g10/main.h

   1 /* main.h
   2  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   3  *               2006 Free Software Foundation, Inc.
   4  *
   5  * This file is part of GnuPG.
   6  *
   7  * GnuPG is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * GnuPG is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20 #ifndef G10_MAIN_H
  21 #define G10_MAIN_H
  22
  23 #include "types.h"
  24 #include "iobuf.h"
  25 #include "cipher.h"
  26 #include "keydb.h"
  27 #include "util.h"
  28
  29
  30 /* It could be argued that the default cipher should be 3DES rather
  31    than CAST5, and the default compression should be 0
  32    (i.e. uncompressed) rather than 1 (zip).  However, the real world
  33    issues of speed and size come into play here. */
  34
  35 #define DEFAULT_CIPHER_ALGO     CIPHER_ALGO_CAST5
  36 #define DEFAULT_DIGEST_ALGO     DIGEST_ALGO_SHA1
  37 #define DEFAULT_COMPRESS_ALGO   COMPRESS_ALGO_ZIP
  38 #define DEFAULT_S2K_DIGEST_ALGO DIGEST_ALGO_SHA1
  39
  40 #define S2K_DIGEST_ALGO (opt.s2k_digest_algo?opt.s2k_digest_algo:DEFAULT_S2K_DIGEST_ALGO)
  41
  42 typedef struct
  43 {
  44   int header_okay;
  45   PK_LIST pk_list;
  46   DEK *symkey_dek;
  47   STRING2KEY *symkey_s2k;
  48   cipher_filter_context_t cfx;
  49 } encrypt_filter_context_t;
  50
  51 struct groupitem
  52 {
  53   char *name;
  54   strlist_t values;
  55   struct groupitem *next;
  56 };
  57
  58 /*-- gpg.c --*/
  59 extern int g10_errors_seen;
  60
  61 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
  62   void g10_exit(int rc) __attribute__ ((noreturn));
  63 #else
  64   void g10_exit(int rc);
  65 #endif
  66 void print_pubkey_algo_note( int algo );
  67 void print_cipher_algo_note( int algo );
  68 void print_digest_algo_note( int algo );
  69
  70 /*-- armor.c --*/
  71 char *make_radix64_string( const byte *data, size_t len );
  72
  73 /*-- misc.c --*/
  74 void trap_unaligned(void);
  75 int disable_core_dumps(void);
  76 void register_secured_file (const char *fname);
  77 void unregister_secured_file (const char *fname);
  78 int  is_secured_file (int fd);
  79 int  is_secured_filename (const char *fname);
  80 u16 checksum_u16( unsigned n );
  81 u16 checksum( byte *p, unsigned n );
  82 u16 checksum_mpi( gcry_mpi_t a );
  83 u32 buffer_to_u32( const byte *buffer );
  84 const byte *get_session_marker( size_t *rlen );
  85 int openpgp_cipher_test_algo( int algo );
  86 int openpgp_pk_test_algo( int algo );
  87 int openpgp_pk_test_algo2 ( int algo, unsigned int use );
  88 int openpgp_pk_algo_usage ( int algo );
  89 int openpgp_md_test_algo( int algo );
  90
  91 #ifdef USE_IDEA
  92 void idea_cipher_warn( int show );
  93 #else
  94 #define idea_cipher_warn(a)
  95 #endif
  96
  97 struct expando_args
  98 {
  99   PKT_public_key *pk;
 100   PKT_secret_key *sk;
 101   byte imagetype;
 102 };
 103
 104 char *pct_expando(const char *string,struct expando_args *args);
 105 void deprecated_warning(const char *configname,unsigned int configlineno,
 106                         const char *option,const char *repl1,const char *repl2);
 107 void deprecated_command (const char *name);
 108 void obsolete_option (const char *configname, unsigned int configlineno,
 109                       const char *name);
 110
 111 int string_to_cipher_algo (const char *string);
 112 int string_to_digest_algo (const char *string);
 113
 114 const char *compress_algo_to_string(int algo);
 115 int string_to_compress_algo(const char *string);
 116 int check_compress_algo(int algo);
 117 int default_cipher_algo(void);
 118 int default_compress_algo(void);
 119 const char *compliance_option_string(void);
 120 void compliance_failure(void);
 121
 122 struct parse_options
 123 {
 124   char *name;
 125   unsigned int bit;
 126   char **value;
 127   char *help;
 128 };
 129
 130 char *optsep(char **stringp);
 131 char *argsplit(char *string);
 132 int parse_options(char *str,unsigned int *options,
 133                   struct parse_options *opts,int noisy);
 134 char *unescape_percent_string (const unsigned char *s);
 135 int has_invalid_email_chars (const char *s);
 136 int is_valid_mailbox (const char *name);
 137 const char *get_libexecdir (void);
 138 int path_access(const char *file,int mode);
 139
 140 /* Temporary helpers. */
 141 int pubkey_get_npkey( int algo );
 142 int pubkey_get_nskey( int algo );
 143 int pubkey_get_nsig( int algo );
 144 int pubkey_get_nenc( int algo );
 145 unsigned int pubkey_nbits( int algo, gcry_mpi_t *pkey );
 146 int mpi_print( FILE *fp, gcry_mpi_t a, int mode );
 147
 148
 149 /*-- helptext.c --*/
 150 void display_online_help( const char *keyword );
 151
 152 /*-- encode.c --*/
 153 int setup_symkey(STRING2KEY **symkey_s2k,DEK **symkey_dek);
 154 int encode_symmetric( const char *filename );
 155 int encode_store( const char *filename );
 156 int encode_crypt( const char *filename, strlist_t remusr, int use_symkey );
 157 void encode_crypt_files(int nfiles, char **files, strlist_t remusr);
 158 int encrypt_filter( void *opaque, int control,
 159                     iobuf_t a, byte *buf, size_t *ret_len);
 160
 161
 162 /*-- sign.c --*/
 163 int complete_sig( PKT_signature *sig, PKT_secret_key *sk, gcry_md_hd_t md );
 164 int sign_file( strlist_t filenames, int detached, strlist_t locusr,
 165                int do_encrypt, strlist_t remusr, const char *outfile );
 166 int clearsign_file( const char *fname, strlist_t locusr, const char *outfile );
 167 int sign_symencrypt_file (const char *fname, strlist_t locusr);
 168
 169 /*-- sig-check.c --*/
 170 int check_revocation_keys (PKT_public_key *pk, PKT_signature *sig);
 171 int check_backsig(PKT_public_key *main_pk,PKT_public_key *sub_pk,
 172                   PKT_signature *backsig);
 173 int check_key_signature( KBNODE root, KBNODE node, int *is_selfsig );
 174 int check_key_signature2( KBNODE root, KBNODE node, PKT_public_key *check_pk,
 175                           PKT_public_key *ret_pk, int *is_selfsig,
 176                           u32 *r_expiredate, int *r_expired );
 177
 178 /*-- delkey.c --*/
 179 int delete_keys( strlist_t names, int secret, int allow_both );
 180
 181 /*-- keyedit.c --*/
 182 void keyedit_menu( const char *username, strlist_t locusr,
 183                    strlist_t commands, int quiet, int seckey_check );
 184 void show_basic_key_info (KBNODE keyblock);
 185
 186 /*-- keygen.c --*/
 187 u32 parse_expire_string(const char *string);
 188 u32 ask_expire_interval(int object,const char *def_expire);
 189 u32 ask_expiredate(void);
 190 void generate_keypair( const char *fname, const char *card_serialno,
 191                        const char *backup_encryption_dir );
 192 int keygen_set_std_prefs (const char *string,int personal);
 193 PKT_user_id *keygen_get_std_prefs (void);
 194 int keygen_add_key_expire( PKT_signature *sig, void *opaque );
 195 int keygen_add_std_prefs( PKT_signature *sig, void *opaque );
 196 int keygen_upd_std_prefs( PKT_signature *sig, void *opaque );
 197 int keygen_add_keyserver_url(PKT_signature *sig, void *opaque);
 198 int keygen_add_notations(PKT_signature *sig,void *opaque);
 199 int keygen_add_revkey(PKT_signature *sig, void *opaque);
 200 int make_backsig(PKT_signature *sig,PKT_public_key *pk,
 201                  PKT_public_key *sub_pk,PKT_secret_key *sub_sk);
 202 int generate_subkeypair( KBNODE pub_keyblock, KBNODE sec_keyblock );
 203 #ifdef ENABLE_CARD_SUPPORT
 204 int generate_card_subkeypair (KBNODE pub_keyblock, KBNODE sec_keyblock,
 205                               int keyno, const char *serialno);
 206 int save_unprotected_key_to_card (PKT_secret_key *sk, int keyno);
 207 #endif
 208
 209 /*-- openfile.c --*/
 210 int overwrite_filep( const char *fname );
 211 char *make_outfile_name( const char *iname );
 212 char *ask_outfile_name( const char *name, size_t namelen );
 213 int   open_outfile( const char *iname, int mode, iobuf_t *a );
 214 iobuf_t open_sigfile( const char *iname, progress_filter_context_t *pfx );
 215 void try_make_homedir( const char *fname );
 216
 217 /*-- seskey.c --*/
 218 void make_session_key( DEK *dek );
 219 gcry_mpi_t encode_session_key( DEK *dek, unsigned nbits );
 220 gcry_mpi_t encode_md_value( PKT_public_key *pk, PKT_secret_key *sk,
 221                             gcry_md_hd_t md, int hash_algo );
 222
 223 /*-- import.c --*/
 224 int parse_import_options(char *str,unsigned int *options,int noisy);
 225 void import_keys( char **fnames, int nnames,
 226                   void *stats_hd, unsigned int options );
 227 int import_keys_stream( iobuf_t inp,void *stats_hd,unsigned char **fpr,
 228                         size_t *fpr_len,unsigned int options );
 229 void *import_new_stats_handle (void);
 230 void import_release_stats_handle (void *p);
 231 void import_print_stats (void *hd);
 232
 233 int collapse_uids( KBNODE *keyblock );
 234
 235 int auto_create_card_key_stub ( const char *serialnostr,
 236                                 const unsigned char *fpr1,
 237                                 const unsigned char *fpr2,
 238                                 const unsigned char *fpr3);
 239
 240 /*-- export.c --*/
 241 int parse_export_options(char *str,unsigned int *options,int noisy);
 242 int export_pubkeys( strlist_t users, unsigned int options );
 243 int export_pubkeys_stream( iobuf_t out, strlist_t users,
 244                            KBNODE *keyblock_out, unsigned int options );
 245 int export_seckeys( strlist_t users );
 246 int export_secsubkeys( strlist_t users );
 247
 248 /* dearmor.c --*/
 249 int dearmor_file( const char *fname );
 250 int enarmor_file( const char *fname );
 251
 252 /*-- revoke.c --*/
 253 struct revocation_reason_info;
 254 int gen_revoke( const char *uname );
 255 int gen_desig_revoke( const char *uname, strlist_t locusr);
 256 int revocation_reason_build_cb( PKT_signature *sig, void *opaque );
 257 struct revocation_reason_info *
 258                 ask_revocation_reason( int key_rev, int cert_rev, int hint );
 259 void release_revocation_reason_info( struct revocation_reason_info *reason );
 260
 261 /*-- keylist.c --*/
 262 void public_key_list( strlist_t list );
 263 void secret_key_list( strlist_t list );
 264 void print_subpackets_colon(PKT_signature *sig);
 265 void reorder_keyblock (KBNODE keyblock);
 266 void list_keyblock( KBNODE keyblock, int secret, int fpr, void *opaque );
 267 void print_fingerprint (PKT_public_key *pk, PKT_secret_key *sk, int mode);
 268 void print_revokers(PKT_public_key *pk);
 269 void show_policy_url(PKT_signature *sig,int indent,int mode);
 270 void show_keyserver_url(PKT_signature *sig,int indent,int mode);
 271 void show_notation(PKT_signature *sig,int indent,int mode,int which);
 272 void dump_attribs(const PKT_user_id *uid,
 273                   PKT_public_key *pk,PKT_secret_key *sk);
 274 void set_attrib_fd(int fd);
 275 void print_seckey_info (PKT_secret_key *sk);
 276 void print_pubkey_info (FILE *fp, PKT_public_key *pk);
 277 void print_card_key_info (FILE *fp, KBNODE keyblock);
 278
 279 /*-- verify.c --*/
 280 void print_file_status( int status, const char *name, int what );
 281 int verify_signatures( int nfiles, char **files );
 282 int verify_files( int nfiles, char **files );
 283 int gpg_verify (ctrl_t ctrl, int sig_fd, int data_fd, FILE *out_fp);
 284
 285 /*-- decrypt.c --*/
 286 int decrypt_message( const char *filename );
 287 void decrypt_messages(int nfiles, char *files[]);
 288
 289 /*-- plaintext.c --*/
 290 int hash_datafiles( gcry_md_hd_t md, gcry_md_hd_t md2,
 291                     strlist_t files, const char *sigfilename, int textmode );
 292 int hash_datafile_by_fd ( gcry_md_hd_t md, gcry_md_hd_t md2, int data_fd,
 293                           int textmode );
 294 PKT_plaintext *setup_plaintext_name(const char *filename,IOBUF iobuf);
 295
 296 /*-- signal.c --*/
 297 void init_signals(void);
 298 void pause_on_sigusr( int which );
 299 void block_all_signals(void);
 300 void unblock_all_signals(void);
 301
 302
 303 /*-- server.c --*/
 304 int gpg_server (ctrl_t);
 305
 306 #ifdef ENABLE_CARD_SUPPORT
 307 /*-- card-util.c --*/
 308 void change_pin (int no, int allow_admin);
 309 void card_status (FILE *fp, char *serialno, size_t serialnobuflen);
 310 void card_edit (strlist_t commands);
 311 int  card_generate_subkey (KBNODE pub_keyblock, KBNODE sec_keyblock);
 312 int  card_store_subkey (KBNODE node, int use);
 313 #endif
 314
 315 #define S2K_DECODE_COUNT(_val) ((16ul + ((_val) & 15)) << (((_val) >> 4) + 6))
 316
 317 #endif /*G10_MAIN_H*/