The new model is based on permssions, privileges and roles.
Most importantly it corrects the reverse membership that caused problems
in the previous implementation. You add permission to privileges and
privileges to roles, not the other way around (even though it works that
way behind the scenes).
A permission object is a combination of a simple group and an aci.
The linkage between the aci and the permission is the description of
the permission. This shows as the name/description of the aci.
ldap:///self and groups granting groups (v1-style) are not supported by
this model (it will be provided separately).
This makes the aci plugin internal only.
ticket 445
The list of attributes that a host bound as itself could write was
overly broad.
A host can now only update its description, information about itself
such as OS release, etc, its certificate, password and keytab.
ticket 416
Disable any services when its host is disabled.
This also adds displaying the certificate attributes (subject, etc)
a bit more universal and centralized in a single function.
ticket 297
serverHostName because this is tied to the FQDN so should only be changed
on a host rename (which we don't do).
memberOf because the plugin should do this. Directly manging this attribute
would be pretty dangerous and confusing.
Also remove a redundant aci granting the admins group write access to
users and groups. They have it with through the "admins can modify any
entry" aci.
tickets 300, 304
Unenrollment means that the host keytab is disabled on the server making
it possible to re-install on the client. This host principal is how we
distinguish an enrolled vs an unenrolled client machine on the server.
I added a --unroll option to ipa-join that binds using the host credentials
and disables its own keytab.
I fixed a couple of other unrelated problems in ipa-join at the same time.
I also documented all the possible return values of ipa-getkeytab and
ipa-join. There is so much overlap because ipa-join calls ipa-getkeytab
and it returns whatever value ipa-getkeytab returned on failure.
ticket 242
Using the host service principal one should be able to retrieve a keytab
for other services for the host using ipa-getkeytab. This required a number
of changes:
- allow hosts in the service's managedby to write krbPrincipalKey
- automatically add the host to managedby when a service is created
- fix ipa-getkeytab to return the entire prinicpal and not just the
first data element. It was returning "host" from the service tgt
and not host/ipa.example.com
- fix the display of the managedby attribute in the service plugin
This led to a number of changes in the service unit tests. I took the
opportunity to switch to the Declarative scheme and tripled the number
of tests we were doing. This shed some light on a few bugs in the plugin:
- if a service had a bad usercertificate it was impossible to delete the
service. I made it a bit more flexible.
- I added a summary for the mod and find commands
- has_keytab wasn't being set in the find output
ticket 68
We use kadmin.local to bootstrap the creation of the kerberos principals
for the IPA server machine: host, HTTP and ldap. This works fine and has
the side-effect of protecting the services from modification by an
admin (which would likely break the server).
Unfortunately this also means that the services can't be managed by useful
utilities such as certmonger. So we have to create them as "real" services
instead.
Using the client IP address was a rather poor mechanism for controlling
who could request certificates for whom. Instead the client machine will
bind using the host service principal and request the certificate.
In order to do this:
* the service will need to exist
* the machine needs to be in the certadmin rolegroup
* the host needs to be in the managedBy attribute of the service
It might look something like:
admin
ipa host-add client.example.com --password=secret123
ipa service-add HTTP/client.example.com
ipa service-add-host --hosts=client.example.com HTTP/client.example.com
ipa rolegroup-add-member --hosts=client.example.com certadmin
client
ipa-client-install
ipa-join -w secret123
kinit -kt /etc/krb5.keytab host/client.example.com
ipa -d cert-request file://web.csr --principal=HTTP/client.example.com
