1 | /* |
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2 | * pppd.h - PPP daemon global declarations. |
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3 | * |
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4 | * Copyright (c) 1989 Carnegie Mellon University. |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms are permitted |
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8 | * provided that the above copyright notice and this paragraph are |
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9 | * duplicated in all such forms and that any documentation, |
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10 | * advertising materials, and other materials related to such |
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11 | * distribution and use acknowledge that the software was developed |
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12 | * by Carnegie Mellon University. The name of the |
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13 | * University may not be used to endorse or promote products derived |
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14 | * from this software without specific prior written permission. |
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15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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17 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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18 | * |
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19 | * $Id$ |
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20 | */ |
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21 | |
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22 | #ifndef __PPPD_H__ |
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23 | #define __PPPD_H__ |
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24 | |
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25 | #include <stdio.h> /* for FILE */ |
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26 | #include <limits.h> /* for NGROUPS_MAX */ |
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27 | #include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */ |
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28 | #include <sys/types.h> /* for u_int32_t, if defined */ |
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29 | #include <sys/time.h> /* for struct timeval */ |
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30 | #include <net/ppp_defs.h> |
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31 | #include "rtemsdialer.h" |
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32 | |
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33 | #if defined(__STDC__) |
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34 | #include <stdarg.h> |
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35 | #define __V(x) x |
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36 | #else |
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37 | #include <varargs.h> |
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38 | #define __V(x) (va_alist) va_dcl |
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39 | #define const |
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40 | #define volatile |
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41 | #endif |
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42 | |
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43 | #ifdef INET6 |
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44 | #include "eui64.h" |
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45 | #endif |
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46 | |
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47 | /* |
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48 | * Limits. |
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49 | */ |
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50 | |
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51 | #define NUM_PPP 1 /* One PPP interface supported (per process) */ |
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52 | #define MAXWORDLEN 1024 /* max length of word in file (incl null) */ |
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53 | #define MAXARGS 1 /* max # args to a command */ |
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54 | #define MAXNAMELEN 256 /* max length of hostname or name for auth */ |
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55 | #define MAXSECRETLEN 256 /* max length of password or secret */ |
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56 | |
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57 | /* |
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58 | * Option descriptor structure. |
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59 | */ |
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60 | |
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61 | typedef unsigned char bool; |
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62 | |
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63 | enum opt_type { |
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64 | o_special_noarg = 0, |
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65 | o_special = 1, |
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66 | o_bool, |
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67 | o_int, |
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68 | o_uint32, |
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69 | o_string, |
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70 | }; |
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71 | |
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72 | typedef struct { |
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73 | char *name; /* name of the option */ |
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74 | enum opt_type type; |
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75 | void *addr; |
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76 | char *description; |
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77 | int flags; |
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78 | void *addr2; |
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79 | int upper_limit; |
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80 | int lower_limit; |
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81 | } option_t; |
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82 | |
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83 | /* Values for flags */ |
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84 | #define OPT_VALUE 0xff /* mask for presupplied value */ |
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85 | #define OPT_HEX 0x100 /* int option is in hex */ |
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86 | #define OPT_NOARG 0x200 /* option doesn't take argument */ |
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87 | #define OPT_OR 0x400 /* OR in argument to value */ |
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88 | #define OPT_INC 0x800 /* increment value */ |
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89 | #define OPT_PRIV 0x1000 /* privileged option */ |
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90 | #define OPT_STATIC 0x2000 /* string option goes into static array */ |
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91 | #define OPT_LLIMIT 0x4000 /* check value against lower limit */ |
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92 | #define OPT_ULIMIT 0x8000 /* check value against upper limit */ |
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93 | #define OPT_LIMITS (OPT_LLIMIT|OPT_ULIMIT) |
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94 | #define OPT_ZEROOK 0x10000 /* 0 value is OK even if not within limits */ |
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95 | #define OPT_NOINCR 0x20000 /* value mustn't be increased */ |
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96 | #define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */ |
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97 | #define OPT_A2INFO 0x100000 /* addr2 -> option_info to update */ |
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98 | #define OPT_A2COPY 0x200000 /* addr2 -> second location to rcv value */ |
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99 | #define OPT_ENABLE 0x400000 /* use *addr2 as enable for option */ |
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100 | #define OPT_PRIVFIX 0x800000 /* can't be overridden if noauth */ |
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101 | #define OPT_PREPASS 0x1000000 /* do this opt in pre-pass to find device */ |
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102 | #define OPT_INITONLY 0x2000000 /* option can only be set in init phase */ |
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103 | #define OPT_DEVEQUIV 0x4000000 /* equiv to device name */ |
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104 | #define OPT_DEVNAM (OPT_PREPASS | OPT_INITONLY | OPT_DEVEQUIV) |
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105 | |
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106 | #define OPT_VAL(x) ((x) & OPT_VALUE) |
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107 | |
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108 | #ifndef GIDSET_TYPE |
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109 | #define GIDSET_TYPE gid_t |
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110 | #endif |
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111 | |
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112 | /* Structure representing a list of permitted IP addresses. */ |
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113 | struct permitted_ip { |
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114 | int permit; /* 1 = permit, 0 = forbid */ |
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115 | u_int32_t base; /* match if (addr & mask) == base */ |
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116 | u_int32_t mask; /* base and mask are in network byte order */ |
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117 | }; |
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118 | |
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119 | /* |
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120 | * Unfortunately, the linux kernel driver uses a different structure |
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121 | * for statistics from the rest of the ports. |
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122 | * This structure serves as a common representation for the bits |
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123 | * pppd needs. |
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124 | */ |
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125 | struct pppd_stats { |
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126 | unsigned int bytes_in; |
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127 | unsigned int bytes_out; |
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128 | }; |
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129 | |
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130 | /* Used for storing a sequence of words. Usually malloced. */ |
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131 | struct wordlist { |
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132 | struct wordlist *next; |
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133 | char *word; |
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134 | }; |
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135 | |
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136 | /* |
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137 | * Global variables. |
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138 | */ |
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139 | |
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140 | extern int kill_link; /* Signal to terminate processing loop */ |
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141 | extern int hungup; /* Physical layer has disconnected */ |
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142 | extern int pppifunit; /* Interface unit number */ |
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143 | extern char ifname[]; /* Interface name */ |
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144 | extern int ttyfd; /* Serial device file descriptor */ |
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145 | extern char hostname[]; /* Our hostname */ |
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146 | extern u_char outpacket_buf[]; /* Buffer for outgoing packets */ |
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147 | extern int phase; /* Current state of link - see values below */ |
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148 | extern int baud_rate; /* Current link speed in bits/sec */ |
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149 | extern char *progname; /* Name of this program */ |
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150 | extern int redirect_stderr;/* Connector's stderr should go to file */ |
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151 | extern char peer_authname[];/* Authenticated name of peer */ |
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152 | extern int privileged; /* We were run by real-uid root */ |
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153 | extern int need_holdoff; /* Need holdoff period after link terminates */ |
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154 | extern char **script_env; /* Environment variables for scripts */ |
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155 | extern int detached; /* Have detached from controlling tty */ |
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156 | extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */ |
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157 | extern int ngroups; /* How many groups valid in groups */ |
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158 | extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */ |
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159 | extern int using_pty; /* using pty as device (notty or pty opt.) */ |
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160 | extern int log_to_fd; /* logging to this fd as well as syslog */ |
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161 | extern char *no_ppp_msg; /* message to print if ppp not in kernel */ |
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162 | extern volatile int status; /* exit status for pppd */ |
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163 | extern int devnam_fixed; /* can no longer change devnam */ |
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164 | extern int unsuccess; /* # unsuccessful connection attempts */ |
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165 | extern int do_callback; /* set if we want to do callback next */ |
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166 | extern int doing_callback; /* set if this is a callback */ |
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167 | extern dialerfp pppd_dialer; /* script dialer function callback */ |
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168 | |
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169 | /* Values for do_callback and doing_callback */ |
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170 | #define CALLBACK_DIALIN 1 /* we are expecting the call back */ |
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171 | #define CALLBACK_DIALOUT 2 /* we are dialling out to call back */ |
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172 | |
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173 | /* |
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174 | * Variables set by command-line options. |
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175 | */ |
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176 | |
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177 | extern int debug; /* Debug flag */ |
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178 | extern int kdebugflag; /* Tell kernel to print debug messages */ |
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179 | extern int default_device; /* Using /dev/tty or equivalent */ |
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180 | extern char devnam[MAXPATHLEN]; /* Device name */ |
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181 | extern int crtscts; /* Use hardware flow control */ |
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182 | extern bool modem; /* Use modem control lines */ |
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183 | extern int inspeed; /* Input/Output speed requested */ |
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184 | extern u_int32_t netmask; /* IP netmask to set on interface */ |
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185 | extern bool lockflag; /* Create lock file to lock the serial dev */ |
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186 | extern bool nodetach; /* Don't detach from controlling tty */ |
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187 | extern bool updetach; /* Detach from controlling tty when link up */ |
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188 | extern char *initializer; /* Script to initialize physical link */ |
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189 | extern char *connect_script; /* Script to establish physical link */ |
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190 | extern char *disconnect_script; /* Script to disestablish physical link */ |
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191 | extern char *welcomer; /* Script to welcome client after connection */ |
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192 | extern char *ptycommand; /* Command to run on other side of pty */ |
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193 | extern int maxconnect; /* Maximum connect time (seconds) */ |
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194 | extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */ |
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195 | extern char passwd[MAXSECRETLEN]; /* Password for PAP or CHAP */ |
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196 | extern bool auth_required; /* Peer is required to authenticate */ |
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197 | extern bool persist; /* Reopen link after it goes down */ |
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198 | extern bool uselogin; /* Use /etc/passwd for checking PAP */ |
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199 | extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */ |
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200 | extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */ |
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201 | extern bool explicit_remote;/* remote_name specified with remotename opt */ |
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202 | extern bool demand; /* Do dial-on-demand */ |
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203 | extern char *ipparam; /* Extra parameter for ip up/down scripts */ |
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204 | extern bool cryptpap; /* Others' PAP passwords are encrypted */ |
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205 | extern int idle_time_limit;/* Shut down link if idle for this long */ |
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206 | extern int holdoff; /* Dead time before restarting */ |
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207 | extern bool holdoff_specified; /* true if user gave a holdoff value */ |
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208 | extern bool notty; /* Stdin/out is not a tty */ |
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209 | extern char *record_file; /* File to record chars sent/received */ |
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210 | extern bool sync_serial; /* Device is synchronous serial device */ |
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211 | extern int maxfail; /* Max # of unsuccessful connection attempts */ |
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212 | extern char linkname[MAXPATHLEN]; /* logical name for link */ |
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213 | extern bool tune_kernel; /* May alter kernel settings as necessary */ |
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214 | extern int connect_delay; /* Time to delay after connect script */ |
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215 | |
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216 | #ifdef PPP_FILTER |
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217 | extern struct bpf_program pass_filter; /* Filter for pkts to pass */ |
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218 | extern struct bpf_program active_filter; /* Filter for link-active pkts */ |
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219 | #endif |
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220 | |
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221 | #ifdef MSLANMAN |
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222 | extern bool ms_lanman; /* Use LanMan password instead of NT */ |
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223 | /* Has meaning only with MS-CHAP challenges */ |
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224 | #endif |
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225 | |
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226 | extern char *current_option; /* the name of the option being parsed */ |
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227 | extern int privileged_option; /* set iff the current option came from root */ |
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228 | extern char *option_source; /* string saying where the option came from */ |
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229 | |
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230 | /* |
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231 | * Values for phase. |
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232 | */ |
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233 | #define PHASE_DEAD 0 |
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234 | #define PHASE_INITIALIZE 1 |
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235 | #define PHASE_SERIALCONN 2 |
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236 | #define PHASE_DORMANT 3 |
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237 | #define PHASE_ESTABLISH 4 |
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238 | #define PHASE_AUTHENTICATE 5 |
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239 | #define PHASE_CALLBACK 6 |
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240 | #define PHASE_NETWORK 7 |
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241 | #define PHASE_RUNNING 8 |
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242 | #define PHASE_TERMINATE 9 |
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243 | #define PHASE_DISCONNECT 10 |
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244 | #define PHASE_HOLDOFF 11 |
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245 | |
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246 | /* |
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247 | * The following struct gives the addresses of procedures to call |
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248 | * for a particular protocol. |
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249 | */ |
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250 | struct protent { |
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251 | u_short protocol; /* PPP protocol number */ |
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252 | /* Initialization procedure */ |
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253 | void (*init) __P((int unit)); |
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254 | /* Process a received packet */ |
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255 | void (*input) __P((int unit, u_char *pkt, int len)); |
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256 | /* Process a received protocol-reject */ |
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257 | void (*protrej) __P((int unit)); |
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258 | /* Lower layer has come up */ |
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259 | void (*lowerup) __P((int unit)); |
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260 | /* Lower layer has gone down */ |
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261 | void (*lowerdown) __P((int unit)); |
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262 | /* Open the protocol */ |
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263 | void (*open) __P((int unit)); |
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264 | /* Close the protocol */ |
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265 | void (*close) __P((int unit, char *reason)); |
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266 | /* Print a packet in readable form */ |
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267 | int (*printpkt) __P((u_char *pkt, int len, |
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268 | void (*printer) __P((void *, char *, ...)), |
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269 | void *arg)); |
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270 | /* Process a received data packet */ |
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271 | void (*datainput) __P((int unit, u_char *pkt, int len)); |
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272 | bool enabled_flag; /* 0 iff protocol is disabled */ |
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273 | char *name; /* Text name of protocol */ |
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274 | char *data_name; /* Text name of corresponding data protocol */ |
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275 | option_t *options; /* List of command-line options */ |
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276 | /* Check requested options, assign defaults */ |
