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compat_ioctl: move hci_sock handlers into driver 

All these ioctl commands are compatible, so we can handle
them with a trivial wrapper in hci_sock.c and remove
the listing in fs/compat_ioctl.c.

A few of the commands pass integer arguments instead of
pointers, so for correctness skip the compat_ptr() conversion
here.

Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2019-03-14 14:10:33 +01:00
parent 7d60a7a6cd
commit 7a6038b300
2 changed files with 20 additions and 25 deletions
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24
fs/compat_ioctl.c
View File

@ -40,9 +40,6 @@
#include "internal.h"
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_sock.h>
#ifdef CONFIG_BLOCK
#include <linux/cdrom.h>
#include <linux/fd.h>
@ -646,27 +643,6 @@ COMPATIBLE_IOCTL(RNDADDENTROPY)
COMPATIBLE_IOCTL(RNDZAPENTCNT)
COMPATIBLE_IOCTL(RNDCLEARPOOL)
/* Bluetooth */
COMPATIBLE_IOCTL(HCIDEVUP)
COMPATIBLE_IOCTL(HCIDEVDOWN)
COMPATIBLE_IOCTL(HCIDEVRESET)
COMPATIBLE_IOCTL(HCIDEVRESTAT)
COMPATIBLE_IOCTL(HCIGETDEVLIST)
COMPATIBLE_IOCTL(HCIGETDEVINFO)
COMPATIBLE_IOCTL(HCIGETCONNLIST)
COMPATIBLE_IOCTL(HCIGETCONNINFO)
COMPATIBLE_IOCTL(HCIGETAUTHINFO)
COMPATIBLE_IOCTL(HCISETRAW)
COMPATIBLE_IOCTL(HCISETSCAN)
COMPATIBLE_IOCTL(HCISETAUTH)
COMPATIBLE_IOCTL(HCISETENCRYPT)
COMPATIBLE_IOCTL(HCISETPTYPE)
COMPATIBLE_IOCTL(HCISETLINKPOL)
COMPATIBLE_IOCTL(HCISETLINKMODE)
COMPATIBLE_IOCTL(HCISETACLMTU)
COMPATIBLE_IOCTL(HCISETSCOMTU)
COMPATIBLE_IOCTL(HCIBLOCKADDR)
COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
COMPATIBLE_IOCTL(HCIINQUIRY)
COMPATIBLE_IOCTL(HCIUARTSETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETDEVICE)

21
net/bluetooth/hci_sock.c
View File

@ -23,7 +23,7 @@
*/
/* Bluetooth HCI sockets. */
#include <linux/compat.h>
#include <linux/export.h>
#include <linux/utsname.h>
#include <linux/sched.h>
@ -1054,6 +1054,22 @@ done:
return err;
}
#ifdef CONFIG_COMPAT
static int hci_sock_compat_ioctl(struct socket *sock, unsigned int cmd,
unsigned long arg)
{
switch (cmd) {
case HCIDEVUP:
case HCIDEVDOWN:
case HCIDEVRESET:
case HCIDEVRESTAT:
return hci_sock_ioctl(sock, cmd, arg);
}
return hci_sock_ioctl(sock, cmd, (unsigned long)compat_ptr(arg));
}
#endif
static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
int addr_len)
{
@ -1974,6 +1990,9 @@ static const struct proto_ops hci_sock_ops = {
.sendmsg = hci_sock_sendmsg,
.recvmsg = hci_sock_recvmsg,
.ioctl = hci_sock_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = hci_sock_compat_ioctl,
#endif
.poll = datagram_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,