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1 /* apps/srp.c */
2 /* Written by Peter Sylvester (peter.sylvester@edelweb.fr)
3  * for the EdelKey project and contributed to the OpenSSL project 2004.
4  */
5 /* ====================================================================
6  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in
17  *    the documentation and/or other materials provided with the
18  *    distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  *    software must display the following acknowledgment:
22  *    "This product includes software developed by the OpenSSL Project
23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26  *    endorse or promote products derived from this software without
27  *    prior written permission. For written permission, please contact
28  *    licensing@OpenSSL.org.
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  *    nor may "OpenSSL" appear in their names without prior written
32  *    permission of the OpenSSL Project.
33  *
34  * 6. Redistributions of any form whatsoever must retain the following
35  *    acknowledgment:
36  *    "This product includes software developed by the OpenSSL Project
37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50  * OF THE POSSIBILITY OF SUCH DAMAGE.
51  * ====================================================================
52  *
53  * This product includes cryptographic software written by Eric Young
54  * (eay@cryptsoft.com).  This product includes software written by Tim
55  * Hudson (tjh@cryptsoft.com).
56  *
57  */
58 #include <openssl/opensslconf.h>
59 
60 #ifndef OPENSSL_NO_SRP
61 #include <stdio.h>
62 #include <stdlib.h>
63 #include <string.h>
64 #include <openssl/conf.h>
65 #include <openssl/bio.h>
66 #include <openssl/err.h>
67 #include <openssl/txt_db.h>
68 #include <openssl/buffer.h>
69 #include <openssl/srp.h>
70 
71 #include "apps.h"
72 
73 #undef PROG
74 #define PROG srp_main
75 
76 #define BASE_SECTION	"srp"
77 #define CONFIG_FILE "openssl.cnf"
78 
79 #define ENV_RANDFILE		"RANDFILE"
80 
81 #define ENV_DATABASE		"srpvfile"
82 #define ENV_DEFAULT_SRP		"default_srp"
83 
84 static char *srp_usage[]={
85 "usage: srp [args] [user] \n",
86 "\n",
87 " -verbose        Talk alot while doing things\n",
88 " -config file    A config file\n",
89 " -name arg       The particular srp definition to use\n",
90 " -srpvfile arg   The srp verifier file name\n",
91 " -add            add an user and srp verifier\n",
92 " -modify         modify the srp verifier of an existing user\n",
93 " -delete         delete user from verifier file\n",
94 " -list           list user\n",
95 " -gn arg         g and N values to be used for new verifier\n",
96 " -userinfo arg   additional info to be set for user\n",
97 " -passin arg     input file pass phrase source\n",
98 " -passout arg    output file pass phrase source\n",
99 #ifndef OPENSSL_NO_ENGINE
100 " -engine e         - use engine e, possibly a hardware device.\n",
101 #endif
102 NULL
103 };
104 
105 #ifdef EFENCE
106 extern int EF_PROTECT_FREE;
107 extern int EF_PROTECT_BELOW;
108 extern int EF_ALIGNMENT;
109 #endif
110 
111 static CONF *conf=NULL;
112 static char *section=NULL;
113 
114 #define VERBOSE if (verbose)
115 #define VVERBOSE if (verbose>1)
116 
117 
118 int MAIN(int, char **);
119 
get_index(CA_DB * db,char * id,char type)120 static int get_index(CA_DB *db, char* id, char type)
121 	{
122 	char ** pp;
123 	int i;
124 	if (id == NULL) return -1;
125 	if (type == DB_SRP_INDEX)
126 	for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
127 		{
128 		pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
