed netdev: choose correct address on NEW_KEY/SET_STATION
With the introduction of Ad-Hoc, its not as simple as choosing
aa/spa addresses when setting the keys. Since Ad-Hoc acts as
both the authenticator and supplicant we must check how the netdev
address relates to the particular handshake object as well as
choose the correct key depending on the value of the AA/SPA address.
802.11 states that the higher of the two addresses is to be used
to set the key for the Ad-Hoc connection.

A simple helper was added to choose the correct addressed based on
netdev type and handshake state. netdev_set_tk also checks that
aa > spa in the handshake object when in Ad-Hoc mode. If this is
true then the keys from that handshake are used, otherwise return
and the other handshake key will be used (aa will be > spa).

The station/ap mode behaves exactly the same as before.
2018-07-17 11:13:53 -05:00
James Prestwood
27430287ab dbus: added Ad-Hoc dbus interface 2018-07-17 10:53:08 -05:00
James Prestwood
42fe517d4e netdev: added station watch
For Ad-Hoc networks, the kernel takes care of auth/assoc
and issues a NEW_STATION event when that is complete. This
provides a way to notify when NEW_STATION events occur as
well as forward the MAC of the station to Ad-Hoc.

The two new API's added:
 - netdev_station_watch_add()
 - netdev_station_watch_remove()
2018-07-17 10:50:34 -05:00
James Prestwood
54cd428c94 netdev: Add IFTYPE_ADHOC interface type
netdev_set_iftype and get_iftype were also changed to
account for all three interface types.
2018-07-17 10:49:10 -05:00
Denis Kenzior
efecce772f eapol: Fix memory allocation issues
When the EAPOL-Key data field is encrypted using AES Wrap, check
that the data field is large enough before calculating the expected
plaintext length.

Previously, if the encrypted data field was smaller than 8 bytes, an
integer underflow would occur when calculating the expected plaintext
data length. This would cause iwd to try to allocate a huge amount of
memory, which causes it to abort and terminate. If the data field was
equal to 8 bytes, iwd would try to allocate 0 bytes of memory, making
l_new return NULL, which subsequently causes iwd to crash on a NULL
pointer deference.

Reported-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
2018-07-16 10:51:13 -05:00
Denis Kenzior
57c3aa2589 scan: Fix triggered flag setting
triggered flag was being reset to false in all cases.  However, due to
how scan_finished logic works, it should have remained true if no more
commands were left to be sent (e.g. the scan was finished).
2018-07-13 12:34:59 -05:00
Tim Kourt
d83dda410d device: fix incomplete variable replacement 2018-07-13 11:41:49 -05:00
Christian Hesse
22e5ba2133 device: make the output less verbose
Having hidden SSIDs or SSIDs with non-UTF8 characters around make iwd
flood the logs with messages. Make iwd less verbose and show these
messages with enabled debug output only.
2018-07-13 10:39:02 -05:00
Tim Kourt
9ff2e59e40 scan: add hidden networks into periodic scan
In addition, the periodic scan can now alternate between the
active or passive modes. The active mode is enabled by existence of
the known hidden networks and observation of them in the
previous scan result.
2018-07-11 17:29:47 -05:00
Tim Kourt
ec8afb0af1 scan: add todo comment for randomization flag 2018-07-11 17:24:17 -05:00
Denis Kenzior
48e9f2aee0 scan: Break up logic into utility functions
Some fairly common logic was duplicated across functions.  Split it up
into common utilities
2018-07-11 17:20:06 -05:00
Denis Kenzior
dfe74ea8ff scan: Use a cast instead of an extra function 2018-07-11 16:30:45 -05:00
Tim Kourt
c33deb7a0a scan: add hidden networks into the scan requests
To support an auto-connect for the hidden networks and having
a limited number of SSIDs that can be appended into a probe
request, introduced a concept of a command batch. Now, scan request
may consist of a series of commands. The commands in the batch
are triggered sequentially. Once we are notified about the
results from a previous command, a consequent command in the
batch is triggered. The collective results are reported once
the batch is complete. On a command failure, the batch
processing is canceled and scan request is removed
2018-07-11 16:30:41 -05:00
Denis Kenzior
87108984bc network: set Hidden=true for new hidden networks 2018-07-11 16:09:42 -05:00
Denis Kenzior
d744915534 device: Rework device_hidden_network_scan_results
Rework the logic slightly to simplify the need for error labels.  Also
the connect_pending variable might not have been properly reset to NULL
in case of error, so make sure we reset it prior to calling into
network_connect_new_hidden_network
2018-07-11 15:59:51 -05:00
Tim Kourt
d8c8ebdf3a device: enable connection to the hidden networks
1) Change signature of process_bss to return a confirmation
   that bss has been added to a network otherwise we can
   discard it.

