76 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2020 Facebook */3 4#include <test_progs.h>5#include <time.h>6#include "test_varlen.skel.h"7 8#define CHECK_VAL(got, exp) \9 CHECK((got) != (exp), "check", "got %ld != exp %ld\n", \10 (long)(got), (long)(exp))11 12void test_varlen(void)13{14 int duration = 0, err;15 struct test_varlen* skel;16 struct test_varlen__bss *bss;17 struct test_varlen__data *data;18 const char str1[] = "Hello, ";19 const char str2[] = "World!";20 const char exp_str[] = "Hello, \0World!\0";21 const int size1 = sizeof(str1);22 const int size2 = sizeof(str2);23 24 skel = test_varlen__open_and_load();25 if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))26 return;27 bss = skel->bss;28 data = skel->data;29 30 err = test_varlen__attach(skel);31 if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))32 goto cleanup;33 34 bss->test_pid = getpid();35 36 /* trigger everything */37 memcpy(bss->buf_in1, str1, size1);38 memcpy(bss->buf_in2, str2, size2);39 bss->capture = true;40 usleep(1);41 bss->capture = false;42 43 CHECK_VAL(bss->payload1_len1, size1);44 CHECK_VAL(bss->payload1_len2, size2);45 CHECK_VAL(bss->total1, size1 + size2);46 CHECK(memcmp(bss->payload1, exp_str, size1 + size2), "content_check",47 "doesn't match!\n");48 49 CHECK_VAL(data->payload2_len1, size1);50 CHECK_VAL(data->payload2_len2, size2);51 CHECK_VAL(data->total2, size1 + size2);52 CHECK(memcmp(data->payload2, exp_str, size1 + size2), "content_check",53 "doesn't match!\n");54 55 CHECK_VAL(data->payload3_len1, size1);56 CHECK_VAL(data->payload3_len2, size2);57 CHECK_VAL(data->total3, size1 + size2);58 CHECK(memcmp(data->payload3, exp_str, size1 + size2), "content_check",59 "doesn't match!\n");60 61 CHECK_VAL(data->payload4_len1, size1);62 CHECK_VAL(data->payload4_len2, size2);63 CHECK_VAL(data->total4, size1 + size2);64 CHECK(memcmp(data->payload4, exp_str, size1 + size2), "content_check",65 "doesn't match!\n");66 67 CHECK_VAL(bss->ret_bad_read, -EFAULT);68 CHECK_VAL(data->payload_bad[0], 0x42);69 CHECK_VAL(data->payload_bad[1], 0x42);70 CHECK_VAL(data->payload_bad[2], 0);71 CHECK_VAL(data->payload_bad[3], 0x42);72 CHECK_VAL(data->payload_bad[4], 0x42);73cleanup:74 test_varlen__destroy(skel);75}76