fsi_gram.y revision 174295 
1/*
2 * Copyright (c) 1997-2006 Erez Zadok
3 * Copyright (c) 1989 Jan-Simon Pendry
4 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1989 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgment:
21 *      This product includes software developed by the University of
22 *      California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *
40 * File: am-utils/fsinfo/fsi_gram.y
41 *
42 */
43
44%{
45#ifdef HAVE_CONFIG_H
46# include <config.h>
47#endif /* HAVE_CONFIG_H */
48#include <am_defs.h>
49#include <fsi_data.h>
50#include <fsinfo.h>
51
52extern qelem *list_of_hosts, *list_of_automounts;
53%}
54
55%union {
56	auto_tree *a;
57	disk_fs *d;
58	ether_if *e;
59	host *h;
60	qelem *q;
61	char *s;
62	fsi_mount *m;
63	fsmount *f;
64}
65
66%token	tARCH
67%token	tAS
68%token	tAUTOMOUNT
69%token	tCLUSTER
70%token	tCONFIG
71%token	tDUMPSET
72%token	tEQ
73%token  tNFSEQ
74%token	tEXPORTFS
75%token	tFREQ
76%token	tFROM
77%token	tFS
78%token	tFSTYPE
79%token	tHWADDR
80%token	tINADDR
81%token	tHOST
82%token	tLOCALHOST
83%token	tLOG
84%token	tMOUNT
85%token	tNETMASK
86%token	tNETIF
87%token	tVOLNAME
88%token	tOPTS
89%token	tOS
90%token	tPASSNO
91%token        tDIRECT
92%token	tSEL
93%token	<s> tSTR
94
95%start list_of_hosts
96
97%type <a> automount
98%type <q> automount_tree
99%type <e> ether_attr
100%type <m> dir_tree_info
101%type <d> filesystem fs_info_list
102%type <h> host host_attr host_attr_list
103%type <q> list_of_hosts list_of_filesystems list_of_mounts dir_tree
104%type <f> localinfo_list
105%type <s> opt_auto_opts
106
107%%
108
109list_of_hosts :
110	  /* empty */
111	  { $$ = new_que(); }
112
113	| list_of_hosts host
114	  { if ($2) ins_que((qelem *) $2, list_of_hosts->q_back);
115	    $$ = $1; }
116
117	| list_of_hosts automount
118	  { if ($2) ins_que((qelem *) $2, list_of_automounts->q_back);
119	    $$ = $1; }
120	;
121
122/*
123 * A new host:
124 *
125 * host foo.domain
126 */
127host :
128	  tHOST host_attr list_of_filesystems list_of_mounts
129	  { $$ = $2; $$->h_disk_fs = $3; $$->h_mount = $4; }
130
131	| error tHOST host_attr list_of_filesystems list_of_mounts
132	  { $$ = $3; $$->h_disk_fs = $4; $$->h_mount = $5; }
133
134	;
135
136host_attr :
137	  tSTR
138	  { $$ = new_host(); set_host($$, HF_HOST, $1); }
139
140	| '{' host_attr_list '}' tSTR
141	  { $$ = $2; set_host($$, HF_HOST, $4); }
142
143	;
144
145host_attr_list :
146	  /* empty */
147	  { $$ = new_host(); }
148
149	| host_attr_list tNETIF tSTR '{' ether_attr '}'
150	  { if ($5) {
151		$5->e_if = $3;
152		$$ = $1; set_host($$, HF_ETHER, (char *) $5); }
153	  }
154
155	| host_attr_list tCONFIG tSTR
156	  { $$ = $1; set_host($$, HF_CONFIG, $3); }
157
158	| host_attr_list tARCH '=' tSTR
159	  { $$ = $1; set_host($$, HF_ARCH, $4); }
160
161	| host_attr_list tOS '=' tSTR
162	  { $$ = $1; set_host($$, HF_OS, $4); }
163
164	| host_attr_list tCLUSTER '=' tSTR
165	  { $$ = $1; set_host($$, HF_CLUSTER, $4); }
166
167	| host_attr_list error '=' tSTR
168	  { yyerror("unknown host attribute"); }
169	;
170
171ether_attr :
172	  /* empty */
173	  { $$ = new_ether_if(); }
174
175	| ether_attr tINADDR '=' tSTR
176	  { $$ = $1; set_ether_if($$, EF_INADDR, $4); }
177	| ether_attr tNETMASK '=' tSTR
178	  { $$ = $1; set_ether_if($$, EF_NETMASK, $4); }
179	| ether_attr tHWADDR '=' tSTR
180	  { $$ = $1; set_ether_if($$, EF_HWADDR, $4); }
181	;
182
183/*
184 * A new automount tree:
185 *
186 * automount /mountpoint { ... }
187 */
188automount :
189	  tAUTOMOUNT opt_auto_opts automount_tree
190	  { if ($3) {
191		$$ = new_auto_tree($2, $3);
192	    } else {
193		$$ = 0;
194	    }
195	  }
196
197	| tAUTOMOUNT error
198	  { $$ = 0; }
199	;
200
201opt_auto_opts :
202	  /* empty */
203	  { $$ = strdup(""); }
204
205	| tOPTS tSTR
206	  { $$ = $2; }
207	;
208
209list_of_filesystems :
210	  /* empty */
211	  { $$ = 0; }
212
213	| list_of_filesystems filesystem
214	  { if ($2) {
215		if ($1)
216			$$ = $1;
217		else
218			$$ = new_que();
219		ins_que(&$2->d_q, $$->q_back);
220	    } else {
221		$$ = $1;
222	    }
223	  }
224	;
225
226/*
227 * A new filesystem:
228 *
229 * fs /dev/whatever { ... }
230 */
231filesystem :
232	  tFS tSTR '{' fs_info_list '}'
233	  { $4->d_dev = $2; $$ = $4; }
234
235	| tFS error '}'
236	  { $$ = (disk_fs *) 0; }
237	;
238
239/*
240 * Per-filesystem information:
241 *
242 * fstype - the type of the filesystem (4.2, nfs, swap, export)
243 * opts - the mount options ("rw,grpid")
244 * passno - fsck pass number
245 * freq - dump frequency
246 * dumpset - tape set for filesystem dumps
247 * mount - where to mount this filesystem
248 * log - log device
249 */
250fs_info_list :
251	  /* empty */
252	  { $$ = new_disk_fs(); }
253
254	| fs_info_list tFSTYPE '=' tSTR
255	  { $$ = $1; set_disk_fs($$, DF_FSTYPE, $4); }
256
257	| fs_info_list tOPTS '=' tSTR
258	  { $$ = $1; set_disk_fs($$, DF_OPTS, $4); }
259
260	| fs_info_list tPASSNO '=' tSTR
261	  { $$ = $1; set_disk_fs($$, DF_PASSNO, $4); }
262
263	| fs_info_list tFREQ '=' tSTR
264	  { $$ = $1; set_disk_fs($$, DF_FREQ, $4); }
265
266	| fs_info_list tMOUNT dir_tree
267	  { $$ = $1; set_disk_fs($$, DF_MOUNT, (char *) $3); }
268
269	| fs_info_list tDUMPSET '=' tSTR
270	  { $$ = $1; set_disk_fs($$, DF_DUMPSET, $4); }
271
272	| fs_info_list tLOG '=' tSTR
273	  { $$ = $1; set_disk_fs($$, DF_LOG, $4); }
274
275	| fs_info_list error '=' tSTR
276	  { yyerror("unknown filesystem attribute"); }
277	;
278
279/*
280 * An automount tree:
281 *
282 * name = "volname"	name is a reference to volname
283 * name -> "string"	name is a link to "string"
284 * name nfsalias "string"  name is a link to "string", string parsed as NFS
285 *			   pathname.
286 * name { ... }		name is an automount tree
287 */
288automount_tree :
289	  /* empty */
290	  { $$ = 0; }
291
292	| automount_tree tSTR opt_auto_opts '=' tSTR
293	  { automount *a = new_automount($2);
294	    a->a_volname = $5;
295	    a->a_opts = $3;
296	    if ($1)
297		$$ = $1;
298	    else
299		$$ = new_que();
300	    ins_que(&a->a_q, $$->q_back);
301	  }
302          | automount_tree tSTR opt_auto_opts tNFSEQ tSTR
303            { automount *a = new_automount($2);
304            a->a_hardwiredfs = $5;
305            a->a_opts = $3;
306            if ($1)
307                $$ = $1;
308            else
309                $$ = new_que();
310            ins_que(&a->a_q, $$->q_back);
311          }
312
313	| automount_tree tSTR tEQ tSTR
314	  { automount *a = new_automount($2);
315	    a->a_symlink = $4;
316	    if ($1)
317		$$ = $1;
318	    else
319		$$ = new_que();
320	    ins_que(&a->a_q, $$->q_back);
321	  }
322
323	| automount_tree tSTR opt_auto_opts '{' automount_tree '}'
324	  { automount *a = new_automount($2);
325	    a->a_mount = $5;
326	    a->a_opts = $3;
327	    if ($1)
328		$$ = $1;
329	    else
330		$$ = new_que();
331	    ins_que(&a->a_q, $$->q_back);
332	  }
333	;
334
335dir_tree :
336	  /* empty */
337	  { $$ = 0; }
338
339	| dir_tree tSTR '{' dir_tree_info dir_tree '}'
340	  { $4->m_mount = $5;
341	    $4->m_name = $2;
342	    if ($2[0] != '/' && $2[1] && strchr($2+1, '/'))
343		yyerror("not allowed '/' in a directory name");
344	    if ($1)
345		$$ = $1;
346	    else
347		$$ = new_que();
348	    ins_que(&$4->m_q, $$->q_back);
349	  }
350	;
351
352dir_tree_info :
353	  /* empty */
354	  { $$ = new_mount(); }
355
356	| dir_tree_info tEXPORTFS tSTR
357	  { $$ = $1; set_mount($$, DM_EXPORTFS, $3); }
358
359	| dir_tree_info tVOLNAME tSTR
360	  { $$ = $1; set_mount($$, DM_VOLNAME, $3); }
361
362	| dir_tree_info tSEL tSTR
363	  { $$ = $1; set_mount($$, DM_SEL, $3); }
364
365	| dir_tree_info error '=' tSTR
366	  { yyerror("unknown directory attribute"); }
367	;
368
369/*
370 * Additional mounts on a host
371 *
372 * mount "volname" ...
373 */
374list_of_mounts :
375	  /* empty */
376	  { $$ = 0; }
377
378	| list_of_mounts tMOUNT tSTR localinfo_list
379	  { set_fsmount($4, FM_VOLNAME, $3);
380	    if ($1)
381		$$ = $1;
382	    else
383		$$ = new_que();
384	    ins_que(&$4->f_q, $$->q_back);
385	    }
386	;
387
388/*
389 * Mount info:
390 *
391 * from "hostname"	- obtain the object from the named host
392 * as "string"		- where to mount, if different from the volname
393 * opts "string"	- mount options
394 * fstype "type"	- type of filesystem mount, if not nfs
395 * direct             - mount entry, no need to create ad-hoc hosts file
396 */
397localinfo_list :
398	  /* empty */
399	  { $$ = new_fsmount(); }
400
401        | localinfo_list tDIRECT
402          { $$ = $1; set_fsmount($$, FM_DIRECT, ""); }
403
404	| localinfo_list tAS tSTR
405	  { $$ = $1; set_fsmount($$, FM_LOCALNAME, $3); }
406
407	| localinfo_list tFROM tSTR
408	  { $$ = $1; set_fsmount($$, FM_FROM, $3); }
409
410	| localinfo_list tFSTYPE tSTR
411	  { $$ = $1; set_fsmount($$, FM_FSTYPE, $3); }
412
413	| localinfo_list tOPTS tSTR
414	  { $$ = $1; set_fsmount($$, FM_OPTS, $3); }
415
416	| localinfo_list error '=' tSTR
417	  { yyerror("unknown mount attribute"); }
418	;
419