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112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
/* tdbio.h - Trust database I/O functions
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* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_TDBIO_H
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#define G10_TDBIO_H
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#include "host2net.h"
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#define TRUST_RECORD_LEN 40
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#define SIGS_PER_RECORD ((TRUST_RECORD_LEN-10)/5)
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#define ITEMS_PER_HTBL_RECORD ((TRUST_RECORD_LEN-2)/4)
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#define ITEMS_PER_HLST_RECORD ((TRUST_RECORD_LEN-6)/5)
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#define ITEMS_PER_PREF_RECORD (TRUST_RECORD_LEN-10)
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#if ITEMS_PER_PREF_RECORD % 2
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#error ITEMS_PER_PREF_RECORD must be even
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#endif
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#define MAX_LIST_SIGS_DEPTH 20
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#define RECTYPE_VER 1
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#define RECTYPE_HTBL 10
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#define RECTYPE_HLST 11
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#define RECTYPE_TRUST 12
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#define RECTYPE_VALID 13
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#define RECTYPE_FREE 254
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struct trust_record {
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int rectype;
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int mark;
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int dirty; /* for now only used internal by functions */
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struct trust_record *next; /* help pointer to build lists in memory */
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ulong recnum;
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union {
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struct { /* version record: */
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byte version; /* should be 3 */
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byte marginals;
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byte completes;
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byte cert_depth;
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ulong created; /* timestamp of trustdb creation */
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ulong nextcheck; /* timestamp of next scheduled check */
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ulong reserved;
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ulong reserved2;
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ulong firstfree;
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ulong reserved3;
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ulong trusthashtbl;
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} ver;
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struct { /* free record */
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ulong next;
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} free;
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struct {
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ulong item[ITEMS_PER_HTBL_RECORD];
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} htbl;
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struct {
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ulong next;
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ulong rnum[ITEMS_PER_HLST_RECORD]; /* of another record */
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} hlst;
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struct {
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byte fingerprint[20];
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byte ownertrust;
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byte depth;
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ulong validlist;
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} trust;
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struct {
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byte namehash[20];
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ulong next;
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byte validity;
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} valid;
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} r;
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};
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typedef struct trust_record TRUSTREC;
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/*-- tdbio.c --*/
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int tdbio_set_dbname( const char *new_dbname, int create );
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const char *tdbio_get_dbname(void);
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void tdbio_dump_record( TRUSTREC *rec, FILE *fp );
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int tdbio_read_record( ulong recnum, TRUSTREC *rec, int expected );
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int tdbio_write_record( TRUSTREC *rec );
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int tdbio_db_matches_options(void);
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ulong tdbio_read_nextcheck (void);
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void tdbio_write_nextcheck (ulong stamp);
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int tdbio_is_dirty(void);
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int tdbio_sync(void);
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int tdbio_begin_transaction(void);
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int tdbio_end_transaction(void);
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int tdbio_cancel_transaction(void);
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int tdbio_delete_record( ulong recnum );
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ulong tdbio_new_recnum(void);
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int tdbio_search_trust_byfpr(const byte *fingerprint, TRUSTREC *rec );
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int tdbio_search_trust_bypk(PKT_public_key *pk, TRUSTREC *rec );
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void tdbio_invalid(void);
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#endif /*G10_TDBIO_H*/
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