database.c 69 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"

Timo Teräs's avatar
Timo Teräs committed
36 37 38 39 40
static const apk_spn_match_def apk_spn_repo_separators = {
	[4] = (1<<0) /* */,
	[7] = (1<<2) /*:*/,
};

41 42 43 44 45
enum {
	APK_DISALLOW_RMDIR = 0,
	APK_ALLOW_RMDIR = 1
};

Natanael Copa's avatar
Natanael Copa committed
46 47
int apk_verbosity = 1;
unsigned int apk_flags = 0;
48

49
const char * const apkindex_tar_gz = "APKINDEX.tar.gz";
Timo Teräs's avatar
Timo Teräs committed
50
static const char * const apk_static_cache_dir = "var/cache/apk";
Timo Teräs's avatar
Timo Teräs committed
51
static const char * const apk_linked_cache_dir = "etc/apk/cache";
Timo Teräs's avatar
Timo Teräs committed
52

Timo Teräs's avatar
Timo Teräs committed
53
static const char * const apk_lock_file = "var/lock/apkdb";
Timo Teräs's avatar
Timo Teräs committed
54

Timo Teräs's avatar
Timo Teräs committed
55 56 57
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";
58
static const char * const apk_arch_file = "etc/apk/arch";
Timo Teräs's avatar
Timo Teräs committed
59 60 61 62 63 64 65 66 67 68 69 70 71

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";

72 73 74
struct install_ctx {
	struct apk_database *db;
	struct apk_package *pkg;
75
	struct apk_installed_package *ipkg;
76 77

	int script;
78
	char **script_args;
79
	int script_pending : 1;
80

81
	struct apk_db_dir_instance *diri;
Timo Teräs's avatar
Timo Teräs committed
82
	struct apk_checksum data_csum;
83
	struct apk_sign_ctx sctx;
84

85 86 87 88 89
	apk_progress_cb cb;
	void *cb_ctx;
	size_t installed_size;
	size_t current_file_size;

90 91
	struct hlist_node **diri_node;
	struct hlist_node **file_diri_node;
92 93
};

94
static apk_blob_t pkg_name_get_key(apk_hash_item item)
95
{
96
	return APK_BLOB_STR(((struct apk_name *) item)->name);
97 98
}

99 100 101
static void pkg_name_free(struct apk_name *name)
{
	free(name->name);
102
	apk_provider_array_free(&name->providers);
Timo Teräs's avatar
Timo Teräs committed
103
	apk_name_array_free(&name->rdepends);
Timo Teräs's avatar
Timo Teräs committed
104
	apk_name_array_free(&name->rinstall_if);
105 106 107
	free(name);
}

108 109 110
static const struct apk_hash_ops pkg_name_hash_ops = {
	.node_offset = offsetof(struct apk_name, hash_node),
	.get_key = pkg_name_get_key,
111 112
	.hash_key = apk_blob_hash,
	.compare = apk_blob_compare,
113
	.delete_item = (apk_hash_delete_f) pkg_name_free,
114 115
};

116
static apk_blob_t pkg_info_get_key(apk_hash_item item)
117
{
Timo Teräs's avatar
Timo Teräs committed
118
	return APK_BLOB_CSUM(((struct apk_package *) item)->csum);
119 120
}

121
static unsigned long csum_hash(apk_blob_t csum)
122
{
123 124
	/* Checksum's highest bits have the most "randomness", use that
	 * directly as hash */
125
	return *(unsigned long *) csum.ptr;
126 127 128 129 130
}

static const struct apk_hash_ops pkg_info_hash_ops = {
	.node_offset = offsetof(struct apk_package, hash_node),
	.get_key = pkg_info_get_key,
131 132
	.hash_key = csum_hash,
	.compare = apk_blob_compare,
133 134 135
	.delete_item = (apk_hash_delete_f) apk_pkg_free,
};

136
static apk_blob_t apk_db_dir_get_key(apk_hash_item item)
137
{
Timo Teräs's avatar
Timo Teräs committed
138 139
	struct apk_db_dir *dir = (struct apk_db_dir *) item;
	return APK_BLOB_PTR_LEN(dir->name, dir->namelen);
140 141 142 143 144
}

