int
encode_short_mac (
ShortMac * shortmac,
uint8_t iei,
uint8_t * buffer,
uint32_t len)
{
uint32_t encoded = 0;
/*
* Checking IEI and pointer
*/
CHECK_PDU_POINTER_AND_LENGTH_ENCODER (buffer, SHORT_MAC_MINIMUM_LENGTH, len);
#if NAS_DEBUG
dump_short_mac_xml (shortmac, iei);
#endif
if (iei > 0) {
*buffer = iei;
encoded++;
}
IES_ENCODE_U16 (buffer, encoded, *shortmac);
return encoded;
}
int encode_location_area_identification(LocationAreaIdentification *locationareaidentification, uint8_t iei, uint8_t *buffer, uint32_t len)
{
uint32_t encoded = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, LOCATION_AREA_IDENTIFICATION_MINIMUM_LENGTH, len);
#if defined (NAS_DEBUG)
dump_location_area_identification_xml(locationareaidentification, iei);
#endif
if (iei > 0)
{
*buffer = iei;
encoded++;
}
*(buffer + encoded) = 0x00 | ((locationareaidentification->mccdigit2 & 0xf) << 4) |
(locationareaidentification->mccdigit1 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((locationareaidentification->mncdigit3 & 0xf) << 4) |
(locationareaidentification->mccdigit3 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((locationareaidentification->mncdigit2 & 0xf) << 4) |
(locationareaidentification->mncdigit1 & 0xf);
encoded++;
IES_ENCODE_U16(buffer, encoded, locationareaidentification->lac);
return encoded;
}
int encode_tracking_area_identity_list(TrackingAreaIdentityList *trackingareaidentitylist, uint8_t iei, uint8_t *buffer, uint32_t len)
{
uint8_t *lenPtr;
uint32_t encoded = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, TRACKING_AREA_IDENTITY_LIST_MINIMUM_LENGTH, len);
#if defined (NAS_DEBUG)
dump_tracking_area_identity_list_xml(trackingareaidentitylist, iei);
#endif
if (iei > 0) {
*buffer = iei;
encoded++;
}
lenPtr = (buffer + encoded);
encoded ++;
*(buffer + encoded) = 0x00 |
((trackingareaidentitylist->typeoflist & 0x3) << 5) |
(trackingareaidentitylist->numberofelements & 0x1f);
encoded++;
*(buffer + encoded) = 0x00 | ((trackingareaidentitylist->mccdigit2 & 0xf) << 4) |
(trackingareaidentitylist->mccdigit1 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((trackingareaidentitylist->mncdigit3 & 0xf) << 4) |
(trackingareaidentitylist->mccdigit3 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((trackingareaidentitylist->mncdigit2 & 0xf) << 4) |
(trackingareaidentitylist->mncdigit1 & 0xf);
encoded++;
IES_ENCODE_U16(buffer, encoded, trackingareaidentitylist->tac);
*lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
return encoded;
}
int encode_tracking_area_identity(TrackingAreaIdentity *trackingareaidentity, uint8_t iei, uint8_t *buffer, uint32_t len)
{
uint32_t encoded = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, TRACKING_AREA_IDENTITY_MINIMUM_LENGTH, len);
#if defined (NAS_DEBUG)
dump_tracking_area_identity_xml(trackingareaidentity, iei);
#endif
if (iei > 0) {
*buffer = iei;
encoded++;
}
*(buffer + encoded) = 0x00 | ((trackingareaidentity->mccdigit2 & 0xf) << 4) |
(trackingareaidentity->mccdigit1 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((trackingareaidentity->mncdigit3 & 0xf) << 4) |
(trackingareaidentity->mccdigit3 & 0xf);
encoded++;
*(buffer + encoded) = 0x00 | ((trackingareaidentity->mncdigit2 & 0xf) << 4) |
(trackingareaidentity->mncdigit1 & 0xf);
encoded++;
IES_ENCODE_U16(buffer, encoded, trackingareaidentity->tac);
return encoded;
}
static int encode_traffic_flow_template_packet_filters(PacketFilters* packetfilters, uint8_t nbpacketfilters, uint8_t *buffer, uint32_t len)
{
int encoded = 0, i, j;
for (i = 0; (i < nbpacketfilters) && (len - encoded > 0); i++)
{
if (len - encoded <= 0) {
/* Mismatch between the number of packet filters subfield,
* and the number of packet filters in the packet filter list */
return (TLV_DECODE_VALUE_DOESNT_MATCH);
}
/* Packet filter identifier and direction */
IES_ENCODE_U8(buffer, encoded, (0x00 | ((*packetfilters)[i].direction << 4) | ((*packetfilters)[i].identifier)));
/* Packet filter evaluation precedence */
IES_ENCODE_U8(buffer, encoded, (*packetfilters)[i].eval_precedence);
/* Save address of the Packet filter contents field length */
uint8_t* pkflenPtr = buffer + encoded;
encoded++;
/* Packet filter contents */
int pkfstart = encoded;
uint16_t flag = TRAFFIC_FLOW_TEMPLATE_IPV4_REMOTE_ADDR_FLAG;
while (flag <= TRAFFIC_FLOW_TEMPLATE_FLOW_LABEL_FLAG)
{
switch ((*packetfilters)[i].packetfilter.flags & flag)
{
case TRAFFIC_FLOW_TEMPLATE_IPV4_REMOTE_ADDR_FLAG:
/* IPv4 remote address type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_IPV4_REMOTE_ADDR);
for (j = 0; j < TRAFFIC_FLOW_TEMPLATE_IPV4_ADDR_SIZE; j++)
{
*(buffer + encoded) = (*packetfilters)[i].packetfilter.ipv4remoteaddr[j].addr;
*(buffer + encoded + TRAFFIC_FLOW_TEMPLATE_IPV4_ADDR_SIZE) = (*packetfilters)[i].packetfilter.ipv4remoteaddr[j].mask;
encoded++;
}
encoded += TRAFFIC_FLOW_TEMPLATE_IPV4_ADDR_SIZE;
break;
case TRAFFIC_FLOW_TEMPLATE_IPV6_REMOTE_ADDR_FLAG:
/* IPv6 remote address type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_IPV6_REMOTE_ADDR);
for (j = 0; j < TRAFFIC_FLOW_TEMPLATE_IPV6_ADDR_SIZE; j++)
{
*(buffer + encoded) = (*packetfilters)[i].packetfilter.ipv6remoteaddr[j].addr;
*(buffer + encoded + TRAFFIC_FLOW_TEMPLATE_IPV6_ADDR_SIZE) = (*packetfilters)[i].packetfilter.ipv6remoteaddr[j].mask;
encoded++;
}
encoded += TRAFFIC_FLOW_TEMPLATE_IPV6_ADDR_SIZE;
break;
case TRAFFIC_FLOW_TEMPLATE_PROTOCOL_NEXT_HEADER_FLAG:
/* Protocol identifier/Next header type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_PROTOCOL_NEXT_HEADER);
IES_ENCODE_U8(buffer, encoded, (*packetfilters)[i].packetfilter.protocolidentifier_nextheader);
break;
case TRAFFIC_FLOW_TEMPLATE_SINGLE_LOCAL_PORT_FLAG:
/* Single local port type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_SINGLE_LOCAL_PORT);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.singlelocalport);
break;
case TRAFFIC_FLOW_TEMPLATE_LOCAL_PORT_RANGE_FLAG:
/* Local port range type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_LOCAL_PORT_RANGE);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.localportrange.lowlimit);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.localportrange.highlimit);
break;
case TRAFFIC_FLOW_TEMPLATE_SINGLE_REMOTE_PORT_FLAG:
/* Single remote port type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_SINGLE_REMOTE_PORT);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.singleremoteport);
break;
case TRAFFIC_FLOW_TEMPLATE_REMOTE_PORT_RANGE_FLAG:
/* Remote port range type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_REMOTE_PORT_RANGE);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.remoteportrange.lowlimit);
IES_ENCODE_U16(buffer, encoded, (*packetfilters)[i].packetfilter.remoteportrange.highlimit);
break;
case TRAFFIC_FLOW_TEMPLATE_SECURITY_PARAMETER_INDEX_FLAG:
/* Security parameter index type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_SECURITY_PARAMETER_INDEX);
IES_ENCODE_U32(buffer, encoded, (*packetfilters)[i].packetfilter.securityparameterindex);
break;
case TRAFFIC_FLOW_TEMPLATE_TYPE_OF_SERVICE_TRAFFIC_CLASS_FLAG:
/* Type of service/Traffic class type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_TYPE_OF_SERVICE_TRAFFIC_CLASS);
IES_ENCODE_U8(buffer, encoded, (*packetfilters)[i].packetfilter.typdeofservice_trafficclass.value);
IES_ENCODE_U8(buffer, encoded, (*packetfilters)[i].packetfilter.typdeofservice_trafficclass.mask);
break;
case TRAFFIC_FLOW_TEMPLATE_FLOW_LABEL_FLAG:
/* Flow label type */
IES_ENCODE_U8(buffer, encoded, TRAFFIC_FLOW_TEMPLATE_FLOW_LABEL);
IES_ENCODE_U24(buffer, encoded, (*packetfilters)[i].packetfilter.flowlabel & 0x000fffff);
break;
default:
break;
}
flag = flag << 1;
}
/* Length of the Packet filter contents field */
*pkflenPtr = encoded - pkfstart;
}
return encoded;
}
