Mercurial > dropbear
annotate svr-runopts.c @ 84:29a5c7c62350
default initialisers for mp_ints
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 17 Aug 2004 10:20:20 +0000 |
parents | ac96bc733e71 |
children | dc68f7624f17 |
rev | line source |
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1 /* |
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2 * Dropbear - a SSH2 server |
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3 * |
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4 * Copyright (c) 2002,2003 Matt Johnston |
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5 * All rights reserved. |
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6 * |
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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8 * of this software and associated documentation files (the "Software"), to deal |
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9 * in the Software without restriction, including without limitation the rights |
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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11 * copies of the Software, and to permit persons to whom the Software is |
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12 * furnished to do so, subject to the following conditions: |
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13 * |
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14 * The above copyright notice and this permission notice shall be included in |
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15 * all copies or substantial portions of the Software. |
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16 * |
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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23 * SOFTWARE. */ |
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24 |
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25 #include "includes.h" |
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26 #include "runopts.h" |
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27 #include "signkey.h" |
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28 #include "buffer.h" |
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29 #include "dbutil.h" |
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30 #include "algo.h" |
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31 |
24 | 32 svr_runopts svr_opts; /* GLOBAL */ |
33 | |
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34 static sign_key * loadhostkeys(const char * dsskeyfile, |
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35 const char * rsakeyfile); |
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36 static void printhelp(const char * progname); |
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37 |
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38 static void printhelp(const char * progname) { |
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39 |
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40 fprintf(stderr, "Dropbear sshd v%s\n" |
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41 "Usage: %s [options]\n" |
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42 "Options are:\n" |
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43 "-b bannerfile Display the contents of bannerfile" |
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44 " before user login\n" |
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45 " (default: none)\n" |
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46 #ifdef DROPBEAR_DSS |
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47 "-d dsskeyfile Use dsskeyfile for the dss host key\n" |
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48 " (default: %s)\n" |
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49 #endif |
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50 #ifdef DROPBEAR_RSA |
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51 "-r rsakeyfile Use rsakeyfile for the rsa host key\n" |
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52 " (default: %s)\n" |
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53 #endif |
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54 "-F Don't fork into background\n" |
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55 #ifdef DISABLE_SYSLOG |
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56 "(Syslog support not compiled in, using stderr)\n" |
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57 #else |
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58 "-E Log to stderr rather than syslog\n" |
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59 #endif |
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60 #ifdef DO_MOTD |
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61 "-m Don't display the motd on login\n" |
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62 #endif |
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63 "-w Disallow root logins\n" |
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64 #ifdef ENABLE_SVR_PASSWORD_AUTH |
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65 "-s Disable password logins\n" |
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66 "-g Disable password logins for root\n" |
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67 #endif |
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68 #ifndef DISABLE_LOCALTCPFWD |
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69 "-j Disable local port forwarding\n" |
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70 #endif |
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71 #ifndef DISABLE_REMOTETCPFWD |
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72 "-k Disable remote port forwarding\n" |
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73 #endif |
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74 "-p port Listen on specified tcp port, up to %d can be specified\n" |
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75 " (default %d if none specified)\n" |
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76 #ifdef INETD_MODE |
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77 "-i Start for inetd\n" |
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78 #endif |
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79 ,DROPBEAR_VERSION, progname, |
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80 #ifdef DROPBEAR_DSS |
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81 DSS_PRIV_FILENAME, |
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82 #endif |
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83 #ifdef DROPBEAR_RSA |
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84 RSA_PRIV_FILENAME, |
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85 #endif |
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86 DROPBEAR_MAX_PORTS, DROPBEAR_PORT); |
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87 } |
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88 |
24 | 89 void svr_getopts(int argc, char ** argv) { |
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90 |
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91 unsigned int i; |
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92 char ** next = 0; |
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93 unsigned int portnum = 0; |
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94 char *portstring[DROPBEAR_MAX_PORTS]; |
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95 unsigned int longport; |
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96 |
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97 /* see printhelp() for options */ |
24 | 98 svr_opts.rsakeyfile = NULL; |
99 svr_opts.dsskeyfile = NULL; | |
100 svr_opts.bannerfile = NULL; | |
101 svr_opts.banner = NULL; | |
102 svr_opts.forkbg = 1; | |
103 svr_opts.norootlogin = 0; | |
104 svr_opts.noauthpass = 0; | |
105 svr_opts.norootpass = 0; | |
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106 svr_opts.inetdmode = 0; |
24 | 107 opts.nolocaltcp = 0; |
108 opts.noremotetcp = 0; | |
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109 /* not yet |
33 | 110 opts.ipv4 = 1; |
111 opts.ipv6 = 1; | |
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112 */ |
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113 #ifdef DO_MOTD |
24 | 114 svr_opts.domotd = 1; |
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115 #endif |
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116 #ifndef DISABLE_SYSLOG |
24 | 117 svr_opts.usingsyslog = 1; |
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118 #endif |
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119 |
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120 for (i = 1; i < (unsigned int)argc; i++) { |
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121 if (next) { |
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122 *next = argv[i]; |
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123 if (*next == NULL) { |
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124 dropbear_exit("Invalid null argument"); |
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125 } |
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126 next = 0x00; |
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127 continue; |
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128 } |
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129 |
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130 if (argv[i][0] == '-') { |
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131 switch (argv[i][1]) { |
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132 case 'b': |
24 | 133 next = &svr_opts.bannerfile; |
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134 break; |
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135 #ifdef DROPBEAR_DSS |
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136 case 'd': |
24 | 137 next = &svr_opts.dsskeyfile; |
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138 break; |
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139 #endif |
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140 #ifdef DROPBEAR_RSA |
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141 case 'r': |
24 | 142 next = &svr_opts.rsakeyfile; |
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143 break; |
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144 #endif |
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145 case 'F': |
24 | 146 svr_opts.forkbg = 0; |
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147 break; |
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148 #ifndef DISABLE_SYSLOG |
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149 case 'E': |
24 | 150 svr_opts.usingsyslog = 0; |
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151 break; |
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152 #endif |
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153 #ifndef DISABLE_LOCALTCPFWD |
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154 case 'j': |
24 | 155 opts.nolocaltcp = 1; |
4
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156 break; |
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157 #endif |
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158 #ifndef DISABLE_REMOTETCPFWD |
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159 case 'k': |
24 | 160 opts.noremotetcp = 1; |
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161 break; |
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162 #endif |
71
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163 #ifdef INETD_MODE |
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164 case 'i': |
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165 svr_opts.inetdmode = 1; |
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166 break; |
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167 #endif |
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168 case 'p': |
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169 if (portnum < DROPBEAR_MAX_PORTS) { |
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170 portstring[portnum] = NULL; |
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171 next = &portstring[portnum]; |
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172 portnum++; |
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173 } |
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174 break; |
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175 #ifdef DO_MOTD |
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176 /* motd is displayed by default, -m turns it off */ |
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177 case 'm': |
24 | 178 svr_opts.domotd = 0; |
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179 break; |
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180 #endif |
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181 case 'w': |
24 | 182 svr_opts.norootlogin = 1; |
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183 break; |
68
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184 #ifdef ENABLE_SVR_PASSWORD_AUTH |
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185 case 's': |
24 | 186 svr_opts.noauthpass = 1; |
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187 break; |
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188 case 'g': |
24 | 189 svr_opts.norootpass = 1; |
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190 break; |
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191 #endif |
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192 case 'h': |
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193 printhelp(argv[0]); |
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194 exit(EXIT_FAILURE); |
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195 break; |
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196 /* |
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197 case '4': |
24 | 198 svr_opts.ipv4 = 0; |
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199 break; |
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200 case '6': |
24 | 201 svr_opts.ipv6 = 0; |
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202 break; |
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203 */ |
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204 default: |
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205 fprintf(stderr, "Unknown argument %s\n", argv[i]); |
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206 printhelp(argv[0]); |
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207 exit(EXIT_FAILURE); |
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208 break; |
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209 } |
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210 } |
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211 } |
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212 |
24 | 213 if (svr_opts.dsskeyfile == NULL) { |
214 svr_opts.dsskeyfile = DSS_PRIV_FILENAME; | |
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215 } |
24 | 216 if (svr_opts.rsakeyfile == NULL) { |
217 svr_opts.rsakeyfile = RSA_PRIV_FILENAME; | |
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218 } |
24 | 219 svr_opts.hostkey = loadhostkeys(svr_opts.dsskeyfile, svr_opts.rsakeyfile); |
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220 |
24 | 221 if (svr_opts.bannerfile) { |
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222 struct stat buf; |
24 | 223 if (stat(svr_opts.bannerfile, &buf) != 0) { |
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224 dropbear_exit("Error opening banner file '%s'", |
24 | 225 svr_opts.bannerfile); |
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226 } |
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227 |
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228 if (buf.st_size > MAX_BANNER_SIZE) { |
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229 dropbear_exit("Banner file too large, max is %d bytes", |
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230 MAX_BANNER_SIZE); |
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231 } |
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232 |
24 | 233 svr_opts.banner = buf_new(buf.st_size); |
234 if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) { | |
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235 dropbear_exit("Error reading banner file '%s'", |
24 | 236 svr_opts.bannerfile); |
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237 } |
24 | 238 buf_setpos(svr_opts.banner, 0); |
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239 } |
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240 |
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241 /* not yet |
24 | 242 if (!(svr_opts.ipv4 || svr_opts.ipv6)) { |
4
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243 fprintf(stderr, "You can't disable ipv4 and ipv6.\n"); |
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244 exit(1); |
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245 } |
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246 */ |
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247 |
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248 /* create the array of listening ports */ |
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249 if (portnum == 0) { |
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250 /* non specified */ |
24 | 251 svr_opts.portcount = 1; |
252 svr_opts.ports = m_malloc(sizeof(uint16_t)); | |
253 svr_opts.ports[0] = DROPBEAR_PORT; | |
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254 } else { |
24 | 255 svr_opts.portcount = portnum; |
256 svr_opts.ports = (uint16_t*)m_malloc(sizeof(uint16_t)*portnum); | |
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257 for (i = 0; i < portnum; i++) { |
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258 if (portstring[i]) { |
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259 longport = atoi(portstring[i]); |
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260 if (longport <= 65535 && longport > 0) { |
24 | 261 svr_opts.ports[i] = (uint16_t)longport; |
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262 continue; |
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263 } |
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264 } |
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265 fprintf(stderr, "Bad port '%s'\n", |
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266 portstring[i] ? portstring[i] : "null"); |
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267 } |
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268 } |
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269 |
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270 } |
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271 |
47 | 272 static void disablekey(int type, const char* filename) { |
4
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273 |
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274 int i; |
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275 |
47 | 276 for (i = 0; sshhostkey[i].name != NULL; i++) { |
277 if (sshhostkey[i].val == type) { | |
278 sshhostkey[i].usable = 0; | |
279 break; | |
280 } | |
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281 } |
47 | 282 fprintf(stderr, "Failed reading '%s', disabling %s\n", filename, |
283 type == DROPBEAR_SIGNKEY_DSS ? "DSS" : "RSA"); | |
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284 } |
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285 |
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286 static sign_key * loadhostkeys(const char * dsskeyfile, |
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287 const char * rsakeyfile) { |
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288 |
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289 sign_key * hostkey; |
47 | 290 int ret; |
291 int type; | |
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292 |
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293 TRACE(("enter loadhostkeys")); |
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294 |
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295 hostkey = new_sign_key(); |
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296 |
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297 #ifdef DROPBEAR_RSA |
47 | 298 type = DROPBEAR_SIGNKEY_RSA; |
299 ret = readhostkey(rsakeyfile, hostkey, &type); | |
300 if (ret == DROPBEAR_FAILURE) { | |
301 disablekey(DROPBEAR_SIGNKEY_RSA, rsakeyfile); | |
302 } | |
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303 #endif |
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304 #ifdef DROPBEAR_DSS |
47 | 305 type = DROPBEAR_SIGNKEY_RSA; |
306 ret = readhostkey(dsskeyfile, hostkey, &type); | |
307 if (ret == DROPBEAR_FAILURE) { | |
308 disablekey(DROPBEAR_SIGNKEY_DSS, dsskeyfile); | |
309 } | |
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310 #endif |
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311 |
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312 if ( 1 |
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313 #ifdef DROPBEAR_DSS |
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314 && hostkey->dsskey == NULL |
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315 #endif |
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316 #ifdef DROPBEAR_RSA |
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317 && hostkey->rsakey == NULL |
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318 #endif |
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319 ) { |
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320 dropbear_exit("No hostkeys available"); |
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321 } |
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322 |
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323 TRACE(("leave loadhostkeys")); |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
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324 return hostkey; |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
325 } |