55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
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From c8f57936ab21a1430ae2209fa874e842d13552d3 Mon Sep 17 00:00:00 2001
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From: Jeremy Cline <jcline@redhat.com>
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Date: Tue, 11 Jun 2019 14:59:23 +0000
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Subject: [PATCH] Revert "Bluetooth: Align minimum encryption key size for LE
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and BR/EDR connections"
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This reverts commit d5bb334a8e171b262e48f378bd2096c0ea458265.
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This patch broke a number of older bluetooth devices and while an RFC
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that fixes this patch has been posted upstream, it has not been merged
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and there are still a few folks reporting problems.
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Signed-off-by: Jeremy Cline <jcline@redhat.com>
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---
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include/net/bluetooth/hci_core.h | 3 ---
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net/bluetooth/hci_conn.c | 8 --------
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2 files changed, 11 deletions(-)
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diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
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index 05b1b96f4d9e..094e61e07030 100644
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--- a/include/net/bluetooth/hci_core.h
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+++ b/include/net/bluetooth/hci_core.h
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@@ -190,9 +190,6 @@ struct adv_info {
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#define HCI_MAX_SHORT_NAME_LENGTH 10
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-/* Min encryption key size to match with SMP */
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-#define HCI_MIN_ENC_KEY_SIZE 7
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-
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/* Default LE RPA expiry time, 15 minutes */
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#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
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diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
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index 3cf0764d5793..bd4978ce8c45 100644
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--- a/net/bluetooth/hci_conn.c
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+++ b/net/bluetooth/hci_conn.c
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@@ -1276,14 +1276,6 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
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!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
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return 0;
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- /* The minimum encryption key size needs to be enforced by the
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- * host stack before establishing any L2CAP connections. The
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- * specification in theory allows a minimum of 1, but to align
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- * BR/EDR and LE transports, a minimum of 7 is chosen.
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- */
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- if (conn->enc_key_size < HCI_MIN_ENC_KEY_SIZE)
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- return 0;
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-
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return 1;
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}
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--
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2.21.0
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