Description of problem:
Expecting appropriate error message when new password length is less than 8
characters when ldap_pwmodify_mode = ldap_modify in sssd.conf

Version-Release number of selected component (if applicable):
sssd-1.16.4-37.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Setup sssd client with the rhds server and enable passwordCheckSyntax on
server
[root@ci-vm-10-0-153-118 ~]#  ldapsearch -xLLL -p 389 -h localhost -D
"cn=Directory Manager" -w Secret123 -b "cn=config"  | grep passwordCheckSyntax
passwordCheckSyntax: on

2. Add ldap_pwmodify_mode = ldap_modify in sssd.conf
[root@ci-vm-10-0-153-121 ~]# cat /etc/sssd/sssd.conf
[sssd]
config_file_version = 2
services = nss, pam
domains = example1

[domain/example1]
ldap_search_base = dc=example,dc=test
id_provider = ldap
auth_provider = ldap
ldap_user_home_directory = /home/%u
ldap_uri = ldaps://server.example.com
use_fully_qualified_names = True
debug_level = 9
ldap_pwmodify_mode = ldap_modify

3. Try to change password of a user

Actual results:
[foo9@example1@ipaqavmh /]$ passwd
Changing password for user foo9@example1.
Current Password:
New password: <password like red_12>
Retype new password: <password like red_12>
passwd: all authentication tokens updated successfully.

Here I provided a new password having a length less than 8 characters
but still, it's giving a message of successful password change.


from log,
(Wed Jan 29 05:14:55 2020) [sssd[be[example1]]] [sdap_process_result] (0x2000):
Trace: sh[0x5587f4bdd960], connected[1], ops[0x5587f4bfbb90],
ldap[0x5587f4bfdb80]
(Wed Jan 29 05:14:55 2020) [sssd[be[example1]]] [sdap_process_message]
(0x4000): Message type: [LDAP_RES_MODIFY]
(Wed Jan 29 05:14:55 2020) [sssd[be[example1]]] [sdap_modify_done] (0x1000):
ldap_modify result: Constraint violation(19), invalid password syntax -
password must be at least 8 characters long
(Wed Jan 29 05:14:55 2020) [sssd[be[example1]]] [sdap_op_destructor] (0x2000):
Operation 3 finished
(Wed Jan 29 05:14:55 2020) [sssd[be[example1]]] [sdap_modify_passwd_done]
(0x0400): Password change for [uid=foo9,ou=People,dc=example,dc=test] was
successful



Expected results:
Must give a proper error message when new password length is less than 8
characters.

Additional info: