1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2009 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 /* Many thanks to Stuart Lynne for contributing the original code for this
9 driver. Further contibutions from Michael Haardt, Brian Candler, Barry
10 Pederson, Peter Savitch and Christian Kellner. Particular thanks to Brian for
11 researching how to handle the different kinds of error. */
15 #include "lf_functions.h"
18 /* Include LDAP headers. The code below uses some "old" LDAP interfaces that
19 are deprecated in OpenLDAP. I don't know their status in other LDAP
20 implementations. LDAP_DEPRECATED causes their prototypes to be defined in
23 #define LDAP_DEPRECATED 1
29 /* Annoyingly, the different LDAP libraries handle errors in different ways,
30 and some other things too. There doesn't seem to be an automatic way of
31 distinguishing between them. Local/Makefile should contain a setting of
32 LDAP_LIB_TYPE, which in turn causes appropriate macros to be defined for the
33 different kinds. Those that matter are:
36 LDAP_LIB_SOLARIS with synonym LDAP_LIB_SOLARIS7
39 These others may be defined, but are in fact the default, so are not tested:
45 #if defined(LDAP_LIB_SOLARIS7) && ! defined(LDAP_LIB_SOLARIS)
46 #define LDAP_LIB_SOLARIS
50 /* Just in case LDAP_NO_LIMIT is not defined by some of these libraries. */
53 #define LDAP_NO_LIMIT 0
57 /* Just in case LDAP_DEREF_NEVER is not defined */
59 #ifndef LDAP_DEREF_NEVER
60 #define LDAP_DEREF_NEVER 0
64 /* Four types of LDAP search are implemented */
66 #define SEARCH_LDAP_MULTIPLE 0 /* Get attributes from multiple entries */
67 #define SEARCH_LDAP_SINGLE 1 /* Get attributes from one entry only */
68 #define SEARCH_LDAP_DN 2 /* Get just the DN from one entry */
69 #define SEARCH_LDAP_AUTH 3 /* Just checking for authentication */
71 /* In all 4 cases, the DN is left in $ldap_dn (which post-dates the
72 SEARCH_LDAP_DN lookup). */
75 /* Structure and anchor for caching connections. */
77 typedef struct ldap_connection
{
78 struct ldap_connection
*next
;
87 static LDAP_CONNECTION
*ldap_connections
= NULL
;
91 /*************************************************
92 * Internal search function *
93 *************************************************/
95 /* This is the function that actually does the work. It is called (indirectly
96 via control_ldap_search) from eldap_find(), eldapauth_find(), eldapdn_find(),
97 and eldapm_find(), with a difference in the "search_type" argument.
99 The case of eldapauth_find() is special in that all it does is do
100 authentication, returning OK or FAIL as appropriate. This isn't used as a
101 lookup. Instead, it is called from expand.c as an expansion condition test.
103 The DN from a successful lookup is placed in $ldap_dn. This feature postdates
104 the provision of the SEARCH_LDAP_DN facility for returning just the DN as the
108 ldap_url the URL to be looked up
109 server server host name, when URL contains none
110 s_port server port, used when URL contains no name
111 search_type SEARCH_LDAP_MULTIPLE allows values from multiple entries
112 SEARCH_LDAP_SINGLE allows values from one entry only
113 SEARCH_LDAP_DN gets the DN from one entry
114 res set to point at the result (not used for ldapauth)
115 errmsg set to point a message if result is not OK
116 defer_break set TRUE if no more servers to be tried after a DEFER
117 user user name for authentication, or NULL
118 password password for authentication, or NULL
119 sizelimit max number of entries returned, or 0 for no limit
120 timelimit max time to wait, or 0 for no limit
121 tcplimit max time for network activity, e.g. connect, or 0 for OS default
122 deference the dereference option, which is one of
123 LDAP_DEREF_{NEVER,SEARCHING,FINDING,ALWAYS}
124 referrals the referral option, which is LDAP_OPT_ON or LDAP_OPT_OFF
126 Returns: OK or FAIL or DEFER
127 FAIL is given only if a lookup was performed successfully, but
132 perform_ldap_search(uschar
*ldap_url
, uschar
*server
, int s_port
, int search_type
,
133 uschar
**res
, uschar
**errmsg
, BOOL
*defer_break
, uschar
*user
, uschar
*password
,
134 int sizelimit
, int timelimit
, int tcplimit
, int dereference
, void *referrals
)
136 LDAPURLDesc
*ludp
= NULL
;
137 LDAPMessage
*result
= NULL
;
139 LDAP_CONNECTION
*lcp
;
141 struct timeval timeout
;
142 struct timeval
*timeoutptr
= NULL
;
153 uschar
*error1
= NULL
; /* string representation of errcode (static) */
154 uschar
*error2
= NULL
; /* error message from the server */
155 uschar
*matched
= NULL
; /* partially matched DN */
158 int error_yield
= DEFER
;
160 int rc
, ldap_rc
, ldap_parse_rc
;
165 BOOL attribute_found
= FALSE
;
169 debug_printf("perform_ldap_search: ldap%s URL = \"%s\" server=%s port=%d "
170 "sizelimit=%d timelimit=%d tcplimit=%d\n",
171 (search_type
== SEARCH_LDAP_MULTIPLE
)? "m" :
172 (search_type
== SEARCH_LDAP_DN
)? "dn" :
173 (search_type
== SEARCH_LDAP_AUTH
)? "auth" : "",
174 ldap_url
, server
, s_port
, sizelimit
, timelimit
, tcplimit
);
176 /* Check if LDAP thinks the URL is a valid LDAP URL. We assume that if the LDAP
177 library that is in use doesn't recognize, say, "ldapi", it will barf here. */
179 if (!ldap_is_ldap_url(CS ldap_url
))
181 *errmsg
= string_sprintf("ldap_is_ldap_url: not an LDAP url \"%s\"\n",
183 goto RETURN_ERROR_BREAK
;
188 if ((rc
= ldap_url_parse(CS ldap_url
, &ludp
)) != 0)
190 *errmsg
= string_sprintf("ldap_url_parse: (error %d) parsing \"%s\"\n", rc
,
192 goto RETURN_ERROR_BREAK
;
195 /* If the host name is empty, take it from the separate argument, if one is
196 given. OpenLDAP 2.0.6 sets an unset hostname to "" rather than empty, but
197 expects NULL later in ldap_init() to mean "default", annoyingly. In OpenLDAP
198 2.0.11 this has changed (it uses NULL). */
200 if ((ludp
->lud_host
== NULL
|| ludp
->lud_host
[0] == 0) && server
!= NULL
)
207 host
= US ludp
->lud_host
;
208 if (host
!= NULL
&& host
[0] == 0) host
= NULL
;
209 port
= ludp
->lud_port
;
212 DEBUG(D_lookup
) debug_printf("after ldap_url_parse: host=%s port=%d\n",
215 if (port
== 0) port
= LDAP_PORT
; /* Default if none given */
216 sprintf(CS porttext
, ":%d", port
); /* For messages */
218 /* If the "host name" is actually a path, we are going to connect using a Unix
219 socket, regardless of whether "ldapi" was actually specified or not. This means
220 that a Unix socket can be declared in eldap_default_servers, and "traditional"
