1577 lines
40 KiB
C
1577 lines
40 KiB
C
/*
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* ng_btsocket_hci_raw.c
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*/
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/*-
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* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: ng_btsocket_hci_raw.c,v 1.14 2003/09/14 23:29:06 max Exp $
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bitstring.h>
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#include <sys/domain.h>
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#include <sys/endian.h>
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#include <sys/errno.h>
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#include <sys/filedesc.h>
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#include <sys/ioccom.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/mutex.h>
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#include <sys/protosw.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <sys/taskqueue.h>
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#include <netgraph/ng_message.h>
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#include <netgraph/netgraph.h>
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#include <netgraph/bluetooth/include/ng_bluetooth.h>
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#include <netgraph/bluetooth/include/ng_hci.h>
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#include <netgraph/bluetooth/include/ng_l2cap.h>
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#include <netgraph/bluetooth/include/ng_btsocket.h>
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#include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
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/* MALLOC define */
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#ifdef NG_SEPARATE_MALLOC
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MALLOC_DEFINE(M_NETGRAPH_BTSOCKET_HCI_RAW, "netgraph_btsocks_hci_raw",
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"Netgraph Bluetooth raw HCI sockets");
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#else
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#define M_NETGRAPH_BTSOCKET_HCI_RAW M_NETGRAPH
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#endif /* NG_SEPARATE_MALLOC */
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/* Netgraph node methods */
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static ng_constructor_t ng_btsocket_hci_raw_node_constructor;
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static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg;
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static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown;
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static ng_newhook_t ng_btsocket_hci_raw_node_newhook;
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static ng_connect_t ng_btsocket_hci_raw_node_connect;
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static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata;
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static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect;
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static void ng_btsocket_hci_raw_input (void *, int);
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static void ng_btsocket_hci_raw_output(node_p, hook_p, void *, int);
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static void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p,
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struct mbuf **,
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struct mbuf *);
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static int ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p,
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struct mbuf *, int);
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#define ng_btsocket_hci_raw_wakeup_input_task() \
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taskqueue_enqueue(taskqueue_swi, &ng_btsocket_hci_raw_task)
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/* Security filter */
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struct ng_btsocket_hci_raw_sec_filter {
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bitstr_t bit_decl(events, 0xff);
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bitstr_t bit_decl(commands[0x3f], 0x3ff);
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};
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/* Netgraph type descriptor */
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static struct ng_type typestruct = {
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.version = NG_ABI_VERSION,
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.name = NG_BTSOCKET_HCI_RAW_NODE_TYPE,
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.constructor = ng_btsocket_hci_raw_node_constructor,
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.rcvmsg = ng_btsocket_hci_raw_node_rcvmsg,
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.shutdown = ng_btsocket_hci_raw_node_shutdown,
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.newhook = ng_btsocket_hci_raw_node_newhook,
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.connect = ng_btsocket_hci_raw_node_connect,
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.rcvdata = ng_btsocket_hci_raw_node_rcvdata,
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.disconnect = ng_btsocket_hci_raw_node_disconnect,
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};
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/* Globals */
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extern int ifqmaxlen;
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static u_int32_t ng_btsocket_hci_raw_debug_level;
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static u_int32_t ng_btsocket_hci_raw_ioctl_timeout;
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static node_p ng_btsocket_hci_raw_node;
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static struct ng_bt_itemq ng_btsocket_hci_raw_queue;
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static struct mtx ng_btsocket_hci_raw_queue_mtx;
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static struct task ng_btsocket_hci_raw_task;
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static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets;
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static struct mtx ng_btsocket_hci_raw_sockets_mtx;
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static u_int32_t ng_btsocket_hci_raw_token;
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static struct mtx ng_btsocket_hci_raw_token_mtx;
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static struct ng_btsocket_hci_raw_sec_filter *ng_btsocket_hci_raw_sec_filter;
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/* Sysctl tree */
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SYSCTL_DECL(_net_bluetooth_hci_sockets);
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SYSCTL_NODE(_net_bluetooth_hci_sockets, OID_AUTO, raw, CTLFLAG_RW,
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0, "Bluetooth raw HCI sockets family");
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SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, debug_level, CTLFLAG_RW,
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&ng_btsocket_hci_raw_debug_level, NG_BTSOCKET_WARN_LEVEL,
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"Bluetooth raw HCI sockets debug level");
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SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, ioctl_timeout, CTLFLAG_RW,
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&ng_btsocket_hci_raw_ioctl_timeout, 5,
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"Bluetooth raw HCI sockets ioctl timeout");
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SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_len, CTLFLAG_RD,
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&ng_btsocket_hci_raw_queue.len, 0,
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"Bluetooth raw HCI sockets input queue length");
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SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_maxlen, CTLFLAG_RD,
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&ng_btsocket_hci_raw_queue.maxlen, 0,
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"Bluetooth raw HCI sockets input queue max. length");
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SYSCTL_INT(_net_bluetooth_hci_sockets_raw, OID_AUTO, queue_drops, CTLFLAG_RD,
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&ng_btsocket_hci_raw_queue.drops, 0,
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"Bluetooth raw HCI sockets input queue drops");
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/* Debug */
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#define NG_BTSOCKET_HCI_RAW_INFO \
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if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_INFO_LEVEL) \
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printf
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#define NG_BTSOCKET_HCI_RAW_WARN \
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if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \
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printf
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#define NG_BTSOCKET_HCI_RAW_ERR \
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if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \
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printf
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#define NG_BTSOCKET_HCI_RAW_ALERT \
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if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \
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printf
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/****************************************************************************
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****************************************************************************
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** Netgraph specific
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****************************************************************************
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****************************************************************************/
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/*
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* Netgraph node constructor. Do not allow to create node of this type.
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*/
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static int
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ng_btsocket_hci_raw_node_constructor(node_p node)
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{
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return (EINVAL);
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} /* ng_btsocket_hci_raw_node_constructor */
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/*
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* Netgraph node destructor. Just let old node go and create new fresh one.
