cregit-Linux how code gets into the kernel

Release 4.11 net/bluetooth/hci_core.c

Directory: net/bluetooth
/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated
   Copyright (C) 2011 ProFUSION Embedded Systems

   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 core. */

#include <linux/export.h>
#include <linux/idr.h>
#include <linux/rfkill.h>
#include <linux/debugfs.h>
#include <linux/crypto.h>
#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/mgmt.h>

#include "hci_request.h"
#include "hci_debugfs.h"
#include "smp.h"
#include "leds.h"

static void hci_rx_work(struct work_struct *work);
static void hci_cmd_work(struct work_struct *work);
static void hci_tx_work(struct work_struct *work);

/* HCI device list */

LIST_HEAD(hci_dev_list);

DEFINE_RWLOCK(hci_dev_list_lock);

/* HCI callback list */

LIST_HEAD(hci_cb_list);

DEFINE_MUTEX(hci_cb_list_lock);

/* HCI ID Numbering */
static DEFINE_IDA(hci_index_ida);

/* ---- HCI debugfs entries ---- */


static ssize_t dut_mode_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct hci_dev *hdev = file->private_data; char buf[3]; buf[0] = hci_dev_test_flag(hdev, HCI_DUT_MODE) ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann82100.00%2100.00%
Total82100.00%2100.00%


static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct hci_dev *hdev = file->private_data; struct sk_buff *skb; char buf[32]; size_t buf_size = min(count, (sizeof(buf)-1)); bool enable; if (!test_bit(HCI_UP, &hdev->flags)) return -ENETDOWN; if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; buf[buf_size] = '\0'; if (strtobool(buf, &enable)) return -EINVAL; if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE)) return -EALREADY; hci_req_sync_lock(hdev); if (enable) skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL, HCI_CMD_TIMEOUT); else skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_CMD_TIMEOUT); hci_req_sync_unlock(hdev); if (IS_ERR(skb)) return PTR_ERR(skb); kfree_skb(skb); hci_dev_change_flag(hdev, HCI_DUT_MODE); return count; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann20399.02%266.67%
Johan Hedberg20.98%133.33%
Total205100.00%3100.00%

static const struct file_operations dut_mode_fops = { .open = simple_open, .read = dut_mode_read, .write = dut_mode_write, .llseek = default_llseek, };
static ssize_t vendor_diag_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct hci_dev *hdev = file->private_data; char buf[3]; buf[0] = hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) ? 'Y' : 'N'; buf[1] = '\n'; buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, 2); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann82100.00%1100.00%
Total82100.00%1100.00%


static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct hci_dev *hdev = file->private_data; char buf[32]; size_t buf_size = min(count, (sizeof(buf)-1)); bool enable; int err; if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; buf[buf_size] = '\0'; if (strtobool(buf, &enable)) return -EINVAL; /* When the diagnostic flags are not persistent and the transport * is not active, then there is no need for the vendor callback. * * Instead just store the desired value. If needed the setting * will be programmed when the controller gets powered on. */ if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && !test_bit(HCI_RUNNING, &hdev->flags)) goto done; hci_req_sync_lock(hdev); err = hdev->set_diag(hdev, enable); hci_req_sync_unlock(hdev); if (err < 0) return err; done: if (enable) hci_dev_set_flag(hdev, HCI_VENDOR_DIAG); else hci_dev_clear_flag(hdev, HCI_VENDOR_DIAG); return count; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann17798.88%266.67%
Johan Hedberg21.12%133.33%
Total179100.00%3100.00%

static const struct file_operations vendor_diag_fops = { .open = simple_open, .read = vendor_diag_read, .write = vendor_diag_write, .llseek = default_llseek, };
static void hci_debugfs_create_basic(struct hci_dev *hdev) { debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev, &dut_mode_fops); if (hdev->set_diag) debugfs_create_file("vendor_diag", 0644, hdev->debugfs, hdev, &vendor_diag_fops); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann49100.00%1100.00%
Total49100.00%1100.00%


static int hci_reset_req(struct hci_request *req, unsigned long opt) { BT_DBG("%s %ld", req->hdev->name, opt); /* Reset device */ set_bit(HCI_RESET, &req->hdev->flags); hci_req_add(req, HCI_OP_RESET, 0, NULL); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds1832.73%228.57%
Maksim Krasnyanskiy1425.45%114.29%
Johan Hedberg1221.82%228.57%
Gustavo Fernando Padovan1018.18%114.29%
Marcel Holtmann11.82%114.29%
Total55100.00%7100.00%


static void bredr_init(struct hci_request *req) { req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED; /* Read Local Supported Features */ hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); /* Read Local Version */ hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); /* Read BD Address */ hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg2036.36%225.00%
Marcel Holtmann1120.00%225.00%
Linus Torvalds916.36%112.50%
Maksim Krasnyanskiy814.55%112.50%
Andrei Emeltchenko712.73%225.00%
Total55100.00%8100.00%


static void amp_init1(struct hci_request *req) { req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED; /* Read Local Version */ hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); /* Read Local Supported Commands */ hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); /* Read Local AMP Info */ hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL); /* Read Data Blk size */ hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL); /* Read Flow Control Mode */ hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL); /* Read Location Data */ hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg4448.35%342.86%
Marcel Holtmann3235.16%228.57%
Andrei Emeltchenko1516.48%228.57%
Total91100.00%7100.00%


static int amp_init2(struct hci_request *req) { /* Read Local Supported Features. Not all AMP controllers * support this so it's placed conditionally in the second * stage init. */ if (req->hdev->commands[14] & 0x20) hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg2974.36%375.00%
Marcel Holtmann1025.64%125.00%
Total39100.00%4100.00%


static int hci_init1_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; BT_DBG("%s %ld", hdev->name, opt); /* Reset */ if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) hci_reset_req(req, 0); switch (hdev->dev_type) { case HCI_PRIMARY: bredr_init(req); break; case HCI_AMP: amp_init1(req); break; default: BT_ERR("Unknown device type %d", hdev->dev_type); break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9598.96%480.00%
Marcel Holtmann11.04%120.00%
Total96100.00%5100.00%


static void bredr_setup(struct hci_request *req) { __le16 param; __u8 flt_type; /* Read Buffer Size (ACL mtu, max pkt, etc.) */ hci_req_add(req, HCI_OP_READ_BUFFER_SIZE, 0, NULL); /* Read Class of Device */ hci_req_add(req, HCI_OP_READ_CLASS_OF_DEV, 0, NULL); /* Read Local Name */ hci_req_add(req, HCI_OP_READ_LOCAL_NAME, 0, NULL); /* Read Voice Setting */ hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL); /* Read Number of Supported IAC */ hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL); /* Read Current IAC LAP */ hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL); /* Clear Event Filters */ flt_type = HCI_FLT_CLEAR_ALL; hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type); /* Connection accept timeout ~20 secs */ param = cpu_to_le16(0x7d00); hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, &param); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg10180.16%240.00%
Marcel Holtmann2419.05%240.00%
Joe Perches10.79%120.00%
Total126100.00%5100.00%


static void le_setup(struct hci_request *req) { struct hci_dev *hdev = req->hdev; /* Read LE Buffer Size */ hci_req_add(req, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL); /* Read LE Local Supported Features */ hci_req_add(req, HCI_OP_LE_READ_LOCAL_FEATURES, 0, NULL); /* Read LE Supported States */ hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL); /* LE-only controllers have LE implicitly enabled */ if (!lmp_bredr_capable(hdev)) hci_dev_set_flag(hdev, HCI_LE_ENABLED); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg5779.17%360.00%
Marcel Holtmann1520.83%240.00%
Total72100.00%5100.00%


static void hci_setup_event_mask(struct hci_request *req) { struct hci_dev *hdev = req->hdev; /* The second byte is 0xff instead of 0x9f (two reserved bits * disabled) since a Broadcom 1.2 dongle doesn't respond to the * command otherwise. */ u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 }; /* CSR 1.1 dongles does not accept any bitfield so don't try to set * any event mask for pre 1.2 devices. */ if (hdev->hci_ver < BLUETOOTH_VER_1_2) return; if (lmp_bredr_capable(hdev)) { events[4] |= 0x01; /* Flow Specification Complete */ } else { /* Use a different default for LE-only devices */ memset(events, 0, sizeof(events)); events[1] |= 0x20; /* Command Complete */ events[1] |= 0x40; /* Command Status */ events[1] |= 0x80; /* Hardware Error */ /* If the controller supports the Disconnect command, enable * the corresponding event. In addition enable packet flow * control related events. */ if (hdev->commands[0] & 0x20) { events[0] |= 0x10; /* Disconnection Complete */ events[2] |= 0x04; /* Number of Completed Packets */ events[3] |= 0x02; /* Data Buffer Overflow */ } /* If the controller supports the Read Remote Version * Information command, enable the corresponding event. */ if (hdev->commands[2] & 0x80) events[1] |= 0x08; /* Read Remote Version Information * Complete */ if (hdev->le_features[0] & HCI_LE_ENCRYPTION) { events[0] |= 0x80; /* Encryption Change */ events[5] |= 0x80; /* Encryption Key Refresh Complete */ } } if (lmp_inq_rssi_capable(hdev) || test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks)) events[4] |= 0x02; /* Inquiry Result with RSSI */ if (lmp_ext_feat_capable(hdev)) events[4] |= 0x04; /* Read Remote Extended Features Complete */ if (lmp_esco_capable(hdev)) { events[5] |= 0x08; /* Synchronous Connection Complete */ events[5] |= 0x10; /* Synchronous Connection Changed */ } if (lmp_sniffsubr_capable(hdev)) events[5] |= 0x20; /* Sniff Subrating */ if (lmp_pause_enc_capable(hdev)) events[5] |= 0x80; /* Encryption Key Refresh Complete */ if (lmp_ext_inq_capable(hdev)) events[5] |= 0x40; /* Extended Inquiry Result */ if (lmp_no_flush_capable(hdev)) events[7] |= 0x01; /* Enhanced Flush Complete */ if (lmp_lsto_capable(hdev)) events[6] |= 0x80; /* Link Supervision Timeout Changed */ if (lmp_ssp_capable(hdev)) { events[6] |= 0x01; /* IO Capability Request */ events[6] |= 0x02; /* IO Capability Response */ events[6] |= 0x04; /* User Confirmation Request */ events[6] |= 0x08; /* User Passkey Request */ events[6] |= 0x10; /* Remote OOB Data Request */ events[6] |= 0x20; /* Simple Pairing Complete */ events[7] |= 0x04; /* User Passkey Notification */ events[7] |= 0x08; /* Keypress Notification */ events[7] |= 0x10; /* Remote Host Supported * Features Notification */ } if (lmp_le_capable(hdev)) events[7] |= 0x20; /* LE Meta-Event */ hci_req_add(req, HCI_OP_SET_EVENT_MASK, sizeof(events), events); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg27260.58%228.57%
Marcel Holtmann17739.42%571.43%
Total449100.00%7100.00%


static int hci_init2_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; if (hdev->dev_type == HCI_AMP) return amp_init2(req); if (lmp_bredr_capable(hdev)) bredr_setup(req); else hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED); if (lmp_le_capable(hdev)) le_setup(req); /* All Bluetooth 1.2 and later controllers should support the * HCI command for reading the local supported commands. * * Unfortunately some controllers indicate Bluetooth 1.2 support, * but do not have support for this command. If that is the case, * the driver can quirk the behavior and skip reading the local * supported commands. */ if (hdev->hci_ver > BLUETOOTH_VER_1_1 && !test_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks)) hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); if (lmp_ssp_capable(hdev)) { /* When SSP is available, then the host features page * should also be available as well. However some * controllers list the max_page as 0 as long as SSP * has not been enabled. To achieve proper debugging * output, force the minimum max_page to 1 at least. */ hdev->max_page = 0x01; if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) { u8 mode = 0x01; hci_req_add(req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode); } else { struct hci_cp_write_eir cp; memset(hdev->eir, 0, sizeof(hdev->eir)); memset(&cp, 0, sizeof(cp)); hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp); } } if (lmp_inq_rssi_capable(hdev) || test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks)) { u8 mode; /* If Extended Inquiry Result events are supported, then * they are clearly preferred over Inquiry Result with RSSI * events. */ mode = lmp_ext_inq_capable(hdev) ? 0x02 : 0x01; hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode); } if (lmp_inq_tx_pwr_capable(hdev)) hci_req_add(req, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL); if (lmp_ext_feat_capable(hdev)) { struct hci_cp_read_local_ext_features cp; cp.page = 0x01; hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp); } if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) { u8 enable = 1; hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable), &enable); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg26880.97%545.45%
Marcel Holtmann6319.03%654.55%
Total331100.00%11100.00%


static void hci_setup_link_policy(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_def_link_policy cp; u16 link_policy = 0; if (lmp_rswitch_capable(hdev)) link_policy |= HCI_LP_RSWITCH; if (lmp_hold_capable(hdev)) link_policy |= HCI_LP_HOLD; if (lmp_sniff_capable(hdev)) link_policy |= HCI_LP_SNIFF; if (lmp_park_capable(hdev)) link_policy |= HCI_LP_PARK; cp.policy = cpu_to_le16(link_policy); hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg8486.60%240.00%
Andrei Emeltchenko1313.40%360.00%
Total97100.00%5100.00%


static void hci_set_le_support(struct hci_request *req) { struct hci_dev *hdev = req->hdev; struct hci_cp_write_le_host_supported cp; /* LE-only devices do not support explicit enablement */ if (!lmp_bredr_capable(hdev)) return; memset(&cp, 0, sizeof(cp)); if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) { cp.le = 0x01; cp.simul = 0x00; } if (cp.le != lmp_host_le_capable(hdev)) hci_req_add(req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg5961.46%350.00%
Andrei Emeltchenko3334.38%116.67%
Marcel Holtmann44.17%233.33%
Total96100.00%6100.00%


static void hci_set_event_mask_page_2(struct hci_request *req) { struct hci_dev *hdev = req->hdev; u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; /* If Connectionless Slave Broadcast master role is supported * enable all necessary events for it. */ if (lmp_csb_master_capable(hdev)) { events[1] |= 0x40; /* Triggered Clock Capture */ events[1] |= 0x80; /* Synchronization Train Complete */ events[2] |= 0x10; /* Slave Page Response Timeout */ events[2] |= 0x20; /* CSB Channel Map Change */ } /* If Connectionless Slave Broadcast slave role is supported * enable all necessary events for it. */ if (lmp_csb_slave_capable(hdev)) { events[2] |= 0x01; /* Synchronization Train Received */ events[2] |= 0x02; /* CSB Receive */ events[2] |= 0x04; /* CSB Timeout */ events[2] |= 0x08; /* Truncated Page Complete */ } /* Enable Authenticated Payload Timeout Expired event if supported */ if (lmp_ping_capable(hdev) || hdev->le_features[0] & HCI_LE_PING) events[2] |= 0x80; hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg13681.93%125.00%
Marcel Holtmann3018.07%375.00%
Total166100.00%4100.00%


