drivers/char/adsprpc_compat.c - kernel/msm-4.9 - Gitiles

 /*
  * Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  */

 #include <linux/compat.h>
 #include <linux/fs.h>
 #include <linux/uaccess.h>
 #include <linux/msm_ion.h>

 #include "adsprpc_compat.h"
 #include "adsprpc_shared.h"

 #define COMPAT_FASTRPC_IOCTL_INVOKE \
 		_IOWR('R', 1, struct compat_fastrpc_ioctl_invoke)
 #define COMPAT_FASTRPC_IOCTL_MMAP \
 		_IOWR('R', 2, struct compat_fastrpc_ioctl_mmap)
 #define COMPAT_FASTRPC_IOCTL_MUNMAP \
 		_IOWR('R', 3, struct compat_fastrpc_ioctl_munmap)
 #define COMPAT_FASTRPC_IOCTL_INVOKE_FD \
 		_IOWR('R', 4, struct compat_fastrpc_ioctl_invoke_fd)
 #define COMPAT_FASTRPC_IOCTL_INIT \
 		_IOWR('R', 6, struct compat_fastrpc_ioctl_init)
 #define COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS \
 		_IOWR('R', 7, struct compat_fastrpc_ioctl_invoke_attrs)
 #define COMPAT_FASTRPC_IOCTL_GETPERF \
 		_IOWR('R', 9, struct compat_fastrpc_ioctl_perf)
 #define COMPAT_FASTRPC_IOCTL_INIT_ATTRS \
 		_IOWR('R', 10, struct compat_fastrpc_ioctl_init_attrs)

 struct compat_remote_buf {
 	compat_uptr_t pv;	/* buffer pointer */
 	compat_ssize_t len;	/* length of buffer */
 };

 union compat_remote_arg {
 	struct compat_remote_buf buf;
 	compat_uint_t h;
 };

 struct compat_fastrpc_ioctl_invoke {
 	compat_uint_t handle;	/* remote handle */
 	compat_uint_t sc;	/* scalars describing the data */
 	compat_uptr_t pra;	/* remote arguments list */
 };

 struct compat_fastrpc_ioctl_invoke_fd {
 	struct compat_fastrpc_ioctl_invoke inv;
 	compat_uptr_t fds;	/* fd list */
 };

 struct compat_fastrpc_ioctl_invoke_attrs {
 	struct compat_fastrpc_ioctl_invoke inv;
 	compat_uptr_t fds;	/* fd list */
 	compat_uptr_t attrs;	/* attribute list */
 };

 struct compat_fastrpc_ioctl_mmap {
 	compat_int_t fd;	/* ion fd */
 	compat_uint_t flags;	/* flags for dsp to map with */
 	compat_uptr_t vaddrin;	/* optional virtual address */
 	compat_ssize_t size;	/* size */
 	compat_uptr_t vaddrout;	/* dsps virtual address */
 };

 struct compat_fastrpc_ioctl_munmap {
 	compat_uptr_t vaddrout;	/* address to unmap */
 	compat_ssize_t size;	/* size */
 };

 struct compat_fastrpc_ioctl_init {
 	compat_uint_t flags;	/* one of FASTRPC_INIT_* macros */
 	compat_uptr_t file;	/* pointer to elf file */
 	compat_int_t filelen;	/* elf file length */
 	compat_int_t filefd;	/* ION fd for the file */
 	compat_uptr_t mem;	/* mem for the PD */
 	compat_int_t memlen;	/* mem length */
 	compat_int_t memfd;	/* ION fd for the mem */
 };

 struct compat_fastrpc_ioctl_init_attrs {
 	struct compat_fastrpc_ioctl_init init;
 	compat_int_t attrs;	/* attributes to init process */
 	compat_int_t siglen;	/* test signature file length */
 };

 struct compat_fastrpc_ioctl_perf {	/* kernel performance data */
 	compat_uptr_t  data;
 	compat_int_t numkeys;
 	compat_uptr_t keys;
 };

 static int compat_get_fastrpc_ioctl_invoke(
 			struct compat_fastrpc_ioctl_invoke_attrs __user *inv32,
 			struct fastrpc_ioctl_invoke_attrs __user **inva,
 			unsigned int cmd)
 {
 	compat_uint_t u, sc;
 	compat_ssize_t s;
 	compat_uptr_t p;
 	struct fastrpc_ioctl_invoke_attrs *inv;
 	union compat_remote_arg *pra32;
 	union remote_arg *pra;
 	int err, len, j;

 	err = get_user(sc, &inv32->inv.sc);
 	if (err)
 		return err;

 	len = REMOTE_SCALARS_LENGTH(sc);
 	VERIFY(err, NULL != (inv = compat_alloc_user_space(
 				sizeof(*inv) + len * sizeof(*pra))));
 	if (err)
 		return -EFAULT;

 	pra = (union remote_arg *)(inv + 1);
 	err = put_user(pra, &inv->inv.pra);
 	err |= put_user(sc, &inv->inv.sc);
 	err |= get_user(u, &inv32->inv.handle);
 	err |= put_user(u, &inv->inv.handle);
 	err |= get_user(p, &inv32->inv.pra);
 	if (err)
 		return err;

 	pra32 = compat_ptr(p);
 	pra = (union remote_arg *)(inv + 1);
 	for (j = 0; j < len; j++) {
 		err |= get_user(p, &pra32[j].buf.pv);
 		err |= put_user(p, (uintptr_t *)&pra[j].buf.pv);
 		err |= get_user(s, &pra32[j].buf.len);
 		err |= put_user(s, &pra[j].buf.len);
 	}

 	err |= put_user(NULL, &inv->fds);
 	if (cmd != COMPAT_FASTRPC_IOCTL_INVOKE) {
 		err |= get_user(p, &inv32->fds);
 		err |= put_user(p, (compat_uptr_t *)&inv->fds);
 	}
 	err |= put_user(NULL, &inv->attrs);
 	if (cmd == COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS) {
 		err |= get_user(p, &inv32->attrs);
 		err |= put_user(p, (compat_uptr_t *)&inv->attrs);
 	}

 	*inva = inv;
 	return err;
 }

 static int compat_get_fastrpc_ioctl_mmap(
 			struct compat_fastrpc_ioctl_mmap __user *map32,
 			struct fastrpc_ioctl_mmap __user *map)
 {
 	compat_uint_t u;
 	compat_int_t i;
 	compat_ssize_t s;
 	compat_uptr_t p;
 	int err;

 	err = get_user(i, &map32->fd);
 	err |= put_user(i, &map->fd);
 	err |= get_user(u, &map32->flags);
 	err |= put_user(u, &map->flags);
 	err |= get_user(p, &map32->vaddrin);
 	err |= put_user(p, (uintptr_t *)&map->vaddrin);
 	err |= get_user(s, &map32->size);
 	err |= put_user(s, &map->size);

 	return err;
 }

 static int compat_put_fastrpc_ioctl_mmap(
 			struct compat_fastrpc_ioctl_mmap __user *map32,
 			struct fastrpc_ioctl_mmap __user *map)
 {
 	compat_uptr_t p;
 	int err;

 	err = get_user(p, &map->vaddrout);
 	err |= put_user(p, &map32->vaddrout);

 	return err;
 }

 static int compat_get_fastrpc_ioctl_munmap(
 			struct compat_fastrpc_ioctl_munmap __user *unmap32,
 			struct fastrpc_ioctl_munmap __user *unmap)
 {
 	compat_uptr_t p;
 	compat_ssize_t s;
 	int err;

 	err = get_user(p, &unmap32->vaddrout);
 	err |= put_user(p, &unmap->vaddrout);
 	err |= get_user(s, &unmap32->size);
 	err |= put_user(s, &unmap->size);

 	return err;
 }

 static int compat_get_fastrpc_ioctl_perf(
 			struct compat_fastrpc_ioctl_perf __user *perf32,
 			struct fastrpc_ioctl_perf __user *perf)
 {
 	compat_uptr_t p;
 	int err;

 	err = get_user(p, &perf32->data);
 	err |= put_user(p, &perf->data);
 	err |= get_user(p, &perf32->keys);
 	err |= put_user(p, &perf->keys);

 	return err;
 }

 static int compat_get_fastrpc_ioctl_init(
 			struct compat_fastrpc_ioctl_init_attrs __user *init32,
 			struct fastrpc_ioctl_init_attrs __user *init,
 			unsigned int cmd)
 {
 	compat_uint_t u;
 	compat_uptr_t p;
 	compat_int_t i;
 	int err;

 	err = get_user(u, &init32->init.flags);
 	err |= put_user(u, &init->init.flags);
 	err |= get_user(p, &init32->init.file);
 	err |= put_user(p, &init->init.file);
 	err |= get_user(i, &init32->init.filelen);
 	err |= put_user(i, &init->init.filelen);
 	err |= get_user(i, &init32->init.filefd);
 	err |= put_user(i, &init->init.filefd);
 	err |= get_user(p, &init32->init.mem);
 	err |= put_user(p, &init->init.mem);
 	err |= get_user(i, &init32->init.memlen);
 	err |= put_user(i, &init->init.memlen);
 	err |= get_user(i, &init32->init.memfd);
 	err |= put_user(i, &init->init.memfd);

 	err |= put_user(0, &init->attrs);
 	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {
 		err |= get_user(i, &init32->attrs);
 		err |= put_user(i, (compat_uptr_t *)&init->attrs);
 	}

 	err |= put_user(0, &init->siglen);
 	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {
 		err |= get_user(i, &init32->siglen);
 		err |= put_user(i, (compat_uptr_t *)&init->siglen);
 	}

 	return err;
 }

 long compat_fastrpc_device_ioctl(struct file *filp, unsigned int cmd,
 				unsigned long arg)
 {
 	int err = 0;

 	if (!filp->f_op || !filp->f_op->unlocked_ioctl)
 		return -ENOTTY;

 	switch (cmd) {
 	case COMPAT_FASTRPC_IOCTL_INVOKE:
 	case COMPAT_FASTRPC_IOCTL_INVOKE_FD:
 	case COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS:
 	{
 		struct compat_fastrpc_ioctl_invoke_attrs __user *inv32;
 		struct fastrpc_ioctl_invoke_attrs __user *inv;

 		inv32 = compat_ptr(arg);
 		VERIFY(err, 0 == compat_get_fastrpc_ioctl_invoke(inv32,
 							&inv, cmd));
 		if (err)
 			return err;
 		return filp->f_op->unlocked_ioctl(filp,
 				FASTRPC_IOCTL_INVOKE_ATTRS, (unsigned long)inv);
 	}
 	case COMPAT_FASTRPC_IOCTL_MMAP:
 	{
 		struct compat_fastrpc_ioctl_mmap __user *map32;
 		struct fastrpc_ioctl_mmap __user *map;
 		long ret;

 		map32 = compat_ptr(arg);
 		VERIFY(err, NULL != (map = compat_alloc_user_space(
 							sizeof(*map))));
 		if (err)
 			return -EFAULT;
 		VERIFY(err, 0 == compat_get_fastrpc_ioctl_mmap(map32, map));
 		if (err)
 			return err;
 		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MMAP,
 							(unsigned long)map);
 		if (ret)
 			return ret;
 		VERIFY(err, 0 == compat_put_fastrpc_ioctl_mmap(map32, map));
 		return err;
 	}
 	case COMPAT_FASTRPC_IOCTL_MUNMAP:
 	{
 		struct compat_fastrpc_ioctl_munmap __user *unmap32;
 		struct fastrpc_ioctl_munmap __user *unmap;

 		unmap32 = compat_ptr(arg);
 		VERIFY(err, NULL != (unmap = compat_alloc_user_space(
 							sizeof(*unmap))));
 		if (err)
 			return -EFAULT;
 		VERIFY(err, 0 == compat_get_fastrpc_ioctl_munmap(unmap32,
 							unmap));
 		if (err)
 			return err;
 		return filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MUNMAP,
 							(unsigned long)unmap);
 	}
 	case COMPAT_FASTRPC_IOCTL_INIT:
 		/* fall through */
 	case COMPAT_FASTRPC_IOCTL_INIT_ATTRS:
 	{
 		struct compat_fastrpc_ioctl_init_attrs __user *init32;
 		struct fastrpc_ioctl_init_attrs __user *init;

 		init32 = compat_ptr(arg);
 		VERIFY(err, NULL != (init = compat_alloc_user_space(
 							sizeof(*init))));
 		if (err)
 			return -EFAULT;
 		VERIFY(err, 0 == compat_get_fastrpc_ioctl_init(init32,
 							init, cmd));
 		if (err)
 			return err;
 		return filp->f_op->unlocked_ioctl(filp,
 			 FASTRPC_IOCTL_INIT_ATTRS, (unsigned long)init);
 	}
 	case FASTRPC_IOCTL_GETINFO:
 	{
 		compat_uptr_t __user *info32;
 		uint32_t __user *info;
 		compat_uint_t u;
 		long ret;

 		info32 = compat_ptr(arg);
 		VERIFY(err, NULL != (info = compat_alloc_user_space(
 							sizeof(*info))));
 		if (err)
 			return -EFAULT;
 		err = get_user(u, info32);
 		err |= put_user(u, info);
 		if (err)
 			return err;
 		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETINFO,
 							(unsigned long)info);
 		if (ret)
 			return ret;
 		err = get_user(u, info);
 		err |= put_user(u, info32);
 		return err;
 	}
 	case FASTRPC_IOCTL_SETMODE:
 		return filp->f_op->unlocked_ioctl(filp, cmd,
 						(unsigned long)compat_ptr(arg));
 	case COMPAT_FASTRPC_IOCTL_GETPERF:
 	{
 		struct compat_fastrpc_ioctl_perf __user *perf32;
 		struct fastrpc_ioctl_perf *perf;
 		compat_uint_t u;
 		long ret;

 		perf32 = compat_ptr(arg);
 		VERIFY(err, NULL != (perf = compat_alloc_user_space(
 							sizeof(*perf))));
 		if (err)
 			return -EFAULT;
 		VERIFY(err, 0 == compat_get_fastrpc_ioctl_perf(perf32,
 							perf));
 		if (err)
 			return err;
 		ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETPERF,
 							(unsigned long)perf);
 		if (ret)
 			return ret;
 		err = get_user(u, &perf->numkeys);
 		err |= put_user(u, &perf32->numkeys);
 		return err;
 	}
 	default:
 		return -ENOIOCTLCMD;
 	}
 }
	/*
	* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	*/

	#include <linux/compat.h>
	#include <linux/fs.h>
	#include <linux/uaccess.h>
	#include <linux/msm_ion.h>

	#include "adsprpc_compat.h"
	#include "adsprpc_shared.h"

	#define COMPAT_FASTRPC_IOCTL_INVOKE \
	_IOWR('R', 1, struct compat_fastrpc_ioctl_invoke)
	#define COMPAT_FASTRPC_IOCTL_MMAP \
	_IOWR('R', 2, struct compat_fastrpc_ioctl_mmap)
	#define COMPAT_FASTRPC_IOCTL_MUNMAP \
	_IOWR('R', 3, struct compat_fastrpc_ioctl_munmap)
	#define COMPAT_FASTRPC_IOCTL_INVOKE_FD \
	_IOWR('R', 4, struct compat_fastrpc_ioctl_invoke_fd)
	#define COMPAT_FASTRPC_IOCTL_INIT \
	_IOWR('R', 6, struct compat_fastrpc_ioctl_init)
	#define COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS \
	_IOWR('R', 7, struct compat_fastrpc_ioctl_invoke_attrs)
	#define COMPAT_FASTRPC_IOCTL_GETPERF \
	_IOWR('R', 9, struct compat_fastrpc_ioctl_perf)
	#define COMPAT_FASTRPC_IOCTL_INIT_ATTRS \
	_IOWR('R', 10, struct compat_fastrpc_ioctl_init_attrs)

	struct compat_remote_buf {
	compat_uptr_t pv; /* buffer pointer */
	compat_ssize_t len; /* length of buffer */
	};

	union compat_remote_arg {
	struct compat_remote_buf buf;
	compat_uint_t h;
	};

