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Bluetooth: Add support for storing LE white list entries

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The current LE white list entries require storing in the HCI controller
structure. So provide a storage and access functions for it. In addition
export the current list via debugfs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-02-27 20:37:30 -08:00 committed by Johan Hedberg
parent 747d3f0301
commit d2ab0ac18d
2 changed files with 97 additions and 0 deletions
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7
include/net/bluetooth/hci_core.h
View file

@ -284,6 +284,7 @@ struct hci_dev {
struct list_head long_term_keys;
struct list_head identity_resolving_keys;
struct list_head remote_oob_data;
struct list_head le_white_list;
struct list_head le_conn_params;
struct list_head pend_le_conns;
@ -799,6 +800,12 @@ struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev,
bdaddr_t *bdaddr, u8 type);
void hci_white_list_clear(struct hci_dev *hdev);
int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type);
int hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,

90
net/bluetooth/hci_core.c
View file

@ -702,6 +702,31 @@ static const struct file_operations force_static_address_fops = {
.llseek = default_llseek,
};
static int white_list_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
struct bdaddr_list *b;
hci_dev_lock(hdev);
list_for_each_entry(b, &hdev->le_white_list, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
hci_dev_unlock(hdev);
return 0;
}
static int white_list_open(struct inode *inode, struct file *file)
{
return single_open(file, white_list_show, inode->i_private);
}
static const struct file_operations white_list_fops = {
.open = white_list_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int identity_resolving_keys_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@ -1786,6 +1811,8 @@ static int __hci_init(struct hci_dev *hdev)
debugfs_create_u8("white_list_size", 0444, hdev->debugfs,
&hdev->le_white_list_size);
debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
&white_list_fops);
debugfs_create_file("identity_resolving_keys", 0400,
hdev->debugfs, hdev,
&identity_resolving_keys_fops);
@ -3294,6 +3321,67 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
return mgmt_device_unblocked(hdev, bdaddr, type);
}
struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev,
bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list *b;
list_for_each_entry(b, &hdev->le_white_list, list) {
if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)
return b;
}
return NULL;
}
void hci_white_list_clear(struct hci_dev *hdev)
{
struct list_head *p, *n;
list_for_each_safe(p, n, &hdev->le_white_list) {
struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list);
list_del(p);
kfree(b);
}
}
int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list *entry;
if (!bacmp(bdaddr, BDADDR_ANY))
return -EBADF;
entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
if (!entry)
return -ENOMEM;
bacpy(&entry->bdaddr, bdaddr);
entry->bdaddr_type = type;
list_add(&entry->list, &hdev->le_white_list);
return 0;
}
int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list *entry;
if (!bacmp(bdaddr, BDADDR_ANY))
return -EBADF;
entry = hci_white_list_lookup(hdev, 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)
@ -3692,6 +3780,7 @@ struct hci_dev *hci_alloc_dev(void)
INIT_LIST_HEAD(&hdev->long_term_keys);
INIT_LIST_HEAD(&hdev->identity_resolving_keys);
INIT_LIST_HEAD(&hdev->remote_oob_data);
INIT_LIST_HEAD(&hdev->le_white_list);
INIT_LIST_HEAD(&hdev->le_conn_params);
INIT_LIST_HEAD(&hdev->pend_le_conns);
INIT_LIST_HEAD(&hdev->conn_hash.list);
@ -3894,6 +3983,7 @@ void hci_unregister_dev(struct hci_dev *hdev)
hci_smp_ltks_clear(hdev);
hci_smp_irks_clear(hdev);
hci_remote_oob_data_clear(hdev);
hci_white_list_clear(hdev);
hci_conn_params_clear(hdev);
hci_pend_le_conns_clear(hdev);
hci_dev_unlock(hdev);