IFP: Connect to the system bus

Related:
https://fedorahosted.org/sssd/ticket/2072

Adds the possibility for the InfoPipe responder to connect to the system bus.
At the moment, only a dummy method "Ping" is provided. The method only
accepts a single string parameter that has to be 'ping'.

1 files changed, 36 insertions, 0 deletions

diff --git a/src/responder/ifp/ifpsrv_cmd.c b/src/responder/ifp/ifpsrv_cmd.c
index b9641ff60..4f73342dd 100644
--- a/src/responder/ifp/ifpsrv_cmd.c
+++ b/src/responder/ifp/ifpsrv_cmd.c
@@ -30,3 +30,39 @@ struct cli_protocol_version *register_cli_protocol_version(void)
 
     return ssh_cli_protocol_version;
 }
+
+/* This is a throwaway method to ease the review of the patch.
+ * It will be removed later */
+int ifp_ping(struct sbus_request *dbus_req, void *data)
+{
+    struct ifp_ctx *ifp_ctx = talloc_get_type(data, struct ifp_ctx);
+    static const char *pong = "PONG";
+    const char *request;
+    DBusError dberr;
+
+    if (ifp_ctx == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, "Invalid pointer!\n");
+        return sbus_request_return_and_finish(dbus_req, DBUS_TYPE_INVALID);
+    }
+
+
+    if (!sbus_request_parse_or_finish(dbus_req,
+                                      DBUS_TYPE_STRING, &request,
+                                      DBUS_TYPE_INVALID)) {
+        return EOK; /* handled */
+    }
+
+    DEBUG(SSSDBG_CONF_SETTINGS, "Got request for [%s]\n", request);
+
+    if (strcasecmp(request, "ping") != 0) {
+        dbus_error_init(&dberr);
+        dbus_set_error_const(&dberr,
+                             DBUS_ERROR_INVALID_ARGS,
+                             "Ping() only accepts ping as a param\n");
+        return sbus_request_fail_and_finish(dbus_req, &dberr);
+    }
+
+    return sbus_request_return_and_finish(dbus_req,
+                                          DBUS_TYPE_STRING, &pong,
+                                          DBUS_TYPE_INVALID);
+}