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-rw-r--r--source3/rpc_server/srv_spoolss_util.c71
-rw-r--r--source3/rpc_server/srv_spoolss_util.h19
2 files changed, 90 insertions, 0 deletions
diff --git a/source3/rpc_server/srv_spoolss_util.c b/source3/rpc_server/srv_spoolss_util.c
index 3e35eb98ff..95f292a5a3 100644
--- a/source3/rpc_server/srv_spoolss_util.c
+++ b/source3/rpc_server/srv_spoolss_util.c
@@ -1450,6 +1450,77 @@ done:
return result;
}
+WERROR winreg_printer_get_changeid(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info *server_info,
+ const char *printer,
+ uint32_t *pchangeid)
+{
+ uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
+ struct rpc_pipe_client *winreg_pipe = NULL;
+ struct policy_handle hive_hnd, key_hnd;
+ uint32_t changeid = 0;
+ char *path;
+ WERROR result;
+ TALLOC_CTX *tmp_ctx;
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ return WERR_NOMEM;
+ }
+
+ path = winreg_printer_data_keyname(tmp_ctx, printer);
+ if (path == NULL) {
+ TALLOC_FREE(tmp_ctx);
+ return WERR_NOMEM;
+ }
+
+ ZERO_STRUCT(hive_hnd);
+ ZERO_STRUCT(key_hnd);
+
+ result = winreg_printer_openkey(tmp_ctx,
+ server_info,
+ &winreg_pipe,
+ path,
+ "",
+ false,
+ access_mask,
+ &hive_hnd,
+ &key_hnd);
+ if (!W_ERROR_IS_OK(result)) {
+ DEBUG(0, ("winreg_printer_get_changeid: Could not open key %s: %s\n",
+ path, win_errstr(result)));
+ goto done;
+ }
+
+ DEBUG(0, ("winreg_printer_get_changeid: get changeid from %s\n", path));
+ result = winreg_printer_query_dword(tmp_ctx,
+ winreg_pipe,
+ &key_hnd,
+ "ChangeID",
+ &changeid);
+ if (!W_ERROR_IS_OK(result)) {
+ goto done;
+ }
+
+ if (pchangeid) {
+ *pchangeid = changeid;
+ }
+
+ result = WERR_OK;
+done:
+ if (winreg_pipe != NULL) {
+ if (is_valid_policy_hnd(&key_hnd)) {
+ rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &key_hnd, NULL);
+ }
+ if (is_valid_policy_hnd(&hive_hnd)) {
+ rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &hive_hnd, NULL);
+ }
+ }
+
+ TALLOC_FREE(tmp_ctx);
+ return result;
+}
+
/*
* The special behaviour of the spoolss forms is documented at the website:
*
diff --git a/source3/rpc_server/srv_spoolss_util.h b/source3/rpc_server/srv_spoolss_util.h
index e8cea01495..a4b5c88271 100644
--- a/source3/rpc_server/srv_spoolss_util.h
+++ b/source3/rpc_server/srv_spoolss_util.h
@@ -211,6 +211,25 @@ WERROR winreg_printer_update_changeid(TALLOC_CTX *mem_ctx,
const char *printer);
/**
+ * @brief Get the ChangeID of the given printer.
+ *
+ * @param[in] mem_ctx The talloc memory context to use.
+ *
+ * @param[in] server_info The server supplied session info.
+ *
+ * @param[in] printer The printer name.
+ *
+ * @param[in] changeid A pointer to store the changeid.
+ *
+ * @return On success WERR_OK, a corresponding DOS error is
+ * something went wrong.
+ */
+WERROR winreg_printer_get_changeid(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info *server_info,
+ const char *printer,
+ uint32_t *pchangeid);
+
+/**
* @internal
*
* @brief This function adds a form to the list of available forms that can be