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openairinterface5g/openair3/NAS/TEST/AS_SIMULATOR/as_process.c
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gauthier 7b5431a62c renamed openair-cn to openair3 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-10-06 16:53:42 +00:00

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/*****************************************************************************
Eurecom OpenAirInterface 3
Copyright(c) 2012 Eurecom
Source as_process.c
Version 0.1
Date 2013/04/11
Product Access-Stratum sublayer simulator
Subsystem AS message processing
Author Frederic Maurel
Description Defines functions executed by the Access-Stratum sublayer
upon receiving AS messages from the Non-Access-Stratum.
*****************************************************************************/
#include "as_process.h"
#include "nas_process.h"
#include "commonDef.h"
#include "as_data.h"
#include <sys/types.h>
#include <stdio.h> // snprintf
#include <string.h> // memcpy
/****************************************************************************/
/**************** E X T E R N A L D E F I N I T I O N S ****************/
/****************************************************************************/
/****************************************************************************/
/******************* L O C A L D E F I N I T I O N S *******************/
/****************************************************************************/
/* Message Sequence Chart Generator's buffer */
#define MSCGEN_BUFFER_SIZE 1024
static char _mscgen_buffer[MSCGEN_BUFFER_SIZE];
/* Tracking area code */
#define DEFAULT_TAC 0xCAFE // two byte in hexadecimal format
/* Cell identity */
#define DEFAULT_CI 0x01020304 // four byte in hexadecimal format
/* Reference signal received power */
#define DEFAULT_RSRP 27
/* Reference signal received quality */
#define DEFAULT_RSRQ 55
static ssize_t _process_plmn(char* buffer, const plmn_t* plmn, size_t len);
static int _process_dump(char* buffer, int len, const char* msg, int size);
/****************************************************************************/
/****************** E X P O R T E D F U N C T I O N S ******************/
/****************************************************************************/
/*
* =============================================================================
* Functions used to process messages received from the UE NAS process
* =============================================================================
*/
/*
* -----------------------------------------------------------------------------
* Process cell information request message
* -----------------------------------------------------------------------------
*/
int process_cell_info_req(int msg_id, const cell_info_req_t* req,
cell_info_cnf_t* cnf)
{
int index = 0;
printf("INFO\t: %s - Process cell information request\n", __FUNCTION__);
index += _process_plmn(_mscgen_buffer, &req->plmnID, MSCGEN_BUFFER_SIZE);
snprintf(_mscgen_buffer + index, MSCGEN_BUFFER_SIZE - index,
", rat = 0x%x%c", req->rat, '\0');
MSCGEN("[MSC_MSG][%s][%s][--- Cell Information Request (0x%.4x)\\n%s --->][%s]\n",
getTime(), _ue_id, msg_id, _mscgen_buffer, _as_id);
/* Setup cell information confirm message */
cnf->errCode = AS_SUCCESS;
cnf->tac = DEFAULT_TAC;
cnf->cellID = DEFAULT_CI;
cnf->rat = AS_EUTRAN;
cnf->rsrp = DEFAULT_RSRP;
cnf->rsrq = DEFAULT_RSRQ;
snprintf(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
"tac = 0x%.4x, cellID = 0x%.8x, rat = 0x%x, RSRQ = %u, RSRP = %u%c",
cnf->tac, cnf->cellID, cnf->rat, cnf->rsrq, cnf->rsrp, '\0');
MSCGEN("[MSC_MSG][%s][%s][--- Cell Information Confirm (0x%.4x)\\n%s --->][%s]\n",
getTime(), _as_id, AS_CELL_INFO_CNF, _mscgen_buffer, _ue_id);
printf("INFO\t: %s - Send cell informtion confirm\n", __FUNCTION__);
return (AS_CELL_INFO_CNF);
}
/*
* -----------------------------------------------------------------------------
* Process NAS signalling connection establishment request message
* -----------------------------------------------------------------------------
*/
int process_nas_establish_req(int msg_id, const nas_establish_req_t* req,
nas_establish_ind_t* ind,
nas_establish_cnf_t* cnf)
{
int bytes;
printf("INFO\t: %s - Process NAS signalling connection establishment "
"request\n", __FUNCTION__);
// Attach_Request.Pdn_Connectivity_Request.ebi = 5
//req->initialNasMsg.data[23] = 0x52; // MME DEBUG (Reject Attachment)
// Attach_Request.Pdn_Connectivity_Request.messagetype = WRONG_MESSAGE_TYPE
//req->initialNasMsg.data[25] = 0xc4; // MME DEBUG (Send ESM status)
snprintf(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
"cause = %s, type = %s, tmsi = {MMEcode = %d, m_tmsi = %u}%c",
rrcCause(req->cause), rrcType(req->type),
req->s_tmsi.MMEcode, req->s_tmsi.m_tmsi, '\0');
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment Request "
"(0x%.4x)\\n%s --->][%s]\n",
getTime(), _ue_id, msg_id, _mscgen_buffer, _as_id);
_process_dump(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->initialNasMsg.data, req->initialNasMsg.length);
MSCGEN("[MSC_RBOX][%s][%s][%s]\n", _ue_id, _as_id, _mscgen_buffer);
/* Process initial NAS message */
bytes = nas_process(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->initialNasMsg.data,
req->initialNasMsg.length);
if (bytes < 0) {
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment "
"Indication (0x%.4x)\\ntac = 0x%.4x\\n%s ---x][%s]\n", getTime(),
_as_id, AS_NAS_ESTABLISH_IND, ind->tac, _mscgen_buffer, _mme_id);
/* Setup NAS signalling connection establishment confirmation message */
cnf->errCode = AS_TERMINATED_AS;
return (0);
}
/* Setup NAS signalling connection establishment indication message */
ind->UEid = 1; // Valid UEid starts at index 1
ind->tac = DEFAULT_TAC;
if (req->initialNasMsg.length > 0) {
ind->initialNasMsg.data = (Byte_t*)malloc(req->initialNasMsg.length);
if (ind->initialNasMsg.data) {
memcpy(ind->initialNasMsg.data, req->initialNasMsg.data,
req->initialNasMsg.length);
ind->initialNasMsg.length = req->initialNasMsg.length;
}
}
// Attach_Request.messagetype = WRONG_MESSAGE_TYPE
//ind->initialNasMsg.data[1] = 0x47; // MME DEBUG (Send EMM status)
/* Setup NAS signalling connection establishment confirmation message */
cnf->errCode = AS_SUCCESS;
// Transmission failure of Attach Request message
//cnf->errCode = AS_FAILURE; // UE DEBUG
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment Indication "
"(0x%.4x)\\nUEid = %u, tac = 0x%.4x\\n%s --->][%s]\n", getTime(),
_as_id, AS_NAS_ESTABLISH_IND, ind->UEid, ind->tac, _mscgen_buffer, _mme_id);
printf("INFO\t: %s - Send NAS signalling connection establishment "
"indication\n", __FUNCTION__);
return (AS_NAS_ESTABLISH_IND);
}
/*
* -----------------------------------------------------------------------------
* Process Uplink data transfer request message
* -----------------------------------------------------------------------------
*/
int process_ul_info_transfer_req(int msg_id, const ul_info_transfer_req_t* req,
ul_info_transfer_ind_t* ind,
ul_info_transfer_cnf_t* cnf)
{
int bytes;
printf("INFO\t: %s - Process uplink data transfer request\n", __FUNCTION__);
// Attach_Complete.Activate_Default_EPS_Bearer_Context_Accept.ebi = UNASSIGNED
//if (req->nasMsg.data[7] == 0x43) {
// req->nasMsg.data[10] = 0x02; // MME DEBUG (Send ESM status)
//}
// Deactivate_EPS_Bearer_Context_Accept.ebi = UNASSIGNED
//if (req->nasMsg.data[8] == 0xCE) {
// req->nasMsg.data[6] = 0x02; // MME DEBUG (Discard ESM message)
//}
snprintf(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
"tmsi = {MMEcode = %d, m_tmsi = %u}%c",
req->s_tmsi.MMEcode, req->s_tmsi.m_tmsi, '\0');
MSCGEN("[MSC_MSG][%s][%s][--- Uplink Information Request "
"(0x%.4x)\\n%s --->][%s]\n",
getTime(), _ue_id, msg_id, _mscgen_buffer, _as_id);
_process_dump(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->nasMsg.data, req->nasMsg.length);
MSCGEN("[MSC_RBOX][%s][%s][%s]\n", _ue_id, _as_id, _mscgen_buffer);
/* Process NAS message */
bytes = nas_process(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->nasMsg.data,
req->nasMsg.length);
if (bytes < 0) {
MSCGEN("[MSC_MSG][%s][%s][--- Uplink Information Indication "
"(0x%.4x)\\n%s ---x][%s]\n", getTime(),
_as_id, AS_UL_INFO_TRANSFER_IND, _mscgen_buffer, _mme_id);
/* Setup uplink information confirmation message */
cnf->errCode = AS_TERMINATED_AS;
return (0);
}
/* Setup uplink information indication message */
ind->UEid = 1; // Valid UEid starts at index 1
if (req->nasMsg.length > 0) {
ind->nasMsg.data = (Byte_t*)malloc(req->nasMsg.length);
if (ind->nasMsg.data) {
