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// XDP context struct (from BTF)
struct xdp_md {
data: u64,
data_end: u64,
data_meta: u64,
ingress_ifindex: u32,
rx_queue_index: u32,
egress_ifindex: u32,
}
// XDP action enum (from BTF)
enum xdp_action {
XDP_ABORTED = 0,
XDP_DROP = 1,
XDP_PASS = 2,
XDP_REDIRECT = 3,
XDP_TX = 4,
}
@xdp fn packet_monitor(ctx: *xdp_md) -> xdp_action {
return XDP_PASS
}
// Userspace types and functions (outside program blocks)
struct PacketStats {
total_packets: u64,
total_bytes: u64,
dropped_packets: u32,
}
struct Config {
max_packets: u64,
debug_enabled: u32,
}
fn main() -> i32 {
// Load and attach the packet monitor program
print("Loading packet monitor program")
var prog = load(packet_monitor)
attach(prog, "eth0", 0)
print("Userspace example program attached to eth0")
print("Demonstrating userspace coordination...")
// Show userspace functionality working
detach(prog)
print("Userspace example program detached")
return 0
}
fn get_packet_stats() -> u32 {
return 0
}
fn update_config() -> u32 {
return 0
}