2) Implements logic for the discovery and connection to
   a hidden network.
2018-07-11 15:36:14 -05:00
Tim Kourt
72c6862255 network: add network info accessors
This adds the accessors for the hidden field in network
info. In addition, it provides a lookup of the network infos
by ssid and security type.
2018-07-11 15:20:55 -05:00
Tim Kourt
d2feb535a5 network: implement a counter for the hidden networks 2018-07-11 10:36:40 -05:00
Tim Kourt
f7a30106bf scan: initial support for the direct probe request
This enables the discovery of the hidden networks
2018-07-11 10:25:24 -05:00
Tim Kourt
d1a8e191e9 network: introduce connect API for the hidden nets 2018-07-11 10:19:43 -05:00
James Prestwood
bbad6b4ec9 ap: use netdev_del_station API
Removes del station code from AP in favor of netdev_del_station.
2018-07-03 16:45:29 -05:00
James Prestwood
4a2b80ee97 netdev: expose netdev_del_station
This removes the need for duplicate code in AP/netdev for issuing
a DEL_STATION command. Now AP can issue a DEL_STATION with
netdev_del_station, and specify to either disassociate or deauth
depending on state.
2018-07-03 16:45:29 -05:00
James Prestwood
b2f27f3abe netdev: fixed key setting failure
If netdev fails to set the keys, there was no way for device/ap to
know. A new handshake event was added for this. The key setting
failure function was also fixed to support both AP/station iftypes.
It will now automatically send either a disconnect or del_station
depending on the interface type.

