1 files changed, 232 insertions, 0 deletions

diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
new file mode 100644
index 000000000000..fabb36d4666b
--- /dev/null
+++ b/net/bluetooth/hidp/sock.c
@@ -0,0 +1,232 @@
+/* 
+   HIDP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
+
+   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/config.h>
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <net/sock.h>
+
+#include "hidp.h"
+
+#ifndef CONFIG_BT_HIDP_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+static int hidp_sock_release(struct socket *sock)
+{
+        struct sock *sk = sock->sk;
+
+        BT_DBG("sock %p sk %p", sock, sk);
+
+        if (!sk)
+                return 0;
+
+        sock_orphan(sk);
+        sock_put(sk);
+
+        return 0;
+}
+
+static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+        void __user *argp = (void __user *) arg;
+        struct hidp_connadd_req ca;
+        struct hidp_conndel_req cd;
+        struct hidp_connlist_req cl;
+        struct hidp_conninfo ci;
+        struct socket *csock;
+        struct socket *isock;
+        int err;
+
+        BT_DBG("cmd %x arg %lx", cmd, arg);
+
+        switch (cmd) {
+        case HIDPCONNADD:
+                if (!capable(CAP_NET_ADMIN))
+                        return -EACCES;
+
+                if (copy_from_user(&ca, argp, sizeof(ca)))
+                        return -EFAULT;
+
+                csock = sockfd_lookup(ca.ctrl_sock, &err);
+                if (!csock)
+                        return err;
+
+                isock = sockfd_lookup(ca.intr_sock, &err);
+                if (!isock) {
+                        fput(csock->file);
+                        return err;
+                }
+
+                if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
+                        fput(csock->file);
+                        fput(isock->file);
+                        return -EBADFD;
+                }
+
+                err = hidp_add_connection(&ca, csock, isock);
+                if (!err) {
+                        if (copy_to_user(argp, &ca, sizeof(ca)))
+                                err = -EFAULT;
+                } else {
+                        fput(csock->file);
+                        fput(isock->file);
+                }
+
+                return err;
+
+        case HIDPCONNDEL:
+                if (!capable(CAP_NET_ADMIN))
+                        return -EACCES;
+
+                if (copy_from_user(&cd, argp, sizeof(cd)))
+                        return -EFAULT;
+
+                return hidp_del_connection(&cd);
+
+        case HIDPGETCONNLIST:
+                if (copy_from_user(&cl, argp, sizeof(cl)))
+                        return -EFAULT;
+
+                if (cl.cnum <= 0)
+                        return -EINVAL;
+
+                err = hidp_get_connlist(&cl);
+                if (!err && copy_to_user(argp, &cl, sizeof(cl)))
+                        return -EFAULT;
+
+                return err;
+
+        case HIDPGETCONNINFO:
+                if (copy_from_user(&ci, argp, sizeof(ci)))
+                        return -EFAULT;
+
+                err = hidp_get_conninfo(&ci);
+                if (!err && copy_to_user(argp, &ci, sizeof(ci)))
+                        return -EFAULT;
+
+                return err;
+        }
+
+        return -EINVAL;
+}
+
+static struct proto_ops hidp_sock_ops = {
+        .family         = PF_BLUETOOTH,
+        .owner          = THIS_MODULE,
+        .release        = hidp_sock_release,
+        .ioctl          = hidp_sock_ioctl,
+        .bind           = sock_no_bind,
+        .getname        = sock_no_getname,
+        .sendmsg        = sock_no_sendmsg,
+        .recvmsg        = sock_no_recvmsg,
+        .poll           = sock_no_poll,
+        .listen         = sock_no_listen,
+        .shutdown       = sock_no_shutdown,
+        .setsockopt     = sock_no_setsockopt,
+        .getsockopt     = sock_no_getsockopt,
+        .connect        = sock_no_connect,
+        .socketpair     = sock_no_socketpair,
+        .accept         = sock_no_accept,
+        .mmap           = sock_no_mmap
+};
+
+static struct proto hidp_proto = {
+        .name           = "HIDP",
+        .owner          = THIS_MODULE,
+        .obj_size       = sizeof(struct bt_sock)
+};
+
+static int hidp_sock_create(struct socket *sock, int protocol)
+{
+        struct sock *sk;
+
+        BT_DBG("sock %p", sock);
+
+        if (sock->type != SOCK_RAW)
+                return -ESOCKTNOSUPPORT;
+
+        sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &hidp_proto, 1);
+        if (!sk)
+                return -ENOMEM;
+
+        sock_init_data(sock, sk);
+
+        sock->ops = &hidp_sock_ops;
+
+        sock->state = SS_UNCONNECTED;
+
+        sock_reset_flag(sk, SOCK_ZAPPED);
+
+        sk->sk_protocol = protocol;
+        sk->sk_state    = BT_OPEN;
+
+        return 0;
+}
+
+static struct net_proto_family hidp_sock_family_ops = {
+        .family = PF_BLUETOOTH,
+        .owner  = THIS_MODULE,
+        .create = hidp_sock_create
+};
+
+int __init hidp_init_sockets(void)
+{
+        int err;
+
+        err = proto_register(&hidp_proto, 0);
+        if (err < 0)
+                return err;
+
+        err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
+        if (err < 0)
+                goto error;
+
+        return 0;
+
+error:
+        BT_ERR("Can't register HIDP socket");
+        proto_unregister(&hidp_proto);
+        return err;
+}
+
+void __exit hidp_cleanup_sockets(void)
+{
+        if (bt_sock_unregister(BTPROTO_HIDP) < 0)
+                BT_ERR("Can't unregister HIDP socket");
+
+        proto_unregister(&hidp_proto);
+}