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// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_trace_helpers.h"
struct net_device {
/* Structure does not need to contain all entries,
* as "preserve_access_index" will use BTF to fix this...
*/
int ifindex;
} __attribute__((preserve_access_index));
struct xdp_rxq_info {
/* Structure does not need to contain all entries,
* as "preserve_access_index" will use BTF to fix this...
*/
struct net_device *dev;
__u32 queue_index;
} __attribute__((preserve_access_index));
struct xdp_buff {
void *data;
void *data_end;
void *data_meta;
void *data_hard_start;
unsigned long handle;
struct xdp_rxq_info *rxq;
} __attribute__((preserve_access_index));
__u64 test_result_fentry = 0;
SEC("fentry/_xdp_tx_iptunnel")
int BPF_PROG(trace_on_entry, struct xdp_buff *xdp)
{
test_result_fentry = xdp->rxq->dev->ifindex;
return 0;
}
__u64 test_result_fexit = 0;
SEC("fexit/_xdp_tx_iptunnel")
int BPF_PROG(trace_on_exit, struct xdp_buff *xdp, int ret)
{
test_result_fexit = ret;
return 0;
}
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