xref: /illumos-gate/usr/src/lib/smbsrv/libmlsvc/common/dssetup_svc.c (revision 20a7641f9918de8574b8b3b47dbe35c4bfc78df1)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
25  */
26 
27 /*
28  * Active Directory Setup RPC interface used by Windows 2000.
29  */
30 
31 #include <synch.h>
32 #include <strings.h>
33 #include <stdlib.h>
34 #include <netdb.h>
35 
36 #include <libmlrpc/libmlrpc.h>
37 #include <smbsrv/libsmb.h>
38 #include <smbsrv/libmlsvc.h>
39 #include <smbsrv/ndl/dssetup.ndl>
40 #include <smbsrv/smbinfo.h>
41 #include <smbsrv/nmpipes.h>
42 
43 int dssetup_get_domain_info(ds_primary_domain_info_t *);
44 
45 static int dssetup_DsRoleGetPrimaryDomainInfo(void *, ndr_xa_t *);
46 static uint32_t dssetup_member_server(ds_primary_domain_info_t *, ndr_xa_t *);
47 static uint32_t dssetup_standalone_server(ds_primary_domain_info_t *,
48     ndr_xa_t *);
49 
50 static ndr_stub_table_t dssetup_stub_table[] = {
51 	{ dssetup_DsRoleGetPrimaryDomainInfo,
52 	    DSSETUP_OPNUM_DsRoleGetPrimaryDomainInfo },
53 	{0}
54 };
55 
56 static ndr_service_t dssetup_service = {
57 	"DSSETUP",			/* name */
58 	"Active Directory Setup",	/* desc */
59 	"\\lsarpc",			/* endpoint */
60 	PIPE_LSASS,			/* sec_addr_port */
61 	"3919286a-b10c-11d0-9ba8-00c04fd92ef5",	0,	/* abstract */
62 	NDR_TRANSFER_SYNTAX_UUID,		2,	/* transfer */
63 	0,				/* no bind_instance_size */
64 	0,				/* no bind_req() */
65 	0,				/* no unbind_and_close() */
66 	0,				/* use generic_call_stub() */
67 	&TYPEINFO(dssetup_interface),	/* interface ti */
68 	dssetup_stub_table		/* stub_table */
69 };
70 
71 static ds_primary_domain_info_t ds_info;
72 static mutex_t ds_info_mtx;
73 
74 /*
75  * dssetup_initialize
76  *
77  * This function registers the DSSETUP interface with the RPC runtime
78  * library. It must be called in order to use either the client side
79  * or the server side functions.
80  */
81 void
82 dssetup_initialize(void)
83 {
84 	dssetup_clear_domain_info();
85 	(void) ndr_svc_register(&dssetup_service);
86 }
87 
88 void
89 dssetup_clear_domain_info(void)
90 {
91 	(void) mutex_lock(&ds_info_mtx);
92 
93 	free(ds_info.nt_domain);
94 	free(ds_info.dns_domain);
95 	free(ds_info.forest);
96 	bzero(&ds_info, sizeof (ds_primary_domain_info_t));
97 
98 	(void) mutex_unlock(&ds_info_mtx);
99 }
100 
101 /*
102  * Request for machine role and primary domain information.
103  */
104 static int
105 dssetup_DsRoleGetPrimaryDomainInfo(void *arg, ndr_xa_t *mxa)
106 {
107 	dssetup_DsRoleGetPrimaryDomainInfo_t *param = arg;
108 	dssetup_GetPrimaryDomainInfo_t *info;
109 	ds_primary_domain_info_t *info1;
110 	uint32_t status;
111 	int security_mode;
112 
113 	info = NDR_MALLOC(mxa, sizeof (dssetup_GetPrimaryDomainInfo_t));
114 	if (info == NULL) {
115 		status = NT_STATUS_NO_MEMORY;
116 	} else if (param->level != DS_ROLE_BASIC_INFORMATION) {
117 		status = NT_STATUS_INVALID_LEVEL;
118 	} else {
119 		info->switch_value = param->level;
120 		info1 = &info->ru.info1;
121 
122 		security_mode = smb_config_get_secmode();
123 
124 		if (security_mode == SMB_SECMODE_DOMAIN)
125 			status = dssetup_member_server(info1, mxa);
126 		else
127 			status = dssetup_standalone_server(info1, mxa);
128 	}
129 
130 	if (status != NT_STATUS_SUCCESS) {
131 		bzero(param, sizeof (dssetup_DsRoleGetPrimaryDomainInfo_t));
132 		param->status = NT_SC_ERROR(status);
133 	} else {
134 		param->info = info;
135 		param->status = NT_STATUS_SUCCESS;
136 	}
137 
138 	return (NDR_DRC_OK);
139 }
140 
141 /*
142  * When the machine role is domain member:
143  * 	nt_domain must contain the NetBIOS domain name
144  * 	dns_domain must contain the DNS domain name (cannot be NULL)
145  * 	forest must contain the forest name (cannot be NULL)
146  *
147  * If DS_ROLE_PRIMARY_DOMAIN_GUID_PRESENT is set in flags, the domain_guid
148  * must contain the domain UUID.  Otherwise domain_guid is ignored.
