From: Taehee Yoo <ap420073@xxxxxxxxx>
In order to upload helper module automatically, helper alias name
is needed. so that MODULE_ALIAS_NFCT_HELPER() should be added.
And unlike other nat helper modules, the nf_nat_snmp_basic can be
used independently.
helper name is "snmp_trap" so that alias name will be
"nfct-helper-snmp_trap" by MODULE_ALIAS_NFCT_HELPER(snmp_trap)
test command:
%iptables -t raw -I PREROUTING -p udp -j CT --helper snmp_trap
%lsmod | grep nf_nat_snmp_basic
We can see nf_nat_snmp_basic module is uploaded automatically.
Signed-off-by: Taehee Yoo <ap420073@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/ipv4/netfilter/nf_nat_snmp_basic_main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
index ac110c1d55b5..a0aa13bcabda 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
@@ -60,6 +60,7 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("James Morris <jmorris@xxxxxxxxxxxxxxxx>");
MODULE_DESCRIPTION("Basic SNMP Application Layer Gateway");
MODULE_ALIAS("ip_nat_snmp_basic");
+MODULE_ALIAS_NFCT_HELPER("snmp_trap");
#define SNMP_PORT 161
#define SNMP_TRAP_PORT 162
--
2.11.0
