ckdb - use optioncontrol for storing permanent IPS OK and bans

src/ckdb.c

@@ -3070,8 +3070,9 @@ static enum cmd_values breakdown(K_ITEM **ml_item, char *buf, tv_t *now,
 		i_item = find_ips(IPS_GROUP_BAN, ip);
 		if (i_item) {
 			DATA_IPS(ips, i_item);
-			// Has the ban expired?
-			if ((int)tvdiff(now, &(ips->createdate)) > ips->lifetime) {
+			// Has the ban expired? 0=eternal
+			if (ips->lifetime > 0 &&
+			    (int)tvdiff(now, &(ips->createdate)) > ips->lifetime) {
 				remove_from_ktree(ips_root, i_item);
 				k_unlink_item(ips_store, i_item);
 				if (ips->description) {

src/ckdb.h

@@ -51,7 +51,7 @@
 
 #define DB_VLOCK "1"
 #define DB_VERSION "1.0.4"
-#define CKDB_VERSION DB_VERSION"-1.951"
+#define CKDB_VERSION DB_VERSION"-1.952"
 
 #define WHERE_FFL " - from %s %s() line %d"
 #define WHERE_FFL_HERE __FILE__, __func__, __LINE__
@@ -1982,6 +1982,11 @@ extern K_STORE *ips_store;
 #define IPS_GROUP_BAD "BAD"
 #define IPS_GROUP_BAN "BAN"
 
+// OptionControl records for IPS_GROUP_OK
+#define OC_IPS "ips_"
+#define OC_IPS_OK OC_IPS "ok_"
+#define OC_IPS_BAN OC_IPS "ban_"
+
 // EVENTS RAM only
 typedef struct events {
 	int id;

src/ckdb_cmd.c

@@ -7683,7 +7683,9 @@ static char *cmd_events(__maybe_unused PGconn *conn, char *cmd, char *id,
 		snprintf(tmp, sizeof(tmp), "rows=%d", rows);
 		APPEND_REALLOC(buf, off, len, tmp);
 	} else if (strcasecmp(action, "ban") == 0) {
-		// Ban the ip with optional lifetime
+		/* Ban the ip with optional lifetime
+		 * N.B. this doesn't survive a CKDB restart
+		 *	use just cmd_setopts for permanent bans */
 		bool found = false;
 		oldlife = 0;
 		i_ip = require_name(trf_root, "ip", 1, NULL, reply, siz);
@@ -7737,7 +7739,14 @@ static char *cmd_events(__maybe_unused PGconn *conn, char *cmd, char *id,
 		APPEND_REALLOC(buf, off, len, tmp);
 	} else if (strcasecmp(action, "unban") == 0) {
 		/* Unban the ip - sets lifetime to 1 meaning
-		 *  it expires 1s after it was created */
+		 *  it expires 1 second after it was created
+		 *  so next access will remove the ban and succeed
+		 * N.B. if it was a permanent 'cmd_setopts' ban, the unban
+		 *	won't survive a CKDB restart.
+		 *	You need to BOTH use this AND remove the optioncontrol
+		 *	record from the database to permanently remove a ban
+		 *	(since there's no cmd_expopts ... yet) */
+
 		bool found = false;
 		i_ip = require_name(trf_root, "ip", 1, NULL, reply, siz);
 		if (!i_ip)

src/ckdb_dbio.c

@@ -2514,10 +2514,31 @@ void oc_event_limits(OPTIONCONTROL *oc, const char *from)
 	}
 }
 
+/* IPS for IPS_GROUP_OK/BAN look like:
+ *	optionname: (OC_IPS_OK or OC_IPS_BAN) + description
+ *	optionvalue: is the IP address
+ * If you want to add the cclass subnet of an IP then add it separately
+ * 127.0.0.1 is hard coded OK in ckdb.c */
+void oc_ips(OPTIONCONTROL *oc, const char *from)
+{
+	if (strncmp(oc->optionname, OC_IPS_OK, strlen(OC_IPS_OK)) == 0) {
+		ips_add(IPS_GROUP_OK, oc->optionvalue, oc->optionname,
+			false, false, 0, false);
+	} else if (strncmp(oc->optionname, OC_IPS_BAN,
+			   strlen(OC_IPS_BAN)) == 0) {
+		ips_add(IPS_GROUP_BAN, oc->optionvalue, oc->optionname,
+			true, false, 0, false);
+	} else {
+		LOGERR("%s(%s): ERR: Unknown %s name '%s'",
+			from, __func__, OC_IPS, oc->optionname);
+	}
+}
+
 OC_TRIGGER oc_trigger[] = {
 	{ SWITCH_STATE_NAME,	true,	oc_switch_state },
 	{ DIFF_PERCENT_NAME,	true,	oc_diff_percent },
 	{ OC_LIMITS,		false,	oc_event_limits },
+	{ OC_IPS,		false,	oc_ips },
 	{ NULL, 0, NULL }
 };