1 /* $NetBSD: linux_socketcall.c,v 1.18 1998/10/04 00:02:44 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/kernel.h> 41 #include <sys/systm.h> 42 #include <sys/buf.h> 43 #include <sys/malloc.h> 44 #include <sys/ioctl.h> 45 #include <sys/tty.h> 46 #include <sys/file.h> 47 #include <sys/filedesc.h> 48 #include <sys/select.h> 49 #include <sys/socket.h> 50 #include <sys/socketvar.h> 51 #include <net/if.h> 52 #include <netinet/in.h> 53 #include <netinet/tcp.h> 54 #include <sys/mount.h> 55 #include <sys/proc.h> 56 #include <sys/vnode.h> 57 #include <sys/device.h> 58 59 #include <sys/syscallargs.h> 60 61 #include <compat/linux/common/linux_types.h> 62 #include <compat/linux/common/linux_util.h> 63 #include <compat/linux/common/linux_signal.h> 64 #include <compat/linux/common/linux_ioctl.h> 65 #include <compat/linux/common/linux_socket.h> 66 #include <compat/linux/common/linux_socketcall.h> 67 #include <compat/linux/common/linux_sockio.h> 68 69 #include <compat/linux/linux_syscallargs.h> 70 71 /* Used on: arm, i386, m68k, mips, ppc, sparc, sparc64 */ 72 /* Not used on: alpha */ 73 74 /* 75 * This file contains the linux_socketcall() multiplexer. Arguments 76 * for the various socket calls are on the user stack. A pointer 77 * to them is the only thing that is passed. We copyin the arguments 78 * here so the individual functions can assume they are normal syscalls. 79 */ 80 81 /* The sizes of the arguments. Used for copyin. */ 82 int linux_socketcall_argsize[] = { 83 -1, 84 sizeof(struct linux_sys_socket_args), /* 1 */ 85 sizeof(struct linux_sys_bind_args), 86 sizeof(struct linux_sys_connect_args), 87 sizeof(struct linux_sys_listen_args), 88 sizeof(struct linux_sys_accept_args), /* 5 */ 89 sizeof(struct linux_sys_getsockname_args), 90 sizeof(struct linux_sys_getpeername_args), 91 sizeof(struct linux_sys_socketpair_args), 92 sizeof(struct linux_sys_send_args), 93 sizeof(struct linux_sys_recv_args), /* 10 */ 94 sizeof(struct linux_sys_sendto_args), 95 sizeof(struct linux_sys_recvfrom_args), 96 sizeof(struct linux_sys_shutdown_args), 97 sizeof(struct linux_sys_setsockopt_args), 98 sizeof(struct linux_sys_getsockopt_args), /* 15 */ 99 sizeof(struct linux_sys_sendmsg_args), 100 sizeof(struct linux_sys_recvmsg_args), /* 17 */ 101 }; 102 103 /* 104 * Entry point to all Linux socket calls. Just check which call to 105 * make and take appropriate action. 106 */ 107 int 108 linux_sys_socketcall(p, v, retval) 109 struct proc *p; 110 void *v; 111 register_t *retval; 112 { 113 struct linux_sys_socketcall_args /* { 114 syscallarg(int) what; 115 syscallarg(void *) args; 116 } */ *uap = v; 117 struct linux_socketcall_dummy_args lda; 118 int error; 119 120 if (SCARG(uap, what) > LINUX_MAX_SOCKETCALL) 121 return ENOSYS; 122 123 if ((error = copyin((caddr_t) SCARG(uap, args), (caddr_t) &lda, 124 linux_socketcall_argsize[SCARG(uap, what)]))) 125 return error; 126 127 switch (SCARG(uap, what)) { 128 case LINUX_SYS_socket: 129 return linux_sys_socket(p, (void *)&lda, retval); 130 case LINUX_SYS_bind: 131 return sys_bind(p, (void *)&lda, retval); 132 case LINUX_SYS_connect: 133 return sys_connect(p, (void *)&lda, retval); 134 case LINUX_SYS_listen: 135 return sys_listen(p, (void *)&lda, retval); 136 case LINUX_SYS_accept: 137 return compat_43_sys_accept(p, (void *)&lda, retval); 138 case LINUX_SYS_getsockname: 139 return compat_43_sys_getsockname(p, (void *)&lda, retval); 140 case LINUX_SYS_getpeername: 141 return compat_43_sys_getpeername(p, (void *)&lda, retval); 142 case LINUX_SYS_socketpair: 143 return linux_sys_socketpair(p, (void *)&lda, retval); 144 case LINUX_SYS_send: 145 return compat_43_sys_send(p, (void *)&lda, retval); 146 case LINUX_SYS_recv: 147 return compat_43_sys_recv(p, (void *)&lda, retval); 148 case LINUX_SYS_sendto: 149 return linux_sys_sendto(p, (void *)&lda, retval); 150 case LINUX_SYS_recvfrom: 151 return linux_sys_recvfrom(p, (void *)&lda, retval); 152 case LINUX_SYS_shutdown: 153 return sys_shutdown(p, (void *)&lda, retval); 154 case LINUX_SYS_setsockopt: 155 return linux_sys_setsockopt(p, (void *)&lda, retval); 156 case LINUX_SYS_getsockopt: 157 return linux_sys_getsockopt(p, (void *)&lda, retval); 158 case LINUX_SYS_sendmsg: 159 return sys_sendmsg(p, (void *)&lda, retval); 160 case LINUX_SYS_recvmsg: 161 return sys_recvmsg(p, (void *)&lda, retval); 162 default: 163 return ENOSYS; 164 } 165 } 166