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1.13 ! jsing 1: /* $OpenBSD: s_client.c,v 1.12 2015/01/13 10:48:24 bluhm Exp $ */
1.1 jsing 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young (eay@cryptsoft.com).
7: * The implementation was written so as to conform with Netscapes SSL.
8: *
9: * This library is free for commercial and non-commercial use as long as
10: * the following conditions are aheared to. The following conditions
11: * apply to all code found in this distribution, be it the RC4, RSA,
12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13: * included with this distribution is covered by the same copyright terms
14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15: *
16: * Copyright remains Eric Young's, and as such any Copyright notices in
17: * the code are not to be removed.
18: * If this package is used in a product, Eric Young should be given attribution
19: * as the author of the parts of the library used.
20: * This can be in the form of a textual message at program startup or
21: * in documentation (online or textual) provided with the package.
22: *
23: * Redistribution and use in source and binary forms, with or without
24: * modification, are permitted provided that the following conditions
25: * are met:
26: * 1. Redistributions of source code must retain the copyright
27: * notice, this list of conditions and the following disclaimer.
28: * 2. Redistributions in binary form must reproduce the above copyright
29: * notice, this list of conditions and the following disclaimer in the
30: * documentation and/or other materials provided with the distribution.
31: * 3. All advertising materials mentioning features or use of this software
32: * must display the following acknowledgement:
33: * "This product includes cryptographic software written by
34: * Eric Young (eay@cryptsoft.com)"
35: * The word 'cryptographic' can be left out if the rouines from the library
36: * being used are not cryptographic related :-).
37: * 4. If you include any Windows specific code (or a derivative thereof) from
38: * the apps directory (application code) you must include an acknowledgement:
39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40: *
41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51: * SUCH DAMAGE.
52: *
53: * The licence and distribution terms for any publically available version or
54: * derivative of this code cannot be changed. i.e. this code cannot simply be
55: * copied and put under another distribution licence
56: * [including the GNU Public Licence.]
57: */
58: /* ====================================================================
59: * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60: *
61: * Redistribution and use in source and binary forms, with or without
62: * modification, are permitted provided that the following conditions
63: * are met:
64: *
65: * 1. Redistributions of source code must retain the above copyright
66: * notice, this list of conditions and the following disclaimer.
67: *
68: * 2. Redistributions in binary form must reproduce the above copyright
69: * notice, this list of conditions and the following disclaimer in
70: * the documentation and/or other materials provided with the
71: * distribution.
72: *
73: * 3. All advertising materials mentioning features or use of this
74: * software must display the following acknowledgment:
75: * "This product includes software developed by the OpenSSL Project
76: * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77: *
78: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79: * endorse or promote products derived from this software without
80: * prior written permission. For written permission, please contact
81: * openssl-core@openssl.org.
82: *
83: * 5. Products derived from this software may not be called "OpenSSL"
84: * nor may "OpenSSL" appear in their names without prior written
85: * permission of the OpenSSL Project.
86: *
87: * 6. Redistributions of any form whatsoever must retain the following
88: * acknowledgment:
89: * "This product includes software developed by the OpenSSL Project
90: * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91: *
92: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103: * OF THE POSSIBILITY OF SUCH DAMAGE.
104: * ====================================================================
105: *
106: * This product includes cryptographic software written by Eric Young
107: * (eay@cryptsoft.com). This product includes software written by Tim
108: * Hudson (tjh@cryptsoft.com).
109: *
110: */
111: /* ====================================================================
112: * Copyright 2005 Nokia. All rights reserved.
113: *
114: * The portions of the attached software ("Contribution") is developed by
115: * Nokia Corporation and is licensed pursuant to the OpenSSL open source
116: * license.
117: *
118: * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119: * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120: * support (see RFC 4279) to OpenSSL.
121: *
122: * No patent licenses or other rights except those expressly stated in
123: * the OpenSSL open source license shall be deemed granted or received
124: * expressly, by implication, estoppel, or otherwise.
125: *
126: * No assurances are provided by Nokia that the Contribution does not
127: * infringe the patent or other intellectual property rights of any third
128: * party or that the license provides you with all the necessary rights
129: * to make use of the Contribution.
130: *
131: * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132: * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133: * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134: * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
135: * OTHERWISE.
136: */
137:
138: #include <sys/types.h>
139: #include <sys/ioctl.h>
140: #include <sys/socket.h>
141:
142: #include <netinet/in.h>
143:
144: #include <assert.h>
145: #include <ctype.h>
146: #include <limits.h>
147: #include <netdb.h>
148: #include <stdio.h>
149: #include <stdlib.h>
150: #include <string.h>
151: #include <unistd.h>
1.9 deraadt 152: #include <poll.h>
1.1 jsing 153:
154: #include "apps.h"
155:
156: #include <openssl/bn.h>
157: #include <openssl/err.h>
