#include <errno.h>
#include <string.h>
+#include <sys/capability.h>
+
+#include "util.h"
+#include "strv.h"
+#include "bus-util.h"
+#include "bus-errors.h"
#include "logind.h"
#include "logind-session.h"
-#include "dbus-common.h"
-#include "util.h"
+#include "logind-session-device.h"
+
+static int property_get_user(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
-#define BUS_SESSION_INTERFACE \
- " <interface name=\"org.freedesktop.login1.Session\">\n" \
- " <method name=\"Terminate\"/>\n" \
- " <method name=\"Activate\"/>\n" \
- " <method name=\"Lock\"/>\n" \
- " <method name=\"Unlock\"/>\n" \
- " <method name=\"SetIdleHint\">\n" \
- " <arg name=\"b\" type=\"b\"/>\n" \
- " </method>\n" \
- " <method name=\"Kill\">\n" \
- " <arg name=\"who\" type=\"s\"/>\n" \
- " <arg name=\"signal\" type=\"s\"/>\n" \
- " </method>\n" \
- " <signal name=\"Lock\"/>\n" \
- " <signal name=\"Unlock\"/>\n" \
- " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"User\" type=\"(uo)\" access=\"read\"/>\n" \
- " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
- " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
- " <property name=\"DefaultControlGroup\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"VTNr\" type=\"u\" access=\"read\"/>\n" \
- " <property name=\"Seat\" type=\"(so)\" access=\"read\"/>\n" \
- " <property name=\"TTY\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Display\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Remote\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"RemoteHost\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"RemoteUser\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Leader\" type=\"u\" access=\"read\"/>\n" \
- " <property name=\"Audit\" type=\"u\" access=\"read\"/>\n" \
- " <property name=\"Type\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Class\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Active\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
- " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
- " <property name=\"KillProcesses\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
- " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
- " </interface>\n"
-
-#define INTROSPECTION \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>\n" \
- BUS_SESSION_INTERFACE \
- BUS_PROPERTIES_INTERFACE \
- BUS_PEER_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE \
- "</node>\n"
-
-#define INTERFACES_LIST \
- BUS_GENERIC_INTERFACES_LIST \
- "org.freedesktop.login1.Session\0"
-
-static int bus_session_append_seat(DBusMessageIter *i, const char *property, void *data) {
- DBusMessageIter sub;
- Session *s = data;
- const char *id, *path;
- char *p = NULL;
-
- assert(i);
- assert(property);
+ _cleanup_free_ char *p = NULL;
+ Session *s = userdata;
+
+ assert(bus);
+ assert(reply);
assert(s);
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
+ p = user_bus_path(s->user);
+ if (!p)
return -ENOMEM;
- if (s->seat) {
- id = s->seat->id;
- path = p = seat_bus_path(s->seat);
+ return sd_bus_message_append(reply, "(uo)", (uint32_t) s->user->uid, p);
+}
- if (!p)
- return -ENOMEM;
- } else {
- id = "";
- path = "/";
- }
+static int property_get_name(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
- free(p);
- return -ENOMEM;
- }
-
- free(p);
+ Session *s = userdata;
- if (!dbus_message_iter_close_container(i, &sub))
- return -ENOMEM;
+ assert(bus);
+ assert(reply);
+ assert(s);
- return 0;
+ return sd_bus_message_append(reply, "s", s->user->name);
}
-static int bus_session_append_user(DBusMessageIter *i, const char *property, void *data) {
- DBusMessageIter sub;
- User *u = data;
- char *p = NULL;
+static int property_get_seat(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- assert(i);
- assert(property);
- assert(u);
+ _cleanup_free_ char *p = NULL;
+ Session *s = userdata;
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
- return -ENOMEM;
+ assert(bus);
+ assert(reply);
+ assert(s);
- p = user_bus_path(u);
+ p = s->seat ? seat_bus_path(s->seat) : strdup("/");
if (!p)
return -ENOMEM;
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->uid) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
- return -ENOMEM;
- }
+ return sd_bus_message_append(reply, "(so)", s->seat ? s->seat->id : "", p);
+}
- free(p);
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, session_type, SessionType);
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, session_class, SessionClass);
- if (!dbus_message_iter_close_container(i, &sub))
- return -ENOMEM;
+static int property_get_active(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Session *s = userdata;
- return 0;
+ assert(bus);
+ assert(reply);
+ assert(s);
+
+ return sd_bus_message_append(reply, "b", session_is_active(s));
}
-static int bus_session_append_active(DBusMessageIter *i, const char *property, void *data) {
- Session *s = data;
- dbus_bool_t b;
+static int property_get_state(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- assert(i);
- assert(property);
- assert(s);
+ Session *s = userdata;
- b = session_is_active(s);
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
- return -ENOMEM;
+ assert(bus);
+ assert(reply);
+ assert(s);
- return 0;
+ return sd_bus_message_append(reply, "s", session_state_to_string(session_get_state(s)));
}
-static int bus_session_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
- Session *s = data;
- int b;
+static int property_get_idle_hint(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
- assert(i);
- assert(property);
- assert(s);
+ Session *s = userdata;
- b = session_get_idle_hint(s, NULL) > 0;
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
- return -ENOMEM;
+ assert(bus);
+ assert(reply);
+ assert(s);
- return 0;
+ return sd_bus_message_append(reply, "b", session_get_idle_hint(s, NULL) > 0);
}
-static int bus_session_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
- Session *s = data;
+static int property_get_idle_since_hint(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Session *s = userdata;
dual_timestamp t;
uint64_t u;
int r;
- assert(i);
- assert(property);
+ assert(bus);
+ assert(reply);
assert(s);
r = session_get_idle_hint(s, &t);
u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
- return -ENOMEM;
+ return sd_bus_message_append(reply, "t", u);
+}
+
+static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ int r;
- return 0;
+ assert(bus);
+ assert(message);
+ assert(s);
+
+ r = session_stop(s);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
}
-static int bus_session_append_default_cgroup(DBusMessageIter *i, const char *property, void *data) {
- Session *s = data;
- char *t;
+static int method_activate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
int r;
- bool success;
- assert(i);
- assert(property);
+ assert(bus);
+ assert(message);
assert(s);
- r = cg_join_spec(SYSTEMD_CGROUP_CONTROLLER, s->cgroup_path, &t);
+ r = session_activate(s);
if (r < 0)
return r;
- success = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t);
- free(t);
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_lock(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(s);
+
+ r = session_send_lock(s, streq(sd_bus_message_get_member(message), "Lock"));
+ if (r < 0)
+ return r;
- return success ? 0 : -ENOMEM;
+ return sd_bus_reply_method_return(message, NULL);
}
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_type, session_type, SessionType);
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_session_append_class, session_class, SessionClass);
+static int method_set_idle_hint(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ Session *s = userdata;
+ uid_t uid;
+ int r, b;
-static int bus_session_append_state(DBusMessageIter *i, const char *property, void *data) {
- Session *s = data;
- const char *state;
+ assert(bus);
+ assert(message);
+ assert(s);
- assert(i);
- assert(property);
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_uid(creds, &uid);
+ if (r < 0)
+ return r;
+
+ if (uid != 0 && uid != s->user->uid)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session my set idle hint");
+
+ session_set_idle_hint(s, b);
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+ int r;
+
+ assert(bus);
+ assert(message);
assert(s);
- state = session_state_to_string(session_get_state(s));
+ r = sd_bus_message_read(message, "si", &swho, &signo);
+ if (r < 0)
+ return r;
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
- return -ENOMEM;
+ if (isempty(swho))
+ who = KILL_ALL;
+ else {
+ who = kill_who_from_string(swho);
+ if (who < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
- return 0;
+ r = session_kill(s, who, signo);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
}
-static int get_session_for_path(Manager *m, const char *path, Session **_s) {
- Session *s;
- char *id;
+static int method_take_control(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ Session *s = userdata;
+ int r, force;
+ uid_t uid;
- assert(m);
- assert(path);
- assert(_s);
+ assert(bus);
+ assert(message);
+ assert(s);
- if (!startswith(path, "/org/freedesktop/login1/session/"))
- return -EINVAL;
+ r = sd_bus_message_read(message, "b", &force);
+ if (r < 0)
+ return r;
- id = bus_path_unescape(path + 32);
- if (!id)
- return -ENOMEM;
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_uid(creds, &uid);
+ if (r < 0)
+ return r;
- s = hashmap_get(m->sessions, id);
- free(id);
+ if (uid != 0 && (force || uid != s->user->uid))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may take control");
- if (!s)
- return -ENOENT;
+ r = session_set_controller(s, sd_bus_message_get_sender(message), force);
+ if (r < 0)
+ return r;
- *_s = s;
- return 0;
+ return sd_bus_reply_method_return(message, NULL);
}
-static const BusProperty bus_login_session_properties[] = {
- { "Id", bus_property_append_string, "s", offsetof(Session, id), true },
- { "Timestamp", bus_property_append_usec, "t", offsetof(Session, timestamp.realtime) },
- { "TimestampMonotonic", bus_property_append_usec, "t", offsetof(Session, timestamp.monotonic) },
- { "DefaultControlGroup", bus_session_append_default_cgroup, "s", 0, },
- { "VTNr", bus_property_append_uint32, "u", offsetof(Session, vtnr) },
- { "Seat", bus_session_append_seat, "(so)", 0 },
- { "TTY", bus_property_append_string, "s", offsetof(Session, tty), true },
- { "Display", bus_property_append_string, "s", offsetof(Session, display), true },
- { "Remote", bus_property_append_bool, "b", offsetof(Session, remote) },
- { "RemoteUser", bus_property_append_string, "s", offsetof(Session, remote_user), true },
- { "RemoteHost", bus_property_append_string, "s", offsetof(Session, remote_host), true },
- { "Service", bus_property_append_string, "s", offsetof(Session, service), true },
- { "Leader", bus_property_append_pid, "u", offsetof(Session, leader) },
- { "Audit", bus_property_append_uint32, "u", offsetof(Session, audit_id) },
- { "Type", bus_session_append_type, "s", offsetof(Session, type) },
- { "Class", bus_session_append_class, "s", offsetof(Session, class) },
- { "Active", bus_session_append_active, "b", 0 },
- { "State", bus_session_append_state, "s", 0 },
- { "Controllers", bus_property_append_strv, "as", offsetof(Session, controllers), true },
- { "ResetControllers", bus_property_append_strv, "as", offsetof(Session, reset_controllers), true },
- { "KillProcesses", bus_property_append_bool, "b", offsetof(Session, kill_processes) },
- { "IdleHint", bus_session_append_idle_hint, "b", 0 },
- { "IdleSinceHint", bus_session_append_idle_hint_since, "t", 0 },
- { "IdleSinceHintMonotonic", bus_session_append_idle_hint_since, "t", 0 },
- { NULL, }
-};
+static int method_release_control(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
-static const BusProperty bus_login_session_user_properties[] = {
- { "User", bus_session_append_user, "(uo)", 0 },
- { "Name", bus_property_append_string, "s", offsetof(User, name), true },
- { NULL, }
-};
+ assert(bus);
+ assert(message);
+ assert(s);
+
+ if (!session_is_controller(s, sd_bus_message_get_sender(message)))
+ return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session");
+
+ session_drop_controller(s);
-static DBusHandlerResult session_message_dispatch(
- Session *s,
- DBusConnection *connection,
- DBusMessage *message) {
+ return sd_bus_reply_method_return(message, NULL);
+}
- DBusError error;
- _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+static int method_take_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ uint32_t major, minor;
+ SessionDevice *sd;
+ dev_t dev;
int r;
- assert(s);
- assert(connection);
+ assert(bus);
assert(message);
+ assert(s);
- dbus_error_init(&error);
