1 /* ssl/kssl.c -*- mode: C; c-file-style: "eay" -*- */
2 /* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000.
4 /* ====================================================================
5 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
59 /* ssl/kssl.c -- Routines to support (& debug) Kerberos5 auth for openssl
61 ** 19990701 VRS Started.
62 ** 200011?? Jeffrey Altman, Richard Levitte
63 ** Generalized for Heimdal, Newer MIT, & Win32.
64 ** Integrated into main OpenSSL 0.9.7 snapshots.
65 ** 20010413 Simon Wilkinson, VRS
66 ** Real RFC2712 KerberosWrapper replaces AP_REQ.
69 #include <openssl/opensslconf.h>
71 #define _XOPEN_SOURCE /* glibc2 needs this to declare strptime() */
75 #include <openssl/ssl.h>
76 #include <openssl/evp.h>
77 #include <openssl/objects.h>
78 #include <openssl/krb5_asn.h>
80 #ifndef OPENSSL_NO_KRB5
83 * When OpenSSL is built on Windows, we do not want to require that
84 * the Kerberos DLLs be available in order for the OpenSSL DLLs to
85 * work. Therefore, all Kerberos routines are loaded at run time
86 * and we do not link to a .LIB file.
89 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
91 * The purpose of the following pre-processor statements is to provide
92 * compatibility with different releases of MIT Kerberos for Windows.
93 * All versions up to 1.2 used macros. But macros do not allow for
94 * a binary compatible interface for DLLs. Therefore, all macros are
95 * being replaced by function calls. The following code will allow
96 * an OpenSSL DLL built on Windows to work whether or not the macro
97 * or function form of the routines are utilized.
99 #ifdef krb5_cc_get_principal
100 #define NO_DEF_KRB5_CCACHE
101 #undef krb5_cc_get_principal
103 #define krb5_cc_get_principal kssl_krb5_cc_get_principal
105 #define krb5_free_data_contents kssl_krb5_free_data_contents
106 #define krb5_free_context kssl_krb5_free_context
107 #define krb5_auth_con_free kssl_krb5_auth_con_free
108 #define krb5_free_principal kssl_krb5_free_principal
109 #define krb5_mk_req_extended kssl_krb5_mk_req_extended
110 #define krb5_get_credentials kssl_krb5_get_credentials
111 #define krb5_cc_default kssl_krb5_cc_default
112 #define krb5_sname_to_principal kssl_krb5_sname_to_principal
113 #define krb5_init_context kssl_krb5_init_context
114 #define krb5_free_ticket kssl_krb5_free_ticket
115 #define krb5_rd_req kssl_krb5_rd_req
116 #define krb5_kt_default kssl_krb5_kt_default
117 #define krb5_kt_resolve kssl_krb5_kt_resolve
118 /* macros in mit 1.2.2 and earlier; functions in mit 1.2.3 and greater */
119 #ifndef krb5_kt_close
120 #define krb5_kt_close kssl_krb5_kt_close
121 #endif /* krb5_kt_close */
122 #ifndef krb5_kt_get_entry
123 #define krb5_kt_get_entry kssl_krb5_kt_get_entry
124 #endif /* krb5_kt_get_entry */
125 #define krb5_auth_con_init kssl_krb5_auth_con_init
127 #define krb5_principal_compare kssl_krb5_principal_compare
128 #define krb5_decrypt_tkt_part kssl_krb5_decrypt_tkt_part
129 #define krb5_timeofday kssl_krb5_timeofday
130 #define krb5_rc_default kssl_krb5_rc_default
132 #ifdef krb5_rc_initialize
133 #undef krb5_rc_initialize
135 #define krb5_rc_initialize kssl_krb5_rc_initialize
137 #ifdef krb5_rc_get_lifespan
138 #undef krb5_rc_get_lifespan
140 #define krb5_rc_get_lifespan kssl_krb5_rc_get_lifespan
142 #ifdef krb5_rc_destroy
143 #undef krb5_rc_destroy
145 #define krb5_rc_destroy kssl_krb5_rc_destroy
147 #define valid_cksumtype kssl_valid_cksumtype
148 #define krb5_checksum_size kssl_krb5_checksum_size
149 #define krb5_kt_free_entry kssl_krb5_kt_free_entry
150 #define krb5_auth_con_setrcache kssl_krb5_auth_con_setrcache
151 #define krb5_auth_con_getrcache kssl_krb5_auth_con_getrcache
152 #define krb5_get_server_rcache kssl_krb5_get_server_rcache
154 /* Prototypes for built in stubs */
155 void kssl_krb5_free_data_contents(krb5_context, krb5_data *);
156 void kssl_krb5_free_principal(krb5_context, krb5_principal );
157 krb5_error_code kssl_krb5_kt_resolve(krb5_context,
160 krb5_error_code kssl_krb5_kt_default(krb5_context,
162 krb5_error_code kssl_krb5_free_ticket(krb5_context, krb5_ticket *);
163 krb5_error_code kssl_krb5_rd_req(krb5_context, krb5_auth_context *,
164 krb5_const krb5_data *,
165 krb5_const_principal, krb5_keytab,
166 krb5_flags *,krb5_ticket **);
168 krb5_boolean kssl_krb5_principal_compare(krb5_context, krb5_const_principal,
169 krb5_const_principal);
170 krb5_error_code kssl_krb5_mk_req_extended(krb5_context,
172 krb5_const krb5_flags,
176 krb5_error_code kssl_krb5_init_context(krb5_context *);
177 void kssl_krb5_free_context(krb5_context);
178 krb5_error_code kssl_krb5_cc_default(krb5_context,krb5_ccache *);
179 krb5_error_code kssl_krb5_sname_to_principal(krb5_context,
184 krb5_error_code kssl_krb5_get_credentials(krb5_context,
185 krb5_const krb5_flags,
189 krb5_error_code kssl_krb5_auth_con_init(krb5_context,
190 krb5_auth_context *);
191 krb5_error_code kssl_krb5_cc_get_principal(krb5_context context,
193 krb5_principal *principal);
194 krb5_error_code kssl_krb5_auth_con_free(krb5_context,krb5_auth_context);
195 size_t kssl_krb5_checksum_size(krb5_context context,krb5_cksumtype ctype);
196 krb5_boolean kssl_valid_cksumtype(krb5_cksumtype ctype);
197 krb5_error_code krb5_kt_free_entry(krb5_context,krb5_keytab_entry FAR * );
198 krb5_error_code kssl_krb5_auth_con_setrcache(krb5_context,
201 krb5_error_code kssl_krb5_get_server_rcache(krb5_context,
202 krb5_const krb5_data *,
204 krb5_error_code kssl_krb5_auth_con_getrcache(krb5_context,
208 /* Function pointers (almost all Kerberos functions are _stdcall) */
209 static void (_stdcall *p_krb5_free_data_contents)(krb5_context, krb5_data *)
211 static void (_stdcall *p_krb5_free_principal)(krb5_context, krb5_principal )
213 static krb5_error_code(_stdcall *p_krb5_kt_resolve)
214 (krb5_context, krb5_const char *, krb5_keytab *)=NULL;
215 static krb5_error_code (_stdcall *p_krb5_kt_default)(krb5_context,
217 static krb5_error_code (_stdcall *p_krb5_free_ticket)(krb5_context,
219 static krb5_error_code (_stdcall *p_krb5_rd_req)(krb5_context,
221 krb5_const krb5_data *,
222 krb5_const_principal,
223 krb5_keytab, krb5_flags *,
224 krb5_ticket **)=NULL;
225 static krb5_error_code (_stdcall *p_krb5_mk_req_extended)
226 (krb5_context, krb5_auth_context *,
227 krb5_const krb5_flags, krb5_data *, krb5_creds *,
229 static krb5_error_code (_stdcall *p_krb5_init_context)(krb5_context *)=NULL;
230 static void (_stdcall *p_krb5_free_context)(krb5_context)=NULL;
231 static krb5_error_code (_stdcall *p_krb5_cc_default)(krb5_context,
233 static krb5_error_code (_stdcall *p_krb5_sname_to_principal)
234 (krb5_context, krb5_const char *, krb5_const char *,
235 krb5_int32, krb5_principal *)=NULL;
236 static krb5_error_code (_stdcall *p_krb5_get_credentials)
237 (krb5_context, krb5_const krb5_flags, krb5_ccache,
238 krb5_creds *, krb5_creds **)=NULL;
239 static krb5_error_code (_stdcall *p_krb5_auth_con_init)
240 (krb5_context, krb5_auth_context *)=NULL;
241 static krb5_error_code (_stdcall *p_krb5_cc_get_principal)
242 (krb5_context context, krb5_ccache cache,
243 krb5_principal *principal)=NULL;
244 static krb5_error_code (_stdcall *p_krb5_auth_con_free)
245 (krb5_context, krb5_auth_context)=NULL;
246 static krb5_error_code (_stdcall *p_krb5_decrypt_tkt_part)
247 (krb5_context, krb5_const krb5_keyblock *,
249 static krb5_error_code (_stdcall *p_krb5_timeofday)
250 (krb5_context context, krb5_int32 *timeret)=NULL;
251 static krb5_error_code (_stdcall *p_krb5_rc_default)
252 (krb5_context context, krb5_rcache *rc)=NULL;
253 static krb5_error_code (_stdcall *p_krb5_rc_initialize)
254 (krb5_context context, krb5_rcache rc,
255 krb5_deltat lifespan)=NULL;
256 static krb5_error_code (_stdcall *p_krb5_rc_get_lifespan)
257 (krb5_context context, krb5_rcache rc,
258 krb5_deltat *lifespan)=NULL;
259 static krb5_error_code (_stdcall *p_krb5_rc_destroy)
260 (krb5_context context, krb5_rcache rc)=NULL;
261 static krb5_boolean (_stdcall *p_krb5_principal_compare)
262 (krb5_context, krb5_const_principal, krb5_const_principal)=NULL;
263 static size_t (_stdcall *p_krb5_checksum_size)(krb5_context context,krb5_cksumtype ctype)=NULL;
264 static krb5_boolean (_stdcall *p_valid_cksumtype)(krb5_cksumtype ctype)=NULL;
265 static krb5_error_code (_stdcall *p_krb5_kt_free_entry)
266 (krb5_context,krb5_keytab_entry * )=NULL;
267 static krb5_error_code (_stdcall * p_krb5_auth_con_setrcache)(krb5_context,
270 static krb5_error_code (_stdcall * p_krb5_get_server_rcache)(krb5_context,
271 krb5_const krb5_data *,
273 static krb5_error_code (* p_krb5_auth_con_getrcache)(krb5_context,
276 static krb5_error_code (_stdcall * p_krb5_kt_close)(krb5_context context,
277 krb5_keytab keytab)=NULL;
278 static krb5_error_code (_stdcall * p_krb5_kt_get_entry)(krb5_context context,
280 krb5_const_principal principal, krb5_kvno vno,
281 krb5_enctype enctype, krb5_keytab_entry *entry)=NULL;
282 static int krb5_loaded = 0; /* only attempt to initialize func ptrs once */
284 /* Function to Load the Kerberos 5 DLL and initialize function pointers */
291 hKRB5_32 = LoadLibrary("KRB5_32");
295 (FARPROC) p_krb5_free_data_contents =
296 GetProcAddress( hKRB5_32, "krb5_free_data_contents" );
297 (FARPROC) p_krb5_free_context =
298 GetProcAddress( hKRB5_32, "krb5_free_context" );
299 (FARPROC) p_krb5_auth_con_free =
300 GetProcAddress( hKRB5_32, "krb5_auth_con_free" );
301 (FARPROC) p_krb5_free_principal =
302 GetProcAddress( hKRB5_32, "krb5_free_principal" );
303 (FARPROC) p_krb5_mk_req_extended =
304 GetProcAddress( hKRB5_32, "krb5_mk_req_extended" );
305 (FARPROC) p_krb5_get_credentials =
306 GetProcAddress( hKRB5_32, "krb5_get_credentials" );
307 (FARPROC) p_krb5_cc_get_principal =
308 GetProcAddress( hKRB5_32, "krb5_cc_get_principal" );
309 (FARPROC) p_krb5_cc_default =
310 GetProcAddress( hKRB5_32, "krb5_cc_default" );
311 (FARPROC) p_krb5_sname_to_principal =
312 GetProcAddress( hKRB5_32, "krb5_sname_to_principal" );
313 (FARPROC) p_krb5_init_context =
314 GetProcAddress( hKRB5_32, "krb5_init_context" );
315 (FARPROC) p_krb5_free_ticket =
316 GetProcAddress( hKRB5_32, "krb5_free_ticket" );
317 (FARPROC) p_krb5_rd_req =
318 GetProcAddress( hKRB5_32, "krb5_rd_req" );
319 (FARPROC) p_krb5_principal_compare =
320 GetProcAddress( hKRB5_32, "krb5_principal_compare" );
321 (FARPROC) p_krb5_decrypt_tkt_part =
322 GetProcAddress( hKRB5_32, "krb5_decrypt_tkt_part" );
323 (FARPROC) p_krb5_timeofday =
324 GetProcAddress( hKRB5_32, "krb5_timeofday" );
325 (FARPROC) p_krb5_rc_default =
326 GetProcAddress( hKRB5_32, "krb5_rc_default" );
327 (FARPROC) p_krb5_rc_initialize =
328 GetProcAddress( hKRB5_32, "krb5_rc_initialize" );
329 (FARPROC) p_krb5_rc_get_lifespan =
330 GetProcAddress( hKRB5_32, "krb5_rc_get_lifespan" );
331 (FARPROC) p_krb5_rc_destroy =
332 GetProcAddress( hKRB5_32, "krb5_rc_destroy" );
333 (FARPROC) p_krb5_kt_default =
334 GetProcAddress( hKRB5_32, "krb5_kt_default" );
335 (FARPROC) p_krb5_kt_resolve =
336 GetProcAddress( hKRB5_32, "krb5_kt_resolve" );
337 (FARPROC) p_krb5_auth_con_init =
338 GetProcAddress( hKRB5_32, "krb5_auth_con_init" );
339 (FARPROC) p_valid_cksumtype =
340 GetProcAddress( hKRB5_32, "valid_cksumtype" );
341 (FARPROC) p_krb5_checksum_size =
342 GetProcAddress( hKRB5_32, "krb5_checksum_size" );
343 (FARPROC) p_krb5_kt_free_entry =
344 GetProcAddress( hKRB5_32, "krb5_kt_free_entry" );
345 (FARPROC) p_krb5_auth_con_setrcache =
346 GetProcAddress( hKRB5_32, "krb5_auth_con_setrcache" );
347 (FARPROC) p_krb5_get_server_rcache =
348 GetProcAddress( hKRB5_32, "krb5_get_server_rcache" );
349 (FARPROC) p_krb5_auth_con_getrcache =
350 GetProcAddress( hKRB5_32, "krb5_auth_con_getrcache" );
351 (FARPROC) p_krb5_kt_close =
352 GetProcAddress( hKRB5_32, "krb5_kt_close" );
353 (FARPROC) p_krb5_kt_get_entry =
354 GetProcAddress( hKRB5_32, "krb5_kt_get_entry" );
357 /* Stubs for each function to be dynamicly loaded */
359 kssl_krb5_free_data_contents(krb5_context CO, krb5_data * data)
364 if ( p_krb5_free_data_contents )
365 p_krb5_free_data_contents(CO,data);
369 kssl_krb5_mk_req_extended (krb5_context CO,
370 krb5_auth_context * pACO,
371 krb5_const krb5_flags F,
379 if ( p_krb5_mk_req_extended )
380 return(p_krb5_mk_req_extended(CO,pACO,F,pD1,pC,pD2));
382 return KRB5KRB_ERR_GENERIC;
385 kssl_krb5_auth_con_init(krb5_context CO,
386 krb5_auth_context * pACO)
391 if ( p_krb5_auth_con_init )
392 return(p_krb5_auth_con_init(CO,pACO));
394 return KRB5KRB_ERR_GENERIC;
397 kssl_krb5_auth_con_free (krb5_context CO,
398 krb5_auth_context ACO)
403 if ( p_krb5_auth_con_free )
404 return(p_krb5_auth_con_free(CO,ACO));
406 return KRB5KRB_ERR_GENERIC;
409 kssl_krb5_get_credentials(krb5_context CO,
410 krb5_const krb5_flags F,
418 if ( p_krb5_get_credentials )
419 return(p_krb5_get_credentials(CO,F,CC,pCR,ppCR));
421 return KRB5KRB_ERR_GENERIC;
424 kssl_krb5_sname_to_principal(krb5_context CO,
425 krb5_const char * pC1,
426 krb5_const char * pC2,
428 krb5_principal * pPR)
433 if ( p_krb5_sname_to_principal )
434 return(p_krb5_sname_to_principal(CO,pC1,pC2,I,pPR));
436 return KRB5KRB_ERR_GENERIC;
440 kssl_krb5_cc_default(krb5_context CO,
446 if ( p_krb5_cc_default )
447 return(p_krb5_cc_default(CO,pCC));
449 return KRB5KRB_ERR_GENERIC;
453 kssl_krb5_init_context(krb5_context * pCO)
458 if ( p_krb5_init_context )
459 return(p_krb5_init_context(pCO));
461 return KRB5KRB_ERR_GENERIC;
465 kssl_krb5_free_context(krb5_context CO)
470 if ( p_krb5_free_context )
471 p_krb5_free_context(CO);
475 kssl_krb5_free_principal(krb5_context c, krb5_principal p)
480 if ( p_krb5_free_principal )
481 p_krb5_free_principal(c,p);
485 kssl_krb5_kt_resolve(krb5_context con,
486 krb5_const char * sz,
492 if ( p_krb5_kt_resolve )
493 return(p_krb5_kt_resolve(con,sz,kt));
495 return KRB5KRB_ERR_GENERIC;
499 kssl_krb5_kt_default(krb5_context con,
505 if ( p_krb5_kt_default )
506 return(p_krb5_kt_default(con,kt));
508 return KRB5KRB_ERR_GENERIC;
512 kssl_krb5_free_ticket(krb5_context con,
518 if ( p_krb5_free_ticket )
519 return(p_krb5_free_ticket(con,kt));
521 return KRB5KRB_ERR_GENERIC;
525 kssl_krb5_rd_req(krb5_context con, krb5_auth_context * pacon,
526 krb5_const krb5_data * data,
527 krb5_const_principal princ, krb5_keytab keytab,
528 krb5_flags * flags, krb5_ticket ** pptkt)
534 return(p_krb5_rd_req(con,pacon,data,princ,keytab,flags,pptkt));
536 return KRB5KRB_ERR_GENERIC;
540 krb5_principal_compare(krb5_context con, krb5_const_principal princ1,
541 krb5_const_principal princ2)
546 if ( p_krb5_principal_compare )
547 return(p_krb5_principal_compare(con,princ1,princ2));
549 return KRB5KRB_ERR_GENERIC;
553 krb5_decrypt_tkt_part(krb5_context con, krb5_const krb5_keyblock *keys,
559 if ( p_krb5_decrypt_tkt_part )
560 return(p_krb5_decrypt_tkt_part(con,keys,ticket));
562 return KRB5KRB_ERR_GENERIC;
566 krb5_timeofday(krb5_context con, krb5_int32 *timeret)
571 if ( p_krb5_timeofday )
572 return(p_krb5_timeofday(con,timeret));
574 return KRB5KRB_ERR_GENERIC;
578 krb5_rc_default(krb5_context con, krb5_rcache *rc)
583 if ( p_krb5_rc_default )
584 return(p_krb5_rc_default(con,rc));
586 return KRB5KRB_ERR_GENERIC;
590 krb5_rc_initialize(krb5_context con, krb5_rcache rc, krb5_deltat lifespan)
595 if ( p_krb5_rc_initialize )
596 return(p_krb5_rc_initialize(con, rc, lifespan));
598 return KRB5KRB_ERR_GENERIC;
602 krb5_rc_get_lifespan(krb5_context con, krb5_rcache rc, krb5_deltat *lifespanp)
607 if ( p_krb5_rc_get_lifespan )
608 return(p_krb5_rc_get_lifespan(con, rc, lifespanp));
610 return KRB5KRB_ERR_GENERIC;
614 krb5_rc_destroy(krb5_context con, krb5_rcache rc)
619 if ( p_krb5_rc_destroy )
620 return(p_krb5_rc_destroy(con, rc));
622 return KRB5KRB_ERR_GENERIC;
626 krb5_checksum_size(krb5_context context,krb5_cksumtype ctype)
631 if ( p_krb5_checksum_size )
632 return(p_krb5_checksum_size(context, ctype));
634 return KRB5KRB_ERR_GENERIC;
638 valid_cksumtype(krb5_cksumtype ctype)
643 if ( p_valid_cksumtype )
644 return(p_valid_cksumtype(ctype));
646 return KRB5KRB_ERR_GENERIC;
650 krb5_kt_free_entry(krb5_context con,krb5_keytab_entry * entry)
655 if ( p_krb5_kt_free_entry )
656 return(p_krb5_kt_free_entry(con,entry));
658 return KRB5KRB_ERR_GENERIC;
661 /* Structure definitions */
662 #ifndef NO_DEF_KRB5_CCACHE
664 #define krb5_x(ptr,args) ((ptr)?((*(ptr)) args):(abort(),1))
665 #define krb5_xc(ptr,args) ((ptr)?((*(ptr)) args):(abort(),(char*)0))
668 typedef krb5_pointer krb5_cc_cursor; /* cursor for sequential lookup */
670 typedef struct _krb5_ccache
673 struct _krb5_cc_ops FAR *ops;
677 typedef struct _krb5_cc_ops
681 char * (KRB5_CALLCONV *get_name)
682 (krb5_context, krb5_ccache);
683 krb5_error_code (KRB5_CALLCONV *resolve)
684 (krb5_context, krb5_ccache *, const char *);
685 krb5_error_code (KRB5_CALLCONV *gen_new)
686 (krb5_context, krb5_ccache *);
687 krb5_error_code (KRB5_CALLCONV *init)
688 (krb5_context, krb5_ccache, krb5_principal);
689 krb5_error_code (KRB5_CALLCONV *destroy)
690 (krb5_context, krb5_ccache);
691 krb5_error_code (KRB5_CALLCONV *close)
692 (krb5_context, krb5_ccache);
693 krb5_error_code (KRB5_CALLCONV *store)
694 (krb5_context, krb5_ccache, krb5_creds *);
695 krb5_error_code (KRB5_CALLCONV *retrieve)
696 (krb5_context, krb5_ccache,
697 krb5_flags, krb5_creds *, krb5_creds *);
698 krb5_error_code (KRB5_CALLCONV *get_princ)
699 (krb5_context, krb5_ccache, krb5_principal *);
700 krb5_error_code (KRB5_CALLCONV *get_first)
701 (krb5_context, krb5_ccache, krb5_cc_cursor *);
702 krb5_error_code (KRB5_CALLCONV *get_next)
703 (krb5_context, krb5_ccache,
704 krb5_cc_cursor *, krb5_creds *);
705 krb5_error_code (KRB5_CALLCONV *end_get)
706 (krb5_context, krb5_ccache, krb5_cc_cursor *);
707 krb5_error_code (KRB5_CALLCONV *remove_cred)
708 (krb5_context, krb5_ccache,
709 krb5_flags, krb5_creds *);
710 krb5_error_code (KRB5_CALLCONV *set_flags)
711 (krb5_context, krb5_ccache, krb5_flags);
713 #endif /* NO_DEF_KRB5_CCACHE */
716 kssl_krb5_cc_get_principal
717 (krb5_context context, krb5_ccache cache,
718 krb5_principal *principal)
720 if ( p_krb5_cc_get_principal )
721 return(p_krb5_cc_get_principal(context,cache,principal));
724 ((cache)->ops->get_princ,(context, cache, principal)));
728 kssl_krb5_auth_con_setrcache(krb5_context con, krb5_auth_context acon,
731 if ( p_krb5_auth_con_setrcache )
732 return(p_krb5_auth_con_setrcache(con,acon,rcache));
734 return KRB5KRB_ERR_GENERIC;
738 kssl_krb5_get_server_rcache(krb5_context con, krb5_const krb5_data * data,
739 krb5_rcache * rcache)
741 if ( p_krb5_get_server_rcache )
742 return(p_krb5_get_server_rcache(con,data,rcache));
744 return KRB5KRB_ERR_GENERIC;
748 kssl_krb5_auth_con_getrcache(krb5_context con, krb5_auth_context acon,
749 krb5_rcache * prcache)
751 if ( p_krb5_auth_con_getrcache )
752 return(p_krb5_auth_con_getrcache(con,acon, prcache));
754 return KRB5KRB_ERR_GENERIC;
758 kssl_krb5_kt_close(krb5_context context, krb5_keytab keytab)
760 if ( p_krb5_kt_close )
761 return(p_krb5_kt_close(context,keytab));
763 return KRB5KRB_ERR_GENERIC;
767 kssl_krb5_kt_get_entry(krb5_context context, krb5_keytab keytab,
768 krb5_const_principal principal, krb5_kvno vno,
769 krb5_enctype enctype, krb5_keytab_entry *entry)
771 if ( p_krb5_kt_get_entry )
772 return(p_krb5_kt_get_entry(context,keytab,principal,vno,enctype,entry));
774 return KRB5KRB_ERR_GENERIC;
776 #endif /* OPENSSL_SYS_WINDOWS || OPENSSL_SYS_WIN32 */
779 *kstring(char *string)
781 static char *null = "[NULL]";
783 return ((string == NULL)? null: string);
788 *knumber(int len, krb5_octet *contents)
790 static char buf[MAXKNUM+1];
793 BIO_snprintf(buf, MAXKNUM, "[%d] ", len);
795 for (i=0; i < len && MAXKNUM > strlen(buf)+3; i++)
797 BIO_snprintf(&buf[strlen(buf)], 3, "%02x", contents[i]);
804 /* Given KRB5 enctype (basically DES or 3DES),
805 ** return closest match openssl EVP_ encryption algorithm.
806 ** Return NULL for unknown or problematic (krb5_dk_encrypt) enctypes.
807 ** Assume ENCTYPE_*_RAW (krb5_raw_encrypt) are OK.
810 kssl_map_enc(krb5_enctype enctype)
814 case ENCTYPE_DES_HMAC_SHA1: /* EVP_des_cbc(); */
815 case ENCTYPE_DES_CBC_CRC:
816 case ENCTYPE_DES_CBC_MD4:
817 case ENCTYPE_DES_CBC_MD5:
818 case ENCTYPE_DES_CBC_RAW:
819 return EVP_des_cbc();
821 case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */
822 case ENCTYPE_DES3_CBC_SHA:
823 case ENCTYPE_DES3_CBC_RAW:
824 return EVP_des_ede3_cbc();
826 default: return NULL;
832 /* Return true:1 if p "looks like" the start of the real authenticator
833 ** described in kssl_skip_confound() below. The ASN.1 pattern is
834 ** "62 xx 30 yy" (APPLICATION-2, SEQUENCE), where xx-yy =~ 2, and
835 ** xx and yy are possibly multi-byte length fields.
837 int kssl_test_confound(unsigned char *p)
842 if (*p++ != 0x62) return 0;
843 if (*p > 0x82) return 0;
845 case 0x82: p++; xx = (*p++ << 8); xx += *p++; break;
846 case 0x81: p++; xx = *p++; break;
848 default: xx = *p++; break;
850 if (*p++ != 0x30) return 0;
851 if (*p > 0x82) return 0;
853 case 0x82: p++; len+=2; yy = (*p++ << 8); yy += *p++; break;
854 case 0x81: p++; len++; yy = *p++; break;
856 default: yy = *p++; break;
859 return (xx - len == yy)? 1: 0;
862 /* Allocate, fill, and return cksumlens array of checksum lengths.
863 ** This array holds just the unique elements from the krb5_cksumarray[].
864 ** array[n] == 0 signals end of data.
866 ** The krb5_cksumarray[] was an internal variable that has since been
867 ** replaced by a more general method for storing the data. It should
868 ** not be used. Instead we use real API calls and make a guess for
869 ** what the highest assigned CKSUMTYPE_ constant is. As of 1.2.2
870 ** it is 0x000c (CKSUMTYPE_HMAC_SHA1_DES3). So we will use 0x0010.
872 size_t *populate_cksumlens(void)
875 static size_t *cklens = NULL;
877 #ifdef KRB5_MIT_OLD11
881 #endif /* KRB5_MIT_OLD11 */
884 if (!cklens && !(cklens = (size_t *) calloc(sizeof(int),n+1))) return NULL;
886 for (i=0; i < n; i++) {
887 if (!valid_cksumtype(i)) continue; /* array has holes */
888 for (j=0; j < n; j++) {
889 if (cklens[j] == 0) {
890 cklens[j] = krb5_checksum_size(NULL,i);
891 break; /* krb5 elem was new: add */
893 if (cklens[j] == krb5_checksum_size(NULL,i)) {
894 break; /* ignore duplicate elements */
898 #endif /* KRB5CHECKAUTH */
903 /* Return pointer to start of real authenticator within authenticator, or
904 ** return NULL on error.
905 ** Decrypted authenticator looks like this:
906 ** [0 or 8 byte confounder] [4-24 byte checksum] [real authent'r]
907 ** This hackery wouldn't be necessary if MIT KRB5 1.0.6 had the
908 ** krb5_auth_con_getcksumtype() function advertised in its krb5.h.
910 unsigned char *kssl_skip_confound(krb5_enctype etype, unsigned char *a)
914 static size_t *cksumlens = NULL;
915 unsigned char *test_auth;
917 conlen = (etype)? 8: 0;
919 if (!cksumlens && !(cksumlens = populate_cksumlens())) return NULL;
920 for (i=0; (cklen = cksumlens[i]) != 0; i++)
922 test_auth = a + conlen + cklen;
923 if (kssl_test_confound(test_auth)) return test_auth;
930 /* Set kssl_err error info when reason text is a simple string
931 ** kssl_err = struct { int reason; char text[KSSL_ERR_MAX+1]; }
934 kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text)
936 if (kssl_err == NULL) return;
938 kssl_err->reason = reason;
939 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, text);
944 /* Display contents of krb5_data struct, for debugging
947 print_krb5_data(char *label, krb5_data *kdata)
951 printf("%s[%d] ", label, kdata->length);
952 for (i=0; i < kdata->length; i++)
954 if (0 && isprint((int) kdata->data[i]))
955 printf( "%c ", kdata->data[i]);
957 printf( "%02x ", (unsigned char) kdata->data[i]);
963 /* Display contents of krb5_authdata struct, for debugging
966 print_krb5_authdata(char *label, krb5_authdata **adata)
970 printf("%s, authdata==0\n", label);
973 printf("%s [%p]\n", label, adata);
977 printf("%s[at%d:%d] ", label, adata->ad_type, adata->length);
978 for (i=0; i < adata->length; i++)
980 printf((isprint(adata->contents[i]))? "%c ": "%02x",
989 /* Display contents of krb5_keyblock struct, for debugging
992 print_krb5_keyblock(char *label, krb5_keyblock *keyblk)
998 printf("%s, keyblk==0\n", label);
1002 printf("%s\n\t[et%d:%d]: ", label, keyblk->keytype,
1003 keyblk->keyvalue->length);
1004 for (i=0; i < keyblk->keyvalue->length; i++)
1006 printf("%02x",(unsigned char *)(keyblk->keyvalue->contents)[i]);
1010 printf("%s\n\t[et%d:%d]: ", label, keyblk->enctype, keyblk->length);
1011 for (i=0; i < keyblk->length; i++)
1013 printf("%02x",keyblk->contents[i]);
1020 /* Display contents of krb5_principal_data struct, for debugging
1021 ** (krb5_principal is typedef'd == krb5_principal_data *)
1024 print_krb5_princ(char *label, krb5_principal_data *princ)
1028 printf("%s principal Realm: ", label);
1029 if (princ == NULL) return;
1030 for (ui=0; ui < princ->realm.length; ui++) putchar(princ->realm.data[ui]);
1031 printf(" (nametype %d) has %d strings:\n", princ->type,princ->length);
1032 for (i=0; i < princ->length; i++)
1034 printf("\t%d [%d]: ", i, princ->data[i].length);
1035 for (uj=0; uj < princ->data[i].length; uj++) {
1036 putchar(princ->data[i].data[uj]);
1044 /* Given krb5 service (typically "kssl") and hostname in kssl_ctx,
1045 ** Return encrypted Kerberos ticket for service @ hostname.
1046 ** If authenp is non-NULL, also return encrypted authenticator,
1047 ** whose data should be freed by caller.
1048 ** (Originally was: Create Kerberos AP_REQ message for SSL Client.)
1050 ** 19990628 VRS Started; Returns Kerberos AP_REQ message.
1051 ** 20010409 VRS Modified for RFC2712; Returns enc tkt.
1052 ** 20010606 VRS May also return optional authenticator.
