Persist management-query-remote and proxy prompts

Currently this prompt is only output once, not re-written to the
management interface when the management client connects. It is thus
not seen by a client that connects after the prompt is output or one that
disconnects and reconnects. This leads to a deadlock: the daemon waiting
for the "remote" command from the client, the latter not aware of it.

Resolve by adding the ">REMOTE" and ">PROXY" prompt to
man.persist.special_state_msg as done for other persisted prompts such
as ">PASSWORD"

Signed-off-by: Selva Nair <selva.nair@gmail.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1582254028-7763-1-git-send-email-selva.nair@gmail.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg19497.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>

diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index f82faf3dd7b7ac4017aff57bfa07c146f7744090..70cd493a592bf6cc73e5d6fd86799d7b70fa7962 100644 (file)
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -272,6 +272,7 @@ ce_management_query_proxy(struct context *c)
             buf_printf(&out, ">PROXY:%u,%s,%s", (l ? l->current : 0) + 1,
                        (proto_is_udp(ce->proto) ? "UDP" : "TCP"), np(ce->remote));
             management_notify_generic(management, BSTR(&out));
+            management->persist.special_state_msg = BSTR(&out);
         }
         ce->flags |= CE_MAN_QUERY_PROXY;
         while (ce->flags & CE_MAN_QUERY_PROXY)
@@ -283,6 +284,7 @@ ce_management_query_proxy(struct context *c)
                 break;
             }
         }
+        management->persist.special_state_msg = NULL;
         gc_free(&gc);
     }
 
@@ -352,6 +354,7 @@ ce_management_query_remote(struct context *c)
         buf_printf(&out, ">REMOTE:%s,%s,%s", np(ce->remote), ce->remote_port,
                    proto2ascii(ce->proto, ce->af, false));
         management_notify_generic(management, BSTR(&out));
+        management->persist.special_state_msg = BSTR(&out);
 
         ce->flags &= ~(CE_MAN_QUERY_REMOTE_MASK << CE_MAN_QUERY_REMOTE_SHIFT);
         ce->flags |= (CE_MAN_QUERY_REMOTE_QUERY << CE_MAN_QUERY_REMOTE_SHIFT);
@@ -365,6 +368,7 @@ ce_management_query_remote(struct context *c)
                 break;
             }
         }
+        management->persist.special_state_msg = NULL;
     }
     gc_free(&gc);