source3/registry/tests/test_regfio.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  *
   4  * Copyright (C) 2019      Michael Hanselmann <public@hansmi.ch>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <stdarg.h>
  21 #include <stddef.h>
  22 #include <setjmp.h>
  23 #include <stdint.h>
  24 #include <cmocka.h>
  25
  26 #include <errno.h>
  27 #include <stdlib.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <fcntl.h>
  31
  32 #include "includes.h"
  33 #include "lib/replace/replace.h"
  34 #include "system/filesys.h"
  35 #include "lib/util/samba_util.h"
  36 #include "registry/regfio.h"
  37
  38 struct test_ctx {
  39         char *tmp_regfile;
  40         int tmp_regfile_fd;
  41         REGF_FILE *rb;
  42 };
  43
  44 static int setup_context(void **state)
  45 {
  46         struct test_ctx *test_ctx;
  47
  48         test_ctx = talloc_zero(NULL, struct test_ctx);
  49         assert_non_null(test_ctx);
  50
  51         test_ctx->tmp_regfile_fd  = -1;
  52
  53         *state = test_ctx;
  54
  55         return 0;
  56 }
  57
  58 static int setup_context_tempfile(void **state)
  59 {
  60         struct test_ctx *test_ctx;
  61         int ret;
  62
  63         ret = setup_context(state);
  64
  65         if (ret == 0) {
  66                 test_ctx = talloc_get_type_abort(*state, struct test_ctx);
  67
  68                 test_ctx->tmp_regfile = talloc_strdup(test_ctx, "/tmp/regfio.XXXXXX");
  69                 assert_non_null(test_ctx->tmp_regfile);
  70
  71                 test_ctx->tmp_regfile_fd = mkstemp(test_ctx->tmp_regfile);
  72                 assert_return_code(test_ctx->tmp_regfile_fd, errno);
  73         }
  74
  75         return ret;
  76 }
  77
  78 static int teardown_context(void **state)
  79 {
  80         struct test_ctx *test_ctx =
  81                 talloc_get_type_abort(*state, struct test_ctx);
  82
  83         if (test_ctx->rb) {
  84                 regfio_close(test_ctx->rb);
  85         }
  86
  87         if (test_ctx->tmp_regfile) {
  88                 unlink(test_ctx->tmp_regfile);
  89         }
  90
  91         if (test_ctx->tmp_regfile_fd != -1) {
  92                 close(test_ctx->tmp_regfile_fd);
  93         }
  94
  95         talloc_free(test_ctx);
  96
  97         return 0;
  98 }
  99
 100 static void open_testfile(struct test_ctx *test_ctx, const char *filename)
 101 {
 102         char *path;
 103
 104         path = talloc_asprintf(test_ctx, "%s/testdata/samba3/%s", SRCDIR, filename);
 105         assert_non_null(path);
 106
 107         test_ctx->rb = regfio_open(path, O_RDONLY, 0600);
 108         assert_non_null(test_ctx->rb);
 109 }
 110
 111 static void test_regfio_open_new_file(void **state)
 112 {
 113         struct test_ctx *test_ctx =
 114                 talloc_get_type_abort(*state, struct test_ctx);
 115         REGF_NK_REC *root;
 116         struct regval_ctr *values;
 117         struct regsubkey_ctr *subkeys;
 118         WERROR werr;
 119
 120         test_ctx->rb = regfio_open(test_ctx->tmp_regfile,
 121                                    O_RDWR | O_CREAT | O_TRUNC, 0600);
 122         assert_non_null(test_ctx->rb);
 123
 124         root = regfio_rootkey(test_ctx->rb);
 125         assert_null(root);
 126
 127         werr = regsubkey_ctr_init(NULL, &subkeys);
 128         assert_true(W_ERROR_IS_OK(werr));
 129
 130         werr = regval_ctr_init(subkeys, &values);
 131         assert_true(W_ERROR_IS_OK(werr));
 132
 133         /* Write root key */
 134         regfio_write_key(test_ctx->rb, "", values, subkeys, NULL, NULL);
 135
 136         root = regfio_rootkey(test_ctx->rb);
 137         assert_non_null(root);
 138         assert_memory_equal(root->header, "nk", sizeof(root->header));
 139         assert_int_equal(root->key_type, NK_TYPE_ROOTKEY);
 140 }
 141
 142 static void test_regfio_corrupt_hbin(void **state)
 143 {
 144         struct test_ctx *test_ctx =
 145                 talloc_get_type_abort(*state, struct test_ctx);
 146         REGF_NK_REC *root;
 147
 148         open_testfile(test_ctx, "regfio_corrupt_hbin1.dat");
 149
 150         root = regfio_rootkey(test_ctx->rb);
 151         assert_null(root);
 152 }
 153
 154 static void test_regfio_corrupt_lf_subkeys(void **state)
 155 {
 156         struct test_ctx *test_ctx =
 157                 talloc_get_type_abort(*state, struct test_ctx);
 158         REGF_NK_REC *root, *subkey;
 159
 160         open_testfile(test_ctx, "regfio_corrupt_lf_subkeys.dat");
 161
 162         root = regfio_rootkey(test_ctx->rb);
 163         assert_non_null(root);
 164
 165         root->subkey_index = 0;
 166         while ((subkey = regfio_fetch_subkey(test_ctx->rb, root))) {
 167         }
 168 }
 169
 170 int main(void) {
 171         const struct CMUnitTest tests[] = {
 172                 cmocka_unit_test_setup_teardown(test_regfio_open_new_file,
 173                                                 setup_context_tempfile,
 174                                                 teardown_context),
 175                 cmocka_unit_test_setup_teardown(test_regfio_corrupt_hbin,
 176                                                 setup_context,
 177                                                 teardown_context),
 178                 cmocka_unit_test_setup_teardown(test_regfio_corrupt_lf_subkeys,
 179                                                 setup_context,
 180                                                 teardown_context),
 181         };
 182
 183         cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
 184
 185         return cmocka_run_group_tests(tests, NULL, NULL);
 186 }