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
|
/*
Unix SMB/Netbios implementation.
Version 2.0
Winbind authentication mechnism
Copyright (C) Tim Potter 2000
Copyright (C) Andrew Bartlett 2001
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"
/* Prototypes from common.h */
NSS_STATUS winbindd_request(int req_type,
struct winbindd_request *request,
struct winbindd_response *response);
/* Authenticate a user with a challenge/response */
static NTSTATUS check_winbind_security(const struct auth_context *auth_context,
void *my_private_data,
TALLOC_CTX *mem_ctx,
const auth_usersupplied_info *user_info,
auth_serversupplied_info **server_info)
{
struct winbindd_request request;
struct winbindd_response response;
NSS_STATUS result;
struct passwd *pw;
NTSTATUS nt_status;
if (!user_info) {
return NT_STATUS_UNSUCCESSFUL;
}
if (!auth_context) {
DEBUG(3,("Password for user %s cannot be checked because we have no auth_info to get the challenge from.\n",
user_info->internal_username.str));
return NT_STATUS_UNSUCCESSFUL;
}
/* Send off request */
ZERO_STRUCT(request);
ZERO_STRUCT(response);
snprintf(request.data.auth_crap.user, sizeof(request.data.auth_crap.user),
"%s\\%s", user_info->domain.str, user_info->smb_name.str);
fstrcpy(request.data.auth_crap.user, user_info->smb_name.str);
fstrcpy(request.data.auth_crap.domain, user_info->domain.str);
memcpy(request.data.auth_crap.chal, auth_context->challenge.data, sizeof(request.data.auth_crap.chal));
request.data.auth_crap.lm_resp_len = MIN(user_info->lm_resp.length,
sizeof(request.data.auth_crap.lm_resp));
request.data.auth_crap.nt_resp_len = MIN(user_info->nt_resp.length,
sizeof(request.data.auth_crap.nt_resp));
memcpy(request.data.auth_crap.lm_resp, user_info->lm_resp.data,
sizeof(request.data.auth_crap.lm_resp_len));
memcpy(request.data.auth_crap.nt_resp, user_info->nt_resp.data,
request.data.auth_crap.lm_resp_len);
result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
if (result == NSS_STATUS_SUCCESS) {
pw = Get_Pwnam(user_info->internal_username.str);
if (pw) {
if (make_server_info_pw(server_info, pw)) {
nt_status = NT_STATUS_OK;
} else {
nt_status = NT_STATUS_NO_MEMORY;
}
} else {
nt_status = NT_STATUS_NO_SUCH_USER;
}
} else {
nt_status = NT_STATUS_LOGON_FAILURE;
}
return nt_status;
}
/* module initialisation */
BOOL auth_init_winbind(struct auth_context *auth_context, auth_methods **auth_method)
{
if (!make_auth_methods(auth_context, auth_method)) {
return False;
}
(*auth_method)->auth = check_winbind_security;
return True;
}
|
