Commit graph

2382 commits

Author SHA1 Message Date
Jouni Malinen
d75e880696 P2P: Try to re-create group interface if pending one is not available
This is needed to work around cases where the pending interface gets
removed, e.g., due to failed GO Negotiation. In such case, we may still
accept new GO Negotiation to be completed, but the interface did not
get created without a separate p2p_connect command.

The current implementation is not ideal since the re-created interface
may, at least in theory, get incorrect interface addrees. Though, this
would likely require that the driver supported more than one P2P group
interface and that the previous one was already taken into use for
another group.
2010-10-18 17:00:50 +03:00
Jouni Malinen
99ba7f889b WPS: Do not drop subscriptions based on max queue length
UPnP event subscriptions are not supposed to be dropped based on
whether events can be delivered quickly enough. Leave dropping to
happen only based on failed deliveries to avoid issues with a burst
of events kicking out still active subscribers.
2010-10-17 21:36:04 +03:00
Jouni Malinen
f30e698c08 WPS UPnP: Add more priority for queuing EAP events 2010-10-17 21:30:25 +03:00
Jouni Malinen
08a98b6544 WPS UPnP: Throttle WLANEvent notifications to 5 per second
Do not send more than five Probe Request WLANEvent notifications
per second. Even though the limit should in theory apply to all
WLANEvents, it is better not to drop EAP notifications because
of Probe Request frames and really, the only real reason for
event bursts is Probe Request frames.
2010-10-17 21:24:12 +03:00
Jouni Malinen
3904567d0b WPS: Limit Probe Request event queuing if subscriber may have left
Instead of queuing all events for a subscriber, only queue more
important events if delivery of event notifications starts failing.
This allows more time for the subscriber to recover since the maximum
queue length if not reached because of Probe Request frames only.
2010-10-17 20:58:58 +03:00
Jouni Malinen
d1e17fbc9c WPS: Schedule sending of pending events after failure
There is no point leaving these pending events waiting for something
new to trigger us to continue.
2010-10-17 20:57:11 +03:00
Jouni Malinen
8c3a2f11ab WPS: Separate local error from max queue length reached
Drop subscription only if the max queue length has been reached;
not based on any error.
2010-10-17 20:29:28 +03:00
Jouni Malinen
dd50c2d425 WPS UPnP: Improved event notification failure processing
Instead of dropping the subscription on first failure, allow up to
10 failures before dropping. In addition, drop the callback URLs
one by one instead of full subscription if only one URL is failing.
2010-10-17 20:26:03 +03:00
Jouni Malinen
10fb1a984f WPS: Convert assert() to error return 2010-10-17 20:23:51 +03:00
Jouni Malinen
1f1d4df09a WPS UPnP: Fix memory leak on retry case
The event entry needs to be freed when giving up on retries.
2010-10-17 20:22:03 +03:00
Jouni Malinen
3953627b35 WPS: Add more debug info for UPnP operations 2010-10-17 20:20:28 +03:00
Jouni Malinen
ed31b5ebcf WPS: Remove unused define
This timeout value was moved to now separate HTTP client implementation.
2010-10-17 20:15:08 +03:00
Jouni Malinen
75c3fc2e8a WPS: Cleaned up URL parser not to modify const buffer
There is no need to use '\0' termination here in string parsing,
so we may as well clean this up to follow the const declaration.
2010-10-17 20:12:54 +03:00
Jouni Malinen
75779589e8 WPS: Drop subscription if it does not have any valid callback address 2010-10-17 20:11:03 +03:00
Jouni Malinen
d0ebf3285f WPS: Remove unused error path code 2010-10-17 20:10:09 +03:00
Jouni Malinen
acd0ef4d3c WPS UPnP: Fix HTTP client timeout event code
The define here was overriding the event code enum value and that
resulted in incorrect code being used and WPS UPnP code ignoring the
timeout events.
2010-10-17 20:07:33 +03:00
Jouni Malinen
092acb5441 WPS: Add virtual flags in Config Methods for WPS 2.0 if needed
This is a workaround for incorrect configuration (missing
virtual/physical identifier for config methods) for WPS 2.0 to
allow unmodified configuration from WPS 1.0 to be used while
enforcing compliant WPS 2.0 values.
2010-10-16 12:57:47 +03:00
Jouni Malinen
0e8da74e22 Fix build with drivers that use driver_wext.c
If CONFIG_DRIVER_WEXT=y is not used in .config, but driver_wext.c
gets pull in to help another driver wrapper, rfkill code needs to
included to fix the build.
2010-10-15 22:11:33 +03:00
Jouni Malinen
33c5deb816 nl80211: Indicate channel list change events
Listen to regulatory event messages from kernel and convert them to
internal driver event notifications indicated that the channel list
may have changed.
2010-10-15 18:56:36 +03:00
Jouni Malinen
b5c9da8db3 P2P: Add mechanism for updating P2P channel list based on driver events
This allows P2P channel list to be updated whenever the driver changes
its list of allowed channels, e.g., based on country code from scan
results.
2010-10-15 18:55:22 +03:00
Jouni Malinen
ac8d1011b7 P2P: Set channel list per channel instead of per band
This makes the channel list match with driver capabilities without
having to do workaround like disabling channels 12-14.
2010-10-15 18:51:37 +03:00
Jouni Malinen
4ae4650b4c P2P: Verify that forced channel is suitable for autonomous GO 2010-10-15 18:48:06 +03:00
Anil Gathala Sudha
a0dee79709 P2P: Send AP mode WPS-FAIL event to parent interface
The AP operation with wpa_supplicant requires an additional callback
to get the needed event information from hostapd side so that
wpa_msg() can be called for wpa_s->parent if needed.
2010-10-14 20:57:00 +03:00
Jouni Malinen
545cc6af25 P2P: Send WPS-FAIL event to parent interface, too
This makes it easier to figure out what went wrong during group
formation when per-group interfaces are used.
2010-10-14 20:52:31 +03:00
Jouni Malinen
fc215bfe86 WPS: Add WPS-FAIL ctrl_interface event for hostapd 2010-10-14 20:50:46 +03:00
Jouni Malinen
81611b95ff WPS: Add Config Error into WPS-FAIL events
This makes it easier to figure out what could have failed in the
WPS protocol and potentially provide more information for the
user on how to resolve the issue.
2010-10-14 20:49:54 +03:00
Jouni Malinen
d054a4622c P2P: Reject multi-channel concurrent operations depending on driver
The driver wrapper can now indicate whether the driver supports
concurrent operations on multiple channels (e.g., infra STA connection
on 5 GHz channel 36 and P2P group on 2.4 GHz channel 1). If not,
P2P_CONNECT commands will be rejected if they would require
multi-channel concurrency.

