X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fnfsd%2Fexport.h;h=78feb7beff75a41c535a715887c80aeb16e8c88e;hb=1269bc69b6649282091bb7007372acf4ab8357fd;hp=47d96684b61148fb0bf6d8f6fb9359f867547bf3;hpb=b009a873de05c6e0d7613df3584b6dcb2e4280ee;p=linux-2.6

diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 47d96684b6..78feb7beff 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -42,9 +42,44 @@
 #define	NFSEXP_NOACL		0x8000	/* reserved for possible ACL related use */
 #define NFSEXP_ALLFLAGS		0xFE3F
 
+/* The flags that may vary depending on security flavor: */
+#define NFSEXP_SECINFO_FLAGS	(NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
+					| NFSEXP_ALLSQUASH)
 
 #ifdef __KERNEL__
 
+/*
+ * FS Locations
+ */
+
+#define MAX_FS_LOCATIONS	128
+
+struct nfsd4_fs_location {
+	char *hosts; /* colon separated list of hosts */
+	char *path;  /* slash separated list of path components */
+};
+
+struct nfsd4_fs_locations {
+	uint32_t locations_count;
+	struct nfsd4_fs_location *locations;
+/* If we're not actually serving this data ourselves (only providing a
+ * list of replicas that do serve it) then we set "migrated": */
+	int migrated;
+};
+
+/*
+ * We keep an array of pseudoflavors with the export, in order from most
+ * to least preferred.  For the forseeable future, we don't expect more
+ * than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3,
+ * spkm3i, and spkm3p (and using all 8 at once should be rare).
+ */
+#define MAX_SECINFO_LIST	8
+
+struct exp_flavor_info {
+	u32	pseudoflavor;
+	u32	flags;
+};
+
 struct svc_export {
 	struct cache_head	h;
 	struct auth_domain *	ex_client;
@@ -55,18 +90,22 @@ struct svc_export {
 	uid_t			ex_anon_uid;
 	gid_t			ex_anon_gid;
 	int			ex_fsid;
+	unsigned char *		ex_uuid; /* 16 byte fsid */
+	struct nfsd4_fs_locations ex_fslocs;
+	int			ex_nflavors;
+	struct exp_flavor_info	ex_flavors[MAX_SECINFO_LIST];
 };
 
 /* an "export key" (expkey) maps a filehandlefragement to an
- * svc_export for a given client.  There can be two per export, one
- * for type 0 (dev/ino), one for type 1 (fsid)
+ * svc_export for a given client.  There can be several per export,
+ * for the different fsid types.
  */
 struct svc_expkey {
 	struct cache_head	h;
 
 	struct auth_domain *	ek_client;
 	int			ek_fsidtype;
-	u32			ek_fsid[3];
+	u32			ek_fsid[6];
 
 	struct vfsmount *	ek_mnt;
 	struct dentry *		ek_dentry;
@@ -74,10 +113,22 @@ struct svc_expkey {
 
 #define EX_SECURE(exp)		(!((exp)->ex_flags & NFSEXP_INSECURE_PORT))
 #define EX_ISSYNC(exp)		(!((exp)->ex_flags & NFSEXP_ASYNC))
-#define EX_RDONLY(exp)		((exp)->ex_flags & NFSEXP_READONLY)
 #define EX_NOHIDE(exp)		((exp)->ex_flags & NFSEXP_NOHIDE)
 #define EX_WGATHER(exp)		((exp)->ex_flags & NFSEXP_GATHERED_WRITES)
 
+static inline int EX_RDONLY(struct svc_export *exp, struct svc_rqst *rqstp)
+{
+	struct exp_flavor_info *f;
+	struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;
+
+	for (f = exp->ex_flavors; f < end; f++) {
+		if (f->pseudoflavor == rqstp->rq_flavor)
+			return f->flags & NFSEXP_READONLY;
+	}
+	return exp->ex_flags & NFSEXP_READONLY;
+}
+
+__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);
 
 /*
  * Function declarations
@@ -91,14 +142,20 @@ struct svc_export *	exp_get_by_name(struct auth_domain *clp,
 					struct vfsmount *mnt,
 					struct dentry *dentry,
 					struct cache_req *reqp);
+struct svc_export *	rqst_exp_get_by_name(struct svc_rqst *,
+					     struct vfsmount *,
+					     struct dentry *);
 struct svc_export *	exp_parent(struct auth_domain *clp,
 				   struct vfsmount *mnt,
 				   struct dentry *dentry,
 				   struct cache_req *reqp);
+struct svc_export *	rqst_exp_parent(struct svc_rqst *,
+					struct vfsmount *mnt,
+					struct dentry *dentry);
 int			exp_rootfh(struct auth_domain *, 
 					char *path, struct knfsd_fh *, int maxsize);
-int			exp_pseudoroot(struct auth_domain *, struct svc_fh *fhp, struct cache_req *creq);
-int			nfserrno(int errno);
+__be32			exp_pseudoroot(struct svc_rqst *, struct svc_fh *);
+__be32			nfserrno(int errno);
 
 extern struct cache_detail svc_export_cache;
 
@@ -114,6 +171,7 @@ static inline void exp_get(struct svc_export *exp)
 extern struct svc_export *
 exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv,
 	 struct cache_req *reqp);
+struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);
 
 #endif /* __KERNEL__ */