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1.2 ! doug 1: /* $OpenBSD: s_client.c,v 1.1 2014/08/26 17:47:25 jsing Exp $ */
1.1 jsing 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young (eay@cryptsoft.com).
7: * The implementation was written so as to conform with Netscapes SSL.
8: *
9: * This library is free for commercial and non-commercial use as long as
10: * the following conditions are aheared to. The following conditions
11: * apply to all code found in this distribution, be it the RC4, RSA,
12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13: * included with this distribution is covered by the same copyright terms
14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15: *
16: * Copyright remains Eric Young's, and as such any Copyright notices in
17: * the code are not to be removed.
18: * If this package is used in a product, Eric Young should be given attribution
19: * as the author of the parts of the library used.
20: * This can be in the form of a textual message at program startup or
21: * in documentation (online or textual) provided with the package.
22: *
23: * Redistribution and use in source and binary forms, with or without
24: * modification, are permitted provided that the following conditions
25: * are met:
26: * 1. Redistributions of source code must retain the copyright
27: * notice, this list of conditions and the following disclaimer.
28: * 2. Redistributions in binary form must reproduce the above copyright
29: * notice, this list of conditions and the following disclaimer in the
30: * documentation and/or other materials provided with the distribution.
31: * 3. All advertising materials mentioning features or use of this software
32: * must display the following acknowledgement:
33: * "This product includes cryptographic software written by
34: * Eric Young (eay@cryptsoft.com)"
35: * The word 'cryptographic' can be left out if the rouines from the library
36: * being used are not cryptographic related :-).
37: * 4. If you include any Windows specific code (or a derivative thereof) from
38: * the apps directory (application code) you must include an acknowledgement:
39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40: *
41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51: * SUCH DAMAGE.
52: *
53: * The licence and distribution terms for any publically available version or
54: * derivative of this code cannot be changed. i.e. this code cannot simply be
55: * copied and put under another distribution licence
56: * [including the GNU Public Licence.]
57: */
58: /* ====================================================================
59: * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60: *
61: * Redistribution and use in source and binary forms, with or without
62: * modification, are permitted provided that the following conditions
63: * are met:
64: *
65: * 1. Redistributions of source code must retain the above copyright
66: * notice, this list of conditions and the following disclaimer.
67: *
68: * 2. Redistributions in binary form must reproduce the above copyright
69: * notice, this list of conditions and the following disclaimer in
70: * the documentation and/or other materials provided with the
71: * distribution.
72: *
73: * 3. All advertising materials mentioning features or use of this
74: * software must display the following acknowledgment:
75: * "This product includes software developed by the OpenSSL Project
76: * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77: *
78: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79: * endorse or promote products derived from this software without
80: * prior written permission. For written permission, please contact
81: * openssl-core@openssl.org.
82: *
83: * 5. Products derived from this software may not be called "OpenSSL"
84: * nor may "OpenSSL" appear in their names without prior written
85: * permission of the OpenSSL Project.
86: *
87: * 6. Redistributions of any form whatsoever must retain the following
88: * acknowledgment:
89: * "This product includes software developed by the OpenSSL Project
90: * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91: *
92: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103: * OF THE POSSIBILITY OF SUCH DAMAGE.
104: * ====================================================================
105: *
106: * This product includes cryptographic software written by Eric Young
107: * (eay@cryptsoft.com). This product includes software written by Tim
108: * Hudson (tjh@cryptsoft.com).
109: *
110: */
111: /* ====================================================================
112: * Copyright 2005 Nokia. All rights reserved.
113: *
114: * The portions of the attached software ("Contribution") is developed by
115: * Nokia Corporation and is licensed pursuant to the OpenSSL open source
116: * license.
117: *
118: * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119: * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120: * support (see RFC 4279) to OpenSSL.
121: *
122: * No patent licenses or other rights except those expressly stated in
123: * the OpenSSL open source license shall be deemed granted or received
124: * expressly, by implication, estoppel, or otherwise.
125: *
126: * No assurances are provided by Nokia that the Contribution does not
127: * infringe the patent or other intellectual property rights of any third
128: * party or that the license provides you with all the necessary rights
129: * to make use of the Contribution.
130: *
131: * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132: * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133: * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134: * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
135: * OTHERWISE.
136: */
137:
138: #include <sys/types.h>
139: #include <sys/ioctl.h>
140: #include <sys/select.h>
141: #include <sys/socket.h>
142:
143: #include <netinet/in.h>
144:
145: #include <assert.h>
146: #include <ctype.h>
147: #include <limits.h>
148: #include <netdb.h>
149: #include <stdio.h>
150: #include <stdlib.h>
151: #include <limits.h>
152: #include <string.h>
153: #include <unistd.h>
154:
155: #include "apps.h"
156:
157: #include <openssl/bn.h>
158: #include <openssl/err.h>
159: #include <openssl/ocsp.h>
160: #include <openssl/pem.h>
161: #include <openssl/rand.h>
162: #include <openssl/ssl.h>
163: #include <openssl/x509.h>
164:
165: #include "s_apps.h"
166: #include "timeouts.h"
167:
168: /*#define SSL_HOST_NAME "www.netscape.com" */
169: /*#define SSL_HOST_NAME "193.118.187.102" */
170: #define SSL_HOST_NAME "localhost"
171:
172: /*#define TEST_CERT "client.pem" *//* no default cert. */
173:
174: #define BUFSIZZ 1024*8
175:
176: extern int verify_depth;
177: extern int verify_error;
178: extern int verify_return_error;
179:
180: static int c_nbio = 0;
181: static int c_Pause = 0;
182: static int c_debug = 0;
183: #ifndef OPENSSL_NO_TLSEXT
184: static int c_tlsextdebug = 0;
185: static int c_status_req = 0;
186: #endif
187: static int c_msg = 0;
188: static int c_showcerts = 0;
189:
190: static char *keymatexportlabel = NULL;
191: static int keymatexportlen = 20;
192:
193: static void sc_usage(void);
194: static void print_stuff(BIO * berr, SSL * con, int full);
195: #ifndef OPENSSL_NO_TLSEXT
196: static int ocsp_resp_cb(SSL * s, void *arg);
197: #endif
198: static BIO *bio_c_out = NULL;
199: static int c_quiet = 0;
200: static int c_ign_eof = 0;
201:
202:
203: static void
204: sc_usage(void)
205: {
206: BIO_printf(bio_err, "usage: s_client args\n");
207: BIO_printf(bio_err, "\n");
208: BIO_printf(bio_err, " -4 - Force IPv4\n");
209: BIO_printf(bio_err, " -6 - Force IPv6\n");
210: BIO_printf(bio_err, " -host host - use -connect instead\n");
211: BIO_printf(bio_err, " -port port - use -connect instead\n");
212: BIO_printf(bio_err, " -connect host:port - who to connect to (default is %s:%s)\n", SSL_HOST_NAME, PORT_STR);
213:
214: BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n");
215: BIO_printf(bio_err, " -cert arg - certificate file to use, PEM format assumed\n");
216: BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n");
217: BIO_printf(bio_err, " -key arg - Private key file to use, in cert file if\n");
218: BIO_printf(bio_err, " not specified but cert file is.\n");
219: BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n");
220: BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n");
221: BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
222: BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
223: BIO_printf(bio_err, " -reconnect - Drop and re-make the connection with the same Session-ID\n");
224: BIO_printf(bio_err, " -pause - sleep(1) after each read(2) and write(2) system call\n");
225: BIO_printf(bio_err, " -showcerts - show all certificates in the chain\n");
226: BIO_printf(bio_err, " -debug - extra output\n");
227: BIO_printf(bio_err, " -msg - Show protocol messages\n");
228: BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n");
229: BIO_printf(bio_err, " -state - print the 'ssl' states\n");
230: BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
231: BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n");
232: BIO_printf(bio_err, " -quiet - no s_client output\n");
233: BIO_printf(bio_err, " -ign_eof - ignore input eof (default when -quiet)\n");
234: BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n");
235: BIO_printf(bio_err, " -ssl3 - just use SSLv3\n");
236: BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n");
237: BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n");
238: BIO_printf(bio_err, " -tls1 - just use TLSv1\n");
239: BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n");
240: BIO_printf(bio_err, " -mtu - set the link layer MTU\n");
241: BIO_printf(bio_err, " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
242: BIO_printf(bio_err, " -bugs - Switch on all SSL implementation bug workarounds\n");
243: BIO_printf(bio_err, " -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
244: BIO_printf(bio_err, " command to see what is available\n");
245: BIO_printf(bio_err, " -starttls prot - use the STARTTLS command before starting TLS\n");
246: BIO_printf(bio_err, " for those protocols that support it, where\n");
247: BIO_printf(bio_err, " 'prot' defines which one to assume. Currently,\n");
248: BIO_printf(bio_err, " only \"smtp\", \"lmtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
249: BIO_printf(bio_err, " are supported.\n");
250: #ifndef OPENSSL_NO_ENGINE
251: BIO_printf(bio_err, " -engine id - Initialise and use the specified engine\n");
252: #endif
253: BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
254: BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n");
255: #ifndef OPENSSL_NO_TLSEXT
256: BIO_printf(bio_err, " -servername host - Set TLS extension servername in ClientHello\n");
257: BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n");
258: BIO_printf(bio_err, " -status - request certificate status from server\n");
259: BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n");
260: #ifndef OPENSSL_NO_NEXTPROTONEG
261: BIO_printf(bio_err, " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
262: #endif
263: #endif
264: #ifndef OPENSSL_NO_SRTP
265: BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
266: #endif
267: BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n");
268: BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
269: }
270:
271: #ifndef OPENSSL_NO_TLSEXT
272:
273: /* This is a context that we pass to callbacks */
274: typedef struct tlsextctx_st {
275: BIO *biodebug;
276: int ack;
277: } tlsextctx;
278:
279:
280: static int
281: ssl_servername_cb(SSL * s, int *ad, void *arg)
282: {
283: tlsextctx *p = (tlsextctx *) arg;
284: const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
285: if (SSL_get_servername_type(s) != -1)
286: p->ack = !SSL_session_reused(s) && hn != NULL;
287: else
288: BIO_printf(bio_err, "Can't use SSL_get_servername\n");
289:
290: return SSL_TLSEXT_ERR_OK;
291: }
292:
293: #ifndef OPENSSL_NO_SRTP
294: char *srtp_profiles = NULL;
295: #endif
296:
297: #ifndef OPENSSL_NO_NEXTPROTONEG
298: /* This the context that we pass to next_proto_cb */
299: typedef struct tlsextnextprotoctx_st {
300: unsigned char *data;
301: unsigned short len;
302: int status;
303: } tlsextnextprotoctx;
304:
305: static tlsextnextprotoctx next_proto;
306:
307: static int
308: next_proto_cb(SSL * s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
309: {
310: tlsextnextprotoctx *ctx = arg;
311:
312: if (!c_quiet) {
313: /* We can assume that |in| is syntactically valid. */
314: unsigned i;
315: BIO_printf(bio_c_out, "Protocols advertised by server: ");
316: for (i = 0; i < inlen;) {
317: if (i)
318: BIO_write(bio_c_out, ", ", 2);
319: BIO_write(bio_c_out, &in[i + 1], in[i]);
320: i += in[i] + 1;
321: }
322: BIO_write(bio_c_out, "\n", 1);
323: }
324: ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
325: return SSL_TLSEXT_ERR_OK;
326: }
327: #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
328: #endif
329:
330: enum {
331: PROTO_OFF = 0,
332: PROTO_SMTP,
333: PROTO_LMTP,
334: PROTO_POP3,
335: PROTO_IMAP,
336: PROTO_FTP,
337: PROTO_XMPP
338: };
339:
340: int s_client_main(int, char **);
341:
342: int
343: s_client_main(int argc, char **argv)
344: {
345: unsigned int off = 0, clr = 0;
346: SSL *con = NULL;
347: int s, k, width, state = 0, af = AF_UNSPEC;
348: char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
349: int cbuf_len, cbuf_off;
350: int sbuf_len, sbuf_off;
351: fd_set readfds, writefds;
352: char *port = PORT_STR;
353: int full_log = 1;
354: char *host = SSL_HOST_NAME;
355: char *cert_file = NULL, *key_file = NULL;
356: int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
357: char *passarg = NULL, *pass = NULL;
358: X509 *cert = NULL;
359: EVP_PKEY *key = NULL;
360: char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
361: int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
362: int crlf = 0;
363: int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
364: SSL_CTX *ctx = NULL;
365: int ret = 1, in_init = 1, i, nbio_test = 0;
366: int starttls_proto = PROTO_OFF;
367: int prexit = 0;
368: X509_VERIFY_PARAM *vpm = NULL;
369: int badarg = 0;
370: const SSL_METHOD *meth = NULL;
371: int socket_type = SOCK_STREAM;
372: BIO *sbio;
373: int mbuf_len = 0;
374: struct timeval timeout, *timeoutp;
375: const char *errstr = NULL;
376: #ifndef OPENSSL_NO_ENGINE
377: char *engine_id = NULL;
378: char *ssl_client_engine_id = NULL;
379: ENGINE *ssl_client_engine = NULL;
380: #endif
381: ENGINE *e = NULL;
382: #ifndef OPENSSL_NO_TLSEXT
383: char *servername = NULL;
384: tlsextctx tlsextcbp =
385: {NULL, 0};
386: #ifndef OPENSSL_NO_NEXTPROTONEG
387: const char *next_proto_neg_in = NULL;
388: #endif
389: #endif
390: char *sess_in = NULL;
391: char *sess_out = NULL;
392: struct sockaddr peer;
393: int peerlen = sizeof(peer);
394: int enable_timeouts = 0;
395: long socket_mtu = 0;
396:
397: meth = SSLv23_client_method();
398:
399: c_Pause = 0;
400: c_quiet = 0;
401: c_ign_eof = 0;
402: c_debug = 0;
403: c_msg = 0;
404: c_showcerts = 0;
405:
406: if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
407: ((sbuf = malloc(BUFSIZZ)) == NULL) ||
408: ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
409: BIO_printf(bio_err, "out of memory\n");
410: goto end;
411: }
412: verify_depth = 0;
413: verify_error = X509_V_OK;
414: c_nbio = 0;
415:
416: argc--;
417: argv++;
418: while (argc >= 1) {
419: if (strcmp(*argv, "-host") == 0) {
420: if (--argc < 1)
421: goto bad;
422: host = *(++argv);
423: } else if (strcmp(*argv, "-port") == 0) {
424: if (--argc < 1)
425: goto bad;
426: port = *(++argv);
427: if (port == NULL || *port == '\0')
428: goto bad;
429: } else if (strcmp(*argv, "-connect") == 0) {
430: if (--argc < 1)
431: goto bad;
432: if (!extract_host_port(*(++argv), &host, NULL, &port))
433: goto bad;
434: } else if (strcmp(*argv, "-verify") == 0) {
435: verify = SSL_VERIFY_PEER;
436: if (--argc < 1)
437: goto bad;
438: verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
439: if (errstr)
440: goto bad;
441: BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
442: } else if (strcmp(*argv, "-cert") == 0) {
443: if (--argc < 1)
444: goto bad;
445: cert_file = *(++argv);
446: } else if (strcmp(*argv, "-sess_out") == 0) {
447: if (--argc < 1)
448: goto bad;
449: sess_out = *(++argv);
450: } else if (strcmp(*argv, "-sess_in") == 0) {
451: if (--argc < 1)
452: goto bad;
453: sess_in = *(++argv);
454: } else if (strcmp(*argv, "-certform") == 0) {
455: if (--argc < 1)
456: goto bad;
457: cert_format = str2fmt(*(++argv));
458: } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
459: if (badarg)
460: goto bad;
461: continue;
462: } else if (strcmp(*argv, "-verify_return_error") == 0)
463: verify_return_error = 1;
464: else if (strcmp(*argv, "-prexit") == 0)
465: prexit = 1;
466: else if (strcmp(*argv, "-crlf") == 0)
467: crlf = 1;
468: else if (strcmp(*argv, "-quiet") == 0) {
469: c_quiet = 1;
470: c_ign_eof = 1;
471: } else if (strcmp(*argv, "-ign_eof") == 0)
472: c_ign_eof = 1;
473: else if (strcmp(*argv, "-no_ign_eof") == 0)
474: c_ign_eof = 0;
475: else if (strcmp(*argv, "-pause") == 0)
476: c_Pause = 1;
477: else if (strcmp(*argv, "-debug") == 0)
478: c_debug = 1;
479: #ifndef OPENSSL_NO_TLSEXT
480: else if (strcmp(*argv, "-tlsextdebug") == 0)
481: c_tlsextdebug = 1;
482: else if (strcmp(*argv, "-status") == 0)
483: c_status_req = 1;
484: #endif
485: else if (strcmp(*argv, "-msg") == 0)
486: c_msg = 1;
487: else if (strcmp(*argv, "-showcerts") == 0)
488: c_showcerts = 1;
489: else if (strcmp(*argv, "-nbio_test") == 0)
490: nbio_test = 1;
491: else if (strcmp(*argv, "-state") == 0)
492: state = 1;
493: else if (strcmp(*argv, "-ssl3") == 0)
494: meth = SSLv3_client_method();
495: else if (strcmp(*argv, "-tls1_2") == 0)
496: meth = TLSv1_2_client_method();
497: else if (strcmp(*argv, "-tls1_1") == 0)
498: meth = TLSv1_1_client_method();
499: else if (strcmp(*argv, "-tls1") == 0)
500: meth = TLSv1_client_method();
501: #ifndef OPENSSL_NO_DTLS1
502: else if (strcmp(*argv, "-dtls1") == 0) {
503: meth = DTLSv1_client_method();
504: socket_type = SOCK_DGRAM;
505: } else if (strcmp(*argv, "-timeout") == 0)
506: enable_timeouts = 1;
507: else if (strcmp(*argv, "-mtu") == 0) {
508: if (--argc < 1)
509: goto bad;
510: socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
511: if (errstr)
512: goto bad;
513: }
514: #endif
515: else if (strcmp(*argv, "-bugs") == 0)
516: bugs = 1;
517: else if (strcmp(*argv, "-keyform") == 0) {
518: if (--argc < 1)
519: goto bad;
520: key_format = str2fmt(*(++argv));
521: } else if (strcmp(*argv, "-pass") == 0) {
522: if (--argc < 1)
523: goto bad;
524: passarg = *(++argv);
525: } else if (strcmp(*argv, "-key") == 0) {
526: if (--argc < 1)
527: goto bad;
528: key_file = *(++argv);
529: } else if (strcmp(*argv, "-reconnect") == 0) {
530: reconnect = 5;
531: } else if (strcmp(*argv, "-CApath") == 0) {
532: if (--argc < 1)
533: goto bad;
534: CApath = *(++argv);
535: } else if (strcmp(*argv, "-CAfile") == 0) {
536: if (--argc < 1)
537: goto bad;
538: CAfile = *(++argv);
539: } else if (strcmp(*argv, "-no_tls1_2") == 0)
540: off |= SSL_OP_NO_TLSv1_2;
541: else if (strcmp(*argv, "-no_tls1_1") == 0)
542: off |= SSL_OP_NO_TLSv1_1;
543: else if (strcmp(*argv, "-no_tls1") == 0)
544: off |= SSL_OP_NO_TLSv1;
545: else if (strcmp(*argv, "-no_ssl3") == 0)
546: off |= SSL_OP_NO_SSLv3;
547: else if (strcmp(*argv, "-no_ssl2") == 0)
548: off |= SSL_OP_NO_SSLv2;
549: else if (strcmp(*argv, "-no_comp") == 0) {
550: off |= SSL_OP_NO_COMPRESSION;
551: }
552: #ifndef OPENSSL_NO_TLSEXT
553: else if (strcmp(*argv, "-no_ticket") == 0) {
554: off |= SSL_OP_NO_TICKET;
555: }
556: #ifndef OPENSSL_NO_NEXTPROTONEG
557: else if (strcmp(*argv, "-nextprotoneg") == 0) {
558: if (--argc < 1)
559: goto bad;
560: next_proto_neg_in = *(++argv);
561: }
562: #endif
563: #endif
564: else if (strcmp(*argv, "-serverpref") == 0)
565: off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
566: else if (strcmp(*argv, "-legacy_renegotiation") == 0)
567: ; /* no-op */
568: else if (strcmp(*argv, "-legacy_server_connect") == 0) {
569: off |= SSL_OP_LEGACY_SERVER_CONNECT;
570: } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
571: clr |= SSL_OP_LEGACY_SERVER_CONNECT;
572: } else if (strcmp(*argv, "-cipher") == 0) {
573: if (--argc < 1)
574: goto bad;
575: cipher = *(++argv);
576: }
577: else if (strcmp(*argv, "-nbio") == 0) {
578: c_nbio = 1;
579: }
580: else if (strcmp(*argv, "-starttls") == 0) {
581: if (--argc < 1)
582: goto bad;
583: ++argv;
584: if (strcmp(*argv, "smtp") == 0)
585: starttls_proto = PROTO_SMTP;
586: else if (strcmp(*argv, "lmtp") == 0)
587: starttls_proto = PROTO_LMTP;
588: else if (strcmp(*argv, "pop3") == 0)
589: starttls_proto = PROTO_POP3;
590: else if (strcmp(*argv, "imap") == 0)
591: starttls_proto = PROTO_IMAP;
592: else if (strcmp(*argv, "ftp") == 0)
593: starttls_proto = PROTO_FTP;
594: else if (strcmp(*argv, "xmpp") == 0)
595: starttls_proto = PROTO_XMPP;
596: else
597: goto bad;
598: }
599: #ifndef OPENSSL_NO_ENGINE
600: else if (strcmp(*argv, "-engine") == 0) {
601: if (--argc < 1)
602: goto bad;
603: engine_id = *(++argv);
604: } else if (strcmp(*argv, "-ssl_client_engine") == 0) {
605: if (--argc < 1)
606: goto bad;
607: ssl_client_engine_id = *(++argv);
608: }
609: #endif
610: else if (strcmp(*argv, "-4") == 0) {
611: af = AF_INET;
612: } else if (strcmp(*argv, "-6") == 0) {
613: af = AF_INET6;
614: }
615: #ifndef OPENSSL_NO_TLSEXT
616: else if (strcmp(*argv, "-servername") == 0) {
617: if (--argc < 1)
618: goto bad;
619: servername = *(++argv);
620: /* meth=TLSv1_client_method(); */
621: }
622: #endif
623: #ifndef OPENSSL_NO_SRTP
624: else if (strcmp(*argv, "-use_srtp") == 0) {
625: if (--argc < 1)
626: goto bad;
627: srtp_profiles = *(++argv);
628: }
629: #endif
630: else if (strcmp(*argv, "-keymatexport") == 0) {
631: if (--argc < 1)
632: goto bad;
633: keymatexportlabel = *(++argv);
634: } else if (strcmp(*argv, "-keymatexportlen") == 0) {
635: if (--argc < 1)
636: goto bad;
637: keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
638: if (errstr)
639: goto bad;
640: } else {
641: BIO_printf(bio_err, "unknown option %s\n", *argv);
642: badop = 1;
643: break;
644: }
645: argc--;
646: argv++;
647: }
648: if (badop) {
649: bad:
650: if (errstr)
651: BIO_printf(bio_err, "invalid argument %s: %s\n",
652: *argv, errstr);
653: else
654: sc_usage();
655: goto end;
656: }
657:
658: #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
659: next_proto.status = -1;
660: if (next_proto_neg_in) {
661: next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
662: if (next_proto.data == NULL) {
663: BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
664: goto end;
665: }
666: } else
667: next_proto.data = NULL;
668: #endif
669:
670: #ifndef OPENSSL_NO_ENGINE
671: e = setup_engine(bio_err, engine_id, 1);
672: if (ssl_client_engine_id) {
673: ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
674: if (!ssl_client_engine) {
675: BIO_printf(bio_err,
676: "Error getting client auth engine\n");
677: goto end;
678: }
679: }
680: #endif
681: if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
682: BIO_printf(bio_err, "Error getting password\n");
683: goto end;
684: }
685: if (key_file == NULL)
686: key_file = cert_file;
687:
688:
689: if (key_file) {
690:
691: key = load_key(bio_err, key_file, key_format, 0, pass, e,
692: "client certificate private key file");
693: if (!key) {
694: ERR_print_errors(bio_err);
695: goto end;
696: }
697: }
698: if (cert_file) {
699: cert = load_cert(bio_err, cert_file, cert_format,
700: NULL, e, "client certificate file");
701:
702: if (!cert) {
703: ERR_print_errors(bio_err);
704: goto end;
705: }
706: }
707: if (bio_c_out == NULL) {
708: if (c_quiet && !c_debug && !c_msg) {
709: bio_c_out = BIO_new(BIO_s_null());
710: } else {
711: if (bio_c_out == NULL)
712: bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
713: }
714: }
715:
716: ctx = SSL_CTX_new(meth);
717: if (ctx == NULL) {
718: ERR_print_errors(bio_err);
719: goto end;
720: }
721: if (vpm)
722: SSL_CTX_set1_param(ctx, vpm);
723:
724: #ifndef OPENSSL_NO_ENGINE
725: if (ssl_client_engine) {
726: if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
727: BIO_puts(bio_err, "Error setting client auth engine\n");
728: ERR_print_errors(bio_err);
729: ENGINE_free(ssl_client_engine);
730: goto end;
731: }
732: ENGINE_free(ssl_client_engine);
733: }
734: #endif
735:
736: #ifndef OPENSSL_NO_SRTP
737: if (srtp_profiles != NULL)
738: SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
739: #endif
740: if (bugs)
741: SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
742: else
743: SSL_CTX_set_options(ctx, off);
744:
745: if (clr)
746: SSL_CTX_clear_options(ctx, clr);
747: /*
748: * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
749: * read ahead solves this problem.
