annotate svr-runopts.c @ 487:2e17f82a7330

Add multihop 'onion-forwarding' mode. Needs refinement, works.
author Matt Johnston <matt@ucc.asn.au>
date Thu, 18 Sep 2008 14:47:02 +0000
parents 7e43f5e473b9
children b956d6151600
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #include "includes.h"
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26 #include "runopts.h"
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27 #include "signkey.h"
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28 #include "buffer.h"
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29 #include "dbutil.h"
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30 #include "algo.h"
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31
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32 svr_runopts svr_opts; /* GLOBAL */
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33
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34 static void printhelp(const char * progname);
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35 static void addportandaddress(char* spec);
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36
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37 static void printhelp(const char * progname) {
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38
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39 fprintf(stderr, "Dropbear sshd v%s\n"
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40 "Usage: %s [options]\n"
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41 "Options are:\n"
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42 "-b bannerfile Display the contents of bannerfile"
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43 " before user login\n"
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44 " (default: none)\n"
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45 #ifdef DROPBEAR_DSS
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46 "-d dsskeyfile Use dsskeyfile for the dss host key\n"
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47 " (default: %s)\n"
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48 #endif
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49 #ifdef DROPBEAR_RSA
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50 "-r rsakeyfile Use rsakeyfile for the rsa host key\n"
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51 " (default: %s)\n"
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52 #endif
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53 "-F Don't fork into background\n"
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54 #ifdef DISABLE_SYSLOG
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55 "(Syslog support not compiled in, using stderr)\n"
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56 #else
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57 "-E Log to stderr rather than syslog\n"
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58 #endif
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59 #ifdef DO_MOTD
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60 "-m Don't display the motd on login\n"
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61 #endif
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62 "-w Disallow root logins\n"
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63 #if defined(ENABLE_SVR_PASSWORD_AUTH) || defined(ENABLE_SVR_PAM_AUTH)
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64 "-s Disable password logins\n"
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65 "-g Disable password logins for root\n"
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66 #endif
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67 #ifdef ENABLE_SVR_LOCALTCPFWD
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68 "-j Disable local port forwarding\n"
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69 #endif
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70 #ifdef ENABLE_SVR_REMOTETCPFWD
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71 "-k Disable remote port forwarding\n"
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72 "-a Allow connections to forwarded ports from any host\n"
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73 #endif
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74 "-p [address:]port\n"
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75 " Listen on specified tcp port (and optionally address),\n"
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76 " up to %d can be specified\n"
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77 " (default port is %s if none specified)\n"
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78 "-P PidFile Create pid file PidFile\n"
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79 " (default %s)\n"
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80 #ifdef INETD_MODE
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81 "-i Start for inetd\n"
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82 #endif
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83 "-W <receive_window_buffer> (default %d, larger may be faster, max 1MB)\n"
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84 "-K <keepalive> (0 is never, default %d)\n"
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85 #ifdef DEBUG_TRACE
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86 "-v verbose\n"
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87 #endif
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88 ,DROPBEAR_VERSION, progname,
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89 #ifdef DROPBEAR_DSS
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90 DSS_PRIV_FILENAME,
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91 #endif
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92 #ifdef DROPBEAR_RSA
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93 RSA_PRIV_FILENAME,
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94 #endif
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95 DROPBEAR_MAX_PORTS, DROPBEAR_DEFPORT, DROPBEAR_PIDFILE,
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96 DEFAULT_RECV_WINDOW, DEFAULT_KEEPALIVE);
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97 }
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98
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99 void svr_getopts(int argc, char ** argv) {
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100
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101 unsigned int i;
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102 char ** next = 0;
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103 int nextisport = 0;
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104 char* recv_window_arg = NULL;
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105 char* keepalive_arg = NULL;
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106
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107 /* see printhelp() for options */
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108 svr_opts.rsakeyfile = NULL;
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109 svr_opts.dsskeyfile = NULL;
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110 svr_opts.bannerfile = NULL;
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111 svr_opts.banner = NULL;
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112 svr_opts.forkbg = 1;
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113 svr_opts.norootlogin = 0;
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114 svr_opts.noauthpass = 0;
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115 svr_opts.norootpass = 0;
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116 svr_opts.inetdmode = 0;
101
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117 svr_opts.portcount = 0;
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118 svr_opts.hostkey = NULL;
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119 svr_opts.pidfile = DROPBEAR_PIDFILE;
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120 #ifdef ENABLE_SVR_LOCALTCPFWD
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121 svr_opts.nolocaltcp = 0;
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122 #endif
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123 #ifdef ENABLE_SVR_REMOTETCPFWD
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124 svr_opts.noremotetcp = 0;
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125 #endif
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126 /* not yet
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127 opts.ipv4 = 1;
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128 opts.ipv6 = 1;
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129 */
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130 #ifdef DO_MOTD
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131 svr_opts.domotd = 1;
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132 #endif
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133 #ifndef DISABLE_SYSLOG
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134 svr_opts.usingsyslog = 1;
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135 #endif
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136 opts.recv_window = DEFAULT_RECV_WINDOW;
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137 opts.keepalive_secs = DEFAULT_KEEPALIVE;
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138
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139 #ifdef ENABLE_SVR_REMOTETCPFWD
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140 opts.listen_fwd_all = 0;
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141 #endif
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142
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143 for (i = 1; i < (unsigned int)argc; i++) {
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144 if (nextisport) {
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
145 addportandaddress(argv[i]);
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
146 nextisport = 0;
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
147 continue;
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
148 }
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
149
4
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diff changeset
150 if (next) {
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parents:
diff changeset
151 *next = argv[i];
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parents:
diff changeset
152 if (*next == NULL) {
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diff changeset
153 dropbear_exit("Invalid null argument");
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parents:
diff changeset
154 }
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parents:
diff changeset
155 next = 0x00;
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parents:
diff changeset
156 continue;
fe6bca95afa7 Makefile.in contains updated files required
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parents:
diff changeset
157 }
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diff changeset
158
fe6bca95afa7 Makefile.in contains updated files required
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parents:
diff changeset
159 if (argv[i][0] == '-') {
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parents:
diff changeset
160 switch (argv[i][1]) {
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parents:
diff changeset
161 case 'b':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
162 next = &svr_opts.bannerfile;
4
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diff changeset
163 break;
fe6bca95afa7 Makefile.in contains updated files required
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parents:
diff changeset
164 #ifdef DROPBEAR_DSS
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165 case 'd':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
166 next = &svr_opts.dsskeyfile;
4
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diff changeset
167 break;
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parents:
diff changeset
168 #endif
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parents:
diff changeset
169 #ifdef DROPBEAR_RSA
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diff changeset
170 case 'r':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
171 next = &svr_opts.rsakeyfile;
4
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diff changeset
172 break;
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parents:
diff changeset
173 #endif
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diff changeset
174 case 'F':
24
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parents: 4
diff changeset
175 svr_opts.forkbg = 0;
4
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176 break;
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diff changeset
177 #ifndef DISABLE_SYSLOG
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diff changeset
178 case 'E':
24
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parents: 4
diff changeset
179 svr_opts.usingsyslog = 0;
4
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180 break;
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diff changeset
181 #endif
271
be18c7dd486e Fix up #ifdefs for tcp forwarding
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
182 #ifdef ENABLE_SVR_LOCALTCPFWD
4
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diff changeset
183 case 'j':
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
184 svr_opts.nolocaltcp = 1;
4
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diff changeset
185 break;
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diff changeset
186 #endif
271
be18c7dd486e Fix up #ifdefs for tcp forwarding
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
187 #ifdef ENABLE_SVR_REMOTETCPFWD
4
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diff changeset
188 case 'k':
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
189 svr_opts.noremotetcp = 1;
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
190 break;
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
191 case 'a':
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
192 opts.listen_fwd_all = 1;
4
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diff changeset
193 break;
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parents:
diff changeset
194 #endif
71
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
195 #ifdef INETD_MODE
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
196 case 'i':
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
197 svr_opts.inetdmode = 1;
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
198 break;
ac96bc733e71 adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
199 #endif
4
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parents:
diff changeset
200 case 'p':
434
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
201 nextisport = 1;
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
202 break;
323
3bfbe95f9a14 Add -P pidfile patch from Swen Schillig
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
203 case 'P':
3bfbe95f9a14 Add -P pidfile patch from Swen Schillig
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
204 next = &svr_opts.pidfile;
3bfbe95f9a14 Add -P pidfile patch from Swen Schillig
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
205 break;
4
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parents:
diff changeset
206 #ifdef DO_MOTD
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parents:
diff changeset
207 /* motd is displayed by default, -m turns it off */
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parents:
diff changeset
208 case 'm':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
209 svr_opts.domotd = 0;
4
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parents:
diff changeset
210 break;
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parents:
diff changeset
211 #endif
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parents:
diff changeset
212 case 'w':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
213 svr_opts.norootlogin = 1;
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
214 break;
449
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
215 case 'W':
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
216 next = &recv_window_arg;
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
217 break;
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
218 case 'K':
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
219 next = &keepalive_arg;
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
220 break;
121
9337c9f9a607 PAM improvements
Matt Johnston <matt@ucc.asn.au>
parents: 104
diff changeset
221 #if defined(ENABLE_SVR_PASSWORD_AUTH) || defined(ENABLE_SVR_PAM_AUTH)
4
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parents:
diff changeset
222 case 's':
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
223 svr_opts.noauthpass = 1;
4
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parents:
diff changeset
224 break;
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parents:
diff changeset
225 case 'g':
24
469950e86d0f switching to global vars
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parents: 4
diff changeset
226 svr_opts.norootpass = 1;
4
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parents:
diff changeset
227 break;
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parents:
diff changeset
228 #endif
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parents:
diff changeset
229 case 'h':
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parents:
diff changeset
230 printhelp(argv[0]);
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parents:
diff changeset
231 exit(EXIT_FAILURE);
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parents:
diff changeset
232 break;
442
d82a2a44c684 Add -u option to specify /dev/urandom instead
Matt Johnston <matt@ucc.asn.au>
parents: 435
diff changeset
233 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
234 /* 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
235 break;
94
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline
Matt Johnston <matt@ucc.asn.au>
parents: 91
diff changeset
236 #ifdef DEBUG_TRACE
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline
Matt Johnston <matt@ucc.asn.au>
parents: 91
diff changeset
237 case 'v':
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline
Matt Johnston <matt@ucc.asn.au>
parents: 91
diff changeset
238 debug_trace = 1;
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline
Matt Johnston <matt@ucc.asn.au>
parents: 91
diff changeset
239 break;
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline
Matt Johnston <matt@ucc.asn.au>
parents: 91
diff changeset
240 #endif
4
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 default:
fe6bca95afa7 Makefile.in contains updated files required
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parents:
diff changeset
242 fprintf(stderr, "Unknown argument %s\n", argv[i]);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 printhelp(argv[0]);
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 exit(EXIT_FAILURE);
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parents:
diff changeset
245 break;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
249
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
250 /* Set up listening ports */
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
251 if (svr_opts.portcount == 0) {
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
252 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
253 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
Matt Johnston <matt@ucc.asn.au>
parents: 94
diff changeset
254 svr_opts.portcount = 1;
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
255 }
434
0aaaf68e97dc Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents: 271
diff changeset
256
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
257 if (svr_opts.dsskeyfile == NULL) {
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
258 svr_opts.dsskeyfile = DSS_PRIV_FILENAME;
4
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parents:
diff changeset
259 }
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
260 if (svr_opts.rsakeyfile == NULL) {
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
261 svr_opts.rsakeyfile = RSA_PRIV_FILENAME;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
264 if (svr_opts.bannerfile) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265 struct stat buf;
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
266 if (stat(svr_opts.bannerfile, &buf) != 0) {
4
fe6bca95afa7 Makefile.in contains updated files required
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parents:
diff changeset
267 dropbear_exit("Error opening banner file '%s'",
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
268 svr_opts.bannerfile);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
271 if (buf.st_size > MAX_BANNER_SIZE) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272 dropbear_exit("Banner file too large, max is %d bytes",
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
273 MAX_BANNER_SIZE);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
274 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
276 svr_opts.banner = buf_new(buf.st_size);
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
277 if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) {
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
278 dropbear_exit("Error reading banner file '%s'",
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
279 svr_opts.bannerfile);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
280 }
24
469950e86d0f switching to global vars
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
281 buf_setpos(svr_opts.banner, 0);
449
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
282
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
283 }
449
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
284
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
285 if (recv_window_arg) {
449
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
286 opts.recv_window = atol(recv_window_arg);
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
287 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
288 {
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
289 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
290 }
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
291 }
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
292
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
293 if (keepalive_arg) {
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
294 opts.keepalive_secs = strtoul(keepalive_arg, NULL, 10);
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295 if (opts.keepalive_secs == 0 && errno == EINVAL)
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296 {
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297 dropbear_exit("Bad keepalive '%s'", keepalive_arg);
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298 }
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299 }
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300 }
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301
434
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302 static void addportandaddress(char* spec) {
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303
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304 char *myspec = NULL;
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305
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306 if (svr_opts.portcount < DROPBEAR_MAX_PORTS) {
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307
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308 /* We don't free it, it becomes part of the runopt state */
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309 myspec = m_strdup(spec);
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310
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311 /* search for ':', that separates address and port */
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312 svr_opts.ports[svr_opts.portcount] = strchr(myspec, ':');
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313
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314 if (svr_opts.ports[svr_opts.portcount] == NULL) {
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315 /* no ':' -> the whole string specifies just a port */
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316 svr_opts.ports[svr_opts.portcount] = myspec;
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317 } else {
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318 /* Split the address/port */
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319 svr_opts.ports[svr_opts.portcount][0] = '\0';
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320 svr_opts.ports[svr_opts.portcount]++;
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321 svr_opts.addresses[svr_opts.portcount] = myspec;
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322 }
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323
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324 if (svr_opts.addresses[svr_opts.portcount] == NULL) {
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325 /* no address given -> fill in the default address */
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326 svr_opts.addresses[svr_opts.portcount] = m_strdup(DROPBEAR_DEFADDRESS);
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327 }
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328
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329 if (svr_opts.ports[svr_opts.portcount][0] == '\0') {
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330 /* empty port -> exit */
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331 dropbear_exit("Bad port");
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332 }
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333
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334 svr_opts.portcount++;
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335 }
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336 }
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337
47
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diff changeset
338 static void disablekey(int type, const char* filename) {
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339
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340 int i;
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341
47
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diff changeset
342 for (i = 0; sshhostkey[i].name != NULL; i++) {
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343 if (sshhostkey[i].val == type) {
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344 sshhostkey[i].usable = 0;
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345 break;
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346 }
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347 }
101
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348 dropbear_log(LOG_WARNING, "Failed reading '%s', disabling %s", filename,
47
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349 type == DROPBEAR_SIGNKEY_DSS ? "DSS" : "RSA");
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350 }
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351
101
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352 /* Must be called after syslog/etc is working */
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diff changeset
353 void loadhostkeys() {
4
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354
47
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diff changeset
355 int ret;
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diff changeset
356 int type;
4
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357
165
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358 TRACE(("enter loadhostkeys"))
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359
101
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diff changeset
360 svr_opts.hostkey = new_sign_key();
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361
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362 #ifdef DROPBEAR_RSA
47
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363 type = DROPBEAR_SIGNKEY_RSA;
101
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diff changeset
364 ret = readhostkey(svr_opts.rsakeyfile, svr_opts.hostkey, &type);
47
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diff changeset
365 if (ret == DROPBEAR_FAILURE) {
101
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
366 disablekey(DROPBEAR_SIGNKEY_RSA, svr_opts.rsakeyfile);
47
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diff changeset
367 }
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diff changeset
368 #endif
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369 #ifdef DROPBEAR_DSS
91
dc68f7624f17 Stupid DSS hostkey bug fixed.
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diff changeset
370 type = DROPBEAR_SIGNKEY_DSS;
101
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diff changeset
371 ret = readhostkey(svr_opts.dsskeyfile, svr_opts.hostkey, &type);
47
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diff changeset
372 if (ret == DROPBEAR_FAILURE) {
101
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
373 disablekey(DROPBEAR_SIGNKEY_DSS, svr_opts.dsskeyfile);
47
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diff changeset
374 }
4
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diff changeset
375 #endif
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376
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parents:
diff changeset
377 if ( 1
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parents:
diff changeset
378 #ifdef DROPBEAR_DSS
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
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diff changeset
379 && svr_opts.hostkey->dsskey == NULL
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diff changeset
380 #endif
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diff changeset
381 #ifdef DROPBEAR_RSA
101
72dc22f56858 Change the way we load keys/ports so we don't print error messages into our
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diff changeset
382 && svr_opts.hostkey->rsakey == NULL
4
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diff changeset
383 #endif
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parents:
diff changeset
384 ) {
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parents:
diff changeset
385 dropbear_exit("No hostkeys available");
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parents:
diff changeset
386 }
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parents:
diff changeset
387
165
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parents: 121
diff changeset
388 TRACE(("leave loadhostkeys"))
4
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diff changeset
389 }