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*/
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static int
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ng_btsocket_hci_raw_node_shutdown(node_p node)
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{
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int error = 0;
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NG_NODE_UNREF(node);
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error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node);
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if (error != 0) {
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NG_BTSOCKET_HCI_RAW_ALERT(
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"%s: Could not create Netgraph node, error=%d\n", __func__, error);
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ng_btsocket_hci_raw_node = NULL;
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return (ENOMEM);
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}
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error = ng_name_node(ng_btsocket_hci_raw_node,
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NG_BTSOCKET_HCI_RAW_NODE_TYPE);
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if (error != 0) {
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NG_BTSOCKET_HCI_RAW_ALERT(
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"%s: Could not name Netgraph node, error=%d\n", __func__, error);
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NG_NODE_UNREF(ng_btsocket_hci_raw_node);
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ng_btsocket_hci_raw_node = NULL;
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return (EINVAL);
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}
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return (0);
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} /* ng_btsocket_hci_raw_node_shutdown */
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/*
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* Create new hook. Just say "yes"
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*/
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static int
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ng_btsocket_hci_raw_node_newhook(node_p node, hook_p hook, char const *name)
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{
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return (0);
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} /* ng_btsocket_hci_raw_node_newhook */
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/*
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* Connect hook. Just say "yes"
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*/
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static int
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ng_btsocket_hci_raw_node_connect(hook_p hook)
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{
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return (0);
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} /* ng_btsocket_hci_raw_node_connect */
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/*
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* Disconnect hook
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*/
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static int
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ng_btsocket_hci_raw_node_disconnect(hook_p hook)
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{
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return (0);
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} /* ng_btsocket_hci_raw_node_disconnect */
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/*
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* Receive control message.
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* Make sure it is a message from HCI node and it is a response.
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* Enqueue item and schedule input task.
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*/
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static int
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ng_btsocket_hci_raw_node_rcvmsg(node_p node, item_p item, hook_p lasthook)
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{
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struct ng_mesg *msg = NGI_MSG(item); /* item still has message */
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int error = 0;
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/*
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* Check for empty sockets list creates LOR when both sender and
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* receiver device are connected to the same host, so remove it
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* for now
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*/
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if (msg != NULL &&
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msg->header.typecookie == NGM_HCI_COOKIE &&
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msg->header.flags & NGF_RESP) {
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if (msg->header.token == 0) {
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NG_FREE_ITEM(item);
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return (0);
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}
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mtx_lock(&ng_btsocket_hci_raw_queue_mtx);
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if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) {
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NG_BTSOCKET_HCI_RAW_ERR(
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"%s: Input queue is full\n", __func__);
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NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue);
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NG_FREE_ITEM(item);
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error = ENOBUFS;
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} else {
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NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item);
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error = ng_btsocket_hci_raw_wakeup_input_task();
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}
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mtx_unlock(&ng_btsocket_hci_raw_queue_mtx);
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} else {
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NG_FREE_ITEM(item);
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error = EINVAL;
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}
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return (error);
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} /* ng_btsocket_hci_raw_node_rcvmsg */
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/*
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* Receive packet from the one of our hook.
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* Prepend every packet with sockaddr_hci and record sender's node name.
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* Enqueue item and schedule input task.
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*/
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static int
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ng_btsocket_hci_raw_node_rcvdata(hook_p hook, item_p item)
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{
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struct mbuf *nam = NULL;
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int error;
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/*
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* Check for empty sockets list creates LOR when both sender and
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* receiver device are connected to the same host, so remove it
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* for now
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*/
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MGET(nam, M_DONTWAIT, MT_SONAME);
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if (nam != NULL) {
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struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *);
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nam->m_len = sizeof(struct sockaddr_hci);
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sa->hci_len = sizeof(*sa);
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sa->hci_family = AF_BLUETOOTH;
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strlcpy(sa->hci_node, NG_PEER_NODE_NAME(hook),
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sizeof(sa->hci_node));
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NGI_GET_M(item, nam->m_next);
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NGI_M(item) = nam;
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mtx_lock(&ng_btsocket_hci_raw_queue_mtx);
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if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) {
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NG_BTSOCKET_HCI_RAW_ERR(
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"%s: Input queue is full\n", __func__);
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NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue);
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NG_FREE_ITEM(item);
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error = ENOBUFS;
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} else {
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NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item);
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error = ng_btsocket_hci_raw_wakeup_input_task();
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}
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mtx_unlock(&ng_btsocket_hci_raw_queue_mtx);
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} else {
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NG_BTSOCKET_HCI_RAW_ERR(
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"%s: Failed to allocate address mbuf\n", __func__);
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NG_FREE_ITEM(item);
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error = ENOBUFS;
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}
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return (error);
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} /* ng_btsocket_hci_raw_node_rcvdata */
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/****************************************************************************
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****************************************************************************
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** Sockets specific
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****************************************************************************
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****************************************************************************/
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/*
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* Get next token. We need token to avoid theoretical race where process
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* submits ioctl() message then interrupts ioctl() and re-submits another
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* ioctl() on the same socket *before* first ioctl() complete.
