* [PATCH 1/3] Bluetooth: Add Bluetooth Management interface definitions
2010-12-07 22:21 Initial Management patches (rebased again) johan.hedberg
@ 2010-12-07 22:21 ` johan.hedberg
2010-12-07 22:21 ` [PATCH 2/3] Bluetooth: Add initial Bluetooth Management interface callbacks johan.hedberg
2010-12-07 22:21 ` [PATCH 3/3] Bluetooth: Make hci_send_to_sock usable for management control sockets johan.hedberg
2 siblings, 0 replies; 5+ messages in thread
From: johan.hedberg @ 2010-12-07 22:21 UTC (permalink / raw)
To: linux-bluetooth; +Cc: Johan Hedberg
From: Johan Hedberg <johan.hedberg@nokia.com>
Add initial definitions for the new Bluetooth Management interface to
the bluetooth headers.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci.h | 4 +++
include/net/bluetooth/hci_core.h | 1 +
include/net/bluetooth/mgmt.h | 46 ++++++++++++++++++++++++++++++++++++++
3 files changed, 51 insertions(+), 0 deletions(-)
create mode 100644 include/net/bluetooth/mgmt.h
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index f3c5ed6..29a7a8c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -934,9 +934,13 @@ static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
struct sockaddr_hci {
sa_family_t hci_family;
unsigned short hci_dev;
+ unsigned short hci_channel;
};
#define HCI_DEV_NONE 0xffff
+#define HCI_CHANNEL_RAW 0
+#define HCI_CHANNEL_CONTROL 1
+
struct hci_filter {
unsigned long type_mask;
unsigned long event_mask[2];
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9c08625..3e34359 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -668,6 +668,7 @@ struct hci_pinfo {
struct hci_dev *hdev;
struct hci_filter filter;
__u32 cmsg_mask;
+ unsigned short channel;
};
/* HCI security filter */
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
new file mode 100644
index 0000000..95974da
--- /dev/null
+++ b/include/net/bluetooth/mgmt.h
@@ -0,0 +1,46 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+
+ Copyright (C) 2010 Nokia Corporation
+
+ 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.
+*/
+
+struct mgmt_hdr {
+ __le16 opcode;
+ __le16 len;
+} __packed;
+#define MGMT_HDR_SIZE 4
+
+#define MGMT_EV_CMD_COMPLETE 0x0001
+struct mgmt_ev_cmd_complete {
+ __le16 opcode;
+ __u8 data[0];
+} __packed;
+
+#define MGMT_EV_CMD_STATUS 0x0002
+struct mgmt_ev_cmd_status {
+ __u8 status;
+ __le16 opcode;
+} __packed;
+
+#define MGMT_EV_CONTROLLER_ERROR 0x0003
+struct mgmt_ev_controller_error {
+ __le16 index;
+ __u8 error_code;
+} __packed;
--
1.7.2.3
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 2/3] Bluetooth: Add initial Bluetooth Management interface callbacks
2010-12-07 22:21 Initial Management patches (rebased again) johan.hedberg
2010-12-07 22:21 ` [PATCH 1/3] Bluetooth: Add Bluetooth Management interface definitions johan.hedberg
@ 2010-12-07 22:21 ` johan.hedberg
2010-12-07 22:21 ` [PATCH 3/3] Bluetooth: Make hci_send_to_sock usable for management control sockets johan.hedberg
2 siblings, 0 replies; 5+ messages in thread
From: johan.hedberg @ 2010-12-07 22:21 UTC (permalink / raw)
To: linux-bluetooth; +Cc: Johan Hedberg
From: Johan Hedberg <johan.hedberg@nokia.com>
Add initial code for handling Bluetooth Management interface messages.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
---
include/net/bluetooth/hci_core.h | 3 +
net/bluetooth/Makefile | 2 +-
net/bluetooth/hci_sock.c | 39 +++++++++++++--
net/bluetooth/mgmt.c | 99 ++++++++++++++++++++++++++++++++++++++
4 files changed, 136 insertions(+), 7 deletions(-)
create mode 100644 net/bluetooth/mgmt.c
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3e34359..1992fac 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -660,6 +660,9 @@ void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
/* ----- HCI Sockets ----- */
void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
+/* Management interface */
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
+
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 7ca1f46..250f954 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_BT_BNEP) += bnep/
obj-$(CONFIG_BT_CMTP) += cmtp/
obj-$(CONFIG_BT_HIDP) += hidp/
-bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o hci_sock.o hci_sysfs.o lib.o
+bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o hci_sock.o hci_sysfs.o lib.o
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index b3753ba..207be7a 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -49,6 +49,8 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+static int enable_mgmt;
+
/* ----- HCI socket interface ----- */
static inline int hci_test_bit(int nr, void *addr)
@@ -353,25 +355,35 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long a
static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
{
- struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
+ struct sockaddr_hci haddr;
struct sock *sk = sock->sk;
struct hci_dev *hdev = NULL;
- int err = 0;
+ int len, err = 0;
BT_DBG("sock %p sk %p", sock, sk);
- if (!haddr || haddr->hci_family != AF_BLUETOOTH)
+ if (!addr)
+ return -EINVAL;
+
+ memset(&haddr, 0, sizeof(haddr));
+ len = min_t(unsigned int, sizeof(haddr), addr_len);
+ memcpy(&haddr, addr, len);
+
+ if (haddr.hci_family != AF_BLUETOOTH)
+ return -EINVAL;
+
+ if (haddr.hci_channel != HCI_CHANNEL_RAW && !enable_mgmt)
return -EINVAL;
lock_sock(sk);
- if (hci_pi(sk)->hdev) {
+ if (sk->sk_state == BT_BOUND || hci_pi(sk)->hdev) {
err = -EALREADY;
goto done;
}
- if (haddr->hci_dev != HCI_DEV_NONE) {
- hdev = hci_dev_get(haddr->hci_dev);
+ if (haddr.hci_dev != HCI_DEV_NONE) {
+ hdev = hci_dev_get(haddr.hci_dev);
if (!hdev) {
err = -ENODEV;
goto done;
@@ -380,6 +392,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
atomic_inc(&hdev->promisc);
}
+ hci_pi(sk)->channel = haddr.hci_channel;
hci_pi(sk)->hdev = hdev;
sk->sk_state = BT_BOUND;
@@ -502,6 +515,17 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
lock_sock(sk);
+ switch (hci_pi(sk)->channel) {
+ case HCI_CHANNEL_RAW:
+ break;
+ case HCI_CHANNEL_CONTROL:
+ err = mgmt_control(sk, msg, len);
+ goto done;
+ default:
+ err = -EINVAL;
+ goto done;
+ }
+
hdev = hci_pi(sk)->hdev;
if (!hdev) {
err = -EBADFD;
@@ -831,3 +855,6 @@ void __exit hci_sock_cleanup(void)
proto_unregister(&hci_sk_proto);
}
+
+module_param(enable_mgmt, bool, 0644);
+MODULE_PARM_DESC(enable_mgmt, "Enable Management interface");
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
new file mode 100644
index 0000000..d15bf67
--- /dev/null
+++ b/net/bluetooth/mgmt.c
@@ -0,0 +1,99 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+ Copyright (C) 2010 Nokia Corporation
+
+ 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.
+*/
+
+/* Bluetooth HCI Management interface */
+
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/mgmt.h>
+
+static void cmd_status(struct sock *sk, u16 cmd, u8 status)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_status *ev;
+
+ BT_DBG("sock %p", sk);
+
+ skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_ATOMIC);
+ if (!skb)
+ return;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
+ hdr->len = cpu_to_le16(sizeof(*ev));
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ ev->status = status;
+ put_unaligned_le16(cmd, &ev->opcode);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+}
+
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+{
+ unsigned char *buf;
+ struct mgmt_hdr *hdr;
+ u16 opcode, len;
+ int err;
+
+ BT_DBG("got %zu bytes", msglen);
+
+ if (msglen < sizeof(*hdr))
+ return -EINVAL;
+
+ buf = kmalloc(msglen, GFP_ATOMIC);
+ if (!buf)
+ return -ENOMEM;
+
+ if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
+ err = -EFAULT;
+ goto done;
+ }
+
+ hdr = (struct mgmt_hdr *) buf;
+ opcode = get_unaligned_le16(&hdr->opcode);
+ len = get_unaligned_le16(&hdr->len);
+
+ if (len != msglen - sizeof(*hdr)) {
+ err = -EINVAL;
+ goto done;
+ }
+
+ switch (opcode) {
+ default:
+ BT_DBG("Unknown op %u", opcode);
+ cmd_status(sk, opcode, 0x01);
+ break;
+ }
+
+ err = msglen;
+
+done:
+ kfree(buf);
+ return err;
+}
--
1.7.2.3
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 3/3] Bluetooth: Make hci_send_to_sock usable for management control sockets
2010-12-07 22:21 Initial Management patches (rebased again) johan.hedberg
2010-12-07 22:21 ` [PATCH 1/3] Bluetooth: Add Bluetooth Management interface definitions johan.hedberg
2010-12-07 22:21 ` [PATCH 2/3] Bluetooth: Add initial Bluetooth Management interface callbacks johan.hedberg
@ 2010-12-07 22:21 ` johan.hedberg
2010-12-08 1:09 ` Gustavo F. Padovan
2 siblings, 1 reply; 5+ messages in thread
From: johan.hedberg @ 2010-12-07 22:21 UTC (permalink / raw)
To: linux-bluetooth; +Cc: Johan Hedberg
From: Johan Hedberg <johan.hedberg@nokia.com>
In order to send data to management control sockets the function should:
- skip checks intended for raw HCI data and stack internal events
- make sure RAW HCI data or stack internal events don't go to
management control sockets
In order to accomplish this the patch adds a new member to the bluetooth
skb private data to flag skb's that are destined for management control
sockets.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/bluetooth.h | 1 +
net/bluetooth/hci_sock.c | 10 +++++++++-
2 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index d81ea79..0c5e725 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -144,6 +144,7 @@ struct bt_skb_cb {
__u8 tx_seq;
__u8 retries;
__u8 sar;
+ unsigned short channel;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 207be7a..f6c18ab 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -104,6 +104,12 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
if (skb->sk == sk)
continue;
+ if (bt_cb(skb)->channel != hci_pi(sk)->channel)
+ continue;
+
+ if (bt_cb(skb)->channel == HCI_CHANNEL_CONTROL)
+ goto clone;
+
/* Apply filter */
flt = &hci_pi(sk)->filter;
@@ -127,12 +133,14 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
continue;
}
+clone:
nskb = skb_clone(skb, GFP_ATOMIC);
if (!nskb)
continue;
/* Put type byte before the data */
- memcpy(skb_push(nskb, 1), &bt_cb(nskb)->pkt_type, 1);
+ if (bt_cb(skb)->channel == HCI_CHANNEL_RAW)
+ memcpy(skb_push(nskb, 1), &bt_cb(nskb)->pkt_type, 1);
if (sock_queue_rcv_skb(sk, nskb))
kfree_skb(nskb);
--
1.7.2.3
^ permalink raw reply related [flat|nested] 5+ messages in thread