xref: /freebsd-src/sys/contrib/openzfs/lib/libshare/os/freebsd/smb.c (revision d409305fa3838fb39b38c26fc085fb729b8766d5)
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 <strings.h>
31 #include <fcntl.h>
32 #include <sys/wait.h>
33 #include <unistd.h>
34 #include <dirent.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <libzfs.h>
38 #include <libshare.h>
39 #include "libshare_impl.h"
40 #include "smb.h"
41 
42 static sa_fstype_t *smb_fstype;
43 
44 /*
45  * Enables SMB sharing for the specified share.
46  */
47 static int
48 smb_enable_share(sa_share_impl_t impl_share)
49 {
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 	fprintf(stderr, "No SMB support in FreeBSD yet.\n");
60 	return (SA_NOT_SUPPORTED);
61 }
62 
63 /*
64  * Checks whether the specified SMB share options are syntactically correct.
65  */
66 static int
67 smb_validate_shareopts(const char *shareopts)
68 {
69 	fprintf(stderr, "No SMB support in FreeBSD yet.\n");
70 	return (SA_NOT_SUPPORTED);
71 }
72 
73 /*
74  * Checks whether a share is currently active.
75  */
76 static boolean_t
77 smb_is_share_active(sa_share_impl_t impl_share)
78 {
79 	return (B_FALSE);
80 }
81 
82 /*
83  * Called to update a share's options. A share's options might be out of
84  * date if the share was loaded from disk and the "sharesmb" dataset
85  * property has changed in the meantime. This function also takes care
86  * of re-enabling the share if necessary.
87  */
88 static int
89 smb_update_shareopts(sa_share_impl_t impl_share, const char *shareopts)
90 {
91 	return (SA_OK);
92 }
93 
94 static int
95 smb_update_shares(void)
96 {
97 	/* Not implemented */
98 	return (0);
99 }
100 /*
101  * Clears a share's SMB options. Used by libshare to
102  * clean up shares that are about to be free()'d.
103  */
104 static void
105 smb_clear_shareopts(sa_share_impl_t impl_share)
106 {
107 	FSINFO(impl_share, smb_fstype)->shareopts = NULL;
108 }
109 
110 static const sa_share_ops_t smb_shareops = {
111 	.enable_share = smb_enable_share,
112 	.disable_share = smb_disable_share,
113 	.is_shared = smb_is_share_active,
114 
115 	.validate_shareopts = smb_validate_shareopts,
116 	.update_shareopts = smb_update_shareopts,
117 	.clear_shareopts = smb_clear_shareopts,
118 	.commit_shares = smb_update_shares,
119 };
120 
121 /*
122  * Initializes the SMB functionality of libshare.
123  */
124 void
125 libshare_smb_init(void)
126 {
127 	smb_fstype = register_fstype("smb", &smb_shareops);
128 }
129