static int hci_init3_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; u8 p; hci_setup_event_mask(req); if (hdev->commands[6] & 0x20 && !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) { struct hci_cp_read_stored_link_key cp; bacpy(&cp.bdaddr, BDADDR_ANY); cp.read_all = 0x01; hci_req_add(req, HCI_OP_READ_STORED_LINK_KEY, sizeof(cp), &cp); } if (hdev->commands[5] & 0x10) hci_setup_link_policy(req); if (hdev->commands[8] & 0x01) hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL); /* Some older Broadcom based Bluetooth 1.2 controllers do not * support the Read Page Scan Type command. Check support for * this command in the bit mask of supported commands. */ if (hdev->commands[13] & 0x01) hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL); if (lmp_le_capable(hdev)) { u8 events[8]; memset(events, 0, sizeof(events)); if (hdev->le_features[0] & HCI_LE_ENCRYPTION) events[0] |= 0x10; /* LE Long Term Key Request */ /* If controller supports the Connection Parameters Request * Link Layer Procedure, enable the corresponding event. */ if (hdev->le_features[0] & HCI_LE_CONN_PARAM_REQ_PROC) events[0] |= 0x20; /* LE Remote Connection * Parameter Request */ /* If the controller supports the Data Length Extension * feature, enable the corresponding event. */ if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) events[0] |= 0x40; /* LE Data Length Change */ /* If the controller supports Extended Scanner Filter * Policies, enable the correspondig event. */ if (hdev->le_features[0] & HCI_LE_EXT_SCAN_POLICY) events[1] |= 0x04; /* LE Direct Advertising * Report */ /* If the controller supports the LE Set Scan Enable command, * enable the corresponding advertising report event. */ if (hdev->commands[26] & 0x08) events[0] |= 0x02; /* LE Advertising Report */ /* If the controller supports the LE Create Connection * command, enable the corresponding event. */ if (hdev->commands[26] & 0x10) events[0] |= 0x01; /* LE Connection Complete */ /* If the controller supports the LE Connection Update * command, enable the corresponding event. */ if (hdev->commands[27] & 0x04) events[0] |= 0x04; /* LE Connection Update * Complete */ /* If the controller supports the LE Read Remote Used Features * command, enable the corresponding event. */ if (hdev->commands[27] & 0x20) events[0] |= 0x08; /* LE Read Remote Used * Features Complete */ /* If the controller supports the LE Read Local P-256 * Public Key command, enable the corresponding event. */ if (hdev->commands[34] & 0x02) events[0] |= 0x80; /* LE Read Local P-256 * Public Key Complete */ /* If the controller supports the LE Generate DHKey * command, enable the corresponding event. */ if (hdev->commands[34] & 0x04) events[1] |= 0x01; /* LE Generate DHKey Complete */ hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events), events); if (hdev->commands[25] & 0x40) { /* Read LE Advertising Channel TX Power */ hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); } if (hdev->commands[26] & 0x40) { /* Read LE White List Size */ hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL); } if (hdev->commands[26] & 0x80) { /* Clear LE White List */ hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL); } if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) { /* Read LE Maximum Data Length */ hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL); /* Read LE Suggested Default Data Length */ hci_req_add(req, HCI_OP_LE_READ_DEF_DATA_LEN, 0, NULL); } hci_set_le_support(req); } /* Read features beyond page 1 if available */ for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { struct hci_cp_read_local_ext_features cp; cp.page = p; hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann38969.59%1052.63%
Johan Hedberg10618.96%526.32%
Andre Guedes549.66%210.53%
Andrei Emeltchenko101.79%210.53%
Total559100.00%19100.00%


static int hci_init4_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; /* Some Broadcom based Bluetooth controllers do not support the * Delete Stored Link Key command. They are clearly indicating its * absence in the bit mask of supported commands. * * Check the supported commands and only if the the command is marked * as supported send it. If not supported assume that the controller * does not have actual support for stored link keys which makes this * command redundant anyway. * * Some controllers indicate that they support handling deleting * stored link keys, but they don't. The quirk lets a driver * just disable this command. */ if (hdev->commands[6] & 0x80 && !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) { struct hci_cp_delete_stored_link_key cp; bacpy(&cp.bdaddr, BDADDR_ANY); cp.delete_all = 0x01; hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp); } /* Set event mask page 2 if the HCI command for it is supported */ if (hdev->commands[22] & 0x04) hci_set_event_mask_page_2(req); /* Read local codec list if the HCI command is supported */ if (hdev->commands[29] & 0x20) hci_req_add(req, HCI_OP_READ_LOCAL_CODECS, 0, NULL); /* Get MWS transport configuration if the HCI command is supported */ if (hdev->commands[30] & 0x08) hci_req_add(req, HCI_OP_GET_MWS_TRANSPORT_CONFIG, 0, NULL); /* Check for Synchronization Train support */ if (lmp_sync_train_capable(hdev)) hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL); /* Enable Secure Connections if supported and configured */ if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && bredr_sc_enabled(hdev)) { u8 support = 0x01; hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT, sizeof(support), &support); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann14570.39%763.64%
Johan Hedberg6129.61%436.36%
Total206100.00%11100.00%


static int __hci_init(struct hci_dev *hdev) { int err; err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; if (hci_dev_test_flag(hdev, HCI_SETUP)) hci_debugfs_create_basic(hdev); err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; /* HCI_PRIMARY covers both single-mode LE, BR/EDR and dual-mode * BR/EDR/LE type controllers. AMP controllers only need the * first two stages of init. */ if (hdev->dev_type != HCI_PRIMARY) return 0; err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; /* This function is only called when the controller is actually in * configured state. When the controller is marked as unconfigured, * this initialization procedure is not run. * * It means that it is possible that a controller runs through its * setup phase and then discovers missing settings. If that is the * case, then this function will not be called. It then will only * be called during the config phase. * * So only when in setup phase or config phase, create the debugfs * entries and register the SMP channels. */ if (!hci_dev_test_flag(hdev, HCI_SETUP) && !hci_dev_test_flag(hdev, HCI_CONFIG)) return 0; hci_debugfs_create_common(hdev); if (lmp_bredr_capable(hdev)) hci_debugfs_create_bredr(hdev); if (lmp_le_capable(hdev)) hci_debugfs_create_le(hdev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9449.47%426.67%
Marcel Holtmann8142.63%960.00%
Andrei Emeltchenko157.89%213.33%
Total190100.00%15100.00%


static int hci_init0_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; BT_DBG("%s %ld", hdev->name, opt); /* Reset */ if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) hci_reset_req(req, 0); /* Read Local Version */ hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); /* Read BD Address */ if (hdev->set_bdaddr) hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann7584.27%125.00%
Andre Guedes55.62%125.00%
Lukasz Rymanowski55.62%125.00%
Johan Hedberg44.49%125.00%
Total89100.00%4100.00%


static int __hci_unconf_init(struct hci_dev *hdev) { int err; if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) return 0; err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; if (hci_dev_test_flag(hdev, HCI_SETUP)) hci_debugfs_create_basic(hdev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann6085.71%450.00%
Lukasz Rymanowski68.57%112.50%
Johan Hedberg34.29%225.00%
Andrei Emeltchenko11.43%112.50%
Total70100.00%8100.00%


static int hci_scan_req(struct hci_request *req, unsigned long opt) { __u8 scan = opt; BT_DBG("%s %x", req->hdev->name, scan); /* Inquiry and Page scans */ hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy2142.86%120.00%
Linus Torvalds1734.69%120.00%
Johan Hedberg1020.41%240.00%
Marcel Holtmann12.04%120.00%
Total49100.00%5100.00%


static int hci_auth_req(struct hci_request *req, unsigned long opt) { __u8 auth = opt; BT_DBG("%s %x", req->hdev->name, auth); /* Authentication */ hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy3061.22%116.67%
Johan Hedberg1020.41%233.33%
Linus Torvalds816.33%233.33%
Marcel Holtmann12.04%116.67%
Total49100.00%6100.00%


static int hci_encrypt_req(struct hci_request *req, unsigned long opt) { __u8 encrypt = opt; BT_DBG("%s %x", req->hdev->name, encrypt); /* Encryption */ hci_req_add(req, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy2959.18%116.67%
Johan Hedberg1020.41%233.33%
Linus Torvalds816.33%116.67%
Marcel Holtmann24.08%233.33%
Total49100.00%6100.00%


static int hci_linkpol_req(struct hci_request *req, unsigned long opt) { __le16 policy = cpu_to_le16(opt); BT_DBG("%s %x", req->hdev->name, policy); /* Default link policy */ hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann4280.77%250.00%
Johan Hedberg1019.23%250.00%
Total52100.00%4100.00%

/* Get HCI device by index. * Device is held on return. */
struct hci_dev *hci_dev_get(int index) { struct hci_dev *hdev = NULL, *d; BT_DBG("%d", index); if (index < 0) return NULL; read_lock(&hci_dev_list_lock); list_for_each_entry(d, &hci_dev_list, list) { if (d->id == index) { hdev = hci_dev_hold(d); break; } } read_unlock(&hci_dev_list_lock); return hdev; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy4556.96%342.86%
Linus Torvalds2632.91%228.57%
Luiz Augusto von Dentz67.59%114.29%
Maxim Krasnyansky22.53%114.29%
Total79100.00%7100.00%

/* ---- Inquiry support ---- */
bool hci_discovery_active(struct hci_dev *hdev) { struct discovery_state *discov = &hdev->discovery; switch (discov->state) { case DISCOVERY_FINDING: case DISCOVERY_RESOLVING: return true; default: return false; } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg3175.61%133.33%
Andre Guedes1024.39%266.67%
Total41100.00%3100.00%


void hci_discovery_set_state(struct hci_dev *hdev, int state) { int old_state = hdev->discovery.state; BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state); if (old_state == state) return; hdev->discovery.state = state; switch (state) { case DISCOVERY_STOPPED: hci_update_background_scan(hdev); if (old_state != DISCOVERY_STARTING) mgmt_discovering(hdev, 0); break; case DISCOVERY_STARTING: break; case DISCOVERY_FINDING: mgmt_discovering(hdev, 1); break; case DISCOVERY_RESOLVING: break; case DISCOVERY_STOPPING: break; } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9388.57%342.86%
Andre Guedes1211.43%457.14%
Total105100.00%7100.00%


void hci_inquiry_cache_flush(struct hci_dev *hdev) { struct discovery_state *cache = &hdev->discovery; struct inquiry_entry *p, *n; list_for_each_entry_safe(p, n, &cache->all, all) { list_del(&p->all); kfree(p); } INIT_LIST_HEAD(&cache->unknown); INIT_LIST_HEAD(&cache->resolve); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg4260.87%342.86%
Maksim Krasnyanskiy1724.64%114.29%
Linus Torvalds913.04%228.57%
Andre Guedes11.45%114.29%
Total69100.00%7100.00%


struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr) { struct discovery_state *cache = &hdev->discovery; struct inquiry_entry *e; BT_DBG("cache %p, %pMR", cache, bdaddr); list_for_each_entry(e, &cache->all, all) { if (!bacmp(&e->data.bdaddr, bdaddr)) return e; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg3447.89%342.86%
Linus Torvalds3042.25%114.29%
Maksim Krasnyanskiy57.04%114.29%
Marcel Holtmann11.41%114.29%
Andrei Emeltchenko11.41%114.29%
Total71100.00%7100.00%


struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, bdaddr_t *bdaddr) { struct discovery_state *cache = &hdev->discovery; struct inquiry_entry *e; BT_DBG("cache %p, %pMR", cache, bdaddr); list_for_each_entry(e, &cache->unknown, list) { if (!bacmp(&e->data.bdaddr, bdaddr)) return e; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg5171.83%342.86%
Maksim Krasnyanskiy1115.49%114.29%
Linus Torvalds79.86%114.29%
Marcel Holtmann11.41%114.29%
Andrei Emeltchenko11.41%114.29%
Total71100.00%7100.00%


struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, bdaddr_t *bdaddr, int state) { struct discovery_state *cache = &hdev->discovery; struct inquiry_entry *e; BT_DBG("cache %p bdaddr %pMR state %d", cache, bdaddr, state); list_for_each_entry(e, &cache->resolve, list) { if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state) return e; if (!bacmp(&e->data.bdaddr, bdaddr)) return e; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9498.95%150.00%
Andrei Emeltchenko11.05%150.00%
Total95100.00%2100.00%


void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, struct inquiry_entry *ie) { struct discovery_state *cache = &hdev->discovery; struct list_head *pos = &cache->resolve; struct inquiry_entry *p; list_del(&ie->list); list_for_each_entry(p, &cache->resolve, list) { if (p->name_state != NAME_PENDING && abs(p->data.rssi) >= abs(ie->data.rssi)) break; pos = &p->list; } list_add(&ie->list, pos); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg102100.00%1100.00%
Total102100.00%1100.00%


u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, bool name_known) { struct discovery_state *cache = &hdev->discovery; struct inquiry_entry *ie; u32 flags = 0; BT_DBG("cache %p, %pMR", cache, &data->bdaddr); hci_remove_remote_oob_data(hdev, &data->bdaddr, BDADDR_BREDR); if (!data->ssp_mode) flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr); if (ie) { if (!ie->data.ssp_mode) flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; if (ie->name_state == NAME_NEEDED && data->rssi != ie->data.rssi) { ie->data.rssi = data->rssi; hci_inquiry_cache_update_resolve(hdev, ie); } goto update; } /* Entry not in the cache. Add new one. */ ie = kzalloc(sizeof(*ie), GFP_KERNEL); if (!ie) { flags |= MGMT_DEV_FOUND_CONFIRM_NAME; goto done; } list_add(&ie->all, &cache->all); if (name_known) { ie->name_state = NAME_KNOWN; } else { ie->name_state = NAME_NOT_KNOWN; list_add(&ie->list, &cache->unknown); } update: if (name_known && ie->name_state != NAME_KNOWN && ie->name_state != NAME_PENDING) { ie->name_state = NAME_KNOWN; list_del(&ie->list); } memcpy(&ie->data, data, sizeof(*data)); ie->timestamp = jiffies; cache->timestamp = jiffies; if (ie->name_state == NAME_NOT_KNOWN) flags |= MGMT_DEV_FOUND_CONFIRM_NAME; done: return flags; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg14749.33%840.00%
Maksim Krasnyanskiy5719.13%210.00%
Marcel Holtmann4414.77%525.00%
Linus Torvalds248.05%210.00%
Andrei Emeltchenko165.37%210.00%
Szymon Janc103.36%15.00%
Total298100.00%20100.00%


static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf) { struct discovery_state *cache = &hdev->discovery; struct inquiry_info *info = (struct inquiry_info *) buf; struct inquiry_entry *e; int copied = 0; list_for_each_entry(e, &cache->all, all) { struct inquiry_data *data = &e->data; if (copied >= num) break; bacpy(&info->bdaddr, &data->bdaddr); info->pscan_rep_mode = data->pscan_rep_mode; info->pscan_period_mode = data->pscan_period_mode; info->pscan_mode = data->pscan_mode; memcpy(info->dev_class, data->dev_class, 3); info->clock_offset = data->clock_offset; info++; copied++; } BT_DBG("cache %p, copied %d", cache, copied); return copied; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann6441.83%225.00%
Maksim Krasnyanskiy4932.03%225.00%
Johan Hedberg2013.07%337.50%
Linus Torvalds2013.07%112.50%
Total153100.00%8100.00%


static int hci_inq_req(struct hci_request *req, unsigned long opt) { struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt; struct hci_dev *hdev = req->hdev; struct hci_cp_inquiry cp; BT_DBG("%s", hdev->name); if (test_bit(HCI_INQUIRY, &hdev->flags)) return 0; /* Start Inquiry */ memcpy(&cp.lap, &ir->lap, 3); cp.length = ir->length; cp.num_rsp = ir->num_rsp; hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy6355.26%342.86%
Linus Torvalds3026.32%114.29%
Johan Hedberg2017.54%228.57%
Marcel Holtmann10.88%114.29%
Total114100.00%7100.00%


int hci_inquiry(void __user *arg) { __u8 __user *ptr = arg; struct hci_inquiry_req ir; struct hci_dev *hdev; int err = 0, do_inquiry = 0, max_rsp; long timeo; __u8 *buf; if (copy_from_user(&ir, ptr, sizeof(ir))) return -EFAULT; hdev = hci_dev_get(ir.dev_id); if (!hdev) return -ENODEV; if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { err = -EBUSY; goto done; } if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { err = -EOPNOTSUPP; goto done; } if (hdev->dev_type != HCI_PRIMARY) { err = -EOPNOTSUPP; goto done; } if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) { err = -EOPNOTSUPP; goto done; } hci_dev_lock(hdev); if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX || inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) { hci_inquiry_cache_flush(hdev); do_inquiry = 1; } hci_dev_unlock(hdev); timeo = ir.length * msecs_to_jiffies(2000); if (do_inquiry) { err = hci_req_sync(hdev, hci_inq_req, (unsigned long) &ir, timeo, NULL); if (err < 0) goto done; /* Wait until Inquiry procedure finishes (HCI_INQUIRY flag is * cleared). If it is interrupted by a signal, return -EINTR. */ if (wait_on_bit(&hdev->flags, HCI_INQUIRY, TASK_INTERRUPTIBLE)) return -EINTR; } /* for unlimited number of responses we will use buffer with * 255 entries */ max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp; /* cache_dump can't sleep. Therefore we allocate temp buffer and then * copy it to the user space. */ buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL); if (!buf) { err = -ENOMEM; goto done; } hci_dev_lock(hdev); ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf); hci_dev_unlock(hdev); BT_DBG("num_rsp %d", ir.num_rsp); if (!copy_to_user(ptr, &ir, sizeof(ir))) { ptr += sizeof(ir); if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) * ir.num_rsp)) err = -EFAULT; } else err = -EFAULT; kfree(buf); done: hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy17341.89%29.09%
Marcel Holtmann8821.31%836.36%
Linus Torvalds7117.19%14.55%
Andre Guedes204.84%29.09%
Johan Hedberg204.84%313.64%
Andrei Emeltchenko174.12%29.09%
Al Viro102.42%14.55%
Randy Dunlap92.18%14.55%
Gustavo Fernando Padovan51.21%29.09%
Total413100.00%22100.00%


static int hci_dev_do_open(struct hci_dev *hdev) { int ret = 0; BT_DBG("%s %p", hdev->name, hdev); hci_req_sync_lock(hdev); if (hci_dev_test_flag(hdev, HCI_UNREGISTER)) { ret = -ENODEV; goto done; } if (!hci_dev_test_flag(hdev, HCI_SETUP) && !hci_dev_test_flag(hdev, HCI_CONFIG)) { /* Check for rfkill but allow the HCI setup stage to * proceed (which in itself doesn't cause any RF activity). */ if (hci_dev_test_flag(hdev, HCI_RFKILLED)) { ret = -ERFKILL; goto done; } /* Check for valid public address or a configured static * random adddress, but let the HCI setup proceed to * be able to determine if there is a public address * or not. * * In case of user channel usage, it is not important * if a public address or static random address is * available. * * This check is only valid for BR/EDR controllers * since AMP controllers do not have an address. */ if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && hdev->dev_type == HCI_PRIMARY && !bacmp(&hdev->bdaddr, BDADDR_ANY) && !bacmp(&hdev->static_addr, BDADDR_ANY)) { ret = -EADDRNOTAVAIL; goto done; } } if (test_bit(HCI_UP, &hdev->flags)) { ret = -EALREADY; goto done; } if (hdev->open(hdev)) { ret = -EIO; goto done; } set_bit(HCI_RUNNING, &hdev->flags); hci_sock_dev_event(hdev, HCI_DEV_OPEN); atomic_set(&hdev->cmd_cnt, 1); set_bit(HCI_INIT, &hdev->flags); if (hci_dev_test_flag(hdev, HCI_SETUP)) { hci_sock_dev_event(hdev, HCI_DEV_SETUP); if (hdev->setup) ret = hdev->setup(hdev); /* The transport driver can set these quirks before * creating the HCI device or in its setup callback. * * In case any of them is set, the controller has to * start up as unconfigured. */ if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) || test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks)) hci_dev_set_flag(hdev, HCI_UNCONFIGURED); /* For an unconfigured controller it is required to * read at least the version information provided by * the Read Local Version Information command. * * If the set_bdaddr driver callback is provided, then * also the original Bluetooth public device address * will be read using the Read BD Address command. */ if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) ret = __hci_unconf_init(hdev); } if (hci_dev_test_flag(hdev, HCI_CONFIG)) { /* If public address change is configured, ensure that * the address gets programmed. If the driver does not * support changing the public address, fail the power * on procedure. */ if (bacmp(&hdev->public_addr, BDADDR_ANY) && hdev->set_bdaddr) ret = hdev->set_bdaddr(hdev, &hdev->public_addr); else ret = -EADDRNOTAVAIL; } if (!ret) { if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED) && !hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { ret = __hci_init(hdev); if (!ret && hdev->post_init) ret = hdev->post_init(hdev); } } /* If the HCI Reset command is clearing all diagnostic settings, * then they need to be reprogrammed after the init procedure * completed. */ if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) && hdev->set_diag) ret = hdev->set_diag(hdev, true); clear_bit(HCI_INIT, &hdev->flags); if (!ret) { hci_dev_hold(hdev); hci_dev_set_flag(hdev, HCI_RPA_EXPIRED); set_bit(HCI_UP, &hdev->flags); hci_sock_dev_event(hdev, HCI_DEV_UP); hci_leds_update_powered(hdev, true); if (!hci_dev_test_flag(hdev, HCI_SETUP) && !hci_dev_test_flag(hdev, HCI_CONFIG) && !hci_dev_test_flag(hdev, HCI_UNCONFIGURED) && !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && hci_dev_test_flag(hdev, HCI_MGMT) && hdev->dev_type == HCI_PRIMARY) { ret = __hci_req_hci_power_on(hdev); mgmt_power_on(hdev, ret); } } else { /* Init failed, cleanup */ flush_work(&hdev->tx_work); flush_work(&hdev->cmd_work); flush_work(&hdev->rx_work); skb_queue_purge(&hdev->cmd_q); skb_queue_purge(&hdev->rx_q); if (hdev->flush) hdev->flush(hdev); if (hdev->sent_cmd) { kfree_skb(hdev->sent_cmd); hdev->sent_cmd = NULL; } clear_bit(HCI_RUNNING, &hdev->flags); hci_sock_dev_event(hdev, HCI_DEV_CLOSE); hdev->close(hdev); hdev->flags &= BIT(HCI_RAW); } done: hci_req_sync_unlock(hdev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann40260.00%2661.90%
Maksim Krasnyanskiy10916.27%24.76%
Linus Torvalds8412.54%24.76%
Johan Hedberg466.87%716.67%
Johan Hovold162.39%12.38%
Heiner Kallweit71.04%12.38%
Gustavo Fernando Padovan40.60%24.76%
Andrei Emeltchenko20.30%12.38%
Total670100.00%42100.00%

/* ---- HCI ioctl helpers ---- */
int hci_dev_open(__u16 dev) { struct hci_dev *hdev; int err; hdev = hci_dev_get(dev); if (!hdev) return -ENODEV; /* Devices that are marked as unconfigured can only be powered * up as user channel. Trying to bring them up as normal devices * will result into a failure. Only user channel operation is * possible. * * When this function is called for a user channel, the flag * HCI_USER_CHANNEL will be set first before attempting to * open the device. */ if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) && !hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { err = -EOPNOTSUPP; goto done; } /* We need to ensure that no other power on/off work is pending * before proceeding to call hci_dev_do_open. This is * particularly important if the setup procedure has not yet * completed. */ if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) cancel_delayed_work(&hdev->power_off); /* After this call it is guaranteed that the setup procedure * has finished. This means that error conditions like RFKILL * or no valid public or static random address apply. */ flush_workqueue(hdev->req_workqueue); /* For controllers not using the management interface and that * are brought up using legacy ioctl, set the HCI_BONDABLE bit * so that pairing works for them. Once the management interface * is in use this bit will be cleared again and userspace has * to explicitly enable it. */ if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && !hci_dev_test_flag(hdev, HCI_MGMT)) hci_dev_set_flag(hdev, HCI_BONDABLE); err = hci_dev_do_open(hdev); done: hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6248.06%325.00%
Marcel Holtmann5945.74%758.33%
Linus Torvalds53.88%18.33%
Maksim Krasnyanskiy32.33%18.33%
Total129100.00%12100.00%

/* This function requires the caller holds hdev->lock */
static void hci_pend_le_actions_clear(struct hci_dev *hdev) { struct hci_conn_params *p; list_for_each_entry(p, &hdev->le_conn_params, list) { if (p->conn) { hci_conn_drop(p->conn); hci_conn_put(p->conn); p->conn = NULL; } list_del_init(&p->action); } BT_DBG("All LE pending actions cleared"); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6394.03%583.33%
Linus Torvalds45.97%116.67%
Total67100.00%6100.00%


int hci_dev_do_close(struct hci_dev *hdev) { bool auto_off; BT_DBG("%s %p", hdev->name, hdev); if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) && !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && test_bit(HCI_UP, &hdev->flags)) { /* Execute vendor specific shutdown routine */ if (hdev->shutdown) hdev->shutdown(hdev); } cancel_delayed_work(&hdev->power_off); hci_request_cancel_all(hdev); hci_req_sync_lock(hdev); if (!test_and_clear_bit(HCI_UP, &hdev->flags)) { cancel_delayed_work_sync(&hdev->cmd_timer); hci_req_sync_unlock(hdev); return 0; } hci_leds_update_powered(hdev, false); /* Flush RX and TX works */ flush_work(&hdev->tx_work); flush_work(&hdev->rx_work); if (hdev->discov_timeout > 0) { hdev->discov_timeout = 0; hci_dev_clear_flag(hdev, HCI_DISCOVERABLE); hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE); } if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) cancel_delayed_work(&hdev->service_cache); if (hci_dev_test_flag(hdev, HCI_MGMT)) cancel_delayed_work_sync(&hdev->rpa_expired); /* Avoid potential lockdep warnings from the *_flush() calls by * ensuring the workqueue is empty up front. */ drain_workqueue(hdev->workqueue); hci_dev_lock(hdev); hci_discovery_set_state(hdev, DISCOVERY_STOPPED); auto_off = hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF); if (!auto_off && hdev->dev_type == HCI_PRIMARY && !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && hci_dev_test_flag(hdev, HCI_MGMT)) __mgmt_power_off(hdev); hci_inquiry_cache_flush(hdev); hci_pend_le_actions_clear(hdev); hci_conn_hash_flush(hdev); hci_dev_unlock(hdev); smp_unregister(hdev); hci_sock_dev_event(hdev, HCI_DEV_DOWN); if (hdev->flush) hdev->flush(hdev); /* Reset device */ skb_queue_purge(&hdev->cmd_q); atomic_set(&hdev->cmd_cnt, 1); if (test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks) && !auto_off && !hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { set_bit(HCI_INIT, &hdev->flags); __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT, NULL); clear_bit(HCI_INIT, &hdev->flags); } /* flush cmd work */ flush_work(&hdev->cmd_work); /* Drop queues */ skb_queue_purge(&hdev->rx_q); skb_queue_purge(&hdev->cmd_q); skb_queue_purge(&hdev->raw_q); /* Drop last sent command */ if (hdev->sent_cmd) { cancel_delayed_work_sync(&hdev->cmd_timer); kfree_skb(hdev->sent_cmd); hdev->sent_cmd = NULL; } clear_bit(HCI_RUNNING, &hdev->flags); hci_sock_dev_event(hdev, HCI_DEV_CLOSE); /* After this point our queues are empty * and no tasks are scheduled. */ hdev->close(hdev); /* Clear flags */ hdev->flags &= BIT(HCI_RAW); hci_dev_clear_volatile_flags(hdev); /* Controller radio is available but is currently powered down */ hdev->amp_status = AMP_STATUS_POWERED_DOWN; memset(hdev->eir, 0, sizeof(hdev->eir)); memset(hdev->dev_class, 0, sizeof(hdev->dev_class)); bacpy(&hdev->random_addr, BDADDR_ANY); hci_req_sync_unlock(hdev); hci_dev_put(hdev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg13424.23%1933.93%
Linus Torvalds13023.51%23.57%
Marcel Holtmann11120.07%2035.71%
Maksim Krasnyanskiy8815.91%23.57%
Tedd Ho-Jeong An234.16%11.79%
Vinicius Costa Gomes223.98%23.57%
Gabriele Mazzotta101.81%11.79%
Loic Poulain81.45%11.79%
Gustavo Fernando Padovan81.45%35.36%
Heiner Kallweit71.27%11.79%
Andrei Emeltchenko71.27%23.57%
Andre Guedes50.90%23.57%
Total553100.00%56100.00%


int hci_dev_close(__u16 dev) { struct hci_dev *hdev; int err; hdev = hci_dev_get(dev); if (!hdev) return -ENODEV; if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { err = -EBUSY; goto done; } if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) cancel_delayed_work(&hdev->power_off); err = hci_dev_do_close(hdev); done: hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann3844.71%457.14%
Linus Torvalds3136.47%114.29%
Maksim Krasnyanskiy1112.94%114.29%
Andrei Emeltchenko55.88%114.29%
Total85100.00%7100.00%


static int hci_dev_do_reset(struct hci_dev *hdev) { int ret; BT_DBG("%s %p", hdev->name, hdev); hci_req_sync_lock(hdev); /* Drop queues */ skb_queue_purge(&hdev->rx_q); skb_queue_purge(&hdev->cmd_q); /* Avoid potential lockdep warnings from the *_flush() calls by * ensuring the workqueue is empty up front. */ drain_workqueue(hdev->workqueue); hci_dev_lock(hdev); hci_inquiry_cache_flush(hdev); hci_conn_hash_flush(hdev); hci_dev_unlock(hdev); if (hdev->flush) hdev->flush(hdev); atomic_set(&hdev->cmd_cnt, 1); hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0; ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT, NULL); hci_req_sync_unlock(hdev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds7755.40%215.38%
Maksim Krasnyanskiy2115.11%17.69%
Marcel Holtmann1913.67%323.08%
Johan Hedberg139.35%430.77%
Ville Tervo64.32%17.69%
Gustavo Fernando Padovan21.44%17.69%
Andre Guedes10.72%17.69%
Total139100.00%13100.00%


