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Read the DHCP server information from OPTs #12

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Dec 27, 2023
Merged

Read the DHCP server information from OPTs #12

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6 changes: 6 additions & 0 deletions stacks/dhcp_client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,12 @@ func (d *DHCPClient) recv(pkt *UDPPacket) (err error) {
if len(opt.Data) == 1 {
msgType = dhcp.MessageType(opt.Data[0])
}
// The DHCP server information does not have to be in the header, but can
// be in the options. Copy into the decoded header for simplicity.
case dhcp.OptServerIdentification:
if len(opt.Data) == 4 {
copy(rcvHdr.SIAddr[:], opt.Data)
}
}
if debugEnabled && !internal.HeapAllocDebugging {
d.stack.debug("DHCP:rx", slog.String("opt", opt.Num.String()), slog.String("data", stringNumList(opt.Data)))
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