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5ce0c949f2
If the kernel is too old for timestamping, it should not be fatal. I prefer to not accept SO_TIMESTAMP_OLD as the size of the timestamp is arch-dependent. Fix #1978
50 lines
1.0 KiB
Go
50 lines
1.0 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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package udp
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import (
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"fmt"
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"net"
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"syscall"
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"time"
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"akvorado/common/reporter"
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"golang.org/x/sys/unix"
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)
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type oobMessage struct {
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Drops uint32
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Received time.Time
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}
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// socketOption describes a socket option to be applied.
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type socketOption struct {
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Name string
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Level int
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Option int
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Mandatory bool
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}
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// listenConfig configures a listening socket with the udpSocketOptions.
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var listenConfig = func(r *reporter.Reporter, opts []socketOption) *net.ListenConfig {
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return &net.ListenConfig{
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Control: func(_, _ string, c syscall.RawConn) error {
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var err error
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for _, opt := range opts {
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c.Control(func(fd uintptr) {
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err = unix.SetsockoptInt(int(fd), opt.Level, opt.Option, 1)
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})
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if err != nil {
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if opt.Mandatory {
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return fmt.Errorf("cannot set option %s: %w", opt.Name, err)
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}
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r.Warn().Err(err).Msgf("cannot set option %s", opt.Name)
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}
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}
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return nil
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},
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}
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}
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