Commit Graph

40 Commits

Author SHA1 Message Date
Martin Basti
52590d6fa5 DNS Locations: dnsserver: put server_id option into named.conf
The option server_id is required for DNS location feature, otherwise it
will not work.

https://fedorahosted.org/freeipa/ticket/2008

Reviewed-By: Petr Spacek <pspacek@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2016-06-17 15:22:24 +02:00
Jan Cholasta
6e44557b60 ipalib: move server-side plugins to ipaserver
Move the remaining plugin code from ipalib.plugins to ipaserver.plugins.

Remove the now unused ipalib.plugins package.

https://fedorahosted.org/freeipa/ticket/4739

Reviewed-By: David Kupka <dkupka@redhat.com>
2016-06-03 09:00:34 +02:00
Petr Spacek
6eb00561c0 DNS upgrade: change global forwarding policy in named.conf to "only" if private IPs are used
This change is necessary to override automatic empty zone configuration
in latest BIND and bind-dyndb-ldap 9.0+.

This upgrade has to be done on each IPA DNS server independently.

https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-30 20:14:32 +02:00
Petr Spacek
e45a80308c DNS upgrade: change global forwarding policy in LDAP to "only" if private IPs are used
This change is necessary to override automatic empty zone configuration
in latest BIND and bind-dyndb-ldap 9.0+.

This procedure is still not complete because we need to handle global
forwarders in named.conf too (independently on each server).

https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-30 20:14:32 +02:00
Petr Spacek
f750d42b6f DNS upgrade: change forwarding policy to = only for conflicting forward zones
This change is necessary to override automatic empty zone configuration
in latest BIND and bind-dyndb-ldap 9.0+.

This procedure is still not complete because we need to handle global
forwarders too (in LDAP and in named.conf on each server).

https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-30 20:14:32 +02:00
Petr Spacek
a4da9a2378 DNS upgrade: separate backup logic to make it reusable
https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-30 20:14:32 +02:00
Petr Spacek
321a2ba918 Add ipaDNSVersion option to dnsconfig* commands and use new attribute
Ad-hoc LDAP calls in DNS upgrade code were hard to maintain and
ipaConfigString was bad idea from the very beginning as it was hard to
manipulate the number in it.

To avoid problems in future we are introducing new ipaDNSVersion
attribute which is used on cn=dns instead of ipaConfigString.
Original value of ipaConfigString is kept in the tree for now
so older upgraders see it and do not execute the upgrade procedure again.

The attribute can be changed only by installer/upgrade so it is not
exposed in dnsconfig_mod API.

Command dnsconfig_show displays it only if --all option was used.

https://fedorahosted.org/freeipa/ticket/5710

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-30 20:14:32 +02:00
Jan Cholasta
bed546ee82 ipalib, ipaserver: migrate all plugins to Registry-based registration
Do not use the deprecated API.register method.

https://fedorahosted.org/freeipa/ticket/4739

Reviewed-By: David Kupka <dkupka@redhat.com>
2016-05-25 16:06:26 +02:00
Petr Spacek
475547fa40 DNS: Fix upgrade - master to forward zone transformation
This happens when upgrading from IPA <= 4.0 to versions 4.3+.

DNS caching might cause false positive in code which replaces master zone
with forward zone. This will effectivelly delete the master zone
without adding a replacement forward zone.

Solution is to use skip_overlap_check option for dnsforwardzone_add command
so zone existence check is skipped and the upgrade can proceed.

https://fedorahosted.org/freeipa/ticket/5851

Reviewed-By: Martin Basti <mbasti@redhat.com>
2016-05-10 10:13:56 +02:00
Martin Basti
e1192ebd97 Remove wildcard imports
Wildcard imports should not be used.

Check for wildcard imports has been enabled in pylint.
Pylint note: options 'wildcard-import' causes too much false positive
results, so instead it I used 'unused-wildcard-import' option which has almost
the same effect.

Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2015-12-23 07:59:22 +01:00
Martin Basti
e4075b1fe2 Remove unused imports
This patch removes unused imports, alse pylint has been configured to
check unused imports.

Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2015-12-23 07:59:22 +01:00
Petr Viktorin
27dabb4528 Modernize 'except' clauses
The 'as' syntax works from Python 2 on, and Python 3 will
drop the "comma" syntax.

