diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:47:29 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:47:29 +0000 |
commit | 4f5791ebd03eaec1c7da0865a383175b05102712 (patch) | |
tree | 8ce7b00f7a76baa386372422adebbe64510812d4 /lib/talloc/testsuite.c | |
parent | Initial commit. (diff) | |
download | samba-4f5791ebd03eaec1c7da0865a383175b05102712.tar.xz samba-4f5791ebd03eaec1c7da0865a383175b05102712.zip |
Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/talloc/testsuite.c | 2288 |
1 files changed, 2288 insertions, 0 deletions
diff --git a/lib/talloc/testsuite.c b/lib/talloc/testsuite.c new file mode 100644 index 0000000..282ebc6 --- /dev/null +++ b/lib/talloc/testsuite.c @@ -0,0 +1,2288 @@ +/* + 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) { /* OK, both NULL == equal */ \ + } else if (arg1 == NULL || arg2 == NULL) { \ + return false; \ + } 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"); + talloc_free(top); /* make ASAN happy */ + + 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); + + talloc_free(level3); /* make ASAN happy */ + + 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)); + + 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)); + + 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; + + 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)); + + talloc_free(p1_2); + + p2_2 = p2; + + /* 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)); + + 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); + + talloc_free(e); /* make ASAN happy */ + + 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; + 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); + talloc_free(p1); /* make ASAN happy */ + + 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. */ + printf("==== talloc_pool(NULL, 10*1024)\n"); + pool = talloc_pool(NULL, 10*1024); + torture_assert("memlimit", pool != NULL, + "failed: alloc should not fail due to memory limit\n"); + + printf("==== talloc_set_memlimit(pool, 10*1024)\n"); + talloc_set_memlimit(pool, 10*1024); + for (i = 0; i < 9; i++) { + printf("==== talloc_size(pool, 1024) %i/10\n", i + 1); + l1 = talloc_size(pool, 1024); + torture_assert("memlimit", l1 != NULL, + "failed: alloc should not fail due to memory limit\n"); + talloc_report_full(pool, stdout); + } + /* The next alloc should fail. */ + printf("==== talloc_size(pool, 1024) 10/10\n"); + l2 = talloc_size(pool, 1024); + torture_assert("memlimit", l2 == NULL, + "failed: alloc should fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + /* Moving one of the children shouldn't change the limit, + as it's still inside the pool. */ + + printf("==== talloc_new(NULL)\n"); + root = talloc_new(NULL); + + printf("==== talloc_steal(root, l1)\n"); + talloc_steal(root, l1); + + printf("==== talloc_size(pool, 1024)\n"); + l2 = talloc_size(pool, 1024); + torture_assert("memlimit", l2 == NULL, + "failed: alloc should fail due to memory limit\n"); + + printf("==== talloc_free_children(pool)\n"); + talloc_free(l1); + talloc_free_children(pool); + + printf("==== talloc_size(pool, 1024)\n"); + l1 = talloc_size(pool, 1024); + + /* try reallocs of increasing size */ + for (i = 1; i < 9; i++) { + printf("==== talloc_realloc_size(NULL, l1, %i*1024) %i/10\n", i, i + 1); + l1 = talloc_realloc_size(NULL, l1, i*1024); + torture_assert("memlimit", l1 != NULL, + "failed: realloc should not fail due to memory limit\n"); + talloc_report_full(pool, stdout); + } + /* The next alloc should fail. */ + printf("==== talloc_realloc_size(NULL, l1, 10*1024) 10/10\n"); + l2 = talloc_realloc_size(NULL, l1, 10*1024); + torture_assert("memlimit", l2 == NULL, + "failed: realloc should fail due to memory limit\n"); + + /* Increase the memlimit */ + printf("==== talloc_set_memlimit(pool, 11*1024)\n"); + talloc_set_memlimit(pool, 11*1024); + + /* The final realloc should still fail + as the entire realloced chunk needs to be moved out of the pool */ + printf("==== talloc_realloc_size(NULL, l1, 10*1024) 10/10\n"); + l2 = talloc_realloc_size(NULL, l1, 10*1024); + torture_assert("memlimit", l2 == NULL, + "failed: realloc should fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + printf("==== talloc_set_memlimit(pool, 21*1024)\n"); + talloc_set_memlimit(pool, 21*1024); + + /* There's now sufficient space to move the chunk out of the pool */ + printf("==== talloc_realloc_size(NULL, l1, 10*1024) 10/10\n"); + l2 = talloc_realloc_size(NULL, l1, 10*1024); + torture_assert("memlimit", l2 != NULL, + "failed: realloc should not fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + /* ...which should mean smaller allocations can now occur within the pool */ + printf("==== talloc_size(pool, 9*1024)\n"); + l1 = talloc_size(pool, 9*1024); + torture_assert("memlimit", l1 != NULL, + "failed: new allocations should be allowed in the pool\n"); + + talloc_report_full(pool, stdout); + + /* But reallocs bigger than the pool will still fail */ + printf("==== talloc_realloc_size(NULL, l1, 10*1024)\n"); + l2 = talloc_realloc_size(NULL, l1, 10*1024); + torture_assert("memlimit", l2 == NULL, + "failed: realloc should fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + /* ..as well as allocs */ + printf("==== talloc_size(pool, 1024)\n"); + l1 = talloc_size(pool, 1024); + torture_assert("memlimit", l1 == NULL, + "failed: alloc should fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + printf("==== talloc_free_children(pool)\n"); + talloc_free_children(pool); + + printf("==== talloc_set_memlimit(pool, 1024)\n"); + talloc_set_memlimit(pool, 1024); + + /* We should still be able to allocate up to the pool limit + because the memlimit only applies to new heap allocations */ + printf("==== talloc_size(pool, 9*1024)\n"); + l1 = talloc_size(pool, 9*1024); + torture_assert("memlimit", l1 != NULL, + "failed: alloc should not fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + l1 = talloc_size(pool, 1024); + torture_assert("memlimit", l1 == NULL, + "failed: alloc should fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + printf("==== talloc_free_children(pool)\n"); + talloc_free_children(pool); + + printf("==== talloc_set_memlimit(pool, 10*1024)\n"); + talloc_set_memlimit(pool, 10*1024); + + printf("==== talloc_size(pool, 1024)\n"); + l1 = talloc_size(pool, 1024); + torture_assert("memlimit", l1 != NULL, + "failed: alloc should not fail due to memory limit\n"); + + talloc_report_full(pool, stdout); + + 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); + + talloc_free(pool); /* make ASAN happy */ + + 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 received 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 received 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; +} |