1/* $NetBSD: linux32_socketcall.c,v 1.9 2014/06/21 10:23:07 maxv Exp $ */
2
3/*-
4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Emmanuel Dreyfus
17 * 4. The name of the author may not be used to endorse or promote
18 * products derived from this software without specific prior written
19 * permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33#include <sys/cdefs.h>
34__KERNEL_RCSID(0, "$NetBSD: linux32_socketcall.c,v 1.9 2014/06/21 10:23:07 maxv Exp $");
35
36#include <sys/types.h>
37#include <sys/param.h>
38#include <sys/time.h>
39#include <sys/proc.h>
40#include <sys/ucred.h>
41#include <sys/ktrace.h>
42
43#include <compat/netbsd32/netbsd32.h>
44#include <compat/netbsd32/netbsd32_syscallargs.h>
45
46#include <compat/linux/common/linux_types.h>
47#include <compat/linux/common/linux_signal.h>
48#include <compat/linux/common/linux_ipc.h>
49#include <compat/linux/common/linux_sem.h>
50#include <compat/linux/linux_syscallargs.h>
51
52#include <compat/linux32/common/linux32_types.h>
53#include <compat/linux32/common/linux32_signal.h>
54#include <compat/linux32/common/linux32_machdep.h>
55#include <compat/linux32/common/linux32_sysctl.h>
56#include <compat/linux32/common/linux32_socketcall.h>
57#include <compat/linux32/linux32_syscallargs.h>
58
59#define sc(emul, fn) { "linux32/" #fn, sizeof (struct emul##_##fn##_args), \
60 (int (*)(struct lwp *, const void *, register_t *))emul##_##fn }
61
62static const struct {
63 const char *name;
64 int argsize;
65 int (*syscall)(struct lwp *, const void *, register_t *);
66} linux32_socketcall[LINUX32_MAX_SOCKETCALL+1] = {
67 {"invalid", -1, NULL},
68 sc(linux32_sys, socket),
69 sc(linux32_sys, bind),
70 sc(linux32_sys, connect),
71 sc(netbsd32, listen),
72 sc(linux32_sys, accept),
73 sc(linux32_sys, getsockname),
74 sc(linux32_sys, getpeername),
75 sc(linux32_sys, socketpair),
76 sc(linux32_sys, send),
77 sc(linux32_sys, recv),
78 sc(linux32_sys, sendto),
79 sc(linux32_sys, recvfrom),
80 sc(netbsd32, shutdown),
81 sc(linux32_sys, setsockopt),
82 sc(linux32_sys, getsockopt),
83 sc(linux32_sys, sendmsg),
84 sc(linux32_sys, recvmsg),
85};
86#undef sc
87
88
89int
90linux32_sys_socketcall(struct lwp *l, const struct linux32_sys_socketcall_args *uap, register_t *retval)
91{
92 /* {
93 syscallarg(int) what;
94 syscallarg(netbsd32_voidp) args;
95 } */
96 union linux32_socketcall_args ua;
97 int error;
98
99 if (SCARG(uap, what) <= 0 || SCARG(uap, what) > LINUX32_MAX_SOCKETCALL)
100 return ENOSYS;
101
102 if ((error = copyin(SCARG_P32(uap, args), &ua,
103 linux32_socketcall[SCARG(uap, what)].argsize)) != 0)
104 return error;
105
106 /* Trace the socket-call arguments as 'GIO' on fd -1 */
107 ktrkuser(linux32_socketcall[SCARG(uap, what)].name, &ua,
108 linux32_socketcall[SCARG(uap, what)].argsize);
109
110 return linux32_socketcall[SCARG(uap, what)].syscall(l, &ua, retval);
111}
112