Re: [Vserver] PPP inside VServer

Eugene Roux wrote:
> Hi Herbert,
>
> On Fri, 2006-08-25 at 01:30 +0200, Herbert Poetzl wrote:
>
>>On Thu, Aug 24, 2006 at 09:15:09PM +0200, Eugéne Roux wrote:
>>
>>>Hi Baltasar,
>>>
>>>On 24 Aug 2006, at 5:14 PM, Baltasar Cevc wrote:
>>>
>>>
>>>>I'm not sure, but that may be a priviledge problem - try if it works
>>>>when adding the appropirate capabilities if you haven't done so yet
>>>>(I think it should be CAP_NET_ADMIN). However adding that capability
>>>>is a security issue as the guest is allowed to change too many
>>>>network settings then.
>>>
>>>I assumes so initially as well, but since I got little out of the
>>>system, I decided to throw CAPS at it in the hope that I could tighten
>>>up to the express limit it required once I got it working.
>>>
>
>
> <snip />
>
>>>Accessing these modems using "cu -l /dev/modem" works fine, but when I
>>>try and bring up a PPP link I get the following:
>>
>>> root@vs01-vc01:/# /usr/sbin/pppd.org user root call FOOCHAT
>>> chat: Aug 22 12:07:35 CONNECT 1800000
>>> Serial connection established.
>>> Using interface ppp0
>>> Connect: ppp0 <--> /dev/modem
>>> Could not determine remote IP address: defaulting to 10.64.64.64
>>> ioctl(SIOCSIFDSTADDR): Cannot assign requested address(99)
>>> Connection terminated.
>>> Connect time 0.1 minutes.
>>> Sent 126 bytes, received 150 bytes.
>>> root@vs01-vc01:/#
>>
>>could you run that through strace -fF please and
>>narrow the syscalls down to the relevant ones
>>around the ioctl(SIOCSIFDSTADDR)?
>
>
> 3840 fcntl64(6, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=1020, len=1}) = 0
> 3840 fcntl64(6, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1020, len=1}) = 0
> 3840 fcntl64(6, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=1028, len=1}) = 0
> 3840 fcntl64(6, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=1020, len=1}) = 0
> 3840 fcntl64(6, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1020, len=1}) = 0
> 3840 fcntl64(6, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=1028, len=1}) = 0
> 3840 ioctl(4, JFFS_PRINT_HASH or PPPIOCGFLAGS, 0xbfd30dd4) = 0
> 3840 ioctl(4, PPPIOCSFLAGS, 0xbfd30dd4) = 0
> 3840 ioctl(5, SIOCGIFCONF, {32, {{"eth0:vc01", {AF_INET, inet_addr("10.121.23.187")}}}}) = 0
> 3840 ioctl(5, SIOCGIFFLAGS, {ifr_name="eth0:vc01", ifr_flags=IFF_UP|IFF_BROADCAST|IFF_RUNNING|IFF_MULTICAST}) = 0
> 3840 ioctl(5, SIOCGIFNETMASK, {ifr_name="eth0:vc01", ifr_netmask={AF_INET, inet_addr("255.255.255.255")}}) = 0
> 3840 ioctl(5, SIOCSIFADDR, 0xbfd30dac) = 0
> 3840 ioctl(5, SIOCSIFDSTADDR, 0xbfd30dac) = -1 EADDRNOTAVAIL (Cannot assign requested address)

Does your guest have the hide_netif flag set? Try
echo "~hide_netif" >> /etc/vservers/<name>/flags
and restart the guest, or alternatively, run
vattribute --xid <name> --set --flag ~hide_netif
for testing.

-- 
Daniel Hokka Zakrisson
GPG id: 06723412
GPG fingerprint: A455 4DF3 990A 431F FECA  7947 6136 DDA2 0672 3412
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