2
* Copyright (c) 1997-2007 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
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* 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
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* 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
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34
#include "kuser_locl.h"
37
#include "krb5-v4compat.h"
41
int forwardable_flag = -1;
42
int proxiable_flag = -1;
43
int renewable_flag = -1;
46
int validate_flag = 0;
50
struct getarg_strings extra_addresses;
51
int anonymous_flag = 0;
52
char *lifetime = NULL;
53
char *renew_life = NULL;
54
char *server_str = NULL;
55
char *cred_cache = NULL;
56
char *start_str = NULL;
57
struct getarg_strings etype_str;
59
char *keytab_str = NULL;
61
#ifndef HEIMDAL_SMALLER
64
static char *krb4_cc_name;
67
char *password_file = NULL;
68
char *pk_user_id = NULL;
69
char *pk_x509_anchors = NULL;
70
int pk_use_enckey = 0;
71
static int canonicalize_flag = 0;
72
static int ok_as_delegate_flag = 0;
73
static int use_referrals_flag = 0;
74
static int windows_flag = 0;
75
static char *ntlm_domain;
78
static struct getargs args[] = {
88
#ifndef HEIMDAL_SMALLER
89
{ "524init", '4', arg_flag, &get_v4_tgt,
90
NP_("obtain version 4 TGT", "") },
92
{ "524convert", '9', arg_flag, &convert_524,
93
NP_("only convert ticket to version 4", "") },
95
{ "afslog", 0 , arg_flag, &do_afslog,
96
NP_("obtain afs tokens", "") },
98
{ "cache", 'c', arg_string, &cred_cache,
99
NP_("credentials cache", ""), "cachename" },
101
{ "forwardable", 'f', arg_flag, &forwardable_flag,
102
NP_("get forwardable tickets", "")},
104
{ "keytab", 't', arg_string, &keytab_str,
105
NP_("keytab to use", ""), "keytabname" },
107
{ "lifetime", 'l', arg_string, &lifetime,
108
NP_("lifetime of tickets", ""), "time"},
110
{ "proxiable", 'p', arg_flag, &proxiable_flag,
111
NP_("get proxiable tickets", "") },
113
{ "renew", 'R', arg_flag, &renew_flag,
114
NP_("renew TGT", "") },
116
{ "renewable", 0, arg_flag, &renewable_flag,
117
NP_("get renewable tickets", "") },
119
{ "renewable-life", 'r', arg_string, &renew_life,
120
NP_("renewable lifetime of tickets", ""), "time" },
122
{ "server", 'S', arg_string, &server_str,
123
NP_("server to get ticket for", ""), "principal" },
125
{ "start-time", 's', arg_string, &start_str,
126
NP_("when ticket gets valid", ""), "time" },
128
{ "use-keytab", 'k', arg_flag, &use_keytab,
129
NP_("get key from keytab", "") },
131
{ "validate", 'v', arg_flag, &validate_flag,
132
NP_("validate TGT", "") },
134
{ "enctypes", 'e', arg_strings, &etype_str,
135
NP_("encryption types to use", ""), "enctypes" },
137
{ "fcache-version", 0, arg_integer, &fcache_version,
138
NP_("file cache version to create", "") },
140
{ "addresses", 'A', arg_negative_flag, &addrs_flag,
141
NP_("request a ticket with no addresses", "") },
143
{ "extra-addresses",'a', arg_strings, &extra_addresses,
144
NP_("include these extra addresses", ""), "addresses" },
146
{ "anonymous", 0, arg_flag, &anonymous_flag,
147
NP_("request an anonymous ticket", "") },
149
{ "request-pac", 0, arg_flag, &pac_flag,
150
NP_("request a Windows PAC", "") },
152
{ "password-file", 0, arg_string, &password_file,
153
NP_("read the password from a file", "") },
155
{ "canonicalize",0, arg_flag, &canonicalize_flag,
156
NP_("canonicalize client principal", "") },
158
{ "pk-user", 'C', arg_string, &pk_user_id,
159
NP_("principal's public/private/certificate identifier", ""), "id" },
161
{ "x509-anchors", 'D', arg_string, &pk_x509_anchors,
162
NP_("directory with CA certificates", ""), "directory" },
164
