Merged lwip 2.0.2 stable path 1 from https://github.com/ARMmbed/lwip
Patch allows lwip to do autonomous address configuration for prefixes
that are not on-link.
ad7cf16 Add David's IPv6 improvements to CHANGELOG
af9d783 Fix (bogus) MSVC 2010 warning about uninitialized variable usage in ip6.c It's wrong because the variables are initialized during first loop iteration due to best_addr == NULL
68358d7 nd6: cull destination cache on router removal
7323fa1 nd6: some work on basic RFC 4861 compliance
10eb2ca ip6: improve source address selection
6c06ecd ip6/nd6: route using on-link prefixes, not addresses
9f1714d nd6: improve router selection
2486b41 netif: more ip6 state changes invoke status callback
519d809 nd6: fix Duplicate Address Detection
9f3c6dd nd6: check link status before sending packets
8c761a2 nd6: improve address autoconfiguration support
PPP is running close to the edge of its default thread stack size of 512 bytes. When it experiences an FCS error on the incoming data (for example. caused by character loss when the incoming serial rate is too high for it to process in time) it performs some additional work which overruns the thread's stack, hitting the OS "stack underflow" check. Increasing the PPP stack size to 768 bytes resolves this problem.
A message of "Failed to close socket" was always being printed, not
just when the socket failed to close. This patch fixes this in
addition to a simplifying the call to a thread safe printf.
The function _eth_arch_low_level_input() is meant to pass data into
LWIP and to prepare the ethernet buffers to receive more data.
If the LWIP heap is empty and the call to pbuf_alloc() in
_eth_arch_low_level_input returns null, the ethernet receive buffers
are not updated to receive data. Because of this the ethernet RX
interrupt will not fire. Since the RX interrupt is the only thing that
triggers a call to _eth_arch_low_level_input(), the receive buffers
will never get cleared, and the device stops receiving data.
To prevent this from happening, this patch ensures that the function
_eth_arch_low_level_input() clears the receive buffers even if a new
pbuf for the data couldn't be allocated.
This issue can be reproduce by running the test
"features-feature_lwip-tests-mbedmicro-net-udp_echo_parallel"
and on the same machine running the below python script to flood the
device with UDP broadcast packets:
MY_IP = #ADD your local IP here
from socket import *
s = socket(AF_INET, SOCK_DGRAM)
s.bind((MY_IP, 1234))
s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
for _ in range(1000):
s.sendto("test data", ('255.255.255.255', 1234))
print("Message sent")
lwipopts_conf.h is used by target dependent Ethernet drivers for
configuring various parameters.
By default, Ethernet is enabled and in this case lwipopts_conf.h
will be included.
In case of PPP being enabled, it is desirable to not pull in any Ethernet
related code.
This creates a macro for the UUID length used by Greentea. This cuts
down on the use of "magic numbers" in test cases that use
the GREENTEA_SETUP_UUID function.
This is a workaround for IAR's lack of flexibility with memory regions.
Otherwise these tests would use very little heap and be mostly global
allocations.
This matches the timeout used in linux:
https://linux.die.net/man/5/dhclient.conf
This resolves several issues noticed during testing when we
have a very large number of devices that try to get an IP address
around the same time.
Before, the UDP test was very strict on the number of packets it would
try to match before failing. Now it will keep trying for the whole test
to get enough passing packets. It also includes the test's UUID so you
can validate which packets are being received.
Mika Leppänen
Jimmy Brisson
Christopher Haster
ccli8
cyliangtw
Martin Kojtal
Anna Bridge
Rob Meades
Deepika
Sam Grove
Brian Daniels
Yuguo Zou
Russ Butler
Hasnain Virk