memcpy(ind->nasMsg.data, req->nasMsg.data, req->nasMsg.length);
ind->nasMsg.length = req->nasMsg.length;
}
}
// Identity-Response.messagetype = WRONG_MESSAGE_TYPE
//if (ind->nasMsg.data[1] == 0x56) {
// ind->nasMsg.data[1] = 0x47; // MME DEBUG (Send EMM status)
//}
// Authentication-Response.messagetype = WRONG_MESSAGE_TYPE
//if (ind->nasMsg.data[1] == 0x53) {
// ind->nasMsg.data[1] = 0x47; // MME DEBUG (Send EMM status)
//}
// Security-Mode-Complete.messagetype = WRONG_MESSAGE_TYPE
//if (ind->nasMsg.data[7] == 0x5e) {
// ind->nasMsg.data[7] = 0x47; // MME DEBUG (Send EMM status)
//}
/* Setup uplink information confirmation message */
cnf->UEid = 0;
cnf->errCode = AS_SUCCESS;
// Transmission failure of Attach Complete message
//if (req->nasMsg.data[7] == 0x43) {
// cnf->errCode = AS_FAILURE; // UE DEBUG
//}
MSCGEN("[MSC_MSG][%s][%s][--- Uplink Information Indication "
"(0x%.4x), UEid = %u\\n%s --->][%s]\n", getTime(),
_as_id, AS_UL_INFO_TRANSFER_IND, ind->UEid, _mscgen_buffer, _mme_id);
printf("INFO\t: %s - Send uplink data transfer indication\n", __FUNCTION__);
return (AS_UL_INFO_TRANSFER_IND);
}
/*
* -----------------------------------------------------------------------------
* Process NAS signalling connection release request message
* -----------------------------------------------------------------------------
*/
int process_nas_release_req(int msg_id, const nas_release_req_t* req)
{
printf("INFO\t: %s - Process NAS signalling connection release request\n",
__FUNCTION__);
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Release Request "
"(0x%.4x), tmsi = {MMEcode = %d, m_tmsi = %u}, "
"cause = %s (%u) --->][%s]\n", getTime(), _ue_id, msg_id,
req->s_tmsi.MMEcode, req->s_tmsi.m_tmsi,
rrcReleaseCause(req->cause), req->cause, _as_id);
return (AS_NAS_RELEASE_REQ);
}
/*
* =============================================================================
* Functions used to process messages received from the MME NAS process
* =============================================================================
*/
/*
* -----------------------------------------------------------------------------
* Process NAS signalling connection establishment response message
* -----------------------------------------------------------------------------
*/
int process_nas_establish_rsp(int msg_id, const nas_establish_rsp_t* rsp,
nas_establish_cnf_t* cnf)
{
int bytes;
printf("INFO\t: %s - Process NAS signalling connection establishment "
"response\n", __FUNCTION__);
// Attach_Accept
//if (rsp->nasMsg.data[7] == 0x42) {
// Activate_Default_EPS_Bearer_Context_Request.ebi = UNASSIGNED
//rsp->nasMsg.data[19] = 0x02; // UE DEBUG (Send ESM status)
// Activate_Default_EPS_Bearer_Context_Request.messagetype = WRONG_MESSAGE_TYPE
//rsp->nasMsg.data[21] = 0xc4; // MME DEBUG (Send ESM status)
//}
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment "
"Response (0x%.4x)\\nerrCode = %s, UEid = %u --->][%s]\n",
getTime(), _mme_id, msg_id,
rrcErrCode(rsp->errCode), rsp->UEid, _as_id);
_process_dump(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)rsp->nasMsg.data, rsp->nasMsg.length);
MSCGEN("[MSC_RBOX][%s][%s][%s]\n", _mme_id, _as_id, _mscgen_buffer);
// Discard Attach Accept message
//return (0); // UE DEBUG
/* Process initial NAS message */
bytes = nas_process(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)rsp->nasMsg.data,
rsp->nasMsg.length);
if (bytes < 0) {
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment "
"Confirm (0x%.4x)\\n%s ---x][%s]\n", getTime(),
_as_id, AS_NAS_ESTABLISH_CNF, _mscgen_buffer, _ue_id);
return (0);
}
/* Setup NAS signalling connection establishment confirm message */
cnf->errCode = rsp->errCode;
if (rsp->nasMsg.length > 0) {
cnf->nasMsg.data = (Byte_t*)malloc(rsp->nasMsg.length);
if (cnf->nasMsg.data) {
memcpy(cnf->nasMsg.data, rsp->nasMsg.data,
rsp->nasMsg.length);
cnf->nasMsg.length = rsp->nasMsg.length;
}
}
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Establishment "
"Confirm (0x%.4x)\\n%s --->][%s]\n", getTime(),
_as_id, AS_NAS_ESTABLISH_CNF, _mscgen_buffer, _ue_id);
printf("INFO\t: %s - Send NAS signalling connection establishment "
"confirm\n", __FUNCTION__);
return (AS_NAS_ESTABLISH_CNF);
}
/*
* -----------------------------------------------------------------------------
* Process Downlink data transfer request message
