X-Git-Url: http://git.archive.openwrt.org/?p=project%2Ffirewall3.git;a=blobdiff_plain;f=rules.c;h=4750af7ef2d9dee6050d567c7c15c633a030ae54;hp=d29bba2fb8c50d9cccce5db8e9ce99830c52927d;hb=aeba5741d7ed3b53fb4f1bb3679feb0fa526f4c6;hpb=5b051a66fad3c208380d69b4b13d09929fcfe101

diff --git a/rules.c b/rules.c
index d29bba2..4750af7 100644
--- a/rules.c
+++ b/rules.c
@@ -19,34 +19,56 @@
 #include "rules.h"
 
 
-static struct fw3_option rule_opts[] = {
-	FW3_OPT("name",                string,   rule,     name),
-	FW3_OPT("family",              family,   rule,     family),
+const struct fw3_option fw3_rule_opts[] = {
+	FW3_OPT("enabled",             bool,      rule,     enabled),
 
-	FW3_OPT("src",                 device,   rule,     src),
-	FW3_OPT("dest",                device,   rule,     dest),
+	FW3_OPT("name",                string,    rule,     name),
+	FW3_OPT("family",              family,    rule,     family),
 
-	FW3_OPT("ipset",               device,   rule,     ipset),
+	FW3_OPT("src",                 device,    rule,     src),
+	FW3_OPT("dest",                device,    rule,     dest),
 
-	FW3_LIST("proto",              protocol, rule,     proto),
+	FW3_OPT("ipset",               setmatch,  rule,     ipset),
 
-	FW3_LIST("src_ip",             address,  rule,     ip_src),
-	FW3_LIST("src_mac",            mac,      rule,     mac_src),
-	FW3_LIST("src_port",           port,     rule,     port_src),
+	FW3_LIST("proto",              protocol,  rule,     proto),
 
-	FW3_LIST("dest_ip",            address,  rule,     ip_dest),
-	FW3_LIST("dest_port",          port,     rule,     port_dest),
+	FW3_LIST("src_ip",             network,   rule,     ip_src),
+	FW3_LIST("src_mac",            mac,       rule,     mac_src),
+	FW3_LIST("src_port",           port,      rule,     port_src),
 
-	FW3_LIST("icmp_type",          icmptype, rule,     icmp_type),
-	FW3_OPT("extra",               string,   rule,     extra),
+	FW3_LIST("dest_ip",            network,   rule,     ip_dest),
+	FW3_LIST("dest_port",          port,      rule,     port_dest),
 
-	FW3_OPT("limit",               limit,    rule,     limit),
-	FW3_OPT("limit_burst",         int,      rule,     limit.burst),
+	FW3_LIST("icmp_type",          icmptype,  rule,     icmp_type),
+	FW3_OPT("extra",               string,    rule,     extra),
 
-	FW3_OPT("target",              target,   rule,     target),
+	FW3_OPT("limit",               limit,     rule,     limit),
+	FW3_OPT("limit_burst",         int,       rule,     limit.burst),
+
+	FW3_OPT("utc_time",            bool,      rule,     time.utc),
+	FW3_OPT("start_date",          date,      rule,     time.datestart),
+	FW3_OPT("stop_date",           date,      rule,     time.datestop),
+	FW3_OPT("start_time",          time,      rule,     time.timestart),
+	FW3_OPT("stop_time",           time,      rule,     time.timestop),
+	FW3_OPT("weekdays",            weekdays,  rule,     time.weekdays),
+	FW3_OPT("monthdays",           monthdays, rule,     time.monthdays),
+
+	FW3_OPT("mark",                mark,      rule,     mark),
+	FW3_OPT("set_mark",            mark,      rule,     set_mark),
+	FW3_OPT("set_xmark",           mark,      rule,     set_xmark),
+
+	FW3_OPT("target",              target,    rule,     target),
+
+	{ }
 };
 
 
+static bool
+need_src_action_chain(struct fw3_rule *r)
+{
+	return (r->_src && r->_src->log && (r->target > FW3_FLAG_ACCEPT));
+}
+
 void
 fw3_load_rules(struct fw3_state *state, struct uci_package *p)
 {
@@ -81,7 +103,15 @@ fw3_load_rules(struct fw3_state *state, struct uci_package *p)
 
 		INIT_LIST_HEAD(&rule->icmp_type);
 
