* [including the GNU Public Licence.]
*/
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <errno.h>
#include "openssl/e_os.h"
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
+#include <openssl/rand.h>
#ifdef WINDOWS
#include "../crypto/bio/bss_file.c"
#endif
-#if defined(NO_RSA) && !defined(NO_SSL2)
-#define NO_SSL2
-#endif
-
#ifdef VMS
# define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
# define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
# define TEST_CLIENT_CERT "../apps/client.pem"
#endif
-int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
+static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
#ifndef NO_RSA
-static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
+static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
#endif
#ifndef NO_DH
static DH *get_dh512(void);
#endif
-BIO *bio_err=NULL;
-BIO *bio_stdout=NULL;
+#ifndef NO_DSA
+static void MS_CALLBACK dsa_cb(int p, int n, void *arg);
+#endif
+
+static BIO *bio_err=NULL;
+static BIO *bio_stdout=NULL;
static char *cipher=NULL;
-int verbose=0;
-int debug=0;
+static int verbose=0;
+static int debug=0;
+#if 0
+/* Not used yet. */
#ifdef FIONBIO
static int s_nbio=0;
#endif
+#endif
+static const char rnd_seed[] = "string to make the random number generator think it has entropy";
+int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes);
int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
static void sv_usage(void)
{
fprintf(stderr," -reuse - use session-id reuse\n");
fprintf(stderr," -num <val> - number of connections to perform\n");
fprintf(stderr," -bytes <val> - number of bytes to swap between client/server\n");
+#if !defined NO_DH && !defined NO_DSA
+ fprintf(stderr," -dhe1024 - generate 1024 bit key for DHE\n");
+#endif
+#if !defined NO_DH
+ fprintf(stderr," -no_dhe - disable DHE\n");
+#endif
#ifndef NO_SSL2
fprintf(stderr," -ssl2 - use SSLv2\n");
#endif
fprintf(stderr," -s_cert arg - Just the server certificate file\n");
fprintf(stderr," -c_cert arg - Just the client certificate file\n");
fprintf(stderr," -cipher arg - The cipher list\n");
+ fprintf(stderr," -bio_pair - Use BIO pairs\n");
+ fprintf(stderr," -f - Test even cases that can't work\n");
}
int main(int argc, char *argv[])
{
char *CApath=NULL,*CAfile=NULL;
int badop=0;
+ int bio_pair=0;
+ int force=0;
int tls1=0,ssl2=0,ssl3=0,ret=1;
int client_auth=0;
int server_auth=0,i;
int number=1,reuse=0;
long bytes=1L;
SSL_CIPHER *ciph;
+ int dhe1024 = 0, no_dhe = 0;
#ifndef NO_DH
DH *dh;
#endif
+ verbose = 0;
+ debug = 0;
+ cipher = 0;
+
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
+
+ RAND_seed(rnd_seed, sizeof rnd_seed);
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
- CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
-
argc--;
argv++;
debug=1;
else if (strcmp(*argv,"-reuse") == 0)
reuse=1;
+ else if (strcmp(*argv,"-dhe1024") == 0)
+ dhe1024=1;
+ else if (strcmp(*argv,"-no_dhe") == 0)
+ no_dhe=1;
else if (strcmp(*argv,"-ssl2") == 0)
ssl2=1;
else if (strcmp(*argv,"-tls1") == 0)
if (--argc < 1) goto bad;
CAfile= *(++argv);
}
+ else if (strcmp(*argv,"-bio_pair") == 0)
+ {
+ bio_pair = 1;
+ }
+ else if (strcmp(*argv,"-f") == 0)
+ {
+ force = 1;
+ }
else
{
fprintf(stderr,"unknown option %s\n",*argv);
goto end;
}
+ if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
+ {
+ fprintf(stderr, "This case cannot work. Use -f switch to perform "
+ "the test anyway\n"
+ "(and -d to see what happens, "
+ "and -bio_pair to really make it happen :-)\n"
+ "or add one of -ssl2, -ssl3, -tls1, -reuse to "
+ "avoid protocol mismatch.\n");
+ exit(1);
+ }
+
/* if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
SSL_library_init();
}
#ifndef NO_DH
- dh=get_dh512();
- SSL_CTX_set_tmp_dh(s_ctx,dh);
- DH_free(dh);
+ if (!no_dhe)
+ {
+# ifndef NO_DSA
+ if (dhe1024)
+ {
+ DSA *dsa;
+ unsigned char seed[20];
+
+ if (verbose)
+ {
+ BIO_printf(bio_err, "Creating 1024 bit DHE parameters\n");
+ BIO_flush(bio_err);
+ }
+
+ memcpy(seed, "Random String no. 12", 20);
+ dsa = DSA_generate_parameters(1024, seed, 20, NULL, NULL, dsa_cb, bio_err);
+ dh = DSA_dup_DH(dsa);
+ DSA_free(dsa);
+ /* important: SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */
+ SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
+
+ if (verbose)
+ fprintf(stdout, " done\n");
+ }
+ else
+# endif
+ dh=get_dh512();
+ SSL_CTX_set_tmp_dh(s_ctx,dh);
+ DH_free(dh);
+ }
#endif
#ifndef NO_RSA
if (client_auth)
{
- fprintf(stderr,"client authentication\n");
+ BIO_printf(bio_err,"client authentication\n");
SSL_CTX_set_verify(s_ctx,
SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
verify_callback);
}
if (server_auth)
{
- fprintf(stderr,"server authentication\n");
+ BIO_printf(bio_err,"server authentication\n");
SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
verify_callback);
}
+
+ {
+ int session_id_context = 0;
+ SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context);
+ }
c_ssl=SSL_new(c_ctx);
s_ssl=SSL_new(s_ctx);
for (i=0; i<number; i++)
{
if (!reuse) SSL_set_session(c_ssl,NULL);
- ret=doit(s_ssl,c_ssl,bytes);
+ if (bio_pair)
+ ret=doit_biopair(s_ssl,c_ssl,bytes);
+ else
+ ret=doit(s_ssl,c_ssl,bytes);
}
if (!verbose)
{
ciph=SSL_get_current_cipher(c_ssl);
- fprintf(stdout,"Protocol %s, cipher %s, %s\n",
+ BIO_printf(bio_stdout,"Protocol %s, cipher %s, %s\n",
SSL_get_version(c_ssl),
SSL_CIPHER_get_version(ciph),
SSL_CIPHER_get_name(ciph));
}
if ((number > 1) || (bytes > 1L))
- printf("%d handshakes of %ld bytes done\n",number,bytes);
+ BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n",number,bytes);
SSL_free(s_ssl);
SSL_free(c_ssl);
ERR_remove_state(0);
EVP_cleanup();
CRYPTO_mem_leaks(bio_err);
+ if (bio_err != NULL) BIO_free(bio_err);
EXIT(ret);
}
+int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count)
+ {
+ long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
+ BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
+ BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
+ SSL_CIPHER *ciph;
+ int ret = 1;
+
+ size_t bufsiz = 256; /* small buffer for testing */
+
+ if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
+ goto err;
+ if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
+ goto err;
+
+ s_ssl_bio = BIO_new(BIO_f_ssl());
+ if (!s_ssl_bio)
+ goto err;
+
+ c_ssl_bio = BIO_new(BIO_f_ssl());
+ if (!c_ssl_bio)
+ goto err;
+
+ SSL_set_connect_state(c_ssl);
+ SSL_set_bio(c_ssl, client, client);
+ (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
+
+ SSL_set_accept_state(s_ssl);
+ SSL_set_bio(s_ssl, server, server);
+ (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
+
+ do
+ {
+ /* c_ssl_bio: SSL filter BIO
+ *
+ * client: pseudo-I/O for SSL library
+ *
+ * client_io: client's SSL communication; usually to be
+ * relayed over some I/O facility, but in this
+ * test program, we're the server, too:
+ *
+ * server_io: server's SSL communication
+ *
+ * server: pseudo-I/O for SSL library
+ *
+ * s_ssl_bio: SSL filter BIO
+ *
+ * The client and the server each employ a "BIO pair":
+ * client + client_io, server + server_io.
+ * BIO pairs are symmetric. A BIO pair behaves similar
+ * to a non-blocking socketpair (but both endpoints must
+ * be handled by the same thread).
+ * [Here we could connect client and server to the ends
+ * of a single BIO pair, but then this code would be less
+ * suitable as an example for BIO pairs in general.]
+ *
+ * Useful functions for querying the state of BIO pair endpoints:
+ *
+ * BIO_ctrl_pending(bio) number of bytes we can read now
+ * BIO_ctrl_get_read_request(bio) number of bytes needed to fulfil
+ * other side's read attempt
+ * BIO_ctrl_get_write_guarantee(bio) number of bytes we can write now
+ *
+ * ..._read_request is never more than ..._write_guarantee;
+ * it depends on the application which one you should use.
