database.c 58.2 KB
Newer Older
1 2 3
/* database.c - Alpine Package Keeper (APK)
 *
 * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
4
 * Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
5 6
 * All rights reserved.
 *
7
 * This program is free software; you can redistribute it and/or modify it
8 9 10 11 12 13 14
 * 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.
 */

#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
15
#include <mntent.h>
16
#include <limits.h>
17 18 19
#include <unistd.h>
#include <malloc.h>
#include <string.h>
20
#include <stdlib.h>
21
#include <signal.h>
22
#include <fnmatch.h>
Timo Teräs's avatar
Timo Teräs committed
23
#include <sys/vfs.h>
24
#include <sys/file.h>
25
#include <sys/wait.h>
Natanael Copa's avatar
Natanael Copa committed
26
#include <sys/stat.h>
27
#include <sys/statvfs.h>
28 29 30 31

#include "apk_defines.h"
#include "apk_package.h"
#include "apk_database.h"
32
#include "apk_applet.h"
33
#include "apk_archive.h"
Natanael Copa's avatar
Natanael Copa committed
34 35
#include "apk_print.h"

36 37 38 39 40
enum {
	APK_DISALLOW_RMDIR = 0,
	APK_ALLOW_RMDIR = 1
};

Natanael Copa's avatar
Natanael Copa committed
41 42
int apk_verbosity = 1;
unsigned int apk_flags = 0;
43

44
const char * const apkindex_tar_gz = "APKINDEX.tar.gz";
Timo Teräs's avatar
Timo Teräs committed
45
static const char * const apk_static_cache_dir = "var/cache/apk";
Timo Teräs's avatar
Timo Teräs committed
46
static const char * const apk_linked_cache_dir = "etc/apk/cache";
Timo Teräs's avatar
Timo Teräs committed
47

Timo Teräs's avatar
Timo Teräs committed
48
static const char * const apk_lock_file = "var/lock/apkdb";
Timo Teräs's avatar
Timo Teräs committed
49

Timo Teräs's avatar
Timo Teräs committed
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
static const char * const apk_world_file = "etc/apk/world";
static const char * const apk_world_file_tmp = "etc/apk/world.new";
static const char * const apk_world_file_old = "var/lib/apk/world";

static const char * const apk_scripts_file = "lib/apk/db/scripts.tar";
static const char * const apk_scripts_file_tmp = "lib/apk/db/scripts.tar.new";
static const char * const apk_scripts_file_old = "var/lib/apk/scripts.tar";

static const char * const apk_triggers_file = "lib/apk/db/triggers";
static const char * const apk_triggers_file_tmp = "lib/apk/db/triggers.new";
static const char * const apk_triggers_file_old = "var/lib/apk/triggers";

static const char * const apk_installed_file = "lib/apk/db/installed";
static const char * const apk_installed_file_tmp = "lib/apk/db/installed.new";
static const char * const apk_installed_file_old = "var/lib/apk/installed";

66 67 68
struct install_ctx {
	struct apk_database *db;
	struct apk_package *pkg;
69
	struct apk_installed_package *ipkg;
70 71

	int script;
72
	char **script_args;
73
	int script_pending : 1;
74

75
	struct apk_db_dir_instance *diri;
Timo Teräs's avatar
Timo Teräs committed
76
	struct apk_checksum data_csum;
77
	struct apk_sign_ctx sctx;
78

79 80 81 82 83
	apk_progress_cb cb;
	void *cb_ctx;
	size_t installed_size;
	size_t current_file_size;

84 85
	struct hlist_node **diri_node;
	struct hlist_node **file_diri_node;
86 87
};

88
static apk_blob_t pkg_name_get_key(apk_hash_item item)
89
{
90
	return APK_BLOB_STR(((struct apk_name *) item)->name);
91 92
}

93 94 95
static void pkg_name_free(struct apk_name *name)
{
	free(name->name);
Timo Teräs's avatar
Timo Teräs committed
96 97
	apk_package_array_free(&name->pkgs);
	apk_name_array_free(&name->rdepends);
Timo Teräs's avatar
Timo Teräs committed
98
	apk_name_array_free(&name->rinstall_if);
99 100 101
	free(name);
}

102 103 104
static const struct apk_hash_ops pkg_name_hash_ops = {
	.node_offset = offsetof(struct apk_name, hash_node),
	.get_key = pkg_name_get_key,
105 106
	.hash_key = apk_blob_hash,
	.compare = apk_blob_compare,
107
	.delete_item = (apk_hash_delete_f) pkg_name_free,
108 109
};

110
static apk_blob_t pkg_info_get_key(apk_hash_item item)
111
{
Timo Teräs's avatar
Timo Teräs committed
112
	return APK_BLOB_CSUM(((struct apk_package *) item)->csum);
113 114
}

115
static unsigned long csum_hash(apk_blob_t csum)
116
{
117 118
	/* Checksum's highest bits have the most "randomness", use that
	 * directly as hash */
119
	return *(unsigned long *) csum.ptr;
120 121 122 123 124
}

static const struct apk_hash_ops pkg_info_hash_ops = {
	.node_offset = offsetof(struct apk_package, hash_node),
	.get_key = pkg_info_get_key,
125 126
	.hash_key = csum_hash,
	.compare = apk_blob_compare,
127 128 129
	.delete_item = (apk_hash_delete_f) apk_pkg_free,
};

