26#include "dbus-string.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
223static 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
310static const char auth_side_client[] =
"client";
311static 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)
522sha1_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);
555 _dbus_verbose (
"%s: Did not get a valid username from client\n",
557 return send_rejected (auth);
589 _dbus_verbose (
"%s: client tried to authenticate as \"%s\", "
590 "but that doesn't match this process",
592 _dbus_string_get_const_data (data));
593 retval = send_rejected (auth);
625 _DBUS_ASSERT_ERROR_IS_SET (&error);
626 _dbus_verbose (
"%s: Error loading keyring: %s\n",
628 if (send_rejected (auth))
645 _DBUS_ASSERT_ERROR_IS_SET (&error);
646 _dbus_verbose (
"%s: Could not get a cookie ID to send to client: %s\n",
648 if (send_rejected (auth))
659 &tmp2, _dbus_string_get_length (&tmp2)))
680 _DBUS_ASSERT_ERROR_IS_SET (&error);
681 _dbus_verbose (
"%s: Error generating challenge: %s\n",
683 if (send_rejected (auth))
696 _dbus_string_get_length (&tmp2)))
699 if (!send_data (auth, &tmp2))
702 goto_state (auth, &server_state_waiting_for_data);
718sha1_handle_second_client_response (
DBusAuth *auth,
736 _dbus_verbose (
"%s: no space separator in client response\n",
738 return send_rejected (auth);
754 _dbus_string_get_length (data) - i,
759 if (_dbus_string_get_length (&client_challenge) == 0 ||
760 _dbus_string_get_length (&client_hash) == 0)
762 _dbus_verbose (
"%s: zero-length client challenge or hash\n",
764 if (send_rejected (auth))
772 if (!sha1_compute_hash (auth, auth->
cookie_id,
779 if (_dbus_string_get_length (&correct_hash) == 0)
781 if (send_rejected (auth))
788 if (send_rejected (auth))
800 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
807 _dbus_verbose (
"%s: authenticated client using DBUS_COOKIE_SHA1\n",
825handle_server_data_cookie_sha1_mech (
DBusAuth *auth,
829 return sha1_handle_first_client_response (auth, data);
831 return sha1_handle_second_client_response (auth, data);
835handle_server_shutdown_cookie_sha1_mech (
DBusAuth *auth)
842handle_client_initial_response_cookie_sha1_mech (
DBusAuth *auth,
858 _dbus_string_get_length (response)))
870handle_client_data_cookie_sha1_mech (
DBusAuth *auth,
890 if (send_error (auth,
891 "Server did not send context/ID/challenge properly"))
906 if (send_error (auth,
907 "Server did not send context/ID/challenge properly"))
924 j = _dbus_string_get_length (data);
927 &server_challenge, 0))
932 if (send_error (auth,
"Server sent invalid cookie context"))
939 if (send_error (auth,
"Could not parse cookie ID as an integer"))
944 if (_dbus_string_get_length (&server_challenge) == 0)
946 if (send_error (auth,
"Empty server challenge string"))
967 _DBUS_ASSERT_ERROR_IS_SET (&error);
969 _dbus_verbose (
"%s: Error loading keyring: %s\n",
972 if (send_error (auth,
"Could not load cookie file"))
999 _DBUS_ASSERT_ERROR_IS_SET (&error);
1001 _dbus_verbose (
"%s: Failed to generate challenge: %s\n",
1004 if (send_error (auth,
"Failed to generate challenge"))
1021 if (!sha1_compute_hash (auth, val,
1027 if (_dbus_string_get_length (&correct_hash) == 0)
1030 if (send_error (auth,
"Don't have the requested cookie ID"))
1038 _dbus_string_get_length (&tmp)))
1045 _dbus_string_get_length (&tmp)))
1048 if (!send_data (auth, &tmp))
1072handle_client_shutdown_cookie_sha1_mech (
DBusAuth *auth)
1083handle_server_data_external_mech (
DBusAuth *auth,
1088 _dbus_verbose (
"%s: no credentials, mechanism EXTERNAL can't authenticate\n",
1090 return send_rejected (auth);
1093 if (_dbus_string_get_length (data) > 0)
1095 if (_dbus_string_get_length (&auth->
identity) > 0)
1098 _dbus_verbose (
"%s: client tried to send auth identity, but we already have one\n",
1100 return send_rejected (auth);
1111 if (_dbus_string_get_length (&auth->
identity) == 0 &&
1114 if (send_data (auth,
NULL))
1116 _dbus_verbose (
"%s: sending empty challenge asking client for auth identity\n",
1119 goto_state (auth, &server_state_waiting_for_data);
1133 if (_dbus_string_get_length (&auth->
identity) == 0)
1146 _dbus_verbose (
"%s: could not get credentials from uid string\n",
1148 return send_rejected (auth);
1154 _dbus_verbose (
"%s: desired user %s is no good\n",
1156 _dbus_string_get_const_data (&auth->
identity));
1157 return send_rejected (auth);
1171 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
1176 DBUS_CREDENTIAL_ADT_AUDIT_DATA_ID,
1181 DBUS_CREDENTIAL_LINUX_SECURITY_LABEL,
1185 if (!send_ok (auth))
1188 _dbus_verbose (
"%s: authenticated client based on socket credentials\n",
1195 _dbus_verbose (
"%s: desired identity not found in socket credentials\n",
1197 return send_rejected (auth);
1202handle_server_shutdown_external_mech (
DBusAuth *auth)
1208handle_client_initial_response_external_mech (
DBusAuth *auth,
1226 _dbus_string_get_length (response)))
1239handle_client_data_external_mech (
DBusAuth *auth,
1247handle_client_shutdown_external_mech (
DBusAuth *auth)
1257handle_server_data_anonymous_mech (
DBusAuth *auth,
1260 if (_dbus_string_get_length (data) > 0)
1269 _dbus_verbose (
"%s: Received invalid UTF-8 trace data from ANONYMOUS client\n",
1271 return send_rejected (auth);
1274 _dbus_verbose (
"%s: ANONYMOUS client sent trace string: '%s'\n",
1276 _dbus_string_get_const_data (data));
1285 DBUS_CREDENTIAL_UNIX_PROCESS_ID,
1290 if (!send_ok (auth))
1293 _dbus_verbose (
"%s: authenticated client as anonymous\n",
1300handle_server_shutdown_anonymous_mech (
DBusAuth *auth)
1306handle_client_initial_response_anonymous_mech (
DBusAuth *auth,
1326 _dbus_string_get_length (response)))
1339handle_client_data_anonymous_mech (
DBusAuth *auth,
1347handle_client_shutdown_anonymous_mech (
DBusAuth *auth)
1366 handle_server_data_external_mech,
1368 handle_server_shutdown_external_mech,
1369 handle_client_initial_response_external_mech,
1370 handle_client_data_external_mech,
1372 handle_client_shutdown_external_mech },
1373 {
"DBUS_COOKIE_SHA1",
1374 handle_server_data_cookie_sha1_mech,
1376 handle_server_shutdown_cookie_sha1_mech,
1377 handle_client_initial_response_cookie_sha1_mech,
1378 handle_client_data_cookie_sha1_mech,
1380 handle_client_shutdown_cookie_sha1_mech },
1382 handle_server_data_anonymous_mech,
1384 handle_server_shutdown_anonymous_mech,
1385 handle_client_initial_response_anonymous_mech,
1386 handle_client_data_anonymous_mech,
1388 handle_client_shutdown_anonymous_mech },
1394 char **allowed_mechs)
