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, int *err)
169 pkg_vec_t *matching_pkgs;
170 abstract_pkg_vec_t *matching_apkgs;
171 abstract_pkg_vec_t *provided_apkg_vec;
172 abstract_pkg_t **provided_apkgs;
173 abstract_pkg_vec_t *providers;
174 pkg_t *latest_installed_parent = NULL;
175 pkg_t *latest_matching = NULL;
176 pkg_t *priorized_matching = NULL;
177 pkg_t *held_pkg = NULL;
178 pkg_t *good_pkg_by_name = NULL;
183 if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
186 matching_pkgs = pkg_vec_alloc();
187 matching_apkgs = abstract_pkg_vec_alloc();
188 providers = abstract_pkg_vec_alloc();
190 opkg_message(conf, OPKG_DEBUG, "best installation candidate for %s\n", apkg->name);
192 provided_apkg_vec = apkg->provided_by;
193 nprovides = provided_apkg_vec->len;
194 provided_apkgs = provided_apkg_vec->pkgs;
196 opkg_message(conf, OPKG_DEBUG, " apkg=%s nprovides=%d\n", apkg->name, nprovides);
198 /* accumulate all the providers */
199 for (i = 0; i < nprovides; i++) {
200 abstract_pkg_t *provider_apkg = provided_apkgs[i];
201 opkg_message(conf, OPKG_DEBUG, " adding %s to providers\n", provider_apkg->name);
202 abstract_pkg_vec_insert(providers, provider_apkg);
204 nprovides = providers->len;
206 for (i = 0; i < nprovides; i++) {
207 abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
208 abstract_pkg_t *replacement_apkg = NULL;
211 if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
212 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
213 if (provider_apkg->replaced_by->len > 1) {
214 opkg_message(conf, OPKG_NOTICE, "Multiple replacers for %s, using first one (%s)\n",
215 provider_apkg->name, replacement_apkg->name);
219 if (replacement_apkg)
220 opkg_message(conf, OPKG_DEBUG, " replacement_apkg=%s for provider_apkg=%s\n",
221 replacement_apkg->name, provider_apkg->name);
223 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
224 if (abstract_pkg_vec_contains(providers, replacement_apkg))
227 provider_apkg = replacement_apkg;
230 if (!(vec = provider_apkg->pkgs)) {
231 opkg_message(conf, OPKG_DEBUG, " no pkgs for provider_apkg %s\n", provider_apkg->name);
236 /* now check for supported architecture */
241 /* count packages matching max arch priority and keep track of last one */
242 for (i = 0; i < vec->len; i++) {
243 pkg_t *maybe = vec->pkgs[i];
244 opkg_message(conf, OPKG_DEBUG, " %s arch=%s arch_priority=%d version=%s \n",
245 maybe->name, maybe->architecture, maybe->arch_priority, maybe->version);
246 /* We make sure not to add the same package twice. Need to search for the reason why
247 they show up twice sometimes. */
248 if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
250 abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
251 pkg_vec_insert(matching_pkgs, maybe);
255 if (vec->len > 0 && matching_pkgs->len < 1)
257 opkg_message (conf, OPKG_ERROR, "Packages were found, but none compatible with the architectures configured\n");
259 *err = OPKG_PKG_HAS_NO_AVAILABLE_ARCH;
264 if (matching_pkgs->len > 1)
265 pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
266 if (matching_apkgs->len > 1)
267 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
269 /* Here it is usefull, if ( matching_apkgs->len > 1 ), to test if one of this matching packages has the same name of the
270 needed package. In this case, I would return it for install, otherwise I will continue with the procedure */
271 /* The problem is what to do when there are more than a mathing package, with the same name and several version ?
272 Until now I always got the latest, but that breaks the downgrade option.
273 If I stop at the first one, I would probably miss the new ones
274 Maybe the way is to have some kind of flag somewhere, to see if the package been asked to install is from a file,
275 or from a Packages feed.
276 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*/
279 for (i = 0; i < matching_pkgs->len; i++) {
280 pkg_t *matching = matching_pkgs->pkgs[i];
281 if (constraint_fcn(matching, cdata)) { /* We found it */
282 opkg_message(conf, OPKG_DEBUG, " Found a valid candidate for the install: %s %s \n", matching->name, matching->version) ;
283 good_pkg_by_name = matching;
284 if ( matching->provided_by_hand == 1 ) /* It has been provided by hand, so it is what user want */
290 for (i = 0; i < matching_pkgs->len; i++) {
291 pkg_t *matching = matching_pkgs->pkgs[i];
292 latest_matching = matching;
293 if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
294 latest_installed_parent = matching;
295 if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
297 opkg_message(conf, OPKG_NOTICE, "Multiple packages (%s and %s) providing same name marked HOLD or PREFER. Using latest.\n",
298 held_pkg->name, matching->name);
303 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
305 for (i = 0; i < matching_pkgs->len; i++) {
306 pkg_t *matching = matching_pkgs->pkgs[i];
307 if (matching->arch_priority > prio) {
308 priorized_matching = matching;
309 prio = matching->arch_priority;
310 opkg_message(conf, OPKG_DEBUG, "Match with priority %i %s\n", prio, matching->name);
316 if (conf->verbosity >= OPKG_INFO && matching_apkgs->len > 1) {
317 opkg_message(conf, OPKG_INFO, "%s: for apkg=%s, %d matching pkgs\n",
318 __FUNCTION__, apkg->name, matching_pkgs->len);
319 for (i = 0; i < matching_pkgs->len; i++) {
320 pkg_t *matching = matching_pkgs->pkgs[i];
321 opkg_message(conf, OPKG_INFO, " %s %s %s\n",
322 matching->name, matching->version, matching->architecture);
326 nmatching = matching_apkgs->len;
328 pkg_vec_free(matching_pkgs);
329 abstract_pkg_vec_free(matching_apkgs);
330 abstract_pkg_vec_free(providers);
332 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
333 return good_pkg_by_name;
336 opkg_message(conf, OPKG_INFO, " using held package %s\n", held_pkg->name);
339 if (latest_installed_parent) {
340 opkg_message(conf, OPKG_INFO, " using latest version of installed package %s\n", latest_installed_parent->name);
341 return latest_installed_parent;
343 if (priorized_matching) {
344 opkg_message(conf, OPKG_INFO, " using priorized matching %s %s %s\n",
345 priorized_matching->name, priorized_matching->version, priorized_matching->architecture);
346 return priorized_matching;
349 opkg_message(conf, OPKG_INFO, " no matching pkg out of matching_apkgs=%d\n", nmatching);
352 if (latest_matching) {
353 opkg_message(conf, OPKG_INFO, " using latest matching %s %s %s\n",
354 latest_matching->name, latest_matching->version, latest_matching->architecture);
355 return latest_matching;
361 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
363 const char *name = (const char *)cdata;
365 if (strcmp(pkg->name, name) == 0)
372 pkg_vec_fetch_by_name(hash_table_t *hash, const char *pkg_name)
374 abstract_pkg_t * ab_pkg;
376 if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
382 if (ab_pkg->provided_by) {
383 abstract_pkg_t *abpkg = abstract_pkg_vec_get(ab_pkg->provided_by, 0);
395 pkg_hash_fetch_best_installation_candidate_by_name(opkg_conf_t *conf,
396 const char *name, int *err)
398 hash_table_t *hash = &conf->pkg_hash;
399 abstract_pkg_t *apkg = NULL;
401 if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
404 return pkg_hash_fetch_best_installation_candidate(conf, apkg,
405 pkg_name_constraint_fcn, apkg->name, 0, err);
410 pkg_hash_fetch_by_name_version(hash_table_t *hash,
411 const char *pkg_name, const char * version)
415 char *version_str = NULL;
417 if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name)))
420 for(i = 0; i < vec->len; i++) {
421 version_str = pkg_version_str_alloc(vec->pkgs[i]);
422 if(!strcmp(version_str, version)) {
436 pkg_hash_fetch_installed_by_name_dest(hash_table_t *hash,
437 const char *pkg_name, pkg_dest_t *dest)
442 if (!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
446 for (i = 0; i < vec->len; i++)
447 if((vec->pkgs[i]->state_status == SS_INSTALLED
448 || vec->pkgs[i]->state_status == SS_UNPACKED)
449 && vec->pkgs[i]->dest == dest) {
457 pkg_hash_fetch_installed_by_name(hash_table_t *hash,
458 const char *pkg_name)
463 if (!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
467 for (i = 0; i < vec->len; i++) {
468 if (vec->pkgs[i]->state_status == SS_INSTALLED
469 || vec->pkgs[i]->state_status == SS_UNPACKED) {
479 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
482 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
483 pkg_vec_t *all = (pkg_vec_t *)data;
484 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
489 for (j = 0; j < pkg_vec->len; j++) {
490 pkg_t *pkg = pkg_vec->pkgs[j];
491 pkg_vec_insert(all, pkg);
496 pkg_hash_fetch_available(hash_table_t *hash, pkg_vec_t *all)
498 hash_table_foreach(hash, pkg_hash_fetch_available_helper, all);
502 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
504 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
505 pkg_vec_t *all = (pkg_vec_t *)data;
506 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
512 for (j = 0; j < pkg_vec->len; j++) {
513 pkg_t *pkg = pkg_vec->pkgs[j];
514 if (pkg->state_status == SS_INSTALLED
515 || pkg->state_status == SS_UNPACKED)
516 pkg_vec_insert(all, pkg);
521 pkg_hash_fetch_all_installed(hash_table_t *hash, pkg_vec_t *all)
523 hash_table_foreach(hash, pkg_hash_fetch_all_installed_helper, all);
527 * This assumes that the abstract pkg doesn't exist.
529 static abstract_pkg_t *
530 add_new_abstract_pkg_by_name(hash_table_t *hash, const char *pkg_name)
532 abstract_pkg_t *ab_pkg;
534 ab_pkg = abstract_pkg_new();
536 ab_pkg->name = xstrdup(pkg_name);
537 hash_table_insert(hash, pkg_name, ab_pkg);
544 ensure_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
546 abstract_pkg_t * ab_pkg;
548 if (!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
549 ab_pkg = add_new_abstract_pkg_by_name(hash, pkg_name);
555 hash_insert_pkg(hash_table_t *hash, pkg_t *pkg, int set_status,
558 abstract_pkg_t * ab_pkg;
563 buildDepends(hash, pkg);
565 ab_pkg = ensure_abstract_pkg_by_name(hash, pkg->name);
568 if (pkg->state_status == SS_INSTALLED) {
569 ab_pkg->state_status = SS_INSTALLED;
570 } else if (pkg->state_status == SS_UNPACKED) {
571 ab_pkg->state_status = SS_UNPACKED;
576 ab_pkg->pkgs = pkg_vec_alloc();
578 buildProvides(hash, ab_pkg, pkg);
580 /* Need to build the conflicts graph before replaces for correct
581 * calculation of replaced_by relation.
583 buildConflicts(hash, ab_pkg, pkg);
585 buildReplaces(hash, ab_pkg, pkg);
587 buildDependedUponBy(pkg, ab_pkg);
589 /* pkg_vec_insert_merge might munge package, but it returns an
592 pkg = pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status,conf );
593 pkg->parent = ab_pkg;
600 file_hash_get_file_owner(opkg_conf_t *conf, const char *file_name)
602 return hash_table_get(&conf->file_hash, file_name);
606 file_hash_set_file_owner(opkg_conf_t *conf, const char *file_name,
609 pkg_t *old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
610 int file_name_len = strlen(file_name);
612 if (file_name[file_name_len -1] == '/')
615 if (conf->offline_root) {
616 int len = strlen(conf->offline_root);
617 if (strncmp(file_name, conf->offline_root, len) == 0) {
622 hash_table_insert(&conf->file_hash, file_name, owning_pkg);
624 if (old_owning_pkg) {
625 pkg_get_installed_files(conf, old_owning_pkg);
626 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
627 pkg_free_installed_files(old_owning_pkg);
629 /* mark this package to have its filelist written */
630 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
631 owning_pkg->state_flag |= SF_FILELIST_CHANGED;