1 /* $NetBSD: linux32_socketcall.c,v 1.6 2007/12/20 23:02:58 dsl 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 1.6 2007/12/20 23:02:58 dsl Exp $");
35
36 #include "opt_ktrace.h"
37 #include <sys/types.h>
38 #include <sys/param.h>
39 #include <sys/time.h>
40 #include <sys/proc.h>
41 #include <sys/ucred.h>
42 #include <sys/ktrace.h>
43
44 #include <compat/netbsd32/netbsd32.h>
45 #include <compat/netbsd32/netbsd32_syscallargs.h>
46
47 #include <compat/linux/common/linux_types.h>
48 #include <compat/linux/common/linux_signal.h>
49 #include <compat/linux/linux_syscallargs.h>
50
51 #include <compat/linux32/common/linux32_types.h>
52 #include <compat/linux32/common/linux32_signal.h>
53 #include <compat/linux32/common/linux32_machdep.h>
54 #include <compat/linux32/common/linux32_sysctl.h>
55 #include <compat/linux32/common/linux32_socketcall.h>
56 #include <compat/linux32/linux32_syscallargs.h>
57
58 #define sc(emul, fn) { #fn, sizeof (struct emul##_##fn##_args), \
59 (int (*)(struct lwp *, const void *, register_t *))emul##_##fn }
60
61 static const struct {
62 const char *name;
63 int argsize;
64 int (*syscall)(struct lwp *, const void *, register_t *);
65 } linux32_socketcall[LINUX32_MAX_SOCKETCALL+1] = {
66 {"invalid", -1, NULL},
67 sc(linux32_sys, socket),
68 sc(linux32_sys, bind),
69 sc(linux32_sys, connect),
70 sc(netbsd32, listen),
71 sc(linux32_sys, accept),
72 sc(linux32_sys, getsockname),
73 sc(linux32_sys, getpeername),
74 sc(linux32_sys, socketpair),
75 sc(linux32_sys, send),
76 sc(linux32_sys, recv),
77 sc(linux32_sys, sendto),
78 sc(linux32_sys, recvfrom),
79 sc(netbsd32, shutdown),
80 sc(linux32_sys, setsockopt),
81 sc(linux32_sys, getsockopt),
82 sc(linux32_sys, sendmsg),
83 sc(linux32_sys, recvmsg),
84 };
85 #undef sc
86
87
88 int
89 linux32_sys_socketcall(struct lwp *l, const struct linux32_sys_socketcall_args *uap, register_t *retval)
90 {
91 /* {
92 syscallarg(int) what;
93 syscallarg(netbsd32_voidp) args;
94 } */
95 union linux32_socketcall_args ua;
96 int error;
97
98 if (SCARG(uap, what) < 0 || SCARG(uap, what) > LINUX32_MAX_SOCKETCALL)
99 return ENOSYS;
100
101 if ((error = copyin(SCARG_P32(uap, args), &ua,
102 linux32_socketcall[SCARG(uap, what)].argsize)) != 0)
103 return error;
104
105 /* Trace the socket-call arguments as 'GIO' on fd -1 */
106 ktrkuser(linux32_socketcall[SCARG(uap, what)].name, &ua,
107 linux32_socketcall[SCARG(uap, what)].argsize);
108
109 return linux32_socketcall[SCARG(uap, what)].syscall(l, &ua, retval);
110 }
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