summaryrefslogtreecommitdiff
path: root/net/bluetooth/bnep
diff options
context:
space:
mode:
Diffstat (limited to 'net/bluetooth/bnep')
-rw-r--r--net/bluetooth/bnep/Kconfig24
-rw-r--r--net/bluetooth/bnep/Makefile7
-rw-r--r--net/bluetooth/bnep/bnep.h179
-rw-r--r--net/bluetooth/bnep/core.c746
-rw-r--r--net/bluetooth/bnep/netdev.c237
-rw-r--r--net/bluetooth/bnep/sock.c258
6 files changed, 1451 insertions, 0 deletions
diff --git a/net/bluetooth/bnep/Kconfig b/net/bluetooth/bnep/Kconfig
new file mode 100644
index 00000000..35158b03
--- /dev/null
+++ b/net/bluetooth/bnep/Kconfig
@@ -0,0 +1,24 @@
+config BT_BNEP
+ tristate "BNEP protocol support"
+ depends on BT && BT_L2CAP
+ select CRC32
+ help
+ BNEP (Bluetooth Network Encapsulation Protocol) is Ethernet
+ emulation layer on top of Bluetooth. BNEP is required for
+ Bluetooth PAN (Personal Area Network).
+
+ Say Y here to compile BNEP support into the kernel or say M to
+ compile it as module (bnep).
+
+config BT_BNEP_MC_FILTER
+ bool "Multicast filter support"
+ depends on BT_BNEP
+ help
+ This option enables the multicast filter support for BNEP.
+
+config BT_BNEP_PROTO_FILTER
+ bool "Protocol filter support"
+ depends on BT_BNEP
+ help
+ This option enables the protocol filter support for BNEP.
+
diff --git a/net/bluetooth/bnep/Makefile b/net/bluetooth/bnep/Makefile
new file mode 100644
index 00000000..c7821e76
--- /dev/null
+++ b/net/bluetooth/bnep/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux Bluetooth BNEP layer.
+#
+
+obj-$(CONFIG_BT_BNEP) += bnep.o
+
+bnep-objs := core.o sock.o netdev.o
diff --git a/net/bluetooth/bnep/bnep.h b/net/bluetooth/bnep/bnep.h
new file mode 100644
index 00000000..70672544
--- /dev/null
+++ b/net/bluetooth/bnep/bnep.h
@@ -0,0 +1,179 @@
+/*
+ BNEP protocol definition for Linux Bluetooth stack (BlueZ).
+ 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.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef _BNEP_H
+#define _BNEP_H
+
+#include <linux/types.h>
+#include <linux/crc32.h>
+#include <net/bluetooth/bluetooth.h>
+
+// Limits
+#define BNEP_MAX_PROTO_FILTERS 5
+#define BNEP_MAX_MULTICAST_FILTERS 20
+
+// UUIDs
+#define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB
+#define BNEP_UUID16 0x02
+#define BNEP_UUID32 0x04
+#define BNEP_UUID128 0x16
+
+#define BNEP_SVC_PANU 0x1115
+#define BNEP_SVC_NAP 0x1116
+#define BNEP_SVC_GN 0x1117
+
+// Packet types
+#define BNEP_GENERAL 0x00
+#define BNEP_CONTROL 0x01
+#define BNEP_COMPRESSED 0x02
+#define BNEP_COMPRESSED_SRC_ONLY 0x03
+#define BNEP_COMPRESSED_DST_ONLY 0x04
+
+// Control types
+#define BNEP_CMD_NOT_UNDERSTOOD 0x00
+#define BNEP_SETUP_CONN_REQ 0x01
+#define BNEP_SETUP_CONN_RSP 0x02
+#define BNEP_FILTER_NET_TYPE_SET 0x03
+#define BNEP_FILTER_NET_TYPE_RSP 0x04
+#define BNEP_FILTER_MULTI_ADDR_SET 0x05
+#define BNEP_FILTER_MULTI_ADDR_RSP 0x06
+
+// Extension types
+#define BNEP_EXT_CONTROL 0x00
+
+// Response messages
+#define BNEP_SUCCESS 0x00
+
+#define BNEP_CONN_INVALID_DST 0x01
+#define BNEP_CONN_INVALID_SRC 0x02
+#define BNEP_CONN_INVALID_SVC 0x03
+#define BNEP_CONN_NOT_ALLOWED 0x04
+
+#define BNEP_FILTER_UNSUPPORTED_REQ 0x01
+#define BNEP_FILTER_INVALID_RANGE 0x02
+#define BNEP_FILTER_INVALID_MCADDR 0x02
+#define BNEP_FILTER_LIMIT_REACHED 0x03
+#define BNEP_FILTER_DENIED_SECURITY 0x04
+
+// L2CAP settings
+#define BNEP_MTU 1691
+#define BNEP_PSM 0x0f
