source: branches/samba-3.5.x/source3/utils/netlookup.c@ 737

Last change on this file since 737 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 5.3 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 struct policy_handle 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(struct net_context *c,
57 TALLOC_CTX *ctx, NTSTATUS *perr)
58{
59 NTSTATUS nt_status;
60 struct sockaddr_storage loopback_ss;
61
62 *perr = NT_STATUS_OK;
63
64 if (!interpret_string_addr(&loopback_ss, "127.0.0.1", AI_NUMERICHOST)) {
65 *perr = NT_STATUS_INVALID_PARAMETER;
66 return NULL;
67 }
68
69 if (cs) {
70 if (cs->failed_connect) {
71 *perr = cs->err;
72 return NULL;
73 }
74 return cs;
75 }
76
77 cs = TALLOC_P(ctx, struct con_struct);
78 if (!cs) {
79 *perr = NT_STATUS_NO_MEMORY;
80 return NULL;
81 }
82
83 ZERO_STRUCTP(cs);
84 talloc_set_destructor(cs, cs_destructor);
85
86 /* Connect to localhost with given username/password. */
87 /* JRA. Pretty sure we can just do this anonymously.... */
88#if 0
89 if (!opt_password && !opt_machine_pass) {
90 char *pass = getpass("Password:");
91 if (pass) {
92 opt_password = SMB_STRDUP(pass);
93 }
94 }
95#endif
96
97 nt_status = cli_full_connection(&cs->cli, global_myname(), global_myname(),
98 &loopback_ss, 0,
99 "IPC$", "IPC",
100#if 0
101 c->opt_user_name,
102 c->opt_workgroup,
103 c->opt_password,
104#else
105 "",
106 c->opt_workgroup,
107 "",
108#endif
109 0,
110 Undefined,
111 NULL);
112
113 if (!NT_STATUS_IS_OK(nt_status)) {
114 DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status)));
115 cs->failed_connect = true;
116 cs->err = nt_status;
117 *perr = nt_status;
118 return NULL;
119 }
120
121 nt_status = cli_rpc_pipe_open_noauth(cs->cli,
122 &ndr_table_lsarpc.syntax_id,
123 &cs->lsapipe);
124
125 if (!NT_STATUS_IS_OK(nt_status)) {
126 DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status)));
127 cs->failed_connect = true;
128 cs->err = nt_status;
129 *perr = nt_status;
130 return NULL;
131 }
132
133 nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, true,
134 SEC_FLAG_MAXIMUM_ALLOWED,
135 &cs->pol);
136
137 if (!NT_STATUS_IS_OK(nt_status)) {
138 DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status)));
139 cs->failed_connect = true;
140 cs->err = nt_status;
141 *perr = nt_status;
142 return NULL;
143 }
144
145 return cs;
146}
147
148/********************************************************
149 Do a lookup_sids call to localhost.
150 Check if the local machine is authoritative for this sid. We can't
151 check if this is our SID as that's stored in the root-read-only
152 secrets.tdb.
153 The local smbd will also ask winbindd for us, so we don't have to.
154********************************************************/
155
156NTSTATUS net_lookup_name_from_sid(struct net_context *c,
157 TALLOC_CTX *ctx,
158 DOM_SID *psid,
159 const char **ppdomain,
160 const char **ppname)
161{
162 NTSTATUS nt_status;
163 struct con_struct *csp = NULL;
164 char **domains;
165 char **names;
166 enum lsa_SidType *types;
167
168 *ppdomain = NULL;
169 *ppname = NULL;
170
171 csp = create_cs(c, ctx, &nt_status);
172 if (csp == NULL) {
173 return nt_status;
174 }
175
176 nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx,
177 &csp->pol,
178 1, psid,
179 &domains,
180 &names,
181 &types);
182
183 if (!NT_STATUS_IS_OK(nt_status)) {
184 return nt_status;
185 }
186
187 *ppdomain = domains[0];
188 *ppname = names[0];
189 /* Don't care about type here. */
190
191 /* Converted OK */
192 return NT_STATUS_OK;
193}
194
195/********************************************************
196 Do a lookup_names call to localhost.
197********************************************************/
198
199NTSTATUS net_lookup_sid_from_name(struct net_context *c, TALLOC_CTX *ctx,
200 const char *full_name, DOM_SID *pret_sid)
201{
202 NTSTATUS nt_status;
203 struct con_struct *csp = NULL;
204 DOM_SID *sids = NULL;
205 enum lsa_SidType *types = NULL;
206
207 csp = create_cs(c, ctx, &nt_status);
208 if (csp == NULL) {
209 return nt_status;
210 }
211
212 nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx,
213 &csp->pol,
214 1,
215 &full_name,
216 NULL, 1,
217 &sids, &types);
218
219 if (!NT_STATUS_IS_OK(nt_status)) {
220 return nt_status;
221 }
222
223 *pret_sid = sids[0];
224
225 /* Converted OK */
226 return NT_STATUS_OK;
227}
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