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 500 /* glibc2 needs this to declare strptime() */
73 #undef _XOPEN_SOURCE /* To avoid clashes with anything else... */
76 #define KRB5_PRIVATE 1
78 #include <openssl/ssl.h>
79 #include <openssl/evp.h>
80 #include <openssl/objects.h>
81 #include <openssl/krb5_asn.h>
83 #ifndef OPENSSL_NO_KRB5
86 #define ENOMEM KRB5KRB_ERR_GENERIC
90 * When OpenSSL is built on Windows, we do not want to require that
91 * the Kerberos DLLs be available in order for the OpenSSL DLLs to
92 * work. Therefore, all Kerberos routines are loaded at run time
93 * and we do not link to a .LIB file.
96 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
98 * The purpose of the following pre-processor statements is to provide
99 * compatibility with different releases of MIT Kerberos for Windows.
100 * All versions up to 1.2 used macros. But macros do not allow for
101 * a binary compatible interface for DLLs. Therefore, all macros are
102 * being replaced by function calls. The following code will allow
103 * an OpenSSL DLL built on Windows to work whether or not the macro
104 * or function form of the routines are utilized.
106 #ifdef krb5_cc_get_principal
107 #define NO_DEF_KRB5_CCACHE
108 #undef krb5_cc_get_principal
110 #define krb5_cc_get_principal kssl_krb5_cc_get_principal
112 #define krb5_free_data_contents kssl_krb5_free_data_contents
113 #define krb5_free_context kssl_krb5_free_context
114 #define krb5_auth_con_free kssl_krb5_auth_con_free
115 #define krb5_free_principal kssl_krb5_free_principal
116 #define krb5_mk_req_extended kssl_krb5_mk_req_extended
117 #define krb5_get_credentials kssl_krb5_get_credentials
118 #define krb5_cc_default kssl_krb5_cc_default
119 #define krb5_sname_to_principal kssl_krb5_sname_to_principal
120 #define krb5_init_context kssl_krb5_init_context
121 #define krb5_free_ticket kssl_krb5_free_ticket
122 #define krb5_rd_req kssl_krb5_rd_req
123 #define krb5_kt_default kssl_krb5_kt_default
124 #define krb5_kt_resolve kssl_krb5_kt_resolve
125 /* macros in mit 1.2.2 and earlier; functions in mit 1.2.3 and greater */
126 #ifndef krb5_kt_close
127 #define krb5_kt_close kssl_krb5_kt_close
128 #endif /* krb5_kt_close */
129 #ifndef krb5_kt_get_entry
130 #define krb5_kt_get_entry kssl_krb5_kt_get_entry
131 #endif /* krb5_kt_get_entry */
132 #define krb5_auth_con_init kssl_krb5_auth_con_init
134 #define krb5_principal_compare kssl_krb5_principal_compare
135 #define krb5_decrypt_tkt_part kssl_krb5_decrypt_tkt_part
136 #define krb5_timeofday kssl_krb5_timeofday
137 #define krb5_rc_default kssl_krb5_rc_default
139 #ifdef krb5_rc_initialize
140 #undef krb5_rc_initialize
142 #define krb5_rc_initialize kssl_krb5_rc_initialize
144 #ifdef krb5_rc_get_lifespan
145 #undef krb5_rc_get_lifespan
147 #define krb5_rc_get_lifespan kssl_krb5_rc_get_lifespan
149 #ifdef krb5_rc_destroy
150 #undef krb5_rc_destroy
152 #define krb5_rc_destroy kssl_krb5_rc_destroy
154 #define valid_cksumtype kssl_valid_cksumtype
155 #define krb5_checksum_size kssl_krb5_checksum_size
156 #define krb5_kt_free_entry kssl_krb5_kt_free_entry
157 #define krb5_auth_con_setrcache kssl_krb5_auth_con_setrcache
158 #define krb5_auth_con_getrcache kssl_krb5_auth_con_getrcache
159 #define krb5_get_server_rcache kssl_krb5_get_server_rcache
161 /* Prototypes for built in stubs */
162 void kssl_krb5_free_data_contents(krb5_context, krb5_data *);
163 void kssl_krb5_free_principal(krb5_context, krb5_principal );
164 krb5_error_code kssl_krb5_kt_resolve(krb5_context,
167 krb5_error_code kssl_krb5_kt_default(krb5_context,
169 krb5_error_code kssl_krb5_free_ticket(krb5_context, krb5_ticket *);
170 krb5_error_code kssl_krb5_rd_req(krb5_context, krb5_auth_context *,
171 krb5_const krb5_data *,
172 krb5_const_principal, krb5_keytab,
173 krb5_flags *,krb5_ticket **);
175 krb5_boolean kssl_krb5_principal_compare(krb5_context, krb5_const_principal,
176 krb5_const_principal);
177 krb5_error_code kssl_krb5_mk_req_extended(krb5_context,
179 krb5_const krb5_flags,
183 krb5_error_code kssl_krb5_init_context(krb5_context *);
184 void kssl_krb5_free_context(krb5_context);
185 krb5_error_code kssl_krb5_cc_default(krb5_context,krb5_ccache *);
186 krb5_error_code kssl_krb5_sname_to_principal(krb5_context,
191 krb5_error_code kssl_krb5_get_credentials(krb5_context,
192 krb5_const krb5_flags,
196 krb5_error_code kssl_krb5_auth_con_init(krb5_context,
197 krb5_auth_context *);
198 krb5_error_code kssl_krb5_cc_get_principal(krb5_context context,
200 krb5_principal *principal);
201 krb5_error_code kssl_krb5_auth_con_free(krb5_context,krb5_auth_context);
202 size_t kssl_krb5_checksum_size(krb5_context context,krb5_cksumtype ctype);
203 krb5_boolean kssl_valid_cksumtype(krb5_cksumtype ctype);
204 krb5_error_code krb5_kt_free_entry(krb5_context,krb5_keytab_entry FAR * );
205 krb5_error_code kssl_krb5_auth_con_setrcache(krb5_context,
208 krb5_error_code kssl_krb5_get_server_rcache(krb5_context,
209 krb5_const krb5_data *,
211 krb5_error_code kssl_krb5_auth_con_getrcache(krb5_context,
215 /* Function pointers (almost all Kerberos functions are _stdcall) */
216 static void (_stdcall *p_krb5_free_data_contents)(krb5_context, krb5_data *)
218 static void (_stdcall *p_krb5_free_principal)(krb5_context, krb5_principal )
220 static krb5_error_code(_stdcall *p_krb5_kt_resolve)
221 (krb5_context, krb5_const char *, krb5_keytab *)=NULL;
222 static krb5_error_code (_stdcall *p_krb5_kt_default)(krb5_context,
224 static krb5_error_code (_stdcall *p_krb5_free_ticket)(krb5_context,
226 static krb5_error_code (_stdcall *p_krb5_rd_req)(krb5_context,
228 krb5_const krb5_data *,
229 krb5_const_principal,
230 krb5_keytab, krb5_flags *,
231 krb5_ticket **)=NULL;
232 static krb5_error_code (_stdcall *p_krb5_mk_req_extended)
233 (krb5_context, krb5_auth_context *,
234 krb5_const krb5_flags, krb5_data *, krb5_creds *,
236 static krb5_error_code (_stdcall *p_krb5_init_context)(krb5_context *)=NULL;
237 static void (_stdcall *p_krb5_free_context)(krb5_context)=NULL;
238 static krb5_error_code (_stdcall *p_krb5_cc_default)(krb5_context,
240 static krb5_error_code (_stdcall *p_krb5_sname_to_principal)
241 (krb5_context, krb5_const char *, krb5_const char *,
242 krb5_int32, krb5_principal *)=NULL;
243 static krb5_error_code (_stdcall *p_krb5_get_credentials)
244 (krb5_context, krb5_const krb5_flags, krb5_ccache,
245 krb5_creds *, krb5_creds **)=NULL;
246 static krb5_error_code (_stdcall *p_krb5_auth_con_init)
247 (krb5_context, krb5_auth_context *)=NULL;
248 static krb5_error_code (_stdcall *p_krb5_cc_get_principal)
249 (krb5_context context, krb5_ccache cache,
250 krb5_principal *principal)=NULL;
251 static krb5_error_code (_stdcall *p_krb5_auth_con_free)
252 (krb5_context, krb5_auth_context)=NULL;
253 static krb5_error_code (_stdcall *p_krb5_decrypt_tkt_part)
254 (krb5_context, krb5_const krb5_keyblock *,
256 static krb5_error_code (_stdcall *p_krb5_timeofday)
257 (krb5_context context, krb5_int32 *timeret)=NULL;
258 static krb5_error_code (_stdcall *p_krb5_rc_default)
259 (krb5_context context, krb5_rcache *rc)=NULL;
260 static krb5_error_code (_stdcall *p_krb5_rc_initialize)
261 (krb5_context context, krb5_rcache rc,
262 krb5_deltat lifespan)=NULL;
263 static krb5_error_code (_stdcall *p_krb5_rc_get_lifespan)
264 (krb5_context context, krb5_rcache rc,
265 krb5_deltat *lifespan)=NULL;
266 static krb5_error_code (_stdcall *p_krb5_rc_destroy)
267 (krb5_context context, krb5_rcache rc)=NULL;
268 static krb5_boolean (_stdcall *p_krb5_principal_compare)
269 (krb5_context, krb5_const_principal, krb5_const_principal)=NULL;
270 static size_t (_stdcall *p_krb5_checksum_size)(krb5_context context,krb5_cksumtype ctype)=NULL;
271 static krb5_boolean (_stdcall *p_valid_cksumtype)(krb5_cksumtype ctype)=NULL;
272 static krb5_error_code (_stdcall *p_krb5_kt_free_entry)
273 (krb5_context,krb5_keytab_entry * )=NULL;
274 static krb5_error_code (_stdcall * p_krb5_auth_con_setrcache)(krb5_context,
277 static krb5_error_code (_stdcall * p_krb5_get_server_rcache)(krb5_context,
278 krb5_const krb5_data *,
280 static krb5_error_code (* p_krb5_auth_con_getrcache)(krb5_context,
283 static krb5_error_code (_stdcall * p_krb5_kt_close)(krb5_context context,
284 krb5_keytab keytab)=NULL;
285 static krb5_error_code (_stdcall * p_krb5_kt_get_entry)(krb5_context context,
287 krb5_const_principal principal, krb5_kvno vno,
288 krb5_enctype enctype, krb5_keytab_entry *entry)=NULL;
289 static int krb5_loaded = 0; /* only attempt to initialize func ptrs once */
291 /* Function to Load the Kerberos 5 DLL and initialize function pointers */
298 hKRB5_32 = LoadLibrary("KRB5_32");
302 (FARPROC) p_krb5_free_data_contents =
303 GetProcAddress( hKRB5_32, "krb5_free_data_contents" );
304 (FARPROC) p_krb5_free_context =
305 GetProcAddress( hKRB5_32, "krb5_free_context" );
306 (FARPROC) p_krb5_auth_con_free =
307 GetProcAddress( hKRB5_32, "krb5_auth_con_free" );
308 (FARPROC) p_krb5_free_principal =
309 GetProcAddress( hKRB5_32, "krb5_free_principal" );
310 (FARPROC) p_krb5_mk_req_extended =
311 GetProcAddress( hKRB5_32, "krb5_mk_req_extended" );
312 (FARPROC) p_krb5_get_credentials =
313 GetProcAddress( hKRB5_32, "krb5_get_credentials" );
314 (FARPROC) p_krb5_cc_get_principal =
315 GetProcAddress( hKRB5_32, "krb5_cc_get_principal" );
316 (FARPROC) p_krb5_cc_default =
317 GetProcAddress( hKRB5_32, "krb5_cc_default" );
318 (FARPROC) p_krb5_sname_to_principal =
319 GetProcAddress( hKRB5_32, "krb5_sname_to_principal" );
320 (FARPROC) p_krb5_init_context =
321 GetProcAddress( hKRB5_32, "krb5_init_context" );
322 (FARPROC) p_krb5_free_ticket =
323 GetProcAddress( hKRB5_32, "krb5_free_ticket" );
324 (FARPROC) p_krb5_rd_req =
325 GetProcAddress( hKRB5_32, "krb5_rd_req" );
326 (FARPROC) p_krb5_principal_compare =
327 GetProcAddress( hKRB5_32, "krb5_principal_compare" );
328 (FARPROC) p_krb5_decrypt_tkt_part =
329 GetProcAddress( hKRB5_32, "krb5_decrypt_tkt_part" );
330 (FARPROC) p_krb5_timeofday =
331 GetProcAddress( hKRB5_32, "krb5_timeofday" );
332 (FARPROC) p_krb5_rc_default =
333 GetProcAddress( hKRB5_32, "krb5_rc_default" );
334 (FARPROC) p_krb5_rc_initialize =
335 GetProcAddress( hKRB5_32, "krb5_rc_initialize" );
336 (FARPROC) p_krb5_rc_get_lifespan =
337 GetProcAddress( hKRB5_32, "krb5_rc_get_lifespan" );
338 (FARPROC) p_krb5_rc_destroy =
339 GetProcAddress( hKRB5_32, "krb5_rc_destroy" );
340 (FARPROC) p_krb5_kt_default =
341 GetProcAddress( hKRB5_32, "krb5_kt_default" );
342 (FARPROC) p_krb5_kt_resolve =
343 GetProcAddress( hKRB5_32, "krb5_kt_resolve" );
344 (FARPROC) p_krb5_auth_con_init =
345 GetProcAddress( hKRB5_32, "krb5_auth_con_init" );
346 (FARPROC) p_valid_cksumtype =
347 GetProcAddress( hKRB5_32, "valid_cksumtype" );
348 (FARPROC) p_krb5_checksum_size =
349 GetProcAddress( hKRB5_32, "krb5_checksum_size" );
350 (FARPROC) p_krb5_kt_free_entry =
351 GetProcAddress( hKRB5_32, "krb5_kt_free_entry" );
352 (FARPROC) p_krb5_auth_con_setrcache =
353 GetProcAddress( hKRB5_32, "krb5_auth_con_setrcache" );
354 (FARPROC) p_krb5_get_server_rcache =
355 GetProcAddress( hKRB5_32, "krb5_get_server_rcache" );
356 (FARPROC) p_krb5_auth_con_getrcache =
357 GetProcAddress( hKRB5_32, "krb5_auth_con_getrcache" );
358 (FARPROC) p_krb5_kt_close =
359 GetProcAddress( hKRB5_32, "krb5_kt_close" );
360 (FARPROC) p_krb5_kt_get_entry =
361 GetProcAddress( hKRB5_32, "krb5_kt_get_entry" );
364 /* Stubs for each function to be dynamicly loaded */
366 kssl_krb5_free_data_contents(krb5_context CO, krb5_data * data)
371 if ( p_krb5_free_data_contents )
372 p_krb5_free_data_contents(CO,data);
376 kssl_krb5_mk_req_extended (krb5_context CO,
377 krb5_auth_context * pACO,
378 krb5_const krb5_flags F,
386 if ( p_krb5_mk_req_extended )
387 return(p_krb5_mk_req_extended(CO,pACO,F,pD1,pC,pD2));
389 return KRB5KRB_ERR_GENERIC;
392 kssl_krb5_auth_con_init(krb5_context CO,
393 krb5_auth_context * pACO)
398 if ( p_krb5_auth_con_init )
399 return(p_krb5_auth_con_init(CO,pACO));
401 return KRB5KRB_ERR_GENERIC;
404 kssl_krb5_auth_con_free (krb5_context CO,
405 krb5_auth_context ACO)
410 if ( p_krb5_auth_con_free )
411 return(p_krb5_auth_con_free(CO,ACO));
413 return KRB5KRB_ERR_GENERIC;
416 kssl_krb5_get_credentials(krb5_context CO,
417 krb5_const krb5_flags F,
425 if ( p_krb5_get_credentials )
426 return(p_krb5_get_credentials(CO,F,CC,pCR,ppCR));
428 return KRB5KRB_ERR_GENERIC;
431 kssl_krb5_sname_to_principal(krb5_context CO,
432 krb5_const char * pC1,
433 krb5_const char * pC2,
435 krb5_principal * pPR)
440 if ( p_krb5_sname_to_principal )
441 return(p_krb5_sname_to_principal(CO,pC1,pC2,I,pPR));
443 return KRB5KRB_ERR_GENERIC;
447 kssl_krb5_cc_default(krb5_context CO,
453 if ( p_krb5_cc_default )
454 return(p_krb5_cc_default(CO,pCC));
456 return KRB5KRB_ERR_GENERIC;
