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DEFINITIONS
This source file includes following definitions.
- winbindd_get_creds
- winbindd_store_creds
- winbindd_update_creds_by_info3
- winbindd_update_creds_by_sid
- winbindd_update_creds_by_name
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind daemon - cached credentials funcions
5
6 Copyright (C) Guenther Deschner 2005
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "winbindd.h"
24 #undef DBGC_CLASS
25 #define DBGC_CLASS DBGC_WINBIND
26
27 #define MAX_CACHED_LOGINS 10
28
29 NTSTATUS winbindd_get_creds(struct winbindd_domain *domain,
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30 TALLOC_CTX *mem_ctx,
31 const DOM_SID *sid,
32 struct netr_SamInfo3 **info3,
33 const uint8 *cached_nt_pass[NT_HASH_LEN],
34 const uint8 *cred_salt[NT_HASH_LEN])
35 {
36 struct netr_SamInfo3 *info;
37 NTSTATUS status;
38
39 status = wcache_get_creds(domain, mem_ctx, sid, cached_nt_pass, cred_salt);
40 if (!NT_STATUS_IS_OK(status)) {
41 return status;
42 }
43
44 info = netsamlogon_cache_get(mem_ctx, sid);
45 if (info == NULL) {
46 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
47 }
48
49 *info3 = info;
50
51 return NT_STATUS_OK;
52 }
53
54
55 NTSTATUS winbindd_store_creds(struct winbindd_domain *domain,
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56 TALLOC_CTX *mem_ctx,
57 const char *user,
58 const char *pass,
59 struct netr_SamInfo3 *info3,
60 const DOM_SID *user_sid)
61 {
62 NTSTATUS status;
63 uchar nt_pass[NT_HASH_LEN];
64 DOM_SID cred_sid;
65
66 if (info3 != NULL) {
67
68 DOM_SID sid;
69 sid_copy(&sid, info3->base.domain_sid);
70 sid_append_rid(&sid, info3->base.rid);
71 sid_copy(&cred_sid, &sid);
72 info3->base.user_flags |= NETLOGON_CACHED_ACCOUNT;
73
74 } else if (user_sid != NULL) {
75
76 sid_copy(&cred_sid, user_sid);
77
78 } else if (user != NULL) {
79
80 /* do lookup ourself */
81
82 enum lsa_SidType type;
83
84 if (!lookup_cached_name(mem_ctx,
85 domain->name,
86 user,
87 &cred_sid,
88 &type)) {
89 return NT_STATUS_NO_SUCH_USER;
90 }
91 } else {
92 return NT_STATUS_INVALID_PARAMETER;
93 }
94
95 if (pass) {
96
97 int count = 0;
98
99 status = wcache_count_cached_creds(domain, &count);
100 if (!NT_STATUS_IS_OK(status)) {
101 return status;
102 }
103
104 DEBUG(11,("we have %d cached creds\n", count));
105
106 if (count + 1 > MAX_CACHED_LOGINS) {
107
108 DEBUG(10,("need to delete the oldest cached login\n"));
109
110 status = wcache_remove_oldest_cached_creds(domain, &cred_sid);
111 if (!NT_STATUS_IS_OK(status)) {
112 DEBUG(10,("failed to remove oldest cached cred: %s\n",
113 nt_errstr(status)));
114 return status;
115 }
116 }
117
118 E_md4hash(pass, nt_pass);
119
120 dump_data_pw("nt_pass", nt_pass, NT_HASH_LEN);
121
122 status = wcache_save_creds(domain, mem_ctx, &cred_sid, nt_pass);
123 if (!NT_STATUS_IS_OK(status)) {
124 return status;
125 }
126 }
127
128 if (info3 != NULL && user != NULL) {
129 if (!netsamlogon_cache_store(user, info3)) {
130 return NT_STATUS_ACCESS_DENIED;
131 }
132 }
133
134 return NT_STATUS_OK;
135 }
136
137 NTSTATUS winbindd_update_creds_by_info3(struct winbindd_domain *domain,
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138 TALLOC_CTX *mem_ctx,
139 const char *user,
140 const char *pass,
141 struct netr_SamInfo3 *info3)
142 {
143 return winbindd_store_creds(domain, mem_ctx, user, pass, info3, NULL);
144 }
145
146 NTSTATUS winbindd_update_creds_by_sid(struct winbindd_domain *domain,
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147 TALLOC_CTX *mem_ctx,
148 const DOM_SID *sid,
149 const char *pass)
150 {
151 return winbindd_store_creds(domain, mem_ctx, NULL, pass, NULL, sid);
152 }
153
154 NTSTATUS winbindd_update_creds_by_name(struct winbindd_domain *domain,
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155 TALLOC_CTX *mem_ctx,
156 const char *user,
157 const char *pass)
158 {
159 return winbindd_store_creds(domain, mem_ctx, user, pass, NULL, NULL);
160 }
161
162