221 LDAP queries using just "ldap" can be used ("ldaps" is similarly overridden).
222 The path may start with "/" or it may already be escaped as "%2F" if it was
223 actually declared that way in eldap_default_servers. (I did it that way the
224 first time.) If the host name is not a path, the use of "ldapi" causes an
225 error, except in the default case. (But lud_scheme doesn't seem to exist in
230 if ((host
[0] == '/' || Ustrncmp(host
, "%2F", 3) == 0))
233 porttext
[0] = 0; /* Remove port from messages */
236 #if defined LDAP_LIB_OPENLDAP2
237 else if (strncmp(ludp
->lud_scheme
, "ldapi", 5) == 0)
239 *errmsg
= string_sprintf("ldapi requires an absolute path (\"%s\" given)",
246 /* Count the attributes; we need this later to tell us how to format results */
248 for (attrp
= USS ludp
->lud_attrs
; attrp
!= NULL
&& *attrp
!= NULL
; attrp
++)
251 /* See if we can find a cached connection to this host. The port is not
252 relevant for ldapi. The host name pointer is set to NULL if no host was given
253 (implying the library default), rather than to the empty string. Note that in
254 this case, there is no difference between ldap and ldapi. */
256 for (lcp
= ldap_connections
; lcp
!= NULL
; lcp
= lcp
->next
)
258 if ((host
== NULL
) != (lcp
->host
== NULL
) ||
259 (host
!= NULL
&& strcmpic(lcp
->host
, host
) != 0))
261 if (ldapi
|| port
== lcp
->port
) break;
264 /* Use this network timeout in any requests. */
268 timeout
.tv_sec
= tcplimit
;
270 timeoutptr
= &timeout
;
273 /* If no cached connection found, we must open a connection to the server. If
274 the server name is actually an absolute path, we set ldapi=TRUE above. This
275 requests connection via a Unix socket. However, as far as I know, only OpenLDAP
276 supports the use of sockets, and the use of ldap_initialize(). */
283 /* --------------------------- OpenLDAP ------------------------ */
285 /* There seems to be a preference under OpenLDAP for ldap_initialize()
286 instead of ldap_init(), though I have as yet been unable to find
287 documentation that says this. (OpenLDAP documentation is sparse to
288 non-existent). So we handle OpenLDAP differently here. Also, support for
289 ldapi seems to be OpenLDAP-only at present. */
291 #ifdef LDAP_LIB_OPENLDAP2
293 /* We now need an empty string for the default host. Get some store in which
294 to build a URL for ldap_initialize(). In the ldapi case, it can't be bigger
295 than (9 + 3*Ustrlen(shost)), whereas in the other cases it can't be bigger
296 than the host name + "ldaps:///" plus : and a port number, say 20 + the
297 length of the host name. What we get should accommodate both, easily. */
299 uschar
*shost
= (host
== NULL
)? US
"" : host
;
300 uschar
*init_url
= store_get(20 + 3 * Ustrlen(shost
));
303 /* Handle connection via Unix socket ("ldapi"). We build a basic LDAP URI to
304 contain the path name, with slashes escaped as %2F. */
309 init_ptr
= init_url
+ 8;
310 Ustrcpy(init_url
, "ldapi://");
311 while ((ch
= *shost
++) != 0)
315 Ustrncpy(init_ptr
, "%2F", 3);
318 else *init_ptr
++ = ch
;
323 /* This is not an ldapi call. Just build a URI with the protocol type, host
328 init_ptr
= Ustrchr(ldap_url
, '/');
329 Ustrncpy(init_url
, ldap_url
, init_ptr
- ldap_url
);
330 init_ptr
= init_url
+ (init_ptr
- ldap_url
);
331 sprintf(CS init_ptr
, "//%s:%d/", shost
, port
);
334 /* Call ldap_initialize() and check the result */
336 DEBUG(D_lookup
) debug_printf("ldap_initialize with URL %s\n", init_url
);
337 rc
= ldap_initialize(&ld
, CS init_url
);
338 if (rc
!= LDAP_SUCCESS
)
340 *errmsg
= string_sprintf("ldap_initialize: (error %d) URL \"%s\"\n",
344 store_reset(init_url
); /* Might as well save memory when we can */
347 /* ------------------------- Not OpenLDAP ---------------------- */
349 /* For libraries other than OpenLDAP, use ldap_init(). */
351 #else /* LDAP_LIB_OPENLDAP2 */
352 ld
= ldap_init(CS host
, port
);
353 #endif /* LDAP_LIB_OPENLDAP2 */
355 /* -------------------------------------------------------------- */
358 /* Handle failure to initialize */
362 *errmsg
= string_sprintf("failed to initialize for LDAP server %s%s - %s",
363 host
, porttext
, strerror(errno
));
367 /* Set the TCP connect time limit if available. This is something that is
368 in Netscape SDK v4.1; I don't know about other libraries. */
370 #ifdef LDAP_X_OPT_CONNECT_TIMEOUT
373 int timeout1000
= tcplimit
*1000;
374 ldap_set_option(ld
, LDAP_X_OPT_CONNECT_TIMEOUT
, (void *)&timeout1000
);
378 int notimeout
= LDAP_X_IO_TIMEOUT_NO_TIMEOUT
;
379 ldap_set_option(ld
, LDAP_X_OPT_CONNECT_TIMEOUT
, (void *)¬imeout
);
383 /* Set the TCP connect timeout. This works with OpenLDAP 2.2.14. */
385 #ifdef LDAP_OPT_NETWORK_TIMEOUT
387 ldap_set_option(ld
, LDAP_OPT_NETWORK_TIMEOUT
, (void *)timeoutptr
);
390 /* I could not get TLS to work until I set the version to 3. That version
391 seems to be the default nowadays. The RFC is dated 1997, so I would hope
392 that all the LDAP libraries support it. Therefore, if eldap_version hasn't
393 been set, go for v3 if we can. */
395 if (eldap_version
< 0)
398 eldap_version
= LDAP_VERSION3
;
404 #ifdef LDAP_OPT_PROTOCOL_VERSION
405 ldap_set_option(ld
, LDAP_OPT_PROTOCOL_VERSION
, (void *)&eldap_version
);
408 DEBUG(D_lookup
) debug_printf("initialized for LDAP (v%d) server %s%s\n",
409 eldap_version
, host
, porttext
);
