(root)/mod_ldap/head : /CHANGES (revision 90)

vNEXT:

* Emit correct LDAP timeout in debug message, accounting for the default if

  none was specified. Reported by Nikos Voutsinas <nvoutsin@noc.uoa.gr>.

* Fix segfaults in debug logging on platforms whose printf() does not

  gracefully handle NULL string pointers. (Bug #3346)

* Add support for quota profiles. If a user entry doesn't have an ftpQuota

  attribute, search for the DN contained in the user's ftpQuotaProfileDN

  attribute (if present) and use the ftpQuota attribute present on that DN.

  (Bug #2617)

v2.8.21:

* Implement an internal failover mechanism instead of relying on the LDAP

  SDK's built-in failover (if any). Fixes failover regression introduced

  in v2.8.19 when ldap_initialize() was first used.

* Multiple LDAP URL arguments may now be passed to LDAPServer:

  LDAPServer ldap://127.0.0.1/??sub ldap://172.16.0.1/??sub

* When setting whether to dereference LDAP aliases after connecting to

  the LDAP server, treat failure as a hard failure and refuse to continue

  with that LDAP server. Previously, failure when specifying whether to

  dereference aliases would be logged but the connection to that server

  would continue.

v2.8.20:

* Prevent the use of LDAPSearchScope or LDAPUseSSL when LDAPServer specifies

  a URL. Instead, the desired search scope and SSL setting should be

  specified by the URL.

* When using OpenSSL for local password verification (as opposed to

  'LDAPAuthBinds on'), make the Base64 encoding buffer larger to ensure

  we account for expansion resulting from the encoding.

* Retrieve all LDAP attributes when calling pr_ldap_user_lookup() since

  it will need various attributes (to perform home directory generation,

  for one). Thanks to Nikos Voutsinas <nvoutsin@noc.uoa.gr>.

  http://forums.proftpd.org/smf/index.php/topic,3562.0.html

* Portability fix: don't use ldap_initialize() and ldap_unbind_ext_s()

  unless we're building against the corresponding versions of the OpenLDAP

  SDK.

v2.8.19:

* Fix compilation with old LDAP SDKs (LDAP_API_VERSION < 2000). Thanks to

  Saju Paul <saju.paul@messageway.com>.

* Define LDAP_SCOPE_DEFAULT if not defined by the SDK, fixing compilation

  with (recent?) Sun LDAP headers.

* Use the configured ldap_port in "connected..." debug message, not

  LDAP_PORT.

* Fix segfaults on client connect when an LDAP URL is used as an argument

  to the LDAPServer directive. (Bug #3097)

* Automatically enable LDAP TLS support based on a best guess as to whether

  the installed LDAP SDK supports it.

* Fixed missing ldap_init() -> ldap_initialize() when updating for latest

  LDAP C API. Fixes segfaults on (some?) 64-bit systems. (Bug #3046)

v2.8.18:

* Remove all local caching code in favor of the recently added caching in

  the ProFTPD Auth layer.

* Silence some compiler warnings.

* To verify non-crypt() password hashes locally with OpenSSL, it is no

  longer necessary to edit mod_ldap.c to enable HAVE_OPENSSL. Instead,

  build ProFTPD with the --enable-openssl argument to configure.

v2.8.17:

* Use non-deprecated LDAP API functions if the LDAP SDK is new enough to

  comply with draft-ietf-ldapext-ldap-c-api-04.

v2.8.16:

* Add 'LDAPAliasDereference never|search|find|always' directive, which

  defaults to never. This default is compatible with previous versions,

  which did not support alias dereferencing.

* Fix LDAPAttr support when more than one LDAPAttr directive is used.

* Sync with ProFTPD API: set session.auth_mech to indicate that we've

  successfully authenticated the user.

* Eliminate segfaults when group information for an LDAP user is available

  from other sources (such as mod_auth_unix). Thanks to Erick Briere

  <Erick.Briere@afp.com>.

* Make sure to count %u escapes as well as %v escapes when determining

  filter length.

