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
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parent
8569258bf8
commit
5f17ebf94d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=191932
@ -127,6 +127,11 @@ static struct callout ipfw_timeout;
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static int verbose_limit;
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#endif
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#ifdef IPFIREWALL_DEFAULT_TO_ACCEPT
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static int default_to_accept = 1;
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#else
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static int default_to_accept;
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#endif
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static uma_zone_t ipfw_dyn_rule_zone;
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/*
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@ -190,6 +195,9 @@ SYSCTL_UINT(_net_inet_ip_fw, OID_AUTO, default_rule, CTLFLAG_RD,
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NULL, IPFW_DEFAULT_RULE, "The default/max possible rule number.");
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SYSCTL_UINT(_net_inet_ip_fw, OID_AUTO, tables_max, CTLFLAG_RD,
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NULL, IPFW_TABLES_MAX, "The maximum number of tables.");
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SYSCTL_INT(_net_inet_ip_fw, OID_AUTO, default_to_accept, CTLFLAG_RDTUN,
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&default_to_accept, 0, "Make the default rule accept all packets.");
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TUNABLE_INT("net.inet.ip.fw.default_to_accept", &default_to_accept);
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#endif /* SYSCTL_NODE */
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/*
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@ -4636,11 +4644,7 @@ ipfw_init(void)
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default_rule.set = RESVD_SET;
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default_rule.cmd[0].len = 1;
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default_rule.cmd[0].opcode =
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#ifdef IPFIREWALL_DEFAULT_TO_ACCEPT
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1 ? O_ACCEPT :
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#endif
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O_DENY;
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default_rule.cmd[0].opcode = default_to_accept ? O_ACCEPT : O_DENY;
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error = add_rule(&V_layer3_chain, &default_rule);
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if (error != 0) {
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