7e4c54a2a4
Some architectures define and use this type in their compat_ioctl code, but all of them can easily use the identical ioctl_trans_handler_t type that is defined in common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* $Id: ioctl32.c,v 1.136 2002/01/14 09:49:52 davem Exp $
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* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
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*
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* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
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* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
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* Copyright (C) 2003 Pavel Machek (pavel@suse.cz)
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* ioctls.
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*/
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#define INCLUDES
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#include "compat_ioctl.c"
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#include <linux/syscalls.h>
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#include <asm/fbio.h>
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/* Use this to get at 32-bit user passed pointers.
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* See sys_sparc32.c for description about it.
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*/
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#define A(__x) compat_ptr(__x)
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#define CODE
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#include "compat_ioctl.c"
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struct fbcmap32 {
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int index; /* first element (0 origin) */
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int count;
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u32 red;
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u32 green;
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u32 blue;
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};
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#define FBIOPUTCMAP32 _IOW('F', 3, struct fbcmap32)
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#define FBIOGETCMAP32 _IOW('F', 4, struct fbcmap32)
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static int fbiogetputcmap(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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struct fbcmap32 __user *argp = (void __user *)arg;
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struct fbcmap __user *p = compat_alloc_user_space(sizeof(*p));
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u32 addr;
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int ret;
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ret = copy_in_user(p, argp, 2 * sizeof(int));
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ret |= get_user(addr, &argp->red);
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ret |= put_user(compat_ptr(addr), &p->red);
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ret |= get_user(addr, &argp->green);
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ret |= put_user(compat_ptr(addr), &p->green);
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ret |= get_user(addr, &argp->blue);
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ret |= put_user(compat_ptr(addr), &p->blue);
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if (ret)
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return -EFAULT;
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return sys_ioctl(fd, (cmd == FBIOPUTCMAP32) ? FBIOPUTCMAP_SPARC : FBIOGETCMAP_SPARC, (unsigned long)p);
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}
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struct fbcursor32 {
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short set; /* what to set, choose from the list above */
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short enable; /* cursor on/off */
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struct fbcurpos pos; /* cursor position */
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struct fbcurpos hot; /* cursor hot spot */
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struct fbcmap32 cmap; /* color map info */
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struct fbcurpos size; /* cursor bit map size */
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u32 image; /* cursor image bits */
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u32 mask; /* cursor mask bits */
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};
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#define FBIOSCURSOR32 _IOW('F', 24, struct fbcursor32)
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#define FBIOGCURSOR32 _IOW('F', 25, struct fbcursor32)
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static int fbiogscursor(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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struct fbcursor __user *p = compat_alloc_user_space(sizeof(*p));
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struct fbcursor32 __user *argp = (void __user *)arg;
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compat_uptr_t addr;
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int ret;
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ret = copy_in_user(p, argp,
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2 * sizeof (short) + 2 * sizeof(struct fbcurpos));
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ret |= copy_in_user(&p->size, &argp->size, sizeof(struct fbcurpos));
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ret |= copy_in_user(&p->cmap, &argp->cmap, 2 * sizeof(int));
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ret |= get_user(addr, &argp->cmap.red);
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ret |= put_user(compat_ptr(addr), &p->cmap.red);
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ret |= get_user(addr, &argp->cmap.green);
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ret |= put_user(compat_ptr(addr), &p->cmap.green);
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ret |= get_user(addr, &argp->cmap.blue);
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ret |= put_user(compat_ptr(addr), &p->cmap.blue);
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ret |= get_user(addr, &argp->mask);
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ret |= put_user(compat_ptr(addr), &p->mask);
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ret |= get_user(addr, &argp->image);
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ret |= put_user(compat_ptr(addr), &p->image);
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if (ret)
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return -EFAULT;
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return sys_ioctl (fd, FBIOSCURSOR, (unsigned long)p);
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}
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#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
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#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
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#define IOCTL_TABLE_START \
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struct ioctl_trans ioctl_start[] = {
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#define IOCTL_TABLE_END \
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};
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IOCTL_TABLE_START
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#include <linux/compat_ioctl.h>
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#define DECLARES
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#include "compat_ioctl.c"
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COMPATIBLE_IOCTL(FBIOGTYPE)
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COMPATIBLE_IOCTL(FBIOSATTR)
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COMPATIBLE_IOCTL(FBIOGATTR)
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COMPATIBLE_IOCTL(FBIOSVIDEO)
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COMPATIBLE_IOCTL(FBIOGVIDEO)
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COMPATIBLE_IOCTL(FBIOGCURSOR32) /* This is not implemented yet. Later it should be converted... */
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COMPATIBLE_IOCTL(FBIOSCURPOS)
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COMPATIBLE_IOCTL(FBIOGCURPOS)
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COMPATIBLE_IOCTL(FBIOGCURMAX)
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/* Little k */
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/* Little v, the video4linux ioctls */
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COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
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COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
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/* And these ioctls need translation */
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/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
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HANDLE_IOCTL(FBIOPUTCMAP32, fbiogetputcmap)
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HANDLE_IOCTL(FBIOGETCMAP32, fbiogetputcmap)
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HANDLE_IOCTL(FBIOSCURSOR32, fbiogscursor)
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#if 0
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HANDLE_IOCTL(RTC32_IRQP_READ, do_rtc_ioctl)
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HANDLE_IOCTL(RTC32_IRQP_SET, do_rtc_ioctl)
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HANDLE_IOCTL(RTC32_EPOCH_READ, do_rtc_ioctl)
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HANDLE_IOCTL(RTC32_EPOCH_SET, do_rtc_ioctl)
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#endif
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/* take care of sizeof(sizeof()) breakage */
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IOCTL_TABLE_END
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int ioctl_table_size = ARRAY_SIZE(ioctl_start);
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