kbx/keybox-defs.h

   1 /* keybox-defs.h - interal Keybox defintions
   2  *      Copyright (C) 2001, 2004 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG 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 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG 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 this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef KEYBOX_DEFS_H
  21 #define KEYBOX_DEFS_H 1
  22
  23 #ifdef GPG_ERR_SOURCE_DEFAULT
  24 #error GPG_ERR_SOURCE_DEFAULT already defined
  25 #endif
  26 #define GPG_ERR_SOURCE_DEFAULT  GPG_ERR_SOURCE_KEYBOX
  27 #include <gpg-error.h>
  28 #define map_assuan_err(a) \
  29         map_assuan_err_with_source (GPG_ERR_SOURCE_DEFAULT, (a))
  30
  31 #include <sys/types.h> /* off_t */
  32
  33 /* We include the type defintions from jnlib instead of defining our
  34    owns here.  This will not allow us build KBX in a standalone way
  35    but there is currently no need for it anyway.  Same goes for
  36    stringhelp.h which for example provides a replacement for stpcpy -
  37    fixme: Better the LIBOBJ mechnism. */
  38 #include "../jnlib/types.h"
  39 #include "../jnlib/stringhelp.h"
  40
  41 #include "keybox.h"
  42
  43
  44 enum {
  45   BLOBTYPE_EMPTY = 0,
  46   BLOBTYPE_HEADER = 1,
  47   BLOBTYPE_PGP = 2,
  48   BLOBTYPE_X509 = 3
  49 };
  50
  51
  52 typedef struct keyboxblob *KEYBOXBLOB;
  53
  54
  55 typedef struct keybox_name *KB_NAME;
  56 typedef struct keybox_name const *CONST_KB_NAME;
  57 struct keybox_name
  58 {
  59   /* Link to the next resources, so that we can walk all
  60      resources.  */
  61   KB_NAME next;
  62
  63   /* True if this is a keybox with secret keys.  */
  64   int secret;
  65
  66   /*DOTLOCK lockhd;*/
  67
  68   /* A table with all the handles accessing this resources.
  69      HANDLE_TABLE_SIZE gives the allocated length of this table unused
  70      entrues are set to NULL.  HANDLE_TABLE may be NULL. */
  71   KEYBOX_HANDLE *handle_table;
  72   size_t handle_table_size;
  73
  74   /* Not yet used.  */
  75   int is_locked;
  76
  77   /* Not yet used.  */
  78   int did_full_scan;
  79
  80   /* The name of the resource file. */
  81   char fname[1];
  82 };
  83
  84
  85
  86 struct keybox_handle {
  87   CONST_KB_NAME kb;
  88   int secret;             /* this is for a secret keybox */
  89   FILE *fp;
  90   int eof;
  91   int error;
  92   int ephemeral;
  93   struct {
  94     KEYBOXBLOB blob;
  95     off_t offset;
  96     size_t pk_no;
  97     size_t uid_no;
  98     unsigned int n_packets; /*used for delete and update*/
  99   } found;
 100   struct {
 101     char *name;
 102     char *pattern;
 103   } word_match;
 104 };
 105
 106
 107 /* Openpgp helper structures. */
 108 struct _keybox_openpgp_key_info
 109 {
 110   struct _keybox_openpgp_key_info *next;
 111   unsigned char keyid[8];
 112   int fprlen;  /* Either 16 or 20 */
 113   unsigned char fpr[20];
 114 };
 115
 116 struct _keybox_openpgp_uid_info
 117 {
 118   struct _keybox_openpgp_uid_info *next;
 119   size_t off;
 120   size_t len;
 121 };
 122
 123 struct _keybox_openpgp_info
 124 {
 125   int is_secret;        /* True if this is a secret key. */
 126   unsigned int nsubkeys;/* Total number of subkeys.  */
 127   unsigned int nuids;   /* Total number of user IDs in the keyblock. */
 128   unsigned int nsigs;   /* Total number of signatures in the keyblock. */
 129
 130   /* Note, we use 2 structs here to better cope with the most common
 131      use of having one primary and one subkey - this allows us to
 132      statically allocate this structure and only malloc stuff for more
 133      than one subkey. */
 134   struct _keybox_openpgp_key_info primary;
 135   struct _keybox_openpgp_key_info subkeys;
 136   struct _keybox_openpgp_uid_info uids;
 137 };
 138 typedef struct _keybox_openpgp_info *keybox_openpgp_info_t;
 139
 140
 141 /* Don't know whether this is needed: */
 142 /*  static struct { */
 143 /*    const char *homedir; */
 144 /*    int dry_run; */
 145 /*    int quiet; */
 146 /*    int verbose; */
 147 /*    int preserve_permissions; */
 148 /*  } keybox_opt; */
 149
 150 /*-- keybox-init.c --*/
 151 void _keybox_close_file (KEYBOX_HANDLE hd);
 152
 153
 154 /*-- keybox-blob.c --*/
 155 #ifdef KEYBOX_WITH_OPENPGP
 156   /* fixme */
 157 #endif /*KEYBOX_WITH_OPENPGP*/
 158 #ifdef KEYBOX_WITH_X509
 159 int _keybox_create_x509_blob (KEYBOXBLOB *r_blob, ksba_cert_t cert,
 160                               unsigned char *sha1_digest, int as_ephemeral);
 161 #endif /*KEYBOX_WITH_X509*/
 162
 163 int  _keybox_new_blob (KEYBOXBLOB *r_blob,
 164                        unsigned char *image, size_t imagelen,
 165                        off_t off);
 166 void _keybox_release_blob (KEYBOXBLOB blob);
 167 const unsigned char *_keybox_get_blob_image (KEYBOXBLOB blob, size_t *n);
 168 off_t _keybox_get_blob_fileoffset (KEYBOXBLOB blob);
 169 void _keybox_update_header_blob (KEYBOXBLOB blob);
 170
 171 /*-- keybox-openpgp.c --*/
 172 gpg_error_t _keybox_parse_openpgp (const unsigned char *image, size_t imagelen,
 173                                    size_t *nparsed,
 174                                    keybox_openpgp_info_t info);
 175 void _keybox_destroy_openpgp_info (keybox_openpgp_info_t info);
 176
 177
 178 /*-- keybox-file.c --*/
 179 int _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp);
 180 int _keybox_read_blob2 (KEYBOXBLOB *r_blob, FILE *fp, int *skipped_deleted);
 181 int _keybox_write_blob (KEYBOXBLOB blob, FILE *fp);
 182 int _keybox_write_header_blob (FILE *fp);
 183
 184 /*-- keybox-search.c --*/
 185 gpg_err_code_t _keybox_get_flag_location (const unsigned char *buffer,
 186                                           size_t length,
 187                                           int what,
 188                                           size_t *flag_off, size_t *flag_size);
 189
 190 /*-- keybox-dump.c --*/
 191 int _keybox_dump_blob (KEYBOXBLOB blob, FILE *fp);
 192 int _keybox_dump_file (const char *filename, int stats_only, FILE *outfp);
 193 int _keybox_dump_find_dups (const char *filename, int print_them, FILE *outfp);
 194 int _keybox_dump_cut_records (const char *filename, unsigned long from,
 195                               unsigned long to, FILE *outfp);
 196
 197
 198 /*-- keybox-util.c --*/
 199 void *_keybox_malloc (size_t n);
 200 void *_keybox_calloc (size_t n, size_t m);
 201 void *_keybox_realloc (void *p, size_t n);
 202 void  _keybox_free (void *p);
 203
 204 #define xtrymalloc(a)    _keybox_malloc ((a))
 205 #define xtrycalloc(a,b)  _keybox_calloc ((a),(b))
 206 #define xtryrealloc(a,b) _keybox_realloc((a),(b))
 207 #define xfree(a)         _keybox_free ((a))
 208
 209
 210 #define DIM(v) (sizeof(v)/sizeof((v)[0]))
 211 #define DIMof(type,member)   DIM(((type *)0)->member)
 212 #ifndef STR
 213 #  define STR(v) #v
 214 #endif
 215 #define STR2(v) STR(v)
 216
 217 /*
 218   a couple of handy macros
 219 */
 220
 221 #define return_if_fail(expr) do {                        \
 222     if (!(expr)) {                                       \
 223         fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
 224                  __FILE__, __LINE__, #expr );            \
 225         return;                                          \
 226     } } while (0)
 227 #define return_null_if_fail(expr) do {                   \
 228     if (!(expr)) {                                       \
 229         fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
 230                  __FILE__, __LINE__, #expr );            \
 231         return NULL;                                     \
 232     } } while (0)
 233 #define return_val_if_fail(expr,val) do {                \
 234     if (!(expr)) {                                       \
 235         fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
 236                  __FILE__, __LINE__, #expr );            \
 237         return (val);                                    \
 238     } } while (0)
 239 #define never_reached() do {                                   \
 240         fprintf (stderr, "%s:%d: oops; should never get here\n", \
 241                  __FILE__, __LINE__ );                         \
 242     } while (0)
 243
 244
 245 /* some macros to replace ctype ones and avoid locale problems */
 246 #define digitp(p)   (*(p) >= '0' && *(p) <= '9')
 247 #define hexdigitp(a) (digitp (a)                     \
 248                       || (*(a) >= 'A' && *(a) <= 'F')  \
 249                       || (*(a) >= 'a' && *(a) <= 'f'))
 250 /* the atoi macros assume that the buffer has only valid digits */
 251 #define atoi_1(p)   (*(p) - '0' )
 252 #define atoi_2(p)   ((atoi_1(p) * 10) + atoi_1((p)+1))
 253 #define atoi_4(p)   ((atoi_2(p) * 100) + atoi_2((p)+2))
 254 #define xtoi_1(p)   (*(p) <= '9'? (*(p)- '0'): \
 255                      *(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
 256 #define xtoi_2(p)   ((xtoi_1(p) * 16) + xtoi_1((p)+1))
 257
 258
 259 #endif /*KEYBOX_DEFS_H*/
 260
 261