// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <test_progs.h>
#include "syscall.skel.h"

struct args {
        __u64 log_buf;
        __u32 log_size;
        int max_entries;
        int map_fd;
        int prog_fd;
        int btf_fd;
};

static void test_syscall_load_prog(void)
{
        static char verifier_log[8192];
        struct args ctx = {
                .max_entries = 1024,
                .log_buf = (uintptr_t) verifier_log,
                .log_size = sizeof(verifier_log),
        };
        LIBBPF_OPTS(bpf_test_run_opts, tattr,
                .ctx_in = &ctx,
                .ctx_size_in = sizeof(ctx),
        );
        struct syscall *skel = NULL;
        __u64 key = 12, value = 0;
        int err, prog_fd;

        skel = syscall__open_and_load();
        if (!ASSERT_OK_PTR(skel, "skel_load"))
                goto cleanup;

        prog_fd = bpf_program__fd(skel->progs.load_prog);
        err = bpf_prog_test_run_opts(prog_fd, &tattr);
        ASSERT_EQ(err, 0, "err");
        ASSERT_EQ(tattr.retval, 1, "retval");
        ASSERT_GT(ctx.map_fd, 0, "ctx.map_fd");
        ASSERT_GT(ctx.prog_fd, 0, "ctx.prog_fd");
        ASSERT_OK(memcmp(verifier_log, "processed", sizeof("processed") - 1),
                  "verifier_log");

        err = bpf_map_lookup_elem(ctx.map_fd, &key, &value);
        ASSERT_EQ(err, 0, "map_lookup");
        ASSERT_EQ(value, 34, "map lookup value");
cleanup:
        syscall__destroy(skel);
        if (ctx.prog_fd > 0)
                close(ctx.prog_fd);
        if (ctx.map_fd > 0)
                close(ctx.map_fd);
        if (ctx.btf_fd > 0)
                close(ctx.btf_fd);
}

static void test_syscall_update_outer_map(void)
{
        LIBBPF_OPTS(bpf_test_run_opts, opts);
        struct syscall *skel;
        int err, prog_fd;

        skel = syscall__open_and_load();
        if (!ASSERT_OK_PTR(skel, "skel_load"))
                goto cleanup;

        prog_fd = bpf_program__fd(skel->progs.update_outer_map);
        err = bpf_prog_test_run_opts(prog_fd, &opts);
        ASSERT_EQ(err, 0, "err");
        ASSERT_EQ(opts.retval, 1, "retval");
cleanup:
        syscall__destroy(skel);
}

void test_syscall(void)
{
        if (test__start_subtest("load_prog"))
                test_syscall_load_prog();
        if (test__start_subtest("update_outer_map"))
                test_syscall_update_outer_map();
}