5 files changed, 104 insertions, 16 deletions

diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 2d8b211b9324..6f52b4d7c447 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -59,6 +59,15 @@ struct cache_head {
 
 #define CACHE_NEW_EXPIRY 120    /* keep new things pending confirmation for 120 seconds */
 
+struct cache_detail_procfs {
+        struct proc_dir_entry   *proc_ent;
+        struct proc_dir_entry   *flush_ent, *channel_ent, *content_ent;
+};
+
+struct cache_detail_pipefs {
+        struct dentry *dir;
+};
+
 struct cache_detail {
         struct module *         owner;
         int                     hash_size;
@@ -70,15 +79,17 @@ struct cache_detail {
         char                    *name;
         void                    (*cache_put)(struct kref *);
 
-        void                    (*cache_request)(struct cache_detail *cd,
-                                                 struct cache_head *h,
-                                                 char **bpp, int *blen);
+        int                     (*cache_upcall)(struct cache_detail *,
+                                                struct cache_head *);
+
         int                     (*cache_parse)(struct cache_detail *,
                                                char *buf, int len);
 
         int                     (*cache_show)(struct seq_file *m,
                                               struct cache_detail *cd,
                                               struct cache_head *h);
+        void                    (*warn_no_listener)(struct cache_detail *cd,
+                                              int has_died);
 
         struct cache_head *     (*alloc)(void);
         int                     (*match)(struct cache_head *orig, struct cache_head *new);
@@ -96,13 +107,15 @@ struct cache_detail {
 
         /* fields for communication over channel */
         struct list_head        queue;
-        struct proc_dir_entry   *proc_ent;
-        struct proc_dir_entry   *flush_ent, *channel_ent, *content_ent;
 
         atomic_t                readers;                /* how many time is /chennel open */
         time_t                  last_close;             /* if no readers, when did last close */
         time_t                  last_warn;              /* when we last warned about no readers */
-        void                    (*warn_no_listener)(struct cache_detail *cd);
+
+        union {
+                struct cache_detail_procfs procfs;
+                struct cache_detail_pipefs pipefs;
+        } u;
 };
 
 
@@ -127,6 +140,10 @@ struct cache_deferred_req {
 };
 
 
+extern const struct file_operations cache_file_operations_pipefs;
+extern const struct file_operations content_file_operations_pipefs;
+extern const struct file_operations cache_flush_operations_pipefs;
+
 extern struct cache_head *
 sunrpc_cache_lookup(struct cache_detail *detail,
                     struct cache_head *key, int hash);
@@ -134,6 +151,13 @@ extern struct cache_head *
 sunrpc_cache_update(struct cache_detail *detail,
                     struct cache_head *new, struct cache_head *old, int hash);
 
+extern int
+sunrpc_cache_pipe_upcall(struct cache_detail *detail, struct cache_head *h,
+                void (*cache_request)(struct cache_detail *,
+                                      struct cache_head *,
+                                      char **,
+                                      int *));
+
 
 extern void cache_clean_deferred(void *owner);
 
@@ -171,6 +195,10 @@ extern void cache_purge(struct cache_detail *detail);
 extern int cache_register(struct cache_detail *cd);
 extern void cache_unregister(struct cache_detail *cd);
 
+extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *,
+                                        mode_t, struct cache_detail *);
+extern void sunrpc_cache_unregister_pipefs(struct cache_detail *);
+
 extern void qword_add(char **bpp, int *lp, char *str);
 extern void qword_addhex(char **bpp, int *lp, char *buf, int blen);
 extern int qword_get(char **bpp, char *dest, int bufsize);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 37881f1a0bd7..ab3f6e90caa5 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -9,6 +9,10 @@
 #ifndef _LINUX_SUNRPC_CLNT_H
 #define _LINUX_SUNRPC_CLNT_H
 
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+
 #include <linux/sunrpc/msg_prot.h>
 #include <linux/sunrpc/sched.h>
 #include <linux/sunrpc/xprt.h>
@@ -17,6 +21,7 @@
 #include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/timer.h>
 #include <asm/signal.h>
+#include <linux/path.h>
 
 struct rpc_inode;
 
@@ -50,9 +55,7 @@ struct rpc_clnt {
 
         int                     cl_nodelen;     /* nodename length */
         char                    cl_nodename[UNX_MAXNODENAME];
-        char                    cl_pathname[30];/* Path in rpc_pipe_fs */
-        struct vfsmount *       cl_vfsmnt;
-        struct dentry *         cl_dentry;      /* inode */
+        struct path             cl_path;
         struct rpc_clnt *       cl_parent;      /* Points to parent of clones */
         struct rpc_rtt          cl_rtt_default;
         struct rpc_timeout      cl_timeout_default;
@@ -151,5 +154,39 @@ void		rpc_force_rebind(struct rpc_clnt *);
 size_t          rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
 const char      *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
 
+size_t          rpc_ntop(const struct sockaddr *, char *, const size_t);
+size_t          rpc_pton(const char *, const size_t,
+                         struct sockaddr *, const size_t);
+char *          rpc_sockaddr2uaddr(const struct sockaddr *);
+size_t          rpc_uaddr2sockaddr(const char *, const size_t,
+                                   struct sockaddr *, const size_t);
+
+static inline unsigned short rpc_get_port(const struct sockaddr *sap)
+{
+        switch (sap->sa_family) {
+        case AF_INET:
+                return ntohs(((struct sockaddr_in *)sap)->sin_port);
+        case AF_INET6:
+                return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
+        }
+        return 0;
+}
+
+static inline void rpc_set_port(struct sockaddr *sap,
+                                const unsigned short port)
+{
+        switch (sap->sa_family) {
+        case AF_INET:
+                ((struct sockaddr_in *)sap)->sin_port = htons(port);
+                break;
+        case AF_INET6:
+                ((struct sockaddr_in6 *)sap)->sin6_port = htons(port);
+                break;
+        }
+}
+
+#define IPV6_SCOPE_DELIMITER            '%'
+#define IPV6_SCOPE_ID_LEN               sizeof("%nnnnnnnnnn")
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_CLNT_H */
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 70df4f1d8847..77e624883393 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -189,7 +189,22 @@ typedef __be32	rpc_fraghdr;
  * Additionally, the two alternative forms specified in Section 2.2 of
  * [RFC2373] are also acceptable.
  */
-#define RPCBIND_MAXUADDRLEN     (56u)
+
+#include <linux/inet.h>
+
+/* Maximum size of the port number part of a universal address */
+#define RPCBIND_MAXUADDRPLEN    sizeof(".255.255")
+
+/* Maximum size of an IPv4 universal address */
+#define RPCBIND_MAXUADDR4LEN    \
+                (INET_ADDRSTRLEN + RPCBIND_MAXUADDRPLEN)
+
+/* Maximum size of an IPv6 universal address */
+#define RPCBIND_MAXUADDR6LEN    \
+                (INET6_ADDRSTRLEN + RPCBIND_MAXUADDRPLEN)
+
+/* Assume INET6_ADDRSTRLEN will always be larger than INET_ADDRSTRLEN... */
+#define RPCBIND_MAXUADDRLEN     RPCBIND_MAXUADDR6LEN
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index cea764c2359f..a92571a34556 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -32,8 +32,8 @@ struct rpc_inode {
         wait_queue_head_t waitq;
 #define RPC_PIPE_WAIT_FOR_OPEN  1
         int flags;
-        struct rpc_pipe_ops *ops;
         struct delayed_work queue_timeout;
+        const struct rpc_pipe_ops *ops;
 };
 
 static inline struct rpc_inode *
@@ -44,9 +44,19 @@ RPC_I(struct inode *inode)
 
 extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
 
-extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
-extern int rpc_rmdir(struct dentry *);
-extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct rpc_pipe_ops *, int flags);
+struct rpc_clnt;
+extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
+extern int rpc_remove_client_dir(struct dentry *);
+
+struct cache_detail;
+extern struct dentry *rpc_create_cache_dir(struct dentry *,
+                                           struct qstr *,
+                                           mode_t umode,
+                                           struct cache_detail *);
+extern void rpc_remove_cache_dir(struct dentry *);
+
+extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
+                                 const struct rpc_pipe_ops *, int flags);
 extern int rpc_unlink(struct dentry *);
 extern struct vfsmount *rpc_get_mount(void);
 extern void rpc_put_mount(void);
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 1175d58efc2e..c090df442572 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -38,10 +38,8 @@ enum rpc_display_format_t {
         RPC_DISPLAY_ADDR = 0,
         RPC_DISPLAY_PORT,
         RPC_DISPLAY_PROTO,
-        RPC_DISPLAY_ALL,
         RPC_DISPLAY_HEX_ADDR,
         RPC_DISPLAY_HEX_PORT,
-        RPC_DISPLAY_UNIVERSAL_ADDR,
         RPC_DISPLAY_NETID,
         RPC_DISPLAY_MAX,
 };