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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "ssltestlib.h"
int create_ssl_ctx_pair(const SSL_METHOD *sm, const SSL_METHOD *cm,
SSL_CTX **sctx, SSL_CTX **cctx, char *certfile,
char *privkeyfile)
{
SSL_CTX *serverctx = NULL;
SSL_CTX *clientctx = NULL;
serverctx = SSL_CTX_new(sm);
clientctx = SSL_CTX_new(cm);
if (serverctx == NULL || clientctx == NULL) {
printf("Failed to create SSL_CTX\n");
goto err;
}
if (SSL_CTX_use_certificate_file(serverctx, certfile,
SSL_FILETYPE_PEM) <= 0) {
printf("Failed to load server certificate\n");
goto err;
}
if (SSL_CTX_use_PrivateKey_file(serverctx, privkeyfile,
SSL_FILETYPE_PEM) <= 0) {
printf("Failed to load server private key\n");
}
if (SSL_CTX_check_private_key(serverctx) <= 0) {
printf("Failed to check private key\n");
goto err;
}
*sctx = serverctx;
*cctx = clientctx;
return 1;
err:
SSL_CTX_free(serverctx);
SSL_CTX_free(clientctx);
return 0;
}
#define MAXLOOPS 100000
/*
* NOTE: Transfers control of the BIOs - this function will free them on error
*/
int create_ssl_connection(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)
{
int retc = -1, rets = -1, err, abortctr = 0;
SSL *serverssl, *clientssl;
BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;
serverssl = SSL_new(serverctx);
clientssl = SSL_new(clientctx);
if (serverssl == NULL || clientssl == NULL) {
printf("Failed to create SSL object\n");
goto error;
}
s_to_c_bio = BIO_new(BIO_s_mem());
c_to_s_bio = BIO_new(BIO_s_mem());
if (s_to_c_bio == NULL || c_to_s_bio == NULL) {
printf("Failed to create mem BIOs\n");
goto error;
}
if (s_to_c_fbio != NULL)
s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio);
if (c_to_s_fbio != NULL)
c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio);
if (s_to_c_bio == NULL || c_to_s_bio == NULL) {
printf("Failed to create chained BIOs\n");
goto error;
}
/* Set Non-blocking IO behaviour */
BIO_set_mem_eof_return(s_to_c_bio, -1);
BIO_set_mem_eof_return(c_to_s_bio, -1);
/* Up ref these as we are passing them to two SSL objects */
BIO_up_ref(s_to_c_bio);
BIO_up_ref(c_to_s_bio);
SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
/* BIOs will now be freed when SSL objects are freed */
s_to_c_bio = c_to_s_bio = NULL;
s_to_c_fbio = c_to_s_fbio = NULL;
do {
err = SSL_ERROR_WANT_WRITE;
while (retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
retc = SSL_connect(clientssl);
if (retc <= 0)
err = SSL_get_error(clientssl, retc);
}
if (retc <= 0 && err != SSL_ERROR_WANT_READ) {
printf("SSL_connect() failed %d, %d\n", retc, err);
goto error;
}
err = SSL_ERROR_WANT_WRITE;
while (rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
rets = SSL_accept(serverssl);
if (rets <= 0)
err = SSL_get_error(serverssl, rets);
}
if (rets <= 0 && err != SSL_ERROR_WANT_READ) {
printf("SSL_accept() failed %d, %d\n", retc, err);
goto error;
}
if (++abortctr == MAXLOOPS) {
printf("No progress made\n");
goto error;
}
} while (retc <=0 || rets <= 0);
*sssl = serverssl;
*cssl = clientssl;
return 1;
error:
SSL_free(serverssl);
SSL_free(clientssl);
BIO_free(s_to_c_bio);
BIO_free(c_to_s_bio);
BIO_free(s_to_c_fbio);
BIO_free(c_to_s_fbio);
return 0;
}
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