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*/
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static void
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ng_btsocket_hci_raw_get_token(u_int32_t *token)
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{
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mtx_lock(&ng_btsocket_hci_raw_token_mtx);
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if (++ ng_btsocket_hci_raw_token == 0)
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ng_btsocket_hci_raw_token = 1;
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*token = ng_btsocket_hci_raw_token;
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mtx_unlock(&ng_btsocket_hci_raw_token_mtx);
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} /* ng_btsocket_hci_raw_get_token */
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/*
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* Send Netgraph message to the node - do not expect reply
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*/
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static int
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ng_btsocket_hci_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen)
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{
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struct ng_mesg *msg = NULL;
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int error = 0;
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NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_NOWAIT);
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if (msg == NULL)
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return (ENOMEM);
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if (arg != NULL && arglen > 0)
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bcopy(arg, msg->data, arglen);
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NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0);
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return (error);
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} /* ng_btsocket_hci_raw_send_ngmsg */
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/*
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* Send Netgraph message to the node (no data) and wait for reply
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*/
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static int
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ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path,
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int cmd, void *rsp, int rsplen)
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{
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struct ng_mesg *msg = NULL;
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int error = 0;
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mtx_assert(&pcb->pcb_mtx, MA_OWNED);
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NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_NOWAIT);
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if (msg == NULL)
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return (ENOMEM);
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ng_btsocket_hci_raw_get_token(&msg->header.token);
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pcb->token = msg->header.token;
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pcb->msg = NULL;
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NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0);
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if (error != 0) {
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pcb->token = 0;
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return (error);
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}
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error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "hcictl",
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ng_btsocket_hci_raw_ioctl_timeout * hz);
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pcb->token = 0;
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if (error != 0)
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return (error);
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if (pcb->msg != NULL && pcb->msg->header.cmd == cmd)
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bcopy(pcb->msg->data, rsp, rsplen);
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else
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error = EINVAL;
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NG_FREE_MSG(pcb->msg); /* checks for != NULL */
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return (0);
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} /* ng_btsocket_hci_raw_send_sync_ngmsg */
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/*
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* Create control information for the packet
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*/
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static void
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ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl,
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struct mbuf *m)
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{
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int dir;
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struct timeval tv;
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mtx_assert(&pcb->pcb_mtx, MA_OWNED);
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if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) {
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dir = (m->m_flags & M_PROTO1)? 1 : 0;
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*ctl = sbcreatecontrol((caddr_t) &dir, sizeof(dir),
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SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW);
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if (*ctl != NULL)
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ctl = &((*ctl)->m_next);
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}
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if (pcb->so->so_options & SO_TIMESTAMP) {
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microtime(&tv);
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*ctl = sbcreatecontrol((caddr_t) &tv, sizeof(tv),
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SCM_TIMESTAMP, SOL_SOCKET);
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if (*ctl != NULL)
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ctl = &((*ctl)->m_next);
|
|
}
|
|
} /* ng_btsocket_hci_raw_savctl */
|
|
|
|
/*
|
|
* Raw HCI sockets data input routine
|
|
*/
|
|
|
|
static void
|
|
ng_btsocket_hci_raw_data_input(struct mbuf *nam)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = NULL;
|
|
struct mbuf *m0 = NULL, *m = NULL;
|
|
struct sockaddr_hci *sa = NULL;
|
|
|
|
m0 = nam->m_next;
|
|
nam->m_next = NULL;
|
|
|
|
KASSERT((nam->m_type == MT_SONAME),
|
|
("%s: m_type=%d\n", __func__, nam->m_type));
|
|
KASSERT((m0->m_flags & M_PKTHDR),
|
|
("%s: m_flags=%#x\n", __func__, m0->m_flags));
|
|
|
|
sa = mtod(nam, struct sockaddr_hci *);
|
|
|
|
mtx_lock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) {
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
/*
|
|
* If socket was bound then check address and