460 kssl_krb5_init_context(krb5_context * pCO)
465 if ( p_krb5_init_context )
466 return(p_krb5_init_context(pCO));
468 return KRB5KRB_ERR_GENERIC;
472 kssl_krb5_free_context(krb5_context CO)
477 if ( p_krb5_free_context )
478 p_krb5_free_context(CO);
482 kssl_krb5_free_principal(krb5_context c, krb5_principal p)
487 if ( p_krb5_free_principal )
488 p_krb5_free_principal(c,p);
492 kssl_krb5_kt_resolve(krb5_context con,
493 krb5_const char * sz,
499 if ( p_krb5_kt_resolve )
500 return(p_krb5_kt_resolve(con,sz,kt));
502 return KRB5KRB_ERR_GENERIC;
506 kssl_krb5_kt_default(krb5_context con,
512 if ( p_krb5_kt_default )
513 return(p_krb5_kt_default(con,kt));
515 return KRB5KRB_ERR_GENERIC;
519 kssl_krb5_free_ticket(krb5_context con,
525 if ( p_krb5_free_ticket )
526 return(p_krb5_free_ticket(con,kt));
528 return KRB5KRB_ERR_GENERIC;
532 kssl_krb5_rd_req(krb5_context con, krb5_auth_context * pacon,
533 krb5_const krb5_data * data,
534 krb5_const_principal princ, krb5_keytab keytab,
535 krb5_flags * flags, krb5_ticket ** pptkt)
541 return(p_krb5_rd_req(con,pacon,data,princ,keytab,flags,pptkt));
543 return KRB5KRB_ERR_GENERIC;
547 krb5_principal_compare(krb5_context con, krb5_const_principal princ1,
548 krb5_const_principal princ2)
553 if ( p_krb5_principal_compare )
554 return(p_krb5_principal_compare(con,princ1,princ2));
556 return KRB5KRB_ERR_GENERIC;
560 krb5_decrypt_tkt_part(krb5_context con, krb5_const krb5_keyblock *keys,
566 if ( p_krb5_decrypt_tkt_part )
567 return(p_krb5_decrypt_tkt_part(con,keys,ticket));
569 return KRB5KRB_ERR_GENERIC;
573 krb5_timeofday(krb5_context con, krb5_int32 *timeret)
578 if ( p_krb5_timeofday )
579 return(p_krb5_timeofday(con,timeret));
581 return KRB5KRB_ERR_GENERIC;
585 krb5_rc_default(krb5_context con, krb5_rcache *rc)
590 if ( p_krb5_rc_default )
591 return(p_krb5_rc_default(con,rc));
593 return KRB5KRB_ERR_GENERIC;
597 krb5_rc_initialize(krb5_context con, krb5_rcache rc, krb5_deltat lifespan)
602 if ( p_krb5_rc_initialize )
603 return(p_krb5_rc_initialize(con, rc, lifespan));
605 return KRB5KRB_ERR_GENERIC;
609 krb5_rc_get_lifespan(krb5_context con, krb5_rcache rc, krb5_deltat *lifespanp)
614 if ( p_krb5_rc_get_lifespan )
615 return(p_krb5_rc_get_lifespan(con, rc, lifespanp));
617 return KRB5KRB_ERR_GENERIC;
621 krb5_rc_destroy(krb5_context con, krb5_rcache rc)
626 if ( p_krb5_rc_destroy )
627 return(p_krb5_rc_destroy(con, rc));
629 return KRB5KRB_ERR_GENERIC;
633 krb5_checksum_size(krb5_context context,krb5_cksumtype ctype)
638 if ( p_krb5_checksum_size )
639 return(p_krb5_checksum_size(context, ctype));
641 return KRB5KRB_ERR_GENERIC;
645 valid_cksumtype(krb5_cksumtype ctype)
650 if ( p_valid_cksumtype )
651 return(p_valid_cksumtype(ctype));
653 return KRB5KRB_ERR_GENERIC;
657 krb5_kt_free_entry(krb5_context con,krb5_keytab_entry * entry)
662 if ( p_krb5_kt_free_entry )
663 return(p_krb5_kt_free_entry(con,entry));
665 return KRB5KRB_ERR_GENERIC;
668 /* Structure definitions */
669 #ifndef NO_DEF_KRB5_CCACHE
671 #define krb5_x(ptr,args) ((ptr)?((*(ptr)) args):(abort(),1))
672 #define krb5_xc(ptr,args) ((ptr)?((*(ptr)) args):(abort(),(char*)0))
675 typedef krb5_pointer krb5_cc_cursor; /* cursor for sequential lookup */
677 typedef struct _krb5_ccache
680 struct _krb5_cc_ops FAR *ops;
684 typedef struct _krb5_cc_ops
688 char * (KRB5_CALLCONV *get_name)
689 (krb5_context, krb5_ccache);
690 krb5_error_code (KRB5_CALLCONV *resolve)
691 (krb5_context, krb5_ccache *, const char *);
692 krb5_error_code (KRB5_CALLCONV *gen_new)
693 (krb5_context, krb5_ccache *);
694 krb5_error_code (KRB5_CALLCONV *init)
695 (krb5_context, krb5_ccache, krb5_principal);
696 krb5_error_code (KRB5_CALLCONV *destroy)
697 (krb5_context, krb5_ccache);
698 krb5_error_code (KRB5_CALLCONV *close)
699 (krb5_context, krb5_ccache);
700 krb5_error_code (KRB5_CALLCONV *store)
701 (krb5_context, krb5_ccache, krb5_creds *);
702 krb5_error_code (KRB5_CALLCONV *retrieve)
703 (krb5_context, krb5_ccache,
704 krb5_flags, krb5_creds *, krb5_creds *);
705 krb5_error_code (KRB5_CALLCONV *get_princ)
706 (krb5_context, krb5_ccache, krb5_principal *);
707 krb5_error_code (KRB5_CALLCONV *get_first)
708 (krb5_context, krb5_ccache, krb5_cc_cursor *);
709 krb5_error_code (KRB5_CALLCONV *get_next)
710 (krb5_context, krb5_ccache,
711 krb5_cc_cursor *, krb5_creds *);
712 krb5_error_code (KRB5_CALLCONV *end_get)
713 (krb5_context, krb5_ccache, krb5_cc_cursor *);
714 krb5_error_code (KRB5_CALLCONV *remove_cred)
715 (krb5_context, krb5_ccache,
716 krb5_flags, krb5_creds *);
717 krb5_error_code (KRB5_CALLCONV *set_flags)
718 (krb5_context, krb5_ccache, krb5_flags);
720 #endif /* NO_DEF_KRB5_CCACHE */
723 kssl_krb5_cc_get_principal
724 (krb5_context context, krb5_ccache cache,
725 krb5_principal *principal)
727 if ( p_krb5_cc_get_principal )
728 return(p_krb5_cc_get_principal(context,cache,principal));
731 ((cache)->ops->get_princ,(context, cache, principal)));
735 kssl_krb5_auth_con_setrcache(krb5_context con, krb5_auth_context acon,
738 if ( p_krb5_auth_con_setrcache )
739 return(p_krb5_auth_con_setrcache(con,acon,rcache));
741 return KRB5KRB_ERR_GENERIC;
745 kssl_krb5_get_server_rcache(krb5_context con, krb5_const krb5_data * data,
746 krb5_rcache * rcache)
748 if ( p_krb5_get_server_rcache )
749 return(p_krb5_get_server_rcache(con,data,rcache));
751 return KRB5KRB_ERR_GENERIC;
755 kssl_krb5_auth_con_getrcache(krb5_context con, krb5_auth_context acon,
756 krb5_rcache * prcache)
758 if ( p_krb5_auth_con_getrcache )
759 return(p_krb5_auth_con_getrcache(con,acon, prcache));
761 return KRB5KRB_ERR_GENERIC;
765 kssl_krb5_kt_close(krb5_context context, krb5_keytab keytab)
767 if ( p_krb5_kt_close )
768 return(p_krb5_kt_close(context,keytab));
770 return KRB5KRB_ERR_GENERIC;
774 kssl_krb5_kt_get_entry(krb5_context context, krb5_keytab keytab,
775 krb5_const_principal principal, krb5_kvno vno,
776 krb5_enctype enctype, krb5_keytab_entry *entry)
778 if ( p_krb5_kt_get_entry )
779 return(p_krb5_kt_get_entry(context,keytab,principal,vno,enctype,entry));
781 return KRB5KRB_ERR_GENERIC;
783 #endif /* OPENSSL_SYS_WINDOWS || OPENSSL_SYS_WIN32 */
786 *kstring(char *string)
788 static char *null = "[NULL]";
790 return ((string == NULL)? null: string);
793 /* Given KRB5 enctype (basically DES or 3DES),
794 ** return closest match openssl EVP_ encryption algorithm.
795 ** Return NULL for unknown or problematic (krb5_dk_encrypt) enctypes.
796 ** Assume ENCTYPE_*_RAW (krb5_raw_encrypt) are OK.
799 kssl_map_enc(krb5_enctype enctype)
803 case ENCTYPE_DES_HMAC_SHA1: /* EVP_des_cbc(); */
804 case ENCTYPE_DES_CBC_CRC:
805 case ENCTYPE_DES_CBC_MD4:
806 case ENCTYPE_DES_CBC_MD5:
807 case ENCTYPE_DES_CBC_RAW:
808 return EVP_des_cbc();
810 case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */
811 case ENCTYPE_DES3_CBC_SHA:
812 case ENCTYPE_DES3_CBC_RAW:
813 return EVP_des_ede3_cbc();
815 default: return NULL;
821 /* Return true:1 if p "looks like" the start of the real authenticator
822 ** described in kssl_skip_confound() below. The ASN.1 pattern is
823 ** "62 xx 30 yy" (APPLICATION-2, SEQUENCE), where xx-yy =~ 2, and
824 ** xx and yy are possibly multi-byte length fields.
826 int kssl_test_confound(unsigned char *p)
831 if (*p++ != 0x62) return 0;
832 if (*p > 0x82) return 0;
834 case 0x82: p++; xx = (*p++ << 8); xx += *p++; break;
835 case 0x81: p++; xx = *p++; break;
837 default: xx = *p++; break;
839 if (*p++ != 0x30) return 0;
840 if (*p > 0x82) return 0;
842 case 0x82: p++; len+=2; yy = (*p++ << 8); yy += *p++; break;
843 case 0x81: p++; len++; yy = *p++; break;
845 default: yy = *p++; break;
848 return (xx - len == yy)? 1: 0;
851 /* Allocate, fill, and return cksumlens array of checksum lengths.
852 ** This array holds just the unique elements from the krb5_cksumarray[].
853 ** array[n] == 0 signals end of data.
855 ** The krb5_cksumarray[] was an internal variable that has since been
856 ** replaced by a more general method for storing the data. It should
857 ** not be used. Instead we use real API calls and make a guess for
858 ** what the highest assigned CKSUMTYPE_ constant is. As of 1.2.2
859 ** it is 0x000c (CKSUMTYPE_HMAC_SHA1_DES3). So we will use 0x0010.
861 size_t *populate_cksumlens(void)
864 static size_t *cklens = NULL;
866 #ifdef KRB5_MIT_OLD11
870 #endif /* KRB5_MIT_OLD11 */
873 if (!cklens && !(cklens = (size_t *) calloc(sizeof(int),n+1))) return NULL;
875 for (i=0; i < n; i++) {
876 if (!valid_cksumtype(i)) continue; /* array has holes */
877 for (j=0; j < n; j++) {
878 if (cklens[j] == 0) {
879 cklens[j] = krb5_checksum_size(NULL,i);
880 break; /* krb5 elem was new: add */
882 if (cklens[j] == krb5_checksum_size(NULL,i)) {
883 break; /* ignore duplicate elements */
887 #endif /* KRB5CHECKAUTH */
892 /* Return pointer to start of real authenticator within authenticator, or
893 ** return NULL on error.
894 ** Decrypted authenticator looks like this:
895 ** [0 or 8 byte confounder] [4-24 byte checksum] [real authent'r]
896 ** This hackery wouldn't be necessary if MIT KRB5 1.0.6 had the
897 ** krb5_auth_con_getcksumtype() function advertised in its krb5.h.
899 unsigned char *kssl_skip_confound(krb5_enctype etype, unsigned char *a)
903 static size_t *cksumlens = NULL;
904 unsigned char *test_auth;
906 conlen = (etype)? 8: 0;
908 if (!cksumlens && !(cksumlens = populate_cksumlens())) return NULL;
909 for (i=0; (cklen = cksumlens[i]) != 0; i++)
911 test_auth = a + conlen + cklen;
912 if (kssl_test_confound(test_auth)) return test_auth;
919 /* Set kssl_err error info when reason text is a simple string
920 ** kssl_err = struct { int reason; char text[KSSL_ERR_MAX+1]; }
923 kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text)
925 if (kssl_err == NULL) return;
927 kssl_err->reason = reason;
928 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, text);
933 /* Display contents of krb5_data struct, for debugging
936 print_krb5_data(char *label, krb5_data *kdata)
940 printf("%s[%d] ", label, kdata->length);
941 for (i=0; i < (int)kdata->length; i++)
943 if (0 && isprint((int) kdata->data[i]))
944 printf( "%c ", kdata->data[i]);
946 printf( "%02x ", (unsigned char) kdata->data[i]);
952 /* Display contents of krb5_authdata struct, for debugging
955 print_krb5_authdata(char *label, krb5_authdata **adata)
959 printf("%s, authdata==0\n", label);
962 printf("%s [%p]\n", label, (void *)adata);
966 printf("%s[at%d:%d] ", label, adata->ad_type, adata->length);
967 for (i=0; i < adata->length; i++)
969 printf((isprint(adata->contents[i]))? "%c ": "%02x",
978 /* Display contents of krb5_keyblock struct, for debugging
981 print_krb5_keyblock(char *label, krb5_keyblock *keyblk)
987 printf("%s, keyblk==0\n", label);
991 printf("%s\n\t[et%d:%d]: ", label, keyblk->keytype,
992 keyblk->keyvalue->length);
993 for (i=0; i < (int)keyblk->keyvalue->length; i++)
995 printf("%02x",(unsigned char *)(keyblk->keyvalue->contents)[i]);
999 printf("%s\n\t[et%d:%d]: ", label, keyblk->enctype, keyblk->length);
1000 for (i=0; i < (int)keyblk->length; i++)
1002 printf("%02x",keyblk->contents[i]);
1009 /* Display contents of krb5_principal_data struct, for debugging
1010 ** (krb5_principal is typedef'd == krb5_principal_data *)
1013 print_krb5_princ(char *label, krb5_principal_data *princ)
1017 printf("%s principal Realm: ", label);
1018 if (princ == NULL) return;
1019 for (ui=0; ui < (int)princ->realm.length; ui++) putchar(princ->realm.data[ui]);
1020 printf(" (nametype %d) has %d strings:\n", princ->type,princ->length);
1021 for (i=0; i < (int)princ->length; i++)
1023 printf("\t%d [%d]: ", i, princ->data[i].length);
1024 for (uj=0; uj < (int)princ->data[i].length; uj++) {
1025 putchar(princ->data[i].data[uj]);
1033 /* Given krb5 service (typically "kssl") and hostname in kssl_ctx,
1034 ** Return encrypted Kerberos ticket for service @ hostname.
1035 ** If authenp is non-NULL, also return encrypted authenticator,
1036 ** whose data should be freed by caller.
1037 ** (Originally was: Create Kerberos AP_REQ message for SSL Client.)
1039 ** 19990628 VRS Started; Returns Kerberos AP_REQ message.
1040 ** 20010409 VRS Modified for RFC2712; Returns enc tkt.
1041 ** 20010606 VRS May also return optional authenticator.
1044 kssl_cget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
1045 /* OUT */ krb5_data **enc_ticketp,
1046 /* UPDATE */ krb5_data *authenp,
1047 /* OUT */ KSSL_ERR *kssl_err)
1049 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1050 krb5_context krb5context = NULL;
1051 krb5_auth_context krb5auth_context = NULL;
1052 krb5_ccache krb5ccdef = NULL;
1053 krb5_creds krb5creds, *krb5credsp = NULL;
1054 krb5_data krb5_app_req;
1056 kssl_err_set(kssl_err, 0, "");
1057 memset((char *)&krb5creds, 0, sizeof(krb5creds));
1061 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1062 "No kssl_ctx defined.\n");
1065 else if (!kssl_ctx->service_host)
1067 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1068 "kssl_ctx service_host undefined.\n");
1072 if ((krb5rc = krb5_init_context(&krb5context)) != 0)
1074 BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
1075 "krb5_init_context() fails: %d\n", krb5rc);
1076 kssl_err->reason = SSL_R_KRB5_C_INIT;
1080 if ((krb5rc = krb5_sname_to_principal(krb5context,
1081 kssl_ctx->service_host,
1082 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1083 KRB5_NT_SRV_HST, &krb5creds.server)) != 0)
1085 BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
1086 "krb5_sname_to_principal() fails for %s/%s\n",
1087 kssl_ctx->service_host,
1088 (kssl_ctx->service_name)? kssl_ctx->service_name:
1090 kssl_err->reason = SSL_R_KRB5_C_INIT;
1094 if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0)
1096 kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
1097 "krb5_cc_default fails.\n");
1101 if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef,
1102 &krb5creds.client)) != 0)
1104 kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
1105 "krb5_cc_get_principal() fails.\n");
1109 if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef,
1110 &krb5creds, &krb5credsp)) != 0)
1112 kssl_err_set(kssl_err, SSL_R_KRB5_C_GET_CRED,
1113 "krb5_get_credentials() fails.\n");
1117 *enc_ticketp = &krb5credsp->ticket;
1119 kssl_ctx->enctype = krb5credsp->session.keytype;
1121 kssl_ctx->enctype = krb5credsp->keyblock.enctype;
1124 krb5rc = KRB5KRB_ERR_GENERIC;
1125 /* caller should free data of krb5_app_req */
1126 /* 20010406 VRS deleted for real KerberosWrapper
1127 ** 20010605 VRS reinstated to offer Authenticator to KerberosWrapper
1129 krb5_app_req.length = 0;
1132 krb5_data krb5in_data;
1133 const unsigned char *p;
1135 KRB5_APREQBODY *ap_req;
1137 authenp->length = 0;
1138 krb5in_data.data = NULL;
1139 krb5in_data.length = 0;
1140 if ((krb5rc = krb5_mk_req_extended(krb5context,
1141 &krb5auth_context, 0, &krb5in_data, krb5credsp,
1142 &krb5_app_req)) != 0)
1144 kssl_err_set(kssl_err, SSL_R_KRB5_C_MK_REQ,
1145 "krb5_mk_req_extended() fails.\n");
1149 arlen = krb5_app_req.length;
1150 p = (unsigned char *)krb5_app_req.data;
1151 ap_req = (KRB5_APREQBODY *) d2i_KRB5_APREQ(NULL, &p, arlen);
1154 authenp->length = i2d_KRB5_ENCDATA(
1155 ap_req->authenticator, NULL);
1156 if (authenp->length &&
1157 (authenp->data = malloc(authenp->length)))
1159 unsigned char *adp = (unsigned char *)authenp->data;
1160 authenp->length = i2d_KRB5_ENCDATA(
1161 ap_req->authenticator, &adp);
1165 if (ap_req) KRB5_APREQ_free((KRB5_APREQ *) ap_req);
1166 if (krb5_app_req.length)
1167 kssl_krb5_free_data_contents(krb5context,&krb5_app_req);
1170 if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->session))
1172 kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT,
1173 "kssl_ctx_setkey() fails.\n");
1176 if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->keyblock))
1178 kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT,
1179 "kssl_ctx_setkey() fails.\n");
1186 kssl_ctx_show(kssl_ctx);
1187 #endif /* KSSL_DEBUG */
1189 if (krb5creds.client) krb5_free_principal(krb5context,
1191 if (krb5creds.server) krb5_free_principal(krb5context,
1193 if (krb5auth_context) krb5_auth_con_free(krb5context,
1195 if (krb5context) krb5_free_context(krb5context);
1200 /* Given d2i_-decoded asn1ticket, allocate and return a new krb5_ticket.
1201 ** Return Kerberos error code and kssl_err struct on error.
1202 ** Allocates krb5_ticket and krb5_principal; caller should free these.
1204 ** 20010410 VRS Implemented krb5_decode_ticket() as
1205 ** old_krb5_decode_ticket(). Missing from MIT1.0.6.
1206 ** 20010615 VRS Re-cast as openssl/asn1 d2i_*() functions.
1207 ** Re-used some of the old krb5_decode_ticket()
1208 ** code here. This tkt should alloc/free just
1209 ** like the real thing.
1212 kssl_TKT2tkt( /* IN */ krb5_context krb5context,
1213 /* IN */ KRB5_TKTBODY *asn1ticket,
1214 /* OUT */ krb5_ticket **krb5ticket,
1215 /* OUT */ KSSL_ERR *kssl_err )
1217 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1218 krb5_ticket *new5ticket = NULL;
1219 ASN1_GENERALSTRING *gstr_svc, *gstr_host;
1223 if (asn1ticket == NULL || asn1ticket->realm == NULL ||
1224 asn1ticket->sname == NULL ||
1225 sk_ASN1_GENERALSTRING_num(asn1ticket->sname->namestring) < 2)
1227 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1228 "Null field in asn1ticket.\n");
1229 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1230 return KRB5KRB_ERR_GENERIC;
1233 if ((new5ticket = (krb5_ticket *) calloc(1, sizeof(krb5_ticket)))==NULL)
1235 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1236 "Unable to allocate new krb5_ticket.\n");
1237 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1238 return ENOMEM; /* or KRB5KRB_ERR_GENERIC; */
1241 gstr_svc = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 0);
1242 gstr_host = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 1);
1244 if ((krb5rc = kssl_build_principal_2(krb5context,
1245 &new5ticket->server,
1246 asn1ticket->realm->length, (char *)asn1ticket->realm->data,
1247 gstr_svc->length, (char *)gstr_svc->data,
1248 gstr_host->length, (char *)gstr_host->data)) != 0)
1251 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1252 "Error building ticket server principal.\n");
1253 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1254 return krb5rc; /* or KRB5KRB_ERR_GENERIC; */
1257 krb5_princ_type(krb5context, new5ticket->server) =
1258 asn1ticket->sname->nametype->data[0];
1259 new5ticket->enc_part.enctype = asn1ticket->encdata->etype->data[0];
1260 new5ticket->enc_part.kvno = asn1ticket->encdata->kvno->data[0];
1261 new5ticket->enc_part.ciphertext.length =
1262 asn1ticket->encdata->cipher->length;
1263 if ((new5ticket->enc_part.ciphertext.data =
1264 calloc(1, asn1ticket->encdata->cipher->length)) == NULL)
1267 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1268 "Error allocating cipher in krb5ticket.\n");
1269 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1270 return KRB5KRB_ERR_GENERIC;
1274 memcpy(new5ticket->enc_part.ciphertext.data,
1275 asn1ticket->encdata->cipher->data,
1276 asn1ticket->encdata->cipher->length);
1279 *krb5ticket = new5ticket;
1284 /* Given krb5 service name in KSSL_CTX *kssl_ctx (typically "kssl"),
1285 ** and krb5 AP_REQ message & message length,
1286 ** Return Kerberos session key and client principle
1287 ** to SSL Server in KSSL_CTX *kssl_ctx.
1289 ** 19990702 VRS Started.
