Config file is written to a temp file and then it is renamed to the
original config file. However, it is possible that the rename operation
will be commited to storage while file data will be still in cache
causing original config file to be empty or partially written in case of
a system reboot without a clean shutdown. Make this less likely to occur
by forcing the data to be written to the storage device before renaming
the file.
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
It was possible for the Hotspot 2.0 case of OSU user interaction to fail
with wpadebug browser due to permission denial in the "start" command
("java.lang.SecurityException: Permission Denial: startActivity asks to
run as user -2 but is calling from user 0; this requires
android.permission.INTERACT_ACROSS_USERS_FULL"). Avoid this by using
more flexible USER_CURRENT_OR_SELF (-3) value with the --user argument.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This makes it possible to use these helper functions from hostapd as
well as the current use in wpa_supplicant.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Add an auxiliary cstr_token() function to get a token from a const char
string. The function usage syntax is similar to str_token(), but unlike
str_token() the function doesn't modify the buffer of the string. Change
str_token() function implementation to use cstr_token().
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>
It was possible for a registered eloop socket handler to be unregistered
and re-registered for a re-opened socket with the same fd from a timeout
or signal handler. If such a case happened with the old socket having a
pending event waiting for processing, some eloop combinations could end
up calling the new handler function with the new socket and get stuck
waiting for an event that has not yet happened on the new socket. This
happened with timeout and signal handlers with all eloop.c types. In
addition to that, the epoll case could also trigger this when a socket
handler re-registered a re-opened socket.
Fix these by checking whether there has been socket handler changes
during processing and break the processing round by going back to
select/poll/epoll for an updated result if any changes are done during
the eloop handler calls before processing the old socket results.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for the SIGINT/SIGTERM signal to be received while
processing a pending timeout/socket/signal event and then get stuck in
the following select() call before processing the signal event. If no
other events show up within the two second SIGALRM trigger, process will
be terminated forcefully even though there would have been possibility
to do clean termination assuming no operationg blocked for that two
second time.
Handle this more cleanly by checking for eloop.pending_terminate before
starting the select()/poll()/epoll_wait() wait for the following event.
Terminate the loop if pending signal handling requests termination.
In addition, make eloop_terminated() return 1 on eloop.pending_terminate
in addition to eloop.terminate since the process will be terminated
shortly and there is no point in starting additional processing.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This experimental support for Texas Instruments C compiler was never
fully completed and it has not really been used in close to ten years,
so drop this to simply the header files.
Signed-off-by: Jouni Malinen <j@w1.fi>
This helper function can be used to check whether a MAC address is a
multicast (including broadcast) address.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit implements hostapd global control interface notifications
infrastructure. hostapd global control interface clients issue
ATTACH/DETACH commands to register and deregister with hostapd
correspondingly - the same way as for any other hostapd/wpa_supplicant
control interface.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
64-bit builds with CONFIG_WPA_TRACE=y resulted in the wpabuf pointers
getting misaligned (only 32-bit aligned) and that would result in reads
and writes of unaligned size_t values. Avoid this by indicating explicit
alignment requirement for wpabuf_trace to 8 octets (i.e., there will be
extra four octets of padding in case of 64-bit builds).
Similarly, struct os_alloc_trace resulted in some potential misalignment
cases, e.g., when CONFIG_ACS=y uses a 'long double' variable within
struct hostapd_channel_data. Avoid misalignment issues with explicit
alignment indication.
Signed-off-by: Jouni Malinen <j@w1.fi>
src/utils/list.h ended up defining a local version of offsetof() due to
stddef.h not getting included. This resulted in unnecessary warnings
from ubsan related to "dereferencing" of a NULL pointer.
Signed-off-by: Jouni Malinen <j@w1.fi>
The new TEST_FAIL and GET_FAIL control interface commands can be used
similarly to the earlier TEST_ALLOC_FAIL/GET_ALLOC_FAIL design. The new
version is more generic framework allowing any function to be annotated
for failure testing with the TEST_FAIL() macro. This mechanism is only
available in builds with CONFIG_WPA_TRACE_BFD=y and
CONFIG_TESTING_OPTIONS=y. For other builds, the TEST_FAIL() macro is
defined to return 0 to allow the compiler to remove the test code from
normal production builds.
As the first test site, allow os_get_random() to be marked for failing
based on call backtrace.
