1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * (C) Masami Komiya <mkomiya@sonare.it> 2004 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef __NFS_H__ 8*4882a593Smuzhiyun #define __NFS_H__ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #define SUNRPC_PORT 111 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define PROG_PORTMAP 100000 13*4882a593Smuzhiyun #define PROG_NFS 100003 14*4882a593Smuzhiyun #define PROG_MOUNT 100005 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define MSG_CALL 0 17*4882a593Smuzhiyun #define MSG_REPLY 1 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define PORTMAP_GETPORT 3 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define MOUNT_ADDENTRY 1 22*4882a593Smuzhiyun #define MOUNT_UMOUNTALL 4 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define NFS_LOOKUP 4 25*4882a593Smuzhiyun #define NFS_READLINK 5 26*4882a593Smuzhiyun #define NFS_READ 6 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun #define NFS3PROC_LOOKUP 3 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define NFS_FHSIZE 32 31*4882a593Smuzhiyun #define NFS3_FHSIZE 64 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define NFSERR_PERM 1 34*4882a593Smuzhiyun #define NFSERR_NOENT 2 35*4882a593Smuzhiyun #define NFSERR_ACCES 13 36*4882a593Smuzhiyun #define NFSERR_ISDIR 21 37*4882a593Smuzhiyun #define NFSERR_INVAL 22 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* 40*4882a593Smuzhiyun * Block size used for NFS read accesses. A RPC reply packet (including all 41*4882a593Smuzhiyun * headers) must fit within a single Ethernet frame to avoid fragmentation. 42*4882a593Smuzhiyun * However, if CONFIG_IP_DEFRAG is set, a bigger value could be used. In any 43*4882a593Smuzhiyun * case, most NFS servers are optimized for a power of 2. 44*4882a593Smuzhiyun */ 45*4882a593Smuzhiyun #define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun /* Values for Accept State flag on RPC answers (See: rfc1831) */ 48*4882a593Smuzhiyun enum rpc_accept_stat { 49*4882a593Smuzhiyun NFS_RPC_SUCCESS = 0, /* RPC executed successfully */ 50*4882a593Smuzhiyun NFS_RPC_PROG_UNAVAIL = 1, /* remote hasn't exported program */ 51*4882a593Smuzhiyun NFS_RPC_PROG_MISMATCH = 2, /* remote can't support version # */ 52*4882a593Smuzhiyun NFS_RPC_PROC_UNAVAIL = 3, /* program can't support procedure */ 53*4882a593Smuzhiyun NFS_RPC_GARBAGE_ARGS = 4, /* procedure can't decode params */ 54*4882a593Smuzhiyun NFS_RPC_SYSTEM_ERR = 5 /* errors like memory allocation failure */ 55*4882a593Smuzhiyun }; 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun struct rpc_t { 58*4882a593Smuzhiyun union { 59*4882a593Smuzhiyun uint8_t data[2048]; 60*4882a593Smuzhiyun struct { 61*4882a593Smuzhiyun uint32_t id; 62*4882a593Smuzhiyun uint32_t type; 63*4882a593Smuzhiyun uint32_t rpcvers; 64*4882a593Smuzhiyun uint32_t prog; 65*4882a593Smuzhiyun uint32_t vers; 66*4882a593Smuzhiyun uint32_t proc; 67*4882a593Smuzhiyun uint32_t data[1]; 68*4882a593Smuzhiyun } call; 69*4882a593Smuzhiyun struct { 70*4882a593Smuzhiyun uint32_t id; 71*4882a593Smuzhiyun uint32_t type; 72*4882a593Smuzhiyun uint32_t rstatus; 73*4882a593Smuzhiyun uint32_t verifier; 74*4882a593Smuzhiyun uint32_t v2; 75*4882a593Smuzhiyun uint32_t astatus; 76*4882a593Smuzhiyun uint32_t data[NFS_READ_SIZE]; 77*4882a593Smuzhiyun } reply; 78*4882a593Smuzhiyun } u; 79*4882a593Smuzhiyun } __attribute__((packed)); 80*4882a593Smuzhiyun void nfs_start(void); /* Begin NFS */ 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun /**********************************************************************/ 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun #endif /* __NFS_H__ */ 86