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      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
     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
    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
    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