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anhuanhu
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Add in client examples that use PKCS11.
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‎pkcs11/client-tls-pkcs11-ecc.c‎

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/* client-tls-pkcs11.c
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*
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL. (formerly known as CyaSSL)
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* the usual suspects */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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/* socket includes */
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <unistd.h>
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/* wolfSSL */
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#include <wolfssl/options.h>
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#include <wolfssl/ssl.h>
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#include <wolfssl/wolfcrypt/wc_pkcs11.h>
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#define DEFAULT_PORT 11111
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#define CA_FILE "../certs/ca-ecc-cert.pem"
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int client_tls(int devId, Pkcs11Token* token)
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{
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int sockfd;
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struct sockaddr_in servAddr;
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socklen_t size = sizeof(servAddr);
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char buff[256];
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size_t len;
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int shutdown = 0;
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int ret;
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/* declare wolfSSL objects */
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WOLFSSL_CTX* ctx = NULL;
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WOLFSSL* ssl = NULL;
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WOLFSSL_CIPHER* cipher;
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/* Initialize wolfSSL */
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wolfSSL_Init();
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/* Create a socket that uses an internet IPv4 address,
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* Sets the socket to be stream based (TCP),
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* 0 means choose the default protocol. */
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if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
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fprintf(stderr, "ERROR: failed to create the socket\n");
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return -1;
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}
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/* Initialize the server address struct with zeros */
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memset(&servAddr, 0, sizeof(servAddr));
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/* Fill in the server address */
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servAddr.sin_family = AF_INET; /* using IPv4 */
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servAddr.sin_port = htons(DEFAULT_PORT); /* on DEFAULT_PORT */
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/* IPv4 127.0.0.1 */
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if (inet_pton(AF_INET, "127.0.0.1", &servAddr.sin_addr) != 1) {
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fprintf(stderr, "ERROR: invalid address\n");
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ret = -1;
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goto exit;
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}
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/* Connect to the server */
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if ((ret = connect(sockfd, (struct sockaddr*) &servAddr, sizeof(servAddr)))
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== -1) {
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fprintf(stderr, "ERROR: failed to connect\n");
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goto exit;
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}
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#if 0
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wolfSSL_Debugging_ON();
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#endif
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/* Initialize wolfSSL */
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if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method())) == NULL) {
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fprintf(stderr, "ERROR: failed to create WOLFSSL_CTX\n");
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return -1;
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}
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/* Set devId associated with the PKCS11 device. */
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if (wolfSSL_CTX_SetDevId(ctx, devId) != WOLFSSL_SUCCESS) {
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fprintf(stderr, "ERROR: failed to create WOLFSSL_CTX\n");
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return -1;
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}
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/* Load CA certificate into WOLFSSL_CTX for validating peer */
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if ((ret = wolfSSL_CTX_load_verify_locations(ctx, CA_FILE, NULL))
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!= WOLFSSL_SUCCESS) {
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fprintf(stderr, "ERROR: failed to load %s, please check the file.\n",
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CA_FILE);
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goto exit;
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}
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/* validate peer certificate */
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wolfSSL_CTX_set_verify(ctx, WOLFSSL_VERIFY_PEER, NULL);
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/* Open the PKCS11 token. */
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if ((ret = wc_Pkcs11Token_Open(token, 1)) != 0) {
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fprintf(stderr, "ERROR: failed to open session on token (%d)\n", ret);
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return -1;
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}
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/* Create a WOLFSSL object */
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if ((ssl = wolfSSL_new(ctx)) == NULL) {
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fprintf(stderr, "ERROR: failed to create WOLFSSL object\n");
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return -1;
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}
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/* Attach wolfSSL to the socket */
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if ((ret = wolfSSL_set_fd(ssl, sockfd)) != WOLFSSL_SUCCESS) {
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fprintf(stderr, "ERROR: Failed to set the file descriptor\n");
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goto exit;
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}
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/* Connect to wolfSSL on the server side */
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if ((ret = wolfSSL_connect(ssl)) != WOLFSSL_SUCCESS) {
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fprintf(stderr, "ERROR: failed to connect to wolfSSL\n");
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goto exit;
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}
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cipher = wolfSSL_get_current_cipher(ssl);
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printf("SSL cipher suite is %s\n", wolfSSL_CIPHER_get_name(cipher));
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/* Get a message for the server from stdin */
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printf("Message for server: ");
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memset(buff, 0, sizeof(buff));
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if (fgets(buff, sizeof(buff), stdin) == NULL) {
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fprintf(stderr, "ERROR: failed to get message for server\n");
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ret = -1;
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goto exit;
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}
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len = strnlen(buff, sizeof(buff));
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/* Send the message to the server */
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if ((ret = wolfSSL_write(ssl, buff, len)) != len) {
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fprintf(stderr, "ERROR: failed to write entire message\n");
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fprintf(stderr, "%d bytes of %d bytes were sent", ret, (int) len);
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goto exit;
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}
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/* Read the server data into our buff array */
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memset(buff, 0, sizeof(buff));
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if ((ret = wolfSSL_read(ssl, buff, sizeof(buff)-1)) == -1) {
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fprintf(stderr, "ERROR: failed to read\n");
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goto exit;
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}
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/* Print to stdout any data the server sends */
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printf("Server: %s\n", buff);
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ret = 0; /* return success */
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exit:
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/* Cleanup after this connection */
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wolfSSL_free(ssl);
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wc_Pkcs11Token_Close(token);
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wolfSSL_CTX_free(ctx);
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if (sockfd != SOCKET_INVALID)
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close(sockfd);
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return ret;
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}
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int main(int argc, char* argv[])
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{
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int ret;
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const char* library;
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const char* slot;
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const char* tokenName;
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const char* userPin;
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Pkcs11Dev dev;
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Pkcs11Token token;
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int slotId;
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int devId = 1;
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if (argc != 4 && argc != 5) {
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fprintf(stderr,
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"Usage: server_tls_pkcs11 <libname> <slot> <tokenname> [userpin]\n");
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return 1;
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}
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library = argv[1];
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slot = argv[2];
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tokenName = argv[3];
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userPin = (argc == 4) ? NULL : argv[4];
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slotId = atoi(slot);
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#if defined(DEBUG_WOLFSSL)
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wolfSSL_Debugging_ON();
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#endif
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wolfCrypt_Init();
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ret = wc_Pkcs11_Initialize(&dev, library, NULL);
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if (ret != 0) {
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fprintf(stderr, "Failed to initialize PKCS#11 library\n");
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ret = 2;
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}
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if (ret == 0) {
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ret = wc_Pkcs11Token_Init(&token, &dev, slotId, tokenName,
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(byte*)userPin, userPin == NULL ? 0 : strlen(userPin));
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if (ret != 0) {
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fprintf(stderr, "Failed to initialize PKCS#11 token\n");
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ret = 2;
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}
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if (ret == 0) {
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ret = wc_CryptoDev_RegisterDevice(devId, wc_Pkcs11_CryptoDevCb,
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&token);
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if (ret != 0) {
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fprintf(stderr, "Failed to register PKCS#11 token\n");
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ret = 2;
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}
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if (ret == 0) {
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ret = client_tls(devId, &token);
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if (ret != 0)
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ret = 1;
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}
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wc_Pkcs11Token_Final(&token);
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}
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wc_Pkcs11_Finalize(&dev);
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}
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wolfCrypt_Cleanup();
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return ret;
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}
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