svn commit: r191932 - head/sys/netinet
John Baldwin
jhb at FreeBSD.org
Sat May 9 05:07:37 UTC 2009
Author: jhb
Date: Sat May 9 05:07:36 2009
New Revision: 191932
URL: http://svn.freebsd.org/changeset/base/191932
Log:
Convert IPFW_DEFAULT_TO_ACCEPT into a loader tunable
'net.inet.ip.fw.default_to_accept'. The current value can also be queried
via a read-only sysctl of the same name.
Requested by: plosher
MFC after: 1 week
Modified:
head/sys/netinet/ip_fw2.c
Modified: head/sys/netinet/ip_fw2.c
==============================================================================
--- head/sys/netinet/ip_fw2.c Sat May 9 01:45:55 2009 (r191931)
+++ head/sys/netinet/ip_fw2.c Sat May 9 05:07:36 2009 (r191932)
@@ -127,6 +127,11 @@ static struct callout ipfw_timeout;
static int verbose_limit;
#endif
+#ifdef IPFIREWALL_DEFAULT_TO_ACCEPT
+static int default_to_accept = 1;
+#else
+static int default_to_accept;
+#endif
static uma_zone_t ipfw_dyn_rule_zone;
/*
@@ -190,6 +195,9 @@ SYSCTL_UINT(_net_inet_ip_fw, OID_AUTO, d
NULL, IPFW_DEFAULT_RULE, "The default/max possible rule number.");
SYSCTL_UINT(_net_inet_ip_fw, OID_AUTO, tables_max, CTLFLAG_RD,
NULL, IPFW_TABLES_MAX, "The maximum number of tables.");
+SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, default_to_accept, CTLFLAG_RDTUN,
+ &default_to_accept, 0, "Make the default rule accept all packets.");
+TUNABLE_INT("net.inet.ip.fw.default_to_accept", &default_to_accept);
#endif /* SYSCTL_NODE */
/*
@@ -4636,11 +4644,7 @@ ipfw_init(void)
default_rule.set = RESVD_SET;
default_rule.cmd[0].len = 1;
- default_rule.cmd[0].opcode =
-#ifdef IPFIREWALL_DEFAULT_TO_ACCEPT
- 1 ? O_ACCEPT :
-#endif
- O_DENY;
+ default_rule.cmd[0].opcode = default_to_accept ? O_ACCEPT : O_DENY;
error = add_rule(&V_layer3_chain, &default_rule);
if (error != 0) {
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