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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <frameworks/proto_logging/stats/enums/bluetooth/enums.pb.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <stdlib.h>
#include <cstddef>
#include "stack/include/sdp_api.h"
#include "stack/sdp/sdpint.h"
#include "test/mock/mock_osi_allocator.h"
#include "test/mock/mock_stack_l2cap_api.h"
#ifndef BT_DEFAULT_BUFFER_SIZE
#define BT_DEFAULT_BUFFER_SIZE (4096 + 16)
#endif
static int L2CA_ConnectReq2_cid = 0x42;
static RawAddress addr = RawAddress({0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6});
static tSDP_DISCOVERY_DB* sdp_db = nullptr;
class StackSdpMainTest : public ::testing::Test {
protected:
void SetUp() override {
sdp_init();
test::mock::stack_l2cap_api::L2CA_ConnectReq2.body =
[](uint16_t psm, const RawAddress& p_bd_addr, uint16_t sec_level) {
return ++L2CA_ConnectReq2_cid;
};
test::mock::stack_l2cap_api::L2CA_DataWrite.body = [](uint16_t cid,
BT_HDR* p_data) {
osi_free_and_reset((void**)&p_data);
return 0;
};
test::mock::stack_l2cap_api::L2CA_DisconnectReq.body = [](uint16_t cid) {
return true;
};
test::mock::stack_l2cap_api::L2CA_Register2.body =
[](uint16_t psm, const tL2CAP_APPL_INFO& p_cb_info, bool enable_snoop,
tL2CAP_ERTM_INFO* p_ertm_info, uint16_t my_mtu,
uint16_t required_remote_mtu, uint16_t sec_level) {
return 42; // return non zero
};
test::mock::osi_allocator::osi_malloc.body = [](size_t size) {
return malloc(size);
};
test::mock::osi_allocator::osi_free.body = [](void* ptr) { free(ptr); };
test::mock::osi_allocator::osi_free_and_reset.body = [](void** ptr) {
free(*ptr);
*ptr = nullptr;
};
sdp_db = (tSDP_DISCOVERY_DB*)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
}
void TearDown() override {
osi_free(sdp_db);
test::mock::stack_l2cap_api::L2CA_ConnectReq2 = {};
test::mock::stack_l2cap_api::L2CA_Register2 = {};
test::mock::stack_l2cap_api::L2CA_DataWrite = {};
test::mock::stack_l2cap_api::L2CA_DisconnectReq = {};
test::mock::osi_allocator::osi_malloc = {};
test::mock::osi_allocator::osi_free = {};
test::mock::osi_allocator::osi_free_and_reset = {};
}
};
TEST_F(StackSdpMainTest, sdp_service_search_request) {
ASSERT_TRUE(SDP_ServiceSearchRequest(addr, sdp_db, nullptr));
int cid = L2CA_ConnectReq2_cid;
tCONN_CB* p_ccb = sdpu_find_ccb_by_cid(cid);
ASSERT_NE(p_ccb, nullptr);
ASSERT_EQ(p_ccb->con_state, SDP_STATE_CONN_SETUP);
tL2CAP_CFG_INFO cfg;
sdp_cb.reg_info.pL2CA_ConfigCfm_Cb(p_ccb->connection_id, 0, &cfg);
ASSERT_EQ(p_ccb->con_state, SDP_STATE_CONNECTED);
sdp_disconnect(p_ccb, SDP_SUCCESS);
sdp_cb.reg_info.pL2CA_DisconnectCfm_Cb(p_ccb->connection_id, 0);
ASSERT_EQ(p_ccb->con_state, SDP_STATE_IDLE);
}
tCONN_CB* find_ccb(uint16_t cid, uint8_t state) {
uint16_t xx;
tCONN_CB* p_ccb;
// Look through each connection control block
for (xx = 0, p_ccb = sdp_cb.ccb; xx < SDP_MAX_CONNECTIONS; xx++, p_ccb++) {
if ((p_ccb->con_state == state) && (p_ccb->connection_id == cid)) {
return p_ccb;
}
}
return nullptr; // not found
}
TEST_F(StackSdpMainTest, sdp_service_search_request_queuing) {
ASSERT_TRUE(SDP_ServiceSearchRequest(addr, sdp_db, nullptr));
const int cid = L2CA_ConnectReq2_cid;
tCONN_CB* p_ccb1 = find_ccb(cid, SDP_STATE_CONN_SETUP);
ASSERT_NE(p_ccb1, nullptr);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_CONN_SETUP);
ASSERT_TRUE(SDP_ServiceSearchRequest(addr, sdp_db, nullptr));
tCONN_CB* p_ccb2 = find_ccb(cid, SDP_STATE_CONN_PEND);
ASSERT_NE(p_ccb2, nullptr);
ASSERT_NE(p_ccb2, p_ccb1);
ASSERT_EQ(p_ccb2->con_state, SDP_STATE_CONN_PEND);
tL2CAP_CFG_INFO cfg;
sdp_cb.reg_info.pL2CA_ConfigCfm_Cb(p_ccb1->connection_id, 0, &cfg);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_CONNECTED);
ASSERT_EQ(p_ccb2->con_state, SDP_STATE_CONN_PEND);
p_ccb1->disconnect_reason = SDP_SUCCESS;
sdp_disconnect(p_ccb1, SDP_SUCCESS);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_IDLE);
ASSERT_EQ(p_ccb2->con_state, SDP_STATE_CONNECTED);
sdp_disconnect(p_ccb2, SDP_SUCCESS);
sdp_cb.reg_info.pL2CA_DisconnectCfm_Cb(p_ccb2->connection_id, 0);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_IDLE);
ASSERT_EQ(p_ccb2->con_state, SDP_STATE_IDLE);
}
void sdp_callback(tSDP_RESULT result) {
if (result == SDP_SUCCESS) {
ASSERT_TRUE(SDP_ServiceSearchRequest(addr, sdp_db, nullptr));
}
}
TEST_F(StackSdpMainTest, sdp_service_search_request_queuing_race_condition) {
// start first request
ASSERT_TRUE(SDP_ServiceSearchRequest(addr, sdp_db, sdp_callback));
const int cid1 = L2CA_ConnectReq2_cid;
tCONN_CB* p_ccb1 = find_ccb(cid1, SDP_STATE_CONN_SETUP);
ASSERT_NE(p_ccb1, nullptr);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_CONN_SETUP);
tL2CAP_CFG_INFO cfg;
sdp_cb.reg_info.pL2CA_ConfigCfm_Cb(p_ccb1->connection_id, 0, &cfg);
ASSERT_EQ(p_ccb1->con_state, SDP_STATE_CONNECTED);
sdp_disconnect(p_ccb1, SDP_SUCCESS);
sdp_cb.reg_info.pL2CA_DisconnectCfm_Cb(p_ccb1->connection_id, 0);
const int cid2 = L2CA_ConnectReq2_cid;
ASSERT_NE(cid1, cid2); // The callback a queued a new request
tCONN_CB* p_ccb2 = find_ccb(cid2, SDP_STATE_CONN_SETUP);
ASSERT_NE(p_ccb2, nullptr);
// If race condition, this will be stuck in PEND
ASSERT_EQ(p_ccb2->con_state, SDP_STATE_CONN_SETUP);
sdp_disconnect(p_ccb2, SDP_SUCCESS);
}
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