/* -*- mode: C; c-file-style: "gnu" -*- */ /* dbus-keyring.c Store secret cookies in your homedir * * Copyright (C) 2003, 2004 Red Hat Inc. * * Licensed under the Academic Free License version 2.1 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include "dbus-keyring.h" #include "dbus-userdb.h" #include "dbus-protocol.h" #include #include #include /** * @defgroup DBusKeyring keyring class * @ingroup DBusInternals * @brief DBusKeyring data structure * * Types and functions related to DBusKeyring. DBusKeyring is intended * to manage cookies used to authenticate clients to servers. This is * essentially the "verify that client can read the user's homedir" * authentication mechanism. Both client and server must have access * to the homedir. * * The secret keys are not kept in locked memory, and are written to a * file in the user's homedir. However they are transient (only used * by a single server instance for a fixed period of time, then * discarded). Also, the keys are not sent over the wire. * * @todo there's a memory leak on some codepath in here, I saw it once * when running make check - probably some specific initial cookies * present in the cookie file, then depending on what we do with them. */ /** * @defgroup DBusKeyringInternals DBusKeyring implementation details * @ingroup DBusInternals * @brief DBusKeyring implementation details * * The guts of DBusKeyring. * * @{ */ /** The maximum age of a key before we create a new key to use in * challenges. This isn't super-reliably enforced, since system * clocks can change or be wrong, but we make a best effort to only * use keys for a short time. */ #define NEW_KEY_TIMEOUT_SECONDS (60*5) /** * The time after which we drop a key from the secrets file. * The EXPIRE_KEYS_TIMEOUT_SECONDS - NEW_KEY_TIMEOUT_SECONDS is the minimum * time window a client has to complete authentication. */ #define EXPIRE_KEYS_TIMEOUT_SECONDS (NEW_KEY_TIMEOUT_SECONDS + (60*2)) /** * The maximum amount of time a key can be in the future. */ #define MAX_TIME_TRAVEL_SECONDS (60*5) /** * Maximum number of keys in the keyring before * we just ignore the rest */ #ifdef DBUS_BUILD_TESTS #define MAX_KEYS_IN_FILE 10 #else #define MAX_KEYS_IN_FILE 256 #endif /** * A single key from the cookie file */ typedef struct { dbus_int32_t id; /**< identifier used to refer to the key */ long creation_time; /**< when the key was generated, * as unix timestamp. signed long * matches struct timeval. */ DBusString secret; /**< the actual key */ } DBusKey; /** * @brief Internals of DBusKeyring. * * DBusKeyring internals. DBusKeyring is an opaque object, it must be * used via accessor functions. */ struct DBusKeyring { int refcount; /**< Reference count */ DBusString username; /**< Username keyring is for */ DBusString directory; /**< Directory the below two items are inside */ DBusString filename; /**< Keyring filename */ DBusString filename_lock; /**< Name of lockfile */ DBusKey *keys; /**< Keys loaded from the file */ int n_keys; /**< Number of keys */ }; static DBusKeyring* _dbus_keyring_new (void) { DBusKeyring *keyring; keyring = dbus_new0 (DBusKeyring, 1); if (keyring == NULL) goto out_0; if (!_dbus_string_init (&keyring->directory)) goto out_1; if (!_dbus_string_init (&keyring->filename)) goto out_2; if (!_dbus_string_init (&keyring->filename_lock)) goto out_3; if (!_dbus_string_init (&keyring->username)) goto out_4; keyring->refcount = 1; keyring->keys = NULL; keyring->n_keys = 0; return keyring; out_4: _dbus_string_free (&keyring->filename_lock); out_3: _dbus_string_free (&keyring->filename); out_2: _dbus_string_free (&keyring->directory); out_1: dbus_free (keyring); out_0: return NULL; } static void free_keys (DBusKey *keys, int n_keys) { int i; /* should be safe for args NULL, 0 */ i = 0; while (i < n_keys) { _dbus_string_free (&keys[i].secret); ++i; } dbus_free (keys); } /* Our locking scheme is highly unreliable. However, there is * unfortunately no reliable locking scheme in user home directories; * between bugs in Linux NFS, people using Tru64 or other total crap * NFS, AFS, random-file-system-of-the-week, and so forth, fcntl() in * homedirs