1 | /* |
1 | /* |
2 | conf.c -- configuration code |
2 | conf.c -- configuration code |
3 | Copyright (C) 1998 Robert van der Meulen |
3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
4 | 1998-2002 Ivo Timmermans <ivo@o2w.nl> |
|
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5 | 2000-2002 Guus Sliepen <guus@sliepen.eu.org> |
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6 | 2000 Cris van Pelt <tribbel@arise.dhs.org> |
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7 | 2003 Marc Lehmann <pcg@goof.com> |
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8 | |
4 | |
9 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. |
8 | (at your option) any later version. |
… | |
… | |
31 | #include <netdb.h> |
27 | #include <netdb.h> |
32 | #include <sys/stat.h> |
28 | #include <sys/stat.h> |
33 | #include <sys/types.h> |
29 | #include <sys/types.h> |
34 | #include <unistd.h> |
30 | #include <unistd.h> |
35 | |
31 | |
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32 | #include "netcompat.h" |
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33 | |
36 | #include <openssl/err.h> |
34 | #include <openssl/err.h> |
37 | #include <openssl/pem.h> |
35 | #include <openssl/pem.h> |
38 | #include <openssl/rsa.h> |
36 | #include <openssl/rsa.h> |
39 | #include <openssl/rand.h> |
37 | #include <openssl/rand.h> |
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38 | #include <openssl/bn.h> |
40 | |
39 | |
41 | #include "gettext.h" |
40 | #include "gettext.h" |
42 | |
41 | |
43 | #include "conf.h" |
42 | #include "conf.h" |
44 | #include "slog.h" |
43 | #include "slog.h" |
45 | #include "util.h" |
44 | #include "util.h" |
46 | |
45 | |
47 | char *confbase; |
46 | char *confbase; |
48 | char *thisnode; |
47 | char *thisnode; |
49 | char *identname; |
48 | char *identname; |
50 | char *pidfilename; |
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51 | |
49 | |
52 | struct configuration conf; |
50 | struct configuration conf; |
53 | |
51 | |
54 | configuration::configuration () |
52 | u8 best_protocol (u8 protset) |
55 | { |
53 | { |
56 | init (); |
54 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
57 | } |
55 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
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56 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
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57 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
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58 | if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
58 | |
59 | |
59 | configuration::~configuration () |
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60 | { |
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61 | cleanup (); |
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62 | } |
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63 | |
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64 | void configuration::init () |
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65 | { |
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66 | memset (this, 0, sizeof (*this)); |
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67 | |
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68 | rekey = DEFAULT_REKEY; |
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69 | keepalive = DEFAULT_KEEPALIVE; |
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70 | |
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71 | default_node.port = DEFAULT_PORT; |
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72 | default_node.connectmode = conf_node::C_ALWAYS; |
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73 | default_node.compress = true; |
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74 | } |
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75 | |
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76 | void configuration::cleanup() |
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77 | { |
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78 | if (rsa_key) |
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79 | RSA_free (rsa_key); |
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80 | |
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81 | free (ifname); |
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82 | |
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83 | rsa_key = 0; |
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84 | ifname = 0; |
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85 | } |
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86 | |
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87 | void |
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88 | configuration::clear_config () |
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89 | { |
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90 | for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i) |
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91 | delete *i; |
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92 | |
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93 | nodes.clear (); |
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94 | |
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95 | cleanup (); |
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96 | init (); |
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97 | } |
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98 | |
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99 | void configuration::read_config (bool need_keys) |
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100 | { |
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101 | char *fname; |
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102 | FILE *f; |
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103 | |
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104 | clear_config (); |
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105 | |
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106 | asprintf (&fname, "%s/vped.conf", confbase); |
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107 | f = fopen (fname, "r"); |
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108 | |
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109 | if (f) |
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110 | { |
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111 | char line[16384]; |
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112 | int lineno = 0; |
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113 | char *var, *val; |
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114 | conf_node *node = &default_node; |
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115 | |
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116 | while (fgets (line, sizeof (line), f)) |