The new failure codes for P2P_CONNECT:

FAIL-CHANNEL-UNAVAILABLE:
The requested/needed channel is not currently available (i.e., user has
an option of disconnecting another interface to make the channel
available).

FAIL-CHANNEL-UNSUPPORTED:
The request channel is not available for P2P.
2010-10-14 14:24:56 +03:00
Jouni Malinen
7861cb08c9 P2P: Share code for p2p_connect/authorize channel preparation 2010-10-14 12:45:15 +03:00
Jouni Malinen
1e19f73495 P2P: Verify that p2p_connect forced frequency is allowed for P2P
Do not accept forced frequency unless the specified channel is
allowed for P2P, i.e., is included in the local list of
advertised channels.
2010-10-14 12:42:17 +03:00
Paul Stewart
174fa7898e bgscan: Add new channel condition parameters to signal change events
bgscan modules can potentially get a richer feel for the channel
condition and make better choices about scan/no-scan and roam/no-roam.
2010-10-12 20:03:36 +03:00
Paul Stewart
7ee35bf395 nl80211: Add more details into signal change events
Add new survey retrieval function and add txrate to station into the
EVENT_SIGNAL_CHANGE events.
2010-10-12 20:01:50 +03:00
Jouni Malinen
3b29972c09 P2P: Limit p2p_connect .. pbc join based on BSSID
Allow only the expected P2P Interface Address as the BSSID for
the AP to avoid selecting incorrect BSS should there be another
device that is advertising active PBC mode before the target
P2P GO does.
2010-10-12 16:56:17 +03:00
Jouni Malinen
68d6fe5693 WPS: Workaround broken Credential encoding from some D-Link APs
At least D-Link DIR-600 and DIR-825 have been reported to include
an extra octet after the Network Key attribute within a Credential
attribute. This can happen at least when they are provisioning an
open network.

