PR: 1997
[openssl.git] / apps / s_client.c
index 0c3545a4ca61a569a66b0aa6e4e2b808974fde45..c97597d448a1bdb426f903ac20d97481348c4414 100644 (file)
@@ -162,6 +162,7 @@ typedef unsigned int u_int;
 #include <openssl/pem.h>
 #include <openssl/rand.h>
 #include <openssl/ocsp.h>
+#include <openssl/bn.h>
 #include "s_apps.h"
 #include "timeouts.h"
 
@@ -204,7 +205,9 @@ static int c_showcerts=0;
 
 static void sc_usage(void);
 static void print_stuff(BIO *berr,SSL *con,int full);
+#ifndef OPENSSL_NO_TLSEXT
 static int ocsp_resp_cb(SSL *s, void *arg);
+#endif
 static BIO *bio_c_out=NULL;
 static int c_quiet=0;
 static int c_ign_eof=0;
@@ -212,7 +215,7 @@ static int c_ign_eof=0;
 #ifndef OPENSSL_NO_PSK
 /* Default PSK identity and key */
 static char *psk_identity="Client_identity";
-static char *psk_key=NULL; /* by default PSK is not used */
+/*char *psk_key=NULL;  by default PSK is not used */
 
 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
        unsigned int max_identity_len, unsigned char *psk,
@@ -234,7 +237,7 @@ static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
                BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 
        /* lookup PSK identity and PSK key based on the given identity hint here */
-       ret = BIO_snprintf(identity, max_identity_len, psk_identity);
+       ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
        if (ret < 0 || (unsigned int)ret > max_identity_len)
                goto out_err;
        if (c_debug)
@@ -305,15 +308,19 @@ 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");
 #ifndef OPENSSL_NO_PSK
        BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
        BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
+# ifndef OPENSSL_NO_JPAKE
+       BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
+# endif
 #endif
        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");
@@ -322,7 +329,8 @@ 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
@@ -365,7 +373,8 @@ enum
        PROTO_SMTP,
        PROTO_POP3,
        PROTO_IMAP,
-       PROTO_FTP
+       PROTO_FTP,
+       PROTO_XMPP
 };
 
 int MAIN(int, char **);
@@ -374,7 +383,6 @@ int MAIN(int argc, char **argv)
        {
        int off=0;
        SSL *con=NULL;
-       X509_STORE *store = NULL;
        int s,k,width,state=0;
        char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
        int cbuf_len,cbuf_off;
@@ -395,23 +403,27 @@ int MAIN(int argc, char **argv)
        SSL_CTX *ctx=NULL;
        int ret=1,in_init=1,i,nbio_test=0;
        int starttls_proto = PROTO_OFF;
-       int prexit = 0, vflags = 0;
+       int prexit = 0;
+       X509_VERIFY_PARAM *vpm = NULL;
+       int badarg = 0;
        const SSL_METHOD *meth=NULL;
        int socket_type=SOCK_STREAM;
        BIO *sbio;
        char *inrand=NULL;
        int mbuf_len=0;
+       struct timeval timeout, *timeoutp;
 #ifndef OPENSSL_NO_ENGINE
        char *engine_id=NULL;
-       ENGINE *e=NULL;
+       char *ssl_client_engine_id=NULL;
+       ENGINE *ssl_client_engine=NULL;
 #endif
+       ENGINE *e=NULL;
 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
        struct timeval tv;
 #if defined(OPENSSL_SYS_BEOS_R5)
        int stdin_set = 0;
 #endif
 #endif
-
 #ifndef OPENSSL_NO_TLSEXT
        char *servername = NULL; 
         tlsextctx tlsextcbp = 
@@ -423,6 +435,9 @@ int MAIN(int argc, char **argv)
        int peerlen = sizeof(peer);
        int enable_timeouts = 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();
@@ -508,10 +523,12 @@ int MAIN(int argc, char **argv)
                        if (--argc < 1) goto bad;
                        cert_format = str2fmt(*(++argv));
                        }
-               else if (strcmp(*argv,"-crl_check") == 0)
-                       vflags |= X509_V_FLAG_CRL_CHECK;
-               else if (strcmp(*argv,"-crl_check_all") == 0)
-                       vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
+               else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
+                       {
+                       if (badarg)
+                               goto bad;
+                       continue;
+                       }
                else if (strcmp(*argv,"-verify_return_error") == 0)
                        verify_return_error = 1;
                else if (strcmp(*argv,"-prexit") == 0)
@@ -525,6 +542,8 @@ 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)
@@ -660,6 +679,8 @@ 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;
                        }
@@ -669,6 +690,11 @@ int MAIN(int argc, char **argv)
                        if (--argc < 1) goto bad;
                        engine_id = *(++argv);
                        }
+               else if (strcmp(*argv,"-ssl_client_engine") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       ssl_client_engine_id = *(++argv);
+                       }
 #endif
                else if (strcmp(*argv,"-rand") == 0)
                        {
@@ -682,6 +708,13 @@ 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
                        {
@@ -699,11 +732,42 @@ bad:
                goto end;
                }
 
