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Diffstat (limited to 'net/ipv4/netfilter/nf_nat_proto_sctp.c')
-rw-r--r--net/ipv4/netfilter/nf_nat_proto_sctp.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/net/ipv4/netfilter/nf_nat_proto_sctp.c b/net/ipv4/netfilter/nf_nat_proto_sctp.c
deleted file mode 100644
index 3cce9b6c1c2..00000000000
--- a/net/ipv4/netfilter/nf_nat_proto_sctp.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/ip.h>
-#include <linux/sctp.h>
-#include <linux/module.h>
-#include <net/sctp/checksum.h>
-
-#include <net/netfilter/nf_nat_protocol.h>
-
-static u_int16_t nf_sctp_port_rover;
-
-static void
-sctp_unique_tuple(struct nf_conntrack_tuple *tuple,
- const struct nf_nat_ipv4_range *range,
- enum nf_nat_manip_type maniptype,
- const struct nf_conn *ct)
-{
- nf_nat_proto_unique_tuple(tuple, range, maniptype, ct,
- &nf_sctp_port_rover);
-}
-
-static bool
-sctp_manip_pkt(struct sk_buff *skb,
- unsigned int iphdroff,
- const struct nf_conntrack_tuple *tuple,
- enum nf_nat_manip_type maniptype)
-{
- const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
- struct sk_buff *frag;
- sctp_sctphdr_t *hdr;
- unsigned int hdroff = iphdroff + iph->ihl*4;
- __be32 oldip, newip;
- __be32 crc32;
-
- if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
- return false;
-
- iph = (struct iphdr *)(skb->data + iphdroff);
- hdr = (struct sctphdr *)(skb->data + hdroff);
-
- if (maniptype == NF_NAT_MANIP_SRC) {
- /* Get rid of src ip and src pt */
- oldip = iph->saddr;
- newip = tuple->src.u3.ip;
- hdr->source = tuple->src.u.sctp.port;
- } else {
- /* Get rid of dst ip and dst pt */
- oldip = iph->daddr;
- newip = tuple->dst.u3.ip;
- hdr->dest = tuple->dst.u.sctp.port;
- }
-
- crc32 = sctp_start_cksum((u8 *)hdr, skb_headlen(skb) - hdroff);
- skb_walk_frags(skb, frag)
- crc32 = sctp_update_cksum((u8 *)frag->data, skb_headlen(frag),
- crc32);
- crc32 = sctp_end_cksum(crc32);
- hdr->checksum = crc32;
-
- return true;
-}
-
-static const struct nf_nat_protocol nf_nat_protocol_sctp = {
- .protonum = IPPROTO_SCTP,
- .manip_pkt = sctp_manip_pkt,
- .in_range = nf_nat_proto_in_range,
- .unique_tuple = sctp_unique_tuple,
-#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
- .nlattr_to_range = nf_nat_proto_nlattr_to_range,
-#endif
-};
-
-static int __init nf_nat_proto_sctp_init(void)
-{
- return nf_nat_protocol_register(&nf_nat_protocol_sctp);
-}
-
-static void __exit nf_nat_proto_sctp_exit(void)
-{
- nf_nat_protocol_unregister(&nf_nat_protocol_sctp);
-}
-
-module_init(nf_nat_proto_sctp_init);
-module_exit(nf_nat_proto_sctp_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SCTP NAT protocol helper");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");