![Jukka Rissanen](/assets/img/avatar_default.png)
This is initial version of http://tools.ietf.org/html/draft-ietf-6lo-btle-00 By default the 6LoWPAN support is not activated and user needs to tweak /sys/kernel/debug/bluetooth/hci0/6lowpan file. The kernel needs IPv6 support before 6LoWPAN is usable. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
1179 lines
32 KiB
C
1179 lines
32 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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#ifndef __HCI_CORE_H
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#define __HCI_CORE_H
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#include <net/bluetooth/hci.h>
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/* HCI priority */
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#define HCI_PRIO_MAX 7
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/* HCI Core structures */
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struct inquiry_data {
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bdaddr_t bdaddr;
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__u8 pscan_rep_mode;
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__u8 pscan_period_mode;
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__u8 pscan_mode;
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__u8 dev_class[3];
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__le16 clock_offset;
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__s8 rssi;
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__u8 ssp_mode;
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};
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struct inquiry_entry {
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struct list_head all; /* inq_cache.all */
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struct list_head list; /* unknown or resolve */
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enum {
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NAME_NOT_KNOWN,
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NAME_NEEDED,
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NAME_PENDING,
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NAME_KNOWN,
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} name_state;
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__u32 timestamp;
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struct inquiry_data data;
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};
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struct discovery_state {
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int type;
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enum {
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DISCOVERY_STOPPED,
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DISCOVERY_STARTING,
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DISCOVERY_FINDING,
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DISCOVERY_RESOLVING,
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DISCOVERY_STOPPING,
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} state;
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struct list_head all; /* All devices found during inquiry */
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struct list_head unknown; /* Name state not known */
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struct list_head resolve; /* Name needs to be resolved */
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__u32 timestamp;
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};
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struct hci_conn_hash {
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struct list_head list;
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unsigned int acl_num;
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unsigned int amp_num;
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unsigned int sco_num;
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unsigned int le_num;
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};
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struct bdaddr_list {
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struct list_head list;
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bdaddr_t bdaddr;
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u8 bdaddr_type;
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};
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struct bt_uuid {
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struct list_head list;
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u8 uuid[16];
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u8 size;
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u8 svc_hint;
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};
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struct smp_ltk {
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struct list_head list;
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bdaddr_t bdaddr;
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u8 bdaddr_type;
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u8 authenticated;
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u8 type;
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u8 enc_size;
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__le16 ediv;
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u8 rand[8];
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u8 val[16];
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} __packed;
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struct link_key {
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struct list_head list;
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bdaddr_t bdaddr;
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u8 type;
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u8 val[HCI_LINK_KEY_SIZE];
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u8 pin_len;
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};
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struct oob_data {
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struct list_head list;
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bdaddr_t bdaddr;
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u8 hash[16];
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u8 randomizer[16];
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};
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#define HCI_MAX_SHORT_NAME_LENGTH 10
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struct amp_assoc {
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__u16 len;
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__u16 offset;
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__u16 rem_len;
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__u16 len_so_far;
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__u8 data[HCI_MAX_AMP_ASSOC_SIZE];
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};
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#define HCI_MAX_PAGES 3
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#define NUM_REASSEMBLY 4
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struct hci_dev {
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struct list_head list;
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struct mutex lock;
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char name[8];
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unsigned long flags;
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__u16 id;
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__u8 bus;
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__u8 dev_type;
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bdaddr_t bdaddr;
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bdaddr_t static_addr;
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__u8 own_addr_type;
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__u8 dev_name[HCI_MAX_NAME_LENGTH];
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__u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
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__u8 eir[HCI_MAX_EIR_LENGTH];
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__u8 dev_class[3];
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__u8 major_class;
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__u8 minor_class;
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__u8 max_page;
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__u8 features[HCI_MAX_PAGES][8];
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__u8 le_features[8];
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__u8 le_white_list_size;
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__u8 le_states[8];
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__u8 commands[64];
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__u8 hci_ver;
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__u16 hci_rev;
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__u8 lmp_ver;
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__u16 manufacturer;
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__u16 lmp_subver;
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__u16 voice_setting;
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__u8 num_iac;
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__u8 io_capability;
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__s8 inq_tx_power;
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__u16 page_scan_interval;
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__u16 page_scan_window;
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__u8 page_scan_type;
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__u16 le_scan_interval;
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__u16 le_scan_window;
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__u16 le_conn_min_interval;
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__u16 le_conn_max_interval;
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__u8 ssp_debug_mode;
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__u16 devid_source;
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__u16 devid_vendor;
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__u16 devid_product;
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__u16 devid_version;
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__u16 pkt_type;
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__u16 esco_type;
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__u16 link_policy;
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__u16 link_mode;
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__u32 idle_timeout;
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__u16 sniff_min_interval;
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__u16 sniff_max_interval;
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__u8 amp_status;
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__u32 amp_total_bw;
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__u32 amp_max_bw;
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__u32 amp_min_latency;
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__u32 amp_max_pdu;
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__u8 amp_type;
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__u16 amp_pal_cap;
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__u16 amp_assoc_size;
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__u32 amp_max_flush_to;
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__u32 amp_be_flush_to;
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struct amp_assoc loc_assoc;
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__u8 flow_ctl_mode;
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unsigned int auto_accept_delay;
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unsigned long quirks;
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atomic_t cmd_cnt;
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unsigned int acl_cnt;
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unsigned int sco_cnt;
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unsigned int le_cnt;
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unsigned int acl_mtu;
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unsigned int sco_mtu;
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unsigned int le_mtu;
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unsigned int acl_pkts;
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unsigned int sco_pkts;
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unsigned int le_pkts;
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__u16 block_len;
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__u16 block_mtu;
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__u16 num_blocks;
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__u16 block_cnt;
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unsigned long acl_last_tx;
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unsigned long sco_last_tx;
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unsigned long le_last_tx;
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struct workqueue_struct *workqueue;
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struct workqueue_struct *req_workqueue;
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struct work_struct power_on;
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struct delayed_work power_off;
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__u16 discov_timeout;
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struct delayed_work discov_off;
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struct delayed_work service_cache;
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struct timer_list cmd_timer;
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struct work_struct rx_work;
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struct work_struct cmd_work;
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struct work_struct tx_work;
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struct sk_buff_head rx_q;
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struct sk_buff_head raw_q;
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struct sk_buff_head cmd_q;
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struct sk_buff *recv_evt;
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struct sk_buff *sent_cmd;
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struct sk_buff *reassembly[NUM_REASSEMBLY];
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struct mutex req_lock;
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wait_queue_head_t req_wait_q;
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__u32 req_status;
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__u32 req_result;
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struct list_head mgmt_pending;
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struct discovery_state discovery;
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struct hci_conn_hash conn_hash;
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struct list_head blacklist;
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struct list_head uuids;
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struct list_head link_keys;
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struct list_head long_term_keys;
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struct list_head remote_oob_data;
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struct hci_dev_stats stat;
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atomic_t promisc;
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struct dentry *debugfs;
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struct device dev;
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struct rfkill *rfkill;
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unsigned long dev_flags;
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struct delayed_work le_scan_disable;
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__s8 adv_tx_power;
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__u8 adv_data[HCI_MAX_AD_LENGTH];
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__u8 adv_data_len;
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__u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
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__u8 scan_rsp_data_len;
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int (*open)(struct hci_dev *hdev);
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int (*close)(struct hci_dev *hdev);
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int (*flush)(struct hci_dev *hdev);
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int (*setup)(struct hci_dev *hdev);
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int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
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void (*notify)(struct hci_dev *hdev, unsigned int evt);
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};
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#define HCI_PHY_HANDLE(handle) (handle & 0xff)
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struct hci_conn {
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struct list_head list;
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atomic_t refcnt;
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bdaddr_t dst;
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__u8 dst_type;
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bdaddr_t src;
