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wolfssl-examples/pkcs11/server-tls-pkcs11-ecc.c

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/* server-tls-pkcs11-ecc.c
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* the usual suspects */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
/* socket includes */
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
/* wolfSSL */
#include <wolfssl/options.h>
#include <wolfssl/ssl.h>
#include <wolfssl/wolfcrypt/wc_pkcs11.h>
#define DEFAULT_PORT 11111
#define CERT_FILE "../certs/server-ecc.pem"
#define PRIV_KEY_ID {0x00, 0x02}
#ifndef WOLFCRYPT_ONLY
int server_tls(int devId, Pkcs11Token* token, const char *certLabel,
const byte *certId, word32 certIdLen, const byte *privKeyId,
word32 privKeyIdLen)
{
int sockfd;
int connd;
struct sockaddr_in servAddr;
struct sockaddr_in clientAddr;
socklen_t size = sizeof(clientAddr);
char buff[256];
size_t len;
int shutdown = 0;
int ret;
const char* reply = "I hear ya fa shizzle!\n";
/* declare wolfSSL objects */
WOLFSSL_CTX* ctx;
WOLFSSL* ssl;
/* Initialize wolfSSL */
wolfSSL_Init();
/* Create a socket that uses an internet IPv4 address,
* Sets the socket to be stream based (TCP),
* 0 means choose the default protocol. */
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
fprintf(stderr, "ERROR: failed to create the socket\n");
return -1;
}
/* Create and initialize WOLFSSL_CTX */
if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_server_method())) == NULL) {
fprintf(stderr, "ERROR: failed to create WOLFSSL_CTX\n");
return -1;
}
if (wolfSSL_CTX_SetDevId(ctx, devId) != WOLFSSL_SUCCESS) {
fprintf(stderr, "ERROR: failed to create WOLFSSL_CTX\n");
return -1;
}
/* Load server certificates into WOLFSSL_CTX */
if (certLabel != NULL) {
if (wolfSSL_CTX_use_certificate_label(ctx, certLabel, devId)
!= SSL_SUCCESS) {
fprintf(stderr, "ERROR: failed to load certificate by label: %s\n",
certLabel);
return -1;
}
}
else if (certId != NULL) {
if (wolfSSL_CTX_use_certificate_id(ctx, certId, certIdLen, devId)
!= SSL_SUCCESS) {
fprintf(stderr, "ERROR: failed to load certificate by id: %s\n",
certId);
return -1;
}
}
else {
if (wolfSSL_CTX_use_certificate_file(ctx, CERT_FILE, WOLFSSL_FILETYPE_PEM)
!= SSL_SUCCESS) {
fprintf(stderr, "ERROR: failed to load %s, please check the file.\n",
CERT_FILE);
return -1;
}
}
/* Load server key into WOLFSSL_CTX */
if (wolfSSL_CTX_use_PrivateKey_id(ctx, privKeyId, privKeyIdLen, devId,
2048/8) != SSL_SUCCESS) {
fprintf(stderr, "ERROR: failed to set id.\n");
return -1;
}
/* Initialize the server address struct with zeros */
memset(&servAddr, 0, sizeof(servAddr));
/* Fill in the server address */
servAddr.sin_family = AF_INET; /* using IPv4 */
servAddr.sin_port = htons(DEFAULT_PORT); /* on DEFAULT_PORT */
servAddr.sin_addr.s_addr = INADDR_ANY; /* from anywhere */
/* Bind the server socket to our port */
if (bind(sockfd, (struct sockaddr*)&servAddr, sizeof(servAddr)) == -1) {
fprintf(stderr, "ERROR: failed to bind\n");
return -1;
}
/* Listen for a new connection, allow 5 pending connections */
if (listen(sockfd, 5) == -1) {
fprintf(stderr, "ERROR: failed to listen\n");
return -1;
}
/* Continue to accept clients until shutdown is issued */
while (!shutdown) {
printf("Waiting for a connection...\n");
/* Accept client connections */
if ((connd = accept(sockfd, (struct sockaddr*)&clientAddr, &size))
== -1) {
fprintf(stderr, "ERROR: failed to accept the connection\n\n");
return -1;
}
/* Create a WOLFSSL object */
if ((ret = wc_Pkcs11Token_Open(token, 1)) != 0) {
fprintf(stderr, "ERROR: failed to open session on token (%d)\n",
ret);
return -1;
}
/* Create a WOLFSSL object */
if ((ssl = wolfSSL_new(ctx)) == NULL) {
fprintf(stderr, "ERROR: failed to create WOLFSSL object\n");
return -1;
}
/* Attach wolfSSL to the socket */
wolfSSL_set_fd(ssl, connd);
/* Establish TLS connection */
ret = wolfSSL_accept(ssl);
if (ret != SSL_SUCCESS) {
fprintf(stderr, "wolfSSL_accept error = %d\n",
wolfSSL_get_error(ssl, ret));
return -1;
}
printf("Client connected successfully\n");
/* Read the client data into our buff array */
memset(buff, 0, sizeof(buff));
if (wolfSSL_read(ssl, buff, sizeof(buff)-1) == -1) {
fprintf(stderr, "ERROR: failed to read\n");
return -1;
}
/* Print to stdout any data the client sends */
printf("Client: %s\n", buff);
