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Re: pppd changes permission to /dev/ttyS1 (my modem)

On Mon, 04 Sep 2000, David Wright wrote:

> Quoting Mario Olimpio de Menezes (mario@curiango.ipen.br):
> > On Mon, 4 Sep 2000, Piotr Krukowiecki wrote:
> > > 
> > > pppd removes g+w from /dev/ttyS1 after it is started. So next time I have
> > > to be root to use my modem (and to connect to internet). How to make pppd
> > > stop removing it ? 
> > 
> > 
> > better: add users that need to use modem to dialout group; 
> > # adduser user dialout
> Wrong. That would allow all those users to snoop on each other's
> ppp connections, since they get read-access to the modem port.

I'm the only user - it's my home computer so I don't care.

> The correct group is dip.

Wrong again ;)
At least with wvdial. With pon/poff it's all ok. i don't have to
be in group dialout nor have g+w permission on /dev/ttyS1. If
/dev/ttyS1 is g+w while starting pppd, pppd removes it and puts
back on exit.
But if i use wvdial, /dev/ttyS1 has to be group writable:

SeLeR:/home/piotr# l /dev/ttyS1
crw-r-----    1 root     dialout    4,  65 wrz  5 22:41 /dev/ttyS1
piotr@SeLeR:~/download/5$ wvdial
--> WvDial: Internet dialer version 1.41
--> Cannot open /dev/ttyS1: Permission denied

If it has g+w, wvdial is working ok. It connects to my IP and then
starts pppd, and pppd removes +w. But I think it's not ending pppd
properly. This is from syslog:

pppd started by pon and ended by poff:
Sep  5 23:00:24 SeLeR pppd[938]: Terminating on signal 15.
Sep  5 23:00:24 SeLeR pppd[938]: sent [LCP TermReq id=0x2 "User request"]
Sep  5 23:00:25 SeLeR pppd[938]: Script /etc/ppp/ip-up finished (pid 940),
stat$Sep  5 23:00:25 SeLeR pppd[938]: Script /etc/ppp/ip-down started (pid
Sep  5 23:00:26 SeLeR pppd[938]: Script /etc/ppp/ip-down finished (pid
970), st$Sep  5 23:00:27 SeLeR pppd[938]: sent [LCP TermReq id=0x3 "User
Sep  5 23:00:30 SeLeR pppd[938]: sent [LCP TermReq id=0x4 "User request"]
Sep  5 23:00:33 SeLeR pppd[938]: sent [LCP TermReq id=0x5 "User request"]
Sep  5 23:00:36 SeLeR pppd[938]: sent [LCP TermReq id=0x6 "User request"]
Sep  5 23:00:39 SeLeR pppd[938]: Hangup (SIGHUP)
Sep  5 23:00:39 SeLeR pppd[938]: Modem hangup
Sep  5 23:00:39 SeLeR pppd[938]: Connection terminated.
Sep  5 23:00:39 SeLeR pppd[938]: Connect time 0.1 minutes.
Sep  5 23:00:39 SeLeR pppd[938]: Sent 97 bytes, received 76 bytes.
Sep  5 23:00:40 SeLeR pppd[938]: Exit.

pppd started by wvdial (and ended by ^c as said in README for wvdial):
Sep  5 23:05:41 SeLeR pppd[994]: Terminating on signal 15.

And wvdial shows sth. like this:
Caught signal #2!  Attempting to exit gracefully...
--> Disconnecting at Tue Sep  5 23:05:43 2000

So is it bug in wvdial or in pppd ?
wvdial has bug (#33590) - there is mentioned my problem but the bug 
is in resolved (maybe it's because the main problem in #33590 was 

PS. Don't CC me. I got everything twice.

irc: #Debian.pl

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