lib/internal.h

   1 /* internal.h   internal header file for shishi
   2  * Copyright (C) 2002, 2003  Simon Josefsson
   3  *
   4  * This file is part of Shishi.
   5  *
   6  * Shishi is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Shishi is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Shishi; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef _INTERNAL_H
  23 #define _INTERNAL_H
  24
  25 #if HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #ifdef STDC_HEADERS
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <stdarg.h>
  33 #include <ctype.h>
  34 #endif
  35
  36 #if HAVE_UNISTD_H
  37 #include <unistd.h>
  38 #endif
  39
  40 #ifdef HAVE_NETDB_H
  41 #include <netdb.h>
  42 #endif
  43
  44 #if defined HAVE_DECL_H_ERRNO && !HAVE_DECL_H_ERRNO
  45 //extern int h_errno;
  46 #endif
  47
  48 #ifdef HAVE_PWD_H
  49 #include <pwd.h>
  50 #endif
  51
  52 #ifdef HAVE_SYS_TYPES_H
  53 #include <sys/types.h>
  54 #endif
  55
  56 #ifdef HAVE_SYS_SELECT_H
  57 #include <sys/select.h>
  58 #endif
  59
  60 #ifdef HAVE_SYS_SOCKET_H
  61 #include <sys/socket.h>
  62 #endif
  63
  64 #ifdef HAVE_SYS_IOCTL_H
  65 #include <sys/ioctl.h>
  66 #endif
  67
  68 #ifdef HAVE_SYS_STAT_H
  69 #include <sys/stat.h>
  70 #endif
  71
  72 #ifdef HAVE_FCNTL_H
  73 #include <fcntl.h>
  74 #endif
  75
  76 #ifdef HAVE_ERRNO_H
  77 #include <errno.h>
  78 #endif
  79
  80 #if HAVE_INTTYPES_H
  81 # include <inttypes.h>
  82 #else
  83 # if HAVE_STDINT_H
  84 #  include <stdint.h>
  85 # endif
  86 #endif
  87
  88 #if TIME_WITH_SYS_TIME
  89 # include <sys/time.h>
  90 # include <time.h>
  91 #else
  92 # if HAVE_SYS_TIME_H
  93 #  include <sys/time.h>
  94 # else
  95 #  include <time.h>
  96 # endif
  97 #endif
  98
  99 #if HAVE_STRING_H
 100 # if !STDC_HEADERS && HAVE_MEMORY_H
 101 #  include <memory.h>
 102 # endif
 103 # include <string.h>
 104 #endif
 105 #if HAVE_STRINGS_H
 106 # include <strings.h>
 107 #endif
 108
 109 #ifdef HAVE_SIGNAL_H
 110 #include <signal.h>
 111 #endif
 112
 113 #ifdef HAVE_NETINET_IN_H
 114 #include <netinet/in.h>
 115 #endif
 116 #ifdef HAVE_NETINET_IN6_H
 117 #include <netinet/in6.h>
 118 #endif
 119 #ifdef HAVE_ARPA_INET_H
 120 #include <arpa/inet.h>
 121 #endif
 122
 123 #ifdef HAVE_ARPA_NAMESER_H
 124 #include <arpa/nameser.h>
 125 #endif
 126 #ifdef HAVE_RESOLV_H
 127 #include <resolv.h>
 128 #endif
 129
 130 #include "setenv.h"
 131 #include "vasprintf.h"
 132 #include "gettext.h"
 133 #include "xalloc.h"
 134 #include "shishi.h"
 135
 136 #define _(String) dgettext (PACKAGE, String)
 137 #define gettext_noop(String) String
 138 #define N_(String) gettext_noop (String)
 139
 140 #define GENERALIZEDTIME_TIME_LEN 15
 141 #define MAX_KEY_LEN 32
 142 #define MAX_RANDOM_LEN 32
 143 #define MAX_HASH_LEN 32
 144 #define MAX_CKSUM_LEN 32
 145
 146 #define SHISHI_VERBOSE_CRYPTO  (1<<1)
 147 #define SHISHI_VERBOSE_ASN1    (1<<2)
 148 #define SHISHI_VERBOSE_NOICE   (1<<3)
 149
 150 #define KRBTGT "krbtgt"
 151 #define PRINCIPAL_DELIMITER "/"
 152
 153 #define VERBOSEASN1(h) (h->verbose & SHISHI_VERBOSE_ASN1)
 154 #define VERBOSECRYPTO(h) (h->verbose & SHISHI_VERBOSE_CRYPTO)
 155 #define VERBOSENOICE(h) (h->verbose & SHISHI_VERBOSE_NOICE)
 156 #define VERBOSES (SHISHI_VERBOSE_ASN1 |         \
 157                   SHISHI_VERBOSE_CRYPTO |       \
 158                   SHISHI_VERBOSE_NOICE)
 159 #define VERBOSE(h) (h->verbose & ~VERBOSES)
 160
 161 #ifndef HOST_NAME_MAX
 162 #define HOST_NAME_MAX BUFSIZ
 163 #endif
 164
 165 struct Shishi_kdcinfo
 166 {
 167   char *name;
 168   struct sockaddr sockaddress;
 169 };
 170
 171 struct Shishi_realminfo
 172 {
 173   char *name;
 174   struct Shishi_kdcinfo *kdcaddresses;
 175   int nkdcaddresses;
 176 };
 177
 178 struct Shishi
 179 {
 180   Shishi_asn1 asn1;
 181   int verbose;
 182   char *default_realm;
 183   char *default_principal;
 184   int kdctimeout;
 185   int kdcretries;
 186   int32_t *clientkdcetypes;
 187   int nclientkdcetypes;
 188   struct Shishi_realminfo *realminfos;
 189   int nrealminfos;
 190   char *kdc;
 191   char error[1024];
 192   char gztime_buf[40];
 193   char *userdirectory;
 194   char *usercfgfile;
 195   char *tktsdefaultfile;
 196   char *hostkeysdefaultfile;
 197   char *stringprocess;
 198   Shishi_tkts *tkts;
 199 };
 200
 201 #define BASE_DIR "/.shishi"
 202 #define TICKET_FILE BASE_DIR "/tickets"
 203 #define USERCFG_FILE BASE_DIR "/shishi.conf"
 204
 205 int
 206 _shishi_print_armored_data (Shishi * handle,
 207                             FILE * fh,
 208                             Shishi_asn1 asn1, char *asn1type, char *headers);
 209 int
 210 _shishi_save_data (Shishi * handle, FILE * fh, Shishi_asn1 asn1,
 211                    char *asn1type);
 212
 213 int
 214 _shishi_authenticator_input (Shishi * handle,
 215                              FILE * fh, Shishi_asn1 * authenticator,
 216                              int type);
 217 int
 218 _shishi_apreq_input (Shishi * handle, FILE * fh, Shishi_asn1 * apreq,
 219                      int type);
 220 int _shishi_aprep_input (Shishi * handle, FILE * fh, Shishi_asn1 * aprep,
 221                          int type);
 222 int _shishi_kdcreq_input (Shishi * handle, FILE * fh, Shishi_asn1 * asreq,
 223                           int type);
 224 int _shishi_kdcrep_input (Shishi * handle, FILE * fh, Shishi_asn1 * asrep,
 225                           int type);
 226 int _shishi_krberror_input (Shishi * handle, FILE * fh,
 227                             Shishi_asn1 * krberror, int type);
 228 int _shishi_encapreppart_input (Shishi * handle, FILE * fh,
 229                                 Shishi_asn1 * encapreppart, int type);
 230 int _shishi_safe_input (Shishi * handle, FILE * fh,
 231                         Shishi_asn1 * safe, int type);
 232
 233 Shishi_asn1 _shishi_asn1_read (void);
 234 int _shishi_cipher_init (void);
 235
 236 int
 237 shishi_asn1_integer2_field (Shishi * handle,
 238                             Shishi_asn1 node, unsigned long *i,
 239                             const char *field);
 240
 241 #if defined(WITH_DMALLOC) && WITH_DMALLOC
 242 #include <dmalloc.h>
 243 #endif
 244
 245 /* older systems might not have these */
 246 #ifndef T_SRV
 247 # define T_SRV (33)
 248 #endif
 249
 250 typedef struct dnshost_st
 251 {
 252   struct dnshost_st   *next;
 253
 254   unsigned int        type;
 255   unsigned int        class;
 256   unsigned int        ttl;
 257
 258   void                *rr;
 259 } *dnshost_t;
 260
 261 typedef struct dns_srv_st
 262 {
 263   unsigned int        priority;
 264   unsigned int        weight;
 265   unsigned int        port;
 266   unsigned int        rweight;
 267
 268   char                name[256];
 269 } *dns_srv_t;
 270
 271 dnshost_t _shishi_resolv (const char *zone, unsigned int type);
 272 void _shishi_resolv_free (dnshost_t dns);
 273
 274 #endif /* _INTERNAL_H */