ITS#9490 - Add keepalive settings to ldap.conf

doc/man/man5/ldap.conf.5

@@ -171,6 +171,18 @@ list of hosts may be provided.
 is deprecated in favor of
 .BR URI .
 .TP
+.B _KEEPALIVE_IDLE
+Sets/gets the number of seconds a connection needs to remain idle
+before TCP starts sending keepalive probes. Linux only.
+.TP
+.B KEEPALIVE_PROBES
+Sets/gets the maximum number of keepalive probes TCP should send
+before dropping the connection. Linux only.
+.TP
+.B KEEPALIVE_INTERVAL
+Sets/gets the interval in seconds between individual keepalive probes.
+Linux only.
+.TP
 .B NETWORK_TIMEOUT <integer>
 Specifies the timeout (in seconds) after which the poll(2)/select(2)
 following a connect(2) returns in case of no activity.

libraries/libldap/init.c

@@ -94,6 +94,10 @@ static const struct ol_attribute {
 	{0, ATTR_OPTION,	"HOST",			NULL,	LDAP_OPT_HOST_NAME}, /* deprecated */
 	{0, ATTR_OPTION,	"URI",			NULL,	LDAP_OPT_URI}, /* replaces HOST/PORT */
 	{0, ATTR_BOOL,		"REFERRALS",	NULL,	LDAP_BOOL_REFERRALS},
+	{0, ATTR_INT,		"KEEPALIVE_IDLE",	NULL,	LDAP_OPT_X_KEEPALIVE_IDLE},
+	{0, ATTR_INT,		"KEEPALIVE_PROBES",	NULL,	LDAP_OPT_X_KEEPALIVE_PROBES},
+	{0, ATTR_INT,		"KEEPALIVE_INTERVAL",	NULL,	LDAP_OPT_X_KEEPALIVE_INTERVAL},
+
 #if 0
 	/* This should only be allowed via ldap_set_option(3) */
 	{0, ATTR_BOOL,		"RESTART",		NULL,	LDAP_BOOL_RESTART},