DPDK  20.11.6
examples/bpf/t2.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Intel Corporation
*/
/*
* eBPF program sample.
* Accepts pointer to struct rte_mbuf as an input parameter.
* cleanup mbuf's vlan_tci and all related RX flags
* (PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED).
* Doesn't touch contents of packet data.
* To compile:
* clang -O2 -target bpf -Wno-int-to-void-pointer-cast -c t2.c
*
* NOTE: if DPDK is not installed system-wide, add compiler flag with path
* to DPDK rte_mbuf.h file, e.g. "clang -I/path/to/dpdk/headers -O2 ..."
*/
#include <stdint.h>
#include <stddef.h>
#include <rte_config.h>
#include <rte_mbuf_core.h>
uint64_t
entry(void *pkt)
{
struct rte_mbuf *mb;
mb = pkt;
mb->vlan_tci = 0;
return 1;
}