+ r = sd_bus_message_read(message, "uu", &major, &minor);
+ if (r < 0)
+ return r;
- if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Terminate")) {
+ if (!session_is_controller(s, sd_bus_message_get_sender(message)))
+ return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session");
- r = session_stop(s);
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
+ dev = makedev(major, minor);
+ sd = hashmap_get(s->devices, &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 sd_bus_error_setf(error, BUS_ERROR_DEVICE_IS_TAKEN, "Device already taken");
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
+ r = session_device_new(s, dev, &sd);
+ if (r < 0)
+ return r;
- } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Activate")) {
+ r = sd_bus_reply_method_return(message, "hb", sd->fd, !sd->active);
+ if (r < 0)
+ session_device_free(sd);
- r = session_activate(s);
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Lock") ||
- dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Unlock")) {
-
- if (session_send_lock(s, streq(dbus_message_get_member(message), "Lock")) < 0)
- goto oom;
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "SetIdleHint")) {
- dbus_bool_t b;
- unsigned long ul;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_BOOLEAN, &b,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error);
- if (ul == (unsigned long) -1)
- return bus_send_error_reply(connection, message, &error, -EIO);
-
- if (ul != 0 && ul != s->user->uid)
- return bus_send_error_reply(connection, message, NULL, -EPERM);
-
- session_set_idle_hint(s, b);
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Session", "Kill")) {
- const char *swho;
- int32_t signo;
- KillWho who;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &swho,
- DBUS_TYPE_INT32, &signo,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- if (isempty(swho))
- who = KILL_ALL;
- else {
- who = kill_who_from_string(swho);
- if (who < 0)
- return bus_send_error_reply(connection, message, &error, -EINVAL);
- }
+ return r;
+}
- if (signo <= 0 || signo >= _NSIG)
- return bus_send_error_reply(connection, message, &error, -EINVAL);
+static int method_release_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ uint32_t major, minor;
+ SessionDevice *sd;
+ dev_t dev;
+ int r;
- r = session_kill(s, who, signo);
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
+ assert(bus);
+ assert(message);
+ assert(s);
+
+ r = sd_bus_message_read(message, "uu", &major, &minor);
+ if (r < 0)
+ return r;
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
+ if (!session_is_controller(s, sd_bus_message_get_sender(message)))
+ return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session");
- } else {
- const BusBoundProperties bps[] = {
- { "org.freedesktop.login1.Session", bus_login_session_properties, s },
- { "org.freedesktop.login1.Session", bus_login_session_user_properties, s->user },
- { NULL, }
- };
- return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
- }
+ dev = makedev(major, minor);
+ sd = hashmap_get(s->devices, &dev);
+ if (!sd)
+ return sd_bus_error_setf(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken");
- if (reply) {
- if (!bus_maybe_send_reply(connection, message, reply))
- goto oom;
- }
+ session_device_free(sd);
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_pause_device_complete(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Session *s = userdata;
+ uint32_t major, minor;
+ SessionDevice *sd;
+ dev_t dev;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(s);
+
+ r = sd_bus_message_read(message, "uu", &major, &minor);
+ if (r < 0)
+ return r;
- return DBUS_HANDLER_RESULT_HANDLED;
+ if (!session_is_controller(s, sd_bus_message_get_sender(message)))
+ return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session");
-oom:
- dbus_error_free(&error);
+ dev = makedev(major, minor);
+ sd = hashmap_get(s->devices, &dev);
+ if (!sd)
+ return sd_bus_error_setf(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+ session_device_complete_pause(sd);
+
+ return sd_bus_reply_method_return(message, NULL);
}
-static DBusHandlerResult session_message_handler(
- DBusConnection *connection,
- DBusMessage *message,
- void *userdata) {
+const sd_bus_vtable session_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+
+ SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Session, id), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("User", "(uo)", property_get_user, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Name", "s", property_get_name, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Session, timestamp), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("VTNr", "u", NULL, offsetof(Session, vtnr), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Seat", "(so)", property_get_seat, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("TTY", "s", NULL, offsetof(Session, tty), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Display", "s", NULL, offsetof(Session, display), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Remote", "b", bus_property_get_bool, offsetof(Session, remote), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("RemoteHost", "s", NULL, offsetof(Session, remote_host), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("RemoteUser", "s", NULL, offsetof(Session, remote_user), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Session, service), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Session, scope), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Leader", "u", bus_property_get_pid, offsetof(Session, leader), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Audit", "u", NULL, offsetof(Session, audit_id), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Session, type), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Session, class), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Active", "b", property_get_active, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
+ SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+
+ SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("Activate", NULL, NULL, method_activate, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Lock", NULL, NULL, method_lock, 0),
+ SD_BUS_METHOD("Unlock", NULL, NULL, method_lock, 0),
+ SD_BUS_METHOD("SetIdleHint", "b", NULL, method_set_idle_hint, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Kill", "si", NULL, method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("TakeControl", "b", NULL, method_take_control, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("ReleaseControl", NULL, NULL, method_release_control, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("TakeDevice", "uu", "hb", method_take_device, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("ReleaseDevice", "uu", NULL, method_release_device, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("PauseDeviceComplete", "uu", NULL, method_pause_device_complete, SD_BUS_VTABLE_UNPRIVILEGED),
+
+ SD_BUS_SIGNAL("PauseDevice", "uus", 0),
+ SD_BUS_SIGNAL("ResumeDevice", "uuh", 0),
+ SD_BUS_SIGNAL("Lock", NULL, 0),
+ SD_BUS_SIGNAL("Unlock", NULL, 0),
+
+ SD_BUS_VTABLE_END
+};
+int session_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
Manager *m = userdata;
- Session *s;
+ Session *session;
int r;
- r = get_session_for_path(m, dbus_message_get_path(message), &s);
- if (r < 0) {
+ assert(bus);
+ assert(path);
+ assert(interface);
+ assert(found);
+ assert(m);
- if (r == -ENOMEM)
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+ if (streq(path, "/org/freedesktop/login1/session/self")) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ sd_bus_message *message;
+ pid_t pid;
- if (r == -ENOENT) {
- DBusError e;
+ message = sd_bus_get_current(bus);
+ if (!message)
+ return 0;
- dbus_error_init(&e);
- dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown session");
- return bus_send_error_reply(connection, message, &e, r);
- }
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_pid(creds, &pid);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_by_pid(m, pid, &session);
+ if (r <= 0)
+ return 0;
+ } else {
+ _cleanup_free_ char *e = NULL;
+ const char *p;
+
+ p = startswith(path, "/org/freedesktop/login1/session/");
+ if (!p)
+ return 0;
+
+ e = sd_bus_label_unescape(p);
+ if (!e)
+ return -ENOMEM;
- return bus_send_error_reply(connection, message, NULL, r);
+ session = hashmap_get(m->sessions, e);
+ if (!session)
+ return 0;