750: */
751: if (socket_type == SOCK_DGRAM)
752: SSL_CTX_set_read_ahead(ctx, 1);
753:
754: #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
755: if (next_proto.data)
756: SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
757: #endif
758:
759: if (state)
760: SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
761: if (cipher != NULL)
762: if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
763: BIO_printf(bio_err, "error setting cipher list\n");
764: ERR_print_errors(bio_err);
765: goto end;
766: }
767:
768: SSL_CTX_set_verify(ctx, verify, verify_callback);
769: if (!set_cert_key_stuff(ctx, cert, key))
770: goto end;
771:
772: if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
773: (!SSL_CTX_set_default_verify_paths(ctx))) {
774: /*
775: * BIO_printf(bio_err,"error setting default verify
776: * locations\n");
777: */
778: ERR_print_errors(bio_err);
779: /* goto end; */
780: }
781: #ifndef OPENSSL_NO_TLSEXT
782: if (servername != NULL) {
783: tlsextcbp.biodebug = bio_err;
784: SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
785: SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
786: }
787: #endif
788:
789: con = SSL_new(ctx);
790: if (sess_in) {
791: SSL_SESSION *sess;
792: BIO *stmp = BIO_new_file(sess_in, "r");
793: if (!stmp) {
794: BIO_printf(bio_err, "Can't open session file %s\n",
795: sess_in);
796: ERR_print_errors(bio_err);
797: goto end;
798: }
799: sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
800: BIO_free(stmp);
801: if (!sess) {
802: BIO_printf(bio_err, "Can't open session file %s\n",
803: sess_in);
804: ERR_print_errors(bio_err);
805: goto end;
806: }
807: SSL_set_session(con, sess);
808: SSL_SESSION_free(sess);
809: }
810: #ifndef OPENSSL_NO_TLSEXT
811: if (servername != NULL) {
812: if (!SSL_set_tlsext_host_name(con, servername)) {
813: BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
814: ERR_print_errors(bio_err);
815: goto end;
816: }
817: }
818: #endif
819: /* SSL_set_cipher_list(con,"RC4-MD5"); */
820:
821: re_start:
822:
823: if (init_client(&s, host, port, socket_type, af) == 0) {
824: BIO_printf(bio_err, "connect:errno=%d\n", errno);
825: shutdown(s, SHUT_RD);
826: close(s);
827: goto end;
828: }
829: BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
830:
831: if (c_nbio) {
832: unsigned long l = 1;
833: BIO_printf(bio_c_out, "turning on non blocking io\n");
834: if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) {
835: ERR_print_errors(bio_err);
836: goto end;
837: }
838: }
839: if (c_Pause & 0x01)
840: SSL_set_debug(con, 1);
841:
842: if (SSL_version(con) == DTLS1_VERSION) {
843:
844: sbio = BIO_new_dgram(s, BIO_NOCLOSE);
845: if (getsockname(s, &peer, (void *) &peerlen) < 0) {
846: BIO_printf(bio_err, "getsockname:errno=%d\n",
847: errno);
848: shutdown(s, SHUT_RD);
849: close(s);
850: goto end;
851: }
852: (void) BIO_ctrl_set_connected(sbio, 1, &peer);
853:
854: if (enable_timeouts) {
855: timeout.tv_sec = 0;
856: timeout.tv_usec = DGRAM_RCV_TIMEOUT;
857: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
858:
859: timeout.tv_sec = 0;
860: timeout.tv_usec = DGRAM_SND_TIMEOUT;
861: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
862: }
863: if (socket_mtu > 28) {
864: SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
865: SSL_set_mtu(con, socket_mtu - 28);
866: } else
867: /* want to do MTU discovery */
868: BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
869: } else
870: sbio = BIO_new_socket(s, BIO_NOCLOSE);
871:
872: if (nbio_test) {
873: BIO *test;
874:
875: test = BIO_new(BIO_f_nbio_test());
876: sbio = BIO_push(test, sbio);
877: }
878: if (c_debug) {
879: SSL_set_debug(con, 1);
880: BIO_set_callback(sbio, bio_dump_callback);
881: BIO_set_callback_arg(sbio, (char *) bio_c_out);
882: }
883: if (c_msg) {
884: SSL_set_msg_callback(con, msg_cb);
885: SSL_set_msg_callback_arg(con, bio_c_out);
886: }
887: #ifndef OPENSSL_NO_TLSEXT
888: if (c_tlsextdebug) {
889: SSL_set_tlsext_debug_callback(con, tlsext_cb);
890: SSL_set_tlsext_debug_arg(con, bio_c_out);
891: }
892: if (c_status_req) {
893: SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
894: SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
895: SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
896: }
897: #endif
898:
899: SSL_set_bio(con, sbio, sbio);
900: SSL_set_connect_state(con);
901:
902: /* ok, lets connect */
903: width = SSL_get_fd(con) + 1;
904:
905: read_tty = 1;
906: write_tty = 0;
907: tty_on = 0;
908: read_ssl = 1;
909: write_ssl = 1;
910:
911: cbuf_len = 0;
912: cbuf_off = 0;
913: sbuf_len = 0;
914: sbuf_off = 0;
915:
916: /* This is an ugly hack that does a lot of assumptions */
917: /*
918: * We do have to handle multi-line responses which may come in a
919: * single packet or not. We therefore have to use BIO_gets() which
920: * does need a buffering BIO. So during the initial chitchat we do
921: * push a buffering BIO into the chain that is removed again later on
922: * to not disturb the rest of the s_client operation.