{ "pk-use-enckey", 0, arg_flag, &pk_use_enckey,
165
NP_("Use RSA encrypted reply (instead of DH)", "") },
167
{ "ntlm-domain", 0, arg_string, &ntlm_domain,
168
NP_("NTLM domain", ""), "domain" },
170
{ "ok-as-delegate", 0, arg_flag, &ok_as_delegate_flag,
171
NP_("honor ok-as-delegate on tickets", "") },
173
{ "use-referrals", 0, arg_flag, &use_referrals_flag,
174
NP_("only use referrals, no dns canalisation", "") },
176
{ "windows", 0, arg_flag, &windows_flag,
177
NP_("get windows behavior", "") },
179
{ "version", 0, arg_flag, &version_flag },
180
{ "help", 0, arg_flag, &help_flag }
186
arg_printusage_i18n (args,
187
sizeof(args)/sizeof(*args),
190
"[principal [command]]",
195
static krb5_error_code
196
get_server(krb5_context context,
197
krb5_principal client,
199
krb5_principal *princ)
201
krb5_realm *client_realm;
203
return krb5_parse_name(context, server, princ);
205
client_realm = krb5_princ_realm (context, client);
206
return krb5_make_principal(context, princ, *client_realm,
207
KRB5_TGS_NAME, *client_realm, NULL);
210
#ifndef HEIMDAL_SMALLER
212
static krb5_error_code
213
do_524init(krb5_context context, krb5_ccache ccache,
214
krb5_creds *creds, const char *server)
218
struct credentials c;
219
krb5_creds in_creds, *real_creds;
224
krb5_principal client;
225
krb5_cc_get_principal(context, ccache, &client);
226
memset(&in_creds, 0, sizeof(in_creds));
227
ret = get_server(context, client, server, &in_creds.server);
229
krb5_free_principal(context, client);
232
in_creds.client = client;
233
ret = krb5_get_credentials(context, 0, ccache, &in_creds, &real_creds);
234
krb5_free_principal(context, client);
235
krb5_free_principal(context, in_creds.server);
239
ret = krb524_convert_creds_kdc_ccache(context, ccache, real_creds, &c);
241
krb5_warn(context, ret, "converting creds");
243
krb5_error_code tret = _krb5_krb_tf_setup(context, &c, NULL, 0);
245
krb5_warn(context, tret, "saving v4 creds");
249
krb5_free_creds(context, real_creds);
250
memset(&c, 0, sizeof(c));
258
renew_validate(krb5_context context,
266
krb5_creds in, *out = NULL;
267
krb5_kdc_flags flags;
269
memset(&in, 0, sizeof(in));
271
ret = krb5_cc_get_principal(context, cache, &in.client);
273
krb5_warn(context, ret, "krb5_cc_get_principal");
276
ret = get_server(context, in.client, server, &in.server);
278
krb5_warn(context, ret, "get_server");
284
* no need to check the error here, it's only to be
285
* friendly to the user
287
krb5_get_credentials(context, KRB5_GC_CACHED, cache, &in, &out);
291
flags.b.renewable = flags.b.renew = renew;
292
flags.b.validate = validate;
294
if (forwardable_flag != -1)
295
flags.b.forwardable = forwardable_flag;
297
flags.b.forwardable = out->flags.b.forwardable;
299
if (proxiable_flag != -1)
300
flags.b.proxiable = proxiable_flag;
302
flags.b.proxiable = out->flags.b.proxiable;
304
if (anonymous_flag != -1)
305
flags.b.request_anonymous = anonymous_flag;
307
in.times.endtime = time(NULL) + life;
310
krb5_free_creds (context, out);
315
ret = krb5_get_kdc_cred(context,
323
krb5_warn(context, ret, "krb5_get_kdc_cred");
326
ret = krb5_cc_initialize(context, cache, in.client);
328
krb5_free_creds (context, out);
329
krb5_warn(context, ret, "krb5_cc_initialize");
332
ret = krb5_cc_store_cred(context, cache, out);
334
if(ret == 0 && server == NULL) {
335
/* only do this if it's a general renew-my-tgt request */
336
#ifndef HEIMDAL_SMALLER
338
do_524init(context, cache, out, NULL);
340
if(do_afslog && k_hasafs())
341
krb5_afslog(context, cache, NULL, NULL);
344
krb5_free_creds (context, out);
346
krb5_warn(context, ret, "krb5_cc_store_cred");
350
krb5_free_cred_contents(context, &in);
