1 | /* $Id: NetIfList-linux.cpp 16251 2009-01-27 09:13:47Z vboxsync $ */
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2 | /** @file
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3 | * Main - NetIfList, Linux implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2008 Sun Microsystems, Inc.
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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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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19 | * additional information or have any questions.
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20 | */
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21 |
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22 |
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23 |
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24 | /*******************************************************************************
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25 | * Header Files *
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26 | *******************************************************************************/
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27 | #define LOG_GROUP LOG_GROUP_MAIN
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28 |
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29 | #include <iprt/err.h>
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30 | #include <list>
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31 | #include <sys/ioctl.h>
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32 | #include <net/if.h>
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33 | #include <net/if_arp.h>
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34 | #include <netinet/in.h>
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35 | #include <stdio.h>
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36 | #include <unistd.h>
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37 | #include <iprt/asm.h>
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38 |
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39 | #include "HostNetworkInterfaceImpl.h"
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40 | #include "netif.h"
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41 | #include "Logging.h"
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42 |
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43 | static int getInterfaceInfo(int iSocket, const char *pszName, PNETIFINFO pInfo)
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44 | {
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45 | memset(pInfo, 0, sizeof(*pInfo));
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46 | struct ifreq Req;
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47 | memset(&Req, 0, sizeof(Req));
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48 | strncpy(Req.ifr_name, pszName, sizeof(Req.ifr_name) - 1);
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49 | if (ioctl(iSocket, SIOCGIFHWADDR, &Req) >= 0)
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50 | {
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51 | switch (Req.ifr_hwaddr.sa_family)
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52 | {
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53 | case ARPHRD_ETHER:
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54 | pInfo->enmType = NETIF_T_ETHERNET;
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55 | break;
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56 | default:
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57 | pInfo->enmType = NETIF_T_UNKNOWN;
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58 | break;
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59 | }
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60 | /* Generate UUID from name and MAC address. */
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61 | RTUUID uuid;
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62 | RTUuidClear(&uuid);
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63 | memcpy(&uuid, Req.ifr_name, RT_MIN(sizeof(Req.ifr_name), sizeof(uuid)));
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64 | uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80;
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65 | uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000;
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66 | memcpy(uuid.Gen.au8Node, &Req.ifr_hwaddr.sa_data, sizeof(uuid.Gen.au8Node));
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67 | pInfo->Uuid = uuid;
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68 |
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69 | memcpy(&pInfo->MACAddress, Req.ifr_hwaddr.sa_data, sizeof(pInfo->MACAddress));
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70 |
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71 | if (ioctl(iSocket, SIOCGIFADDR, &Req) >= 0)
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72 | memcpy(pInfo->IPAddress.au8,
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73 | &((struct sockaddr_in *)&Req.ifr_addr)->sin_addr.s_addr,
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74 | sizeof(pInfo->IPAddress.au8));
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75 |
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76 | if (ioctl(iSocket, SIOCGIFNETMASK, &Req) >= 0)
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77 | memcpy(pInfo->IPNetMask.au8,
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78 | &((struct sockaddr_in *)&Req.ifr_addr)->sin_addr.s_addr,
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79 | sizeof(pInfo->IPNetMask.au8));
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80 |
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81 | if (ioctl(iSocket, SIOCGIFFLAGS, &Req) >= 0)
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82 | pInfo->enmStatus = Req.ifr_flags & IFF_UP ? NETIF_S_UP : NETIF_S_DOWN;
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83 |
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84 | FILE *fp = fopen("/proc/net/if_inet6", "r");
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85 | if (fp)
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86 | {
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87 | RTNETADDRIPV6 IPv6Address;
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88 | unsigned uIndex, uLength, uScope, uTmp;
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89 | char szName[30];
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90 | for (;;)
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91 | {
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92 | memset(szName, 0, sizeof(szName));
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93 | int n = fscanf(fp,
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94 | "%08x%08x%08x%08x"
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95 | " %02x %02x %02x %02x %20s\n",
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96 | &IPv6Address.au32[0], &IPv6Address.au32[1],
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97 | &IPv6Address.au32[2], &IPv6Address.au32[3],
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98 | &uIndex, &uLength, &uScope, &uTmp, szName);
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99 | if (n == EOF)
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100 | break;
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101 | if (n != 9 || uLength > 128)
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102 | {
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103 | Log(("getInterfaceInfo: Error while reading /proc/net/if_inet6, n=%d uLength=%u\n",
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104 | n, uLength));
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105 | break;
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106 | }
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107 | if (!strcmp(Req.ifr_name, szName))
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108 | {
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109 | pInfo->IPv6Address.au32[0] = htonl(IPv6Address.au32[0]);
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110 | pInfo->IPv6Address.au32[1] = htonl(IPv6Address.au32[1]);
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111 | pInfo->IPv6Address.au32[2] = htonl(IPv6Address.au32[2]);
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112 | pInfo->IPv6Address.au32[3] = htonl(IPv6Address.au32[3]);
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113 | ASMBitSetRange(&pInfo->IPv6NetMask, 0, uLength);
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114 | }
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115 | }
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116 | fclose(fp);
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117 | }
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118 | }
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119 | return VINF_SUCCESS;
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120 | }
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121 |
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122 | int NetIfList(std::list <ComObjPtr <HostNetworkInterface> > &list)
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123 | {
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124 | int rc = VINF_SUCCESS;
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125 | int sock = socket(AF_INET, SOCK_DGRAM, 0);
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126 | if (sock >= 0)
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127 | {
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128 | FILE *fp = fopen("/proc/net/dev", "r");
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129 | if (fp)
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130 | {
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131 | char buf[256];
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132 | while (fgets(buf, sizeof(buf), fp))
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133 | {
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134 | char *pszEndOfName = strchr(buf, ':');
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135 | if (!pszEndOfName)
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136 | continue;
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137 | *pszEndOfName = 0;
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138 | int iFirstNonWS = strspn(buf, " ");
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139 | char *pszName = buf+iFirstNonWS;
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140 | NETIFINFO Info;
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141 | rc = getInterfaceInfo(sock, pszName, &Info);
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142 | if (RT_FAILURE(rc))
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143 | break;
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144 | if (Info.enmType == NETIF_T_ETHERNET)
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145 | {
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146 | ComObjPtr<HostNetworkInterface> IfObj;
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147 | IfObj.createObject();
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148 | if (SUCCEEDED(IfObj->init(Bstr(pszName), &Info)))
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149 | list.push_back(IfObj);
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150 | }
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151 |
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152 | }
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153 | fclose(fp);
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154 | }
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155 | close(sock);
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156 | }
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157 |
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158 | return rc;
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159 | }
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160 |
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161 |
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