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[Openvpn-devel,1/2] Persist management-query-remote and proxy prompts

Message ID 1521522224-18829-1-git-send-email-selva.nair@gmail.com
State Superseded
Headers show
Series [Openvpn-devel,1/2] Persist management-query-remote and proxy prompts | expand

Commit Message

Selva Nair March 19, 2018, 6:03 p.m. UTC 
From: Selva Nair <selva.nair@gmail.com>

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>
---
This is a bug fix so could go into 2.4 and master.

 src/openvpn/init.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index 36c1a4c..413563a 100644
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -269,6 +269,7 @@  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)
@@ -280,6 +281,7 @@  ce_management_query_proxy(struct context *c)
                 break;
             }
         }
+        management->persist.special_state_msg = NULL;
         gc_free(&gc);
     }
 
@@ -349,6 +351,7 @@  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);
@@ -362,6 +365,7 @@  ce_management_query_remote(struct context *c)
                 break;
             }
         }
+        management->persist.special_state_msg = NULL;
     }
     gc_free(&gc);