Mercurial > dropbear
annotate svr-runopts.c @ 1550:93a3726a36d6
Remove unused tests for headers and functions
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 27 Feb 2018 21:41:56 +0800 |
parents | f20038b513a5 |
children | bb8eaa26bc93 1acbdf64088e |
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_DELAY_HOSTKEY |
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61 "-R Create hostkeys as required\n" |
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62 #endif |
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63 "-F Don't fork into background\n" |
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64 #ifdef DISABLE_SYSLOG |
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65 "(Syslog support not compiled in, using stderr)\n" |
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66 #else |
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67 "-E Log to stderr rather than syslog\n" |
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68 #endif |
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69 #if DO_MOTD |
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70 "-m Don't display the motd on login\n" |
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71 #endif |
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72 "-w Disallow root logins\n" |
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73 "-G Restrict logins to members of specified group\n" |
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74 #if DROPBEAR_SVR_PASSWORD_AUTH || DROPBEAR_SVR_PAM_AUTH |
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75 "-s Disable password logins\n" |
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76 "-g Disable password logins for root\n" |
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77 "-B Allow blank password logins\n" |
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78 #endif |
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79 "-T Maximum authentication tries (default %d)\n" |
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80 #if DROPBEAR_SVR_LOCALTCPFWD |
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81 "-j Disable local port forwarding\n" |
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82 #endif |
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83 #if DROPBEAR_SVR_REMOTETCPFWD |
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84 "-k Disable remote port forwarding\n" |
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85 "-a Allow connections to forwarded ports from any host\n" |
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86 "-c command Force executed command\n" |
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87 #endif |
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88 "-p [address:]port\n" |
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89 " Listen on specified tcp port (and optionally address),\n" |
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90 " up to %d can be specified\n" |
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91 " (default port is %s if none specified)\n" |
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92 "-P PidFile Create pid file PidFile\n" |
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93 " (default %s)\n" |
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94 #if INETD_MODE |
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95 "-i Start for inetd\n" |
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96 #endif |
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97 "-W <receive_window_buffer> (default %d, larger may be faster, max 1MB)\n" |
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98 "-K <keepalive> (0 is never, default %d, in seconds)\n" |
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99 "-I <idle_timeout> (0 is never, default %d, in seconds)\n" |
946 | 100 "-V Version\n" |
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101 #if DEBUG_TRACE |
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102 "-v verbose (compiled with DEBUG_TRACE)\n" |
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103 #endif |
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104 ,DROPBEAR_VERSION, progname, |
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105 #if DROPBEAR_DSS |
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106 DSS_PRIV_FILENAME, |
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107 #endif |
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108 #if DROPBEAR_RSA |
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109 RSA_PRIV_FILENAME, |
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110 #endif |
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111 #if DROPBEAR_ECDSA |
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112 ECDSA_PRIV_FILENAME, |
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113 #endif |
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114 MAX_AUTH_TRIES, |
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115 DROPBEAR_MAX_PORTS, DROPBEAR_DEFPORT, DROPBEAR_PIDFILE, |
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116 DEFAULT_RECV_WINDOW, DEFAULT_KEEPALIVE, DEFAULT_IDLE_TIMEOUT); |
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117 } |
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118 |
24 | 119 void svr_getopts(int argc, char ** argv) { |
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120 |
1164 | 121 unsigned int i, j; |
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122 char ** next = NULL; |
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123 int nextisport = 0; |
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124 char* recv_window_arg = NULL; |
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125 char* keepalive_arg = NULL; |
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126 char* idle_timeout_arg = NULL; |
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127 char* maxauthtries_arg = NULL; |
795 | 128 char* keyfile = NULL; |
1164 | 129 char c; |
795 | 130 |
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131 |
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132 /* see printhelp() for options */ |
24 | 133 svr_opts.bannerfile = NULL; |
134 svr_opts.banner = NULL; | |
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135 svr_opts.forced_command = NULL; |
24 | 136 svr_opts.forkbg = 1; |
137 svr_opts.norootlogin = 0; | |
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138 svr_opts.restrict_group = NULL; |
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139 svr_opts.restrict_group_gid = 0; |
24 | 140 svr_opts.noauthpass = 0; |
141 svr_opts.norootpass = 0; | |
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142 svr_opts.allowblankpass = 0; |
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143 svr_opts.maxauthtries = MAX_AUTH_TRIES; |
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144 svr_opts.inetdmode = 0; |
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145 svr_opts.portcount = 0; |
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146 svr_opts.hostkey = NULL; |
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147 svr_opts.delay_hostkey = 0; |
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148 svr_opts.pidfile = DROPBEAR_PIDFILE; |
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149 #if DROPBEAR_SVR_LOCALTCPFWD |
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150 svr_opts.nolocaltcp = 0; |
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151 #endif |
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152 #if DROPBEAR_SVR_REMOTETCPFWD |
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153 svr_opts.noremotetcp = 0; |
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154 #endif |
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155 |
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156 #ifndef DISABLE_ZLIB |
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157 opts.compress_mode = DROPBEAR_COMPRESS_DELAYED; |
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158 #endif |
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159 |
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160 /* not yet |
33 | 161 opts.ipv4 = 1; |
162 opts.ipv6 = 1; | |
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163 */ |
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164 #if DO_MOTD |
24 | 165 svr_opts.domotd = 1; |
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166 #endif |
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167 #ifndef DISABLE_SYSLOG |
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168 opts.usingsyslog = 1; |
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169 #endif |
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170 opts.recv_window = DEFAULT_RECV_WINDOW; |
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171 opts.keepalive_secs = DEFAULT_KEEPALIVE; |
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172 opts.idle_timeout_secs = DEFAULT_IDLE_TIMEOUT; |
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173 |
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174 #if DROPBEAR_SVR_REMOTETCPFWD |
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175 opts.listen_fwd_all = 0; |
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176 #endif |
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177 |
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178 for (i = 1; i < (unsigned int)argc; i++) { |
1164 | 179 if (argv[i][0] != '-' || argv[i][1] == '\0') |
180 dropbear_exit("Invalid argument: %s", argv[i]); | |
795 | 181 |
1164 | 182 for (j = 1; (c = argv[i][j]) != '\0' && !next && !nextisport; j++) { |
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183 switch (c) { |
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184 case 'b': |
24 | 185 next = &svr_opts.bannerfile; |
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186 break; |
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187 case 'c': |
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188 next = &svr_opts.forced_command; |
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189 break; |
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190 case 'd': |
795 | 191 case 'r': |
192 next = &keyfile; | |
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193 break; |
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194 case 'R': |
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195 svr_opts.delay_hostkey = 1; |
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196 break; |
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197 case 'F': |
24 | 198 svr_opts.forkbg = 0; |
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199 break; |
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200 #ifndef DISABLE_SYSLOG |
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201 case 'E': |
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202 opts.usingsyslog = 0; |
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203 break; |
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204 #endif |
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205 #if DROPBEAR_SVR_LOCALTCPFWD |
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206 case 'j': |
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207 svr_opts.nolocaltcp = 1; |
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208 break; |
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209 #endif |
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210 #if DROPBEAR_SVR_REMOTETCPFWD |
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211 case 'k': |
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212 svr_opts.noremotetcp = 1; |
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213 break; |
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214 case 'a': |
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215 opts.listen_fwd_all = 1; |
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216 break; |
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217 #endif |
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218 #if INETD_MODE |
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219 case 'i': |
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220 svr_opts.inetdmode = 1; |
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221 break; |
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222 #endif |
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223 case 'p': |
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224 nextisport = 1; |
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225 break; |
323
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226 case 'P': |
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227 next = &svr_opts.pidfile; |
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228 break; |
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229 #if DO_MOTD |
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230 /* motd is displayed by default, -m turns it off */ |
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231 case 'm': |
24 | 232 svr_opts.domotd = 0; |
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233 break; |
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234 #endif |
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235 case 'w': |
24 | 236 svr_opts.norootlogin = 1; |
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237 break; |
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238 case 'G': |
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239 next = &svr_opts.restrict_group; |
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240 break; |
449
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241 case 'W': |
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242 next = &recv_window_arg; |
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243 break; |
454
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244 case 'K': |
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245 next = &keepalive_arg; |
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246 break; |
513
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247 case 'I': |
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248 next = &idle_timeout_arg; |
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249 break; |
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250 case 'T': |
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251 next = &maxauthtries_arg; |
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252 break; |
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253 #if DROPBEAR_SVR_PASSWORD_AUTH || DROPBEAR_SVR_PAM_AUTH |
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254 case 's': |
24 | 255 svr_opts.noauthpass = 1; |
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256 break; |
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257 case 'g': |
24 | 258 svr_opts.norootpass = 1; |
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259 break; |
692
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260 case 'B': |
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261 svr_opts.allowblankpass = 1; |
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262 break; |
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263 #endif |
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264 case 'h': |
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265 printhelp(argv[0]); |
946 | 266 exit(EXIT_SUCCESS); |
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267 break; |
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435
diff
changeset
|
268 case 'u': |
446
2cd2edfa11ee
Just use /dev/urandom since that's what everyone ends up using anyway.
Matt Johnston <matt@ucc.asn.au>
parents:
442
diff
changeset
|
269 /* backwards compatibility with old urandom option */ |
442
d82a2a44c684
Add -u option to specify /dev/urandom instead
Matt Johnston <matt@ucc.asn.au>
parents:
435
diff
changeset
|
270 break; |
1295
750ec4ec4cbe
Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents:
1290
diff
changeset
|
271 #if DEBUG_TRACE |
94
c85c88500ea6
DEBUG_TRACE now only triggers with -v on the cmdline
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91
diff
changeset
|
272 case 'v': |
c85c88500ea6
DEBUG_TRACE now only triggers with -v on the cmdline
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diff
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|
273 debug_trace = 1; |
c85c88500ea6
DEBUG_TRACE now only triggers with -v on the cmdline
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91
diff
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|
274 break; |
c85c88500ea6
DEBUG_TRACE now only triggers with -v on the cmdline
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91
diff
changeset
|
275 #endif |
946 | 276 case 'V': |
948
f92eb625c48d
- Don't use multichar constants since recent gcc complains
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parents:
946
diff
changeset
|
277 print_version(); |
946 | 278 exit(EXIT_SUCCESS); |
279 break; | |
4
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parents:
diff
changeset
|
280 default: |
1164 | 281 fprintf(stderr, "Invalid option -%c\n", c); |
4
fe6bca95afa7
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|
282 printhelp(argv[0]); |
fe6bca95afa7
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parents:
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changeset
|
283 exit(EXIT_FAILURE); |
fe6bca95afa7
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parents:
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|
284 break; |
fe6bca95afa7
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parents:
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changeset
|
285 } |
fe6bca95afa7
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parents:
diff
changeset
|
286 } |
1164 | 287 |
288 if (!next && !nextisport) | |
289 continue; | |
290 | |
291 if (c == '\0') { | |
292 i++; | |
293 j = 0; | |
294 if (!argv[i]) { | |
295 dropbear_exit("Missing argument"); | |
296 } | |
297 } | |
298 | |
299 if (nextisport) { | |
300 addportandaddress(&argv[i][j]); | |
301 nextisport = 0; | |
302 } else if (next) { | |
303 *next = &argv[i][j]; | |
304 if (*next == NULL) { | |
305 dropbear_exit("Invalid null argument"); | |
306 } | |
1404
e8f67918fdc9
when pointer, use NULL instead of 0
Francois Perrad <francois.perrad@gadz.org>
parents:
1295
diff
changeset
|
307 next = NULL; |
1164 | 308 |
309 if (keyfile) { | |
310 addhostkey(keyfile); | |
311 keyfile = NULL; | |
312 } | |
313 } | |
4
fe6bca95afa7
Makefile.in contains updated files required
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parents:
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changeset
|
314 } |
fe6bca95afa7
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parents:
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changeset
|
315 |
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
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parents:
94
diff
changeset
|
316 /* 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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parents:
94
diff
changeset
|
317 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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parents:
94
diff
changeset
|
318 svr_opts.ports[0] = m_strdup(DROPBEAR_DEFPORT); |
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
319 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
|
320 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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parents:
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diff
changeset
|
321 } |
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
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diff
changeset
|
322 |
24 | 323 if (svr_opts.bannerfile) { |
4
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parents:
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changeset
|
324 struct stat buf; |
24 | 325 if (stat(svr_opts.bannerfile, &buf) != 0) { |
4
fe6bca95afa7
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changeset
|
326 dropbear_exit("Error opening banner file '%s'", |
24 | 327 svr_opts.bannerfile); |
4
fe6bca95afa7
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parents:
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changeset
|
328 } |
fe6bca95afa7
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parents:
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changeset
|
329 |
fe6bca95afa7
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parents:
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changeset
|
330 if (buf.st_size > MAX_BANNER_SIZE) { |
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Makefile.in contains updated files required
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parents:
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changeset
|
331 dropbear_exit("Banner file too large, max is %d bytes", |
fe6bca95afa7
Makefile.in contains updated files required
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parents:
diff
changeset
|
332 MAX_BANNER_SIZE); |
fe6bca95afa7
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parents:
diff
changeset
|
333 } |
fe6bca95afa7
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parents:
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changeset
|
334 |
24 | 335 svr_opts.banner = buf_new(buf.st_size); |
336 if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) { | |
4
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parents:
diff
changeset
|
337 dropbear_exit("Error reading banner file '%s'", |
24 | 338 svr_opts.bannerfile); |
4
fe6bca95afa7
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parents:
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changeset
|
339 } |
24 | 340 buf_setpos(svr_opts.banner, 0); |
4
fe6bca95afa7
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parents:
diff
changeset
|
341 } |
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
|
342 |
1537
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
343 if (svr_opts.restrict_group) { |
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
344 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
|
345 |
1537
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
346 if (restrictedgroup){ |
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
347 svr_opts.restrict_group_gid = restrictedgroup->gr_gid; |
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
348 } else { |
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
349 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
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
350 } |
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
|
351 |
1537
6a83b1944432
Fix restricted group code for BSDs, move to separate function
Matt Johnston <matt@ucc.asn.au>
parents:
1535
diff
changeset
|
352 } |
449
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
353 |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
354 if (recv_window_arg) { |
449
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
355 opts.recv_window = atol(recv_window_arg); |
492
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
356 if (opts.recv_window == 0 || opts.recv_window > MAX_RECV_WINDOW) { |
449
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
357 dropbear_exit("Bad recv window '%s'", recv_window_arg); |
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
358 } |
3e6c536bc023
Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents:
446
diff
changeset
|
359 } |
1442
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
360 |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
361 if (maxauthtries_arg) { |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
362 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
|
363 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
|
364 || val == 0) { |
1442
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
365 dropbear_exit("Bad maxauthtries '%s'", maxauthtries_arg); |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
366 } |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
367 svr_opts.maxauthtries = val; |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
368 } |
517c67cbcd31
dropbear server: support -T max auth tries
Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
parents:
1404
diff
changeset
|
369 |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
370 |
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
371 if (keepalive_arg) { |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
372 unsigned int val; |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
373 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
|
374 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
|
375 } |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
376 opts.keepalive_secs = val; |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
449
diff
changeset
|
377 } |
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
378 |
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
Matt Johnston <matt@ucc.asn.au>
parents:
510
diff
changeset
|
379 if (idle_timeout_arg) { |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
380 unsigned int val; |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
381 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
|
382 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
|
383 } |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
513
diff
changeset
|
384 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
|
385 } |
1290
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
386 |
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
387 if (svr_opts.forced_command) { |
ee2ffa044c7e
Add manpage and log for forced_command
Matt Johnston <matt@ucc.asn.au>
parents:
1289
diff
changeset
|
388 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
|
389 } |
4
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
390 } |
fe6bca95afa7
Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
391 |
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
392 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
|
393 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
|
394 |
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
395 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
|
396 |
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
271
diff
changeset
|
397 /* 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
|
398 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
|
399 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
|
400 |
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
401 if (myspec[0] == '[') { |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
402 myspec++; |
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
403 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
|
404 if (!port) { |
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
405 /* Unmatched [ -> exit */ |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
406 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
|
407 } |
1197
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
408 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
|
409 port++; |
86a9e0204c03
ports and addresses must be malloced to avoid segfault on exit
Matt Johnston <matt@ucc.asn.au>
parents:
1177
diff
changeset
|
410 if (port[0] != ':') { |
706
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
411 /* Missing port -> exit */ |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
412 dropbear_exit("Missing port"); |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
413 } |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
414 } else { |
002cf09827c0
Allow specifying server "-p" options with ipv6 bracket notation,
Matt Johnston <matt@ucc.asn.au>
parents:
692
diff
changeset
|
415 /* search for ':', that separates address and port */ |
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416 port = strrchr(myspec, ':'); |
706
002cf09827c0
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417 } |
434
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418 |
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419 if (!port) { |
434
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420 /* no ':' -> the whole string specifies just a port */ |
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421 port = myspec; |
434
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422 } else { |
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423 /* Split the address/port */ |
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424 port[0] = '\0'; |
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425 port++; |
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426 address = myspec; |
434
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427 } |
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428 |
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429 if (!address) { |
434
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430 /* no address given -> fill in the default address */ |
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431 address = DROPBEAR_DEFADDRESS; |
434
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432 } |
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433 |
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434 if (port[0] == '\0') { |
434
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435 /* empty port -> exit */ |
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436 dropbear_exit("Bad port"); |
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437 } |
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438 svr_opts.ports[svr_opts.portcount] = m_strdup(port); |
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439 svr_opts.addresses[svr_opts.portcount] = m_strdup(address); |
434
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440 svr_opts.portcount++; |
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441 m_free(spec_copy); |
434
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442 } |
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443 } |
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444 |
795 | 445 static void disablekey(int type) { |
4
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446 int i; |
802 | 447 TRACE(("Disabling key type %d", type)) |
47 | 448 for (i = 0; sshhostkey[i].name != NULL; i++) { |
449 if (sshhostkey[i].val == type) { | |
802 | 450 sshhostkey[i].usable = 0; |
47 | 451 break; |
452 } | |
4
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453 } |
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|
454 } |
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|
455 |
807
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456 static void loadhostkey_helper(const char *name, void** src, void** dst, int fatal_duplicate) { |
75509065db53
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457 if (*dst) { |
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458 if (fatal_duplicate) { |
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459 dropbear_exit("Only one %s key can be specified", name); |
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|
460 } |
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461 } else { |
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|
462 *dst = *src; |
75509065db53
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463 *src = NULL; |
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464 } |
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465 |
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466 } |
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467 |
101
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468 /* Must be called after syslog/etc is working */ |
795 | 469 static void loadhostkey(const char *keyfile, int fatal_duplicate) { |
470 sign_key * read_key = new_sign_key(); | |
847
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471 enum signkey_type type = DROPBEAR_SIGNKEY_ANY; |
795 | 472 if (readhostkey(keyfile, read_key, &type) == DROPBEAR_FAILURE) { |
976
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473 if (!svr_opts.delay_hostkey) { |
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474 dropbear_log(LOG_WARNING, "Failed loading %s", keyfile); |
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475 } |
795 | 476 } |
477 | |
1295
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478 #if DROPBEAR_RSA |
795 | 479 if (type == DROPBEAR_SIGNKEY_RSA) { |
852
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480 loadhostkey_helper("RSA", (void**)&read_key->rsakey, (void**)&svr_opts.hostkey->rsakey, fatal_duplicate); |
795 | 481 } |
482 #endif | |
4
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483 |
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484 #if DROPBEAR_DSS |
795 | 485 if (type == DROPBEAR_SIGNKEY_DSS) { |
852
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486 loadhostkey_helper("DSS", (void**)&read_key->dsskey, (void**)&svr_opts.hostkey->dsskey, fatal_duplicate); |
795 | 487 } |
488 #endif | |
4
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489 |
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490 #if DROPBEAR_ECDSA |
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491 #if DROPBEAR_ECC_256 |
807
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492 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP256) { |
852
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493 loadhostkey_helper("ECDSA256", (void**)&read_key->ecckey256, (void**)&svr_opts.hostkey->ecckey256, fatal_duplicate); |
795 | 494 } |
495 #endif | |
1295
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496 #if DROPBEAR_ECC_384 |
807
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|
497 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP384) { |
852
7540c0822374
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changeset
|
498 loadhostkey_helper("ECDSA384", (void**)&read_key->ecckey384, (void**)&svr_opts.hostkey->ecckey384, fatal_duplicate); |
807
75509065db53
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|
499 } |
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|
500 #endif |
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changeset
|
501 #if DROPBEAR_ECC_521 |
807
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|
502 if (type == DROPBEAR_SIGNKEY_ECDSA_NISTP521) { |
852
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Various cleanups and fixes for warnings
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503 loadhostkey_helper("ECDSA521", (void**)&read_key->ecckey521, (void**)&svr_opts.hostkey->ecckey521, fatal_duplicate); |
807
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|
504 } |
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|
505 #endif |
857 | 506 #endif /* DROPBEAR_ECDSA */ |
795 | 507 sign_key_free(read_key); |
508 TRACE(("leave loadhostkey")) | |
509 } | |
510 | |
511 static void addhostkey(const char *keyfile) { | |
512 if (svr_opts.num_hostkey_files >= MAX_HOSTKEYS) { | |
513 dropbear_exit("Too many hostkeys"); | |
514 } | |
515 svr_opts.hostkey_files[svr_opts.num_hostkey_files] = m_strdup(keyfile); | |
516 svr_opts.num_hostkey_files++; | |
517 } | |
518 | |
519 void load_all_hostkeys() { | |
520 int i; | |
847
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Add '-R' for delayed hostkey option
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diff
changeset
|
521 int disable_unset_keys = 1; |
873
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522 int any_keys = 0; |
4
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523 |
101
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|
524 svr_opts.hostkey = new_sign_key(); |
4
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|
525 |
795 | 526 for (i = 0; i < svr_opts.num_hostkey_files; i++) { |
527 char *hostkey_file = svr_opts.hostkey_files[i]; | |
528 loadhostkey(hostkey_file, 1); | |
529 m_free(hostkey_file); | |
530 } | |
531 | |
1532
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Only load dropbear default host keys if a key is not specified
CamVan Nguyen <ctnguyen@us.ibm.com>
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diff
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|
532 /* Only load default host keys if a host key is not specified by the user */ |
3616ec41d03d
Only load dropbear default host keys if a key is not specified
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diff
changeset
|
533 if (svr_opts.num_hostkey_files == 0) { |
1295
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|
534 #if DROPBEAR_RSA |
1532
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Only load dropbear default host keys if a key is not specified
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|
535 loadhostkey(RSA_PRIV_FILENAME, 0); |
795 | 536 #endif |
537 | |
1295
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diff
changeset
|
538 #if DROPBEAR_DSS |
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|
539 loadhostkey(DSS_PRIV_FILENAME, 0); |
795 | 540 #endif |
541 | |
1295
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diff
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|
542 #if DROPBEAR_ECDSA |
1532
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diff
changeset
|
543 loadhostkey(ECDSA_PRIV_FILENAME, 0); |
795 | 544 #endif |
1538
f20038b513a5
more linting (#58)
François Perrad <francois.perrad@gadz.org>
parents:
1537
diff
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|
545 } |
795 | 546 |
1295
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|
547 #if DROPBEAR_DELAY_HOSTKEY |
876 | 548 if (svr_opts.delay_hostkey) { |
847
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|
549 disable_unset_keys = 0; |
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550 } |
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Add '-R' for delayed hostkey option
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|
551 #endif |
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|
552 |
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553 #if DROPBEAR_RSA |
847
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Add '-R' for delayed hostkey option
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|
554 if (disable_unset_keys && !svr_opts.hostkey->rsakey) { |
795 | 555 disablekey(DROPBEAR_SIGNKEY_RSA); |
876 | 556 } else { |
873
17b15683648d
Exit if we don't have keys and -R wasn't specified
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|
557 any_keys = 1; |
17b15683648d
Exit if we don't have keys and -R wasn't specified
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|
558 } |
4
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559 #endif |
847
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|
560 |
1295
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|
561 #if DROPBEAR_DSS |
847
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diff
changeset
|
562 if (disable_unset_keys && !svr_opts.hostkey->dsskey) { |
876 | 563 disablekey(DROPBEAR_SIGNKEY_DSS); |
564 } else { | |
873
17b15683648d
Exit if we don't have keys and -R wasn't specified
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changeset
|
565 any_keys = 1; |
17b15683648d
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|
566 } |
795 | 567 #endif |
847
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diff
changeset
|
568 |
f4bb964c8678
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|
569 |
1295
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570 #if DROPBEAR_ECDSA |
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|
571 #if DROPBEAR_ECC_256 |
847
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changeset
|
572 if ((disable_unset_keys || ECDSA_DEFAULT_SIZE != 256) |
f4bb964c8678
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changeset
|
573 && !svr_opts.hostkey->ecckey256) { |
795 | 574 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP256); |
876 | 575 } else { |
873
17b15683648d
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changeset
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576 any_keys = 1; |
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577 } |
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578 #endif |
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579 |
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580 #if DROPBEAR_ECC_384 |
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581 if ((disable_unset_keys || ECDSA_DEFAULT_SIZE != 384) |
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582 && !svr_opts.hostkey->ecckey384) { |
795 | 583 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP384); |
876 | 584 } else { |
873
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585 any_keys = 1; |
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586 } |
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587 #endif |
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588 |
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589 #if DROPBEAR_ECC_521 |
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590 if ((disable_unset_keys || ECDSA_DEFAULT_SIZE != 521) |
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591 && !svr_opts.hostkey->ecckey521) { |
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592 disablekey(DROPBEAR_SIGNKEY_ECDSA_NISTP521); |
876 | 593 } else { |
873
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594 any_keys = 1; |
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595 } |
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596 #endif |
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597 #endif /* DROPBEAR_ECDSA */ |
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598 |
876 | 599 if (!any_keys) { |
1177 | 600 dropbear_exit("No hostkeys available. 'dropbear -R' may be useful or run dropbearkey."); |
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601 } |
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602 } |