+
+ return LDB_SUCCESS;
+}
+
+static int setup_primary_kerberos_newer(struct setup_password_fields_io *io,
+ const struct supplementalCredentialsBlob *old_scb,
+ struct package_PrimaryKerberosBlob *pkb)
+{
+ struct ldb_context *ldb;
+ struct package_PrimaryKerberosCtr4 *pkb4 = &pkb->ctr.ctr4;
+ struct supplementalCredentialsPackage *old_scp = NULL;
+ struct package_PrimaryKerberosBlob _old_pkb;
+ struct package_PrimaryKerberosCtr4 *old_pkb4 = NULL;
+ uint32_t i;
+ enum ndr_err_code ndr_err;
+
+ ldb = ldb_module_get_ctx(io->ac->module);
+
+ /*
+ * prepare generation of keys
+ *
+ * ENCTYPE_AES256_CTS_HMAC_SHA1_96
+ * ENCTYPE_AES128_CTS_HMAC_SHA1_96
+ * ENCTYPE_DES_CBC_MD5
+ * ENCTYPE_DES_CBC_CRC
+ */
+ pkb->version = 4;
+ pkb4->salt.string = io->g.salt;
+ pkb4->default_iteration_count = 4096;
+ pkb4->num_keys = 4;
+
+ pkb4->keys = talloc_array(io->ac,
+ struct package_PrimaryKerberosKey4,
+ pkb4->num_keys);
+ if (!pkb4->keys) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ pkb4->keys[0].iteration_count = 4096;
+ pkb4->keys[0].keytype = ENCTYPE_AES256_CTS_HMAC_SHA1_96;
+ pkb4->keys[0].value = &io->g.aes_256;
+ pkb4->keys[1].iteration_count = 4096;
+ pkb4->keys[1].keytype = ENCTYPE_AES128_CTS_HMAC_SHA1_96;
+ pkb4->keys[1].value = &io->g.aes_128;
+ pkb4->keys[2].iteration_count = 4096;
+ pkb4->keys[2].keytype = ENCTYPE_DES_CBC_MD5;
+ pkb4->keys[2].value = &io->g.des_md5;
+ pkb4->keys[3].iteration_count = 4096;
+ pkb4->keys[3].keytype = ENCTYPE_DES_CBC_CRC;
+ pkb4->keys[3].value = &io->g.des_crc;
+
+ /* initialize the old keys to zero */
+ pkb4->num_old_keys = 0;
+ pkb4->old_keys = NULL;
+ pkb4->num_older_keys = 0;
+ pkb4->older_keys = NULL;
+
+ /* if there're no old keys, then we're done */
+ if (!old_scb) {
+ return LDB_SUCCESS;
+ }
+
+ for (i=0; i < old_scb->sub.num_packages; i++) {
+ if (strcmp("Primary:Kerberos-Newer-Keys", old_scb->sub.packages[i].name) != 0) {
+ continue;
+ }
+
+ if (!old_scb->sub.packages[i].data || !old_scb->sub.packages[i].data[0]) {
+ continue;
+ }
+
+ old_scp = &old_scb->sub.packages[i];
+ break;
+ }
+ /* Primary:Kerberos-Newer-Keys element of supplementalCredentials */
+ if (old_scp) {
+ DATA_BLOB blob;
+
+ blob = strhex_to_data_blob(io->ac, old_scp->data);
+ if (!blob.data) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* TODO: use ndr_pull_struct_blob_all(), when the ndr layer handles it correct with relative pointers */
+ ndr_err = ndr_pull_struct_blob(&blob, io->ac,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
+ &_old_pkb,
+ (ndr_pull_flags_fn_t)ndr_pull_package_PrimaryKerberosBlob);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+ ldb_asprintf_errstring(ldb,
+ "setup_primary_kerberos_newer: "
+ "failed to pull old package_PrimaryKerberosBlob: %s",
+ nt_errstr(status));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (_old_pkb.version != 4) {
+ ldb_asprintf_errstring(ldb,
+ "setup_primary_kerberos_newer: "
+ "package_PrimaryKerberosBlob version[%u] expected[4]",
+ _old_pkb.version);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ old_pkb4 = &_old_pkb.ctr.ctr4;
+ }
+
+ /* if we didn't found the old keys we're done */
+ if (!old_pkb4) {
+ return LDB_SUCCESS;
+ }
+
+ /* fill in the old keys */
+ pkb4->num_old_keys = old_pkb4->num_keys;
+ pkb4->old_keys = old_pkb4->keys;
+ pkb4->num_older_keys = old_pkb4->num_old_keys;
+ pkb4->older_keys = old_pkb4->old_keys;
git.samba.org / samba.git / blobdiff