2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1992-1998
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 /* From lib/error.c */
24 extern struct unix_error_map unix_dos_nt_errmap[];
26 extern uint32 global_client_caps;
28 /****************************************************************************
29 Create an error packet from a cached error.
30 ****************************************************************************/
32 int cached_error_packet(char *outbuf,files_struct *fsp,int line,const char *file)
34 write_bmpx_struct *wbmpx = fsp->wbmpx_ptr;
35 int32 eclass = wbmpx->wr_errclass;
36 int32 err = wbmpx->wr_error;
37 NTSTATUS ntstatus = wbmpx->wr_status;
39 /* We can now delete the auxiliary struct */
40 SAFE_FREE(fsp->wbmpx_ptr);
41 return error_packet(outbuf,eclass,err,ntstatus,line,file);
44 /****************************************************************************
45 Create an error packet from errno.
46 ****************************************************************************/
48 int unix_error_packet(char *outbuf,int def_class,uint32 def_code, NTSTATUS def_status, int line, const char *file)
52 NTSTATUS ntstatus = def_status;
56 DEBUG(3,("unix_error_packet: error string = %s\n",strerror(errno)));
58 while (unix_dos_nt_errmap[i].dos_class != 0) {
59 if (unix_dos_nt_errmap[i].unix_error == errno) {
60 eclass = unix_dos_nt_errmap[i].dos_class;
61 ecode = unix_dos_nt_errmap[i].dos_code;
62 ntstatus = unix_dos_nt_errmap[i].nt_error;
69 return error_packet(outbuf,eclass,ecode,ntstatus,line,file);
72 BOOL use_nt_status(void)
74 return lp_nt_status_support() && (global_client_caps & CAP_STATUS32);
77 /****************************************************************************
78 Create an error packet. Normally called using the ERROR() macro.
79 Setting eclass and ecode only and status to NT_STATUS_OK forces DOS errors.
80 Setting status only and eclass and ecode to zero forces NT errors.
81 If the override errors are set they take precedence over any passed in values.
82 ****************************************************************************/
84 int error_packet(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
86 int outsize = set_message(outbuf,0,0,True);
87 BOOL force_nt_status = False;
88 BOOL force_dos_status = False;
90 if (eclass == (uint8)-1) {
91 force_nt_status = True;
92 } else if (NT_STATUS_IS_DOS(ntstatus)) {
93 force_dos_status = True;
96 if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
97 /* We're returning an NT error. */
98 if (NT_STATUS_V(ntstatus) == 0 && eclass) {
99 ntstatus = dos_to_ntstatus(eclass, ecode);
101 SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
102 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
103 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
105 (int)CVAL(outbuf,smb_com),
106 smb_fn_name(CVAL(outbuf,smb_com)),
107 nt_errstr(ntstatus)));
109 /* We're returning a DOS error only. */
110 if (NT_STATUS_IS_DOS(ntstatus)) {
111 eclass = NT_STATUS_DOS_CLASS(ntstatus);
112 ecode = NT_STATUS_DOS_CODE(ntstatus);
113 } else if (eclass == 0 && NT_STATUS_V(ntstatus)) {
114 ntstatus_to_dos(ntstatus, &eclass, &ecode);
117 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
118 SSVAL(outbuf,smb_rcls,eclass);
119 SSVAL(outbuf,smb_err,ecode);
121 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
123 (int)CVAL(outbuf,smb_com),
124 smb_fn_name(CVAL(outbuf,smb_com)),