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https://github.com/samba-team/samba.git
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417b1ce487
I've got the cases besides gssapi...anyone know how to get those?
(This used to be commit c937e13522
)
1249 lines
30 KiB
C
1249 lines
30 KiB
C
/*
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Unix SMB/CIFS implementation.
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ads (active directory) utility library
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Copyright (C) Andrew Tridgell 2001
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Copyright (C) Remus Koos 2001
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Copyright (C) Jim McDonough 2002
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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_ADS
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/*
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connect to the LDAP server
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*/
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ADS_STATUS ads_connect(ADS_STRUCT *ads)
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{
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int version = LDAP_VERSION3;
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int code;
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ADS_STATUS status;
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ads->last_attempt = time(NULL);
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ads->ld = ldap_open(ads->ldap_server, ads->ldap_port);
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if (!ads->ld) {
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return ADS_ERROR_SYSTEM(errno);
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}
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status = ads_server_info(ads);
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if (!ADS_ERR_OK(status)) {
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DEBUG(1,("Failed to get ldap server info\n"));
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return status;
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}
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ldap_set_option(ads->ld, LDAP_OPT_PROTOCOL_VERSION, &version);
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#if KRB5_DNS_HACK
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/* this is a really nasty hack to avoid ADS DNS problems. It needs a patch
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to MIT kerberos to work (tridge) */
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{
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char *env;
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asprintf(&env, "KRB5_KDC_ADDRESS_%s", ads->server_realm);
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setenv(env, inet_ntoa(*interpret_addr2(ads->ldap_server)), 1);
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free(env);
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}
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#endif
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if (ads->password) {
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if ((code = ads_kinit_password(ads)))
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return ADS_ERROR_KRB5(code);
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}
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return ads_sasl_bind(ads);
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}
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char *ads_err2string(ADS_STATUS status)
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{
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switch(status.error_type) {
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case ADS_ERROR_LDAP:
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return ldap_err2string(status.rc);
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case ADS_ERROR_KRB5:
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return error_message(status.rc);
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case ADS_ERROR_GSS:
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return "gssapi error";
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case ADS_ERROR_SYSTEM:
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return strerror(status.rc);
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default:
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return "unknown error";
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}
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}
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/* Do a search with paged results. cookie must be null on the first
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call, and then returned on each subsequent call. It will be null
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again when the entire search is complete */
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ADS_STATUS ads_do_paged_search(ADS_STRUCT *ads, const char *bind_path,
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int scope, const char *exp,
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const char **attrs, void **res,
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int *count, void **cookie)
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{
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int rc;
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#define ADS_PAGE_CTL_OID "1.2.840.113556.1.4.319"
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#define ADS_NO_REFERRALS_OID "1.2.840.113556.1.4.1339"
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int version;
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LDAPControl PagedResults;
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LDAPControl NoReferrals;
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BerElement *berelem = NULL;
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struct berval *berval = NULL;
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LDAPControl *controls[3];
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LDAPControl **rcontrols, *cur_control;
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*res = NULL;
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ldap_get_option(ads->ld, LDAP_OPT_PROTOCOL_VERSION, &version);
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/* Paged results only available on ldap v3 or later, so check
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version first before using, since at connect time we're
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only v2. Not sure exactly why... */
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if (version < LDAP_VERSION3)
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return ADS_ERROR(LDAP_NOT_SUPPORTED);
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berelem = ber_alloc_t(LBER_USE_DER);
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if (cookie && *cookie) {
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ber_printf(berelem, "{iO}", (ber_int_t) 1000, *cookie);
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ber_bvfree(*cookie); /* don't need it from last time */
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*cookie = NULL;
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} else {
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ber_printf(berelem, "{io}", (ber_int_t) 1000, "", 0);
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}
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ber_flatten(berelem, &berval);
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PagedResults.ldctl_oid = ADS_PAGE_CTL_OID;
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PagedResults.ldctl_iscritical = (char) 1;
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PagedResults.ldctl_value.bv_len = berval->bv_len;
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PagedResults.ldctl_value.bv_val = berval->bv_val;
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NoReferrals.ldctl_oid = ADS_NO_REFERRALS_OID;
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NoReferrals.ldctl_iscritical = (char) 0;
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NoReferrals.ldctl_value.bv_len = 0;
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NoReferrals.ldctl_value.bv_val = "";
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controls[0] = &NoReferrals;
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controls[1] = &PagedResults;
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controls[2] = NULL;
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*res = NULL;
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/* we need to disable referrals as the openldap libs don't
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seem to handle them correctly. They result in the result
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record containing the server control being removed from the
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result list (tridge)
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leaving this in despite the control that says don't generate
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referrals, in case the server doesn't support it (jmcd)
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*/
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ldap_set_option(ads->ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF);
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rc = ldap_search_ext_s(ads->ld, bind_path, scope, exp,
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(char **) attrs, 0, controls, NULL,
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NULL, LDAP_NO_LIMIT,
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(LDAPMessage **)res);
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if (rc) {
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DEBUG(3,("ldap_search_ext_s(%s) -> %s\n", exp, ldap_err2string(rc)));
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return ADS_ERROR(rc);
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}
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ber_free(berelem, 1);
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ber_bvfree(berval);
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rc = ldap_parse_result(ads->ld, *res, NULL, NULL, NULL,
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NULL, &rcontrols, 0);
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if (!rcontrols) {
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return ADS_ERROR(rc);
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}
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for (cur_control=rcontrols[0]; cur_control; cur_control++) {
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if (strcmp(ADS_PAGE_CTL_OID, cur_control->ldctl_oid) == 0) {
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berelem = ber_init(&cur_control->ldctl_value);
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ber_scanf(berelem,"{iO}", (ber_int_t *) count,
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&berval);
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/* the berval is the cookie, but must be freed when
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it is all done */
