svr4_ioctl.c revision 54305
1/* 2 * Copyright (c) 1998 Mark Newton 3 * Copyright (c) 1994 Christos Zoulas 4 * 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. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/compat/svr4/svr4_ioctl.c 54305 1999-12-08 12:01:59Z newton $ 29 */ 30 31#include <sys/param.h> 32#include <sys/proc.h> 33#include <sys/file.h> 34#include <sys/filedesc.h> 35#include <sys/fcntl.h> 36#include <sys/socket.h> 37#include <sys/socketvar.h> 38#include <sys/systm.h> 39 40#include <svr4/svr4.h> 41#include <svr4/svr4_types.h> 42#include <svr4/svr4_util.h> 43#include <svr4/svr4_signal.h> 44#include <svr4/svr4_proto.h> 45#include <svr4/svr4_stropts.h> 46#include <svr4/svr4_ioctl.h> 47#include <svr4/svr4_termios.h> 48#include <svr4/svr4_ttold.h> 49#include <svr4/svr4_filio.h> 50#include <svr4/svr4_sockio.h> 51 52#ifdef DEBUG_SVR4 53static void svr4_decode_cmd __P((u_long, char *, char *, int *, int *)); 54/* 55 * Decode an ioctl command symbolically 56 */ 57static void 58svr4_decode_cmd(cmd, dir, c, num, argsiz) 59 u_long cmd; 60 char *dir, *c; 61 int *num, *argsiz; 62{ 63 if (cmd & SVR4_IOC_VOID) 64 *dir++ = 'V'; 65 if (cmd & SVR4_IOC_IN) 66 *dir++ = 'R'; 67 if (cmd & SVR4_IOC_OUT) 68 *dir++ = 'W'; 69 *dir = '\0'; 70 if (cmd & SVR4_IOC_INOUT) 71 *argsiz = (cmd >> 16) & 0xff; 72 else 73 *argsiz = -1; 74 75 *c = (cmd >> 8) & 0xff; 76 *num = cmd & 0xff; 77} 78#endif 79 80int 81svr4_sys_ioctl(p, uap) 82 register struct proc *p; 83 struct svr4_sys_ioctl_args *uap; 84{ 85 int *retval; 86 struct file *fp; 87 struct filedesc *fdp; 88 u_long cmd; 89 int (*fun) __P((struct file *, struct proc *, register_t *, 90 int, u_long, caddr_t)); 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[%x](%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 = p->p_retval; 103 fdp = p->p_fd; 104 cmd = SCARG(uap, com); 105 106 if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || 107 (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) 108 return EBADF; 109 110 if ((fp->f_flag & (FREAD | FWRITE)) == 0) 111 return EBADF; 112 113#if defined(DEBUG_SVR4) 114 if (fp->f_type == DTYPE_SOCKET) { 115 struct socket *so = 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 return EINVAL; 149 150 default: 151 DPRINTF(("Unimplemented ioctl %lx\n", cmd)); 152 return 0; /* XXX: really ENOSYS */ 153 } 154#if defined(DEBUG_SVR4) 155 if (fp->f_type == DTYPE_SOCKET) { 156 struct socket *so = fp->f_data; 157 DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state)); 158 } 159#endif 160 return (*fun)(fp, p, retval, SCARG(uap, fd), cmd, SCARG(uap, data)); 161} 162