In similar manner, netdev_handshake_failed was also modified to
support both AP/station iftypes. Now, any handshake event listeners
should call netdev_handshake_failed upon a handshake failure
event, including AP.
2018-07-03 16:45:25 -05:00
James Prestwood
d4e521027b device: add debug prints for mode switching
Its useful to know when the device has switched modes
2018-07-03 16:15:54 -05:00
Denis Kenzior
5b8f052524 device: Don't return an error on no state change
If device is already disconnected or in autoconnect mode, don't return
an error if .Disconnect is called.  Instead simply silently return
success after disabling autoconnect.
2018-07-03 16:13:39 -05:00
Denis Kenzior
73e0394d7f device: Use dbus_error_from_errno in .Disconnect 2018-07-03 16:12:04 -05:00
Denis Kenzior
8bbe85787c device: Fix memory leak when aborting a connection
==1058== 231 (32 direct, 199 indirect) bytes in 1 blocks are definitely lost in loss record 10 of 10
==1058==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1058==    by 0x452472: l_malloc (util.c:62)
==1058==    by 0x456324: l_settings_new (settings.c:83)
==1058==    by 0x427D45: storage_network_open (storage.c:262)
==1058==    by 0x42806C: network_settings_load (network.c:75)
==1058==    by 0x428C2F: network_autoconnect (network.c:490)
==1058==    by 0x4104E9: device_autoconnect_next (device.c:194)
==1058==    by 0x410E38: device_set_scan_results (device.c:393)
==1058==    by 0x410EFA: new_scan_results (device.c:414)
==1058==    by 0x424A6D: scan_finished (scan.c:1012)
==1058==    by 0x424B88: get_scan_done (scan.c:1038)
==1058==    by 0x45DC67: destroy_request (genl.c:134)
2018-07-03 15:45:29 -05:00
Tim Kourt
5f69aba32b eap-peap: add warning for the missing M flag 2018-07-02 20:28:08 -05:00
James Prestwood
9e32ea5e80 ap: removed unused ap_event enum 2018-07-02 15:34:26 -05:00
Denis Kenzior
fb1296e9c0 network: Add network_info_get_known 2018-07-02 13:03:03 -05:00
James Prestwood
8ed043533a wsc: register for handshake events
This is a fixup for the AP code merge. wsc.c never registered
for handshake events, so in case of failure it was never calling
netdev_handshake_failed, which caused a double free.
2018-07-02 12:29:08 -05:00
Denis Kenzior
057b019550 network: Use __device_connect_network
In network_autoconnect, use the low-level version of
device_connect_network
2018-07-02 12:28:10 -05:00
Denis Kenzior
a1a6c2d7d6 device: Introduce __device_connect_network
The version with '__' prefix is the raw version that returns errnos.
The version without '__' prefix deals with D-Bus error conversion.
2018-07-02 12:25:47 -05:00
Denis Kenzior
31081f98e7 dbus: Add dbus_error_from_errno 2018-07-02 12:24:33 -05:00
Denis Kenzior
7f844a2520 eapol: Relax key_iv checks
Many APs don't send properly zerod key_iv elements in EAPoL-Key frames.
In the past iwd has complained, but this broken behavior is so
prevalent, that it is likely a lost cause.

This patch takes out these warnings
2018-07-01 20:57:38 -05:00
Denis Kenzior
1c9a1ea46d eapol: Handle all zero PMKID 2018-07-01 20:48:11 -05:00
Denis Kenzior
7676aa2107 netdev: Allow iwd.conf to specify PAE over NL80211
Right now iwd uses Control Port over NL80211 feature if the kernel /
driver supports it.  On some kernels this feature is still buggy, so add
an iwd.conf entry to allow the user to override id.

For now the default is to disable this feature until it is more stable.
2018-07-01 20:41:34 -05:00
James Prestwood
fd79297553 device/ap: Moved AP dbus interface into ap.c
Now, a user can setup an AP as follows:

- Set device "Mode" to ap (ap interface will appear on bus)
- call "Start()" on AP interface

