Tobias Frauenschläger
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Add WOLFSSL_TLS_READ_AHEAD (--enable-readahead), toggled at runtime via wolfSSL_set_read_ahead(). When enabled, the record-header read pulls a full record in one recv() so the body arrives without a second syscall. The receive window is configurable with wolfSSL_CTX/SSL_set_default_read_buffer_len() (OpenSSL-compatible): 0 keeps the one-record default, a larger value coalesces several records per recv(), a smaller value caps the per-connection buffer footprint. Records exceeding the window are still received correctly, the buffer grows on demand and is reallocated back down to the window afterwards so the retained footprint stays bounded. Includes docs, API tests, and a benchmark toggle.
wolfSSL examples directory
client and server
These directories contain a client (client.c) and server (server.c) that utilize a variety of the wolfSSL library's capabilities. The manner in which both programs operate can depend on the configure or can be specified at run-time depending on the end goal. Both applications contain testing as well as benchmarking code.
Compile
./configure
make
Usage
./examples/server/server
./examples/client/client
Run ./examples/server/server -h and ./examples/client/client -h for usage details.
For simpler wolfSSL TLS server/client examples, visit https://github.com/wolfSSL/wolfssl-examples/tree/master/tls
echoclient and echoserver
These directories contain a client (echoclient.c) and server (echoserver.c) that establish a connection encrypted by wolfSSL. Like the names indicate, once the connection has been established any messages entered into echoclient are sent to and displayed on the echoserver and are then echoed back to echoclient. The nature of the encryption, as well as additional behavior of the two programs, depends on how wolfSSL was configured ( DTLS enabled/disabled, Filesystem enabled/disabled, etc ... ).
Compile
./configure
make
Usage
./examples/echoserver/echoserver
./examples/echoclient/echoclient
benchmark
The benchmark directory offers an application that can help you grasp just how well wolfSSL's TLS functionality is performing on your local machine.
Compile
./configure
make
Usage
./examples/benchmark/tls_bench
The tls_bench executable can also be compiled separately with gcc -lwolfssl -lpthread -o tls_bench tls_bench.c.
Run ./examples/benchmark/tls_bench -? for usage details.
sctp
This directory contains servers and clients that demonstrate wolfSSL's DTLS-SCTP support.
Compile
./configure --enable-sctp
make
Usage
./examples/sctp/sctp-server
./examples/sctp/sctp-client
and
./examples/sctp/sctp-server-dtls
./examples/sctp/sctp-client-dtls
configs
This directory contains example wolfSSL configuration file templates for use when autoconf is not available, such as building with a custom IDE.
See configs/README.md for more details.
asn1
This directory contains an example that prints the ASN.1 data of a BER/DER or PEM encoded file. Configure wolfSSL with --enable-asn-print.
pem
This directory contains an example of converting to/from PEM and DER. Configure wolfSSL with --enable-coding