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| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-06-17 13:07:38 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-06-20 13:53:42 +0200 |
| commit | 581370cc74ea75426421a1f5851ef05e2e995b01 (patch) | |
| tree | ab948401458c9bf87d5d350e04a2b74a825592a7 | |
| parent | c7262e711ae6e466baeb9ddc21d678c878469b1f (diff) | |
| download | blackbird-op-linux-581370cc74ea75426421a1f5851ef05e2e995b01.tar.gz blackbird-op-linux-581370cc74ea75426421a1f5851ef05e2e995b01.zip | |
Bluetooth: Refactor authentication method lookup into its own function
We'll need to do authentication method lookups from more than one place,
so refactor the lookup into its own function.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | net/bluetooth/smp.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 0189ec8b68d1..7156f4720644 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -385,6 +385,16 @@ static const u8 gen_method[5][5] = { { CFM_PASSKEY, CFM_PASSKEY, REQ_PASSKEY, JUST_WORKS, OVERLAP }, }; +static u8 get_auth_method(struct smp_chan *smp, u8 local_io, u8 remote_io) +{ + /* If either side has unknown io_caps, use JUST WORKS */ + if (local_io > SMP_IO_KEYBOARD_DISPLAY || + remote_io > SMP_IO_KEYBOARD_DISPLAY) + return JUST_WORKS; + + return gen_method[remote_io][local_io]; +} + static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, u8 local_io, u8 remote_io) { @@ -401,14 +411,11 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, BT_DBG("tk_request: auth:%d lcl:%d rem:%d", auth, local_io, remote_io); /* If neither side wants MITM, use JUST WORKS */ - /* If either side has unknown io_caps, use JUST WORKS */ /* Otherwise, look up method from the table */ - if (!(auth & SMP_AUTH_MITM) || - local_io > SMP_IO_KEYBOARD_DISPLAY || - remote_io > SMP_IO_KEYBOARD_DISPLAY) + if (!(auth & SMP_AUTH_MITM)) method = JUST_WORKS; else - method = gen_method[remote_io][local_io]; + method = get_auth_method(smp, local_io, remote_io); /* If not bonding, don't ask user to confirm a Zero TK */ if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM) |
