LXR linux/arch/sparc/kernel/sunos

   1/* $Id: sunos_ioctl.c,v 1.34 2000/09/03 14:10:56 anton Exp $
   2 * sunos_ioctl.c: The Linux Operating system: SunOS ioctl compatibility.
   3 * 
   4 * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
   5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   6 */
   7
   8#include <asm/uaccess.h>
   9
  10#include <linux/sched.h>
  11#include <linux/errno.h>
  12#include <linux/string.h>
  13#include <linux/termios.h>
  14#include <linux/tty.h>
  15#include <linux/ioctl.h>
  16#include <linux/route.h>
  17#include <linux/sockios.h>
  18#include <linux/if.h>
  19#include <linux/netdevice.h>
  20#include <linux/if_arp.h>
  21#include <linux/fs.h>
  22#include <linux/mm.h>
  23#include <linux/smp.h>
  24#include <linux/syscalls.h>
  25#include <linux/file.h>
  26
  27#if 0
  28extern char sunkbd_type;
  29extern char sunkbd_layout;
  30#endif
  31
  32/* NR_OPEN is now larger and dynamic in recent kernels. */
  33#define SUNOS_NR_OPEN   256
  34
  35asmlinkage int sunos_ioctl (int fd, unsigned long cmd, unsigned long arg)
  36{
  37        int ret = -EBADF;
  38
  39        if (fd >= SUNOS_NR_OPEN || !fcheck(fd))
  40                goto out;
  41
  42        /* First handle an easy compat. case for tty ldisc. */
  43        if (cmd == TIOCSETD) {
  44                int __user *p;
  45                int ntty = N_TTY, tmp;
  46                mm_segment_t oldfs;
  47
  48                p = (int __user *) arg;
  49                ret = -EFAULT;
  50                if (get_user(tmp, p))
  51                        goto out;
  52                if (tmp == 2) {
  53                        oldfs = get_fs();
  54                        set_fs(KERNEL_DS);
  55                        ret = sys_ioctl(fd, cmd, (unsigned long) &ntty);
  56                        set_fs(oldfs);
  57                        ret = (ret == -EINVAL ? -EOPNOTSUPP : ret);
  58                        goto out;
  59                }
  60        }
  61
  62        /* Binary compatibility is good American knowhow fuckin' up. */
  63        if (cmd == TIOCNOTTY) {
  64                ret = sys_setsid();
  65                goto out;
  66        }
  67
  68        /* SunOS networking ioctls. */
  69        switch (cmd) {
  70        case _IOW('r', 10, struct rtentry):
  71                ret = sys_ioctl(fd, SIOCADDRT, arg);
  72                goto out;
  73        case _IOW('r', 11, struct rtentry):
  74                ret = sys_ioctl(fd, SIOCDELRT, arg);
  75                goto out;
  76        case _IOW('i', 12, struct ifreq):
  77                ret = sys_ioctl(fd, SIOCSIFADDR, arg);
  78                goto out;
  79        case _IOWR('i', 13, struct ifreq):
  80                ret = sys_ioctl(fd, SIOCGIFADDR, arg);
  81                goto out;
  82        case _IOW('i', 14, struct ifreq):
  83                ret = sys_ioctl(fd, SIOCSIFDSTADDR, arg);
  84                goto out;
  85        case _IOWR('i', 15, struct ifreq):
  86                ret = sys_ioctl(fd, SIOCGIFDSTADDR, arg);
  87                goto out;
  88        case _IOW('i', 16, struct ifreq):
  89                ret = sys_ioctl(fd, SIOCSIFFLAGS, arg);
  90                goto out;
  91        case _IOWR('i', 17, struct ifreq):
  92                ret = sys_ioctl(fd, SIOCGIFFLAGS, arg);
  93                goto out;
  94        case _IOW('i', 18, struct ifreq):
  95                ret = sys_ioctl(fd, SIOCSIFMEM, arg);
  96                goto out;
  97        case _IOWR('i', 19, struct ifreq):
  98                ret = sys_ioctl(fd, SIOCGIFMEM, arg);
  99                goto out;
 100        case _IOWR('i', 20, struct ifconf):
 101                ret = sys_ioctl(fd, SIOCGIFCONF, arg);
 102                goto out;
 103        case _IOW('i', 21, struct ifreq): /* SIOCSIFMTU */
 104                ret = sys_ioctl(fd, SIOCSIFMTU, arg);
 105                goto out;
 106        case _IOWR('i', 22, struct ifreq): /* SIOCGIFMTU */
 107                ret = sys_ioctl(fd, SIOCGIFMTU, arg);
 108                goto out;
 109
 110        case _IOWR('i', 23, struct ifreq):
 111                ret = sys_ioctl(fd, SIOCGIFBRDADDR, arg);
 112                goto out;
 113        case _IOW('i', 24, struct ifreq):
 114                ret = sys_ioctl(fd, SIOCSIFBRDADDR, arg);
 115                goto out;
 116        case _IOWR('i', 25, struct ifreq):
 117                ret = sys_ioctl(fd, SIOCGIFNETMASK, arg);
 118                goto out;
 119        case _IOW('i', 26, struct ifreq):
 120                ret = sys_ioctl(fd, SIOCSIFNETMASK, arg);
 121                goto out;
 122        case _IOWR('i', 27, struct ifreq):
 123                ret = sys_ioctl(fd, SIOCGIFMETRIC, arg);
 124                goto out;
 125        case _IOW('i', 28, struct ifreq):
 126                ret = sys_ioctl(fd, SIOCSIFMETRIC, arg);
 127                goto out;
 128
 129        case _IOW('i', 30, struct arpreq):
 130                ret = sys_ioctl(fd, SIOCSARP, arg);
 131                goto out;
 132        case _IOWR('i', 31, struct arpreq):
 133                ret = sys_ioctl(fd, SIOCGARP, arg);
 134                goto out;
 135        case _IOW('i', 32, struct arpreq):
 136                ret = sys_ioctl(fd, SIOCDARP, arg);
 137                goto out;
 138
 139        case _IOW('i', 40, struct ifreq): /* SIOCUPPER */
 140        case _IOW('i', 41, struct ifreq): /* SIOCLOWER */
 141        case _IOW('i', 44, struct ifreq): /* SIOCSETSYNC */
 142        case _IOW('i', 45, struct ifreq): /* SIOCGETSYNC */
 143        case _IOW('i', 46, struct ifreq): /* SIOCSSDSTATS */
 144        case _IOW('i', 47, struct ifreq): /* SIOCSSESTATS */
 145        case _IOW('i', 48, struct ifreq): /* SIOCSPROMISC */
 146                ret = -EOPNOTSUPP;
 147                goto out;
 148
 149        case _IOW('i', 49, struct ifreq):
 150                ret = sys_ioctl(fd, SIOCADDMULTI, arg);
 151                goto out;
 152        case _IOW('i', 50, struct ifreq):
 153                ret = sys_ioctl(fd, SIOCDELMULTI, arg);
 154                goto out;
 155
 156        /* FDDI interface ioctls, unsupported. */
 157                
 158        case _IOW('i', 51, struct ifreq): /* SIOCFDRESET */
 159        case _IOW('i', 52, struct ifreq): /* SIOCFDSLEEP */
 160        case _IOW('i', 53, struct ifreq): /* SIOCSTRTFMWAR */
 161        case _IOW('i', 54, struct ifreq): /* SIOCLDNSTRTFW */
 162        case _IOW('i', 55, struct ifreq): /* SIOCGETFDSTAT */
 163        case _IOW('i', 56, struct ifreq): /* SIOCFDNMIINT */
 164        case _IOW('i', 57, struct ifreq): /* SIOCFDEXUSER */
 165        case _IOW('i', 58, struct ifreq): /* SIOCFDGNETMAP */
 166        case _IOW('i', 59, struct ifreq): /* SIOCFDGIOCTL */
 167                printk("FDDI ioctl, returning EOPNOTSUPP\n");
 168                ret = -EOPNOTSUPP;
 169                goto out;
 170
 171        case _IOW('t', 125, int):
 172                /* More stupid tty sunos ioctls, just
 173                 * say it worked.
 174                 */
 175                ret = 0;
 176                goto out;
 177        /* Non posix grp */
 178        case _IOW('t', 118, int): {
 179                int oldval, newval, __user *ptr;
 180
 181                cmd = TIOCSPGRP;
 182                ptr = (int __user *) arg;
 183                ret = -EFAULT;
 184                if (get_user(oldval, ptr))
 185                        goto out;
 186                ret = sys_ioctl(fd, cmd, arg);
 187                __get_user(newval, ptr);
 188                if (newval == -1) {
 189                        __put_user(oldval, ptr);
 190                        ret = -EIO;
 191                }
 192                if (ret == -ENOTTY)
 193                        ret = -EIO;
 194                goto out;
 195        }
 196
 197        case _IOR('t', 119, int): {
 198                int oldval, newval, __user *ptr;
 199
 200                cmd = TIOCGPGRP;
 201                ptr = (int __user *) arg;
 202                ret = -EFAULT;
 203                if (get_user(oldval, ptr))
 204                        goto out;
 205                ret = sys_ioctl(fd, cmd, arg);
 206                __get_user(newval, ptr);
 207                if (newval == -1) {
 208                        __put_user(oldval, ptr);
 209                        ret = -EIO;
 210                }
 211                if (ret == -ENOTTY)
 212                        ret = -EIO;
 213                goto out;
 214        }
 215        }
 216
 217#if 0
 218        if ((cmd & 0xff00) == ('k' << 8)) {
 219                printk ("[[KBIO: %8.8x\n", (unsigned int) cmd);
 220        }
 221#endif
 222
 223        ret = sys_ioctl(fd, cmd, arg);
 224        /* so stupid... */
 225        ret = (ret == -EINVAL ? -EOPNOTSUPP : ret);
 226out:
 227        return ret;
 228}
 229
 230
 231