journal-gatewayd: query PID 1 for virtalization

Since journal-gatewayd is now running unprivileged, and detecting
virtalization requires privileges, query PID1 via D-Bus for the used
virtualization.

This is also the first time we use libsystemd-bus for more than just
testing.

https://bugs.freedesktop.org/show_bug.cgi?id=62173

1 files changed, 153 insertions, 0 deletions

diff --git a/src/systemd/sd-bus-protocol.h b/src/systemd/sd-bus-protocol.h
new file mode 100644
index 0000000000..7922f6b702
--- /dev/null
+++ b/src/systemd/sd-bus-protocol.h
@@ -0,0 +1,153 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foosdbusprotocolhfoo
+#define foosdbusprotocolhfoo
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Lennart Poettering
+
+  systemd 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 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <endian.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Types of message */
+
+enum {
+        _SD_BUS_MESSAGE_TYPE_INVALID = 0,
+        SD_BUS_MESSAGE_TYPE_METHOD_CALL,
+        SD_BUS_MESSAGE_TYPE_METHOD_RETURN,
+        SD_BUS_MESSAGE_TYPE_METHOD_ERROR,
+        SD_BUS_MESSAGE_TYPE_SIGNAL,
+        _SD_BUS_MESSAGE_TYPE_MAX
+};
+
+/* Primitive types */
+
+enum {
+        _SD_BUS_TYPE_INVALID         = 0,
+        SD_BUS_TYPE_BYTE             = 'y',
+        SD_BUS_TYPE_BOOLEAN          = 'b',
+        SD_BUS_TYPE_INT16            = 'n',
+        SD_BUS_TYPE_UINT16           = 'q',
+        SD_BUS_TYPE_INT32            = 'i',
+        SD_BUS_TYPE_UINT32           = 'u',
+        SD_BUS_TYPE_INT64            = 'x',
+        SD_BUS_TYPE_UINT64           = 't',
+        SD_BUS_TYPE_DOUBLE           = 'd',
+        SD_BUS_TYPE_STRING           = 's',
+        SD_BUS_TYPE_OBJECT_PATH      = 'o',
+        SD_BUS_TYPE_SIGNATURE        = 'g',
+        SD_BUS_TYPE_UNIX_FD          = 'h',
+        SD_BUS_TYPE_ARRAY            = 'a',
+        SD_BUS_TYPE_VARIANT          = 'v',
+        SD_BUS_TYPE_STRUCT           = 'r', /* not actually used in signatures */
+        SD_BUS_TYPE_STRUCT_BEGIN     = '(',
+        SD_BUS_TYPE_STRUCT_END       = ')',
+        SD_BUS_TYPE_DICT_ENTRY       = 'e', /* not actually used in signatures */
+        SD_BUS_TYPE_DICT_ENTRY_BEGIN = '{',
+        SD_BUS_TYPE_DICT_ENTRY_END   = '}',
+};
+
+/* Endianess */
+
+enum {
+        _SD_BUS_INVALID_ENDIAN = 0,
+        SD_BUS_LITTLE_ENDIAN   = 'l',
+        SD_BUS_BIG_ENDIAN      = 'B',
+#if __BYTE_ORDER == __BIG_ENDIAN
+        SD_BUS_NATIVE_ENDIAN   = SD_BUS_BIG_ENDIAN,
+        SD_BUS_REVERSE_ENDIAN  = SD_BUS_LITTLE_ENDIAN
+#else
+        SD_BUS_NATIVE_ENDIAN   = SD_BUS_LITTLE_ENDIAN,
+        SD_BUS_REVERSE_ENDIAN  = SD_BUS_BIG_ENDIAN
+#endif
+};
+
+/* Flags */
+
+enum {
+        SD_BUS_MESSAGE_NO_REPLY_EXPECTED = 1,
+        SD_BUS_MESSAGE_NO_AUTO_START = 2
+};
+
+/* Header fields */
+
+enum {
+        _SD_BUS_MESSAGE_HEADER_INVALID = 0,
+        SD_BUS_MESSAGE_HEADER_PATH,
+        SD_BUS_MESSAGE_HEADER_INTERFACE,
+        SD_BUS_MESSAGE_HEADER_MEMBER,
+        SD_BUS_MESSAGE_HEADER_ERROR_NAME,
+        SD_BUS_MESSAGE_HEADER_REPLY_SERIAL,
+        SD_BUS_MESSAGE_HEADER_DESTINATION,
+        SD_BUS_MESSAGE_HEADER_SENDER,
+        SD_BUS_MESSAGE_HEADER_SIGNATURE,
+        SD_BUS_MESSAGE_HEADER_UNIX_FDS,
+        _SD_BUS_MESSAGE_HEADER_MAX
+};
+
+#define SD_BUS_INTROSPECT_DOCTYPE                                       \
+        "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\"\n" \
+        "\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
+
+#define SD_BUS_INTROSPECT_INTERFACE_PROPERTIES                          \
+        " <interface name=\"org.freedesktop.DBus.Properties\">\n"       \
+        "  <method name=\"Get\">\n"                                     \
+        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
+        "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
+        "   <arg name=\"value\" direction=\"out\" type=\"v\"/>\n"       \
+        "  </method>\n"                                                 \
+        "  <method name=\"GetAll\">\n"                                  \
+        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
+        "   <arg name=\"properties\" direction=\"out\" type=\"a{sv}\"/>\n" \
+        "  </method>\n"                                                 \
+        "  <method name=\"Set\">\n"                                     \
+        "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
+        "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
+        "   <arg name=\"value\" direction=\"in\" type=\"v\"/>\n"        \
+        "  </method>\n"                                                 \
+        "  <signal name=\"PropertiesChanged\">\n"                       \
+        "   <arg type=\"s\" name=\"interface\"/>\n"                     \
+        "   <arg type=\"a{sv}\" name=\"changed_properties\"/>\n"        \
+        "   <arg type=\"as\" name=\"invalidated_properties\"/>\n"       \
+        "  </signal>\n"                                                 \
+        " </interface>\n"
+
+#define SD_BUS_INTROSPECT_INTERFACE_INTROSPECTABLE                      \
+        " <interface name=\"org.freedesktop.DBus.Introspectable\">\n"   \
+        "  <method name=\"Introspect\">\n"                              \
+        "   <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"        \
+        "  </method>\n"                                                 \
+        " </interface>\n"
+
+#define SD_BUS_INTROSPECT_INTERFACE_PEER                                \
+        "<interface name=\"org.freedesktop.DBus.Peer\">\n"              \
+        " <method name=\"Ping\"/>\n"                                    \
+        " <method name=\"GetMachineId\">\n"                             \
+        "  <arg type=\"s\" name=\"machine_uuid\" direction=\"out\"/>\n" \
+        " </method>\n"                                                  \
+        "</interface>\n"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif