Home | History | Annotate | Download | only in sunrpc
      1 /*
      2  * linux/include/net/sunrpc/msg_prot.h
      3  *
      4  * Copyright (C) 1996, Olaf Kirch <okir (at) monad.swb.de>
      5  */
      6 
      7 #ifndef _LINUX_SUNRPC_MSGPROT_H_
      8 #define _LINUX_SUNRPC_MSGPROT_H_
      9 
     10 #ifdef __KERNEL__ /* user programs should get these from the rpc header files */
     11 
     12 #define RPC_VERSION 2
     13 
     14 /* spec defines authentication flavor as an unsigned 32 bit integer */
     15 typedef u32	rpc_authflavor_t;
     16 
     17 enum rpc_auth_flavors {
     18 	RPC_AUTH_NULL  = 0,
     19 	RPC_AUTH_UNIX  = 1,
     20 	RPC_AUTH_SHORT = 2,
     21 	RPC_AUTH_DES   = 3,
     22 	RPC_AUTH_KRB   = 4,
     23 	RPC_AUTH_GSS   = 6,
     24 	RPC_AUTH_MAXFLAVOR = 8,
     25 	/* pseudoflavors: */
     26 	RPC_AUTH_GSS_KRB5  = 390003,
     27 	RPC_AUTH_GSS_KRB5I = 390004,
     28 	RPC_AUTH_GSS_KRB5P = 390005,
     29 	RPC_AUTH_GSS_LKEY  = 390006,
     30 	RPC_AUTH_GSS_LKEYI = 390007,
     31 	RPC_AUTH_GSS_LKEYP = 390008,
     32 	RPC_AUTH_GSS_SPKM  = 390009,
     33 	RPC_AUTH_GSS_SPKMI = 390010,
     34 	RPC_AUTH_GSS_SPKMP = 390011,
     35 };
     36 
     37 enum rpc_msg_type {
     38 	RPC_CALL = 0,
     39 	RPC_REPLY = 1
     40 };
     41 
     42 enum rpc_reply_stat {
     43 	RPC_MSG_ACCEPTED = 0,
     44 	RPC_MSG_DENIED = 1
     45 };
     46 
     47 enum rpc_accept_stat {
     48 	RPC_SUCCESS = 0,
     49 	RPC_PROG_UNAVAIL = 1,
     50 	RPC_PROG_MISMATCH = 2,
     51 	RPC_PROC_UNAVAIL = 3,
     52 	RPC_GARBAGE_ARGS = 4,
     53 	RPC_SYSTEM_ERR = 5
     54 };
     55 
     56 enum rpc_reject_stat {
     57 	RPC_MISMATCH = 0,
     58 	RPC_AUTH_ERROR = 1
     59 };
     60 
     61 enum rpc_auth_stat {
     62 	RPC_AUTH_OK = 0,
     63 	RPC_AUTH_BADCRED = 1,
     64 	RPC_AUTH_REJECTEDCRED = 2,
     65 	RPC_AUTH_BADVERF = 3,
     66 	RPC_AUTH_REJECTEDVERF = 4,
     67 	RPC_AUTH_TOOWEAK = 5,
     68 	/* RPCSEC_GSS errors */
     69 	RPCSEC_GSS_CREDPROBLEM = 13,
     70 	RPCSEC_GSS_CTXPROBLEM = 14
     71 };
     72 
     73 #define RPC_PMAP_PROGRAM	100000
     74 #define RPC_PMAP_VERSION	2
     75 #define RPC_PMAP_PORT		111
     76 
     77 #define RPC_MAXNETNAMELEN	256
     78 
     79 /*
     80  * From RFC 1831:
     81  *
     82  * "A record is composed of one or more record fragments.  A record
     83  *  fragment is a four-byte header followed by 0 to (2**31) - 1 bytes of
     84  *  fragment data.  The bytes encode an unsigned binary number; as with
     85  *  XDR integers, the byte order is from highest to lowest.  The number
     86  *  encodes two values -- a boolean which indicates whether the fragment
     87  *  is the last fragment of the record (bit value 1 implies the fragment
     88  *  is the last fragment) and a 31-bit unsigned binary value which is the
     89  *  length in bytes of the fragment's data.  The boolean value is the
     90  *  highest-order bit of the header; the length is the 31 low-order bits.
     91  *  (Note that this record specification is NOT in XDR standard form!)"
     92  *
     93  * The Linux RPC client always sends its requests in a single record
     94  * fragment, limiting the maximum payload size for stream transports to
     95  * 2GB.
     96  */
     97 
     98 typedef u32	rpc_fraghdr;
     99 
    100 #define	RPC_LAST_STREAM_FRAGMENT	(1U << 31)
    101 #define	RPC_FRAGMENT_SIZE_MASK		(~RPC_LAST_STREAM_FRAGMENT)
    102 #define	RPC_MAX_FRAGMENT_SIZE		((1U << 31) - 1)
    103 
    104 #endif /* __KERNEL__ */
    105 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
    106