/* Check for server shutdown command */
if (strncmp(buff, "shutdown", 8) == 0) {
printf("Shutdown command issued!\n");
shutdown = 1;
}
/* Write our reply into buff */
memset(buff, 0, sizeof(buff));
memcpy(buff, reply, strlen(reply));
len = strnlen(buff, sizeof(buff));
/* Reply back to the client */
if (wolfSSL_write(ssl, buff, len) != len) {
fprintf(stderr, "ERROR: failed to write\n");
return -1;
}
/* Cleanup after this connection */
wolfSSL_free(ssl); /* Free the wolfSSL object */
wc_Pkcs11Token_Close(token);
close(connd); /* Close the connection to the client */
}
printf("Shutdown complete\n");
/* Cleanup and return */
wolfSSL_CTX_free(ctx); /* Free the wolfSSL context object */
wolfSSL_Cleanup(); /* Cleanup the wolfSSL environment */
close(sockfd); /* Close the socket listening for clients */
return 0; /* Return reporting a success */
}
#endif
static int string_matches(const char* arg, const char* str)
{
int len = (int)XSTRLEN(str) + 1;
return XSTRNCMP(arg, str, len) == 0;
}
static void Usage(void)
{
printf("server-tls-pkcs11\n");
printf("-? Help, print this usage\n");
printf("-lib <file> PKCS#11 library to test\n");
printf("-slot <num> Slot number to use\n");
printf("-tokenName <string> Token name\n");
printf("-userPin <string> User PIN\n");
printf("-privKeyId <string> Private key identifier\n");
printf("-certId <string> Certificate identifier\n");
printf("-certLabel <string> Certificate label\n");
}
int main(int argc, char* argv[])
{
int ret;
const char* library = NULL;
const char* tokenName = NULL;
const char* userPin = NULL;
const char* certLabel = NULL;
const byte* certId = NULL;
int certIdLen = 0;
Pkcs11Dev dev;
Pkcs11Token token;
int slotId = -1;
int devId = 1;
const unsigned char defaultPrivKeyId[] = PRIV_KEY_ID;
int privKeyIdLen = 2;
const byte *privKeyId = (const byte *)defaultPrivKeyId;
argc--;
argv++;
while (argc > 0) {
if (string_matches(*argv, "-?")) {
Usage();
return 0;
}
else if (string_matches(*argv, "-lib")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Library name not supplied\n");
return 1;
}
library = *argv;
}
else if (string_matches(*argv, "-slot")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Slot number not supplied\n");
return 1;
}
slotId = atoi(*argv);
}
else if (string_matches(*argv, "-tokenName")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Token name not supplied\n");
return 1;
}
tokenName = *argv;
}
else if (string_matches(*argv, "-userPin")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "User PIN not supplied\n");
return 1;
}
userPin = *argv;
}
else if (string_matches(*argv, "-privKeyId")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Private key identifier not supplied\n");
return 1;
}
privKeyId = (byte*)*argv;
privKeyIdLen = (int)strlen(*argv);
}
else if (string_matches(*argv, "-certId")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Certificate identifier not supplied\n");
return 1;
}
certId = (byte*)*argv;
certIdLen = (int)strlen(*argv);
}
else if (string_matches(*argv, "-certLabel")) {
argc--;
argv++;
if (argc == 0) {
fprintf(stderr, "Certificate label not supplied\n");
return 1;
}
certLabel = (char*)*argv;
}
else {
fprintf(stderr, "Unrecognized command line argument\n %s\n",
argv[0]);
Usage();
return 1;
}
argc--;
argv++;
}
if (library == NULL || tokenName == NULL) {
fprintf(stderr, "Error: missing arguments\n");
Usage();
return 1;
}
#if defined(DEBUG_WOLFSSL)
wolfSSL_Debugging_ON();
#endif
wolfCrypt_Init();
ret = wc_Pkcs11_Initialize(&dev, library, NULL);
if (ret != 0) {
fprintf(stderr, "Failed to initialize PKCS#11 library\n");
ret = 2;
}
if (ret == 0) {
ret = wc_Pkcs11Token_Init(&token, &dev, slotId, tokenName,
(byte*)userPin, userPin == NULL ? 0 : strlen(userPin));
if (ret != 0) {
fprintf(stderr, "Failed to initialize PKCS#11 token\n");
ret = 2;
}
if (ret == 0) {
ret = wc_CryptoDev_RegisterDevice(devId, wc_Pkcs11_CryptoDevCb,
&token);
if (ret != 0) {
fprintf(stderr, "Failed to register PKCS#11 token\n");
ret = 2;
}
if (ret == 0) {
#if !defined(WOLFCRYPT_ONLY)
ret = server_tls(devId, &token, certLabel, certId, certIdLen,
privKeyId, (word32)privKeyIdLen);
if (ret != 0)
ret = 1;
#endif
}
wc_Pkcs11Token_Final(&token);
}
wc_Pkcs11_Finalize(&dev);
}
wolfCrypt_Cleanup();
return ret;
}
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