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samba-mirror/source3/libads/ldap_schema.c

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/*
Unix SMB/CIFS implementation.
ads (active directory) utility library
Copyright (C) Guenther Deschner 2005-2006
Copyright (C) Gerald (Jerry) Carter 2006
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"
#ifdef HAVE_LDAP
ADS_STATUS ads_get_attrnames_by_oids(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
const char *schema_path,
const char **OIDs, size_t num_OIDs,
char ***OIDs_out, char ***names, size_t *count)
{
ADS_STATUS status;
void *res = NULL;
LDAPMessage *msg;
char *expr = NULL;
const char *attrs[] = { "lDAPDisplayName", "attributeId", NULL };
int i = 0, p = 0;
if (!ads || !mem_ctx || !names || !count || !OIDs || !OIDs_out) {
return ADS_ERROR(LDAP_PARAM_ERROR);
}
if (num_OIDs == 0 || OIDs[0] == NULL) {
return ADS_ERROR_NT(NT_STATUS_NONE_MAPPED);
}
if ((expr = talloc_asprintf(mem_ctx, "(|")) == NULL) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
for (i=0; i<num_OIDs; i++) {
if ((expr = talloc_asprintf_append(expr, "(attributeId=%s)",
OIDs[i])) == NULL) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
}
if ((expr = talloc_asprintf_append(expr, ")")) == NULL) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
status = ads_do_search_retry(ads, schema_path,
LDAP_SCOPE_SUBTREE, expr, attrs, &res);
if (!ADS_ERR_OK(status)) {
return status;
}
*count = ads_count_replies(ads, res);
if (*count == 0 || !res) {
status = ADS_ERROR_NT(NT_STATUS_NONE_MAPPED);
goto out;
}
if (((*names) = TALLOC_ARRAY(mem_ctx, char *, *count)) == NULL) {
status = ADS_ERROR(LDAP_NO_MEMORY);
goto out;
}
if (((*OIDs_out) = TALLOC_ARRAY(mem_ctx, char *, *count)) == NULL) {
status = ADS_ERROR(LDAP_NO_MEMORY);
goto out;
}
for (msg = ads_first_entry(ads, res); msg != NULL;
msg = ads_next_entry(ads, msg)) {
(*names)[p] = ads_pull_string(ads, mem_ctx, msg,
"lDAPDisplayName");
(*OIDs_out)[p] = ads_pull_string(ads, mem_ctx, msg,
"attributeId");
if (((*names)[p] == NULL) || ((*OIDs_out)[p] == NULL)) {
status = ADS_ERROR(LDAP_NO_MEMORY);
goto out;
}
p++;
}
if (*count < num_OIDs) {
status = ADS_ERROR_NT(STATUS_SOME_UNMAPPED);
goto out;
}
status = ADS_ERROR(LDAP_SUCCESS);
out:
ads_msgfree(ads, res);
return status;
}
const char *ads_get_attrname_by_oid(ADS_STRUCT *ads, const char *schema_path, TALLOC_CTX *mem_ctx, const char * OID)
{
ADS_STATUS rc;
int count = 0;
void *res = NULL;
char *expr = NULL;
const char *attrs[] = { "lDAPDisplayName", NULL };
char *result;
if (ads == NULL || mem_ctx == NULL || OID == NULL) {
goto failed;
}
expr = talloc_asprintf(mem_ctx, "(attributeId=%s)", OID);
if (expr == NULL) {
goto failed;
}
rc = ads_do_search_retry(ads, schema_path, LDAP_SCOPE_SUBTREE,
expr, attrs, &res);
if (!ADS_ERR_OK(rc)) {
goto failed;
}
count = ads_count_replies(ads, res);
if (count == 0 || !res) {
goto failed;
}
result = ads_pull_string(ads, mem_ctx, res, "lDAPDisplayName");
ads_msgfree(ads, res);
return result;
failed:
DEBUG(0,("ads_get_attrname_by_oid: failed to retrieve name for oid: %s\n",
OID));
ads_msgfree(ads, res);
return NULL;
}
/*********************************************************************
*********************************************************************/
static ADS_STATUS ads_schema_path(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, char **schema_path)
{
ADS_STATUS status;
void *res;
const char *schema;
const char *attrs[] = { "schemaNamingContext", NULL };
status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
if (!ADS_ERR_OK(status)) {
return status;
}
if ( (schema = ads_pull_string(ads, mem_ctx, res, "schemaNamingContext")) == NULL ) {
return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
}
if ( (*schema_path = talloc_strdup(mem_ctx, schema)) == NULL ) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
ads_msgfree(ads, res);
return status;
}
/**
* Check for "Services for Unix" or rfc2307 Schema and load some attributes into the ADS_STRUCT
