xref: /freebsd-src/sys/contrib/openzfs/lib/libshare/os/freebsd/smb.c (revision 4824e7fd18a1223177218d4aec1b3c6c5c4a444e)
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) 2020 by Delphix. All rights reserved.
24  */
25 
26 #include <time.h>
27 #include <stdlib.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include <fcntl.h>
31 #include <sys/wait.h>
32 #include <unistd.h>
33 #include <dirent.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <libzfs.h>
37 #include <libshare.h>
38 #include "libshare_impl.h"
39 #include "smb.h"
40 
41 static sa_fstype_t *smb_fstype;
42 
43 /*
44  * Enables SMB sharing for the specified share.
45  */
46 static int
47 smb_enable_share(sa_share_impl_t impl_share)
48 {
49 	(void) impl_share;
50 	fprintf(stderr, "No SMB support in FreeBSD yet.\n");
51 	return (SA_NOT_SUPPORTED);
52 }
53 /*
54  * Disables SMB sharing for the specified share.
55  */
56 static int
57 smb_disable_share(sa_share_impl_t impl_share)
58 {
59 	(void) impl_share;
60 	fprintf(stderr, "No SMB support in FreeBSD yet.\n");
61 	return (SA_NOT_SUPPORTED);
62 }
63 
64 /*
65  * Checks whether the specified SMB share options are syntactically correct.
66  */
67 static int
68 smb_validate_shareopts(const char *shareopts)
69 {
70 	(void) shareopts;
71 	fprintf(stderr, "No SMB support in FreeBSD yet.\n");
72 	return (SA_NOT_SUPPORTED);
73 }
74 
75 /*
76  * Checks whether a share is currently active.
77  */
78 static boolean_t
79 smb_is_share_active(sa_share_impl_t impl_share)
80 {
81 	(void) impl_share;
82 	return (B_FALSE);
83 }
84 
85 /*
86  * Called to update a share's options. A share's options might be out of
87  * date if the share was loaded from disk and the "sharesmb" dataset
88  * property has changed in the meantime. This function also takes care
89  * of re-enabling the share if necessary.
90  */
91 static int
92 smb_update_shareopts(sa_share_impl_t impl_share, const char *shareopts)
93 {
94 	(void) impl_share, (void) shareopts;
95 	return (SA_OK);
96 }
97 
98 static int
99 smb_update_shares(void)
100 {
101 	/* Not implemented */
102 	return (0);
103 }
104 /*
105  * Clears a share's SMB options. Used by libshare to
106  * clean up shares that are about to be free()'d.
107  */
108 static void
109 smb_clear_shareopts(sa_share_impl_t impl_share)
110 {
111 	FSINFO(impl_share, smb_fstype)->shareopts = NULL;
112 }
113 
114 static const sa_share_ops_t smb_shareops = {
115 	.enable_share = smb_enable_share,
116 	.disable_share = smb_disable_share,
117 	.is_shared = smb_is_share_active,
118 
119 	.validate_shareopts = smb_validate_shareopts,
120 	.update_shareopts = smb_update_shareopts,
121 	.clear_shareopts = smb_clear_shareopts,
122 	.commit_shares = smb_update_shares,
123 };
124 
125 /*
126  * Initializes the SMB functionality of libshare.
127  */
128 void
129 libshare_smb_init(void)
130 {
131 	smb_fstype = register_fstype("smb", &smb_shareops);
132 }
133