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if (berval->bv_len) /* still more to do */
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*cookie=ber_bvdup(berval);
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else
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*cookie=NULL;
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ber_bvfree(berval);
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ber_free(berelem, 1);
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break;
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}
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}
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ldap_controls_free(rcontrols);
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return ADS_ERROR(rc);
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}
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/*
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this uses ads_do_paged_search() to return all entries in a large
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search. The interface is the same as ads_do_search(), which makes
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it more convenient than the paged interface
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*/
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ADS_STATUS ads_do_search_all(ADS_STRUCT *ads, const char *bind_path,
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int scope, const char *exp,
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const char **attrs, void **res)
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{
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void *cookie = NULL;
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int count = 0;
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ADS_STATUS status;
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status = ads_do_paged_search(ads, bind_path, scope, exp, attrs, res, &count, &cookie);
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if (!ADS_ERR_OK(status)) return status;
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while (cookie) {
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void *res2 = NULL;
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ADS_STATUS status2;
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LDAPMessage *msg, *next;
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status2 = ads_do_paged_search(ads, bind_path, scope, exp, attrs, &res2, &count, &cookie);
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if (!ADS_ERR_OK(status2)) break;
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/* this relies on the way that ldap_add_result_entry() works internally. I hope
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that this works on all ldap libs, but I have only tested with openldap */
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for (msg = ads_first_entry(ads, res2); msg; msg = next) {
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next = ads_next_entry(ads, msg);
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ldap_add_result_entry((LDAPMessage **)res, msg);
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}
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/* note that we do not free res2, as the memory is now
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part of the main returned list */
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}
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return status;
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}
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/*
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do a search with a timeout
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*/
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ADS_STATUS ads_do_search(ADS_STRUCT *ads, const char *bind_path, int scope,
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const char *exp,
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const char **attrs, void **res)
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{
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struct timeval timeout;
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int rc;
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timeout.tv_sec = ADS_SEARCH_TIMEOUT;
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timeout.tv_usec = 0;
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*res = NULL;
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rc = ldap_search_ext_s(ads->ld,
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bind_path, scope,
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exp, (char **) attrs, 0, NULL, NULL,
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&timeout, LDAP_NO_LIMIT, (LDAPMessage **)res);
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if (rc == LDAP_SIZELIMIT_EXCEEDED) {
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DEBUG(3,("Warning! sizelimit exceeded in ldap. Truncating.\n"));
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rc = 0;
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}
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return ADS_ERROR(rc);
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}
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/*
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do a general ADS search
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*/
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ADS_STATUS ads_search(ADS_STRUCT *ads, void **res,
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const char *exp,
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const char **attrs)
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{
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return ads_do_search(ads, ads->bind_path, LDAP_SCOPE_SUBTREE,
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exp, attrs, res);
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}
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/*
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do a search on a specific DistinguishedName
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*/
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ADS_STATUS ads_search_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(ads, dn, LDAP_SCOPE_BASE, "(objectclass=*)", attrs, res);
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}
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/*
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free up memory from a ads_search
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*/
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void ads_msgfree(ADS_STRUCT *ads, void *msg)
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{
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if (!msg) return;
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ldap_msgfree(msg);
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}
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/*
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free up memory from various ads requests
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*/
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void ads_memfree(ADS_STRUCT *ads, void *mem)
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{
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if (!mem) return;
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ldap_memfree(mem);
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}
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/*
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get a dn from search results
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*/
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char *ads_get_dn(ADS_STRUCT *ads, void *res)
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{
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return ldap_get_dn(ads->ld, res);
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}
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/*
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find a machine account given a hostname
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*/
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ADS_STATUS ads_find_machine_acct(ADS_STRUCT *ads, void **res, const char *host)
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{
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ADS_STATUS status;
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char *exp;
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const char *attrs[] = {"*", "nTSecurityDescriptor", NULL};
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/* the easiest way to find a machine account anywhere in the tree
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is to look for hostname$ */
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asprintf(&exp, "(samAccountName=%s$)", host);
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status = ads_search(ads, res, exp, attrs);
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free(exp);
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return status;
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}
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/*
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duplicate an already-assembled list of values so that it can be
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freed as part of the standard msgfree call
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*/
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static char **ads_dup_values(TALLOC_CTX *ctx, char **values)
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{
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char **newvals;
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int i;
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#define ADS_MAX_NUM_VALUES 32
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for (i=0; values[i] && i<ADS_MAX_NUM_VALUES; i++);
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if (!(newvals = talloc_zero(ctx, (i+1)*sizeof(char *))))
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return NULL;
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for (i=0; values[i] && i<ADS_MAX_NUM_VALUES; i++)
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newvals[i] = values[i];
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newvals[i] = NULL;
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return newvals;
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}
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/*
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initialize a list of mods
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*/
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ADS_MODLIST ads_init_mods(TALLOC_CTX *ctx)
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{
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#define ADS_MODLIST_ALLOC_SIZE 10
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LDAPMod **mods;
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if ((mods = (LDAPMod **) talloc_zero(ctx, sizeof(LDAPMod *) *
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(ADS_MODLIST_ALLOC_SIZE + 1))))
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/* -1 is safety to make sure we don't go over the end.
