2 * Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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.
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.
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
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "kadmin_locl.h"
35 #include <krb5-private.h>
40 kadmind_dispatch(void *kadm_handle, krb5_boolean initial,
41 krb5_data *in, krb5_data *out)
44 int32_t cmd, mask, tmp;
45 kadm5_server_context *context = kadm_handle;
46 char client[128], name[128], name2[128];
48 krb5_principal princ, princ2;
49 kadm5_principal_ent_rec ent;
51 krb5_keyblock *new_keys;
57 krb5_unparse_name_fixed(context->context, context->caller,
58 client, sizeof(client));
60 sp = krb5_storage_from_data(in);
62 krb5_ret_int32(sp, &cmd);
66 ret = krb5_ret_principal(sp, &princ);
69 ret = krb5_ret_int32(sp, &mask);
71 krb5_free_principal(context->context, princ);
74 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
75 krb5_warnx(context->context, "%s: %s %s", client, op, name);
76 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_GET, princ);
78 krb5_free_principal(context->context, princ);
81 ret = kadm5_get_principal(kadm_handle, princ, &ent, mask);
82 krb5_storage_free(sp);
83 sp = krb5_storage_emem();
84 krb5_store_int32(sp, ret);
86 kadm5_store_principal_ent(sp, &ent);
87 kadm5_free_principal_ent(kadm_handle, &ent);
89 krb5_free_principal(context->context, princ);
94 ret = krb5_ret_principal(sp, &princ);
97 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
98 krb5_warnx(context->context, "%s: %s %s", client, op, name);
99 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_DELETE, princ);
101 krb5_free_principal(context->context, princ);
104 ret = kadm5_delete_principal(kadm_handle, princ);
105 krb5_free_principal(context->context, princ);
106 krb5_storage_free(sp);
107 sp = krb5_storage_emem();
108 krb5_store_int32(sp, ret);
113 ret = kadm5_ret_principal_ent(sp, &ent);
116 ret = krb5_ret_int32(sp, &mask);
118 kadm5_free_principal_ent(context->context, &ent);
121 ret = krb5_ret_string(sp, &password);
123 kadm5_free_principal_ent(context->context, &ent);
126 krb5_unparse_name_fixed(context->context, ent.principal,
128 krb5_warnx(context->context, "%s: %s %s", client, op, name);
129 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_ADD,
132 kadm5_free_principal_ent(context->context, &ent);
133 memset(password, 0, strlen(password));
137 ret = kadm5_create_principal(kadm_handle, &ent,
139 kadm5_free_principal_ent(kadm_handle, &ent);
140 memset(password, 0, strlen(password));
142 krb5_storage_free(sp);
143 sp = krb5_storage_emem();
144 krb5_store_int32(sp, ret);
149 ret = kadm5_ret_principal_ent(sp, &ent);
152 ret = krb5_ret_int32(sp, &mask);
154 kadm5_free_principal_ent(context, &ent);
157 krb5_unparse_name_fixed(context->context, ent.principal,
159 krb5_warnx(context->context, "%s: %s %s", client, op, name);
160 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_MODIFY,
163 kadm5_free_principal_ent(context, &ent);
166 ret = kadm5_modify_principal(kadm_handle, &ent, mask);
167 kadm5_free_principal_ent(kadm_handle, &ent);
168 krb5_storage_free(sp);
169 sp = krb5_storage_emem();
170 krb5_store_int32(sp, ret);
175 ret = krb5_ret_principal(sp, &princ);
178 ret = krb5_ret_principal(sp, &princ2);
180 krb5_free_principal(context->context, princ);
183 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
184 krb5_unparse_name_fixed(context->context, princ2, name2, sizeof(name2));
185 krb5_warnx(context->context, "%s: %s %s -> %s",
186 client, op, name, name2);
187 ret = _kadm5_acl_check_permission(context,
190 || _kadm5_acl_check_permission(context,
194 krb5_free_principal(context->context, princ);
197 ret = kadm5_rename_principal(kadm_handle, princ, princ2);
198 krb5_free_principal(context->context, princ);
199 krb5_free_principal(context->context, princ2);
200 krb5_storage_free(sp);
201 sp = krb5_storage_emem();
202 krb5_store_int32(sp, ret);
207 ret = krb5_ret_principal(sp, &princ);
210 ret = krb5_ret_string(sp, &password);
212 krb5_free_principal(context->context, princ);
215 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
216 krb5_warnx(context->context, "%s: %s %s", client, op, name);
219 * The change is allowed if at least one of:
220 * a) it's for the principal him/herself and this was an initial ticket
221 * b) the user is on the CPW ACL.
225 && krb5_principal_compare (context->context, context->caller,
229 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
232 krb5_free_principal(context->context, princ);
235 ret = kadm5_chpass_principal(kadm_handle, princ, password);
236 krb5_free_principal(context->context, princ);
237 memset(password, 0, strlen(password));
239 krb5_storage_free(sp);
240 sp = krb5_storage_emem();
241 krb5_store_int32(sp, ret);
244 case kadm_chpass_with_key:{
246 krb5_key_data *key_data;
249 op = "CHPASS_WITH_KEY";
250 ret = krb5_ret_principal(sp, &princ);
253 ret = krb5_ret_int32(sp, &n_key_data);
255 krb5_free_principal(context->context, princ);
259 key_data = malloc (n_key_data * sizeof(*key_data));
260 if (key_data == NULL) {
262 krb5_free_principal(context->context, princ);
266 for (i = 0; i < n_key_data; ++i) {
267 ret = kadm5_ret_key_data (sp, &key_data[i]);
271 kadm5_free_key_data (context, &dummy, key_data);
273 krb5_free_principal(context->context, princ);
278 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
279 krb5_warnx(context->context, "%s: %s %s", client, op, name);
282 * The change is allowed if at least one of:
283 * a) it's for the principal him/herself and this was an initial ticket
284 * b) the user is on the CPW ACL.
288 && krb5_principal_compare (context->context, context->caller,
292 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
295 int16_t dummy = n_key_data;
297 kadm5_free_key_data (context, &dummy, key_data);
299 krb5_free_principal(context->context, princ);
302 ret = kadm5_chpass_principal_with_key(kadm_handle, princ,
303 n_key_data, key_data);
305 int16_t dummy = n_key_data;
306 kadm5_free_key_data (context, &dummy, key_data);
309 krb5_free_principal(context->context, princ);
310 krb5_storage_free(sp);
311 sp = krb5_storage_emem();
312 krb5_store_int32(sp, ret);
317 ret = krb5_ret_principal(sp, &princ);
320 krb5_unparse_name_fixed(context->context, princ, name, sizeof(name));
321 krb5_warnx(context->context, "%s: %s %s", client, op, name);
323 * The change is allowed if at least one of:
324 * a) it's for the principal him/herself and this was an initial ticket
325 * b) the user is on the CPW ACL.
329 && krb5_principal_compare (context->context, context->caller,
333 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_CPW, princ);
336 krb5_free_principal(context->context, princ);
339 ret = kadm5_randkey_principal(kadm_handle, princ,
341 krb5_free_principal(context->context, princ);
342 krb5_storage_free(sp);
343 sp = krb5_storage_emem();
344 krb5_store_int32(sp, ret);
347 krb5_store_int32(sp, n_keys);
348 for(i = 0; i < n_keys; i++){
349 krb5_store_keyblock(sp, new_keys[i]);
350 krb5_free_keyblock_contents(context->context, &new_keys[i]);
355 case kadm_get_privs:{
356 ret = kadm5_get_privs(kadm_handle, &mask);
357 krb5_storage_free(sp);
358 sp = krb5_storage_emem();
359 krb5_store_int32(sp, ret);
361 krb5_store_int32(sp, mask);
364 case kadm_get_princs:{
366 ret = krb5_ret_int32(sp, &tmp);
370 ret = krb5_ret_string(sp, &exp);
375 krb5_warnx(context->context, "%s: %s %s", client, op, exp ? exp : "*");
376 ret = _kadm5_acl_check_permission(context, KADM5_PRIV_LIST, NULL);
381 ret = kadm5_get_principals(kadm_handle, exp, &princs, &n_princs);
383 krb5_storage_free(sp);
384 sp = krb5_storage_emem();
385 krb5_store_int32(sp, ret);