130
static apk_blob_t apk_db_dir_get_key(apk_hash_item item)
131
{
Timo Teräs's avatar
Timo Teräs committed
132 133
	struct apk_db_dir *dir = (struct apk_db_dir *) item;
	return APK_BLOB_PTR_LEN(dir->name, dir->namelen);
134 135 136 137 138
}

static const struct apk_hash_ops dir_hash_ops = {
	.node_offset = offsetof(struct apk_db_dir, hash_node),
	.get_key = apk_db_dir_get_key,
139 140
	.hash_key = apk_blob_hash,
	.compare = apk_blob_compare,
141 142 143
	.delete_item = (apk_hash_delete_f) free,
};

144 145 146 147 148 149
struct apk_db_file_hash_key {
	apk_blob_t dirname;
	apk_blob_t filename;
};

static unsigned long apk_db_file_hash_key(apk_blob_t _key)
150
{
151 152
	struct apk_db_file_hash_key *key = (struct apk_db_file_hash_key *) _key.ptr;

Timo Teräs's avatar
Timo Teräs committed
153
	return apk_blob_hash_seed(key->filename, apk_blob_hash(key->dirname));
154 155 156 157 158 159
}

static unsigned long apk_db_file_hash_item(apk_hash_item item)
{
	struct apk_db_file *dbf = (struct apk_db_file *) item;

Timo Teräs's avatar
Timo Teräs committed
160 161
	return apk_blob_hash_seed(APK_BLOB_PTR_LEN(dbf->name, dbf->namelen),
				  dbf->diri->dir->hash);
162 163 164 165 166 167
}

static int apk_db_file_compare_item(apk_hash_item item, apk_blob_t _key)
{
	struct apk_db_file *dbf = (struct apk_db_file *) item;
	struct apk_db_file_hash_key *key = (struct apk_db_file_hash_key *) _key.ptr;
Timo Teräs's avatar
Timo Teräs committed
168
	struct apk_db_dir *dir = dbf->diri->dir;
169 170
	int r;

Timo Teräs's avatar
Timo Teräs committed
171 172
	r = apk_blob_compare(key->filename,
			     APK_BLOB_PTR_LEN(dbf->name, dbf->namelen));
173 174 175
	if (r != 0)
		return r;

Timo Teräs's avatar
Timo Teräs committed
176 177 178
	r = apk_blob_compare(key->dirname,
			     APK_BLOB_PTR_LEN(dir->name, dir->namelen));
	return r;
179 180 181 182
}

static const struct apk_hash_ops file_hash_ops = {
	.node_offset = offsetof(struct apk_db_file, hash_node),
183 184 185
	.hash_key = apk_db_file_hash_key,
	.hash_item = apk_db_file_hash_item,
	.compare_item = apk_db_file_compare_item,
186 187 188
	.delete_item = (apk_hash_delete_f) free,
};

Timo Teräs's avatar
Timo Teräs committed
189 190 191 192 193
struct apk_name *apk_db_query_name(struct apk_database *db, apk_blob_t name)
{
	return (struct apk_name *) apk_hash_get(&db->available.names, name);
}

194
struct apk_name *apk_db_get_name(struct apk_database *db, apk_blob_t name)
195 196
{
	struct apk_name *pn;
197
	unsigned long hash = apk_hash_from_key(&db->available.names, name);
198

199
	pn = (struct apk_name *) apk_hash_get_hashed(&db->available.names, name, hash);
200 201 202 203 204 205 206
	if (pn != NULL)
		return pn;

	pn = calloc(1, sizeof(struct apk_name));
	if (pn == NULL)
		return NULL;

207
	pn->name = apk_blob_cstr(name);
Timo Teräs's avatar
Timo Teräs committed
208 209
	apk_package_array_init(&pn->pkgs);
	apk_name_array_init(&pn->rdepends);
Timo Teräs's avatar
Timo Teräs committed
210
	apk_name_array_init(&pn->rinstall_if);
211
	apk_hash_insert_hashed(&db->available.names, pn, hash);
212 213 214 215

	return pn;
}

216 217
static void apk_db_dir_unref(struct apk_database *db, struct apk_db_dir *dir,
			     int allow_rmdir)
218 219 220 221 222 223
{
	dir->refs--;
	if (dir->refs > 0)
		return;

	db->installed.stats.dirs--;
224 225
	if (allow_rmdir)
		unlinkat(db->root_fd, dir->name, AT_REMOVEDIR);
226 227

	if (dir->parent != NULL)
228
		apk_db_dir_unref(db, dir->parent, allow_rmdir);
229 230
}

231
static struct apk_db_dir *apk_db_dir_ref(struct apk_db_dir *dir)
232 233 234 235 236
{
	dir->refs++;
	return dir;
}

237 238
struct apk_db_dir *apk_db_dir_query(struct apk_database *db,
				    apk_blob_t name)
239 240 241 242
{
	return (struct apk_db_dir *) apk_hash_get(&db->installed.dirs, name);
}