Reviewed-By: Tomas Babej <tbabej@redhat.com>
2015-08-12 18:17:23 +02:00
Martin Basti
884afb5d38 Server Upgrade: use debug log level for upgrade instead of info
Upgrade contains too many unnecessary info logs.

Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2015-07-03 07:47:59 +00:00
Martin Basti
520bbd001b Server Upgrade: Allow base64 encoded values
This patch allows to use base64 encoded values in update files.

Double colon ('::') must be used as separator between attribute name
and base64 encoded value.

add:attr::<base64-value>
replace:attr::<old-base64-value>::<new-base64-value>

https://fedorahosted.org/freeipa/ticket/4984

Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2015-05-11 16:08:01 +00:00
Martin Basti
0e752aab29 Server Upgrade: plugins should use ldapupdater API instance
This is required to have proper LDAP connection in plugins

https://fedorahosted.org/freeipa/ticket/4904

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-04-14 19:25:47 +02:00
Martin Basti
f24f614396 Server Upgrade: specify order of plugins in update files
* add 'plugin' directive
* specify plugins order in update files
* remove 'run plugins' options
* use ldapupdater API instance in plugins
* add update files representing former PreUpdate and PostUpdate order of plugins

https://fedorahosted.org/freeipa/ticket/4904

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-04-14 19:25:47 +02:00
Martin Basti
cc19b5a76a Server Upgrade: Apply plugin updates immediately
Preparation to moving plugins executin into update files.
* remove apply_now flag
* plugins will return only (restart, modifications)

https://fedorahosted.org/freeipa/ticket/4904

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-04-14 19:25:47 +02:00
Tomas Babej
4190b1a47c Revert "Server Upgrade: respect --test option in plugins"
This reverts commit c95c4849ae.
2015-03-19 12:48:06 +01:00
Martin Basti
c95c4849ae Server Upgrade: respect --test option in plugins
Several plugins do the LDAP data modification directly.
In test mode these plugis should not be executed.

https://fedorahosted.org/freeipa/ticket/3448

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-03-19 12:40:24 +01:00
Martin Basti
0c7274ead8 Server Upgrade: Update entries in order specified in file
Dictionary replaced with list. Particular upgrades are
executed in the same order as they are specified in update
a file.

Different updates for the smae cn, are not merged into one upgrade

https://fedorahosted.org/freeipa/ticket/4904

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-03-19 12:37:09 +01:00
Martin Basti
d3f5d5d1ff Server Upgrade: Remove unused PRE_SCHEMA_UPDATE
This is not used anymore.

Ticket: https://fedorahosted.org/freeipa/ticket/4904
Reviewed-By: David Kupka <dkupka@redhat.com>
2015-03-19 12:33:22 +01:00
Martin Basti
af6aece39b Fix zone find during forwardzone upgrade
https://fedorahosted.org/freeipa/ticket/4818

Reviewed-By: Petr Spacek <pspacek@redhat.com>
2015-01-09 13:30:37 +01:00
Martin Basti
bb405bd972 Fix: Upgrade forwardzones zones after adding newer replica
Patch fixes issue, when forwardzones has not been upgraded after adding
replica >=4.0 into topology with IPA 3.x servers.

Ticket: https://fedorahosted.org/freeipa/ticket/4818
Reviewed-By: Petr Spacek <pspacek@redhat.com>
2015-01-09 13:30:37 +01:00
Martin Basti
40ea328a78 Fix: DNS policy upgrade raises asertion error
Ticket: https://fedorahosted.org/freeipa/ticket/4708
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2014-11-13 12:12:28 +00:00
Martin Basti
00309f8e42 Fix DNS upgrade plugin should check if DNS container exists
Fortunately this cause no error, because dnszone-find doesnt raise
exception if there is no DNS container

Reviewed-By: Petr Viktorin <pviktori@redhat.com>
2014-07-28 17:42:38 +02:00
Martin Basti
f8b6595f49 Restore privileges after forward zones update
Ticket: https://fedorahosted.org/freeipa/ticket/3210
Reviewed-By: Petr Spacek <pspacek@redhat.com>
2014-07-04 12:48:50 +02:00
Martin Basti
eea1015441 Fix upgrade to forward zones
Reviewed-By: Petr Spacek <pspacek@redhat.com>
2014-07-03 14:04:57 +02:00
Martin Basti
aa2ef07b8c Upgrade special master zones to forward zones
This upgrade is executed only if IPA version is older than 4.0
Requires detection if 'idnsforwardzone' objectclass is presented in
schema before schema is upgraded

Design: http://www.freeipa.org/page/V4/Forward_zones#Updates_and_Upgrades

Ticket: https://fedorahosted.org/freeipa/ticket/3210
Reviewed-By: Martin Kosek <mkosek@redhat.com>
2014-06-27 14:54:35 +02:00
Petr Viktorin
700ac6c116 Remove the update_dns_permissions plugin
This plugin created permissions that the managed permission
updater would remove right away.

Part of the work for: https://fedorahosted.org/freeipa/ticket/4346

Reviewed-By: Martin Kosek <mkosek@redhat.com>
2014-06-18 14:45:51 +02:00
Jan Cholasta
97c1c95f20 Convert remaining update code to LDAPEntry API. 2014-01-24 20:29:31 +01:00
Petr Viktorin
334ba2e79f Remove unused imports from ipaserver/install
Part of the work for: https://fedorahosted.org/freeipa/ticket/2660
2013-03-01 16:59:44 +01:00
John Dennis
94d457e83c Use DN objects instead of strings
* Convert every string specifying a DN into a DN object

* Every place a dn was manipulated in some fashion it was replaced by
  the use of DN operators

* Add new DNParam parameter type for parameters which are DN's

* DN objects are used 100% of the time throughout the entire data
  pipeline whenever something is logically a dn.

* Many classes now enforce DN usage for their attributes which are
  dn's. This is implmented via ipautil.dn_attribute_property(). The
  only permitted types for a class attribute specified to be a DN are
  either None or a DN object.

* Require that every place a dn is used it must be a DN object.
  This translates into lot of::

    assert isinstance(dn, DN)

  sprinkled through out the code. Maintaining these asserts is
  valuable to preserve DN type enforcement. The asserts can be
  disabled in production.

  The goal of 100% DN usage 100% of the time has been realized, these
  asserts are meant to preserve that.

  The asserts also proved valuable in detecting functions which did
  not obey their function signatures, such as the baseldap pre and
  post callbacks.

* Moved ipalib.dn to ipapython.dn because DN class is shared with all
  components, not just the server which uses ipalib.

* All API's now accept DN's natively, no need to convert to str (or
  unicode).

* Removed ipalib.encoder and encode/decode decorators. Type conversion
  is now explicitly performed in each IPASimpleLDAPObject method which
  emulates a ldap.SimpleLDAPObject method.

* Entity & Entry classes now utilize DN's

* Removed __getattr__ in Entity & Entity clases. There were two
  problems with it. It presented synthetic Python object attributes
  based on the current LDAP data it contained. There is no way to
  validate synthetic attributes using code checkers, you can't search
  the code to find LDAP attribute accesses (because synthetic
  attriutes look like Python attributes instead of LDAP data) and
  error handling is circumscribed. Secondly __getattr__ was hiding
  Python internal methods which broke class semantics.

* Replace use of methods inherited from ldap.SimpleLDAPObject via
  IPAdmin class with IPAdmin methods. Directly using inherited methods
  was causing us to bypass IPA logic. Mostly this meant replacing the
  use of search_s() with getEntry() or getList(). Similarly direct
  access of the LDAP data in classes using IPAdmin were replaced with
  calls to getValue() or getValues().

* Objects returned by ldap2.find_entries() are now compatible with
  either the python-ldap access methodology or the Entity/Entry access
  methodology.

* All ldap operations now funnel through the common
  IPASimpleLDAPObject giving us a single location where we interface
  to python-ldap and perform conversions.

* The above 4 modifications means we've greatly reduced the
  proliferation of multiple inconsistent ways to perform LDAP
  operations. We are well on the way to having a single API in IPA for
  doing LDAP (a long range goal).

