diff options
Diffstat (limited to 'crypto/openssh/PROTOCOL.mux')
| -rw-r--r-- | crypto/openssh/PROTOCOL.mux | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/crypto/openssh/PROTOCOL.mux b/crypto/openssh/PROTOCOL.mux index 2a5817b..9ad2566 100644 --- a/crypto/openssh/PROTOCOL.mux +++ b/crypto/openssh/PROTOCOL.mux @@ -73,6 +73,13 @@ non-multiplexed ssh(1) connection. Two additional cases that the client must cope with are it receiving a signal itself and the server disconnecting without sending an exit message. +A master may also send a MUX_S_TTY_ALLOC_FAIL before MUX_S_EXIT_MESSAGE +if remote TTY allocation was unsuccessful. The client may use this to +return its local tty to "cooked" mode. + + uint32 MUX_S_TTY_ALLOC_FAIL + uint32 session id + 3. Health checks The client may request a health check/PID report from a server: @@ -149,10 +156,21 @@ The client then sends its standard input and output file descriptors The contents of "reserved" are currently ignored. -A server may reply with a MUX_S_SESSION_OPEED, a MUX_S_PERMISSION_DENIED +A server may reply with a MUX_S_SESSION_OPENED, a MUX_S_PERMISSION_DENIED or a MUX_S_FAILURE. -8. Status messages +8. Requesting shutdown of mux listener + +A client may request the master to stop accepting new multiplexing requests +and remove its listener socket. + + uint32 MUX_C_STOP_LISTENING + uint32 request id + +A server may reply with a MUX_S_OK, a MUX_S_PERMISSION_DENIED or a +MUX_S_FAILURE. + +9. Status messages The MUX_S_OK message is empty: @@ -169,7 +187,7 @@ The MUX_S_PERMISSION_DENIED and MUX_S_FAILURE include a reason: uint32 client request id string reason -9. Protocol numbers +10. Protocol numbers #define MUX_MSG_HELLO 0x00000001 #define MUX_C_NEW_SESSION 0x10000002 @@ -178,6 +196,7 @@ The MUX_S_PERMISSION_DENIED and MUX_S_FAILURE include a reason: #define MUX_C_OPEN_FWD 0x10000006 #define MUX_C_CLOSE_FWD 0x10000007 #define MUX_C_NEW_STDIO_FWD 0x10000008 +#define MUX_C_STOP_LISTENING 0x10000009 #define MUX_S_OK 0x80000001 #define MUX_S_PERMISSION_DENIED 0x80000002 #define MUX_S_FAILURE 0x80000003 @@ -185,6 +204,7 @@ The MUX_S_PERMISSION_DENIED and MUX_S_FAILURE include a reason: #define MUX_S_ALIVE 0x80000005 #define MUX_S_SESSION_OPENED 0x80000006 #define MUX_S_REMOTE_PORT 0x80000007 +#define MUX_S_TTY_ALLOC_FAIL 0x80000008 #define MUX_FWD_LOCAL 1 #define MUX_FWD_REMOTE 2 @@ -192,12 +212,10 @@ The MUX_S_PERMISSION_DENIED and MUX_S_FAILURE include a reason: XXX TODO XXX extended status (e.g. report open channels / forwards) -XXX graceful close (delete listening socket, but keep existing sessions active) XXX lock (maybe) XXX watch in/out traffic (pre/post crypto) XXX inject packet (what about replies) XXX server->client error/warning notifications -XXX port0 rfwd (need custom response message) XXX send signals via mux -$OpenBSD: PROTOCOL.mux,v 1.4 2011/01/31 21:42:15 djm Exp $ +$OpenBSD: PROTOCOL.mux,v 1.7 2011/05/08 12:52:01 djm Exp $ |
