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, NULL, NULL)) {
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,
99 void (*cb)(pkg_t *, void *), void *priv)
104 const size_t len = 4096;
106 struct gzip_handle zh;
108 if (src && src->gzip) {
109 fp = gzip_fdopen(&zh, file_name);
111 fp = fopen(file_name, "r");
115 opkg_perror(ERROR, "Failed to open %s", file_name);
125 pkg->state_flag |= state_flags;
127 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
130 if (pkg->name == NULL) {
131 /* probably just a blank line */
141 /* Probably a blank line, continue parsing. */
146 if (!(pkg->state_flag & SF_NEED_DETAIL)) {
147 //opkg_msg(DEBUG, "Package %s is unrelated, ignoring.\n", pkg->name);
153 if (!pkg_get_architecture(pkg) || !pkg_get_arch_priority(pkg)) {
154 char *version_str = pkg_version_str_alloc(pkg);
155 opkg_msg(NOTICE, "Package %s version %s has no "
156 "valid architecture, ignoring.\n",
157 pkg->name, version_str);
165 hash_insert_pkg(pkg, is_status_file);
172 if (src && src->gzip)
179 * Load in feed files from the cached "src" and/or "src/gz" locations.
181 int pkg_hash_load_feeds(int state_flags, void (*cb)(pkg_t *, void *), void *priv)
183 pkg_src_list_elt_t *iter;
185 char *list_file, *lists_dir;
187 opkg_msg(INFO, "\n");
189 lists_dir = conf->restrict_to_default_dest ?
190 conf->default_dest->lists_dir : conf->lists_dir;
192 for (iter = void_list_first(&conf->pkg_src_list); iter;
193 iter = void_list_next(&conf->pkg_src_list, iter)) {
195 src = (pkg_src_t *) iter->data;
197 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
199 if (file_exists(list_file)) {
200 if (pkg_hash_add_from_file(list_file, src, NULL, 0, state_flags, cb, priv)) {
212 * Load in status files from the configured "dest"s.
214 int pkg_hash_load_status_files(void (*cb)(pkg_t *, void *), void *priv)
216 pkg_dest_list_elt_t *iter;
219 opkg_msg(INFO, "\n");
221 for (iter = void_list_first(&conf->pkg_dest_list); iter;
222 iter = void_list_next(&conf->pkg_dest_list, iter)) {
224 dest = (pkg_dest_t *) iter->data;
226 if (file_exists(dest->status_file_name)) {
227 if (pkg_hash_add_from_file
228 (dest->status_file_name, NULL, dest, 1, SF_NEED_DETAIL, cb, priv))
237 pkg_hash_load_package_details_helper(const char *pkg_name, void *entry, void *data)
240 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
242 if (ab_pkg->state_flag & SF_NEED_DETAIL) {
243 if (ab_pkg->state_flag & SF_MARKED) {
244 opkg_msg(DEBUG, "skipping already seen flagged abpkg %s\n",
249 opkg_msg(DEBUG, "found yet incomplete flagged abpkg %s\n",
253 ab_pkg->state_flag |= SF_MARKED;
257 int pkg_hash_load_package_details(void)
262 pkg_hash_load_feeds(0, NULL, NULL);
265 hash_table_foreach(&conf->pkg_hash, pkg_hash_load_package_details_helper, &n_need_detail);
267 if (n_need_detail > 0)
268 opkg_msg(DEBUG, "Found %d packages requiring details, reloading feeds\n", n_need_detail);
276 pkg_t *pkg_hash_fetch_best_installation_candidate(abstract_pkg_t * apkg,
277 int (*constraint_fcn) (pkg_t *
281 void *cdata, int quiet)
286 int wrong_arch_found = 0;
288 pkg_vec_t *matching_pkgs;
289 abstract_pkg_vec_t *matching_apkgs;
290 abstract_pkg_vec_t *provided_apkg_vec;
291 abstract_pkg_t **provided_apkgs;
292 abstract_pkg_vec_t *providers;
293 pkg_t *latest_installed_parent = NULL;
294 pkg_t *latest_matching = NULL;
295 pkg_t *priorized_matching = NULL;
296 pkg_t *held_pkg = NULL;
297 pkg_t *good_pkg_by_name = NULL;
299 if (apkg == NULL || apkg->provided_by == NULL
300 || (apkg->provided_by->len == 0))
303 matching_pkgs = pkg_vec_alloc();
304 matching_apkgs = abstract_pkg_vec_alloc();
305 providers = abstract_pkg_vec_alloc();
307 opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
309 provided_apkg_vec = apkg->provided_by;
310 nprovides = provided_apkg_vec->len;
311 provided_apkgs = provided_apkg_vec->pkgs;
313 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name,
316 /* accumulate all the providers */
317 for (i = 0; i < nprovides; i++) {
318 abstract_pkg_t *provider_apkg = provided_apkgs[i];
319 opkg_msg(DEBUG, "Adding %s to providers.\n",
320 provider_apkg->name);
321 abstract_pkg_vec_insert(providers, provider_apkg);
323 nprovides = providers->len;
325 for (i = 0; i < nprovides; i++) {
326 abstract_pkg_t *provider_apkg =
327 abstract_pkg_vec_get(providers, i);
328 abstract_pkg_t *replacement_apkg = NULL;
331 if (provider_apkg->replaced_by
332 && provider_apkg->replaced_by->len) {
333 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
334 if (provider_apkg->replaced_by->len > 1) {
335 opkg_msg(NOTICE, "Multiple replacers for %s, "
336 "using first one (%s).\n",
338 replacement_apkg->name);
342 if (replacement_apkg)
344 "replacement_apkg=%s for provider_apkg=%s.\n",
345 replacement_apkg->name, provider_apkg->name);
347 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
348 if (abstract_pkg_vec_contains
349 (providers, replacement_apkg))
352 provider_apkg = replacement_apkg;
355 if (!(vec = provider_apkg->pkgs)) {
356 opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
357 provider_apkg->name);
361 /* now check for supported architecture */
365 /* count packages matching max arch priority and keep track of last one */
366 for (j = 0; j < vec->len; j++) {
367 pkg_t *maybe = vec->pkgs[j];
368 arch_priority = pkg_get_arch_priority(maybe);
371 "%s arch=%s arch_priority=%d version=%s.\n",
372 maybe->name, pkg_get_architecture(maybe),
373 arch_priority, pkg_get_string(maybe, PKG_VERSION));
374 /* We make sure not to add the same package twice. Need to search for the reason why
375 they show up twice sometimes. */
376 if ((arch_priority > 0)
378 (!pkg_vec_contains(matching_pkgs, maybe))) {
380 abstract_pkg_vec_insert(matching_apkgs,
382 pkg_vec_insert(matching_pkgs, maybe);
386 if (vec->len > 0 && matching_pkgs->len < 1)
387 wrong_arch_found = 1;
391 if (matching_pkgs->len < 1) {
392 if (wrong_arch_found)
393 opkg_msg(ERROR, "Packages for %s found, but"
394 " incompatible with the architectures configured\n",
396 pkg_vec_free(matching_pkgs);
397 abstract_pkg_vec_free(matching_apkgs);
398 abstract_pkg_vec_free(providers);
402 if (matching_pkgs->len > 1)
403 pkg_vec_sort(matching_pkgs,
404 pkg_name_version_and_architecture_compare);
405 if (matching_apkgs->len > 1)
406 abstract_pkg_vec_sort(matching_apkgs, abstract_pkg_name_compare);
408 for (i = 0; i < matching_pkgs->len; i++) {
409 pkg_t *matching = matching_pkgs->pkgs[i];
410 if (constraint_fcn(matching, cdata)) {
411 opkg_msg(DEBUG, "Candidate: %s %s.\n",
412 matching->name, pkg_get_string(matching, PKG_VERSION));
413 good_pkg_by_name = matching;
414 /* It has been provided by hand, so it is what user want */
415 if (matching->provided_by_hand == 1)
420 for (i = 0; i < matching_pkgs->len; i++) {
421 pkg_t *matching = matching_pkgs->pkgs[i];
422 latest_matching = matching;
423 if (matching->parent->state_status == SS_INSTALLED
424 || matching->parent->state_status == SS_UNPACKED)
425 latest_installed_parent = matching;
426 if (matching->state_flag & (SF_HOLD | SF_PREFER)) {
429 "Multiple packages (%s and %s) providing"
430 " same name marked HOLD or PREFER. "
431 "Using latest.\n", held_pkg->name,
437 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent
438 && matching_apkgs->len > 1 && !quiet) {
440 for (i = 0; i < matching_pkgs->len; i++) {
441 pkg_t *matching = matching_pkgs->pkgs[i];
442 arch_priority = pkg_get_arch_priority(matching);
443 if (arch_priority > prio) {
444 priorized_matching = matching;
445 prio = arch_priority;
446 opkg_msg(DEBUG, "Match %s with priority %i.\n",
447 matching->name, prio);
453 if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
454 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
455 matching_pkgs->len, apkg->name);
456 for (i = 0; i < matching_pkgs->len; i++) {
457 pkg_t *matching = matching_pkgs->pkgs[i];
458 opkg_msg(INFO, "%s %s %s\n",
459 matching->name, pkg_get_string(matching, PKG_VERSION),
460 pkg_get_architecture(matching));
464 nmatching = matching_apkgs->len;
466 pkg_vec_free(matching_pkgs);
467 abstract_pkg_vec_free(matching_apkgs);
468 abstract_pkg_vec_free(providers);
470 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
471 return good_pkg_by_name;
474 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
477 if (latest_installed_parent) {
479 "Using latest version of installed package %s.\n",
480 latest_installed_parent->name);
481 return latest_installed_parent;
483 if (priorized_matching) {
484 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
485 priorized_matching->name, pkg_get_string(priorized_matching, PKG_VERSION),
486 pkg_get_architecture(priorized_matching));
487 return priorized_matching;
490 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
494 if (latest_matching) {
495 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
496 latest_matching->name, pkg_get_string(latest_matching, PKG_VERSION),
497 pkg_get_architecture(latest_matching));
498 return latest_matching;
503 static int pkg_name_constraint_fcn(pkg_t * pkg, void *cdata)
505 const char *name = (const char *)cdata;
507 if (strcmp(pkg->name, name) == 0)
513 static pkg_vec_t *pkg_vec_fetch_by_name(const char *pkg_name)
515 abstract_pkg_t *ab_pkg;
517 if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
523 if (ab_pkg->provided_by) {
524 abstract_pkg_t *abpkg =
525 abstract_pkg_vec_get(ab_pkg->provided_by, 0);
535 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
537 abstract_pkg_t *apkg = NULL;
539 if (!(apkg = abstract_pkg_fetch_by_name(name)))
542 return pkg_hash_fetch_best_installation_candidate(apkg,
543 pkg_name_constraint_fcn,
547 pkg_t *pkg_hash_fetch_by_name_version(const char *pkg_name, const char *version)
551 char *version_str = NULL;
553 if (!(vec = pkg_vec_fetch_by_name(pkg_name)))
556 for (i = 0; i < vec->len; i++) {
557 version_str = pkg_version_str_alloc(vec->pkgs[i]);
558 if (!strcmp(version_str, version)) {
571 pkg_t *pkg_hash_fetch_installed_by_name_dest(const char *pkg_name,
577 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
581 for (i = 0; i < vec->len; i++)
582 if ((vec->pkgs[i]->state_status == SS_INSTALLED
583 || vec->pkgs[i]->state_status == SS_UNPACKED)
584 && vec->pkgs[i]->dest == dest) {
591 pkg_t *pkg_hash_fetch_installed_by_name(const char *pkg_name)
596 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
600 for (i = 0; i < vec->len; i++) {
601 if (vec->pkgs[i]->state_status == SS_INSTALLED
602 || vec->pkgs[i]->state_status == SS_UNPACKED) {
611 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
614 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
615 pkg_vec_t *all = (pkg_vec_t *) data;
616 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
621 for (j = 0; j < pkg_vec->len; j++) {
622 pkg_t *pkg = pkg_vec->pkgs[j];
623 pkg_vec_insert(all, pkg);
627 void pkg_hash_fetch_available(pkg_vec_t * all)
629 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
634 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry,
637 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
638 pkg_vec_t *all = (pkg_vec_t *) data;
639 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
645 for (j = 0; j < pkg_vec->len; j++) {
646 pkg_t *pkg = pkg_vec->pkgs[j];
647 if (pkg->state_status == SS_INSTALLED
648 || pkg->state_status == SS_UNPACKED)
649 pkg_vec_insert(all, pkg);
653 void pkg_hash_fetch_all_installed(pkg_vec_t * all)
655 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
660 * This assumes that the abstract pkg doesn't exist.
662 static abstract_pkg_t *add_new_abstract_pkg_by_name(const char *pkg_name)
664 abstract_pkg_t *ab_pkg;
666 ab_pkg = abstract_pkg_new();
668 ab_pkg->name = xstrdup(pkg_name);
669 hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
674 abstract_pkg_t *ensure_abstract_pkg_by_name(const char *pkg_name)
676 abstract_pkg_t *ab_pkg;
678 if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
679 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
684 void hash_insert_pkg(pkg_t * pkg, int set_status)
686 abstract_pkg_t *ab_pkg;
688 ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
690 ab_pkg->pkgs = pkg_vec_alloc();
692 if (pkg->state_status == SS_INSTALLED) {
693 ab_pkg->state_status = SS_INSTALLED;
694 } else if (pkg->state_status == SS_UNPACKED) {
695 ab_pkg->state_status = SS_UNPACKED;
700 buildProvides(ab_pkg, pkg);
702 init_providelist(pkg, NULL);
704 /* Need to build the conflicts graph before replaces for correct
705 * calculation of replaced_by relation.
709 buildReplaces(ab_pkg, pkg);
711 buildDependedUponBy(pkg, ab_pkg);
713 pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
714 pkg->parent = ab_pkg;
717 static const char *strip_offline_root(const char *file_name)
721 if (conf->offline_root) {
722 len = strlen(conf->offline_root);
723 if (strncmp(file_name, conf->offline_root, len) == 0)
730 void file_hash_remove(const char *file_name)
732 file_name = strip_offline_root(file_name);
733 hash_table_remove(&conf->file_hash, file_name);
736 pkg_t *file_hash_get_file_owner(const char *file_name)
738 file_name = strip_offline_root(file_name);
739 return hash_table_get(&conf->file_hash, file_name);
742 void file_hash_set_file_owner(const char *file_name, pkg_t * owning_pkg)
744 pkg_t *old_owning_pkg;
745 int file_name_len = strlen(file_name);
747 if (file_name[file_name_len - 1] == '/')
750 file_name = strip_offline_root(file_name);
752 old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
753 hash_table_insert(&conf->file_hash, file_name, owning_pkg);
755 if (old_owning_pkg) {
756 pkg_get_installed_files(old_owning_pkg);
757 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
758 pkg_free_installed_files(old_owning_pkg);
760 /* mark this package to have its filelist written */
761 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
762 owning_pkg->state_flag |= SF_FILELIST_CHANGED;