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/*
Unix SMB/CIFS implementation.
client error handling routines
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Jelmer Vernooij 2003
Copyright (C) Jeremy Allison 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 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 "libsmb/libsmb.h"
#include "../libcli/smb/smbXcli_base.h"
/****************************************************************************
Return the 32-bit NT status code from the last packet.
****************************************************************************/
NTSTATUS cli_nt_error(struct cli_state *cli)
{
/* Deal with socket errors first. */
if (!cli_state_is_connected(cli)) {
return NT_STATUS_CONNECTION_DISCONNECTED;
}
if (NT_STATUS_IS_DOS(cli->raw_status)) {
int e_class = NT_STATUS_DOS_CLASS(cli->raw_status);
int code = NT_STATUS_DOS_CODE(cli->raw_status);
return dos_to_ntstatus(e_class, code);
}
return cli->raw_status;
}
/****************************************************************************
Return the DOS error from the last packet - an error class and an error
code.
****************************************************************************/
void cli_dos_error(struct cli_state *cli, uint8_t *eclass, uint32_t *ecode)
{
if (!cli_state_is_connected(cli)) {
*eclass = ERRDOS;
*ecode = ERRnotconnected;
return;
}
if (!NT_STATUS_IS_DOS(cli->raw_status)) {
ntstatus_to_dos(cli->raw_status, eclass, ecode);
return;
}
*eclass = NT_STATUS_DOS_CLASS(cli->raw_status);
*ecode = NT_STATUS_DOS_CODE(cli->raw_status);
}
int cli_status_to_errno(NTSTATUS status)
{
int err;
if (NT_STATUS_IS_DOS(status)) {
uint8_t eclass = NT_STATUS_DOS_CLASS(status);
uint32_t ecode = NT_STATUS_DOS_CODE(status);
status = dos_to_ntstatus(eclass, ecode);
}
if (NT_STATUS_EQUAL(status, NT_STATUS_STOPPED_ON_SYMLINK)) {
/*
* Legacy code from cli_errno, see Samba up to 4.13: A
* special case for this Vista error. Since its
* high-order byte isn't 0xc0, it won't match
* correctly in map_errno_from_nt_status().
*/
err = EACCES;
} else {
err = map_errno_from_nt_status(status);
}
DBG_NOTICE("0x%"PRIx32" -> %d\n", NT_STATUS_V(status), err);
return err;
}
/* Return a UNIX errno appropriate for the error received in the last
packet. */
int cli_errno(struct cli_state *cli)
{
bool connected;
int err;
connected = cli_state_is_connected(cli);
if (!connected) {
return EPIPE;
}
err = cli_status_to_errno(cli->raw_status);
return err;
}
/* Return true if the last packet was in error */
bool cli_is_error(struct cli_state *cli)
{
/* A socket error is always an error. */
if (!cli_state_is_connected(cli)) {
return true;
}
if (NT_STATUS_IS_DOS(cli->raw_status)) {
/* Return error if error class in non-zero */
uint8_t rcls = NT_STATUS_DOS_CLASS(cli->raw_status);
return rcls != 0;
}
return NT_STATUS_IS_ERR(cli->raw_status);
}
/* Return true if the last error was an NT error */
bool cli_is_nt_error(struct cli_state *cli)
{
/* A socket error is always an NT error. */
if (!cli_state_is_connected(cli)) {
return true;
}
return cli_is_error(cli) && !NT_STATUS_IS_DOS(cli->raw_status);
}
/* Return true if the last error was a DOS error */
bool cli_is_dos_error(struct cli_state *cli)
{
/* A socket error is always a DOS error. */
if (!cli_state_is_connected(cli)) {
return true;
}
return cli_is_error(cli) && NT_STATUS_IS_DOS(cli->raw_status);
}
bool cli_state_is_connected(struct cli_state *cli)
{
if (cli == NULL) {
return false;
}
if (!cli->initialised) {
return false;
}
return smbXcli_conn_is_connected(cli->conn);
}
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