149  */
150 static uint32_t
151 dssetup_member_server(ds_primary_domain_info_t *info, ndr_xa_t *mxa)
152 {
153 	char dns_domain[MAXHOSTNAMELEN];
154 	char nt_domain[MAXHOSTNAMELEN];
155 
156 	(void) mutex_lock(&ds_info_mtx);
157 
158 	if ((ds_info.flags & DS_ROLE_PRIMARY_DOMAIN_GUID_PRESENT) == 0) {
159 		/*
160 		 * If we don't have the domain GUID, try to get it from a
161 		 * domain controller. Otherwise, use local configuration.
162 		 */
163 		free(ds_info.nt_domain);
164 		free(ds_info.dns_domain);
165 		free(ds_info.forest);
166 		(void) dssetup_get_domain_info(&ds_info);
167 	}
168 
169 	if (ds_info.flags & DS_ROLE_PRIMARY_DOMAIN_GUID_PRESENT) {
170 		info->flags = DS_ROLE_PRIMARY_DOMAIN_GUID_PRESENT;
171 		info->nt_domain = NDR_STRDUP(mxa, (char *)ds_info.nt_domain);
172 		info->dns_domain = NDR_STRDUP(mxa, (char *)ds_info.dns_domain);
173 		info->forest = NDR_STRDUP(mxa, (char *)ds_info.forest);
174 		bcopy(&ds_info.domain_guid, &info->domain_guid,
175 		    sizeof (ndr_uuid_t));
176 	} else {
177 		if (smb_getdomainname(nt_domain, MAXHOSTNAMELEN) != 0) {
178 			(void) mutex_unlock(&ds_info_mtx);
179 			return (NT_STATUS_CANT_ACCESS_DOMAIN_INFO);
180 		}
181 
182 		if (smb_getfqdomainname(dns_domain, MAXHOSTNAMELEN) != 0) {
183 			(void) mutex_unlock(&ds_info_mtx);
184 			return (NT_STATUS_CANT_ACCESS_DOMAIN_INFO);
185 		}
186 
187 		(void) smb_strlwr(dns_domain);
188 
189 		info->flags = 0;
190 		info->nt_domain = NDR_STRDUP(mxa, nt_domain);
191 		info->dns_domain = NDR_STRDUP(mxa, dns_domain);
192 		info->forest = NDR_STRDUP(mxa, dns_domain);
193 		bzero(&info->domain_guid, sizeof (ndr_uuid_t));
194 	}
195 
196 	(void) mutex_unlock(&ds_info_mtx);
197 
198 	if (info->nt_domain == NULL ||
199 	    info->dns_domain == NULL ||
200 	    info->forest == NULL)
201 		return (NT_STATUS_NO_MEMORY);
202 
203 	info->role = DS_ROLE_MEMBER_SERVER;
204 	return (NT_STATUS_SUCCESS);
205 }
206 
207 /*
208  * When the machine role is standalone:
209  * 	nt_domain must contain the NetBIOS workgroup name
210  * 	dns_domain must be NULL
211  * 	forest must be NULL
212  *
213  * We don't maintain a domain GUID.  When DS_ROLE_PRIMARY_DOMAIN_GUID_PRESENT
214  * is not set in flags, domain_guid is ignored.
215  */
216 static uint32_t
217 dssetup_standalone_server(ds_primary_domain_info_t *info, ndr_xa_t *mxa)
218 {
219 	char nt_domain[MAXHOSTNAMELEN];
220 
221 	if (smb_getdomainname(nt_domain, MAXHOSTNAMELEN) != 0)
222 		return (NT_STATUS_CANT_ACCESS_DOMAIN_INFO);
223 
224 	info->nt_domain = NDR_STRDUP(mxa, nt_domain);
225 	if (info->nt_domain == NULL)
226 		return (NT_STATUS_NO_MEMORY);
227 
228 	info->role = DS_ROLE_STANDALONE_SERVER;
229 	info->flags = 0;
230 	info->dns_domain = NULL;
231 	info->forest = NULL;
232 	bzero(&info->domain_guid, sizeof (ndr_uuid_t));
233 	return (NT_STATUS_SUCCESS);
234 }
235