first commit, SM2-DSA only

demos/bio/Makefile

@@ -0,0 +1,16 @@
+CC=cc
+CFLAGS= -g -I../../include
+LIBS= -L../.. ../../libssl.a ../../libcrypto.a
+EXAMPLES=saccept sconnect
+
+all: $(EXAMPLES) 
+
+saccept: saccept.o
+	$(CC) -o saccept saccept.o $(LIBS)
+
+sconnect: sconnect.o
+	$(CC) -o sconnect sconnect.o $(LIBS)
+
+clean:	
+	rm -f $(EXAMPLES) *.o
+

demos/bio/README

@@ -0,0 +1,3 @@
+This directory contains some simple examples of the use of BIO's
+to simplify socket programming.
+

demos/bio/saccept.c

@@ -0,0 +1,112 @@
+/* NOCW */
+/* demos/bio/saccept.c */
+
+/* A minimal program to server an SSL connection.
+ * It uses blocking.
+ * saccept host:port
+ * host is the interface IP to use.  If any interface, use *:port
+ * The default it *:4433
+ *
+ * cc -I../../include saccept.c -L../.. -lssl -lcrypto
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+
+#define CERT_FILE	"server.pem"
+
+BIO *in=NULL;
+
+void close_up()
+	{
+	if (in != NULL)
+		BIO_free(in);
+	}
+
+int main(argc,argv)
+int argc;
+char *argv[];
+	{
+	char *port=NULL;
+	BIO *ssl_bio,*tmp;
+	SSL_CTX *ctx;
+	SSL *ssl;
+	char buf[512];
+	int ret=1,i;
+
+        if (argc <= 1)
+		port="*:4433";
+	else
+		port=argv[1];
+
+	signal(SIGINT,close_up);
+
+	SSL_load_error_strings();
+
+#ifdef WATT32
+	dbug_init();
+	sock_init();
+#endif
+
+	/* Add ciphers and message digests */
+	OpenSSL_add_ssl_algorithms();
+
+	ctx=SSL_CTX_new(SSLv23_server_method());
+	if (!SSL_CTX_use_certificate_file(ctx,CERT_FILE,SSL_FILETYPE_PEM))
+		goto err;
+	if (!SSL_CTX_use_PrivateKey_file(ctx,CERT_FILE,SSL_FILETYPE_PEM))
+		goto err;
+	if (!SSL_CTX_check_private_key(ctx))
+		goto err;
+
+	/* Setup server side SSL bio */
+	ssl=SSL_new(ctx);
+	ssl_bio=BIO_new_ssl(ctx,0);
+
+	if ((in=BIO_new_accept(port)) == NULL) goto err;
+
+	/* This means that when a new connection is acceptede on 'in',
+	 * The ssl_bio will be 'dupilcated' and have the new socket
+	 * BIO push into it.  Basically it means the SSL BIO will be
+	 * automatically setup */
+	BIO_set_accept_bios(in,ssl_bio);
+
+again:
+	/* The first call will setup the accept socket, and the second
+	 * will get a socket.  In this loop, the first actual accept
+	 * will occur in the BIO_read() function. */
+
+	if (BIO_do_accept(in) <= 0) goto err;
+
+	for (;;)
+		{
+		i=BIO_read(in,buf,512);
+		if (i == 0)
+			{
+			/* If we have finished, remove the underlying
+			 * BIO stack so the next time we call any function
+			 * for this BIO, it will attempt to do an
+			 * accept */
+			printf("Done\n");
+			tmp=BIO_pop(in);
+			BIO_free_all(tmp);
+			goto again;
+			}
+		if (i < 0) goto err;
+		fwrite(buf,1,i,stdout);
+		fflush(stdout);
+		}
+
+	ret=0;
+err:
+	if (ret)
+		{
+		ERR_print_errors_fp(stderr);
+		}
+	if (in != NULL) BIO_free(in);
+	exit(ret);
+	return(!ret);
+	}
+

demos/bio/sconnect.c

@@ -0,0 +1,121 @@
+/* NOCW */
+/* demos/bio/sconnect.c */
+
+/* A minimal program to do SSL to a passed host and port.
+ * It is actually using non-blocking IO but in a very simple manner
+ * sconnect host:port - it does a 'GET / HTTP/1.0'
+ *
+ * cc -I../../include sconnect.c -L../.. -lssl -lcrypto
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+
+extern int errno;
+
+int main(argc,argv)
+int argc;
+char *argv[];
+	{
+	char *host;
+	BIO *out;
+	char buf[1024*10],*p;
+	SSL_CTX *ssl_ctx=NULL;
+	SSL *ssl;
+	BIO *ssl_bio;
+	int i,len,off,ret=1;
+
+	if (argc <= 1)
+		host="localhost:4433";
+	else
+		host=argv[1];
+
+#ifdef WATT32
+	dbug_init();
+	sock_init();
+#endif
+
+	/* Lets get nice error messages */
+	SSL_load_error_strings();
+
+	/* Setup all the global SSL stuff */
+	OpenSSL_add_ssl_algorithms();
+	ssl_ctx=SSL_CTX_new(SSLv23_client_method());
+
+	/* Lets make a SSL structure */
+	ssl=SSL_new(ssl_ctx);
+	SSL_set_connect_state(ssl);
+
+	/* Use it inside an SSL BIO */
+	ssl_bio=BIO_new(BIO_f_ssl());
+	BIO_set_ssl(ssl_bio,ssl,BIO_CLOSE);
+
+	/* Lets use a connect BIO under the SSL BIO */
+	out=BIO_new(BIO_s_connect());
+	BIO_set_conn_hostname(out,host);
+	BIO_set_nbio(out,1);
+	out=BIO_push(ssl_bio,out);
+
+	p="GET / HTTP/1.0\r\n\r\n";
+	len=strlen(p);
+
+	off=0;
+	for (;;)
+		{
+		i=BIO_write(out,&(p[off]),len);
+		if (i <= 0)
+			{
+			if (BIO_should_retry(out))
+				{
+				fprintf(stderr,"write DELAY\n");
+				sleep(1);
+				continue;
+				}
+			else
+				{
+				goto err;
+				}
+			}
+		off+=i;
+		len-=i;
+		if (len <= 0) break;
+		}
+
+	for (;;)
+		{
+		i=BIO_read(out,buf,sizeof(buf));
+		if (i == 0) break;
+		if (i < 0)
+			{
+			if (BIO_should_retry(out))
+				{
+				fprintf(stderr,"read DELAY\n");
+				sleep(1);
+				continue;
+				}
+			goto err;
+			}
+		fwrite(buf,1,i,stdout);
+		}
+
+	ret=1;
+
+	if (0)
+		{
+err:
+		if (ERR_peek_error() == 0) /* system call error */
+			{
+			fprintf(stderr,"errno=%d ",errno);
+			perror("error");
+			}
+		else
+			ERR_print_errors_fp(stderr);
+		}
+	BIO_free_all(out);
+	if (ssl_ctx != NULL) SSL_CTX_free(ssl_ctx);
+	exit(!ret);
+	return(ret);
+	}
+

demos/bio/server.pem

@@ -0,0 +1,30 @@
+subject=/C=AU/SP=QLD/O=Mincom Pty. Ltd./OU=CS/CN=SSLeay demo server
+issuer= /C=AU/SP=QLD/O=Mincom Pty. Ltd./OU=CS/CN=CA
+-----BEGIN X509 CERTIFICATE-----
+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+-----END X509 CERTIFICATE-----
+-----BEGIN RSA PRIVATE KEY-----
+
+MIIBPAIBAAJBALcsJdxJxa5rQ8UuQcEubZV6OqkDUXhFDyrRWNGI9p+PH9n9pYfe
+Kl0xW+4kZr/AVdv+cMUsOV9an6gI/CEG1U8CAwEAAQJAXJMBZ34ZXHd1vtgL/3hZ
+hexKbVTx/djZO4imXO/dxPGRzG2ylYZpHmG32/T1kaHpZlCHoEPgHoSzmxYXfxjG
+sQIhAPmZ/bQOjmRUHM/VM2X5zrjjM6z18R1P6l3ObFwt9FGdAiEAu943Yh9SqMRw
+tL0xHGxKmM/YJueUw1gB6sLkETN71NsCIQCeT3RhoqXfrpXDoEcEU+gwzjI1bpxq
+agiNTOLfqGoA5QIhAIQFYjgzONxex7FLrsKBm16N2SFl5pXsN9SpRqqL2n63AiEA
+g9VNIQ3xwpw7og3IbONifeku+J9qGMGQJMKwSTwrFtI=
+-----END RSA PRIVATE KEY-----
+
+-----BEGIN DH PARAMETERS-----
+MEYCQQDaWDwW2YUiidDkr3VvTMqS3UvlM7gE+w/tlO+cikQD7VdGUNNpmdsp13Yn
+a6LT1BLiGPTdHghM9tgAPnxHdOgzAgEC
+-----END DH PARAMETERS-----
+