1398 if (allowed_mechs !=
NULL &&
1400 _dbus_string_get_const_data (name)))
1404 while (all_mechanisms[i].mechanism !=
NULL)
1407 all_mechanisms[i].mechanism))
1409 return &all_mechanisms[i];
1463 _dbus_string_get_length (&auth->
outgoing)))
1470 shutdown_mech (auth);
1472 goto_state (auth, &client_state_waiting_for_data);
1482 if (data ==
NULL || _dbus_string_get_length (data) == 0)
1486 old_len = _dbus_string_get_length (&auth->
outgoing);
1491 _dbus_string_get_length (&auth->
outgoing)))
1525 all_mechanisms[i].mechanism))
1533 all_mechanisms[i].mechanism))
1541 _dbus_string_get_length (&auth->
outgoing)))
1544 shutdown_mech (auth);
1551 goto_state (auth, &common_state_need_disconnect);
1553 goto_state (auth, &server_state_waiting_for_auth);
1565send_error (
DBusAuth *auth,
const char *message)
1568 "ERROR \"%s\"\r\n", message);
1576 orig_len = _dbus_string_get_length (&auth->
outgoing);
1582 _dbus_string_get_length (&auth->
outgoing)) &&
1585 goto_state (auth, &server_state_waiting_for_begin);
1603 goto_state (auth, &common_state_authenticated);
1626 if (end_of_hex != _dbus_string_get_length (args_from_ok) ||
1629 _dbus_verbose (
"Bad GUID from server, parsed %d bytes and had %d bytes from server\n",
1630 end_of_hex, _dbus_string_get_length (args_from_ok));
1631 goto_state (auth, &common_state_need_disconnect);
1640 _dbus_verbose (
"Got GUID '%s' from the server\n",
1641 _dbus_string_get_const_data (&
DBUS_AUTH_CLIENT (auth)->guid_from_server));
1644 return send_negotiate_unix_fd(auth);
1646 _dbus_verbose(
"Not negotiating unix fd passing, since not possible\n");
1647 return send_begin (auth);
1655 goto_state (auth, &client_state_waiting_for_reject);
1679 if (_dbus_string_get_length (args) != end)
1682 if (!send_error (auth,
"Invalid hex encoding"))
1688#ifdef DBUS_ENABLE_VERBOSE_MODE
1690 _dbus_string_get_length (&decoded)))
1691 _dbus_verbose (
"%s: data: '%s'\n",
1693 _dbus_string_get_const_data (&decoded));
1696 if (!(* data_func) (auth, &decoded))
1707send_negotiate_unix_fd (
DBusAuth *auth)
1710 "NEGOTIATE_UNIX_FD\r\n"))
1713 goto_state (auth, &client_state_waiting_for_agree_unix_fd);
1723 _dbus_verbose(
"Agreed to UNIX FD passing\n");
1726 "AGREE_UNIX_FD\r\n"))
1729 goto_state (auth, &server_state_waiting_for_begin);
1736 if (_dbus_string_get_length (args) == 0)
1739 if (!send_rejected (auth))
1771 _dbus_verbose (
"%s: Trying mechanism %s\n",
1775 if (!process_data (auth, &hex_response,
1782 _dbus_verbose (
"%s: Unsupported mechanism %s\n",
1784 _dbus_string_get_const_data (&mech));
1786 if (!send_rejected (auth))
1804handle_server_state_waiting_for_auth (
DBusAuth *auth,
1810 case DBUS_AUTH_COMMAND_AUTH:
1811 return handle_auth (auth, args);
1813 case DBUS_AUTH_COMMAND_CANCEL:
1814 case DBUS_AUTH_COMMAND_DATA:
1815 return send_error (auth,
"Not currently in an auth conversation");
1817 case DBUS_AUTH_COMMAND_BEGIN:
1818 goto_state (auth, &common_state_need_disconnect);
1821 case DBUS_AUTH_COMMAND_ERROR:
1822 return send_rejected (auth);
1824 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1825 return send_error (auth,
"Need to authenticate first");
1827 case DBUS_AUTH_COMMAND_REJECTED:
1828 case DBUS_AUTH_COMMAND_OK:
1829 case DBUS_AUTH_COMMAND_UNKNOWN:
1830 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1832 return send_error (auth,
"Unknown command");
1837handle_server_state_waiting_for_data (
DBusAuth *auth,
1843 case DBUS_AUTH_COMMAND_AUTH:
1844 return send_error (auth,
"Sent AUTH while another AUTH in progress");
1846 case DBUS_AUTH_COMMAND_CANCEL:
1847 case DBUS_AUTH_COMMAND_ERROR:
1848 return send_rejected (auth);
1850 case DBUS_AUTH_COMMAND_DATA:
1853 case DBUS_AUTH_COMMAND_BEGIN:
1854 goto_state (auth, &common_state_need_disconnect);
1857 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1858 return send_error (auth,
"Need to authenticate first");
1860 case DBUS_AUTH_COMMAND_REJECTED:
1861 case DBUS_AUTH_COMMAND_OK:
1862 case DBUS_AUTH_COMMAND_UNKNOWN:
1863 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1865 return send_error (auth,
"Unknown command");
1870handle_server_state_waiting_for_begin (
DBusAuth *auth,
1876 case DBUS_AUTH_COMMAND_AUTH:
1877 return send_error (auth,
"Sent AUTH while expecting BEGIN");
1879 case DBUS_AUTH_COMMAND_DATA:
1880 return send_error (auth,
"Sent DATA while expecting BEGIN");
1882 case DBUS_AUTH_COMMAND_BEGIN:
1883 goto_state (auth, &common_state_authenticated);
1886 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
1888 return send_agree_unix_fd(auth);
1890 return send_error(auth,
"Unix FD passing not supported, not authenticated or otherwise not possible");
1892 case DBUS_AUTH_COMMAND_REJECTED:
1893 case DBUS_AUTH_COMMAND_OK:
1894 case DBUS_AUTH_COMMAND_UNKNOWN:
1895 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
1897 return send_error (auth,
"Unknown command");
1899 case DBUS_AUTH_COMMAND_CANCEL:
1900 case DBUS_AUTH_COMMAND_ERROR:
1901 return send_rejected (auth);
1937 len = _dbus_string_get_length (args);
1948 if (!get_word (args, &next, &m))
1967 if (mech != &all_mechanisms[0])
1969 _dbus_verbose (
"%s: Adding mechanism %s to list we will try\n",
1981 _dbus_verbose (
"%s: Already tried mechanism %s; not adding to list we will try\n",
1987 _dbus_verbose (
"%s: Server offered mechanism \"%s\" that we don't know how to use\n",
1989 _dbus_string_get_const_data (&m));
2015 if (!record_mechanisms (auth, args))
2023 if (!send_auth (auth, mech))
2028 _dbus_verbose (
"%s: Trying mechanism %s\n",
2035 _dbus_verbose (
"%s: Disconnecting because we are out of mechanisms to try using\n",
2037 goto_state (auth, &common_state_need_disconnect);
2045handle_client_state_waiting_for_data (
DBusAuth *auth,
2053 case DBUS_AUTH_COMMAND_DATA:
2056 case DBUS_AUTH_COMMAND_REJECTED:
2057 return process_rejected (auth, args);
2059 case DBUS_AUTH_COMMAND_OK:
2060 return process_ok(auth, args);
2062 case DBUS_AUTH_COMMAND_ERROR:
2063 return send_cancel (auth);
2065 case DBUS_AUTH_COMMAND_AUTH:
2066 case DBUS_AUTH_COMMAND_CANCEL:
2067 case DBUS_AUTH_COMMAND_BEGIN:
2068 case DBUS_AUTH_COMMAND_UNKNOWN:
2069 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2070 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2072 return send_error (auth,
"Unknown command");
2077handle_client_state_waiting_for_ok (
DBusAuth *auth,
2083 case DBUS_AUTH_COMMAND_REJECTED:
2084 return process_rejected (auth, args);
2086 case DBUS_AUTH_COMMAND_OK:
2087 return process_ok(auth, args);
