1 | /* $Id: VBoxManageDHCPServer.cpp 33489 2010-10-27 10:31:41Z vboxsync $ */
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2 | /** @file
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3 | * VBoxManage - Implementation of dhcpserver command.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2010 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | /*******************************************************************************
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19 | * Header Files *
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20 | *******************************************************************************/
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21 | #ifndef VBOX_ONLY_DOCS
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22 | #include <VBox/com/com.h>
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23 | #include <VBox/com/array.h>
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24 | #include <VBox/com/ErrorInfo.h>
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25 | #include <VBox/com/errorprint.h>
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26 | #include <VBox/com/EventQueue.h>
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27 |
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28 | #include <VBox/com/VirtualBox.h>
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29 | #endif /* !VBOX_ONLY_DOCS */
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30 |
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31 | #include <iprt/cidr.h>
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32 | #include <iprt/param.h>
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33 | #include <iprt/path.h>
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34 | #include <iprt/stream.h>
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35 | #include <iprt/string.h>
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36 | #include <iprt/net.h>
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37 | #include <iprt/getopt.h>
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38 | #include <iprt/ctype.h>
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39 |
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40 | #include <VBox/log.h>
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41 |
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42 | #include "VBoxManage.h"
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43 |
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44 | #ifndef VBOX_ONLY_DOCS
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45 | using namespace com;
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46 |
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47 | typedef enum enMainOpCodes
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48 | {
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49 | OP_ADD = 1000,
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50 | OP_REMOVE,
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51 | OP_MODIFY
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52 | } OPCODE;
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53 |
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54 | static const RTGETOPTDEF g_aDHCPIPOptions[]
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55 | = {
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56 | { "--netname", 't', RTGETOPT_REQ_STRING }, /* we use 't' instead of 'n' to avoid
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57 | * 1. the misspelled "-enable" long option to be treated as 'e' (for -enable) + 'n' (for -netname) + "<the_rest_opt>" (for net name)
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58 | * 2. the misspelled "-netmask" to be treated as 'n' (for -netname) + "<the_rest_opt>" (for net name)
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59 | */
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60 | { "-netname", 't', RTGETOPT_REQ_STRING }, // deprecated (if removed check below)
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61 | { "--ifname", 'f', RTGETOPT_REQ_STRING }, /* we use 'f' instead of 'i' to avoid
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62 | * 1. the misspelled "-disable" long option to be treated as 'd' (for -disable) + 'i' (for -ifname) + "<the_rest_opt>" (for if name)
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63 | */
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64 | { "-ifname", 'f', RTGETOPT_REQ_STRING }, // deprecated
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65 | { "--ip", 'a', RTGETOPT_REQ_STRING },
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66 | { "-ip", 'a', RTGETOPT_REQ_STRING }, // deprecated
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67 | { "--netmask", 'm', RTGETOPT_REQ_STRING },
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68 | { "-netmask", 'm', RTGETOPT_REQ_STRING }, // deprecated
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69 | { "--lowerip", 'l', RTGETOPT_REQ_STRING },
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70 | { "-lowerip", 'l', RTGETOPT_REQ_STRING }, // deprecated
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71 | { "--upperip", 'u', RTGETOPT_REQ_STRING },
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72 | { "-upperip", 'u', RTGETOPT_REQ_STRING }, // deprecated
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73 | { "--enable", 'e', RTGETOPT_REQ_NOTHING },
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74 | { "-enable", 'e', RTGETOPT_REQ_NOTHING }, // deprecated
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75 | { "--disable", 'd', RTGETOPT_REQ_NOTHING },
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76 | { "-disable", 'd', RTGETOPT_REQ_NOTHING } // deprecated
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77 | };
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78 |
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79 | static int handleOp(HandlerArg *a, OPCODE enmCode, int iStart, int *pcProcessed)
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80 | {
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81 | if (a->argc - iStart < 2)
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82 | return errorSyntax(USAGE_DHCPSERVER, "Not enough parameters");
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83 |
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84 | int index = iStart;
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85 | HRESULT rc;
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86 |
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87 | const char *pNetName = NULL;
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88 | const char *pIfName = NULL;
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89 | const char * pIp = NULL;
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90 | const char * pNetmask = NULL;
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91 | const char * pLowerIp = NULL;
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92 | const char * pUpperIp = NULL;
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93 | int enable = -1;
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94 |
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95 | int c;
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96 | RTGETOPTUNION ValueUnion;
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97 | RTGETOPTSTATE GetState;
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98 | RTGetOptInit(&GetState,
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99 | a->argc,
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100 | a->argv,
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101 | g_aDHCPIPOptions,
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102 | enmCode != OP_REMOVE ? RT_ELEMENTS(g_aDHCPIPOptions) : 4, /* we use only --netname and --ifname for remove*/
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103 | index,
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104 | RTGETOPTINIT_FLAGS_NO_STD_OPTS);
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105 | while ((c = RTGetOpt(&GetState, &ValueUnion)))
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106 | {
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107 | switch (c)
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108 | {
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109 | case 't': // --netname
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110 | if(pNetName)
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111 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --netname once.");
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112 | else if (pIfName)
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113 | return errorSyntax(USAGE_DHCPSERVER, "You can either use a --netname or --ifname for identifying the DHCP server.");
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114 | else
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115 | {
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116 | pNetName = ValueUnion.psz;
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117 | }
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118 | break;
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119 | case 'f': // --ifname
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120 | if(pIfName)
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121 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --ifname once.");
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122 | else if (pNetName)
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123 | return errorSyntax(USAGE_DHCPSERVER, "You can either use a --netname or --ipname for identifying the DHCP server.");
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124 | else
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125 | {
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126 | pIfName = ValueUnion.psz;
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127 | }
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128 | break;
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129 | case 'a': // -ip
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130 | if(pIp)
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131 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --ip once.");
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132 | else
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133 | {
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134 | pIp = ValueUnion.psz;
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135 | }
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136 | break;
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137 | case 'm': // --netmask
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138 | if(pNetmask)
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139 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --netmask once.");
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140 | else
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141 | {
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142 | pNetmask = ValueUnion.psz;
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143 | }
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144 | break;
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145 | case 'l': // --lowerip
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146 | if(pLowerIp)
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147 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --lowerip once.");
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148 | else
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149 | {
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150 | pLowerIp = ValueUnion.psz;
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151 | }
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152 | break;
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153 | case 'u': // --upperip
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154 | if(pUpperIp)
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155 | return errorSyntax(USAGE_DHCPSERVER, "You can only specify --upperip once.");
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156 | else
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157 | {
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158 | pUpperIp = ValueUnion.psz;
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159 | }
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160 | break;
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161 | case 'e': // --enable
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162 | if(enable >= 0)
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163 | return errorSyntax(USAGE_DHCPSERVER, "You can specify either --enable or --disable once.");
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164 | else
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165 | {
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166 | enable = 1;
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167 | }
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168 | break;
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169 | case 'd': // --disable
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170 | if(enable >= 0)
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171 | return errorSyntax(USAGE_DHCPSERVER, "You can specify either --enable or --disable once.");
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172 | else
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173 | {
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174 | enable = 0;
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175 | }
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176 | break;
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177 | case VINF_GETOPT_NOT_OPTION:
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178 | return errorSyntax(USAGE_DHCPSERVER, "unhandled parameter: %s", ValueUnion.psz);
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179 | break;
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180 | default:
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181 | if (c > 0)
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182 | {
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183 | if (RT_C_IS_GRAPH(c))
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184 | return errorSyntax(USAGE_DHCPSERVER, "unhandled option: -%c", c);
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185 | else
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186 | return errorSyntax(USAGE_DHCPSERVER, "unhandled option: %i", c);
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187 | }
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188 | else if (c == VERR_GETOPT_UNKNOWN_OPTION)
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189 | return errorSyntax(USAGE_DHCPSERVER, "unknown option: %s", ValueUnion.psz);
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190 | else if (ValueUnion.pDef)
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191 | return errorSyntax(USAGE_DHCPSERVER, "%s: %Rrs", ValueUnion.pDef->pszLong, c);
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192 | else
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193 | return errorSyntax(USAGE_DHCPSERVER, "%Rrs", c);
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194 | }
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195 | }
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196 |
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197 | if(! pNetName && !pIfName)
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198 | return errorSyntax(USAGE_DHCPSERVER, "You need to specify either --netname or --ifname to identify the DHCP server");
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199 |
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200 | if(enmCode != OP_REMOVE)
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201 | {
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202 | if(enable < 0 || pIp || pNetmask || pLowerIp || pUpperIp)
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203 | {
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204 | if(!pIp)
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205 | return errorSyntax(USAGE_DHCPSERVER, "You need to specify --ip option");
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206 |
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207 | if(!pNetmask)
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208 | return errorSyntax(USAGE_DHCPSERVER, "You need to specify --netmask option");
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209 |
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210 | if(!pLowerIp)
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211 | return errorSyntax(USAGE_DHCPSERVER, "You need to specify --lowerip option");
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212 |
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213 | if(!pUpperIp)
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214 | return errorSyntax(USAGE_DHCPSERVER, "You need to specify --upperip option");
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215 | }
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216 | }
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217 |
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218 | Bstr NetName;
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219 | if(!pNetName)
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220 | {
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221 | ComPtr<IHost> host;
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222 | CHECK_ERROR(a->virtualBox, COMGETTER(Host)(host.asOutParam()));
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223 |
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224 | ComPtr<IHostNetworkInterface> hif;
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225 | CHECK_ERROR(host, FindHostNetworkInterfaceByName(Bstr(pIfName).mutableRaw(), hif.asOutParam()));
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226 | if (FAILED(rc))
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227 | return errorArgument("Could not find interface '%s'", pIfName);
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228 |
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229 | CHECK_ERROR(hif, COMGETTER(NetworkName) (NetName.asOutParam()));
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230 | if (FAILED(rc))
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231 | return errorArgument("Could not get network name for the interface '%s'", pIfName);
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232 | }
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233 | else
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234 | {
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235 | NetName = Bstr(pNetName);
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236 | }
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237 |
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238 | ComPtr<IDHCPServer> svr;
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239 | rc = a->virtualBox->FindDHCPServerByNetworkName(NetName.mutableRaw(), svr.asOutParam());
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240 | if(enmCode == OP_ADD)
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241 | {
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242 | if (SUCCEEDED(rc))
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243 | return errorArgument("DHCP server already exists");
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244 |
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245 | CHECK_ERROR(a->virtualBox, CreateDHCPServer(NetName.mutableRaw(), svr.asOutParam()));
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246 | if (FAILED(rc))
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247 | return errorArgument("Failed to create the DHCP server");
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248 | }
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249 | else if (FAILED(rc))
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250 | {
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251 | return errorArgument("DHCP server does not exist");
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252 | }
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253 |
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254 | if(enmCode != OP_REMOVE)
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255 | {
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256 | if (pIp || pNetmask || pLowerIp || pUpperIp)
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257 | {
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258 | CHECK_ERROR(svr, SetConfiguration (Bstr(pIp).mutableRaw(), Bstr(pNetmask).mutableRaw(), Bstr(pLowerIp).mutableRaw(), Bstr(pUpperIp).mutableRaw()));
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259 | if(FAILED(rc))
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260 | return errorArgument("Failed to set configuration");
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261 | }
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262 |
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263 | if(enable >= 0)
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264 | {
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265 | CHECK_ERROR(svr, COMSETTER(Enabled) ((BOOL)enable));
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266 | }
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267 | }
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268 | else
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269 | {
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270 | CHECK_ERROR(a->virtualBox, RemoveDHCPServer(svr));
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271 | if(FAILED(rc))
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272 | return errorArgument("Failed to remove server");
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273 | }
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274 |
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275 | return 0;
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276 | }
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277 |
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278 |
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279 | int handleDHCPServer(HandlerArg *a)
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280 | {
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281 | if (a->argc < 1)
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282 | return errorSyntax(USAGE_DHCPSERVER, "Not enough parameters");
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283 |
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284 | int result;
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285 | int cProcessed;
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286 | if (strcmp(a->argv[0], "modify") == 0)
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287 | result = handleOp(a, OP_MODIFY, 1, &cProcessed);
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288 | else if (strcmp(a->argv[0], "add") == 0)
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289 | result = handleOp(a, OP_ADD, 1, &cProcessed);
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290 | else if (strcmp(a->argv[0], "remove") == 0)
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291 | result = handleOp(a, OP_REMOVE, 1, &cProcessed);
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292 | else
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293 | result = errorSyntax(USAGE_DHCPSERVER, "Invalid parameter '%s'", Utf8Str(a->argv[0]).c_str());
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294 |
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295 | return result;
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296 | }
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297 |
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298 | #endif /* !VBOX_ONLY_DOCS */
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