Pull request: 4337 Add del option
Merge in DNS/adguard-home from 4337-dhcp-cli-id to master Updates #4337. Squashed commit of the following: commit c393bf7c5964b64f6b4528db0418e54416dd246c Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 26 14:18:48 2022 +0300 dhcpd: ip docs commit bfeef3e881ed04eab6285c1ac62005c7cb57c11f Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 26 13:54:33 2022 +0300 all: finish chlog fmt commit e5fbb7385450825ca81fc7622feb7beb390a8bad Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 26 13:49:10 2022 +0300 dhcpd: imp naming commit cb49eeb536afd8dc1dd2ea9169dd024c7d4a3a25 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Fri Aug 26 12:23:54 2022 +0300 dhcpd: imp docs commit c4ea72a5e7572d40a885125c4f61ef6694e38170 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 25 20:15:15 2022 +0300 dhcpd: imp code, docs commit 36d0e309e7ef0abdcdd94673e87f4d0af67b9cb3 Author: Eugene Burkov <E.Burkov@AdGuard.COM> Date: Thu Aug 25 19:45:24 2022 +0300 dhcpd: add del opt
This commit is contained in:
Eugene Burkov
parent
2410639123
commit
45bcc2c09a
13
CHANGELOG.md
13
CHANGELOG.md
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@ -22,6 +22,11 @@ and this project adheres to
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### Added
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- New `del` DHCP option which removes the corresponding option from server's
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response ([#4337]).
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**NOTE:** This modifier affects all the parameters in the response and not
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only the requested ones.
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- A new HTTP API, `GET /control/blocked_services/services`, that lists all
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available blocked services ([#4535]).
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@ -39,6 +44,7 @@ and this project adheres to
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- Unnecessary logging of non-critical statistics errors ([#4850]).
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[#2993]: https://github.com/AdguardTeam/AdGuardHome/issues/2993
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[#4337]: https://github.com/AdguardTeam/AdGuardHome/issues/4337
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[#4535]: https://github.com/AdguardTeam/AdGuardHome/issues/4535
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[#4745]: https://github.com/AdguardTeam/AdGuardHome/issues/4745
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[#4850]: https://github.com/AdguardTeam/AdGuardHome/issues/4850
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@ -231,9 +237,10 @@ See also the [v0.107.7 GitHub milestone][ms-v0.107.7].
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seconds.
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- Domain-specific private reverse DNS upstream servers are now validated to
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allow only `*.in-addr.arpa` and `*.ip6.arpa` domains pointing to
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locally-served networks ([#3381]). **Note:** If you already have invalid
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entries in your configuration, consider removing them manually, since they
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essentially had no effect.
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locally-served networks ([#3381]).
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**NOTE:** If you already have invalid entries in your configuration, consider
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removing them manually, since they essentially had no effect.
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- Response filtering is now performed using the record types of the answer
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section of messages as opposed to the type of the question ([#4238]).
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- Instead of adding the build time information, the build scripts now use the
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@ -18,17 +18,14 @@ import (
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// The aliases for DHCP option types available for explicit declaration.
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const (
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hexTyp = "hex"
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ipTyp = "ip"
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ipsTyp = "ips"
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textTyp = "text"
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typHex = "hex"
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typIP = "ip"
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typIPs = "ips"
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typText = "text"
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typDel = "del"
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)
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// parseDHCPOptionHex parses a DHCP option as a hex-encoded string. For
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// example:
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//
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// 252 hex 736f636b733a2f2f70726f78792e6578616d706c652e6f7267
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//
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// parseDHCPOptionHex parses a DHCP option as a hex-encoded string.
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func parseDHCPOptionHex(s string) (val dhcpv4.OptionValue, err error) {
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var data []byte
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data, err = hex.DecodeString(s)
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@ -39,10 +36,7 @@ func parseDHCPOptionHex(s string) (val dhcpv4.OptionValue, err error) {
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return dhcpv4.OptionGeneric{Data: data}, nil
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}
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// parseDHCPOptionIP parses a DHCP option as a single IP address. For example:
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//
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// 6 ip 192.168.1.1
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//
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// parseDHCPOptionIP parses a DHCP option as a single IP address.
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func parseDHCPOptionIP(s string) (val dhcpv4.OptionValue, err error) {
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var ip net.IP
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// All DHCPv4 options require IPv4, so don't put the 16-byte version.
