From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
hci_chan will be identified by handle used in logical link creation
process. This handle is used in AMP ACL-U packet handle field.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 6 ++++--
net/bluetooth/hci_conn.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 90ae4f0..951f604 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -348,7 +348,7 @@ struct hci_conn {
struct hci_chan {
struct list_head list;
-
+ __u16 handle;
struct hci_conn *conn;
struct sk_buff_head data_q;
unsigned int sent;
@@ -565,7 +565,9 @@ void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_chan *hci_chan_create(struct hci_conn *conn);
void hci_chan_del(struct hci_chan *chan);
void hci_chan_list_flush(struct hci_conn *conn);
-
+struct hci_chan *hci_chan_lookup_handle(struct hci_conn *hcon, __u16 handle);
+struct hci_chan *hci_chan_lookup_handle_all(struct hci_dev *hdev,
+ __u16 handle);
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
__u8 dst_type, __u8 sec_level, __u8 auth_type);
int hci_conn_check_link_mode(struct hci_conn *conn);
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 3584f58..7387516 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -992,3 +992,37 @@ void hci_chan_list_flush(struct hci_conn *conn)
list_for_each_entry_safe(chan, n, &conn->chan_list, list)
hci_chan_del(chan);
}
+
+struct hci_chan *hci_chan_lookup_handle(struct hci_conn *hcon, __u16 handle)
+{
+ struct hci_chan *hchan;
+
+ list_for_each_entry(hchan, &hcon->chan_list, list) {
+ if (hchan->handle == handle)
+ return hchan;
+ }
+
+ return NULL;
+}
+
+struct hci_chan *hci_chan_lookup_handle_all(struct hci_dev *hdev, __u16 handle)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *hcon;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(hcon, &h->list, list) {
+ struct hci_chan *hchan;
+
+ hchan = hci_chan_lookup_handle(hcon, handle);
+ if (hchan) {
+ rcu_read_unlock();
+ return hchan;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return NULL;
+}
--
1.7.9.5
--
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