1 /*

     2  * Copyright (c) 1995 Danny Gasparovski.

     3  *

     4  * Please read the file COPYRIGHT for the

     5  * terms and conditions of the copyright.

     6  */

     7 

     8 #ifdef HAVE_SYS_SELECT_H

     9 #include <sys/select.h>

    10 #endif

    11 

    12 #define TOWRITEMAX 512

    13 

    14 extern struct timeval tt;

    15 extern int link_up;

    16 extern int slirp_socket;

    17 extern int slirp_socket_unit;

    18 extern int slirp_socket_port;

    19 extern u_int32_t slirp_socket_addr;

    20 extern char *slirp_socket_passwd;

    21 extern int ctty_closed;

    22 

    23 /*

    24  * Get the difference in 2 times from updtim()

    25  * Allow for wraparound times, "just in case"

    26  * x is the greater of the 2 (current time) and y is

    27  * what it's being compared against.

    28  */

    29 #define TIME_DIFF(x,y) (x)-(y) < 0 ? ~0-(y)+(x) : (x)-(y)

    30 

    31 extern char *slirp_tty;

    32 extern char *exec_shell;

    33 extern u_int curtime;

    34 extern fd_set *global_readfds, *global_writefds, *global_xfds;

    35 extern struct in_addr ctl_addr;

    36 extern struct in_addr special_addr;

    37 extern struct in_addr alias_addr;

    38 extern struct in_addr our_addr;

    39 extern struct in_addr loopback_addr;

    40 extern struct in_addr dns_addr;

    41 extern char *username;

    42 extern char *socket_path;

    43 extern int towrite_max;

    44 extern int ppp_exit;

    45 extern int tcp_keepintvl;

    46 extern uint8_t client_ethaddr[6];

    47 

    48 #define PROTO_SLIP 0x1

    49 #ifdef USE_PPP

    50 #define PROTO_PPP 0x2

    51 #endif

    52 

    53 void if_encap(const uint8_t *ip_data, int ip_data_len);