* Update LWIP from SDK
* mbedTLS integration
* Fix argument type in dbg_printf (#1624)
* Migrate to espressif’s download center (#1604)
* Fixed BBS links to firmware
* Adjust net module docs with mbedTLS info
* Remove unrelevant axTLS notice
The original code did not deal with UDP binding failures, this new code
does one random port attempt and then sets port to 0 to get 'OS
default' behaviour, and ASSERTs that that has to work.
Patch also moves the local UDP port range definition to udp.h from
udp.c.
This addresses the issue where a server would otherwise reject a valid
connection attempt from a rebooted node, due to the server thinking that
packet belonged to a recently closed session. By starting off the local
TCP port numbers at random* points each boot the risk of port reuse
across a reboot is significantly reduced.
*) As random as can be had via the lower 12 bits of the ccounter.
Arnim Läuger
Yury Popov
Marcel Stör
bert hubert
Johny Mattsson
Johny Mattsson
Vowstar
Robert Foss
HuangRui
Santiago
funshine