int hci_dev_reset(__u16 dev) { struct hci_dev *hdev; int err; hdev = hci_dev_get(dev); if (!hdev) return -ENODEV; if (!test_bit(HCI_UP, &hdev->flags)) { err = -ENETDOWN; goto done; } if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { err = -EBUSY; goto done; } if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { err = -EOPNOTSUPP; goto done; } err = hci_dev_do_reset(hdev); done: hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann10292.73%250.00%
Linus Torvalds87.27%250.00%
Total110100.00%4100.00%


int hci_dev_reset_stat(__u16 dev) { struct hci_dev *hdev; int ret = 0; hdev = hci_dev_get(dev); if (!hdev) return -ENODEV; if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { ret = -EBUSY; goto done; } if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { ret = -EOPNOTSUPP; goto done; } memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); done: hci_dev_put(hdev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds5354.08%233.33%
Marcel Holtmann4040.82%350.00%
Andrei Emeltchenko55.10%116.67%
Total98100.00%6100.00%


static void hci_update_scan_state(struct hci_dev *hdev, u8 scan) { bool conn_changed, discov_changed; BT_DBG("%s scan 0x%02x", hdev->name, scan); if ((scan & SCAN_PAGE)) conn_changed = !hci_dev_test_and_set_flag(hdev, HCI_CONNECTABLE); else conn_changed = hci_dev_test_and_clear_flag(hdev, HCI_CONNECTABLE); if ((scan & SCAN_INQUIRY)) { discov_changed = !hci_dev_test_and_set_flag(hdev, HCI_DISCOVERABLE); } else { hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE); discov_changed = hci_dev_test_and_clear_flag(hdev, HCI_DISCOVERABLE); } if (!hci_dev_test_flag(hdev, HCI_MGMT)) return; if (conn_changed || discov_changed) { /* In case this was disabled through mgmt */ hci_dev_set_flag(hdev, HCI_BREDR_ENABLED); if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) hci_req_update_adv_data(hdev, hdev->cur_adv_instance); mgmt_new_settings(hdev); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg10772.79%436.36%
Marcel Holtmann3020.41%654.55%
Linus Torvalds106.80%19.09%
Total147100.00%11100.00%


int hci_dev_cmd(unsigned int cmd, void __user *arg) { struct hci_dev *hdev; struct hci_dev_req dr; int err = 0; if (copy_from_user(&dr, arg, sizeof(dr))) return -EFAULT; hdev = hci_dev_get(dr.dev_id); if (!hdev) return -ENODEV; if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { err = -EBUSY; goto done; } if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { err = -EOPNOTSUPP; goto done; } if (hdev->dev_type != HCI_PRIMARY) { err = -EOPNOTSUPP; goto done; } if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) { err = -EOPNOTSUPP; goto done; } switch (cmd) { case HCISETAUTH: err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, HCI_INIT_TIMEOUT, NULL); break; case HCISETENCRYPT: if (!lmp_encrypt_capable(hdev)) { err = -EOPNOTSUPP; break; } if (!test_bit(HCI_AUTH, &hdev->flags)) { /* Auth must be enabled first */ err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, HCI_INIT_TIMEOUT, NULL); if (err) break; } err = hci_req_sync(hdev, hci_encrypt_req, dr.dev_opt, HCI_INIT_TIMEOUT, NULL); break; case HCISETSCAN: err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt, HCI_INIT_TIMEOUT, NULL); /* Ensure that the connectable and discoverable states * get correctly modified as this was a non-mgmt change. */ if (!err) hci_update_scan_state(hdev, dr.dev_opt); break; case HCISETLINKPOL: err = hci_req_sync(hdev, hci_linkpol_req, dr.dev_opt, HCI_INIT_TIMEOUT, NULL); break; case HCISETLINKMODE: hdev->link_mode = ((__u16) dr.dev_opt) & (HCI_LM_MASTER | HCI_LM_ACCEPT); break; case HCISETPTYPE: hdev->pkt_type = (__u16) dr.dev_opt; break; case HCISETACLMTU: hdev->acl_mtu = *((__u16 *) &dr.dev_opt + 1); hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0); break; case HCISETSCOMTU: hdev->sco_mtu = *((__u16 *) &dr.dev_opt + 1); hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0); break; default: err = -EINVAL; break; } done: hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy19645.06%15.88%
Linus Torvalds10123.22%211.76%
Marcel Holtmann8319.08%635.29%
Johan Hedberg4710.80%635.29%
Andrei Emeltchenko51.15%15.88%
Al Viro30.69%15.88%
Total435100.00%17100.00%


int hci_get_dev_list(void __user *arg) { struct hci_dev *hdev; struct hci_dev_list_req *dl; struct hci_dev_req *dr; int n = 0, size, err; __u16 dev_num; if (get_user(dev_num, (__u16 __user *) arg)) return -EFAULT; if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr)) return -EINVAL; size = sizeof(*dl) + dev_num * sizeof(*dr); dl = kzalloc(size, GFP_KERNEL); if (!dl) return -ENOMEM; dr = dl->dev_req; read_lock(&hci_dev_list_lock); list_for_each_entry(hdev, &hci_dev_list, list) { unsigned long flags = hdev->flags; /* When the auto-off is configured it means the transport * is running, but in that case still indicate that the * device is actually down. */ if (hci_dev_test_flag(hdev, HCI_AUTO_OFF)) flags &= ~BIT(HCI_UP); (dr + n)->dev_id = hdev->id; (dr + n)->dev_opt = flags; if (++n >= dev_num) break; } read_unlock(&hci_dev_list_lock); dl->dev_num = n; size = sizeof(*dl) + n * sizeof(*dr); err = copy_to_user(arg, dl, size); kfree(dl); return err ? -EFAULT : 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds13053.72%318.75%
Marcel Holtmann4619.01%318.75%
Maksim Krasnyanskiy3414.05%318.75%
Johan Hedberg114.55%212.50%
Luiz Augusto von Dentz93.72%16.25%
Andrei Emeltchenko52.07%16.25%
Al Viro41.65%16.25%
Gustavo Fernando Padovan20.83%16.25%
Vegard Nossum10.41%16.25%
Total242100.00%16100.00%


int hci_get_dev_info(void __user *arg) { struct hci_dev *hdev; struct hci_dev_info di; unsigned long flags; int err = 0; if (copy_from_user(&di, arg, sizeof(di))) return -EFAULT; hdev = hci_dev_get(di.dev_id); if (!hdev) return -ENODEV; /* When the auto-off is configured it means the transport * is running, but in that case still indicate that the * device is actually down. */ if (hci_dev_test_flag(hdev, HCI_AUTO_OFF)) flags = hdev->flags & ~BIT(HCI_UP); else flags = hdev->flags; strcpy(di.name, hdev->name); di.bdaddr = hdev->bdaddr; di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); di.flags = flags; di.pkt_type = hdev->pkt_type; if (lmp_bredr_capable(hdev)) { di.acl_mtu = hdev->acl_mtu; di.acl_pkts = hdev->acl_pkts; di.sco_mtu = hdev->sco_mtu; di.sco_pkts = hdev->sco_pkts; } else { di.acl_mtu = hdev->le_mtu; di.acl_pkts = hdev->le_pkts; di.sco_mtu = 0; di.sco_pkts = 0; } di.link_policy = hdev->link_policy; di.link_mode = hdev->link_mode; memcpy(&di.stat, &hdev->stat, sizeof(di.stat)); memcpy(&di.features, &hdev->features, sizeof(di.features)); if (copy_to_user(arg, &di, sizeof(di))) err = -EFAULT; hci_dev_put(hdev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds18861.24%214.29%
Johan Hedberg5517.92%428.57%
Marcel Holtmann3511.40%535.71%
Maksim Krasnyanskiy216.84%17.14%
Andrei Emeltchenko51.63%17.14%
Al Viro30.98%17.14%
Total307100.00%14100.00%

/* ---- Interface to HCI drivers ---- */
static int hci_rfkill_set_block(void *data, bool blocked) { struct hci_dev *hdev = data; BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked); if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) return -EBUSY; if (blocked) { hci_dev_set_flag(hdev, HCI_RFKILLED); if (!hci_dev_test_flag(hdev, HCI_SETUP) && !hci_dev_test_flag(hdev, HCI_CONFIG)) hci_dev_do_close(hdev); } else { hci_dev_clear_flag(hdev, HCI_RFKILLED); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann7578.95%675.00%
Johan Hedberg2021.05%225.00%
Total95100.00%8100.00%

static const struct rfkill_ops hci_rfkill_ops = { .set_block = hci_rfkill_set_block, };
static void hci_power_on(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, power_on); int err; BT_DBG("%s", hdev->name); if (test_bit(HCI_UP, &hdev->flags) && hci_dev_test_flag(hdev, HCI_MGMT) && hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) { cancel_delayed_work(&hdev->power_off); hci_req_sync_lock(hdev); err = __hci_req_hci_power_on(hdev); hci_req_sync_unlock(hdev); mgmt_power_on(hdev, err); return; } err = hci_dev_do_open(hdev); if (err < 0) { hci_dev_lock(hdev); mgmt_set_powered_failed(hdev, err); hci_dev_unlock(hdev); return; } /* During the HCI setup phase, a few error conditions are * ignored and they need to be checked now. If they are still * valid, it is important to turn the device back off. */ if (hci_dev_test_flag(hdev, HCI_RFKILLED) || hci_dev_test_flag(hdev, HCI_UNCONFIGURED) || (hdev->dev_type == HCI_PRIMARY && !bacmp(&hdev->bdaddr, BDADDR_ANY) && !bacmp(&hdev->static_addr, BDADDR_ANY))) { hci_dev_clear_flag(hdev, HCI_AUTO_OFF); hci_dev_do_close(hdev); } else if (hci_dev_test_flag(hdev, HCI_AUTO_OFF)) { queue_delayed_work(hdev->req_workqueue, &hdev->power_off, HCI_AUTO_OFF_TIMEOUT); } if (hci_dev_test_and_clear_flag(hdev, HCI_SETUP)) { /* For unconfigured devices, set the HCI_RAW flag * so that userspace can easily identify them. */ if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) set_bit(HCI_RAW, &hdev->flags); /* For fully configured devices, this will send * the Index Added event. For unconfigured devices, * it will send Unconfigued Index Added event. * * Devices with HCI_QUIRK_RAW_DEVICE are ignored * and no event will be send. */ mgmt_index_added(hdev); } else if (hci_dev_test_and_clear_flag(hdev, HCI_CONFIG)) { /* When the controller is now configured, then it * is important to clear the HCI_RAW flag. */ if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) clear_bit(HCI_RAW, &hdev->flags); /* Powering on the controller with HCI_CONFIG set only * happens with the transition from unconfigured to * configured. This will send the Index Added event. */ mgmt_index_added(hdev); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg17559.32%735.00%
Marcel Holtmann10134.24%1050.00%
Jaganath Kanakkassery103.39%15.00%
Wei-Ning Huang82.71%15.00%
Andrei Emeltchenko10.34%15.00%
Total295100.00%20100.00%


static void hci_power_off(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, power_off.work); BT_DBG("%s", hdev->name); hci_dev_do_close(hdev); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg4197.62%266.67%
Marcel Holtmann12.38%133.33%
Total42100.00%3100.00%


static void hci_error_reset(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, error_reset); BT_DBG("%s", hdev->name); if (hdev->hw_error) hdev->hw_error(hdev, hdev->hw_error_code); else BT_ERR("%s hardware error 0x%2.2x", hdev->name, hdev->hw_error_code); if (hci_dev_do_close(hdev)) return; hci_dev_do_open(hdev); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann79100.00%1100.00%
Total79100.00%1100.00%


void hci_uuids_clear(struct hci_dev *hdev) { struct bt_uuid *uuid, *tmp; list_for_each_entry_safe(uuid, tmp, &hdev->uuids, list) { list_del(&uuid->list); kfree(uuid); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg43100.00%3100.00%
Total43100.00%3100.00%


void hci_link_keys_clear(struct hci_dev *hdev) { struct link_key *key; list_for_each_entry_rcu(key, &hdev->link_keys, list) { list_del_rcu(&key->list); kfree_rcu(key, rcu); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg40100.00%3100.00%
Total40100.00%3100.00%


void hci_smp_ltks_clear(struct hci_dev *hdev) { struct smp_ltk *k; list_for_each_entry_rcu(k, &hdev->long_term_keys, list) { list_del_rcu(&k->list); kfree_rcu(k, rcu); } }

Contributors

PersonTokensPropCommitsCommitProp
Vinicius Costa Gomes3485.00%133.33%
Johan Hedberg615.00%266.67%
Total40100.00%3100.00%


void hci_smp_irks_clear(struct hci_dev *hdev) { struct smp_irk *k; list_for_each_entry_rcu(k, &hdev->identity_resolving_keys, list) { list_del_rcu(&k->list); kfree_rcu(k, rcu); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg40100.00%2100.00%
Total40100.00%2100.00%


struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) { struct link_key *k; rcu_read_lock(); list_for_each_entry_rcu(k, &hdev->link_keys, list) { if (bacmp(bdaddr, &k->bdaddr) == 0) { rcu_read_unlock(); return k; } } rcu_read_unlock(); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg5995.16%266.67%
Luiz Augusto von Dentz34.84%133.33%
Total62100.00%3100.00%


static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, u8 key_type, u8 old_key_type) { /* Legacy key */ if (key_type < 0x03) return true; /* Debug keys are insecure so don't store them persistently */ if (key_type == HCI_LK_DEBUG_COMBINATION) return false; /* Changed combination key and there's no previous one */ if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff) return false; /* Security mode 3 case */ if (!conn) return true; /* BR/EDR key derived using SC from an LE link */ if (conn->type == LE_LINK) return true; /* Neither local nor remote side had no-bonding as requirement */ if (conn->auth_type > 0x01 && conn->remote_auth > 0x01) return true; /* Local side had dedicated bonding as requirement */ if (conn->auth_type == 0x02 || conn->auth_type == 0x03) return true; /* Remote side had dedicated bonding as requirement */ if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) return true; /* If none of the above criteria match, then don't store the key * persistently */ return false; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg12693.33%266.67%
Vishal Agarwal96.67%133.33%
Total135100.00%3100.00%


static u8 ltk_role(u8 type) { if (type == SMP_LTK) return HCI_ROLE_MASTER; return HCI_ROLE_SLAVE; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg21100.00%3100.00%
Total21100.00%3100.00%


struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 role) { struct smp_ltk *k; rcu_read_lock(); list_for_each_entry_rcu(k, &hdev->long_term_keys, list) { if (addr_type != k->bdaddr_type || bacmp(bdaddr, &k->bdaddr)) continue; if (smp_ltk_is_sc(k) || ltk_role(k->type) == role) { rcu_read_unlock(); return k; } } rcu_read_unlock(); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Vinicius Costa Gomes5258.43%225.00%
Johan Hedberg3741.57%675.00%
Total89100.00%8100.00%


struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa) { struct smp_irk *irk; rcu_read_lock(); list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) { if (!bacmp(&irk->rpa, rpa)) { rcu_read_unlock(); return irk; } } list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) { if (smp_irk_matches(hdev, irk->val, rpa)) { bacpy(&irk->rpa, rpa); rcu_read_unlock(); return irk; } } rcu_read_unlock(); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg102100.00%2100.00%
Total102100.00%2100.00%


struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type) { struct smp_irk *irk; /* Identity Address must be public or static random */ if (addr_type == ADDR_LE_DEV_RANDOM && (bdaddr->b[5] & 0xc0) != 0xc0) return NULL; rcu_read_lock(); list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) { if (addr_type == irk->addr_type && bacmp(bdaddr, &irk->bdaddr) == 0) { rcu_read_unlock(); return irk; } } rcu_read_unlock(); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg94100.00%3100.00%
Total94100.00%3100.00%


struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len, bool *persistent) { struct link_key *key, *old_key; u8 old_key_type; old_key = hci_find_link_key(hdev, bdaddr); if (old_key) { old_key_type = old_key->type; key = old_key; } else { old_key_type = conn ? conn->key_type : 0xff; key = kzalloc(sizeof(*key), GFP_KERNEL); if (!key) return NULL; list_add_rcu(&key->list, &hdev->link_keys); } BT_DBG("%s key for %pMR type %u", hdev->name, bdaddr, type); /* Some buggy controller combinations generate a changed * combination key for legacy pairing even when there's no * previous key */ if (type == HCI_LK_CHANGED_COMBINATION && (!conn || conn->remote_auth == 0xff) && old_key_type == 0xff) { type = HCI_LK_COMBINATION; if (conn) conn->key_type = type; } bacpy(&key->bdaddr, bdaddr); memcpy(key->val, val, HCI_LINK_KEY_SIZE); key->pin_len = pin_len; if (type == HCI_LK_CHANGED_COMBINATION) key->type = old_key_type; else key->type = type; if (persistent) *persistent = hci_persistent_key(hdev, conn, type, old_key_type); return key; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg23398.73%1076.92%
Andrei Emeltchenko20.85%215.38%
Vishal Agarwal10.42%17.69%
Total236100.00%13100.00%


struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, u8 authenticated, u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand) { struct smp_ltk *key, *old_key; u8 role = ltk_role(type); old_key = hci_find_ltk(hdev, bdaddr, addr_type, role); if (old_key) key = old_key; else { key = kzalloc(sizeof(*key), GFP_KERNEL); if (!key) return NULL; list_add_rcu(&key->list, &hdev->long_term_keys); } bacpy(&key->bdaddr, bdaddr); key->bdaddr_type = addr_type; memcpy(key->val, tk, sizeof(key->val)); key->authenticated = authenticated; key->ediv = ediv; key->rand = rand; key->enc_size = enc_size; key->type = type; return key; }

Contributors

PersonTokensPropCommitsCommitProp
Vinicius Costa Gomes15385.47%327.27%
Johan Hedberg1810.06%654.55%
Marcel Holtmann73.91%19.09%
Andrei Emeltchenko10.56%19.09%
Total179100.00%11100.00%


struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 val[16], bdaddr_t *rpa) { struct smp_irk *irk; irk = hci_find_irk_by_addr(hdev, bdaddr, addr_type); if (!irk) { irk = kzalloc(sizeof(*irk), GFP_KERNEL); if (!irk) return NULL; bacpy(&irk->bdaddr, bdaddr); irk->addr_type = addr_type; list_add_rcu(&irk->list, &hdev->identity_resolving_keys); } memcpy(irk->val, val, 16); bacpy(&irk->rpa, rpa); return irk; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg126100.00%3100.00%
Total126100.00%3100.00%


int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) { struct link_key *key; key = hci_find_link_key(hdev, bdaddr); if (!key) return -ENOENT; BT_DBG("%s removing %pMR", hdev->name, bdaddr); list_del_rcu(&key->list); kfree_rcu(key, rcu); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6598.48%266.67%
Andrei Emeltchenko11.52%133.33%
Total66100.00%3100.00%


int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) { struct smp_ltk *k; int removed = 0; list_for_each_entry_rcu(k, &hdev->long_term_keys, list) { if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type) continue; BT_DBG("%s removing %pMR", hdev->name, bdaddr); list_del_rcu(&k->list); kfree_rcu(k, rcu); removed++; } return removed ? 0 : -ENOENT; }

Contributors

PersonTokensPropCommitsCommitProp
Vinicius Costa Gomes6569.89%120.00%
Johan Hedberg2729.03%360.00%
Andrei Emeltchenko11.08%120.00%
Total93100.00%5100.00%


void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type) { struct smp_irk *k; list_for_each_entry_rcu(k, &hdev->identity_resolving_keys, list) { if (bacmp(bdaddr, &k->bdaddr) || k->addr_type != addr_type) continue; BT_DBG("%s removing %pMR", hdev->name, bdaddr); list_del_rcu(&k->list); kfree_rcu(k, rcu); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg77100.00%3100.00%
Total77100.00%3100.00%


bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) { struct smp_ltk *k; struct smp_irk *irk; u8 addr_type; if (type == BDADDR_BREDR) { if (hci_find_link_key(hdev, bdaddr)) return true; return false; } /* Convert to HCI addr type which struct smp_ltk uses */ if (type == BDADDR_LE_PUBLIC) addr_type = ADDR_LE_DEV_PUBLIC; else addr_type = ADDR_LE_DEV_RANDOM; irk = hci_get_irk(hdev, bdaddr, addr_type); if (irk) { bdaddr = &irk->bdaddr; addr_type = irk->addr_type; } rcu_read_lock(); list_for_each_entry_rcu(k, &hdev->long_term_keys, list) { if (k->bdaddr_type == addr_type && !bacmp(bdaddr, &k->bdaddr)) { rcu_read_unlock(); return true; } } rcu_read_unlock(); return false; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg145100.00%3100.00%
Total145100.00%3100.00%

/* HCI command timer function */
static void hci_cmd_timeout(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_timer.work); if (hdev->sent_cmd) { struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data; u16 opcode = __le16_to_cpu(sent->opcode); BT_ERR("%s command 0x%4.4x tx timeout", hdev->name, opcode); } else { BT_ERR("%s command tx timeout", hdev->name); } atomic_set(&hdev->cmd_cnt, 1); queue_work(hdev->workqueue, &hdev->cmd_work); }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko4845.28%125.00%
Ville Tervo3734.91%125.00%
Marcel Holtmann1514.15%125.00%
Gustavo Fernando Padovan65.66%125.00%
Total106100.00%4100.00%


struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) { struct oob_data *data; list_for_each_entry(data, &hdev->remote_oob_data, list) { if (bacmp(bdaddr, &data->bdaddr) != 0) continue; if (data->bdaddr_type != bdaddr_type) continue; return data; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Szymon Janc4875.00%150.00%
Johan Hedberg1625.00%150.00%
Total64100.00%2100.00%


int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) { struct oob_data *data; data = hci_find_remote_oob_data(hdev, bdaddr, bdaddr_type); if (!data) return -ENOENT; BT_DBG("%s removing %pMR (%u)", hdev->name, bdaddr, bdaddr_type); list_del(&data->list); kfree(data); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Szymon Janc6388.73%150.00%
Johan Hedberg811.27%150.00%
Total71100.00%2100.00%


void hci_remote_oob_data_clear(struct hci_dev *hdev) { struct oob_data *data, *n; list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) { list_del(&data->list); kfree(data); } }

Contributors

PersonTokensPropCommitsCommitProp
Szymon Janc3990.70%133.33%
Marcel Holtmann36.98%133.33%
Johan Hedberg12.33%133.33%
Total43100.00%3100.00%


int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type, u8 *hash192, u8 *rand192, u8 *hash256, u8 *rand256) { struct oob_data *data; data = hci_find_remote_oob_data(hdev, bdaddr, bdaddr_type); if (!data) { data = kmalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; bacpy(&data->bdaddr, bdaddr); data->bdaddr_type = bdaddr_type; list_add(&data->list, &hdev->remote_oob_data); } if (hash192 && rand192) { memcpy(data->hash192, hash192, sizeof(data->hash192)); memcpy(data->rand192, rand192, sizeof(data->rand192)); if (hash256 && rand256) data->present = 0x03; } else { memset(data->hash192, 0, sizeof(data->hash192)); memset(data->rand192, 0, sizeof(data->rand192)); if (hash256 && rand256) data->present = 0x02; else data->present = 0x00; } if (hash256 && rand256) { memcpy(data->hash256, hash256, sizeof(data->hash256)); memcpy(data->rand256, rand256, sizeof(data->rand256)); } else { memset(data->hash256, 0, sizeof(data->hash256)); memset(data->rand256, 0, sizeof(data->rand256)); if (hash192 && rand192) data->present = 0x01; } BT_DBG("%s for %pMR", hdev->name, bdaddr); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann22170.38%325.00%
Johan Hedberg6019.11%541.67%
Antti Julku237.32%216.67%
Szymon Janc92.87%18.33%
Andrei Emeltchenko10.32%18.33%
Total314100.00%12100.00%

/* This function requires the caller holds hdev->lock */
struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance) { struct adv_info *adv_instance; list_for_each_entry(adv_instance, &hdev->adv_instances, list) { if (adv_instance->instance == instance) return adv_instance; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Grandel44100.00%1100.00%
Total44100.00%1100.00%

/* This function requires the caller holds hdev->lock */
struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance) { struct adv_info *cur_instance; cur_instance = hci_find_adv_instance(hdev, instance); if (!cur_instance) return NULL; if (cur_instance == list_last_entry(&hdev->adv_instances, struct adv_info, list)) return list_first_entry(&hdev->adv_instances, struct adv_info, list); else return list_next_entry(cur_instance, list); }

Contributors

PersonTokensPropCommitsCommitProp
Florian Grandel77100.00%1100.00%
Total77100.00%1100.00%

/* This function requires the caller holds hdev->lock */
int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance) { struct adv_info *adv_instance; adv_instance = hci_find_adv_instance(hdev, instance); if (!adv_instance) return -ENOENT; BT_DBG("%s removing %dMR", hdev->name, instance); if (hdev->cur_adv_instance == instance) { if (hdev->adv_instance_timeout) { cancel_delayed_work(&hdev->adv_instance_expire); hdev->adv_instance_timeout = 0; } hdev->cur_adv_instance = 0x00; } list_del(&adv_instance->list); kfree(adv_instance); hdev->adv_instance_cnt--; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Grandel9589.62%266.67%
Johan Hedberg1110.38%133.33%
Total106100.00%3100.00%

/* This function requires the caller holds hdev->lock */
void hci_adv_instances_clear(struct hci_dev *hdev) { struct adv_info *adv_instance, *n; if (hdev->adv_instance_timeout) { cancel_delayed_work(&hdev->adv_instance_expire); hdev->adv_instance_timeout = 0; } list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) { list_del(&adv_instance->list); kfree(adv_instance); } hdev->adv_instance_cnt = 0; hdev->cur_adv_instance = 0x00; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Grandel7192.21%266.67%
Johan Hedberg67.79%133.33%
Total77100.00%3100.00%

/* This function requires the caller holds hdev->lock */
int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, u16 adv_data_len, u8 *adv_data, u16 scan_rsp_len, u8 *scan_rsp_data, u16 timeout, u16 duration) { struct adv_info *adv_instance; adv_instance = hci_find_adv_instance(hdev, instance); if (adv_instance) { memset(adv_instance->adv_data, 0, sizeof(adv_instance->adv_data)); memset(adv_instance->scan_rsp_data, 0, sizeof(adv_instance->scan_rsp_data)); } else { if (hdev->adv_instance_cnt >= HCI_MAX_ADV_INSTANCES || instance < 1 || instance > HCI_MAX_ADV_INSTANCES) return -EOVERFLOW; adv_instance = kzalloc(sizeof(*adv_instance), GFP_KERNEL); if (!adv_instance) return -ENOMEM; adv_instance->pending = true; adv_instance->instance = instance; list_add(&adv_instance->list, &hdev->adv_instances); hdev->adv_instance_cnt++; } adv_instance->flags = flags; adv_instance->adv_data_len = adv_data_len; adv_instance->scan_rsp_len = scan_rsp_len; if (adv_data_len) memcpy(adv_instance->adv_data, adv_data, adv_data_len); if (scan_rsp_len) memcpy(adv_instance->scan_rsp_data, scan_rsp_data, scan_rsp_len); adv_instance->timeout = timeout; adv_instance->remaining_time = timeout; if (duration == 0) adv_instance->duration = HCI_DEFAULT_ADV_DURATION; else adv_instance->duration = duration; BT_DBG("%s for %dMR", hdev->name, instance); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Grandel25599.61%375.00%
Johan Hedberg10.39%125.00%
Total256100.00%4100.00%


struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list, bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *b; list_for_each_entry(b, bdaddr_list, list) { if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type) return b; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann5593.22%150.00%
Johan Hedberg46.78%150.00%
Total59100.00%2100.00%


void hci_bdaddr_list_clear(struct list_head *bdaddr_list) { struct bdaddr_list *b, *n; list_for_each_entry_safe(b, n, bdaddr_list, list) { list_del(&b->list); kfree(b); } }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann2967.44%133.33%
Geliang Tang1023.26%133.33%
Johan Hedberg49.30%133.33%
Total43100.00%3100.00%


int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *entry; if (!bacmp(bdaddr, BDADDR_ANY)) return -EBADF; if (hci_bdaddr_list_lookup(list, bdaddr, type)) return -EEXIST; entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM; bacpy(&entry->bdaddr, bdaddr); entry->bdaddr_type = type; list_add(&entry->list, list); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann8381.37%233.33%
Antti Julku1211.76%233.33%
Johan Hedberg76.86%233.33%
Total102100.00%6100.00%


int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *entry; if (!bacmp(bdaddr, BDADDR_ANY)) { hci_bdaddr_list_clear(list); return 0; } entry = hci_bdaddr_list_lookup(list, bdaddr, type); if (!entry) return -ENOENT; list_del(&entry->list); kfree(entry); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann7393.59%150.00%
Johan Hedberg56.41%150.00%
Total78100.00%2100.00%

/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type) { struct hci_conn_params *params; list_for_each_entry(params, &hdev->le_conn_params, list) { if (bacmp(&params->addr, addr) == 0 && params->addr_type == addr_type) { return params; } } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Andre Guedes62100.00%1100.00%
Total62100.00%1100.00%

/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, bdaddr_t *addr, u8 addr_type) { struct hci_conn_params *param; list_for_each_entry(param, list, action) { if (bacmp(&param->addr, addr) == 0 && param->addr_type == addr_type) return param; } return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Andre Guedes2846.67%228.57%
Marcel Holtmann1728.33%114.29%
Johan Hedberg1423.33%342.86%
Jakub Pawlowski11.67%114.29%
Total60100.00%7100.00%

/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type) { struct hci_conn_params *params; params = hci_conn_params_lookup(hdev, addr, addr_type); if (params) return params; params = kzalloc(sizeof(*params), GFP_KERNEL); if (!params) { BT_ERR("Out of memory"); return NULL; } bacpy(&params->addr, addr); params->addr_type = addr_type; list_add(&params->list, &hdev->le_conn_params); INIT_LIST_HEAD(&params->action); params->conn_min_interval = hdev->le_conn_min_interval; params->conn_max_interval = hdev->le_conn_max_interval; params->conn_latency = hdev->le_conn_latency; params->supervision_timeout = hdev->le_supv_timeout; params->auto_connect = HCI_AUTO_CONN_DISABLED; BT_DBG("addr %pMR (type %u)", addr, addr_type); return params; }

Contributors

PersonTokensPropCommitsCommitProp
Andre Guedes11673.89%450.00%
Marcel Holtmann3321.02%225.00%
Johan Hedberg85.10%225.00%
Total157100.00%8100.00%


static void hci_conn_params_free(struct hci_conn_params *params) { if (params->conn) { hci_conn_drop(params->conn); hci_conn_put(params->conn); } list_del(&params->action); list_del(&params->list); kfree(params); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg3055.56%571.43%
Andre Guedes2037.04%114.29%
Marcel Holtmann47.41%114.29%
Total54100.00%7100.00%

/* This function requires the caller holds hdev->lock */
void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type) { struct hci_conn_params *params; params = hci_conn_params_lookup(hdev, addr, addr_type); if (!params) return; hci_conn_params_free(params); hci_update_background_scan(hdev); BT_DBG("addr %pMR (type %u)", addr, addr_type); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg4577.59%266.67%
Andre Guedes1322.41%133.33%
Total58100.00%3100.00%

/* This function requires the caller holds hdev->lock */
void hci_conn_params_clear_disabled(struct hci_dev *hdev) { struct hci_conn_params *params, *tmp; list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) { if (params->auto_connect != HCI_AUTO_CONN_DISABLED) continue; /* If trying to estabilish one time connection to disabled * device, leave the params, but mark them as just once. */ if (params->explicit_connect) { params->auto_connect = HCI_AUTO_CONN_EXPLICIT; continue; } list_del(&params->list); kfree(params); } BT_DBG("All LE disabled connection parameters were removed"); }

Contributors

PersonTokensPropCommitsCommitProp
Andre Guedes3446.58%250.00%
Johan Hedberg2331.51%125.00%
Jakub Pawlowski1621.92%125.00%
Total73100.00%4100.00%

/* This function requires the caller holds hdev->lock */
static void hci_conn_params_clear_all(struct hci_dev *hdev) { struct hci_conn_params *params, *tmp; list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) hci_conn_params_free(params); BT_DBG("All LE connection parameters were removed"); }

Contributors

PersonTokensPropCommitsCommitProp
Andre Guedes3076.92%120.00%
Marcel Holtmann615.38%120.00%
Johan Hedberg37.69%360.00%
Total39100.00%5100.00%

/* Copy the Identity Address of the controller. * * If the controller has a public BD_ADDR, then by default use that one. * If this is a LE only controller without a public address, default to * the static random address. * * For debugging purposes it is possible to force controllers with a * public address to use the static random address instead. * * In case BR/EDR has been disabled on a dual-mode controller and * userspace has configured a static address, then that address * becomes the identity address instead of the public BR/EDR address. */
void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *bdaddr_type) { if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) || !bacmp(&hdev->bdaddr, BDADDR_ANY) || (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) && bacmp(&hdev->static_addr, BDADDR_ANY))) { bacpy(bdaddr, &hdev->static_addr); *bdaddr_type = ADDR_LE_DEV_RANDOM; } else { bacpy(bdaddr, &hdev->bdaddr); *bdaddr_type = ADDR_LE_DEV_PUBLIC; } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6468.82%125.00%
Andre Guedes2830.11%250.00%
Marcel Holtmann11.08%125.00%
Total93100.00%4100.00%

/* Alloc HCI device */
struct hci_dev *hci_alloc_dev(void) { struct hci_dev *hdev; hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); if (!hdev) return NULL; hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1); hdev->esco_type = (ESCO_HV1); hdev->link_mode = (HCI_LM_ACCEPT); hdev->num_iac = 0x01; /* One IAC support is mandatory */ hdev->io_capability = 0x03; /* No Input No Output */ hdev->manufacturer = 0xffff; /* Default to internal use */ hdev->inq_tx_power = HCI_TX_POWER_INVALID; hdev->adv_tx_power = HCI_TX_POWER_INVALID; hdev->adv_instance_cnt = 0; hdev->cur_adv_instance = 0x00; hdev->adv_instance_timeout = 0; hdev->sniff_max_interval = 800; hdev->sniff_min_interval = 80; hdev->le_adv_channel_map = 0x07; hdev->le_adv_min_interval = 0x0800; hdev->le_adv_max_interval = 0x0800; hdev->le_scan_interval = 0x0060; hdev->le_scan_window = 0x0030; hdev->le_conn_min_interval = 0x0028; hdev->le_conn_max_interval = 0x0038; hdev->le_conn_latency = 0x0000; hdev->le_supv_timeout = 0x002a; hdev->le_def_tx_len = 0x001b; hdev->le_def_tx_time = 0x0148; hdev->le_max_tx_len = 0x001b; hdev->le_max_tx_time = 0x0148; hdev->le_max_rx_len = 0x001b; hdev->le_max_rx_time = 0x0148; hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT; hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT; hdev->conn_info_min_age = DEFAULT_CONN_INFO_MIN_AGE; hdev->conn_info_max_age = DEFAULT_CONN_INFO_MAX_AGE; mutex_init(&hdev->lock); mutex_init(&hdev->req_lock); INIT_LIST_HEAD(&hdev->mgmt_pending); INIT_LIST_HEAD(&hdev->blacklist); INIT_LIST_HEAD(&hdev->whitelist); INIT_LIST_HEAD(&hdev->uuids); INIT_LIST_HEAD(&hdev->link_keys); INIT_LIST_HEAD(&hdev->long_term_keys); INIT_LIST_HEAD(&hdev->identity_resolving_keys); INIT_LIST_HEAD(&hdev->remote_oob_data); INIT_LIST_HEAD(&hdev->le_white_list); INIT_LIST_HEAD(&hdev->le_conn_params); INIT_LIST_HEAD(&hdev->pend_le_conns); INIT_LIST_HEAD(&hdev->pend_le_reports); INIT_LIST_HEAD(&hdev->conn_hash.list); INIT_LIST_HEAD(&hdev->adv_instances); INIT_WORK(&hdev->rx_work, hci_rx_work); INIT_WORK(&hdev->cmd_work, hci_cmd_work); INIT_WORK(&hdev->tx_work, hci_tx_work); INIT_WORK(&hdev->power_on, hci_power_on); INIT_WORK(&hdev->error_reset, hci_error_reset); INIT_DELAYED_WORK(&hdev->power_off, hci_power_off); skb_queue_head_init(&hdev->rx_q); skb_queue_head_init(&hdev->cmd_q); skb_queue_head_init(&hdev->raw_q); init_waitqueue_head(&hdev->req_wait_q); INIT_DELAYED_WORK(&hdev->cmd_timer, hci_cmd_timeout); hci_request_setup(hdev); hci_init_sysfs(hdev); discovery_init(hdev); return hdev; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg31564.29%833.33%
Marcel Holtmann6212.65%520.83%
Florian Grandel265.31%28.33%
David Herrmann224.49%28.33%
Andre Guedes183.67%14.17%
Linus Torvalds153.06%14.17%
Maksim Krasnyanskiy153.06%14.17%
Ville Tervo71.43%14.17%
Andrei Emeltchenko40.82%14.17%
Jakub Pawlowski40.82%14.17%
Wesley Kuo20.41%14.17%
Total490100.00%24100.00%

EXPORT_SYMBOL(hci_alloc_dev); /* Free HCI device */
void hci_free_dev(struct hci_dev *hdev) { /* will free via device release */ put_device(&hdev->dev); }

Contributors

PersonTokensPropCommitsCommitProp
David Herrmann19100.00%1100.00%
Total19100.00%1100.00%

EXPORT_SYMBOL(hci_free_dev); /* Register HCI device */
int hci_register_dev(struct hci_dev *hdev) { int id, error; if (!hdev->open || !hdev->close || !hdev->send) return -EINVAL; /* Do not allow HCI_AMP devices to register at index 0, * so the index can be used as the AMP controller ID. */ switch (hdev->dev_type) { case HCI_PRIMARY: id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL); break; case HCI_AMP: id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL); break; default: return -EINVAL; } if (id < 0) return id; sprintf(hdev->name, "hci%d", id); hdev->id = id; BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); hdev->workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1, hdev->name); if (!hdev->workqueue) { error = -ENOMEM; goto err; } hdev->req_workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1, hdev->name); if (!hdev->req_workqueue) { destroy_workqueue(hdev->workqueue); error = -ENOMEM; goto err; } if (!IS_ERR_OR_NULL(bt_debugfs)) hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); dev_set_name(&hdev->dev, "%s", hdev->name); error = device_add(&hdev->dev); if (error < 0) goto err_wqueue; hci_leds_init(hdev); hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev, RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev); if (hdev->rfkill) { if (rfkill_register(hdev->rfkill) < 0) { rfkill_destroy(hdev->rfkill); hdev->rfkill = NULL; } } if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) hci_dev_set_flag(hdev, HCI_RFKILLED); hci_dev_set_flag(hdev, HCI_SETUP); hci_dev_set_flag(hdev, HCI_AUTO_OFF); if (hdev->dev_type == HCI_PRIMARY) { /* Assume BR/EDR support until proven otherwise (such as * through reading supported features during init. */ hci_dev_set_flag(hdev, HCI_BREDR_ENABLED); } write_lock(&hci_dev_list_lock); list_add(&hdev->list, &hci_dev_list); write_unlock(&hci_dev_list_lock); /* Devices that are marked for raw-only usage are unconfigured * and should not be included in normal operation. */ if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) hci_dev_set_flag(hdev, HCI_UNCONFIGURED); hci_sock_dev_event(hdev, HCI_DEV_REG); hci_dev_hold(hdev); queue_work(hdev->req_workqueue, &hdev->power_on); return id; err_wqueue: destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); err: ida_simple_remove(&hci_index_ida, hdev->id); return error; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann17035.49%1234.29%
David Herrmann11022.96%411.43%
Johan Hedberg8617.95%925.71%
Sasha Levin5010.44%12.86%
Gustavo Fernando Padovan326.68%25.71%
Maksim Krasnyanskiy102.09%25.71%
Kees Cook102.09%12.86%
Heiner Kallweit51.04%12.86%
Andre Guedes20.42%12.86%
Linus Torvalds20.42%12.86%
Maxim Krasnyansky20.42%12.86%
Total479100.00%35100.00%

EXPORT_SYMBOL(hci_register_dev); /* Unregister HCI device */
void hci_unregister_dev(struct hci_dev *hdev) { int id; BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); hci_dev_set_flag(hdev, HCI_UNREGISTER); id = hdev->id; write_lock(&hci_dev_list_lock); list_del(&hdev->list); write_unlock(&hci_dev_list_lock); cancel_work_sync(&hdev->power_on); hci_dev_do_close(hdev); if (!test_bit(HCI_INIT, &hdev->flags) && !hci_dev_test_flag(hdev, HCI_SETUP) && !hci_dev_test_flag(hdev, HCI_CONFIG)) { hci_dev_lock(hdev); mgmt_index_removed(hdev); hci_dev_unlock(hdev); } /* mgmt_index_removed should take care of emptying the * pending list */ BUG_ON(!list_empty(&hdev->mgmt_pending)); hci_sock_dev_event(hdev, HCI_DEV_UNREG); if (hdev->rfkill) { rfkill_unregister(hdev->rfkill); rfkill_destroy(hdev->rfkill); } device_del(&hdev->dev); debugfs_remove_recursive(hdev->debugfs); kfree_const(hdev->hw_info); kfree_const(hdev->fw_info); destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); hci_dev_lock(hdev); hci_bdaddr_list_clear(&hdev->blacklist); hci_bdaddr_list_clear(&hdev->whitelist); hci_uuids_clear(hdev); hci_link_keys_clear(hdev); hci_smp_ltks_clear(hdev); hci_smp_irks_clear(hdev); hci_remote_oob_data_clear(hdev); hci_adv_instances_clear(hdev); hci_bdaddr_list_clear(&hdev->le_white_list); hci_conn_params_clear_all(hdev); hci_discovery_filter_clear(hdev); hci_dev_unlock(hdev); hci_dev_put(hdev); ida_simple_remove(&hci_index_ida, id); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9733.22%1229.27%
Marcel Holtmann7826.71%1229.27%
Maksim Krasnyanskiy4916.78%24.88%
Sasha Levin155.14%12.44%
Gustavo Fernando Padovan144.79%37.32%
Andre Guedes82.74%24.88%
Jiri Slaby51.71%12.44%
Vinicius Costa Gomes51.71%12.44%
Szymon Janc51.71%12.44%
Florian Grandel51.71%12.44%
Johan Hovold41.37%12.44%
Dave Young41.37%12.44%
David Herrmann20.68%24.88%
Linus Torvalds10.34%12.44%
Total292100.00%41100.00%

EXPORT_SYMBOL(hci_unregister_dev); /* Suspend HCI device */
int hci_suspend_dev(struct hci_dev *hdev) { hci_sock_dev_event(hdev, HCI_DEV_SUSPEND); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy1995.00%150.00%
Marcel Holtmann15.00%150.00%
Total20100.00%2100.00%

EXPORT_SYMBOL(hci_suspend_dev); /* Resume HCI device */
int hci_resume_dev(struct hci_dev *hdev) { hci_sock_dev_event(hdev, HCI_DEV_RESUME); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy1995.00%150.00%
Marcel Holtmann15.00%150.00%
Total20100.00%2100.00%

EXPORT_SYMBOL(hci_resume_dev); /* Reset HCI device */
int hci_reset_dev(struct hci_dev *hdev) { const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 }; struct sk_buff *skb; skb = bt_skb_alloc(3, GFP_ATOMIC); if (!skb) return -ENOMEM; hci_skb_pkt_type(skb) = HCI_EVENT_PKT; memcpy(skb_put(skb, 3), hw_err, 3); /* Send Hardware Error to upper stack */ return hci_recv_frame(hdev, skb); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann76100.00%2100.00%
Total76100.00%2100.00%

EXPORT_SYMBOL(hci_reset_dev); /* Receive frame from HCI drivers */
int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) { if (!hdev || (!test_bit(HCI_UP, &hdev->flags) && !test_bit(HCI_INIT, &hdev->flags))) { kfree_skb(skb); return -ENXIO; } if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT && hci_skb_pkt_type(skb) != HCI_ACLDATA_PKT && hci_skb_pkt_type(skb) != HCI_SCODATA_PKT) { kfree_skb(skb); return -EINVAL; } /* Incoming skb */ bt_cb(skb)->incoming = 1; /* Time stamp */ __net_timestamp(skb); skb_queue_tail(&hdev->rx_q, skb); queue_work(hdev->workqueue, &hdev->rx_work); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann12999.23%685.71%
Jorrit Schippers10.77%114.29%
Total130100.00%7100.00%

EXPORT_SYMBOL(hci_recv_frame); /* Receive diagnostic message from HCI drivers */
int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb) { /* Mark as diagnostic packet */ hci_skb_pkt_type(skb) = HCI_DIAG_PKT; /* Time stamp */ __net_timestamp(skb); skb_queue_tail(&hdev->rx_q, skb); queue_work(hdev->workqueue, &hdev->rx_work); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann54100.00%3100.00%
Total54100.00%3100.00%

EXPORT_SYMBOL(hci_recv_diag);
void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...) { va_list vargs; va_start(vargs, fmt); kfree_const(hdev->hw_info); hdev->hw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs); va_end(vargs); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann52100.00%1100.00%
Total52100.00%1100.00%

EXPORT_SYMBOL(hci_set_hw_info);
void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...) { va_list vargs; va_start(vargs, fmt); kfree_const(hdev->fw_info); hdev->fw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs); va_end(vargs); }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann52100.00%1100.00%
Total52100.00%1100.00%

EXPORT_SYMBOL(hci_set_fw_info); /* ---- Interface to upper protocols ---- */
int hci_register_cb(struct hci_cb *cb) { BT_DBG("%p name %s", cb, cb->name); mutex_lock(&hci_cb_list_lock); list_add_tail(&cb->list, &hci_cb_list); mutex_unlock(&hci_cb_list_lock); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann4493.62%133.33%
Johan Hedberg36.38%266.67%
Total47100.00%3100.00%

EXPORT_SYMBOL(hci_register_cb);
int hci_unregister_cb(struct hci_cb *cb) { BT_DBG("%p name %s", cb, cb->name); mutex_lock(&hci_cb_list_lock); list_del(&cb->list); mutex_unlock(&hci_cb_list_lock); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann4295.45%150.00%
Johan Hedberg24.55%150.00%
Total44100.00%2100.00%

EXPORT_SYMBOL(hci_unregister_cb);
static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) { int err; BT_DBG("%s type %d len %d", hdev->name, hci_skb_pkt_type(skb), skb->len); /* Time stamp */ __net_timestamp(skb); /* Send copy to monitor */ hci_send_to_monitor(hdev, skb); if (atomic_read(&hdev->promisc)) { /* Send copy to the sockets */ hci_send_to_sock(hdev, skb); } /* Get rid of skb owner, prior to sending to the driver. */ skb_orphan(skb); if (!test_bit(HCI_RUNNING, &hdev->flags)) { kfree_skb(skb); return; } err = hdev->send(hdev, skb); if (err < 0) { BT_ERR("%s sending frame failed (%d)", hdev->name, err); kfree_skb(skb); } }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann7757.89%872.73%
Linus Torvalds2921.80%218.18%
Maksim Krasnyanskiy2720.30%19.09%
Total133100.00%11100.00%

/* Send HCI command */
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, const void *param) { struct sk_buff *skb; BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); skb = hci_prepare_cmd(hdev, opcode, plen, param); if (!skb) { BT_ERR("%s no memory for command", hdev->name); return -ENOMEM; } /* Stand-alone HCI commands must be flagged as * single-command requests. */ bt_cb(skb)->hci.req_flags |= HCI_REQ_START; skb_queue_tail(&hdev->cmd_q, skb); queue_work(hdev->workqueue, &hdev->cmd_work); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg9990.83%466.67%
Andre Guedes98.26%116.67%
Marcel Holtmann10.92%116.67%
Total109100.00%6100.00%

/* Get data from the previously sent command */
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode) { struct hci_command_hdr *hdr; if (!hdev->sent_cmd) return NULL; hdr = (void *) hdev->sent_cmd->data; if (hdr->opcode != cpu_to_le16(opcode)) return NULL; BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE; }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg3344.00%222.22%
Maksim Krasnyanskiy2229.33%222.22%
Linus Torvalds1621.33%222.22%
Marcel Holtmann34.00%222.22%
Hideaki Yoshifuji / 吉藤英明11.33%111.11%
Total75100.00%9100.00%

/* Send HCI command and wait for command commplete event */
struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param, u32 timeout) { struct sk_buff *skb; if (!test_bit(HCI_UP, &hdev->flags)) return ERR_PTR(-ENETDOWN); bt_dev_dbg(hdev, "opcode 0x%4.4x plen %d", opcode, plen); hci_req_sync_lock(hdev); skb = __hci_cmd_sync(hdev, opcode, plen, param, timeout); hci_req_sync_unlock(hdev); return skb; }

Contributors

PersonTokensPropCommitsCommitProp
Loic Poulain8897.78%150.00%
Johan Hedberg22.22%150.00%
Total90100.00%2100.00%

EXPORT_SYMBOL(hci_cmd_sync); /* Send ACL data */
static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags) { struct hci_acl_hdr *hdr; int len = skb->len; skb_push(skb, HCI_ACL_HDR_SIZE); skb_reset_transport_header(skb); hdr = (struct hci_acl_hdr *)skb_transport_header(skb); hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags)); hdr->dlen = cpu_to_le16(len); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6889.47%350.00%
Linus Torvalds79.21%233.33%
Marcel Holtmann11.32%116.67%
Total76100.00%6100.00%


static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue, struct sk_buff *skb, __u16 flags) { struct hci_conn *conn = chan->conn; struct hci_dev *hdev = conn->hdev; struct sk_buff *list; skb->len = skb_headlen(skb); skb->data_len = 0; hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; switch (hdev->dev_type) { case HCI_PRIMARY: hci_add_acl_hdr(skb, conn->handle, flags); break; case HCI_AMP: hci_add_acl_hdr(skb, chan->handle, flags); break; default: BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type); return; } list = skb_shinfo(skb)->frag_list; if (!list) { /* Non fragmented */ BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len); skb_queue_tail(queue, skb); } else { /* Fragmented */ BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); skb_shinfo(skb)->frag_list = NULL; /* Queue all fragments atomically. We need to use spin_lock_bh * here because of 6LoWPAN links, as there this function is * called from softirq and using normal spin lock could cause * deadlocks. */ spin_lock_bh(&queue->lock); __skb_queue_tail(queue, skb); flags &= ~ACL_START; flags |= ACL_CONT; do { skb = list; list = list->next; hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; hci_add_acl_hdr(skb, conn->handle, flags); BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); __skb_queue_tail(queue, skb); } while (list); spin_unlock_bh(&queue->lock); } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg23684.29%325.00%
Linus Torvalds165.71%18.33%
Arnaldo Carvalho de Melo103.57%216.67%
Andre Guedes82.86%325.00%
Maksim Krasnyanskiy72.50%18.33%
Marcel Holtmann31.07%216.67%
Total280100.00%12100.00%


void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags) { struct hci_dev *hdev = chan->conn->hdev; BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags); hci_queue_acl(chan, &chan->data_q, skb, flags); queue_work(hdev->workqueue, &hdev->tx_work); }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko2638.24%225.00%
Johan Hedberg1927.94%112.50%
Linus Torvalds1217.65%225.00%
Gustavo Fernando Padovan710.29%225.00%
Maksim Krasnyanskiy45.88%112.50%
Total68100.00%8100.00%

/* Send SCO data */
void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb) { struct hci_dev *hdev = conn->hdev; struct hci_sco_hdr hdr; BT_DBG("%s len %d", hdev->name, skb->len); hdr.handle = cpu_to_le16(conn->handle); hdr.dlen = skb->len; skb_push(skb, HCI_SCO_HDR_SIZE); skb_reset_transport_header(skb); memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE); hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; skb_queue_tail(&conn->data_q, skb); queue_work(hdev->workqueue, &hdev->tx_work); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg6153.51%116.67%
Maksim Krasnyanskiy3127.19%116.67%
Linus Torvalds1916.67%233.33%
Marcel Holtmann32.63%233.33%
Total114100.00%6100.00%

/* ---- HCI TX task (outgoing data) ---- */ /* HCI Connection scheduler */
static struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote) { struct hci_conn_hash *h = &hdev->conn_hash; struct hci_conn *conn = NULL, *c; unsigned int num = 0, min = ~0; /* We don't have to lock device here. Connections are always * added and removed with TX task disabled. */ rcu_read_lock(); list_for_each_entry_rcu(c, &h->list, list) { if (c->type != type || skb_queue_empty(&c->data_q)) continue; if (c->state != BT_CONNECTED && c->state != BT_CONFIG) continue; num++; if (c->sent < min) { min = c->sent; conn = c; } if (hci_conn_num(hdev, type) == num) break; } rcu_read_unlock(); if (conn) { int cnt, q; switch (conn->type) { case ACL_LINK: cnt = hdev->acl_cnt; break; case SCO_LINK: case ESCO_LINK: cnt = hdev->sco_cnt; break; case LE_LINK: cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; break; default: cnt = 0; BT_ERR("Unknown link type"); } q = cnt / num; *quote = q ? q : 1; } else *quote = 0; BT_DBG("conn %p quote %d", conn, *quote); return conn; }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy9338.91%216.67%
Ville Tervo5623.43%18.33%
Linus Torvalds3815.90%216.67%
Luiz Augusto von Dentz187.53%216.67%
Marcel Holtmann156.28%18.33%
Maxim Krasnyansky104.18%18.33%
Gustavo Fernando Padovan72.93%18.33%
Hideaki Yoshifuji / 吉藤英明10.42%18.33%
Mikel Astiz10.42%18.33%
Total239100.00%12100.00%


static void hci_link_tx_to(struct hci_dev *hdev, __u8 type) { struct hci_conn_hash *h = &hdev->conn_hash; struct hci_conn *c; BT_ERR("%s link tx timeout", hdev->name); rcu_read_lock(); /* Kill stalled connections */ list_for_each_entry_rcu(c, &h->list, list) { if (c->type == type && c->sent) { BT_ERR("%s killing stalled connection %pMR", hdev->name, &c->dst); hci_disconnect(c, HCI_ERROR_REMOTE_USER_TERM); } } rcu_read_unlock(); }

Contributors

PersonTokensPropCommitsCommitProp
Maxim Krasnyansky7077.78%112.50%
Gustavo Fernando Padovan77.78%112.50%
Ville Tervo66.67%112.50%
Luiz Augusto von Dentz33.33%112.50%
Andrei Emeltchenko22.22%225.00%
Andre Guedes11.11%112.50%
Maksim Krasnyanskiy11.11%112.50%
Total90100.00%8100.00%


static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type, int *quote) { struct hci_conn_hash *h = &hdev->conn_hash; struct hci_chan *chan = NULL; unsigned int num = 0, min = ~0, cur_prio = 0; struct hci_conn *conn; int cnt, q, conn_num = 0; BT_DBG("%s", hdev->name); rcu_read_lock(); list_for_each_entry_rcu(conn, &h->list, list) { struct hci_chan *tmp; if (conn->type != type) continue; if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) continue; conn_num++; list_for_each_entry_rcu(tmp, &conn->chan_list, list) { struct sk_buff *skb; if (skb_queue_empty(&tmp->data_q)) continue; skb = skb_peek(&tmp->data_q); if (skb->priority < cur_prio) continue; if (skb->priority > cur_prio) { num = 0; min = ~0; cur_prio = skb->priority; } num++; if (conn->sent < min) { min = conn->sent; chan = tmp; } } if (hci_conn_num(hdev, type) == conn_num) break; } rcu_read_unlock(); if (!chan) return NULL; switch (chan->conn->type) { case ACL_LINK: cnt = hdev->acl_cnt; break; case AMP_LINK: cnt = hdev->block_cnt; break; case SCO_LINK: case ESCO_LINK: cnt = hdev->sco_cnt; break; case LE_LINK: cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; break; default: cnt = 0; BT_ERR("Unknown link type"); } q = cnt / num; *quote = q ? q : 1; BT_DBG("chan %p quote %d", chan, *quote); return chan; }

Contributors

PersonTokensPropCommitsCommitProp
Luiz Augusto von Dentz31594.03%116.67%
Andrei Emeltchenko102.99%116.67%
Gustavo Fernando Padovan92.69%350.00%
Mikel Astiz10.30%116.67%
Total335100.00%6100.00%


static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type) { struct hci_conn_hash *h = &hdev->conn_hash; struct hci_conn *conn; int num = 0; BT_DBG("%s", hdev->name); rcu_read_lock(); list_for_each_entry_rcu(conn, &h->list, list) { struct hci_chan *chan; if (conn->type != type) continue; if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) continue; num++; list_for_each_entry_rcu(chan, &conn->chan_list, list) { struct sk_buff *skb; if (chan->sent) { chan->sent = 0; continue; } if (skb_queue_empty(&chan->data_q)) continue; skb = skb_peek(&chan->data_q); if (skb->priority >= HCI_PRIO_MAX - 1) continue; skb->priority = HCI_PRIO_MAX - 1; BT_DBG("chan %p skb %p promoted to %d", chan, skb, skb->priority); } if (hci_conn_num(hdev, type) == num) break; } rcu_read_unlock(); }

Contributors

PersonTokensPropCommitsCommitProp
Luiz Augusto von Dentz17795.16%125.00%
Gustavo Fernando Padovan94.84%375.00%
Total186100.00%4100.00%


static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb) { /* Calculate count of blocks used by this packet */ return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len); }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko32100.00%1100.00%
Total32100.00%1100.00%


static void __check_timeout(struct hci_dev *hdev, unsigned int cnt) { if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { /* ACL tx timeout must be longer than maximum * link supervision timeout (40.9 seconds) */ if (!cnt && time_after(jiffies, hdev->acl_last_tx + HCI_ACL_TX_TIMEOUT)) hci_link_tx_to(hdev, ACL_LINK); } }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko3262.75%228.57%
Maksim Krasnyanskiy713.73%114.29%
Marcel Holtmann611.76%228.57%
Linus Torvalds35.88%114.29%
Luiz Augusto von Dentz35.88%114.29%
Total51100.00%7100.00%


static void hci_sched_acl_pkt(struct hci_dev *hdev) { unsigned int cnt = hdev->acl_cnt; struct hci_chan *chan; struct sk_buff *skb; int quote; __check_timeout(hdev, cnt); while (hdev->acl_cnt && (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) { u32 priority = (skb_peek(&chan->data_q))->priority; while (quote-- && (skb = skb_peek(&chan->data_q))) { BT_DBG("chan %p skb %p len %d priority %u", chan, skb, skb->len, skb->priority); /* Stop if priority has changed */ if (skb->priority < priority) break; skb = skb_dequeue(&chan->data_q); hci_conn_enter_active_mode(chan->conn, bt_cb(skb)->force_active); hci_send_frame(hdev, skb); hdev->acl_last_tx = jiffies; hdev->acl_cnt--; chan->sent++; chan->conn->sent++; } } if (cnt != hdev->acl_cnt) hci_prio_recalculate(hdev, ACL_LINK); }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko18395.81%250.00%
Luiz Augusto von Dentz63.14%125.00%
Marcel Holtmann21.05%125.00%
Total191100.00%4100.00%


static void hci_sched_acl_blk(struct hci_dev *hdev) { unsigned int cnt = hdev->block_cnt; struct hci_chan *chan; struct sk_buff *skb; int quote; u8 type; __check_timeout(hdev, cnt); BT_DBG("%s", hdev->name); if (hdev->dev_type == HCI_AMP) type = AMP_LINK; else type = ACL_LINK; while (hdev->block_cnt > 0 && (chan = hci_chan_sent(hdev, type, &quote))) { u32 priority = (skb_peek(&chan->data_q))->priority; while (quote > 0 && (skb = skb_peek(&chan->data_q))) { int blocks; BT_DBG("chan %p skb %p len %d priority %u", chan, skb, skb->len, skb->priority); /* Stop if priority has changed */ if (skb->priority < priority) break; skb = skb_dequeue(&chan->data_q); blocks = __get_blocks(hdev, skb); if (blocks > hdev->block_cnt) return; hci_conn_enter_active_mode(chan->conn, bt_cb(skb)->force_active); hci_send_frame(hdev, skb); hdev->acl_last_tx = jiffies; hdev->block_cnt -= blocks; quote -= blocks; chan->sent += blocks; chan->conn->sent += blocks; } } if (cnt != hdev->block_cnt) hci_prio_recalculate(hdev, type); }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko10240.64%321.43%
Luiz Augusto von Dentz6927.49%321.43%
Maksim Krasnyanskiy3915.54%17.14%
Linus Torvalds239.16%214.29%
Jaikumar Ganesh72.79%17.14%
Marcel Holtmann72.79%214.29%
Maxim Krasnyansky31.20%17.14%
Ville Tervo10.40%17.14%
Total251100.00%14100.00%


static void hci_sched_acl(struct hci_dev *hdev) { BT_DBG("%s", hdev->name); /* No ACL link over BR/EDR controller */ if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_PRIMARY) return; /* No AMP link over AMP controller */ if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP) return; switch (hdev->flow_ctl_mode) { case HCI_FLOW_CTL_MODE_PACKET_BASED: hci_sched_acl_pkt(hdev); break; case HCI_FLOW_CTL_MODE_BLOCK_BASED: hci_sched_acl_blk(hdev); break; } }

Contributors

PersonTokensPropCommitsCommitProp
Andrei Emeltchenko8198.78%266.67%
Marcel Holtmann11.22%133.33%
Total82100.00%3100.00%

/* Schedule SCO */
static void hci_sched_sco(struct hci_dev *hdev) { struct hci_conn *conn; struct sk_buff *skb; int quote; BT_DBG("%s", hdev->name); if (!hci_conn_num(hdev, SCO_LINK)) return; while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) { while (quote-- && (skb = skb_dequeue(&conn->data_q))) { BT_DBG("skb %p len %d", skb, skb->len); hci_send_frame(hdev, skb); conn->sent++; if (conn->sent == ~0) conn->sent = 0; } } }

Contributors

PersonTokensPropCommitsCommitProp
Maksim Krasnyanskiy6452.03%116.67%
Maxim Krasnyansky2419.51%116.67%
Linus Torvalds2217.89%233.33%
Luiz Augusto von Dentz118.94%116.67%
Marcel Holtmann21.63%116.67%
Total123100.00%6100.00%


static void hci_sched_esco(struct hci_dev *hdev) { struct hci_conn *conn; struct sk_buff *skb; int quote; BT_DBG("%s", hdev->name); if (!hci_conn_num(hdev, ESCO_LINK)) return; while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) { while (quote-- && (skb = skb_dequeue(&conn->data_q))) { BT_DBG("skb %p len %d", skb, skb->len); hci_send_frame(hdev, skb); conn->sent++; if (conn->sent == ~0) conn->sent = 0; } } }

Contributors

PersonTokensPropCommitsCommitProp
Marcel Holtmann11291.06%266.67%
Luiz Augusto von Dentz118.94%133.33%
Total123100.00%3100.00%


static void hci_sched_le(struct hci_dev *hdev) { struct hci_chan *chan; struct sk_buff *skb; int quote, cnt, tmp; BT_DBG("%s", hdev->name); if (!hci_conn_num(hdev, LE_LINK)) return; if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { /* LE tx timeout must be longer than maximum * link supervision timeout (40.9 seconds) */ if (!hdev->le_cnt && hdev->le_pkts && time_after(jiffies, hdev->le_last_tx + HZ * 45)) hci_link_tx_to(hdev, LE_LINK); } cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt; tmp = cnt; while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) { u32 priority = (skb_peek(&chan->data_q))->priority; while (quote-- && (skb = skb_peek(&chan->data_q))) { BT_DBG("chan %p skb %p len %d priority %u", chan, skb, skb->len, skb->priority); /* Stop if priority has changed */ if (skb->priority < priority) break; skb = skb_dequeue(&chan->data_q); hci_send_frame(hdev, skb); hdev->le_last_tx = jiffies; cnt--; chan->sent++; chan->conn->sent++; } } if (hdev->le_pkts) hdev->le_cnt = cnt; else hdev->acl_cnt = cnt; if (cnt != tmp) hci_prio_recalculate(hdev, LE_LINK); }

Contributors

PersonTokensPropCommitsCommitProp
Ville Tervo17165.52%225.00%
Luiz Augusto von Dentz8532.57%450.00%
Marcel Holtmann51.92%225.00%
Total261100.00%8100.00%


static void hci_tx_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work); struct sk_buff *skb; BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt, hdev->sco_cnt, hdev->le_cnt); if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { /* Schedule queues and send stuff to HCI driver */ hci_sched_acl(hdev); hci_sched_sco(hdev); hci_sched_esco(hdev); hci_sched_le(hdev); } /* Send next queued raw (unknown type) packet */ while ((skb = skb_dequeue(&hdev->raw_q))) hci_send_frame(hdev, skb); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg8882.24%233.33%
Maksim Krasnyanskiy98.41%116.67%
Gustavo Fernando Padovan65.61%116.67%
Marcel Holtmann32.80%116.67%
Linus Torvalds10.93%116.67%
Total107100.00%6100.00%

/* ----- HCI RX task (incoming data processing) ----- */ /* ACL data packet */
static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb) { struct hci_acl_hdr *hdr = (void *) skb->data; struct hci_conn *conn; __u16 handle, flags; skb_pull(skb, HCI_ACL_HDR_SIZE); handle = __le16_to_cpu(hdr->handle); flags = hci_flags(handle); handle = hci_handle(handle); BT_DBG("%s len %d handle 0x%4.4x flags 0x%4.4x", hdev->name, skb->len, handle, flags); hdev->stat.acl_rx++; hci_dev_lock(hdev); conn = hci_conn_hash_lookup_handle(hdev, handle); hci_dev_unlock(hdev); if (conn) { hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF); /* Send to upper protocol */ l2cap_recv_acldata(conn, skb, flags); return; } else { BT_ERR("%s ACL packet for unknown connection handle %d", hdev->name, handle); } kfree_skb(skb); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg15398.71%466.67%
Linus Torvalds10.65%116.67%
Maksim Krasnyanskiy10.65%116.67%
Total155100.00%6100.00%

/* SCO data packet */
static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb) { struct hci_sco_hdr *hdr = (void *) skb->data; struct hci_conn *conn; __u16 handle; skb_pull(skb, HCI_SCO_HDR_SIZE); handle = __le16_to_cpu(hdr->handle); BT_DBG("%s len %d handle 0x%4.4x", hdev->name, skb->len, handle); hdev->stat.sco_rx++; hci_dev_lock(hdev); conn = hci_conn_hash_lookup_handle(hdev, handle); hci_dev_unlock(hdev); if (conn) { /* Send to upper protocol */ sco_recv_scodata(conn, skb); return; } else { BT_ERR("%s SCO packet for unknown connection handle %d", hdev->name, handle); } kfree_skb(skb); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg7659.38%112.50%
Linus Torvalds3023.44%225.00%
Marcel Holtmann129.38%450.00%
Maksim Krasnyanskiy107.81%112.50%
Total128100.00%8100.00%


static bool hci_req_is_complete(struct hci_dev *hdev) { struct sk_buff *skb; skb = skb_peek(&hdev->cmd_q); if (!skb) return true; return (bt_cb(skb)->hci.req_flags & HCI_REQ_START); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg3675.00%337.50%
Maksim Krasnyanskiy510.42%112.50%
Marcel Holtmann48.33%225.00%
Linus Torvalds36.25%225.00%
Total48100.00%8100.00%


static void hci_resend_last(struct hci_dev *hdev) { struct hci_command_hdr *sent; struct sk_buff *skb; u16 opcode; if (!hdev->sent_cmd) return; sent = (void *) hdev->sent_cmd->data; opcode = __le16_to_cpu(sent->opcode); if (opcode == HCI_OP_RESET) return; skb = skb_clone(hdev->sent_cmd, GFP_KERNEL); if (!skb) return; skb_queue_head(&hdev->cmd_q, skb); queue_work(hdev->workqueue, &hdev->cmd_work); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg8383.84%240.00%
Linus Torvalds1313.13%240.00%
Marcel Holtmann33.03%120.00%
Total99100.00%5100.00%


void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, hci_req_complete_t *req_complete, hci_req_complete_skb_t *req_complete_skb) { struct sk_buff *skb; unsigned long flags; BT_DBG("opcode 0x%04x status 0x%02x", opcode, status); /* If the completed command doesn't match the last one that was * sent we need to do special handling of it. */ if (!hci_sent_cmd_data(hdev, opcode)) { /* Some CSR based controllers generate a spontaneous * reset complete event during init and any pending * command will never be completed. In such a case we * need to resend whatever was the last sent * command. */ if (test_bit(HCI_INIT, &hdev->flags) && opcode == HCI_OP_RESET) hci_resend_last(hdev); return; } /* If the command succeeded and there's still more commands in * this request the request is not yet complete. */ if (!status && !hci_req_is_complete(hdev)) return; /* If this was the last command in a request the complete * callback would be found in hdev->sent_cmd instead of the * command queue (hdev->cmd_q). */ if (bt_cb(hdev->sent_cmd)->hci.req_flags & HCI_REQ_SKB) { *req_complete_skb = bt_cb(hdev->sent_cmd)->hci.req_complete_skb; return; } if (bt_cb(hdev->sent_cmd)->hci.req_complete) { *req_complete = bt_cb(hdev->sent_cmd)->hci.req_complete; return; } /* Remove all pending commands belonging to this request */ spin_lock_irqsave(&hdev->cmd_q.lock, flags); while ((skb = __skb_dequeue(&hdev->cmd_q))) { if (bt_cb(skb)->hci.req_flags & HCI_REQ_START) { __skb_queue_head(&hdev->cmd_q, skb); break; } if (bt_cb(skb)->hci.req_flags & HCI_REQ_SKB) *req_complete_skb = bt_cb(skb)->hci.req_complete_skb; else *req_complete = bt_cb(skb)->hci.req_complete; kfree_skb(skb); } spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg15157.20%422.22%
Linus Torvalds6123.11%211.11%
Douglas Anderson186.82%15.56%
Marcel Holtmann166.06%633.33%
Maksim Krasnyanskiy124.55%15.56%
Andre Guedes31.14%15.56%
Andrei Emeltchenko20.76%211.11%
Szymon Janc10.38%15.56%
Total264100.00%18100.00%


static void hci_rx_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work); struct sk_buff *skb; BT_DBG("%s", hdev->name); while ((skb = skb_dequeue(&hdev->rx_q))) { /* Send copy to monitor */ hci_send_to_monitor(hdev, skb); if (atomic_read(&hdev->promisc)) { /* Send copy to the sockets */ hci_send_to_sock(hdev, skb); } if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) { kfree_skb(skb); continue; } if (test_bit(HCI_INIT, &hdev->flags)) { /* Don't process data packets in this states. */ switch (hci_skb_pkt_type(skb)) { case HCI_ACLDATA_PKT: case HCI_SCODATA_PKT: kfree_skb(skb); continue; } } /* Process frame */ switch (hci_skb_pkt_type(skb)) { case HCI_EVENT_PKT: BT_DBG("%s Event packet", hdev->name); hci_event_packet(hdev, skb); break; case HCI_ACLDATA_PKT: BT_DBG("%s ACL data packet", hdev->name); hci_acldata_packet(hdev, skb); break; case HCI_SCODATA_PKT: BT_DBG("%s SCO data packet", hdev->name); hci_scodata_packet(hdev, skb); break; default: kfree_skb(skb); break; } } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg13362.15%17.14%
Marcel Holtmann3415.89%428.57%
Linus Torvalds2511.68%214.29%
Andre Guedes104.67%17.14%
Andrei Emeltchenko52.34%214.29%
Szymon Janc31.40%17.14%
Ville Tervo20.93%17.14%
Maksim Krasnyanskiy10.47%17.14%
Gustavo Fernando Padovan10.47%17.14%
Total214100.00%14100.00%


static void hci_cmd_work(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_work); struct sk_buff *skb; BT_DBG("%s cmd_cnt %d cmd queued %d", hdev->name, atomic_read(&hdev->cmd_cnt), skb_queue_len(&hdev->cmd_q)); /* Send queued commands */ if (atomic_read(&hdev->cmd_cnt)) { skb = skb_dequeue(&hdev->cmd_q); if (!skb) return; kfree_skb(hdev->sent_cmd); hdev->sent_cmd = skb_clone(skb, GFP_KERNEL); if (hdev->sent_cmd) { atomic_dec(&hdev->cmd_cnt); hci_send_frame(hdev, skb); if (test_bit(HCI_RESET, &hdev->flags)) cancel_delayed_work(&hdev->cmd_timer); else schedule_delayed_work(&hdev->cmd_timer, HCI_CMD_TIMEOUT); } else { skb_queue_head(&hdev->cmd_q, skb); queue_work(hdev->workqueue, &hdev->cmd_work); } } }

Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg11864.84%125.00%
Andre Guedes5228.57%125.00%
Marcel Holtmann126.59%250.00%
Total182100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Johan Hedberg637234.49%13231.43%
Marcel Holtmann497026.90%15436.67%
Maksim Krasnyanskiy14637.92%71.67%
Linus Torvalds14597.90%30.71%
Luiz Augusto von Dentz7163.88%51.19%
Andrei Emeltchenko6983.78%235.48%
Florian Grandel5783.13%30.71%
Andre Guedes5543.00%266.19%
Vinicius Costa Gomes3311.79%61.43%
Ville Tervo2871.55%30.71%
Szymon Janc1780.96%30.71%
David Herrmann1650.89%61.43%
Gustavo Fernando Padovan1410.76%163.81%
Maxim Krasnyansky1110.60%10.24%
Loic Poulain1020.55%20.48%
Sasha Levin750.41%10.24%
Antti Julku350.19%20.48%
Tedd Ho-Jeong An230.12%10.24%
Jakub Pawlowski220.12%20.48%
Heiner Kallweit220.12%10.24%
Johan Hovold200.11%10.24%
Al Viro200.11%10.24%
Douglas Anderson180.10%10.24%
Lukasz Rymanowski110.06%10.24%
Kees Cook100.05%10.24%
Vishal Agarwal100.05%10.24%
Geliang Tang100.05%10.24%
Jaganath Kanakkassery100.05%10.24%
Gabriele Mazzotta100.05%10.24%
Arnaldo Carvalho de Melo100.05%20.48%
Randy Dunlap90.05%10.24%
Wei-Ning Huang80.04%10.24%
Jaikumar Ganesh70.04%10.24%
Jiri Slaby50.03%10.24%
Dave Young40.02%10.24%
Hideaki Yoshifuji / 吉藤英明30.02%20.48%
Mikel Astiz20.01%10.24%
Wesley Kuo20.01%10.24%
Joe Perches10.01%10.24%
Jorrit Schippers10.01%10.24%
Vegard Nossum10.01%10.24%
Total18474100.00%420100.00%
Directory: net/bluetooth
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.