Re: [Help-gnunet] gnunet-dns interface

[Calvin Heim]

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Hi Christian,

So... gnunet-config hasn't been writing to /etc/gnunet.conf on my
machine. I think this has been happening because I only gave the
gnunet user write permissions for /etc/gnunet.conf. But I think I need
to give write permissions for the whole directory of /etc/ because
there's a call to access() to check the user's write permissions for
/etc/ when the command

gnunet-config -c /etc/gnunet.conf

runs. Here's the relevant line and backtrace from gdb:

810       if ((ret == GNUNET_OK) && (0 != ACCESS (rdir, W_OK)))
(gdb) p rdir
$1 = 0x8053c68 "/etc"
(gdb) bt
#0  GNUNET_DISK_directory_create_for_file
(address@hidden "/etc/gnunet.conf")
    at disk.c:810
#1  0xb7f56440 in GNUNET_CONFIGURATION_write (address@hidden,
    address@hidden "/etc/gnunet.conf") at
configuration.c:487
#2  0x08048ada in run (cls=0x0, args=0x804c67c, cfgfile=0x804d1c8
"/etc/gnunet.conf", cfg=0x804c710)
    at gnunet-config.c:140
#3  0xb7f82bf0 in program_main (cls=0xbffffaa0, tc=0xbffffa24) at
program.c:84
#4  0xb7f8979d in run_ready (ws=<optimized out>, rs=<optimized out>)
at scheduler.c:595
#5  GNUNET_SCHEDULER_run (address@hidden <program_main>,
address@hidden)
    at scheduler.c:817
#6  0xb7f833a1 in GNUNET_PROGRAM_run2 (address@hidden,
address@hidden,
    address@hidden "gnunet-config [OPTIONS]",
    address@hidden "Manipulate GNUnet
configuration files",
    address@hidden <options>,
address@hidden <run>, address@hidden,
    address@hidden) at program.c:286
#7  0xb7f83773 in GNUNET_PROGRAM_run (argc=9, argv=0x804c658,
    address@hidden "gnunet-config [OPTIONS]",
    address@hidden "Manipulate GNUnet
configuration files",
    address@hidden <options>,
address@hidden <run>, address@hidden)
    at program.c:325
#8  0x08048901 in main (argc=9, argv=0x804c658) at gnunet-config.c:177

So, this might be a dumb question, but does gnunet write other files
to /etc/ besides the configuration file? In other words, why does the
gnunet user need write permissions for /etc/ beyond the configuration
file?

Calvin
On 02/04/2015 02:55 AM, Calvin Heim wrote:
> Hi Christian,
> 
> I was mistaken when I said that the transport tests were passing
> -- they aren't passing. I misunderstood what was being tested.
> 
> address@hidden:~$ gnunet-transport -t
> 
> passes, using a configuration file from the gnunet user's 
> ~/.config/gnunet.conf But
> 
> address@hidden:~$ gnunet-transport -t -c /etc/gnunet.conf
> 
> does *not* pass because setup changes aren't being written to 
> /etc/gnunet.conf. I've been (mistakenly?) running
> 
> address@hidden:~$ gnunet-setup
> 
> with the configuration file in the gnunet user's 
> ~/.config/gnunet.conf, when I should be running
> 
> address@hidden:~$ gnunet-setup -c /etc/gnunet.conf
> 
> instead. However, I've been unable to write to /etc/gnunet.conf 
> through either gnunet-config or gnunet-setup, despite gnunet
> owning the file and being able to write to it via text editor. I am
> perplexed as to why I can't save changes, even when the permissions
> seem right:
> 
> address@hidden:~$ ls -l /etc/gnunet.conf -rw-r--r-- 1 gnunet gnunet
> 38 Feb  4 02:29 /etc/gnunet.conf
> 
> address@hidden:~$ gnunet-setup -c /etc/gnunet.conf # zero effect on 
> /etc/gnunet.conf address@hidden:~$ vim /etc/gnunet.conf #
> successfully writes to file
> 
> On 01/27/2015 05:03 AM, Christian Grothoff wrote:
>> Things seem to be much better now, and I've restarted the peer
>> at gnunet.org with a version that does connect again (it had
>> been running a 'broken' version for a few days, which might have 
>> prevented new peers from bootstrapping, even if they ran an
>> working version).  AFAIK SVN HEAD should also connect fine with
>> 0.10.1 (but I didn't test it explicitly).  So trying now should
>> work better. -Christian
> 
> 
> _______________________________________________ Help-gnunet mailing
> list address@hidden 
> https://lists.gnu.org/mailman/listinfo/help-gnunet
> 

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