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The implementation is based on https://github.com/containers/crun/blob/0.10.2/src/libcrun/ebpf.c Although ebpf.c is originally licensed under LGPL-3.0-or-later, the author Giuseppe Scrivano agreed to relicense the file in Apache License 2.0: https://github.com/opencontainers/runc/issues/2144#issuecomment-543116397 See libcontainer/cgroups/ebpf/devicefilter/devicefilter_test.go for tested configurations. Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
25 lines
454 B
Go
25 lines
454 B
Go
package internal
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import (
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"encoding/binary"
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"unsafe"
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)
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// NativeEndian is set to either binary.BigEndian or binary.LittleEndian,
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// depending on the host's endianness.
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var NativeEndian binary.ByteOrder
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func init() {
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if isBigEndian() {
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NativeEndian = binary.BigEndian
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} else {
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NativeEndian = binary.LittleEndian
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}
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}
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func isBigEndian() (ret bool) {
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i := int(0x1)
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bs := (*[int(unsafe.Sizeof(i))]byte)(unsafe.Pointer(&i))
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return bs[0] == 0
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}
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