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linux_socketcall.c revision 1.19.20.3
      1  1.19.20.3   nathanw /*	$NetBSD: linux_socketcall.c,v 1.19.20.3 2001/11/14 19:13:14 nathanw Exp $	*/
      2       1.16       erh 
      3       1.16       erh /*-
      4       1.18      fvdl  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
      5       1.16       erh  * All rights reserved.
      6       1.16       erh  *
      7       1.16       erh  * This code is derived from software contributed to The NetBSD Foundation
      8       1.18      fvdl  * by Frank van der Linden and Eric Haszlakiewicz.
      9       1.16       erh  *
     10       1.16       erh  * Redistribution and use in source and binary forms, with or without
     11       1.16       erh  * modification, are permitted provided that the following conditions
     12       1.16       erh  * are met:
     13       1.16       erh  * 1. Redistributions of source code must retain the above copyright
     14       1.16       erh  *    notice, this list of conditions and the following disclaimer.
     15       1.16       erh  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.16       erh  *    notice, this list of conditions and the following disclaimer in the
     17       1.16       erh  *    documentation and/or other materials provided with the distribution.
     18       1.16       erh  * 3. All advertising materials mentioning features or use of this software
     19       1.16       erh  *    must display the following acknowledgement:
     20       1.16       erh  *	This product includes software developed by the NetBSD
     21       1.16       erh  *	Foundation, Inc. and its contributors.
     22       1.16       erh  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23       1.16       erh  *    contributors may be used to endorse or promote products derived
     24       1.16       erh  *    from this software without specific prior written permission.
     25       1.16       erh  *
     26       1.16       erh  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27       1.16       erh  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28       1.16       erh  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29       1.16       erh  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30       1.16       erh  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31       1.16       erh  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32       1.16       erh  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33       1.16       erh  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34       1.16       erh  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35       1.16       erh  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36       1.16       erh  * POSSIBILITY OF SUCH DAMAGE.
     37        1.1      fvdl  */
     38  1.19.20.3   nathanw 
     39  1.19.20.3   nathanw #include <sys/cdefs.h>
     40  1.19.20.3   nathanw __KERNEL_RCSID(0, "$NetBSD: linux_socketcall.c,v 1.19.20.3 2001/11/14 19:13:14 nathanw Exp $");
     41        1.1      fvdl 
     42        1.1      fvdl #include <sys/param.h>
     43        1.1      fvdl #include <sys/kernel.h>
     44        1.1      fvdl #include <sys/systm.h>
     45        1.1      fvdl #include <sys/buf.h>
     46        1.1      fvdl #include <sys/malloc.h>
     47        1.1      fvdl #include <sys/ioctl.h>
     48        1.1      fvdl #include <sys/tty.h>
     49        1.1      fvdl #include <sys/file.h>
     50        1.1      fvdl #include <sys/filedesc.h>
     51        1.1      fvdl #include <sys/select.h>
     52        1.1      fvdl #include <sys/socket.h>
     53        1.1      fvdl #include <sys/socketvar.h>
     54        1.1      fvdl #include <net/if.h>
     55        1.1      fvdl #include <netinet/in.h>
     56        1.7   mycroft #include <netinet/tcp.h>
     57        1.1      fvdl #include <sys/mount.h>
     58        1.1      fvdl #include <sys/proc.h>
     59        1.1      fvdl #include <sys/vnode.h>
     60        1.1      fvdl #include <sys/device.h>
     61        1.1      fvdl 
     62        1.1      fvdl #include <sys/syscallargs.h>
     63        1.1      fvdl 
     64       1.17  christos #include <compat/linux/common/linux_types.h>
     65       1.17  christos #include <compat/linux/common/linux_util.h>
     66       1.17  christos #include <compat/linux/common/linux_signal.h>
     67       1.17  christos #include <compat/linux/common/linux_ioctl.h>
     68       1.17  christos #include <compat/linux/common/linux_socket.h>
     69       1.17  christos #include <compat/linux/common/linux_socketcall.h>
     70       1.17  christos #include <compat/linux/common/linux_sockio.h>
     71       1.17  christos 
     72        1.1      fvdl #include <compat/linux/linux_syscallargs.h>
     73        1.1      fvdl 
     74       1.16       erh /* Used on: arm, i386, m68k, mips, ppc, sparc, sparc64 */
     75       1.16       erh /* Not used on: alpha */
     76        1.1      fvdl 
     77        1.1      fvdl /*
     78       1.16       erh  * This file contains the linux_socketcall() multiplexer.  Arguments
     79       1.16       erh  * for the various socket calls are on the user stack. A pointer
     80       1.16       erh  * to them is the only thing that is passed.  We copyin the arguments
     81       1.16       erh  * here so the individual functions can assume they are normal syscalls.
