source: trunk/server/source4/winbind/wb_sid2domain.c

Last change on this file was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 6.1 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Find and init a domain struct for a SID
5
6 Copyright (C) Volker Lendecke 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 "libcli/composite/composite.h"
24#include "winbind/wb_server.h"
25#include "smbd/service_task.h"
26#include "libcli/security/security.h"
27#include "../lib/util/dlinklist.h"
28#include "param/param.h"
29
30static struct wbsrv_domain *find_domain_from_sid(struct wbsrv_service *service,
31 const struct dom_sid *sid)
32{
33 struct wbsrv_domain *domain;
34
35 for (domain = service->domains; domain!=NULL; domain = domain->next) {
36 if (dom_sid_equal(domain->info->sid, sid)) {
37 break;
38 }
39 if (dom_sid_in_domain(domain->info->sid, sid)) {
40 break;
41 }
42 }
43 return domain;
44}
45
46struct sid2domain_state {
47 struct composite_context *ctx;
48 struct wbsrv_service *service;
49 struct dom_sid *sid;
50
51 struct wbsrv_domain *domain;
52};
53
54static void sid2domain_recv_dom_info(struct composite_context *ctx);
55static void sid2domain_recv_name(struct composite_context *ctx);
56static void sid2domain_recv_trusted_dom_info(struct composite_context *ctx);
57static void sid2domain_recv_init(struct composite_context *ctx);
58
59struct composite_context *wb_sid2domain_send(TALLOC_CTX *mem_ctx,
60 struct wbsrv_service *service,
61 const struct dom_sid *sid)
62{
63 struct composite_context *result, *ctx;
64 struct sid2domain_state *state;
65 DEBUG(5, ("wb_sid2domain_send called\n"));
66 result = composite_create(mem_ctx, service->task->event_ctx);
67 if (result == NULL) goto failed;
68
69 state = talloc(result, struct sid2domain_state);
70 if (state == NULL) goto failed;
71 state->ctx = result;
72 result->private_data = state;
73
74 state->service = service;
75 state->sid = dom_sid_dup(state, sid);
76 if (state->sid == NULL) goto failed;
77
78 state->domain = find_domain_from_sid(service, sid);
79 if (state->domain != NULL) {
80 result->status = NT_STATUS_OK;
81 composite_done(result);
82 return result;
83 }
84
85 if (dom_sid_equal(service->primary_sid, sid) ||
86 dom_sid_in_domain(service->primary_sid, sid)) {
87 ctx = wb_get_dom_info_send(state, service,
88 lpcfg_workgroup(service->task->lp_ctx),
89 lpcfg_realm(service->task->lp_ctx),
90 service->primary_sid);
91 if (ctx == NULL) goto failed;
92 ctx->async.fn = sid2domain_recv_dom_info;
93 ctx->async.private_data = state;
94 return result;
95 }
96
97 ctx = wb_cmd_lookupsid_send(state, service, state->sid);
98 if (ctx == NULL) goto failed;
99 composite_continue(result, ctx, sid2domain_recv_name, state);
100
101 return result;
102
103 failed:
104 talloc_free(result);
105 return NULL;
106
107}
108
109static void sid2domain_recv_dom_info(struct composite_context *ctx)
110{
111 struct sid2domain_state *state =
112 talloc_get_type(ctx->async.private_data,
113 struct sid2domain_state);
114 struct wb_dom_info *info;
115
116 state->ctx->status = wb_get_dom_info_recv(ctx, state, &info);
117 if (!composite_is_ok(state->ctx)) return;
118
119 ctx = wb_init_domain_send(state, state->service, info);
120
121 composite_continue(state->ctx, ctx, sid2domain_recv_init, state);
122}
123
124static void sid2domain_recv_name(struct composite_context *ctx)
125{
126 struct sid2domain_state *state =
127 talloc_get_type(ctx->async.private_data,
128 struct sid2domain_state);
129 struct wb_sid_object *name;
130
131 state->ctx->status = wb_cmd_lookupsid_recv(ctx, state, &name);
132 if (!composite_is_ok(state->ctx)) return;
133
134 if (name->type == SID_NAME_UNKNOWN) {
135 composite_error(state->ctx, NT_STATUS_NO_SUCH_DOMAIN);
136 return;
137 }
138
139 if (name->type != SID_NAME_DOMAIN) {
140 state->sid->num_auths -= 1;
141 }
142
143 ctx = wb_trusted_dom_info_send(state, state->service, name->domain,
144 state->sid);
145
146 composite_continue(state->ctx, ctx, sid2domain_recv_trusted_dom_info,
147 state);
148}
149
150static void sid2domain_recv_trusted_dom_info(struct composite_context *ctx)
151{
152 struct sid2domain_state *state =
153 talloc_get_type(ctx->async.private_data,
154 struct sid2domain_state);
155 struct wb_dom_info *info;
156
157 state->ctx->status = wb_trusted_dom_info_recv(ctx, state, &info);
158 if (!composite_is_ok(state->ctx)) return;
159
160 ctx = wb_init_domain_send(state, state->service, info);
161
162 composite_continue(state->ctx, ctx, sid2domain_recv_init, state);
163}
164
165static void sid2domain_recv_init(struct composite_context *ctx)
166{
167 struct sid2domain_state *state =
168 talloc_get_type(ctx->async.private_data,
169 struct sid2domain_state);
170 struct wbsrv_domain *existing;
171
172 state->ctx->status = wb_init_domain_recv(ctx, state,
173 &state->domain);
174 if (!composite_is_ok(state->ctx)) {
175 DEBUG(10, ("Could not init domain\n"));
176 return;
177 }
178
179 existing = find_domain_from_sid(state->service, state->sid);
180 if (existing != NULL) {
181 DEBUG(5, ("Initialized domain twice, dropping second one\n"));
182 talloc_free(state->domain);
183 state->domain = existing;
184 }
185
186 talloc_steal(state->service, state->domain);
187 DLIST_ADD(state->service->domains, state->domain);
188
189 composite_done(state->ctx);
190}
191
192NTSTATUS wb_sid2domain_recv(struct composite_context *ctx,
193 struct wbsrv_domain **result)
194{
195 NTSTATUS status = composite_wait(ctx);
196 if (NT_STATUS_IS_OK(status)) {
197 struct sid2domain_state *state =
198 talloc_get_type(ctx->private_data,
199 struct sid2domain_state);
200 *result = state->domain;
201 }
202 talloc_free(ctx);
203 return status;
204}
205
206NTSTATUS wb_sid2domain(TALLOC_CTX *mem_ctx, struct wbsrv_service *service,
207 const struct dom_sid *sid,
208 struct wbsrv_domain **result)
209{
210 struct composite_context *c = wb_sid2domain_send(mem_ctx, service,
211 sid);
212 return wb_sid2domain_recv(c, result);
213}
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