bluetooth pull request for net:

- Fix MGMT add advmon with RSSI command
  - L2CAP: Fix responding with wrong PDU type
  - Fix race condition in hci_cmd_sync_clear
  - ISO: Fix timestamped HCI ISO data packet parsing
  - HCI: Fix global-out-of-bounds
  - hci_sync: Resume adv with no RPA when active scan
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Merge tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix MGMT add advmon with RSSI command
 - L2CAP: Fix responding with wrong PDU type
 - Fix race condition in hci_cmd_sync_clear
 - ISO: Fix timestamped HCI ISO data packet parsing
 - HCI: Fix global-out-of-bounds
 - hci_sync: Resume adv with no RPA when active scan

* tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: HCI: Fix global-out-of-bounds
  Bluetooth: mgmt: Fix MGMT add advmon with RSSI command
  Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work
  Bluetooth: L2CAP: Fix responding with wrong PDU type
  Bluetooth: btqcomsmd: Fix command timeout after setting BD address
  Bluetooth: btinel: Check ACPI handle for NULL before accessing
  Bluetooth: Remove "Power-on" check from Mesh feature
  Bluetooth: Fix race condition in hci_cmd_sync_clear
  Bluetooth: btintel: Iterate only bluetooth device ACPI entries
  Bluetooth: ISO: fix timestamped HCI ISO data packet parsing
  Bluetooth: btusb: Remove detection of ISO packets over bulk
  Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet
  Bluetooth: hci_sync: Resume adv with no RPA when active scan
====================

Link: https://lore.kernel.org/r/20230323202335.3380841-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2023-03-23 15:56:20 -07:00
commit 2e63a2dfe7
11 changed files with 214 additions and 115 deletions

View File

@ -26,7 +26,14 @@
#define ECDSA_HEADER_LEN 320
#define BTINTEL_PPAG_NAME "PPAG"
#define BTINTEL_PPAG_PREFIX "\\_SB_.PCI0.XHCI.RHUB"
/* structure to store the PPAG data read from ACPI table */
struct btintel_ppag {
u32 domain;
u32 mode;
acpi_status status;
struct hci_dev *hdev;
};
#define CMD_WRITE_BOOT_PARAMS 0xfc0e
struct cmd_write_boot_params {
@ -1295,17 +1302,16 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
if (ACPI_FAILURE(status)) {
bt_dev_warn(hdev, "ACPI Failure: %s", acpi_format_exception(status));
bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
return status;
}
if (strncmp(BTINTEL_PPAG_PREFIX, string.pointer,
strlen(BTINTEL_PPAG_PREFIX))) {
len = strlen(string.pointer);
if (len < strlen(BTINTEL_PPAG_NAME)) {
kfree(string.pointer);
return AE_OK;
}
len = strlen(string.pointer);
if (strncmp((char *)string.pointer + len - 4, BTINTEL_PPAG_NAME, 4)) {
kfree(string.pointer);
return AE_OK;
@ -1314,7 +1320,8 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
bt_dev_warn(hdev, "ACPI Failure: %s", acpi_format_exception(status));
ppag->status = status;
bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
return status;
}
@ -1323,8 +1330,9 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 2) {
kfree(buffer.pointer);
bt_dev_warn(hdev, "Invalid object type: %d or package count: %d",
bt_dev_warn(hdev, "PPAG-BT: Invalid object type: %d or package count: %d",
p->type, p->package.count);
ppag->status = AE_ERROR;
return AE_ERROR;
}
@ -1335,6 +1343,7 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
ppag->domain = (u32)p->package.elements[0].integer.value;
ppag->mode = (u32)p->package.elements[1].integer.value;
ppag->status = AE_OK;
kfree(buffer.pointer);
return AE_CTRL_TERMINATE;
}
@ -2314,12 +2323,12 @@ error:
static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver)
{
acpi_status status;
struct btintel_ppag ppag;
struct sk_buff *skb;
struct btintel_loc_aware_reg ppag_cmd;
acpi_handle handle;
/* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
/* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
switch (ver->cnvr_top & 0xFFF) {
case 0x504: /* Hrp2 */
case 0x202: /* Jfp2 */
@ -2327,29 +2336,35 @@ static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver
return;
}
handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
if (!handle) {
bt_dev_info(hdev, "No support for BT device in ACPI firmware");
return;
}
memset(&ppag, 0, sizeof(ppag));
ppag.hdev = hdev;
status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, NULL,
btintel_ppag_callback, &ppag, NULL);
ppag.status = AE_NOT_FOUND;
acpi_walk_namespace(ACPI_TYPE_PACKAGE, handle, 1, NULL,
btintel_ppag_callback, &ppag, NULL);
if (ACPI_FAILURE(status)) {
/* Do not log warning message if ACPI entry is not found */
if (status == AE_NOT_FOUND)
if (ACPI_FAILURE(ppag.status)) {
if (ppag.status == AE_NOT_FOUND) {
bt_dev_dbg(hdev, "PPAG-BT: ACPI entry not found");
return;
bt_dev_warn(hdev, "PPAG: ACPI Failure: %s", acpi_format_exception(status));
}
return;
}
if (ppag.domain != 0x12) {
bt_dev_warn(hdev, "PPAG-BT Domain disabled");
bt_dev_warn(hdev, "PPAG-BT: domain is not bluetooth");
return;
}
/* PPAG mode, BIT0 = 0 Disabled, BIT0 = 1 Enabled */
if (!(ppag.mode & BIT(0))) {
bt_dev_dbg(hdev, "PPAG disabled");
bt_dev_dbg(hdev, "PPAG-BT: disabled");
return;
}