158: #include <openssl/ocsp.h>
159: #include <openssl/pem.h>
160: #include <openssl/ssl.h>
161: #include <openssl/x509.h>
162:
163: #include "s_apps.h"
164: #include "timeouts.h"
165:
166: /*#define SSL_HOST_NAME "www.netscape.com" */
167: /*#define SSL_HOST_NAME "193.118.187.102" */
168: #define SSL_HOST_NAME "localhost"
169:
170: /*#define TEST_CERT "client.pem" *//* no default cert. */
171:
172: #define BUFSIZZ 1024*8
173:
174: static int c_nbio = 0;
175: static int c_Pause = 0;
176: static int c_debug = 0;
177: static int c_tlsextdebug = 0;
178: static int c_status_req = 0;
179: static int c_msg = 0;
180: static int c_showcerts = 0;
181:
182: static char *keymatexportlabel = NULL;
183: static int keymatexportlen = 20;
184:
185: static void sc_usage(void);
186: static void print_stuff(BIO * berr, SSL * con, int full);
187: static int ocsp_resp_cb(SSL * s, void *arg);
188: static BIO *bio_c_out = NULL;
189: static int c_quiet = 0;
190: static int c_ign_eof = 0;
191:
192:
193: static void
194: sc_usage(void)
195: {
196: BIO_printf(bio_err, "usage: s_client args\n");
197: BIO_printf(bio_err, "\n");
198: BIO_printf(bio_err, " -4 - Force IPv4\n");
199: BIO_printf(bio_err, " -6 - Force IPv6\n");
200: BIO_printf(bio_err, " -host host - use -connect instead\n");
201: BIO_printf(bio_err, " -port port - use -connect instead\n");
202: BIO_printf(bio_err, " -connect host:port - who to connect to (default is %s:%s)\n", SSL_HOST_NAME, PORT_STR);
1.12 bluhm 203: BIO_printf(bio_err, " -proxy host:port - connect to http proxy\n");
1.1 jsing 204:
205: BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n");
206: BIO_printf(bio_err, " -cert arg - certificate file to use, PEM format assumed\n");
207: BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n");
208: BIO_printf(bio_err, " -key arg - Private key file to use, in cert file if\n");
209: BIO_printf(bio_err, " not specified but cert file is.\n");
210: BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n");
211: BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n");
212: BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
213: BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
214: BIO_printf(bio_err, " -reconnect - Drop and re-make the connection with the same Session-ID\n");
215: BIO_printf(bio_err, " -pause - sleep(1) after each read(2) and write(2) system call\n");
216: BIO_printf(bio_err, " -showcerts - show all certificates in the chain\n");
217: BIO_printf(bio_err, " -debug - extra output\n");
218: BIO_printf(bio_err, " -msg - Show protocol messages\n");
219: BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n");
220: BIO_printf(bio_err, " -state - print the 'ssl' states\n");
221: BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
222: BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n");
223: BIO_printf(bio_err, " -quiet - no s_client output\n");
224: BIO_printf(bio_err, " -ign_eof - ignore input eof (default when -quiet)\n");
225: BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n");
226: BIO_printf(bio_err, " -ssl3 - just use SSLv3\n");
227: BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n");
228: BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n");
229: BIO_printf(bio_err, " -tls1 - just use TLSv1\n");
230: BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n");
231: BIO_printf(bio_err, " -mtu - set the link layer MTU\n");
232: BIO_printf(bio_err, " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
233: BIO_printf(bio_err, " -bugs - Switch on all SSL implementation bug workarounds\n");
234: BIO_printf(bio_err, " -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
235: BIO_printf(bio_err, " command to see what is available\n");
236: BIO_printf(bio_err, " -starttls prot - use the STARTTLS command before starting TLS\n");
237: BIO_printf(bio_err, " for those protocols that support it, where\n");
238: BIO_printf(bio_err, " 'prot' defines which one to assume. Currently,\n");
239: BIO_printf(bio_err, " only \"smtp\", \"lmtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
240: BIO_printf(bio_err, " are supported.\n");
241: #ifndef OPENSSL_NO_ENGINE
242: BIO_printf(bio_err, " -engine id - Initialise and use the specified engine\n");
243: #endif
244: BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
245: BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n");
246: BIO_printf(bio_err, " -servername host - Set TLS extension servername in ClientHello\n");
247: BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n");
248: BIO_printf(bio_err, " -status - request certificate status from server\n");
249: BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n");
250: BIO_printf(bio_err, " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
1.10 jsing 251: BIO_printf(bio_err, " -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
1.1 jsing 252: #ifndef OPENSSL_NO_SRTP
253: BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
254: #endif
255: BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n");
256: BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
257: }
258:
259:
260: /* This is a context that we pass to callbacks */
261: typedef struct tlsextctx_st {
262: BIO *biodebug;
263: int ack;
264: } tlsextctx;
265:
266:
267: static int
268: ssl_servername_cb(SSL * s, int *ad, void *arg)
269: {
270: tlsextctx *p = (tlsextctx *) arg;
271: const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
272: if (SSL_get_servername_type(s) != -1)
273: p->ack = !SSL_session_reused(s) && hn != NULL;
274: else
275: BIO_printf(bio_err, "Can't use SSL_get_servername\n");
276:
277: return SSL_TLSEXT_ERR_OK;
278: }
279:
280: #ifndef OPENSSL_NO_SRTP
281: char *srtp_profiles = NULL;
282: #endif
283:
284: /* This the context that we pass to next_proto_cb */
285: typedef struct tlsextnextprotoctx_st {
286: unsigned char *data;
287: unsigned short len;
288: int status;
289: } tlsextnextprotoctx;
290:
291: static tlsextnextprotoctx next_proto;
292:
293: static int
294: next_proto_cb(SSL * s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
295: {
296: tlsextnextprotoctx *ctx = arg;
297:
298: if (!c_quiet) {
299: /* We can assume that |in| is syntactically valid. */
300: unsigned i;
301: BIO_printf(bio_c_out, "Protocols advertised by server: ");
