Commit graph

629 commits

Author SHA1 Message Date
Jouni Malinen
95f02a5ddd nl80211: Make PMKSA caching candidate event WEXT_COMPAT 2009-03-20 22:57:46 +02:00
Jouni Malinen
f555b6dec1 nl80211: Mark PMKSA cache operations with WEXT_COMPAT
These are not needed with wpa_supplicant SME.
2009-03-20 22:55:24 +02:00
Jouni Malinen
af723760ba nl80211: Fix no-WEXT_COMPAT build
wpa_driver_nl80211_set_ssid() and wpa_driver_nl80211_set_freq() are only
for WEXT_COMPAT now that the user space MLME code is removed.
2009-03-20 22:44:53 +02:00
Jouni Malinen
625f587b03 nl80211: Remove user space MLME code
This design did not make it into the kernel and the new user space SME
design has removed the need for keeping the experimental code.
2009-03-20 22:31:24 +02:00
Jouni Malinen
c2a0407851 Add SME support (separate authentication and association)
This can be used, e.g., with mac80211-based Linux drivers with
nl80211. This allows over-the-air FT protocol to be used (IEEE
802.11r).

Since the nl80211 interface needed for this is very recent (added
today  into wireless-testing.git), driver_nl80211.c has backwards
compatibility code that uses WEXT for association if the kernel does
not support the new commands. This compatibility code can be
disabled by defining NO_WEXT_COMPAT. That code will also be removed
at  some point to clean up driver_nl80211.c.
2009-03-20 22:26:41 +02:00
Jouni Malinen
7c2849d2a0 Add BSS flags to scan results to indicate signal quality validity
These flags are used to mark which values (level, noise, qual) are
invalid (not available from the driver) and whether level is using dBm.
D-Bus interface will now only report the values that were available.
2009-02-18 13:40:38 +02:00
Jouni Malinen
d173df5232 nl80211: Use per-scan request WPS IE
Replace the global set probe request IEs mechanism with a new nl80211
option for specifying vendor IEs for each scan request.
2009-02-18 12:49:25 +02:00
Jouni Malinen
6a1063e008 driver_nl80211: Add support for multi-SSID scan requests 2009-02-14 21:17:46 +02:00
Jouni Malinen
362f781e1c Allow multiple driver wrappers to be specified on command line
For example, -Dnl80211,wext could be used to automatically select
between nl80211 and wext. The first driver wrapper that is able to
initialize the interface will be used.
2009-02-14 16:43:43 +02:00
Jouni Malinen
7d315b7b42 nl80211: Remove one second sleep after iface up
This workaround was needed with some drivers that used WEXT, but there
is no known nl80211-enabled driver that would need this, so lets get rid
of the extra delay.
2009-02-12 22:05:36 +02:00
Jouni Malinen
80bc75f135 New driver capability info: max number of scan SSIDs
The driver wrappers can now inform wpa_supplicant how many SSIDs can
be used in a single scan request (i.e., send multiple Probe Requests
per channel). This value is not yet used, but it can eventually be used
to allow a new scan command to specify multiple SSIDs to speed up
scan_ssid=1 operations. In addition, a warning could be printed if
scan_ssid=1 is used with a driver that does not support it
(max_scan_ssids=0).
2009-02-12 22:05:32 +02:00
Jouni Malinen
97865538ba nl80211: Replace WEXT scan event with nl80211
Use the new nl80211 scan event mechanism instead of the WEXT event.
This completes the move from WEXT scanning into nl80211 scanning.
2009-02-12 20:19:49 +02:00
Jouni Malinen
b3db1e1cd3 nl80211: Replace SIOCGIWSCAN with NL80211_CMD_GET_SCAN
This replaces the WEXT mechanism for fetching scan results with the new
nl80211 mechanism.
2009-02-12 20:19:33 +02:00
Jouni Malinen
0e75527f7e nl80211: Replace SIOCSIWSCAN with NL80211_CMD_TRIGGER_SCAN
This is the first step in replacing WEXT-based scan with the new
nl80211-based mechanism.
2009-02-12 20:19:09 +02:00
Jouni Malinen
42f1ee7d1f Fixed scan buffer increasing with WEXT
We can now handle up to 65535 byte result buffer which is the maximum
due to WEXT using 16-bit length field. Previously, this was limited to
32768 bytes in practice even through we tried with 65536 and 131072
buffers which we just truncated into 0 in the 16-bit variable.

This more or less doubles the number of BSSes we can received from scan
results.
2009-02-05 12:00:23 +02:00
Jouni Malinen
3a4606585c Implement set_probe_req_ie() for nl80211 drivers 2009-01-20 14:06:02 +02:00
Jouni Malinen
7e5ba1b916 Mark functions static if not used elsewhere and use proper prototypes 2009-01-03 20:38:42 +02:00
Luis R. Rodriguez
6d1584905c wpa_supplicant: Add support for setting of a regulatory domain
This adds support for setting of a regulatory domain to wpa_supplicant
drivers. It also adds regulatory domain setting for the nl80211 driver.
We expect an ISO / IEC 3166 alpha2 in the wpa configuration file as a
global.
2008-12-09 22:11:14 +02:00
Jouni Malinen
7e45830ab7 nl80211: Include copy of linux/nl80211.h with hostapd/wpa_supplicant
This makes it easier to build the packages and allows all new features
to be built into the binary regardless of which kernel is currently
used.
2008-12-08 11:04:13 +02:00
Jouni Malinen
8e8df25541 nl80211: Finish dumps properly (ported from iw.git) 2008-10-29 19:28:35 +02:00
Jouni Malinen
6241fcb165 nl80211: clean up netlink code
This is a port of commit cafe38cae0
from Johannes Berg <johannes@sipsolutions.net> for hostapd to
wpa_supplicant driver_nl80211.c.
2008-09-30 16:46:22 +03:00
Dan Williams
ec5f180a24 Add an optional set_mode() driver_ops handler for setting mode before keys
A bug just got reported as a result of this for mac80211 drivers.

https://bugzilla.redhat.com/show_bug.cgi?id=459399

The basic problem is that since taking the device down clears the keys
from the driver on many mac80211-based cards, and since the mode gets
set _after_ the keys have been set in the driver, the keys get cleared
on a mode switch and the resulting association is wrong.  The report is
about ad-hoc mode specifically, but this could happen when switching
from adhoc back to managed mode.
2008-09-29 16:45:49 +03:00
Jouni Malinen
fd630bc183 Fixed WEXT scan result parser to not crash on invalid IEs (zero len buffer)
If IWEVGENIE or custom event wpa_ie/rsn_ie is received in scan with empty
buffer, the previous version ended up calling realloc(NULL, 0) which seems
to return a non-NULL value in some cases. When this return value is passed
again into realloc with realloc(ptr, 0), the returned value could be NULL.
If the ptr is then freed (os_free(data.ie) in SIOCGIWAP handling), glibc
may crash due to invalid pointer being freed (or double-freed?). The
non-NULL realloc(NULL, 0) return value from glibc looks a bit odd behavior,
but anyway, better avoid this case completely and just skip the IE events
that have an empty buffer.

This issue should not show up with drivers that produce proper scan results
since the IEs will always include the two-octet header. However, it seems
to be possible to see this when using 64-bit kernel and 32-bit userspace
with incorrect compat-ioctl processing.
2008-08-27 09:52:16 +03:00
Jouni Malinen
3c83f19c80 Added mlme_{add,remove}_sta() for userspace MLME
These functions are based on the hostapd implementation and complete
the userspace MLME code in wpa_supplicant (though, mac80211 will still need
couple of pending patches to be integrated in order to get userspace client
MLME working again).
2008-08-18 22:01:04 +03:00
Jouni Malinen
1c8735848d nl80211: Preliminary code for usermode MLME support
This adds some parts needed to use usermode MLME with the current mac80211
(plus a patch to add a new cfg80211 command; not yet submitted to
wireless-testing). This version creates a monitor interface for management
frames and is able to send Probe Request frames during scan. However, it
looks like management frame reception is not yet working properly. In
addition, mlme_{add,remove}_sta() handlers are still missing.
2008-08-15 22:14:49 +03:00
Jouni Malinen
7524cfb1a3 nl80211: Fixed re-initialization of removed and re-inserted interface
Network device ifindex will change when the interface is re-inserted.
driver_nl80211.c will need to accept netlink events from "unknown" (based
on ifindex) interfaces when a previously used card was removed earlier. If
the previously removed interface is added back, the driver_wext data need
to be updated to match with the new ifindex value. In addition, the initial
setup tasks for the card (set interface up, update ifindex, set mode, etc.)
from wpa_driver_nl80211_init() need to be run again.

This is the changes from commit 3fbda8f943
(driver_wext.c) ported for driver_nl80211.c.
2008-08-15 17:55:16 +03:00
Jouni Malinen
0a4e6cbf88 nl80211: Fixed set_mode() to actually use adhoc/station nl80211 variables 2008-08-15 17:52:37 +03:00
Dan Williams
93ef879f0f wext: fix maxrate calculation
When scan results got moved from wpa_scan_result -> wpa_scan_res, the
'maxrate' member was dropped from wpa_scan_res.  The D-Bus interface
used 'maxrate', which was replaced with wpa_scan_get_max_rate().
Unfortunately, wpa_scan_get_max_rate() returns 802.11 rate values
directly from the IE, where 'maxrate' was the rate in bits/second.  The
supplicant internally fakes an IE for wpa_scan_res from the value of
wpa_scan_result->maxrate, but interprets ->maxrate as an 802.11 rate
index.

As a side-effect, this fixes a soft-break of the D-Bus control API since
the wpa_scan_res change was introduced.
2008-07-15 20:07:50 +03:00
Jouni Malinen
3f5285e852 Added a preliminary nl80211/cfg80211 driver interface for wpa_supplicant
driver_nl80211.c is based on driver_wext.c and it is still using Linux
wireless extensions for many functions. Over time, the new driver interface
code should be modified to use nl80211/cfg80211 for everything.
2008-06-06 16:55:42 +03:00