X-Git-Url: http://andersk.mit.edu/gitweb/gssapi-openssh.git/blobdiff_plain/1e608e420beaca67ca6bc6bef308f9f9f6132a66..97f0f2cce4eeef89047da2228a6bea6274065f1e:/openssh/channels.h diff --git a/openssh/channels.h b/openssh/channels.h index 707d9a9..11ebb7b 100644 --- a/openssh/channels.h +++ b/openssh/channels.h @@ -1,5 +1,3 @@ -/* $OpenBSD: channels.h,v 1.65 2002/03/04 17:27:39 stevesk Exp $ */ - /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland @@ -12,7 +10,7 @@ * called by a name other than "ssh" or "Secure Shell". */ /* - * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl. All rights reserved. + * Copyright (c) 1999, 2000, 2001 Markus Friedl. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -34,6 +32,7 @@ * (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 1.51 2001/11/07 22:53:21 markus Exp $"); */ #ifndef CHANNEL_H #define CHANNEL_H @@ -69,8 +68,8 @@ struct Channel { int type; /* channel type/state */ int self; /* my own channel identifier */ int remote_id; /* channel identifier for remote peer */ - u_int istate; /* input from channel (state of receive half) */ - u_int ostate; /* output to channel (state of transmit half) */ + int istate; /* input from channel (state of receive half) */ + int ostate; /* output to channel (state of transmit half) */ int flags; /* close sent/rcvd */ int rfd; /* read fd */ int wfd; /* write fd */ @@ -97,12 +96,13 @@ struct Channel { int local_consumed; int local_maxpacket; int extended_usage; - int single_connection; char *ctype; /* type */ /* callback */ - channel_callback_fn *confirm; + channel_callback_fn *cb_fn; + void *cb_arg; + int cb_event; channel_callback_fn *detach_user; /* filter */ @@ -114,24 +114,24 @@ struct Channel { #define CHAN_EXTENDED_WRITE 2 /* default window/packet sizes for tcp/x11-fwd-channel */ -#define CHAN_SES_PACKET_DEFAULT (32*1024) -#define CHAN_SES_WINDOW_DEFAULT (4*CHAN_SES_PACKET_DEFAULT) -#define CHAN_TCP_PACKET_DEFAULT (32*1024) -#define CHAN_TCP_WINDOW_DEFAULT (4*CHAN_TCP_PACKET_DEFAULT) -#define CHAN_X11_PACKET_DEFAULT (16*1024) -#define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT) +#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) /* possible input states */ -#define CHAN_INPUT_OPEN 0 -#define CHAN_INPUT_WAIT_DRAIN 1 -#define CHAN_INPUT_WAIT_OCLOSE 2 -#define CHAN_INPUT_CLOSED 3 +#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 0 -#define CHAN_OUTPUT_WAIT_DRAIN 1 -#define CHAN_OUTPUT_WAIT_IEOF 2 -#define CHAN_OUTPUT_CLOSED 3 +#define CHAN_OUTPUT_OPEN 0x10 +#define CHAN_OUTPUT_WAIT_DRAIN 0x20 +#define CHAN_OUTPUT_WAIT_IEOF 0x40 +#define CHAN_OUTPUT_CLOSED 0x80 #define CHAN_CLOSE_SENT 0x01 #define CHAN_CLOSE_RCVD 0x02 @@ -140,31 +140,33 @@ struct Channel { Channel *channel_lookup(int); Channel *channel_new(char *, int, int, int, int, int, int, int, char *, int); -void channel_set_fds(int, int, int, int, int, int, u_int); +void channel_set_fds(int, int, int, int, int, int); void channel_free(Channel *); void channel_free_all(void); void channel_stop_listening(void); void channel_send_open(int); +void channel_request(int, char *, int); void channel_request_start(int, char *, int); +void channel_register_callback(int, int mtype, channel_callback_fn *, void *); void channel_register_cleanup(int, channel_callback_fn *); -void channel_register_confirm(int, channel_callback_fn *); void channel_register_filter(int, channel_filter_fn *); void channel_cancel_cleanup(int); int channel_close_fd(int *); /* protocol handler */ -void channel_input_close(int, u_int32_t, void *); -void channel_input_close_confirmation(int, u_int32_t, void *); -void channel_input_data(int, u_int32_t, void *); -void channel_input_extended_data(int, u_int32_t, void *); -void channel_input_ieof(int, u_int32_t, void *); -void channel_input_oclose(int, u_int32_t, void *); -void channel_input_open_confirmation(int, u_int32_t, void *); -void channel_input_open_failure(int, u_int32_t, void *); -void channel_input_port_open(int, u_int32_t, void *); -void channel_input_window_adjust(int, u_int32_t, void *); +void channel_input_channel_request(int, int, void *); +void channel_input_close(int, int, void *); +void channel_input_close_confirmation(int, int, void *); +void channel_input_data(int, int, void *); +void channel_input_extended_data(int, int, void *); +void channel_input_ieof(int, int, void *); +void channel_input_oclose(int, int, void *); +void channel_input_open_confirmation(int, int, void *); +void channel_input_open_failure(int, int, void *); +void channel_input_port_open(int, int, void *); +void channel_input_window_adjust(int, int, void *); /* file descriptor handling (read/write) */ @@ -187,16 +189,20 @@ void channel_input_port_forward_request(int, int); int channel_connect_to(const char *, u_short); int channel_connect_by_listen_address(u_short); void channel_request_remote_forwarding(u_short, const char *, u_short); -int channel_setup_local_fwd_listener(u_short, const char *, u_short, int); -int channel_setup_remote_fwd_listener(const char *, u_short, int); +int channel_request_local_forwarding(u_short, const char *, u_short, int); +int +channel_request_forwarding(const char *, u_short, const char *, u_short, int, + int); /* x11 forwarding */ int x11_connect_display(void); -int x11_create_display_inet(int, int, int); -void x11_input_open(int, u_int32_t, void *); +char *x11_create_display(int); +char *x11_create_display_inet(int, int); +void x11_input_open(int, int, void *); +void x11_request_forwarding(void); void x11_request_forwarding_with_spoofing(int, const char *, const char *); -void deny_input_open(int, u_int32_t, void *); +void deny_input_open(int, int, void *); /* agent forwarding */ @@ -204,21 +210,25 @@ void auth_request_forwarding(void); char *auth_get_socket_name(void); void auth_sock_cleanup_proc(void *); int auth_input_request_forwarding(struct passwd *); -void auth_input_open_request(int, u_int32_t, void *); +void auth_input_open_request(int, int, void *); /* channel close */ int chan_is_dead(Channel *, int); void chan_mark_dead(Channel *); +void chan_init_iostates(Channel *); +void chan_init(void); -/* channel events */ +typedef void chan_event_fn(Channel *); -void chan_rcvd_oclose(Channel *); -void chan_read_failed(Channel *); -void chan_ibuf_empty(Channel *); +/* for the input state */ +extern chan_event_fn *chan_rcvd_oclose; +extern chan_event_fn *chan_read_failed; +extern chan_event_fn *chan_ibuf_empty; -void chan_rcvd_ieof(Channel *); -void chan_write_failed(Channel *); -void chan_obuf_empty(Channel *); +/* for the output state */ +extern chan_event_fn *chan_rcvd_ieof; +extern chan_event_fn *chan_write_failed; +extern chan_event_fn *chan_obuf_empty; #endif