Signed-off-by: Jouni Malinen <j@w1.fi>
When hostapd or wpa_supplicant is run in debug more with key material
prints allowed (-K on the command line), it is possible for passwords
and keying material to show up in debug prints. Since some of the debug
cases end up allocating a temporary buffer from the heap for processing
purposes, a copy of such password may remain in heap. Clear these
temporary buffers explicitly to avoid causing issues for hwsim test
cases that verify contents of memory against unexpected keys.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Instead of an int variable with magic values 0, 1, 2, use an enum that
gives clearer meaning to the values now that the original boolean type
global argument is not really a boolean anymore.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This modifies couple of code segments that replaced control characters
in strings with '_' to use a common helper function.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
It was possible for bitfield_get_first_zero() to read one octet beyond
the allocated bit buffer in case the first zero bit was not within
size-1 first octets.
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes it somewhat easier to use CONFIG_WPA_TRACE=y build with
external programs that might not be aware of the initialization
requirement, e.g., when linking wpa_ctrl.c with a program that does not
use the os_*() wrappers.
Signed-off-by: Jouni Malinen <j@w1.fi>
These were not supposed to include a newline at the end of the message
text since such formatting gets handled by tls_show_errors(). In
addition, change the message about the issuer's issuer to be more
accurate.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
If addition of a peer issuer certificate fails, the certs pointer would
be NULL when being passed to sk_X509_push() for peer issuer's issuer.
Fix this by skipping addition of issuer's issue if issuer addition
fails.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This define had been forgotten at some point in time and wpa_supplicant
compilation for Windows failed with some recently added code that
depended on this.
Signed-off-by: Jouni Malinen <j@w1.fi>
Addition of os_memcmp_const() in commit
afc3c8b07f had forgotten to include
common.h into os_win32.c to get u8 defined.
Signed-off-by: Jouni Malinen <j@w1.fi>
data.function needs to be set for the return value to be of any use and
strcmp won't work with NULL pointer either. (CID 99907)
Signed-off-by: Jouni Malinen <j@w1.fi>
In many applications it is useful not just to enumerate a group of well
known access points, but to use a address/mask notation to match an
entire set of addresses (ca:ff:ee:00:00:00/ff:ff:ff:00:00:00).
This change expands the data structures used by MAC lists to include a
mask indicating the significant (non-masked) portions of an address and
extends the list parser to recognize mask suffixes.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
The new control interface command TEST_ALLOC_FAIL and GET_ALLOC_FAIL can
now be used to trigger memory allocation failures for testing purposes.
TEST_ALLOC_FAIL sets a failure conditions with
<count>:func[;func][;func]... string and GET_ALLOC_FAIL returns the
current state using the same format. Whenever an allocation is made with
a matching backtrace of calling functions, the count is decremented by
one and once zero is reached, the allocation is forced to fail.
Function names can be prefixed with either '=' or '?' to get different
matching behavior. '=' requires this specific function to be the next
one in the backtrace (i.e., do not skip any other functions in the list
which is the default behavior). '?' allows the function to be optionally
present in the backtrace.
Signed-off-by: Jouni Malinen <j@w1.fi>
With CONFIG_WPA_TRACE_BFD, the type cast from void* to integer was
generating a compiler warning due to the target integer being larger in
size in case of 32-bit builds. Type case to bfd_hostptr_t instead of
directly to bfd_vma to avoid this.
Signed-off-by: Jouni Malinen <j@w1.fi>
The socket reference tracking entries need to be restored in case
os_realloc_array() fails when adding a new eloop socket.
Signed-off-by: Jouni Malinen <j@w1.fi>
If hostapd will use stdout for debugging, set stdout to be line
buffered in case its output is redirected to a file. This allows
incremental output to be viewed immediately instead of at the file
buffering interval.
Signed-hostap: Paul Stewart <pstew@chromium.org>
This converts most of the remaining perror() and printf() calls from
hostapd and wpa_supplicant to use wpa_printf().
Signed-off-by: Jouni Malinen <j@w1.fi>
This was used only for the VHT capability checks for determining bit
offset for right shift. That was replaced with a constant defines since
there is no need to calculate this at runtime.
Signed-off-by: Jouni Malinen <j@w1.fi>
Shift right on unsigned char limits the value to 0..63 which is within
bounds for base64_table[]. Anyway, some static analyzers do not seem to
understand that. See if an otherwise unnecessary masking gets rid of
false warnings. (CID 62858)
Signed-off-by: Jouni Malinen <j@w1.fi>
Shift right on unsigned char limits the value to 0..63 which is within
bounds for base64_table[]. Anyway, some static analyzers do not seem to
understand that. See if an otherwise unnecessary masking gets rid of
false warnings. (CID 62858)
Signed-off-by: Jouni Malinen <j@w1.fi>
Use a separate pointer and length field instead of trying to copy from a
struct field that has only part of the full buffer available.
(CID 68115)
Signed-off-by: Jouni Malinen <j@w1.fi>
_next_ns_data could look like it would be used uninitialized in
ieee80211_radiotap_iterator_next() to static analyzers. Avoid
unnecessary reports by explicitly initializing all variables in struct
ieee80211_radiotap_iterator. (CID 62878)
Signed-off-by: Jouni Malinen <j@w1.fi>
This makes it easier for static analyzer to confirm that the length
field bounds are checked. WPA_GET_BE16() is also used instead of
explicit byte-swapping operations in this file. (CID 68129)
Signed-off-by: Jouni Malinen <j@w1.fi>
This provides a simpler version of snprintf that doesn't require further
error checks.
Signed-off-by: Moshe Benji <moshe.benji@intel.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
This allows the URL to be passed as a single argument to the program
instead of getting split into multiple by os_exec(). This makes the
operation more robust for cases where the URL could have been received
from an external source and could potentially add extra arguments to the
command line.
In addition, fix the /system/bin/input execution by using system() for
it instead of execv() through os_exec(). /system/bin/input is a script
that execv() won't be able to run. Since the full command line is
specified, system() can be used for this. The keycode is also changed
from 3 to KEYCODE_HOME to make this work with current Android version.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the URL to be passed as a single argument to the program
instead of getting split into multiple by os_exec(). This makes the
operation more robust for cases where the URL could have been received
from an external source and could potentially add extra arguments to the
command line.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This allows the URL to be passed as a single argument to the program
instead of getting split into multiple by os_exec(). This makes the
operation more robust for cases where the URL could have been received
from an external source and could potentially add extra arguments to the
command line.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This change adds a cast to void to indicate that the path parameter is
unused when CONFIG_DEBUG_FILE is not defined. This fixes a compiler
warning about unused parameters.
Signed-off-by: Toby Gray <toby.gray@realvnc.com>
Use os_exec() to run the external browser to avoid undesired command
line processing for control interface event strings. Previously, it
could have been possible for some of the event strings to include
unsanitized data which is not suitable for system() use.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Use os_exec() to run the external browser to avoid undesired command
line processing for control interface event strings. Previously, it
could have been possible for some of the event strings to include
unsanitized data which is not suitable for system() use.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Use os_exec() to run the external browser to avoid undesired command
line processing for control interface event strings. Previously, it
could have been possible for some of the event strings to include
unsanitized data which is not suitable for system() use.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
random_mac_addr_keep_oui() is similar to random_mac_addr(), but it
maintains the OUI part of the source address.
Signed-off-by: Jouni Malinen <j@w1.fi>
'\e' representing ESC (0x1b) is not C standard, it's an GNU extension.
https://gcc.gnu.org/onlinedocs/gcc/Character-Escapes.html#Character-Escapes
Since the code also compiles on Windows with Microsoft compiler, we
should use '\033' instead.
Note: I didn't try to build the whole wpa_supplicant on Windows, so I
don't know if it still builds (I have no Visual Studio 2005 for a quick
test). I just needed the string conversion routines for the P"" syntax
in both directions.
Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
Due to a missing curly brackets, the OCSP status checking was not
working in the expected way. Instead of allowing optional-OCSP
configuration to accept connection when OCSP response was ready, all
such cases were marked as hard failures. In addition, the debug prints
were not necessarily accurate for the mandatory-OCSP-but-no-response
case (CID 72694, CID 72704).
Signed-off-by: Jouni Malinen <j@w1.fi>
This is similar to wpa_msg_global() in the same way as wpa_msg_ctrl() is
to wpa_msg(). In other words, wpa_msg_global_ctrl() is used to send
global control interface events without printing them into the debug
log.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use an explicit memset call to clear any hs20-osu-client configuration
parameter that contains private information like keys or identity. This
brings in an additional layer of protection by reducing the length of
time this type of private data is kept in memory.