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117 | { |
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118 | lineno++; |
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119 | |
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120 | { |
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121 | char *end = line + strlen (line); |
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122 | |
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123 | while (*end < ' ' && end >= line) |
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124 | end--; |
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125 | |
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126 | *++end = 0; |
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127 | } |
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128 | |
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129 | char *tok = line; |
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130 | |
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131 | retry: |
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132 | var = strtok (tok, "\t ="); |
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133 | tok = 0; |
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134 | |
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135 | if (!var || !var[0]) |
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136 | continue; /* no tokens on this line */ |
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137 | |
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138 | if (var[0] == '#') |
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139 | continue; /* comment: ignore */ |
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140 | |
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141 | val = strtok (NULL, "\t\n\r ="); |
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142 | |
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143 | if (!val || val[0] == '#') |
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144 | { |
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145 | slog (L_WARN, |
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146 | _("no value for variable `%s', at '%s' line %d"), |
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147 | var, fname, lineno); |
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148 | break; |
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149 | } |
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150 | |
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151 | if (!strcmp (var, "on")) |
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152 | { |
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153 | if (!::thisnode |
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154 | || (val[0] == '!' && strcmp (val + 1, ::thisnode)) |
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155 | || !strcmp (val, ::thisnode)) |
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156 | goto retry; |
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157 | |
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158 | continue; |
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159 | } |
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160 | |
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161 | // truly global |
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162 | if (!strcmp (var, "loglevel")) |
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163 | { |
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164 | loglevel l = string_to_loglevel (val); |
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165 | |
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166 | if (l != L_NONE) |
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167 | set_loglevel (l); |
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168 | else |
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169 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
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170 | } |
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171 | |
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172 | // per config |
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173 | else if (!strcmp (var, "node")) |
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174 | { |
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175 | default_node.id++; |
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176 | |
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177 | node = new conf_node (default_node); |
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178 | |
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179 | nodes.push_back (node); |
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180 | |
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181 | node->nodename = strdup (val); |
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182 | |
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183 | { |
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184 | char *fname; |
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185 | FILE *f; |
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186 | |
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187 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
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188 | |
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189 | f = fopen (fname, "r"); |
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190 | if (f) |
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191 | { |
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192 | node->rsa_key = RSA_new (); |
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193 | |
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194 | if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL)) |
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195 | { |
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196 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
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197 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
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198 | exit (1); |
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199 | } |
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200 | |
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201 | RSA_blinding_on (node->rsa_key, 0); |
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202 | |
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203 | fclose (f); |
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204 | } |
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205 | else |
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206 | { |
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207 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
