PSK example: add TLS v1.3 client/server example supporting multiple identities
Sean Parkinson
parent
c85c7a1152
commit
2da64d0721
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@ -59,12 +59,15 @@ android/wolfssljni-ndk-sample/proguard-project.txt
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/dtls/server-dtls
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/dtls/server-dtls
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/dtls/server-udp
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/dtls/server-udp
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/psk/client-psk-bio-custom
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/psk/client-psk-nonblocking
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/psk/client-psk-nonblocking
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/psk/client-psk-resume
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/psk/client-psk-resume
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/psk/client-psk-tls13-multi-id
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/psk/client-psk
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/psk/client-psk
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/psk/client-tcp
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/psk/client-tcp
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/psk/server-psk-nonblocking
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/psk/server-psk-nonblocking
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/psk/server-psk-threaded
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/psk/server-psk-threaded
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/psk/server-psk-tls13-multi-id
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/psk/server-psk
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/psk/server-psk
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/psk/server-tcp
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/psk/server-tcp
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14
psk/Makefile
14
psk/Makefile
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@ -1,13 +1,13 @@
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CC=gcc
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CC=gcc
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CFLAGS=-Wall -I/usr/local/include
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CFLAGS=-Wall -I../../wolfssl -g -DDEBUG
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LIBS=-lwolfssl -lm -L/usr/local/lib
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LIBS=-lwolfssl -lm -L../../wolfssl/src/.libs
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# For debug (./configure --enable-debug --disable-shared)
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# For debug (./configure --enable-debug --disable-shared)
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#LIBS=/usr/local/lib/libwolfssl.a
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#LIBS=/usr/local/lib/libwolfssl.a
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#CFLAGS+=-g -DDEBUG
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#CFLAGS+=-g -DDEBUG
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all: client-tcp client-psk client-psk-nonblocking client-psk-resume server-tcp server-psk server-psk-nonblocking server-psk-threaded client-psk-bio-custom
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all: client-tcp client-psk client-psk-nonblocking client-psk-resume client-psk-tls13-multi-id server-tcp server-psk server-psk-nonblocking server-psk-threaded client-psk-bio-custom server-psk-tls13-multi-id
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client-tcp: client-tcp.o
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client-tcp: client-tcp.o
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$(CC) -o $@ $^ $(CFLAGS)
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$(CC) -o $@ $^ $(CFLAGS)
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@ -21,6 +21,9 @@ client-psk-nonblocking: client-psk-nonblocking.o
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client-psk-resume: client-psk-resume.o
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client-psk-resume: client-psk-resume.o
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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client-psk-tls13-multi-id: client-psk-tls13-multi-id.o
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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server-tcp: server-tcp.o
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server-tcp: server-tcp.o
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$(CC) -o $@ $^ $(CFLAGS)
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$(CC) -o $@ $^ $(CFLAGS)
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@ -36,7 +39,10 @@ server-psk-threaded: server-psk-threaded.o
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client-psk-bio-custom: client-psk-bio-custom.o
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client-psk-bio-custom: client-psk-bio-custom.o
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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server-psk-tls13-multi-id: server-psk-tls13-multi-id.o
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$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
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.PHONY: clean all
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.PHONY: clean all
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clean:
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clean:
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rm -f *.o client-tcp client-psk client-psk-nonblocking client-psk-resume server-tcp server-psk server-psk-nonblocking server-psk-threaded client-psk-bio-custom
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rm -f *.o client-tcp client-psk client-psk-nonblocking client-psk-resume client-psk-tls13-multi-id server-tcp server-psk server-psk-nonblocking server-psk-threaded client-psk-bio-custom server-psk-tls13-multi-id
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@ -0,0 +1,182 @@
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/* client-psk.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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#include <wolfssl/options.h> /* included for options sync */
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#include <wolfssl/ssl.h> /* must include this to use wolfSSL security */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <arpa/inet.h>
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#include <signal.h>
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#include <unistd.h>
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#define MAXLINE 256 /* max text line length */
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#define SERV_PORT 11111 /* default port*/
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#define PSK_KEY_LEN 4
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/*
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*psk client set up.
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*/
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static inline unsigned int My_Tls13_Psk_Client_Cs_Cb(WOLFSSL* ssl,
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const char* hint, char* identity, unsigned int id_max_len,
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unsigned char* key, unsigned int key_max_len, const char* ciphersuite)
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{
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(void)ssl;
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(void)hint;
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(void)key_max_len;
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if (strncmp(ciphersuite, "TLS13-AES128-GCM-SHA256",
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XSTRLEN(ciphersuite)) == 0) {
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/* identity is OpenSSL testing default for openssl s_client, keep same*/
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strncpy(identity, "Client_Id_AES", id_max_len);
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/* test key n hex is 0x1a2b3c4d */
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key[0] = 0x1a;
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key[1] = 0x2b;
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key[2] = 0x3c;
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key[3] = 0x4d;
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}
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else if (strncmp(ciphersuite, "TLS13-CHACHA20-POLY1305-SHA256",
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XSTRLEN(ciphersuite)) == 0) {
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/* identity is OpenSSL testing default for openssl s_client, keep same*/
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strncpy(identity, "Client_Id_ChaCha", id_max_len);
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/* test key n hex is 0xa1b2c3d4 */
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key[0] = 0xa1;
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key[1] = 0xb2;
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key[2] = 0xc3;
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key[3] = 0xd4;
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}
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else {
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return 0;
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}
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return PSK_KEY_LEN;
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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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int sockfd = SOCKET_INVALID;
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char sendline[MAXLINE]="Hello Server"; /* string to send to the server */
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char recvline[MAXLINE]; /* string received from the server */
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struct sockaddr_in servaddr;;
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WOLFSSL* ssl = NULL;
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WOLFSSL_CTX* ctx = NULL;
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/* must include an ip address of this will flag */
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if (argc != 2) {
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printf("Usage: tcpClient <IPaddress>\n");
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return -1;
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}
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/* create a stream socket using tcp,internet protocal IPv4,
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* full-duplex stream */
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sockfd = socket(AF_INET, SOCK_STREAM, 0);
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/* places n zero-valued bytes in the address servaddr */
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memset(&servaddr, 0, sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = htons(SERV_PORT);
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/* converts IPv4 addresses from text to binary form */
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ret = inet_pton(AF_INET, argv[1], &servaddr.sin_addr);
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if (ret != 1) {
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printf("inet_pton error\n");
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ret = -1;
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goto exit;
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}
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/* attempts to make a connection on a socket */
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ret = connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr));
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if (ret != 0) {
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printf("Connection Error\n");
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ret = -1;
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goto exit;
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}
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wolfSSL_Init(); /* initialize wolfSSL */
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/* create and initialize WOLFSSL_CTX structure */
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if ((ctx = wolfSSL_CTX_new(wolfTLSv1_3_client_method())) == NULL) {
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fprintf(stderr, "wolfSSL_CTX_new error.\n");
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ret = -1;
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goto exit;
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}
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/* set up pre shared keys */
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wolfSSL_CTX_set_psk_client_cs_callback(ctx, My_Tls13_Psk_Client_Cs_Cb);
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/* creat wolfssl object after each tcp connect */
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if ( (ssl = wolfSSL_new(ctx)) == NULL) {
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fprintf(stderr, "wolfSSL_new error.\n");
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ret = -1;
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goto exit;
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}
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/* associate the file descriptor with the session */
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ret = wolfSSL_set_fd(ssl, sockfd);
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if (ret != WOLFSSL_SUCCESS) {
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goto exit;
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}
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/* write string to the server */
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if (wolfSSL_write(ssl, sendline, MAXLINE) != sizeof(sendline)) {
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printf("Write Error to Server\n");
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ret = -1;
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goto exit;
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}
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/* check if server ended before client could read a response */
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if (wolfSSL_read(ssl, recvline, MAXLINE) < 0 ) {
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printf("Client: Server Terminated Prematurely!\n");
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ret = -1;
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goto exit;
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}
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WOLFSSL_CIPHER* cipher = wolfSSL_get_current_cipher(ssl);
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printf("Cipher suite: %s\n", wolfSSL_CIPHER_get_name(cipher));
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/* show message from the server */
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printf("Server Message: %s\n", recvline);
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ret = 0;
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exit:
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/* Cleanup and return */
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if (ssl)
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wolfSSL_free(ssl); /* Free the wolfSSL object */
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if (sockfd != SOCKET_INVALID)
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close(sockfd); /* Close the socket */
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if (ctx)
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wolfSSL_CTX_free(ctx); /* Free the wolfSSL context object */
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wolfSSL_Cleanup(); /* Cleanup the wolfSSL environment */
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return ret; /* Return reporting a success */
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}
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@ -0,0 +1,215 @@
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/* server-psk.c
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* A server ecample using a TCP connection with PSK security.
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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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#include <wolfssl/options.h> /* included for options sync */
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#include <wolfssl/ssl.h> /* include wolfSSL security */
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <arpa/inet.h>
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#define MAXLINE 4096
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#define LISTENQ 1024
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#define SERV_PORT 11111
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#define PSK_KEY_LEN 4
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#define dhParamFile "../certs/dh2048.pem"
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/*
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* Identify which psk key to use.
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*/
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static unsigned int my_tls13_psk_server_cb(WOLFSSL* ssl, const char* identity,
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unsigned char* key, unsigned int key_max_len, const char** ciphersuite)
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{
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(void)ssl;
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(void)key_max_len;
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if (strncmp(identity, "Client_Id_AES", 14) == 0) {
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key[0] = 0x1a;
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key[1] = 0x2b;
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key[2] = 0x3c;
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key[3] = 0x4d;
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*ciphersuite = "TLS13-AES128-GCM-SHA256";
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}
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else if (strncmp(identity, "Client_Id_ChaCha", 17) == 0) {
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key[0] = 0xa1;
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key[1] = 0xb2;
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key[2] = 0xc3;
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key[3] = 0xd4;
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*ciphersuite = "TLS13-CHACHA20-POLY1305-SHA256";
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}
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else {
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return 0;
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}
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return PSK_KEY_LEN;
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}
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int main()
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{
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int n; /* length of string read */
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int listenfd, connfd, ret;
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int opt;
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char buff[MAXLINE];
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char buf[MAXLINE]; /* string read from client */
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char response[] = "I hear ya for shizzle";
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char suites[] = "TLS13-CHACHA20-POLY1305-SHA256:"
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"TLS13-AES128-GCM-SHA256:"
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"TLS13-AES256-GCM-SHA384:";
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struct sockaddr_in cliAddr, servAddr;
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socklen_t cliLen;
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WOLFSSL_CTX* ctx;
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#if defined(DEBUG_WOLFSSL)
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wolfSSL_Debugging_ON();
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#endif
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/* set up server address and port */
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memset(&servAddr, 0, sizeof(servAddr));
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servAddr.sin_family = AF_INET;
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servAddr.sin_addr.s_addr = htonl(INADDR_ANY);
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servAddr.sin_port = htons(SERV_PORT);
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/* find a socket */
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listenfd = socket(AF_INET, SOCK_STREAM, 0);
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if (listenfd < 0) {
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printf("Fatal error : socket error\n");
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return 1;
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}
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/* bind to a socket */
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opt = 1;
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if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (const void *)&opt,
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sizeof(int)) != 0) {
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printf("Fatal error : setsockopt error\n");
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return 1;
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}
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if (bind(listenfd, (struct sockaddr *) &servAddr, sizeof(servAddr)) < 0) {
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printf("Fatal error : bind error\n");
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return 1;
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}
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/* listen to the socket */
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||||||
|
if (listen(listenfd, LISTENQ) < 0) {
|
||||||
|
printf("Fatal error : listen error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
wolfSSL_Init();
|
||||||
|
/* create ctx and configure certificates */
|
||||||
|
if ((ctx = wolfSSL_CTX_new(wolfTLSv1_3_server_method())) == NULL) {
|
||||||
|
printf("Fatal error : wolfSSL_CTX_new error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* use psk suite for security */
|
||||||
|
wolfSSL_CTX_set_psk_server_tls13_callback(ctx, my_tls13_psk_server_cb);
|
||||||
|
|
||||||
|
if ((ret = wolfSSL_CTX_use_psk_identity_hint(ctx, "wolfssl server"))
|
||||||
|
!= WOLFSSL_SUCCESS) {
|
||||||
|
printf("Fatal error : ctx use psk identity hint returned %d\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((ret = wolfSSL_CTX_set_cipher_list(ctx, suites)) != WOLFSSL_SUCCESS) {
|
||||||
|
printf("Fatal error : server set cipher list returned %d\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifndef NO_DH
|
||||||
|
if ((ret = wolfSSL_CTX_SetTmpDH_file(ctx, dhParamFile, WOLFSSL_FILETYPE_PEM)
|
||||||
|
) != WOLFSSL_SUCCESS) {
|
||||||
|
printf("Fatal error: server set temp DH params returned %d\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* main loop for accepting and responding to clients */
|
||||||
|
for ( ; ; ) {
|
||||||
|
WOLFSSL* ssl;
|
||||||
|
|
||||||
|
cliLen = sizeof(cliAddr);
|
||||||
|
connfd = accept(listenfd, (struct sockaddr *) &cliAddr, &cliLen);
|
||||||
|
if (connfd < 0) {
|
||||||
|
printf("Fatal error : accept error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
printf("Connection from %s, port %d\n",
|
||||||
|
inet_ntop(AF_INET, &cliAddr.sin_addr, buff, sizeof(buff)),
|
||||||
|
ntohs(cliAddr.sin_port));
|
||||||
|
|
||||||
|
/* create WOLFSSL object and respond */
|
||||||
|
if ((ssl = wolfSSL_new(ctx)) == NULL) {
|
||||||
|
printf("Fatal error : wolfSSL_new error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* sets the file descriptor of the socket for the ssl session */
|
||||||
|
wolfSSL_set_fd(ssl, connfd);
|
||||||
|
|
||||||
|
/* making sure buffered to store data sent from client is empty */
|
||||||
|
memset(buf, 0, MAXLINE);
|
||||||
|
|
||||||
|
/* reads and displays data sent by client if no errors occur */
|
||||||
|
n = wolfSSL_read(ssl, buf, MAXLINE);
|
||||||
|
if (n > 0) {
|
||||||
|
printf("%s\n", buf);
|
||||||
|
/* server response */
|
||||||
|
if (wolfSSL_write(ssl, response, strlen(response)) >
|
||||||
|
strlen(response)) {
|
||||||
|
printf("Fatal error : respond: write error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (n < 0) {
|
||||||
|
printf("Fatal error :respond: read error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* closes the connections after responding */
|
||||||
|
wolfSSL_shutdown(ssl);
|
||||||
|
wolfSSL_free(ssl);
|
||||||
|
|
||||||
|
if (close(connfd) == -1) {
|
||||||
|
printf("Fatal error : close error\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* free up memory used by wolfSSL */
|
||||||
|
wolfSSL_CTX_free(ctx);
|
||||||
|
wolfSSL_Cleanup();
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
Loading…
Reference in New Issue