svr4_ioctl.c revision 89319
1105197Ssam/* 2105197Ssam * Copyright (c) 1998 Mark Newton 3105197Ssam * Copyright (c) 1994 Christos Zoulas 4139823Simp * All rights reserved. 5105197Ssam * 6105197Ssam * Redistribution and use in source and binary forms, with or without 7105197Ssam * modification, are permitted provided that the following conditions 8105197Ssam * are met: 9105197Ssam * 1. Redistributions of source code must retain the above copyright 10105197Ssam * notice, this list of conditions and the following disclaimer. 11105197Ssam * 2. Redistributions in binary form must reproduce the above copyright 12105197Ssam * notice, this list of conditions and the following disclaimer in the 13105197Ssam * documentation and/or other materials provided with the distribution. 14105197Ssam * 3. The name of the author may not be used to endorse or promote products 15105197Ssam * derived from this software without specific prior written permission 16105197Ssam * 17105197Ssam * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18105197Ssam * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19105197Ssam * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20105197Ssam * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21105197Ssam * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22105197Ssam * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23105197Ssam * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24105197Ssam * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25105197Ssam * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26105197Ssam * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27105197Ssam * 28105197Ssam * $FreeBSD: head/sys/compat/svr4/svr4_ioctl.c 89319 2002-01-14 00:13:45Z alfred $ 29105197Ssam */ 30105197Ssam 31105197Ssam#include <sys/param.h> 32105197Ssam#include <sys/proc.h> 33105197Ssam#include <sys/file.h> 34105197Ssam#include <sys/filedesc.h> 35105197Ssam#include <sys/fcntl.h> 36105197Ssam#include <sys/socket.h> 37105197Ssam#include <sys/socketvar.h> 38105197Ssam#include <sys/systm.h> 39105197Ssam 40105197Ssam#include <compat/svr4/svr4.h> 41105197Ssam#include <compat/svr4/svr4_types.h> 42105197Ssam#include <compat/svr4/svr4_util.h> 43105197Ssam#include <compat/svr4/svr4_signal.h> 44253081Sae#include <compat/svr4/svr4_proto.h> 45105197Ssam#include <compat/svr4/svr4_stropts.h> 46253081Sae#include <compat/svr4/svr4_ioctl.h> 47253081Sae#include <compat/svr4/svr4_termios.h> 48253081Sae#include <compat/svr4/svr4_ttold.h> 49253081Sae#include <compat/svr4/svr4_filio.h> 50253081Sae#include <compat/svr4/svr4_sockio.h> 51253081Sae 52253081Sae#ifdef DEBUG_SVR4 53253081Saestatic void svr4_decode_cmd __P((u_long, char *, char *, int *, int *)); 54253081Sae/* 55253081Sae * Decode an ioctl command symbolically 56253081Sae */ 57253081Saestatic void 58253081Saesvr4_decode_cmd(cmd, dir, c, num, argsiz) 59253081Sae u_long cmd; 60253081Sae char *dir, *c; 61253081Sae int *num, *argsiz; 62253081Sae{ 63253081Sae if (cmd & SVR4_IOC_VOID) 64105197Ssam *dir++ = 'V'; 65105197Ssam if (cmd & SVR4_IOC_IN) 66105197Ssam *dir++ = 'R'; 67195699Srwatson if (cmd & SVR4_IOC_OUT) 68207369Sbz *dir++ = 'W'; 69207369Sbz *dir = '\0'; 70252028Sae if (cmd & SVR4_IOC_INOUT) 71252028Sae *argsiz = (cmd >> 16) & 0xff; 72195727Srwatson else 73195727Srwatson *argsiz = -1; 74105197Ssam 75105197Ssam *c = (cmd >> 8) & 0xff; 76 *num = cmd & 0xff; 77} 78#endif 79 80int 81svr4_sys_ioctl(td, uap) 82 register struct thread *td; 83 struct svr4_sys_ioctl_args *uap; 84{ 85 int *retval; 86 struct file *fp; 87 u_long cmd; 88 int (*fun) __P((struct file *, struct thread *, register_t *, 89 int, u_long, caddr_t)); 90 int error; 91#ifdef DEBUG_SVR4 92 char dir[4]; 93 char c; 94 int num; 95 int argsiz; 96 97 svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz); 98 99 DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, com), SCARG(uap, fd), 100 dir, c, num, argsiz, SCARG(uap, data))); 101#endif 102 retval = td->td_retval; 103 cmd = SCARG(uap, com); 104 105 if ((error = fget(td, uap->fd, &fp)) != 0) 106 return (error); 107 108 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 109 fdrop(fp, td); 110 return EBADF; 111 } 112 113#if defined(DEBUG_SVR4) 114 if (fp->f_type == DTYPE_SOCKET) { 115 struct socket *so = (struct socket *)fp->f_data; 116 DPRINTF(("<<< IN: so_state = 0x%x\n", so->so_state)); 117 } 118#endif 119 120 switch (cmd & 0xff00) { 121 case SVR4_tIOC: 122 DPRINTF(("ttold\n")); 123 fun = svr4_ttold_ioctl; 124 break; 125 126 case SVR4_TIOC: 127 DPRINTF(("term\n")); 128 fun = svr4_term_ioctl; 129 break; 130 131 case SVR4_STR: 132 DPRINTF(("stream\n")); 133 fun = svr4_stream_ioctl; 134 break; 135 136 case SVR4_FIOC: 137 DPRINTF(("file\n")); 138 fun = svr4_fil_ioctl; 139 break; 140 141 case SVR4_SIOC: 142 DPRINTF(("socket\n")); 143 fun = svr4_sock_ioctl; 144 break; 145 146 case SVR4_XIOC: 147 /* We do not support those */ 148 fdrop(fp, td); 149 return EINVAL; 150 151 default: 152 fdrop(fp, td); 153 DPRINTF(("Unimplemented ioctl %lx\n", cmd)); 154 return 0; /* XXX: really ENOSYS */ 155 } 156#if defined(DEBUG_SVR4) 157 if (fp->f_type == DTYPE_SOCKET) { 158 struct socket *so; 159 160 so = (struct socket *)fp->f_data; 161 DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state)); 162 } 163#endif 164 error = (*fun)(fp, td, retval, SCARG(uap, fd), cmd, SCARG(uap, data)); 165 fdrop(fp, td); 166 return (error); 167} 168