From 3175405b906a85ed2bad21e09c444266e4a05a8e Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 4 Jan 2012 13:39:52 +0200 Subject: [PATCH] Bluetooth: Return updated name state with hci_inquiry_cache_update If user-space has already confirmed the name for a remote device we shouldn't request confirmation again. The simplest way to do this is to return the name state from hci_inquiry_cache_update (if it is anything else than unknown then we do not need confirmation from user-space). Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 2 +- net/bluetooth/hci_core.c | 9 +++++++-- net/bluetooth/hci_event.c | 21 ++++++++++++++------- 3 files changed, 22 insertions(+), 10 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 2999b6e2c3f0..236f7f0e596e 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -384,7 +384,7 @@ struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, bdaddr_t *bdaddr); -void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, +bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, bool name_known); /* ----- HCI Connections ----- */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index fc09a3cbe20c..162176151db9 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -400,7 +400,7 @@ struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, return NULL; } -void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, +bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, bool name_known) { struct inquiry_cache *cache = &hdev->inq_cache; @@ -415,7 +415,7 @@ void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, /* Entry not in the cache. Add new one. */ ie = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC); if (!ie) - return; + return false; list_add(&ie->all, &cache->all); @@ -436,6 +436,11 @@ update: memcpy(&ie->data, data, sizeof(*data)); ie->timestamp = jiffies; cache->timestamp = jiffies; + + if (ie->name_state == NAME_NOT_KNOWN) + return false; + + return true; } static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 9302c3c25568..d4d20df9fbbf 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1525,6 +1525,8 @@ static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff * hci_dev_lock(hdev); for (; num_rsp; num_rsp--, info++) { + bool name_known; + bacpy(&data.bdaddr, &info->bdaddr); data.pscan_rep_mode = info->pscan_rep_mode; data.pscan_period_mode = info->pscan_period_mode; @@ -1533,9 +1535,10 @@ static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff * data.clock_offset = info->clock_offset; data.rssi = 0x00; data.ssp_mode = 0x00; - hci_inquiry_cache_update(hdev, &data, false); + + name_known = hci_inquiry_cache_update(hdev, &data, false); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, - info->dev_class, 0, 1, NULL); + info->dev_class, 0, !name_known, NULL); } hci_dev_unlock(hdev); @@ -2551,6 +2554,7 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct { struct inquiry_data data; int num_rsp = *((__u8 *) skb->data); + bool name_known; BT_DBG("%s num_rsp %d", hdev->name, num_rsp); @@ -2572,10 +2576,12 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct data.clock_offset = info->clock_offset; data.rssi = info->rssi; data.ssp_mode = 0x00; - hci_inquiry_cache_update(hdev, &data, false); + + name_known = hci_inquiry_cache_update(hdev, &data, + false); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, info->dev_class, info->rssi, - 1, NULL); + !name_known, NULL); } } else { struct inquiry_info_with_rssi *info = (void *) (skb->data + 1); @@ -2589,10 +2595,11 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct data.clock_offset = info->clock_offset; data.rssi = info->rssi; data.ssp_mode = 0x00; - hci_inquiry_cache_update(hdev, &data, false); + name_known = hci_inquiry_cache_update(hdev, &data, + false); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, info->dev_class, info->rssi, - 1, NULL); + !name_known, NULL); } } @@ -2766,7 +2773,7 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct else name_known = true; - hci_inquiry_cache_update(hdev, &data, name_known); + name_known = hci_inquiry_cache_update(hdev, &data, name_known); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, info->dev_class, info->rssi, !name_known, info->data); -- 2.20.1