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b74b92fc27
Merge in DNS/adguard-home from imp-build-tags to master
Squashed commit of the following:
commit c15793e04c08097835692568a598b8a8d15f57f4
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Sep 13 19:25:20 2022 +0300
home: imp build tags
commit 2b9b68e9fe6942422951f50d90c70143a3509401
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Sep 13 19:23:56 2022 +0300
version: imp build tags
commit c0ade3d6ae8885c596fc31312360b25fe992d1e4
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Sep 13 19:20:48 2022 +0300
dhcpd: imp build tags
commit 0ca2a73b7c3b721400a0cc6383cc9e60f4961f22
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Sep 13 19:17:22 2022 +0300
aghos: imp build tags
commit 733a685b24b56153b96d59cb97c174ad322ff841
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Sep 13 19:13:11 2022 +0300
aghnet: imp build tags
30 lines
1,004 B
Go
30 lines
1,004 B
Go
//go:build darwin || linux
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package dhcpd
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import (
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"net"
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)
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// broadcast sends resp to the broadcast address specific for network interface.
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func (c *dhcpConn) broadcast(respData []byte, peer *net.UDPAddr) (n int, err error) {
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// This write to 0xffffffff reverts some behavior changes made in
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// https://github.com/AdguardTeam/AdGuardHome/issues/3289. The DHCP
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// server should broadcast the message to 0xffffffff but it's
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// inconsistent with the actual mental model of DHCP implementation
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// which requires the network interface selection to bind to.
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//
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// See https://github.com/AdguardTeam/AdGuardHome/issues/3480 and
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// https://github.com/AdguardTeam/AdGuardHome/issues/3366.
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//
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// See also https://github.com/AdguardTeam/AdGuardHome/issues/3539.
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if n, err = c.udpConn.WriteTo(respData, peer); err != nil {
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return n, err
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}
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// Broadcast the message one more time using the interface-specific
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// broadcast address.
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peer.IP = c.bcastIP
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return c.udpConn.WriteTo(respData, peer)
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}
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