Mercurial > dropbear
annotate cli-runopts.c @ 602:2d896267f16d
- Fix DROPBEAR_PRNGD_SOCKET since it doesn't need to call connect()
any more
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 27 Feb 2011 13:12:17 +0000 |
parents | a98a2138364a |
children | 1291413c7c7e |
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" |
64 | 31 #include "tcpfwd.h" |
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32 #include "list.h" |
39
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33 |
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34 cli_runopts cli_opts; /* GLOBAL */ |
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35 |
47 | 36 static void printhelp(); |
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37 static void parse_hostname(const char* orighostarg); |
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38 static void parse_multihop_hostname(const char* orighostarg, const char* argv0); |
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39 static void fill_own_user(); |
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40 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 41 static void loadidentityfile(const char* filename); |
42 #endif | |
64 | 43 #ifdef ENABLE_CLI_ANYTCPFWD |
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44 static void addforward(const char* str, m_list *fwdlist); |
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45 #endif |
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46 #ifdef ENABLE_CLI_NETCAT |
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47 static void add_netcat(const char *str); |
64 | 48 #endif |
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49 |
47 | 50 static void printhelp() { |
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51 |
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52 fprintf(stderr, "Dropbear client v%s\n" |
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53 #ifdef ENABLE_CLI_MULTIHOP |
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54 "Usage: %s [options] [user@]host[/port][,[user@]host/port],...] [command]\n" |
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55 #else |
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56 "Usage: %s [options] [user@]host[/port] [command]\n" |
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57 #endif |
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58 "Options are:\n" |
47 | 59 "-p <remoteport>\n" |
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60 "-l <username>\n" |
56
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61 "-t Allocate a pty\n" |
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62 "-T Don't allocate a pty\n" |
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63 "-N Don't run a remote command\n" |
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64 "-f Run in background after auth\n" |
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65 "-y Always accept remote host key if unknown\n" |
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66 "-s Request a subsystem (use for sftp)\n" |
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67 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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68 "-i <identityfile> (multiple allowed)\n" |
47 | 69 #endif |
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70 #ifdef ENABLE_CLI_AGENTFWD |
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71 "-A Enable agent auth forwarding\n" |
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72 #endif |
64 | 73 #ifdef ENABLE_CLI_LOCALTCPFWD |
580 | 74 "-L <[listenaddress:]listenport:remotehost:remoteport> Local port forwarding\n" |
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75 "-g Allow remote hosts to connect to forwarded ports\n" |
62 | 76 #endif |
64 | 77 #ifdef ENABLE_CLI_REMOTETCPFWD |
580 | 78 "-R <[listenaddress:]listenport:remotehost:remoteport> Remote port forwarding\n" |
62 | 79 #endif |
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80 "-W <receive_window_buffer> (default %d, larger may be faster, max 1MB)\n" |
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81 "-K <keepalive> (0 is never, default %d)\n" |
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82 "-I <idle_timeout> (0 is never, default %d)\n" |
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83 #ifdef ENABLE_CLI_NETCAT |
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84 "-B <endhost:endport> Netcat-alike forwarding\n" |
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85 #endif |
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86 #ifdef ENABLE_CLI_PROXYCMD |
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87 "-J <proxy_program> Use program pipe rather than TCP connection\n" |
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88 #endif |
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89 #ifdef DEBUG_TRACE |
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90 "-v verbose (compiled with DEBUG_TRACE)\n" |
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91 #endif |
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92 ,DROPBEAR_VERSION, cli_opts.progname, |
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93 DEFAULT_RECV_WINDOW, DEFAULT_KEEPALIVE, DEFAULT_IDLE_TIMEOUT); |
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94 |
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95 } |
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96 |
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97 void cli_getopts(int argc, char ** argv) { |
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98 unsigned int i, j; |
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99 char ** next = 0; |
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100 unsigned int cmdlen; |
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101 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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102 int nextiskey = 0; /* A flag if the next argument is a keyfile */ |
47 | 103 #endif |
64 | 104 #ifdef ENABLE_CLI_LOCALTCPFWD |
62 | 105 int nextislocal = 0; |
106 #endif | |
64 | 107 #ifdef ENABLE_CLI_REMOTETCPFWD |
62 | 108 int nextisremote = 0; |
109 #endif | |
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110 #ifdef ENABLE_CLI_NETCAT |
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111 int nextisnetcat = 0; |
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112 #endif |
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113 char* dummy = NULL; /* Not used for anything real */ |
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114 |
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115 char* recv_window_arg = NULL; |
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116 char* keepalive_arg = NULL; |
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117 char* idle_timeout_arg = NULL; |
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118 char *host_arg = NULL; |
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119 |
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120 /* see printhelp() for options */ |
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121 cli_opts.progname = argv[0]; |
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122 cli_opts.remotehost = NULL; |
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123 cli_opts.remoteport = NULL; |
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124 cli_opts.username = NULL; |
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125 cli_opts.cmd = NULL; |
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126 cli_opts.no_cmd = 0; |
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127 cli_opts.backgrounded = 0; |
47 | 128 cli_opts.wantpty = 9; /* 9 means "it hasn't been touched", gets set later */ |
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129 cli_opts.always_accept_key = 0; |
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130 cli_opts.is_subsystem = 0; |
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131 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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132 cli_opts.privkeys = list_new(); |
47 | 133 #endif |
64 | 134 #ifdef ENABLE_CLI_LOCALTCPFWD |
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135 cli_opts.localfwds = list_new(); |
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136 opts.listen_fwd_all = 0; |
62 | 137 #endif |
64 | 138 #ifdef ENABLE_CLI_REMOTETCPFWD |
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139 cli_opts.remotefwds = list_new(); |
62 | 140 #endif |
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141 #ifdef ENABLE_CLI_AGENTFWD |
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142 cli_opts.agent_fwd = 0; |
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143 cli_opts.agent_keys_loaded = 0; |
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144 #endif |
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145 #ifdef ENABLE_CLI_PROXYCMD |
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146 cli_opts.proxycmd = NULL; |
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147 #endif |
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148 #ifndef DISABLE_ZLIB |
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149 opts.enable_compress = 1; |
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150 #endif |
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151 /* not yet |
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152 opts.ipv4 = 1; |
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153 opts.ipv6 = 1; |
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154 */ |
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155 opts.recv_window = DEFAULT_RECV_WINDOW; |
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156 |
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157 fill_own_user(); |
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158 |
47 | 159 /* Iterate all the arguments */ |
46
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160 for (i = 1; i < (unsigned int)argc; i++) { |
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161 #ifdef ENABLE_CLI_PUBKEY_AUTH |
46
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162 if (nextiskey) { |
47 | 163 /* Load a hostkey since the previous argument was "-i" */ |
164 loadidentityfile(argv[i]); | |
165 nextiskey = 0; | |
166 continue; | |
39
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167 } |
47 | 168 #endif |
64 | 169 #ifdef ENABLE_CLI_REMOTETCPFWD |
170 if (nextisremote) { | |
165
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171 TRACE(("nextisremote true")) |
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172 addforward(argv[i], cli_opts.remotefwds); |
64 | 173 nextisremote = 0; |
174 continue; | |
175 } | |
176 #endif | |
177 #ifdef ENABLE_CLI_LOCALTCPFWD | |
178 if (nextislocal) { | |
165
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179 TRACE(("nextislocal true")) |
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180 addforward(argv[i], cli_opts.localfwds); |
64 | 181 nextislocal = 0; |
182 continue; | |
183 } | |
184 #endif | |
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185 #ifdef ENABLE_CLI_NETCAT |
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186 if (nextisnetcat) { |
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187 TRACE(("nextisnetcat true")) |
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188 add_netcat(argv[i]); |
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189 nextisnetcat = 0; |
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190 continue; |
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191 } |
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192 #endif |
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193 if (next) { |
47 | 194 /* The previous flag set a value to assign */ |
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195 *next = argv[i]; |
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196 if (*next == NULL) { |
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197 dropbear_exit("Invalid null argument"); |
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198 } |
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199 next = NULL; |
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200 continue; |
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201 } |
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202 |
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203 if (argv[i][0] == '-') { |
47 | 204 /* A flag *waves* */ |
46
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205 |
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206 switch (argv[i][1]) { |
418
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207 case 'y': /* always accept the remote hostkey */ |
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208 cli_opts.always_accept_key = 1; |
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209 break; |
47 | 210 case 'p': /* remoteport */ |
46
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211 next = &cli_opts.remoteport; |
39
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212 break; |
68
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213 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 214 case 'i': /* an identityfile */ |
134 | 215 /* Keep scp happy when it changes "-i file" to "-ifile" */ |
216 if (strlen(argv[i]) > 2) { | |
217 loadidentityfile(&argv[i][2]); | |
218 } else { | |
219 nextiskey = 1; | |
220 } | |
39
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221 break; |
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222 #endif |
47 | 223 case 't': /* we want a pty */ |
224 cli_opts.wantpty = 1; | |
225 break; | |
226 case 'T': /* don't want a pty */ | |
227 cli_opts.wantpty = 0; | |
228 break; | |
325
0e4f225b7e07
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229 case 'N': |
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230 cli_opts.no_cmd = 1; |
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|
231 break; |
326
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232 case 'f': |
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|
233 cli_opts.backgrounded = 1; |
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234 break; |
497
ae600f1eef81
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diff
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235 case 's': |
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236 cli_opts.is_subsystem = 1; |
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237 break; |
64 | 238 #ifdef ENABLE_CLI_LOCALTCPFWD |
239 case 'L': | |
240 nextislocal = 1; | |
241 break; | |
258
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* add -g (dbclient) and -a (dropbear) options for allowing non-local
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242 case 'g': |
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243 opts.listen_fwd_all = 1; |
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244 break; |
64 | 245 #endif |
246 #ifdef ENABLE_CLI_REMOTETCPFWD | |
247 case 'R': | |
248 nextisremote = 1; | |
249 break; | |
250 #endif | |
485
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251 #ifdef ENABLE_CLI_NETCAT |
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252 case 'B': |
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253 nextisnetcat = 1; |
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254 break; |
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255 #endif |
479
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256 #ifdef ENABLE_CLI_PROXYCMD |
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257 case 'J': |
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|
258 next = &cli_opts.proxycmd; |
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259 break; |
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260 #endif |
66
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261 case 'l': |
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262 next = &cli_opts.username; |
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263 break; |
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264 case 'h': |
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|
265 printhelp(); |
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266 exit(EXIT_SUCCESS); |
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267 break; |
442
d82a2a44c684
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|
268 case 'u': |
446
2cd2edfa11ee
Just use /dev/urandom since that's what everyone ends up using anyway.
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diff
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|
269 /* backwards compatibility with old urandom option */ |
442
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diff
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|
270 break; |
449
3e6c536bc023
Add -W <windowsize> argument and document it.
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|
271 case 'W': |
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272 next = &recv_window_arg; |
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|
273 break; |
454
7e43f5e473b9
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449
diff
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|
274 case 'K': |
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|
275 next = &keepalive_arg; |
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276 break; |
513
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277 case 'I': |
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|
278 next = &idle_timeout_arg; |
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|
279 break; |
225
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280 #ifdef ENABLE_CLI_AGENTFWD |
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281 case 'A': |
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|
282 cli_opts.agent_fwd = 1; |
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|
283 break; |
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284 #endif |
94
c85c88500ea6
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|
285 #ifdef DEBUG_TRACE |
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|
286 case 'v': |
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|
287 debug_trace = 1; |
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|
288 break; |
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|
289 #endif |
66
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290 case 'F': |
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|
291 case 'e': |
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|
292 case 'c': |
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|
293 case 'm': |
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|
294 case 'D': |
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|
295 #ifndef ENABLE_CLI_REMOTETCPFWD |
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296 case 'R': |
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|
297 #endif |
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diff
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298 #ifndef ENABLE_CLI_LOCALTCPFWD |
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299 case 'L': |
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300 #endif |
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301 case 'o': |
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302 case 'b': |
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303 next = &dummy; |
39
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304 default: |
66
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305 fprintf(stderr, |
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306 "WARNING: Ignoring unknown argument '%s'\n", argv[i]); |
39
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307 break; |
46
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308 } /* Switch */ |
105 | 309 |
310 /* Now we handle args where they might be "-luser" (no spaces)*/ | |
311 if (next && strlen(argv[i]) > 2) { | |
312 *next = &argv[i][2]; | |
313 next = NULL; | |
314 } | |
46
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315 |
47 | 316 continue; /* next argument */ |
317 | |
46
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318 } else { |
165
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319 TRACE(("non-flag arg: '%s'", argv[i])) |
46
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320 |
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321 /* Either the hostname or commands */ |
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322 |
544
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323 if (host_arg == NULL) { |
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324 host_arg = argv[i]; |
47 | 325 } else { |
46
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326 |
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327 /* this is part of the commands to send - after this we |
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328 * don't parse any more options, and flags are sent as the |
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329 * command */ |
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330 cmdlen = 0; |
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331 for (j = i; j < (unsigned int)argc; j++) { |
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332 cmdlen += strlen(argv[j]) + 1; /* +1 for spaces */ |
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333 } |
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334 /* Allocate the space */ |
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335 cli_opts.cmd = (char*)m_malloc(cmdlen); |
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336 cli_opts.cmd[0] = '\0'; |
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337 |
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338 /* Append all the bits */ |
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339 for (j = i; j < (unsigned int)argc; j++) { |
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340 strlcat(cli_opts.cmd, argv[j], cmdlen); |
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341 strlcat(cli_opts.cmd, " ", cmdlen); |
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342 } |
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343 /* It'll be null-terminated here */ |
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344 |
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345 /* We've eaten all the options and flags */ |
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346 break; |
39
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347 } |
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348 } |
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349 } |
47 | 350 |
487
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351 /* And now a few sanity checks and setup */ |
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352 |
544
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353 if (host_arg == NULL) { |
66
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354 printhelp(); |
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355 exit(EXIT_FAILURE); |
47 | 356 } |
357 | |
358 if (cli_opts.remoteport == NULL) { | |
359 cli_opts.remoteport = "22"; | |
360 } | |
361 | |
362 /* If not explicitly specified with -t or -T, we don't want a pty if | |
363 * there's a command, but we do otherwise */ | |
364 if (cli_opts.wantpty == 9) { | |
365 if (cli_opts.cmd == NULL) { | |
366 cli_opts.wantpty = 1; | |
367 } else { | |
368 cli_opts.wantpty = 0; | |
369 } | |
370 } | |
326
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371 |
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372 if (cli_opts.backgrounded && cli_opts.cmd == NULL |
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373 && cli_opts.no_cmd == 0) { |
594
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374 dropbear_exit("Command required for -f"); |
326
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375 } |
449
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376 |
483
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377 if (recv_window_arg) { |
449
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378 opts.recv_window = atol(recv_window_arg); |
483
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379 if (opts.recv_window == 0 || opts.recv_window > MAX_RECV_WINDOW) { |
449
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380 dropbear_exit("Bad recv window '%s'", recv_window_arg); |
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381 } |
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382 } |
454
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383 if (keepalive_arg) { |
568
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384 unsigned int val; |
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385 if (m_str_to_uint(keepalive_arg, &val) == DROPBEAR_FAILURE) { |
454
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386 dropbear_exit("Bad keepalive '%s'", keepalive_arg); |
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387 } |
568
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388 opts.keepalive_secs = val; |
454
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389 } |
487
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390 |
513
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|
391 if (idle_timeout_arg) { |
568
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|
392 unsigned int val; |
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393 if (m_str_to_uint(idle_timeout_arg, &val) == DROPBEAR_FAILURE) { |
513
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394 dropbear_exit("Bad idle_timeout '%s'", idle_timeout_arg); |
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395 } |
568
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396 opts.idle_timeout_secs = val; |
513
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397 } |
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398 |
487
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399 #ifdef ENABLE_CLI_NETCAT |
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400 if (cli_opts.cmd && cli_opts.netcat_host) { |
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401 dropbear_log(LOG_INFO, "Ignoring command '%s' in netcat mode", cli_opts.cmd); |
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402 } |
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403 #endif |
544
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404 |
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405 /* The hostname gets set up last, since |
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406 * in multi-hop mode it will require knowledge |
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407 * of other flags such as -i */ |
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408 #ifdef ENABLE_CLI_MULTIHOP |
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409 parse_multihop_hostname(host_arg, argv[0]); |
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410 #else |
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411 parse_hostname(host_arg); |
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412 #endif |
39
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413 } |
47 | 414 |
68
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cleaning up the pubkey defines
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66
diff
changeset
|
415 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 416 static void loadidentityfile(const char* filename) { |
417 sign_key *key; | |
418 int keytype; | |
419 | |
420 key = new_sign_key(); | |
421 keytype = DROPBEAR_SIGNKEY_ANY; | |
422 if ( readhostkey(filename, key, &keytype) != DROPBEAR_SUCCESS ) { | |
423 fprintf(stderr, "Failed loading keyfile '%s'\n", filename); | |
424 sign_key_free(key); | |
425 } else { | |
551
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|
426 key->type = keytype; |
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427 key->source = SIGNKEY_SOURCE_RAW_FILE; |
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428 key->filename = m_strdup(filename); |
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429 list_append(cli_opts.privkeys, key); |
47 | 430 } |
431 } | |
432 #endif | |
433 | |
487
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434 #ifdef ENABLE_CLI_MULTIHOP |
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|
435 |
544
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|
436 static char* |
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|
437 multihop_passthrough_args() { |
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438 char *ret; |
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|
439 int total; |
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changeset
|
440 unsigned int len = 0; |
551
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diff
changeset
|
441 m_list_elem *iter; |
544
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|
442 /* Fill out -i and -W options that make sense for all |
9e51707cd6f2
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443 * the intermediate processes */ |
551
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changeset
|
444 for (iter = cli_opts.privkeys->first; iter; iter = iter->next) |
544
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- Make -i and -W pass through multihop arguments
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|
445 { |
551
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diff
changeset
|
446 sign_key * key = (sign_key*)iter->item; |
c3f2ec71e3d4
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diff
changeset
|
447 len += 3 + strlen(key->filename); |
544
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|
448 } |
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|
449 len += 20; // space for -W <size>, terminator. |
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|
450 ret = m_malloc(len); |
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diff
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|
451 total = 0; |
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parents:
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diff
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|
452 |
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diff
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|
453 if (opts.recv_window != DEFAULT_RECV_WINDOW) |
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diff
changeset
|
454 { |
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parents:
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diff
changeset
|
455 int written = snprintf(ret+total, len-total, "-W %d", opts.recv_window); |
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diff
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|
456 total += written; |
9e51707cd6f2
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parents:
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diff
changeset
|
457 } |
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parents:
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diff
changeset
|
458 |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
459 for (iter = cli_opts.privkeys->first; iter; iter = iter->next) |
544
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parents:
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|
460 { |
551
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parents:
546
diff
changeset
|
461 sign_key * key = (sign_key*)iter->item; |
544
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parents:
541
diff
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|
462 const size_t size = len - total; |
551
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parents:
546
diff
changeset
|
463 int written = snprintf(ret+total, size, "-i %s", key->filename); |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
551
diff
changeset
|
464 dropbear_assert((unsigned int)written < size); |
544
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diff
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|
465 total += written; |
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parents:
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diff
changeset
|
466 } |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
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diff
changeset
|
467 |
9e51707cd6f2
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parents:
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diff
changeset
|
468 return ret; |
9e51707cd6f2
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parents:
541
diff
changeset
|
469 } |
9e51707cd6f2
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parents:
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diff
changeset
|
470 |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
471 /* Sets up 'onion-forwarding' connections. This will spawn |
79c657a673ec
- Allow specifying a port with host/port.
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parents:
487
diff
changeset
|
472 * a separate dbclient process for each hop. |
487
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parents:
486
diff
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|
473 * As an example, if the cmdline is |
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486
diff
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|
474 * dbclient wrt,madako,canyons |
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|
475 * then we want to run: |
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diff
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|
476 * dbclient -J "dbclient -B canyons:22 wrt,madako" canyons |
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parents:
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diff
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|
477 * and then the inner dbclient will recursively run: |
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diff
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|
478 * dbclient -J "dbclient -B madako:22 wrt" madako |
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|
479 * etc for as many hosts as we want. |
489
79c657a673ec
- Allow specifying a port with host/port.
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487
diff
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|
480 * |
79c657a673ec
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parents:
487
diff
changeset
|
481 * Ports for hosts can be specified as host/port. |
487
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diff
changeset
|
482 */ |
489
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- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
483 static void parse_multihop_hostname(const char* orighostarg, const char* argv0) { |
487
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diff
changeset
|
484 char *userhostarg = NULL; |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
Matt Johnston <matt@ucc.asn.au>
parents:
541
diff
changeset
|
485 char *hostbuf = NULL; |
574
b6665c1eac43
Remove extraneous semicolon
Matt Johnston <matt@ucc.asn.au>
parents:
568
diff
changeset
|
486 char *last_hop = NULL; |
487
2e17f82a7330
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diff
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|
487 char *remainder = NULL; |
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diff
changeset
|
488 |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
489 /* both scp and rsync parse a user@host argument |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
490 * and turn it into "-l user host". This breaks |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
491 * for our multihop syntax, so we suture it back together. |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
492 * This will break usernames that have both '@' and ',' in them, |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
493 * though that should be fairly uncommon. */ |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
494 if (cli_opts.username |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
495 && strchr(cli_opts.username, ',') |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
496 && strchr(cli_opts.username, '@')) { |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
497 unsigned int len = strlen(orighostarg) + strlen(cli_opts.username) + 2; |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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541
diff
changeset
|
498 hostbuf = m_malloc(len); |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
499 snprintf(hostbuf, len, "%s@%s", cli_opts.username, orighostarg); |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
500 } else { |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
501 hostbuf = m_strdup(orighostarg); |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
Matt Johnston <matt@ucc.asn.au>
parents:
492
diff
changeset
|
502 } |
544
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- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
503 userhostarg = hostbuf; |
487
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diff
changeset
|
504 |
2e17f82a7330
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diff
changeset
|
505 last_hop = strrchr(userhostarg, ','); |
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diff
changeset
|
506 if (last_hop) { |
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diff
changeset
|
507 if (last_hop == userhostarg) { |
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486
diff
changeset
|
508 dropbear_exit("Bad multi-hop hostnames"); |
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486
diff
changeset
|
509 } |
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diff
changeset
|
510 *last_hop = '\0'; |
2e17f82a7330
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diff
changeset
|
511 last_hop++; |
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diff
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|
512 remainder = userhostarg; |
2e17f82a7330
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diff
changeset
|
513 userhostarg = last_hop; |
2e17f82a7330
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diff
changeset
|
514 } |
2e17f82a7330
Add multihop 'onion-forwarding' mode. Needs refinement, works.
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parents:
486
diff
changeset
|
515 |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
516 parse_hostname(userhostarg); |
487
2e17f82a7330
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parents:
486
diff
changeset
|
517 |
2e17f82a7330
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486
diff
changeset
|
518 if (last_hop) { |
2e17f82a7330
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486
diff
changeset
|
519 /* Set up the proxycmd */ |
2e17f82a7330
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parents:
486
diff
changeset
|
520 unsigned int cmd_len = 0; |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
Matt Johnston <matt@ucc.asn.au>
parents:
541
diff
changeset
|
521 char *passthrough_args = multihop_passthrough_args(); |
487
2e17f82a7330
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parents:
486
diff
changeset
|
522 if (cli_opts.proxycmd) { |
2e17f82a7330
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486
diff
changeset
|
523 dropbear_exit("-J can't be used with multihop mode"); |
2e17f82a7330
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parents:
486
diff
changeset
|
524 } |
2e17f82a7330
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parents:
486
diff
changeset
|
525 if (cli_opts.remoteport == NULL) { |
2e17f82a7330
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parents:
486
diff
changeset
|
526 cli_opts.remoteport = "22"; |
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parents:
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diff
changeset
|
527 } |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
528 cmd_len = strlen(argv0) + strlen(remainder) |
487
2e17f82a7330
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parents:
486
diff
changeset
|
529 + strlen(cli_opts.remotehost) + strlen(cli_opts.remoteport) |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
530 + strlen(passthrough_args) |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
531 + 30; |
487
2e17f82a7330
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parents:
486
diff
changeset
|
532 cli_opts.proxycmd = m_malloc(cmd_len); |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
533 snprintf(cli_opts.proxycmd, cmd_len, "%s -B %s:%s %s %s", |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
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diff
changeset
|
534 argv0, cli_opts.remotehost, cli_opts.remoteport, |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
535 passthrough_args, remainder); |
575
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
536 #ifndef DISABLE_ZLIB |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
537 /* The stream will be incompressible since it's encrypted. */ |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
538 opts.enable_compress = 0; |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
539 #endif |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
540 m_free(passthrough_args); |
487
2e17f82a7330
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parents:
486
diff
changeset
|
541 } |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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parents:
541
diff
changeset
|
542 m_free(hostbuf); |
487
2e17f82a7330
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parents:
486
diff
changeset
|
543 } |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
544 #endif /* !ENABLE_CLI_MULTIHOP */ |
47 | 545 |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
546 /* Parses a [user@]hostname[/port] argument. */ |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
547 static void parse_hostname(const char* orighostarg) { |
64 | 548 char *userhostarg = NULL; |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
549 char *port = NULL; |
64 | 550 |
551 userhostarg = m_strdup(orighostarg); | |
47 | 552 |
553 cli_opts.remotehost = strchr(userhostarg, '@'); | |
554 if (cli_opts.remotehost == NULL) { | |
555 /* no username portion, the cli-auth.c code can figure the | |
556 * local user's name */ | |
557 cli_opts.remotehost = userhostarg; | |
558 } else { | |
559 cli_opts.remotehost[0] = '\0'; /* Split the user/host */ | |
560 cli_opts.remotehost++; | |
561 cli_opts.username = userhostarg; | |
562 } | |
563 | |
564 if (cli_opts.username == NULL) { | |
483
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
565 cli_opts.username = m_strdup(cli_opts.own_user); |
47 | 566 } |
567 | |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
568 port = strchr(cli_opts.remotehost, '/'); |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
569 if (port) { |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
570 *port = '\0'; |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
571 cli_opts.remoteport = port+1; |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
572 } |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
573 |
47 | 574 if (cli_opts.remotehost[0] == '\0') { |
575 dropbear_exit("Bad hostname"); | |
576 } | |
577 } | |
64 | 578 |
485
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
579 #ifdef ENABLE_CLI_NETCAT |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
580 static void add_netcat(const char* origstr) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
581 char *portstr = NULL; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
582 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
583 char * str = m_strdup(origstr); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
584 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
585 portstr = strchr(str, ':'); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
586 if (portstr == NULL) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
587 TRACE(("No netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
588 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
589 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
590 *portstr = '\0'; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
591 portstr++; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
592 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
593 if (strchr(portstr, ':')) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
594 TRACE(("Multiple netcat colons")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
595 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
596 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
597 |
492
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
598 if (m_str_to_uint(portstr, &cli_opts.netcat_port) == DROPBEAR_FAILURE) { |
485
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
599 TRACE(("bad netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
600 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
601 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
602 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
603 if (cli_opts.netcat_port > 65535) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
604 TRACE(("too large netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
605 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
606 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
607 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
608 cli_opts.netcat_host = str; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
609 return; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
610 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
611 fail: |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
612 dropbear_exit("Bad netcat endpoint '%s'", origstr); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
613 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
614 #endif |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
615 |
483
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
616 static void fill_own_user() { |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
617 uid_t uid; |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
618 struct passwd *pw = NULL; |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
619 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
620 uid = getuid(); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
621 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
622 pw = getpwuid(uid); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
623 if (pw == NULL || pw->pw_name == NULL) { |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
624 dropbear_exit("Unknown own user"); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
625 } |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
626 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
627 cli_opts.own_user = m_strdup(pw->pw_name); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
628 } |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
629 |
64 | 630 #ifdef ENABLE_CLI_ANYTCPFWD |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
631 /* Turn a "[listenaddr:]listenport:remoteaddr:remoteport" string into into a forwarding |
64 | 632 * set, and add it to the forwarding list */ |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
633 static void addforward(const char* origstr, m_list *fwdlist) { |
64 | 634 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
635 char *part1 = NULL, *part2 = NULL, *part3 = NULL, *part4 = NULL; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
636 char * listenaddr = NULL; |
64 | 637 char * listenport = NULL; |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
638 char * connectaddr = NULL; |
64 | 639 char * connectport = NULL; |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
640 struct TCPFwdEntry* newfwd = NULL; |
64 | 641 char * str = NULL; |
642 | |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
134
diff
changeset
|
643 TRACE(("enter addforward")) |
64 | 644 |
411
253958302381
Revert bogus fix, make a note that the var is meant to 'leak'
Matt Johnston <matt@ucc.asn.au>
parents:
407
diff
changeset
|
645 /* We need to split the original argument up. This var |
253958302381
Revert bogus fix, make a note that the var is meant to 'leak'
Matt Johnston <matt@ucc.asn.au>
parents:
407
diff
changeset
|
646 is never free()d. */ |
64 | 647 str = m_strdup(origstr); |
648 | |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
649 part1 = str; |
64 | 650 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
651 part2 = strchr(str, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
652 if (part2 == NULL) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
653 TRACE(("part2 == NULL")) |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
654 goto fail; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
655 } |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
656 *part2 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
657 part2++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
658 |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
659 part3 = strchr(part2, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
660 if (part3 == NULL) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
661 TRACE(("part3 == NULL")) |
64 | 662 goto fail; |
663 } | |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
664 *part3 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
665 part3++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
666 |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
667 part4 = strchr(part3, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
668 if (part4) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
669 *part4 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
670 part4++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
671 } |
64 | 672 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
673 if (part4) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
674 listenaddr = part1; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
675 listenport = part2; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
676 connectaddr = part3; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
677 connectport = part4; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
678 } else { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
679 listenaddr = NULL; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
680 listenport = part1; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
681 connectaddr = part2; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
682 connectport = part3; |
64 | 683 } |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
684 |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
685 newfwd = m_malloc(sizeof(struct TCPFwdEntry)); |
64 | 686 |
687 /* Now we check the ports - note that the port ints are unsigned, | |
688 * the check later only checks for >= MAX_PORT */ | |
492
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
689 if (m_str_to_uint(listenport, &newfwd->listenport) == DROPBEAR_FAILURE) { |
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
690 TRACE(("bad listenport strtoul")) |
64 | 691 goto fail; |
692 } | |
693 | |
492
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
694 if (m_str_to_uint(connectport, &newfwd->connectport) == DROPBEAR_FAILURE) { |
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
695 TRACE(("bad connectport strtoul")) |
64 | 696 goto fail; |
697 } | |
698 | |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
699 newfwd->listenaddr = listenaddr; |
64 | 700 newfwd->connectaddr = connectaddr; |
701 | |
702 if (newfwd->listenport > 65535) { | |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
134
diff
changeset
|
703 TRACE(("listenport > 65535")) |
64 | 704 goto badport; |
705 } | |
706 | |
707 if (newfwd->connectport > 65535) { | |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
134
diff
changeset
|
708 TRACE(("connectport > 65535")) |
64 | 709 goto badport; |
710 } | |
711 | |
505
805e557fdff7
Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents:
497
diff
changeset
|
712 newfwd->have_reply = 0; |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
713 list_append(fwdlist, newfwd); |
64 | 714 |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
134
diff
changeset
|
715 TRACE(("leave addforward: done")) |
64 | 716 return; |
717 | |
718 fail: | |
719 dropbear_exit("Bad TCP forward '%s'", origstr); | |
720 | |
721 badport: | |
722 dropbear_exit("Bad TCP port in '%s'", origstr); | |
723 } | |
724 #endif |