808012fbb2
Add a generic mechanism for skipping over transport-specific headers when constructing an RPC request. This removes another "xprt->stream" dependency. Test-plan: Write-intensive workload on a single mount point (try both UDP and TCP). Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
|
|
* linux/include/net/sunrpc/msg_prot.h
|
|
*
|
|
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef _LINUX_SUNRPC_MSGPROT_H_
|
|
#define _LINUX_SUNRPC_MSGPROT_H_
|
|
|
|
#ifdef __KERNEL__ /* user programs should get these from the rpc header files */
|
|
|
|
#define RPC_VERSION 2
|
|
|
|
/* spec defines authentication flavor as an unsigned 32 bit integer */
|
|
typedef u32 rpc_authflavor_t;
|
|
|
|
enum rpc_auth_flavors {
|
|
RPC_AUTH_NULL = 0,
|
|
RPC_AUTH_UNIX = 1,
|
|
RPC_AUTH_SHORT = 2,
|
|
RPC_AUTH_DES = 3,
|
|
RPC_AUTH_KRB = 4,
|
|
RPC_AUTH_GSS = 6,
|
|
RPC_AUTH_MAXFLAVOR = 8,
|
|
/* pseudoflavors: */
|
|
RPC_AUTH_GSS_KRB5 = 390003,
|
|
RPC_AUTH_GSS_KRB5I = 390004,
|
|
RPC_AUTH_GSS_KRB5P = 390005,
|
|
RPC_AUTH_GSS_LKEY = 390006,
|
|
RPC_AUTH_GSS_LKEYI = 390007,
|
|
RPC_AUTH_GSS_LKEYP = 390008,
|
|
RPC_AUTH_GSS_SPKM = 390009,
|
|
RPC_AUTH_GSS_SPKMI = 390010,
|
|
RPC_AUTH_GSS_SPKMP = 390011,
|
|
};
|
|
|
|
enum rpc_msg_type {
|
|
RPC_CALL = 0,
|
|
RPC_REPLY = 1
|
|
};
|
|
|
|
enum rpc_reply_stat {
|
|
RPC_MSG_ACCEPTED = 0,
|
|
RPC_MSG_DENIED = 1
|
|
};
|
|
|
|
enum rpc_accept_stat {
|
|
RPC_SUCCESS = 0,
|
|
RPC_PROG_UNAVAIL = 1,
|
|
RPC_PROG_MISMATCH = 2,
|
|
RPC_PROC_UNAVAIL = 3,
|
|
RPC_GARBAGE_ARGS = 4,
|
|
RPC_SYSTEM_ERR = 5
|
|
};
|
|
|
|
enum rpc_reject_stat {
|
|
RPC_MISMATCH = 0,
|
|
RPC_AUTH_ERROR = 1
|
|
};
|
|
|
|
enum rpc_auth_stat {
|
|
RPC_AUTH_OK = 0,
|
|
RPC_AUTH_BADCRED = 1,
|
|
RPC_AUTH_REJECTEDCRED = 2,
|
|
RPC_AUTH_BADVERF = 3,
|
|
RPC_AUTH_REJECTEDVERF = 4,
|
|
RPC_AUTH_TOOWEAK = 5,
|
|
/* RPCSEC_GSS errors */
|
|
RPCSEC_GSS_CREDPROBLEM = 13,
|
|
RPCSEC_GSS_CTXPROBLEM = 14
|
|
};
|
|
|
|
#define RPC_PMAP_PROGRAM 100000
|
|
#define RPC_PMAP_VERSION 2
|
|
#define RPC_PMAP_PORT 111
|
|
|
|
#define RPC_MAXNETNAMELEN 256
|
|
|
|
/*
|
|
* From RFC 1831:
|
|
*
|
|
* "A record is composed of one or more record fragments. A record
|
|
* fragment is a four-byte header followed by 0 to (2**31) - 1 bytes of
|
|
* fragment data. The bytes encode an unsigned binary number; as with
|
|
* XDR integers, the byte order is from highest to lowest. The number
|
|
* encodes two values -- a boolean which indicates whether the fragment
|
|
* is the last fragment of the record (bit value 1 implies the fragment
|
|
* is the last fragment) and a 31-bit unsigned binary value which is the
|
|
* length in bytes of the fragment's data. The boolean value is the
|
|
* highest-order bit of the header; the length is the 31 low-order bits.
|
|
* (Note that this record specification is NOT in XDR standard form!)"
|
|
*
|
|
* The Linux RPC client always sends its requests in a single record
|
|
* fragment, limiting the maximum payload size for stream transports to
|
|
* 2GB.
|
|
*/
|
|
|
|
typedef u32 rpc_fraghdr;
|
|
|
|
#define RPC_LAST_STREAM_FRAGMENT (1U << 31)
|
|
#define RPC_FRAGMENT_SIZE_MASK (~RPC_LAST_STREAM_FRAGMENT)
|
|
#define RPC_MAX_FRAGMENT_SIZE ((1U << 31) - 1)
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _LINUX_SUNRPC_MSGPROT_H_ */
|