302: for (i = 0; i < inlen;) {
303: if (i)
304: BIO_write(bio_c_out, ", ", 2);
305: BIO_write(bio_c_out, &in[i + 1], in[i]);
306: i += in[i] + 1;
307: }
308: BIO_write(bio_c_out, "\n", 1);
309: }
310: ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
311: return SSL_TLSEXT_ERR_OK;
312: }
313:
314: enum {
315: PROTO_OFF = 0,
316: PROTO_SMTP,
317: PROTO_LMTP,
318: PROTO_POP3,
319: PROTO_IMAP,
320: PROTO_FTP,
321: PROTO_XMPP
322: };
323:
324: int s_client_main(int, char **);
325:
326: int
327: s_client_main(int argc, char **argv)
328: {
329: unsigned int off = 0, clr = 0;
330: SSL *con = NULL;
1.9 deraadt 331: int s, k, state = 0, af = AF_UNSPEC;
1.1 jsing 332: char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
333: int cbuf_len, cbuf_off;
334: int sbuf_len, sbuf_off;
335: char *port = PORT_STR;
336: int full_log = 1;
337: char *host = SSL_HOST_NAME;
1.12 bluhm 338: char *proxy = NULL, *connect = NULL;
1.1 jsing 339: char *cert_file = NULL, *key_file = NULL;
340: int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
341: char *passarg = NULL, *pass = NULL;
342: X509 *cert = NULL;
343: EVP_PKEY *key = NULL;
344: char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
345: int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
346: int crlf = 0;
347: int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
348: SSL_CTX *ctx = NULL;
349: int ret = 1, in_init = 1, i, nbio_test = 0;
350: int starttls_proto = PROTO_OFF;
351: int prexit = 0;
352: X509_VERIFY_PARAM *vpm = NULL;
353: int badarg = 0;
354: const SSL_METHOD *meth = NULL;
355: int socket_type = SOCK_STREAM;
356: BIO *sbio;
357: int mbuf_len = 0;
1.9 deraadt 358: struct timeval timeout;
1.1 jsing 359: const char *errstr = NULL;
360: #ifndef OPENSSL_NO_ENGINE
361: char *engine_id = NULL;
362: char *ssl_client_engine_id = NULL;
363: ENGINE *ssl_client_engine = NULL;
364: #endif
365: ENGINE *e = NULL;
366: char *servername = NULL;
367: tlsextctx tlsextcbp =
368: {NULL, 0};
369: const char *next_proto_neg_in = NULL;
1.10 jsing 370: const char *alpn_in = NULL;
1.1 jsing 371: char *sess_in = NULL;
372: char *sess_out = NULL;
373: struct sockaddr peer;
374: int peerlen = sizeof(peer);
375: int enable_timeouts = 0;
376: long socket_mtu = 0;
377:
378: meth = SSLv23_client_method();
379:
380: c_Pause = 0;
381: c_quiet = 0;
382: c_ign_eof = 0;
383: c_debug = 0;
384: c_msg = 0;
385: c_showcerts = 0;
386:
387: if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
388: ((sbuf = malloc(BUFSIZZ)) == NULL) ||
389: ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
390: BIO_printf(bio_err, "out of memory\n");
391: goto end;
392: }
393: verify_depth = 0;
394: verify_error = X509_V_OK;
395: c_nbio = 0;
396:
397: argc--;
398: argv++;
399: while (argc >= 1) {
400: if (strcmp(*argv, "-host") == 0) {
401: if (--argc < 1)
402: goto bad;
403: host = *(++argv);
404: } else if (strcmp(*argv, "-port") == 0) {
405: if (--argc < 1)
406: goto bad;
407: port = *(++argv);
408: if (port == NULL || *port == '\0')
409: goto bad;
410: } else if (strcmp(*argv, "-connect") == 0) {
411: if (--argc < 1)
412: goto bad;
1.12 bluhm 413: connect = *(++argv);
414: } else if (strcmp(*argv, "-proxy") == 0) {
415: if (--argc < 1)
1.1 jsing 416: goto bad;
1.12 bluhm 417: proxy = *(++argv);
1.1 jsing 418: } else if (strcmp(*argv, "-verify") == 0) {
419: verify = SSL_VERIFY_PEER;
420: if (--argc < 1)
421: goto bad;
422: verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
423: if (errstr)
424: goto bad;
425: BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
426: } else if (strcmp(*argv, "-cert") == 0) {
427: if (--argc < 1)
428: goto bad;
429: cert_file = *(++argv);
430: } else if (strcmp(*argv, "-sess_out") == 0) {
431: if (--argc < 1)
432: goto bad;
433: sess_out = *(++argv);
434: } else if (strcmp(*argv, "-sess_in") == 0) {
435: if (--argc < 1)
436: goto bad;
437: sess_in = *(++argv);
438: } else if (strcmp(*argv, "-certform") == 0) {
439: if (--argc < 1)
440: goto bad;
441: cert_format = str2fmt(*(++argv));
442: } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
443: if (badarg)
444: goto bad;
445: continue;
446: } else if (strcmp(*argv, "-verify_return_error") == 0)
447: verify_return_error = 1;
448: else if (strcmp(*argv, "-prexit") == 0)
449: prexit = 1;
450: else if (strcmp(*argv, "-crlf") == 0)
451: crlf = 1;
452: else if (strcmp(*argv, "-quiet") == 0) {
453: c_quiet = 1;
454: c_ign_eof = 1;
455: } else if (strcmp(*argv, "-ign_eof") == 0)
456: c_ign_eof = 1;
457: else if (strcmp(*argv, "-no_ign_eof") == 0)
458: c_ign_eof = 0;
459: else if (strcmp(*argv, "-pause") == 0)
460: c_Pause = 1;
461: else if (strcmp(*argv, "-debug") == 0)
462: c_debug = 1;
463: else if (strcmp(*argv, "-tlsextdebug") == 0)
464: c_tlsextdebug = 1;
465: else if (strcmp(*argv, "-status") == 0)
466: c_status_req = 1;
467: else if (strcmp(*argv, "-msg") == 0)
468: c_msg = 1;
469: else if (strcmp(*argv, "-showcerts") == 0)
470: c_showcerts = 1;
471: else if (strcmp(*argv, "-nbio_test") == 0)
472: nbio_test = 1;
473: else if (strcmp(*argv, "-state") == 0)
474: state = 1;
475: else if (strcmp(*argv, "-ssl3") == 0)
476: meth = SSLv3_client_method();
477: else if (strcmp(*argv, "-tls1_2") == 0)
478: meth = TLSv1_2_client_method();
479: else if (strcmp(*argv, "-tls1_1") == 0)
480: meth = TLSv1_1_client_method();
481: else if (strcmp(*argv, "-tls1") == 0)
482: meth = TLSv1_client_method();
483: #ifndef OPENSSL_NO_DTLS1
484: else if (strcmp(*argv, "-dtls1") == 0) {
485: meth = DTLSv1_client_method();
486: socket_type = SOCK_DGRAM;
487: } else if (strcmp(*argv, "-timeout") == 0)
488: enable_timeouts = 1;
489: else if (strcmp(*argv, "-mtu") == 0) {
490: if (--argc < 1)
491: goto bad;
492: socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
493: if (errstr)
494: goto bad;
495: }
496: #endif
497: else if (strcmp(*argv, "-bugs") == 0)
498: bugs = 1;
499: else if (strcmp(*argv, "-keyform") == 0) {
500: if (--argc < 1)
501: goto bad;
502: key_format = str2fmt(*(++argv));
503: } else if (strcmp(*argv, "-pass") == 0) {
504: if (--argc < 1)
505: goto bad;
506: passarg = *(++argv);
507: } else if (strcmp(*argv, "-key") == 0) {
508: if (--argc < 1)
509: goto bad;
510: key_file = *(++argv);
511: } else if (strcmp(*argv, "-reconnect") == 0) {
512: reconnect = 5;
513: } else if (strcmp(*argv, "-CApath") == 0) {
514: if (--argc < 1)
515: goto bad;
516: CApath = *(++argv);
517: } else if (strcmp(*argv, "-CAfile") == 0) {
518: if (--argc < 1)
519: goto bad;
520: CAfile = *(++argv);
521: } else if (strcmp(*argv, "-no_tls1_2") == 0)
522: off |= SSL_OP_NO_TLSv1_2;
523: else if (strcmp(*argv, "-no_tls1_1") == 0)
524: off |= SSL_OP_NO_TLSv1_1;
525: else if (strcmp(*argv, "-no_tls1") == 0)
526: off |= SSL_OP_NO_TLSv1;
527: else if (strcmp(*argv, "-no_ssl3") == 0)
528: off |= SSL_OP_NO_SSLv3;
529: else if (strcmp(*argv, "-no_ssl2") == 0)
530: off |= SSL_OP_NO_SSLv2;
531: else if (strcmp(*argv, "-no_comp") == 0) {
532: off |= SSL_OP_NO_COMPRESSION;
533: }
534: else if (strcmp(*argv, "-no_ticket") == 0) {
535: off |= SSL_OP_NO_TICKET;
536: }
537: else if (strcmp(*argv, "-nextprotoneg") == 0) {
538: if (--argc < 1)
539: goto bad;
540: next_proto_neg_in = *(++argv);
541: }
1.10 jsing 542: else if (strcmp(*argv, "-alpn") == 0) {
543: if (--argc < 1)
544: goto bad;
545: alpn_in = *(++argv);
546: } else if (strcmp(*argv, "-serverpref") == 0)
1.1 jsing 547: off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
548: else if (strcmp(*argv, "-legacy_renegotiation") == 0)
549: ; /* no-op */
550: else if (strcmp(*argv, "-legacy_server_connect") == 0) {
551: off |= SSL_OP_LEGACY_SERVER_CONNECT;
552: } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
553: clr |= SSL_OP_LEGACY_SERVER_CONNECT;
554: } else if (strcmp(*argv, "-cipher") == 0) {
555: if (--argc < 1)
556: goto bad;
557: cipher = *(++argv);
558: }
559: else if (strcmp(*argv, "-nbio") == 0) {
560: c_nbio = 1;
561: }
562: else if (strcmp(*argv, "-starttls") == 0) {
563: if (--argc < 1)
564: goto bad;
565: ++argv;
566: if (strcmp(*argv, "smtp") == 0)
567: starttls_proto = PROTO_SMTP;
568: else if (strcmp(*argv, "lmtp") == 0)
569: starttls_proto = PROTO_LMTP;
570: else if (strcmp(*argv, "pop3") == 0)
571: starttls_proto = PROTO_POP3;
572: else if (strcmp(*argv, "imap") == 0)
573: starttls_proto = PROTO_IMAP;
574: else if (strcmp(*argv, "ftp") == 0)
575: starttls_proto = PROTO_FTP;
576: else if (strcmp(*argv, "xmpp") == 0)
577: starttls_proto = PROTO_XMPP;
578: else
579: goto bad;
580: }
581: #ifndef OPENSSL_NO_ENGINE
582: else if (strcmp(*argv, "-engine") == 0) {
583: if (--argc < 1)
584: goto bad;
585: engine_id = *(++argv);
586: } else if (strcmp(*argv, "-ssl_client_engine") == 0) {
587: if (--argc < 1)
588: goto bad;
589: ssl_client_engine_id = *(++argv);
590: }
591: #endif
592: else if (strcmp(*argv, "-4") == 0) {
593: af = AF_INET;
594: } else if (strcmp(*argv, "-6") == 0) {
595: af = AF_INET6;
596: }
597: else if (strcmp(*argv, "-servername") == 0) {
598: if (--argc < 1)
599: goto bad;
600: servername = *(++argv);
601: /* meth=TLSv1_client_method(); */
602: }
603: #ifndef OPENSSL_NO_SRTP
604: else if (strcmp(*argv, "-use_srtp") == 0) {
605: if (--argc < 1)
606: goto bad;
607: srtp_profiles = *(++argv);
608: }
609: #endif
610: else if (strcmp(*argv, "-keymatexport") == 0) {
611: if (--argc < 1)
612: goto bad;
613: keymatexportlabel = *(++argv);
614: } else if (strcmp(*argv, "-keymatexportlen") == 0) {
615: if (--argc < 1)
616: goto bad;
617: keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
618: if (errstr)
619: goto bad;
620: } else {
621: BIO_printf(bio_err, "unknown option %s\n", *argv);
622: badop = 1;
623: break;
624: }
625: argc--;
626: argv++;
627: }
1.12 bluhm 628: if (proxy != NULL) {
629: if (!extract_host_port(proxy, &host, NULL, &port))
630: goto bad;
631: if (connect == NULL)
632: connect = SSL_HOST_NAME;
633: } else if (connect != NULL) {
634: if (!extract_host_port(connect, &host, NULL, &port))
635: goto bad;
636: }
1.1 jsing 637: if (badop) {
638: bad:
639: if (errstr)
640: BIO_printf(bio_err, "invalid argument %s: %s\n",
641: *argv, errstr);
642: else
643: sc_usage();
644: goto end;
645: }
646:
647: next_proto.status = -1;
648: if (next_proto_neg_in) {
649: next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
650: if (next_proto.data == NULL) {
651: BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
652: goto end;
653: }
654: } else
655: next_proto.data = NULL;
656:
657: #ifndef OPENSSL_NO_ENGINE
658: e = setup_engine(bio_err, engine_id, 1);
659: if (ssl_client_engine_id) {
660: ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
661: if (!ssl_client_engine) {
662: BIO_printf(bio_err,
663: "Error getting client auth engine\n");
664: goto end;
665: }
666: }
667: #endif
668: if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
669: BIO_printf(bio_err, "Error getting password\n");
670: goto end;
671: }
672: if (key_file == NULL)
673: key_file = cert_file;
674:
675:
676: if (key_file) {
677:
678: key = load_key(bio_err, key_file, key_format, 0, pass, e,
679: "client certificate private key file");
680: if (!key) {
681: ERR_print_errors(bio_err);
682: goto end;
683: }
684: }
685: if (cert_file) {
686: cert = load_cert(bio_err, cert_file, cert_format,
687: NULL, e, "client certificate file");
688:
689: if (!cert) {
690: ERR_print_errors(bio_err);
691: goto end;
692: }
693: }
694: if (bio_c_out == NULL) {
695: if (c_quiet && !c_debug && !c_msg) {
696: bio_c_out = BIO_new(BIO_s_null());
697: } else {
698: if (bio_c_out == NULL)
699: bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
700: }
701: }
702:
703: ctx = SSL_CTX_new(meth);
704: if (ctx == NULL) {
705: ERR_print_errors(bio_err);
706: goto end;
707: }
708: if (vpm)
709: SSL_CTX_set1_param(ctx, vpm);
710:
711: #ifndef OPENSSL_NO_ENGINE
712: if (ssl_client_engine) {
713: if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
714: BIO_puts(bio_err, "Error setting client auth engine\n");
715: ERR_print_errors(bio_err);
716: ENGINE_free(ssl_client_engine);
717: goto end;
718: }
719: ENGINE_free(ssl_client_engine);
720: }
721: #endif
722:
723: #ifndef OPENSSL_NO_SRTP
724: if (srtp_profiles != NULL)
725: SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
726: #endif
727: if (bugs)
728: SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
729: else
730: SSL_CTX_set_options(ctx, off);
731:
732: if (clr)
733: SSL_CTX_clear_options(ctx, clr);
734: /*
735: * DTLS: partial reads end up discarding unread UDP bytes :-( Setting
736: * read ahead solves this problem.
737: */
738: if (socket_type == SOCK_DGRAM)
739: SSL_CTX_set_read_ahead(ctx, 1);
740:
741: if (next_proto.data)
742: SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1.10 jsing 743: if (alpn_in) {
744: unsigned short alpn_len;
745: unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
746:
747: if (alpn == NULL) {
748: BIO_printf(bio_err, "Error parsing -alpn argument\n");
749: goto end;
750: }
751: SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
752: free(alpn);
753: }
1.1 jsing 754:
755: if (state)
756: SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
757: if (cipher != NULL)
758: if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
759: BIO_printf(bio_err, "error setting cipher list\n");
760: ERR_print_errors(bio_err);
761: goto end;
762: }
763:
764: SSL_CTX_set_verify(ctx, verify, verify_callback);
765: if (!set_cert_key_stuff(ctx, cert, key))
766: goto end;
767:
768: if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
769: (!SSL_CTX_set_default_verify_paths(ctx))) {
770: /*
771: * BIO_printf(bio_err,"error setting default verify
772: * locations\n");
773: */
774: ERR_print_errors(bio_err);
775: /* goto end; */
776: }
777: if (servername != NULL) {
778: tlsextcbp.biodebug = bio_err;
779: SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
780: SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
781: }
782:
783: con = SSL_new(ctx);
784: if (sess_in) {
785: SSL_SESSION *sess;
786: BIO *stmp = BIO_new_file(sess_in, "r");
787: if (!stmp) {
788: BIO_printf(bio_err, "Can't open session file %s\n",
789: sess_in);
790: ERR_print_errors(bio_err);
791: goto end;
792: }
793: sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
794: BIO_free(stmp);
795: if (!sess) {
796: BIO_printf(bio_err, "Can't open session file %s\n",
797: sess_in);
798: ERR_print_errors(bio_err);
799: goto end;
800: }
801: SSL_set_session(con, sess);
802: SSL_SESSION_free(sess);
803: }
804: if (servername != NULL) {
805: if (!SSL_set_tlsext_host_name(con, servername)) {
806: BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
807: ERR_print_errors(bio_err);
808: goto end;
809: }
810: }
811: /* SSL_set_cipher_list(con,"RC4-MD5"); */
812:
813: re_start:
814:
815: if (init_client(&s, host, port, socket_type, af) == 0) {
816: BIO_printf(bio_err, "connect:errno=%d\n", errno);
817: goto end;
818: }
819: BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
820:
821: if (c_nbio) {
1.3 bcook 822: if (!c_quiet)
823: BIO_printf(bio_c_out, "turning on non blocking io\n");
824: if (!BIO_socket_nbio(s, 1)) {
1.1 jsing 825: ERR_print_errors(bio_err);
826: goto end;
827: }
828: }
829: if (c_Pause & 0x01)
830: SSL_set_debug(con, 1);
831:
832: if (SSL_version(con) == DTLS1_VERSION) {
833:
834: sbio = BIO_new_dgram(s, BIO_NOCLOSE);
835: if (getsockname(s, &peer, (void *) &peerlen) < 0) {
836: BIO_printf(bio_err, "getsockname:errno=%d\n",
837: errno);
838: shutdown(s, SHUT_RD);
839: close(s);
840: goto end;
841: }
842: (void) BIO_ctrl_set_connected(sbio, 1, &peer);
843:
844: if (enable_timeouts) {
845: timeout.tv_sec = 0;
846: timeout.tv_usec = DGRAM_RCV_TIMEOUT;
847: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
848:
849: timeout.tv_sec = 0;
850: timeout.tv_usec = DGRAM_SND_TIMEOUT;
851: BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
852: }
853: if (socket_mtu > 28) {
854: SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
855: SSL_set_mtu(con, socket_mtu - 28);
856: } else
857: /* want to do MTU discovery */
858: BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
859: } else
860: sbio = BIO_new_socket(s, BIO_NOCLOSE);
861:
862: if (nbio_test) {
863: BIO *test;
864:
865: test = BIO_new(BIO_f_nbio_test());
866: sbio = BIO_push(test, sbio);
867: }
868: if (c_debug) {
869: SSL_set_debug(con, 1);
870: BIO_set_callback(sbio, bio_dump_callback);
871: BIO_set_callback_arg(sbio, (char *) bio_c_out);
872: }
873: if (c_msg) {
874: SSL_set_msg_callback(con, msg_cb);
875: SSL_set_msg_callback_arg(con, bio_c_out);
876: }
877: if (c_tlsextdebug) {
878: SSL_set_tlsext_debug_callback(con, tlsext_cb);
879: SSL_set_tlsext_debug_arg(con, bio_c_out);
880: }
881: if (c_status_req) {
882: SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
883: SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
884: SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
885: }
886:
887: SSL_set_bio(con, sbio, sbio);
888: SSL_set_connect_state(con);
889:
890: /* ok, lets connect */
891: read_tty = 1;
892: write_tty = 0;
893: tty_on = 0;
894: read_ssl = 1;
895: write_ssl = 1;
896:
897: cbuf_len = 0;
898: cbuf_off = 0;
899: sbuf_len = 0;
900: sbuf_off = 0;
901:
902: /* This is an ugly hack that does a lot of assumptions */
903: /*
904: * We do have to handle multi-line responses which may come in a
905: * single packet or not. We therefore have to use BIO_gets() which
906: * does need a buffering BIO. So during the initial chitchat we do
907: * push a buffering BIO into the chain that is removed again later on
908: * to not disturb the rest of the s_client operation.
909: */
910: if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
911: int foundit = 0;
912: BIO *fbio = BIO_new(BIO_f_buffer());
913: BIO_push(fbio, sbio);
914: /* wait for multi-line response to end from SMTP */
915: do {
916: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
917: }
918: while (mbuf_len > 3 && mbuf[3] == '-');
919: /* STARTTLS command requires EHLO... */
920: BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
921: starttls_proto == PROTO_SMTP ? 'E' : 'L');
922: (void) BIO_flush(fbio);
923: /* wait for multi-line response to end EHLO SMTP response */
924: do {
925: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
926: if (strstr(mbuf, "STARTTLS"))
927: foundit = 1;
928: }
929: while (mbuf_len > 3 && mbuf[3] == '-');
930: (void) BIO_flush(fbio);
931: BIO_pop(fbio);
932: BIO_free(fbio);
933: if (!foundit)
934: BIO_printf(bio_err,
935: "didn't found starttls in server response,"
936: " try anyway...\n");
937: BIO_printf(sbio, "STARTTLS\r\n");
938: BIO_read(sbio, sbuf, BUFSIZZ);
939: } else if (starttls_proto == PROTO_POP3) {
940: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
941: if (mbuf_len == -1) {
942: BIO_printf(bio_err, "BIO_read failed\n");
943: goto end;
944: }
945: BIO_printf(sbio, "STLS\r\n");
946: BIO_read(sbio, sbuf, BUFSIZZ);
947: } else if (starttls_proto == PROTO_IMAP) {
948: int foundit = 0;
949: BIO *fbio = BIO_new(BIO_f_buffer());
950: BIO_push(fbio, sbio);
951: BIO_gets(fbio, mbuf, BUFSIZZ);
952: /* STARTTLS command requires CAPABILITY... */
953: BIO_printf(fbio, ". CAPABILITY\r\n");
954: (void) BIO_flush(fbio);
955: /* wait for multi-line CAPABILITY response */
956: do {
957: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
958: if (strstr(mbuf, "STARTTLS"))
959: foundit = 1;
960: }
961: while (mbuf_len > 3 && mbuf[0] != '.');
962: (void) BIO_flush(fbio);
963: BIO_pop(fbio);
964: BIO_free(fbio);
965: if (!foundit)
966: BIO_printf(bio_err,
967: "didn't found STARTTLS in server response,"
968: " try anyway...\n");
969: BIO_printf(sbio, ". STARTTLS\r\n");
970: BIO_read(sbio, sbuf, BUFSIZZ);
971: } else if (starttls_proto == PROTO_FTP) {
972: BIO *fbio = BIO_new(BIO_f_buffer());
973: BIO_push(fbio, sbio);
974: /* wait for multi-line response to end from FTP */
975: do {
976: mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
977: }
978: while (mbuf_len > 3 && mbuf[3] == '-');
979: (void) BIO_flush(fbio);
980: BIO_pop(fbio);
981: BIO_free(fbio);
982: BIO_printf(sbio, "AUTH TLS\r\n");
983: BIO_read(sbio, sbuf, BUFSIZZ);
1.12 bluhm 984: } else if (starttls_proto == PROTO_XMPP) {
1.1 jsing 985: int seen = 0;
986: BIO_printf(sbio, "<stream:stream "
987: "xmlns:stream='http://etherx.jabber.org/streams' "
988: "xmlns='jabber:client' to='%s' version='1.0'>", host);
989: seen = BIO_read(sbio, mbuf, BUFSIZZ);
990: mbuf[seen] = 0;
991: while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) {
992: if (strstr(mbuf, "/stream:features>"))
993: goto shut;
994: seen = BIO_read(sbio, mbuf, BUFSIZZ);
995: mbuf[seen] = 0;
996: }
997: BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
998: seen = BIO_read(sbio, sbuf, BUFSIZZ);
999: sbuf[seen] = 0;
1000: if (!strstr(sbuf, "<proceed"))
1001: goto shut;
1002: mbuf[0] = 0;
1.12 bluhm 1003: } else if (proxy != NULL) {
1004: BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect);
1005: mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
1006: if (mbuf_len == -1) {
1007: BIO_printf(bio_err, "BIO_read failed\n");
1008: goto end;
1009: }
1.1 jsing 1010: }
1011: for (;;) {
1.9 deraadt 1012: struct pollfd pfd[3]; /* stdin, stdout, socket */
1013: int ptimeout = -1;
1.1 jsing 1014:
1015: if ((SSL_version(con) == DTLS1_VERSION) &&
1016: DTLSv1_get_timeout(con, &timeout))
1.9 deraadt 1017: ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
1.1 jsing 1018:
1019: if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
1020: in_init = 1;
1021: tty_on = 0;
1022: } else {
1023: tty_on = 1;
1024: if (in_init) {
1025: in_init = 0;
1026: if (sess_out) {
1027: BIO *stmp = BIO_new_file(sess_out, "w");
1028: if (stmp) {
1029: PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1030: BIO_free(stmp);
1031: } else
1032: BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1033: }
1034: print_stuff(bio_c_out, con, full_log);
1035: if (full_log > 0)
1036: full_log--;
1037:
1038: if (starttls_proto) {
1039: BIO_write(bio_err, mbuf, mbuf_len);
1040: /* We don't need to know any more */
1041: starttls_proto = PROTO_OFF;
1042: }
1043: if (reconnect) {
1044: reconnect--;
1045: BIO_printf(bio_c_out, "drop connection and then reconnect\n");
1046: SSL_shutdown(con);
1047: SSL_set_connect_state(con);
1048: shutdown(SSL_get_fd(con), SHUT_RD);
1049: close(SSL_get_fd(con));
1050: goto re_start;
1051: }
1052: }
1053: }
1054:
1055: ssl_pending = read_ssl && SSL_pending(con);
1056:
1.9 deraadt 1057: pfd[0].fd = -1;
1058: pfd[1].fd = -1;
1.1 jsing 1059: if (!ssl_pending) {
1060: if (tty_on) {
1.9 deraadt 1061: if (read_tty) {
1062: pfd[0].fd = fileno(stdin);
1063: pfd[0].events = POLLIN;
1064: }
1065: if (write_tty) {
1066: pfd[1].fd = fileno(stdout);
1067: pfd[1].events = POLLOUT;
1068: }
1.1 jsing 1069: }
1.9 deraadt 1070:
1071: pfd[2].fd = SSL_get_fd(con);
1072: pfd[2].events = 0;
1.1 jsing 1073: if (read_ssl)
1.9 deraadt 1074: pfd[2].events |= POLLIN;
1.1 jsing 1075: if (write_ssl)
1.9 deraadt 1076: pfd[2].events |= POLLOUT;
1077:
1.1 jsing 1078: /* printf("mode tty(%d %d%d) ssl(%d%d)\n",
1079: tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1080:
1.9 deraadt 1081: i = poll(pfd, 3, ptimeout);
1.1 jsing 1082: if (i < 0) {
1083: BIO_printf(bio_err, "bad select %d\n",
1084: errno);
1085: goto shut;
1086: /* goto end; */
1087: }
1088: }
1089: if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
1090: BIO_printf(bio_err, "TIMEOUT occured\n");
1091: }
1.9 deraadt 1092: if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1093: if (pfd[2].revents & (POLLERR|POLLNVAL)) {
1094: BIO_printf(bio_err, "poll error");
1095: goto shut;
1096: }
1.1 jsing 1097: k = SSL_write(con, &(cbuf[cbuf_off]),
1098: (unsigned int) cbuf_len);
1099: switch (SSL_get_error(con, k)) {
1100: case SSL_ERROR_NONE:
1101: cbuf_off += k;
1102: cbuf_len -= k;
1103: if (k <= 0)
1104: goto end;
1105: /* we have done a write(con,NULL,0); */
1106: if (cbuf_len <= 0) {
1107: read_tty = 1;
1108: write_ssl = 0;
1109: } else { /* if (cbuf_len > 0) */