* Fix parenthesizing in connection code.

v2.8.15:

* Erroneous release; contained 2.8.14 by mistake.

v2.8.14:

* Fix authentication when LDAPAuthBinds is enabled, which broke in 2.8.13.

* Fix a typo in the group-by-name filter.

v2.8.13:

* This release REQUIRES ProFTPD 1.2.11rc1 or later.

* mod_ldap now uses ProFTPD's CreateHome to create home directories. Some

  LDAPHomedirOnDemand directives have been removed in favor of CreateHome.

  The directives that apply to home directory path name generation still

  exist, but have been renamed to LDAPGenerateHomedir.

* The LDAP protocol version now defaults to LDAPv3. If you need to use

  LDAPv2, say 'LDAPProtocolVersion 2' in your proftpd.conf. (Bug #2443)

* LDAP attribute names are now configurable via proftpd.conf. For example,

  if you want to change the uid attribute name, say 'LDAPAttr uid myUidAttr'

  in your proftpd.conf.

* The define to enable TLS support has been renamed to USE_LDAP_TLS.

* The '%u' escape is now supported in all cases where '%v' is.

* ProFTPD's UserPassword directive now works with LDAPAuthBinds enabled.

  (Bug #2482)

* Changed ldap_quota_lookup CMD to a HOOK.

* Fixed a few compiler type warnings.

v2.8.12:

* Group code memory manipulation fixes (Phil Oester (phil at theoesters dot

  com))

* Default quota support

* LDAP connections created for authenticated binds now honor the LDAPUseTLS

  directive.

v2.8.11:

* mod_quotatab limit support

* Allow ATTR_* compiler defines to be overridden on the build command line,

  e.g.: CFLAGS="-DUID_ATTR=foo" ./configure

* The canonical username from the LDAP directory is now used in directory

  creation.

* LDAPForceHomedirOnDemand to force the use of the generated home directory

  instead of the directory provided by the LDAP directory.

* Support for permissions on LDAPHomedirOnDemand suffixes. You can say:

  LDAPHomedirOnDemandSuffix foo:755 bar:700

  in your proftpd.conf.

* Support for %v escapes in LDAPDoAuth directive to allow fetching the

  user's entry directly, without performing a search first. For example,

  LDAPDoAuth on uid=%v,dc=example,dc=com

  will fetch the entry uid=[username],dc=example,dc=com directly when a user

  logs in, saving some effort on the part of the LDAP directory.

* Leading directories are now checked for and creation is no longer

  attempted if they already exist.

* Miscellaneous pedanticism & cleanup in error messages and the code itself.

v2.8.10:

* Ditch ldap_build_filter() (non-portable and/or deprecated) in favor of

  our own translation function. This should make mod_ldap build against

  OpenLDAP 2.1.x and Novell eDirectory, among others.

v2.8.9:

* Added explicit OpenSSL link exception to the license.

v2.8.8:

* ProFTPD Bug 1659 - LDAP config handlers should use c->pool instead of

  permanent_pool

v2.8.7:

* Properly drop root privs in the LDAPHomedirOnDemand code if we're

  returning prematurely due to an error condition.

* Small cleanup of the LDAPHomedirOnDemand directory creation code.

v2.8.6:

* Fix to the user-caching code that now prevents the cache from

  returning an empty password struct in certain situations.

v2.8.5:

* Small fix in the group handlers - group lookups would sometimes be

  attempted even if they were disabled.

v2.8.4:

* Fix for segfaults when optional arguments are omitted from

  LDAPDoGIDLookups directive

v2.8.3:

* Secondary group support (thanks to Andreas Strodl for providing patches)

* LDAPHomedirOnDemand modes are now absolute; they are no longer subject

  to ProFTPD's umask.

* LDAPDefault[UG]ID directives should now support the full range of

  32-bit UIDs.

* Sanity checking is now done on LDAPDefault[UG]ID arguments to ensure

  they're numeric.

