Messages in this thread | | | From | (Miquel van Smoorenburg) | Subject | Re: setuids() like setgroups() ? | Date | 16 Apr 1999 18:21:40 +0200 |
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In article <cistron.m10YBDR-0007TvC@the-village.bc.nu>, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: >> However, this is very non-standard and the cances of this getting >> implemented are very low, I guess. The reason I am asking this is that >> I am considering hacking Apache and the kernel for UID swtching - >> wondering if it should be a quick&dirty local hack, or something reasonably >> clean so I can try to get it integrated into Linux and Apache. > >How do you solve pid reuse ?
PID reuse? The task struct would just contain a struct switchuid * with all the valid uid/gid pairs. Probably inherited on fork, not on exec.
>> Aha, that would be SCM_SETCREDENTIALS ? I'm curious about this. It >> seems to be the easiest (and most probable) solution for now. > >Yes. Exactly - it then means that a client can for example pass a request >to a server along with the right for the server to assume its identity. And >vice versa the client can ask the server "I want to become fred = auth is .." >and have the server return "no" or "yes - auth sent"
Does any existing OS already implement this so I can read the manpages or the source code, or would this be a Linux-specific extension. And what would the proper name actually be - SCM_SETCREDENTIALS ? SCM_PASSCREDENTIALS ?
Yes I've seached using Altavista, Hotbot and Dejanews but couldn't find anything on the subject
Mike. -- Indifference will certainly be the downfall of mankind, but who cares?
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