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@ -58,10 +52,7 @@ func parseDHCPOptionIP(s string) (val dhcpv4.OptionValue, err error) {
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}
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// parseDHCPOptionIPs parses a DHCP option as a comma-separates list of IP
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// addresses. For example:
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//
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// 6 ips 192.168.1.1,192.168.1.2
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//
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// addresses.
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func parseDHCPOptionIPs(s string) (val dhcpv4.OptionValue, err error) {
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var ips dhcpv4.IPs
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var ip net.IP
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@ -78,23 +69,53 @@ func parseDHCPOptionIPs(s string) (val dhcpv4.OptionValue, err error) {
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}
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// parseDHCPOptionText parses a DHCP option as a simple UTF-8 encoded
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// text. For example:
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//
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// 252 text http://192.168.1.1/wpad.dat
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//
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// text.
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func parseDHCPOptionText(s string) (val dhcpv4.OptionValue) {
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return dhcpv4.OptionGeneric{Data: []byte(s)}
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}
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// parseDHCPOption parses an option. See the documentation of parseDHCPOption*
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// for more info.
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// parseDHCPOptionVal parses a DHCP option value considering typ. For the del
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// option the value string is ignored. The examples of possible value pairs:
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//
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// - hex 736f636b733a2f2f70726f78792e6578616d706c652e6f7267
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// - ip 192.168.1.1
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// - ips 192.168.1.1,192.168.1.2
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// - text http://192.168.1.1/wpad.dat
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// - del
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func parseDHCPOptionVal(typ, valStr string) (val dhcpv4.OptionValue, err error) {
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switch typ {
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case typHex:
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val, err = parseDHCPOptionHex(valStr)
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case typIP:
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val, err = parseDHCPOptionIP(valStr)
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case typIPs:
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val, err = parseDHCPOptionIPs(valStr)
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case typText:
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val = parseDHCPOptionText(valStr)
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case typDel:
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val = dhcpv4.OptionGeneric{Data: nil}
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default:
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err = fmt.Errorf("unknown option type %q", typ)
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}
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return val, err
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}
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// parseDHCPOption parses an option. See the documentation of
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// parseDHCPOptionVal for more info.
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func parseDHCPOption(s string) (opt dhcpv4.Option, err error) {
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defer func() { err = errors.Annotate(err, "invalid option string %q: %w", s) }()
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s = strings.TrimSpace(s)
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parts := strings.SplitN(s, " ", 3)
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if len(parts) < 3 {
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return opt, errors.Error("need at least three fields")
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var valStr string
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if pl := len(parts); pl < 3 {
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if pl < 2 || parts[1] != typDel {
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return opt, errors.Error("bad option format")
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}
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} else {
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valStr = parts[2]
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}
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var code64 uint64
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@ -103,27 +124,16 @@ func parseDHCPOption(s string) (opt dhcpv4.Option, err error) {
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return opt, fmt.Errorf("parsing option code: %w", err)
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}
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var optVal dhcpv4.OptionValue
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switch typ, val := parts[1], parts[2]; typ {
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case hexTyp:
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optVal, err = parseDHCPOptionHex(val)
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case ipTyp:
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optVal, err = parseDHCPOptionIP(val)
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case ipsTyp:
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optVal, err = parseDHCPOptionIPs(val)
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case textTyp:
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optVal = parseDHCPOptionText(val)
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default:
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return opt, fmt.Errorf("unknown option type %q", typ)
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}
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val, err := parseDHCPOptionVal(parts[1], valStr)
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if err != nil {
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// Don't wrap an error since it's informative enough as is and there
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// also the deferred annotation.
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return opt, err
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}
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return dhcpv4.Option{
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Code: dhcpv4.GenericOptionCode(code64),
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Value: optVal,
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Value: val,
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}, nil
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}
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@ -139,40 +149,45 @@ func prepareOptions(conf V4ServerConf) (opts dhcpv4.Options) {
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// See also https://datatracker.ietf.org/doc/html/rfc1122,
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// https://datatracker.ietf.org/doc/html/rfc1123, and
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// https://datatracker.ietf.org/doc/html/rfc2132.
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opts = dhcpv4.Options{
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opts = dhcpv4.OptionsFromList(
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// IP-Layer Per Host
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dhcpv4.OptionNonLocalSourceRouting.Code(): []byte{0},
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dhcpv4.OptGeneric(dhcpv4.OptionNonLocalSourceRouting, []byte{0}),
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// Set the current recommended default time to live for the
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// Internet Protocol which is 64, see
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// https://datatracker.ietf.org/doc/html/rfc1700.
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dhcpv4.OptionDefaultIPTTL.Code(): []byte{64},
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dhcpv4.OptGeneric(dhcpv4.OptionDefaultIPTTL, []byte{0x40}),
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// IP-Layer Per Interface
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dhcpv4.OptionPerformMaskDiscovery.Code(): []byte{0},
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dhcpv4.OptionMaskSupplier.Code(): []byte{0},
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dhcpv4.OptionPerformRouterDiscovery.Code(): []byte{1},
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dhcpv4.OptGeneric(dhcpv4.OptionPerformMaskDiscovery, []byte{0}),
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dhcpv4.OptGeneric(dhcpv4.OptionMaskSupplier, []byte{0}),
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dhcpv4.OptGeneric(dhcpv4.OptionPerformRouterDiscovery, []byte{1}),
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// The all-routers address is preferred wherever possible, see
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// https://datatracker.ietf.org/doc/html/rfc1256#section-5.1.
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dhcpv4.OptionRouterSolicitationAddress.Code(): netutil.IPv4allrouter(),
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dhcpv4.OptionBroadcastAddress.Code(): netutil.IPv4bcast(),
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dhcpv4.Option{
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Code: dhcpv4.OptionRouterSolicitationAddress,
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Value: dhcpv4.IP(netutil.IPv4allrouter()),
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},
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dhcpv4.OptBroadcastAddress(netutil.IPv4bcast()),
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// Link-Layer Per Interface
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dhcpv4.OptionTrailerEncapsulation.Code(): []byte{0},
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dhcpv4.OptionEthernetEncapsulation.Code(): []byte{0},
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dhcpv4.OptGeneric(dhcpv4.OptionTrailerEncapsulation, []byte{0}),
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dhcpv4.OptGeneric(dhcpv4.OptionEthernetEncapsulation, []byte{0}),
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// TCP Per Host
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dhcpv4.OptionTCPKeepaliveInterval.Code(): dhcpv4.Duration(0).ToBytes(),
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dhcpv4.OptionTCPKeepaliveGarbage.Code(): []byte{0},
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dhcpv4.Option{
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Code: dhcpv4.OptionTCPKeepaliveInterval,
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Value: dhcpv4.Duration(0),
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},
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dhcpv4.OptGeneric(dhcpv4.OptionTCPKeepaliveGarbage, []byte{0}),
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// Values From Configuration
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dhcpv4.OptionRouter.Code(): netutil.CloneIP(conf.subnet.IP),
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dhcpv4.OptionSubnetMask.Code(): dhcpv4.IPMask(conf.subnet.Mask).ToBytes(),
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}
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dhcpv4.OptRouter(conf.subnet.IP),
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dhcpv4.OptSubnetMask(conf.subnet.Mask),
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)
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// Set values for explicitly configured options.
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for i, o := range conf.Options {
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@ -8,103 +8,111 @@ import (
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"net"
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"testing"
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"github.com/AdguardTeam/golibs/testutil"
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"github.com/insomniacslk/dhcp/dhcpv4"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestParseOpt(t *testing.T) {
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testCases := []struct {
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name string
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in string
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wantErrMsg string
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wantOpt dhcpv4.Option
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wantErrMsg string
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}{{
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name: "hex_success",
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in: "6 hex c0a80101c0a80102",
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wantErrMsg: "",
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wantOpt: dhcpv4.OptDNS(
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net.IP{0xC0, 0xA8, 0x01, 0x01},
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net.IP{0xC0, 0xA8, 0x01, 0x02},
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wantOpt: dhcpv4.OptGeneric(
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dhcpv4.GenericOptionCode(6),
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[]byte{
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0xC0, 0xA8, 0x01, 0x01,
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0xC0, 0xA8, 0x01, 0x02,
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},
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),
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wantErrMsg: "",
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}, {
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name: "ip_success",
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in: "6 ip 1.2.3.4",
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wantOpt: dhcpv4.Option{
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Code: dhcpv4.GenericOptionCode(6),
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Value: dhcpv4.IP(net.IP{0x01, 0x02, 0x03, 0x04}),
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},
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wantErrMsg: "",
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wantOpt: dhcpv4.OptDNS(
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net.IP{0x01, 0x02, 0x03, 0x04},
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),
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}, {
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name: "ip_fail_v6",
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in: "6 ip ::1234",
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wantErrMsg: "invalid option string \"6 ip ::1234\": bad ipv4 address \"::1234\"",
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wantOpt: dhcpv4.Option{},
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wantErrMsg: "invalid option string \"6 ip ::1234\": bad ipv4 address \"::1234\"",
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}, {
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name: "ips_success",
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in: "6 ips 192.168.1.1,192.168.1.2",
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wantOpt: dhcpv4.Option{
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Code: dhcpv4.GenericOptionCode(6),
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Value: dhcpv4.IPs([]net.IP{
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{0xC0, 0xA8, 0x01, 0x01},
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{0xC0, 0xA8, 0x01, 0x02},
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}),
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},
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wantErrMsg: "",
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wantOpt: dhcpv4.OptDNS(
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net.IP{0xC0, 0xA8, 0x01, 0x01},
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net.IP{0xC0, 0xA8, 0x01, 0x02},
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),
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}, {
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name: "text_success",
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in: "252 text http://192.168.1.1/",
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wantErrMsg: "",
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wantOpt: dhcpv4.OptGeneric(
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dhcpv4.GenericOptionCode(252),
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[]byte("http://192.168.1.1/"),
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),
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wantErrMsg: "",
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}, {
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name: "del_success",
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in: "61 del",
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wantOpt: dhcpv4.Option{
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Code: dhcpv4.GenericOptionCode(dhcpv4.OptionClientIdentifier),
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Value: dhcpv4.OptionGeneric{Data: nil},
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},
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wantErrMsg: "",
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}, {
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name: "bad_parts",
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in: "6 ip",
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wantErrMsg: `invalid option string "6 ip": need at least three fields`,
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wantOpt: dhcpv4.Option{},
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wantErrMsg: `invalid option string "6 ip": bad option format`,
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}, {
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name: "bad_code",
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in: "256 ip 1.1.1.1",
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wantOpt: dhcpv4.Option{},
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wantErrMsg: `invalid option string "256 ip 1.1.1.1": parsing option code: ` +
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`strconv.ParseUint: parsing "256": value out of range`,
