Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
net.ppp0 cannot find ppp0 under udev-200, but pon works well
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
galaxy001
n00b
n00b


Joined: 15 Jun 2008
Posts: 11

PostPosted: Mon Apr 08, 2013 3:21 pm    Post subject: net.ppp0 cannot find ppp0 under udev-200, but pon works well Reply with quote

Code:

# /etc/init.d/net.ppp0 start
 * Bringing up interface ppp0
 *   ERROR: interface ppp0 does not exist
 *   Ensure that you have loaded the correct kernel module for your hardware
 * ERROR: net.ppp0 failed to start


/etc/conf.d/net
Code:

config_ppp0="ppp"
pppd_ppp0="persist
call myVPN
holdoff 10"


/etc/ppp/chap-secrets
Code:

# added by pptpsetup for myVPN
username myVPN "password" *


/etc/ppp/peers/myVPN
Code:

# written by pptpsetup
pty "pptp the.ip.address --nolaunchpppd"
lock
noauth
nobsdcomp
nodeflate
name username
remotename myVPN
ipparam myVPN


Also, ppp0 not in `/sys/class/net/`


However, `/etc/init.d/net.ppp0` failed while `pon myVPN` works well.

_________________
Galaxy


Last edited by galaxy001 on Mon Apr 08, 2013 5:47 pm; edited 2 times in total
Back to top
View user's profile Send private message
ssuominen
Developer
Developer


Joined: 30 Sep 2005
Posts: 2132
Location: Finland

PostPosted: Mon Apr 08, 2013 4:45 pm    Post subject: Reply with quote

I don't see any indication udev would be related, looks more like kernel issue with the provided information.

Start by looking at dmesg if the device is recognized as a USB mass storage or USB modem, if it's recognized as a USB mass storage then I'd look at possible missing sys-apps/usb_modeswitch
But it could be anything, dmesg will tell you
Back to top
View user's profile Send private message
aCOSwt
Moderator
Moderator


Joined: 19 Oct 2007
Posts: 2537
Location: Hilbert space

PostPosted: Mon Apr 08, 2013 5:04 pm    Post subject: Reply with quote

ssuominen wrote:
looks more like kernel issue with the provided information.

8O
@OP : What happens if you statically build in-kernel (Select <*> and not <M>) everything ppp related, (starting from USB DSL Modem Support and behind) ?
_________________
Back to top
View user's profile Send private message
galaxy001
n00b
n00b


Joined: 15 Jun 2008
Posts: 11

PostPosted: Mon Apr 08, 2013 5:10 pm    Post subject: Reply with quote

Well, the kernel is OK with udev-197
Code:

# zcat /proc/config.gz |grep -i ppp
CONFIG_PPP=y
CONFIG_PPP_BSDCOMP=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPPOE is not set
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m

# uname -a
Linux PG-S0 3.6.11-gentoogalaxy #2 SMP Sun Apr 7 23:03:22 CST 2013 x86_64 Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz GenuineIntel GNU/Linux


dmesg shows nothing
Code:

# dmesg |grep -i ppp
[    0.930330] PPP generic driver version 2.4.2
[    0.933307] PPP BSD Compression module registered
[    0.936262] PPP Deflate Compression module registered


Kernel should be OK.
I just switch back to last kernel that OK with old udev, still cannot see ppp0.
The difference between is only more xHCI items are enabled now.
Code:

# uname  -a
Linux PG-S0 3.5.7-gentoogalaxy #1 SMP Sun Nov 25 10:44:24 CST 2012 x86_64 Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz GenuineIntel GNU/Linux


And, I deleted all udev rules in `/etc/udev/rules.d` as the news file suggested.
This may be the cause.

Also, `/etc/init.d/net.ppp0` failed but `pon myVPN` works well.
_________________
Galaxy
Back to top
View user's profile Send private message
krinn
Advocate
Advocate


Joined: 02 May 2003
Posts: 4339

PostPosted: Mon Apr 08, 2013 7:48 pm    Post subject: Reply with quote

if your modem is pci, look for lspci -k to get its id, i think there some lsusb for usb device.

then look for its presence in /sys
(or you can just look where the symlink points too in the working kernel+udev couple)

for info :
Code:
ls -l
total 0
lrwxrwxrwx 1 root root 0  8 avril 20:24 eth0 -> ../../devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0
lrwxrwxrwx 1 root root 0  8 avril 20:23 lo -> ../../devices/virtual/net/lo


This way you could tell if it's kernel (missing the ../../devices... ref) or udev (missing the symlink ppp0 to ../../devices...)

