2 * Copyright (c) 1999-2001, 2003, PADL Software Pty Ltd.
3 * Copyright (c) 2004, Andrew Bartlett.
4 * Copyright (c) 2003 - 2008, Kungliga Tekniska Högskolan.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of PADL Software nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 static krb5_error_code LDAP__connect(krb5_context context, HDB *);
45 static krb5_error_code LDAP_close(krb5_context context, HDB *);
47 static krb5_error_code
48 LDAP_message2entry(krb5_context context, HDB * db, LDAPMessage * msg,
49 int flags, hdb_entry_ex * ent);
51 static const char *default_structural_object = "account";
52 static char *structural_object;
53 static krb5_boolean samba_forwardable;
63 #define HDB2LDAP(db) (((struct hdbldapdb *)(db)->hdb_db)->h_lp)
64 #define HDB2MSGID(db) (((struct hdbldapdb *)(db)->hdb_db)->h_msgid)
65 #define HDBSETMSGID(db,msgid) \
66 do { ((struct hdbldapdb *)(db)->hdb_db)->h_msgid = msgid; } while(0)
67 #define HDB2BASE(dn) (((struct hdbldapdb *)(db)->hdb_db)->h_base)
68 #define HDB2URL(dn) (((struct hdbldapdb *)(db)->hdb_db)->h_url)
69 #define HDB2CREATE(db) (((struct hdbldapdb *)(db)->hdb_db)->h_createbase)
75 static char * krb5kdcentry_attrs[] = {
82 "krb5KeyVersionNumber",
102 static char *krb5principal_attrs[] = {
107 "krb5PrincipalRealm",
116 LDAP_no_size_limit(krb5_context context, LDAP *lp)
118 int ret, limit = LDAP_NO_LIMIT;
120 ret = ldap_set_option(lp, LDAP_OPT_SIZELIMIT, (const void *)&limit);
121 if (ret != LDAP_SUCCESS) {
122 krb5_set_error_message(context, HDB_ERR_BADVERSION,
123 "ldap_set_option: %s",
124 ldap_err2string(ret));
125 return HDB_ERR_BADVERSION;
131 check_ldap(krb5_context context, HDB *db, int ret)
136 case LDAP_SERVER_DOWN:
137 LDAP_close(context, db);
144 static krb5_error_code
145 LDAP__setmod(LDAPMod *** modlist, int modop, const char *attribute,
150 if (*modlist == NULL) {
151 *modlist = (LDAPMod **)ber_memcalloc(1, sizeof(LDAPMod *));
152 if (*modlist == NULL)
156 for (cMods = 0; (*modlist)[cMods] != NULL; cMods++) {
157 if ((*modlist)[cMods]->mod_op == modop &&
158 strcasecmp((*modlist)[cMods]->mod_type, attribute) == 0) {
165 if ((*modlist)[cMods] == NULL) {
168 *modlist = (LDAPMod **)ber_memrealloc(*modlist,
169 (cMods + 2) * sizeof(LDAPMod *));
170 if (*modlist == NULL)
173 (*modlist)[cMods] = (LDAPMod *)ber_memalloc(sizeof(LDAPMod));
174 if ((*modlist)[cMods] == NULL)
177 mod = (*modlist)[cMods];
179 mod->mod_type = ber_strdup(attribute);
180 if (mod->mod_type == NULL) {
182 (*modlist)[cMods] = NULL;
186 if (modop & LDAP_MOD_BVALUES) {
187 mod->mod_bvalues = NULL;
189 mod->mod_values = NULL;
192 (*modlist)[cMods + 1] = NULL;
198 static krb5_error_code
199 LDAP_addmod_len(LDAPMod *** modlist, int modop, const char *attribute,
200 unsigned char *value, size_t len)
205 ret = LDAP__setmod(modlist, modop | LDAP_MOD_BVALUES, attribute, &cMods);
212 bv = (*modlist)[cMods]->mod_bvalues;
214 for (i = 0; bv[i] != NULL; i++)
216 bv = ber_memrealloc(bv, (i + 2) * sizeof(*bv));
218 bv = ber_memalloc(2 * sizeof(*bv));
222 (*modlist)[cMods]->mod_bvalues = bv;
224 bv[i] = ber_memalloc(sizeof(**bv));;
228 bv[i]->bv_val = (void *)value;
237 static krb5_error_code
238 LDAP_addmod(LDAPMod *** modlist, int modop, const char *attribute,
244 ret = LDAP__setmod(modlist, modop, attribute, &cMods);
251 bv = (*modlist)[cMods]->mod_values;
253 for (i = 0; bv[i] != NULL; i++)
255 bv = ber_memrealloc(bv, (i + 2) * sizeof(*bv));
257 bv = ber_memalloc(2 * sizeof(*bv));
261 (*modlist)[cMods]->mod_values = bv;
263 bv[i] = ber_strdup(value);
273 static krb5_error_code
274 LDAP_addmod_generalized_time(LDAPMod *** mods, int modop,
275 const char *attribute, KerberosTime * time)
280 /* XXX not threadsafe */
282 strftime(buf, sizeof(buf), "%Y%m%d%H%M%SZ", tm);
284 return LDAP_addmod(mods, modop, attribute, buf);
287 static krb5_error_code
288 LDAP_addmod_integer(krb5_context context,
289 LDAPMod *** mods, int modop,
290 const char *attribute, unsigned long l)
295 ret = asprintf(&buf, "%ld", l);
297 krb5_set_error_message(context, ENOMEM,
298 "asprintf: out of memory:");
301 ret = LDAP_addmod(mods, modop, attribute, buf);
306 static krb5_error_code
307 LDAP_get_string_value(HDB * db, LDAPMessage * entry,
308 const char *attribute, char **ptr)
310 struct berval **vals;
312 vals = ldap_get_values_len(HDB2LDAP(db), entry, attribute);
313 if (vals == NULL || vals[0] == NULL) {
315 return HDB_ERR_NOENTRY;
318 *ptr = malloc(vals[0]->bv_len + 1);
320 ldap_value_free_len(vals);
324 memcpy(*ptr, vals[0]->bv_val, vals[0]->bv_len);
325 (*ptr)[vals[0]->bv_len] = 0;
327 ldap_value_free_len(vals);
332 static krb5_error_code
333 LDAP_get_integer_value(HDB * db, LDAPMessage * entry,
334 const char *attribute, int *ptr)
339 ret = LDAP_get_string_value(db, entry, attribute, &val);
347 static krb5_error_code
348 LDAP_get_generalized_time_value(HDB * db, LDAPMessage * entry,
349 const char *attribute, KerberosTime * kt)
357 ret = LDAP_get_string_value(db, entry, attribute, &gentime);
361 tmp = strptime(gentime, "%Y%m%d%H%M%SZ", &tm);
364 return HDB_ERR_NOENTRY;
375 bervalstrcmp(struct berval *v, const char *str)
377 size_t len = strlen(str);
378 return (v->bv_len == len) && strncasecmp(str, (char *)v->bv_val, len) == 0;
382 static krb5_error_code
383 LDAP_entry2mods(krb5_context context, HDB * db, hdb_entry_ex * ent,
384 LDAPMessage * msg, LDAPMod *** pmods)
387 krb5_boolean is_new_entry;
389 LDAPMod **mods = NULL;
391 unsigned long oflags, nflags;
394 krb5_boolean is_samba_account = FALSE;
395 krb5_boolean is_account = FALSE;
396 krb5_boolean is_heimdal_entry = FALSE;
397 krb5_boolean is_heimdal_principal = FALSE;
399 struct berval **vals;
405 ret = LDAP_message2entry(context, db, msg, 0, &orig);
409 is_new_entry = FALSE;
411 vals = ldap_get_values_len(HDB2LDAP(db), msg, "objectClass");
413 int num_objectclasses = ldap_count_values_len(vals);
414 for (i=0; i < num_objectclasses; i++) {
415 if (bervalstrcmp(vals[i], "sambaSamAccount"))
416 is_samba_account = TRUE;
417 else if (bervalstrcmp(vals[i], structural_object))
419 else if (bervalstrcmp(vals[i], "krb5Principal"))
420 is_heimdal_principal = TRUE;
421 else if (bervalstrcmp(vals[i], "krb5KDCEntry"))
422 is_heimdal_entry = TRUE;
424 ldap_value_free_len(vals);
428 * If this is just a "account" entry and no other objectclass
429 * is hanging on this entry, it's really a new entry.
431 if (is_samba_account == FALSE && is_heimdal_principal == FALSE &&
432 is_heimdal_entry == FALSE) {
433 if (is_account == TRUE) {
436 ret = HDB_ERR_NOENTRY;
445 /* to make it perfectly obvious we're depending on
446 * orig being intiialized to zero */
447 memset(&orig, 0, sizeof(orig));
449 ret = LDAP_addmod(&mods, LDAP_MOD_ADD, "objectClass", "top");
453 /* account is the structural object class */
454 if (is_account == FALSE) {
455 ret = LDAP_addmod(&mods, LDAP_MOD_ADD, "objectClass",
462 ret = LDAP_addmod(&mods, LDAP_MOD_ADD, "objectClass", "krb5Principal");
463 is_heimdal_principal = TRUE;
467 ret = LDAP_addmod(&mods, LDAP_MOD_ADD, "objectClass", "krb5KDCEntry");
468 is_heimdal_entry = TRUE;
474 krb5_principal_compare(context, ent->entry.principal, orig.entry.principal)
477 if (is_heimdal_principal || is_heimdal_entry) {
479 ret = krb5_unparse_name(context, ent->entry.principal, &tmp);
483 ret = LDAP_addmod(&mods, LDAP_MOD_REPLACE,
484 "krb5PrincipalName", tmp);
492 if (is_account || is_samba_account) {
493 ret = krb5_unparse_name_short(context, ent->entry.principal, &tmp);
496 ret = LDAP_addmod(&mods, LDAP_MOD_REPLACE, "uid", tmp);
505 if (is_heimdal_entry && (ent->entry.kvno != orig.entry.kvno || is_new_entry)) {
506 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
507 "krb5KeyVersionNumber",
513 if (is_heimdal_entry && ent->entry.valid_start) {
514 if (orig.entry.valid_end == NULL
515 || (*(ent->entry.valid_start) != *(orig.entry.valid_start))) {
516 ret = LDAP_addmod_generalized_time(&mods, LDAP_MOD_REPLACE,
518 ent->entry.valid_start);
524 if (ent->entry.valid_end) {
525 if (orig.entry.valid_end == NULL || (*(ent->entry.valid_end) != *(orig.entry.valid_end))) {
526 if (is_heimdal_entry) {
527 ret = LDAP_addmod_generalized_time(&mods, LDAP_MOD_REPLACE,
529 ent->entry.valid_end);
533 if (is_samba_account) {
534 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
536 *(ent->entry.valid_end));
543 if (ent->entry.pw_end) {
544 if (orig.entry.pw_end == NULL || (*(ent->entry.pw_end) != *(orig.entry.pw_end))) {
545 if (is_heimdal_entry) {
546 ret = LDAP_addmod_generalized_time(&mods, LDAP_MOD_REPLACE,
553 if (is_samba_account) {
554 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
555 "sambaPwdMustChange",
556 *(ent->entry.pw_end));
564 #if 0 /* we we have last_pw_change */
565 if (is_samba_account && ent->entry.last_pw_change) {
566 if (orig.entry.last_pw_change == NULL || (*(ent->entry.last_pw_change) != *(orig.entry.last_pw_change))) {
567 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
569 *(ent->entry.last_pw_change));
576 if (is_heimdal_entry && ent->entry.max_life) {
577 if (orig.entry.max_life == NULL
578 || (*(ent->entry.max_life) != *(orig.entry.max_life))) {
580 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
582 *(ent->entry.max_life));
588 if (is_heimdal_entry && ent->entry.max_renew) {
589 if (orig.entry.max_renew == NULL
590 || (*(ent->entry.max_renew) != *(orig.entry.max_renew))) {
592 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
594 *(ent->entry.max_renew));
600 oflags = HDBFlags2int(orig.entry.flags);
601 nflags = HDBFlags2int(ent->entry.flags);
603 if (is_heimdal_entry && oflags != nflags) {
605 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
612 /* Remove keys if they exists, and then replace keys. */
613 if (!is_new_entry && orig.entry.keys.len > 0) {
614 vals = ldap_get_values_len(HDB2LDAP(db), msg, "krb5Key");
616 ldap_value_free_len(vals);
618 ret = LDAP_addmod(&mods, LDAP_MOD_DELETE, "krb5Key", NULL);
624 for (i = 0; i < ent->entry.keys.len; i++) {
627 && ent->entry.keys.val[i].key.keytype == ETYPE_ARCFOUR_HMAC_MD5) {
630 time_t now = time(NULL);
632 /* the key might have been 'sealed', but samba passwords
633 are clear in the directory */
634 ret = hdb_unseal_key(context, db, &ent->entry.keys.val[i]);
638 nt = ent->entry.keys.val[i].key.keyvalue.data;
639 /* store in ntPassword, not krb5key */
640 ret = hex_encode(nt, 16, &ntHexPassword);
643 krb5_set_error_message(context, ret, "hdb-ldap: failed to "
647 ret = LDAP_addmod(&mods, LDAP_MOD_REPLACE, "sambaNTPassword",
652 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_REPLACE,
653 "sambaPwdLastSet", now);
657 /* have to kill the LM passwod if it exists */
658 vals = ldap_get_values_len(HDB2LDAP(db), msg, "sambaLMPassword");
660 ldap_value_free_len(vals);
661 ret = LDAP_addmod(&mods, LDAP_MOD_DELETE,
662 "sambaLMPassword", NULL);
667 } else if (is_heimdal_entry) {
669 size_t len, buf_size;
671 ASN1_MALLOC_ENCODE(Key, buf, buf_size, &ent->entry.keys.val[i], &len, ret);
675 krb5_abortx(context, "internal error in ASN.1 encoder");
677 /* addmod_len _owns_ the key, doesn't need to copy it */
678 ret = LDAP_addmod_len(&mods, LDAP_MOD_ADD, "krb5Key", buf, len);
684 if (ent->entry.etypes) {
685 int add_krb5EncryptionType = 0;
688 * Only add/modify krb5EncryptionType if it's a new heimdal
689 * entry or krb5EncryptionType already exists on the entry.
693 vals = ldap_get_values_len(HDB2LDAP(db), msg, "krb5EncryptionType");
695 ldap_value_free_len(vals);
696 ret = LDAP_addmod(&mods, LDAP_MOD_DELETE, "krb5EncryptionType",
700 add_krb5EncryptionType = 1;
702 } else if (is_heimdal_entry)
703 add_krb5EncryptionType = 1;
705 if (add_krb5EncryptionType) {
706 for (i = 0; i < ent->entry.etypes->len; i++) {
707 if (is_samba_account &&
708 ent->entry.keys.val[i].key.keytype == ETYPE_ARCFOUR_HMAC_MD5)
711 } else if (is_heimdal_entry) {
712 ret = LDAP_addmod_integer(context, &mods, LDAP_MOD_ADD,
713 "krb5EncryptionType",
714 ent->entry.etypes->val[i]);
729 else if (mods != NULL) {
730 ldap_mods_free(mods, 1);
735 hdb_free_entry(context, &orig);
740 static krb5_error_code
741 LDAP_dn2principal(krb5_context context, HDB * db, const char *dn,
742 krb5_principal * principal)
746 const char *filter = "(objectClass=krb5Principal)";
747 LDAPMessage *res = NULL, *e;
750 ret = LDAP_no_size_limit(context, HDB2LDAP(db));
754 rc = ldap_search_ext_s(HDB2LDAP(db), dn, LDAP_SCOPE_SUBTREE,
755 filter, krb5principal_attrs, 0,
758 if (check_ldap(context, db, rc)) {
759 ret = HDB_ERR_NOENTRY;
760 krb5_set_error_message(context, ret, "ldap_search_ext_s: "
761 "filter: %s error: %s",
762 filter, ldap_err2string(rc));
766 e = ldap_first_entry(HDB2LDAP(db), res);
768 ret = HDB_ERR_NOENTRY;
772 ret = LDAP_get_string_value(db, e, "krb5PrincipalName", &p);
774 ret = HDB_ERR_NOENTRY;
778 ret = krb5_parse_name(context, p, principal);
789 need_quote(unsigned char c)
800 const static char hexchar[] = "0123456789ABCDEF";
802 static krb5_error_code
803 escape_value(krb5_context context, const unsigned char *unquoted, char **quoted)
807 for (i = 0, len = 0; unquoted[i] != '\0'; i++, len++) {
808 if (need_quote((unsigned char)unquoted[i]))
812 *quoted = malloc(len + 1);
813 if (*quoted == NULL) {
814 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
818 for (i = 0; unquoted[0] ; unquoted++) {
819 if (need_quote((unsigned char *)unquoted[0])) {
820 (*quoted)[i++] = '\\';
821 (*quoted)[i++] = hexchar[(unquoted[0] >> 4) & 0xf];
822 (*quoted)[i++] = hexchar[(unquoted[0] ) & 0xf];
824 (*quoted)[i++] = (char)unquoted[0];
831 static krb5_error_code
832 LDAP__lookup_princ(krb5_context context,
834 const char *princname,
840 char *quote, *filter = NULL;
842 ret = LDAP__connect(context, db);
847 * Quote searches that contain filter language, this quote
848 * searches for *@REALM, which takes very long time.
851 ret = escape_value(context, princname, "e);
855 rc = asprintf(&filter,
856 "(&(objectClass=krb5Principal)(krb5PrincipalName=%s))",
862 krb5_set_error_message(context, ret, "malloc: out of memory");
866 ret = LDAP_no_size_limit(context, HDB2LDAP(db));
870 rc = ldap_search_ext_s(HDB2LDAP(db), HDB2BASE(db),
871 LDAP_SCOPE_SUBTREE, filter,
872 krb5kdcentry_attrs, 0,
875 if (check_ldap(context, db, rc)) {
876 ret = HDB_ERR_NOENTRY;
877 krb5_set_error_message(context, ret, "ldap_search_ext_s: "
878 "filter: %s - error: %s",
879 filter, ldap_err2string(rc));
883 if (userid && ldap_count_entries(HDB2LDAP(db), *msg) == 0) {
889 ret = escape_value(context, userid, "e);
893 rc = asprintf(&filter,
894 "(&(|(objectClass=sambaSamAccount)(objectClass=%s))(uid=%s))",
895 structural_object, quote);
899 krb5_set_error_message(context, ret, "asprintf: out of memory");
903 ret = LDAP_no_size_limit(context, HDB2LDAP(db));
907 rc = ldap_search_ext_s(HDB2LDAP(db), HDB2BASE(db), LDAP_SCOPE_SUBTREE,
908 filter, krb5kdcentry_attrs, 0,
911 if (check_ldap(context, db, rc)) {
912 ret = HDB_ERR_NOENTRY;
913 krb5_set_error_message(context, ret,
914 "ldap_search_ext_s: filter: %s error: %s",
915 filter, ldap_err2string(rc));
929 static krb5_error_code
930 LDAP_principal2message(krb5_context context, HDB * db,
931 krb5_const_principal princ, LDAPMessage ** msg)
933 char *name, *name_short = NULL;
939 ret = krb5_unparse_name(context, princ, &name);
943 ret = krb5_get_default_realms(context, &r0);
948 for (r = r0; *r != NULL; r++) {
949 if(strcmp(krb5_principal_get_realm(context, princ), *r) == 0) {
950 ret = krb5_unparse_name_short(context, princ, &name_short);
952 krb5_free_host_realm(context, r0);
959 krb5_free_host_realm(context, r0);
961 ret = LDAP__lookup_princ(context, db, name, name_short, msg);
969 * Construct an hdb_entry from a directory entry.
971 static krb5_error_code
972 LDAP_message2entry(krb5_context context, HDB * db, LDAPMessage * msg,
973 int flags, hdb_entry_ex * ent)
975 char *unparsed_name = NULL, *dn = NULL, *ntPasswordIN = NULL;
976 char *samba_acct_flags = NULL;
977 struct berval **keys;
978 struct berval **vals;
979 int tmp, tmp_time, i, ret, have_arcfour = 0;
981 memset(ent, 0, sizeof(*ent));
982 ent->entry.flags = int2HDBFlags(0);
984 ret = LDAP_get_string_value(db, msg, "krb5PrincipalName", &unparsed_name);
986 ret = krb5_parse_name(context, unparsed_name, &ent->entry.principal);
990 ret = LDAP_get_string_value(db, msg, "uid",
993 ret = krb5_parse_name(context, unparsed_name, &ent->entry.principal);
997 krb5_set_error_message(context, HDB_ERR_NOENTRY,
998 "hdb-ldap: ldap entry missing"
1000 return HDB_ERR_NOENTRY;
1006 ret = LDAP_get_integer_value(db, msg, "krb5KeyVersionNumber",
1009 ent->entry.kvno = 0;
1011 ent->entry.kvno = integer;
1014 keys = ldap_get_values_len(HDB2LDAP(db), msg, "krb5Key");
1019 ent->entry.keys.len = ldap_count_values_len(keys);
1020 ent->entry.keys.val = (Key *) calloc(ent->entry.keys.len, sizeof(Key));
1021 if (ent->entry.keys.val == NULL) {
1023 krb5_set_error_message(context, ret, "calloc: out of memory");
1026 for (i = 0; i < ent->entry.keys.len; i++) {
1027 decode_Key((unsigned char *) keys[i]->bv_val,
1028 (size_t) keys[i]->bv_len, &ent->entry.keys.val[i], &l);
1034 * This violates the ASN1 but it allows a principal to
1035 * be related to a general directory entry without creating
1036 * the keys. Hopefully it's OK.
