Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Ahern |
182 |
97.85% |
1 |
25.00% |
| Jesper Dangaard Brouer |
2 |
1.08% |
2 |
50.00% |
| Andrii Nakryiko |
2 |
1.08% |
1 |
25.00% |
| Total |
186 |
|
4 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
struct {
__uint(type, BPF_MAP_TYPE_DEVMAP);
__uint(key_size, sizeof(__u32));
__uint(value_size, sizeof(struct bpf_devmap_val));
__uint(max_entries, 4);
} dm_ports SEC(".maps");
SEC("xdp")
int xdp_redir_prog(struct xdp_md *ctx)
{
return bpf_redirect_map(&dm_ports, 1, 0);
}
/* invalid program on DEVMAP entry;
* SEC name means expected attach type not set
*/
SEC("xdp")
int xdp_dummy_prog(struct xdp_md *ctx)
{
return XDP_PASS;
}
/* valid program on DEVMAP entry via SEC name;
* has access to egress and ingress ifindex
*/
SEC("xdp_devmap/map_prog")
int xdp_dummy_dm(struct xdp_md *ctx)
{
char fmt[] = "devmap redirect: dev %u -> dev %u len %u\n";
void *data_end = (void *)(long)ctx->data_end;
void *data = (void *)(long)ctx->data;
unsigned int len = data_end - data;
bpf_trace_printk(fmt, sizeof(fmt),
ctx->ingress_ifindex, ctx->egress_ifindex, len);
return XDP_PASS;
}
char _license[] SEC("license") = "GPL";