1292 kssl_sget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
1293 /* IN */ krb5_data *indata,
1294 /* OUT */ krb5_ticket_times *ttimes,
1295 /* OUT */ KSSL_ERR *kssl_err )
1297 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1298 static krb5_context krb5context = NULL;
1299 static krb5_auth_context krb5auth_context = NULL;
1300 krb5_ticket *krb5ticket = NULL;
1301 KRB5_TKTBODY *asn1ticket = NULL;
1302 const unsigned char *p;
1303 krb5_keytab krb5keytab = NULL;
1304 krb5_keytab_entry kt_entry;
1305 krb5_principal krb5server;
1306 krb5_rcache rcache = NULL;
1308 kssl_err_set(kssl_err, 0, "");
1312 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1313 "No kssl_ctx defined.\n");
1318 printf("in kssl_sget_tkt(%s)\n", kstring(kssl_ctx->service_name));
1319 #endif /* KSSL_DEBUG */
1321 if (!krb5context && (krb5rc = krb5_init_context(&krb5context)))
1323 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1324 "krb5_init_context() fails.\n");
1327 if (krb5auth_context &&
1328 (krb5rc = krb5_auth_con_free(krb5context, krb5auth_context)))
1330 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1331 "krb5_auth_con_free() fails.\n");
1334 else krb5auth_context = NULL;
1335 if (!krb5auth_context &&
1336 (krb5rc = krb5_auth_con_init(krb5context, &krb5auth_context)))
1338 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1339 "krb5_auth_con_init() fails.\n");
1344 if ((krb5rc = krb5_auth_con_getrcache(krb5context, krb5auth_context,
1347 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1348 "krb5_auth_con_getrcache() fails.\n");
1352 if ((krb5rc = krb5_sname_to_principal(krb5context, NULL,
1353 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1354 KRB5_NT_SRV_HST, &krb5server)) != 0)
1356 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1357 "krb5_sname_to_principal() fails.\n");
1363 if ((krb5rc = krb5_get_server_rcache(krb5context,
1364 krb5_princ_component(krb5context, krb5server, 0),
1367 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1368 "krb5_get_server_rcache() fails.\n");
1373 if ((krb5rc = krb5_auth_con_setrcache(krb5context, krb5auth_context, rcache)))
1375 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1376 "krb5_auth_con_setrcache() fails.\n");
1381 /* kssl_ctx->keytab_file == NULL ==> use Kerberos default
1383 if (kssl_ctx->keytab_file)
1385 krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file,
1389 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1390 "krb5_kt_resolve() fails.\n");
1396 krb5rc = krb5_kt_default(krb5context,&krb5keytab);
1399 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
1400 "krb5_kt_default() fails.\n");
1405 /* Actual Kerberos5 krb5_recvauth() has initial conversation here
1406 ** o check KRB5_SENDAUTH_BADAUTHVERS
1407 ** unless KRB5_RECVAUTH_SKIP_VERSION
1408 ** o check KRB5_SENDAUTH_BADAPPLVERS
1409 ** o send "0" msg if all OK
1412 /* 20010411 was using AP_REQ instead of true KerberosWrapper
1414 ** if ((krb5rc = krb5_rd_req(krb5context, &krb5auth_context,
1415 ** &krb5in_data, krb5server, krb5keytab,
1416 ** &ap_option, &krb5ticket)) != 0) { Error }
1419 p = (unsigned char *)indata->data;
1420 if ((asn1ticket = (KRB5_TKTBODY *) d2i_KRB5_TICKET(NULL, &p,
1421 (long) indata->length)) == NULL)
1423 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1424 "d2i_KRB5_TICKET() ASN.1 decode failure.\n");
1425 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1429 /* Was: krb5rc = krb5_decode_ticket(krb5in_data,&krb5ticket)) != 0) */
1430 if ((krb5rc = kssl_TKT2tkt(krb5context, asn1ticket, &krb5ticket,
1433 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1434 "Error converting ASN.1 ticket to krb5_ticket.\n");
1435 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1439 if (! krb5_principal_compare(krb5context, krb5server,
1440 krb5ticket->server)) {
1441 krb5rc = KRB5_PRINC_NOMATCH;
1442 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1443 "server principal != ticket principal\n");
1444 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1447 if ((krb5rc = krb5_kt_get_entry(krb5context, krb5keytab,
1448 krb5ticket->server, krb5ticket->enc_part.kvno,
1449 krb5ticket->enc_part.enctype, &kt_entry)) != 0) {
1450 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1451 "krb5_kt_get_entry() fails with %x.\n", krb5rc);
1452 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1455 if ((krb5rc = krb5_decrypt_tkt_part(krb5context, &kt_entry.key,
1456 krb5ticket)) != 0) {
1457 BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
1458 "krb5_decrypt_tkt_part() failed.\n");
1459 kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
1463 krb5_kt_free_entry(krb5context, &kt_entry);
1466 int i; krb5_address **paddr = krb5ticket->enc_part2->caddrs;
1467 printf("Decrypted ticket fields:\n");
1468 printf("\tflags: %X, transit-type: %X",
1469 krb5ticket->enc_part2->flags,
1470 krb5ticket->enc_part2->transited.tr_type);
1471 print_krb5_data("\ttransit-data: ",
1472 &(krb5ticket->enc_part2->transited.tr_contents));
1473 printf("\tcaddrs: %p, authdata: %p\n",
1474 krb5ticket->enc_part2->caddrs,
1475 krb5ticket->enc_part2->authorization_data);
1478 printf("\tcaddrs:\n");
1479 for (i=0; paddr[i] != NULL; i++)
1482 d.length=paddr[i]->length;
1483 d.data=paddr[i]->contents;
1484 print_krb5_data("\t\tIP: ", &d);
1487 printf("\tstart/auth/end times: %d / %d / %d\n",
1488 krb5ticket->enc_part2->times.starttime,
1489 krb5ticket->enc_part2->times.authtime,
1490 krb5ticket->enc_part2->times.endtime);
1492 #endif /* KSSL_DEBUG */
1495 krb5rc = KRB5_NO_TKT_SUPPLIED;
1496 if (!krb5ticket || !krb5ticket->enc_part2 ||
1497 !krb5ticket->enc_part2->client ||
1498 !krb5ticket->enc_part2->client->data ||
1499 !krb5ticket->enc_part2->session)
1501 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1502 "bad ticket from krb5_rd_req.\n");
1504 else if (kssl_ctx_setprinc(kssl_ctx, KSSL_CLIENT,
1505 &krb5ticket->enc_part2->client->realm,
1506 krb5ticket->enc_part2->client->data,
1507 krb5ticket->enc_part2->client->length))
1509 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1510 "kssl_ctx_setprinc() fails.\n");
1512 else if (kssl_ctx_setkey(kssl_ctx, krb5ticket->enc_part2->session))
1514 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1515 "kssl_ctx_setkey() fails.\n");
1517 else if (krb5ticket->enc_part2->flags & TKT_FLG_INVALID)
1519 krb5rc = KRB5KRB_AP_ERR_TKT_INVALID;
1520 kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
1521 "invalid ticket from krb5_rd_req.\n");
1525 kssl_ctx->enctype = krb5ticket->enc_part.enctype;
1526 ttimes->authtime = krb5ticket->enc_part2->times.authtime;
1527 ttimes->starttime = krb5ticket->enc_part2->times.starttime;
1528 ttimes->endtime = krb5ticket->enc_part2->times.endtime;
1529 ttimes->renew_till = krb5ticket->enc_part2->times.renew_till;
1533 kssl_ctx_show(kssl_ctx);
1534 #endif /* KSSL_DEBUG */
1536 if (asn1ticket) KRB5_TICKET_free((KRB5_TICKET *) asn1ticket);
1537 if (krb5keytab) krb5_kt_close(krb5context, krb5keytab);
1538 if (krb5ticket) krb5_free_ticket(krb5context, krb5ticket);
1539 if (krb5server) krb5_free_principal(krb5context, krb5server);
1544 /* Allocate & return a new kssl_ctx struct.
1549 return ((KSSL_CTX *) calloc(1, sizeof(KSSL_CTX)));
1553 /* Frees a kssl_ctx struct and any allocated memory it holds.
1557 kssl_ctx_free(KSSL_CTX *kssl_ctx)
1559 if (kssl_ctx == NULL) return kssl_ctx;
1561 if (kssl_ctx->key) OPENSSL_cleanse(kssl_ctx->key,
1563 if (kssl_ctx->key) free(kssl_ctx->key);
1564 if (kssl_ctx->client_princ) free(kssl_ctx->client_princ);
1565 if (kssl_ctx->service_host) free(kssl_ctx->service_host);
1566 if (kssl_ctx->service_name) free(kssl_ctx->service_name);
1567 if (kssl_ctx->keytab_file) free(kssl_ctx->keytab_file);
1570 return (KSSL_CTX *) NULL;
1574 /* Given an array of (krb5_data *) entity (and optional realm),
1575 ** set the plain (char *) client_princ or service_host member
1576 ** of the kssl_ctx struct.
1579 kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which,
1580 krb5_data *realm, krb5_data *entity, int nentities)
1586 if (kssl_ctx == NULL || entity == NULL) return KSSL_CTX_ERR;
1590 case KSSL_CLIENT: princ = &kssl_ctx->client_princ; break;
1591 case KSSL_SERVER: princ = &kssl_ctx->service_host; break;
1592 default: return KSSL_CTX_ERR; break;
1594 if (*princ) free(*princ);
1596 /* Add up all the entity->lengths */
1598 for (i=0; i < nentities; i++)
1600 length += entity[i].length;
1602 /* Add in space for the '/' character(s) (if any) */
1603 length += nentities-1;
1604 /* Space for the ('@'+realm+NULL | NULL) */
1605 length += ((realm)? realm->length + 2: 1);
1607 if ((*princ = calloc(1, length)) == NULL)
1608 return KSSL_CTX_ERR;
1611 for (i = 0; i < nentities; i++)
1613 strncat(*princ, entity[i].data, entity[i].length);
1614 if (i < nentities-1)
1616 strcat (*princ, "/");
1621 strcat (*princ, "@");
1622 (void) strncat(*princ, realm->data, realm->length);
1630 /* Set one of the plain (char *) string members of the kssl_ctx struct.