1110: read_tty = 0;
1111: write_ssl = 1;
1112: }
1113: break;
1114: case SSL_ERROR_WANT_WRITE:
1115: BIO_printf(bio_c_out, "write W BLOCK\n");
1116: write_ssl = 1;
1117: read_tty = 0;
1118: break;
1119: case SSL_ERROR_WANT_READ:
1120: BIO_printf(bio_c_out, "write R BLOCK\n");
1121: write_tty = 0;
1122: read_ssl = 1;
1123: write_ssl = 0;
1124: break;
1125: case SSL_ERROR_WANT_X509_LOOKUP:
1126: BIO_printf(bio_c_out, "write X BLOCK\n");
1127: break;
1128: case SSL_ERROR_ZERO_RETURN:
1129: if (cbuf_len != 0) {
1130: BIO_printf(bio_c_out, "shutdown\n");
1131: ret = 0;
1132: goto shut;
1133: } else {
1134: read_tty = 1;
1135: write_ssl = 0;
1136: break;
1137: }
1138:
1139: case SSL_ERROR_SYSCALL:
1140: if ((k != 0) || (cbuf_len != 0)) {
1141: BIO_printf(bio_err, "write:errno=%d\n",
1142: errno);
1143: goto shut;
1144: } else {
1145: read_tty = 1;
1146: write_ssl = 0;
1147: }
1148: break;
1149: case SSL_ERROR_SSL:
1150: ERR_print_errors(bio_err);
1151: goto shut;
1152: }
1.9 deraadt 1153: } else if (!ssl_pending &&
1154: (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) {
1155: if (pfd[1].revents & (POLLERR|POLLNVAL)) {
1156: BIO_printf(bio_err, "poll error");
1157: goto shut;
1158: }
1.1 jsing 1159: i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
1160:
1161: if (i <= 0) {
1162: BIO_printf(bio_c_out, "DONE\n");
1163: ret = 0;
1164: goto shut;
1165: /* goto end; */
1166: }
1167: sbuf_len -= i;
1168: sbuf_off += i;
1169: if (sbuf_len <= 0) {
1170: read_ssl = 1;
1171: write_tty = 0;
1172: }
1.9 deraadt 1173: } else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) {
1.1 jsing 1174: #ifdef RENEG
1175: {
1176: static int iiii;
1177: if (++iiii == 52) {
1178: SSL_renegotiate(con);
1179: iiii = 0;
1180: }
1181: }
1182: #endif
1183: k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1184:
1185: switch (SSL_get_error(con, k)) {
1186: case SSL_ERROR_NONE:
1187: if (k <= 0)
1188: goto end;
1189: sbuf_off = 0;
1190: sbuf_len = k;
1191:
1192: read_ssl = 0;
1193: write_tty = 1;
1194: break;
1195: case SSL_ERROR_WANT_WRITE:
1196: BIO_printf(bio_c_out, "read W BLOCK\n");
1197: write_ssl = 1;
1198: read_tty = 0;
1199: break;
1200: case SSL_ERROR_WANT_READ:
1201: BIO_printf(bio_c_out, "read R BLOCK\n");
1202: write_tty = 0;
1203: read_ssl = 1;
1204: if ((read_tty == 0) && (write_ssl == 0))
1205: write_ssl = 1;
1206: break;
1207: case SSL_ERROR_WANT_X509_LOOKUP:
1208: BIO_printf(bio_c_out, "read X BLOCK\n");
1209: break;
1210: case SSL_ERROR_SYSCALL:
1211: ret = errno;
1212: BIO_printf(bio_err, "read:errno=%d\n", ret);
1213: goto shut;
1214: case SSL_ERROR_ZERO_RETURN:
1215: BIO_printf(bio_c_out, "closed\n");
1216: ret = 0;
1217: goto shut;
1218: case SSL_ERROR_SSL:
1219: ERR_print_errors(bio_err);
1220: goto shut;
1221: /* break; */
1222: }
1.9 deraadt 1223: } else if (pfd[0].revents) {
1224: if (pfd[0].revents & (POLLERR|POLLNVAL)) {
1225: BIO_printf(bio_err, "poll error");
1226: goto shut;
1227: }
1.1 jsing 1228: if (crlf) {
1229: int j, lf_num;
1230:
1231: i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
1232: lf_num = 0;
1233: /* both loops are skipped when i <= 0 */
1234: for (j = 0; j < i; j++)
1235: if (cbuf[j] == '\n')
1236: lf_num++;
1237: for (j = i - 1; j >= 0; j--) {
1238: cbuf[j + lf_num] = cbuf[j];
1239: if (cbuf[j] == '\n') {
1240: lf_num--;
1241: i++;
1242: cbuf[j + lf_num] = '\r';
1243: }
1244: }
1245: assert(lf_num == 0);
1246: } else
1247: i = read(fileno(stdin), cbuf, BUFSIZZ);
1248:
1249: if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
1250: BIO_printf(bio_err, "DONE\n");
1251: ret = 0;
1252: goto shut;
1253: }
1254: if ((!c_ign_eof) && (cbuf[0] == 'R')) {
1255: BIO_printf(bio_err, "RENEGOTIATING\n");
1256: SSL_renegotiate(con);
1257: cbuf_len = 0;
1258: } else {
1259: cbuf_len = i;
1260: cbuf_off = 0;
1261: }
1262:
1263: write_ssl = 1;
1264: read_tty = 0;
1265: }
1266: }
1267:
1268: ret = 0;
1269: shut:
1270: if (in_init)
1271: print_stuff(bio_c_out, con, full_log);
1272: SSL_shutdown(con);
1273: shutdown(SSL_get_fd(con), SHUT_RD);
1274: close(SSL_get_fd(con));
1275: end:
1276: if (con != NULL) {
1277: if (prexit != 0)
1278: print_stuff(bio_c_out, con, 1);
1279: SSL_free(con);
1280: }
1281: free(next_proto.data);
1282: if (ctx != NULL)
1283: SSL_CTX_free(ctx);
1284: if (cert)
1285: X509_free(cert);
1286: if (key)
1287: EVP_PKEY_free(key);
1288: free(pass);
1289: if (vpm)
1290: X509_VERIFY_PARAM_free(vpm);
1291: if (cbuf != NULL) {
1292: OPENSSL_cleanse(cbuf, BUFSIZZ);
1293: free(cbuf);
1294: }
1295: if (sbuf != NULL) {
1296: OPENSSL_cleanse(sbuf, BUFSIZZ);
1297: free(sbuf);
1298: }
1299: if (mbuf != NULL) {
1300: OPENSSL_cleanse(mbuf, BUFSIZZ);
1301: free(mbuf);
1302: }
1303: if (bio_c_out != NULL) {
1304: BIO_free(bio_c_out);
1305: bio_c_out = NULL;
1306: }
1307:
1308: return (ret);
1309: }
1310:
1311:
1312: static void
1313: print_stuff(BIO * bio, SSL * s, int full)
1314: {
1315: X509 *peer = NULL;
1316: char *p;
1317: static const char *space = " ";
1318: char buf[BUFSIZ];
1319: STACK_OF(X509) * sk;
1320: STACK_OF(X509_NAME) * sk2;
1321: const SSL_CIPHER *c;
1322: X509_NAME *xn;
1323: int j, i;
1324: unsigned char *exportedkeymat;
1325:
1326: if (full) {
1327: int got_a_chain = 0;
1328:
1329: sk = SSL_get_peer_cert_chain(s);
1330: if (sk != NULL) {
1331: got_a_chain = 1; /* we don't have it for SSL2
1332: * (yet) */
1333:
1334: BIO_printf(bio, "---\nCertificate chain\n");
1335: for (i = 0; i < sk_X509_num(sk); i++) {
1336: X509_NAME_oneline(X509_get_subject_name(
1337: sk_X509_value(sk, i)), buf, sizeof buf);
1338: BIO_printf(bio, "%2d s:%s\n", i, buf);
1339: X509_NAME_oneline(X509_get_issuer_name(
1340: sk_X509_value(sk, i)), buf, sizeof buf);
1341: BIO_printf(bio, " i:%s\n", buf);
