1 /* 2 * Copyright (c) 1989 Jan-Simon Pendry 3 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Jan-Simon Pendry at Imperial College, London. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)am_ops.c 8.1 (Berkeley) 6/6/93 35 * $Id: am_ops.c,v 1.7 2014/10/26 03:08:21 guenther Exp $ 36 */ 37 38 #include "am.h" 39 40 static am_ops *vops[] = { 41 #ifdef HAS_UFS 42 &ufs_ops, 43 #endif 44 #ifdef HAS_NFS 45 &nfs_ops, 46 #endif 47 #ifdef HAS_NFSX 48 &nfsx_ops, 49 #endif 50 #ifdef HAS_HOST 51 &host_ops, 52 #endif 53 #ifdef HAS_SFS 54 &sfs_ops, 55 #endif 56 #ifdef HAS_SFSX 57 &sfsx_ops, 58 #endif 59 #ifdef HAS_LOFS 60 &lofs_ops, 61 #endif 62 #ifdef HAS_PFS 63 &pfs_ops, 64 #endif 65 #ifdef HAS_UNION_FS 66 &union_ops, 67 #endif 68 &afs_ops, /* These four should be last ... */ 69 &dfs_ops, /* ... */ 70 &toplvl_ops, /* ... */ 71 &efs_ops, /* ... in the order afs; dfs; toplvl; efs */ 72 0 73 }; 74 75 void 76 ops_showfstypes(FILE *fp) 77 { 78 struct am_ops **ap; 79 int l = 0; 80 81 for (ap = vops; *ap; ap++) { 82 fputs((*ap)->fs_type, fp); 83 if (ap[1]) fputs(", ", fp); 84 l += strlen((*ap)->fs_type) + 2; 85 if (l > 60) { l = 0; fputs("\n ", fp); } 86 } 87 } 88 89 #ifdef SUNOS4_COMPAT 90 #ifdef nomore 91 /* 92 * Crack a SunOS4-style host:fs:sub-link line 93 * Construct an amd-style line and call the 94 * normal amd matcher. 95 */ 96 am_ops * 97 sunos4_match(am_opts *fo, char *key, char *g_key, char *path, 98 char *keym, char *map) 99 { 100 char *host = key; 101 char *fs = strchr(host, ':'); 102 char *sublink = fs ? strchr(fs+1, ':') : 0; 103 char keybuf[MAXPATHLEN]; 104 105 snprintf(keybuf, sizeof(keybuf), 106 "type:=nfs;rhost:=%s;rfs:=%s;sublink:=%s;opts:=%s", host, 107 fs ? fs+1 : "", 108 sublink ? sublink+1 : "", 109 g_key); 110 return ops_match(fo, keybuf, "", path, keym, map); 111 } 112 #endif 113 #endif /* SUNOS4_COMPAT */ 114 115 am_ops * 116 ops_match(am_opts *fo, char *key, char *g_key, char *path, char *keym, 117 char *map) 118 { 119 am_ops **vp; 120 am_ops *rop = 0; 121 122 /* 123 * First crack the global opts and the local opts 124 */ 125 if (!eval_fs_opts(fo, key, g_key, path, keym, map)) { 126 rop = &efs_ops; 127 } else if (fo->opt_type == 0) { 128 plog(XLOG_USER, "No fs type specified (key = \"%s\", map = \"%s\")", keym, map); 129 rop = &efs_ops; 130 } else { 131 /* 132 * Next find the correct filesystem type 133 */ 134 for (vp = vops; (rop = *vp); vp++) 135 if (strcmp(rop->fs_type, fo->opt_type) == 0) 136 break; 137 138 if (!rop) { 139 plog(XLOG_USER, "fs type \"%s\" not recognised", fo->opt_type); 140 rop = &efs_ops; 141 } 142 } 143 144 /* 145 * Make sure we have a default mount option. 146 * Otherwise skip past any leading '-'. 147 */ 148 if (fo->opt_opts == 0) 149 fo->opt_opts = "rw,defaults"; 150 else if (*fo->opt_opts == '-') 151 fo->opt_opts++; 152 153 /* 154 * Check the filesystem is happy 155 */ 156 if (fo->fs_mtab) 157 free(fo->fs_mtab); 158 159 if ((fo->fs_mtab = (*rop->fs_match)(fo))) 160 return rop; 161 162 /* 163 * Return error file system 164 */ 165 fo->fs_mtab = (*efs_ops.fs_match)(fo); 166 return &efs_ops; 167 } 168