Created attachment 1019948
autofs.patch
Description of problem:
when default_domain_suffix is enabled, you must enable use_fully_qualified
names.  this breaks the autofs provider, which then returns 'Cannot allocate
memory' for the maps.
Version-Release number of selected component (if applicable):
sssd-1.12.2-58.el7.6.x86_64
How reproducible:
always
Steps to Reproduce:
1. set default_domain_suffix and use_fully_qualified names
2. configure autofs maps in IPA
3. attempt to access maps
Actual results:
[root@client01 ~]# ipa automountlocation-tofiles default; grep -e fully -e
default /etc/sssd/sssd.conf; service sssd restart; sss_cache -E; service autofs
restart; automount -m
/etc/auto.master:
/-      /etc/auto.direct
/test   /etc/auto.test
---------------------------
/etc/auto.direct:
---------------------------
/etc/auto.test:
test    -fstype=nfs  test:/test
maps not connected to /etc/auto.master:
use_fully_qualified_names = true
default_domain_suffix = example.com
Redirecting to /bin/systemctl restart  sssd.service
Redirecting to /bin/systemctl restart  autofs.service
setautomntent: lookup(sss): setautomntent: Cannot allocate memory
setautomntent: lookup(sss): setautomntent: Cannot allocate memory
autofs dump map information
===========================
global options: none configured
no master map entries found
Expected results:
[root@client01 ~]# ipa automountlocation-tofiles default; grep -e fully -e
default /etc/sssd/sssd.conf; service sssd restart; sss_cache -E; service autofs
restart; automount -m
/etc/auto.master:
/-      /etc/auto.direct
/test   /etc/auto.test
---------------------------
/etc/auto.direct:
---------------------------
/etc/auto.test:
test    -fstype=nfs  test:/test
maps not connected to /etc/auto.master:
use_fully_qualified_names = true
default_domain_suffix = example.com
Redirecting to /bin/systemctl restart  sssd.service
Redirecting to /bin/systemctl restart  autofs.service
autofs dump map information
===========================
global options: none configured
Mount point: /-
source(s):
lookup_read_map: lookup(sss): getautomntent_r: No such file or directory
  instance type(s): sss
  map: auto.direct
  no keys found in map
Mount point: /test
source(s):
  instance type(s): sss
  map: auto.test
  test | -fstype=nfs  test:/test
Additional info:
crude patch to fix is attached.  behavior is as expected in an AD/IPA trust
environment with this bit of code removed, but may not be technically correct.
this combination of options is required after
https://bugzilla.redhat.com/show_bug.cgi?id=1211830