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 "pkg_parse.h"
26 #include "opkg_utils.h"
27 #include "sprintf_alloc.h"
28 #include "file_util.h"
29 #include "libbb/libbb.h"
34 hash_table_init("pkg-hash", &conf
->pkg_hash
,
35 OPKG_CONF_DEFAULT_HASH_LEN
);
39 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
);
68 hash_table_foreach(&conf
->pkg_hash
, free_pkgs
, NULL
);
69 hash_table_deinit(&conf
->pkg_hash
);
73 pkg_hash_add_from_file(const char *file_name
,
74 pkg_src_t
*src
, pkg_dest_t
*dest
, int is_status_file
)
79 const size_t len
= 4096;
82 fp
= fopen(file_name
, "r");
84 opkg_perror(ERROR
, "Failed to open %s", file_name
);
95 ret
= pkg_parse_from_stream_nomalloc(pkg
, fp
, 0,
103 /* Probably a blank line, continue parsing. */
108 if (!pkg
->architecture
) {
109 char *version_str
= pkg_version_str_alloc(pkg
);
110 opkg_msg(ERROR
, "Package %s version %s has no "
111 "architecture specified, ignoring.\n",
112 pkg
->name
, version_str
);
117 hash_insert_pkg(pkg
, is_status_file
);
128 * Load in feed files from the cached "src" and/or "src/gz" locations.
131 pkg_hash_load_feeds(void)
133 pkg_src_list_elt_t
*iter
;
135 char *list_file
, *lists_dir
;
137 opkg_msg(INFO
, "\n");
139 lists_dir
= conf
->restrict_to_default_dest
?
140 conf
->default_dest
->lists_dir
: conf
->lists_dir
;
142 for (iter
= void_list_first(&conf
->pkg_src_list
); iter
;
143 iter
= void_list_next(&conf
->pkg_src_list
, iter
)) {
145 src
= (pkg_src_t
*)iter
->data
;
147 sprintf_alloc(&list_file
, "%s/%s", lists_dir
, src
->name
);
149 if (file_exists(list_file
)) {
150 if (pkg_hash_add_from_file(list_file
, src
, NULL
, 0)) {
162 * Load in status files from the configured "dest"s.
165 pkg_hash_load_status_files(void)
167 pkg_dest_list_elt_t
*iter
;
170 opkg_msg(INFO
, "\n");
172 for (iter
= void_list_first(&conf
->pkg_dest_list
); iter
;
173 iter
= void_list_next(&conf
->pkg_dest_list
, iter
)) {
175 dest
= (pkg_dest_t
*)iter
->data
;
177 if (file_exists(dest
->status_file_name
)) {
178 if (pkg_hash_add_from_file(dest
->status_file_name
, NULL
, dest
, 1))
186 static abstract_pkg_t
*
187 abstract_pkg_fetch_by_name(const char * pkg_name
)
189 return (abstract_pkg_t
*)hash_table_get(&conf
->pkg_hash
, pkg_name
);
193 pkg_hash_fetch_best_installation_candidate(abstract_pkg_t
*apkg
,
194 int (*constraint_fcn
)(pkg_t
*pkg
, void *cdata
),
195 void *cdata
, int quiet
)
200 int wrong_arch_found
= 0;
201 pkg_vec_t
*matching_pkgs
;
202 abstract_pkg_vec_t
*matching_apkgs
;
203 abstract_pkg_vec_t
*provided_apkg_vec
;
204 abstract_pkg_t
**provided_apkgs
;
205 abstract_pkg_vec_t
*providers
;
206 pkg_t
*latest_installed_parent
= NULL
;
207 pkg_t
*latest_matching
= NULL
;
208 pkg_t
*priorized_matching
= NULL
;
209 pkg_t
*held_pkg
= NULL
;
210 pkg_t
*good_pkg_by_name
= NULL
;
212 if (apkg
== NULL
|| apkg
->provided_by
== NULL
|| (apkg
->provided_by
->len
== 0))
215 matching_pkgs
= pkg_vec_alloc();
216 matching_apkgs
= abstract_pkg_vec_alloc();
217 providers
= abstract_pkg_vec_alloc();
219 opkg_msg(DEBUG
, "Best installation candidate for %s:\n", apkg
->name
);
221 provided_apkg_vec
= apkg
->provided_by
;
222 nprovides
= provided_apkg_vec
->len
;
223 provided_apkgs
= provided_apkg_vec
->pkgs
;
225 opkg_msg(DEBUG
, "apkg=%s nprovides=%d.\n", apkg
->name
