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Bluetooth: Add bdaddr_list_with_flags for classic whitelist

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In order to more easily add device flags to classic devices, create
a new type of bdaddr_list that supports setting flags.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Abhishek Pandit-Subedi 2020-06-17 16:39:08 +02:00 committed by Johan Hedberg
parent aececa645d
commit 8baaa4038e
4 changed files with 81 additions and 8 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

14
include/net/bluetooth/hci_core.h
View file

@ -136,6 +136,13 @@ struct bdaddr_list_with_irk {
u8 local_irk[16];
};
struct bdaddr_list_with_flags {
struct list_head list;
bdaddr_t bdaddr;
u8 bdaddr_type;
u32 current_flags;
};
struct bt_uuid {
struct list_head list;
u8 uuid[16];
@ -1169,12 +1176,19 @@ struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
struct list_head *list, bdaddr_t *bdaddr,
u8 type);
struct bdaddr_list_with_flags *
hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
u8 type);
int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type, u8 *peer_irk, u8 *local_irk);
int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
u8 type, u32 flags);
int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type);
int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
u8 type);
void hci_bdaddr_list_clear(struct list_head *list);
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,

58
net/bluetooth/hci_core.c
View file

@ -3023,6 +3023,20 @@ struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
return NULL;
}
struct bdaddr_list_with_flags *
hci_bdaddr_list_lookup_with_flags(struct list_head *bdaddr_list,
bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list_with_flags *b;
list_for_each_entry(b, bdaddr_list, list) {
if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)
return b;
}
return NULL;
}
void hci_bdaddr_list_clear(struct list_head *bdaddr_list)
{
struct bdaddr_list *b, *n;
@ -3084,6 +3098,30 @@ int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
return 0;
}
int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
u8 type, u32 flags)
{
struct bdaddr_list_with_flags *entry;
if (!bacmp(bdaddr, BDADDR_ANY))
return -EBADF;
if (hci_bdaddr_list_lookup(list, bdaddr, type))
return -EEXIST;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
bacpy(&entry->bdaddr, bdaddr);
entry->bdaddr_type = type;
entry->current_flags = flags;
list_add(&entry->list, list);
return 0;
}
int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list *entry;
@ -3123,6 +3161,26 @@ int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
return 0;
}
int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
u8 type)
{
struct bdaddr_list_with_flags *entry;
if (!bacmp(bdaddr, BDADDR_ANY)) {
hci_bdaddr_list_clear(list);
return 0;
}
entry = hci_bdaddr_list_lookup_with_flags(list, bdaddr, type);
if (!entry)
return -ENOENT;
list_del(&entry->list);
kfree(entry);
return 0;
}
/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)

2
net/bluetooth/hci_event.c
View file

@ -2697,7 +2697,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
*/
if (hci_dev_test_flag(hdev, HCI_MGMT) &&
!hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
!hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
!hci_bdaddr_list_lookup_with_flags(&hdev->whitelist, &ev->bdaddr,
BDADDR_BREDR)) {
hci_reject_conn(hdev, &ev->bdaddr);
return;

5
net/bluetooth/mgmt.c
View file

@ -6000,8 +6000,9 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
cp->addr.type);
err = hci_bdaddr_list_add_with_flags(&hdev->whitelist,
&cp->addr.bdaddr,
cp->addr.type, 0);
if (err)
goto unlock;