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need to reset it to NULL before doing ldap modify */
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mods[ADS_MODLIST_ALLOC_SIZE] = (LDAPMod *) -1;
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return mods;
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}
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/*
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add an attribute to the list, with values list already constructed
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*/
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static ADS_STATUS ads_modlist_add(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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int mod_op, const char *name, char **values)
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{
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int curmod;
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LDAPMod **modlist = (LDAPMod **) *mods;
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/* find the first empty slot */
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for (curmod=0; modlist[curmod] && modlist[curmod] != (LDAPMod *) -1;
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curmod++);
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if (modlist[curmod] == (LDAPMod *) -1) {
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if (!(modlist = talloc_realloc(ctx, modlist,
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(curmod+ADS_MODLIST_ALLOC_SIZE+1)*sizeof(LDAPMod *))))
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return ADS_ERROR(LDAP_NO_MEMORY);
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memset(&modlist[curmod], 0,
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ADS_MODLIST_ALLOC_SIZE*sizeof(LDAPMod *));
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modlist[curmod+ADS_MODLIST_ALLOC_SIZE] = (LDAPMod *) -1;
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*mods = modlist;
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}
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if (!(modlist[curmod] = talloc_zero(ctx, sizeof(LDAPMod))))
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return ADS_ERROR(LDAP_NO_MEMORY);
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modlist[curmod]->mod_type = name;
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if (mod_op & LDAP_MOD_BVALUES)
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modlist[curmod]->mod_bvalues = (struct berval **) values;
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else
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modlist[curmod]->mod_values = values;
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modlist[curmod]->mod_op = mod_op;
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return ADS_ERROR(LDAP_SUCCESS);
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}
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ADS_STATUS ads_mod_add_list(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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char *name, char **values)
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{
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char **newvals = ads_dup_values(ctx, values);
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if (newvals)
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return ads_modlist_add(ctx, mods, LDAP_MOD_ADD, name, newvals);
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else
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return ADS_ERROR(LDAP_NO_MEMORY);
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}
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ADS_STATUS ads_mod_repl_list(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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char *name, char **values)
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{
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char **newvals;
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if (values && *values) {
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if (!(newvals = ads_dup_values(ctx, values)))
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return ADS_ERROR(LDAP_NO_MEMORY);
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else
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return ads_modlist_add(ctx, mods, LDAP_MOD_REPLACE,
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name, newvals);
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}
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else
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return ads_modlist_add(ctx, mods, LDAP_MOD_DELETE, name, NULL);
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}
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/*
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add an attribute to the list, with values list to be built from args
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*/
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ADS_STATUS ads_mod_add_var(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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int mod_op, const char *name, ...)
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{
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va_list ap;
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int num_vals, i, do_op;
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char *value, **values;
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/* count the number of values */
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va_start(ap, name);
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for (num_vals=0; va_arg(ap, char *); num_vals++);
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va_end(ap);
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if (num_vals) {
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if (!(values = talloc_zero(ctx, sizeof(char *)*(num_vals+1))))
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return ADS_ERROR(LDAP_NO_MEMORY);
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va_start(ap, name);
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for (i=0; (value = (char *) va_arg(ap, char *)) &&
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i < num_vals; i++)
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values[i] = value;
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va_end(ap);
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values[i] = NULL;
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do_op = mod_op;
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} else {
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do_op = LDAP_MOD_DELETE;
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values = NULL;
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}
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return ads_modlist_add(ctx, mods, do_op, name, values);
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}
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ADS_STATUS ads_mod_add_ber(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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int mod_op, const char *name, ...)
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{
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va_list ap;
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int num_vals, i, do_op;
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char *value, **values;
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/* count the number of values */
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va_start(ap, name);
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for (num_vals=0; va_arg(ap, struct berval *); num_vals++);
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va_end(ap);
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if (num_vals) {
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if (!(values = talloc_zero(ctx, sizeof(struct berval) *
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(num_vals + 1))))
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return ADS_ERROR(LDAP_NO_MEMORY);
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va_start(ap, name);
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for (i=0; (value = (char *) va_arg(ap, char *)) &&
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i < num_vals; i++)
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values[i] = value;
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va_end(ap);
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values[i] = NULL;
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do_op = mod_op;
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} else {
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do_op = LDAP_MOD_DELETE;
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values = NULL;
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}
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do_op |= LDAP_MOD_BVALUES;
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return ads_modlist_add(ctx, mods, do_op, name, values);
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}
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ADS_STATUS ads_mod_repl(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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char *name, char *val)
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{
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if (val)
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return ads_mod_add_var(ctx, mods, LDAP_MOD_REPLACE,
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name, val, NULL);
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else
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return ads_mod_add_var(ctx, mods, LDAP_MOD_DELETE, name, NULL);
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}
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ADS_STATUS ads_mod_add(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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const char *name, const char *val)
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{
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return ads_mod_add_var(ctx, mods, LDAP_MOD_ADD, name, val, NULL);
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}
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ADS_STATUS ads_mod_add_len(TALLOC_CTX *ctx, ADS_MODLIST *mods,
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char *name, size_t size, char *val)
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{
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struct berval *bval = NULL;
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|
|
if (!(bval = talloc_zero(ctx, sizeof(struct berval *))))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
if (!(bval->bv_val = talloc_zero(ctx, sizeof(char *))))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
bval->bv_val = val;
|
|
bval->bv_len = size;
|
|
return ads_mod_add_ber(ctx, mods, LDAP_MOD_ADD, name, bval, NULL);
|
|
}
|
|
|
|
ADS_STATUS ads_mod_repl_len(TALLOC_CTX *ctx, ADS_MODLIST *mods,
|
|
const char *name, size_t size, char *val)
|
|
{
|
|
struct berval *bval = NULL;
|
|
|
|
if (!(bval = talloc_zero(ctx, sizeof(struct berval *))))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
if (!val)
|
|
return ads_mod_add_ber(ctx, mods, LDAP_MOD_DELETE, name, NULL);
|
|
else {
|
|
if (!(bval->bv_val = talloc_zero(ctx, sizeof(char *))))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
bval->bv_val = val;
|
|
bval->bv_len = size;
|
|
return ads_mod_add_ber(ctx, mods, LDAP_MOD_REPLACE, name,
|
|
bval, NULL);
|
|
}
|
|
}
|
|
|
|
ADS_STATUS ads_gen_mod(ADS_STRUCT *ads, const char *mod_dn, ADS_MODLIST mods)
|
|
{
|
|
int ret,i;
|
|
/*
|
|
this control is needed to modify that contains a currently
|
|
non-existent attribute (but allowable for the object) to run
|
|
*/
|
|
LDAPControl PermitModify = {
|
|
"1.2.840.113556.1.4.1413",
|
|
{0, NULL},
|
|
(char) 1};
|
|
LDAPControl *controls[2];
|
|
|
|
controls[0] = &PermitModify;
|
|
controls[1] = NULL;
|
|
|
|
/* find the end of the list, marked by NULL or -1 */
|
|
for(i=0;(mods[i]!=0)&&(mods[i]!=(LDAPMod *) -1);i++);
|
|
/* make sure the end of the list is NULL */
|
|
mods[i] = NULL;
|
|
ret = ldap_modify_ext_s(ads->ld, mod_dn, (LDAPMod **) mods,
|
|
controls, NULL);
|
|
return ADS_ERROR(ret);
|
|
}
|
|
|
|
ADS_STATUS ads_gen_add(ADS_STRUCT *ads, const char *new_dn, ADS_MODLIST mods)
|
|
{
|
|
int i;
|
|
|
|
/* find the end of the list, marked by NULL or -1 */
|
|
for(i=0;(mods[i]!=0)&&(mods[i]!=(LDAPMod *) -1);i++);
|
|
/* make sure the end of the list is NULL */
|
|
mods[i] = NULL;
|
|
|
|
return ADS_ERROR(ldap_add_s(ads->ld, new_dn, mods));
|
|
}
|
|
|
|
ADS_STATUS ads_del_dn(ADS_STRUCT *ads, char *del_dn)
|
|
{
|
|
return ADS_ERROR(ldap_delete(ads->ld, del_dn));
|
|
}
|
|
|
|
/*
|
|
build an org unit string
|
|
if org unit is Computers or blank then assume a container, otherwise
|
|
assume a \ separated list of organisational units
|
|
caller must free
|
|
*/
|
|
char *ads_ou_string(const char *org_unit)
|
|
{
|
|
if (!org_unit || !*org_unit || strcasecmp(org_unit, "Computers") == 0) {
|
|
return strdup("cn=Computers");
|
|
}
|
|
|
|
return ads_build_path(org_unit, "\\/", "ou=", 1);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
add a machine account to the ADS server
|
|
*/
|
|
static ADS_STATUS ads_add_machine_acct(ADS_STRUCT *ads, const char *hostname,
|
|
const char *org_unit)
|
|
{
|
|
ADS_STATUS ret;
|
|
char *host_spn, *host_upn, *new_dn, *samAccountName, *controlstr;
|
|
char *ou_str;
|
|
TALLOC_CTX *ctx;
|
|
ADS_MODLIST mods;
|
|
|
|
if (!(ctx = talloc_init_named("machine_account")))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
ret = ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
if (!(host_spn = talloc_asprintf(ctx, "HOST/%s", hostname)))
|
|
goto done;
|
|
if (!(host_upn = talloc_asprintf(ctx, "%s@%s", host_spn, ads->realm)))
|
|
goto done;
|
|
ou_str = ads_ou_string(org_unit);
|
|
new_dn = talloc_asprintf(ctx, "cn=%s,%s,%s", hostname, ou_str,
|
|
ads->bind_path);
|
|
free(ou_str);
|
|
if (!new_dn)
|
|
goto done;
|
|
|
|
if (!(samAccountName = talloc_asprintf(ctx, "%s$", hostname)))
|
|
goto done;
|
|
if (!(controlstr = talloc_asprintf(ctx, "%u",
|
|
UF_DONT_EXPIRE_PASSWD | UF_WORKSTATION_TRUST_ACCOUNT |
|
|
UF_TRUSTED_FOR_DELEGATION | UF_USE_DES_KEY_ONLY)))
|
|
goto done;
|
|
|
|
if (!(mods = ads_init_mods(ctx)))
|
|
goto done;
|
|
|
|
ads_mod_add(ctx, &mods, "cn", hostname);
|
|
ads_mod_add(ctx, &mods, "sAMAccountName", samAccountName);
|
|
ads_mod_add_var(ctx, &mods, LDAP_MOD_ADD, "objectClass",
|
|
"top", "person", "organizationalPerson",
|
|
"user", "computer", NULL);
|
|
ads_mod_add(ctx, &mods, "userPrincipalName", host_upn);
|
|
ads_mod_add(ctx, &mods, "servicePrincipalName", host_spn);
|
|
ads_mod_add(ctx, &mods, "dNSHostName", hostname);
|
|
ads_mod_add(ctx, &mods, "userAccountControl", controlstr);
|
|
ads_mod_add(ctx, &mods, "operatingSystem", "Samba");
|
|
ads_mod_add(ctx, &mods, "operatingSystemVersion", VERSION);
|
|
|
|
ads_gen_add(ads, new_dn, mods);
|
|
ret = ads_set_machine_sd(ads, hostname, new_dn);
|
|
|
|
done:
|
|
talloc_destroy(ctx);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
dump a binary result from ldap
|
|
*/
|
|
static void dump_binary(const char *field, struct berval **values)
|
|
{
|
|
int i, j;
|
|
for (i=0; values[i]; i++) {
|
|
printf("%s: ", field);
|
|
for (j=0; j<values[i]->bv_len; j++) {
|
|
printf("%02X", (unsigned char)values[i]->bv_val[j]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
dump a sid result from ldap
|
|
*/
|
|
static void dump_sid(const char *field, struct berval **values)
|
|
{
|
|
int i;
|
|
for (i=0; values[i]; i++) {
|
|
DOM_SID sid;
|
|
sid_parse(values[i]->bv_val, values[i]->bv_len, &sid);
|
|
printf("%s: %s\n", field, sid_string_static(&sid));
|
|
}
|
|
}
|
|
|
|
/*
|
|
dump ntSecurityDescriptor
|
|
*/
|
|
static void dump_sd(const char *filed, struct berval **values)
|
|
{
|
|
prs_struct ps;
|
|
|
|
SEC_DESC *psd = 0;
|
|
TALLOC_CTX *ctx = 0;
|
|
|
|
if (!(ctx = talloc_init_named("sec_io_desc")))
|
|
return;
|
|
|
|
/* prepare data */
|
|
prs_init(&ps, values[0]->bv_len, ctx, UNMARSHALL);
|
|
prs_append_data(&ps, values[0]->bv_val, values[0]->bv_len);
|
|
ps.data_offset = 0;
|
|
|
|
/* parse secdesc */
|
|
if (!sec_io_desc("sd", &psd, &ps, 1)) {
|
|
prs_mem_free(&ps);
|
|
talloc_destroy(ctx);
|
|
return;
|
|
}
|
|
if (psd) ads_disp_sd(psd);
|
|
|
|
prs_mem_free(&ps);
|
|
talloc_destroy(ctx);
|
|
}
|
|
|
|
/*
|
|
dump a string result from ldap
|
|
*/
|
|
static void dump_string(const char *field, struct berval **values)
|
|
{
|
|
int i;
|
|
for (i=0; values[i]; i++) {
|
|
printf("%s: %s\n", field, values[i]->bv_val);
|
|
}
|
|
}
|
|
|
|
/*
|
|
dump a field from LDAP on stdout
|
|
used for debugging
|
|
*/
|
|
|
|
static void ads_dump_field(char *field, void **values, void *data_area)
|
|
{
|
|
struct {
|
|
char *name;
|
|
void (*handler)(const char *, struct berval **);
|
|
} handlers[] = {
|
|
{"objectGUID", dump_binary},
|
|
{"nTSecurityDescriptor", dump_sd},
|
|
{"objectSid", dump_sid},
|
|
{NULL, NULL}
|
|
};
|
|
int i;
|
|
|
|
if (!field) { /* must be end of an entry */
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
for (i=0; handlers[i].name; i++) {
|
|
if (StrCaseCmp(handlers[i].name, field) == 0) {
|
|
handlers[i].handler(field, (struct berval **) values);
|
|
break;
|
|
}
|
|
}
|
|
if (!handlers[i].name) {
|
|
dump_string(field, (struct berval **) values);
|
|
}
|
|
}
|
|
|
|
/*
|
|
dump a result from LDAP on stdout
|
|
used for debugging
|
|
*/
|
|
|
|
void ads_dump(ADS_STRUCT *ads, void *res)
|
|
{
|
|
ads_process_results(ads, res, ads_dump_field, NULL);
|
|
}
|
|
|
|
/*
|
|
Walk through results, calling a function for each entry found.
|
|
The function receives a field name, a berval * array of values,
|
|
and a data area passed through from the start. The function is
|
|
called once with null for field and values at the end of each
|
|
entry.
|
|
*/
|
|
void ads_process_results(ADS_STRUCT *ads, void *res,
|
|
void(*fn)(char *, void **, void *),
|
|
void *data_area)
|
|
{
|
|
void *msg;
|
|
|
|
for (msg = ads_first_entry(ads, res); msg;
|
|
msg = ads_next_entry(ads, msg)) {
|
|
char *field;
|
|
BerElement *b;
|
|
|
|
for (field = ldap_first_attribute(ads->ld, (LDAPMessage *)msg, &b);
|
|
field;
|
|
field = ldap_next_attribute(ads->ld, (LDAPMessage *)msg, b)) {
|
|
struct berval **values;
|
|
|
|
values = ldap_get_values_len(ads->ld, (LDAPMessage *)msg, field);
|
|
fn(field, (void **) values, data_area);
|
|
|
|
ldap_value_free_len(values);
|
|
ldap_memfree(field);
|
|
}
|
|
ber_free(b, 0);
|
|
fn(NULL, NULL, data_area); /* completed an entry */
|
|
|
|
}
|
|
}
|
|
|
|
void ads_process_entry(ADS_STRUCT *ads, void *msg,
|
|
void(*fn)(ADS_STRUCT *, char *, void **, void *),
|
|
void *data_area)
|
|
{
|
|
char *field;
|
|
BerElement *b;
|
|
|
|
for (field = ldap_first_attribute(ads->ld, (LDAPMessage *)msg, &b);
|
|
field;
|
|
field = ldap_next_attribute(ads->ld, (LDAPMessage *)msg, b)) {
|
|
struct berval **values;
|
|
|
|
values = ldap_get_values_len(ads->ld, (LDAPMessage *)msg, field);
|
|
fn(ads, field, (void **) values, data_area);
|
|
|
|
ldap_value_free_len(values);
|
|
ldap_memfree(field);
|
|
}
|
|
ber_free(b, 0);
|
|
}
|
|
/*
|
|
count how many replies are in a LDAPMessage
|
|
*/
|
|
int ads_count_replies(ADS_STRUCT *ads, void *res)
|
|
{
|
|
return ldap_count_entries(ads->ld, (LDAPMessage *)res);
|
|
}
|
|
|
|
/*
|
|
join a machine to a realm, creating the machine account
|
|
and setting the machine password
|
|
*/
|
|
ADS_STATUS ads_join_realm(ADS_STRUCT *ads, const char *hostname, const char *org_unit)
|
|
{
|
|
ADS_STATUS status;
|
|
LDAPMessage *res;
|
|
char *host;
|
|
|
|
/* hostname must be lowercase */
|
|
host = strdup(hostname);
|
|
strlower(host);
|
|
|
|
status = ads_find_machine_acct(ads, (void **)&res, host);
|
|
if (ADS_ERR_OK(status) && ads_count_replies(ads, res) == 1) {
|
|
DEBUG(0, ("Host account for %s already exists - deleting old account\n", host));
|
|
status = ads_leave_realm(ads, host);
|
|
if (!ADS_ERR_OK(status)) {
|
|
DEBUG(0, ("Failed to delete host '%s' from the '%s' realm.\n",
|
|
host, ads->realm));
|
|
return status;
|
|
}
|
|
}
|
|
|
|
status = ads_add_machine_acct(ads, host, org_unit);
|
|
if (!ADS_ERR_OK(status)) {
|
|
DEBUG(0, ("ads_add_machine_acct: %s\n", ads_errstr(status)));
|
|
return status;
|
|
}
|
|
|
|
status = ads_find_machine_acct(ads, (void **)&res, host);
|
|
if (!ADS_ERR_OK(status)) {
|
|
DEBUG(0, ("Host account test failed\n"));
|
|
return status;
|
|
}
|
|
|
|
free(host);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
delete a machine from the realm
|
|
*/
|
|
ADS_STATUS ads_leave_realm(ADS_STRUCT *ads, const char *hostname)
|
|
{
|
|
ADS_STATUS status;
|
|
void *res;
|
|
char *hostnameDN, *host;
|
|
int rc;
|
|
|
|
/* hostname must be lowercase */
|
|
host = strdup(hostname);
|
|
strlower(host);
|
|
|
|
status = ads_find_machine_acct(ads, &res, host);
|
|
if (!ADS_ERR_OK(status)) {
|
|
DEBUG(0, ("Host account for %s does not exist.\n", host));
|
|
return status;
|
|
}
|
|
|
|
hostnameDN = ads_get_dn(ads, (LDAPMessage *)res);
|
|
rc = ldap_delete_s(ads->ld, hostnameDN);
|
|
ads_memfree(ads, hostnameDN);
|
|
if (rc != LDAP_SUCCESS) {
|
|
return ADS_ERROR(rc);
|
|
}
|
|
|
|
status = ads_find_machine_acct(ads, &res, host);
|
|
if (ADS_ERR_OK(status) && ads_count_replies(ads, res) == 1) {
|
|
DEBUG(0, ("Failed to remove host account.\n"));
|
|
return status;
|
|
}
|
|
|
|
free(host);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
add machine account to existing security descriptor
|
|
*/
|
|
ADS_STATUS ads_set_machine_sd(ADS_STRUCT *ads, const char *hostname, char *dn)
|
|
{
|
|
const char *attrs[] = {"ntSecurityDescriptor", "objectSid", 0};
|
|
char *exp = 0;
|
|
size_t sd_size = 0;
|
|
struct berval **bvals = 0;
|
|
prs_struct ps;
|
|
prs_struct ps_wire;
|
|
|
|
LDAPMessage *res = 0;
|
|
LDAPMessage *msg = 0;
|
|
ADS_MODLIST mods = 0;
|
|
|
|
NTSTATUS status;
|
|
ADS_STATUS ret;
|
|
DOM_SID sid;
|
|
SEC_DESC *psd = 0;
|
|
TALLOC_CTX *ctx = 0;
|
|
|
|
if (!ads) return ADS_ERROR(LDAP_SERVER_DOWN);
|
|
|
|