+#define BNEP_FLUSH_TO 0xffff
+#define BNEP_CONNECT_TO 15
+#define BNEP_FILTER_TO 15
+
+// Headers
+#define BNEP_TYPE_MASK 0x7f
+#define BNEP_EXT_HEADER 0x80
+
+struct bnep_setup_conn_req {
+ __u8 type;
+ __u8 ctrl;
+ __u8 uuid_size;
+ __u8 service[0];
+} __packed;
+
+struct bnep_set_filter_req {
+ __u8 type;
+ __u8 ctrl;
+ __be16 len;
+ __u8 list[0];
+} __packed;
+
+struct bnep_control_rsp {
+ __u8 type;
+ __u8 ctrl;
+ __be16 resp;
+} __packed;
+
+struct bnep_ext_hdr {
+ __u8 type;
+ __u8 len;
+ __u8 data[0];
+} __packed;
+
+/* BNEP ioctl defines */
+#define BNEPCONNADD _IOW('B', 200, int)
+#define BNEPCONNDEL _IOW('B', 201, int)
+#define BNEPGETCONNLIST _IOR('B', 210, int)
+#define BNEPGETCONNINFO _IOR('B', 211, int)
+
+struct bnep_connadd_req {
+ int sock; // Connected socket
+ __u32 flags;
+ __u16 role;
+ char device[16]; // Name of the Ethernet device
+};
+
+struct bnep_conndel_req {
+ __u32 flags;
+ __u8 dst[ETH_ALEN];
+};
+
+struct bnep_conninfo {
+ __u32 flags;
+ __u16 role;
+ __u16 state;
+ __u8 dst[ETH_ALEN];
+ char device[16];
+};
+
+struct bnep_connlist_req {
+ __u32 cnum;
+ struct bnep_conninfo __user *ci;
+};
+
+struct bnep_proto_filter {
+ __u16 start;
+ __u16 end;
+};
+
+int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
+int bnep_del_connection(struct bnep_conndel_req *req);
+int bnep_get_connlist(struct bnep_connlist_req *req);
+int bnep_get_conninfo(struct bnep_conninfo *ci);
+
+// BNEP sessions
+struct bnep_session {
+ struct list_head list;
+
+ unsigned int role;
+ unsigned long state;
+ unsigned long flags;
+ atomic_t killed;
+
+ struct ethhdr eh;
+ struct msghdr msg;
+
+ struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
+ unsigned long long mc_filter;
+
+ struct socket *sock;
+ struct net_device *dev;
+};
+
+void bnep_net_setup(struct net_device *dev);
+int bnep_sock_init(void);
+void bnep_sock_cleanup(void);
+
+static inline int bnep_mc_hash(__u8 *addr)
+{
+ return (crc32_be(~0, addr, ETH_ALEN) >> 26);
+}
+
+#endif
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
new file mode 100644
index 00000000..f10b41fb
--- /dev/null
+++ b/net/bluetooth/bnep/core.c
@@ -0,0 +1,746 @@
+/*
+ BNEP implementation for Linux Bluetooth stack (BlueZ).
+ Copyright (C) 2001-2002 Inventel Systemes
+ Written 2001-2002 by
+ Clément Moreau <clement.moreau@inventel.fr>
+ 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/module.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/init.h>
+#include <linux/wait.h>
+#include <linux/freezer.h>
+#include <linux/errno.h>
+#include <linux/net.h>
+#include <linux/slab.h>
+#include <net/sock.h>
+
+#include <linux/socket.h>
+#include <linux/file.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "bnep.h"
+
+#define VERSION "1.3"
+
+static int compress_src = 1;
+static int compress_dst = 1;
+
+static LIST_HEAD(bnep_session_list);
+static DECLARE_RWSEM(bnep_session_sem);
+
+static struct bnep_session *__bnep_get_session(u8 *dst)
+{
+ struct bnep_session *s;
+ struct list_head *p;
+
+ BT_DBG("");
+
+ list_for_each(p, &bnep_session_list) {
+ s = list_entry(p, struct bnep_session, list);
+ if (!compare_ether_addr(dst, s->eh.h_source))
+ return s;
+ }
+ return NULL;
+}
+
+static void __bnep_link_session(struct bnep_session *s)
+{
+ /* It's safe to call __module_get() here because sessions are added
+ by the socket layer which has to hold the reference to this module.
+ */
+ __module_get(THIS_MODULE);
+ list_add(&s->list, &bnep_session_list);
+}
+
+static void __bnep_unlink_session(struct bnep_session *s)
+{
+ list_del(&s->list);
+ module_put(THIS_MODULE);
+}
+
+static int bnep_send(struct bnep_session *s, void *data, size_t len)
+{
+ struct socket *sock = s->sock;
+ struct kvec iv = { data, len };
+
+ return kernel_sendmsg(sock, &s->msg, &iv, 1, len);
+}
+
+static int bnep_send_rsp(struct bnep_session *s, u8 ctrl, u16 resp)
+{
+ struct bnep_control_rsp rsp;
+ rsp.type = BNEP_CONTROL;
+ rsp.ctrl = ctrl;
+ rsp.resp = htons(resp);
+ return bnep_send(s, &rsp, sizeof(rsp));
+}
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+static inline void bnep_set_default_proto_filter(struct bnep_session *s)
+{
+ /* (IPv4, ARP) */
+ s->proto_filter[0].start = ETH_P_IP;
+ s->proto_filter[0].end = ETH_P_ARP;
+ /* (RARP, AppleTalk) */
+ s->proto_filter[1].start = ETH_P_RARP;
+ s->proto_filter[1].end = ETH_P_AARP;
+ /* (IPX, IPv6) */
+ s->proto_filter[2].start = ETH_P_IPX;
+ s->proto_filter[2].end = ETH_P_IPV6;
+}
+#endif
+
+static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data, int len)
+{
+ int n;
+
+ if (len < 2)
+ return -EILSEQ;
+
+ n = get_unaligned_be16(data);
+ data++; len -= 2;
+
+ if (len < n)
+ return -EILSEQ;
+
+ BT_DBG("filter len %d", n);
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+ n /= 4;
+ if (n <= BNEP_MAX_PROTO_FILTERS) {
+ struct bnep_proto_filter *f = s->proto_filter;
+ int i;
+
+ for (i = 0; i < n; i++) {
+ f[i].start = get_unaligned_be16(data++);
+ f[i].end = get_unaligned_be16(data++);
+
+ BT_DBG("proto filter start %d end %d",
+ f[i].start, f[i].end);
+ }
+
+ if (i < BNEP_MAX_PROTO_FILTERS)
+ memset(f + i, 0, sizeof(*f));
+
+ if (n == 0)
+ bnep_set_default_proto_filter(s);
+
+ bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_SUCCESS);
+ } else {
+ bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_FILTER_LIMIT_REACHED);
+ }
+#else
+ bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_FILTER_UNSUPPORTED_REQ);
+#endif
+ return 0;
+}
+
+static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
+{
+ int n;
+
+ if (len < 2)
+ return -EILSEQ;
+
+ n = get_unaligned_be16(data);
+ data += 2; len -= 2;
+
+ if (len < n)
+ return -EILSEQ;
+
+ BT_DBG("filter len %d", n);
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+ n /= (ETH_ALEN * 2);
+
+ if (n > 0) {
+ s->mc_filter = 0;
+
+ /* Always send broadcast */
+ set_bit(bnep_mc_hash(s->dev->broadcast), (ulong *) &s->mc_filter);
+
+ /* Add address ranges to the multicast hash */
+ for (; n > 0; n--) {
+ u8 a1[6], *a2;
+
+ memcpy(a1, data, ETH_ALEN); data += ETH_ALEN;
+ a2 = data; data += ETH_ALEN;
+
+ BT_DBG("mc filter %s -> %s",
+ batostr((void *) a1), batostr((void *) a2));
+
+ #define INCA(a) { int i = 5; while (i >=0 && ++a[i--] == 0); }
+
+ /* Iterate from a1 to a2 */
+ set_bit(bnep_mc_hash(a1), (ulong *) &s->mc_filter);
+ while (memcmp(a1, a2, 6) < 0 && s->mc_filter != ~0LL) {
+ INCA(a1);
+ set_bit(bnep_mc_hash(a1), (ulong *) &s->mc_filter);
+ }
+ }
+ }
+
+ BT_DBG("mc filter hash 0x%llx", s->mc_filter);
+
+ bnep_send_rsp(s, BNEP_FILTER_MULTI_ADDR_RSP, BNEP_SUCCESS);
+#else
+ bnep_send_rsp(s, BNEP_FILTER_MULTI_ADDR_RSP, BNEP_FILTER_UNSUPPORTED_REQ);
+#endif
+ return 0;
+}
+
+static int bnep_rx_control(struct bnep_session *s, void *data, int len)
+{
+ u8 cmd = *(u8 *)data;
+ int err = 0;
+
+ data++; len--;
+
+ switch (cmd) {
+ case BNEP_CMD_NOT_UNDERSTOOD:
+ case BNEP_SETUP_CONN_RSP:
+ case BNEP_FILTER_NET_TYPE_RSP:
+ case BNEP_FILTER_MULTI_ADDR_RSP:
+ /* Ignore these for now */
+ break;
+
+ case BNEP_FILTER_NET_TYPE_SET:
+ err = bnep_ctrl_set_netfilter(s, data, len);
+ break;
+
+ case BNEP_FILTER_MULTI_ADDR_SET:
+ err = bnep_ctrl_set_mcfilter(s, data, len);
+ break;
+
+ case BNEP_SETUP_CONN_REQ:
+ err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP, BNEP_CONN_NOT_ALLOWED);
+ break;
+
+ default: {
+ u8 pkt[3];
+ pkt[0] = BNEP_CONTROL;
+ pkt[1] = BNEP_CMD_NOT_UNDERSTOOD;
+ pkt[2] = cmd;
+ bnep_send(s, pkt, sizeof(pkt));
+ }
+ break;
+ }
+
+ return err;
+}
+
+static int bnep_rx_extension(struct bnep_session *s, struct sk_buff *skb)
+{
+ struct bnep_ext_hdr *h;
+ int err = 0;
+
+ do {
+ h = (void *) skb->data;
+ if (!skb_pull(skb, sizeof(*h))) {
+ err = -EILSEQ;
+ break;
+ }
+
+ BT_DBG("type 0x%x len %d", h->type, h->len);
+
+ switch (h->type & BNEP_TYPE_MASK) {
+ case BNEP_EXT_CONTROL:
+ bnep_rx_control(s, skb->data, skb->len);
+ break;
+
+ default:
+ /* Unknown extension, skip it. */
+ break;
+ }
+
+ if (!skb_pull(skb, h->len)) {
+ err = -EILSEQ;
+ break;
+ }
+ } while (!err && (h->type & BNEP_EXT_HEADER));
+
+ return err;
+}
+
+static u8 __bnep_rx_hlen[] = {
+ ETH_HLEN, /* BNEP_GENERAL */
+ 0, /* BNEP_CONTROL */
+ 2, /* BNEP_COMPRESSED */
+ ETH_ALEN + 2, /* BNEP_COMPRESSED_SRC_ONLY */
+ ETH_ALEN + 2 /* BNEP_COMPRESSED_DST_ONLY */
+};
+#define BNEP_RX_TYPES (sizeof(__bnep_rx_hlen) - 1)
+
+static inline int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
+{
+ struct net_device *dev = s->dev;
+ struct sk_buff *nskb;
+ u8 type;
+
+ dev->stats.rx_bytes += skb->len;
+
+ type = *(u8 *) skb->data; skb_pull(skb, 1);
+
+ if ((type & BNEP_TYPE_MASK) > BNEP_RX_TYPES)
+ goto badframe;
+
+ if ((type & BNEP_TYPE_MASK) == BNEP_CONTROL) {
+ bnep_rx_control(s, skb->data, skb->len);
+ kfree_skb(skb);
+ return 0;
+ }
+
+ skb_reset_mac_header(skb);
+
+ /* Verify and pull out header */
+ if (!skb_pull(skb, __bnep_rx_hlen[type & BNEP_TYPE_MASK]))
+ goto badframe;
+
+ s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+
+ if (type & BNEP_EXT_HEADER) {
+ if (bnep_rx_extension(s, skb) < 0)
+ goto badframe;
+ }
+
+ /* Strip 802.1p header */
+ if (ntohs(s->eh.h_proto) == 0x8100) {
+ if (!skb_pull(skb, 4))
+ goto badframe;
+ s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+ }
+
+ /* We have to alloc new skb and copy data here :(. Because original skb
+ * may not be modified and because of the alignment requirements. */
+ nskb = alloc_skb(2 + ETH_HLEN + skb->len, GFP_KERNEL);
+ if (!nskb) {
+ dev->stats.rx_dropped++;
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ skb_reserve(nskb, 2);
+
+ /* Decompress header and construct ether frame */
+ switch (type & BNEP_TYPE_MASK) {
+ case BNEP_COMPRESSED:
+ memcpy(__skb_put(nskb, ETH_HLEN), &s->eh, ETH_HLEN);
+ break;
+
+ case BNEP_COMPRESSED_SRC_ONLY:
+ memcpy(__skb_put(nskb, ETH_ALEN), s->eh.h_dest, ETH_ALEN);
+ memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb), ETH_ALEN);
+ put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
+ break;
+
+ case BNEP_COMPRESSED_DST_ONLY:
+ memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb),
+ ETH_ALEN);
+ memcpy(__skb_put(nskb, ETH_ALEN + 2), s->eh.h_source,
+ ETH_ALEN + 2);
+ break;
+
+ case BNEP_GENERAL:
+ memcpy(__skb_put(nskb, ETH_ALEN * 2), skb_mac_header(skb),
+ ETH_ALEN * 2);
+ put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
+ break;
+ }
+
+ skb_copy_from_linear_data(skb, __skb_put(nskb, skb->len), skb->len);
+ kfree_skb(skb);
+
+ dev->stats.rx_packets++;
+ nskb->ip_summed = CHECKSUM_NONE;
+ nskb->protocol = eth_type_trans(nskb, dev);
+ netif_rx_ni(nskb);
+ return 0;
+
+badframe:
+ dev->stats.rx_errors++;
+ kfree_skb(skb);
+ return 0;
+}
+
+static u8 __bnep_tx_types[] = {
+ BNEP_GENERAL,
+ BNEP_COMPRESSED_SRC_ONLY,
+ BNEP_COMPRESSED_DST_ONLY,
+ BNEP_COMPRESSED
+};
+
+static inline int bnep_tx_frame(struct bnep_session *s, struct sk_buff *skb)
+{
+ struct ethhdr *eh = (void *) skb->data;
+ struct socket *sock = s->sock;
+ struct kvec iv[3];
+ int len = 0, il = 0;
+ u8 type = 0;
+
+ BT_DBG("skb %p dev %p type %d", skb, skb->dev, skb->pkt_type);
+
+ if (!skb->dev) {
+ /* Control frame sent by us */
+ goto send;
+ }
+
+ iv[il++] = (struct kvec) { &type, 1 };
+ len++;
+
+ if (compress_src && !compare_ether_addr(eh->h_dest, s->eh.h_source))
+ type |= 0x01;
+
+ if (compress_dst && !compare_ether_addr(eh->h_source, s->eh.h_dest))
+ type |= 0x02;
+
+ if (type)
+ skb_pull(skb, ETH_ALEN * 2);
+
+ type = __bnep_tx_types[type];
+ switch (type) {
+ case BNEP_COMPRESSED_SRC_ONLY:
+ iv[il++] = (struct kvec) { eh->h_source, ETH_ALEN };
+ len += ETH_ALEN;
+ break;
+
+ case BNEP_COMPRESSED_DST_ONLY:
+ iv[il++] = (struct kvec) { eh->h_dest, ETH_ALEN };
+ len += ETH_ALEN;
+ break;
+ }
+
+send:
+ iv[il++] = (struct kvec) { skb->data, skb->len };
+ len += skb->len;
+
+ /* FIXME: linearize skb */
+ {
+ len = kernel_sendmsg(sock, &s->msg, iv, il, len);
+ }
+ kfree_skb(skb);
+
+ if (len > 0) {
+ s->dev->stats.tx_bytes += len;
+ s->dev->stats.tx_packets++;
+ return 0;
+ }
+
+ return len;
+}
+
+static int bnep_session(void *arg)
+{
+ struct bnep_session *s = arg;
+ struct net_device *dev = s->dev;
+ struct sock *sk = s->sock->sk;
+ struct sk_buff *skb;
+ wait_queue_t wait;
+
+ BT_DBG("");
+
+ daemonize("kbnepd %s", dev->name);
+ set_user_nice(current, -15);
+
+ init_waitqueue_entry(&wait, current);
+ add_wait_queue(sk_sleep(sk), &wait);
+ while (!atomic_read(&s->killed)) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ // RX
+ while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+ skb_orphan(skb);
+ bnep_rx_frame(s, skb);
+ }
+
+ if (sk->sk_state != BT_CONNECTED)
+ break;
+
+ // TX
+ while ((skb = skb_dequeue(&sk->sk_write_queue)))
+ if (bnep_tx_frame(s, skb))
+ break;
+ netif_wake_queue(dev);
+
+ schedule();
+ }
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(sk_sleep(sk), &wait);
+
+ /* Cleanup session */
+ down_write(&bnep_session_sem);
+
+ /* Delete network device */
+ unregister_netdev(dev);
+
+ /* Wakeup user-space polling for socket errors */
+ s->sock->sk->sk_err = EUNATCH;
+
+ wake_up_interruptible(sk_sleep(s->sock->sk));
+
+ /* Release the socket */
+ fput(s->sock->file);
+
+ __bnep_unlink_session(s);
+
+ up_write(&bnep_session_sem);
+ free_netdev(dev);
+ return 0;
+}
+
+static struct device *bnep_get_device(struct bnep_session *session)
+{
+ bdaddr_t *src = &bt_sk(session->sock->sk)->src;
+ bdaddr_t *dst = &bt_sk(session->sock->sk)->dst;
+ struct hci_dev *hdev;
+ struct hci_conn *conn;
+
+ hdev = hci_get_route(dst, src);
+ if (!hdev)
+ return NULL;
+
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+
+ hci_dev_put(hdev);
+
+ return conn ? &conn->dev : NULL;
+}
+
+static struct device_type bnep_type = {
+ .name = "bluetooth",
+};
+
+int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
+{
+ struct net_device *dev;
+ struct bnep_session *s, *ss;
+ u8 dst[ETH_ALEN], src[ETH_ALEN];
+ int err;
+
+ BT_DBG("");
+
+ baswap((void *) dst, &bt_sk(sock->sk)->dst);
+ baswap((void *) src, &bt_sk(sock->sk)->src);
+
+ /* session struct allocated as private part of net_device */
+ dev = alloc_netdev(sizeof(struct bnep_session),
+ (*req->device) ? req->device : "bnep%d",
+ bnep_net_setup);
+ if (!dev)
+ return -ENOMEM;
+
+ down_write(&bnep_session_sem);
+
+ ss = __bnep_get_session(dst);
+ if (ss && ss->state == BT_CONNECTED) {
+ err = -EEXIST;
+ goto failed;
+ }
+
+ s = netdev_priv(dev);
+
+ /* This is rx header therefore addresses are swapped.
+ * ie eh.h_dest is our local address. */
+ memcpy(s->eh.h_dest, &src, ETH_ALEN);
+ memcpy(s->eh.h_source, &dst, ETH_ALEN);
+ memcpy(dev->dev_addr, s->eh.h_dest, ETH_ALEN);
+
+ s->dev = dev;
+ s->sock = sock;
+ s->role = req->role;
+ s->state = BT_CONNECTED;
+
+ s->msg.msg_flags = MSG_NOSIGNAL;
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+ /* Set default mc filter */
+ set_bit(bnep_mc_hash(dev->broadcast), (ulong *) &s->mc_filter);
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+ /* Set default protocol filter */
+ bnep_set_default_proto_filter(s);
+#endif
+
+ SET_NETDEV_DEV(dev, bnep_get_device(s));
+ SET_NETDEV_DEVTYPE(dev, &bnep_type);
+
+ err = register_netdev(dev);
+ if (err) {
+ goto failed;
+ }
+
+ __bnep_link_session(s);
+
+ err = kernel_thread(bnep_session, s, CLONE_KERNEL);
+ if (err < 0) {
+ /* Session thread start failed, gotta cleanup. */
+ unregister_netdev(dev);
+ __bnep_unlink_session(s);
+ goto failed;
+ }
+
+ up_write(&bnep_session_sem);
+ strcpy(req->device, dev->name);
+ return 0;
+
+failed:
+ up_write(&bnep_session_sem);
+ free_netdev(dev);
+ return err;
+}
+
+int bnep_del_connection(struct bnep_conndel_req *req)
+{
+ struct bnep_session *s;
+ int err = 0;
+
+ BT_DBG("");
+
+ down_read(&bnep_session_sem);
+
+ s = __bnep_get_session(req->dst);
+ if (s) {
+ /* Wakeup user-space which is polling for socket errors.
+ * This is temporary hack until we have shutdown in L2CAP */
+ s->sock->sk->sk_err = EUNATCH;
+
+ /* Kill session thread */
+ atomic_inc(&s->killed);
+ wake_up_interruptible(sk_sleep(s->sock->sk));
+ } else
+ err = -ENOENT;
+
+ up_read(&bnep_session_sem);
+ return err;
+}
+
+static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s)
+{
+ memcpy(ci->dst, s->eh.h_source, ETH_ALEN);
+ strcpy(ci->device, s->dev->name);
+ ci->flags = s->flags;
+ ci->state = s->state;
+ ci->role = s->role;
+}
+
+int bnep_get_connlist(struct bnep_connlist_req *req)
+{
+ struct list_head *p;
+ int err = 0, n = 0;
+
+ down_read(&bnep_session_sem);
+
+ list_for_each(p, &bnep_session_list) {
+ struct bnep_session *s;
+ struct bnep_conninfo ci;
+
+ s = list_entry(p, struct bnep_session, list);
+
+ __bnep_copy_ci(&ci, s);
+
+ if (copy_to_user(req->ci, &ci, sizeof(ci))) {
+ err = -EFAULT;
+ break;
+ }
+
+ if (++n >= req->cnum)
+ break;
+
+ req->ci++;
+ }
+ req->cnum = n;
+
+ up_read(&bnep_session_sem);
+ return err;
+}
+
+int bnep_get_conninfo(struct bnep_conninfo *ci)
+{
+ struct bnep_session *s;
+ int err = 0;
+
+ down_read(&bnep_session_sem);
+
+ s = __bnep_get_session(ci->dst);
+ if (s)
+ __bnep_copy_ci(ci, s);
+ else
+ err = -ENOENT;
+
+ up_read(&bnep_session_sem);
+ return err;
+}
+
+static int __init bnep_init(void)
+{
+ char flt[50] = "";
+
+ l2cap_load();
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+ strcat(flt, "protocol ");
+#endif
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+ strcat(flt, "multicast");
+#endif
+
+ BT_INFO("BNEP (Ethernet Emulation) ver %s", VERSION);
+ if (flt[0])
+ BT_INFO("BNEP filters: %s", flt);
+
+ bnep_sock_init();
+ return 0;
+}
+
+static void __exit bnep_exit(void)
+{
+ bnep_sock_cleanup();
+}
+
+module_init(bnep_init);
+module_exit(bnep_exit);
+
+module_param(compress_src, bool, 0644);
+MODULE_PARM_DESC(compress_src, "Compress sources headers");
+
+module_param(compress_dst, bool, 0644);
+MODULE_PARM_DESC(compress_dst, "Compress destination headers");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth BNEP ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("bt-proto-4");
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
new file mode 100644
index 00000000..8c100c9d
--- /dev/null
+++ b/net/bluetooth/bnep/netdev.c
@@ -0,0 +1,237 @@
+/*
+ BNEP implementation for Linux Bluetooth stack (BlueZ).
+ Copyright (C) 2001-2002 Inventel Systemes
+ Written 2001-2002 by
+ Clément Moreau <clement.moreau@inventel.fr>
+ 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/module.h>
+#include <linux/slab.h>
+
+#include <linux/socket.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/wait.h>
+
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "bnep.h"
+
+#define BNEP_TX_QUEUE_LEN 20
+
+static int bnep_net_open(struct net_device *dev)
+{
+ netif_start_queue(dev);
+ return 0;
+}
+
+static int bnep_net_close(struct net_device *dev)
+{
+ netif_stop_queue(dev);
+ return 0;
+}
+
+static void bnep_net_set_mc_list(struct net_device *dev)
+{
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+ struct bnep_session *s = netdev_priv(dev);
+ struct sock *sk = s->sock->sk;
+ struct bnep_set_filter_req *r;
+ struct sk_buff *skb;
+ int size;
+
+ BT_DBG("%s mc_count %d", dev->name, netdev_mc_count(dev));
+
+ size = sizeof(*r) + (BNEP_MAX_MULTICAST_FILTERS + 1) * ETH_ALEN * 2;
+ skb = alloc_skb(size, GFP_ATOMIC);
+ if (!skb) {
+ BT_ERR("%s Multicast list allocation failed", dev->name);
+ return;
+ }
+
+ r = (void *) skb->data;
+ __skb_put(skb, sizeof(*r));
+
+ r->type = BNEP_CONTROL;
+ r->ctrl = BNEP_FILTER_MULTI_ADDR_SET;
+
+ if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
+ u8 start[ETH_ALEN] = { 0x01 };
+
+ /* Request all addresses */
+ memcpy(__skb_put(skb, ETH_ALEN), start, ETH_ALEN);
+ memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+ r->len = htons(ETH_ALEN * 2);
+ } else {
+ struct netdev_hw_addr *ha;
+ int i, len = skb->len;
+
+ if (dev->flags & IFF_BROADCAST) {
+ memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+ memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+ }
+
+ /* FIXME: We should group addresses here. */
+
+ i = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ if (i == BNEP_MAX_MULTICAST_FILTERS)
+ break;
+ memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+ memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+
+ i++;
+ }
+ r->len = htons(skb->len - len);
+ }
+
+ skb_queue_tail(&sk->sk_write_queue, skb);
+ wake_up_interruptible(sk_sleep(sk));
+#endif
+}
+
+static int bnep_net_set_mac_addr(struct net_device *dev, void *arg)
+{
+ BT_DBG("%s", dev->name);
+ return 0;
+}
+
+static void bnep_net_timeout(struct net_device *dev)
+{
+ BT_DBG("net_timeout");
+ netif_wake_queue(dev);
+}
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+static inline int bnep_net_mc_filter(struct sk_buff *skb, struct bnep_session *s)
+{
+ struct ethhdr *eh = (void *) skb->data;
+
+ if ((eh->h_dest[0] & 1) && !test_bit(bnep_mc_hash(eh->h_dest), (ulong *) &s->mc_filter))
+ return 1;
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+/* Determine ether protocol. Based on eth_type_trans. */
+static inline u16 bnep_net_eth_proto(struct sk_buff *skb)
+{
+ struct ethhdr *eh = (void *) skb->data;
+ u16 proto = ntohs(eh->h_proto);
+
+ if (proto >= 1536)
+ return proto;
+
+ if (get_unaligned((__be16 *) skb->data) == htons(0xFFFF))
+ return ETH_P_802_3;
+
+ return ETH_P_802_2;
+}
+
+static inline int bnep_net_proto_filter(struct sk_buff *skb, struct bnep_session *s)
+{
+ u16 proto = bnep_net_eth_proto(skb);
+ struct bnep_proto_filter *f = s->proto_filter;
+ int i;
+
+ for (i = 0; i < BNEP_MAX_PROTO_FILTERS && f[i].end; i++) {
+ if (proto >= f[i].start && proto <= f[i].end)
+ return 0;
+ }
+
+ BT_DBG("BNEP: filtered skb %p, proto 0x%.4x", skb, proto);
+ return 1;
+}
+#endif
+
+static netdev_tx_t bnep_net_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct bnep_session *s = netdev_priv(dev);
+ struct sock *sk = s->sock->sk;
+
+ BT_DBG("skb %p, dev %p", skb, dev);
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+ if (bnep_net_mc_filter(skb, s)) {
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+ if (bnep_net_proto_filter(skb, s)) {
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+#endif
+
+ /*
+ * We cannot send L2CAP packets from here as we are potentially in a bh.
+ * So we have to queue them and wake up session thread which is sleeping
+ * on the sk_sleep(sk).
+ */
+ dev->trans_start = jiffies;
+ skb_queue_tail(&sk->sk_write_queue, skb);
+ wake_up_interruptible(sk_sleep(sk));
+
+ if (skb_queue_len(&sk->sk_write_queue) >= BNEP_TX_QUEUE_LEN) {
+ BT_DBG("tx queue is full");
+
+ /* Stop queuing.
+ * Session thread will do netif_wake_queue() */
+ netif_stop_queue(dev);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops bnep_netdev_ops = {
+ .ndo_open = bnep_net_open,
+ .ndo_stop = bnep_net_close,
+ .ndo_start_xmit = bnep_net_xmit,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_multicast_list = bnep_net_set_mc_list,
+ .ndo_set_mac_address = bnep_net_set_mac_addr,
+ .ndo_tx_timeout = bnep_net_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+
+};
+
+void bnep_net_setup(struct net_device *dev)
+{
+
+ memset(dev->broadcast, 0xff, ETH_ALEN);
+ dev->addr_len = ETH_ALEN;
+
+ ether_setup(dev);
+ dev->netdev_ops = &bnep_netdev_ops;
+
+ dev->watchdog_timeo = HZ * 2;
+}
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
new file mode 100644
index 00000000..2862f53b
--- /dev/null
+++ b/net/bluetooth/bnep/sock.c
@@ -0,0 +1,258 @@
+/*
+ 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/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.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 <linux/compat.h>
+#include <linux/gfp.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include "bnep.h"
+
+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;
+
+ sock_orphan(sk);
+ sock_put(sk);
+ return 0;
+}
+
+static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ struct bnep_connlist_req cl;
+ struct bnep_connadd_req ca;
+ struct bnep_conndel_req cd;
+ struct bnep_conninfo ci;
+ struct socket *nsock;
+ void __user *argp = (void __user *)arg;
+ int err;
+
+ BT_DBG("cmd %x arg %lx", cmd, arg);
+
+ switch (cmd) {
+ case BNEPCONNADD:
+ if (!capable(CAP_NET_ADMIN))
+ return -EACCES;
+
+ 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;
+ }
+
+ 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 -EACCES;
+
+ 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;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_COMPAT
+static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ if (cmd == BNEPGETCONNLIST) {
+ struct bnep_connlist_req cl;
+ uint32_t uci;
+ int err;
+
+ if (get_user(cl.cnum, (uint32_t __user *) arg) ||
+ get_user(uci, (u32 __user *) (arg + 4)))
+ return -EFAULT;
+
+ cl.ci = compat_ptr(uci);
+
+ if (cl.cnum <= 0)
+ return -EINVAL;
+
+ err = bnep_get_connlist(&cl);
+
+ if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
+ err = -EFAULT;
+
+ return err;
+ }
+
+ return bnep_sock_ioctl(sock, cmd, arg);
+}
+#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,
+ .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 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 = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+
+ sock->ops = &bnep_sock_ops;
+
+ sock->state = SS_UNCONNECTED;
+
+ sock_reset_flag(sk, SOCK_ZAPPED);
+
+ sk->sk_protocol = protocol;
+ sk->sk_state = BT_OPEN;
+
+ 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)
+ goto error;
+
+ return 0;
+
+error:
+ BT_ERR("Can't register BNEP socket");
+ proto_unregister(&bnep_proto);
+ return err;
+}
+
+void __exit bnep_sock_cleanup(void)
+{
+ if (bt_sock_unregister(BTPROTO_BNEP) < 0)
+ BT_ERR("Can't unregister BNEP socket");
+
+ proto_unregister(&bnep_proto);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 16:06:01 +0000