AdGuardHome/internal/dhcpsvc/config.go

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package dhcpsvc
import (
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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"fmt"
"time"
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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"github.com/AdguardTeam/golibs/netutil"
"golang.org/x/exp/maps"
"golang.org/x/exp/slices"
)
// 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
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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// Validate returns an error in conf if any.
func (conf *Config) Validate() (err error) {
switch {
case conf == nil:
return errNilConfig
case !conf.Enabled:
return nil
case conf.ICMPTimeout < 0:
return fmt.Errorf("icmp timeout %s must be non-negative", conf.ICMPTimeout)
}
err = netutil.ValidateDomainName(conf.LocalDomainName)
if err != nil {
// Don't wrap the error since it's informative enough as is.
return err
}
if len(conf.Interfaces) == 0 {
return errNoInterfaces
}
ifaces := maps.Keys(conf.Interfaces)
slices.Sort(ifaces)
for _, iface := range ifaces {
if err = conf.Interfaces[iface].validate(); err != nil {
return fmt.Errorf("interface %q: %w", iface, err)
}
}
return nil
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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// mustBeErr returns an error that indicates that valName must be as must
// describes.
func mustBeErr(valName, must string, val fmt.Stringer) (err error) {
return fmt.Errorf("%s %s must %s", valName, val, must)
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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// validate returns an error in ic, if any.
func (ic *InterfaceConfig) validate() (err error) {
if ic == nil {
return errNilConfig
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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if err = ic.IPv4.validate(); err != nil {
return fmt.Errorf("ipv4: %w", err)
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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if err = ic.IPv6.validate(); err != nil {
return fmt.Errorf("ipv6: %w", err)
}
Pull request 2014: 4923 gopacket dhcp vol.3 Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.3 to master Updates #4923. Squashed commit of the following: commit 1a09c436e5666a515084cd5e76cfccd67991ae5e Merge: 95bcf0720 c3f141a0a Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 19:38:57 2023 +0300 Merge branch 'master' into 4923-gopacket-dhcp-vol.3 commit 95bcf07206434fd451632e819926871ba8c14f08 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 13:19:42 2023 +0300 dhcpsvc: fix interface to match legacy version commit 5da513ce177319f19698c5a8e1d10affaaf5e85c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 28 12:32:21 2023 +0300 dhcpsvc: make it build on 32bit commit 37a935514b1cebdc817cdcd5ec3562baeafbc42d Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:39:35 2023 +0300 dhcpd: fix v6 as well commit 03b5454b04c4fdb3fe928d661562883dc3e09d81 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 27 19:34:17 2023 +0300 dhcpsvc: imp code, docs commit 91a0e451f78fba64578cc541f7ba66579c31d388 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:25:58 2023 +0300 dhcpsvc: imp filing commit 57c91e1194caa00a69e62b6655b1b4e38b69b89f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Sep 22 15:23:02 2023 +0300 dhcpsvc: imp code commit d86be56efbfc121c9fe2c5ecef992b4523e04d57 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Sep 14 12:24:39 2023 +0300 dhcpsvc: imp code, docs commit c9ef29057e9e378779d1a7938ad13b6eebda8f50 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Wed Sep 13 17:53:55 2023 +0300 dhcpsvc: add constructor, validations, tests commit f2533ed64e4ef439603b9cdf9596f8b0c4a87cf1 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Tue Sep 12 23:05:42 2023 +0500 WIP
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return nil
}