#define _IP_VS_H
#include <asm/types.h> /* For __uXX types */
+#include <linux/types.h> /* For __beXX types in userland */
#define IP_VS_VERSION_CODE 0x010201
#define NVERSION(version) \
#define FTPPORT __constant_htons(21)
#define FTPDATA __constant_htons(20)
-/*
- * IPVS sysctl variables under the /proc/sys/net/ipv4/vs/
- */
-#define NET_IPV4_VS 21
-
-enum {
- NET_IPV4_VS_DEBUG_LEVEL=1,
- NET_IPV4_VS_AMEMTHRESH=2,
- NET_IPV4_VS_AMDROPRATE=3,
- NET_IPV4_VS_DROP_ENTRY=4,
- NET_IPV4_VS_DROP_PACKET=5,
- NET_IPV4_VS_SECURE_TCP=6,
- NET_IPV4_VS_TO_ES=7,
- NET_IPV4_VS_TO_SS=8,
- NET_IPV4_VS_TO_SR=9,
- NET_IPV4_VS_TO_FW=10,
- NET_IPV4_VS_TO_TW=11,
- NET_IPV4_VS_TO_CL=12,
- NET_IPV4_VS_TO_CW=13,
- NET_IPV4_VS_TO_LA=14,
- NET_IPV4_VS_TO_LI=15,
- NET_IPV4_VS_TO_SA=16,
- NET_IPV4_VS_TO_UDP=17,
- NET_IPV4_VS_TO_ICMP=18,
- NET_IPV4_VS_LBLC_EXPIRE=19,
- NET_IPV4_VS_LBLCR_EXPIRE=20,
- NET_IPV4_VS_CACHE_BYPASS=22,
- NET_IPV4_VS_EXPIRE_NODEST_CONN=23,
- NET_IPV4_VS_SYNC_THRESHOLD=24,
- NET_IPV4_VS_NAT_ICMP_SEND=25,
- NET_IPV4_VS_EXPIRE_QUIESCENT_TEMPLATE=26,
- NET_IPV4_VS_LAST
-};
-
/*
* TCP State Values
*/
unsigned int proto_off,
int inverse);
- int (*snat_handler)(struct sk_buff **pskb,
+ int (*snat_handler)(struct sk_buff *skb,
struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
- int (*dnat_handler)(struct sk_buff **pskb,
+ int (*dnat_handler)(struct sk_buff *skb,
struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
int (*csum_check)(struct sk_buff *skb, struct ip_vs_protocol *pp);
spinlock_t lock; /* lock for state transition */
volatile __u16 flags; /* status flags */
volatile __u16 state; /* state info */
+ volatile __u16 old_state; /* old state, to be used for
+ * state transition triggerd
+ * synchronization
+ */
/* Control members */
struct ip_vs_conn *control; /* Master control connection */
/* output hook: return false if can't linearize. diff set for TCP. */
int (*pkt_out)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff **, int *diff);
+ struct sk_buff *, int *diff);
/* input hook: return false if can't linearize. diff set for TCP. */
int (*pkt_in)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff **, int *diff);
+ struct sk_buff *, int *diff);
/* ip_vs_app initializer */
int (*init_conn)(struct ip_vs_app *, struct ip_vs_conn *);
extern int ip_vs_app_inc_get(struct ip_vs_app *inc);
extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
-extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff **pskb);
-extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff **pskb);
+extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
+extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
extern int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
char *o_buf, int o_len, char *n_buf, int n_len);
extern int ip_vs_app_init(void);
extern void ip_vs_use_count_dec(void);
extern int ip_vs_control_init(void);
extern void ip_vs_control_cleanup(void);
+extern struct ip_vs_dest *
+ip_vs_find_dest(__be32 daddr, __be16 dport,
+ __be32 vaddr, __be16 vport, __u16 protocol);
+extern struct ip_vs_dest *ip_vs_try_bind_dest(struct ip_vs_conn *cp);
/*
return fwd;
}
-extern int ip_vs_make_skb_writable(struct sk_buff **pskb, int len);
extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, int dir);
-extern u16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
+extern __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
+
+static inline __wsum ip_vs_check_diff4(__be32 old, __be32 new, __wsum oldsum)
+{
+ __be32 diff[2] = { ~old, new };
+
+ return csum_partial((char *) diff, sizeof(diff), oldsum);
+}
-static inline u16 ip_vs_check_diff(u32 old, u32 new, u16 oldsum)
+static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
{
- u32 diff[2] = { old, new };
+ __be16 diff[2] = { ~old, new };
- return csum_fold(csum_partial((char *) diff, sizeof(diff),
- oldsum ^ 0xFFFF));
+ return csum_partial((char *) diff, sizeof(diff), oldsum);
}
#endif /* __KERNEL__ */