This extends ap_wps_pbc_timeout to cover another long WPS timeout:
ER-initiated SetSelectedRegistrar timeout on AP. Using the same test
case for this avoids the need for another 120 second test case.
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like NID_X9_62_prime192v1 is not available, so allow that group
to fail without failing the full ap_wpa2_eap_pwd_groups test case.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It looks like NID_X9_62_prime192v1 is not available, so allow that group
to fail without failing the full sae_groups test case.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
These test cases added a new radio for the non-FST AP and while they
removed the radio itself, they did not remove the hostapd instance for
that radio. Remove that to avoid leaving behind invalid instances.
Signed-off-by: Jouni Malinen <j@w1.fi>
This verifies wpa_supplicant behavior in number of cases where the
external program opening a control interface socket does not behave
properly.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
ap_open_sta_enable_disable verifies that DISABLE_NETWORK that is issued
while connect/sme-connect radio work is pending is effective, i.e.,
prevents connection to disabled network.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The number of channels was not properly passed from the
run-all.sh script to the start.sh script. Fix it.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Add tests verifying a Coordination Protocol Transport exchange and
selection during P2PS provision discovery.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reuse p2ps_provision() and p2ps_connect_pd() methods, and
remove the previous PD helper functions which are no longer used.
This fixes the previously "broken"
p2ps_connect_keypad_method_nonautoaccept and
p2ps_connect_display_method_nonautoaccept.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Re-factor p2ps_connect_p2ps_method() so it reuses generic P2PS provision
and connection flows.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When MCC is enabled, the remain of channel scheduling might
incur additional delays, so increase the timeouts to be able
to receive delays frames.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Set peer_group_removed only if peer_group_added has already been set.
This fixes an issue where a propertiesChanged event triggered by an
earlier test case was able to get dbus_p2p_group_termination_by_go
terminated too early. This happened, e.g., with sequence
"dbus_p2p_two_groups dbus_p2p_group_termination_by_go".
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Only run peerJoined() steps once to avoid trying to use GetAll() on an
already removed group and double-removal of a group. This did not make
the test case fail, but the exception is printed out in pretty confusing
way to stdout, so better get rid of it.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Remove the duplicated -ddKt command line argument to avoid setting
hostapd debug level to EXCESSIVE.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
On recent kernels, it seems that something changed (scheduler?)
that makes hwsim send the scan done event so quickly that iw isn't
scheduled back in to listen for it, causing iw to get stuck.
Work around this by using the scan trigger command (it'll be quick
enough so that we don't really need to wait) and the scan trigger
and dump commands where the results are required (and use a small
sleep there instead of waiting for the scan results.)
I'll try to fix this separately in iw later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This verifies P2P extended listen timing operations by confirming that a
peer is not discoverable during the provisioning step and that the peer
becomes discoverable after having removed the group during such
provisioning step. The latter case was broken until the 'P2P: Cancel
group formation when deleting a group during group formation' commit.
Signed-off-by: Jouni Malinen <j@w1.fi>
Verify that Groups list for a P2P Peer gets updated properly on group
addition and removal (three different paths).
Signed-off-by: Jouni Malinen <j@w1.fi>
omac1_aes_128() implementation within crypto_openssl.c is used in this
case and that cannot fail the memory allocation similarly to the
non-FIPS case and aes-omac1.c.
Signed-off-by: Jouni Malinen <j@w1.fi>
OpenSSL rejects the cipher string 'EXPORT' in FIPS mode in a way that
results in the locally generated error showing up before the EAP method
has been accepted.
Signed-off-by: Jouni Malinen <j@w1.fi>
In addition, replace some of the CHAP cases with PAP since that enables
more coverage without breaking the main test focus.
Signed-off-by: Jouni Malinen <j@w1.fi>
The PKCS12 file with default openssl options cannot be used with OpenSSL
1.0.1 in FIPS mode. Replace this with -descert version as a workaround.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes it easier to build wpa_supplicant for OpenSSL FIPS mode
testing. wpa_supplicant/.config needs following type of configuration
for this:
CONFIG_FIPS=y
CFLAGS += -I/usr/local/ssl/include
LIBS += -L/usr/local/ssl/lib
CC=/usr/local/ssl/fips-2.0/bin/fipsld
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows driver-based preference list to override default operating
channel selection mechanism by using a non-social P2P find if needed.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Previously, this was assumed to be the case due to default channel
selection behavior. However, that may not be the case with driver-based
preference list processing. Enforce a social channel to be used as the
operating channel here since dev[2] uses social channel only device
discovery and needs to find the GO.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The openssl_ciphers="EXPORT" case may result in locally generated
disconnection event if the OpenSSL version used in the build rejects
export ciphers in default configuration (which is what OpenSSL 1.1.0
will likely do). Don't report a test case failure in such a case.
