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Diff for /src/usr.bin/ssh/channels.h between version 1.31.2.4 and 1.31.2.5

version 1.31.2.4, 2001/11/15 22:51:15 version 1.31.2.5, 2002/03/09 00:20:44
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   /*      $OpenBSD$       */
   
 /*  /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>   * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland   * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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  * called by a name other than "ssh" or "Secure Shell".   * 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   * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions   * modification, are permitted provided that the following conditions
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  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */   */
 /* RCSID("$OpenBSD$"); */  
   
 #ifndef CHANNEL_H  #ifndef CHANNEL_H
 #define CHANNEL_H  #define CHANNEL_H
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         int     type;           /* channel type/state */          int     type;           /* channel type/state */
         int     self;           /* my own channel identifier */          int     self;           /* my own channel identifier */
         int     remote_id;      /* channel identifier for remote peer */          int     remote_id;      /* channel identifier for remote peer */
         int     istate;         /* input from channel (state of receive half) */          u_int   istate;         /* input from channel (state of receive half) */
         int     ostate;         /* output to channel  (state of transmit half) */          u_int   ostate;         /* output to channel  (state of transmit half) */
         int     flags;          /* close sent/rcvd */          int     flags;          /* close sent/rcvd */
         int     rfd;            /* read fd */          int     rfd;            /* read fd */
         int     wfd;            /* write fd */          int     wfd;            /* write fd */
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         int     local_consumed;          int     local_consumed;
         int     local_maxpacket;          int     local_maxpacket;
         int     extended_usage;          int     extended_usage;
           int     single_connection;
   
         char   *ctype;          /* type */          char   *ctype;          /* type */
   
         /* callback */          /* callback */
         channel_callback_fn     *cb_fn;          channel_callback_fn     *confirm;
         void    *cb_arg;  
         int     cb_event;  
         channel_callback_fn     *detach_user;          channel_callback_fn     *detach_user;
   
         /* filter */          /* filter */
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 #define CHAN_EXTENDED_WRITE             2  #define CHAN_EXTENDED_WRITE             2
   
 /* default window/packet sizes for tcp/x11-fwd-channel */  /* default window/packet sizes for tcp/x11-fwd-channel */
 #define CHAN_SES_WINDOW_DEFAULT (32*1024)  #define CHAN_SES_PACKET_DEFAULT (32*1024)
 #define CHAN_SES_PACKET_DEFAULT (CHAN_SES_WINDOW_DEFAULT/2)  #define CHAN_SES_WINDOW_DEFAULT (4*CHAN_SES_PACKET_DEFAULT)
 #define CHAN_TCP_WINDOW_DEFAULT (32*1024)  #define CHAN_TCP_PACKET_DEFAULT (32*1024)
 #define CHAN_TCP_PACKET_DEFAULT (CHAN_TCP_WINDOW_DEFAULT/2)  #define CHAN_TCP_WINDOW_DEFAULT (4*CHAN_TCP_PACKET_DEFAULT)
 #define CHAN_X11_WINDOW_DEFAULT (4*1024)  #define CHAN_X11_PACKET_DEFAULT (16*1024)
 #define CHAN_X11_PACKET_DEFAULT (CHAN_X11_WINDOW_DEFAULT/2)  #define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT)
   
 /* possible input states */  /* possible input states */
 #define CHAN_INPUT_OPEN                 0x01  #define CHAN_INPUT_OPEN                 0
 #define CHAN_INPUT_WAIT_DRAIN           0x02  #define CHAN_INPUT_WAIT_DRAIN           1
 #define CHAN_INPUT_WAIT_OCLOSE          0x04  #define CHAN_INPUT_WAIT_OCLOSE          2
 #define CHAN_INPUT_CLOSED               0x08  #define CHAN_INPUT_CLOSED               3
   
 /* possible output states */  /* possible output states */
 #define CHAN_OUTPUT_OPEN                0x10  #define CHAN_OUTPUT_OPEN                0
 #define CHAN_OUTPUT_WAIT_DRAIN          0x20  #define CHAN_OUTPUT_WAIT_DRAIN          1
 #define CHAN_OUTPUT_WAIT_IEOF           0x40  #define CHAN_OUTPUT_WAIT_IEOF           2
 #define CHAN_OUTPUT_CLOSED              0x80  #define CHAN_OUTPUT_CLOSED              3
   
