When new socket context is created on accepting connection to a
listening socket, its recv_q FIFO should be initialized. Without
initialization, this worked by a chance when FIFO structure was
simple, but recent change to add dlist to it (which now needs
proper initialization) exposed this issue.
Jira: ZEP-2576
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
If the query name is already in numeric format, there is no
need to send the query string to DNS server as we can just
convert it ourselves.
Jira: ZEP-2562
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit removes IP address parsing from DNS init and
replaces it by call to net_ipaddr_parse().
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
TLS and DTLS are not related to each other so allow DTLS to be
enabled even if TLS is disabled.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The IP header was stripped by _net_app_ssl_mux() when it received
IP packet. This is fine but if the application expects the get
the IP header, then there is a problem. Fix this by saving IP
header to ssl_context and then putting it back in front of the
packet when the data is passed to application.
Note that this IP header is not used by net_app when the packet
is sent because TLS/DTLS creates a tunnel for transferring packets
and user can only sent packets via this tunnel.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
k_delayed_work_cancel now only fail if it hasn't been submitted which
means it is not in use anyway so it safe to reset its data regardless
of its return.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
The original commit 8ebaf29927 ("net: http: dont timeout
on HTTP requests w/o body") was intended to handle a case
where an HTTP response had been retrieved from the server but
the HTTP parser couldn't meet the criteria for calling
"on_message_complete". For example, a POST to a REST API
where the server doesn't return anything but an HTTP
status code.
It was a really bad idea to check a semaphore count. There
is a lot of kernel logic built into semaphores and how the
count is adjusted. The assumption that the value is 0
after the k_sem_give() is incorrect. It's STILL 0 if
something is pending with a k_sem_take(). By the time
k_sem_give() is done executing the other thread has now
been kicked and the count is back to 0.
This caused the original check to always pass and in turn
breakage was noticed in the http_client sample.
Let's do this the right way by setting a flag when
on_message_complete is called and if that flag is not set
by the time we reach recv_cb, let's give back the semaphore
to avoid a timeout.
Jira: ZEP-2561
Signed-off-by: Michael Scott <michael.scott@linaro.org>
The HTTP header field pointers are saved for each HTTP request.
But the counter that saves the pointers was never reset to initial
value when the connection was dropped. This meant that the header
field values were only proper for first HTTP request.
Jira: ZEP-2463
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The server needs global enable/disable status instead of only being
able to enable or disable just the TLS server part.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If we have specified AF_UNSPEC when initializing application
server local address, then we try to bind to both IPv4 and IPv6
addresses. The old code did not honor the port number in this
case but used some random value for port.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If user has specified a specific local address, then honor that
and do not try to bind IPv4 context if only IPv6 is defined,
and vice versa for IPv6.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Setting just IPv4 address as was allowed before isn't enough for
real-world usage (e.g. accessing DNS and outside servers in general).
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Per LwM2M spec (7.3.2.4 Operation on Object):
"If the payload (New Value) conveys an Object Instance ID in conflict
with one already present in the LwM2M Client, the complete request
MUST be rejected and a "Bad Request" error code MUST be sent back."
Let's do that.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Per LwM2M specification 7.3.2.4, "Optional Resources MAY be conveyed
in the "New Value" parameter as well; the LwM2M Client MAY ignore the
optional resources it doesn't support."
Update TLV/JSON writer to ignore error when object fields are not
found (treated as optional resource). This will allow the resources
supported being written.
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
[michael.scott@linaro.org: re-worked patch post addition of CREATE
operation.]
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Prior to this patch, a CREATE operation was handled as a WRITE operation
after the object instance was created. This becomes problematic when
handling of optional resources differs between these 2 operations.
Let's introduce an actual CREATE operation and use it later to create
these differences.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
We are returning EINVAL from content format write ops when an object
field definition is not found (an optional field which is not
implemented). Instead, return ENOENT which lets the LwM2M engine
know to send ZOAP_RESPONSE_CODE_NOT_FOUND to the LwM2M server at the
end of handle_request().
NOTE: This behavior is not correct when we call the writer right after
a CREATE operation where the data is assigned to resources for the
first time. This case will be handled in a follow-up patch once we're
able to distinguish between a WRITE and a CREATE in the write op
handler.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
POSIX requires struct sockaddr's field to be named "sa_family"
(not just "family"):
http://pubs.opengroup.org/onlinepubs/009696699/basedefs/sys/socket.h.html
This change allows to port POSIX apps easier (including writing
portable apps using BSD Sockets compatible API).
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Per LwM2M specification 5.3.1 Register, report "ct=11543" when JSON is
supported. Also, report the resource type as rt="oma.lwm2m" when "ct="
presents.
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
Per LwM2M specification 5.3.1 Register. When object instances are
available, object ID can be ignored in registration message
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
According to LwM2M specification 5.2.7.3 Bootstrap DISOCVER,
security object is only reported to the bootstrap server.
Correct the behavior to (1) report server object to the server
(2) do not report security object at registration time
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
This is how it's called in the main docs, so use this same phrase in
Kconfig and samples too.
Also, added some articles to docs.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Make sure that a network packet is sent after calling
http_response_send_data(). Othwerwise the packets might be
piling up and not sent in timely manner.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Currently, the HTTP_NETWORK_TIMEOUT setting is hard-coded as 20 seconds.
Not every application may want to wait that long, so let's change this
to a CONFIG option: CONFIG_HTTP_CLIENT_NETWORK_TIMEOUT
NOTE: This also removes HTTP_NETWORK_TIMEOUT from the public http.h
include file. It was not being used externally to HTTP client sources.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
A TCP FIN message is passed on to user apps as a tcp_received_callback
with a NULL pkt parameter. This means the connection is closing and
the app should do whatever cleanup it needs as there will be no further
callbacks for the current TCP connection.
