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Pull request 2152: 4923 gopacket DHCP vol.7

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Updates #4923.

Squashed commit of the following:

commit 0f90eb3596fcbca0d87cb4eb857d45aea26f3854
Merge: 38b3165b6 bd99e3e09
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Feb 19 20:11:38 2024 +0300

    Merge branch 'master' into 4923-gopacket-dhcp-vol.7

commit 38b3165b696c9a3f69484d8e4c2c847340ed9363
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Feb 19 14:52:01 2024 +0300

    dhcpsvc: imp docs

commit 0a078920a20de9fb2d864c90d2311800c6f3bc3f
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Feb 19 14:48:19 2024 +0300

    dhcpsvc: imp code

commit 30691f0d989c48b2f0dff8079952615dbfbdaea1
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Feb 15 19:57:41 2024 +0300

    dhcpsvc: imp code, dry

commit 20f5ef80fb2d1cad869883da3684a01e5b8b3315
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Feb 15 15:57:09 2024 +0300

    dhcpsvc: finish leases methods
This commit is contained in:
Eugene Burkov
2024-02-20 14:52:38 +03:00
parent bd99e3e09d
commit 6fd0a624ca
6 changed files with 639 additions and 83 deletions
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26
internal/dhcpsvc/interface.go
View File

@@ -38,3 +38,29 @@ func (iface *netInterface) insertLease(l *Lease) (err error) {
return nil
}
// updateLease replaces an existing lease within iface with the given one. It
// returns an error if there is no lease with such hardware address.
func (iface *netInterface) updateLease(l *Lease) (prev *Lease, err error) {
i, found := slices.BinarySearchFunc(iface.leases, l, compareLeaseMAC)
if !found {
return nil, fmt.Errorf("no lease for mac %s", l.HWAddr)
}
prev, iface.leases[i] = iface.leases[i], l
return prev, nil
}
// removeLease removes an existing lease from iface. It returns an error if
// there is no lease equal to l.
func (iface *netInterface) removeLease(l *Lease) (err error) {
i, found := slices.BinarySearchFunc(iface.leases, l, compareLeaseMAC)
if !found {
return fmt.Errorf("no lease for mac %s", l.HWAddr)
}
iface.leases = slices.Delete(iface.leases, i, i+1)
return nil
}