1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
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
(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.
*/
#include "includes.h"
/* these can be set by some functions to override the error codes */
int unix_ERR_class=SMB_SUCCESS;
int unix_ERR_code=0;
NTSTATUS unix_ERR_ntstatus = NT_STATUS_OK;
/* From lib/error.c */
extern struct unix_error_map unix_dos_nt_errmap[];
/****************************************************************************
Create an error packet from a cached error.
****************************************************************************/
int cached_error_packet(char *outbuf,files_struct *fsp,int line,const char *file)
{
write_bmpx_struct *wbmpx = fsp->wbmpx_ptr;
int32 eclass = wbmpx->wr_errclass;
int32 err = wbmpx->wr_error;
/* We can now delete the auxiliary struct */
free((char *)wbmpx);
fsp->wbmpx_ptr = NULL;
return error_packet(outbuf,NT_STATUS_OK,eclass,err,line,file);
}
/****************************************************************************
Create an error packet from errno.
****************************************************************************/
int unix_error_packet(char *outbuf,int def_class,uint32 def_code,
int line, const char *file)
{
int eclass=def_class;
int ecode=def_code;
NTSTATUS ntstatus = NT_STATUS_OK;
int i=0;
if (unix_ERR_class != SMB_SUCCESS) {
eclass = unix_ERR_class;
ecode = unix_ERR_code;
ntstatus = unix_ERR_ntstatus;
unix_ERR_class = SMB_SUCCESS;
unix_ERR_code = 0;
unix_ERR_ntstatus = NT_STATUS_OK;
} else {
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++;
}
}
return error_packet(outbuf,ntstatus,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 defined(DEVELOPER)
if (unix_ERR_class != SMB_SUCCESS || unix_ERR_code != 0 || !NT_STATUS_IS_OK(unix_ERR_ntstatus))
smb_panic("logic error in error processing");
#endif
/*
* We can explicitly force 32 bit error codes even when the
* parameter "nt status" is set to no by pre-setting the
* FLAGS2_32_BIT_ERROR_CODES bit in the smb_flg2 outbuf.
* This is to allow work arounds for client bugs that are needed
* when talking with clients that normally expect nt status codes. JRA.
*/
if ((lp_nt_status_support() || (SVAL(outbuf,smb_flg2) & FLAGS2_32_BIT_ERROR_CODES)) && (global_client_caps & CAP_STATUS32)) {
if (NT_STATUS_V(ntstatus) == 0 && eclass)
ntstatus = dos_to_ntstatus(eclass, ecode);
SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
nt_errstr(ntstatus)));
return outsize;
}
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));
return outsize;
}
|