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208 | |
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209 | if (need_keys) |
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210 | exit (1); |
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211 | } |
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212 | |
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213 | free (fname); |
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214 | } |
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215 | |
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216 | if (!::thisnode || !strcmp (node->nodename, ::thisnode)) |
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217 | thisnode = node; |
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218 | } |
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219 | else if (!strcmp (var, "private-key")) |
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220 | prikeyfile = strdup (val); |
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221 | else if (!strcmp (var, "ifpersist")) |
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222 | { |
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223 | if (!strcmp (val, "yes")) |
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224 | ifpersist = true; |
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225 | else if (!strcmp (val, "no")) |
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226 | ifpersist = false; |
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227 | else |
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228 | slog (L_WARN, |
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229 | _("illegal value for 'ifpersist', only 'yes' or 'no' allowed, at '%s' line %d"), |
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230 | var, fname, lineno); |
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231 | } |
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232 | else if (!strcmp (var, "ifname")) |
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233 | ifname = strdup (val); |
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234 | else if (!strcmp (var, "rekey")) |
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235 | rekey = atoi (val); |
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236 | else if (!strcmp (var, "keepalive")) |
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237 | keepalive = atoi (val); |
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238 | else if (!strcmp (var, "mtu")) |
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239 | mtu = atoi (val); |
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240 | else if (!strcmp (var, "if-up")) |
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241 | script_if_up = strdup (val); |
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242 | else if (!strcmp (var, "node-up")) |
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243 | script_node_up = strdup (val); |
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244 | else if (!strcmp (var, "node-down")) |
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245 | script_node_down = strdup (val); |
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246 | |
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247 | /* node-specific, non-defaultable */ |
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248 | else if (node != &default_node && !strcmp (var, "hostname")) |
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249 | { |
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250 | free (node->hostname); |
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251 | node->hostname = strdup (val); |
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252 | } |
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253 | |
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254 | /* node-specific, defaultable */ |
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255 | else if (!strcmp (var, "port")) |
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256 | node->port = atoi (val); |
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257 | else if (!strcmp (var, "router-priority")) |
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258 | node->routerprio = atoi (val); |
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259 | else if (!strcmp (var, "connect")) |
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260 | { |
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261 | if (!strcmp (val, "ondemand")) |
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262 | node->connectmode = conf_node::C_ONDEMAND; |
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263 | else if (!strcmp (val, "never")) |
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264 | node->connectmode = conf_node::C_NEVER; |
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265 | else if (!strcmp (val, "always")) |
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266 | node->connectmode = conf_node::C_ALWAYS; |
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267 | else |
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268 | slog (L_WARN, |
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269 | _("illegal value for 'connectmode', use one of 'ondemand', 'never' or 'always', at '%s' line %d"), |
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270 | var, fname, lineno); |
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271 | } |
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272 | else if (!strcmp (var, "compress")) |
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273 | { |
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274 | if (!strcmp (val, "yes")) |
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275 | node->compress = true; |
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276 | else if (!strcmp (val, "no")) |
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277 | node->compress = false; |
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278 | else |
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279 | slog (L_WARN, |
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280 | _("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"), |
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281 | var, fname, lineno); |
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282 | } |
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283 | |
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284 | // unknown or misplaced |
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285 | else |
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286 | { |
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287 | slog (L_WARN, |
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288 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
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289 | var, fname, lineno); |
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290 | } |
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291 | } |
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292 | |
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293 | fclose (f); |
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294 | } |
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295 | else |
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296 | { |
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297 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
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298 | exit (1); |
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299 | } |
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300 | |
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301 | free (fname); |
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302 | |
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303 | fname = config_filename (prikeyfile, "hostkey"); |
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304 | |
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305 | f = fopen (fname, "r"); |
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306 | if (f) |
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307 | { |
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308 | rsa_key = RSA_new (); |
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309 | |
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310 | if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) |
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311 | { |
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312 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
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313 | slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
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314 | exit (1); |
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315 | } |
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316 | |
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317 | RSA_blinding_on (rsa_key, 0); |
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318 | |
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319 | fclose (f); |
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320 | } |
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321 | else |
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322 | { |
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323 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
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324 | |
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325 | if (need_keys) |
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326 | exit (1); |
|
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327 | } |
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328 | |
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329 | free (fname); |
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330 | } |
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331 | |
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332 | char *configuration::config_filename (const char *name, const char *dflt) |
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333 | { |
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334 | char *fname; |
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335 | |
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336 | asprintf (&fname, name ? name : dflt, ::thisnode); |
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337 | |
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338 | if (!ABSOLUTE_PATH (fname)) |
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339 | { |
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340 | char *rname = fname; |
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341 | asprintf (&fname, "%s/%s", confbase, rname); |
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342 | free (rname); |
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343 | } |
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344 | |
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345 | return fname; |
60 | return 0; |
346 | } |
61 | } |
347 | |
62 | |
348 | void |
63 | const char *strprotocol (u8 protocol) |
349 | configuration::print () |
|
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350 | { |
64 | { |
351 | printf (_("\nConfiguration\n\n")); |
65 | if (protocol & PROT_IPv4 ) return "rawip"; |
352 | printf (_("# of nodes: %d\n"), nodes.size ()); |
66 | if (protocol & PROT_ICMPv4) return "icmp"; |
353 | printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>"); |
67 | if (protocol & PROT_UDPv4 ) return "udp"; |
354 | printf (_("MTU: %d\n"), mtu); |
68 | if (protocol & PROT_TCPv4 ) return "tcp"; |
355 | printf (_("rekeying interval: %d\n"), rekey); |
69 | if (protocol & PROT_DNSv4 ) return "dns"; |
356 | printf (_("keepalive interval: %d\n"), keepalive); |
|
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357 | printf (_("interface: %s\n"), ifname); |
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358 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
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359 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1); |
|
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360 | printf ("\n"); |
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361 | |
70 | |
362 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
71 | return "<unknown>"; |
363 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
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364 | |
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365 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
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366 | (*i)->print (); |
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367 | |
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368 | printf ("\n"); |
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369 | } |
72 | } |
370 | |
73 | |
371 | void |
74 | void |
372 | conf_node::print () |
75 | conf_node::print () |
373 | { |
76 | { |
… | |
… | |
379 | connectmode == C_NEVER ? "never" : |
82 | connectmode == C_NEVER ? "never" : |
380 | connectmode == C_ALWAYS ? "always" : "", |
83 | connectmode == C_ALWAYS ? "always" : "", |
381 | nodename, |
84 | nodename, |
382 | hostname ? hostname : "", |
85 | hostname ? hostname : "", |
383 | hostname ? ":" : "", |
86 | hostname ? ":" : "", |
384 | hostname ? port : 0 |
87 | hostname ? udp_port : 0 |
385 | ); |
88 | ); |
386 | } |
89 | } |
387 | |
90 | |
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91 | conf_node::~conf_node () |
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92 | { |
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93 | if (rsa_key) |
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94 | RSA_free (rsa_key); |
|
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95 | |
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96 | free (nodename); |
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97 | free (hostname); |
|
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98 | } |
|
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99 | |
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100 | void configuration::init () |
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101 | { |
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102 | memset (this, 0, sizeof (*this)); |
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103 | |
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104 | mtu = DEFAULT_MTU; |
|
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105 | rekey = DEFAULT_REKEY; |
|
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106 | keepalive = DEFAULT_KEEPALIVE; |
|
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107 | llevel = L_INFO; |
|
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108 | ip_proto = IPPROTO_GRE; |
|
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109 | #if ENABLE_ICMP |
|
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110 | icmp_type = ICMP_ECHOREPLY; |
|
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111 | #endif |
|
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112 | |
|
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113 | default_node.udp_port = DEFAULT_UDPPORT; |
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114 | default_node.tcp_port = DEFAULT_UDPPORT; // ehrm |
|
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115 | default_node.connectmode = conf_node::C_ALWAYS; |
|
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116 | default_node.compress = true; |
|
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117 | default_node.protocols = PROT_UDPv4; |
|
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118 | } |
|
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119 | |
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120 | void configuration::cleanup() |
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121 | { |
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122 | if (rsa_key) |
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123 | RSA_free (rsa_key); |
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124 | |
|
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125 | rsa_key = 0; |
|
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126 | |
|
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127 | free (pidfilename); pidfilename = 0; |
|
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128 | free (ifname); ifname = 0; |
|
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129 | #if ENABLE_HTTP_PROXY |
|
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130 | free (proxy_host); proxy_host = 0; |
|
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131 | free (proxy_auth); proxy_auth = 0; |
|
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132 | #endif |
|
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133 | } |
|
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134 | |
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135 | void |
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136 | configuration::clear_config () |
|
|
137 | { |
|
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138 | for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i) |
|
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139 | delete *i; |
|
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140 | |
|
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141 | nodes.clear (); |
|
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142 | |
|
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143 | cleanup (); |
|
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144 | init (); |
|
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145 | } |
|
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146 | |
|
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147 | #define parse_bool(target,name,trueval,falseval) \ |
|
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148 | if (!strcmp (val, "yes")) target = trueval; \ |
|
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149 | else if (!strcmp (val, "no")) target = falseval; \ |
|
|
150 | else if (!strcmp (val, "true")) target = trueval; \ |
|
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151 | else if (!strcmp (val, "false")) target = falseval; \ |
|
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152 | else if (!strcmp (val, "on")) target = trueval; \ |
|
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153 | else if (!strcmp (val, "off")) target = falseval; \ |
|
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154 | else \ |
|
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155 | slog (L_WARN, \ |
|
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156 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
|
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157 | name, var, fname, lineno); |
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158 | |
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159 | void configuration::read_config (bool need_keys) |
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160 | { |
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161 | char *fname; |
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162 | FILE *f; |
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163 | |
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164 | clear_config (); |
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165 | |
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166 | asprintf (&fname, "%s/vped.conf", confbase); |
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167 | f = fopen (fname, "r"); |
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168 | |
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169 | if (f) |
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170 | { |
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171 | char line[16384]; |
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172 | int lineno = 0; |
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173 | char *var, *val; |
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174 | conf_node *node = &default_node; |
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175 | |
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176 | while (fgets (line, sizeof (line), f)) |