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,
145 146
	.hash_key = apk_blob_hash,
	.compare = apk_blob_compare,
147 148 149
	.delete_item = (apk_hash_delete_f) free,
};

150 151 152 153 154 155
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)
156
{
157 158
	struct apk_db_file_hash_key *key = (struct apk_db_file_hash_key *) _key.ptr;

Timo Teräs's avatar
Timo Teräs committed
159
	return apk_blob_hash_seed(key->filename, apk_blob_hash(key->dirname));
160 161 162 163 164 165
}

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
166 167
	return apk_blob_hash_seed(APK_BLOB_PTR_LEN(dbf->name, dbf->namelen),
				  dbf->diri->dir->hash);
168 169 170 171 172 173
}

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
174
	struct apk_db_dir *dir = dbf->diri->dir;
175 176
	int r;

Timo Teräs's avatar
Timo Teräs committed
177 178
	r = apk_blob_compare(key->filename,
			     APK_BLOB_PTR_LEN(dbf->name, dbf->namelen));
179 180 181
	if (r != 0)
		return r;

Timo Teräs's avatar
Timo Teräs committed
182 183 184
	r = apk_blob_compare(key->dirname,
			     APK_BLOB_PTR_LEN(dir->name, dir->namelen));
	return r;
185 186 187 188
}

static const struct apk_hash_ops file_hash_ops = {
	.node_offset = offsetof(struct apk_db_file, hash_node),
189 190 191
	.hash_key = apk_db_file_hash_key,
	.hash_item = apk_db_file_hash_item,
	.compare_item = apk_db_file_compare_item,
192 193 194
	.delete_item = (apk_hash_delete_f) free,
};

Timo Teräs's avatar
Timo Teräs committed
195 196 197 198 199
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);
}

200
struct apk_name *apk_db_get_name(struct apk_database *db, apk_blob_t name)
201 202
{
	struct apk_name *pn;
203
	unsigned long hash = apk_hash_from_key(&db->available.names, name);
204

205
	pn = (struct apk_name *) apk_hash_get_hashed(&db->available.names, name, hash);
206 207 208 209 210 211 212
	if (pn != NULL)
		return pn;

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

213
	pn->name = apk_blob_cstr(name);
214
	apk_provider_array_init(&pn->providers);
Timo Teräs's avatar
Timo Teräs committed
215
	apk_name_array_init(&pn->rdepends);
Timo Teräs's avatar
Timo Teräs committed
216
	apk_name_array_init(&pn->rinstall_if);
217
	apk_hash_insert_hashed(&db->available.names, pn, hash);
218 219 220 221

	return pn;
}

222 223
static void apk_db_dir_mkdir(struct apk_database *db, struct apk_db_dir *dir)
{
224 225 226 227 228 229 230
	if (apk_flags & APK_SIMULATE)
		return;

	/* Don't mess with root, as no package provides it directly */
	if (dir->namelen == 0)
		return;

231
	if ((dir->refs == 1) ||
232
	    (fchmodat(db->root_fd, dir->name, dir->mode, 0) != 0 &&
233 234 235
	     errno == ENOENT))
		if ((mkdirat(db->root_fd, dir->name, dir->mode) != 0 &&
		     errno == EEXIST))
236
			if (fchmodat(db->root_fd, dir->name, dir->mode, 0) != 0)
237 238 239 240 241 242
				;

	if (fchownat(db->root_fd, dir->name, dir->uid, dir->gid, 0) != 0)
		;
}

243
void apk_db_dir_unref(struct apk_database *db, struct apk_db_dir *dir, int allow_rmdir)
244 245
{
	dir->refs--;
246 247
	if (dir->refs > 0) {
		if (allow_rmdir) {
248
			dir->recalc_mode = 1;
249 250 251
			dir->mode = 0;
			dir->uid = (uid_t) -1;
			dir->gid = (gid_t) -1;
252
		}
253
		return;
254 255
	}

256
	db->installed.stats.dirs--;
257 258

	if (allow_rmdir) {
259 260
		/* The final instance of this directory was removed,
		 * so this directory gets deleted in reality too. */
261
		dir->recalc_mode = 0;
262 263 264 265
		dir->mode = 0;
		dir->uid = (uid_t) -1;
		dir->gid = (gid_t) -1;

266 267
		if (dir->namelen)
			unlinkat(db->root_fd, dir->name, AT_REMOVEDIR);
268
	} else if (dir->recalc_mode) {
269 270
		/* Directory permissions need a reset. */
		apk_db_dir_mkdir(db, dir);
271
	}
272 273

	if (dir->parent != NULL)
274
		apk_db_dir_unref(db, dir->parent, allow_rmdir);
275 276
}

277
struct apk_db_dir *apk_db_dir_ref(struct apk_db_dir *dir)
278 279 280 281 282
{
	dir->refs++;
	return dir;
}

283 284
struct apk_db_dir *apk_db_dir_query(struct apk_database *db,
				    apk_blob_t name)
285 286 287 288
{
	return (struct apk_db_dir *) apk_hash_get(&db->installed.dirs, name);
}

289
struct apk_db_dir *apk_db_dir_get(struct apk_database *db, apk_blob_t name)
290 291
{
	struct apk_db_dir *dir;
292
	struct apk_protected_path_array *ppaths;
293
	apk_blob_t bparent;
294
	unsigned long hash = apk_hash_from_key(&db->installed.dirs, name);
295
	char *relative_name;
296
	int i;
297

298
	if (name.len && name.ptr[name.len-1] == '/')
299 300
		name.len--;

301
	dir = (struct apk_db_dir *) apk_hash_get_hashed(&db->installed.dirs, name, hash);
302
	if (dir != NULL)
303
		return apk_db_dir_ref(dir);
304

305
	db->installed.stats.dirs++;
306 307
	dir = malloc(sizeof(*dir) + name.len + 1);
	memset(dir, 0, sizeof(*dir));
308
	dir->refs = 1;
309 310
	dir->uid = (uid_t) -1;
	dir->gid = (gid_t) -1;
311
	dir->rooted_name[0] = '/';
Timo Teräs's avatar
Timo Teräs committed
312 313 314 315
	memcpy(dir->name, name.ptr, name.len);
	dir->name[name.len] = 0;
	dir->namelen = name.len;
	dir->hash = hash;
316
	apk_protected_path_array_init(&dir->protected_paths);
317
	apk_hash_insert_hashed(&db->installed.dirs, dir, hash);
318

319
	if (name.len == 0) {
320
		dir->parent = NULL;
321 322 323
		dir->has_protected_children = 1;
		ppaths = NULL;
	} else if (apk_blob_rsplit(name, '/', &bparent, NULL)) {
324
		dir->parent = apk_db_dir_get(db, bparent);
325 326 327 328 329
		dir->protected = dir->parent->protected;
		dir->has_protected_children = dir->protected;
		dir->symlinks_only = dir->parent->symlinks_only;
		ppaths = dir->parent->protected_paths;
	} else {
330
		dir->parent = apk_db_dir_get(db, APK_BLOB_NULL);
331 332
		ppaths = db->protected_paths;
	}
333

334 335
	if (ppaths == NULL)
		return dir;
336

337 338 339 340
	relative_name = strrchr(dir->rooted_name, '/') + 1;
	for (i = 0; i < ppaths->num; i++) {
		struct apk_protected_path *ppath = &ppaths->item[i];
		char *slash;
341

342 343 344 345 346
		slash = strchr(ppath->relative_pattern, '/');
		if (slash != NULL) {
			*slash = 0;
			if (fnmatch(ppath->relative_pattern, relative_name, FNM_PATHNAME) != 0) {
				*slash = '/';
347 348
				continue;
			}
349 350 351 352 353 354 355 356 357 358
			*slash = '/';

			*apk_protected_path_array_add(&dir->protected_paths) = (struct apk_protected_path) {
				.relative_pattern = slash + 1,
				.protected = ppath->protected,
				.symlinks_only = ppath->symlinks_only,
			};
		} else {
			if (fnmatch(ppath->relative_pattern, relative_name, FNM_PATHNAME) != 0)
				continue;
359

360 361 362
			dir->protected = ppath->protected;
			dir->symlinks_only = ppath->symlinks_only;
		}
363
		dir->has_protected_children |= ppath->protected;
364 365
	}