1038 ent->entry.keys.len = 0;
1039 ent->entry.keys.val = NULL;
1041 ret = HDB_ERR_NOENTRY;
1046 vals = ldap_get_values_len(HDB2LDAP(db), msg, "krb5EncryptionType");
1050 ent->entry.etypes = malloc(sizeof(*(ent->entry.etypes)));
1051 if (ent->entry.etypes == NULL) {
1053 krb5_set_error_message(context, ret,"malloc: out of memory");
1056 ent->entry.etypes->len = ldap_count_values_len(vals);
1057 ent->entry.etypes->val = calloc(ent->entry.etypes->len, sizeof(int));
1058 if (ent->entry.etypes->val == NULL) {
1060 krb5_set_error_message(context, ret, "malloc: out of memory");
1061 ent->entry.etypes->len = 0;
1064 for (i = 0; i < ent->entry.etypes->len; i++) {
1067 buf = malloc(vals[i]->bv_len + 1);
1070 krb5_set_error_message(context, ret, "malloc: out of memory");
1073 memcpy(buf, vals[i]->bv_val, vals[i]->bv_len);
1074 buf[vals[i]->bv_len] = '\0';
1075 ent->entry.etypes->val[i] = atoi(buf);
1078 ldap_value_free_len(vals);
1081 for (i = 0; i < ent->entry.keys.len; i++) {
1082 if (ent->entry.keys.val[i].key.keytype == ETYPE_ARCFOUR_HMAC_MD5) {
1088 /* manually construct the NT (type 23) key */
1089 ret = LDAP_get_string_value(db, msg, "sambaNTPassword", &ntPasswordIN);
1090 if (ret == 0 && have_arcfour == 0) {
1095 keys = realloc(ent->entry.keys.val,
1096 (ent->entry.keys.len + 1) * sizeof(ent->entry.keys.val[0]));
1100 krb5_set_error_message(context, ret, "malloc: out of memory");
1103 ent->entry.keys.val = keys;
1104 memset(&ent->entry.keys.val[ent->entry.keys.len], 0, sizeof(Key));
1105 ent->entry.keys.val[ent->entry.keys.len].key.keytype = ETYPE_ARCFOUR_HMAC_MD5;
1106 ret = krb5_data_alloc (&ent->entry.keys.val[ent->entry.keys.len].key.keyvalue, 16);
1108 krb5_set_error_message(context, ret, "malloc: out of memory");
1113 ret = hex_decode(ntPasswordIN,
1114 ent->entry.keys.val[ent->entry.keys.len].key.keyvalue.data, 16);
1115 ent->entry.keys.len++;
1117 if (ent->entry.etypes == NULL) {
1118 ent->entry.etypes = malloc(sizeof(*(ent->entry.etypes)));
1119 if (ent->entry.etypes == NULL) {
1121 krb5_set_error_message(context, ret, "malloc: out of memory");
1124 ent->entry.etypes->val = NULL;
1125 ent->entry.etypes->len = 0;
1128 for (i = 0; i < ent->entry.etypes->len; i++)
1129 if (ent->entry.etypes->val[i] == ETYPE_ARCFOUR_HMAC_MD5)
1131 /* If there is no ARCFOUR enctype, add one */
1132 if (i == ent->entry.etypes->len) {
1133 etypes = realloc(ent->entry.etypes->val,
1134 (ent->entry.etypes->len + 1) *
1135 sizeof(ent->entry.etypes->val[0]));
1136 if (etypes == NULL) {
1138 krb5_set_error_message(context, ret, "malloc: out of memory");
1141 ent->entry.etypes->val = etypes;
1142 ent->entry.etypes->val[ent->entry.etypes->len] =
1143 ETYPE_ARCFOUR_HMAC_MD5;
1144 ent->entry.etypes->len++;
1148 ret = LDAP_get_generalized_time_value(db, msg, "createTimestamp",
1149 &ent->entry.created_by.time);
1151 ent->entry.created_by.time = time(NULL);
1153 ent->entry.created_by.principal = NULL;
1155 if (flags & HDB_F_ADMIN_DATA) {
1156 ret = LDAP_get_string_value(db, msg, "creatorsName", &dn);
1158 LDAP_dn2principal(context, db, dn, &ent->entry.created_by.principal);
1162 ent->entry.modified_by = calloc(1, sizeof(*ent->entry.modified_by));
1163 if (ent->entry.modified_by == NULL) {
1165 krb5_set_error_message(context, ret, "malloc: out of memory");
1169 ret = LDAP_get_generalized_time_value(db, msg, "modifyTimestamp",
1170 &ent->entry.modified_by->time);
1172 ret = LDAP_get_string_value(db, msg, "modifiersName", &dn);
1174 LDAP_dn2principal(context, db, dn, &ent->entry.modified_by->principal);
1177 free(ent->entry.modified_by);
1178 ent->entry.modified_by = NULL;
1183 ent->entry.valid_start = malloc(sizeof(*ent->entry.valid_start));
1184 if (ent->entry.valid_start == NULL) {
1186 krb5_set_error_message(context, ret, "malloc: out of memory");
1189 ret = LDAP_get_generalized_time_value(db, msg, "krb5ValidStart",
1190 ent->entry.valid_start);
1193 free(ent->entry.valid_start);
1194 ent->entry.valid_start = NULL;
1197 ent->entry.valid_end = malloc(sizeof(*ent->entry.valid_end));
1198 if (ent->entry.valid_end == NULL) {
1200 krb5_set_error_message(context, ret, "malloc: out of memory");
1203 ret = LDAP_get_generalized_time_value(db, msg, "krb5ValidEnd",
1204 ent->entry.valid_end);
1207 free(ent->entry.valid_end);
1208 ent->entry.valid_end = NULL;
1211 ret = LDAP_get_integer_value(db, msg, "sambaKickoffTime", &tmp_time);
1213 if (ent->entry.valid_end == NULL) {
1214 ent->entry.valid_end = malloc(sizeof(*ent->entry.valid_end));
1215 if (ent->entry.valid_end == NULL) {
1217 krb5_set_error_message(context, ret, "malloc: out of memory");
1221 *ent->entry.valid_end = tmp_time;
1224 ent->entry.pw_end = malloc(sizeof(*ent->entry.pw_end));
1225 if (ent->entry.pw_end == NULL) {
1227 krb5_set_error_message(context, ret, "malloc: out of memory");
1230 ret = LDAP_get_generalized_time_value(db, msg, "krb5PasswordEnd",
1234 free(ent->entry.pw_end);
1235 ent->entry.pw_end = NULL;
1238 ret = LDAP_get_integer_value(db, msg, "sambaPwdLastSet", &tmp_time);
1242 if (ent->entry.pw_end == NULL) {
1243 ent->entry.pw_end = malloc(sizeof(*ent->entry.pw_end));
1244 if (ent->entry.pw_end == NULL) {
1246 krb5_set_error_message(context, ret, "malloc: out of memory");
1251 delta = krb5_config_get_time_default(context, NULL,
1254 "password_lifetime",
1256 *ent->entry.pw_end = tmp_time + delta;
1259 ret = LDAP_get_integer_value(db, msg, "sambaPwdMustChange", &tmp_time);
1261 if (ent->entry.pw_end == NULL) {
1262 ent->entry.pw_end = malloc(sizeof(*ent->entry.pw_end));
1263 if (ent->entry.pw_end == NULL) {
1265 krb5_set_error_message(context, ret, "malloc: out of memory");
1269 *ent->entry.pw_end = tmp_time;
1273 ret = LDAP_get_integer_value(db, msg, "sambaPwdLastSet", &tmp_time);
1275 hdb_entry_set_pw_change_time(context, &ent->entry, tmp_time);
1280 ent->entry.max_life = malloc(sizeof(*ent->entry.max_life));
1281 if (ent->entry.max_life == NULL) {
1283 krb5_set_error_message(context, ret, "malloc: out of memory");
1286 ret = LDAP_get_integer_value(db, msg, "krb5MaxLife", &max_life);
1288 free(ent->entry.max_life);
1289 ent->entry.max_life = NULL;
1291 *ent->entry.max_life = max_life;
1297 ent->entry.max_renew = malloc(sizeof(*ent->entry.max_renew));
1298 if (ent->entry.max_renew == NULL) {
1300 krb5_set_error_message(context, ret, "malloc: out of memory");
1303 ret = LDAP_get_integer_value(db, msg, "krb5MaxRenew", &max_renew);
1305 free(ent->entry.max_renew);
1306 ent->entry.max_renew = NULL;
1308 *ent->entry.max_renew = max_renew;
1311 ret = LDAP_get_integer_value(db, msg, "krb5KDCFlags", &tmp);
1315 ent->entry.flags = int2HDBFlags(tmp);
1317 /* Try and find Samba flags to put into the mix */
1318 ret = LDAP_get_string_value(db, msg, "sambaAcctFlags", &samba_acct_flags);
1320 /* parse the [UXW...] string:
1324 'H' Homedir required
1326 'U' User account (normal)
1327 'M' MNS logon user account - what is this ?
1328 'W' Workstation account
1331 'X' No Xpiry on password
1332 'I' Interdomain trust account
1337 int flags_len = strlen(samba_acct_flags);
1342 if (samba_acct_flags[0] != '['
1343 || samba_acct_flags[flags_len - 1] != ']')
1346 /* Allow forwarding */
1347 if (samba_forwardable)
1348 ent->entry.flags.forwardable = TRUE;
1350 for (i=0; i < flags_len; i++) {
1351 switch (samba_acct_flags[i]) {
1357 /* how to handle no password in kerberos? */
1360 ent->entry.flags.invalid = TRUE;
1365 /* temp duplicate */
1366 ent->entry.flags.invalid = TRUE;
1369 ent->entry.flags.client = TRUE;
1375 ent->entry.flags.server = TRUE;
1376 ent->entry.flags.client = TRUE;
1379 ent->entry.flags.invalid = TRUE;
1382 if (ent->entry.pw_end) {
1383 free(ent->entry.pw_end);
1384 ent->entry.pw_end = NULL;
1388 ent->entry.flags.server = TRUE;
1389 ent->entry.flags.client = TRUE;
1394 free(samba_acct_flags);
1401 free(unparsed_name);
1404 hdb_free_entry(context, ent);
1409 static krb5_error_code
1410 LDAP_close(krb5_context context, HDB * db)
1413 ldap_unbind_ext(HDB2LDAP(db), NULL, NULL);
1414 ((struct hdbldapdb *)db->hdb_db)->h_lp = NULL;
1420 static krb5_error_code
1421 LDAP_lock(krb5_context context, HDB * db, int operation)
1426 static krb5_error_code
1427 LDAP_unlock(krb5_context context, HDB * db)
1432 static krb5_error_code
1433 LDAP_seq(krb5_context context, HDB * db, unsigned flags, hdb_entry_ex * entry)
1435 int msgid, rc, parserc;
1436 krb5_error_code ret;
1439 msgid = HDB2MSGID(db);
1441 return HDB_ERR_NOENTRY;
1444 rc = ldap_result(HDB2LDAP(db), msgid, LDAP_MSG_ONE, NULL, &e);
1446 case LDAP_RES_SEARCH_REFERENCE:
1450 case LDAP_RES_SEARCH_ENTRY:
1451 /* We have an entry. Parse it. */
1452 ret = LDAP_message2entry(context, db, e, flags, entry);
1455 case LDAP_RES_SEARCH_RESULT:
1456 /* We're probably at the end of the results. If not, abandon. */
1458 ldap_parse_result(HDB2LDAP(db), e, NULL, NULL, NULL,
1460 ret = HDB_ERR_NOENTRY;
1461 if (parserc != LDAP_SUCCESS
1462 && parserc != LDAP_MORE_RESULTS_TO_RETURN) {
1463 krb5_set_error_message(context, ret, "ldap_parse_result: %s",
1464 ldap_err2string(parserc));
1465 ldap_abandon_ext(HDB2LDAP(db), msgid, NULL, NULL);
1467 HDBSETMSGID(db, -1);
1469 case LDAP_SERVER_DOWN:
1471 LDAP_close(context, db);
1472 HDBSETMSGID(db, -1);
1476 /* Some unspecified error (timeout?). Abandon. */
1478 ldap_abandon_ext(HDB2LDAP(db), msgid, NULL, NULL);
1479 ret = HDB_ERR_NOENTRY;
1480 HDBSETMSGID(db, -1);
1483 } while (rc == LDAP_RES_SEARCH_REFERENCE);
1486 if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) {
1487 ret = hdb_unseal_keys(context, db, &entry->entry);
1489 hdb_free_entry(context, entry);
1496 static krb5_error_code
1497 LDAP_firstkey(krb5_context context, HDB *db, unsigned flags,
1498 hdb_entry_ex *entry)
1500 krb5_error_code ret;
1503 ret = LDAP__connect(context, db);
1507 ret = LDAP_no_size_limit(context, HDB2LDAP(db));
1511 ret = ldap_search_ext(HDB2LDAP(db), HDB2BASE(db),
1513 "(|(objectClass=krb5Principal)(objectClass=sambaSamAccount))",
1514 krb5kdcentry_attrs, 0,
1515 NULL, NULL, NULL, 0, &msgid);
1517 return HDB_ERR_NOENTRY;
1519 HDBSETMSGID(db, msgid);
1521 return LDAP_seq(context, db, flags, entry);
1524 static krb5_error_code
1525 LDAP_nextkey(krb5_context context, HDB * db, unsigned flags,
1526 hdb_entry_ex * entry)
1528 return LDAP_seq(context, db, flags, entry);
1531 static krb5_error_code
1532 LDAP__connect(krb5_context context, HDB * db)
1534 int rc, version = LDAP_VERSION3;
1536 * Empty credentials to do a SASL bind with LDAP. Note that empty
1537 * different from NULL credentials. If you provide NULL
1538 * credentials instead of empty credentials you will get a SASL
1539 * bind in progress message.
1541 struct berval bv = { 0, "" };
1544 /* connection has been opened. ping server. */
1545 struct sockaddr_un addr;
1546 socklen_t len = sizeof(addr);
1549 if (ldap_get_option(HDB2LDAP(db), LDAP_OPT_DESC, &sd) == 0 &&
1550 getpeername(sd, (struct sockaddr *) &addr, &len) < 0) {
1551 /* the other end has died. reopen. */
1552 LDAP_close(context, db);
1556 if (HDB2LDAP(db) != NULL) /* server is UP */
1559 rc = ldap_initialize(&((struct hdbldapdb *)db->hdb_db)->h_lp, HDB2URL(db));
1560 if (rc != LDAP_SUCCESS) {
1561 krb5_set_error_message(context, HDB_ERR_NOENTRY, "ldap_initialize: %s",
1562 ldap_err2string(rc));
1563 return HDB_ERR_NOENTRY;
1566 rc = ldap_set_option(HDB2LDAP(db), LDAP_OPT_PROTOCOL_VERSION,
1567 (const void *)&version);
1568 if (rc != LDAP_SUCCESS) {
1569 krb5_set_error_message(context, HDB_ERR_BADVERSION,
1570 "ldap_set_option: %s", ldap_err2string(rc));
1571 LDAP_close(context, db);
1572 return HDB_ERR_BADVERSION;
1575 rc = ldap_sasl_bind_s(HDB2LDAP(db), NULL, "EXTERNAL", &bv,
1577 if (rc != LDAP_SUCCESS) {
1578 krb5_set_error_message(context, HDB_ERR_BADVERSION,
1579 "ldap_sasl_bind_s: %s", ldap_err2string(rc));
1580 LDAP_close(context, db);
1581 return HDB_ERR_BADVERSION;
1587 static krb5_error_code
1588 LDAP_open(krb5_context context, HDB * db, int flags, mode_t mode)
1590 /* Not the right place for this. */
1591 #ifdef HAVE_SIGACTION
1592 struct sigaction sa;
1595 sa.sa_handler = SIG_IGN;
1596 sigemptyset(&sa.sa_mask);
1598 sigaction(SIGPIPE, &sa, NULL);
1600 signal(SIGPIPE, SIG_IGN);
1601 #endif /* HAVE_SIGACTION */
1603 return LDAP__connect(context, db);
1606 static krb5_error_code
1607 LDAP_fetch_kvno(krb5_context context, HDB * db, krb5_const_principal principal,
1608 unsigned flags, krb5_kvno kvno, hdb_entry_ex * entry)
1610 LDAPMessage *msg, *e;
1611 krb5_error_code ret;
1613 ret = LDAP_principal2message(context, db, principal, &msg);
1617 e = ldap_first_entry(HDB2LDAP(db), msg);
1619 ret = HDB_ERR_NOENTRY;
1623 ret = LDAP_message2entry(context, db, e, flags, entry);
1625 if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) {
1626 ret = hdb_unseal_keys(context, db, &entry->entry);
1628 hdb_free_entry(context, entry);
1638 static krb5_error_code
1639 LDAP_fetch(krb5_context context, HDB * db, krb5_const_principal principal,
1640 unsigned flags, hdb_entry_ex * entry)
1642 return LDAP_fetch_kvno(context, db, principal,
1643 flags & (~HDB_F_KVNO_SPECIFIED), 0, entry);
1646 static krb5_error_code
1647 LDAP_store(krb5_context context, HDB * db, unsigned flags,
1648 hdb_entry_ex * entry)
1650 LDAPMod **mods = NULL;
1651 krb5_error_code ret;
1654 LDAPMessage *msg = NULL, *e = NULL;
1655 char *dn = NULL, *name = NULL;
1657 ret = LDAP_principal2message(context, db, entry->entry.principal, &msg);
1659 e = ldap_first_entry(HDB2LDAP(db), msg);
1661 ret = krb5_unparse_name(context, entry->entry.principal, &name);
1667 ret = hdb_seal_keys(context, db, &entry->entry);
1671 /* turn new entry into LDAPMod array */
1672 ret = LDAP_entry2mods(context, db, entry, e, &mods);
1677 ret = asprintf(&dn, "krb5PrincipalName=%s,%s", name, HDB2CREATE(db));
1680 krb5_set_error_message(context, ret, "asprintf: out of memory");
1683 } else if (flags & HDB_F_REPLACE) {
1684 /* Entry exists, and we're allowed to replace it. */
1685 dn = ldap_get_dn(HDB2LDAP(db), e);
1687 /* Entry exists, but we're not allowed to replace it. Bail. */
1688 ret = HDB_ERR_EXISTS;
1692 /* write entry into directory */
1694 /* didn't exist before */
1695 rc = ldap_add_ext_s(HDB2LDAP(db), dn, mods, NULL, NULL );
1696 errfn = "ldap_add_ext_s";
1698 /* already existed, send deltas only */
1699 rc = ldap_modify_ext_s(HDB2LDAP(db), dn, mods, NULL, NULL );
1700 errfn = "ldap_modify_ext_s";
1703 if (check_ldap(context, db, rc)) {
1704 char *ld_error = NULL;
1705 ldap_get_option(HDB2LDAP(db), LDAP_OPT_ERROR_STRING,
1707 ret = HDB_ERR_CANT_LOCK_DB;
1708 krb5_set_error_message(context, ret, "%s: %s (DN=%s) %s: %s",
1709 errfn, name, dn, ldap_err2string(rc), ld_error);
1720 ldap_mods_free(mods, 1);
1727 static krb5_error_code
1728 LDAP_remove(krb5_context context, HDB *db, krb5_const_principal principal)
1730 krb5_error_code ret;
1731 LDAPMessage *msg, *e;
1733 int rc, limit = LDAP_NO_LIMIT;
1735 ret = LDAP_principal2message(context, db, principal, &msg);
1739 e = ldap_first_entry(HDB2LDAP(db), msg);
1741 ret = HDB_ERR_NOENTRY;
1745 dn = ldap_get_dn(HDB2LDAP(db), e);
1747 ret = HDB_ERR_NOENTRY;
1751 rc = ldap_set_option(HDB2LDAP(db), LDAP_OPT_SIZELIMIT, (const void *)&limit);
1752 if (rc != LDAP_SUCCESS) {
1753 ret = HDB_ERR_BADVERSION;
1754 krb5_set_error_message(context, ret, "ldap_set_option: %s",
1755 ldap_err2string(rc));
1759 rc = ldap_delete_ext_s(HDB2LDAP(db), dn, NULL, NULL );
1760 if (check_ldap(context, db, rc)) {
1761 ret = HDB_ERR_CANT_LOCK_DB;
1762 krb5_set_error_message(context, ret, "ldap_delete_ext_s: %s",
1763 ldap_err2string(rc));
1776 static krb5_error_code
1777 LDAP_destroy(krb5_context context, HDB * db)
1779 krb5_error_code ret;
1781 LDAP_close(context, db);
1783 ret = hdb_clear_master_key(context, db);
1787 free(HDB2CREATE(db));
1798 static krb5_error_code
1799 hdb_ldap_common(krb5_context context,
1801 const char *search_base,
1804 struct hdbldapdb *h;
1805 const char *create_base = NULL;
1807 if (search_base == NULL && search_base[0] == '\0') {
1808 krb5_set_error_message(context, ENOMEM, "ldap search base not configured");
1809 return ENOMEM; /* XXX */
1812 if (structural_object == NULL) {
1815 p = krb5_config_get_string(context, NULL, "kdc",
1816 "hdb-ldap-structural-object", NULL);
1818 p = default_structural_object;
1819 structural_object = strdup(p);
1820 if (structural_object == NULL) {
1821 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
1827 krb5_config_get_bool_default(context, NULL, TRUE,
1828 "kdc", "hdb-samba-forwardable", NULL);
1830 *db = calloc(1, sizeof(**db));
1832 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
1835 memset(*db, 0, sizeof(**db));
1837 h = calloc(1, sizeof(*h));
1841 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
1847 if (asprintf(&(*db)->hdb_name, "ldap:%s", search_base) == -1) {
1848 LDAP_destroy(context, *db);
1850 krb5_set_error_message(context, ENOMEM, "strdup: out of memory");
1854 h->h_url = strdup(url);
1855 h->h_base = strdup(search_base);
1856 if (h->h_url == NULL || h->h_base == NULL) {
1857 LDAP_destroy(context, *db);
1859 krb5_set_error_message(context, ENOMEM, "strdup: out of memory");
1863 create_base = krb5_config_get_string(context, NULL, "kdc",
1864 "hdb-ldap-create-base", NULL);
1865 if (create_base == NULL)
1866 create_base = h->h_base;
1868 h->h_createbase = strdup(create_base);
1869 if (h->h_createbase == NULL) {
1870 LDAP_destroy(context, *db);
1872 krb5_set_error_message(context, ENOMEM, "strdup: out of memory");
1876 (*db)->hdb_master_key_set = 0;
1877 (*db)->hdb_openp = 0;
1878 (*db)->hdb_capability_flags = 0;
1879 (*db)->hdb_open = LDAP_open;
1880 (*db)->hdb_close = LDAP_close;
1881 (*db)->hdb_fetch_kvno = LDAP_fetch_kvno;
1882 (*db)->hdb_store = LDAP_store;
1883 (*db)->hdb_remove = LDAP_remove;
1884 (*db)->hdb_firstkey = LDAP_firstkey;
1885 (*db)->hdb_nextkey = LDAP_nextkey;
1886 (*db)->hdb_lock = LDAP_lock;
1887 (*db)->hdb_unlock = LDAP_unlock;
1888 (*db)->hdb_rename = NULL;
1889 (*db)->hdb__get = NULL;
1890 (*db)->hdb__put = NULL;
1891 (*db)->hdb__del = NULL;
1892 (*db)->hdb_destroy = LDAP_destroy;
1898 hdb_ldap_create(krb5_context context, HDB ** db, const char *arg)
1900 return hdb_ldap_common(context, db, arg, "ldapi:///");
1904 hdb_ldapi_create(krb5_context context, HDB ** db, const char *arg)
1906 krb5_error_code ret;
1907 char *search_base, *p;
1909 asprintf(&p, "ldapi:%s", arg);
1912 krb5_set_error_message(context, ENOMEM, "out of memory");
1915 search_base = strchr(p + strlen("ldapi://"), ':');
1916 if (search_base == NULL) {
1918 krb5_set_error_message(context, HDB_ERR_BADVERSION,
1919 "search base missing");
1920 return HDB_ERR_BADVERSION;
1922 *search_base = '\0';
1925 ret = hdb_ldap_common(context, db, search_base, p);
1930 #ifdef OPENLDAP_MODULE
1932 struct hdb_so_method hdb_ldap_interface = {
1933 HDB_INTERFACE_VERSION,
1938 struct hdb_so_method hdb_ldapi_interface = {
1939 HDB_INTERFACE_VERSION,
1946 #endif /* OPENLDAP */