Annotation of src/usr.bin/openssl/openssl.c, Revision 1.2
1.2 ! jsing 1: /* $OpenBSD: openssl.c,v 1.1 2014/08/26 17:47:25 jsing Exp $ */
1.1 jsing 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young (eay@cryptsoft.com).
7: * The implementation was written so as to conform with Netscapes SSL.
8: *
9: * This library is free for commercial and non-commercial use as long as
10: * the following conditions are aheared to. The following conditions
11: * apply to all code found in this distribution, be it the RC4, RSA,
12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13: * included with this distribution is covered by the same copyright terms
14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15: *
16: * Copyright remains Eric Young's, and as such any Copyright notices in
17: * the code are not to be removed.
18: * If this package is used in a product, Eric Young should be given attribution
19: * as the author of the parts of the library used.
20: * This can be in the form of a textual message at program startup or
21: * in documentation (online or textual) provided with the package.
22: *
23: * Redistribution and use in source and binary forms, with or without
24: * modification, are permitted provided that the following conditions
25: * are met:
26: * 1. Redistributions of source code must retain the copyright
27: * notice, this list of conditions and the following disclaimer.
28: * 2. Redistributions in binary form must reproduce the above copyright
29: * notice, this list of conditions and the following disclaimer in the
30: * documentation and/or other materials provided with the distribution.
31: * 3. All advertising materials mentioning features or use of this software
32: * must display the following acknowledgement:
33: * "This product includes cryptographic software written by
34: * Eric Young (eay@cryptsoft.com)"
35: * The word 'cryptographic' can be left out if the rouines from the library
36: * being used are not cryptographic related :-).
37: * 4. If you include any Windows specific code (or a derivative thereof) from
38: * the apps directory (application code) you must include an acknowledgement:
39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40: *
41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51: * SUCH DAMAGE.
52: *
53: * The licence and distribution terms for any publically available version or
54: * derivative of this code cannot be changed. i.e. this code cannot simply be
55: * copied and put under another distribution licence
56: * [including the GNU Public Licence.]
57: */
58: /* ====================================================================
59: * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60: *
61: * Redistribution and use in source and binary forms, with or without
62: * modification, are permitted provided that the following conditions
63: * are met:
64: *
65: * 1. Redistributions of source code must retain the above copyright
66: * notice, this list of conditions and the following disclaimer.
67: *
68: * 2. Redistributions in binary form must reproduce the above copyright
69: * notice, this list of conditions and the following disclaimer in
70: * the documentation and/or other materials provided with the
71: * distribution.
72: *
73: * 3. All advertising materials mentioning features or use of this
74: * software must display the following acknowledgment:
75: * "This product includes software developed by the OpenSSL Project
76: * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77: *
78: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79: * endorse or promote products derived from this software without
80: * prior written permission. For written permission, please contact
81: * openssl-core@openssl.org.
82: *
83: * 5. Products derived from this software may not be called "OpenSSL"
84: * nor may "OpenSSL" appear in their names without prior written
85: * permission of the OpenSSL Project.
86: *
87: * 6. Redistributions of any form whatsoever must retain the following
88: * acknowledgment:
89: * "This product includes software developed by the OpenSSL Project
90: * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91: *
92: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103: * OF THE POSSIBILITY OF SUCH DAMAGE.
104: * ====================================================================
105: *
106: * This product includes cryptographic software written by Eric Young
107: * (eay@cryptsoft.com). This product includes software written by Tim
108: * Hudson (tjh@cryptsoft.com).
