xref: /freebsd/crypto/heimdal/lib/krb5/krb5_locl.h (revision ddfc6f84f24215b418af19260e9156219f6df03e)
1 /*
2  * Copyright (c) 1997-2006 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of the Institute nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 /* $Id$ */
37 
38 #ifndef __KRB5_LOCL_H__
39 #define __KRB5_LOCL_H__
40 
41 #include <config.h>
42 
43 #include <errno.h>
44 #include <ctype.h>
45 #include <string.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <limits.h>
49 
50 #include <krb5-types.h>
51 
52 #ifdef HAVE_SYS_TYPES_H
53 #include <sys/types.h>
54 #endif
55 #ifdef HAVE_SYS_MMAN_H
56 #include <sys/mman.h>
57 #endif
58 #ifdef HAVE_UNISTD_H
59 #include <unistd.h>
60 #endif
61 #ifdef HAVE_FCNTL_H
62 #include <fcntl.h>
63 #endif
64 
65 #if defined(HAVE_SYS_IOCTL_H) && SunOS != 40
66 #include <sys/ioctl.h>
67 #endif
68 #ifdef HAVE_PWD_H
69 #undef _POSIX_PTHREAD_SEMANTICS
70 /* This gets us the 5-arg getpwnam_r on Solaris 9.  */
71 #define _POSIX_PTHREAD_SEMANTICS
72 #include <pwd.h>
73 #endif
74 
75 #ifdef HAVE_SYS_PARAM_H
76 #include <sys/param.h>
77 #endif
78 #include <time.h>
79 #ifdef HAVE_SYS_TIME_H
80 #include <sys/time.h>
81 #endif
82 #ifdef HAVE_SYS_SELECT_H
83 #include <sys/select.h>
84 #endif
85 #ifdef HAVE_SYS_SOCKET_H
86 #include <sys/socket.h>
87 #endif
88 #ifdef HAVE_NETINET_IN_H
89 #include <netinet/in.h>
90 #endif
91 #ifdef HAVE_NETINET_IN6_H
92 #include <netinet/in6.h>
93 #endif
94 #ifdef HAVE_NETINET6_IN6_H
95 #include <netinet6/in6.h>
96 #endif
97 #ifdef HAVE_NETDB_H
98 #include <netdb.h>
99 #endif
100 #ifdef _AIX
101 struct ether_addr;
102 struct mbuf;
103 struct sockaddr_dl;
104 #endif
105 #ifdef HAVE_ARPA_INET_H
106 #include <arpa/inet.h>
107 #endif
108 #ifdef HAVE_ARPA_NAMESER_H
109 #include <arpa/nameser.h>
110 #endif
111 #ifdef HAVE_SYS_UIO_H
112 #include <sys/uio.h>
113 #endif
114 #ifdef HAVE_SYS_FILIO_H
115 #include <sys/filio.h>
116 #endif
117 #ifdef HAVE_SYS_FILE_H
118 #include <sys/file.h>
119 #endif
120 
121 #include <com_err.h>
122 
123 #include <heimbase.h>
124 
125 #define HEIMDAL_TEXTDOMAIN "heimdal_krb5"
126 
127 #ifdef LIBINTL
128 #include <libintl.h>
129 #define N_(x,y) dgettext(HEIMDAL_TEXTDOMAIN, x)
130 #else
131 #define N_(x,y) (x)
132 #define bindtextdomain(package, localedir)
133 #endif
134 
135 
136 #ifdef HAVE_CRYPT_H
137 #undef des_encrypt
138 #define des_encrypt wingless_pigs_mostly_fail_to_fly
139 #include <crypt.h>
140 #undef des_encrypt
141 #endif
142 
143 #ifdef HAVE_DOOR_CREATE
144 #include <door.h>
145 #endif
146 
147 #include <roken.h>
148 #include <parse_time.h>
149 #include <base64.h>
150 
151 #include <wind.h>
152 
153 #define HC_DEPRECATED_CRYPTO
154 #include "crypto-headers.h"
155 
156 
157 #include <krb5_asn1.h>
158 
159 struct send_to_kdc;
160 
161 /* XXX glue for pkinit */
162 struct hx509_certs_data;