-		fw3_parse_options(rule, rule_opts, ARRAY_SIZE(rule_opts), s);
+		rule->enabled = true;
+
+		fw3_parse_options(rule, fw3_rule_opts, s);
+
+		if (!rule->enabled)
+		{
+			fw3_free_rule(rule);
+			continue;
+		}
 
 		if (rule->src.invert || rule->dest.invert)
 		{
@@ -109,40 +139,78 @@ fw3_load_rules(struct fw3_state *state, struct uci_package *p)
 			fw3_free_rule(rule);
 			continue;
 		}
-		else if (rule->ipset.set && !rule->ipset.any &&
-		         !(rule->_ipset = fw3_lookup_ipset(state, rule->ipset.name)))
+		else if (rule->ipset.set &&
+		         !(rule->ipset.ptr = fw3_lookup_ipset(state, rule->ipset.name)))
 		{
-			warn_elem(e, "refers to not declared ipset '%s'", rule->ipset.name);
+			warn_elem(e, "refers to unknown ipset '%s'", rule->ipset.name);
 			fw3_free_rule(rule);
 			continue;
 		}
 
-		if (!rule->_src && rule->target == FW3_TARGET_NOTRACK)
+		if (!rule->_src && rule->target == FW3_FLAG_NOTRACK)
 		{
 			warn_elem(e, "is set to target NOTRACK but has no source assigned");
 			fw3_free_rule(rule);
 			continue;
 		}
 
+		if (!rule->set_mark.set && !rule->set_xmark.set &&
+		    rule->target == FW3_FLAG_MARK)
+		{
+			warn_elem(e, "is set to target MARK but specifies neither "
+			             "'set_mark' nor 'set_xmark' option");
+			fw3_free_rule(rule);
+			continue;
+		}
+
+		if (rule->_dest && rule->target == FW3_FLAG_MARK)
+		{
+			warn_elem(e, "must not specify 'dest' for MARK target");
+			fw3_free_rule(rule);
+			continue;
+		}
+
+		if (rule->set_mark.invert || rule->set_xmark.invert)
+		{
+			warn_elem(e, "must not have inverted 'set_mark' or 'set_xmark'");
+			fw3_free_rule(rule);
+			continue;
+		}
+
 		if (!rule->_src && !rule->_dest && !rule->src.any && !rule->dest.any)
 		{
 			warn_elem(e, "has neither a source nor a destination zone assigned "
 			             "- assuming an output rule");
 		}
 
-		if (rule->target == FW3_TARGET_UNSPEC)
+		if (list_empty(&rule->proto))
+		{
+			warn_elem(e, "does not specify a protocol, assuming TCP+UDP");
+			fw3_parse_protocol(&rule->proto, "tcpudp", true);
+		}
+
+		if (rule->target == FW3_FLAG_UNSPEC)
 		{
 			warn_elem(e, "has no target specified, defaulting to REJECT");
-			rule->target = FW3_TARGET_REJECT;
+			rule->target = FW3_FLAG_REJECT;
 		}
-		else if (rule->target > FW3_TARGET_NOTRACK)
+		else if (rule->target > FW3_FLAG_MARK)
 		{
 			warn_elem(e, "has invalid target specified, defaulting to REJECT");
-			rule->target = FW3_TARGET_REJECT;
+			rule->target = FW3_FLAG_REJECT;
 		}
 
+		/* NB: rule family... */
 		if (rule->_dest)
-			setbit(rule->_dest->has_dest_target, rule->target);
+		{
+			setbit(rule->_dest->flags[0], rule->target);
+			setbit(rule->_dest->flags[1], rule->target);
+		}
+		else if (need_src_action_chain(rule))
+		{
+			setbit(rule->_src->flags[0], fw3_to_src_target(rule->target));
+			setbit(rule->_src->flags[1], fw3_to_src_target(rule->target));
+		}
 
 		list_add_tail(&rule->list, &state->rules);
 		continue;
@@ -151,15 +219,19 @@ fw3_load_rules(struct fw3_state *state, struct uci_package *p)
 
 
 static void
-print_chain(struct fw3_rule *rule)
+append_chain(struct fw3_ipt_rule *r, struct fw3_rule *rule)
 {
-	char chain[256];
+	char chain[32];
 
-	sprintf(chain, "delegate_output");
+	snprintf(chain, sizeof(chain), "delegate_output");
 
-	if (rule->target == FW3_TARGET_NOTRACK)
+	if (rule->target == FW3_FLAG_NOTRACK)
 	{
-		sprintf(chain, "zone_%s_notrack", rule->src.name);
+		snprintf(chain, sizeof(chain), "zone_%s_notrack", rule->src.name);
+	}
+	else if (rule->target == FW3_FLAG_MARK)
+	{
+		snprintf(chain, sizeof(chain), "fwmark");
 	}
 	else
 	{
@@ -168,85 +240,122 @@ print_chain(struct fw3_rule *rule)
 			if (!rule->src.any)
 			{
 				if (rule->dest.set)
-					sprintf(chain, "zone_%s_forward", rule->src.name);
+					snprintf(chain, sizeof(chain), "zone_%s_forward",
+					         rule->src.name);
 				else
-					sprintf(chain, "zone_%s_input", rule->src.name);
+					snprintf(chain, sizeof(chain), "zone_%s_input",
+					         rule->src.name);
 			}
 			else
 			{
 				if (rule->dest.set)
-					sprintf(chain, "delegate_forward");
+					snprintf(chain, sizeof(chain), "delegate_forward");
 				else
-					sprintf(chain, "delegate_input");
+					snprintf(chain, sizeof(chain), "delegate_input");
 			}
 		}
 
 		if (rule->dest.set && !rule->src.set)
-			sprintf(chain, "zone_%s_output", rule->dest.name);
+		{
+			if (rule->dest.any)
+				snprintf(chain, sizeof(chain), "delegate_output");
+			else
+				snprintf(chain, sizeof(chain), "zone_%s_output",
+				         rule->dest.name);
+		}
 	}
 
-	fw3_pr("-A %s", chain);
+	fw3_ipt_rule_append(r, chain);
 }
 
-static void print_target(struct fw3_rule *rule)
+static void set_target(struct fw3_ipt_rule *r, struct fw3_rule *rule)
 {
-	char target[256];
+	const char *name;
+	struct fw3_mark *mark;
+	char buf[sizeof("0xFFFFFFFF/0xFFFFFFFF\0")];
 
 	switch(rule->target)
 	{
-	case FW3_TARGET_ACCEPT:
-		sprintf(target, "ACCEPT");
-		break;
+	case FW3_FLAG_MARK:
+		name = rule->set_mark.set ? "--set-mark" : "--set-xmark";
+		mark = rule->set_mark.set ? &rule->set_mark : &rule->set_xmark;
+		sprintf(buf, "0x%x/0x%x", mark->mark, mark->mask);
 
-	case FW3_TARGET_DROP:
-		sprintf(target, "DROP");
-		break;
+		fw3_ipt_rule_target(r, "MARK");
+		fw3_ipt_rule_addarg(r, false, name, buf);
+		return;
+
+	case FW3_FLAG_NOTRACK:
+		fw3_ipt_rule_target(r, fw3_flag_names[rule->target]);
+		return;
 
-	case FW3_TARGET_NOTRACK:
-		sprintf(target, "NOTRACK");
+	case FW3_FLAG_ACCEPT:
+	case FW3_FLAG_DROP:
+		name = fw3_flag_names[rule->target];
 		break;
 
 	default:
-		sprintf(target, "REJECT");
+		name = "reject";
 		break;
 	}
 
 	if (rule->dest.set && !rule->dest.any)
-		fw3_pr(" -j zone_%s_dest_%s\n", rule->dest.name, target);
-	else if (!strcmp(target, "REJECT"))
-		fw3_pr(" -j reject\n");
+		fw3_ipt_rule_target(r, "zone_%s_dest_%s", rule->dest.name, name);
+	else if (need_src_action_chain(rule))
+		fw3_ipt_rule_target(r, "zone_%s_src_%s", rule->src.name, name);
 	else
-		fw3_pr(" -j %s\n", target);
+		fw3_ipt_rule_target(r, name);
 }
 
 static void
-print_rule(enum fw3_table table, enum fw3_family family,
-           struct fw3_rule *rule, struct fw3_protocol *proto,
+set_comment(struct fw3_ipt_rule *r, const char *name, int num)
+{
+	if (name)
+		fw3_ipt_rule_comment(r, name);
+	else
+		fw3_ipt_rule_comment(r, "@rule[%u]", num);
+}
+
+static void
+print_rule(struct fw3_ipt_handle *handle, struct fw3_state *state,
+           struct fw3_rule *rule, int num, struct fw3_protocol *proto,
            struct fw3_address *sip, struct fw3_address *dip,
            struct fw3_port *sport, struct fw3_port *dport,
            struct fw3_mac *mac, struct fw3_icmptype *icmptype)
 {
-	if (!fw3_is_family(sip, family) || !fw3_is_family(dip, family))
+	struct fw3_ipt_rule *r;
+
+	if (!fw3_is_family(sip, handle->family) ||
+	    !fw3_is_family(dip, handle->family))
+	{
+		if ((sip && !sip->resolved) || (dip && !dip->resolved))
+			info("     ! Skipping due to different family of ip address");
+
 		return;
+	}
 
-	if (proto->protocol == 58 && family == FW3_FAMILY_V4)
+	if (proto->protocol == 58 && handle->family == FW3_FAMILY_V4)
+	{
+		info("     ! Skipping due to different family of protocol");
 		return;
+	}
 
