nfs: Fix misparsing of nfsv4 fs_locations attribute

[safe/jmp/linux-2.6] / fs / nfs / internal.h

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index a28f6ce..5d2a5d3 100644 (file)
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -3,10 +3,9 @@
  */
 
 #include <linux/mount.h>
+#include <linux/security.h>
 
 struct nfs_string;
-struct nfs_mount_data;
-struct nfs4_mount_data;
 
 /* Maximum number of readahead requests
  * FIXME: this should really be a sysctl so that users may tune it to suit
@@ -23,24 +22,59 @@ struct nfs_clone_mount {
        struct nfs_fattr *fattr;
        char *hostname;
        char *mnt_path;
-       struct sockaddr_in *addr;
+       struct sockaddr *addr;
+       size_t addrlen;
        rpc_authflavor_t authflavor;
 };
 
+/*
+ * In-kernel mount arguments
+ */
+struct nfs_parsed_mount_data {
+       int                     flags;
+       int                     rsize, wsize;
+       int                     timeo, retrans;
+       int                     acregmin, acregmax,
+                               acdirmin, acdirmax;
+       int                     namlen;
+       unsigned int            bsize;
+       unsigned int            auth_flavor_len;
+       rpc_authflavor_t        auth_flavors[1];
+       char                    *client_address;
+
+       struct {
+               struct sockaddr_storage address;
+               size_t                  addrlen;
+               char                    *hostname;
+               u32                     version;
+               unsigned short          port;
+               unsigned short          protocol;
+       } mount_server;
+
+       struct {
+               struct sockaddr_storage address;
+               size_t                  addrlen;
+               char                    *hostname;
+               char                    *export_path;
+               unsigned short          port;
+               unsigned short          protocol;
+       } nfs_server;
+
+       struct security_mnt_opts lsm_opts;
+};
+
 /* client.c */
 extern struct rpc_program nfs_program;
 
 extern void nfs_put_client(struct nfs_client *);
-extern struct nfs_client *nfs_find_client(const struct sockaddr_in *, int);
-extern struct nfs_server *nfs_create_server(const struct nfs_mount_data *,
-                                           struct nfs_fh *);
-extern struct nfs_server *nfs4_create_server(const struct nfs4_mount_data *,
-                                            const char *,
-                                            const struct sockaddr_in *,
-                                            const char *,
-                                            const char *,
-                                            rpc_authflavor_t,
-                                            struct nfs_fh *);
+extern struct nfs_client *nfs_find_client(const struct sockaddr *, u32);
+extern struct nfs_client *nfs_find_client_next(struct nfs_client *);
+extern struct nfs_server *nfs_create_server(
+                                       const struct nfs_parsed_mount_data *,
+                                       struct nfs_fh *);
+extern struct nfs_server *nfs4_create_server(
+                                       const struct nfs_parsed_mount_data *,
+                                       struct nfs_fh *);
 extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *,
                                                      struct nfs_fh *);
 extern void nfs_free_server(struct nfs_server *server);
@@ -82,13 +116,8 @@ extern void nfs_destroy_readpagecache(void);
 extern int __init nfs_init_writepagecache(void);
 extern void nfs_destroy_writepagecache(void);
 
-#ifdef CONFIG_NFS_DIRECTIO
 extern int __init nfs_init_directcache(void);
 extern void nfs_destroy_directcache(void);
-#else
-#define nfs_init_directcache() (0)
-#define nfs_destroy_directcache() do {} while(0)
-#endif
 
 /* nfs2xdr.c */
 extern int nfs_stat_to_errno(int);
@@ -107,16 +136,13 @@ extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
 /* nfs4proc.c */
 #ifdef CONFIG_NFS_V4
 extern struct rpc_procinfo nfs4_procedures[];
-
-extern int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
-                                 struct nfs4_fs_locations *fs_locations,
-                                 struct page *page);
 #endif
 
 /* dir.c */
 extern int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask);
 
 /* inode.c */
+extern struct workqueue_struct *nfsiod_workqueue;
 extern struct inode *nfs_alloc_inode(struct super_block *sb);
 extern void nfs_destroy_inode(struct inode *);
 extern int nfs_write_inode(struct inode *,int);
@@ -124,8 +150,10 @@ extern void nfs_clear_inode(struct inode *);
 #ifdef CONFIG_NFS_V4
 extern void nfs4_clear_inode(struct inode *);
 #endif
+void nfs_zap_acl_cache(struct inode *inode);
 
 /* super.c */
+void nfs_parse_ip_address(char *, size_t, struct sockaddr *, size_t *);
 extern struct file_system_type nfs_xdev_fs_type;
 #ifdef CONFIG_NFS_V4
 extern struct file_system_type nfs4_xdev_fs_type;
@@ -136,6 +164,8 @@ extern struct rpc_stat nfs_rpcstat;
 
 extern int __init register_nfs_fs(void);
 extern void __exit unregister_nfs_fs(void);
+extern void nfs_sb_active(struct super_block *sb);
+extern void nfs_sb_deactive(struct super_block *sb);
 
 /* namespace.c */
 extern char *nfs_path(const char *base,
@@ -187,9 +217,9 @@ unsigned long nfs_block_bits(unsigned long bsize, unsigned char *nrbitsp)
 /*
  * Calculate the number of 512byte blocks used.
  */
-static inline unsigned long nfs_calc_block_size(u64 tsize)
+static inline blkcnt_t nfs_calc_block_size(u64 tsize)
 {
-       loff_t used = (tsize + 511) >> 9;
+       blkcnt_t used = (tsize + 511) >> 9;
        return (used > ULONG_MAX) ? ULONG_MAX : used;
 }
 
@@ -235,3 +265,36 @@ unsigned int nfs_page_length(struct page *page)
        }
        return 0;
 }
+
+/*
+ * Determine the number of pages in an array of length 'len' and
+ * with a base offset of 'base'
+ */
+static inline
+unsigned int nfs_page_array_len(unsigned int base, size_t len)
+{
+       return ((unsigned long)len + (unsigned long)base +
+               PAGE_SIZE - 1) >> PAGE_SHIFT;
+}
+
+#define IPV6_SCOPE_DELIMITER   '%'
+
+/*
+ * Set the port number in an address.  Be agnostic about the address
+ * family.
+ */
+static inline void nfs_set_port(struct sockaddr *sap, unsigned short port)
+{
+       switch (sap->sa_family) {
+       case AF_INET: {
+             struct sockaddr_in *ap = (struct sockaddr_in *)sap;
+             ap->sin_port = htons(port);
+             break;
+       }
+       case AF_INET6: {
+              struct sockaddr_in6 *ap = (struct sockaddr_in6 *)sap;
+              ap->sin6_port = htons(port);
+              break;
+       }
+       }
+}