1342: if (c_showcerts)
1343: PEM_write_bio_X509(bio, sk_X509_value(sk, i));
1344: }
1345: }
1346: BIO_printf(bio, "---\n");
1347: peer = SSL_get_peer_certificate(s);
1348: if (peer != NULL) {
1349: BIO_printf(bio, "Server certificate\n");
1350: if (!(c_showcerts && got_a_chain)) /* Redundant if we
1351: * showed the whole
1352: * chain */
1353: PEM_write_bio_X509(bio, peer);
1354: X509_NAME_oneline(X509_get_subject_name(peer),
1355: buf, sizeof buf);
1356: BIO_printf(bio, "subject=%s\n", buf);
1357: X509_NAME_oneline(X509_get_issuer_name(peer),
1358: buf, sizeof buf);
1359: BIO_printf(bio, "issuer=%s\n", buf);
1360: } else
1361: BIO_printf(bio, "no peer certificate available\n");
1362:
1363: sk2 = SSL_get_client_CA_list(s);
1364: if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
1365: BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
1366: for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
1367: xn = sk_X509_NAME_value(sk2, i);
1368: X509_NAME_oneline(xn, buf, sizeof(buf));
1369: BIO_write(bio, buf, strlen(buf));
1370: BIO_write(bio, "\n", 1);
1371: }
1372: } else {
1373: BIO_printf(bio, "---\nNo client certificate CA names sent\n");
1374: }
1375: p = SSL_get_shared_ciphers(s, buf, sizeof buf);
1376: if (p != NULL) {
1377: /*
1378: * This works only for SSL 2. In later protocol
1379: * versions, the client does not know what other
1380: * ciphers (in addition to the one to be used in the
1381: * current connection) the server supports.
1382: */
1383:
1384: BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n");
1385: j = i = 0;
1386: while (*p) {
1387: if (*p == ':') {
1388: BIO_write(bio, space, 15 - j % 25);
1389: i++;
1390: j = 0;
1391: BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
1392: } else {
1393: BIO_write(bio, p, 1);
1394: j++;
1395: }
1396: p++;
1397: }
1398: BIO_write(bio, "\n", 1);
1399: }
1400: BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1401: BIO_number_read(SSL_get_rbio(s)),
1402: BIO_number_written(SSL_get_wbio(s)));
1403: }
1404: BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
1405: c = SSL_get_current_cipher(s);
1406: BIO_printf(bio, "%s, Cipher is %s\n",
1407: SSL_CIPHER_get_version(c),
1408: SSL_CIPHER_get_name(c));
1409: if (peer != NULL) {
1410: EVP_PKEY *pktmp;
1411: pktmp = X509_get_pubkey(peer);
1412: BIO_printf(bio, "Server public key is %d bit\n",
1413: EVP_PKEY_bits(pktmp));
1414: EVP_PKEY_free(pktmp);
1415: }
1416: BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1417: SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1418:
1419: /* Compression is not supported and will always be none. */
1420: BIO_printf(bio, "Compression: NONE\n");
1421: BIO_printf(bio, "Expansion: NONE\n");
1422:
1423: #ifdef SSL_DEBUG
1424: {
1425: /* Print out local port of connection: useful for debugging */
1426: int sock;
1427: struct sockaddr_in ladd;
1428: socklen_t ladd_size = sizeof(ladd);
1429: sock = SSL_get_fd(s);
1430: getsockname(sock, (struct sockaddr *) & ladd, &ladd_size);
1431: BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1432: }
1433: #endif
1434:
1435: if (next_proto.status != -1) {
1436: const unsigned char *proto;
1437: unsigned int proto_len;
1438: SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
1439: BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
1440: BIO_write(bio, proto, proto_len);
1441: BIO_write(bio, "\n", 1);
1442: }
1.10 jsing 1443: {
1444: const unsigned char *proto;
1445: unsigned int proto_len;
1446: SSL_get0_alpn_selected(s, &proto, &proto_len);
1447: if (proto_len > 0) {
1448: BIO_printf(bio, "ALPN protocol: ");
1449: BIO_write(bio, proto, proto_len);
1450: BIO_write(bio, "\n", 1);
1451: } else
1452: BIO_printf(bio, "No ALPN negotiated\n");
1453: }
1.1 jsing 1454:
1455: #ifndef OPENSSL_NO_SRTP
1456: {
1457: SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s);
1458:
1459: if (srtp_profile)
1460: BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
1461: srtp_profile->name);
1462: }
1463: #endif
1464:
1465: SSL_SESSION_print(bio, SSL_get_session(s));
1466: if (keymatexportlabel != NULL) {
1467: BIO_printf(bio, "Keying material exporter:\n");
1468: BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
1469: BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
1470: exportedkeymat = malloc(keymatexportlen);
1471: if (exportedkeymat != NULL) {
1472: if (!SSL_export_keying_material(s, exportedkeymat,
1473: keymatexportlen,
1474: keymatexportlabel,
1475: strlen(keymatexportlabel),
1476: NULL, 0, 0)) {
1477: BIO_printf(bio, " Error\n");
1478: } else {
1479: BIO_printf(bio, " Keying material: ");
1480: for (i = 0; i < keymatexportlen; i++)
1481: BIO_printf(bio, "%02X",
1482: exportedkeymat[i]);
1483: BIO_printf(bio, "\n");
1484: }
1485: free(exportedkeymat);
1486: }
1487: }
1488: BIO_printf(bio, "---\n");
1489: if (peer != NULL)
1490: X509_free(peer);
1491: /* flush, or debugging output gets mixed with http response */
1492: (void) BIO_flush(bio);
1493: }
1494:
1495:
1496: static int
1497: ocsp_resp_cb(SSL * s, void *arg)
1498: {
1499: const unsigned char *p;
1500: int len;
1501: OCSP_RESPONSE *rsp;
1502: len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1503: BIO_puts(arg, "OCSP response: ");
1504: if (!p) {
1505: BIO_puts(arg, "no response sent\n");
1506: return 1;
1507: }
1508: rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1509: if (!rsp) {
1510: BIO_puts(arg, "response parse error\n");
1511: BIO_dump_indent(arg, (char *) p, len, 4);
1512: return 0;
1513: }
1514: BIO_puts(arg, "\n======================================\n");
1515: OCSP_RESPONSE_print(arg, rsp, 0);
1516: BIO_puts(arg, "======================================\n");
1517: OCSP_RESPONSE_free(rsp);
1518: return 1;
1519: }
1520: