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Also check foor bzImage support in the ProxyDHCP stage. #51

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Virtualbox inexplicably ships with an iPXE image that knows
how to speak HTTP, but cannot handle bzImage files. This is a
quick and dirty fix for that specific issue, while I work on
the more permanent fix of always chainloading into a known
good iPXE.
This commit is contained in:
David Anderson 2017-12-24 19:28:41 -08:00
parent c813cd6b8e
commit 81fbed5acf
1 changed files with 9 additions and 4 deletions
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13
pixiecore/dhcp.go
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@ -121,6 +121,7 @@ func (s *Server) validateDHCP(pkt *dhcp4.Packet) (mach Machine, isIpxe bool, fwt
}
// iPXE options
supportsHTTP, supportsBzImage := false, false
if len(pkt.Options[175]) > 0 {
bs := pkt.Options[175]
for len(bs) > 0 {
@ -129,14 +130,18 @@ func (s *Server) validateDHCP(pkt *dhcp4.Packet) (mach Machine, isIpxe bool, fwt
}
switch bs[0] {
case 19:
// This iPXE build supports HTTP, so is appropriate
// for going straight into the OS kernel, no need to
// chainload our own.
isIpxe = true
// This iPXE build supports HTTP.
supportsHTTP = true
case 24:
// This iPXE build supports bzImage.
supportsBzImage = true
}
bs = bs[2+int(bs[1]):]
}
}
// This firmware is an appropriate iPXE if it can speak HTTP and
// bzImage. If not, we'll chainload our own internal iPXE.
isIpxe = supportsHTTP && supportsBzImage
mach.MAC = pkt.HardwareAddr
mach.Arch = fwToArch[fwtype]