nfs41: common protocol definitions

Define all NFSv4.1 common operation and error code constants.

Note that some of the definitions are used by both the nfs41 client
and the server code. This patch is duplicated in the nfs41 and nfsd41
sessions patchset.

Signed-off-by: Andy Adamson<andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: add exchange id flags]
Signed-off-by: Mike Sager <sager@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[removed server-only hunk changing NFSERR_REPLAY_ME]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: add SEQ4_XX to nfs41-common-protocol]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: generic error code update]
[nfs41: reverse EXCHGID4_INVAL_FLAG_MASK_{A,R}]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 127 insertions, 1 deletions

diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index b912311a56b1..29ed600e193b 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -21,6 +21,7 @@
 #define NFS4_FHSIZE             128
 #define NFS4_MAXPATHLEN         PATH_MAX
 #define NFS4_MAXNAMLEN          NAME_MAX
+#define NFS4_MAX_SESSIONID_LEN  16
 
 #define NFS4_ACCESS_READ        0x0001
 #define NFS4_ACCESS_LOOKUP      0x0002
@@ -38,6 +39,7 @@
 #define NFS4_OPEN_RESULT_CONFIRM 0x0002
 #define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
 
+#define NFS4_SHARE_ACCESS_MASK  0x000F
 #define NFS4_SHARE_ACCESS_READ  0x0001
 #define NFS4_SHARE_ACCESS_WRITE 0x0002
 #define NFS4_SHARE_ACCESS_BOTH  0x0003
@@ -45,6 +47,19 @@
 #define NFS4_SHARE_DENY_WRITE   0x0002
 #define NFS4_SHARE_DENY_BOTH    0x0003
 
+/* nfs41 */
+#define NFS4_SHARE_WANT_MASK            0xFF00
+#define NFS4_SHARE_WANT_NO_PREFERENCE   0x0000
+#define NFS4_SHARE_WANT_READ_DELEG      0x0100
+#define NFS4_SHARE_WANT_WRITE_DELEG     0x0200
+#define NFS4_SHARE_WANT_ANY_DELEG       0x0300
+#define NFS4_SHARE_WANT_NO_DELEG        0x0400
+#define NFS4_SHARE_WANT_CANCEL          0x0500
+
+#define NFS4_SHARE_WHEN_MASK            0xF0000
+#define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL        0x10000
+#define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED          0x20000
+
 #define NFS4_SET_TO_SERVER_TIME 0
 #define NFS4_SET_TO_CLIENT_TIME 1
 
@@ -88,6 +103,31 @@
 #define NFS4_ACE_GENERIC_EXECUTE              0x001200A0
 #define NFS4_ACE_MASK_ALL                     0x001F01FF
 
+#define EXCHGID4_FLAG_SUPP_MOVED_REFER          0x00000001
+#define EXCHGID4_FLAG_SUPP_MOVED_MIGR           0x00000002
+#define EXCHGID4_FLAG_USE_NON_PNFS              0x00010000
+#define EXCHGID4_FLAG_USE_PNFS_MDS              0x00020000
+#define EXCHGID4_FLAG_USE_PNFS_DS               0x00040000
+#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A       0x40000000
+#define EXCHGID4_FLAG_CONFIRMED_R               0x80000000
+/*
+ * Since the validity of these bits depends on whether
+ * they're set in the argument or response, have separate
+ * invalid flag masks for arg (_A) and resp (_R).
+ */
+#define EXCHGID4_FLAG_MASK_A                    0x40070003
+#define EXCHGID4_FLAG_MASK_R                    0x80070003
+
+#define SEQ4_STATUS_CB_PATH_DOWN                0x00000001
+#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING    0x00000002
+#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED     0x00000004
+#define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED   0x00000008
+#define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED  0x00000010
+#define SEQ4_STATUS_ADMIN_STATE_REVOKED         0x00000020
+#define SEQ4_STATUS_RECALLABLE_STATE_REVOKED    0x00000040
+#define SEQ4_STATUS_LEASE_MOVED                 0x00000080
+#define SEQ4_STATUS_RESTART_RECLAIM_NEEDED      0x00000100
+
 #define NFS4_MAX_UINT64 (~(u64)0)
 
 enum nfs4_acl_whotype {
@@ -154,6 +194,28 @@ enum nfs_opnum4 {
         OP_VERIFY = 37,
         OP_WRITE = 38,
         OP_RELEASE_LOCKOWNER = 39,
+
+        /* nfs41 */
+        OP_BACKCHANNEL_CTL = 40,
+        OP_BIND_CONN_TO_SESSION = 41,
+        OP_EXCHANGE_ID = 42,
+        OP_CREATE_SESSION = 43,
+        OP_DESTROY_SESSION = 44,
+        OP_FREE_STATEID = 45,
+        OP_GET_DIR_DELEGATION = 46,
+        OP_GETDEVICEINFO = 47,
+        OP_GETDEVICELIST = 48,
+        OP_LAYOUTCOMMIT = 49,
+        OP_LAYOUTGET = 50,
+        OP_LAYOUTRETURN = 51,
+        OP_SECINFO_NO_NAME = 52,
+        OP_SEQUENCE = 53,
+        OP_SET_SSV = 54,
+        OP_TEST_STATEID = 55,
+        OP_WANT_DELEGATION = 56,
+        OP_DESTROY_CLIENTID = 57,
+        OP_RECLAIM_COMPLETE = 58,
+
         OP_ILLEGAL = 10044,
 };
 
@@ -230,7 +292,48 @@ enum nfsstat4 {
         NFS4ERR_DEADLOCK = 10045,
         NFS4ERR_FILE_OPEN = 10046,
         NFS4ERR_ADMIN_REVOKED = 10047,
-        NFS4ERR_CB_PATH_DOWN = 10048
+        NFS4ERR_CB_PATH_DOWN = 10048,
+
+        /* nfs41 */
+        NFS4ERR_BADIOMODE       = 10049,
+        NFS4ERR_BADLAYOUT       = 10050,
+        NFS4ERR_BAD_SESSION_DIGEST = 10051,
+        NFS4ERR_BADSESSION      = 10052,
+        NFS4ERR_BADSLOT         = 10053,
+        NFS4ERR_COMPLETE_ALREADY = 10054,
+        NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
+        NFS4ERR_DELEG_ALREADY_WANTED = 10056,
+        NFS4ERR_BACK_CHAN_BUSY  = 10057,        /* backchan reqs outstanding */
+        NFS4ERR_LAYOUTTRYLATER  = 10058,
+        NFS4ERR_LAYOUTUNAVAILABLE = 10059,
+        NFS4ERR_NOMATCHING_LAYOUT = 10060,
+        NFS4ERR_RECALLCONFLICT  = 10061,
+        NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
+        NFS4ERR_SEQ_MISORDERED = 10063,         /* unexpected seq.id in req */
+        NFS4ERR_SEQUENCE_POS    = 10064,        /* [CB_]SEQ. op not 1st op */
+        NFS4ERR_REQ_TOO_BIG     = 10065,        /* request too big */
+        NFS4ERR_REP_TOO_BIG     = 10066,        /* reply too big */
+        NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,   /* rep. not all cached */
+        NFS4ERR_RETRY_UNCACHED_REP = 10068,     /* retry & rep. uncached */
+        NFS4ERR_UNSAFE_COMPOUND = 10069,        /* retry/recovery too hard */
+        NFS4ERR_TOO_MANY_OPS    = 10070,        /* too many ops in [CB_]COMP */
+        NFS4ERR_OP_NOT_IN_SESSION = 10071,      /* op needs [CB_]SEQ. op */
+        NFS4ERR_HASH_ALG_UNSUPP = 10072,        /* hash alg. not supp. */
+                                                /* Error 10073 is unused. */
+        NFS4ERR_CLIENTID_BUSY   = 10074,        /* clientid has state */
+        NFS4ERR_PNFS_IO_HOLE    = 10075,        /* IO to _SPARSE file hole */
+        NFS4ERR_SEQ_FALSE_RETRY = 10076,        /* retry not origional */
+        NFS4ERR_BAD_HIGH_SLOT   = 10077,        /* sequence arg bad */
+        NFS4ERR_DEADSESSION     = 10078,        /* persistent session dead */
+        NFS4ERR_ENCR_ALG_UNSUPP = 10079,        /* SSV alg mismatch */
+        NFS4ERR_PNFS_NO_LAYOUT  = 10080,        /* direct I/O with no layout */
+        NFS4ERR_NOT_ONLY_OP     = 10081,        /* bad compound */
+        NFS4ERR_WRONG_CRED      = 10082,        /* permissions:state change */
+        NFS4ERR_WRONG_TYPE      = 10083,        /* current operation mismatch */
+        NFS4ERR_DIRDELEG_UNAVAIL = 10084,       /* no directory delegation */
+        NFS4ERR_REJECT_DELEG    = 10085,        /* on callback */
+        NFS4ERR_RETURNCONFLICT  = 10086,        /* outstanding layoutreturn */
+        NFS4ERR_DELEG_REVOKED   = 10087,        /* deleg./layout revoked */
 };
 
 /*
@@ -391,6 +494,29 @@ enum {
         NFSPROC4_CLNT_GETACL,
         NFSPROC4_CLNT_SETACL,
         NFSPROC4_CLNT_FS_LOCATIONS,
+
+        /* nfs41 */
+        NFSPROC4_CLNT_EXCHANGE_ID,
+        NFSPROC4_CLNT_CREATE_SESSION,
+        NFSPROC4_CLNT_DESTROY_SESSION,
+        NFSPROC4_CLNT_SEQUENCE,
+        NFSPROC4_CLNT_GET_LEASE_TIME,
+};
+
+/* nfs41 types */
+struct nfs4_sessionid {
+        unsigned char data[NFS4_MAX_SESSIONID_LEN];
+};
+
+/* Create Session Flags */
+#define SESSION4_PERSIST         0x001
+#define SESSION4_BACK_CHAN       0x002
+#define SESSION4_RDMA            0x004
+
+enum state_protect_how4 {
+        SP4_NONE        = 0,
+        SP4_MACH_CRED   = 1,
+        SP4_SSV         = 2
 };
 
 #endif