243 244
static struct apk_db_dir *apk_db_dir_get(struct apk_database *db,
					 apk_blob_t name)
245 246 247
{
	struct apk_db_dir *dir;
	apk_blob_t bparent;
248
	unsigned long hash = apk_hash_from_key(&db->installed.dirs, name);
249
	int i;
250

251
	if (name.len && name.ptr[name.len-1] == '/')
252 253
		name.len--;

254
	dir = (struct apk_db_dir *) apk_hash_get_hashed(&db->installed.dirs, name, hash);
255
	if (dir != NULL)
256
		return apk_db_dir_ref(dir);
257

258
	db->installed.stats.dirs++;
259 260
	dir = malloc(sizeof(*dir) + name.len + 1);
	memset(dir, 0, sizeof(*dir));
261
	dir->refs = 1;
262
	dir->rooted_name[0] = '/';
Timo Teräs's avatar
Timo Teräs committed
263 264 265 266
	memcpy(dir->name, name.ptr, name.len);
	dir->name[name.len] = 0;
	dir->namelen = name.len;
	dir->hash = hash;
267
	apk_hash_insert_hashed(&db->installed.dirs, dir, hash);
268

269 270
	if (name.len == 0)
		dir->parent = NULL;
271
	else if (apk_blob_rsplit(name, '/', &bparent, NULL))
272
		dir->parent = apk_db_dir_get(db, bparent);
273
	else
274
		dir->parent = apk_db_dir_get(db, APK_BLOB_NULL);
275

276 277 278 279
	if (dir->parent != NULL)
		dir->flags = dir->parent->flags;

	for (i = 0; i < db->protected_paths->num; i++) {
280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298
		int flags = dir->flags, j;

		flags |= APK_DBDIRF_PROTECTED;
		for (j = 0; ; j++) {
			switch (db->protected_paths->item[i][j]) {
			case '-':
				flags &= ~(APK_DBDIRF_PROTECTED |
					   APK_DBDIRF_SYMLINKS_ONLY);
				continue;
			case '*':
				flags |= APK_DBDIRF_SYMLINKS_ONLY |
					 APK_DBDIRF_PROTECTED;
				continue;
			}
			break;
		}

		if (strcmp(&db->protected_paths->item[i][j], dir->name) == 0)
			dir->flags = flags;
299 300
	}

301 302 303
	return dir;
}

304 305 306
static struct apk_db_dir_instance *apk_db_diri_new(struct apk_database *db,
						   struct apk_package *pkg,
						   apk_blob_t name,
307
						   struct hlist_node ***after)
308 309 310 311
{
	struct apk_db_dir_instance *diri;

	diri = calloc(1, sizeof(struct apk_db_dir_instance));
312
	if (diri != NULL) {
313 314
		hlist_add_after(&diri->pkg_dirs_list, *after);
		*after = &diri->pkg_dirs_list.next;
315
		diri->dir = apk_db_dir_get(db, name);
316 317
		diri->pkg = pkg;
	}
318 319 320 321 322 323 324 325 326 327 328 329

	return diri;
}

static void apk_db_diri_set(struct apk_db_dir_instance *diri, mode_t mode,
			    uid_t uid, gid_t gid)
{
	diri->mode = mode;
	diri->uid = uid;
	diri->gid = gid;
}

330
static void apk_db_diri_mkdir(struct apk_database *db, struct apk_db_dir_instance *diri)
331
{
332 333 334 335
	if (mkdirat(db->root_fd, diri->dir->name, diri->mode) == 0) {
		if (fchownat(db->root_fd, diri->dir->name, diri->uid, diri->gid, 0) != 0)
			;
	}
336 337
}

338
static void apk_db_diri_free(struct apk_database *db,
339 340
			     struct apk_db_dir_instance *diri,
			     int allow_rmdir)
341
{
342
	apk_db_dir_unref(db, diri->dir, allow_rmdir);
343 344 345
	free(diri);
}

346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
struct apk_db_file *apk_db_file_query(struct apk_database *db,
				      apk_blob_t dir,
				      apk_blob_t name)
{
	struct apk_db_file_hash_key key;

	key = (struct apk_db_file_hash_key) {
		.dirname = dir,
		.filename = name,
	};

	return (struct apk_db_file *) apk_hash_get(&db->installed.files,
						   APK_BLOB_BUF(&key));
}

Timo Teräs's avatar
Timo Teräs committed
361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382
static struct apk_db_file *apk_db_file_new(struct apk_db_dir_instance *diri,
					   apk_blob_t name,
					   struct hlist_node ***after)
{
	struct apk_db_file *file;

	file = malloc(sizeof(*file) + name.len + 1);
	if (file == NULL)
		return NULL;

	memset(file, 0, sizeof(*file));
	memcpy(file->name, name.ptr, name.len);
	file->name[name.len] = 0;
	file->namelen = name.len;

	file->diri = diri;
	hlist_add_after(&file->diri_files_list, *after);
	*after = &file->diri_files_list.next;

	return file;
}

383
static struct apk_db_file *apk_db_file_get(struct apk_database *db,
384
					   struct apk_db_dir_instance *diri,
385 386
					   apk_blob_t name,
					   struct hlist_node ***after)
387 388
{
	struct apk_db_file *file;
389
	struct apk_db_file_hash_key key;
Timo Teräs's avatar
Timo Teräs committed
390 391
	struct apk_db_dir *dir = diri->dir;
	unsigned long hash;
392 393

	key = (struct apk_db_file_hash_key) {
Timo Teräs's avatar
Timo Teräs committed
394
		.dirname = APK_BLOB_PTR_LEN(dir->name, dir->namelen),
395 396
		.filename = name,
	};
397

