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>
34 lines
1.2 KiB
Go
34 lines
1.2 KiB
Go
//go:build !linux
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// +build !linux
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package packet
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import (
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"fmt"
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"net"
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"runtime"
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"syscall"
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"time"
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"golang.org/x/net/bpf"
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)
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// errUnimplemented is returned by all functions on non-Linux platforms.
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var errUnimplemented = fmt.Errorf("packet: not implemented on %s", runtime.GOOS)
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func listen(_ *net.Interface, _ Type, _ int, _ *Config) (*Conn, error) { return nil, errUnimplemented }
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func (*Conn) readFrom(_ []byte) (int, net.Addr, error) { return 0, nil, errUnimplemented }
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func (*Conn) writeTo(_ []byte, _ net.Addr) (int, error) { return 0, errUnimplemented }
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func (*Conn) setPromiscuous(_ bool) error { return errUnimplemented }
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func (*Conn) stats() (*Stats, error) { return nil, errUnimplemented }
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type conn struct{}
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func (*conn) Close() error { return errUnimplemented }
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func (*conn) SetDeadline(_ time.Time) error { return errUnimplemented }
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func (*conn) SetReadDeadline(_ time.Time) error { return errUnimplemented }
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func (*conn) SetWriteDeadline(_ time.Time) error { return errUnimplemented }
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func (*conn) SetBPF(_ []bpf.RawInstruction) error { return errUnimplemented }
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func (*conn) SyscallConn() (syscall.RawConn, error) { return nil, errUnimplemented }
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