--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ LDAP protocol helper functions for SAMBA
+ Copyright (C) Jean François Micouleau 1998
+ Copyright (C) Gerald Carter 2001-2003
+ Copyright (C) Shahms King 2001
+ Copyright (C) Andrew Bartlett 2002-2003
+ Copyright (C) Stefan (metze) Metzmacher 2002-2003
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "includes.h"
+#include "smbldap.h"
+
+#ifndef LDAP_OPT_SUCCESS
+#define LDAP_OPT_SUCCESS 0
+#endif
+
+/* Try not to hit the up or down server forever */
+
+#define SMBLDAP_DONT_PING_TIME 10 /* ping only all 10 seconds */
+#define SMBLDAP_NUM_RETRIES 8 /* retry only 8 times */
+
+#define SMBLDAP_IDLE_TIME 150 /* After 2.5 minutes disconnect */
+
+
+/* attributes used by Samba 2.2 */
+
+ATTRIB_MAP_ENTRY attrib_map_v22[] = {
+ { LDAP_ATTR_UID, "uid" },
+ { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
+ { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
+ { LDAP_ATTR_UNIX_HOME, "homeDirectory" },
+ { LDAP_ATTR_PWD_LAST_SET, "pwdLastSet" },
+ { LDAP_ATTR_PWD_CAN_CHANGE, "pwdCanChange" },
+ { LDAP_ATTR_PWD_MUST_CHANGE, "pwdMustChange" },
+ { LDAP_ATTR_LOGON_TIME, "logonTime" },
+ { LDAP_ATTR_LOGOFF_TIME, "logoffTime" },
+ { LDAP_ATTR_KICKOFF_TIME, "kickoffTime" },
+ { LDAP_ATTR_CN, "cn" },
+ { LDAP_ATTR_DISPLAY_NAME, "displayName" },
+ { LDAP_ATTR_HOME_PATH, "smbHome" },
+ { LDAP_ATTR_HOME_DRIVE, "homeDrive" },
+ { LDAP_ATTR_LOGON_SCRIPT, "scriptPath" },
+ { LDAP_ATTR_PROFILE_PATH, "profilePath" },
+ { LDAP_ATTR_DESC, "description" },
+ { LDAP_ATTR_USER_WKS, "userWorkstations"},
+ { LDAP_ATTR_USER_RID, "rid" },
+ { LDAP_ATTR_PRIMARY_GROUP_RID, "primaryGroupID"},
+ { LDAP_ATTR_LMPW, "lmPassword" },
+ { LDAP_ATTR_NTPW, "ntPassword" },
+ { LDAP_ATTR_DOMAIN, "domain" },
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_ACB_INFO, "acctFlags" },
+ { LDAP_ATTR_MOD_TIMESTAMP, "modifyTimestamp" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+ATTRIB_MAP_ENTRY attrib_map_to_delete_v22[] = {
+ { LDAP_ATTR_PWD_LAST_SET, "pwdLastSet" },
+ { LDAP_ATTR_PWD_CAN_CHANGE, "pwdCanChange" },
+ { LDAP_ATTR_PWD_MUST_CHANGE, "pwdMustChange" },
+ { LDAP_ATTR_LOGON_TIME, "logonTime" },
+ { LDAP_ATTR_LOGOFF_TIME, "logoffTime" },
+ { LDAP_ATTR_KICKOFF_TIME, "kickoffTime" },
+ { LDAP_ATTR_DISPLAY_NAME, "displayName" },
+ { LDAP_ATTR_HOME_PATH, "smbHome" },
+ { LDAP_ATTR_HOME_DRIVE, "homeDrives" },
+ { LDAP_ATTR_LOGON_SCRIPT, "scriptPath" },
+ { LDAP_ATTR_PROFILE_PATH, "profilePath" },
+ { LDAP_ATTR_USER_WKS, "userWorkstations"},
+ { LDAP_ATTR_USER_RID, "rid" },
+ { LDAP_ATTR_PRIMARY_GROUP_RID, "primaryGroupID"},
+ { LDAP_ATTR_LMPW, "lmPassword" },
+ { LDAP_ATTR_NTPW, "ntPassword" },
+ { LDAP_ATTR_DOMAIN, "domain" },
+ { LDAP_ATTR_ACB_INFO, "acctFlags" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+/* attributes used by Samba 3.0's sambaSamAccount */
+
+ATTRIB_MAP_ENTRY attrib_map_v30[] = {
+ { LDAP_ATTR_UID, "uid" },
+ { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
+ { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
+ { LDAP_ATTR_UNIX_HOME, "homeDirectory" },
+ { LDAP_ATTR_PWD_LAST_SET, "sambaPwdLastSet" },
+ { LDAP_ATTR_PWD_CAN_CHANGE, "sambaPwdCanChange" },
+ { LDAP_ATTR_PWD_MUST_CHANGE, "sambaPwdMustChange" },
+ { LDAP_ATTR_LOGON_TIME, "sambaLogonTime" },
+ { LDAP_ATTR_LOGOFF_TIME, "sambaLogoffTime" },
+ { LDAP_ATTR_KICKOFF_TIME, "sambaKickoffTime" },
+ { LDAP_ATTR_CN, "cn" },
+ { LDAP_ATTR_DISPLAY_NAME, "displayName" },
+ { LDAP_ATTR_HOME_DRIVE, "sambaHomeDrive" },
+ { LDAP_ATTR_HOME_PATH, "sambaHomePath" },
+ { LDAP_ATTR_LOGON_SCRIPT, "sambaLogonScript" },
+ { LDAP_ATTR_PROFILE_PATH, "sambaProfilePath" },
+ { LDAP_ATTR_DESC, "description" },
+ { LDAP_ATTR_USER_WKS, "sambaUserWorkstations" },
+ { LDAP_ATTR_USER_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_PRIMARY_GROUP_SID, "sambaPrimaryGroupSID" },
+ { LDAP_ATTR_LMPW, "sambaLMPassword" },
+ { LDAP_ATTR_NTPW, "sambaNTPassword" },
+ { LDAP_ATTR_DOMAIN, "sambaDomainName" },
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_ACB_INFO, "sambaAcctFlags" },
+ { LDAP_ATTR_MUNGED_DIAL, "sambaMungedDial" },
+ { LDAP_ATTR_BAD_PASSWORD_COUNT, "sambaBadPasswordCount" },
+ { LDAP_ATTR_BAD_PASSWORD_TIME, "sambaBadPasswordTime" },
+ { LDAP_ATTR_PWD_HISTORY, "sambaPasswordHistory" },
+ { LDAP_ATTR_MOD_TIMESTAMP, "modifyTimestamp" },
+ { LDAP_ATTR_LOGON_HOURS, "sambaLogonHours" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+ATTRIB_MAP_ENTRY attrib_map_to_delete_v30[] = {
+ { LDAP_ATTR_PWD_LAST_SET, "sambaPwdLastSet" },
+ { LDAP_ATTR_PWD_CAN_CHANGE, "sambaPwdCanChange" },
+ { LDAP_ATTR_PWD_MUST_CHANGE, "sambaPwdMustChange" },
+ { LDAP_ATTR_LOGON_TIME, "sambaLogonTime" },
+ { LDAP_ATTR_LOGOFF_TIME, "sambaLogoffTime" },
+ { LDAP_ATTR_KICKOFF_TIME, "sambaKickoffTime" },
+ { LDAP_ATTR_HOME_DRIVE, "sambaHomeDrive" },
+ { LDAP_ATTR_HOME_PATH, "sambaHomePath" },
+ { LDAP_ATTR_LOGON_SCRIPT, "sambaLogonScript" },
+ { LDAP_ATTR_PROFILE_PATH, "sambaProfilePath" },
+ { LDAP_ATTR_USER_WKS, "sambaUserWorkstations" },
+ { LDAP_ATTR_USER_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_PRIMARY_GROUP_SID, "sambaPrimaryGroupSID" },
+ { LDAP_ATTR_LMPW, "sambaLMPassword" },
+ { LDAP_ATTR_NTPW, "sambaNTPassword" },
+ { LDAP_ATTR_DOMAIN, "sambaDomainName" },
+ { LDAP_ATTR_ACB_INFO, "sambaAcctFlags" },
+ { LDAP_ATTR_MUNGED_DIAL, "sambaMungedDial" },
