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Pull request 1861: 4923-gopacket-dhcp vol.1

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Merge in DNS/adguard-home from 4923-gopacket-dhcp to master

Updates #4923.

Squashed commit of the following:

commit edf36ce8b1873272c3daebe8cc8f8132793aac44
Merge: a17513d3e 123ca8738
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jun 22 14:14:39 2023 +0300

    Merge branch 'master' into 4923-gopacket-dhcp

commit a17513d3e0a9e596d56444dfa46478eee15631de
Merge: f04727c29 994906fbd
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 21 17:49:09 2023 +0300

    Merge branch 'master' into 4923-gopacket-dhcp

commit f04727c29eaf22f9eb53f3aa33d42d00e177b224
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Jun 20 15:42:31 2023 +0300

    home: revert clients container

commit c58284ac6b5b2274da5eed2e853847d757709e5b
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Jun 19 21:10:36 2023 +0300

    all: imp code, names, docs

commit 4c4613c939e1325d11655822d9dbc3f05a6d203c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Jun 13 18:51:12 2023 +0300

    all: imp code

commit 0b4a6e0dd561d9b7bb78dea21dcc947bcd0bd583
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 7 18:40:15 2023 +0300

    all: imp api

commit 0425edea03d6ca0859657df683bef6ec45bfc399
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Jun 5 15:57:23 2023 +0300

    dhcpsvc: introduce package

commit 5628ebe6cccf91e2c48778966730bcbbe9e1d9f2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jun 1 17:49:12 2023 +0300

    WIP
This commit is contained in:
Eugene Burkov
2023-06-22 14:18:43 +03:00
parent 123ca87388
commit f40ef76c79
10 changed files with 324 additions and 104 deletions
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86
internal/dhcpsvc/config.go Normal file
View File

@@ -0,0 +1,86 @@
package dhcpsvc
import (
"net/netip"
"time"
"github.com/google/gopacket/layers"
)
// Config is the configuration for the DHCP service.
type Config struct {
// Interfaces stores configurations of DHCP server specific for the network
// interface identified by its name.
Interfaces map[string]*InterfaceConfig
// LocalDomainName is the top-level domain name to use for resolving DHCP
// clients' hostnames.
LocalDomainName string
// ICMPTimeout is the timeout for checking another DHCP server's presence.
ICMPTimeout time.Duration
// Enabled is the state of the service, whether it is enabled or not.
Enabled bool
}
// InterfaceConfig is the configuration of a single DHCP interface.
type InterfaceConfig struct {
// IPv4 is the configuration of DHCP protocol for IPv4.
IPv4 *IPv4Config
// IPv6 is the configuration of DHCP protocol for IPv6.
IPv6 *IPv6Config
}
// IPv4Config is the interface-specific configuration for DHCPv4.
type IPv4Config struct {
// GatewayIP is the IPv4 address of the network's gateway. It is used as
// the default gateway for DHCP clients and also used in calculating the
// network-specific broadcast address.
GatewayIP netip.Addr
// SubnetMask is the IPv4 subnet mask of the network. It should be a valid
// IPv4 subnet mask (i.e. all 1s followed by all 0s).
SubnetMask netip.Addr
// RangeStart is the first address in the range to assign to DHCP clients.
RangeStart netip.Addr
// RangeEnd is the last address in the range to assign to DHCP clients.
RangeEnd netip.Addr
// Options is the list of DHCP options to send to DHCP clients.
Options layers.DHCPOptions
// LeaseDuration is the TTL of a DHCP lease.
LeaseDuration time.Duration
// Enabled is the state of the DHCPv4 service, whether it is enabled or not
// on the specific interface.
Enabled bool
}
// IPv6Config is the interface-specific configuration for DHCPv6.
type IPv6Config struct {
// RangeStart is the first address in the range to assign to DHCP clients.
RangeStart netip.Addr
// Options is the list of DHCP options to send to DHCP clients.
Options layers.DHCPOptions
// LeaseDuration is the TTL of a DHCP lease.
LeaseDuration time.Duration
// RASlaacOnly defines whether the DHCP clients should only use SLAAC for
// address assignment.
RASLAACOnly bool
// RAAllowSlaac defines whether the DHCP clients may use SLAAC for address
// assignment.
RAAllowSLAAC bool
// Enabled is the state of the DHCPv6 service, whether it is enabled or not
// on the specific interface.
Enabled bool
}