1/*	$NetBSD: get.c,v 1.1.1.1 2011/04/13 18:14:35 elric Exp $	*/
2
3/*
4 * Copyright (c) 1997-2006 Kungliga Tekniska H��gskolan
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
41static 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
72struct field_info {
73    struct field_name *ff;
74    char *header;
75    struct field_info *next;
76};
77
78struct 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
86static int
87add_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
112static int
113cmp_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
123static void
124format_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
161static void
162format_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
336static void
337print_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
348static void
349print_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
367static int
368do_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
387static void
388free_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
400static int
401setup_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
426static int
427do_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
439static int
440listit(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
456static int
457getit(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
512int
513get_entry(struct get_options *opt, int argc, char **argv)
514{
515    return getit(opt, "get", argc, argv);
516}
517
518int
519list_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