163 struct krb5_pk_identity;
164 struct krb5_pk_cert;
165 struct ContentInfo;
166 struct AlgorithmIdentifier;
167 typedef struct krb5_pk_init_ctx_data *krb5_pk_init_ctx;
168 struct krb5_dh_moduli;
169 
170 /* v4 glue */
171 struct _krb5_krb_auth_data;
172 
173 #include <der.h>
174 
175 #include <krb5.h>
176 #include <krb5_err.h>
177 #include <asn1_err.h>
178 #ifdef PKINIT
179 #include <hx509.h>
180 #endif
181 
182 #include "crypto.h"
183 
184 #include <krb5-private.h>
185 
186 #include "heim_threads.h"
187 
188 #define ALLOC(X, N) (X) = calloc((N), sizeof(*(X)))
189 #define ALLOC_SEQ(X, N) do { (X)->len = (N); ALLOC((X)->val, (N)); } while(0)
190 
191 #ifndef __func__
192 #define __func__ "unknown-function"
193 #endif
194 
195 #define krb5_einval(context, argnum) _krb5_einval((context), __func__, (argnum))
196 
197 #ifndef PATH_SEP
198 #define PATH_SEP ":"
199 #endif
200 
201 /* should this be public? */
202 #define KEYTAB_DEFAULT "FILE:" SYSCONFDIR "/krb5.keytab"
203 #define KEYTAB_DEFAULT_MODIFY "FILE:" SYSCONFDIR "/krb5.keytab"
204 
205 
206 #define MODULI_FILE SYSCONFDIR "/krb5.moduli"
207 
208 #ifndef O_BINARY
209 #define O_BINARY 0
210 #endif
211 
212 #ifndef O_CLOEXEC
213 #define O_CLOEXEC 0
214 #endif
215 
216 #ifndef SOCK_CLOEXEC
217 #define SOCK_CLOEXEC 0
218 #endif
219 
220 
221 #define KRB5_BUFSIZ 2048
222 
223 typedef enum {
224     KRB5_INIT_CREDS_TRISTATE_UNSET = 0,
225     KRB5_INIT_CREDS_TRISTATE_TRUE,
226     KRB5_INIT_CREDS_TRISTATE_FALSE
227 } krb5_get_init_creds_tristate;
228 
229 struct _krb5_get_init_creds_opt_private {
230     int refcount;
231     /* ENC_TIMESTAMP */
232     const char *password;
233     krb5_s2k_proc key_proc;
234     /* PA_PAC_REQUEST */
235     krb5_get_init_creds_tristate req_pac;
236     /* PKINIT */
237     krb5_pk_init_ctx pk_init_ctx;
238     krb5_get_init_creds_tristate addressless;
239     int flags;
240 #define KRB5_INIT_CREDS_CANONICALIZE		1
241 #define KRB5_INIT_CREDS_NO_C_CANON_CHECK	2
242 #define KRB5_INIT_CREDS_NO_C_NO_EKU_CHECK	4
243 #define KRB5_INIT_CREDS_PKINIT_KX_VALID		32
244     struct {
245         krb5_gic_process_last_req func;
246         void *ctx;
247     } lr;
248 };
249 
250 typedef uint32_t krb5_enctype_set;
251 
252 typedef struct krb5_context_data {
253     krb5_enctype *etypes;
254     krb5_enctype *etypes_des;/* deprecated */
255     krb5_enctype *as_etypes;
256     krb5_enctype *tgs_etypes;
257     krb5_enctype *permitted_enctypes;
258     char **default_realms;
259     time_t max_skew;
260     time_t kdc_timeout;
261     unsigned max_retries;
262     int32_t kdc_sec_offset;
263     int32_t kdc_usec_offset;
264     krb5_config_section *cf;
265     struct et_list *et_list;
266     struct krb5_log_facility *warn_dest;
267     struct krb5_log_facility *debug_dest;
268     const krb5_cc_ops **cc_ops;
269     int num_cc_ops;