Add a workaround to detect this incorrectly encoded attribute and
to skip the extra octet when parsing such a Credential.
2010-10-11 16:07:49 +03:00
Johannes Berg
5582a5d1b3 nl80211: Use nl80211 for Probe Request/Response frames
The new nl80211 API means we don't need to use monitor interfaces. This
means that the P2P implementation now requires a kernel that has support
for generic management frame (not just Action frame) transmission.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 18:10:37 +03:00
Johannes Berg
9884f9cc1c nl80211: Refactor Action frame TX
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 18:00:25 +03:00
Johannes Berg
bd94971e11 nl80211: Use new frame registration API
This is backward compatible since older kernels will ignore the extra
attribute and only allow registration for Action frames.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:55:18 +03:00
Johannes Berg
6cb22d2fd1 P2P: Fix remain-on-channel abort race
When the P2P state machine requests a remain- on-channel, there's a
potential race where it can then request a stop before the r-o-c has
actually started, in which case the stop will not be processed. Fix
that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:52:13 +03:00
Johannes Berg
6ee04cfcf4 nl80211: support intra-BSS configuration
Using the AP_ISOLATE nl80211 option, we can support intra-BSS
distribution configuration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:48:54 +03:00
Johannes Berg
a65a9aed7e nl80211: work around libnl bug
libnl has a bug, when binding more than two sockets and releasing one,
it will release the wrong address and then try to reuse it, which fails.
Therefore, we need to reimplement the socket address assignment logic
locally for libnl 1.1.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-10-10 17:47:15 +03:00
Jouni Malinen
4e698e5c30 WPS: Fix WPS commands in wpa_supplicant AP mode
Commit 9290cc1800 broke this by moving
to use for_each_interface() which is not available in wpa_supplicant
AP mode.
2010-10-10 17:43:42 +03:00
Jouni Malinen
ca0d6b81d6 P2P: Fix a typo to fix CONFIG_P2P=y build
Previous typo fix was missed here.
2010-10-10 17:28:47 +03:00
Paul Stewart
8ee69e0633 dbus_new_handlers: Don't send NULL to dbus_message_new_error
The new DBus API helper function wpas_dbus_error_unknown_error
function can be called as a result of a failure within internal
getter calls, which will call this function with a NULL message
parameter.  However, dbus_message_new_error looks very unkindly
(i.e, abort()) on a NULL message, so in this case, we should not
call it.

I've observed this course of events during a call to
wpas_dbus_getter_bss_wpa with a faileld parse of the IE parameter.
We got here through a call to fill_dict_with_properties which
explicitly calls getters with a NULL message parameter.  Judging
from the way it is called, this could easily occur if an AP sends
out a malformed (or mis-received) probe response.  I usually run
into this problem while driving through San Francisco, so I'm
exposed to any number of base stations along this path.
2010-10-09 17:29:51 +03:00
Daniel Kurtz
556522ee09 dbus: Treat '' in SSIDs of Interface.Scan as a request for broadcast scan
This patch changes wpa_supplicant policy for handling '' in SSIDs field of
Interface.SSID DBus message. It treats '' (zero-length) SSID as a request
for a broadcast scan, instead of ignoring it.

This patch updates DBus API .Scan() logic per the test cases listed below:

1) Interface.Scan({'Type':'active', 'Channel':(2412, 20)})
   Request:     Active scan with only '' SSID (1 channel)
   Should be:   1 broadcast ProbeRequest on specified channel
   Previous:    1 broadcast ProbeRequest on specified channel
   This Patch:  1 broadcast ProbeRequest on specified channel

2) Interface.Scan({'Type':'active', 'Channel':(2412, 20), 'SSIDs':['']})
   Request:     Active scan with only '' SSID (1 channel)
   Should be:   1 broadcast ProbeRequest on specified channel
   Previous:    No ProbeRequests; passive scan results for specified channel
   This Patch:  FIXED: 1 broadcast ProbeRequest on specified channel

3) Interface.Scan({'Type':'active', 'Channel':(2412, 20), 'SSIDs':['MySSID']})
   Request:     Active scan with only non-'' SSIDs (1 channel)
   Should be:   1 directed ProbeRequest for each SSID on specified channel,
	no broadcast ProbeRequest
   Previous:    1 directed ProbeRequest for each SSID on specified channel,
	no broadcast ProbeRequest
   This Patch:  1 directed ProbeRequest for each SSID on specified channel,
	no broadcast ProbeRequest

