103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
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#include <test_progs.h>
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#include <network_helpers.h>
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#include "refcounted_kptr.skel.h"
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#include "refcounted_kptr_fail.skel.h"
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void test_refcounted_kptr(void)
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{
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RUN_TESTS(refcounted_kptr);
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}
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void test_refcounted_kptr_fail(void)
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{
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RUN_TESTS(refcounted_kptr_fail);
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}
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void test_refcounted_kptr_wrong_owner(void)
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{
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LIBBPF_OPTS(bpf_test_run_opts, opts,
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.data_in = &pkt_v4,
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.data_size_in = sizeof(pkt_v4),
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.repeat = 1,
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);
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struct refcounted_kptr *skel;
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int ret;
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skel = refcounted_kptr__open_and_load();
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if (!ASSERT_OK_PTR(skel, "refcounted_kptr__open_and_load"))
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return;
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ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_a1), &opts);
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ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_a1");
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ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_a1 retval");
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ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_b), &opts);
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ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_b");
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ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_b retval");
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ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_a2), &opts);
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ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_a2");
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ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_a2 retval");
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refcounted_kptr__destroy(skel);
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}
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void test_percpu_hash_refcounted_kptr_refcount_leak(void)
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{
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struct refcounted_kptr *skel;
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int cpu_nr, fd, err, key = 0;
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struct bpf_map *map;
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size_t values_sz;
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u64 *values;
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LIBBPF_OPTS(bpf_test_run_opts, opts,
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.data_in = &pkt_v4,
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.data_size_in = sizeof(pkt_v4),
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.repeat = 1,
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);
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cpu_nr = libbpf_num_possible_cpus();
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if (!ASSERT_GT(cpu_nr, 0, "libbpf_num_possible_cpus"))
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return;
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values = calloc(cpu_nr, sizeof(u64));
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if (!ASSERT_OK_PTR(values, "calloc values"))
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return;
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skel = refcounted_kptr__open_and_load();
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if (!ASSERT_OK_PTR(skel, "refcounted_kptr__open_and_load")) {
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free(values);
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return;
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}
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values_sz = cpu_nr * sizeof(u64);
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memset(values, 0, values_sz);
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map = skel->maps.percpu_hash;
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err = bpf_map__update_elem(map, &key, sizeof(key), values, values_sz, 0);
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if (!ASSERT_OK(err, "bpf_map__update_elem"))
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goto out;
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fd = bpf_program__fd(skel->progs.percpu_hash_refcount_leak);
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err = bpf_prog_test_run_opts(fd, &opts);
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if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
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goto out;
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if (!ASSERT_EQ(opts.retval, 2, "opts.retval"))
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goto out;
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err = bpf_map__update_elem(map, &key, sizeof(key), values, values_sz, 0);
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if (!ASSERT_OK(err, "bpf_map__update_elem"))
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goto out;
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fd = bpf_program__fd(skel->progs.check_percpu_hash_refcount);
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err = bpf_prog_test_run_opts(fd, &opts);
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ASSERT_OK(err, "bpf_prog_test_run_opts");
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ASSERT_EQ(opts.retval, 1, "opts.retval");
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out:
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refcounted_kptr__destroy(skel);
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free(values);
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}
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