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Subject[RFC PATCH 06/11] afs: Add some protocol defs
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Add some protocol definitions, including max field lengths, flag defs and
an XDR-encoded UUID def.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/afs/afs.h | 25 ++++++++++++++++++++-----
fs/afs/afs_vl.h | 6 +++++-
2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/fs/afs/afs.h b/fs/afs/afs.h
index 93053115bcfc..0d837bddbf7d 100644
--- a/fs/afs/afs.h
+++ b/fs/afs/afs.h
@@ -14,11 +14,14 @@

#include <linux/in.h>

-#define AFS_MAXCELLNAME 64 /* maximum length of a cell name */
-#define AFS_MAXVOLNAME 64 /* maximum length of a volume name */
-#define AFSNAMEMAX 256 /* maximum length of a filename plus NUL */
-#define AFSPATHMAX 1024 /* maximum length of a pathname plus NUL */
-#define AFSOPAQUEMAX 1024 /* maximum length of an opaque field */
+#define AFS_MAXCELLNAME 64 /* Maximum length of a cell name */
+#define AFS_MAXVOLNAME 64 /* Maximum length of a volume name */
+#define AFS_MAXNSERVERS 8 /* Maximum servers in a basic volume record */
+#define AFS_NMAXNSERVERS 13 /* Maximum servers in a N/U-class volume record */
+#define AFS_MAXTYPES 3 /* Maximum number of volume types */
+#define AFSNAMEMAX 256 /* Maximum length of a filename plus NUL */
+#define AFSPATHMAX 1024 /* Maximum length of a pathname plus NUL */
+#define AFSOPAQUEMAX 1024 /* Maximum length of an opaque field */

typedef unsigned afs_volid_t;
typedef unsigned afs_vnodeid_t;
@@ -176,4 +179,16 @@ struct afs_volume_status {

#define AFS_BLOCK_SIZE 1024

+/*
+ * XDR encoding of UUID in AFS.
+ */
+struct afs_uuid__xdr {
+ __be32 time_low;
+ __be32 time_mid;
+ __be32 time_hi_and_version;
+ __be32 clock_seq_hi_and_reserved;
+ __be32 clock_seq_low;
+ __be32 node[6];
+};
+
#endif /* AFS_H */
diff --git a/fs/afs/afs_vl.h b/fs/afs/afs_vl.h
index 800f607ffaf5..5b7cd9d7e9e6 100644
--- a/fs/afs/afs_vl.h
+++ b/fs/afs/afs_vl.h
@@ -74,11 +74,15 @@ struct afs_vldbentry {
struct in_addr addr; /* server address */
unsigned partition; /* partition ID on this server */
unsigned flags; /* server specific flags */
-#define AFS_VLSF_NEWREPSITE 0x0001 /* unused */
+#define AFS_VLSF_NEWREPSITE 0x0001 /* Ignore all 'non-new' servers */
#define AFS_VLSF_ROVOL 0x0002 /* this server holds a R/O instance of the volume */
#define AFS_VLSF_RWVOL 0x0004 /* this server holds a R/W instance of the volume */
#define AFS_VLSF_BACKVOL 0x0008 /* this server holds a backup instance of the volume */
+#define AFS_VLSF_UUID 0x0010 /* This server is referred to by its UUID */
+#define AFS_VLSF_DONTUSE 0x0020 /* This server ref should be ignored */
} servers[8];
};

+#define AFS_VLDB_MAXNAMELEN 65
+
#endif /* AFS_VL_H */
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