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Merge in DNS/adguard-home from 3443-dhcp-broadcast-vol.2 to master Closes #3443. Squashed commit of the following: commit a85af89cb43f2489126fe3c12366fc034e89f59d Merge:72eb3a88a4e07827Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 30 18:08:19 2021 +0300 Merge branch 'master' into 3443-dhcp-broadcast-vol.2 commit 72eb3a8853540b06ee1096decf50e836b539fe45 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 30 18:03:19 2021 +0300 dhcpd: imp code readability commit 2d1fbc40d04a4125855d6be9f02e09d15430150d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 30 14:16:59 2021 +0300 dhcpd: imp tests commit 889fad3084ad2b81edfc12100e2ce29d323227ba Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 29 20:09:25 2021 +0300 dhcpd: imp code, docs commit 1fd6b2346ff66e033bceaa169aed751be5822ca8 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 23 16:08:18 2021 +0300 dhcpd: unicast to mac address
22 lines
689 B
Go
22 lines
689 B
Go
//go:build freebsd || openbsd
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// +build freebsd openbsd
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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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// Despite the fact that server4.NewIPv4UDPConn explicitly sets socket
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// options to allow broadcasting, it also binds the connection to a
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// specific interface. On FreeBSD and OpenBSD net.UDPConn.WriteTo
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// causes errors while writing to the addresses that belong to another
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// interface. So, use the broadcast address specific for the interface
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// bound.
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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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