X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/418e724c57fa27927e6400edae33a3490e23b163..436c347c5c743689757f5e6f07928caf8e9ed16f:/channels.h diff --git a/channels.h b/channels.h index 89e48009..7cb0c367 100644 --- a/channels.h +++ b/channels.h @@ -10,7 +10,7 @@ * called by a name other than "ssh" or "Secure Shell". */ /* - * Copyright (c) 1999, 2000, 2001 Markus Friedl. All rights reserved. + * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -32,7 +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 1.50 2001/10/10 22:18:47 markus Exp $"); */ +/* RCSID("$OpenBSD: channels.h,v 1.63 2002/02/05 14:32:55 markus Exp $"); */ #ifndef CHANNEL_H #define CHANNEL_H @@ -56,7 +56,7 @@ #define SSH_CHANNEL_ZOMBIE 14 /* Almost dead. */ #define SSH_CHANNEL_MAX_TYPE 15 -#define SSH_CHANNEL_PATH_LEN 30 +#define SSH_CHANNEL_PATH_LEN 256 struct Channel; typedef struct Channel Channel; @@ -68,8 +68,8 @@ struct Channel { int type; /* channel type/state */ int self; /* my own channel identifier */ int remote_id; /* channel identifier for remote peer */ - int istate; /* input from channel (state of receive half) */ - int ostate; /* output to channel (state of transmit half) */ + u_int istate; /* input from channel (state of receive half) */ + u_int ostate; /* output to channel (state of transmit half) */ int flags; /* close sent/rcvd */ int rfd; /* read fd */ int wfd; /* write fd */ @@ -96,13 +96,12 @@ struct Channel { int local_consumed; int local_maxpacket; int extended_usage; + int single_connection; char *ctype; /* type */ /* callback */ - channel_callback_fn *cb_fn; - void *cb_arg; - int cb_event; + channel_callback_fn *confirm; channel_callback_fn *detach_user; /* filter */ @@ -122,16 +121,16 @@ struct Channel { #define CHAN_X11_PACKET_DEFAULT (CHAN_X11_WINDOW_DEFAULT/2) /* 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 +#define CHAN_INPUT_OPEN 0 +#define CHAN_INPUT_WAIT_DRAIN 1 +#define CHAN_INPUT_WAIT_OCLOSE 2 +#define CHAN_INPUT_CLOSED 3 /* 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 +#define CHAN_OUTPUT_OPEN 0 +#define CHAN_OUTPUT_WAIT_DRAIN 1 +#define CHAN_OUTPUT_WAIT_IEOF 2 +#define CHAN_OUTPUT_CLOSED 3 #define CHAN_CLOSE_SENT 0x01 #define CHAN_CLOSE_RCVD 0x02 @@ -146,27 +145,25 @@ 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_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 *); +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 *); /* file descriptor handling (read/write) */ @@ -189,20 +186,16 @@ 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_request_local_forwarding(u_short, const char *, u_short, int); -int -channel_request_forwarding(const char *, u_short, const char *, u_short, int, - int); +int channel_setup_local_fwd_listener(u_short, const char *, u_short, int); +int channel_setup_remote_fwd_listener(const char *, u_short, int); /* x11 forwarding */ int x11_connect_display(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); +int x11_create_display_inet(int, int, int); +void x11_input_open(int, u_int32_t, void *); void x11_request_forwarding_with_spoofing(int, const char *, const char *); -void deny_input_open(int, int, void *); +void deny_input_open(int, u_int32_t, void *); /* agent forwarding */ @@ -210,25 +203,21 @@ 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, int, void *); +void auth_input_open_request(int, u_int32_t, void *); /* channel close */ int chan_is_dead(Channel *, int); void chan_mark_dead(Channel *); -void chan_init_iostates(Channel *); -void chan_init(void); -typedef void chan_event_fn(Channel *); +/* channel events */ -/* 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_oclose(Channel *); +void chan_read_failed(Channel *); +void chan_ibuf_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; +void chan_rcvd_ieof(Channel *); +void chan_write_failed(Channel *); +void chan_obuf_empty(Channel *); #endif