> Jakub Hrozek <jhro...@redhat.com> hat am 27. September 2019 um 09:55
> geschrieben:
>
>
> On Fri, Sep 27, 2019 at 09:34:42AM +0200, w...@mailbox.org wrote:
> >
> > > Jakub Hrozek <jhro...@redhat.com> hat am 26. September 2019 um 14:52
> > > geschrieben:
> > >
> > >
> > > On Tue, Sep 24, 2019 at 01:21:45PM +0200, w...@mailbox.org wrote:
> > > > Hello list,
> > > > I'm trying to setup sssd to access automounter rules stored on an AD
> > > > (samba 4.7.6).
> > > > I followed the instructions on this site, however it doesn't work for
> > > > me.
> > > > https://ovalousek.wordpress.com/2015/08/03/autofs/
> > > > In the sssd_logfile I see, that the "auto.master" map is found by sssd
> > > > within the ldap search path.
> > > > However, the reference to the auto.home and the corresponding user
> > > > mounts does not seem to be found.
> > > >
> > > > Using sssd to authenticate against Active Directory works well.
> > > >
> > > > Any ideas what's going wrong here? Thanks for looking in this issue!
> > >
> > > Normally when I debug automounter issues, I used to run automount -m on
> > > the foreground in one terminal and try to correlate those with the sssd
> > > logs tailing in another terminal.
> > >
> > > Can you paste those?
> >
> > Thanks, for your advice!
> > I stopped the automounter daemon and run the automounter in the foreground:
> >
> > root@fs1:~# automount -f -v
> > Starting automounter version 5.1.2, master map /etc/auto.master
> > using kernel protocol version 5.02
> > no mounts in table
> >
> > After that, I restart the sssd daemon and dump the automounter maps in
> > another terminal:
> >
> > root@fs1:~# automount -m
> >
> > autofs dump map information
> > ===========================
> >
> > global options: none configured
> > no master map entries found
> >
> >
> > However the automounter still gives no further output.
> > After that, I moved the empty /etc/auto.master away and restart the
> > automounter in the foreground:
> >
> > root@fs1:~# automount -f -v
> > Starting automounter version 5.1.2, master map /etc/auto.master
> > using kernel protocol version 5.02
> > lookup(file): file map /etc/auto.master missing or not readable no mounts
> > in table
> >
> > No additional output from the automounter after restarting sssd.
> > In the logs of the sssd at startup I found the following:
> >
> > ...
> > (Fri Sep 27 08:13:46 2019) [sssd[be[info.privat]]] [dp_get_options]
> > (0x0400): Option ldap_autofs_search_base has value
> > ou=automount,dc=informatik,dc=privat
> > ...
> > (Fri Sep 27 08:13:46 2019) [sssd[be[info.privat]]] [dp_get_options]
> > (0x0400): Option ldap_autofs_map_master_name has value auto.master
> > ...
> >
> > Why is the automounter not looking for the maps from the sssd daemon? I
> > think, that the automounter doesn't communicate with the sssd daemon for
> > automounter maps, although the nsswitch.conf looks like this:
> >
> > ...
> > automount: files sss
> > ...
> >
> >
> > Do I miss something or how can I narrow down the problem?
>
> Is the autofs responder of sssd running?
These processes are running concerning ssd:
/usr/sbin/sssd -i --logger=files
/usr/lib/x86_64-linux-gnu/sssd/sssd_be --domain informatik.privat --uid 0 --gid
0 --logger=files
/usr/lib/x86_64-linux-gnu/sssd/sssd_nss --uid 0 --gid 0 --logger=files
/usr/lib/x86_64-linux-gnu/sssd/sssd_pam --uid 0 --gid 0 --logger=files
/usr/lib/x86_64-linux-gnu/sssd/sssd_autofs --uid 0 --gid 0 --logger=files
> Is libsss_autofs installed?
Seems to be installed:
./usr/lib/x86_64-linux-gnu/sssd/modules/libsss_autofs.so
>
> If you strace automount, can you see it contacting the sssd socket?
Also the socket seems to be created:
ls -l /var/lib/sss/pipes/
total 4
srw-rw-rw- 1 root root 0 Sep 27 09:15 autofs
srw-rw-rw- 1 root root 0 Sep 27 09:15 nss
srw-rw-rw- 1 root root 0 Sep 27 09:15 pam
drwx------ 2 sssd sssd 4096 Sep 27 09:15 private
However, when I strace automount, there is no access to the sssd socket:
...
munmap(0x7fdaff1ac000, 39635) = 0
futex(0x7fdafeb6b6a8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/autofs/lookup_file.so",
O_RDONLY|O_CLOEXEC) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\220\0\0\0\0\0\0"...,
832) = 832
fstat(6, {st_mode=S_IFREG|0644, st_size=194496, ...}) = 0
mmap(NULL, 2295984, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 6, 0) =
0x7fdafb4a7000
mprotect(0x7fdafb4d4000, 2097152, PROT_NONE) = 0
mmap(0x7fdafb6d4000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 6, 0x2d000) = 0x7fdafb6d4000
mmap(0x7fdafb6d6000, 6320, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdafb6d6000
close(6) = 0
mprotect(0x7fdafb6d4000, 4096, PROT_READ) = 0
access("/etc/auto.master", R_OK) = -1 ENOENT (No such file or directory)
write(2, "lookup(file): file map /etc/auto"..., 63) = 63
....
Hm, what is missing here?
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