From 43d956fa65c66629f335b7bb7d4e190da5e99da7 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Thu, 9 Jul 2015 18:24:24 +0100 Subject: [PATCH] Demo server using SSL_CTX_config Reviewed-by: Richard Levitte --- demos/bio/cmod.cnf | 24 +++++++++++ demos/bio/server-cmod.c | 94 +++++++++++++++++++++++++++++++++++++++++ demos/bio/server-ec.pem | 17 ++++++++ 3 files changed, 135 insertions(+) create mode 100644 demos/bio/cmod.cnf create mode 100644 demos/bio/server-cmod.c create mode 100644 demos/bio/server-ec.pem diff --git a/demos/bio/cmod.cnf b/demos/bio/cmod.cnf new file mode 100644 index 0000000000..4c45dfb781 --- /dev/null +++ b/demos/bio/cmod.cnf @@ -0,0 +1,24 @@ +# Example config module configuration + +# Name supplied by application to CONF_modules_load_file +# and section containing configuration +testapp = test_sect + +[test_sect] +# list of confuration modules + +# SSL configuration module +ssl_conf = ssl_sect + +[ssl_sect] +# list of SSL configurations +server = server_sect + +[server_sect] +# Only support 3 curves +Curves = P-521:P-384:P-256 +# Restricted signature algorithms +SignatureAlgorithms = RSA+SHA512:ECDSA+SHA512 +# Certificates and keys +RSA.Certificate=server.pem +ECDSA.Certificate=server-ec.pem diff --git a/demos/bio/server-cmod.c b/demos/bio/server-cmod.c new file mode 100644 index 0000000000..4f0b0c0f05 --- /dev/null +++ b/demos/bio/server-cmod.c @@ -0,0 +1,94 @@ +/* NOCW */ +/* demos/bio/server-cmod.c */ + +/* + * A minimal TLS server it ses SSL_CTX_config and a configuration file to + * set most server parameters. + */ + +#include +#include +#include +#include +#include + +int main(int argc, char *argv[]) +{ + unsigned char buf[512]; + char *port = "*:4433"; + BIO *in = NULL; + BIO *ssl_bio, *tmp; + SSL_CTX *ctx; + int ret = 1, i; + + SSL_load_error_strings(); + + /* Add ciphers and message digests */ + OpenSSL_add_ssl_algorithms(); + + if (CONF_modules_load_file("cmod.cnf", "testapp", 0) <= 0) { + fprintf(stderr, "Error processing config file\n"); + goto err; + } + + ctx = SSL_CTX_new(TLS_server_method()); + + if (SSL_CTX_config(ctx, "server") == 0) { + fprintf(stderr, "Error configuring server.\n"); + goto err; + } + + /* Setup server side SSL bio */ + ssl_bio = BIO_new_ssl(ctx, 0); + + if ((in = BIO_new_accept(port)) == NULL) + goto err; + + /* + * This means that when a new connection is accepted on 'in', The ssl_bio + * will be 'duplicated' and have the new socket BIO push into it. + * Basically it means the SSL BIO will be automatically setup + */ + BIO_set_accept_bios(in, ssl_bio); + + again: + /* + * The first call will setup the accept socket, and the second will get a + * socket. In this loop, the first actual accept will occur in the + * BIO_read() function. + */ + + if (BIO_do_accept(in) <= 0) + goto err; + + for (;;) { + i = BIO_read(in, buf, sizeof(buf)); + if (i == 0) { + /* + * If we have finished, remove the underlying BIO stack so the + * next time we call any function for this BIO, it will attempt + * to do an accept + */ + printf("Done\n"); + tmp = BIO_pop(in); + BIO_free_all(tmp); + goto again; + } + if (i < 0) { + if (BIO_should_retry(in)) + continue; + goto err; + } + fwrite(buf, 1, i, stdout); + fflush(stdout); + } + + ret = 0; + err: + if (ret) { + ERR_print_errors_fp(stderr); + } + BIO_free(in); + exit(ret); + return (!ret); +} diff --git a/demos/bio/server-ec.pem b/demos/bio/server-ec.pem new file mode 100644 index 0000000000..a13fdc7e28 --- /dev/null +++ b/demos/bio/server-ec.pem @@ -0,0 +1,17 @@ +-----BEGIN PRIVATE KEY----- +MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg/5kYU3PUlHwfdjEN +lC1xTZEx3o55RgtSOuOCTryDfomhRANCAARW/qUFg+qZzjcFWrST4bmkRCFu8/rn +KTHjW2vpBXYGXKDn4AbAfYXYhM9J7v1HkkrZBPPGx53eVzs61/Pgr6Rc +-----END PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIBsTCCAVegAwIBAgIJALChLe0vZzgoMAoGCCqGSM49BAMCMDUxHzAdBgNVBAsM +FlRlc3QgRUNEU0EgQ2VydGlmaWNhdGUxEjAQBgNVBAMMCWxvY2FsaG9zdDAeFw0x +NTEyMjIxNDUxMDRaFw00NDAxMDQxNDUxMDRaMDUxHzAdBgNVBAsMFlRlc3QgRUNE +U0EgQ2VydGlmaWNhdGUxEjAQBgNVBAMMCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG +CCqGSM49AwEHA0IABFb+pQWD6pnONwVatJPhuaREIW7z+ucpMeNba+kFdgZcoOfg +BsB9hdiEz0nu/UeSStkE88bHnd5XOzrX8+CvpFyjUDBOMB0GA1UdDgQWBBROhkTJ +lsm8Qd8pEgrrapccfFY5gjAfBgNVHSMEGDAWgBROhkTJlsm8Qd8pEgrrapccfFY5 +gjAMBgNVHRMEBTADAQH/MAoGCCqGSM49BAMCA0gAMEUCIFhyU/WZRcihilTpwFVm +fly1JhwisouiZjLnPkRYZVzHAiEAgqxXfRQl1/phnEgO9gRcv2nFp9xvJiDgKPse +VktDYjE= +-----END CERTIFICATE----- -- 2.40.0