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 3 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, see <http://www.gnu.org/licenses/>.
22 /* From lib/error.c */
23 extern struct unix_error_map unix_dos_nt_errmap[];
25 extern uint32 global_client_caps;
27 /****************************************************************************
28 Create an error packet from a cached error.
29 ****************************************************************************/
31 int cached_error_packet(const char *inbuf,char *outbuf,files_struct *fsp,int line,const char *file)
33 write_bmpx_struct *wbmpx = fsp->wbmpx_ptr;
34 int32 eclass = wbmpx->wr_errclass;
35 int32 err = wbmpx->wr_error;
36 NTSTATUS ntstatus = wbmpx->wr_status;
38 /* We can now delete the auxiliary struct */
39 SAFE_FREE(fsp->wbmpx_ptr);
40 return error_packet(inbuf,outbuf,eclass,err,ntstatus,line,file);
43 /****************************************************************************
44 Create an error packet from errno.
45 ****************************************************************************/
47 int unix_error_packet(const char *inbuf,char *outbuf,int def_class,uint32 def_code, NTSTATUS def_status, int line, const char *file)
51 NTSTATUS ntstatus = def_status;
55 DEBUG(3,("unix_error_packet: error string = %s\n",strerror(errno)));
57 while (unix_dos_nt_errmap[i].dos_class != 0) {
58 if (unix_dos_nt_errmap[i].unix_error == errno) {
59 eclass = unix_dos_nt_errmap[i].dos_class;
60 ecode = unix_dos_nt_errmap[i].dos_code;
61 ntstatus = unix_dos_nt_errmap[i].nt_error;
68 return error_packet(inbuf,outbuf,eclass,ecode,ntstatus,line,file);
71 BOOL use_nt_status(void)
73 return lp_nt_status_support() && (global_client_caps & CAP_STATUS32);
76 /****************************************************************************
77 Create an error packet. Normally called using the ERROR() macro.
78 Setting eclass and ecode only and status to NT_STATUS_OK forces DOS errors.
79 Setting status only and eclass and ecode to zero forces NT errors.
80 If the override errors are set they take precedence over any passed in values.
81 ****************************************************************************/
83 void error_packet_set(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
85 BOOL force_nt_status = False;
86 BOOL force_dos_status = False;
88 if (eclass == (uint8)-1) {
89 force_nt_status = True;
90 } else if (NT_STATUS_IS_DOS(ntstatus)) {
91 force_dos_status = True;
94 if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
95 /* We're returning an NT error. */
96 if (NT_STATUS_V(ntstatus) == 0 && eclass) {
97 ntstatus = dos_to_ntstatus(eclass, ecode);
99 SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
100 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
101 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
103 (int)CVAL(outbuf,smb_com),
104 smb_fn_name(CVAL(outbuf,smb_com)),
105 nt_errstr(ntstatus)));
107 /* We're returning a DOS error only. */
108 if (NT_STATUS_IS_DOS(ntstatus)) {
109 eclass = NT_STATUS_DOS_CLASS(ntstatus);
110 ecode = NT_STATUS_DOS_CODE(ntstatus);
111 } else if (eclass == 0 && NT_STATUS_V(ntstatus)) {
112 ntstatus_to_dos(ntstatus, &eclass, &ecode);
115 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
116 SSVAL(outbuf,smb_rcls,eclass);
117 SSVAL(outbuf,smb_err,ecode);
119 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
121 (int)CVAL(outbuf,smb_com),
122 smb_fn_name(CVAL(outbuf,smb_com)),
128 int error_packet(const char *inbuf, char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
130 int outsize = set_message(inbuf,outbuf,0,0,True);
131 error_packet_set(outbuf, eclass, ecode, ntstatus, line, file);
135 void reply_nt_error(struct smb_request *req, NTSTATUS ntstatus,
136 int line, const char *file)
138 TALLOC_FREE(req->outbuf);
139 reply_outbuf(req, 0, 0);
140 error_packet_set((char *)req->outbuf, 0, 0, ntstatus, line, file);
143 void reply_dos_error(struct smb_request *req, uint8 eclass, uint32 ecode,
144 int line, const char *file)
146 TALLOC_FREE(req->outbuf);
147 reply_outbuf(req, 0, 0);
148 error_packet_set((char *)req->outbuf, eclass, ecode, NT_STATUS_OK, line,
152 void reply_both_error(struct smb_request *req, uint8 eclass, uint32 ecode,
153 NTSTATUS status, int line, const char *file)
155 TALLOC_FREE(req->outbuf);
156 reply_outbuf(req, 0, 0);
157 error_packet_set((char *)req->outbuf, eclass, ecode, status,