cregit-Linux how code gets into the kernel

Release 4.8 net/bluetooth/hci_conn.c

Directory: net/bluetooth
/*
   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(&params->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(&params->action, &hdev->pend_le_conns); break; case HCI_AUTO_CONN_REPORT: list_add(&params->action, &hdev->pend_le_reports); break; default: break; } hci_update_background_scan(hdev); }

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jakub pawlowskijakub pawlowski11259.89%240.00%
johan hedbergjohan hedberg7540.11%360.00%
Total187100.00%5100.00%


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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johan hedbergjohan hedberg97100.00%1100.00%
Total97100.00%1100.00%


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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PersonTokensPropCommitsCommitProp
johan hedbergjohan hedberg115100.00%1100.00%
Total115100.00%1100.00%


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

PersonTokensPropCommitsCommitProp
johan hedbergjohan hedberg2758.70%266.67%
jakub pawlowskijakub pawlowski1941.30%133.33%
Total46100.00%3100.00%


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); }

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PersonTokensPropCommitsCommitProp
maksim krasnyanskiymaksim krasnyanskiy13352.57%312.50%
marcel holtmannmarcel holtmann5120.16%1041.67%
linus torvaldslinus torvalds4116.21%14.17%
johan hedbergjohan hedberg187.11%312.50%
andrei emeltchenkoandrei emeltchenko51.98%28.33%
vinicius costa gomesvinicius costa gomes20.79%28.33%
hideaki yoshifujihideaki yoshifuji10.40%14.17%
maxim krasnyanskymaxim krasnyansky10.40%14.17%
joe perchesjoe perches10.40%14.17%
Total253100.00%24100.00%


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); }

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PersonTokensPropCommitsCommitProp
johan hedbergjohan hedberg7172.45%337.50%
linus torvaldslinus torvalds1212.24%112.50%
maksim krasnyanskiymaksim krasnyanskiy99.18%112.50%
fabian frederickfabian frederick44.08%112.50%
andrei emeltchenkoandrei emeltchenko11.02%112.50%
andre guedesandre guedes11.02%112.50%
Total98100.00%8100.00%


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

PersonTokensPropCommitsCommitProp
maksim krasnyanskiymaksim krasnyanskiy4653.49%325.00%
linus torvaldslinus torvalds2326.74%18.33%
marcel holtmannmarcel holtmann1213.95%433.33%
hideaki yoshifujihideaki yoshifuji22.33%18.33%
johan hedbergjohan hedberg11.16%18.33%
andrei emeltchenkoandrei emeltchenko11.16%18.33%
vinicius costa gomesvinicius costa gomes11.16%18.33%
Total86100.00%12100.00%


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; }

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frederic dalleaufrederic dalleau11342.97%220.00%
marcel holtmannmarcel holtmann9536.12%220.00%
bernhard thalerbernhard thaler4115.59%110.00%
johan hedbergjohan hedberg114.18%330.00%
joe perchesjoe perches20.76%110.00%
andrei emeltchenkoandrei emeltchenko10.38%110.00%
Total263100.00%10100.00%


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; }

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claudio takahasiclaudio takahasi11959.80%120.00%
marcel holtmannmarcel holtmann6733.67%240.00%
johan hedbergjohan hedberg115.53%120.00%
joe perchesjoe perches21.01%120.00%
Total199100.00%5100.00%


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

PersonTokensPropCommitsCommitProp
vinicius costa gomesvinicius costa gomes9689.72%125.00%
marcel holtmannmarcel holtmann65.61%125.00%
johan hedbergjohan hedberg43.74%125.00%
andrei emeltchenkoandrei emeltchenko10.93%125.00%
Total107100.00%4100.00%

/* 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); } }

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PersonTokensPropCommitsCommitProp
marcel holtmannmarcel holtmann7790.59%133.33%
andrei emeltchenkoandrei emeltchenko78.24%133.33%
johan hedbergjohan hedberg11.18%133.33%
Total85100.00%3100.00%


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)); }

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lukasz rymanowskilukasz rymanowski2118.92%17.14%
maksim krasnyanskiymaksim krasnyanskiy2118.92%17.14%
gustavo f. padovangustavo f. padovan1513.51%17.14%
marcel holtmannmarcel holtmann1210.81%428.57%
jakub pawlowskijakub pawlowski109.01%17.14%
johan hedbergjohan hedberg98.11%17.14%
ville tervoville tervo76.31%17.14%
linus torvaldslinus torvalds65.41%17.14%
claudio takahasiclaudio takahasi65.41%17.14%
andrei emeltchenkoandrei emeltchenko43.60%214.29%
Total111100.00%14100.00%

/* 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); } }

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PersonTokensPropCommitsCommitProp
gustavo f. padovangustavo f. padovan21088.61%120.00%
johan hedbergjohan hedberg218.86%240.00%
joe perchesjoe perches52.11%120.00%
andrei emeltchenkoandrei emeltchenko10.42%120.00%
Total237100.00%5100.00%


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

PersonTokensPropCommitsCommitProp
johan hedbergjohan hedberg49100.00%2100.00%
Total49100.00%2100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
johan hedbergjohan hedberg88100.00%4100.00%
Total88100.00%4100.00%


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; }

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marcel holtmannmarcel holtmann14236.04%721.88%
johan hedbergjohan hedberg10526.65%1237.50%
maksim krasnyanskiymaksim krasnyanskiy6917.51%26.25%
linus torvaldslinus torvalds389.64%13.12%
andrzej kaczmarekandrzej kaczmarek123.05%26.25%
andrei emeltchenkoandrei emeltchenko71.78%26.25%
waldemar rymarkiewiczwaldemar rymarkiewicz61.52%13.12%
gustavo f. padovangustavo f. padovan61.52%26.25%
pavel emelianovpavel emelianov41.02%13.12%
luiz augusto von dentzluiz augusto von dentz41.02%13.12%
andre guedesandre guedes10.25%13.12%
Total394100.00%32100.00%


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

PersonTokensPropCommitsCommitProp
maksim krasnyanskiymaksim krasnyanskiy5728.93%16.25%
linus torvaldslinus torvalds3718.78%16.25%
ville tervoville tervo3417.26%16.25%
marcel holtmannmarcel holtmann2814.21%212.50%
johan hedbergjohan hedberg2110.66%637.50%
andrei emeltchenkoandrei emeltchenko147.11%212.50%
tomas targowniktomas targownik42.03%16.25%
gustavo f. padovangustavo f. padovan10.51%16.25%
david herrmanndavid herrmann10.51%16.25%
Total197100.00%16100.00%


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,<