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Old 03-19-2012, 02:02 PM
Stefan Bader
 
Default ACK w/cmnt: Bluetooth: Fix l2cap conn failures for ssp devices

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On 19.03.2012 05:34, Ming Lei wrote:
> From 18daf1644e634bae951a6e3d4d19d89170209762 Mon Sep 17 00:00:00 2001
> From: Peter Hurley <peter@hurleysoftware.com> Date: Fri, 13 Jan 2012
> 15:11:30 +0100 Subject: [Oneiric SRU][PATCH] Bluetooth: Fix l2cap conn
> failures for ssp devices
>
> Commit 330605423c fixed l2cap conn establishment for non-ssp remote devices
> by not setting HCI_CONN_ENCRYPT_PEND every time conn security is tested
> (which was always returning failure on any subsequent security checks).
>
> However, this broke l2cap conn establishment for ssp remote devices when an
> ACL link was already established at SDP-level security. This fix ensures
> that encryption must be pending whenever authentication is also pending.
>
> BugLink: http://bugs.launchpad.net/bugs/872044 Upstream discusstion:
> http://marc.info/?t=131292188200002&r=1&w=2
>

I would not put the SRU justification into the commit message.

> Impact: cannot send files to other BT device Fix: can send files to other
> BT device
>
>
> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Tested-by: Daniel
> Wagner <daniel.wagner@bmw-carit.de> Acked-by: Marcel Holtmann
> <marcel@holtmann.org> Signed-off-by: Johan Hedberg
> <johan.hedberg@intel.com>

But add your s-o-b and use the generic cherry-pick format if it is one:

(cherry-picked from 18daf1644e634bae951a6e3d4d19d89170209762 upstream)
Signed-off-by: Ming Lei <ming.lei@canonical.com>

Otherwise looks ok and we already have picked and applied it for Precise.

Acked-by: Stefan Bader <stefan.bader@canonical.com>

> --- This wasn't cc:ed stable@kernel.org, but was merged to 3.3-rc6 as
> commit 18daf1644e634bae951a6e3d4d19d89170209762(Bluetooth : Fix l2cap conn
> failures for ssp devices). --- net/bluetooth/hci_conn.c | 4 ++++ 1 files
> changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index
> 3db4324..07bc69e 100644 --- a/net/bluetooth/hci_conn.c +++
> b/net/bluetooth/hci_conn.c @@ -635,6 +635,10 @@ static int
> hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
>
> if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { struct
> hci_cp_auth_requested cp; + + /* encrypt must be pending if auth is also
> pending */ + set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend); + cp.handle =
> cpu_to_le16(conn->handle); hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
> sizeof(cp), &cp);

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