}
- return session_message_dispatch(s, connection, message);
+ *found = session;
+ return 1;
}
-const DBusObjectPathVTable bus_session_vtable = {
- .message_function = session_message_handler
-};
-
char *session_bus_path(Session *s) {
- char *t, *r;
+ _cleanup_free_ char *t = NULL;
assert(s);
- t = bus_path_escape(s->id);
+ t = sd_bus_label_escape(s->id);
if (!t)
return NULL;
- r = strappend("/org/freedesktop/login1/session/", t);
- free(t);
+ return strappend("/org/freedesktop/login1/session/", t);
+}
+
+int session_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+ _cleanup_strv_free_ char **l = NULL;
+ Manager *m = userdata;
+ Session *session;
+ Iterator i;
+ int r;
- return r;
+ assert(bus);
+ assert(path);
+ assert(nodes);
+
+ HASHMAP_FOREACH(session, m->sessions, i) {
+ char *p;
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ r = strv_push(&l, p);
+ if (r < 0) {
+ free(p);
+ return r;
+ }
+ }
+
+ *nodes = l;
+ l = NULL;
+
+ return 1;
}
int session_send_signal(Session *s, bool new_session) {
- _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
- int r = -ENOMEM;
_cleanup_free_ char *p = NULL;
assert(s);
- m = dbus_message_new_signal("/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- new_session ? "SessionNew" : "SessionRemoved");
-
- if (!m)
- return -ENOMEM;
-
p = session_bus_path(s);
if (!p)
- goto finish;
-
- if (!dbus_message_append_args(
- m,
- DBUS_TYPE_STRING, &s->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_INVALID))
- goto finish;
-
- if (!dbus_connection_send(s->manager->bus, m, NULL))
- goto finish;
-
- r = 0;
+ return -ENOMEM;
-finish:
- return r;
+ return sd_bus_emit_signal(
+ s->manager->bus,
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ new_session ? "SessionNew" : "SessionRemoved",
+ "so", s->id, p);
}
-int session_send_changed(Session *s, const char *properties) {
- _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
- int r = -ENOMEM;
+int session_send_changed(Session *s, const char *properties, ...) {
_cleanup_free_ char *p = NULL;
+ char **l;
assert(s);
if (!p)
return -ENOMEM;
- m = bus_properties_changed_new(p, "org.freedesktop.login1.Session", properties);
- if (!m)
- goto finish;
+ l = strv_from_stdarg_alloca(properties);
- if (!dbus_connection_send(s->manager->bus, m, NULL))
- goto finish;
-
- r = 0;
-
-finish:
- return r;
+ return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Session", l);
}
int session_send_lock(Session *s, bool lock) {
- _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
- bool b;
_cleanup_free_ char *p = NULL;
assert(s);
if (!p)
return -ENOMEM;
- m = dbus_message_new_signal(p, "org.freedesktop.login1.Session", lock ? "Lock" : "Unlock");
-
- if (!m)
- return -ENOMEM;
-
- b = dbus_connection_send(s->manager->bus, m, NULL);
- if (!b)
- return -ENOMEM;
-
- return 0;
+ return sd_bus_emit_signal(
+ s->manager->bus,
+ p,
+ "org.freedesktop.login1.Session",
+ lock ? "Lock" : "Unlock",
+ NULL);
}
int session_send_lock_all(Manager *m, bool lock) {
return r;
}
+
+int session_send_create_reply(Session *s, sd_bus_error *error) {
+ _cleanup_bus_message_unref_ sd_bus_message *c = NULL;
+ _cleanup_close_ int fifo_fd = -1;
+ _cleanup_free_ char *p = NULL;
+
+ assert(s);
+
+ /* This is called after the session scope was successfully
+ * created, and finishes where bus_manager_create_session()
+ * left off. */
+
+ if (!s->create_message)
+ return 0;
+
+ c = s->create_message;
+ s->create_message = NULL;
+
+ if (error)
+ return sd_bus_reply_method_error(c, error);
+
+ fifo_fd = session_create_fifo(s);
+ if (fifo_fd < 0)
+ return fifo_fd;
+
+ /* Update the session state file before we notify the client
+ * about the result. */
+ session_save(s);
+
+ p = session_bus_path(s);
+ if (!p)
+ return -ENOMEM;
+
+ log_debug("Sending reply about created session: "
+ "id=%s object_path=%s runtime_path=%s session_fd=%d seat=%s vtnr=%u",
+ s->id,
+ p,
+ s->user->runtime_path,
+ fifo_fd,
+ s->seat ? s->seat->id : "",
+ (uint32_t) s->vtnr);
+
+ return sd_bus_reply_method_return(
+ c, "soshusub",
+ s->id,
+ p,
+ s->user->runtime_path,
+ fifo_fd,
+ (uint32_t) s->user->uid,
+ s->seat ? s->seat->id : "",
+ (uint32_t) s->vtnr,
+ false);
+}
~ianmdlvl / elogind.git / blobdiff