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allow integrity protection for identity response

This commit is contained in:
Andre Puschmann 2019-10-01 16:45:17 +02:00
parent cfadd1ba0b
commit 50999d8116
2 changed files with 17 additions and 0 deletions
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2
lib/include/srslte/asn1/liblte_mme.h
View File

@ -2939,6 +2939,8 @@ typedef struct {
} LIBLTE_MME_ID_RESPONSE_MSG_STRUCT;
// Functions
LIBLTE_ERROR_ENUM liblte_mme_pack_identity_response_msg(LIBLTE_MME_ID_RESPONSE_MSG_STRUCT* id_resp,
uint8 sec_hdr_type,
uint32 count,
LIBLTE_BYTE_MSG_STRUCT* msg);
LIBLTE_ERROR_ENUM liblte_mme_unpack_identity_response_msg(LIBLTE_BYTE_MSG_STRUCT* msg,
LIBLTE_MME_ID_RESPONSE_MSG_STRUCT* id_resp);

15
lib/src/asn1/liblte_mme.cc
View File

@ -6433,12 +6433,27 @@ LIBLTE_ERROR_ENUM liblte_mme_unpack_identity_request_msg(LIBLTE_BYTE_MSG_STRUCT*
Document Reference: 24.301 v10.2.0 Section 8.2.19
*********************************************************************/
LIBLTE_ERROR_ENUM liblte_mme_pack_identity_response_msg(LIBLTE_MME_ID_RESPONSE_MSG_STRUCT* id_resp,
uint8 sec_hdr_type,
uint32 count,
LIBLTE_BYTE_MSG_STRUCT* msg)
{
LIBLTE_ERROR_ENUM err = LIBLTE_ERROR_INVALID_INPUTS;
uint8* msg_ptr = msg->msg;
if (id_resp != NULL && msg != NULL) {
if (LIBLTE_MME_SECURITY_HDR_TYPE_PLAIN_NAS != sec_hdr_type) {
// Protocol Discriminator and Security Header Type
*msg_ptr = (sec_hdr_type << 4) | (LIBLTE_MME_PD_EPS_MOBILITY_MANAGEMENT);
msg_ptr++;
// MAC will be filled in later
msg_ptr += 4;
// Sequence Number
*msg_ptr = count & 0xFF;
msg_ptr++;
}
// Protocol Discriminator and Security Header Type
*msg_ptr = (LIBLTE_MME_SECURITY_HDR_TYPE_PLAIN_NAS << 4) | (LIBLTE_MME_PD_EPS_MOBILITY_MANAGEMENT);
msg_ptr++;