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"
23 #include "opkg_message.h"
26 #include "parse_util.h"
27 #include "pkg_parse.h"
28 #include "opkg_utils.h"
29 #include "sprintf_alloc.h"
30 #include "file_util.h"
31 #include "libbb/libbb.h"
36 hash_table_init("pkg-hash", &conf->pkg_hash,
37 OPKG_CONF_DEFAULT_HASH_LEN);
41 free_pkgs(const char *key, void *entry, void *data)
44 abstract_pkg_t *ab_pkg;
46 /* Each entry in the hash table is an abstract package, which contains
47 * a list of packages that provide the abstract package.
50 ab_pkg = (abstract_pkg_t*) entry;
53 for (i = 0; i < ab_pkg->pkgs->len; i++) {
54 pkg_deinit (ab_pkg->pkgs->pkgs[i]);
55 free (ab_pkg->pkgs->pkgs[i]);
59 abstract_pkg_vec_free (ab_pkg->provided_by);
60 abstract_pkg_vec_free (ab_pkg->replaced_by);
61 pkg_vec_free (ab_pkg->pkgs);
62 free (ab_pkg->depended_upon_by);
70 hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
71 hash_table_deinit(&conf->pkg_hash);
75 dist_hash_add_from_file(const char *lists_dir, pkg_src_t *dist)
77 nv_pair_list_elt_t *l;
78 char *list_file, *subname;
80 list_for_each_entry(l , &conf->arch_list.head, node) {
81 nv_pair_t *nv = (nv_pair_t *)l->data;
82 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
83 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
85 if (file_exists(list_file)) {
86 if (pkg_hash_add_from_file(list_file, dist, NULL, 0)) {
90 pkg_src_list_append (&conf->pkg_src_list, subname, dist->value, "__dummy__", 0);
101 pkg_hash_add_from_file(const char *file_name,
102 pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
107 const size_t len = 4096;
110 fp = fopen(file_name, "r");
112 opkg_perror(ERROR, "Failed to open %s", file_name);
123 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
126 if (pkg->name == NULL) {
127 /* probably just a blank line */
137 /* Probably a blank line, continue parsing. */
142 if (!pkg->architecture || !pkg->arch_priority) {
143 char *version_str = pkg_version_str_alloc(pkg);
144 opkg_msg(NOTICE, "Package %s version %s has no "
145 "valid architecture, ignoring.\n",
146 pkg->name, version_str);
151 hash_insert_pkg(pkg, is_status_file);
162 * Load in feed files from the cached "src" and/or "src/gz" locations.
165 pkg_hash_load_feeds(void)
167 pkg_src_list_elt_t *iter;
168 pkg_src_t *src, *subdist;
169 char *list_file, *lists_dir;
171 opkg_msg(INFO, "\n");
173 lists_dir = conf->restrict_to_default_dest ?
174 conf->default_dest->lists_dir : conf->lists_dir;
176 for (iter = void_list_first(&conf->dist_src_list); iter;
177 iter = void_list_next(&conf->dist_src_list, iter)) {
179 src = (pkg_src_t *)iter->data;
181 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
183 if (file_exists(list_file)) {
185 release_t *release = release_new();
186 if(release_init_from_file(release, list_file)) {
192 const char **comps = release_comps(release, &ncomp);
193 subdist = (pkg_src_t *) xmalloc(sizeof(pkg_src_t));
194 memcpy(subdist, src, sizeof(pkg_src_t));
196 for(i = 0; i < ncomp; i++){
197 subdist->name = NULL;
198 sprintf_alloc(&subdist->name, "%s-%s", src->name, comps[i]);
199 if (dist_hash_add_from_file(lists_dir, subdist)) {
200 free(subdist->name); free(subdist);
205 free(subdist->name); free(subdist);
210 for (iter = void_list_first(&conf->pkg_src_list); iter;
211 iter = void_list_next(&conf->pkg_src_list, iter)) {
213 src = (pkg_src_t *)iter->data;
215 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
217 if (file_exists(list_file)) {
218 if (pkg_hash_add_from_file(list_file, src, NULL, 0)) {
230 * Load in status files from the configured "dest"s.
233 pkg_hash_load_status_files(void)
235 pkg_dest_list_elt_t *iter;
238 opkg_msg(INFO, "\n");
240 for (iter = void_list_first(&conf->pkg_dest_list); iter;
241 iter = void_list_next(&conf->pkg_dest_list, iter)) {
243 dest = (pkg_dest_t *)iter->data;
245 if (file_exists(dest->status_file_name)) {
246 if (pkg_hash_add_from_file(dest->status_file_name, NULL, dest, 1))
254 static abstract_pkg_t *
255 abstract_pkg_fetch_by_name(const char * pkg_name)
257 return (abstract_pkg_t *)hash_table_get(&conf->pkg_hash, pkg_name);
261 pkg_hash_fetch_best_installation_candidate(abstract_pkg_t *apkg,
262 int (*constraint_fcn)(pkg_t *pkg, void *cdata),
263 void *cdata, int quiet)
268 int wrong_arch_found = 0;
269 pkg_vec_t *matching_pkgs;
270 abstract_pkg_vec_t *matching_apkgs;
271 abstract_pkg_vec_t *provided_apkg_vec;
272 abstract_pkg_t **provided_apkgs;
273 abstract_pkg_vec_t *providers;
274 pkg_t *latest_installed_parent = NULL;
275 pkg_t *latest_matching = NULL;
276 pkg_t *priorized_matching = NULL;
277 pkg_t *held_pkg = NULL;
278 pkg_t *good_pkg_by_name = NULL;
280 if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
283 matching_pkgs = pkg_vec_alloc();
284 matching_apkgs = abstract_pkg_vec_alloc();
285 providers = abstract_pkg_vec_alloc();
287 opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
289 provided_apkg_vec = apkg->provided_by;
290 nprovides = provided_apkg_vec->len;
291 provided_apkgs = provided_apkg_vec->pkgs;
293 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name, nprovides);
295 /* accumulate all the providers */
296 for (i = 0; i < nprovides; i++) {
297 abstract_pkg_t *provider_apkg = provided_apkgs[i];
298 opkg_msg(DEBUG, "Adding %s to providers.\n", provider_apkg->name);
299 abstract_pkg_vec_insert(providers, provider_apkg);
301 nprovides = providers->len;
303 for (i = 0; i < nprovides; i++) {
304 abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
305 abstract_pkg_t *replacement_apkg = NULL;
308 if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
309 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
310 if (provider_apkg->replaced_by->len > 1) {
311 opkg_msg(NOTICE, "Multiple replacers for %s, "
312 "using first one (%s).\n",
313 provider_apkg->name, replacement_apkg->name);
317 if (replacement_apkg)
318 opkg_msg(DEBUG, "replacement_apkg=%s for provider_apkg=%s.\n",
319 replacement_apkg->name, provider_apkg->name);
321 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
322 if (abstract_pkg_vec_contains(providers, replacement_apkg))
325 provider_apkg = replacement_apkg;
328 if (!(vec = provider_apkg->pkgs)) {
329 opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
330 provider_apkg->name);
335 /* now check for supported architecture */
339 /* count packages matching max arch priority and keep track of last one */
340 for (j=0; j<vec->len; j++) {
341 pkg_t *maybe = vec->pkgs[j];
342 opkg_msg(DEBUG, "%s arch=%s arch_priority=%d version=%s.\n",
343 maybe->name, maybe->architecture,
344 maybe->arch_priority, maybe->version);
345 /* We make sure not to add the same package twice. Need to search for the reason why
346 they show up twice sometimes. */
347 if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
349 abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
350 pkg_vec_insert(matching_pkgs, maybe);
354 if (vec->len > 0 && matching_pkgs->len < 1)
355 wrong_arch_found = 1;
359 if (matching_pkgs->len < 1) {
360 if (wrong_arch_found)
361 opkg_msg(ERROR, "Packages for %s found, but"
362 " incompatible with the architectures configured\n",
364 pkg_vec_free(matching_pkgs);
365 abstract_pkg_vec_free(matching_apkgs);
366 abstract_pkg_vec_free(providers);
371 if (matching_pkgs->len > 1)
372 pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
373 if (matching_apkgs->len > 1)
374 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
376 for (i = 0; i < matching_pkgs->len; i++) {
377 pkg_t *matching = matching_pkgs->pkgs[i];
378 if (constraint_fcn(matching, cdata)) {
379 opkg_msg(DEBUG, "Candidate: %s %s.\n",
380 matching->name, matching->version) ;
381 good_pkg_by_name = matching;
382 /* It has been provided by hand, so it is what user want */
383 if (matching->provided_by_hand == 1)
389 for (i = 0; i < matching_pkgs->len; i++) {
390 pkg_t *matching = matching_pkgs->pkgs[i];
391 latest_matching = matching;
392 if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
393 latest_installed_parent = matching;
394 if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
396 opkg_msg(NOTICE, "Multiple packages (%s and %s) providing"
397 " same name marked HOLD or PREFER. "
399 held_pkg->name, matching->name);
404 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
406 for (i = 0; i < matching_pkgs->len; i++) {
407 pkg_t *matching = matching_pkgs->pkgs[i];
408 if (matching->arch_priority > prio) {
409 priorized_matching = matching;
410 prio = matching->arch_priority;
411 opkg_msg(DEBUG, "Match %s with priority %i.\n",
412 matching->name, prio);
418 if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
419 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
420 matching_pkgs->len, apkg->name);
421 for (i = 0; i < matching_pkgs->len; i++) {
422 pkg_t *matching = matching_pkgs->pkgs[i];
423 opkg_msg(INFO, "%s %s %s\n",
424 matching->name, matching->version,
425 matching->architecture);
429 nmatching = matching_apkgs->len;
431 pkg_vec_free(matching_pkgs);
432 abstract_pkg_vec_free(matching_apkgs);
433 abstract_pkg_vec_free(providers);
435 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
436 return good_pkg_by_name;
439 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
442 if (latest_installed_parent) {
443 opkg_msg(INFO, "Using latest version of installed package %s.\n",
444 latest_installed_parent->name);
445 return latest_installed_parent;
447 if (priorized_matching) {
448 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
449 priorized_matching->name, priorized_matching->version,
450 priorized_matching->architecture);
451 return priorized_matching;
454 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
458 if (latest_matching) {
459 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
460 latest_matching->name, latest_matching->version,
461 latest_matching->architecture);
462 return latest_matching;
468 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
470 const char *name = (const char *)cdata;
472 if (strcmp(pkg->name, name) == 0)
479 pkg_vec_fetch_by_name(const char *pkg_name)
481 abstract_pkg_t * ab_pkg;
483 if(!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
489 if (ab_pkg->provided_by) {
490 abstract_pkg_t *abpkg = abstract_pkg_vec_get(ab_pkg->provided_by, 0);
502 pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
504 abstract_pkg_t *apkg = NULL;
506 if (!(apkg = abstract_pkg_fetch_by_name(name)))
509 return pkg_hash_fetch_best_installation_candidate(apkg,
510 pkg_name_constraint_fcn, apkg->name, 0);
515 pkg_hash_fetch_by_name_version(const char *pkg_name, const char * version)
519 char *version_str = NULL;
521 if(!(vec = pkg_vec_fetch_by_name(pkg_name)))
524 for(i = 0; i < vec->len; i++) {
525 version_str = pkg_version_str_alloc(vec->pkgs[i]);
526 if(!strcmp(version_str, version)) {
540 pkg_hash_fetch_installed_by_name_dest(const char *pkg_name, pkg_dest_t *dest)
545 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
549 for (i = 0; i < vec->len; i++)
550 if((vec->pkgs[i]->state_status == SS_INSTALLED
551 || vec->pkgs[i]->state_status == SS_UNPACKED)
552 && vec->pkgs[i]->dest == dest) {
560 pkg_hash_fetch_installed_by_name(const char *pkg_name)
565 if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
569 for (i = 0; i < vec->len; i++) {
570 if (vec->pkgs[i]->state_status == SS_INSTALLED
571 || vec->pkgs[i]->state_status == SS_UNPACKED) {
581 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
584 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
585 pkg_vec_t *all = (pkg_vec_t *)data;
586 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
591 for (j = 0; j < pkg_vec->len; j++) {
592 pkg_t *pkg = pkg_vec->pkgs[j];
593 pkg_vec_insert(all, pkg);
598 pkg_hash_fetch_available(pkg_vec_t *all)
600 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
605 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
607 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
608 pkg_vec_t *all = (pkg_vec_t *)data;
609 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
615 for (j = 0; j < pkg_vec->len; j++) {
616 pkg_t *pkg = pkg_vec->pkgs[j];
617 if (pkg->state_status == SS_INSTALLED
618 || pkg->state_status == SS_UNPACKED)
619 pkg_vec_insert(all, pkg);
624 pkg_hash_fetch_all_installed(pkg_vec_t *all)
626 hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
631 * This assumes that the abstract pkg doesn't exist.
633 static abstract_pkg_t *
634 add_new_abstract_pkg_by_name(const char *pkg_name)
636 abstract_pkg_t *ab_pkg;
638 ab_pkg = abstract_pkg_new();
640 ab_pkg->name = xstrdup(pkg_name);
641 hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
648 ensure_abstract_pkg_by_name(const char *pkg_name)
650 abstract_pkg_t * ab_pkg;
652 if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
653 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
659 hash_insert_pkg(pkg_t *pkg, int set_status)
661 abstract_pkg_t * ab_pkg;
663 ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
665 ab_pkg->pkgs = pkg_vec_alloc();
667 if (pkg->state_status == SS_INSTALLED) {
668 ab_pkg->state_status = SS_INSTALLED;
669 } else if (pkg->state_status == SS_UNPACKED) {
670 ab_pkg->state_status = SS_UNPACKED;
675 buildProvides(ab_pkg, pkg);
677 /* Need to build the conflicts graph before replaces for correct
678 * calculation of replaced_by relation.
682 buildReplaces(ab_pkg, pkg);
684 buildDependedUponBy(pkg, ab_pkg);
686 pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
687 pkg->parent = ab_pkg;
691 strip_offline_root(const char *file_name)
695 if (conf->offline_root) {
696 len = strlen(conf->offline_root);
697 if (strncmp(file_name, conf->offline_root, len) == 0)
705 file_hash_remove(const char *file_name)
707 file_name = strip_offline_root(file_name);
708 hash_table_remove(&conf->file_hash, file_name);
712 file_hash_get_file_owner(const char *file_name)
714 file_name = strip_offline_root(file_name);
715 return hash_table_get(&conf->file_hash, file_name);
719 file_hash_set_file_owner(const char *file_name, pkg_t *owning_pkg)
721 pkg_t *old_owning_pkg;
722 int file_name_len = strlen(file_name);
724 if (file_name[file_name_len -1] == '/')
727 file_name = strip_offline_root(file_name);
729 old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
730 hash_table_insert(&conf->file_hash, file_name, owning_pkg);
732 if (old_owning_pkg) {
733 pkg_get_installed_files(old_owning_pkg);
734 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
735 pkg_free_installed_files(old_owning_pkg);
737 /* mark this package to have its filelist written */
738 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
739 owning_pkg->state_flag |= SF_FILELIST_CHANGED;