load.c revision 103423 
1/*
2 * Copyright (c) 1997-2002 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kadmin_locl.h"
35#include <kadm5/private.h>
36
37RCSID("$Id: load.c,v 1.44 2002/09/04 20:44:35 joda Exp $");
38
39struct entry {
40    char *principal;
41    char *key;
42    char *max_life;
43    char *max_renew;
44    char *created;
45    char *modified;
46    char *valid_start;
47    char *valid_end;
48    char *pw_end;
49    char *flags;
50    char *generation;
51};
52
53static char *
54skip_next(char *p)
55{
56    while(*p && !isspace((unsigned char)*p))
57	p++;
58    *p++ = 0;
59    while(*p && isspace((unsigned char)*p))
60	p++;
61    return p;
62}
63
64/*
65 * Parse the time in `s', returning:
66 * -1 if error parsing
67 * 0  if none  present
68 * 1  if parsed ok
69 */
70
71static int
72parse_time_string(time_t *t, const char *s)
73{
74    int year, month, date, hour, minute, second;
75    struct tm tm;
76
77    if(strcmp(s, "-") == 0)
78	return 0;
79    if(sscanf(s, "%04d%02d%02d%02d%02d%02d",
80	      &year, &month, &date, &hour, &minute, &second) != 6)
81	return -1;
82    tm.tm_year  = year - 1900;
83    tm.tm_mon   = month - 1;
84    tm.tm_mday  = date;
85    tm.tm_hour  = hour;
86    tm.tm_min   = minute;
87    tm.tm_sec   = second;
88    tm.tm_isdst = 0;
89    *t = timegm(&tm);
90    return 1;
91}
92
93/*
94 * parse time, allocating space in *t if it's there
95 */
96
97static int
98parse_time_string_alloc (time_t **t, const char *s)
99{
100    time_t tmp;
101    int ret;
102
103    *t = NULL;
104    ret = parse_time_string (&tmp, s);
105    if (ret == 1) {
106	*t = malloc (sizeof (**t));
107	if (*t == NULL)
108	    krb5_errx (context, 1, "malloc: out of memory");
109	**t = tmp;
110    }
111    return ret;
112}
113
114/*
115 * see parse_time_string for calling convention
116 */
117
118static int
119parse_integer(unsigned *u, const char *s)
120{
121    if(strcmp(s, "-") == 0)
122	return 0;
123    if (sscanf(s, "%u", u) != 1)
124	return -1;
125    return 1;
126}
127
128static int
129parse_integer_alloc (int **u, const char *s)
130{
131    unsigned tmp;
132    int ret;
133
134    *u = NULL;
135    ret = parse_integer (&tmp, s);
136    if (ret == 1) {
137	*u = malloc (sizeof (**u));
138	if (*u == NULL)
139	    krb5_errx (context, 1, "malloc: out of memory");
140	**u = tmp;
141    }
142    return ret;
143}
144
145/*
146 * Parse dumped keys in `str' and store them in `ent'
147 * return -1 if parsing failed
148 */
149
150static int
151parse_keys(hdb_entry *ent, char *str)
152{
153    krb5_error_code ret;
154    int tmp;
155    char *p;
156    int i;
157
158    p = strsep(&str, ":");
159    if (sscanf(p, "%d", &tmp) != 1)
160	return 1;
161    ent->kvno = tmp;
162    p = strsep(&str, ":");
163    while(p){
164	Key *key;
165	key = realloc(ent->keys.val,
166		      (ent->keys.len + 1) * sizeof(*ent->keys.val));
167	if(key == NULL)
168	    krb5_errx (context, 1, "realloc: out of memory");
169	ent->keys.val = key;
170	key = ent->keys.val + ent->keys.len;
171	ent->keys.len++;
172	memset(key, 0, sizeof(*key));
173	if(sscanf(p, "%d", &tmp) == 1) {
174	    key->mkvno = malloc(sizeof(*key->mkvno));
175	    *key->mkvno = tmp;
176	} else
177	    key->mkvno = NULL;
178	p = strsep(&str, ":");
179	if (sscanf(p, "%d", &tmp) != 1)
180	    return 1;
181	key->key.keytype = tmp;
182	p = strsep(&str, ":");
183	ret = krb5_data_alloc(&key->key.keyvalue, (strlen(p) - 1) / 2 + 1);
184	if (ret)
185	    krb5_err (context, 1, ret, "krb5_data_alloc");
186	for(i = 0; i < strlen(p); i += 2) {
187	    if(sscanf(p + i, "%02x", &tmp) != 1)
188		return 1;
189	    ((u_char*)key->key.keyvalue.data)[i / 2] = tmp;
190	}
191	p = strsep(&str, ":");
192	if(strcmp(p, "-") != 0){
193	    unsigned type;
194	    size_t p_len;
195
196	    if(sscanf(p, "%u/", &type) != 1)
197		return 1;
198	    p = strchr(p, '/');
199	    if(p == NULL)
200		return 1;
201	    p++;
202	    p_len = strlen(p);
203
204	    key->salt = malloc(sizeof(*key->salt));
