/*
BNEP implementation for Linux Bluetooth stack ( BlueZ ) .
Copyright ( C ) 2001 - 2002 Inventel Systemes
Written 2001 - 2002 by
David Libault < david . libault @ inventel . fr >
Copyright ( C ) 2002 Maxim Krasnyansky < maxk @ qualcomm . com >
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation ;
THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS
OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS .
IN NO EVENT SHALL THE COPYRIGHT HOLDER ( S ) AND AUTHOR ( S ) BE LIABLE FOR ANY
CLAIM , OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES , OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE , DATA OR PROFITS , WHETHER IN AN
ACTION OF CONTRACT , NEGLIGENCE OR OTHER TORTIOUS ACTION , ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE .
ALL LIABILITY , INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS ,
COPYRIGHTS , TRADEMARKS OR OTHER RIGHTS , RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED .
*/
#include <linux/compat.h>
#include <linux/export.h>
#include <linux/file.h>
#include "bnep.h"
static struct bt_sock_list bnep_sk_list = {
.lock = __RW_LOCK_UNLOCKED(bnep_sk_list.lock)
};
static int bnep_sock_release(struct socket *sock)
{
struct sock *sk = sock->sk;
BT_DBG("sock %p sk %p" , sock, sk);
if (!sk)
return 0 ;
bt_sock_unlink(&bnep_sk_list, sk);
sock_orphan(sk);
sock_put(sk);
return 0 ;
}
static int do_bnep_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
{
struct bnep_connlist_req cl;
struct bnep_connadd_req ca;
struct bnep_conndel_req cd;
struct bnep_conninfo ci;
struct socket *nsock;
__u32 supp_feat = BIT(BNEP_SETUP_RESPONSE);
int err;
BT_DBG("cmd %x arg %p" , cmd, argp);
switch (cmd) {
case BNEPCONNADD:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user(&ca, argp, sizeof (ca)))
return -EFAULT;
nsock = sockfd_lookup(ca.sock, &err);
if (!nsock)
return err;
if (nsock->sk->sk_state != BT_CONNECTED) {
sockfd_put(nsock);
return -EBADFD;
}
ca.device[sizeof (ca.device)-1 ] = 0 ;
err = bnep_add_connection(&ca, nsock);
if (!err) {
if (copy_to_user(argp, &ca, sizeof (ca)))
err = -EFAULT;
} else
sockfd_put(nsock);
return err;
case BNEPCONNDEL:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user(&cd, argp, sizeof (cd)))
return -EFAULT;
return bnep_del_connection(&cd);
case BNEPGETCONNLIST:
if (copy_from_user(&cl, argp, sizeof (cl)))
return -EFAULT;
if (cl.cnum <= 0 )
return -EINVAL;
err = bnep_get_connlist(&cl);
if (!err && copy_to_user(argp, &cl, sizeof (cl)))
return -EFAULT;
return err;
case BNEPGETCONNINFO:
if (copy_from_user(&ci, argp, sizeof (ci)))
return -EFAULT;
err = bnep_get_conninfo(&ci);
if (!err && copy_to_user(argp, &ci, sizeof (ci)))
return -EFAULT;
return err;
case BNEPGETSUPPFEAT:
if (copy_to_user(argp, &supp_feat, sizeof (supp_feat)))
return -EFAULT;
return 0 ;
default :
return -EINVAL;
}
return 0 ;
}
static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
return do_bnep_sock_ioctl(sock, cmd, (void __user *)arg);
}
#ifdef CONFIG_COMPAT
static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
void __user *argp = compat_ptr(arg);
if (cmd == BNEPGETCONNLIST) {
struct bnep_connlist_req cl;
unsigned __user *p = argp;
u32 uci;
int err;
if (get_user(cl.cnum, p) || get_user(uci, p + 1 ))
return -EFAULT;
cl.ci = compat_ptr(uci);
if (cl.cnum <= 0 )
return -EINVAL;
err = bnep_get_connlist(&cl);
if (!err && put_user(cl.cnum, p))
err = -EFAULT;
return err;
}
return do_bnep_sock_ioctl(sock, cmd, argp);
}
#endif
static const struct proto_ops bnep_sock_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.release = bnep_sock_release,
.ioctl = bnep_sock_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = bnep_sock_compat_ioctl,
#endif
.bind = sock_no_bind,
.getname = sock_no_getname,
.sendmsg = sock_no_sendmsg,
.recvmsg = sock_no_recvmsg,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.mmap = sock_no_mmap
};
static struct proto bnep_proto = {
.name = "BNEP" ,
.owner = THIS_MODULE,
.obj_size = sizeof (struct bt_sock)
};
static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
struct sock *sk;
BT_DBG("sock %p" , sock);
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
sk = bt_sock_alloc(net, sock, &bnep_proto, protocol, GFP_ATOMIC, kern);
if (!sk)
return -ENOMEM;
sock->ops = &bnep_sock_ops;
sock->state = SS_UNCONNECTED;
bt_sock_link(&bnep_sk_list, sk);
return 0 ;
}
static const struct net_proto_family bnep_sock_family_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.create = bnep_sock_create
};
int __init bnep_sock_init(void )
{
int err;
err = proto_register(&bnep_proto, 0 );
if (err < 0 )
return err;
err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops);
if (err < 0 ) {
BT_ERR("Can't register BNEP socket" );
goto error;
}
err = bt_procfs_init(&init_net, "bnep" , &bnep_sk_list, NULL);
if (err < 0 ) {
BT_ERR("Failed to create BNEP proc file" );
bt_sock_unregister(BTPROTO_BNEP);
goto error;
}
BT_INFO("BNEP socket layer initialized" );
return 0 ;
error:
proto_unregister(&bnep_proto);
return err;
}
void __exit bnep_sock_cleanup(void )
{
bt_procfs_cleanup(&init_net, "bnep" );
bt_sock_unregister(BTPROTO_BNEP);
proto_unregister(&bnep_proto);
}
Messung V0.5 in Prozent C=89 H=99 G=94
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-09-28)
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