diff options
Diffstat (limited to 'src/login/logind-session-dbus.c')
| -rw-r--r-- | src/login/logind-session-dbus.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c index 35bf4480cb..f793f99b77 100644 --- a/src/login/logind-session-dbus.c +++ b/src/login/logind-session-dbus.c @@ -24,6 +24,7 @@ #include "logind.h" #include "logind-session.h" +#include "logind-session-device.h" #include "dbus-common.h" #include "util.h" @@ -44,6 +45,30 @@ " <arg name=\"force\" type=\"b\"/>\n" \ " </method>\n" \ " <method name=\"ReleaseControl\"/>\n" \ + " <method name=\"TakeDevice\">\n" \ + " <arg name=\"major\" type=\"u\" direction=\"in\"/>\n" \ + " <arg name=\"minor\" type=\"u\" direction=\"in\"/>\n" \ + " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \ + " <arg name=\"paused\" type=\"b\" direction=\"out\"/>\n" \ + " </method>\n" \ + " <method name=\"ReleaseDevice\">\n" \ + " <arg name=\"major\" type=\"u\"/>\n" \ + " <arg name=\"minor\" type=\"u\"/>\n" \ + " </method>\n" \ + " <method name=\"PauseDeviceComplete\">\n" \ + " <arg name=\"major\" type=\"u\"/>\n" \ + " <arg name=\"minor\" type=\"u\"/>\n" \ + " </method>\n" \ + " <signal name=\"PauseDevice\">\n" \ + " <arg name=\"major\" type=\"u\"/>\n" \ + " <arg name=\"minor\" type=\"u\"/>\n" \ + " <arg name=\"type\" type=\"s\"/>\n" \ + " </signal>\n" \ + " <signal name=\"ResumeDevice\">\n" \ + " <arg name=\"major\" type=\"u\"/>\n" \ + " <arg name=\"minor\" type=\"u\"/>\n" \ + " <arg name=\"fd\" type=\"h\"/>\n" \ + " </signal>\n" \ " <signal name=\"Lock\"/>\n" \ " <signal name=\"Unlock\"/>\n" \ " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \ @@ -408,6 +433,107 @@ static DBusHandlerResult session_message_dispatch( if (!reply) goto oom; + } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "TakeDevice")) { + SessionDevice *sd; + bool b; + dbus_bool_t paused; + uint32_t major, minor; + dev_t dev; + + if (!session_is_controller(s, bus_message_get_sender_with_fallback(message))) + return bus_send_error_reply(connection, message, NULL, -EPERM); + + if (!dbus_message_get_args( + message, + &error, + DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) + return bus_send_error_reply(connection, message, &error, -EINVAL); + + dev = makedev(major, minor); + assert_cc(sizeof(unsigned long) >= sizeof(dev_t)); + + sd = hashmap_get(s->devices, ULONG_TO_PTR((unsigned long)dev)); + if (sd) { + /* We don't allow retrieving a device multiple times. + * The related ReleaseDevice call is not ref-counted. + * The caller should use dup() if it requires more than + * one fd (it would be functionally equivalent). */ + return bus_send_error_reply(connection, message, &error, -EBUSY); + } + + r = session_device_new(s, dev, &sd); + if (r < 0) + return bus_send_error_reply(connection, message, NULL, r); + + reply = dbus_message_new_method_return(message); + if (!reply) { + session_device_free(sd); + goto oom; + } + + paused = !sd->active; + b = dbus_message_append_args( + reply, + DBUS_TYPE_UNIX_FD, &sd->fd, + DBUS_TYPE_BOOLEAN, &paused, + DBUS_TYPE_INVALID); + if (!b) { + session_device_free(sd); + return bus_send_error_reply(connection, message, NULL, -ENOMEM); + } + + } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "ReleaseDevice")) { + SessionDevice *sd; + uint32_t major, minor; + + if (!session_is_controller(s, bus_message_get_sender_with_fallback(message))) + return bus_send_error_reply(connection, message, NULL, -EPERM); + + if (!dbus_message_get_args( + message, + &error, + DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) + return bus_send_error_reply(connection, message, &error, -EINVAL); + + sd = hashmap_get(s->devices, ULONG_TO_PTR((unsigned long)makedev(major, minor))); + if (!sd) + return bus_send_error_reply(connection, message, NULL, -ENODEV); + + session_device_free(sd); + + reply = dbus_message_new_method_return(message); + if (!reply) + goto oom; + + } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "PauseDeviceComplete")) { + SessionDevice *sd; + uint32_t major, minor; + + if (!session_is_controller(s, bus_message_get_sender_with_fallback(message))) + return bus_send_error_reply(connection, message, NULL, -EPERM); + + if (!dbus_message_get_args( + message, + &error, + DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) + return bus_send_error_reply(connection, message, &error, -EINVAL); + + sd = hashmap_get(s->devices, ULONG_TO_PTR((unsigned long)makedev(major, minor))); + if (!sd) + return bus_send_error_reply(connection, message, NULL, -ENODEV); + + session_device_complete_pause(sd); + + reply = dbus_message_new_method_return(message); + if (!reply) + goto oom; + } else { const BusBoundProperties bps[] = { { "org.freedesktop.login1.Session", bus_login_session_properties, s }, |