ret = ADS_ERROR(LDAP_SUCCESS);
|
|
|
|
asprintf(&exp, "(samAccountName=%s$)", hostname);
|
|
ret = ads_search(ads, (void *) &res, exp, attrs);
|
|
|
|
if (!ADS_ERR_OK(ret)) return ret;
|
|
|
|
msg = ads_first_entry(ads, res);
|
|
bvals = ldap_get_values_len(ads->ld, msg, attrs[0]);
|
|
ads_pull_sid(ads, msg, attrs[1], &sid);
|
|
ads_msgfree(ads, res);
|
|
#if 0
|
|
file_save("/tmp/sec_desc.old", bvals[0]->bv_val, bvals[0]->bv_len);
|
|
#endif
|
|
if (!(ctx = talloc_init_named("sec_io_desc")))
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
prs_init(&ps, bvals[0]->bv_len, ctx, UNMARSHALL);
|
|
prs_append_data(&ps, bvals[0]->bv_val, bvals[0]->bv_len);
|
|
ps.data_offset = 0;
|
|
ldap_value_free_len(bvals);
|
|
|
|
if (!sec_io_desc("sd", &psd, &ps, 1))
|
|
goto ads_set_sd_error;
|
|
|
|
status = sec_desc_add_sid(ctx, &psd, &sid, SEC_RIGHTS_FULL_CTRL, &sd_size);
|
|
|
|
if (!NT_STATUS_IS_OK(status))
|
|
goto ads_set_sd_error;
|
|
|
|
prs_init(&ps_wire, sd_size, ctx, MARSHALL);
|
|
if (!sec_io_desc("sd_wire", &psd, &ps_wire, 1))
|
|
goto ads_set_sd_error;
|
|
|
|
#if 0
|
|
file_save("/tmp/sec_desc.new", ps_wire.data_p, sd_size);
|
|
#endif
|
|
if (!(mods = ads_init_mods(ctx))) return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
ads_mod_repl_len(ctx, &mods, attrs[0], sd_size, ps_wire.data_p);
|
|
ret = ads_gen_mod(ads, dn, mods);
|
|
|
|
prs_mem_free(&ps);
|
|
prs_mem_free(&ps_wire);
|
|
talloc_destroy(ctx);
|
|
return ret;
|
|
|
|
ads_set_sd_error:
|
|
prs_mem_free(&ps);
|
|
prs_mem_free(&ps_wire);
|
|
talloc_destroy(ctx);
|
|
return ADS_ERROR(LDAP_NO_MEMORY);
|
|
}
|
|
|
|
ADS_STATUS ads_set_machine_password(ADS_STRUCT *ads,
|
|
const char *hostname,
|
|
const char *password)
|
|
{
|
|
ADS_STATUS status;
|
|
char *host = strdup(hostname);
|
|
char *principal;
|
|
|
|
if (!ads->kdc_server) {
|
|
DEBUG(0, ("Unable to find KDC server\n"));
|
|
return ADS_ERROR(LDAP_SERVER_DOWN);
|
|
}
|
|
|
|
strlower(host);
|
|
|
|
asprintf(&principal, "%s@%s", host, ads->realm);
|
|
|
|
status = krb5_set_password(ads->kdc_server, principal, password);
|
|
|
|
free(host);
|
|
free(principal);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
pull the first entry from a ADS result
|
|
*/
|
|
void *ads_first_entry(ADS_STRUCT *ads, void *res)
|
|
{
|
|
return (void *)ldap_first_entry(ads->ld, (LDAPMessage *)res);
|
|
}
|
|
|
|
/*
|
|
pull the next entry from a ADS result
|
|
*/
|
|
void *ads_next_entry(ADS_STRUCT *ads, void *res)
|
|
{
|
|
return (void *)ldap_next_entry(ads->ld, (LDAPMessage *)res);
|
|
}
|
|
|
|
/*
|
|
pull a single string from a ADS result
|
|
*/
|
|
char *ads_pull_string(ADS_STRUCT *ads,
|
|
TALLOC_CTX *mem_ctx, void *msg, const char *field)
|
|
{
|
|
char **values;
|
|
char *ret = NULL;
|
|
|
|
values = ldap_get_values(ads->ld, msg, field);
|
|
if (!values) return NULL;
|
|
|
|
if (values[0]) {
|
|
ret = talloc_strdup(mem_ctx, values[0]);
|
|
}
|
|
ldap_value_free(values);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
pull a single uint32 from a ADS result
|
|
*/
|
|
BOOL ads_pull_uint32(ADS_STRUCT *ads,
|
|
void *msg, const char *field, uint32 *v)
|
|
{
|
|
char **values;
|
|
|
|
values = ldap_get_values(ads->ld, msg, field);
|
|
if (!values) return False;
|
|
if (!values[0]) {
|
|
ldap_value_free(values);
|
|
return False;
|
|
}
|
|
|
|
*v = atoi(values[0]);
|
|
ldap_value_free(values);
|
|
return True;
|
|
}
|
|
|
|
/*
|
|
pull a single DOM_SID from a ADS result
|
|
*/
|
|
BOOL ads_pull_sid(ADS_STRUCT *ads,
|
|
void *msg, const char *field, DOM_SID *sid)
|
|
{
|
|
struct berval **values;
|
|
BOOL ret = False;
|
|
|
|
values = ldap_get_values_len(ads->ld, msg, field);
|
|
|
|
if (!values) return False;
|
|
|
|
if (values[0]) {
|
|
ret = sid_parse(values[0]->bv_val, values[0]->bv_len, sid);
|
|
}
|
|
|
|
ldap_value_free_len(values);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
pull an array of DOM_SIDs from a ADS result
|
|
return the count of SIDs pulled
|
|
*/
|
|
int ads_pull_sids(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
|
|
void *msg, const char *field, DOM_SID **sids)
|
|
{
|
|
struct berval **values;
|
|
BOOL ret;
|
|
int count, i;
|
|
|
|
values = ldap_get_values_len(ads->ld, msg, field);
|
|
|
|
if (!values) return 0;