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277 | void (*check_options) __P((void)); |
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278 | /* Configure interface for demand-dial */ |
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279 | int (*demand_conf) __P((int unit)); |
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280 | /* Say whether to bring up link for this pkt */ |
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281 | int (*active_pkt) __P((u_char *pkt, int len)); |
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282 | }; |
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283 | |
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284 | /* Table of pointers to supported protocols */ |
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285 | extern struct protent *protocols[]; |
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286 | |
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287 | /* |
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288 | * Prototypes. |
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289 | */ |
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290 | |
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291 | /* Procedures exported from main.c. */ |
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292 | void die __P((int)); /* Cleanup and exit */ |
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293 | void quit __P((void)); /* like die(1) */ |
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294 | void novm __P((char *)); /* Say we ran out of memory, and die */ |
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295 | void ppptimeout __P((void (*func)(void *), void *arg, int t)); |
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296 | /* Call func(arg) after t seconds */ |
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297 | void untimeout __P((void (*func)(void *), void *arg)); |
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298 | /* Cancel call to func(arg) */ |
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299 | void update_link_stats __P((int)); /* Get stats at link termination */ |
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300 | void new_phase __P((int)); /* signal start of new phase */ |
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301 | |
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302 | /* Procedures exported from utils.c. */ |
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303 | void log_packet __P((u_char *, int, char *, int)); |
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304 | /* Format a packet and log it with syslog */ |
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305 | void print_string __P((char *, int, void (*) (void *, char *, ...), |
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306 | void *)); /* Format a string for output */ |
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307 | int slprintf __P((char *, int, char *, ...)); /* sprintf++ */ |
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308 | int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */ |
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309 | size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */ |
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310 | size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */ |
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311 | void pppd_dbglog __P((char *, ...)); /* log a debug message */ |
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312 | void pppd_info __P((char *, ...)); /* log an informational message */ |
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313 | void pppd_notice __P((char *, ...)); /* log a notice-level message */ |
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314 | void pppd_warn __P((char *, ...)); /* log a warning message */ |
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315 | void pppd_error __P((char *, ...)); /* log an error message */ |
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316 | void pppd_fatal __P((char *, ...)); /* log an error message and die(1) */ |
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317 | |
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318 | #define dbglog pppd_dbglog |
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319 | #define info pppd_info |
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320 | #define notice pppd_notice |
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321 | #define warn pppd_warn |
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322 | #define error pppd_error |
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323 | #define fatal pppd_fatal |
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324 | |
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325 | /* Procedures exported from auth.c */ |
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326 | void link_required __P((int)); /* we are starting to use the link */ |
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327 | void link_terminated __P((int)); /* we are finished with the link */ |
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328 | void link_down __P((int)); /* the LCP layer has left the Opened state */ |
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329 | void link_established __P((int)); /* the link is up; authenticate now */ |
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330 | void start_networks __P((void)); /* start all the network control protos */ |
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331 | void np_up __P((int, int)); /* a network protocol has come up */ |
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332 | void np_down __P((int, int)); /* a network protocol has gone down */ |
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333 | void np_finished __P((int, int)); /* a network protocol no longer needs link */ |
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334 | void auth_peer_fail __P((int, int)); |
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335 | /* peer failed to authenticate itself */ |
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336 | void auth_peer_success __P((int, int, char *, int)); |
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337 | /* peer successfully authenticated itself */ |
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338 | void auth_withpeer_fail __P((int, int)); |
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339 | /* we failed to authenticate ourselves */ |
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340 | void auth_withpeer_success __P((int, int)); |