1631 ** Default values should be:
1632 ** which == KSSL_SERVICE => "khost" (KRB5SVC)
1633 ** which == KSSL_KEYTAB => "/etc/krb5.keytab" (KRB5KEYTAB)
1636 kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text)
1640 if (!kssl_ctx) return KSSL_CTX_ERR;
1644 case KSSL_SERVICE: string = &kssl_ctx->service_name; break;
1645 case KSSL_SERVER: string = &kssl_ctx->service_host; break;
1646 case KSSL_CLIENT: string = &kssl_ctx->client_princ; break;
1647 case KSSL_KEYTAB: string = &kssl_ctx->keytab_file; break;
1648 default: return KSSL_CTX_ERR; break;
1650 if (*string) free(*string);
1658 if ((*string = calloc(1, strlen(text) + 1)) == NULL)
1659 return KSSL_CTX_ERR;
1661 strcpy(*string, text);
1667 /* Copy the Kerberos session key from a (krb5_keyblock *) to a kssl_ctx
1668 ** struct. Clear kssl_ctx->key if Kerberos session key is NULL.
1671 kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session)
1674 krb5_enctype enctype;
1675 krb5_octet FAR *contents = NULL;
1677 if (!kssl_ctx) return KSSL_CTX_ERR;
1681 OPENSSL_cleanse(kssl_ctx->key, kssl_ctx->length);
1682 free(kssl_ctx->key);
1689 length = session->keyvalue->length;
1690 enctype = session->keytype;
1691 contents = session->keyvalue->contents;
1693 length = session->length;
1694 enctype = session->enctype;
1695 contents = session->contents;
1697 kssl_ctx->enctype = enctype;
1698 kssl_ctx->length = length;
1702 kssl_ctx->enctype = ENCTYPE_UNKNOWN;
1703 kssl_ctx->length = 0;
1707 if ((kssl_ctx->key =
1708 (krb5_octet FAR *) calloc(1, kssl_ctx->length)) == NULL)
1710 kssl_ctx->length = 0;
1711 return KSSL_CTX_ERR;
1714 memcpy(kssl_ctx->key, contents, length);
1720 /* Display contents of kssl_ctx struct
1723 kssl_ctx_show(KSSL_CTX *kssl_ctx)
1727 printf("kssl_ctx: ");
1728 if (kssl_ctx == NULL)
1734 printf("%p\n", (void *)kssl_ctx);
1736 printf("\tservice:\t%s\n",
1737 (kssl_ctx->service_name)? kssl_ctx->service_name: "NULL");
1738 printf("\tclient:\t%s\n",
1739 (kssl_ctx->client_princ)? kssl_ctx->client_princ: "NULL");
1740 printf("\tserver:\t%s\n",
1741 (kssl_ctx->service_host)? kssl_ctx->service_host: "NULL");
1742 printf("\tkeytab:\t%s\n",
1743 (kssl_ctx->keytab_file)? kssl_ctx->keytab_file: "NULL");
1744 printf("\tkey [%d:%d]:\t",
1745 kssl_ctx->enctype, kssl_ctx->length);
1747 for (i=0; i < kssl_ctx->length && kssl_ctx->key; i++)
1749 printf("%02x", kssl_ctx->key[i]);
1756 kssl_keytab_is_available(KSSL_CTX *kssl_ctx)
1758 krb5_context krb5context = NULL;
1759 krb5_keytab krb5keytab = NULL;
1760 krb5_keytab_entry entry;
1761 krb5_principal princ = NULL;
1762 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1765 if ((krb5rc = krb5_init_context(&krb5context)))
1768 /* kssl_ctx->keytab_file == NULL ==> use Kerberos default
1770 if (kssl_ctx->keytab_file)
1772 krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file,
1779 krb5rc = krb5_kt_default(krb5context,&krb5keytab);
1784 /* the host key we are looking for */
1785 krb5rc = krb5_sname_to_principal(krb5context, NULL,
1786 kssl_ctx->service_name ? kssl_ctx->service_name: KRB5SVC,
1787 KRB5_NT_SRV_HST, &princ);
1789 krb5rc = krb5_kt_get_entry(krb5context, krb5keytab,
1792 0 /* IGNORE_ENCTYPE */,
1794 if ( krb5rc == KRB5_KT_NOTFOUND ) {
1797 } else if ( krb5rc )
1800 krb5_kt_free_entry(krb5context, &entry);
1804 if (krb5keytab) krb5_kt_close(krb5context, krb5keytab);
1805 if (princ) krb5_free_principal(krb5context, princ);
1806 if (krb5context) krb5_free_context(krb5context);
1811 kssl_tgt_is_available(KSSL_CTX *kssl_ctx)
1813 krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
1814 krb5_context krb5context = NULL;
1815 krb5_ccache krb5ccdef = NULL;
1816 krb5_creds krb5creds, *krb5credsp = NULL;
1819 memset((char *)&krb5creds, 0, sizeof(krb5creds));
1824 if (!kssl_ctx->service_host)
1827 if ((krb5rc = krb5_init_context(&krb5context)) != 0)
1830 if ((krb5rc = krb5_sname_to_principal(krb5context,
1831 kssl_ctx->service_host,
1832 (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
1833 KRB5_NT_SRV_HST, &krb5creds.server)) != 0)
1836 if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0)
1839 if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef,
1840 &krb5creds.client)) != 0)
1843 if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef,
1844 &krb5creds, &krb5credsp)) != 0)
1851 kssl_ctx_show(kssl_ctx);
1852 #endif /* KSSL_DEBUG */
1854 if (krb5creds.client) krb5_free_principal(krb5context, krb5creds.client);
1855 if (krb5creds.server) krb5_free_principal(krb5context, krb5creds.server);
1856 if (krb5context) krb5_free_context(krb5context);
1860 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_WIN32)
1861 void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data)
1867 #elif defined(KRB5_MIT_OLD11)
1869 krb5_xfree(data->data);
1873 krb5_free_data_contents(NULL, data);
1876 #endif /* !OPENSSL_SYS_WINDOWS && !OPENSSL_SYS_WIN32 */
1879 /* Given pointers to KerberosTime and struct tm structs, convert the
1880 ** KerberosTime string to struct tm. Note that KerberosTime is a
1881 ** ASN1_GENERALIZEDTIME value, constrained to GMT with no fractional
1882 ** seconds as defined in RFC 1510.
1883 ** Return pointer to the (partially) filled in struct tm on success,
1884 ** return NULL on failure.
1886 struct tm *k_gmtime(ASN1_GENERALIZEDTIME *gtime, struct tm *k_tm)
1890 if (!k_tm) return NULL;
1891 if (gtime == NULL || gtime->length < 14) return NULL;
1892 if (gtime->data == NULL) return NULL;
1894 p = (char *)>ime->data[14];
1896 c = *p; *p = '\0'; p -= 2; k_tm->tm_sec = atoi(p); *(p+2) = c;
1897 c = *p; *p = '\0'; p -= 2; k_tm->tm_min = atoi(p); *(p+2) = c;
1898 c = *p; *p = '\0'; p -= 2; k_tm->tm_hour = atoi(p); *(p+2) = c;
1899 c = *p; *p = '\0'; p -= 2; k_tm->tm_mday = atoi(p); *(p+2) = c;
1900 c = *p; *p = '\0'; p -= 2; k_tm->tm_mon = atoi(p)-1; *(p+2) = c;
1901 c = *p; *p = '\0'; p -= 4; k_tm->tm_year = atoi(p)-1900; *(p+4) = c;
1907 /* Helper function for kssl_validate_times().
1908 ** We need context->clockskew, but krb5_context is an opaque struct.
1909 ** So we try to sneek the clockskew out through the replay cache.
1910 ** If that fails just return a likely default (300 seconds).
1912 krb5_deltat get_rc_clockskew(krb5_context context)
1915 krb5_deltat clockskew;
1917 if (krb5_rc_default(context, &rc)) return KSSL_CLOCKSKEW;
1918 if (krb5_rc_initialize(context, rc, 0)) return KSSL_CLOCKSKEW;
1919 if (krb5_rc_get_lifespan(context, rc, &clockskew)) {
1920 clockskew = KSSL_CLOCKSKEW;
1922 (void) krb5_rc_destroy(context, rc);
1927 /* kssl_validate_times() combines (and more importantly exposes)
1928 ** the MIT KRB5 internal function krb5_validate_times() and the
1929 ** in_clock_skew() macro. The authenticator client time is checked
1930 ** to be within clockskew secs of the current time and the current
1931 ** time is checked to be within the ticket start and expire times.
1932 ** Either check may be omitted by supplying a NULL value.
1933 ** Returns 0 for valid times, SSL_R_KRB5* error codes otherwise.
