load.c revision 57422 
1/*
2 * Copyright (c) 1997 - 2000 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 1.36 2000/02/16 16:05:28 assar 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 *etypes;
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
285#if 0
286static void
287parse_etypes(char *str, unsigned **val, unsigned *len)
288{
289    unsigned v;
290
291    *val = NULL;
292    *len = 0;
293    while(sscanf(str, "%u", &v) == 1) {
294	*val = realloc(*val, (*len+1) * sizeof(**val));
295	(*val)[(*len)++] = v;
296	str = strchr(str, ':');
297	if(str == NULL)
298	    break;
299	str++;
300    }
301}
302#endif
303
304/*
305 * Parse the dump file in `filename' and create the database (merging
306 * iff merge)
307 */
308
309static int
310doit(const char *filename, int merge)
311{
312    krb5_error_code ret;
313    FILE *f;
314    char s[1024];
315    char *p;
316    int line;
317    int flags = O_RDWR;
318    struct entry e;
319    hdb_entry ent;
320    HDB *db = _kadm5_s_get_db(kadm_handle);
321
322    f = fopen(filename, "r");
323    if(f == NULL){
324	krb5_warn(context, errno, "fopen(%s)", filename);
325	return 1;
326    }
327    if(!merge)
328	flags |= O_CREAT | O_TRUNC;
329    ret = db->open(context, db, flags, 0600);
330    if(ret){
331	krb5_warn(context, ret, "hdb_open");
332	fclose(f);
333	return 1;
334    }
335    line = 0;
336    while(fgets(s, sizeof(s), f)){
337	line++;
338	e.principal = s;
339	for(p = s; *p; p++){
340	    if(*p == '\\')
341		p++;
342	    else if(isspace((unsigned char)*p)) {
343		*p = 0;
344		break;
345	    }
346	}
347	p = skip_next(p);
348
349	e.key = p;
350	p = skip_next(p);
351
352	e.created = p;
353	p = skip_next(p);
354
355	e.modified = p;
356	p = skip_next(p);
357
358	e.valid_start = p;
359	p = skip_next(p);
360
361	e.valid_end = p;
362	p = skip_next(p);
363
364	e.pw_end = p;
365	p = skip_next(p);
366
367	e.max_life = p;
368	p = skip_next(p);
369
370	e.max_renew = p;
371	p = skip_next(p);
372
373	e.flags = p;
374	p = skip_next(p);
375
376	e.etypes = p;
377	p = skip_next(p);
378
379	memset(&ent, 0, sizeof(ent));
380	ret = krb5_parse_name(context, e.principal, &ent.principal);
381	if(ret) {
382	    fprintf(stderr, "%s:%d:%s (%s)\n",
383		    filename,
384		    line,
385		    krb5_get_err_text(context, ret),
386		    e.principal);
387	    continue;
388	}
389
390	if (parse_keys(&ent, e.key)) {
391	    fprintf (stderr, "%s:%d:error parsing keys (%s)\n",
392		     filename, line, e.key);
393	    hdb_free_entry (context, &ent);
394	    continue;
395	}
396
397	if (parse_event(&ent.created_by, e.created) == -1) {
398	    fprintf (stderr, "%s:%d:error parsing created event (%s)\n",
399		     filename, line, e.created);
400	    hdb_free_entry (context, &ent);
401	    continue;
402	}
403	if (parse_event_alloc (&ent.modified_by, e.modified) == -1) {
404	    fprintf (stderr, "%s:%d:error parsing event (%s)\n",
405		     filename, line, e.modified);
406	    hdb_free_entry (context, &ent);
407	    continue;
408	}
409	if (parse_time_string_alloc (&ent.valid_start, e.valid_start) == -1) {
410	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
411		     filename, line, e.valid_start);
412	    hdb_free_entry (context, &ent);
413	    continue;
414	}
415	if (parse_time_string_alloc (&ent.valid_end,   e.valid_end) == -1) {
416	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
417		     filename, line, e.valid_end);
418	    hdb_free_entry (context, &ent);
419	    continue;
420	}
421	if (parse_time_string_alloc (&ent.pw_end,      e.pw_end) == -1) {
422	    fprintf (stderr, "%s:%d:error parsing time (%s)\n",
423		     filename, line, e.pw_end);
424	    hdb_free_entry (context, &ent);
425	    continue;
426	}
427
428	if (parse_integer_alloc (&ent.max_life,  e.max_life) == -1) {
429	    fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
430		     filename, line, e.max_life);
431	    hdb_free_entry (context, &ent);
432	    continue;
433
434	}
435	if (parse_integer_alloc (&ent.max_renew, e.max_renew) == -1) {
436	    fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
437		     filename, line, e.max_renew);
438	    hdb_free_entry (context, &ent);
439	    continue;
440	}
441
442	if (parse_hdbflags2int (&ent.flags, e.flags) != 1) {
443	    fprintf (stderr, "%s:%d:error parsing flags (%s)\n",
444		     filename, line, e.flags);
445	    hdb_free_entry (context, &ent);
446	    continue;
447	}
448#if 0
449	ALLOC(ent.etypes);
450	parse_etypes(e.etypes, &ent.etypes->val, &ent.etypes->len);
451	if(ent.etypes->len == 0) {
452	    free(ent.etypes);
453	    ent.etypes = NULL;
454	}
455#endif
456
457	db->store(context, db, HDB_F_REPLACE, &ent);
458	hdb_free_entry (context, &ent);
459    }
460    db->close(context, db);
461    fclose(f);
462    return 0;
463}
464
465int
466load(int argc, char **argv)
467{
468    if(argc < 2){
469	krb5_warnx(context, "Usage: load filename");
470	return 0;
471    }
472    doit(argv[1], 0);
473    return 0;
474}
475
476int
477merge(int argc, char **argv)
478{
479    if(argc < 2){
480	krb5_warnx(context, "Usage: merge filename");
481	return 0;
482    }
483    doit(argv[1], 1);
484    return 0;
485}
486