109: *
110: */
111:
112: #include <err.h>
113: #include <signal.h>
114: #include <stdio.h>
115: #include <string.h>
116: #include <stdlib.h>
117:
118: #include "apps.h"
119:
120: #include <openssl/bio.h>
121: #include <openssl/conf.h>
122: #include <openssl/crypto.h>
123: #include <openssl/err.h>
124: #include <openssl/lhash.h>
125: #include <openssl/pem.h>
126: #include <openssl/ssl.h>
127: #include <openssl/x509.h>
128:
129: #ifndef OPENSSL_NO_ENGINE
130: #include <openssl/engine.h>
131: #endif
132:
133: #include "progs.h"
134: #include "s_apps.h"
135:
136: static void openssl_startup(void);
137: static void openssl_shutdown(void);
138:
139: /* The LHASH callbacks ("hash" & "cmp") have been replaced by functions with the
140: * base prototypes (we cast each variable inside the function to the required
141: * type of "FUNCTION*"). This removes the necessity for macro-generated wrapper
142: * functions. */
143:
144: static LHASH_OF(FUNCTION) *prog_init(void);
145: static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
146: static void list_pkey(BIO * out);
147: static void list_cipher(BIO * out);
148: static void list_md(BIO * out);
149: char *default_config_file = NULL;
150:
151: CONF *config = NULL;
152: BIO *bio_err = NULL;
153:
154: static void
155: lock_dbg_cb(int mode, int type, const char *file, int line)
156: {
157: static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
158: const char *errstr = NULL;
159: int rw;
160:
161: rw = mode & (CRYPTO_READ | CRYPTO_WRITE);
162: if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE))) {
163: errstr = "invalid mode";
164: goto err;
165: }
166: if (type < 0 || type >= CRYPTO_NUM_LOCKS) {
167: errstr = "type out of bounds";
168: goto err;
169: }
170: if (mode & CRYPTO_LOCK) {
171: if (modes[type]) {
172: errstr = "already locked";
173: /*
174: * must not happen in a single-threaded program
175: * (would deadlock)
176: */
177: goto err;
178: }
179: modes[type] = rw;
180: } else if (mode & CRYPTO_UNLOCK) {
181: if (!modes[type]) {
182: errstr = "not locked";
183: goto err;
184: }
185: if (modes[type] != rw) {
186: errstr = (rw == CRYPTO_READ) ?
187: "CRYPTO_r_unlock on write lock" :
188: "CRYPTO_w_unlock on read lock";
189: }
190: modes[type] = 0;
191: } else {
192: errstr = "invalid mode";
193: goto err;
194: }
195:
196: err:
197: if (errstr) {
198: /* we cannot use bio_err here */
199: fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
200: errstr, mode, type, file, line);
201: }
202: }
203:
204: static void
205: openssl_startup(void)
206: {
207: signal(SIGPIPE, SIG_IGN);
208:
209: CRYPTO_malloc_init();
210: OpenSSL_add_all_algorithms();
211: SSL_library_init();
212: SSL_load_error_strings();
213:
214: #ifndef OPENSSL_NO_ENGINE
215: ENGINE_load_builtin_engines();
216: #endif
217:
218: setup_ui_method();
219: }
220:
221: static void
222: openssl_shutdown(void)
223: {
224: CONF_modules_unload(1);
225: destroy_ui_method();
226: OBJ_cleanup();
227: EVP_cleanup();
228:
229: #ifndef OPENSSL_NO_ENGINE
230: ENGINE_cleanup();
231: #endif
232:
233: CRYPTO_cleanup_all_ex_data();
234: ERR_remove_thread_state(NULL);
235: ERR_free_strings();
236: }
237:
238: int
239: main(int argc, char **argv)
240: {
241: ARGS arg;
242: #define PROG_NAME_SIZE 39
243: char pname[PROG_NAME_SIZE + 1];
244: FUNCTION f, *fp;
245: const char *prompt;
246: char buf[1024];
247: char *to_free = NULL;
