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qubes-linux-utils/qrexec-lib/qrexec.h

102 lines
2.8 KiB

/*
* The Qubes OS Project, http://www.qubes-os.org
*
* Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/* See also http://wiki.qubes-os.org/trac/wiki/Qrexec */
#include <stdint.h>
#define QREXEC_DAEMON_SOCKET_DIR "/var/run/qubes"
#define MAX_FDS 256
#define MAX_DATA_CHUNK 4096
#define REXEC_PORT 512
#define QREXEC_AGENT_TRIGGER_PATH "/var/run/qubes/qrexec-agent"
#define QREXEC_AGENT_FDPASS_PATH "/var/run/qubes/qrexec-agent-fdpass"
#define MEMINFO_WRITER_PIDFILE "/var/run/meminfo-writer.pid"
#define QUBES_RPC_MULTIPLEXER_PATH "/usr/lib/qubes/qubes-rpc-multiplexer"
#define QUBES_RPC_MAGIC_CMD "QUBESRPC"
/* messages sent over control vchan between daemon(dom0) and agent(vm). The
* same are used between client(dom0) and daemon(dom0) */
enum {
/* daemon->agent messages */
/* start process in VM and pass its stdin/out/err to dom0 */
MSG_EXEC_CMDLINE = 0x200,
/* start process in VM discarding its stdin/out/err (connect to /dev/null) */
MSG_JUST_EXEC,
/* connect to existing process in VM to receive its stdin/out/err
* struct service_params passed as data */
MSG_SERVICE_CONNECT,
/* refuse to start a service (denied by policy, invalid parameteres etc)
* struct service_params passed as data to identify which service call was
* refused */
MSG_SERVICE_REFUSED,
/* agent->daemon messages */
/* call Qubes RPC service
* struct trigger_service_params passed as data */
MSG_TRIGGER_SERVICE = 0x210,
};
/* daemon<->agent and daemon->client */
struct server_header {
uint32_t type;
uint32_t connect_domain;
uint32_t connect_port;
uint32_t len;
};
/* client->daemon */
struct client_header {
uint32_t type;
uint32_t len;
};
struct service_params {
char ident[32];
};
struct trigger_service_params {
char service_name[64];
char target_domain[32];
struct service_params process_fds;
};
/* data vchan client<->agent, separate for each VM process */
enum {
/* stdin dom0->VM */
MSG_DATA_STDIN = 0x190,
/* stdout VM->dom0 */
MSG_DATA_STDOUT,
/* stderr VM->dom0 */
MSG_DATA_STDERR,
/* VM process exit code VM->dom0 */
MSG_DATA_EXIT_CODE,
};
struct data_header {
uint32_t type;
uint32_t len;
};