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"
22 #include "opkg_message.h"
25 #include "parse_util.h"
26 #include "pkg_parse.h"
27 #include "opkg_utils.h"
28 #include "sprintf_alloc.h"
29 #include "file_util.h"
30 #include "libbb/libbb.h"
31 #include "libbb/gzip.h"
33 void pkg_hash_init(void)
35 hash_table_init("pkg-hash", &conf
->pkg_hash
,
36 OPKG_CONF_DEFAULT_HASH_LEN
);
39 static void free_pkgs(const char *key
, void *entry
, void *data
)
42 abstract_pkg_t
*ab_pkg
;
44 /* Each entry in the hash table is an abstract package, which contains
45 * a list of packages that provide the abstract package.
48 ab_pkg
= (abstract_pkg_t
*) entry
;
51 for (i
= 0; i
< ab_pkg
->pkgs
->len
; i
++) {
52 pkg_deinit(ab_pkg
->pkgs
->pkgs
[i
]);
53 free(ab_pkg
->pkgs
->pkgs
[i
]);
57 abstract_pkg_vec_free(ab_pkg
->provided_by
);
58 abstract_pkg_vec_free(ab_pkg
->replaced_by
);
59 pkg_vec_free(ab_pkg
->pkgs
);
60 free(ab_pkg
->depended_upon_by
);
65 void pkg_hash_deinit(void)
67 hash_table_foreach(&conf
->pkg_hash
, free_pkgs
, NULL
);
68 hash_table_deinit(&conf
->pkg_hash
);
71 int dist_hash_add_from_file(const char *lists_dir
, pkg_src_t
* dist
)
73 nv_pair_list_elt_t
*l
;
74 char *list_file
, *subname
;
76 list_for_each_entry(l
, &conf
->arch_list
.head
, node
) {
77 nv_pair_t
*nv
= (nv_pair_t
*) l
->data
;
78 sprintf_alloc(&subname
, "%s-%s", dist
->name
, nv
->name
);
79 sprintf_alloc(&list_file
, "%s/%s", lists_dir
, subname
);
81 if (file_exists(list_file
)) {
82 if (pkg_hash_add_from_file(list_file
, dist
, NULL
, 0, 0, NULL
, NULL
)) {
86 pkg_src_list_append(&conf
->pkg_src_list
, subname
,
87 dist
->value
, "__dummy__", 0);
97 pkg_hash_add_from_file(const char *file_name
,
98 pkg_src_t
* src
, pkg_dest_t
* dest
, int is_status_file
, int state_flags
,
99 void (*cb
)(pkg_t
*, void *), void *priv
)
104 const size_t len
= 4096;
106 struct gzip_handle zh
;
108 if (src
&& src
->gzip
) {
109 fp
= gzip_fdopen(&zh
, file_name
);
111 fp
= fopen(file_name
, "r");
115 opkg_perror(ERROR
, "Failed to open %s", file_name
);
125 pkg
->state_flag
|= state_flags
;
127 ret
= parse_from_stream_nomalloc(pkg_parse_line
, pkg
, fp
, 0,
130 if (pkg
->name
== NULL
) {
131 /* probably just a blank line */
141 /* Probably a blank line, continue parsing. */
146 if (!(pkg
->state_flag
& SF_NEED_DETAIL
)) {
147 //opkg_msg(DEBUG, "Package %s is unrelated, ignoring.\n", pkg->name);
153 if (!pkg_get_architecture(pkg
) || !pkg_get_arch_priority(pkg
)) {
154 char *version_str
= pkg_version_str_alloc(pkg
);
155 opkg_msg(NOTICE
, "Package %s version %s has no "
156 "valid architecture, ignoring.\n",
157 pkg
->name
, version_str
);
165 hash_insert_pkg(pkg
, is_status_file
);
172 if (src
&& src
->gzip
)
179 * Load in feed files from the cached "src" and/or "src/gz" locations.
181 int pkg_hash_load_feeds(int state_flags
, void (*cb
)(pkg_t
*, void *), void *priv
)
183 pkg_src_list_elt_t
*iter
;
185 char *list_file
, *lists_dir
;
187 opkg_msg(INFO
, "\n");
189 lists_dir
= conf
->restrict_to_default_dest
?
190 conf
->default_dest
->lists_dir
: conf
->lists_dir
;
192 for (iter
= void_list_first(&conf
->pkg_src_list
); iter
;
193 iter
= void_list_next(&conf
->pkg_src_list
, iter
)) {
195 src
= (pkg_src_t
*) iter
->data
;
197 sprintf_alloc(&list_file
, "%s/%s", lists_dir
, src
->name
);
199 if (file_exists(list_file
)) {
200 if (pkg_hash_add_from_file(list_file
, src
, NULL
, 0, state_flags
, cb
, priv
)) {
212 * Load in status files from the configured "dest"s.
214 int pkg_hash_load_status_files(void (*cb
)(pkg_t
*, void *), void *priv
)
216 pkg_dest_list_elt_t
*iter
;
219 opkg_msg(INFO
, "\n");
221 for (iter
= void_list_first(&conf
->pkg_dest_list
); iter
;
222 iter
= void_list_next(&conf
->pkg_dest_list
, iter
)) {
224 dest
= (pkg_dest_t
*) iter
->data
;
226 if (file_exists(dest
->status_file_name
)) {
227 if (pkg_hash_add_from_file
228 (dest
->status_file_name
, NULL
, dest
, 1, SF_NEED_DETAIL
, cb
, priv
))
237 pkg_hash_load_package_details_helper(const char *pkg_name
, void *entry
, void *data
)
240 abstract_pkg_t
*ab_pkg
= (abstract_pkg_t
*) entry
;
242 if (ab_pkg
->state_flag
& SF_NEED_DETAIL
) {
243 if (ab_pkg
->state_flag
& SF_MARKED
) {
244 opkg_msg(DEBUG
, "skipping already seen flagged abpkg %s\n",
249 opkg_msg(DEBUG
, "found yet incomplete flagged abpkg %s\n",
253 ab_pkg
->state_flag
|= SF_MARKED
;
257 int pkg_hash_load_package_details(void)
262 pkg_hash_load_feeds(0, NULL
, NULL
);
265 hash_table_foreach(&conf
->pkg_hash
, pkg_hash_load_package_details_helper
, &n_need_detail
);
267 if (n_need_detail
> 0)
268 opkg_msg(DEBUG
, "Found %d packages requiring details, reloading feeds\n", n_need_detail
);
276 pkg_t
*pkg_hash_fetch_best_installation_candidate(abstract_pkg_t
* apkg
,
277 int (*constraint_fcn
) (pkg_t
*
281 void *cdata
, int quiet
)
286 int wrong_arch_found
= 0;
288 pkg_vec_t
*matching_pkgs
;
289 abstract_pkg_vec_t
*matching_apkgs
;
290 abstract_pkg_vec_t
*provided_apkg_vec
;
291 abstract_pkg_t
**provided_apkgs
;
292 abstract_pkg_vec_t
*providers
;
293 pkg_t
*latest_installed_parent
= NULL
;
294 pkg_t
*latest_matching
= NULL
;
295 pkg_t
*priorized_matching
= NULL
;
296 pkg_t
*held_pkg
= NULL
;
297 pkg_t
*good_pkg_by_name
= NULL
;
299 if (apkg
== NULL
|| apkg
->provided_by
== NULL
300 || (apkg
->provided_by
->len
== 0))
303 matching_pkgs
= pkg_vec_alloc();
304 matching_apkgs
= abstract_pkg_vec_alloc();
305 providers
= abstract_pkg_vec_alloc();
307 opkg_msg(DEBUG
, "Best installation candidate for %s:\n", apkg
->name
);
309 provided_apkg_vec
= apkg
->provided_by
;
310 nprovides
= provided_apkg_vec
->len
;
311 provided_apkgs
= provided_apkg_vec
->pkgs
;
313 opkg_msg(DEBUG
, "apkg=%s nprovides=%d.\n", apkg
->name
,
316 /* accumulate all the providers */
317 for (i
= 0; i
< nprovides
; i
++) {
318 abstract_pkg_t
*provider_apkg
= provided_apkgs
[i
];
319 opkg_msg(DEBUG
, "Adding %s to providers.\n",
320 provider_apkg
->name
);
321 abstract_pkg_vec_insert(providers
, provider_apkg
);
323 nprovides
= providers
->len
;
325 for (i
= 0; i
< nprovides
; i
++) {
326 abstract_pkg_t
*provider_apkg
=
327 abstract_pkg_vec_get(providers
, i
);
328 abstract_pkg_t
*replacement_apkg
= NULL
;
331 if (provider_apkg
->replaced_by
332 && provider_apkg
->replaced_by
->len
) {
333 replacement_apkg
= provider_apkg
->replaced_by
->pkgs
[0];
334 if (provider_apkg
->replaced_by
->len
> 1) {
335 opkg_msg(NOTICE
, "Multiple replacers for %s, "
336 "using first one (%s).\n",
338 replacement_apkg
->name
);
342 if (replacement_apkg
)
344 "replacement_apkg=%s for provider_apkg=%s.\n",
345 replacement_apkg