1934 ** See Also: (Kerberos source)/krb5/lib/krb5/krb/valid_times.c
1937 krb5_error_code kssl_validate_times( krb5_timestamp atime,
1938 krb5_ticket_times *ttimes)
1941 krb5_timestamp start, now;
1943 krb5_context context;
1945 if ((rc = krb5_init_context(&context))) return SSL_R_KRB5_S_BAD_TICKET;
1946 skew = get_rc_clockskew(context);
1947 if ((rc = krb5_timeofday(context,&now))) return SSL_R_KRB5_S_BAD_TICKET;
1948 krb5_free_context(context);
1950 if (atime && labs(atime - now) >= skew) return SSL_R_KRB5_S_TKT_SKEW;
1952 if (! ttimes) return 0;
1954 start = (ttimes->starttime != 0)? ttimes->starttime: ttimes->authtime;
1955 if (start - now > skew) return SSL_R_KRB5_S_TKT_NYV;
1956 if ((now - ttimes->endtime) > skew) return SSL_R_KRB5_S_TKT_EXPIRED;
1959 printf("kssl_validate_times: %d |<- | %d - %d | < %d ->| %d\n",
1960 start, atime, now, skew, ttimes->endtime);
1961 #endif /* KSSL_DEBUG */
1967 /* Decode and decrypt given DER-encoded authenticator, then pass
1968 ** authenticator ctime back in *atimep (or 0 if time unavailable).
1969 ** Returns krb5_error_code and kssl_err on error. A NULL
1970 ** authenticator (authentp->length == 0) is not considered an error.
1971 ** Note that kssl_check_authent() makes use of the KRB5 session key;
1972 ** you must call kssl_sget_tkt() to get the key before calling this routine.
1974 krb5_error_code kssl_check_authent(
1975 /* IN */ KSSL_CTX *kssl_ctx,
1976 /* IN */ krb5_data *authentp,
1977 /* OUT */ krb5_timestamp *atimep,
1978 /* OUT */ KSSL_ERR *kssl_err )
1980 krb5_error_code krb5rc = 0;
1981 KRB5_ENCDATA *dec_authent = NULL;
1982 KRB5_AUTHENTBODY *auth = NULL;
1983 krb5_enctype enctype;
1984 EVP_CIPHER_CTX ciph_ctx;
1985 const EVP_CIPHER *enc = NULL;
1986 unsigned char iv[EVP_MAX_IV_LENGTH];
1987 const unsigned char *p;
1988 unsigned char *unenc_authent;
1989 int outl, unencbufsize;
1990 struct tm tm_time, *tm_l, *tm_g;
1991 time_t now, tl, tg, tr, tz_offset;
1993 EVP_CIPHER_CTX_init(&ciph_ctx);
1995 kssl_err_set(kssl_err, 0, "");
1997 #ifndef KRB5CHECKAUTH
2000 #if KRB5CHECKAUTH == 0
2003 #endif /* KRB5CHECKAUTH */
2005 if (authentp == NULL || authentp->length == 0) return 0;
2010 printf("kssl_check_authent: authenticator[%d]:\n",authentp->length);
2012 for (ui=0; ui < authentp->length; ui++) printf("%02x ",p[ui]);
2015 #endif /* KSSL_DEBUG */
2017 unencbufsize = 2 * authentp->length;
2018 if ((unenc_authent = calloc(1, unencbufsize)) == NULL)
2020 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2021 "Unable to allocate authenticator buffer.\n");
2022 krb5rc = KRB5KRB_ERR_GENERIC;
2026 p = (unsigned char *)authentp->data;
2027 if ((dec_authent = d2i_KRB5_ENCDATA(NULL, &p,
2028 (long) authentp->length)) == NULL)
2030 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2031 "Error decoding authenticator.\n");
2032 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2036 enctype = dec_authent->etype->data[0]; /* should = kssl_ctx->enctype */
2037 #if !defined(KRB5_MIT_OLD11)
2038 switch ( enctype ) {
2039 case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */
2040 case ENCTYPE_DES3_CBC_SHA:
2041 case ENCTYPE_DES3_CBC_RAW:
2042 krb5rc = 0; /* Skip, can't handle derived keys */
2046 enc = kssl_map_enc(enctype);
2047 memset(iv, 0, sizeof iv); /* per RFC 1510 */
2051 /* Disable kssl_check_authent for ENCTYPE_DES3_CBC_SHA1.
2052 ** This enctype indicates the authenticator was encrypted
2053 ** using key-usage derived keys which openssl cannot decrypt.
2058 if (!EVP_CipherInit(&ciph_ctx,enc,kssl_ctx->key,iv,0))
2060 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2061 "EVP_CipherInit error decrypting authenticator.\n");
2062 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2065 outl = dec_authent->cipher->length;
2066 if (!EVP_Cipher(&ciph_ctx,unenc_authent,dec_authent->cipher->data,outl))
2068 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2069 "EVP_Cipher error decrypting authenticator.\n");
2070 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2073 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
2076 printf("kssl_check_authent: decrypted authenticator[%d] =\n", outl);
2077 for (padl=0; padl < outl; padl++) printf("%02x ",unenc_authent[padl]);
2079 #endif /* KSSL_DEBUG */
2081 if ((p = kssl_skip_confound(enctype, unenc_authent)) == NULL)
2083 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2084 "confounded by authenticator.\n");
2085 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2088 outl -= p - unenc_authent;
2090 if ((auth = (KRB5_AUTHENTBODY *) d2i_KRB5_AUTHENT(NULL, &p,
2091 (long) outl))==NULL)
2093 kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
2094 "Error decoding authenticator body.\n");
2095 krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY;
2099 memset(&tm_time,0,sizeof(struct tm));
2100 if (k_gmtime(auth->ctime, &tm_time) &&
2101 ((tr = mktime(&tm_time)) != (time_t)(-1)))
2104 tm_l = localtime(&now); tl = mktime(tm_l);
2105 tm_g = gmtime(&now); tg = mktime(tm_g);
2106 tz_offset = tg - tl;
2108 *atimep = tr - tz_offset;
2112 printf("kssl_check_authent: returns %d for client time ", *atimep);
2113 if (auth && auth->ctime && auth->ctime->length && auth->ctime->data)
2114 printf("%.*s\n", auth->ctime->length, auth->ctime->data);
2115 else printf("NULL\n");
2116 #endif /* KSSL_DEBUG */
2119 if (auth) KRB5_AUTHENT_free((KRB5_AUTHENT *) auth);
2120 if (dec_authent) KRB5_ENCDATA_free(dec_authent);
2121 if (unenc_authent) free(unenc_authent);
2122 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
2127 /* Replaces krb5_build_principal_ext(), with varargs length == 2 (svc, host),
2128 ** because I dont't know how to stub varargs.
2129 ** Returns krb5_error_code == ENOMEM on alloc error, otherwise
2130 ** passes back newly constructed principal, which should be freed by caller.
2132 krb5_error_code kssl_build_principal_2(
2133 /* UPDATE */ krb5_context context,
2134 /* OUT */ krb5_principal *princ,
2135 /* IN */ int rlen, const char *realm,
2136 /* IN */ int slen, const char *svc,
2137 /* IN */ int hlen, const char *host)
2139 krb5_data *p_data = NULL;
2140 krb5_principal new_p = NULL;
2143 if ((p_data = (krb5_data *) calloc(2, sizeof(krb5_data))) == NULL ||
2144 (new_p = (krb5_principal) calloc(1, sizeof(krb5_principal_data)))
2147 new_p->data = p_data;
2149 if ((new_r = calloc(1, rlen + 1)) == NULL) goto err;
2150 memcpy(new_r, realm, rlen);
2151 krb5_princ_set_realm_length(context, new_p, rlen);
2152 krb5_princ_set_realm_data(context, new_p, new_r);
2154 if ((new_p->data[0].data = calloc(1, slen + 1)) == NULL) goto err;
2155 memcpy(new_p->data[0].data, svc, slen);
2156 new_p->data[0].length = slen;
2158 if ((new_p->data[1].data = calloc(1, hlen + 1)) == NULL) goto err;
2159 memcpy(new_p->data[1].data, host, hlen);
2160 new_p->data[1].length = hlen;
2162 krb5_princ_type(context, new_p) = KRB5_NT_UNKNOWN;
2167 if (new_p && new_p[0].data) free(new_p[0].data);
2168 if (new_p && new_p[1].data) free(new_p[1].data);
2169 if (new_p) free(new_p);
2170 if (new_r) free(new_r);
2175 #else /* !OPENSSL_NO_KRB5 */
2177 #if defined(PEDANTIC) || defined(OPENSSL_SYS_VMS)
2178 static int dummy=(int)&dummy;
2181 #endif /* !OPENSSL_NO_KRB5 */