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1.24 ! jca 1: /* $OpenBSD: s_client.c,v 1.23 2015/10/17 15:00:11 doug 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/socket.h>
140:
141: #include <netinet/in.h>
142:
143: #include <assert.h>
144: #include <ctype.h>
145: #include <limits.h>
146: #include <netdb.h>
147: #include <stdio.h>
148: #include <stdlib.h>
149: #include <string.h>
150: #include <unistd.h>
1.9 deraadt 151: #include <poll.h>
1.1 jsing 152:
153: #include "apps.h"
154:
155: #include <openssl/bn.h>
156: #include <openssl/err.h>
157: #include <openssl/ocsp.h>
158: #include <openssl/pem.h>
159: #include <openssl/ssl.h>
160: #include <openssl/x509.h>
161:
162: #include "s_apps.h"
163: #include "timeouts.h"
164:
165: /*#define SSL_HOST_NAME "www.netscape.com" */
166: /*#define SSL_HOST_NAME "193.118.187.102" */
167: #define SSL_HOST_NAME "localhost"
168:
169: /*#define TEST_CERT "client.pem" *//* no default cert. */
170:
171: #define BUFSIZZ 1024*8
172:
173: static int c_nbio = 0;
174: static int c_Pause = 0;
175: static int c_debug = 0;
176: static int c_tlsextdebug = 0;
177: static int c_status_req = 0;
178: static int c_msg = 0;
179: static int c_showcerts = 0;
180:
181: static char *keymatexportlabel = NULL;
182: static int keymatexportlen = 20;
183:
184: static void sc_usage(void);
185: static void print_stuff(BIO * berr, SSL * con, int full);
186: static int ocsp_resp_cb(SSL * s, void *arg);
187: static BIO *bio_c_out = NULL;
188: static int c_quiet = 0;
189: static int c_ign_eof = 0;
190:
191:
192: static void
193: sc_usage(void)
194: {
195: BIO_printf(bio_err, "usage: s_client args\n");
196: BIO_printf(bio_err, "\n");
197: BIO_printf(bio_err, " -4 - Force IPv4\n");
198: BIO_printf(bio_err, " -6 - Force IPv6\n");
199: BIO_printf(bio_err, " -host host - use -connect instead\n");
200: BIO_printf(bio_err, " -port port - use -connect instead\n");
201: BIO_printf(bio_err, " -connect host:port - who to connect to (default is %s:%s)\n", SSL_HOST_NAME, PORT_STR);
1.12 bluhm 202: BIO_printf(bio_err, " -proxy host:port - connect to http proxy\n");
1.1 jsing 203:
204: BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n");
205: BIO_printf(bio_err, " -cert arg - certificate file to use, PEM format assumed\n");
206: BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n");
207: BIO_printf(bio_err, " -key arg - Private key file to use, in cert file if\n");
208: BIO_printf(bio_err, " not specified but cert file is.\n");
209: BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n");
210: BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n");
211: BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
212: BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
213: BIO_printf(bio_err, " -reconnect - Drop and re-make the connection with the same Session-ID\n");
214: BIO_printf(bio_err, " -pause - sleep(1) after each read(2) and write(2) system call\n");
215: BIO_printf(bio_err, " -showcerts - show all certificates in the chain\n");
216: BIO_printf(bio_err, " -debug - extra output\n");
217: BIO_printf(bio_err, " -msg - Show protocol messages\n");
218: BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n");
219: BIO_printf(bio_err, " -state - print the 'ssl' states\n");
220: BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
221: BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n");
222: BIO_printf(bio_err, " -quiet - no s_client output\n");
223: BIO_printf(bio_err, " -ign_eof - ignore input eof (default when -quiet)\n");
224: BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n");
225: BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n");
226: BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n");
227: BIO_printf(bio_err, " -tls1 - just use TLSv1\n");
228: BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n");
229: BIO_printf(bio_err, " -mtu - set the link layer MTU\n");
230: BIO_printf(bio_err, " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
231: BIO_printf(bio_err, " -bugs - Switch on all SSL implementation bug workarounds\n");
232: BIO_printf(bio_err, " -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
233: BIO_printf(bio_err, " command to see what is available\n");
234: BIO_printf(bio_err, " -starttls prot - use the STARTTLS command before starting TLS\n");
235: BIO_printf(bio_err, " for those protocols that support it, where\n");
236: BIO_printf(bio_err, " 'prot' defines which one to assume. Currently,\n");
237: BIO_printf(bio_err, " only \"smtp\", \"lmtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
238: BIO_printf(bio_err, " are supported.\n");
1.15 landry 239: BIO_printf(bio_err, " -xmpphost host - connect to this virtual host on the xmpp server\n");
1.1 jsing 240: BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
241: BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n");
242: BIO_printf(bio_err, " -servername host - Set TLS extension servername in ClientHello\n");
243: BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n");
244: BIO_printf(bio_err, " -status - request certificate status from server\n");
245: BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n");
246: BIO_printf(bio_err, " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
1.10 jsing 247: BIO_printf(bio_err, " -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
1.1 jsing 248: #ifndef OPENSSL_NO_SRTP
249: BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
250: #endif
251: BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n");
252: BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
253: }
254:
255:
256: /* This is a context that we pass to callbacks */
257: typedef struct tlsextctx_st {
258: BIO *biodebug;
259: int ack;
260: } tlsextctx;
261:
262:
263: static int
264: ssl_servername_cb(SSL * s, int *ad, void *arg)
265: {
266: tlsextctx *p = (tlsextctx *) arg;
267: const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
268: if (SSL_get_servername_type(s) != -1)
269: p->ack = !SSL_session_reused(s) && hn != NULL;
270: else
271: BIO_printf(bio_err, "Can't use SSL_get_servername\n");
272:
273: return SSL_TLSEXT_ERR_OK;
274: }
275:
276: #ifndef OPENSSL_NO_SRTP
277: char *srtp_profiles = NULL;
278: #endif
279:
280: /* This the context that we pass to next_proto_cb */
281: typedef struct tlsextnextprotoctx_st {
282: unsigned char *data;
283: unsigned short len;
284: int status;
285: } tlsextnextprotoctx;
286:
287: static tlsextnextprotoctx next_proto;
288:
289: static int
290: next_proto_cb(SSL * s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
291: {
292: tlsextnextprotoctx *ctx = arg;
293:
294: if (!c_quiet) {
295: /* We can assume that |in| is syntactically valid. */
296: unsigned i;
297: BIO_printf(bio_c_out, "Protocols advertised by server: ");
298: for (i = 0; i < inlen;) {
299: if (i)
300: BIO_write(bio_c_out, ", ", 2);
301: BIO_write(bio_c_out, &in[i + 1], in[i]);
302: i += in[i] + 1;
303: }
304: BIO_write(bio_c_out, "\n", 1);
305: }
306: ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
307: return SSL_TLSEXT_ERR_OK;
308: }
309:
310: enum {
311: PROTO_OFF = 0,
312: PROTO_SMTP,
313: PROTO_LMTP,
314: PROTO_POP3,
315: PROTO_IMAP,
316: PROTO_FTP,
317: PROTO_XMPP
318: };
319:
320: int
321: s_client_main(int argc, char **argv)
322: {
323: unsigned int off = 0, clr = 0;
324: SSL *con = NULL;
1.9 deraadt 325: int s, k, state = 0, af = AF_UNSPEC;
1.1 jsing 326: char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
327: int cbuf_len, cbuf_off;
328: int sbuf_len, sbuf_off;
329: char *port = PORT_STR;
330: int full_log = 1;
331: char *host = SSL_HOST_NAME;
1.15 landry 332: char *xmpphost = NULL;
1.12 bluhm 333: char *proxy = NULL, *connect = NULL;
1.1 jsing 334: char *cert_file = NULL, *key_file = NULL;
335: int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
336: char *passarg = NULL, *pass = NULL;
337: X509 *cert = NULL;
338: EVP_PKEY *key = NULL;
339: char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
340: int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
341: int crlf = 0;
342: int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
343: SSL_CTX *ctx = NULL;
344: int ret = 1, in_init = 1, i, nbio_test = 0;
345: int starttls_proto = PROTO_OFF;
346: int prexit = 0;
347: X509_VERIFY_PARAM *vpm = NULL;
348: int badarg = 0;
349: const SSL_METHOD *meth = NULL;
350: int socket_type = SOCK_STREAM;
351: BIO *sbio;
352: int mbuf_len = 0;
1.9 deraadt 353: struct timeval timeout;
1.1 jsing 354: const char *errstr = NULL;
355: char *servername = NULL;
356: tlsextctx tlsextcbp =
357: {NULL, 0};
358: const char *next_proto_neg_in = NULL;
1.10 jsing 359: const char *alpn_in = NULL;
1.1 jsing 360: char *sess_in = NULL;
361: char *sess_out = NULL;
362: struct sockaddr peer;
363: int peerlen = sizeof(peer);
364: int enable_timeouts = 0;
365: long socket_mtu = 0;
1.21 doug 366:
367: if (single_execution) {
1.24 ! jca 368: if (pledge("stdio inet rpath wpath cpath tty dns", NULL) == -1) {
1.21 doug 369: perror("pledge");
1.23 doug 370: exit(1);
371: }
1.21 doug 372: }
1.1 jsing 373:
374: meth = SSLv23_client_method();
375:
376: c_Pause = 0;
377: c_quiet = 0;
378: c_ign_eof = 0;
379: c_debug = 0;
380: c_msg = 0;
381: c_showcerts = 0;
382:
383: if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
384: ((sbuf = malloc(BUFSIZZ)) == NULL) ||
385: ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
386: BIO_printf(bio_err, "out of memory\n");
387: goto end;
388: }
389: verify_depth = 0;
390: c_nbio = 0;
391:
392: argc--;
393: argv++;
394: while (argc >= 1) {
395: if (strcmp(*argv, "-host") == 0) {
396: if (--argc < 1)
397: goto bad;
398: host = *(++argv);
399: } else if (strcmp(*argv, "-port") == 0) {
400: if (--argc < 1)
401: goto bad;
402: port = *(++argv);
403: if (port == NULL || *port == '\0')
404: goto bad;
405: } else if (strcmp(*argv, "-connect") == 0) {
406: if (--argc < 1)
407: goto bad;
1.12 bluhm 408: connect = *(++argv);
409: } else if (strcmp(*argv, "-proxy") == 0) {
410: if (--argc < 1)
1.1 jsing 411: goto bad;
1.12 bluhm 412: proxy = *(++argv);
1.15 landry 413: } else if (strcmp(*argv,"-xmpphost") == 0) {
414: if (--argc < 1)
415: goto bad;
416: xmpphost= *(++argv);
1.1 jsing 417: } else if (strcmp(*argv, "-verify") == 0) {
418: verify = SSL_VERIFY_PEER;
419: if (--argc < 1)
420: goto bad;
421: verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
422: if (errstr)
423: goto bad;
424: BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
425: } else if (strcmp(*argv, "-cert") == 0) {
426: if (--argc < 1)
427: goto bad;
428: cert_file = *(++argv);
429: } else if (strcmp(*argv, "-sess_out") == 0) {
430: if (--argc < 1)
431: goto bad;
432: sess_out = *(++argv);