-	print_chain(rule);
-	fw3_format_ipset(rule->_ipset, rule->ipset.invert);
-	fw3_format_protocol(proto, family);
-	fw3_format_src_dest(sip, dip);
-	fw3_format_sport_dport(sport, dport);
-	fw3_format_icmptype(icmptype, family);
-	fw3_format_mac(mac);
-	fw3_format_limit(&rule->limit);
-	fw3_format_extra(rule->extra);
-	fw3_format_comment(rule->name);
-	print_target(rule);
+	r = fw3_ipt_rule_create(handle, proto, NULL, NULL, sip, dip);
+	fw3_ipt_rule_sport_dport(r, sport, dport);
+	fw3_ipt_rule_icmptype(r, icmptype);
+	fw3_ipt_rule_mac(r, mac);
+	fw3_ipt_rule_ipset(r, &rule->ipset);
+	fw3_ipt_rule_limit(r, &rule->limit);
+	fw3_ipt_rule_time(r, &rule->time);
+	fw3_ipt_rule_mark(r, &rule->mark);
+	set_target(r, rule);
+	fw3_ipt_rule_extra(r, rule->extra);
+	set_comment(r, rule->name, num);
+	append_chain(r, rule);
 }
 
 static void
-expand_rule(enum fw3_table table, enum fw3_family family,
+expand_rule(struct fw3_ipt_handle *handle, struct fw3_state *state,
             struct fw3_rule *rule, int num)
 {
 	struct fw3_protocol *proto;
@@ -264,11 +373,12 @@ expand_rule(enum fw3_table table, enum fw3_family family,
 	struct list_head empty;
 	INIT_LIST_HEAD(&empty);
 
-	if (!fw3_is_family(rule, family))
+	if (!fw3_is_family(rule, handle->family))
 		return;
 
-	if ((table == FW3_TABLE_RAW && rule->target != FW3_TARGET_NOTRACK) ||
-	    (table != FW3_TABLE_FILTER))
+	if ((rule->target == FW3_FLAG_NOTRACK && handle->table != FW3_TABLE_RAW) ||
+	    (rule->target == FW3_FLAG_MARK && handle->table != FW3_TABLE_MANGLE) ||
+		(rule->target < FW3_FLAG_NOTRACK && handle->table != FW3_TABLE_FILTER))
 		return;
 
 	if (rule->name)
@@ -276,6 +386,32 @@ expand_rule(enum fw3_table table, enum fw3_family family,
 	else
 		info("   * Rule #%u", num);
 
+	if (!fw3_is_family(rule->_src, handle->family) ||
+	    !fw3_is_family(rule->_dest, handle->family))
+	{
+		info("     ! Skipping due to different family of zone");
+		return;
+	}
+
+	if (rule->ipset.ptr)
+	{
+		if (!fw3_is_family(rule->ipset.ptr, handle->family))
+		{
+			info("     ! Skipping due to different family in ipset");
+			return;
+		}
+
+		if (!fw3_check_ipset(rule->ipset.ptr))
+		{
+			info("     ! Skipping due to missing ipset '%s'",
+			     rule->ipset.ptr->external
+					? rule->ipset.ptr->external : rule->ipset.ptr->name);
+			return;
+		}
+
+		set(rule->ipset.ptr->flags, handle->family, handle->family);
+	}
+
 	list_for_each_entry(proto, &rule->proto, list)
 	{
 		/* icmp / ipv6-icmp */
@@ -298,35 +434,17 @@ expand_rule(enum fw3_table table, enum fw3_family family,
 		fw3_foreach(dport, dports)
 		fw3_foreach(mac, &rule->mac_src)
 		fw3_foreach(icmptype, icmptypes)
-			print_rule(table, family, rule, proto, sip, dip, sport, dport,
-			           mac, icmptype);
+			print_rule(handle, state, rule, num, proto, sip, dip,
+			           sport, dport, mac, icmptype);
 	}
 }
 
 void
-fw3_print_rules(enum fw3_table table, enum fw3_family family,
-                struct fw3_state *state)
+fw3_print_rules(struct fw3_ipt_handle *handle, struct fw3_state *state)
 {
 	int num = 0;
 	struct fw3_rule *rule;
 
 	list_for_each_entry(rule, &state->rules, list)
-		expand_rule(table, family, rule, num++);
-}
-
-void
-fw3_free_rule(struct fw3_rule *rule)
-{
-	fw3_free_list(&rule->proto);
-
-	fw3_free_list(&rule->ip_src);
-	fw3_free_list(&rule->mac_src);
-	fw3_free_list(&rule->port_dest);
-
-	fw3_free_list(&rule->ip_dest);
-	fw3_free_list(&rule->port_dest);
-
-	fw3_free_list(&rule->icmp_type);
-
-	free(rule);
+		expand_rule(handle, state, rule, num++);
 }