maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add calc kgnb and PDCP security settings in nrUE.

Browse Source
This commit is contained in:
Masayuki Harada
2021-09-08 22:52:50 +09:00
parent b590cec2e3
commit d0575640fc
2 changed files with 92 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair3/NAS/NR_UE/nr_nas_msg_sim.c
+36 -1
View File
@@ -374,6 +374,7 @@ void generateIdentityResponse(as_nas_info_t *initialNasMsg, uint8_t identitytype
}
OctetString knas_int;
uint8_t kamf[32];
static void generateAuthenticationResp(as_nas_info_t *initialNasMsg, uint8_t *buf, uicc_t *uicc){
uint8_t ak[6];
@@ -381,7 +382,6 @@ static void generateAuthenticationResp(as_nas_info_t *initialNasMsg, uint8_t *bu
uint8_t kausf[32];
uint8_t sqn[6];
uint8_t kseaf[32];
uint8_t kamf[32];
OctetString res;
// get RAND for authentication request
@@ -465,6 +465,40 @@ static void generateAuthenticationResp(as_nas_info_t *initialNasMsg, uint8_t *bu
initialNasMsg->length = mm_msg_encode(mm_msg, (uint8_t*)(initialNasMsg->data), size);
}
uint8_t global_kgnb[32];
static void get_kgnb(uint32_t count)
{
/* Compute the KDF input parameter
* S = FC(0x11) || UL NAS Count || 0x00 0x04
*/
uint8_t input[32];
// uint16_t length = 4;
// int offset = 0;
LOG_TRACE(INFO, "%s with count= %d", __FUNCTION__, count);
memset(input, 0, 32);
input[0] = 0x6E;
// P0
input[1] = count >> 24;
input[2] = (uint8_t)(count >> 16);
input[3] = (uint8_t)(count >> 8);
input[4] = (uint8_t)count;
// L0
input[5] = 0;
input[6] = 4;
// P1
input[7] = 0x01;
// L1
input[8] = 0;
input[9] = 1;
kdf(kamf, 32, input, 10, global_kgnb, 32);
printf("global_kgnb : ");
for(int pp=0;pp<32;pp++)
printf("%02x ",global_kgnb[pp]);
printf("\n");
}
static void generateSecurityModeComplete(as_nas_info_t *initialNasMsg)
{
int size = sizeof(mm_msg_header_t);
@@ -893,6 +927,7 @@ void *nas_nrue_task(void *args_p)
generateAuthenticationResp(&initialNasMsg, pdu_buffer, uicc);
break;
case FGS_SECURITY_MODE_COMMAND:
get_kgnb(0);
generateSecurityModeComplete(&initialNasMsg);
break;
case FGS_DOWNLINK_NAS_TRANSPORT: