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1.21 ! doug 1: /* $OpenBSD: s_client.c,v 1.20 2015/10/06 03:29:49 deraadt 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) {
! 368: if (pledge("stdio inet rpath wpath cpath", NULL) == -1)
! 369: perror("pledge");
! 370: }
1.1 jsing 371:
372: meth = SSLv23_client_method();
373:
374: c_Pause = 0;
375: c_quiet = 0;
376: c_ign_eof = 0;
377: c_debug = 0;
378: c_msg = 0;
379: c_showcerts = 0;
380:
381: if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
382: ((sbuf = malloc(BUFSIZZ)) == NULL) ||
383: ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
384: BIO_printf(bio_err, "out of memory\n");
385: goto end;
386: }
387: verify_depth = 0;
388: c_nbio = 0;
389:
390: argc--;
391: argv++;
392: while (argc >= 1) {
393: if (strcmp(*argv, "-host") == 0) {
394: if (--argc < 1)
395: goto bad;
396: host = *(++argv);
397: } else if (strcmp(*argv, "-port") == 0) {
398: if (--argc < 1)
399: goto bad;
400: port = *(++argv);
401: if (port == NULL || *port == '\0')
402: goto bad;
403: } else if (strcmp(*argv, "-connect") == 0) {
404: if (--argc < 1)
405: goto bad;
1.12 bluhm 406: connect = *(++argv);
407: } else if (strcmp(*argv, "-proxy") == 0) {
408: if (--argc < 1)
1.1 jsing 409: goto bad;
1.12 bluhm 410: proxy = *(++argv);
1.15 landry 411: } else if (strcmp(*argv,"-xmpphost") == 0) {
412: if (--argc < 1)
413: goto bad;
414: xmpphost= *(++argv);
1.1 jsing 415: } else if (strcmp(*argv, "-verify") == 0) {
416: verify = SSL_VERIFY_PEER;
417: if (--argc < 1)
418: goto bad;
419: verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
420: if (errstr)
421: goto bad;
422: BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
423: } else if (strcmp(*argv, "-cert") == 0) {
424: if (--argc < 1)
425: goto bad;
426: cert_file = *(++argv);
427: } else if (strcmp(*argv, "-sess_out") == 0) {
428: if (--argc < 1)
429: goto bad;
430: sess_out = *(++argv);
431: } else if (strcmp(*argv, "-sess_in") == 0) {
432: if (--argc < 1)
433: goto bad;
434: sess_in = *(++argv);
435: } else if (strcmp(*argv, "-certform") == 0) {
436: if (--argc < 1)
437: goto bad;
438: cert_format = str2fmt(*(++argv));
439: } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
440: if (badarg)
441: goto bad;
442: continue;
443: } else if (strcmp(*argv, "-verify_return_error") == 0)
444: verify_return_error = 1;
445: else if (strcmp(*argv, "-prexit") == 0)
446: prexit = 1;
447: else if (strcmp(*argv, "-crlf") == 0)
448: crlf = 1;
449: else if (strcmp(*argv, "-quiet") == 0) {
450: c_quiet = 1;
451: c_ign_eof = 1;
452: } else if (strcmp(*argv, "-ign_eof") == 0)
453: c_ign_eof = 1;
454: else if (strcmp(*argv, "-no_ign_eof") == 0)
455: c_ign_eof = 0;
456: else if (strcmp(*argv, "-pause") == 0)
457: c_Pause = 1;
458: else if (strcmp(*argv, "-debug") == 0)
459: c_debug = 1;
460: else if (strcmp(*argv, "-tlsextdebug") == 0)
461: c_tlsextdebug = 1;
462: else if (strcmp(*argv, "-status") == 0)
463: c_status_req = 1;
464: else if (strcmp(*argv, "-msg") == 0)
465: c_msg = 1;
466: else if (strcmp(*argv, "-showcerts") == 0)
467: c_showcerts = 1;
468: else if (strcmp(*argv, "-nbio_test") == 0)
469: nbio_test = 1;
470: else if (strcmp(*argv, "-state") == 0)
471: state = 1;
472: else if (strcmp(*argv, "-tls1_2") == 0)
473: meth = TLSv1_2_client_method();
474: else if (strcmp(*argv, "-tls1_1") == 0)
475: meth = TLSv1_1_client_method();
476: else if (strcmp(*argv, "-tls1") == 0)
477: meth = TLSv1_client_method();
478: #ifndef OPENSSL_NO_DTLS1
479: else if (strcmp(*argv, "-dtls1") == 0) {
480: meth = DTLSv1_client_method();
481: socket_type = SOCK_DGRAM;
482: } else if (strcmp(*argv, "-timeout") == 0)
483: enable_timeouts = 1;
484: else if (strcmp(*argv, "-mtu") == 0) {
485: if (--argc < 1)
486: goto bad;
487: socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
488: if (errstr)
489: goto bad;
490: }
491: #endif
492: else if (strcmp(*argv, "-bugs") == 0)
493: bugs = 1;
494: else if (strcmp(*argv, "-keyform") == 0) {
495: if (--argc < 1)
496: goto bad;
497: key_format = str2fmt(*(++argv));
498: } else if (strcmp(*argv, "-pass") == 0) {
499: if (--argc < 1)
500: goto bad;
501: passarg = *(++argv);
502: } else if (strcmp(*argv, "-key") == 0) {
503: if (--argc < 1)
504: goto bad;
505: key_file = *(++argv);
506: } else if (strcmp(*argv, "-reconnect") == 0) {
507: reconnect = 5;
508: } else if (strcmp(*argv, "-CApath") == 0) {
509: if (--argc < 1)
510: goto bad;
511: CApath = *(++argv);
512: } else if (strcmp(*argv, "-CAfile") == 0) {
513: if (--argc < 1)
514: goto bad;
515: CAfile = *(++argv);
516: } else if (strcmp(*argv, "-no_tls1_2") == 0)
517: off |= SSL_OP_NO_TLSv1_2;
518: else if (strcmp(*argv, "-no_tls1_1") == 0)
519: off |= SSL_OP_NO_TLSv1_1;
520: else if (strcmp(*argv, "-no_tls1") == 0)
521: off |= SSL_OP_NO_TLSv1;
522: else if (strcmp(*argv, "-no_ssl3") == 0)
523: off |= SSL_OP_NO_SSLv3;
524: else if (strcmp(*argv, "-no_ssl2") == 0)
525: off |= SSL_OP_NO_SSLv2;
526: else if (strcmp(*argv, "-no_comp") == 0) {
527: off |= SSL_OP_NO_COMPRESSION;
528: }
529: else if (strcmp(*argv, "-no_ticket") == 0) {
530: off |= SSL_OP_NO_TICKET;
531: }
532: else if (strcmp(*argv, "-nextprotoneg") == 0) {
533: if (--argc < 1)
534: goto bad;
535: next_proto_neg_in = *(++argv);
536: }
1.10 jsing 537: else if (strcmp(*argv, "-alpn") == 0) {
538: if (--argc < 1)
539: goto bad;
540: alpn_in = *(++argv);
541: } else if (strcmp(*argv, "-serverpref") == 0)
1.1 jsing 542: off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
543: else if (strcmp(*argv, "-legacy_renegotiation") == 0)
544: ; /* no-op */
545: else if (strcmp(*argv, "-legacy_server_connect") == 0) {
546: off |= SSL_OP_LEGACY_SERVER_CONNECT;
547: } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
548: clr |= SSL_OP_LEGACY_SERVER_CONNECT;
549: } else if (strcmp(*argv, "-cipher") == 0) {
550: if (--argc < 1)
551: goto bad;
552: cipher = *(++argv);
553: }
554: else if (strcmp(*argv, "-nbio") == 0) {
555: c_nbio = 1;
556: }
557: else if (strcmp(*argv, "-starttls") == 0) {
558: if (--argc < 1)
559: goto bad;
560: ++argv;
561: if (strcmp(*argv, "smtp") == 0)
562: starttls_proto = PROTO_SMTP;
563: else if (strcmp(*argv, "lmtp") == 0)
564: starttls_proto = PROTO_LMTP;
565: else if (strcmp(*argv, "pop3") == 0)
566: starttls_proto = PROTO_POP3;
567: else if (strcmp(*argv, "imap") == 0)
568: starttls_proto = PROTO_IMAP;
569: else if (strcmp(*argv, "ftp") == 0)
570: starttls_proto = PROTO_FTP;
571: else if (strcmp(*argv, "xmpp") == 0)
572: starttls_proto = PROTO_XMPP;
573: else
574: goto bad;
575: }
576: else if (strcmp(*argv, "-4") == 0) {
577: af = AF_INET;
578: } else if (strcmp(*argv, "-6") == 0) {
579: af = AF_INET6;
580: }
581: else if (strcmp(*argv, "-servername") == 0) {
582: if (--argc < 1)
583: goto bad;
584: servername = *(++argv);
585: /* meth=TLSv1_client_method(); */
586: }
587: #ifndef OPENSSL_NO_SRTP
588: else if (strcmp(*argv, "-use_srtp") == 0) {
589: if (--argc < 1)
590: goto bad;
591: srtp_profiles = *(++argv);
592: }
593: #endif
594: else if (strcmp(*argv, "-keymatexport") == 0) {
595: if (--argc < 1)
596: goto bad;
597: keymatexportlabel = *(++argv);
598: } else if (strcmp(*argv, "-keymatexportlen") == 0) {
599: if (--argc < 1)
600: goto bad;
601: keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
602: if (errstr)
603: goto bad;
604: } else {
605: BIO_printf(bio_err, "unknown option %s\n", *argv);
606: badop = 1;
607: break;
608: }
609: argc--;
610: argv++;
611: }
1.12 bluhm 612: if (proxy != NULL) {
613: if (!extract_host_port(proxy, &host, NULL, &port))
614: goto bad;
615: if (connect == NULL)
616: connect = SSL_HOST_NAME;
617: } else if (connect != NULL) {
618: if (!extract_host_port(connect, &host, NULL, &port))
619: goto bad;
620: }
1.1 jsing 621: if (badop) {
622: bad:
623: if (errstr)
624: BIO_printf(bio_err, "invalid argument %s: %s\n",
625: *argv, errstr);
626: else
627: sc_usage();
628: goto end;
629: }
630:
631: next_proto.status = -1;
632: if (next_proto_neg_in) {
633: next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
634: if (next_proto.data == NULL) {
635: BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
636: goto end;
637: }
638: } else
639: next_proto.data = NULL;
640:
641: if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
642: BIO_printf(bio_err, "Error getting password\n");
643: goto end;
644: }
645: if (key_file == NULL)
646: key_file = cert_file;
647:
648:
649: if (key_file) {
650:
1.19 bcook 651: key = load_key(bio_err, key_file, key_format, 0, pass,
1.1 jsing 652: "client certificate private key file");
653: if (!key) {
654: ERR_print_errors(bio_err);
655: goto end;
656: }
657: }
658: if (cert_file) {
659: cert = load_cert(bio_err, cert_file, cert_format,
1.19 bcook 660: NULL, "client certificate file");
1.1 jsing 661:
662: if (!cert) {
663: ERR_print_errors(bio_err);
664: goto end;
665: }
666: }
667: if (bio_c_out == NULL) {
668: if (c_quiet && !c_debug && !c_msg) {
669: bio_c_out = BIO_new(BIO_s_null());
670: } else {
671: if (bio_c_out == NULL)
672: bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
673: }
674: }
675:
676: ctx = SSL_CTX_new(meth);
677: if (ctx == NULL) {
678: ERR_print_errors(bio_err);
679: goto end;
680: }
681: if (vpm)
682: SSL_CTX_set1_param(ctx, vpm);
683:
684: #ifndef OPENSSL_NO_SRTP
685: if (srtp_profiles != NULL)
686: SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
687: #endif
688: if (bugs)
689: SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
690: else
691: SSL_CTX_set_options(ctx, off);
692:
693: if (clr)
694: SSL_CTX_clear_options(ctx, clr);
695: /*
696: * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
697: * read ahead solves this problem.
698: */
699: if (socket_type == SOCK_DGRAM)
700: SSL_CTX_set_read_ahead(ctx, 1);
701:
702: if (next_proto.data)
703: SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1.10 jsing 704: if (alpn_in) {
705: unsigned short alpn_len;
706: unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
707:
708: if (alpn == NULL) {
709: BIO_printf(bio_err, "Error parsing -alpn argument\n");
710: goto end;
711: }
712: SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
713: free(alpn);
714: }
1.1 jsing 715:
716: if (state)
717: SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
718: if (cipher != NULL)
719: if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
720: BIO_printf(bio_err, "error setting cipher list\n");
721: ERR_print_errors(bio_err);
722: goto end;
723: }
724:
725: SSL_CTX_set_verify(ctx, verify, verify_callback);
726: if (!set_cert_key_stuff(ctx, cert, key))
727: goto end;
728:
729: if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
730: (!SSL_CTX_set_default_verify_paths(ctx))) {
731: /*
732: * BIO_printf(bio_err,"error setting default verify
733: * locations\n");
734: */
735: ERR_print_errors(bio_err);
736: /* goto end; */
737: }
738: if (servername != NULL) {
739: tlsextcbp.biodebug = bio_err;
740: SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
741: SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
742: }
743:
744: con = SSL_new(ctx);
745: if (sess_in) {
746: SSL_SESSION *sess;
747: BIO *stmp = BIO_new_file(sess_in, "r");
748: if (!stmp) {
749: BIO_printf(bio_err, "Can't open session file %s\n",
750: sess_in);
751: ERR_print_errors(bio_err);
752: goto end;
753: }
754: sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
755: BIO_free(stmp);
756: if (!sess) {
757: BIO_printf(bio_err, "Can't open session file %s\n",
758: sess_in);
759: ERR_print_errors(bio_err);
760: goto end;
761: }
762: SSL_set_session(con, sess);
763: SSL_SESSION_free(sess);
764: }
765: if (servername != NULL) {
766: if (!SSL_set_tlsext_host_name(con, servername)) {
767: BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
768: ERR_print_errors(bio_err);
769: goto end;
770: }
771: }
772: /* SSL_set_cipher_list(con,"RC4-MD5"); */
773:
774: re_start:
775:
776: if (init_client(&s, host, port, socket_type, af) == 0) {
777: BIO_printf(bio_err, "connect:errno=%d\n", errno);
778: goto end;
779: }
780: BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
781:
782: if (c_nbio) {
1.3 bcook 783: if (!c_quiet)
784: BIO_printf(bio_c_out, "turning on non blocking io\n");
785: if (!BIO_socket_nbio(s, 1)) {
1.1 jsing 786: ERR_print_errors(bio_err);
787: goto end;
788: }
789: }
790: if (c_Pause & 0x01)
791: SSL_set_debug(con, 1);
792:
793: if (SSL_version(con) == DTLS1_VERSION) {
794:
795: sbio = BIO_new_dgram(s, BIO_NOCLOSE);
796: if (getsockname(s, &peer, (void *) &peerlen) < 0) {
797: BIO_printf(bio_err, "getsockname:errno=%d\n",
798: errno);
799: shutdown(s, SHUT_RD);
800: close(s);
801: goto end;
802: }
803: (void) BIO_ctrl_set_connected(sbio, 1, &peer);
804:
805: if (enable_timeouts) {
806: timeout.tv_sec = 0;
807: timeout.tv_usec = DGRAM_RCV_TIMEOUT;
808: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
809:
810: timeout.tv_sec = 0;
811: timeout.tv_usec = DGRAM_SND_TIMEOUT;
812: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
813: }
814: if (socket_mtu > 28) {
815: SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
816: SSL_set_mtu(con, socket_mtu - 28);
817: } else
818: /* want to do MTU discovery */
819: BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
820: } else
821: sbio = BIO_new_socket(s, BIO_NOCLOSE);
822:
823: if (nbio_test) {
824: BIO *test;
825:
826: test = BIO_new(BIO_f_nbio_test());
827: sbio = BIO_push(test, sbio);
828: }
829: if (c_debug) {
830: SSL_set_debug(con, 1);
831: BIO_set_callback(sbio, bio_dump_callback);
832: BIO_set_callback_arg(sbio, (char *) bio_c_out);
833: }
834: if (c_msg) {
835: SSL_set_msg_callback(con, msg_cb);
836: SSL_set_msg_callback_arg(con, bio_c_out);
837: }
838: if (c_tlsextdebug) {
839: SSL_set_tlsext_debug_callback(con, tlsext_cb);
840: SSL_set_tlsext_debug_arg(con, bio_c_out);
841: }
842: if (c_status_req) {
843: SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
844: SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
845: SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
846: }
847:
848: SSL_set_bio(con, sbio, sbio);
849: SSL_set_connect_state(con);
850:
851: /* ok, lets connect */
852: read_tty = 1;
853: write_tty = 0;
854: tty_on = 0;
855: read_ssl = 1;
856: write_ssl = 1;
857:
858: cbuf_len = 0;
859: cbuf_off = 0;
860: sbuf_len = 0;
861: sbuf_off = 0;
862:
863: /* This is an ugly hack that does a lot of assumptions */
864: /*
865: * We do have to handle multi-line responses which may come in a
866: * single packet or not. We therefore have to use BIO_gets() which
867: * does need a buffering BIO. So during the initial chitchat we do
868: * push a buffering BIO into the chain that is removed again later on
869: * to not disturb the rest of the s_client operation.
870: */
871: if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
872: int foundit = 0;
873: BIO *fbio = BIO_new(BIO_f_buffer());
874: BIO_push(fbio, sbio);
875: /* wait for multi-line response to end from SMTP */
876: do {
877: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
878: }
879: while (mbuf_len > 3 && mbuf[3] == '-');
880: /* STARTTLS command requires EHLO... */
881: BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
882: starttls_proto == PROTO_SMTP ? 'E' : 'L');
883: (void) BIO_flush(fbio);
884: /* wait for multi-line response to end EHLO SMTP response */
885: do {
886: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
887: if (strstr(mbuf, "STARTTLS"))
888: foundit = 1;
889: }
890: while (mbuf_len > 3 && mbuf[3] == '-');
891: (void) BIO_flush(fbio);
892: BIO_pop(fbio);
893: BIO_free(fbio);
894: if (!foundit)
895: BIO_printf(bio_err,
896: "didn't found starttls in server response,"
897: " try anyway...\n");
898: BIO_printf(sbio, "STARTTLS\r\n");
899: BIO_read(sbio, sbuf, BUFSIZZ);
900: } else if (starttls_proto == PROTO_POP3) {
901: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
902: if (mbuf_len == -1) {
903: BIO_printf(bio_err, "BIO_read failed\n");
904: goto end;
905: }
906: BIO_printf(sbio, "STLS\r\n");
907: BIO_read(sbio, sbuf, BUFSIZZ);
908: } else if (starttls_proto == PROTO_IMAP) {
909: int foundit = 0;
910: BIO *fbio = BIO_new(BIO_f_buffer());
911: BIO_push(fbio, sbio);
912: BIO_gets(fbio, mbuf, BUFSIZZ);
913: /* STARTTLS command requires CAPABILITY... */
914: BIO_printf(fbio, ". CAPABILITY\r\n");
915: (void) BIO_flush(fbio);
916: /* wait for multi-line CAPABILITY response */
917: do {
918: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
919: if (strstr(mbuf, "STARTTLS"))
920: foundit = 1;
921: }
922: while (mbuf_len > 3 && mbuf[0] != '.');
923: (void) BIO_flush(fbio);
924: BIO_pop(fbio);
925: BIO_free(fbio);
926: if (!foundit)
927: BIO_printf(bio_err,
928: "didn't found STARTTLS in server response,"
929: " try anyway...\n");
930: BIO_printf(sbio, ". STARTTLS\r\n");
931: BIO_read(sbio, sbuf, BUFSIZZ);
932: } else if (starttls_proto == PROTO_FTP) {
933: BIO *fbio = BIO_new(BIO_f_buffer());
934: BIO_push(fbio, sbio);
935: /* wait for multi-line response to end from FTP */
936: do {
937: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
938: }
939: while (mbuf_len > 3 && mbuf[3] == '-');
940: (void) BIO_flush(fbio);
941: BIO_pop(fbio);
942: BIO_free(fbio);
943: BIO_printf(sbio, "AUTH TLS\r\n");
944: BIO_read(sbio, sbuf, BUFSIZZ);
1.12 bluhm 945: } else if (starttls_proto == PROTO_XMPP) {
1.1 jsing 946: int seen = 0;
947: BIO_printf(sbio, "<stream:stream "
948: "xmlns:stream='http://etherx.jabber.org/streams' "
1.15 landry 949: "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host);
1.1 jsing 950: seen = BIO_read(sbio, mbuf, BUFSIZZ);
1.15 landry 951:
952: if (seen <= 0)
953: goto shut;
954:
1.1 jsing 955: mbuf[seen] = 0;
1.15 landry 956: while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") &&
957: !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) {
958: seen = BIO_read(sbio, mbuf, BUFSIZZ);
959:
960: if (seen <= 0)
1.1 jsing 961: goto shut;
1.15 landry 962:
1.1 jsing 963: mbuf[seen] = 0;
964: }
965: BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
966: seen = BIO_read(sbio, sbuf, BUFSIZZ);
967: sbuf[seen] = 0;
968: if (!strstr(sbuf, "<proceed"))
969: goto shut;
970: mbuf[0] = 0;
1.12 bluhm 971: } else if (proxy != NULL) {
972: BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect);
973: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
974: if (mbuf_len == -1) {
975: BIO_printf(bio_err, "BIO_read failed\n");
976: goto end;
977: }
1.1 jsing 978: }
979: for (;;) {
1.9 deraadt 980: struct pollfd pfd[3]; /* stdin, stdout, socket */
981: int ptimeout = -1;
1.1 jsing 982:
983: if ((SSL_version(con) == DTLS1_VERSION) &&
984: DTLSv1_get_timeout(con, &timeout))
1.9 deraadt 985: ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
1.1 jsing 986:
987: if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
988: in_init = 1;
989: tty_on = 0;
990: } else {
991: tty_on = 1;
992: if (in_init) {
993: in_init = 0;
994: if (sess_out) {
995: BIO *stmp = BIO_new_file(sess_out, "w");
996: if (stmp) {
997: PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
998: BIO_free(stmp);
999: } else
1000: BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1001: }
1002: print_stuff(bio_c_out, con, full_log);
1003: if (full_log > 0)
1004: full_log--;
1005:
1006: if (starttls_proto) {
1007: BIO_write(bio_err, mbuf, mbuf_len);
1008: /* We don't need to know any more */
1009: starttls_proto = PROTO_OFF;
1010: }
1011: if (reconnect) {
1012: reconnect--;
1013: BIO_printf(bio_c_out, "drop connection and then reconnect\n");
1014: SSL_shutdown(con);
1015: SSL_set_connect_state(con);
1016: shutdown(SSL_get_fd(con), SHUT_RD);
1017: close(SSL_get_fd(con));
1018: goto re_start;
1019: }
1020: }
1021: }
1022:
1023: ssl_pending = read_ssl && SSL_pending(con);
1024:
1.9 deraadt 1025: pfd[0].fd = -1;
1026: pfd[1].fd = -1;
1.1 jsing 1027: if (!ssl_pending) {
1028: if (tty_on) {
1.9 deraadt 1029: if (read_tty) {
1030: pfd[0].fd = fileno(stdin);
1031: pfd[0].events = POLLIN;
1032: }
1033: if (write_tty) {
1034: pfd[1].fd = fileno(stdout);
1035: pfd[1].events = POLLOUT;
1036: }
1.1 jsing 1037: }
1.9 deraadt 1038:
1039: pfd[2].fd = SSL_get_fd(con);
1040: pfd[2].events = 0;
1.1 jsing 1041: if (read_ssl)
1.9 deraadt 1042: pfd[2].events |= POLLIN;
1.1 jsing 1043: if (write_ssl)
1.9 deraadt 1044: pfd[2].events |= POLLOUT;
1045:
1.1 jsing 1046: /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
1047: tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1048:
1.9 deraadt 1049: i = poll(pfd, 3, ptimeout);
1.1 jsing 1050: if (i < 0) {
1051: BIO_printf(bio_err, "bad select %d\n",
1052: errno);
1053: goto shut;
1054: /* goto end; */
1055: }
1056: }
1057: if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1058: BIO_printf(bio_err, "TIMEOUT occured\n");
1059: }
1.9 deraadt 1060: if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1061: if (pfd[2].revents & (POLLERR|POLLNVAL)) {
1062: BIO_printf(bio_err, "poll error");
1063: goto shut;
1064: }
1.1 jsing 1065: k = SSL_write(con, &(cbuf[cbuf_off]),
1066: (unsigned int) cbuf_len);
1067: switch (SSL_get_error(con, k)) {
1068: case SSL_ERROR_NONE:
1069: cbuf_off += k;
1070: cbuf_len -= k;
1071: if (k <= 0)
1072: goto end;
1073: /* we have done a write(con,NULL,0); */
1074: if (cbuf_len <= 0) {
1075: read_tty = 1;
1076: write_ssl = 0;
1077: } else { /* if (cbuf_len > 0) */
1078: read_tty = 0;
1079: write_ssl = 1;
1080: }
1081: break;
1082: case SSL_ERROR_WANT_WRITE:
1083: BIO_printf(bio_c_out, "write W BLOCK\n");
1084: write_ssl = 1;
1085: read_tty = 0;
1086: break;
1087: case SSL_ERROR_WANT_READ:
1088: BIO_printf(bio_c_out, "write R BLOCK\n");
1089: write_tty = 0;
1090: read_ssl = 1;
1091: write_ssl = 0;
1092: break;
1093: case SSL_ERROR_WANT_X509_LOOKUP:
1094: BIO_printf(bio_c_out, "write X BLOCK\n");
1095: break;
1096: case SSL_ERROR_ZERO_RETURN:
1097: if (cbuf_len != 0) {
1098: BIO_printf(bio_c_out, "shutdown\n");
1099: ret = 0;
1100: goto shut;
1101: } else {
1102: read_tty = 1;
1103: write_ssl = 0;
1104: break;
1105: }
1106:
1107: case SSL_ERROR_SYSCALL:
1108: if ((k != 0) || (cbuf_len != 0)) {
1109: BIO_printf(bio_err, "write:errno=%d\n",
1110: errno);
1111: goto shut;
1112: } else {
1113: read_tty = 1;
1114: write_ssl = 0;
1115: }
1116: break;
1117: case SSL_ERROR_SSL:
1118: ERR_print_errors(bio_err);
1119: goto shut;
1120: }
1.9 deraadt 1121: } else if (!ssl_pending &&
1122: (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1123: if (pfd[1].revents & (POLLERR|POLLNVAL)) {
1124: BIO_printf(bio_err, "poll error");
1125: goto shut;
1126: }
1.1 jsing 1127: i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
1128:
1129: if (i <= 0) {
1130: BIO_printf(bio_c_out, "DONE\n");
1131: ret = 0;
1132: goto shut;
1133: /* goto end; */
1134: }
1135: sbuf_len -= i;
1136: sbuf_off += i;
1137: if (sbuf_len <= 0) {
1138: read_ssl = 1;
1139: write_tty = 0;
1140: }
1.9 deraadt 1141: } else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) {
1.1 jsing 1142: #ifdef RENEG
1143: {
1144: static int iiii;
1145: if (++iiii == 52) {
1146: SSL_renegotiate(con);
1147: iiii = 0;
1148: }
1149: }
1150: #endif
1151: k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1152:
1153: switch (SSL_get_error(con, k)) {
1154: case SSL_ERROR_NONE:
1155: if (k <= 0)
1156: goto end;
1157: sbuf_off = 0;
1158: sbuf_len = k;
1159:
1160: read_ssl = 0;
1161: write_tty = 1;
1162: break;
1163: case SSL_ERROR_WANT_WRITE:
1164: BIO_printf(bio_c_out, "read W BLOCK\n");
1165: write_ssl = 1;
1166: read_tty = 0;
1167: break;
1168: case SSL_ERROR_WANT_READ:
1169: BIO_printf(bio_c_out, "read R BLOCK\n");
1170: write_tty = 0;
1171: read_ssl = 1;
1172: if ((read_tty == 0) && (write_ssl == 0))
1173: write_ssl = 1;
1174: break;
1175: case SSL_ERROR_WANT_X509_LOOKUP:
1176: BIO_printf(bio_c_out, "read X BLOCK\n");
1177: break;
1178: case SSL_ERROR_SYSCALL:
1179: ret = errno;
1180: BIO_printf(bio_err, "read:errno=%d\n", ret);
1181: goto shut;
1182: case SSL_ERROR_ZERO_RETURN:
1183: BIO_printf(bio_c_out, "closed\n");
1184: ret = 0;
1185: goto shut;
1186: case SSL_ERROR_SSL:
1187: ERR_print_errors(bio_err);
1188: goto shut;
1189: /* break; */
1190: }
1.9 deraadt 1191: } else if (pfd[0].revents) {
1192: if (pfd[0].revents & (POLLERR|POLLNVAL)) {
1193: BIO_printf(bio_err, "poll error");
1194: goto shut;
1195: }
1.1 jsing 1196: if (crlf) {
1197: int j, lf_num;
1198:
1199: i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
1200: lf_num = 0;
1201: /* both loops are skipped when i <= 0 */
1202: for (j = 0; j < i; j++)
1203: if (cbuf[j] == '\n')
1204: lf_num++;
1205: for (j = i - 1; j >= 0; j--) {
1206: cbuf[j + lf_num] = cbuf[j];
1207: if (cbuf[j] == '\n') {
1208: lf_num--;
1209: i++;
1210: cbuf[j + lf_num] = '\r';
1211: }
1212: }
1213: assert(lf_num == 0);
1214: } else
1215: i = read(fileno(stdin), cbuf, BUFSIZZ);
1216:
1217: if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
1218: BIO_printf(bio_err, "DONE\n");
1219: ret = 0;
1220: goto shut;
1221: }
1222: if ((!c_ign_eof) && (cbuf[0] == 'R')) {
1223: BIO_printf(bio_err, "RENEGOTIATING\n");
1224: SSL_renegotiate(con);
1225: cbuf_len = 0;
1226: } else {
1227: cbuf_len = i;
1228: cbuf_off = 0;
1229: }
1230:
1231: write_ssl = 1;
1232: read_tty = 0;
1233: }
1234: }
1235:
1236: ret = 0;
1237: shut:
1238: if (in_init)
1239: print_stuff(bio_c_out, con, full_log);
1240: SSL_shutdown(con);
1241: shutdown(SSL_get_fd(con), SHUT_RD);
1242: close(SSL_get_fd(con));
1243: end:
1244: if (con != NULL) {
1245: if (prexit != 0)
1246: print_stuff(bio_c_out, con, 1);
1247: SSL_free(con);
1248: }
1249: free(next_proto.data);
1250: if (ctx != NULL)
1251: SSL_CTX_free(ctx);
1252: if (cert)
1253: X509_free(cert);
1254: if (key)
1255: EVP_PKEY_free(key);
1256: free(pass);
1257: if (vpm)
1258: X509_VERIFY_PARAM_free(vpm);
1259: if (cbuf != NULL) {
1.18 jsing 1260: explicit_bzero(cbuf, BUFSIZZ);
1.1 jsing 1261: free(cbuf);
1262: }
1263: if (sbuf != NULL) {
1.18 jsing 1264: explicit_bzero(sbuf, BUFSIZZ);
1.1 jsing 1265: free(sbuf);
1266: }
1267: if (mbuf != NULL) {
1.18 jsing 1268: explicit_bzero(mbuf, BUFSIZZ);
1.1 jsing 1269: free(mbuf);
1270: }
1271: if (bio_c_out != NULL) {
1272: BIO_free(bio_c_out);
1273: bio_c_out = NULL;
1274: }
1275:
1276: return (ret);
1277: }
1278:
1279:
1280: static void
1281: print_stuff(BIO * bio, SSL * s, int full)
1282: {
1283: X509 *peer = NULL;
1284: char *p;
1285: static const char *space = " ";
1286: char buf[BUFSIZ];
1287: STACK_OF(X509) * sk;
1288: STACK_OF(X509_NAME) * sk2;
1289: const SSL_CIPHER *c;
1290: X509_NAME *xn;
1291: int j, i;
1292: unsigned char *exportedkeymat;
1293:
1294: if (full) {
1295: int got_a_chain = 0;
1296:
1297: sk = SSL_get_peer_cert_chain(s);
1298: if (sk != NULL) {
1299: got_a_chain = 1; /* we don't have it for SSL2
1300: * (yet) */
1301:
1302: BIO_printf(bio, "---\nCertificate chain\n");
1303: for (i = 0; i < sk_X509_num(sk); i++) {
1304: X509_NAME_oneline(X509_get_subject_name(
1305: sk_X509_value(sk, i)), buf, sizeof buf);
1306: BIO_printf(bio, "%2d s:%s\n", i, buf);
1307: X509_NAME_oneline(X509_get_issuer_name(
1308: sk_X509_value(sk, i)), buf, sizeof buf);
1309: BIO_printf(bio, " i:%s\n", buf);
1310: if (c_showcerts)
1311: PEM_write_bio_X509(bio, sk_X509_value(sk, i));
1312: }
1313: }
1314: BIO_printf(bio, "---\n");
1315: peer = SSL_get_peer_certificate(s);
1316: if (peer != NULL) {
1317: BIO_printf(bio, "Server certificate\n");
1318: if (!(c_showcerts && got_a_chain)) /* Redundant if we
1319: * showed the whole
1320: * chain */
1321: PEM_write_bio_X509(bio, peer);
1322: X509_NAME_oneline(X509_get_subject_name(peer),
1323: buf, sizeof buf);
1324: BIO_printf(bio, "subject=%s\n", buf);
1325: X509_NAME_oneline(X509_get_issuer_name(peer),
1326: buf, sizeof buf);
1327: BIO_printf(bio, "issuer=%s\n", buf);
1328: } else
1329: BIO_printf(bio, "no peer certificate available\n");
1330:
1331: sk2 = SSL_get_client_CA_list(s);
1332: if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
1333: BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
1334: for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
1335: xn = sk_X509_NAME_value(sk2, i);
1336: X509_NAME_oneline(xn, buf, sizeof(buf));
1337: BIO_write(bio, buf, strlen(buf));
1338: BIO_write(bio, "\n", 1);
1339: }
1340: } else {
1341: BIO_printf(bio, "---\nNo client certificate CA names sent\n");
1342: }
1343: p = SSL_get_shared_ciphers(s, buf, sizeof buf);
1344: if (p != NULL) {
1345: /*
1346: * This works only for SSL 2. In later protocol
1347: * versions, the client does not know what other
1348: * ciphers (in addition to the one to be used in the
1349: * current connection) the server supports.
1350: */
1351:
1352: BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n");
1353: j = i = 0;
1354: while (*p) {
1355: if (*p == ':') {
1356: BIO_write(bio, space, 15 - j % 25);
1357: i++;
1358: j = 0;
1359: BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
1360: } else {
1361: BIO_write(bio, p, 1);
1362: j++;
1363: }
1364: p++;
1365: }
1366: BIO_write(bio, "\n", 1);
1367: }
1368: BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1369: BIO_number_read(SSL_get_rbio(s)),
1370: BIO_number_written(SSL_get_wbio(s)));
1371: }
1372: BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
1373: c = SSL_get_current_cipher(s);
1374: BIO_printf(bio, "%s, Cipher is %s\n",
1375: SSL_CIPHER_get_version(c),
1376: SSL_CIPHER_get_name(c));
1377: if (peer != NULL) {
1378: EVP_PKEY *pktmp;
1379: pktmp = X509_get_pubkey(peer);
1380: BIO_printf(bio, "Server public key is %d bit\n",
1381: EVP_PKEY_bits(pktmp));
1382: EVP_PKEY_free(pktmp);
1383: }
1384: BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1385: SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1386:
1387: /* Compression is not supported and will always be none. */
1388: BIO_printf(bio, "Compression: NONE\n");
1389: BIO_printf(bio, "Expansion: NONE\n");
1390:
1391: #ifdef SSL_DEBUG
1392: {
1393: /* Print out local port of connection: useful for debugging */
1394: int sock;
1395: struct sockaddr_in ladd;
1396: socklen_t ladd_size = sizeof(ladd);
1397: sock = SSL_get_fd(s);
1398: getsockname(sock, (struct sockaddr *) & ladd, &ladd_size);
1399: BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1400: }
1401: #endif
1402:
1403: if (next_proto.status != -1) {
1404: const unsigned char *proto;
1405: unsigned int proto_len;
1406: SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
1407: BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
1408: BIO_write(bio, proto, proto_len);
1409: BIO_write(bio, "\n", 1);
1410: }
1.10 jsing 1411: {
1412: const unsigned char *proto;
1413: unsigned int proto_len;
1414: SSL_get0_alpn_selected(s, &proto, &proto_len);
1415: if (proto_len > 0) {
1416: BIO_printf(bio, "ALPN protocol: ");
1417: BIO_write(bio, proto, proto_len);
1418: BIO_write(bio, "\n", 1);
1419: } else
1420: BIO_printf(bio, "No ALPN negotiated\n");
1421: }
1.1 jsing 1422:
1423: #ifndef OPENSSL_NO_SRTP
1424: {
1425: SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
1426:
1427: if (srtp_profile)
1428: BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
1429: srtp_profile->name);
1430: }
1431: #endif
1432:
1433: SSL_SESSION_print(bio, SSL_get_session(s));
1434: if (keymatexportlabel != NULL) {
1435: BIO_printf(bio, "Keying material exporter:\n");
1436: BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
1437: BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
1438: exportedkeymat = malloc(keymatexportlen);
1439: if (exportedkeymat != NULL) {
1440: if (!SSL_export_keying_material(s, exportedkeymat,
1441: keymatexportlen,
1442: keymatexportlabel,
1443: strlen(keymatexportlabel),
1444: NULL, 0, 0)) {
1445: BIO_printf(bio, " Error\n");
1446: } else {
1447: BIO_printf(bio, " Keying material: ");
1448: for (i = 0; i < keymatexportlen; i++)
1449: BIO_printf(bio, "%02X",
1450: exportedkeymat[i]);
1451: BIO_printf(bio, "\n");
1452: }
1453: free(exportedkeymat);
1454: }
1455: }
1456: BIO_printf(bio, "---\n");
1457: if (peer != NULL)
1458: X509_free(peer);
1459: /* flush, or debugging output gets mixed with http response */
1460: (void) BIO_flush(bio);
1461: }
1462:
1463:
1464: static int
1465: ocsp_resp_cb(SSL * s, void *arg)
1466: {
1467: const unsigned char *p;
1468: int len;
1469: OCSP_RESPONSE *rsp;
1470: len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1471: BIO_puts(arg, "OCSP response: ");
1472: if (!p) {
1473: BIO_puts(arg, "no response sent\n");
1474: return 1;
1475: }
1476: rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1477: if (!rsp) {
1478: BIO_puts(arg, "response parse error\n");
1479: BIO_dump_indent(arg, (char *) p, len, 4);
1480: return 0;
1481: }
1482: BIO_puts(arg, "\n======================================\n");
1483: OCSP_RESPONSE_print(arg, rsp, 0);
1484: BIO_puts(arg, "======================================\n");
1485: OCSP_RESPONSE_free(rsp);
1486: return 1;
1487: }
1488: