Release 4.7 net/bluetooth/hci_conn.c
/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation;
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
/* Bluetooth HCI connection handling. */
#include <linux/export.h>
#include <linux/debugfs.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include "hci_request.h"
#include "smp.h"
#include "a2mp.h"
struct sco_param {
u16 pkt_type;
u16 max_latency;
u8 retrans_effort;
};
static const struct sco_param esco_param_cvsd[] = {
{ EDR_ESCO_MASK & ~ESCO_2EV3, 0x000a, 0x01 }, /* S3 */
{ EDR_ESCO_MASK & ~ESCO_2EV3, 0x0007, 0x01 }, /* S2 */
{ EDR_ESCO_MASK | ESCO_EV3, 0x0007, 0x01 }, /* S1 */
{ EDR_ESCO_MASK | ESCO_HV3, 0xffff, 0x01 }, /* D1 */
{ EDR_ESCO_MASK | ESCO_HV1, 0xffff, 0x01 }, /* D0 */
};
static const struct sco_param sco_param_cvsd[] = {
{ EDR_ESCO_MASK | ESCO_HV3, 0xffff, 0xff }, /* D1 */
{ EDR_ESCO_MASK | ESCO_HV1, 0xffff, 0xff }, /* D0 */
};
static const struct sco_param esco_param_msbc[] = {
{ EDR_ESCO_MASK & ~ESCO_2EV3, 0x000d, 0x02 }, /* T2 */
{ EDR_ESCO_MASK | ESCO_EV3, 0x0008, 0x02 }, /* T1 */
};
/* This function requires the caller holds hdev->lock */
static void hci_connect_le_scan_cleanup(struct hci_conn *conn)
{
struct hci_conn_params *params;
struct hci_dev *hdev = conn->hdev;
struct smp_irk *irk;
bdaddr_t *bdaddr;
u8 bdaddr_type;
bdaddr = &conn->dst;
bdaddr_type = conn->dst_type;
/* Check if we need to convert to identity address */
irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
if (irk) {
bdaddr = &irk->bdaddr;
bdaddr_type = irk->addr_type;
}
params = hci_pend_le_action_lookup(&hdev->pend_le_conns, bdaddr,
bdaddr_type);
if (!params || !params->explicit_connect)
return;
/* The connection attempt was doing scan for new RPA, and is
* in scan phase. If params are not associated with any other
* autoconnect action, remove them completely. If they are, just unmark
* them as waiting for connection, by clearing explicit_connect field.
*/
params->explicit_connect = false;
list_del_init(¶ms->action);
switch (params->auto_connect) {
case HCI_AUTO_CONN_EXPLICIT:
hci_conn_params_del(hdev, bdaddr, bdaddr_type);
/* return instead of break to avoid duplicate scan update */
return;
case HCI_AUTO_CONN_DIRECT:
case HCI_AUTO_CONN_ALWAYS:
list_add(¶ms->action, &hdev->pend_le_conns);
break;
case HCI_AUTO_CONN_REPORT:
list_add(¶ms->action, &hdev->pend_le_reports);
break;
default:
break;
}
hci_update_background_scan(hdev);
}
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jakub pawlowski | jakub pawlowski | 112 | 59.89% | 2 | 40.00% |
johan hedberg | johan hedberg | 75 | 40.11% | 3 | 60.00% |
| Total | 187 | 100.00% | 5 | 100.00% |
static void hci_conn_cleanup(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
if (test_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags))
hci_conn_params_del(conn->hdev, &conn->dst, conn->dst_type);
hci_chan_list_flush(conn);
hci_conn_hash_del(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
hci_conn_del_sysfs(conn);
debugfs_remove_recursive(conn->debugfs);
hci_dev_put(hdev);
hci_conn_put(conn);
}
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| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 97 | 100.00% | 1 | 100.00% |
| Total | 97 | 100.00% | 1 | 100.00% |
static void le_scan_cleanup(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
le_scan_cleanup);
struct hci_dev *hdev = conn->hdev;
struct hci_conn *c = NULL;
BT_DBG("%s hcon %p", hdev->name, conn);
hci_dev_lock(hdev);
/* Check that the hci_conn is still around */
rcu_read_lock();
list_for_each_entry_rcu(c, &hdev->conn_hash.list, list) {
if (c == conn)
break;
}
rcu_read_unlock();
if (c == conn) {
hci_connect_le_scan_cleanup(conn);
hci_conn_cleanup(conn);
}
hci_dev_unlock(hdev);
hci_dev_put(hdev);
hci_conn_put(conn);
}
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| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 115 | 100.00% | 1 | 100.00% |
| Total | 115 | 100.00% | 1 | 100.00% |
static void hci_connect_le_scan_remove(struct hci_conn *conn)
{
BT_DBG("%s hcon %p", conn->hdev->name, conn);
/* We can't call hci_conn_del/hci_conn_cleanup here since that
* could deadlock with another hci_conn_del() call that's holding
* hci_dev_lock and doing cancel_delayed_work_sync(&conn->disc_work).
* Instead, grab temporary extra references to the hci_dev and
* hci_conn and perform the necessary cleanup in a separate work
* callback.
*/
hci_dev_hold(conn->hdev);
hci_conn_get(conn);
/* Even though we hold a reference to the hdev, many other
* things might get cleaned up meanwhile, including the hdev's
* own workqueue, so we can't use that for scheduling.
*/
schedule_work(&conn->le_scan_cleanup);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 27 | 58.70% | 2 | 66.67% |
jakub pawlowski | jakub pawlowski | 19 | 41.30% | 1 | 33.33% |
| Total | 46 | 100.00% | 3 | 100.00% |
static void hci_acl_create_connection(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
struct inquiry_entry *ie;
struct hci_cp_create_conn cp;
BT_DBG("hcon %p", conn);
conn->state = BT_CONNECT;
conn->out = true;
conn->role = HCI_ROLE_MASTER;
conn->attempt++;
conn->link_policy = hdev->link_policy;
memset(&cp, 0, sizeof(cp));
bacpy(&cp.bdaddr, &conn->dst);
cp.pscan_rep_mode = 0x02;
ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
if (ie) {
if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
cp.pscan_rep_mode = ie->data.pscan_rep_mode;
cp.pscan_mode = ie->data.pscan_mode;
cp.clock_offset = ie->data.clock_offset |
cpu_to_le16(0x8000);
}
memcpy(conn->dev_class, ie->data.dev_class, 3);
if (ie->data.ssp_mode > 0)
set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
}
cp.pkt_type = cpu_to_le16(conn->pkt_type);
if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
cp.role_switch = 0x01;
else
cp.role_switch = 0x00;
hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 133 | 52.57% | 3 | 12.50% |
marcel holtmann | marcel holtmann | 51 | 20.16% | 10 | 41.67% |
linus torvalds | linus torvalds | 41 | 16.21% | 1 | 4.17% |
johan hedberg | johan hedberg | 18 | 7.11% | 3 | 12.50% |
andrei emeltchenko | andrei emeltchenko | 5 | 1.98% | 2 | 8.33% |
vinicius costa gomes | vinicius costa gomes | 2 | 0.79% | 2 | 8.33% |
joe perches | joe perches | 1 | 0.40% | 1 | 4.17% |
maxim krasnyansky | maxim krasnyansky | 1 | 0.40% | 1 | 4.17% |
hideaki yoshifuji | hideaki yoshifuji | 1 | 0.40% | 1 | 4.17% |
| Total | 253 | 100.00% | 24 | 100.00% |
int hci_disconnect(struct hci_conn *conn, __u8 reason)
{
BT_DBG("hcon %p", conn);
/* When we are master of an established connection and it enters
* the disconnect timeout, then go ahead and try to read the
* current clock offset. Processing of the result is done
* within the event handling and hci_clock_offset_evt function.
*/
if (conn->type == ACL_LINK && conn->role == HCI_ROLE_MASTER &&
(conn->state == BT_CONNECTED || conn->state == BT_CONFIG)) {
struct hci_dev *hdev = conn->hdev;
struct hci_cp_read_clock_offset clkoff_cp;
clkoff_cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(hdev, HCI_OP_READ_CLOCK_OFFSET, sizeof(clkoff_cp),
&clkoff_cp);
}
return hci_abort_conn(conn, reason);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 71 | 72.45% | 3 | 37.50% |
linus torvalds | linus torvalds | 12 | 12.24% | 1 | 12.50% |
maksim krasnyanskiy | maksim krasnyanskiy | 9 | 9.18% | 1 | 12.50% |
fabian frederick | fabian frederick | 4 | 4.08% | 1 | 12.50% |
andre guedes | andre guedes | 1 | 1.02% | 1 | 12.50% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.02% | 1 | 12.50% |
| Total | 98 | 100.00% | 8 | 100.00% |
static void hci_add_sco(struct hci_conn *conn, __u16 handle)
{
struct hci_dev *hdev = conn->hdev;
struct hci_cp_add_sco cp;
BT_DBG("hcon %p", conn);
conn->state = BT_CONNECT;
conn->out = true;
conn->attempt++;
cp.handle = cpu_to_le16(handle);
cp.pkt_type = cpu_to_le16(conn->pkt_type);
hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 46 | 53.49% | 3 | 25.00% |
linus torvalds | linus torvalds | 23 | 26.74% | 1 | 8.33% |
marcel holtmann | marcel holtmann | 12 | 13.95% | 4 | 33.33% |
hideaki yoshifuji | hideaki yoshifuji | 2 | 2.33% | 1 | 8.33% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.16% | 1 | 8.33% |
vinicius costa gomes | vinicius costa gomes | 1 | 1.16% | 1 | 8.33% |
johan hedberg | johan hedberg | 1 | 1.16% | 1 | 8.33% |
| Total | 86 | 100.00% | 12 | 100.00% |
bool hci_setup_sync(struct hci_conn *conn, __u16 handle)
{
struct hci_dev *hdev = conn->hdev;
struct hci_cp_setup_sync_conn cp;
const struct sco_param *param;
BT_DBG("hcon %p", conn);
conn->state = BT_CONNECT;
conn->out = true;
conn->attempt++;
cp.handle = cpu_to_le16(handle);
cp.tx_bandwidth = cpu_to_le32(0x00001f40);
cp.rx_bandwidth = cpu_to_le32(0x00001f40);
cp.voice_setting = cpu_to_le16(conn->setting);
switch (conn->setting & SCO_AIRMODE_MASK) {
case SCO_AIRMODE_TRANSP:
if (conn->attempt > ARRAY_SIZE(esco_param_msbc))
return false;
param = &esco_param_msbc[conn->attempt - 1];
break;
case SCO_AIRMODE_CVSD:
if (lmp_esco_capable(conn->link)) {
if (conn->attempt > ARRAY_SIZE(esco_param_cvsd))
return false;
param = &esco_param_cvsd[conn->attempt - 1];
} else {
if (conn->attempt > ARRAY_SIZE(sco_param_cvsd))
return false;
param = &sco_param_cvsd[conn->attempt - 1];
}
break;
default:
return false;
}
cp.retrans_effort = param->retrans_effort;
cp.pkt_type = __cpu_to_le16(param->pkt_type);
cp.max_latency = __cpu_to_le16(param->max_latency);
if (hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp) < 0)
return false;
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
frederic dalleau | frederic dalleau | 113 | 42.97% | 2 | 20.00% |
marcel holtmann | marcel holtmann | 95 | 36.12% | 2 | 20.00% |
bernhard thaler | bernhard thaler | 41 | 15.59% | 1 | 10.00% |
johan hedberg | johan hedberg | 11 | 4.18% | 3 | 30.00% |
joe perches | joe perches | 2 | 0.76% | 1 | 10.00% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.38% | 1 | 10.00% |
| Total | 263 | 100.00% | 10 | 100.00% |
u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
u16 to_multiplier)
{
struct hci_dev *hdev = conn->hdev;
struct hci_conn_params *params;
struct hci_cp_le_conn_update cp;
hci_dev_lock(hdev);
params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
if (params) {
params->conn_min_interval = min;
params->conn_max_interval = max;
params->conn_latency = latency;
params->supervision_timeout = to_multiplier;
}
hci_dev_unlock(hdev);
memset(&cp, 0, sizeof(cp));
cp.handle = cpu_to_le16(conn->handle);
cp.conn_interval_min = cpu_to_le16(min);
cp.conn_interval_max = cpu_to_le16(max);
cp.conn_latency = cpu_to_le16(latency);
cp.supervision_timeout = cpu_to_le16(to_multiplier);
cp.min_ce_len = cpu_to_le16(0x0000);
cp.max_ce_len = cpu_to_le16(0x0000);
hci_send_cmd(hdev, HCI_OP_LE_CONN_UPDATE, sizeof(cp), &cp);
if (params)
return 0x01;
return 0x00;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
claudio takahasi | claudio takahasi | 119 | 59.80% | 1 | 20.00% |
marcel holtmann | marcel holtmann | 67 | 33.67% | 2 | 40.00% |
johan hedberg | johan hedberg | 11 | 5.53% | 1 | 20.00% |
joe perches | joe perches | 2 | 1.01% | 1 | 20.00% |
| Total | 199 | 100.00% | 5 | 100.00% |
void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
__u8 ltk[16], __u8 key_size)
{
struct hci_dev *hdev = conn->hdev;
struct hci_cp_le_start_enc cp;
BT_DBG("hcon %p", conn);
memset(&cp, 0, sizeof(cp));
cp.handle = cpu_to_le16(conn->handle);
cp.rand = rand;
cp.ediv = ediv;
memcpy(cp.ltk, ltk, key_size);
hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
vinicius costa gomes | vinicius costa gomes | 96 | 89.72% | 1 | 25.00% |
marcel holtmann | marcel holtmann | 6 | 5.61% | 1 | 25.00% |
johan hedberg | johan hedberg | 4 | 3.74% | 1 | 25.00% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.93% | 1 | 25.00% |
| Total | 107 | 100.00% | 4 | 100.00% |
/* Device _must_ be locked */
void hci_sco_setup(struct hci_conn *conn, __u8 status)
{
struct hci_conn *sco = conn->link;
if (!sco)
return;
BT_DBG("hcon %p", conn);
if (!status) {
if (lmp_esco_capable(conn->hdev))
hci_setup_sync(sco, conn->handle);
else
hci_add_sco(sco, conn->handle);
} else {
hci_connect_cfm(sco, status);
hci_conn_del(sco);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 77 | 90.59% | 1 | 33.33% |
andrei emeltchenko | andrei emeltchenko | 7 | 8.24% | 1 | 33.33% |
johan hedberg | johan hedberg | 1 | 1.18% | 1 | 33.33% |
| Total | 85 | 100.00% | 3 | 100.00% |
static void hci_conn_timeout(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
disc_work.work);
int refcnt = atomic_read(&conn->refcnt);
BT_DBG("hcon %p state %s", conn, state_to_string(conn->state));
WARN_ON(refcnt < 0);
/* FIXME: It was observed that in pairing failed scenario, refcnt
* drops below 0. Probably this is because l2cap_conn_del calls
* l2cap_chan_del for each channel, and inside l2cap_chan_del conn is
* dropped. After that loop hci_chan_del is called which also drops
* conn. For now make sure that ACL is alive if refcnt is higher then 0,
* otherwise drop it.
*/
if (refcnt > 0)
return;
/* LE connections in scanning state need special handling */
if (conn->state == BT_CONNECT && conn->type == LE_LINK &&
test_bit(HCI_CONN_SCANNING, &conn->flags)) {
hci_connect_le_scan_remove(conn);
return;
}
hci_abort_conn(conn, hci_proto_disconn_ind(conn));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
lukasz rymanowski | lukasz rymanowski | 21 | 18.92% | 1 | 7.14% |
maksim krasnyanskiy | maksim krasnyanskiy | 21 | 18.92% | 1 | 7.14% |
gustavo f. padovan | gustavo f. padovan | 15 | 13.51% | 1 | 7.14% |
marcel holtmann | marcel holtmann | 12 | 10.81% | 4 | 28.57% |
jakub pawlowski | jakub pawlowski | 10 | 9.01% | 1 | 7.14% |
johan hedberg | johan hedberg | 9 | 8.11% | 1 | 7.14% |
ville tervo | ville tervo | 7 | 6.31% | 1 | 7.14% |
linus torvalds | linus torvalds | 6 | 5.41% | 1 | 7.14% |
claudio takahasi | claudio takahasi | 6 | 5.41% | 1 | 7.14% |
andrei emeltchenko | andrei emeltchenko | 4 | 3.60% | 2 | 14.29% |
| Total | 111 | 100.00% | 14 | 100.00% |
/* Enter sniff mode */
static void hci_conn_idle(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
idle_work.work);
struct hci_dev *hdev = conn->hdev;
BT_DBG("hcon %p mode %d", conn, conn->mode);
if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn))
return;
if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF))
return;
if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
struct hci_cp_sniff_subrate cp;
cp.handle = cpu_to_le16(conn->handle);
cp.max_latency = cpu_to_le16(0);
cp.min_remote_timeout = cpu_to_le16(0);
cp.min_local_timeout = cpu_to_le16(0);
hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
}
if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
struct hci_cp_sniff_mode cp;
cp.handle = cpu_to_le16(conn->handle);
cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
cp.attempt = cpu_to_le16(4);
cp.timeout = cpu_to_le16(1);
hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
gustavo f. padovan | gustavo f. padovan | 210 | 88.61% | 1 | 20.00% |
johan hedberg | johan hedberg | 21 | 8.86% | 2 | 40.00% |
joe perches | joe perches | 5 | 2.11% | 1 | 20.00% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.42% | 1 | 20.00% |
| Total | 237 | 100.00% | 5 | 100.00% |
static void hci_conn_auto_accept(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
auto_accept_work.work);
hci_send_cmd(conn->hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
&conn->dst);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 49 | 100.00% | 2 | 100.00% |
| Total | 49 | 100.00% | 2 | 100.00% |
static void le_conn_timeout(struct work_struct *work)
{
struct hci_conn *conn = container_of(work, struct hci_conn,
le_conn_timeout.work);
struct hci_dev *hdev = conn->hdev;
BT_DBG("");
/* We could end up here due to having done directed advertising,
* so clean up the state if necessary. This should however only
* happen with broken hardware or if low duty cycle was used
* (which doesn't have a timeout of its own).
*/
if (conn->role == HCI_ROLE_SLAVE) {
u8 enable = 0x00;
hci_send_cmd(hdev, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable),
&enable);
hci_le_conn_failed(conn, HCI_ERROR_ADVERTISING_TIMEOUT);
return;
}
hci_abort_conn(conn, HCI_ERROR_REMOTE_USER_TERM);
}
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| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 88 | 100.00% | 4 | 100.00% |
| Total | 88 | 100.00% | 4 | 100.00% |
struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
u8 role)
{
struct hci_conn *conn;
BT_DBG("%s dst %pMR", hdev->name, dst);
conn = kzalloc(sizeof(*conn), GFP_KERNEL);
if (!conn)
return NULL;
bacpy(&conn->dst, dst);
bacpy(&conn->src, &hdev->bdaddr);
conn->hdev = hdev;
conn->type = type;
conn->role = role;
conn->mode = HCI_CM_ACTIVE;
conn->state = BT_OPEN;
conn->auth_type = HCI_AT_GENERAL_BONDING;
conn->io_capability = hdev->io_capability;
conn->remote_auth = 0xff;
conn->key_type = 0xff;
conn->rssi = HCI_RSSI_INVALID;
conn->tx_power = HCI_TX_POWER_INVALID;
conn->max_tx_power = HCI_TX_POWER_INVALID;
set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
conn->disc_timeout = HCI_DISCONN_TIMEOUT;
if (conn->role == HCI_ROLE_MASTER)
conn->out = true;
switch (type) {
case ACL_LINK:
conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
break;
case LE_LINK:
/* conn->src should reflect the local identity address */
hci_copy_identity_address(hdev, &conn->src, &conn->src_type);
break;
case SCO_LINK:
if (lmp_esco_capable(hdev))
conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
(hdev->esco_type & EDR_ESCO_MASK);
else
conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
break;
case ESCO_LINK:
conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
break;
}
skb_queue_head_init(&conn->data_q);
INIT_LIST_HEAD(&conn->chan_list);
INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
INIT_DELAYED_WORK(&conn->auto_accept_work, hci_conn_auto_accept);
INIT_DELAYED_WORK(&conn->idle_work, hci_conn_idle);
INIT_DELAYED_WORK(&conn->le_conn_timeout, le_conn_timeout);
INIT_WORK(&conn->le_scan_cleanup, le_scan_cleanup);
atomic_set(&conn->refcnt, 0);
hci_dev_hold(hdev);
hci_conn_hash_add(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
hci_conn_init_sysfs(conn);
return conn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 142 | 36.04% | 7 | 21.88% |
johan hedberg | johan hedberg | 105 | 26.65% | 12 | 37.50% |
maksim krasnyanskiy | maksim krasnyanskiy | 69 | 17.51% | 2 | 6.25% |
linus torvalds | linus torvalds | 38 | 9.64% | 1 | 3.12% |
andrzej kaczmarek | andrzej kaczmarek | 12 | 3.05% | 2 | 6.25% |
andrei emeltchenko | andrei emeltchenko | 7 | 1.78% | 2 | 6.25% |
gustavo f. padovan | gustavo f. padovan | 6 | 1.52% | 2 | 6.25% |
waldemar rymarkiewicz | waldemar rymarkiewicz | 6 | 1.52% | 1 | 3.12% |
pavel emelianov | pavel emelianov | 4 | 1.02% | 1 | 3.12% |
luiz augusto von dentz | luiz augusto von dentz | 4 | 1.02% | 1 | 3.12% |
andre guedes | andre guedes | 1 | 0.25% | 1 | 3.12% |
| Total | 394 | 100.00% | 32 | 100.00% |
int hci_conn_del(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
BT_DBG("%s hcon %p handle %d", hdev->name, conn, conn->handle);
cancel_delayed_work_sync(&conn->disc_work);
cancel_delayed_work_sync(&conn->auto_accept_work);
cancel_delayed_work_sync(&conn->idle_work);
if (conn->type == ACL_LINK) {
struct hci_conn *sco = conn->link;
if (sco)
sco->link = NULL;
/* Unacked frames */
hdev->acl_cnt += conn->sent;
} else if (conn->type == LE_LINK) {
cancel_delayed_work(&conn->le_conn_timeout);
if (hdev->le_pkts)
hdev->le_cnt += conn->sent;
else
hdev->acl_cnt += conn->sent;
} else {
struct hci_conn *acl = conn->link;
if (acl) {
acl->link = NULL;
hci_conn_drop(acl);
}
}
if (conn->amp_mgr)
amp_mgr_put(conn->amp_mgr);
skb_queue_purge(&conn->data_q);
/* Remove the connection from the list and cleanup its remaining
* state. This is a separate function since for some cases like
* BT_CONNECT_SCAN we *only* want the cleanup part without the
* rest of hci_conn_del.
*/
hci_conn_cleanup(conn);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 57 | 28.93% | 1 | 6.25% |
linus torvalds | linus torvalds | 37 | 18.78% | 1 | 6.25% |
ville tervo | ville tervo | 34 | 17.26% | 1 | 6.25% |
marcel holtmann | marcel holtmann | 28 | 14.21% | 2 | 12.50% |
johan hedberg | johan hedberg | 21 | 10.66% | 6 | 37.50% |
andrei emeltchenko | andrei emeltchenko | 14 | 7.11% | 2 | 12.50% |
tomas targownik | tomas targownik | 4 | 2.03% | 1 | 6.25% |
david herrmann | david herrmann | 1 | 0.51% | 1 | 6.25% |
gustavo f. padovan | gustavo f. padovan | 1 | 0.51% | 1 | 6.25% |
| Total | 197 | 100.00% | 16 | 100.00% |
struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
{
int use_src = bacmp(src, BDADDR_ANY);
struct hci_dev *hdev = NULL, *d;
BT_DBG("%pMR -> %pMR", src, dst);
read_lock(&hci_dev_list_lock);
list_for_each_entry(d, &hci_dev_list, list) {
if (!test_bit(HCI_UP, &d->flags) ||
hci_dev_test_flag(d, HCI_USER_CHANNEL) ||
d->dev_type != HCI_BREDR)
continue;
/* Simple routing:
* No source address - find interface with bdaddr != dst
* Source address - find interface with bdaddr == src
*/
if (use_src) {
if (!bacmp(&d->bdaddr, src)) {
hdev = d; break;
}
} else {
if (bacmp(&d->bdaddr, dst)) {
hdev = d; break;
}
}
}
if (hdev)
hdev = hci_dev_hold(hdev);
read_unlock(&hci_dev_list_lock);
return hdev;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 94 | 60.26% | 3 | 25.00% |
linus torvalds | linus torvalds | 39 | 25.00% | 1 | 8.33% |
marcel holtmann | marcel holtmann | 8 | 5.13% | 3 | 25.00% |
luiz augusto von dentz | luiz augusto von dentz | 6 | 3.85% | 1 | 8.33% |
andrei emeltchenko | andrei emeltchenko | 6 | 3.85% | 2 | 16.67% |
gustavo f. padovan | gustavo f. padovan | 2 | 1.28% | 1 | 8.33% |
hideaki yoshifuji | hideaki yoshifuji | 1 | 0.64% | 1 | 8.33% |
| Total | 156 | 100.00% | 12 | 100.00% |
EXPORT_SYMBOL(hci_get_route);
/* This function requires the caller holds hdev->lock */
void hci_le_conn_failed(struct hci_conn *conn, u8 status)
{
struct hci_dev *hdev = conn->hdev;
struct hci_conn_params *params;
params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
conn->dst_type);
if (params && params->conn) {
hci_conn_drop(params->conn);
hci_conn_put(params->conn);
params->conn = NULL;
}
conn->state = BT_CLOSED;
/* If the status indicates successful cancellation of
* the attempt (i.e. Unkown Connection Id) there's no point of
* notifying failure since we'll go back to keep trying to
* connect. The only exception is explicit connect requests
* where a timeout + cancel does indicate an actual failure.
*/
if (status != HCI_ERROR_UNKNOWN_CONN_ID ||
(params && params->explicit_connect))
mgmt_connect_failed(hdev, &conn->dst, conn->type,
conn->dst_type, status);
hci_connect_cfm(conn, status);
hci_conn_del(conn);
/* Since we may have temporarily stopped the background scanning in
* favor of connection establishment, we should restart it.
*/
hci_update_background_scan(hdev);
/* Re-enable advertising in case this was a failed connection
* attempt as a peripheral.
*/
hci_req_reenable_advertising(hdev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 76 | 53.90% | 6 | 66.67% |
andre guedes | andre guedes | 65 | 46.10% | 3 | 33.33% |
| Total | 141 | 100.00% | 9 | 100.00% |
static void create_le_conn_complete(struct hci_dev *hdev, u8 status, u16 opcode)
{
struct hci_conn *conn;
hci_dev_lock(hdev);
conn = hci_lookup_le_connect(hdev);
if (!status) {
hci_connect_le_scan_cleanup(conn);
goto done;
}
BT_ERR("HCI request failed to create LE connection: status 0x%2.2x",
status);
if (!conn)
goto done;
hci_le_conn_failed(conn, status);
done:
hci_dev_unlock(hdev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andre guedes | andre guedes | 52 | 66.67% | 2 | 40.00% |
jakub pawlowski | jakub pawlowski | 23 | 29.49% | 2 | 40.00% |
marcel holtmann | marcel holtmann | 3 | 3.85% | 1 | 20.00% |
| Total | 78 | 100.00% | 5 | 100.00% |
static bool conn_use_rpa(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
return hci_dev_test_flag(hdev, HCI_PRIVACY);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
static void hci_req_add_le_create_conn(struct hci_request *req,
struct hci_conn *conn)
{
struct hci_cp_le_create_conn cp;
struct hci_dev *hdev = conn->hdev;
u8 own_addr_type;
/* Update random address, but set require_privacy to false so
* that we never connect with an non-resolvable address.
*/
if (hci_update_random_address(req, false, conn_use_rpa(conn),
&own_addr_type))
return;
memset(&cp, 0, sizeof(cp));
/* Set window to be the same value as the interval to enable
* continuous scanning.
*/
cp.scan_interval = cpu_to_le16(hdev->le_scan_interval);
cp.scan_window = cp.scan_interval;
bacpy(&cp.peer_addr, &conn->dst);
cp.peer_addr_type = conn->dst_type;
cp.own_address_type = own_addr_type;
cp.conn_interval_min = cpu_to_le16(conn->le_conn_min_interval);
cp.conn_interval_max = cpu_to_le16(conn->le_conn_max_interval);
cp.conn_latency = cpu_to_le16(conn->le_conn_latency);
cp.supervision_timeout = cpu_to_le16(conn->le_supv_timeout);
cp.min_ce_len = cpu_to_le16(0x0000);
cp.max_ce_len = cpu_to_le16(0x0000);
hci_req_add(req, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
conn->state = BT_CONNECT;
clear_bit(HCI_CONN_SCANNING, &conn->flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andre guedes | andre guedes | 148 | 72.55% | 1 | 11.11% |
johan hedberg | johan hedberg | 28 | 13.73% | 4 | 44.44% |
marcel holtmann | marcel holtmann | 15 | 7.35% | 2 | 22.22% |
jakub pawlowski | jakub pawlowski | 10 | 4.90% | 1 | 11.11% |
joe perches | joe perches | 3 | 1.47% | 1 | 11.11% |
| Total | 204 | 100.00% | 9 | 100.00% |
static void hci_req_directed_advertising(struct hci_request *req,
struct hci_conn *conn)
{
struct hci_dev *hdev = req->hdev;
struct hci_cp_le_set_adv_param cp;
u8 own_addr_type;
u8 enable;
/* Clear the HCI_LE_ADV bit temporarily so that the
* hci_update_random_address knows that it's safe to go ahead
* and write a new random address. The flag will be set back on
* as soon as the SET_ADV_ENABLE HCI command completes.
*/
hci_dev_clear_flag(hdev, HCI_LE_ADV);
/* Set require_privacy to false so that the remote device has a
* chance of identifying us.
*/
if (hci_update_random_address(req, false, conn_use_rpa(conn),
&own_addr_type) < 0)
return;
memset(&cp, 0, sizeof(cp));
cp.type = LE_ADV_DIRECT_IND;
cp.own_address_type = own_addr_type;
cp.direct_addr_type = conn->dst_type;
bacpy(&cp.direct_addr, &conn->dst);
cp.channel_map = hdev->le_adv_channel_map;
hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
enable = 0x01;
hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
conn->state = BT_CONNECT;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 155 | 98.10% | 3 | 75.00% |
marcel holtmann | marcel holtmann | 3 | 1.90% | 1 | 25.00% |
| Total | 158 | 100.00% | 4 | 100.00% |
struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
u8 dst_type, u8 sec_level, u16 conn_timeout,
u8 role)
{
struct hci_conn_params *params;
struct hci_conn *conn;
struct smp_irk *irk;
struct hci_request req;
int err;
/* Let's make sure that le is enabled.*/
if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
if (lmp_le_capable(hdev))
return ERR_PTR(-ECONNREFUSED);
return ERR_PTR(-EOPNOTSUPP);
}
/* Since the controller supports only one LE connection attempt at a
* time, we return -EBUSY if there is any connection attempt running.
*/
if (hci_lookup_le_connect(hdev))
return ERR_PTR(-EBUSY);
/* If there's already a connection object but it's not in
* scanning state it means it must already be established, in
* which case we can't do anything else except report a failure
* to connect.
*/
conn = hci_conn_hash_lookup_le(hdev, dst, dst_type);
if (conn && !test_bit(HCI_CONN_SCANNING, &conn->flags)) {
return ERR_PTR(-EBUSY);
}
/* When given an identity address with existing identity
* resolving key, the connection needs to be established
* to a resolvable random address.
*
* Storing the resolvable random address is required here
* to handle connection failures. The address will later
* be resolved back into the original identity address
* from the connect request.
*/
irk = hci_find_irk_by_addr(hdev, dst, dst_type);
if (irk && bacmp(&irk->rpa, BDADDR_ANY)) {
dst = &irk->rpa;
dst_type = ADDR_LE_DEV_RANDOM;
}
if (conn) {
bacpy(&conn->dst, dst);
} else {
conn = hci_conn_add(hdev, LE_LINK, dst, role);
if (!conn)
return ERR_PTR(-ENOMEM);
hci_conn_hold(conn);
conn->pending_sec_level = sec_level;
}
conn->dst_type = dst_type;
conn->sec_level = BT_SECURITY_LOW;
conn->conn_timeout = conn_timeout;
hci_req_init(&req, hdev);
/* Disable advertising if we're active. For master role
* connections most controllers will refuse to connect if
* advertising is enabled, and for slave role connections we
* anyway have to disable it in order to start directed
* advertising.
*/
if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
u8 enable = 0x00;
hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable),
&enable);
}
/* If requested to connect as slave use directed advertising */
if (conn->role == HCI_ROLE_SLAVE) {
/* If we're active scanning most controllers are unable
* to initiate advertising. Simply reject the attempt.
*/
if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
hdev->le_scan_type == LE_SCAN_ACTIVE) {
skb_queue_purge(&req.cmd_q);
hci_conn_del(conn);
return ERR_PTR(-EBUSY);
}
hci_req_directed_advertising(&req, conn);
goto create_conn;
}
params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
if (params) {
conn->le_conn_min_interval = params->conn_min_interval;
conn->le_conn_max_interval = params->conn_max_interval;
conn->le_conn_latency = params->conn_latency;
conn->le_supv_timeout = params->supervision_timeout;
} else {
conn->le_conn_min_interval = hdev->le_conn_min_interval;
conn->le_conn_max_interval = hdev->le_conn_max_interval;
conn->le_conn_latency = hdev->le_conn_latency;
conn->le_supv_timeout = hdev->le_supv_timeout;
}
/* If controller is scanning, we stop it since some controllers are
* not able to scan and connect at the same time. Also set the
* HCI_LE_SCAN_INTERRUPTED flag so that the command complete
* handler for scan disabling knows to set the correct discovery
* state.
*/
if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
hci_req_add_le_scan_disable(&req);
hci_dev_set_flag(hdev, HCI_LE_SCAN_INTERRUPTED);
}
hci_req_add_le_create_conn(&req, conn);
create_conn:
err = hci_req_run(&req, create_le_conn_complete);
if (err) {
hci_conn_del(conn);
return ERR_PTR(err);
}
return conn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 187 | 37.25% | 12 | 33.33% |
andre guedes | andre guedes | 140 | 27.89% | 9 | 25.00% |
marcel holtmann | marcel holtmann | 52 | 10.36% | 7 | 19.44% |
ville tervo | ville tervo | 36 | 7.17% | 2 | 5.56% |
jakub pawlowski | jakub pawlowski | 35 | 6.97% | 1 | 2.78% |
lukasz rymanowski | lukasz rymanowski | 31 | 6.18% | 1 | 2.78% |
maksim krasnyanskiy | maksim krasnyanskiy | 13 | 2.59% | 1 | 2.78% |
linus torvalds | linus torvalds | 4 | 0.80% | 1 | 2.78% |
vinicius costa gomes | vinicius costa gomes | 3 | 0.60% | 1 | 2.78% |
andrzej kaczmarek | andrzej kaczmarek | 1 | 0.20% | 1 | 2.78% |
| Total | 502 | 100.00% | 36 | 100.00% |
static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
{
struct hci_conn *conn;
conn = hci_conn_hash_lookup_le(hdev, addr, type);
if (!conn)
return false;
if (conn->state != BT_CONNECTED)
return false;
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jakub pawlowski | jakub pawlowski | 53 | 94.64% | 1 | 50.00% |
johan hedberg | johan hedberg | 3 | 5.36% | 1 | 50.00% |
| Total | 56 | 100.00% | 2 | 100.00% |
/* This function requires the caller holds hdev->lock */
static int hci_explicit_conn_params_set(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)
{
struct hci_conn_params *params;
if (is_connected(hdev, addr, addr_type))
return -EISCONN;
params = hci_conn_params_lookup(hdev, addr, addr_type);
if (!params) {
params = hci_conn_params_add(hdev, addr, addr_type);
if (!params)
return -ENOMEM;
/* If we created new params, mark them to be deleted in
* hci_connect_le_scan_cleanup. It's different case than
* existing disabled params, those will stay after cleanup.
*/
params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
}
/* We're trying to connect, so make sure params are at pend_le_conns */
if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
params->auto_connect == HCI_AUTO_CONN_REPORT ||
params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
list_del_init(¶ms->action);
list_add(¶ms->action, &hdev->pend_le_conns);
}
params->explicit_connect = true;
BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
params->auto_connect);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jakub pawlowski | jakub pawlowski | 142 | 95.30% | 2 | 50.00% |
johan hedberg | johan hedberg | 7 | 4.70% | 2 | 50.00% |
| Total | 149 | 100.00% | 4 | 100.00% |
/* This function requires the caller holds hdev->lock */
struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
u8 dst_type, u8 sec_level,
u16 conn_timeout)
{
struct hci_conn *conn;
/* Let's make sure that le is enabled.*/
if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
if (lmp_le_capable(hdev))
return ERR_PTR(-ECONNREFUSED);
return ERR_PTR(-EOPNOTSUPP);
}
/* Some devices send ATT messages as soon as the physical link is
* established. To be able to handle these ATT messages, the user-
* space first establishes the connection and then starts the pairing
* process.
*
* So if a hci_conn object already exists for the following connection
* attempt, we simply update pending_sec_level and auth_type fields
* and return the object found.
*/
conn = hci_conn_hash_lookup_le(hdev, dst, dst_type);
if (conn) {
if (conn->pending_sec_level < sec_level)
conn->pending_sec_level = sec_level;
goto done;
}
BT_DBG("requesting refresh of dst_addr");
conn = hci_conn_add(hdev, LE_LINK, dst, HCI_ROLE_MASTER);
if (!conn)
return ERR_PTR(-ENOMEM);
if (hci_explicit_conn_params_set(hdev, dst, dst_type) < 0)
return ERR_PTR(-EBUSY);
conn->state = BT_CONNECT;
set_bit(HCI_CONN_SCANNING, &conn->flags);
conn->dst_type = dst_type;
conn->sec_level = BT_SECURITY_LOW;
conn->pending_sec_level = sec_level;
conn->conn_timeout = conn_timeout;
hci_update_background_scan(hdev);
done:
hci_conn_hold(conn);
return conn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jakub pawlowski | jakub pawlowski | 194 | 95.10% | 1 | 25.00% |
johan hedberg | johan hedberg | 10 | 4.90% | 3 | 75.00% |
| Total | 204 | 100.00% | 4 | 100.00% |
struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
u8 sec_level, u8 auth_type)
{
struct hci_conn *acl;
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
if (lmp_bredr_capable(hdev))
return ERR_PTR(-ECONNREFUSED);
return ERR_PTR(-EOPNOTSUPP);
}
acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
if (!acl) {
acl = hci_conn_add(hdev, ACL_LINK, dst, HCI_ROLE_MASTER);
if (!acl)
return ERR_PTR(-ENOMEM);
}
hci_conn_hold(acl);
if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
acl->sec_level = BT_SECURITY_LOW;
acl->pending_sec_level = sec_level;
acl->auth_type = auth_type;
hci_acl_create_connection(acl);
}
return acl;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 42 | 28.00% | 2 | 12.50% |
vinicius costa gomes | vinicius costa gomes | 31 | 20.67% | 3 | 18.75% |
johan hedberg | johan hedberg | 27 | 18.00% | 5 | 31.25% |
marcel holtmann | marcel holtmann | 17 | 11.33% | 3 | 18.75% |
lukasz rymanowski | lukasz rymanowski | 16 | 10.67% | 1 | 6.25% |
andrei emeltchenko | andrei emeltchenko | 9 | 6.00% | 1 | 6.25% |
linus torvalds | linus torvalds | 8 | 5.33% | 1 | 6.25% |
| Total | 150 | 100.00% | 16 | 100.00% |
struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
__u16 setting)
{
struct hci_conn *acl;
struct hci_conn *sco;
acl = hci_connect_acl(hdev, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING);
if (IS_ERR(acl))
return acl;
sco = hci_conn_hash_lookup_ba(hdev, type, dst);
if (!sco) {
sco = hci_conn_add(hdev, type, dst, HCI_ROLE_MASTER);
if (!sco) {
hci_conn_drop(acl);
return ERR_PTR(-ENOMEM);
}
}
acl->link = sco;
sco->link = acl;
hci_conn_hold(sco);
sco->setting = setting;
if (acl->state == BT_CONNECTED &&
(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
set_bit(HCI_CONN_POWER_SAVE, &acl->flags);
hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON);
if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->flags)) {
/* defer SCO setup until mode change completed */
set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->flags);
return sco;
}
hci_sco_setup(acl, 0x00);
}
return sco;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 59 | 28.50% | 2 | 10.53% |
vinicius costa gomes | vinicius costa gomes | 43 | 20.77% | 3 | 15.79% |
marcel holtmann | marcel holtmann | 36 | 17.39% | 3 | 15.79% |
linus torvalds | linus torvalds | 22 | 10.63% | 1 | 5.26% |
johan hedberg | johan hedberg | 16 | 7.73% | 4 | 21.05% |
frederic dalleau | frederic dalleau | 11 | 5.31% | 2 | 10.53% |
andrei emeltchenko | andrei emeltchenko | 9 | 4.35% | 1 | 5.26% |
nick pelly | nick pelly | 8 | 3.86% | 1 | 5.26% |
jaikumar ganesh | jaikumar ganesh | 2 | 0.97% | 1 | 5.26% |
david herrmann | david herrmann | 1 | 0.48% | 1 | 5.26% |
| Total | 207 | 100.00% | 19 | 100.00% |
/* Check link security requirement */
int hci_conn_check_link_mode(struct hci_conn *conn)
{
BT_DBG("hcon %p", conn);
/* In Secure Connections Only mode, it is required that Secure
* Connections is used and the link is encrypted with AES-CCM
* using a P-256 authenticated combination key.
*/
if (hci_dev_test_flag(conn->hdev, HCI_SC_ONLY)) {
if (!hci_conn_sc_enabled(conn) ||
!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
conn->key_type != HCI_LK_AUTH_COMBINATION_P256)
return 0;
}
if (hci_conn_ssp_enabled(conn) &&
!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
return 0;
return 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 72 | 86.75% | 3 | 42.86% |
johan hedberg | johan hedberg | 10 | 12.05% | 3 | 42.86% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.20% | 1 | 14.29% |
| Total | 83 | 100.00% | 7 | 100.00% |
/* Authenticate remote device */
static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
{
BT_DBG("hcon %p", conn);
if (conn->pending_sec_level > sec_level)
sec_level = conn->pending_sec_level;
if (sec_level > conn->sec_level)
conn->pending_sec_level = sec_level;
else if (test_bit(HCI_CONN_AUTH, &conn->flags))
return 1;
/* Make sure we preserve an existing MITM requirement*/
auth_type |= (conn->auth_type & 0x01);
conn->auth_type = auth_type;
if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
struct hci_cp_auth_requested cp;
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
sizeof(cp), &cp);
/* If we're already encrypted set the REAUTH_PEND flag,
* otherwise set the ENCRYPT_PEND.
*/
if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))
set_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
else
set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 54 | 31.95% | 5 | 29.41% |
maksim krasnyanskiy | maksim krasnyanskiy | 44 | 26.04% | 3 | 17.65% |
marcel holtmann | marcel holtmann | 28 | 16.57% | 5 | 29.41% |
linus torvalds | linus torvalds | 27 | 15.98% | 1 | 5.88% |
waldemar rymarkiewicz | waldemar rymarkiewicz | 14 | 8.28% | 1 | 5.88% |
hideaki yoshifuji | hideaki yoshifuji | 1 | 0.59% | 1 | 5.88% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.59% | 1 | 5.88% |
| Total | 169 | 100.00% | 17 | 100.00% |
/* Encrypt the the link */
static void hci_conn_encrypt(struct hci_conn *conn)
{
BT_DBG("hcon %p", conn);
if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
struct hci_cp_set_conn_encrypt cp;
cp.handle = cpu_to_le16(conn->handle);
cp.encrypt = 0x01;
hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
&cp);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
waldemar rymarkiewicz | waldemar rymarkiewicz | 69 | 97.18% | 1 | 33.33% |
johan hedberg | johan hedberg | 1 | 1.41% | 1 | 33.33% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.41% | 1 | 33.33% |
| Total | 71 | 100.00% | 3 | 100.00% |
/* Enable security */
int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
bool initiator)
{
BT_DBG("hcon %p", conn);
if (conn->type == LE_LINK)
return smp_conn_security(conn, sec_level);
/* For sdp we don't need the link key. */
if (sec_level == BT_SECURITY_SDP)
return 1;
/* For non 2.1 devices and low security level we don't need the link
key. */
if (sec_level == BT_SECURITY_LOW && !hci_conn_ssp_enabled(conn))
return 1;
/* For other security levels we need the link key. */
if (!test_bit(HCI_CONN_AUTH, &conn->flags))
goto auth;
/* An authenticated FIPS approved combination key has sufficient
* security for security level 4. */
if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256 &&
sec_level == BT_SECURITY_FIPS)
goto encrypt;
/* An authenticated combination key has sufficient security for
security level 3. */
if ((conn->key_type == HCI_LK_AUTH_COMBINATION_P192 ||
conn->key_type == HCI_LK_AUTH_COMBINATION_P256) &&
sec_level == BT_SECURITY_HIGH)
goto encrypt;
/* An unauthenticated combination key has sufficient security for
security level 1 and 2. */
if ((conn->key_type == HCI_LK_UNAUTH_COMBINATION_P192 ||
conn->key_type == HCI_LK_UNAUTH_COMBINATION_P256) &&
(sec_level == BT_SECURITY_MEDIUM || sec_level == BT_SECURITY_LOW))
goto encrypt;
/* A combination key has always sufficient security for the security
levels 1 or 2. High security level requires the combination key
is generated using maximum PIN code length (16).
For pre 2.1 units. */
if (conn->key_type == HCI_LK_COMBINATION &&
(sec_level == BT_SECURITY_MEDIUM || sec_level == BT_SECURITY_LOW ||
conn->pin_length == 16))
goto encrypt;
auth:
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
return 0;
if (initiator)
set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
if (!hci_conn_auth(conn, sec_level, auth_type))
return 0;
encrypt:
if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))
return 1;
hci_conn_encrypt(conn);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 79 | 31.10% | 7 | 35.00% |
waldemar rymarkiewicz | waldemar rymarkiewicz | 73 | 28.74% | 1 | 5.00% |
maksim krasnyanskiy | maksim krasnyanskiy | 35 | 13.78% | 1 | 5.00% |
johan hedberg | johan hedberg | 35 | 13.78% | 6 | 30.00% |
vinicius costa gomes | vinicius costa gomes | 16 | 6.30% | 1 | 5.00% |
linus torvalds | linus torvalds | 10 | 3.94% | 1 | 5.00% |
luiz augusto von dentz | luiz augusto von dentz | 4 | 1.57% | 1 | 5.00% |
gustavo f. padovan | gustavo f. padovan | 1 | 0.39% | 1 | 5.00% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.39% | 1 | 5.00% |
| Total | 254 | 100.00% | 20 | 100.00% |
EXPORT_SYMBOL(hci_conn_security);
/* Check secure link requirement */
int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level)
{
BT_DBG("hcon %p", conn);
/* Accept if non-secure or higher security level is required */
if (sec_level != BT_SECURITY_HIGH && sec_level != BT_SECURITY_FIPS)
return 1;
/* Accept if secure or higher security level is already present */
if (conn->sec_level == BT_SECURITY_HIGH ||
conn->sec_level == BT_SECURITY_FIPS)
return 1;
/* Reject not secure link */
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
waldemar rymarkiewicz | waldemar rymarkiewicz | 42 | 75.00% | 2 | 50.00% |
marcel holtmann | marcel holtmann | 13 | 23.21% | 1 | 25.00% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.79% | 1 | 25.00% |
| Total | 56 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(hci_conn_check_secure);
/* Switch role */
int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
{
BT_DBG("hcon %p", conn);
if (role == conn->role)
return 1;
if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) {
struct hci_cp_switch_role cp;
bacpy(&cp.bdaddr, &conn->dst);
cp.role = role;
hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 85 | 95.51% | 3 | 50.00% |
johan hedberg | johan hedberg | 3 | 3.37% | 2 | 33.33% |
andrei emeltchenko | andrei emeltchenko | 1 | 1.12% | 1 | 16.67% |
| Total | 89 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL(hci_conn_switch_role);
/* Enter active mode */
void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active)
{
struct hci_dev *hdev = conn->hdev;
BT_DBG("hcon %p mode %d", conn, conn->mode);
if (conn->mode != HCI_CM_SNIFF)
goto timer;
if (!test_bit(HCI_CONN_POWER_SAVE, &conn->flags) && !force_active)
goto timer;
if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
struct hci_cp_exit_sniff_mode cp;
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp);
}
timer:
if (hdev->idle_timeout > 0)
queue_delayed_work(hdev->workqueue, &conn->idle_work,
msecs_to_jiffies(hdev->idle_timeout));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 109 | 79.56% | 2 | 25.00% |
johan hedberg | johan hedberg | 14 | 10.22% | 3 | 37.50% |
jaikumar ganesh | jaikumar ganesh | 12 | 8.76% | 1 | 12.50% |
hideaki yoshifuji | hideaki yoshifuji | 1 | 0.73% | 1 | 12.50% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.73% | 1 | 12.50% |
| Total | 137 | 100.00% | 8 | 100.00% |
/* Drop all connection on the device */
void hci_conn_hash_flush(struct hci_dev *hdev)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct hci_conn *c, *n;
BT_DBG("hdev %s", hdev->name);
list_for_each_entry_safe(c, n, &h->list, list) {
c->state = BT_CLOSED;
hci_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM);
hci_conn_del(c);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 40 | 59.70% | 2 | 28.57% |
linus torvalds | linus torvalds | 13 | 19.40% | 1 | 14.29% |
andrei emeltchenko | andrei emeltchenko | 7 | 10.45% | 2 | 28.57% |
gustavo f. padovan | gustavo f. padovan | 6 | 8.96% | 1 | 14.29% |
johan hedberg | johan hedberg | 1 | 1.49% | 1 | 14.29% |
| Total | 67 | 100.00% | 7 | 100.00% |
/* Check pending connect attempts */
void hci_conn_check_pending(struct hci_dev *hdev)
{
struct hci_conn *conn;
BT_DBG("hdev %s", hdev->name);
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
if (conn)
hci_acl_create_connection(conn);
hci_dev_unlock(hdev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 53 | 98.15% | 1 | 50.00% |
vinicius costa gomes | vinicius costa gomes | 1 | 1.85% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
static u32 get_link_mode(struct hci_conn *conn)
{
u32 link_mode = 0;
if (conn->role == HCI_ROLE_MASTER)
link_mode |= HCI_LM_MASTER;
if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))
link_mode |= HCI_LM_ENCRYPT;
if (test_bit(HCI_CONN_AUTH, &conn->flags))
link_mode |= HCI_LM_AUTH;
if (test_bit(HCI_CONN_SECURE, &conn->flags))
link_mode |= HCI_LM_SECURE;
if (test_bit(HCI_CONN_FIPS, &conn->flags))
link_mode |= HCI_LM_FIPS;
return link_mode;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 95 | 100.00% | 2 | 100.00% |
| Total | 95 | 100.00% | 2 | 100.00% |
int hci_get_conn_list(void __user *arg)
{
struct hci_conn *c;
struct hci_conn_list_req req, *cl;
struct hci_conn_info *ci;
struct hci_dev *hdev;
int n = 0, size, err;
if (copy_from_user(&req, arg, sizeof(req)))
return -EFAULT;
if (!req.conn_num || req.conn_num > (PAGE_SIZE * 2) / sizeof(*ci))
return -EINVAL;
size = sizeof(req) + req.conn_num * sizeof(*ci);
cl = kmalloc(size, GFP_KERNEL);
if (!cl)
return -ENOMEM;
hdev = hci_dev_get(req.dev_id);
if (!hdev) {
kfree(cl);
return -ENODEV;
}
ci = cl->conn_info;
hci_dev_lock(hdev);
list_for_each_entry(c, &hdev->conn_hash.list, list) {
bacpy(&(ci + n)->bdaddr, &c->dst);
(ci + n)->handle = c->handle;
(ci + n)->type = c->type;
(ci + n)->out = c->out;
(ci + n)->state = c->state;
(ci + n)->link_mode = get_link_mode(c);
if (++n >= req.conn_num)
break;
}
hci_dev_unlock(hdev);
cl->dev_id = hdev->id;
cl->conn_num = n;
size = sizeof(req) + n * sizeof(*ci);
hci_dev_put(hdev);
err = copy_to_user(arg, cl, size);
kfree(cl);
return err ? -EFAULT : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 167 | 52.35% | 1 | 12.50% |
marcel holtmann | marcel holtmann | 67 | 21.00% | 1 | 12.50% |
linus torvalds | linus torvalds | 58 | 18.18% | 1 | 12.50% |
andrei emeltchenko | andrei emeltchenko | 10 | 3.13% | 1 | 12.50% |
luiz augusto von dentz | luiz augusto von dentz | 9 | 2.82% | 1 | 12.50% |
al viro | al viro | 3 | 0.94% | 1 | 12.50% |
johan hedberg | johan hedberg | 3 | 0.94% | 1 | 12.50% |
gustavo f. padovan | gustavo f. padovan | 2 | 0.63% | 1 | 12.50% |
| Total | 319 | 100.00% | 8 | 100.00% |
int hci_get_conn_info(struct hci_dev *hdev, void __user *arg)
{
struct hci_conn_info_req req;
struct hci_conn_info ci;
struct hci_conn *conn;
char __user *ptr = arg + sizeof(req);
if (copy_from_user(&req, arg, sizeof(req)))
return -EFAULT;
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_ba(hdev, req.type, &req.bdaddr);
if (conn) {
bacpy(&ci.bdaddr, &conn->dst);
ci.handle = conn->handle;
ci.type = conn->type;
ci.out = conn->out;
ci.state = conn->state;
ci.link_mode = get_link_mode(conn);
}
hci_dev_unlock(hdev);
if (!conn)
return -ENOENT;
return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maksim krasnyanskiy | maksim krasnyanskiy | 102 | 58.96% | 2 | 28.57% |
linus torvalds | linus torvalds | 57 | 32.95% | 1 | 14.29% |
marcel holtmann | marcel holtmann | 5 | 2.89% | 1 | 14.29% |
al viro | al viro | 4 | 2.31% | 1 | 14.29% |
johan hedberg | johan hedberg | 3 | 1.73% | 1 | 14.29% |
gustavo f. padovan | gustavo f. padovan | 2 | 1.16% | 1 | 14.29% |
| Total | 173 | 100.00% | 7 | 100.00% |
int hci_get_auth_info(struct hci_dev *hdev, void __user *arg)
{
struct hci_auth_info_req req;
struct hci_conn *conn;
if (copy_from_user(&req, arg, sizeof(req)))
return -EFAULT;
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr);
if (conn)
req.type = conn->auth_type;
hci_dev_unlock(hdev);
if (!conn)
return -ENOENT;
return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
marcel holtmann | marcel holtmann | 105 | 98.13% | 1 | 50.00% |
gustavo f. padovan | gustavo f. padovan | 2 | 1.87% | 1 | 50.00% |
| Total | 107 | 100.00% | 2 | 100.00% |
struct hci_chan *hci_chan_create(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
struct hci_chan *chan;
BT_DBG("%s hcon %p", hdev->name, conn);
if (test_bit(HCI_CONN_DROP, &conn->flags)) {
BT_DBG("Refusing to create new hci_chan");
return NULL;
}
chan = kzalloc(sizeof(*chan), GFP_KERNEL);
if (!chan)
return NULL;
chan->conn = hci_conn_get(conn);
skb_queue_head_init(&chan->data_q);
chan->state = BT_CONNECTED;
list_add_rcu(&chan->list, &conn->chan_list);
return chan;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
luiz augusto von dentz | luiz augusto von dentz | 75 | 63.03% | 1 | 11.11% |
johan hedberg | johan hedberg | 29 | 24.37% | 3 | 33.33% |
gustavo f. padovan | gustavo f. padovan | 7 | 5.88% | 2 | 22.22% |
mat martineau | mat martineau | 6 | 5.04% | 1 | 11.11% |
andrei emeltchenko | andrei emeltchenko | 1 | 0.84% | 1 | 11.11% |
andre guedes | andre guedes | 1 | 0.84% | 1 | 11.11% |
| Total | 119 | 100.00% | 9 | 100.00% |
void hci_chan_del(struct hci_chan *chan)
{
struct hci_conn *conn = chan->conn;
struct hci_dev *hdev = conn->hdev;
BT_DBG("%s hcon %p chan %p", hdev->name, conn, chan);
list_del_rcu(&chan->list);
synchronize_rcu();
/* Prevent new hci_chan's to be created for this hci_conn */
set_bit(HCI_CONN_DROP, &conn->flags);
hci_conn_put(conn);
skb_queue_purge(&chan->data_q);
kfree(chan);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
luiz augusto von dentz | luiz augusto von dentz | 57 | 70.37% | 1 | 12.50% |
johan hedberg | johan hedberg | 16 | 19.75% | 3 | 37.50% |
gustavo f. padovan | gustavo f. padovan | 6 | 7.41% | 2 | 25.00% |
andrei emeltchenko | andrei emeltchenko | 2 | 2.47% | 2 | 25.00% |
| Total | 81 | 100.00% | 8 | 100.00% |
void hci_chan_list_flush(struct hci_conn *conn)
{
struct hci_chan *chan, *n;
BT_DBG("hcon %p", conn);
list_for_each_entry_safe(chan, n, &conn->chan_list, list)
hci_chan_del(chan);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
luiz augusto von dentz | luiz augusto von dentz | 31 | 77.50% | 1 | 25.00% |
andrei emeltchenko | andrei emeltchenko | 7 | 17.50% | 2 | 50.00% |
gustavo f. padovan | gustavo f. padovan | 2 | 5.00% | 1 | 25.00% |
| Total | 40 | 100.00% | 4 | 100.00% |
static struct hci_chan *__hci_chan_lookup_handle(struct hci_conn *hcon,
__u16 handle)
{
struct hci_chan *hchan;
list_for_each_entry(hchan, &hcon->chan_list, list) {
if (hchan->handle == handle)
return hchan;
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andrei emeltchenko | andrei emeltchenko | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct hci_conn *hcon;
struct hci_chan *hchan = NULL;
rcu_read_lock();
list_for_each_entry_rcu(hcon, &h->list, list) {
hchan = __hci_chan_lookup_handle(hcon, handle);
if (hchan)
break;
}
rcu_read_unlock();
return hchan;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andrei emeltchenko | andrei emeltchenko | 70 | 100.00% | 1 | 100.00% |
| Total | 70 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
johan hedberg | johan hedberg | 1553 | 22.57% | 71 | 32.72% |
marcel holtmann | marcel holtmann | 1267 | 18.41% | 54 | 24.88% |
maksim krasnyanskiy | maksim krasnyanskiy | 933 | 13.56% | 5 | 2.30% |
jakub pawlowski | jakub pawlowski | 601 | 8.73% | 6 | 2.76% |
andre guedes | andre guedes | 409 | 5.94% | 15 | 6.91% |
linus torvalds | linus torvalds | 403 | 5.86% | 1 | 0.46% |
gustavo f. padovan | gustavo f. padovan | 263 | 3.82% | 8 | 3.69% |
frederic dalleau | frederic dalleau | 219 | 3.18% | 3 | 1.38% |
andrei emeltchenko | andrei emeltchenko | 217 | 3.15% | 13 | 5.99% |
waldemar rymarkiewicz | waldemar rymarkiewicz | 211 | 3.07% | 4 | 1.84% |
vinicius costa gomes | vinicius costa gomes | 195 | 2.83% | 8 | 3.69% |
luiz augusto von dentz | luiz augusto von dentz | 186 | 2.70% | 3 | 1.38% |
claudio takahasi | claudio takahasi | 125 | 1.82% | 2 | 0.92% |
ville tervo | ville tervo | 77 | 1.12% | 3 | 1.38% |
bernhard thaler | bernhard thaler | 70 | 1.02% | 1 | 0.46% |
lukasz rymanowski | lukasz rymanowski | 68 | 0.99% | 3 | 1.38% |
jaikumar ganesh | jaikumar ganesh | 14 | 0.20% | 1 | 0.46% |
andrzej kaczmarek | andrzej kaczmarek | 13 | 0.19% | 3 | 1.38% |
joe perches | joe perches | 13 | 0.19% | 1 | 0.46% |
nick pelly | nick pelly | 8 | 0.12% | 1 | 0.46% |
al viro | al viro | 7 | 0.10% | 1 | 0.46% |
hideaki yoshifuji | hideaki yoshifuji | 6 | 0.09% | 2 | 0.92% |
mat martineau | mat martineau | 6 | 0.09% | 1 | 0.46% |
tomas targownik | tomas targownik | 4 | 0.06% | 1 | 0.46% |
pavel emelianov | pavel emelianov | 4 | 0.06% | 1 | 0.46% |
fabian frederick | fabian frederick | 4 | 0.06% | 1 | 0.46% |
david herrmann | david herrmann | 2 | 0.03% | 1 | 0.46% |
maxim krasnyansky | maxim krasnyansky | 1 | 0.01% | 1 | 0.46% |
ron shaffer | ron shaffer | 1 | 0.01% | 1 | 0.46% |
gustavo padovan | gustavo padovan | 1 | 0.01% | 1 | 0.46% |
| Total | 6881 | 100.00% | 217 | 100.00% |
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