411 /* If not using ldapi and TLS is available, set appropriate TLS options: hard
412 for "ldaps" and soft otherwise. */
414 #ifdef LDAP_OPT_X_TLS
418 if (strncmp(ludp
->lud_scheme
, "ldaps", 5) == 0)
420 tls_option
= LDAP_OPT_X_TLS_HARD
;
421 DEBUG(D_lookup
) debug_printf("LDAP_OPT_X_TLS_HARD set\n");
425 tls_option
= LDAP_OPT_X_TLS_TRY
;
426 DEBUG(D_lookup
) debug_printf("LDAP_OPT_X_TLS_TRY set\n");
428 ldap_set_option(ld
, LDAP_OPT_X_TLS
, (void *)&tls_option
);
430 #endif /* LDAP_OPT_X_TLS */
432 #ifdef LDAP_OPT_X_TLS_CACERTFILE
433 if (eldap_ca_cert_file
!= NULL
)
435 ldap_set_option(ld
, LDAP_OPT_X_TLS_CACERTFILE
, eldap_ca_cert_file
);
438 #ifdef LDAP_OPT_X_TLS_CACERTDIR
439 if (eldap_ca_cert_dir
!= NULL
)
441 ldap_set_option(ld
, LDAP_OPT_X_TLS_CACERTDIR
, eldap_ca_cert_dir
);
444 #ifdef LDAP_OPT_X_TLS_CERTFILE
445 if (eldap_cert_file
!= NULL
)
447 ldap_set_option(ld
, LDAP_OPT_X_TLS_CERTFILE
, eldap_cert_file
);
450 #ifdef LDAP_OPT_X_TLS_KEYFILE
451 if (eldap_cert_key
!= NULL
)
453 ldap_set_option(ld
, LDAP_OPT_X_TLS_KEYFILE
, eldap_cert_key
);
456 #ifdef LDAP_OPT_X_TLS_CIPHER_SUITE
457 if (eldap_cipher_suite
!= NULL
)
459 ldap_set_option(ld
, LDAP_OPT_X_TLS_CIPHER_SUITE
, eldap_cipher_suite
);
462 #ifdef LDAP_OPT_X_TLS_REQUIRE_CERT
463 if (eldap_require_cert
!= NULL
)
465 int cert_option
= LDAP_OPT_X_TLS_NEVER
;
466 if (Ustrcmp(eldap_require_cert
, "hard") == 0)
468 cert_option
= LDAP_OPT_X_TLS_HARD
;
470 else if (Ustrcmp(eldap_require_cert
, "demand") == 0)
472 cert_option
= LDAP_OPT_X_TLS_DEMAND
;
474 else if (Ustrcmp(eldap_require_cert
, "allow") == 0)
476 cert_option
= LDAP_OPT_X_TLS_ALLOW
;
478 else if (Ustrcmp(eldap_require_cert
, "try") == 0)
480 cert_option
= LDAP_OPT_X_TLS_TRY
;
482 ldap_set_option(ld
, LDAP_OPT_X_TLS_REQUIRE_CERT
, &cert_option
);
486 /* Now add this connection to the chain of cached connections */
488 lcp
= store_get(sizeof(LDAP_CONNECTION
));
489 lcp
->host
= (host
== NULL
)? NULL
: string_copy(host
);
492 lcp
->password
= NULL
;
495 lcp
->next
= ldap_connections
;
496 ldap_connections
= lcp
;
499 /* Found cached connection */
504 debug_printf("re-using cached connection to LDAP server %s%s\n",
508 /* Bind with the user/password supplied, or an anonymous bind if these values
509 are NULL, unless a cached connection is already bound with the same values. */
512 (lcp
->user
== NULL
&& user
!= NULL
) ||
513 (lcp
->user
!= NULL
&& user
== NULL
) ||
514 (lcp
->user
!= NULL
&& user
!= NULL
&& Ustrcmp(lcp
->user
, user
) != 0) ||
515 (lcp
->password
== NULL
&& password
!= NULL
) ||
516 (lcp
->password
!= NULL
&& password
== NULL
) ||
517 (lcp
->password
!= NULL
&& password
!= NULL
&&
518 Ustrcmp(lcp
->password
, password
) != 0))
520 DEBUG(D_lookup
) debug_printf("%sbinding with user=%s password=%s\n",
521 (lcp
->bound
)? "re-" : "", user
, password
);
522 #ifdef LDAP_OPT_X_TLS
523 /* The Oracle LDAP libraries (LDAP_LIB_TYPE=SOLARIS) don't support this: */
526 ldap_start_tls_s(lcp
->ld
, NULL
, NULL
);
529 if ((msgid
= ldap_bind(lcp
->ld
, CS user
, CS password
, LDAP_AUTH_SIMPLE
))
532 *errmsg
= string_sprintf("failed to bind the LDAP connection to server "
533 "%s%s - ldap_bind() returned -1", host
, porttext
);
537 if ((rc
= ldap_result( lcp
->ld
, msgid
, 1, timeoutptr
, &result
)) <= 0)
539 *errmsg
= string_sprintf("failed to bind the LDAP connection to server "
540 "%s%s - LDAP error: %s", host
, porttext
,
541 rc
== -1 ? "result retrieval failed" : "timeout" );
546 rc
= ldap_result2error( lcp
->ld
, result
, 0 );
548 /* Invalid credentials when just checking credentials returns FAIL. This
549 stops any further servers being tried. */
551 if (search_type
== SEARCH_LDAP_AUTH
&& rc
== LDAP_INVALID_CREDENTIALS
)
554 debug_printf("Invalid credentials: ldapauth returns FAIL\n");
556 goto RETURN_ERROR_NOMSG
;
559 /* Otherwise we have a problem that doesn't stop further servers from being
562 if (rc
!= LDAP_SUCCESS
)
564 *errmsg
= string_sprintf("failed to bind the LDAP connection to server "
565 "%s%s - LDAP error %d: %s", host
, porttext
, rc
, ldap_err2string(rc
));
569 /* Successful bind */
572 lcp
->user
= (user
== NULL
)? NULL
: string_copy(user
);
573 lcp
->password
= (password
== NULL
)? NULL
: string_copy(password
);
575 ldap_msgfree(result
);
579 /* If we are just checking credentials, return OK. */
581 if (search_type
== SEARCH_LDAP_AUTH
)
583 DEBUG(D_lookup
) debug_printf("Bind succeeded: ldapauth returns OK\n");
587 /* Before doing the search, set the time and size limits (if given). Here again
588 the different implementations of LDAP have chosen to do things differently. */
590 #if defined(LDAP_OPT_SIZELIMIT)
591 ldap_set_option(lcp
->ld
, LDAP_OPT_SIZELIMIT
, (void *)&sizelimit
);
592 ldap_set_option(lcp
->ld
, LDAP_OPT_TIMELIMIT
, (void *)&timelimit
);
594 lcp
->ld
->ld_sizelimit
= sizelimit
;
595 lcp
->ld
->ld_timelimit
= timelimit
;
598 /* Similarly for dereferencing aliases. Don't know if this is possible on
599 an LDAP library without LDAP_OPT_DEREF. */
601 #if defined(LDAP_OPT_DEREF)
602 ldap_set_option(lcp
->ld
, LDAP_OPT_DEREF
, (void *)&dereference
);
605 /* Similarly for the referral setting; should the library follow referrals that
606 the LDAP server returns? The conditional is just in case someone uses a library
609 #if defined(LDAP_OPT_REFERRALS)
610 ldap_set_option(lcp
->ld
, LDAP_OPT_REFERRALS
, referrals
);
613 /* Start the search on the server. */
615 DEBUG(D_lookup
) debug_printf("Start search\n");
617 msgid
= ldap_search(lcp
->ld
, ludp
->lud_dn
, ludp
->lud_scope
, ludp
->lud_filter
,
622 #if defined LDAP_LIB_SOLARIS || defined LDAP_LIB_OPENLDAP2
624 ldap_get_option(lcp
->ld
, LDAP_OPT_ERROR_NUMBER
, &err
);
625 *errmsg
= string_sprintf("ldap_search failed: %d, %s", err
,
626 ldap_err2string(err
));
629 *errmsg
= string_sprintf("ldap_search failed");
635 /* Loop to pick up results as they come in, setting a timeout if one was
638 while ((rc
= ldap_result(lcp
->ld
, msgid
, 0, timeoutptr
, &result
)) ==
639 LDAP_RES_SEARCH_ENTRY
)
643 DEBUG(D_lookup
) debug_printf("ldap_result loop\n");
645 for(e
= ldap_first_entry(lcp
->ld
, result
);
647 e
= ldap_next_entry(lcp
->ld
, e
))
650 BOOL insert_space
= FALSE
;
652 DEBUG(D_lookup
) debug_printf("LDAP entry loop\n");
654 rescount
++; /* Count results */
656 /* Results for multiple entries values are separated by newlines. */
658 if (data
!= NULL
) data
= string_cat(data
, &size
, &ptr
, US
"\n", 1);
660 /* Get the DN from the last result. */
662 new_dn
= US
ldap_get_dn(lcp
->ld
, e
);
667 #if defined LDAP_LIB_NETSCAPE || defined LDAP_LIB_OPENLDAP2
669 #else /* OPENLDAP 1, UMich, Solaris */
677 /* If the data we want is actually the DN rather than any attribute values,
678 (an "ldapdn" search) add it to the data string. If there are multiple
679 entries, the DNs will be concatenated, but we test for this case below, as
680 for SEARCH_LDAP_SINGLE, and give an error. */
682 if (search_type
== SEARCH_LDAP_DN
) /* Do not amalgamate these into one */
683 { /* condition, because of the else */
684 if (new_dn
!= NULL
) /* below, that's for the first only */
686 data
= string_cat(data
, &size
, &ptr
, new_dn
, Ustrlen(new_dn
));
688 attribute_found
= TRUE
;
692 /* Otherwise, loop through the entry, grabbing attribute values. If there's
693 only one attribute being retrieved, no attribute name is given, and the
694 result is not quoted. Multiple values are separated by (comma, space).
695 If more than one attribute is being retrieved, the data is given as a
696 sequence of name=value pairs, with the value always in quotes. If there are
697 multiple values, they are given within the quotes, comma separated. */
699 else for (attr
= US
ldap_first_attribute(lcp
->ld
, e
, &ber
);
701 attr
= US
ldap_next_attribute(lcp
->ld
, e
, ber
))
705 /* Get array of values for this attribute. */
707 if ((firstval
= values
= USS
ldap_get_values(lcp
->ld
, e
, CS attr
))
713 data
= string_cat(data
, &size
, &ptr
, US
" ", 1);
716 data
= string_cat(data
, &size
, &ptr
, attr
, Ustrlen(attr
));
717 data
= string_cat(data
, &size
, &ptr
, US
"=\"", 2);
720 while (*values
!= NULL
)
722 uschar
*value
= *values
;
723 int len
= Ustrlen(value
);
725 DEBUG(D_lookup
) debug_printf("LDAP attr loop %s:%s\n", attr
, value
);
727 if (values
!= firstval
)
728 data
= string_cat(data
, &size
, &ptr
, US
",", 1);
730 /* For multiple attributes, the data is in quotes. We must escape
731 internal quotes, backslashes, newlines, and must double commas. */
736 for (j
= 0; j
< len
; j
++)
738 if (value
[j
] == '\n')
739 data
= string_cat(data
, &size
, &ptr
, US
"\\n", 2);
740 else if (value
[j
] == ',')
741 data
= string_cat(data
, &size
, &ptr
, US
",,", 2);
744 if (value
[j
] == '\"' || value
[j
] == '\\')
745 data
= string_cat(data
, &size
, &ptr
, US
"\\", 1);
746 data
= string_cat(data
, &size
, &ptr
, value
+j
, 1);
751 /* For single attributes, just double commas */
756 for (j
= 0; j
< len
; j
++)
759 data
= string_cat(data
, &size
, &ptr
, US
",,", 2);
761 data
= string_cat(data
, &size
, &ptr
, value
+j
, 1);
766 /* Move on to the next value */
769 attribute_found
= TRUE
;
772 /* Closing quote at the end of the data for a named attribute. */
775 data
= string_cat(data
, &size
, &ptr
, US
"\"", 1);
777 /* Free the values */
779 ldap_value_free(CSS firstval
);
783 #if defined LDAP_LIB_NETSCAPE || defined LDAP_LIB_OPENLDAP2
785 /* Netscape and OpenLDAP2 LDAP's attrs are dynamically allocated and need
786 to be freed. UMich LDAP stores them in static storage and does not require
791 } /* End "for" loop for extracting attributes from an entry */
792 } /* End "for" loop for extracting entries from a result */
794 /* Free the result */
796 ldap_msgfree(result
);
798 } /* End "while" loop for multiple results */
800 /* Terminate the dynamic string that we have built and reclaim unused store */
805 store_reset(data
+ ptr
+ 1);
808 /* Copy the last dn into eldap_dn */
812 eldap_dn
= string_copy(dn
);
813 #if defined LDAP_LIB_NETSCAPE || defined LDAP_LIB_OPENLDAP2
815 #else /* OPENLDAP 1, UMich, Solaris */
820 DEBUG(D_lookup
) debug_printf("search ended by ldap_result yielding %d\n",rc
);
824 *errmsg
= US
"ldap_result timed out";
828 /* A return code of -1 seems to mean "ldap_result failed internally or couldn't
829 provide you with a message". Other error states seem to exist where
830 ldap_result() didn't give us any message from the server at all, leaving result
831 set to NULL. Apparently, "the error parameters of the LDAP session handle will
832 be set accordingly". That's the best we can do to retrieve an error status; we
833 can't use functions like ldap_result2error because they parse a message from
834 the server, which we didn't get.
836 Annoyingly, the different implementations of LDAP have gone for different
837 methods of handling error codes and generating error messages. */
839 if (rc
== -1 || result
== NULL
)
842 DEBUG(D_lookup
) debug_printf("ldap_result failed\n");
844 #if defined LDAP_LIB_SOLARIS || defined LDAP_LIB_OPENLDAP2
845 ldap_get_option(lcp
->ld
, LDAP_OPT_ERROR_NUMBER
, &err
);
846 *errmsg
= string_sprintf("ldap_result failed: %d, %s",
847 err
, ldap_err2string(err
));
849 #elif defined LDAP_LIB_NETSCAPE
850 /* Dubious (surely 'matched' is spurious here?) */
851 (void)ldap_get_lderrno(lcp
->ld
, &matched
, &error1
);
852 *errmsg
= string_sprintf("ldap_result failed: %s (%s)", error1
, matched
);
854 #else /* UMich LDAP aka OpenLDAP 1.x */
855 *errmsg
= string_sprintf("ldap_result failed: %d, %s",
856 lcp
->ld
->ld_errno
, ldap_err2string(lcp
->ld
->ld_errno
));
862 /* A return code that isn't -1 doesn't necessarily mean there were no problems
863 with the search. The message must be an LDAP_RES_SEARCH_RESULT or
864 LDAP_RES_SEARCH_REFERENCE or else it's something we can't handle. Some versions
865 of LDAP do not define LDAP_RES_SEARCH_REFERENCE (LDAP v1 is one, it seems). So
866 we don't provide that functionality when we can't. :-) */
868 if (rc
!= LDAP_RES_SEARCH_RESULT
869 #ifdef LDAP_RES_SEARCH_REFERENCE
870 && rc
!= LDAP_RES_SEARCH_REFERENCE
874 *errmsg
= string_sprintf("ldap_result returned unexpected code %d", rc
);
878 /* We have a result message from the server. This doesn't yet mean all is well.
879 We need to parse the message to find out exactly what's happened. */
881 #if defined LDAP_LIB_SOLARIS || defined LDAP_LIB_OPENLDAP2
883 ldap_parse_rc
= ldap_parse_result(lcp
->ld
, result
, &rc
, CSS
&matched
,
884 CSS
&error2
, NULL
, NULL
, 0);
885 DEBUG(D_lookup
) debug_printf("ldap_parse_result: %d\n", ldap_parse_rc
);
886 if (ldap_parse_rc
< 0 &&
887 (ldap_parse_rc
!= LDAP_NO_RESULTS_RETURNED
888 #ifdef LDAP_RES_SEARCH_REFERENCE
889 || ldap_rc
!= LDAP_RES_SEARCH_REFERENCE
893 *errmsg
= string_sprintf("ldap_parse_result failed %d", ldap_parse_rc
);
896 error1
= US
ldap_err2string(rc
);
898 #elif defined LDAP_LIB_NETSCAPE
899 /* Dubious (it doesn't reference 'result' at all!) */
900 rc
= ldap_get_lderrno(lcp
->ld
, &matched
, &error1
);
902 #else /* UMich LDAP aka OpenLDAP 1.x */
903 rc
= ldap_result2error(lcp
->ld
, result
, 0);
904 error1
= ldap_err2string(rc
);
905 error2
= lcp
->ld
->ld_error
;
906 matched
= lcp
->ld
->ld_matched
;
909 /* Process the status as follows:
911 (1) If we get LDAP_SIZELIMIT_EXCEEDED, just carry on, to return the
912 truncated result list.
914 (2) If we get LDAP_RES_SEARCH_REFERENCE, also just carry on. This was a
915 submitted patch that is reported to "do the right thing" with Solaris
916 LDAP libraries. (The problem it addresses apparently does not occur with
919 (3) The range of errors defined by LDAP_NAME_ERROR generally mean "that
920 object does not, or cannot, exist in the database". For those cases we
923 (4) All other non-successes here are treated as some kind of problem with
924 the lookup, so return DEFER (which is the default in error_yield).
927 DEBUG(D_lookup
) debug_printf("ldap_parse_result yielded %d: %s\n",
928 rc
, ldap_err2string(rc
));
930 if (rc
!= LDAP_SUCCESS
&& rc
!= LDAP_SIZELIMIT_EXCEEDED
931 #ifdef LDAP_RES_SEARCH_REFERENCE
932 && rc
!= LDAP_RES_SEARCH_REFERENCE
936 *errmsg
= string_sprintf("LDAP search failed - error %d: %s%s%s%s%s",
938 (error1
!= NULL
)? error1
: US
"",
939 (error2
!= NULL
&& error2
[0] != 0)? US
"/" : US
"",
940 (error2
!= NULL
)? error2
: US
"",
941 (matched
!= NULL
&& matched
[0] != 0)? US
"/" : US
"",
942 (matched
!= NULL
)? matched
: US
"");
944 #if defined LDAP_NAME_ERROR
945 if (LDAP_NAME_ERROR(rc
))
946 #elif defined NAME_ERROR /* OPENLDAP1 calls it this */
949 if (rc
== LDAP_NO_SUCH_OBJECT
)
953 DEBUG(D_lookup
) debug_printf("lookup failure forced\n");
959 /* The search succeeded. Check if we have too many results */
961 if (search_type
!= SEARCH_LDAP_MULTIPLE
&& rescount
> 1)
963 *errmsg
= string_sprintf("LDAP search: more than one entry (%d) was returned "
964 "(filter not specific enough?)", rescount
);
965 goto RETURN_ERROR_BREAK
;
968 /* Check if we have too few (zero) entries */
972 *errmsg
= string_sprintf("LDAP search: no results");
974 goto RETURN_ERROR_BREAK
;
977 /* If an entry was found, but it had no attributes, we behave as if no entries
978 were found, that is, the lookup failed. */
980 if (!attribute_found
)
982 *errmsg
= US
"LDAP search: found no attributes";
987 /* Otherwise, it's all worked */
989 DEBUG(D_lookup
) debug_printf("LDAP search: returning: %s\n", data
);
993 if (result
!= NULL
) ldap_msgfree(result
);
994 ldap_free_urldesc(ludp
);
1000 *defer_break
= TRUE
;
1003 DEBUG(D_lookup
) debug_printf("%s\n", *errmsg
);
1006 if (result
!= NULL
) ldap_msgfree(result
);
1007 if (ludp
!= NULL
) ldap_free_urldesc(ludp
);
1009 #if defined LDAP_LIB_OPENLDAP2
1010 if (error2
!= NULL
) ldap_memfree(error2
);
1011 if (matched
!= NULL
) ldap_memfree(matched
);
1019 /*************************************************
1020 * Internal search control function *
1021 *************************************************/
1023 /* This function is called from eldap_find(), eldapauth_find(), eldapdn_find(),
1024 and eldapm_find() with a difference in the "search_type" argument. It controls
1025 calls to perform_ldap_search() which actually does the work. We call that
1026 repeatedly for certain types of defer in the case when the URL contains no host
1027 name and eldap_default_servers is set to a list of servers to try. This gives
1028 more control than just passing over a list of hosts to ldap_open() because it
1029 handles other kinds of defer as well as just a failure to open. Note that the
1030 URL is defined to contain either zero or one "hostport" only.
1032 Parameter data in addition to the URL can be passed as preceding text in the
1033 string, as items of the form XXX=yyy. The URL itself can be detected because it
1034 must begin "ldapx://", where x is empty, s, or i.
1037 ldap_url the URL to be looked up, optionally preceded by other parameter
1039 search_type SEARCH_LDAP_MULTIPLE allows values from multiple entries
1040 SEARCH_LDAP_SINGLE allows values from one entry only
1041 SEARCH_LDAP_DN gets the DN from one entry
1042 res set to point at the result
1043 errmsg set to point a message if result is not OK
1045 Returns: OK or FAIL or DEFER
1049 control_ldap_search(uschar
*ldap_url
, int search_type
, uschar
**res
,
1052 BOOL defer_break
= FALSE
;
1053 int timelimit
= LDAP_NO_LIMIT
;
1054 int sizelimit
= LDAP_NO_LIMIT
;
1057 int dereference
= LDAP_DEREF_NEVER
;
1058 void* referrals
= LDAP_OPT_ON
;
1059 uschar
*url
= ldap_url
;
1061 uschar
*user
= NULL
;
1062 uschar
*password
= NULL
;
1063 uschar
*server
, *list
;
1066 while (isspace(*url
)) url
++;
1068 /* Until the string begins "ldap", search for the other parameter settings that
1069 are recognized. They are of the form NAME=VALUE, with the value being
1070 optionally double-quoted. There must still be a space after it, however. No
1071 NAME has the value "ldap". */
1073 while (strncmpic(url
, US
"ldap", 4) != 0)
1076 while (*url
!= 0 && *url
!= '=') url
++;
1081 namelen
= ++url
- name
;
1082 value
= string_dequote(&url
);
1085 if (strncmpic(name
, US
"USER=", namelen
) == 0) user
= value
;
1086 else if (strncmpic(name
, US
"PASS=", namelen
) == 0) password
= value
;
1087 else if (strncmpic(name
, US
"SIZE=", namelen
) == 0) sizelimit
= Uatoi(value
);
1088 else if (strncmpic(name
, US
"TIME=", namelen
) == 0) timelimit
= Uatoi(value
);
1089 else if (strncmpic(name
, US
"CONNECT=", namelen
) == 0) tcplimit
= Uatoi(value
);
1090 else if (strncmpic(name
, US
"NETTIME=", namelen
) == 0) tcplimit
= Uatoi(value
);
1092 /* Don't know if all LDAP libraries have LDAP_OPT_DEREF */
1094 #ifdef LDAP_OPT_DEREF
1095 else if (strncmpic(name
, US
"DEREFERENCE=", namelen
) == 0)
1097 if (strcmpic(value
, US
"never") == 0) dereference
= LDAP_DEREF_NEVER
;
1098 else if (strcmpic(value
, US
"searching") == 0)
1099 dereference
= LDAP_DEREF_SEARCHING
;
1100 else if (strcmpic(value
, US
"finding") == 0)
1101 dereference
= LDAP_DEREF_FINDING
;
1102 if (strcmpic(value
, US
"always") == 0) dereference
= LDAP_DEREF_ALWAYS
;
1105 else if (strncmpic(name
, US
"DEREFERENCE=", namelen
) == 0)
1107 *errmsg
= string_sprintf("LDAP_OP_DEREF not defined in this LDAP "
1108 "library - cannot use \"dereference\"");
1109 DEBUG(D_lookup
) debug_printf("%s\n", *errmsg
);
1114 #ifdef LDAP_OPT_REFERRALS
1115 else if (strncmpic(name
, US
"REFERRALS=", namelen
) == 0)
1117 if (strcmpic(value
, US
"follow") == 0) referrals
= LDAP_OPT_ON
;
1118 else if (strcmpic(value
, US
"nofollow") == 0) referrals
= LDAP_OPT_OFF
;
1121 *errmsg
= string_sprintf("LDAP option REFERRALS is not \"follow\" "
1123 DEBUG(D_lookup
) debug_printf("%s\n", *errmsg
);
1128 else if (strncmpic(name
, US
"REFERRALS=", namelen
) == 0)
1130 *errmsg
= string_sprintf("LDAP_OP_REFERRALS not defined in this LDAP "
