d61e7e5e1f
The dhcp server is systemd-networkd, and the dhcp plugin can request an ip but can not renew it. The systemd-networkd just ignore the renew request. ``` 2024/09/14 21:46:00 no DHCP packet received within 10s 2024/09/14 21:46:00 retrying in 31.529038 seconds 2024/09/14 21:46:42 no DHCP packet received within 10s 2024/09/14 21:46:42 retrying in 63.150490 seconds 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: no more tries 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: renewal time expired, rebinding 2024/09/14 21:47:45 Link "eth1" down. Attempting to set up 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: lease rebound, expiration is 2024-09-14 22:47:45.309270751 +0800 CST m=+11730.048516519 ``` Follow the https://datatracker.ietf.org/doc/html/rfc2131#section-4.3.6, following options must not be sent in renew - Requested IP Address - Server Identifier Since the upstream code has been inactive for 6 years, we should switch to another dhcpv4 library. The new selected one is https://github.com/insomniacslk/dhcp. Signed-off-by: Songmin Li <lisongmin@protonmail.com>
78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
package iana
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// StatusCode represents a IANA status code for DHCPv6
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//
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// IANA Status Codes for DHCPv6
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// https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5
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type StatusCode uint16
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// IANA status codes
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const (
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// RFC 3315 par. 24..4
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StatusSuccess StatusCode = 0
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StatusUnspecFail StatusCode = 1
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StatusNoAddrsAvail StatusCode = 2
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StatusNoBinding StatusCode = 3
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StatusNotOnLink StatusCode = 4
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StatusUseMulticast StatusCode = 5
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StatusNoPrefixAvail StatusCode = 6
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// RFC 5007
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StatusUnknownQueryType StatusCode = 7
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StatusMalformedQuery StatusCode = 8
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StatusNotConfigured StatusCode = 9
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StatusNotAllowed StatusCode = 10
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// RFC 5460
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StatusQueryTerminated StatusCode = 11
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// RFC 7653
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StatusDataMissing StatusCode = 12
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StatusCatchUpComplete StatusCode = 13
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StatusNotSupported StatusCode = 14
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StatusTLSConnectionRefused StatusCode = 15
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// RFC 8156
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StatusAddressInUse StatusCode = 16
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StatusConfigurationConflict StatusCode = 17
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StatusMissingBindingInformation StatusCode = 18
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StatusOutdatedBindingInformation StatusCode = 19
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StatusServerShuttingDown StatusCode = 20
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StatusDNSUpdateNotSupported StatusCode = 21
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StatusExcessiveTimeSkew StatusCode = 22
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)
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// String returns a mnemonic name for a given status code
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func (s StatusCode) String() string {
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if sc := statusCodeToStringMap[s]; sc != "" {
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return sc
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}
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return "Unknown"
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}
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var statusCodeToStringMap = map[StatusCode]string{
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StatusSuccess: "Success",
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StatusUnspecFail: "UnspecFail",
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StatusNoAddrsAvail: "NoAddrsAvail",
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StatusNoBinding: "NoBinding",
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StatusNotOnLink: "NotOnLink",
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StatusUseMulticast: "UseMulticast",
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StatusNoPrefixAvail: "NoPrefixAvail",
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// RFC 5007
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StatusUnknownQueryType: "UnknownQueryType",
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StatusMalformedQuery: "MalformedQuery",
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StatusNotConfigured: "NotConfigured",
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StatusNotAllowed: "NotAllowed",
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// RFC 5460
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StatusQueryTerminated: "QueryTerminated",
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// RFC 7653
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StatusDataMissing: "DataMissing",
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StatusCatchUpComplete: "CatchUpComplete",
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StatusNotSupported: "NotSupported",
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StatusTLSConnectionRefused: "TLSConnectionRefused",
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// RFC 8156
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StatusAddressInUse: "AddressInUse",
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StatusConfigurationConflict: "ConfigurationConflict",
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StatusMissingBindingInformation: "MissingBindingInformation",
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StatusOutdatedBindingInformation: "OutdatedBindingInformation",
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StatusServerShuttingDown: "ServerShuttingDown",
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StatusDNSUpdateNotSupported: "DNSUpdateNotSupported",
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StatusExcessiveTimeSkew: "ExcessiveTimeSkew",
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}
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