204 lines
6.9 KiB
C
204 lines
6.9 KiB
C
/* $NetBSD: linux_socketcall.c,v 1.24 2002/03/29 20:49:41 christos Exp $ */
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/*-
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* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank van der Linden and Eric Haszlakiewicz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: linux_socketcall.c,v 1.24 2002/03/29 20:49:41 christos Exp $");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/device.h>
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#include <sys/syscallargs.h>
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#include <compat/linux/common/linux_types.h>
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#include <compat/linux/common/linux_util.h>
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#include <compat/linux/common/linux_signal.h>
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#include <compat/linux/common/linux_ioctl.h>
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#include <compat/linux/common/linux_socket.h>
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#include <compat/linux/common/linux_socketcall.h>
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#include <compat/linux/common/linux_sockio.h>
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#include <compat/linux/linux_syscallargs.h>
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#undef DPRINTF
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#ifdef DEBUG_LINUX
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#define DPRINTF(a) uprintf a
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#else
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#define DPRINTF(a)
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#endif
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/* Used on: arm, i386, m68k, mips, ppc, sparc, sparc64 */
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/* Not used on: alpha */
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/*
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* This file contains the linux_socketcall() multiplexer. Arguments
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* for the various socket calls are on the user stack. A pointer
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* to them is the only thing that is passed. We copyin the arguments
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* here so the individual functions can assume they are normal syscalls.
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*/
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/* The sizes of the arguments. Used for copyin. */
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static const struct {
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char *name;
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int argsize;
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} linux_socketcall[LINUX_MAX_SOCKETCALL+1] = {
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{"invalid", -1}, /* 0 */
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{"socket", sizeof(struct linux_sys_socket_args)}, /* 1 */
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{"bind", sizeof(struct linux_sys_bind_args)}, /* 2 */
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{"connect", sizeof(struct linux_sys_connect_args)}, /* 3 */
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{"listen", sizeof(struct linux_sys_listen_args)}, /* 4 */
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{"accept", sizeof(struct linux_sys_accept_args)}, /* 5 */
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{"getsockname", sizeof(struct linux_sys_getsockname_args)}, /* 6 */
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{"getpeername", sizeof(struct linux_sys_getpeername_args)}, /* 7 */
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{"socketpair", sizeof(struct linux_sys_socketpair_args)}, /* 8 */
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{"send", sizeof(struct linux_sys_send_args)}, /* 9 */
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{"recv", sizeof(struct linux_sys_recv_args)}, /* 10 */
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{"sendto", sizeof(struct linux_sys_sendto_args)}, /* 11 */
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{"recvfrom", sizeof(struct linux_sys_recvfrom_args)}, /* 12 */
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{"shutdown", sizeof(struct linux_sys_shutdown_args)}, /* 13 */
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{"setsockopt", sizeof(struct linux_sys_setsockopt_args)}, /* 14 */
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{"getsockopt", sizeof(struct linux_sys_getsockopt_args)}, /* 15 */
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{"sendmsg", sizeof(struct linux_sys_sendmsg_args)}, /* 16 */
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{"recvmsg", sizeof(struct linux_sys_recvmsg_args)}, /* 17 */
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};
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/*
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* Entry point to all Linux socket calls. Just check which call to
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* make and take appropriate action.
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*/
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int
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linux_sys_socketcall(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct linux_sys_socketcall_args /* {
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syscallarg(int) what;
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syscallarg(void *) args;
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} */ *uap = v;
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struct linux_socketcall_dummy_args lda;
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int error;
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if (SCARG(uap, what) < 0 || SCARG(uap, what) > LINUX_MAX_SOCKETCALL)
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return ENOSYS;
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if ((error = copyin((caddr_t) SCARG(uap, args), (caddr_t) &lda,
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linux_socketcall[SCARG(uap, what)].argsize))) {
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DPRINTF(("copyin for %s failed %d\n",
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linux_socketcall[SCARG(uap, what)].name, error));
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return error;
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}
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switch (SCARG(uap, what)) {
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case LINUX_SYS_socket:
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error = linux_sys_socket(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_bind:
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error = linux_sys_bind(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_connect:
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error = linux_sys_connect(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_listen:
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error = sys_listen(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_accept:
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error = linux_sys_accept(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_getsockname:
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error = linux_sys_getsockname(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_getpeername:
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error = linux_sys_getpeername(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_socketpair:
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error = linux_sys_socketpair(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_send:
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error = linux_sys_send(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_recv:
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error = linux_sys_recv(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_sendto:
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error = linux_sys_sendto(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_recvfrom:
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error = linux_sys_recvfrom(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_shutdown:
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error = sys_shutdown(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_setsockopt:
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error = linux_sys_setsockopt(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_getsockopt:
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error = linux_sys_getsockopt(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_sendmsg:
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error = linux_sys_sendmsg(p, (void *)&lda, retval);
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break;
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case LINUX_SYS_recvmsg:
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error = linux_sys_recvmsg(p, (void *)&lda, retval);
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break;
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default:
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error = ENOSYS;
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break;
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}
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DPRINTF(("sys_%s() = %d\n", linux_socketcall[SCARG(uap, what)].name,
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error));
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return error;
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}
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