Issuing "Stop()" on the AP interface will stop and cleanup
the internal AP structures, but the AP interface will remain
up. To shutdown completely the device Mode must be switched
back to station. If the AP interface is running, the Mode can
directly be switched to station without calling Stop; this
has the same effect and will take down the AP interface.
2018-06-29 18:28:28 -05:00
Tim Kourt
9976007dd8 eap-peap: Relax the M bit requirement
Some of the PEAP server implementation brake the protocol
and don’t set the M flag for the first packet during the
fragmented transmission. To stay compatible with such
devices, we relax this requirement in iwd.
2018-06-29 17:39:50 -05:00
James Prestwood
d5dd1a4e90 wsc: fixed comment typo 2018-06-29 16:41:13 -05:00
James Prestwood
1d8869fbb7 dbus: define AccessPoint interface
net.connman.iwd.AccessPoint interface was added
2018-06-29 14:26:07 -05:00
Tim Kourt
1fff705160 device: use direct probe request in roam scans
This takes care of the roaming for the hidden networks.
In addition, it limits the noise responses from the
other networks.
2018-06-29 13:53:39 -05:00
Tim Kourt
5ded4890a6 network: introduce the concept of hidden networks 2018-06-29 13:51:12 -05:00
Tim Kourt
1ffc99c343 scan: add ssid parameter
ssid – is used for the direct probe requests
2018-06-29 13:48:09 -05:00
Tim Kourt
d91b81bc11 dbus: add AlreadyProvisioned and NotHidden errors 2018-06-29 13:46:33 -05:00
Tim Kourt
28c6a37db0 scan: rename scan triggered callback 2018-06-28 15:56:46 -05:00
Tim Kourt
27e305c9d2 device: change scan command logic
This patch allows alternating between the passive and active
scans taking into consideration an existence of the known
hidden networks and previous observation of them in the scan
results, as well as an ability to randomize the MAC address.
2018-06-28 15:44:57 -05:00
Denis Kenzior
5828073cd5 scan: Add randomize_mac_addr_hint
This will be used by the scanning code to enable mac address
randomization if supported by the hardware / kernel.
2018-06-28 15:41:29 -05:00
Tim Kourt
ef5110869b network: Add stub for network_info_has_hidden 2018-06-28 15:06:11 -05:00
Denis Kenzior
961c3e849d eap-peap: Print alert number 2018-06-28 13:23:13 -05:00
Tim Kourt
8ea4f82166 device: introduce seen_hidden_networks flag
This flag indicates whether the hidden networks were
observed in the scan results. We drop the hidden network BSSs
after the flag is set.
2018-06-28 11:37:10 -05:00
Tim Kourt
3781c157db util: Add util_ssid_is_hidden 2018-06-28 11:37:06 -05:00
Tim Kourt
a681e845a6 scan: change signature of scan_build_cmd
This allows scan_build_cmd to take advantage of a full
scan context. For example to check the feature availability
of wiphy, etc.
2018-06-28 11:25:30 -05:00
Tim Kourt
bece39619b scan: fix scan state check
The state of scan is split between the two variables sc->state
and sc->start_cmd_id. Not checking start_cmd_id used to cause
sending a scan request while periodic scan was just triggered
resulting in EBUSY.
2018-06-28 11:13:45 -05:00
James Prestwood
93a113f551 ap: remove ap_error_deauth_sta
Instead of manually sending a deauth/disassociate to a station
during an error or removal, the kernel can do it automatically
with DEL_STATION by including the MGMT_SUBTYPE attribute. This
removes the need for ap_error_deauth_sta and introduces
ap_deauthenticate_sta. Now AP can be explicit when it chooses
to deauth or disassociate.
2018-06-28 11:12:11 -05:00
Tim Kourt
48b7ed1e47 dbus: Add error msg for the service set overlap
The intended usage of this error is to notify a client
application about the presence of the multiple overlapping
network sessions.
2018-06-27 19:37:30 -05:00
James Prestwood
92f1ceb3ce netdev/eapol: removed eapol deauthenticate
This removes the need for the eapol/netdev deauthenticate function.
netdev_handshake_failed was exposed so device.c could issue the
disconnect.
2018-06-27 16:17:14 -05:00
James Prestwood
4ed30ff661 ap: removed code that was moved to eapol
All handshake packet handling has been removed from ap and
moved to eapol. After association, the AP registers a new
authenticator state machine which handles the AP side of
the handshake. AP will receive a handshake event once the
4-way handshake is complete.
2018-06-27 14:21:16 -05:00
James Prestwood
9d4f1b4ca6 eapol: moved AP authenticator into eapol
Includes:
 - support for handling ptk 2/4 and 4/4. Also sending 1/4 and 3/4.
 - new API to register an authenticator SM. This automatically
   sends 1/4 to kick off authentication with an sta.
2018-06-22 14:40:20 -05:00
James Prestwood
b81a9482b4 netdev: added checks for station/ap iftype
These checks allow both a station and authenticator to use
the same netdev key install functions. For NEW_KEY and
SET_STATION, the iftype is checked and either handshake->aa
or ->spa is used as the station address for the KEY/STATION
commands. Also, in the failure cases, a disconnect command
is issued only if the iftype is station as this doesn't
apply to AP.
2018-06-22 14:33:32 -05:00
James Prestwood
aac00bf33a handshake: remove handshake related netdev events
Handshake related netdev events were removed in favor of
handshake events. Now events will be emitted on the handshake
object related to the 4-way handshake and key settings. Events
are:

HANDSHAKE_EVENT_STARTED
HANDSHAKE_EVENT_SETTING_KEYS
HANDSHAKE_EVENT_COMPLETE
HANDSHAKE_EVENT_FAILED

Right now, since netdev only operates in station mode, nothing
listens for COMPLETE/FAILED, as device/wsc gets notified by the
connect_cb when the connection was successful. The COMPLETE/
FAILED were added in preperation for AP moving into eapol/netdev.
2018-06-22 14:21:50 -05:00
Denis Kenzior
c5893f7da8 network: Fix memory leak in network_set_psk
==1057== 32 bytes in 1 blocks are definitely lost in loss record 1 of 1
==1057==    at 0x4C2AF0F: malloc (vg_replace_malloc.c:299)
==1057==    by 0x15E9A2: l_malloc (util.c:62)
==1057==    by 0x15EA9D: l_memdup (util.c:121)
==1057==    by 0x133D9A: network_set_psk (network.c:350)
==1057==    by 0x13BD29: wsc_try_credentials (wsc.c:136)
==1057==    by 0x13C121: wsc_connect_cb (wsc.c:220)
==1057==    by 0x110FAF: netdev_connect_failed (netdev.c:525)
==1057==    by 0x16AAF4: process_unicast (genl.c:390)
==1057==    by 0x16AF03: received_data (genl.c:509)
==1057==    by 0x166CB6: io_callback (io.c:123)
==1057==    by 0x16580D: l_main_iterate (main.c:376)
==1057==    by 0x16594B: l_main_run (main.c:423)
2018-06-21 20:14:00 -05:00
Denis Kenzior
3df790e3c5 handshake: Switch to superclass api 2018-06-21 20:10:07 -05:00
Denis Kenzior
b5e01226cb netdev: Remove un-needed pairwise set_key call
This seems to be no longer needed as the kernel looks up the key by the
sta specific key index.
2018-06-21 20:10:07 -05:00
James Prestwood
2177b22caa handshake: Add utility to generate a new anonce
AP EAPoL state machine will need to generate the anonce, so as
with snonce, an API was added to do that.
2018-06-20 14:04:54 -05:00
James Prestwood
b059a699ab netdev: refactored code to prep for AP code
Added several helpers for code that will be reused by AP
2018-06-20 14:02:07 -05:00
Denis Kenzior
d76cf840ed eap-ttls: Rename eap to phase2_eap for clarity 2018-06-20 13:55:15 -05:00
Denis Kenzior
a217b4f8b9 eap-ttls: Remove eap_new calls after load_settings
load_settings ensures that ttls->eap is correctly initialized.  So this
code should be treated as an error condition.

We also do not support EAP chaining, so remove that logic as well
2018-06-20 13:55:15 -05:00
Denis Kenzior
2fe2ed61e1 netdev: Set netdev->type to NL80211 enum 2018-06-20 08:23:22 -05:00
James Prestwood
0b5a3da2ef netdev: fixed netdev_set_iftype
While this would issue a SET_INTERFACE to the kernel it would
not actually set netdev->type, so netdev_get_iftype would
return incorrectly.
2018-06-19 16:13:39 -05:00
Antonio Quartulli
1de8d18883 main: don't crash if DBus is not running
dbus_init() currently does not check for the g_dbus object being
properly initialized and this leads to crashes when dbus is not yet
running.

Ensure g_dbus is properly initialized and return false otherwise.
In this case the caller can understand that something went wrong and
stop the initialization procedure.