View File

@ -137,13 +137,6 @@ struct intel_offload_use_cases {
__u8 preset[8];
} __packed;
/* structure to store the PPAG data read from ACPI table */
struct btintel_ppag {
u32 domain;
u32 mode;
struct hci_dev *hdev;
};
struct btintel_loc_aware_reg {
__le32 mcc;
__le32 sel;

View File

@ -122,6 +122,21 @@ static int btqcomsmd_setup(struct hci_dev *hdev)
return 0;
}
static int btqcomsmd_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
int ret;
ret = qca_set_bdaddr_rome(hdev, bdaddr);
if (ret)
return ret;
/* The firmware stops responding for a while after setting the bdaddr,
* causing timeouts for subsequent commands. Sleep a bit to avoid this.
*/
usleep_range(1000, 10000);
return 0;
}
static int btqcomsmd_probe(struct platform_device *pdev)
{
struct btqcomsmd *btq;
@ -162,7 +177,7 @@ static int btqcomsmd_probe(struct platform_device *pdev)
hdev->close = btqcomsmd_close;
hdev->send = btqcomsmd_send;
hdev->setup = btqcomsmd_setup;
hdev->set_bdaddr = qca_set_bdaddr_rome;
hdev->set_bdaddr = btqcomsmd_set_bdaddr;
ret = hci_register_dev(hdev);
if (ret < 0)

View File

@ -354,6 +354,7 @@ static void btsdio_remove(struct sdio_func *func)
BT_DBG("func %p", func);
cancel_work_sync(&data->work);
if (!data)
return;

View File

@ -1050,21 +1050,11 @@ static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
hci_skb_expect(skb) -= len;
if (skb->len == HCI_ACL_HDR_SIZE) {
__u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
__le16 dlen = hci_acl_hdr(skb)->dlen;
__u8 type;
/* Complete ACL header */
hci_skb_expect(skb) = __le16_to_cpu(dlen);
/* Detect if ISO packet has been sent over bulk */
if (hci_conn_num(data->hdev, ISO_LINK)) {
type = hci_conn_lookup_type(data->hdev,
hci_handle(handle));
if (type == ISO_LINK)
hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
}
if (skb_tailroom(skb) < hci_skb_expect(skb)) {
kfree_skb(skb);
skb = NULL;

View File

@ -1613,6 +1613,7 @@ void hci_conn_add_sysfs(struct hci_conn *conn);
void hci_conn_del_sysfs(struct hci_conn *conn);
#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
#define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
/* ----- LMP capabilities ----- */
#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)

View File

@ -2871,10 +2871,25 @@ int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *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 &&
hci_skb_pkt_type(skb) != HCI_ISODATA_PKT) {
switch (hci_skb_pkt_type(skb)) {
case HCI_EVENT_PKT:
break;
case HCI_ACLDATA_PKT:
/* Detect if ISO packet has been sent as ACL */
if (hci_conn_num(hdev, ISO_LINK)) {
__u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
__u8 type;
type = hci_conn_lookup_type(hdev, hci_handle(handle));
if (type == ISO_LINK)
hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
}
break;
case HCI_SCODATA_PKT:
break;
case HCI_ISODATA_PKT:
break;
default:
kfree_skb(skb);
return -EINVAL;
}

View File

@ -643,6 +643,7 @@ void hci_cmd_sync_clear(struct hci_dev *hdev)
cancel_work_sync(&hdev->cmd_sync_work);
cancel_work_sync(&hdev->reenable_adv_work);
mutex_lock(&hdev->cmd_sync_work_lock);
list_for_each_entry_safe(entry, tmp, &hdev->cmd_sync_work_list, list) {
if (entry->destroy)
entry->destroy(hdev, entry->data, -ECANCELED);
@ -650,6 +651,7 @@ void hci_cmd_sync_clear(struct hci_dev *hdev)
list_del(&entry->list);
kfree(entry);
}
mutex_unlock(&hdev->cmd_sync_work_lock);
}
void __hci_cmd_sync_cancel(struct hci_dev *hdev, int err)
@ -2367,6 +2369,45 @@ static int hci_resume_advertising_sync(struct hci_dev *hdev)
return err;
}
static int hci_pause_addr_resolution(struct hci_dev *hdev)
{
int err;
if (!use_ll_privacy(hdev))
return 0;
if (!hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
return 0;
/* Cannot disable addr resolution if scanning is enabled or
* when initiating an LE connection.
*/
if (hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
hci_lookup_le_connect(hdev)) {
bt_dev_err(hdev, "Command not allowed when scan/LE connect");
return -EPERM;
}
/* Cannot disable addr resolution if advertising is enabled. */
err = hci_pause_advertising_sync(hdev);
if (err) {
bt_dev_err(hdev, "Pause advertising failed: %d", err);
return err;
}
err = hci_le_set_addr_resolution_enable_sync(hdev, 0x00);
if (err)
bt_dev_err(hdev, "Unable to disable Address Resolution: %d",
err);
/* Return if address resolution is disabled and RPA is not used. */
if (!err && scan_use_rpa(hdev))
return err;
hci_resume_advertising_sync(hdev);
return err;
}
struct sk_buff *hci_read_local_oob_data_sync(struct hci_dev *hdev,
bool extended, struct sock *sk)
{
@ -2402,7 +2443,7 @@ static u8 hci_update_accept_list_sync(struct hci_dev *hdev)
u8 filter_policy;
int err;
/* Pause advertising if resolving list can be used as controllers are
/* Pause advertising if resolving list can be used as controllers
* cannot accept resolving list modifications while advertising.
*/
if (use_ll_privacy(hdev)) {
@ -3319,6 +3360,7 @@ static const struct hci_init_stage amp_init1[] = {
HCI_INIT(hci_read_flow_control_mode_sync),
/* HCI_OP_READ_LOCATION_DATA */
HCI_INIT(hci_read_location_data_sync),
{}
};
static int hci_init1_sync(struct hci_dev *hdev)
@ -3353,6 +3395,7 @@ static int hci_init1_sync(struct hci_dev *hdev)
static const struct hci_init_stage amp_init2[] = {
/* HCI_OP_READ_LOCAL_FEATURES */
HCI_INIT(hci_read_local_features_sync),
{}
};
/* Read Buffer Size (ACL mtu, max pkt, etc.) */
@ -5394,27 +5437,12 @@ static int hci_active_scan_sync(struct hci_dev *hdev, uint16_t interval)
cancel_interleave_scan(hdev);
/* Pause advertising since active scanning disables address resolution
* which advertising depend on in order to generate its RPAs.
/* Pause address resolution for active scan and stop advertising if
* privacy is enabled.
*/
if (use_ll_privacy(hdev) && hci_dev_test_flag(hdev, HCI_PRIVACY)) {
err = hci_pause_advertising_sync(hdev);
if (err) {
bt_dev_err(hdev, "pause advertising failed: %d", err);
goto failed;
}
}
/* Disable address resolution while doing active scanning since the
* accept list shall not be used and all reports shall reach the host
* anyway.
*/
err = hci_le_set_addr_resolution_enable_sync(hdev, 0x00);
if (err) {
bt_dev_err(hdev, "Unable to disable Address Resolution: %d",
err);
err = hci_pause_addr_resolution(hdev);
if (err)
goto failed;
}
/* All active scans will be done with either a resolvable private
* address (when privacy feature has been enabled) or non-resolvable

View File

@ -1620,7 +1620,6 @@ static void iso_disconn_cfm(struct hci_conn *hcon, __u8 reason)
void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
{
struct iso_conn *conn = hcon->iso_data;
struct hci_iso_data_hdr *hdr;
__u16 pb, ts, len;
if (!conn)
@ -1642,6 +1641,8 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
}
if (ts) {
struct hci_iso_ts_data_hdr *hdr;
/* TODO: add timestamp to the packet? */
hdr = skb_pull_data(skb, HCI_ISO_TS_DATA_HDR_SIZE);
if (!hdr) {
@ -1649,15 +1650,19 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
goto drop;
}
len = __le16_to_cpu(hdr->slen);
} else {
struct hci_iso_data_hdr *hdr;
hdr = skb_pull_data(skb, HCI_ISO_DATA_HDR_SIZE);
if (!hdr) {
BT_ERR("Frame is too short (len %d)", skb->len);
goto drop;
}
len = __le16_to_cpu(hdr->slen);
}
len = __le16_to_cpu(hdr->slen);
flags = hci_iso_data_flags(len);
len = hci_iso_data_len(len);

View File

@ -708,6 +708,17 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
}
EXPORT_SYMBOL_GPL(l2cap_chan_del);
static void __l2cap_chan_list_id(struct l2cap_conn *conn, u16 id,
l2cap_chan_func_t func, void *data)
{
struct l2cap_chan *chan, *l;
list_for_each_entry_safe(chan, l, &conn->chan_l, list) {
if (chan->ident == id)
func(chan, data);
}
}
static void __l2cap_chan_list(struct l2cap_conn *conn, l2cap_chan_func_t func,
void *data)
{
@ -775,23 +786,9 @@ static void l2cap_chan_le_connect_reject(struct l2cap_chan *chan)
static void l2cap_chan_ecred_connect_reject(struct l2cap_chan *chan)
{
struct l2cap_conn *conn = chan->conn;
struct l2cap_ecred_conn_rsp rsp;
u16 result;
if (test_bit(FLAG_DEFER_SETUP, &chan->flags))
result = L2CAP_CR_LE_AUTHORIZATION;
else
result = L2CAP_CR_LE_BAD_PSM;
l2cap_state_change(chan, BT_DISCONN);
memset(&rsp, 0, sizeof(rsp));
rsp.result = cpu_to_le16(result);
l2cap_send_cmd(conn, chan->ident, L2CAP_LE_CONN_RSP, sizeof(rsp),
&rsp);
__l2cap_ecred_conn_rsp_defer(chan);
}
static void l2cap_chan_connect_reject(struct l2cap_chan *chan)
@ -846,7 +843,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
break;
case L2CAP_MODE_EXT_FLOWCTL:
l2cap_chan_ecred_connect_reject(chan);
break;
return;
}
}
}
@ -3938,43 +3935,86 @@ void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan)
&rsp);
}
void __l2cap_ecred_conn_rsp_defer(struct l2cap_chan *chan)
static void l2cap_ecred_list_defer(struct l2cap_chan *chan, void *data)
{
struct {
struct l2cap_ecred_conn_rsp rsp;
__le16 dcid[5];
} __packed pdu;
struct l2cap_conn *conn = chan->conn;
u16 ident = chan->ident;
int i = 0;
int *result = data;
if (!ident)
if (*result || test_bit(FLAG_ECRED_CONN_REQ_SENT, &chan->flags))
return;
BT_DBG("chan %p ident %d", chan, ident);
pdu.rsp.mtu = cpu_to_le16(chan->imtu);
pdu.rsp.mps = cpu_to_le16(chan->mps);
pdu.rsp.credits = cpu_to_le16(chan->rx_credits);
pdu.rsp.result = cpu_to_le16(L2CAP_CR_LE_SUCCESS);
mutex_lock(&conn->chan_lock);
list_for_each_entry(chan, &conn->chan_l, list) {
if (chan->ident != ident)
continue;
/* Reset ident so only one response is sent */
chan->ident = 0;
/* Include all channels pending with the same ident */
pdu.dcid[i++] = cpu_to_le16(chan->scid);
switch (chan->state) {
case BT_CONNECT2:
/* If channel still pending accept add to result */
(*result)++;
return;
case BT_CONNECTED:
return;
default:
/* If not connected or pending accept it has been refused */
*result = -ECONNREFUSED;
return;
}
}
mutex_unlock(&conn->chan_lock);
struct l2cap_ecred_rsp_data {
struct {
struct l2cap_ecred_conn_rsp rsp;
__le16 scid[L2CAP_ECRED_MAX_CID];
} __packed pdu;
int count;
};
l2cap_send_cmd(conn, ident, L2CAP_ECRED_CONN_RSP,
sizeof(pdu.rsp) + i * sizeof(__le16), &pdu);
static void l2cap_ecred_rsp_defer(struct l2cap_chan *chan, void *data)
{
struct l2cap_ecred_rsp_data *rsp = data;
if (test_bit(FLAG_ECRED_CONN_REQ_SENT, &chan->flags))
return;
/* Reset ident so only one response is sent */
chan->ident = 0;
/* Include all channels pending with the same ident */
if (!rsp->pdu.rsp.result)
rsp->pdu.rsp.dcid[rsp->count++] = cpu_to_le16(chan->scid);
else
l2cap_chan_del(chan, ECONNRESET);
}
void __l2cap_ecred_conn_rsp_defer(struct l2cap_chan *chan)
{
struct l2cap_conn *conn = chan->conn;
struct l2cap_ecred_rsp_data data;
u16 id = chan->ident;
int result = 0;
if (!id)
return;
BT_DBG("chan %p id %d", chan, id);
memset(&data, 0, sizeof(data));
data.pdu.rsp.mtu = cpu_to_le16(chan->imtu);
data.pdu.rsp.mps = cpu_to_le16(chan->mps);
data.pdu.rsp.credits = cpu_to_le16(chan->rx_credits);
data.pdu.rsp.result = cpu_to_le16(L2CAP_CR_LE_SUCCESS);
/* Verify that all channels are ready */
__l2cap_chan_list_id(conn, id, l2cap_ecred_list_defer, &result);
if (result > 0)
return;
if (result < 0)
data.pdu.rsp.result = cpu_to_le16(L2CAP_CR_LE_AUTHORIZATION);
/* Build response */
__l2cap_chan_list_id(conn, id, l2cap_ecred_rsp_defer, &data);
l2cap_send_cmd(conn, id, L2CAP_ECRED_CONN_RSP,
sizeof(data.pdu.rsp) + (data.count * sizeof(__le16)),
&data.pdu);
}
void __l2cap_connect_rsp_defer(struct l2cap_chan *chan)
@ -6078,6 +6118,7 @@ static inline int l2cap_ecred_conn_req(struct l2cap_conn *conn,
__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
chan->ident = cmd->ident;
chan->mode = L2CAP_MODE_EXT_FLOWCTL;
if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
l2cap_state_change(chan, BT_CONNECT2);

View File

@ -4639,12 +4639,6 @@ static int set_mgmt_mesh_func(struct sock *sk, struct hci_dev *hdev,
MGMT_OP_SET_EXP_FEATURE,
MGMT_STATUS_INVALID_INDEX);
/* Changes can only be made when controller is powered down */
if (hdev_is_powered(hdev))
return mgmt_cmd_status(sk, hdev->id,
MGMT_OP_SET_EXP_FEATURE,
MGMT_STATUS_REJECTED);
/* Parameters are limited to a single octet */
if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
return mgmt_cmd_status(sk, hdev->id,
@ -9363,7 +9357,8 @@ static const struct hci_mgmt_handler mgmt_handlers[] = {
{ add_ext_adv_data, MGMT_ADD_EXT_ADV_DATA_SIZE,
HCI_MGMT_VAR_LEN },
{ add_adv_patterns_monitor_rssi,
MGMT_ADD_ADV_PATTERNS_MONITOR_RSSI_SIZE },
MGMT_ADD_ADV_PATTERNS_MONITOR_RSSI_SIZE,
HCI_MGMT_VAR_LEN },
{ set_mesh, MGMT_SET_MESH_RECEIVER_SIZE,
HCI_MGMT_VAR_LEN },
{ mesh_features, MGMT_MESH_READ_FEATURES_SIZE },