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341 | /* we successfully authenticated ourselves */ |
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342 | int auth_check_options __P((void)); |
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343 | /* check authentication options supplied */ |
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344 | void auth_reset __P((int)); /* check what secrets we have */ |
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345 | int check_passwd __P((int, char *, int, char *, int, char **)); |
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346 | /* Check peer-supplied username/password */ |
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347 | int get_secret __P((int, char *, char *, char *, int *, int)); |
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348 | /* get "secret" for chap */ |
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349 | int auth_ip_addr __P((int, u_int32_t)); |
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350 | /* check if IP address is authorized */ |
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351 | int bad_ip_adrs __P((u_int32_t)); |
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352 | /* check if IP address is unreasonable */ |
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353 | |
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354 | /* Procedures exported from demand.c */ |
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355 | void demand_conf __P((void)); /* config interface(s) for demand-dial */ |
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356 | void demand_block __P((void)); /* set all NPs to queue up packets */ |
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357 | void demand_unblock __P((void)); /* set all NPs to pass packets */ |
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358 | void demand_discard __P((void)); /* set all NPs to discard packets */ |
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359 | void demand_rexmit __P((int)); /* retransmit saved frames for an NP */ |
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360 | int loop_chars __P((unsigned char *, int)); /* process chars from loopback */ |
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361 | int loop_frame __P((unsigned char *, int)); /* should we bring link up? */ |
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362 | |
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363 | /* Procedures exported from sys-*.c */ |
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364 | void sys_init __P((void)); /* Do system-dependent initialization */ |
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365 | void sys_cleanup __P((void)); /* Restore system state before exiting */ |
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366 | int sys_check_options __P((void)); /* Check options specified */ |
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367 | void sys_close __P((void)); /* Clean up in a child before execing */ |
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368 | int ppp_available __P((void)); /* Test whether ppp kernel support exists */ |
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369 | int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */ |
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370 | int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */ |
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371 | int establish_ppp __P((int)); /* Turn serial port into a ppp interface */ |
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372 | void restore_loop __P((void)); /* Transfer ppp unit back to loopback */ |
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373 | void disestablish_ppp __P((int)); /* Restore port to normal operation */ |
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374 | void clean_check __P((void)); /* Check if line was 8-bit clean */ |
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375 | void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */ |
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376 | void restore_tty __P((int)); /* Restore port's original parameters */ |
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377 | void setdtr __P((int, int)); /* Raise or lower port's DTR line */ |
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378 | void output __P((int, u_char *, int)); /* Output a PPP packet */ |
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379 | void wait_input __P((struct timeval *)); /* Wait for input, with timeout */ |
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380 | |
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381 | void ppp_delay __P((void)); /* delay task for a little while */ |
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382 | int read_packet __P((u_char *)); /* Read PPP packet */ |
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383 | int get_loop_output __P((void)); /* Read pkts from loopback */ |
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384 | void ppp_send_config __P((int, int, u_int32_t, int, int)); |
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385 | /* Configure i/f transmit parameters */ |
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386 | void ppp_set_xaccm __P((int, ext_accm)); |
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387 | /* Set extended transmit ACCM */ |
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388 | void ppp_recv_config __P((int, int, u_int32_t, int, int)); |
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389 | /* Configure i/f receive parameters */ |
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390 | int ccp_test __P((int, u_char *, int, int)); |
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391 | /* Test support for compression scheme */ |
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392 | void ccp_flags_set __P((int, int, int)); |
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393 | /* Set kernel CCP state */ |
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394 | int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */ |
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395 | int get_idle_time __P((int, struct ppp_idle *)); |
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396 | /* Find out how long link has been idle */ |
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397 | int get_ppp_stats __P((int, struct pppd_stats *)); |
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398 | /* Return link statistics */ |
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399 | int sifvjcomp __P((int, int, int, int)); |
