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-rw-r--r--net/netfilter/nf_nat_proto_udp.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/net/netfilter/nf_nat_proto_udp.c b/net/netfilter/nf_nat_proto_udp.c
deleted file mode 100644
index 5790f70a83b2..000000000000
--- a/net/netfilter/nf_nat_proto_udp.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
- *
- * 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/export.h>
-#include <linux/init.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nf_nat_core.h>
-#include <net/netfilter/nf_nat_l3proto.h>
-#include <net/netfilter/nf_nat_l4proto.h>
-
-static u16 udp_port_rover;
-
-static void
-udp_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,
- &udp_port_rover);
-}
-
-static void
-__udp_manip_pkt(struct sk_buff *skb,
- const struct nf_nat_l3proto *l3proto,
- unsigned int iphdroff, struct udphdr *hdr,
- const struct nf_conntrack_tuple *tuple,
- enum nf_nat_manip_type maniptype, bool do_csum)
-{
- __be16 *portptr, newport;
-
- if (maniptype == NF_NAT_MANIP_SRC) {
- /* Get rid of src port */
- newport = tuple->src.u.udp.port;
- portptr = &hdr->source;
- } else {
- /* Get rid of dst port */
- newport = tuple->dst.u.udp.port;
- portptr = &hdr->dest;
- }
- if (do_csum) {
- l3proto->csum_update(skb, iphdroff, &hdr->check,
- tuple, maniptype);
- inet_proto_csum_replace2(&hdr->check, skb, *portptr, newport,
- false);
- if (!hdr->check)
- hdr->check = CSUM_MANGLED_0;
- }
- *portptr = newport;
-}
-
-static bool udp_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 udphdr *hdr;
- bool do_csum;
-
- if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
- return false;
-
- hdr = (struct udphdr *)(skb->data + hdroff);
- do_csum = hdr->check || skb->ip_summed == CHECKSUM_PARTIAL;
-
- __udp_manip_pkt(skb, l3proto, iphdroff, hdr, tuple, maniptype, do_csum);
- return true;
-}
-
-#ifdef CONFIG_NF_NAT_PROTO_UDPLITE
-static u16 udplite_port_rover;
-
-static bool udplite_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 udphdr *hdr;
-
- if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
- return false;
-
- hdr = (struct udphdr *)(skb->data + hdroff);
- __udp_manip_pkt(skb, l3proto, iphdroff, hdr, tuple, maniptype, true);
- return true;
-}
-
-static void
-udplite_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,
- &udplite_port_rover);
-}
-
-const struct nf_nat_l4proto nf_nat_l4proto_udplite = {
- .l4proto = IPPROTO_UDPLITE,
- .manip_pkt = udplite_manip_pkt,
- .in_range = nf_nat_l4proto_in_range,
- .unique_tuple = udplite_unique_tuple,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- .nlattr_to_range = nf_nat_l4proto_nlattr_to_range,
-#endif
-};
-#endif /* CONFIG_NF_NAT_PROTO_UDPLITE */
-
-const struct nf_nat_l4proto nf_nat_l4proto_udp = {
- .l4proto = IPPROTO_UDP,
- .manip_pkt = udp_manip_pkt,
- .in_range = nf_nat_l4proto_in_range,
- .unique_tuple = udp_unique_tuple,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
- .nlattr_to_range = nf_nat_l4proto_nlattr_to_range,
-#endif
-};