|
|
* make sure it matches.
|
|
*/
|
|
|
|
if (pcb->addr.hci_node[0] != 0 &&
|
|
strcmp(sa->hci_node, pcb->addr.hci_node) != 0)
|
|
goto next;
|
|
|
|
/*
|
|
* Check packet against filters
|
|
* XXX do we have to call m_pullup() here?
|
|
*/
|
|
|
|
if (ng_btsocket_hci_raw_filter(pcb, m0, 1) != 0)
|
|
goto next;
|
|
|
|
/*
|
|
* Make a copy of the packet, append to the socket's
|
|
* receive queue and wakeup socket. sbappendaddr()
|
|
* will check if socket has enough buffer space.
|
|
*/
|
|
|
|
m = m_dup(m0, M_DONTWAIT);
|
|
if (m != NULL) {
|
|
struct mbuf *ctl = NULL;
|
|
|
|
ng_btsocket_hci_raw_savctl(pcb, &ctl, m);
|
|
|
|
if (sbappendaddr(&pcb->so->so_rcv,
|
|
(struct sockaddr *) sa, m, ctl))
|
|
sorwakeup(pcb->so);
|
|
else {
|
|
NG_BTSOCKET_HCI_RAW_INFO(
|
|
"%s: sbappendaddr() failed\n", __func__);
|
|
|
|
NG_FREE_M(m);
|
|
NG_FREE_M(ctl);
|
|
}
|
|
}
|
|
next:
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
}
|
|
|
|
mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
NG_FREE_M(nam);
|
|
NG_FREE_M(m0);
|
|
} /* ng_btsocket_hci_raw_data_input */
|
|
|
|
/*
|
|
* Raw HCI sockets message input routine
|
|
*/
|
|
|
|
static void
|
|
ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = NULL;
|
|
|
|
mtx_lock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) {
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
if (msg->header.token == pcb->token) {
|
|
pcb->msg = msg;
|
|
wakeup(&pcb->msg);
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
return;
|
|
}
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
}
|
|
|
|
mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
NG_FREE_MSG(msg); /* checks for != NULL */
|
|
} /* ng_btsocket_hci_raw_msg_input */
|
|
|
|
/*
|
|
* Raw HCI sockets input routines
|
|
*/
|
|
|
|
static void
|
|
ng_btsocket_hci_raw_input(void *context, int pending)
|
|
{
|
|
item_p item = NULL;
|
|
|
|
for (;;) {
|
|
mtx_lock(&ng_btsocket_hci_raw_queue_mtx);
|
|
NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item);
|
|
mtx_unlock(&ng_btsocket_hci_raw_queue_mtx);
|
|
|
|
if (item == NULL)
|
|
break;
|
|
|
|
switch(item->el_flags & NGQF_TYPE) {
|
|
case NGQF_DATA: {
|
|
struct mbuf *m = NULL;
|
|
|
|
NGI_GET_M(item, m);
|
|
ng_btsocket_hci_raw_data_input(m);
|
|
} break;
|
|
|
|
case NGQF_MESG: {
|
|
struct ng_mesg *msg = NULL;
|
|
|
|
NGI_GET_MSG(item, msg);
|
|
ng_btsocket_hci_raw_msg_input(msg);
|
|
} break;
|
|
|
|
default:
|
|
KASSERT(0,
|
|
("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE)));
|
|
break;
|
|
}
|
|
|
|
NG_FREE_ITEM(item);
|
|
}
|
|
} /* ng_btsocket_hci_raw_input */
|
|
|
|
/*
|
|
* Raw HCI sockets output routine
|
|
*/
|
|
|
|
static void
|
|
ng_btsocket_hci_raw_output(node_p node, hook_p hook, void *arg1, int arg2)
|
|
{
|
|
struct mbuf *nam = (struct mbuf *) arg1, *m = NULL;
|
|
struct sockaddr_hci *sa = NULL;
|
|
int error;
|
|
|
|
m = nam->m_next;
|
|
nam->m_next = NULL;
|
|
|
|
KASSERT((nam->m_type == MT_SONAME),
|
|
("%s: m_type=%d\n", __func__, nam->m_type));
|
|
KASSERT((m->m_flags & M_PKTHDR),
|
|
("%s: m_flags=%#x\n", __func__, m->m_flags));
|
|
|
|
sa = mtod(nam, struct sockaddr_hci *);
|
|
|
|
/*
|
|
* Find downstream hook
|
|
* XXX For now access node hook list directly. Should be safe because
|
|
* we used ng_send_fn() and we should have exclusive lock on the node.
|
|
*/
|
|
|
|
LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) {
|
|
if (hook == NULL || NG_HOOK_NOT_VALID(hook) ||
|
|
NG_NODE_NOT_VALID(NG_PEER_NODE(hook)))
|
|
continue;
|
|
|
|
if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) {
|
|
NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */
|
|
break;
|
|
}
|
|
}
|
|
|
|
NG_FREE_M(nam); /* check for != NULL */
|
|
NG_FREE_M(m);
|
|
} /* ng_btsocket_hci_raw_output */
|
|
|
|
/*
|
|
* Check frame against security and socket filters.
|
|
* d (direction bit) == 1 means incoming frame.
|
|
*/
|
|
|
|
static int
|
|
ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf *m, int d)
|
|
{
|
|
int type, event, opcode;
|
|
|
|
mtx_assert(&pcb->pcb_mtx, MA_OWNED);
|
|
|
|
switch ((type = *mtod(m, u_int8_t *))) {
|
|
case NG_HCI_CMD_PKT:
|
|
if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) {
|
|
opcode = le16toh(mtod(m, ng_hci_cmd_pkt_t *)->opcode);
|
|
|
|
if (!bit_test(
|
|
ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF(opcode) - 1],
|
|
NG_HCI_OCF(opcode) - 1))
|
|
return (EPERM);
|
|
}
|
|
|
|
if (d && !bit_test(pcb->filter.packet_mask, NG_HCI_CMD_PKT - 1))
|
|
return (EPERM);
|
|
break;
|
|
|
|
case NG_HCI_ACL_DATA_PKT:
|
|
case NG_HCI_SCO_DATA_PKT:
|
|
if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) ||
|
|
!bit_test(pcb->filter.packet_mask, type - 1) ||
|
|
!d)
|
|
return (EPERM);
|
|
break;
|
|
|
|
case NG_HCI_EVENT_PKT:
|
|
if (!d)
|
|
return (EINVAL);
|
|
|
|
event = mtod(m, ng_hci_event_pkt_t *)->event - 1;
|
|
|
|
if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED))
|
|
if (!bit_test(ng_btsocket_hci_raw_sec_filter->events, event))
|
|
return (EPERM);
|
|
|
|
if (!bit_test(pcb->filter.event_mask, event))
|
|
return (EPERM);
|
|
break;
|
|
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_filter */
|
|
|
|
/*
|
|
* Initialize everything
|
|
*/
|
|
|
|
void
|
|
ng_btsocket_hci_raw_init(void)
|
|
{
|
|
bitstr_t *f = NULL;
|
|
int error = 0;
|
|
|
|
ng_btsocket_hci_raw_node = NULL;
|
|
ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL;
|
|
ng_btsocket_hci_raw_ioctl_timeout = 5;
|
|
|
|
/* Register Netgraph node type */
|
|
error = ng_newtype(&typestruct);
|
|
if (error != 0) {
|
|
NG_BTSOCKET_HCI_RAW_ALERT(
|
|
"%s: Could not register Netgraph node type, error=%d\n", __func__, error);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Create Netgrapg node */
|
|
error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node);
|
|
if (error != 0) {
|
|
NG_BTSOCKET_HCI_RAW_ALERT(
|
|
"%s: Could not create Netgraph node, error=%d\n", __func__, error);
|
|
|
|
ng_btsocket_hci_raw_node = NULL;
|
|
|
|
return;
|
|
}
|
|
|
|
error = ng_name_node(ng_btsocket_hci_raw_node,
|
|
NG_BTSOCKET_HCI_RAW_NODE_TYPE);
|
|
if (error != 0) {
|
|
NG_BTSOCKET_HCI_RAW_ALERT(
|
|
"%s: Could not name Netgraph node, error=%d\n", __func__, error);
|
|
|
|
NG_NODE_UNREF(ng_btsocket_hci_raw_node);
|
|
ng_btsocket_hci_raw_node = NULL;
|
|
|
|
return;
|
|
}
|
|
|
|
/* Create input queue */
|
|
NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen);
|
|
mtx_init(&ng_btsocket_hci_raw_queue_mtx,
|
|
"btsocks_hci_raw_queue_mtx", NULL, MTX_DEF);
|
|
TASK_INIT(&ng_btsocket_hci_raw_task, 0,
|
|
ng_btsocket_hci_raw_input, NULL);
|
|
|
|
/* Create list of sockets */
|
|
LIST_INIT(&ng_btsocket_hci_raw_sockets);
|
|
mtx_init(&ng_btsocket_hci_raw_sockets_mtx,
|
|
"btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF);
|
|
|
|
/* Tokens */
|
|
ng_btsocket_hci_raw_token = 0;
|
|
mtx_init(&ng_btsocket_hci_raw_token_mtx,
|
|
"btsocks_hci_raw_token_mtx", NULL, MTX_DEF);
|
|
|
|
/*
|
|
* Security filter
|
|
* XXX never FREE()ed
|
|
*/
|
|
|
|
ng_btsocket_hci_raw_sec_filter = NULL;
|
|
|
|
MALLOC(ng_btsocket_hci_raw_sec_filter,
|
|
struct ng_btsocket_hci_raw_sec_filter *,
|
|
sizeof(struct ng_btsocket_hci_raw_sec_filter),
|
|
M_NETGRAPH_BTSOCKET_HCI_RAW, M_NOWAIT|M_ZERO);
|
|
if (ng_btsocket_hci_raw_sec_filter == NULL) {
|
|
printf("%s: Could not allocate security filter!\n", __func__);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* XXX How paranoid can we get?
|
|
*
|
|
* Initialize security filter. If bit is set in the mask then
|
|
* unprivileged socket is allowed to send (receive) this command
|
|
* (event).
|
|
*/
|
|
|
|
/* Enable all events */
|
|
memset(&ng_btsocket_hci_raw_sec_filter->events, 0xff,
|
|
sizeof(ng_btsocket_hci_raw_sec_filter->events)/
|
|
sizeof(ng_btsocket_hci_raw_sec_filter->events[0]));
|
|
|
|
/* Disable some critical events */
|
|
f = ng_btsocket_hci_raw_sec_filter->events;
|
|
bit_clear(f, NG_HCI_EVENT_RETURN_LINK_KEYS - 1);
|
|
bit_clear(f, NG_HCI_EVENT_LINK_KEY_NOTIFICATION - 1);
|
|
bit_clear(f, NG_HCI_EVENT_VENDOR - 1);
|
|
|
|
/* Commands - Link control */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_CONTROL-1];
|
|
bit_set(f, NG_HCI_OCF_INQUIRY - 1);
|
|
bit_set(f, NG_HCI_OCF_INQUIRY_CANCEL - 1);
|
|
bit_set(f, NG_HCI_OCF_PERIODIC_INQUIRY - 1);
|
|
bit_set(f, NG_HCI_OCF_EXIT_PERIODIC_INQUIRY - 1);
|
|
bit_set(f, NG_HCI_OCF_REMOTE_NAME_REQ - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_REMOTE_FEATURES - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_REMOTE_VER_INFO - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_CLOCK_OFFSET - 1);
|
|
|
|
/* Commands - Link policy */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_POLICY-1];
|
|
bit_set(f, NG_HCI_OCF_ROLE_DISCOVERY - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_LINK_POLICY_SETTINGS - 1);
|
|
|
|
/* Commands - Host controller and baseband */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_HC_BASEBAND-1];
|
|
bit_set(f, NG_HCI_OCF_READ_PIN_TYPE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_LOCAL_NAME - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_CON_ACCEPT_TIMO - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_PAGE_TIMO - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_SCAN_ENABLE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_AUTH_ENABLE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_ENCRYPTION_MODE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_UNIT_CLASS - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_VOICE_SETTINGS - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_AUTO_FLUSH_TIMO - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_XMIT_LEVEL - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_SCO_FLOW_CONTROL - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_SUPPORTED_IAC_NUM - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_IAC_LAP - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_PERIOD - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN - 1);
|
|
|
|
/* Commands - Informational */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_INFO - 1];
|
|
bit_set(f, NG_HCI_OCF_READ_LOCAL_VER - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_LOCAL_FEATURES - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_BUFFER_SIZE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_COUNTRY_CODE - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_BDADDR - 1);
|
|
|
|
/* Commands - Status */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_STATUS - 1];
|
|
bit_set(f, NG_HCI_OCF_READ_FAILED_CONTACT_CNTR - 1);
|
|
bit_set(f, NG_HCI_OCF_GET_LINK_QUALITY - 1);
|
|
bit_set(f, NG_HCI_OCF_READ_RSSI - 1);
|
|
|
|
/* Commands - Testing */
|
|
f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_TESTING - 1];
|
|
bit_set(f, NG_HCI_OCF_READ_LOOPBACK_MODE - 1);
|
|
} /* ng_btsocket_hci_raw_init */
|
|
|
|
/*
|
|
* Abort connection on socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_abort(struct socket *so)
|
|
{
|
|
return (ng_btsocket_hci_raw_detach(so));
|
|
} /* ng_btsocket_hci_raw_abort */
|
|
|
|
/*
|
|
* Create new raw HCI socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_attach(struct socket *so, int proto, struct thread *td)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
int error = 0;
|
|
|
|
if (pcb != NULL)
|
|
return (EISCONN);
|
|
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EPROTONOSUPPORT);
|
|
if (proto != BLUETOOTH_PROTO_HCI)
|
|
return (EPROTONOSUPPORT);
|
|
if (so->so_type != SOCK_RAW)
|
|
return (ESOCKTNOSUPPORT);
|
|
|
|
error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE,
|
|
NG_BTSOCKET_HCI_RAW_RECVSPACE);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
MALLOC(pcb, ng_btsocket_hci_raw_pcb_p, sizeof(*pcb),
|
|
M_NETGRAPH_BTSOCKET_HCI_RAW, M_NOWAIT|M_ZERO);
|
|
if (pcb == NULL)
|
|
return (ENOMEM);
|
|
|
|
so->so_pcb = (caddr_t) pcb;
|
|
pcb->so = so;
|
|
|
|
if (suser(td) == 0)
|
|
pcb->flags |= NG_BTSOCKET_HCI_RAW_PRIVILEGED;
|
|
|
|
/*
|
|
* Set default socket filter. By default socket only accepts HCI
|
|
* Command_Complete and Command_Status event packets.
|
|
*/
|
|
|
|
bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1);
|
|
bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1);
|
|
|
|
mtx_init(&pcb->pcb_mtx, "btsocks_hci_raw_pcb_mtx", NULL, MTX_DEF);
|
|
|
|
mtx_lock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next);
|
|
mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_attach */
|
|
|
|
/*
|
|
* Bind raw HCI socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_bind(struct socket *so, struct sockaddr *nam,
|
|
struct thread *td)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
struct sockaddr_hci *sa = (struct sockaddr_hci *) nam;
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
if (sa == NULL)
|
|
return (EINVAL);
|
|
if (sa->hci_family != AF_BLUETOOTH)
|
|
return (EAFNOSUPPORT);
|
|
if (sa->hci_len != sizeof(*sa))
|
|
return (EINVAL);
|
|
if (sa->hci_node[0] == 0)
|
|
return (EINVAL);
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
bcopy(sa, &pcb->addr, sizeof(pcb->addr));
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_bind */
|
|
|
|
/*
|
|
* Connect raw HCI socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_connect(struct socket *so, struct sockaddr *nam,
|
|
struct thread *td)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
struct sockaddr_hci *sa = (struct sockaddr_hci *) nam;
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
if (sa == NULL)
|
|
return (EINVAL);
|
|
if (sa->hci_family != AF_BLUETOOTH)
|
|
return (EAFNOSUPPORT);
|
|
if (sa->hci_len != sizeof(*sa))
|
|
return (EINVAL);
|
|
if (sa->hci_node[0] == 0)
|
|
return (EDESTADDRREQ);
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
return (EADDRNOTAVAIL);
|
|
}
|
|
|
|
soisconnected(so);
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_connect */
|
|
|
|
/*
|
|
* Process ioctl on socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_control(struct socket *so, u_long cmd, caddr_t data,
|
|
struct ifnet *ifp, struct thread *td)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
char path[NG_NODESIZ + 1];
|
|
struct ng_mesg *msg = NULL;
|
|
int error = 0;
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
/* Check if we have device name */
|
|
if (pcb->addr.hci_node[0] == 0) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
return (EHOSTUNREACH);
|
|
}
|
|
|
|
/* Check if we have pending ioctl() */
|
|
if (pcb->token != 0) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
return (EBUSY);
|
|
}
|
|
|
|
snprintf(path, sizeof(path), "%s:", pcb->addr.hci_node);
|
|
|
|
switch (cmd) {
|
|
case SIOC_HCI_RAW_NODE_GET_STATE: {
|
|
struct ng_btsocket_hci_raw_node_state *p =
|
|
(struct ng_btsocket_hci_raw_node_state *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_STATE,
|
|
&p->state, sizeof(p->state));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_INIT:
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_INIT, NULL, 0);
|
|
else
|
|
error = EPERM;
|
|
break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_DEBUG: {
|
|
struct ng_btsocket_hci_raw_node_debug *p =
|
|
(struct ng_btsocket_hci_raw_node_debug *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_DEBUG,
|
|
&p->debug, sizeof(p->debug));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_SET_DEBUG: {
|
|
struct ng_btsocket_hci_raw_node_debug *p =
|
|
(struct ng_btsocket_hci_raw_node_debug *) data;
|
|
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_SET_DEBUG, &p->debug,
|
|
sizeof(p->debug));
|
|
else
|
|
error = EPERM;
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_BUFFER: {
|
|
struct ng_btsocket_hci_raw_node_buffer *p =
|
|
(struct ng_btsocket_hci_raw_node_buffer *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_BUFFER,
|
|
&p->buffer, sizeof(p->buffer));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_BDADDR: {
|
|
struct ng_btsocket_hci_raw_node_bdaddr *p =
|
|
(struct ng_btsocket_hci_raw_node_bdaddr *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_BDADDR,
|
|
&p->bdaddr, sizeof(p->bdaddr));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_FEATURES: {
|
|
struct ng_btsocket_hci_raw_node_features *p =
|
|
(struct ng_btsocket_hci_raw_node_features *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_FEATURES,
|
|
&p->features, sizeof(p->features));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_STAT: {
|
|
struct ng_btsocket_hci_raw_node_stat *p =
|
|
(struct ng_btsocket_hci_raw_node_stat *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_STAT,
|
|
&p->stat, sizeof(p->stat));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_RESET_STAT:
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_RESET_STAT, NULL, 0);
|
|
else
|
|
error = EPERM;
|
|
break;
|
|
|
|
case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE:
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE,
|
|
NULL, 0);
|
|
else
|
|
error = EPERM;
|
|
break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: {
|
|
struct ng_btsocket_hci_raw_node_neighbor_cache *p =
|
|
(struct ng_btsocket_hci_raw_node_neighbor_cache *) data;
|
|
ng_hci_node_get_neighbor_cache_ep *p1 = NULL;
|
|
ng_hci_node_neighbor_cache_entry_ep *p2 = NULL;
|
|
|
|
if (p->num_entries <= 0 ||
|
|
p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM ||
|
|
p->entries == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
NG_MKMESSAGE(msg, NGM_HCI_COOKIE,
|
|
NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, M_NOWAIT);
|
|
if (msg == NULL) {
|
|
error = ENOMEM;
|
|
break;
|
|
}
|
|
ng_btsocket_hci_raw_get_token(&msg->header.token);
|
|
pcb->token = msg->header.token;
|
|
pcb->msg = NULL;
|
|
|
|
NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0);
|
|
if (error != 0) {
|
|
pcb->token = 0;
|
|
break;
|
|
}
|
|
|
|
error = msleep(&pcb->msg, &pcb->pcb_mtx,
|
|
PZERO|PCATCH, "hcictl",
|
|
ng_btsocket_hci_raw_ioctl_timeout * hz);
|
|
pcb->token = 0;
|
|
|
|
if (error != 0)
|
|
break;
|
|
|
|
if (pcb->msg != NULL &&
|
|
pcb->msg->header.cmd == NGM_HCI_NODE_GET_NEIGHBOR_CACHE) {
|
|
/* Return data back to user space */
|
|
p1 = (ng_hci_node_get_neighbor_cache_ep *)
|
|
(pcb->msg->data);
|
|
p2 = (ng_hci_node_neighbor_cache_entry_ep *)
|
|
(p1 + 1);
|
|
|
|
p->num_entries = min(p->num_entries, p1->num_entries);
|
|
if (p->num_entries > 0)
|
|
error = copyout((caddr_t) p2,
|
|
(caddr_t) p->entries,
|
|
p->num_entries * sizeof(*p2));
|
|
} else
|
|
error = EINVAL;
|
|
|
|
NG_FREE_MSG(pcb->msg); /* checks for != NULL */
|
|
}break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_CON_LIST: {
|
|
struct ng_btsocket_hci_raw_con_list *p =
|
|
(struct ng_btsocket_hci_raw_con_list *) data;
|
|
ng_hci_node_con_list_ep *p1 = NULL;
|
|
ng_hci_node_con_ep *p2 = NULL;
|
|
|
|
if (p->num_connections == 0 ||
|
|
p->num_connections > NG_HCI_MAX_CON_NUM ||
|
|
p->connections == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST,
|
|
0, M_NOWAIT);
|
|
if (msg == NULL) {
|
|
error = ENOMEM;
|
|
break;
|
|
}
|
|
ng_btsocket_hci_raw_get_token(&msg->header.token);
|
|
pcb->token = msg->header.token;
|
|
pcb->msg = NULL;
|
|
|
|
NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0);
|
|
if (error != 0) {
|
|
pcb->token = 0;
|
|
break;
|
|
}
|
|
|
|
error = msleep(&pcb->msg, &pcb->pcb_mtx,
|
|
PZERO|PCATCH, "hcictl",
|
|
ng_btsocket_hci_raw_ioctl_timeout * hz);
|
|
pcb->token = 0;
|
|
|
|
if (error != 0)
|
|
break;
|
|
|
|
if (pcb->msg != NULL &&
|
|
pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) {
|
|
/* Return data back to user space */
|
|
p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data);
|
|
p2 = (ng_hci_node_con_ep *)(p1 + 1);
|
|
|
|
p->num_connections = min(p->num_connections,
|
|
p1->num_connections);
|
|
if (p->num_connections > 0)
|
|
error = copyout((caddr_t) p2,
|
|
(caddr_t) p->connections,
|
|
p->num_connections * sizeof(*p2));
|
|
} else
|
|
error = EINVAL;
|
|
|
|
NG_FREE_MSG(pcb->msg); /* checks for != NULL */
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: {
|
|
struct ng_btsocket_hci_raw_node_link_policy_mask *p =
|
|
(struct ng_btsocket_hci_raw_node_link_policy_mask *)
|
|
data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK,
|
|
&p->policy_mask, sizeof(p->policy_mask));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: {
|
|
struct ng_btsocket_hci_raw_node_link_policy_mask *p =
|
|
(struct ng_btsocket_hci_raw_node_link_policy_mask *)
|
|
data;
|
|
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK,
|
|
&p->policy_mask,
|
|
sizeof(p->policy_mask));
|
|
else
|
|
error = EPERM;
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: {
|
|
struct ng_btsocket_hci_raw_node_packet_mask *p =
|
|
(struct ng_btsocket_hci_raw_node_packet_mask *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_PACKET_MASK,
|
|
&p->packet_mask, sizeof(p->packet_mask));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: {
|
|
struct ng_btsocket_hci_raw_node_packet_mask *p =
|
|
(struct ng_btsocket_hci_raw_node_packet_mask *) data;
|
|
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_SET_PACKET_MASK,
|
|
&p->packet_mask,
|
|
sizeof(p->packet_mask));
|
|
else
|
|
error = EPERM;
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH: {
|
|
struct ng_btsocket_hci_raw_node_role_switch *p =
|
|
(struct ng_btsocket_hci_raw_node_role_switch *) data;
|
|
|
|
error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path,
|
|
NGM_HCI_NODE_GET_ROLE_SWITCH,
|
|
&p->role_switch, sizeof(p->role_switch));
|
|
} break;
|
|
|
|
case SIOC_HCI_RAW_NODE_SET_ROLE_SWITCH: {
|
|
struct ng_btsocket_hci_raw_node_role_switch *p =
|
|
(struct ng_btsocket_hci_raw_node_role_switch *) data;
|
|
|
|
if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)
|
|
error = ng_btsocket_hci_raw_send_ngmsg(path,
|
|
NGM_HCI_NODE_SET_ROLE_SWITCH,
|
|
&p->role_switch,
|
|
sizeof(p->role_switch));
|
|
else
|
|
error = EPERM;
|
|
} break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (error);
|
|
} /* ng_btsocket_hci_raw_control */
|
|
|
|
/*
|
|
* Process getsockopt/setsockopt system calls
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_ctloutput(struct socket *so, struct sockopt *sopt)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
struct ng_btsocket_hci_raw_filter filter;
|
|
int error = 0, dir;
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
if (sopt->sopt_level != SOL_HCI_RAW)
|
|
return (0);
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
switch (sopt->sopt_dir) {
|
|
case SOPT_GET:
|
|
switch (sopt->sopt_name) {
|
|
case SO_HCI_RAW_FILTER:
|
|
error = sooptcopyout(sopt, &pcb->filter,
|
|
sizeof(pcb->filter));
|
|
break;
|
|
|
|
case SO_HCI_RAW_DIRECTION:
|
|
dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0;
|
|
error = sooptcopyout(sopt, &dir, sizeof(dir));
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case SOPT_SET:
|
|
switch (sopt->sopt_name) {
|
|
case SO_HCI_RAW_FILTER:
|
|
error = sooptcopyin(sopt, &filter, sizeof(filter),
|
|
sizeof(filter));
|
|
if (error == 0)
|
|
bcopy(&filter, &pcb->filter,
|
|
sizeof(pcb->filter));
|
|
break;
|
|
|
|
case SO_HCI_RAW_DIRECTION:
|
|
error = sooptcopyin(sopt, &dir, sizeof(dir),
|
|
sizeof(dir));
|
|
if (error != 0)
|
|
break;
|
|
|
|
if (dir)
|
|
pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION;
|
|
else
|
|
pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION;
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (error);
|
|
} /* ng_btsocket_hci_raw_ctloutput */
|
|
|
|
/*
|
|
* Detach raw HCI socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_detach(struct socket *so)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
mtx_lock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
LIST_REMOVE(pcb, next);
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx);
|
|
|
|
mtx_destroy(&pcb->pcb_mtx);
|
|
|
|
bzero(pcb, sizeof(*pcb));
|
|
FREE(pcb, M_NETGRAPH_BTSOCKET_HCI_RAW);
|
|
|
|
ACCEPT_LOCK();
|
|
SOCK_LOCK(so);
|
|
so->so_pcb = NULL;
|
|
sotryfree(so);
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_detach */
|
|
|
|
/*
|
|
* Disconnect raw HCI socket
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_disconnect(struct socket *so)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
soisdisconnected(so);
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (0);
|
|
} /* ng_btsocket_hci_raw_disconnect */
|
|
|
|
/*
|
|
* Get socket peer's address
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_peeraddr(struct socket *so, struct sockaddr **nam)
|
|
{
|
|
return (ng_btsocket_hci_raw_sockaddr(so, nam));
|
|
} /* ng_btsocket_hci_raw_peeraddr */
|
|
|
|
/*
|
|
* Send data
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_send(struct socket *so, int flags, struct mbuf *m,
|
|
struct sockaddr *sa, struct mbuf *control, struct thread *td)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
struct mbuf *nam = NULL;
|
|
int error = 0;
|
|
|
|
if (ng_btsocket_hci_raw_node == NULL) {
|
|
error = ENETDOWN;
|
|
goto drop;
|
|
}
|
|
if (pcb == NULL) {
|
|
error = EINVAL;
|
|
goto drop;
|
|
}
|
|
if (control != NULL) {
|
|
error = EINVAL;
|
|
goto drop;
|
|
}
|
|
|
|
if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) ||
|
|
m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) {
|
|
error = EMSGSIZE;
|
|
goto drop;
|
|
}
|
|
|
|
if (m->m_len < sizeof(ng_hci_cmd_pkt_t)) {
|
|
if ((m = m_pullup(m, sizeof(ng_hci_cmd_pkt_t))) == NULL) {
|
|
error = ENOBUFS;
|
|
goto drop;
|
|
}
|
|
}
|
|
if (*mtod(m, u_int8_t *) != NG_HCI_CMD_PKT) {
|
|
error = ENOTSUP;
|
|
goto drop;
|
|
}
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
|
|
error = ng_btsocket_hci_raw_filter(pcb, m, 0);
|
|
if (error != 0) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
goto drop;
|
|
}
|
|
|
|
if (sa == NULL) {
|
|
if (pcb->addr.hci_node[0] == 0) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
error = EDESTADDRREQ;
|
|
goto drop;
|
|
}
|
|
|
|
sa = (struct sockaddr *) &pcb->addr;
|
|
}
|
|
|
|
MGET(nam, M_DONTWAIT, MT_SONAME);
|
|
if (nam == NULL) {
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
error = ENOBUFS;
|
|
goto drop;
|
|
}
|
|
|
|
nam->m_len = sizeof(struct sockaddr_hci);
|
|
bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci));
|
|
|
|
nam->m_next = m;
|
|
m = NULL;
|
|
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
return (ng_send_fn(ng_btsocket_hci_raw_node, NULL,
|
|
ng_btsocket_hci_raw_output, nam, 0));
|
|
drop:
|
|
NG_FREE_M(control); /* NG_FREE_M checks for != NULL */
|
|
NG_FREE_M(nam);
|
|
NG_FREE_M(m);
|
|
|
|
return (error);
|
|
} /* ng_btsocket_hci_raw_send */
|
|
|
|
/*
|
|
* Get socket address
|
|
*/
|
|
|
|
int
|
|
ng_btsocket_hci_raw_sockaddr(struct socket *so, struct sockaddr **nam)
|
|
{
|
|
ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so);
|
|
struct sockaddr_hci sa;
|
|
|
|
if (pcb == NULL)
|
|
return (EINVAL);
|
|
if (ng_btsocket_hci_raw_node == NULL)
|
|
return (EINVAL);
|
|
|
|
bzero(&sa, sizeof(sa));
|
|
sa.hci_len = sizeof(sa);
|
|
sa.hci_family = AF_BLUETOOTH;
|
|
|
|
mtx_lock(&pcb->pcb_mtx);
|
|
strlcpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node));
|
|
mtx_unlock(&pcb->pcb_mtx);
|
|
|
|
*nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT);
|
|
|
|
return ((*nam == NULL)? ENOMEM : 0);
|
|
} /* ng_btsocket_hci_raw_sockaddr */
|
|
|