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9f1d5c33ed
Instead of binding to INADDR_ANY as soon as remote_hosts.cfg exists, only do so if the file actually contains at least one host. Prior to this change, boinc client would bind to INADDR_ANY even if --allow_remote_gui_rpc was *not* given and the remote_hosts.cfg does *not* contain any hosts (but exists). This behavior is not sensible, because in that case no client would be allowed to connect eventually. Furthermore, many distributions ship an example remote_hosts.cfg as part of their boinc client package. And the previous behavior caused boinc client to bind on INADDR_ANY, opening a remotely accessible port per default. To tighten security further, boinc client will now only bind to localhost even if remote-hosts.cfg exists, but there are no remote hosts configured witin that file.
131 lines
3.8 KiB
C++
131 lines
3.8 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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#ifndef BOINC_GUI_RPC_SERVER_H
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#define BOINC_GUI_RPC_SERVER_H
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#include "network.h"
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#include "acct_setup.h"
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// FSM states for auto-update
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#define AU_SS_INIT 0
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// no get_screensaver_mode() yet
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#define AU_SS_GOT 1
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// got a get_screensaver_mode()
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#define AU_SS_QUIT_REQ 2
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// send a QUIT next time
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#define AU_SS_QUIT_SENT 3
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// QUIT sent
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#define AU_MGR_INIT 0
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#define AU_MGR_GOT 1
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#define AU_MGR_QUIT_REQ 2
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#define AU_MGR_QUIT_SENT 3
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#define GUI_RPC_REQ_MSG_SIZE 100000
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class GUI_RPC_CONN {
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public:
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int sock;
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MIOFILE mfout;
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MFILE mout;
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MIOFILE mfin;
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XML_PARSER xp;
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char request_msg[GUI_RPC_REQ_MSG_SIZE+1];
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int request_nbytes;
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char nonce[256];
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bool auth_needed;
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// if true, don't allow operations other than authentication
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bool got_auth1;
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bool got_auth2;
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// keep track of whether we've got the 2 authentication msgs;
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// don't accept more than one of each (to prevent DoS)
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bool sent_unauthorized;
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// we've send one <unauthorized>.
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// On next auth failure, disconnect
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bool is_local;
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// connection is from local host
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VERSION_INFO client_api;
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std::string client_name;
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bool quit_flag;
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int au_ss_state;
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int au_mgr_state;
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GUI_HTTP gui_http;
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GET_PROJECT_CONFIG_OP get_project_config_op;
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LOOKUP_ACCOUNT_OP lookup_account_op;
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CREATE_ACCOUNT_OP create_account_op;
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private:
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bool notice_refresh;
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// next time we get a get_notices RPC,
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// send a -1 seqno, then the whole list
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public:
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void set_notice_refresh() {
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notice_refresh = true;
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}
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void clear_notice_refresh() {
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notice_refresh = false;
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}
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bool get_notice_refresh() {
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return notice_refresh;
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}
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GUI_RPC_CONN(int);
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~GUI_RPC_CONN();
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int handle_rpc();
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void handle_auth1(MIOFILE&);
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int handle_auth2(char*, MIOFILE&);
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void http_error(const char* msg);
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void handle_get();
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};
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// authentication for GUI RPCs:
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// 1) if a host-list file is found, accept only from those hosts
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// 2) if a password file file is found, ALSO demand password auth
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class GUI_RPC_CONN_SET {
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std::vector<GUI_RPC_CONN*> gui_rpcs;
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std::vector<sockaddr_storage> allowed_remote_ip_addresses;
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int get_allowed_hosts();
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void get_password();
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int insert(GUI_RPC_CONN*);
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bool check_allowed_list(sockaddr_storage& ip_addr);
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bool remote_hosts_configured;
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public:
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int lsock;
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double time_of_last_rpc_needing_network;
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// time of the last RPC that needs network access to handle
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GUI_RPC_CONN_SET();
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char password[256];
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void get_fdset(FDSET_GROUP&, FDSET_GROUP&);
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void got_select(FDSET_GROUP&);
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int init_tcp(bool last_time);
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int init_unix_domain();
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void close();
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bool recent_rpc_needs_network(double interval);
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void send_quits();
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bool quits_sent();
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bool poll();
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void set_notice_refresh() {
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for (unsigned int i=0; i<gui_rpcs.size(); i++) {
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gui_rpcs[i]->set_notice_refresh();
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}
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}
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};
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#endif
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