+ { LDAP_ATTR_BAD_PASSWORD_COUNT, "sambaBadPasswordCount" },
+ { LDAP_ATTR_BAD_PASSWORD_TIME, "sambaBadPasswordTime" },
+ { LDAP_ATTR_PWD_HISTORY, "sambaPasswordHistory" },
+ { LDAP_ATTR_LOGON_HOURS, "sambaLogonHours" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+/* attributes used for allocating RIDs */
+
+ATTRIB_MAP_ENTRY dominfo_attr_list[] = {
+ { LDAP_ATTR_DOMAIN, "sambaDomainName" },
+ { LDAP_ATTR_NEXT_RID, "sambaNextRid" },
+ { LDAP_ATTR_NEXT_USERRID, "sambaNextUserRid" },
+ { LDAP_ATTR_NEXT_GROUPRID, "sambaNextGroupRid" },
+ { LDAP_ATTR_DOM_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_ALGORITHMIC_RID_BASE,"sambaAlgorithmicRidBase"},
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_LIST_END, NULL },
+};
+
+/* Samba 3.0 group mapping attributes */
+
+ATTRIB_MAP_ENTRY groupmap_attr_list[] = {
+ { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
+ { LDAP_ATTR_GROUP_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_GROUP_TYPE, "sambaGroupType" },
+ { LDAP_ATTR_SID_LIST, "sambaSIDList" },
+ { LDAP_ATTR_DESC, "description" },
+ { LDAP_ATTR_DISPLAY_NAME, "displayName" },
+ { LDAP_ATTR_CN, "cn" },
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+ATTRIB_MAP_ENTRY groupmap_attr_list_to_delete[] = {
+ { LDAP_ATTR_GROUP_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_GROUP_TYPE, "sambaGroupType" },
+ { LDAP_ATTR_DESC, "description" },
+ { LDAP_ATTR_DISPLAY_NAME, "displayName" },
+ { LDAP_ATTR_SID_LIST, "sambaSIDList" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+/* idmap_ldap sambaUnixIdPool */
+
+ATTRIB_MAP_ENTRY idpool_attr_list[] = {
+ { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
+ { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+ATTRIB_MAP_ENTRY sidmap_attr_list[] = {
+ { LDAP_ATTR_SID, LDAP_ATTRIBUTE_SID },
+ { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
+ { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_LIST_END, NULL }
+};
+
+/**********************************************************************
+ perform a simple table lookup and return the attribute name
+ **********************************************************************/
+
+ const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key )
+{
+ int i = 0;
+
+ while ( table[i].attrib != LDAP_ATTR_LIST_END ) {
+ if ( table[i].attrib == key )
+ return table[i].name;
+ i++;
+ }
+
+ return NULL;
+}
+
+
+/**********************************************************************
+ Return the list of attribute names from a mapping table
+ **********************************************************************/
+
+ const char** get_attr_list( ATTRIB_MAP_ENTRY table[] )
+{
+ const char **names;
+ int i = 0;
+
+ while ( table[i].attrib != LDAP_ATTR_LIST_END )
+ i++;
+ i++;
+
+ names = SMB_MALLOC_ARRAY( const char*, i );
+ if ( !names ) {
+ DEBUG(0,("get_attr_list: out of memory\n"));
+ return NULL;
+ }
+
+ i = 0;
+ while ( table[i].attrib != LDAP_ATTR_LIST_END ) {
+ names[i] = SMB_STRDUP( table[i].name );
+ i++;
+ }
+ names[i] = NULL;
+
+ return names;
+}
+
+/*********************************************************************
+ Cleanup
+ ********************************************************************/
+
+ void free_attr_list( const char **list )
+{
+ int i = 0;
+
+ if ( !list )
+ return;
+
+ while ( list[i] ) {
+ /* SAFE_FREE generates a warning here that can't be gotten rid
+ * of with CONST_DISCARD */
+ if (list[i] != NULL) {
+ free(CONST_DISCARD(char *, list[i]));
+ }
+ i+=1;
+ }
+
+ SAFE_FREE( list );
+}
+
+/*******************************************************************
+ Search an attribute and return the first value found.
+******************************************************************/
+
+ BOOL smbldap_get_single_attribute (LDAP * ldap_struct, LDAPMessage * entry,
+ const char *attribute, char *value,
+ int max_len)
+{
+ char **values;
+
+ if ( !attribute )
+ return False;
+
+ value[0] = '\0';
+
+ if ((values = ldap_get_values (ldap_struct, entry, attribute)) == NULL) {
+ DEBUG (10, ("smbldap_get_single_attribute: [%s] = [<does not exist>]\n", attribute));
+
+ return False;
+ }
+
+ if (convert_string(CH_UTF8, CH_UNIX,values[0], -1, value, max_len, False) == (size_t)-1) {
+ DEBUG(1, ("smbldap_get_single_attribute: string conversion of [%s] = [%s] failed!\n",
+ attribute, values[0]));
+ ldap_value_free(values);
+ return False;
+ }
+
+ ldap_value_free(values);
+#ifdef DEBUG_PASSWORDS
+ DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n", attribute, value));
+#endif
+ return True;
+}
+
+ BOOL smbldap_get_single_pstring (LDAP * ldap_struct, LDAPMessage * entry,
+ const char *attribute, pstring value)
+{
+ return smbldap_get_single_attribute(ldap_struct, entry,
+ attribute, value,
+ sizeof(pstring));
+}
+
+/************************************************************************
+ Routine to manage the LDAPMod structure array
+ manage memory used by the array, by each struct, and values
+ ***********************************************************************/
+
+ void smbldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value)
+{
+ LDAPMod **mods;
+ int i;
+ int j;
+
+ mods = *modlist;
+
+ /* sanity checks on the mod values */
+
+ if (attribute == NULL || *attribute == '\0') {
+ return;
+ }
+
+#if 0 /* commented out after discussion with abartlet. Do not reenable.
+ left here so other do not re-add similar code --jerry */
+ if (value == NULL || *value == '\0')
+ return;
+#endif
+
+ if (mods == NULL) {
+ mods = SMB_MALLOC_P(LDAPMod *);
+ if (mods == NULL) {
+ DEBUG(0, ("make_a_mod: out of memory!\n"));
+ return;
+ }
+ mods[0] = NULL;
+ }
+
+ for (i = 0; mods[i] != NULL; ++i) {
+ if (mods[i]->mod_op == modop && strequal(mods[i]->mod_type, attribute))
+ break;
+ }
+
+ if (mods[i] == NULL) {
+ mods = SMB_REALLOC_ARRAY (mods, LDAPMod *, i + 2);
+ if (mods == NULL) {
+ DEBUG(0, ("make_a_mod: out of memory!\n"));
+ return;
+ }
+ mods[i] = SMB_MALLOC_P(LDAPMod);
+ if (mods[i] == NULL) {
+ DEBUG(0, ("make_a_mod: out of memory!\n"));
+ return;
+ }
+ mods[i]->mod_op = modop;
+ mods[i]->mod_values = NULL;
+ mods[i]->mod_type = SMB_STRDUP(attribute);
+ mods[i + 1] = NULL;
+ }
+
+ if (value != NULL) {
+ char *utf8_value = NULL;
+
+ j = 0;
+ if (mods[i]->mod_values != NULL) {
+ for (; mods[i]->mod_values[j] != NULL; j++);
+ }
+ mods[i]->mod_values = SMB_REALLOC_ARRAY(mods[i]->mod_values, char *, j + 2);
+
+ if (mods[i]->mod_values == NULL) {
+ DEBUG (0, ("make_a_mod: Memory allocation failure!\n"));
+ return;
+ }
+
+ if (push_utf8_allocate(&utf8_value, value) == (size_t)-1) {
+ DEBUG (0, ("make_a_mod: String conversion failure!\n"));
+ return;
+ }
+
+ mods[i]->mod_values[j] = utf8_value;
+
+ mods[i]->mod_values[j + 1] = NULL;
+ }
+ *modlist = mods;
+}
+
+/**********************************************************************
+ Set attribute to newval in LDAP, regardless of what value the
+ attribute had in LDAP before.
+*********************************************************************/
+
+ void smbldap_make_mod(LDAP *ldap_struct, LDAPMessage *existing,
+ LDAPMod ***mods,
+ const char *attribute, const char *newval)
+{
+ char oldval[2048]; /* current largest allowed value is mungeddial */
+ BOOL existed;
+
+ if (attribute == NULL) {
+ /* This can actually happen for ldapsam_compat where we for
+ * example don't have a password history */
+ return;
+ }
+
+ if (existing != NULL) {
+ existed = smbldap_get_single_attribute(ldap_struct, existing, attribute, oldval, sizeof(oldval));
+ } else {
+ existed = False;
+ *oldval = '\0';
+ }
+
+ /* all of our string attributes are case insensitive */
+
+ if (existed && newval && (StrCaseCmp(oldval, newval) == 0)) {
+
+ /* Believe it or not, but LDAP will deny a delete and
+ an add at the same time if the values are the
+ same... */
+ DEBUG(10,("smbldap_make_mod: attribute |%s| not changed.\n", attribute));
+ return;
+ }
+
+ if (existed) {
+ /* There has been no value before, so don't delete it.
+ * Here's a possible race: We might end up with
+ * duplicate attributes */
+ /* By deleting exactly the value we found in the entry this
+ * should be race-free in the sense that the LDAP-Server will
+ * deny the complete operation if somebody changed the
+ * attribute behind our back. */
+ /* This will also allow modifying single valued attributes
+ * in Novell NDS. In NDS you have to first remove attribute and then
+ * you could add new value */
+
+ DEBUG(10,("smbldap_make_mod: deleting attribute |%s| values |%s|\n", attribute, oldval));
+ smbldap_set_mod(mods, LDAP_MOD_DELETE, attribute, oldval);
+ }
+
+ /* Regardless of the real operation (add or modify)
+ we add the new value here. We rely on deleting
+ the old value, should it exist. */
+
+ if ((newval != NULL) && (strlen(newval) > 0)) {
+ DEBUG(10,("smbldap_make_mod: adding attribute |%s| value |%s|\n", attribute, newval));
+ smbldap_set_mod(mods, LDAP_MOD_ADD, attribute, newval);
+ }
+}
+
+/**********************************************************************
+ Some varients of the LDAP rebind code do not pass in the third 'arg'
+ pointer to a void*, so we try and work around it by assuming that the
+ value of the 'LDAP *' pointer is the same as the one we had passed in
+ **********************************************************************/
+
+struct smbldap_state_lookup {
+ LDAP *ld;
+ struct smbldap_state *smbldap_state;
+ struct smbldap_state_lookup *prev, *next;
+};
+
+static struct smbldap_state_lookup *smbldap_state_lookup_list;
+
+static struct smbldap_state *smbldap_find_state(LDAP *ld)
+{
+ struct smbldap_state_lookup *t;
+
+ for (t = smbldap_state_lookup_list; t; t = t->next) {
+ if (t->ld == ld) {
+ return t->smbldap_state;
+ }
+ }
+ return NULL;
+}
+
+static void smbldap_delete_state(struct smbldap_state *smbldap_state)
+{
+ struct smbldap_state_lookup *t;
+
+ for (t = smbldap_state_lookup_list; t; t = t->next) {
+ if (t->smbldap_state == smbldap_state) {
+ DLIST_REMOVE(smbldap_state_lookup_list, t);
+ SAFE_FREE(t);
+ return;
+ }
+ }
+}
+
+static void smbldap_store_state(LDAP *ld, struct smbldap_state *smbldap_state)
+{
+ struct smbldap_state *tmp_ldap_state;
+ struct smbldap_state_lookup *t;
+ struct smbldap_state_lookup *tmp;
+
+ if ((tmp_ldap_state = smbldap_find_state(ld))) {
+ SMB_ASSERT(tmp_ldap_state == smbldap_state);
+ return;
+ }
+
+ t = SMB_XMALLOC_P(struct smbldap_state_lookup);
+ ZERO_STRUCTP(t);
+
+ DLIST_ADD_END(smbldap_state_lookup_list, t, tmp);
+ t->ld = ld;
+ t->smbldap_state = smbldap_state;
+}
+
+/********************************************************************