366 367 368
	return dir;
}

369 370 371
static struct apk_db_dir_instance *apk_db_diri_new(struct apk_database *db,
						   struct apk_package *pkg,
						   apk_blob_t name,
372
						   struct hlist_node ***after)
373 374 375 376
{
	struct apk_db_dir_instance *diri;

	diri = calloc(1, sizeof(struct apk_db_dir_instance));
377
	if (diri != NULL) {
378 379
		hlist_add_after(&diri->pkg_dirs_list, *after);
		*after = &diri->pkg_dirs_list.next;
380
		diri->dir = apk_db_dir_get(db, name);
381 382
		diri->pkg = pkg;
	}
383 384 385 386

	return diri;
}

387 388 389 390
static void apk_db_dir_apply_diri_permissions(struct apk_db_dir_instance *diri)
{
	struct apk_db_dir *dir = diri->dir;

391 392
	if (diri->uid < dir->uid ||
	    (diri->uid == dir->uid && diri->gid < dir->gid)) {
393 394
		dir->uid = diri->uid;
		dir->gid = diri->gid;
395 396 397
		dir->mode = diri->mode;
	} else if (diri->uid == dir->uid && diri->gid == dir->gid) {
		dir->mode &= diri->mode;
398 399 400
	}
}

401 402 403
static void apk_db_diri_set(struct apk_db_dir_instance *diri, mode_t mode,
			    uid_t uid, gid_t gid)
{
404
	diri->mode = mode & 07777;
405 406
	diri->uid = uid;
	diri->gid = gid;
407
	apk_db_dir_apply_diri_permissions(diri);
408 409
}

410
static void apk_db_diri_free(struct apk_database *db,
411 412
			     struct apk_db_dir_instance *diri,
			     int allow_rmdir)
413
{
414 415
	if (allow_rmdir == APK_DISALLOW_RMDIR &&
	    diri->dir->recalc_mode)
416 417
		apk_db_dir_apply_diri_permissions(diri);

418
	apk_db_dir_unref(db, diri->dir, allow_rmdir);
419 420 421
	free(diri);
}

422 423 424 425 426 427
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;

428 429 430
	if (dir.len && dir.ptr[dir.len-1] == '/')
		dir.len--;

431 432 433 434 435 436 437 438 439
	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
440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461
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;
}

462 463 464 465 466 467 468
static void apk_db_file_set(struct apk_db_file *file, mode_t mode, uid_t uid, gid_t gid)
{
	file->mode = mode & 07777;
	file->uid = uid;
	file->gid = gid;
}

469
static struct apk_db_file *apk_db_file_get(struct apk_database *db,
470
					   struct apk_db_dir_instance *diri,
471 472
					   apk_blob_t name,
					   struct hlist_node ***after)
473 474
{
	struct apk_db_file *file;
475
	struct apk_db_file_hash_key key;
Timo Teräs's avatar
Timo Teräs committed
476 477
	struct apk_db_dir *dir = diri->dir;
	unsigned long hash;
478 479

	key = (struct apk_db_file_hash_key) {
Timo Teräs's avatar
Timo Teräs committed
480
		.dirname = APK_BLOB_PTR_LEN(dir->name, dir->namelen),
481 482
		.filename = name,
	};
483

Timo Teräs's avatar
Timo Teräs committed
484 485 486
	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);
487 488 489
	if (file != NULL)
		return file;

Timo Teräs's avatar
Timo Teräs committed
490
	file = apk_db_file_new(diri, name, after);
Timo Teräs's avatar
Timo Teräs committed
491
	apk_hash_insert_hashed(&db->installed.files, file, hash);
492
	db->installed.stats.files++;
493 494 495 496

	return file;
}

Timo Teräs's avatar
Timo Teräs committed
497 498 499
static void apk_db_pkg_rdepends(struct apk_database *db, struct apk_package *pkg)
{
	int i, j;
Timo Teräs's avatar
Timo Teräs committed
500
	struct apk_name *rname;
Timo Teräs's avatar
Timo Teräs committed
501 502

	for (i = 0; i < pkg->depends->num; i++) {
Timo Teräs's avatar
Timo Teräs committed
503
		rname = pkg->depends->item[i].name;
Timo Teräs's avatar
Timo Teräs committed
504 505
		for (j = 0; j < rname->rdepends->num; j++)
			if (rname->rdepends->item[j] == pkg->name)
Timo Teräs's avatar
Timo Teräs committed
506
				goto rdeps_done;
Timo Teräs's avatar
Timo Teräs committed
507 508
		*apk_name_array_add(&rname->rdepends) = pkg->name;
	}
Timo Teräs's avatar
Timo Teräs committed
509 510 511 512 513 514 515 516 517 518
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
519 520
}