433: } else if (strcmp(*argv, "-sess_in") == 0) {
434: if (--argc < 1)
435: goto bad;
436: sess_in = *(++argv);
437: } else if (strcmp(*argv, "-certform") == 0) {
438: if (--argc < 1)
439: goto bad;
440: cert_format = str2fmt(*(++argv));
441: } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
442: if (badarg)
443: goto bad;
444: continue;
445: } else if (strcmp(*argv, "-verify_return_error") == 0)
446: verify_return_error = 1;
447: else if (strcmp(*argv, "-prexit") == 0)
448: prexit = 1;
449: else if (strcmp(*argv, "-crlf") == 0)
450: crlf = 1;
451: else if (strcmp(*argv, "-quiet") == 0) {
452: c_quiet = 1;
453: c_ign_eof = 1;
454: } else if (strcmp(*argv, "-ign_eof") == 0)
455: c_ign_eof = 1;
456: else if (strcmp(*argv, "-no_ign_eof") == 0)
457: c_ign_eof = 0;
458: else if (strcmp(*argv, "-pause") == 0)
459: c_Pause = 1;
460: else if (strcmp(*argv, "-debug") == 0)
461: c_debug = 1;
462: else if (strcmp(*argv, "-tlsextdebug") == 0)
463: c_tlsextdebug = 1;
464: else if (strcmp(*argv, "-status") == 0)
465: c_status_req = 1;
466: else if (strcmp(*argv, "-msg") == 0)
467: c_msg = 1;
468: else if (strcmp(*argv, "-showcerts") == 0)
469: c_showcerts = 1;
470: else if (strcmp(*argv, "-nbio_test") == 0)
471: nbio_test = 1;
472: else if (strcmp(*argv, "-state") == 0)
473: state = 1;
474: else if (strcmp(*argv, "-tls1_2") == 0)
475: meth = TLSv1_2_client_method();
476: else if (strcmp(*argv, "-tls1_1") == 0)
477: meth = TLSv1_1_client_method();
478: else if (strcmp(*argv, "-tls1") == 0)
479: meth = TLSv1_client_method();
480: #ifndef OPENSSL_NO_DTLS1
481: else if (strcmp(*argv, "-dtls1") == 0) {
482: meth = DTLSv1_client_method();
483: socket_type = SOCK_DGRAM;
484: } else if (strcmp(*argv, "-timeout") == 0)
485: enable_timeouts = 1;
486: else if (strcmp(*argv, "-mtu") == 0) {
487: if (--argc < 1)
488: goto bad;
489: socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
490: if (errstr)
491: goto bad;
492: }
493: #endif
494: else if (strcmp(*argv, "-bugs") == 0)
495: bugs = 1;
496: else if (strcmp(*argv, "-keyform") == 0) {
497: if (--argc < 1)
498: goto bad;
499: key_format = str2fmt(*(++argv));
500: } else if (strcmp(*argv, "-pass") == 0) {
501: if (--argc < 1)
502: goto bad;
503: passarg = *(++argv);
504: } else if (strcmp(*argv, "-key") == 0) {
505: if (--argc < 1)
506: goto bad;
507: key_file = *(++argv);
508: } else if (strcmp(*argv, "-reconnect") == 0) {
509: reconnect = 5;
510: } else if (strcmp(*argv, "-CApath") == 0) {
511: if (--argc < 1)
512: goto bad;
513: CApath = *(++argv);
514: } else if (strcmp(*argv, "-CAfile") == 0) {
515: if (--argc < 1)
516: goto bad;
517: CAfile = *(++argv);
518: } else if (strcmp(*argv, "-no_tls1_2") == 0)
519: off |= SSL_OP_NO_TLSv1_2;
520: else if (strcmp(*argv, "-no_tls1_1") == 0)
521: off |= SSL_OP_NO_TLSv1_1;
522: else if (strcmp(*argv, "-no_tls1") == 0)
523: off |= SSL_OP_NO_TLSv1;
524: else if (strcmp(*argv, "-no_ssl3") == 0)
525: off |= SSL_OP_NO_SSLv3;
526: else if (strcmp(*argv, "-no_ssl2") == 0)
527: off |= SSL_OP_NO_SSLv2;
528: else if (strcmp(*argv, "-no_comp") == 0) {
529: off |= SSL_OP_NO_COMPRESSION;
530: }
531: else if (strcmp(*argv, "-no_ticket") == 0) {
532: off |= SSL_OP_NO_TICKET;
533: }
534: else if (strcmp(*argv, "-nextprotoneg") == 0) {
535: if (--argc < 1)
536: goto bad;
537: next_proto_neg_in = *(++argv);
538: }
1.10 jsing 539: else if (strcmp(*argv, "-alpn") == 0) {
540: if (--argc < 1)
541: goto bad;
542: alpn_in = *(++argv);
543: } else if (strcmp(*argv, "-serverpref") == 0)
1.1 jsing 544: off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
545: else if (strcmp(*argv, "-legacy_renegotiation") == 0)
546: ; /* no-op */
547: else if (strcmp(*argv, "-legacy_server_connect") == 0) {
548: off |= SSL_OP_LEGACY_SERVER_CONNECT;
549: } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
550: clr |= SSL_OP_LEGACY_SERVER_CONNECT;
551: } else if (strcmp(*argv, "-cipher") == 0) {
552: if (--argc < 1)
553: goto bad;
554: cipher = *(++argv);
555: }
556: else if (strcmp(*argv, "-nbio") == 0) {
557: c_nbio = 1;
558: }
559: else if (strcmp(*argv, "-starttls") == 0) {
560: if (--argc < 1)
561: goto bad;
562: ++argv;
563: if (strcmp(*argv, "smtp") == 0)
564: starttls_proto = PROTO_SMTP;
565: else if (strcmp(*argv, "lmtp") == 0)
566: starttls_proto = PROTO_LMTP;
567: else if (strcmp(*argv, "pop3") == 0)
568: starttls_proto = PROTO_POP3;
569: else if (strcmp(*argv, "imap") == 0)
570: starttls_proto = PROTO_IMAP;
571: else if (strcmp(*argv, "ftp") == 0)
572: starttls_proto = PROTO_FTP;
573: else if (strcmp(*argv, "xmpp") == 0)
574: starttls_proto = PROTO_XMPP;
575: else
576: goto bad;
577: }
578: else if (strcmp(*argv, "-4") == 0) {
579: af = AF_INET;
580: } else if (strcmp(*argv, "-6") == 0) {
581: af = AF_INET6;
582: }
583: else if (strcmp(*argv, "-servername") == 0) {
584: if (--argc < 1)
585: goto bad;
586: servername = *(++argv);
587: /* meth=TLSv1_client_method(); */
588: }
589: #ifndef OPENSSL_NO_SRTP
590: else if (strcmp(*argv, "-use_srtp") == 0) {
591: if (--argc < 1)
592: goto bad;
593: srtp_profiles = *(++argv);
594: }
595: #endif
596: else if (strcmp(*argv, "-keymatexport") == 0) {
597: if (--argc < 1)
598: goto bad;
599: keymatexportlabel = *(++argv);
600: } else if (strcmp(*argv, "-keymatexportlen") == 0) {
601: if (--argc < 1)
602: goto bad;
