Usage of sosend() and its context
Julian Kornberger
jk at kornberger.name
Mon Jun 13 21:08:38 UTC 2016
Hi,
I am building a kernel module for fastd [1] and have the problem, that
on one of three machines the sosend() call seems to block. I use
sosend() [2] in a tunneling function that is set by
udp_set_kernel_tunneling().
Since I don't know which thread to pass to sosend() I just use
curthread. Is it possible that I should not use sosend() in this context
and instead build the IP packet manually and pass it to ip_output()? Any
other hints?
[1] https://fastd.readthedocs.io/
[2]
https://github.com/digineo/fastd/blob/97fd40b9992778a3bf11756f41aa7c2615bba2f3/kmod/fastd.c#L664
Regards,
Julian
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