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Diffstat (limited to 'src/login/logind-dbus.c')
-rw-r--r--src/login/logind-dbus.c449
1 files changed, 438 insertions, 11 deletions
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 4a84b860f1..631006924f 100644
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -36,6 +36,8 @@
#include "systemd/sd-messages.h"
#include "fileio-label.h"
#include "label.h"
+#include "utf8.h"
+#include "unit-name.h"
#define BUS_MANAGER_INTERFACE \
" <interface name=\"org.freedesktop.login1.Manager\">\n" \
@@ -51,10 +53,22 @@
" <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
" <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
" </method>\n" \
+ " <method name=\"GetUserByPID\">\n" \
+ " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
" <method name=\"GetSeat\">\n" \
" <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
" <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
" </method>\n" \
+ " <method name=\"GetMachine\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
+ " <method name=\"GetMachineByPID\">\n" \
+ " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
" <method name=\"ListSessions\">\n" \
" <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
" </method>\n" \
@@ -64,6 +78,9 @@
" <method name=\"ListSeats\">\n" \
" <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
" </method>\n" \
+ " <method name=\"ListMachines\">\n" \
+ " <arg name=\"machines\" type=\"a(ssso)\" direction=\"out\"/>\n" \
+ " </method>\n" \
" <method name=\"CreateSession\">\n" \
" <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
" <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
@@ -91,6 +108,16 @@
" <method name=\"ReleaseSession\">\n" \
" <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
" </method>\n" \
+ " <method name=\"CreateMachine\">\n" \
+ " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"id\" type=\"ay\" direction=\"in\"/>\n" \
+ " <arg name=\"service\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"class\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
+ " <arg name=\"slice\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"root_directory\" type=\"s\" direction=\"in\"/>\n" \
+ " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
+ " </method>\n" \
" <method name=\"ActivateSession\">\n" \
" <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
" </method>\n" \
@@ -124,6 +151,9 @@
" <method name=\"TerminateSeat\">\n" \
" <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
" </method>\n" \
+ " <method name=\"TerminateMachine\">\n" \
+ " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
+ " </method>\n" \
" <method name=\"SetUserLinger\">\n" \
" <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
" <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
@@ -201,13 +231,20 @@
" <arg name=\"id\" type=\"s\"/>\n" \
" <arg name=\"path\" type=\"o\"/>\n" \
" </signal>\n" \
+ " <signal name=\"MachineNew\">\n" \
+ " <arg name=\"machine\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
+ " <signal name=\"MachineRemoved\">\n" \
+ " <arg name=\"machine\" type=\"s\"/>\n" \
+ " <arg name=\"path\" type=\"o\"/>\n" \
+ " </signal>\n" \
" <signal name=\"PrepareForShutdown\">\n" \
" <arg name=\"active\" type=\"b\"/>\n" \
" </signal>\n" \
" <signal name=\"PrepareForSleep\">\n" \
" <arg name=\"active\" type=\"b\"/>\n" \
" </signal>\n" \
- " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
" <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
" <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
@@ -342,8 +379,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
dbus_message_iter_get_basic(&iter, &leader);
- if (leader <= 0 ||
- !dbus_message_iter_next(&iter) ||
+ if (!dbus_message_iter_next(&iter) ||
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
return -EINVAL;
@@ -507,6 +543,12 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
dbus_message_iter_get_basic(&iter, &kill_processes);
+ if (leader <= 0) {
+ leader = bus_get_unix_process_id(m->bus, dbus_message_get_sender(message), NULL);
+ if (leader == 0)
+ return -EINVAL;
+ }
+
r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, leader, &cgroup);
if (r < 0)
goto fail;
@@ -601,10 +643,12 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
if (r < 0)
goto fail;
- r = manager_add_session(m, user, id, &session);
+ r = manager_add_session(m, id, &session);
if (r < 0)
goto fail;
+ session_set_user(session, user);
+
session->leader = leader;
session->audit_id = audit_id;
session->type = t;
@@ -718,6 +762,183 @@ fail:
return r;
}
+static bool valid_machine_name(const char *p) {
+ size_t l;
+
+ if (!filename_is_safe(p))
+ return false;
+
+ if (!ascii_is_valid(p))
+ return false;
+
+ l = strlen(p);
+
+ if (l < 1 || l> 64)
+ return false;
+
+ return true;
+}
+
+static int bus_manager_create_machine(
+ Manager *manager,
+ DBusMessage *message,
+ DBusMessage **_reply) {
+
+ const char *name, *service, *class, *slice, *root_directory;
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ _cleanup_free_ char *p = NULL;
+ DBusMessageIter iter, sub;
+ MachineClass c;
+ uint32_t leader;
+ sd_id128_t id;
+ dbus_bool_t b;
+ Machine *m;
+ int n, r;
+ void *v;
+
+ assert(manager);
+ assert(message);
+ assert(_reply);
+
+ if (!dbus_message_iter_init(message, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &name);
+
+ if (!valid_machine_name(name) ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(&iter, &sub);
+ dbus_message_iter_get_fixed_array(&sub, &v, &n);
+
+ if (n == 0)
+ id = SD_ID128_NULL;
+ else if (n == 16)
+ memcpy(&id, v, n);
+ else
+ return -EINVAL;
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &service);
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &class);
+
+ if (isempty(class))
+ c = _MACHINE_CLASS_INVALID;
+ else {
+ c = machine_class_from_string(class);
+ if (c < 0)
+ return -EINVAL;
+ }
+
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &leader);
+ if (!dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &slice);
+ if (!(isempty(slice) || (unit_name_is_valid(slice, false) && endswith(slice, ".slice"))) ||
+ !dbus_message_iter_next(&iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(&iter, &root_directory);
+
+ if (!(isempty(root_directory) || path_is_absolute(root_directory)))
+ return -EINVAL;
+
+ if (hashmap_get(manager->machines, name))
+ return -EEXIST;
+
+ if (leader <= 0) {
+ leader = bus_get_unix_process_id(manager->bus, dbus_message_get_sender(message), NULL);
+ if (leader == 0)
+ return -EINVAL;
+ }
+
+ r = manager_add_machine(manager, name, &m);
+ if (r < 0)
+ goto fail;
+
+ m->leader = leader;
+ m->class = c;
+ m->id = id;
+
+ if (!isempty(service)) {
+ m->service = strdup(service);
+ if (!m->service) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(slice)) {
+ m->slice = strdup(slice);
+ if (!m->slice) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(root_directory)) {
+ m->root_directory = strdup(root_directory);
+ if (!m->root_directory) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ r = machine_start(m);
+ if (r < 0)
+ goto fail;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ p = machine_bus_path(m);
+ if (!p) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ if (!b) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ *_reply = reply;
+ reply = NULL;
+ return 0;
+
+fail:
+ if (m)
+ machine_add_to_gc_queue(m);
+
+ return r;
+}
+
static int bus_manager_inhibit(
Manager *m,
DBusConnection *connection,
@@ -1387,7 +1608,6 @@ static int bus_manager_do_shutdown_or_sleep(
static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_handle_action, handle_action, HandleAction);
static const BusProperty bus_login_manager_properties[] = {
- { "ControlGroupHierarchy", bus_property_append_string, "s", offsetof(Manager, cgroup_path), true },
{ "Controllers", bus_property_append_strv, "as", offsetof(Manager, controllers), true },
{ "ResetControllers", bus_property_append_strv, "as", offsetof(Manager, reset_controllers), true },
{ "NAutoVTs", bus_property_append_unsigned, "u", offsetof(Manager, n_autovts) },
@@ -1530,6 +1750,107 @@ static DBusHandlerResult manager_message_handler(
if (!b)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUserByPID")) {
+ uint32_t pid;
+ char *p;
+ User *user;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &pid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = manager_get_user_by_pid(m, pid, &user);
+ if (r <= 0)
+ return bus_send_error_reply(connection, message, NULL, r < 0 ? r : -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = user_bus_path(user);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetMachine")) {
+ Machine *machine;
+ const char *name;
+ char *p;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetMachineByPID")) {
+ uint32_t pid;
+ char *p;
+ Machine *machine;
+ bool b;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_UINT32, &pid,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ r = manager_get_machine_by_pid(m, pid, &machine);