354
static krb5_error_code
355
store_ntlmkey(krb5_context context, krb5_ccache id,
356
const char *domain, struct ntlm_buf *buf)
362
asprintf(&name, "ntlm-key-%s", domain);
364
krb5_clear_error_message(context);
368
data.length = buf->length;
369
data.data = buf->data;
371
ret = krb5_cc_set_config(context, id, NULL, name, &data);
376
static krb5_error_code
377
get_new_tickets(krb5_context context,
378
krb5_principal principal,
380
krb5_deltat ticket_life,
384
krb5_get_init_creds_opt *opt;
387
krb5_deltat start_time = 0;
388
krb5_deltat renew = 0;
389
char *renewstr = NULL;
390
krb5_enctype *enctype = NULL;
391
struct ntlm_buf ntlmkey;
392
krb5_ccache tempccache;
394
memset(&ntlmkey, 0, sizeof(ntlmkey));
400
if (strcasecmp("STDIN", password_file) == 0)
403
f = fopen(password_file, "r");
405
krb5_errx(context, 1, "Failed to open the password file %s",
408
if (fgets(passwd, sizeof(passwd), f) == NULL)
409
krb5_errx(context, 1,
410
N_("Failed to read password from file %s", ""),
414
passwd[strcspn(passwd, "\n")] = '\0';
418
memset(&cred, 0, sizeof(cred));
420
ret = krb5_get_init_creds_opt_alloc (context, &opt);
422
krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
424
krb5_get_init_creds_opt_set_default_flags(context, "kinit",
425
krb5_principal_get_realm(context, principal), opt);
427
if(forwardable_flag != -1)
428
krb5_get_init_creds_opt_set_forwardable (opt, forwardable_flag);
429
if(proxiable_flag != -1)
430
krb5_get_init_creds_opt_set_proxiable (opt, proxiable_flag);
431
if(anonymous_flag != -1)
432
krb5_get_init_creds_opt_set_anonymous (opt, anonymous_flag);
434
krb5_get_init_creds_opt_set_pac_request(context, opt,
435
pac_flag ? TRUE : FALSE);
436
if (canonicalize_flag)
437
krb5_get_init_creds_opt_set_canonicalize(context, opt, TRUE);
439
ret = krb5_get_init_creds_opt_set_pkinit(context, opt,
445
pk_use_enckey ? 2 : 0,
450
krb5_err(context, 1, ret, "krb5_get_init_creds_opt_set_pkinit");
453
if (addrs_flag != -1)
454
krb5_get_init_creds_opt_set_addressless(context, opt,
455
addrs_flag ? FALSE : TRUE);
457
if (renew_life == NULL && renewable_flag)
458
renewstr = "1 month";
460
renewstr = renew_life;
462
renew = parse_time (renewstr, "s");
464
errx (1, "unparsable time: %s", renewstr);
466
krb5_get_init_creds_opt_set_renew_life (opt, renew);
470
krb5_get_init_creds_opt_set_tkt_life (opt, ticket_life);
473
int tmp = parse_time (start_str, "s");
475
errx (1, N_("unparsable time: %s", ""), start_str);
480
if(etype_str.num_strings) {
483
enctype = malloc(etype_str.num_strings * sizeof(*enctype));
485
errx(1, "out of memory");
486
for(i = 0; i < etype_str.num_strings; i++) {
487
ret = krb5_string_to_enctype(context,
488
etype_str.strings[i],
491
errx(1, "unrecognized enctype: %s", etype_str.strings[i]);
493
krb5_get_init_creds_opt_set_etype_list(opt, enctype,
494
etype_str.num_strings);
497
if(use_keytab || keytab_str) {
500
ret = krb5_kt_resolve(context, keytab_str, &kt);
502
ret = krb5_kt_default(context, &kt);
504
krb5_err (context, 1, ret, "resolving keytab");
505
ret = krb5_get_init_creds_keytab (context,
512
krb5_kt_close(context, kt);
513
} else if (pk_user_id) {
514
ret = krb5_get_init_creds_password (context,
523
} else if (!interactive) {
524
krb5_warnx(context, "Not interactive, failed to get initial ticket");
525
krb5_get_init_creds_opt_free(context, opt);
529
if (passwd[0] == '\0') {
532
krb5_unparse_name (context, principal, &p);
533
asprintf (&prompt, N_("%s's Password: ", ""), p);
536
if (UI_UTIL_read_pw_string(passwd, sizeof(passwd)-1, prompt, 0)){
537
memset(passwd, 0, sizeof(passwd));
544
ret = krb5_get_init_creds_password (context,
