[Buildroot] [PATCH 2/3] skeleton: optionally wait for network interfaces to appear

[Yann E. MORIN <yann.morin.1998@free.fr>]

J?r?me, All,

On 2015-10-28 21:21 +0100, J?r?me Pouiller spake thusly:
> On Wednesday 28 October 2015 18:46:53 Yann E. MORIN wrote:
> > On 2015-10-28 16:59 +0100, J?r?me Pouiller spake thusly:
> [...]
> > Please drop the empty lines.
> There were empty lines in original patch ;-).

OK, I see. ;-)

Still, please drop them next time, please.

[--SNIP--]
> >   - I looked at man 5 interfaces, and there is no mention of
> > wait-delay,
> 
> I have found documentation related to if-*.d scripts in section called 
> "IFACE OPTIONS" of interfaces(5) of my debian.
> 
> >   - I don't see how 'wait-delay' translates to 'wait_iface'
> 
> From interfaces(5):
> 
>   "Additionally, all options given in an interface definition stanza are 
> exported to the environment in upper case  with  "IF_"  prepended  and  
> with hyphens converted to underscores and non-alphanumeric characters 
> discarded."

OK, thanks for the explanations. So there is no relation between the
'stanza' name and the script name, right?

Also, I read this in man 5 interfaces;

    When ifupdown is being called with the --all option, before doing
    anything to interfaces, if [sic] calls all the hook scripts (pre-up
    or down) with IFACE set to "--all", LOGICAL set to the current value
    of --allow parameter (or "auto" if it's  not set), ADDRFAM="meta"
    and METHOD="none". After all the interfaces have been brought up or
    taken down, the appropriate scripts (up or post-down) are executed.

Since S40network calls 'ifup -a' and you added a pre-up script, I guess
it should filter out the '--all' interface and exit early in that case.

Regards,
Yann E. MORIN.

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