GetConnectionCredentials method was added to dbus-1 specification
more than one year ago. This method should return "[...] as many
credentials as possible for the process connected to the server",
but at this moment only "UnixUserID", "LinuxSecurityLabel" and
"ProcessID" are defined by the specification. We should add support
for next credentials after extending dbus-1 spec.
diff --git a/src/bus-proxyd/driver.c b/src/bus-proxyd/driver.c
index 3c613e4..e63a95d 100644
--- a/src/bus-proxyd/driver.c
+++ b/src/bus-proxyd/driver.c
@@ -49,9 +49,6 @@ static int get_creds_by_name(sd_bus *bus, const char *name,
uint64_t mask, sd_bu
if (r < 0)
return r;
-if ((c->mask & mask) != mask)
-return -ENOTSUP;
-
*_creds = c;
c = NULL;
@@ -109,6 +106,10 @@ int bus_proxy_process_driver(sd_bus *a, sd_bus *b,
sd_bus_message *m, SharedPoli
" \n"
" \n"
" \n"
+" \n"
+" \n"
+" \n"
+" \n"
" \n"
" \n"
" \n"
@@ -212,6 +213,72 @@ int bus_proxy_process_driver(sd_bus *a, sd_bus *b,
sd_bus_message *m, SharedPoli
return synthetic_reply_method_return(m, NULL);
+} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus",
"GetConnectionCredentials")) {
+_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+_cleanup_bus_error_free_ sd_bus_error error =
SD_BUS_ERROR_NULL;
+
+if (!sd_bus_message_has_signature(m, "s"))
+return synthetic_reply_method_error(m,
&SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
+
+r = get_creds_by_message(a, m,
SD_BUS_CREDS_PID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SELINUX_CONTEXT, &creds,
&error);
+if (r < 0)
+return synthetic_reply_method_errno(m, r, &error);
+
+r = sd_bus_message_new_method_return(m, &reply);
+if (r < 0)
+return synthetic_reply_method_errno(m, r, NULL);
+
+r = sd_bus_message_open_container(reply, 'a', "{sv}");
+if (r < 0)
+return synthetic_reply_method_errno(m, r, NULL);
+
+/* Due to i.e. namespace translations some data might be
missing */
+
+if (creds->mask & SD_BUS_CREDS_PID) {
+r = sd_bus_message_append(reply, "{sv}", "ProcessID",
"u", (uint32_t) creds->pid);
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+}
+
+if (creds->mask & SD_BUS_CREDS_EUID) {
+r = sd_bus_message_append(reply, "{sv}", "UnixUserID",
"u", (uint32_t) creds->euid);
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+}
+
+if (creds->mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
+r = sd_bus_message_open_container(reply, 'e', "sv");
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+
+r = sd_bus_message_append(reply, "s",
"LinuxSecurityLabel");
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+
+r = sd_bus_message_open_container(reply, 'v', "ay");
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+
+r = sd_bus_message_append_array(reply, 'y',
creds->label, strlen(creds->label));
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+
+r = sd_bus_message_close_container(reply);
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+
+r = sd_bus_message_close_container(reply);
+if (r < 0)
+return synthetic_reply_method_errno(m, r,
NULL);
+}
+
+r = sd_bus_message_close_container(reply);
+if (r < 0)
+return synthetic_reply_method_errno(m, r, NULL);
+
+return synthetic_driver_send(m->bus, reply);
+
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus",
"GetConnectionSELinuxSecurityContext")) {
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
_cleanup_bus_error_free_ sd_bus_error err
