mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-14 05:30:41 +03:00
Merge 6227919bc2
into 74f7269ef6
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commit
18d38779fd
@ -9710,36 +9710,40 @@ void VirtualDhcpServer(VH *v, PKT *p)
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}
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else
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{
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// There is no IP address that can be provided
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DHCP_OPTION_LIST ret;
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LIST *o;
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Zero(&ret, sizeof(ret));
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ret.Opcode = DHCP_NACK;
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ret.ServerAddress = v->HostIP;
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StrCpy(ret.DomainName, sizeof(ret.DomainName), v->DhcpDomain);
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ret.SubnetMask = v->DhcpMask;
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// Build the DHCP option
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o = BuildDhcpOption(&ret);
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if (o != NULL)
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// Reply of DHCP_REQUEST must be either DHCP_ACK or DHCP_NAK.
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if (opt->Opcode == DHCP_REQUEST)
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{
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BUF *b = BuildDhcpOptionsBuf(o);
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if (b != NULL)
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{
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UINT dest_ip = p->L3.IPv4Header->SrcIP;
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if (dest_ip == 0)
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{
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dest_ip = 0xffffffff;
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}
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// Transmission
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VirtualDhcpSend(v, tran_id, dest_ip, Endian16(p->L4.UDPHeader->SrcPort),
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ip, dhcp->ClientMacAddress, b, dhcp->HardwareType, dhcp->HardwareAddressSize);
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// There is no IP address that can be provided
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DHCP_OPTION_LIST ret;
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LIST *o;
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Zero(&ret, sizeof(ret));
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// Release the memory
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FreeBuf(b);
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ret.Opcode = DHCP_NACK;
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ret.ServerAddress = v->HostIP;
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StrCpy(ret.DomainName, sizeof(ret.DomainName), v->DhcpDomain);
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ret.SubnetMask = v->DhcpMask;
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// Build the DHCP option
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o = BuildDhcpOption(&ret);
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if (o != NULL)
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{
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BUF *b = BuildDhcpOptionsBuf(o);
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if (b != NULL)
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{
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UINT dest_ip = p->L3.IPv4Header->SrcIP;
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if (dest_ip == 0)
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{
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dest_ip = 0xffffffff;
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}
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// Transmission
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VirtualDhcpSend(v, tran_id, dest_ip, Endian16(p->L4.UDPHeader->SrcPort),
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ip, dhcp->ClientMacAddress, b, dhcp->HardwareType, dhcp->HardwareAddressSize);
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// Release the memory
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FreeBuf(b);
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}
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FreeDhcpOptions(o);
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}
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FreeDhcpOptions(o);
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}
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}
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}
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