fs/devfs/devfs_rule.c

101 static devfs_rid devfs_rid_input(devfs_rid rid, struct devfs_mount *dm);
104 		struct devfs_mount *dm, struct devfs_dirent *de);
105 static void devfs_rule_applydm(struct devfs_krule *dk, struct devfs_mount *dm);
110 static int  devfs_rule_input(struct devfs_rule *dr, 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,
120 		struct devfs_mount *dm, struct devfs_dirent *de,
123 		struct devfs_mount *dm);
127 static int  devfs_ruleset_use(devfs_rsnum rsnum, struct devfs_mount *dm);
138  * lock on dm in case we need to run anything.
141 devfs_rules_apply(struct devfs_mount *dm, struct devfs_dirent *de)
145 	sx_assert(&dm->dm_lock, SX_XLOCKED);
147 	if (dm->dm_ruleset == 0)
150 	ds = devfs_ruleset_bynum(dm->dm_ruleset);
152 	devfs_ruleset_applyde(ds, dm, de, devfs_rule_depth);
160 devfs_rules_ioctl(struct devfs_mount *dm, u_long cmd, caddr_t data, struct thread *td)
170 	sx_assert(&dm->dm_lock, SX_XLOCKED);
187 		error = devfs_rule_input(dr, dm);
203 		error = devfs_rule_input(dr, dm);
228 		devfs_rule_applydm(dk, dm);
233 		rid = devfs_rid_input(rid, dm);
239 		devfs_rule_applydm(dk, dm);
243 		rid = devfs_rid_input(rid, dm);
254 		error = devfs_rule_input(dr, dm);
283 		error = devfs_ruleset_use(rsnum, dm);
287 		rsnum = rid2rsn(devfs_rid_input(mkrid(rsnum, 0), dm));
293 		devfs_ruleset_applydm(ds, dm);
317  * Adjust the rule identifier to use the ruleset of dm if one isn't
325 devfs_rid_input(devfs_rid rid, struct devfs_mount *dm)
329 		return (mkrid(dm->dm_ruleset, rid2rn(rid)));
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);
457 devfs_rule_input(struct devfs_rule *dr, struct devfs_mount *dm)
462 	dr->dr_id = devfs_rid_input(dr->dr_id, dm);
532 devfs_rule_match(struct devfs_krule *dk, struct devfs_mount *dm,
566 		if (!devfs_rule_matchpath(dk, dm, de))
576 devfs_rule_matchpath(struct devfs_krule *dk, struct devfs_mount *dm,
589 	    (de->de_dirent->d_type == DT_DIR && de != dm->dm_rootdir &&
592 		pname = devfs_fqpn(specname, dm, de, NULL);
606 devfs_rule_run(struct devfs_krule *dk,  struct devfs_mount *dm,
612 	if (!devfs_rule_match(dk, dm, de))
639 			devfs_ruleset_applyde(ds, dm, de, depth - 1);
648 devfs_ruleset_applyde(struct devfs_ruleset *ds, struct devfs_mount *dm,
654 		devfs_rule_run(dk, dm, de, depth);
658  * Apply all the rules in ds to all the entires in dm.
661 devfs_ruleset_applydm(struct devfs_ruleset *ds, struct devfs_mount *dm)
669 	 *		foreach(de in dm)
674 	 *	foreach(de in dm)
682 		devfs_rule_applydm(dk, dm);
748  * Make rsnum the active ruleset for dm.
751 devfs_ruleset_use(devfs_rsnum rsnum, struct devfs_mount *dm)
755 	if (dm->dm_ruleset != 0) {
756 		cds = devfs_ruleset_bynum(dm->dm_ruleset);
762 		dm->dm_ruleset = 0;
771 	dm->dm_ruleset = rsnum;
777 devfs_rules_cleanup(struct devfs_mount *dm)
781 	sx_assert(&dm->dm_lock, SX_XLOCKED);
782 	if (dm->dm_ruleset != 0) {
783 		ds = devfs_ruleset_bynum(dm->dm_ruleset);
790  * Make rsnum the active ruleset for dm (locked)
793 devfs_ruleset_set(devfs_rsnum rsnum, struct devfs_mount *dm)
796 	sx_assert(&dm->dm_lock, SX_XLOCKED);
799 	devfs_ruleset_use(rsnum, dm);
807 devfs_ruleset_apply(struct devfs_mount *dm)
811 	sx_assert(&dm->dm_lock, SX_XLOCKED);
814 	if (dm->dm_ruleset == 0) {
818 	ds = devfs_ruleset_bynum(dm->dm_ruleset);
820 		devfs_ruleset_applydm(ds, dm);