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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
Unix SMB/CIFS implementation.
FAKE FILE suppport, for faking up special files windows want access to
Copyright (C) Stefan (metze) Metzmacher 2003
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"
/****************************************************************************
Open a file with a share mode.
****************************************************************************/
files_struct *open_fake_file_shared1(enum FAKE_FILE_TYPE fake_file_type, connection_struct *conn,char *fname,
SMB_STRUCT_STAT *psbuf,
uint32 desired_access,
int share_mode,int ofun, mode_t mode,int oplock_request,
int *Access,int *action)
{
extern struct current_user current_user;
int flags=0;
files_struct *fsp = NULL;
if (fake_file_type == 0) {
return open_file_shared1(conn,fname,psbuf,desired_access,
share_mode,ofun,mode,
oplock_request,Access,action);
}
/* access check */
if (conn->admin_user != True) {
DEBUG(1,("access_denied to service[%s] file[%s] user[%s]\n",
lp_servicename(SNUM(conn)),fname,conn->user));
errno = EACCES;
return NULL;
}
fsp = file_new(conn);
if(!fsp)
return NULL;
DEBUG(5,("open_fake_file_shared1: fname = %s, FID = %d, share_mode = %x, ofun = %x, mode = %o, oplock request = %d\n",
fname, fsp->fnum, share_mode, ofun, (int)mode, oplock_request ));
if (!check_name(fname,conn)) {
file_free(fsp);
return NULL;
}
fsp->fd = -1;
fsp->mode = psbuf->st_mode;
fsp->inode = psbuf->st_ino;
fsp->dev = psbuf->st_dev;
fsp->vuid = current_user.vuid;
fsp->size = psbuf->st_size;
fsp->pos = -1;
fsp->can_lock = True;
fsp->can_read = ((flags & O_WRONLY)==0);
fsp->can_write = ((flags & (O_WRONLY|O_RDWR))!=0);
fsp->share_mode = 0;
fsp->desired_access = desired_access;
fsp->print_file = False;
fsp->modified = False;
fsp->oplock_type = NO_OPLOCK;
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
fsp->is_stat = False;
fsp->directory_delete_on_close = False;
fsp->conn = conn;
string_set(&fsp->fsp_name,fname);
fsp->wcp = NULL; /* Write cache pointer. */
fsp->fake_file_handle = init_fake_file_handle(fake_file_type);
if (fsp->fake_file_handle==NULL) {
file_free(fsp);
return NULL;
}
conn->num_files_open++;
return fsp;
}
static FAKE_FILE fake_files[] = {
#ifdef WITH_QUOTAS
{FAKE_FILE_NAME_QUOTA, FAKE_FILE_TYPE_QUOTA, init_quota_handle, destroy_quota_handle},
#endif /* WITH_QUOTAS */
{NULL, FAKE_FILE_TYPE_NONE, NULL, NULL }
};
int is_fake_file(char *fname)
{
int i;
if (!fname)
return 0;
for (i=0;fake_files[i].name!=NULL;i++) {
if (strncmp(fname,fake_files[i].name,strlen(fake_files[i].name))==0) {
DEBUG(5,("is_fake_file: [%s] is a fake file\n",fname));
return fake_files[i].type;
}
}
return FAKE_FILE_TYPE_NONE;
}
struct _FAKE_FILE_HANDLE *init_fake_file_handle(enum FAKE_FILE_TYPE type)
{
TALLOC_CTX *mem_ctx = NULL;
FAKE_FILE_HANDLE *fh = NULL;
int i;
for (i=0;fake_files[i].name!=NULL;i++) {
if (fake_files[i].type==type) {
DEBUG(5,("init_fake_file_handle: for [%s]\n",fake_files[i].name));
if ((mem_ctx=talloc_init("fake_file_handle"))==NULL) {
DEBUG(0,("talloc_init(fake_file_handle) failed.\n"));
return NULL;
}
if ((fh =(FAKE_FILE_HANDLE *)talloc_zero(mem_ctx, sizeof(FAKE_FILE_HANDLE)))==NULL) {
DEBUG(0,("talloc_zero() failed.\n"));
talloc_destroy(mem_ctx);
return NULL;
}
fh->type = type;
fh->mem_ctx = mem_ctx;
if (fake_files[i].init_pd)
fh->pd = fake_files[i].init_pd(fh->mem_ctx);
fh->free_pd = fake_files[i].free_pd;
return fh;
}
}
return NULL;
}
void destroy_fake_file_handle(FAKE_FILE_HANDLE **fh)
{
if (!fh||!(*fh))
return ;
if ((*fh)->free_pd)
(*fh)->free_pd(&(*fh)->pd);
talloc_destroy((*fh)->mem_ctx);
(*fh) = NULL;
}
|
