mirror of git://git.gnupg.org/gnupg.git
191 lines
6.1 KiB
C
191 lines
6.1 KiB
C
/* tdbio.h - Trust database I/O functions
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* Copyright (C) 1998 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_DIR 2
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#define RECTYPE_KEY 3
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#define RECTYPE_UID 4
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#define RECTYPE_PREF 5
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#define RECTYPE_SIG 6
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#define RECTYPE_SDIR 8
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#define RECTYPE_CACH 9
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#define RECTYPE_HTBL 10
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#define RECTYPE_HLST 11
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#define RECTYPE_FREE 254
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#define DIRF_CHECKED 1 /* has been checked - bits 1,2,3 are valid */
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#define DIRF_VALID 2 /* This key is valid: There is at least */
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/* one uid with a selfsignature or an revocation */
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#define DIRF_EXPIRED 4 /* the complete key has expired */
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#define DIRF_REVOKED 8 /* the complete key has been revoked */
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#define DIRF_VALVALID 16 /* The validity field is valid */
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#define KEYF_CHECKED 1 /* This key has been checked */
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#define KEYF_VALID 2 /* This is a valid (sub)key */
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#define KEYF_EXPIRED 4 /* this key is expired */
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#define KEYF_REVOKED 8 /* this key has been revoked */
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#define UIDF_CHECKED 1 /* user id has been checked - other bits are valid */
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#define UIDF_VALID 2 /* this is a valid user id */
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#define UIDF_REVOKED 8 /* this user id has been revoked */
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#define SIGF_CHECKED 1 /* signature has been checked - bits 0..6 are valid */
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#define SIGF_VALID 2 /* the signature is valid */
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#define SIGF_EXPIRED 4 /* the key of this signature has expired */
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#define SIGF_REVOKED 8 /* this signature has been revoked */
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#define SIGF_NOPUBKEY 128 /* there is no pubkey for this sig */
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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 2 */
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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 modified; /* timestamp of last modification */
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ulong validated; /* timestamp of last validation */
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ulong keyhashtbl;
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ulong firstfree;
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ulong sdirhashtbl;
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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 { /* directory record */
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ulong lid;
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ulong keylist; /* List of keys (the first is the primary key)*/
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ulong uidlist; /* list of uid records */
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ulong cacherec; /* the cache record */
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byte ownertrust;
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byte dirflags;
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byte validity; /* calculated trustlevel */
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} dir;
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struct { /* primary public key record */
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ulong lid;
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ulong next; /* next key */
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byte keyflags;
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byte pubkey_algo;
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byte fingerprint_len;
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byte fingerprint[20];
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} key;
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struct { /* user id reord */
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ulong lid; /* point back to the directory record */
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ulong next; /* points to next user id record */
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ulong prefrec; /* recno of preference record */
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ulong siglist; /* list of valid signatures (w/o self-sig)*/
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byte uidflags;
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byte namehash[20]; /* ripemd hash of the username */
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} uid;
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struct { /* preference record */
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ulong lid; /* point back to the directory record */
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/* or 0 for a glocal pref record */
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ulong next; /* points to next pref record */
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byte data[ITEMS_PER_PREF_RECORD];
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} pref;
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struct { /* signature record */
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ulong lid;
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ulong next; /* recnno of next record or NULL for last one */
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struct {
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ulong lid; /* of pubkey record of signator (0=unused) */
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byte flag; /* SIGF_xxxxx */
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} sig[SIGS_PER_RECORD];
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} sig;
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struct {
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ulong lid;
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u32 keyid[2];
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byte pubkey_algo;
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u32 hintlist;
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} sdir;
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struct { /* cache record */
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ulong lid;
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byte blockhash[20];
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byte trustlevel; /* calculated trustlevel */
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} cache;
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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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} r;
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};
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typedef struct trust_record TRUSTREC;
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typedef struct {
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ulong lid; /* localid */
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ulong sigrec;
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ulong sig_lid; /* returned signatures LID */
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unsigned sig_flag; /* returned signature record flag */
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struct { /* internal data */
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int init_done;
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int eof;
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TRUSTREC rec;
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ulong nextuid;
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int index;
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} ctl;
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} SIGREC_CONTEXT;
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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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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_dir_bypk( PKT_public_key *pk, TRUSTREC *rec );
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int tdbio_search_dir_byfpr( const byte *fingerprint, size_t fingerlen,
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int pubkey_algo, TRUSTREC *rec );
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int tdbio_search_sdir( u32 *keyid, int pubkey_algo, TRUSTREC *rec );
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#endif /*G10_TDBIO_H*/
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