wolfssl-examples/custom-io-callbacks

This is an example to demonstrate how the custom IO callbacks can be used to facilitate a TLS connection using any medium. Here we chose the medium of files.

Other mediums might be: USB Serial connection Bluetooth RFID Wifi Ethernet

To name a few.

These examples use the wolfSSL Custom IO Callbacks to read and write to the file system and perform a successful handshake.

The configuration used for these examples was: ./configure --enable-debug

Debug was enabled in case a user wishes to use the verbose flag to see what is happening in real time:

Usage examples:

From the file-server directory: ./start-server ./start-server -v ./start-server -verbose

From the file-client directory: ./start-client ./start-client -v ./start-client -verbose

(-v and -verbose accomplish the same thing)

SCRIPTS: The scripts provided attempt to make testing easier.

file-server/check.sh - starts the server in a background shell and runs the client USAGE: ./check.sh ./check.sh -v ./check.sh -verbose

file-client/clean-io-files.sh - If something happens and there is leftover junk in the io files run this script to quickly cleanup before next round of testing. USAGE: ./clean-io-files.sh