Timo Teräs's avatar
Timo Teräs committed
398 399 400
	hash = apk_blob_hash_seed(name, dir->hash);
	file = (struct apk_db_file *) apk_hash_get_hashed(
		&db->installed.files, APK_BLOB_BUF(&key), hash);
401 402 403
	if (file != NULL)
		return file;

Timo Teräs's avatar
Timo Teräs committed
404
	file = apk_db_file_new(diri, name, after);
Timo Teräs's avatar
Timo Teräs committed
405
	apk_hash_insert_hashed(&db->installed.files, file, hash);
406
	db->installed.stats.files++;
407 408 409 410

	return file;
}

Timo Teräs's avatar
Timo Teräs committed
411 412 413
static void apk_db_pkg_rdepends(struct apk_database *db, struct apk_package *pkg)
{
	int i, j;
Timo Teräs's avatar
Timo Teräs committed
414
	struct apk_name *rname;
Timo Teräs's avatar
Timo Teräs committed
415 416

	for (i = 0; i < pkg->depends->num; i++) {
Timo Teräs's avatar
Timo Teräs committed
417
		rname = pkg->depends->item[i].name;
Timo Teräs's avatar
Timo Teräs committed
418 419
		for (j = 0; j < rname->rdepends->num; j++)
			if (rname->rdepends->item[j] == pkg->name)
Timo Teräs's avatar
Timo Teräs committed
420
				goto rdeps_done;
Timo Teräs's avatar
Timo Teräs committed
421 422
		*apk_name_array_add(&rname->rdepends) = pkg->name;
	}
Timo Teräs's avatar
Timo Teräs committed
423 424 425 426 427 428 429 430 431 432
rdeps_done:
	for (i = 0; i < pkg->install_if->num; i++) {
		rname = pkg->install_if->item[i].name;
		for (j = 0; j < rname->rinstall_if->num; j++)
			if (rname->rinstall_if->item[j] == pkg->name)
				goto riif_done;
		*apk_name_array_add(&rname->rinstall_if) = pkg->name;
	}
riif_done:
	return;
Timo Teräs's avatar
Timo Teräs committed
433 434
}

435
struct apk_package *apk_db_pkg_add(struct apk_database *db, struct apk_package *pkg)
436 437 438
{
	struct apk_package *idb;

439
	if (pkg->license == NULL)
440
		pkg->license = apk_blob_atomize(APK_BLOB_NULL);
441

Timo Teräs's avatar
Timo Teräs committed
442
	idb = apk_hash_get(&db->available.packages, APK_BLOB_CSUM(pkg->csum));
443 444 445 446
	if (idb == NULL) {
		idb = pkg;
		apk_hash_insert(&db->available.packages, pkg);
		*apk_package_array_add(&pkg->name->pkgs) = pkg;
Timo Teräs's avatar
Timo Teräs committed
447
		apk_db_pkg_rdepends(db, pkg);
448 449
	} else {
		idb->repos |= pkg->repos;
450 451 452 453
		if (idb->filename == NULL && pkg->filename != NULL) {
			idb->filename = pkg->filename;
			pkg->filename = NULL;
		}
454 455 456 457 458
		if (idb->ipkg == NULL && pkg->ipkg != NULL) {
			idb->ipkg = pkg->ipkg;
			idb->ipkg->pkg = idb;
			pkg->ipkg = NULL;
		}
459 460 461 462 463
		apk_pkg_free(pkg);
	}
	return idb;
}

464
void apk_cache_format_index(apk_blob_t to, struct apk_repository *repo)
465
{
466
	/* APKINDEX.12345678.tar.gz */
467
	apk_blob_push_blob(&to, APK_BLOB_STR("APKINDEX."));
468 469
	apk_blob_push_hexdump(&to, APK_BLOB_PTR_LEN((char *) repo->csum.data,
						    APK_CACHE_CSUM_BYTES));
470
	apk_blob_push_blob(&to, APK_BLOB_STR(".tar.gz"));
471 472 473
	apk_blob_push_blob(&to, APK_BLOB_PTR_LEN("", 1));
}

474
int apk_cache_download(struct apk_database *db, const char *url, apk_blob_t *arch,
475 476 477 478 479
		       const char *item, const char *cacheitem, int verify)
{
	char fullurl[PATH_MAX];
	int r;

480
	apk_repo_format_filename(fullurl, sizeof(fullurl), url, arch, item);
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
	apk_message("fetch %s", fullurl);

	if (apk_flags & APK_SIMULATE)
		return 0;

	r = apk_url_download(fullurl, db->cachetmp_fd, cacheitem);
	if (r < 0)
		return r;

	if (verify != APK_SIGN_NONE) {
		struct apk_istream *is;
		struct apk_sign_ctx sctx;

		apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY, NULL, db->keys_fd);
		is = apk_bstream_gunzip_mpart(
			apk_bstream_from_file(db->cachetmp_fd, cacheitem),
			apk_sign_ctx_mpart_cb, &sctx);