923: */
924: if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
925: int foundit = 0;
926: BIO *fbio = BIO_new(BIO_f_buffer());
927: BIO_push(fbio, sbio);
928: /* wait for multi-line response to end from SMTP */
929: do {
930: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
931: }
932: while (mbuf_len > 3 && mbuf[3] == '-');
933: /* STARTTLS command requires EHLO... */
934: BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
935: starttls_proto == PROTO_SMTP ? 'E' : 'L');
936: (void) BIO_flush(fbio);
937: /* wait for multi-line response to end EHLO SMTP response */
938: do {
939: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
940: if (strstr(mbuf, "STARTTLS"))
941: foundit = 1;
942: }
943: while (mbuf_len > 3 && mbuf[3] == '-');
944: (void) BIO_flush(fbio);
945: BIO_pop(fbio);
946: BIO_free(fbio);
947: if (!foundit)
948: BIO_printf(bio_err,
949: "didn't found starttls in server response,"
950: " try anyway...\n");
951: BIO_printf(sbio, "STARTTLS\r\n");
952: BIO_read(sbio, sbuf, BUFSIZZ);
953: } else if (starttls_proto == PROTO_POP3) {
954: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
955: if (mbuf_len == -1) {
956: BIO_printf(bio_err, "BIO_read failed\n");
957: goto end;
958: }
959: BIO_printf(sbio, "STLS\r\n");
960: BIO_read(sbio, sbuf, BUFSIZZ);
961: } else if (starttls_proto == PROTO_IMAP) {
962: int foundit = 0;
963: BIO *fbio = BIO_new(BIO_f_buffer());
964: BIO_push(fbio, sbio);
965: BIO_gets(fbio, mbuf, BUFSIZZ);
966: /* STARTTLS command requires CAPABILITY... */
967: BIO_printf(fbio, ". CAPABILITY\r\n");
968: (void) BIO_flush(fbio);
969: /* wait for multi-line CAPABILITY response */
970: do {
971: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
972: if (strstr(mbuf, "STARTTLS"))
973: foundit = 1;
974: }
975: while (mbuf_len > 3 && mbuf[0] != '.');
976: (void) BIO_flush(fbio);
977: BIO_pop(fbio);
978: BIO_free(fbio);
979: if (!foundit)
980: BIO_printf(bio_err,
981: "didn't found STARTTLS in server response,"
982: " try anyway...\n");
983: BIO_printf(sbio, ". STARTTLS\r\n");
984: BIO_read(sbio, sbuf, BUFSIZZ);
985: } else if (starttls_proto == PROTO_FTP) {
986: BIO *fbio = BIO_new(BIO_f_buffer());
987: BIO_push(fbio, sbio);
988: /* wait for multi-line response to end from FTP */
989: do {
990: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
991: }
992: while (mbuf_len > 3 && mbuf[3] == '-');
993: (void) BIO_flush(fbio);
994: BIO_pop(fbio);
995: BIO_free(fbio);
996: BIO_printf(sbio, "AUTH TLS\r\n");
997: BIO_read(sbio, sbuf, BUFSIZZ);
998: }
999: if (starttls_proto == PROTO_XMPP) {
1000: int seen = 0;
1001: BIO_printf(sbio, "<stream:stream "
1002: "xmlns:stream='http://etherx.jabber.org/streams' "
1003: "xmlns='jabber:client' to='%s' version='1.0'>", host);
1004: seen = BIO_read(sbio, mbuf, BUFSIZZ);
1005: mbuf[seen] = 0;
1006: while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) {
1007: if (strstr(mbuf, "/stream:features>"))
1008: goto shut;
1009: seen = BIO_read(sbio, mbuf, BUFSIZZ);
1010: mbuf[seen] = 0;
1011: }
1012: BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1013: seen = BIO_read(sbio, sbuf, BUFSIZZ);
1014: sbuf[seen] = 0;
1015: if (!strstr(sbuf, "<proceed"))
1016: goto shut;
1017: mbuf[0] = 0;
1018: }
1019: for (;;) {
1020: FD_ZERO(&readfds);
1021: FD_ZERO(&writefds);
1022:
1023: if ((SSL_version(con) == DTLS1_VERSION) &&
1024: DTLSv1_get_timeout(con, &timeout))
1025: timeoutp = &timeout;
1026: else
1027: timeoutp = NULL;
1028:
1029: if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
1030: in_init = 1;
1031: tty_on = 0;
1032: } else {
1033: tty_on = 1;
1034: if (in_init) {
1035: in_init = 0;
1036: if (sess_out) {
1037: BIO *stmp = BIO_new_file(sess_out, "w");
1038: if (stmp) {
1039: PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1040: BIO_free(stmp);
1041: } else
1042: BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1043: }
1044: print_stuff(bio_c_out, con, full_log);
1045: if (full_log > 0)
1046: full_log--;
1047:
1048: if (starttls_proto) {
1049: BIO_write(bio_err, mbuf, mbuf_len);
1050: /* We don't need to know any more */
1051: starttls_proto = PROTO_OFF;
1052: }
1053: if (reconnect) {
1054: reconnect--;
1055: BIO_printf(bio_c_out, "drop connection and then reconnect\n");
1056: SSL_shutdown(con);
1057: SSL_set_connect_state(con);
1058: shutdown(SSL_get_fd(con), SHUT_RD);
1059: close(SSL_get_fd(con));
1060: goto re_start;
1061: }
1062: }
1063: }
1064:
1065: ssl_pending = read_ssl && SSL_pending(con);
1066:
1067: /* XXX should add tests for fd_set overflow */
1068:
1069: if (!ssl_pending) {
1070: if (tty_on) {
1071: if (read_tty)
1072: FD_SET(fileno(stdin), &readfds);
1073: if (write_tty)
1074: FD_SET(fileno(stdout), &writefds);
1075: }
1076: if (read_ssl)
1077: FD_SET(SSL_get_fd(con), &readfds);
1078: if (write_ssl)
1079: FD_SET(SSL_get_fd(con), &writefds);
1080: /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
1081: tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1082:
1083: i = select(width, &readfds, &writefds,
1084: NULL, timeoutp);
1085: if (i < 0) {
1086: BIO_printf(bio_err, "bad select %d\n",
1087: errno);
1088: goto shut;
1089: /* goto end; */
1090: }
1091: }
1092: if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1093: BIO_printf(bio_err, "TIMEOUT occured\n");
1094: }
1095: if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
1096: k = SSL_write(con, &(cbuf[cbuf_off]),
1097: (unsigned int) cbuf_len);
1098: switch (SSL_get_error(con, k)) {
1099: case SSL_ERROR_NONE:
1100: cbuf_off += k;
1101: cbuf_len -= k;
1102: if (k <= 0)
1103: goto end;
