The coap client takes requests and provides responses
asynchronously to callback given in a request.
Currently supports only 1 request at a time.
Signed-off-by: Jarno Lämsä <jarno.lamsa@nordicsemi.no>
The function gets the the BLOCK1 option from a received message
and extracts the block number, block size and has-more flag from
it.
Signed-off-by: Lukas Woodtli <lukas.woodtli@husqvarnagroup.com>
The function adds a block option to a CoAP message. If the message
is a request the BLOCK1 option is added. Otherwise (response) the
BLOCK2 option is added.
Signed-off-by: Lukas Woodtli <lukas.woodtli@husqvarnagroup.com>
method_from_code() signature has changed to return error and
the method. In case of an invalid code it returns -EINVAL and
causes coap_handle_request() to return -ENOTSUP.
Fixes: #49498
Signed-off-by: Sagar Shah <sagar.shah@legrand.us>
coap_packet_parse() returns different values depending on error.
It now returns
-EINVAL for invalid input arguments,
-EBADMSG for malformed coap header,
-EILSEQ for malformed options error.
Fixes: #48960
Signed-off-by: Sagar Shah <sagar.shah@legrand.us>
This commit removes the resource pointer NULL check inside the resource
enumeration loop of the `coap_well_known_core_get` function because the
expression `(resource + 1)` will never evaluate to NULL (aka. 0).
This fixes the "comparison will always evaluate as ‘true’ for the
pointer operand" warning generated by the GCC 12.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
COAP_DEFAULT_MAX_RETRANSMIT and COAP_DEFAULT_ACK_RANDOM_FACTOR
should be configurable to determine the max transmission
timeout of a CoAP packet.
Signed-off-by: Andreas Chmielewski <andreas.chmielewski@grandcentrix.net>
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>
When sending 2 or more confirmable message before first one is
writed to socket all messages use same coap pending structure.
Now coap_pending_init() set data pointer which lock allocation
by each call.
Using data pointer for detecting free is more stable than timeout.
Timeout is initialized only before first socket send. Queued packet
may be triggered later than other and may cause that same block is
allocated multiple time.
Signed-off-by: Juha Heiskanen <juha.heiskanen@nordicsemi.no>
According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:
sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
When a file is download, `ctc->current` is increaed by the block
size, which is correct for all the blocks except the last one.
Once the download is compelted, ctx->current must match
`ctx->total_size`.
Signed-off-by: Efrain Calderon <efrain.calderon@aquarobur.com>
For functions returning nothing, there is no need to document
with @return, as Doxgen complains about "documented empty
return type of ...".
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add a function to update the coap block context from a
packet, according to the block option enum provided.
The existing coap_next_block does not handle block1 transfers
properly because we need to inspect the block1 option
returned by the server. This function is reworked to make use
of the newly introduced one.
Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
According to RFC-7959:
When uploading with coap block1 requests the server may respond
with a size1 option (together with the response code 4.13).
This to indicate the maximum size the server is able and willing
to handle.
This commit changes the total_size in the current block context
being handled to the optional size1 option value from the server.
Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
Based on on RFC 8132 -
PATCH and FETCH Methods for the Constrained Application Protocol (CoAP)
Signed-off-by: Veijo Pesonen <veijo.pesonen@nordicsemi.no>
Based on on RFC 8132 -
PATCH and FETCH Methods for the Constrained Application Protocol (CoAP)
Signed-off-by: Veijo Pesonen <veijo.pesonen@nordicsemi.no>
Instead of manually computing payload offset, let the CoAP library do
the work, and use the payload pointer returned by the
`coap_packet_get_payload()` function instead.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
The function did not work correct for packets generated with Zephyr
APIs, as `max_len` holds the entire buffer size, not the actual packet
size.
Additionally, unify how Payload Marker is handled in the calculation -
currently the coap parsing function adds it to the `opt_len` field,
which is counter-intuitive.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
It is important that offset is set in the same manner, regardless of the
origin packet - it should indicate the final packet length in both
cases, when the packet is generated on the Zephyr side with CoAP APIs,
and when it's parsed from the UDP datagram. This allows for functions
like `coap_packet_get_payload()` to work correcty in both cases.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
coap_response_received returned NULL if the observe option was out of
order, however it makes more sense to return the coap_reply handler
without actually calling it.
Additionally the reorder check has been modified to partially match
the RFC.
Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
When handling CoAP Confirmable requests, there is a common
Acknowledgement initialization procedure that repeats for each
response packet initialization. This patch adds a function that
simplifies Acknowledgement initialization procedure encapsulating
repeating code.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
This patch replaces magic numbers with COAP_TOKEN_MAX_LEN value and
removes unnecessary castings of token buffer type.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
RFC 7252 (CoAP) specifies value of the Version (Ver) field in the
protocol header to value 1. This patch defines value of the Version
field to make packet initialization easier. All samples and tests
are updated to use the new COAP_VERSION_1 field when initializing
a CoAP packet.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
CoAP RFC (RFC7252) states that end points should support
the CoRE Link Format of discoverable resources as described in RFC6690
(refer section 7.2 of the RFC7252).
Fixes#31609
Signed-off-by: Kasun Hewage <kasun.ch@gmail.com>
Token and payload are appended from data buffers to a CoAP packet
being encoded. Keyword const was missing for parameters in functions
appending these parts to a packet.
Now token and paylod can be copied to CoAP packet from constant
buffers, that can be stored in ROM.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
This patch introduces COAP_TOKEN_MAX_LEN definition in coap.h file.
This definition replaces magic number across CoAP protocol
implementation and CoAP samples.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
CoAP protocol defines registry of Content-Format option values.
This patch adds this enumeration to coap header file to make it
available to all applications using CoAP protocol. It modifies
code using CoAP service to use new enumeration.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
Add Kconfig option to randomize the initial ACK timeout, as specified in
RFC 7252. The option is enabled by default.
Additionally, finetune the default value of COAP_INIT_ACK_TIMEOUT_MS
option, to match the default ACK_TIMEOUT value specified by the RFC
7252. The RFC does not specify the minimum/maximum value of the
ACK_TIMEOUT parameter, but only suggests it should be no lower than 1
second, so adjust the option range to reflect this.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Introduce retransmission counter to the coap_pending structure. This
allows to simplify the retransmission logic and allows to keep track of
the number of remaining retranmissions.
Additionally, extend the `coap_pending_init()` function with `retries`
parameter, which allows to set the retransmission count individually for
each confirmable transaction.
Fixes#28117
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
`delta_size` was incorrectly used to assess whether extended option
length field shall be used. In result, options larger than 268 bytes
were not encoded properly.
Fixes#31206
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
In 'struct coap_resource' path description:
- the plus symbol represents a single-level wild card in the path;
- the hash symbol represents the multi-level wild card in the path.
This change keeps compatibility with RFC 7252 but allows handling
multiple requests in single function.
Signed-off-by: Eug Krashtan <eug.krashtan@gmail.com>
In case CoAP packet does not carry payload, and the last option is
zero-length, the option structure was not filled with data (opt number
and length). Fix the length check to prevent this from happening.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Any CoAP implementation when use at least block transfer or is a server
side need access some CoAP options as integer values. This add a method
at public interface and defines for block wise operations to avoid code
useless code duplication.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
So far, coap_pending structure kept track only of the timeout interval
between two consecutive retransmissions. Calculations inside
`coap_pending_next_to_expire` relied only on this value. This approach
gives incorrect results though, in case multiple messages are pending
for retransmission.
For instance, assuming initial retransmission timeout is set to 2
seconds. If some message had been retransmitted already, its timeout
would be increased to 4 seconds. Any new message added to the pending
list would have a retransmission timeout set to 2 seconds, and will be
returned as a first message to expire, no matter how long the initial
message was already on the list.
To resolve this, add a `t0` field to the coap_pending structure. This
field is initialized to the initial transmission time, and is increased
on each retransmission by the retransmission timeout.
`coap_pending_next_to_expire` uses this value to calculate absolute
time, when the next retransmission should take place, and based on this
information returns correctly first pending message to expire.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Randomly generating ID the first time coap_next_id() is called is more
in accordance with CoAP recommendations (see
https://tools.ietf.org/html/draft-ietf-core-coap-18, section 4.4)
"It is strongly recommended that the initial value of the
variable (e.g., on startup) be randomized, in order to make successful
off-path attacks on the protocol less likely."
Doing this in a dedicated init function is the cleanest and most
idiomatic approach. This init function is not exposed publically which
means it will be called only once, by the network stack init procedure.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
move misc/printk.h to sys/printk.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move misc/byteorder.h to sys/byteorder.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Found a few annoying typos and figured I better run script and
fix anything it can find, here are the results...
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
To get u8_t value, just right shift the operands are enough.
Fixes#12298
Coverity-CID: 190635
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
There are issues using lowercase min and max macros when compiling a C++
application with a third-party toolchain such as GNU ARM Embedded when
using some STL headers i.e. <chrono>.
This is because there are actual C++ functions called min and max
defined in some of the STL headers and these macros interfere with them.
By changing the macros to UPPERCASE, which is consistent with almost all
other pre-processor macros this naming conflict is avoided.
All files that use these macros have been updated.
Signed-off-by: Carlos Stuart <carlosstuart1970@gmail.com>
As we are removing net_app and net_pkt based libraries and
applications, CoAP legacy based libraries and apps are moved
to socket based implementations. So removing legacy CoAP.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
When walking through the coap resources in coap_handle_request, return
-EPERM if a resource exists but does not have the request method. This
allows the caller to catch the error and return a 4.05 message.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Fix misspellings in documentation (.rst, Kconfig help text, and .h
doxygen API comments), missed during regular reviews.
Signed-off-by: David B. Kinder <david.b.kinder@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>
Two separate folders and Kconfig options causing confusion on
CoAP and CoAP_SOCK implementations. This patch simplifies it.
