Re: [net-next PATCH v4 0/3] net: reserve ports for applications usingfixed port

[Cong Wang]

Eric W. Biederman wrote:
> Cong Wang <amwang@xxxxxxxxxx> writes:
>
> > Octavian Purdila wrote:
> > > On Tuesday 16 February 2010 22:08:13 you wrote:
> > > > > Something like bellow?
> > > > >
> > > > > # set bits 8080 and 1666
> > > > > $echo 8080 1666-1666 > /proc
> > > > >
> > > > > #reset bit 1666
> > > > > $echo 8080 > /proc
> > > > >
> > > > > #reset whole bitmap
> > > > > $echo > /proc
> > > > Yes. So something like that.
> > > >
> > > > I think I would use commas instead of spaces as that is more traditional.
> >
> > Why this is better than the current version?
> >
> > For the single port case, currently we use:
> >
> > echo +8080 > /xxxx #set
> > echo -8080 > /xxxx #clear
> >
> > Now we will use:
> >
> > echo 8080 > /xxxx #set
> > echo 8080 > /xxxx #clear
>
> No.
>
> > I don't think the latter is better...
> >
> > For the multi-port case, yes, we should accept 'echo 8080,10000 >/xxxx'.
>
> What I was envisioning was:
>
> echo 8080 > /xxx # set the bitmap to 8080
> echo 8080,10000 > /xxx # add 10000 to the bitmap
> echo 8080 > /xxxx # remove 10000 from the bitmap.
>
> That is when you set it you enter the entire set every time, treating
> the entire set as a single value.

Oh, I see, this is ok.

But if we could support multi-port, that will be better, something like:

echo '8080,10000-11000' > /xxx #add port 8080 and port range 10000-11000

so that I don't have to construct a long string for all ports within
10000 and 11000.

Thanks.

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