When validating a MAC command, there is sometimes a misunderstanding of
what "src" and "dst" length mean.
There are actually two fields in the MHR:
- One giving the type of address, if it is short or extended, it is the
value provided by the macros IEEE802154_ADDR_MODE_{SHORT,EXTENDED} and
their respective decimal values are 2 and 3.
- One giving the size of the address field, this is
IEEE802154_{SHORT,EXT}_ADDR_LENGTH and their value is actually 2 and 8
(bytes).
The function validate_mac_command() provides inputs to
validate_mac_command_cfi_to_mhr() which expects the former information.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
The LLDN frame has been obsoleted in IEEE 802.15.4-2015f. This change
removes it from the code, introduces frame types from current spec
levels and updates the frame validation rules in accordance with the
spec.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
Several attributes in the ieee802154_context struct may potentially be
accessed from different threads and/or ISR context. Only some of these
attributes were properly guarded against race conditions.
This may not have been to problematic in the past but as other changes
in this PR introduce additional attributes and mutate several attributes
in a single atomic transaction, leaving such changes unprotected seems
dangerous.
This change therefore introduces systematic locking of the
ieee802154_context structure.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
IEEE 802.15.4 short address support is incomplete in several places.
This change improves short address support without claiming to fix
it everywhere. Future iterations will have to continue where this change
leaves off.
The purpose of this change was to:
* use the short address returned by association responses,
* automatically bind IEEE 802.15.4 datagram sockets to the short
address if available,
* use the short address in outgoing packages where applicable,
* improve validation of association/disassociation frames,
* model association more closely to the spec by tying it to the
existence of a short address in the MAC PIB thereby removing
redundancy in the PIB (which makes race conditions less probable),
* keep both, the short and extended addresses, of the coordinator.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
This changes fixes several bugs and inconsistencies in the IEEE 802.15.4
L2 implementation. These bugs were revealed while documenting intended
endianness of driver, IP, socket and L2 attributes (see previous
changes).
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
The IEEE 802.15.4 security implementation had several severe bugs:
* A regression introduced by 6ea225e34a
(net/ieee802154: Finally removing usage of ll_reserve in L2)
introduced a buffer leak (reading/ writing beyond the end of the frame
buffer) and led the security implementation to malfunction in all but
the simplest cases (i.e. encryption/authentication: none).
* Encryption vs. authentication modes were not properly implemented i.e.
encryption was always active even if not required by the chosen
encryption level.
* Nonce endianness was not correctly handled on decryption of packets
which led to authentication failures.
* The frame counter was not checked for overflows.
* The encryption output buffer limit (out_buf_max) was not correctly set.
* Setting an invalid key mode led to a NULL pointer deref.
* We use CCM rather than CCM* as crypto.h does not provide access to
CCM*. CCM does not support encryption-only operation, though. This
condition was not checked by the code.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
This change makes the packet socket and ieee802154 l2 drivers aware of
AF_PACKET sockets, see https://github.com/linux-wpan/wpan-tools/tree/master/examples
for examples which inspired this change.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
Zephyr IEEE 802.15.4 drivers and L2 stack use the same constant names
for different MTU definitions. The intent of this change is to introduce
a consistent MTU definition which can be used everywhere in zephyr to
avoid confusion, bugs and name conflict.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
This change makes the files which are part of this changeset comply to
the project's coding style rules as defined in .clang-format.
This required addition of some forward declarations and additional
dependencies into header files as some of them depended on the order of
header inclusion which was changed due to alphabetical ordering of
includes.
Background: .clang-format states "SortIncludes:true" which will force
re-ording of include-statements which in turn might break the build if
header file inclusion is not order-independent.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
This change decouples the IEEE 802.15.4 (L2) layer from all IPv6 (L3)
concerns.
Applications may now choose to set CONFIG_NET_6LO=n and
CONFIG_NET_L2_IEEE802154=y at the same time.
Setting CONFIG_NET_6LO=n will build a vanilla IEEE 802.15.4-2006 specs
compliant L2 layer without any reference to 6LoWPAN or IPv6. This allows
application developers to design custom non-IP protocols on top of
IEEE 802.15.4-2006 and thereby makes the L2 layer much more re-usable.
Fixes#48585.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
This change contains some merely editorial changes to inline comments
plus updates references from the IEEE 802.15.4-2003 spec to
IEEE 802.15.4-2006 which corresponds to the implementation level of
the module.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
Most existing TODO markers (as well as VSCode default settings) favor
TODO over ToDo - so let's make this a little bit more consistent in the
IEEE 802.15.4 module.
Signed-off-by: Florian Grandel <jerico.dev@gmail.com>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
All addressing mode but IEEE802154_ADDR_MODE_NONE should have a valid
address. If not, the frame is invalid.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
-Wimplicit-fallthrough=2 requires a fallthrough comment or a compiler
to tells gcc that this happens intentionally.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Added the 'fall through' comment to switch to quiet compiler
and coverity warnings.
Fixes#25724Fixes#25726
Signed-off-by: David Leach <david.leach@nxp.com>
Frame format was validated, but its length should be also validated
relevantly against the format.
Fixes#24970
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Moving towards serialized fragmentation, adapting mac command creation
to avoid the need of ll_reserve etc...
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Remove network specific default and max log level setting
and start to use the zephyr logging values for those.
Remove LOG_MODULE_REGISTER() from net_core.h and place the
calls into .c files. This is done in order to avoid weird
compiler errors in some cases and to make the code look similar
as other subsystems.
Fixes#11343Fixes#11659
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Unify the function naming for various network checking functions.
For example:
net_is_ipv6_addr_loopback() -> net_ipv6_is_addr_loopback()
net_is_my_ipv6_maddr() -> net_ipv6_is_my_maddr()
etc.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Currently logging subsystem supports quite small number of function
parameters. So split some long functions into smaller pieces.
Hopefully this is just a temporary patch and we can support more
parameters to logging macros.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Instead of one global log level option and one on/off boolean
config option / module, this commit creates one log level option
for each module. This simplifies the logging as it is now possible
to enable different level of debugging output for each network
module individually.
The commit also converts the code to use the new logger
instead of the old sys_log.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
*_ll_src/*_ll_dst/*_ll_swap/*_ll_if were not self explanatory, ll
meaning "link layer" it's ambiguous what the names meant.
Changing to:
*_lladdr_src/*_lladdr_dst/*_lladdr_swap/*_lladdr_if to fix this.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Instead of waiting forever for a network buffer, have a timeout
when allocating net_buf. This way we cannot left hanging for a
long time waiting for a buffer and possibly deadlock the system.
This commit adds checks to L2 and network support libraries.
Fixes#7571
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The subsys/net/ directory is more logical place for L2 code instead
of ip/ directory. No functionality changes by this commit.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-06-27 17:02:59 +03:00
Renamed from subsys/net/ip/l2/ieee802154/ieee802154_frame.c (Browse further)
