On Saturday 16 August 2003 18:35, Olivier Blin wrote:
> Hi,
>
> I've found some weird things in /etc/ppp/ip-up
>
> 1) what's this trick for PPP_TEMP_ENTRY ?
> # for dynamic DNS support with gnome-ppp and kppp and draknet
> if grep -i '#.*ppp temp entry' /etc/resolv.conf >& /dev/null ; then
> PPP_TEMP_ENTRY=`grep '#.*ppp temp entry' /etc/resolv.conf | \
> tail -1 | sed 's/.*ppp temp entry/# ppp temp entry/' `
> else
> unset PPP_TEMP_ENTRY
> fi
>
> Why use this grep | tail | sed ? The result should always be "# ppp
> temp entry"
>
> 2) kppp now writes temp entries in /etc/resolv.conf after
> /etc/ppp/ip-up is run, gnome-ppp isn't supported anymore, and
> drakconnect uses kppp (it even run it as root ...), so there is no
> need to check for "#.*ppp temp entry" here ...
> "grep -i '#.*ppp temp entry' /etc/resolv.conf" will never match here.
> So PPP_TEMP_ENTRY will never be set.
>
> 3) Since PPP_TEMP_ENTRY is always unset, the script never writes DNS
> in /etc/resolv.conf
> This is a problem when pppd or wvdial are used to establish the
> connection.
>
> if [ -n "$PPP_TEMP_ENTRY" ]; then
> [ -n "$DNS1" ] && \
> echo -e "nameserver $DNS1 $PPP_TEMP_ENTRY" >>/etc/resolv.conf
> [ -n "$DNS2" ] && \
> echo -e "nameserver $DNS2 $PPP_TEMP_ENTRY" >> /etc/resolv.conf
> fi
>
>
> I propose to drop all this "if grep -i '#.*ppp temp entry'
> /etc/resolv.conf" and "if [ -n "$PPP_TEMP_ENTRY" ]" blocks and to
> replace them with :
>
> PPP_TEMP_ENTRY="# ppp temp entry"
> [ -n "$DNS1" ] && \
> echo -e "nameserver $DNS1 $PPP_TEMP_ENTRY" >>/etc/resolv.conf
> [ -n "$DNS2" ] && \
> echo -e "nameserver $DNS2 $PPP_TEMP_ENTRY" >> /etc/resolv.conf
>
>
> Have I missed something ?
> For dialup users, with the current ip-up script, only kppp sets
> dynamic DNS in /etc/resolv.conf (it doesn't use the ip-up to do that)
I would also add something to replace if-up.local
[ -x /etc/ppp/ip-up.local ] && /etc/ppp/ip-up.local "$@"
replaced by
if [ -d /etc/ppp/ifup-ppp.d -a -x /usr/bin/run-parts ];
then
/usr/bin/run-parts --arg "$@" /etc/ppp/ipup.d/
fi
then just drop a script to call /etc/ppp/ipup.local in
/etc/ppp/ipup-ppp.d, for backward compatibility.
the same applis for ipdown.local .
This would also mean we can remove the piece of code to flush sendmail
queue, and put it in a separate script, to be cleaner.
the second problem i see is that each file dropped in
/etc/sysconfig/network-scripts/ifup.d/, are not executed with pppd.
to give a small example ( and the only one i see ), wshaperx does not
work out of the box, on a adsl connection.
it seems that this line :
[ -f /etc/sysconfig/network-scripts/ifcfg-${LOGDEVICE} ] &&
/etc/sysconfig/network-scripts/ifup-post ifcfg-${LOGDEVICE}
never call ifup-post, because $LOGDEVICE is always unset.
at least for adsl and RTC connection. I know that it also handle ppp
connection for Isdn and maybe for tunnel, so this line is maybe for
this kind of connection.
removing this line and dropping a script in /etc/ppp/ipup.d/ could be a
solution.
I think this solution can be more flexible than the current one.
did i forget someting ?
is it possible to replace the script in the current package ?
--
Micha�l Scherer
