ext4fs_test.c

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Author : Thomas de Grivel
Date : 2025-08-13 02:30:49
Hash : 3f9c0cf9
Message : use #include <inttypes.h>
test/ext4fs_test.c
/* ext4fs
 * Copyright 2025 kmx.io <contact@kmx.io>
 *
 * Permission is hereby granted to use this software granted the above
 * copyright notice and this permission paragraph are included in all
 * copies and substantial portions of this software.
 *
 * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
 * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
 * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
 * THIS SOFTWARE.
 */
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>

#include <ext4fs.h>
#include <crc32c.h>
#include <uuid.h>

static int    g_test_argc = 0;
static char **g_test_argv = NULL;

static long g_test_ko = 0;
static long g_test_ok = 0;
static long g_test_total = 0;

static const uint8_t g_test_bgd_data[64] = {
  0x03, 0x04, 0x00, 0x00, 0x13, 0x04, 0x00, 0x00,
  0x23, 0x04, 0x00, 0x00, 0x07, 0x5C, 0xC5, 0x1F,
  0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00,
  0xCB, 0x35, 0x02, 0x35, 0xC5, 0x1F, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x3B, 0x1D, 0x72, 0x80, 0x00, 0x00, 0x00, 0x00
};

static const uint8_t g_test_sb_data[1024] = {
  0xe0, 0xa9, 0x0e, 0x00, 0x40, 0x93, 0x3a, 0x00,
  0xc3, 0xed, 0x02, 0x00, 0x92, 0x3f, 0x39, 0x00,
  0xd5, 0xa9, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
  0xd0, 0x1f, 0x00, 0x00, 0x75, 0xfb, 0x7f, 0x68,
  0x03, 0x00, 0x80, 0x68, 0x11, 0x00, 0xff, 0xff,
  0x53, 0xef, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
  0xae, 0x9f, 0x61, 0x68, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00,
  0x00, 0x01, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00,
  0xc2, 0x02, 0x00, 0x00, 0x6b, 0x04, 0x00, 0x00,
  0x31, 0x88, 0xb7, 0x06, 0xd0, 0xcb, 0x42, 0x1f,
  0xb9, 0x61, 0xd9, 0x13, 0x63, 0xe4, 0x41, 0x58,
  0x65, 0x78, 0x74, 0x34, 0x66, 0x73, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x5e, 0x68, 0x93, 0x7f,
  0x43, 0x87, 0x4f, 0xae, 0x93, 0x67, 0xc0, 0x02,
  0x89, 0xeb, 0x8f, 0x55, 0x01, 0x01, 0x40, 0x00,
  0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0xae, 0x9f, 0x61, 0x68, 0x0a, 0xf3, 0x01, 0x00,
  0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
  0x03, 0x84, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x20, 0x00,
  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x04, 0x01, 0x00, 0x00,
  0xb9, 0xbd, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0xa8, 0x53, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x9f, 0xe2, 0xac, 0xe3
};
  
#define TEST_ASSERT(test)                       \
  do {                                          \
    if (! (test)) {                             \
      fprintf(stderr, "KO: %s\n", # test);      \
      g_test_ko++;                              \
      g_test_total++;                           \
    }                                           \
    else {                                      \
      g_test_ok++;                              \
      g_test_total++;                           \
    }                                           \
  } while (0)

#define TEST_EQ(test, expected)                                         \
  do {                                                                  \
    int64_t i_test = (test);                                            \
    int64_t i_expected = (expected);                                    \
    if (! ((i_test) == (i_expected))) {                                 \
      fprintf(stderr, "KO: expected %s == %" PRId64 ", got %" PRId64    \
              " instead\n",                                             \
              # test, i_expected, i_test);                              \
      g_test_ko++;                                                      \
      g_test_total++;                                                   \
    }                                                                   \
    else {                                                              \
      g_test_ok++;                                                      \
      g_test_total++;                                                   \
    }                                                                   \
  } while (0)

void test_summary (void)
{
  fflush(stdout);
  fprintf(stderr, "OK: %ld\tKO: %ld\tTotal: %ld\n",
          g_test_ok, g_test_ko, g_test_total);
  fflush(stderr);
}

void test_crc32c (void)
{
  uint8_t b[32] = {0};
  uint32_t u32 = 0;
  TEST_EQ(crc32c(0, &u32, 4), 0x48674BC7U);
  TEST_EQ(crc32c(0, b, sizeof(b)), 0x8A9136AAU);
  memset(b, -1, sizeof(b));
  TEST_EQ(crc32c(0, b, sizeof(b)), 0x62A8AB43U);
  TEST_EQ(crc32c(0, "123456789", 9), 0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "1", 1), "23456789", 8),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "12", 2), "3456789", 7),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "123", 3), "456789", 6),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "1234", 4), "56789", 5),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "12345", 5), "6789", 4),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "123456", 6), "789", 3),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "1234567", 7), "89", 2),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(0, "12345678", 8), "9", 1),
          0xE3069283U);
  TEST_EQ(crc32c(crc32c(crc32c(0, "123", 3), "456", 3), "789", 3),
          0xE3069283U);
}

void test_bgd (void)
{
  struct ext4fs_super_block sb = {0};
  struct ext4fs_block_group_descriptor bgd = {0};
  uint16_t                             bgd_checksum = 0;
  TEST_EQ(offsetof(struct ext4fs_block_group_descriptor, bgd_checksum),
          0x1E);
  TEST_EQ(sizeof(struct ext4fs_block_group_descriptor),
          64);
  memcpy(&sb, g_test_sb_data, sizeof(sb));
  memcpy(&bgd, g_test_bgd_data, sizeof(bgd));
  TEST_EQ(ext4fs_bgd_checksum_compute(&sb, &bgd, 0, &bgd_checksum), 0);
  TEST_EQ(bgd_checksum, 0x7E71U);
}

void test_inode (void)
{
  TEST_EQ(offsetof(struct ext4fs_inode, i_mode), 0);
  TEST_EQ(offsetof(struct ext4fs_inode, i_mtime), 0x10);
  TEST_EQ(offsetof(struct ext4fs_inode, i_flags), 0x20);
  TEST_EQ(offsetof(struct ext4fs_inode, i_nfs_generation), 0x64);
  TEST_EQ(offsetof(struct ext4fs_inode, i_fragment_address), 0x70);
  TEST_EQ(offsetof(struct ext4fs_inode, i_extra_isize), 0x80);
  TEST_EQ(sizeof(struct ext4fs_inode), 0xA0);
  TEST_EQ(sizeof(struct ext4fs_inode_256), 256);
}

void test_sb (void)
{
  struct ext4fs_super_block sb = {0};
  uint32_t                  sb_checksum;
  TEST_EQ(offsetof(struct ext4fs_super_block, sb_default_mount_opts),
          0x100);
  TEST_EQ(offsetof(struct ext4fs_super_block, sb_mount_opts), 0x200);
  TEST_EQ(offsetof(struct ext4fs_super_block, sb_orphan_file_inode),
          0x280);
  TEST_EQ(offsetof(struct ext4fs_super_block, sb_checksum), 0x3FC);
  TEST_EQ(sizeof(sb.sb_uuid), 16);
  TEST_EQ(sizeof(struct ext4fs_super_block), 1024);
  memcpy(&sb, g_test_sb_data, sizeof(sb));
  TEST_EQ(ext4fs_sb_checksum_compute(&sb, &sb_checksum), 0);
  TEST_EQ(sb_checksum, 0xE3ACE29FU);
}

#define TEST_CASE_RUN(name)                            \
  do {                                                 \
    int i = 1;                                         \
    if (g_test_argc == 1)                              \
      test_ ## name();                                 \
    else {                                             \
      while (i < g_test_argc) {                       \
        if (! strcmp(g_test_argv[i], # name)) {        \
          test_ ## name();                             \
          break;                                       \
        }                                              \
        i++;                                           \
      }                                                \
    }                                                  \
  } while (0)

int main (int argc, char **argv)
{
  g_test_argc = argc;
  g_test_argv = argv;
  TEST_CASE_RUN(crc32c);
  TEST_CASE_RUN(sb);
  TEST_CASE_RUN(bgd);
  TEST_CASE_RUN(inode);
  test_summary();
  return g_test_ko ? 1 : 0;
}
thodg/ext4fs/test/ext4fs_test.c

Commit

thodg/ext4fs /test/ext4fs_test.c
