-/* -*- mode: C; c-file-style: "gnu" -*- */
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-keyring.c Store secret cookies in your homedir
*
- * Copyright (C) 2003 Red Hat Inc.
+ * Copyright (C) 2003, 2004 Red Hat Inc.
*
- * Licensed under the Academic Free License version 2.0
+ * 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
*
* 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
+#include <config.h>
#include "dbus-keyring.h"
-#include "dbus-userdb.h"
+#include "dbus-protocol.h"
#include <dbus/dbus-string.h>
#include <dbus/dbus-list.h>
#include <dbus/dbus-sysdeps.h>
* Maximum number of keys in the keyring before
* we just ignore the rest
*/
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
#define MAX_KEYS_IN_FILE 10
#else
#define MAX_KEYS_IN_FILE 256
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 */
+ DBusCredentials *credentials; /**< Credentials containing user the keyring is for */
};
static DBusKeyring*
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;
return keyring;
- out_4:
- _dbus_string_free (&keyring->filename_lock);
out_3:
_dbus_string_free (&keyring->filename);
out_2:
n_timeouts = 0;
while (n_timeouts < MAX_LOCK_TIMEOUTS)
{
- DBusError error;
+ DBusError error = DBUS_ERROR_INIT;
- dbus_error_init (&error);
if (_dbus_create_file_exclusively (&keyring->filename_lock,
&error))
break;
if (n_timeouts == MAX_LOCK_TIMEOUTS)
{
- DBusError error;
-
+ DBusError error = DBUS_ERROR_INIT;
+
_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",
static void
_dbus_keyring_unlock (DBusKeyring *keyring)
{
- DBusError error;
- dbus_error_init (&error);
+ DBusError error = DBUS_ERROR_INIT;
+
if (!_dbus_delete_file (&keyring->filename_lock, &error))
{
_dbus_warn ("Failed to delete lock file: %s\n",
DBusKey *new;
DBusString bytes;
int id;
- unsigned long timestamp;
+ long timestamp;
const unsigned char *s;
dbus_bool_t retval;
DBusKey *keys;
goto out;
}
- _dbus_get_current_time (×tamp, NULL);
+ _dbus_get_real_time (×tamp, NULL);
keys[n_keys-1].id = id;
keys[n_keys-1].creation_time = timestamp;
_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);
_dbus_string_free (&contents);
return FALSE;
}
-
+
keys = NULL;
n_keys = 0;
retval = FALSE;
have_lock = FALSE;
- _dbus_get_current_time (&now, NULL);
+ _dbus_get_real_time (&now, NULL);
if (add_new)
{
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))
+ if (n_keys >= (add_new ? MAX_KEYS_IN_FILE - 1 : MAX_KEYS_IN_FILE))
break;
next = 0;
continue;
}
- if (val > _DBUS_INT_MAX || val < 0)
+ if (val > _DBUS_INT32_MAX || val < 0)
{
_dbus_verbose ("invalid secret key ID at start of line\n");
continue;
keys[n_keys-1].id = id;
keys[n_keys-1].creation_time = timestamp;
- if (!_dbus_string_hex_decode (&line, next,
- &keys[n_keys-1].secret,
- 0))
- {
- dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
- goto out;
- }
+ 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",
if (!add_new_key (&keys, &n_keys, error))
{
_dbus_verbose ("Failed to generate new key: %s\n",
- error ? "(unknown)" : error->message);
+ error ? error->message : "(unknown)");
goto out;
}
}
if (!_dbus_string_save_to_file (&contents, &keyring->filename,
- error))
+ FALSE, error))
goto out;
}
if (keyring->refcount == 0)
{
- _dbus_string_free (&keyring->username);
+ if (keyring->credentials)
+ _dbus_credentials_unref (keyring->credentials);
+
_dbus_string_free (&keyring->filename);
_dbus_string_free (&keyring->filename_lock);
_dbus_string_free (&keyring->directory);
}
/**
- * 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.
+ * Creates a new keyring that lives in the ~/.dbus-keyrings directory
+ * of the user represented by @p credentials. If the @p credentials are
+ * #NULL or empty, uses those of the current process.
*
- * @param username username to get keyring for, or #NULL
+ * @param credentials a set of credentials representing a user 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)
+_dbus_keyring_new_for_credentials (DBusCredentials *credentials,
+ const DBusString *context,
+ DBusError *error)
{
- DBusString homedir;
+ DBusString ringdir;
DBusKeyring *keyring;
dbus_bool_t error_set;
- DBusString dotdir;
DBusError tmp_error;
-
+ DBusCredentials *our_credentials;
+
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (_dbus_check_setuid ())
+ {
+ dbus_set_error_const (error, DBUS_ERROR_NOT_SUPPORTED,
+ "Unable to create DBus keyring when setuid");
+ return NULL;
+ }
keyring = NULL;
error_set = FALSE;
+ our_credentials = NULL;
- if (!_dbus_string_init (&homedir))
+ if (!_dbus_string_init (&ringdir))
{
dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
- return FALSE;
+ return NULL;
}
- _dbus_string_init_const (&dotdir, ".dbus-keyrings");
-
- if (username == NULL)
+ if (credentials != 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;
+ our_credentials = _dbus_credentials_copy (credentials);
}
else
{
- if (!_dbus_homedir_from_username (username, &homedir))
- goto failed;
+ our_credentials = _dbus_credentials_new_from_current_process ();
}
+
+ if (our_credentials == NULL)
+ 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))
- _dbus_assert_not_reached ("no memory");
-
- _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
+ if (_dbus_credentials_are_anonymous (our_credentials))
+ {
+ if (!_dbus_credentials_add_from_current_process (our_credentials))
+ goto failed;
+ }
- _dbus_assert (username != NULL);
+ if (!_dbus_append_keyring_directory_for_credentials (&ringdir,
+ our_credentials))
+ goto failed;
keyring = _dbus_keyring_new ();
if (keyring == NULL)
goto failed;
+ _dbus_assert (keyring->credentials == NULL);
+ keyring->credentials = our_credentials;
+ our_credentials = NULL; /* so we don't unref it again later */
+
/* should have been validated already, but paranoia check here */
if (!_dbus_keyring_validate_context (context))
{
goto failed;
}
- if (!_dbus_string_copy (username, 0,
- &keyring->username, 0))
- goto failed;
-
- if (!_dbus_string_copy (&homedir, 0,
+ /* Save keyring dir in the keyring object */
+ if (!_dbus_string_copy (&ringdir, 0,
&keyring->directory, 0))
- goto failed;
-
- if (!_dbus_concat_dir_and_file (&keyring->directory,
- &dotdir))
- goto failed;
+ goto failed;
+ /* Create keyring->filename based on keyring dir and context */
if (!_dbus_string_copy (&keyring->directory, 0,
&keyring->filename, 0))
goto failed;
context))
goto failed;
+ /* Create lockfile name */
if (!_dbus_string_copy (&keyring->filename, 0,
&keyring->filename_lock, 0))
goto failed;
if (!_dbus_string_append (&keyring->filename_lock, ".lock"))
goto failed;
+ /* Reload keyring */
dbus_error_init (&tmp_error);
if (!_dbus_keyring_reload (keyring, FALSE, &tmp_error))
{
dbus_error_free (&tmp_error);
}
- _dbus_string_free (&homedir);
+ _dbus_string_free (&ringdir);
return keyring;
dbus_set_error_const (error,
DBUS_ERROR_NO_MEMORY,
NULL);
+ if (our_credentials)
+ _dbus_credentials_unref (our_credentials);
if (keyring)
_dbus_keyring_unref (keyring);
- _dbus_string_free (&homedir);
- return FALSE;
+ _dbus_string_free (&ringdir);
+ return NULL;
}
int i;
long tv_sec, tv_usec;
- _dbus_get_current_time (&tv_sec, &tv_usec);
+ _dbus_get_real_time (&tv_sec, &tv_usec);
i = 0;
while (i < keyring->n_keys)
}
/**
- * Checks whether the keyring is for the given username.
+ * Checks whether the keyring is for the same user as the given credentials.
*
* @param keyring the keyring
- * @param username the username to check
+ * @param credentials the credentials 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)
+_dbus_keyring_is_for_credentials (DBusKeyring *keyring,
+ DBusCredentials *credentials)
{
- return _dbus_string_equal (&keyring->username,
- username);
+ return _dbus_credentials_same_user (keyring->credentials,
+ credentials);
}
/**
/** @} */ /* end of exposed API */
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
#include "dbus-test.h"
#include <stdio.h>
_dbus_string_init_const (&context, "org_freedesktop_dbus_testsuite");
dbus_error_init (&error);
- ring1 = _dbus_keyring_new_homedir (NULL, &context,
- &error);
- _dbus_assert (ring1);
+ ring1 = _dbus_keyring_new_for_credentials (NULL, &context,
+ &error);
+ _dbus_assert (ring1 != NULL);
_dbus_assert (error.name == NULL);
id = _dbus_keyring_get_best_key (ring1, &error);
goto failure;
}
- ring2 = _dbus_keyring_new_homedir (NULL, &context, &error);
- _dbus_assert (ring2);
+ ring2 = _dbus_keyring_new_for_credentials (NULL, &context, &error);
+ _dbus_assert (ring2 != NULL);
_dbus_assert (error.name == NULL);
if (ring1->n_keys != ring2->n_keys)
return FALSE;
}
-#endif /* DBUS_BUILD_TESTS */
+#endif /* DBUS_ENABLE_EMBEDDED_TESTS */