nfsd: permit unauthenticated stat of export root

[safe/jmp/linux-2.6] / include / linux / nfsd / nfsd.h

diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 21ee440..2126940 100644 (file)
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -12,7 +12,6 @@
 
 #include <linux/types.h>
 #include <linux/unistd.h>
-#include <linux/dirent.h>
 #include <linux/fs.h>
 #include <linux/posix_acl.h>
 #include <linux/mount.h>
@@ -28,20 +27,21 @@
 #define NFSD_SUPPORTED_MINOR_VERSION   0
 
 /*
- * Special flags for nfsd_permission. These must be different from MAY_READ,
- * MAY_WRITE, and MAY_EXEC.
+ * Flags for nfsd_permission
  */
-#define MAY_NOP                        0
-#define MAY_SATTR              8
-#define MAY_TRUNC              16
-#define MAY_LOCK               32
-#define MAY_OWNER_OVERRIDE     64
-#define        MAY_LOCAL_ACCESS        128 /* IRIX doing local access check on device special file*/
-#if (MAY_SATTR | MAY_TRUNC | MAY_LOCK | MAY_OWNER_OVERRIDE | MAY_LOCAL_ACCESS) & (MAY_READ | MAY_WRITE | MAY_EXEC)
-# error "please use a different value for MAY_SATTR or MAY_TRUNC or MAY_LOCK or MAY_LOCAL_ACCESS or MAY_OWNER_OVERRIDE."
-#endif
-#define MAY_CREATE             (MAY_EXEC|MAY_WRITE)
-#define MAY_REMOVE             (MAY_EXEC|MAY_WRITE|MAY_TRUNC)
+#define NFSD_MAY_NOP           0
+#define NFSD_MAY_EXEC          1 /* == MAY_EXEC */
+#define NFSD_MAY_WRITE         2 /* == MAY_WRITE */
+#define NFSD_MAY_READ          4 /* == MAY_READ */
+#define NFSD_MAY_SATTR         8
+#define NFSD_MAY_TRUNC         16
+#define NFSD_MAY_LOCK          32
+#define NFSD_MAY_OWNER_OVERRIDE        64
+#define NFSD_MAY_LOCAL_ACCESS  128 /* IRIX doing local access check on device special file*/
+#define NFSD_MAY_BYPASS_GSS_ON_ROOT 256
+
+#define NFSD_MAY_CREATE                (NFSD_MAY_EXEC|NFSD_MAY_WRITE)
+#define NFSD_MAY_REMOVE                (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
 
 /*
  * Callback function for readdir
@@ -54,6 +54,7 @@ typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
 extern struct svc_program      nfsd_program;
 extern struct svc_version      nfsd_version2, nfsd_version3,
                                nfsd_version4;
+extern struct mutex            nfsd_mutex;
 extern struct svc_serv         *nfsd_serv;
 
 extern struct seq_operations nfs_exports_op;
@@ -125,7 +126,7 @@ int         nfsd_truncate(struct svc_rqst *, struct svc_fh *,
 __be32         nfsd_readdir(struct svc_rqst *, struct svc_fh *,
                             loff_t *, struct readdir_cd *, filldir_t);
 __be32         nfsd_statfs(struct svc_rqst *, struct svc_fh *,
-                               struct kstatfs *);
+                               struct kstatfs *, int access);
 
 int            nfsd_notify_change(struct inode *, struct iattr *);
 __be32         nfsd_permission(struct svc_rqst *, struct svc_export *,
@@ -329,7 +330,7 @@ extern struct timeval       nfssvc_boot;
 (FATTR4_WORD0_SIZE              | FATTR4_WORD0_ACL                                         )
 #define NFSD_WRITEABLE_ATTRS_WORD1                                                          \
 (FATTR4_WORD1_MODE              | FATTR4_WORD1_OWNER         | FATTR4_WORD1_OWNER_GROUP     \
- | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY_SET)
+ | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
 
 #endif /* CONFIG_NFSD_V4 */