Current CoAP Kconfig option moved to COAP_NET_PKT.
Signed-off-by: Anas Nashif <anas.nashif@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>
Adding spaces around "=" when definining Kconfig template so
that is more consistent with overall style of these template
variables.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
In coap_option_value_to_int function, when coap option length is 4,
option->value[3] should be shifted by 0 rather than option->value[2].
This doesn't affect the behavior of function but needs to be fixed.
In coap_append_option_int function, when the value is between 0xffff
and 0xffffff(when option length is 3), bit shift operation is wrong.
For example, if the value is 0xABCDEF, by sys_put_be16(val, data)
data[0]=0xCD, data[1]=0xEF, by val >> 16, data[2]=0xAB. So the result
becomes 0xCDEFAB not 0xABCDEF. So, to sys_put_be16 function hand
&data[1] over instead of handing data over and val >> 16 needs to be
set to data[0], not data[2].
Signed-off-by: Taehwa Kang <hegrecomm@gmail.com>
The return of memset is never checked. This patch explicitly ignore
the return to avoid MISRA-C violations.
The only directory excluded directory was ext/* since it contains
only imported code.
Signed-off-by: Flavio Ceolin <flavio.ceolin@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>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though.
Remove some 'default ""' properties on string symbols too.
Also make definitions more consistent by converting some
config FOO
<type>
prompt "foo"
definitions to a shorter form:
config FOO
<type> "foo"
This shorthand works for int/hex/string symbols too, not just for bool
symbols.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
sin6_scope_id is not set anywhere and not used. Probably left over
from old ZOAP library. Just address, port and family type are enough
to find registered CoAP observer.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
We only clear 3 of the 6 member variables of the coap_reply structure
in coap_reply_clear().
Let's make sure to reset all of them.
Signed-off-by: Michael Scott <michael@opensourcefoundries.com>
The base CoAP retry setting is quite fast for network technologies
such as LTE-M and LoRa. Let's add an option to delay retries
a bit longer depending on the need.
Signed-off-by: Michael Scott <michael@opensourcefoundries.com>
Instead of CONFIG_COAP_MBEDTLS_SSL_MAX_CONTENT_LEN, use recently
introduced CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
RFC 7252, sec 4.8 [https://tools.ietf.org/html/rfc7252#section-4.8]
The default MAX_RETRANSMIT is 4, current implementation only
retry 3 times. Update next_timeout() to return one more retry.
Also, add a TODO for random generated initial ACK timeout
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
The CoAP samples use an MBEDTLS config "config-coap.h" which could be
re-used by the LwM2M sample, except that most servers use a larger
maximum content length setting of 1500 bytes.
Let's add a CONFIG to set this for users of the CoAP lib and set the
CONFIG value for the samples to the 256 size currently used.
Signed-off-by: Michael Scott <michael@opensourcefoundries.com>
Introducing CMake is an important step in a larger effort to make
Zephyr easy to use for application developers working on different
platforms with different development environment needs.
Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.
This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.
For users that just want to continue their work with minimal
disruption the following should suffice:
Install CMake 3.8.2+
Port any out-of-tree Makefiles to CMake.
Learn the absolute minimum about the new command line interface:
$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..
$ cd build
$ make
PR: zephyrproject-rtos#4692
docs: http://docs.zephyrproject.org/getting_started/getting_started.html
Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
Currently, we check the length of an option value in the
coap_packet_append_option() function. This isn't required as
we're appending to a net_pkt and not using struct coap_option
where the limitation is imposed.
Instead, we should check the option value length in
parse_option() where we assign the value to a struct
coap_option.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
From RFC 7252, section 3
"The absence of the Payload Marker denotes a zero-length payload.
The presence of a marker followed by a zero-length payload MUST
be processed as a message format error."
Check empty payload when COAP_MARKER is found and add a test case to
cover it
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
Options parsing helpers functions unable to handle the malformed
packets and dropping it. Improved parsing functionality to handle
malformed packets. Also payload marker is not mandatory in CoAP
packets when there is no payload. Exit gracefully when CoAP
packet contains only options.
Fixes#4396.
Coverity-ID: 178060
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
This calculation reads the length portion of the COAP header to determine
the length of the coap packet. However, when encrypted via DTLS this
value seems to be getting corrupted. Let's change this calculation so
that it will work for when DTLS is both enabled and disabled. Use the
total length of the fragment data and substract back out the headers
to get a correct value.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Current coap library fails to parse or prepare if packet is more
than one fragment. Added support to handle multi fragment packet.
Also well-known/core api used to prepare coap packet and send it
through net context api immediately. This is goind to be problematic
if user doesn't enable net context. Also user can not encrypt coap
packets. Now api will return prepared coap packet to application.
Application will send it to peer.
Jira: ZEP-2210
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
ZOAP library has certain limitations in parsing and preparation of
coap messages. It can handle only on single network fragment. If
network packet is split between multiple fragments it fails. This
patch is just copy and rename of 'zoap' to 'coap'.
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
