gtpip.c File Reference

#include "gtpip.h"
#include "../core/logger.h"
#include "face.h"

Typedefs
typedef enum ExtractResult	ExtractResult

Enumerations
enum	ExtractResult { ExtractResultNone , ExtractResultIPv4 , ExtractResultFaceID }
enum	{   UlHdrLenBase , UlHdrLenIpv4 = UlHdrLenBase + sizeof(struct rte_ipv4_hdr) , UlHdrLenVlanIpv4 = UlHdrLenIpv4 + sizeof(struct rte_vlan_hdr) , UlHdrLenIpv6 = UlHdrLenBase + sizeof(struct rte_ipv6_hdr) ,   UlHdrLenVlanIpv6 = UlHdrLenIpv6 + sizeof(struct rte_vlan_hdr) }

Functions
	N_LOG_INIT (EthGtpip)
uint64_t	EthGtpip_ProcessDownlinkBulk (EthGtpip *g, struct rte_mbuf *pkts[], uint32_t count)
	Process downlink packets. More...
uint64_t	EthGtpip_ProcessUplinkBulk (EthGtpip *g, struct rte_mbuf *pkts[], uint32_t count)
	Process uplink packets. More...

Typedef Documentation

ExtractResult

typedef enum ExtractResult ExtractResult

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
UlHdrLenBase
UlHdrLenIpv4
UlHdrLenVlanIpv4
UlHdrLenIpv6
UlHdrLenVlanIpv6

ExtractResult

enum ExtractResult

Enumerator
ExtractResultNone
ExtractResultIPv4
ExtractResultFaceID

Function Documentation

EthGtpip_ProcessDownlinkBulk()

uint64_t EthGtpip_ProcessDownlinkBulk	(	EthGtpip *	g,
		struct rte_mbuf *	pkts[],
		uint32_t	count
	)

Process downlink packets.

Parameters

pkts	Ethernet frames received on N6 interface.
count	quantity of pkts , maximum is 64.

Returns

bitset of accepted packets.

If a packet carries IP traffic that matches a known UE in g , its Ethernet header is removed and then the packet is encapsulated in GTP-U tunnel by prepending outer Ethernet + outer IP + outer UDP + GTPv1 headers.

EthGtpip_ProcessUplinkBulk()

uint64_t EthGtpip_ProcessUplinkBulk	(	EthGtpip *	g,
		struct rte_mbuf *	pkts[],
		uint32_t	count
	)

Process uplink packets.

Parameters

pkts	Ethernet frames received on N3 interface.
count	quantity of pkts , maximum is 64.

Returns

bitset of accepted packets.

If a packet carries GTP-U traffic that matches a known UE in g , its outer Ethernet + outer IP + outer UDP + GTPv1 headers are removed, and then a new Ethernet header is prepended.

N_LOG_INIT()

N_LOG_INIT

(

EthGtpip

)