+ if (r <= 0)
+ return bus_send_error_reply(connection, message, NULL, r < 0 ? r : -ENOENT);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_OBJECT_PATH, &p,
+ DBUS_TYPE_INVALID);
+ free(p);
+
+ if (!b)
+ goto oom;
+
} else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
const char *name;
char *p;
@@ -1612,7 +1933,6 @@ static DBusHandlerResult manager_message_handler(
goto oom;
} else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
- char *p;
User *user;
Iterator i;
DBusMessageIter iter, sub;
@@ -1627,6 +1947,7 @@ static DBusHandlerResult manager_message_handler(
goto oom;
HASHMAP_FOREACH(user, m->users, i) {
+ _cleanup_free_ char *p = NULL;
DBusMessageIter sub2;
uint32_t uid;
@@ -1646,8 +1967,6 @@ static DBusHandlerResult manager_message_handler(
goto oom;
}
- free(p);
-
if (!dbus_message_iter_close_container(&sub, &sub2))
goto oom;
}
@@ -1656,7 +1975,6 @@ static DBusHandlerResult manager_message_handler(
goto oom;
} else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
- char *p;
Seat *seat;
Iterator i;
DBusMessageIter iter, sub;
@@ -1671,6 +1989,7 @@ static DBusHandlerResult manager_message_handler(
goto oom;
HASHMAP_FOREACH(seat, m->seats, i) {
+ _cleanup_free_ char *p = NULL;
DBusMessageIter sub2;
if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
@@ -1686,8 +2005,6 @@ static DBusHandlerResult manager_message_handler(
goto oom;
}
- free(p);
-
if (!dbus_message_iter_close_container(&sub, &sub2))
goto oom;
}
@@ -1739,6 +2056,49 @@ static DBusHandlerResult manager_message_handler(
if (!dbus_message_iter_close_container(&iter, &sub))
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListMachines")) {
+ Machine *machine;
+ Iterator i;
+ DBusMessageIter iter, sub;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssso)", &sub))
+ goto oom;
+
+ HASHMAP_FOREACH(machine, m->machines, i) {
+ _cleanup_free_ char *p = NULL;
+ DBusMessageIter sub2;
+ const char *class;
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
+ goto oom;
+
+ p = machine_bus_path(machine);
+ if (!p)
+ goto oom;
+
+ class = strempty(machine_class_to_string(machine->class));
+
+ if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->name) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &class) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->service) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
+ free(p);
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ goto oom;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub))
+ goto oom;
+
} else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "Inhibit")) {
r = bus_manager_inhibit(m, connection, message, &error, &reply);
@@ -1758,6 +2118,11 @@ static DBusHandlerResult manager_message_handler(
if (r < 0)
return bus_send_error_reply(connection, message, NULL, r);
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateMachine")) {
+
+ r = bus_manager_create_machine(m, message, &reply);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, NULL, r);
} else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ReleaseSession")) {
const char *name;
@@ -1945,6 +2310,45 @@ static DBusHandlerResult manager_message_handler(
if (!reply)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillMachine")) {
+ const char *swho;
+ int32_t signo;
+ KillWho who;
+ const char *name;
+ Machine *machine;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ 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);
+ }
+
+ if (signo <= 0 || signo >= _NSIG)
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = machine_kill(machine, who, signo);
+ 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.Manager", "TerminateSession")) {
const char *name;
Session *session;
@@ -2014,6 +2418,29 @@ static DBusHandlerResult manager_message_handler(
if (!reply)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateMachine")) {
+ const char *name;
+ Machine *machine;
+
+ if (!dbus_message_get_args(
+ message,
+ &error,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return bus_send_error_reply(connection, message, &error, -EINVAL);
+
+ machine = hashmap_get(m->machines, name);
+ if (!machine)
+ return bus_send_error_reply(connection, message, &error, -ENOENT);
+
+ r = machine_stop(machine);
+ 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.Manager", "SetUserLinger")) {
uint32_t uid;
struct passwd *pw;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-22 18:58:06 +0000