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/*
Unix SMB/Netbios implementation.
Version 3.0
client error handling routines
Copyright (C) Andrew Tridgell 1994-1998
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.
*/
#define NO_SYSLOG
#include "includes.h"
extern int DEBUGLEVEL;
/*****************************************************
RAP error codes - a small start but will be extended.
*******************************************************/
static struct
{
int err;
char *message;
} rap_errmap[] =
{
{5, "User has insufficient privilege" },
{86, "The specified password is invalid" },
{2226, "Operation only permitted on a Primary Domain Controller" },
{2242, "The password of this user has expired." },
{2243, "The password of this user cannot change." },
{2244, "This password cannot be used now (password history conflict)." },
{2245, "The password is shorter than required." },
{2246, "The password of this user is too recent to change."},
/* these really shouldn't be here ... */
{0x80, "Not listening on called name"},
{0x81, "Not listening for calling name"},
{0x82, "Called name not present"},
{0x83, "Called name present, but insufficient resources"},
{0, NULL}
};
/****************************************************************************
return a description of an SMB error
****************************************************************************/
static char *cli_smb_errstr(struct cli_state *cli)
{
return smb_dos_errstr(cli->inbuf);
}
/***************************************************************************
Return an error message - either an NT error, SMB error or a RAP error.
Note some of the NT errors are actually warnings or "informational" errors
in which case they can be safely ignored.
****************************************************************************/
char *cli_errstr(struct cli_state *cli)
{
static fstring error_message;
uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), errnum;
uint8 errclass;
int i;
/* Case #1: 32-bit NT errors */
if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
NTSTATUS status = NT_STATUS(IVAL(cli->inbuf,smb_rcls));
return get_nt_error_msg(status);
}
cli_dos_error(cli, &errclass, &errnum);
/* Case #2: SMB error */
if (errclass != 0)
return cli_smb_errstr(cli);
/* Case #3: RAP error */
for (i = 0; rap_errmap[i].message != NULL; i++) {
if (rap_errmap[i].err == cli->rap_error) {
return rap_errmap[i].message;
}
}
slprintf(error_message, sizeof(error_message) - 1, "code %d",
cli->rap_error);
return error_message;
}
/* Return the 32-bit NT status code from the last packet */
NTSTATUS cli_nt_error(struct cli_state *cli)
{
int flgs2 = SVAL(cli->inbuf,smb_flg2);
if (!(flgs2 & FLAGS2_32_BIT_ERROR_CODES)) {
int class = CVAL(cli->inbuf,smb_rcls);
int code = SVAL(cli->inbuf,smb_err);
return dos_to_ntstatus(class, code);
}
return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
}
/* Return the DOS error from the last packet - an error class and an error
code. */
void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
{
int flgs2;
char rcls;
int code;
if(!cli->initialised) return;
flgs2 = SVAL(cli->inbuf,smb_flg2);
if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
NTSTATUS ntstatus = NT_STATUS(IVAL(cli->inbuf, smb_rcls));
ntstatus_to_dos(ntstatus, eclass, ecode);
return;
}
rcls = CVAL(cli->inbuf,smb_rcls);
code = SVAL(cli->inbuf,smb_err);
if (eclass) *eclass = rcls;
if (ecode) *ecode = code;
}
/* Return a UNIX errno from a dos error class, error number tuple */
int cli_errno_from_dos(uint8 eclass, uint32 num)
{
if (eclass == ERRDOS) {
switch (num) {
case ERRbadfile: return ENOENT;
case ERRbadpath: return ENOTDIR;
case ERRnoaccess: return EACCES;
case ERRfilexists: return EEXIST;
case ERRrename: return EEXIST;
case ERRbadshare: return EBUSY;
case ERRlock: return EBUSY;
case ERRinvalidname: return ENOENT;
case ERRnosuchshare: return ENODEV;
}
}
if (eclass == ERRSRV) {
switch (num) {
case ERRbadpw: return EPERM;
case ERRaccess: return EACCES;
case ERRnoresource: return ENOMEM;
case ERRinvdevice: return ENODEV;
case ERRinvnetname: return ENODEV;
}
}
/* for other cases */
return EINVAL;
}
/* Return a UNIX errno from a NT status code */
static struct {
NTSTATUS status;
int error;
} nt_errno_map[] = {
{NT_STATUS_ACCESS_VIOLATION, EACCES},
{NT_STATUS_NO_SUCH_FILE, ENOENT},
{NT_STATUS_NO_SUCH_DEVICE, ENODEV},
{NT_STATUS_INVALID_HANDLE, EBADF},
{NT_STATUS_NO_MEMORY, ENOMEM},
{NT_STATUS_ACCESS_DENIED, EACCES},
{NT_STATUS_OBJECT_NAME_NOT_FOUND, ENOENT},
{NT_STATUS_SHARING_VIOLATION, EBUSY},
{NT_STATUS_OBJECT_PATH_INVALID, ENOTDIR},
{NT_STATUS_OBJECT_NAME_COLLISION, EEXIST},
{NT_STATUS_PATH_NOT_COVERED, ENOENT},
{NT_STATUS(0), 0}
};
int cli_errno_from_nt(NTSTATUS status)
{
int i;
DEBUG(10,("cli_errno_from_nt: 32 bit codes: code=%08x\n", NT_STATUS_V(status)));
/* Status codes without this bit set are not errors */
if (!(NT_STATUS_V(status) & 0xc0000000))
return 0;
for (i=0;nt_errno_map[i].error;i++) {
if (NT_STATUS_V(nt_errno_map[i].status) ==
NT_STATUS_V(status)) return nt_errno_map[i].error;
}
/* for all other cases - a default code */
return EINVAL;
}
/* Return a UNIX errno appropriate for the error received in the last
packet. */
int cli_errno(struct cli_state *cli)
{
NTSTATUS status;
if (cli_is_dos_error(cli)) {
uint8 eclass;
uint32 ecode;
cli_dos_error(cli, &eclass, &ecode);
return cli_errno_from_dos(eclass, ecode);
}
status = cli_nt_error(cli);
return cli_errno_from_nt(status);
}
/* Return true if the last packet was in error */
BOOL cli_is_error(struct cli_state *cli)
{
uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), rcls = 0;
if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
/* Return error is error bits are set */
rcls = IVAL(cli->inbuf, smb_rcls);
return (rcls & 0xF0000000) == 0xC0000000;
}
/* Return error if error class in non-zero */
rcls = CVAL(cli->inbuf, smb_rcls);
return rcls != 0;
}
/* Return true if the last error was an NT error */
BOOL cli_is_nt_error(struct cli_state *cli)
{
uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
return cli_is_error(cli) && (flgs2 & FLAGS2_32_BIT_ERROR_CODES);
}
/* Return true if the last error was a DOS error */
BOOL cli_is_dos_error(struct cli_state *cli)
{
uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
}
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