* LDAPDoGIDLookups now takes an extra argument. Its arguments are now:

  LDAPDoGIDLookups on|off group-base-dn by-name-filter by-uid-filter

  by-name-filter defaults to (&(cn=%v)(objectclass=posixGroup)) and

  by-uid-filter defaults to (&(gidNumber=%v)(objectclass=posixGroup)).

v2.8.2:

* Fixed a privilege escalation bug. If LDAPHomedirOnDemand is enabled and

  creation of the user's home directory fails, the server does not

  relinquish root privileges. There shouldn't be exploitable, but all

  users with LDAPHomedirOnDemand enabled are encouraged to upgrade.

v2.8.1:

* Fixed a bug that prevented proper permissions being applied to home

  directories created on demand.

* Fixed an issue that would prevent per-VirtualHost configuration directives

  from being properly recognized.

v2.8:

* The username escape sequence in search filter templates has changed.

  You must now use %v instead of %u as the escape for the username. For

  example, if you had:

    LDAPDoAuth on dc=example,dc=com (uid=%u)

  in your proftpd.conf with a previous version of mod_ldap, you will need

  to change this to:

    LDAPDoAuth on dc=example,dc=com (uid=%v)

* LDAPAuthBinds is now enabled by default. I'm sick of hearing "Your

  mod_ldap is broken; it won't talk to my LDAP server and I've ignored the

  convenient error message about userPassword that mod_ldap logs."

* The full path to user home directories is now created. Directories leading

  up to the user's home directory are created root-owned and mode 755 (i.e.,

  they are not subject to the mode argument to LDAPHomedirOnDemand). Home

  directory creation now works for all users, not just users with the same

  UID/GID as the main ProFTPD server. Lastly, the mode argument to

  LDAPHomedirOnDemand is no longer subject to ProFTPD's Umask.

* TLS support (You'll need to edit mod_ldap.c to define USE_LDAPV3_TLS and

  recompile proftpd, then say 'LDAPUseTLS on' in your proftpd.conf). This

  may or may not work with non-OpenLDAP SDKs; I'd love to hear if anyone has

  it working with the Mozilla LDAP SDK or any others.

* The LDAP search sizelimit is now set to prevent LDAP server thrashing with

  wildcarded usernames.

* Basic caching support has been added. This should cut down on the number

  of queries made to the directory server. In addition, negative caching

  is now enabled by default.

* LDAPHomedirOnDemandSuffix can now take multiple arguments (multiple

  directories to create) and can be activated independently of

  LDAPHomedirOnDemand.

* With the addition of LDAPHomedirOnDemandPrefix, home directories can now

  be completely autogenerated, removing the need for a homeDirectory

  attribute in each user's LDAP entry. Say:

    LDAPHomedirOnDemandPrefix /home

  in your proftpd.conf to give users a home directory with the format

  /home/username. In this example, the user joe would be given the home

  directory /home/joe.

* Attribute names are now #defines at the top of mod_ldap.c. You can now

  change attribute names by editing mod_ldap.c and recompiling.

* The LDAPDefaultUID and LDAPDefaultGID directives can now be forced;

  enabling LDAPForceDefaultUID or LDAPForceDefaultGID will apply the

  default UID or GID (respectively) even if a user has a different UID/GID

  in his uidNumber or gidNumber attribute.

* Fairly extensive code cleanup and comment syncing.

v2.7.6:

* Fixing the OpenLDAP 2 fixes.

v2.7.5:

* Fixes for OpenLDAP 2 support.

* Fix LDAP authentication filter use; previously, the user-specified search

  filter would not be used in the second stage of authenticating a user.

v2.7.4:

* The LDAPDefaultAuthScheme directive should function properly now.

v2.7.3:

* Removed some old, useless code.

v2.7.2:

* LDAPQueryTimeout fix. In mod_ldap v2.7.1, in some situations, the query

  timeout could be set to -1, which would cause all LDAP lookups to fail.

v2.7.1:

* Ported MacGyver's portable UID/GID code to mod_ldap

* The value passed to LDAPQueryTimeout is now honored (the timeout isn't

  simply set to 1 second)

v2.7:

* Added a fix for picky LDAP servers like Sun Directory Services; using

  AuthBinds with those LDAP servers would break in previous mod_ldap

  versions.  See the comments in the code for more details (search for "Sun

  Directory Services").

* You can now pass a file mode to LDAPHomedirOnDemand to create home

  directories with that mode.

* Improved group support; mod_ldap now supports multiple memberUid

  attributes for a group object.

* Miscellaneous neatening/tightening of high-level auth/lookup handler

  functions.

* You can now specify custom LDAP search filters at runtime. See the

  configuration guide (doc/Configuration.html) entries for LDAPDo* for more

  details.

* Objectclass is now enforced. You *must* have an objectclass attribute for

  each of your LDAP objects. This attribute must have a value of

  'posixAccount' ("objectclass: posixAccount"). For groups, this attribute

  must have the value 'posixGroup' ("objectclass: posixGroup"). If you wish

  to disable this objectclass enforcement, use the the LDAP filter

  "(uid=%u)" for Auth and UID lookups (see doc/Configuration.html for how to

  specify a custom LDAP search filter).

* Removed allowedServices code. The functionality that allowedServices

  provided can now be duplicated with a modified LDAP search filter.

  For example, to replicate basic allowedServices checking, pass this LDAP

  search filter to LDAPDoAuth:

  (&(uid=%u)(|(allowedServices=*FTP*)(!(allowedService=*))))

  To emulate deniedServices checking, use this search filter:

  (&(uid=%u)(!(deniedServices=*FTP*)))

  To emulate *both* allowedServices and deniedServices checking, use this

  filter (beware line wrap):

  (&(uid=%u)(|(allowedServices=*FTP*)(!(allowedService=*)))(!(deniedServices=*FTP*)))

v2.6.1:

* Fixed a bug that would prevent proper search scope selection.

v2.6:

* HomedirOnDemandSuffix - create an additional subdirectory in a user's home

  directory (/home/user/anotherdirectory) on demand

* Minor group fixes/cleanups - supplementary groups now work properly

* Password {scheme}s are now treated in a case-insensitive manner.

* Password-hash support for any crypto method OpenSSL supports

  To enable extended OpenSSL password hash support, edit mod_ldap.c and

  uncomment #define HAVE_OPENSSL. You'll also need to edit Make.rules to

  link against OpenSSL. Further details are provided in mod_ldap.c.

* Runtime search scope selection; one-level or subtree searches can be

  selected from proftpd.conf.

v2.5.2:

* Fixed a bug that would allow unauthorized users to log in when mod_ldap

  is used with other authentication modules and LDAPAuthBinds is set to on.

v2.5.1:

* Fixed a one-line bug that broke password authentication when AuthBinds

  weren't being used.

v2.5:

* Authenticated bind support added. mod_ldap now fetches all user information

  except for userPassword as the DN specified in LDAPDNInfo and then re-binds

  to the LDAP server as the connecting user with the user-supplied password.

  If the bind succeeds, the user is allowed to log in. This also has the

  added advantage of allowing mod_ldap to support any password encryption

  scheme that your LDAP server supports. Also, a privileged DN is no longer

  needed to read the userPassword attribute from the LDAP server.

* Realized I wasn't checking the return value of find_config() for NULL

  values, this would cause ProFTPD to segfault if certain config file

  entries were not present.

* Removed debugging code that might contain NULL values; passing a NULL

  value to printf() and friends under Solaris causes a segfault.

* Miscellaneous cleanups, code neatening.

v2.0:

* Config file syntax revamped:

   LDAPServer            localhost

   LDAPDNInfo            cn=your-dn,dc=horde,dc=net dnpass

   LDAPQueryTimeout      5

   LDAPDoAuth            on "dc=users,dc=horde,dc=net"

   LDAPDoUIDLookups      on "dc=users,dc=horde,dc=net"

   LDAPDoGIDLookups      on "dc=groups,dc=horde,dc=net"

   LDAPDefaultUID        35000

   LDAPDefaultGID        1000

   LDAPNegativeCache     on

   LDAPHomedirOnDemand   on

   LDAPDefaultAuthScheme clear

* Configurable LDAP query timeout [Peter Deacon <peterd@iea-software.com>]

* Cleartext password "encryption" scheme ("{clear}mypass")

* UID-to-name and GID-to-name lookups in directory listings

* Separate prefixes for user and group lookups

* Can turn on/off UID-to-name and GID-to-name lookups independently

* Default [UG]IDs. Say you want to have a web-toaster type of deal, with

  all users having the same [UG]IDs. Just don't put [ug]idNumber attrs in

  your LDAP database for those users, and set these configuration

  directives. Any user that doesn't have a [UG]ID in the LDAP database will

  have that info filled in with the default [UG]ID.

* mod_ldap is now able to function in a pure virtual-user environment;

  please note, however, that the loginShell LDAP attr still must be a

  valid shell. You can turn this check off by saying RequireValidShell off

  in your proftpd.conf

* allowedServices attr: (I broke with objectclass here, couldn't find

  something that seemed to fit this.) This attribute contains a

  comma-deliminated list of services to allow this particular user.  The

  string "FTP" corresponds to FTP service. If no allowedServices attr is

  present, all services will be allowed.

* You can have alternate LDAP servers; just specify LDAPServer "host1

  host2"; [Peter Deacon <peterd@iea-software.com>]

* LDAPHomedirOnDemand to automatically create home directories in a

  virtual-user environment. [patch: Bert Vermeulen <bert@be.easynet.net>]

* LDAPDefaultAuthScheme to select the authentication scheme to use when

  no {prefix} is present in a user's userPassword LDAP attr.

  [patch: Bert Vermeulen <bert@be.easynet.net>]

* Virtual hosting support may or may not work okay; theoretically, I think

  adding LDAP configuration directives to a <VirtualHost> block will work,

  but this hasn't been tested.

New Tested Platforms:

* Solaris 2.6 with Netscape Directory Server and the Mozilla LDAP C SDK,

  available at http://www.mozilla.org/directory/csdk.html.

  Peter Fabian <fabian@staff.matavnet.hu>

* Solaris 7 with gcc 2.95.1 and OpenLDAP 1.2.7

  Ralf Kruedewagen <Ralf.Kruedewagen@meocom.de>

v1.2:

* made the variables for the config entries static

* moved the meat of the ldap querying code to a separate function, this

  gets the individual getpw*() handlers down to about 15-20 lines each.

  also paves the way for easy LDAP group lookups too.

* explicitly set ld = NULL in p_endpwent(), looks like ldap_unbind()

  doesn't always set it to NULL, and bad things happen later.

* fixed a showstopper: if there's a user/group directive in proftpd.conf,

  mod_ldap:getpwnam() will be called to look up the user. since the

  LDAP config variables aren't initialized yet, the LDAP libraries crash

  and burn upon encountering a NULL ldap_prefix. put some checks in

  p_setpwent() to check for this and disable LDAP lookups before the

  parent forks and the config is initialized. thanks to Sean Murphy

  <smurphy@berbee.com> for sending me on this path.

* modified pw_auth() so that it will assume crypt() if there's no leading

  {scheme} in the password returned by the LDAP query.

* pw_auth() turned off logging of unidentifiable password encryption

  schemes; this would syslog the encrypted password returned by the ldap

  server. many people have their logs tightened, but not all.

* a few miscellaneous changes & cleanups

v1.1:

* Added $Libraries$ directive to mod_ldap so the module is now entirely

  self-contained.

* Changed one reference to sprintf() to snprintf() and changed uidstr

  in p_getpwuid() to have a length of BUFSIZ.

* Added config option (LDAPNegativeCache) to turn LDAP negative caching

  on and off. The default is off (don't do LDAP negative caching).

* Added entries to doc/Configuration.html for all the LDAP configuration

  directives.

* MacGyver added mod_ldap to the ProFTPD CVS tree; proftpd-ldap-1.1

  is now in sync with ProFTPD CVS.

v1.0:

* Initial release of proftpd-ldap