This patch adds a session manager and support for caching
authentication in the session. Major elements of the patch are:
* Add a session manager to support cookie based sessions which
stores session data in a memcached entry.
* Add ipalib/krb_utils.py which contains functions to parse ccache
names, format principals, format KRB timestamps, and a KRB_CCache
class which reads ccache entry and allows one to extract information
such as the principal, credentials, credential timestamps, etc.
* Move krb constants defined in ipalib/rpc.py to ipa_krb_utils.py so
that all kerberos items are co-located.
* Modify javascript in ipa.js so that the IPA.command() RPC call
checks for authentication needed error response and if it receives
it sends a GET request to /ipa/login URL to refresh credentials.
* Add session_auth_duration config item to constants.py, used to
configure how long a session remains valid.
* Add parse_time_duration utility to ipalib/util.py. Used to parse the
session_auth_duration config item.
* Update the default.conf.5 man page to document session_auth_duration
config item (also added documentation for log_manager config items
which had been inadvertantly omitted from a previous commit).
* Add SessionError object to ipalib/errors.py
* Move Kerberos protection in Apache config from /ipa to /ipa/xml and
/ipa/login
* Add SessionCCache class to session.py to manage temporary Kerberos
ccache file in effect for the duration of an RPC command.
* Adds a krblogin plugin used to implement the /ipa/login
handler. login handler sets the session expiration time, currently
60 minutes or the expiration of the TGT, whichever is shorter. It
also copies the ccache provied by mod_auth_kerb into the session
data. The json handler will later extract and validate the ccache
belonging to the session.
* Refactored the WSGI handlers so that json and xlmrpc could have
independent behavior, this also moves where create and destroy
context occurs, now done in the individual handler rather than the
parent class.
* The json handler now looks up the session data, validates the ccache
bound to the session, if it's expired replies with authenicated
needed error.
* Add documentation to session.py. Fully documents the entire process,
got questions, read the doc.
* Add exclusions to make-lint as needed.
Machines with hostname 'localhost' or 'localhost.localdomain' are
refused from joining IPA domain and proper error message is shown.
The hostname check is done both in 'ipa-client-install' script and in
'ipa-join'.
https://fedorahosted.org/freeipa/ticket/2112
This is to prevent a Cross-Site Request Forgery (CSRF) attack where
a rogue server tricks a user who was logged into the FreeIPA
management interface into visiting a specially-crafted URL where
the attacker could perform FreeIPA oonfiguration changes with the
privileges of the logged-in user.
https://bugzilla.redhat.com/show_bug.cgi?id=747710
When discovering IPA LDAP servers through DNS records, look through all
servers found until first success. A master might be not available or
denied access but replica may succeed.
Ticket #1827https://fedorahosted.org/freeipa/ticket/1827
In order to check presence of nss_ldap or nss-pam-ldapd when installing
client with '--no-sssd' option there was added code into ipa-client-install.
Checking is based on existence of one of nss_ldap configuration files.
This configuration could be in 'etc/ldap.conf', '/etc/nss_ldap.conf' or
'/etc/libnss_ldap.conf'. Optionaly the nss_ldap could cooperate with
pam_ldap module and hence the presence of it is checked by looking for
'pam_ldap.conf' file. Existence of nss-pam-ldapd is checked against
existence of 'nslcd.conf' file. All this checking is done by function
nssldap_exists(). Because both modules are maintained by two different
functions, the function returns tuple containing return code and dictionary
structure - its key is name of target function and value is list of existing
configuration files. Files to check are specified inside the
nssldap_exists() function. nssldap_exists() also returns True if any of
the mandatory files was found, otherwise returns False.
In order to fit the returned values, the functions
configure_{ldap|nslcd}_conf() were slightly modified. They accept one more
parameter which is list of existing files. They are not checking existence
of above mentioned files anymore.
https://fedorahosted.org/freeipa/ticket/2063
change default_logger_level to debug in configure_standard_logging
add new ipa_log_manager module, move log_mgr there, also export
root_logger from log_mgr.
change all log_manager imports to ipa_log_manager and change
log_manager.root_logger to root_logger.
add missing import for parse_log_level()
ipa-client-install was failing and returning traceback when
wasn't run by root. It was caused by logging initialization that
was taking part before the root privileges check. To correct it,
the check was moved before the logging initialization.
https://fedorahosted.org/freeipa/ticket/2123
Add Kerberos mapping for clients outside of server domain. Otherwise
certmonger had problems issuing the certificate. Also make sure that
client DNS records on the server are set before certmonger is started
and certificate is requested.
Based on Lars Sjostrom patch.
https://fedorahosted.org/freeipa/ticket/2006
Add documentation about --preserve-sssd, an ipa-client-install's option to
honor previously available SSSD configuration in case it is not possible to
merge it cleanly with the new one. In this case ipa-client-install will fail
and ask user to fix SSSD config before continuing.
Additional fix for
https://fedorahosted.org/freeipa/ticket/1750https://fedorahosted.org/freeipa/ticket/1769
Make sure that the hostname IPA uses is a system hostname. If user
passes a non-system hostname, update the network settings and
system hostname in the same way that ipa-client-install does.
This step should prevent various services failures which may not
be ready to talk to IPA with non-system hostname.
https://fedorahosted.org/freeipa/ticket/1931
When certain features are being configured via authconfig, we need to
remember what was configured and what was the state before it so that
during uninstall we restore proper state of the services.
Mostly it affects sssd configuration with multiple domains but also
pre-existing LDAP and krb5 configurations.
This should fix following tickets:
https://fedorahosted.org/freeipa/ticket/1750https://fedorahosted.org/freeipa/ticket/1769
Add a timeout to the wget call to cover a case when autodiscovered
server does not response to our attempt to download ca.crt. Let
user specify a different IPA server in that case.
https://fedorahosted.org/freeipa/ticket/1960
We determine the realm in the client installer so we can deduce
the base dn, pass that into ipa-join so we don't have to hunt for
it.
Re-order the bind so when doing an OTP enrollment so we can use the host
entry to authenticate before we retrieve the subject base, then initiate
the enrollment.
If ipa-join is called without a basedn it will still attempt to
determine it, but it will fail if anonymous binds are not allowed.
https://fedorahosted.org/freeipa/ticket/1935
During ipa-client-install SSSD is not always started up properly for some
reason, things like "getent passwd admin" do not work. This is particulary
true for large setups where admin is included in a large set of groups.
https://fedorahosted.org/freeipa/ticket/1774
When running ipa-client-install on a system whose clock is not in sync
with the master, kinit fails and enrollment is aborted. Manual checking
of current time at the master and adjusting on the client-to-be is then
needed.
The patch tries to fetch SRV records for NTP servers of the domain we aim
to join and runs ntpdate to get time synchronized. If no SRV records are
found, sync with IPA server itself. If that fails, warn that time might
be not in sync with KDC.
https://fedorahosted.org/freeipa/ticket/1773
When getpass.getpass() function is interrupted via CTRL+D, EOFError
exception is thrown. Most of the install tools are not prepared for
this event and crash with this exception. Make sure that it is
handled properly and nice error message is printed.
https://fedorahosted.org/freeipa/ticket/1916
When setting up the client-side NTP configuration, make sure that /etc/ntp/step-tickers
point to IPA NTP server as well.
When restoring the client during ipa-client-install --uninstall, make sure NTP configuration
is fully restored and NTP service is disabled if it was disabled before the installation.
https://fedorahosted.org/freeipa/ticket/1770
When LDAP server contains more that one suffixes, the ipa client
installation does not detect it as IPA server and fails to install.
Fix ipa server discovery so that it correctly searches all naming
contexts for the IPA one.
https://fedorahosted.org/freeipa/ticket/1868
Fix permissions for (configuration) files produced by
ipa-server-install or ipa-client-install. This patch is needed
when root has a umask preventing files from being world readable.
https://fedorahosted.org/freeipa/ticket/1644
There are too many options in ipa-*-install scripts which makes it
difficult to read. This patch adds subsections to install script
online help and man pages to improve readability. No option has
been changed.
To further improve man pages:
1) All man pages were changed to have the same header and top-center
title to provide united look.
2) Few typos in man pages have been fixed
https://fedorahosted.org/freeipa/ticket/1687
If the client installer fails for some reason and --force was not used
then roll back the configuration.
This is needed because we touch /etc/sysconfig/network early in the
configuration and if it fails due to any number of issues (mostly related
to authentication) it will not be reset. We may as well run through the
entire uninstall process to be sure the system has been reset.
https://fedorahosted.org/freeipa/ticket/1704
Do not forget to add new line in updated /etc/sysconfig/network
configuration. Move the actual change of the hostname after the
user confirmation about proceeding with installation. It confused
users when the hostname change occurred before this prompt.
https://fedorahosted.org/freeipa/ticket/1724
Enable GSSAPI credentials delegation in xmlrpc-c/curl to fix client
enrollment. The unconditional GSSAPI was previously dropped from
curl because of CVE-2011-2192.
https://fedorahosted.org/freeipa/ticket/1452
As network configuration file is created as temporary file, it has stricter permissions than
we need for the target system configuration file. Ensure permissions are properly reset before
installing file.
If permissions are not re-set, system may have no networking enabled after reboot.
https://fedorahosted.org/freeipa/ticket/1606
* Check remote LDAP server to see if it is a V2 server
* Replace numeric return values with alphanumeric constants
* Display the error message from the ipa-enrollment extended op
* Remove generic join failed error message when XML-RPC fails
* Don't display Certificate subject base when enrollment fails
* Return proper error message when LDAP bind fails
https://fedorahosted.org/freeipa/ticket/1417
Fixes https://fedorahosted.org/freeipa/ticket/1476
SSSD will need TLS for checking if ipaMigrationEnabled attribute is set
Note that SSSD will force StartTLS because the channel is later used for
authentication as well if password migration is enabled. Thus set the option
unconditionally.