And i didn't test it yet, but udev may (should have?) rename ppp0, so look for strange name it /sys/class/net (as you only told us you don't see ppp0 there, but didn't told us if you saw something)
Back to top
View user's profile Send private message
galaxy001
n00b
n00b


Joined: 15 Jun 2008
Posts: 11

PostPosted: Tue Apr 09, 2013 10:46 am    Post subject: Reply with quote

I am using VPN over ent.

ppp0 will only show up after running `pon myVPN`

So, how can I make udev to make a virtual ppp0 without running /usr/sbin/pppd from pon ?
Or, how to make net.ppp0 start without /sys/class/net/ppp0 ?

Code:

# ls -l /sys/class/net/
total 0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp1s0 -> ../../devices/pci0000:00/0000:00:1c.7/0000:01:00.0/net/enp1s0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp8s4 -> ../../devices/pci0000:00/0000:00:1e.0/0000:06:03.0/0000:08:04.0/net/enp8s4
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp8s5 -> ../../devices/pci0000:00/0000:00:1e.0/0000:06:03.0/0000:08:05.0/net/enp8s5
lrwxrwxrwx 1 root root 0 Apr  9 11:16 lo -> ../../devices/virtual/net/lo
lrwxrwxrwx 1 root root 0 Apr  9 11:18 ppp0 -> ../../devices/virtual/net/ppp0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 sit0 -> ../../devices/virtual/net/sit0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 tunl0 -> ../../devices/virtual/net/tunl0

_________________
Galaxy
Back to top
View user's profile Send private message
ssuominen
Developer
Developer


Joined: 30 Sep 2005
Posts: 2132
Location: Finland

PostPosted: Tue Apr 09, 2013 11:37 am    Post subject: Reply with quote

galaxy001 wrote:
I am using VPN over ent.

ppp0 will only show up after running `pon myVPN`

So, how can I make udev to make a virtual ppp0 without running /usr/sbin/pppd from pon ?
Or, how to make net.ppp0 start without /sys/class/net/ppp0 ?

Code:

# ls -l /sys/class/net/
total 0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp1s0 -> ../../devices/pci0000:00/0000:00:1c.7/0000:01:00.0/net/enp1s0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp8s4 -> ../../devices/pci0000:00/0000:00:1e.0/0000:06:03.0/0000:08:04.0/net/enp8s4
lrwxrwxrwx 1 root root 0 Apr  9 11:16 enp8s5 -> ../../devices/pci0000:00/0000:00:1e.0/0000:06:03.0/0000:08:05.0/net/enp8s5
lrwxrwxrwx 1 root root 0 Apr  9 11:16 lo -> ../../devices/virtual/net/lo
lrwxrwxrwx 1 root root 0 Apr  9 11:18 ppp0 -> ../../devices/virtual/net/ppp0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 sit0 -> ../../devices/virtual/net/sit0
lrwxrwxrwx 1 root root 0 Apr  9 11:16 tunl0 -> ../../devices/virtual/net/tunl0


One of enp1s0, enp8s4 or enp8s5 is your PPP device? Then you can use /etc/init.d/net.enp1s0 symlink instead of /etc/init.d/net.ppp0 symlink.

OR...

Does the device have a MAC?

Code:

# udevadm test-builtin net_id /sys/class/net/ppp0 2> /dev/null
# udevadm test-builtin net_id /sys/class/net/enp1s0 2> /dev/null
# udevadm test-builtin net_id /sys/class/net/enp8s4 2> /dev/null
# udevadm test-builtin net_id /sys/class/net/enp8s5 2> /dev/null


You could use the MAC and write your own /etc/udev/rules.d/70-my-network.rules, like:

Quote:

SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="xx:xx:xx:xx:xx:xx", NAME="internet0"


Replace xx:xx:xx:xx:xx:xx with your own MAC and replace internet0 with whatever static name you want to give it. Don't use kernel names like eth*, wlan*, ppp*. Pick a meaningful name yourself
that is not used by the kernel, like lan* net* internet* vpn* or such.
Back to top
View user's profile Send private message
galaxy001
n00b
n00b


Joined: 15 Jun 2008
Posts: 11

PostPosted: Tue Apr 09, 2013 12:45 pm    Post subject: Reply with quote

ppp0 is the decive used for PPTP over Ethernet.

Since it is a virtual device, it is not in `/sys/class/net/` before net-dialup/ppp running.

I still wonder why /etc/init.d/net.ppp0 can run under udev < 200 but not in udev-200.

Code:

# udevadm test-builtin net_id /sys/class/net/ppp0
calling: test-builtin
=== trie on-disk ===
tool version:          200
file size:         5601550 bytes
header size             80 bytes
strings            1255726 bytes
nodes              4345744 bytes
load module index
unload module index

_________________
Galaxy
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum