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
;