| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2020 Facebook */ |
| #include "bpf_iter.h" |
| #include "bpf_tracing_net.h" |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/bpf_tracing.h> |
| |
| char _license[] SEC("license") = "GPL"; |
| |
| struct { |
| __uint(type, BPF_MAP_TYPE_SK_STORAGE); |
| __uint(map_flags, BPF_F_NO_PREALLOC); |
| __type(key, int); |
| __type(value, int); |
| } sk_stg_map SEC(".maps"); |
| |
| __u32 val_sum = 0; |
| __u32 ipv6_sk_count = 0; |
| |
| SEC("iter/bpf_sk_storage_map") |
| int dump_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx) |
| { |
| struct sock *sk = ctx->sk; |
| __u32 *val = ctx->value; |
| |
| if (sk == (void *)0 || val == (void *)0) |
| return 0; |
| |
| if (sk->sk_family == AF_INET6) |
| ipv6_sk_count++; |
| |
| val_sum += *val; |
| return 0; |
| } |