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compat_12_mod.c revision 1.1.2.2 
      1 /*	$NetBSD: compat_12_mod.c,v 1.1.2.2 2018/04/01 23:07:57 pgoyette 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_12_mod.c,v 1.1.2.2 2018/04/01 23:07:57 pgoyette Exp $");
     38 
     39 #include <sys/systm.h>
     40 #include <sys/module.h>
     41 #include <sys/sysctl.h>
     42 #include <sys/syscall.h>
     43 #include <sys/syscallvar.h>
     44 #include <sys/syscallargs.h>
     45 
     46 #include <compat/common/compat_util.h>
     47 #include <compat/common/compat_mod.h>
     48 
     49 int
     50 compat_12_init(void)
     51 {
     52 	int error;
     53 
     54 	error = kern_xxx_12_init();
     55 	if (error != 0)
     56 		return error;
     57 
     58 	error = vm_12_init();
     59 	if (error != 0) {
     60 		kern_xxx_12_fini();
     61 		return error;
     62 	}
     63 
     64 	error = vfs_syscalls_12_init();
     65 	if (error != 0) {
     66 		vm_12_fini();
     67 		kern_xxx_12_fini();
     68 		return error;
     69 	}
     70 
     71 	return 0;
     72 }
     73 
     74 int
     75 compat_12_fini(void)
     76 {
     77 	int error;
     78 
     79 	error = vfs_syscalls_12_fini();
     80 	if (error != 0)
     81 		return error;
     82 
     83 	error = vm_12_fini();
     84 	if (error != 0) {
     85 		vfs_syscalls_12_init();
     86 		return error;
     87 	}
     88 
     89 	error = kern_xxx_12_fini();
     90 	if (error != 0) {
     91 		vm_12_init();
     92 		vfs_syscalls_12_init();
     93 		return error;
     94 	}
     95 
     96 	return 0;
     97 }
     98 
     99 #ifdef _MODULE
    100 
    101 #define REQD_12_1	"compat_80,compat_70,compat_60,compat_50,"
    102 #define REQD_12_2	"compat_40,compat_30,compat_20,compat_16,"
    103 #define REQD_12_3	"compat_14,compat_13"
    104 
    105 MODULE(MODULE_CLASS_EXEC, compat_12, REQD_12_1 REQD_12_2 REQD_12_3);
    106 
    107 static int
    108 compat_12_modcmd(modcmd_t cmd, void *arg)
    109 {
    110 
    111 	switch (cmd) {
    112 	case MODULE_CMD_INIT:
    113 		return compat_12_init();
    114 	case MODULE_CMD_FINI:
    115 		return compat_12_init();
    116 	default:
    117 		return ENOTTY;
    118 	}
    119 }
    120 #endif
    121