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dbus: expose Virtualization ID on PID1's bus interface

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This allows unprivileged clients to check for the used virtualization
even when lacking the privileges that some of the virtualization tests
require.

https://bugzilla.gnome.org/show_bug.cgi?id=684801
This commit is contained in:
Lennart Poettering 2012-10-04 14:08:17 -04:00
parent b03bfa212d
commit dfae3488f7
1 changed files with 50 additions and 31 deletions
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81
src/core/dbus-manager.c
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@ -35,6 +35,7 @@
#include "hwclock.h"
#include "path-util.h"
#include "dbus-unit.h"
#include "virt.h"
#define BUS_MANAGER_INTERFACE_BEGIN \
" <interface name=\"org.freedesktop.systemd1.Manager\">\n"
@ -258,7 +259,8 @@
" <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"RuntimeWatchdogUSec\" type=\"s\" access=\"readwrite\"/>\n" \
" <property name=\"ShutdownWatchdogUSec\" type=\"s\" access=\"readwrite\"/>\n"
" <property name=\"ShutdownWatchdogUSec\" type=\"s\" access=\"readwrite\"/>\n" \
" <property name=\"Virtualization\" type=\"s\" access=\"read\"/>\n"
#define BUS_MANAGER_INTERFACE_END \
" </interface>\n"
@ -425,6 +427,22 @@ static int bus_manager_append_progress(DBusMessageIter *i, const char *property,
return 0;
}
static int bus_manager_append_virt(DBusMessageIter *i, const char *property, void *data) {
Manager *m = data;
const char *id = "";
assert(i);
assert(property);
assert(m);
detect_virtualization(&id);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &id))
return -ENOMEM;
return 0;
}
static DBusMessage *message_from_file_changes(
DBusMessage *m,
UnitFileChange *changes,
@ -515,36 +533,37 @@ static const BusProperty bus_systemd_properties[] = {
};
static const BusProperty bus_manager_properties[] = {
{ "Tainted", bus_manager_append_tainted, "s", 0 },
{ "FirmwareTimestamp", bus_property_append_uint64, "t", offsetof(Manager, firmware_timestamp.realtime) },
{ "FirmwareTimestampMonotonic", bus_property_append_uint64,"t", offsetof(Manager, firmware_timestamp.monotonic)},
{ "LoaderTimestamp", bus_property_append_uint64, "t", offsetof(Manager, loader_timestamp.realtime) },
{ "LoaderTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, loader_timestamp.monotonic) },
{ "KernelTimestamp", bus_property_append_uint64, "t", offsetof(Manager, kernel_timestamp.realtime) },
{ "KernelTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, kernel_timestamp.monotonic) },
{ "InitRDTimestamp", bus_property_append_uint64, "t", offsetof(Manager, initrd_timestamp.realtime) },
{ "InitRDTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, initrd_timestamp.monotonic) },
{ "UserspaceTimestamp", bus_property_append_uint64, "t", offsetof(Manager, userspace_timestamp.realtime)},
{ "UserspaceTimestampMonotonic", bus_property_append_uint64,"t",offsetof(Manager, userspace_timestamp.monotonic)},
{ "FinishTimestamp", bus_property_append_uint64, "t", offsetof(Manager, finish_timestamp.realtime) },
{ "FinishTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, finish_timestamp.monotonic) },
{ "LogLevel", bus_manager_append_log_level, "s", 0, false, bus_manager_set_log_level },
{ "LogTarget", bus_manager_append_log_target, "s", 0, false, bus_manager_set_log_target },
{ "NNames", bus_manager_append_n_names, "u", 0 },
{ "NJobs", bus_manager_append_n_jobs, "u", 0 },
{ "NInstalledJobs",bus_property_append_uint32, "u", offsetof(Manager, n_installed_jobs) },
{ "NFailedJobs", bus_property_append_uint32, "u", offsetof(Manager, n_failed_jobs) },
{ "Progress", bus_manager_append_progress, "d", 0 },
{ "Environment", bus_property_append_strv, "as", offsetof(Manager, environment), true },
{ "ConfirmSpawn", bus_property_append_bool, "b", offsetof(Manager, confirm_spawn) },
{ "ShowStatus", bus_property_append_bool, "b", offsetof(Manager, show_status) },
{ "UnitPath", bus_property_append_strv, "as", offsetof(Manager, lookup_paths.unit_path), true },
{ "ControlGroupHierarchy", bus_property_append_string, "s", offsetof(Manager, cgroup_hierarchy), true },
{ "DefaultControllers", bus_property_append_strv, "as", offsetof(Manager, default_controllers), true },
{ "DefaultStandardOutput", bus_manager_append_exec_output, "s", offsetof(Manager, default_std_output) },
{ "DefaultStandardError", bus_manager_append_exec_output, "s", offsetof(Manager, default_std_error) },
{ "RuntimeWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, runtime_watchdog), false, bus_manager_set_runtime_watchdog_usec },
{ "ShutdownWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, shutdown_watchdog), false, bus_property_set_usec },
{ "Tainted", bus_manager_append_tainted, "s", 0 },
{ "FirmwareTimestamp", bus_property_append_uint64, "t", offsetof(Manager, firmware_timestamp.realtime) },
{ "FirmwareTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, firmware_timestamp.monotonic) },
{ "LoaderTimestamp", bus_property_append_uint64, "t", offsetof(Manager, loader_timestamp.realtime) },
{ "LoaderTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, loader_timestamp.monotonic) },
{ "KernelTimestamp", bus_property_append_uint64, "t", offsetof(Manager, kernel_timestamp.realtime) },
{ "KernelTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, kernel_timestamp.monotonic) },
{ "InitRDTimestamp", bus_property_append_uint64, "t", offsetof(Manager, initrd_timestamp.realtime) },
{ "InitRDTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, initrd_timestamp.monotonic) },
{ "UserspaceTimestamp", bus_property_append_uint64, "t", offsetof(Manager, userspace_timestamp.realtime) },
{ "UserspaceTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, userspace_timestamp.monotonic) },
{ "FinishTimestamp", bus_property_append_uint64, "t", offsetof(Manager, finish_timestamp.realtime) },
{ "FinishTimestampMonotonic", bus_property_append_uint64, "t", offsetof(Manager, finish_timestamp.monotonic) },
{ "LogLevel", bus_manager_append_log_level, "s", 0, false, bus_manager_set_log_level },
{ "LogTarget", bus_manager_append_log_target, "s", 0, false, bus_manager_set_log_target },
{ "NNames", bus_manager_append_n_names, "u", 0 },
{ "NJobs", bus_manager_append_n_jobs, "u", 0 },
{ "NInstalledJobs", bus_property_append_uint32, "u", offsetof(Manager, n_installed_jobs) },
{ "NFailedJobs", bus_property_append_uint32, "u", offsetof(Manager, n_failed_jobs) },
{ "Progress", bus_manager_append_progress, "d", 0 },
{ "Environment", bus_property_append_strv, "as", offsetof(Manager, environment), true },
{ "ConfirmSpawn", bus_property_append_bool, "b", offsetof(Manager, confirm_spawn) },
{ "ShowStatus", bus_property_append_bool, "b", offsetof(Manager, show_status) },
{ "UnitPath", bus_property_append_strv, "as", offsetof(Manager, lookup_paths.unit_path), true },
{ "ControlGroupHierarchy", bus_property_append_string, "s", offsetof(Manager, cgroup_hierarchy), true },
{ "DefaultControllers", bus_property_append_strv, "as", offsetof(Manager, default_controllers), true },
{ "DefaultStandardOutput", bus_manager_append_exec_output, "s", offsetof(Manager, default_std_output) },
{ "DefaultStandardError", bus_manager_append_exec_output, "s", offsetof(Manager, default_std_error) },
{ "RuntimeWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, runtime_watchdog), false, bus_manager_set_runtime_watchdog_usec },
{ "ShutdownWatchdogUSec", bus_property_append_usec, "t", offsetof(Manager, shutdown_watchdog), false, bus_property_set_usec },
{ "Virtualization", bus_manager_append_virt, "s", 0, },
{ NULL, }
};