2 * Copyright (c) 1997 - 2003 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
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
34 #include "kadm5_locl.h"
35 #include <sys/types.h>
36 #include <sys/socket.h>
37 #include <netinet/in.h>
40 RCSID("$Id: init_c.c,v 1.45.2.1 2003/12/21 22:48:13 lha Exp $");
43 set_funcs(kadm5_client_context *c)
45 #define SET(C, F) (C)->funcs.F = kadm5 ## _c_ ## F
46 SET(c, chpass_principal);
47 SET(c, chpass_principal_with_key);
48 SET(c, create_principal);
49 SET(c, delete_principal);
52 SET(c, get_principal);
53 SET(c, get_principals);
55 SET(c, modify_principal);
56 SET(c, randkey_principal);
57 SET(c, rename_principal);
61 _kadm5_c_init_context(kadm5_client_context **ctx,
62 kadm5_config_params *params,
68 *ctx = malloc(sizeof(**ctx));
71 memset(*ctx, 0, sizeof(**ctx));
72 krb5_add_et_list (context, initialize_kadm5_error_table_r);
74 (*ctx)->context = context;
75 if(params->mask & KADM5_CONFIG_REALM) {
77 (*ctx)->realm = strdup(params->realm);
78 if ((*ctx)->realm == NULL)
81 ret = krb5_get_default_realm((*ctx)->context, &(*ctx)->realm);
86 if(params->mask & KADM5_CONFIG_ADMIN_SERVER)
87 (*ctx)->admin_server = strdup(params->admin_server);
91 ret = krb5_get_krb_admin_hst (context, &(*ctx)->realm, &hostlist);
97 (*ctx)->admin_server = strdup(*hostlist);
98 krb5_free_krbhst (context, hostlist);
101 if ((*ctx)->admin_server == NULL) {
106 colon = strchr ((*ctx)->admin_server, ':');
110 (*ctx)->kadmind_port = 0;
112 if(params->mask & KADM5_CONFIG_KADMIND_PORT)
113 (*ctx)->kadmind_port = params->kadmind_port;
114 else if (colon != NULL) {
117 (*ctx)->kadmind_port = htons(strtol (colon, &end, 0));
119 if ((*ctx)->kadmind_port == 0)
120 (*ctx)->kadmind_port = krb5_getportbyname (context, "kerberos-adm",
125 static krb5_error_code
126 get_kadm_ticket(krb5_context context,
128 krb5_principal client,
129 const char *server_name)
134 memset(&in, 0, sizeof(in));
136 ret = krb5_parse_name(context, server_name, &in.server);
139 ret = krb5_get_credentials(context, 0, id, &in, &out);
141 krb5_free_creds(context, out);
142 krb5_free_principal(context, in.server);
146 static krb5_error_code
147 get_new_cache(krb5_context context,
148 krb5_principal client,
149 const char *password,
150 krb5_prompter_fct prompter,
152 const char *server_name,
153 krb5_ccache *ret_cache)
157 krb5_get_init_creds_opt opt;
160 krb5_get_init_creds_opt_init (&opt);
162 krb5_get_init_creds_opt_set_default_flags(context, "kadmin",
163 krb5_principal_get_realm(context,
168 krb5_get_init_creds_opt_set_forwardable (&opt, FALSE);
169 krb5_get_init_creds_opt_set_proxiable (&opt, FALSE);
171 if(password == NULL && prompter == NULL) {
174 ret = krb5_kt_default(context, &kt);
176 ret = krb5_kt_resolve(context, keytab, &kt);
179 ret = krb5_get_init_creds_keytab (context,
186 krb5_kt_close(context, kt);
188 ret = krb5_get_init_creds_password (context,
201 case KRB5_LIBOS_PWDINTR: /* don't print anything if it was just C-c:ed */
202 case KRB5KRB_AP_ERR_BAD_INTEGRITY:
203 case KRB5KRB_AP_ERR_MODIFIED:
204 return KADM5_BAD_PASSWORD;
208 ret = krb5_cc_gen_new(context, &krb5_mcc_ops, &id);
211 ret = krb5_cc_initialize (context, id, cred.client);
214 ret = krb5_cc_store_cred (context, id, &cred);
217 krb5_free_creds_contents (context, &cred);
222 static krb5_error_code
223 get_cred_cache(krb5_context context,
224 const char *client_name,
225 const char *server_name,
226 const char *password,
227 krb5_prompter_fct prompter,
230 krb5_ccache *ret_cache)
233 krb5_ccache id = NULL;
234 krb5_principal default_client = NULL, client = NULL;
236 /* treat empty password as NULL */
237 if(password && *password == '\0')
239 if(server_name == NULL)
240 server_name = KADM5_ADMIN_SERVICE;
242 if(client_name != NULL) {
243 ret = krb5_parse_name(context, client_name, &client);
248 if(password != NULL || prompter != NULL) {
249 /* get principal from default cache, ok if this doesn't work */
250 ret = krb5_cc_default(context, &id);
252 ret = krb5_cc_get_principal(context, id, &default_client);
254 krb5_cc_close(context, id);
257 const char *name, *inst;
259 name = krb5_principal_get_comp_string(context,
261 inst = krb5_principal_get_comp_string(context,
263 if(inst == NULL || strcmp(inst, "admin") != 0) {
264 ret = krb5_make_principal(context, &tmp, NULL,
265 name, "admin", NULL);
267 krb5_free_principal(context, default_client);
268 krb5_cc_close(context, id);
271 krb5_free_principal(context, default_client);
272 default_client = tmp;
273 krb5_cc_close(context, id);
279 if (client != NULL) {
280 /* A client was specified by the caller. */
281 if (default_client != NULL) {
282 krb5_free_principal(context, default_client);
283 default_client = NULL;
286 else if (default_client != NULL)
287 /* No client was specified by the caller, but we have a
288 * client from the default credentials cache.
290 client = default_client;
292 /* No client was specified by the caller and we cannot determine
293 * the client from a credentials cache.
297 user = get_default_username ();
300 return KADM5_FAILURE;
301 ret = krb5_make_principal(context, &client,
302 NULL, user, "admin", NULL);
306 krb5_cc_close(context, id);
310 } else if(ccache != NULL)
313 if(id && (default_client == NULL ||
314 krb5_principal_compare(context, client, default_client))) {
315 ret = get_kadm_ticket(context, id, client, server_name);
318 krb5_free_principal(context, default_client);
319 if (default_client != client)
320 krb5_free_principal(context, client);
324 /* couldn't get ticket from cache */
327 /* get creds via AS request */
329 krb5_cc_close(context, id);
330 if (client != default_client)
331 krb5_free_principal(context, default_client);
333 ret = get_new_cache(context, client, password, prompter, keytab,
334 server_name, ret_cache);
335 krb5_free_principal(context, client);
340 kadm_connect(kadm5_client_context *ctx)
343 krb5_principal server;
346 struct addrinfo *ai, *a;
347 struct addrinfo hints;
349 char portstr[NI_MAXSERV];
350 char *hostname, *slash;
352 krb5_context context = ctx->context;
354 memset (&hints, 0, sizeof(hints));
355 hints.ai_socktype = SOCK_STREAM;
356 hints.ai_protocol = IPPROTO_TCP;
358 snprintf (portstr, sizeof(portstr), "%u", ntohs(ctx->kadmind_port));
360 hostname = ctx->admin_server;
361 slash = strchr (hostname, '/');
363 hostname = slash + 1;
365 error = getaddrinfo (hostname, portstr, &hints, &ai);
367 return KADM5_BAD_SERVER_NAME;
369 for (a = ai; a != NULL; a = a->ai_next) {
370 s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
373 if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
374 krb5_warn (context, errno, "connect(%s)", hostname);
382 krb5_warnx (context, "failed to contact %s", hostname);
383 return KADM5_FAILURE;
385 ret = get_cred_cache(context, ctx->client_name, ctx->service_name,
386 NULL, ctx->prompter, ctx->keytab,
396 asprintf(&service_name, "%s@%s", KADM5_ADMIN_SERVICE, ctx->realm);
398 asprintf(&service_name, "%s", KADM5_ADMIN_SERVICE);
400 if (service_name == NULL) {
406 ret = krb5_parse_name(context, service_name, &server);
410 if(ctx->ccache == NULL)
411 krb5_cc_close(context, cc);
417 ret = krb5_sendauth(context, &ctx->ac, &s,
418 KADMIN_APPL_VERSION, NULL,
419 server, AP_OPTS_MUTUAL_REQUIRED,
420 NULL, NULL, cc, NULL, NULL, NULL);
423 kadm5_config_params p;
424 memset(&p, 0, sizeof(p));
426 p.mask |= KADM5_CONFIG_REALM;
427 p.realm = ctx->realm;
429 ret = _kadm5_marshal_params(context, &p, ¶ms);
431 ret = krb5_write_priv_message(context, ctx->ac, &s, ¶ms);
432 krb5_data_free(¶ms);
436 if(ctx->ccache == NULL)
437 krb5_cc_close(context, cc);
440 } else if(ret == KRB5_SENDAUTH_BADAPPLVERS) {
443 s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
448 if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
453 ret = krb5_sendauth(context, &ctx->ac, &s,
454 KADMIN_OLD_APPL_VERSION, NULL,
455 server, AP_OPTS_MUTUAL_REQUIRED,
456 NULL, NULL, cc, NULL, NULL, NULL);
464 krb5_free_principal(context, server);
465 if(ctx->ccache == NULL)
466 krb5_cc_close(context, cc);
477 _kadm5_connect(void *handle)
479 kadm5_client_context *ctx = handle;
481 return kadm_connect(ctx);
486 kadm5_c_init_with_context(krb5_context context,
487 const char *client_name,
488 const char *password,
489 krb5_prompter_fct prompter,
492 const char *service_name,
493 kadm5_config_params *realm_params,
494 unsigned long struct_version,
495 unsigned long api_version,
496 void **server_handle)
499 kadm5_client_context *ctx;
502 ret = _kadm5_c_init_context(&ctx, realm_params, context);
506 if(password != NULL && *password != '\0') {
507 ret = get_cred_cache(context, client_name, service_name,
508 password, prompter, keytab, ccache, &cc);
510 return ret; /* XXX */
515 if (client_name != NULL)
516 ctx->client_name = strdup(client_name);
518 ctx->client_name = NULL;
519 if (service_name != NULL)
520 ctx->service_name = strdup(service_name);
522 ctx->service_name = NULL;
523 ctx->prompter = prompter;
524 ctx->keytab = keytab;
525 ctx->ccache = ccache;
526 /* maybe we should copy the params here */
529 *server_handle = ctx;
534 init_context(const char *client_name,
535 const char *password,
536 krb5_prompter_fct prompter,
539 const char *service_name,
540 kadm5_config_params *realm_params,
541 unsigned long struct_version,
542 unsigned long api_version,
543 void **server_handle)
545 krb5_context context;
547 kadm5_server_context *ctx;
549 ret = krb5_init_context(&context);
552 ret = kadm5_c_init_with_context(context,
564 krb5_free_context(context);
567 ctx = *server_handle;
573 kadm5_c_init_with_password_ctx(krb5_context context,
574 const char *client_name,
575 const char *password,
576 const char *service_name,
577 kadm5_config_params *realm_params,
578 unsigned long struct_version,
579 unsigned long api_version,
580 void **server_handle)
582 return kadm5_c_init_with_context(context,
596 kadm5_c_init_with_password(const char *client_name,
597 const char *password,
598 const char *service_name,
599 kadm5_config_params *realm_params,
600 unsigned long struct_version,
601 unsigned long api_version,
602 void **server_handle)
604 return init_context(client_name,
617 kadm5_c_init_with_skey_ctx(krb5_context context,
618 const char *client_name,
620 const char *service_name,
621 kadm5_config_params *realm_params,
622 unsigned long struct_version,
623 unsigned long api_version,
624 void **server_handle)
626 return kadm5_c_init_with_context(context,
641 kadm5_c_init_with_skey(const char *client_name,
643 const char *service_name,
644 kadm5_config_params *realm_params,
645 unsigned long struct_version,
646 unsigned long api_version,
647 void **server_handle)
649 return init_context(client_name,
662 kadm5_c_init_with_creds_ctx(krb5_context context,
663 const char *client_name,
665 const char *service_name,
666 kadm5_config_params *realm_params,
667 unsigned long struct_version,
668 unsigned long api_version,
669 void **server_handle)
671 return kadm5_c_init_with_context(context,
685 kadm5_c_init_with_creds(const char *client_name,
687 const char *service_name,
688 kadm5_config_params *realm_params,
689 unsigned long struct_version,
690 unsigned long api_version,
691 void **server_handle)
693 return init_context(client_name,
707 kadm5_init(char *client_name, char *pass,
709 kadm5_config_params *realm_params,
710 unsigned long struct_version,
711 unsigned long api_version,
712 void **server_handle)