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Emma Stensland 278736016e F-2115 F-3693 F-3890 F-3895 F-5608 F-5609 F-5613 F-6290 F-6537 F-6538: fix RPi-Pico, TOPPERS, PSK, lwIP, Mynewt, uTasker, wolfIP, and STSafe examples issues 2026-07-13 17:29:28 -06:00
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README.md add initial native lwip example (#303) 2022-04-05 11:08:15 -04:00
example-lwip-native-echoclient.c F-2115 F-3693 F-3890 F-3895 F-5608 F-5609 F-5613 F-6290 F-6537 F-6538: fix RPi-Pico, TOPPERS, PSK, lwIP, Mynewt, uTasker, wolfIP, and STSafe examples issues 2026-07-13 17:29:28 -06:00

README.md

LWIP Native Example

Assumes there is an existing STM project with native LwIP support. wolfSSL needs to be compiled with the macro WOLFSSL_LWIP_NATIVE

The main function to call in the example code is tls_echoclient_connect();

Macros in lwipopts.h were also adjusted to better handle TLS packets, which can be as large as 16k. The macros adjusted were:

  • MEM_SIZE(16*1024)
  • MEMP_NUM_PBUF (10 -> 20)
  • PBUF_POOL_SIZE (8 -> 9)
  • PBUF_POOL_BUFSIZE (512 -> 2048)
  • TCP_WND (2TCP_MSS -> 11TCP_MSS)

To start up a server for the example client to connect to use the bundled wolfSSL example server on a desktop:

cd wolfssl
./configure && make
./examples/server/server -b -d -p 11111 -c ./certs/server-ecc.pem -k ./certs/ecc-key.pem -i