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Diffstat (limited to 'net/netfilter/nf_nat_proto_sctp.c')
-rw-r--r--net/netfilter/nf_nat_proto_sctp.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/net/netfilter/nf_nat_proto_sctp.c b/net/netfilter/nf_nat_proto_sctp.c
deleted file mode 100644
index 1c5d9b65fbba..000000000000
--- a/net/netfilter/nf_nat_proto_sctp.c
+++ /dev/null
@@ -1,77 +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/sctp.h>
-#include <net/sctp/checksum.h>
-
-#include <net/netfilter/nf_nat_l4proto.h>
-
-static u_int16_t nf_sctp_port_rover;
-
-static void
-sctp_unique_tuple(const struct nf_nat_l3proto *l3proto,
- struct nf_conntrack_tuple *tuple,
- const struct nf_nat_range2 *range,
- enum nf_nat_manip_type maniptype,
- const struct nf_conn *ct)
-{
- nf_nat_l4proto_unique_tuple(l3proto, tuple, range, maniptype, ct,
- &nf_sctp_port_rover);
-}
-
-static bool
-sctp_manip_pkt(struct sk_buff *skb,
- const struct nf_nat_l3proto *l3proto,
- unsigned int iphdroff, unsigned int hdroff,
- const struct nf_conntrack_tuple *tuple,
- enum nf_nat_manip_type maniptype)
-{
- struct sctphdr *hdr;
- int hdrsize = 8;
-
- /* This could be an inner header returned in imcp packet; in such
- * cases we cannot update the checksum field since it is outside
- * of the 8 bytes of transport layer headers we are guaranteed.
- */
- if (skb->len >= hdroff + sizeof(*hdr))
- hdrsize = sizeof(*hdr);
-
- if (!skb_make_writable(skb, hdroff + hdrsize))
- return false;
-
- hdr = (struct sctphdr *)(skb->data + hdroff);
-
- if (maniptype == NF_NAT_MANIP_SRC) {
- /* Get rid of src port */
- hdr->source = tuple->src.u.sctp.port;
- } else {
- /* Get rid of dst port */
- hdr->dest = tuple->dst.u.sctp.port;
- }
-
- if (hdrsize < sizeof(*hdr))
- return true;
-
- if (skb->ip_summed != CHECKSUM_PARTIAL) {
- hdr->checksum = sctp_compute_cksum(skb, hdroff);
- skb->ip_summed = CHECKSUM_NONE;
- }
-
- return true;
-}
-
-const struct nf_nat_l4proto nf_nat_l4proto_sctp = {
- .l4proto = IPPROTO_SCTP,
- .manip_pkt = sctp_manip_pkt,
- .in_range = nf_nat_l4proto_in_range,
- .unique_tuple = sctp_unique_tuple,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- .nlattr_to_range = nf_nat_l4proto_nlattr_to_range,
-#endif
-};