1 files changed, 28 insertions, 1 deletions

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index a829b77523cf..eb16c7beed1e 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -16,7 +16,7 @@
 #ifndef _INET_SOCK_H
 #define _INET_SOCK_H
 
-
+#include <linux/bitops.h>
 #include <linux/kmemcheck.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -184,6 +184,7 @@ struct inet_sock {
                                 mc_all:1,
                                 nodefrag:1;
         __u8                    rcv_tos;
+        __u8                    convert_csum;
         int                     uc_index;
         int                     mc_index;
         __be32                  mc_addr;
@@ -194,6 +195,16 @@ struct inet_sock {
 #define IPCORK_OPT      1       /* ip-options has been held in ipcork.opt */
 #define IPCORK_ALLFRAG  2       /* always fragment (for ipv6 for now) */
 
+/* cmsg flags for inet */
+#define IP_CMSG_PKTINFO         BIT(0)
+#define IP_CMSG_TTL             BIT(1)
+#define IP_CMSG_TOS             BIT(2)
+#define IP_CMSG_RECVOPTS        BIT(3)
+#define IP_CMSG_RETOPTS         BIT(4)
+#define IP_CMSG_PASSSEC         BIT(5)
+#define IP_CMSG_ORIGDSTADDR     BIT(6)
+#define IP_CMSG_CHECKSUM        BIT(7)
+
 static inline struct inet_sock *inet_sk(const struct sock *sk)
 {
         return (struct inet_sock *)sk;
@@ -250,4 +261,20 @@ static inline __u8 inet_sk_flowi_flags(const struct sock *sk)
         return flags;
 }
 
+static inline void inet_inc_convert_csum(struct sock *sk)
+{
+        inet_sk(sk)->convert_csum++;
+}
+
+static inline void inet_dec_convert_csum(struct sock *sk)
+{
+        if (inet_sk(sk)->convert_csum > 0)
+                inet_sk(sk)->convert_csum--;
+}
+
+static inline bool inet_get_convert_csum(struct sock *sk)
+{
+        return !!inet_sk(sk)->convert_csum;
+}
+
 #endif  /* _INET_SOCK_H */