205	    if (key->salt == NULL)
206		krb5_errx (context, 1, "malloc: out of memory");
207	    key->salt->type = type;
208
209	    if (p_len) {
210		if(*p == '\"') {
211		    ret = krb5_data_copy(&key->salt->salt, p + 1, p_len - 2);
212		    if (ret)
213			krb5_err (context, 1, ret, "krb5_data_copy");
214		} else {
215		    ret = krb5_data_alloc(&key->salt->salt,
216					  (p_len - 1) / 2 + 1);
217		    if (ret)
218			krb5_err (context, 1, ret, "krb5_data_alloc");
219		    for(i = 0; i < p_len; i += 2){
220			if (sscanf(p + i, "%02x", &tmp) != 1)
221			    return 1;
222			((u_char*)key->salt->salt.data)[i / 2] = tmp;
223		    }
224		}
225	    } else
226		krb5_data_zero (&key->salt->salt);
227	}
228	p = strsep(&str, ":");
229    }
230    return 0;
231}
232
233/*
234 * see parse_time_string for calling convention
235 */
236
237static int
238parse_event(Event *ev, char *s)
239{
240    krb5_error_code ret;
241    char *p;
242
243    if(strcmp(s, "-") == 0)
244	return 0;
245    memset(ev, 0, sizeof(*ev));
246    p = strsep(&s, ":");
247    if(parse_time_string(&ev->time, p) != 1)
248	return -1;
249    p = strsep(&s, ":");
250    ret = krb5_parse_name(context, p, &ev->principal);
251    if (ret)
252	return -1;
253    return 1;
254}
255
256static int
257parse_event_alloc (Event **ev, char *s)
258{
259    Event tmp;
260    int ret;
261
262    *ev = NULL;
263    ret = parse_event (&tmp, s);
264    if (ret == 1) {
265	*ev = malloc (sizeof (**ev));
266	if (*ev == NULL)
267	    krb5_errx (context, 1, "malloc: out of memory");
268	**ev = tmp;
269    }
270    return ret;
271}
272
273static int
274parse_hdbflags2int(HDBFlags *f, const char *s)
275{
276    int ret;
277    unsigned tmp;
278
279    ret = parse_integer (&tmp, s);
280    if (ret == 1)
281	*f = int2HDBFlags (tmp);
282    return ret;
283}
284
285static int
286parse_generation(char *str, GENERATION **gen)
287{
288    char *p;
289    int v;
290
291    if(strcmp(str, "-") == 0 || *str == '\0') {
292	*gen = NULL;
293	return 0;
294    }
295    *gen = calloc(1, sizeof(**gen));
296
297    p = strsep(&str, ":");
298    if(parse_time_string(&(*gen)->time, p) != 1)
299	return -1;
300    p = strsep(&str, ":");
301    if(sscanf(p, "%d", &v) != 1)
302	return -1;
303    (*gen)->usec = v;
304    p = strsep(&str, ":");
305    if(sscanf(p, "%d", &v) != 1)
306	return -1;
307    (*gen)->gen = v - 1; /* XXX gets bumped in _hdb_store */
308    return 0;
309}
310
311
312/*
313 * Parse the dump file in `filename' and create the database (merging
314 * iff merge)
315 */
316
317static int
318doit(const char *filename, int merge)
319{
320    krb5_error_code ret;
321    FILE *f;
322    char s[8192]; /* XXX should fix this properly */
323    char *p;
324    int line;
325    int flags = O_RDWR;
326    struct entry e;
327    hdb_entry ent;
328    HDB *db = _kadm5_s_get_db(kadm_handle);
329
330    f = fopen(filename, "r");
331    if(f == NULL){
332	krb5_warn(context, errno, "fopen(%s)", filename);
333	return 1;
334    }
335    ret = kadm5_log_truncate (kadm_handle);
336    if (ret) {
337	fclose (f);
338	krb5_warn(context, ret, "kadm5_log_truncate");
339	return 1;
340    }
341
342    if(!merge)
343	flags |= O_CREAT | O_TRUNC;
344    ret = db->open(context, db, flags, 0600);
345    if(ret){
346	krb5_warn(context, ret, "hdb_open");
347	fclose(f);
348	return 1;
349    }
350    line = 0;
351    ret = 0;
352    while(fgets(s, sizeof(s), f) != NULL) {
353	ret = 0;
354	line++;
355	e.principal = s;
356	for(p = s; *p; p++){
357	    if(*p == '\\')
358		p++;
359	    else if(isspace((unsigned char)*p)) {
360		*p = 0;
361		break;
362	    }
363	}
364	p = skip_next(p);
365
366	e.key = p;
367	p = skip_next(p);
368
369	e.created = p;
370	p = skip_next(p);
371
372	e.modified = p;
373	p = skip_next(p);
374
375	e.valid_start = p;
376	p = skip_next(p);
377
378	e.valid_end = p;
379	p = skip_next(p);
380
381	e.pw_end = p;
382	p = skip_next(p);
383
384	e.max_life = p;
385	p = skip_next(p);
386
387	e.max_renew = p;
388	p = skip_next(p);
389
390	e.flags = p;
391	p = skip_next(p);
392
393	e.generation = p;
394	p = skip_next(p);
395
396	memset(&ent, 0, sizeof(ent));
397	ret = krb5_parse_name(context, e.principal, &ent.principal);
398	if(ret) {
399	    fprintf(stderr, "%s:%d:%s (%s)\n",
400		    filename,
401		    line,
402		    krb5_get_err_text(context, ret),
403		    e.principal);
404	    continue;
405	}
406
407	if (parse_keys(&ent, e.key)) {
408	    fprintf (stderr, "%s:%d:error parsing keys (%s)\n",
409		     filename, line, e.key);
410	    hdb_free_entry (context, &ent);
411	    continue;
412	}
413
414	if (parse_event(&ent.created_by, e.created) == -1) {
415	    fprintf (stderr, "%s:%d:error parsing created event (%s)\n",
416		     filename, line, e.created);
417	    hdb_free_entry (context, &ent);
418	    continue;
419	}
420	if (parse_event_alloc (&ent.modified_by, e.modified) == -1) {
421	    fprintf (stderr, "%s:%d:error parsing event (%s)\n",
422		     filename, line, e.modified);
423	    hdb_free_entry (context, &ent);
424	    continue;
425	}
426	if (parse_time_string_alloc (&ent.valid_start, e.valid_start) == -1) {
427	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
428		     filename, line, e.valid_start);
429	    hdb_free_entry (context, &ent);
430	    continue;
431	}
432	if (parse_time_string_alloc (&ent.valid_end,   e.valid_end) == -1) {
433	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
434		     filename, line, e.valid_end);
435	    hdb_free_entry (context, &ent);
436	    continue;
437	}
438	if (parse_time_string_alloc (&ent.pw_end,      e.pw_end) == -1) {
439	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
440		     filename, line, e.pw_end);
441	    hdb_free_entry (context, &ent);
442	    continue;
443	}
444
445	if (parse_integer_alloc (&ent.max_life,  e.max_life) == -1) {
446	    fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
447		     filename, line, e.max_life);
448	    hdb_free_entry (context, &ent);
449	    continue;
450
451	}
452	if (parse_integer_alloc (&ent.max_renew, e.max_renew) == -1) {
453	    fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
454		     filename, line, e.max_renew);
455	    hdb_free_entry (context, &ent);
456	    continue;
457	}
458
459	if (parse_hdbflags2int (&ent.flags, e.flags) != 1) {
460	    fprintf (stderr, "%s:%d:error parsing flags (%s)\n",
461		     filename, line, e.flags);
462	    hdb_free_entry (context, &ent);
463	    continue;
464	}
465
466	if(parse_generation(e.generation, &ent.generation) == -1) {
467	    fprintf (stderr, "%s:%d:error parsing generation (%s)\n",
468		     filename, line, e.generation);
469	    hdb_free_entry (context, &ent);
470	    continue;
471	}
472
473	ret = db->store(context, db, HDB_F_REPLACE, &ent);
474	hdb_free_entry (context, &ent);
475	if (ret) {
476	    krb5_warn(context, ret, "db_store");
477	    break;
478	}
479    }
480    db->close(context, db);
481    fclose(f);
482    return ret != 0;
483}
484
485
486static struct getargs args[] = {
487    { "help", 'h', arg_flag, NULL }
488};
489
490static int num_args = sizeof(args) / sizeof(args[0]);
491
492static void
493usage(const char *name)
494{
495    arg_printusage (args, num_args, name, "file");
496}
497
498
499
500int
501load(int argc, char **argv)
502{
503    int optind = 0;
504    int help_flag = 0;
505
506    args[0].value = &help_flag;
507
508    if(getarg(args, num_args, argc, argv, &optind)) {
509	usage ("load");
510	return 0;
511    }
512    if(argc - optind != 1 || help_flag) {
513	usage ("load");
514	return 0;
515    }
516
517    doit(argv[optind], 0);
518    return 0;
519}
520
521int
522merge(int argc, char **argv)
523{
524    int optind = 0;
525    int help_flag = 0;
526
527    args[0].value = &help_flag;
528
529    if(getarg(args, num_args, argc, argv, &optind)) {
530	usage ("merge");
531	return 0;
532    }
533    if(argc - optind != 1 || help_flag) {
534	usage ("merge");
535	return 0;
536    }
537
538    doit(argv[optind], 1);
539    return 0;
540}
541