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400 | /* Configure VJ TCP header compression */ |
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401 | int sifup __P((int)); /* Configure i/f up for one protocol */ |
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402 | int sifnpmode __P((int u, int proto, enum NPmode mode)); |
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403 | /* Set mode for handling packets for proto */ |
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404 | int sifdown __P((int)); /* Configure i/f down for one protocol */ |
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405 | int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t)); |
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406 | /* Configure IPv4 addresses for i/f */ |
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407 | int cifaddr __P((int, u_int32_t, u_int32_t)); |
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408 | /* Reset i/f IP addresses */ |
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409 | #ifdef INET6 |
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410 | int sif6addr __P((int, eui64_t, eui64_t)); |
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411 | /* Configure IPv6 addresses for i/f */ |
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412 | int cif6addr __P((int, eui64_t, eui64_t)); |
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413 | /* Remove an IPv6 address from i/f */ |
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414 | #endif |
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415 | int sifdefaultroute __P((int, u_int32_t, u_int32_t)); |
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416 | /* Create default route through i/f */ |
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417 | int cifdefaultroute __P((int, u_int32_t, u_int32_t)); |
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418 | /* Delete default route through i/f */ |
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419 | int sifproxyarp __P((int, u_int32_t)); |
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420 | /* Add proxy ARP entry for peer */ |
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421 | int cifproxyarp __P((int, u_int32_t)); |
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422 | /* Delete proxy ARP entry for peer */ |
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423 | u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */ |
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424 | int lock __P((char *)); /* Create lock file for device */ |
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425 | int relock __P((int)); /* Rewrite lock file with new pid */ |
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426 | void unlock __P((void)); /* Delete previously-created lock file */ |
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427 | void logwtmp __P((const char *, const char *, const char *)); |
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428 | /* Write entry to wtmp file */ |
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429 | int get_host_seed __P((void)); /* Get host-dependent random number seed */ |
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430 | int have_route_to __P((u_int32_t)); /* Check if route to addr exists */ |
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431 | #ifdef PPP_FILTER |
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432 | int set_filters __P((struct bpf_program *pass, struct bpf_program *active)); |
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433 | /* Set filter programs in kernel */ |
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434 | #endif |
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435 | #ifdef IPX_CHANGE |
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436 | int sipxfaddr __P((int, unsigned long, unsigned char *)); |
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437 | int cipxfaddr __P((int)); |
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438 | #endif |
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439 | |
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440 | /* Procedures exported from options.c */ |
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441 | int parse_args __P((int argc, char **argv)); |
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442 | /* Parse options from arguments given */ |
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443 | int options_from_file __P((char *filename, int must_exist, int check_prot, |
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444 | int privileged)); |
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445 | /* Parse options from an options file */ |
---|
446 | int options_from_user __P((void)); /* Parse options from user's .ppprc */ |
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447 | int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */ |
---|
448 | int options_from_list __P((struct wordlist *, int privileged)); |
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449 | /* Parse options from a wordlist */ |
---|
450 | int getword __P((FILE *f, char *word, int *newlinep, char *filename)); |
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451 | /* Read a word from a file */ |
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452 | void option_error __P((char *fmt, ...)); |
---|
453 | /* Print an error message about an option */ |
---|
454 | int int_option __P((char *, int *)); |
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455 | /* Simplified number_option for decimal ints */ |
---|
456 | void add_options __P((option_t *)); /* Add extra options */ |
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457 | |
---|
458 | /* |
---|
459 | * This structure is used to store information about certain |
---|
460 | * options, such as where the option value came from (/etc/ppp/options, |
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461 | * command line, etc.) and whether it came from a privileged source. |
---|
462 | */ |
---|
463 | |
---|
464 | struct option_info { |
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465 | int priv; /* was value set by sysadmin? */ |
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466 | char *source; /* where option came from */ |
---|
467 | }; |
---|
468 | |
---|
469 | extern struct option_info devnam_info; |
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470 | extern struct option_info initializer_info; |
---|
471 | extern struct option_info connect_script_info; |
---|
472 | extern struct option_info disconnect_script_info; |
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473 | extern struct option_info welcomer_info; |
---|
474 | extern struct option_info ptycommand_info; |
---|
475 | |
---|
476 | /* |
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477 | * Hooks to enable plugins to change various things. |
---|
478 | */ |
---|
479 | extern int (*new_phase_hook) __P((int)); |
---|
480 | extern int (*idle_time_hook) __P((struct ppp_idle *)); |
---|
481 | extern int (*holdoff_hook) __P((void)); |
---|
482 | extern int (*pap_check_hook) __P((void)); |
---|
483 | extern int (*pap_auth_hook) __P((char *user, char *passwd/*, char **msgp, |
---|
484 | struct wordlist **paddrs, |
---|
485 | struct wordlist **popts*/)); |
---|
486 | extern void (*pap_logout_hook) __P((void)); |
---|
487 | extern int (*pap_passwd_hook) __P((char *user, char *passwd)); |
---|
488 | extern void (*ip_up_hook) __P((void)); |
---|
489 | extern void (*ip_down_hook) __P((void)); |
---|
490 | extern void (*auth_linkup_hook) __P((void)); |
---|
491 | extern void (*auth_linkdown_hook) __P((void)); |
---|
492 | |
---|
493 | /* |
---|
494 | * Inline versions of get/put char/short/long. |
---|
495 | * Pointer is advanced; we assume that both arguments |
---|
496 | * are lvalues and will already be in registers. |
---|
497 | * cp MUST be u_char *. |
---|
498 | */ |
---|
499 | #define GETCHAR(c, cp) { \ |
---|
500 | (c) = *(cp)++; \ |
---|
501 | } |
---|
502 | #define PUTCHAR(c, cp) { \ |
---|
503 | *(cp)++ = (u_char) (c); \ |
---|
504 | } |
---|
505 | |
---|
506 | |
---|
507 | #define GETSHORT(s, cp) { \ |
---|
508 | (s) = *(cp)++ << 8; \ |
---|
509 | (s) |= *(cp)++; \ |
---|
510 | } |
---|
511 | #define PUTSHORT(s, cp) { \ |
---|
512 | *(cp)++ = (u_char) ((s) >> 8); \ |
---|
513 | *(cp)++ = (u_char) (s); \ |
---|
514 | } |
---|
515 | |
---|
516 | #define GETLONG(l, cp) { \ |
---|
517 | (l) = *(cp)++ << 8; \ |
---|
518 | (l) |= *(cp)++; (l) <<= 8; \ |
---|
519 | (l) |= *(cp)++; (l) <<= 8; \ |
---|
520 | (l) |= *(cp)++; \ |
---|
521 | } |
---|
522 | #define PUTLONG(l, cp) { \ |
---|
523 | *(cp)++ = (u_char) ((l) >> 24); \ |
---|
524 | *(cp)++ = (u_char) ((l) >> 16); \ |
---|
525 | *(cp)++ = (u_char) ((l) >> 8); \ |
---|
526 | *(cp)++ = (u_char) (l); \ |
---|
527 | } |
---|
528 | |
---|
529 | #define INCPTR(n, cp) ((cp) += (n)) |
---|
530 | #define DECPTR(n, cp) ((cp) -= (n)) |
---|
531 | |
---|
532 | /* |
---|
533 | * System dependent definitions for user-level 4.3BSD UNIX implementation. |
---|
534 | */ |
---|
535 | |
---|
536 | #define TIMEOUT(r, f, t) ppptimeout((r), (f), (t)) |
---|
537 | #define UNTIMEOUT(r, f) untimeout((r), (f)) |
---|
538 | |
---|
539 | #define BCOPY(s, d, l) memcpy(d, s, l) |
---|
540 | #define BZERO(s, n) memset(s, 0, n) |
---|
541 | |
---|
542 | #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); } |
---|
543 | |
---|
544 | /* |
---|
545 | * MAKEHEADER - Add Header fields to a packet. |
---|
546 | */ |
---|
547 | #define MAKEHEADER(p, t) { \ |
---|
548 | PUTCHAR(PPP_ALLSTATIONS, p); \ |
---|
549 | PUTCHAR(PPP_UI, p); \ |
---|
550 | PUTSHORT(t, p); } |
---|
551 | |
---|
552 | /* |
---|
553 | * Exit status values. |
---|
554 | */ |
---|
555 | #define EXIT_OK 0 |
---|
556 | #define EXIT_FATAL_ERROR 1 |
---|
557 | #define EXIT_OPTION_ERROR 2 |
---|
558 | #define EXIT_NOT_ROOT 3 |
---|
559 | #define EXIT_NO_KERNEL_SUPPORT 4 |
---|
560 | #define EXIT_USER_REQUEST 5 |
---|
561 | #define EXIT_LOCK_FAILED 6 |
---|
562 | #define EXIT_OPEN_FAILED 7 |
---|
563 | #define EXIT_CONNECT_FAILED 8 |
---|
564 | #define EXIT_PTYCMD_FAILED 9 |
---|
565 | #define EXIT_NEGOTIATION_FAILED 10 |
---|
566 | #define EXIT_PEER_AUTH_FAILED 11 |
---|
567 | #define EXIT_IDLE_TIMEOUT 12 |
---|
568 | #define EXIT_CONNECT_TIME 13 |
---|
569 | #define EXIT_CALLBACK 14 |
---|
570 | #define EXIT_PEER_DEAD 15 |
---|
571 | #define EXIT_HANGUP 16 |
---|
572 | #define EXIT_LOOPBACK 17 |
---|
573 | #define EXIT_INIT_FAILED 18 |
---|
574 | #define EXIT_AUTH_TOPEER_FAILED 19 |
---|
575 | |
---|
576 | /* |
---|
577 | * Debug macros. Slightly useful for finding bugs in pppd, not particularly |
---|
578 | * useful for finding out why your connection isn't being established. |
---|
579 | */ |
---|
580 | |
---|
581 | #ifdef DEBUGALL |
---|
582 | #define DEBUGMAIN 1 |
---|
583 | #define DEBUGFSM 1 |
---|
584 | #define DEBUGLCP 1 |
---|
585 | #define DEBUGIPCP 1 |
---|
586 | #define DEBUGIPV6CP 1 |
---|
587 | #define DEBUGUPAP 1 |
---|
588 | #define DEBUGCHAP 1 |
---|
589 | #endif |
---|
590 | #define DEBUGMAIN 1 |
---|
591 | #define DEBUGUPAP 1 |
---|
592 | #define DEBUGCHAP 1 |
---|
593 | |
---|
594 | |
---|
595 | #ifdef DEBUGMAIN |
---|
596 | #define MAINDEBUG(x) if (debug) dbglog x |
---|
597 | #else |
---|
598 | #define MAINDEBUG(x) |
---|
599 | #endif |
---|
600 | |
---|
601 | #ifdef DEBUGSYS |
---|
602 | #define SYSDEBUG(x) if (debug) dbglog x |
---|
603 | #else |
---|
604 | #define SYSDEBUG(x) |
---|
605 | #endif |
---|
606 | |
---|
607 | #ifdef DEBUGFSM |
---|
608 | #define FSMDEBUG(x) if (debug) dbglog x |
---|
609 | #else |
---|
610 | #define FSMDEBUG(x) |
---|
611 | #endif |
---|
612 | |
---|
613 | #ifdef DEBUGLCP |
---|
614 | #define LCPDEBUG(x) if (debug) dbglog x |
---|
615 | #else |
---|
616 | #define LCPDEBUG(x) |
---|
617 | #endif |
---|
618 | |
---|
619 | #ifdef DEBUGIPCP |
---|
620 | #define IPCPDEBUG(x) if (debug) dbglog x |
---|
621 | #else |
---|
622 | #define IPCPDEBUG(x) |
---|
623 | #endif |
---|
624 | |
---|
625 | #ifdef DEBUGIPV6CP |
---|
626 | #define IPV6CPDEBUG(x) if (debug) dbglog x |
---|
627 | #else |
---|
628 | #define IPV6CPDEBUG(x) |
---|
629 | #endif |
---|
630 | |
---|
631 | #ifdef DEBUGUPAP |
---|
632 | #define UPAPDEBUG(x) if (debug) dbglog x |
---|
633 | #else |
---|
634 | #define UPAPDEBUG(x) |
---|
635 | #endif |
---|
636 | |
---|
637 | #ifdef DEBUGCHAP |
---|
638 | #define CHAPDEBUG(x) if (debug) dbglog x |
---|
639 | #else |
---|
640 | #define CHAPDEBUG(x) |
---|
641 | #endif |
---|
642 | |
---|
643 | #ifdef DEBUGIPXCP |
---|
644 | #define IPXCPDEBUG(x) if (debug) dbglog x |
---|
645 | #else |
---|
646 | #define IPXCPDEBUG(x) |
---|
647 | #endif |
---|
648 | |
---|
649 | #ifndef SIGTYPE |
---|
650 | #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) |
---|
651 | #define SIGTYPE void |
---|
652 | #else |
---|
653 | #define SIGTYPE int |
---|
654 | #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */ |
---|
655 | #endif /* SIGTYPE */ |
---|
656 | |
---|
657 | #ifndef MIN |
---|
658 | #define MIN(a, b) ((a) < (b)? (a): (b)) |
---|
659 | #endif |
---|
660 | #ifndef MAX |
---|
661 | #define MAX(a, b) ((a) > (b)? (a): (b)) |
---|
662 | #endif |
---|
663 | |
---|
664 | #endif /* __PPP_H__ */ |
---|