603: keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
604: if (errstr)
605: goto bad;
606: } else {
607: BIO_printf(bio_err, "unknown option %s\n", *argv);
608: badop = 1;
609: break;
610: }
611: argc--;
612: argv++;
613: }
1.12 bluhm 614: if (proxy != NULL) {
615: if (!extract_host_port(proxy, &host, NULL, &port))
616: goto bad;
617: if (connect == NULL)
618: connect = SSL_HOST_NAME;
619: } else if (connect != NULL) {
620: if (!extract_host_port(connect, &host, NULL, &port))
621: goto bad;
622: }
1.1 jsing 623: if (badop) {
624: bad:
625: if (errstr)
626: BIO_printf(bio_err, "invalid argument %s: %s\n",
627: *argv, errstr);
628: else
629: sc_usage();
630: goto end;
631: }
632:
633: next_proto.status = -1;
634: if (next_proto_neg_in) {
635: next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
636: if (next_proto.data == NULL) {
637: BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
638: goto end;
639: }
640: } else
641: next_proto.data = NULL;
642:
643: if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
644: BIO_printf(bio_err, "Error getting password\n");
645: goto end;
646: }
647: if (key_file == NULL)
648: key_file = cert_file;
649:
650:
651: if (key_file) {
652:
1.19 bcook 653: key = load_key(bio_err, key_file, key_format, 0, pass,
1.1 jsing 654: "client certificate private key file");
655: if (!key) {
656: ERR_print_errors(bio_err);
657: goto end;
658: }
659: }
660: if (cert_file) {
661: cert = load_cert(bio_err, cert_file, cert_format,
1.19 bcook 662: NULL, "client certificate file");
1.1 jsing 663:
664: if (!cert) {
665: ERR_print_errors(bio_err);
666: goto end;
667: }
668: }
669: if (bio_c_out == NULL) {
670: if (c_quiet && !c_debug && !c_msg) {
671: bio_c_out = BIO_new(BIO_s_null());
672: } else {
673: if (bio_c_out == NULL)
674: bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
675: }
676: }
677:
678: ctx = SSL_CTX_new(meth);
679: if (ctx == NULL) {
680: ERR_print_errors(bio_err);
681: goto end;
682: }
683: if (vpm)
684: SSL_CTX_set1_param(ctx, vpm);
685:
686: #ifndef OPENSSL_NO_SRTP
687: if (srtp_profiles != NULL)
688: SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
689: #endif
690: if (bugs)
691: SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
692: else
693: SSL_CTX_set_options(ctx, off);
694:
695: if (clr)
696: SSL_CTX_clear_options(ctx, clr);
697: /*
698: * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
699: * read ahead solves this problem.
700: */
701: if (socket_type == SOCK_DGRAM)
702: SSL_CTX_set_read_ahead(ctx, 1);
703:
704: if (next_proto.data)
705: SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1.10 jsing 706: if (alpn_in) {
707: unsigned short alpn_len;
708: unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
709:
710: if (alpn == NULL) {
711: BIO_printf(bio_err, "Error parsing -alpn argument\n");
712: goto end;
713: }
714: SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
715: free(alpn);
716: }
1.1 jsing 717:
718: if (state)
719: SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
720: if (cipher != NULL)
721: if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
722: BIO_printf(bio_err, "error setting cipher list\n");
723: ERR_print_errors(bio_err);
724: goto end;
725: }
726:
727: SSL_CTX_set_verify(ctx, verify, verify_callback);
728: if (!set_cert_key_stuff(ctx, cert, key))
729: goto end;
730:
731: if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
732: (!SSL_CTX_set_default_verify_paths(ctx))) {
733: /*
734: * BIO_printf(bio_err,"error setting default verify
735: * locations\n");
736: */
737: ERR_print_errors(bio_err);
738: /* goto end; */
739: }
740: if (servername != NULL) {
741: tlsextcbp.biodebug = bio_err;
742: SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
743: SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
744: }
745:
746: con = SSL_new(ctx);
747: if (sess_in) {
748: SSL_SESSION *sess;
749: BIO *stmp = BIO_new_file(sess_in, "r");
750: if (!stmp) {
751: BIO_printf(bio_err, "Can't open session file %s\n",
752: sess_in);
753: ERR_print_errors(bio_err);
754: goto end;
755: }
756: sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
757: BIO_free(stmp);
758: if (!sess) {
759: BIO_printf(bio_err, "Can't open session file %s\n",
760: sess_in);
761: ERR_print_errors(bio_err);
762: goto end;
763: }
764: SSL_set_session(con, sess);
765: SSL_SESSION_free(sess);
766: }
767: if (servername != NULL) {
768: if (!SSL_set_tlsext_host_name(con, servername)) {
769: BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
770: ERR_print_errors(bio_err);
771: goto end;
772: }
773: }
774: /* SSL_set_cipher_list(con,"RC4-MD5"); */
775:
776: re_start:
777:
778: if (init_client(&s, host, port, socket_type, af) == 0) {
779: BIO_printf(bio_err, "connect:errno=%d\n", errno);
780: goto end;
781: }
782: BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
783:
784: if (c_nbio) {
1.3 bcook 785: if (!c_quiet)
786: BIO_printf(bio_c_out, "turning on non blocking io\n");
787: if (!BIO_socket_nbio(s, 1)) {
1.1 jsing 788: ERR_print_errors(bio_err);
789: goto end;
790: }
791: }
792: if (c_Pause & 0x01)
793: SSL_set_debug(con, 1);
794:
795: if (SSL_version(con) == DTLS1_VERSION) {
796:
797: sbio = BIO_new_dgram(s, BIO_NOCLOSE);
798: if (getsockname(s, &peer, (void *) &peerlen) < 0) {
799: BIO_printf(bio_err, "getsockname:errno=%d\n",
800: errno);
801: shutdown(s, SHUT_RD);
802: close(s);
803: goto end;
804: }
805: (void) BIO_ctrl_set_connected(sbio, 1, &peer);
806:
807: if (enable_timeouts) {
808: timeout.tv_sec = 0;
809: timeout.tv_usec = DGRAM_RCV_TIMEOUT;
810: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
811:
812: timeout.tv_sec = 0;
813: timeout.tv_usec = DGRAM_SND_TIMEOUT;
814: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
815: }
816: if (socket_mtu > 28) {
817: SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
818: SSL_set_mtu(con, socket_mtu - 28);
819: } else
820: /* want to do MTU discovery */
821: BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
822: } else
823: sbio = BIO_new_socket(s, BIO_NOCLOSE);
824:
825: if (nbio_test) {
826: BIO *test;
827:
828: test = BIO_new(BIO_f_nbio_test());
829: sbio = BIO_push(test, sbio);
830: }
831: if (c_debug) {
832: SSL_set_debug(con, 1);
833: BIO_set_callback(sbio, bio_dump_callback);
834: BIO_set_callback_arg(sbio, (char *) bio_c_out);
835: }
836: if (c_msg) {
837: SSL_set_msg_callback(con, msg_cb);
838: SSL_set_msg_callback_arg(con, bio_c_out);
839: }
840: if (c_tlsextdebug) {
841: SSL_set_tlsext_debug_callback(con, tlsext_cb);
842: SSL_set_tlsext_debug_arg(con, bio_c_out);
843: }
844: if (c_status_req) {
845: SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
846: SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
847: SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
848: }
849:
850: SSL_set_bio(con, sbio, sbio);
851: SSL_set_connect_state(con);
852:
853: /* ok, lets connect */
854: read_tty = 1;
855: write_tty = 0;
856: tty_on = 0;
857: read_ssl = 1;
858: write_ssl = 1;
859:
860: cbuf_len = 0;
861: cbuf_off = 0;
862: sbuf_len = 0;
863: sbuf_off = 0;
864:
865: /* This is an ugly hack that does a lot of assumptions */
866: /*
867: * We do have to handle multi-line responses which may come in a
868: * single packet or not. We therefore have to use BIO_gets() which
869: * does need a buffering BIO. So during the initial chitchat we do
870: * push a buffering BIO into the chain that is removed again later on
871: * to not disturb the rest of the s_client operation.
872: */
873: if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
874: int foundit = 0;
875: BIO *fbio = BIO_new(BIO_f_buffer());
876: BIO_push(fbio, sbio);
877: /* wait for multi-line response to end from SMTP */
878: do {
879: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
880: }
881: while (mbuf_len > 3 && mbuf[3] == '-');
882: /* STARTTLS command requires EHLO... */
883: BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
884: starttls_proto == PROTO_SMTP ? 'E' : 'L');
885: (void) BIO_flush(fbio);
886: /* wait for multi-line response to end EHLO SMTP response */
887: do {
888: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
889: if (strstr(mbuf, "STARTTLS"))
890: foundit = 1;
891: }
892: while (mbuf_len > 3 && mbuf[3] == '-');
893: (void) BIO_flush(fbio);
894: BIO_pop(fbio);
895: BIO_free(fbio);
896: if (!foundit)
897: BIO_printf(bio_err,
898: "didn't found starttls in server response,"
899: " try anyway...\n");
900: BIO_printf(sbio, "STARTTLS\r\n");
901: BIO_read(sbio, sbuf, BUFSIZZ);
902: } else if (starttls_proto == PROTO_POP3) {
903: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
904: if (mbuf_len == -1) {
905: BIO_printf(bio_err, "BIO_read failed\n");
906: goto end;
907: }
908: BIO_printf(sbio, "STLS\r\n");
909: BIO_read(sbio, sbuf, BUFSIZZ);
910: } else if (starttls_proto == PROTO_IMAP) {
911: int foundit = 0;
912: BIO *fbio = BIO_new(BIO_f_buffer());
913: BIO_push(fbio, sbio);
914: BIO_gets(fbio, mbuf, BUFSIZZ);
915: /* STARTTLS command requires CAPABILITY... */
916: BIO_printf(fbio, ". CAPABILITY\r\n");
917: (void) BIO_flush(fbio);
918: /* wait for multi-line CAPABILITY response */
919: do {
920: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
921: if (strstr(mbuf, "STARTTLS"))
922: foundit = 1;
923: }
924: while (mbuf_len > 3 && mbuf[0] != '.');
925: (void) BIO_flush(fbio);
926: BIO_pop(fbio);
927: BIO_free(fbio);
928: if (!foundit)
929: BIO_printf(bio_err,
930: "didn't found STARTTLS in server response,"
931: " try anyway...\n");
932: BIO_printf(sbio, ". STARTTLS\r\n");
933: BIO_read(sbio, sbuf, BUFSIZZ);
934: } else if (starttls_proto == PROTO_FTP) {
935: BIO *fbio = BIO_new(BIO_f_buffer());
936: BIO_push(fbio, sbio);
937: /* wait for multi-line response to end from FTP */
938: do {
939: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
940: }
941: while (mbuf_len > 3 && mbuf[3] == '-');
942: (void) BIO_flush(fbio);
943: BIO_pop(fbio);
944: BIO_free(fbio);
945: BIO_printf(sbio, "AUTH TLS\r\n");
946: BIO_read(sbio, sbuf, BUFSIZZ);
1.12 bluhm 947: } else if (starttls_proto == PROTO_XMPP) {
1.1 jsing 948: int seen = 0;
949: BIO_printf(sbio, "<stream:stream "
950: "xmlns:stream='http://etherx.jabber.org/streams' "
1.15 landry 951: "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host);
1.1 jsing 952: seen = BIO_read(sbio, mbuf, BUFSIZZ);
1.15 landry 953:
954: if (seen <= 0)
955: goto shut;
956:
1.1 jsing 957: mbuf[seen] = 0;
1.15 landry 958: while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") &&
959: !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) {
960: seen = BIO_read(sbio, mbuf, BUFSIZZ);
961:
962: if (seen <= 0)
1.1 jsing 963: goto shut;
1.15 landry 964:
1.1 jsing 965: mbuf[seen] = 0;
966: }
967: BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
968: seen = BIO_read(sbio, sbuf, BUFSIZZ);
969: sbuf[seen] = 0;
970: if (!strstr(sbuf, "<proceed"))
971: goto shut;
972: mbuf[0] = 0;
1.12 bluhm 973: } else if (proxy != NULL) {
974: BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect);
975: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
976: if (mbuf_len == -1) {
977: BIO_printf(bio_err, "BIO_read failed\n");
978: goto end;
979: }
1.1 jsing 980: }
981: for (;;) {
1.9 deraadt 982: struct pollfd pfd[3]; /* stdin, stdout, socket */
983: int ptimeout = -1;
1.1 jsing 984:
985: if ((SSL_version(con) == DTLS1_VERSION) &&
986: DTLSv1_get_timeout(con, &timeout))
1.9 deraadt 987: ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
1.1 jsing 988:
989: if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
990: in_init = 1;
991: tty_on = 0;
992: } else {
993: tty_on = 1;
994: if (in_init) {
995: in_init = 0;
996: if (sess_out) {
997: BIO *stmp = BIO_new_file(sess_out, "w");
998: if (stmp) {
999: PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1000: BIO_free(stmp);
1001: } else
1002: BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1003: }
1004: print_stuff(bio_c_out, con, full_log);
1005: if (full_log > 0)
1006: full_log--;
1007:
1008: if (starttls_proto) {
1009: BIO_write(bio_err, mbuf, mbuf_len);
1010: /* We don't need to know any more */
1011: starttls_proto = PROTO_OFF;
1012: }
1013: if (reconnect) {
1014: reconnect--;
1015: BIO_printf(bio_c_out, "drop connection and then reconnect\n");
1016: SSL_shutdown(con);
1017: SSL_set_connect_state(con);
1018: shutdown(SSL_get_fd(con), SHUT_RD);
1019: close(SSL_get_fd(con));
1020: goto re_start;
1021: }
1022: }
1023: }
1024:
1025: ssl_pending = read_ssl && SSL_pending(con);
1026:
1.9 deraadt 1027: pfd[0].fd = -1;
1028: pfd[1].fd = -1;
1.1 jsing 1029: if (!ssl_pending) {
1030: if (tty_on) {
1.9 deraadt 1031: if (read_tty) {
1032: pfd[0].fd = fileno(stdin);
1033: pfd[0].events = POLLIN;
1034: }
1035: if (write_tty) {
1036: pfd[1].fd = fileno(stdout);
1037: pfd[1].events = POLLOUT;
1038: }
1.1 jsing 1039: }
1.9 deraadt 1040:
1041: pfd[2].fd = SSL_get_fd(con);
1042: pfd[2].events = 0;
1.1 jsing 1043: if (read_ssl)
1.9 deraadt 1044: pfd[2].events |= POLLIN;
1.1 jsing 1045: if (write_ssl)
1.9 deraadt 1046: pfd[2].events |= POLLOUT;
1047:
1.1 jsing 1048: /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
1049: tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1050:
1.9 deraadt 1051: i = poll(pfd, 3, ptimeout);
1.1 jsing 1052: if (i < 0) {
1053: BIO_printf(bio_err, "bad select %d\n",
1054: errno);
1055: goto shut;
1056: /* goto end; */
1057: }
1058: }
1059: if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1060: BIO_printf(bio_err, "TIMEOUT occured\n");
1061: }
1.9 deraadt 1062: if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1063: if (pfd[2].revents & (POLLERR|POLLNVAL)) {
1064: BIO_printf(bio_err, "poll error");
1065: goto shut;
1066: }
1.1 jsing 1067: k = SSL_write(con, &(cbuf[cbuf_off]),
1068: (unsigned int) cbuf_len);
1069: switch (SSL_get_error(con, k)) {
1070: case SSL_ERROR_NONE:
1071: cbuf_off += k;
1072: cbuf_len -= k;
1073: if (k <= 0)
1074: goto end;
1075: /* we have done a write(con,NULL,0); */
1076: if (cbuf_len <= 0) {
1077: read_tty = 1;
1078: write_ssl = 0;
1079: } else { /* if (cbuf_len > 0) */
1080: read_tty = 0;
1081: write_ssl = 1;
1082: }
1083: break;
1084: case SSL_ERROR_WANT_WRITE:
1085: BIO_printf(bio_c_out, "write W BLOCK\n");
1086: write_ssl = 1;
1087: read_tty = 0;
1088: break;
1089: case SSL_ERROR_WANT_READ:
1090: BIO_printf(bio_c_out, "write R BLOCK\n");
1091: write_tty = 0;
1092: read_ssl = 1;
1093: write_ssl = 0;
1094: break;
1095: case SSL_ERROR_WANT_X509_LOOKUP:
1096: BIO_printf(bio_c_out, "write X BLOCK\n");
1097: break;
1098: case SSL_ERROR_ZERO_RETURN:
1099: if (cbuf_len != 0) {
1100: BIO_printf(bio_c_out, "shutdown\n");
1101: ret = 0;
1102: goto shut;
1103: } else {
1104: read_tty = 1;
1105: write_ssl = 0;
1106: break;
1107: }
1108:
1109: case SSL_ERROR_SYSCALL:
1110: if ((k != 0) || (cbuf_len != 0)) {
1111: BIO_printf(bio_err, "write:errno=%d\n",
1112: errno);
1113: goto shut;
1114: } else {
1115: read_tty = 1;
1116: write_ssl = 0;
1117: }
1118: break;
1119: case SSL_ERROR_SSL:
1120: ERR_print_errors(bio_err);
1121: goto shut;
1122: }
1.9 deraadt 1123: } else if (!ssl_pending &&
1124: (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1125: if (pfd[1].revents & (POLLERR|POLLNVAL)) {
1126: BIO_printf(bio_err, "poll error");
1127: goto shut;
1128: }
1.1 jsing 1129: i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
1130:
1131: if (i <= 0) {
1132: BIO_printf(bio_c_out, "DONE\n");
1133: ret = 0;
1134: goto shut;
1135: /* goto end; */
1136: }
1137: sbuf_len -= i;
1138: sbuf_off += i;
1139: if (sbuf_len <= 0) {
1140: read_ssl = 1;
1141: write_tty = 0;
1142: }
1.9 deraadt 1143: } else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) {
1.1 jsing 1144: #ifdef RENEG
1145: {
1146: static int iiii;
1147: if (++iiii == 52) {
1148: SSL_renegotiate(con);
1149: iiii = 0;
1150: }
1151: }
1152: #endif
1153: k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1154:
1155: switch (SSL_get_error(con, k)) {
1156: case SSL_ERROR_NONE:
1157: if (k <= 0)
1158: goto end;
1159: sbuf_off = 0;
