xref: /illumos-gate/usr/src/uts/common/smbsrv/smb_door.h (revision 3ba944265c4ae1fcf23ef758537c2e4f4feec16e)
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  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
24  */
25 
26 #ifndef _SMBSRV_SMB_DOOR_H
27 #define	_SMBSRV_SMB_DOOR_H
28 
29 #include <sys/door.h>
30 #include <smbsrv/wintypes.h>
31 #include <smbsrv/smb_xdr.h>
32 #include <smbsrv/smb_token.h>
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 #define	SMBD_DOOR_NAME			"/var/run/smbd_door"
39 
40 #define	SMB_DOOR_CALL_RETRIES		3
41 
42 /*
43  * Opcodes for smbd door.
44  *
45  * SMB_DR_NULL is the equivalent of the NULL RPC.  It ensures that an
46  * opcode of zero is not misinterpreted as an operational door call
47  * and it is available as a test interface.
48  *
49  * SMB_DR_ASYNC_RESPONSE delivers the response part of an asynchronous
50  * request and must be processed as a synchronous request.
51  *
52  * See also: smb_doorhdr_opname()
53  */
54 typedef enum smb_dopcode {
55 	SMB_DR_NULL = 0,
56 	SMB_DR_ASYNC_RESPONSE,
57 	SMB_DR_USER_AUTH_LOGON,
58 	SMB_DR_USER_NONAUTH_LOGON,
59 	SMB_DR_USER_AUTH_LOGOFF,
60 	SMB_DR_LOOKUP_SID,
61 	SMB_DR_LOOKUP_NAME,
62 	SMB_DR_JOIN,
63 	SMB_DR_GET_DCINFO,
64 	SMB_DR_VSS_GET_COUNT,
65 	SMB_DR_VSS_GET_SNAPSHOTS,
66 	SMB_DR_VSS_MAP_GMTTOKEN,
67 	SMB_DR_ADS_FIND_HOST,
68 	SMB_DR_QUOTA_QUERY,
69 	SMB_DR_QUOTA_SET,
70 	SMB_DR_DFS_GET_REFERRALS,
71 	SMB_DR_SHR_HOSTACCESS,
72 	SMB_DR_SHR_EXEC,
73 	SMB_DR_NOTIFY_DC_CHANGED
74 } smb_dopcode_t;
75 
76 struct smb_event;
77 
78 typedef struct smb_doorarg {
79 	smb_doorhdr_t		da_hdr;
80 	door_arg_t		da_arg;
81 	xdrproc_t		da_req_xdr;
82 	xdrproc_t		da_rsp_xdr;
83 	void			*da_req_data;
84 	void			*da_rsp_data;
85 	smb_dopcode_t		da_opcode;
86 	const char		*da_opname;
87 	struct smb_event	*da_event;
88 	uint32_t		da_flags;
89 } smb_doorarg_t;
90 
91 /*
92  * Door call return codes.
93  */
94 #define	SMB_DOP_SUCCESS			0
95 #define	SMB_DOP_NOT_CALLED		1
96 #define	SMB_DOP_DECODE_ERROR		2
97 #define	SMB_DOP_ENCODE_ERROR		3
98 #define	SMB_DOP_EMPTYBUF		4
99 
100 #if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
101 char *smb_common_encode(void *, xdrproc_t, size_t *);
102 int smb_common_decode(char *, size_t, xdrproc_t, void *);
103 char *smb_string_encode(char *, size_t *);
104 int smb_string_decode(smb_string_t *, char *, size_t);
105 #endif /* !_KERNEL */
106 
107 /* libfksmbsrv "kdoor" callback to smbd-d */
108 typedef int fksmb_kdoor_disp_func_t(smb_doorarg_t *);
109 
110 /* libfksmbsrv "opipe" callback to smbd-d */
111 typedef int fksmb_opipe_disp_func_t(door_arg_t *);
112 
113 /*
114  * Legacy door interface
115  */
116 #define	SMB_SHARE_DNAME		"/var/run/smb_share_door"
117 #define	SMB_SHARE_DSIZE		(65 * 1024)
118 
119 /*
120  * door operations
121  */
122 #define	SMB_SHROP_NUM_SHARES		1
123 #define	SMB_SHROP_DELETE		2
124 #define	SMB_SHROP_RENAME		3
125 #define	SMB_SHROP_ADD			4
126 #define	SMB_SHROP_MODIFY		5
127 #define	SMB_SHROP_LIST			6
128 
129 /*
130  * Door server status
131  *
132  * SMB_SHARE_DERROR is returned by the door server if there is problem
133  * with marshalling/unmarshalling. Otherwise, SMB_SHARE_DSUCCESS is
134  * returned.
135  *
136  */
137 #define	SMB_SHARE_DSUCCESS		0
138 #define	SMB_SHARE_DERROR		-1
139 
140 typedef struct smb_dr_ctx {
141 	char *ptr;
142 	char *start_ptr;
143 	char *end_ptr;
144 	int status;
145 } smb_dr_ctx_t;
146 
147 smb_dr_ctx_t *smb_dr_decode_start(char *, int);
148 int smb_dr_decode_finish(smb_dr_ctx_t *);
149 
150 smb_dr_ctx_t *smb_dr_encode_start(char *, int);
151 int smb_dr_encode_finish(smb_dr_ctx_t *, unsigned int *);
152 
153 int32_t smb_dr_get_int32(smb_dr_ctx_t *);
154 DWORD smb_dr_get_dword(smb_dr_ctx_t *);
155 uint32_t smb_dr_get_uint32(smb_dr_ctx_t *);
156 int64_t smb_dr_get_int64(smb_dr_ctx_t *);
157 uint64_t smb_dr_get_uint64(smb_dr_ctx_t *);
158 unsigned short smb_dr_get_ushort(smb_dr_ctx_t *);
159 
160 void smb_dr_put_int32(smb_dr_ctx_t *, int32_t);
161 void smb_dr_put_dword(smb_dr_ctx_t *, DWORD);
162 void smb_dr_put_uint32(smb_dr_ctx_t *, uint32_t);
163 void smb_dr_put_int64(smb_dr_ctx_t *, int64_t);
164 void smb_dr_put_uint64(smb_dr_ctx_t *, uint64_t);
165 void smb_dr_put_ushort(smb_dr_ctx_t *, unsigned short);
166 
167 char *smb_dr_get_string(smb_dr_ctx_t *);
168 void smb_dr_put_string(smb_dr_ctx_t *, const char *);
169 void smb_dr_free_string(char *);
170 
171 void smb_dr_put_word(smb_dr_ctx_t *, WORD);
172 WORD smb_dr_get_word(smb_dr_ctx_t *);
173 
174 void smb_dr_put_BYTE(smb_dr_ctx_t *, BYTE);
175 BYTE smb_dr_get_BYTE(smb_dr_ctx_t *);
176 
177 void smb_dr_put_buf(smb_dr_ctx_t *, unsigned char *, int);
178 int smb_dr_get_buf(smb_dr_ctx_t *, unsigned char *, int);
179 
180 void smb_dr_get_share(smb_dr_ctx_t *, smb_share_t *);
181 void smb_dr_put_share(smb_dr_ctx_t *, smb_share_t *);
182 
183 void smb_share_door_clnt_init(void);
184 void smb_share_door_clnt_fini(void);
185 
186 #ifdef __cplusplus
187 }
188 #endif
189 
190 #endif	/* _SMBSRV_SMB_DOOR_H */
191