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/*
* Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
*
* Copyright (c) Andreas Schneider 2010.
*
* 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 "system/filesys.h"
#include "printing/nt_printing_migrate.h"
#include "printing/nt_printing_migrate_internal.h"
#include "rpc_client/rpc_client.h"
#include "librpc/gen_ndr/ndr_spoolss_c.h"
#include "librpc/gen_ndr/ndr_winreg.h"
#include "rpc_server/rpc_ncacn_np.h"
#include "auth.h"
#include "util_tdb.h"
#define FORMS_PREFIX "FORMS/"
#define DRIVERS_PREFIX "DRIVERS/"
#define PRINTERS_PREFIX "PRINTERS/"
#define SECDESC_PREFIX "SECDESC/"
static int rename_file_with_suffix(TALLOC_CTX *mem_ctx,
const char *path,
const char *suffix)
{
int rc = -1;
char *dst_path;
dst_path = talloc_asprintf(mem_ctx, "%s%s", path, suffix);
if (dst_path == NULL) {
DEBUG(3, ("error out of memory\n"));
return rc;
}
rc = (rename(path, dst_path) != 0);
if (rc == 0) {
DEBUG(5, ("moved '%s' to '%s'\n", path, dst_path));
} else if (errno == ENOENT) {
DEBUG(3, ("file '%s' does not exist - so not moved\n", path));
rc = 0;
} else {
DEBUG(3, ("error renaming %s to %s: %s\n", path, dst_path,
strerror(errno)));
}
TALLOC_FREE(dst_path);
return rc;
}
static NTSTATUS migrate_internal(TALLOC_CTX *mem_ctx,
const char *tdb_path,
struct rpc_pipe_client *winreg_pipe)
{
const char *backup_suffix = ".bak";
TDB_DATA kbuf, dbuf;
TDB_CONTEXT *tdb;
NTSTATUS status;
int rc;
tdb = tdb_open_log(tdb_path, 0, TDB_DEFAULT, O_RDONLY, 0600);
if (tdb == NULL && errno == ENOENT) {
/* if we have no printers database then migration is
considered successful */
DEBUG(4, ("No printers database to migrate in %s\n", tdb_path));
return NT_STATUS_OK;
}
if (tdb == NULL) {
DEBUG(2, ("Failed to open tdb file: %s\n", tdb_path));
return NT_STATUS_NO_SUCH_FILE;
}
for (kbuf = tdb_firstkey_compat(tdb);
kbuf.dptr;
kbuf = tdb_nextkey_compat(tdb, kbuf))
{
dbuf = tdb_fetch_compat(tdb, kbuf);
if (!dbuf.dptr) {
continue;
}
if (strncmp((const char *) kbuf.dptr, FORMS_PREFIX, strlen(FORMS_PREFIX)) == 0) {
status = printing_tdb_migrate_form(mem_ctx,
winreg_pipe,
(const char *) kbuf.dptr + strlen(FORMS_PREFIX),
dbuf.dptr,
dbuf.dsize);
SAFE_FREE(dbuf.dptr);
if (!NT_STATUS_IS_OK(status)) {
tdb_close(tdb);
return status;
}
continue;
}
if (strncmp((const char *) kbuf.dptr, DRIVERS_PREFIX, strlen(DRIVERS_PREFIX)) == 0) {
status = printing_tdb_migrate_driver(mem_ctx,
winreg_pipe,
(const char *) kbuf.dptr + strlen(DRIVERS_PREFIX),
dbuf.dptr,
dbuf.dsize,
false);
SAFE_FREE(dbuf.dptr);
if (!NT_STATUS_IS_OK(status)) {
tdb_close(tdb);
return status;
}
continue;
}
if (strncmp((const char *) kbuf.dptr, PRINTERS_PREFIX, strlen(PRINTERS_PREFIX)) == 0) {
const char *printer_name = (const char *)(kbuf.dptr
+ strlen(PRINTERS_PREFIX));
status = printing_tdb_migrate_printer(mem_ctx,
winreg_pipe,
printer_name,
dbuf.dptr,
dbuf.dsize,
false);
SAFE_FREE(dbuf.dptr);
if (!NT_STATUS_IS_OK(status)) {
tdb_close(tdb);
return status;
}
continue;
}
SAFE_FREE(dbuf.dptr);
}
for (kbuf = tdb_firstkey_compat(tdb);
kbuf.dptr;
kbuf = tdb_nextkey_compat(tdb, kbuf))
{
dbuf = tdb_fetch_compat(tdb, kbuf);
if (!dbuf.dptr) {
continue;
}
if (strncmp((const char *) kbuf.dptr, SECDESC_PREFIX, strlen(SECDESC_PREFIX)) == 0) {
const char *secdesc_name = (const char *)(kbuf.dptr
+ strlen(SECDESC_PREFIX));
status = printing_tdb_migrate_secdesc(mem_ctx,
winreg_pipe,
secdesc_name,
dbuf.dptr,
dbuf.dsize);
SAFE_FREE(dbuf.dptr);
if (NT_STATUS_EQUAL(status, werror_to_ntstatus(WERR_BADFILE))) {
DEBUG(2, ("Skipping secdesc migration for non-existent "
"printer: %s\n", secdesc_name));
} else if (!NT_STATUS_IS_OK(status)) {
tdb_close(tdb);
return status;
}
continue;
}
SAFE_FREE(dbuf.dptr);
}
tdb_close(tdb);
rc = rename_file_with_suffix(mem_ctx, tdb_path, backup_suffix);
if (rc != 0) {
DEBUG(0, ("Error moving tdb to '%s%s'\n",
tdb_path, backup_suffix));
}
return NT_STATUS_OK;
}
bool nt_printing_tdb_migrate(struct messaging_context *msg_ctx)
{
const char *drivers_path = state_path("ntdrivers.tdb");
const char *printers_path = state_path("ntprinters.tdb");
const char *forms_path = state_path("ntforms.tdb");
bool drivers_exists = file_exist(drivers_path);
bool printers_exists = file_exist(printers_path);
bool forms_exists = file_exist(forms_path);
struct auth_session_info *session_info;
struct rpc_pipe_client *winreg_pipe = NULL;
TALLOC_CTX *tmp_ctx = talloc_stackframe();
NTSTATUS status;
if (!drivers_exists && !printers_exists && !forms_exists) {
talloc_free(tmp_ctx);
return true;
}
status = make_session_info_system(tmp_ctx, &session_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Couldn't create session_info: %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return false;
}
status = rpc_pipe_open_interface(tmp_ctx,
&ndr_table_winreg.syntax_id,
session_info,
NULL,
msg_ctx,
&winreg_pipe);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Couldn't open internal winreg pipe: %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return false;
}
if (drivers_exists) {
status = migrate_internal(tmp_ctx, drivers_path, winreg_pipe);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Couldn't migrate drivers tdb file: %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return false;
}
}
if (printers_exists) {
status = migrate_internal(tmp_ctx, printers_path, winreg_pipe);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Couldn't migrate printers tdb file: %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return false;
}
}
if (forms_exists) {
status = migrate_internal(tmp_ctx, forms_path, winreg_pipe);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Couldn't migrate forms tdb file: %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return false;
}
}
talloc_free(tmp_ctx);
return true;
}
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