arch/sparc/kernel/sunos_ioctl.c

   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
  28 extern char sunkbd_type;
  29 extern char sunkbd_layout;
  30 #endif
  31
  32 /* NR_OPEN is now larger and dynamic in recent kernels. */
  33 #define SUNOS_NR_OPEN   256
  34
  35 asmlinkage 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);
 226 out:
 227         return ret;
 228 }
 229
 230