| /* RCSID("$Id: nchan.h,v 1.1.1.1 1999/10/27 03:42:44 damien Exp $"); */ |
| |
| #ifndef NCHAN_H |
| #define NCHAN_H |
| |
| /* |
| * SSH Protocol 1.5 aka New Channel Protocol |
| * Thanks to Martina, Axel and everyone who left Erlangen, leaving me bored. |
| * Written by Markus Friedl in October 1999 |
| * |
| * Protocol versions 1.3 and 1.5 differ in the handshake protocol used for the |
| * tear down of channels: |
| * |
| * 1.3: strict request-ack-protocol: |
| * CLOSE -> |
| * <- CLOSE_CONFIRM |
| * |
| * 1.5: uses variations of: |
| * IEOF -> |
| * <- OCLOSE |
| * <- IEOF |
| * OCLOSE -> |
| * i.e. both sides have to close the channel |
| * |
| * See the debugging output from 'ssh -v' and 'sshd -d' of |
| * ssh-1.2.27 as an example. |
| * |
| */ |
| |
| /* ssh-proto-1.5 overloads prot-1.3-message-types */ |
| #define SSH_MSG_CHANNEL_INPUT_EOF SSH_MSG_CHANNEL_CLOSE |
| #define SSH_MSG_CHANNEL_OUTPUT_CLOSE SSH_MSG_CHANNEL_CLOSE_CONFIRMATION |
| |
| /* possible input states */ |
| #define CHAN_INPUT_OPEN 0x01 |
| #define CHAN_INPUT_WAIT_DRAIN 0x02 |
| #define CHAN_INPUT_WAIT_OCLOSE 0x04 |
| #define CHAN_INPUT_CLOSED 0x08 |
| |
| /* possible output states */ |
| #define CHAN_OUTPUT_OPEN 0x10 |
| #define CHAN_OUTPUT_WAIT_DRAIN 0x20 |
| #define CHAN_OUTPUT_WAIT_IEOF 0x40 |
| #define CHAN_OUTPUT_CLOSED 0x80 |
| |
| /* EVENTS for the input state */ |
| void chan_rcvd_oclose(Channel *c); |
| void chan_read_failed(Channel *c); |
| void chan_ibuf_empty(Channel *c); |
| |
| /* EVENTS for the output state */ |
| void chan_rcvd_ieof(Channel *c); |
| void chan_write_failed(Channel *c); |
| void chan_obuf_empty(Channel *c); |
| |
| void chan_init_iostates(Channel *c); |
| #endif |
