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"
33 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name);
36 * this will talk to both feeds-lists files and installed status files
40 * pkg_hash_init(name, &hash, 1000);
41 * pkg_hash_add_from_file(<feed filename>);
43 * the query function is just there as a shell to prove to me that this
44 * sort of works, but isn't far from doing something useful
47 * modified: CDW 3 Jan. 2002
51 int pkg_hash_init(const char *name, hash_table_t *hash, int len)
53 return hash_table_init(name, hash, len);
56 void free_pkgs (const char *key, void *entry, void *data)
59 abstract_pkg_t *ab_pkg;
61 /* each entry in the hash table is an abstract package, which contains a list
62 * of packages that provide the abstract package */
64 ab_pkg = (abstract_pkg_t*) entry;
68 for (i = 0; i < ab_pkg->pkgs->len; i++)
70 pkg_deinit (ab_pkg->pkgs->pkgs[i]);
71 free (ab_pkg->pkgs->pkgs[i]);
75 abstract_pkg_vec_free (ab_pkg->provided_by);
76 abstract_pkg_vec_free (ab_pkg->replaced_by);
77 pkg_vec_free (ab_pkg->pkgs);
78 free (ab_pkg->depended_upon_by);
83 void pkg_hash_deinit(hash_table_t *hash)
85 hash_table_foreach (hash, free_pkgs, NULL);
86 hash_table_deinit(hash);
90 /* Find the default arch for a given package status file if none is given. */
91 static char *pkg_get_default_arch(opkg_conf_t *conf)
93 nv_pair_list_elt_t *l;
94 char *def_arch = HOST_CPU_STR; /* Default arch */
95 int def_prio = 0; /* Other archs override this */
97 list_for_each_entry(l , &conf->arch_list.head, node) {
98 nv_pair_t *nv = (nv_pair_t *)l->data;
99 int priority = strtol(nv->value, NULL, 0);
101 /* Check if this arch has higher priority, and is valid */
102 if ((priority > def_prio) &&
103 (strcmp(nv->name, "all")) && (strcmp(nv->name, "noarch"))) {
104 /* Our new default */
110 return xstrdup(def_arch);
113 int pkg_hash_add_from_file(opkg_conf_t *conf, const char *file_name,
114 pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
116 hash_table_t *hash = &conf->pkg_hash;
120 const size_t len = 4096;
123 fp = fopen(file_name, "r");
125 fprintf(stderr, "%s: fopen(%s): %s\n",
126 __FUNCTION__, file_name, strerror(errno));
137 ret = pkg_parse_from_stream_nomalloc(pkg, fp, PFM_ALL,
147 if (!pkg->architecture) {
148 char *version_str = pkg_version_str_alloc(pkg);
149 pkg->architecture = pkg_get_default_arch(conf);
150 opkg_message(conf, OPKG_ERROR, "Package %s version %s has no architecture specified, defaulting to %s.\n",
151 pkg->name, version_str, pkg->architecture);
155 hash_insert_pkg(hash, pkg, is_status_file, conf);
165 abstract_pkg_t * abstract_pkg_fetch_by_name(hash_table_t * hash, const char * pkg_name)
167 return (abstract_pkg_t *)hash_table_get(hash, pkg_name);
170 abstract_pkg_vec_t *pkg_hash_fetch_all_installation_candidates(hash_table_t *hash, const char *name)
172 abstract_pkg_t *apkg = abstract_pkg_fetch_by_name(hash, name);
175 return apkg->provided_by;
179 pkg_t *pkg_hash_fetch_best_installation_candidate(opkg_conf_t *conf, abstract_pkg_t *apkg,
180 int (*constraint_fcn)(pkg_t *pkg, void *cdata), void *cdata, int quiet, int *err)
185 pkg_vec_t *matching_pkgs = pkg_vec_alloc();
186 abstract_pkg_vec_t *matching_apkgs = abstract_pkg_vec_alloc();
187 abstract_pkg_vec_t *provided_apkg_vec;
188 abstract_pkg_t **provided_apkgs;
189 abstract_pkg_vec_t *providers = abstract_pkg_vec_alloc();
190 pkg_t *latest_installed_parent = NULL;
191 pkg_t *latest_matching = NULL;
192 pkg_t *priorized_matching = NULL;
193 pkg_t *held_pkg = NULL;
194 pkg_t *good_pkg_by_name = NULL;
199 if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
202 opkg_message(conf, OPKG_DEBUG, "best installation candidate for %s\n", apkg->name);
204 provided_apkg_vec = apkg->provided_by;
205 nprovides = provided_apkg_vec->len;
206 provided_apkgs = provided_apkg_vec->pkgs;
208 opkg_message(conf, OPKG_DEBUG, " apkg=%s nprovides=%d\n", apkg->name, nprovides);
210 /* accumulate all the providers */
211 for (i = 0; i < nprovides; i++) {
212 abstract_pkg_t *provider_apkg = provided_apkgs[i];
213 opkg_message(conf, OPKG_DEBUG, " adding %s to providers\n", provider_apkg->name);
214 abstract_pkg_vec_insert(providers, provider_apkg);
216 nprovides = providers->len;
218 for (i = 0; i < nprovides; i++) {
219 abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
220 abstract_pkg_t *replacement_apkg = NULL;
223 if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
224 replacement_apkg = provider_apkg->replaced_by->pkgs[0];
225 if (provider_apkg->replaced_by->len > 1) {
226 opkg_message(conf, OPKG_NOTICE, "Multiple replacers for %s, using first one (%s)\n",
227 provider_apkg->name, replacement_apkg->name);
231 if (replacement_apkg)
232 opkg_message(conf, OPKG_DEBUG, " replacement_apkg=%s for provider_apkg=%s\n",
233 replacement_apkg->name, provider_apkg->name);
235 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
236 if (abstract_pkg_vec_contains(providers, replacement_apkg))
239 provider_apkg = replacement_apkg;
242 if (!(vec = provider_apkg->pkgs)) {
243 opkg_message(conf, OPKG_DEBUG, " no pkgs for provider_apkg %s\n", provider_apkg->name);
248 /* now check for supported architecture */
253 /* count packages matching max arch priority and keep track of last one */
254 for (i = 0; i < vec->len; i++) {
255 pkg_t *maybe = vec->pkgs[i];
256 opkg_message(conf, OPKG_DEBUG, " %s arch=%s arch_priority=%d version=%s \n",
257 maybe->name, maybe->architecture, maybe->arch_priority, maybe->version);
258 /* We make sure not to add the same package twice. Need to search for the reason why
259 they show up twice sometimes. */
260 if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
262 abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
263 pkg_vec_insert(matching_pkgs, maybe);
267 if (vec->len > 0 && matching_pkgs->len < 1)
269 opkg_message (conf, OPKG_ERROR, "Packages were found, but none compatible with the architectures configured\n");
271 *err = OPKG_PKG_HAS_NO_AVAILABLE_ARCH;
276 if (matching_pkgs->len > 1)
277 pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
278 if (matching_apkgs->len > 1)
279 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
281 /* Here it is usefull, if ( matching_apkgs->len > 1 ), to test if one of this matching packages has the same name of the
282 needed package. In this case, I would return it for install, otherwise I will continue with the procedure */
283 /* The problem is what to do when there are more than a mathing package, with the same name and several version ?
284 Until now I always got the latest, but that breaks the downgrade option.
285 If I stop at the first one, I would probably miss the new ones
286 Maybe the way is to have some kind of flag somewhere, to see if the package been asked to install is from a file,
287 or from a Packages feed.
288 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*/
291 for (i = 0; i < matching_pkgs->len; i++) {
292 pkg_t *matching = matching_pkgs->pkgs[i];
293 if (constraint_fcn(matching, cdata)) { /* We found it */
294 opkg_message(conf, OPKG_DEBUG, " Found a valid candidate for the install: %s %s \n", matching->name, matching->version) ;
295 good_pkg_by_name = matching;
296 if ( matching->provided_by_hand == 1 ) /* It has been provided by hand, so it is what user want */
302 for (i = 0; i < matching_pkgs->len; i++) {
303 pkg_t *matching = matching_pkgs->pkgs[i];
304 latest_matching = matching;
305 if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
306 latest_installed_parent = matching;
307 if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
309 opkg_message(conf, OPKG_NOTICE, "Multiple packages (%s and %s) providing same name marked HOLD or PREFER. Using latest.\n",
310 held_pkg->name, matching->name);
315 if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
317 for (i = 0; i < matching_pkgs->len; i++) {
318 pkg_t *matching = matching_pkgs->pkgs[i];
319 if (matching->arch_priority > prio) {
320 priorized_matching = matching;
321 prio = matching->arch_priority;
322 opkg_message(conf, OPKG_DEBUG, "Match with priority %i %s\n", prio, matching->name);
328 if (conf->verbosity >= OPKG_INFO && matching_apkgs->len > 1) {
329 opkg_message(conf, OPKG_INFO, "%s: for apkg=%s, %d matching pkgs\n",
330 __FUNCTION__, apkg->name, matching_pkgs->len);
331 for (i = 0; i < matching_pkgs->len; i++) {
332 pkg_t *matching = matching_pkgs->pkgs[i];
333 opkg_message(conf, OPKG_INFO, " %s %s %s\n",
334 matching->name, matching->version, matching->architecture);
338 nmatching = matching_apkgs->len;
340 pkg_vec_free(matching_pkgs);
341 abstract_pkg_vec_free(matching_apkgs);
342 abstract_pkg_vec_free(providers);
344 if (good_pkg_by_name) { /* We found a good candidate, we will install it */
345 return good_pkg_by_name;
348 opkg_message(conf, OPKG_INFO, " using held package %s\n", held_pkg->name);
351 if (latest_installed_parent) {
352 opkg_message(conf, OPKG_INFO, " using latest version of installed package %s\n", latest_installed_parent->name);
353 return latest_installed_parent;
355 if (priorized_matching) {
356 opkg_message(conf, OPKG_INFO, " using priorized matching %s %s %s\n",
357 priorized_matching->name, priorized_matching->version, priorized_matching->architecture);
358 return priorized_matching;
361 opkg_message(conf, OPKG_INFO, " no matching pkg out of matching_apkgs=%d\n", nmatching);
364 if (latest_matching) {
365 opkg_message(conf, OPKG_INFO, " using latest matching %s %s %s\n",
366 latest_matching->name, latest_matching->version, latest_matching->architecture);
367 return latest_matching;
372 static int pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
374 const char *name = (const char *)cdata;
375 if (strcmp(pkg->name, name) == 0)
381 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(opkg_conf_t *conf, const char *name, int *err)
383 hash_table_t *hash = &conf->pkg_hash;
384 abstract_pkg_t *apkg = NULL;
387 if (!(apkg = abstract_pkg_fetch_by_name(hash, name)))
390 ret = pkg_hash_fetch_best_installation_candidate(conf, apkg, pkg_name_constraint_fcn, apkg->name, 0, err);
396 pkg_t * pkg_hash_fetch_by_name_version(hash_table_t *hash,
397 const char *pkg_name,
398 const char * version)
402 char *version_str = NULL;
404 if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name)))
407 for(i = 0; i < vec->len; i++) {
408 version_str = pkg_version_str_alloc(vec->pkgs[i]);
409 if(!strcmp(version_str, version)) {
422 pkg_t *pkg_hash_fetch_installed_by_name_dest(hash_table_t *hash,
423 const char *pkg_name,
429 if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))) {
433 for(i = 0; i < vec->len; i++)
434 if((vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED) && vec->pkgs[i]->dest == dest) {
440 pkg_t *pkg_hash_fetch_installed_by_name(hash_table_t *hash,
441 const char *pkg_name)
446 if(!(vec = pkg_vec_fetch_by_name(hash, pkg_name))){
450 for(i = 0; i < vec->len; i++)
451 if (vec->pkgs[i]->state_status == SS_INSTALLED || vec->pkgs[i]->state_status == SS_UNPACKED){
458 pkg_vec_t *pkg_vec_fetch_by_name(hash_table_t *hash, const char *pkg_name)
460 abstract_pkg_t * ab_pkg;
462 if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name))){
468 } else if (ab_pkg->provided_by) {
469 abstract_pkg_t *abpkg = abstract_pkg_vec_get(ab_pkg->provided_by, 0);
481 static void pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
484 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
485 pkg_vec_t *all = (pkg_vec_t *)data;
486 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
488 for (j = 0; j < pkg_vec->len; j++) {
489 pkg_t *pkg = pkg_vec->pkgs[j];
490 pkg_vec_insert(all, pkg);
495 void pkg_hash_fetch_available(hash_table_t *hash, pkg_vec_t *all)
497 hash_table_foreach(hash, pkg_hash_fetch_available_helper, all);
500 static void pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
502 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
503 pkg_vec_t *all = (pkg_vec_t *)data;
504 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
507 for (j = 0; j < pkg_vec->len; j++) {
508 pkg_t *pkg = pkg_vec->pkgs[j];
509 if (pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED) {
510 pkg_vec_insert(all, pkg);
515 void pkg_hash_fetch_all_installed(hash_table_t *hash, pkg_vec_t *all)
517 hash_table_foreach(hash, pkg_hash_fetch_all_installed_helper, all);
520 static void pkg_hash_dump_helper(const char *pkg_name, void *entry, void *data)
524 abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
525 opkg_conf_t *conf = (opkg_conf_t *)data;
526 abstract_pkg_t ** dependents = ab_pkg->depended_upon_by;
527 fprintf(stdout, "%s\n", ab_pkg->name);
529 if (dependents != NULL)
530 while (dependents [i] != NULL)
531 printf ("\tdepended upon by - %s\n", dependents [i ++]->name);
532 dependents = ab_pkg->provided_by->pkgs;
534 if (dependents != NULL)
535 while (dependents [i] != NULL && i < ab_pkg->provided_by->len)
536 printf ("\tprovided by - %s\n", dependents [i ++]->name);
537 pkg = pkg_hash_fetch_best_installation_candidate_by_name (conf, ab_pkg->name, NULL);
540 while (i < pkg->depends_count)
541 printf ("\tdepends on - %s\n", pkg->depends_str [i ++]);
544 void pkg_hash_dump(hash_table_t *hash, void *data)
547 printf ("\n\n+=+%s+=+\n\n", __FUNCTION__);
548 hash_table_foreach(hash, pkg_hash_dump_helper, data);
549 printf ("\n+=+%s+=+\n\n", __FUNCTION__);
552 abstract_pkg_t * ensure_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
554 abstract_pkg_t * ab_pkg;
556 if(!(ab_pkg = abstract_pkg_fetch_by_name(hash, pkg_name)))
557 ab_pkg = add_new_abstract_pkg_by_name(hash, pkg_name);
562 pkg_t *hash_insert_pkg(hash_table_t *hash, pkg_t *pkg, int set_status,opkg_conf_t *conf)
564 abstract_pkg_t * ab_pkg;
570 arch_priority = pkg->arch_priority;
572 buildDepends(hash, pkg);
574 ab_pkg = ensure_abstract_pkg_by_name(hash, pkg->name);
577 if (pkg->state_status == SS_INSTALLED) {
578 ab_pkg->state_status = SS_INSTALLED;
579 } else if (pkg->state_status == SS_UNPACKED) {
580 ab_pkg->state_status = SS_UNPACKED;
585 ab_pkg->pkgs = pkg_vec_alloc();
587 buildProvides(hash, ab_pkg, pkg);
589 /* need to build the conflicts graph before replaces for correct calculation of replaced_by relation */
590 buildConflicts(hash, ab_pkg, pkg);
592 buildReplaces(hash, ab_pkg, pkg);
594 buildDependedUponBy(pkg, ab_pkg);
596 /* pkg_vec_insert_merge might munge package, but it returns an unmunged pkg */
597 pkg = pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status,conf );
598 pkg->parent = ab_pkg;
604 * this will assume that we've already determined that
605 * the abstract pkg doesn't exist, 'cause we should know these things...
607 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name)
609 abstract_pkg_t * ab_pkg;
611 ab_pkg = abstract_pkg_new();
612 if (ab_pkg == NULL) { return NULL; }
614 ab_pkg->name = xstrdup(pkg_name);
615 hash_table_insert(hash, pkg_name, ab_pkg);
621 pkg_t *file_hash_get_file_owner(opkg_conf_t *conf, const char *file_name)
623 hash_table_t *file_hash = &conf->file_hash;
625 return hash_table_get(file_hash, file_name);
628 int file_hash_set_file_owner(opkg_conf_t *conf, const char *file_name, pkg_t *owning_pkg)
630 hash_table_t *file_hash = &conf->file_hash;
631 pkg_t *old_owning_pkg = hash_table_get(file_hash, file_name);
632 int file_name_len = strlen(file_name);
634 if (file_name[file_name_len -1] == '/')
637 if (conf->offline_root) {
638 int len = strlen(conf->offline_root);
639 if (strncmp(file_name, conf->offline_root, len) == 0) {
644 // opkg_message(conf, OPKG_DEBUG2, "owning_pkg=%s filename=%s\n", owning_pkg->name, file_name);
645 hash_table_insert(file_hash, file_name, owning_pkg);
646 if (old_owning_pkg) {
647 pkg_get_installed_files(conf, old_owning_pkg);
648 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
649 pkg_free_installed_files(old_owning_pkg);
650 /* mark this package to have its filelist written */
651 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
652 owning_pkg->state_flag |= SF_FILELIST_CHANGED;