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aa872dfe98
Updates #4923.
Squashed commit of the following:
commit 14ae8dc3680eae7d3ecb9e37a44c2e68221c5085
Merge: 280a4dbc7 713901c2a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Wed Jan 31 13:52:52 2024 +0300
Merge branch 'master' into 4923-gopacket-dhcp-vol.6
commit 280a4dbc728ff67c7659f91734a74c87bf0bda43
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Jan 30 20:20:04 2024 +0300
dhcpsvc: imp docs
commit 310ed67b9bf22f88c4414095bfbfc1a29c6db6d5
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Jan 30 18:51:49 2024 +0300
dhcpsvc: generalize
commit e4c2cae73a729be4db244d3042d93fcc9742bb34
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Tue Jan 30 12:37:38 2024 +0300
dhcpsvc: imp code
commit 9a60d3529293ce1f0e8da70da05958f81e1d0092
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Fri Jan 26 16:28:04 2024 +0300
dhcpsvc: imp code
commit 120c0472f3a3df2ebc0495a40936c8f94156db4b
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Thu Jan 25 20:44:09 2024 +0300
dhcpsvc: imp code, names, docs
commit a92f44c75279868d8e07fe7d468278025a245d13
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Wed Jan 24 16:01:35 2024 +0300
dhcpsvc: imp code, docs
commit 18b3f237b7523f649b49563e852c298fe02fa8ae
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Thu Jan 18 15:29:36 2024 +0300
dhcpsvc: add some lease-related methods
88 lines
2 KiB
Go
88 lines
2 KiB
Go
package dhcpsvc
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import (
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"fmt"
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"time"
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"github.com/AdguardTeam/golibs/netutil"
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"golang.org/x/exp/maps"
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"golang.org/x/exp/slices"
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)
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// Config is the configuration for the DHCP service.
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type Config struct {
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// Interfaces stores configurations of DHCP server specific for the network
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// interface identified by its name.
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Interfaces map[string]*InterfaceConfig
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// LocalDomainName is the top-level domain name to use for resolving DHCP
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// clients' hostnames.
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LocalDomainName string
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// TODO(e.burkov): Add DB path.
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// ICMPTimeout is the timeout for checking another DHCP server's presence.
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ICMPTimeout time.Duration
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// Enabled is the state of the service, whether it is enabled or not.
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Enabled bool
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}
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// InterfaceConfig is the configuration of a single DHCP interface.
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type InterfaceConfig struct {
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// IPv4 is the configuration of DHCP protocol for IPv4.
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IPv4 *IPv4Config
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// IPv6 is the configuration of DHCP protocol for IPv6.
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IPv6 *IPv6Config
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}
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// Validate returns an error in conf if any.
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func (conf *Config) Validate() (err error) {
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switch {
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case conf == nil:
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return errNilConfig
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case !conf.Enabled:
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return nil
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case conf.ICMPTimeout < 0:
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return newMustErr("icmp timeout", "be non-negative", conf.ICMPTimeout)
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}
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err = netutil.ValidateDomainName(conf.LocalDomainName)
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if err != nil {
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// Don't wrap the error since it's informative enough as is.
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return err
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}
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if len(conf.Interfaces) == 0 {
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return errNoInterfaces
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}
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ifaces := maps.Keys(conf.Interfaces)
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slices.Sort(ifaces)
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for _, iface := range ifaces {
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if err = conf.Interfaces[iface].validate(); err != nil {
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return fmt.Errorf("interface %q: %w", iface, err)
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}
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}
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return nil
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}
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// validate returns an error in ic, if any.
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func (ic *InterfaceConfig) validate() (err error) {
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if ic == nil {
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return errNilConfig
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}
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if err = ic.IPv4.validate(); err != nil {
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return fmt.Errorf("ipv4: %w", err)
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}
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if err = ic.IPv6.validate(); err != nil {
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return fmt.Errorf("ipv6: %w", err)
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}
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return nil
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}
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