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 static int add_config_dev(struct config_device
*new_dev
)
41 struct config_device
*tmp_dev
;
43 tmp_dev
= malloc(sizeof(*tmp_dev
));
46 memcpy(tmp_dev
, new_dev
, sizeof(*tmp_dev
));
47 list_add_tail(&tmp_dev
->node
, &config_device_list
);
48 //dump_config_dev(tmp_dev);
52 int get_pair(char **orig_string
, char **left
, char **right
)
55 char *string
= *orig_string
;
60 /* eat any whitespace */
61 while (isspace(*string
) || *string
== ',')
64 /* split based on '=' */
65 temp
= strsep(&string
, "=");
70 /* take the right side and strip off the '"' */
71 while (isspace(*string
))
78 temp
= strsep(&string
, "\"");
79 if (!string
|| *temp
== '\0')
82 *orig_string
= string
;
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[0]='%s', sysfs_value[0]='%s'",
95 dev
->name
, dev
->bus
, dev
->sysfs_pair
[0].file
, dev
->sysfs_pair
[0].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
);
172 dbg_parse("read '%s'", temp
);
174 /* eat the whitespace */
175 while (isspace(*temp
))
179 if ((*temp
== '\0') || (*temp
== '\n'))
182 /* see if this is a comment */
183 if (*temp
== COMMENT_CHARACTER
)
186 memset(&dev
, 0x00, sizeof(struct config_device
));
189 temp2
= strsep(&temp
, ",");
191 if (strcasecmp(temp2
, TYPE_LABEL
) == 0) {
196 if (strcasecmp(temp2
, TYPE_NUMBER
) == 0) {
201 if (strcasecmp(temp2
, TYPE_TOPOLOGY
) == 0) {
206 if (strcasecmp(temp2
, TYPE_REPLACE
) == 0) {
211 if (strcasecmp(temp2
, TYPE_CALLOUT
) == 0) {
216 dbg_parse("unknown type of method '%s'", temp2
);
219 /* get all known keys */
221 retval
= get_pair(&temp
, &temp2
, &temp3
);
225 if (strcasecmp(temp2
, FIELD_BUS
) == 0) {
226 strfieldcpy(dev
.bus
, temp3
);
230 if (strcasecmp(temp2
, FIELD_ID
) == 0) {
231 strfieldcpy(dev
.id
, temp3
);
235 if (strcasecmp(temp2
, FIELD_PLACE
) == 0) {
236 strfieldcpy(dev
.place
, temp3
);
240 if (strncasecmp(temp2
, FIELD_SYSFS
, sizeof(FIELD_SYSFS
)-1) == 0) {
241 struct sysfs_pair
*pair
= &dev
.sysfs_pair
[0];
242 int sysfs_pair_num
= 0;
244 /* find first unused pair */
245 while (pair
->file
[0] != '\0') {
247 if (sysfs_pair_num
>= MAX_SYSFS_PAIRS
) {
254 /* remove prepended 'SYSFS_' */
255 strfieldcpy(pair
->file
, temp2
+ sizeof(FIELD_SYSFS
)-1);
256 strfieldcpy(pair
->value
, temp3
);
261 if (strcasecmp(temp2
, FIELD_KERNEL
) == 0) {
262 strfieldcpy(dev
.kernel_name
, temp3
);
266 if (strcasecmp(temp2
, FIELD_PROGRAM
) == 0) {
267 strfieldcpy(dev
.exec_program
, temp3
);
271 if (strcasecmp(temp2
, FIELD_NAME
) == 0) {
272 strfieldcpy(dev
.name
, temp3
);
276 if (strcasecmp(temp2
, FIELD_SYMLINK
) == 0) {
277 strfieldcpy(dev
.symlink
, temp3
);
281 dbg_parse("unknown type of field '%s'", temp2
);
284 /* check presence of keys according to method type */
287 dbg_parse(TYPE_LABEL
" name='%s', bus='%s', "
288 "sysfs_file[0]='%s', sysfs_value[0]='%s', symlink='%s'",
289 dev
.name
, dev
.bus
, dev
.sysfs_pair
[0].file
,
290 dev
.sysfs_pair
[0].value
, dev
.symlink
);
291 if ((*dev
.name
== '\0') ||
292 (*dev
.sysfs_pair
[0].file
== '\0') ||
293 (*dev
.sysfs_pair
[0].value
== '\0'))
297 dbg_parse(TYPE_NUMBER
" name='%s', bus='%s', id='%s', symlink='%s'",
298 dev
.name
, dev
.bus
, dev
.id
, dev
.symlink
);
299 if ((*dev
.name
== '\0') ||
300 (*dev
.bus
== '\0') ||
305 dbg_parse(TYPE_TOPOLOGY
" name='%s', bus='%s', "
306 "place='%s', symlink='%s'",
307 dev
.name
, dev
.bus
, dev
.place
, dev
.symlink
);
308 if ((*dev
.name
== '\0') ||
309 (*dev
.bus
== '\0') ||
310 (*dev
.place
== '\0'))
314 dbg_parse(TYPE_REPLACE
" name='%s', kernel_name='%s', symlink='%s'",
315 dev
.name
, dev
.kernel_name
, dev
.symlink
);
316 if ((*dev
.name
== '\0') ||
317 (*dev
.kernel_name
== '\0'))
321 dbg_parse(TYPE_CALLOUT
" name='%s', bus='%s', program='%s', "
322 "id='%s', symlink='%s'",
323 dev
.name
, dev
.bus
, dev
.exec_program
,
324 dev
.id
, dev
.symlink
);
325 if ((*dev
.name
== '\0') ||
327 (*dev
.exec_program
== '\0'))
331 dbg_parse("unknown type of method");
335 retval
= add_config_dev(&dev
);
337 dbg("add_config_dev returned with error %d", retval
);
342 dbg_parse("%s:%d:%Zd: field missing or parse error", udev_rules_filename
,
343 lineno
, temp
- line
);
349 int namedev_init_permissions(void)
356 struct perm_device dev
;
358 fd
= fopen(udev_permissions_filename
, "r");
360 dbg("reading '%s' as permissions file", udev_permissions_filename
);
362 dbg("can't open '%s' as permissions file", udev_permissions_filename
);
366 /* loop through the whole file */
368 temp
= fgets(line
, sizeof(line
), fd
);
372 dbg_parse("read '%s'", temp
);
374 /* eat the whitespace at the beginning of the line */
375 while (isspace(*temp
))
379 if ((*temp
== '\0') || (*temp
== '\n'))
382 /* see if this is a comment */
383 if (*temp
== COMMENT_CHARACTER
)
386 memset(&dev
, 0x00, sizeof(dev
));
389 temp2
= strsep(&temp
, ":");
391 dbg("cannot parse line '%s'", line
);
394 strncpy(dev
.name
, temp2
, sizeof(dev
.name
));
396 temp2
= strsep(&temp
, ":");
398 dbg("cannot parse line '%s'", line
);
401 strncpy(dev
.owner
, temp2
, sizeof(dev
.owner
));
403 temp2
= strsep(&temp
, ":");
405 dbg("cannot parse line '%s'", line
);
408 strncpy(dev
.group
, temp2
, sizeof(dev
.owner
));
411 dbg("cannot parse line: %s", line
);
414 dev
.mode
= strtol(temp
, NULL
, 8);
416 dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
417 dev
.name
, dev
.owner
, dev
.group
,
419 retval
= add_perm_dev(&dev
);
421 dbg("add_perm_dev returned with error %d", retval
);