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pacman/lib/libalpm/db.h
Allan McRae ed6fda2f98 Add functions for verifying database signature
Add a pmpgpsig_t struct to the database entry struct and functions for
the lazy loading of database signatures.  Add a function for checking
database signatures, reusing (and generalizing) the code currently used
for checking package signatures.

TODO: The code for reading in signature files from the filesystem is
duplicated for local packages and database and needs refactoring.

Signed-off-by: Allan McRae <allan@archlinux.org>
2011-03-23 22:22:33 -05:00

111 lines
3.4 KiB
C

/*
* db.h
*
* Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2006 by Miklos Vajna <vmiklos@frugalware.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ALPM_DB_H
#define _ALPM_DB_H
#include "alpm.h"
#include "pkghash.h"
#include <time.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
#include "alpm.h"
#include "signing.h"
/* Database entries */
typedef enum _pmdbinfrq_t {
INFRQ_BASE = 1,
INFRQ_DESC = (1 << 1),
INFRQ_FILES = (1 << 2),
INFRQ_SCRIPTLET = (1 << 3),
INFRQ_DSIZE = (1 << 4),
/* ALL should be info stored in the package or database */
INFRQ_ALL = 0x1F
} pmdbinfrq_t;
struct db_operations {
int (*populate) (pmdb_t *);
void (*unregister) (pmdb_t *);
int (*version) (pmdb_t *);
};
/* Database */
struct __pmdb_t {
char *treename;
/* do not access directly, use _alpm_db_path(db) for lazy access */
char *_path;
int pkgcache_loaded;
int grpcache_loaded;
/* also indicates whether we are RO or RW */
int is_local;
pmpkghash_t *pkgcache;
alpm_list_t *grpcache;
alpm_list_t *servers;
/* do not access directly, use _alpm_db_pgpsig(db) for lazy access */
pmpgpsig_t pgpsig;
pgp_verify_t pgp_verify;
struct db_operations *ops;
};
/* db.c, database general calls */
pmdb_t *_alpm_db_new(const char *treename, int is_local);
void _alpm_db_free(pmdb_t *db);
const char *_alpm_db_path(pmdb_t *db);
int _alpm_db_version(pmdb_t *db);
int _alpm_db_cmp(const void *d1, const void *d2);
alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles);
pmdb_t *_alpm_db_register_local(void);
pmdb_t *_alpm_db_register_sync(const char *treename);
void _alpm_db_unregister(pmdb_t *db);
const pmpgpsig_t *_alpm_db_pgpsig(pmdb_t *db);
/* be_*.c, backend specific calls */
int _alpm_local_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq);
int _alpm_local_db_prepare(pmdb_t *db, pmpkg_t *info);
int _alpm_local_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq);
int _alpm_local_db_remove(pmdb_t *db, pmpkg_t *info);
/* cache bullshit */
/* packages */
int _alpm_db_load_pkgcache(pmdb_t *db);
void _alpm_db_free_pkgcache(pmdb_t *db);
int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg);
int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg);
pmpkghash_t *_alpm_db_get_pkgcache_hash(pmdb_t *db);
alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db);
int _alpm_db_ensure_pkgcache(pmdb_t *db, pmdbinfrq_t infolevel);
pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target);
/* groups */
int _alpm_db_load_grpcache(pmdb_t *db);
void _alpm_db_free_grpcache(pmdb_t *db);
alpm_list_t *_alpm_db_get_grpcache(pmdb_t *db);
pmgrp_t *_alpm_db_get_grpfromcache(pmdb_t *db, const char *target);
#endif /* _ALPM_DB_H */
/* vim: set ts=2 sw=2 noet: */