1 files changed, 35 insertions, 8 deletions

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 64f3d60c72af..35fa4d5aadd0 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -11,6 +11,7 @@
 #define SUNRPC_SVC_H
 
 #include <linux/in.h>
+#include <linux/in6.h>
 #include <linux/sunrpc/types.h>
 #include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/auth.h>
@@ -191,7 +192,11 @@ static inline void svc_putu32(struct kvec *iov, __be32 val)
         iov->iov_len += sizeof(__be32);
 }
 
-        
+union svc_addr_u {
+    struct in_addr      addr;
+    struct in6_addr     addr6;
+};
+
 /*
  * The context of a single thread, including the request currently being
  * processed.
@@ -200,8 +205,8 @@ struct svc_rqst {
         struct list_head        rq_list;        /* idle list */
         struct list_head        rq_all;         /* all threads list */
         struct svc_sock *       rq_sock;        /* socket */
-        struct sockaddr_in      rq_addr;        /* peer address */
-        int                     rq_addrlen;
+        struct sockaddr_storage rq_addr;        /* peer address */
+        size_t                  rq_addrlen;
 
         struct svc_serv *       rq_server;      /* RPC service definition */
         struct svc_pool *       rq_pool;        /* thread pool */
@@ -227,8 +232,8 @@ struct svc_rqst {
         unsigned short
                                 rq_secure  : 1; /* secure port */
 
-
-        __be32                  rq_daddr;       /* dest addr of request - reply from here */
+        union svc_addr_u        rq_daddr;       /* dest addr of request
+                                                 *  - reply from here */
 
         void *                  rq_argp;        /* decoded arguments */
         void *                  rq_resp;        /* xdr'd results */
@@ -256,6 +261,24 @@ struct svc_rqst {
 };
 
 /*
+ * Rigorous type checking on sockaddr type conversions
+ */
+static inline struct sockaddr_in *svc_addr_in(struct svc_rqst *rqst)
+{
+        return (struct sockaddr_in *) &rqst->rq_addr;
+}
+
+static inline struct sockaddr_in6 *svc_addr_in6(struct svc_rqst *rqst)
+{
+        return (struct sockaddr_in6 *) &rqst->rq_addr;
+}
+
+static inline struct sockaddr *svc_addr(struct svc_rqst *rqst)
+{
+        return (struct sockaddr *) &rqst->rq_addr;
+}
+
+/*
  * Check buffer bounds after decoding arguments
  */
 static inline int
@@ -292,9 +315,10 @@ static inline void svc_free_res_pages(struct svc_rqst *rqstp)
 
 struct svc_deferred_req {
         u32                     prot;   /* protocol (UDP or TCP) */
-        struct sockaddr_in      addr;
-        struct svc_sock         *svsk;  /* where reply must go */
-        __be32                  daddr;  /* where reply must come from */
+        struct svc_sock         *svsk;
+        struct sockaddr_storage addr;   /* where reply must go */
+        size_t                  addrlen;
+        union svc_addr_u        daddr;  /* where reply must come from */
         struct cache_deferred_req handle;
         int                     argslen;
         __be32                  args[0];
@@ -368,5 +392,8 @@ int		   svc_register(struct svc_serv *, int, unsigned short);
 void               svc_wake_up(struct svc_serv *);
 void               svc_reserve(struct svc_rqst *rqstp, int space);
 struct svc_pool *  svc_pool_for_cpu(struct svc_serv *serv, int cpu);
+char *             svc_print_addr(struct svc_rqst *, char *, size_t);
+
+#define RPC_MAX_ADDRBUFLEN      (63U)
 
 #endif /* SUNRPC_SVC_H */