apk_database.h 7.65 KB
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/* apk_database.h - Alpine Package Keeper (APK)
 *
 * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
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 * Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
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 * All rights reserved.
 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation. See http://www.gnu.org/ for details.
 */

#ifndef APK_PKGDB_H
#define APK_PKGDB_H

#include "apk_version.h"
#include "apk_hash.h"
#include "apk_archive.h"
#include "apk_package.h"
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#include "apk_io.h"
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#include "apk_provider_data.h"
#include "apk_solver_data.h"

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struct apk_name;
APK_ARRAY(apk_name_array, struct apk_name *);

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struct apk_db_acl {
	mode_t mode;
	uid_t uid;
	gid_t gid;
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	struct apk_checksum xattr_csum;
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};

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struct apk_db_file {
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	struct hlist_node hash_node;
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	struct hlist_node diri_files_list;
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	struct apk_db_dir_instance *diri;
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	struct apk_db_acl *acl;
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	unsigned short audited : 1;
	unsigned short namelen : 15;
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	struct apk_checksum csum;
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	char name[];
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};

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enum apk_protect_mode {
	APK_PROTECT_NONE = 0,
	APK_PROTECT_CHANGED,
	APK_PROTECT_SYMLINKS_ONLY,
	APK_PROTECT_ALL,
};

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struct apk_protected_path {
	char *relative_pattern;
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	unsigned protect_mode : 3;
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};
APK_ARRAY(apk_protected_path_array, struct apk_protected_path);
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struct apk_db_dir {
	apk_hash_node hash_node;
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	unsigned long hash;
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	struct apk_db_dir *parent;
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	struct apk_protected_path_array *protected_paths;
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	mode_t mode;
	uid_t uid;
	gid_t gid;
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	unsigned short refs;
	unsigned short namelen;
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	unsigned protect_mode : 3;
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	unsigned has_protected_children : 1;
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	unsigned seen : 1;
	unsigned created : 1;
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	unsigned modified : 1;
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	unsigned update_permissions : 1;
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	char rooted_name[1];
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	char name[];
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};

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#define DIR_FILE_FMT			"%s%s%s"
#define DIR_FILE_PRINTF(dir,file)	(dir)->name, (dir)->namelen ? "/" : "", (file)->name
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struct apk_db_dir_instance {
	struct hlist_node pkg_dirs_list;
	struct hlist_head owned_files;
	struct apk_package *pkg;
	struct apk_db_dir *dir;
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	struct apk_db_acl *acl;
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};

struct apk_name {
	apk_hash_node hash_node;
	char *name;
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	struct apk_provider_array *providers;
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	struct apk_name_array *rdepends;
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	struct apk_name_array *rinstall_if;
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	unsigned is_dependency : 1;
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	unsigned auto_select_virtual: 1;
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	unsigned int foreach_genid;
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	union {
		struct apk_solver_name_state ss;
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		void *state_ptr;
		int state_int;
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	};
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};

struct apk_repository {
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	const char *url;
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	struct apk_checksum csum;
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	apk_blob_t description;
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};

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struct apk_repository_list {
	struct list_head list;
	const char *url;
};

struct apk_db_options {
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	int lock_wait;
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	unsigned int cache_max_age;
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	unsigned long open_flags;
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	const char *root;
	const char *arch;
	const char *keys_dir;
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	const char *cache_dir;
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	const char *repositories_file;
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	struct list_head repository_list;
};

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#define APK_REPOSITORY_CACHED		0
#define APK_REPOSITORY_FIRST_CONFIGURED	1

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#define APK_DEFAULT_REPOSITORY_TAG	0
#define APK_DEFAULT_PINNING_MASK	BIT(APK_DEFAULT_REPOSITORY_TAG)

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struct apk_repository_tag {
	unsigned int allowed_repos;
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	apk_blob_t tag, plain_name;
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};

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struct apk_database {
	char *root;
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	int root_fd, lock_fd, cache_fd, keys_fd;
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	unsigned num_repos, num_repo_tags;
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	const char *cache_dir;
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	char *cache_remount_dir, *root_proc_dir;
	unsigned long cache_remount_flags;
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	apk_blob_t *arch;
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	unsigned int local_repos, available_repos, cache_max_age;
	unsigned int repo_update_errors, repo_update_counter;
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	unsigned int pending_triggers;
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	int performing_self_upgrade : 1;
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	int permanent : 1;
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	int open_write : 1;
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	int open_complete : 1;
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	int compat_newfeatures : 1;
	int compat_notinstallable : 1;
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	struct apk_dependency_array *world;
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	struct apk_protected_path_array *protected_paths;
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	struct apk_repository repos[APK_MAX_REPOS];
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	struct apk_repository_tag repo_tags[APK_MAX_TAGS];
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	struct apk_id_cache id_cache;
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	struct {
		struct apk_hash names;
		struct apk_hash packages;
	} available;

	struct {
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		struct list_head packages;
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		struct list_head triggers;
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		struct apk_hash dirs;
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		struct apk_hash files;
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		struct {
			unsigned files;
			unsigned dirs;
			unsigned packages;
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			size_t bytes;
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		} stats;
	} installed;
};

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typedef union apk_database_or_void {
	struct apk_database *db;
	void *ptr;
} apk_database_t __attribute__ ((__transparent_union__));

struct apk_name *apk_db_get_name(struct apk_database *db, apk_blob_t name);
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struct apk_name *apk_db_query_name(struct apk_database *db, apk_blob_t name);
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int apk_db_get_tag_id(struct apk_database *db, apk_blob_t tag);
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struct apk_db_dir *apk_db_dir_ref(struct apk_db_dir *dir);
void apk_db_dir_unref(struct apk_database *db, struct apk_db_dir *dir, int allow_rmdir);
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struct apk_db_dir *apk_db_dir_get(struct apk_database *db, apk_blob_t name);
struct apk_db_dir *apk_db_dir_query(struct apk_database *db, apk_blob_t name);
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struct apk_db_file *apk_db_file_query(struct apk_database *db,
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				      apk_blob_t dir, apk_blob_t name);
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#define APK_OPENF_READ			0x0001
#define APK_OPENF_WRITE			0x0002
#define APK_OPENF_CREATE		0x0004
#define APK_OPENF_NO_INSTALLED		0x0010
#define APK_OPENF_NO_SCRIPTS		0x0020
#define APK_OPENF_NO_WORLD		0x0040
#define APK_OPENF_NO_SYS_REPOS		0x0100
#define APK_OPENF_NO_INSTALLED_REPO	0x0200
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#define APK_OPENF_CACHE_WRITE		0x0400
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#define APK_OPENF_NO_REPOS	(APK_OPENF_NO_SYS_REPOS |	\
				 APK_OPENF_NO_INSTALLED_REPO)
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#define APK_OPENF_NO_STATE	(APK_OPENF_NO_INSTALLED |	\
				 APK_OPENF_NO_SCRIPTS |		\
				 APK_OPENF_NO_WORLD)
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void apk_db_init(struct apk_database *db);
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int apk_db_open(struct apk_database *db, struct apk_db_options *dbopts);
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void apk_db_close(struct apk_database *db);
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int apk_db_write_config(struct apk_database *db);
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int apk_db_permanent(struct apk_database *db);
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int apk_db_check_world(struct apk_database *db, struct apk_dependency_array *world);
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int apk_db_fire_triggers(struct apk_database *db);
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int apk_db_run_script(struct apk_database *db, char *fn, char **argv);
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void apk_db_update_directory_permissions(struct apk_database *db);
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struct apk_package *apk_db_pkg_add(struct apk_database *db, struct apk_package *pkg);
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struct apk_package *apk_db_get_pkg(struct apk_database *db, struct apk_checksum *csum);
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struct apk_package *apk_db_get_file_owner(struct apk_database *db, apk_blob_t filename);
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int apk_db_index_read(struct apk_database *db, struct apk_bstream *bs, int repo);
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int apk_db_index_read_file(struct apk_database *db, const char *file, int repo);
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int apk_db_index_write(struct apk_database *db, struct apk_ostream *os);
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int apk_db_add_repository(apk_database_t db, apk_blob_t repository);
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struct apk_repository *apk_db_select_repo(struct apk_database *db,
					  struct apk_package *pkg);
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int apk_repo_format_cache_index(apk_blob_t to, struct apk_repository *repo);
int apk_repo_format_item(struct apk_database *db, struct apk_repository *repo, struct apk_package *pkg,
			 int *fd, char *buf, size_t len);

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unsigned int apk_db_get_pinning_mask_repos(struct apk_database *db, unsigned short pinning_mask);
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int apk_db_cache_active(struct apk_database *db);
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int apk_cache_download(struct apk_database *db, struct apk_repository *repo,
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		       struct apk_package *pkg, int verify, int autoupdate,
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		       apk_progress_cb cb, void *cb_ctx);
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typedef void (*apk_cache_item_cb)(struct apk_database *db,
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				  int dirfd, const char *name,
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				  struct apk_package *pkg);
int apk_db_cache_foreach_item(struct apk_database *db, apk_cache_item_cb cb);

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int apk_db_install_pkg(struct apk_database *db,
		       struct apk_package *oldpkg,
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		       struct apk_package *newpkg,
		       apk_progress_cb cb, void *cb_ctx);
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void apk_name_foreach_matching(struct apk_database *db, struct apk_string_array *filter, unsigned int match,
			       void (*cb)(struct apk_database *db, const char *match, struct apk_name *name, void *ctx),
			       void *ctx);

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#endif