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00024 #include "dbus-keyring.h"
00025 #include "dbus-userdb.h"
00026 #include <dbus/dbus-string.h>
00027 #include <dbus/dbus-list.h>
00028 #include <dbus/dbus-sysdeps.h>
00029
00066 #define NEW_KEY_TIMEOUT_SECONDS (60*5)
00067
00072 #define EXPIRE_KEYS_TIMEOUT_SECONDS (NEW_KEY_TIMEOUT_SECONDS + (60*2))
00073
00076 #define MAX_TIME_TRAVEL_SECONDS (60*5)
00077
00082 #ifdef DBUS_BUILD_TESTS
00083 #define MAX_KEYS_IN_FILE 10
00084 #else
00085 #define MAX_KEYS_IN_FILE 256
00086 #endif
00087
00091 typedef struct
00092 {
00093 dbus_int32_t id;
00095 long creation_time;
00100 DBusString secret;
00102 } DBusKey;
00103
00110 struct DBusKeyring
00111 {
00112 int refcount;
00113 DBusString username;
00114 DBusString directory;
00115 DBusString filename;
00116 DBusString filename_lock;
00117 DBusKey *keys;
00118 int n_keys;
00119 };
00120
00121 static DBusKeyring*
00122 _dbus_keyring_new (void)
00123 {
00124 DBusKeyring *keyring;
00125
00126 keyring = dbus_new0 (DBusKeyring, 1);
00127 if (keyring == NULL)
00128 goto out_0;
00129
00130 if (!_dbus_string_init (&keyring->directory))
00131 goto out_1;
00132
00133 if (!_dbus_string_init (&keyring->filename))
00134 goto out_2;
00135
00136 if (!_dbus_string_init (&keyring->filename_lock))
00137 goto out_3;
00138
00139 if (!_dbus_string_init (&keyring->username))
00140 goto out_4;
00141
00142 keyring->refcount = 1;
00143 keyring->keys = NULL;
00144 keyring->n_keys = 0;
00145
00146 return keyring;
00147
00148 out_4:
00149 _dbus_string_free (&keyring->filename_lock);
00150 out_3:
00151 _dbus_string_free (&keyring->filename);
00152 out_2:
00153 _dbus_string_free (&keyring->directory);
00154 out_1:
00155 dbus_free (keyring);
00156 out_0:
00157 return NULL;
00158 }
00159
00160 static void
00161 free_keys (DBusKey *keys,
00162 int n_keys)
00163 {
00164 int i;
00165
00166
00167
00168 i = 0;
00169 while (i < n_keys)
00170 {
00171 _dbus_string_free (&keys[i].secret);
00172 ++i;
00173 }
00174
00175 dbus_free (keys);
00176 }
00177
00178
00179
00180
00181
00182
00183
00184
00185
00186
00187
00188
00189
00190
00191
00192
00193
00195 #define MAX_LOCK_TIMEOUTS 32
00196
00197 #define LOCK_TIMEOUT_MILLISECONDS 250
00198
00199 static dbus_bool_t
00200 _dbus_keyring_lock (DBusKeyring *keyring)
00201 {
00202 int n_timeouts;
00203
00204 n_timeouts = 0;
00205 while (n_timeouts < MAX_LOCK_TIMEOUTS)
00206 {
00207 DBusError error;
00208
00209 dbus_error_init (&error);
00210 if (_dbus_create_file_exclusively (&keyring->filename_lock,
00211 &error))
00212 break;
00213
00214 _dbus_verbose ("Did not get lock file, sleeping %d milliseconds (%s)\n",
00215 LOCK_TIMEOUT_MILLISECONDS, error.message);
00216 dbus_error_free (&error);
00217
00218 _dbus_sleep_milliseconds (LOCK_TIMEOUT_MILLISECONDS);
00219
00220 ++n_timeouts;
00221 }
00222
00223 if (n_timeouts == MAX_LOCK_TIMEOUTS)
00224 {
00225 DBusError error;
00226
00227 _dbus_verbose ("Lock file timed out %d times, assuming stale\n",
00228 n_timeouts);
00229
00230 dbus_error_init (&error);
00231
00232 if (!_dbus_delete_file (&keyring->filename_lock, &error))
00233 {
00234 _dbus_verbose ("Couldn't delete old lock file: %s\n",
00235 error.message);
00236 dbus_error_free (&error);
00237 return FALSE;
00238 }
00239
00240 if (!_dbus_create_file_exclusively (&keyring->filename_lock,
00241 &error))
00242 {
00243 _dbus_verbose ("Couldn't create lock file after deleting stale one: %s\n",
00244 error.message);
00245 dbus_error_free (&error);
00246 return FALSE;
00247 }
00248 }
00249
00250 return TRUE;
00251 }
00252
00253 static void
00254 _dbus_keyring_unlock (DBusKeyring *keyring)
00255 {
00256 DBusError error;
00257 dbus_error_init (&error);
00258 if (!_dbus_delete_file (&keyring->filename_lock, &error))
00259 {
00260 _dbus_warn ("Failed to delete lock file: %s\n",
00261 error.message);
00262 dbus_error_free (&error);
00263 }
00264 }
00265
00266 static DBusKey*
00267 find_key_by_id (DBusKey *keys,
00268 int n_keys,
00269 int id)
00270 {
00271 int i;
00272
00273 i = 0;
00274 while (i < n_keys)
00275 {
00276 if (keys[i].id == id)
00277 return &keys[i];
00278
00279 ++i;
00280 }
00281
00282 return NULL;
00283 }
00284
00285 static dbus_bool_t
00286 add_new_key (DBusKey **keys_p,
00287 int *n_keys_p,
00288 DBusError *error)
00289 {
00290 DBusKey *new;
00291 DBusString bytes;
00292 int id;
00293 unsigned long timestamp;
00294 const unsigned char *s;
00295 dbus_bool_t retval;
00296 DBusKey *keys;
00297 int n_keys;
00298
00299 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00300
00301 if (!_dbus_string_init (&bytes))
00302 {
00303 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00304 return FALSE;
00305 }
00306
00307 keys = *keys_p;
00308 n_keys = *n_keys_p;
00309 retval = FALSE;
00310
00311
00312 retry:
00313
00314 if (!_dbus_generate_random_bytes (&bytes, 4))
00315 {
00316 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00317 goto out;
00318 }
00319
00320 s = (const unsigned char*) _dbus_string_get_const_data (&bytes);
00321
00322 id = s[0] | (s[1] << 8) | (s[2] << 16) | (s[3] << 24);
00323 if (id < 0)
00324 id = - id;
00325 _dbus_assert (id >= 0);
00326
00327 if (find_key_by_id (keys, n_keys, id) != NULL)
00328 {
00329 _dbus_string_set_length (&bytes, 0);
00330 _dbus_verbose ("Key ID %d already existed, trying another one\n",
00331 id);
00332 goto retry;
00333 }
00334
00335 _dbus_verbose ("Creating key with ID %d\n", id);
00336
00337 #define KEY_LENGTH_BYTES 24
00338 _dbus_string_set_length (&bytes, 0);
00339 if (!_dbus_generate_random_bytes (&bytes, KEY_LENGTH_BYTES))
00340 {
00341 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00342 goto out;
00343 }
00344
00345 new = dbus_realloc (keys, sizeof (DBusKey) * (n_keys + 1));
00346 if (new == NULL)
00347 {
00348 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00349 goto out;
00350 }
00351
00352 keys = new;
00353 *keys_p = keys;
00354 n_keys += 1;
00355
00356 if (!_dbus_string_init (&keys[n_keys-1].secret))
00357 {
00358 n_keys -= 1;
00359 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00360 goto out;
00361 }
00362
00363 _dbus_get_current_time (×tamp, NULL);
00364
00365 keys[n_keys-1].id = id;
00366 keys[n_keys-1].creation_time = timestamp;
00367 if (!_dbus_string_move (&bytes, 0,
00368 &keys[n_keys-1].secret,
00369 0))
00370 {
00371 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00372 _dbus_string_free (&keys[n_keys-1].secret);
00373 n_keys -= 1;
00374 goto out;
00375 }
00376
00377 retval = TRUE;
00378
00379 out:
00380 *n_keys_p = n_keys;
00381
00382 _dbus_string_free (&bytes);
00383 return retval;
00384 }
00385
00400 static dbus_bool_t
00401 _dbus_keyring_reload (DBusKeyring *keyring,
00402 dbus_bool_t add_new,
00403 DBusError *error)
00404 {
00405 DBusString contents;
00406 DBusString line;
00407 dbus_bool_t retval;
00408 dbus_bool_t have_lock;
00409 DBusKey *keys;
00410 int n_keys;
00411 int i;
00412 long now;
00413 DBusError tmp_error;
00414
00415 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00416
00417 if (!_dbus_string_init (&contents))
00418 {
00419 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00420 return FALSE;
00421 }
00422
00423 if (!_dbus_string_init (&line))
00424 {
00425 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00426 _dbus_string_free (&contents);
00427 return FALSE;
00428 }
00429
00430 keys = NULL;
00431 n_keys = 0;
00432 retval = FALSE;
00433 have_lock = FALSE;
00434
00435 _dbus_get_current_time (&now, NULL);
00436
00437 if (add_new)
00438 {
00439 if (!_dbus_keyring_lock (keyring))
00440 {
00441 dbus_set_error (error, DBUS_ERROR_FAILED,
00442 "Could not lock keyring file to add to it");
00443 goto out;
00444 }
00445
00446 have_lock = TRUE;
00447 }
00448
00449 dbus_error_init (&tmp_error);
00450 if (!_dbus_file_get_contents (&contents,
00451 &keyring->filename,
00452 &tmp_error))
00453 {
00454 _dbus_verbose ("Failed to load keyring file: %s\n",
00455 tmp_error.message);
00456
00457 dbus_error_free (&tmp_error);
00458 }
00459
00460 if (!_dbus_string_validate_ascii (&contents, 0,
00461 _dbus_string_get_length (&contents)))
00462 {
00463 _dbus_warn ("Secret keyring file contains non-ASCII! Ignoring existing contents\n");
00464 _dbus_string_set_length (&contents, 0);
00465 }
00466
00467
00468
00469
00470 while (_dbus_string_pop_line (&contents, &line))
00471 {
00472 int next;
00473 long val;
00474 int id;
00475 long timestamp;
00476 int len;
00477 DBusKey *new;
00478
00479
00480 if (n_keys >= (add_new ? MAX_KEYS_IN_FILE : MAX_KEYS_IN_FILE - 1))
00481 break;
00482
00483 next = 0;
00484 if (!_dbus_string_parse_int (&line, 0, &val, &next))
00485 {
00486 _dbus_verbose ("could not parse secret key ID at start of line\n");
00487 continue;
00488 }
00489
00490 if (val > _DBUS_INT_MAX || val < 0)
00491 {
00492 _dbus_verbose ("invalid secret key ID at start of line\n");
00493 continue;
00494 }
00495
00496 id = val;
00497
00498 _dbus_string_skip_blank (&line, next, &next);
00499
00500 if (!_dbus_string_parse_int (&line, next, ×tamp, &next))
00501 {
00502 _dbus_verbose ("could not parse secret key timestamp\n");
00503 continue;
00504 }
00505
00506 if (timestamp < 0 ||
00507 (now + MAX_TIME_TRAVEL_SECONDS) < timestamp ||
00508 (now - EXPIRE_KEYS_TIMEOUT_SECONDS) > timestamp)
00509 {
00510 _dbus_verbose ("dropping/ignoring %ld-seconds old key with timestamp %ld as current time is %ld\n",
00511 now - timestamp, timestamp, now);
00512 continue;
00513 }
00514
00515 _dbus_string_skip_blank (&line, next, &next);
00516
00517 len = _dbus_string_get_length (&line);
00518
00519 if ((len - next) == 0)
00520 {
00521 _dbus_verbose ("no secret key after ID and timestamp\n");
00522 continue;
00523 }
00524
00525
00526 new = dbus_realloc (keys, sizeof (DBusKey) * (n_keys + 1));
00527 if (new == NULL)
00528 {
00529 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00530 goto out;
00531 }
00532
00533 keys = new;
00534 n_keys += 1;
00535
00536 if (!_dbus_string_init (&keys[n_keys-1].secret))
00537 {
00538 n_keys -= 1;
00539 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00540 goto out;
00541 }
00542
00543 keys[n_keys-1].id = id;
00544 keys[n_keys-1].creation_time = timestamp;
00545 if (!_dbus_string_hex_decode (&line, next,
00546 &keys[n_keys-1].secret,
00547 0))
00548 {
00549 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00550 goto out;