1055 kssl_cget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
1056 /* OUT */ krb5_data **enc_ticketp,
1057 /* UPDATE */ krb5_data *authenp,
1058 /* OUT */ KSSL_ERR *kssl_err)
1060 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1061 krb5_context krb5context = NULL;
1062 krb5_auth_context krb5auth_context = NULL;
1063 krb5_ccache krb5ccdef = NULL;
1064 krb5_creds krb5creds, *krb5credsp = NULL;
1065 krb5_data krb5_app_req;
1067 kssl_err_set(kssl_err, 0, "");
1068 memset((char *)&krb5creds, 0, sizeof(krb5creds));
1072 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1073 "No kssl_ctx defined.\n");
1076 else if (!kssl_ctx->service_host)
1078 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1079 "kssl_ctx service_host undefined.\n");
1083 if ((krb5rc = krb5_init_context(&krb5context)) != 0)
1085 BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
1086 "krb5_init_context() fails: %d\n", krb5rc);
1087 kssl_err->reason = SSL_R_KRB5_C_INIT;
1091 if ((krb5rc = krb5_sname_to_principal(krb5context,
1092 kssl_ctx->service_host,
1093 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1094 KRB5_NT_SRV_HST, &krb5creds.server)) != 0)
1096 BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
1097 "krb5_sname_to_principal() fails for %s/%s\n",
1098 kssl_ctx->service_host,
1099 (kssl_ctx->service_name)? kssl_ctx->service_name:
1101 kssl_err->reason = SSL_R_KRB5_C_INIT;
1105 if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0)
1107 kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
1108 "krb5_cc_default fails.\n");
1112 if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef,
1113 &krb5creds.client)) != 0)
1115 kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
1116 "krb5_cc_get_principal() fails.\n");
1120 if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef,
1121 &krb5creds, &krb5credsp)) != 0)
1123 kssl_err_set(kssl_err, SSL_R_KRB5_C_GET_CRED,
1124 "krb5_get_credentials() fails.\n");
1128 *enc_ticketp = &krb5credsp->ticket;
1130 kssl_ctx->enctype = krb5credsp->session.keytype;
1132 kssl_ctx->enctype = krb5credsp->keyblock.enctype;
1135 krb5rc = KRB5KRB_ERR_GENERIC;
1136 /* caller should free data of krb5_app_req */
1137 /* 20010406 VRS deleted for real KerberosWrapper
1138 ** 20010605 VRS reinstated to offer Authenticator to KerberosWrapper
1140 krb5_app_req.length = 0;
1143 krb5_data krb5in_data;
1146 KRB5_APREQBODY *ap_req;
1148 authenp->length = 0;
1149 krb5in_data.data = NULL;
1150 krb5in_data.length = 0;
1151 if ((krb5rc = krb5_mk_req_extended(krb5context,
1152 &krb5auth_context, 0, &krb5in_data, krb5credsp,
1153 &krb5_app_req)) != 0)
1155 kssl_err_set(kssl_err, SSL_R_KRB5_C_MK_REQ,
1156 "krb5_mk_req_extended() fails.\n");
1160 arlen = krb5_app_req.length;
1161 p = (unsigned char *)krb5_app_req.data;
1162 ap_req = (KRB5_APREQBODY *) d2i_KRB5_APREQ(NULL, &p, arlen);
1165 authenp->length = i2d_KRB5_ENCDATA(
1166 ap_req->authenticator, NULL);
1167 if (authenp->length &&
1168 (authenp->data = malloc(authenp->length)))
1170 unsigned char *adp = (unsigned char *)authenp->data;
1171 authenp->length = i2d_KRB5_ENCDATA(
1172 ap_req->authenticator, &adp);
1176 if (ap_req) KRB5_APREQ_free((KRB5_APREQ *) ap_req);
1177 if (krb5_app_req.length)
1178 kssl_krb5_free_data_contents(krb5context,&krb5_app_req);
1181 if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->session))
1183 kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT,
1184 "kssl_ctx_setkey() fails.\n");
1187 if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->keyblock))
1189 kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT,
1190 "kssl_ctx_setkey() fails.\n");
1197 kssl_ctx_show(kssl_ctx);
1198 #endif /* KSSL_DEBUG */
1200 if (krb5creds.client) krb5_free_principal(krb5context,
1202 if (krb5creds.server) krb5_free_principal(krb5context,
1204 if (krb5auth_context) krb5_auth_con_free(krb5context,
1206 if (krb5context) krb5_free_context(krb5context);
1211 /* Given d2i_-decoded asn1ticket, allocate and return a new krb5_ticket.
1212 ** Return Kerberos error code and kssl_err struct on error.
1213 ** Allocates krb5_ticket and krb5_principal; caller should free these.
1215 ** 20010410 VRS Implemented krb5_decode_ticket() as
1216 ** old_krb5_decode_ticket(). Missing from MIT1.0.6.
1217 ** 20010615 VRS Re-cast as openssl/asn1 d2i_*() functions.
1218 ** Re-used some of the old krb5_decode_ticket()
1219 ** code here. This tkt should alloc/free just
1220 ** like the real thing.
1223 kssl_TKT2tkt( /* IN */ krb5_context krb5context,
1224 /* IN */ KRB5_TKTBODY *asn1ticket,
1225 /* OUT */ krb5_ticket **krb5ticket,
1226 /* OUT */ KSSL_ERR *kssl_err )
1228 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1229 krb5_ticket *new5ticket = NULL;
1230 ASN1_GENERALSTRING *gstr_svc, *gstr_host;
1234 if (asn1ticket == NULL || asn1ticket->realm == NULL ||
1235 asn1ticket->sname == NULL ||
1236 sk_ASN1_GENERALSTRING_num(asn1ticket->sname->namestring) < 2)
1238 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1239 "Null field in asn1ticket.\n");
1240 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1241 return KRB5KRB_ERR_GENERIC;
1244 if ((new5ticket = (krb5_ticket *) calloc(1, sizeof(krb5_ticket)))==NULL)
1246 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1247 "Unable to allocate new krb5_ticket.\n");
1248 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1249 return ENOMEM; /* or KRB5KRB_ERR_GENERIC; */
1252 gstr_svc = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 0);
1253 gstr_host = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 1);
1255 if ((krb5rc = kssl_build_principal_2(krb5context,
1256 &new5ticket->server,
1257 asn1ticket->realm->length, (char *)asn1ticket->realm->data,
1258 gstr_svc->length, (char *)gstr_svc->data,
1259 gstr_host->length, (char *)gstr_host->data)) != 0)
1262 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1263 "Error building ticket server principal.\n");
1264 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1265 return krb5rc; /* or KRB5KRB_ERR_GENERIC; */
1268 krb5_princ_type(krb5context, new5ticket->server) =
1269 asn1ticket->sname->nametype->data[0];
1270 new5ticket->enc_part.enctype = asn1ticket->encdata->etype->data[0];
1271 new5ticket->enc_part.kvno = asn1ticket->encdata->kvno->data[0];
1272 new5ticket->enc_part.ciphertext.length =
1273 asn1ticket->encdata->cipher->length;
1274 if ((new5ticket->enc_part.ciphertext.data =
1275 calloc(1, asn1ticket->encdata->cipher->length)) == NULL)
1278 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1279 "Error allocating cipher in krb5ticket.\n");
1280 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1281 return KRB5KRB_ERR_GENERIC;
1285 memcpy(new5ticket->enc_part.ciphertext.data,
1286 asn1ticket->encdata->cipher->data,
1287 asn1ticket->encdata->cipher->length);
1290 *krb5ticket = new5ticket;
1295 /* Given krb5 service name in KSSL_CTX *kssl_ctx (typically "kssl"),
1296 ** and krb5 AP_REQ message & message length,
1297 ** Return Kerberos session key and client principle
1298 ** to SSL Server in KSSL_CTX *kssl_ctx.
1300 ** 19990702 VRS Started.
