source: branches/samba-3.2.x/source/utils/netlookup.c@ 218

Last change on this file since 218 was 133, checked in by Paul Smedley, 17 years ago

Update trunk to 3.2.0pre3
File size: 5.1 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Name lookup.
5
6 Copyright (C) Jeremy Allison 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 "utils/net.h"
24
25/********************************************************
26 Connection cachine struct. Goes away when ctx destroyed.
27********************************************************/
28
29struct con_struct {
30 bool failed_connect;
31 NTSTATUS err;
32 struct cli_state *cli;
33 struct rpc_pipe_client *lsapipe;
34 POLICY_HND pol;
35};
36
37static struct con_struct *cs;
38
39/********************************************************
40 Close connection on context destruction.
41********************************************************/
42
43static int cs_destructor(struct con_struct *p)
44{
45 if (cs->cli) {
46 cli_shutdown(cs->cli);
47 }
48 cs = NULL;
49 return 0;
50}
51
52/********************************************************
53 Create the connection to localhost.
54********************************************************/
55
56static struct con_struct *create_cs(TALLOC_CTX *ctx, NTSTATUS *perr)
57{
58 NTSTATUS nt_status;
59 struct sockaddr_storage loopback_ss;
60
61 *perr = NT_STATUS_OK;
62
63 if (!interpret_string_addr(&loopback_ss, "127.0.0.1", AI_NUMERICHOST)) {
64 *perr = NT_STATUS_INVALID_PARAMETER;
65 return NULL;
66 }
67
68 if (cs) {
69 if (cs->failed_connect) {
70 *perr = cs->err;
71 return NULL;
72 }
73 return cs;
74 }
75
76 cs = TALLOC_P(ctx, struct con_struct);
77 if (!cs) {
78 *perr = NT_STATUS_NO_MEMORY;
79 return NULL;
80 }
81
82 ZERO_STRUCTP(cs);
83 talloc_set_destructor(cs, cs_destructor);
84
85 /* Connect to localhost with given username/password. */
86 /* JRA. Pretty sure we can just do this anonymously.... */
87#if 0
88 if (!opt_password && !opt_machine_pass) {
89 char *pass = getpass("Password:");
90 if (pass) {
91 opt_password = SMB_STRDUP(pass);
92 }
93 }
94#endif
95
96 nt_status = cli_full_connection(&cs->cli, global_myname(), global_myname(),
97 &loopback_ss, 0,
98 "IPC$", "IPC",
99#if 0
100 opt_user_name,
101 opt_workgroup,
102 opt_password,
103#else
104 "",
105 opt_workgroup,
106 "",
107#endif
108 0,
109 Undefined,
110 NULL);
111
112 if (!NT_STATUS_IS_OK(nt_status)) {
113 DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status)));
114 cs->failed_connect = True;
115 cs->err = nt_status;
116 *perr = nt_status;
117 return NULL;
118 }
119
120 cs->lsapipe = cli_rpc_pipe_open_noauth(cs->cli,
121 PI_LSARPC,
122 &nt_status);
123
124 if (cs->lsapipe == NULL) {
125 DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status)));
126 cs->failed_connect = True;
127 cs->err = nt_status;
128 *perr = nt_status;
129 return NULL;
130 }
131
132 nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, True,
133 SEC_RIGHTS_MAXIMUM_ALLOWED,
134 &cs->pol);
135
136 if (!NT_STATUS_IS_OK(nt_status)) {
137 DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status)));
138 cs->failed_connect = True;
139 cs->err = nt_status;
140 *perr = nt_status;
141 return NULL;
142 }
143
144 return cs;
145}
146
147/********************************************************
148 Do a lookup_sids call to localhost.
149 Check if the local machine is authoritative for this sid. We can't
150 check if this is our SID as that's stored in the root-read-only
151 secrets.tdb.
152 The local smbd will also ask winbindd for us, so we don't have to.
153********************************************************/
154
155NTSTATUS net_lookup_name_from_sid(TALLOC_CTX *ctx,
156 DOM_SID *psid,
157 const char **ppdomain,
158 const char **ppname)
159{
160 NTSTATUS nt_status;
161 struct con_struct *csp = NULL;
162 char **domains;
163 char **names;
164 enum lsa_SidType *types;
165
166 *ppdomain = NULL;
167 *ppname = NULL;
168
169 csp = create_cs(ctx, &nt_status);
170 if (csp == NULL) {
171 return nt_status;
172 }
173
174 nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx,
175 &csp->pol,
176 1, psid,
177 &domains,
178 &names,
179 &types);
180
181 if (!NT_STATUS_IS_OK(nt_status)) {
182 return nt_status;
183 }
184
185 *ppdomain = domains[0];
186 *ppname = names[0];
187 /* Don't care about type here. */
188
189 /* Converted OK */
190 return NT_STATUS_OK;
191}
192
193/********************************************************
194 Do a lookup_names call to localhost.
195********************************************************/
196
197NTSTATUS net_lookup_sid_from_name(TALLOC_CTX *ctx, const char *full_name, DOM_SID *pret_sid)
198{
199 NTSTATUS nt_status;
200 struct con_struct *csp = NULL;
201 DOM_SID *sids = NULL;
202 enum lsa_SidType *types = NULL;
203
204 csp = create_cs(ctx, &nt_status);
205 if (csp == NULL) {
206 return nt_status;
207 }
208
209 nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx,
210 &csp->pol,
211 1,
212 &full_name,
213 NULL, 1,
214 &sids, &types);
215
216 if (!NT_STATUS_IS_OK(nt_status)) {
217 return nt_status;
218 }
219
220 *pret_sid = sids[0];
221
222 /* Converted OK */
223 return NT_STATUS_OK;
224}
Note: See TracBrowser for help on using the repository browser.