1 /* $NetBSD: netbsd32_compat_13.c,v 1.28 2021/01/19 03:20:13 simonb Exp $ */
2
3 /*
4 * Copyright (c) 1998, 2001 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_13.c,v 1.28 2021/01/19 03:20:13 simonb Exp $");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/module.h>
35 #include <sys/mount.h>
36 #include <sys/proc.h>
37 #include <sys/signal.h>
38 #include <sys/signalvar.h>
39 #include <sys/syscallargs.h>
40 #include <sys/syscallvar.h>
41
42 #include <compat/netbsd32/netbsd32.h>
43 #include <compat/netbsd32/netbsd32_syscall.h>
44 #include <compat/netbsd32/netbsd32_syscallargs.h>
45
46 #include <compat/sys/stat.h>
47 #include <compat/sys/signal.h>
48 #include <compat/sys/signalvar.h>
49
50 #include <compat/common/compat_sigaltstack.h>
51
52 int
compat_13_netbsd32_sigaltstack13(struct lwp * l,const struct compat_13_netbsd32_sigaltstack13_args * uap,register_t * retval)53 compat_13_netbsd32_sigaltstack13(struct lwp *l, const struct compat_13_netbsd32_sigaltstack13_args *uap, register_t *retval)
54 {
55 compat_sigaltstack(uap, netbsd32_sigaltstack13, SS_ONSTACK, SS_DISABLE);
56 }
57
58
59 int
compat_13_netbsd32_sigprocmask(struct lwp * l,const struct compat_13_netbsd32_sigprocmask_args * uap,register_t * retval)60 compat_13_netbsd32_sigprocmask(struct lwp *l, const struct compat_13_netbsd32_sigprocmask_args *uap, register_t *retval)
61 {
62 /* {
63 syscallarg(int) how;
64 syscallarg(int) mask;
65 } */
66 sigset13_t ness, oess;
67 sigset_t nbss, obss;
68 struct proc *p = l->l_proc;
69 int error;
70
71 ness = SCARG(uap, mask);
72 native_sigset13_to_sigset(&ness, &nbss);
73 mutex_enter(p->p_lock);
74 error = sigprocmask1(l, SCARG(uap, how), &nbss, &obss);
75 mutex_exit(p->p_lock);
76 if (error)
77 return error;
78 native_sigset_to_sigset13(&obss, &oess);
79 *retval = oess;
80 return 0;
81 }
82
83 int
compat_13_netbsd32_sigsuspend(struct lwp * l,const struct compat_13_netbsd32_sigsuspend_args * uap,register_t * retval)84 compat_13_netbsd32_sigsuspend(struct lwp *l, const struct compat_13_netbsd32_sigsuspend_args *uap, register_t *retval)
85 {
86 /* {
87 syscallarg(sigset13_t) mask;
88 } */
89 sigset13_t ess;
90 sigset_t bss;
91
92 ess = SCARG(uap, mask);
93 native_sigset13_to_sigset(&ess, &bss);
94 return sigsuspend1(l, &bss);
95 }
96
97 static struct syscall_package compat_netbsd32_13_syscalls[] = {
98 { NETBSD32_SYS_compat_13_netbsd32_sigaltstack13, 0,
99 (sy_call_t *)compat_13_netbsd32_sigaltstack13 },
100 { NETBSD32_SYS_compat_13_sigprocmask13, 0,
101 (sy_call_t *)compat_13_netbsd32_sigprocmask },
102 { NETBSD32_SYS_compat_13_sigsuspend13, 0,
103 (sy_call_t *)compat_13_netbsd32_sigsuspend },
104 { 0, 0, NULL }
105 };
106
107 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_13, "compat_13,compat_netbsd32_16");
108
109 static int
compat_netbsd32_13_modcmd(modcmd_t cmd,void * arg)110 compat_netbsd32_13_modcmd(modcmd_t cmd, void *arg)
111 {
112
113 switch (cmd) {
114 case MODULE_CMD_INIT:
115 netbsd32_machdep_md_13_init();
116 return syscall_establish(&emul_netbsd32,
117 compat_netbsd32_13_syscalls);
118
119 case MODULE_CMD_FINI:
120 netbsd32_machdep_md_13_fini();
121 return syscall_disestablish(&emul_netbsd32,
122 compat_netbsd32_13_syscalls);
123
124 default:
125 return ENOTTY;
126 }
127 }
128