[PATCH] knfsd: SUNRPC: Make rq_daddr field address-version independent

[mv-sheeva.git] / include / linux / sunrpc / svc.h

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 1178689b9156516cf80a8843599974e9f8873c76..6d6892fa1d4017085aaee586f7014bbe0abcc65b 100644 (file)
--- 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 +192,13 @@ static inline void svc_putu32(struct kvec *iov, __be32 val)
        iov->iov_len += sizeof(__be32);
 }
 
-       
+union svc_addr_u {
+    struct in_addr     addr;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+    struct in6_addr    addr6;
+#endif
+};
+
 /*
  * The context of a single thread, including the request currently being
  * processed.
@@ -200,8 +207,8 @@ 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 +234,8 @@ 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 */
@@ -255,6 +262,19 @@ struct svc_rqst {
        struct task_struct      *rq_task;       /* service thread */
 };
 
+/*
+ * 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 *svc_addr(struct svc_rqst *rqst)
+{
+       return (struct sockaddr *) &rqst->rq_addr;
+}
+
 /*
  * Check buffer bounds after decoding arguments
  */
@@ -292,9 +312,10 @@ 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];