521 522 523 524 525
static inline void add_provider(struct apk_name *name, struct apk_provider p)
{
	*apk_provider_array_add(&name->providers) = p;
}

526
struct apk_package *apk_db_pkg_add(struct apk_database *db, struct apk_package *pkg)
527 528
{
	struct apk_package *idb;
529
	int i;
530

531
	if (pkg->license == NULL)
532
		pkg->license = apk_blob_atomize(APK_BLOB_NULL);
533

534 535 536 537 538
	/* Set as "cached" if installing from specified file, and
	 * for virtual packages */
	if (pkg->filename != NULL || pkg->installed_size == 0)
		pkg->repos |= BIT(APK_REPOSITORY_CACHED);

Timo Teräs's avatar
Timo Teräs committed
539
	idb = apk_hash_get(&db->available.packages, APK_BLOB_CSUM(pkg->csum));
540 541 542
	if (idb == NULL) {
		idb = pkg;
		apk_hash_insert(&db->available.packages, pkg);
543 544 545 546 547
		add_provider(pkg->name, APK_PROVIDER_FROM_PACKAGE(pkg));
		for (i = 0; i < pkg->provides->num; i++) {
			struct apk_dependency *dep = &pkg->provides->item[i];
			add_provider(dep->name, APK_PROVIDER_FROM_PROVIDES(pkg, dep));
		}
Timo Teräs's avatar
Timo Teräs committed
548
		apk_db_pkg_rdepends(db, pkg);
549 550
	} else {
		idb->repos |= pkg->repos;
551 552 553 554
		if (idb->filename == NULL && pkg->filename != NULL) {
			idb->filename = pkg->filename;
			pkg->filename = NULL;
		}
555 556 557 558 559
		if (idb->ipkg == NULL && pkg->ipkg != NULL) {
			idb->ipkg = pkg->ipkg;
			idb->ipkg->pkg = idb;
			pkg->ipkg = NULL;
		}
560 561 562 563 564
		apk_pkg_free(pkg);
	}
	return idb;
}

565
void apk_cache_format_index(apk_blob_t to, struct apk_repository *repo)
566
{
567
	/* APKINDEX.12345678.tar.gz */
568
	apk_blob_push_blob(&to, APK_BLOB_STR("APKINDEX."));
569 570
	apk_blob_push_hexdump(&to, APK_BLOB_PTR_LEN((char *) repo->csum.data,
						    APK_CACHE_CSUM_BYTES));
571
	apk_blob_push_blob(&to, APK_BLOB_STR(".tar.gz"));
572 573 574
	apk_blob_push_blob(&to, APK_BLOB_PTR_LEN("", 1));
}

575
int apk_cache_download(struct apk_database *db, const char *url, apk_blob_t *arch,
576 577 578 579 580
		       const char *item, const char *cacheitem, int verify)
{
	char fullurl[PATH_MAX];
	int r;

581
	apk_repo_format_filename(fullurl, sizeof(fullurl), url, arch, item);
582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599
	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);

600
		r = apk_tar_parse(is, apk_sign_ctx_verify_tar, &sctx, FALSE, &db->id_cache);
601 602 603 604 605 606 607
		is->close(is);
		apk_sign_ctx_free(&sctx);
		if (r != 0) {
			unlinkat(db->cachetmp_fd, cacheitem, 0);
			return r;
		}
	}
608

609 610 611 612
	if (db->cachetmp_fd != db->cache_fd) {
		if (renameat(db->cachetmp_fd, cacheitem, db->cache_fd, cacheitem) < 0)
			return -errno;
	}
613

614
	return 0;
615 616
}

617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641
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
642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
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 {
668 669
			diri = find_diri(ipkg, bdir, diri, &file_diri_node);
			if (diri == NULL) {
670 671
				diri = apk_db_diri_new(db, pkg, bdir, &diri_node);
				file_diri_node = &diri->owned_files.first;
672
			}
Timo Teräs's avatar
Timo Teräs committed
673
			(void) apk_db_file_get(db, diri, bfile, &file_diri_node);
Timo Teräs's avatar
Timo Teräs committed
674 675 676 677 678 679
		}
	}

	return 0;
}

680
int apk_db_index_read(struct apk_database *db, struct apk_bstream *bs, int repo)
681 682
{
	struct apk_package *pkg = NULL;
683
	struct apk_installed_package *ipkg = NULL;
684
	struct apk_db_dir_instance *diri = NULL;
685
	struct apk_db_file *file = NULL;
686 687
	struct hlist_node **diri_node = NULL;
	struct hlist_node **file_diri_node = NULL;
688
	apk_blob_t token = APK_BLOB_STR("\n"), l;
689 690 691
	mode_t mode;
	uid_t uid;
	gid_t gid;
692
	int field, r;
693

694 695 696 697
	while (!APK_BLOB_IS_NULL(l = bs->read(bs, token))) {
		if (l.len < 2 || l.ptr[1] != ':') {
			if (pkg == NULL)
				continue;
698

699
			if (repo >= 0) {
700
				pkg->repos |= BIT(repo);
701 702 703 704
			} else if (repo == -1 && ipkg == NULL) {
				/* Installed package without files */
				ipkg = apk_pkg_install(db, pkg);
			}
705

706
			if (apk_db_pkg_add(db, pkg) == NULL) {
707 708
				apk_error("Installed database load failed");
				return -1;
709
			}
710
			pkg = NULL;
711
			ipkg = NULL;
712 713
			continue;
		}
714

715 716 717 718 719 720 721 722
		/* Get field */
		field = l.ptr[0];
		l.ptr += 2;
		l.len -= 2;

		/* If no package, create new */
		if (pkg == NULL) {
			pkg = apk_pkg_new();
723
			ipkg = NULL;
724 725 726
			diri = NULL;
			file_diri_node = NULL;
		}
727

728
		/* Standard index line? */
729 730
		r = apk_pkg_add_info(db, pkg, field, l);
		if (r == 0) {
731 732
			continue;
		}
733
		if (r == 1 && repo == -1 && ipkg == NULL) {
734 735 736 737 738 739
			/* 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);
		}
740 741
		if (repo != -1 || ipkg == NULL)
			continue;
742

743 744 745 746 747
		/* Check FDB special entries */
		switch (field) {
		case 'F':
			if (pkg->name == NULL) {
				apk_error("FDB directory entry before package entry");
748 749
				return -1;
			}
750 751 752
			diri = apk_db_diri_new(db, pkg, l, &diri_node);
			file_diri_node = &diri->owned_files.first;
			break;
753 754 755 756 757
		case 'a':
			if (file == NULL) {
				apk_error("FDB file attribute metadata entry before file entry");
				return -1;
			}
758 759 760 761 762
		case 'M':
			if (diri == NULL) {
				apk_error("FDB directory metadata entry before directory entry");
				return -1;
			}
763
			uid = apk_blob_pull_uint(&l, 10);
764
			apk_blob_pull_char(&l, ':');
765
			gid = apk_blob_pull_uint(&l, 10);
766
			apk_blob_pull_char(&l, ':');
767
			mode = apk_blob_pull_uint(&l, 8);
768 769 770 771
			if (field == 'M')
				apk_db_diri_set(diri, mode, uid, gid);
			else
				apk_db_file_set(file, mode, uid, gid);
772 773 774 775 776 777
			break;
		case 'R':
			if (diri == NULL) {
				apk_error("FDB file entry before directory entry");
				return -1;
			}
Timo Teräs's avatar
Timo Teräs committed
778
			file = apk_db_file_get(db, diri, l, &file_diri_node);
779 780 781 782 783 784
			break;
		case 'Z':
			if (file == NULL) {
				apk_error("FDB checksum entry before file entry");
				return -1;
			}
Timo Teräs's avatar
Timo Teräs committed
785
			apk_blob_pull_csum(&l, &file->csum);
786
			break;
787
		case 'r':
788
			apk_blob_pull_deps(&l, db, &ipkg->replaces);
789
			break;
790
		case 'q':
791
			ipkg->replaces_priority = apk_blob_pull_uint(&l, 10);
792
			break;
793
		case 'p':
794
		case 's':
795 796
			ipkg->repository_tag = apk_db_get_tag_id(db, l);
			break;
797
		default:
798 799 800 801 802 803 804 805
			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;
806
		}
807 808 809 810
		if (APK_BLOB_IS_NULL(l)) {
			apk_error("FDB format error in entry '%c'", field);
			return -1;
		}
811 812
	}

813
	return 0;
814 815
}

Timo Teräs's avatar
Timo Teräs committed
816
static int apk_db_write_fdb(struct apk_database *db, struct apk_ostream *os)
817
{
818
	struct apk_installed_package *ipkg;
819
	struct apk_package *pkg;
820
	struct apk_db_dir_instance *diri;
821
	struct apk_db_file *file;
822
	struct hlist_node *c1, *c2;
823
	char buf[1024];
824 825
	apk_blob_t bbuf = APK_BLOB_BUF(buf);
	int r;
826

827 828
	list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
		pkg = ipkg->pkg;
829 830 831
		r = apk_pkg_write_index_entry(pkg, os);
		if (r < 0)
			return r;
832

833 834
		if (ipkg->replaces->num) {
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("r:"));
835
			apk_blob_push_deps(&bbuf, db, ipkg->replaces);
836 837
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
		}
838 839 840 841 842
		if (ipkg->replaces_priority) {
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("q:"));
			apk_blob_push_uint(&bbuf, ipkg->replaces_priority, 10);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
		}
843
		if (ipkg->repository_tag) {
844
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("s:"));
845 846 847
			apk_blob_push_blob(&bbuf, *db->repo_tags[ipkg->repository_tag].name);
			apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
		}
848
		hlist_for_each_entry(diri, c1, &ipkg->owned_dirs, pkg_dirs_list) {
849 850 851 852 853 854 855 856 857
			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"));
858

859
			hlist_for_each_entry(file, c2, &diri->owned_files, diri_files_list) {
860 861
				apk_blob_push_blob(&bbuf, APK_BLOB_STR("R:"));
				apk_blob_push_blob(&bbuf, APK_BLOB_PTR_LEN(file->name, file->namelen));
862 863 864 865 866 867 868 869
				if (file->mode != 0 || file->uid != 0 || file->gid != 0) {
					apk_blob_push_blob(&bbuf, APK_BLOB_STR("\na:"));
					apk_blob_push_uint(&bbuf, file->uid, 10);
					apk_blob_push_blob(&bbuf, APK_BLOB_STR(":"));
					apk_blob_push_uint(&bbuf, file->gid, 10);
					apk_blob_push_blob(&bbuf, APK_BLOB_STR(":"));
					apk_blob_push_uint(&bbuf, file->mode, 8);
				}
Timo Teräs's avatar
Timo Teräs committed
870
				if (file->csum.type != APK_CHECKSUM_NONE) {
871
					apk_blob_push_blob(&bbuf, APK_BLOB_STR("\nZ:"));
Timo Teräs's avatar
Timo Teräs committed
872
					apk_blob_push_csum(&bbuf, &file->csum);
873
				}
874
				apk_blob_push_blob(&bbuf, APK_BLOB_STR("\n"));
875

876
				if (os->write(os, buf, bbuf.ptr - buf) != bbuf.ptr - buf)
877
					return -EIO;
878
				bbuf = APK_BLOB_BUF(buf);
879
			}
880
			if (os->write(os, buf, bbuf.ptr - buf) != bbuf.ptr - buf)
881
				return -EIO;
882
			bbuf = APK_BLOB_BUF(buf);
883
		}
Timo Teräs's avatar
Timo Teräs committed
884
		os->write(os, "\n", 1);
885 886 887 888 889
	}

	return 0;
}

Timo Teräs's avatar
Timo Teräs committed
890
static int apk_db_scriptdb_write(struct apk_database *db, struct apk_ostream *os)
891
{
892
	struct apk_installed_package *ipkg;
893
	struct apk_package *pkg;
Timo Teräs's avatar
Timo Teräs committed
894 895 896
	struct apk_file_info fi;
	char filename[256];
	apk_blob_t bfn;
897
	int r, i;
898
	time_t now = time(NULL);
899 900 901 902 903 904 905

