6 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation version 2 of the License.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* define this to enable parsing debugging */
25 /* #define DEBUG_PARSER */
39 int get_pair(char **orig_string
, char **left
, char **right
)
42 char *string
= *orig_string
;
47 /* eat any whitespace */
48 while (isspace(*string
))
51 /* split based on '=' */
52 temp
= strsep(&string
, "=");
57 /* take the right side and strip off the '"' */
58 while (isspace(*string
))
65 temp
= strsep(&string
, "\"");
66 if (!string
|| *temp
== '\0')
69 *orig_string
= string
;
74 static int get_value(const char *left
, char **orig_string
, char **ret_string
)
79 retval
= get_pair(orig_string
, &left_string
, ret_string
);
82 if (strcasecmp(left_string
, left
) != 0)
87 void dump_config_dev(struct config_device
*dev
)
91 dbg_parse("KERNEL name='%s'", dev
->name
);
94 dbg_parse("LABEL name='%s', bus='%s', sysfs_file='%s', sysfs_value='%s'",
95 dev
->name
, dev
->bus
, dev
->sysfs_file
, dev
->sysfs_value
);
98 dbg_parse("NUMBER name='%s', bus='%s', id='%s'",
99 dev
->name
, dev
->bus
, dev
->id
);
102 dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s'",
103 dev
->name
, dev
->bus
, dev
->place
);
106 dbg_parse("REPLACE name=%s, kernel_name=%s",
107 dev
->name
, dev
->kernel_name
);
110 dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s'",
111 dev
->name
, dev
->bus
, dev
->exec_program
, dev
->id
);
114 dbg_parse("unknown type of method");
118 void dump_config_dev_list(void)
120 struct list_head
*tmp
;
122 list_for_each(tmp
, &config_device_list
) {
123 struct config_device
*dev
= list_entry(tmp
, struct config_device
, node
);
124 dump_config_dev(dev
);
128 void dump_perm_dev(struct perm_device
*dev
)
130 dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
131 dev
->name
, dev
->owner
, dev
->group
, dev
->mode
);
134 void dump_perm_dev_list(void)
136 struct list_head
*tmp
;
138 list_for_each(tmp
, &perm_device_list
) {
139 struct perm_device
*dev
= list_entry(tmp
, struct perm_device
, node
);
145 int namedev_init_rules(void)
154 struct config_device dev
;
156 fd
= fopen(udev_rules_filename
, "r");
158 dbg("reading '%s' as rules file", udev_rules_filename
);
160 dbg("can't open '%s' as a rules file", udev_rules_filename
);
164 /* loop through the whole file */
168 temp
= fgets(line
, sizeof(line
), fd
);
173 dbg_parse("read '%s'", temp
);
175 /* eat the whitespace at the beginning of the line */
176 while (isspace(*temp
))
183 /* see if this is a comment */
184 if (*temp
== COMMENT_CHARACTER
)
187 memset(&dev
, 0x00, sizeof(struct config_device
));
190 temp2
= strsep(&temp
, ",");
191 if (strcasecmp(temp2
, TYPE_LABEL
) == 0) {
196 retval
= get_value("BUS", &temp
, &temp3
);
199 strfieldcpy(dev
.bus
, temp3
);
202 temp2
= strsep(&temp
, ",");
203 retval
= get_pair(&temp
, &temp2
, &temp3
);
206 strfieldcpy(dev
.sysfs_file
, temp2
);
207 strfieldcpy(dev
.sysfs_value
, temp3
);
209 /* NAME="new_name" */
210 temp2
= strsep(&temp
, ",");
211 retval
= get_value("NAME", &temp
, &temp3
);
214 strfieldcpy(dev
.name
, temp3
);
217 temp2
= strsep(&temp
, ",");
218 retval
= get_value("SYMLINK", &temp
, &temp3
);
220 strfieldcpy(dev
.symlink
, temp3
);
222 dbg_parse("LABEL name='%s', bus='%s', "
223 "sysfs_file='%s', sysfs_value='%s', symlink='%s'",
224 dev
.name
, dev
.bus
, dev
.sysfs_file
,
225 dev
.sysfs_value
, dev
.symlink
);
228 if (strcasecmp(temp2
, TYPE_NUMBER
) == 0) {
233 retval
= get_value("BUS", &temp
, &temp3
);
236 strfieldcpy(dev
.bus
, temp3
);
239 temp2
= strsep(&temp
, ",");
240 retval
= get_value("ID", &temp
, &temp3
);
243 strfieldcpy(dev
.id
, temp3
);
245 /* NAME="new_name" */
246 temp2
= strsep(&temp
, ",");
247 retval
= get_value("NAME", &temp
, &temp3
);
250 strfieldcpy(dev
.name
, temp3
);
253 temp2
= strsep(&temp
, ",");
254 retval
= get_value("SYMLINK", &temp
, &temp3
);
256 strfieldcpy(dev
.symlink
, temp3
);
258 dbg_parse("NUMBER name='%s', bus='%s', id='%s', symlink='%s'",
259 dev
.name
, dev
.bus
, dev
.id
, dev
.symlink
);
262 if (strcasecmp(temp2
, TYPE_TOPOLOGY
) == 0) {
267 retval
= get_value("BUS", &temp
, &temp3
);
270 strfieldcpy(dev
.bus
, temp3
);
273 temp2
= strsep(&temp
, ",");
274 retval
= get_value("PLACE", &temp
, &temp3
);
277 strfieldcpy(dev
.place
, temp3
);
279 /* NAME="new_name" */
280 temp2
= strsep(&temp
, ",");
281 retval
= get_value("NAME", &temp
, &temp3
);
284 strfieldcpy(dev
.name
, temp3
);
287 temp2
= strsep(&temp
, ",");
288 retval
= get_value("SYMLINK", &temp
, &temp3
);
290 strfieldcpy(dev
.symlink
, temp3
);
292 dbg_parse("TOPOLOGY name='%s', bus='%s', "
293 "place='%s', symlink='%s'",
294 dev
.name
, dev
.bus
, dev
.place
, dev
.symlink
);
297 if (strcasecmp(temp2
, TYPE_REPLACE
) == 0) {
301 /* KERNEL="kernel_name" */
302 retval
= get_value("KERNEL", &temp
, &temp3
);
305 strfieldcpy(dev
.kernel_name
, temp3
);
307 /* NAME="new_name" */
308 temp2
= strsep(&temp
, ",");
309 retval
= get_value("NAME", &temp
, &temp3
);
312 strfieldcpy(dev
.name
, temp3
);
315 temp2
= strsep(&temp
, ",");
316 retval
= get_value("SYMLINK", &temp
, &temp3
);
318 strfieldcpy(dev
.symlink
, temp3
);
320 dbg_parse("REPLACE name='%s', kernel_name='%s', symlink='%s'",
321 dev
.name
, dev
.kernel_name
, dev
.symlink
);
324 if (strcasecmp(temp2
, TYPE_CALLOUT
) == 0) {
329 retval
= get_value("BUS", &temp
, &temp3
);
332 strfieldcpy(dev
.bus
, temp3
);
334 /* PROGRAM="executable" */
335 temp2
= strsep(&temp
, ",");
336 retval
= get_value("PROGRAM", &temp
, &temp3
);
339 strfieldcpy(dev
.exec_program
, temp3
);
342 temp2
= strsep(&temp
, ",");
343 retval
= get_value("ID", &temp
, &temp3
);
346 strfieldcpy(dev
.id
, temp3
);
348 /* NAME="new_name" */
349 temp2
= strsep(&temp
, ",");
350 retval
= get_value("NAME", &temp
, &temp3
);
353 strfieldcpy(dev
.name
, temp3
);
356 temp2
= strsep(&temp
, ",");
357 retval
= get_value("SYMLINK", &temp
, &temp3
);
359 strfieldcpy(dev
.symlink
, temp3
);
361 dbg_parse("CALLOUT name='%s', bus='%s', program='%s', "
362 "id='%s', symlink='%s'",
363 dev
.name
, dev
.bus
, dev
.exec_program
,
364 dev
.id
, dev
.symlink
);
367 retval
= add_config_dev(&dev
);
369 dbg("add_config_dev returned with error %d", retval
);
373 dbg_parse("%s:%d:%Zd: error parsing '%s'", udev_rules_filename
,
374 lineno
, temp
- line
, temp
);
381 int namedev_init_permissions(void)
388 struct perm_device dev
;
390 fd
= fopen(udev_permissions_filename
, "r");
392 dbg("reading '%s' as permissions file", udev_permissions_filename
);
394 dbg("can't open '%s' as permissions file", udev_permissions_filename
);
398 /* loop through the whole file */
400 temp
= fgets(line
, sizeof(line
), fd
);
404 dbg_parse("read '%s'", temp
);
406 /* eat the whitespace at the beginning of the line */
407 while (isspace(*temp
))
414 /* see if this is a comment */
415 if (*temp
== COMMENT_CHARACTER
)
418 memset(&dev
, 0x00, sizeof(dev
));
421 temp2
= strsep(&temp
, ":");
423 dbg("cannot parse line '%s'", line
);
426 strncpy(dev
.name
, temp2
, sizeof(dev
.name
));
428 temp2
= strsep(&temp
, ":");
430 dbg("cannot parse line '%s'", line
);
433 strncpy(dev
.owner
, temp2
, sizeof(dev
.owner
));
435 temp2
= strsep(&temp
, ":");
437 dbg("cannot parse line '%s'", line
);
440 strncpy(dev
.group
, temp2
, sizeof(dev
.owner
));
443 dbg("cannot parse line: %s", line
);
446 dev
.mode
= strtol(temp
, NULL
, 8);
448 dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
449 dev
.name
, dev
.owner
, dev
.group
,
451 retval
= add_perm_dev(&dev
);
453 dbg("add_perm_dev returned with error %d", retval
);