I'm trying to change the password complexity requirements in
pam.d/system-auth using augeas. I can append the values (lcredit=-1,
ucredit=-1, etc) onto the correct place, but if another value is
already present (i.e. lcredit=-2), the onlyif match statement doesn't
seem to support checking regular expressions inside of strings. How do
I check that any numeric value exists in the argument??
define passwordcomplexity($lowercase = "1", $uppercase = "1",
$numeric = "1", $special = "1") {
augeas { "add_lowercase_reqs" :
context => "/files/etc/pam.d",
changes => "set
system-auth/*[module='pam_cracklib.so']/argument[last()+1]
lcredit=-$lowercase",
onlyif => "match
system-auth/*[argument='lcredit=*'] size == 0",
}
augeas { "add_uppercase_reqs" :
context => "/files/etc/pam.d",
changes => "set
system-auth/*[module='pam_cracklib.so']/argument[last()+1]
ucredit=-$uppercase",
onlyif => "match
system-auth/*[argument='ucredit=*'] size == 0",
}
augeas { "add_numeric_reqs" :
context => "/files/etc/pam.d",
changes => "set
system-auth/*[module='pam_cracklib.so']/argument[last()+1]
dcredit=-$numeric",
onlyif => "match
system-auth/*[argument='dcredit=*'] size == 0",
}
augeas { "add_special_reqs" :
context => "/files/etc/pam.d",
changes => "set
system-auth/*[module='pam_cracklib.so']/argument[last()+1]
ocredit=-$special",
onlyif => "match
system-auth/*[argument='ocredit=*'] size == 0",
}
}
This will continuously append lcredit=-2, etc onto the end of the
line, without checking the values that currently exist:
----------------------------------------------------
password requisite pam_cracklib.so try_first_pass retry=3
maxrepeat=3 lcredit=-2 ocredit=-2 dcredit=-2
ucredit=-2 dcredit=-2 ocredit=-2 lcredit=-2
ucredit=-2
-----------------------------------------------------
~Ed
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