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109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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Some Helpful wrappers on LDAP
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Copyright (C) Andrew Tridgell 2001
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#ifdef HAVE_LDAP
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/*
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a wrapper around ldap_search_s that retries depending on the error code
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this is supposed to catch dropped connections and auto-reconnect
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*/
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ADS_STATUS ads_do_search_retry(ADS_STRUCT *ads, const char *bind_path, int scope,
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const char *expr,
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const char **attrs, void **res)
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{
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ADS_STATUS status = ADS_SUCCESS;
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int count = 3;
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char *bp;
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*res = NULL;
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if (!ads->ld &&
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time(NULL) - ads->last_attempt < ADS_RECONNECT_TIME) {
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return ADS_ERROR(LDAP_SERVER_DOWN);
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}
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bp = SMB_STRDUP(bind_path);
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if (!bp) {
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return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
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}
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while (count--) {
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*res = NULL;
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status = ads_do_search_all(ads, bp, scope, expr, attrs, res);
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if (ADS_ERR_OK(status)) {
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DEBUG(5,("Search for %s gave %d replies\n",
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expr, ads_count_replies(ads, *res)));
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SAFE_FREE(bp);
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return status;
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}
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if (*res)
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ads_msgfree(ads, *res);
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*res = NULL;
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DEBUG(3,("Reopening ads connection to realm '%s' after error %s\n",
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ads->config.realm, ads_errstr(status)));
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if (ads->ld) {
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ldap_unbind(ads->ld);
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}
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ads->ld = NULL;
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status = ads_connect(ads);
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if (!ADS_ERR_OK(status)) {
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DEBUG(1,("ads_search_retry: failed to reconnect (%s)\n",
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ads_errstr(status)));
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ads_destroy(&ads);
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SAFE_FREE(bp);
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return status;
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}
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}
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SAFE_FREE(bp);
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if (!ADS_ERR_OK(status))
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DEBUG(1,("ads reopen failed after error %s\n",
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ads_errstr(status)));
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return status;
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}
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ADS_STATUS ads_search_retry(ADS_STRUCT *ads, void **res,
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const char *expr,
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const char **attrs)
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{
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return ads_do_search_retry(ads, ads->config.bind_path, LDAP_SCOPE_SUBTREE,
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expr, attrs, res);
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}
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ADS_STATUS ads_search_retry_dn(ADS_STRUCT *ads, void **res,
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const char *dn,
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const char **attrs)
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{
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return ads_do_search_retry(ads, dn, LDAP_SCOPE_BASE,
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"(objectclass=*)", attrs, res);
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}
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#endif
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