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
|
/* Copyright (C) 2014 GSS-NTLMSSP contributors, see COPYING for License */
#include "config.h"
#if HAVE_WBCLIENT
#include <errno.h>
#include <string.h>
#include "gss_ntlmssp.h"
#include "gss_ntlmssp_winbind.h"
#include <wbclient.h>
uint32_t winbind_get_names(char **computer, char **domain)
{
struct wbcInterfaceDetails *details = NULL;
wbcErr wbc_status;
int ret = ENOENT;
wbc_status = wbcInterfaceDetails(&details);
if (!WBC_ERROR_IS_OK(wbc_status)) goto done;
if (computer) {
*computer = strdup(details->netbios_name);
if (!*computer) {
ret = ENOMEM;
goto done;
}
}
if (domain) {
*domain = strdup(details->netbios_domain);
if (!*domain) {
ret = ENOMEM;
goto done;
}
}
ret = 0;
done:
if (ret) {
if (computer) free(*computer);
}
wbcFreeMemory(details);
return ret;
}
uint32_t winbind_get_creds(struct gssntlm_name *name,
struct gssntlm_cred *cred)
{
struct wbcCredentialCacheParams params;
struct wbcCredentialCacheInfo *result;
struct wbcInterfaceDetails *details = NULL;
wbcErr wbc_status;
int ret = ENOENT;
if (name && name->data.user.domain) {
params.domain_name = name->data.user.domain;
} else {
wbc_status = wbcInterfaceDetails(&details);
if (!WBC_ERROR_IS_OK(wbc_status)) goto done;
params.domain_name = details->netbios_domain;
}
if (name && name->data.user.name) {
params.account_name = name->data.user.name;
} else {
params.account_name = getenv("NTLMUSER");
if (!params.account_name) {
params.account_name = getenv("USER");
}
if (!params.account_name) goto done;
}
params.level = WBC_CREDENTIAL_CACHE_LEVEL_NTLMSSP;
params.num_blobs = 0;
params.blobs = NULL;
wbc_status = wbcCredentialCache(¶ms, &result, NULL);
if(!WBC_ERROR_IS_OK(wbc_status)) goto done;
/* Yes, winbind seems to think it has credentials for us */
wbcFreeMemory(result);
cred->type = GSSNTLM_CRED_EXTERNAL;
cred->cred.external.user.type = GSSNTLM_NAME_USER;
cred->cred.external.user.data.user.domain = strdup(params.domain_name);
if (!cred->cred.external.user.data.user.domain) {
ret = ENOMEM;
goto done;
}
cred->cred.external.user.data.user.name = strdup(params.account_name);
if (!cred->cred.external.user.data.user.name) {
ret = ENOMEM;
goto done;
}
ret = 0;
done:
wbcFreeMemory(details);
return ret;
}
uint32_t winbind_srv_auth(char *user, char *domain,
char *workstation, uint8_t *challenge,
struct ntlm_buffer *nt_chal_resp,
struct ntlm_buffer *lm_chal_resp,
struct ntlm_key *ntlmv2_key)
{
struct wbcAuthUserParams wbc_params = { 0 };
struct wbcAuthUserInfo *wbc_info = NULL;
struct wbcAuthErrorInfo *wbc_err = NULL;
wbcErr wbc_status;
if (ntlmv2_key->length != 16) {
return EINVAL;
}
wbc_params.account_name = user;
wbc_params.domain_name = domain;
wbc_params.workstation_name = workstation;
wbc_params.flags = 0;
wbc_params.parameter_control =
WBC_MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT |
WBC_MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT;
wbc_params.level = WBC_AUTH_USER_LEVEL_RESPONSE;
memcpy(wbc_params.password.response.challenge, challenge, 8);
wbc_params.password.response.nt_length = nt_chal_resp->length;
wbc_params.password.response.nt_data = nt_chal_resp->data;
wbc_params.password.response.lm_length = lm_chal_resp->length;
wbc_params.password.response.lm_data = lm_chal_resp->data;
wbc_status = wbcAuthenticateUserEx(&wbc_params, &wbc_info, &wbc_err);
if (!WBC_ERROR_IS_OK(wbc_status)) {
/* TODO: use wbcErrorString, to save error message */
wbcFreeMemory(wbc_err);
return EACCES;
}
memcpy(ntlmv2_key->data, wbc_info->user_session_key, ntlmv2_key->length);
wbcFreeMemory(wbc_info);
return 0;
}
#endif
|