* All certificate subject bases are now DN's

* DN objects were enhanced thusly:
  - find, rfind, index, rindex, replace and insert methods were added
  - AVA, RDN and DN classes were refactored in immutable and mutable
    variants, the mutable variants are EditableAVA, EditableRDN and
    EditableDN. By default we use the immutable variants preserving
    important semantics. To edit a DN cast it to an EditableDN and
    cast it back to DN when done editing. These issues are fully
    described in other documentation.
  - first_key_match was removed
  - DN equalty comparison permits comparison to a basestring

* Fixed ldapupdate to work with DN's. This work included:
  - Enhance test_updates.py to do more checking after applying
    update. Add test for update_from_dict(). Convert code to use
    unittest classes.
  - Consolidated duplicate code.
  - Moved code which should have been in the class into the class.
  - Fix the handling of the 'deleteentry' update action. It's no longer
    necessary to supply fake attributes to make it work. Detect case
    where subsequent update applies a change to entry previously marked
    for deletetion. General clean-up and simplification of the
    'deleteentry' logic.
  - Rewrote a couple of functions to be clearer and more Pythonic.
  - Added documentation on the data structure being used.
  - Simplfy the use of update_from_dict()

* Removed all usage of get_schema() which was being called prior to
  accessing the .schema attribute of an object. If a class is using
  internal lazy loading as an optimization it's not right to require
  users of the interface to be aware of internal
  optimization's. schema is now a property and when the schema
  property is accessed it calls a private internal method to perform
  the lazy loading.

* Added SchemaCache class to cache the schema's from individual
  servers. This was done because of the observation we talk to
  different LDAP servers, each of which may have it's own
  schema. Previously we globally cached the schema from the first
  server we connected to and returned that schema in all contexts. The
  cache includes controls to invalidate it thus forcing a schema
  refresh.

* Schema caching is now senstive to the run time context. During
  install and upgrade the schema can change leading to errors due to
  out-of-date cached schema. The schema cache is refreshed in these
  contexts.

* We are aware of the LDAP syntax of all LDAP attributes. Every
  attribute returned from an LDAP operation is passed through a
  central table look-up based on it's LDAP syntax. The table key is
  the LDAP syntax it's value is a Python callable that returns a
  Python object matching the LDAP syntax. There are a handful of LDAP
  attributes whose syntax is historically incorrect
  (e.g. DistguishedNames that are defined as DirectoryStrings). The
  table driven conversion mechanism is augmented with a table of
  hard coded exceptions.

  Currently only the following conversions occur via the table:

  - dn's are converted to DN objects

  - binary objects are converted to Python str objects (IPA
    convention).

  - everything else is converted to unicode using UTF-8 decoding (IPA
    convention).

  However, now that the table driven conversion mechanism is in place
  it would be trivial to do things such as converting attributes
  which have LDAP integer syntax into a Python integer, etc.

* Expected values in the unit tests which are a DN no longer need to
  use lambda expressions to promote the returned value to a DN for
  equality comparison. The return value is automatically promoted to
  a DN. The lambda expressions have been removed making the code much
  simpler and easier to read.

* Add class level logging to a number of classes which did not support
  logging, less need for use of root_logger.

* Remove ipaserver/conn.py, it was unused.

* Consolidated duplicate code wherever it was found.

* Fixed many places that used string concatenation to form a new
  string rather than string formatting operators. This is necessary
  because string formatting converts it's arguments to a string prior
  to building the result string. You can't concatenate a string and a
  non-string.

* Simplify logic in rename_managed plugin. Use DN operators to edit
  dn's.

* The live version of ipa-ldap-updater did not generate a log file.
  The offline version did, now both do.

https://fedorahosted.org/freeipa/ticket/1670
https://fedorahosted.org/freeipa/ticket/1671
https://fedorahosted.org/freeipa/ticket/1672
https://fedorahosted.org/freeipa/ticket/1673
https://fedorahosted.org/freeipa/ticket/1674
https://fedorahosted.org/freeipa/ticket/1392
https://fedorahosted.org/freeipa/ticket/2872
2012-08-12 16:23:24 -04:00
Martin Kosek
52f69aaa8a Per-domain DNS record permissions
IPA implements read/write permissions for DNS record or zones.
Provided set of permissions and privileges can, however, only grant
access to the whole DNS tree, which may not be appropriate.
Administrators may miss more fine-grained permissions allowing
them to delegate access per-zone.

Create a new IPA auxiliary objectclass ipaDNSZone allowing
a managedBy attribute for a DNS zone. This attribute will hold
a group DN (in this case a permission) which allows its members
to read or write in a zone. Member permissions in given zone
will only have 2 limitations:
1) Members cannot delete the zone
2) Members cannot edit managedBy attribute

Current DNS deny ACI used to enforce read access is removed so that
DNS privileges are based on allow ACIs only, which is much more
flexible approach as deny ACIs have always precedence and limit
other extensions. Per-zone access is allowed in 3 generic ACIs
placed in cn=dns,$SUFFIX so that no special ACIs has to be added
to DNS zones itselves.

2 new commands have been added which allows an administrator to
create the system permission allowing the per-zone access and
fill a zone's managedBy attribute:
 * dnszone-add-permission: Add per-zone permission
 * dnszone-remove-permission: Remove per-zone permission

https://fedorahosted.org/freeipa/ticket/2511
2012-06-28 15:21:21 +02:00
Martin Kosek
c06cbb12ac Fill new DNS zone update policy by default
For security reasons, dynamic updates are not enabled for new DNS
zones. In order to enable the dynamic zone securely, user needs to
allow dynamic updates and create a zone update policy.

The policy is not easy to construct for regular users, we should
rather fill it by default and let users just switch the policy
on or off.

https://fedorahosted.org/freeipa/ticket/2441
2012-06-05 08:41:46 +02:00
Martin Kosek
9a5c2090eb Remove LDAP limits from DNS service
bind-dyndb-ldap persistent search queries LDAP for all DNS records.
The LDAP connection must have no size or time limits to work
properly.

This patch updates limits both for existing service principal
on updated machine and for new service principals added
as a part of DNS installation.

https://fedorahosted.org/freeipa/ticket/2531
2012-05-22 12:28:21 +02:00
Rob Crittenden
0423213148 Use mixed-case for Read DNS Entries permission
https://fedorahosted.org/freeipa/ticket/2569
2012-04-23 10:00:40 +02:00
Martin Kosek
df13cdcb97 Forbid public access to DNS tree
With a publicly accessible DNS tree in LDAP, anyone with an access
to the LDAP server can get all DNS data as with a zone transfer
which is already restricted with ACL. Making DNS tree not readable
to public is a common security practice and should be applied
in FreeIPA as well.

This patch adds a new deny rule to forbid access to DNS tree to
users or hosts without an appropriate permission or users which
are not members of admins group. The new permission/aci is
applied both for new installs and upgraded servers.

bind-dyndb-ldap plugin is allowed to read DNS tree without any
change because its principal is already a member of "DNS
Servers" privilege.

https://fedorahosted.org/freeipa/ticket/2569
2012-04-01 21:17:04 -04:00
Martin Kosek
b944ad44b5 Amend permissions for new DNS attributes
New features in bind-dyndb-ldap and IPA DNS plugin pulled new
attributes and objectclasses. ACIs and permissions need to be
updated to allow users with appropriate permissions update
these attributes in LDAP.

This patch updates the ACI for DNS record updates and adds one
new permission to update global DNS configuration.

https://fedorahosted.org/freeipa/ticket/2510
2012-03-25 23:58:24 -04:00
Martin Kosek
7fe63f8233 Add SSHFP update policy for existing zones
SSH public key support includes a feature to automatically add/update
client SSH fingerprints in SSHFP records. However, the update won't
work for zones created before this support was added as they don't
allow clients to update SSHFP records in their update policies.

This patch lets dns upgrade module extend the original policy
to allow the SSHFP dynamic updates. It updates only original
policy, we don't want it to overwrite custom user policies.

https://fedorahosted.org/freeipa/ticket/2394
2012-02-27 18:04:19 +01:00
Martin Kosek
8605790225 Query and transfer ACLs for DNS zones
Provide a way to specify BIND allow-query and allow-transfer ACLs
for DNS zones.

IMPORTANT: new bind-dyndb-ldap adds a zone transfer ability. To
avoid zone information leaks to unintended places, allow-transfer
ACL for every zone is by default set to none and has to be
explicitly enabled by an Administrator. This is done both for new
DNS zones and old DNS zones during RPM update via new DNS upgrade
plugin.

https://fedorahosted.org/freeipa/ticket/1211
2012-02-24 09:40:43 +01:00