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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/*
* Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup
* Copyright (C) Andrew Tridgell 1992-1998 Modified by Jeremy Allison 1995.
*
* 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"
#ifdef USE_SMBPASS_DB
static int grp_file_lock_depth = 0;
/***************************************************************
Start to enumerate the smbpasswd list. Returns a void pointer
to ensure no modification outside this module.
****************************************************************/
static void *startsmbfilegrpent(BOOL update)
{
static char s_readbuf[1024];
return startfilepwent(lp_smb_passgrp_file(), s_readbuf, sizeof(s_readbuf),
&grp_file_lock_depth, update);
}
/***************************************************************
End enumeration of the smbpasswd list.
****************************************************************/
static void endsmbfilegrpent(void *vp)
{
endfilepwent(vp, &grp_file_lock_depth);
}
/*************************************************************************
Return the current position in the smbpasswd list as an SMB_BIG_UINT.
This must be treated as an opaque token.
*************************************************************************/
static SMB_BIG_UINT getsmbfilegrppos(void *vp)
{
return getfilepwpos(vp);
}
/*************************************************************************
Set the current position in the smbpasswd list from an SMB_BIG_UINT.
This must be treated as an opaque token.
*************************************************************************/
static BOOL setsmbfilegrppos(void *vp, SMB_BIG_UINT tok)
{
return setfilepwpos(vp, tok);
}
/*************************************************************************
Routine to return the next entry in the smbpasswd list.
*************************************************************************/
static struct smb_passwd *getsmbfilegrpent(void *vp,
uint32 **grp_rids, int *num_grps,
uint32 **als_rids, int *num_alss)
{
/* Static buffers we will return. */
static struct smb_passwd pw_buf;
static pstring user_name;
struct passwd *pwfile;
pstring linebuf;
unsigned char *p;
int uidval;
size_t linebuf_len;
if (vp == NULL)
{
DEBUG(0,("getsmbfilegrpent: Bad password file pointer.\n"));
return NULL;
}
pwdb_init_smb(&pw_buf);
/*
* Scan the file, a line at a time.
*/
while ((linebuf_len = getfileline(vp, linebuf, sizeof(linebuf))) > 0)
{
/*
* The line we have should be of the form :-
*
* username:uid:domainrid1,domainrid2..:aliasrid1,aliasrid2..:
*/
/*
* As 256 is shorter than a pstring we don't need to check
* length here - if this ever changes....
*/
p = strncpyn(user_name, linebuf, sizeof(user_name), ':');
/* Go past ':' */
p++;
/* Get smb uid. */
p = Atoic((char *) p, &uidval, ":");
pw_buf.smb_name = user_name;
pw_buf.smb_userid = uidval;
/*
* Now get the password value - this should be 32 hex digits
* which are the ascii representations of a 16 byte string.
* Get two at a time and put them into the password.
*/
/* Skip the ':' */
p++;
if (grp_rids != NULL && num_grps != NULL)
{
int i;
p = get_numlist(p, grp_rids, num_grps);
if (p == NULL)
{
DEBUG(0,("getsmbfilegrpent: invalid line\n"));
return NULL;
}
for (i = 0; i < (*num_grps); i++)
{
(*grp_rids)[i] = pwdb_gid_to_group_rid((*grp_rids)[i]);
}
}
/* Skip the ':' */
p++;
if (als_rids != NULL && num_alss != NULL)
{
int i;
p = get_numlist(p, als_rids, num_alss);
if (p == NULL)
{
DEBUG(0,("getsmbfilegrpent: invalid line\n"));
return NULL;
}
for (i = 0; i < (*num_alss); i++)
{
(*als_rids)[i] = pwdb_gid_to_alias_rid((*als_rids)[i]);
}
}
pwfile = Get_Pwnam(pw_buf.smb_name, False);
if (pwfile == NULL)
{
DEBUG(0,("getsmbfilegrpent: smbpasswd database is corrupt!\n"));
DEBUG(0,("getsmbfilegrpent: username %s not in unix passwd database!\n", pw_buf.smb_name));
return NULL;
}
return &pw_buf;
}
DEBUG(5,("getsmbfilegrpent: end of file reached.\n"));
return NULL;
}
static struct passgrp_ops file_ops =
{
startsmbfilegrpent,
endsmbfilegrpent,
getsmbfilegrppos,
setsmbfilegrppos,
iterate_getsmbgrpnam, /* In passgrp.c */
iterate_getsmbgrpuid, /* In passgrp.c */
iterate_getsmbgrprid, /* In passgrp.c */
getsmbfilegrpent,
};
struct passgrp_ops *file_initialise_password_grp(void)
{
return &file_ops;
}
#else
/* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
void smbpass_dummy_function(void) { } /* stop some compilers complaining */
#endif /* USE_SMBPASS_DB */
|
