Hello
On Friday, May 27, 2011 4:54:00 PM UTC+2, paldan wrote:
>
> Same problem here.
>
> Using adb logcat for main, I read the following log:
>
> E/pppd ( 1017): This system lacks kernel support for PPP. This
> could be because
> E/pppd ( 1017): the PPP kernel module could not be loaded, or
> because PPP was not
> E/pppd ( 1017): included in the kernel configuration. If PPP was
> included as a
> E/pppd ( 1017): module, try `/sbin/modprobe -v ppp'. If that
> fails, check that
> E/pppd ( 1017): ppp.o exists in /lib/modules/`uname -r`/net.
> E/pppd ( 1017): See README.linux file in the ppp distribution for
> more details.
>
> however this is not true, because the kernel has PPP support and I
> succeed in starting pppd from command line.
>
> Me too suspects a permission problem, but I still haven't managed to
> find a solution.
>
So perhaps I was not particularly clear in my previous post. You need a set
of permissions to access the ppp device and at set of capabilities
to be allowed to do things like creating interfaces. The capabilities in
android are also gained by being part of a group. you need to be at least
to be part of net_admin radio vpn and inet
What I did for testing was a hack , I added
<permission name="com.sample.permission.CONNECTIVITY">
<group gid="net_admin"/>
<group gid="radio"/>
<group gid="vpn"/>
<group gid="inet"/>
</permission>
to /etc/permissions and created a permission called
com.sample.permission.CONNECTIVITY and granted that to my sample application
Greetings
I have also another problem via pppd from command line: the interface
> is up and connected but using a ping with numeric address (no dns
> problem) doesn't work: it seems that I cannot receive data from ppp0
> but I can send data because I see my ping packets going to the modem
> (using a sniffer). Another strange thing is that LCP echo packets are
> correctly sent and received, so I suspect again a permission problem.
> I will open a new topic for that.
>
>
> Daniele
>
> On 25 Mag, 22:57, Jeffrey <[email protected]> wrote:
> > Hi all,
> >
> > With exactly the same pppd command, if pppd is invoked from command
> > prompt, data connection works fine. I can browse Internet and I can
> > get ppp logs in DDMS.
> >
> > Here is the command (same as that in init.gprs-pppd called by RIL)
> > C:\Program Files\Android\android-sdk-windows\platform-tools>adb shell
> > # /system/bin/pppd /dev/ttyUSB0 115200 mru 1280 mtu 1280 nodetach
> > debug dump defaultroute usepe pdefault ipcp-accept-local ipcp-accept-
> > remote connect-delay 5000 linkname ppp0
> >
> > However if I invoke pppd in Android RIL (err =
> > property_set("ctl.start", SERVICE_PPPD_GPRS); statement in reference-
> > ril.c), pppd deamon is started (no error returned) but the ppp0 link
> > is not up, and I can not get any ppp log in DDMS. Since there is no
> > log visibility, I am not able to know what is happening.
> >
> > Could anyone please help
> > 1) Any suggestion on how to get ppp logs (if it is invoked by
> > RIL)?
> > 2) Any idea why invoking ppp from RIL give a different result
> > than
> > from the command prompt?
> >
> > Appreciate your help in advance.
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