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    SubjectRe: [PATCH] Remove broken netfilter binary sysctls from bridging code
    On Tue, 25 Sep 2007 06:07:24 +0200
    Patrick McHardy <> wrote:

    > Stephen Hemminger wrote:
    > > On Mon, 24 Sep 2007 18:55:38 +0200
    > > Patrick McHardy <> wrote:
    > >
    > >>Eric W. Biederman wrote:
    > >>
    > >>>A really good fix would be to remove the binary side and then to
    > >>>modify brnf_sysctl_call_tables to allocate a temporary ctl_table
    > >>>and integer on the stack and only set ctl->data after we have
    > >>>normalized the written value. But since in practice nothing cares
    > >>>about the race a better fix probably isn't worth it.
    > >>
    > >>
    > >>I seem to be missing something, the entire brnf_sysctl_call_tables
    > >>thing looks purely cosmetic to me, wouldn't it be better to simply
    > >>remove it?
    > >
    > >
    > > I agree, removing seems like a better option. But probably need to
    > > go through a 3-6mo warning period, since sysctl's are technically
    > > an API.
    > I meant removing brnf_sysctl_call_tables function, not the sysctls
    > themselves, all it does is change values != 0 to 1. Or did you
    > actually mean that something in userspace might depend on reading
    > back the value 1 after writing a value != 0?

    I was going farther, because don't really see the value of having
    a sysctl for this. It seems better to just not load filters if
    they aren't going to be used. Having another enable/disable hook
    just adds needless complexity.
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      Last update: 2007-09-25 18:15    [W:0.030 / U:2.116 seconds]
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