	struct compat_fastrpc_ioctl_invoke {
	compat_uint_t handle; /* remote handle */
	compat_uint_t sc; /* scalars describing the data */
	compat_uptr_t pra; /* remote arguments list */
	};

	struct compat_fastrpc_ioctl_invoke_fd {
	struct compat_fastrpc_ioctl_invoke inv;
	compat_uptr_t fds; /* fd list */
	};

	struct compat_fastrpc_ioctl_invoke_attrs {
	struct compat_fastrpc_ioctl_invoke inv;
	compat_uptr_t fds; /* fd list */
	compat_uptr_t attrs; /* attribute list */
	};

	struct compat_fastrpc_ioctl_mmap {
	compat_int_t fd; /* ion fd */
	compat_uint_t flags; /* flags for dsp to map with */
	compat_uptr_t vaddrin; /* optional virtual address */
	compat_ssize_t size; /* size */
	compat_uptr_t vaddrout; /* dsps virtual address */
	};

	struct compat_fastrpc_ioctl_munmap {
	compat_uptr_t vaddrout; /* address to unmap */
	compat_ssize_t size; /* size */
	};

	struct compat_fastrpc_ioctl_init {
	compat_uint_t flags; /* one of FASTRPC_INIT_* macros */
	compat_uptr_t file; /* pointer to elf file */
	compat_int_t filelen; /* elf file length */
	compat_int_t filefd; /* ION fd for the file */
	compat_uptr_t mem; /* mem for the PD */
	compat_int_t memlen; /* mem length */
	compat_int_t memfd; /* ION fd for the mem */
	};

	struct compat_fastrpc_ioctl_init_attrs {
	struct compat_fastrpc_ioctl_init init;
	compat_int_t attrs; /* attributes to init process */
	compat_int_t siglen; /* test signature file length */
	};

	struct compat_fastrpc_ioctl_perf { /* kernel performance data */
	compat_uptr_t data;
	compat_int_t numkeys;
	compat_uptr_t keys;
	};

	static int compat_get_fastrpc_ioctl_invoke(
	struct compat_fastrpc_ioctl_invoke_attrs __user *inv32,
	struct fastrpc_ioctl_invoke_attrs __user **inva,
	unsigned int cmd)
	{
	compat_uint_t u, sc;
	compat_ssize_t s;
	compat_uptr_t p;
	struct fastrpc_ioctl_invoke_attrs *inv;
	union compat_remote_arg *pra32;
	union remote_arg *pra;
	int err, len, j;

	err = get_user(sc, &inv32->inv.sc);
	if (err)
	return err;

	len = REMOTE_SCALARS_LENGTH(sc);
	VERIFY(err, NULL != (inv = compat_alloc_user_space(
	sizeof(inv) + len sizeof(*pra))));
	if (err)
	return -EFAULT;

	pra = (union remote_arg *)(inv + 1);
	err = put_user(pra, &inv->inv.pra);
	err \|= put_user(sc, &inv->inv.sc);
	err \|= get_user(u, &inv32->inv.handle);
	err \|= put_user(u, &inv->inv.handle);
	err \|= get_user(p, &inv32->inv.pra);
	if (err)
	return err;

	pra32 = compat_ptr(p);
	pra = (union remote_arg *)(inv + 1);
	for (j = 0; j < len; j++) {
	err \|= get_user(p, &pra32[j].buf.pv);
	err \|= put_user(p, (uintptr_t *)&pra[j].buf.pv);
	err \|= get_user(s, &pra32[j].buf.len);
	err \|= put_user(s, &pra[j].buf.len);
	}

	err \|= put_user(NULL, &inv->fds);
	if (cmd != COMPAT_FASTRPC_IOCTL_INVOKE) {
	err \|= get_user(p, &inv32->fds);
	err \|= put_user(p, (compat_uptr_t *)&inv->fds);
	}
	err \|= put_user(NULL, &inv->attrs);
	if (cmd == COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS) {
	err \|= get_user(p, &inv32->attrs);
	err \|= put_user(p, (compat_uptr_t *)&inv->attrs);
	}

	*inva = inv;
	return err;
	}

	static int compat_get_fastrpc_ioctl_mmap(
	struct compat_fastrpc_ioctl_mmap __user *map32,
	struct fastrpc_ioctl_mmap __user *map)
	{
	compat_uint_t u;
	compat_int_t i;
	compat_ssize_t s;
	compat_uptr_t p;
	int err;

	err = get_user(i, &map32->fd);
	err \|= put_user(i, &map->fd);
	err \|= get_user(u, &map32->flags);
	err \|= put_user(u, &map->flags);
	err \|= get_user(p, &map32->vaddrin);
	err \|= put_user(p, (uintptr_t *)&map->vaddrin);
	err \|= get_user(s, &map32->size);
	err \|= put_user(s, &map->size);

	return err;
	}

	static int compat_put_fastrpc_ioctl_mmap(
	struct compat_fastrpc_ioctl_mmap __user *map32,
	struct fastrpc_ioctl_mmap __user *map)
	{
	compat_uptr_t p;
	int err;

	err = get_user(p, &map->vaddrout);
	err \|= put_user(p, &map32->vaddrout);

	return err;
	}

	static int compat_get_fastrpc_ioctl_munmap(
	struct compat_fastrpc_ioctl_munmap __user *unmap32,
	struct fastrpc_ioctl_munmap __user *unmap)
	{
	compat_uptr_t p;
	compat_ssize_t s;
	int err;

	err = get_user(p, &unmap32->vaddrout);
	err \|= put_user(p, &unmap->vaddrout);
	err \|= get_user(s, &unmap32->size);
	err \|= put_user(s, &unmap->size);

	return err;
	}

	static int compat_get_fastrpc_ioctl_perf(
	struct compat_fastrpc_ioctl_perf __user *perf32,
	struct fastrpc_ioctl_perf __user *perf)
	{
	compat_uptr_t p;
	int err;

	err = get_user(p, &perf32->data);
	err \|= put_user(p, &perf->data);
	err \|= get_user(p, &perf32->keys);
	err \|= put_user(p, &perf->keys);

	return err;
	}

	static int compat_get_fastrpc_ioctl_init(
	struct compat_fastrpc_ioctl_init_attrs __user *init32,
	struct fastrpc_ioctl_init_attrs __user *init,
	unsigned int cmd)
	{
	compat_uint_t u;
	compat_uptr_t p;
	compat_int_t i;
	int err;

	err = get_user(u, &init32->init.flags);
	err \|= put_user(u, &init->init.flags);
	err \|= get_user(p, &init32->init.file);
	err \|= put_user(p, &init->init.file);
	err \|= get_user(i, &init32->init.filelen);
	err \|= put_user(i, &init->init.filelen);
	err \|= get_user(i, &init32->init.filefd);
	err \|= put_user(i, &init->init.filefd);
	err \|= get_user(p, &init32->init.mem);
	err \|= put_user(p, &init->init.mem);
	err \|= get_user(i, &init32->init.memlen);
	err \|= put_user(i, &init->init.memlen);
	err \|= get_user(i, &init32->init.memfd);
	err \|= put_user(i, &init->init.memfd);

	err \|= put_user(0, &init->attrs);
	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {
	err \|= get_user(i, &init32->attrs);
	err \|= put_user(i, (compat_uptr_t *)&init->attrs);
	}

	err \|= put_user(0, &init->siglen);
	if (cmd == COMPAT_FASTRPC_IOCTL_INIT_ATTRS) {
	err \|= get_user(i, &init32->siglen);
	err \|= put_user(i, (compat_uptr_t *)&init->siglen);
	}

	return err;
	}

	long compat_fastrpc_device_ioctl(struct file *filp, unsigned int cmd,
	unsigned long arg)
	{
	int err = 0;

	if (!filp->f_op \|\| !filp->f_op->unlocked_ioctl)
	return -ENOTTY;

	switch (cmd) {
	case COMPAT_FASTRPC_IOCTL_INVOKE:
	case COMPAT_FASTRPC_IOCTL_INVOKE_FD:
	case COMPAT_FASTRPC_IOCTL_INVOKE_ATTRS:
	{
	struct compat_fastrpc_ioctl_invoke_attrs __user *inv32;
	struct fastrpc_ioctl_invoke_attrs __user *inv;

	inv32 = compat_ptr(arg);
	VERIFY(err, 0 == compat_get_fastrpc_ioctl_invoke(inv32,
	&inv, cmd));
	if (err)
	return err;
	return filp->f_op->unlocked_ioctl(filp,
	FASTRPC_IOCTL_INVOKE_ATTRS, (unsigned long)inv);
	}
	case COMPAT_FASTRPC_IOCTL_MMAP:
	{
	struct compat_fastrpc_ioctl_mmap __user *map32;
	struct fastrpc_ioctl_mmap __user *map;
	long ret;

	map32 = compat_ptr(arg);
	VERIFY(err, NULL != (map = compat_alloc_user_space(
	sizeof(*map))));
	if (err)
	return -EFAULT;
	VERIFY(err, 0 == compat_get_fastrpc_ioctl_mmap(map32, map));
	if (err)
	return err;
	ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MMAP,
	(unsigned long)map);
	if (ret)
	return ret;
	VERIFY(err, 0 == compat_put_fastrpc_ioctl_mmap(map32, map));
	return err;
	}
	case COMPAT_FASTRPC_IOCTL_MUNMAP:
	{
	struct compat_fastrpc_ioctl_munmap __user *unmap32;
	struct fastrpc_ioctl_munmap __user *unmap;

	unmap32 = compat_ptr(arg);
	VERIFY(err, NULL != (unmap = compat_alloc_user_space(
	sizeof(*unmap))));
	if (err)
	return -EFAULT;
	VERIFY(err, 0 == compat_get_fastrpc_ioctl_munmap(unmap32,
	unmap));
	if (err)
	return err;
	return filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_MUNMAP,
	(unsigned long)unmap);
	}
	case COMPAT_FASTRPC_IOCTL_INIT:
	/* fall through */
	case COMPAT_FASTRPC_IOCTL_INIT_ATTRS:
	{
	struct compat_fastrpc_ioctl_init_attrs __user *init32;
	struct fastrpc_ioctl_init_attrs __user *init;

	init32 = compat_ptr(arg);
	VERIFY(err, NULL != (init = compat_alloc_user_space(
	sizeof(*init))));
	if (err)
	return -EFAULT;
	VERIFY(err, 0 == compat_get_fastrpc_ioctl_init(init32,
	init, cmd));
	if (err)
	return err;
	return filp->f_op->unlocked_ioctl(filp,
	FASTRPC_IOCTL_INIT_ATTRS, (unsigned long)init);
	}
	case FASTRPC_IOCTL_GETINFO:
	{
	compat_uptr_t __user *info32;
	uint32_t __user *info;
	compat_uint_t u;
	long ret;

	info32 = compat_ptr(arg);
	VERIFY(err, NULL != (info = compat_alloc_user_space(
	sizeof(*info))));
	if (err)
	return -EFAULT;
	err = get_user(u, info32);
	err \|= put_user(u, info);
	if (err)
	return err;
	ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETINFO,
	(unsigned long)info);
	if (ret)
	return ret;
	err = get_user(u, info);
	err \|= put_user(u, info32);
	return err;
	}
	case FASTRPC_IOCTL_SETMODE:
	return filp->f_op->unlocked_ioctl(filp, cmd,
	(unsigned long)compat_ptr(arg));
	case COMPAT_FASTRPC_IOCTL_GETPERF:
	{
	struct compat_fastrpc_ioctl_perf __user *perf32;
	struct fastrpc_ioctl_perf *perf;
	compat_uint_t u;
	long ret;

	perf32 = compat_ptr(arg);
	VERIFY(err, NULL != (perf = compat_alloc_user_space(
	sizeof(*perf))));
	if (err)
	return -EFAULT;
	VERIFY(err, 0 == compat_get_fastrpc_ioctl_perf(perf32,
	perf));
	if (err)
	return err;
	ret = filp->f_op->unlocked_ioctl(filp, FASTRPC_IOCTL_GETPERF,
	(unsigned long)perf);
	if (ret)
	return ret;
	err = get_user(u, &perf->numkeys);
	err \|= put_user(u, &perf32->numkeys);
	return err;
	}
	default:
	return -ENOIOCTLCMD;
	}
	}