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wantOpt: dhcpv4.Option{},
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}, {
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name: "bad_type",
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in: "6 bad 1.1.1.1",
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wantErrMsg: `invalid option string "6 bad 1.1.1.1": unknown option type "bad"`,
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wantOpt: dhcpv4.Option{},
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wantErrMsg: `invalid option string "6 bad 1.1.1.1": unknown option type "bad"`,
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}, {
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name: "hex_error",
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in: "6 hex ZZZ",
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wantOpt: dhcpv4.Option{},
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wantErrMsg: `invalid option string "6 hex ZZZ": decoding hex: ` +
|
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`encoding/hex: invalid byte: U+005A 'Z'`,
|
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wantOpt: dhcpv4.Option{},
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}, {
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name: "ip_error",
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in: "6 ip 1.2.3.x",
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wantErrMsg: "invalid option string \"6 ip 1.2.3.x\": bad ipv4 address \"1.2.3.x\"",
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wantOpt: dhcpv4.Option{},
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wantErrMsg: "invalid option string \"6 ip 1.2.3.x\": bad ipv4 address \"1.2.3.x\"",
|
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}, {
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name: "ips_error",
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in: "6 ips 192.168.1.1,192.168.1.x",
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wantOpt: dhcpv4.Option{},
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wantErrMsg: "invalid option string \"6 ips 192.168.1.1,192.168.1.x\": " +
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"parsing ip at index 1: bad ipv4 address \"192.168.1.x\"",
|
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wantOpt: dhcpv4.Option{},
|
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}}
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for _, tc := range testCases {
|
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t.Run(tc.name, func(t *testing.T) {
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opt, err := parseDHCPOption(tc.in)
|
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if tc.wantErrMsg != "" {
|
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require.Error(t, err)
|
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testutil.AssertErrorMsg(t, tc.wantErrMsg, err)
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|
||||
assert.Equal(t, tc.wantErrMsg, err.Error())
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|
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return
|
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}
|
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|
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require.NoError(t, err)
|
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|
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assert.Equal(t, tc.wantOpt.Code.Code(), opt.Code.Code())
|
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assert.Equal(t, tc.wantOpt.Value.ToBytes(), opt.Value.ToBytes())
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// assert.Equal(t, tc.wantOpt.Code.Code(), opt.Code.Code())
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// assert.Equal(t, tc.wantOpt.Value.ToBytes(), opt.Value.ToBytes())
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assert.Equal(t, tc.wantOpt, opt)
|
||||
})
|
||||
}
|
||||
}
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||||
|
|
@ -127,51 +135,80 @@ func TestPrepareOptions(t *testing.T) {
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|||
|
||||
testCases := []struct {
|
||||
name string
|
||||
opts []string
|
||||
checks dhcpv4.Options
|
||||
opts []string
|
||||
}{{
|
||||
name: "all_default",
|
||||
checks: allDefault,
|
||||
opts: nil,
|
||||
}, {
|
||||
name: "configured_ip",
|
||||
opts: []string{
|
||||
fmt.Sprintf("%d ip %s", dhcpv4.OptionBroadcastAddress, oneIP),
|
||||
},
|
||||
checks: dhcpv4.Options{
|
||||
dhcpv4.OptionBroadcastAddress.Code(): oneIP,
|
||||
},
|
||||
opts: []string{
|
||||
fmt.Sprintf("%d ip %s", dhcpv4.OptionBroadcastAddress, oneIP),
|
||||
},
|
||||
}, {
|
||||
name: "configured_ips",
|
||||
opts: []string{
|
||||
fmt.Sprintf("%d ips %s,%s", dhcpv4.OptionDomainNameServer, oneIP, otherIP),
|
||||
},
|
||||
checks: dhcpv4.Options{
|
||||
dhcpv4.OptionDomainNameServer.Code(): append(oneIP, otherIP...),
|
||||
},
|
||||
opts: []string{
|
||||
fmt.Sprintf("%d ips %s,%s", dhcpv4.OptionDomainNameServer, oneIP, otherIP),
|
||||
},
|
||||
}, {
|
||||
name: "configured_bad",
|
||||
checks: allDefault,
|
||||
opts: []string{
|
||||
"20 hex",
|
||||
"23 hex abc",
|
||||
"32 ips 1,2,3,4",
|
||||
"28 256.256.256.256",
|
||||
},
|
||||
checks: allDefault,
|
||||
}, {
|
||||
name: "configured_del",
|
||||
checks: dhcpv4.Options{
|
||||
dhcpv4.OptionBroadcastAddress.Code(): nil,
|
||||
},
|
||||
opts: []string{
|
||||
"28 del",
|
||||
},
|
||||
}, {
|
||||
name: "rewritten_del",
|
||||
checks: dhcpv4.Options{
|
||||
dhcpv4.OptionBroadcastAddress.Code(): []byte{255, 255, 255, 255},
|
||||
},
|
||||
opts: []string{
|
||||
"28 del",
|
||||
"28 ip 255.255.255.255",
|
||||
},
|
||||
}, {
|
||||
name: "configured_and_del",
|
||||
checks: dhcpv4.Options{
|
||||
123: []byte("cba"),
|
||||
},
|
||||
opts: []string{
|
||||
"123 text abc",
|
||||
"123 del",
|
||||
"123 text cba",
|
||||
},
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
if tc.name == "configured_del" {
|
||||
assert.True(t, true)
|
||||
}
|
||||
opts := prepareOptions(V4ServerConf{
|
||||
// Just to avoid nil pointer dereference.
|
||||
subnet: &net.IPNet{},
|
||||
Options: tc.opts,
|
||||
})
|
||||
for c, v := range tc.checks {
|
||||
optVal := opts.Get(dhcpv4.GenericOptionCode(c))
|
||||
require.NotNil(t, optVal)
|
||||
|
||||
assert.Len(t, optVal, len(v))
|
||||
assert.Equal(t, v, optVal)
|
||||
val := opts.Get(dhcpv4.GenericOptionCode(c))
|
||||
assert.Lenf(t, val, len(v), "Code: %v", c)
|
||||
assert.Equal(t, v, val)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -875,28 +875,32 @@ func (s *v4Server) process(req, resp *dhcpv4.DHCPv4) int {
|
|||
resp.YourIPAddr = netutil.CloneIP(l.IP)
|
||||
}
|
||||
|
||||
// Set IP address lease time for all DHCPOFFER messages and DHCPACK
|
||||
// messages replied for DHCPREQUEST.
|
||||
// Set IP address lease time for all DHCPOFFER messages and DHCPACK messages
|
||||
// replied for DHCPREQUEST.
|
||||
//
|
||||
// TODO(e.burkov): Inspect why this is always set to configured value.
|
||||
resp.UpdateOption(dhcpv4.OptIPAddressLeaseTime(s.conf.leaseTime))
|
||||
|
||||
// Delete options explicitly configured to be removed.
|
||||
for code := range resp.Options {
|
||||
if val, ok := s.options[code]; ok && val == nil {
|
||||
delete(resp.Options, code)
|
||||
}
|
||||
}
|
||||
|
||||
// Update values for each explicitly configured parameter requested by
|
||||
// client.
|
||||
//
|
||||
// See https://datatracker.ietf.org/doc/html/rfc2131#section-4.3.1.
|
||||
requested := req.ParameterRequestList()
|
||||
for _, code := range requested {
|
||||
if configured := s.options; configured.Has(code) {
|
||||
resp.UpdateOption(dhcpv4.OptGeneric(code, configured.Get(code)))
|
||||
if val := s.options.Get(code); val != nil {
|
||||
resp.UpdateOption(dhcpv4.Option{
|
||||
Code: code,
|
||||
Value: dhcpv4.OptionGeneric{Data: s.options.Get(code)},
|
||||
})
|
||||
}
|
||||
}
|
||||
// Update the value of Domain Name Server option separately from others if
|
||||
// not assigned yet since its value is set after server's creating.
|
||||
if requested.Has(dhcpv4.OptionDomainNameServer) &&
|
||||
!resp.Options.Has(dhcpv4.OptionDomainNameServer) {
|
||||
resp.UpdateOption(dhcpv4.OptDNS(s.conf.dnsIPAddrs...))
|
||||
}
|
||||
|
||||
return 1
|
||||
}
|
||||
|
|
@ -924,6 +928,7 @@ func (s *v4Server) packetHandler(conn net.PacketConn, peer net.Addr, req *dhcpv4
|
|||
resp, err := dhcpv4.NewReplyFromRequest(req)
|
||||
if err != nil {
|
||||
log.Debug("dhcpv4: dhcpv4.New: %s", err)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
|
|
@ -1020,6 +1025,11 @@ func (s *v4Server) Start() (err error) {
|
|||
// No available IP addresses which may appear later.
|
||||
return nil
|
||||
}
|
||||
// Update the value of Domain Name Server option separately from others if
|
||||
// not assigned yet since its value is available only at server's start.
|
||||
if !s.options.Has(dhcpv4.OptionDomainNameServer) {
|
||||
s.options.Update(dhcpv4.OptDNS(dnsIPAddrs...))
|
||||
}
|
||||
|
||||
s.conf.dnsIPAddrs = dnsIPAddrs
|
||||
|
||||
|
|
|
|||
|
|
@ -345,6 +345,8 @@ func TestV4Server_Process_optionsPriority(t *testing.T) {
|
|||
stringutil.WriteToBuilder(b, ",", ip.String())
|
||||
}
|
||||
conf.Options = []string{b.String()}
|
||||
} else {
|
||||
defer func() { s.options.Update(dhcpv4.OptDNS(defaultIP)) }()
|
||||
}
|
||||
|
||||
ss, err := v4Create(conf)
|
||||
|
|
@ -407,6 +409,7 @@ func TestV4StaticLease_Get(t *testing.T) {
|
|||
require.True(t, ok)
|
||||
|
||||
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
|
||||
s.options.Update(dhcpv4.OptDNS(s.conf.dnsIPAddrs...))
|
||||
|
||||
l := &Lease{
|
||||
Hostname: "static-1.local",
|
||||
|
|
@ -495,6 +498,7 @@ func TestV4DynamicLease_Get(t *testing.T) {
|
|||
require.True(t, ok)
|
||||
|
||||
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
|
||||
s.options.Update(dhcpv4.OptDNS(s.conf.dnsIPAddrs...))
|
||||
|
||||
var req, resp *dhcpv4.DHCPv4
|
||||
mac := net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}
|
||||
|
|
|
|||
Loading…
Reference in New Issue