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syntax = "proto3";
/*
* Client message to the server. Messages on the wire are
* prefixed with a 32-bit size in network byte order.
*/
message ClientMessage {
oneof type {
AcceptMessage accept_msg = 1;
RejectMessage reject_msg = 2;
ExitMessage exit_msg = 3;
RestartMessage restart_msg = 4;
AlertMessage alert_msg = 5;
IoBuffer ttyin_buf = 6;
IoBuffer ttyout_buf = 7;
IoBuffer stdin_buf = 8;
IoBuffer stdout_buf = 9;
IoBuffer stderr_buf = 10;
ChangeWindowSize winsize_event = 11;
CommandSuspend suspend_event = 12;
ClientHello hello_msg = 13;
}
}
/* Equivalent of POSIX struct timespec */
message TimeSpec {
int64 tv_sec = 1; /* seconds */
int32 tv_nsec = 2; /* nanoseconds */
}
/* I/O buffer with keystroke data */
message IoBuffer {
TimeSpec delay = 1; /* elapsed time since last record */
bytes data = 2; /* keystroke data */
}
/*
* Key/value pairs, like Privilege Manager struct info.
* The value may be a number, a string, or a list of strings.
*/
message InfoMessage {
message StringList {
repeated string strings = 1;
}
message NumberList {
repeated int64 numbers = 1;
}
string key = 1;
oneof value {
int64 numval = 2;
string strval = 3;
StringList strlistval = 4;
NumberList numlistval = 5;
}
}
/*
* Event log data for command accepted by the policy.
*/
message AcceptMessage {
TimeSpec submit_time = 1; /* when command was submitted */
repeated InfoMessage info_msgs = 2; /* key,value event log data */
bool expect_iobufs = 3; /* true if I/O logging enabled */
}
/*
* Event log data for command rejected by the policy.
*/
message RejectMessage {
TimeSpec submit_time = 1; /* when command was submitted */
string reason = 2; /* reason command was rejected */
repeated InfoMessage info_msgs = 3; /* key,value event log data */
}
/* Message sent by client when command exits. */
/* Might revisit runtime and use end_time instead */
message ExitMessage {
TimeSpec run_time = 1; /* total elapsed run time */
int32 exit_value = 2; /* 0-255 */
bool dumped_core = 3; /* true if command dumped core */
string signal = 4; /* signal name if killed by signal */
string error = 5; /* if killed due to other error */
}
/* Alert message, policy module-specific. */
message AlertMessage {
TimeSpec alert_time = 1; /* time alert message occurred */
string reason = 2; /* policy alert error string */
repeated InfoMessage info_msgs = 3; /* optional key,value event log data */
}
/* Used to restart an existing I/O log on the server. */
message RestartMessage {
string log_id = 1; /* ID of log being restarted */
TimeSpec resume_point = 2; /* resume point (elapsed time) */
}
/* Window size change event. */
message ChangeWindowSize {
TimeSpec delay = 1; /* elapsed time since last record */
int32 rows = 2; /* new number of rows */
int32 cols = 3; /* new number of columns */
}
/* Command suspend/resume event. */
message CommandSuspend {
TimeSpec delay = 1; /* elapsed time since last record */
string signal = 2; /* signal that caused suspend/resume */
}
/* Hello message from client when connecting to server. */
message ClientHello {
string client_id = 1; /* free-form client description */
}
/*
* Server messages to the client. Messages on the wire are
* prefixed with a 32-bit size in network byte order.
*/
message ServerMessage {
oneof type {
ServerHello hello = 1; /* server hello message */
TimeSpec commit_point = 2; /* cumulative time of records stored */
string log_id = 3; /* ID of server-side I/O log */
string error = 4; /* error message from server */
string abort = 5; /* abort message, kill command */
}
}
/* Hello message from server when client connects. */
message ServerHello {
string server_id = 1; /* free-form server description */
string redirect = 2; /* optional redirect if busy */
repeated string servers = 3; /* optional list of known servers */
bool subcommands = 4; /* flag: server supports sub-commands */
}
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