Fix for CMS/PKCS7 MMA. If RSA decryption fails use a random key and
[oweals/openssl.git] / apps / s_client.c
index 9a0989fc42271612ef63830938765147ff577b34..2f743f0a0af3f2235e41668f99d4c840bf193885 100644 (file)
@@ -221,11 +221,12 @@ static void sc_usage(void)
        BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
        BIO_printf(bio_err," -quiet        - no s_client output\n");
        BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
+       BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
        BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
        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");
@@ -234,7 +235,8 @@ static void sc_usage(void)
        BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
        BIO_printf(bio_err,"                 for those protocols that support it, where\n");
        BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
-       BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
+       BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
+       BIO_printf(bio_err,"                 are supported.\n");
 #ifndef OPENSSL_NO_ENGINE
        BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 #endif
@@ -247,6 +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
@@ -276,14 +279,15 @@ enum
        PROTO_SMTP,
        PROTO_POP3,
        PROTO_IMAP,
-       PROTO_FTP
+       PROTO_FTP,
+       PROTO_XMPP
 };
 
 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;
@@ -315,11 +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
@@ -334,7 +340,10 @@ 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
 
 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
        meth=SSLv23_client_method();
@@ -435,6 +444,8 @@ int MAIN(int argc, char **argv)
                        }
                else if (strcmp(*argv,"-ign_eof") == 0)
                        c_ign_eof=1;
+               else if (strcmp(*argv,"-no_ign_eof") == 0)
+                       c_ign_eof=0;
                else if (strcmp(*argv,"-pause") == 0)
                        c_Pause=1;
                else if (strcmp(*argv,"-debug") == 0)
@@ -480,7 +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)
@@ -526,6 +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;
@@ -547,6 +564,8 @@ int MAIN(int argc, char **argv)
                                starttls_proto = PROTO_IMAP;
                        else if (strcmp(*argv,"ftp") == 0)
                                starttls_proto = PROTO_FTP;
+                       else if (strcmp(*argv, "xmpp") == 0)
+                               starttls_proto = PROTO_XMPP;
                        else
                                goto bad;
                        }
@@ -574,6 +593,13 @@ int MAIN(int argc, char **argv)
                        servername= *(++argv);
                        /* meth=TLSv1_client_method(); */
                        }
+#endif
+#ifndef OPENSSL_NO_JPAKE
+               else if (strcmp(*argv,"-jpake") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       jpake_secret = *++argv;
+                       }
 #endif
                else
                        {
@@ -673,10 +699,27 @@ bad:
                goto end;
                }
 
+#ifndef OPENSSL_NO_ENGINE
+       if (ssl_client_engine)
+               {
+               if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
+                       {
+                       BIO_puts(bio_err, "Error setting client auth engine\n");
+                       ERR_print_errors(bio_err);
+                       ENGINE_free(ssl_client_engine);
+                       goto end;
+                       }
+               ENGINE_free(ssl_client_engine);
+               }
+#endif
+
        if (bugs)
                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.
         */
@@ -787,7 +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)
@@ -811,10 +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 */
@@ -823,8 +865,6 @@ re_start:
        else
                sbio=BIO_new_socket(s,BIO_NOCLOSE);
 
-
-
        if (nbio_test)
                {
                BIO *test;
@@ -868,6 +908,10 @@ SSL_set_tlsext_status_ids(con, ids);
 #endif
                }
 #endif
+#ifndef OPENSSL_NO_JPAKE
+       if (jpake_secret)
+               jpake_client_auth(bio_c_out, sbio, jpake_secret);
+#endif
 
        SSL_set_bio(con,sbio,sbio);
        SSL_set_connect_state(con);
@@ -974,12 +1018,40 @@ SSL_set_tlsext_status_ids(con, ids);
                BIO_printf(sbio,"AUTH TLS\r\n");
                BIO_read(sbio,sbuf,BUFSIZZ);
                }
+       if (starttls_proto == PROTO_XMPP)
+               {
+               int seen = 0;
+               BIO_printf(sbio,"<stream:stream "
+                   "xmlns:stream='http://etherx.jabber.org/streams' "
+                   "xmlns='jabber:client' to='%s' version='1.0'>", host);
+               seen = BIO_read(sbio,mbuf,BUFSIZZ);
+               mbuf[seen] = 0;
+               while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
+                       {
+                       if (strstr(mbuf, "/stream:features>"))
+                               goto shut;
+                       seen = BIO_read(sbio,mbuf,BUFSIZZ);
+                       mbuf[seen] = 0;
+                       }
+               BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
+               seen = BIO_read(sbio,sbuf,BUFSIZZ);
+               sbuf[seen] = 0;
+               if (!strstr(sbuf, "<proceed"))
+                       goto shut;
+               mbuf[0] = 0;
+               }
 
        for (;;)
                {
                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;
@@ -1076,7 +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) {
@@ -1086,11 +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)
                                {
@@ -1101,6 +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]),
@@ -1455,6 +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);