Messages in this thread | | | Subject | Re: userspace access to "u8", "u16", etc. types with filter.h | Date | Sat, 23 Jan 1999 17:58:48 +0100 | From | Philip Blundell <> |
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>Indeed. But this brings us to an intersting dilemma. What is a >userspace program to do when it wants to build an LPF and attach it to a >socket? It needs the definitions in <linux/filter.h> to build the >filter.
There are three options:
- clean up the kernel header so it works from user space - get the appropriate definitions included in the libc - include the definitions somewhere else, either in your application or in some new library invented for the purpose.
In most cases the latter is probably best.
>Uggh! Does this not sound like a deficiency in the kernel interface to >you? I really shouldn't have to do either of these. There should be a >"userspace" version of the required data structures shouldn't there?
It's not really the kernel's job to provide the user space API.
p.
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