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__u8 src_type;
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__u16 handle;
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__u16 state;
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__u8 mode;
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__u8 type;
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bool out;
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__u8 attempt;
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__u8 dev_class[3];
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__u8 features[HCI_MAX_PAGES][8];
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__u16 pkt_type;
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__u16 link_policy;
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__u32 link_mode;
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__u8 key_type;
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__u8 auth_type;
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__u8 sec_level;
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__u8 pending_sec_level;
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__u8 pin_length;
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__u8 enc_key_size;
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__u8 io_capability;
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__u32 passkey_notify;
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__u8 passkey_entered;
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__u16 disc_timeout;
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__u16 setting;
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unsigned long flags;
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__u8 remote_cap;
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__u8 remote_auth;
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__u8 remote_id;
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bool flush_key;
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unsigned int sent;
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struct sk_buff_head data_q;
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struct list_head chan_list;
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struct delayed_work disc_work;
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struct delayed_work auto_accept_work;
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struct delayed_work idle_work;
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struct device dev;
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struct hci_dev *hdev;
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void *l2cap_data;
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void *sco_data;
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void *smp_conn;
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struct amp_mgr *amp_mgr;
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struct hci_conn *link;
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void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
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void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
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void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
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};
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struct hci_chan {
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struct list_head list;
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__u16 handle;
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struct hci_conn *conn;
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struct sk_buff_head data_q;
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unsigned int sent;
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__u8 state;
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};
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extern struct list_head hci_dev_list;
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extern struct list_head hci_cb_list;
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extern rwlock_t hci_dev_list_lock;
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extern rwlock_t hci_cb_list_lock;
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/* ----- HCI interface to upper protocols ----- */
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int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
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void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
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int l2cap_disconn_ind(struct hci_conn *hcon);
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void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
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int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
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int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
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int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
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void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
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void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
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int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
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/* ----- Inquiry cache ----- */
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#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
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#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
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static inline void discovery_init(struct hci_dev *hdev)
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{
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hdev->discovery.state = DISCOVERY_STOPPED;
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INIT_LIST_HEAD(&hdev->discovery.all);
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INIT_LIST_HEAD(&hdev->discovery.unknown);
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INIT_LIST_HEAD(&hdev->discovery.resolve);
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}
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bool hci_discovery_active(struct hci_dev *hdev);
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void hci_discovery_set_state(struct hci_dev *hdev, int state);
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static inline int inquiry_cache_empty(struct hci_dev *hdev)
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{
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return list_empty(&hdev->discovery.all);
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}
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static inline long inquiry_cache_age(struct hci_dev *hdev)
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{
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struct discovery_state *c = &hdev->discovery;
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return jiffies - c->timestamp;
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}
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static inline long inquiry_entry_age(struct inquiry_entry *e)
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{
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return jiffies - e->timestamp;
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}
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struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
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bdaddr_t *bdaddr);
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struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
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bdaddr_t *bdaddr);
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struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
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bdaddr_t *bdaddr,
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int state);
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void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
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struct inquiry_entry *ie);
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bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
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bool name_known, bool *ssp);
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void hci_inquiry_cache_flush(struct hci_dev *hdev);
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/* ----- HCI Connections ----- */
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enum {
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HCI_CONN_AUTH_PEND,