1104: /* we have done a write(con,NULL,0); */
1105: if (cbuf_len <= 0) {
1106: read_tty = 1;
1107: write_ssl = 0;
1108: } else { /* if (cbuf_len > 0) */
1109: read_tty = 0;
1110: write_ssl = 1;
1111: }
1112: break;
1113: case SSL_ERROR_WANT_WRITE:
1114: BIO_printf(bio_c_out, "write W BLOCK\n");
1115: write_ssl = 1;
1116: read_tty = 0;
1117: break;
1118: case SSL_ERROR_WANT_READ:
1119: BIO_printf(bio_c_out, "write R BLOCK\n");
1120: write_tty = 0;
1121: read_ssl = 1;
1122: write_ssl = 0;
1123: break;
1124: case SSL_ERROR_WANT_X509_LOOKUP:
1125: BIO_printf(bio_c_out, "write X BLOCK\n");
1126: break;
1127: case SSL_ERROR_ZERO_RETURN:
1128: if (cbuf_len != 0) {
1129: BIO_printf(bio_c_out, "shutdown\n");
1130: ret = 0;
1131: goto shut;
1132: } else {
1133: read_tty = 1;
1134: write_ssl = 0;
1135: break;
1136: }
1137:
1138: case SSL_ERROR_SYSCALL:
1139: if ((k != 0) || (cbuf_len != 0)) {
1140: BIO_printf(bio_err, "write:errno=%d\n",
1141: errno);
1142: goto shut;
1143: } else {
1144: read_tty = 1;
1145: write_ssl = 0;
1146: }
1147: break;
1148: case SSL_ERROR_SSL:
1149: ERR_print_errors(bio_err);
1150: goto shut;
1151: }
1152: } else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds)) {
1153: i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
1154:
1155: if (i <= 0) {
1156: BIO_printf(bio_c_out, "DONE\n");
1157: ret = 0;
1158: goto shut;
1159: /* goto end; */
1160: }
1161: sbuf_len -= i;
1162: sbuf_off += i;
1163: if (sbuf_len <= 0) {
1164: read_ssl = 1;
1165: write_tty = 0;
1166: }
1167: } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
1168: #ifdef RENEG
1169: {
1170: static int iiii;
1171: if (++iiii == 52) {
1172: SSL_renegotiate(con);
1173: iiii = 0;
1174: }
1175: }
1176: #endif
1177: k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1178:
1179: switch (SSL_get_error(con, k)) {
1180: case SSL_ERROR_NONE:
1181: if (k <= 0)
1182: goto end;
1183: sbuf_off = 0;
1184: sbuf_len = k;
1185:
1186: read_ssl = 0;
1187: write_tty = 1;
1188: break;
1189: case SSL_ERROR_WANT_WRITE:
1190: BIO_printf(bio_c_out, "read W BLOCK\n");
1191: write_ssl = 1;
1192: read_tty = 0;
1193: break;
1194: case SSL_ERROR_WANT_READ:
1195: BIO_printf(bio_c_out, "read R BLOCK\n");
1196: write_tty = 0;
1197: read_ssl = 1;
1198: if ((read_tty == 0) && (write_ssl == 0))
1199: write_ssl = 1;
1200: break;
1201: case SSL_ERROR_WANT_X509_LOOKUP:
1202: BIO_printf(bio_c_out, "read X BLOCK\n");
1203: break;
1204: case SSL_ERROR_SYSCALL:
1205: ret = errno;
1206: BIO_printf(bio_err, "read:errno=%d\n", ret);
1207: goto shut;
1208: case SSL_ERROR_ZERO_RETURN:
1209: BIO_printf(bio_c_out, "closed\n");
1210: ret = 0;
1211: goto shut;
1212: case SSL_ERROR_SSL:
1213: ERR_print_errors(bio_err);
1214: goto shut;
1215: /* break; */
1216: }
1217: } else if (FD_ISSET(fileno(stdin), &readfds)) {
1218: if (crlf) {
1219: int j, lf_num;
1220:
1221: i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
1222: lf_num = 0;
1223: /* both loops are skipped when i <= 0 */
1224: for (j = 0; j < i; j++)
1225: if (cbuf[j] == '\n')
1226: lf_num++;
1227: for (j = i - 1; j >= 0; j--) {
1228: cbuf[j + lf_num] = cbuf[j];
1229: if (cbuf[j] == '\n') {
1230: lf_num--;
1231: i++;
1232: cbuf[j + lf_num] = '\r';
1233: }
1234: }
1235: assert(lf_num == 0);
1236: } else
1237: i = read(fileno(stdin), cbuf, BUFSIZZ);
1238:
1239: if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
1240: BIO_printf(bio_err, "DONE\n");
1241: ret = 0;
1242: goto shut;
1243: }
1244: if ((!c_ign_eof) && (cbuf[0] == 'R')) {
1245: BIO_printf(bio_err, "RENEGOTIATING\n");
1246: SSL_renegotiate(con);
1247: cbuf_len = 0;
1248: } else {
1249: cbuf_len = i;
1250: cbuf_off = 0;
1251: }
1252:
1253: write_ssl = 1;
1254: read_tty = 0;
1255: }
1256: }
1257:
1258: ret = 0;
1259: shut:
1260: if (in_init)
1261: print_stuff(bio_c_out, con, full_log);
1262: SSL_shutdown(con);
1263: shutdown(SSL_get_fd(con), SHUT_RD);
1264: close(SSL_get_fd(con));
1265: end:
1266: if (con != NULL) {
1267: if (prexit != 0)
1268: print_stuff(bio_c_out, con, 1);
1269: SSL_free(con);
1270: }
1271: #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1272: free(next_proto.data);
1273: #endif
1274: if (ctx != NULL)
1275: SSL_CTX_free(ctx);
1276: if (cert)
1277: X509_free(cert);
1278: if (key)
1279: EVP_PKEY_free(key);
1280: free(pass);
1281: if (vpm)
1282: X509_VERIFY_PARAM_free(vpm);
1283: if (cbuf != NULL) {
1284: OPENSSL_cleanse(cbuf, BUFSIZZ);
1285: free(cbuf);
1286: }
1287: if (sbuf != NULL) {
1288: OPENSSL_cleanse(sbuf, BUFSIZZ);
1289: free(sbuf);
1290: }
1291: if (mbuf != NULL) {
1292: OPENSSL_cleanse(mbuf, BUFSIZZ);
1293: free(mbuf);
1294: }
1295: if (bio_c_out != NULL) {
1296: BIO_free(bio_c_out);
1297: bio_c_out = NULL;
1298: }
1299:
1300: return (ret);
1301: }
1302:
1303:
1304: static void
1305: print_stuff(BIO * bio, SSL * s, int full)
1306: {
1307: X509 *peer = NULL;
1308: char *p;
1309: static const char *space = " ";
1310: char buf[BUFSIZ];
1311: STACK_OF(X509) * sk;
1312: STACK_OF(X509_NAME) * sk2;
1313: const SSL_CIPHER *c;
1314: X509_NAME *xn;
1315: int j, i;
1316: unsigned char *exportedkeymat;
1317:
1318: if (full) {
1319: int got_a_chain = 0;
1320:
1321: sk = SSL_get_peer_cert_chain(s);
1322: if (sk != NULL) {
1323: got_a_chain = 1; /* we don't have it for SSL2
1324: * (yet) */
1325:
1326: BIO_printf(bio, "---\nCertificate chain\n");
1327: for (i = 0; i < sk_X509_num(sk); i++) {
1328: X509_NAME_oneline(X509_get_subject_name(
1329: sk_X509_value(sk, i)), buf, sizeof buf);
1330: BIO_printf(bio, "%2d s:%s\n", i, buf);
1331: X509_NAME_oneline(X509_get_issuer_name(
