sysprofd: start on port to GDBusConnection

This will help us reduce a lot of code and eventually make some things more asynchronous to allow for interactive authorization.
2025-12-31 20:36:25 +00:00 · 2019-05-08 18:45:05 -07:00
parent 46d3c553e5
commit ed48eadd08
8 changed files with 308 additions and 648 deletions
--- a/src/sysprofd/ipc-service-impl.c
+++ b/src/sysprofd/ipc-service-impl.c
@ -0,0 +1,135 @@
+/* ipc-service-impl.c
+ *
+ * Copyright 2019 Christian Hergert <chergert@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#define G_LOG_DOMAIN "ipc-service-impl"
+
+#include "config.h"
+
+#include "ipc-service-impl.h"
+
+struct _IpcServiceImpl
+{
+  IpcServiceSkeleton parent_instance;
+};
+
+static gboolean
+ipc_service_impl_handle_list_processes (IpcService            *service,
+                                        GDBusMethodInvocation *invocation)
+{
+  g_autoptr(GDir) dir = NULL;
+  g_autoptr(GArray) pids = NULL;
+  const gchar *name;
+
+  g_assert (IPC_IS_SERVICE_IMPL (service));
+  g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
+
+  if (!(dir = g_dir_open ("/proc/", 0, NULL)))
+    {
+      g_dbus_method_invocation_return_error (g_steal_pointer (&invocation),
+                                             G_DBUS_ERROR,
+                                             G_DBUS_ERROR_FILE_NOT_FOUND,
+                                             "Failed to access /proc");
+      return TRUE;
+    }
+
+  pids = g_array_new (FALSE, FALSE, sizeof (gint32));
+
+  while ((name = g_dir_read_name (dir)))
+    {
+      if (g_ascii_isalnum (*name))
+        {
+          gchar *endptr = NULL;
+          gint64 val = g_ascii_strtoll (name, &endptr, 10);
+
+          if (endptr != NULL && *endptr == 0 && val < G_MAXINT && val >= 0)
+            {
+              gint32 v32 = val;
+              g_array_append_val (pids, v32);
+            }
+        }
+    }
+
+  ipc_service_complete_list_processes (service,
+                                       g_steal_pointer (&invocation),
+                                       g_variant_new_fixed_array (G_VARIANT_TYPE_INT32,
+                                                                  pids->data,
+                                                                  pids->len,
+                                                                  sizeof (gint32)));
+
+  return TRUE;
+}
+
+static gboolean
+ipc_service_impl_handle_get_proc_file (IpcService            *service,
+                                       GDBusMethodInvocation *invocation,
+                                       const gchar           *path)
+{
+  g_autofree gchar *canon = NULL;
+  g_autofree gchar *contents = NULL;
+  gsize len;
+
+  g_assert (IPC_IS_SERVICE_IMPL (service));
+  g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
+
+  canon = g_canonicalize_filename (path, "/proc/");
+
+  if (!g_str_has_prefix (canon, "/proc/"))
+    g_dbus_method_invocation_return_error (g_steal_pointer (&invocation),
+                                           G_DBUS_ERROR,
+                                           G_DBUS_ERROR_ACCESS_DENIED,
+                                           "File is not within /proc/");
+  else if (!g_file_get_contents (canon, &contents, &len, NULL))
+    g_dbus_method_invocation_return_error (g_steal_pointer (&invocation),
+                                           G_DBUS_ERROR,
+                                           G_DBUS_ERROR_FILE_NOT_FOUND,
+                                           "Failed to locate the file");
+  else
+    ipc_service_complete_get_proc_file (service,
+                                        g_steal_pointer (&invocation),
+                                        contents);
+
+  return TRUE;
+}
+
+static void
+init_service_iface (IpcServiceIface *iface)
+{
+  iface->handle_list_processes = ipc_service_impl_handle_list_processes;
+  iface->handle_get_proc_file = ipc_service_impl_handle_get_proc_file;
+}
+
+G_DEFINE_TYPE_WITH_CODE (IpcServiceImpl, ipc_service_impl, IPC_TYPE_SERVICE_SKELETON,
+                         G_IMPLEMENT_INTERFACE (IPC_TYPE_SERVICE, init_service_iface))
+
+static void
+ipc_service_impl_class_init (IpcServiceImplClass *klass)
+{
+}
+
+static void
+ipc_service_impl_init (IpcServiceImpl *self)
+{
+}
+
+IpcService *
+ipc_service_impl_new (void)
+{
+  return g_object_new (IPC_TYPE_SERVICE_IMPL, NULL);
+}