248: int n, i, ret = 0;
249: char *p;
250: LHASH_OF(FUNCTION) * prog = NULL;
251: long errline;
252:
253: arg.data = NULL;
254: arg.count = 0;
255:
256: bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
257: if (bio_err == NULL) {
258: fprintf(stderr, "openssl: failed to initialise bio_err\n");
259: exit(1);
260: }
261:
262: CRYPTO_set_locking_callback(lock_dbg_cb);
263:
264: openssl_startup();
265:
266: /* Lets load up our environment a little */
267: p = getenv("OPENSSL_CONF");
268: if (p == NULL)
269: p = getenv("SSLEAY_CONF");
270: if (p == NULL) {
271: p = to_free = make_config_name();
272: if (p == NULL) {
273: BIO_printf(bio_err, "error making config file name\n");
274: goto end;
275: }
276: }
277:
278: default_config_file = p;
279:
280: config = NCONF_new(NULL);
281: i = NCONF_load(config, p, &errline);
282: if (i == 0) {
283: if (ERR_GET_REASON(ERR_peek_last_error()) ==
284: CONF_R_NO_SUCH_FILE) {
285: BIO_printf(bio_err,
286: "WARNING: can't open config file: %s\n", p);
287: ERR_clear_error();
288: NCONF_free(config);
289: config = NULL;
290: } else {
291: ERR_print_errors(bio_err);
292: NCONF_free(config);
293: exit(1);
294: }
295: }
296:
297: if (!load_config(bio_err, NULL)) {
298: BIO_printf(bio_err, "failed to load configuration\n");
299: goto end;
300: }
301:
302: prog = prog_init();
303:
304: /* first check the program name */
305: program_name(argv[0], pname, sizeof pname);
306:
307: f.name = pname;
308: fp = lh_FUNCTION_retrieve(prog, &f);
309: if (fp != NULL) {
310: argv[0] = pname;
311: ret = fp->func(argc, argv);
312: goto end;
313: }
314: /*
315: * ok, now check that there are not arguments, if there are, run with
316: * them, shifting the ssleay off the front
317: */
318: if (argc != 1) {
319: argc--;
320: argv++;
321: ret = do_cmd(prog, argc, argv);
322: if (ret < 0)
323: ret = 0;
324: goto end;
325: }
326: /* ok, lets enter the old 'OpenSSL>' mode */
327:
328: for (;;) {
329: ret = 0;
330: p = buf;
331: n = sizeof buf;
332: i = 0;
333: for (;;) {
334: p[0] = '\0';
335: if (i++)
336: prompt = ">";
337: else
338: prompt = "OpenSSL> ";
339: fputs(prompt, stdout);
340: fflush(stdout);
341: if (!fgets(p, n, stdin))
342: goto end;
343: if (p[0] == '\0')
344: goto end;
345: i = strlen(p);
346: if (i <= 1)
347: break;
348: if (p[i - 2] != '\\')
349: break;
350: i -= 2;
351: p += i;
352: n -= i;
353: }
354: if (!chopup_args(&arg, buf, &argc, &argv))
355: break;
356:
357: ret = do_cmd(prog, argc, argv);
358: if (ret < 0) {
359: ret = 0;
360: goto end;
361: }
362: if (ret != 0)
363: BIO_printf(bio_err, "error in %s\n", argv[0]);
364: (void) BIO_flush(bio_err);
365: }
366: BIO_printf(bio_err, "bad exit\n");
367: ret = 1;
368:
369: end:
370: free(to_free);
371:
372: if (config != NULL) {
373: NCONF_free(config);
374: config = NULL;
375: }
376: if (prog != NULL)
377: lh_FUNCTION_free(prog);
378: free(arg.data);
379:
380: openssl_shutdown();
381:
382: if (bio_err != NULL) {
383: BIO_free(bio_err);
384: bio_err = NULL;
385: }
386: return (ret);
387: }
388:
389: #define LIST_STANDARD_COMMANDS "list-standard-commands"
390: #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
391: #define LIST_MESSAGE_DIGEST_ALGORITHMS "list-message-digest-algorithms"
392: #define LIST_CIPHER_COMMANDS "list-cipher-commands"
393: #define LIST_CIPHER_ALGORITHMS "list-cipher-algorithms"
394: #define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms"
395:
396:
397: static int
398: do_cmd(LHASH_OF(FUNCTION) * prog, int argc, char *argv[])
399: {
400: FUNCTION f, *fp;
401: int i, ret = 1, tp, nl;
402:
403: if ((argc <= 0) || (argv[0] == NULL)) {
404: ret = 0;
405: goto end;
406: }
407: f.name = argv[0];
408: fp = lh_FUNCTION_retrieve(prog, &f);
409: if (fp == NULL) {
410: if (EVP_get_digestbyname(argv[0])) {
411: f.type = FUNC_TYPE_MD;
412: f.func = dgst_main;
413: fp = &f;
414: } else if (EVP_get_cipherbyname(argv[0])) {
415: f.type = FUNC_TYPE_CIPHER;
416: f.func = enc_main;
417: fp = &f;
418: }
419: }
420: if (fp != NULL) {
421: ret = fp->func(argc, argv);
422: } else if ((strncmp(argv[0], "no-", 3)) == 0) {
423: BIO *bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
424: f.name = argv[0] + 3;
425: ret = (lh_FUNCTION_retrieve(prog, &f) != NULL);
426: if (!ret)
427: BIO_printf(bio_stdout, "%s\n", argv[0]);
428: else
429: BIO_printf(bio_stdout, "%s\n", argv[0] + 3);
430: BIO_free_all(bio_stdout);
431: goto end;
432: } else if ((strcmp(argv[0], "quit") == 0) ||
433: (strcmp(argv[0], "q") == 0) ||
434: (strcmp(argv[0], "exit") == 0) ||
435: (strcmp(argv[0], "bye") == 0)) {
436: ret = -1;
437: goto end;
438: } else if ((strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) ||
439: (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
440: (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) ||
441: (strcmp(argv[0], LIST_CIPHER_COMMANDS) == 0) ||
442: (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) ||
443: (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)) {
444: int list_type;
445: BIO *bio_stdout;
446:
447: if (strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0)
448: list_type = FUNC_TYPE_GENERAL;
449: else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0)
450: list_type = FUNC_TYPE_MD;
451: else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0)
452: list_type = FUNC_TYPE_MD_ALG;
453: else if (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)
454: list_type = FUNC_TYPE_PKEY;
455: else if (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0)
456: list_type = FUNC_TYPE_CIPHER_ALG;
457: else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
458: list_type = FUNC_TYPE_CIPHER;
459: bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
460:
461: if (list_type == FUNC_TYPE_PKEY)
462: list_pkey(bio_stdout);
463: if (list_type == FUNC_TYPE_MD_ALG)
464: list_md(bio_stdout);
465: if (list_type == FUNC_TYPE_CIPHER_ALG)
466: list_cipher(bio_stdout);
467: else {
468: for (fp = functions; fp->name != NULL; fp++)
469: if (fp->type == list_type)
470: BIO_printf(bio_stdout, "%s\n",
471: fp->name);
472: }
473: BIO_free_all(bio_stdout);
474: ret = 0;
475: goto end;
476: } else {
477: BIO_printf(bio_err,
478: "openssl:Error: '%s' is an invalid command.\n",
479: argv[0]);
480: BIO_printf(bio_err, "\nStandard commands");
481: i = 0;
482: tp = 0;
483: for (fp = functions; fp->name != NULL; fp++) {
484: nl = 0;
485: #ifdef OPENSSL_NO_CAMELLIA
486: if (((i++) % 5) == 0)
487: #else
488: if (((i++) % 4) == 0)
489: #endif
490: {
491: BIO_printf(bio_err, "\n");
492: nl = 1;
493: }
494: if (fp->type != tp) {
495: tp = fp->type;
496: if (!nl)
497: BIO_printf(bio_err, "\n");
498: if (tp == FUNC_TYPE_MD) {
499: i = 1;
500: BIO_printf(bio_err,
501: "\nMessage Digest commands (see the `dgst' command for more details)\n");
