Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : Authentication utility functions
4 : Copyright (C) Volker Lendecke 2010
5 :
6 : This program is free software; you can redistribute it and/or modify
7 : it under the terms of the GNU General Public License as published by
8 : the Free Software Foundation; either version 3 of the License, or
9 : (at your option) any later version.
10 :
11 : This program is distributed in the hope that it will be useful,
12 : but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 : GNU General Public License for more details.
15 :
16 : You should have received a copy of the GNU General Public License
17 : along with this program. If not, see <http://www.gnu.org/licenses/>.
18 : */
19 :
20 : #include "includes.h"
21 : #include "auth.h"
22 : #include "librpc/gen_ndr/samr.h"
23 : #include "../lib/tsocket/tsocket.h"
24 :
25 : #undef DBGC_CLASS
26 : #define DBGC_CLASS DBGC_AUTH
27 :
28 104 : static int clear_samr_Password(struct samr_Password *password)
29 : {
30 104 : memset(password->hash, '\0', sizeof(password->hash));
31 104 : return 0;
32 : }
33 :
34 0 : static int clear_string(char *password)
35 : {
36 0 : memset(password, '\0', strlen(password));
37 0 : return 0;
38 : }
39 :
40 : /****************************************************************************
41 : Create an auth_usersupplied_data structure
42 : ****************************************************************************/
43 :
44 29226 : NTSTATUS make_user_info(TALLOC_CTX *mem_ctx,
45 : struct auth_usersupplied_info **ret_user_info,
46 : const char *smb_name,
47 : const char *internal_username,
48 : const char *client_domain,
49 : const char *domain,
50 : const char *workstation_name,
51 : const struct tsocket_address *remote_address,
52 : const struct tsocket_address *local_address,
53 : const char *service_description,
54 : const DATA_BLOB *lm_pwd,
55 : const DATA_BLOB *nt_pwd,
56 : const struct samr_Password *lm_interactive_pwd,
57 : const struct samr_Password *nt_interactive_pwd,
58 : const char *plaintext_password,
59 : enum auth_password_state password_state)
60 : {
61 0 : struct auth_usersupplied_info *user_info;
62 29226 : *ret_user_info = NULL;
63 :
64 29226 : DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
65 :
66 29226 : user_info = talloc_zero(mem_ctx, struct auth_usersupplied_info);
67 29226 : if (user_info == NULL) {
68 0 : DEBUG(0,("talloc failed for user_info\n"));
69 0 : return NT_STATUS_NO_MEMORY;
70 : }
71 :
72 29226 : DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
73 :
74 29226 : user_info->client.account_name = talloc_strdup(user_info, smb_name);
75 29226 : if (user_info->client.account_name == NULL) {
76 0 : goto nomem;
77 : }
78 :
79 29226 : user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
80 29226 : if (user_info->mapped.account_name == NULL) {
81 0 : goto nomem;
82 : }
83 :
84 29226 : user_info->mapped.domain_name = talloc_strdup(user_info, domain);
85 29226 : if (user_info->mapped.domain_name == NULL) {
86 0 : goto nomem;
87 : }
88 :
89 29226 : user_info->client.domain_name = talloc_strdup(user_info, client_domain);
90 29226 : if (user_info->client.domain_name == NULL) {
91 0 : goto nomem;
92 : }
93 :
94 29226 : user_info->workstation_name = talloc_strdup(user_info, workstation_name);
95 29226 : if (user_info->workstation_name == NULL) {
96 0 : goto nomem;
97 : }
98 :
99 29226 : user_info->remote_host = tsocket_address_copy(remote_address, user_info);
100 29226 : if (user_info->remote_host == NULL) {
101 0 : goto nomem;
102 : }
103 :
104 29226 : if (local_address != NULL) {
105 29226 : user_info->local_host = tsocket_address_copy(local_address,
106 : user_info);
107 29226 : if (user_info->local_host == NULL) {
108 0 : goto nomem;
109 : }
110 : }
111 :
112 29226 : user_info->service_description = talloc_strdup(user_info, service_description);
113 29226 : if (user_info->service_description == NULL) {
114 0 : goto nomem;
115 : }
116 :
117 29226 : DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
118 :
119 29226 : if (lm_pwd && lm_pwd->data) {
120 28405 : user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
121 28405 : if (user_info->password.response.lanman.data == NULL) {
122 0 : goto nomem;
123 : }
124 : }
125 29226 : if (nt_pwd && nt_pwd->data) {
126 28558 : user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
127 28558 : if (user_info->password.response.nt.data == NULL) {
128 0 : goto nomem;
129 : }
130 : }
131 29226 : if (lm_interactive_pwd) {
132 52 : user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
133 52 : if (user_info->password.hash.lanman == NULL) {
134 0 : goto nomem;
135 : }
136 52 : memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
137 : sizeof(user_info->password.hash.lanman->hash));
138 52 : talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
139 : }
140 :
141 29226 : if (nt_interactive_pwd) {
142 52 : user_info->password.hash.nt = talloc(user_info, struct samr_Password);
143 52 : if (user_info->password.hash.nt == NULL) {
144 0 : goto nomem;
145 : }
146 52 : memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
147 : sizeof(user_info->password.hash.nt->hash));
148 52 : talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
149 : }
150 :
151 29226 : if (plaintext_password) {
152 0 : user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
153 0 : if (user_info->password.plaintext == NULL) {
154 0 : goto nomem;
155 : }
156 0 : talloc_set_destructor(user_info->password.plaintext, clear_string);
157 : }
158 :
159 29226 : user_info->password_state = password_state;
160 :
161 29226 : user_info->logon_parameters = 0;
162 :
163 29226 : DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
164 29226 : *ret_user_info = user_info;
165 29226 : return NT_STATUS_OK;
166 0 : nomem:
167 0 : TALLOC_FREE(user_info);
168 0 : return NT_STATUS_NO_MEMORY;
169 : }
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