summaryrefslogtreecommitdiff
path: root/source4/winbind/wb_cmd_list_users.c
blob: 9260a422077814e499dc148abb04fa88029a160f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
/*
   Unix SMB/CIFS implementation.

   Command backend for wbinfo -u

   Copyright (C) Kai Blin 2007

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "libcli/composite/composite.h"
#include "winbind/wb_server.h"
#include "winbind/wb_async_helpers.h"
#include "winbind/wb_helper.h"
#include "smbd/service_task.h"
#include "nsswitch/winbindd_nss.h"
#include "libnet/libnet_proto.h"

struct cmd_list_users_state {
	struct composite_context *ctx;
	struct wbsrv_service *service;

	struct wbsrv_domain *domain;
	char *domain_name;
	uint resume_index;
	char *result;
};

static void cmd_list_users_recv_domain(struct composite_context *ctx);
static void cmd_list_users_recv_user_list(struct composite_context *ctx);

struct composite_context *wb_cmd_list_users_send(TALLOC_CTX *mem_ctx,
		struct wbsrv_service *service, const char *domain_name)
{
	struct composite_context *ctx, *result;
	struct cmd_list_users_state *state;

	DEBUG(5, ("wb_cmd_list_users_send called\n"));

	result = composite_create(mem_ctx, service->task->event_ctx);
	if (!result) return NULL;

	state = talloc(result, struct cmd_list_users_state);
	if (composite_nomem(state, result)) return result;

	state->ctx = result;
	result->private_data = state;
	state->service = service;
	state->resume_index = 0;
	state->result = talloc_strdup(state, "");
	if (composite_nomem(state->result, state->ctx)) return result;

	/*FIXME: We should look up the domain in the winbind request if it is
	 * set, not just take the primary domain. However, I want to get the
	 * libnet logic to work first. */

	if (domain_name && *domain_name != '\0') {
		state->domain_name = talloc_strdup(state, domain_name);
		if (composite_nomem(state->domain_name, state->ctx))
			return result;
	} else {
		state->domain_name = NULL;
	}

	ctx = wb_sid2domain_send(state, service, service->primary_sid);
	if (composite_nomem(ctx, state->ctx)) return result;

	composite_continue(state->ctx, ctx, cmd_list_users_recv_domain, state);
	return result;
}

static void cmd_list_users_recv_domain(struct composite_context *ctx)
{
	struct cmd_list_users_state *state = talloc_get_type(
			ctx->async.private_data, struct cmd_list_users_state);
	struct wbsrv_domain *domain;
	struct libnet_UserList *user_list;

	DEBUG(5, ("cmd_list_users_recv_domain called\n"));

	state->ctx->status = wb_sid2domain_recv(ctx, &domain);
	if (!composite_is_ok(state->ctx)) return;

	state->domain = domain;

	/* If this is non-null, we've looked up the domain given in the winbind
	 * request, otherwise we'll just use the default name.*/
	if (state->domain_name == NULL) {
		state->domain_name = talloc_strdup(state,
				domain->libnet_ctx->samr.name);
		if (composite_nomem(state->domain_name, state->ctx)) return;
	}

	user_list = talloc(state, struct libnet_UserList);
	if (composite_nomem(user_list, state->ctx)) return;

	user_list->in.domain_name = state->domain_name;

	/* Rafal suggested that 128 is a good number here. I don't like magic
	 * numbers too much, but for now it'll have to do.
	 */
	user_list->in.page_size = 128;
	user_list->in.resume_index = state->resume_index;

	ctx = libnet_UserList_send(domain->libnet_ctx, state, user_list, NULL);

	composite_continue(state->ctx, ctx, cmd_list_users_recv_user_list,
			state);
}

static void cmd_list_users_recv_user_list(struct composite_context *ctx)
{
	struct cmd_list_users_state *state = talloc_get_type(
			ctx->async.private_data, struct cmd_list_users_state);
	struct libnet_UserList *user_list;
	NTSTATUS status;
	int i;

	DEBUG(5, ("cmd_list_users_recv_user_list called\n"));

	user_list = talloc(state, struct libnet_UserList);
	if (composite_nomem(user_list, state->ctx)) return;

	status = libnet_UserList_recv(ctx, state, user_list);

	/* If NTSTATUS is neither OK nor MORE_ENTRIES, something broke */
	if (!NT_STATUS_IS_OK(status) &&
	     !NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
		composite_error(state->ctx, status);
		return;
	}

	for (i = 0; i < user_list->out.count; ++i) {
		DEBUG(5, ("Appending user '%s'\n", user_list->out.users[i].username));
		state->result = talloc_asprintf_append(state->result, "%s,",
					user_list->out.users[i].username);
	}

	/* If the status is OK, we're finished, there's no more users.
	 * So we'll trim off the trailing ',' and are done.*/
	if (NT_STATUS_IS_OK(status)) {
		int str_len = strlen(state->result);
		DEBUG(5, ("list_UserList_recv returned NT_STATUS_OK\n"));
		state->result[str_len - 1] = '\0';
		composite_done(state->ctx);
		return;
	}

	DEBUG(5, ("list_UserList_recv returned NT_STATUS_MORE_ENTRIES\n"));

	/* Otherwise there's more users to get, so call out to libnet and
	 * continue on this function here. */

	user_list->in.domain_name = state->domain_name;
	/* See comment above about the page size. 128 seems like a good default.
	 */
	user_list->in.page_size = 128;
	user_list->in.resume_index = user_list->out.resume_index;

	ctx = libnet_UserList_send(state->domain->libnet_ctx, state, user_list,
			NULL);

	composite_continue(state->ctx, ctx, cmd_list_users_recv_user_list,
			state);
}

NTSTATUS wb_cmd_list_users_recv(struct composite_context *ctx,
		TALLOC_CTX *mem_ctx, uint32_t *extra_data_len,
		char **extra_data)
{
	NTSTATUS status = composite_wait(ctx);

	DEBUG(5, ("wb_cmd_list_users_recv called\n"));

	if (NT_STATUS_IS_OK(status)) {
		struct cmd_list_users_state *state = talloc_get_type(
			ctx->private_data, struct cmd_list_users_state);

		*extra_data_len = strlen(state->result);
		*extra_data = talloc_steal(mem_ctx, state->result);
	}

	talloc_free(ctx);
	return status;
}