+ */
+
+ /* We have non-blocking behaviour throughout this test program, but
+ * can be sure that there is *some* progress in each iteration; so
+ * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
+ * -- we just try everything in each iteration
+ */
+
+ {
+ /* CLIENT */
+
+ MS_STATIC char cbuf[1024*8];
+ int i, r;
+
+ if (debug)
+ if (SSL_in_init(c_ssl))
+ printf("client waiting in SSL_connect - %s\n",
+ SSL_state_string_long(c_ssl));
+
+ if (cw_num > 0)
+ {
+ /* Write to server. */
+
+ if (cw_num > (long)sizeof cbuf)
+ i = sizeof cbuf;
+ else
+ i = (int)cw_num;
+ r = BIO_write(c_ssl_bio, cbuf, i);
+ if (r < 0)
+ {
+ if (!BIO_should_retry(c_ssl_bio))
+ {
+ fprintf(stderr,"ERROR in CLIENT\n");
+ goto err;
+ }
+ /* BIO_should_retry(...) can just be ignored here.
+ * The library expects us to call BIO_write with
+ * the same arguments again, and that's what we will
+ * do in the next iteration. */
+ }
+ else if (r == 0)
+ {
+ fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
+ goto err;
+ }
+ else
+ {
+ if (debug)
+ printf("client wrote %d\n", r);
+ cw_num -= r;
+ }
+ }
+
+ if (cr_num > 0)
+ {
+ /* Read from server. */
+
+ r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
+ if (r < 0)
+ {
+ if (!BIO_should_retry(c_ssl_bio))
+ {
+ fprintf(stderr,"ERROR in CLIENT\n");
+ goto err;
+ }
+ /* Again, "BIO_should_retry" can be ignored. */
+ }
+ else if (r == 0)
+ {
+ fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
+ goto err;
+ }
+ else
+ {
+ if (debug)
+ printf("client read %d\n", r);
+ cr_num -= r;
+ }
+ }
+ }
+
+ {
+ /* SERVER */
+
+ MS_STATIC char sbuf[1024*8];
+ int i, r;
+
+ if (debug)
+ if (SSL_in_init(s_ssl))
+ printf("server waiting in SSL_accept - %s\n",
+ SSL_state_string_long(s_ssl));
+
+ if (sw_num > 0)
+ {
+ /* Write to client. */
+
+ if (sw_num > (long)sizeof sbuf)
+ i = sizeof sbuf;
+ else
+ i = (int)sw_num;
+ r = BIO_write(s_ssl_bio, sbuf, i);
+ if (r < 0)
+ {
+ if (!BIO_should_retry(s_ssl_bio))
+ {
+ fprintf(stderr,"ERROR in SERVER\n");
+ goto err;
+ }
+ /* Ignore "BIO_should_retry". */
+ }
+ else if (r == 0)
+ {
+ fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
+ goto err;
+ }
+ else
+ {
+ if (debug)
+ printf("server wrote %d\n", r);
+ sw_num -= r;
+ }
+ }
+
+ if (sr_num > 0)
+ {
+ /* Read from client. */
+
+ r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
+ if (r < 0)
+ {
+ if (!BIO_should_retry(s_ssl_bio))
+ {
+ fprintf(stderr,"ERROR in SERVER\n");
+ goto err;
+ }
+ /* blah, blah */
+ }
+ else if (r == 0)
+ {
+ fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
+ goto err;
+ }
+ else
+ {
+ if (debug)
+ printf("server read %d\n", r);
+ sr_num -= r;
+ }
+ }
+ }
+
+ {
+ /* "I/O" BETWEEN CLIENT AND SERVER. */
+
+ size_t r1, r2;
+ BIO *io1 = server_io, *io2 = client_io;
+ /* we use the non-copying interface for io1
+ * and the standard BIO_write/BIO_read interface for io2
+ */
+
+ static int prev_progress = 1;
+ int progress = 0;
+
+ /* io1 to io2 */
+ do
+ {
+ size_t num;
+ int r;
+
+ r1 = BIO_ctrl_pending(io1);
+ r2 = BIO_ctrl_get_write_guarantee(io2);
+
+ num = r1;
+ if (r2 < num)
+ num = r2;
+ if (num)
+ {
+ char *dataptr;
+
+ if (INT_MAX < num) /* yeah, right */
+ num = INT_MAX;
+
+ r = BIO_nread(io1, &dataptr, (int)num);
+ assert(r > 0);
+ assert(r <= (int)num);
+ /* possibly r < num (non-contiguous data) */
+ num = r;
+ r = BIO_write(io2, dataptr, (int)num);
+ if (r != (int)num) /* can't happen */
+ {
+ fprintf(stderr, "ERROR: BIO_write could not write "
+ "BIO_ctrl_get_write_guarantee() bytes");
+ goto err;
+ }
+ progress = 1;
+
+ if (debug)
+ printf((io1 == client_io) ?
