RFC 1813 NFS Version 3 Protocol June 1995 3.3.1 GETATTR: Get file attributes . . . . . . . . . . . . . . 32 3.3.2 SETATTR: Set file attributes . . . . . . . . . . . . . . 33 3.3.3 LOOKUP: Lookup filename . . . . . . . . . . . . . . . . 37 3.3.4 ACCESS: Check access permission . . . . . . . . . . . . 40 3.3.5 READLINK: Read from symbolic link . . . . . . . . . . . 44 3.3.6 READ: Read from file . . . . . . . . . . . . . . . . . . 46 3.3.7 WRITE: Write to file . . . . . . . . . . . . . . . . . . 49 3.3.8 CREATE: Create a file . . . . . . . . . . . . . . . . . 54 3.3.9 MKDIR: Create a directory . . . . . . . . . . . . . . . 58 3.3.10 SYMLINK: Create a symbolic link . . . . . . . . . . . . 61 3.3.11 MKNOD: Create a special device . . . . . . . . . . . . . 63 3.3.12 REMOVE: Remove a file . . . . . . . . . . . . . . . . . 67 3.3.13 RMDIR: Remove a directory . . . . . . . . . . . . . . . 69 3.3.14 RENAME: Rename a file or directory . . . . . . . . . . . 71 3.3.15 LINK: Create link to an object . . . . . . . . . . . . . 74 3.3.16 READDIR: Read From directory . . . . . . . . . . . . . . 76 3.3.17 READDIRPLUS: Extended read from directory . . . . . . . 80 3.3.18 FSSTAT: Get dynamic file system information . . . . . . 84 3.3.19 FSINFO: Get static file system information . . . . . . . 86 3.3.20 PATHCONF: Retrieve POSIX information . . . . . . . . . . 90 3.3.21 COMMIT: Commit cached data on a server to stable storage 92 4. Implementation issues . . . . . . . . . . . . . . . . . . 96 4.1 Multiple version support . . . . . . . . . . . . . . . . 96 4.2 Server/client relationship . . . . . . . . . . . . . . . 96 4.3 Path name interpretation . . . . . . . . . . . . . . . . 97 4.4 Permission issues . . . . . . . . . . . . . . . . . . . 98 4.5 Duplicate request cache . . . . . . . . . . . . . . . . 99 4.6 File name component handling . . . . . . . . . . . . . . 101 4.7 Synchronous modifying operations . . . . . . . . . . . . 101 4.8 Stable storage . . . . . . . . . . . . . . . . . . . . . 101 4.9 Lookups and name resolution . . . . . . . . . . . . . . 102 4.10 Adaptive retransmission . . . . . . . . . . . . . . . . 102 4.11 Caching policies . . . . . . . . . . . . . . . . . . . . 102 4.12 Stable versus unstable writes. . . . . . . . . . . . . . 103 4.13 32 bit clients/servers and 64 bit clients/servers. . . . 104 5. Appendix I: Mount protocol . . . . . . . . . . . . . . . . 106 5.1 RPC Information . . . . . . . . . . . . . . . . . . . . 106 5.1.1 Authentication . . . . . . . . . . . . . . . . . . . . 106 5.1.2 Constants . . . . . . . . . . . . . . . . . . . . . . 106 5.1.3 Transport address . . . . . . . . . . . . . . . . . . 106 5.1.4 Sizes . . . . . . . . . . . . . . . . . . . . . . . . 106 5.1.5 Basic Data Types . . . . . . . . . . . . . . . . . . . 106 5.2 Server Procedures . . . . . . . . . . . . . . . . . . . 107 5.2.0 NULL: Do nothing . . . . . . . . . . . . . . . . . . . 108 5.2.1 MNT: Add mount entry . . . . . . . . . . . . . . . . . 109 5.2.2 DUMP: Return mount entries . . . . . . . . . . . . . . 110 5.2.3 UMNT: Remove mount entry . . . . . . . . . . . . . . . 111 5.2.4 UMNTALL: Remove all mount entries . . . . . . . . . . 112 Callaghan, el al Informational