#include <linux/types.h>
struct udphdr {
- __u16 source;
- __u16 dest;
- __u16 len;
- __u16 check;
+ __be16 source;
+ __be16 dest;
+ __be16 len;
+ __sum16 check;
};
/* UDP socket options */
#define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */
#ifdef __KERNEL__
+#include <linux/types.h>
-#include <linux/config.h>
-#include <net/sock.h>
-#include <linux/ip.h>
+#include <net/inet_sock.h>
+#define UDP_HTABLE_SIZE 128
-struct udp_opt {
- int pending; /* Any pending frames ? */
- unsigned int corkflag; /* Cork is required */
- __u16 encap_type; /* Is this an Encapsulation socket? */
+struct udp_sock {
+ /* inet_sock has to be the first member */
+ struct inet_sock inet;
+ int pending; /* Any pending frames ? */
+ unsigned int corkflag; /* Cork is required */
+ __u16 encap_type; /* Is this an Encapsulation socket? */
/*
- * Following member retains the infomation to create a UDP header
+ * Following member retains the information to create a UDP header
* when the socket is uncorked.
*/
- __u16 len; /* total length of pending frames */
-};
-
-/* WARNING: don't change the layout of the members in udp_sock! */
-struct udp_sock {
- struct sock sk;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- struct ipv6_pinfo *pinet6;
-#endif
- struct inet_opt inet;
- struct udp_opt udp;
+ __u16 len; /* total length of pending frames */
+ /*
+ * Fields specific to UDP-Lite.
+ */
+ __u16 pcslen;
+ __u16 pcrlen;
+/* indicator bits used by pcflag: */
+#define UDPLITE_BIT 0x1 /* set by udplite proto init function */
+#define UDPLITE_SEND_CC 0x2 /* set via udplite setsockopt */
+#define UDPLITE_RECV_CC 0x4 /* set via udplite setsocktopt */
+ __u8 pcflag; /* marks socket as UDP-Lite if > 0 */
};
-static inline struct udp_opt * udp_sk(const struct sock *__sk)
+static inline struct udp_sock *udp_sk(const struct sock *sk)
{
- return &((struct udp_sock *)__sk)->udp;
+ return (struct udp_sock *)sk;
}
+#define IS_UDPLITE(__sk) (udp_sk(__sk)->pcflag)
#endif