125 lines
3.7 KiB
Protocol Buffer
125 lines
3.7 KiB
Protocol Buffer
syntax = "proto3";
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/*
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* Client message to the server.
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* Messages on the wire are prefixed with a 16-bit size in network byte order.
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*/
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message ClientMessage {
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oneof type {
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AcceptMessage accept_msg = 1;
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RejectMessage reject_msg = 2;
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ExitMessage exit_msg = 3;
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RestartMessage restart_msg = 4;
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AlertMessage alert_msg = 5;
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IoBuffer ttyin_buf = 6;
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IoBuffer ttyout_buf = 7;
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IoBuffer stdin_buf = 8;
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IoBuffer stdout_buf = 9;
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IoBuffer stderr_buf = 10;
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ChangeWindowSize winsize_event = 11;
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CommandSuspend suspend_event = 12;
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}
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}
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/* Equivalent of POSIX struct timespec */
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message TimeSpec {
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int64 tv_sec = 1; /* seconds */
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int32 tv_nsec = 2; /* nanoseconds */
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}
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/* I/O buffer with keystroke data */
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message IoBuffer {
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TimeSpec delay = 1; /* elapsed time since last record (monotonic) */
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bytes data = 2; /* keystroke data */
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}
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/*
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* Key/value pairs, like Privilege Manager struct info.
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* The value may be a number, a string, or a list of strings.
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*/
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message InfoMessage {
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message StringList {
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repeated string strings = 1;
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}
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string key = 1;
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oneof value {
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int64 numval = 2;
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string strval = 3;
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StringList strlistval = 4;
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}
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}
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/*
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* Event log data for command accepted by the policy.
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*/
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message AcceptMessage {
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TimeSpec submit_time = 1; /* time when command was submitted */
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repeated InfoMessage info_msgs = 2; /* key,value event log data */
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bool expect_iobufs = 3; /* true if I/O logging is enabled */
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}
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/*
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* Event log data for command rejected by the policy.
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*/
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message RejectMessage {
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TimeSpec submit_time = 1; /* time when command was submitted */
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string reason = 2; /* reason commamd was rejected */
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repeated InfoMessage info_msgs = 3; /* key,value event log data */
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}
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/* Message sent by client when command exits. */
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/* Might revisit runtime and use end_time instead */
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message ExitMessage {
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TimeSpec run_time = 1; /* total elapsed run time (monotonic) */
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int32 exit_value = 2; /* 0-255 */
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bool dumped_core = 3; /* true if command dumped core */
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string signal = 4; /* signal name if killed by signal */
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string error = 5; /* if killed due to other error */
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}
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/* Alert message, policy module-specific. */
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message AlertMessage {
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TimeSpec alert_time = 1; /* time alert message ocurred */
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string reason = 2; /* description of policy violation */
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}
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/* Used to restart an existing I/O log on the server. */
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message RestartMessage {
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string log_id = 1; /* ID of log being restarted */
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TimeSpec resume_point = 2; /* resume point in ellaped time (monotonic) */
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}
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/* Window size change event. */
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message ChangeWindowSize {
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TimeSpec delay = 1; /* elapsed time since last record (monotonic) */
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int32 rows = 2; /* new number of rows */
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int32 cols = 3; /* new number of columns */
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}
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/* Command suspend/resume event. */
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message CommandSuspend {
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TimeSpec delay = 1; /* elapsed time since last record (monotonic) */
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string signal = 2; /* signal that caused the suspend/resume */
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}
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/*
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* Server messages to the client.
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* Messages on the wire are prefixed with a 16-bit size in network byte order.
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*/
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message ServerMessage {
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oneof type {
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ServerHello hello = 1; /* server hello message */
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TimeSpec commit_point = 2; /* cumulative time of records stored */
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string log_id = 3; /* ID of new I/O log (AcceptMessage ACK) */
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string error = 4; /* error message from server (restartable) */
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string abort = 5; /* abort message from server (kill session) */
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}
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}
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/* Hello message from server when client connects. */
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message ServerHello {
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string server_id = 1; /* free-form server description */
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string redirect = 2; /* optional redirect to other server if busy */
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repeated string servers = 3; /* optional list of known audit servers */
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}
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