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srsRAN_4G
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fix pnf packing for MIB messages

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master
Francisco Paisana 4 years ago
parent e3e9bbcd62
commit e555e50a90
2 changed files with 67 additions and 34 deletions
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98
lib/include/srslte/common/basic_pnf.h
Unescape Escape View File

@ -154,8 +154,16 @@ public:
return tmp;
}
void connect_out_rf_queue(srslte::block_queue<srslte::unique_byte_buffer_t>* rf_queue_) { rf_out_queue = rf_queue_; }
srslte::block_queue<srslte::unique_byte_buffer_t>* get_in_rf_queue() { return &rf_in_queue; }
void connect_out_rf_queue(srslte::block_queue<srslte::unique_byte_buffer_t>* rf_queue_)
{
rf_out_queue = rf_queue_;
policy = bridge;
}
srslte::block_queue<srslte::unique_byte_buffer_t>* get_in_rf_queue()
{
policy = bridge;
return &rf_in_queue;
}
private:
//! Waits for DL Config or Tx Request Msg from VNF and forwards to RF
@ -217,8 +225,7 @@ private:
std::unique_ptr<std::array<uint8_t, max_basic_api_pdu> > rx_buffer =
std::unique_ptr<std::array<uint8_t, max_basic_api_pdu> >(new std::array<uint8_t, max_basic_api_pdu>);
int32_t sf_counter = 0;
bool using_rf_queue = false;
int32_t sf_counter = 0;
while (running && (num_sf > 0 ? sf_counter < num_sf : true)) {
{
std::lock_guard<std::mutex> lock(mutex);
@ -232,10 +239,9 @@ private:
// Send request
send_sf_ind(tti);
if (not rf_in_queue.empty()) {
using_rf_queue = true;
send_rx_data_ind(tti);
} else if (not using_rf_queue) {
if (policy == bridge) {
// send_rx_data_ind(tti);
} else {
// provide UL data every 2nd TTI
if (tti % 2 == 0) {
send_rx_data_ind(tti);
@ -265,8 +271,7 @@ private:
std::unique_ptr<std::array<uint8_t, max_basic_api_pdu> > rx_buffer =
std::unique_ptr<std::array<uint8_t, max_basic_api_pdu> >(new std::array<uint8_t, max_basic_api_pdu>);
int32_t sf_counter = 0;
bool using_rf_queue = false;
int32_t sf_counter = 0;
while (running && (num_sf > 0 ? sf_counter < num_sf : true)) {
{
std::lock_guard<std::mutex> lock(mutex);
@ -280,11 +285,10 @@ private:
// Send SF indication
send_sf_ind(tti);
if (not rf_in_queue.empty()) {
using_rf_queue = true;
if (policy == bridge) {
srslte::unique_byte_buffer_t tb = rf_in_queue.wait_pop();
send_dl_ind(tti, std::move(tb));
} else if (not using_rf_queue) {
} else {
// provide DL grant every even TTI, and UL grant every odd
if (tti % 2 == 0) {
send_dl_ind(tti);
@ -371,12 +375,11 @@ private:
metrics.num_pdus += msg->nof_pdus;
if (rf_out_queue != nullptr) {
for (uint32_t i = 0; i < msg->nof_pdus; ++i) {
srslte::unique_byte_buffer_t pdu = srslte::allocate_unique_buffer(*pool);
pdu->N_bytes = msg->pdus[i].length;
memcpy(pdu->msg, msg->pdus[i].data, msg->pdus[i].length);
rf_out_queue->push(std::move(pdu));
}
uint32_t len = sizeof(*msg) - sizeof(msg->pdus->data) + msg->pdus->length;
srslte::unique_byte_buffer_t tx = srslte::allocate_unique_buffer(*pool);
memcpy(tx->msg, msg, len);
rf_out_queue->push(std::move(tx));
}
return 0;
@ -443,9 +446,6 @@ private:
0x3f,
};
#endif // PING_REQUEST_PDU
uint8_t* data = tb != nullptr ? tb->msg : tv;
uint32_t N_bytes = tb != nullptr ? tb->N_bytes : sizeof(tv);
basic_vnf_api::dl_ind_msg_t dl_ind = {};
dl_ind.header.type = basic_vnf_api::DL_IND;
@ -453,21 +453,50 @@ private:
dl_ind.tti = tti_;
dl_ind.t1 = 0;
dl_ind.nof_pdus = 1;
dl_ind.pdus[0].type = basic_vnf_api::PDSCH;
dl_ind.pdus[0].length = tb_len > 0 ? tb_len : rand_dist(rand_gen);
if (dl_ind.pdus[0].length >= N_bytes) {
// copy TV
memcpy(dl_ind.pdus[0].data, data, N_bytes);
// set remaining bytes to zero
memset(dl_ind.pdus[0].data + N_bytes, 0xaa, dl_ind.pdus[0].length - N_bytes);
uint32_t tot_bytes = 0;
uint32_t tb_size = tb_len > 0 ? tb_len : rand_dist(rand_gen);
if (tb != nullptr) {
auto* header = (basic_vnf_api::msg_header_t*)tb->msg;
if (header->type == basic_vnf_api::TX_REQUEST) {
auto* tx_req = (basic_vnf_api::tx_request_msg_t*)tb->msg;
dl_ind.nof_pdus = tx_req->nof_pdus;
// dl_ind.tti = tx_req->tti;
for (uint32_t i = 0; i < dl_ind.nof_pdus; ++i) {
dl_ind.pdus[i].length = tx_req->pdus[i].length;
dl_ind.pdus[i].type = tx_req->pdus[i].type;
memcpy(dl_ind.pdus[i].data, tx_req->pdus[i].data, dl_ind.pdus[i].length);
tot_bytes += dl_ind.pdus[i].length;
log_h->info_hex(
dl_ind.pdus[i].data, dl_ind.pdus[i].length, "Sending to UE a PDU (%d bytes)\n", dl_ind.pdus[i].length);
}
}
} else {
// just fill with dummy bytes
memset(dl_ind.pdus[0].data, 0xab, dl_ind.pdus[0].length);
uint32_t N_bytes = sizeof(tv);
// Create default
dl_ind.nof_pdus = 1;
dl_ind.pdus[0].type = basic_vnf_api::PDSCH;
dl_ind.pdus[0].length = tb_size;
if (dl_ind.pdus[0].length >= N_bytes) {
// copy TV
memcpy(dl_ind.pdus[0].data, tv, N_bytes);
tot_bytes = N_bytes;
}
log_h->info_hex(dl_ind.pdus[0].data, N_bytes, "Sending to UE a TB (%d bytes)\n", N_bytes);
}
log_h->info_hex(dl_ind.pdus[0].data, N_bytes, "Sending to UE a TB (%d bytes)\n", N_bytes);
if (tot_bytes > 0 and tot_bytes < tb_size) {
uint8_t* offset = &dl_ind.pdus[dl_ind.nof_pdus - 1].data[dl_ind.pdus[dl_ind.nof_pdus - 1].length];
memset(offset, 0xaa, tb_size - tot_bytes);
} else if (tot_bytes == 0) {
// just fill with dummy bytes
dl_ind.nof_pdus = 1;
memset(dl_ind.pdus[0].data, 0xab, tb_size);
}
int n = 0;
if ((n = sendto(sockfd, &dl_ind, sizeof(dl_ind), 0, (struct sockaddr*)&servaddr, sizeof(servaddr))) < 0) {
@ -523,6 +552,7 @@ private:
srslte::block_queue<srslte::unique_byte_buffer_t>* rf_out_queue = nullptr;
srslte::block_queue<srslte::unique_byte_buffer_t> rf_in_queue;
enum data_policy_t { self_gen, bridge } policy = self_gen;
};
} // namespace srslte

3
lib/src/common/basic_vnf.cc
Unescape Escape View File

@ -329,6 +329,9 @@ int srslte_basic_vnf::tx_request(const srsenb::phy_interface_stack_nr::tx_reques
log_h->error("Trying to send %d PDUs but only %d supported\n", request.nof_pdus, MAX_NUM_PDUS);
return SRSLTE_ERROR;
}
if (request.nof_pdus == 0) {
return SRSLTE_SUCCESS;
}
// Generate Tx request
m_tx_req_msg->header.type = basic_vnf_api::TX_REQUEST;

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