/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
error packet handling
Copyright (C) Andrew Tridgell 1992-1998
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
+ 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,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-extern int DEBUGLEVEL;
+/* From lib/error.c */
+extern struct unix_error_map unix_dos_nt_errmap[];
-/* these can be set by some functions to override the error codes */
-int unix_ERR_class=SMB_SUCCESS;
-int unix_ERR_code=0;
+extern uint32 global_client_caps;
-
-struct
-{
- int unixerror;
- int smbclass;
- int smbcode;
-} unix_smb_errmap[] =
+bool use_nt_status(void)
{
- {EPERM,ERRDOS,ERRnoaccess},
- {EACCES,ERRDOS,ERRnoaccess},
- {ENOENT,ERRDOS,ERRbadfile},
- {ENOTDIR,ERRDOS,ERRbadpath},
- {EIO,ERRHRD,ERRgeneral},
- {EBADF,ERRSRV,ERRsrverror},
- {EINVAL,ERRSRV,ERRsrverror},
- {EEXIST,ERRDOS,ERRfilexists},
- {ENFILE,ERRDOS,ERRnofids},
- {EMFILE,ERRDOS,ERRnofids},
- {ENOSPC,ERRHRD,ERRdiskfull},
-#ifdef EDQUOT
- {EDQUOT,ERRHRD,ERRdiskfull},
-#endif
-#ifdef ENOTEMPTY
- {ENOTEMPTY,ERRDOS,ERRnoaccess},
-#endif
-#ifdef EXDEV
- {EXDEV,ERRDOS,ERRdiffdevice},
-#endif
- {EROFS,ERRHRD,ERRnowrite},
- {0,0,0}
-};
+ return lp_nt_status_support() && (global_client_caps & CAP_STATUS32);
+}
/****************************************************************************
- create an error packet from errno
+ Create an error packet. Normally called using the ERROR() macro.
+ Setting eclass and ecode only and status to NT_STATUS_OK forces DOS errors.
+ Setting status only and eclass and ecode to zero forces NT errors.
+ If the override errors are set they take precedence over any passed in values.
****************************************************************************/
-int unix_error_packet(char *outbuf,int def_class,uint32 def_code,
- int line, const char *file)
+
+void error_packet_set(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
{
- int eclass=def_class;
- int ecode=def_code;
- int i=0;
+ bool force_nt_status = False;
+ bool force_dos_status = False;
- if (unix_ERR_class != SMB_SUCCESS) {
- eclass = unix_ERR_class;
- ecode = unix_ERR_code;
- unix_ERR_class = SMB_SUCCESS;
- unix_ERR_code = 0;
- } else {
- while (unix_smb_errmap[i].smbclass != 0) {
- if (unix_smb_errmap[i].unixerror == errno) {
- eclass = unix_smb_errmap[i].smbclass;
- ecode = unix_smb_errmap[i].smbcode;
- break;
- }
- i++;
- }
+ if (eclass == (uint8)-1) {
+ force_nt_status = True;
+ } else if (NT_STATUS_IS_DOS(ntstatus)) {
+ force_dos_status = True;
}
- return error_packet(outbuf,NT_STATUS_OK,eclass,ecode,line,file);
-}
-
-
-/****************************************************************************
- create an error packet. Normally called using the ERROR() macro
-****************************************************************************/
-int error_packet(char *outbuf,NTSTATUS ntstatus,
- uint8 eclass,uint32 ecode,int line, const char *file)
-{
- int outsize = set_message(outbuf,0,0,True);
- extern uint32 global_client_caps;
-
- if (errno != 0)
- DEBUG(3,("error string = %s\n",strerror(errno)));
-
- if (global_client_caps & CAP_STATUS32) {
+ if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
+ /* We're returning an NT error. */
if (NT_STATUS_V(ntstatus) == 0 && eclass) {
ntstatus = dos_to_ntstatus(eclass, ecode);
}
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
