static int kbdctx_locale_get_all_fn(sd_bus *bus,
sd_bus_message *m,
void *userdata,
sd_bus_error *ret_err) {
kbdctx *kc = userdata;
int r;
kc->slot_locale_get_all = sd_bus_slot_unref(kc->slot_locale_get_all);
if (sd_bus_message_is_method_error(m, NULL)) {
const sd_bus_error *error = sd_bus_message_get_error(m);
log_debug("idev-keyboard: GetAll() on locale1 failed: %s: %s",
error->name, error->message);
return 0;
}
r = bus_message_map_all_properties(bus, m, kbdctx_locale_map, kc);
if (r < 0) {
log_debug("idev-keyboard: erroneous GetAll() reply from locale1");
return 0;
}
kbdctx_refresh_keymap(kc);
return 0;
}
static int session_take_control_fn(sd_bus *bus,
sd_bus_message *reply,
void *userdata,
sd_bus_error *ret_error) {
sysview_session *session = userdata;
int r, error;
session->slot_take_control = sd_bus_slot_unref(session->slot_take_control);
if (sd_bus_message_is_method_error(reply, NULL)) {
const sd_bus_error *e = sd_bus_message_get_error(reply);
log_debug("sysview: %s: TakeControl failed: %s: %s",
session->name, e->name, e->message);
error = -sd_bus_error_get_errno(e);
} else {
session->has_control = true;
error = 0;
}
r = context_raise_session_control(session->seat->context, session, error);
if (r < 0)
log_debug_errno(r, "sysview: callback failed while signalling session control '%d' on session '%s': %m",
error, session->name);
return 0;
}
static int object_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
int r;
if (sd_bus_message_is_method_error(m, NULL))
return 0;
if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) {
log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m));
r = sd_bus_reply_method_return(m, NULL);
if (r < 0)
return log_error_errno(r, "Failed to send reply: %m");
return 1;
}
return 0;
}
static int session_take_control_fn(sd_bus *bus,
sd_bus_message *reply,
void *userdata,
sd_bus_error *ret_error) {
sysview_session *session = userdata;
int error;
session->slot_take_control = sd_bus_slot_unref(session->slot_take_control);
if (sd_bus_message_is_method_error(reply, NULL)) {
const sd_bus_error *e = sd_bus_message_get_error(reply);
log_debug("sysview: %s: TakeControl failed: %s: %s",
session->name, e->name, e->message);
error = sd_bus_error_get_errno(e);
} else {
session->has_control = true;
error = 0;
}
return context_raise_session_control(session->seat->context, session, error);
}
int bus_verify_polkit_async(
sd_bus_message *call,
int capability,
const char *action,
bool interactive,
Hashmap **registry,
sd_bus_error *error) {
#ifdef ENABLE_POLKIT
_cleanup_bus_message_unref_ sd_bus_message *pk = NULL;
AsyncPolkitQuery *q;
const char *sender;
sd_bus_message_handler_t callback;
void *userdata;
#endif
int r;
assert(call);
assert(action);
assert(registry);
#ifdef ENABLE_POLKIT
q = hashmap_get(*registry, call);
if (q) {
int authorized, challenge;
/* This is the second invocation of this function, and
* there's already a response from polkit, let's
* process it */
assert(q->reply);
if (sd_bus_message_is_method_error(q->reply, NULL)) {
const sd_bus_error *e;
/* Copy error from polkit reply */
e = sd_bus_message_get_error(q->reply);
sd_bus_error_copy(error, e);
/* Treat no PK available as access denied */
if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN))
return -EACCES;
return -sd_bus_error_get_errno(e);
}
r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}");
if (r >= 0)
r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge);
if (r < 0)
return r;
if (authorized)
return 1;
return -EACCES;
}
#endif
r = sd_bus_query_sender_privilege(call, capability);
if (r < 0)
return r;
else if (r > 0)
return 1;
#ifdef ENABLE_POLKIT
if (sd_bus_get_current_message(call->bus) != call)
return -EINVAL;
callback = sd_bus_get_current_handler(call->bus);
if (!callback)
return -EINVAL;
userdata = sd_bus_get_current_userdata(call->bus);
sender = sd_bus_message_get_sender(call);
if (!sender)
return -EBADMSG;
r = hashmap_ensure_allocated(registry, trivial_hash_func, trivial_compare_func);
if (r < 0)
return r;
r = sd_bus_message_new_method_call(
call->bus,
&pk,
"org.freedesktop.PolicyKit1",
"/org/freedesktop/PolicyKit1/Authority",
"org.freedesktop.PolicyKit1.Authority",
"CheckAuthorization");
if (r < 0)
return r;
r = sd_bus_message_append(
pk,
"(sa{sv})sa{ss}us",
"system-bus-name", 1, "name", "s", sender,
action,
0,
interactive ? 1 : 0,
NULL);
if (r < 0)
return r;
q = new0(AsyncPolkitQuery, 1);
if (!q)
return -ENOMEM;
q->request = sd_bus_message_ref(call);
q->callback = callback;
q->userdata = userdata;
r = hashmap_put(*registry, call, q);
if (r < 0) {
async_polkit_query_free(q);
return r;
}
q->registry = *registry;
r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0);
if (r < 0) {
async_polkit_query_free(q);
return r;
}
return 0;
#endif
return -EACCES;
}
int bus_verify_polkit_async(
sd_bus *bus,
Hashmap **registry,
sd_bus_message *m,
const char *action,
bool interactive,
sd_bus_error *error,
sd_bus_message_handler_t callback,
void *userdata) {
#ifdef ENABLE_POLKIT
_cleanup_bus_message_unref_ sd_bus_message *pk = NULL;
AsyncPolkitQuery *q;
#endif
const char *sender;
uid_t uid;
int r;
assert(bus);
assert(registry);
assert(m);
assert(action);
#ifdef ENABLE_POLKIT
q = hashmap_remove(*registry, m);
if (q) {
unsigned authorized, challenge;
/* This is the second invocation of this function, and
* there's already a response from polkit, let's
* process it */
assert(q->reply);
if (sd_bus_message_is_method_error(q->reply, NULL)) {
const sd_bus_error *e;
/* Treat no PK available as access denied */
if (sd_bus_message_is_method_error(q->reply, SD_BUS_ERROR_SERVICE_UNKNOWN)) {
async_polkit_query_free(bus, q);
return -EACCES;
}
e = sd_bus_message_get_error(q->reply);
sd_bus_error_copy(error, e);
r = sd_bus_error_get_errno(e);
async_polkit_query_free(bus, q);
return r;
}
r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}");
if (r >= 0)
r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge);
async_polkit_query_free(bus, q);
if (r < 0)
return r;
if (authorized)
return 1;
return -EACCES;
}
#endif
sender = sd_bus_message_get_sender(m);
if (!sender)
return -EBADMSG;
r = sd_bus_get_owner_uid(bus, sender, &uid);
if (r < 0)
return r;
if (uid == 0)
return 1;
#ifdef ENABLE_POLKIT
r = hashmap_ensure_allocated(registry, trivial_hash_func, trivial_compare_func);
if (r < 0)
return r;
r = sd_bus_message_new_method_call(
bus,
"org.freedesktop.PolicyKit1",
"/org/freedesktop/PolicyKit1/Authority",
"org.freedesktop.PolicyKit1.Authority",
"CheckAuthorization",
&pk);
if (r < 0)
return r;
r = sd_bus_message_append(
pk,
"(sa{sv})sa{ss}us",
"system-bus-name", 1, "name", "s", sender,
action,
0,
interactive ? 1 : 0,
"");
if (r < 0)
return r;
q = new0(AsyncPolkitQuery, 1);
if (!q)
return -ENOMEM;
q->request = sd_bus_message_ref(m);
q->callback = callback;
q->userdata = userdata;
r = hashmap_put(*registry, m, q);
if (r < 0) {
async_polkit_query_free(bus, q);
return r;
}
r = sd_bus_send_with_reply(bus, pk, async_polkit_callback, q, 0, &q->serial);
if (r < 0)
return r;
return 0;
#endif
return -EACCES;
}
