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 errno.
29 ****************************************************************************/
31 int unix_error_packet(char *outbuf,int def_class,uint32 def_code, NTSTATUS def_status, int line, const char *file)
35 NTSTATUS ntstatus = def_status;
39 DEBUG(3,("unix_error_packet: error string = %s\n",strerror(errno)));
41 while (unix_dos_nt_errmap[i].dos_class != 0) {
42 if (unix_dos_nt_errmap[i].unix_error == errno) {
43 eclass = unix_dos_nt_errmap[i].dos_class;
44 ecode = unix_dos_nt_errmap[i].dos_code;
45 ntstatus = unix_dos_nt_errmap[i].nt_error;
52 return error_packet(outbuf,eclass,ecode,ntstatus,line,file);
55 bool use_nt_status(void)
57 return lp_nt_status_support() && (global_client_caps & CAP_STATUS32);
60 /****************************************************************************
61 Create an error packet. Normally called using the ERROR() macro.
62 Setting eclass and ecode only and status to NT_STATUS_OK forces DOS errors.
63 Setting status only and eclass and ecode to zero forces NT errors.
64 If the override errors are set they take precedence over any passed in values.
65 ****************************************************************************/
67 void error_packet_set(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
69 bool force_nt_status = False;
70 bool force_dos_status = False;
72 if (eclass == (uint8)-1) {
73 force_nt_status = True;
74 } else if (NT_STATUS_IS_DOS(ntstatus)) {
75 force_dos_status = True;
78 if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
79 /* We're returning an NT error. */
80 if (NT_STATUS_V(ntstatus) == 0 && eclass) {
81 ntstatus = dos_to_ntstatus(eclass, ecode);
83 SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
84 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
85 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
87 (int)CVAL(outbuf,smb_com),
88 smb_fn_name(CVAL(outbuf,smb_com)),
89 nt_errstr(ntstatus)));
91 /* We're returning a DOS error only. */
92 if (NT_STATUS_IS_DOS(ntstatus)) {
93 eclass = NT_STATUS_DOS_CLASS(ntstatus);
94 ecode = NT_STATUS_DOS_CODE(ntstatus);
95 } else if (eclass == 0 && NT_STATUS_V(ntstatus)) {
96 ntstatus_to_dos(ntstatus, &eclass, &ecode);
99 SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
100 SSVAL(outbuf,smb_rcls,eclass);
101 SSVAL(outbuf,smb_err,ecode);
103 DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
105 (int)CVAL(outbuf,smb_com),
106 smb_fn_name(CVAL(outbuf,smb_com)),
112 int error_packet(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
114 int outsize = set_message(outbuf,0,0,True);
115 error_packet_set(outbuf, eclass, ecode, ntstatus, line, file);
119 void reply_nt_error(struct smb_request *req, NTSTATUS ntstatus,
120 int line, const char *file)
122 TALLOC_FREE(req->outbuf);
123 reply_outbuf(req, 0, 0);
124 error_packet_set((char *)req->outbuf, 0, 0, ntstatus, line, file);
127 void reply_force_nt_error(struct smb_request *req, NTSTATUS ntstatus,
128 int line, const char *file)
130 TALLOC_FREE(req->outbuf);
131 reply_outbuf(req, 0, 0);
132 error_packet_set((char *)req->outbuf, -1, -1, ntstatus, line, file);
135 void reply_dos_error(struct smb_request *req, uint8 eclass, uint32 ecode,
136 int line, const char *file)
138 TALLOC_FREE(req->outbuf);
139 reply_outbuf(req, 0, 0);
140 error_packet_set((char *)req->outbuf, eclass, ecode, NT_STATUS_OK, line,
144 void reply_both_error(struct smb_request *req, uint8 eclass, uint32 ecode,
145 NTSTATUS status, int line, const char *file)
147 TALLOC_FREE(req->outbuf);
148 reply_outbuf(req, 0, 0);
149 error_packet_set((char *)req->outbuf, eclass, ecode, status,
153 void reply_unix_error(struct smb_request *req, uint8 defclass, uint32 defcode,
154 NTSTATUS defstatus, int line, const char *file)
158 NTSTATUS ntstatus = defstatus;
161 TALLOC_FREE(req->outbuf);
162 reply_outbuf(req, 0, 0);
165 DEBUG(3,("unix_error_packet: error string = %s\n",
168 while (unix_dos_nt_errmap[i].dos_class != 0) {
169 if (unix_dos_nt_errmap[i].unix_error == errno) {
170 eclass = unix_dos_nt_errmap[i].dos_class;
171 ecode = unix_dos_nt_errmap[i].dos_code;
172 ntstatus = unix_dos_nt_errmap[i].nt_error;
179 error_packet_set((char *)req->outbuf, eclass, ecode, ntstatus,
183 void reply_openerror(struct smb_request *req, NTSTATUS status)
185 if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
187 * We hit an existing file, and if we're returning DOS
188 * error codes OBJECT_NAME_COLLISION would map to
189 * ERRDOS/183, we need to return ERRDOS/80, see bug
192 reply_botherror(req, NT_STATUS_OBJECT_NAME_COLLISION,
193 ERRDOS, ERRfilexists);
195 reply_nterror(req, status);