mirror of https://github.com/PentHertz/srsLTE.git
Changed PDCP configuration to explicitly have tx and rx direction. Decrypt on PDCP NR seems fine.
This commit is contained in:
parent
ea3c44e9ac
commit
d3b6828082
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@ -77,10 +77,12 @@ typedef enum { PDCP_RB_IS_SRB, PDCP_RB_IS_DRB } pdcp_rb_type_t;
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class srslte_pdcp_config_t
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class srslte_pdcp_config_t
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{
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{
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public:
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public:
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srslte_pdcp_config_t(uint8_t bearer_id_, pdcp_rb_type_t rb_type_, uint8_t direction_, uint8_t sn_len_) :
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srslte_pdcp_config_t(
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uint8_t bearer_id_, pdcp_rb_type_t rb_type_, uint8_t tx_direction_, uint8_t rx_direction_, uint8_t sn_len_) :
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bearer_id(bearer_id_),
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bearer_id(bearer_id_),
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rb_type(rb_type_),
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rb_type(rb_type_),
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direction(direction_),
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tx_direction(tx_direction_),
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rx_direction(rx_direction_),
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sn_len(sn_len_)
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sn_len(sn_len_)
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{
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{
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hdr_len_bytes = ceil((float)sn_len / 8);
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hdr_len_bytes = ceil((float)sn_len / 8);
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@ -88,7 +90,8 @@ public:
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uint8_t bearer_id;
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uint8_t bearer_id;
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pdcp_rb_type_t rb_type;
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pdcp_rb_type_t rb_type;
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uint8_t direction;
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uint8_t tx_direction;
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uint8_t rx_direction;
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uint8_t sn_len;
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uint8_t sn_len;
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uint8_t hdr_len_bytes;
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uint8_t hdr_len_bytes;
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@ -93,7 +93,8 @@ protected:
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bool do_integrity = false;
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bool do_integrity = false;
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bool do_encryption = false;
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bool do_encryption = false;
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srslte_pdcp_config_t cfg = {1, PDCP_RB_IS_DRB, SECURITY_DIRECTION_UPLINK, PDCP_SN_LEN_12};
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srslte_pdcp_config_t cfg = {
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1, PDCP_RB_IS_DRB, SECURITY_DIRECTION_DOWNLINK, SECURITY_DIRECTION_UPLINK, PDCP_SN_LEN_12};
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std::mutex mutex;
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std::mutex mutex;
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@ -45,6 +45,15 @@ void pdcp_entity_base::config_security(uint8_t* k_rrc_enc_,
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}
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}
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cipher_algo = cipher_algo_;
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cipher_algo = cipher_algo_;
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integ_algo = integ_algo_;
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integ_algo = integ_algo_;
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log->info("Configuring security with %s and %s\n",
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integrity_algorithm_id_text[integ_algo],
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ciphering_algorithm_id_text[cipher_algo]);
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log->debug_hex(k_rrc_enc, 32,"K_rrc_enc");
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log->debug_hex(k_up_enc, 32,"K_up_enc");
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log->debug_hex(k_rrc_int, 32,"K_rrc_int");
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log->debug_hex(k_up_int, 32,"K_up_int");
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}
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}
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@ -70,7 +79,7 @@ void pdcp_entity_base::integrity_generate(uint8_t* msg, uint32_t msg_len, uint32
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security_128_eia1(&k_int[16],
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security_128_eia1(&k_int[16],
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count,
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count,
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cfg.bearer_id - 1,
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cfg.bearer_id - 1,
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cfg.direction,
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cfg.tx_direction,
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msg,
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msg,
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msg_len,
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msg_len,
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mac);
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mac);
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@ -79,7 +88,7 @@ void pdcp_entity_base::integrity_generate(uint8_t* msg, uint32_t msg_len, uint32
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security_128_eia2(&k_int[16],
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security_128_eia2(&k_int[16],
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count,
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count,
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cfg.bearer_id - 1,
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cfg.bearer_id - 1,
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cfg.direction,
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cfg.tx_direction,
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msg,
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msg,
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msg_len,
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msg_len,
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mac);
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mac);
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@ -91,7 +100,7 @@ void pdcp_entity_base::integrity_generate(uint8_t* msg, uint32_t msg_len, uint32
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log->debug("Integrity gen input: COUNT %d, Bearer ID %d, Direction %s\n",
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log->debug("Integrity gen input: COUNT %d, Bearer ID %d, Direction %s\n",
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count,
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count,
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cfg.bearer_id,
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cfg.bearer_id,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK ? "Downlink" : "Uplink"));
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(cfg.tx_direction == SECURITY_DIRECTION_DOWNLINK ? "Downlink" : "Uplink"));
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log->debug_hex(msg, msg_len, "Integrity gen input msg:");
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log->debug_hex(msg, msg_len, "Integrity gen input msg:");
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log->debug_hex(mac, 4, "MAC (generated)");
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log->debug_hex(mac, 4, "MAC (generated)");
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}
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}
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@ -113,24 +122,10 @@ bool pdcp_entity_base::integrity_verify(uint8_t* msg, uint32_t msg_len, uint32_t
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case INTEGRITY_ALGORITHM_ID_EIA0:
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case INTEGRITY_ALGORITHM_ID_EIA0:
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break;
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break;
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case INTEGRITY_ALGORITHM_ID_128_EIA1:
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case INTEGRITY_ALGORITHM_ID_128_EIA1:
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security_128_eia1(&k_int[16],
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security_128_eia1(&k_int[16], count, cfg.bearer_id - 1, cfg.rx_direction, msg, msg_len, mac_exp);
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count,
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cfg.bearer_id - 1,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? (SECURITY_DIRECTION_UPLINK)
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: (SECURITY_DIRECTION_DOWNLINK),
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msg,
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msg_len,
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mac_exp);
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break;
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break;
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case INTEGRITY_ALGORITHM_ID_128_EIA2:
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case INTEGRITY_ALGORITHM_ID_128_EIA2:
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security_128_eia2(&k_int[16],
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security_128_eia2(&k_int[16], count, cfg.bearer_id - 1, cfg.rx_direction, msg, msg_len, mac_exp);
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count,
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cfg.bearer_id - 1,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? (SECURITY_DIRECTION_UPLINK)
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: (SECURITY_DIRECTION_DOWNLINK),
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msg,
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msg_len,
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mac_exp);
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break;
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break;
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default:
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default:
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break;
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break;
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@ -139,7 +134,7 @@ bool pdcp_entity_base::integrity_verify(uint8_t* msg, uint32_t msg_len, uint32_t
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log->debug("Integrity check input: COUNT %d, Bearer ID %d, Direction %s\n",
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log->debug("Integrity check input: COUNT %d, Bearer ID %d, Direction %s\n",
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count,
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count,
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cfg.bearer_id,
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cfg.bearer_id,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK ? "Downlink" : "Uplink"));
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cfg.rx_direction == SECURITY_DIRECTION_DOWNLINK ? "Downlink" : "Uplink");
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log->debug_hex(msg, msg_len, "Integrity check input msg:");
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log->debug_hex(msg, msg_len, "Integrity check input msg:");
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if (integ_algo != INTEGRITY_ALGORITHM_ID_EIA0) {
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if (integ_algo != INTEGRITY_ALGORITHM_ID_EIA0) {
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@ -174,18 +169,18 @@ void pdcp_entity_base::cipher_encrypt(uint8_t* msg, uint32_t msg_len, uint32_t c
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log->debug("Cipher encrypt input: COUNT: %d, Bearer ID: %d, Direction %s\n",
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log->debug("Cipher encrypt input: COUNT: %d, Bearer ID: %d, Direction %s\n",
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count,
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count,
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cfg.bearer_id,
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cfg.bearer_id,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? "Downlink" : "Uplink");
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cfg.tx_direction == SECURITY_DIRECTION_DOWNLINK ? "Downlink" : "Uplink");
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log->debug_hex(msg, msg_len, "Cipher encrypt input msg");
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log->debug_hex(msg, msg_len, "Cipher encrypt input msg");
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switch (cipher_algo) {
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switch (cipher_algo) {
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case CIPHERING_ALGORITHM_ID_EEA0:
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case CIPHERING_ALGORITHM_ID_EEA0:
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break;
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break;
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case CIPHERING_ALGORITHM_ID_128_EEA1:
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case CIPHERING_ALGORITHM_ID_128_EEA1:
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security_128_eea1(&(k_enc[16]), count, cfg.bearer_id - 1, cfg.direction, msg, msg_len, ct_tmp.msg);
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security_128_eea1(&(k_enc[16]), count, cfg.bearer_id - 1, cfg.tx_direction, msg, msg_len, ct_tmp.msg);
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memcpy(ct, ct_tmp.msg, msg_len);
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memcpy(ct, ct_tmp.msg, msg_len);
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break;
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break;
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case CIPHERING_ALGORITHM_ID_128_EEA2:
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case CIPHERING_ALGORITHM_ID_128_EEA2:
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security_128_eea2(&(k_enc[16]), count, cfg.bearer_id - 1, cfg.direction, msg, msg_len, ct_tmp.msg);
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security_128_eea2(&(k_enc[16]), count, cfg.bearer_id - 1, cfg.tx_direction, msg, msg_len, ct_tmp.msg);
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memcpy(ct, ct_tmp.msg, msg_len);
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memcpy(ct, ct_tmp.msg, msg_len);
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break;
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break;
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default:
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default:
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@ -209,7 +204,7 @@ void pdcp_entity_base::cipher_decrypt(uint8_t* ct, uint32_t ct_len, uint32_t cou
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log->debug("Cipher decrypt input: COUNT: %d, Bearer ID: %d, Direction %s\n",
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log->debug("Cipher decrypt input: COUNT: %d, Bearer ID: %d, Direction %s\n",
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count,
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count,
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cfg.bearer_id,
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cfg.bearer_id,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? "Downlink" : "Uplink");
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(cfg.rx_direction == SECURITY_DIRECTION_DOWNLINK) ? "Downlink" : "Uplink");
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log->debug_hex(ct, ct_len, "Cipher decrypt input msg");
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log->debug_hex(ct, ct_len, "Cipher decrypt input msg");
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switch(cipher_algo)
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switch(cipher_algo)
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@ -217,25 +212,11 @@ void pdcp_entity_base::cipher_decrypt(uint8_t* ct, uint32_t ct_len, uint32_t cou
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case CIPHERING_ALGORITHM_ID_EEA0:
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case CIPHERING_ALGORITHM_ID_EEA0:
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break;
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break;
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case CIPHERING_ALGORITHM_ID_128_EEA1:
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case CIPHERING_ALGORITHM_ID_128_EEA1:
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security_128_eea1(&(k_enc[16]),
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security_128_eea1(&k_enc[16], count, cfg.bearer_id - 1, cfg.rx_direction, ct, ct_len, msg_tmp.msg);
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count,
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cfg.bearer_id - 1,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? (SECURITY_DIRECTION_UPLINK)
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: (SECURITY_DIRECTION_DOWNLINK),
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ct,
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ct_len,
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msg_tmp.msg);
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memcpy(msg, msg_tmp.msg, ct_len);
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memcpy(msg, msg_tmp.msg, ct_len);
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break;
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break;
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case CIPHERING_ALGORITHM_ID_128_EEA2:
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case CIPHERING_ALGORITHM_ID_128_EEA2:
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security_128_eea2(&(k_enc[16]),
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security_128_eea2(&k_enc[16], count, cfg.bearer_id - 1, cfg.rx_direction, ct, ct_len, msg_tmp.msg);
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count,
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cfg.bearer_id - 1,
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(cfg.direction == SECURITY_DIRECTION_DOWNLINK) ? (SECURITY_DIRECTION_UPLINK)
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: (SECURITY_DIRECTION_DOWNLINK),
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ct,
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ct_len,
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msg_tmp.msg);
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memcpy(msg, msg_tmp.msg, ct_len);
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memcpy(msg, msg_tmp.msg, ct_len);
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break;
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break;
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default:
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default:
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@ -107,7 +107,7 @@ private:
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int test_tx_basic(srslte::byte_buffer_pool* pool, srslte::log* log)
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int test_tx_basic(srslte::byte_buffer_pool* pool, srslte::log* log)
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{
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{
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srslte::pdcp_entity_nr pdcp;
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srslte::pdcp_entity_nr pdcp;
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srslte::srslte_pdcp_config_t cfg = {1, srslte::PDCP_RB_IS_DRB, SECURITY_DIRECTION_UPLINK, srslte::PDCP_SN_LEN_12};
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srslte::srslte_pdcp_config_t cfg = {1, srslte::PDCP_RB_IS_DRB, SECURITY_DIRECTION_UPLINK, SECURITY_DIRECTION_DOWNLINK, srslte::PDCP_SN_LEN_12};
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rlc_dummy rlc(log);
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rlc_dummy rlc(log);
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rrc_dummy rrc(log);
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rrc_dummy rrc(log);
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@ -149,11 +149,11 @@ int test_tx_basic(srslte::byte_buffer_pool* pool, srslte::log* log)
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bool test_rx_basic(srslte::byte_buffer_pool* pool, srslte::log* log)
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bool test_rx_basic(srslte::byte_buffer_pool* pool, srslte::log* log)
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{
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{
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srslte::pdcp_entity_nr pdcp;
