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sys/linux: test BOOTP protocol #5546

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dvyukov opened this issue Nov 27, 2024 · 0 comments
Open

sys/linux: test BOOTP protocol #5546

dvyukov opened this issue Nov 27, 2024 · 0 comments
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enhancement os:linux

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@dvyukov
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dvyukov commented Nov 27, 2024

It looks like most Linux machines accept remote UDP traffic on port 68:

$ netstat -lp
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
...
udp        0      0 0.0.0.0:bootpc          0.0.0.0:*                           -

These packets are parsed by the kernel, and are quite complex:
https://elixir.bootlin.com/linux/v6.12.1/source/net/ipv4/ipconfig.c#L989

#533
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