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HCI_CONN_REAUTH_PEND,
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HCI_CONN_ENCRYPT_PEND,
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HCI_CONN_RSWITCH_PEND,
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HCI_CONN_MODE_CHANGE_PEND,
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HCI_CONN_SCO_SETUP_PEND,
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HCI_CONN_LE_SMP_PEND,
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HCI_CONN_MGMT_CONNECTED,
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HCI_CONN_SSP_ENABLED,
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HCI_CONN_POWER_SAVE,
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HCI_CONN_REMOTE_OOB,
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HCI_CONN_6LOWPAN,
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};
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static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
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{
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struct hci_dev *hdev = conn->hdev;
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return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
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test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
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}
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static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
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{
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struct hci_conn_hash *h = &hdev->conn_hash;
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list_add_rcu(&c->list, &h->list);
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switch (c->type) {
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case ACL_LINK:
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h->acl_num++;
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break;
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case AMP_LINK:
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h->amp_num++;
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break;
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case LE_LINK:
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h->le_num++;
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break;
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case SCO_LINK:
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case ESCO_LINK:
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h->sco_num++;
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break;
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}
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}
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static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
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{
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struct hci_conn_hash *h = &hdev->conn_hash;
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list_del_rcu(&c->list);
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synchronize_rcu();
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switch (c->type) {
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case ACL_LINK:
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h->acl_num--;
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break;
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case AMP_LINK:
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h->amp_num--;
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break;
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case LE_LINK:
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h->le_num--;
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break;
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case SCO_LINK:
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case ESCO_LINK:
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h->sco_num--;
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break;
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}
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}
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static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
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{
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struct hci_conn_hash *h = &hdev->conn_hash;
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switch (type) {
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case ACL_LINK:
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return h->acl_num;
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case AMP_LINK:
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return h->amp_num;
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case LE_LINK:
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return h->le_num;
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case SCO_LINK:
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case ESCO_LINK:
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return h->sco_num;
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default:
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return 0;
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}
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}
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static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
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__u16 handle)
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{
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struct hci_conn_hash *h = &hdev->conn_hash;
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struct hci_conn *c;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(c, &h->list, list) {
|
|
if (c->handle == handle) {
|
|
rcu_read_unlock();
|
|
return c;
|
|
}
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
|
|
__u8 type, bdaddr_t *ba)
|
|
{
|
|
struct hci_conn_hash *h = &hdev->conn_hash;
|
|
struct hci_conn *c;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(c, &h->list, list) {
|
|
if (c->type == type && !bacmp(&c->dst, ba)) {
|
|
rcu_read_unlock();
|
|
return c;
|
|
}
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
|
|
__u8 type, __u16 state)
|
|
{
|
|
struct hci_conn_hash *h = &hdev->conn_hash;
|
|
struct hci_conn *c;
|
|
|
|
rcu_read_lock();
|
|
|
|
list_for_each_entry_rcu(c, &h->list, list) {
|
|
if (c->type == type && c->state == state) {
|
|
rcu_read_unlock();
|
|
return c;
|
|
}
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void hci_disconnect(struct hci_conn *conn, __u8 reason);
|
|
bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
|
|
void hci_sco_setup(struct hci_conn *conn, __u8 status);
|
|
|
|
struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
|
|
int hci_conn_del(struct hci_conn *conn);
|
|
void hci_conn_hash_flush(struct hci_dev *hdev);
|
|
void hci_conn_check_pending(struct hci_dev *hdev);
|
|
|
|
struct hci_chan *hci_chan_create(struct hci_conn *conn);
|
|
void hci_chan_del(struct hci_chan *chan);
|
|
void hci_chan_list_flush(struct hci_conn *conn);
|
|
struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
|
|
|
|
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
|
|
__u8 dst_type, __u8 sec_level, __u8 auth_type);
|
|
struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
|
|
__u16 setting);
|
|
int hci_conn_check_link_mode(struct hci_conn *conn);
|
|
int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
|
|
int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
|
|
int hci_conn_change_link_key(struct hci_conn *conn);
|
|
int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
|
|
|
|
void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
|
|
|
|
/*
|
|
* hci_conn_get() and hci_conn_put() are used to control the life-time of an
|
|
* "hci_conn" object. They do not guarantee that the hci_conn object is running,
|
|
* working or anything else. They just guarantee that the object is available
|
|
* and can be dereferenced. So you can use its locks, local variables and any
|
|
* other constant data.
|
|
* Before accessing runtime data, you _must_ lock the object and then check that
|
|
* it is still running. As soon as you release the locks, the connection might
|
|
* get dropped, though.
|
|
*
|
|
* On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
|
|
* how long the underlying connection is held. So every channel that runs on the
|
|
* hci_conn object calls this to prevent the connection from disappearing. As
|
|
* long as you hold a device, you must also guarantee that you have a valid
|
|
* reference to the device via hci_conn_get() (or the initial reference from
|
|
* hci_conn_add()).
|
|
* The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
|
|
* break because nobody cares for that. But this means, we cannot use
|
|
* _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
|
|
*/
|
|
|
|
static inline void hci_conn_get(struct hci_conn *conn)
|
|
{
|
|
get_device(&conn->dev);
|
|
}
|
|
|
|
static inline void hci_conn_put(struct hci_conn *conn)
|
|
{
|
|
put_device(&conn->dev);
|
|
}
|
|
|
|
static inline void hci_conn_hold(struct hci_conn *conn)
|
|
{
|
|
BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
|
|
|
|
atomic_inc(&conn->refcnt);
|
|
cancel_delayed_work(&conn->disc_work);
|
|
}
|
|
|
|
static inline void hci_conn_drop(struct hci_conn *conn)
|
|
{
|
|
BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
|
|
|
|
if (atomic_dec_and_test(&conn->refcnt)) {
|
|
unsigned long timeo;
|
|
|
|
switch (conn->type) {
|
|
case ACL_LINK:
|
|
case LE_LINK:
|
|
cancel_delayed_work(&conn->idle_work);
|
|
if (conn->state == BT_CONNECTED) {
|
|
timeo = conn->disc_timeout;
|
|
if (!conn->out)
|
|
timeo *= 2;
|
|
} else {
|
|
timeo = msecs_to_jiffies(10);
|
|
}
|
|
break;
|
|
|
|
case AMP_LINK:
|
|
timeo = conn->disc_timeout;
|
|
break;
|
|
|
|
default:
|
|
timeo = msecs_to_jiffies(10);
|
|
break;
|
|
}
|
|
|
|
cancel_delayed_work(&conn->disc_work);
|
|
queue_delayed_work(conn->hdev->workqueue,
|
|
&conn->disc_work, timeo);
|
|
}
|
|
}
|
|
|
|
/* ----- HCI Devices ----- */
|
|
static inline void hci_dev_put(struct hci_dev *d)
|
|
{
|
|
BT_DBG("%s orig refcnt %d", d->name,
|
|
atomic_read(&d->dev.kobj.kref.refcount));
|
|
|
|
put_device(&d->dev);
|
|
}
|
|
|
|
static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
|
|
{
|
|
BT_DBG("%s orig refcnt %d", d->name,
|
|
atomic_read(&d->dev.kobj.kref.refcount));
|
|
|
|
get_device(&d->dev);
|
|
return d;
|
|
}
|
|
|
|
#define hci_dev_lock(d) mutex_lock(&d->lock)
|
|
#define hci_dev_unlock(d) mutex_unlock(&d->lock)
|
|
|
|
#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
|
|
#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
|
|
|
|
static inline void *hci_get_drvdata(struct hci_dev *hdev)
|
|
{
|
|
return dev_get_drvdata(&hdev->dev);
|
|
}
|
|
|
|
static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
|
|
{
|
|
dev_set_drvdata(&hdev->dev, data);
|
|
}
|
|
|
|
struct hci_dev *hci_dev_get(int index);
|
|
struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
|
|
|
|
struct hci_dev *hci_alloc_dev(void);
|
|
void hci_free_dev(struct hci_dev *hdev);
|
|
int hci_register_dev(struct hci_dev *hdev);
|
|
void hci_unregister_dev(struct hci_dev *hdev);
|
|
int hci_suspend_dev(struct hci_dev *hdev);
|
|
int hci_resume_dev(struct hci_dev *hdev);
|
|
int hci_dev_open(__u16 dev);
|
|
int hci_dev_close(__u16 dev);
|
|
int hci_dev_reset(__u16 dev);
|
|
int hci_dev_reset_stat(__u16 dev);
|
|
int hci_dev_cmd(unsigned int cmd, void __user *arg);
|
|
int hci_get_dev_list(void __user *arg);
|
|
int hci_get_dev_info(void __user *arg);
|
|
int hci_get_conn_list(void __user *arg);
|
|
int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
|
|
int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
|
|
int hci_inquiry(void __user *arg);
|
|
|
|
struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
|
|
bdaddr_t *bdaddr, u8 type);
|
|
int hci_blacklist_clear(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);
|
|
|
|
int hci_uuids_clear(struct hci_dev *hdev);
|
|
|
|
int hci_link_keys_clear(struct hci_dev *hdev);
|
|
struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
|
|
int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
|
|
bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
|
|
struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
|
|
int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
|
|
int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
|
|
__le16 ediv, u8 rand[8]);
|
|
struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 addr_type);
|
|
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
|
|
int hci_smp_ltks_clear(struct hci_dev *hdev);
|
|
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
|
|
|
|
int hci_remote_oob_data_clear(struct hci_dev *hdev);
|
|
struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
|
|
bdaddr_t *bdaddr);
|
|
int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
|
|
u8 *randomizer);
|
|
int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
|
|
|
|
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
|
|
|
|
int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
|
|
int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
|
|
int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
|
|
|
|
void hci_init_sysfs(struct hci_dev *hdev);
|
|
void hci_conn_init_sysfs(struct hci_conn *conn);
|
|
void hci_conn_add_sysfs(struct hci_conn *conn);
|
|
void hci_conn_del_sysfs(struct hci_conn *conn);
|
|
|
|
#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
|
|
|
|
/* ----- LMP capabilities ----- */
|
|
#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
|
|
#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
|
|
#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
|
|
#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
|
|
#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
|
|
#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
|
|
#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
|
|
#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
|
|
#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
|
|
#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
|
|
#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
|
|
#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
|
|
#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
|
|
#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
|
|
#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
|
|
#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
|
|
#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
|
|
#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
|
|
#define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
|
|
|
|
/* ----- Extended LMP capabilities ----- */
|
|
#define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
|
|
#define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
|
|
#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
|
|
#define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
|
|
|
|
/* ----- Host capabilities ----- */
|
|
#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
|
|
#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
|
|
#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
|
|
|
|
/* ----- HCI protocols ----- */
|
|
#define HCI_PROTO_DEFER 0x01
|
|
|
|
static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
__u8 type, __u8 *flags)
|
|
{
|
|
switch (type) {
|
|
case ACL_LINK:
|
|
return l2cap_connect_ind(hdev, bdaddr);
|
|
|
|
case SCO_LINK:
|
|
case ESCO_LINK:
|
|
return sco_connect_ind(hdev, bdaddr, flags);
|
|
|
|
default:
|
|
BT_ERR("unknown link type %d", type);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
|
|
{
|
|
switch (conn->type) {
|
|
case ACL_LINK:
|
|
case LE_LINK:
|
|
l2cap_connect_cfm(conn, status);
|
|
break;
|
|
|
|
case SCO_LINK:
|
|
case ESCO_LINK:
|
|
sco_connect_cfm(conn, status);
|
|
break;
|
|
|
|
default:
|
|
BT_ERR("unknown link type %d", conn->type);
|
|
break;
|
|
}
|
|
|
|
if (conn->connect_cfm_cb)
|
|
conn->connect_cfm_cb(conn, status);
|
|
}
|
|
|
|
static inline int hci_proto_disconn_ind(struct hci_conn *conn)
|
|
{
|
|
if (conn->type != ACL_LINK && conn->type != LE_LINK)
|
|
return HCI_ERROR_REMOTE_USER_TERM;
|
|
|
|
return l2cap_disconn_ind(conn);
|
|
}
|
|
|
|
static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
|
|
{
|
|
switch (conn->type) {
|
|
case ACL_LINK:
|
|
case LE_LINK:
|
|
l2cap_disconn_cfm(conn, reason);
|
|
break;
|
|
|
|
case SCO_LINK:
|
|
case ESCO_LINK:
|
|
sco_disconn_cfm(conn, reason);
|
|
break;
|
|
|
|
/* L2CAP would be handled for BREDR chan */
|
|
case AMP_LINK:
|
|
break;
|
|
|
|
default:
|
|
BT_ERR("unknown link type %d", conn->type);
|
|
break;
|
|
}
|
|
|
|
if (conn->disconn_cfm_cb)
|
|
conn->disconn_cfm_cb(conn, reason);
|
|
}
|
|
|
|
static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
|
|
{
|
|
__u8 encrypt;
|
|
|
|
if (conn->type != ACL_LINK && conn->type != LE_LINK)
|
|
return;
|
|
|
|
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
|
|
return;
|
|
|
|
encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
|
|
l2cap_security_cfm(conn, status, encrypt);
|
|
|
|
if (conn->security_cfm_cb)
|
|
conn->security_cfm_cb(conn, status);
|
|
}
|
|
|
|
static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
|
|
__u8 encrypt)
|
|
{
|
|
if (conn->type != ACL_LINK && conn->type != LE_LINK)
|
|
return;
|
|
|
|
l2cap_security_cfm(conn, status, encrypt);
|
|
|
|
if (conn->security_cfm_cb)
|
|
conn->security_cfm_cb(conn, status);
|
|
}
|
|
|
|
/* ----- HCI callbacks ----- */
|
|
struct hci_cb {
|
|
struct list_head list;
|
|
|
|
char *name;
|
|
|
|
void (*security_cfm) (struct hci_conn *conn, __u8 status,
|
|
__u8 encrypt);
|
|
void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
|
|
void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
|
|
};
|
|
|
|
static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
|
|
{
|
|
struct hci_cb *cb;
|
|
__u8 encrypt;
|
|
|
|
hci_proto_auth_cfm(conn, status);
|
|
|
|
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
|
|
return;
|
|
|
|
encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
|
|
|
|
read_lock(&hci_cb_list_lock);
|
|
list_for_each_entry(cb, &hci_cb_list, list) {
|
|
if (cb->security_cfm)
|
|
cb->security_cfm(conn, status, encrypt);
|
|
}
|
|
read_unlock(&hci_cb_list_lock);
|
|
}
|
|
|
|
static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
|
|
__u8 encrypt)
|
|
{
|
|
struct hci_cb *cb;
|
|
|
|
if (conn->sec_level == BT_SECURITY_SDP)
|
|
conn->sec_level = BT_SECURITY_LOW;
|
|
|
|
if (conn->pending_sec_level > conn->sec_level)
|
|
conn->sec_level = conn->pending_sec_level;
|
|
|
|
hci_proto_encrypt_cfm(conn, status, encrypt);
|
|
|
|
read_lock(&hci_cb_list_lock);
|
|
list_for_each_entry(cb, &hci_cb_list, list) {
|
|
if (cb->security_cfm)
|
|
cb->security_cfm(conn, status, encrypt);
|
|
}
|
|
read_unlock(&hci_cb_list_lock);
|
|
}
|
|
|
|
static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
|
|
{
|
|
struct hci_cb *cb;
|
|
|
|
read_lock(&hci_cb_list_lock);
|
|
list_for_each_entry(cb, &hci_cb_list, list) {
|
|
if (cb->key_change_cfm)
|
|
cb->key_change_cfm(conn, status);
|
|
}
|
|
read_unlock(&hci_cb_list_lock);
|
|
}
|
|
|
|
static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
|
|
__u8 role)
|
|
{
|
|
struct hci_cb *cb;
|
|
|
|
read_lock(&hci_cb_list_lock);
|
|
list_for_each_entry(cb, &hci_cb_list, list) {
|
|
if (cb->role_switch_cfm)
|
|
cb->role_switch_cfm(conn, status, role);
|
|
}
|
|
read_unlock(&hci_cb_list_lock);
|
|
}
|
|
|
|
static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
|
|
{
|
|
size_t parsed = 0;
|
|
|
|
if (data_len < 2)
|
|
return false;
|
|
|
|
while (parsed < data_len - 1) {
|
|
u8 field_len = data[0];
|
|
|
|
if (field_len == 0)
|
|
break;
|
|
|
|
parsed += field_len + 1;
|
|
|
|
if (parsed > data_len)
|
|
break;
|
|
|
|
if (data[1] == type)
|
|
return true;
|
|
|
|
data += field_len + 1;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
int hci_register_cb(struct hci_cb *hcb);
|
|
int hci_unregister_cb(struct hci_cb *hcb);
|
|
|
|
struct hci_request {
|
|
struct hci_dev *hdev;
|
|
struct sk_buff_head cmd_q;
|
|
|
|
/* If something goes wrong when building the HCI request, the error
|
|
* value is stored in this field.
|
|
*/
|
|
int err;
|
|
};
|
|
|
|
void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
|
|
int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
|
|
void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
|
|
const void *param);
|
|
void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
|
|
const void *param, u8 event);
|
|
void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
|
|
|
|
struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
|
|
const void *param, u32 timeout);
|
|
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
|
|
const void *param, u8 event, u32 timeout);
|
|
|
|
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
|
|
const void *param);
|
|
void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
|
|
void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
|
|
|
|
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
|
|
|
|
/* ----- HCI Sockets ----- */
|
|
void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
|
|
void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
|
|
void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
|
|
|
|
void hci_sock_dev_event(struct hci_dev *hdev, int event);
|
|
|
|
/* Management interface */
|
|
#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
|
|
#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
|
|
BIT(BDADDR_LE_RANDOM))
|
|
#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
|
|
BIT(BDADDR_LE_PUBLIC) | \
|
|
BIT(BDADDR_LE_RANDOM))
|
|
|
|
/* These LE scan and inquiry parameters were chosen according to LE General
|
|
* Discovery Procedure specification.
|
|
*/
|
|
#define DISCOV_LE_SCAN_WIN 0x12
|
|
#define DISCOV_LE_SCAN_INT 0x12
|
|
#define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240)
|
|
#define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120)
|
|
#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
|
|
#define DISCOV_BREDR_INQUIRY_LEN 0x08
|
|
|
|
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
|
|
void mgmt_index_added(struct hci_dev *hdev);
|
|
void mgmt_index_removed(struct hci_dev *hdev);
|
|
void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
|
|
int mgmt_powered(struct hci_dev *hdev, u8 powered);
|
|
void mgmt_discoverable_timeout(struct hci_dev *hdev);
|
|
void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
|
|
void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
|
|
void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
|
|
void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
|
|
bool persistent);
|
|
void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
|
|
u8 addr_type, u32 flags, u8 *name, u8 name_len,
|
|
u8 *dev_class);
|
|
void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 reason);
|
|
void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 status);
|
|
void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
|
|
u8 addr_type, u8 status);
|
|
void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
|
|
void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 status);
|
|
void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 status);
|
|
int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, __le32 value,
|
|
u8 confirm_hint);
|
|
int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 status);
|
|
int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 status);
|
|
int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type);
|
|
int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 status);
|
|
int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u8 status);
|
|
int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
|
|
u8 link_type, u8 addr_type, u32 passkey,
|
|
u8 entered);
|
|
void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
|
|
u8 addr_type, u8 status);
|
|
void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
|
|
void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
|
|
void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
|
|
u8 status);
|
|
void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
|
|
void mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
|
|
u8 *randomizer, u8 status);
|
|
void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
|
|
u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
|
|
u8 ssp, u8 *eir, u16 eir_len);
|
|
void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
|
|
u8 addr_type, s8 rssi, u8 *name, u8 name_len);
|
|
void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
|
|
int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
|
|
int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
|
|
void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
|
|
void mgmt_reenable_advertising(struct hci_dev *hdev);
|
|
|
|
/* HCI info for socket */
|
|
#define hci_pi(sk) ((struct hci_pinfo *) sk)
|
|
|
|
struct hci_pinfo {
|
|
struct bt_sock bt;
|
|
struct hci_dev *hdev;
|
|
struct hci_filter filter;
|
|
__u32 cmsg_mask;
|
|
unsigned short channel;
|
|
};
|
|
|
|
/* HCI security filter */
|
|
#define HCI_SFLT_MAX_OGF 5
|
|
|
|
struct hci_sec_filter {
|
|
__u32 type_mask;
|
|
__u32 event_mask[2];
|
|
__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
|
|
};
|
|
|
|
/* ----- HCI requests ----- */
|
|
#define HCI_REQ_DONE 0
|
|
#define HCI_REQ_PEND 1
|
|
#define HCI_REQ_CANCELED 2
|
|
|
|
#define hci_req_lock(d) mutex_lock(&d->req_lock)
|
|
#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
|
|
|
|
void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
|
|
u16 latency, u16 to_multiplier);
|
|
void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
|
|
__u8 ltk[16]);
|
|
|
|
#define SCO_AIRMODE_MASK 0x0003
|
|
#define SCO_AIRMODE_CVSD 0x0000
|
|
#define SCO_AIRMODE_TRANSP 0x0003
|
|
|
|
#endif /* __HCI_CORE_H */
|