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srsLTE
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Added mutex to RLC and PDCP eNodeB

This commit is contained in:
Ismael Gomez 2018-06-11 20:15:46 +02:00
parent d7f6820d12
commit cde432fbb6
4 changed files with 66 additions and 14 deletions
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6
srsenb/hdr/upper/pdcp.h
View File

@ -41,6 +41,7 @@ class pdcp : public pdcp_interface_rlc,
public:
void init(rlc_interface_pdcp *rlc_, rrc_interface_pdcp *rrc_, gtpu_interface_pdcp *gtpu_, srslte::log *pdcp_log_);
~pdcp();
void stop();
// pdcp_interface_rlc
@ -103,7 +104,10 @@ private:
user_interface_gtpu gtpu_itf;
user_interface_rrc rrc_itf;
srslte::pdcp *pdcp;
};
};
// Mutex to protect access to users std::map
pthread_mutex_t mutex;
std::map<uint32_t,user_interface> users;

11
srsenb/hdr/upper/rlc.h
View File

@ -49,6 +49,7 @@ public:
void init(pdcp_interface_rlc *pdcp_, rrc_interface_rlc *rrc_, mac_interface_rlc *mac_,
srslte::mac_interface_timers *mac_timers_, srslte::log *log_h);
~rlc();
void stop();
// rlc_interface_rrc
@ -91,11 +92,13 @@ private:
srsenb::rrc_interface_rlc *rrc;
srslte::rlc *rlc;
srsenb::rlc *parent;
};
};
// Mutex to protect access to users std::map
pthread_mutex_t mutex;
std::map<uint32_t,user_interface> users;
std::vector<mch_service_t> mch_services;
mac_interface_rlc *mac;
pdcp_interface_rlc *pdcp;
rrc_interface_rlc *rrc;

21
srsenb/src/upper/pdcp.cc
View File

@ -37,6 +37,11 @@ void pdcp::init(rlc_interface_pdcp* rlc_, rrc_interface_pdcp* rrc_, gtpu_interfa
log_h = pdcp_log_;
pool = srslte::byte_buffer_pool::get_instance();
pthread_mutex_init(&mutex, NULL);
}
pdcp::~pdcp() {
pthread_mutex_destroy(&mutex);
}
void pdcp::stop()
@ -44,11 +49,14 @@ void pdcp::stop()
for(std::map<uint32_t, user_interface>::iterator iter=users.begin(); iter!=users.end(); ++iter) {
rem_user((uint32_t) iter->first);
}
pthread_mutex_lock(&mutex);
users.clear();
pthread_mutex_unlock(&mutex);
}
void pdcp::add_user(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti) == 0) {
srslte::pdcp *obj = new srslte::pdcp;
obj->init(&users[rnti].rlc_itf, &users[rnti].rrc_itf, &users[rnti].gtpu_itf, log_h, RB_ID_SRB0, SECURITY_DIRECTION_DOWNLINK);
@ -61,20 +69,24 @@ void pdcp::add_user(uint16_t rnti)
users[rnti].gtpu_itf.gtpu = gtpu;
users[rnti].pdcp = obj;
}
pthread_mutex_unlock(&mutex);
}
void pdcp::rem_user(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].pdcp->stop();
delete users[rnti].pdcp;
users[rnti].pdcp = NULL;
users.erase(rnti);
}
pthread_mutex_unlock(&mutex);
}
void pdcp::add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_pdcp_config_t cfg)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
if(rnti != SRSLTE_MRNTI){
users[rnti].pdcp->add_bearer(lcid, cfg);
@ -82,37 +94,45 @@ void pdcp::add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_pdcp_config_t
users[rnti].pdcp->add_bearer_mrb(lcid, cfg);
}
}
pthread_mutex_unlock(&mutex);
}
void pdcp::reset(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].pdcp->reset();
}
pthread_mutex_unlock(&mutex);
}
void pdcp::config_security(uint16_t rnti, uint32_t lcid, uint8_t* k_rrc_enc_, uint8_t* k_rrc_int_,
srslte::CIPHERING_ALGORITHM_ID_ENUM cipher_algo_,
srslte::INTEGRITY_ALGORITHM_ID_ENUM integ_algo_)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].pdcp->config_security(lcid, k_rrc_enc_, k_rrc_int_, cipher_algo_, integ_algo_);
users[rnti].pdcp->enable_integrity(lcid);
users[rnti].pdcp->enable_encryption(lcid);
}
pthread_mutex_unlock(&mutex);
}
void pdcp::write_pdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* sdu)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].pdcp->write_pdu(lcid, sdu);
} else {
pool->deallocate(sdu);
}
pthread_mutex_unlock(&mutex);
}
void pdcp::write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* sdu)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
if(rnti != SRSLTE_MRNTI){
users[rnti].pdcp->write_sdu(lcid, sdu);
@ -122,6 +142,7 @@ void pdcp::write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* sdu)
} else {
pool->deallocate(sdu);
}
pthread_mutex_unlock(&mutex);
}
void pdcp::user_interface_gtpu::write_pdu(uint32_t lcid, srslte::byte_buffer_t *pdu)

42
srsenb/src/upper/rlc.cc
View File

@ -40,6 +40,11 @@ void rlc::init(pdcp_interface_rlc* pdcp_, rrc_interface_rlc* rrc_, mac_interface
pool = srslte::byte_buffer_pool::get_instance();
pthread_mutex_init(&mutex, NULL);
}
rlc::~rlc() {
pthread_mutex_destroy(&mutex);
}
void rlc::stop()
@ -47,12 +52,15 @@ void rlc::stop()
for(std::map<uint32_t, user_interface>::iterator iter=users.begin(); iter!=users.end(); ++iter) {
rem_user((uint32_t) iter->first);
}
pthread_mutex_lock(&mutex);
users.clear();
pthread_mutex_unlock(&mutex);
}
void rlc::add_user(uint16_t rnti)
{
if (users.count(rnti) == 0) {
pthread_mutex_lock(&mutex);
if (users.count(rnti) == 0) {
srslte::rlc *obj = new srslte::rlc;
obj->init(&users[rnti], &users[rnti], &users[rnti], log_h, mac_timers, RB_ID_SRB0);
users[rnti].rnti = rnti;
@ -61,27 +69,33 @@ void rlc::add_user(uint16_t rnti)
users[rnti].rlc = obj;
users[rnti].parent = this;
}
pthread_mutex_unlock(&mutex);
}
void rlc::rem_user(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->stop();
delete users[rnti].rlc;
users[rnti].rlc = NULL;
users.erase(rnti);
}
pthread_mutex_unlock(&mutex);
}
void rlc::reset(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->reset();
}
pthread_mutex_unlock(&mutex);
}
void rlc::clear_buffer(uint16_t rnti)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->empty_queue();
for (int i=0;i<SRSLTE_N_RADIO_BEARERS;i++) {
@ -89,27 +103,34 @@ void rlc::clear_buffer(uint16_t rnti)
}
log_h->info("Cleared buffer rnti=0x%x\n", rnti);
}
pthread_mutex_unlock(&mutex);
}
void rlc::add_bearer(uint16_t rnti, uint32_t lcid)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->add_bearer(lcid);
}
pthread_mutex_unlock(&mutex);
}
void rlc::add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_rlc_config_t cnfg)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->add_bearer(lcid, cnfg);
}
pthread_mutex_unlock(&mutex);
}
void rlc::add_bearer_mrb(uint16_t rnti, uint32_t lcid)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->add_bearer_mrb_enb(lcid);
}
pthread_mutex_unlock(&mutex);
}
void rlc::read_pdu_pcch(uint8_t* payload, uint32_t buffer_size)
@ -119,13 +140,14 @@ void rlc::read_pdu_pcch(uint8_t* payload, uint32_t buffer_size)
int rlc::read_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes)
{
pthread_mutex_lock(&mutex);
int ret;
uint32_t tx_queue;
if(users.count(rnti)){
if(rnti != SRSLTE_MRNTI){
if (users.count(rnti)) {
if (rnti != SRSLTE_MRNTI) {
ret = users[rnti].rlc->read_pdu(lcid, payload, nof_bytes);
tx_queue = users[rnti].rlc->get_total_buffer_state(lcid);
}else{
} else {
ret = users[rnti].rlc->read_pdu_mch(lcid, payload, nof_bytes);
tx_queue = users[rnti].rlc->get_total_mch_buffer_state(lcid);
}
@ -135,15 +157,14 @@ int rlc::read_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_b
uint32_t retx_queue = 0;
log_h->debug("Buffer state PDCP: rnti=0x%x, lcid=%d, tx_queue=%d\n", rnti, lcid, tx_queue);
mac->rlc_buffer_state(rnti, lcid, tx_queue, retx_queue);
return ret;
}else{
return SRSLTE_ERROR;
}
pthread_mutex_unlock(&mutex);
return ret;
}
void rlc::write_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes)
{
pthread_mutex_lock(&mutex);
if (users.count(rnti)) {
users[rnti].rlc->write_pdu(lcid, payload, nof_bytes);
@ -154,6 +175,7 @@ void rlc::write_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof
log_h->debug("Buffer state PDCP: rnti=0x%x, lcid=%d, tx_queue=%d\n", rnti, lcid, tx_queue);
mac->rlc_buffer_state(rnti, lcid, tx_queue, retx_queue);
}
pthread_mutex_unlock(&mutex);
}
void rlc::read_pdu_bcch_dlsch(uint32_t sib_index, uint8_t *payload)
@ -164,7 +186,8 @@ void rlc::read_pdu_bcch_dlsch(uint32_t sib_index, uint8_t *payload)
void rlc::write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* sdu)
{
pthread_mutex_lock(&mutex);
uint32_t tx_queue;
if (users.count(rnti)) {
if(rnti != SRSLTE_MRNTI){
@ -183,6 +206,7 @@ void rlc::write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* sdu)
} else {
pool->deallocate(sdu);
}
pthread_mutex_unlock(&mutex);
}
bool rlc::rb_is_um(uint16_t rnti, uint32_t lcid) {