554
krb5_get_init_creds_opt_free(context, opt);
555
if (ntlm_domain && passwd[0])
556
heim_ntlm_nt_key(passwd, &ntlmkey);
557
memset(passwd, 0, sizeof(passwd));
562
case KRB5_LIBOS_PWDINTR: /* don't print anything if it was just C-c:ed */
564
case KRB5KRB_AP_ERR_BAD_INTEGRITY:
565
case KRB5KRB_AP_ERR_MODIFIED:
566
case KRB5KDC_ERR_PREAUTH_FAILED:
567
krb5_errx(context, 1, N_("Password incorrect", ""));
569
case KRB5KRB_AP_ERR_V4_REPLY:
570
krb5_errx(context, 1, N_("Looks like a Kerberos 4 reply", ""));
573
krb5_err(context, 1, ret, "krb5_get_init_creds");
576
if(ticket_life != 0) {
577
if(abs(cred.times.endtime - cred.times.starttime - ticket_life) > 30) {
579
unparse_time_approx(cred.times.endtime - cred.times.starttime,
581
krb5_warnx(context, N_("NOTICE: ticket lifetime is %s", ""), life);
585
if(abs(cred.times.renew_till - cred.times.starttime - renew) > 30) {
587
unparse_time_approx(cred.times.renew_till - cred.times.starttime,
590
N_("NOTICE: ticket renewable lifetime is %s", ""),
595
ret = krb5_cc_new_unique(context, krb5_cc_get_type(context, ccache),
598
krb5_err (context, 1, ret, "krb5_cc_new_unique");
600
ret = krb5_cc_initialize (context, tempccache, cred.client);
602
krb5_err (context, 1, ret, "krb5_cc_initialize");
604
ret = krb5_cc_store_cred (context, tempccache, &cred);
606
krb5_err (context, 1, ret, "krb5_cc_store_cred");
608
krb5_free_cred_contents (context, &cred);
610
ret = krb5_cc_move(context, tempccache, ccache);
612
krb5_err (context, 1, ret, "krb5_cc_move");
614
if (ntlm_domain && ntlmkey.data)
615
store_ntlmkey(context, ccache, ntlm_domain, &ntlmkey);
617
if (ok_as_delegate_flag || windows_flag || use_referrals_flag) {
621
if (ok_as_delegate_flag || windows_flag)
623
if (use_referrals_flag || windows_flag)
629
krb5_cc_set_config(context, ccache, NULL, "realm-config", &data);
640
ticket_lifetime(krb5_context context, krb5_ccache cache,
641
krb5_principal client, const char *server)
643
krb5_creds in_cred, *cred;
647
memset(&in_cred, 0, sizeof(in_cred));
649
ret = krb5_cc_get_principal(context, cache, &in_cred.client);
651
krb5_warn(context, ret, "krb5_cc_get_principal");
654
ret = get_server(context, in_cred.client, server, &in_cred.server);
656
krb5_free_principal(context, in_cred.client);
657
krb5_warn(context, ret, "get_server");
661
ret = krb5_get_credentials(context, KRB5_GC_CACHED,
662
cache, &in_cred, &cred);
663
krb5_free_principal(context, in_cred.client);
664
krb5_free_principal(context, in_cred.server);
666
krb5_warn(context, ret, "krb5_get_credentials");
669
timeout = cred->times.endtime - cred->times.starttime;
672
krb5_free_creds(context, cred);
677
krb5_context context;
679
krb5_principal principal;
680
krb5_deltat ticket_life;
684
renew_func(void *ptr)
686
struct renew_ctx *ctx = ptr;
691
if (renewable_flag) {
692
ret = renew_validate(ctx->context, renewable_flag, validate_flag,
693
ctx->ccache, server_str, ctx->ticket_life);
700
get_new_tickets(ctx->context, ctx->principal,
701
ctx->ccache, ctx->ticket_life, 0);
703
#ifndef HEIMDAL_SMALLER
704
if(get_v4_tgt || convert_524)
705
do_524init(ctx->context, ctx->ccache, NULL, server_str);
707
if(do_afslog && k_hasafs())
708
krb5_afslog(ctx->context, ctx->ccache, NULL, NULL);
710
expire = ticket_lifetime(ctx->context, ctx->ccache, ctx->principal,
716
main (int argc, char **argv)
719
krb5_context context;
721
krb5_principal principal;
723
krb5_deltat ticket_life = 0;
726
setprogname (argv[0]);
728
setlocale (LC_ALL, "");
729
#if defined(HEIMDAL_LOCALEDIR)
730
bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR);
731
textdomain("heimdal_kuser");
734
ret = krb5_init_context (&context);
735
if (ret == KRB5_CONFIG_BADFORMAT)
736
errx (1, "krb5_init_context failed to parse configuration file");
738
errx(1, "krb5_init_context failed: %d", ret);
740
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
754
if (canonicalize_flag)
755
parseflags |= KRB5_PRINCIPAL_PARSE_ENTERPRISE;
758
ret = krb5_parse_name_flags (context, argv[0], parseflags, &principal);
760
krb5_err (context, 1, ret, "krb5_parse_name");
762
ret = krb5_get_default_principal (context, &principal);
764
krb5_err (context, 1, ret, "krb5_get_default_principal");
768
krb5_set_fcache_version(context, fcache_version);
770
if(renewable_flag == -1)
771
/* this seems somewhat pointless, but whatever */
772
krb5_appdefault_boolean(context, "kinit",
773
krb5_principal_get_realm(context, principal),
774
"renewable", FALSE, &renewable_flag);
775
#ifndef HEIMDAL_SMALLER
777
krb5_appdefault_boolean(context, "kinit",
778
krb5_principal_get_realm(context, principal),
779
"krb4_get_tickets", FALSE, &get_v4_tgt);
782
krb5_appdefault_boolean(context, "kinit",
783
krb5_principal_get_realm(context, principal),
784
"afslog", TRUE, &do_afslog);
787
ret = krb5_cc_resolve(context, cred_cache, &ccache);
791
ret = krb5_cc_gen_new(context, &krb5_fcc_ops, &ccache);
793
krb5_err(context, 1, ret, "creating cred cache");
794
snprintf(s, sizeof(s), "%s:%s",
795
krb5_cc_get_type(context, ccache),
796
krb5_cc_get_name(context, ccache));
797
setenv("KRB5CCNAME", s, 1);
798
#ifndef HEIMDAL_SMALLER
801
if (asprintf(&krb4_cc_name, "%s_XXXXXX", TKT_ROOT) < 0)
802
krb5_errx(context, 1, "out of memory");
803
if((fd = mkstemp(krb4_cc_name)) >= 0) {
805
setenv("KRBTKFILE", krb4_cc_name, 1);
813
ret = krb5_cc_cache_match(context, principal, &ccache);
815
ret = krb5_cc_default (context, &ccache);
819
krb5_err (context, 1, ret, N_("resolving credentials cache", ""));
821
if(argc > 1 && k_hasafs ())
825
int tmp = parse_time (lifetime, "s");
827
errx (1, N_("unparsable time: %s", ""), lifetime);
832
if(addrs_flag == 0 && extra_addresses.num_strings > 0)
833
krb5_errx(context, 1,
834
N_("specifying both extra addresses and "
835
"no addresses makes no sense", ""));
838
krb5_addresses addresses;
839
memset(&addresses, 0, sizeof(addresses));
840
for(i = 0; i < extra_addresses.num_strings; i++) {
841
ret = krb5_parse_address(context, extra_addresses.strings[i],
844
krb5_add_extra_addresses(context, &addresses);
845
krb5_free_addresses(context, &addresses);
848
free_getarg_strings(&extra_addresses);
851
if(renew_flag || validate_flag) {
852
ret = renew_validate(context, renew_flag, validate_flag,
853
ccache, server_str, ticket_life);
857
#ifndef HEIMDAL_SMALLER
860
get_new_tickets(context, principal, ccache, ticket_life, 1);
862
#ifndef HEIMDAL_SMALLER
863
if(get_v4_tgt || convert_524)
864
do_524init(context, ccache, NULL, server_str);
866
if(do_afslog && k_hasafs())
867
krb5_afslog(context, ccache, NULL, NULL);
869
struct renew_ctx ctx;
872
timeout = ticket_lifetime(context, ccache, principal, server_str) / 2;
874
ctx.context = context;
876
ctx.principal = principal;
877
ctx.ticket_life = ticket_life;
879
ret = simple_execvp_timed(argv[1], argv+1,
880
renew_func, &ctx, timeout);
881
#define EX_NOEXEC 126
882
#define EX_NOTFOUND 127
884
krb5_warnx(context, N_("permission denied: %s", ""), argv[1]);
885
else if(ret == EX_NOTFOUND)
886
krb5_warnx(context, N_("command not found: %s", ""), argv[1]);
888
krb5_cc_destroy(context, ccache);
889
#ifndef HEIMDAL_SMALLER
890
_krb5_krb_dest_tkt(context, krb4_cc_name);
895
krb5_cc_close (context, ccache);
898
krb5_free_principal(context, principal);
899
krb5_free_context (context);