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177 | { |
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178 | lineno++; |
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179 | |
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180 | { |
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181 | char *end = line + strlen (line); |
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182 | |
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183 | while (*end < ' ' && end >= line) |
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184 | end--; |
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185 | |
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186 | *++end = 0; |
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187 | } |
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188 | |
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189 | char *tok = line; |
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190 | |
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191 | retry: |
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192 | var = strtok (tok, "\t ="); |
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193 | tok = 0; |
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194 | |
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195 | if (!var || !var[0]) |
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196 | continue; /* no tokens on this line */ |
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197 | |
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198 | if (var[0] == '#') |
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199 | continue; /* comment: ignore */ |
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200 | |
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201 | val = strtok (NULL, "\t\n\r ="); |
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202 | |
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203 | if (!val || val[0] == '#') |
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204 | { |
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205 | slog (L_WARN, |
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206 | _("no value for variable `%s', at '%s' line %d"), |
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207 | var, fname, lineno); |
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208 | break; |
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209 | } |
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210 | |
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211 | if (!strcmp (var, "on")) |
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212 | { |
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213 | if (!::thisnode |
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214 | || (val[0] == '!' && strcmp (val + 1, ::thisnode)) |
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215 | || !strcmp (val, ::thisnode)) |
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216 | goto retry; |
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217 | |
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218 | continue; |
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219 | } |
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220 | |
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221 | // truly global |
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222 | if (!strcmp (var, "loglevel")) |
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223 | { |
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224 | loglevel l = string_to_loglevel (val); |
|
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225 | |
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226 | if (l != L_NONE) |
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227 | llevel = l; |
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228 | else |
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229 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
|
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230 | } |
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231 | else if (!strcmp (var, "ip-proto")) |
|
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232 | ip_proto = atoi (val); |
|
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233 | else if (!strcmp (var, "icmp-type")) |
|
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234 | { |
|
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235 | #if ENABLE_ICMP |
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236 | icmp_type = atoi (val); |
|
|
237 | #endif |
|
|
238 | } |
|
|
239 | |
|
|
240 | // per config |
|
|
241 | else if (!strcmp (var, "node")) |
|
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242 | { |
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|
243 | default_node.id++; |
|
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244 | |
|
|
245 | node = new conf_node (default_node); |
|
|
246 | |
|
|
247 | nodes.push_back (node); |
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248 | |
|
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249 | node->nodename = strdup (val); |
|
|
250 | |
|
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251 | { |
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|
252 | char *fname; |
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|
253 | FILE *f; |
|
|
254 | |
|
|
255 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
|
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256 | |
|
|
257 | f = fopen (fname, "r"); |
|
|
258 | if (f) |
|
|
259 | { |
|
|
260 | node->rsa_key = RSA_new (); |
|
|
261 | |
|
|
262 | if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL)) |
|
|
263 | { |
|
|
264 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
|
|
265 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
|
|
266 | exit (EXIT_FAILURE); |
|
|
267 | } |
|
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268 | |
|
|
269 | require (RSA_blinding_on (node->rsa_key, 0)); |
|
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270 | |
|
|
271 | fclose (f); |
|
|
272 | } |
|
|
273 | else |
|
|
274 | { |
|
|
275 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
276 | |
|
|
277 | if (need_keys) |
|
|
278 | exit (EXIT_FAILURE); |
|
|
279 | } |
|
|
280 | |
|
|
281 | free (fname); |
|
|
282 | } |
|
|
283 | |
|
|
284 | if (::thisnode && !strcmp (node->nodename, ::thisnode)) |
|
|
285 | thisnode = node; |
|
|
286 | } |
|
|
287 | else if (!strcmp (var, "private-key")) |
|
|
288 | free (prikeyfile), prikeyfile = strdup (val); |
|
|
289 | else if (!strcmp (var, "ifpersist")) |
|
|
290 | { |
|
|
291 | parse_bool (ifpersist, "ifpersist", true, false); |
|
|
292 | } |
|
|
293 | else if (!strcmp (var, "ifname")) |
|
|
294 | free (ifname), ifname = strdup (val); |
|
|
295 | else if (!strcmp (var, "rekey")) |
|
|
296 | rekey = atoi (val); |
|
|
297 | else if (!strcmp (var, "keepalive")) |
|
|
298 | keepalive = atoi (val); |
|
|
299 | else if (!strcmp (var, "mtu")) |
|
|
300 | mtu = atoi (val); |
|
|
301 | else if (!strcmp (var, "if-up")) |
|
|
302 | free (script_if_up), script_if_up = strdup (val); |
|
|
303 | else if (!strcmp (var, "node-up")) |
|
|
304 | free (script_node_up), script_node_up = strdup (val); |
|
|
305 | else if (!strcmp (var, "node-down")) |
|
|
306 | free (script_node_down), script_node_down = strdup (val); |
|
|
307 | else if (!strcmp (var, "pid-file")) |
|
|
308 | free (pidfilename), pidfilename = strdup (val); |
|
|
309 | else if (!strcmp (var, "http-proxy-host")) |
|
|
310 | { |
|
|
311 | #if ENABLE_HTTP_PROXY |
|
|
312 | free (proxy_host), proxy_host = strdup (val); |
|
|
313 | #endif |
|
|
314 | } |
|
|
315 | else if (!strcmp (var, "http-proxy-port")) |
|
|
316 | { |
|
|
317 | #if ENABLE_HTTP_PROXY |
|
|
318 | proxy_port = atoi (val); |
|
|
319 | #endif |
|
|
320 | } |
|
|
321 | else if (!strcmp (var, "http-proxy-auth")) |
|
|
322 | { |
|
|
323 | #if ENABLE_HTTP_PROXY |
|
|
324 | proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val)); |
|
|
325 | #endif |
|
|
326 | } |
|
|
327 | |
|
|
328 | /* node-specific, non-defaultable */ |
|
|
329 | else if (node != &default_node && !strcmp (var, "hostname")) |
|
|
330 | free (node->hostname), node->hostname = strdup (val); |
|
|
331 | |
|
|
332 | /* node-specific, defaultable */ |
|
|
333 | else if (!strcmp (var, "udp-port")) |
|
|
334 | node->udp_port = atoi (val); |
|
|
335 | else if (!strcmp (var, "tcp-port")) |
|
|
336 | node->tcp_port = atoi (val); |
|
|
337 | else if (!strcmp (var, "dns-port")) |
|
|
338 | node->dns_port = atoi (val); |
|
|
339 | else if (!strcmp (var, "router-priority")) |
|
|
340 | node->routerprio = atoi (val); |
|
|
341 | else if (!strcmp (var, "connect")) |
|
|
342 | { |
|
|
343 | if (!strcmp (val, "ondemand")) |
|
|
344 | node->connectmode = conf_node::C_ONDEMAND; |
|
|
345 | else if (!strcmp (val, "never")) |
|
|
346 | node->connectmode = conf_node::C_NEVER; |
|
|
347 | else if (!strcmp (val, "always")) |
|
|
348 | node->connectmode = conf_node::C_ALWAYS; |
|
|
349 | else if (!strcmp (val, "disabled")) |
|
|
350 | node->connectmode = conf_node::C_DISABLED; |
|
|
351 | else |
|
|
352 | slog (L_WARN, |
|
|
353 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
|
|
354 | var, fname, lineno); |
|
|
355 | } |
|
|
356 | else if (!strcmp (var, "inherit-tos")) |
|
|
357 | { |
|
|
358 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
|
|
359 | } |
|
|
360 | else if (!strcmp (var, "compress")) |
|
|
361 | { |
|
|
362 | parse_bool (node->compress, "compress", true, false); |
|
|
363 | } |
|
|
364 | // all these bool options really really cost a lot of executable size! |
|
|
365 | else if (!strcmp (var, "enable-tcp")) |
|
|
366 | { |
|
|
367 | #if ENABLE_TCP |
|
|
368 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
|
|
369 | #endif |
|
|
370 | } |
|
|
371 | else if (!strcmp (var, "enable-icmp")) |
|
|
372 | { |
|
|
373 | #if ENABLE_ICMP |
|
|
374 | u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v; |
|
|
375 | #endif |
|
|
376 | } |
|
|
377 | else if (!strcmp (var, "enable-dns")) |
|
|
378 | { |
|
|
379 | #if ENABLE_DNS |
|
|
380 | u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) | v; |
|
|
381 | #endif |
|
|
382 | } |
|
|
383 | else if (!strcmp (var, "enable-udp")) |
|
|
384 | { |
|
|
385 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
|
|
386 | } |
|
|
387 | else if (!strcmp (var, "enable-rawip")) |
|
|
388 | {; |
|
|
389 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
|
|
390 | } |
|
|
391 | |
|
|
392 | // unknown or misplaced |
|
|
393 | else |
|
|
394 | slog (L_WARN, |
|
|
395 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
|
|
396 | var, fname, lineno); |
|
|
397 | } |
|
|
398 | |
|
|
399 | fclose (f); |
|
|
400 | } |
|
|
401 | else |
|
|
402 | { |
|
|
403 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
|
|
404 | exit (EXIT_FAILURE); |
|
|
405 | } |
|
|
406 | |
|
|
407 | free (fname); |
|
|
408 | |
|
|
409 | fname = config_filename (prikeyfile, "hostkey"); |
|
|
410 | |
|
|
411 | f = fopen (fname, "r"); |
|
|
412 | if (f) |
|
|
413 | { |
|
|
414 | rsa_key = RSA_new (); |
|
|
415 | |
|
|
416 | if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL)) |
|
|
417 | { |
|
|
418 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
|
|
419 | slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
|
|
420 | exit (EXIT_FAILURE); |
|
|
421 | } |
|
|
422 | |
|
|
423 | require (RSA_blinding_on (rsa_key, 0)); |
|
|
424 | |
|
|
425 | fclose (f); |
|
|
426 | } |
|
|
427 | else |
|
|
428 | { |
|
|
429 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
430 | |
|
|
431 | if (need_keys) |
|
|
432 | exit (EXIT_FAILURE); |
|
|
433 | } |
|
|
434 | |
|
|
435 | if (need_keys && ::thisnode |
|
|
436 | && rsa_key && thisnode && thisnode->rsa_key) |
|
|
437 | if (BN_cmp (rsa_key->n, thisnode->rsa_key->n) != 0 |
|
|
438 | || BN_cmp (rsa_key->e, thisnode->rsa_key->e) != 0) |
|
|
439 | { |
|
|
440 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
|
|
441 | exit (EXIT_FAILURE); |
|
|
442 | } |
|
|
443 | |
|
|
444 | free (fname); |
|
|
445 | } |
|
|
446 | |
|
|
447 | char *configuration::config_filename (const char *name, const char *dflt) |
|
|
448 | { |
|
|
449 | char *fname; |
|
|
450 | |
|
|
451 | asprintf (&fname, name ? name : dflt, ::thisnode); |
|
|
452 | |
|
|
453 | if (!ABSOLUTE_PATH (fname)) |
|
|
454 | { |
|
|
455 | char *rname = fname; |
|
|
456 | asprintf (&fname, "%s/%s", confbase, rname); |
|
|
457 | free (rname); |
|
|
458 | } |
|
|
459 | |
|
|
460 | return fname; |
|
|
461 | } |
|
|
462 | |
|
|
463 | void |
|
|
464 | configuration::print () |
|
|
465 | { |
|
|
466 | printf (_("\nConfiguration\n\n")); |
|
|
467 | printf (_("# of nodes: %d\n"), nodes.size ()); |
|
|
468 | printf (_("this node: %s\n"), thisnode ? thisnode->nodename : "<unset>"); |
|
|
469 | printf (_("MTU: %d\n"), mtu); |
|
|
470 | printf (_("rekeying interval: %d\n"), rekey); |
|
|
471 | printf (_("keepalive interval: %d\n"), keepalive); |
|
|
472 | printf (_("interface: %s\n"), ifname); |
|
|
473 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
|
|
474 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
|
|
475 | printf ("\n"); |
|
|
476 | |
|
|
477 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
|
|
478 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
|
|
479 | |
|
|
480 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
|
|
481 | (*i)->print (); |
|
|
482 | |
|
|
483 | printf ("\n"); |
|
|
484 | } |
|
|
485 | |
|
|
486 | configuration::configuration () |
|
|
487 | { |
|
|
488 | init (); |
|
|
489 | } |
|
|
490 | |
|
|
491 | configuration::~configuration () |
|
|
492 | { |
|
|
493 | cleanup (); |
|
|
494 | } |
|
|
495 | |
|
|
496 | |