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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /*
      3  * NFSv3 protocol definitions
      4  */
      5 #ifndef _UAPI_LINUX_NFS3_H
      6 #define _UAPI_LINUX_NFS3_H
      7 
      8 #define NFS3_PORT		2049
      9 #define NFS3_MAXDATA		32768
     10 #define NFS3_MAXPATHLEN		PATH_MAX
     11 #define NFS3_MAXNAMLEN		NAME_MAX
     12 #define NFS3_MAXGROUPS		16
     13 #define NFS3_FHSIZE		64
     14 #define NFS3_COOKIESIZE		4
     15 #define NFS3_CREATEVERFSIZE	8
     16 #define NFS3_COOKIEVERFSIZE	8
     17 #define NFS3_WRITEVERFSIZE	8
     18 #define NFS3_FIFO_DEV		(-1)
     19 #define NFS3MODE_FMT		0170000
     20 #define NFS3MODE_DIR		0040000
     21 #define NFS3MODE_CHR		0020000
     22 #define NFS3MODE_BLK		0060000
     23 #define NFS3MODE_REG		0100000
     24 #define NFS3MODE_LNK		0120000
     25 #define NFS3MODE_SOCK		0140000
     26 #define NFS3MODE_FIFO		0010000
     27 
     28 /* Flags for access() call */
     29 #define NFS3_ACCESS_READ	0x0001
     30 #define NFS3_ACCESS_LOOKUP	0x0002
     31 #define NFS3_ACCESS_MODIFY	0x0004
     32 #define NFS3_ACCESS_EXTEND	0x0008
     33 #define NFS3_ACCESS_DELETE	0x0010
     34 #define NFS3_ACCESS_EXECUTE	0x0020
     35 #define NFS3_ACCESS_FULL	0x003f
     36 
     37 /* Flags for create mode */
     38 enum nfs3_createmode {
     39 	NFS3_CREATE_UNCHECKED = 0,
     40 	NFS3_CREATE_GUARDED = 1,
     41 	NFS3_CREATE_EXCLUSIVE = 2
     42 };
     43 
     44 /* NFSv3 file system properties */
     45 #define NFS3_FSF_LINK		0x0001
     46 #define NFS3_FSF_SYMLINK	0x0002
     47 #define NFS3_FSF_HOMOGENEOUS	0x0008
     48 #define NFS3_FSF_CANSETTIME	0x0010
     49 /* Some shorthands. See fs/nfsd/nfs3proc.c */
     50 #define NFS3_FSF_DEFAULT	0x001B
     51 #define NFS3_FSF_BILLYBOY	0x0018
     52 #define NFS3_FSF_READONLY	0x0008
     53 
     54 enum nfs3_ftype {
     55 	NF3NON  = 0,
     56 	NF3REG  = 1,
     57 	NF3DIR  = 2,
     58 	NF3BLK  = 3,
     59 	NF3CHR  = 4,
     60 	NF3LNK  = 5,
     61 	NF3SOCK = 6,
     62 	NF3FIFO = 7,	/* changed from NFSv2 (was 8) */
     63 	NF3BAD  = 8
     64 };
     65 
     66 struct nfs3_fh {
     67 	unsigned short size;
     68 	unsigned char  data[NFS3_FHSIZE];
     69 };
     70 
     71 #define NFS3_VERSION		3
     72 #define NFS3PROC_NULL		0
     73 #define NFS3PROC_GETATTR	1
     74 #define NFS3PROC_SETATTR	2
     75 #define NFS3PROC_LOOKUP		3
     76 #define NFS3PROC_ACCESS		4
     77 #define NFS3PROC_READLINK	5
     78 #define NFS3PROC_READ		6
     79 #define NFS3PROC_WRITE		7
     80 #define NFS3PROC_CREATE		8
     81 #define NFS3PROC_MKDIR		9
     82 #define NFS3PROC_SYMLINK	10
     83 #define NFS3PROC_MKNOD		11
     84 #define NFS3PROC_REMOVE		12
     85 #define NFS3PROC_RMDIR		13
     86 #define NFS3PROC_RENAME		14
     87 #define NFS3PROC_LINK		15
     88 #define NFS3PROC_READDIR	16
     89 #define NFS3PROC_READDIRPLUS	17
     90 #define NFS3PROC_FSSTAT		18
     91 #define NFS3PROC_FSINFO		19
     92 #define NFS3PROC_PATHCONF	20
     93 #define NFS3PROC_COMMIT		21
     94 
     95 #define NFS_MNT3_VERSION	3
     96 
     97 
     98 #endif /* _UAPI_LINUX_NFS3_H */
     99