129 		if (pp[DB_srptype][0] == DB_SRP_INDEX  && !strcmp(id,pp[DB_srpid]))
130 			return i;
131 		}
132 	else for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
133 		{
134 		pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
135 
136 		if (pp[DB_srptype][0] != DB_SRP_INDEX && !strcmp(id,pp[DB_srpid]))
137 			return i;
138 		}
139 
140 	return -1 ;
141 	}
142 
print_entry(CA_DB * db,BIO * bio,int indx,int verbose,char * s)143 static void print_entry(CA_DB *db, BIO *bio, int indx, int verbose, char *s)
144 	{
145 	if (indx >= 0 && verbose)
146 		{
147 		int j;
148 		char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx);
149 		BIO_printf(bio, "%s \"%s\"\n", s, pp[DB_srpid]);
150 		for (j = 0; j < DB_NUMBER; j++)
151 			{
152 			BIO_printf(bio_err,"  %d = \"%s\"\n", j, pp[j]);
153 			}
154 		}
155 	}
156 
print_index(CA_DB * db,BIO * bio,int indexindex,int verbose)157 static void print_index(CA_DB *db, BIO *bio, int indexindex, int verbose)
158 	{
159 	print_entry(db, bio, indexindex, verbose, "g N entry") ;
160 	}
161 
print_user(CA_DB * db,BIO * bio,int userindex,int verbose)162 static void print_user(CA_DB *db, BIO *bio, int userindex, int verbose)
163 	{
164 	if (verbose > 0)
165 		{
166 		char **pp = sk_OPENSSL_PSTRING_value(db->db->data,userindex);
167 
168 		if (pp[DB_srptype][0] != 'I')
169 			{
170 			print_entry(db, bio, userindex, verbose, "User entry");
171 			print_entry(db, bio, get_index(db, pp[DB_srpgN], 'I'), verbose, "g N entry");
172 			}
173 
174 		}
175 	}
176 
update_index(CA_DB * db,BIO * bio,char ** row)177 static int update_index(CA_DB *db, BIO *bio, char **row)
178 	{
179 	char ** irow;
180 	int i;
181 
182 	if ((irow=(char **)OPENSSL_malloc(sizeof(char *)*(DB_NUMBER+1))) == NULL)
183 		{
184 		BIO_printf(bio_err,"Memory allocation failure\n");
185 		return 0;
186 		}
187 
188 	for (i=0; i<DB_NUMBER; i++)
189 		{
190 		irow[i]=row[i];
191 		row[i]=NULL;
192 		}
193 	irow[DB_NUMBER]=NULL;
194 
195 	if (!TXT_DB_insert(db->db,irow))
196 		{
197 		BIO_printf(bio,"failed to update srpvfile\n");
198 		BIO_printf(bio,"TXT_DB error number %ld\n",db->db->error);
199 		OPENSSL_free(irow);
200 		return 0;
201 		}
202 	return 1;
203 	}
204 
lookup_fail(const char * name,char * tag)205 static void lookup_fail(const char *name, char *tag)
206 	{
207 	BIO_printf(bio_err,"variable lookup failed for %s::%s\n",name,tag);
208 	}
209 
210 
srp_verify_user(const char * user,const char * srp_verifier,char * srp_usersalt,const char * g,const char * N,const char * passin,BIO * bio,int verbose)211 static char *srp_verify_user(const char *user, const char *srp_verifier,
212 			     char *srp_usersalt, const char *g, const char *N,
213 			     const char *passin, BIO *bio, int verbose)
214 	{
215 	char password[1024];
216 	PW_CB_DATA cb_tmp;
217 	char *verifier = NULL;
218 	char *gNid = NULL;
219 
220 	cb_tmp.prompt_info = user;
221 	cb_tmp.password = passin;
222 
223  	if (password_callback(password, 1024, 0, &cb_tmp) >0)
224 		{
225 		VERBOSE BIO_printf(bio,"Validating\n   user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,srp_verifier,srp_usersalt, g, N);
226 		BIO_printf(bio, "Pass %s\n", password);
227 
228 		if (!(gNid=SRP_create_verifier(user, password, &srp_usersalt, &verifier, N, g)))
229 			{
230 			BIO_printf(bio, "Internal error validating SRP verifier\n");
231 			}
232 		else
233 			{
234 			if (strcmp(verifier, srp_verifier))
235 				gNid = NULL;
236 			OPENSSL_free(verifier);
237 			}
238 		}
239 	return gNid;
240 	}
241 
srp_create_user(char * user,char ** srp_verifier,char ** srp_usersalt,char * g,char * N,char * passout,BIO * bio,int verbose)242 static char *srp_create_user(char *user, char **srp_verifier,
243 			     char **srp_usersalt, char *g, char *N,
244 			     char *passout, BIO *bio, int verbose)
245 	{
246  	char password[1024];
247         PW_CB_DATA cb_tmp;
248 	char *gNid = NULL;
249 	char *salt = NULL;
250         cb_tmp.prompt_info = user;
251         cb_tmp.password = passout;
252 
253 	if (password_callback(password,1024,1,&cb_tmp) >0)
254 		{
255 		VERBOSE BIO_printf(bio,"Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,g,N);
256 		if (!(gNid =SRP_create_verifier(user, password, &salt, srp_verifier, N, g)))
257 			{
258 			BIO_printf(bio,"Internal error creating SRP verifier\n");
259 			}
260 		else
261 			*srp_usersalt = salt;
262 		VVERBOSE BIO_printf(bio,"gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,salt, *srp_verifier);
263 
264 		}
265 	return gNid;
266 	}
267 
MAIN(int argc,char ** argv)268 int MAIN(int argc, char **argv)
269 	{
270 	int add_user = 0;
271 	int list_user= 0;
272 	int delete_user= 0;
273 	int modify_user= 0;
274 	char * user = NULL;
275 
276 	char *passargin = NULL, *passargout = NULL;
277 	char *passin = NULL, *passout = NULL;
278         char * gN = NULL;
279 	int gNindex = -1;
280 	char ** gNrow = NULL;
281 	int maxgN = -1;
282 
283 	char * userinfo = NULL;
284 
285 	int badops=0;
286 	int ret=1;
287 	int errors=0;
288 	int verbose=0;
289 	int doupdatedb=0;
290 	char *configfile=NULL;
291 	char *dbfile=NULL;
292 	CA_DB *db=NULL;
293 	char **pp ;
294 	int i;
295 	long errorline = -1;
296 	char *randfile=NULL;
297 #ifndef OPENSSL_NO_ENGINE
298 	char *engine = NULL;
299 #endif
300 	char *tofree=NULL;
301 	DB_ATTR db_attr;
302 
303 #ifdef EFENCE
304 EF_PROTECT_FREE=1;
305 EF_PROTECT_BELOW=1;
306 EF_ALIGNMENT=0;
307 #endif
308 
309 	apps_startup();
310 
311 	conf = NULL;
312 	section = NULL;
313 
314 	if (bio_err == NULL)
315 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
316 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
317 
318 	argc--;
319 	argv++;
320 	while (argc >= 1 && badops == 0)
321 		{
322 		if	(strcmp(*argv,"-verbose") == 0)
323 			verbose++;
324 		else if	(strcmp(*argv,"-config") == 0)
325 			{
326 			if (--argc < 1) goto bad;
327 			configfile= *(++argv);
328 			}
329 		else if (strcmp(*argv,"-name") == 0)
330 			{
331 			if (--argc < 1) goto bad;
332 			section= *(++argv);
333 			}
334 		else if	(strcmp(*argv,"-srpvfile") == 0)
335 			{
336 			if (--argc < 1) goto bad;
337 			dbfile= *(++argv);
338 			}
339 		else if (strcmp(*argv,"-add") == 0)
340 			add_user=1;
341 		else if (strcmp(*argv,"-delete") == 0)
342 			delete_user=1;
343 		else if (strcmp(*argv,"-modify") == 0)
344 			modify_user=1;
345 		else if (strcmp(*argv,"-list") == 0)
346 			list_user=1;
347 		else if (strcmp(*argv,"-gn") == 0)
348 			{
349 			if (--argc < 1) goto bad;
350 			gN= *(++argv);
351 			}
352 		else if (strcmp(*argv,"-userinfo") == 0)
353 			{
354 			if (--argc < 1) goto bad;
355 			userinfo= *(++argv);
356 			}
357 		else if (strcmp(*argv,"-passin") == 0)
358 			{
359 			if (--argc < 1) goto bad;
360 			passargin= *(++argv);
361 			}
362 		else if (strcmp(*argv,"-passout") == 0)
363 			{
364 			if (--argc < 1) goto bad;
365 			passargout= *(++argv);
366 			}
367 #ifndef OPENSSL_NO_ENGINE
368 		else if (strcmp(*argv,"-engine") == 0)
369 			{
370 			if (--argc < 1) goto bad;
371 			engine= *(++argv);
372 			}
373 #endif
374 
375 		else if (**argv == '-')
376 			{
377 bad:
378 			BIO_printf(bio_err,"unknown option %s\n",*argv);
379 			badops=1;
380 			break;
381 			}
382 		else
383 			break;
384 
385 		argc--;
386 		argv++;
387 		}
388 
389 	if (dbfile && configfile)
390 		{
391 		BIO_printf(bio_err,"-dbfile and -configfile cannot be specified together.\n");
392 		badops = 1;
393 		}
394 	if (add_user+delete_user+modify_user+list_user != 1)
395 		{
396 		BIO_printf(bio_err,"Exactly one of the options -add, -delete, -modify -list must be specified.\n");
397 		badops = 1;
398 		}
399 	if (delete_user+modify_user+delete_user== 1 && argc <= 0)
400 		{
401 		BIO_printf(bio_err,"Need at least one user for options -add, -delete, -modify. \n");
402 		badops = 1;
403 		}
404 	if ((passin || passout) && argc != 1 )
405 		{
406 		BIO_printf(bio_err,"-passin, -passout arguments only valid with one user.\n");
407 		badops = 1;
408 		}
409 
410 	if (badops)
411 		{
412 		for (pp=srp_usage; (*pp != NULL); pp++)
413 			BIO_printf(bio_err,"%s",*pp);
414 
415 		BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
416 		BIO_printf(bio_err,"                 load the file (or the files in the directory) into\n");
417 		BIO_printf(bio_err,"                 the random number generator\n");
418 		goto err;
419 		}
420 
421 	ERR_load_crypto_strings();
422 
423 #ifndef OPENSSL_NO_ENGINE
424 	setup_engine(bio_err, engine, 0);
425 #endif
426 
427 	if(!app_passwd(bio_err, passargin, passargout, &passin, &passout))
428 		{
429 		BIO_printf(bio_err, "Error getting passwords\n");
430 		goto err;
431 		}
432 
433         if (!dbfile)
434 		{
435 
436 
437 	/*****************************************************************/
438 		tofree=NULL;
439 		if (configfile == NULL) configfile = getenv("OPENSSL_CONF");
440 		if (configfile == NULL) configfile = getenv("SSLEAY_CONF");
441 		if (configfile == NULL)
442 			{
443 			const char *s=X509_get_default_cert_area();
444 			size_t len;
445 
446 #ifdef OPENSSL_SYS_VMS
447 			len = strlen(s)+sizeof(CONFIG_FILE);
448 			tofree=OPENSSL_malloc(len);
449 			strcpy(tofree,s);
450 #else
451 			len = strlen(s)+sizeof(CONFIG_FILE)+1;
452 			tofree=OPENSSL_malloc(len);
453 			BUF_strlcpy(tofree,s,len);
454 			BUF_strlcat(tofree,"/",len);
455 #endif
456 			BUF_strlcat(tofree,CONFIG_FILE,len);
457 			configfile=tofree;
458 			}
459 
460 		VERBOSE BIO_printf(bio_err,"Using configuration from %s\n",configfile);
461 		conf = NCONF_new(NULL);
462 		if (NCONF_load(conf,configfile,&errorline) <= 0)
463 			{
464 			if (errorline <= 0)
465 				BIO_printf(bio_err,"error loading the config file '%s'\n",
466 					configfile);
467 			else
468 				BIO_printf(bio_err,"error on line %ld of config file '%s'\n"
469 					,errorline,configfile);
470 			goto err;
471 			}
472 		if(tofree)
473 			{
474 			OPENSSL_free(tofree);
475 			tofree = NULL;
476 			}
477 
478 		if (!load_config(bio_err, conf))
479 			goto err;
480 
481 	/* Lets get the config section we are using */
482 		if (section == NULL)
483 			{
484 			VERBOSE BIO_printf(bio_err,"trying to read " ENV_DEFAULT_SRP " in \" BASE_SECTION \"\n");
485 
486 			section=NCONF_get_string(conf,BASE_SECTION,ENV_DEFAULT_SRP);
487 			if (section == NULL)
488 				{
489 				lookup_fail(BASE_SECTION,ENV_DEFAULT_SRP);
490 				goto err;
491 				}
492 			}
493 
494 		if (randfile == NULL && conf)
495 	        	randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE");
496 
497 
498 		VERBOSE BIO_printf(bio_err,"trying to read " ENV_DATABASE " in section \"%s\"\n",section);
499 
500 		if ((dbfile=NCONF_get_string(conf,section,ENV_DATABASE)) == NULL)
501 			{
502 			lookup_fail(section,ENV_DATABASE);
503 			goto err;
504 			}
505 
506         	}
507 	if (randfile == NULL)
508 		ERR_clear_error();
509        	else
510 		app_RAND_load_file(randfile, bio_err, 0);
511 
512 	VERBOSE BIO_printf(bio_err,"Trying to read SRP verifier file \"%s\"\n",dbfile);
513 
514 	db = load_index(dbfile, &db_attr);
515 	if (db == NULL) goto err;
516 
517 	/* Lets check some fields */
518 	for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
519 		{
520 		pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
521 
522 		if (pp[DB_srptype][0] == DB_SRP_INDEX)
523 			{
524 			maxgN = i;
525 			if (gNindex < 0 && gN != NULL && !strcmp(gN, pp[DB_srpid]))
526 				gNindex = i;
527 
528 			print_index(db, bio_err, i, verbose > 1);
529 			}
530 		}
531 
532 	VERBOSE BIO_printf(bio_err, "Database initialised\n");
533 
534 	if (gNindex >= 0)
535 		{
536 		gNrow = sk_OPENSSL_PSTRING_value(db->db->data,gNindex);
537 		print_entry(db, bio_err, gNindex, verbose > 1, "Default g and N");
538 		}
539 	else if (maxgN > 0 && !SRP_get_default_gN(gN))
540 		{
541 		BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN);
542 		goto err;
543 		}
544 	else
545 		{
546 		VERBOSE BIO_printf(bio_err, "Database has no g N information.\n");
547 		gNrow = NULL;
548 		}
549 
550 
551 	VVERBOSE BIO_printf(bio_err,"Starting user processing\n");
552 
553 	if (argc > 0)
554 		user = *(argv++) ;
555 
556 	while (list_user || user)
557 		{
558 		int userindex = -1;
559 		if (user)
560 			VVERBOSE BIO_printf(bio_err, "Processing user \"%s\"\n", user);
561 		if ((userindex = get_index(db, user, 'U')) >= 0)
562 			{
563 			print_user(db, bio_err, userindex, (verbose > 0) || list_user);
564 			}
565 
566 		if (list_user)
567 			{
568 			if (user == NULL)
569 				{
570 				BIO_printf(bio_err,"List all users\n");
571 
572 				for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
573 					{
574 					print_user(db,bio_err, i, 1);
575 					}
576 				list_user = 0;
577 				}
578 			else if (userindex < 0)
579 				{
580 				BIO_printf(bio_err, "user \"%s\" does not exist, ignored. t\n",
581 					   user);
582 				errors++;
583 				}
584 			}
585 		else if (add_user)
586 			{
587 			if (userindex >= 0)
588 				{
589 				/* reactivation of a new user */
590 				char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
591 				BIO_printf(bio_err, "user \"%s\" reactivated.\n", user);
592 				row[DB_srptype][0] = 'V';
593 
594 				doupdatedb = 1;
595 				}
596 			else
597 				{
598 				char *row[DB_NUMBER] ; char *gNid;
599 				row[DB_srpverifier] = NULL;
600 				row[DB_srpsalt] = NULL;
601 				row[DB_srpinfo] = NULL;
602 				if (!(gNid = srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:gN,gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose)))
603 					{
604 						BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned .\n", user);
605 						errors++;
606 						goto err;
607 					}
608 				row[DB_srpid] = BUF_strdup(user);
609 				row[DB_srptype] = BUF_strdup("v");
610 				row[DB_srpgN] = BUF_strdup(gNid);
611 
612 				if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] ||
613 					(userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))) ||
614 					!update_index(db, bio_err, row))
615 					{
616 					if (row[DB_srpid]) OPENSSL_free(row[DB_srpid]);
617 					if (row[DB_srpgN]) OPENSSL_free(row[DB_srpgN]);
618 					if (row[DB_srpinfo]) OPENSSL_free(row[DB_srpinfo]);
619 					if (row[DB_srptype]) OPENSSL_free(row[DB_srptype]);
620 					if (row[DB_srpverifier]) OPENSSL_free(row[DB_srpverifier]);
621 					if (row[DB_srpsalt]) OPENSSL_free(row[DB_srpsalt]);
622 					goto err;
623 					}
624 				doupdatedb = 1;
625 				}
626 			}
627 		else if (modify_user)
628 			{
629 			if (userindex < 0)
630 				{
631 				BIO_printf(bio_err,"user \"%s\" does not exist, operation ignored.\n",user);
632 				errors++;
633 				}
634 			else
635 				{
636 
637 				char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex);
638 				char type = row[DB_srptype][0];
639 				if (type == 'v')
640 					{
641 					BIO_printf(bio_err,"user \"%s\" already updated, operation ignored.\n",user);
642 					errors++;
643 					}
644 				else
645 					{
646 					char *gNid;
647 
648 					if (row[DB_srptype][0] == 'V')
649 						{
650 						int user_gN;
651 						char **irow = NULL;
652 						VERBOSE BIO_printf(bio_err,"Verifying password for user \"%s\"\n",user);
653 						if ( (user_gN = get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0)
654 							irow = (char **)sk_OPENSSL_PSTRING_value(db->db->data, userindex);
655 
656  						if (!srp_verify_user(user, row[DB_srpverifier], row[DB_srpsalt], irow ? irow[DB_srpsalt] : row[DB_srpgN], irow ? irow[DB_srpverifier] : NULL, passin, bio_err, verbose))
657 							{
658 							BIO_printf(bio_err, "Invalid password for user \"%s\", operation abandoned.\n", user);
659 							errors++;
660 							goto err;
661 							}
662 						}
663 					VERBOSE BIO_printf(bio_err,"Password for user \"%s\" ok.\n",user);
664 
665 					if (!(gNid=srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:NULL, gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose)))
666 						{
667 						BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned.\n", user);
668 						errors++;
669 						goto err;
670 						}
671 
672 					row[DB_srptype][0] = 'v';
673 					row[DB_srpgN] = BUF_strdup(gNid);
674 
675 					if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] ||
676 						(userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))))
677 						goto err;
678 
679 					doupdatedb = 1;
680 					}
681 				}
682 			}
683 		else if (delete_user)
684 			{
685 			if (userindex < 0)
686 				{
687 				BIO_printf(bio_err, "user \"%s\" does not exist, operation ignored. t\n", user);
688 				errors++;
689 				}
690 			else
691 				{
692 				char **xpp = sk_OPENSSL_PSTRING_value(db->db->data,userindex);
693 				BIO_printf(bio_err, "user \"%s\" revoked. t\n", user);
694 
695 				xpp[DB_srptype][0] = 'R';
696 
697 				doupdatedb = 1;
698 				}
699 			}
700 		if (--argc > 0)
701 			user = *(argv++) ;
702 		else
703 			{
704 			user = NULL;
705 			list_user = 0;
706 			}
707 		}
708 
709 	VERBOSE BIO_printf(bio_err,"User procession done.\n");
710 
711 
712 	if (doupdatedb)
713 		{
714 		/* Lets check some fields */
715 		for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++)
716 			{
717 			pp = sk_OPENSSL_PSTRING_value(db->db->data,i);
718 
719 			if (pp[DB_srptype][0] == 'v')
720 				{
721 				pp[DB_srptype][0] = 'V';
722 				print_user(db, bio_err, i, verbose);
723 				}
724 			}
725 
726 		VERBOSE BIO_printf(bio_err, "Trying to update srpvfile.\n");
727 		if (!save_index(dbfile, "new", db)) goto err;
728 
729 		VERBOSE BIO_printf(bio_err, "Temporary srpvfile created.\n");
730 		if (!rotate_index(dbfile, "new", "old")) goto err;
731 
732 		VERBOSE BIO_printf(bio_err, "srpvfile updated.\n");
733 		}
734 
735 	ret = (errors != 0);
736 err:
737 	if (errors != 0)
738 	VERBOSE BIO_printf(bio_err,"User errors %d.\n",errors);
739 
740 	VERBOSE BIO_printf(bio_err,"SRP terminating with code %d.\n",ret);
741 	if(tofree)
742 		OPENSSL_free(tofree);
743 	if (ret) ERR_print_errors(bio_err);
744 	if (randfile) app_RAND_write_file(randfile, bio_err);
745 	if (conf) NCONF_free(conf);
746 	if (db) free_index(db);
747 
748 	OBJ_cleanup();
749 	apps_shutdown();
750 	OPENSSL_EXIT(ret);
751 	}
752 
753 
754 
755 #endif
756 
757