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testmod_mmapstorage.c
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testmod_mmapstorage.c
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/**
* @file
*
* @brief Tests for mmapstorage plugin
*
* @copyright BSD License (see LICENSE.md or https://www.libelektra.org)
*
*/
#define _XOPEN_SOURCE 600
/* -- Imports --------------------------------------------------------------------------------------------------------------------------- */
#include <fcntl.h> // fcntl(), open()
#include <stdio.h> // fopen(), fileno()
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h> // mmap()
#include <sys/stat.h> // stat(), chmod()
#include <sys/types.h> // ftruncate ()
#include <sys/wait.h> // waitpit()
#include <unistd.h> // ftruncate(), pipe(), fork()
#include <kdbconfig.h>
#include <kdbprivate.h>
#include <tests_plugin.h>
#include "dynarray.h"
#include "internal.h"
#include "mmapstorage.h"
/* -- Macros ---------------------------------------------------------------------------------------------------------------------------- */
#define KEY_NAME_LENGTH 1000
#define NUM_DIR 10
#define NUM_KEY 100
#define TEST_ROOT_KEY "user:/tests/mmapstorage"
/* -- KeySet test data ------------------------------------------------------------------------------------------------------------------ */
static KeySet * simpleTestKeySet (void)
{
return ksNew (10, keyNew ("user:/tests/mmapstorage/simpleKey", KEY_VALUE, "root key", KEY_END),
keyNew ("user:/tests/mmapstorage/simpleKey/a", KEY_VALUE, "a value", KEY_END),
keyNew ("user:/tests/mmapstorage/simpleKey/b", KEY_VALUE, "b value", KEY_END), KS_END);
}
static KeySet * metaTestKeySet (void)
{
return ksNew (10,
keyNew ("user:/tests/mmapstorage", KEY_VALUE, "root key", KEY_META, "a",
"b aksdjfh aksjdhf aklsjdhf aksljdhf aklsjdhf aksljdhf ", KEY_END),
keyNew ("user:/tests/mmapstorage/a", KEY_VALUE, "a value", KEY_META, "ab",
"cd oiahsdkfhga sdjkfhgsuzdgf kashgdf aszgdf uashdf ", KEY_END),
keyNew ("user:/tests/mmapstorage/b", KEY_VALUE, "b value", KEY_META, "longer val",
"here some even more with ugly €@\\1¹²³¼ chars", KEY_END),
KS_END);
}
typedef struct _binaryTest
{
size_t A_size;
ssize_t B_ssize;
} BinaryTest;
static BinaryTest binaryTestA = { .A_size = SIZE_MAX, .B_ssize = -1 };
static KeySet * otherMetaTestKeySet (void)
{
return ksNew (
10, keyNew ("user:/tests/mmapstorage", KEY_VALUE, "root key", KEY_META, "e", "other meta root", KEY_END),
keyNew ("user:/tests/mmapstorage/f", KEY_VALUE, "f value", KEY_META, "foo", "some other key in the other meta keyset",
KEY_END),
keyNew ("user:/tests/mmapstorage/i", KEY_VALUE, "i value", KEY_META, "i is quite valuable", "happy data is happy :)",
KEY_END),
keyNew ("user:/tests/mmapstorage/j/k/l", KEY_VALUE, "jkl value", KEY_META, "where is everyone?", "don't panic", KEY_END),
keyNew ("user:/tests/mmapstorage/m", KEY_BINARY, KEY_SIZE, sizeof (BinaryTest), KEY_VALUE, &(binaryTestA), KEY_END),
KS_END);
}
static KeySet * largeTestKeySet (void)
{
int i, j;
char name[KEY_NAME_LENGTH + 1];
char value[] = "data";
KeySet * large = ksNew (NUM_KEY * NUM_DIR, KS_END);
for (i = 0; i < NUM_DIR; i++)
{
snprintf (name, KEY_NAME_LENGTH, "%s/%s%d", TEST_ROOT_KEY, "dir", i);
ksAppendKey (large, keyNew (name, KEY_VALUE, value, KEY_END));
for (j = 0; j < NUM_KEY; j++)
{
snprintf (name, KEY_NAME_LENGTH, "%s/%s%d/%s%d", TEST_ROOT_KEY, "dir", i, "key", j);
ksAppendKey (large, keyNew (name, KEY_VALUE, value, KEY_END));
}
}
return large;
}
/* -- Functions ------------------------------------------------------------------------------------------------------------------------- */
static void test_mmap_get_set_empty (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_get_set (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
ksDel (ks);
ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = simpleTestKeySet ();
compare_keyset (expected, ks);
compare_keyset (ks, expected);
ksDel (expected);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_set_get_global (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
plugin->global = 0;
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
plugin->global = ksNew (0, KS_END);
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
ksDel (plugin->global);
ks = metaTestKeySet ();
plugin->global = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
ksDel (plugin->global);
plugin->global = ksNew (0, KS_END);
ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = simpleTestKeySet ();
compare_keyset (expected, plugin->global);
compare_keyset (plugin->global, expected);
ksDel (plugin->global);
ksDel (expected);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_get_global_after_reopen (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
plugin->global = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
KeySet * expected_global = simpleTestKeySet ();
compare_keyset (expected_global, plugin->global);
compare_keyset (plugin->global, expected_global);
KeySet * expected = metaTestKeySet ();
compare_keyset (expected, ks);
compare_keyset (ks, expected);
ksDel (expected_global);
ksDel (plugin->global);
ksDel (expected);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_set_get_global_metadata (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = metaTestKeySet ();
plugin->global = otherMetaTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
ksDel (plugin->global);
plugin->global = ksNew (0, KS_END);
ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
KeySet * expected_global = otherMetaTestKeySet ();
compare_keyset (expected_global, plugin->global);
compare_keyset (plugin->global, expected_global);
ksDel (expected_global);
KeySet * expected = metaTestKeySet ();
compare_keyset (expected, ks);
compare_keyset (ks, expected);
ksDel (expected);
ksDel (plugin->global);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_truncated_file (const char * tmpFile)
{
// first write a mmap file
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
// now truncate the mmap file by the size of the mmap footer
FILE * fp;
if ((fp = fopen (tmpFile, "r+")) == 0)
{
yield_error ("error opening file");
}
struct stat sbuf;
if (stat (tmpFile, &sbuf) == -1)
{
yield_error ("stat error");
}
int fd = fileno (fp);
if ((ftruncate (fd, sbuf.st_size - sizeof (MmapFooter))) == -1)
{
yield_error ("ftruncate error");
}
if (fp)
{
fclose (fp);
}
// truncated file should be detected by mmapstorage
{
// after the file was truncated, we expect an error here
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR, "kdbGet did not detect truncated file");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
}
static void test_mmap_wrong_magic_number (const char * tmpFile)
{
// first write a mmap file
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
// now manipulate magic number inside the mmap header
FILE * fp;
if ((fp = fopen (tmpFile, "r+")) == 0)
{
yield_error ("fopen() error");
}
struct stat sbuf;
if (stat (tmpFile, &sbuf) == -1)
{
yield_error ("stat() error");
}
int fd = fileno (fp);
char * mappedRegion = mmap (0, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mappedRegion == MAP_FAILED)
{
ELEKTRA_LOG_WARNING ("error mapping file %s\nmmapSize: " ELEKTRA_STAT_ST_SIZE_F, tmpFile, sbuf.st_size);
yield_error ("mmap() error");
return;
}
if (fp)
{
fclose (fp);
}
MmapHeader * mmapHeader = (MmapHeader *) mappedRegion;
mmapHeader->mmapMagicNumber = ELEKTRA_MAGIC_MMAP_NUMBER - 1;
if (msync ((void *) mappedRegion, sbuf.st_size, MS_SYNC) != 0)
{
yield_error ("msync() error");
return;
}
if (munmap (mappedRegion, sbuf.st_size) != 0)
{
yield_error ("munmap() error");
return;
}
// manipulated magic number should be detected now
{
// we expect an error here
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR,
"kdbGet did not detect wrong magic number");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
}
static void test_mmap_wrong_format_version (const char * tmpFile)
{
// first write a mmap file
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
// set wrong version number in mmap header
FILE * fp;
if ((fp = fopen (tmpFile, "r+")) == 0)
{
yield_error ("fopen() error");
}
struct stat sbuf;
if (stat (tmpFile, &sbuf) == -1)
{
yield_error ("stat() error");
}
int fd = fileno (fp);
char * mappedRegion = mmap (0, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mappedRegion == MAP_FAILED)
{
ELEKTRA_LOG_WARNING ("error mapping file %s\nmmapSize: " ELEKTRA_STAT_ST_SIZE_F, tmpFile, sbuf.st_size);
yield_error ("mmap() error");
return;
}
if (fp)
{
fclose (fp);
}
MmapHeader * mmapHeader = (MmapHeader *) mappedRegion;
mmapHeader->formatVersion = ELEKTRA_MMAP_FORMAT_VERSION + 1;
if (msync ((void *) mappedRegion, sbuf.st_size, MS_SYNC) != 0)
{
yield_error ("msync() error");
return;
}
if (munmap (mappedRegion, sbuf.st_size) != 0)
{
yield_error ("munmap() error");
return;
}
// wrong format version should be detected now
{
// we expect an error here
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR,
"kdbGet did not detect wrong format version");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
}
static void test_mmap_wrong_magic_keyset (const char * tmpFile)
{
// first write a mmap file
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
// now manipulate magic keyset inside the mapped region
FILE * fp;
if ((fp = fopen (tmpFile, "r+")) == 0)
{
yield_error ("fopen() error");
}
struct stat sbuf;
if (stat (tmpFile, &sbuf) == -1)
{
yield_error ("stat() error");
}
int fd = fileno (fp);
char * mappedRegion = mmap (0, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mappedRegion == MAP_FAILED)
{
ELEKTRA_LOG_WARNING ("error mapping file %s\nmmapSize: " ELEKTRA_STAT_ST_SIZE_F, tmpFile, sbuf.st_size);
yield_error ("mmap() error");
return;
}
if (fp)
{
fclose (fp);
}
KeySet * magicKs = (KeySet *) (mappedRegion + sizeof (MmapHeader));
magicKs->size = 1234; // magic keyset contains SIZE_MAX here
if (msync ((void *) mappedRegion, sbuf.st_size, MS_SYNC) != 0)
{
yield_error ("msync() error");
return;
}
if (munmap (mappedRegion, sbuf.st_size) != 0)
{
yield_error ("munmap() error");
return;
}
// manipulated magic keyset should be detected now
{
// we expect an error here
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR,
"kdbGet did not detect wrong magic keyset");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
}
static void test_mmap_set_get (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = simpleTestKeySet ();
compare_keyset (expected, returned);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_get_after_reopen (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = simpleTestKeySet ();
compare_keyset (expected, returned);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
static void test_mmap_set_get_large_keyset (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = largeTestKeySet ();
KeySet * expected = ksDeepDup (ks);
const char * name = "user:/tests/mmapstorage/dir7/key3";
Key * found = ksLookupByName (ks, name, KDB_O_OPMPHM);
if (!found)
{
yield_error ("Key not found.")
}
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
compare_keyset (expected, returned);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
static void test_mmap_ks_copy (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * returned = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
ksDel (returned);
returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = simpleTestKeySet ();
compare_keyset (expected, returned);
KeySet * copiedKs = ksNew (0, KS_END);
ksCopy (copiedKs, returned);
compare_keyset (expected, copiedKs);
ksDel (copiedKs);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
static void test_mmap_empty_after_clear (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
succeed_if (ksGetSize (returned) == 0, "KeySet not empty after clear (or nullptr)");
ksDel (returned);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
static void test_mmap_meta (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = metaTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = metaTestKeySet ();
compare_keyset (expected, returned);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_meta_get_after_reopen (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = metaTestKeySet ();
compare_keyset (expected, ks);
ksDel (expected);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_filter_meta (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = metaTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
Key * current;
for (elektraCursor it = 0; it < ksGetSize (returned); ++it)
{
current = ksAtCursor (returned, it);
succeed_if (current->meta != 0, "key had no metadata, but metadata was expected");
ksClear (current->meta);
}
succeed_if (plugin->kdbSet (plugin, returned, parentKey) == 1, "kdbSet was not successful");
ksDel (returned);
returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
for (elektraCursor it = 0; it < ksGetSize (returned); ++it)
{
current = ksAtCursor (returned, it);
succeed_if (current->meta == 0, "key had metadata, but metadata was expected to be filtered");
}
ksDel (returned);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_metacopy (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = metaTestKeySet ();
Key * shareMeta = keyNew ("/", KEY_END);
keySetMeta (shareMeta, "sharedmeta", "shared meta key test");
Key * current;
for (elektraCursor it = 0; it < ksGetSize (ks); ++it)
{
current = ksAtCursor (ks, it);
keyCopyMeta (current, shareMeta, "sharedmeta");
}
KeySet * expected = ksDeepDup (ks);
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
compare_keyset (expected, returned);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
keyDel (shareMeta);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_ks_copy_with_meta (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = metaTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
KeySet * returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
KeySet * expected = metaTestKeySet ();
compare_keyset (expected, returned);
KeySet * copiedKs = ksNew (0, KS_END);
ksCopy (copiedKs, returned);
compare_keyset (expected, copiedKs);
ksDel (copiedKs);
ksDel (expected);
ksDel (returned);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
#ifdef ELEKTRA_ENABLE_OPTIMIZATIONS
static void test_mmap_opmphm (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = largeTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksDel (ks);
ks = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
const char * name = "user:/tests/mmapstorage/dir7/key3";
Key * found = ksLookupByName (ks, name, KDB_O_OPMPHM);
if (!found)
{
yield_error ("Key not found.")
}
// write and re-read keyset with OPMPHM structures
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
ksClear (ks);
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
// try triggering memleaks by copies
KeySet * copy = ksNew (0, KS_END);
ksCopy (copy, ks);
ksDel (copy);
KeySet * dup = ksDup (ks);
ksDel (dup);
KeySet * deepDup = ksDeepDup (ks);
ksDel (deepDup);
KeySet * returned = largeTestKeySet ();
// this lookup forces OPMPHM structures into the keyset
// to test the OPMPHM cleanup functions inside mmapstorage
Key * generateOpmphm = ksLookupByName (ks, name, KDB_O_OPMPHM);
if (!generateOpmphm)
{
yield_error ("Key not found.")
}
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
ksDel (returned);
returned = ksNew (0, KS_END);
succeed_if (plugin->kdbGet (plugin, returned, parentKey) == 1, "kdbGet was not successful");
succeed_if (returned->opmphm != 0, "opmphm not stored properly");
found = ksLookupByName (returned, name, KDB_O_OPMPHM);
if (!found)
{
yield_error ("Key not found.")
}
// force re-generate the OPMPHM, tests cleanup and re-allocation after mmap
// i.e. tests if we broke the standard cleanup functions with our mmap flags
Key * key = keyNew ("user:/tests/mmapstorage/breakOpmphm", KEY_VALUE, "bad key", KEY_META, "e", "other meta root", KEY_END);
ksAppendKey (returned, key);
found = ksLookupByName (returned, name, KDB_O_OPMPHM);
if (!found)
{
yield_error ("Key not found.")
}
ksDel (returned);
ksDel (ks);
keyDel (parentKey);
PLUGIN_CLOSE ();
}
#endif
static void test_mmap_ksDupFun (const char * tmpFile, KeySet * copyFunction (const KeySet * source))
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
succeed_if ((ks->flags & KS_FLAG_MMAP_ARRAY) == KS_FLAG_MMAP_ARRAY, "KeySet array not in mmap");
KeySet * dupKs = copyFunction (ks);
compare_keyset (dupKs, ks);
compare_keyset (ks, dupKs);
ksDel (dupKs);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_ksCopy (const char * tmpFile)
{
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == 1, "kdbGet was not successful");
succeed_if ((ks->flags & KS_FLAG_MMAP_ARRAY) == KS_FLAG_MMAP_ARRAY, "KeySet array not in mmap");
KeySet * copyKs = ksNew (0, KS_END);
if (ksCopy (copyKs, ks) == 1)
{
compare_keyset (copyKs, ks);
compare_keyset (ks, copyKs);
}
else
{
yield_error ("ksCopy failed");
}
ksDel (copyKs);
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_open_pipe (void)
{
// try writing to a non-regular file, we simply use a pipe here
int pipefd[2];
if (pipe (pipefd) != 0)
{
yield_error ("pipe() error");
}
char pipeFile[1024];
snprintf (pipeFile, 1024, "/dev/fd/%d", pipefd[1]);
pipeFile[1023] = '\0';
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, pipeFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR, "kdbSet could write to pipe, but should not");
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_bad_file_permissions (const char * tmpFile)
{
// try writing to a file with bad permissions
if (getuid () == 0 || geteuid () == 0)
{
printf ("Skipping file permission test for root.\n");
return;
}
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = ksNew (0, KS_END);
FILE * fp;
if ((fp = fopen (tmpFile, "r+")) == 0)
{
yield_error ("error opening file");
}
struct stat sbuf;
if (stat (tmpFile, &sbuf) == -1)
{
yield_error ("stat() error");
}
fclose (fp);
if (chmod (tmpFile, 0) != 0)
{
yield_error ("chmod() failed");
}
// open() call should fail because file permissions were wrong
succeed_if (plugin->kdbGet (plugin, ks, parentKey) == ELEKTRA_PLUGIN_STATUS_ERROR, "kdbGet did not detect bad file permissions");
if (chmod (tmpFile, sbuf.st_mode) != 0)
{
yield_error ("chmod() failed");
}
keyDel (parentKey);
ksDel (ks);
PLUGIN_CLOSE ();
}
static void test_mmap_unlink (const char * tmpFile)
{
// test file unlinking by overwriting config file while mapped
int parentPipe[2];
int childPipe[2];
if (pipe (parentPipe) != 0 || pipe (childPipe) != 0)
{
yield_error ("pipe() error");
}
pid_t pid;
char buf;
pid = fork ();
if (pid == -1)
{
yield_error ("fork() error");
return;
}
else if (pid == 0)
{
// child: open a config file and leave it mapped
int devnull = open ("/dev/null", O_RDWR);
if (devnull == -1) _Exit (EXIT_FAILURE);
// redirect any communication on standard file descriptors to /dev/null
close (STDIN_FILENO);
close (STDOUT_FILENO);
close (STDERR_FILENO);
if (dup (devnull) == -1) _Exit (EXIT_FAILURE);
if (dup (devnull) == -1) _Exit (EXIT_FAILURE);
if (dup (devnull) == -1) _Exit (EXIT_FAILURE);
close (childPipe[0]);
close (parentPipe[1]);
Key * parentKey = keyNew (TEST_ROOT_KEY, KEY_VALUE, tmpFile, KEY_END);
KeySet * conf = ksNew (0, KS_END);
PLUGIN_OPEN ("mmapstorage");
KeySet * ks = simpleTestKeySet ();
succeed_if (plugin->kdbSet (plugin, ks, parentKey) == 1, "kdbSet was not successful");