6 /* Definitions for channel types. */
7 #define SSH_CHANNEL_FREE 0 /* This channel is free (unused). */
8 #define SSH_CHANNEL_X11_LISTENER 1 /* Listening for inet X11 conn. */
9 #define SSH_CHANNEL_PORT_LISTENER 2 /* Listening on a port. */
10 #define SSH_CHANNEL_OPENING 3 /* waiting for confirmation */
11 #define SSH_CHANNEL_OPEN 4 /* normal open two-way channel */
12 #define SSH_CHANNEL_CLOSED 5 /* waiting for close confirmation */
13 /* SSH_CHANNEL_AUTH_FD 6 authentication fd */
14 #define SSH_CHANNEL_AUTH_SOCKET 7 /* authentication socket */
15 /* SSH_CHANNEL_AUTH_SOCKET_FD 8 connection to auth socket */
16 #define SSH_CHANNEL_X11_OPEN 9 /* reading first X11 packet */
17 #define SSH_CHANNEL_INPUT_DRAINING 10 /* sending remaining data to conn */
18 #define SSH_CHANNEL_OUTPUT_DRAINING 11 /* sending remaining data to app */
20 /* Data structure for channel data. This is iniailized in channel_allocate
21 and cleared in channel_free. */
23 typedef struct Channel
25 int type; /* channel type/state */
26 int self; /* my own channel identifier */
27 int remote_id; /* channel identifier for remote peer */
28 /* peer can be reached over encrypted connection, via packet-sent */
29 int istate; /* input from channel (state of receive half) */
30 int ostate; /* output to channel (state of transmit half) */
31 int sock; /* data socket, linked to this channel */
32 Buffer input; /* data read from socket, to be sent over encrypted connection */
33 Buffer output; /* data received over encrypted connection for send on socket */
34 char path[200]; /* path for unix domain sockets, or host name for forwards */
35 int listening_port; /* port being listened for forwards */
36 int host_port; /* remote port to connect for forwards */
37 char *remote_name; /* remote hostname */