bus: add a temporary hard-coded policy to proxyd to make gdm work

[elogind.git] / src / bus-proxyd / bus-proxyd.c

diff --git a/src/bus-proxyd/bus-proxyd.c b/src/bus-proxyd/bus-proxyd.c
index 27122a5d717de9c39f69a7863ced5678da4070b3..fa52a387b649afc3572b875e42c94d6bcb9fd0d8 100644 (file)
--- a/src/bus-proxyd/bus-proxyd.c
+++ b/src/bus-proxyd/bus-proxyd.c
@@ -258,6 +258,45 @@ static int synthesize_name_acquired(sd_bus *a, sd_bus *b, sd_bus_message *m) {
         return sd_bus_send(b, n, NULL);
 }
 
+static int process_policy(sd_bus *a, sd_bus *b, sd_bus_message *m) {
+        _cleanup_bus_message_unref_ sd_bus_message *n = NULL;
+        int r;
+
+        assert(a);
+        assert(b);
+        assert(m);
+
+        if (!sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Properties", "GetAll"))
+                return 0;
+
+        if (!streq_ptr(m->path, "/org/gnome/DisplayManager/Slave"))
+                return 0;
+
+        r = sd_bus_message_new_method_errorf(m, &n, SD_BUS_ERROR_ACCESS_DENIED, "gdm, you are stupid");
+        if (r < 0)
+                return r;
+
+        r = bus_message_append_sender(n, "org.freedesktop.DBus");
+        if (r < 0) {
+                log_error("Failed to append sender to gdm reply: %s", strerror(-r));
+                return r;
+        }
+
+        r = bus_seal_synthetic_message(b, n);
+        if (r < 0) {
+                log_error("Failed to seal gdm reply: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_bus_send(b, n, NULL);
+        if (r < 0) {
+                log_error("Failed to send gdm reply: %s", strerror(-r));
+                return r;
+        }
+
+        return 1;
+}
+
 static int process_hello(sd_bus *a, sd_bus *b, sd_bus_message *m, bool *got_hello) {
         _cleanup_bus_message_unref_ sd_bus_message *n = NULL;
         bool is_hello;
@@ -614,6 +653,12 @@ int main(int argc, char *argv[]) {
                         if (k > 0)
                                 r = k;
                         else {
+                                k = process_policy(a, b, m);
+                                if (k < 0) {
+                                        r = k;
+                                        goto finish;
+                                }
+
                                 k = sd_bus_send(a, m, NULL);
                                 if (k < 0) {
                                         r = k;