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Merge pull request #370 from tamasan238/get-and-set-cipher 

support get/set cipher
pull/464/head
Takashi Kojo 2024-10-04 13:51:53 +09:00 committed by GitHub
parent 2f67b03800 1a5f494a83
commit aa1818ce35
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 517 additions and 0 deletions
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237
tls-options/client-tls-cipher.c 100644
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@ -0,0 +1,237 @@
/* client-tls.c
*
* Copyright (C) 2006-2023 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/test.h>
#define DEFAULT_PORT 11111
#define ERR_MSG_LEN 80
#define CERT_FILE "../certs/ca-cert.pem"
static void ShowCiphers(void)
{
static char ciphers[WOLFSSL_CIPHER_LIST_MAX_SIZE];
int ret = wolfSSL_get_ciphers(ciphers, (int)sizeof(ciphers));
if (ret == WOLFSSL_SUCCESS) {
printf("%s\n", ciphers);
}
}
int main(int argc, char** argv)
{
int sockfd;
struct sockaddr_in servAddr;
char buff[256];
size_t len;
int ret;
int err;
char buffer[ERR_MSG_LEN];
char* cipherList = NULL;
/* declare wolfSSL objects */
WOLFSSL_CTX* ctx;
WOLFSSL* ssl = NULL;
/* Check for proper calling convention */
switch (argc) {
case 2:
if (XSTRCMP("-e", argv[1]) == 0) {
ShowCiphers();
return 0;
}
break;
case 4:
if (XSTRCMP("-l", argv[2]) == 0) {
cipherList = argv[3];
}
break;
default:
printf("usage:\n");
printf("\t%s <IPv4 address>\n", argv[0]);
printf("\t%s -e\n", argv[0]);
printf("\t%s <IPv4 address> -l <Cipher suite>\n", argv[0]);
return 0;
}
/* 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) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto end;
}
/* 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 */
/* Get the server IPv4 address from the command line call */
if (inet_pton(AF_INET, argv[1], &servAddr.sin_addr) != 1) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto end;
}
/* Connect to the server */
if ((ret = connect(sockfd, (struct sockaddr*) &servAddr, sizeof(servAddr)))
== -1) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto end;
}
/*---------------------------------*/
/* Start of wolfSSL initialization and configuration */
/*---------------------------------*/
/* Initialize wolfSSL */
if ((ret = wolfSSL_Init()) != WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto socket_cleanup;
}
/* Create and initialize WOLFSSL_CTX */
if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method())) == NULL) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto socket_cleanup;
}
/* Set cipher suite */
if (cipherList != NULL) {
if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto ctx_cleanup;
}
}
/* Load client certificates into WOLFSSL_CTX */
if ((ret = wolfSSL_CTX_load_verify_locations(ctx, CERT_FILE, NULL))
!= SSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto ctx_cleanup;
}
/* Create a WOLFSSL object */
if ((ssl = wolfSSL_new(ctx)) == NULL) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto ctx_cleanup;
}
/* Attach wolfSSL to the socket */
if ((ret = wolfSSL_set_fd(ssl, sockfd)) != WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto cleanup;
}
/* Connect to wolfSSL on the server side */
if ((ret = wolfSSL_connect(ssl)) != SSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto cleanup;
}
/* Show Description of cipher suite */
static int lng_index = 0;
showPeerEx(ssl, lng_index);
/* Get a message for the server from stdin */
printf("Message for server: ");
memset(buff, 0, sizeof(buff));
if (fgets(buff, sizeof(buff), stdin) == NULL) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto cleanup;
}
len = strnlen(buff, sizeof(buff));
/* Send the message to the server */
if ((ret = wolfSSL_write(ssl, buff, len)) != len) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto cleanup;
}
/* Read the server data into our buff array */
memset(buff, 0, sizeof(buff));
if ((ret = wolfSSL_read(ssl, buff, sizeof(buff)-1)) == -1) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto cleanup;
}
/* Print to stdout any data the server sends */
printf("Server: %s\n", buff);
/* Bidirectional shutdown */
while (wolfSSL_shutdown(ssl) == SSL_SHUTDOWN_NOT_DONE) {
printf("Shutdown not complete\n");
}
printf("Shutdown complete\n");
ret = 0;
/* Cleanup and return */
cleanup:
wolfSSL_free(ssl); /* Free the wolfSSL object */
ctx_cleanup:
wolfSSL_CTX_free(ctx); /* Free the wolfSSL context object */
wolfSSL_Cleanup(); /* Cleanup the wolfSSL environment */
socket_cleanup:
close(sockfd); /* Close the connection to the server */
end:
return ret; /* Return reporting a success */
}

280
tls-options/server-tls-cipher.c 100644
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@ -0,0 +1,280 @@
/* server-tls.c
*
* Copyright (C) 2006-2023 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/test.h>
#define DEFAULT_PORT 11111
#define ERR_MSG_LEN 80
#define CERT_FILE "../certs/server-cert.pem"
#define KEY_FILE "../certs/server-key.pem"
static void ShowCiphers(void)
{
static char ciphers[WOLFSSL_CIPHER_LIST_MAX_SIZE];
int ret = wolfSSL_get_ciphers(ciphers, (int)sizeof(ciphers));
if (ret == WOLFSSL_SUCCESS) {
printf("%s\n", ciphers);
}
}
int main(int argc, char **argv)
{
int sockfd = SOCKET_INVALID;
int connd = SOCKET_INVALID;
struct sockaddr_in servAddr;
struct sockaddr_in clientAddr;
socklen_t size = sizeof(clientAddr);
char buff[256];
size_t len;
int shutdown = 0;
int ret;
int err;
const char* reply = "I hear ya fa shizzle!\n";
char buffer[ERR_MSG_LEN];
char* cipherList = NULL;
/* declare wolfSSL objects */
WOLFSSL_CTX* ctx = NULL;
WOLFSSL* ssl = NULL;
/* Initialize wolfSSL */
wolfSSL_Init();
/* Check for proper calling convention */
switch (argc) {
case 1:
break;
case 2:
if (XSTRCMP("-e", argv[1]) == 0) {
ShowCiphers();
}
return 0;
case 3:
if (XSTRCMP("-l", argv[1]) == 0) {
cipherList = argv[2];
}
break;
default:
printf("usage:\n");
printf("\t%s\n", argv[0]);
printf("\t%s -e\n", argv[0]);
printf("\t%s -l <Cipher suite>\n", argv[0]);
return 0;
}
/* 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) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Create and initialize WOLFSSL_CTX */
if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_server_method())) == NULL) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Set cipher suite */
if (cipherList != NULL) {
if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != WOLFSSL_SUCCESS) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
}
/* Load server certificates into WOLFSSL_CTX */
if ((ret = wolfSSL_CTX_use_certificate_file(ctx, CERT_FILE, SSL_FILETYPE_PEM))
!= WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Load server key into WOLFSSL_CTX */
if ((ret = wolfSSL_CTX_use_PrivateKey_file(ctx, KEY_FILE, SSL_FILETYPE_PEM))
!= WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* 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) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Listen for a new connection, allow 5 pending connections */
if (listen(sockfd, 5) == -1) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* 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) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Create a WOLFSSL object */
if ((ssl = wolfSSL_new(ctx)) == NULL) {
ret = -1;
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Attach wolfSSL to the socket */
wolfSSL_set_fd(ssl, connd);
/* Establish TLS connection */
ret = wolfSSL_accept(ssl);
if (ret != WOLFSSL_SUCCESS) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Show Description of cipher suite */
static int lng_index = 0;
showPeerEx(ssl, lng_index);
printf("Client connected successfully\n");
/* Read the client data into our buff array */
memset(buff, 0, sizeof(buff));
if ((ret = wolfSSL_read(ssl, buff, sizeof(buff)-1)) == -1) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* 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 ((ret = wolfSSL_write(ssl, buff, len)) != len) {
err = wolfSSL_get_error(ssl, ret);
printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
goto exit;
}
/* Notify the client that the connection is ending */
wolfSSL_shutdown(ssl);
printf("Shutdown complete\n");
/* Cleanup after this connection */
wolfSSL_free(ssl); /* Free the wolfSSL object */
close(connd); /* Close the connection to the client */
}
ret = 0;
exit:
/* Cleanup and return */
if (ssl)
wolfSSL_free(ssl); /* Free the wolfSSL object */
if (connd != SOCKET_INVALID)
close(connd); /* Close the connection to the client */
if (sockfd != SOCKET_INVALID)
close(sockfd); /* Close the socket listening for clients */
if (ctx)
wolfSSL_CTX_free(ctx); /* Free the wolfSSL context object */
wolfSSL_Cleanup(); /* Cleanup the wolfSSL environment */
return ret; /* Return reporting a success */
}