37 lines
853 B
Go
37 lines
853 B
Go
//go:build darwin
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package quic
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import (
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"encoding/binary"
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"net/netip"
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"syscall"
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"golang.org/x/sys/unix"
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)
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const (
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msgTypeIPTOS = unix.IP_RECVTOS
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ipv4PKTINFO = unix.IP_RECVPKTINFO
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)
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const ecnIPv4DataLen = 4
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// ReadBatch only returns a single packet on OSX,
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// see https://godoc.org/golang.org/x/net/ipv4#PacketConn.ReadBatch.
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const batchSize = 1
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func parseIPv4PktInfo(body []byte) (ip netip.Addr, ifIndex uint32, ok bool) {
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// struct in_pktinfo {
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// unsigned int ipi_ifindex; /* Interface index */
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// struct in_addr ipi_spec_dst; /* Local address */
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// struct in_addr ipi_addr; /* Header Destination address */
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// };
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if len(body) != 12 {
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return netip.Addr{}, 0, false
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}
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return netip.AddrFrom4(*(*[4]byte)(body[8:12])), binary.LittleEndian.Uint32(body), true
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}
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func isGSOSupported(syscall.RawConn) bool { return false }
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