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1/*
2 * linux/include/net/sunrpc/msg_prot.h
3 *
4 * Copyright (C) 1996, Olaf Kirch <okir@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 */
15typedef u32 rpc_authflavor_t;
16
17enum 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
37enum rpc_msg_type {
38 RPC_CALL = 0,
39 RPC_REPLY = 1
40};
41
42enum rpc_reply_stat {
43 RPC_MSG_ACCEPTED = 0,
44 RPC_MSG_DENIED = 1
45};
46
47enum 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
56enum rpc_reject_stat {
57 RPC_MISMATCH = 0,
58 RPC_AUTH_ERROR = 1
59};
60
61enum 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
98typedef 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_ */