, nprovides
);
227 /* accumulate all the providers */
228 for (i
= 0; i
< nprovides
; i
++) {
229 abstract_pkg_t
*provider_apkg
= provided_apkgs
[i
];
230 opkg_msg(DEBUG
, "Adding %s to providers.\n", provider_apkg
->name
);
231 abstract_pkg_vec_insert(providers
, provider_apkg
);
233 nprovides
= providers
->len
;
235 for (i
= 0; i
< nprovides
; i
++) {
236 abstract_pkg_t
*provider_apkg
= abstract_pkg_vec_get(providers
, i
);
237 abstract_pkg_t
*replacement_apkg
= NULL
;
240 if (provider_apkg
->replaced_by
&& provider_apkg
->replaced_by
->len
) {
241 replacement_apkg
= provider_apkg
->replaced_by
->pkgs
[0];
242 if (provider_apkg
->replaced_by
->len
> 1) {
243 opkg_msg(NOTICE
, "Multiple replacers for %s, "
244 "using first one (%s).\n",
245 provider_apkg
->name
, replacement_apkg
->name
);
249 if (replacement_apkg
)
250 opkg_msg(DEBUG
, "replacement_apkg=%s for provider_apkg=%s.\n",
251 replacement_apkg
->name
, provider_apkg
->name
);
253 if (replacement_apkg
&& (replacement_apkg
!= provider_apkg
)) {
254 if (abstract_pkg_vec_contains(providers
, replacement_apkg
))
257 provider_apkg
= replacement_apkg
;
260 if (!(vec
= provider_apkg
->pkgs
)) {
261 opkg_msg(DEBUG
, "No pkgs for provider_apkg %s.\n",
262 provider_apkg
->name
);
267 /* now check for supported architecture */
271 /* count packages matching max arch priority and keep track of last one */
272 for (j
=0; j
<vec
->len
; j
++) {
273 pkg_t
*maybe
= vec
->pkgs
[j
];
274 opkg_msg(DEBUG
, "%s arch=%s arch_priority=%d version=%s.\n",
275 maybe
->name
, maybe
->architecture
,
276 maybe
->arch_priority
, maybe
->version
);
277 /* We make sure not to add the same package twice. Need to search for the reason why
278 they show up twice sometimes. */
279 if ((maybe
->arch_priority
> 0) && (! pkg_vec_contains(matching_pkgs
, maybe
))) {
281 abstract_pkg_vec_insert(matching_apkgs
, maybe
->parent
);
282 pkg_vec_insert(matching_pkgs
, maybe
);
286 if (vec
->len
> 0 && matching_pkgs
->len
< 1)
287 wrong_arch_found
= 1;
291 if (matching_pkgs
->len
< 1) {
292 if (wrong_arch_found
)
293 opkg_msg(ERROR
, "Packages for %s found, but"
294 " incompatible with the architectures configured\n",
296 pkg_vec_free(matching_pkgs
);
297 abstract_pkg_vec_free(matching_apkgs
);
298 abstract_pkg_vec_free(providers
);
303 if (matching_pkgs
->len
> 1)
304 pkg_vec_sort(matching_pkgs
, pkg_name_version_and_architecture_compare
);
305 if (matching_apkgs
->len
> 1)
306 abstract_pkg_vec_sort(matching_pkgs
, abstract_pkg_name_compare
);
308 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
309 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
310 if (constraint_fcn(matching
, cdata
)) {
311 opkg_msg(DEBUG
, "Candidate: %s %s.\n",
312 matching
->name
, matching
->version
) ;
313 good_pkg_by_name
= matching
;
314 /* It has been provided by hand, so it is what user want */
315 if (matching
->provided_by_hand
== 1)
321 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
322 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
323 latest_matching
= matching
;
324 if (matching
->parent
->state_status
== SS_INSTALLED
|| matching
->parent
->state_status
== SS_UNPACKED
)
325 latest_installed_parent
= matching
;
326 if (matching
->state_flag
& (SF_HOLD
|SF_PREFER
)) {
328 opkg_msg(NOTICE
, "Multiple packages (%s and %s) providing"
329 " same name marked HOLD or PREFER. "
331 held_pkg
->name
, matching
->name
);
336 if (!good_pkg_by_name
&& !held_pkg
&& !latest_installed_parent
&& matching_apkgs
->len
> 1 && !quiet
) {
338 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
339 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
340 if (matching
->arch_priority
> prio
) {
341 priorized_matching
= matching
;
342 prio
= matching
->arch_priority
;
343 opkg_msg(DEBUG
, "Match %s with priority %i.\n",
344 matching
->name
, prio
);
350 if (conf
->verbosity
>= INFO
&& matching_apkgs
->len
> 1) {
351 opkg_msg(INFO
, "%d matching pkgs for apkg=%s:\n",
352 matching_pkgs
->len
, apkg
->name
);
353 for (i
= 0; i
< matching_pkgs
->len
; i
++) {
354 pkg_t
*matching
= matching_pkgs
->pkgs
[i
];
355 opkg_msg(INFO
, "%s %s %s\n",
356 matching
->name
, matching
->version
,
357 matching
->architecture
);
361 nmatching
= matching_apkgs
->len
;
363 pkg_vec_free(matching_pkgs
);
364 abstract_pkg_vec_free(matching_apkgs
);
365 abstract_pkg_vec_free(providers
);
367 if (good_pkg_by_name
) { /* We found a good candidate, we will install it */
368 return good_pkg_by_name
;
371 opkg_msg(INFO
, "Using held package %s.\n", held_pkg
->name
);
374 if (latest_installed_parent
) {
375 opkg_msg(INFO
, "Using latest version of installed package %s.\n",
376 latest_installed_parent
->name
);
377 return latest_installed_parent
;
379 if (priorized_matching
) {
380 opkg_msg(INFO
, "Using priorized matching %s %s %s.\n",
381 priorized_matching
->name
, priorized_matching
->version
,
382 priorized_matching
->architecture
);
383 return priorized_matching
;
386 opkg_msg(INFO
, "No matching pkg out of %d matching_apkgs.\n",
390 if (latest_matching
) {
391 opkg_msg(INFO
, "Using latest matching %s %s %s.\n",
392 latest_matching
->name
, latest_matching
->version
,
393 latest_matching
->architecture
);
394 return latest_matching
;
400 pkg_name_constraint_fcn(pkg_t
*pkg
, void *cdata
)
402 const char *name
= (const char *)cdata
;
404 if (strcmp(pkg
->name
, name
) == 0)
411 pkg_vec_fetch_by_name(const char *pkg_name
)
413 abstract_pkg_t
* ab_pkg
;
415 if(!(ab_pkg
= abstract_pkg_fetch_by_name(pkg_name
)))
421 if (ab_pkg
->provided_by
) {
422 abstract_pkg_t
*abpkg
= abstract_pkg_vec_get(ab_pkg
->provided_by
, 0);
434 pkg_hash_fetch_best_installation_candidate_by_name(const char *name
)
436 abstract_pkg_t
*apkg
= NULL
;
438 if (!(apkg
= abstract_pkg_fetch_by_name(name
)))
441 return pkg_hash_fetch_best_installation_candidate(apkg
,
442 pkg_name_constraint_fcn
, apkg
->name
, 0);
447 pkg_hash_fetch_by_name_version(const char *pkg_name
, const char * version
)
451 char *version_str
= NULL
;
453 if(!(vec
= pkg_vec_fetch_by_name(pkg_name
)))
456 for(i
= 0; i
< vec
->len
; i
++) {
457 version_str
= pkg_version_str_alloc(vec
->pkgs
[i
]);
458 if(!strcmp(version_str
, version
)) {
472 pkg_hash_fetch_installed_by_name_dest(const char *pkg_name
, pkg_dest_t
*dest
)
477 if (!(vec
= pkg_vec_fetch_by_name(pkg_name
))) {
481 for (i
= 0; i
< vec
->len
; i
++)
482 if((vec
->pkgs
[i
]->state_status
== SS_INSTALLED
483 || vec
->pkgs
[i
]->state_status
== SS_UNPACKED
)
484 && vec
->pkgs
[i
]->dest
== dest
) {
492 pkg_hash_fetch_installed_by_name(const char *pkg_name
)
497 if (!(vec
= pkg_vec_fetch_by_name(pkg_name
))) {
501 for (i
= 0; i
< vec
->len
; i
++) {
502 if (vec
->pkgs
[i
]->state_status
== SS_INSTALLED
503 || vec
->pkgs
[i
]->state_status
== SS_UNPACKED
) {
513 pkg_hash_fetch_available_helper(const char *pkg_name
, void *entry
, void *data
)
516 abstract_pkg_t
*ab_pkg
= (abstract_pkg_t
*)entry
;
517 pkg_vec_t
*all
= (pkg_vec_t
*)data
;
518 pkg_vec_t
*pkg_vec
= ab_pkg
->pkgs
;
523 for (j
= 0; j
< pkg_vec
->len
; j
++) {
524 pkg_t
*pkg
= pkg_vec
->pkgs
[j
];
525 pkg_vec_insert(all
, pkg
);
530 pkg_hash_fetch_available(pkg_vec_t
*all
)
532 hash_table_foreach(&conf
->pkg_hash
, pkg_hash_fetch_available_helper
,
537 pkg_hash_fetch_all_installed_helper(const char *pkg_name
, void *entry
, void *data
)
539 abstract_pkg_t
*ab_pkg
= (abstract_pkg_t
*)entry
;
540 pkg_vec_t
*all
= (pkg_vec_t
*)data
;
541 pkg_vec_t
*pkg_vec
= ab_pkg
->pkgs
;
547 for (j
= 0; j
< pkg_vec
->len
; j
++) {
548 pkg_t
*pkg
= pkg_vec
->pkgs
[j
];
549 if (pkg
->state_status
== SS_INSTALLED
550 || pkg
->state_status
== SS_UNPACKED
)
551 pkg_vec_insert(all
, pkg
);
556 pkg_hash_fetch_all_installed(pkg_vec_t
*all
)
558 hash_table_foreach(&conf
->pkg_hash
, pkg_hash_fetch_all_installed_helper
,
563 * This assumes that the abstract pkg doesn't exist.
565 static abstract_pkg_t
*
566 add_new_abstract_pkg_by_name(const char *pkg_name
)
568 abstract_pkg_t
*ab_pkg
;
570 ab_pkg
= abstract_pkg_new();
572 ab_pkg
->name
= xstrdup(pkg_name
);
573 hash_table_insert(&conf
->pkg_hash
, pkg_name
, ab_pkg
);
580 ensure_abstract_pkg_by_name(const char *pkg_name
)
582 abstract_pkg_t
* ab_pkg
;
584 if (!(ab_pkg
= abstract_pkg_fetch_by_name(pkg_name
)))
585 ab_pkg
= add_new_abstract_pkg_by_name(pkg_name
);
591 hash_insert_pkg(pkg_t
*pkg
, int set_status
)
593 abstract_pkg_t
* ab_pkg
;
595 ab_pkg
= ensure_abstract_pkg_by_name(pkg
->name
);
597 ab_pkg
->pkgs
= pkg_vec_alloc();
599 if (pkg
->state_status
== SS_INSTALLED
) {
600 ab_pkg
->state_status
= SS_INSTALLED
;
601 } else if (pkg
->state_status
== SS_UNPACKED
) {
602 ab_pkg
->state_status
= SS_UNPACKED
;
607 buildProvides(ab_pkg
, pkg
);
609 /* Need to build the conflicts graph before replaces for correct
610 * calculation of replaced_by relation.
614 buildReplaces(ab_pkg
, pkg
);
616 buildDependedUponBy(pkg
, ab_pkg
);
618 pkg_vec_insert_merge(ab_pkg
->pkgs
, pkg
, set_status
);
619 pkg
->parent
= ab_pkg
;
624 file_hash_get_file_owner(const char *file_name
)
626 return hash_table_get(&conf
->file_hash
, file_name
);
630 file_hash_set_file_owner(const char *file_name
, pkg_t
*owning_pkg
)
632 pkg_t
*old_owning_pkg
= hash_table_get(&conf
->file_hash
, file_name
);
633 int file_name_len
= strlen(file_name
);
635 if (file_name
[file_name_len
-1] == '/')
638 if (conf
->offline_root
) {
639 unsigned int len
= strlen(conf
->offline_root
);
640 if (strncmp(file_name
, conf
->offline_root
, len
) == 0) {
645 hash_table_insert(&conf
->file_hash
, file_name
, owning_pkg
);
647 if (old_owning_pkg
) {
648 pkg_get_installed_files(old_owning_pkg
);
649 str_list_remove_elt(old_owning_pkg
->installed_files
, file_name
);
650 pkg_free_installed_files(old_owning_pkg
);
652 /* mark this package to have its filelist written */
653 old_owning_pkg
->state_flag
|= SF_FILELIST_CHANGED
;
654 owning_pkg
->state_flag
|= SF_FILELIST_CHANGED
;