Commit Graph

2754 Commits

Author SHA1 Message Date
Andrew Boie
760644041c net: purge NET_STACK and other stack APIs
The current design of the network-specific stack dumping APIs
is fundamentally unsafe. You cannot properly dump stack data
without information which is only available in the thread object.

In addition, this infrastructure is unnecessary. There is already
a core shell command which dumps stack information for all
active threads.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-03-14 13:10:19 -04:00
Marcin Niestroj
c0b50c72be net: mqtt: use MQTT_UTF8_LITERAL() to simplify code and fix debug log
Contents of mqtt_3_1_0_proto_desc and mqtt_3_1_1_proto_desc were logged
with following code:

  MQTT_TRC("Encoding Protocol Description. Str:%s Size:%08x.",
           mqtt_proto_desc->utf8, mqtt_proto_desc->size);

This resulted in invalid log, since they were not NULL-terminated
strings. Use MQTT_UTF8_LITERAL() to initialize both utf8 strings to make
sure they are NULL-terminated now and valid to print and
log. Additionally this makes the code a bit shorter.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
2020-03-13 10:06:18 +02:00
PK Chan
9f9e00a62d net: mqtt: Added event for MQTT ping response.
There are scenarios where there is a NAT firewall in between MQTT
client and server. In such case, the NAT TCP timeout may be shorter
than MQTT keepalive timeout and TCP timeout. The the MQTT ping
request message is dropped by the NAT firewall, so that it cannot be
received by the server, resulting in void MQTT ping response message.
There is no TCP FIN or RST at all. The application looks hang-up
until TCP timeout happens on the client side, which may take too
long.

Therefore, the event MQTT_EVT_PINGRESP is added to inform the
application that the route between client and server is still valid.

Signed-off-by: PK Chan <pak.kee.chan@nordicsemi.no>
2020-03-12 11:07:14 +02:00
Stephanos Ioannidis
5aa62369d4 net: shell: Handle ENETUNREACH for IPv4 ping
This commit updates the the IPv4 ping command to handle the ENETUNREACH
error number returned by `net_icmpv4_send_echo_request` function when
IPv4 is unavailable.

The `net_icmpv4_send_echo_request` function previously returned EINVAL
when IPv4 is unavailable and this caused the shell command to report
"Invalid IP address" even when the provided IP address is correct; this
problem was corrected by returning ENETUNREACH instead of EINVAL in the
aforementioned function.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-03-11 13:25:55 -05:00
Stephanos Ioannidis
2c733d5195 net: icmpv4: Return ENETUNREACH when IPv4 is unavailable
net_icmpv4_send_echo_request currently returns EINVAL (invalid
argument) when IPv4 is unavailable.

Since the availability of IPv4 has nothing to do with the arguments
provided to this function and the meaning of EINVAL in this case is
ambiguous, return the ENETUNREACH (network is unreachable) error
number instead.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-03-11 13:25:55 -05:00
Oleg Zhurakivskyy
bedd4e01fd net: tcp2: Add a mutex to TCP connection
The TCP connection might be concurrently modified from the
TR/TX threads, so add a mutex to protect from the concurrent
modification.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
fad38b12a3 net: tcp2: Update test protocol functions
After removing the test windows, update test protocol
functions for the TTCN-3 sanity check.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
615d73b2c9 net: tcp2: Set TCP connection endpoints in net_tcp_connect()
Initialize and set IPv4/IPv6 connection endpoints in net_tcp_connect().

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
a156d76f8e net: tcp2: Do not base the incoming data evaluation on PSH
Do not base the incoming data evaluation on PSH.

Also, reduce the condition branches.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
f149eb7b14 net: tcp2: Remove obsolete test window functions
These test receive windows were used by TTCN-3 sanity check,
but it's possible to do without them.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
16b8244cf8 net: tcp2: Eliminate the need for a test send window
In order to drop dependency on a heap, drop the
test send window.

Use net_tcp_queue_data() to receive the outgoing data
from the socket layer.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
b25faa6159 net: tcp2: Eliminate the need for a test receive window
In order to drop dependency on a heap, drop the test
receive window.

The receive window was needed for TTCN-3 sanity check,
but it's possible to do without it.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
4c81935c2e net: tcp2: Don't instantiate an extra connection on SYN+ACK
On incoming SYN+ACK, use the existing TCP connection.

This problem was overlooked earlier and was found while
testing TCP2 client side.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
b0381bc80e net: tcp2: Check the ack number in SYN_SENT
In SYN_SENT check the ack number of the incoming TCP message
against our sequence number.

This problem was overlooked earlier and was found while
testing TCP2 client side.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
038618dbc8 net: tcp2: Guard against th_get() on NULL pkt
This problem was overlooked earlier and was found while
testing TCP2 client side.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
1eccf22526 net: tcp2: Add log_strdup() where necessary
In case the log output involves the content of the static
buffer, add log_strdup().

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
ebbb7f3d56 net: tcp2: Don't instantiate an extra connection on connect
Don't erroneously instantiate an extra TCP connection
on TCP connect.

This problem was overlooked earlier and found while testing
TCP2 client side.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
d6f1937fbb net: tcp2: Switch from k_timer to k_delayed_work
k_timer callback is executed from ISR context, which isn't
currenty compatible with Zephyr's shell implementation.

This problem was found while testing TCP2 client side.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
bab5e7bd96 net: tp: Add IPv6 support for test protocol
In order to suport using test protocol over IPv6,
add IPv6 support.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
27a12b78cb net: tcp2: Drop obsolete ip_get(), ip6_get() macros
After adding IPv6 support, there's no need for them.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
e301397af1 net: tcp2: Use net_tcp_finalize() for checksum calculation
In order to support IPv6, use net_tcp_finalize() for checksum
calculation.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
9292ce9efc net: tcp2: Add IPv6 support for outgoing packets
Add IPv6 support for outgoing packets.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
75820c9bdf net: tcp2: Register test inputs for TTCN-3 based TCP2 sanity check
In order to support TTCN-3 based TCP2 sanity check,
register test inputs with net_conn_register() and adjust
test functions to account for this.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
f5c1ee03b8 net: tcp2: Add support for a IPv6
In order to support IPv4/IPv6, work with packet through
net_pkt_ip_hdr_len(), net_pkt_ip_opts_len() which account
for IPv4/IPv6, IPv4 options and IPv6 extension headers.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Oleg Zhurakivskyy
6be5935f17 net: ipv4: Remove temporary interception of TCP, UDP for TCP2
Remove temporary interception of TCP, UDP for TTCN-3 based
TCP2 sanity check.

As a part of adding IPv6 support, TCP2 will register test
callbacks/inputs with net_conn_register().

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-11 16:24:52 +02:00
Patrik Flykt
794b32a4fc net: tcp2: Allocate endpoints before using
Allocate tcp2.c endpoints before storing port numbers or addresses.
Select the IPv4 source address since net_context_create_ipv4_new()
is not currently called on packet output.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2020-03-11 16:24:52 +02:00
Marcin Niestroj
f15ac65254 net: icmpv4: drop requests on NET_OFFLOAD interfaces
NET_OFFLOAD interfaces do not handle ICMP request. Request to send ICMP
packet resulted in NULL pointer dereference in net_if_tx() later
on. Prevent that by detecting NET_OFFLOAD interfaces early in icmpv4
module.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
2020-03-10 16:44:13 +02:00
Marek Porwisz
914a00230f net: openthread: Implement energy scan in openthread using radio driver api
OpenThread has api to make use of radios energy scan feature.
Implemented this api in zephyr. This allows thread to perform energy
scan when needed.

Signed-off-by: Marek Porwisz <marek.porwisz@nordicsemi.no>
2020-03-10 14:59:10 +02:00
Jukka Rissanen
505e306b72 net: context: Allow binding AF_PACKET multiple times
If the system has more than one network interface, then it should
be possible to bind a AF_PACKET socket to each interface if the
network interface index is set when bind() is called. This was
not possible earlier as the code was always using default network
interface with AF_PACKET socket bind().

Fixes #23153

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2020-03-10 14:58:30 +02:00
Robert Lubos
d2e7a7d0c7 net: lwm2m: Notify when it's safe to turn RX off
According to LWM2M specification, when Queue Mode is used, the LWM2M
client should keep the reciever on for specified time after sending A
CoAP message. This commit adds a new LWM2M event,
`LWM2M_RD_CLIENT_EVENT_QUEUE_MODE_RX_OFF`, to facilitate the process by
notifying the application when it's safe to turn the receiver off.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:57:29 +02:00
Robert Lubos
842d4b220f net: lwm2m: Add option to register in UDP queue mode
Add Kconfig option to enable Queue Mode binding. With this option
enabled, the LWM2M client will register with `UQ` binding, instead of
`U`.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:57:29 +02:00
Marcin Niestroj
f5edc6db8f net: wifi: shell: drop explicit length parameter
Calculate length based on provided SSID string, so user does not have to
provide length explicitly over shell.

This patch also removes requirement of minimum 3 characters SSID, as
the shortest SSID can be even 1 character.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
2020-03-10 14:37:57 +02:00
Robert Lubos
24b6afaec2 net: openthread: Unify IS_ENABLED macro usage
Older OT code used preprocessor #if conditionals, while newer code
used IS_ENABLED macro. Unify the approach by switching to the latter
option.

Additinally, fix inclusion issue that came out after switching to
IS_ENABLED.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:36:24 +02:00
Robert Lubos
0c8d81c46f net: mqtt: Add write message handler
Add new transport handler for MQTT, with sendmsg-like functionality.
This allows TCP transport to send PUBLISH packets w/o fragmentation at
the TCP layer. Implement this new functionality for all existing
transports.

Fixes #22679

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:10:18 +02:00
Robert Lubos
5b58273a34 net: mqtt: Fix incorrect error code use in log
`mqtt_transport_write` failue was logged with `errno` value which is not
correct as the return value from the function is valid in this case.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:10:18 +02:00
Luuk Bosma
9587a271f6 net/ip/dhcpv4: Set Host Name in DHCP Request
This option specifies the name of the client.
See https://tools.ietf.org/html/rfc2132#section-3.14

This is useful for identification when looking in DHCP lease table.

Signed-off-by: Luuk Bosma <l.bosma@interay.com>
2020-03-10 14:10:01 +02:00
Göran Weinholt
091f630014 net: ppp: ipcp: negotiate DNS servers and optionally use them
We now negotiate DNS servers in the IPCP configuration. This has been
observed to speed up the connection setup. The received DNS servers
are used by the DNS resolver library, but we leave it optional since
the static server list might be preferable.

Increase MAX_IPCP_OPTIONS to 4 so that we can nack all RFC 1877
options.

Signed-off-by: Göran Weinholt <goran.weinholt@endian.se>
2020-03-10 14:09:10 +02:00
Göran Weinholt
eef8e67ea7 net: ppp: ipcp: do not require a peer address
It is not unusual that the peer does not provide an IP address in the
ipcp negotiation. But because ppp is a peer-to-peer protocol, we do
not actually need to know the peer's address to use the network.

