_public_ int sd_bus_query_sender_creds(sd_bus_message *call, uint64_t mask, sd_bus_creds **creds) {
sd_bus_creds *c;
assert_return(call, -EINVAL);
assert_return(call->sealed, -EPERM);
assert_return(call->bus, -EINVAL);
assert_return(!bus_pid_changed(call->bus), -ECHILD);
if (!BUS_IS_OPEN(call->bus->state))
return -ENOTCONN;
c = sd_bus_message_get_creds(call);
/* All data we need? */
if (c && (mask & ~c->mask) == 0) {
*creds = sd_bus_creds_ref(c);
return 0;
}
/* No data passed? Or not enough data passed to retrieve the missing bits? */
if (!c || !(c->mask & SD_BUS_CREDS_PID)) {
/* We couldn't read anything from the call, let's try
* to get it from the sender or peer */
if (call->sender)
return sd_bus_get_owner(call->bus, call->sender, mask, creds);
else
return sd_bus_get_peer_creds(call->bus, mask, creds);
}
return bus_creds_extend_by_pid(c, mask, creds);
}
_public_ int sd_bus_query_sender_creds(sd_bus_message *call, uint64_t mask, sd_bus_creds **creds) {
sd_bus_creds *c;
assert_return(call, -EINVAL);
assert_return(call->sealed, -EPERM);
assert_return(call->bus, -EINVAL);
assert_return(!bus_pid_changed(call->bus), -ECHILD);
if (!BUS_IS_OPEN(call->bus->state))
return -ENOTCONN;
c = sd_bus_message_get_creds(call);
/* All data we need? */
if (c && (mask & ~c->mask) == 0) {
*creds = sd_bus_creds_ref(c);
return 0;
}
/* No data passed? Or not enough data passed to retrieve the missing bits? */
if (!c || !(c->mask & SD_BUS_CREDS_PID)) {
/* We couldn't read anything from the call, let's try
* to get it from the sender or peer. */
if (call->sender)
/* There's a sender, but the creds are
* missing. This means we are talking via
* dbus1, or are getting a message that was
* sent to us via kdbus, but was converted
* from a dbus1 message by the bus-proxy and
* thus also lacks the creds. */
return sd_bus_get_name_creds(call->bus, call->sender, mask, creds);
else
/* There's no sender, hence we are on a dbus1
* direct connection. For direct connections
* the credentials of the AF_UNIX peer matter,
* which may be queried via
* sd_bus_get_owner_creds(). */
return sd_bus_get_owner_creds(call->bus, mask, creds);
}
return bus_creds_extend_by_pid(c, mask, creds);
}
