2 * $Id: krb.h,v 1.2 2001/12/04 02:06:08 rjs3 Exp $
4 * Copyright 1987, 1988 by the Massachusetts Institute of Technology.
6 * For copying and distribution information, please see the file
9 * Include file for the Kerberos library.
12 #if !defined (__STDC__) && !defined(_MSC_VER)
25 #if defined(__cplusplus)
26 #define __BEGIN_DECLS extern "C" {
27 #define __END_DECLS };
34 #if defined (__STDC__) || defined (_MSC_VER)
46 /* Need some defs from des.h */
47 #if !defined(NOPROTO) && !defined(__STDC__)
52 /* CNS compatibility ahead! */
54 #define KRB_INT32 int32_t
57 #define KRB_UINT32 u_int32_t
60 /* Global library variables. */
61 extern int krb_ignore_ip_address; /* To turn off IP address comparison */
62 extern int krb_no_long_lifetimes; /* To disable AFS compatible lifetimes */
64 #define HOST_BYTE_ORDER (* (char *) &krbONE)
67 extern int krb_ap_req_debug;
68 extern int krb_dns_debug;
71 /* Text describing error codes */
72 #define MAX_KRB_ERRORS 256
73 extern const char *krb_err_txt[MAX_KRB_ERRORS];
75 /* General definitions */
80 * Kerberos specific definitions
82 * KRBLOG is the log file for the kerberos master server. KRB_CONF is
83 * the configuration file where different host machines running master
84 * and slave servers can be found. KRB_MASTER is the name of the
85 * machine with the master database. The admin_server runs on this
86 * machine, and all changes to the db (as opposed to read-only
87 * requests, which can go to slaves) must go to it. KRB_HOST is the
88 * default machine * when looking for a kerberos slave server. Other
89 * possibilities are * in the KRB_CONF file. KRB_REALM is the name of
93 /* /etc/kerberosIV is only for backwards compatibility, don't use it! */
95 #define KRB_CONF "/etc/krb.conf"
98 #define KRB_RLM_TRANS "/etc/krb.realms"
100 #ifndef KRB_CNF_FILES
101 #define KRB_CNF_FILES { KRB_CONF, "/etc/kerberosIV/krb.conf", 0}
103 #ifndef KRB_RLM_FILES
104 #define KRB_RLM_FILES { KRB_RLM_TRANS, "/etc/kerberosIV/krb.realms", 0}
107 #define KRB_EQUIV "/etc/krb.equiv"
109 #define KRB_MASTER "kerberos"
111 #define KRB_REALM (krb_get_default_realm())
114 /* The maximum sizes for aname, realm, sname, and instance +1 */
119 /* Leave space for quoting */
120 #define MAX_K_NAME_SZ (2*ANAME_SZ + 2*INST_SZ + 2*REALM_SZ - 3)
123 #define MSG_TYPE_SZ 1
124 #define DATE_SZ 26 /* RTI date output */
126 #define MAX_HSTNM 100 /* for compatibility */
128 typedef struct krb_principal{
130 char instance[INST_SZ];
131 char realm[REALM_SZ];
134 #ifndef DEFAULT_TKT_LIFE /* allow compile-time override */
135 /* default lifetime for krb_mk_req & co., 10 hrs */
136 #define DEFAULT_TKT_LIFE 141
139 #define KRB_TICKET_GRANTING_TICKET "krbtgt"
141 /* Definition of text structure used to pass text around */
142 #define MAX_KTXT_LEN 1250
145 unsigned int length; /* Length of the text */
146 unsigned char dat[MAX_KTXT_LEN]; /* The data itself */
147 u_int32_t mbz; /* zero to catch runaway strings */
150 typedef struct ktext *KTEXT;
151 typedef struct ktext KTEXT_ST;
154 /* Definitions for send_to_kdc */
155 #define CLIENT_KRB_TIMEOUT 4 /* time between retries */
156 #define CLIENT_KRB_RETRY 5 /* retry this many times */
157 #define CLIENT_KRB_BUFLEN 512 /* max unfragmented packet */
159 /* Definitions for ticket file utilities */
163 /* Parameters for rd_ap_req */
164 /* Maximum alloable clock skew in seconds */
165 #define CLOCK_SKEW 5*60
166 /* Filename for readservkey */
168 #define KEYFILE "/etc/srvtab"
171 /* Structure definition for rd_ap_req */
174 unsigned char k_flags; /* Flags from ticket */
175 char pname[ANAME_SZ]; /* Principal's name */
176 char pinst[INST_SZ]; /* His Instance */
177 char prealm[REALM_SZ]; /* His Realm */
178 u_int32_t checksum; /* Data checksum (opt) */
179 des_cblock session; /* Session Key */
180 int life; /* Life of ticket */
181 u_int32_t time_sec; /* Time ticket issued */
182 u_int32_t address; /* Address in ticket */
183 KTEXT_ST reply; /* Auth reply (opt) */
186 typedef struct auth_dat AUTH_DAT;
188 /* Structure definition for credentials returned by get_cred */
191 char service[ANAME_SZ]; /* Service name */
192 char instance[INST_SZ]; /* Instance */
193 char realm[REALM_SZ]; /* Auth domain */
194 des_cblock session; /* Session key */
195 int lifetime; /* Lifetime */
196 int kvno; /* Key version number */
197 KTEXT_ST ticket_st; /* The ticket itself */
198 int32_t issue_date; /* The issue time */
199 char pname[ANAME_SZ]; /* Principal's name */
200 char pinst[INST_SZ]; /* Principal's instance */
203 typedef struct credentials CREDENTIALS;
205 /* Structure definition for rd_private_msg and rd_safe_msg */
208 unsigned char *app_data; /* pointer to appl data */
209 u_int32_t app_length; /* length of appl data */
210 u_int32_t hash; /* hash to lookup replay */
211 int swap; /* swap bytes? */
212 int32_t time_sec; /* msg timestamp seconds */
213 unsigned char time_5ms; /* msg timestamp 5ms units */
216 typedef struct msg_dat MSG_DAT;
221 enum krb_host_proto { PROTO_UDP, PROTO_TCP, PROTO_HTTP } proto;
226 /* Location of ticket file for save_cred and get_cred */
227 #define TKT_FILE tkt_string()
228 #define TKT_ROOT "/tmp/tkt"
230 /* Error codes returned from the KDC */
231 #define KDC_OK 0 /* Request OK */
232 #define KDC_NAME_EXP 1 /* Principal expired */
233 #define KDC_SERVICE_EXP 2 /* Service expired */
234 #define KDC_AUTH_EXP 3 /* Auth expired */
235 #define KDC_PKT_VER 4 /* Protocol version unknown */
236 #define KDC_P_MKEY_VER 5 /* Wrong master key version */
237 #define KDC_S_MKEY_VER 6 /* Wrong master key version */
238 #define KDC_BYTE_ORDER 7 /* Byte order unknown */
239 #define KDC_PR_UNKNOWN 8 /* Principal unknown */
240 #define KDC_PR_N_UNIQUE 9 /* Principal not unique */
241 #define KDC_NULL_KEY 10 /* Principal has null key */
242 #define KDC_GEN_ERR 20 /* Generic error from KDC */
245 /* Values returned by get_credentials */
246 #define GC_OK 0 /* Retrieve OK */
247 #define RET_OK 0 /* Retrieve OK */
248 #define GC_TKFIL 21 /* Can't read ticket file */
249 #define RET_TKFIL 21 /* Can't read ticket file */
250 #define GC_NOTKT 22 /* Can't find ticket or TGT */
251 #define RET_NOTKT 22 /* Can't find ticket or TGT */
254 /* Values returned by mk_ap_req */
255 #define MK_AP_OK 0 /* Success */
256 #define MK_AP_TGTEXP 26 /* TGT Expired */
258 /* Values returned by rd_ap_req */
259 #define RD_AP_OK 0 /* Request authentic */
260 #define RD_AP_UNDEC 31 /* Can't decode authenticator */
261 #define RD_AP_EXP 32 /* Ticket expired */
262 #define RD_AP_NYV 33 /* Ticket not yet valid */
263 #define RD_AP_REPEAT 34 /* Repeated request */
264 #define RD_AP_NOT_US 35 /* The ticket isn't for us */
265 #define RD_AP_INCON 36 /* Request is inconsistent */
266 #define RD_AP_TIME 37 /* delta_t too big */
267 #define RD_AP_BADD 38 /* Incorrect net address */
268 #define RD_AP_VERSION 39 /* protocol version mismatch */
269 #define RD_AP_MSG_TYPE 40 /* invalid msg type */
270 #define RD_AP_MODIFIED 41 /* message stream modified */
271 #define RD_AP_ORDER 42 /* message out of order */
272 #define RD_AP_UNAUTHOR 43 /* unauthorized request */
274 /* Values returned by get_pw_tkt */
275 #define GT_PW_OK 0 /* Got password changing tkt */
276 #define GT_PW_NULL 51 /* Current PW is null */
277 #define GT_PW_BADPW 52 /* Incorrect current password */
278 #define GT_PW_PROT 53 /* Protocol Error */
279 #define GT_PW_KDCERR 54 /* Error returned by KDC */
280 #define GT_PW_NULLTKT 55 /* Null tkt returned by KDC */
283 /* Values returned by send_to_kdc */
284 #define SKDC_OK 0 /* Response received */
285 #define SKDC_RETRY 56 /* Retry count exceeded */
286 #define SKDC_CANT 57 /* Can't send request */
289 * Values returned by get_intkt
290 * (can also return SKDC_* and KDC errors)
293 #define INTK_OK 0 /* Ticket obtained */
294 #define INTK_W_NOTALL 61 /* Not ALL tickets returned */
295 #define INTK_BADPW 62 /* Incorrect password */
296 #define INTK_PROT 63 /* Protocol Error */
297 #define INTK_ERR 70 /* Other error */
299 /* Values returned by get_adtkt */
300 #define AD_OK 0 /* Ticket Obtained */
301 #define AD_NOTGT 71 /* Don't have tgt */
302 #define AD_INTR_RLM_NOTGT 72 /* Can't get inter-realm tgt */
304 /* Error codes returned by ticket file utilities */
305 #define NO_TKT_FIL 76 /* No ticket file found */
306 #define TKT_FIL_ACC 77 /* Couldn't access tkt file */
307 #define TKT_FIL_LCK 78 /* Couldn't lock ticket file */
308 #define TKT_FIL_FMT 79 /* Bad ticket file format */
309 #define TKT_FIL_INI 80 /* tf_init not called first */
311 /* Error code returned by kparse_name */
312 #define KNAME_FMT 81 /* Bad Kerberos name format */
314 /* Error code returned by krb_mk_safe */
315 #define SAFE_PRIV_ERROR -1 /* syscall error */
317 /* Defines for krb_sendauth and krb_recvauth */
319 #define KOPT_DONT_MK_REQ 0x00000001 /* don't call krb_mk_req */
320 #define KOPT_DO_MUTUAL 0x00000002 /* do mutual auth */
322 #define KOPT_DONT_CANON 0x00000004 /*
323 * don't canonicalize inst as
327 #define KOPT_IGNORE_PROTOCOL 0x0008
329 #define KRB_SENDAUTH_VLEN 8 /* length for version strings */
332 extern char *krb4_version;
334 typedef int (*key_proc_t) __P((char*, char*, char*, void*, des_cblock*));
336 typedef int (*decrypt_proc_t) __P((char*, char*, char*, void*,
337 key_proc_t, KTEXT*));
339 #include "krb-protos.h"
343 #endif /* __KRB_H__ */