/**************************************************************************** * fs/nfs/nfs_proto.h * * Copyright (C) 2012 Gregory Nutt. All rights reserved. * Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved. * Author: Jose Pablo Rojas Vargas * * Leveraged from OpenBSD: * * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rick Macklem at The University of Guelph. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ****************************************************************************/ #ifndef __FS_NFS_NFS_PROTO_H #define __FS_NFS_NFS_PROTO_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Constants as defined in the Sun NFS Version 2 and 3 specs. * "NFS: Network File System Protocol Specification" RFC1094 * and in the "NFS: Network File System Version 3 Protocol * Specification" */ #define NFS_PORT 2049 #define NFS_PROG 100003 #define NFS_VER2 2 #define NFS_VER3 3 #define NFS_VER4 4 #define NFS_V2MAXDATA 8192 #define NFS_MAXDGRAMDATA 32768 #define MAXBSIZE 64000 #define NFS_MAXDATA MAXBSIZE #define NFS_MAXPATHLEN 1024 #define NFS_MAXNAMLEN 255 #define NFS_MAXPKTHDR 404 #define NFS_MAXPACKET (NFS_MAXPKTHDR + NFS_MAXDATA) #define NFS_MINPACKET 20 #define NFS_FABLKSIZE 512 /* Size in bytes of a block wrt fa_blocks */ /* Stat numbers for rpc returns (version 2 and 3) */ #define NFS_OK 0 #define NFSERR_PERM 1 #define NFSERR_NOENT 2 #define NFSERR_IO 5 #define NFSERR_NXIO 6 #define NFSERR_ACCES 13 #define NFSERR_EXIST 17 #define NFSERR_XDEV 18 /* Version 3 only */ #define NFSERR_NODEV 19 #define NFSERR_NOTDIR 20 #define NFSERR_ISDIR 21 #define NFSERR_INVAL 22 /* Version 3 only */ #define NFSERR_FBIG 27 #define NFSERR_NOSPC 28 #define NFSERR_ROFS 30 #define NFSERR_MLINK 31 /* Version 3 only */ #define NFSERR_NAMETOL 63 #define NFSERR_NOTEMPTY 66 #define NFSERR_DQUOT 69 #define NFSERR_STALE 70 #define NFSERR_REMOTE 71 /* Version 3 only */ #define NFSERR_WFLUSH 99 /* Version 2 only */ #define NFSERR_BADHANDLE 10001 /* The rest Version 3 only */ #define NFSERR_NOT_SYNC 10002 #define NFSERR_BAD_COOKIE 10003 #define NFSERR_NOTSUPP 10004 #define NFSERR_TOOSMALL 10005 #define NFSERR_SERVERFAULT 10006 #define NFSERR_BADTYPE 10007 #define NFSERR_JUKEBOX 10008 #define NFSERR_TRYLATER NFSERR_JUKEBOX #define NFSERR_STALEWRITEVERF 30001 /* Fake return for nfs_commit() */ #define NFSERR_RETVOID 0x20000000 /* Return void, not error */ #define NFSERR_AUTHERR 0x40000000 /* Mark an authentication error */ #define NFSERR_RETERR 0x80000000 /* Mark an error return for V3 */ /* Sizes in bytes of various nfs rpc components */ #define NFSX_UNSIGNED 4 /* specific to NFS Version 2 */ #define NFSX_V2FH 32 #define NFSX_V2FATTR 68 #define NFSX_V2SATTR 32 #define NFSX_V2COOKIE 4 #define NFSX_V2STATFS 20 /* specific to NFS Version 3 */ #define NFSX_V3FH (sizeof (fhandle_t)) /* size this server uses */ #define NFSX_V3FHMAX 64 /* max. allowed by protocol */ #define NFSX_V3FATTR 84 #define NFSX_V3SATTR 60 /* max. all fields filled in */ #define NFSX_V3SRVSATTR (sizeof (struct nfsv3_sattr)) #define NFSX_V3POSTOPATTR (NFSX_V3FATTR + NFSX_UNSIGNED) #define NFSX_V3WCCDATA (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED) #define NFSX_V3COOKIEVERF 8 #define NFSX_V3WRITEVERF 8 #define NFSX_V3CREATEVERF 8 #define NFSX_V3STATFS 52 #define NFSX_V3FSINFO 48 #define NFSX_V3PATHCONF 24 /* Variants for both versions */ #define NFSX_FH(v3) ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \ NFSX_V2FH) #define NFSX_SRVFH(v3) ((v3) ? NFSX_V3FH : NFSX_V2FH) #define NFSX_FATTR(v3) ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR) #define NFSX_PREOPATTR(v3) ((v3) ? (7 * NFSX_UNSIGNED) : 0) #define NFSX_POSTOPATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0) #define NFSX_POSTOPORFATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \ NFSX_V2FATTR) #define NFSX_WCCDATA(v3) ((v3) ? NFSX_V3WCCDATA : 0) #define NFSX_WCCORFATTR(v3) ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR) #define NFSX_SATTR(v3) ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR) #define NFSX_COOKIEVERF(v3) ((v3) ? NFSX_V3COOKIEVERF : 0) #define NFSX_WRITEVERF(v3) ((v3) ? NFSX_V3WRITEVERF : 0) #define NFSX_READDIR(v3) ((v3) ? (5 * NFSX_UNSIGNED) : \ (2 * NFSX_UNSIGNED)) #define NFSX_STATFS(v3) ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS) /* NFS RPC procedure numbers (before version mapping) */ #define NFSPROC_NULL 0 #define NFSPROC_GETATTR 1 #define NFSPROC_SETATTR 2 #define NFSPROC_LOOKUP 3 #define NFSPROC_ACCESS 4 #define NFSPROC_READLINK 5 #define NFSPROC_READ 6 #define NFSPROC_WRITE 7 #define NFSPROC_CREATE 8 #define NFSPROC_MKDIR 9 #define NFSPROC_SYMLINK 10 #define NFSPROC_MKNOD 11 #define NFSPROC_REMOVE 12 #define NFSPROC_RMDIR 13 #define NFSPROC_RENAME 14 #define NFSPROC_LINK 15 #define NFSPROC_READDIR 16 #define NFSPROC_READDIRPLUS 17 #define NFSPROC_FSSTAT 18 #define NFSPROC_FSINFO 19 #define NFSPROC_PATHCONF 20 #define NFSPROC_COMMIT 21 #define NFSPROC_NOOP 22 #define NFS_NPROCS 23 /* Actual Version 2 procedure numbers */ #define NFSV2PROC_NULL 0 #define NFSV2PROC_GETATTR 1 #define NFSV2PROC_SETATTR 2 #define NFSV2PROC_NOOP 3 #define NFSV2PROC_ROOT NFSV2PROC_NOOP/* Obsolete */ #define NFSV2PROC_LOOKUP 4 #define NFSV2PROC_READLINK 5 #define NFSV2PROC_READ 6 #define NFSV2PROC_WRITECACHE NFSV2PROC_NOOP/* Obsolete */ #define NFSV2PROC_WRITE 8 #define NFSV2PROC_CREATE 9 #define NFSV2PROC_REMOVE 10 #define NFSV2PROC_RENAME 11 #define NFSV2PROC_LINK 12 #define NFSV2PROC_SYMLINK 13 #define NFSV2PROC_MKDIR 14 #define NFSV2PROC_RMDIR 15 #define NFSV2PROC_READDIR 16 #define NFSV2PROC_STATFS 17 /* Constants used by the Version 3 protocol for various RPCs */ #define NFSV3SATTRTIME_DONTCHANGE 0 #define NFSV3SATTRTIME_TOSERVER 1 #define NFSV3SATTRTIME_TOCLIENT 2 #define NFSV3ACCESS_READ 0x01 #define NFSV3ACCESS_LOOKUP 0x02 #define NFSV3ACCESS_MODIFY 0x04 #define NFSV3ACCESS_EXTEND 0x08 #define NFSV3ACCESS_DELETE 0x10 #define NFSV3ACCESS_EXECUTE 0x20 #define NFSV3WRITE_UNSTABLE 0 #define NFSV3WRITE_DATASYNC 1 #define NFSV3WRITE_FILESYNC 2 #define NFSV3CREATE_UNCHECKED 0 #define NFSV3CREATE_GUARDED 1 #define NFSV3CREATE_EXCLUSIVE 2 #define NFSV3FSINFO_LINK 0x01 #define NFSV3FSINFO_SYMLINK 0x02 #define NFSV3FSINFO_HOMOGENEOUS 0x08 #define NFSV3FSINFO_CANSETTIME 0x10 /* NFS mount option flags */ #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ #define NFSMNT_WSIZE 0x00000002 /* set write size */ #define NFSMNT_RSIZE 0x00000004 /* set read size */ #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ /* 0x100 free, was NFSMNT_NQNFS */ #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ /* 0x400 free, was NFSMNT_KERB */ #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ /* 0x1000 free, was NFSMNT_LEASETERM */ #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ #define NFSMNT_ACREGMIN 0x00040000 #define NFSMNT_ACREGMAX 0x00080000 #define NFSMNT_ACDIRMIN 0x00100000 #define NFSMNT_ACDIRMAX 0x00200000 #define NFSMNT_NOLOCKD 0x00400000 /* Locks are local */ #define NFSMNT_NFSV4 0x00800000 /* Use NFS Version 4 protocol */ #define NFSMNT_HASWRITEVERF 0x01000000 /* NFSv4 Write verifier */ #define NFSMNT_GOTFSINFO 0x00000004 /* Got the V3 fsinfo */ #define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ #define NFSMNT_NOAC 0x00080000 /* Turn off attribute cache */ /* Conversion macros */ #define vtonfsv2_mode(t,m) \ txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \ MAKEIMODE((t), (m))) #define vtonfsv3_mode(m) txdr_unsigned((m) & 07777) #define nfstov_mode(a) (fxdr_unsigned(u_int16_t, (a))&07777) #define vtonfsv2_type(a) txdr_unsigned(nfsv2_type[((int32_t)(a))]) #define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))]) #define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(uint32_t,(a))&0x7] #define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(uint32_t,(a))&0x7] #define NFS_MAXFHSIZE 64 /* File identifier */ #define MAXFIDSZ 16 /**************************************************************************** * Public Types ****************************************************************************/ /* File types */ typedef enum { NFNON = 0, NFREG = 1, NFDIR = 2, NFBLK = 3, NFCHR = 4, NFLNK = 5, NFSOCK = 6, NFFIFO = 7 } nfstype; typedef struct { int32_t val[2]; } fsid_t; /* file system id type */ /* File identifier. * These are unique per filesystem on a single machine. */ struct fid { unsigned short fid_len; /* length of data in bytes */ unsigned short fid_reserved; /* force longword alignment */ char fid_data[MAXFIDSZ]; /* data (variable length) */ }; /* Generic file handle */ struct fhandle { fsid_t fh_fsid; /* File system id of mount point */ struct fid fh_fid; /* File sys specific id */ }; typedef struct fhandle fhandle_t; /* File Handle (32 bytes for version 2), variable up to 64 for version 3. */ union nfsfh { //fhandle_t fh_generic; uint8_t fh_bytes[NFSX_V2FH]; }; typedef union nfsfh nfsfh_t; struct nfsv2_time { uint32_t nfsv2_sec; uint32_t nfsv2_usec; }; typedef struct nfsv2_time nfstime2; struct nfsv3_time { uint32_t nfsv3_sec; uint32_t nfsv3_nsec; }; typedef struct nfsv3_time nfstime3; /* Quads are defined as arrays of 2 longs to ensure dense packing for the * protocol and to facilitate xdr conversion. */ struct nfs_uquad { uint32_t nfsuquad[2]; }; typedef struct nfs_uquad nfsuint64; /* NFS Version 3 special file number. */ struct nfsv3_spec { uint32_t specdata1; uint32_t specdata2; }; typedef struct nfsv3_spec nfsv3spec; /* File attributes and setable attributes. These structures cover both * NFS version 2 and the version 3 protocol. Note that the union is only * used so that one pointer can refer to both variants. These structures * go out on the wire and must be densely packed, so no quad data types * are used. (all fields are longs or u_longs or structures of same) * NB: You can't do sizeof(struct nfs_fattr), you must use the * NFSX_FATTR(v3) macro. */ struct nfs_fattr { uint32_t fa_type; uint32_t fa_mode; uint32_t fa_nlink; uint32_t fa_uid; uint32_t fa_gid; union { /*struct { uint32_t nfsv2fa_size; uint32_t nfsv2fa_blocksize; uint32_t nfsv2fa_rdev; uint32_t nfsv2fa_blocks; uint32_t nfsv2fa_fsid; uint32_t nfsv2fa_fileid; nfstime2 nfsv2fa_atime; nfstime2 nfsv2fa_mtime; nfstime2 nfsv2fa_ctime; } fa_nfsv2;*/ struct { nfsuint64 nfsv3fa_size; nfsuint64 nfsv3fa_used; nfsv3spec nfsv3fa_rdev; nfsuint64 nfsv3fa_fsid; nfsuint64 nfsv3fa_fileid; nfstime3 nfsv3fa_atime; nfstime3 nfsv3fa_mtime; nfstime3 nfsv3fa_ctime; } fa_nfsv3; } fa_un; }; /* And some ugly defines for accessing union components */ /*#define fa2_size fa_un.fa_nfsv2.nfsv2fa_size #define fa2_blocksize fa_un.fa_nfsv2.nfsv2fa_blocksize #define fa2_rdev fa_un.fa_nfsv2.nfsv2fa_rdev #define fa2_blocks fa_un.fa_nfsv2.nfsv2fa_blocks #define fa2_fsid fa_un.fa_nfsv2.nfsv2fa_fsid #define fa2_fileid fa_un.fa_nfsv2.nfsv2fa_fileid #define fa2_atime fa_un.fa_nfsv2.nfsv2fa_atime #define fa2_mtime fa_un.fa_nfsv2.nfsv2fa_mtime #define fa2_ctime fa_un.fa_nfsv2.nfsv2fa_ctime*/ #define fa3_size fa_un.fa_nfsv3.nfsv3fa_size #define fa3_used fa_un.fa_nfsv3.nfsv3fa_used #define fa3_rdev fa_un.fa_nfsv3.nfsv3fa_rdev #define fa3_fsid fa_un.fa_nfsv3.nfsv3fa_fsid #define fa3_fileid fa_un.fa_nfsv3.nfsv3fa_fileid #define fa3_atime fa_un.fa_nfsv3.nfsv3fa_atime #define fa3_mtime fa_un.fa_nfsv3.nfsv3fa_mtime #define fa3_ctime fa_un.fa_nfsv3.nfsv3fa_ctime struct nfsv2_sattr { uint32_t sa_mode; uint32_t sa_uid; uint32_t sa_gid; uint32_t sa_size; nfstime2 sa_atime; nfstime2 sa_mtime; }; /* NFS Version 3 sattr structure for the new node creation case. */ struct nfsv3_sattr { uint32_t sa_modetrue; uint32_t sa_mode; uint32_t sa_uidfalse; //uint32_t sa_uid; uint32_t sa_gidfalse; //uint32_t sa_gid; uint32_t sa_sizefalse; uint32_t sa_atimetype; //nfstime3 sa_atime; uint32_t sa_mtimetype; //nfstime3 sa_mtime; }; struct nfs_statfs { struct nfs_fattr obj_attributes; union { /*struct { uint32_t nfsv2sf_tsize; uint32_t nfsv2sf_bsize; uint32_t nfsv2sf_blocks; uint32_t nfsv2sf_bfree; uint32_t nfsv2sf_bavail; } sf_nfsv2;*/ struct { nfsuint64 nfsv3sf_tbytes; nfsuint64 nfsv3sf_fbytes; nfsuint64 nfsv3sf_abytes; nfsuint64 nfsv3sf_tfiles; nfsuint64 nfsv3sf_ffiles; nfsuint64 nfsv3sf_afiles; uint32_t nfsv3sf_invarsec; } sf_nfsv3; } sf_un; }; /*#define