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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:43:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:43:34 -0800
commit37c24b37fb2454e95136139d10bb6828967105bf (patch)
treed5c3fa61fa689567caeb2a7cb5891473e444ff7d /include/linux/nfsd/export.h
parent5ac4d630eb87656bd4dc313b910776d54d88ea28 (diff)
parent7663dacd926584093dfc350892792054692b6cb3 (diff)
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.33' of git://linux-nfs.org/~bfields/linux: (42 commits) nfsd: remove pointless paths in file headers nfsd: move most of nfsfh.h to fs/nfsd nfsd: remove unused field rq_reffh nfsd: enable V4ROOT exports nfsd: make V4ROOT exports read-only nfsd: restrict filehandles accepted in V4ROOT case nfsd: allow exports of symlinks nfsd: filter readdir results in V4ROOT case nfsd: filter lookup results in V4ROOT case nfsd4: don't continue "under" mounts in V4ROOT case nfsd: introduce export flag for v4 pseudoroot nfsd: let "insecure" flag vary by pseudoflavor nfsd: new interface to advertise export features nfsd: Move private headers to source directory vfs: nfsctl.c un-used nfsd #includes lockd: Remove un-used nfsd headers #includes s390: remove un-used nfsd #includes sparc: remove un-used nfsd #includes parsic: remove un-used nfsd #includes compat.c: Remove dependence on nfsd private headers ...
Diffstat (limited to 'include/linux/nfsd/export.h')
-rw-r--r--include/linux/nfsd/export.h19
1 files changed, 15 insertions, 4 deletions
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index a6d9ef2bb34..8ae78a61eea 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -12,7 +12,7 @@
# include <linux/types.h>
#ifdef __KERNEL__
-# include <linux/in.h>
+# include <linux/nfsd/nfsfh.h>
#endif
/*
@@ -39,11 +39,23 @@
#define NFSEXP_FSID 0x2000
#define NFSEXP_CROSSMOUNT 0x4000
#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
-#define NFSEXP_ALLFLAGS 0xFE3F
+/*
+ * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
+ * clients, and only to the single directory that is the root of the
+ * export; further lookup and readdir operations are treated as if every
+ * subdirectory was a mountpoint, and ignored if they are not themselves
+ * exported. This is used by nfsd and mountd to construct the NFSv4
+ * pseudofilesystem, which provides access only to paths leading to each
+ * exported filesystem.
+ */
+#define NFSEXP_V4ROOT 0x10000
+/* All flags that we claim to support. (Note we don't support NOACL.) */
+#define NFSEXP_ALLFLAGS 0x17E3F
/* The flags that may vary depending on security flavor: */
#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
- | NFSEXP_ALLSQUASH)
+ | NFSEXP_ALLSQUASH \
+ | NFSEXP_INSECURE_PORT)
#ifdef __KERNEL__
@@ -108,7 +120,6 @@ struct svc_expkey {
struct path ek_path;
};
-#define EX_SECURE(exp) (!((exp)->ex_flags & NFSEXP_INSECURE_PORT))
#define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC))
#define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE)
#define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES)