Messages in this thread | | | Date | Mon, 12 Jan 2009 07:51:13 -0800 (PST) | From | Jose Luis Marchetti <> | Subject | Re: How to access a regular file from within a module ? |
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> One big problem with file access in the kernel is that all > the file operations require a process context - they need a > process to stick the file descriptor into, to determine > access permissions, etc. If you just start calling file > operations from inside the kernel you're essentially > stealing whatever process you're being called from's > context for these operations, which is unlikely to be a good > idea. > > Not to mention, that accessing files from inside the kernel > usually means the kernel enforces a policy on file > naming/locations, and putting that sort of policy in the > kernel is usually frowned upon. OK, that is clear now. From all I read, it is possible to access files from within inside the kernel, but it would not be a good practice, thanks for the insights. > > In the case you're describing I'm not sure why you > couldn't just store the keys in encrypted form inside > the user app and have it write them back out when they > change, instead of making the kernel do it.. Yes, that was one of the possible solutions I pointed out, and it might be the one I am going to use, thanks!
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