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srslte::pdcp_entity_nr pdcp;
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srslte::srslte_pdcp_config_t cfg = {1, srslte::PDCP_RB_IS_DRB, SECURITY_DIRECTION_UPLINK, srslte::PDCP_SN_LEN_12};
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srslte::srslte_pdcp_config_t cfg = {1, srslte::PDCP_RB_IS_DRB, SECURITY_DIRECTION_DOWNLINK, SECURITY_DIRECTION_UPLINK, srslte::PDCP_SN_LEN_12};
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rlc_dummy rlc(log);
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rlc_dummy rlc(log);
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rrc_dummy rrc(log);
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rrc_dummy rrc(log);
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gw_dummy gw(log);
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gw_dummy gw(log);
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pdcp.init(&rlc, &rrc, &gw, log, 0, cfg);
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pdcp.init(&rlc, &rrc, &gw, log, 0, cfg);
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pdcp.config_security(k_enc, k_int, k_enc, k_int, srslte::CIPHERING_ALGORITHM_ID_128_EEA2, srslte::INTEGRITY_ALGORITHM_ID_128_EIA2);
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pdcp.config_security(k_enc, k_int, k_enc, k_int, srslte::CIPHERING_ALGORITHM_ID_128_EEA2, srslte::INTEGRITY_ALGORITHM_ID_128_EIA2);
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@ -194,10 +194,11 @@ void rrc::add_user(uint16_t rnti)
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if (rnti == SRSLTE_MRNTI) {
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if (rnti == SRSLTE_MRNTI) {
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srslte::srslte_pdcp_config_t cfg = {
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srslte::srslte_pdcp_config_t cfg = {
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.bearer_id = 1,
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.bearer_id = 1,
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.rb_type = srslte::PDCP_RB_IS_DRB,
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.rb_type = srslte::PDCP_RB_IS_DRB,
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.sn_len = srslte::PDCP_SN_LEN_12,
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.tx_direction = SECURITY_DIRECTION_DOWNLINK,
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.direction = SECURITY_DIRECTION_DOWNLINK,
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.rx_direction = SECURITY_DIRECTION_UPLINK,
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.sn_len = srslte::PDCP_SN_LEN_12,
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};
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};
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uint32_t teid_in = 1;
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uint32_t teid_in = 1;
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@ -1531,10 +1532,11 @@ void rrc::ue::send_connection_setup(bool is_setup)
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parent->rlc->add_bearer(rnti, 1, srslte::rlc_config_t::srb_config(1));
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parent->rlc->add_bearer(rnti, 1, srslte::rlc_config_t::srb_config(1));
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// Configure SRB1 in PDCP
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// Configure SRB1 in PDCP
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srslte::srslte_pdcp_config_t pdcp_cnfg{.bearer_id = 1,
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srslte::srslte_pdcp_config_t pdcp_cnfg{.bearer_id = 1,
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.rb_type = srslte::PDCP_RB_IS_DRB,
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.rb_type = srslte::PDCP_RB_IS_DRB,
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.sn_len = srslte::PDCP_SN_LEN_5,
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.tx_direction = SECURITY_DIRECTION_DOWNLINK,
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.direction = SECURITY_DIRECTION_DOWNLINK};
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.rx_direction = SECURITY_DIRECTION_UPLINK,
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.sn_len = srslte::PDCP_SN_LEN_5};
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parent->pdcp->add_bearer(rnti, 1, pdcp_cnfg);
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parent->pdcp->add_bearer(rnti, 1, pdcp_cnfg);
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// Configure PHY layer
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// Configure PHY layer
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@ -1739,10 +1741,11 @@ void rrc::ue::send_connection_reconf(srslte::unique_byte_buffer_t pdu)
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parent->rlc->add_bearer(rnti, 2, srslte::rlc_config_t::srb_config(2));
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parent->rlc->add_bearer(rnti, 2, srslte::rlc_config_t::srb_config(2));
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// Configure SRB2 in PDCP
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// Configure SRB2 in PDCP
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srslte::srslte_pdcp_config_t pdcp_cnfg_srb = {.bearer_id = 2,
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srslte::srslte_pdcp_config_t pdcp_cnfg_srb = {.bearer_id = 2,
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.rb_type = srslte::PDCP_RB_IS_SRB,
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.rb_type = srslte::PDCP_RB_IS_SRB,
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.direction = SECURITY_DIRECTION_DOWNLINK,
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.tx_direction = SECURITY_DIRECTION_DOWNLINK,
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.sn_len = srslte::PDCP_SN_LEN_5};
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.rx_direction = SECURITY_DIRECTION_UPLINK,
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.sn_len = srslte::PDCP_SN_LEN_5};
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parent->pdcp->add_bearer(rnti, 2, pdcp_cnfg_srb);
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parent->pdcp->add_bearer(rnti, 2, pdcp_cnfg_srb);
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parent->pdcp->config_security(rnti, 2, k_rrc_enc, k_rrc_int, k_up_enc, cipher_algo, integ_algo);
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parent->pdcp->config_security(rnti, 2, k_rrc_enc, k_rrc_int, k_up_enc, cipher_algo, integ_algo);
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parent->pdcp->enable_integrity(rnti, 2);
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parent->pdcp->enable_integrity(rnti, 2);
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||||||
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@ -1752,10 +1755,11 @@ void rrc::ue::send_connection_reconf(srslte::unique_byte_buffer_t pdu)
|
||||||
parent->rlc->add_bearer(rnti, 3, srslte::make_rlc_config_t(conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].rlc_cfg));
|
parent->rlc->add_bearer(rnti, 3, srslte::make_rlc_config_t(conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].rlc_cfg));
|
||||||
|
|
||||||
// Configure DRB1 in PDCP
|
// Configure DRB1 in PDCP
|
||||||
srslte::srslte_pdcp_config_t pdcp_cnfg_drb = {.bearer_id = 1,
|
srslte::srslte_pdcp_config_t pdcp_cnfg_drb = {.bearer_id = 1,
|
||||||
.rb_type = srslte::PDCP_RB_IS_DRB,
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.rb_type = srslte::PDCP_RB_IS_DRB,
|
||||||
.direction = SECURITY_DIRECTION_DOWNLINK,
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.tx_direction = SECURITY_DIRECTION_DOWNLINK,
|
||||||
.sn_len = srslte::PDCP_SN_LEN_12};
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.rx_direction = SECURITY_DIRECTION_UPLINK,
|
||||||
|
.sn_len = srslte::PDCP_SN_LEN_12};
|
||||||
if (conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].pdcp_cfg.rlc_um_present) {
|
if (conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].pdcp_cfg.rlc_um_present) {
|
||||||
if (conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].pdcp_cfg.rlc_um.pdcp_sn_size.value ==
|
if (conn_reconf->rr_cfg_ded.drb_to_add_mod_list[0].pdcp_cfg.rlc_um.pdcp_sn_size.value ==
|
||||||
pdcp_cfg_s::rlc_um_s_::pdcp_sn_size_e_::len7bits) {
|
pdcp_cfg_s::rlc_um_s_::pdcp_sn_size_e_::len7bits) {
|
||||||
|
@ -1820,10 +1824,11 @@ void rrc::ue::send_connection_reconf_new_bearer(LIBLTE_S1AP_E_RABTOBESETUPLISTBE
|
||||||
|
|
||||||
// Configure DRB in PDCP
|
// Configure DRB in PDCP
|
||||||
srslte::srslte_pdcp_config_t pdcp_config = {
|
srslte::srslte_pdcp_config_t pdcp_config = {
|
||||||
.bearer_id = (uint8_t)(drb_item.drb_id - 1), // TODO: Review all ID mapping LCID DRB ERAB EPSBID Mapping
|
.bearer_id = (uint8_t)(drb_item.drb_id - 1), // TODO: Review all ID mapping LCID DRB ERAB EPSBID Mapping
|
||||||
.rb_type = srslte::PDCP_RB_IS_DRB,
|
.rb_type = srslte::PDCP_RB_IS_DRB,
|
||||||
.sn_len = srslte::PDCP_SN_LEN_12,
|
.tx_direction = SECURITY_DIRECTION_DOWNLINK,
|
||||||
.direction = SECURITY_DIRECTION_DOWNLINK};
|
.rx_direction = SECURITY_DIRECTION_UPLINK,
|
||||||
|
.sn_len = srslte::PDCP_SN_LEN_12};
|
||||||
parent->pdcp->add_bearer(rnti, lcid, pdcp_config);
|
parent->pdcp->add_bearer(rnti, lcid, pdcp_config);
|
||||||
|
|
||||||
// DRB has already been configured in GTPU through bearer setup
|
// DRB has already been configured in GTPU through bearer setup
|
||||||
|
|
|
@ -3147,7 +3147,8 @@ void rrc::add_srb(srb_to_add_mod_s* srb_cnfg)
|
||||||
// Setup PDCP
|
// Setup PDCP
|
||||||
srslte_pdcp_config_t pdcp_cfg = {.bearer_id = srb_cnfg->srb_id,
|
srslte_pdcp_config_t pdcp_cfg = {.bearer_id = srb_cnfg->srb_id,
|
||||||
.rb_type = PDCP_RB_IS_SRB,
|
.rb_type = PDCP_RB_IS_SRB,
|
||||||
.direction = SECURITY_DIRECTION_DOWNLINK,
|
.tx_direction = SECURITY_DIRECTION_UPLINK,
|
||||||
|
.rx_direction = SECURITY_DIRECTION_DOWNLINK,
|
||||||
.sn_len = PDCP_SN_LEN_5};
|
.sn_len = PDCP_SN_LEN_5};
|
||||||
pdcp->add_bearer(srb_cnfg->srb_id, pdcp_cfg);
|
pdcp->add_bearer(srb_cnfg->srb_id, pdcp_cfg);
|
||||||
if (RB_ID_SRB2 == srb_cnfg->srb_id) {
|
if (RB_ID_SRB2 == srb_cnfg->srb_id) {
|
||||||
|
@ -3223,7 +3224,8 @@ void rrc::add_drb(drb_to_add_mod_s* drb_cnfg)
|
||||||
// Setup PDCP
|
// Setup PDCP
|
||||||
srslte_pdcp_config_t pdcp_cfg = {.bearer_id = drb_cnfg->drb_id,
|
srslte_pdcp_config_t pdcp_cfg = {.bearer_id = drb_cnfg->drb_id,
|
||||||
.rb_type = PDCP_RB_IS_DRB,
|
.rb_type = PDCP_RB_IS_DRB,
|
||||||
.direction = SECURITY_DIRECTION_DOWNLINK,
|
.tx_direction = SECURITY_DIRECTION_UPLINK,
|
||||||
|
.rx_direction = SECURITY_DIRECTION_DOWNLINK,
|
||||||
.sn_len = PDCP_SN_LEN_12};
|
.sn_len = PDCP_SN_LEN_12};
|
||||||
if (drb_cnfg->pdcp_cfg.rlc_um_present) {
|
if (drb_cnfg->pdcp_cfg.rlc_um_present) {
|
||||||
if (drb_cnfg->pdcp_cfg.rlc_um.pdcp_sn_size == pdcp_cfg_s::rlc_um_s_::pdcp_sn_size_e_::len7bits) {
|
if (drb_cnfg->pdcp_cfg.rlc_um.pdcp_sn_size == pdcp_cfg_s::rlc_um_s_::pdcp_sn_size_e_::len7bits) {
|
||||||
|
|
Loading…
Reference in New Issue