1131 "library - cannot use \"referrals\"");
1132 DEBUG(D_lookup
) debug_printf("%s\n", *errmsg
);
1140 string_sprintf("unknown parameter \"%.*s\" precedes LDAP URL",
1142 DEBUG(D_lookup
) debug_printf("LDAP query error: %s\n", *errmsg
);
1145 while (isspace(*url
)) url
++;
1149 *errmsg
= US
"malformed parameter setting precedes LDAP URL";
1150 DEBUG(D_lookup
) debug_printf("LDAP query error: %s\n", *errmsg
);
1154 /* If user is set, de-URL-quote it. Some LDAP libraries do this for themselves,
1155 but it seems that not all behave like this. The DN for the user is often the
1156 result of ${quote_ldap_dn:...} quoting, which does apply URL quoting, because
1157 that is needed when the DN is used as a base DN in a query. Sigh. This is all
1158 far too complicated. */
1164 for (s
= user
; *s
!= 0; s
++)
1167 if (*s
== '%' && isxdigit(c
=s
[1]) && isxdigit(d
=s
[2]))
1172 (((c
>= 'a')? (10 + c
- 'a') : c
- '0') << 4) |
1173 ((d
>= 'a')? (10 + d
- 'a') : d
- '0');
1182 debug_printf("LDAP parameters: user=%s pass=%s size=%d time=%d connect=%d "
1183 "dereference=%d referrals=%s\n", user
, password
, sizelimit
, timelimit
,
1184 tcplimit
, dereference
, (referrals
== LDAP_OPT_ON
)? "on" : "off");
1186 /* If the request is just to check authentication, some credentials must
1187 be given. The password must not be empty because LDAP binds with an empty
1188 password are considered anonymous, and will succeed on most installations. */
1190 if (search_type
== SEARCH_LDAP_AUTH
)
1192 if (user
== NULL
|| password
== NULL
)
1194 *errmsg
= US
"ldapauth lookups must specify the username and password";
1197 if (password
[0] == 0)
1199 DEBUG(D_lookup
) debug_printf("Empty password: ldapauth returns FAIL\n");
1204 /* Check for valid ldap url starters */
1207 if (tolower(*p
) == 's' || tolower(*p
) == 'i') p
++;
1208 if (Ustrncmp(p
, "://", 3) != 0)
1210 *errmsg
= string_sprintf("LDAP URL does not start with \"ldap://\", "
1211 "\"ldaps://\", or \"ldapi://\" (it starts with \"%.16s...\")", url
);
1212 DEBUG(D_lookup
) debug_printf("LDAP query error: %s\n", *errmsg
);
1216 /* No default servers, or URL contains a server name: just one attempt */
1218 if (eldap_default_servers
== NULL
|| p
[3] != '/')
1220 return perform_ldap_search(url
, NULL
, 0, search_type
, res
, errmsg
,
1221 &defer_break
, user
, password
, sizelimit
, timelimit
, tcplimit
, dereference
,
1225 /* Loop through the default servers until OK or FAIL */
1227 list
= eldap_default_servers
;
1228 while ((server
= string_nextinlist(&list
, &sep
, buffer
, sizeof(buffer
))) != NULL
)
1232 uschar
*colon
= Ustrchr(server
, ':');
1236 port
= Uatoi(colon
+1);
1238 rc
= perform_ldap_search(url
, server
, port
, search_type
, res
, errmsg
,
1239 &defer_break
, user
, password
, sizelimit
, timelimit
, tcplimit
, dereference
,
1241 if (rc
!= DEFER
|| defer_break
) return rc
;
1249 /*************************************************
1250 * Find entry point *
1251 *************************************************/
1253 /* See local README for interface description. The different kinds of search
1254 are handled by a common function, with a flag to differentiate between them.
1255 The handle and filename arguments are not used. */
1258 eldap_find(void *handle
, uschar
*filename
, uschar
*ldap_url
, int length
,
1259 uschar
**result
, uschar
**errmsg
, BOOL
*do_cache
)
1261 /* Keep picky compilers happy */
1262 do_cache
= do_cache
;
1263 return(control_ldap_search(ldap_url
, SEARCH_LDAP_SINGLE
, result
, errmsg
));
1267 eldapm_find(void *handle
, uschar
*filename
, uschar
*ldap_url
, int length
,
1268 uschar
**result
, uschar
**errmsg
, BOOL
*do_cache
)
1270 /* Keep picky compilers happy */
1271 do_cache
= do_cache
;
1272 return(control_ldap_search(ldap_url
, SEARCH_LDAP_MULTIPLE
, result
, errmsg
));
1276 eldapdn_find(void *handle
, uschar
*filename
, uschar
*ldap_url
, int length
,
1277 uschar
**result
, uschar
**errmsg
, BOOL
*do_cache
)
1279 /* Keep picky compilers happy */
1280 do_cache
= do_cache
;
1281 return(control_ldap_search(ldap_url
, SEARCH_LDAP_DN
, result
, errmsg
));
1285 eldapauth_find(void *handle
, uschar
*filename
, uschar
*ldap_url
, int length
,
1286 uschar
**result
, uschar
**errmsg
, BOOL
*do_cache
)
1288 /* Keep picky compilers happy */
1289 do_cache
= do_cache
;
1290 return(control_ldap_search(ldap_url
, SEARCH_LDAP_AUTH
, result
, errmsg
));
1295 /*************************************************
1296 * Open entry point *
1297 *************************************************/
1299 /* See local README for interface description. */
1302 eldap_open(uschar
*filename
, uschar
**errmsg
)
1304 return (void *)(1); /* Just return something non-null */
1309 /*************************************************
1310 * Tidy entry point *
1311 *************************************************/
1313 /* See local README for interface description.
1314 Make sure that eldap_dn does not refer to reclaimed or worse, freed store */
1319 LDAP_CONNECTION
*lcp
= NULL
;
1322 while ((lcp
= ldap_connections
) != NULL
)
1324 DEBUG(D_lookup
) debug_printf("unbind LDAP connection to %s:%d\n", lcp
->host
,
1326 ldap_unbind(lcp
->ld
);
1327 ldap_connections
= lcp
->next
;
1333 /*************************************************
1334 * Quote entry point *
1335 *************************************************/
1337 /* LDAP quoting is unbelievably messy. For a start, two different levels of
1338 quoting have to be done: LDAP quoting, and URL quoting. The current
1339 specification is the result of a suggestion by Brian Candler. It recognizes
1342 (1) For text that appears in a search filter, the following escapes are
1343 required (see RFC 2254):
1351 Then the entire filter text must be URL-escaped. This kind of quoting is
1352 implemented by ${quote_ldap:....}. Note that we can never have a NULL
1353 in the input string, because that's a terminator.
1355 (2) For a DN that is part of a URL (i.e. the base DN), the characters
1359 must be quoted by backslashing. See RFC 2253. Leading and trailing spaces
1360 must be escaped, as must a leading #. Then the string must be URL-quoted.
1361 This type of quoting is implemented by ${quote_ldap_dn:....}.
1363 For URL quoting, the only characters that need not be quoted are the
1368 All the others must be hexified and preceded by %. This includes the
1369 backslashes used for LDAP quoting.
1371 For a DN that is given in the USER parameter for authentication, we need the
1372 same initial quoting as (2) but in this case, the result must NOT be
1373 URL-escaped, because it isn't a URL. The way this is handled is by
1374 de-URL-quoting the text when processing the USER parameter in
1375 control_ldap_search() above. That means that the same quote operator can be
1376 used. This has the additional advantage that spaces in the DN won't cause
1377 parsing problems. For example:
1379 USER=cn=${quote_ldap_dn:$1},%20dc=example,%20dc=com
1381 should be safe if there are spaces in $1.
1385 s the string to be quoted
1386 opt additional option text or NULL if none
1387 only "dn" is recognized
1389 Returns: the processed string or NULL for a bad option
1394 /* The characters in this string, together with alphanumerics, never need
1395 quoting in any way. */
1397 #define ALWAYS_LITERAL "!$'-._"
1399 /* The special characters in this string do not need to be URL-quoted. The set
1400 is a bit larger than the general literals. */
1402 #define URL_NONQUOTE ALWAYS_LITERAL "()*+"
1404 /* The following macros define the characters that are quoted by quote_ldap and
1405 quote_ldap_dn, respectively. */
1407 #define LDAP_QUOTE "*()\\"
1408 #define LDAP_DN_QUOTE ",+\"\\<>;"
1413 eldap_quote(uschar
*s
, uschar
*opt
)
1422 /* Test for a DN quotation. */
1426 if (Ustrcmp(opt
, "dn") != 0) return NULL
; /* No others recognized */
1430 /* Compute how much extra store we need for the string. This doesn't have to be
1431 exact as long as it isn't an underestimate. The worst case is the addition of 5
1432 extra bytes for a single character. This occurs for certain characters in DNs,
1433 where, for example, < turns into %5C%3C. For simplicity, we just add 5 for each
1434 possibly escaped character. The really fast way would be just to test for
1435 non-alphanumerics, but it is probably better to spot a few others that are
1436 never escaped, because if there are no specials at all, we can avoid copying
1439 while ((c
= *t
++) != 0)
1442 if (!isalnum(c
) && Ustrchr(ALWAYS_LITERAL
, c
) == NULL
) count
+= 5;
1444 if (count
== 0) return s
;
1446 /* Get sufficient store to hold the quoted string */
1448 t
= quoted
= store_get(len
+ count
+ 1);
1450 /* Handle plain quote_ldap */
1454 while ((c
= *s
++) != 0)
1458 if (Ustrchr(LDAP_QUOTE
, c
) != NULL
)
1460 sprintf(CS t
, "%%5C%02X", c
); /* e.g. * => %5C2A */
1464 if (Ustrchr(URL_NONQUOTE
, c
) == NULL
) /* e.g. ] => %5D */
1466 sprintf(CS t
, "%%%02X", c
);
1471 *t
++ = c
; /* unquoted character */
1475 /* Handle quote_ldap_dn */
1479 uschar
*ss
= s
+ len
;
1481 /* Find the last char before any trailing spaces */
1483 while (ss
> s
&& ss
[-1] == ' ') ss
--;
1485 /* Quote leading spaces and sharps */
1489 if (*s
!= ' ' && *s
!= '#') break;
1490 sprintf(CS t
, "%%5C%%%02X", *s
);
1494 /* Handle the rest of the string, up to the trailing spaces */
1501 if (Ustrchr(LDAP_DN_QUOTE
, c
) != NULL
)
1503 Ustrncpy(t
, "%5C", 3); /* insert \ where needed */
1504 t
+= 3; /* fall through to check URL */
1506 if (Ustrchr(URL_NONQUOTE
, c
) == NULL
) /* e.g. ] => %5D */
1508 sprintf(CS t
, "%%%02X", c
);
1513 *t
++ = c
; /* unquoted character, or non-URL quoted after %5C */
1516 /* Handle the trailing spaces */
1520 Ustrncpy(t
, "%5C%20", 6);
1525 /* Terminate the new string and return */
1533 /*************************************************
1534 * Version reporting entry point *
1535 *************************************************/
1537 /* See local README for interface description. */
1539 #include "../version.h"
1542 ldap_version_report(FILE *f
)
1545 fprintf(f
, "Library version: LDAP: Exim version %s\n", EXIM_VERSION_STR
);
1550 static lookup_info ldap_lookup_info
= {
1551 US
"ldap", /* lookup name */
1552 lookup_querystyle
, /* query-style lookup */
1553 eldap_open
, /* open function */
1554 NULL
, /* check function */
1555 eldap_find
, /* find function */
1556 NULL
, /* no close function */
1557 eldap_tidy
, /* tidy function */
1558 eldap_quote
, /* quoting function */
1559 ldap_version_report
/* version reporting */
1562 static lookup_info ldapdn_lookup_info
= {
1563 US
"ldapdn", /* lookup name */
1564 lookup_querystyle
, /* query-style lookup */
1565 eldap_open
, /* sic */ /* open function */
1566 NULL
, /* check function */
1567 eldapdn_find
, /* find function */
1568 NULL
, /* no close function */
1569 eldap_tidy
, /* sic */ /* tidy function */
1570 eldap_quote
, /* sic */ /* quoting function */
1571 NULL
/* no version reporting (redundant) */
1574 static lookup_info ldapm_lookup_info
= {
1575 US
"ldapm", /* lookup name */
1576 lookup_querystyle
, /* query-style lookup */
1577 eldap_open
, /* sic */ /* open function */
1578 NULL
, /* check function */
1579 eldapm_find
, /* find function */
1580 NULL
, /* no close function */
1581 eldap_tidy
, /* sic */ /* tidy function */
1582 eldap_quote
, /* sic */ /* quoting function */
1583 NULL
/* no version reporting (redundant) */
1587 #define ldap_lookup_module_info _lookup_module_info
1590 static lookup_info
*_lookup_list
[] = { &ldap_lookup_info
, &ldapdn_lookup_info
, &ldapm_lookup_info
};
1591 lookup_module_info ldap_lookup_module_info
= { LOOKUP_MODULE_INFO_MAGIC
, _lookup_list
, 3 };
1593 /* End of lookups/ldap.c */