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.
24 #include "hash_table.h"
26 #include "opkg_message.h"
29 #include "pkg_parse.h"
30 #include "opkg_utils.h"
31 #include "libbb/libbb.h"
34 pkg_hash_init(const char *name, hash_table_t *hash, int len)
36 hash_table_init(name, hash, len);
40 free_pkgs(const char *key, void *entry, void *data)
43 abstract_pkg_t *ab_pkg;
45 /* Each entry in the hash table is an abstract package, which contains
46 * a list of packages that provide the abstract package.
49 ab_pkg = (abstract_pkg_t*) entry;
52 for (i = 0; i < ab_pkg->pkgs->len; i++) {
53 pkg_deinit (ab_pkg->pkgs->pkgs[i]);
54 free (ab_pkg->pkgs->pkgs[i]);
58 abstract_pkg_vec_free (ab_pkg->provided_by);
59 abstract_pkg_vec_free (ab_pkg->replaced_by);
60 pkg_vec_free (ab_pkg->pkgs);
61 free (ab_pkg->depended_upon_by);
67 pkg_hash_deinit(hash_table_t *hash)
69 hash_table_foreach(hash, free_pkgs, NULL);
70 hash_table_deinit(hash);
74 /* Find the default arch for a given package status file if none is given. */
76 pkg_get_default_arch(opkg_conf_t *conf)
78 nv_pair_list_elt_t *l;
79 char *def_arch = HOST_CPU_STR; /* Default arch */
80 int def_prio = 0; /* Other archs override this */
82 list_for_each_entry(l , &conf->arch_list.head, node) {
83 nv_pair_t *nv = (nv_pair_t *)l->data;
84 int priority = strtol(nv->value, NULL, 0);
86 /* Check if this arch has higher priority, and is valid */
87 if ((priority > def_prio) &&
88 (strcmp(nv->name, "all")) && (strcmp(nv->name, "noarch"))) {
95 return xstrdup(def_arch);
99 pkg_hash_add_from_file(opkg_conf_t *conf, const char *file_name,
100 pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
102 hash_table_t *hash = &conf->pkg_hash;
106 const size_t len = 4096;
109 fp = fopen(file_name, "r");
111 fprintf(stderr, "%s: fopen(%s): %s\n",
112 __FUNCTION__, file_name, strerror(errno));
123 ret = pkg_parse_from_stream_nomalloc(pkg, fp, PFM_ALL,
131 /* Probably a blank line, continue parsing. */
136 if (!pkg->architecture) {
137 char *version_str = pkg_version_str_alloc(pkg);
138 pkg->architecture = pkg_get_default_arch(conf);
139 opkg_message(conf, OPKG_ERROR, "Package %s version %s has no architecture specified, defaulting to %s.\n",
140 pkg->name, version_str, pkg->architecture);
144 hash_insert_pkg(hash, pkg, is_status_file, conf);
154 static abstract_pkg_t *
155 abstract_pkg_fetch_by_name(hash_table_t * hash, const char * pkg_name)
157 return (abstract_pkg_t *)hash_table_get(hash, pkg_name);
161 pkg_hash_fetch_best_installation_candidate(opkg_conf_t *conf,
162 abstract_pkg_t *apkg,
163 int (*constraint_fcn)(pkg_t *pkg, void *cdata),
164 void *cdata, int quiet)
169 int wrong_arch_found = 0;
170 pkg_vec_t *matching_pkgs;
171 abstract_pkg_vec_t *matching_apkgs;
172 abstract_pkg_vec_t *provided_apkg_vec;
173 abstract_pkg_t **provided_apkgs;
174 abstract_pkg_vec_t *providers;
175 pkg_t *latest_installed_parent = NULL;
176 pkg_t *latest_matching = NULL;
177 pkg_t *priorized_matching = NULL;
178 pkg_t *held_pkg = NULL;
179 pkg_t *good_pkg_by_name = NULL;
181 if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
184 matching_pkgs = pkg_vec_alloc();
185 matching_apkgs = abstract_pkg_vec_alloc();
186 providers = abstract_pkg_vec_alloc();
188 opkg_message(conf, OPKG_DEBUG, "best installation candidate for %s\n", apkg->name);
190 provided_apkg_vec = apkg->provided_by;
191 nprovides = provided_apkg_vec->len;
192 provided_apkgs = provided_apkg_vec->pkgs;
194 opkg_message(conf, OPKG_DEBUG, " apkg=%s nprovides=%d\n", apkg->name, nprovides);
196 /* accumulate all the providers */
197 for (i = 0; i < nprovides; i++) {
198 abstract_pkg_t *provider_apkg = provided_apkgs[i];
199 opkg_message(conf, OPKG_DEBUG, " adding %s to providers\n", provider_apkg->name);
200 abstract_pkg_vec_insert(providers, provider_apkg);
202 nprovides = providers->len;
204 for (i = 0; i < nprovides; i++) {
205 abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
206 abstract_pkg_t *replacement_apkg = NULL;
209 if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
210 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
211 if (provider_apkg->replaced_by->len > 1) {
212 opkg_message(conf, OPKG_NOTICE, "Multiple replacers for %s, using first one (%s)\n",
213 provider_apkg->name, replacement_apkg->name);
217 if (replacement_apkg)
218 opkg_message(conf, OPKG_DEBUG, " replacement_apkg=%s for provider_apkg=%s\n",
219 replacement_apkg->name, provider_apkg->name);
221 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
222 if (abstract_pkg_vec_contains(providers, replacement_apkg))
225 provider_apkg = replacement_apkg;
228 if (!(vec = provider_apkg->pkgs)) {
229 opkg_message(conf, OPKG_DEBUG, " no pkgs for provider_apkg %s\n", provider_apkg->name);
234 /* now check for supported architecture */
239 /* count packages matching max arch priority and keep track of last one */
240 for (i = 0; i < vec->len; i++) {
241 pkg_t *maybe = vec->pkgs[i];
242 opkg_message(conf, OPKG_DEBUG, " %s arch=%s arch_priority=%d version=%s \n",
243 maybe->name, maybe->architecture, maybe->arch_priority, maybe->version);
244 /* We make sure not to add the same package twice. Need to search for the reason why
245 they show up twice sometimes. */
246 if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
248 abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
249 pkg_vec_insert(matching_pkgs, maybe);
253 if (vec->len > 0 && matching_pkgs->len < 1)
254 wrong_arch_found = 1;
258 if (matching_pkgs->len < 1) {
259 if (wrong_arch_found)
260 opkg_message (conf, OPKG_ERROR, "Packages for %s found, but"
261 " incompatible with the architectures configured\n",
263 pkg_vec_free(matching_pkgs);
264 abstract_pkg_vec_free(matching_apkgs);
265 abstract_pkg_vec_free(providers);
270 if (matching_pkgs->len > 1)
271 pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
272 if (matching_apkgs->len > 1)
273 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
275 /* Here it is usefull, if ( matching_apkgs->len > 1 ), to test if one of this matching packages has the same name of the
276 needed package. In this case, I would return it for install, otherwise I will continue with the procedure */
277 /* The problem is what to do when there are more than a mathing package, with the same name and several version ?
278 Until now I always got the latest, but that breaks the downgrade option.
279 If I stop at the first one, I would probably miss the new ones
280 Maybe the way is to have some kind of flag somewhere, to see if the package been asked to install is from a file,
281 or from a Packages feed.
282 It it is from a file it always need to be checked whatever version I have in feeds or everywhere, according to force-down or whatever options*/
285 for (i = 0; i < matching_pkgs->len; i++) {
286 pkg_t *matching = matching_pkgs->pkgs[i];
287 if (constraint_fcn(matching, cdata)) { /* We found it */
288 opkg_message(conf, OPKG_DEBUG, " Found a valid candidate for the install: %s %s \n", matching->name, matching->version) ;
289 good_pkg_by_name = matching;
290 if ( matching->provided_by_hand == 1 ) /* It has been provided by hand, so it is what user want */
296 for (i = 0; i < matching_pkgs->len; i++) {
297 pkg_t *matching = matching_pkgs->pkgs[i];
298 latest_matching = matching;
299 if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
300 latest_installed_parent = matching;
301 if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
303 opkg_message(conf, OPKG_NOTICE, "Multiple packages (%s and %s) providing same name marked HOLD or PREFER. Using latest.\n",
304 held_pkg->name, matching->name);
309 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
311 for (i = 0; i < matching_pkgs->len; i++) {
312 pkg_t *matching = matching_pkgs->pkgs[i];
313 if (matching->arch_priority > prio) {
314 priorized_matching = matching;
315 prio = matching->arch_priority;
316 opkg_message(conf, OPKG_DEBUG, "Match with priority %i %s\n", prio, matching->name);
322 if (conf->verbosity >= OPKG_INFO && matching_apkgs->len > 1) {
323 opkg_message(conf, OPKG_INFO, "%s: for apkg=%s, %d matching pkgs\n",
324 __FUNCTION__, apkg->name, matching_pkgs->len);
325 for (i = 0; i < matching_pkgs->len; i++) {
326 pkg_t *matching = matching_pkgs->pkgs[i];
327 opkg_message(conf, OPKG_INFO, " %s %s %s\n",
328 matching->name, matching->version, matching->architecture);
332 nmatching = matching_apkgs->len;
334 pkg_vec_free(matching_pkgs);
335 abstract_pkg_vec_free(matching_apkgs);
336 abstract_pkg_vec_free(providers);
338 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
339 return good_pkg_by_name;
342 opkg_message(conf, OPKG_INFO, " using held package %s\n", held_pkg->name);
345 if (latest_installed_parent) {
346 opkg_message(conf, OPKG_INFO, " using latest version of installed package %s\n", latest_installed_parent->name);
347 return latest_installed_parent;
349 if (priorized_matching) {
350 opkg_message(conf, OPKG_INFO, " using priorized matching %s %s %s\n",
351 priorized_matching->name, priorized_matching->version, priorized_matching->architecture);
352 return priorized_matching;
355 opkg_message(conf, OPKG_INFO, " no matching pkg out of matching_apkgs=%d\n", nmatching);
358 if (latest_matching) {
359 opkg_message(conf, OPKG_INFO, " using latest matching %s %s %s\n",
360 latest_matching->name, latest_matching->version, latest_matching->architecture);
361 return latest_matching;
367 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
369 const char *name = (const char *)cdata;
371 if (strcmp(pkg->name, name) == 0)
378 pkg_vec_fetch_by_name(hash_table_t *hash, const char *pkg_name)
380 abstract_pkg_t * ab_pkg;
382 if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
388 if (ab_pkg->provided_by) {
389 abstract_pkg_t *abpkg = abstract_pkg_vec_get(ab_pkg->provided_by, 0);
401 pkg_hash_fetch_best_installation_candidate_by_name(opkg_conf_t *conf,
404 hash_table_t *hash = &conf->pkg_hash;
405 abstract_pkg_t *apkg = NULL;
407 if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
410 return pkg_hash_fetch_best_installation_candidate(conf, apkg,
411 pkg_name_constraint_fcn, apkg->name, 0);
416 pkg_hash_fetch_by_name_version(hash_table_t *hash,
417 const char *pkg_name, const char * version)
421 char *version_str = NULL;
423 if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name)))
426 for(i = 0; i < vec->len; i++) {
427 version_str = pkg_version_str_alloc(vec->pkgs[i]);
428 if(!strcmp(version_str, version)) {
442 pkg_hash_fetch_installed_by_name_dest(hash_table_t *hash,
443 const char *pkg_name, pkg_dest_t *dest)
448 if (!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
452 for (i = 0; i < vec->len; i++)
453 if((vec->pkgs[i]->state_status == SS_INSTALLED
454 || vec->pkgs[i]->state_status == SS_UNPACKED)
455 && vec->pkgs[i]->dest == dest) {
463 pkg_hash_fetch_installed_by_name(hash_table_t *hash,
464 const char *pkg_name)
469 if (!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
473 for (i = 0; i < vec->len; i++) {
474 if (vec->pkgs[i]->state_status == SS_INSTALLED
475 || vec->pkgs[i]->state_status == SS_UNPACKED) {
485 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
488 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
489 pkg_vec_t *all = (pkg_vec_t *)data;
490 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
495 for (j = 0; j < pkg_vec->len; j++) {
496 pkg_t *pkg = pkg_vec->pkgs[j];
497 pkg_vec_insert(all, pkg);
502 pkg_hash_fetch_available(hash_table_t *hash, pkg_vec_t *all)
504 hash_table_foreach(hash, pkg_hash_fetch_available_helper, all);
508 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
510 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
511 pkg_vec_t *all = (pkg_vec_t *)data;
512 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
518 for (j = 0; j < pkg_vec->len; j++) {
519 pkg_t *pkg = pkg_vec->pkgs[j];
520 if (pkg->state_status == SS_INSTALLED
521 || pkg->state_status == SS_UNPACKED)
522 pkg_vec_insert(all, pkg);
527 pkg_hash_fetch_all_installed(hash_table_t *hash, pkg_vec_t *all)
529 hash_table_foreach(hash, pkg_hash_fetch_all_installed_helper, all);
533 * This assumes that the abstract pkg doesn't exist.
535 static abstract_pkg_t *
536 add_new_abstract_pkg_by_name(hash_table_t *hash, const char *pkg_name)
538 abstract_pkg_t *ab_pkg;
540 ab_pkg = abstract_pkg_new();
542 ab_pkg->name = xstrdup(pkg_name);
543 hash_table_insert(hash, pkg_name, ab_pkg);
550 ensure_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
552 abstract_pkg_t * ab_pkg;
554 if (!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
555 ab_pkg = add_new_abstract_pkg_by_name(hash, pkg_name);
561 hash_insert_pkg(hash_table_t *hash, pkg_t *pkg, int set_status,
564 abstract_pkg_t * ab_pkg;
569 buildDepends(hash, pkg);
571 ab_pkg = ensure_abstract_pkg_by_name(hash, pkg->name);
574 if (pkg->state_status == SS_INSTALLED) {
575 ab_pkg->state_status = SS_INSTALLED;
576 } else if (pkg->state_status == SS_UNPACKED) {
577 ab_pkg->state_status = SS_UNPACKED;
582 ab_pkg->pkgs = pkg_vec_alloc();
584 buildProvides(hash, ab_pkg, pkg);
586 /* Need to build the conflicts graph before replaces for correct
587 * calculation of replaced_by relation.
589 buildConflicts(hash, ab_pkg, pkg);
591 buildReplaces(hash, ab_pkg, pkg);
593 buildDependedUponBy(pkg, ab_pkg);
595 /* pkg_vec_insert_merge might munge package, but it returns an
598 pkg = pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status,conf );
599 pkg->parent = ab_pkg;
606 file_hash_get_file_owner(opkg_conf_t *conf, const char *file_name)
608 return hash_table_get(&conf->file_hash, file_name);
612 file_hash_set_file_owner(opkg_conf_t *conf, const char *file_name,
615 pkg_t *old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
616 int file_name_len = strlen(file_name);
618 if (file_name[file_name_len -1] == '/')
621 if (conf->offline_root) {
622 int len = strlen(conf->offline_root);
623 if (strncmp(file_name, conf->offline_root, len) == 0) {
628 hash_table_insert(&conf->file_hash, file_name, owning_pkg);
630 if (old_owning_pkg) {
631 pkg_get_installed_files(conf, old_owning_pkg);
632 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
633 pkg_free_installed_files(old_owning_pkg);
635 /* mark this package to have its filelist written */
636 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
637 owning_pkg->state_flag |= SF_FILELIST_CHANGED;