Signed-off-by: Jouni Malinen <j@w1.fi>
Use an explicit memset call to clear any wpa_supplicant configuration
parameter that contains private information like keys or identity. This
brings in an additional layer of protection by reducing the length of
time this type of private data is kept in memory.
Signed-off-by: Jouni Malinen <j@w1.fi>
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>
The off-by-one error in printf_encode() bounds checking could have
allowed buffer overflow with 0x00 being written to the memory position
following the last octet of the target buffer. Since this output is used
as \0-terminated string, the following operation would likely read past
the buffer as well. Either of these operations can result in the process
dying either due to buffer overflow protection or by a read from
unallowed address.
This has been seen to cause wpa_supplicant crash on OpenBSD when control
interface client attaches (debug print shows the client socket address).
Similarly, it may be possible to trigger the issue in RADIUS/EAP server
implementation within hostapd with a suitable constructed user name.
Signed-off-by: Stuart Henderson <sthen@openbsd.org>
This patch adds epoll option for the eloop implementation. This can be
selected with the CONFIG_ELOOP_EPOLL=y build option.
[merit]
See Table1.
Table1. comparison table
+--------+--------+-----------+------------+-------------+
| | add fd | remove fd | prepare fd | dispatch fd |
+--------+--------+-----------+------------+-------------+
| select | O(1) | O(1) | O(N) | O(N) |
+--------+--------+-----------+------------+-------------+
| poll | O(1) | O(1) | O(N) | O(N) |
+--------+--------+-----------+------------+-------------+
| epoll | O(1) | O(1) | 0 | O(M) |
+--------+--------+-----------+------------+-------------+
"add fd" is addition of fd by eloop_sock_table_add_sock().
"remove fd" is removal of fd by eloop_sock_table_remove_sock().
"prepare fd" is preparation of fds before wait in eloop_run().
"dispatch fd" is dispatchment of fds by eloop_sock_table_dispatch().
"N" is all watching fds.
"M" is fds which could be dispatched after waiting.
As shown in Table1, epoll option has better performance on "prepare fd" column.
Because select/poll option requires setting fds before every select()/poll().
But epoll_wait() doesn't need it.
And epoll option has also better performance on "dispatch fd" column.
Because select/poll option needs to check all registered fds to find out
dispatchable fds. But epoll option doesn't require checking all registered fds.
Because epoll_wait() returns dispatchable fd set.
So epoll option is effective for GO/AP functionality.
[demerit]
The epoll option requires additional heap memory. In case of P2P GO, it is
about 8K bytes.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
scard_gsm_auth() used SIM_CMD_GET_RESPONSE for both SIM and USIM. Convert
the command into USIM_CMD_GET_RESPONSE for USIM.
Since commit eb32460029 ("Fix switching from EAP-SIM to EAP-AKA/AKA'")
EAP-SIM is using the USIM if available. This triggers a probably ancient
bug in scard_gsm_auth(), which results in sending the wrong get response
command to the USIM. Thus, EAP-SIM stopped to work after this change on
USIMs that expect the proper command.
Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
It looks like the demangle.h from binutils-dev is not installed that
commonly anymore. Since we need only two defines from that file, replace
the header file with those defines to make it easier to build with
WPA_TRACE_BFD=y.
Signed-off-by: Jouni Malinen <j@w1.fi>
These functions are not standard and do not exist in all systems, e.g.,
variants of Android. Instead use the macros defined in common.h.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Update the radiotap parser to the latest version of the
http://git.sipsolutions.net/radiotap.git/ library to get
parsing for vendor namespaces.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
wpa_supplicant and wpa_cli had already moved to allowing up to 4096 byte
buffer size to be used for control interface commands. This was limited
by the line edit buffer in interactive mode. Increase that limit to
match the other buffers to avoid artificially truncating long commands.
Signed-off-by: Jouni Malinen <j@w1.fi>
Do not truncate CURLINFO entries on first linefeed to get full IN/OUT
headers and data into debug log. Use wpa_hexdump_ascii() if any
non-displayable characters are included. Remove the separate header/data
debug dumps since all that information is now available from the debug
callback.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This hs20-osu-client client command can be used to parse a DER encoded
X.509v3 certificate with the logotype extensions and
id-wfa-hotspot-friendlyName values shown in detail.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
