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 #ifdef HAVE_SYS_TYPES_H
  37 #include <sys/types.h>
  38 #endif
  39
  40 #ifdef HAVE_SYS_SELECT_H
  41 #include <sys/select.h>
  42 #endif
  43
  44 #ifdef HAVE_SYS_SOCKET_H
  45 #include <sys/socket.h>
  46 #endif
  47
  48 #ifdef HAVE_SYS_IOCTL_H
  49 #include <sys/ioctl.h>
  50 #endif
  51
  52 #ifdef HAVE_SYS_STAT_H
  53 #include <sys/stat.h>
  54 #endif
  55
  56 #if HAVE_UNISTD_H
  57 #include <unistd.h>
  58 #endif
  59
  60 #ifdef HAVE_NETDB_H
  61 #include <netdb.h>
  62 #endif
  63
  64 #if defined HAVE_DECL_H_ERRNO && !HAVE_DECL_H_ERRNO
  65 //extern int h_errno;
  66 #endif
  67
  68 #ifdef HAVE_PWD_H
  69 #include <pwd.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 TIME_WITH_SYS_TIME
  81 # include <sys/time.h>
  82 # include <time.h>
  83 #else
  84 # if HAVE_SYS_TIME_H
  85 #  include <sys/time.h>
  86 # else
  87 #  include <time.h>
  88 # endif
  89 #endif
  90
  91 #if HAVE_STRING_H
  92 # if !STDC_HEADERS && HAVE_MEMORY_H
  93 #  include <memory.h>
  94 # endif
  95 # include <string.h>
  96 #endif
  97 #if HAVE_STRINGS_H
  98 # include <strings.h>
  99 #endif
 100
 101 #ifdef HAVE_SIGNAL_H
 102 #include <signal.h>
 103 #endif
 104
 105 #ifdef HAVE_NETINET_IN_H
 106 #include <netinet/in.h>
 107 #endif
 108 #ifdef HAVE_NETINET_IN6_H
 109 #include <netinet/in6.h>
 110 #endif
 111 #ifdef HAVE_ARPA_INET_H
 112 #include <arpa/inet.h>
 113 #endif
 114
 115 #ifdef HAVE_ARPA_NAMESER_H
 116 #include <arpa/nameser.h>
 117 #endif
 118 #ifdef HAVE_RESOLV_H
 119 #include <resolv.h>
 120 #endif
 121
 122 #include "gettext.h"
 123
 124 #include "setenv.h"
 125 #include "vasprintf.h"
 126 #include "xalloc.h"
 127 #include "xstrndup.h"
 128 #include "getdate.h"
 129 #include "base64.h"
 130 #include "xmemdup.h"
 131
 132 #include "shishi.h"
 133
 134 #define _(String) dgettext (PACKAGE, String)
 135 #define gettext_noop(String) String
 136 #define N_(String) gettext_noop (String)
 137
 138 #define GENERALIZEDTIME_TIME_LEN 15
 139 #define MAX_KEY_LEN 32
 140 #define MAX_RANDOM_LEN 32
 141 #define MAX_HASH_LEN 32
 142 #define MAX_CKSUM_LEN 32
 143
 144 #define SHISHI_VERBOSE_CRYPTO  (1<<1)
 145 #define SHISHI_VERBOSE_ASN1    (1<<2)
 146 #define SHISHI_VERBOSE_NOICE   (1<<3)
 147
 148 #define KRBTGT "krbtgt"
 149 #define PRINCIPAL_DELIMITER "/"
 150
 151 #define VERBOSEASN1(h) (h->verbose & SHISHI_VERBOSE_ASN1)
 152 #define VERBOSECRYPTO(h) (h->verbose & SHISHI_VERBOSE_CRYPTO)
 153 #define VERBOSENOICE(h) (h->verbose & SHISHI_VERBOSE_NOICE)
 154 #define VERBOSES (SHISHI_VERBOSE_ASN1 |         \
 155                   SHISHI_VERBOSE_CRYPTO |       \
 156                   SHISHI_VERBOSE_NOICE)
 157 #define VERBOSE(h) (h->verbose & ~VERBOSES)
 158
 159 #ifndef HOST_NAME_MAX
 160 #define HOST_NAME_MAX BUFSIZ
 161 #endif
 162
 163 enum {
 164   UDP,
 165   TCP,
 166   TLS
 167 };
 168
 169 struct Shishi_kdcinfo
 170 {
 171   char *name;
 172   struct sockaddr sockaddress;
 173   int protocol;
 174 };
 175
 176 struct Shishi_realminfo
 177 {
 178   char *name;
 179   struct Shishi_kdcinfo *kdcaddresses;
 180   size_t nkdcaddresses;
 181   char  **serverwildcards;
 182   size_t nserverwildcards;
 183 };
 184
 185 struct Shishi
 186 {
 187   Shishi_asn1 asn1;
 188   int verbose;
 189   char *default_realm;
 190   char *default_principal;
 191   size_t kdctimeout;
 192   size_t kdcretries;
 193   int ticketlife;
 194   int renewlife;
 195   int32_t *clientkdcetypes;
 196   size_t nclientkdcetypes;
 197   struct Shishi_realminfo *realminfos;
 198   size_t nrealminfos;
 199   char *kdc;
 200   char error[1024];
 201   char gztime_buf[40];
 202   char *userdirectory;
 203   char *usercfgfile;
 204   char *tktsdefaultfile;
 205   char *hostkeysdefaultfile;
 206   char *stringprocess;
 207   Shishi_tkts *tkts;
 208 };
 209
 210 #define BASE_DIR "/.shishi"
 211 #define TICKET_FILE BASE_DIR "/tickets"
 212 #define USERCFG_FILE BASE_DIR "/shishi.conf"
 213
 214 #define TICKETLIFE (60*60*8)    /* Work day */
 215 #define RENEWLIFE (60*60*24*7)  /* Week */
 216
 217 int
 218 _shishi_print_armored_data (Shishi * handle,
 219                             FILE * fh,
 220                             Shishi_asn1 asn1, char *asn1type, char *headers);
 221 int
 222 _shishi_save_data (Shishi * handle, FILE * fh, Shishi_asn1 asn1,
 223                    char *asn1type);
 224
 225 int
 226 _shishi_authenticator_input (Shishi * handle,
 227                              FILE * fh, Shishi_asn1 * authenticator,
 228                              int type);
 229 int
 230 _shishi_apreq_input (Shishi * handle, FILE * fh, Shishi_asn1 * apreq,
 231                      int type);
 232 int _shishi_aprep_input (Shishi * handle, FILE * fh, Shishi_asn1 * aprep,
 233                          int type);
 234 int _shishi_kdcreq_input (Shishi * handle, FILE * fh, Shishi_asn1 * asreq,
 235                           int type);
 236 int _shishi_kdcrep_input (Shishi * handle, FILE * fh, Shishi_asn1 * asrep,
 237                           int type);
 238 int _shishi_krberror_input (Shishi * handle, FILE * fh,
 239                             Shishi_asn1 * krberror, int type);
 240 int _shishi_encapreppart_input (Shishi * handle, FILE * fh,
 241                                 Shishi_asn1 * encapreppart, int type);
 242 int _shishi_safe_input (Shishi * handle, FILE * fh,
 243                         Shishi_asn1 * safe, int type);
 244
 245 Shishi_asn1 _shishi_asn1_read (void);
 246 int _shishi_cipher_init (void);
 247
 248 int
 249 shishi_asn1_integer2_field (Shishi * handle,
 250                             Shishi_asn1 node, unsigned long *i,
 251                             const char *field);
 252
 253 extern time_t xtime (time_t * t);
 254 extern int xgettimeofday (struct timeval *tv, struct timezone *tz);
 255
 256 extern struct Shishi_realminfo *shishi_realminfo (Shishi * handle,
 257                                                   const char *realm);
 258 extern struct Shishi_realminfo *shishi_realminfo_new (Shishi * handle,
 259                                                       char *realm);
 260
 261 #if defined(WITH_DMALLOC) && WITH_DMALLOC
 262 #include <dmalloc.h>
 263 #endif
 264
 265 /* older systems might not have these */
 266 #ifndef T_SRV
 267 # define T_SRV (33)
 268 #endif
 269
 270 typedef struct dnshost_st
 271 {
 272   struct dnshost_st *next;
 273
 274   unsigned int type;
 275   unsigned int class;
 276   unsigned int ttl;
 277
 278   void *rr;
 279 } *dnshost_t;
 280
 281 typedef struct dns_srv_st
 282 {
 283   unsigned int priority;
 284   unsigned int weight;
 285   unsigned int port;
 286   unsigned int rweight;
 287
 288   char name[256];
 289 } *dns_srv_t;
 290
 291 dnshost_t _shishi_resolv (const char *zone, unsigned int type);
 292 void _shishi_resolv_free (dnshost_t dns);
 293
 294 #endif /* _INTERNAL_H */