- get_nt_error_msg(ntstatus)));
- return outsize;
- }
+ nt_errstr(ntstatus)));
+ } else {
+ /* We're returning a DOS error only. */
+ if (NT_STATUS_IS_DOS(ntstatus)) {
+ eclass = NT_STATUS_DOS_CLASS(ntstatus);
+ ecode = NT_STATUS_DOS_CODE(ntstatus);
+ } else if (eclass == 0 && NT_STATUS_V(ntstatus)) {
+ ntstatus_to_dos(ntstatus, &eclass, &ecode);
+ }
+
+ SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
+ SSVAL(outbuf,smb_rcls,eclass);
+ SSVAL(outbuf,smb_err,ecode);
+
+ DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
+ file, line,
+ (int)CVAL(outbuf,smb_com),
+ smb_fn_name(CVAL(outbuf,smb_com)),
+ eclass,
+ ecode));
+ }
+}
+
+int error_packet(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
+{
+ int outsize = srv_set_message(outbuf,0,0,True);
+ error_packet_set(outbuf, eclass, ecode, ntstatus, line, file);
+ return outsize;
+}
+
+void reply_nt_error(struct smb_request *req, NTSTATUS ntstatus,
+ int line, const char *file)
+{
+ TALLOC_FREE(req->outbuf);
+ reply_outbuf(req, 0, 0);
+ error_packet_set((char *)req->outbuf, 0, 0, ntstatus, line, file);
+}
+
+void reply_force_nt_error(struct smb_request *req, NTSTATUS ntstatus,
+ int line, const char *file)
+{
+ TALLOC_FREE(req->outbuf);
+ reply_outbuf(req, 0, 0);
+ error_packet_set((char *)req->outbuf, -1, -1, ntstatus, line, file);
+}
+
+void reply_dos_error(struct smb_request *req, uint8 eclass, uint32 ecode,
+ int line, const char *file)
+{
+ TALLOC_FREE(req->outbuf);
+ reply_outbuf(req, 0, 0);
+ error_packet_set((char *)req->outbuf, eclass, ecode, NT_STATUS_OK, line,
+ file);
+}
+
+void reply_both_error(struct smb_request *req, uint8 eclass, uint32 ecode,
+ NTSTATUS status, int line, const char *file)
+{
+ TALLOC_FREE(req->outbuf);
+ reply_outbuf(req, 0, 0);
+ error_packet_set((char *)req->outbuf, eclass, ecode, status,
+ line, file);
+}
- if (eclass == 0 && NT_STATUS_V(ntstatus)) {
- ntstatus_to_dos(ntstatus, &eclass, &ecode);
+void reply_openerror(struct smb_request *req, NTSTATUS status)
+{
+ if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
+ /*
+ * We hit an existing file, and if we're returning DOS
+ * error codes OBJECT_NAME_COLLISION would map to
+ * ERRDOS/183, we need to return ERRDOS/80, see bug
+ * 4852.
+ */
+ reply_botherror(req, NT_STATUS_OBJECT_NAME_COLLISION,
+ ERRDOS, ERRfilexists);
+ } else {
+ reply_nterror(req, status);
}
+}
- SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
- SSVAL(outbuf,smb_rcls,eclass);
- SSVAL(outbuf,smb_err,ecode);
+void reply_unix_error(struct smb_request *req, uint8 defclass, uint32 defcode,
+ NTSTATUS defstatus, int line, const char *file)
+{
+ int eclass=defclass;
+ int ecode=defcode;
+ NTSTATUS ntstatus = defstatus;
+ int i=0;
- DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
- file, line,
- (int)CVAL(outbuf,smb_com),
- smb_fn_name(CVAL(outbuf,smb_com)),
- eclass,
- ecode));
+ TALLOC_FREE(req->outbuf);
+ reply_outbuf(req, 0, 0);
- return outsize;
+ if (errno != 0) {
+ DEBUG(3,("unix_error_packet: error string = %s\n",
+ strerror(errno)));
+
+ while (unix_dos_nt_errmap[i].dos_class != 0) {
+ if (unix_dos_nt_errmap[i].unix_error == errno) {
+ eclass = unix_dos_nt_errmap[i].dos_class;
+ ecode = unix_dos_nt_errmap[i].dos_code;
+ ntstatus = unix_dos_nt_errmap[i].nt_error;
+ break;
+ }
+ i++;
+ }
+ }
+
+ error_packet_set((char *)req->outbuf, eclass, ecode, ntstatus,
+ line, file);
}
git.samba.org / samba.git / blobdiff