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Checking other DHCP servers fails on FreeBSD #3417

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EugeneOne1 opened this issue Aug 4, 2021 · 0 comments
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Checking other DHCP servers fails on FreeBSD #3417

EugeneOne1 opened this issue Aug 4, 2021 · 0 comments
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external libs Issues that require changes in external libraries.

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In #3289 we've made it possible to enable DHCP server on FreeBSD. However, "Check for DHCP server" button still fails with an error:

receiving packet: invalid argument

A cursory investigation revealed that the error occurs in the tryConn4 function. The error itself is returned from ReadFrom method of the net.PacketConn which has the type of *nclient4.BroadcastRawUDPConn, so, here are some possible reasons to inspect:

  • nclient4.NewRawUDPConn configures the connection for FreeBSD sockets incorrectly;

  • nclient4.BroadcastRawUDPConn's ReadFrom implementation is not valid for FreeBSD.
@EugeneOne1 EugeneOne1 added the external libs Issues that require changes in external libraries. label Aug 4, 2021
@EugeneOne1 EugeneOne1 self-assigned this Aug 4, 2021
@EugeneOne1 EugeneOne1 mentioned this issue Aug 4, 2021
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heyxkhoa pushed a commit to heyxkhoa/AdGuardHome that referenced this issue Mar 20, 2023
@EugeneOne1 @heyxkhoa
Pull request: 3225 bsd dhcp
14fda03 
Merge in DNS/adguard-home from 3225-bsd-dhcp to master

Closes AdguardTeam#3225.
Closes AdguardTeam#3417.

Squashed commit of the following:

commit e7ea691
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Aug 12 17:02:02 2021 +0300

    all: imp code, docs

commit 5b598fc
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Aug 12 16:28:12 2021 +0300

    all: mv logic, imp code, docs, log changes

commit e3e1577
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Aug 12 14:15:10 2021 +0300

    dhcpd: imp checkother

commit 3cc8b05
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Wed Aug 11 13:20:18 2021 +0300

    all: imp bsd support
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