2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2007 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
19 #include <ac/stdlib.h>
21 #include <ac/socket.h>
22 #include <ac/string.h>
31 #include "ldap_defaults.h"
34 struct ldapoptions ldap_int_global_options =
35 { LDAP_UNINITIALIZED, LDAP_DEBUG_NONE };
48 #define ATTR_OPT_INT 9
55 static const struct ol_keyvalue deref_kv[] = {
56 {"never", LDAP_DEREF_NEVER},
57 {"searching", LDAP_DEREF_SEARCHING},
58 {"finding", LDAP_DEREF_FINDING},
59 {"always", LDAP_DEREF_ALWAYS},
63 static const struct ol_attribute {
70 {0, ATTR_OPT_TV, "TIMEOUT", NULL, LDAP_OPT_TIMEOUT},
71 {0, ATTR_OPT_TV, "NETWORK_TIMEOUT", NULL, LDAP_OPT_NETWORK_TIMEOUT},
72 {0, ATTR_OPT_INT, "VERSION", NULL, LDAP_OPT_PROTOCOL_VERSION},
73 {0, ATTR_KV, "DEREF", deref_kv, /* or &deref_kv[0] */
74 offsetof(struct ldapoptions, ldo_deref)},
75 {0, ATTR_INT, "SIZELIMIT", NULL,
76 offsetof(struct ldapoptions, ldo_sizelimit)},
77 {0, ATTR_INT, "TIMELIMIT", NULL,
78 offsetof(struct ldapoptions, ldo_timelimit)},
79 {1, ATTR_STRING, "BINDDN", NULL,
80 offsetof(struct ldapoptions, ldo_defbinddn)},
81 {0, ATTR_STRING, "BASE", NULL,
82 offsetof(struct ldapoptions, ldo_defbase)},
83 {0, ATTR_INT, "PORT", NULL, /* deprecated */
84 offsetof(struct ldapoptions, ldo_defport)},
85 {0, ATTR_OPTION, "HOST", NULL, LDAP_OPT_HOST_NAME}, /* deprecated */
86 {0, ATTR_OPTION, "URI", NULL, LDAP_OPT_URI}, /* replaces HOST/PORT */
87 {0, ATTR_BOOL, "REFERRALS", NULL, LDAP_BOOL_REFERRALS},
89 /* This should only be allowed via ldap_set_option(3) */
90 {0, ATTR_BOOL, "RESTART", NULL, LDAP_BOOL_RESTART},
93 #ifdef HAVE_CYRUS_SASL
94 {0, ATTR_STRING, "SASL_MECH", NULL,
95 offsetof(struct ldapoptions, ldo_def_sasl_mech)},
96 {0, ATTR_STRING, "SASL_REALM", NULL,
97 offsetof(struct ldapoptions, ldo_def_sasl_realm)},
98 {1, ATTR_STRING, "SASL_AUTHCID", NULL,
99 offsetof(struct ldapoptions, ldo_def_sasl_authcid)},
100 {1, ATTR_STRING, "SASL_AUTHZID", NULL,
101 offsetof(struct ldapoptions, ldo_def_sasl_authzid)},
102 {0, ATTR_SASL, "SASL_SECPROPS", NULL, LDAP_OPT_X_SASL_SECPROPS},
106 {1, ATTR_TLS, "TLS_CERT", NULL, LDAP_OPT_X_TLS_CERTFILE},
107 {1, ATTR_TLS, "TLS_KEY", NULL, LDAP_OPT_X_TLS_KEYFILE},
108 {0, ATTR_TLS, "TLS_CACERT", NULL, LDAP_OPT_X_TLS_CACERTFILE},
109 {0, ATTR_TLS, "TLS_CACERTDIR", NULL, LDAP_OPT_X_TLS_CACERTDIR},
110 {0, ATTR_TLS, "TLS_REQCERT", NULL, LDAP_OPT_X_TLS_REQUIRE_CERT},
111 {0, ATTR_TLS, "TLS_RANDFILE", NULL, LDAP_OPT_X_TLS_RANDOM_FILE},
112 {0, ATTR_TLS, "TLS_CIPHER_SUITE", NULL, LDAP_OPT_X_TLS_CIPHER_SUITE},
114 #ifdef HAVE_OPENSSL_CRL
115 {0, ATTR_TLS, "TLS_CRLCHECK", NULL, LDAP_OPT_X_TLS_CRLCHECK},
120 {0, ATTR_NONE, NULL, NULL, 0}
123 #define MAX_LDAP_ATTR_LEN sizeof("TLS_CIPHER_SUITE")
124 #define MAX_LDAP_ENV_PREFIX_LEN 8
126 static void openldap_ldap_init_w_conf(
127 const char *file, int userconf )
129 char linebuf[ AC_LINE_MAX ];
134 struct ldapoptions *gopts;
136 if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
137 return; /* Could not allocate mem for global options */
145 Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0);
147 fp = fopen(file, "r");
149 /* could not open file */
153 Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0);
155 while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
156 /* skip lines starting with '#' */
157 if(*start == '#') continue;
159 /* trim leading white space */
160 while((*start != '\0') && isspace((unsigned char) *start))
164 if(*start == '\0') continue;
166 /* trim trailing white space */
167 end = &start[strlen(start)-1];
168 while(isspace((unsigned char)*end)) end--;
172 if(*start == '\0') continue;
175 /* parse the command */
177 while((*start != '\0') && !isspace((unsigned char)*start)) {
181 /* command has no argument */
187 /* we must have some whitespace to skip */
188 while(isspace((unsigned char)*start)) start++;
191 for(i=0; attrs[i].type != ATTR_NONE; i++) {
194 if( !userconf && attrs[i].useronly ) {
198 if(strcasecmp(cmd, attrs[i].name) != 0) {
202 switch(attrs[i].type) {
204 if((strcasecmp(opt, "on") == 0)
205 || (strcasecmp(opt, "yes") == 0)
206 || (strcasecmp(opt, "true") == 0))
208 LDAP_BOOL_SET(gopts, attrs[i].offset);
211 LDAP_BOOL_CLR(gopts, attrs[i].offset);
219 p = &((char *) gopts)[attrs[i].offset];
220 l = strtol( opt, &next, 10 );
221 if ( next != opt && next[ 0 ] == '\0' ) {
227 const struct ol_keyvalue *kv;
229 for(kv = attrs[i].data;
233 if(strcasecmp(opt, kv->key) == 0) {
234 p = &((char *) gopts)[attrs[i].offset];
235 * (int*) p = kv->value;
242 p = &((char *) gopts)[attrs[i].offset];
243 if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
244 * (char**) p = LDAP_STRDUP(opt);
247 ldap_set_option( NULL, attrs[i].offset, opt );
250 #ifdef HAVE_CYRUS_SASL
251 ldap_int_sasl_config( gopts, attrs[i].offset, opt );
256 ldap_int_tls_config( NULL, attrs[i].offset, opt );
263 tv.tv_sec = strtol( opt, &next, 10 );
264 if ( next != opt && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
265 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
271 l = strtol( opt, &next, 10 );
272 if ( next != opt && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
274 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
286 static void openldap_ldap_init_w_sysconf(const char *file)
288 openldap_ldap_init_w_conf( file, 0 );
291 static void openldap_ldap_init_w_userconf(const char *file)
301 home = getenv("HOME");
304 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n",
306 path = LDAP_MALLOC(strlen(home) + strlen(file) + sizeof( LDAP_DIRSEP "."));
308 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n",
312 if(home != NULL && path != NULL) {
313 /* we assume UNIX path syntax is used... */
316 sprintf(path, "%s" LDAP_DIRSEP "%s", home, file);
317 openldap_ldap_init_w_conf(path, 1);
320 sprintf(path, "%s" LDAP_DIRSEP ".%s", home, file);
321 openldap_ldap_init_w_conf(path, 1);
329 openldap_ldap_init_w_conf(file, 1);
332 static void openldap_ldap_init_w_env(
333 struct ldapoptions *gopts,
336 char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
342 if (prefix == NULL) {
343 prefix = LDAP_ENV_PREFIX;
346 strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
347 buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
350 for(i=0; attrs[i].type != ATTR_NONE; i++) {
351 strcpy(&buf[len], attrs[i].name);
358 switch(attrs[i].type) {
360 if((strcasecmp(value, "on") == 0)
361 || (strcasecmp(value, "yes") == 0)
362 || (strcasecmp(value, "true") == 0))
364 LDAP_BOOL_SET(gopts, attrs[i].offset);
367 LDAP_BOOL_CLR(gopts, attrs[i].offset);
372 p = &((char *) gopts)[attrs[i].offset];
373 * (int*) p = atoi(value);
377 const struct ol_keyvalue *kv;
379 for(kv = attrs[i].data;
383 if(strcasecmp(value, kv->key) == 0) {
384 p = &((char *) gopts)[attrs[i].offset];
385 * (int*) p = kv->value;
392 p = &((char *) gopts)[attrs[i].offset];
393 if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
394 if (*value == '\0') {
397 * (char**) p = LDAP_STRDUP(value);
401 ldap_set_option( NULL, attrs[i].offset, value );
404 #ifdef HAVE_CYRUS_SASL
405 ldap_int_sasl_config( gopts, attrs[i].offset, value );
410 ldap_int_tls_config( NULL, attrs[i].offset, value );
417 #if defined(__GNUC__)
418 /* Declare this function as a destructor so that it will automatically be
419 * invoked either at program exit (if libldap is a static library) or
420 * at unload time (if libldap is a dynamic library).
422 * Sorry, don't know how to handle this for non-GCC environments.
424 static void ldap_int_destroy_global_options(void)
425 __attribute__ ((destructor));
429 ldap_int_destroy_global_options(void)
431 struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT();
436 gopts->ldo_valid = LDAP_UNINITIALIZED;
438 if ( gopts->ldo_defludp ) {
439 ldap_free_urllist( gopts->ldo_defludp );
440 gopts->ldo_defludp = NULL;
442 #if defined(HAVE_WINSOCK) || defined(HAVE_WINSOCK2)
446 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
447 if ( ldap_int_hostname ) {
448 LDAP_FREE( ldap_int_hostname );
449 ldap_int_hostname = NULL;
452 #ifdef HAVE_CYRUS_SASL
453 if ( gopts->ldo_def_sasl_authcid ) {
454 LDAP_FREE( gopts->ldo_def_sasl_authcid );
455 gopts->ldo_def_sasl_authcid = NULL;
459 ldap_int_tls_destroy( gopts );
464 * Initialize the global options structure with default values.
466 void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl )
469 gopts->ldo_debug = *dbglvl;
471 gopts->ldo_debug = 0;
473 gopts->ldo_version = LDAP_VERSION2;
474 gopts->ldo_deref = LDAP_DEREF_NEVER;
475 gopts->ldo_timelimit = LDAP_NO_LIMIT;
476 gopts->ldo_sizelimit = LDAP_NO_LIMIT;
478 gopts->ldo_tm_api.tv_sec = -1;
479 gopts->ldo_tm_net.tv_sec = -1;
481 /* ldo_defludp will be freed by the termination handler
483 ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/");
484 gopts->ldo_defport = LDAP_PORT;
485 #if !defined(__GNUC__) && !defined(PIC)
486 /* Do this only for a static library, and only if we can't
487 * arrange for it to be executed as a library destructor
489 atexit(ldap_int_destroy_global_options);
492 gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
493 gopts->ldo_rebind_proc = NULL;
494 gopts->ldo_rebind_params = NULL;
496 LDAP_BOOL_ZERO(gopts);
498 LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS);
500 #ifdef LDAP_CONNECTIONLESS
501 gopts->ldo_peer = NULL;
502 gopts->ldo_cldapdn = NULL;
503 gopts->ldo_is_udp = 0;
506 #ifdef HAVE_CYRUS_SASL
507 gopts->ldo_def_sasl_mech = NULL;
508 gopts->ldo_def_sasl_realm = NULL;
509 gopts->ldo_def_sasl_authcid = NULL;
510 gopts->ldo_def_sasl_authzid = NULL;
512 memset( &gopts->ldo_sasl_secprops,
513 '\0', sizeof(gopts->ldo_sasl_secprops) );
515 gopts->ldo_sasl_secprops.max_ssf = INT_MAX;
516 gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE;
517 gopts->ldo_sasl_secprops.security_flags =
518 SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
522 gopts->ldo_tls_connect_cb = NULL;
523 gopts->ldo_tls_connect_arg = NULL;
526 gopts->ldo_valid = LDAP_INITIALIZED;
530 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
531 char * ldap_int_hostname = NULL;
534 void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
536 if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
540 ldap_int_error_init();
542 ldap_int_utils_init();
545 { WORD wVersionRequested;
548 wVersionRequested = MAKEWORD( 2, 0 );
549 if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) {
550 /* Tell the user that we couldn't find a usable */
555 /* Confirm that the WinSock DLL supports 2.0.*/
556 /* Note that if the DLL supports versions greater */
557 /* than 2.0 in addition to 2.0, it will still return */
558 /* 2.0 in wVersion since that is the version we */
561 if ( LOBYTE( wsaData.wVersion ) != 2 ||
562 HIBYTE( wsaData.wVersion ) != 0 )
564 /* Tell the user that we couldn't find a usable */
569 } /* The WinSock DLL is acceptable. Proceed. */
572 if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
578 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
580 char *name = ldap_int_hostname;
582 ldap_int_hostname = ldap_pvt_get_fqdn( name );
584 if ( name != NULL && name != ldap_int_hostname ) {
591 if ( ldap_int_tblsize == 0 ) ldap_int_ip_init();
594 ldap_int_initialize_global_options(gopts, NULL);
596 if( getenv("LDAPNOINIT") != NULL ) {
600 #ifdef HAVE_CYRUS_SASL
602 /* set authentication identity to current user name */
603 char *user = getenv("USER");
605 if( user == NULL ) user = getenv("USERNAME");
606 if( user == NULL ) user = getenv("LOGNAME");
609 gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user );
614 openldap_ldap_init_w_sysconf(LDAP_CONF_FILE);
615 openldap_ldap_init_w_userconf(LDAP_USERRC_FILE);
618 char *altfile = getenv(LDAP_ENV_PREFIX "CONF");
620 if( altfile != NULL ) {
621 Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
622 LDAP_ENV_PREFIX "CONF", altfile, 0);
623 openldap_ldap_init_w_sysconf( altfile );
626 Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
627 LDAP_ENV_PREFIX "CONF", 0, 0);
631 char *altfile = getenv(LDAP_ENV_PREFIX "RC");
633 if( altfile != NULL ) {
634 Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
635 LDAP_ENV_PREFIX "RC", altfile, 0);
636 openldap_ldap_init_w_userconf( altfile );
639 Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
640 LDAP_ENV_PREFIX "RC", 0, 0);
643 openldap_ldap_init_w_env(gopts, NULL);