1303 kssl_sget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
1304 /* IN */ krb5_data *indata,
1305 /* OUT */ krb5_ticket_times *ttimes,
1306 /* OUT */ KSSL_ERR *kssl_err )
1308 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1309 static krb5_context krb5context = NULL;
1310 static krb5_auth_context krb5auth_context = NULL;
1311 krb5_ticket *krb5ticket = NULL;
1312 KRB5_TKTBODY *asn1ticket = NULL;
1314 krb5_keytab krb5keytab = NULL;
1315 krb5_keytab_entry kt_entry;
1316 krb5_principal krb5server;
1317 krb5_rcache rcache = NULL;
1319 kssl_err_set(kssl_err, 0, "");
1323 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1324 "No kssl_ctx defined.\n");
1329 printf("in kssl_sget_tkt(%s)\n", kstring(kssl_ctx->service_name));
1330 #endif /* KSSL_DEBUG */
1332 if (!krb5context && (krb5rc = krb5_init_context(&krb5context)))
1334 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1335 "krb5_init_context() fails.\n");
1338 if (krb5auth_context &&
1339 (krb5rc = krb5_auth_con_free(krb5context, krb5auth_context)))
1341 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1342 "krb5_auth_con_free() fails.\n");
1345 else krb5auth_context = NULL;
1346 if (!krb5auth_context &&
1347 (krb5rc = krb5_auth_con_init(krb5context, &krb5auth_context)))
1349 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1350 "krb5_auth_con_init() fails.\n");
1355 if ((krb5rc = krb5_auth_con_getrcache(krb5context, krb5auth_context,
1358 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1359 "krb5_auth_con_getrcache() fails.\n");
1363 if ((krb5rc = krb5_sname_to_principal(krb5context, NULL,
1364 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1365 KRB5_NT_SRV_HST, &krb5server)) != 0)
1367 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1368 "krb5_sname_to_principal() fails.\n");
1374 if ((krb5rc = krb5_get_server_rcache(krb5context,
1375 krb5_princ_component(krb5context, krb5server, 0),
1378 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1379 "krb5_get_server_rcache() fails.\n");
1384 if ((krb5rc = krb5_auth_con_setrcache(krb5context, krb5auth_context, rcache)))
1386 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1387 "krb5_auth_con_setrcache() fails.\n");
1392 /* kssl_ctx->keytab_file == NULL ==> use Kerberos default
1394 if (kssl_ctx->keytab_file)
1396 krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file,
1400 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1401 "krb5_kt_resolve() fails.\n");
1407 krb5rc = krb5_kt_default(krb5context,&krb5keytab);
1410 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1411 "krb5_kt_default() fails.\n");
1416 /* Actual Kerberos5 krb5_recvauth() has initial conversation here
1417 ** o check KRB5_SENDAUTH_BADAUTHVERS
1418 ** unless KRB5_RECVAUTH_SKIP_VERSION
1419 ** o check KRB5_SENDAUTH_BADAPPLVERS
1420 ** o send "0" msg if all OK
1423 /* 20010411 was using AP_REQ instead of true KerberosWrapper
1425 ** if ((krb5rc = krb5_rd_req(krb5context, &krb5auth_context,
1426 ** &krb5in_data, krb5server, krb5keytab,
1427 ** &ap_option, &krb5ticket)) != 0) { Error }
1430 p = (unsigned char *)indata->data;
1431 if ((asn1ticket = (KRB5_TKTBODY *) d2i_KRB5_TICKET(NULL, &p,
1432 (long) indata->length)) == NULL)
1434 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1435 "d2i_KRB5_TICKET() ASN.1 decode failure.\n");
1436 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1440 /* Was: krb5rc = krb5_decode_ticket(krb5in_data,&krb5ticket)) != 0) */
1441 if ((krb5rc = kssl_TKT2tkt(krb5context, asn1ticket, &krb5ticket,
1444 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1445 "Error converting ASN.1 ticket to krb5_ticket.\n");
1446 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1450 if (! krb5_principal_compare(krb5context, krb5server,
1451 krb5ticket->server)) {
1452 krb5rc = KRB5_PRINC_NOMATCH;
1453 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1454 "server principal != ticket principal\n");
1455 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1458 if ((krb5rc = krb5_kt_get_entry(krb5context, krb5keytab,
1459 krb5ticket->server, krb5ticket->enc_part.kvno,
1460 krb5ticket->enc_part.enctype, &kt_entry)) != 0) {
1461 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1462 "krb5_kt_get_entry() fails with %x.\n", krb5rc);
1463 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1466 if ((krb5rc = krb5_decrypt_tkt_part(krb5context, &kt_entry.key,
1467 krb5ticket)) != 0) {
1468 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1469 "krb5_decrypt_tkt_part() failed.\n");
1470 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1474 krb5_kt_free_entry(krb5context, &kt_entry);
1477 int i; krb5_address **paddr = krb5ticket->enc_part2->caddrs;
1478 printf("Decrypted ticket fields:\n");
1479 printf("\tflags: %X, transit-type: %X",
1480 krb5ticket->enc_part2->flags,
1481 krb5ticket->enc_part2->transited.tr_type);
1482 print_krb5_data("\ttransit-data: ",
1483 &(krb5ticket->enc_part2->transited.tr_contents));
1484 printf("\tcaddrs: %p, authdata: %p\n",
1485 krb5ticket->enc_part2->caddrs,
1486 krb5ticket->enc_part2->authorization_data);
1489 printf("\tcaddrs:\n");
1490 for (i=0; paddr[i] != NULL; i++)
1493 d.length=paddr[i]->length;
1494 d.data=paddr[i]->contents;
1495 print_krb5_data("\t\tIP: ", &d);
1498 printf("\tstart/auth/end times: %d / %d / %d\n",
1499 krb5ticket->enc_part2->times.starttime,
1500 krb5ticket->enc_part2->times.authtime,
1501 krb5ticket->enc_part2->times.endtime);
1503 #endif /* KSSL_DEBUG */
1506 krb5rc = KRB5_NO_TKT_SUPPLIED;
1507 if (!krb5ticket || !krb5ticket->enc_part2 ||
1508 !krb5ticket->enc_part2->client ||
1509 !krb5ticket->enc_part2->client->data ||
1510 !krb5ticket->enc_part2->session)
1512 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1513 "bad ticket from krb5_rd_req.\n");
1515 else if (kssl_ctx_setprinc(kssl_ctx, KSSL_CLIENT,
1516 &krb5ticket->enc_part2->client->realm,
1517 krb5ticket->enc_part2->client->data))
1519 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1520 "kssl_ctx_setprinc() fails.\n");
1522 else if (kssl_ctx_setkey(kssl_ctx, krb5ticket->enc_part2->session))
1524 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1525 "kssl_ctx_setkey() fails.\n");
1527 else if (krb5ticket->enc_part2->flags & TKT_FLG_INVALID)
1529 krb5rc = KRB5KRB_AP_ERR_TKT_INVALID;
1530 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1531 "invalid ticket from krb5_rd_req.\n");
1535 kssl_ctx->enctype = krb5ticket->enc_part.enctype;
1536 ttimes->authtime = krb5ticket->enc_part2->times.authtime;
1537 ttimes->starttime = krb5ticket->enc_part2->times.starttime;
1538 ttimes->endtime = krb5ticket->enc_part2->times.endtime;
1539 ttimes->renew_till = krb5ticket->enc_part2->times.renew_till;
1543 kssl_ctx_show(kssl_ctx);
1544 #endif /* KSSL_DEBUG */
1546 if (asn1ticket) KRB5_TICKET_free((KRB5_TICKET *) asn1ticket);
1547 if (krb5keytab) krb5_kt_close(krb5context, krb5keytab);
1548 if (krb5ticket) krb5_free_ticket(krb5context, krb5ticket);
1549 if (krb5server) krb5_free_principal(krb5context, krb5server);
1554 /* Allocate & return a new kssl_ctx struct.
1559 return ((KSSL_CTX *) calloc(1, sizeof(KSSL_CTX)));
1563 /* Frees a kssl_ctx struct and any allocated memory it holds.
1567 kssl_ctx_free(KSSL_CTX *kssl_ctx)
1569 if (kssl_ctx == NULL) return kssl_ctx;
1571 if (kssl_ctx->key) memset(kssl_ctx->key, 0,
1573 if (kssl_ctx->key) free(kssl_ctx->key);
1574 if (kssl_ctx->client_princ) free(kssl_ctx->client_princ);
1575 if (kssl_ctx->service_host) free(kssl_ctx->service_host);
1576 if (kssl_ctx->service_name) free(kssl_ctx->service_name);
1577 if (kssl_ctx->keytab_file) free(kssl_ctx->keytab_file);
1580 return (KSSL_CTX *) NULL;
1584 /* Given a (krb5_data *) entity (and optional realm),
1585 ** set the plain (char *) client_princ or service_host member
1586 ** of the kssl_ctx struct.
1589 kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which,
1590 krb5_data *realm, krb5_data *entity)
1595 if (kssl_ctx == NULL || entity == NULL) return KSSL_CTX_ERR;
1599 case KSSL_CLIENT: princ = &kssl_ctx->client_princ; break;
1600 case KSSL_SERVER: princ = &kssl_ctx->service_host; break;
1601 default: return KSSL_CTX_ERR; break;
1603 if (*princ) free(*princ);
1605 length = entity->length + ((realm)? realm->length + 2: 1);
1606 if ((*princ = calloc(1, length)) == NULL)
1607 return KSSL_CTX_ERR;
1610 strncpy(*princ, entity->data, entity->length);
1611 (*princ)[entity->length]='\0';
1614 strcat (*princ, "@");
1615 (void) strncat(*princ, realm->data, realm->length);
1616 (*princ)[entity->length+1+realm->length]='\0';
1624 /* Set one of the plain (char *) string members of the kssl_ctx struct.
1625 ** Default values should be:
1626 ** which == KSSL_SERVICE => "khost" (KRB5SVC)
1627 ** which == KSSL_KEYTAB => "/etc/krb5.keytab" (KRB5KEYTAB)
1630 kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text)
1634 if (!kssl_ctx) return KSSL_CTX_ERR;
1638 case KSSL_SERVICE: string = &kssl_ctx->service_name; break;
1639 case KSSL_SERVER: string = &kssl_ctx->service_host; break;
1640 case KSSL_CLIENT: string = &kssl_ctx->client_princ; break;
1641 case KSSL_KEYTAB: string = &kssl_ctx->keytab_file; break;
1642 default: return KSSL_CTX_ERR; break;
1644 if (*string) free(*string);
1652 if ((*string = calloc(1, strlen(text) + 1)) == NULL)
1653 return KSSL_CTX_ERR;
1655 strcpy(*string, text);
1661 /* Copy the Kerberos session key from a (krb5_keyblock *) to a kssl_ctx
1662 ** struct. Clear kssl_ctx->key if Kerberos session key is NULL.
1665 kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session)
1668 krb5_enctype enctype;
1669 krb5_octet FAR *contents = NULL;
1671 if (!kssl_ctx) return KSSL_CTX_ERR;
1675 memset(kssl_ctx->key, 0, kssl_ctx->length);
1676 free(kssl_ctx->key);
1683 length = session->keyvalue->length;
1684 enctype = session->keytype;
1685 contents = session->keyvalue->contents;
1687 length = session->length;
1688 enctype = session->enctype;
1689 contents = session->contents;
1691 kssl_ctx->enctype = enctype;
1692 kssl_ctx->length = length;
1696 kssl_ctx->enctype = ENCTYPE_UNKNOWN;
1697 kssl_ctx->length = 0;
1701 if ((kssl_ctx->key =
1702 (krb5_octet FAR *) calloc(1, kssl_ctx->length)) == NULL)
1704 kssl_ctx->length = 0;
1705 return KSSL_CTX_ERR;
1708 memcpy(kssl_ctx->key, contents, length);
1714 /* Display contents of kssl_ctx struct
1717 kssl_ctx_show(KSSL_CTX *kssl_ctx)
1721 printf("kssl_ctx: ");
1722 if (kssl_ctx == NULL)
1728 printf("%p\n", kssl_ctx);
1730 printf("\tservice:\t%s\n",
1731 (kssl_ctx->service_name)? kssl_ctx->service_name: "NULL");
1732 printf("\tclient:\t%s\n",
1733 (kssl_ctx->client_princ)? kssl_ctx->client_princ: "NULL");
1734 printf("\tserver:\t%s\n",
1735 (kssl_ctx->service_host)? kssl_ctx->service_host: "NULL");
1736 printf("\tkeytab:\t%s\n",
1737 (kssl_ctx->keytab_file)? kssl_ctx->keytab_file: "NULL");
1738 printf("\tkey [%d:%d]:\t",
1739 kssl_ctx->enctype, kssl_ctx->length);
1741 for (i=0; i < kssl_ctx->length && kssl_ctx->key; i++)
1743 printf("%02x", kssl_ctx->key[i]);
1750 kssl_keytab_is_available(KSSL_CTX *kssl_ctx)
1752 krb5_context krb5context = NULL;
1753 krb5_keytab krb5keytab = NULL;
1754 krb5_keytab_entry entry;
1755 krb5_principal princ = NULL;
1756 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1759 if ((krb5rc = krb5_init_context(&krb5context)))
1762 /* kssl_ctx->keytab_file == NULL ==> use Kerberos default
1764 if (kssl_ctx->keytab_file)
1766 krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file,
1773 krb5rc = krb5_kt_default(krb5context,&krb5keytab);
1778 /* the host key we are looking for */
1779 krb5rc = krb5_sname_to_principal(krb5context, NULL,
1780 kssl_ctx->service_name ? kssl_ctx->service_name: KRB5SVC,
1781 KRB5_NT_SRV_HST, &princ);
1783 krb5rc = krb5_kt_get_entry(krb5context, krb5keytab,
1786 0 /* IGNORE_ENCTYPE */,
1788 if ( krb5rc == KRB5_KT_NOTFOUND ) {
1791 } else if ( krb5rc )
1794 krb5_kt_free_entry(krb5context, &entry);
1798 if (krb5keytab) krb5_kt_close(krb5context, krb5keytab);
1799 if (princ) krb5_free_principal(krb5context, princ);
1800 if (krb5context) krb5_free_context(krb5context);
1805 kssl_tgt_is_available(KSSL_CTX *kssl_ctx)
1807 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1808 krb5_context krb5context = NULL;
1809 krb5_ccache krb5ccdef = NULL;
1810 krb5_creds krb5creds, *krb5credsp = NULL;
1813 memset((char *)&krb5creds, 0, sizeof(krb5creds));
1818 if (!kssl_ctx->service_host)
1821 if ((krb5rc = krb5_init_context(&krb5context)) != 0)
1824 if ((krb5rc = krb5_sname_to_principal(krb5context,
1825 kssl_ctx->service_host,
1826 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1827 KRB5_NT_SRV_HST, &krb5creds.server)) != 0)
1830 if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0)
1833 if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef,
1834 &krb5creds.client)) != 0)
1837 if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef,
1838 &krb5creds, &krb5credsp)) != 0)
1845 kssl_ctx_show(kssl_ctx);
1846 #endif /* KSSL_DEBUG */
1848 if (krb5creds.client) krb5_free_principal(krb5context, krb5creds.client);
1849 if (krb5creds.server) krb5_free_principal(krb5context, krb5creds.server);
1850 if (krb5context) krb5_free_context(krb5context);
1854 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_WIN32)
1855 void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data)
1861 #elif defined(KRB5_MIT_OLD11)
1863 krb5_xfree(data->data);
1867 krb5_free_data_contents(NULL, data);
1870 #endif /* !OPENSSL_SYS_WINDOWS && !OPENSSL_SYS_WIN32 */
1873 /* Given pointers to KerberosTime and struct tm structs, convert the
1874 ** KerberosTime string to struct tm. Note that KerberosTime is a
1875 ** ASN1_GENERALIZEDTIME value, constrained to GMT with no fractional
1876 ** seconds as defined in RFC 1510.
1877 ** Return pointer to the (partially) filled in struct tm on success,
1878 ** return NULL on failure.
1880 struct tm *k_gmtime(ASN1_GENERALIZEDTIME *gtime, struct tm *k_tm)
1884 if (!k_tm) return NULL;
1885 if (gtime == NULL || gtime->length < 14) return NULL;
1886 if (gtime->data == NULL) return NULL;
1888 p = (char *)>ime->data[14];
1890 c = *p; *p = '\0'; p -= 2; k_tm->tm_sec = atoi(p); *(p+2) = c;
1891 c = *p; *p = '\0'; p -= 2; k_tm->tm_min = atoi(p); *(p+2) = c;
1892 c = *p; *p = '\0'; p -= 2; k_tm->tm_hour = atoi(p); *(p+2) = c;
1893 c = *p; *p = '\0'; p -= 2; k_tm->tm_mday = atoi(p); *(p+2) = c;
1894 c = *p; *p = '\0'; p -= 2; k_tm->tm_mon = atoi(p)-1; *(p+2) = c;
1895 c = *p; *p = '\0'; p -= 4; k_tm->tm_year = atoi(p)-1900; *(p+4) = c;
1901 /* Helper function for kssl_validate_times().
1902 ** We need context->clockskew, but krb5_context is an opaque struct.
1903 ** So we try to sneek the clockskew out through the replay cache.
1904 ** If that fails just return a likely default (300 seconds).
1906 krb5_deltat get_rc_clockskew(krb5_context context)
1909 krb5_deltat clockskew;
1911 if (krb5_rc_default(context, &rc)) return KSSL_CLOCKSKEW;
1912 if (krb5_rc_initialize(context, rc, 0)) return KSSL_CLOCKSKEW;
1913 if (krb5_rc_get_lifespan(context, rc, &clockskew)) {
1914 clockskew = KSSL_CLOCKSKEW;
1916 (void) krb5_rc_destroy(context, rc);
1921 /* kssl_validate_times() combines (and more importantly exposes)
1922 ** the MIT KRB5 internal function krb5_validate_times() and the
1923 ** in_clock_skew() macro. The authenticator client time is checked
1924 ** to be within clockskew secs of the current time and the current
1925 ** time is checked to be within the ticket start and expire times.
1926 ** Either check may be omitted by supplying a NULL value.
1927 ** Returns 0 for valid times, SSL_R_KRB5* error codes otherwise.