	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;
906

Timo Teräs's avatar
Timo Teräs committed
907 908
			fi = (struct apk_file_info) {
				.name = filename,
909
				.size = ipkg->script[i].len,
Timo Teräs's avatar
Timo Teräs committed
910
				.mode = 0755 | S_IFREG,
911
				.mtime = now,
Timo Teräs's avatar
Timo Teräs committed
912 913 914 915 916 917
			};
			/* 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("-"));
918
			apk_blob_push_blob(&bfn, *pkg->version);
Timo Teräs's avatar
Timo Teräs committed
919 920 921
			apk_blob_push_blob(&bfn, APK_BLOB_STR("."));
			apk_blob_push_csum(&bfn, &pkg->csum);
			apk_blob_push_blob(&bfn, APK_BLOB_STR("."));
922
			apk_blob_push_blob(&bfn, APK_BLOB_STR(apk_script_types[i]));
Timo Teräs's avatar
Timo Teräs committed
923 924
			apk_blob_push_blob(&bfn, APK_BLOB_PTR_LEN("", 1));

925
			r = apk_tar_write_entry(os, &fi, ipkg->script[i].ptr);
Timo Teräs's avatar
Timo Teräs committed
926 927
			if (r < 0)
				return r;
928 929 930
		}
	}

931
	return apk_tar_write_entry(os, NULL, NULL);
932 933
}

Timo Teräs's avatar
Timo Teräs committed
934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967
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);
968 969
	if (pkg != NULL && pkg->ipkg != NULL)
		apk_ipkg_add_script(pkg->ipkg, is, type, ae->size);
Timo Teräs's avatar
Timo Teräs committed
970 971 972 973

	return 0;
}

974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994
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);
995 996
		bfn = apk_blob_pushed(APK_BLOB_BUF(buf), bfn);
		os->write(os, bfn.ptr, bfn.len);
997

998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
		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
1023 1024
		if (ipkg->triggers->num != 0 &&
		    !list_hashed(&ipkg->trigger_pkgs_list))
1025 1026 1027 1028 1029
			list_add_tail(&ipkg->trigger_pkgs_list,
				      &db->installed.triggers);
	}
}

Timo Teräs's avatar
Timo Teräs committed
1030
static int apk_db_read_state(struct apk_database *db, int flags)
1031
{
1032
	struct apk_istream *is;
1033
	struct apk_bstream *bs;
1034
	apk_blob_t blob, world;
Timo Teräs's avatar
Timo Teräs committed
1035
	int r;
1036 1037 1038 1039 1040 1041 1042 1043 1044

	/* 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
1045
	if (!(flags & APK_OPENF_NO_WORLD)) {
1046
		blob = world = apk_blob_from_file(db->root_fd, apk_world_file);
Timo Teräs's avatar
Timo Teräs committed
1047 1048
		if (APK_BLOB_IS_NULL(blob))
			return -ENOENT;
1049 1050 1051
		blob = apk_blob_trim(blob);
		if (apk_blob_chr(blob, ' '))
			db->compat_old_world = 1;
1052
		apk_blob_pull_deps(&blob, db, &db->world);
1053
		free(world.ptr);
Timo Teräs's avatar
Timo Teräs committed
1054
	}
1055

Timo Teräs's avatar
Timo Teräs committed
1056
	if (!(flags & APK_OPENF_NO_INSTALLED)) {
Timo Teräs's avatar
Timo Teräs committed
1057
		bs = apk_bstream_from_file(db->root_fd, apk_installed_file);
1058
		if (bs != NULL) {
1059
			r = apk_db_index_read(db, bs, -1);
1060
			bs->close(bs, NULL);
1061 1062
			if (r != 0)
				return -1;
Timo Teräs's avatar
Timo Teräs committed
1063
		}
1064

Timo Teräs's avatar
Timo Teräs committed
1065
		bs = apk_bstream_from_file(db->root_fd, apk_triggers_file);
1066 1067 1068 1069
		if (bs != NULL) {
			apk_db_triggers_read(db, bs);
			bs->close(bs, NULL);
		}
1070 1071
	}

Timo Teräs's avatar
Timo Teräs committed
1072
	if (!(flags & APK_OPENF_NO_SCRIPTS)) {
Timo Teräs's avatar
Timo Teräs committed
1073
		is = apk_istream_from_file(db->root_fd, apk_scripts_file);