Mercurial > dropbear
annotate svr-runopts.c @ 1848:84b664071c7d
Upload config.log on failure
Change tests to avoid double-negative for skipcheck
Skip some actions when running under act
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Tue, 19 Oct 2021 11:50:12 +0800 |
| parents | 94dc11094e26 |
| children | 35d504d59c05 |
| 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" |
| 795 | 31 #include "ecdsa.h" |
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32 |
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33 #include <grp.h> |
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34 |
| 24 | 35 svr_runopts svr_opts; /* GLOBAL */ |
| 36 | |
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37 static void printhelp(const char * progname); |
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38 static void addportandaddress(const char* spec); |
| 795 | 39 static void loadhostkey(const char *keyfile, int fatal_duplicate); |
| 40 static void addhostkey(const char *keyfile); | |
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41 |
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42 static void printhelp(const char * progname) { |
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43 |
| 716 | 44 fprintf(stderr, "Dropbear server v%s https://matt.ucc.asn.au/dropbear/dropbear.html\n" |
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45 "Usage: %s [options]\n" |
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46 "-b bannerfile Display the contents of bannerfile" |
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47 " before user login\n" |
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48 " (default: none)\n" |
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49 "-r keyfile Specify hostkeys (repeatable)\n" |
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50 " defaults: \n" |
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51 #if DROPBEAR_DSS |
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52 " - dss %s\n" |
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53 #endif |
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54 #if DROPBEAR_RSA |
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55 " - rsa %s\n" |
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56 #endif |
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57 #if DROPBEAR_ECDSA |
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58 " - ecdsa %s\n" |
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59 #endif |
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60 #if DROPBEAR_ED25519 |
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61 " - ed25519 %s\n" |
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62 #endif |
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63 #if DROPBEAR_DELAY_HOSTKEY |
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64 "-R Create hostkeys as required\n" |
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65 #endif |
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66 "-F Don't fork into background\n" |
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67 "-e Pass on server process environment to child process\n" |
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68 #ifdef DISABLE_SYSLOG |
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69 "(Syslog support not compiled in, using stderr)\n" |
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70 #else |
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71 "-E Log to stderr rather than syslog\n" |
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72 #endif |
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73 #if DO_MOTD |
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74 "-m Don't display the motd on login\n" |
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75 #endif |
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76 "-w Disallow root logins\n" |
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77 #ifdef HAVE_GETGROUPLIST |
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78 "-G Restrict logins to members of specified group\n" |
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79 #endif |
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80 #if DROPBEAR_SVR_PASSWORD_AUTH || DROPBEAR_SVR_PAM_AUTH |
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81 "-s Disable password logins\n" |
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82 "-g Disable password logins for root\n" |
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83 "-B Allow blank password logins\n" |
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84 #endif |
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85 "-T Maximum authentication tries (default %d)\n" |
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86 #if DROPBEAR_SVR_LOCALTCPFWD |
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87 "-j Disable local port forwarding\n" |
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88 #endif |
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89 #if DROPBEAR_SVR_REMOTETCPFWD |
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90 "-k Disable remote port forwarding\n" |
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91 "-a Allow connections to forwarded ports from any host\n" |
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92 "-c command Force executed command\n" |
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93 #endif |
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94 "-p [address:]port\n" |
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95 " Listen on specified tcp port (and optionally address),\n" |
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96 " up to %d can be specified\n" |
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97 " (default port is %s if none specified)\n" |
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98 "-P PidFile Create pid file PidFile\n" |
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99 " (default %s)\n" |
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100 #if INETD_MODE |
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101 "-i Start for inetd\n" |
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102 #endif |
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103 "-W <receive_window_buffer> (default %d, larger may be faster, max 10MB)\n" |
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104 "-K <keepalive> (0 is never, default %d, in seconds)\n" |
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105 "-I <idle_timeout> (0 is never, default %d, in seconds)\n" |
| 1654 | 106 #if DROPBEAR_PLUGIN |
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107 "-A <authplugin>[,<options>]\n" |
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108 " Enable external public key auth through <authplugin>\n" |
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109 #endif |
| 946 | 110 "-V Version\n" |
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111 #if DEBUG_TRACE |
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112 "-v verbose (compiled with DEBUG_TRACE)\n" |
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113 #endif |
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114 ,DROPBEAR_VERSION, progname, |
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115 #if DROPBEAR_DSS |
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116 DSS_PRIV_FILENAME, |
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117 #endif |
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118 #if DROPBEAR_RSA |
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119 RSA_PRIV_FILENAME, |
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120 #endif |
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121 #if DROPBEAR_ECDSA |
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122 ECDSA_PRIV_FILENAME, |
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123 #endif |
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124 #if DROPBEAR_ED25519 |
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125 ED25519_PRIV_FILENAME, |
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126 #endif |
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127 MAX_AUTH_TRIES, |
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128 DROPBEAR_MAX_PORTS, DROPBEAR_DEFPORT, DROPBEAR_PIDFILE, |
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129 DEFAULT_RECV_WINDOW, DEFAULT_KEEPALIVE, DEFAULT_IDLE_TIMEOUT); |
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130 } |
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131 |
| 24 | 132 void svr_getopts(int argc, char ** argv) { |
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133 |
| 1164 | 134 unsigned int i, j; |
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135 char ** next = NULL; |
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136 int nextisport = 0; |
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137 char* recv_window_arg = NULL; |
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138 char* keepalive_arg = NULL; |
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139 char* idle_timeout_arg = NULL; |
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140 char* maxauthtries_arg = NULL; |
| 795 | 141 char* keyfile = NULL; |
| 1164 | 142 char c; |
| 1654 | 143 #if DROPBEAR_PLUGIN |
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144 char* pubkey_plugin = NULL; |
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145 #endif |
| 795 | 146 |
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147 |
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148 /* see printhelp() for options */ |
| 24 | 149 svr_opts.bannerfile = NULL; |
| 150 svr_opts.banner = NULL; | |
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151 svr_opts.forced_command = NULL; |
| 24 | 152 svr_opts.forkbg = 1; |
| 153 svr_opts.norootlogin = 0; | |
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154 #ifdef HAVE_GETGROUPLIST |
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155 svr_opts.restrict_group = NULL; |
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156 svr_opts.restrict_group_gid = 0; |
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157 #endif |
| 24 | 158 svr_opts.noauthpass = 0; |
| 159 svr_opts.norootpass = 0; | |
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160 svr_opts.allowblankpass = 0; |
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161 svr_opts.maxauthtries = MAX_AUTH_TRIES; |
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162 svr_opts.inetdmode = 0; |
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163 svr_opts.portcount = 0; |
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164 svr_opts.hostkey = NULL; |
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165 svr_opts.delay_hostkey = 0; |
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166 svr_opts.pidfile = DROPBEAR_PIDFILE; |
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167 #if DROPBEAR_SVR_LOCALTCPFWD |
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168 svr_opts.nolocaltcp = 0; |
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169 #endif |
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170 #if DROPBEAR_SVR_REMOTETCPFWD |
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171 svr_opts.noremotetcp = 0; |
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172 #endif |
| 1654 | 173 #if DROPBEAR_PLUGIN |
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174 svr_opts.pubkey_plugin = NULL; |
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175 svr_opts.pubkey_plugin_options = NULL; |
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176 #endif |
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177 svr_opts.pass_on_env = 0; |
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178 |
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179 #ifndef DISABLE_ZLIB |
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180 opts.compress_mode = DROPBEAR_COMPRESS_DELAYED; |
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181 #endif |
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182 |
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183 /* not yet |
| 33 | 184 opts.ipv4 = 1; |
| 185 opts.ipv6 = 1; | |
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186 */ |
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187 #if DO_MOTD |
| 24 | 188 svr_opts.domotd = 1; |
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189 #endif |
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190 #ifndef DISABLE_SYSLOG |
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191 opts.usingsyslog = 1; |
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192 #endif |
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193 opts.recv_window = DEFAULT_RECV_WINDOW; |
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194 opts.keepalive_secs = DEFAULT_KEEPALIVE; |
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195 opts.idle_timeout_secs = DEFAULT_IDLE_TIMEOUT; |
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196 |
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197 #if DROPBEAR_SVR_REMOTETCPFWD |
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198 opts.listen_fwd_all = 0; |
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199 #endif |
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200 |
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201 for (i = 1; i < (unsigned int)argc; i++) { |
| 1164 | 202 if (argv[i][0] != '-' || argv[i][1] == '\0') |
| 203 dropbear_exit("Invalid argument: %s", argv[i]); | |
| 795 | 204 |
| 1164 | 205 for (j = 1; (c = argv[i][j]) != '\0' && !next && !nextisport; j++) { |
|
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206 switch (c) { |
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207 case 'b': |
| 24 | 208 next = &svr_opts.bannerfile; |
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209 break; |
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210 case 'c': |
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211 next = &svr_opts.forced_command; |
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212 break; |
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213 case 'd': |
| 795 | 214 case 'r': |
| 215 next = &keyfile; | |
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216 break; |
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217 case 'R': |
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218 svr_opts.delay_hostkey = 1; |
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219 break; |
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220 case 'F': |
| 24 | 221 svr_opts.forkbg = 0; |
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222 break; |
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223 #ifndef DISABLE_SYSLOG |
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224 case 'E': |
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225 opts.usingsyslog = 0; |
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226 break; |
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227 #endif |
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228 case 'e': |
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229 svr_opts.pass_on_env = 1; |
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230 break; |
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231 |
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232 #if DROPBEAR_SVR_LOCALTCPFWD |
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233 case 'j': |
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234 svr_opts.nolocaltcp = 1; |
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235 break; |
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236 #endif |
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237 #if DROPBEAR_SVR_REMOTETCPFWD |
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238 case 'k': |
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239 svr_opts.noremotetcp = 1; |
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240 break; |
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241 case 'a': |
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242 opts.listen_fwd_all = 1; |
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243 break; |
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244 #endif |
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245 #if INETD_MODE |
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246 case 'i': |
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247 svr_opts.inetdmode = 1; |
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248 break; |
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249 #endif |
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250 case 'p': |
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251 nextisport = 1; |
|
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252 break; |
|
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253 case 'P': |
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254 next = &svr_opts.pidfile; |
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255 break; |
|
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256 #if DO_MOTD |
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257 /* motd is displayed by default, -m turns it off */ |
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258 case 'm': |
| 24 | 259 svr_opts.domotd = 0; |
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260 break; |
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261 #endif |
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262 case 'w': |
| 24 | 263 svr_opts.norootlogin = 1; |
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264 break; |
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265 #ifdef HAVE_GETGROUPLIST |
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266 case 'G': |
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267 next = &svr_opts.restrict_group; |
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268 break; |
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269 #endif |
|
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270 case 'W': |
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271 next = &recv_window_arg; |
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272 break; |
|
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273 case 'K': |
|
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274 next = &keepalive_arg; |
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275 break; |
|
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276 case 'I': |
|
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277 next = &idle_timeout_arg; |
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278 break; |
|
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279 case 'T': |
|
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280 next = &maxauthtries_arg; |
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281 break; |
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282 #if DROPBEAR_SVR_PASSWORD_AUTH || DROPBEAR_SVR_PAM_AUTH |
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283 case 's': |
| 24 | 284 svr_opts.noauthpass = 1; |
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285 break; |
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286 case 'g': |
| 24 | 287 svr_opts.norootpass = 1; |
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288 break; |
|
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Allow configuring "allow blank password option" at runtime
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289 case 'B': |
|
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290 svr_opts.allowblankpass = 1; |
|
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291 break; |
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292 #endif |
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293 case 'h': |
|
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294 printhelp(argv[0]); |
| 946 | 295 exit(EXIT_SUCCESS); |
|
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296 break; |
|
442
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297 case 'u': |
|
446
2cd2edfa11ee
Just use /dev/urandom since that's what everyone ends up using anyway.
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298 /* backwards compatibility with old urandom option */ |
|
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299 break; |
| 1654 | 300 #if DROPBEAR_PLUGIN |
|
1653
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External Public-Key Authentication API (#72)
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301 case 'A': |
|
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302 next = &pubkey_plugin; |
|
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303 break; |
|
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304 #endif |
|
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305 #if DEBUG_TRACE |
|
94
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DEBUG_TRACE now only triggers with -v on the cmdline
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306 case 'v': |
|
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|
307 debug_trace = 1; |
|
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|
308 break; |
|
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diff
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|
309 #endif |
| 946 | 310 case 'V': |
|
948
f92eb625c48d
- Don't use multichar constants since recent gcc complains
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diff
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|
311 print_version(); |
| 946 | 312 exit(EXIT_SUCCESS); |
| 313 break; | |
|
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|
314 default: |
| 1164 | 315 fprintf(stderr, "Invalid option -%c\n", c); |
|
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316 printhelp(argv[0]); |
|
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|
317 exit(EXIT_FAILURE); |
|
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|
318 break; |
|
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|
319 } |
|
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|
320 } |
| 1164 | 321 |
| 322 if (!next && !nextisport) | |
| 323 continue; | |
| 324 | |
| 325 if (c == '\0') { | |
| 326 i++; | |
| 327 j = 0; | |
| 328 if (!argv[i]) { | |
| 329 dropbear_exit("Missing argument"); | |
| 330 } | |
| 331 } | |
| 332 | |
| 333 if (nextisport) { | |
| 334 addportandaddress(&argv[i][j]); | |
| 335 nextisport = 0; | |
| 336 } else if (next) { | |
| 337 *next = &argv[i][j]; | |
| 338 if (*next == NULL) { | |
| 339 dropbear_exit("Invalid null argument"); | |
| 340 } | |
|
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e8f67918fdc9
when pointer, use NULL instead of 0
Francois Perrad <francois.perrad@gadz.org>
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1295
diff
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|
341 next = NULL; |
| 1164 | 342 |
| 343 if (keyfile) { | |
| 344 addhostkey(keyfile); | |
| 345 keyfile = NULL; | |
| 346 } | |
| 347 } | |
|
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|
348 } |
|
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|
349 |
|
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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94
diff
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|
350 /* Set up listening ports */ |
|
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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diff
changeset
|
351 if (svr_opts.portcount == 0) { |
|
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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94
diff
changeset
|
352 svr_opts.ports[0] = m_strdup(DROPBEAR_DEFPORT); |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
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271
diff
changeset
|
353 svr_opts.addresses[0] = m_strdup(DROPBEAR_DEFADDRESS); |
|
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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parents:
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diff
changeset
|
354 svr_opts.portcount = 1; |
|
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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94
diff
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|
355 } |
|
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
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diff
changeset
|
356 |
| 24 | 357 if (svr_opts.bannerfile) { |
|
4
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|
358 struct stat buf; |
| 24 | 359 if (stat(svr_opts.bannerfile, &buf) != 0) { |
|
4
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|
360 dropbear_exit("Error opening banner file '%s'", |
| 24 | 361 svr_opts.bannerfile); |
|
4
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|
362 } |
|
fe6bca95afa7
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|
363 |
|
fe6bca95afa7
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parents:
diff
changeset
|
364 if (buf.st_size > MAX_BANNER_SIZE) { |
|
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parents:
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changeset
|
365 dropbear_exit("Banner file too large, max is %d bytes", |
|
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parents:
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changeset
|
366 MAX_BANNER_SIZE); |
|
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|
367 } |
|
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|
368 |
| 24 | 369 svr_opts.banner = buf_new(buf.st_size); |
| 370 if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) { | |
|
4
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|
371 dropbear_exit("Error reading banner file '%s'", |
| 24 | 372 svr_opts.bannerfile); |
|
4
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|
373 } |
| 24 | 374 buf_setpos(svr_opts.banner, 0); |
|
4
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parents:
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|
375 } |
|
1534
ed930fd6f60f
Added the -G option to allow logins only for users that are members of a certain group. This allows finer control of an instance on who can and cannot login over a certain instance (e.g. password and not key). Needs double-checking and ensuring it meets platform requirements.
stellarpower <stellarpower@googlemail.com>
parents:
1499
diff
changeset
|
376 |
|
1551
1acbdf64088e
add guard HAVE_GETGROUPLIST
Matt Johnston <matt@ucc.asn.au>
parents:
1538
diff
changeset
|
377 #ifdef HAVE_GETGROUPLIST |
|
1537
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
378 if (svr_opts.restrict_group) { |
|
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Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
379 struct group *restrictedgroup = getgrnam(svr_opts.restrict_group); |
|
1534
ed930fd6f60f
Added the -G option to allow logins only for users that are members of a certain group. This allows finer control of an instance on who can and cannot login over a certain instance (e.g. password and not key). Needs double-checking and ensuring it meets platform requirements.
stellarpower <stellarpower@googlemail.com>
parents:
1499
diff
changeset
|
380 |
|
1537
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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changeset
|
381 if (restrictedgroup){ |
|
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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1535
diff
changeset
|
382 svr_opts.restrict_group_gid = restrictedgroup->gr_gid; |
|
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
383 } else { |
|
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Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
384 dropbear_exit("Cannot restrict logins to group '%s' as the group does not exist", svr_opts.restrict_group); |
|
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
385 } |
|
6a83b1944432
Fix restricted group code for BSDs, move to separate function
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parents:
1535
diff
changeset
|
386 } |
|
1551
1acbdf64088e
add guard HAVE_GETGROUPLIST
Matt Johnston <matt@ucc.asn.au>
parents:
1538
diff
changeset
|
387 #endif |
|
1834
94dc11094e26
Increase max window size to 10MB, fallback rather than
Matt Johnston <matt@codeconstruct.com.au>
parents:
1819
diff
changeset
|
388 |
|
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
389 if (recv_window_arg) { |
|
1834
94dc11094e26
Increase max window size to 10MB, fallback rather than
Matt Johnston <matt@codeconstruct.com.au>
parents:
1819
diff
changeset
|
390 parse_recv_window(recv_window_arg); |
|
449
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
391 } |
|
1442
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
392 |
|
517c67cbcd31
dropbear server: support -T max auth tries
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parents:
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changeset
|
393 if (maxauthtries_arg) { |
|
517c67cbcd31
dropbear server: support -T max auth tries
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1404
diff
changeset
|
394 unsigned int val = 0; |
|
1445
a3a96dbf9a58
Use MAX_AUTH_TRIES rather than DEFAULT_AUTH_TRIES, don't limit argument range
Matt Johnston <matt@ucc.asn.au>
parents:
1442
diff
changeset
|
395 if (m_str_to_uint(maxauthtries_arg, &val) == DROPBEAR_FAILURE |
|
a3a96dbf9a58
Use MAX_AUTH_TRIES rather than DEFAULT_AUTH_TRIES, don't limit argument range
Matt Johnston <matt@ucc.asn.au>
parents:
1442
diff
changeset
|
396 || val == 0) { |
|
1442
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
397 dropbear_exit("Bad maxauthtries '%s'", maxauthtries_arg); |
|
517c67cbcd31
dropbear server: support -T max auth tries
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parents:
1404
diff
changeset
|
398 } |
|
517c67cbcd31
dropbear server: support -T max auth tries
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parents:
1404
diff
changeset
|
399 svr_opts.maxauthtries = val; |
|
517c67cbcd31
dropbear server: support -T max auth tries
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parents:
1404
diff
changeset
|
400 } |
|
517c67cbcd31
dropbear server: support -T max auth tries
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parents:
1404
diff
changeset
|
401 |
|
1834
94dc11094e26
Increase max window size to 10MB, fallback rather than
Matt Johnston <matt@codeconstruct.com.au>
parents:
1819
diff
changeset
|
402 |
|
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
403 if (keepalive_arg) { |
|
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
404 unsigned int val; |
|
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
405 if (m_str_to_uint(keepalive_arg, &val) == DROPBEAR_FAILURE) { |
|
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
406 dropbear_exit("Bad keepalive '%s'", keepalive_arg); |
|
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
407 } |
|
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
408 opts.keepalive_secs = val; |
|
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
409 } |
|
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
410 |
|
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
411 if (idle_timeout_arg) { |
|
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
412 unsigned int val; |
|
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
413 if (m_str_to_uint(idle_timeout_arg, &val) == DROPBEAR_FAILURE) { |
|
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
414 dropbear_exit("Bad idle_timeout '%s'", idle_timeout_arg); |
|
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
415 } |
|
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
416 opts.idle_timeout_secs = val; |
|
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
417 } |
|
1290
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
418 |
|
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
419 if (svr_opts.forced_command) { |
|
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
420 dropbear_log(LOG_INFO, "Forced command set to '%s'", svr_opts.forced_command); |
|
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
421 } |
| 1654 | 422 #if DROPBEAR_PLUGIN |
|
1653
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
423 if (pubkey_plugin) { |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
424 char *args = strchr(pubkey_plugin, ','); |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
425 if (args) { |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
426 *args='\0'; |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
427 ++args; |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
428 } |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
429 svr_opts.pubkey_plugin = pubkey_plugin; |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
430 svr_opts.pubkey_plugin_options = args; |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
431 } |
|
76189c9ffea2
External Public-Key Authentication API (#72)
fabriziobertocci <fabriziobertocci@gmail.com>
parents:
1603
diff
changeset
|
432 #endif |
|
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
433 } |
|
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
434 |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
435 static void addportandaddress(const char* spec) { |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
436 char *spec_copy = NULL, *myspec = NULL, *port = NULL, *address = NULL; |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
437 |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
438 if (svr_opts.portcount < DROPBEAR_MAX_PORTS) { |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
439 |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
440 /* We don't free it, it becomes part of the runopt state */ |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
441 spec_copy = m_strdup(spec); |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
442 myspec = spec_copy; |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
443 |
|
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
444 if (myspec[0] == '[') { |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
445 myspec++; |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
446 port = strchr(myspec, ']'); |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
447 if (!port) { |
|
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
448 /* Unmatched [ -> exit */ |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
449 dropbear_exit("Bad listen address"); |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
450 } |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
451 port[0] = '\0'; |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
452 port++; |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
453 if (port[0] != ':') { |
|
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
454 /* Missing port -> exit */ |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
455 dropbear_exit("Missing port"); |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
456 } |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
457 } else { |
|
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
458 /* search for ':', that separates address and port */ |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
459 port = strrchr(myspec, ':'); |
|
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
460 } |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
461 |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
462 if (!port) { |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
463 /* no ':' -> the whole string specifies just a port */ |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
464 port = myspec; |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
465 } else { |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
466 /* Split the address/port */ |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
467 port[0] = '\0'; |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
468 port++; |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
469 address = myspec; |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
470 } |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
471 |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
472 if (!address) { |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
473 /* no address given -> fill in the default address */ |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
474 address = DROPBEAR_DEFADDRESS; |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
475 } |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
476 |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
477 if (port[0] == '\0') { |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
478 /* empty port -> exit */ |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
479 dropbear_exit("Bad port"); |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
480 } |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
481 svr_opts.ports[svr_opts.portcount] = m_strdup(port); |
|
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
482 svr_opts.addresses[svr_opts.portcount] = m_strdup(address); |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
483 svr_opts.portcount++; |
|
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
484 m_free(spec_copy); |
|
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
485 } |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
486 } |
|
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
487 |
| 795 | 488 static void disablekey(int type) { |
|
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
489 int i; |
| 802 | 490 TRACE(("Disabling key type %d", type)) |
|
1678
4b4cfc92c5b7
Make server send SSH_MSG_EXT_INFO
Matt Johnston <matt@ucc.asn.au>
parents:
1659
diff
changeset
|
491 for (i = 0; sigalgs[i].name != NULL; i++) { |
|
4b4cfc92c5b7
Make server send SSH_MSG_EXT_INFO
Matt Johnston <matt@ucc.asn.au>
parents:
1659
diff
changeset
|
492 if (sigalgs[i].val == type) { |
|
4b4cfc92c5b7
Make server send SSH_MSG_EXT_INFO
Matt Johnston <matt@ucc.asn.au>
parents:
1659
diff
changeset
|
493 sigalgs[i].usable = 0; |
| 47 | 494 break; |
| 495 } | |
|
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
496 } |
|
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
497 } |
|
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
498 |
|
807
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
499 static void loadhostkey_helper(const char *name, void** src, void** dst, int fatal_duplicate) { |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
500 if (*dst) { |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
501 if (fatal_duplicate) { |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
502 dropbear_exit("Only one %s key can be specified", name); |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
503 } |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
504 } else { |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
505 *dst = *src; |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
506 *src = NULL; |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
507 } |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
508 |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
509 } |
|
75509065db53
have separate ecdsa keys for each size
Matt Johnston <matt@ucc.asn.au>
parents:
802
diff
changeset
|
510 |
|
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents:
94
diff
changeset
|
511 /* Must be called after syslog/etc is working */ |
| 795 | 512 static void loadhostkey(const char *keyfile, int fatal_duplicate) { |
| 513 sign_key * read_key = new_sign_key(); | |
|
847
f4bb964c8678
Add '-R' for delayed hostkey option
Matt Johnston <matt@ucc.asn.au>
parents:
846
diff
changeset
|
514 enum signkey_type type = DROPBEAR_SIGNKEY_ANY; |
| 795 | 515 if (readhostkey(keyfile, read_key, &type) == DROPBEAR_FAILURE) { |
|
976
964d41e3aeb2
Don't print "Failed loading hostkey" when -R delayed hostkey option is enabled
Steven Honeyman <stevenhoneyman@gmail.com>
parents:
948
diff
changeset
|
516 if (!svr_opts.delay_hostkey) { |
|
964d41e3aeb2
Don't print "Failed loading hostkey" when -R delayed hostkey option is enabled
Steven Honeyman <stevenhoneyman@gmail.com>
parents:
948
diff
changeset
|
517 dropbear_log(LOG_WARNING, "Failed loading %s", keyfile); |
|
964d41e3aeb2
Don't print "Failed loading hostkey" when -R delayed hostkey option is enabled
Steven Honeyman <stevenhoneyman@gmail.com>
parents:
948
diff
changeset
|
518 } |
| 795 | 519 } |
| 520 | |
|
1295
750ec4ec4cbe
Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents:
1290
diff
changeset
|
521 #if DROPBEAR_RSA |
| 795 | 522 if (type == DROPBEAR_SIGNKEY_RSA) { |
|
852
7540c0822374
Various cleanups and fixes for warnings
Matt Johnston <matt@ucc.asn.au>
parents:
847
diff
changeset
|
523 loadhostkey_helper("RSA", (void**)&read_key->rsakey, (void**)&svr_opts.hostkey->rsakey, fatal_duplicate); |
| 795 | 524 } |
| 525 #endif | |
|
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526 |
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527 #if DROPBEAR_DSS |
| 795 | 528 if (type == DROPBEAR_SIGNKEY_DSS) { |
|
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529 loadhostkey_helper("DSS", (void**)&read_key->dsskey, (void**)&svr_opts.hostkey->dsskey, fatal_duplicate); |
| 795 | 530 } |
| 531 #endif | |
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532 |
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533 #if DROPBEAR_ECDSA |
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534 #if DROPBEAR_ECC_256 |
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535 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP256) { |
|
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536 loadhostkey_helper("ECDSA256", (void**)&read_key->ecckey256, (void**)&svr_opts.hostkey->ecckey256, fatal_duplicate); |
| 795 | 537 } |
| 538 #endif | |
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539 #if DROPBEAR_ECC_384 |
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540 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP384) { |
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541 loadhostkey_helper("ECDSA384", (void**)&read_key->ecckey384, (void**)&svr_opts.hostkey->ecckey384, fatal_duplicate); |
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542 } |
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543 #endif |
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544 #if DROPBEAR_ECC_521 |
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545 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP521) { |
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546 loadhostkey_helper("ECDSA521", (void**)&read_key->ecckey521, (void**)&svr_opts.hostkey->ecckey521, fatal_duplicate); |
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547 } |
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548 #endif |
| 857 | 549 #endif /* DROPBEAR_ECDSA */ |
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550 |
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551 #if DROPBEAR_ED25519 |
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552 if (type == DROPBEAR_SIGNKEY_ED25519) { |
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553 loadhostkey_helper("ed25519", (void**)&read_key->ed25519key, (void**)&svr_opts.hostkey->ed25519key, fatal_duplicate); |
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554 } |
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555 #endif |
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556 |
| 795 | 557 sign_key_free(read_key); |
| 558 TRACE(("leave loadhostkey")) | |
| 559 } | |
| 560 | |
| 561 static void addhostkey(const char *keyfile) { | |
| 562 if (svr_opts.num_hostkey_files >= MAX_HOSTKEYS) { | |
| 563 dropbear_exit("Too many hostkeys"); | |
| 564 } | |
| 565 svr_opts.hostkey_files[svr_opts.num_hostkey_files] = m_strdup(keyfile); | |
| 566 svr_opts.num_hostkey_files++; | |
| 567 } | |
| 568 | |
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569 |
| 795 | 570 void load_all_hostkeys() { |
| 571 int i; | |
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572 int any_keys = 0; |
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573 #if DROPBEAR_ECDSA |
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574 int loaded_any_ecdsa = 0; |
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575 #endif |
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576 |
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577 svr_opts.hostkey = new_sign_key(); |
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578 |
| 795 | 579 for (i = 0; i < svr_opts.num_hostkey_files; i++) { |
| 580 char *hostkey_file = svr_opts.hostkey_files[i]; | |
| 581 loadhostkey(hostkey_file, 1); | |
| 582 m_free(hostkey_file); | |
| 583 } | |
| 584 | |
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585 /* Only load default host keys if a host key is not specified by the user */ |
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586 if (svr_opts.num_hostkey_files == 0) { |
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587 #if DROPBEAR_RSA |
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588 loadhostkey(RSA_PRIV_FILENAME, 0); |
| 795 | 589 #endif |
| 590 | |
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591 #if DROPBEAR_DSS |
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592 loadhostkey(DSS_PRIV_FILENAME, 0); |
| 795 | 593 #endif |
| 594 | |
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595 #if DROPBEAR_ECDSA |
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596 loadhostkey(ECDSA_PRIV_FILENAME, 0); |
