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libtalloc/tests/sanity-tests/testsuite.c

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/*
Unix SMB/CIFS implementation.
local testing of talloc routines.
Copyright (C) Andrew Tridgell 2004
** NOTE! The following LGPL license applies to the talloc
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/time.h"
#include <talloc.h>
#ifdef HAVE_PTHREAD
#include <pthread.h>
#endif
#include <unistd.h>
#include <sys/wait.h>
#ifdef NDEBUG
#undef NDEBUG
#endif
#include <assert.h>
#include "talloc_testsuite.h"
static struct timeval private_timeval_current(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv;
}
static double private_timeval_elapsed(struct timeval *tv)
{
struct timeval tv2 = private_timeval_current();
return (tv2.tv_sec - tv->tv_sec) +
(tv2.tv_usec - tv->tv_usec)*1.0e-6;
}
#define torture_assert(test, expr, str) if (!(expr)) { \
printf("failure: %s [\n%s: Expression %s failed: %s\n]\n", \
test, __location__, #expr, str); \
return false; \
}
#define torture_assert_str_equal(test, arg1, arg2, desc) \
if (arg1 == NULL && arg2 == NULL) { \
} else if (strcmp(arg1, arg2)) { \
printf("failure: %s [\n%s: Expected %s, got %s: %s\n]\n", \
test, __location__, arg1, arg2, desc); \
return false; \
}
#define CHECK_SIZE(test, ptr, tsize) do { \
if (talloc_total_size(ptr) != (tsize)) { \
printf("failed: %s [\n%s: wrong '%s' tree size: got %u expected %u\n]\n", \
test, __location__, #ptr, \
(unsigned)talloc_total_size(ptr), \
(unsigned)tsize); \
talloc_report_full(ptr, stdout); \
return false; \
} \
} while (0)
#define CHECK_BLOCKS(test, ptr, tblocks) do { \
if (talloc_total_blocks(ptr) != (tblocks)) { \
printf("failed: %s [\n%s: wrong '%s' tree blocks: got %u expected %u\n]\n", \
test, __location__, #ptr, \
(unsigned)talloc_total_blocks(ptr), \
(unsigned)tblocks); \
talloc_report_full(ptr, stdout); \
return false; \
} \
} while (0)
#define CHECK_PARENT(test, ptr, parent) do { \
if (talloc_parent(ptr) != (parent)) { \
printf("failed: %s [\n%s: '%s' has wrong parent: got %p expected %p\n]\n", \
test, __location__, #ptr, \
talloc_parent(ptr), \
(parent)); \
talloc_report_full(ptr, stdout); \
talloc_report_full(parent, stdout); \
talloc_report_full(NULL, stdout); \
return false; \
} \
} while (0)
static unsigned int test_abort_count;
#if 0
static void test_abort_fn(const char *reason)
{
printf("# test_abort_fn(%s)\n", reason);
test_abort_count++;
}
static void test_abort_start(void)
{
test_abort_count = 0;
talloc_set_abort_fn(test_abort_fn);
}
#endif
static void test_abort_stop(void)
{
test_abort_count = 0;
talloc_set_abort_fn(NULL);
}
static void test_log_stdout(const char *message)
{
fprintf(stdout, "%s", message);
}
/*
test references
*/
static bool test_ref1(void)
{
void *root, *p1, *p2, *ref, *r1;
printf("test: ref1\n# SINGLE REFERENCE FREE\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "p1");
p2 = talloc_named_const(p1, 1, "p2");
talloc_named_const(p1, 1, "x1");
talloc_named_const(p1, 2, "x2");
talloc_named_const(p1, 3, "x3");
r1 = talloc_named_const(root, 1, "r1");
ref = talloc_reference(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref1", p1, 5);
CHECK_BLOCKS("ref1", p2, 1);
CHECK_BLOCKS("ref1", ref, 1);
CHECK_BLOCKS("ref1", r1, 2);
fprintf(stderr, "Freeing p2\n");
talloc_unlink(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref1", p1, 5);
CHECK_BLOCKS("ref1", p2, 1);
CHECK_BLOCKS("ref1", r1, 1);
fprintf(stderr, "Freeing p1\n");
talloc_free(p1);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref1", r1, 1);
fprintf(stderr, "Freeing r1\n");
talloc_free(r1);
talloc_report_full(NULL, stderr);
fprintf(stderr, "Testing NULL\n");
if (talloc_reference(root, NULL)) {
return false;
}
CHECK_BLOCKS("ref1", root, 1);
CHECK_SIZE("ref1", root, 0);
talloc_free(root);
printf("success: ref1\n");
return true;
}
/*
test references
*/
static bool test_ref2(void)
{
void *root, *p1, *p2, *ref, *r1;
printf("test: ref2\n# DOUBLE REFERENCE FREE\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "p1");
talloc_named_const(p1, 1, "x1");
talloc_named_const(p1, 1, "x2");
talloc_named_const(p1, 1, "x3");
p2 = talloc_named_const(p1, 1, "p2");
r1 = talloc_named_const(root, 1, "r1");
ref = talloc_reference(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref2", p1, 5);
CHECK_BLOCKS("ref2", p2, 1);
CHECK_BLOCKS("ref2", r1, 2);
fprintf(stderr, "Freeing ref\n");
talloc_unlink(r1, ref);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref2", p1, 5);
CHECK_BLOCKS("ref2", p2, 1);
CHECK_BLOCKS("ref2", r1, 1);
fprintf(stderr, "Freeing p2\n");
talloc_free(p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref2", p1, 4);
CHECK_BLOCKS("ref2", r1, 1);
fprintf(stderr, "Freeing p1\n");
talloc_free(p1);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref2", r1, 1);
fprintf(stderr, "Freeing r1\n");
talloc_free(r1);
talloc_report_full(root, stderr);
CHECK_SIZE("ref2", root, 0);
talloc_free(root);
printf("success: ref2\n");
return true;
}
/*
test references
*/
static bool test_ref3(void)
{
void *root, *p1, *p2, *ref, *r1;
printf("test: ref3\n# PARENT REFERENCE FREE\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "p1");
p2 = talloc_named_const(root, 1, "p2");
r1 = talloc_named_const(p1, 1, "r1");
ref = talloc_reference(p2, r1);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref3", p1, 2);
CHECK_BLOCKS("ref3", p2, 2);
CHECK_BLOCKS("ref3", r1, 1);
CHECK_BLOCKS("ref3", ref, 1);
fprintf(stderr, "Freeing p1\n");
talloc_free(p1);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref3", p2, 2);
CHECK_BLOCKS("ref3", r1, 1);
fprintf(stderr, "Freeing p2\n");
talloc_free(p2);
talloc_report_full(root, stderr);
CHECK_SIZE("ref3", root, 0);
talloc_free(root);
printf("success: ref3\n");
return true;
}
/*
test references
*/
static bool test_ref4(void)
{
void *root, *p1, *p2, *ref, *r1;
printf("test: ref4\n# REFERRER REFERENCE FREE\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "p1");
talloc_named_const(p1, 1, "x1");
talloc_named_const(p1, 1, "x2");
talloc_named_const(p1, 1, "x3");
p2 = talloc_named_const(p1, 1, "p2");
r1 = talloc_named_const(root, 1, "r1");
ref = talloc_reference(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref4", p1, 5);
CHECK_BLOCKS("ref4", p2, 1);
CHECK_BLOCKS("ref4", ref, 1);
CHECK_BLOCKS("ref4", r1, 2);
fprintf(stderr, "Freeing r1\n");
talloc_free(r1);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref4", p1, 5);
CHECK_BLOCKS("ref4", p2, 1);
fprintf(stderr, "Freeing p2\n");
talloc_free(p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("ref4", p1, 4);
fprintf(stderr, "Freeing p1\n");
talloc_free(p1);
talloc_report_full(root, stderr);
CHECK_SIZE("ref4", root, 0);
talloc_free(root);
printf("success: ref4\n");
return true;
}
/*
test references
*/
static bool test_unlink1(void)
{
void *root, *p1, *p2, *ref, *r1;
printf("test: unlink\n# UNLINK\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "p1");
talloc_named_const(p1, 1, "x1");
talloc_named_const(p1, 1, "x2");
talloc_named_const(p1, 1, "x3");
p2 = talloc_named_const(p1, 1, "p2");
r1 = talloc_named_const(p1, 1, "r1");
ref = talloc_reference(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("unlink", p1, 7);
CHECK_BLOCKS("unlink", p2, 1);
CHECK_BLOCKS("unlink", ref, 1);
CHECK_BLOCKS("unlink", r1, 2);
fprintf(stderr, "Unreferencing r1\n");
talloc_unlink(r1, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("unlink", p1, 6);
CHECK_BLOCKS("unlink", p2, 1);
CHECK_BLOCKS("unlink", r1, 1);
fprintf(stderr, "Freeing p1\n");
talloc_free(p1);
talloc_report_full(root, stderr);
CHECK_SIZE("unlink", root, 0);
talloc_free(root);
printf("success: unlink\n");
return true;
}
static int fail_destructor(void *ptr)
{
return -1;
}
/*
miscellaneous tests to try to get a higher test coverage percentage
*/
static bool test_misc(void)
{
void *root, *p1;
char *p2;
double *d;
const char *name;
printf("test: misc\n# MISCELLANEOUS\n");
root = talloc_new(NULL);
p1 = talloc_size(root, 0x7fffffff);
torture_assert("misc", !p1, "failed: large talloc allowed\n");
p1 = talloc_strdup(root, "foo");
talloc_increase_ref_count(p1);
talloc_increase_ref_count(p1);
talloc_increase_ref_count(p1);
CHECK_BLOCKS("misc", p1, 1);
CHECK_BLOCKS("misc", root, 2);
talloc_unlink(NULL, p1);
CHECK_BLOCKS("misc", p1, 1);
CHECK_BLOCKS("misc", root, 2);
talloc_unlink(NULL, p1);
CHECK_BLOCKS("misc", p1, 1);
CHECK_BLOCKS("misc", root, 2);
p2 = talloc_strdup(p1, "foo");
torture_assert("misc", talloc_unlink(root, p2) == -1,
"failed: talloc_unlink() of non-reference context should return -1\n");
torture_assert("misc", talloc_unlink(p1, p2) == 0,
"failed: talloc_unlink() of parent should succeed\n");
talloc_unlink(NULL, p1);
CHECK_BLOCKS("misc", p1, 1);
CHECK_BLOCKS("misc", root, 2);
name = talloc_set_name(p1, "my name is %s", "foo");
torture_assert_str_equal("misc", talloc_get_name(p1), "my name is foo",
"failed: wrong name after talloc_set_name(my name is foo)");
torture_assert_str_equal("misc", talloc_get_name(p1), name,
"failed: wrong name after talloc_set_name(my name is foo)");
CHECK_BLOCKS("misc", p1, 2);
CHECK_BLOCKS("misc", root, 3);
talloc_set_name_const(p1, NULL);
torture_assert_str_equal ("misc", talloc_get_name(p1), "UNNAMED",
"failed: wrong name after talloc_set_name(NULL)");
CHECK_BLOCKS("misc", p1, 2);
CHECK_BLOCKS("misc", root, 3);
torture_assert("misc", talloc_free(NULL) == -1,
"talloc_free(NULL) should give -1\n");
talloc_set_destructor(p1, fail_destructor);
torture_assert("misc", talloc_free(p1) == -1,
"Failed destructor should cause talloc_free to fail\n");
talloc_set_destructor(p1, NULL);
talloc_report(root, stderr);
p2 = (char *)talloc_zero_size(p1, 20);
torture_assert("misc", p2[19] == 0, "Failed to give zero memory\n");
talloc_free(p2);
torture_assert("misc", talloc_strdup(root, NULL) == NULL,
"failed: strdup on NULL should give NULL\n");
p2 = talloc_strndup(p1, "foo", 2);
torture_assert("misc", strcmp("fo", p2) == 0,
"strndup doesn't work\n");
p2 = talloc_asprintf_append_buffer(p2, "o%c", 'd');
torture_assert("misc", strcmp("food", p2) == 0,
"talloc_asprintf_append_buffer doesn't work\n");
CHECK_BLOCKS("misc", p2, 1);
CHECK_BLOCKS("misc", p1, 3);
p2 = talloc_asprintf_append_buffer(NULL, "hello %s", "world");
torture_assert("misc", strcmp("hello world", p2) == 0,
"talloc_asprintf_append_buffer doesn't work\n");
CHECK_BLOCKS("misc", p2, 1);
CHECK_BLOCKS("misc", p1, 3);
talloc_free(p2);
d = talloc_array(p1, double, 0x20000000);
torture_assert("misc", !d, "failed: integer overflow not detected\n");
d = talloc_realloc(p1, d, double, 0x20000000);
torture_assert("misc", !d, "failed: integer overflow not detected\n");
talloc_free(p1);
CHECK_BLOCKS("misc", root, 1);
p1 = talloc_named(root, 100, "%d bytes", 100);
CHECK_BLOCKS("misc", p1, 2);
CHECK_BLOCKS("misc", root, 3);
talloc_unlink(root, p1);
p1 = talloc_init("%d bytes", 200);
p2 = talloc_asprintf(p1, "my test '%s'", "string");
torture_assert_str_equal("misc", p2, "my test 'string'",
"failed: talloc_asprintf(\"my test '%%s'\", \"string\") gave: \"%s\"");
CHECK_BLOCKS("misc", p1, 3);
CHECK_SIZE("misc", p2, 17);
CHECK_BLOCKS("misc", root, 1);
talloc_unlink(NULL, p1);
p1 = talloc_named_const(root, 10, "p1");
p2 = (char *)talloc_named_const(root, 20, "p2");
(void)talloc_reference(p1, p2);
talloc_report_full(root, stderr);
talloc_unlink(root, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("misc", p2, 1);
CHECK_BLOCKS("misc", p1, 2);
CHECK_BLOCKS("misc", root, 3);
talloc_unlink(p1, p2);
talloc_unlink(root, p1);
p1 = talloc_named_const(root, 10, "p1");
p2 = (char *)talloc_named_const(root, 20, "p2");
(void)talloc_reference(NULL, p2);
talloc_report_full(root, stderr);
talloc_unlink(root, p2);
talloc_report_full(root, stderr);
CHECK_BLOCKS("misc", p2, 1);
CHECK_BLOCKS("misc", p1, 1);
CHECK_BLOCKS("misc", root, 2);
talloc_unlink(NULL, p2);
talloc_unlink(root, p1);
/* Test that talloc_unlink is a no-op */
torture_assert("misc", talloc_unlink(root, NULL) == -1,
"failed: talloc_unlink(root, NULL) == -1\n");
talloc_report(root, stderr);
talloc_report(NULL, stderr);
CHECK_SIZE("misc", root, 0);
talloc_free(root);
CHECK_SIZE("misc", NULL, 0);
talloc_enable_null_tracking_no_autofree();
talloc_enable_leak_report();
talloc_enable_leak_report_full();
printf("success: misc\n");
return true;
}
/*
test realloc
*/
static bool test_realloc(void)
{
void *root, *p1, *p2;
printf("test: realloc\n# REALLOC\n");
root = talloc_new(NULL);
p1 = talloc_size(root, 10);
CHECK_SIZE("realloc", p1, 10);
p1 = talloc_realloc_size(NULL, p1, 20);
CHECK_SIZE("realloc", p1, 20);
talloc_new(p1);
p2 = talloc_realloc_size(p1, NULL, 30);
talloc_new(p1);
p2 = talloc_realloc_size(p1, p2, 40);
CHECK_SIZE("realloc", p2, 40);
CHECK_SIZE("realloc", root, 60);
CHECK_BLOCKS("realloc", p1, 4);
p1 = talloc_realloc_size(NULL, p1, 20);
CHECK_SIZE("realloc", p1, 60);
talloc_increase_ref_count(p2);
torture_assert("realloc", talloc_realloc_size(NULL, p2, 5) == NULL,
"failed: talloc_realloc() on a referenced pointer should fail\n");
CHECK_BLOCKS("realloc", p1, 4);
talloc_realloc_size(NULL, p2, 0);
talloc_realloc_size(NULL, p2, 0);
CHECK_BLOCKS("realloc", p1, 4);
talloc_realloc_size(p1, p2, 0);
CHECK_BLOCKS("realloc", p1, 3);
torture_assert("realloc", talloc_realloc_size(NULL, p1, 0x7fffffff) == NULL,
"failed: oversize talloc should fail\n");
talloc_realloc_size(NULL, p1, 0);
CHECK_BLOCKS("realloc", root, 4);
talloc_realloc_size(root, p1, 0);
CHECK_BLOCKS("realloc", root, 1);
CHECK_SIZE("realloc", root, 0);
talloc_free(root);
printf("success: realloc\n");
return true;
}
/*
test realloc with a child
*/
static bool test_realloc_child(void)
{
void *root;
struct el2 {
const char *name;
} *el2, *el2_2, *el2_3, **el_list_save;
struct el1 {
int count;
struct el2 **list, **list2, **list3;
} *el1;
printf("test: REALLOC WITH CHILD\n");
root = talloc_new(NULL);
el1 = talloc(root, struct el1);
el1->list = talloc(el1, struct el2 *);
el1->list[0] = talloc(el1->list, struct el2);
el1->list[0]->name = talloc_strdup(el1->list[0], "testing");
el1->list2 = talloc(el1, struct el2 *);
el1->list2[0] = talloc(el1->list2, struct el2);
el1->list2[0]->name = talloc_strdup(el1->list2[0], "testing2");
el1->list3 = talloc(el1, struct el2 *);
el1->list3[0] = talloc(el1->list3, struct el2);
el1->list3[0]->name = talloc_strdup(el1->list3[0], "testing2");
el2 = talloc(el1->list, struct el2);
CHECK_PARENT("el2", el2, el1->list);
el2_2 = talloc(el1->list2, struct el2);
CHECK_PARENT("el2", el2_2, el1->list2);
el2_3 = talloc(el1->list3, struct el2);
CHECK_PARENT("el2", el2_3, el1->list3);
el_list_save = el1->list;
el1->list = talloc_realloc(el1, el1->list, struct el2 *, 100);
if (el1->list == el_list_save) {
printf("failure: talloc_realloc didn't move pointer");
return false;
}
CHECK_PARENT("el1_after_realloc", el1->list, el1);
el1->list2 = talloc_realloc(el1, el1->list2, struct el2 *, 200);
CHECK_PARENT("el1_after_realloc", el1->list2, el1);
el1->list3 = talloc_realloc(el1, el1->list3, struct el2 *, 300);
CHECK_PARENT("el1_after_realloc", el1->list3, el1);
CHECK_PARENT("el2", el2, el1->list);
CHECK_PARENT("el2", el2_2, el1->list2);
CHECK_PARENT("el2", el2_3, el1->list3);
/* Finally check realloc with multiple children */
el1 = talloc_realloc(root, el1, struct el1, 100);
CHECK_PARENT("el1->list", el1->list, el1);
CHECK_PARENT("el1->list2", el1->list2, el1);
CHECK_PARENT("el1->list3", el1->list3, el1);
talloc_free(root);
printf("success: REALLOC WITH CHILD\n");
return true;
}
/*
test type checking
*/
static bool test_type(void)
{
void *root;
struct el1 {
int count;
};
struct el2 {
int count;
};
struct el1 *el1;
printf("test: type\n# talloc type checking\n");
root = talloc_new(NULL);
el1 = talloc(root, struct el1);
el1->count = 1;
torture_assert("type", talloc_get_type(el1, struct el1) == el1,
"type check failed on el1\n");
torture_assert("type", talloc_get_type(el1, struct el2) == NULL,
"type check failed on el1 with el2\n");
talloc_set_type(el1, struct el2);
torture_assert("type", talloc_get_type(el1, struct el2) == (struct el2 *)el1,
"type set failed on el1 with el2\n");
talloc_free(root);
printf("success: type\n");
return true;
}
/*
test steal
*/
static bool test_steal(void)
{
void *root, *p1, *p2;
printf("test: steal\n# STEAL\n");
root = talloc_new(NULL);
p1 = talloc_array(root, char, 10);
CHECK_SIZE("steal", p1, 10);
p2 = talloc_realloc(root, NULL, char, 20);
CHECK_SIZE("steal", p1, 10);
CHECK_SIZE("steal", root, 30);
torture_assert("steal", talloc_steal(p1, NULL) == NULL,
"failed: stealing NULL should give NULL\n");
torture_assert("steal", talloc_steal(p1, p1) == p1,
"failed: stealing to ourselves is a nop\n");
CHECK_BLOCKS("steal", root, 3);
CHECK_SIZE("steal", root, 30);
talloc_steal(NULL, p1);
talloc_steal(NULL, p2);
CHECK_BLOCKS("steal", root, 1);
CHECK_SIZE("steal", root, 0);
talloc_free(p1);
talloc_steal(root, p2);
CHECK_BLOCKS("steal", root, 2);
CHECK_SIZE("steal", root, 20);
talloc_free(p2);
CHECK_BLOCKS("steal", root, 1);
CHECK_SIZE("steal", root, 0);
talloc_free(root);
p1 = talloc_size(NULL, 3);
talloc_report_full(NULL, stderr);
CHECK_SIZE("steal", NULL, 3);
talloc_free(p1);
printf("success: steal\n");
return true;
}
/*
test move
*/
static bool test_move(void)
{
void *root;
struct t_move {
char *p;
int *x;
} *t1, *t2;
printf("test: move\n# MOVE\n");
root = talloc_new(NULL);
t1 = talloc(root, struct t_move);
t2 = talloc(root, struct t_move);
t1->p = talloc_strdup(t1, "foo");
t1->x = talloc(t1, int);
*t1->x = 42;
t2->p = talloc_move(t2, &t1->p);
t2->x = talloc_move(t2, &t1->x);
torture_assert("move", t1->p == NULL && t1->x == NULL &&
strcmp(t2->p, "foo") == 0 && *t2->x == 42,
"talloc move failed");
talloc_free(root);
printf("success: move\n");
return true;
}
/*
test talloc_realloc_fn
*/
static bool test_realloc_fn(void)
{
void *root, *p1;
printf("test: realloc_fn\n# talloc_realloc_fn\n");
root = talloc_new(NULL);
p1 = talloc_realloc_fn(root, NULL, 10);
CHECK_BLOCKS("realloc_fn", root, 2);
CHECK_SIZE("realloc_fn", root, 10);
p1 = talloc_realloc_fn(root, p1, 20);
CHECK_BLOCKS("realloc_fn", root, 2);
CHECK_SIZE("realloc_fn", root, 20);
p1 = talloc_realloc_fn(root, p1, 0);
CHECK_BLOCKS("realloc_fn", root, 1);
CHECK_SIZE("realloc_fn", root, 0);
talloc_free(root);
printf("success: realloc_fn\n");
return true;
}
static bool test_unref_reparent(void)
{
void *root, *p1, *p2, *c1;
printf("test: unref_reparent\n# UNREFERENCE AFTER PARENT FREED\n");
root = talloc_named_const(NULL, 0, "root");
p1 = talloc_named_const(root, 1, "orig parent");
p2 = talloc_named_const(root, 1, "parent by reference");
c1 = talloc_named_const(p1, 1, "child");
talloc_reference(p2, c1);
CHECK_PARENT("unref_reparent", c1, p1);
talloc_free(p1);
CHECK_PARENT("unref_reparent", c1, p2);
talloc_unlink(p2, c1);
CHECK_SIZE("unref_reparent", root, 1);
talloc_free(p2);
talloc_free(root);
printf("success: unref_reparent\n");
return true;
}
/*
measure the speed of talloc versus malloc
*/
static bool test_speed(void)
{
void *ctx = talloc_new(NULL);
unsigned count;
const int loop = 1000;
int i;
struct timeval tv;
printf("test: speed\n# TALLOC VS MALLOC SPEED\n");
tv = private_timeval_current();
count = 0;
do {
void *p1, *p2, *p3;
for (i=0;i<loop;i++) {
p1 = talloc_size(ctx, loop % 100);
p2 = talloc_strdup(p1, "foo bar");
p3 = talloc_size(p1, 300);
(void)p2;
(void)p3;
talloc_free(p1);
}
count += 3 * loop;
} while (private_timeval_elapsed(&tv) < 5.0);
fprintf(stderr, "talloc: %.0f ops/sec\n", count/private_timeval_elapsed(&tv));
talloc_free(ctx);
ctx = talloc_pool(NULL, 1024);
tv = private_timeval_current();
count = 0;
do {
void *p1, *p2, *p3;
for (i=0;i<loop;i++) {
p1 = talloc_size(ctx, loop % 100);
p2 = talloc_strdup(p1, "foo bar");
p3 = talloc_size(p1, 300);
(void)p2;
(void)p3;
talloc_free(p1);
}
count += 3 * loop;
} while (private_timeval_elapsed(&tv) < 5.0);
talloc_free(ctx);
fprintf(stderr, "talloc_pool: %.0f ops/sec\n", count/private_timeval_elapsed(&tv));
tv = private_timeval_current();
count = 0;
do {
void *p1, *p2, *p3;
for (i=0;i<loop;i++) {
p1 = malloc(loop % 100);
p2 = strdup("foo bar");
p3 = malloc(300);
free(p1);
free(p2);
free(p3);
}
count += 3 * loop;
} while (private_timeval_elapsed(&tv) < 5.0);
fprintf(stderr, "malloc: %.0f ops/sec\n", count/private_timeval_elapsed(&tv));
printf("success: speed\n");
return true;
}
static bool test_lifeless(void)
{
void *top = talloc_new(NULL);
char *parent, *child;
void *child_owner = talloc_new(NULL);
printf("test: lifeless\n# TALLOC_UNLINK LOOP\n");
parent = talloc_strdup(top, "parent");
child = talloc_strdup(parent, "child");
(void)talloc_reference(child, parent);
(void)talloc_reference(child_owner, child);
talloc_report_full(top, stderr);
talloc_unlink(top, parent);
talloc_unlink(top, child);
talloc_report_full(top, stderr);
talloc_free(top);
talloc_free(child_owner);
talloc_free(child);
printf("success: lifeless\n");
return true;
}
static int loop_destructor_count;
static int test_loop_destructor(char *ptr)
{
loop_destructor_count++;
return 0;
}
static bool test_loop(void)
{
void *top = talloc_new(NULL);
char *parent;
struct req1 {
char *req2, *req3;
} *req1;
printf("test: loop\n# TALLOC LOOP DESTRUCTION\n");
parent = talloc_strdup(top, "parent");
req1 = talloc(parent, struct req1);
req1->req2 = talloc_strdup(req1, "req2");
talloc_set_destructor(req1->req2, test_loop_destructor);
req1->req3 = talloc_strdup(req1, "req3");
(void)talloc_reference(req1->req3, req1);
talloc_report_full(top, stderr);
talloc_free(parent);
talloc_report_full(top, stderr);
talloc_report_full(NULL, stderr);
talloc_free(top);
torture_assert("loop", loop_destructor_count == 1,
"FAILED TO FIRE LOOP DESTRUCTOR\n");
loop_destructor_count = 0;
printf("success: loop\n");
return true;
}
static int realloc_parent_destructor_count;
static int test_realloc_parent_destructor(char *ptr)
{
realloc_parent_destructor_count++;
return 0;
}
static bool test_realloc_on_destructor_parent(void)
{
void *top = talloc_new(NULL);
char *parent;
char *a, *b, *C, *D;
realloc_parent_destructor_count = 0;
printf("test: free_for_exit\n# TALLOC FREE FOR EXIT\n");
parent = talloc_strdup(top, "parent");
a = talloc_strdup(parent, "a");
b = talloc_strdup(a, "b");
C = talloc_strdup(a, "C");
D = talloc_strdup(b, "D");
talloc_set_destructor(D, test_realloc_parent_destructor);
/* Capitalised ones have destructors.
*
* parent --> a -> b -> D
* -> c
*/
a = talloc_realloc(parent, a, char, 2048);
torture_assert("check talloc_realloc", a != NULL, "talloc_realloc failed");
talloc_set_destructor(C, test_realloc_parent_destructor);
/*
* parent --> a[2048] -> b -> D
* -> C
*
*/
talloc_free(parent);
torture_assert("check destructor realloc_parent_destructor",
realloc_parent_destructor_count == 2,
"FAILED TO FIRE free_for_exit_destructor\n");
printf("success: free_for_exit\n");
return true;
}
static int fail_destructor_str(char *ptr)
{
return -1;
}
static bool test_free_parent_deny_child(void)
{
void *top = talloc_new(NULL);
char *level1;
char *level2;
char *level3;
printf("test: free_parent_deny_child\n# TALLOC FREE PARENT DENY CHILD\n");
level1 = talloc_strdup(top, "level1");
level2 = talloc_strdup(level1, "level2");
level3 = talloc_strdup(level2, "level3");
talloc_set_destructor(level3, fail_destructor_str);
talloc_free(level1);
talloc_set_destructor(level3, NULL);
CHECK_PARENT("free_parent_deny_child", level3, top);
talloc_free(top);
printf("success: free_parent_deny_child\n");
return true;
}
struct new_parent {
void *new_parent;
char val[20];
};
static int reparenting_destructor(struct new_parent *np)
{
talloc_set_destructor(np, NULL);
(void)talloc_move(np->new_parent, &np);
return -1;
}
static bool test_free_parent_reparent_child(void)
{
void *top = talloc_new(NULL);
char *level1;
char *alternate_level1;
char *level2;
struct new_parent *level3;
printf("test: free_parent_reparent_child\n# "
"TALLOC FREE PARENT REPARENT CHILD\n");
level1 = talloc_strdup(top, "level1");
alternate_level1 = talloc_strdup(top, "alternate_level1");
level2 = talloc_strdup(level1, "level2");
level3 = talloc(level2, struct new_parent);
level3->new_parent = alternate_level1;
memset(level3->val, 'x', sizeof(level3->val));
talloc_set_destructor(level3, reparenting_destructor);
talloc_free(level1);
CHECK_PARENT("free_parent_reparent_child",
level3, alternate_level1);
talloc_free(top);
printf("success: free_parent_reparent_child\n");
return true;
}
static bool test_free_parent_reparent_child_in_pool(void)
{
void *top = talloc_new(NULL);
char *level1;
char *alternate_level1;
char *level2;
void *pool;
struct new_parent *level3;
printf("test: free_parent_reparent_child_in_pool\n# "
"TALLOC FREE PARENT REPARENT CHILD IN POOL\n");
pool = talloc_pool(top, 1024);
level1 = talloc_strdup(pool, "level1");
alternate_level1 = talloc_strdup(top, "alternate_level1");
level2 = talloc_strdup(level1, "level2");
level3 = talloc(level2, struct new_parent);
level3->new_parent = alternate_level1;
memset(level3->val, 'x', sizeof(level3->val));
talloc_set_destructor(level3, reparenting_destructor);
talloc_free(level1);
talloc_set_destructor(level3, NULL);
CHECK_PARENT("free_parent_reparent_child_in_pool",
level3, alternate_level1);
/* Even freeing alternate_level1 should leave pool alone. */
talloc_free(alternate_level1);
talloc_free(top);
printf("success: free_parent_reparent_child_in_pool\n");
return true;
}
static bool test_talloc_ptrtype(void)
{
void *top = talloc_new(NULL);
struct struct1 {
int foo;
int bar;
} *s1, *s2, **s3, ***s4;
const char *location1;
const char *location2;
const char *location3;
const char *location4;
printf("test: ptrtype\n# TALLOC PTRTYPE\n");
s1 = talloc_ptrtype(top, s1);location1 = __location__;
if (talloc_get_size(s1) != sizeof(struct struct1)) {
printf("failure: ptrtype [\n"
"talloc_ptrtype() allocated the wrong size %lu (should be %lu)\n"
"]\n", (unsigned long)talloc_get_size(s1),
(unsigned long)sizeof(struct struct1));
return false;
}
if (strcmp(location1, talloc_get_name(s1)) != 0) {
printf("failure: ptrtype [\n"
"talloc_ptrtype() sets the wrong name '%s' (should be '%s')\n]\n",
talloc_get_name(s1), location1);
return false;
}
s2 = talloc_array_ptrtype(top, s2, 10);location2 = __location__;
if (talloc_get_size(s2) != (sizeof(struct struct1) * 10)) {
printf("failure: ptrtype [\n"
"talloc_array_ptrtype() allocated the wrong size "
"%lu (should be %lu)\n]\n",
(unsigned long)talloc_get_size(s2),
(unsigned long)(sizeof(struct struct1)*10));
return false;
}
if (strcmp(location2, talloc_get_name(s2)) != 0) {
printf("failure: ptrtype [\n"
"talloc_array_ptrtype() sets the wrong name '%s' (should be '%s')\n]\n",
talloc_get_name(s2), location2);
return false;
}
s3 = talloc_array_ptrtype(top, s3, 10);location3 = __location__;
if (talloc_get_size(s3) != (sizeof(struct struct1 *) * 10)) {
printf("failure: ptrtype [\n"
"talloc_array_ptrtype() allocated the wrong size "
"%lu (should be %lu)\n]\n",
(unsigned long)talloc_get_size(s3),
(unsigned long)(sizeof(struct struct1 *)*10));
return false;
}
torture_assert_str_equal("ptrtype", location3, talloc_get_name(s3),
"talloc_array_ptrtype() sets the wrong name");
s4 = talloc_array_ptrtype(top, s4, 10);location4 = __location__;
if (talloc_get_size(s4) != (sizeof(struct struct1 **) * 10)) {
printf("failure: ptrtype [\n"
"talloc_array_ptrtype() allocated the wrong size "
"%lu (should be %lu)\n]\n",
(unsigned long)talloc_get_size(s4),
(unsigned long)(sizeof(struct struct1 **)*10));
return false;
}
torture_assert_str_equal("ptrtype", location4, talloc_get_name(s4),
"talloc_array_ptrtype() sets the wrong name");
talloc_free(top);
printf("success: ptrtype\n");
return true;
}
static int _test_talloc_free_in_destructor(void **ptr)
{
talloc_free(*ptr);
return 0;
}
static bool test_talloc_free_in_destructor(void)
{
void *level0;
void *level1;
void *level2;
void *level3;
void *level4;
void **level5;
printf("test: free_in_destructor\n# TALLOC FREE IN DESTRUCTOR\n");
level0 = talloc_new(NULL);
level1 = talloc_new(level0);
level2 = talloc_new(level1);
level3 = talloc_new(level2);
level4 = talloc_new(level3);
level5 = talloc(level4, void *);
*level5 = level3;
(void)talloc_reference(level0, level3);
(void)talloc_reference(level3, level3);
(void)talloc_reference(level5, level3);
talloc_set_destructor(level5, _test_talloc_free_in_destructor);
talloc_free(level1);
talloc_free(level0);
printf("success: free_in_destructor\n");
return true;
}
static bool test_autofree(void)
{
#if _SAMBA_BUILD_ < 4
/* autofree test would kill smbtorture */
void *p;
printf("test: autofree\n# TALLOC AUTOFREE CONTEXT\n");
p = talloc_autofree_context();
talloc_free(p);
p = talloc_autofree_context();
talloc_free(p);
printf("success: autofree\n");
#endif
return true;
}
static bool test_pool(void)
{
void *pool;
void *p1, *p2, *p3, *p4;
void *p2_2;
pool = talloc_pool(NULL, 1024);
p1 = talloc_size(pool, 80);
memset(p1, 0x11, talloc_get_size(p1));
p2 = talloc_size(pool, 20);
memset(p2, 0x11, talloc_get_size(p2));
p3 = talloc_size(p1, 50);
memset(p3, 0x11, talloc_get_size(p3));
p4 = talloc_size(p3, 1000);
memset(p4, 0x11, talloc_get_size(p4));
#if 1 /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
p2_2 = talloc_realloc_size(pool, p2, 20+1);
torture_assert("pool realloc 20+1", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
p2_2 = talloc_realloc_size(pool, p2, 20-1);
torture_assert("pool realloc 20-1", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
p2_2 = talloc_realloc_size(pool, p2, 20-1);
torture_assert("pool realloc 20-1", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
talloc_free(p3);
/* this should reclaim the memory of p4 and p3 */
p2_2 = talloc_realloc_size(pool, p2, 400);
torture_assert("pool realloc 400", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
talloc_free(p1);
/* this should reclaim the memory of p1 */
p2_2 = talloc_realloc_size(pool, p2, 800);
torture_assert("pool realloc 800", p2_2 == p1, "failed: pointer not changed");
p2 = p2_2;
memset(p2, 0x11, talloc_get_size(p2));
/* this should do a malloc */
p2_2 = talloc_realloc_size(pool, p2, 1800);
torture_assert("pool realloc 1800", p2_2 != p2, "failed: pointer not changed");
p2 = p2_2;
memset(p2, 0x11, talloc_get_size(p2));
/* this should reclaim the memory from the pool */
p3 = talloc_size(pool, 80);
torture_assert("pool alloc 80", p3 == p1, "failed: pointer changed");
memset(p3, 0x11, talloc_get_size(p3));
talloc_free(p2);
talloc_free(p3);
p1 = talloc_size(pool, 80);
memset(p1, 0x11, talloc_get_size(p1));
p2 = talloc_size(pool, 20);
memset(p2, 0x11, talloc_get_size(p2));
talloc_free(p1);
p2_2 = talloc_realloc_size(pool, p2, 20-1);
torture_assert("pool realloc 20-1", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
p2_2 = talloc_realloc_size(pool, p2, 20-1);
torture_assert("pool realloc 20-1", p2_2 == p2, "failed: pointer changed");
memset(p2, 0x11, talloc_get_size(p2));
/* this should do a malloc */
p2_2 = talloc_realloc_size(pool, p2, 1800);
torture_assert("pool realloc 1800", p2_2 != p2, "failed: pointer not changed");
p2 = p2_2;
memset(p2, 0x11, talloc_get_size(p2));
/* this should reclaim the memory from the pool */
p3 = talloc_size(pool, 800);
torture_assert("pool alloc 800", p3 == p1, "failed: pointer changed");
memset(p3, 0x11, talloc_get_size(p3));
#endif /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
talloc_free(pool);
return true;
}
static bool test_pool_steal(void)
{
void *root;
void *pool;
void *p1, *p2;
void *p1_2, *p2_2;
size_t hdr;
size_t ofs1, ofs2;
root = talloc_new(NULL);
pool = talloc_pool(root, 1024);
p1 = talloc_size(pool, 4 * 16);
torture_assert("pool allocate 4 * 16", p1 != NULL, "failed ");
memset(p1, 0x11, talloc_get_size(p1));
p2 = talloc_size(pool, 4 * 16);
torture_assert("pool allocate 4 * 16", p2 > p1, "failed: !(p2 > p1) ");
memset(p2, 0x11, talloc_get_size(p2));
ofs1 = PTR_DIFF(p2, p1);
hdr = ofs1 - talloc_get_size(p1);
talloc_steal(root, p1);
talloc_steal(root, p2);
talloc_free(pool);
p1_2 = p1;
#if 1 /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
p1_2 = talloc_realloc_size(root, p1, 5 * 16);
torture_assert("pool realloc 5 * 16", p1_2 > p2, "failed: pointer not changed");
memset(p1_2, 0x11, talloc_get_size(p1_2));
ofs1 = PTR_DIFF(p1_2, p2);
ofs2 = talloc_get_size(p2) + hdr;
torture_assert("pool realloc ", ofs1 == ofs2, "failed: pointer offset unexpected");
p2_2 = talloc_realloc_size(root, p2, 3 * 16);
torture_assert("pool realloc 5 * 16", p2_2 == p2, "failed: pointer changed");
memset(p2_2, 0x11, talloc_get_size(p2_2));
#endif /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
talloc_free(p1_2);
p2_2 = p2;
#if 1 /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
/* now we should reclaim the full pool */
p2_2 = talloc_realloc_size(root, p2, 8 * 16);
torture_assert("pool realloc 8 * 16", p2_2 == p1, "failed: pointer not expected");
p2 = p2_2;
memset(p2_2, 0x11, talloc_get_size(p2_2));
/* now we malloc and free the full pool space */
p2_2 = talloc_realloc_size(root, p2, 2 * 1024);
torture_assert("pool realloc 2 * 1024", p2_2 != p1, "failed: pointer not expected");
memset(p2_2, 0x11, talloc_get_size(p2_2));
#endif /* this relies on ALWAYS_REALLOC == 0 in talloc.c */
talloc_free(p2_2);
talloc_free(root);
return true;
}
static bool test_pool_nest(void)
{
void *p1, *p2, *p3;
void *e = talloc_new(NULL);
p1 = talloc_pool(NULL, 1024);
torture_assert("talloc_pool", p1 != NULL, "failed");
p2 = talloc_pool(p1, 500);
torture_assert("talloc_pool", p2 != NULL, "failed");
p3 = talloc_size(p2, 10);
talloc_steal(e, p3);
talloc_free(p2);
talloc_free(p3);
talloc_free(p1);
return true;
}
struct pooled {
char *s1;
char *s2;
char *s3;
};
static bool test_pooled_object(void)
{
struct pooled *p;
const char *s1 = "hello";
const char *s2 = "world";
const char *s3 = "";
p = talloc_pooled_object(NULL, struct pooled, 3,
strlen(s1)+strlen(s2)+strlen(s3)+3);
if (talloc_get_size(p) != sizeof(struct pooled)) {
return false;
}
p->s1 = talloc_strdup(p, s1);
TALLOC_FREE(p->s1);
p->s1 = talloc_strdup(p, s2);
TALLOC_FREE(p->s1);
p->s1 = talloc_strdup(p, s1);
p->s2 = talloc_strdup(p, s2);
p->s3 = talloc_strdup(p, s3);
TALLOC_FREE(p);
return true;
}
static bool test_free_ref_null_context(void)
{
void *p1, *p2, *p3;
int ret;
talloc_disable_null_tracking();
p1 = talloc_new(NULL);
p2 = talloc_new(NULL);
p3 = talloc_reference(p2, p1);
torture_assert("reference", p3 == p1, "failed: reference on null");
ret = talloc_free(p1);
torture_assert("ref free with null parent", ret == 0, "failed: free with null parent");
talloc_free(p2);
talloc_enable_null_tracking_no_autofree();
p1 = talloc_new(NULL);
p2 = talloc_new(NULL);
p3 = talloc_reference(p2, p1);
torture_assert("reference", p3 == p1, "failed: reference on null");
ret = talloc_free(p1);
torture_assert("ref free with null tracked parent", ret == 0, "failed: free with null parent");
talloc_free(p2);
return true;
}
static bool test_rusty(void)
{
void *root;
const char *p1;
talloc_enable_null_tracking();
root = talloc_new(NULL);
p1 = talloc_strdup(root, "foo");
talloc_increase_ref_count(p1);
talloc_report_full(root, stdout);
talloc_free(root);
CHECK_BLOCKS("null_context", NULL, 2);
return true;
}
static bool test_free_children(void)
{
void *root;
char *p1, *p2;
const char *name, *name2;
talloc_enable_null_tracking();
root = talloc_new(NULL);
p1 = talloc_strdup(root, "foo1");
p2 = talloc_strdup(p1, "foo2");
(void)p2;
talloc_set_name(p1, "%s", "testname");
talloc_free_children(p1);
/* check its still a valid talloc ptr */
talloc_get_size(talloc_get_name(p1));
if (strcmp(talloc_get_name(p1), "testname") != 0) {
return false;
}
talloc_set_name(p1, "%s", "testname");
name = talloc_get_name(p1);
talloc_free_children(p1);
/* check its still a valid talloc ptr */
talloc_get_size(talloc_get_name(p1));
torture_assert("name", name == talloc_get_name(p1), "name ptr changed");
torture_assert("namecheck", strcmp(talloc_get_name(p1), "testname") == 0,
"wrong name");
CHECK_BLOCKS("name1", p1, 2);
/* note that this does not free the old child name */
talloc_set_name_const(p1, "testname2");
name2 = talloc_get_name(p1);
/* but this does */
talloc_free_children(p1);
(void)name2;
torture_assert("namecheck", strcmp(talloc_get_name(p1), "testname2") == 0,
"wrong name");
CHECK_BLOCKS("name1", p1, 1);
talloc_report_full(root, stdout);
talloc_free(root);
return true;
}
static bool test_memlimit(void)
{
void *root;
char *l1, *l2, *l3, *l4, *l5, *t;
char *pool;
int i;
printf("test: memlimit\n# MEMORY LIMITS\n");
printf("==== talloc_new(NULL)\n");
root = talloc_new(NULL);
talloc_report_full(root, stdout);
printf("==== talloc_size(root, 2048)\n");
l1 = talloc_size(root, 2048);
torture_assert("memlimit", l1 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_free(l1)\n");
talloc_free(l1);
talloc_report_full(root, stdout);
printf("==== talloc_strdup(root, level 1)\n");
l1 = talloc_strdup(root, "level 1");
torture_assert("memlimit", l1 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_set_memlimit(l1, 2048)\n");
torture_assert("memlimit", talloc_set_memlimit(l1, 2048) == 0,
"failed: setting memlimit should never fail\n");
talloc_report_full(root, stdout);
printf("==== talloc_size(root, 2048)\n");
l2 = talloc_size(l1, 2048);
torture_assert("memlimit", l2 == NULL,
"failed: alloc should fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l1, level 2)\n");
l2 = talloc_strdup(l1, "level 2");
torture_assert("memlimit", l2 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_free(l2)\n");
talloc_free(l2);
talloc_report_full(root, stdout);
printf("==== talloc_size(NULL, 2048)\n");
l2 = talloc_size(NULL, 2048);
talloc_report_full(root, stdout);
printf("==== talloc_steal(l1, l2)\n");
talloc_steal(l1, l2);
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l2, level 3)\n");
l3 = talloc_strdup(l2, "level 3");
torture_assert("memlimit", l3 == NULL,
"failed: alloc should fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_free(l2)\n");
talloc_free(l2);
talloc_report_full(root, stdout);
printf("==== talloc_strdup(NULL, level 2)\n");
l2 = talloc_strdup(NULL, "level 2");
talloc_steal(l1, l2);
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l2, level 3)\n");
l3 = talloc_strdup(l2, "level 3");
torture_assert("memlimit", l3 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_set_memlimit(l3, 1024)\n");
torture_assert("memlimit", talloc_set_memlimit(l3, 1024) == 0,
"failed: setting memlimit should never fail\n");
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l3, level 4)\n");
l4 = talloc_strdup(l3, "level 4");
torture_assert("memlimit", l4 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_set_memlimit(l4, 512)\n");
torture_assert("memlimit", talloc_set_memlimit(l4, 512) == 0,
"failed: setting memlimit should never fail\n");
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l4, level 5)\n");
l5 = talloc_strdup(l4, "level 5");
torture_assert("memlimit", l5 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_realloc(NULL, l5, char, 600)\n");
t = talloc_realloc(NULL, l5, char, 600);
torture_assert("memlimit", t == NULL,
"failed: alloc should fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_realloc(NULL, l5, char, 5)\n");
l5 = talloc_realloc(NULL, l5, char, 5);
torture_assert("memlimit", l5 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l3, level 4)\n");
l4 = talloc_strdup(l3, "level 4");
torture_assert("memlimit", l4 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== talloc_set_memlimit(l4, 512)\n");
torture_assert("memlimit", talloc_set_memlimit(l4, 512) == 0,
"failed: setting memlimit should never fail\n");
talloc_report_full(root, stdout);
printf("==== talloc_strdup(l4, level 5)\n");
l5 = talloc_strdup(l4, "level 5");
torture_assert("memlimit", l5 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
printf("==== Make new temp context and steal l5\n");
t = talloc_new(root);
talloc_steal(t, l5);
talloc_report_full(root, stdout);
printf("==== talloc_size(t, 2048)\n");
l1 = talloc_size(t, 2048);
torture_assert("memlimit", l1 != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_report_full(root, stdout);
talloc_free(root);
/* Test memlimits with pools. */
pool = talloc_pool(NULL, 10*1024);
torture_assert("memlimit", pool != NULL,
"failed: alloc should not fail due to memory limit\n");
talloc_set_memlimit(pool, 10*1024);
for (i = 0; i < 9; i++) {
l1 = talloc_size(pool, 1024);
torture_assert("memlimit", l1 != NULL,
"failed: alloc should not fail due to memory limit\n");
}
/* The next alloc should fail. */
l2 = talloc_size(pool, 1024);
torture_assert("memlimit", l2 == NULL,
"failed: alloc should fail due to memory limit\n");
/* Moving one of the children shouldn't change the limit,
as it's still inside the pool. */
root = talloc_new(NULL);
talloc_steal(root, l1);
l2 = talloc_size(pool, 1024);
torture_assert("memlimit", l2 == NULL,
"failed: alloc should fail due to memory limit\n");
talloc_free(pool);
talloc_free(root);
printf("success: memlimit\n");
return true;
}
#ifdef HAVE_PTHREAD
#define NUM_THREADS 100
/* Sync variables. */
static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t condvar = PTHREAD_COND_INITIALIZER;
static void *intermediate_ptr;
/* Subthread. */
static void *thread_fn(void *arg)
{
int ret;
const char *ctx_name = (const char *)arg;
void *sub_ctx = NULL;
/*
* Do stuff that creates a new talloc hierarchy in
* this thread.
*/
void *top_ctx = talloc_named_const(NULL, 0, "top");
if (top_ctx == NULL) {
return NULL;
}
sub_ctx = talloc_named_const(top_ctx, 100, ctx_name);
if (sub_ctx == NULL) {
return NULL;
}
/*
* Now transfer a pointer from our hierarchy
* onto the intermediate ptr.
*/
ret = pthread_mutex_lock(&mtx);
if (ret != 0) {
talloc_free(top_ctx);
return NULL;
}
/* Wait for intermediate_ptr to be free. */
while (intermediate_ptr != NULL) {
ret = pthread_cond_wait(&condvar, &mtx);
if (ret != 0) {
talloc_free(top_ctx);
ret = pthread_mutex_unlock(&mtx);
assert(ret == 0);
return NULL;
}
}
/* and move our memory onto it from our toplevel hierarchy. */
intermediate_ptr = talloc_move(NULL, &sub_ctx);
/* Tell the main thread it's ready for pickup. */
pthread_cond_broadcast(&condvar);
ret = pthread_mutex_unlock(&mtx);
assert(ret == 0);
talloc_free(top_ctx);
return NULL;
}
/* Main thread. */
static bool test_pthread_talloc_passing(void)
{
int i;
int ret;
char str_array[NUM_THREADS][20];
pthread_t thread_id;
void *mem_ctx;
/*
* Important ! Null tracking breaks threaded talloc.
* It *must* be turned off.
*/
talloc_disable_null_tracking();
printf("test: pthread_talloc_passing\n# PTHREAD TALLOC PASSING\n");
/* Main thread toplevel context. */
mem_ctx = talloc_named_const(NULL, 0, "toplevel");
if (mem_ctx == NULL) {
printf("failed to create toplevel context\n");
return false;
}
/*
* Spin off NUM_THREADS threads.
* They will use their own toplevel contexts.
*/
for (i = 0; i < NUM_THREADS; i++) {
ret = snprintf(str_array[i],
20,
"thread:%d",
i);
if (ret < 0) {
printf("snprintf %d failed\n", i);
return false;
}
ret = pthread_create(&thread_id,
NULL,
thread_fn,
str_array[i]);
if (ret != 0) {
printf("failed to create thread %d (%d)\n", i, ret);
return false;
}
}
printf("Created %d threads\n", NUM_THREADS);
/* Now wait for NUM_THREADS transfers of the talloc'ed memory. */
for (i = 0; i < NUM_THREADS; i++) {
ret = pthread_mutex_lock(&mtx);
if (ret != 0) {
printf("pthread_mutex_lock %d failed (%d)\n", i, ret);
talloc_free(mem_ctx);
return false;
}
/* Wait for intermediate_ptr to have our data. */
while (intermediate_ptr == NULL) {
ret = pthread_cond_wait(&condvar, &mtx);
if (ret != 0) {
printf("pthread_cond_wait %d failed (%d)\n", i,
ret);
talloc_free(mem_ctx);
ret = pthread_mutex_unlock(&mtx);
assert(ret == 0);
}
}
/* and move it onto our toplevel hierarchy. */
(void)talloc_move(mem_ctx, &intermediate_ptr);
/* Tell the sub-threads we're ready for another. */
pthread_cond_broadcast(&condvar);
ret = pthread_mutex_unlock(&mtx);
assert(ret == 0);
}
CHECK_SIZE("pthread_talloc_passing", mem_ctx, NUM_THREADS * 100);
#if 1
/* Dump the hierarchy. */
talloc_report(mem_ctx, stdout);
#endif
talloc_free(mem_ctx);
printf("success: pthread_talloc_passing\n");
return true;
}
#endif
static void test_magic_protection_abort(const char *reason)
{
/* exit with errcode 42 to communicate successful test to the parent process */
if (strcmp(reason, "Bad talloc magic value - unknown value") == 0) {
_exit(42);
} else {
printf("talloc aborted for an unexpected reason\n");
}
}
static int test_magic_protection_destructor(int *ptr)
{
_exit(404); /* Not 42 */
}
static bool test_magic_protection(void)
{
void *pool = talloc_pool(NULL, 1024);
int *p1, *p2;
pid_t pid;
int exit_status;
printf("test: magic_protection\n");
p1 = talloc(pool, int);
p2 = talloc(pool, int);
/* To avoid complaints from the compiler assign values to the p1 & p2. */
*p1 = 6;
*p2 = 9;
pid = fork();
if (pid == 0) {
talloc_set_abort_fn(test_magic_protection_abort);
talloc_set_destructor(p2, test_magic_protection_destructor);
/*
* Simulate a security attack
* by triggering a buffer overflow in memset to overwrite the
* constructor in the next pool chunk.
*
* Real attacks would attempt to set a real destructor.
*/
memset(p1, '\0', 32);
/* Then the attack takes effect when the memory's freed. */
talloc_free(pool);
/* Never reached. Make compilers happy */
return true;
}
while (wait(&exit_status) != pid);
if (!WIFEXITED(exit_status)) {
printf("Child exited through unexpected abnormal means\n");
return false;
}
if (WEXITSTATUS(exit_status) != 42) {
printf("Child exited with wrong exit status\n");
return false;
}
if (WIFSIGNALED(exit_status)) {
printf("Child recieved unexpected signal\n");
return false;
}
printf("success: magic_protection\n");
return true;
}
static void test_magic_free_protection_abort(const char *reason)
{
/* exit with errcode 42 to communicate successful test to the parent process */
if (strcmp(reason, "Bad talloc magic value - access after free") == 0) {
_exit(42);
}
/* not 42 */
_exit(404);
}
static bool test_magic_free_protection(void)
{
void *pool = talloc_pool(NULL, 1024);
int *p1, *p2, *p3;
pid_t pid;
int exit_status;
printf("test: magic_free_protection\n");
p1 = talloc(pool, int);
p2 = talloc(pool, int);
/* To avoid complaints from the compiler assign values to the p1 & p2. */
*p1 = 6;
*p2 = 9;
p3 = talloc_realloc(pool, p2, int, 2048);
torture_assert("pool realloc 2048",
p3 != p2,
"failed: pointer not changed");
/*
* Now access the memory in the pool after the realloc(). It
* should be marked as free, so use of the old pointer should
* trigger the abort function
*/
pid = fork();
if (pid == 0) {
talloc_set_abort_fn(test_magic_free_protection_abort);
talloc_get_name(p2);
/* Never reached. Make compilers happy */
return true;
}
while (wait(&exit_status) != pid);
if (!WIFEXITED(exit_status)) {
printf("Child exited through unexpected abnormal means\n");
return false;
}
if (WEXITSTATUS(exit_status) != 42) {
printf("Child exited with wrong exit status\n");
return false;
}
if (WIFSIGNALED(exit_status)) {
printf("Child recieved unexpected signal\n");
return false;
}
talloc_free(pool);
printf("success: magic_free_protection\n");
return true;
}
static void test_reset(void)
{
talloc_set_log_fn(test_log_stdout);
test_abort_stop();
talloc_disable_null_tracking();
talloc_enable_null_tracking_no_autofree();
}
bool torture_local_talloc(struct torture_context *tctx)
{
bool ret = true;
setlinebuf(stdout);
test_reset();
ret &= test_pooled_object();
test_reset();
ret &= test_pool_nest();
test_reset();
ret &= test_ref1();
test_reset();
ret &= test_ref2();
test_reset();
ret &= test_ref3();
test_reset();
ret &= test_ref4();
test_reset();
ret &= test_unlink1();
test_reset();
ret &= test_misc();
test_reset();
ret &= test_realloc();
test_reset();
ret &= test_realloc_child();
test_reset();
ret &= test_steal();
test_reset();
ret &= test_move();
test_reset();
ret &= test_unref_reparent();
test_reset();
ret &= test_realloc_fn();
test_reset();
ret &= test_type();
test_reset();
ret &= test_lifeless();
test_reset();
ret &= test_loop();
test_reset();
ret &= test_free_parent_deny_child();
test_reset();
ret &= test_realloc_on_destructor_parent();
test_reset();
ret &= test_free_parent_reparent_child();
test_reset();
ret &= test_free_parent_reparent_child_in_pool();
test_reset();
ret &= test_talloc_ptrtype();
test_reset();
ret &= test_talloc_free_in_destructor();
test_reset();
ret &= test_pool();
test_reset();
ret &= test_pool_steal();
test_reset();
ret &= test_free_ref_null_context();
test_reset();
ret &= test_rusty();
test_reset();
ret &= test_free_children();
test_reset();
ret &= test_memlimit();
#ifdef HAVE_PTHREAD
test_reset();
ret &= test_pthread_talloc_passing();
#endif
if (ret) {
test_reset();
ret &= test_speed();
}
test_reset();
ret &= test_autofree();
test_reset();
ret &= test_magic_protection();
test_reset();
ret &= test_magic_free_protection();
test_reset();
talloc_disable_null_tracking();
return ret;
}
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