270     const char *http_proxy;
271     const char *time_fmt;
272     krb5_boolean log_utc;
273     const char *default_keytab;
274     const char *default_keytab_modify;
275     krb5_boolean use_admin_kdc;
276     krb5_addresses *extra_addresses;
277     krb5_boolean scan_interfaces;	/* `ifconfig -a' */
278     krb5_boolean srv_lookup;		/* do SRV lookups */
279     krb5_boolean srv_try_txt;		/* try TXT records also */
280     int32_t fcache_vno;			/* create cache files w/ this
281                                            version */
282     int num_kt_types;			/* # of registered keytab types */
283     struct krb5_keytab_data *kt_types;  /* registered keytab types */
284     const char *date_fmt;
285     char *error_string;
286     krb5_error_code error_code;
287     krb5_addresses *ignore_addresses;
288     char *default_cc_name;
289     char *default_cc_name_env;
290     int default_cc_name_set;
291     void *mutex;			/* protects error_string/error_buf */
292     int large_msg_size;
293     int flags;
294 #define KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME	1
295 #define KRB5_CTX_F_CHECK_PAC			2
296 #define KRB5_CTX_F_HOMEDIR_ACCESS		4
297 #define KRB5_CTX_F_SOCKETS_INITIALIZED          8
298 #define KRB5_CTX_F_RD_REQ_IGNORE		16
299     struct send_to_kdc *send_to_kdc;
300 #ifdef PKINIT
301     hx509_context hx509ctx;
302 #endif
303 } krb5_context_data;
304 
305 #ifndef KRB5_USE_PATH_TOKENS
306 #define KRB5_DEFAULT_CCNAME_FILE "FILE:/tmp/krb5cc_%{uid}"
307 #else
308 #define KRB5_DEFAULT_CCNAME_FILE "FILE:%{TEMP}/krb5cc_%{uid}"
309 #endif
310 #define KRB5_DEFAULT_CCNAME_API "API:"
311 #define KRB5_DEFAULT_CCNAME_KCM_KCM "KCM:%{uid}"
312 #define KRB5_DEFAULT_CCNAME_KCM_API "API:%{uid}"
313 
314 #define EXTRACT_TICKET_ALLOW_CNAME_MISMATCH		1
315 #define EXTRACT_TICKET_ALLOW_SERVER_MISMATCH		2
316 #define EXTRACT_TICKET_MATCH_REALM			4
317 #define EXTRACT_TICKET_AS_REQ				8
318 #define EXTRACT_TICKET_TIMESYNC				16
319 
320 /*
321  * Configurable options
322  */
323 
324 #ifndef KRB5_DEFAULT_CCTYPE
325 #ifdef __APPLE__
326 #define KRB5_DEFAULT_CCTYPE (&krb5_acc_ops)
327 #else
328 #define KRB5_DEFAULT_CCTYPE (&krb5_fcc_ops)
329 #endif
330 #endif
331 
332 #ifndef KRB5_ADDRESSLESS_DEFAULT
333 #define KRB5_ADDRESSLESS_DEFAULT TRUE
334 #endif
335 
336 #ifndef KRB5_FORWARDABLE_DEFAULT
337 #define KRB5_FORWARDABLE_DEFAULT TRUE
338 #endif
339 
340 #ifdef PKINIT
341 
342 struct krb5_pk_identity {
343     hx509_verify_ctx verify_ctx;
344     hx509_certs certs;
345     hx509_cert cert;
346     hx509_certs anchors;
347     hx509_certs certpool;
348     hx509_revoke_ctx revokectx;
349     int flags;
350 #define PKINIT_BTMM 1
351 };
352 
353 enum krb5_pk_type {
354     PKINIT_WIN2K = 1,
355     PKINIT_27 = 2
356 };
357 
358 #endif /* PKINIT */
359 
360 #endif /* __KRB5_LOCL_H__ */
361