Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 87 insertions, 0 deletions

diff --git a/include/linux/netfilter_ipv4/ip_nat.h b/include/linux/netfilter_ipv4/ip_nat.h
new file mode 100644
index 000000000000..2b72b86176f0
--- /dev/null
+++ b/include/linux/netfilter_ipv4/ip_nat.h
@@ -0,0 +1,87 @@
+#ifndef _IP_NAT_H
+#define _IP_NAT_H
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
+
+#define IP_NAT_MAPPING_TYPE_MAX_NAMELEN 16
+
+enum ip_nat_manip_type
+{
+	IP_NAT_MANIP_SRC,
+	IP_NAT_MANIP_DST
+};
+
+/* SRC manip occurs POST_ROUTING or LOCAL_IN */
+#define HOOK2MANIP(hooknum) ((hooknum) != NF_IP_POST_ROUTING && (hooknum) != NF_IP_LOCAL_IN)
+
+#define IP_NAT_RANGE_MAP_IPS 1
+#define IP_NAT_RANGE_PROTO_SPECIFIED 2
+
+/* NAT sequence number modifications */
+struct ip_nat_seq {
+	/* position of the last TCP sequence number 
+	 * modification (if any) */
+	u_int32_t correction_pos;
+	/* sequence number offset before and after last modification */
+	int32_t offset_before, offset_after;
+};
+
+/* Single range specification. */
+struct ip_nat_range
+{
+	/* Set to OR of flags above. */
+	unsigned int flags;
+
+	/* Inclusive: network order. */
+	u_int32_t min_ip, max_ip;
+
+	/* Inclusive: network order */
+	union ip_conntrack_manip_proto min, max;
+};
+
+/* For backwards compat: don't use in modern code. */
+struct ip_nat_multi_range_compat
+{
+	unsigned int rangesize; /* Must be 1. */
+
+	/* hangs off end. */
+	struct ip_nat_range range[1];
+};
+
+#ifdef __KERNEL__
+#include <linux/list.h>
+#include <linux/netfilter_ipv4/lockhelp.h>
+
+/* Protects NAT hash tables, and NAT-private part of conntracks. */
+DECLARE_RWLOCK_EXTERN(ip_nat_lock);
+
+/* The structure embedded in the conntrack structure. */
+struct ip_nat_info
+{
+	struct list_head bysource;
+
+	/* Helper (NULL if none). */
+	struct ip_nat_helper *helper;
+
+	struct ip_nat_seq seq[IP_CT_DIR_MAX];
+};
+
+struct ip_conntrack;
+
+/* Set up the info structure to map into this range. */
+extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack,
+				      const struct ip_nat_range *range,
+				      unsigned int hooknum);
+
+/* Is this tuple already taken? (not by us)*/
+extern int ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple,
+			     const struct ip_conntrack *ignored_conntrack);
+
+/* Calculate relative checksum. */
+extern u_int16_t ip_nat_cheat_check(u_int32_t oldvalinv,
+				    u_int32_t newval,
+				    u_int16_t oldcheck);
+#else  /* !__KERNEL__: iptables wants this to compile. */
+#define ip_nat_multi_range ip_nat_multi_range_compat
+#endif /*__KERNEL__*/
+#endif