1 /* 2 * $Id: efs_ops.c,v 5.2.1.2 90/11/04 23:17:14 jsp Exp $ 3 * 4 * Copyright (c) 1989 Jan-Simon Pendry 5 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 6 * Copyright (c) 1989 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * Jan-Simon Pendry at Imperial College, London. 11 * 12 * %sccs.include.redist.c% 13 * 14 * @(#)efs_ops.c 5.2 (Berkeley) 03/17/91 15 */ 16 17 #include "am.h" 18 19 #ifdef HAS_EFS 20 21 /* 22 * Error file system. 23 * This is used as a last resort catchall if 24 * nothing else worked. EFS just returns lots 25 * of error codes, except for unmount which 26 * always works of course. 27 */ 28 29 /* 30 * EFS file system always matches 31 */ 32 static char *efs_match(fo) 33 am_opts *fo; 34 { 35 return strdup("(error-hook)"); 36 } 37 38 /*ARGSUSED*/ 39 static int efs_fmount(mf) 40 mntfs *mf; 41 { 42 return ENOENT; 43 } 44 45 /*ARGSUSED*/ 46 static int efs_fumount(mf) 47 mntfs *mf; 48 { 49 /* 50 * Always succeed 51 */ 52 53 return 0; 54 } 55 56 /* 57 * EFS interface to RPC lookup() routine. 58 * Should never get here in the automounter. 59 * If we do then just give an error. 60 */ 61 /*ARGSUSED*/ 62 am_node *efs_lookuppn(mp, fname, error_return, op) 63 am_node *mp; 64 char *fname; 65 int *error_return; 66 int op; 67 { 68 *error_return = ESTALE; 69 return 0; 70 } 71 72 /* 73 * EFS interface to RPC readdir() routine. 74 * Should never get here in the automounter. 75 * If we do then just give an error. 76 */ 77 /*ARGSUSED*/ 78 int efs_readdir(mp, cookie, dp, ep, count) 79 am_node *mp; 80 nfscookie cookie; 81 dirlist *dp; 82 entry *ep; 83 int count; 84 { 85 return ESTALE; 86 } 87 88 /* 89 * Ops structure 90 */ 91 am_ops efs_ops = { 92 "error", 93 efs_match, 94 0, /* efs_init */ 95 auto_fmount, 96 efs_fmount, 97 auto_fumount, 98 efs_fumount, 99 efs_lookuppn, 100 efs_readdir, 101 0, /* efs_readlink */ 102 0, /* efs_mounted */ 103 0, /* efs_umounted */ 104 find_afs_srvr, 105 FS_DISCARD 106 }; 107 108 #endif /* HAS_EFS */ 109