| 1 |
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| 2 |
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| 3 | /*******************************************************************************
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| 4 | * Header Files *
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| 5 | *******************************************************************************/
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| 6 | #include <iprt/initterm.h>
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| 7 | #include <iprt/net.h>
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| 8 | #include <iprt/err.h>
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| 9 | #include <iprt/time.h>
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| 10 | #include <iprt/stream.h>
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| 11 | #include <iprt/getopt.h>
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| 12 |
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| 13 | #ifdef VBOX_WITH_HARDENING
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| 14 | # include <VBox/sup.h>
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| 15 | #endif
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| 16 | #include <VBox/version.h>
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| 17 |
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| 18 | #include <vector>
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| 19 | #include <string>
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| 20 |
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| 21 |
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| 22 | /*******************************************************************************
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| 23 | * Structures and Typedefs *
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| 24 | *******************************************************************************/
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| 25 |
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| 26 | /**
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| 27 | * DHCP configuration item.
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| 28 | *
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| 29 | * This is all public data because I'm too lazy to do it propertly right now.
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| 30 | */
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| 31 | class VBoxNetDhcpCfg
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| 32 | {
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| 33 | public:
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| 34 | /** The etheret addresses this matches config applies to.
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| 35 | * An empty vector means 'ANY'. */
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| 36 | std::vector<RTMAC> m_MacAddresses;
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| 37 | /** The upper address in the range. */
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| 38 | RTNETADDRIPV4 m_UpperAddr;
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| 39 | /** The lower address in the range. */
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| 40 | RTNETADDRIPV4 m_LowerAddr;
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| 41 |
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| 42 | /** Option 1: The net mask. */
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| 43 | RTNETADDRIPV4 m_SubnetMask;
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| 44 | /* * Option 2: The time offset. */
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| 45 | /** Option 3: Routers for the subnet. */
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| 46 | std::vector<RTNETADDRIPV4> m_Routers;
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| 47 | /* * Option 4: Time server. */
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| 48 | /* * Option 5: Name server. */
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| 49 | /** Option 6: Domain Name Server (DNS) */
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| 50 | std::vector<RTNETADDRIPV4> m_DNSes;
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| 51 | /* * Option 7: Log server. */
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| 52 | /* * Option 8: Cookie server. */
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| 53 | /* * Option 9: LPR server. */
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| 54 | /* * Option 10: Impress server. */
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| 55 | /* * Option 11: Resource location server. */
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| 56 | /* * Option 12: Host name. */
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| 57 | //std::string<char> m_HostName;
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| 58 | /* * Option 13: Boot file size option. */
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| 59 | /* * Option 14: Merit dump file. */
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| 60 | /** Option 15: Domain name. */
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| 61 | std::string m_DomainName;
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| 62 | /* * Option 16: Swap server. */
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| 63 | /* * Option 17: Root path. */
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| 64 | /* * Option 18: Extension path. */
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| 65 | /* * Option 19: IP forwarding enable/disable. */
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| 66 | /* * Option 20: Non-local routing enable/disable. */
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| 67 | /* * Option 21: Policy filter. */
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| 68 | /* * Option 22: Maximum datagram reassembly size (MRS). */
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| 69 | /* * Option 23: Default IP time-to-live. */
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| 70 | /* * Option 24: Path MTU aging timeout. */
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| 71 | /* * Option 25: Path MTU plateau table. */
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| 72 | /* * Option 26: Interface MTU. */
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| 73 | /* * Option 27: All subnets are local. */
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| 74 | /* * Option 28: Broadcast address. */
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| 75 | /* * Option 29: Perform maximum discovery. */
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| 76 | /* * Option 30: Mask supplier. */
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| 77 | /* * Option 31: Perform route discovery. */
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| 78 | /* * Option 32: Router solicitation address. */
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| 79 | /* * Option 33: Static route. */
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| 80 | /* * Option 34: Trailer encapsulation. */
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| 81 | /* * Option 35: ARP cache timeout. */
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| 82 | /* * Option 36: Ethernet encapsulation. */
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| 83 | /* * Option 37: TCP Default TTL. */
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| 84 | /* * Option 38: TCP Keepalive Interval. */
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| 85 | /* * Option 39: TCP Keepalive Garbage. */
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| 86 | /* * Option 40: Network Information Service (NIS) Domain. */
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| 87 | /* * Option 41: Network Information Servers. */
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| 88 | /* * Option 42: Network Time Protocol Servers. */
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| 89 | /* * Option 43: Vendor Specific Information. */
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| 90 | /* * Option 44: NetBIOS over TCP/IP Name Server (NBNS). */
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| 91 | /* * Option 45: NetBIOS over TCP/IP Datagram distribution Server (NBDD). */
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| 92 | /* * Option 46: NetBIOS over TCP/IP Node Type. */
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| 93 | /* * Option 47: NetBIOS over TCP/IP Scope. */
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| 94 | /* * Option 48: X Window System Font Server. */
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| 95 | /* * Option 49: X Window System Display Manager. */
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| 96 |
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| 97 | /** Option 51: IP Address Lease Time. */
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| 98 | uint32_t m_cSecLease;
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| 99 |
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| 100 | /* * Option 64: Network Information Service+ Domain. */
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| 101 | /* * Option 65: Network Information Service+ Servers. */
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| 102 | /** Option 66: TFTP server name. */
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| 103 | std::string m_TftpServer;
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| 104 | /** Option 67: Bootfile name. */
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| 105 | std::string m_BootfileName;
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| 106 |
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| 107 | /* * Option 68: Mobile IP Home Agent. */
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| 108 | /* * Option 69: Simple Mail Transport Protocol (SMPT) Server. */
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| 109 | /* * Option 70: Post Office Protocol (POP3) Server. */
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| 110 | /* * Option 71: Network News Transport Protocol (NNTP) Server. */
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| 111 | /* * Option 72: Default World Wide Web (WWW) Server. */
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| 112 | /* * Option 73: Default Finger Server. */
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| 113 | /* * Option 74: Default Internet Relay Chat (IRC) Server. */
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| 114 | /* * Option 75: StreetTalk Server. */
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| 115 |
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| 116 | /* * Option 119: Domain Search. */
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| 117 |
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| 118 |
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| 119 | VBoxNetDhcpCfg()
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| 120 | {
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| 121 | m_UpperAddr.u = UINT32_MAX;
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| 122 | m_LowerAddr.u = UINT32_MAX;
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| 123 | m_SubnetMask.u = UINT32_MAX;
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| 124 | m_cSecLease = 60*60; /* 1 hour */
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| 125 | }
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| 126 |
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| 127 | /** Validates the configuration.
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| 128 | * @returns 0 on success, exit code + error message to stderr on failure. */
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| 129 | int validate(void)
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| 130 | {
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| 131 | if ( m_UpperAddr.u == UINT32_MAX
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| 132 | || m_LowerAddr.u == UINT32_MAX
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| 133 | || m_SubnetMask.u == UINT32_MAX)
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| 134 | {
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| 135 | RTStrmPrintf(g_pStdErr, "VBoxNetDHCP: Config is missing:");
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| 136 | if (m_UpperAddr.u == UINT32_MAX)
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| 137 | RTStrmPrintf(g_pStdErr, " --upper-ip");
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| 138 | if (m_LowerAddr.u == UINT32_MAX)
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| 139 | RTStrmPrintf(g_pStdErr, " --lower-ip");
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| 140 | if (m_SubnetMask.u == UINT32_MAX)
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| 141 | RTStrmPrintf(g_pStdErr, " --netmask");
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| 142 | return 2;
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| 143 | }
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| 144 | return 0;
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| 145 | }
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| 146 |
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| 147 | };
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| 148 |
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| 149 | /**
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| 150 | * DHCP lease.
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| 151 | */
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| 152 | class VBoxNetDhcpLease
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| 153 | {
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| 154 | public:
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| 155 | /** The client MAC address. */
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| 156 | RTMAC m_MacAddress;
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| 157 | /** The lease expiration time. */
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| 158 | RTTIMESPEC m_ExpireTime;
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| 159 | };
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| 160 |
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| 161 | /**
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| 162 | * DHCP server instance.
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| 163 | */
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| 164 | class VBoxNetDhcp
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| 165 | {
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| 166 | public:
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| 167 | VBoxNetDhcp();
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| 168 | virtual ~VBoxNetDhcp();
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| 169 |
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| 170 | int parseArgs(int argc, char **argv);
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| 171 | int tryGoOnline(void);
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| 172 | int run(void);
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| 173 |
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| 174 | protected:
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| 175 | int addConfig(VBoxNetDhcpCfg *pCfg);
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| 176 |
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| 177 | protected:
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| 178 | /** @name The server configuration data members.
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| 179 | * @{ */
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| 180 | std::string m_Name;
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| 181 | std::string m_Network;
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| 182 | RTMAC m_MacAddress;
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| 183 | RTNETADDRIPV4 m_IpAddress;
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| 184 | int32_t m_cVerbosity;
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| 185 | /** @} */
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| 186 |
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| 187 | /** The current configs. */
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| 188 | std::vector<VBoxNetDhcpCfg> m_Cfgs;
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| 189 |
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| 190 | /** The current leases. */
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| 191 | std::vector<VBoxNetDhcpLease> m_Leases;
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| 192 | };
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| 193 |
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| 194 |
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| 195 | /*******************************************************************************
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| 196 | * Global Variables *
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| 197 | *******************************************************************************/
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| 198 | /** Pointer to the DHCP server. */
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| 199 | static VBoxNetDhcp *g_pDhcp;
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| 200 |
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| 201 |
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| 202 |
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| 203 | /**
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| 204 | * Construct a DHCP server with a default configuration.
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| 205 | */
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| 206 | VBoxNetDhcp::VBoxNetDhcp()
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| 207 | {
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| 208 | m_Name = "VBoxNetDhcp";
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| 209 | m_Network = "VBoxNetDhcp";
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| 210 | m_MacAddress.au8[0] = 0x08;
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| 211 | m_MacAddress.au8[1] = 0x00;
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| 212 | m_MacAddress.au8[2] = 0x27;
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| 213 | m_MacAddress.au8[3] = 0x40;
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| 214 | m_MacAddress.au8[4] = 0x41;
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| 215 | m_MacAddress.au8[5] = 0x42;
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| 216 | m_IpAddress.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8( 10, 0, 2, 5)));
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| 217 |
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| 218 | #if 1 /* while hacking. */
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| 219 | VBoxNetDhcpCfg DefCfg;
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| 220 | DefCfg.m_LowerAddr.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8( 10, 0, 2,100)));
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| 221 | DefCfg.m_UpperAddr.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8( 10, 0, 2,250)));
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| 222 | DefCfg.m_SubnetMask.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8(255,255,255, 0)));
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| 223 | RTNETADDRIPV4 Addr;
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| 224 | Addr.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8( 10, 0, 2, 1)));
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| 225 | DefCfg.m_Routers.push_back(Addr);
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| 226 | Addr.u = RT_H2N_U32_C(RT_BSWAP_U32_C(RT_MAKE_U32_FROM_U8( 10, 0, 2, 2)));
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| 227 | DefCfg.m_DNSes.push_back(Addr);
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| 228 | DefCfg.m_DomainName = "vboxnetdhcp.org";
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| 229 | DefCfg.m_cSecLease = 60*60; /* 1 hour */
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| 230 | DefCfg.m_TftpServer = "10.0.2.3"; //??
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| 231 | #endif
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| 232 | }
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| 233 |
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| 234 |
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| 235 | /**
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| 236 | * Destruct a DHCP server.
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| 237 | */
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| 238 | VBoxNetDhcp::~VBoxNetDhcp()
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| 239 | {
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| 240 | /*
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| 241 | * Close the interface connection.
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| 242 | */
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| 243 | }
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| 244 |
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| 245 |
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| 246 | /**
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| 247 | * Adds a config to the tail.
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| 248 | *
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| 249 | * @returns See VBoxNetDHCP::validate().
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| 250 | * @param pCfg The config too add.
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| 251 | * This object will be consumed by this call!
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| 252 | */
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| 253 | int VBoxNetDhcp::addConfig(VBoxNetDhcpCfg *pCfg)
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| 254 | {
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| 255 | int rc = 0;
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| 256 | if (pCfg)
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| 257 | {
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| 258 | rc = pCfg->validate();
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| 259 | if (!rc)
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| 260 | m_Cfgs.push_back(*pCfg);
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| 261 | delete pCfg;
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| 262 | }
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| 263 | return rc;
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| 264 | }
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| 265 |
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| 266 |
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| 267 | /**
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| 268 | * Parse the arguments.
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| 269 | *
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| 270 | * @returns 0 on success, fully bitched exit code on failure.
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| 271 | *
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| 272 | * @param argc Argument count.
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| 273 | * @param argv Argument vector.
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| 274 | */
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| 275 | int VBoxNetDhcp::parseArgs(int argc, char **argv)
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| 276 | {
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| 277 | static const RTGETOPTDEF s_aOptionDefs[] =
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| 278 | {
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| 279 | { "--name", 'N', RTGETOPT_REQ_STRING },
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| 280 | { "--network", 'n', RTGETOPT_REQ_STRING },
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| 281 | /// @todo { "--mac-address", 'a', RTGETOPT_REQ_MACADDR },
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| 282 | { "--ip-address", 'i', RTGETOPT_REQ_IPV4ADDR },
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| 283 | { "--verbose", 'v', RTGETOPT_REQ_NOTHING },
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| 284 |
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| 285 | { "--begin-config", 'b', RTGETOPT_REQ_NOTHING },
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| 286 | { "--gateway", 'g', RTGETOPT_REQ_IPV4ADDR },
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| 287 | { "--lower-ip", 'l', RTGETOPT_REQ_IPV4ADDR },
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| 288 | { "--upper-ip", 'u', RTGETOPT_REQ_IPV4ADDR },
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| 289 | { "--netmask", 'm', RTGETOPT_REQ_IPV4ADDR },
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| 290 |
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| 291 | { "--help", 'h', RTGETOPT_REQ_NOTHING },
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| 292 | { "--version ", 'V', RTGETOPT_REQ_NOTHING },
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| 293 | };
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| 294 |
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| 295 | RTGETOPTSTATE State;
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| 296 | int rc = RTGetOptInit(&State, argc, argv, &s_aOptionDefs[0], RT_ELEMENTS(s_aOptionDefs), 0, 0);
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| 297 | AssertReturn(rc, 49);
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| 298 |
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| 299 | VBoxNetDhcpCfg *pCurCfg = NULL;
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| 300 | for (;;)
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| 301 | {
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| 302 | RTGETOPTUNION Val;
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| 303 | rc = RTGetOpt(&State, &Val);
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| 304 | if (!rc)
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| 305 | break;
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| 306 | switch (rc)
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| 307 | {
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| 308 | case 'N':
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| 309 | m_Name = Val.psz;
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| 310 | break;
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| 311 | case 'n':
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| 312 | m_Network = Val.psz;
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| 313 | break;
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| 314 | case 'a':
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| 315 | AssertFailed();
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| 316 | // m_MacAddress = Val.Mac;
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| 317 | break;
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| 318 | case 'i':
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| 319 | m_IpAddress = Val.IPv4Addr;
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| 320 | break;
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| 321 |
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| 322 | case 'v':
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| 323 | m_cVerbosity++;
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| 324 | break;
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| 325 |
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| 326 | /* Begin config. */
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| 327 | case 'b':
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| 328 | rc = addConfig(pCurCfg);
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| 329 | if (rc)
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| 330 | break;
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| 331 | pCurCfg = NULL;
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| 332 | /* fall thru */
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| 333 |
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| 334 | /* config specific ones. */
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| 335 | case 'g':
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| 336 | case 'l':
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| 337 | case 'u':
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| 338 | case 'm':
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| 339 | if (!pCurCfg)
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| 340 | {
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| 341 | pCurCfg = new VBoxNetDhcpCfg();
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| 342 | if (!pCurCfg)
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| 343 | {
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| 344 | RTStrmPrintf(g_pStdErr, "VBoxNetDHCP: new VBoxDhcpCfg failed\n");
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| 345 | rc = 1;
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| 346 | break;
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | switch (rc)
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| 351 | {
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| 352 | case 'g':
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| 353 | pCurCfg->m_Routers.push_back(Val.IPv4Addr);
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| 354 | break;
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| 355 |
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| 356 | case 'l':
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| 357 | pCurCfg->m_LowerAddr = Val.IPv4Addr;
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| 358 | break;
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| 359 |
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| 360 | case 'u':
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| 361 | pCurCfg->m_UpperAddr = Val.IPv4Addr;
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| 362 | break;
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| 363 |
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| 364 | case 'm':
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| 365 | pCurCfg->m_SubnetMask = Val.IPv4Addr;
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| 366 | break;
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| 367 |
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| 368 | case 0: /* ignore */ break;
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| 369 | default:
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| 370 | AssertMsgFailed(("%d", rc));
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| 371 | rc = 1;
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| 372 | break;
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| 373 | }
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| 374 | break;
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| 375 |
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| 376 | case 'V':
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| 377 | RTPrintf("%sr%d\n", VBOX_VERSION_STRING, VBOX_SVN_REV);
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| 378 | rc = 0;
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| 379 | break;
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| 380 |
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| 381 | case 'h':
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| 382 | RTPrintf("VBoxNetDHCP Version %s\n"
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| 383 | "(C) 2009 Sun Microsystems, Inc.\n"
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| 384 | "All rights reserved\n"
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| 385 | "\n"
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| 386 | "Usage:\n"
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| 387 | " TODO\n",
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| 388 | VBOX_VERSION_STRING);
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| 389 | rc = 1;
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| 390 | break;
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| 391 |
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| 392 | default:
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| 393 | break;
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| 394 | }
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| 395 | }
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| 396 |
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| 397 | return rc;
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| 398 | }
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| 399 |
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| 400 |
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| 401 | /**
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| 402 | * Tries to connect to the internal network.
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| 403 | *
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| 404 | * @returns 0 on success, exit code + error message to stderr on failure.
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| 405 | */
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| 406 | int VBoxNetDhcp::tryGoOnline(void)
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| 407 | {
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| 408 | return 0;
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| 409 | }
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| 410 |
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| 411 |
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| 412 | /**
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| 413 | * Runs the DHCP server.
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| 414 | *
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| 415 | * @returns 0 on success, exit code + error message to stderr on failure.
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| 416 | */
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| 417 | int VBoxNetDhcp::run(void)
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| 418 | {
|
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| 419 | return 0;
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| 420 | }
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| 421 |
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| 422 |
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| 423 |
|
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| 424 | /**
|
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| 425 | * Entry point.
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|---|
| 426 | */
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| 427 | extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
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| 428 | {
|
|---|
| 429 | /*
|
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| 430 | * Instantiate the DHCP server and hand it the options.
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| 431 | */
|
|---|
| 432 | VBoxNetDhcp *pDhcp = new VBoxNetDhcp();
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| 433 | if (!pDhcp)
|
|---|
| 434 | {
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|---|
| 435 | RTStrmPrintf(g_pStdErr, "VBoxNetDHCP: new VBoxNetDhcp failed!\n");
|
|---|
| 436 | return 1;
|
|---|
| 437 | }
|
|---|
| 438 | int rc = pDhcp->parseArgs(argc - 1, argv + 1);
|
|---|
| 439 | if (rc)
|
|---|
| 440 | return rc;
|
|---|
| 441 |
|
|---|
| 442 | /*
|
|---|
| 443 | * Try connect the server to the network.
|
|---|
| 444 | */
|
|---|
| 445 | rc = pDhcp->tryGoOnline();
|
|---|
| 446 | if (rc)
|
|---|
| 447 | {
|
|---|
| 448 | delete pDhcp;
|
|---|
| 449 | return rc;
|
|---|
| 450 | }
|
|---|
| 451 |
|
|---|
| 452 | /*
|
|---|
| 453 | * Process requests.
|
|---|
| 454 | */
|
|---|
| 455 | g_pDhcp = pDhcp;
|
|---|
| 456 | rc = pDhcp->run();
|
|---|
| 457 | g_pDhcp = NULL;
|
|---|
| 458 | delete pDhcp;
|
|---|
| 459 |
|
|---|
| 460 | return rc;
|
|---|
| 461 | }
|
|---|
| 462 |
|
|---|
| 463 |
|
|---|
| 464 |
|
|---|
| 465 | #ifndef VBOX_WITH_HARDENING
|
|---|
| 466 |
|
|---|
| 467 | int main(int argc, char **argv, char **envp)
|
|---|
| 468 | {
|
|---|
| 469 | int rc = RTR3InitAndSUPLib();
|
|---|
| 470 | if (RT_FAILURE(rc))
|
|---|
| 471 | {
|
|---|
| 472 | RTStrmPrintf(g_pStdErr, "VBoxNetDHCP: RTR3InitAndSupLib failed, rc=%Rrc\n", rc);
|
|---|
| 473 | return 1;
|
|---|
| 474 | }
|
|---|
| 475 |
|
|---|
| 476 | return TrustedMain(argc, argv, envp);
|
|---|
| 477 | }
|
|---|
| 478 |
|
|---|
| 479 | #endif /* !VBOX_WITH_HARDENING */
|
|---|
| 480 |
|
|---|
