1 /* $NetBSD: linux32_socketcall.c,v 1.7 2008/11/19 18:36:04 ad 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 1.7 2008/11/19 18:36:04 ad 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) { #fn, sizeof (struct emul##_##fn##_args), \ 60 (int (*)(struct lwp *, const void *, register_t *))emul##_##fn } 61 62 static 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 89 int 90 linux32_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