502: } else if (tp == FUNC_TYPE_CIPHER) {
503: i = 1;
504: BIO_printf(bio_err, "\nCipher commands (see the `enc' command for more details)\n");
505: }
506: }
507: #ifdef OPENSSL_NO_CAMELLIA
508: BIO_printf(bio_err, "%-15s", fp->name);
509: #else
510: BIO_printf(bio_err, "%-18s", fp->name);
511: #endif
512: }
513: BIO_printf(bio_err, "\n\n");
514: ret = 0;
515: }
516: end:
517: return (ret);
518: }
519:
520: static int
521: SortFnByName(const void *_f1, const void *_f2)
522: {
523: const FUNCTION *f1 = _f1;
524: const FUNCTION *f2 = _f2;
525:
526: if (f1->type != f2->type)
527: return f1->type - f2->type;
528: return strcmp(f1->name, f2->name);
529: }
530:
531: static void
532: list_pkey(BIO * out)
533: {
534: int i;
535:
536: for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
537: const EVP_PKEY_ASN1_METHOD *ameth;
538: int pkey_id, pkey_base_id, pkey_flags;
539: const char *pinfo, *pem_str;
540: ameth = EVP_PKEY_asn1_get0(i);
541: EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
542: &pinfo, &pem_str, ameth);
543: if (pkey_flags & ASN1_PKEY_ALIAS) {
544: BIO_printf(out, "Name: %s\n",
545: OBJ_nid2ln(pkey_id));
546: BIO_printf(out, "\tType: Alias to %s\n",
547: OBJ_nid2ln(pkey_base_id));
548: } else {
549: BIO_printf(out, "Name: %s\n", pinfo);
550: BIO_printf(out, "\tType: %s Algorithm\n",
551: pkey_flags & ASN1_PKEY_DYNAMIC ?
552: "External" : "Builtin");
553: BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
554: if (pem_str == NULL)
555: pem_str = "(none)";
556: BIO_printf(out, "\tPEM string: %s\n", pem_str);
557: }
558:
559: }
560: }
561:
562: static void
563: list_cipher_fn(const EVP_CIPHER * c, const char *from, const char *to,
564: void *arg)
565: {
566: if (c)
567: BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
568: else {
569: if (!from)
570: from = "<undefined>";
571: if (!to)
572: to = "<undefined>";
573: BIO_printf(arg, "%s => %s\n", from, to);
574: }
575: }
576:
577: static void
578: list_cipher(BIO * out)
579: {
580: EVP_CIPHER_do_all_sorted(list_cipher_fn, out);
581: }
582:
583: static void
584: list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
585: {
586: if (m)
587: BIO_printf(arg, "%s\n", EVP_MD_name(m));
588: else {
589: if (!from)
590: from = "<undefined>";
591: if (!to)
592: to = "<undefined>";
593: BIO_printf(arg, "%s => %s\n", from, to);
594: }
595: }
596:
597: static void
598: list_md(BIO * out)
599: {
600: EVP_MD_do_all_sorted(list_md_fn, out);
601: }
602:
603: static int
604: function_cmp(const FUNCTION * a, const FUNCTION * b)
605: {
606: return strncmp(a->name, b->name, 8);
607: }
608:
609: static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION)
610:
611: static unsigned long
612: function_hash(const FUNCTION * a)
613: {
614: return lh_strhash(a->name);
615: }
616:
617: static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION)
618:
619: static LHASH_OF(FUNCTION) *
620: prog_init(void)
621: {
622: LHASH_OF(FUNCTION) * ret;
623: FUNCTION *f;
624: size_t i;
625:
626: /* Purely so it looks nice when the user hits ? */
627: for (i = 0, f = functions; f->name != NULL; ++f, ++i)
628: ;
629: qsort(functions, i, sizeof *functions, SortFnByName);
630:
631: if ((ret = lh_FUNCTION_new()) == NULL)
632: return (NULL);
633:
634: for (f = functions; f->name != NULL; f++)
635: (void) lh_FUNCTION_insert(ret, f);
636: return (ret);
637: }
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