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silly opinionated tweak

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This commit is contained in:
JackDoan
2026-07-29 11:54:34 -05:00
parent b39bae57ec
commit 095a421708
2 changed files with 12 additions and 8 deletions
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overlay/tio/virtio/header_linux.go
+10 -6
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@@ -46,15 +46,19 @@ func (h *Hdr) Decode(b []byte) {
h.CsumOffset = binary.NativeEndian.Uint16(b[8:10])
}
func EncodeHeader(b []byte, flags, gsoType uint8, hdrLen, gsoSize, csumStart, csumOffset uint16) {
b[0] = flags
b[1] = gsoType
binary.NativeEndian.PutUint16(b[2:4], hdrLen)
binary.NativeEndian.PutUint16(b[4:6], gsoSize)
binary.NativeEndian.PutUint16(b[6:8], csumStart)
binary.NativeEndian.PutUint16(b[8:10], csumOffset)
}
// Encode is the inverse of Decode: writes the virtio_net_hdr fields into b
// (must be at least Size bytes). Used to emit a TSO superpacket on egress.
func (h *Hdr) Encode(b []byte) {
b[0] = h.Flags
b[1] = h.gsoType
binary.NativeEndian.PutUint16(b[2:4], h.HdrLen)
binary.NativeEndian.PutUint16(b[4:6], h.GSOSize)
binary.NativeEndian.PutUint16(b[6:8], h.CsumStart)
binary.NativeEndian.PutUint16(b[8:10], h.CsumOffset)
EncodeHeader(b, h.Flags, h.gsoType, h.HdrLen, h.GSOSize, h.CsumStart, h.CsumOffset)
}
// GSOType returns gsoType with the ECN-flag masked out