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/*
Unix SMB/CIFS implementation.
dcerpc utility functions
Copyright (C) Andrew Tridgell 2003
Copyright (C) Jelmer Vernooij 2004
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "../lib/util/dlinklist.h"
#include "librpc/ndr/libndr.h"
#include "librpc/ndr/ndr_table.h"
#undef strcasecmp
static struct ndr_interface_list *ndr_interfaces;
/*
register a ndr interface table
*/
NTSTATUS ndr_table_register(const struct ndr_interface_table *table)
{
struct ndr_interface_list *l;
for (l = ndr_interfaces; l; l = l->next) {
/*
* If no GUID is supplied, use the name to determine
* uniquness.
*/
if (GUID_all_zero(&table->syntax_id.uuid)) {
if (strcmp(table->name,
l->table->name) != 0) {
continue;
}
DBG_ERR("Attempt to register interface %s which has the "
"same name as already registered interface\n",
table->name);
} else {
if (!GUID_equal(&table->syntax_id.uuid,
&l->table->syntax_id.uuid)) {
continue;
}
DBG_ERR("Attempt to register interface %s which has the "
"same UUID as already registered interface %s\n",
table->name, l->table->name);
}
return NT_STATUS_OBJECT_NAME_COLLISION;
}
/*
* This is a singleton instance guarenteed
* by the above check to be only added once
* into the list so we can allocate off the NULL
* context. We never want this to be freed
* until process shutdown. If needed we could
* add a deregister function that walks and
* frees the list.
*/
l = talloc(NULL, struct ndr_interface_list);
l->table = table;
DLIST_ADD(ndr_interfaces, l);
return NT_STATUS_OK;
}
/*
find the pipe name for a local IDL interface
*/
const char *ndr_interface_name(const struct GUID *uuid, uint32_t if_version)
{
const struct ndr_interface_list *l;
for (l=ndr_table_list();l;l=l->next) {
if (GUID_equal(&l->table->syntax_id.uuid, uuid) &&
l->table->syntax_id.if_version == if_version) {
return l->table->name;
}
}
return "UNKNOWN";
}
/*
find the number of calls defined by local IDL
*/
int ndr_interface_num_calls(const struct GUID *uuid, uint32_t if_version)
{
const struct ndr_interface_list *l;
for (l=ndr_table_list();l;l=l->next){
if (GUID_equal(&l->table->syntax_id.uuid, uuid) &&
l->table->syntax_id.if_version == if_version) {
return l->table->num_calls;
}
}
return -1;
}
/*
find a dcerpc interface by name
*/
const struct ndr_interface_table *ndr_table_by_name(const char *name)
{
const struct ndr_interface_list *l;
for (l=ndr_table_list();l;l=l->next) {
if (strcasecmp(l->table->name, name) == 0) {
return l->table;
}
}
return NULL;
}
/*
find a dcerpc interface by syntax
*/
const struct ndr_interface_table *ndr_table_by_syntax(const struct ndr_syntax_id *syntax)
{
const struct ndr_interface_list *l;
if (GUID_all_zero(&syntax->uuid)) {
/* These are not unique */
return NULL;
}
for (l=ndr_table_list();l;l=l->next) {
if (ndr_syntax_id_equal(&l->table->syntax_id, syntax)) {
return l->table;
}
}
return NULL;
}
/*
find a dcerpc interface by uuid
*/
const struct ndr_interface_table *ndr_table_by_uuid(const struct GUID *uuid)
{
const struct ndr_interface_list *l;
if (GUID_all_zero(uuid)) {
/* These are not unique */
return NULL;
}
for (l=ndr_table_list();l;l=l->next) {
if (GUID_equal(&l->table->syntax_id.uuid, uuid)) {
return l->table;
}
}
return NULL;
}
/*
return the list of registered dcerpc_pipes
*/
const struct ndr_interface_list *ndr_table_list(void)
{
ndr_table_init();
return ndr_interfaces;
}
NTSTATUS ndr_table_init(void)
{
static bool initialized = false;
if (initialized) return NT_STATUS_OK;
initialized = true;
ndr_table_register_builtin_tables();
return NT_STATUS_OK;
}
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