1 /*        $NetBSD: compat_50_mod.c,v 1.4 2021/12/10 20:36:03 andvar Exp $       */
2 
3 /*-
4  * Copyright (c) 2018 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software developed for The NetBSD Foundation
8  * by Paul Goyette
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Linkage for the compat module: spaghetti.
34  */
35 
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: compat_50_mod.c,v 1.4 2021/12/10 20:36:03 andvar Exp $");
38 
39 #if defined(_KERNEL_OPT)
40 #include "opt_compat_netbsd.h"
41 #endif
42 
43 #include <sys/systm.h>
44 #include <sys/module.h>
45 #include <sys/sysctl.h>
46 #include <sys/syscall.h>
47 #include <sys/syscallvar.h>
48 #include <sys/syscallargs.h>
49 
50 #include <compat/sys/clockctl.h>
51 
52 #include <compat/common/compat_util.h>
53 #include <compat/common/compat_mod.h>
54 #include <compat/common/if_spppsubr50.h>
55 
56 #include <dev/wscons/wsevent_50.h>
57 
58 #include <fs/puffs/puffs_sys.h>
59 
60 int
compat_50_init(void)61 compat_50_init(void)
62 {
63           int error = 0;
64 
65           error = kern_50_init();
66           if (error != 0)
67                     return error;
68 
69           error = kern_time_50_init();
70           if (error != 0)
71                     goto err1;
72 
73           error = kern_select_50_init();
74           if (error != 0)
75                     goto err2;
76 
77           error = vfs_syscalls_50_init();
78           if (error != 0)
79                     goto err3;
80 
81           uvm_50_init();
82           uipc_syscalls_50_init();
83           clockctl_50_init();
84           if_spppsubr_50_init();
85           puffs_50_init();
86           wsevent_50_init();
87           vnd_50_init();
88           rndpseudo_50_init();
89           rtsock_50_init();
90           kern_uipc_socket_50_init();
91 
92           return error;
93 
94 /* If an error occurred, undo all previous set-up before returning */
95 
96  err3:
97           kern_select_50_fini();
98  err2:
99           kern_time_50_fini();
100  err1:
101           kern_50_fini();
102 
103           return error;
104 }
105 
106 int
compat_50_fini(void)107 compat_50_fini(void)
108 {
109           int error = 0;
110 
111           kern_uipc_socket_50_fini();
112           rtsock_50_fini();
113           rndpseudo_50_fini();
114           vnd_50_fini();
115           wsevent_50_fini();
116           puffs_50_fini();
117           if_spppsubr_50_fini();
118           clockctl_50_fini();
119           uipc_syscalls_50_fini();
120           uvm_50_fini();
121 
122           error = vfs_syscalls_50_fini();
123           if (error != 0)
124                     goto err1;
125 
126           error = kern_select_50_fini();
127           if (error != 0)
128                     goto err2;
129 
130           error = kern_time_50_fini();
131           if (error != 0)
132                     goto err3;
133 
134           error = kern_50_fini();
135           if (error != 0)
136                     goto err4;
137 
138           return error;
139 
140 /* If an error occurred while removing something, restore everything! */
141  err4:
142           kern_time_50_init();
143  err3:
144           kern_select_50_init();
145  err2:
146           vfs_syscalls_50_init();
147  err1:
148           uvm_50_init();
149           uipc_syscalls_50_init();
150           clockctl_50_init();
151           if_spppsubr_50_init();
152           puffs_50_init();
153           wsevent_50_init();
154           vnd_50_init();
155           rndpseudo_50_init();
156           rtsock_50_init();
157           kern_uipc_socket_50_init();
158 
159           return error;
160 }
161 
162 MODULE(MODULE_CLASS_EXEC, compat_50, "compat_60");
163 
164 static int
compat_50_modcmd(modcmd_t cmd,void * arg)165 compat_50_modcmd(modcmd_t cmd, void *arg)
166 {
167 
168           switch (cmd) {
169           case MODULE_CMD_INIT:
170                     return compat_50_init();
171           case MODULE_CMD_FINI:
172                     return compat_50_fini();
173           default:
174                     return ENOTTY;
175           }
176 }
177