1332: sk_X509_value(sk, i)), buf, sizeof buf);
1333: BIO_printf(bio, " i:%s\n", buf);
1334: if (c_showcerts)
1335: PEM_write_bio_X509(bio, sk_X509_value(sk, i));
1336: }
1337: }
1338: BIO_printf(bio, "---\n");
1339: peer = SSL_get_peer_certificate(s);
1340: if (peer != NULL) {
1341: BIO_printf(bio, "Server certificate\n");
1342: if (!(c_showcerts && got_a_chain)) /* Redundant if we
1343: * showed the whole
1344: * chain */
1345: PEM_write_bio_X509(bio, peer);
1346: X509_NAME_oneline(X509_get_subject_name(peer),
1347: buf, sizeof buf);
1348: BIO_printf(bio, "subject=%s\n", buf);
1349: X509_NAME_oneline(X509_get_issuer_name(peer),
1350: buf, sizeof buf);
1351: BIO_printf(bio, "issuer=%s\n", buf);
1352: } else
1353: BIO_printf(bio, "no peer certificate available\n");
1354:
1355: sk2 = SSL_get_client_CA_list(s);
1356: if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
1357: BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
1358: for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
1359: xn = sk_X509_NAME_value(sk2, i);
1360: X509_NAME_oneline(xn, buf, sizeof(buf));
1361: BIO_write(bio, buf, strlen(buf));
1362: BIO_write(bio, "\n", 1);
1363: }
1364: } else {
1365: BIO_printf(bio, "---\nNo client certificate CA names sent\n");
1366: }
1367: p = SSL_get_shared_ciphers(s, buf, sizeof buf);
1368: if (p != NULL) {
1369: /*
1370: * This works only for SSL 2. In later protocol
1371: * versions, the client does not know what other
1372: * ciphers (in addition to the one to be used in the
1373: * current connection) the server supports.
1374: */
1375:
1376: BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n");
1377: j = i = 0;
1378: while (*p) {
1379: if (*p == ':') {
1380: BIO_write(bio, space, 15 - j % 25);
1381: i++;
1382: j = 0;
1383: BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
1384: } else {
1385: BIO_write(bio, p, 1);
1386: j++;
1387: }
1388: p++;
1389: }
1390: BIO_write(bio, "\n", 1);
1391: }
1392: BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1393: BIO_number_read(SSL_get_rbio(s)),
1394: BIO_number_written(SSL_get_wbio(s)));
1395: }
1396: BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
1397: c = SSL_get_current_cipher(s);
1398: BIO_printf(bio, "%s, Cipher is %s\n",
1399: SSL_CIPHER_get_version(c),
1400: SSL_CIPHER_get_name(c));
1401: if (peer != NULL) {
1402: EVP_PKEY *pktmp;
1403: pktmp = X509_get_pubkey(peer);
1404: BIO_printf(bio, "Server public key is %d bit\n",
1405: EVP_PKEY_bits(pktmp));
1406: EVP_PKEY_free(pktmp);
1407: }
1408: BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1409: SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1410:
1411: /* Compression is not supported and will always be none. */
1412: BIO_printf(bio, "Compression: NONE\n");
1413: BIO_printf(bio, "Expansion: NONE\n");
1414:
1415: #ifdef SSL_DEBUG
1416: {
1417: /* Print out local port of connection: useful for debugging */
1418: int sock;
1419: struct sockaddr_in ladd;
1420: socklen_t ladd_size = sizeof(ladd);
1421: sock = SSL_get_fd(s);
1422: getsockname(sock, (struct sockaddr *) & ladd, &ladd_size);
1423: BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1424: }
1425: #endif
1426:
1427: #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1428: if (next_proto.status != -1) {
1429: const unsigned char *proto;
1430: unsigned int proto_len;
1431: SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
1432: BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
1433: BIO_write(bio, proto, proto_len);
1434: BIO_write(bio, "\n", 1);
1435: }
1436: #endif
1437:
1438: #ifndef OPENSSL_NO_SRTP
1439: {
1440: SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
1441:
1442: if (srtp_profile)
1443: BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
1444: srtp_profile->name);
1445: }
1446: #endif
1447:
1448: SSL_SESSION_print(bio, SSL_get_session(s));
1449: if (keymatexportlabel != NULL) {
1450: BIO_printf(bio, "Keying material exporter:\n");
1451: BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
1452: BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
1453: exportedkeymat = malloc(keymatexportlen);
1454: if (exportedkeymat != NULL) {
1455: if (!SSL_export_keying_material(s, exportedkeymat,
1456: keymatexportlen,
1457: keymatexportlabel,
1458: strlen(keymatexportlabel),
1459: NULL, 0, 0)) {
1460: BIO_printf(bio, " Error\n");
1461: } else {
1462: BIO_printf(bio, " Keying material: ");
1463: for (i = 0; i < keymatexportlen; i++)
1464: BIO_printf(bio, "%02X",
1465: exportedkeymat[i]);
1466: BIO_printf(bio, "\n");
1467: }
1468: free(exportedkeymat);
1469: }
1470: }
1471: BIO_printf(bio, "---\n");
1472: if (peer != NULL)
1473: X509_free(peer);
1474: /* flush, or debugging output gets mixed with http response */
1475: (void) BIO_flush(bio);
1476: }
1477:
1478: #ifndef OPENSSL_NO_TLSEXT
1479:
1480: static int
1481: ocsp_resp_cb(SSL * s, void *arg)
1482: {
1483: const unsigned char *p;
1484: int len;
1485: OCSP_RESPONSE *rsp;
1486: len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1487: BIO_puts(arg, "OCSP response: ");
1488: if (!p) {
1489: BIO_puts(arg, "no response sent\n");
1490: return 1;
1491: }
1492: rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1493: if (!rsp) {
1494: BIO_puts(arg, "response parse error\n");
1495: BIO_dump_indent(arg, (char *) p, len, 4);
1496: return 0;
1497: }
1498: BIO_puts(arg, "\n======================================\n");
1499: OCSP_RESPONSE_print(arg, rsp, 0);
1500: BIO_puts(arg, "======================================\n");
1501: OCSP_RESPONSE_free(rsp);
1502: return 1;
1503: }
1504:
1505: #endif