* -----------------------------------------------------------------------------
*/
int process_dl_info_transfer_req(int msg_id, const dl_info_transfer_req_t* req,
dl_info_transfer_ind_t* ind,
dl_info_transfer_cnf_t* cnf)
{
int bytes;
printf("INFO\t: %s - Process downlink data transfer request\n",
__FUNCTION__);
// Activate_default_EPS_Bearer_Context_Request.ebi = 6 (already active)
//if (req->nasMsg.data[8] == 0xC1) {
// req->nasMsg.data[6] = 0x52; // UE DEBUG (Accept with same ebi)
//}
// Deactivate_EPS_Bearer_Context_Request.ebi = UNASSIGNED
//if (req->nasMsg.data[8] == 0xCD) {
// req->nasMsg.data[6] = 0x02; // UE DEBUG
//}
MSCGEN("[MSC_MSG][%s][%s][--- Downlink Information Request "
"(0x%.4x), UEid = %u --->][%s]\n",
getTime(), _mme_id, msg_id, req->UEid, _as_id);
_process_dump(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->nasMsg.data, req->nasMsg.length);
MSCGEN("[MSC_RBOX][%s][%s][%s]\n", _mme_id, _as_id, _mscgen_buffer);
/* Process NAS message */
bytes = nas_process(_mscgen_buffer, MSCGEN_BUFFER_SIZE,
(char*)req->nasMsg.data,
req->nasMsg.length);
if (bytes < 0) {
MSCGEN("[MSC_MSG][%s][%s][--- Downlink Information Indication "
"(0x%.4x)\\n%s ---x][%s]\n", getTime(),
_as_id, AS_DL_INFO_TRANSFER_IND, _mscgen_buffer, _ue_id);
/* Setup downlink information confirmation message */
cnf->UEid = req->UEid;
cnf->errCode = AS_TERMINATED_AS;
return (0);
}
/* Setup downlink information indication message */
if (req->nasMsg.length > 0) {
ind->nasMsg.data = (Byte_t*)malloc(req->nasMsg.length);
if (ind->nasMsg.data) {
memcpy(ind->nasMsg.data, req->nasMsg.data, req->nasMsg.length);
ind->nasMsg.length = req->nasMsg.length;
}
}
/* Setup downlink information confirmation message */
cnf->UEid = req->UEid;
cnf->errCode = AS_SUCCESS;
//if (req->nasMsg.data[1] == 0x55) {
// Transmission failure of identification request message
// cnf->errCode = AS_FAILURE; // MME DEBUG
// Discard identification request message
// return (0); // MME DEBUG
//}
MSCGEN("[MSC_MSG][%s][%s][--- Downlink Information Indication "
"(0x%.4x)\\n%s --->][%s]\n", getTime(),
_as_id, AS_DL_INFO_TRANSFER_IND, _mscgen_buffer, _ue_id);
printf("INFO\t: %s - Send downlink data transfer indication\n", __FUNCTION__);
return (AS_DL_INFO_TRANSFER_IND);
}
/*
* -----------------------------------------------------------------------------
* Process NAS signalling connection release indication message
* -----------------------------------------------------------------------------
*/
int process_nas_release_ind(int msg_id, const nas_release_req_t* req,
nas_release_ind_t* ind)
{
printf("INFO\t: %s - Process NAS signalling connection release request\n",
__FUNCTION__);
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Release Request "
"(0x%.4x), UEid = %u, cause = %s (%u) --->][%s]\n",
getTime(), _mme_id, msg_id, req->UEid,
rrcReleaseCause(req->cause), req->cause, _as_id);
/* Forward NAS release indication to the UE */
ind->cause = req->cause;
MSCGEN("[MSC_MSG][%s][%s][--- NAS Signalling Connection Release Indication "
"(0x%.4x), cause = %s (%u) --->][%s]\n",
getTime(), _as_id, msg_id, rrcReleaseCause(req->cause),
ind->cause, _ue_id);
printf("INFO\t: %s - Send NAS signalling connection release indication\n",
__FUNCTION__);
return (AS_NAS_RELEASE_IND);
}
/****************************************************************************/
/********************* L O C A L F U N C T I O N S *********************/
/****************************************************************************/
/*
* -----------------------------------------------------------------------------
* Display PLMN identity
* -----------------------------------------------------------------------------
*/
static ssize_t _process_plmn(char* buffer, const plmn_t* plmn, size_t len)
{
int index = 0;
index += snprintf(buffer + index, len - index, "plmnID = %u%u%u%u%u",
plmn->MCCdigit1, plmn->MCCdigit2, plmn->MCCdigit3,
plmn->MNCdigit1, plmn->MNCdigit2);
if ( (index < len) && (plmn->MNCdigit3 != 0xf) ) {
index += snprintf(buffer + index, len - index, "%u", plmn->MNCdigit3);
}
return (index);
}
/*
* -----------------------------------------------------------------------------
* Message dump utility
* -----------------------------------------------------------------------------
*/
static int _process_dump(char* buffer, int len, const char* msg, int size)
{
int index = 0;
for (int i = 0; i < size; i++) {
if ( (i%16) == 0 ) index += snprintf(buffer + index,
len - index, "\\n");
index += snprintf(buffer + index, len - index,
" %.2hx", (unsigned char)(msg[i]));
}
buffer[index] = '\0';
return (index);
}
/*
04 01 04 10 00 00 0f 00 00 00 01 00 00 00 20 8f
10 00 22 00 00 00 07 41 71 0b f6 02 f8 01 01 02
0f 00 00 00 01 05 80 80 00 00 00 00 04 02 01 d0
31 52 02 f8 01 00 01 e0
*/
/*
U16 msgID = [04 01] - AS_NAS_ESTABLISH_REQ
U8 cause = [04] - NET_ESTABLISH_CAUSE_MO_SIGNAL
U8 type = [10] - NET_ESTABLISH_TYPE_ORIGINATING_SIGNAL
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
plmn_t plmnID = [20 8f 10]
Byte_t MCCdigit2:4 = [0]
Byte_t MCCdigit1:4 = [2]
Byte_t MNCdigit3:4 = [f]
Byte_t MCCdigit3:4 = [8]
Byte_t MNCdigit2:4 = [0]
Byte_t MNCdigit1:4 = [1]
U32 Length = [22 00 00 00] (34 octets)
U8* initialNasMsg = [07 41 71 0b f6 02 f8 01 01 02 0f 00 00 00 01 05]
[80 80 00 00 00 00 04 02 01 d0 31 52 02 f8 01 00]
[01 e0]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [41] - Attach Request
U8:4 NAS KSI = [7] - No key available
U8:4 Attach Type = [1]
EPS Mobile Identity = [0b f6 02 f8 01 01 02 0f 00 00 00 01]
Length = [0b] (11 bytes)
U8:4 = 1111 = [f]
U8:1 oddeven = 0
U8:3 typeofidentity = 110 = [6] - GUTI
U8:4 mccdigit2 = [0]
U8:4 mccdigit1 = [2]
U8:4 mncdigit3 = [f]
U8:4 mccdigit3 = [8]
U8:4 mncdigit2 = [0]
U8:4 mncdigit1 = [1]
U16 mmegroupid = [01 02]
U8 mmecode = [0f]
U32 mtmsi = [00 00 00 01]
UE network capability = [05 80 80 00 00 00]
Length = [05] (5 bytes)
U8 eea = [80] - EEA0
U8 eia = [80] - EIA0
U8 uea = [00]
U8:1 ucs2 = 0
U8:7 uia = 0000000 = [00]
U8:3 spare = 000
U8:1 csfb = 0
U8:1 lpp = 0
U8:1 lcs = 0
U8:1 srvcc = 0
U8:1 nf = 0 = [00]
ESM message container = [00 04 02 01 d0 31]
Length = [00 04] (4 bytes)
ESM message = [02 01 d0 31]
U8:4 EPS bearer identity = [0] - Not assigned
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [01]
U8 ESM message identifier = [d0] - PDN Connectivity Request
U8:4 Pdn type = [3] - IPv4v6
U8:4 Request type = [1] - Initial request
Last TAI = [52 02 f8 01 00 01] - PLMN = 20810, TAC = 00 01
Old GUTI type = [e0] - Native GUTI
*/
/*
07 04 00 00 00 00 03 00 00 00 07 44 03
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [03 00 00 00] (3 octets)
U8* NasMsg = [07 44 03]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [44] - Attach Reject
U8 EMM cause code = [03] - EMM_CAUSE_ILLEGAL_UE
*/
/*
07 04 00 00 00 00 10 00 00 00 27 ab ab ab ab 00
07 44 13 78 00 04 02 01 d1 1f
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [10 00 00 00] (16 octets)
U8* NasMsg = [27 ab ab ab ab 00 07 44 13 78 00 04 02 01 d1 1f]
U8:4 Security header type = [2] - Integrity protected and cyphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - 0
NAS message = [07 44 13 78 00 04 02 d1 1f]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [44] - Attach Reject
U8 EMM cause code = [13] - #19 ESM failure
ESM message container = [00 04 02 01 d1 1f]
U16 Length = [00 04] (4 octets)
U8* EsmMsg = [02 01 d1 1f]
U8:4 EPS bearer identity = [0] - Not assigned
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [01]
U8 ESM message identifier = [d1] - PDN Connectivity Reject
U8 ESM cause code = [1f] - REQUEST_REJECTED_UNSPECIFIED
*/
/*
04 08 01 00 00 00 46 00 00 00 27 ab ab ab ab 00
07 42 01 e0 06 24 02 f8 01 00 01 00 26 52 01 c1
05 03 48 87 40 78 0e 77 77 77 2e 65 75 72 65 63
6f 6d 2e 66 72 0d 03 c0 a8 02 3c 02 21 70 ff c0
a8 02 3c 50 0b f6 02 f8 01 01 02 0f 00 00 00 01
*/
/*
U16 msgID = [04 08] - AS_NAS_ESTABLISH_CNF
U8 errCode = [01] - SUCCESS
U32 Length = [00 00 00 46] (70 octets)
U8* NasMsg = [27 ab ab ab ab 00 07 42 01 e0 06 24 02 f8 01 00]
[01 00 26 52 01 c1 05 03 48 87 40 78 0e 77 77 77]
[2e 65 75 72 65 63 6f 6d 2e 66 72 0d 03 c0 a8 02]
[3c 02 21 70 ff c0 a8 02 3c 50 0b f6 02 f8 01 01]
[02 0f 00 00 00 01]
U8:4 Security header type = [2] - Integrity protected and cyphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - 0
NAS message = [07 42 01 e0 06 24 02 f8 01 00 01 00 26 52 01 c1]
[05 03 48 87 40 78 0e 77 77 77 2e 65 75 72 65 63]
[6f 6d 2e 66 72 0d 03 c0 a8 02 3c 02 21 70 ff c0]
[a8 02 3c 50 0b f6 02 f8 01 01 02 0f 00 00 00 01]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [42] - Attach Accept
U8:4 Spare = [0]
U8:4 EPS attach result = [1] - EPS
U8:3 T3412 unit = 111 - Deactivated
U8:5 T3412 value = 00000
TAI list = [06 24 02 f8 01 00 01]
Length = [06]
U8:1 spare = 0
U8:2 Type of list = 01 - list of TACs belonging to one PLMN,
with consecutive TAC values
U8:5 Number of elements = 0 0100 - 4 consecutive TACs
TAI = [02 f8 01 00 01] - PLMN = 20810, TAC = 00 01
ESM message container = [00 26 52 01 c1 05 03 48 87 40 78 0e 77 77 77 2e]
[65 75 72 65 63 6f 6d 2e 66 72 0d 03 c0 a8 02 3c]
[02 21 70 ff c0 a8 02 3c]
U16 Length = [00 26] (38 octets)
U8:4 EPS bearer identity = [5] - ebi = 5
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [01]
U8 ESM message identifier = [c1] - Activate Default EPS Bearer Context Request
EPS Qos = [05 03 48 87 40 78]
Length = [05] - 5 octets
QCI = [03] - 3
Maximum bit rate for uplink = [48] - 128K
Maximum bit rate for downlink = [87] - 1024K
Guaranteed bit rate for uplink = [40] - 64K
Guaranteed bit rate for downlink = [78] - 512K
Access point name = [0e 77 77 77 2e 65 75 72 65 63 6f 6d 2e 66 72]
Length = [0e] - 14 octets
APN = "www.eurecom.fr"
PDN address = [0d 03 c0 a8 02 3c 02 21 70 ff c0 a8 02 3c]
Length = [0d] - 13 octets
U8:5 Spare = 00000 - 0
U8:3 Pdn type = 011 - IPv4v6
PDN address information = [c0 a8 02 3c 02 21 70 ff c0 a8 02 3c]
*/
/*
06 01 00 00 00 00 0f 00 00 00 01 00 00 00 0d 00
00 00 27 ab ab ab ab 00 07 43 00 03 52 00 c2
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 0d] (13 octets)
U8* NasMsg = [27 ab ab ab ab 00 07 43 00 03 52 00 c2]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [07 43 00 03 52 00 c2]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [43] - Attach Complete
ESM message container = [00 03 52 00 c2]
Length = [00 03] (3 bytes)
ESM message = [52 00 c2]
U8:4 EPS bearer identity = [5] - ebi = 5
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [00] - unassigned
U8 ESM message identifier = [c2] - Activate Default EPS Bearer Context Accept
*/
/*
07 04 00 00 00 00 03 00 00 00 07 55 10
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [03 00 00 00] (3 octets)
U8* NasMsg = [07 55 10]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [55] - Identity Request
U8:4 Identity type = [1] - IMSI
U8:4 spare = [0]
*/
/*
06 01 00 00 00 00 0f 00 00 00 01 00 00 00 0b 00
00 00 07 56 08 21 80 01 0f 00 10 32 f4
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 0b] (11 octets)
U8* NasMsg = [07 56 08 21 80 01 0f 00 10 32 f4]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [56] - Identity Response
Mobile identity = [08 21 80 01 0f 00 10 32 f4]
Length = [08] - 8 octets
U8:4 Identity digit 1 = [2] - 2
U8:1 odd/even indicator = [0] - even number of identity digits
U8:3 Type of identity = [001] - IMSI
U8:4 Identity digit 3 = [8] - 8
U8:4 Identity digit 2 = [0] - 0
U8:4 Identity digit 5 = [0] - 0
U8:4 Identity digit 4 = [1] - 1
U8:4 Identity digit 7 = [0] - 0
U8:4 Identity digit 6 = [f] - f
U8:4 Identity digit 9 = [0] - 0
U8:4 Identity digit 8 = [0] - 0
U8:4 Identity digit 11 = [1] - 1
U8:4 Identity digit 10 = [0] - 0
U8:4 Identity digit 13 = [3] - 3
U8:4 Identity digit 12 = [2] - 2
U8:4 Identity digit 15 = [f] - f
U8:4 Identity digit 16 = [4] - 4
IMSI = 20810f00001234f (2081000001234)
*/
/*
07 04 00 00 00 00 24 00 00 00 07 52 00 00 00 00
00 00 00 00 00 00 00 00 00 01 02 03 04 10 00 00
00 00 00 00 80 05 04 03 02 00 00 00 00 00
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [24 00 00 00] (36 octets)
U8* NasMsg = [07 52 00 00 00 00 00 00 00 00 00 00 00 00 00 01]
[02 03 04 10 00 00 00 00 00 00 80 05 04 03 02 00]
[00 00 00 00]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [52] - Authentication Request
U8:4 NAS key set identifier = [0] - 000
U8:4 spare = [0]
RAND = [00 00 00 00 00 00 00 00 00 00 00 00 01 02 03 04]
AUTHN Length = [10] - 16 octets
AUTHN = [00 00 00 00 00 00 80 05 04 03 02 00 00 00 00 00]
*/
/*
06 01 00 00 00 00 0f 00 00 00 01 00 00 00 13 00
00 00 07 53 10 67 70 3a 31 f2 2a 2d 51 00 00 00
00 00 00 00 00
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 13] (19 octets)
U8* NasMsg = [07 53 10 67 70 3a 31 f2 2a 2d 51 00 00 00 00 00 00 00 00]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [53] - Authentication Response
RES Length = [10] - 16 octets
RES = [67 70 3a 31 f2 2a 2d 51 00 00 00 00 00 00 00 00]
*/
/*
07 04 00 00 00 00 10 00 00 00 37 ab ab ab ab 00
07 5d 00 00 05 80 80 00 00 00
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [10 00 00 00] (16 octets)
U8* NasMsg = [37 ab ab ab ab 00 07 5d 00 00 05 80 80 00 00 00]
U8:4 Security header type = [3] - Integrity protected with
new EPS security context
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - 0
NAS message = [07 5d 00 00 05 80 80 00 00 00]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [5d] - Security Mode Command
U8 Selected NAS security algorithms = [00]
U8:4 Spare half octet = [0]
U8:4 NAS key set identifier = [0]
Replayed UE security capabilities = [05 80 80 00 00 00]
U8 EEA = [80] - EEA0
U8 EIA = [80] - EIA0
U8 UEA = [00]
U8 UIA = [00]
U8 GEA = [00]
*/
/*
06 01 00 00 00 00 0f 00 00 00 01 00 00 00 08 00
00 00 47 ab ab ab ab 00 07 5e
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 08] (8 octets)
U8* NasMsg = [47 ab ab ab ab 00 07 5e]
U8:4 Security header type = [4] - Integrity protected and ciphered with
new EPS security context
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [07 5e]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [5e] - Security Mode Complete
*/
/*
06 01 00 00 00 00 0f 00 00 00 01 00 00 00 09 00
00 00 27 ab ab ab ab 00 07 5f 18
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [0f]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 09] (9 octets)
U8* NasMsg = [27 ab ab ab ab 00 07 5f 18]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [07 5f 18]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [5f] - Security Mode Reject
U8 EMM cause code = [18] - EMM_CAUSE_SECURITY_MODE_REJECTED
*/
/*
07 01 00 00 00 00 00 00 00 00 00 00 00 00 04 00
00 00 52 00 e8 6f
*/
/*
U16 msgID = [07 01] - AS_DL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [00] - !!!
U32 m_tmsi = [00 00 00 00] - !!!
U32 Length = [00 00 00 04] (4 octets)
NAS message = [52 00 e8 6f]
U8:4 EPS bearer identity = [5] - ebi = 5
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [00] - unassigned
U8 ESM message identifier = [e8] - ESM Status
U8 ESM cause code = [6f] - #111 PROTOCOL_ERROR
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 0a 00
00 00 27 ab ab ab ab 00 02 01 e8 2b
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 0a] (10 octets)
U8* NasMsg = [27 ab ab ab ab 00 02 01 e8 2b]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [02 01 e8 2b]
U8:4 EPS bearer identity = [0] - Not assigned
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [01]
U8 ESM message identifier = [e8] - ESM Status
U8 ESM cause code = [2b] - #43 INVALID_EPS_BEARER_IDENTITY
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 0a 00
00 00 27 ab ab ab ab 00 02 03 d2 06
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 0a] (10 octets)
U8* NasMsg = [27 ab ab ab ab 00 02 03 d2 06]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [02 03 d2 06]
U8:4 EPS bearer identity = [0] - Not assigned
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [03]
U8 ESM message identifier = [d2] - PDN Disconnect Request
U8:4 Spare half octet = [0]
U8:4 Linked EPS bearer identity = [6] - ebi = 6
*/
/*
06 08 00 00 00 00 01 00 00 00
*/
/*
U16 msgID = [06 08] - AS_UL_INFO_TRANSFER_CNF
U32 UEid = [00 00 00 00]
U8 errCode = [01] - SUCCESS
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 09 00
00 00 27 ab ab ab ab 00 82 00 ce
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 09] (9 octets)
U8* NasMsg = [27 ab ab ab ab 00 82 00 ce]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [82 00 ce]
U8:4 EPS bearer identity = [8] - 8
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [00]
U8 ESM message identifier = [ce] - Deactivate EPS Bearer Context Accept
*/
/*
07 01 01 00 00 00 00 00 00 00 00 00 00 00 0a 00
00 00 27 ab ab ab ab 00 62 02 cd 24
*/
/*
U16 msgID = [07 01] - AS_DL_INFO_TRANSFER_REQ
U32 UEid = [01 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [00]
U32 m_tmsi = [00 00 00 00]
U32 Length = [00 00 00 0a] (10 octets)
NAS message = [27 ab ab ab ab 00 62 02 cd 24]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [62 02 cd 24]
U8:4 EPS bearer identity = [6] - ebi = 6
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [02]
U8 ESM message identifier = [cd] - Deactivate EPS Bearer Context Request
U8 ESM cause code = [24] - #36 REGULAR_DEACTIVATION
*/
/*
04 08 01 00 00 00 00 00 00 00
*/
/*
U16 msgID = [04 08] - AS_NAS_ESTABLISH_CNF
U8 errCode = [01] - SUCCESS
U32 Length = [00 00 00 00] (0 octets)
*/
/*
07 01 01 00 00 00 00 00 00 00 00 00 00 00 0e 00
00 00 27 ab ab ab ab 00 72 00 c5 06 01 02 01 00
*/
/*
U16 msgID = [07 01] - AS_DL_INFO_TRANSFER_REQ
U32 UEid = [01 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [00]
U32 m_tmsi = [00 00 00 00]
U32 Length = [00 00 00 0e] (14 octets)
NAS message = [27 ab ab ab ab 00 72 00 c5 06 01 02 01 00]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [72 00 c5 06 00 00 00 00]
U8:4 EPS bearer identity = [7] - ebi = 7
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity - Unassigned
U8 ESM message identifier = [c5] - Activate dedicated EPS Bearer Context Request
U8:4 Spare half octet = [0]
U8:4 Linked EPS bearer identity = [6]
U8 QoS length = [01]
U8 QCI = [02]
U8 TFT length = [01]
U8 TFT = [00]
*/
/*
07 04 00 00 00 00 36 00 00 00 27 ab ab ab ab 00
72 00 c5 06 01 02 29 22 11 02 11 10 c0 a8 0c 01
ff ff ff 00 30 11 40 27 11 50 2e e1 22 03 11 10
c0 a8 0c 01 ff ff ff 00 30 11 40 27 12 50 2e e2
*/
/*
U16 msgID = [07 04] - AS_DL_INFO_TRANSFER_IND
U32 UEid = [00 00 00 00]
U32 Length = [36 00 00 00] (54 octets)
U8* NasMsg = [27 ab ab ab ab 00 72 00 c5 06 01 02 29 22 11 02]
[11 10 c0 a8 0c 01 ff ff ff 00 30 11 40 27 11 50]
[2e e1 22 03 11 10 c0 a8 0c 01 ff ff ff 00 30 11]
[40 27 12 50 2e e2]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - 0
NAS message = [72 00 c5 06 01 02 29 22 11 02 11 10 c0 a8 0c 01]
[ff ff ff 00 30 11 40 27 11 50 2e e1 22 03 11 10]
[c0 a8 0c 01 ff ff ff 00 30 11 40 27 12 50 2e e2]
U8:4 EPS bearer identity = [7] - ebi = 7
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity - Unassigned
U8 ESM message identifier = [c5] - Activate dedicated EPS Bearer Context Request
U8:4 Spare half octet = [0]
U8:4 Linked EPS bearer identity = [6]
U8 QoS length = [01] - 1 octet
U8 QCI = [02]
U8 TFT length = [29] - 41 octets
U8 TFT = [22 11 02 11 10 c0 a8 0c 01 ff ff ff 00 30 11 40]
[27 11 50 2e e1 22 03 11 10 c0 a8 0c 01 ff ff ff]
[00 30 11 40 27 12 50 2e e2]
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 0a 00
00 00 27 ab ab ab ab 00 72 00 c7 2d
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 0a] (10 octets)
U8* NasMsg = [27 ab ab ab ab 00 72 00 c7 2d]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [72 00 c7 2d]
U8:4 EPS bearer identity = [7] - 7
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [00]
U8 ESM message identifier = [c7] - Activate Dedicated EPS Bearer Context
Reject
U8 ESM cause code = [2d] - SYNTACTICAL_ERROR_IN_PACKET_FILTER
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 09 00
00 00 27 ab ab ab ab 00 72 00 c6
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 09] (9 octets)
U8* NasMsg = [27 ab ab ab ab 00 72 00 c6]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [72 00 c6]
U8:4 EPS bearer identity = [7] - 7
U8:4 Protocol discriminator = [2] - ESM message
U8 Procedure Transaction Identity = [00]
U8 ESM message identifier = [c6] - Activate Dedicated EPS Bearer Context
Accept
*/
/*
06 01 00 00 00 00 12 00 00 00 01 00 00 00 15 00
00 00 27 ab ab ab ab 00 07 45 01 0b f6 02 f8 01
01 02 12 00 00 00 01
*/
/*
U16 msgID = [06 01] - AS_UL_INFO_TRANSFER_REQ
U32 UEid = [00 00 00 00]
as_stmsi_t s_tmsi
U8 MMEcode = [12]
U32 m_tmsi = [00 00 00 01]
U32 Length = [00 00 00 15] (21 octets)
U8* NasMsg = [27 ab ab ab ab 00 07 45 01 0b f6 02 f8 01 01 02]
[12 00 00 00 01]
U8:4 Security header type = [2] - Integrity protected and ciphered
U8:4 Protocol discriminator = [7] - EMM message
U32 Message authentication code = [ab ab ab ab]
U8 Sequence number = [00] - Uplink counter value
NAS message = [07 45 01 0b f6 02 f8 01 01 02 12 00 00 00 01]
U8:4 Security header type = [0] - Not protected
U8:4 Protocol discriminator = [7] - EMM message
U8 EMM message identifier = [45] - Detach Request
U8:4 NAS key set identifier = [0] - Native 0
U8:4 Detach type = [1] - EPS Detach
Mobile identity = [0b f6 02 f8 01 01 02 12 00 00 00 01]
Length = [0b] - 11 octets
U8:4 = 1111 = [f]
U8:1 odd/even indicator = [0] - even number of identity digits
U8:3 Type of identity = [110] - GUTI
plmn = [02 f8 01] - 20810
U16 mmegroupid = [01 02]
U8 mmecode = [12]
U32 mtmsi = [00 00 00 01]
*/
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