Fix for CMS/PKCS7 MMA. If RSA decryption fails use a random key and

[oweals/openssl.git] / apps / s_client.c

diff --git a/apps/s_client.c b/apps/s_client.c
index dc1308b28822334e870399ab2c946932bb7a73ca..2f743f0a0af3f2235e41668f99d4c840bf193885 100644 (file)
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -226,7 +226,7 @@ static void sc_usage(void)
        BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
        BIO_printf(bio_err," -tls1         - just use TLSv1\n");
        BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");    
-       BIO_printf(bio_err," -mtu          - set the MTU\n");
+       BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
        BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
        BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
        BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
@@ -249,6 +249,7 @@ static void sc_usage(void)
        BIO_printf(bio_err," -status           - request certificate status from server\n");
        BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 #endif
+       BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
        }
 
 #ifndef OPENSSL_NO_TLSEXT
@@ -286,7 +287,7 @@ int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
        {
-       int off=0;
+       int off=0, clr = 0;
        SSL *con=NULL,*con2=NULL;
        X509_STORE *store = NULL;
        int s,k,width,state=0;
@@ -318,11 +319,13 @@ int MAIN(int argc, char **argv)
        BIO *sbio;
        char *inrand=NULL;
        int mbuf_len=0;
+       struct timeval timeout, *timeoutp;
 #ifndef OPENSSL_NO_ENGINE
        char *engine_id=NULL;
        char *ssl_client_engine_id=NULL;
-       ENGINE *e=NULL, *ssl_client_engine=NULL;
+       ENGINE *ssl_client_engine=NULL;
 #endif
+       ENGINE *e=NULL;
 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
        struct timeval tv;
 #endif
@@ -337,7 +340,7 @@ int MAIN(int argc, char **argv)
        struct sockaddr peer;
        int peerlen = sizeof(peer);
        int enable_timeouts = 0 ;
-       long mtu = 0;
+       long socket_mtu = 0;
 #ifndef OPENSSL_NO_JPAKE
        char *jpake_secret = NULL;
 #endif
@@ -488,7 +491,7 @@ int MAIN(int argc, char **argv)
                else if (strcmp(*argv,"-mtu") == 0)
                        {
                        if (--argc < 1) goto bad;
-                       mtu = atol(*(++argv));
+                       socket_mtu = atol(*(++argv));
                        }
 #endif
                else if (strcmp(*argv,"-bugs") == 0)
@@ -534,6 +537,12 @@ int MAIN(int argc, char **argv)
 #endif
                else if (strcmp(*argv,"-serverpref") == 0)
                        off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
+               else if (strcmp(*argv,"-legacy_renegotiation") == 0)
+                       off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
+               else if (strcmp(*argv,"-legacy_server_connect") == 0)
+                       { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
+               else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
+                       { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
                else if (strcmp(*argv,"-cipher") == 0)
                        {
                        if (--argc < 1) goto bad;
@@ -708,6 +717,9 @@ bad:
                SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
        else
                SSL_CTX_set_options(ctx,off);
+
+       if (clr)
+               SSL_CTX_clear_options(ctx, clr);
        /* DTLS: partial reads end up discarding unread UDP bytes :-( 
         * Setting read ahead solves this problem.
         */
@@ -818,7 +830,6 @@ re_start:
 
        if ( SSL_version(con) == DTLS1_VERSION)
                {
-               struct timeval timeout;
 
                sbio=BIO_new_dgram(s,BIO_NOCLOSE);
                if (getsockname(s, &peer, (void *)&peerlen) < 0)
@@ -842,10 +853,10 @@ re_start:
                        BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
                        }
 
-               if ( mtu > 0)
+               if (socket_mtu > 28)
                        {
                        SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
-                       SSL_set_mtu(con, mtu);
+                       SSL_set_mtu(con, socket_mtu - 28);
                        }
                else
                        /* want to do MTU discovery */
@@ -1035,6 +1046,12 @@ SSL_set_tlsext_status_ids(con, ids);
                FD_ZERO(&readfds);
                FD_ZERO(&writefds);
 
+               if ((SSL_version(con) == DTLS1_VERSION) &&
+                       DTLSv1_get_timeout(con, &timeout))
+                       timeoutp = &timeout;
+               else
+                       timeoutp = NULL;
+
                if (SSL_in_init(con) && !SSL_total_renegotiations(con))
                        {
                        in_init=1;
@@ -1131,7 +1148,7 @@ SSL_set_tlsext_status_ids(con, ids);
                                        if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 #endif
                                } else  i=select(width,(void *)&readfds,(void *)&writefds,
-                                        NULL,NULL);
+                                        NULL,timeoutp);
                        }
 #elif defined(OPENSSL_SYS_NETWARE)
                        if(!write_tty) {
@@ -1141,11 +1158,11 @@ SSL_set_tlsext_status_ids(con, ids);
                                        i=select(width,(void *)&readfds,(void *)&writefds,
                                                NULL,&tv);
                                } else  i=select(width,(void *)&readfds,(void *)&writefds,
-                                       NULL,NULL);
+                                       NULL,timeoutp);
                        }
 #else
                        i=select(width,(void *)&readfds,(void *)&writefds,
-                                NULL,NULL);
+                                NULL,timeoutp);
 #endif
                        if ( i < 0)
                                {
@@ -1156,6 +1173,11 @@ SSL_set_tlsext_status_ids(con, ids);
                                }
                        }
 
+               if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
+                       {
+                       BIO_printf(bio_err,"TIMEOUT occured\n");
+                       }
+
                if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
                        {
                        k=SSL_write(con,&(cbuf[cbuf_off]),
@@ -1510,6 +1532,8 @@ static void print_stuff(BIO *bio, SSL *s, int full)
                                                         EVP_PKEY_bits(pktmp));
                EVP_PKEY_free(pktmp);
        }
+       BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
+                       SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
 #ifndef OPENSSL_NO_COMP
        comp=SSL_get_current_compression(s);
        expansion=SSL_get_current_expansion(s);