Signed-off-by: Göran Weinholt <goran.weinholt@endian.se>
2020-03-10 14:09:10 +02:00
Robert Lubos
56566ad497 net: sockets: tls: Fix net_context referencing
TLS sockets did not increase refcount of a net_context running TCP,
which could lead to a crash upon TCP disconnection.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2020-03-10 14:08:20 +02:00
Jukka Rissanen
2d992baa42 net: ipv6: Add network interface to various debug prints
Useful when figuring out where the device is sending the
network packet.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2020-03-10 12:39:13 +02:00
Ravi kumar Veeramally
491367115d net: ipv4: Fix compilation errors
opts_len renamed to total_opts_len in previous changes.
But it's not replaced at one place.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2020-03-03 16:50:32 +02:00
Ravi kumar Veeramally
22f93b35ab net: ipv4: Fix parsing of IPv4 header options
If IPv4 header options has wrong options length
(e.g. options length is more that actual data),
then parser decrements opts_len without checking
actual data length. Which crashes the network stack.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2020-02-28 22:34:11 +02:00
Ravi kumar Veeramally
36b92fb7e6 net: ppp: Fix integer handling coverity issue
Store the time difference value in u32_t variable than
abs() value in signed variable.

Fixes #22912
Coverity CID: 208406

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2020-02-25 11:26:06 +01:00
Ravi kumar Veeramally
3ce7f89a8a net: pkt: Restore pkt cursor after cloning
net_pkt_clone() initializes the original packet cursor
and clone the packet. But it doesn't restore the cursor
back to original position.

Issue noticed when mDNS resolving fails when mdns responder
is also enabled.

net_conn_input(), in case of multicast packet, connection
handler clone the packet and deliver to matching handler.

Example case: dns_resolver and mdns_responder both register
handlers for 5353 port. After first clone original packet
cursor moved back to starting position. But first cloned
packet cursor is set properly. Second time cloning makes
cursor position to set to zero. Which makes second packet
handler header unpacking goes wrong.

Fixes #21970.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2020-02-21 16:49:14 +02:00
Ulf Magnusson
378d6b137a kconfig: Replace non-defconfig single-symbol 'if's with 'depends on'
Same deal as in commit eddd98f811 ("kconfig: Replace some single-symbol
'if's with 'depends on'"), for the remaining cases outside defconfig
files. See that commit for an explanation.

Will do the defconfigs separately in case there are any complaints
there.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-12 10:32:34 -06:00
Jukka Rissanen
856dd3dfdd net: ppp: ipcp: Remove dead code
If nack_idx > 0, then the count_rej must be > 0. This means that
the "code" variable will never be set to PPP_CONFIGURE_NACK.

Fixes #22436
Coverity-CID: 207975

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2020-02-12 17:41:03 +02:00
Jukka Rissanen
ba3c5deea9 net: stats: Add RX time statistics for packet sockets
If CONFIG_NET_PKT_RXTIME_STATS is set, then update the received
packet RX time for packet sockets (SOCK_RAW). This was already
working for normal sockets but the statistics update was missing
from SOCK_RAW.

Fixes #22489

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2020-02-12 17:33:54 +02:00
Michael Scott
309da27394 net: config: init: fix NET_NATIVE=n behavior
commit e3dc05f14d ("net: config: Wait network interface to come up")
introduced check_interface() function, which accidentally has 2
different signatures depending on CONFIG_NET_NATIVE selection.

Let's fix the second signature to be correct.

Fixes: https://github.com/zephyrproject-rtos/zephyr/issues/22693

Signed-off-by: Michael Scott <mike@foundries.io>
2020-02-10 23:31:05 +02:00
Inbar Anson Bratspiess
827f6f1714 net: socket: Release fd on failure in accept()
The zsock_accept_ctx() calls z_reserve_fd() on entry but fails
to call z_free_fd() on failure. This will leak the allocated
socket descriptor.

Fixes #22366

Signed-off-by: Inbar Anson Bratspiess <inbar.anson.bratspiess@330plus.net>
2020-02-10 12:33:22 +02:00
Ulf Magnusson
eddd98f811 kconfig: Replace some single-symbol 'if's with 'depends on'
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.

There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.

The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).

Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.

Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.

Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.

The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.

(Everything above is true for choices, menus, and comments as well.)

Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 08:32:42 -05:00