1928 ** See Also: (Kerberos source)/krb5/lib/krb5/krb/valid_times.c
1931 krb5_error_code kssl_validate_times( krb5_timestamp atime,
1932 krb5_ticket_times *ttimes)
1935 krb5_timestamp start, now;
1937 krb5_context context;
1939 if ((rc = krb5_init_context(&context))) return SSL_R_KRB5_S_BAD_TICKET;
1940 skew = get_rc_clockskew(context);
1941 if ((rc = krb5_timeofday(context,&now))) return SSL_R_KRB5_S_BAD_TICKET;
1942 krb5_free_context(context);
1944 if (atime && labs(atime - now) >= skew) return SSL_R_KRB5_S_TKT_SKEW;
1946 if (! ttimes) return 0;
1948 start = (ttimes->starttime != 0)? ttimes->starttime: ttimes->authtime;
1949 if (start - now > skew) return SSL_R_KRB5_S_TKT_NYV;
1950 if ((now - ttimes->endtime) > skew) return SSL_R_KRB5_S_TKT_EXPIRED;
1953 printf("kssl_validate_times: %d |<- | %d - %d | < %d ->| %d\n",
1954 start, atime, now, skew, ttimes->endtime);
1955 #endif /* KSSL_DEBUG */
1961 /* Decode and decrypt given DER-encoded authenticator, then pass
1962 ** authenticator ctime back in *atimep (or 0 if time unavailable).
1963 ** Returns krb5_error_code and kssl_err on error. A NULL
1964 ** authenticator (authentp->length == 0) is not considered an error.
1965 ** Note that kssl_check_authent() makes use of the KRB5 session key;
1966 ** you must call kssl_sget_tkt() to get the key before calling this routine.
1968 krb5_error_code kssl_check_authent(
1969 /* IN */ KSSL_CTX *kssl_ctx,
1970 /* IN */ krb5_data *authentp,
1971 /* OUT */ krb5_timestamp *atimep,
1972 /* OUT */ KSSL_ERR *kssl_err )
1974 krb5_error_code krb5rc = 0;
1975 KRB5_ENCDATA *dec_authent = NULL;
1976 KRB5_AUTHENTBODY *auth = NULL;
1977 krb5_enctype enctype;
1978 EVP_CIPHER_CTX ciph_ctx;
1979 const EVP_CIPHER *enc = NULL;
1980 unsigned char iv[EVP_MAX_IV_LENGTH];
1981 unsigned char *p, *unenc_authent;
1982 int padl, outl, unencbufsize;
1983 struct tm tm_time, *tm_l, *tm_g;
1984 time_t now, tl, tg, tr, tz_offset;
1986 EVP_CIPHER_CTX_init(&ciph_ctx);
1988 kssl_err_set(kssl_err, 0, "");
1990 #ifndef KRB5CHECKAUTH
1993 #if KRB5CHECKAUTH == 0
1996 #endif /* KRB5CHECKAUTH */
1998 if (authentp == NULL || authentp->length == 0) return 0;
2003 printf("kssl_check_authent: authenticator[%d]:\n",authentp->length);
2005 for (ui=0; ui < authentp->length; ui++) printf("%02x ",p[ui]);
2008 #endif /* KSSL_DEBUG */
2010 unencbufsize = 2 * authentp->length;
2011 if ((unenc_authent = calloc(1, unencbufsize)) == NULL)
2013 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2014 "Unable to allocate authenticator buffer.\n");
2015 krb5rc = KRB5KRB_ERR_GENERIC;
2019 p = (unsigned char *)authentp->data;
2020 if ((dec_authent = d2i_KRB5_ENCDATA(NULL, &p,
2021 (long) authentp->length)) == NULL)
2023 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2024 "Error decoding authenticator.\n");
2025 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2029 enctype = dec_authent->etype->data[0]; /* should = kssl_ctx->enctype */
2030 #if !defined(KRB5_MIT_OLD11)
2031 switch ( enctype ) {
2032 case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */
2033 case ENCTYPE_DES3_CBC_SHA:
2034 case ENCTYPE_DES3_CBC_RAW:
2035 krb5rc = 0; /* Skip, can't handle derived keys */
2039 enc = kssl_map_enc(enctype);
2040 memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */
2044 /* Disable kssl_check_authent for ENCTYPE_DES3_CBC_SHA1.
2045 ** This enctype indicates the authenticator was encrypted
2046 ** using key-usage derived keys which openssl cannot decrypt.
2050 if (!EVP_DecryptInit_ex(&ciph_ctx, enc, NULL, kssl_ctx->key, iv))
2052 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2053 "EVP_DecryptInit_ex error decrypting authenticator.\n");
2054 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2057 if (!EVP_DecryptUpdate(&ciph_ctx, unenc_authent, &outl,
2058 dec_authent->cipher->data, dec_authent->cipher->length))
2060 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2061 "EVP_DecryptUpdate error decrypting authenticator.\n");
2062 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2065 if (outl > unencbufsize)
2067 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2068 "Buffer overflow decrypting authenticator.\n");
2069 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2072 if (!EVP_DecryptFinal_ex(&ciph_ctx, &(unenc_authent[outl]), &padl))
2074 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2075 "EVP_DecryptFinal_ex error decrypting authenticator.\n");
2076 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2080 if (outl > unencbufsize)
2082 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2083 "Buffer overflow decrypting authenticator.\n");
2084 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2087 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
2090 printf("kssl_check_authent: decrypted authenticator[%d] =\n", outl);
2091 for (padl=0; padl < outl; padl++) printf("%02x ",unenc_authent[padl]);
2093 #endif /* KSSL_DEBUG */
2095 if ((p = kssl_skip_confound(enctype, unenc_authent)) == NULL)
2097 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2098 "confounded by authenticator.\n");
2099 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2102 outl -= p - unenc_authent;
2104 if ((auth = (KRB5_AUTHENTBODY *) d2i_KRB5_AUTHENT(NULL, &p,
2105 (long) outl))==NULL)
2107 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2108 "Error decoding authenticator body.\n");
2109 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2113 memset(&tm_time,0,sizeof(struct tm));
2114 if (k_gmtime(auth->ctime, &tm_time) &&
2115 ((tr = mktime(&tm_time)) != (time_t)(-1)))
2118 tm_l = localtime(&now); tl = mktime(tm_l);
2119 tm_g = gmtime(&now); tg = mktime(tm_g);
2120 tz_offset = tg - tl;
2122 *atimep = tr - tz_offset;
2126 printf("kssl_check_authent: returns %d for client time ", *atimep);
2127 if (auth && auth->ctime && auth->ctime->length && auth->ctime->data)
2128 printf("%.*s\n", auth->ctime->length, auth->ctime->data);
2129 else printf("NULL\n");
2130 #endif /* KSSL_DEBUG */
2133 if (auth) KRB5_AUTHENT_free((KRB5_AUTHENT *) auth);
2134 if (dec_authent) KRB5_ENCDATA_free(dec_authent);
2135 if (unenc_authent) free(unenc_authent);
2140 /* Replaces krb5_build_principal_ext(), with varargs length == 2 (svc, host),
2141 ** because I dont't know how to stub varargs.
2142 ** Returns krb5_error_code == ENOMEM on alloc error, otherwise
2143 ** passes back newly constructed principal, which should be freed by caller.
2145 krb5_error_code kssl_build_principal_2(
2146 /* UPDATE */ krb5_context context,
2147 /* OUT */ krb5_principal *princ,
2148 /* IN */ int rlen, const char *realm,
2149 /* IN */ int slen, const char *svc,
2150 /* IN */ int hlen, const char *host)
2152 krb5_data *p_data = NULL;
2153 krb5_principal new_p = NULL;
2156 if ((p_data = (krb5_data *) calloc(2, sizeof(krb5_data))) == NULL ||
2157 (new_p = (krb5_principal) calloc(1, sizeof(krb5_principal_data)))
2160 new_p->data = p_data;
2162 if ((new_r = calloc(1, rlen + 1)) == NULL) goto err;
2163 memcpy(new_r, realm, rlen);
2164 krb5_princ_set_realm_length(context, new_p, rlen);
2165 krb5_princ_set_realm_data(context, new_p, new_r);
2167 if ((new_p->data[0].data = calloc(1, slen + 1)) == NULL) goto err;
2168 memcpy(new_p->data[0].data, svc, slen);
2169 new_p->data[0].length = slen;
2171 if ((new_p->data[1].data = calloc(1, hlen + 1)) == NULL) goto err;
2172 memcpy(new_p->data[1].data, host, hlen);
2173 new_p->data[1].length = hlen;
2175 krb5_princ_type(context, new_p) = KRB5_NT_UNKNOWN;
2180 if (new_p && new_p[0].data) free(new_p[0].data);
2181 if (new_p && new_p[1].data) free(new_p[1].data);
2182 if (new_p) free(new_p);
2183 if (new_r) free(new_r);
2188 #else /* !OPENSSL_NO_KRB5 */
2190 #if defined(PEDANTIC) || defined(OPENSSL_SYS_VMS)
2191 static int dummy=(int)&dummy;
2194 #endif /* !OPENSSL_NO_KRB5 */