1 /* $NetBSD: get.c,v 1.3 2014/04/24 13:45:33 pettai Exp $ */
2
3 /*
4 * Copyright (c) 1997-2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * 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 the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "kadmin_locl.h"
37 #include "kadmin-commands.h"
38 #include <krb5/parse_units.h>
39 #include <krb5/rtbl.h>
40
41 static struct field_name {
42 const char *fieldname;
43 unsigned int fieldvalue;
44 unsigned int subvalue;
45 uint32_t extra_mask;
46 const char *default_header;
47 const char *def_longheader;
48 unsigned int flags;
49 } field_names[] = {
50 { "principal", KADM5_PRINCIPAL, 0, 0, "Principal", "Principal", 0 },
51 { "princ_expire_time", KADM5_PRINC_EXPIRE_TIME, 0, 0, "Expiration", "Principal expires", 0 },
52 { "pw_expiration", KADM5_PW_EXPIRATION, 0, 0, "PW-exp", "Password expires", 0 },
53 { "last_pwd_change", KADM5_LAST_PWD_CHANGE, 0, 0, "PW-change", "Last password change", 0 },
54 { "max_life", KADM5_MAX_LIFE, 0, 0, "Max life", "Max ticket life", 0 },
55 { "max_rlife", KADM5_MAX_RLIFE, 0, 0, "Max renew", "Max renewable life", 0 },
56 { "mod_time", KADM5_MOD_TIME, 0, 0, "Mod time", "Last modified", 0 },
57 { "mod_name", KADM5_MOD_NAME, 0, 0, "Modifier", "Modifier", 0 },
58 { "attributes", KADM5_ATTRIBUTES, 0, 0, "Attributes", "Attributes", 0 },
59 { "kvno", KADM5_KVNO, 0, 0, "Kvno", "Kvno", RTBL_ALIGN_RIGHT },
60 { "mkvno", KADM5_MKVNO, 0, 0, "Mkvno", "Mkvno", RTBL_ALIGN_RIGHT },
61 { "last_success", KADM5_LAST_SUCCESS, 0, 0, "Last login", "Last successful login", 0 },
62 { "last_failed", KADM5_LAST_FAILED, 0, 0, "Last fail", "Last failed login", 0 },
63 { "fail_auth_count", KADM5_FAIL_AUTH_COUNT, 0, 0, "Fail count", "Failed login count", RTBL_ALIGN_RIGHT },
64 { "policy", KADM5_POLICY, 0, 0, "Policy", "Policy", 0 },
65 { "keytypes", KADM5_KEY_DATA, 0, KADM5_PRINCIPAL, "Keytypes", "Keytypes", 0 },
66 { "password", KADM5_TL_DATA, KRB5_TL_PASSWORD, KADM5_KEY_DATA, "Password", "Password", 0 },
67 { "pkinit-acl", KADM5_TL_DATA, KRB5_TL_PKINIT_ACL, 0, "PK-INIT ACL", "PK-INIT ACL", 0 },
68 { "aliases", KADM5_TL_DATA, KRB5_TL_ALIASES, 0, "Aliases", "Aliases", 0 },
69 { .fieldname = NULL }
70 };
71
72 struct field_info {
73 struct field_name *ff;
74 char *header;
75 struct field_info *next;
76 };
77
78 struct get_entry_data {
79 void (*format)(struct get_entry_data*, kadm5_principal_ent_t);
80 rtbl_t table;
81 uint32_t mask;
82 uint32_t extra_mask;
83 struct field_info *chead, **ctail;
84 };
85
86 static int
add_column(struct get_entry_data * data,struct field_name * ff,const char * header)87 add_column(struct get_entry_data *data, struct field_name *ff, const char *header)
88 {
89 struct field_info *f = malloc(sizeof(*f));
90 if (f == NULL)
91 return ENOMEM;
92 f->ff = ff;
93 if(header)
94 f->header = strdup(header);
95 else
96 f->header = NULL;
97 f->next = NULL;
98 *data->ctail = f;
99 data->ctail = &f->next;
100 data->mask |= ff->fieldvalue;
101 data->extra_mask |= ff->extra_mask;
102 if(data->table != NULL)