->name
, provider_apkg
->name
);
347 if (replacement_apkg
&& (replacement_apkg
!= provider_apkg
)) {
348 if (abstract_pkg_vec_contains
349 (providers
, replacement_apkg
))
352 provider_apkg
= replacement_apkg
;
355 if (!(vec
= provider_apkg
->pkgs
)) {
356 opkg_msg(DEBUG
, "No pkgs for provider_apkg %s.\n",
357 provider_apkg
->name
);
361 /* now check for supported architecture */
365 /* count packages matching max arch priority and keep track of last one */
366 for (j
= 0; j
< vec
->len
; j
++) {
367 pkg_t
*maybe
= vec
->pkgs
[j
];
368 arch_priority
= pkg_get_arch_priority(maybe
);
371 "%s arch=%s arch_priority=%d version=%s.\n",
372 maybe
->name
, pkg_get_architecture(maybe
),
373 arch_priority
, pkg_get_string(maybe
, PKG_VERSION
));
374 /* We make sure not to add the same package twice. Need to search for the reason why
375 they show up twice sometimes. */
376 if ((arch_priority
> 0)
378 (!pkg_vec_contains(matching_pkgs
, maybe
))) {
380 abstract_pkg_vec_insert(matching_apkgs
,
382 pkg_vec_insert(matching_pkgs
, maybe
);
386 if (vec
->len
> 0 && matching_pkgs
->len
< 1)
387 wrong_arch_found
= 1;
391 if (matching_pkgs
->len
< 1) {
392 if (wrong_arch_found
)
393 opkg_msg(ERROR
, "Packages for %s found, but"
394 " incompatible with the architectures configured\n",
396 pkg_vec_free(matching_pkgs
);
397 abstract_pkg_vec_free(matching_apkgs
);
398 abstract_pkg_vec_free(providers
);
402 if (matching_pkgs
->len
> 1)
403 pkg_vec_sort(matching_pkgs
,
404 pkg_name_version_and_architecture_compare
);
405 if (matching_apkgs
->len
> 1)
406 abstract_pkg_vec_sort(matching_apkgs
, abstract_pkg_name_compare
);
408 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
409 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
410 if (constraint_fcn(matching
, cdata
)) {
411 opkg_msg(DEBUG
, "Candidate: %s %s.\n",
412 matching
->name
, pkg_get_string(matching
, PKG_VERSION
));
413 good_pkg_by_name
= matching
;
414 /* It has been provided by hand, so it is what user want */
415 if (matching
->provided_by_hand
== 1)
420 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
421 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
422 latest_matching
= matching
;
423 if (matching
->parent
->state_status
== SS_INSTALLED
424 || matching
->parent
->state_status
== SS_UNPACKED
)
425 latest_installed_parent
= matching
;
426 if (matching
->state_flag
& (SF_HOLD
| SF_PREFER
)) {
429 "Multiple packages (%s and %s) providing"
430 " same name marked HOLD or PREFER. "
431 "Using latest.\n", held_pkg
->name
,
437 if (!good_pkg_by_name
&& !held_pkg
&& !latest_installed_parent
438 && matching_apkgs
->len
> 1 && !quiet
) {
440 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
441 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
442 arch_priority
= pkg_get_arch_priority(matching
);
443 if (arch_priority
> prio
) {
444 priorized_matching
= matching
;
445 prio
= arch_priority
;
446 opkg_msg(DEBUG
, "Match %s with priority %i.\n",
447 matching
->name
, prio
);
453 if (conf
->verbosity
>= INFO
&& matching_apkgs
->len
> 1) {
454 opkg_msg(INFO
, "%d matching pkgs for apkg=%s:\n",
455 matching_pkgs
->len
, apkg
->name
);
456 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
457 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
458 opkg_msg(INFO
, "%s %s %s\n",
459 matching
->name
, pkg_get_string(matching
, PKG_VERSION
),
460 pkg_get_architecture(matching
));
464 nmatching
= matching_apkgs
->len
;
466 pkg_vec_free(matching_pkgs
);
467 abstract_pkg_vec_free(matching_apkgs
);
468 abstract_pkg_vec_free(providers