simply generates tons of bug reports. This has been * learned through hard experience with GConf, unfortunately. * * This bad hack might work better for the kind of lock we have here, * which we don't expect to hold for any length of time. Crashing * while we hold it should be unlikely, and timing out such that we * delete a stale lock should also be unlikely except when the * filesystem is running really slowly. Stuff might break in corner * cases but as long as it's not a security-level breakage it should * be OK. */ /** Maximum number of timeouts waiting for lock before we decide it's stale */ #define MAX_LOCK_TIMEOUTS 32 /** Length of each timeout while waiting for a lock */ #define LOCK_TIMEOUT_MILLISECONDS 250 static dbus_bool_t _dbus_keyring_lock (DBusKeyring *keyring) { int n_timeouts; n_timeouts = 0; while (n_timeouts < MAX_LOCK_TIMEOUTS) { DBusError error; dbus_error_init (&error); if (_dbus_create_file_exclusively (&keyring->filename_lock, &error)) break; _dbus_verbose ("Did not get lock file, sleeping %d milliseconds (%s)\n", LOCK_TIMEOUT_MILLISECONDS, error.message); dbus_error_free (&error); _dbus_sleep_milliseconds (LOCK_TIMEOUT_MILLISECONDS); ++n_timeouts; } if (n_timeouts == MAX_LOCK_TIMEOUTS) { DBusError error; _dbus_verbose ("Lock file timed out %d times, assuming stale\n", n_timeouts); dbus_error_init (&error); if (!_dbus_delete_file (&keyring->filename_lock, &error)) { _dbus_verbose ("Couldn't delete old lock file: %s\n", error.message); dbus_error_free (&error); return FALSE; } if (!_dbus_create_file_exclusively (&keyring->filename_lock, &error)) { _dbus_verbose ("Couldn't create lock file after deleting stale one: %s\n", error.message); dbus_error_free (&error); return FALSE; } } return TRUE; } static void _dbus_keyring_unlock (DBusKeyring *keyring) { DBusError error; dbus_error_init (&error); if (!_dbus_delete_file (&keyring->filename_lock, &error)) { _dbus_warn ("Failed to delete lock file: %s\n", error.message); dbus_error_free (&error); } } static DBusKey* find_key_by_id (DBusKey *keys, int n_keys, int id) { int i; i = 0; while (i < n_keys) { if (keys[i].id == id) return &keys[i]; ++i; } return NULL; } static dbus_bool_t add_new_key (DBusKey **keys_p, int *n_keys_p, DBusError *error) { DBusKey *new; DBusString bytes; int id; long timestamp; const unsigned char *s; dbus_bool_t retval; DBusKey *keys; int n_keys; _DBUS_ASSERT_ERROR_IS_CLEAR (error); if (!_dbus_string_init (&bytes)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); return FALSE; } keys = *keys_p; n_keys = *n_keys_p; retval = FALSE; /* Generate an integer ID and then the actual key. */ retry: if (!_dbus_generate_random_bytes (&bytes, 4)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } s = (const unsigned char*) _dbus_string_get_const_data (&bytes); id = s[0] | (s[1] << 8) | (s[2] << 16) | (s[3] << 24); if (id < 0) id = - id; _dbus_assert (id >= 0); if (find_key_by_id (keys, n_keys, id) != NULL) { _dbus_string_set_length (&bytes, 0); _dbus_verbose ("Key ID %d already existed, trying another one\n", id); goto retry; } _dbus_verbose ("Creating key with ID %d\n", id); #define KEY_LENGTH_BYTES 24 _dbus_string_set_length (&bytes, 0); if (!_dbus_generate_random_bytes (&bytes, KEY_LENGTH_BYTES)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } new = dbus_realloc (keys, sizeof (DBusKey) * (n_keys + 1)); if (new == NULL) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } keys = new; *keys_p = keys; /* otherwise *keys_p ends up invalid */ n_keys += 1; if (!_dbus_string_init (&keys[n_keys-1].secret)) { n_keys -= 1; /* we don't want to free the one we didn't init */ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } _dbus_get_current_time (×tamp, NULL); keys[n_keys-1].id = id; keys[n_keys-1].creation_time = timestamp; if (!