Signed-off-by: Jouni Malinen <j@w1.fi>
Add adv_cpt and seeker_cpt parameters to p2ps_provision() function.
The seeker_cpt is used in P2P_ASP_PROVISION command by a seeker, the
adv_cpt parameter is in P2P_ASP_PROVISION_RESP by an advertiser.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add an optional parameter to p2ps_advertise() function allowing to
specify CPT priority values.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add an optional CPT parameter to asp_provision() method of
WpaSupplicant.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add p2ps_connect_pd() helper method which strictly validates the PD
results and establishes the connection between peers accordingly.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add generic provision method. This method receives a seeker and an
advertiser devices, advertisement id, method, and a flag which indicates
whether deferred flow is expected. The method returns P2PS-PROV-DONE
events and the pin (if keypad or display method is used).
This method is needed to simplify the P2PS provision flows in the tests.
This method complies to the P2PS specification regarding the expected
order of the show and display PIN events.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Add asp_provision method which issues either P2PS PD Request or, if the
status is provided, continues the deferred flow by sending follow on
PD Request.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
This test case could fail if there were old BSS entries remaining in
cfg80211 scan results. That happened, e.g., when running test cases in
the following sequence: "discovery_social_plus_one discovery_auto".
Signed-off-by: Jouni Malinen <j@w1.fi>
This removes quite a bit of duplicated code. In addition, this starts
using different FST group names to get additional coverage.
Signed-off-by: Jouni Malinen <j@w1.fi>
Without this, the run-tests.py socket could have been left in attached
to receive all hostapd global events during a test case. This could hit
the limit of pending messages on the socket since there is nothing
clearing this socket during the execution of a test case. Fix this by
explicitly closing the socket after having completed the RELOG command.
Signed-off-by: Jouni Malinen <j@w1.fi>
This verifies FST group dialog_token wrap-around and behavior with large
number of session setups and teardowns.
Signed-off-by: Jouni Malinen <j@w1.fi>
This adds a test case that goes through session initialization through
separate commands that can be modified more easily for special case. The
first such special case is using special FST Setup Request frames with
non-standard MBIE contents to hit different code paths for finding the
interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
Pass absolute path to the daemonized wpa_cli process and add read
privileges for everyone on the action script to make this test case work
better when run without a VM.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Try to use the special build for --codecov purposes, if present, instead
of hardcoding the hostapd/wpa_supplicant binary to the default location.
This is needed to collect code coverage correctly.
Signed-off-by: Jouni Malinen <j@w1.fi>
Commit 53606b105c ('tests: Wait for scan
to complete on all interfaces in reset()') added option of passing
ifname to get_driver_status(). This could result in FAIL-NO-IFNAME-MATCH
returns that get printed out in "Ignore unexpected status-driver line"
messages if the interface is not found. Check for this case to avoid
that unnecessary print.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Remove unused variables and replace split(" ") with just split().
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
When WpaSupplicant executes reset() it waits until all the ongoing scans
are completed. However, it checks the status of the wlanX interface
only. If a dedicated P2P device interface is used, scan may be still
running on the P2P Device interface, e.g., due to P2P_FIND. This might
affect subsequent tests.
Fix this by waiting until the scan is done both on wlanX and P2P
Device interfaces.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
This allows hostapd and wpa_supplicant to be built for hwsim test cases
with ubsan functinality from the recent gcc/clang compiler versions.
Signed-off-by: Jouni Malinen <j@w1.fi>
This changes the sae_groups test case design to try with every group and
skip triggering test failure for the heavier ones that are likely to
fail in some VM setups under load. This provides more testing coverage
by not limiting the test based on lowest common setup.
Signed-off-by: Jouni Malinen <j@w1.fi>
This verifies a case where the neighboring BSS is at the other end of
the band and has its PRI channel further away.
Signed-off-by: Jouni Malinen <j@w1.fi>
Flush the cfg80211 scan cache explicitly to avoid false failure reports
if a BSS entry from an earlier test case remain. Such a failure could be
hit, e.g., with the following test case sequence:
wpas_mesh_mode_scan p2p_channel_random_social dbus_old_wps_pbc
Signed-off-by: Jouni Malinen <j@w1.fi>
It looks like the previous timeout of 0.1 seconds could be hit under
parallel VM load, so double this to 0.2 second to avoid hitting
unnecessary test failures.
Signed-off-by: Jouni Malinen <j@w1.fi>
Get the P2P group interface name so it will be used for group removal to
support configurations that use a dedicated P2P Device interface.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Wait on the group control interface to support configurations that
use a dedicated P2P Device interface.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Use the global control interface to list the P2P Device persistent
networks. Get and parse the P2P-GROUP-STARTED events, so later the
interface names would be available for the connectivity test etc. Both
of these are required when a dedicated P2P Device interface is used.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Wait on the global control interface to support
configurations that use a dedicated P2P Device interface.
