diff options
Diffstat (limited to 'crypto/openssh/channels.h')
| -rw-r--r-- | crypto/openssh/channels.h | 57 |
1 files changed, 54 insertions, 3 deletions
diff --git a/crypto/openssh/channels.h b/crypto/openssh/channels.h index 4cafdb9..c0d6019 100644 --- a/crypto/openssh/channels.h +++ b/crypto/openssh/channels.h @@ -1,4 +1,38 @@ -/* RCSID("$Id: channels.h,v 1.13 2000/05/30 17:23:37 markus Exp $"); */ +/* + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * As far as I am concerned, the code I have written for this software + * can be used freely for any purpose. Any derived versions of this + * software must be clearly marked as such, and if the derived work is + * incompatible with the protocol description in the RFC file, it must be + * called by a name other than "ssh" or "Secure Shell". + */ +/* + * Copyright (c) 2000 Markus Friedl. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +/* RCSID("$OpenBSD: channels.h,v 1.19 2000/09/07 21:13:37 markus Exp $"); */ #ifndef CHANNELS_H #define CHANNELS_H @@ -21,9 +55,13 @@ * Data structure for channel data. This is iniailized in channel_allocate * and cleared in channel_free. */ +struct Channel; +typedef struct Channel Channel; + typedef void channel_callback_fn(int id, void *arg); +typedef int channel_filter_fn(struct Channel *c, char *buf, int len); -typedef struct Channel { +struct Channel { int type; /* channel type/state */ int self; /* my own channel identifier */ int remote_id; /* channel identifier for remote peer */ @@ -61,18 +99,31 @@ typedef struct Channel { void *cb_arg; int cb_event; channel_callback_fn *dettach_user; -} Channel; + + /* filter */ + channel_filter_fn *input_filter; +}; #define CHAN_EXTENDED_IGNORE 0 #define CHAN_EXTENDED_READ 1 #define CHAN_EXTENDED_WRITE 2 +/* default window/packet sizes for tcp/x11-fwd-channel */ +#define CHAN_SES_WINDOW_DEFAULT (32*1024) +#define CHAN_SES_PACKET_DEFAULT (CHAN_SES_WINDOW_DEFAULT/2) +#define CHAN_TCP_WINDOW_DEFAULT (32*1024) +#define CHAN_TCP_PACKET_DEFAULT (CHAN_TCP_WINDOW_DEFAULT/2) +#define CHAN_X11_WINDOW_DEFAULT (4*1024) +#define CHAN_X11_PACKET_DEFAULT (CHAN_X11_WINDOW_DEFAULT/2) + + void channel_set_fds(int id, int rfd, int wfd, int efd, int extusage); void channel_open(int id); void channel_request(int id, char *service, int wantconfirm); void channel_request_start(int id, char *service, int wantconfirm); void channel_register_callback(int id, int mtype, channel_callback_fn *fn, void *arg); void channel_register_cleanup(int id, channel_callback_fn *fn); +void channel_register_filter(int id, channel_filter_fn *fn); void channel_cancel_cleanup(int id); Channel *channel_lookup(int id); |
