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DivestOS/Patches/LineageOS-14.1/android_system_bt/378958.patch

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14.1: January ASB Picks Signed-off-by: Tavi <tavi@divested.dev>
2024-01-05 23:14:43 -05:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jakub Pawlowski <jpawlowski@google.com>
Date: Tue, 6 Dec 2016 15:40:58 -0800
Subject: [PATCH] Simplify btm_ble_resolve_random_addr
Bug: 30622771
Test: manual testing
Change-Id: I604d0e909a6fe270e2b413abbdb497d622780261
---
stack/btm/btm_ble.c | 119 ++++++++++++---------------------------
stack/btm/btm_ble_addr.c | 41 ++++++--------
stack/btm/btm_ble_gap.c | 66 ++++++----------------
stack/btm/btm_ble_int.h | 3 +-
4 files changed, 74 insertions(+), 155 deletions(-)
diff --git a/stack/btm/btm_ble.c b/stack/btm/btm_ble.c
index c6e699d49..69a497454 100644
--- a/stack/btm/btm_ble.c
+++ b/stack/btm/btm_ble.c
@@ -1800,69 +1800,6 @@ UINT8 btm_ble_br_keys_req(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_LE_IO_REQ *p_data)
return callback_rc;
}
-#if (BLE_PRIVACY_SPT == TRUE )
-/*******************************************************************************
-**
-** Function btm_ble_resolve_random_addr_on_conn_cmpl
-**
-** Description resolve random address complete on connection complete event.
-**
-** Returns void
-**
-*******************************************************************************/
-static void btm_ble_resolve_random_addr_on_conn_cmpl(void * p_rec, void *p_data)
-{
- UINT8 *p = (UINT8 *)p_data;
- tBTM_SEC_DEV_REC *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
- UINT8 role, bda_type;
- UINT16 handle;
- BD_ADDR bda;
- UINT16 conn_interval, conn_latency, conn_timeout;
- BOOLEAN match = FALSE;
-
- ++p;
- STREAM_TO_UINT16 (handle, p);
- STREAM_TO_UINT8 (role, p);
- STREAM_TO_UINT8 (bda_type, p);
- STREAM_TO_BDADDR (bda, p);
- STREAM_TO_UINT16 (conn_interval, p);
- STREAM_TO_UINT16 (conn_latency, p);
- STREAM_TO_UINT16 (conn_timeout, p);
-
- handle = HCID_GET_HANDLE (handle);
-
- BTM_TRACE_EVENT ("%s", __func__);
-
- if (match_rec)
- {
- LOG_INFO(LOG_TAG, "%s matched and resolved random address", __func__);
- match = TRUE;
- match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
- memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
- if (!btm_ble_init_pseudo_addr (match_rec, bda))
- {
- /* assign the original address to be the current report address */
- memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
- }
- else
- {
- memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
- }
- }
- else
- {
- LOG_INFO(LOG_TAG, "%s unable to match and resolve random address", __func__);
- }
-
- btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
-
- l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
- conn_latency, conn_timeout);
-
- return;
-}
-#endif
-
/*******************************************************************************
**
** Function btm_ble_connected
@@ -1946,7 +1883,7 @@ void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role,
void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced)
{
#if (BLE_PRIVACY_SPT == TRUE )
- UINT8 *p_data = p, peer_addr_type;
+ UINT8 peer_addr_type;
BD_ADDR local_rpa, peer_rpa;
#endif
UINT8 role, status, bda_type;
@@ -1974,35 +1911,53 @@ void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced)
STREAM_TO_BDADDR (peer_rpa, p);
}
+ STREAM_TO_UINT16(conn_interval, p);
+ STREAM_TO_UINT16(conn_latency, p);
+ STREAM_TO_UINT16(conn_timeout, p);
+ handle = HCID_GET_HANDLE(handle);
+
/* possiblly receive connection complete with resolvable random while
the device has been paired */
if (!match && BTM_BLE_IS_RESOLVE_BDA(bda))
{
- btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_on_conn_cmpl, p_data);
+ tBTM_SEC_DEV_REC* match_rec = btm_ble_resolve_random_addr(bda);
+ if (match_rec)
+ {
+ LOG_INFO(LOG_TAG, "%s matched and resolved random address", __func__);
+ match = true;
+ match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
+ memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
+ if (!btm_ble_init_pseudo_addr(match_rec, bda))
+ {
+ /* assign the original address to be the current report address */
+ memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
+ }
+ else
+ {
+ memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
+ }
+ }
+ else
+ {
+ LOG_INFO(LOG_TAG, "%s unable to match and resolve random address",
+ __func__);
+ }
}
- else
#endif
- {
- STREAM_TO_UINT16 (conn_interval, p);
- STREAM_TO_UINT16 (conn_latency, p);
- STREAM_TO_UINT16 (conn_timeout, p);
- handle = HCID_GET_HANDLE (handle);
+ btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
- btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
-
- l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
- conn_latency, conn_timeout);
+ l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
+ conn_latency, conn_timeout);
#if (BLE_PRIVACY_SPT == TRUE)
- if (enhanced)
- {
- btm_ble_refresh_local_resolvable_private_addr(bda, local_rpa);
+ if (enhanced)
+ {
+ btm_ble_refresh_local_resolvable_private_addr(bda, local_rpa);
- if (peer_addr_type & BLE_ADDR_TYPE_ID_BIT)
- btm_ble_refresh_peer_resolvable_private_addr(bda, peer_rpa, BLE_ADDR_RANDOM);
- }
-#endif
+ if (peer_addr_type & BLE_ADDR_TYPE_ID_BIT)
+ btm_ble_refresh_peer_resolvable_private_addr(bda, peer_rpa, BLE_ADDR_RANDOM);
}
+#endif
}
else
{
diff --git a/stack/btm/btm_ble_addr.c b/stack/btm/btm_ble_addr.c
index 81fff5349..b389aae5c 100644
--- a/stack/btm/btm_ble_addr.c
+++ b/stack/btm/btm_ble_addr.c
@@ -318,13 +318,13 @@ BOOLEAN btm_ble_addr_resolvable (BD_ADDR rpa, tBTM_SEC_DEV_REC *p_dev_rec)
static BOOLEAN btm_ble_match_random_bda(void *data, void *context)
{
#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
+ UINT8 *random_bda = (uint8_t*)context;
/* use the 3 MSB of bd address as prand */
- tBTM_LE_RANDOM_CB *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
UINT8 rand[3];
- rand[0] = p_mgnt_cb->random_bda[2];
- rand[1] = p_mgnt_cb->random_bda[1];
- rand[2] = p_mgnt_cb->random_bda[0];
+ rand[0] = random_bda[2];
+ rand[1] = random_bda[1];
+ rand[2] = random_bda[0];
BTM_TRACE_EVENT("%s next iteration", __func__);
@@ -356,28 +356,21 @@ static BOOLEAN btm_ble_match_random_bda(void *data, void *context)
** address is matched to.
**
*******************************************************************************/
-void btm_ble_resolve_random_addr(BD_ADDR random_bda, tBTM_BLE_RESOLVE_CBACK * p_cback, void *p)
+tBTM_SEC_DEV_REC* btm_ble_resolve_random_addr(BD_ADDR random_bda)
{
- tBTM_LE_RANDOM_CB *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
-
BTM_TRACE_EVENT("%s", __func__);
- if ( !p_mgnt_cb->busy) {
- p_mgnt_cb->p = p;
- p_mgnt_cb->busy = TRUE;
- memcpy(p_mgnt_cb->random_bda, random_bda, BD_ADDR_LEN);
- /* start to resolve random address */
- /* check for next security record */
-
- list_node_t * n = list_foreach(btm_cb.sec_dev_rec, btm_ble_match_random_bda, NULL);
- tBTM_SEC_DEV_REC *p_dev_rec = n ? list_node(n) : NULL;
-
- BTM_TRACE_EVENT("%s: %sresolved", __func__, (p_dev_rec == NULL ? "not " : ""));
- p_mgnt_cb->busy = FALSE;
-
- (*p_cback)(p_dev_rec, p);
- } else {
- (*p_cback)(NULL, p);
- }
+
+ /* start to resolve random address */
+ /* check for next security record */
+
+ list_node_t* n =
+ list_foreach(btm_cb.sec_dev_rec, btm_ble_match_random_bda, random_bda);
+ tBTM_SEC_DEV_REC* p_dev_rec = NULL;
+ if (n != NULL) p_dev_rec = (tBTM_SEC_DEV_REC*)list_node(n);
+
+ BTM_TRACE_EVENT("%s: %sresolved", __func__,
+ (p_dev_rec == NULL ? "not " : ""));
+ return p_dev_rec;
}
#endif
diff --git a/stack/btm/btm_ble_gap.c b/stack/btm/btm_ble_gap.c
index f8c06342f..fe8ee6d27 100644
--- a/stack/btm/btm_ble_gap.c
+++ b/stack/btm/btm_ble_gap.c
@@ -729,51 +729,6 @@ extern UINT8 BTM_BleMaxMultiAdvInstanceCount(void)
btm_cb.cmn_ble_vsc_cb.adv_inst_max : BTM_BLE_MULTI_ADV_MAX;
}
-#if BLE_PRIVACY_SPT == TRUE
-/*******************************************************************************
-**
-** Function btm_ble_resolve_random_addr_on_adv
-**
-** Description resolve random address complete callback.
-**
-** Returns void
-**
-*******************************************************************************/
-static void btm_ble_resolve_random_addr_on_adv(void * p_rec, void *p)
-{
- tBTM_SEC_DEV_REC *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
- UINT8 addr_type = BLE_ADDR_RANDOM;
- BD_ADDR bda;
- UINT8 *pp = (UINT8 *)p + 1;
- UINT8 evt_type;
-
- BTM_TRACE_EVENT ("btm_ble_resolve_random_addr_on_adv ");
-
- STREAM_TO_UINT8 (evt_type, pp);
- STREAM_TO_UINT8 (addr_type, pp);
- STREAM_TO_BDADDR (bda, pp);
-
- if (match_rec)
- {
- BTM_TRACE_DEBUG("Random match");
- match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
- memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
-
- if (btm_ble_init_pseudo_addr(match_rec, bda))
- {
- memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
- } else {
- // Assign the original address to be the current report address
- memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
- }
- }
-
- btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, pp);
-
- return;
-}
-#endif
-
/*******************************************************************************
**
** Function BTM_BleLocalPrivacyEnabled
@@ -2766,11 +2721,26 @@ void btm_ble_process_adv_pkt (UINT8 *p_data)
/* always do RRA resolution on host */
if (!match && BTM_BLE_IS_RESOLVE_BDA(bda))
{
- btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_on_adv, p_data);
+ tBTM_SEC_DEV_REC* match_rec = btm_ble_resolve_random_addr(bda);
+ if (match_rec)
+ {
+ BTM_TRACE_DEBUG("Random match");
+ match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
+ memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
+
+ if (btm_ble_init_pseudo_addr(match_rec, bda))
+ {
+ memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
+ }
+ else
+ {
+ // Assign the original address to be the current report address
+ memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
+ }
+ }
}
- else
#endif
- btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, p);
+ btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, p);
STREAM_TO_UINT8(data_len, p);
diff --git a/stack/btm/btm_ble_int.h b/stack/btm/btm_ble_int.h
index 437503e12..4bcf5a7e9 100644
--- a/stack/btm/btm_ble_int.h
+++ b/stack/btm/btm_ble_int.h
@@ -31,6 +31,7 @@
#include "hcidefs.h"
#include "btm_ble_api.h"
#include "btm_int.h"
+#include "btm_int_types.h"
#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
#include "smp_api.h"
@@ -132,7 +133,7 @@ extern void btm_ble_dequeue_direct_conn_req(BD_ADDR rem_bda);
/* BLE address management */
extern void btm_gen_resolvable_private_addr (void *p_cmd_cplt_cback);
extern void btm_gen_non_resolvable_private_addr (tBTM_BLE_ADDR_CBACK *p_cback, void *p);
-extern void btm_ble_resolve_random_addr(BD_ADDR random_bda, tBTM_BLE_RESOLVE_CBACK * p_cback, void *p);
+extern tBTM_SEC_DEV_REC* btm_ble_resolve_random_addr(BD_ADDR random_bda);
extern void btm_gen_resolve_paddr_low(tBTM_RAND_ENC *p);
/* privacy function */
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