388 krb5_store_int32(sp, n_princs);
389 for(i = 0; i < n_princs; i++)
390 krb5_store_string(sp, princs[i]);
391 kadm5_free_name_list(kadm_handle, princs, &n_princs);
396 krb5_warnx(context->context, "%s: UNKNOWN OP %d", client, cmd);
397 krb5_storage_free(sp);
398 sp = krb5_storage_emem();
399 krb5_store_int32(sp, KADM5_FAILURE);
402 krb5_storage_to_data(sp, out);
403 krb5_storage_free(sp);
406 krb5_warn(context->context, ret, "%s", op);
407 sp->seek(sp, 0, SEEK_SET);
408 krb5_store_int32(sp, ret);
409 krb5_storage_to_data(sp, out);
410 krb5_storage_free(sp);
415 v5_loop (krb5_context context,
416 krb5_auth_context ac,
417 krb5_boolean initial,
425 doing_useful_work = 0;
428 ret = krb5_read_priv_message(context, ac, &fd, &in);
429 if(ret == HEIM_ERR_EOF)
432 krb5_err(context, 1, ret, "krb5_read_priv_message");
433 doing_useful_work = 1;
434 kadmind_dispatch(kadm_handle, initial, &in, &out);
436 ret = krb5_write_priv_message(context, ac, &fd, &out);
438 krb5_err(context, 1, ret, "krb5_write_priv_message");
443 match_appl_version(void *data, const char *appl_version)
446 if(sscanf(appl_version, "KADM0.%u", &minor) != 1)
448 *(unsigned*)data = minor;
453 handle_v5(krb5_context context,
454 krb5_auth_context ac,
460 u_char version[sizeof(KRB5_SENDAUTH_VERSION)];
466 krb5_boolean initial;
468 unsigned kadm_version;
469 kadm5_config_params realm_params;
471 if (len != sizeof(KRB5_SENDAUTH_VERSION))
472 krb5_errx(context, 1, "bad sendauth len %d", len);
473 n = krb5_net_read(context, &fd, version, len);
475 krb5_err (context, 1, errno, "reading sendauth version");
477 krb5_errx (context, 1, "EOF reading sendauth version");
478 if(memcmp(version, KRB5_SENDAUTH_VERSION, len) != 0)
479 krb5_errx(context, 1, "bad sendauth version %.8s", version);
481 ret = krb5_recvauth_match_version(context, &ac, &fd,
482 match_appl_version, &kadm_version,
483 NULL, KRB5_RECVAUTH_IGNORE_VERSION,
485 if(ret == KRB5_KT_NOTFOUND)
486 krb5_errx(context, 1, "krb5_recvauth: key no found");
488 krb5_err(context, 1, ret, "krb5_recvauth");
490 ret = krb5_unparse_name (context, ticket->server, &server_name);
492 krb5_err (context, 1, ret, "krb5_unparse_name");
494 if (strncmp (server_name, KADM5_ADMIN_SERVICE,
495 strlen(KADM5_ADMIN_SERVICE)) != 0)
496 krb5_errx (context, 1, "ticket for strange principal (%s)",
501 memset(&realm_params, 0, sizeof(realm_params));
503 if(kadm_version == 1) {
505 ret = krb5_read_priv_message(context, ac, &fd, ¶ms);
507 krb5_err(context, 1, ret, "krb5_read_priv_message");
508 _kadm5_unmarshal_params(context, ¶ms, &realm_params);
511 initial = ticket->ticket.flags.initial;
512 ret = krb5_unparse_name(context, ticket->client, &client);
514 krb5_err (context, 1, ret, "krb5_unparse_name");
515 krb5_free_ticket (context, ticket);
516 ret = kadm5_init_with_password_ctx(context,
524 krb5_err (context, 1, ret, "kadm5_init_with_password_ctx");
525 v5_loop (context, ac, initial, kadm_handle, fd);
529 kadmind_loop(krb5_context context,
530 krb5_auth_context ac,
534 unsigned char tmp[4];
538 n = krb5_net_read(context, &fd, tmp, 4);
542 krb5_err(context, 1, errno, "read");
543 _krb5_get_int(tmp, &len, 4);
544 if(len > 0xffff && (len & 0xffff) == ('K' << 8) + 'A') {
547 handle_v4(context, keytab, len, fd);
549 krb5_errx(context, 1, "packet appears to be version 4");
552 handle_v5(context, ac, keytab, len, fd);