103 rtbl_add_column_by_id(data->table, ff->fieldvalue,
104 header ? header : ff->default_header, ff->flags);
105 return 0;
106 }
107
108 /*
109 * return 0 iff `salt' actually is the same as the current salt in `k'
110 */
111
112 static int
cmp_salt(const krb5_salt * salt,const krb5_key_data * k)113 cmp_salt (const krb5_salt *salt, const krb5_key_data *k)
114 {
115 if (salt->salttype != (size_t)k->key_data_type[1])
116 return 1;
117 if (salt->saltvalue.length != (size_t)k->key_data_length[1])
118 return 1;
119 return memcmp (salt->saltvalue.data, k->key_data_contents[1],
120 salt->saltvalue.length);
121 }
122
123 static void
format_keytype(krb5_key_data * k,krb5_salt * def_salt,char * buf,size_t buf_len)124 format_keytype(krb5_key_data *k, krb5_salt *def_salt, char *buf, size_t buf_len)
125 {
126 krb5_error_code ret;
127 char *s;
128
129 ret = krb5_enctype_to_string (context,
130 k->key_data_type[0],
131 &s);
132 if (ret)
133 asprintf (&s, "unknown(%d)", k->key_data_type[0]);
134 strlcpy(buf, s, buf_len);
135 free(s);
136
137 strlcat(buf, "(", buf_len);
138
139 ret = krb5_salttype_to_string (context,
140 k->key_data_type[0],
141 k->key_data_type[1],
142 &s);
143 if (ret)
144 asprintf (&s, "unknown(%d)", k->key_data_type[1]);
145 strlcat(buf, s, buf_len);
146 free(s);
147
148 if (cmp_salt(def_salt, k) == 0)
149 s = strdup("");
150 else if(k->key_data_length[1] == 0)
151 s = strdup("()");
152 else
153 asprintf (&s, "(%.*s)", k->key_data_length[1],
154 (char *)k->key_data_contents[1]);
155 strlcat(buf, s, buf_len);
156 free(s);
157
158 strlcat(buf, ")", buf_len);
159 }
160
161 static void
format_field(kadm5_principal_ent_t princ,unsigned int field,unsigned int subfield,char * buf,size_t buf_len,int condensed)162 format_field(kadm5_principal_ent_t princ, unsigned int field,
163 unsigned int subfield, char *buf, size_t buf_len, int condensed)
164 {
165 switch(field) {
166 case KADM5_PRINCIPAL:
167 if(condensed)
168 krb5_unparse_name_fixed_short(context, princ->principal, buf, buf_len);
169 else
170 krb5_unparse_name_fixed(context, princ->principal, buf, buf_len);
171 break;
172
173 case KADM5_PRINC_EXPIRE_TIME:
174 time_t2str(princ->princ_expire_time, buf, buf_len, !condensed);
175 break;
176
177 case KADM5_PW_EXPIRATION:
178 time_t2str(princ->pw_expiration, buf, buf_len, !condensed);
179 break;
180
181 case KADM5_LAST_PWD_CHANGE:
182 time_t2str(princ->last_pwd_change, buf, buf_len, !condensed);
183 break;
184
185 case KADM5_MAX_LIFE:
186 deltat2str(princ->max_life, buf, buf_len);
187 break;
188
189 case KADM5_MAX_RLIFE:
190 deltat2str(princ->max_renewable_life, buf, buf_len);
191 break;
192
193 case KADM5_MOD_TIME:
194 time_t2str(princ->mod_date, buf, buf_len, !condensed);
195 break;
196
197 case KADM5_MOD_NAME:
198 if (princ->mod_name == NULL)
199 strlcpy(buf, "unknown", buf_len);
200 else if(condensed)
201 krb5_unparse_name_fixed_short(context, princ->mod_name, buf, buf_len);
202 else
203 krb5_unparse_name_fixed(context, princ->mod_name, buf, buf_len);
204 break;
205 case KADM5_ATTRIBUTES:
206 attributes2str (princ->attributes, buf, buf_len);
207 break;
208 case KADM5_KVNO:
209 snprintf(buf, buf_len, "%d", princ->kvno);
210 break;
211 case KADM5_MKVNO:
212 /* XXX libkadm5srv decrypts the keys, so mkvno is always 0. */
213 strlcpy(buf, "unknown", buf_len);
214 break;
215 case KADM5_LAST_SUCCESS:
216 time_t2str(princ->last_success, buf, buf_len, !condensed);
217 break;
218 case KADM5_LAST_FAILED:
219 time_t2str(princ->last_failed, buf, buf_len, !condensed);
220 break;
221 case KADM5_FAIL_AUTH_COUNT:
222 snprintf(buf, buf_len, "%d", princ->fail_auth_count);
223 break;
224 case KADM5_POLICY:
225 if(princ->policy != NULL)
226 strlcpy(buf, princ->policy, buf_len);
227 else
228 strlcpy(buf, "none", buf_len);
229 break;
230 case KADM5_KEY_DATA:{
231 krb5_salt def_salt;
232 int i;
233 char buf2[1024];
234 krb5_get_pw_salt (context, princ->principal, &def_salt);
235
236 *buf = '\0';
237 for (i = 0; i < princ->n_key_data; ++i) {
238 format_keytype(&princ->key_data[i], &def_salt, buf2, sizeof(buf2));
239 if(i > 0)
240 strlcat(buf, ", ", buf_len);
241 strlcat(buf, buf2, buf_len);
242 }
243 krb5_free_salt (context, def_salt);
244 break;
245 }
246 case KADM5_TL_DATA: {
247 krb5_tl_data *tl;
248
249 for (tl = princ->tl_data; tl != NULL; tl = tl->tl_data_next)
250 if ((unsigned)tl->tl_data_type == subfield)
251 break;
252 if (tl == NULL) {
253 strlcpy(buf, "", buf_len);
254 break;
255 }
256
257 switch (subfield) {
258 case KRB5_TL_PASSWORD:
259 snprintf(buf, buf_len, "\"%.*s\"",
260 (int)tl->tl_data_length,
261 (const char *)tl->tl_data_contents);
262 break;
263 case KRB5_TL_PKINIT_ACL: {
264 HDB_Ext_PKINIT_acl acl;
265 size_t size;
266 int ret;
267 size_t i;
268
269 ret = decode_HDB_Ext_PKINIT_acl(tl->tl_data_contents,
270 tl->tl_data_length,
271 &acl,
272 &size);
273 if (ret) {
274 snprintf(buf, buf_len, "failed to decode ACL");
275 break;
276 }
277
278 buf[0] = '\0';
279 for (i = 0; i < acl.len; i++) {
280 strlcat(buf, "subject: ", buf_len);
281 strlcat(buf, acl.val[i].subject, buf_len);
282 if (acl.val[i].issuer) {
283 strlcat(buf, " issuer:", buf_len);
284 strlcat(buf, *acl.val[i].issuer, buf_len);
285 }
286 if (acl.val[i].anchor) {
287 strlcat(buf, " anchor:", buf_len);
288 strlcat(buf, *acl.val[i].anchor, buf_len);
289 }
290 if (i + 1 < acl.len)
291 strlcat(buf, ", ", buf_len);
292 }
293 free_HDB_Ext_PKINIT_acl(&acl);
294 break;
295 }
296 case KRB5_TL_ALIASES: {
297 HDB_Ext_Aliases alias;
298 size_t size;
299 int ret;
300 size_t i;
301
302 ret = decode_HDB_Ext_Aliases(tl->tl_data_contents,
303 tl->tl_data_length,
304 &alias,
305 &size);
306 if (ret) {
307 snprintf(buf, buf_len, "failed to decode alias");
308 break;
309 }
310 buf[0] = '\0';
311 for (i = 0; i < alias.aliases.len; i++) {
312 char *p;
313 ret = krb5_unparse_name(context, &alias.aliases.val[i], &p);
314 if (ret)
315 break;
316 if (i > 0)
317 strlcat(buf, " ", buf_len);
318 strlcat(buf, p, buf_len);
319 free(p);
320 }
321 free_HDB_Ext_Aliases(&alias);
322 break;
323 }
324 default:
325 snprintf(buf, buf_len, "unknown type %d", subfield);
326 break;
327 }
328 break;
329 }
330 default:
331 strlcpy(buf, "<unknown>", buf_len);
332 break;
333 }
334 }
335
336 static void
print_entry_short(struct get_entry_data * data,kadm5_principal_ent_t princ)337 print_entry_short(struct get_entry_data *data, kadm5_principal_ent_t princ)
338 {
339 char buf[1024];
340 struct field_info *f;
341
342 for(f = data->chead; f != NULL; f = f->next) {
343 format_field(princ, f->ff->fieldvalue, f->ff->subvalue, buf, sizeof(buf), 1);
344 rtbl_add_column_entry_by_id(data->table, f->ff->fieldvalue, buf);
345 }
346 }
347
348 static void
print_entry_long(struct get_entry_data * data,kadm5_principal_ent_t princ)349 print_entry_long(struct get_entry_data *data, kadm5_principal_ent_t princ)
350 {
351 char buf[1024];
352 struct field_info *f;
353 int width = 0;
354
355 for(f = data->chead; f != NULL; f = f->next) {
356 int w = strlen(f->header ? f->header : f->ff->def_longheader);
357 if(w > width)
358 width = w;
359 }
360 for(f = data->chead; f != NULL; f = f->next) {
361 format_field(princ, f->ff->fieldvalue, f->ff->subvalue, buf, sizeof(buf), 0);
362 printf("%*s: %s\n", width, f->header ? f->header : f->ff->def_longheader, buf);
363 }
364 printf("\n");
365 }
366
367 static int
do_get_entry(krb5_principal principal,void * data)368 do_get_entry(krb5_principal principal, void *data)
369 {
370 kadm5_principal_ent_rec princ;
371 krb5_error_code ret;
372 struct get_entry_data *e = data;
373
374 memset(&princ, 0, sizeof(princ));
375 ret = kadm5_get_principal(kadm_handle, principal,
376 &princ,
377 e->mask | e->extra_mask);
378 if(ret)
379 return ret;
380 else {
381 (e->format)(e, &princ);
382 kadm5_free_principal_ent(kadm_handle, &princ);
383 }
384 return 0;
385 }
386
387 static void
free_columns(struct get_entry_data * data)388 free_columns(struct get_entry_data *data)
389 {
390 struct field_info *f, *next;
391 for(f = data->chead; f != NULL; f = next) {
392 free(f->header);
393 next = f->next;
394 free(f);
395 }
396 data->chead = NULL;
397 data->ctail = &data->chead;
398 }
399
400 static int
setup_columns(struct get_entry_data * data,const char * column_info)401 setup_columns(struct get_entry_data *data, const char *column_info)
402 {
403 char buf[1024], *q;
404 char *field, *header;
405 struct field_name *f;
406
407 while(strsep_copy(&column_info, ",", buf, sizeof(buf)) != -1) {
408 q = buf;
409 field = strsep(&q, "=");
410 header = strsep(&q, "=");
411 for(f = field_names; f->fieldname != NULL; f++) {
412 if(strcasecmp(field, f->fieldname) == 0) {
413 add_column(data, f, header);
414 break;
415 }
416 }
417 if(f->fieldname == NULL) {
418 krb5_warnx(context, "unknown field name \"%s\"", field);
419 free_columns(data);
420 return -1;
421 }
422 }
423 return 0;
424 }
425
426 static int
do_list_entry(krb5_principal principal,void * data)427 do_list_entry(krb5_principal principal, void *data)
428 {
429 char buf[1024];
430 krb5_error_code ret;
431
432 ret = krb5_unparse_name_fixed_short(context, principal, buf, sizeof(buf));
433 if (ret != 0)
434 return ret;
435 printf("%s\n", buf);
436 return 0;
437 }
438
439 static int
listit(const char * funcname,int argc,char ** argv)440 listit(const char *funcname, int argc, char **argv)
441 {
442 int i;
443 krb5_error_code ret, saved_ret = 0;
444
445 for (i = 0; i < argc; i++) {
446 ret = foreach_principal(argv[i], do_list_entry, funcname, NULL);
447 if (saved_ret == 0 && ret != 0)
448 saved_ret = ret;
449 }
450 return saved_ret != 0;
451 }
452
453 #define DEFAULT_COLUMNS_SHORT "principal,princ_expire_time,pw_expiration,last_pwd_change,max_life,max_rlife"
454 #define DEFAULT_COLUMNS_LONG "principal,princ_expire_time,pw_expiration,last_pwd_change,max_life,max_rlife,kvno,mkvno,last_success,last_failed,fail_auth_count,mod_time,mod_name,attributes,keytypes,pkinit-acl,aliases"
455
456 static int
getit(struct get_options * opt,const char * name,int argc,char ** argv)457 getit(struct get_options *opt, const char *name, int argc, char **argv)
458 {
459 int i;
460 krb5_error_code ret;
461 struct get_entry_data data;
462
463 if(opt->long_flag == -1 && (opt->short_flag == 1 || opt->terse_flag == 1))
464 opt->long_flag = 0;
465 if(opt->short_flag == -1 && (opt->long_flag == 1 || opt->terse_flag == 1))
466 opt->short_flag = 0;
467 if(opt->terse_flag == -1 && (opt->long_flag == 1 || opt->short_flag == 1))
468 opt->terse_flag = 0;
469 if(opt->long_flag == 0 && opt->short_flag == 0 && opt->terse_flag == 0)
470 opt->short_flag = 1;
471
472 if (opt->terse_flag)
473 return listit(name, argc, argv);
474
475 data.table = NULL;
476 data.chead = NULL;
477 data.ctail = &data.chead;
478 data.mask = 0;
479 data.extra_mask = 0;
480
481 if(opt->short_flag) {
482 data.table = rtbl_create();
483 rtbl_set_separator(data.table, " ");
484 data.format = print_entry_short;
485 } else
486 data.format = print_entry_long;
487 if(opt->column_info_string == NULL) {
488 if(opt->long_flag)
489 ret = setup_columns(&data, DEFAULT_COLUMNS_LONG);
490 else
491 ret = setup_columns(&data, DEFAULT_COLUMNS_SHORT);
492 } else
493 ret = setup_columns(&data, opt->column_info_string);
494
495 if(ret != 0) {
496 if(data.table != NULL)
497 rtbl_destroy(data.table);
498 return 0;
499 }
500
501 for(i = 0; i < argc; i++)
502 ret = foreach_principal(argv[i], do_get_entry, name, &data);
503
504 if(data.table != NULL) {
505 rtbl_format(data.table, stdout);
506 rtbl_destroy(data.table);
507 }
508 free_columns(&data);
509 return ret != 0;
510 }
511
512 int
get_entry(struct get_options * opt,int argc,char ** argv)513 get_entry(struct get_options *opt, int argc, char **argv)
514 {
515 return getit(opt, "get", argc, argv);
516 }
517
518 int
list_princs(struct list_options * opt,int argc,char ** argv)519 list_princs(struct list_options *opt, int argc, char **argv)
520 {
521 if(sizeof(struct get_options) != sizeof(struct list_options)) {
522 krb5_warnx(context, "programmer error: sizeof(struct get_options) != sizeof(struct list_options)");
523 return 0;
524 }
525 return getit((struct get_options*)opt, "list", argc, argv);
526 }
527