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qrexec: describe msg types in header file

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This commit is contained in:
Marek Marczykowski 2012-05-24 12:11:03 +02:00
parent 1e0117ca50
commit 05123c09f2
1 changed files with 28 additions and 0 deletions
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28
qrexec/qrexec.h
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@ -19,6 +19,8 @@
*
*/
/* See also http://wiki.qubes-os.org/trac/wiki/Qrexec */
#define QREXEC_DAEMON_SOCKET_DIR "/var/run/qubes"
#define MAX_FDS 256
#define MAX_DATA_CHUNK 4096
@ -30,26 +32,52 @@
#define MEMINFO_WRITER_PIDFILE "/var/run/meminfo-writer.pid"
enum {
/* messages from qrexec_client to qrexec_daemon (both in dom0) */
/* start process in VM and pass its stdin/out/err to dom0 */
MSG_CLIENT_TO_SERVER_EXEC_CMDLINE = 0x100,
/* start process in VM discarding its stdin/out/err (connect to /dev/null) */
MSG_CLIENT_TO_SERVER_JUST_EXEC,
/* connect to existing process in VM to receive its stdin/out/err
* struct connect_existing_params passed as data */
MSG_CLIENT_TO_SERVER_CONNECT_EXISTING,
/* messages qrexec_daemon(dom0)->qrexec_agent(VM) */
/* same as MSG_CLIENT_TO_SERVER_CONNECT_EXISTING */
MSG_SERVER_TO_AGENT_CONNECT_EXISTING,
/* same as MSG_CLIENT_TO_SERVER_EXEC_CMDLINE */
MSG_SERVER_TO_AGENT_EXEC_CMDLINE,
/* same as MSG_CLIENT_TO_SERVER_JUST_EXEC */
MSG_SERVER_TO_AGENT_JUST_EXEC,
/* pass data to process stdin */
MSG_SERVER_TO_AGENT_INPUT,
/* detach from process; qrexec_agent should close pipes to process
* stdin/out/err; it's up to the VM child process if it cause its termination */
MSG_SERVER_TO_AGENT_CLIENT_END,
/* flow control, qrexec_daemon->qrexec_agent */
/* suspend reading of named fd from child process */
MSG_XOFF,
/* resume reading of named fd from child process */
MSG_XON,
/* messages qrexec_agent(VM)->qrexec_daemon(dom0) */
/* pass data from process stdout */
MSG_AGENT_TO_SERVER_STDOUT,
/* pass data from process stderr */
MSG_AGENT_TO_SERVER_STDERR,
/* inform that process terminated and pass its exit code; this should be
* send after all data from stdout/err are send */
MSG_AGENT_TO_SERVER_EXIT_CODE,
/* call Qubes RPC service
* struct trigger_connect_params passed as data */
MSG_AGENT_TO_SERVER_TRIGGER_CONNECT_EXISTING,
/* messages qrexec_daemon->qrexec_client (both in dom0) */
/* same as MSG_AGENT_TO_SERVER_STDOUT */
MSG_SERVER_TO_CLIENT_STDOUT,
/* same as MSG_AGENT_TO_SERVER_STDERR */
MSG_SERVER_TO_CLIENT_STDERR,
/* same as MSG_AGENT_TO_SERVER_EXIT_CODE */
MSG_SERVER_TO_CLIENT_EXIT_CODE
};