| 795 | 597 #endif |
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598 #if DROPBEAR_ED25519 |
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599 loadhostkey(ED25519_PRIV_FILENAME, 0); |
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600 #endif |
|
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601 } |
| 795 | 602 |
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603 #if DROPBEAR_RSA |
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604 if (!svr_opts.delay_hostkey && !svr_opts.hostkey->rsakey) { |
| 795 | 605 disablekey(DROPBEAR_SIGNKEY_RSA); |
| 876 | 606 } else { |
|
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607 any_keys = 1; |
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608 } |
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609 #endif |
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610 |
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611 #if DROPBEAR_DSS |
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612 if (!svr_opts.delay_hostkey && !svr_opts.hostkey->dsskey) { |
| 876 | 613 disablekey(DROPBEAR_SIGNKEY_DSS); |
| 614 } else { | |
|
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615 any_keys = 1; |
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616 } |
| 795 | 617 #endif |
|
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618 |
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619 #if DROPBEAR_ECDSA |
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620 /* We want to advertise a single ecdsa algorithm size. |
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621 - If there is a ecdsa hostkey at startup we choose that that size. |
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622 - If we generate at runtime we choose the default ecdsa size. |
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623 - Otherwise no ecdsa keys will be advertised */ |
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624 |
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625 /* check if any keys were loaded at startup */ |
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626 loaded_any_ecdsa = |
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627 0 |
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628 #if DROPBEAR_ECC_256 |
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629 || svr_opts.hostkey->ecckey256 |
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630 #endif |
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631 #if DROPBEAR_ECC_384 |
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632 || svr_opts.hostkey->ecckey384 |
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633 #endif |
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634 #if DROPBEAR_ECC_521 |
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635 || svr_opts.hostkey->ecckey521 |
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636 #endif |
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637 ; |
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638 any_keys |= loaded_any_ecdsa; |
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639 |
|
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640 /* Or an ecdsa key could be generated at runtime */ |
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641 any_keys |= svr_opts.delay_hostkey; |
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642 |
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643 /* At most one ecdsa key size will be left enabled */ |
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644 #if DROPBEAR_ECC_256 |
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645 if (!svr_opts.hostkey->ecckey256 |
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646 && (!svr_opts.delay_hostkey || loaded_any_ecdsa || ECDSA_DEFAULT_SIZE != 256 )) { |
| 795 | 647 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP256); |
|
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648 } |
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649 #endif |
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650 #if DROPBEAR_ECC_384 |
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651 if (!svr_opts.hostkey->ecckey384 |
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652 && (!svr_opts.delay_hostkey || loaded_any_ecdsa || ECDSA_DEFAULT_SIZE != 384 )) { |
| 795 | 653 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP384); |
|
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654 } |
|
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655 #endif |
|
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656 #if DROPBEAR_ECC_521 |
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657 if (!svr_opts.hostkey->ecckey521 |
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658 && (!svr_opts.delay_hostkey || loaded_any_ecdsa || ECDSA_DEFAULT_SIZE != 521 )) { |
|
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659 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP521); |
|
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660 } |
|
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661 #endif |
|
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662 #endif /* DROPBEAR_ECDSA */ |
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663 |
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664 #if DROPBEAR_ED25519 |
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665 if (!svr_opts.delay_hostkey && !svr_opts.hostkey->ed25519key) { |
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666 disablekey(DROPBEAR_SIGNKEY_ED25519); |
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667 } else { |
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668 any_keys = 1; |
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669 } |
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670 #endif |
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671 |
| 876 | 672 if (!any_keys) { |
| 1177 | 673 dropbear_exit("No hostkeys available. 'dropbear -R' may be useful or run dropbearkey."); |
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674 } |
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675 } |