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Send detach request correct security header in UE.

This commit is contained in:
Pedro Alvarez 2019-01-15 10:30:01 +00:00
parent b675e1fcc9
commit c4544f2ede
1 changed files with 7 additions and 5 deletions
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12
srsue/src/upper/nas.cc
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@ -1349,11 +1349,11 @@ void nas::send_detach_request(bool switch_off)
memcpy(&detach_request.eps_mobile_id.guti, &ctxt.guti, sizeof(LIBLTE_MME_EPS_MOBILE_ID_GUTI_STRUCT));
detach_request.nas_ksi.tsc_flag = LIBLTE_MME_TYPE_OF_SECURITY_CONTEXT_FLAG_NATIVE;
detach_request.nas_ksi.nas_ksi = ctxt.ksi;
nas_log->info("Requesting Detach with GUTI\n");
nas_log->info("Requesting Detach with GUTI\n"); //If sent as an Initial UE message, it cannot be chiphered
liblte_mme_pack_detach_request_msg(&detach_request,
LIBLTE_MME_SECURITY_HDR_TYPE_INTEGRITY_AND_CIPHERED,
ctxt.tx_count,
(LIBLTE_BYTE_MSG_STRUCT *) pdu);
rrc->is_connected() ? LIBLTE_MME_SECURITY_HDR_TYPE_INTEGRITY_AND_CIPHERED
: LIBLTE_MME_SECURITY_HDR_TYPE_INTEGRITY,
ctxt.tx_count, (LIBLTE_BYTE_MSG_STRUCT*)pdu);
if(pcap != NULL) {
pcap->write_nas(pdu->msg, pdu->N_bytes);
@ -1361,7 +1361,9 @@ void nas::send_detach_request(bool switch_off)
// Add MAC
if (pdu->N_bytes > 5) {
cipher_encrypt(pdu);
if (rrc->is_connected()) {
cipher_encrypt(pdu);
}
integrity_generate(&k_nas_int[16],
ctxt.tx_count,
SECURITY_DIRECTION_UPLINK,