4) Interface.Scan({'Type':'active', 'Channel':(2412, 20), 'SSIDs':['',
	'MySSID']})
   Request:     Active scan with SSIDs, including 1 '' SSID (1 channel)
   Should be:   1 broadcast ProbeRequest, 1 directed ProbeRequest for each
	non-'' SSID on specified channel
   Previous:    1 directed ProbeRequest for each non-'' SSID on specified
	channel
   This Patch:  FIXED: 1 broadcast ProbeRequest, 1 directed ProbeRequest for
	each non-'' SSID on specified channel
2010-10-09 16:27:53 +03:00
Daniel Kurtz
a7af023b84 dbus: Fix passive/active scans in some cases
Currently the DBus Interface.Scan API is counter-intuitive. It issues
ProbeRequests when doing passive scans when channels are specified, and
does not issue ProbeRequests for broadcast active scans.

This patch updates DBus API .Scan() logic per the test cases listed below:

 1) Interface.Scan({'Type':'passive'})
    Request:     Passive scan (all channels)
    Should be:   No ProbeRequests; Passive Scan results for all channels
    Previous:    1 ProbeRequest on all channels for both broadcast SSID and
	selected network (scan_ssid=1)
    This Patch:  --No change--: 1 ProbeRequest on all channels for both
	broadcast SSID and selected network (scan_ssid=1)

 2) Interface.Scan({'Type':'passive', 'Channel':(2412, 20)})
    Request:     Passive scan (1 channel)
    Should be:   No ProbeRequests; Passive Scan results for 1 channel
	(plus overlapping channels)
    Previous:    1 broadcast ProbeRequest on specified channel
    This Patch:  --Fixed--: No ProbeRequests; Passive Scan results for 1
	channel (plus overlapping channels)

 3) Interface.Scan({'Type':'active'})
    Request:     Active scan with no SSIDs (all channels)
    Should be:   1 broadcast ProbeRequest on all channels
    Previous:    No ProbeRequests;  passive scan results for all channels
    This Patch:  --Fixed--: 1 broadcast ProbeRequest on all channels

 4) Interface.Scan({'Type':'active', 'Channel':(2412, 20)})
    Request:     Active scan with no SSIDs (1 channel)
    Should be:   1 broadcast ProbeRequest on specified channel
    Previous:    No ProbeRequests; Passive scan results for specified
	channel (plus overlapping channels)
    This Patch:  --Fixed--: 1 broadcast ProbeRequest on specified channel
2010-10-09 16:22:39 +03:00
Jouni Malinen
257a515295 nl80211: Sync with wireless-testing.git 2010-10-09 11:57:05 +03:00
Jouni Malinen
c3fc47ea8e EAP server: Allow reauth to be started with passthrough
Some sequencies of EAPOL logoff/logon/start messages seem to be
able to get the previous implementation into state where hostapd
would not be able to start reauthentication when external
authentication server is used. The EAP server code would bypass
the initial Identity Request generation and EAPOL code would not
be able to send anything to the authentication server or supplicant
at that point. Work around this by forcing EAP server code to
start with Identity Request after INITIALIZE state even if the
Identity is known.
2010-10-09 08:53:45 +03:00
Jouni Malinen
dce044cce5 P2P: Extend P2P manager functionality to work with driver MLME
Add P2P IE into Beacon, Probe Response, and (Re)Association Request
frames for drivers that generate this frames internally.
2010-10-08 18:16:07 +03:00
Jouni Malinen
b74c19faf5 P2P: Fix a typo in P2P manager definition 2010-10-08 18:15:38 +03:00
Jouni Malinen
088a225586 Fix hostapd_cli get_config not to show key when WPA is disabled
Previously, incorrectly configured passphrase or group cipher type
could be shown even if WPA was disabled.
2010-10-08 17:36:52 +03:00
Jouni Malinen
2f7d9f2dd9 Apply WPS configuration changes to all interfaces that use WPS
When a single hostapd process is controlling multiple interfaces,
apply the received or auto-generated configuration changes to all
interfaces that have enabled WPS.
2010-10-08 17:32:10 +03:00