netfilter: use macros to create module aliases.

Each NAT helper creates a module alias which follows a pattern.
Use macros for consistency.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/net/netfilter/nf_conntrack_helper.h

@@ -15,6 +15,10 @@
 #include <net/netfilter/nf_conntrack_extend.h>
 #include <net/netfilter/nf_conntrack_expect.h>
 
+#define NF_NAT_HELPER_NAME(name)	"ip_nat_" name
+#define MODULE_ALIAS_NF_NAT_HELPER(name) \
+	MODULE_ALIAS(NF_NAT_HELPER_NAME(name))
+
 struct module;
 
 enum nf_ct_helper_flags {

net/ipv4/netfilter/nf_nat_h323.c

@@ -631,4 +631,4 @@ module_exit(fini);
 MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
 MODULE_DESCRIPTION("H.323 NAT helper");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("ip_nat_h323");
+MODULE_ALIAS_NF_NAT_HELPER("h323");

net/ipv4/netfilter/nf_nat_pptp.c

@@ -37,7 +37,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
 MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
-MODULE_ALIAS("ip_nat_pptp");
+MODULE_ALIAS_NF_NAT_HELPER("pptp");
 
 static void pptp_nat_expected(struct nf_conn *ct,
 			      struct nf_conntrack_expect *exp)

net/netfilter/nf_nat_amanda.c

@@ -22,7 +22,7 @@
 MODULE_AUTHOR("Brian J. Murrell <netfilter@interlinx.bc.ca>");
 MODULE_DESCRIPTION("Amanda NAT helper");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("ip_nat_amanda");
+MODULE_ALIAS_NF_NAT_HELPER("amanda");
 
 static unsigned int help(struct sk_buff *skb,
 			 enum ip_conntrack_info ctinfo,

net/netfilter/nf_nat_ftp.c

@@ -24,7 +24,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Rusty Russell <rusty@rustcorp.com.au>");
 MODULE_DESCRIPTION("ftp NAT helper");
-MODULE_ALIAS("ip_nat_ftp");
+MODULE_ALIAS_NF_NAT_HELPER("ftp");
 
 /* FIXME: Time out? --RR */
 

net/netfilter/nf_nat_irc.c

@@ -26,7 +26,7 @@
 MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
 MODULE_DESCRIPTION("IRC (DCC) NAT helper");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("ip_nat_irc");
+MODULE_ALIAS_NF_NAT_HELPER("irc");
 
 static unsigned int help(struct sk_buff *skb,
 			 enum ip_conntrack_info ctinfo,

net/netfilter/nf_nat_sip.c

@@ -27,7 +27,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Christian Hentschel <chentschel@arnet.com.ar>");
 MODULE_DESCRIPTION("SIP NAT helper");
-MODULE_ALIAS("ip_nat_sip");
+MODULE_ALIAS_NF_NAT_HELPER("sip");
 
 
 static unsigned int mangle_packet(struct sk_buff *skb, unsigned int protoff,

net/netfilter/nf_nat_tftp.c

@@ -16,7 +16,7 @@
 MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
 MODULE_DESCRIPTION("TFTP NAT helper");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("ip_nat_tftp");
+MODULE_ALIAS_NF_NAT_HELPER("tftp");
 
 static unsigned int help(struct sk_buff *skb,
 			 enum ip_conntrack_info ctinfo,