 #define CHAN_CLOSE_SENT                 0x01  #define CHAN_CLOSE_SENT                 0x01
 #define CHAN_CLOSE_RCVD                 0x02  #define CHAN_CLOSE_RCVD                 0x02
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 Channel *channel_lookup(int);  Channel *channel_lookup(int);
 Channel *channel_new(char *, int, int, int, int, int, int, int, char *, int);  Channel *channel_new(char *, int, int, int, int, int, int, int, char *, int);
 void     channel_set_fds(int, int, int, int, int, int);  void     channel_set_fds(int, int, int, int, int, int, u_int);
 void     channel_free(Channel *);  void     channel_free(Channel *);
 void     channel_free_all(void);  void     channel_free_all(void);
 void     channel_stop_listening(void);  void     channel_stop_listening(void);
   
 void     channel_send_open(int);  void     channel_send_open(int);
 void     channel_request(int, char *, int);  
 void     channel_request_start(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_cleanup(int, channel_callback_fn *);
   void     channel_register_confirm(int, channel_callback_fn *);
 void     channel_register_filter(int, channel_filter_fn *);  void     channel_register_filter(int, channel_filter_fn *);
 void     channel_cancel_cleanup(int);  void     channel_cancel_cleanup(int);
 int      channel_close_fd(int *);  int      channel_close_fd(int *);
   
 /* protocol handler */  /* protocol handler */
   
 void     channel_input_channel_request(int, int, void *);  void     channel_input_close(int, u_int32_t, void *);
 void     channel_input_close(int, int, void *);  void     channel_input_close_confirmation(int, u_int32_t, void *);
 void     channel_input_close_confirmation(int, int, void *);  void     channel_input_data(int, u_int32_t, void *);
 void     channel_input_data(int, int, void *);  void     channel_input_extended_data(int, u_int32_t, void *);
 void     channel_input_extended_data(int, int, void *);  void     channel_input_ieof(int, u_int32_t, void *);
 void     channel_input_ieof(int, int, void *);  void     channel_input_oclose(int, u_int32_t, void *);
 void     channel_input_oclose(int, int, void *);  void     channel_input_open_confirmation(int, u_int32_t, void *);
 void     channel_input_open_confirmation(int, int, void *);  void     channel_input_open_failure(int, u_int32_t, void *);
 void     channel_input_open_failure(int, int, void *);  void     channel_input_port_open(int, u_int32_t, void *);
 void     channel_input_port_open(int, int, void *);  void     channel_input_window_adjust(int, u_int32_t, void *);
 void     channel_input_window_adjust(int, int, void *);  
   
 /* file descriptor handling (read/write) */  /* file descriptor handling (read/write) */
   
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 int      channel_connect_to(const char *, u_short);  int      channel_connect_to(const char *, u_short);
 int      channel_connect_by_listen_address(u_short);  int      channel_connect_by_listen_address(u_short);
 void     channel_request_remote_forwarding(u_short, const char *, 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_setup_local_fwd_listener(u_short, const char *, u_short, int);
 int  int      channel_setup_remote_fwd_listener(const char *, u_short, int);
 channel_request_forwarding(const char *, u_short, const char *, u_short, int,  
     int);  
   
 /* x11 forwarding */  /* x11 forwarding */
   
 int      x11_connect_display(void);  int      x11_connect_display(void);
 char    *x11_create_display(int);  int      x11_create_display_inet(int, int, int);
 char    *x11_create_display_inet(int, int);  void     x11_input_open(int, u_int32_t, void *);
 void     x11_input_open(int, int, void *);  
 void     x11_request_forwarding(void);  
 void     x11_request_forwarding_with_spoofing(int, const char *, const char *);  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 */  /* agent forwarding */
   
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 char    *auth_get_socket_name(void);  char    *auth_get_socket_name(void);
 void     auth_sock_cleanup_proc(void *);  void     auth_sock_cleanup_proc(void *);
 int      auth_input_request_forwarding(struct passwd *);  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 */  /* channel close */
   
 int      chan_is_dead(Channel *, int);  int      chan_is_dead(Channel *, int);
 void     chan_mark_dead(Channel *);  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 */  void     chan_rcvd_oclose(Channel *);
 extern chan_event_fn    *chan_rcvd_oclose;  void     chan_read_failed(Channel *);
 extern chan_event_fn    *chan_read_failed;  void     chan_ibuf_empty(Channel *);
 extern chan_event_fn    *chan_ibuf_empty;  
   
 /* for the output state */  void     chan_rcvd_ieof(Channel *);
 extern chan_event_fn    *chan_rcvd_ieof;  void     chan_write_failed(Channel *);
 extern chan_event_fn    *chan_write_failed;  void     chan_obuf_empty(Channel *);
 extern chan_event_fn    *chan_obuf_empty;  
   
 #endif  #endif
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