_dbus_string_move (&bytes, 0, &keys[n_keys-1].secret, 0)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); _dbus_string_free (&keys[n_keys-1].secret); n_keys -= 1; goto out; } retval = TRUE; out: *n_keys_p = n_keys; _dbus_string_free (&bytes); return retval; } /** * Reloads the keyring file, optionally adds one new key to the file, * removes all expired keys from the file iff a key was added, then * resaves the file. Stores the keys from the file in keyring->keys. * Note that the file is only resaved (written to) if a key is added, * this means that only servers ever write to the file and need to * lock it, which avoids a lot of lock contention at login time and * such. * * @param keyring the keyring * @param add_new #TRUE to add a new key to the file, expire keys, and resave * @param error return location for errors * @returns #FALSE on failure */ static dbus_bool_t _dbus_keyring_reload (DBusKeyring *keyring, dbus_bool_t add_new, DBusError *error) { DBusString contents; DBusString line; dbus_bool_t retval; dbus_bool_t have_lock; DBusKey *keys; int n_keys; int i; long now; DBusError tmp_error; _DBUS_ASSERT_ERROR_IS_CLEAR (error); if (!_dbus_check_dir_is_private_to_user (&keyring->directory, error)) return FALSE; if (!_dbus_string_init (&contents)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); return FALSE; } if (!_dbus_string_init (&line)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); _dbus_string_free (&contents); return FALSE; } keys = NULL; n_keys = 0; retval = FALSE; have_lock = FALSE; _dbus_get_current_time (&now, NULL); if (add_new) { if (!_dbus_keyring_lock (keyring)) { dbus_set_error (error, DBUS_ERROR_FAILED, "Could not lock keyring file to add to it"); goto out; } have_lock = TRUE; } dbus_error_init (&tmp_error); if (!_dbus_file_get_contents (&contents, &keyring->filename, &tmp_error)) { _dbus_verbose ("Failed to load keyring file: %s\n", tmp_error.message); /* continue with empty keyring file, so we recreate it */ dbus_error_free (&tmp_error); } if (!_dbus_string_validate_ascii (&contents, 0, _dbus_string_get_length (&contents))) { _dbus_warn ("Secret keyring file contains non-ASCII! Ignoring existing contents\n"); _dbus_string_set_length (&contents, 0); } /* FIXME this is badly inefficient for large keyring files * (not that large keyring files exist outside of test suites) */ while (_dbus_string_pop_line (&contents, &line)) { int next; long val; int id; long timestamp; int len; int end; DBusKey *new; /* Don't load more than the max. */ if (n_keys >= (add_new ? MAX_KEYS_IN_FILE : MAX_KEYS_IN_FILE - 1)) break; next = 0; if (!_dbus_string_parse_int (&line, 0, &val, &next)) { _dbus_verbose ("could not parse secret key ID at start of line\n"); continue; } if (val > _DBUS_INT32_MAX || val < 0) { _dbus_verbose ("invalid secret key ID at start of line\n"); continue; } id = val; _dbus_string_skip_blank (&line, next, &next); if (!_dbus_string_parse_int (&line, next, ×tamp, &next)) { _dbus_verbose ("could not parse secret key timestamp\n"); continue; } if (timestamp < 0 || (now + MAX_TIME_TRAVEL_SECONDS) < timestamp || (now - EXPIRE_KEYS_TIMEOUT_SECONDS) > timestamp) { _dbus_verbose ("dropping/ignoring %ld-seconds old key with timestamp %ld as current time is %ld\n", now - timestamp, timestamp, now); continue; } _dbus_string_skip_blank (&line, next, &next); len = _dbus_string_get_length (&line); if ((len - next) == 0) { _dbus_verbose ("no secret key after ID and timestamp\n"); continue; } /* We have all three parts */ new = dbus_realloc (keys, sizeof (DBusKey) * (n_keys + 1)); if (new == NULL) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } keys = new; n_keys += 1; if (!_dbus_string_init (&keys[n_keys-1].secret)) { n_keys -= 1; /* we don't want to free the one we didn't init */ dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } keys[n_keys-1].id = id; keys[n_keys-1].creation_time = timestamp; if (!_dbus_string_hex_decode (&line, next, &end, &keys[n_keys-1].secret, 0)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } if (_dbus_string_get_length (&line) != end) { _dbus_verbose ("invalid hex encoding in keyring file\n"); _dbus_string_free (&keys[n_keys - 1].secret); n_keys -= 1; continue; } } _dbus_verbose ("Successfully loaded %d existing keys\n", n_keys); if (add_new) { if (!add_new_key (&keys, &n_keys, error)) { _dbus_verbose ("Failed to generate new key: %s\n", error ? "(unknown)" : error->message); goto out; } _dbus_string_set_length (&contents, 0); i = 0; while (i < n_keys) { if (!_dbus_string_append_int (&contents, keys[i].id)) goto nomem; if (!_dbus_string_append_byte (&contents, ' ')) goto nomem; if (!_dbus_string_append_int (&contents, keys[i].creation_time)) goto nomem; if (!_dbus_string_append_byte (&contents, ' ')) goto nomem; if (!_dbus_string_hex_encode (&keys[i].secret, 0, &contents, _dbus_string_get_length (&contents))) goto nomem; if (!_dbus_string_append_byte (&contents, '\n')) goto nomem; ++i; continue; nomem: dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); goto out; } if (!_dbus_string_save_to_file (&contents, &keyring->filename, error)) goto out; } if (keyring->keys) free_keys (keyring->keys, keyring->n_keys); keyring->keys = keys; keyring->n_keys = n_keys; keys = NULL; n_keys = 0; retval = TRUE; out: if (have_lock) _dbus_keyring_unlock (keyring); if (! ((retval == TRUE && (error == NULL || error->name == NULL)) || (retval == FALSE && (error == NULL || error->name != NULL)))) { if (error && error->name) _dbus_verbose ("error is %s: %s\n", error->name, error->message); _dbus_warn ("returning %d but error pointer %p name %s\n", retval, error, error->name ? error->name : "(none)"); _dbus_assert_not_reached ("didn't handle errors properly"); } if (keys != NULL) { i = 0; while (i < n_keys) { _dbus_string_zero (&keys[i].secret); _dbus_string_free (&keys[i].secret); ++i; } dbus_free (keys); } _dbus_string_free (&contents); _dbus_string_free (&line); return retval; } /** @} */ /* end of internals */ /** * @addtogroup DBusKeyring * * @{ */ /** * Increments reference count of the keyring * * @param keyring the keyring * @returns the keyring */ DBusKeyring * _dbus_keyring_ref (DBusKeyring *keyring) { keyring->refcount += 1; return keyring; } /** * Decrements refcount and finalizes if it reaches * zero. * * @param keyring the keyring */ void _dbus_keyring_unref (DBusKeyring *keyring) { keyring->refcount -= 1; if (keyring->refcount == 0) { _dbus_string_free (&keyring->username); _dbus_string_free (&keyring->filename); _dbus_string_free (&keyring->filename_lock); _dbus_string_free (&keyring->directory); free_keys (keyring->keys, keyring->n_keys); dbus_free (keyring); } } /** * Creates a new keyring that lives in the ~/.dbus-keyrings * directory of the given user. If the username is #NULL, * uses the user owning the current process. * * @param username username to get keyring for, or #NULL * @param context which keyring to get * @param error return location for errors * @returns the keyring or #NULL on error */ DBusKeyring* _dbus_keyring_new_homedir (const DBusString *username, const DBusString *context, DBusError *error) { DBusString homedir; DBusKeyring *keyring; dbus_bool_t error_set; DBusString dotdir; DBusError tmp_error; _DBUS_ASSERT_ERROR_IS_CLEAR (error); keyring = NULL; error_set = FALSE; if (!_dbus_string_init (&homedir)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); return FALSE; } _dbus_string_init_const (&dotdir, ".dbus-keyrings"); if (username == NULL) { const DBusString *const_homedir; if (!_dbus_username_from_current_process (&username) || !_dbus_homedir_from_current_process (&const_homedir)) goto failed; if (!_dbus_string_copy (const_homedir, 0, &homedir, 0)) goto failed; } else { if (!_dbus_homedir_from_username (username, &homedir)) goto failed; } #ifdef DBUS_BUILD_TESTS { const char *override; override = _dbus_getenv ("DBUS_TEST_HOMEDIR"); if (override != NULL && *override != '\0') { _dbus_string_set_length (&homedir, 0); if (!_dbus_string_append (&homedir, override)) goto failed; _dbus_verbose ("Using fake homedir for testing: %s\n", _dbus_string_get_const_data (&homedir)); } else { static dbus_bool_t already_warned = FALSE; if (!already_warned) { _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n"); already_warned = TRUE; } } } #endif _dbus_assert (username != NULL); keyring = _dbus_keyring_new (); if (keyring == NULL) goto failed; /* should have been validated already, but paranoia check here */ if (!_dbus_keyring_validate_context (context)) { error_set = TRUE; dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid context in keyring creation"); goto failed; } if (!_dbus_string_copy (username, 0, &keyring->username, 0)) goto failed; if (!_dbus_string_copy (&homedir, 0, &keyring->directory, 0)) goto failed; if (!_dbus_concat_dir_and_file (&keyring->directory, &dotdir)) goto failed; if (!_dbus_string_copy (&keyring->directory, 0, &keyring->filename, 0)) goto failed; if (!_dbus_concat_dir_and_file (&keyring->filename, context)) goto failed; if (!_dbus_string_copy (&keyring->filename, 0, &keyring->filename_lock, 0)) goto failed; if (!_dbus_string_append (&keyring->filename_lock, ".lock")) goto failed; dbus_error_init (&tmp_error); if (!_dbus_keyring_reload (keyring, FALSE, &tmp_error)) { _dbus_verbose ("didn't load an existing keyring: %s\n", tmp_error.message); dbus_error_free (&tmp_error); } /* We don't fail fatally if we can't create the directory, * but the keyring will probably always be empty * unless someone else manages to create it */ dbus_error_init (&tmp_error); if (!_dbus_create_directory (&keyring->directory, &tmp_error)) { _dbus_verbose ("Creating keyring directory: %s\n", tmp_error.message); dbus_error_free (&tmp_error); } _dbus_string_free (&homedir); return keyring; failed: if (!error_set) dbus_set_error_const (error, DBUS_ERROR_NO_MEMORY, NULL); if (keyring) _dbus_keyring_unref (keyring); _dbus_string_free (&homedir); return FALSE; } /** * Checks whether the context is a valid context. * Contexts that might cause confusion when used * in filenames are not allowed (contexts can't * start with a dot or contain dir separators). * * @todo this is the most inefficient implementation * imaginable. * * @param context the context * @returns #TRUE if valid */ dbus_bool_t _dbus_keyring_validate_context (const DBusString *context) { if (_dbus_string_get_length (context) == 0) { _dbus_verbose ("context is zero-length\n"); return FALSE; } if (!_dbus_string_validate_ascii (context, 0, _dbus_string_get_length (context))) { _dbus_verbose ("context not valid ascii\n"); return FALSE; } /* no directory separators */ if (_dbus_string_find (context, 0, "/", NULL)) { _dbus_verbose ("context contains a slash\n"); return FALSE; } if (_dbus_string_find (context, 0, "\\", NULL)) { _dbus_verbose ("context contains a backslash\n"); return FALSE; } /* prevent attempts to use dotfiles or ".." or ".lock" * all of which might allow some kind of attack */ if (_dbus_string_find (context, 0, ".", NULL)) { _dbus_verbose ("context contains a dot\n"); return FALSE; } /* no spaces/tabs, those are used for separators in the protocol */ if (_dbus_string_find_blank (context, 0, NULL)) { _dbus_verbose ("context contains a blank\n"); return FALSE; } if (_dbus_string_find (context, 0, "\n", NULL)) { _dbus_verbose ("context contains a newline\n"); return FALSE; } if (_dbus_string_find (context, 0, "\r", NULL)) { _dbus_verbose ("context contains a carriage return\n"); return FALSE; } return TRUE; } static DBusKey* find_recent_key (DBusKeyring *keyring) { int i; long tv_sec, tv_usec; _dbus_get_current_time (&tv_sec, &tv_usec); i = 0; while (i < keyring->n_keys) { DBusKey *key = &keyring->keys[i]; _dbus_verbose ("Key %d is %ld seconds old\n", i, tv_sec - key->creation_time); if ((tv_sec - NEW_KEY_TIMEOUT_SECONDS) < key->creation_time) return key; ++i; } return NULL; } /** * Gets a recent key to use for authentication. * If no recent key exists, creates one. Returns * the key ID. If a key can't be written to the keyring * file so no recent key can be created, returns -1. * All valid keys are > 0. * * @param keyring the keyring * @param error error on failure * @returns key ID to use for auth, or -1 on failure */ int _dbus_keyring_get_best_key (DBusKeyring *keyring, DBusError *error) { DBusKey *key; _DBUS_ASSERT_ERROR_IS_CLEAR (error); key = find_recent_key (keyring); if (key) return key->id; /* All our keys are too old, or we've never loaded the * keyring. Create a new one. */ if (!_dbus_keyring_reload (keyring, TRUE, error)) return -1; key = find_recent_key (keyring); if (key) return key->id; else { dbus_set_error_const (error, DBUS_ERROR_FAILED, "No recent-enough key found in keyring, and unable to create a new key"); return -1; } } /** * Checks whether the keyring is for the given username. * * @param keyring the keyring * @param username the username to check * * @returns #TRUE if the keyring belongs to the given user */ dbus_bool_t _dbus_keyring_is_for_user (DBusKeyring *keyring, const DBusString *username) { return _dbus_string_equal (&keyring->username, username); } /** * Gets the hex-encoded secret key for the given ID. * Returns #FALSE if not enough memory. Returns #TRUE * but empty key on any other error such as unknown * key ID. * * @param keyring the keyring * @param key_id the key ID * @param hex_key string to append hex-encoded key to * @returns #TRUE if we had enough memory */ dbus_bool_t _dbus_keyring_get_hex_key (DBusKeyring *keyring, int key_id, DBusString *hex_key) { DBusKey *key; key = find_key_by_id (keyring->keys, keyring->n_keys, key_id); if (key == NULL) return TRUE; /* had enough memory, so TRUE */ return _dbus_string_hex_encode (&key->secret, 0, hex_key, _dbus_string_get_length (hex_key)); } /** @} */ /* end of exposed API */ #ifdef DBUS_BUILD_TESTS #include "dbus-test.h" #include dbus_bool_t _dbus_keyring_test (void) { DBusString context; DBusKeyring *ring1; DBusKeyring *ring2; int id; DBusError error; int i; ring1 = NULL; ring2 = NULL; /* Context validation */ _dbus_string_init_const (&context, "foo"); _dbus_assert (_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "org_freedesktop_blah"); _dbus_assert (_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, ""); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, ".foo"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "bar.foo"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "bar/foo"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "bar\\foo"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "foo\xfa\xf0"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "foo\x80"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "foo\x7f"); _dbus_assert (_dbus_keyring_validate_context (&context)); _dbus_string_init_const (&context, "foo bar"); _dbus_assert (!_dbus_keyring_validate_context (&context)); if (!_dbus_string_init (&context)) _dbus_assert_not_reached ("no memory"); if (!_dbus_string_append_byte (&context, '\0')) _dbus_assert_not_reached ("no memory"); _dbus_assert (!_dbus_keyring_validate_context (&context)); _dbus_string_free (&context); /* Now verify that if we create a key in keyring 1, * it is properly loaded in keyring 2 */ _dbus_string_init_const (&context, "org_freedesktop_dbus_testsuite"); dbus_error_init (&error); ring1 = _dbus_keyring_new_homedir (NULL, &context, &error); _dbus_assert (ring1); _dbus_assert (error.name == NULL); id = _dbus_keyring_get_best_key (ring1, &error); if (id < 0) { fprintf (stderr, "Could not load keyring: %s\n", error.message); dbus_error_free (&error); goto failure; } ring2 = _dbus_keyring_new_homedir (NULL, &context, &error); _dbus_assert (ring2); _dbus_assert (error.name == NULL); if (ring1->n_keys != ring2->n_keys) { fprintf (stderr, "Different number of keys in keyrings\n"); goto failure; } /* We guarantee we load and save keeping keys in a fixed * order */ i = 0; while (i < ring1->n_keys) { if (ring1->keys[i].id != ring2->keys[i].id) { fprintf (stderr, "Keyring 1 has first key ID %d and keyring 2 has %d\n", ring1->keys[i].id, ring2->keys[i].id); goto failure; } if (ring1->keys[i].creation_time != ring2->keys[i].creation_time) { fprintf (stderr, "Keyring 1 has first key time %ld and keyring 2 has %ld\n", ring1->keys[i].creation_time, ring2->keys[i].creation_time); goto failure; } if (!_dbus_string_equal (&ring1->keys[i].secret, &ring2->keys[i].secret)) { fprintf (stderr, "Keyrings 1 and 2 have different secrets for same ID/timestamp\n"); goto failure; } ++i; } printf (" %d keys in test\n", ring1->n_keys); /* Test ref/unref */ _dbus_keyring_ref (ring1); _dbus_keyring_ref (ring2); _dbus_keyring_unref (ring1); _dbus_keyring_unref (ring2); /* really unref */ _dbus_keyring_unref (ring1); _dbus_keyring_unref (ring2); return TRUE; failure: if (ring1) _dbus_keyring_unref (ring1); if (ring2) _dbus_keyring_unref (ring2); return FALSE; } #endif /* DBUS_BUILD_TESTS */