diff options
| author |   Johan Hedberg <johan.hedberg@intel.com> | 2015-11-11 08:11:24 +0200 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2015-11-19 17:50:30 +0100 |
| commit | 591752afbcc8179979296698cae698541d2e5431 (patch) | |
| tree | 2d8f994e2bbb89e796ac7777ad2eeea0428dc3e6 /net/bluetooth | |
| parent | Bluetooth: Move LE scan disable/restart behind req_workqueue (diff) | |
| download | linux-dev-591752afbcc8179979296698cae698541d2e5431.tar.xz linux-dev-591752afbcc8179979296698cae698541d2e5431.zip | |
Bluetooth: Add discovery type validity helper
As preparation for moving the discovery HCI commands behind
req_workqueue, add a helper and do the validity checks of the given
discovery type before proceeding further. This way we don't need to do
them again in hci_request.c.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/mgmt.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index a229cfd0530e..e634b4d85249 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4375,6 +4375,33 @@ unlock: hci_dev_unlock(hdev); } +static bool discovery_type_is_valid(struct hci_dev *hdev, uint8_t type, + uint8_t *mgmt_status) +{ + switch (type) { + case DISCOV_TYPE_LE: + *mgmt_status = mgmt_le_support(hdev); + if (*mgmt_status) + return false; + break; + case DISCOV_TYPE_INTERLEAVED: + *mgmt_status = mgmt_le_support(hdev); + if (*mgmt_status) + return false; + /* Intentional fall-through */ + case DISCOV_TYPE_BREDR: + *mgmt_status = mgmt_bredr_support(hdev); + if (*mgmt_status) + return false; + break; + default: + *mgmt_status = MGMT_STATUS_INVALID_PARAMS; + return false; + } + + return true; +} + static int start_discovery(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { @@ -4403,6 +4430,12 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, goto failed; } + if (!discovery_type_is_valid(hdev, cp->type, &status)) { + err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY, + status, &cp->type, sizeof(cp->type)); + goto failed; + } + cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len); if (!cmd) { err = -ENOMEM; @@ -4502,6 +4535,13 @@ static int start_service_discovery(struct sock *sk, struct hci_dev *hdev, goto failed; } + if (!discovery_type_is_valid(hdev, cp->type, &status)) { + err = mgmt_cmd_complete(sk, hdev->id, + MGMT_OP_START_SERVICE_DISCOVERY, + status, &cp->type, sizeof(cp->type)); + goto failed; + } + cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY, hdev, data, len); if (!cmd) { |