1160: sbuf_len = k;
1161:
1162: read_ssl = 0;
1163: write_tty = 1;
1164: break;
1165: case SSL_ERROR_WANT_WRITE:
1166: BIO_printf(bio_c_out, "read W BLOCK\n");
1167: write_ssl = 1;
1168: read_tty = 0;
1169: break;
1170: case SSL_ERROR_WANT_READ:
1171: BIO_printf(bio_c_out, "read R BLOCK\n");
1172: write_tty = 0;
1173: read_ssl = 1;
1174: if ((read_tty == 0) && (write_ssl == 0))
1175: write_ssl = 1;
1176: break;
1177: case SSL_ERROR_WANT_X509_LOOKUP:
1178: BIO_printf(bio_c_out, "read X BLOCK\n");
1179: break;
1180: case SSL_ERROR_SYSCALL:
1181: ret = errno;
1182: BIO_printf(bio_err, "read:errno=%d\n", ret);
1183: goto shut;
1184: case SSL_ERROR_ZERO_RETURN:
1185: BIO_printf(bio_c_out, "closed\n");
1186: ret = 0;
1187: goto shut;
1188: case SSL_ERROR_SSL:
1189: ERR_print_errors(bio_err);
1190: goto shut;
1191: /* break; */
1192: }
1.9 deraadt 1193: } else if (pfd[0].revents) {
1194: if (pfd[0].revents & (POLLERR|POLLNVAL)) {
1195: BIO_printf(bio_err, "poll error");
1196: goto shut;
1197: }
1.1 jsing 1198: if (crlf) {
1199: int j, lf_num;
1200:
1201: i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
1202: lf_num = 0;
1203: /* both loops are skipped when i <= 0 */
1204: for (j = 0; j < i; j++)
1205: if (cbuf[j] == '\n')
1206: lf_num++;
1207: for (j = i - 1; j >= 0; j--) {
1208: cbuf[j + lf_num] = cbuf[j];
1209: if (cbuf[j] == '\n') {
1210: lf_num--;
1211: i++;
1212: cbuf[j + lf_num] = '\r';
1213: }
1214: }
1215: assert(lf_num == 0);
1216: } else
1217: i = read(fileno(stdin), cbuf, BUFSIZZ);
1218:
1219: if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
1220: BIO_printf(bio_err, "DONE\n");
1221: ret = 0;
1222: goto shut;
1223: }
1224: if ((!c_ign_eof) && (cbuf[0] == 'R')) {
1225: BIO_printf(bio_err, "RENEGOTIATING\n");
1226: SSL_renegotiate(con);
1227: cbuf_len = 0;
1228: } else {
1229: cbuf_len = i;
1230: cbuf_off = 0;
1231: }
1232:
1233: write_ssl = 1;
1234: read_tty = 0;
1235: }
1236: }
1237:
1238: ret = 0;
1239: shut:
1240: if (in_init)
1241: print_stuff(bio_c_out, con, full_log);
1242: SSL_shutdown(con);
1243: shutdown(SSL_get_fd(con), SHUT_RD);
1244: close(SSL_get_fd(con));
1245: end:
1246: if (con != NULL) {
1247: if (prexit != 0)
1248: print_stuff(bio_c_out, con, 1);
1249: SSL_free(con);
1250: }
1251: free(next_proto.data);
1252: if (ctx != NULL)
1253: SSL_CTX_free(ctx);
1254: if (cert)
1255: X509_free(cert);
1256: if (key)
1257: EVP_PKEY_free(key);
1258: free(pass);
1259: if (vpm)
1260: X509_VERIFY_PARAM_free(vpm);
1261: if (cbuf != NULL) {
1.18 jsing 1262: explicit_bzero(cbuf, BUFSIZZ);
1.1 jsing 1263: free(cbuf);
1264: }
1265: if (sbuf != NULL) {
1.18 jsing 1266: explicit_bzero(sbuf, BUFSIZZ);
1.1 jsing 1267: free(sbuf);
1268: }
1269: if (mbuf != NULL) {
1.18 jsing 1270: explicit_bzero(mbuf, BUFSIZZ);
1.1 jsing 1271: free(mbuf);
1272: }
1273: if (bio_c_out != NULL) {
1274: BIO_free(bio_c_out);
1275: bio_c_out = NULL;
1276: }
1277:
1278: return (ret);
1279: }
1280:
1281:
1282: static void
1283: print_stuff(BIO * bio, SSL * s, int full)
1284: {
1285: X509 *peer = NULL;
1286: char *p;
1287: static const char *space = " ";
1288: char buf[BUFSIZ];
1289: STACK_OF(X509) * sk;
1290: STACK_OF(X509_NAME) * sk2;
1291: const SSL_CIPHER *c;
1292: X509_NAME *xn;
1293: int j, i;
1294: unsigned char *exportedkeymat;
1295:
1296: if (full) {
1297: int got_a_chain = 0;
1298:
1299: sk = SSL_get_peer_cert_chain(s);
1300: if (sk != NULL) {
1301: got_a_chain = 1; /* we don't have it for SSL2
1302: * (yet) */
1303:
1304: BIO_printf(bio, "---\nCertificate chain\n");
1305: for (i = 0; i < sk_X509_num(sk); i++) {
1306: X509_NAME_oneline(X509_get_subject_name(
1307: sk_X509_value(sk, i)), buf, sizeof buf);
1308: BIO_printf(bio, "%2d s:%s\n", i, buf);
1309: X509_NAME_oneline(X509_get_issuer_name(
1310: sk_X509_value(sk, i)), buf, sizeof buf);
1311: BIO_printf(bio, " i:%s\n", buf);
1312: if (c_showcerts)
1313: PEM_write_bio_X509(bio, sk_X509_value(sk, i));
1314: }
1315: }
1316: BIO_printf(bio, "---\n");
1317: peer = SSL_get_peer_certificate(s);
1318: if (peer != NULL) {
1319: BIO_printf(bio, "Server certificate\n");
1320: if (!(c_showcerts && got_a_chain)) /* Redundant if we
1321: * showed the whole
1322: * chain */
1323: PEM_write_bio_X509(bio, peer);
1324: X509_NAME_oneline(X509_get_subject_name(peer),
1325: buf, sizeof buf);
1326: BIO_printf(bio, "subject=%s\n", buf);
1327: X509_NAME_oneline(X509_get_issuer_name(peer),
1328: buf, sizeof buf);
1329: BIO_printf(bio, "issuer=%s\n", buf);
1330: } else
1331: BIO_printf(bio, "no peer certificate available\n");
1332:
1333: sk2 = SSL_get_client_CA_list(s);
1334: if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
1335: BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
1336: for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
1337: xn = sk_X509_NAME_value(sk2, i);
1338: X509_NAME_oneline(xn, buf, sizeof(buf));
1339: BIO_write(bio, buf, strlen(buf));
1340: BIO_write(bio, "\n", 1);
1341: }
1342: } else {
1343: BIO_printf(bio, "---\nNo client certificate CA names sent\n");
1344: }
1345: p = SSL_get_shared_ciphers(s, buf, sizeof buf);
1346: if (p != NULL) {
1347: /*
1348: * This works only for SSL 2. In later protocol
1349: * versions, the client does not know what other
1350: * ciphers (in addition to the one to be used in the
1351: * current connection) the server supports.
1352: */
1353:
1354: BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n");
1355: j = i = 0;
1356: while (*p) {
1357: if (*p == ':') {
1358: BIO_write(bio, space, 15 - j % 25);
1359: i++;
1360: j = 0;
1361: BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
1362: } else {
1363: BIO_write(bio, p, 1);
1364: j++;
1365: }
1366: p++;
1367: }
1368: BIO_write(bio, "\n", 1);
1369: }
1370: BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1371: BIO_number_read(SSL_get_rbio(s)),
1372: BIO_number_written(SSL_get_wbio(s)));
1373: }
1374: BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
1375: c = SSL_get_current_cipher(s);
1376: BIO_printf(bio, "%s, Cipher is %s\n",
1377: SSL_CIPHER_get_version(c),
1378: SSL_CIPHER_get_name(c));
1379: if (peer != NULL) {
1380: EVP_PKEY *pktmp;
1381: pktmp = X509_get_pubkey(peer);
1382: BIO_printf(bio, "Server public key is %d bit\n",
1383: EVP_PKEY_bits(pktmp));
1384: EVP_PKEY_free(pktmp);
1385: }
1386: BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1387: SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1388:
1389: /* Compression is not supported and will always be none. */
1390: BIO_printf(bio, "Compression: NONE\n");
1391: BIO_printf(bio, "Expansion: NONE\n");
1392:
1393: #ifdef SSL_DEBUG
1394: {
1395: /* Print out local port of connection: useful for debugging */
1396: int sock;
1397: struct sockaddr_in ladd;
1398: socklen_t ladd_size = sizeof(ladd);
1399: sock = SSL_get_fd(s);
1400: getsockname(sock, (struct sockaddr *) & ladd, &ladd_size);
1401: BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1402: }
1403: #endif
1404:
1405: if (next_proto.status != -1) {
1406: const unsigned char *proto;
1407: unsigned int proto_len;
1408: SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
1409: BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
1410: BIO_write(bio, proto, proto_len);
1411: BIO_write(bio, "\n", 1);
1412: }
1.10 jsing 1413: {
1414: const unsigned char *proto;
1415: unsigned int proto_len;
1416: SSL_get0_alpn_selected(s, &proto, &proto_len);
1417: if (proto_len > 0) {
1418: BIO_printf(bio, "ALPN protocol: ");
1419: BIO_write(bio, proto, proto_len);
1420: BIO_write(bio, "\n", 1);
1421: } else
1422: BIO_printf(bio, "No ALPN negotiated\n");
1423: }
1.1 jsing 1424:
1425: #ifndef OPENSSL_NO_SRTP
1426: {
1427: SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
1428:
1429: if (srtp_profile)
1430: BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
1431: srtp_profile->name);
1432: }
1433: #endif
1434:
1435: SSL_SESSION_print(bio, SSL_get_session(s));
1436: if (keymatexportlabel != NULL) {
1437: BIO_printf(bio, "Keying material exporter:\n");
1438: BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
1439: BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
1440: exportedkeymat = malloc(keymatexportlen);
1441: if (exportedkeymat != NULL) {
1442: if (!SSL_export_keying_material(s, exportedkeymat,
1443: keymatexportlen,
1444: keymatexportlabel,
1445: strlen(keymatexportlabel),
1446: NULL, 0, 0)) {
1447: BIO_printf(bio, " Error\n");
1448: } else {
1449: BIO_printf(bio, " Keying material: ");
1450: for (i = 0; i < keymatexportlen; i++)
1451: BIO_printf(bio, "%02X",
1452: exportedkeymat[i]);
1453: BIO_printf(bio, "\n");
1454: }
1455: free(exportedkeymat);
1456: }
1457: }
1458: BIO_printf(bio, "---\n");
1459: if (peer != NULL)
1460: X509_free(peer);
1461: /* flush, or debugging output gets mixed with http response */
1462: (void) BIO_flush(bio);
1463: }
1464:
1465:
1466: static int
1467: ocsp_resp_cb(SSL * s, void *arg)
1468: {
1469: const unsigned char *p;
1470: int len;
1471: OCSP_RESPONSE *rsp;
1472: len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1473: BIO_puts(arg, "OCSP response: ");
1474: if (!p) {
1475: BIO_puts(arg, "no response sent\n");
1476: return 1;
1477: }
1478: rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1479: if (!rsp) {
1480: BIO_puts(arg, "response parse error\n");
1481: BIO_dump_indent(arg, (char *) p, len, 4);
1482: return 0;
1483: }
1484: BIO_puts(arg, "\n======================================\n");
1485: OCSP_RESPONSE_print(arg, rsp, 0);
1486: BIO_puts(arg, "======================================\n");
1487: OCSP_RESPONSE_free(rsp);
1488: return 1;
1489: }
1490: