fs/devfs/devfs_rule.c

103 static void devfs_rule_applyde_recursive(struct devfs_krule *dk,
105 static void devfs_rule_applydm(struct devfs_krule *dk, struct devfs_mount *dm);
112 static int  devfs_rule_match(struct devfs_krule *dk, struct devfs_mount *dm,
114 static int  devfs_rule_matchpath(struct devfs_krule *dk, struct devfs_mount *dm,
116 static void devfs_rule_run(struct devfs_krule *dk, struct devfs_mount *dm,
163 	struct devfs_krule *dk;
190 		dk = devfs_rule_byid(dr->dr_id);
191 		if (dk != NULL) {
226 		dk = malloc(sizeof(*dk), M_TEMP, M_WAITOK | M_ZERO);
227 		memcpy(&dk->dk_rule, dr, sizeof(*dr));
228 		devfs_rule_applydm(dk, dm);
229 		free(dk, M_TEMP);
234 		dk = devfs_rule_byid(rid);
235 		if (dk == NULL) {
239 		devfs_rule_applydm(dk, dm);
244 		dk = devfs_rule_byid(rid);
245 		if (dk == NULL) {
249 		ds = dk->dk_ruleset;
250 		error = devfs_rule_delete(dk);
271 		TAILQ_FOREACH(dk, &ds->ds_rules, dk_list) {
272 			if (rid2rn(dk->dk_rule.dr_id) > rnum)
275 		if (dk == NULL) {
279 		memcpy(dr, &dk->dk_rule, sizeof(*dr));
335  * Apply dk to de and everything under de.
343 devfs_rule_applyde_recursive(struct devfs_krule *dk, struct devfs_mount *dm,
349 		devfs_rule_applyde_recursive(dk, dm, de2);
350 	devfs_rule_run(dk, dm, de, devfs_rule_depth);
354  * Apply dk to all entires in dm.
357 devfs_rule_applydm(struct devfs_krule *dk, struct devfs_mount *dm)
360 	devfs_rule_applyde_recursive(dk, dm, dm->dm_rootdir);
370 	struct devfs_krule *dk;
373 	dk = TAILQ_LAST(&ds->ds_rules, rulehead);
374 	if (dk == NULL)
377 		*rnump = rid2rn(dk->dk_rule.dr_id) + 100;
379 		if (*rnump < rid2rn(dk->dk_rule.dr_id))
394 	struct devfs_krule *dk;
401 	TAILQ_FOREACH(dk, &ds->ds_rules, dk_list) {
402 		if (rid2rn(dk->dk_rule.dr_id) == rn)
403 			return (dk);
404 		else if (rid2rn(dk->dk_rule.dr_id) > rn)
415 devfs_rule_delete(struct devfs_krule *dk)
419 	if (dk->dk_rule.dr_iacts & DRA_INCSET) {
420 		ds = devfs_ruleset_bynum(dk->dk_rule.dr_incset);
425 	ds = dk->dk_ruleset;
426 	TAILQ_REMOVE(&ds->ds_rules, dk, dk_list);
428 	free(dk, M_DEVFSRULE);
476 	struct devfs_krule *dk;
508 	dk = malloc(sizeof(*dk), M_DEVFSRULE, M_WAITOK | M_ZERO);
509 	dk->dk_ruleset = ds;
513 	memcpy(&dk->dk_rule, dr, sizeof(*dr));
514 	dk->dk_rule.dr_id = mkrid(rid2rsn(dk->dk_rule.dr_id), dkrn);
518 			TAILQ_INSERT_BEFORE(k1, dk, dk_list);
523 		TAILQ_INSERT_TAIL(&ds->ds_rules, dk, dk_list);
528  * Determine whether dk matches de.  Returns 1 if dk should be run on
532 devfs_rule_match(struct devfs_krule *dk, struct devfs_mount *dm,
535 	struct devfs_rule *dr = &dk->dk_rule;
566 		if (!devfs_rule_matchpath(dk, dm, de))
573  * Determine whether dk matches de on account of dr_pathptrn.
576 devfs_rule_matchpath(struct devfs_krule *dk, struct devfs_mount *dm,
579 	struct devfs_rule *dr = &dk->dk_rule;
603  * Run dk on de.
606 devfs_rule_run(struct devfs_krule *dk,  struct devfs_mount *dm,
609 	struct devfs_rule *dr = &dk->dk_rule;
612 	if (!devfs_rule_match(dk, dm, de))
637 			ds = devfs_ruleset_bynum(dk->dk_rule.dr_incset);
651 	struct devfs_krule *dk;
653 	TAILQ_FOREACH(dk, &ds->ds_rules, dk_list)
654 		devfs_rule_run(dk, dm, de, depth);
663 	struct devfs_krule *dk;
668 	 *	foreach(dk in ds)
670 	 *			apply(dk to de)
675 	 *		foreach(dk in ds)
676 	 *			apply(dk to de)
681 	TAILQ_FOREACH(dk, &ds->ds_rules, dk_list)
682 		devfs_rule_applydm(dk, dm);