| 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: src/sys/svr4/svr4_ioctl.c,v 1.6 1999/12/08 12:00:48 newton Exp $ |
| 29 | * $DragonFly: src/sys/emulation/svr4/Attic/svr4_ioctl.c,v 1.8 2003/07/30 00:19:15 dillon Exp $ |
| 30 | */ |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/proc.h> |
| 34 | #include <sys/file.h> |
| 35 | #include <sys/filedesc.h> |
| 36 | #include <sys/fcntl.h> |
| 37 | #include <sys/socket.h> |
| 38 | #include <sys/socketvar.h> |
| 39 | #include <sys/systm.h> |
| 40 | |
| 41 | #include <svr4/svr4.h> |
| 42 | #include <svr4/svr4_types.h> |
| 43 | #include <svr4/svr4_util.h> |
| 44 | #include <svr4/svr4_signal.h> |
| 45 | #include <svr4/svr4_proto.h> |
| 46 | #include <svr4/svr4_stropts.h> |
| 47 | #include <svr4/svr4_ioctl.h> |
| 48 | #include <svr4/svr4_termios.h> |
| 49 | #include <svr4/svr4_ttold.h> |
| 50 | #include <svr4/svr4_filio.h> |
| 51 | #include <svr4/svr4_sockio.h> |
| 52 | |
| 53 | #ifdef DEBUG_SVR4 |
| 54 | static void svr4_decode_cmd __P((u_long, char *, char *, int *, int *)); |
| 55 | /* |
| 56 | * Decode an ioctl command symbolically |
| 57 | */ |
| 58 | static void |
| 59 | svr4_decode_cmd(cmd, dir, c, num, argsiz) |
| 60 | u_long cmd; |
| 61 | char *dir, *c; |
| 62 | int *num, *argsiz; |
| 63 | { |
| 64 | if (cmd & SVR4_IOC_VOID) |
| 65 | *dir++ = 'V'; |
| 66 | if (cmd & SVR4_IOC_IN) |
| 67 | *dir++ = 'R'; |
| 68 | if (cmd & SVR4_IOC_OUT) |
| 69 | *dir++ = 'W'; |
| 70 | *dir = '\0'; |
| 71 | if (cmd & SVR4_IOC_INOUT) |
| 72 | *argsiz = (cmd >> 16) & 0xff; |
| 73 | else |
| 74 | *argsiz = -1; |
| 75 | |
| 76 | *c = (cmd >> 8) & 0xff; |
| 77 | *num = cmd & 0xff; |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | int |
| 82 | svr4_sys_ioctl(struct svr4_sys_ioctl_args *uap) |
| 83 | { |
| 84 | struct thread *td = curthread; |
| 85 | struct proc *p = td->td_proc; |
| 86 | int *retval; |
| 87 | struct file *fp; |
| 88 | struct filedesc *fdp; |
| 89 | u_long cmd; |
| 90 | int (*fun) __P((struct file *, struct thread *, register_t *, |
| 91 | int, u_long, caddr_t)); |
| 92 | #ifdef DEBUG_SVR4 |
| 93 | char dir[4]; |
| 94 | char c; |
| 95 | int num; |
| 96 | int argsiz; |
| 97 | |
| 98 | KKASSERT(p); |
| 99 | |
| 100 | svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz); |
| 101 | |
| 102 | DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n", |
| 103 | SCARG(uap, com), SCARG(uap, fd), |
| 104 | dir, c, num, argsiz, SCARG(uap, data))); |
| 105 | #endif |
| 106 | retval = &uap->sysmsg_result; |
| 107 | fdp = p->p_fd; |
| 108 | cmd = SCARG(uap, com); |
| 109 | |
| 110 | if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || |
| 111 | (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) |
| 112 | return EBADF; |
| 113 | |
| 114 | if ((fp->f_flag & (FREAD | FWRITE)) == 0) |
| 115 | return EBADF; |
| 116 | |
| 117 | #if defined(DEBUG_SVR4) |
| 118 | if (fp->f_type == DTYPE_SOCKET) { |
| 119 | struct socket *so = (struct socket *)fp->f_data; |
| 120 | DPRINTF(("<<< IN: so_state = 0x%x\n", so->so_state)); |
| 121 | } |
| 122 | #endif |
| 123 | |
| 124 | switch (cmd & 0xff00) { |
| 125 | case SVR4_tIOC: |
| 126 | DPRINTF(("ttold\n")); |
| 127 | fun = svr4_ttold_ioctl; |
| 128 | break; |
| 129 | |
| 130 | case SVR4_TIOC: |
| 131 | DPRINTF(("term\n")); |
| 132 | fun = svr4_term_ioctl; |
| 133 | break; |
| 134 | |
| 135 | case SVR4_STR: |
| 136 | DPRINTF(("stream\n")); |
| 137 | fun = svr4_stream_ioctl; |
| 138 | break; |
| 139 | |
| 140 | case SVR4_FIOC: |
| 141 | DPRINTF(("file\n")); |
| 142 | fun = svr4_fil_ioctl; |
| 143 | break; |
| 144 | |
| 145 | case SVR4_SIOC: |
| 146 | DPRINTF(("socket\n")); |
| 147 | fun = svr4_sock_ioctl; |
| 148 | break; |
| 149 | |
| 150 | case SVR4_XIOC: |
| 151 | /* We do not support those */ |
| 152 | return EINVAL; |
| 153 | |
| 154 | default: |
| 155 | DPRINTF(("Unimplemented ioctl %lx\n", cmd)); |
| 156 | return 0; /* XXX: really ENOSYS */ |
| 157 | } |
| 158 | #if defined(DEBUG_SVR4) |
| 159 | if (fp->f_type == DTYPE_SOCKET) { |
| 160 | struct socket *so = (struct socket *)fp->f_data; |
| 161 | DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state)); |
| 162 | } |
| 163 | #endif |
| 164 | return (*fun)(fp, td, retval, SCARG(uap, fd), cmd, SCARG(uap, data)); |
| 165 | } |