+#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
+       if (jpake_secret)
+               {
+               if (psk_key)
+                       {
+                       BIO_printf(bio_err,
+                                  "Can't use JPAKE and PSK together\n");
+                       goto end;
+                       }
+               psk_identity = "JPAKE";
+               }
+
+       if (cipher)
+               {
+               BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
+               goto end;
+               }
+       cipher = "PSK";
+#endif
+
        OpenSSL_add_ssl_algorithms();
        SSL_load_error_strings();
 
 #ifndef OPENSSL_NO_ENGINE
         e = setup_engine(bio_err, engine_id, 1);
+       if (ssl_client_engine_id)
+               {
+               ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
+               if (!ssl_client_engine)
+                       {
+                       BIO_printf(bio_err,
+                                       "Error getting client auth engine\n");
+                       goto end;
+                       }
+               }
+
 #endif
        if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
                {
@@ -771,11 +835,32 @@ bad:
                goto end;
                }
 
+       if (vpm)
+               SSL_CTX_set1_param(ctx, vpm);
+
+#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
+
 #ifndef OPENSSL_NO_PSK
+#ifdef OPENSSL_NO_JPAKE
        if (psk_key != NULL)
+#else
+       if (psk_key != NULL || jpake_secret)
+#endif
                {
                if (c_debug)
-                       BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
+                       BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
                SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
                }
 #endif
@@ -812,8 +897,6 @@ bad:
                /* goto end; */
                }
 
-       store = SSL_CTX_get_cert_store(ctx);
-       X509_STORE_set_flags(store, vflags);
 #ifndef OPENSSL_NO_TLSEXT
        if (servername != NULL)
                {
@@ -897,7 +980,6 @@ 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)
@@ -921,10 +1003,10 @@ re_start:
                        BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
                        }
 
-               if (socket_mtu > 0)
+               if (socket_mtu > 28)
                        {
                        SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
-                       SSL_set_mtu(con, socket_mtu);
+                       SSL_set_mtu(con, socket_mtu - 28);
                        }
                else
                        /* want to do MTU discovery */
@@ -933,8 +1015,6 @@ re_start:
        else
                sbio=BIO_new_socket(s,BIO_NOCLOSE);
 
-
-
        if (nbio_test)
                {
                BIO *test;
@@ -978,6 +1058,10 @@ 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);
@@ -1084,12 +1168,40 @@ 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;
@@ -1194,7 +1306,7 @@ 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) {
@@ -1204,7 +1316,7 @@ 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);
                        }
 #elif defined(OPENSSL_SYS_BEOS_R5)
                        /* Under BeOS-R5 the situation is similar to DOS */
@@ -1222,12 +1334,12 @@ SSL_set_tlsext_status_ids(con, ids);
                                        if (!i && (stdin_set != 1 || !read_tty))
                                                continue;
                                } else  i=select(width,(void *)&readfds,(void *)&writefds,
-                                        NULL,NULL);
+                                        NULL,timeoutp);
                        }
                        (void)fcntl(fileno(stdin), F_SETFL, 0);
 #else
                        i=select(width,(void *)&readfds,(void *)&writefds,
-                                NULL,NULL);
+                                NULL,timeoutp);
 #endif
                        if ( i < 0)
                                {
@@ -1238,6 +1350,11 @@ 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]),
@@ -1497,7 +1614,7 @@ static void print_stuff(BIO *bio, SSL *s, int full)
        char buf[BUFSIZ];
        STACK_OF(X509) *sk;
        STACK_OF(X509_NAME) *sk2;
-       SSL_CIPHER *c;
+       const SSL_CIPHER *c;
        X509_NAME *xn;
        int j,i;
 #ifndef OPENSSL_NO_COMP
@@ -1621,6 +1738,8 @@ static void print_stuff(BIO *bio, SSL *s, int full)
        (void)BIO_flush(bio);
        }
 
+#ifndef OPENSSL_NO_TLSEXT
+
 static int ocsp_resp_cb(SSL *s, void *arg)
        {
        const unsigned char *p;
@@ -1646,3 +1765,5 @@ static int ocsp_resp_cb(SSL *s, void *arg)
        OCSP_RESPONSE_free(rsp);
        return 1;
        }
+
+#endif