+ "C->S relaying: %d bytes\n" :
+ "S->C relaying: %d bytes\n",
+ (int)num);
+ }
+ }
+ while (r1 && r2);
+
+ /* io2 to io1 */
+ {
+ size_t num;
+ int r;
+
+ r1 = BIO_ctrl_pending(io2);
+ r2 = BIO_ctrl_get_read_request(io1);
+ /* here we could use ..._get_write_guarantee instead of
+ * ..._get_read_request, but by using the latter
+ * we test restartability of the SSL implementation
+ * more thoroughly */
+ num = r1;
+ if (r2 < num)
+ num = r2;
+ if (num)
+ {
+ char *dataptr;
+
+ if (INT_MAX < num)
+ num = INT_MAX;
+
+ if (num > 1)
+ --num; /* test restartability even more thoroughly */
+
+ r = BIO_nwrite(io1, &dataptr, (int)num);
+ assert(r > 0);
+ assert(r <= (int)num);
+ num = r;
+ r = BIO_read(io2, dataptr, (int)num);
+ if (r != (int)num) /* can't happen */
+ {
+ fprintf(stderr, "ERROR: BIO_read could not read "
+ "BIO_ctrl_pending() bytes");
+ goto err;
+ }
+ progress = 1;
+
+ if (debug)
+ printf((io2 == client_io) ?
+ "C->S relaying: %d bytes\n" :
+ "S->C relaying: %d bytes\n",
+ (int)num);
+ }
+ } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */
+
+ if (!progress && !prev_progress)
+ if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
+ {
+ fprintf(stderr, "ERROR: got stuck\n");
+ if (strcmp("SSLv2", SSL_get_version(c_ssl)) == 0)
+ {
+ fprintf(stderr, "This can happen for SSL2 because "
+ "CLIENT-FINISHED and SERVER-VERIFY are written \n"
+ "concurrently ...");
+ if (strncmp("2SCF", SSL_state_string(c_ssl), 4) == 0
+ && strncmp("2SSV", SSL_state_string(s_ssl), 4) == 0)
+ {
+ fprintf(stderr, " ok.\n");
+ goto end;
+ }
+ }
+ fprintf(stderr, " ERROR.\n");
+ goto err;
+ }
+ prev_progress = progress;
+ }
+ }
+ while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
+
+ ciph = SSL_get_current_cipher(c_ssl);
+ if (verbose)
+ fprintf(stdout,"DONE via BIO pair, protocol %s, cipher %s, %s\n",
+ SSL_get_version(c_ssl),
+ SSL_CIPHER_get_version(ciph),
+ SSL_CIPHER_get_name(ciph));
+ end:
+ ret = 0;
+
+ err:
+ ERR_print_errors(bio_err);
+
+ if (server)
+ BIO_free(server);
+ if (server_io)
+ BIO_free(server_io);
+ if (client)
+ BIO_free(client);
+ if (client_io)
+ BIO_free(client_io);
+ if (s_ssl_bio)
+ BIO_free(s_ssl_bio);
+ if (c_ssl_bio)
+ BIO_free(c_ssl_bio);
+
+ return ret;
+ }
+
+
#define W_READ 1
#define W_WRITE 2
#define C_DONE 1
return(ret);
}
-int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
+static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
{
char *s,buf[256];
#endif
#ifndef NO_RSA
-static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
+static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
{
static RSA *rsa_tmp=NULL;
if (rsa_tmp == NULL)
{
BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
- BIO_flush(bio_err);
+ (void)BIO_flush(bio_err);
rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
BIO_printf(bio_err,"\n");
- BIO_flush(bio_err);
+ (void)BIO_flush(bio_err);
}
return(rsa_tmp);
}
#endif
+
+#ifndef NO_DSA
+static void MS_CALLBACK dsa_cb(int p, int n, void *arg)
+ {
+ char c='*';
+ static int ok=0,num=0;
+
+ if (p == 0) { c='.'; num++; };
+ if (p == 1) c='+';
+ if (p == 2) { c='*'; ok++; }
+ if (p == 3) c='\n';
+ BIO_write(arg,&c,1);
+ (void)BIO_flush(arg);
+
+ if (!ok && (p == 0) && (num > 1))
+ {
+ BIO_printf((BIO *)arg,"error in dsatest\n");
+ exit(1);
+ }
+ }
+#endif