499
		r = apk_tar_parse(is, apk_sign_ctx_verify_tar, &sctx, FALSE, &db->id_cache);
500 501 502 503 504 505 506
		is->close(is);
		apk_sign_ctx_free(&sctx);
		if (r != 0) {
			unlinkat(db->cachetmp_fd, cacheitem, 0);
			return r;
		}
	}
507

508 509 510 511
	if (db->cachetmp_fd != db->cache_fd) {
		if (renameat(db->cachetmp_fd, cacheitem, db->cache_fd, cacheitem) < 0)
			return -errno;
	}
512

513
	return 0;
514 515
}

516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540
static struct apk_db_dir_instance *find_diri(struct apk_installed_package *ipkg,
					     apk_blob_t dirname,
					     struct apk_db_dir_instance *curdiri,
					     struct hlist_node ***tail)
{
	struct hlist_node *n;
	struct apk_db_dir_instance *diri;

	if (curdiri != NULL &&
	    apk_blob_compare(APK_BLOB_PTR_LEN(curdiri->dir->name,
					      curdiri->dir->namelen),
			     dirname) == 0)
		return curdiri;

	hlist_for_each_entry(diri, n, &ipkg->owned_dirs, pkg_dirs_list) {
		if (apk_blob_compare(APK_BLOB_PTR_LEN(diri->dir->name,
						      diri->dir->namelen), dirname) == 0) {
			if (tail != NULL)
				*tail = hlist_tail_ptr(&diri->owned_files);
			return diri;
		}
	}
	return NULL;
}

Timo Teräs's avatar
Timo Teräs committed
541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566
int apk_db_read_overlay(struct apk_database *db, struct apk_bstream *bs)
{
	struct apk_db_dir_instance *diri = NULL;
	struct hlist_node **diri_node = NULL, **file_diri_node = NULL;
	struct apk_package *pkg;
	struct apk_installed_package *ipkg;
	apk_blob_t token = APK_BLOB_STR("\n"), line, bdir, bfile;

	pkg = apk_pkg_new();
	if (pkg == NULL)
		return -1;

	ipkg = apk_pkg_install(db, pkg);
	if (ipkg == NULL)
		return -1;

	diri_node = hlist_tail_ptr(&ipkg->owned_dirs);

	while (!APK_BLOB_IS_NULL(line = bs->read(bs, token))) {
		if (!apk_blob_rsplit(line, '/', &bdir, &bfile))
			break;

		if (bfile.len == 0) {
			diri = apk_db_diri_new(db, pkg, bdir, &diri_node);
			file_diri_node = &diri->owned_files.first;
		} else {
567 568
			diri = find_diri(ipkg, bdir, diri, &file_diri_node);
			if (diri == NULL) {
569 570
				diri = apk_db_diri_new(db, pkg, bdir, &diri_node);
				file_diri_node = &diri->owned_files.first;
571
			}
Timo Teräs's avatar
Timo Teräs committed
572
			(void) apk_db_file_get(db, diri, bfile, &file_diri_node);
Timo Teräs's avatar
Timo Teräs committed
573 574 575 576 577 578
		}
	}

	return 0;
}

579
int apk_db_index_read(struct apk_database *db, struct apk_bstream *bs, int repo)
580 581
{
	struct apk_package *pkg = NULL;
582
	struct apk_installed_package *ipkg = NULL;
583
	struct apk_db_dir_instance *diri = NULL;
584
	struct apk_db_file *file = NULL;
585 586
	struct hlist_node **diri_node = NULL;
	struct hlist_node **file_diri_node = NULL;
587
	apk_blob_t token = APK_BLOB_STR("\n"), l;
588
	int field, r;
589

590 591 592 593
	while (!APK_BLOB_IS_NULL(l = bs->read(bs, token))) {
		if (l.len < 2 || l.ptr[1] != ':') {
			if (pkg == NULL)
				continue;
594

595
			if (repo >= 0)
596
				pkg->repos |= BIT(repo);
597

598
			if (apk_db_pkg_add(db, pkg) == NULL) {
599 600
				apk_error("Installed database load failed");
				return -1;
601
			}
602
			pkg = NULL;
603
			ipkg = NULL;
604 605
			continue;
		}
606

607 608 609 610 611 612 613 614
		/* Get field */
		field = l.ptr[0];
		l.ptr += 2;
		l.len -= 2;

		/* If no package, create new */
		if (pkg == NULL) {
			pkg = apk_pkg_new();
615
			ipkg = NULL;
616 617 618
			diri = NULL;
			file_diri_node = NULL;
		}
619

620
		/* Standard index line? */
621 622 623 624 625 626 627 628 629
		r = apk_pkg_add_info(db, pkg, field, l);
		if (r == 0) {
			if (repo == -1 && field == 'S') {
				/* Instert to installed database; this needs to
				 * happen after package name has been read, but
				 * before first FDB entry. */
				ipkg = apk_pkg_install(db, pkg);
				diri_node = hlist_tail_ptr(&ipkg->owned_dirs);
			}
630 631
			continue;
		}
632 633
		if (repo != -1 || ipkg == NULL)
			continue;
634

