Commit graph

8416 commits

Author SHA1 Message Date
Jouni Malinen
5dbbf36916 Interworking: Remove unnecessary dead increment
build_root_nai() will not be extended to write something after the
domain, so there is no need to update the pos pointer after the final
os_snprintf() call in the function. Remove this to make a static
analyzer happier.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
a1e46f320d Check for no key_mgmt/proto/auth_alg entries in config writer
This is not really necessary check, but it keeps a static analyzer
happier by avoiding dead increment. Doing it this way rather than
removing the increment is less likely to cause problems when new entries
are added here in the future (the "dead" increment would be very much
needed in those cases).

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
290ea6a76e Remove unnecessary tracking of first entry
The pointer to the current position is enough to figure out whether the
proto string is the first one in the buffer. Removing the separate
tracking variable cleans up a static analyzer warning on dead
assignment.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
d3fa2bbb02 WFD: Explicit limit for subelement length (CID 68127)
This adds an explicit limit for the maximum Wi-Fi Display subelement
length for ASCII hexdump. This would not really be needed since the
buffer is already limited by maximum frame length. Anyway, since this
can make static analyzers happier and the subelement used with this
function is short, we may as well include an explicit check.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
745ef18478 HS 2.0: Verify assoc_req_ie buffer size for indication elements
While the buffer is expected to be large enough for all the IEs, it is
better to check for this explicitly when adding the HS 2.0 Indication
element. (CID 68601)

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
0233dcac5b SAE: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
34ef46ce54 WEP shared key: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
3e4b77c9bd EAP-GTC: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
a6eae3f7a1 EAP-MSCHAPv2: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:48 +03:00
Jouni Malinen
30411b351c EAP-TTLS: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
a564d9ca36 EAP-MD5: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
4685482552 EAP-PSK: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
cba0f8698b EAP-PEAP: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
7b1e745870 EAP-LEAP: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
8f92826b15 EAP-GPSK: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
e1550d4be8 EAP-PAX: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
c434503f5e EAP-FAST: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
dddf7bbd4e EAP-EKE: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
dfb5608139 EAP-SAKE: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
05c79d6acd EAP-SIM/AKA: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
675ddad1c2 EAP-IKEv2: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
2049a3c874 TLS: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
a79aea531e Milenage: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
05f916eeed AES-GCM: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
87a5c93bec AES-CCM: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
7c24f53c88 EAPOL supplicant: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
870834a19b RSN authenticator: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
0d15b69f0a RSN supplicant: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
72619ce61b MACsec: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
c2371953f8 RADIUS: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
ce9c9bcc38 WPS: Use os_memcmp_const() for hash/password comparisons
This makes the implementation less likely to provide useful timing
information to potential attackers from comparisons of information
received from a remote device and private material known only by the
authorized devices.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
afc3c8b07f Add constant time memory comparison function os_memcmp_const
This function is meant for comparing passwords or hash values where
difference in execution time could provide external observer information
about the location of the difference in the memory buffers. The return
value does not behave like os_memcmp(), i.e., os_memcmp_const() cannot
be used to sort items into a defined order. Unlike os_memcmp(),
execution time of os_memcmp_const() does not depend on the contents of
the compared memory buffers, but only on the total compared length.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
ee352f1e5a EAP-pwd: Add explicit total length limit
Instead of using implicit limit based on 16-bit unsigned integer having
a maximum value of 65535, limit the maximum length of a fragmented
EAP-pwd message explicitly to 15000 bytes. None of the supported groups
use longer messages, so it is fine to reject any longer message without
even trying to reassemble it. This will hopefully also help in reducing
false warnings from static analyzers (CID 68124).

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
b2b8a4cb10 EAP-SIM/AKA: Pass EAP type as argument to eap_sim_msg_finish()
This makes it easier for static analyzers to figure out which code paths
are possible within eap_sim_msg_finish() for EAP-SIM. This will
hopefully avoid some false warnings (CID 68110, CID 68113, CID 68114).

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:47 +03:00
Jouni Malinen
f107d00cf6 PeerKey: Clean up EAPOL-Key Key Data processing
This extends the earlier commit e6270129f6
('Clean up EAPOL-Key Key Data processing') design to be used with
PeerKey EAPOL-key processing as well. This avoids false warnings from
static analyzer (CID 62860, CID 62861, CID 62862).

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-07-02 12:38:46 +03:00
Jouni Malinen
010fc5f507 dbus: Clean up array-array-type property getter
The previously used design was a bit too complex for static analyzers
(e.g., CID 68131, CID 68133) to understand which resulted in false
warnings about uninitialized memory. Avoid this by explicitly
initializing the pointer array to NULL and also skipping any invalid
NULL entry in the helper function.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-29 18:20:13 +03:00
Tomasz Bursztyka
ea18024d78 dbus: Add PropertiesChanged signal to Peer object
This signal will be thrown when a Peer joins or leaves a group.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 17:28:14 +03:00
Tomasz Bursztyka
36716eef89 P2P: Add a utility function to run a method on every known peer
This will be useful in wpa_supplicant part to signal if a peer got its
group changed.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 17:27:27 +03:00
Tomasz Bursztyka
bf035663c9 dbus: Remove GroupMember object type and use Peer instead
GroupMember is unusable in itself and all the necessary informations are
stored in Peer objects, thus replace the use of GroupMember by Peer.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 17:19:12 +03:00
Tomasz Bursztyka
17a37d7110 dbus: Add a Groups property to a Peer object on which it belongs
If only the Peer is part of one or more group, this property will tell
those via listing their object paths.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 17:09:32 +03:00
Tomasz Bursztyka
6f04642fe3 P2P: Add utility functions to get GO/client interface
This will be useful for a peer to know if it is part of a group either
as a client of our local GO or as the peer GO.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 17:00:55 +03:00
Tomasz Bursztyka
c6386e5c71 P2P Add a utility to run a callback on all available groups
This will be useful in wpa_supplicant to match group's SSIDs against a
specific one.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 16:56:57 +03:00
Tomasz Bursztyka
8e76f48abd P2P: Add a utility function to get the group configuration
This will be useful for finding the interface related to this group
after formation based on the group SSID.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2014-06-29 16:52:06 +03:00
Jouni Malinen
37d8a27401 TDLS: Clean up add/set peer operations
Use a helper function to avoid multiple copies of the same long list of
argument parameters to wpa_sm_tdls_peer_addset() from the peer entry.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-06-29 13:44:15 +03:00
Arik Nemtsov
bcd2baa0fa TDLS: Tear down connection on malformed Setup Confirm
Otherwise the peer will erroneously assume we have a working direct
link.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
2014-06-29 13:44:14 +03:00
Arik Nemtsov
81905409b5 TDLS: Abort local setup when failing to add STA
The driver might not always be able to add the new station. Abort the
setup when this happens.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
2014-06-29 13:44:14 +03:00
Arik Nemtsov
1dce7a216f TDLS: Update peer STA as soon as full peer info is available
Update the peer STA with full info sending TDLS Setup Response/Confirm
frames instead of after the full setup exchange. This makes it easier
for some drivers to properly negotiate QoS and HT information on the
direct link.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
2014-06-29 13:44:14 +03:00
Arik Nemtsov
819c943a3b TDLS: Remove peer from global peer-list on free
There is no need to keep the peer entry in memory after the link has
been removed.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Tested-by: Ilan Peer <ilan.peer@intel.com>
2014-06-29 13:44:14 +03:00
Michal Kazior
5841958f26 hostapd: Use channel switch fallback on error
It's worth giving a try to fallback to re-starting BSSes at least once
hoping it works out instead of just leaving BSSes disabled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
2014-06-28 11:13:11 +03:00
Michal Kazior
8974620e3e hostapd: Perform multi-BSS CSA for DFS properly
Currently hostapd data structures aren't ready for multi-channel BSSes,
so make DFS work now at least with single-channel multi-BSS channel
switching.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
2014-06-28 11:08:16 +03:00