diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c new file mode 100644 index 000000000000..c7b8e006b171 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c @@ -0,0 +1,52 @@ +// 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; +__u32 to_add_val = 0; + +SEC("iter/bpf_sk_storage_map") +int rw_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx) +{ + struct sock *sk = ctx->sk; + __u32 *val = ctx->value; + + if (sk == NULL || val == NULL) + return 0; + + if (sk->sk_family == AF_INET6) + ipv6_sk_count++; + + val_sum += *val; + + *val += to_add_val; + + return 0; +} + +SEC("iter/bpf_sk_storage_map") +int oob_write_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx) +{ + struct sock *sk = ctx->sk; + __u32 *val = ctx->value; + + if (sk == NULL || val == NULL) + return 0; + + *(val + 1) = 0xdeadbeef; + + return 0; +} |