+ start TLS on an existing LDAP connection
+*******************************************************************/
+
+int smb_ldap_start_tls(LDAP *ldap_struct, int version)
+{
+ int rc;
+
+ if (lp_ldap_ssl() != LDAP_SSL_START_TLS) {
+ return LDAP_SUCCESS;
+ }
+
+#ifdef LDAP_OPT_X_TLS
+ if (version != LDAP_VERSION3) {
+ DEBUG(0, ("Need LDAPv3 for Start TLS\n"));
+ return LDAP_OPERATIONS_ERROR;
+ }
+
+ if ((rc = ldap_start_tls_s (ldap_struct, NULL, NULL)) != LDAP_SUCCESS) {
+ DEBUG(0,("Failed to issue the StartTLS instruction: %s\n",
+ ldap_err2string(rc)));
+ return rc;
+ }
+
+ DEBUG (3, ("StartTLS issued: using a TLS connection\n"));
+ return LDAP_SUCCESS;
+#else
+ DEBUG(0,("StartTLS not supported by LDAP client libraries!\n"));
+ return LDAP_OPERATIONS_ERROR;
+#endif
+}
+
+/********************************************************************
+ setup a connection to the LDAP server based on a uri
+*******************************************************************/
+
+int smb_ldap_setup_conn(LDAP **ldap_struct, const char *uri)
+{
+ int rc;
+
+ DEBUG(10, ("smb_ldap_setup_connection: %s\n", uri));
+
+#ifdef HAVE_LDAP_INITIALIZE
+
+ rc = ldap_initialize(ldap_struct, uri);
+ if (rc) {
+ DEBUG(0, ("ldap_initialize: %s\n", ldap_err2string(rc)));
+ }
+
+ return rc;
+#else
+
+ /* Parse the string manually */
+
+ {
+ int port = 0;
+ fstring protocol;
+ fstring host;
+ SMB_ASSERT(sizeof(protocol)>10 && sizeof(host)>254);
+
+
+ /* skip leading "URL:" (if any) */
+ if ( strnequal( uri, "URL:", 4 ) ) {
+ uri += 4;
+ }
+
+ sscanf(uri, "%10[^:]://%254[^:/]:%d", protocol, host, &port);
+
+ if (port == 0) {
+ if (strequal(protocol, "ldap")) {
+ port = LDAP_PORT;
+ } else if (strequal(protocol, "ldaps")) {
+ port = LDAPS_PORT;
+ } else {
+ DEBUG(0, ("unrecognised protocol (%s)!\n", protocol));
+ }
+ }
+
+ if ((*ldap_struct = ldap_init(host, port)) == NULL) {
+ DEBUG(0, ("ldap_init failed !\n"));
+ return LDAP_OPERATIONS_ERROR;
+ }
+
+ if (strequal(protocol, "ldaps")) {
+#ifdef LDAP_OPT_X_TLS
+ int tls = LDAP_OPT_X_TLS_HARD;
+ if (ldap_set_option (*ldap_struct, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS)
+ {
+ DEBUG(0, ("Failed to setup a TLS session\n"));
+ }
+
+ DEBUG(3,("LDAPS option set...!\n"));
+#else
+ DEBUG(0,("smbldap_open_connection: Secure connection not supported by LDAP client libraries!\n"));
+ return LDAP_OPERATIONS_ERROR;
+#endif /* LDAP_OPT_X_TLS */
+ }
+
+ }
+#endif /* HAVE_LDAP_INITIALIZE */
+ return LDAP_SUCCESS;
+}
+
+/********************************************************************
+ try to upgrade to Version 3 LDAP if not already, in either case return current
+ version
+ *******************************************************************/
+
+int smb_ldap_upgrade_conn(LDAP *ldap_struct, int *new_version)
+{
+ int version;
+ int rc;
+
+ /* assume the worst */
+ *new_version = LDAP_VERSION2;
+
+ rc = ldap_get_option(ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
+ if (rc) {
+ return rc;
+ }
+
+ if (version == LDAP_VERSION3) {
+ *new_version = LDAP_VERSION3;
+ return LDAP_SUCCESS;
+ }
+
+ /* try upgrade */
+ version = LDAP_VERSION3;
+ rc = ldap_set_option (ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
+ if (rc) {
+ return rc;
+ }
+
+ *new_version = LDAP_VERSION3;
+ return LDAP_SUCCESS;
+}
+
+/*******************************************************************
+ open a connection to the ldap server (just until the bind)
+ ******************************************************************/
+
+int smb_ldap_setup_full_conn(LDAP **ldap_struct, const char *uri)
+{
+ int rc, version;
+
+ rc = smb_ldap_setup_conn(ldap_struct, uri);
+ if (rc) {
+ return rc;
+ }
+
+ rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
+ if (rc) {
+ return rc;
+ }
+
+ rc = smb_ldap_start_tls(*ldap_struct, version);
+ if (rc) {
+ return rc;
+ }
+
+ return LDAP_SUCCESS;
+}
+
+/*******************************************************************
+ open a connection to the ldap server.
+******************************************************************/
+static int smbldap_open_connection (struct smbldap_state *ldap_state)
+
+{
+ int rc = LDAP_SUCCESS;
+ int version;
+ LDAP **ldap_struct = &ldap_state->ldap_struct;
+
+ rc = smb_ldap_setup_conn(ldap_struct, ldap_state->uri);
+ if (rc) {
+ return rc;
+ }
+
+ /* Store the LDAP pointer in a lookup list */
+
+ smbldap_store_state(*ldap_struct, ldap_state);
+
+ /* Upgrade to LDAPv3 if possible */
+
+ rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
+ if (rc) {
+ return rc;
+ }
+
+ /* Start TLS if required */
+
+ rc = smb_ldap_start_tls(*ldap_struct, version);
+ if (rc) {
+ return rc;
+ }
+
+ DEBUG(2, ("smbldap_open_connection: connection opened\n"));
+ return rc;
+}
+
+/*******************************************************************
+ a rebind function for authenticated referrals
+ This version takes a void* that we can shove useful stuff in :-)
+******************************************************************/
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+#else
+static int rebindproc_with_state (LDAP * ld, char **whop, char **credp,
+ int *methodp, int freeit, void *arg)
+{
+ struct smbldap_state *ldap_state = arg;
+
+ /** @TODO Should we be doing something to check what servers we rebind to?