     82       1.16       erh  */
     83       1.16       erh 
     84       1.16       erh /* The sizes of the arguments.  Used for copyin. */
     85  1.19.20.2   nathanw static const int linux_socketcall_argsize[LINUX_MAX_SOCKETCALL+1] = {
     86       1.16       erh 	-1,
     87       1.16       erh 	sizeof(struct linux_sys_socket_args),		/* 1 */
     88       1.16       erh 	sizeof(struct linux_sys_bind_args),
     89       1.16       erh 	sizeof(struct linux_sys_connect_args),
     90       1.16       erh 	sizeof(struct linux_sys_listen_args),
     91       1.16       erh 	sizeof(struct linux_sys_accept_args),		/* 5 */
     92       1.16       erh 	sizeof(struct linux_sys_getsockname_args),
     93       1.16       erh 	sizeof(struct linux_sys_getpeername_args),
     94       1.16       erh 	sizeof(struct linux_sys_socketpair_args),
     95       1.16       erh 	sizeof(struct linux_sys_send_args),
     96       1.16       erh 	sizeof(struct linux_sys_recv_args),		/* 10 */
     97       1.16       erh 	sizeof(struct linux_sys_sendto_args),
     98       1.16       erh 	sizeof(struct linux_sys_recvfrom_args),
     99       1.16       erh 	sizeof(struct linux_sys_shutdown_args),
    100       1.16       erh 	sizeof(struct linux_sys_setsockopt_args),
    101       1.16       erh 	sizeof(struct linux_sys_getsockopt_args),	/* 15 */
    102       1.16       erh 	sizeof(struct linux_sys_sendmsg_args),
    103       1.16       erh 	sizeof(struct linux_sys_recvmsg_args),		/* 17 */
    104       1.16       erh };
    105        1.1      fvdl 
    106        1.1      fvdl /*
    107        1.1      fvdl  * Entry point to all Linux socket calls. Just check which call to
    108        1.1      fvdl  * make and take appropriate action.
    109        1.1      fvdl  */
    110        1.1      fvdl int
    111  1.19.20.1   nathanw linux_sys_socketcall(l, v, retval)
    112  1.19.20.1   nathanw 	struct lwp *l;
    113       1.11   thorpej 	void *v;
    114       1.11   thorpej 	register_t *retval;
    115       1.11   thorpej {
    116       1.12   mycroft 	struct linux_sys_socketcall_args /* {
    117        1.1      fvdl 		syscallarg(int) what;
    118        1.1      fvdl 		syscallarg(void *) args;
    119       1.11   thorpej 	} */ *uap = v;
    120       1.16       erh 	struct linux_socketcall_dummy_args lda;
    121       1.16       erh 	int error;
    122       1.16       erh 
    123  1.19.20.2   nathanw 	if (SCARG(uap, what) < 0 || SCARG(uap, what) > LINUX_MAX_SOCKETCALL)
    124       1.16       erh 		return ENOSYS;
    125       1.16       erh 
    126       1.16       erh 	if ((error = copyin((caddr_t) SCARG(uap, args), (caddr_t) &lda,
    127       1.16       erh 	    linux_socketcall_argsize[SCARG(uap, what)])))
    128       1.16       erh 		return error;
    129       1.11   thorpej 
    130        1.1      fvdl 	switch (SCARG(uap, what)) {
    131        1.1      fvdl 	case LINUX_SYS_socket:
    132  1.19.20.1   nathanw 		return linux_sys_socket(l, (void *)&lda, retval);
    133        1.1      fvdl 	case LINUX_SYS_bind:
    134  1.19.20.2   nathanw 		return linux_sys_bind(l, (void *)&lda, retval);
    135        1.1      fvdl 	case LINUX_SYS_connect:
    136  1.19.20.1   nathanw 		return linux_sys_connect(l, (void *)&lda, retval);
    137        1.1      fvdl 	case LINUX_SYS_listen:
    138  1.19.20.1   nathanw 		return sys_listen(l, (void *)&lda, retval);
    139        1.1      fvdl 	case LINUX_SYS_accept:
    140  1.19.20.2   nathanw 		return linux_sys_accept(l, (void *)&lda, retval);
    141        1.1      fvdl 	case LINUX_SYS_getsockname:
    142  1.19.20.2   nathanw 		return linux_sys_getsockname(l, (void *)&lda, retval);
    143        1.1      fvdl 	case LINUX_SYS_getpeername:
    144  1.19.20.2   nathanw 		return linux_sys_getpeername(l, (void *)&lda, retval);
    145        1.1      fvdl 	case LINUX_SYS_socketpair:
    146  1.19.20.1   nathanw 		return linux_sys_socketpair(l, (void *)&lda, retval);
    147        1.1      fvdl 	case LINUX_SYS_send:
    148  1.19.20.2   nathanw 		return linux_sys_send(l, (void *)&lda, retval);
    149        1.1      fvdl 	case LINUX_SYS_recv:
    150  1.19.20.2   nathanw 		return linux_sys_recv(l, (void *)&lda, retval);
    151        1.1      fvdl 	case LINUX_SYS_sendto:
    152  1.19.20.1   nathanw 		return linux_sys_sendto(l, (void *)&lda, retval);
    153        1.1      fvdl 	case LINUX_SYS_recvfrom:
    154  1.19.20.1   nathanw 		return linux_sys_recvfrom(l, (void *)&lda, retval);
    155        1.1      fvdl 	case LINUX_SYS_shutdown:
    156  1.19.20.1   nathanw 		return sys_shutdown(l, (void *)&lda, retval);
    157        1.1      fvdl 	case LINUX_SYS_setsockopt:
    158  1.19.20.1   nathanw 		return linux_sys_setsockopt(l, (void *)&lda, retval);
    159        1.1      fvdl 	case LINUX_SYS_getsockopt:
    160  1.19.20.1   nathanw 		return linux_sys_getsockopt(l, (void *)&lda, retval);
    161       1.16       erh 	case LINUX_SYS_sendmsg:
    162  1.19.20.2   nathanw 		return linux_sys_sendmsg(l, (void *)&lda, retval);
    163       1.16       erh 	case LINUX_SYS_recvmsg:
    164  1.19.20.2   nathanw 		return linux_sys_recvmsg(l, (void *)&lda, retval);
    165        1.1      fvdl 	default:
    166        1.1      fvdl 		return ENOSYS;
    167        1.1      fvdl 	}
    168        1.1      fvdl }
    169