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 * %sccs.include.redist.c% 11 * 12 * @(#)fsi_gram.y 8.1 (Berkeley) 06/06/93 13 * 14 * $Id: fsi_gram.y,v 5.2.2.1 1992/02/09 15:09:35 jsp beta $ 15 * 16 */ 17 18 %{ 19 #include "../fsinfo/fsinfo.h" 20 #include <stdio.h> 21 22 extern qelem *list_of_hosts, *list_of_automounts; 23 %} 24 25 %union { 26 auto_tree *a; 27 disk_fs *d; 28 ether_if *e; 29 host *h; 30 qelem *q; 31 char *s; 32 mount *m; 33 fsmount *f; 34 } 35 36 %token tARCH 37 %token tAS 38 %token tAUTOMOUNT 39 %token tCLUSTER 40 %token tCONFIG 41 %token tDUMPSET 42 %token tEQ 43 %token tEXPORTFS 44 %token tFREQ 45 %token tFROM 46 %token tFS 47 %token tFSTYPE 48 %token tHWADDR 49 %token tINADDR 50 %token tHOST 51 %token tLOCALHOST 52 %token tLOG 53 %token tMOUNT 54 %token tNETMASK 55 %token tNETIF 56 %token tVOLNAME 57 %token tOPTS 58 %token tOS 59 %token tPASSNO 60 %token tSEL 61 %token <s> tSTR 62 63 %start list_of_hosts 64 65 %type <a> automount 66 %type <q> automount_tree 67 %type <e> ether_attr 68 %type <m> dir_tree_info 69 %type <d> filesystem fs_info_list 70 %type <h> host host_attr host_attr_list 71 %type <q> list_of_hosts list_of_filesystems list_of_mounts dir_tree 72 %type <f> localinfo_list 73 %type <s> opt_auto_opts 74 75 %% 76 77 list_of_hosts : 78 /* empty */ 79 { $$ = new_que(); } 80 81 | list_of_hosts host 82 { if ($2) ins_que((qelem *) $2, list_of_hosts->q_back); 83 $$ = $1; } 84 85 | list_of_hosts automount 86 { if ($2) ins_que((qelem *) $2, list_of_automounts->q_back); 87 $$ = $1; } 88 ; 89 90 /* 91 * A new host: 92 * 93 * host foo.domain 94 */ 95 host : 96 tHOST host_attr list_of_filesystems list_of_mounts 97 { $$ = $2; $$->h_disk_fs = $3; $$->h_mount = $4; } 98 99 | error tHOST host_attr list_of_filesystems list_of_mounts 100 { $$ = $3; $$->h_disk_fs = $4; $$->h_mount = $5; } 101 102 ; 103 104 host_attr : 105 tSTR 106 { $$ = new_host(); set_host($$, HF_HOST, $1); } 107 108 | '{' host_attr_list '}' tSTR 109 { $$ = $2; set_host($$, HF_HOST, $4); } 110 111 ; 112 113 host_attr_list : 114 /* empty */ 115 { $$ = new_host(); } 116 117 | host_attr_list tNETIF tSTR '{' ether_attr '}' 118 { if ($5) { 119 $5->e_if = $3; 120 $$ = $1; set_host($$, HF_ETHER, $5); } 121 } 122 123 | host_attr_list tCONFIG tSTR 124 { $$ = $1; set_host($$, HF_CONFIG, $3); } 125 126 | host_attr_list tARCH '=' tSTR 127 { $$ = $1; set_host($$, HF_ARCH, $4); } 128 129 | host_attr_list tOS '=' tSTR 130 { $$ = $1; set_host($$, HF_OS, $4); } 131 132 | host_attr_list tCLUSTER '=' tSTR 133 { $$ = $1; set_host($$, HF_CLUSTER, $4); } 134 135 | host_attr_list error '=' tSTR 136 { yyerror("unknown host attribute"); } 137 ; 138 139 ether_attr : 140 /* empty */ 141 { $$ = new_ether_if(); } 142 143 | ether_attr tINADDR '=' tSTR 144 { $$ = $1; set_ether_if($$, EF_INADDR, $4); } 145 | ether_attr tNETMASK '=' tSTR 146 { $$ = $1; set_ether_if($$, EF_NETMASK, $4); } 147 | ether_attr tHWADDR '=' tSTR 148 { $$ = $1; set_ether_if($$, EF_HWADDR, $4); } 149 ; 150 151 /* 152 * A new automount tree: 153 * 154 * automount /mountpoint { ... } 155 */ 156 automount : 157 tAUTOMOUNT opt_auto_opts automount_tree 158 { if ($3) { 159 $$ = new_auto_tree($2, $3); 160 } else { 161 $$ = 0; 162 } 163 } 164 165 | tAUTOMOUNT error 166 { $$ = 0; } 167 ; 168 169 opt_auto_opts : 170 /* empty */ 171 { $$ = strdup(""); } 172 173 | tOPTS tSTR 174 { $$ = $2; } 175 ; 176 177 list_of_filesystems : 178 /* empty */ 179 { $$ = 0; } 180 181 | list_of_filesystems filesystem 182 { if ($2) { 183 if ($1) 184 $$ = $1; 185 else 186 $$ = new_que(); 187 ins_que(&$2->d_q, $$->q_back); 188 } else { 189 $$ = $1; 190 } 191 } 192 ; 193 194 /* 195 * A new filesystem: 196 * 197 * fs /dev/whatever { ... } 198 */ 199 filesystem : 200 tFS tSTR '{' fs_info_list '}' 201 { $4->d_dev = $2; $$ = $4; } 202 203 | tFS error '}' 204 { $$ = (disk_fs *) 0; } 205 ; 206 207 /* 208 * Per-filesystem information: 209 * 210 * fstype - the type of the filesystem (4.2, nfs, swap, export) 211 * opts - the mount options ("rw,grpid") 212 * passno - fsck pass number 213 * freq - dump frequency 214 * dumpset - tape set for filesystem dumps 215 * mount - where to mount this filesystem 216 * log - log device 217 */ 218 fs_info_list : 219 /* empty */ 220 { $$ = new_disk_fs(); } 221 222 | fs_info_list tFSTYPE '=' tSTR 223 { $$ = $1; set_disk_fs($$, DF_FSTYPE, $4); } 224 225 | fs_info_list tOPTS '=' tSTR 226 { $$ = $1; set_disk_fs($$, DF_OPTS, $4); } 227 228 | fs_info_list tPASSNO '=' tSTR 229 { $$ = $1; set_disk_fs($$, DF_PASSNO, $4); } 230 231 | fs_info_list tFREQ '=' tSTR 232 { $$ = $1; set_disk_fs($$, DF_FREQ, $4); } 233 234 | fs_info_list tMOUNT dir_tree 235 { $$ = $1; set_disk_fs($$, DF_MOUNT, (char *) $3); } 236 237 | fs_info_list tDUMPSET '=' tSTR 238 { $$ = $1; set_disk_fs($$, DF_DUMPSET, $4); } 239 240 | fs_info_list tLOG '=' tSTR 241 { $$ = $1; set_disk_fs($$, DF_LOG, $4); } 242 243 | fs_info_list error '=' tSTR 244 { yyerror("unknown filesystem attribute"); } 245 ; 246 247 /* 248 * An automount tree: 249 * 250 * name = "volname" name is a reference to volname 251 * name -> "string" name is a link to "string" 252 * name { ... } name is an automount tree 253 */ 254 automount_tree : 255 /* empty */ 256 { $$ = 0; } 257 258 | automount_tree tSTR '=' tSTR 259 { automount *a = new_automount($2); 260 a->a_volname = $4; 261 if ($1) 262 $$ = $1; 263 else 264 $$ = new_que(); 265 ins_que(&a->a_q, $$->q_back); 266 } 267 268 | automount_tree tSTR tEQ tSTR 269 { automount *a = new_automount($2); 270 a->a_symlink = $4; 271 if ($1) 272 $$ = $1; 273 else 274 $$ = new_que(); 275 ins_que(&a->a_q, $$->q_back); 276 } 277 278 | automount_tree tSTR '{' automount_tree '}' 279 { automount *a = new_automount($2); 280 a->a_mount = $4; 281 if ($1) 282 $$ = $1; 283 else 284 $$ = new_que(); 285 ins_que(&a->a_q, $$->q_back); 286 } 287 ; 288 289 dir_tree : 290 /* empty */ 291 { $$ = 0; } 292 293 | dir_tree tSTR '{' dir_tree_info dir_tree '}' 294 { $4->m_mount = $5; 295 $4->m_name = $2; 296 if ($2[0] != '/' && $2[1] && strchr($2+1, '/')) 297 yyerror("not allowed '/' in a directory name"); 298 if ($1) 299 $$ = $1; 300 else 301 $$ = new_que(); 302 ins_que(&$4->m_q, $$->q_back); 303 } 304 ; 305 306 dir_tree_info : 307 /* empty */ 308 { $$ = new_mount(); } 309 310 | dir_tree_info tEXPORTFS tSTR 311 { $$ = $1; set_mount($$, DM_EXPORTFS, $3); } 312 313 | dir_tree_info tVOLNAME tSTR 314 { $$ = $1; set_mount($$, DM_VOLNAME, $3); } 315 316 | dir_tree_info tSEL tSTR 317 { $$ = $1; set_mount($$, DM_SEL, $3); } 318 319 | dir_tree_info error '=' tSTR 320 { yyerror("unknown directory attribute"); } 321 ; 322 323 /* 324 * Additional mounts on a host 325 * 326 * mount "volname" ... 327 */ 328 list_of_mounts : 329 /* empty */ 330 { $$ = 0; } 331 332 | list_of_mounts tMOUNT tSTR localinfo_list 333 { set_fsmount($4, FM_VOLNAME, $3); 334 if ($1) 335 $$ = $1; 336 else 337 $$ = new_que(); 338 ins_que(&$4->f_q, $$->q_back); 339 } 340 ; 341 342 /* 343 * Mount info: 344 * 345 * from "hostname" - obtain the object from the named host 346 * as "string" - where to mount, if different from the volname 347 * opts "string" - mount options 348 * fstype "type" - type of filesystem mount, if not nfs 349 */ 350 localinfo_list : 351 /* empty */ 352 { $$ = new_fsmount(); } 353 354 | localinfo_list tAS tSTR 355 { $$ = $1; set_fsmount($$, FM_LOCALNAME, $3); } 356 357 | localinfo_list tFROM tSTR 358 { $$ = $1; set_fsmount($$, FM_FROM, $3); } 359 360 | localinfo_list tFSTYPE tSTR 361 { $$ = $1; set_fsmount($$, FM_FSTYPE, $3); } 362 363 | localinfo_list tOPTS tSTR 364 { $$ = $1; set_fsmount($$, FM_OPTS, $3); } 365 366 | localinfo_list error '=' tSTR 367 { yyerror("unknown mount attribute"); } 368 ; 369