+ Could we get a referral to a machine that we don't want to give our
+ username and password to? */
+
+ if (freeit) {
+ SAFE_FREE(*whop);
+ memset(*credp, '\0', strlen(*credp));
+ SAFE_FREE(*credp);
+ } else {
+ DEBUG(5,("rebind_proc_with_state: Rebinding as \"%s\"\n",
+ ldap_state->bind_dn));
+
+ *whop = SMB_STRDUP(ldap_state->bind_dn);
+ if (!*whop) {
+ return LDAP_NO_MEMORY;
+ }
+ *credp = SMB_STRDUP(ldap_state->bind_secret);
+ if (!*credp) {
+ SAFE_FREE(*whop);
+ return LDAP_NO_MEMORY;
+ }
+ *methodp = LDAP_AUTH_SIMPLE;
+ }
+
+ GetTimeOfDay(&ldap_state->last_rebind);
+
+ return 0;
+}
+#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+
+/*******************************************************************
+ a rebind function for authenticated referrals
+ This version takes a void* that we can shove useful stuff in :-)
+ and actually does the connection.
+******************************************************************/
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+static int rebindproc_connect_with_state (LDAP *ldap_struct,
+ LDAP_CONST char *url,
+ ber_tag_t request,
+ ber_int_t msgid, void *arg)
+{
+ struct smbldap_state *ldap_state = arg;
+ int rc;
+ int version;
+
+ DEBUG(5,("rebindproc_connect_with_state: Rebinding to %s as \"%s\"\n",
+ url, ldap_state->bind_dn));
+
+ /* call START_TLS again (ldaps:// is handled by the OpenLDAP library
+ * itself) before rebinding to another LDAP server to avoid to expose
+ * our credentials. At least *try* to secure the connection - Guenther */
+
+ smb_ldap_upgrade_conn(ldap_struct, &version);
+ smb_ldap_start_tls(ldap_struct, version);
+
+ /** @TODO Should we be doing something to check what servers we rebind to?
+ Could we get a referral to a machine that we don't want to give our
+ username and password to? */
+
+ rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
+
+ GetTimeOfDay(&ldap_state->last_rebind);
+
+ return rc;
+}
+#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+
+/*******************************************************************
+ Add a rebind function for authenticated referrals
+******************************************************************/
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+#else
+# if LDAP_SET_REBIND_PROC_ARGS == 2
+static int rebindproc (LDAP *ldap_struct, char **whop, char **credp,
+ int *method, int freeit )
+{
+ struct smbldap_state *ldap_state = smbldap_find_state(ldap_struct);
+
+ return rebindproc_with_state(ldap_struct, whop, credp,
+ method, freeit, ldap_state);
+
+}
+# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
+#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+
+/*******************************************************************
+ a rebind function for authenticated referrals
+ this also does the connection, but no void*.
+******************************************************************/
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+# if LDAP_SET_REBIND_PROC_ARGS == 2
+static int rebindproc_connect (LDAP * ld, LDAP_CONST char *url, int request,
+ ber_int_t msgid)
+{
+ struct smbldap_state *ldap_state = smbldap_find_state(ld);
+
+ return rebindproc_connect_with_state(ld, url, (ber_tag_t)request, msgid,
+ ldap_state);
+}
+# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
+#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+
+/*******************************************************************
+ connect to the ldap server under system privilege.
+******************************************************************/
+static int smbldap_connect_system(struct smbldap_state *ldap_state, LDAP * ldap_struct)
+{
+ int rc;
+ char *ldap_dn;
+ char *ldap_secret;
+ int version;
+
+ /* get the password */
+ if (!fetch_ldap_pw(&ldap_dn, &ldap_secret)) {
+ DEBUG(0, ("ldap_connect_system: Failed to retrieve password from secrets.tdb\n"));
+ return LDAP_INVALID_CREDENTIALS;
+ }
+
+ ldap_state->bind_dn = ldap_dn;
+ ldap_state->bind_secret = ldap_secret;
+
+ /* removed the sasl_bind_s "EXTERNAL" stuff, as my testsuite
+ (OpenLDAP) doesnt' seem to support it */
+
+ DEBUG(10,("ldap_connect_system: Binding to ldap server %s as \"%s\"\n",
+ ldap_state->uri, ldap_dn));
+
+#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
+# if LDAP_SET_REBIND_PROC_ARGS == 2
+ ldap_set_rebind_proc(ldap_struct, &rebindproc_connect);
+# endif
+# if LDAP_SET_REBIND_PROC_ARGS == 3
+ ldap_set_rebind_proc(ldap_struct, &rebindproc_connect_with_state, (void *)ldap_state);
+# endif
+#else /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+# if LDAP_SET_REBIND_PROC_ARGS == 2
+ ldap_set_rebind_proc(ldap_struct, &rebindproc);
+# endif
+# if LDAP_SET_REBIND_PROC_ARGS == 3
+ ldap_set_rebind_proc(ldap_struct, &rebindproc_with_state, (void *)ldap_state);
+# endif
+#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
+
+ rc = ldap_simple_bind_s(ldap_struct, ldap_dn, ldap_secret);
+
+ if (rc != LDAP_SUCCESS) {
+ char *ld_error = NULL;
+ ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
+ &ld_error);
+ DEBUG(ldap_state->num_failures ? 2 : 0,
+ ("failed to bind to server %s with dn=\"%s\" Error: %s\n\t%s\n",
+ ldap_state->uri,
+ ldap_dn ? ldap_dn : "(unknown)", ldap_err2string(rc),
+ ld_error ? ld_error : "(unknown)"));
+ SAFE_FREE(ld_error);
+ ldap_state->num_failures++;
+ return rc;
+ }
+
+ ldap_state->num_failures = 0;
+ ldap_state->paged_results = False;
+
+ ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
+
+ if (smbldap_has_control(ldap_state, ADS_PAGE_CTL_OID) && version == 3) {
+ ldap_state->paged_results = True;
+ }
+
+ DEBUG(3, ("ldap_connect_system: succesful connection to the LDAP server\n"));
+ DEBUGADD(10, ("ldap_connect_system: LDAP server %s support paged results\n",
+ ldap_state->paged_results ? "does" : "does not"));
+ return rc;
+}
+
+/**********************************************************************
+ Connect to LDAP server (called before every ldap operation)
+*********************************************************************/
+static int smbldap_open(struct smbldap_state *ldap_state)
+{
+ int rc, opt_rc;
+ BOOL reopen = False;
+ SMB_ASSERT(ldap_state);
+
+#ifndef NO_LDAP_SECURITY
+ if (geteuid() != 0) {
+ DEBUG(0, ("smbldap_open: cannot access LDAP when not root..\n"));
+ return LDAP_INSUFFICIENT_ACCESS;
+ }
+#endif
+
+ if ((ldap_state->ldap_struct != NULL) && ((ldap_state->last_ping + SMBLDAP_DONT_PING_TIME) < time(NULL))) {
+
+ struct sockaddr_un addr;
+ socklen_t len = sizeof(addr);
+ int sd;
+
+ opt_rc = ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_DESC, &sd);
+ if (opt_rc == 0 && (getpeername(sd, (struct sockaddr *) &addr, &len)) < 0 )
+ reopen = True;
+
+#ifdef HAVE_UNIXSOCKET
+ if (opt_rc == 0 && addr.sun_family == AF_UNIX)
+ reopen = True;
+#endif
+ if (reopen) {
+ /* the other end has died. reopen. */
+ ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL);
+ ldap_state->ldap_struct = NULL;
+ ldap_state->last_ping = (time_t)0;
+ } else {
+ ldap_state->last_ping = time(NULL);
+ }
+ }
+
+ if (ldap_state->ldap_struct != NULL) {
+ DEBUG(11,("smbldap_open: already connected to the LDAP server\n"));
+ return LDAP_SUCCESS;
+ }
+
+ if ((rc = smbldap_open_connection(ldap_state))) {
+ return rc;
+ }
+
+ if ((rc = smbldap_connect_system(ldap_state, ldap_state->ldap_struct))) {
+ ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL);
+ ldap_state->ldap_struct = NULL;
+ return rc;
+ }
+
+
+ ldap_state->last_ping = time(NULL);
+ ldap_state->pid = sys_getpid();
+ DEBUG(4,("The LDAP server is succesfully connected\n"));
+
+ return LDAP_SUCCESS;
+}
+
+/**********************************************************************
+Disconnect from LDAP server
+*********************************************************************/
+static NTSTATUS smbldap_close(struct smbldap_state *ldap_state)
+{
+ if (!ldap_state)
+ return NT_STATUS_INVALID_PARAMETER;
+
+ if (ldap_state->ldap_struct != NULL) {
+ ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL);
+ ldap_state->ldap_struct = NULL;
+ }
+
+ smbldap_delete_state(ldap_state);
+
+ DEBUG(5,("The connection to the LDAP server was closed\n"));
+ /* maybe free the results here --metze */
+
+
+
+ return NT_STATUS_OK;
+}
+
+static BOOL got_alarm;
+
+static void (*old_handler)(int);
+
+static void gotalarm_sig(int dummy)
+{
+ got_alarm = True;
+}
+
+static int another_ldap_try(struct smbldap_state *ldap_state, int *rc,
+ int *attempts, time_t endtime)
+{
+ time_t now = time(NULL);
+ int open_rc = LDAP_SERVER_DOWN;
+
+ if (*rc != LDAP_SERVER_DOWN)
+ goto no_next;
+
+ if (now >= endtime) {
+ smbldap_close(ldap_state);
+ *rc = LDAP_TIMEOUT;
+ goto no_next;
+ }
+
+ if (*attempts == 0) {
+ got_alarm = False;
+ old_handler = CatchSignal(SIGALRM, gotalarm_sig);
+ alarm(endtime - now);
+
+ if (ldap_state->pid != sys_getpid())
+ smbldap_close(ldap_state);
+ }
+
+ while (1) {
+
+ if (*attempts != 0)
+ smb_msleep(1000);
+
+ *attempts += 1;
+
+ open_rc = smbldap_open(ldap_state);
+
+ if (open_rc == LDAP_SUCCESS) {
+ ldap_state->last_use = now;
+ return True;
+ }
+
+ if (got_alarm) {
+ *rc = LDAP_TIMEOUT;
+ break;
+ }
+
+ if (open_rc != LDAP_SUCCESS) {
+ DEBUG(1, ("Connection to LDAP server failed for the "
+ "%d try!\n", *attempts));
+ }
+ }
+
+ no_next:
+ CatchSignal(SIGALRM, old_handler);
+ alarm(0);
+ ldap_state->last_use = now;
+ return False;
+}
+
+/*********************************************************************
+ ********************************************************************/
+
+static int smbldap_search_ext(struct smbldap_state *ldap_state,
+ const char *base, int scope, const char *filter,
+ const char *attrs[], int attrsonly,
+ LDAPControl **sctrls, LDAPControl **cctrls,
+ int sizelimit, LDAPMessage **res)
+{
+ int rc = LDAP_SERVER_DOWN;
+ int attempts = 0;
+ char *utf8_filter;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
+ struct timeval timeout;
+
+ SMB_ASSERT(ldap_state);
+
+ DEBUG(5,("smbldap_search_ext: base => [%s], filter => [%s], "
+ "scope => [%d]\n", base, filter, scope));
+
+ if (ldap_state->last_rebind.tv_sec > 0) {
+ struct timeval tval;
+ SMB_BIG_INT tdiff = 0;
+ int sleep_time = 0;
+
+ ZERO_STRUCT(tval);
+ GetTimeOfDay(&tval);
+
+ tdiff = usec_time_diff(&tval, &ldap_state->last_rebind);
+ tdiff /= 1000; /* Convert to milliseconds. */
+
+ sleep_time = lp_ldap_replication_sleep()-(int)tdiff;
+ sleep_time = MIN(sleep_time, MAX_LDAP_REPLICATION_SLEEP_TIME);
+
+ if (sleep_time > 0) {
+ /* we wait for the LDAP replication */
+ DEBUG(5,("smbldap_search_ext: waiting %d milliseconds "
+ "for LDAP replication.\n",sleep_time));
+ smb_msleep(sleep_time);
+ DEBUG(5,("smbldap_search_ext: go on!\n"));
+ }
+ ZERO_STRUCT(ldap_state->last_rebind);
+ }
+
+ if (push_utf8_allocate(&utf8_filter, filter) == (size_t)-1) {
+ return LDAP_NO_MEMORY;
+ }
+
+ /* Setup timeout for the ldap_search_ext_s call - local and remote. */
+ timeout.tv_sec = lp_ldap_timeout();
+ timeout.tv_usec = 0;
+
+ /* Setup alarm timeout.... Do we need both of these ? JRA.
+ * Yes, I think we do need both of these. The server timeout only
+ * covers the case where the server's operation takes too long. It
+ * does not cover the case where the request hangs on its way to the
+ * server. The server side timeout is not strictly necessary, it's
+ * just a bit more kind to the server. VL. */
+
+ got_alarm = 0;
+ CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
+ alarm(lp_ldap_timeout());
+ /* End setup timeout. */
+
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_search_ext_s(ldap_state->ldap_struct, base, scope,
+ utf8_filter,
+ CONST_DISCARD(char **, attrs),
+ attrsonly, sctrls, cctrls, &timeout,
+ sizelimit, res);
+
+ SAFE_FREE(utf8_filter);
+
+ /* Teardown timeout. */
+ CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
+ alarm(0);
+
+ if (got_alarm != 0)
+ return LDAP_TIMELIMIT_EXCEEDED;
+
+ return rc;
+}
+
+int smbldap_search(struct smbldap_state *ldap_state,
+ const char *base, int scope, const char *filter,
+ const char *attrs[], int attrsonly,
+ LDAPMessage **res)
+{
+ return smbldap_search_ext(ldap_state, base, scope, filter, attrs,
+ attrsonly, NULL, NULL, LDAP_NO_LIMIT, res);
+}
+
+int smbldap_search_paged(struct smbldap_state *ldap_state,
+ const char *base, int scope, const char *filter,
+ const char **attrs, int attrsonly, int pagesize,
+ LDAPMessage **res, void **cookie)
+{
+ LDAPControl pr;
+ LDAPControl **rcontrols;
+ LDAPControl *controls[2] = { NULL, NULL};
+ BerElement *cookie_be = NULL;
+ struct berval *cookie_bv = NULL;
+ int tmp = 0, i, rc;
+ BOOL critical = True;
+
+ *res = NULL;
+
+ DEBUG(3,("smbldap_search_paged: base => [%s], filter => [%s],"
+ "scope => [%d], pagesize => [%d]\n",
+ base, filter, scope, pagesize));
+
+ cookie_be = ber_alloc_t(LBER_USE_DER);
+ if (cookie_be == NULL) {
+ DEBUG(0,("smbldap_create_page_control: ber_alloc_t returns "
+ "NULL\n"));
+ return LDAP_NO_MEMORY;
+ }
+
+ /* construct cookie */
+ if (*cookie != NULL) {
+ ber_printf(cookie_be, "{iO}", (ber_int_t) pagesize, *cookie);
+ ber_bvfree(*cookie); /* don't need it from last time */
+ *cookie = NULL;
+ } else {
+ ber_printf(cookie_be, "{io}", (ber_int_t) pagesize, "", 0);
+ }
+ ber_flatten(cookie_be, &cookie_bv);
+
+ pr.ldctl_oid = CONST_DISCARD(char *, ADS_PAGE_CTL_OID);
+ pr.ldctl_iscritical = (char) critical;
+ pr.ldctl_value.bv_len = cookie_bv->bv_len;
+ pr.ldctl_value.bv_val = cookie_bv->bv_val;
+
+ controls[0] = ≺
+ controls[1] = NULL;
+
+ rc = smbldap_search_ext(ldap_state, base, scope, filter, attrs,
+ 0, controls, NULL, LDAP_NO_LIMIT, res);
+
+ ber_free(cookie_be, 1);
+ ber_bvfree(cookie_bv);
+
+ if (rc != 0) {
+ DEBUG(3,("smbldap_search_paged: smbldap_search_ext(%s) "
+ "failed with [%s]\n", filter, ldap_err2string(rc)));
+ goto done;
+ }
+
+ DEBUG(3,("smbldap_search_paged: search was successfull\n"));
+
+ rc = ldap_parse_result(ldap_state->ldap_struct, *res, NULL, NULL,
+ NULL, NULL, &rcontrols, 0);
+ if (rc != 0) {
+ DEBUG(3,("smbldap_search_paged: ldap_parse_result failed " \
+ "with [%s]\n", ldap_err2string(rc)));
+ goto done;
+ }
+
+ if (rcontrols == NULL)
+ goto done;
+
+ for (i=0; rcontrols[i]; i++) {
+
+ if (strcmp(ADS_PAGE_CTL_OID, rcontrols[i]->ldctl_oid) != 0)
+ continue;
+
+ cookie_be = ber_init(&rcontrols[i]->ldctl_value);
+ ber_scanf(cookie_be,"{iO}", &tmp, &cookie_bv);
+ /* the berval is the cookie, but must be freed when it is all
+ done */
+ if (cookie_bv->bv_len)
+ *cookie=ber_bvdup(cookie_bv);
+ else
+ *cookie=NULL;
+ ber_bvfree(cookie_bv);
+ ber_free(cookie_be, 1);
+ break;
+ }
+ ldap_controls_free(rcontrols);
+done:
+ return rc;
+}
+
+int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
+{
+ int rc = LDAP_SERVER_DOWN;
+ int attempts = 0;
+ char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
+
+ SMB_ASSERT(ldap_state);
+
+ DEBUG(5,("smbldap_modify: dn => [%s]\n", dn ));
+
+ if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
+ return LDAP_NO_MEMORY;
+ }
+
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_modify_s(ldap_state->ldap_struct, utf8_dn, attrs);
+
+ SAFE_FREE(utf8_dn);
+ return rc;
+}
+
+int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
+{
+ int rc = LDAP_SERVER_DOWN;
+ int attempts = 0;
+ char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
+
+ SMB_ASSERT(ldap_state);
+
+ DEBUG(5,("smbldap_add: dn => [%s]\n", dn ));
+
+ if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
+ return LDAP_NO_MEMORY;
+ }
+
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_add_s(ldap_state->ldap_struct, utf8_dn, attrs);
+
+ SAFE_FREE(utf8_dn);
+ return rc;
+}
+
+int smbldap_delete(struct smbldap_state *ldap_state, const char *dn)
+{
+ int rc = LDAP_SERVER_DOWN;
+ int attempts = 0;
+ char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
+
+ SMB_ASSERT(ldap_state);
+
+ DEBUG(5,("smbldap_delete: dn => [%s]\n", dn ));
+
+ if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
+ return LDAP_NO_MEMORY;
+ }
+
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_delete_s(ldap_state->ldap_struct, utf8_dn);
+
+ SAFE_FREE(utf8_dn);
+ return rc;
+}
+
+int smbldap_extended_operation(struct smbldap_state *ldap_state,
+ LDAP_CONST char *reqoid, struct berval *reqdata,
+ LDAPControl **serverctrls, LDAPControl **clientctrls,
+ char **retoidp, struct berval **retdatap)
+{
+ int rc = LDAP_SERVER_DOWN;
+ int attempts = 0;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
+
+ if (!ldap_state)
+ return (-1);
+
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid,
+ reqdata, serverctrls,
+ clientctrls, retoidp, retdatap);
+ return rc;
+}
+
+/*******************************************************************
+ run the search by name.
+******************************************************************/
+int smbldap_search_suffix (struct smbldap_state *ldap_state, const char *filter,
+ const char **search_attr, LDAPMessage ** result)
+{
+ int scope = LDAP_SCOPE_SUBTREE;
+ int rc;
+
+ rc = smbldap_search(ldap_state, lp_ldap_suffix(), scope, filter, search_attr, 0, result);
+
+ if (rc != LDAP_SUCCESS) {
+ char *ld_error = NULL;
+ ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
+ &ld_error);
+ DEBUG(0,("smbldap_search_suffix: Problem during the LDAP search: %s (%s)\n",
+ ld_error?ld_error:"(unknown)", ldap_err2string (rc)));
+ SAFE_FREE(ld_error);
+ }
+
+ return rc;
+}
+
+static void smbldap_idle_fn(void **data, time_t *interval, time_t now)
+{
+ struct smbldap_state *state = (struct smbldap_state *)(*data);
+
+ if (state->ldap_struct == NULL) {
+ DEBUG(10,("ldap connection not connected...\n"));
+ return;
+ }
+
+ if ((state->last_use+SMBLDAP_IDLE_TIME) > now) {
+ DEBUG(10,("ldap connection not idle...\n"));
+ return;
+ }
+
+ DEBUG(7,("ldap connection idle...closing connection\n"));
+ smbldap_close(state);
+}
+
+/**********************************************************************
+ Housekeeping
+ *********************************************************************/
+
+void smbldap_free_struct(struct smbldap_state **ldap_state)
+{
+ smbldap_close(*ldap_state);
+
+ if ((*ldap_state)->bind_secret) {
+ memset((*ldap_state)->bind_secret, '\0', strlen((*ldap_state)->bind_secret));
+ }
+
+ SAFE_FREE((*ldap_state)->bind_dn);
+ SAFE_FREE((*ldap_state)->bind_secret);
+
+ smb_unregister_idle_event((*ldap_state)->event_id);
+
+ *ldap_state = NULL;
+
+ /* No need to free any further, as it is talloc()ed */
+}
+
+
+/**********************************************************************
+ Intitalise the 'general' ldap structures, on which ldap operations may be conducted
+ *********************************************************************/
+
+NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, const char *location, struct smbldap_state **smbldap_state)
+{
+ *smbldap_state = TALLOC_ZERO_P(mem_ctx, struct smbldap_state);
+ if (!*smbldap_state) {
+ DEBUG(0, ("talloc() failed for ldapsam private_data!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (location) {
+ (*smbldap_state)->uri = talloc_strdup(mem_ctx, location);
+ } else {
+ (*smbldap_state)->uri = "ldap://localhost";
+ }
+
+ (*smbldap_state)->event_id =
+ smb_register_idle_event(smbldap_idle_fn, (void *)(*smbldap_state),
+ SMBLDAP_IDLE_TIME);
+
+ if ((*smbldap_state)->event_id == SMB_EVENT_ID_INVALID) {
+ DEBUG(0,("Failed to register LDAP idle event!\n"));
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ Return a copy of the DN for a LDAPMessage. Convert from utf8 to CH_UNIX.
+********************************************************************/
+
+char *smbldap_get_dn(LDAP *ld, LDAPMessage *entry)
+{
+ char *utf8_dn, *unix_dn;
+
+ utf8_dn = ldap_get_dn(ld, entry);
+ if (!utf8_dn) {
+ DEBUG (5, ("smbldap_get_dn: ldap_get_dn failed\n"));
+ return NULL;
+ }
+ if (pull_utf8_allocate(&unix_dn, utf8_dn) == (size_t)-1) {
+ DEBUG (0, ("smbldap_get_dn: String conversion failure utf8 [%s]\n", utf8_dn));
+ return NULL;
+ }
+ ldap_memfree(utf8_dn);
+ return unix_dn;
+}
+
+/*******************************************************************
+ Check if root-dse has a certain Control or Extension
+********************************************************************/
+
+static BOOL smbldap_check_root_dse(struct smbldap_state *ldap_state, const char **attrs, const char *value)
+{
+ LDAPMessage *msg = NULL;
+ LDAPMessage *entry = NULL;
+ char **values = NULL;
+ int rc, num_result, num_values, i;
+ BOOL result = False;
+
+ if (!attrs[0]) {
+ DEBUG(3,("smbldap_check_root_dse: nothing to look for\n"));
+ return False;
+ }
+
+ if (!strequal(attrs[0], "supportedExtension") &&
+ !strequal(attrs[0], "supportedControl") &&
+ !strequal(attrs[0], "namingContexts")) {
+ DEBUG(3,("smbldap_check_root_dse: no idea what to query root-dse for: %s ?\n", attrs[0]));
+ return False;
+ }
+
+ rc = ldap_search_s(ldap_state->ldap_struct, "", LDAP_SCOPE_BASE,
+ "(objectclass=*)", CONST_DISCARD(char **, attrs), 0 , &msg);
+
+ if (rc != LDAP_SUCCESS) {
+ DEBUG(3,("smbldap_check_root_dse: Could not search rootDSE\n"));
+ return False;
+ }
+
+ num_result = ldap_count_entries(ldap_state->ldap_struct, msg);
+
+ if (num_result != 1) {
+ DEBUG(3,("smbldap_check_root_dse: Expected one rootDSE, got %d\n", num_result));
+ goto done;
+ }
+
+ entry = ldap_first_entry(ldap_state->ldap_struct, msg);
+
+ if (entry == NULL) {
+ DEBUG(3,("smbldap_check_root_dse: Could not retrieve rootDSE\n"));
+ goto done;
+ }
+
+ values = ldap_get_values(ldap_state->ldap_struct, entry, attrs[0]);
+
+ if (values == NULL) {
+ DEBUG(5,("smbldap_check_root_dse: LDAP Server does not support any %s\n", attrs[0]));
+ goto done;
+ }
+
+ num_values = ldap_count_values(values);
+
+ if (num_values == 0) {
+ DEBUG(5,("smbldap_check_root_dse: LDAP Server does not have any %s\n", attrs[0]));
+ goto done;
+ }
+
+ for (i=0; i<num_values; i++) {
+ if (strcmp(values[i], value) == 0)
+ result = True;
+ }
+
+
+ done:
+ if (values != NULL)
+ ldap_value_free(values);
+ if (msg != NULL)
+ ldap_msgfree(msg);
+
+ return result;
+
+}
+
+/*******************************************************************
+ Check if LDAP-Server supports a certain Control (OID in string format)
+********************************************************************/
+
+BOOL smbldap_has_control(struct smbldap_state *ldap_state, const char *control)
+{
+ const char *attrs[] = { "supportedControl", NULL };
+ return smbldap_check_root_dse(ldap_state, attrs, control);
+}
+
+/*******************************************************************
+ Check if LDAP-Server supports a certain Extension (OID in string format)
+********************************************************************/
+
+BOOL smbldap_has_extension(struct smbldap_state *ldap_state, const char *extension)
+{
+ const char *attrs[] = { "supportedExtension", NULL };
+ return smbldap_check_root_dse(ldap_state, attrs, extension);
+}
+
+/*******************************************************************
+ Check if LDAP-Server holds a given namingContext
+********************************************************************/
+
+BOOL smbldap_has_naming_context(struct smbldap_state *ldap_state, const char *naming_context)
+{
+ const char *attrs[] = { "namingContexts", NULL };
+ return smbldap_check_root_dse(ldap_state, attrs, naming_context);
+}
projects / samba / blobdiff