s3: winbindd: Add new parameter "winbind request timeout" set to 60 seconds with man page.

"This parameter specifies the number of seconds the winbindd
daemon will wait before disconnecting either a client connection
with no outstanding requests (idle) or a client connection with a
request that has remained outstanding (hung) for longer than this
number of seconds."

Bug 3204 winbindd: Exceeding 200 client connections, no idle connection found

https://bugzilla.samba.org/show_bug.cgi?id=3204

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>

5 files changed, 28 insertions, 0 deletions

diff --git a/docs-xml/smbdotconf/winbind/winbindrequesttimeout.xml b/docs-xml/smbdotconf/winbind/winbindrequesttimeout.xml
new file mode 100644
index 0000000000..322087161d
--- /dev/null
+++ b/docs-xml/smbdotconf/winbind/winbindrequesttimeout.xml
@@ -0,0 +1,16 @@
+<samba:parameter name="winbind request timeout"
+                 context="G"
+				 type="integer"
+                 advanced="1" developer="1"
+                 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
+<description>
+	<para>This parameter specifies the number of
+	seconds the <citerefentry><refentrytitle>winbindd</refentrytitle>
+	<manvolnum>8</manvolnum></citerefentry> daemon will wait before
+	disconnecting either a client connection with no outstanding
+	requests (idle) or a client connection with a request that has
+	remained outstanding (hung) for longer than this number of seconds.</para>
+</description>
+
+<value type="default">60</value>
+</samba:parameter>
diff --git a/lib/param/param_functions.c b/lib/param/param_functions.c
index 61f00448ca..d9d5df6272 100644
--- a/lib/param/param_functions.c
+++ b/lib/param/param_functions.c
@@ -341,6 +341,7 @@ FN_GLOBAL_INTEGER(winbind_cache_time, winbind_cache_time)
 FN_GLOBAL_INTEGER(winbind_expand_groups, winbind_expand_groups)
 FN_GLOBAL_INTEGER(winbind_max_clients, winbind_max_clients)
 FN_GLOBAL_INTEGER(winbind_reconnect_delay, winbind_reconnect_delay)
+FN_GLOBAL_INTEGER(winbind_request_timeout, winbind_request_timeout)
 FN_GLOBAL_LIST(auth_methods, AuthMethods)
 FN_GLOBAL_LIST(cluster_addresses, szClusterAddresses)
 FN_GLOBAL_LIST(dcerpc_endpoint_servers, dcerpc_ep_servers)
diff --git a/lib/param/param_table.c b/lib/param/param_table.c
index 7b32998084..8e3f952b6e 100644
--- a/lib/param/param_table.c
+++ b/lib/param/param_table.c
@@ -4018,6 +4018,15 @@ static struct parm_struct parm_table[] = {
 		.flags		= FLAG_ADVANCED,
 	},
 	{
+		.label		= "winbind request timeout",
+		.type		= P_INTEGER,
+		.p_class	= P_GLOBAL,
+		.offset		= GLOBAL_VAR(winbind_request_timeout),
+		.special	= NULL,
+		.enum_list	= NULL,
+		.flags		= FLAG_ADVANCED,
+	},
+	{
 		.label		= "winbind max clients",
 		.type		= P_INTEGER,
 		.p_class	= P_GLOBAL,
diff --git a/source3/include/proto.h b/source3/include/proto.h
index a42faf8148..cbad7ac36a 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -1357,6 +1357,7 @@ int lp_smb_encrypt(int );
 char lp_magicchar(const struct share_params *p );
 int lp_winbind_cache_time(void);
 int lp_winbind_reconnect_delay(void);
+int lp_winbind_request_timeout(void);
 int lp_winbind_max_clients(void);
 const char **lp_winbind_nss_info(void);
 int lp_algorithmic_rid_base(void);
diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c
index a339a1db52..4b31023cd7 100644
--- a/source3/param/loadparm.c
+++ b/source3/param/loadparm.c
@@ -978,6 +978,7 @@ static void init_globals(bool reinit_globals)
 
 	Globals.winbind_cache_time = 300;	/* 5 minutes */
 	Globals.winbind_reconnect_delay = 30;	/* 30 seconds */
+	Globals.winbind_request_timeout = 60;   /* 60 seconds */
 	Globals.winbind_max_clients = 200;
 	Globals.bWinbindEnumUsers = false;
 	Globals.bWinbindEnumGroups = false;