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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2026 Isovalent */
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include "bpf_experimental.h"
#include "bpf_tracing_net.h"
#include "errno.h"
#include "ksock_common.h"
struct ksock_wq_value {
struct bpf_wq work;
};
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1);
__type(key, u32);
__type(value, struct ksock_wq_value);
} work_map SEC(".maps");
int create_err;
u32 callback_done;
static int ksock_wq_callback(void *map, int *key, void *value)
{
struct bpf_ksock_create_opts opts = {
.family = AF_INET,
.type = SOCK_DGRAM,
.protocol = IPPROTO_UDP,
};
struct bpf_ksock *ks;
int err = 0;
ks = bpf_ksock_create(&opts, sizeof(opts), &err);
if (ks)
bpf_ksock_release(ks);
create_err = err;
__sync_fetch_and_add(&callback_done, 1);
return 0;
}
SEC("syscall")
int ksock_wq_start(void *ctx)
{
struct ksock_wq_value *value;
u32 key = 0;
int err;
value = bpf_map_lookup_elem(&work_map, &key);
if (!value)
return -ENOENT;
err = bpf_wq_init(&value->work, &work_map, 0);
if (err)
return err;
err = bpf_wq_set_callback(&value->work, ksock_wq_callback, 0);
if (err)
return err;
return bpf_wq_start(&value->work, 0);
}
char __license[] SEC("license") = "GPL";
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