From 5ac93074b581984d67926d48b2c601b12b35a0f9 Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Tue, 15 Oct 2019 23:00:50 -0700 Subject: selftests/bpf: Move test_queue_stack_map.h into progs/ where it belongs test_queue_stack_map.h is used only from BPF programs. Thus it should be part of progs/ subdir. An added benefit of moving it there is that new TEST_RUNNER_DEFINE_RULES macro-rule will properly capture dependency on this header for all BPF objects and trigger re-build, if it changes. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20191016060051.2024182-7-andriin@fb.com --- .../selftests/bpf/progs/test_queue_stack_map.h | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/test_queue_stack_map.h (limited to 'tools/testing/selftests/bpf/progs/test_queue_stack_map.h') diff --git a/tools/testing/selftests/bpf/progs/test_queue_stack_map.h b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h new file mode 100644 index 000000000000..0e014d3b2b36 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +// Copyright (c) 2018 Politecnico di Torino +#include +#include +#include +#include +#include +#include +#include "bpf_helpers.h" + +int _version SEC("version") = 1; + +struct { + __uint(type, MAP_TYPE); + __uint(max_entries, 32); + __uint(map_flags, 0); + __uint(key_size, 0); + __uint(value_size, sizeof(__u32)); +} map_in SEC(".maps"); + +struct { + __uint(type, MAP_TYPE); + __uint(max_entries, 32); + __uint(map_flags, 0); + __uint(key_size, 0); + __uint(value_size, sizeof(__u32)); +} map_out SEC(".maps"); + +SEC("test") +int _test(struct __sk_buff *skb) +{ + void *data_end = (void *)(long)skb->data_end; + void *data = (void *)(long)skb->data; + struct ethhdr *eth = (struct ethhdr *)(data); + __u32 value; + int err; + + if (eth + 1 > data_end) + return TC_ACT_SHOT; + + struct iphdr *iph = (struct iphdr *)(eth + 1); + + if (iph + 1 > data_end) + return TC_ACT_SHOT; + + err = bpf_map_pop_elem(&map_in, &value); + if (err) + return TC_ACT_SHOT; + + iph->daddr = value; + + err = bpf_map_push_elem(&map_out, &iph->saddr, 0); + if (err) + return TC_ACT_SHOT; + + return TC_ACT_OK; +} + +char _license[] SEC("license") = "GPL"; -- cgit