);
470 if (good_pkg_by_name
) { /* We found a good candidate, we will install it */
471 return good_pkg_by_name
;
474 opkg_msg(INFO
, "Using held package %s.\n", held_pkg
->name
);
477 if (latest_installed_parent
) {
479 "Using latest version of installed package %s.\n",
480 latest_installed_parent
->name
);
481 return latest_installed_parent
;
483 if (priorized_matching
) {
484 opkg_msg(INFO
, "Using priorized matching %s %s %s.\n",
485 priorized_matching
->name
, pkg_get_string(priorized_matching
, PKG_VERSION
),
486 pkg_get_architecture(priorized_matching
));
487 return priorized_matching
;
490 opkg_msg(INFO
, "No matching pkg out of %d matching_apkgs.\n",
494 if (latest_matching
) {
495 opkg_msg(INFO
, "Using latest matching %s %s %s.\n",
496 latest_matching
->name
, pkg_get_string(latest_matching
, PKG_VERSION
),
497 pkg_get_architecture(latest_matching
));
498 return latest_matching
;
503 static int pkg_name_constraint_fcn(pkg_t
* pkg
, void *cdata
)
505 const char *name
= (const char *)cdata
;
507 if (strcmp(pkg
->name
, name
) == 0)
513 static pkg_vec_t
*pkg_vec_fetch_by_name(const char *pkg_name
)
515 abstract_pkg_t
*ab_pkg
;
517 if (!(ab_pkg
= abstract_pkg_fetch_by_name(pkg_name
)))
523 if (ab_pkg
->provided_by
) {
524 abstract_pkg_t
*abpkg
=
525 abstract_pkg_vec_get(ab_pkg
->provided_by
, 0);
535 pkg_t
*pkg_hash_fetch_best_installation_candidate_by_name(const char *name
)
537 abstract_pkg_t
*apkg
= NULL
;
539 if (!(apkg
= abstract_pkg_fetch_by_name(name
)))
542 return pkg_hash_fetch_best_installation_candidate(apkg
,
543 pkg_name_constraint_fcn
,
547 pkg_t
*pkg_hash_fetch_by_name_version(const char *pkg_name
, const char *version
)
551 char *version_str
= NULL
;
553 if (!(vec
= pkg_vec_fetch_by_name(pkg_name
)))
556 for (i
= 0; i
< vec
->len
; i
++) {
557 version_str
= pkg_version_str_alloc(vec
->pkgs
[i
]);
558 if (!strcmp(version_str
, version
)) {
571 pkg_t
*pkg_hash_fetch_installed_by_name_dest(const char *pkg_name
,
577 if (!(vec
= pkg_vec_fetch_by_name(pkg_name
))) {
581 for (i
= 0; i
< vec
->len
; i
++)
582 if ((vec
->pkgs
[i
]->state_status
== SS_INSTALLED
583 || vec
->pkgs
[i
]->state_status
== SS_UNPACKED
)
584 && vec
->pkgs
[i
]->dest
== dest
) {
591 pkg_t
*pkg_hash_fetch_installed_by_name(const char *pkg_name
)
596 if (!(vec
= pkg_vec_fetch_by_name(pkg_name
))) {
600 for (i
= 0; i
< vec
->len
; i
++) {
601 if (vec
->pkgs
[i
]->state_status
== SS_INSTALLED
602 || vec
->pkgs
[i
]->state_status
== SS_UNPACKED
) {
611 pkg_hash_fetch_available_helper(const char *pkg_name
, void *entry
, void *data
)
614 abstract_pkg_t
*ab_pkg
= (abstract_pkg_t
*) entry
;
615 pkg_vec_t
*all
= (pkg_vec_t
*) data
;
616 pkg_vec_t
*pkg_vec
= ab_pkg
->pkgs
;
621 for (j
= 0; j
< pkg_vec
->len
; j
++) {
622 pkg_t
*pkg
= pkg_vec
->pkgs
[j
];
623 pkg_vec_insert(all
, pkg
);
627 void pkg_hash_fetch_available(pkg_vec_t
* all
)
629 hash_table_foreach(&conf
->pkg_hash
, pkg_hash_fetch_available_helper
,
634 pkg_hash_fetch_all_installed_helper(const char *pkg_name
, void *entry
,
637 abstract_pkg_t
*ab_pkg
= (abstract_pkg_t
*) entry
;
638 pkg_vec_t
*all
= (pkg_vec_t
*) data
;
639 pkg_vec_t
*pkg_vec
= ab_pkg
->pkgs
;
645 for (j
= 0; j
< pkg_vec
->len
; j
++) {
646 pkg_t
*pkg
= pkg_vec
->pkgs
[j
];
647 if (pkg
->state_status
== SS_INSTALLED
648 || pkg
->state_status
== SS_UNPACKED
)
649 pkg_vec_insert(all
, pkg
);
653 void pkg_hash_fetch_all_installed(pkg_vec_t
* all
)
655 hash_table_foreach(&conf
->pkg_hash
, pkg_hash_fetch_all_installed_helper
,
660 * This assumes that the abstract pkg doesn't exist.
662 static abstract_pkg_t
*add_new_abstract_pkg_by_name(const char *pkg_name
)
664 abstract_pkg_t
*ab_pkg
;
666 ab_pkg
= abstract_pkg_new();
668 ab_pkg
->name
= xstrdup(pkg_name
);
669 hash_table_insert(&conf
->pkg_hash
, pkg_name
, ab_pkg
);
674 abstract_pkg_t
*ensure_abstract_pkg_by_name(const char *pkg_name
)
676 abstract_pkg_t
*ab_pkg
;
678 if (!(ab_pkg
= abstract_pkg_fetch_by_name(pkg_name
)))
679 ab_pkg
= add_new_abstract_pkg_by_name(pkg_name
);
684 void hash_insert_pkg(pkg_t
* pkg
, int set_status
)
686 abstract_pkg_t
*ab_pkg
;
688 ab_pkg
= ensure_abstract_pkg_by_name(pkg
->name
);
690 ab_pkg
->pkgs
= pkg_vec_alloc();
692 if (pkg
->state_status
== SS_INSTALLED
) {
693 ab_pkg
->state_status
= SS_INSTALLED
;
694 } else if (pkg
->state_status
== SS_UNPACKED
) {
695 ab_pkg
->state_status
= SS_UNPACKED
;
700 buildProvides(ab_pkg
, pkg
);
702 init_providelist(pkg
, NULL
);
704 /* Need to build the conflicts graph before replaces for correct
705 * calculation of replaced_by relation.
709 buildReplaces(ab_pkg
, pkg
);
711 buildDependedUponBy(pkg
, ab_pkg
);
713 pkg_vec_insert_merge(ab_pkg
->pkgs
, pkg
, set_status
);
714 pkg
->parent
= ab_pkg
;
717 static const char *strip_offline_root(const char *file_name
)
721 if (conf
->offline_root
) {
722 len
= strlen(conf
->offline_root
);
723 if (strncmp(file_name
, conf
->offline_root
, len
) == 0)
730 void file_hash_remove(const char *file_name
)
732 file_name
= strip_offline_root(file_name
);
733 hash_table_remove(&conf
->file_hash
, file_name
);
736 pkg_t
*file_hash_get_file_owner(const char *file_name
)
738 file_name
= strip_offline_root(file_name
);
739 return hash_table_get(&conf
->file_hash
, file_name
);
742 void file_hash_set_file_owner(const char *file_name
, pkg_t
* owning_pkg
)
744 pkg_t
*old_owning_pkg
;
745 int file_name_len
= strlen(file_name
);
747 if (file_name
[file_name_len
- 1] == '/')
750 file_name
= strip_offline_root(file_name
);
752 old_owning_pkg
= hash_table_get(&conf
->file_hash
, file_name
);
753 hash_table_insert(&conf
->file_hash
, file_name
, owning_pkg
);
755 if (old_owning_pkg
) {
756 pkg_get_installed_files(old_owning_pkg
);
757 str_list_remove_elt(old_owning_pkg
->installed_files
, file_name
);
758 pkg_free_installed_files(old_owning_pkg
);
760 /* mark this package to have its filelist written */
761 old_owning_pkg
->state_flag
|= SF_FILELIST_CHANGED
;
762 owning_pkg
->state_flag
|= SF_FILELIST_CHANGED
;