00551 }
00552 }
00553
00554 _dbus_verbose ("Successfully loaded %d existing keys\n",
00555 n_keys);
00556
00557 if (add_new)
00558 {
00559 if (!add_new_key (&keys, &n_keys, error))
00560 {
00561 _dbus_verbose ("Failed to generate new key: %s\n",
00562 error ? "(unknown)" : error->message);
00563 goto out;
00564 }
00565
00566 _dbus_string_set_length (&contents, 0);
00567
00568 i = 0;
00569 while (i < n_keys)
00570 {
00571 if (!_dbus_string_append_int (&contents,
00572 keys[i].id))
00573 goto nomem;
00574
00575 if (!_dbus_string_append_byte (&contents, ' '))
00576 goto nomem;
00577
00578 if (!_dbus_string_append_int (&contents,
00579 keys[i].creation_time))
00580 goto nomem;
00581
00582 if (!_dbus_string_append_byte (&contents, ' '))
00583 goto nomem;
00584
00585 if (!_dbus_string_hex_encode (&keys[i].secret, 0,
00586 &contents,
00587 _dbus_string_get_length (&contents)))
00588 goto nomem;
00589
00590 if (!_dbus_string_append_byte (&contents, '\n'))
00591 goto nomem;
00592
00593 ++i;
00594 continue;
00595
00596 nomem:
00597 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00598 goto out;
00599 }
00600
00601 if (!_dbus_string_save_to_file (&contents, &keyring->filename,
00602 error))
00603 goto out;
00604 }
00605
00606 if (keyring->keys)
00607 free_keys (keyring->keys, keyring->n_keys);
00608 keyring->keys = keys;
00609 keyring->n_keys = n_keys;
00610 keys = NULL;
00611 n_keys = 0;
00612
00613 retval = TRUE;
00614
00615 out:
00616 if (have_lock)
00617 _dbus_keyring_unlock (keyring);
00618
00619 if (! ((retval == TRUE && (error == NULL || error->name == NULL)) ||
00620 (retval == FALSE && (error == NULL || error->name != NULL))))
00621 {
00622 if (error && error->name)
00623 _dbus_verbose ("error is %s: %s\n", error->name, error->message);
00624 _dbus_warn ("returning %d but error pointer %p name %s\n",
00625 retval, error, error->name ? error->name : "(none)");
00626 _dbus_assert_not_reached ("didn't handle errors properly");
00627 }
00628
00629 if (keys != NULL)
00630 {
00631 i = 0;
00632 while (i < n_keys)
00633 {
00634 _dbus_string_zero (&keys[i].secret);
00635 _dbus_string_free (&keys[i].secret);
00636 ++i;
00637 }
00638
00639 dbus_free (keys);
00640 }
00641
00642 _dbus_string_free (&contents);
00643 _dbus_string_free (&line);
00644
00645 return retval;
00646 }
00647
00649
00661 void
00662 _dbus_keyring_ref (DBusKeyring *keyring)
00663 {
00664 keyring->refcount += 1;
00665 }
00666
00673 void
00674 _dbus_keyring_unref (DBusKeyring *keyring)
00675 {
00676 keyring->refcount -= 1;
00677
00678 if (keyring->refcount == 0)
00679 {
00680 _dbus_string_free (&keyring->username);
00681 _dbus_string_free (&keyring->filename);
00682 _dbus_string_free (&keyring->filename_lock);
00683 _dbus_string_free (&keyring->directory);
00684 free_keys (keyring->keys, keyring->n_keys);
00685 dbus_free (keyring);
00686 }
00687 }
00688
00699 DBusKeyring*
00700 _dbus_keyring_new_homedir (const DBusString *username,
00701 const DBusString *context,
00702 DBusError *error)
00703 {
00704 DBusString homedir;
00705 DBusKeyring *keyring;
00706 dbus_bool_t error_set;
00707 DBusString dotdir;
00708 DBusError tmp_error;
00709
00710 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00711
00712 keyring = NULL;
00713 error_set = FALSE;
00714
00715 if (!_dbus_string_init (&homedir))
00716 {
00717 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00718 return FALSE;
00719 }
00720
00721 _dbus_string_init_const (&dotdir, ".dbus-keyrings");
00722
00723 if (username == NULL)
00724 {
00725 const DBusString *const_homedir;
00726
00727 if (!_dbus_username_from_current_process (&username) ||
00728 !_dbus_homedir_from_current_process (&const_homedir))
00729 goto failed;
00730
00731 if (!_dbus_string_copy (const_homedir, 0,
00732 &homedir, 0))
00733 goto failed;
00734 }
00735 else
00736 {
00737 if (!_dbus_homedir_from_username (username, &homedir))
00738 goto failed;
00739 }
00740
00741 #ifdef DBUS_BUILD_TESTS
00742 {
00743 const char *override;
00744
00745 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
00746 if (override != NULL && *override != '\0')
00747 {
00748 _dbus_string_set_length (&homedir, 0);
00749 if (!_dbus_string_append (&homedir, override))
00750 _dbus_assert_not_reached ("no memory");
00751
00752 _dbus_verbose ("Using fake homedir for testing: %s\n",
00753 _dbus_string_get_const_data (&homedir));
00754 }
00755 else
00756 {
00757 static dbus_bool_t already_warned = FALSE;
00758 if (!already_warned)
00759 {
00760 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
00761 already_warned = TRUE;
00762 }
00763 }
00764 }
00765 #endif
00766
00767 _dbus_assert (username != NULL);
00768
00769 keyring = _dbus_keyring_new ();
00770 if (keyring == NULL)
00771 goto failed;
00772
00773
00774 if (!_dbus_keyring_validate_context (context))
00775 {
00776 error_set = TRUE;
00777 dbus_set_error_const (error,
00778 DBUS_ERROR_FAILED,
00779 "Invalid context in keyring creation");
00780 goto failed;
00781 }
00782
00783 if (!_dbus_string_copy (username, 0,
00784 &keyring->username, 0))
00785 goto failed;
00786
00787 if (!_dbus_string_copy (&homedir, 0,
00788 &keyring->directory, 0))
00789 goto failed;
00790
00791 if (!_dbus_concat_dir_and_file (&keyring->directory,
00792 &dotdir))
00793 goto failed;
00794
00795 if (!_dbus_string_copy (&keyring->directory, 0,
00796 &keyring->filename, 0))
00797 goto failed;
00798
00799 if (!_dbus_concat_dir_and_file (&keyring->filename,
00800 context))
00801 goto failed;
00802
00803 if (!_dbus_string_copy (&keyring->filename, 0,
00804 &keyring->filename_lock, 0))
00805 goto failed;
00806
00807 if (!_dbus_string_append (&keyring->filename_lock, ".lock"))
00808 goto failed;
00809
00810 dbus_error_init (&tmp_error);
00811 if (!_dbus_keyring_reload (keyring, FALSE, &tmp_error))
00812 {
00813 _dbus_verbose ("didn't load an existing keyring: %s\n",
00814 tmp_error.message);
00815 dbus_error_free (&tmp_error);
00816 }
00817
00818
00819
00820
00821
00822 dbus_error_init (&tmp_error);
00823 if (!_dbus_create_directory (&keyring->directory,
00824 &tmp_error))
00825 {
00826 _dbus_verbose ("Creating keyring directory: %s\n",
00827 tmp_error.message);
00828 dbus_error_free (&tmp_error);
00829 }
00830
00831 _dbus_string_free (&homedir);
00832
00833 return keyring;
00834
00835 failed:
00836 if (!error_set)
00837 dbus_set_error_const (error,
00838 DBUS_ERROR_NO_MEMORY,
00839 NULL);
00840 if (keyring)
00841 _dbus_keyring_unref (keyring);
00842 _dbus_string_free (&homedir);
00843 return FALSE;
00844
00845 }
00846
00859 dbus_bool_t
00860 _dbus_keyring_validate_context (const DBusString *context)
00861 {
00862 if (_dbus_string_get_length (context) == 0)
00863 {
00864 _dbus_verbose ("context is zero-length\n");
00865 return FALSE;
00866 }
00867
00868 if (!_dbus_string_validate_ascii (context, 0,
00869 _dbus_string_get_length (context)))
00870 {
00871 _dbus_verbose ("context not valid ascii\n");
00872 return FALSE;
00873 }
00874
00875
00876 if (_dbus_string_find (context, 0, "/", NULL))
00877 {
00878 _dbus_verbose ("context contains a slash\n");
00879 return FALSE;
00880 }
00881
00882 if (_dbus_string_find (context, 0, "\\", NULL))
00883 {
00884 _dbus_verbose ("context contains a backslash\n");
00885 return FALSE;
00886 }
00887
00888
00889
00890
00891 if (_dbus_string_find (context, 0, ".", NULL))
00892 {
00893 _dbus_verbose ("context contains a dot\n");
00894 return FALSE;
00895 }
00896
00897
00898 if (_dbus_string_find_blank (context, 0, NULL))
00899 {
00900 _dbus_verbose ("context contains a blank\n");
00901 return FALSE;
00902 }
00903
00904 if (_dbus_string_find (context, 0, "\n", NULL))
00905 {
00906 _dbus_verbose ("context contains a newline\n");
00907 return FALSE;
00908 }
00909
00910 if (_dbus_string_find (context, 0, "\r", NULL))
00911 {
00912 _dbus_verbose ("context contains a carriage return\n");
00913 return FALSE;
00914 }
00915
00916 return TRUE;
00917 }
00918
00919 static DBusKey*
00920 find_recent_key (DBusKeyring *keyring)
00921 {
00922 int i;
00923 long tv_sec, tv_usec;
00924
00925 _dbus_get_current_time (&tv_sec, &tv_usec);
00926
00927 i = 0;
00928 while (i < keyring->n_keys)
00929 {
00930 DBusKey *key = &keyring->keys[i];
00931
00932 _dbus_verbose ("Key %d is %ld seconds old\n",
00933 i, tv_sec - key->creation_time);
00934
00935 if ((tv_sec - NEW_KEY_TIMEOUT_SECONDS) < key->creation_time)
00936 return key;
00937
00938 ++i;
00939 }
00940
00941 return NULL;
00942 }
00943
00955 int
00956 _dbus_keyring_get_best_key (DBusKeyring *keyring,
00957 DBusError *error)
00958 {
00959 DBusKey *key;
00960
00961 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00962
00963 key = find_recent_key (keyring);
00964 if (key)
00965 return key->id;
00966
00967
00968
00969
00970 if (!_dbus_keyring_reload (keyring, TRUE,
00971 error))
00972 return -1;
00973
00974 key = find_recent_key (keyring);
00975 if (key)
00976 return key->id;
00977 else
00978 {
00979 dbus_set_error_const (error,
00980 DBUS_ERROR_FAILED,
00981 "No recent-enough key found in keyring, and unable to create a new key");
00982 return -1;
00983 }
00984 }
00985
00994 dbus_bool_t
00995 _dbus_keyring_is_for_user (DBusKeyring *keyring,
00996 const DBusString *username)
00997 {
00998 return _dbus_string_equal (&keyring->username,
00999 username);
01000 }
01001
01013 dbus_bool_t
01014 _dbus_keyring_get_hex_key (DBusKeyring *keyring,
01015 int key_id,
01016 DBusString *hex_key)
01017 {
01018 DBusKey *key;
01019
01020 key = find_key_by_id (keyring->keys,
01021 keyring->n_keys,
01022 key_id);
01023 if (key == NULL)
01024 return TRUE;
01025
01026 return _dbus_string_hex_encode (&key->secret, 0,
01027 hex_key,
01028 _dbus_string_get_length (hex_key));
01029 }
01030
01032
01033 #ifdef DBUS_BUILD_TESTS
01034 #include "dbus-test.h"
01035 #include <stdio.h>
01036
01037 dbus_bool_t
01038 _dbus_keyring_test (void)
01039 {
01040 DBusString context;
01041 DBusKeyring *ring1;
01042 DBusKeyring *ring2;
01043 int id;
01044 DBusError error;
01045 int i;
01046
01047 ring1 = NULL;
01048 ring2 = NULL;
01049
01050
01051
01052 _dbus_string_init_const (&context, "foo");
01053 _dbus_assert (_dbus_keyring_validate_context (&context));
01054 _dbus_string_init_const (&context, "org_freedesktop_blah");
01055 _dbus_assert (_dbus_keyring_validate_context (&context));
01056
01057 _dbus_string_init_const (&context, "");
01058 _dbus_assert (!_dbus_keyring_validate_context (&context));
01059 _dbus_string_init_const (&context, ".foo");
01060 _dbus_assert (!_dbus_keyring_validate_context (&context));
01061 _dbus_string_init_const (&context, "bar.foo");
01062 _dbus_assert (!_dbus_keyring_validate_context (&context));
01063 _dbus_string_init_const (&context, "bar/foo");
01064 _dbus_assert (!_dbus_keyring_validate_context (&context));
01065 _dbus_string_init_const (&context, "bar\\foo");
01066 _dbus_assert (!_dbus_keyring_validate_context (&context));
01067 _dbus_string_init_const (&context, "foo\xfa\xf0");
01068 _dbus_assert (!_dbus_keyring_validate_context (&context));
01069 _dbus_string_init_const (&context, "foo\x80");
01070 _dbus_assert (!_dbus_keyring_validate_context (&context));
01071 _dbus_string_init_const (&context, "foo\x7f");
01072 _dbus_assert (_dbus_keyring_validate_context (&context));
01073 _dbus_string_init_const (&context, "foo bar");
01074 _dbus_assert (!_dbus_keyring_validate_context (&context));
01075
01076 if (!_dbus_string_init (&context))
01077 _dbus_assert_not_reached ("no memory");
01078 if (!_dbus_string_append_byte (&context, '\0'))
01079 _dbus_assert_not_reached ("no memory");
01080 _dbus_assert (!_dbus_keyring_validate_context (&context));
01081 _dbus_string_free (&context);
01082
01083
01084
01085
01086
01087 _dbus_string_init_const (&context, "org_freedesktop_dbus_testsuite");
01088 dbus_error_init (&error);
01089 ring1 = _dbus_keyring_new_homedir (NULL, &context,
01090 &error);
01091 _dbus_assert (ring1);
01092 _dbus_assert (error.name == NULL);
01093
01094 id = _dbus_keyring_get_best_key (ring1, &error);
01095 if (id < 0)
01096 {
01097 fprintf (stderr, "Could not load keyring: %s\n", error.message);
01098 dbus_error_free (&error);
01099 goto failure;
01100 }
01101
01102 ring2 = _dbus_keyring_new_homedir (NULL, &context, &error);
01103 _dbus_assert (ring2);
01104 _dbus_assert (error.name == NULL);
01105
01106 if (ring1->n_keys != ring2->n_keys)
01107 {
01108 fprintf (stderr, "Different number of keys in keyrings\n");
01109 goto failure;
01110 }
01111
01112
01113
01114
01115 i = 0;
01116 while (i < ring1->n_keys)
01117 {
01118 if (ring1->keys[i].id != ring2->keys[i].id)
01119 {
01120 fprintf (stderr, "Keyring 1 has first key ID %d and keyring 2 has %d\n",
01121 ring1->keys[i].id, ring2->keys[i].id);
01122 goto failure;
01123 }
01124
01125 if (ring1->keys[i].creation_time != ring2->keys[i].creation_time)
01126 {
01127 fprintf (stderr, "Keyring 1 has first key time %ld and keyring 2 has %ld\n",
01128 ring1->keys[i].creation_time, ring2->keys[i].creation_time);
01129 goto failure;
01130 }
01131
01132 if (!_dbus_string_equal (&ring1->keys[i].secret,
01133 &ring2->keys[i].secret))
01134 {
01135 fprintf (stderr, "Keyrings 1 and 2 have different secrets for same ID/timestamp\n");
01136 goto failure;
01137 }
01138
01139 ++i;
01140 }
01141
01142 printf (" %d keys in test\n", ring1->n_keys);
01143
01144
01145 _dbus_keyring_ref (ring1);
01146 _dbus_keyring_ref (ring2);
01147 _dbus_keyring_unref (ring1);
01148 _dbus_keyring_unref (ring2);
01149
01150
01151
01152 _dbus_keyring_unref (ring1);
01153 _dbus_keyring_unref (ring2);
01154
01155 return TRUE;
01156
01157 failure:
01158 if (ring1)
01159 _dbus_keyring_unref (ring1);
01160 if (ring2)
01161 _dbus_keyring_unref (ring2);
01162
01163 return FALSE;
01164 }
01165
01166 #endif
01167