25 #include "dbus-auth.h" 26 #include "dbus-string.h" 27 #include "dbus-list.h" 28 #include "dbus-internals.h" 29 #include "dbus-keyring.h" 31 #include "dbus-protocol.h" 32 #include "dbus-credentials.h" 120 DBUS_AUTH_COMMAND_AUTH,
121 DBUS_AUTH_COMMAND_CANCEL,
122 DBUS_AUTH_COMMAND_DATA,
123 DBUS_AUTH_COMMAND_BEGIN,
124 DBUS_AUTH_COMMAND_REJECTED,
125 DBUS_AUTH_COMMAND_OK,
126 DBUS_AUTH_COMMAND_ERROR,
127 DBUS_AUTH_COMMAND_UNKNOWN,
128 DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD,
129 DBUS_AUTH_COMMAND_AGREE_UNIX_FD
223 static void goto_state (
DBusAuth *auth,
231 const char *message);
253 "WaitingForAuth", handle_server_state_waiting_for_auth
256 "WaitingForData", handle_server_state_waiting_for_data
259 "WaitingForBegin", handle_server_state_waiting_for_begin
283 "WaitingForData", handle_client_state_waiting_for_data
289 "WaitingForOK", handle_client_state_waiting_for_ok
292 "WaitingForReject", handle_client_state_waiting_for_reject
295 "WaitingForAgreeUnixFD", handle_client_state_waiting_for_agree_unix_fd
303 "Authenticated",
NULL 307 "NeedDisconnect",
NULL 310 static const char auth_side_client[] =
"client";
311 static const char auth_side_server[] =
"server";
316 #define DBUS_AUTH_IS_SERVER(auth) ((auth)->side == auth_side_server) 321 #define DBUS_AUTH_IS_CLIENT(auth) ((auth)->side == auth_side_client) 326 #define DBUS_AUTH_CLIENT(auth) ((DBusAuthClient*)(auth)) 331 #define DBUS_AUTH_SERVER(auth) ((DBusAuthServer*)(auth)) 338 #define DBUS_AUTH_NAME(auth) ((auth)->side) 341 _dbus_auth_new (
int size)
432 _dbus_verbose (
"%s: Shutting down mechanism %s\n",
474 if (_dbus_string_get_length (&cookie) == 0)
484 &to_hash, _dbus_string_get_length (&to_hash)))
491 &to_hash, _dbus_string_get_length (&to_hash)))
498 &to_hash, _dbus_string_get_length (&to_hash)))
519 #define N_CHALLENGE_BYTES (128/8) 522 sha1_handle_first_client_response (
DBusAuth *auth,
536 if (_dbus_string_get_length (data) > 0)
538 if (_dbus_string_get_length (&auth->
identity) > 0)
541 _dbus_verbose (
"%s: client tried to send auth identity, but we already have one\n",
543 return send_rejected (auth);
554 DBUS_CREDENTIALS_ADD_FLAGS_USER_DATABASE,
563 _dbus_verbose (
"%s: Did not get a valid username from client: %s\n",
566 return send_rejected (auth);
598 _dbus_verbose (
"%s: client tried to authenticate as \"%s\", " 599 "but that doesn't match this process",
601 _dbus_string_get_const_data (data));
602 retval = send_rejected (auth);
634 _DBUS_ASSERT_ERROR_IS_SET (&error);
635 _dbus_verbose (
"%s: Error loading keyring: %s\n",
637 if (send_rejected (auth))
654 _DBUS_ASSERT_ERROR_IS_SET (&error);
655 _dbus_verbose (
"%s: Could not get a cookie ID to send to client: %s\n",
657 if (send_rejected (auth))
668 &tmp2, _dbus_string_get_length (&tmp2)))
689 _DBUS_ASSERT_ERROR_IS_SET (&error);
690 _dbus_verbose (
"%s: Error generating challenge: %s\n",
692 if (send_rejected (auth))
705 _dbus_string_get_length (&tmp2)))
708 if (!send_data (auth, &tmp2))
711 goto_state (auth, &server_state_waiting_for_data);
719 _dbus_clear_credentials (&myself);
725 sha1_handle_second_client_response (
DBusAuth *auth,
743 _dbus_verbose (
"%s: no space separator in client response\n",
745 return send_rejected (auth);
761 _dbus_string_get_length (data) - i,
766 if (_dbus_string_get_length (&client_challenge) == 0 ||
767 _dbus_string_get_length (&client_hash) == 0)
769 _dbus_verbose (
"%s: zero-length client challenge or hash\n",
771 if (send_rejected (auth))
779 if (!sha1_compute_hash (auth, auth->
cookie_id,
786 if (_dbus_string_get_length (&correct_hash) == 0)
788 if (send_rejected (auth))
795 if (send_rejected (auth))
807 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
814 _dbus_verbose (
"%s: authenticated client using DBUS_COOKIE_SHA1\n",
832 handle_server_data_cookie_sha1_mech (
DBusAuth *auth,
836 return sha1_handle_first_client_response (auth, data);
838 return sha1_handle_second_client_response (auth, data);
842 handle_server_shutdown_cookie_sha1_mech (