Currently, if a HTTP client request doesn't receive a "body" which
the HTTP parser can use to trigger on_message_complete, then the request
will end up timing out and most apps will think an error has occurred.
Instead, let's handle the TCP FIN message and return the waiting
semaphore, leaving the app to deal with whatever has been set in the
current HTTP context response data (IE: http_status).
This fixes using HTTP client to send POST data to servers which
only respond with HTTP_OK status and no body.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
"Network Application Support" itself is renamed from "Network
Applications" and also includes net_app API.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
If the user has not specified CONFIG_NET_APP_MY_IPV4_ADDR or
CONFIG_NET_APP_MY_IPV6_ADDR, the value is set to "" in this case.
This will be converted to ANY IP address which is not useful
to be set to the network interface. So check this and just
continue the init in this case without setting the IP address.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The documentation says that the API will automatically append the
net_buf fragment to the end of network packet fragment chain.
This was not the case and current only user for this API in
echo-server sample appended the fragment itself. The fix is to
automatically append the fragment to the end of fragment chain.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
1. According to the specification 5.3.1, it's a MUST to specify
(1) content format: app link format (2) supported lwm2m version.
Also, we should use text/plain instead of LWM2M's (obsolete).
2. Use LWM2M_FORMAT_OMA_TLV as default accept format when accept option
is not given from the caller for TLV is a MUST have in LwM2M spec and
it can deals w/ multiple resources read
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
Save in observe_node_data so that later on we can select the correct
content format requested by the caller at the first time
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
Function do_write_op_tlv() uses in->inbuf and in->insize as a looping
condition to iterate through items in TLV payload and call
do_write_op_tlv_item() to update the value.
However, do_write_op_tlv_item() will override the value before calling
for fitting the usage of lwm2m_write_handler() function without restore
them. (lwm2m_write_handler() is also called by plain text/json writer
and is expecting in->inbuf is the start of buffer and in->insize as the
length of the buffer)
This will result in errors in do_write_op_tlv().
Signed-off-by: Robert Chou <robert.ch.chou@acer.com>
RFC-7230 "HTTP/1.1 Message Syntax and Routing" Section 5.4
describes the "Host" header formatting. If Zephyr user
specifies a host string as a part of the HTTP client request
structure, we end up sending an incorrect HTTP header due
to a missing "Host :" text.
Fix this by prepending "Host: " to the header data before
the user supplied host string.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
sprint_token is only used by SYS_LOG_DBG, so only build it when
CONFIG_SYS_LOG_LWM2M_LEVEL > 3.
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Separate response can happen when handling block transfer for firmware
updates, and to avoid duplicating the lwm2m_udp_receive function, create
and additional flag to allow handling CoAP separate response messages.
This is required to avoid removing the reply callback, since a new
message (with a valid token) will be received later from the server.
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Simplifly net_context_sendto calls and also allows to easily debug every
send/receive lwm2m call.
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
The API name space for Bluetooth is bt_* and BT_* so it makes sense to
align the Kconfig name space with this. The additional benefit is that
this also makes the names shorter. It is also in line with what Linux
uses for Bluetooth Kconfig entries.
Some Bluetooth-related Networking Kconfig defines are renamed as well
in order to be consistent, such as NET_L2_BLUETOOTH.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
IPSO Smart Objects are a set of template objects based on the LwM2M
object framework which are designed to represent standard hardware
such as temperature and humidity sensors or light controls.
Let's add a place for these objects to live as well as an initial
temperature sensor object.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Origin: SICS-IoT / Contiki OS
URL: https://github.com/sics-iot/lwm2m-contiki/tree/lwm2m-standalone-dtls
commit: d07b0bcd77ec7e8b93787669507f3d86cfbea64a
Purpose: Introduction of LwM2M client library.
Maintained-by: Zephyr
Lightweight Machine-to-Machine (LwM2M) is a protocol stack extension
of the Constrained Application Protocol (CoAP) which uses UDP
transmission packets.
This library was based on source worked on by Joakim Eriksson,
Niclas Finne and Joel Hoglund which was adopted by Contiki and then
later revamped to work as a stand-alone library.
A VERY high level summary of the changes made:
- [ALL] sources were re-formatted to Zephyr coding standards
- [engine] The engine portion was re-written due to the heavy reliance
on ER-CoAP APIs which are not compatible to the Zephyr CoAP APIs as
well as other Zephyr specific needs.
- [engine] All LWM2M/IPSO object data is now abstracted into resource
data which stores information like the data type, length, callbacks
to help with read/write. The engine modifies this data directly (or
makes callbacks) instead of all of the logic for this living in each
object's code. (This wasn't scaling well as I was implementing
changes).
- [engine] Related to the above change, I also added a generic set of
getter/setter functions that user applications can call to change
the object data instead of having to add getter/setting methods in
each object.
- [engine] The original sources shared the engine's context structure
quite extensively causing a problem with portability. I broke up the
context into it's individual parts: LWM2M path data, input data and
output data and pass only the needed data into each set of APIs.
- [content format read/writer] sources were re-organized into single
.c/h files per content formatter.
- [content format read/writer] sources were re-written where necessary
to remove the sharing of the lwm2m engine's context and instead only
requires the path and input or output data specific to it's
function.
- [LwM2M objects] re-written using the new engine's abstractions
Signed-off-by: Michael Scott <michael.scott@linaro.org>
