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// SPDX-License-Identifier: GPL-2.0
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
char _license[] SEC("license") = "GPL";
int pid = 0;
bool test_cookies = false;
/* bpf_fentry_test1 is exported as kfunc via vmlinux.h */
extern const void bpf_fentry_test2 __ksym;
extern const void bpf_fentry_test3 __ksym;
extern const void bpf_fentry_test4 __ksym;
extern const void bpf_fentry_test5 __ksym;
extern const void bpf_fentry_test6 __ksym;
extern const void bpf_fentry_test7 __ksym;
extern const void bpf_fentry_test8 __ksym;
extern const void bpf_fentry_test9 __ksym;
extern const void bpf_fentry_test10 __ksym;
extern const void bpf_testmod_fentry_test1 __ksym;
extern const void bpf_testmod_fentry_test2 __ksym;
extern const void bpf_testmod_fentry_test3 __ksym;
extern const void bpf_testmod_fentry_test7 __ksym;
extern const void bpf_testmod_fentry_test11 __ksym;
int tracing_multi_arg_check(__u64 *ctx, __u64 *test_result, bool is_return)
{
void *ip = (void *) bpf_get_func_ip(ctx);
__u64 value = 0, ret = 0, cookie = 0;
long err = 0;
if (bpf_get_current_pid_tgid() >> 32 != pid)
return 1;
if (is_return)
err |= bpf_get_func_ret(ctx, &ret);
if (test_cookies)
cookie = bpf_get_attach_cookie(ctx);
if (ip == &bpf_fentry_test1) {
int a;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (int) value;
err |= is_return ? ret != 2 : 0;
err |= test_cookies ? cookie != 8 : 0;
*test_result += err == 0 && a == 1;
} else if (ip == &bpf_fentry_test2) {
__u64 b;
int a;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (int) value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = value;
err |= is_return ? ret != 5 : 0;
err |= test_cookies ? cookie != 9 : 0;
*test_result += err == 0 && a == 2 && b == 3;
} else if (ip == &bpf_fentry_test3) {
__u64 c;
char a;
int b;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (char) value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (int) value;
err |= bpf_get_func_arg(ctx, 2, &value);
c = value;
err |= is_return ? ret != 15 : 0;
err |= test_cookies ? cookie != 7 : 0;
*test_result += err == 0 && a == 4 && b == 5 && c == 6;
} else if (ip == &bpf_fentry_test4) {
void *a;
char b;
int c;
__u64 d;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (void *) value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (char) value;
err |= bpf_get_func_arg(ctx, 2, &value);
c = (int) value;
err |= bpf_get_func_arg(ctx, 3, &value);
d = value;
err |= is_return ? ret != 34 : 0;
err |= test_cookies ? cookie != 5 : 0;
*test_result += err == 0 && a == (void *) 7 && b == 8 && c == 9 && d == 10;
} else if (ip == &bpf_fentry_test5) {
__u64 a;
void *b;
short c;
int d;
__u64 e;
err |= bpf_get_func_arg(ctx, 0, &value);
a = value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (void *) value;
err |= bpf_get_func_arg(ctx, 2, &value);
c = (short) value;
err |= bpf_get_func_arg(ctx, 3, &value);
d = (int) value;
err |= bpf_get_func_arg(ctx, 4, &value);
e = value;
err |= is_return ? ret != 65 : 0;
err |= test_cookies ? cookie != 4 : 0;
*test_result += err == 0 && a == 11 && b == (void *) 12 && c == 13 && d == 14 && e == 15;
} else if (ip == &bpf_fentry_test6) {
__u64 a;
void *b;
short c;
int d;
void *e;
__u64 f;
err |= bpf_get_func_arg(ctx, 0, &value);
a = value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (void *) value;
err |= bpf_get_func_arg(ctx, 2, &value);
c = (short) value;
err |= bpf_get_func_arg(ctx, 3, &value);
d = (int) value;
err |= bpf_get_func_arg(ctx, 4, &value);
e = (void *) value;
err |= bpf_get_func_arg(ctx, 5, &value);
f = value;
err |= is_return ? ret != 111 : 0;
err |= test_cookies ? cookie != 2 : 0;
*test_result += err == 0 && a == 16 && b == (void *) 17 && c == 18 && d == 19 && e == (void *) 20 && f == 21;
} else if (ip == &bpf_fentry_test7) {
err |= is_return ? ret != 0 : 0;
err |= test_cookies ? cookie != 3 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test8) {
err |= is_return ? ret != 0 : 0;
err |= test_cookies ? cookie != 1 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test9) {
err |= is_return ? ret != 0 : 0;
err |= test_cookies ? cookie != 10 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_fentry_test10) {
err |= is_return ? ret != 0 : 0;
err |= test_cookies ? cookie != 6 : 0;
*test_result += err == 0 ? 1 : 0;
} else if (ip == &bpf_testmod_fentry_test1) {
int a;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (int) value;
err |= is_return ? ret != 2 : 0;
*test_result += err == 0 && a == 1;
} else if (ip == &bpf_testmod_fentry_test2) {
int a;
__u64 b;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (int) value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (__u64) value;
err |= is_return ? ret != 5 : 0;
*test_result += err == 0 && a == 2 && b == 3;
} else if (ip == &bpf_testmod_fentry_test3) {
char a;
int b;
__u64 c;
err |= bpf_get_func_arg(ctx, 0, &value);
a = (char) value;
err |= bpf_get_func_arg(ctx, 1, &value);
b = (int) value;
err |= bpf_get_func_arg(ctx, 2, &value);
c = (__u64) value;
err |= is_return ? ret != 15 : 0;
*test_result += err == 0 && a == 4 && b == 5 && c == 6;
} else if (ip == &bpf_testmod_fentry_test7) {
err |= is_return ? ret != 133 : 0;
*test_result += err == 0;
} else if (ip == &bpf_testmod_fentry_test11) {
err |= is_return ? ret != 231 : 0;
*test_result += err == 0;
}
return 0;
}
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