|
|
|
|
for (i=0; values[i]; i++) /* nop */ ;
|
|
|
|
(*sids) = talloc(mem_ctx, sizeof(DOM_SID) * i);
|
|
|
|
count = 0;
|
|
for (i=0; values[i]; i++) {
|
|
ret = sid_parse(values[i]->bv_val, values[i]->bv_len, &(*sids)[count]);
|
|
if (ret) count++;
|
|
}
|
|
|
|
ldap_value_free_len(values);
|
|
return count;
|
|
}
|
|
|
|
|
|
/* find the update serial number - this is the core of the ldap cache */
|
|
ADS_STATUS ads_USN(ADS_STRUCT *ads, uint32 *usn)
|
|
{
|
|
const char *attrs[] = {"highestCommittedUSN", NULL};
|
|
ADS_STATUS status;
|
|
void *res;
|
|
|
|
status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
|
|
if (!ADS_ERR_OK(status)) return status;
|
|
|
|
if (ads_count_replies(ads, res) != 1) {
|
|
return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
|
|
}
|
|
|
|
ads_pull_uint32(ads, res, "highestCommittedUSN", usn);
|
|
ads_msgfree(ads, res);
|
|
return ADS_SUCCESS;
|
|
}
|
|
|
|
|
|
/* find the servers name and realm - this can be done before authentication
|
|
The ldapServiceName field on w2k looks like this:
|
|
vnet3.home.samba.org:win2000-vnet3$@VNET3.HOME.SAMBA.ORG
|
|
*/
|
|
ADS_STATUS ads_server_info(ADS_STRUCT *ads)
|
|
{
|
|
const char *attrs[] = {"ldapServiceName", NULL};
|
|
ADS_STATUS status;
|
|
void *res;
|
|
char **values;
|
|
char *p;
|
|
|
|
status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
|
|
if (!ADS_ERR_OK(status)) return status;
|
|
|
|
values = ldap_get_values(ads->ld, res, "ldapServiceName");
|
|
if (!values || !values[0]) return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
|
|
|
|
p = strchr(values[0], ':');
|
|
if (!p) {
|
|
ldap_value_free(values);
|
|
ldap_msgfree(res);
|
|
return ADS_ERROR(LDAP_DECODING_ERROR);
|
|
}
|
|
|
|
SAFE_FREE(ads->ldap_server_name);
|
|
|
|
ads->ldap_server_name = strdup(p+1);
|
|
p = strchr(ads->ldap_server_name, '$');
|
|
if (!p || p[1] != '@') {
|
|
ldap_value_free(values);
|
|
ldap_msgfree(res);
|
|
SAFE_FREE(ads->ldap_server_name);
|
|
return ADS_ERROR(LDAP_DECODING_ERROR);
|
|
}
|
|
|
|
*p = 0;
|
|
|
|
SAFE_FREE(ads->server_realm);
|
|
SAFE_FREE(ads->bind_path);
|
|
|
|
ads->server_realm = strdup(p+2);
|
|
ads->bind_path = ads_build_dn(ads->server_realm);
|
|
|
|
/* in case the realm isn't configured in smb.conf */
|
|
if (!ads->realm || !ads->realm[0]) {
|
|
SAFE_FREE(ads->realm);
|
|
ads->realm = strdup(ads->server_realm);
|
|
}
|
|
|
|
DEBUG(3,("got ldap server name %s@%s\n",
|
|
ads->ldap_server_name, ads->realm));
|
|
|
|
return ADS_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
find the list of trusted domains
|
|
*/
|
|
ADS_STATUS ads_trusted_domains(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
|
|
int *num_trusts, char ***names, DOM_SID **sids)
|
|
{
|
|
const char *attrs[] = {"flatName", "securityIdentifier", NULL};
|
|
ADS_STATUS status;
|
|
void *res, *msg;
|
|
int count, i;
|
|
|
|
*num_trusts = 0;
|
|
|
|
status = ads_search(ads, &res, "(objectcategory=trustedDomain)", attrs);
|
|
if (!ADS_ERR_OK(status)) return status;
|
|
|
|
count = ads_count_replies(ads, res);
|
|
if (count == 0) {
|
|
ads_msgfree(ads, res);
|
|
return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
|
|
}
|
|
|
|
(*names) = talloc(mem_ctx, sizeof(char *) * count);
|
|
(*sids) = talloc(mem_ctx, sizeof(DOM_SID) * count);
|
|
if (! *names || ! *sids) return ADS_ERROR(LDAP_NO_MEMORY);
|
|
|
|
for (i=0, msg = ads_first_entry(ads, res); msg; msg = ads_next_entry(ads, msg)) {
|
|
(*names)[i] = ads_pull_string(ads, mem_ctx, msg, "flatName");
|
|
if (ads_pull_sid(ads, msg, "securityIdentifier", &(*sids)[i])) {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
ads_msgfree(ads, res);
|
|
|
|
*num_trusts = i;
|
|
|
|
return ADS_SUCCESS;
|
|
}
|
|
|
|
/* find the domain sid for our domain */
|
|
ADS_STATUS ads_domain_sid(ADS_STRUCT *ads, DOM_SID *sid)
|
|
{
|
|
const char *attrs[] = {"objectSid", NULL};
|
|
void *res;
|
|
ADS_STATUS rc;
|
|
|
|
rc = ads_do_search(ads, ads->bind_path, LDAP_SCOPE_BASE, "(objectclass=*)",
|
|
attrs, &res);
|
|
if (!ADS_ERR_OK(rc)) return rc;
|
|
if (!ads_pull_sid(ads, res, "objectSid", sid)) {
|
|
return ADS_ERROR_SYSTEM(ENOENT);
|
|
}
|
|
ads_msgfree(ads, res);
|
|
|
|
return ADS_SUCCESS;
|
|
}
|
|
|
|
#endif
|