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
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
Precallback validator was failing when a zone-relative name was
used as a NS record (for example record "ns" in a zone "example.com").
However, this is valid in BIND and we should allow it as well.
Imports in dns module had to be switched to absolute imports
(available from Python 2.5) to deal with a conflict of IPA dns
module and dnspython module.
https://fedorahosted.org/freeipa/ticket/2630
Have the test suite check error messages.
Since XMLRPC doesn't give us structured error information, just
compare the resulting text.
Fix messages that tests expect to cause.
Minor changes:
Make netgroup-mod's NotFound message consistent with other objects
and methods.
In test_automember_plugin, test with nonexistent automember rules
of both types, instead of nonexistent users.
https://fedorahosted.org/freeipa/ticket/2549
Currently, each DNS test case first checks if DNS is configured
by creating and deleting a test zone. This takes quite a lot of time.
This patch moves the check to the setUpClass method, so the check is
only done once for all the tests.
Similarly, if the server is not available, entire XMLRPC test classes
are now skipped.
Additionally, CLItests that hit the server are skipped if the server
isn't available.
There were cases where DNS plugin was too tolerant in a raw DNS
record option (--<rrtype-rec) processing. It let people specify
DNS record parts options in dnsrecord-mod operations for some
record without specifying the record that should be updated. It
also ignored DNS record parts in dnsrecord-add operation when the
raw DNS record value was already set via --<rrtype>-rec option.
This patch hardens the processing and returns error in both
described cases to make the processes clearer and more robust.
All these use cases were also covered by new unit tests.
https://fedorahosted.org/freeipa/ticket/2551
DNS plugin contains several RR type record validators run in
pre_callback which cannot be used as standard param validator
as it needs more data and resources that standard validators
provide. However, the precallback validators are not run for
DNS records created by new structured options and thus an invalid
value may slip in.
This patch moves the execution of these precallback validators
_after_ the processing of structured DNS options. It also cleans
them up a little and makes them more robust.
https://fedorahosted.org/freeipa/ticket/2550
Splitting on commas is not an idempotent operation:
'a,b\,c' -> ('a', 'b,c') -> ('a', 'b', 'c')
That means we can't do it when the call is forwarded, so this is only
done on the CLI. The UI already sends values as a tuple.
Replace escaping in the csv parser with quoting. Quoted strings can have
embedded commas instead of having to escape them. This prevents the csv
parser from eating all escape characters.
Also, document Param's csv arguments, and update tests.
https://fedorahosted.org/freeipa/ticket/2417https://fedorahosted.org/freeipa/ticket/2227
Add a support for new global options in bind-dyndb-ldap, that is:
* idnsforwardpolicy: Default policy for conditional forwarding
* idnsallowsyncptr: Allow globaly PTR synchronization for dynamic
updates
* idnszonerefresh: Default interval between regular polls of the
name server for new DNS zones
https://fedorahosted.org/freeipa/ticket/2439
DNS plugin did not check DNS zone and DNS record validity and
user was thus able to create domains like "foo bar" or other
invalid DNS labels which would really confuse both user and
bind-dyndb-ldap plugin.
This patch at first consolidates hostname/domain name validators
so that they use common functions and we don't have regular
expressions and other checks defined in several places. These
new cleaned validators are then used for zone/record name
validation.
https://fedorahosted.org/freeipa/ticket/2384
Adding reverse DNS record may be a time consuming task, especially
for IPv6 addresses. Having a way to automatically create a reverse
record when a forward record is created could speed up the process.
host-add command already has this possibility.
This patch takes advantage of the new per-type API and adds new
options for A/AAAA record types: --a-create-reverse and
--aaaa-create-reverse. These commands can be used to automatically
create reverse records for new A/AAAA addresses (both forward
and reverse zones need to be managed by FreeIPA server):
ipa dnsrecord-add example.com foo --a-rec=10.0.0.1 --a-create-reverse
This command would add a new A record to record foo in zone
example.com and a PTR record to appropriate reverse zone for
IP address 10.0.0.1 (for example PTR record 1 in zone
0.0.10.in-addr.arpa. pointing to foo.example.com.).
Few modification were done to new DNS API to support this feature:
- Refactor --ip-address option handling from host-add and place it
to dns.py to be used by both modules
- Add support for "extra" per-type options
- Hide DNS record part options in dnsrecord_find command as they
have no effect for this command
https://fedorahosted.org/freeipa/ticket/2009
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
Implement API for DNS global options supported in bind-dyndb-ldap.
Currently, global DNS option overrides any relevant option in
named.conf. Thus they are not filled by default they are left as
a possibility for a user.
Bool encoding had to be fixed so that Bool LDAP attribute can also
be deleted and not just set to True or False.
https://fedorahosted.org/freeipa/ticket/2216
NSEC record needs special treatment as it is not composed from
a fixed set of DNS parts divided by space, but it contains
a multivalued DNS part "types" containing a list of RR types
it covers.
There was already a special method for parsing raw NSEC record
to DNS parts, but the other direction was missing. This patch
adds special NSEC convertor to fix this issue.
https://fedorahosted.org/freeipa/ticket/2307
TXT record validation fails to parse the record if it contains
spaces. Standard DNS part parser uses a space to divide record
parts. A special parser thus need to be implemented for this RR
type.
https://fedorahosted.org/freeipa/ticket/2306
Having float type as a base type for floating point parameters in
ipalib introduces several issues, e.g. problem with representation
or value comparison. Python language provides a Decimal type which
help overcome these issues.
This patch replaces a float type and Float parameter with a
decimal.Decimal type in Decimal parameter. A precision attribute
was added to Decimal parameter that can be used to limit a number
of decimal places in parameter representation. This approach fixes
a problem with API.txt validation where comparison of float values
may fail on different architectures due to float representation error.
In order to safely transfer the parameter value over RPC it is
being converted to string which is then converted back to
decimal.Decimal number on a server side.
https://fedorahosted.org/freeipa/ticket/2260
Current DNS record processing architecture has many flaws,
including custom execute() methods which does not take advantage
of base LDAP commands or nonstandard and confusing DNS record
option processing.
This patch refactors DNS record processing with the following
improvements:
* Every DNS record has now own Parameter type. Each DNS record
consists from one or more "parts" which are also Parameters.
This architecture will enable much easier implementation of
future per-DNS-type API.
* Validation is now not written as a separate function for
every parameter but is delegated to DNS record parts.
* Normalization is also delegated to DNS record parts.
* Since standard LDAP base commands execute method is now used,
dnsrecord-add and dnsrecord-mod correctly supports --setattr
and --addattr options.
* In order to prevent confusion unsupported DNS record types
are now hidden. They are still present in the plugin so that
old clients receive proper validation error.
The patch also contains several fixes:
* Fix domain-name validation and normalization- allow domain
names that are not fully qualified. For example --cname-rec=bar
is a valid domain-name for bind which will translate it then
as bar.<owning-domain>. This change implies, that fully qualified
domain names must end with '.'.
* Do not let user accidentally remove entire zone with command
"ipa dnsrecord-del @ --del-all".
* Fix --ttl and --class option processing in dnsrecord-add and
dnsrecord-mod.
All API changes are compatible with clients without this patch.
https://fedorahosted.org/freeipa/ticket/2082
Implement missing validators for DNS RR types so that we can capture
at least basic user errors. Additionally, a normalizer creating
a fully-qualified domain name has been implemented for several RRs
where name server may mis-interpret the domain name otherwise.
Unit tests exercising these new validators for the most common
RR types have been added. This patch also consolidates hard-coded
values in DNS test to one place.
https://fedorahosted.org/freeipa/ticket/1106
--allow-dynupdate was implemented as a Flag parameter type, which
is not convenient for LDAP attributes. When a DNS zone with
permitted dynamic updates was modified and the --allow-dynupdate
flag was not set, dynamic updates were turned off.
This patch changes the option type to Bool parameter type which
behaves according to user expectations when modifying the zone.
https://fedorahosted.org/freeipa/ticket/2039
Ticket 1627 contained a (temporary hack-ish) fix for dnszone-add
name_from_ip validation which works fine for CLI. However, when
the command is not proceeded via CLI and sent directly to the
RPC server, the server throws Internal Server Error.
Make sure that the server returns a reasonable error. Also implement
2 unit cases testing this option
https://fedorahosted.org/freeipa/ticket/1941
We have a larger goal of replacing all DN creation via string
formatting/concatenation with DN object operations because string
operations are not a safe way to form a DN nor to compare a DN. This
work needs to be broken into smaller chunks for easier review and
testing.
Addressing the unit tests first makes sense because we don't want to
be modifying both the core code and the tests used to verify the core
code simultaneously. If we modify the unittests first with existing
core code and no regressions are found then we can move on to
modifying parts of the core code with the belief the unittests can
validate the changes in the core code. Also by doing the unittests
first we also help to validate the DN objects are working correctly
(although they do have an extensive unittest).
The fundamental changes are:
* replace string substitution & concatenation with DN object
constructor
* when comparing dn's the comparision is done after promotion
to a DN object, then two DN objects are compared
* when a list of string dn's are to be compared a new list is
formed where each string dn is replaced by a DN object
* because the unittest framework accepts a complex data structure of
expected values where dn's are represeted as strings the unittest
needs to express the expected value of a dn as a callable object
(e.g. a lambda expression) which promotes the dn string to a DN
object in order to do the comparision.
Implement a test for new dnszone-find option --forward-only.
Fix example for reverse zone (zone was not fully qualified and
DNS plugin would forbid adding PTR records).
https://fedorahosted.org/freeipa/ticket/1473
The DNS record plugin does not support modification of a record. One
can only add A type addresses to a DNS record or remove the current
ones. To actually change a DNS record value it has to be removed and
then added with a desired value.
This patch adds a new DNS plugin command "dnsrecord-mod" which enables
user to:
- modify a DNS record value (note than DNS record can hold multiple values
and those will be overwritten)
- remove a DNS record when an empty value is passed
New tests for this new command have been added to the CLI test suite.
https://fedorahosted.org/freeipa/ticket/1137
The changes include:
* Change license blobs in source files to mention GPLv3+ not GPLv2 only
* Add GPLv3+ license text
* Package COPYING not LICENSE as the license blobs (even the old ones)
mention COPYING specifically, it is also more common, I think
https://fedorahosted.org/freeipa/ticket/239
- Skip the DNS tests if DNS isn't configured
- Add new attributes to user entries (displayname, cn and initials)
- Make the nsaccountlock value consistent
- Fix the cert subject for cert tests
