Apparently the intention was for the dependent module's name to appear
in the variable name resulting from using IWD_MODULE_DEPENDS, so the
dependencies all have unique names (apparently not critical).
Despite that PEAPv0 spec indicates that TLS tunnel needs to be torn
down after the transmission of a secure Result response, some servers
treat this TLS close alert as a failure. This patch changes the above
behavior to explicitly torn the tunnel only in the case of
authentication failure and leave it open after the success.
The previous refactoring somehow changed the 'Settings' section name
into 'General'
Fixes: ac53239109 ("doc: Split network configuration description into separate manpage")
This module takes care of radio measurements which an AP can request.
There are many types of requests, and for now only beacon requests
are supported.
IWD will filter certain types of beacon requests that are NOT
supported:
- AP channel reports. Only single channel requests will be supported
- Autonomous measurements. Only direct requests will be supported.
IWD will not accept requets to trigger reports under certain
conditions (SNR/RSSI thresholds, etc.)
- Timed measurements. Only immediate measurements will be performed.
The accuracy for timed measurements cannot be reliably guaranteed
due to kernel scheduling/queues.
- Full reporting detail. The AP can request the STA return the full
set of IEs in a beacon. IWD does not currently save all IEs, plus
there is quite a bit of complexity involved as certain IEs get
truncated, and there are other length limitations.
There are other limitations not specific to beacon requests:
- IWD will support single measurement requests per report. Multiple
measurement request IEs can be included, but the reports will be
sent out separately.
- IWD will limit the number of requests it responds to in a given
amount of time. As it stands now this is hard coded to 2 requests
per second maximum. This will prevent DoS attacks.
- IWD will not accept any measurement requests from APs it is not
connected to, and will not accept any requests until connected.
For Radio Resource Management (RRM) we will need access to the currently
connected BSS as well as the last scan results in order to do certain
kinds of requested measurements.
netdev_connect can achieve the same effect as netdev_connect_wsc but is
more flexible as it allows us to supply additional association IEs. We
will need this capability to make P2P connections. This way we're also
moving the WSC-specific bits to wsc.c from the crowded netdev.c.
On EAP events, call the handshake_event handler with the new event type
HANDSHAKE_EVENT_EAP_NOTIFY isntead of the eapol_event callback.
This allows the handler to be set before calling
netdev_connect/netdev_connect_wsc. It's also in theory more type-safe
because we don't need the cast in netdev_connect_wsc anymore.
Convert the handshake event callback type to use variable argument
list to allow for more flexibility in event-specific arguments
passed to the callbacks.
Note the uint16_t reason code is promoted to an int when using variable
arguments so va_arg(args, int) has to be used.
no_cck_rates is set in the scan parameters generally to make sure
that the Probe Request frames are not sent at any of the 802.11b
rates during active scans. With this patch we also omit those rates
from the Supported Rates IEs, which is required by the p2p spec and
also matches our flag's name.
The current logic did not make sure that each entry provided was
actually parsed. Also add a sanity check to make sure that no duplicate
parsing occurs.
When updating the network ranking there was a potential out of bounds
array access. The condition was if known_network_offset returned a
negative value, indicating the known network was not found. Since
network->info is only set for known networks this should not ever
happen as network->info is checked prior.
Though this is likely impossible, knownnetworks is complex enough that
its better to just be paranoid and put an L_WARN_ON to check the
return.
Since the property Autoconnect was renamed to AutoConnect, change the
Autoconnect setting to match.
For now we still allow the legacy name to be used here, but a warning is
printed to remind users to update.
Relax the pre-check for local user certificate. Before we used to check
that the CA provided (if any) was used to verify both the peer identity
and the local certificate chain. However, there seem to be networks
that use different CAs to sign AP/Radius certificates and certificates
issued to users.
Drop the ca_certs argument from l_certchain_verify, but keep the call
there to make sure the certificate chain is indeed a chain as a sanity
check.
The commit/confirm processing was incorrectly subtracting 2 from
the length when they should be subtracting 6. As with the other
similar change, the length is validated with mpdu_validate so
subtracting 6 will not cause an overflow.
This function was returning a boolean and the expected return was
a signed integer. Since this function actually returned false in
all cases the check for a success (0) return always worked.
The comment about the 'standard code path' was removed as this is
no longer valid.
If an authentication frame of length <= 5 is sent sae will overflow an
integer. The original cause of this was due to incorrectly using the
sizeof(struct mmpdu_header). The header can be either 24 or 28 bytes
depending on fc.order. sizeof does not account for this so 28 is always
the calculated length.
This, in addition to hostapd not including a group number when rejecting,
cause this erroneous length calculation to be worked around as seen in
the removed comment. The comment is still valid (and described again
in another location) but the actual check for len == 4 is not correct.
To fix this we now rely on mpdu_validate to check that the authentication
frame is valid, and then subtract the actual header length using
mmpdu_header_len rather than sizeof. Doing this lets us also remove the
length check since it was validated previously.
A recent change checked the return value of ie_parse_rsne_from_data
inside the ptk 1/4 handler. This seemed safe, but actually caused
the eapol unit test to fail.
The reason was because eapol was parsing the IEs assuming they were
an RSN, when they could be a WPA IE (WPA1 not WPA2). The WPA case
does not end up using the rsn_info at all, so having rsn_info
uninitialized did not pose a problem. After adding the return value
check it was found this fails every time for WPA1.
Since the rsn_info is not needed for WPA1 we can only do the RSN
parse for WPA2 and leave rsn_info uninitialized.
The intent here was to validate that the frequency is a multiple of 5
and lies in a certain range. Somehow the channel was checked for being
a multiple of 5 instead.
The logic here intended to check whether all required attributes were
available. However, it set the parse_error to true instead of
have_required to false as intended.
Replace uses of strcpy by the safer l_strlcpy. Note that both of these
functions can only be called with a buffer of max 253 bytes (the
identity string), so this is purely a precautionary measure.
Technically there's no problem here as l_queue_remove does not
dereference the pointer. Still, it confuses certain static analysis
tools in the current form. Reordering this will not change the behavior
at all.
Andrew Zaborowski