Using capabilities

Martijn van Oosterhout (kleptog@cupid.suninternet.com)
Tue, 30 Nov 1999 02:10:50 +1100

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I'm doing a fair bit of raw network programming and
I find it very annoying to have to do all the testing
as root. Now, I figure I could give my user
CAP_NET_RAW and CAP_NET_ADMIN but this is tricky.

For starters, any call to set*id() will clear the
bits if you're not root. This can be disabled
but then (i guess) login won't drop all the caps.

Then I figured CAP_SETPCAP to set it afterwards,
but it seems that not even init has this cap set.
How is this going to work?

Any ideas?

Martijn van Oosterhout
Australia

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