Program received signal SIGSEGV, Segmentation fault.
0x00005555555bc089 in l_dbus_add_service_watch (dbus=0x0,
name=0x5555555e5b0a "org.ofono",
    connect_func=0x5555555aa81e <ofono_found>,
disconnect_func=0x5555555aa8e6 <ofono_disappeared>,
    user_data=0x0, destroy=0x0) at ell/dbus.c:1621
1621		if (!dbus->name_cache)
(gdb) bt
name=0x5555555e5b0a "org.ofono",
    connect_func=0x5555555aa81e <ofono_found>,
disconnect_func=0x5555555aa8e6 <ofono_disappeared>,
    user_data=0x0, destroy=0x0) at ell/dbus.c:1621
user_data=0x0) at ell/plugin.c:115
function=0x5555555b40fd <plugin_start>,
    user_data=0x0) at ell/queue.c:441
version=0x0) at ell/plugin.c:201
src/plugin.c:82
src/main.c:417
2018-06-15 10:59:07 -05:00
Denis Kenzior
8112806aca eap-mschapv2: Fix uninitialized use of memory
When the response structure is generated, not all of the memory was
initialized to 0.

==1045== Syscall param socketcall.sendto(msg) points to uninitialised byte(s)
==1045==    at 0x5134D52: send (in /lib64/libc-2.25.so)
==1045==    by 0x168AB5: l_checksum_update (checksum.c:338)
==1045==    by 0x186777: tls_write_mac (tls-record.c:58)
==1045==    by 0x1869D1: tls_tx_record_plaintext (tls-record.c:120)
==1045==    by 0x186DEA: tls_tx_record (tls-record.c:201)
==1045==    by 0x185A3B: l_tls_write (tls.c:2064)
==1045==    by 0x14584F: eap_ttls_eap_tx_packet (eap-ttls.c:321)
==1045==    by 0x14236C: eap_send_response (eap.c:165)
==1045==    by 0x147904: eap_mschapv2_send_response (eap-mschapv2.c:468)
==1045==    by 0x147A10: eap_mschapv2_handle_challenge (eap-mschapv2.c:492)
==1045==    by 0x147E9A: eap_mschapv2_handle_request (eap-mschapv2.c:615)
==1045==    by 0x142693: __eap_handle_request (eap.c:240)
==1045==  Address 0x1ffeffe7f9 is on thread 1's stack
==1045==  in frame #4, created by tls_tx_record (tls-record.c:177)
==1045==  Uninitialised value was created by a stack allocation
==1045==    at 0x1477AE: eap_mschapv2_send_response (eap-mschapv2.c:443)
==1045==
==1045== Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s)
==1045==    at 0x5134E3B: sendmsg (in /lib64/libc-2.25.so)
==1045==    by 0x17F691: operate_cipher (cipher.c:356)
==1045==    by 0x17F9D8: l_cipher_encrypt (cipher.c:446)
==1045==    by 0x186BAA: tls_tx_record_plaintext (tls-record.c:152)
==1045==    by 0x186DEA: tls_tx_record (tls-record.c:201)
==1045==    by 0x185A3B: l_tls_write (tls.c:2064)
==1045==    by 0x14584F: eap_ttls_eap_tx_packet (eap-ttls.c:321)
==1045==    by 0x14236C: eap_send_response (eap.c:165)
==1045==    by 0x147904: eap_mschapv2_send_response (eap-mschapv2.c:468)
==1045==    by 0x147A10: eap_mschapv2_handle_challenge (eap-mschapv2.c:492)
==1045==    by 0x147E9A: eap_mschapv2_handle_request (eap-mschapv2.c:615)
==1045==    by 0x142693: __eap_handle_request (eap.c:240)
==1045==  Address 0x1ffeffe7f9 is on thread 1's stack
==1045==  in frame #4, created by tls_tx_record (tls-record.c:177)
==1045==  Uninitialised value was created by a stack allocation
==1045==    at 0x1477AE: eap_mschapv2_send_response (eap-mschapv2.c:443)
==1045==
2018-06-15 07:55:41 -05:00