2089 case DBUS_AUTH_COMMAND_DATA:
2090 case DBUS_AUTH_COMMAND_ERROR:
2091 return send_cancel (auth);
2093 case DBUS_AUTH_COMMAND_AUTH:
2094 case DBUS_AUTH_COMMAND_CANCEL:
2095 case DBUS_AUTH_COMMAND_BEGIN:
2096 case DBUS_AUTH_COMMAND_UNKNOWN:
2097 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2098 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2100 return send_error (auth,
"Unknown command");
2105handle_client_state_waiting_for_reject (
DBusAuth *auth,
2111 case DBUS_AUTH_COMMAND_REJECTED:
2112 return process_rejected (auth, args);
2114 case DBUS_AUTH_COMMAND_AUTH:
2115 case DBUS_AUTH_COMMAND_CANCEL:
2116 case DBUS_AUTH_COMMAND_DATA:
2117 case DBUS_AUTH_COMMAND_BEGIN:
2118 case DBUS_AUTH_COMMAND_OK:
2119 case DBUS_AUTH_COMMAND_ERROR:
2120 case DBUS_AUTH_COMMAND_UNKNOWN:
2121 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2122 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2124 goto_state (auth, &common_state_need_disconnect);
2130handle_client_state_waiting_for_agree_unix_fd(
DBusAuth *auth,
2136 case DBUS_AUTH_COMMAND_AGREE_UNIX_FD:
2139 _dbus_verbose(
"Successfully negotiated UNIX FD passing\n");
2140 return send_begin (auth);
2142 case DBUS_AUTH_COMMAND_ERROR:
2145 _dbus_verbose(
"Failed to negotiate UNIX FD passing\n");
2146 return send_begin (auth);
2148 case DBUS_AUTH_COMMAND_OK:
2149 case DBUS_AUTH_COMMAND_DATA:
2150 case DBUS_AUTH_COMMAND_REJECTED:
2151 case DBUS_AUTH_COMMAND_AUTH:
2152 case DBUS_AUTH_COMMAND_CANCEL:
2153 case DBUS_AUTH_COMMAND_BEGIN:
2154 case DBUS_AUTH_COMMAND_UNKNOWN:
2155 case DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD:
2157 return send_error (auth,
"Unknown command");
2170 {
"AUTH", DBUS_AUTH_COMMAND_AUTH },
2171 {
"CANCEL", DBUS_AUTH_COMMAND_CANCEL },
2172 {
"DATA", DBUS_AUTH_COMMAND_DATA },
2173 {
"BEGIN", DBUS_AUTH_COMMAND_BEGIN },
2174 {
"REJECTED", DBUS_AUTH_COMMAND_REJECTED },
2175 {
"OK", DBUS_AUTH_COMMAND_OK },
2176 {
"ERROR", DBUS_AUTH_COMMAND_ERROR },
2177 {
"NEGOTIATE_UNIX_FD", DBUS_AUTH_COMMAND_NEGOTIATE_UNIX_FD },
2178 {
"AGREE_UNIX_FD", DBUS_AUTH_COMMAND_AGREE_UNIX_FD }
2182lookup_command_from_name (
DBusString *command)
2189 auth_command_names[i].name))
2190 return auth_command_names[i].command;
2193 return DBUS_AUTH_COMMAND_UNKNOWN;
2200 _dbus_verbose (
"%s: going from state %s to state %s\n",
2205 auth->
state = state;
2244 _dbus_string_get_length (&line)))
2246 _dbus_verbose (
"%s: Command contained non-ASCII chars or embedded nul\n",
2248 if (!send_error (auth,
"Command contained non-ASCII"))
2254 _dbus_verbose (
"%s: got command \"%s\"\n",
2256 _dbus_string_get_const_data (&line));
2271 command = lookup_command_from_name (&line);
2338 auth->
side = auth_side_server;
2339 auth->
state = &server_state_waiting_for_auth;
2343 server_auth->
guid = guid_copy;
2379 auth->
side = auth_side_client;
2380 auth->
state = &client_state_need_send_auth;
2384 if (!send_auth (auth, &all_mechanisms[0]))
2423 shutdown_mech (auth);
2466 const char **mechanisms)
2470 if (mechanisms !=
NULL)
2490#define DBUS_AUTH_IN_END_STATE(auth) ((auth)->state->handler == NULL)
2505#define MAX_BUFFER (16 * _DBUS_ONE_KILOBYTE)
2512 if (_dbus_string_get_length (&auth->
incoming) > MAX_BUFFER ||
2513 _dbus_string_get_length (&auth->
outgoing) > MAX_BUFFER)
2515 goto_state (auth, &common_state_need_disconnect);
2516 _dbus_verbose (
"%s: Disconnecting due to excessive data buffered in auth phase\n",
2521 while (process_command (auth));
2524 return DBUS_AUTH_STATE_WAITING_FOR_MEMORY;
2525 else if (_dbus_string_get_length (&auth->
outgoing) > 0)
2526 return DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND;
2527 else if (auth->
state == &common_state_need_disconnect)
2528 return DBUS_AUTH_STATE_NEED_DISCONNECT;
2529 else if (auth->
state == &common_state_authenticated)
2530 return DBUS_AUTH_STATE_AUTHENTICATED;
2531 else return DBUS_AUTH_STATE_WAITING_FOR_INPUT;
2552 if (_dbus_string_get_length (&auth->
outgoing) == 0)
2572 _dbus_verbose (
"%s: Sent %d bytes of: %s\n",
2575 _dbus_string_get_const_data (&auth->
outgoing));
2662 if (auth->
state != &common_state_authenticated)
2693 if (auth->
state != &common_state_authenticated)
2706 _dbus_string_get_length (encoded));
2721 if (auth->
state != &common_state_authenticated)
2756 if (auth->
state != &common_state_authenticated)
2769 _dbus_string_get_length (plaintext));
2802 if (auth->
state == &common_state_authenticated)
2828 if (auth->
state == &common_state_authenticated)
2829 return _dbus_string_get_const_data (&
DBUS_AUTH_CLIENT (auth)->guid_from_server);
2847 &auth->
context, 0, _dbus_string_get_length (context));
2886 return find_mech (name,
NULL) !=
NULL;
dbus_bool_t(* DBusAuthEncodeFunction)(DBusAuth *auth, const DBusString *data, DBusString *encoded)
This function encodes a block of data from the peer.
dbus_bool_t(* DBusAuthDecodeFunction)(DBusAuth *auth, const DBusString *data, DBusString *decoded)
This function decodes a block of data from the peer.
#define DBUS_AUTH_SERVER(auth)
#define DBUS_AUTH_IS_SERVER(auth)
#define DBUS_AUTH_NAME(auth)
The name of the auth ("client" or "server")
#define DBUS_AUTH_CLIENT(auth)
#define DBUS_AUTH_IS_CLIENT(auth)
dbus_bool_t(* DBusAuthStateFunction)(DBusAuth *auth, DBusAuthCommand command, const DBusString *args)
Auth state function, determines the reaction to incoming events for a particular state.
void(* DBusAuthShutdownFunction)(DBusAuth *auth)
This function is called when the mechanism is abandoned.
dbus_bool_t(* DBusInitialResponseFunction)(DBusAuth *auth, DBusString *response)
This function appends an initial client response to the given string.
DBusAuthCommand
Enumeration for the known authentication commands.
dbus_bool_t(* DBusAuthDataFunction)(DBusAuth *auth, const DBusString *data)
This function processes a block of data received from the peer.
#define N_CHALLENGE_BYTES
http://www.ietf.org/rfc/rfc2831.txt suggests at least 64 bits of entropy, we use 128.
DBusAuthState _dbus_auth_do_work(DBusAuth *auth)
Analyzes buffered input and moves the auth conversation forward, returning the new state of the auth ...
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.
dbus_bool_t _dbus_auth_dump_supported_mechanisms(DBusString *buffer)
Return a human-readable string containing all supported auth mechanisms.
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...
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_auth_get_unix_fd_negotiated(DBusAuth *auth)
Queries whether unix fd passing was successfully negotiated.
DBusAuth * _dbus_auth_ref(DBusAuth *auth)
Increments the refcount of an auth object.
dbus_bool_t _dbus_auth_is_supported_mechanism(DBusString *name)
Queries whether the given auth mechanism is supported.
DBusCredentials * _dbus_auth_get_identity(DBusAuth *auth)
Gets the identity we authorized the client as.
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.
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.
void _dbus_auth_unref(DBusAuth *auth)
Decrements the refcount of an auth object.
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.
void _dbus_auth_return_buffer(DBusAuth *auth, DBusString *buffer)
Returns a buffer with new data read into it.
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.
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...
const char * _dbus_auth_get_guid_from_server(DBusAuth *auth)
Gets the GUID from the server if we've authenticated; gets NULL otherwise.
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.
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_auth_set_context(DBusAuth *auth, const DBusString *context)
Sets the "authentication context" which scopes cookies with the DBUS_COOKIE_SHA1 auth mechanism for e...
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...
#define DBUS_AUTH_IN_END_STATE(auth)
DBusAuth * _dbus_auth_client_new(void)
Creates a new auth conversation object for the client side.
DBusAuth * _dbus_auth_server_new(const DBusString *guid)
Creates a new auth conversation object for the server side.
void _dbus_auth_get_unused_bytes(DBusAuth *auth, const DBusString **str)
Returns leftover bytes that were not used as part of the auth conversation.
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_credentials_same_user(DBusCredentials *credentials, DBusCredentials *other_credentials)
Check whether the user-identifying credentials in two credentials objects are identical.
void _dbus_credentials_clear(DBusCredentials *credentials)
Clear all credentials in the object.
DBusCredentials * _dbus_credentials_new_from_current_process(void)
Creates a new object with credentials (user ID and process ID) from the current process.
DBusCredentials * _dbus_credentials_new(void)
Creates a new credentials object.
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 ...
void _dbus_credentials_unref(DBusCredentials *credentials)
Decrement refcount on credentials.
dbus_bool_t _dbus_credentials_are_empty(DBusCredentials *credentials)
Checks whether a credentials object contains anything.
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...
dbus_bool_t _dbus_credentials_are_anonymous(DBusCredentials *credentials)
Checks whether a credentials object contains a user identity.
#define DBUS_ERROR_INIT
Expands to a suitable initializer for a DBusError on the stack.
dbus_bool_t dbus_error_has_name(const DBusError *error, const char *name)
Checks whether the error is set and has the given name.
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...
dbus_bool_t dbus_error_is_set(const DBusError *error)
Checks whether an error occurred (the error is set).
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
dbus_bool_t _dbus_string_array_contains(const char **array, const char *str)
Checks whether a string array contains the given string.
#define _DBUS_N_ELEMENTS(array)
Computes the number of elements in a fixed-size array using sizeof().
char ** _dbus_dup_string_array(const char **array)
Duplicates a string array.
int _dbus_keyring_get_best_key(DBusKeyring *keyring, DBusError *error)
Gets a recent key to use for authentication.
dbus_bool_t _dbus_keyring_validate_context(const DBusString *context)
Checks whether the context is a valid context.
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.
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...
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.
void _dbus_keyring_unref(DBusKeyring *keyring)
Decrements refcount and finalizes if it reaches zero.
void * _dbus_list_pop_first(DBusList **list)
Removes the first value in the list and returns it.
void _dbus_list_clear(DBusList **list)
Frees all links in the list and sets the list head to NULL.
dbus_bool_t _dbus_list_append(DBusList **list, void *data)
Appends a value to the list.
#define NULL
A null pointer, defined appropriately for C or C++.
#define TRUE
Expands to "1".
#define FALSE
Expands to "0".
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
void * dbus_malloc0(size_t bytes)
Allocates the given number of bytes, as with standard malloc(), but all bytes are initialized to zero...
void dbus_free_string_array(char **str_array)
Frees a NULL-terminated array of strings.
#define DBUS_VERSION_STRING
The COMPILE TIME version of libdbus, as a string "X.Y.Z".
#define DBUS_ERROR_NO_MEMORY
There was not enough memory to complete an operation.
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_hex_decode(const DBusString *source, int start, int *end_return, DBusString *dest, int insert_at)
Decodes a string from hex encoding.
dbus_bool_t _dbus_string_append(DBusString *str, const char *buffer)
Appends a nul-terminated C-style string to a DBusString.
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
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...
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_string_append_int(DBusString *str, long value)
Appends an integer to a DBusString.
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).
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...
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.
dbus_bool_t _dbus_string_find_blank(const DBusString *str, int start, int *found)
Finds a blank (space or tab) in the string.
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init().
void _dbus_string_delete(DBusString *str, int start, int len)
Deletes a segment of a DBusString with length len starting at start.
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_string_zero(DBusString *str)
Clears all allocated bytes in the string to zero.
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.
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.
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.
dbus_bool_t _dbus_string_append_printf(DBusString *str, const char *format,...)
Appends a printf-style formatted string to the DBusString.
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_string_equal(const DBusString *a, const DBusString *b)
Tests two DBusString for equality.
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.
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.
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_credentials_add_from_user(DBusCredentials *credentials, const DBusString *username)
Adds the credentials corresponding to the given username.
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_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
"Subclass" of DBusAuth for client side
DBusList * mechs_to_try
Mechanisms we got from the server that we're going to try using.
DBusAuth base
Parent class.
DBusString guid_from_server
GUID received from server.
Mapping from command name to enum.
DBusAuthCommand command
Corresponding enum.
const char * name
Name of the command.
Virtual table representing a particular auth mechanism.
const char * mechanism
Name of the mechanism.
DBusAuthDataFunction server_data_func
Function on server side for DATA.
DBusAuthDataFunction client_data_func
Function on client side for DATA.
DBusInitialResponseFunction client_initial_response_func
Function on client side to handle initial response.
DBusAuthEncodeFunction server_encode_func
Function on server side to encode.
DBusAuthShutdownFunction server_shutdown_func
Function on server side to shut down.
DBusAuthDecodeFunction client_decode_func
Function on client side for decode.
DBusAuthDecodeFunction server_decode_func
Function on server side to decode.
DBusAuthShutdownFunction client_shutdown_func
Function on client side for shutdown.
DBusAuthEncodeFunction client_encode_func
Function on client side for encode.
"Subclass" of DBusAuth for server side.
int max_failures
Number of times we reject before disconnect.
DBusString guid
Our globally unique ID in hex encoding.
DBusAuth base
Parent class.
int failures
Number of times client has been rejected.
Information about a auth state.
DBusAuthStateFunction handler
State function for this state.
const char * name
Name of the state.
Internal members of DBusAuth.
unsigned int already_got_mechanisms
Client already got mech list.
const DBusAuthMechanismHandler * mech
Current auth mechanism.
char ** allowed_mechs
Mechanisms we're allowed to use, or NULL if we can use any.
unsigned int needed_memory
We needed memory to continue since last successful getting something done.
int cookie_id
ID of cookie to use.
const DBusAuthStateData * state
Current protocol state.
DBusString challenge
Challenge sent to client.
DBusCredentials * desired_identity
Identity client has requested.
unsigned int unix_fd_possible
This side could do unix fd passing.
const char * side
Client or server.
DBusString identity
Current identity we're authorizing as.
DBusString incoming
Incoming data buffer.
int refcount
reference count
unsigned int already_asked_for_initial_response
Already sent a blank challenge to get an initial response.
DBusKeyring * keyring
Keyring for cookie mechanism.
DBusString outgoing
Outgoing data buffer.
DBusCredentials * credentials
Credentials read from socket.
DBusString context
Cookie scope.
unsigned int unix_fd_negotiated
Unix fd was successfully negotiated.
unsigned int buffer_outstanding
Buffer is "checked out" for reading data into.
DBusCredentials * authorized_identity
Credentials that are authorized.
Object representing an exception.
const char * message
public error message field
Internals of DBusKeyring.
void * data
Data stored at this element.