1 /* opkg_hash.c - the opkg package management system
5 Copyright (C) 2002 Compaq Computer Corporation
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2, or (at
10 your option) any later version.
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
20 #include "hash_table.h"
22 #include "opkg_message.h"
25 #include "parse_util.h"
26 #include "pkg_parse.h"
27 #include "opkg_utils.h"
28 #include "sprintf_alloc.h"
29 #include "file_util.h"
30 #include "libbb/libbb.h"
31 #include "libbb/gzip.h"
33 void pkg_hash_init(void)
35 hash_table_init("pkg-hash", &conf->pkg_hash,
36 OPKG_CONF_DEFAULT_HASH_LEN);
39 static void free_pkgs(const char *key, void *entry, void *data)
42 abstract_pkg_t *ab_pkg;
44 /* Each entry in the hash table is an abstract package, which contains
45 * a list of packages that provide the abstract package.
48 ab_pkg = (abstract_pkg_t *) entry;
51 for (i = 0; i < ab_pkg->pkgs->len; i++) {
52 pkg_deinit(ab_pkg->pkgs->pkgs[i]);
53 free(ab_pkg->pkgs->pkgs[i]);
57 abstract_pkg_vec_free(ab_pkg->provided_by);
58 abstract_pkg_vec_free(ab_pkg->replaced_by);
59 pkg_vec_free(ab_pkg->pkgs);
60 free(ab_pkg->depended_upon_by);
65 void pkg_hash_deinit(void)
67 hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
68 hash_table_deinit(&conf->pkg_hash);
71 int dist_hash_add_from_file(const char *lists_dir, pkg_src_t * dist)
73 nv_pair_list_elt_t *l;
74 char *list_file, *subname;
76 list_for_each_entry(l, &conf->arch_list.head, node) {
77 nv_pair_t *nv = (nv_pair_t *) l->data;
78 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
79 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
81 if (file_exists(list_file)) {
82 if (pkg_hash_add_from_file(list_file, dist, NULL, 0, 0)) {
86 pkg_src_list_append(&conf->pkg_src_list, subname,
87 dist->value, "__dummy__", 0);
97 pkg_hash_add_from_file(const char *file_name,
98 pkg_src_t * src, pkg_dest_t * dest, int is_status_file, int state_flags)
103 const size_t len = 4096;
105 struct gzip_handle zh;
107 if (src && src->gzip) {
108 fp = gzip_fdopen(&zh, file_name);
110 fp = fopen(file_name, "r");
114 opkg_perror(ERROR, "Failed to open %s", file_name);
124 pkg->state_flag |= state_flags;
126 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
129 if (pkg->name == NULL) {
130 /* probably just a blank line */
140 /* Probably a blank line, continue parsing. */
145 if (!pkg_get_architecture(pkg) || !pkg_get_arch_priority(pkg)) {
146 char *version_str = pkg_version_str_alloc(pkg);
147 opkg_msg(NOTICE, "Package %s version %s has no "
148 "valid architecture, ignoring.\n",
149 pkg->name, version_str);
154 hash_insert_pkg(pkg, is_status_file);
161 if (src && src->gzip)
168 * Load in feed files from the cached "src" and/or "src/gz" locations.
170 int pkg_hash_load_feeds(int state_flags)
172 pkg_src_list_elt_t *iter;
173 pkg_src_t *src, *subdist;
174 char *list_file, *lists_dir;
176 opkg_msg(INFO, "\n");
178 lists_dir = conf->restrict_to_default_dest ?
179 conf->default_dest->lists_dir : conf->lists_dir;
181 for (iter = void_list_first(&conf->pkg_src_list); iter;
182 iter = void_list_next(&conf->pkg_src_list, iter)) {
184 src = (pkg_src_t *) iter->data;
186 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
188 if (file_exists(list_file)) {
189 if (pkg_hash_add_from_file(list_file, src, NULL, 0, state_flags)) {
201 * Load in status files from the configured "dest"s.
203 int pkg_hash_load_status_files(void)
205 pkg_dest_list_elt_t *iter;
208 opkg_msg(INFO, "\n");
210 for (iter = void_list_first(&conf->pkg_dest_list); iter;
211 iter = void_list_next(&conf->pkg_dest_list, iter)) {
213 dest = (pkg_dest_t *) iter->data;
215 if (file_exists(dest->status_file_name)) {
216 if (pkg_hash_add_from_file
217 (dest->status_file_name, NULL, dest, 1, SF_NEED_DETAIL))
226 pkg_hash_load_package_details_helper(const char *pkg_name, void *entry, void *data)
229 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
231 if (ab_pkg->state_flag & SF_NEED_DETAIL) {
232 if (ab_pkg->state_flag & SF_MARKED) {
233 opkg_msg(DEBUG, "skipping already seen flagged abpkg %s\n",
238 opkg_msg(DEBUG, "found yet incomplete flagged abpkg %s\n",
242 ab_pkg->state_flag |= SF_MARKED;
246 int pkg_hash_load_package_details(void)
251 pkg_hash_load_feeds(0);
254 hash_table_foreach(&conf->pkg_hash, pkg_hash_load_package_details_helper, &n_need_detail);
256 if (n_need_detail > 0)
257 opkg_msg(DEBUG, "Found %d packages requiring details, reloading feeds\n", n_need_detail);
265 pkg_t *pkg_hash_fetch_best_installation_candidate(abstract_pkg_t * apkg,
266 int (*constraint_fcn) (pkg_t *
270 void *cdata, int quiet)
275 int wrong_arch_found = 0;
277 pkg_vec_t *matching_pkgs;
278 abstract_pkg_vec_t *matching_apkgs;
279 abstract_pkg_vec_t *provided_apkg_vec;
280 abstract_pkg_t **provided_apkgs;
281 abstract_pkg_vec_t *providers;
282 pkg_t *latest_installed_parent = NULL;
283 pkg_t *latest_matching = NULL;
284 pkg_t *priorized_matching = NULL;
285 pkg_t *held_pkg = NULL;
286 pkg_t *good_pkg_by_name = NULL;
288 if (apkg == NULL || apkg->provided_by == NULL
289 || (apkg->provided_by->len == 0))
292 matching_pkgs = pkg_vec_alloc();
293 matching_apkgs = abstract_pkg_vec_alloc();
294 providers = abstract_pkg_vec_alloc();
296 opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
298 provided_apkg_vec = apkg->provided_by;
299 nprovides = provided_apkg_vec->len;
300 provided_apkgs = provided_apkg_vec->pkgs;
302 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name,
305 /* accumulate all the providers */
306 for (i = 0; i < nprovides; i++) {
307 abstract_pkg_t *provider_apkg = provided_apkgs[i];
308 opkg_msg(DEBUG, "Adding %s to providers.\n",
309 provider_apkg->name);
310 abstract_pkg_vec_insert(providers, provider_apkg);
312 nprovides = providers->len;
314 for (i = 0; i < nprovides; i++) {
315 abstract_pkg_t *provider_apkg =
316 abstract_pkg_vec_get(providers, i);
317 abstract_pkg_t *replacement_apkg = NULL;
320 if (provider_apkg->replaced_by
321 && provider_apkg->replaced_by->len) {
322 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
323 if (provider_apkg->replaced_by->len > 1) {
324 opkg_msg(NOTICE, "Multiple replacers for %s, "
325 "using first one (%s).\n",
327 replacement_apkg->name);
331 if (replacement_apkg)
333 "replacement_apkg=%s for provider_apkg=%s.\n",
334 replacement_apkg->name, provider_apkg->name);
336 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
337 if (abstract_pkg_vec_contains
338 (providers, replacement_apkg))
341 provider_apkg = replacement_apkg;
344 if (!(vec = provider_apkg->pkgs)) {
345 opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
346 provider_apkg->name);
350 /* now check for supported architecture */
354 /* count packages matching max arch priority and keep track of last one */
355 for (j = 0; j < vec->len; j++) {
356 pkg_t *maybe = vec->pkgs[j];
357 arch_priority = pkg_get_arch_priority(maybe);
360 "%s arch=%s arch_priority=%d version=%s.\n",
361 maybe->name, pkg_get_architecture(maybe),
362 arch_priority, pkg_get_string(maybe, PKG_VERSION));
363 /* We make sure not to add the same package twice. Need to search for the reason why
364 they show up twice sometimes. */
365 if ((arch_priority > 0)
367 (!pkg_vec_contains(matching_pkgs, maybe))) {
369 abstract_pkg_vec_insert(matching_apkgs,
371 pkg_vec_insert(matching_pkgs, maybe);
375 if (vec->len > 0 && matching_pkgs->len < 1)
376 wrong_arch_found = 1;
380 if (matching_pkgs->len < 1) {
381 if (wrong_arch_found)
382 opkg_msg(ERROR, "Packages for %s found, but"
383 " incompatible with the architectures configured\n",
385 pkg_vec_free(matching_pkgs);
386 abstract_pkg_vec_free(matching_apkgs);
387 abstract_pkg_vec_free(providers);
391 if (matching_pkgs->len > 1)
392 pkg_vec_sort(matching_pkgs,
393 pkg_name_version_and_architecture_compare);
394 if (matching_apkgs->len > 1)
395 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
397 for (i = 0; i < matching_pkgs->len; i++) {
398 pkg_t *matching = matching_pkgs->pkgs[i];
399 if (constraint_fcn(matching, cdata)) {
400 opkg_msg(DEBUG, "Candidate: %s %s.\n",
401 matching->name, pkg_get_string(matching, PKG_VERSION));
402 good_pkg_by_name = matching;
403 /* It has been provided by hand, so it is what user want */
404 if (matching->provided_by_hand == 1)
409 for (i = 0; i < matching_pkgs->len; i++) {
410 pkg_t *matching = matching_pkgs->pkgs[i];
411 latest_matching = matching;
412 if (matching->parent->state_status == SS_INSTALLED
413 || matching->parent->state_status == SS_UNPACKED)
414 latest_installed_parent = matching;
415 if (matching->state_flag & (SF_HOLD | SF_PREFER)) {
418 "Multiple packages (%s and %s) providing"
419 " same name marked HOLD or PREFER. "
420 "Using latest.\n", held_pkg->name,
426 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent
427 && matching_apkgs->len > 1 && !quiet) {
429 for (i = 0; i < matching_pkgs->len; i++) {
430 pkg_t *matching = matching_pkgs->pkgs[i];
431 arch_priority = pkg_get_arch_priority(matching);
432 if (arch_priority > prio) {
433 priorized_matching = matching;
434 prio = arch_priority;
435 opkg_msg(DEBUG, "Match %s with priority %i.\n",
436 matching->name, prio);
442 if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
443 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
444 matching_pkgs->len, apkg->name);
445 for (i = 0; i < matching_pkgs->len; i++) {
446 pkg_t *matching = matching_pkgs->pkgs[i];
447 opkg_msg(INFO, "%s %s %s\n",
448 matching->name, pkg_get_string(matching, PKG_VERSION),
449 pkg_get_architecture(matching));
453 nmatching = matching_apkgs->len;
455 pkg_vec_free(matching_pkgs);
456 abstract_pkg_vec_free(matching_apkgs);
457 abstract_pkg_vec_free(providers);
459 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
460 return good_pkg_by_name;
463 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
466 if (latest_installed_parent) {
468 "Using latest version of installed package %s.\n",
469 latest_installed_parent->name);
470 return latest_installed_parent;
472 if (priorized_matching) {
473 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
474 priorized_matching->name, pkg_get_string(priorized_matching, PKG_VERSION),
475 pkg_get_architecture(priorized_matching));
476 return priorized_matching;
479 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
483 if (latest_matching) {
484 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
485 latest_matching->name, pkg_get_string(latest_matching, PKG_VERSION),
486 pkg_get_architecture(latest_matching));
487 return latest_matching;
492 static int pkg_name_constraint_fcn(pkg_t * pkg, void *cdata)
494 const char *name = (const char *)cdata;
496 if (strcmp(pkg->name, name) == 0)
502 static pkg_vec_t *pkg_vec_fetch_by_name(const char *pkg_name)
504 abstract_pkg_t *ab_pkg;
506 if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
512 if (ab_pkg->provided_by) {
513 abstract_pkg_t *abpkg =
514 abstract_pkg_vec_get(ab_pkg->provided_by, 0);
524 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
526 abstract_pkg_t *apkg = NULL;
528 if (!(apkg = abstract_pkg_fetch_by_name(name)))
531 return pkg_hash_fetch_best_installation_candidate(apkg,
532 pkg_name_constraint_fcn,
536 pkg_t *pkg_hash_fetch_by_name_version(const char *pkg_name, const char *version)
540 char *version_str = NULL;
542 if (!(vec = pkg_vec_fetch_by_name(pkg_name)))
545 for (i = 0; i < vec->len; i++) {
546 version_str = pkg_version_str_alloc(vec->pkgs[i]);
547 if (!strcmp(version_str, version)) {
560 pkg_t *pkg_hash_fetch_installed_by_name_dest(const char *pkg_name,
566 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
570 for (i = 0; i < vec->len; i++)
571 if ((vec->pkgs[i]->state_status == SS_INSTALLED
572 || vec->pkgs[i]->state_status == SS_UNPACKED)
573 && vec->pkgs[i]->dest == dest) {
580 pkg_t *pkg_hash_fetch_installed_by_name(const char *pkg_name)
585 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
589 for (i = 0; i < vec->len; i++) {
590 if (vec->pkgs[i]->state_status == SS_INSTALLED
591 || vec->pkgs[i]->state_status == SS_UNPACKED) {
600 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
603 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
604 pkg_vec_t *all = (pkg_vec_t *) data;
605 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
610 for (j = 0; j < pkg_vec->len; j++) {
611 pkg_t *pkg = pkg_vec->pkgs[j];
612 pkg_vec_insert(all, pkg);
616 void pkg_hash_fetch_available(pkg_vec_t * all)
618 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
623 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry,
626 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
627 pkg_vec_t *all = (pkg_vec_t *) data;
628 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
634 for (j = 0; j < pkg_vec->len; j++) {
635 pkg_t *pkg = pkg_vec->pkgs[j];
636 if (pkg->state_status == SS_INSTALLED
637 || pkg->state_status == SS_UNPACKED)
638 pkg_vec_insert(all, pkg);
642 void pkg_hash_fetch_all_installed(pkg_vec_t * all)
644 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
649 * This assumes that the abstract pkg doesn't exist.
651 static abstract_pkg_t *add_new_abstract_pkg_by_name(const char *pkg_name)
653 abstract_pkg_t *ab_pkg;
655 ab_pkg = abstract_pkg_new();
657 ab_pkg->name = xstrdup(pkg_name);
658 hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
663 abstract_pkg_t *ensure_abstract_pkg_by_name(const char *pkg_name)
665 abstract_pkg_t *ab_pkg;
667 if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
668 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
673 void hash_insert_pkg(pkg_t * pkg, int set_status)
675 abstract_pkg_t *ab_pkg;
677 ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
679 ab_pkg->pkgs = pkg_vec_alloc();
681 if (pkg->state_status == SS_INSTALLED) {
682 ab_pkg->state_status = SS_INSTALLED;
683 } else if (pkg->state_status == SS_UNPACKED) {
684 ab_pkg->state_status = SS_UNPACKED;
689 buildProvides(ab_pkg, pkg);
691 init_providelist(pkg, NULL);
693 /* Need to build the conflicts graph before replaces for correct
694 * calculation of replaced_by relation.
698 buildReplaces(ab_pkg, pkg);
700 buildDependedUponBy(pkg, ab_pkg);
702 pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
703 pkg->parent = ab_pkg;
706 static const char *strip_offline_root(const char *file_name)
710 if (conf->offline_root) {
711 len = strlen(conf->offline_root);
712 if (strncmp(file_name, conf->offline_root, len) == 0)
719 void file_hash_remove(const char *file_name)
721 file_name = strip_offline_root(file_name);
722 hash_table_remove(&conf->file_hash, file_name);
725 pkg_t *file_hash_get_file_owner(const char *file_name)
727 file_name = strip_offline_root(file_name);
728 return hash_table_get(&conf->file_hash, file_name);
731 void file_hash_set_file_owner(const char *file_name, pkg_t * owning_pkg)
733 pkg_t *old_owning_pkg;
734 int file_name_len = strlen(file_name);
736 if (file_name[file_name_len - 1] == '/')
739 file_name = strip_offline_root(file_name);
741 old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
742 hash_table_insert(&conf->file_hash, file_name, owning_pkg);
744 if (old_owning_pkg) {
745 pkg_get_installed_files(old_owning_pkg);
746 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
747 pkg_free_installed_files(old_owning_pkg);
749 /* mark this package to have its filelist written */
750 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
751 owning_pkg->state_flag |= SF_FILELIST_CHANGED;