| /* |
| * linux/include/linux/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 |
| |
| /* size of an XDR encoding unit in bytes, i.e. 32bit */ |
| #define XDR_UNIT (4) |
| |
| /* 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, |
| }; |
| |
| /* Maximum size (in bytes) of an rpc credential or verifier */ |
| #define RPC_MAX_AUTH_SIZE (400) |
| |
| 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 __be32 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) |
| |
| /* |
| * RPC call and reply header size as number of 32bit words (verifier |
| * size computed separately, see below) |
| */ |
| #define RPC_CALLHDRSIZE (6) |
| #define RPC_REPHDRSIZE (4) |
| |
| |
| /* |
| * Maximum RPC header size, including authentication, |
| * as number of 32bit words (see RFCs 1831, 1832). |
| * |
| * xid 1 xdr unit = 4 bytes |
| * mtype 1 |
| * rpc_version 1 |
| * program 1 |
| * prog_version 1 |
| * procedure 1 |
| * cred { |
| * flavor 1 |
| * length 1 |
| * body<RPC_MAX_AUTH_SIZE> 100 xdr units = 400 bytes |
| * } |
| * verf { |
| * flavor 1 |
| * length 1 |
| * body<RPC_MAX_AUTH_SIZE> 100 xdr units = 400 bytes |
| * } |
| * TOTAL 210 xdr units = 840 bytes |
| */ |
| #define RPC_MAX_HEADER_WITH_AUTH \ |
| (RPC_CALLHDRSIZE + 2*(2+RPC_MAX_AUTH_SIZE/4)) |
| |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _LINUX_SUNRPC_MSGPROT_H_ */ |