Note that the group interface cannot be used, as the group
interface name is not saved since no group was created.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Change the reset() method to use the global control interface
for resetting P2P state and also add a call to P2P_FLUSH.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
This adds test coverage to p2p_procesS_nfc_connection_handover() error
paths. This is also a regression test case for a memory leak on two of
these error paths.
Signed-off-by: Jouni Malinen <j@w1.fi>
This is a regression test case for a memory leak on a TLS PRF error
path. In addition, this provides more coverage for this error path.
Signed-off-by: Jouni Malinen <j@w1.fi>
The test sequence "scan_and_bss_entry_removed ap_wps_ap_scan_2" resulted
in failure due to an old BSS entry remaining from the first test case to
the second and the WPS_PBC operation on a forced BSSID ending up picking
the incorrect BSS entry. Make this more robust by clearing the scan
results from cfg80211.
Signed-off-by: Jouni Malinen <j@w1.fi>
Both of these test cases were leaving out BSS entries with active PBC
mode at the end of the test. This could result in the next text case
failing, e.g., in "ap_wps_pbc_overlap_2ap grpform_ext_listen" and
"ap_wps_pbc_overlap_2sta grpform_ext_listen" sequences. Fix this by
flushing the scan results more carefully at the end of the PBC overlap
test cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
Verify that advertiser returns 'org.wi-fi.wfds' wildcard in a Probe
Response frame if at least one P2PS advertisement is present.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
This increases testing coverage for VENDOR_ELEM mechanism by explicitly
verifying that the requested element gets added to each of the supported
frame types.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Test P2PS GO and CLI discoverability on group operating channel.
In order to implement these tests, refactor p2ps_connect_p2ps_method
and test_p2ps_connect_adv_go_pin_method to reuse the code for
connection establishment. Also change p2ps_exact_seek so it will
allow getting Probe Response frames from several peers.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
test_p2ps_connect_adv_go_pin_method() expects that
p2ps_provision_keypad_method() returns P2PS-PROV-DONE with details
needed for a connection. However, this event was overridden which
resulted in an incorrect test flow skipping the connection
establishement. The test would pass, however, without really trying to
connect. Fix this by returning the correct event.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
This adds hwsim test ap_vlan_iface_cleanup_multibss. It connects two
stations in different BSS but the same hostapd process. First both
stations are in VLAN 1, then they get reauthenticated into VLAN 2. Due
to the ordering of the stations moving around, this test checks that
bridge and tagged interface referencing counting is done globally, such
that the tagged interface is not removed too early and no bridge is
left over.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
There seem to be cases where flush_scan_cache() was unable to clear all
BSS entries due to a hidden SSID BSS (SSID length 0) showing up again
from cfg80211 BSS table. Check for this and run the flush operation
again if any entries remain.
This fixes an issue where the following hwsim test case sequence
resulted in the last test case failing due to the old BSS entry from the
first test case being in place and showing unexpected flags information:
ap_hs20_min_bandwidth_home_hidden_ssid_in_scan_res
ap_hs20_remediation_required
ap_mixed_security
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
These are regression test cases for a segmentation fault issue (use of
freed memory) where interface removal happened while a gas-query item
was pending.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The standard hardcodes the MU Beamformee Capable subfield is hardcoded
to 0 when transmitting by an AP, so there is no need to provide a
configuration parameter for setting this to one.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The dev[1] <--> dev[2] data connectivity test was using incorrect
function. dev[2] is also using a P2P group and as such, can have a
different group interface.
Signed-off-by: Jouni Malinen <j@w1.fi>
Group interface name was fetched from the results of an incorrect group
formation and because of this, group removal failed in case P2P Device
is used and dev[1] ends up getting different group ifname for the
groups.
Signed-off-by: Jouni Malinen <j@w1.fi>
The network operations need to use the global control interface to be
performed on the interface that stores the network profiles for
persistent groups.
Signed-off-by: Jouni Malinen <j@w1.fi>
After P2P-GROUP-STARTED event, use group_form_result in order to update
the group_ifname for the device. This is needed when using P2P Device
for managing P2P operations which results in a separate group interface
being used.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
In case that there is a need to list the persistent P2P networks,
the global control interface needs to be used.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
list_networks() always used the wlanX control interface to query for the
current list of networks. However, when a dedicated P2P Device is used,
the global control interface should be used when checking persistent
group network profiles.
Fix this by adding an optional parameter indicating that the P2P
networks are requested, and in such a case use the global control
interface.
In addition update test_p2p_persistent to use the argument when needed.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
This is required for cases that a dedicated P2P Device interface
is used and then the event will happen on the global interface.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
Send request to set persistent_reconnect on the global control
interface so it would also work when using a dedicated P2P Device
interface.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
When testing P2P invitation flow, setting the NFC selector
should be done using the global control interface.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
Some tests in test_p2ps.py test a scenario where a separate P2P
group interface is not used. However, this is not a valid case
when a dedicated P2P Device interface is used, as in such a case
a separate group interface must be used.
Handle this by skipping such tests in case a dedicated P2P Device is
used.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Call group_form_result() whenever a new group is started, so that
group_ifname gets updated and later, the group can be removed when
needed.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
When resetting a device, remove all the P2P networks to prevent
unexpected behavior in following tests. This is needed for the case
where P2P Device interface is used.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
This is required for cases where P2P Device is used and the event
happens on the global interface.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
This is required for cases that multiple interfaces are used and the
event can happen on any of them, for example when a dedicated P2P Device
interface is used.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
The tests used p2p_dev_addr that can be different from own_addr,
if a dedicated P2P Device interface is used.
Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
This increases the coverage for AP mode management frame fuzzing by
allowing number of additional Action frame code paths to be executed.
Signed-off-by: Jouni Malinen <j@w1.fi>
Couple of the EAP-SIM/AKA protocol test cases were leaving out the
Reserved field. This was not intentional since these test cases were
targeting a specific Subtype processing instead of verifying truncated
header case (which is covered separately). Add the Reserved field to
allow the implementation to add an explicit, earlier check for this.
Signed-off-by: Jouni Malinen <j@w1.fi>
Number of the P2P test cases through D-Bus commands were not prepared
for there being a separate group interface when the P2P Device concept
is used.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Enhance test ap_vlan_wpa2_radius_id_change to change the VLAN-ID
back as a last step. This ensures that the wpa_group for VLAN-ID 1
did not enter FATAL_FAILURE state during the test.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
In addition, this adds some delay between the authentication and data
connectivity test through the newly added VLAN and by doing so, makes
ap_vlan_wpa2_radius_id_change a bit more robust. It was possible for the
EAPOL-Key message 4/4 not having yet been processed by hostapd at the
time the data test started.
Signed-off-by: Jouni Malinen <j@w1.fi>
By analysing objdump output some read only structures were found in
.data section. To help compiler further optimize code declare these
as const.
Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
dynamic_vlan=required also applies to macaddr_acl=2 (RADIUS), especially
when used with WPA-PSK.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
The time before trying to associate with an AP that does not advertise
Selected Registrar TRUE is going to be incremented, so increase the
autogo_m2d timeout to avoid reporting incorrect errors due to missing
M2D events.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This program can be used to run fuzzing tests for areas related to WNM
frame parsing and processing on the client side.
Signed-off-by: Jouni Malinen <j@w1.fi>
This program can be used to run fuzzing tests for areas related to EAPOL
frame parsing and processing on the supplicant side.
Signed-off-by: Jouni Malinen <j@w1.fi>
This program can be used to run fuzzing tests for areas related to P2P
message parsing and processing. p2p-fuzzer allows data files to be used
to inject Probe Response and Action frames for processing by the P2P
module.
Signed-off-by: Jouni Malinen <j@w1.fi>
This change add two new tests to verify hostapd operation when used with
VLANs. Both are based on pmksa_cache_preauth and enable dynamic VLANs,
pmksa_cache_preauth_vlan_used additionally uses a station with VID 1.
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
It looks like it was possible to receive an incomplete FAIL line and
break out from test execution due to a parsing error. Handle this more
robustly and log the error.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Now that there is a kernel patch for IPv6 ProxyARP that is capable of
using the non-AP STAs MAC address as the link layer source address in
NA, validate that behavior rather than the temporary check for BSSID.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
The 'params' argument was not used at all. Use it as an alternative
means for setting the list of test cases to execute.
Signed-off-by: Jouni Malinen <j@w1.fi>
Explicitly clear cached scan results on the AP interface before starting
ACS. This avoids issues where conflicting BSS entries from previously
executed test cases could affect channel selection.
Signed-off-by: Jouni Malinen <j@w1.fi>
This can be used to filter out test cases that take significantly longer
time to execute (15 seconds or longer). While this reduces testing
coverage, this can be useful to get a pretty quick coverage in
significantly faster time.
Signed-off-by: Jouni Malinen <j@w1.fi>
It's somewhat annoying that you can only run parallel-vm.py as
./parallel-vm.py, not from elsewhere by giving the full path,
so fix that by resolving the paths correctly in the scripts where
needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Instead of hand-writing a (positional) parser, use the argparse module.
This also gets us nice help output.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