sf_tsize sf_un.sf_nfsv2.nfsv2sf_tsize #define sf_bsize sf_un.sf_nfsv2.nfsv2sf_bsize #define sf_blocks sf_un.sf_nfsv2.nfsv2sf_blocks #define sf_bfree sf_un.sf_nfsv2.nfsv2sf_bfree #define sf_bavail sf_un.sf_nfsv2.nfsv2sf_bavail*/ #define sf_tbytes sf_un.sf_nfsv3.nfsv3sf_tbytes #define sf_fbytes sf_un.sf_nfsv3.nfsv3sf_fbytes #define sf_abytes sf_un.sf_nfsv3.nfsv3sf_abytes #define sf_tfiles sf_un.sf_nfsv3.nfsv3sf_tfiles #define sf_ffiles sf_un.sf_nfsv3.nfsv3sf_ffiles #define sf_afiles sf_un.sf_nfsv3.nfsv3sf_afiles #define sf_invarsec sf_un.sf_nfsv3.nfsv3sf_invarsec struct post_attr { uint32_t obj_attributesfalse; struct nfs_fattr attributes; }; struct nfsv3_fsinfo { //struct post_attr obj_attributes; uint32_t obj_attributesfalse; uint32_t fs_rtmax; uint32_t fs_rtpref; uint32_t fs_rtmult; uint32_t fs_wtmax; uint32_t fs_wtpref; uint32_t fs_wtmult; uint32_t fs_dtpref; nfsuint64 fs_maxfilesize; nfstime3 fs_timedelta; uint32_t fs_properties; }; /* NFS procedures args */ struct wcc_attr { nfsuint64 size; nfstime3 mtime; nfstime3 ctime; }; struct wcc_data { struct wcc_attr before; struct nfs_fattr after; }; struct file_handle { uint32_t length; nfsfh_t handle; }; struct diropargs3 { struct file_handle dir; uint32_t length; char name[64]; }; struct CREATE3args { struct diropargs3 where; uint32_t create_mode; struct nfsv3_sattr how; }; struct CREATE3resok { struct file_handle fshandle; struct nfs_fattr attributes; struct wcc_data dir_wcc; }; struct READ3args { nfstype file; uint64_t offset; uint32_t count; }; struct READ3resok { struct nfs_fattr file_attributes; uint32_t count; bool eof; const char *data; }; struct WRITE3args { nfstype file; uint64_t offset; uint32_t count; uint32_t stable; const char *data; }; struct WRITE3resok { struct wcc_data file_wcc; uint32_t count; uint32_t committed; uint8_t verf[NFSX_V3WRITEVERF]; }; struct REMOVE3args { struct diropargs3 object; }; struct REMOVE3resok { struct wcc_data dir_wcc; }; struct RENAME3args { struct diropargs3 from; struct diropargs3 to; }; struct RENAME3resok { struct wcc_data fromdir_wcc; struct wcc_data todir_wcc; }; struct MKDIR3args { struct diropargs3 where; struct nfsv3_sattr attributes; }; struct MKDIR3resok { struct file_handle fshandle; uint32_t obj_attributesfalse; struct nfs_fattr obj_attributes; struct wcc_data dir_wcc; }; struct RMDIR3args { struct diropargs3 object; }; struct RMDIR3resok { struct wcc_data dir_wcc; }; struct READDIR3args { struct file_handle dir; nfsuint64 cookie; uint8_t cookieverf[NFSX_V3COOKIEVERF]; uint32_t count; }; /* The READDIR reply is variable length and consists of multiple entries, each * of form: * * EOF - OR - * * File ID (8 bytes) * Name length (4 bytes) * Name string (varaiable size but in multiples of 4 bytes) * Cookie (8 bytes) * next entry (4 bytes) */ struct READDIR3resok { struct nfs_fattr dir_attributes; uint8_t cookieverf[NFSX_V3COOKIEVERF]; uint32_t reply[1]; /* Variable length reply begins here */ }; struct FS3args { struct file_handle fsroot; }; #endif /* __FS_NFS_NFS_PROTO_H */