* @param ads connection to ads server
* @param enum mapping type
* @return BOOL status of search (False if one or more attributes couldn't be
* found in Active Directory)
**/
ADS_STATUS ads_check_posix_schema_mapping(ADS_STRUCT *ads, enum wb_posix_mapping map_type)
{
TALLOC_CTX *ctx = NULL;
ADS_STATUS status;
char **oids_out, **names_out;
size_t num_names;
char *schema_path = NULL;
ADS_STRUCT *ads_s = ads;
int i;
const char *oids_sfu[] = { ADS_ATTR_SFU_UIDNUMBER_OID,
ADS_ATTR_SFU_GIDNUMBER_OID,
ADS_ATTR_SFU_HOMEDIR_OID,
ADS_ATTR_SFU_SHELL_OID,
ADS_ATTR_SFU_GECOS_OID};
const char *oids_rfc2307[] = { ADS_ATTR_RFC2307_UIDNUMBER_OID,
ADS_ATTR_RFC2307_GIDNUMBER_OID,
ADS_ATTR_RFC2307_HOMEDIR_OID,
ADS_ATTR_RFC2307_SHELL_OID,
ADS_ATTR_RFC2307_GECOS_OID };
DEBUG(10,("ads_check_posix_schema_mapping\n"));
switch (map_type) {
case WB_POSIX_MAP_TEMPLATE:
case WB_POSIX_MAP_UNIXINFO:
DEBUG(10,("ads_check_posix_schema_mapping: nothing to do\n"));
return ADS_ERROR(LDAP_SUCCESS);
case WB_POSIX_MAP_SFU:
case WB_POSIX_MAP_RFC2307:
break;
default:
DEBUG(0,("ads_check_posix_schema_mapping: "
"unknown enum %d\n", map_type));
return ADS_ERROR(LDAP_PARAM_ERROR);
}
ads->schema.posix_uidnumber_attr = NULL;
ads->schema.posix_gidnumber_attr = NULL;
ads->schema.posix_homedir_attr = NULL;
ads->schema.posix_shell_attr = NULL;
ads->schema.posix_gecos_attr = NULL;
ctx = talloc_init("ads_check_posix_schema_mapping");
if (ctx == NULL) {
return ADS_ERROR(LDAP_NO_MEMORY);
}
/* establish a new ldap tcp session if necessary */
if (!ads->ld) {
if ((ads_s = ads_init(ads->server.realm, ads->server.workgroup,
ads->server.ldap_server)) == NULL) {
status = ADS_ERROR(LDAP_SERVER_DOWN);
goto done;
}
ads_s->auth.flags = ADS_AUTH_ANON_BIND;
status = ads_connect(ads_s);
if (!ADS_ERR_OK(status)) {
goto done;
}
}
status = ads_schema_path(ads, ctx, &schema_path);
if (!ADS_ERR_OK(status)) {
DEBUG(3,("ads_check_posix_mapping: Unable to retrieve schema DN!\n"));
goto done;
}
if (map_type == WB_POSIX_MAP_SFU) {
status = ads_get_attrnames_by_oids(ads, ctx, schema_path, oids_sfu,
ARRAY_SIZE(oids_sfu),
&oids_out, &names_out, &num_names);
} else {
status = ads_get_attrnames_by_oids(ads, ctx, schema_path, oids_rfc2307,
ARRAY_SIZE(oids_rfc2307),
&oids_out, &names_out, &num_names);
}
if (!ADS_ERR_OK(status)) {
DEBUG(3,("ads_check_posix_schema_mapping: failed %s\n",
ads_errstr(status)));
goto done;
}
DEBUG(10,("ads_check_posix_schema_mapping: query succeeded, identified: %s\n",
wb_posix_map_str(map_type)));
for (i=0; i<num_names; i++) {
DEBUGADD(10,("\tOID %s has name: %s\n", oids_out[i], names_out[i]));
if (strequal(ADS_ATTR_RFC2307_UIDNUMBER_OID, oids_out[i]) ||
strequal(ADS_ATTR_SFU_UIDNUMBER_OID, oids_out[i])) {
ads->schema.posix_uidnumber_attr = SMB_STRDUP(names_out[i]);
}
if (strequal(ADS_ATTR_RFC2307_GIDNUMBER_OID, oids_out[i]) ||
strequal(ADS_ATTR_SFU_GIDNUMBER_OID, oids_out[i])) {
ads->schema.posix_gidnumber_attr = SMB_STRDUP(names_out[i]);
}
if (strequal(ADS_ATTR_RFC2307_HOMEDIR_OID, oids_out[i]) ||
strequal(ADS_ATTR_SFU_HOMEDIR_OID, oids_out[i])) {
ads->schema.posix_homedir_attr = SMB_STRDUP(names_out[i]);
}
if (strequal(ADS_ATTR_RFC2307_SHELL_OID, oids_out[i]) ||
strequal(ADS_ATTR_SFU_SHELL_OID, oids_out[i])) {
ads->schema.posix_shell_attr = SMB_STRDUP(names_out[i]);
}
if (strequal(ADS_ATTR_RFC2307_GECOS_OID, oids_out[i]) ||
strequal(ADS_ATTR_SFU_GECOS_OID, oids_out[i])) {
ads->schema.posix_gecos_attr = SMB_STRDUP(names_out[i]);
}
}
talloc_destroy(ctx);
ADS_ERROR_HAVE_NO_MEMORY(ads->schema.posix_uidnumber_attr);
ADS_ERROR_HAVE_NO_MEMORY(ads->schema.posix_gidnumber_attr);
ADS_ERROR_HAVE_NO_MEMORY(ads->schema.posix_homedir_attr);
ADS_ERROR_HAVE_NO_MEMORY(ads->schema.posix_shell_attr);
ADS_ERROR_HAVE_NO_MEMORY(ads->schema.posix_gecos_attr);
status = ADS_ERROR(LDAP_SUCCESS);
ads->schema.map_type = map_type;
done:
/* free any temporary ads connections */
if (ads_s != ads) {
ads_destroy(&ads_s);
}
if (ctx) {
talloc_destroy(ctx);
}
return status;
}
#endif