635 636 637 638 639
		/* Check FDB special entries */
		switch (field) {
		case 'F':
			if (pkg->name == NULL) {
				apk_error("FDB directory entry before package entry");
640 641
				return -1;
			}
642 643 644 645 646 647 648 649
			diri = apk_db_diri_new(db, pkg, l, &diri_node);
			file_diri_node = &diri->owned_files.first;
			break;
		case 'M':
			if (diri == NULL) {
				apk_error("FDB directory metadata entry before directory entry");
				return -1;
			}
650 651 652 653 654
			diri->uid = apk_blob_pull_uint(&l, 10);
			apk_blob_pull_char(&l, ':');
			diri->gid = apk_blob_pull_uint(&l, 10);
			apk_blob_pull_char(&l, ':');
			diri->mode = apk_blob_pull_uint(&l, 8);
655 656 657 658 659 660
			break;
		case 'R':
			if (diri == NULL) {
				apk_error("FDB file entry before directory entry");
				return -1;
			}
Timo Teräs's avatar
Timo Teräs committed
661
			file = apk_db_file_get(db, diri, l, &file_diri_node);
662 663 664 665 666 667
			break;
		case 'Z':
			if (file == NULL) {
				apk_error("FDB checksum entry before file entry");
				return -1;
			}
Timo Teräs's avatar
Timo Teräs committed
668
			apk_blob_pull_csum(&l, &file->csum);
669
			break;
670 671 672 673
		case 'r':
			if (ipkg != NULL)
				apk_blob_pull_deps(&l, db, &ipkg->replaces);
			break;
674
		default:
675 676 677 678 679 680 681 682
			if (r != 0 && !(apk_flags & APK_FORCE)) {
				/* Installed db should not have unsupported fields */
				apk_error("This apk-tools is too old to handle installed packages");
				return -1;
			}
			/* Installed. So mark the package as installable. */
			pkg->filename = NULL;
			continue;
683
		}
684 685 686 687
		if (APK_BLOB_IS_NULL(l)) {
			apk_error("FDB format error in entry '%c'", field);
			return -1;
		}
688 689
	}

690
	return 0;
691 692
}

Timo Teräs's avatar
Timo Teräs committed
693
static int apk_db_write_fdb(struct apk_database *db, struct apk_ostream *os)
694
{
695
	struct apk_installed_package *ipkg;
696
	struct apk_package *pkg;
697
	struct apk_db_dir_instance *diri;
698
	struct apk_db_file *file;
699
	struct hlist_node *c1, *c2;
700
	char buf[1024];
701 702
	apk_blob_t bbuf = APK_BLOB_BUF(buf);
	int r;
703

704 705
	list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
		pkg = ipkg->pkg;
706 707 708
		r = apk_pkg_write_index_entry(pkg, os);
		if (r < 0)
			return r;
709

710 711 712 713 714 715
		if (ipkg->replaces->num) {
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("r:"));
			apk_blob_push_deps(&bbuf, ipkg->replaces);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
		}

716
		hlist_for_each_entry(diri, c1, &ipkg->owned_dirs, pkg_dirs_list) {
717 718 719 720 721 722 723 724 725
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("F:"));
			apk_blob_push_blob(&bbuf, APK_BLOB_PTR_LEN(diri->dir->name, diri->dir->namelen));
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\nM:"));
			apk_blob_push_uint(&bbuf, diri->uid, 10);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR(":"));
			apk_blob_push_uint(&bbuf, diri->gid, 10);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR(":"));
			apk_blob_push_uint(&bbuf, diri->mode, 8);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
726

727
			hlist_for_each_entry(file, c2, &diri->owned_files, diri_files_list) {
728 729
				apk_blob_push_blob(&bbuf, APK_BLOB_STR("R:"));
				apk_blob_push_blob(&bbuf, APK_BLOB_PTR_LEN(file->name, file->namelen));
Timo Teräs's avatar
Timo Teräs committed
730
				if (file->csum.type != APK_CHECKSUM_NONE) {
731
					apk_blob_push_blob(&bbuf, APK_BLOB_STR("\nZ:"));
Timo Teräs's avatar
Timo Teräs committed
732
					apk_blob_push_csum(&bbuf, &file->csum);
733
				}
734
				apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
735

736
				if (os->write(os, buf, bbuf.ptr - buf) != bbuf.ptr - buf)
737
					return -1;
738
				bbuf = APK_BLOB_BUF(buf);
739
			}
740
			if (os->write(os, buf, bbuf.ptr - buf) != bbuf.ptr - buf)
741
				return -1;
742
			bbuf = APK_BLOB_BUF(buf);
743
		}
Timo Teräs's avatar
Timo Teräs committed
744
		os->write(os, "\n", 1);
745 746 747 748 749
	}

	return 0;
}

Timo Teräs's avatar
Timo Teräs committed
750
static int apk_db_scriptdb_write(struct apk_database *db, struct apk_ostream *os)
751
{
752
	struct apk_installed_package *ipkg;
753
	struct apk_package *pkg;
Timo Teräs's avatar
Timo Teräs committed
754 755 756
	struct apk_file_info fi;
	char filename[256];
	apk_blob_t bfn;
757
	int r, i;
758
	time_t now = time(NULL);
759 760 761 762 763 764 765

	list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
		pkg = ipkg->pkg;

		for (i = 0; i < APK_SCRIPT_MAX; i++) {
			if (ipkg->script[i].ptr == NULL)
				continue;
766

Timo Teräs's avatar
Timo Teräs committed
767 768
			fi = (struct apk_file_info) {
				.name = filename,
769
				.size = ipkg->script[i].len,
Timo Teräs's avatar
Timo Teräs committed
770
				.mode = 0755 | S_IFREG,
771
				.mtime = now,
Timo Teräs's avatar
Timo Teräs committed
772 773 774 775 776 777
			};
			/* The scripts db expects file names in format:
			 * pkg-version.<hexdump of package checksum>.action */
			bfn = APK_BLOB_BUF(filename);
			apk_blob_push_blob(&bfn, APK_BLOB_STR(pkg->name->name));
			apk_blob_push_blob(&bfn, APK_BLOB_STR("-"));
778
			apk_blob_push_blob(&bfn, *pkg->version);
Timo Teräs's avatar
Timo Teräs committed
779 780 781
			apk_blob_push_blob(&bfn, APK_BLOB_STR("."));
			apk_blob_push_csum(&bfn, &pkg->csum);
			apk_blob_push_blob(&bfn, APK_BLOB_STR("."));
782
			apk_blob_push_blob(&bfn, APK_BLOB_STR(apk_script_types[i]));
Timo Teräs's avatar
Timo Teräs committed
783 784
			apk_blob_push_blob(&bfn, APK_BLOB_PTR_LEN("", 1));

785
			r = apk_tar_write_entry(os, &fi, ipkg->script[i].ptr);
Timo Teräs's avatar
Timo Teräs committed
786 787
			if (r < 0)
				return r;
788 789 790
		}
	}

791
	return apk_tar_write_entry(os, NULL, NULL);
792 793
}

Timo Teräs's avatar
Timo Teräs committed
794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827
static int apk_read_script_archive_entry(void *ctx,
					 const struct apk_file_info *ae,
					 struct apk_istream *is)
{
	struct apk_database *db = (struct apk_database *) ctx;
	struct apk_package *pkg;
	char *fncsum, *fnaction;
	struct apk_checksum csum;
	apk_blob_t blob;
	int type;

	if (!S_ISREG(ae->mode))
		return 0;

	/* The scripts db expects file names in format:
	 * pkgname-version.<hexdump of package checksum>.action */
	fnaction = memrchr(ae->name, '.', strlen(ae->name));
	if (fnaction == NULL || fnaction == ae->name)
		return 0;
	fncsum = memrchr(ae->name, '.', fnaction - ae->name - 1);
	if (fncsum == NULL)
		return 0;
	fnaction++;
	fncsum++;

	/* Parse it */
	type = apk_script_type(fnaction);
	if (type == APK_SCRIPT_INVALID)
		return 0;
	blob = APK_BLOB_PTR_PTR(fncsum, fnaction - 2);
	apk_blob_pull_csum(&blob, &csum);

	/* Attach script */
	pkg = apk_db_get_pkg(db, &csum);
828 829
	if (pkg != NULL && pkg->ipkg != NULL)
		apk_ipkg_add_script(pkg->ipkg, is, type, ae->size);
Timo Teräs's avatar
Timo Teräs committed
830 831 832 833

	return 0;
}

834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854
static int parse_triggers(void *ctx, apk_blob_t blob)
{
	struct apk_installed_package *ipkg = ctx;

	if (blob.len == 0)
		return 0;

	*apk_string_array_add(&ipkg->triggers) = apk_blob_cstr(blob);
	return 0;
}

static void apk_db_triggers_write(struct apk_database *db, struct apk_ostream *os)
{
	struct apk_installed_package *ipkg;
	char buf[APK_BLOB_CHECKSUM_BUF];
	apk_blob_t bfn;
	int i;

	list_for_each_entry(ipkg, &db->installed.triggers, trigger_pkgs_list) {
		bfn = APK_BLOB_BUF(buf);
		apk_blob_push_csum(&bfn, &ipkg->pkg->csum);
855 856
		bfn = apk_blob_pushed(APK_BLOB_BUF(buf), bfn);
		os->write(os, bfn.ptr, bfn.len);
857

858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882
		for (i = 0; i < ipkg->triggers->num; i++) {
			os->write(os, " ", 1);
			apk_ostream_write_string(os, ipkg->triggers->item[i]);
		}
		os->write(os, "\n", 1);
	}
}

static void apk_db_triggers_read(struct apk_database *db, struct apk_bstream *bs)
{
	struct apk_checksum csum;
	struct apk_package *pkg;
	struct apk_installed_package *ipkg;
	apk_blob_t l;

	while (!APK_BLOB_IS_NULL(l = bs->read(bs, APK_BLOB_STR("\n")))) {
		apk_blob_pull_csum(&l, &csum);
		apk_blob_pull_char(&l, ' ');

		pkg = apk_db_get_pkg(db, &csum);
		if (pkg == NULL || pkg->ipkg == NULL)
			continue;

		ipkg = pkg->ipkg;
		apk_blob_for_each_segment(l, " ", parse_triggers, ipkg);
Timo Teräs's avatar
Timo Teräs committed
883 884
		if (ipkg->triggers->num != 0 &&
		    !list_hashed(&ipkg->trigger_pkgs_list))
885 886 887 888 889
			list_add_tail(&ipkg->trigger_pkgs_list,
				      &db->installed.triggers);
	}
}

Timo Teräs's avatar
Timo Teräs committed
890
static int apk_db_read_state(struct apk_database *db, int flags)
891
{
892
	struct apk_istream *is;
893
	struct apk_bstream *bs;
Timo Teräs's avatar
Timo Teräs committed
894
	apk_blob_t blob;
Timo Teräs's avatar
Timo Teräs committed
895
	int r;
896 897 898 899 900 901 902 903 904

	/* Read:
	 * 1. installed repository
	 * 2. source repositories
	 * 3. master dependencies
	 * 4. package statuses
	 * 5. files db
	 * 6. script db
	 */
Timo Teräs's avatar
Timo Teräs committed
905
	if (!(flags & APK_OPENF_NO_WORLD)) {
Timo Teräs's avatar
Timo Teräs committed
906
		blob = apk_blob_from_file(db->root_fd, apk_world_file);
Timo Teräs's avatar
Timo Teräs committed
907 908
		if (APK_BLOB_IS_NULL(blob))
			return -ENOENT;
909
		apk_blob_pull_deps(&blob, db, &db->world);
Timo Teräs's avatar
Timo Teräs committed
910 911
		free(blob.ptr);
	}
912

Timo Teräs's avatar
Timo Teräs committed
913
	if (!(flags & APK_OPENF_NO_INSTALLED)) {
Timo Teräs's avatar
Timo Teräs committed
914
		bs = apk_bstream_from_file(db->root_fd, apk_installed_file);
915
		if (bs != NULL) {
916
			r = apk_db_index_read(db, bs, -1);
917
			bs->close(bs, NULL);
918 919
			if (r != 0)
				return -1;
Timo Teräs's avatar
Timo Teräs committed
920
		}
921

Timo Teräs's avatar
Timo Teräs committed
922
		bs = apk_bstream_from_file(db->root_fd, apk_triggers_file);
923 924 925 926
		if (bs != NULL) {
			apk_db_triggers_read(db, bs);
			bs->close(bs, NULL);
		}
927 928
	}

Timo Teräs's avatar
Timo Teräs committed
929
	if (!(flags & APK_OPENF_NO_SCRIPTS)) {
Timo Teräs's avatar
Timo Teräs committed
930
		is = apk_istream_from_file(db->root_fd, apk_scripts_file);
Timo Teräs's avatar
Timo Teräs committed
931
		if (is != NULL) {
932
			apk_tar_parse(is, apk_read_script_archive_entry, db,
933
				      FALSE, &db->id_cache);
Timo Teräs's avatar
Timo Teräs committed
934
			is->close(is);
Timo Teräs's avatar
Timo Teräs committed
935
		}
936 937 938 939 940
	}

	return 0;
}

941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969
struct index_write_ctx {
	struct apk_ostream *os;
	int count;
	int force;
};

static int write_index_entry(apk_hash_item item, void *ctx)
{
	struct index_write_ctx *iwctx = (struct index_write_ctx *) ctx;
	struct apk_package *pkg = (struct apk_package *) item;
	int r;

	if (!iwctx->force && pkg->filename == NULL)
		return 0;

	r = apk_pkg_write_index_entry(pkg, iwctx->os);
	if (r < 0)
		return r;

	if (iwctx->os->write(iwctx->os, "\n", 1) != 1)
		return -1;

	iwctx->count++;
	return 0;
}

static int apk_db_index_write_nr_cache(struct apk_database *db)
{
	struct index_write_ctx ctx = { NULL, 0, TRUE };
970
	struct apk_installed_package *ipkg;
971 972 973 974 975 976 977 978
	struct apk_ostream *os;
	int r;

	if (!apk_db_cache_active(db))
		return 0;

	/* Write list of installed non-repository packages to
	 * cached index file */
979 980 981 982
	os = apk_ostream_to_file(db->cache_fd,
				 "installed",
				 "installed.new",
				 0644);
983 984 985
	if (os == NULL)
		return -1;

986
	ctx.os = os;
987 988
	list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
		if (ipkg->pkg->repos != 0)
989
			continue;
990
		r = write_index_entry(ipkg->pkg, &ctx);
991 992 993
		if (r != 0)
			return r;
	}
994 995 996
	r = os->close(os);
	if (r < 0)
		return r;
997 998 999 1000 1001 1002 1003

	return ctx.count;
}

int apk_db_index_write(struct apk_database *db, struct apk_ostream *os)
{
	struct index_write_ctx ctx = { os, 0, FALSE };
1004
	int r;
1005

1006 1007 1008
	r = apk_hash_foreach(&db->available.packages, write_index_entry, &ctx);
	if (r < 0)
		return r;
1009 1010 1011 1012

	return ctx.count;
}

1013 1014 1015 1016 1017 1018 1019 1020
static int add_protected_path(void *ctx, apk_blob_t blob)
{
	struct apk_database *db = (struct apk_database *) ctx;

	*apk_string_array_add(&db->protected_paths) = apk_blob_cstr(blob);
	return 0;
}

1021 1022 1023 1024
static int apk_db_create(struct apk_database *db)
{
	int fd;