111 lines
2.6 KiB
ReStructuredText
111 lines
2.6 KiB
ReStructuredText
.. _mbedtsl-delsserver-sample:
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mbedTLS DTLS sample server
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############################
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Overview
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********
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This sample code shows a simple DTLS server using mbedTLS on top of Zephyr.
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Building and Running
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********************
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Follow the steps for testing :ref:`networking with Qemu <networking_with_qemu>`.
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In the application directory type:
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.. code-block:: console
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$make run
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.. code-block:: console
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. Seeding the random number generator... ok
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. Setting up the DTLS structure... ok
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. Setting connection
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ok
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. Setting up ecjpake password ... ok
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. Performing the TLS handshake...
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In other terminal window, obtain the mbed TLS code from:
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https://tls.mbed.org/download/start/mbedtls-2.3.0-apache.tgz
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and put it in a well known directory, in your Linux machine, this will be your
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client.
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Move to that directory and compile the mbedTLS on your host machine
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.. code-block:: console
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tar -xvzf mbedtls-2.3.0-apache.tgz
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cd mbedtls-2.3.0
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CFLAGS="-I$PWD/configs -DMBEDTLS_CONFIG_FILE='<config-thread.h>'" make
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./programs/ssl/ssl_client2 server_addr=192.0.2.1 dtls=1 ecjpake_pw=passwd
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You will get the following output:
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.. code-block:: console
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. Seeding the random number generator... ok
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. Connecting to udp/192.0.2.1/4433... ok
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. Setting up the SSL/TLS structure... ok
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. Performing the SSL/TLS handshake... ok
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[ Protocol is DTLSv1.2 ]
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[ Ciphersuite is TLS-ECJPAKE-WITH-AES-128-CCM-8 ]
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[ Record expansion is 29 ]
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[ Maximum fragment length is 16384 ]
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> Write to server: 34 bytes written in 1 fragments
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GET / HTTP/1.0
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Extra-header:
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< Read from server: 34 bytes read
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GET / HTTP/1.0
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Extra-header:
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. Closing the connection... done
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From the app directory type the screen should display
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.. code-block:: console
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. Performing the TLS handshake... hello verification requested
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. Setting up ecjpake password ... ok
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. Performing the TLS handshake... ok
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< Read from client: 34 bytes read
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GET / HTTP/1.0
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Extra-header:
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> Write to client: 34 bytes written
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GET / HTTP/1.0
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Extra-header:
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< Read from client: connection was closed gracefully
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. Closing the connection... done
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. Setting up ecjpake password ... ok
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. Performing the TLS handshake...
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If trying to use IPv6 edit the file prj_qemu_x86.conf and chage the line from
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CONFIG_NET_IPV6=n to CONFIG_NET_IPV6=y
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And run the client on mbedTLS as
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.. code-block:: console
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./programs/ssl/ssl_client2 server_addr=2001:db8::1 dtls=1 ecjpake_pw=passwd
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If the server does not receive the messages, restart the app and try to connect
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the client again.
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References
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**********
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* https://tls.mbed.org/
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