DBusAuth *auth)
849 handle_client_initial_response_cookie_sha1_mech (
DBusAuth *auth,
865 _dbus_string_get_length (response)))
877 handle_client_data_cookie_sha1_mech (
DBusAuth *auth,
897 if (send_error (auth,
898 "Server did not send context/ID/challenge properly"))
913 if (send_error (auth,
914 "Server did not send context/ID/challenge properly"))
931 j = _dbus_string_get_length (data);
934 &server_challenge, 0))
939 if (send_error (auth,
"Server sent invalid cookie context"))
946 if (send_error (auth,
"Could not parse cookie ID as an integer"))
951 if (_dbus_string_get_length (&server_challenge) == 0)
953 if (send_error (auth,
"Empty server challenge string"))
974 _DBUS_ASSERT_ERROR_IS_SET (&error);
976 _dbus_verbose (
"%s: Error loading keyring: %s\n",
979 if (send_error (auth,
"Could not load cookie file"))
1006 _DBUS_ASSERT_ERROR_IS_SET (&error);
1008 _dbus_verbose (
"%s: Failed to generate challenge: %s\n",
1011 if (send_error (auth,
"Failed to generate challenge"))
1028 if (!sha1_compute_hash (auth, val,
1034 if (_dbus_string_get_length (&correct_hash) == 0)
1037 if (send_error (auth,
"Don't have the requested cookie ID"))
1045 _dbus_string_get_length (&tmp)))
1052 _dbus_string_get_length (&tmp)))
1055 if (!send_data (auth, &tmp))
1079 handle_client_shutdown_cookie_sha1_mech (
DBusAuth *auth)
1090 handle_server_data_external_mech (
DBusAuth *auth,
1095 _dbus_verbose (
"%s: no credentials, mechanism EXTERNAL can't authenticate\n",
1097 return send_rejected (auth);
1100 if (_dbus_string_get_length (data) > 0)
1102 if (_dbus_string_get_length (&auth->
identity) > 0)
1105 _dbus_verbose (
"%s: client tried to send auth identity, but we already have one\n",
1107 return send_rejected (auth);
1118 if (_dbus_string_get_length (&auth->
identity) == 0 &&
1121 if (send_data (auth,
NULL))
1123 _dbus_verbose (
"%s: sending empty challenge asking client for auth identity\n",
1126 goto_state (auth, &server_state_waiting_for_data);
1140 if (_dbus_string_get_length (&auth->
identity) == 0)
1154 DBUS_CREDENTIALS_ADD_FLAGS_NONE,
1163 _dbus_verbose (
"%s: could not get credentials from uid string: %s\n",
1166 return send_rejected (auth);
1172 _dbus_verbose (
"%s: desired user %s is no good\n",
1174 _dbus_string_get_const_data (&auth->
identity));
1175 return send_rejected (auth);
1189 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
1194 DBUS_CREDENTIAL_ADT_AUDIT_DATA_ID,
1199 DBUS_CREDENTIAL_UNIX_GROUP_IDS,
1204 DBUS_CREDENTIAL_LINUX_SECURITY_LABEL,
1208 if (!send_ok (auth))
1211 _dbus_verbose (
"%s: authenticated client based on socket credentials\n",
1218 _dbus_verbose (
"%s: desired identity not found in socket credentials\n",
1220 return send_rejected (auth);
1225 handle_server_shutdown_external_mech (
DBusAuth *auth)
1231 handle_client_initial_response_external_mech (
DBusAuth *auth,
1249 _dbus_string_get_length (response)))
1262 handle_client_data_external_mech (
DBusAuth *auth,
1270 handle_client_shutdown_external_mech (
DBusAuth *auth)
1280 handle_server_data_anonymous_mech (
DBusAuth *auth,
1283 if (_dbus_string_get_length (data) > 0)
1292 _dbus_verbose (
"%s: Received invalid UTF-8 trace data from ANONYMOUS client\n",
1294 return send_rejected (auth);
1297 _dbus_verbose (
"%s: ANONYMOUS client sent trace string: '%s'\n",
1299 _dbus_string_get_const_data (data));
1308 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
1313 if (!send_ok (auth))
1316 _dbus_verbose (
"%s: authenticated client as anonymous\n",
1323 handle_server_shutdown_anonymous_mech (
DBusAuth *auth)
1329 handle_client_initial_response_anonymous_mech (
DBusAuth *auth,
1344 "libdbus " DBUS_VERSION_STRING))
1349 _dbus_string_get_length (response)))
1362 handle_client_data_anonymous_mech (
DBusAuth *auth,
1370 handle_client_shutdown_anonymous_mech (
DBusAuth *auth)
1387 all_mechanisms[] = {
1389 handle_server_data_external_mech,
1391 handle_server_shutdown_external_mech,
1392 handle_client_initial_response_external_mech,
1393 handle_client_data_external_mech,
1395 handle_client_shutdown_external_mech },
1396 {
"DBUS_COOKIE_SHA1",
1397 handle_server_data_cookie_sha1_mech,
1399 handle_server_shutdown_cookie_sha1_mech,
1400 handle_client_initial_response_cookie_sha1_mech,
1401 handle_client_data_cookie_sha1_mech,
1403 handle_client_shutdown_cookie_sha1_mech },
1405 handle_server_data_anonymous_mech,
1407 handle_server_shutdown_anonymous_mech,
1408 handle_client_initial_response_anonymous_mech,
1409 handle_client_data_anonymous_mech,
1411 handle_client_shutdown_anonymous_mech },
1421 if (allowed_mechs !=
NULL &&
1423 _dbus_string_get_const_data (name)))
1427 while (all_mechanisms[i].mechanism !=
NULL)
1430 all_mechanisms[i].mechanism))
1432 return &all_mechanisms[i];
1486 _dbus_string_get_length (&auth->
outgoing)))
1493 shutdown_mech (auth);
1495 goto_state (auth, &client_state_waiting_for_data);
1505 if (data ==
NULL || _dbus_string_get_length (data) == 0)
1509 old_len = _dbus_string_get_length (&auth->
outgoing);
1514 _dbus_string_get_length (&auth->
outgoing)))
1556 all_mechanisms[i].mechanism))
1564 _dbus_string_get_length (&auth->
outgoing)))
1567 shutdown_mech (auth);
1574 goto_state (auth, &common_state_need_disconnect);
1576 goto_state (auth, &server_state_waiting_for_auth);
1588 send_error (
DBusAuth *auth,
const char *message)
1591 "ERROR \"%s\"\r\n", message);
1599 orig_len = _dbus_string_get_length (&auth->
outgoing);
1605 _dbus_string_get_length (&auth->
outgoing)) &&
1608 goto_state (auth, &server_state_waiting_for_begin);
1626 goto_state (auth, &common_state_authenticated);
1649 if (end_of_hex != _dbus_string_get_length (args_from_ok) ||
1652 _dbus_verbose (
"Bad GUID from server, parsed %d bytes and had %d bytes from server\n",
1653 end_of_hex, _dbus_string_get_length (args_from_ok));
1654 goto_state (auth, &common_state_need_disconnect);
1663 _dbus_verbose (
"Got GUID '%s' from the server\n",
1664 _dbus_string_get_const_data (&
DBUS_AUTH_CLIENT (auth)->guid_from_server));
1668 if (!send_negotiate_unix_fd (auth))
1677 _dbus_verbose(
"Not negotiating unix fd passing, since not possible\n");
1679 if (!send_begin (auth))
1693 goto_state (auth, &client_state_waiting_for_reject);
1717 if (_dbus_string_get_length (args) != end)
1720 if (!send_error (auth,
"Invalid hex encoding"))
1726 #ifdef DBUS_ENABLE_VERBOSE_MODE 1728 _dbus_string_get_length (&decoded)))
1729 _dbus_verbose (
"%s: data: '%s'\n",
1731 _dbus_string_get_const_data (&decoded));
1734 if (!(* data_func) (auth, &decoded))
1745 send_negotiate_unix_fd (
DBusAuth *auth)
1748 "NEGOTIATE_UNIX_FD\r\n"))
1751 goto_state (auth, &client_state_waiting_for_agree_unix_fd);
1756 send_agree_unix_fd (
DBusAuth *auth)
1761 _dbus_verbose(
"Agreed to UNIX FD passing\n");
1764 "AGREE_UNIX_FD\r\n"))
1767 goto_state (auth, &server_state_waiting_for_begin);
1774 if (_dbus_string_get_length (args) == 0)
1777 if (!send_rejected (auth))
1809 _dbus_verbose (
"%s: Trying mechanism %s\n",
1813 if (!process_data (auth, &hex_response,
1820 _dbus_verbose (
"%s: Unsupported mechanism %s\n",
1822 _dbus_string_get_const_data (&mech));
1824 if (!send_rejected (auth))
1842 handle_server_state_waiting_for_auth (
DBusAuth *auth,
1848 case DBUS_AUTH_COMMAND_AUTH:
1849 return handle_auth (auth, args);
1851 case DBUS_AUTH_COMMAND_CANCEL:
1852 case DBUS_AUTH_COMMAND_DATA:
1853 return send_error (auth,
"Not currently in an auth conversation");
1855 case DBUS_AUTH_COMMAND_BEGIN:
1856 goto_state (auth, &common_state_need_disconnect);
1859 case DBUS_AUTH_COMMAND_ERROR:
1860 return send_rejected (auth);
1862 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1863 return send_error (auth,
"Need to authenticate first");
1865 case DBUS_AUTH_COMMAND_REJECTED:
1866 case DBUS_AUTH_COMMAND_OK:
1867 case DBUS_AUTH_COMMAND_UNKNOWN:
1868 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1870 return send_error (auth,
"Unknown command");
1875 handle_server_state_waiting_for_data (
DBusAuth *auth,
1881 case DBUS_AUTH_COMMAND_AUTH:
1882 return send_error (auth,
"Sent AUTH while another AUTH in progress");
1884 case DBUS_AUTH_COMMAND_CANCEL:
1885 case DBUS_AUTH_COMMAND_ERROR:
1886 return send_rejected (auth);
1888 case DBUS_AUTH_COMMAND_DATA:
1891 case DBUS_AUTH_COMMAND_BEGIN:
1892 goto_state (auth, &common_state_need_disconnect);
1895 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1896 return send_error (auth,
"Need to authenticate first");
1898 case DBUS_AUTH_COMMAND_REJECTED:
1899 case DBUS_AUTH_COMMAND_OK:
1900 case DBUS_AUTH_COMMAND_UNKNOWN:
1901 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1903 return send_error (auth,
"Unknown command");
1908 handle_server_state_waiting_for_begin (
DBusAuth *auth,
1914 case DBUS_AUTH_COMMAND_AUTH:
1915 return send_error (auth,
"Sent AUTH while expecting BEGIN");
1917 case DBUS_AUTH_COMMAND_DATA:
1918 return send_error (auth,
"Sent DATA while expecting BEGIN");
1920 case DBUS_AUTH_COMMAND_BEGIN:
1921 goto_state (auth, &common_state_authenticated);
1924 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1926 return send_agree_unix_fd(auth);
1928 return send_error(auth,
"Unix FD passing not supported, not authenticated or otherwise not possible");
1930 case DBUS_AUTH_COMMAND_REJECTED:
1931 case DBUS_AUTH_COMMAND_OK:
1932 case DBUS_AUTH_COMMAND_UNKNOWN:
1933 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1935 return send_error (auth,
"Unknown command");
1937 case DBUS_AUTH_COMMAND_CANCEL:
1938 case DBUS_AUTH_COMMAND_ERROR:
1939 return send_rejected (auth);
1975 len = _dbus_string_get_length (args);
1986 if (!get_word (args, &next, &m))
2005 if (mech != &all_mechanisms[0])
2007 _dbus_verbose (
"%s: Adding mechanism %s to list we will try\n",
2019 _dbus_verbose (
"%s: Already tried mechanism %s; not adding to list we will try\n",
2025 _dbus_verbose (
"%s: Server offered mechanism \"%s\" that we don't know how to use\n",
2027 _dbus_string_get_const_data (&m));
2053 if (!record_mechanisms (auth, args))
2061 if (!send_auth (auth, mech))
2066 _dbus_verbose (
"%s: Trying mechanism %s\n",
2073 _dbus_verbose (
"%s: Disconnecting because we are out of mechanisms to try using\n",
2075 goto_state (auth, &common_state_need_disconnect);
2083 handle_client_state_waiting_for_data (
DBusAuth *auth,
2091 case DBUS_AUTH_COMMAND_DATA:
2094 case DBUS_AUTH_COMMAND_REJECTED:
2095 return process_rejected (auth, args);
2097 case DBUS_AUTH_COMMAND_OK:
2098 return process_ok(auth, args);
2100 case DBUS_AUTH_COMMAND_ERROR:
2101 return send_cancel (auth);
2103 case DBUS_AUTH_COMMAND_AUTH:
2104 case DBUS_AUTH_COMMAND_CANCEL:
2105 case DBUS_AUTH_COMMAND_BEGIN:
2106 case DBUS_AUTH_COMMAND_UNKNOWN:
2107 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2108 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2110 return send_error (auth,
"Unknown command");
2115 handle_client_state_waiting_for_ok (
DBusAuth *auth,
2121 case DBUS_AUTH_COMMAND_REJECTED:
2122 return process_rejected (auth, args);
2124 case DBUS_AUTH_COMMAND_OK:
2125 return process_ok(auth, args);
2127 case DBUS_AUTH_COMMAND_DATA:
2128 case DBUS_AUTH_COMMAND_ERROR:
2129 return send_cancel (auth);
2131 case DBUS_AUTH_COMMAND_AUTH:
2132 case DBUS_AUTH_COMMAND_CANCEL:
2133 case DBUS_AUTH_COMMAND_BEGIN:
2134 case DBUS_AUTH_COMMAND_UNKNOWN:
2135 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2136 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2138 return send_error (auth,
"Unknown command");
2143 handle_client_state_waiting_for_reject (
DBusAuth *auth,
2149 case DBUS_AUTH_COMMAND_REJECTED:
2150 return process_rejected (auth, args);
2152 case DBUS_AUTH_COMMAND_AUTH:
2153 case DBUS_AUTH_COMMAND_CANCEL:
2154 case DBUS_AUTH_COMMAND_DATA:
2155 case DBUS_AUTH_COMMAND_BEGIN:
2156 case DBUS_AUTH_COMMAND_OK:
2157 case DBUS_AUTH_COMMAND_ERROR:
2158 case DBUS_AUTH_COMMAND_UNKNOWN:
2159 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2160 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2162 goto_state (auth, &common_state_need_disconnect);
2168 handle_client_state_waiting_for_agree_unix_fd(
DBusAuth *auth,
2174 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2177 _dbus_verbose(
"Successfully negotiated UNIX FD passing\n");
2178 return send_begin (auth);
2180 case DBUS_AUTH_COMMAND_ERROR:
2183 _dbus_verbose(
"Failed to negotiate UNIX FD passing\n");
2184 return send_begin (auth);
2186 case DBUS_AUTH_COMMAND_OK:
2187 case DBUS_AUTH_COMMAND_DATA:
2188 case DBUS_AUTH_COMMAND_REJECTED:
2189 case DBUS_AUTH_COMMAND_AUTH:
2190 case DBUS_AUTH_COMMAND_CANCEL:
2191 case DBUS_AUTH_COMMAND_BEGIN:
2192 case DBUS_AUTH_COMMAND_UNKNOWN:
2193 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2195 return send_error (auth,
"Unknown command");
2208 {
"AUTH", DBUS_AUTH_COMMAND_AUTH },
2209 {
"CANCEL", DBUS_AUTH_COMMAND_CANCEL },
2210 {
"DATA", DBUS_AUTH_COMMAND_DATA },
2211 {
"BEGIN", DBUS_AUTH_COMMAND_BEGIN },
2212 {
"REJECTED", DBUS_AUTH_COMMAND_REJECTED },
2213 {
"OK", DBUS_AUTH_COMMAND_OK },
2214 {
"ERROR", DBUS_AUTH_COMMAND_ERROR },
2215 {
"NEGOTIATE_UNIX_FD", DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD },
2216 {
"AGREE_UNIX_FD", DBUS_AUTH_COMMAND_AGREE_UNIX_FD }
2220 lookup_command_from_name (
DBusString *command)
2227 auth_command_names[i].name))
2228 return auth_command_names[i].command;
2231 return DBUS_AUTH_COMMAND_UNKNOWN;
2238 _dbus_verbose (
"%s: going from state %s to state %s\n",
2282 _dbus_string_get_length (&line)))
2284 _dbus_verbose (
"%s: Command contained non-ASCII chars or embedded nul\n",
2286 if (!send_error (auth,
"Command contained non-ASCII"))
2292 _dbus_verbose (
"%s: got command \"%s\"\n",
2294 _dbus_string_get_const_data (&line));
2309 command = lookup_command_from_name (&line);
2376 auth->
side = auth_side_server;
2377 auth->
state = &server_state_waiting_for_auth;
2381 server_auth->
guid = guid_copy;
2417 auth->
side = auth_side_client;
2418 auth->
state = &client_state_need_send_auth;
2422 if (!send_auth (auth, &all_mechanisms[0]))
2461 shutdown_mech (auth);
2504 const char **mechanisms)
2508 if (mechanisms !=
NULL)
2528 #define DBUS_AUTH_IN_END_STATE(auth) ((auth)->state->handler == NULL) 2543 #define MAX_BUFFER (16 * _DBUS_ONE_KILOBYTE) 2550 if (_dbus_string_get_length (&auth->
incoming) > MAX_BUFFER ||
2551 _dbus_string_get_length (&auth->
outgoing) > MAX_BUFFER)
2553 goto_state (auth, &common_state_need_disconnect);
2554 _dbus_verbose (
"%s: Disconnecting due to excessive data buffered in auth phase\n",
2559 while (process_command (auth));
2562 return DBUS_AUTH_STATE_WAITING_FOR_MEMORY;
2563 else if (_dbus_string_get_length (&auth->
outgoing) > 0)
2564 return DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND;
2565 else if (auth->
state == &common_state_need_disconnect)
2566 return DBUS_AUTH_STATE_NEED_DISCONNECT;
2567 else if (auth->
state == &common_state_authenticated)
2568 return DBUS_AUTH_STATE_AUTHENTICATED;
2569 else return DBUS_AUTH_STATE_WAITING_FOR_INPUT;
2590 if (_dbus_string_get_length (&auth->
outgoing) == 0)
2610 _dbus_verbose (
"%s: Sent %d bytes of: %s\n",
2613 _dbus_string_get_const_data (&auth->
outgoing));
2700 if (auth->
state != &common_state_authenticated)
2731 if (auth->
state != &common_state_authenticated)
2744 _dbus_string_get_length (encoded));
2759 if (auth->
state != &common_state_authenticated)
2794 if (auth->
state != &common_state_authenticated)
2807 _dbus_string_get_length (plaintext));
2840 if (auth->
state == &common_state_authenticated)
2866 if (auth->
state == &common_state_authenticated)
2867 return _dbus_string_get_const_data (&
DBUS_AUTH_CLIENT (auth)->guid_from_server);
2885 &auth->
context, 0, _dbus_string_get_length (context));
2924 return find_mech (name,
NULL) !=
NULL;
dbus_bool_t dbus_error_has_name(const DBusError *error, const char *name)
Checks whether the error is set and has the given name.
dbus_bool_t _dbus_string_append(DBusString *str, const char *buffer)
Appends a nul-terminated C-style string to a DBusString.
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_string_parse_int(const DBusString *str, int start, long *value_return, int *end_return)
Parses an integer contained in a DBusString.
const char * message
public error message field
void _dbus_auth_delete_unused_bytes(DBusAuth *auth)
Gets rid of unused bytes returned by _dbus_auth_get_unused_bytes() after we've gotten them and succes...
#define NULL
A null pointer, defined appropriately for C or C++.
dbus_bool_t _dbus_auth_dump_supported_mechanisms(DBusString *buffer)
Return a human-readable string containing all supported auth mechanisms.
void _dbus_auth_get_unused_bytes(DBusAuth *auth, const DBusString **str)
Returns leftover bytes that were not used as part of the auth conversation.
void _dbus_keyring_unref(DBusKeyring *keyring)
Decrements refcount and finalizes if it reaches zero.
dbus_bool_t _dbus_string_equal(const DBusString *a, const DBusString *b)
Tests two DBusString for equality.
DBusAuthDecodeFunction client_decode_func
Function on client side for decode.
DBusAuthEncodeFunction server_encode_func
Function on server side to encode.
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
dbus_bool_t _dbus_credentials_add_credential(DBusCredentials *credentials, DBusCredentialType which, DBusCredentials *other_credentials)
Merge the given credential found in the second object into the first object, overwriting the first ob...
DBusAuthCommand
Enumeration for the known authentication commands.
dbus_bool_t _dbus_auth_needs_decoding(DBusAuth *auth)
Called post-authentication, indicates whether we need to decode the message stream with _dbus_auth_de...
dbus_bool_t _dbus_string_hex_encode(const DBusString *source, int start, DBusString *dest, int insert_at)
Encodes a string in hex, the way MD5 and SHA-1 are usually encoded.
unsigned int buffer_outstanding
Buffer is "checked out" for reading data into.
DBusList * mechs_to_try
Mechanisms we got from the server that we're going to try using.
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_string_append_int(DBusString *str, long value)
Appends an integer to a DBusString.
dbus_bool_t _dbus_credentials_are_superset(DBusCredentials *credentials, DBusCredentials *possible_subset)
Checks whether the first credentials object contains all the credentials found in the second credenti...
dbus_bool_t _dbus_auth_encode_data(DBusAuth *auth, const DBusString *plaintext, DBusString *encoded)
Called post-authentication, encodes a block of bytes for sending to the peer.
Internals of DBusKeyring.
dbus_bool_t _dbus_auth_set_context(DBusAuth *auth, const DBusString *context)
Sets the "authentication context" which scopes cookies with the DBUS_COOKIE_SHA1 auth mechanism for e...
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
#define DBUS_ERROR_INIT
Expands to a suitable initializer for a DBusError on the stack.
void * data
Data stored at this element.
void _dbus_auth_return_buffer(DBusAuth *auth, DBusString *buffer)
Returns a buffer with new data read into it.
DBusAuthState _dbus_auth_do_work(DBusAuth *auth)
Analyzes buffered input and moves the auth conversation forward, returning the new state of the auth ...
void dbus_error_free(DBusError *error)
Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...
const char * mechanism
Name of the mechanism.
unsigned int unix_fd_negotiated
Unix fd was successfully negotiated.
dbus_bool_t _dbus_keyring_get_hex_key(DBusKeyring *keyring, int key_id, DBusString *hex_key)
Gets the hex-encoded secret key for the given ID.
dbus_bool_t _dbus_auth_set_mechanisms(DBusAuth *auth, const char **mechanisms)
Sets an array of authentication mechanism names that we are willing to use.
dbus_bool_t _dbus_auth_is_supported_mechanism(DBusString *name)
Queries whether the given auth mechanism is supported.
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
DBusAuthShutdownFunction server_shutdown_func
Function on server side to shut down.
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that's copied to the d...
DBusKeyring * keyring
Keyring for cookie mechanism.
DBusString context
Cookie scope.
dbus_bool_t(* DBusAuthDataFunction)(DBusAuth *auth, const DBusString *data)
This function processes a block of data received from the peer.
dbus_bool_t _dbus_auth_get_unix_fd_negotiated(DBusAuth *auth)
Queries whether unix fd passing was successfully negotiated.
void _dbus_credentials_clear(DBusCredentials *credentials)
Clear all credentials in the object.
dbus_bool_t _dbus_string_find(const DBusString *str, int start, const char *substr, int *found)
Finds the given substring in the string, returning TRUE and filling in the byte index where the subst...
DBusString guid
Our globally unique ID in hex encoding.
const char * side
Client or server.
dbus_bool_t _dbus_credentials_add_from_user(DBusCredentials *credentials, const DBusString *username, DBusCredentialsAddFlags flags, DBusError *error)
Adds the credentials corresponding to the given username.
dbus_bool_t _dbus_credentials_add_credentials(DBusCredentials *credentials, DBusCredentials *other_credentials)
Merge all credentials found in the second object into the first object, overwriting the first object ...
DBusString guid_from_server
GUID received from server.
DBusCredentials * _dbus_auth_get_identity(DBusAuth *auth)
Gets the identity we authorized the client as.
void _dbus_auth_get_buffer(DBusAuth *auth, DBusString **buffer)
Get a buffer to be used for reading bytes from the peer we're conversing with.
DBusString challenge
Challenge sent to client.
dbus_bool_t _dbus_auth_decode_data(DBusAuth *auth, const DBusString *encoded, DBusString *plaintext)
Called post-authentication, decodes a block of bytes received from the peer.
DBusCredentials * authorized_identity
Credentials that are authorized.
DBusAuthDecodeFunction server_decode_func
Function on server side to decode.
dbus_bool_t _dbus_string_move(DBusString *source, int start, DBusString *dest, int insert_at)
Moves the end of one string into another string.
dbus_bool_t _dbus_append_user_from_current_process(DBusString *str)
Append to the string the identity we would like to have when we authenticate, on UNIX this is the cur...
dbus_bool_t _dbus_credentials_are_anonymous(DBusCredentials *credentials)
Checks whether a credentials object contains a user identity.
dbus_bool_t _dbus_string_equal_c_str(const DBusString *a, const char *c_str)
Checks whether a string is equal to a C string.
void _dbus_auth_bytes_sent(DBusAuth *auth, int bytes_sent)
Notifies the auth conversation object that the given number of bytes of the outgoing buffer have been...
Internal members of DBusAuth.
DBusInitialResponseFunction client_initial_response_func
Function on client side to handle initial response.
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
"Subclass" of DBusAuth for server side.
DBusAuthStateFunction handler
State function for this state.
DBusAuthDataFunction client_data_func
Function on client side for DATA.
const DBusAuthStateData * state
Current protocol state.
dbus_bool_t _dbus_string_replace_len(const DBusString *source, int start, int len, DBusString *dest, int replace_at, int replace_len)
Replaces a segment of dest string with a segment of source string.
"Subclass" of DBusAuth for client side
DBusCredentials * desired_identity
Identity client has requested.
void _dbus_string_skip_blank(const DBusString *str, int start, int *end)
Skips blanks from start, storing the first non-blank in *end (blank is space or tab).
DBusCredentials * _dbus_credentials_new_from_current_process(void)
Creates a new object with the most important credentials (user ID and process ID) from the current pr...
DBusAuth * _dbus_auth_server_new(const DBusString *guid)
Creates a new auth conversation object for the server side.
unsigned int needed_memory
We needed memory to continue since last successful getting something done.
#define DBUS_AUTH_NAME(auth)
The name of the auth ("client" or "server")
DBusAuth * _dbus_auth_ref(DBusAuth *auth)
Increments the refcount of an auth object.
unsigned int already_asked_for_initial_response
Already sent a blank challenge to get an initial response.
void _dbus_string_delete(DBusString *str, int start, int len)
Deletes a segment of a DBusString with length len starting at start.
DBusString identity
Current identity we're authorizing as.
dbus_bool_t(* DBusInitialResponseFunction)(DBusAuth *auth, DBusString *response)
This function appends an initial client response to the given string.
dbus_bool_t _dbus_list_append(DBusList **list, void *data)
Appends a value to the list.
unsigned int already_got_mechanisms
Client already got mech list.
dbus_bool_t _dbus_string_append_printf(DBusString *str, const char *format,...)
Appends a printf-style formatted string to the DBusString.
void _dbus_string_zero(DBusString *str)
Clears all allocated bytes in the string to zero.
int cookie_id
ID of cookie to use.
Information about a auth state.
Object representing an exception.
dbus_bool_t(* DBusAuthStateFunction)(DBusAuth *auth, DBusAuthCommand command, const DBusString *args)
Auth state function, determines the reaction to incoming events for a particular state.
int _dbus_keyring_get_best_key(DBusKeyring *keyring, DBusError *error)
Gets a recent key to use for authentication.
dbus_bool_t _dbus_string_validate_utf8(const DBusString *str, int start, int len)
Checks that the given range of the string is valid UTF-8.
DBusAuth base
Parent class.
DBusAuthShutdownFunction client_shutdown_func
Function on client side for shutdown.
void * _dbus_list_pop_first(DBusList **list)
Removes the first value in the list and returns it.
int refcount
reference count
const char * _dbus_auth_get_guid_from_server(DBusAuth *auth)
Gets the GUID from the server if we've authenticated; gets NULL otherwise.
#define _DBUS_N_ELEMENTS(array)
Computes the number of elements in a fixed-size array using sizeof().
char ** allowed_mechs
Mechanisms we're allowed to use, or NULL if we can use any.
const char * name
Name of the command.
dbus_bool_t(* DBusAuthDecodeFunction)(DBusAuth *auth, const DBusString *data, DBusString *decoded)
This function decodes a block of data from the peer.
#define DBUS_AUTH_CLIENT(auth)
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init(), and fills it with the same contents as #_DBUS_STRING_I...
char ** _dbus_dup_string_array(const char **array)
Duplicates a string array.
#define TRUE
Expands to "1".
int failures
Number of times client has been rejected.
#define DBUS_AUTH_IS_SERVER(auth)
void(* DBusAuthShutdownFunction)(DBusAuth *auth)
This function is called when the mechanism is abandoned.
#define N_CHALLENGE_BYTES
http://www.ietf.org/rfc/rfc2831.txt suggests at least 64 bits of entropy, we use 128.
dbus_bool_t _dbus_string_find_blank(const DBusString *str, int start, int *found)
Finds a blank (space or tab) in the string.
DBusString incoming
Incoming data buffer.
dbus_bool_t _dbus_auth_set_credentials(DBusAuth *auth, DBusCredentials *credentials)
Sets credentials received via reliable means from the operating system.
dbus_bool_t _dbus_keyring_is_for_credentials(DBusKeyring *keyring, DBusCredentials *credentials)
Checks whether the keyring is for the same user as the given credentials.
void _dbus_auth_set_unix_fd_possible(DBusAuth *auth, dbus_bool_t b)
Sets whether unix fd passing is potentially on the transport and hence shall be negotiated.
const char * name
Name of the state.
DBusAuthEncodeFunction client_encode_func
Function on client side for encode.
DBusCredentials * _dbus_credentials_new(void)
Creates a new credentials object.
DBusKeyring * _dbus_keyring_new_for_credentials(DBusCredentials *credentials, const DBusString *context, DBusError *error)
Creates a new keyring that lives in the ~/.dbus-keyrings directory of the user represented by credent...
DBusAuthDataFunction server_data_func
Function on server side for DATA.
dbus_bool_t(* DBusAuthEncodeFunction)(DBusAuth *auth, const DBusString *data, DBusString *encoded)
This function encodes a block of data from the peer.
dbus_bool_t _dbus_string_hex_decode(const DBusString *source, int start, int *end_return, DBusString *dest, int insert_at)
Decodes a string from hex encoding.
void dbus_free_string_array(char **str_array)
Frees a NULL-terminated array of strings.
dbus_bool_t _dbus_string_array_contains(const char **array, const char *str)
Checks whether a string array contains the given string.
int max_failures
Number of times we reject before disconnect.
void _dbus_auth_unref(DBusAuth *auth)
Decrements the refcount of an auth object.
dbus_bool_t _dbus_generate_random_bytes(DBusString *str, int n_bytes, DBusError *error)
Generates the given number of securely random bytes, using the best mechanism we can come up with...
dbus_bool_t _dbus_auth_get_bytes_to_send(DBusAuth *auth, const DBusString **str)
Gets bytes that need to be sent to the peer we're conversing with.
Mapping from command name to enum.
Virtual table representing a particular auth mechanism.
#define DBUS_ERROR_NO_MEMORY
There was not enough memory to complete an operation.
void _dbus_credentials_unref(DBusCredentials *credentials)
Decrement refcount on credentials.
#define FALSE
Expands to "0".
const DBusAuthMechanismHandler * mech
Current auth mechanism.
#define DBUS_AUTH_SERVER(auth)
unsigned int unix_fd_possible
This side could do unix fd passing.
dbus_bool_t _dbus_credentials_same_user(DBusCredentials *credentials, DBusCredentials *other_credentials)
Check whether the user-identifying credentials in two credentials objects are identical.
dbus_bool_t _dbus_sha_compute(const DBusString *data, DBusString *ascii_output)
Computes the ASCII hex-encoded shasum of the given data and appends it to the output string...
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string.
dbus_bool_t _dbus_string_copy_len(const DBusString *source, int start, int len, DBusString *dest, int insert_at)
Like _dbus_string_copy(), but can copy a segment from the middle of the source string.
void * dbus_malloc0(size_t bytes)
Allocates the given number of bytes, as with standard malloc(), but all bytes are initialized to zero...
dbus_bool_t _dbus_auth_needs_encoding(DBusAuth *auth)
Called post-authentication, indicates whether we need to encode the message stream with _dbus_auth_en...
DBusCredentials * credentials
Credentials read from socket.
DBusAuth * _dbus_auth_client_new(void)
Creates a new auth conversation object for the client side.
dbus_bool_t _dbus_string_validate_ascii(const DBusString *str, int start, int len)
Checks that the given range of the string is valid ASCII with no nul bytes.
DBusAuth base
Parent class.
dbus_bool_t _dbus_keyring_validate_context(const DBusString *context)
Checks whether the context is a valid context.
#define DBUS_AUTH_IN_END_STATE(auth)
dbus_bool_t dbus_error_is_set(const DBusError *error)
Checks whether an error occurred (the error is set).
DBusString outgoing
Outgoing data buffer.
dbus_bool_t _dbus_credentials_are_empty(DBusCredentials *credentials)
Checks whether a credentials object contains anything.
#define DBUS_AUTH_IS_CLIENT(auth)
DBusAuthCommand command
Corresponding enum.
void _dbus_list_clear(DBusList **list)
Frees all links in the list and sets the list head to NULL.