libopkg/opkg.c

   1 /* opkg.c - the opkg  package management system
   2
   3    Thomas Wood <thomas@openedhand.com>
   4
   5    Copyright (C) 2008 OpenMoko Inc
   6
   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.
  11
  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.
  16  */
  17
  18 #include <stdio.h>
  19 #include <unistd.h>
  20 #include <fnmatch.h>
  21
  22 #include "opkg.h"
  23 #include "opkg_conf.h"
  24
  25 #include "opkg_install.h"
  26 #include "opkg_configure.h"
  27 #include "opkg_download.h"
  28 #include "opkg_remove.h"
  29 #include "opkg_upgrade.h"
  30
  31 #include "sprintf_alloc.h"
  32 #include "file_util.h"
  33
  34 #include <libbb/libbb.h>
  35
  36 #define opkg_assert(expr) if (!(expr)) { \
  37     printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  38             __FILE__, __LINE__, __PRETTY_FUNCTION__, # expr); abort (); }
  39
  40 #define progress(d, p) d.percentage = p; if (progress_callback) progress_callback (&d, user_data);
  41
  42 /** Private Functions ***/
  43
  44 static int opkg_configure_packages(char *pkg_name)
  45 {
  46         pkg_vec_t *all;
  47         int i;
  48         pkg_t *pkg;
  49         int r, err = 0;
  50
  51         all = pkg_vec_alloc();
  52         pkg_hash_fetch_available(all);
  53
  54         for (i = 0; i < all->len; i++) {
  55                 pkg = all->pkgs[i];
  56
  57                 if (pkg_name && fnmatch(pkg_name, pkg->name, 0))
  58                         continue;
  59
  60                 if (pkg->state_status == SS_UNPACKED) {
  61                         r = opkg_configure(pkg);
  62                         if (r == 0) {
  63                                 pkg->state_status = SS_INSTALLED;
  64                                 pkg->parent->state_status = SS_INSTALLED;
  65                                 pkg->state_flag &= ~SF_PREFER;
  66                         } else {
  67                                 if (!err)
  68                                         err = r;
  69                         }
  70                 }
  71         }
  72
  73         pkg_vec_free(all);
  74         return err;
  75 }
  76
  77 static struct opkg_conf saved_conf;
  78 /*** Public API ***/
  79
  80 int opkg_new()
  81 {
  82         saved_conf = *conf;
  83
  84         if (opkg_conf_init())
  85                 goto err0;
  86
  87         if (opkg_conf_load())
  88                 goto err0;
  89
  90         if (pkg_hash_load_feeds(0))
  91                 goto err1;
  92
  93         if (pkg_hash_load_status_files())
  94                 goto err1;
  95
  96         return 0;
  97
  98 err1:
  99         pkg_hash_deinit();
 100 err0:
 101         opkg_conf_deinit();
 102         return -1;
 103 }
 104
 105 void opkg_free(void)
 106 {
 107         opkg_conf_deinit();
 108 }
 109
 110 int opkg_re_read_config_files(void)
 111 {
 112         opkg_free();
 113         *conf = saved_conf;
 114         return opkg_new();
 115 }
 116
 117 void opkg_get_option(char *option, void **value)
 118 {
 119         int i = 0;
 120         extern opkg_option_t options[];
 121
 122         /* look up the option
 123          * TODO: this would be much better as a hash table
 124          */
 125         while (options[i].name) {
 126                 if (strcmp(options[i].name, option) != 0) {
 127                         i++;
 128                         continue;
 129                 }
 130         }
 131
 132         /* get the option */
 133         switch (options[i].type) {
 134         case OPKG_OPT_TYPE_BOOL:
 135                 *((int *)value) = *((int *)options[i].value);
 136                 return;
 137
 138         case OPKG_OPT_TYPE_INT:
 139                 *((int *)value) = *((int *)options[i].value);
 140                 return;
 141
 142         case OPKG_OPT_TYPE_STRING:
 143                 *((char **)value) = xstrdup(options[i].value);
 144                 return;
 145         }
 146
 147 }
 148
 149 void opkg_set_option(char *option, void *value)
 150 {
 151         int i = 0, found = 0;
 152         extern opkg_option_t options[];
 153
 154         opkg_assert(option != NULL);
 155         opkg_assert(value != NULL);
 156
 157         /* look up the option
 158          * TODO: this would be much better as a hash table
 159          */
 160         while (options[i].name) {
 161                 if (strcmp(options[i].name, option) == 0) {
 162                         found = 1;
 163                         break;
 164                 }
 165                 i++;
 166         }
 167
 168         if (!found) {
 169                 opkg_msg(ERROR, "Invalid option: %s\n", option);
 170                 return;
 171         }
 172
 173         /* set the option */
 174         switch (options[i].type) {
 175         case OPKG_OPT_TYPE_BOOL:
 176                 if (*((int *)value) == 0)
 177                         *((int *)options[i].value) = 0;
 178                 else
 179                         *((int *)options[i].value) = 1;
 180                 return;
 181
 182         case OPKG_OPT_TYPE_INT:
 183                 *((int *)options[i].value) = *((int *)value);
 184                 return;
 185
 186         case OPKG_OPT_TYPE_STRING:
 187                 *((char **)options[i].value) = xstrdup(value);
 188                 return;
 189         }
 190
 191 }
 192
 193 /**
 194  * @brief libopkg API: Install package
 195  * @param package_name The name of package in which is going to install
 196  * @param progress_callback The callback function that report the status to caller.
 197  */
 198 int
 199 opkg_install_package(const char *package_name,
 200                      opkg_progress_callback_t progress_callback,
 201                      void *user_data)
 202 {
 203         int err;
 204         char *stripped_filename, *local_filename;
 205         opkg_progress_data_t pdata;
 206         pkg_t *old, *new;
 207         pkg_vec_t *deps, *all;
 208         int i;
 209         char **unresolved = NULL;
 210         const char *filename;
 211
 212         opkg_assert(package_name != NULL);
 213
 214         /* ... */
 215         pkg_info_preinstall_check();
 216
 217         /* check to ensure package is not already installed */
 218         old = pkg_hash_fetch_installed_by_name(package_name);
 219         if (old) {
 220                 opkg_msg(ERROR, "Package %s is already installed\n",
 221                          package_name);
 222                 return -1;
 223         }
 224
 225         new = pkg_hash_fetch_best_installation_candidate_by_name(package_name);
 226         if (!new) {
 227                 opkg_msg(ERROR, "Couldn't find package %s\n", package_name);
 228                 return -1;
 229         }
 230
 231         new->state_flag |= SF_USER;
 232
 233         pdata.action = -1;
 234         pdata.pkg = new;
 235
 236         progress(pdata, 0);
 237
 238         /* find dependancies and download them */
 239         deps = pkg_vec_alloc();
 240         /* this function does not return the original package, so we insert it later */
 241         pkg_hash_fetch_unsatisfied_dependencies(new, deps, &unresolved);
 242         if (unresolved) {
 243                 char **tmp = unresolved;
 244                 opkg_msg(ERROR, "Couldn't satisfy the following dependencies"
 245                          " for %s:\n", package_name);
 246                 while (*tmp) {
 247                         opkg_msg(ERROR, "\t%s", *tmp);
 248                         free(*tmp);
 249                         tmp++;
 250                 }
 251                 free(unresolved);
 252                 pkg_vec_free(deps);
 253                 opkg_message(ERROR, "\n");
 254                 return -1;
 255         }
 256
 257         /* insert the package we are installing so that we download it */
 258         pkg_vec_insert(deps, new);
 259
 260         /* download package and dependencies */
 261         for (i = 0; i < deps->len; i++) {
 262                 pkg_t *pkg;
 263                 char *url;
 264
 265                 pkg = deps->pkgs[i];
 266                 if (pkg_get_string(pkg, PKG_LOCAL_FILENAME))
 267                         continue;
 268
 269                 pdata.pkg = pkg;
 270                 pdata.action = OPKG_DOWNLOAD;
 271
 272                 if (pkg->src == NULL) {
 273                         opkg_msg(ERROR, "Package %s not available from any "
 274                                  "configured src\n", package_name);
 275                         return -1;
 276                 }
 277
 278                 filename = pkg_get_string(pkg, PKG_FILENAME);
 279
 280                 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
 281
 282                 /* Get the filename part, without any directory */
 283                 stripped_filename = strrchr(filename, '/');
 284                 if (!stripped_filename)
 285                         stripped_filename = (char *)filename;
 286
 287                 sprintf_alloc(&local_filename, "%s/%s", conf->tmp_dir,
 288                               stripped_filename);
 289
 290                 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
 291
 292                 err = opkg_download(url, local_filename, NULL, NULL, 0);
 293                 free(url);
 294
 295                 if (err) {
 296                         pkg_vec_free(deps);
 297                         return -1;
 298                 }
 299
 300         }
 301         pkg_vec_free(deps);
 302
 303         /* clear depenacy checked marks, left by pkg_hash_fetch_unsatisfied_dependencies */
 304         all = pkg_vec_alloc();
 305         pkg_hash_fetch_available(all);
 306         for (i = 0; i < all->len; i++) {
 307                 all->pkgs[i]->parent->dependencies_checked = 0;
 308         }
 309         pkg_vec_free(all);
 310
 311         /* 75% of "install" progress is for downloading */
 312         pdata.pkg = new;
 313         pdata.action = OPKG_INSTALL;
 314         progress(pdata, 75);
 315
 316         /* unpack the package */
 317         err = opkg_install_pkg(new, 0);
 318
 319         if (err) {
 320                 return -1;
 321         }
 322
 323         progress(pdata, 75);
 324
 325         /* run configure scripts, etc. */
 326         err = opkg_configure_packages(NULL);
 327         if (err) {
 328                 return -1;
 329         }
 330
 331         /* write out status files and file lists */
 332         opkg_conf_write_status_files();
 333         pkg_write_changed_filelists();
 334
 335         progress(pdata, 100);
 336         return 0;
 337 }
 338
 339 int
 340 opkg_remove_package(const char *package_name,
 341                     opkg_progress_callback_t progress_callback, void *user_data)
 342 {
 343         int err;
 344         pkg_t *pkg = NULL;
 345         pkg_t *pkg_to_remove;
 346         opkg_progress_data_t pdata;
 347
 348         opkg_assert(package_name != NULL);
 349
 350         pkg_info_preinstall_check();
 351
 352         pkg = pkg_hash_fetch_installed_by_name(package_name);
 353
 354         if (pkg == NULL || pkg->state_status == SS_NOT_INSTALLED) {
 355                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 356                 return -1;
 357         }
 358
 359         pdata.action = OPKG_REMOVE;
 360         pdata.pkg = pkg;
 361         progress(pdata, 0);
 362
 363         if (conf->restrict_to_default_dest) {
 364                 pkg_to_remove = pkg_hash_fetch_installed_by_name_dest(pkg->name,
 365                                                                       conf->
 366                                                                       default_dest);
 367         } else {
 368                 pkg_to_remove = pkg_hash_fetch_installed_by_name(pkg->name);
 369         }
 370
 371         progress(pdata, 75);
 372
 373         err = opkg_remove_pkg(pkg_to_remove, 0);
 374
 375         /* write out status files and file lists */
 376         opkg_conf_write_status_files();
 377         pkg_write_changed_filelists();
 378
 379         progress(pdata, 100);
 380         return (err) ? -1 : 0;
 381 }
 382
 383 int
 384 opkg_upgrade_package(const char *package_name,
 385                      opkg_progress_callback_t progress_callback,
 386                      void *user_data)
 387 {
 388         int err;
 389         pkg_t *pkg;
 390         opkg_progress_data_t pdata;
 391
 392         opkg_assert(package_name != NULL);
 393
 394         pkg_info_preinstall_check();
 395
 396         if (conf->restrict_to_default_dest) {
 397                 pkg = pkg_hash_fetch_installed_by_name_dest(package_name,
 398                                                             conf->default_dest);
 399         } else {
 400                 pkg = pkg_hash_fetch_installed_by_name(package_name);
 401         }
 402
 403         if (!pkg) {
 404                 opkg_msg(ERROR, "Package %s not installed\n", package_name);
 405                 return -1;
 406         }
 407
 408         pdata.action = OPKG_INSTALL;
 409         pdata.pkg = pkg;
 410         progress(pdata, 0);
 411
 412         err = opkg_upgrade_pkg(pkg);
 413         if (err) {
 414                 return -1;
 415         }
 416         progress(pdata, 75);
 417
 418         err = opkg_configure_packages(NULL);
 419         if (err) {
 420                 return -1;
 421         }
 422
 423         /* write out status files and file lists */
 424         opkg_conf_write_status_files();
 425         pkg_write_changed_filelists();
 426
 427         progress(pdata, 100);
 428         return 0;
 429 }
 430
 431 int
 432 opkg_upgrade_all(opkg_progress_callback_t progress_callback, void *user_data)
 433 {
 434         pkg_vec_t *installed;
 435         int err = 0;
 436         int i;
 437         pkg_t *pkg;
 438         opkg_progress_data_t pdata;
 439
 440         pdata.action = OPKG_INSTALL;
 441         pdata.pkg = NULL;
 442
 443         progress(pdata, 0);
 444
 445         installed = pkg_vec_alloc();
 446         pkg_info_preinstall_check();
 447
 448         pkg_hash_fetch_all_installed(installed);
 449         for (i = 0; i < installed->len; i++) {
 450                 pkg = installed->pkgs[i];
 451
 452                 pdata.pkg = pkg;
 453                 progress(pdata, 99 * i / installed->len);
 454
 455                 err += opkg_upgrade_pkg(pkg);
 456         }
 457         pkg_vec_free(installed);
 458
 459         if (err)
 460                 return 1;
 461
 462         err = opkg_configure_packages(NULL);
 463         if (err)
 464                 return 1;
 465
 466         /* write out status files and file lists */
 467         opkg_conf_write_status_files();
 468         pkg_write_changed_filelists();
 469
 470         pdata.pkg = NULL;
 471         progress(pdata, 100);
 472         return 0;
 473 }
 474
 475 int
 476 opkg_update_package_lists(opkg_progress_callback_t progress_callback,
 477                           void *user_data)
 478 {
 479         char *tmp;
 480         int err, result = 0;
 481         char *lists_dir;
 482         pkg_src_list_elt_t *iter;
 483         pkg_src_t *src;
 484         int sources_list_count, sources_done;
 485         opkg_progress_data_t pdata;
 486
 487         pdata.action = OPKG_DOWNLOAD;
 488         pdata.pkg = NULL;
 489         progress(pdata, 0);
 490
 491         sprintf_alloc(&lists_dir, "%s", (conf->restrict_to_default_dest)
 492                       ? conf->default_dest->lists_dir : conf->lists_dir);
 493
 494         if (!file_is_dir(lists_dir)) {
 495                 if (file_exists(lists_dir)) {
 496                         opkg_msg(ERROR, "%s is not a directory\n", lists_dir);
 497                         free(lists_dir);
 498                         return 1;
 499                 }
 500
 501                 err = file_mkdir_hier(lists_dir, 0755);
 502                 if (err) {
 503                         opkg_msg(ERROR, "Couldn't create lists_dir %s\n",
 504                                  lists_dir);
 505                         free(lists_dir);
 506                         return 1;
 507                 }
 508         }
 509
 510         sprintf_alloc(&tmp, "%s/update-XXXXXX", conf->tmp_dir);
 511         if (mkdtemp(tmp) == NULL) {
 512                 opkg_perror(ERROR, "Coundn't create temporary directory %s",
 513                             tmp);
 514                 free(lists_dir);
 515                 free(tmp);
 516                 return 1;
 517         }
 518
 519         /* count the number of sources so we can give some progress updates */
 520         sources_list_count = 0;
 521         sources_done = 0;
 522         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 523                 sources_list_count++;
 524         }
 525
 526         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 527                 char *url, *list_file_name = NULL;
 528
 529                 src = (pkg_src_t *) iter->data;
 530
 531                 if (src->extra_data)    /* debian style? */
 532                         sprintf_alloc(&url, "%s/%s/%s", src->value,
 533                                       src->extra_data,
 534                                       src->gzip ? "Packages.gz" : "Packages");
 535                 else
 536                         sprintf_alloc(&url, "%s/%s", src->value,
 537                                       src->gzip ? "Packages.gz" : "Packages");
 538
 539                 sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
 540
 541                 if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
 542                         opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 543                         result = -1;
 544                 }
 545                 free(url);
 546
 547 #if defined(HAVE_USIGN)
 548                 if (conf->check_signature) {
 549                         char *sig_file_name;
 550                         /* download detached signitures to verify the package lists */
 551                         /* get the url for the sig file */
 552                         if (src->extra_data)    /* debian style? */
 553                                 sprintf_alloc(&url, "%s/%s/%s", src->value,
 554                                               src->extra_data, "Packages.sig");
 555                         else
 556                                 sprintf_alloc(&url, "%s/%s", src->value,
 557                                               "Packages.sig");
 558
 559                         /* create filename for signature */
 560                         sprintf_alloc(&sig_file_name, "%s/%s.sig", lists_dir,
 561                                       src->name);
 562
 563                         /* make sure there is no existing signature file */
 564                         unlink(sig_file_name);
 565
 566                         err = opkg_download(url, sig_file_name, NULL, NULL, 0);
 567                         if (err) {
 568                                 opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
 569                         } else {
 570                                 int err;
 571                                 err = opkg_verify_file(list_file_name,
 572                                                        sig_file_name);
 573                                 if (err == 0) {
 574                                         opkg_msg(INFO, "Signature check "
 575                                                  "passed for %s",
 576                                                  list_file_name);
 577                                 } else {
 578                                         opkg_msg(ERROR, "Signature check "
 579                                                  "failed for %s",
 580                                                  list_file_name);
 581                                 }
 582                         }
 583                         free(sig_file_name);
 584                         free(url);
 585                 }
 586 #else
 587                 opkg_msg(INFO, "Signature check skipped for %s as GPG support"
 588                          " has not been enabled in this build\n",
 589                          list_file_name);
 590 #endif
 591                 free(list_file_name);
 592
 593                 sources_done++;
 594                 progress(pdata, 100 * sources_done / sources_list_count);
 595         }
 596
 597         rmdir(tmp);
 598         free(tmp);
 599         free(lists_dir);
 600
 601         /* Now re-read the package lists to update package hash tables. */
 602         opkg_re_read_config_files();
 603
 604         return result;
 605 }
 606
 607 static int pkg_compare_names_and_version(const void *a0, const void *b0)
 608 {
 609         const pkg_t *a = *(const pkg_t **)a0;
 610         const pkg_t *b = *(const pkg_t **)b0;
 611         int ret;
 612
 613         ret = strcmp(a->name, b->name);
 614
 615         if (ret == 0)
 616                 ret = pkg_compare_versions(a, b);
 617
 618         return ret;
 619 }
 620
 621 int opkg_list_packages(opkg_package_callback_t callback, void *user_data)
 622 {
 623         pkg_vec_t *all;
 624         int i;
 625
 626         opkg_assert(callback);
 627
 628         all = pkg_vec_alloc();
 629         pkg_hash_fetch_available(all);
 630
 631         pkg_vec_sort(all, pkg_compare_names_and_version);
 632
 633         for (i = 0; i < all->len; i++) {
 634                 pkg_t *pkg;
 635
 636                 pkg = all->pkgs[i];
 637
 638                 callback(pkg, user_data);
 639         }
 640
 641         pkg_vec_free(all);
 642
 643         return 0;
 644 }
 645
 646 int
 647 opkg_list_upgradable_packages(opkg_package_callback_t callback, void *user_data)
 648 {
 649         struct active_list *head;
 650         struct active_list *node;
 651         pkg_t *old = NULL, *new = NULL;
 652
 653         opkg_assert(callback);
 654
 655         /* ensure all data is valid */
 656         pkg_info_preinstall_check();
 657
 658         head = prepare_upgrade_list();
 659         for (node = active_list_next(head, head); node;
 660              node = active_list_next(head, node)) {
 661                 old = node->pkg;
 662                 new =
 663                     pkg_hash_fetch_best_installation_candidate_by_name(old->
 664                                                                        name);
 665                 if (new == NULL)
 666                         continue;
 667                 callback(new, user_data);
 668         }
 669         active_list_head_delete(head);
 670         return 0;
 671 }
 672
 673 pkg_t *opkg_find_package(const char *name, const char *ver, const char *arch,
 674                          const char *repo)
 675 {
 676         int pkg_found = 0;
 677         pkg_t *pkg = NULL;
 678         pkg_vec_t *all;
 679         int i;
 680 #define sstrcmp(x,y) (x && y) ? strcmp (x, y) : 0
 681
 682         all = pkg_vec_alloc();
 683         pkg_hash_fetch_available(all);
 684         for (i = 0; i < all->len; i++) {
 685                 char *pkgv;
 686
 687                 pkg = all->pkgs[i];
 688
 689                 /* check name */
 690                 if (sstrcmp(pkg->name, name))
 691                         continue;
 692
 693                 /* check version */
 694                 pkgv = pkg_version_str_alloc(pkg);
 695                 if (sstrcmp(pkgv, ver)) {
 696                         free(pkgv);
 697                         continue;
 698                 }
 699                 free(pkgv);
 700
 701                 /* check architecture */
 702                 if (arch) {
 703                         if (sstrcmp(pkg_get_architecture(pkg), arch))
 704                                 continue;
 705                 }
 706
 707                 /* check repository */
 708                 if (repo) {
 709                         if (sstrcmp(pkg->src->name, repo))
 710                                 continue;
 711                 }
 712
 713                 /* match found */
 714                 pkg_found = 1;
 715                 break;
 716         }
 717
 718         pkg_vec_free(all);
 719
 720         return pkg_found ? pkg : NULL;
 721 }
 722
 723 /**
 724  * @brief Check the accessibility of repositories.
 725  * @return return how many repositories cannot access. 0 means all okay.
 726  */
 727 int opkg_repository_accessibility_check(void)
 728 {
 729         pkg_src_list_elt_t *iter;
 730         str_list_elt_t *iter1;
 731         str_list_t *src;
 732         int repositories = 0;
 733         int ret = 0;
 734         char *repo_ptr;
 735         char *stmp;
 736         char *host, *end;
 737
 738         src = str_list_alloc();
 739
 740         list_for_each_entry(iter, &conf->pkg_src_list.head, node) {
 741                 host = strstr(((pkg_src_t *) iter->data)->value, "://") + 3;
 742                 end = index(host, '/');
 743                 if (strstr(((pkg_src_t *) iter->data)->value, "://") && end)
 744                         stmp = xstrndup(((pkg_src_t *) iter->data)->value,
 745                                         end -
 746                                         ((pkg_src_t *) iter->data)->value);
 747                 else
 748                         stmp = xstrdup(((pkg_src_t *) iter->data)->value);
 749
 750                 for (iter1 = str_list_first(src); iter1;
 751                      iter1 = str_list_next(src, iter1)) {
 752                         if (strstr(iter1->data, stmp))
 753                                 break;
 754                 }
 755                 if (iter1)
 756                         continue;
 757
 758                 sprintf_alloc(&repo_ptr, "%s/index.html", stmp);
 759                 free(stmp);
 760
 761                 str_list_append(src, repo_ptr);
 762                 free(repo_ptr);
 763                 repositories++;
 764         }
 765
 766         while (repositories > 0) {
 767                 iter1 = str_list_pop(src);
 768                 repositories--;
 769
 770                 if (opkg_download(iter1->data, "/dev/null", NULL, NULL, 0))
 771                         ret++;
 772                 str_list_elt_deinit(iter1);
 773         }
 774
 775         free(src);
 776
 777         return ret;
 778 }