| devfs_rule.c (164033) | devfs_rule.c (177458) |
|---|---|
| 1/*- 2 * Copyright (c) 2002 Dima Dorfman. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2002 Dima Dorfman. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/fs/devfs/devfs_rule.c 164033 2006-11-06 13:42:10Z rwatson $ | 26 * $FreeBSD: head/sys/fs/devfs/devfs_rule.c 177458 2008-03-20 16:08:42Z kib $ |
| 27 */ 28 29/* 30 * DEVFS ruleset implementation. 31 * 32 * A note on terminology: To "run" a rule on a dirent is to take the 33 * prescribed action; to "apply" a rule is to check whether it matches 34 * a dirent and run if if it does. --- 487 unchanged lines hidden (view full) --- 522 * Determine whether dk matches de. Returns 1 if dk should be run on 523 * de; 0, otherwise. 524 */ 525static int 526devfs_rule_match(struct devfs_krule *dk, struct devfs_dirent *de) 527{ 528 struct devfs_rule *dr = &dk->dk_rule; 529 struct cdev *dev; | 27 */ 28 29/* 30 * DEVFS ruleset implementation. 31 * 32 * A note on terminology: To "run" a rule on a dirent is to take the 33 * prescribed action; to "apply" a rule is to check whether it matches 34 * a dirent and run if if it does. --- 487 unchanged lines hidden (view full) --- 522 * Determine whether dk matches de. Returns 1 if dk should be run on 523 * de; 0, otherwise. 524 */ 525static int 526devfs_rule_match(struct devfs_krule *dk, struct devfs_dirent *de) 527{ 528 struct devfs_rule *dr = &dk->dk_rule; 529 struct cdev *dev; |
| 530 struct cdevsw *dsw; |
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| 530 531 dev = devfs_rule_getdev(de); 532 /* 533 * At this point, if dev is NULL, we should assume that any 534 * criteria that depend on it don't match. We should *not* 535 * just ignore them (i.e., act like they weren't specified), 536 * since that makes a rule that only has criteria dependent on 537 * the struct cdev *match all symlinks and directories. 538 * 539 * Note also that the following tests are somewhat reversed: 540 * They're actually testing to see whether the condition does 541 * *not* match, since the default is to assume the rule should 542 * be run (such as if there are no conditions). | 531 532 dev = devfs_rule_getdev(de); 533 /* 534 * At this point, if dev is NULL, we should assume that any 535 * criteria that depend on it don't match. We should *not* 536 * just ignore them (i.e., act like they weren't specified), 537 * since that makes a rule that only has criteria dependent on 538 * the struct cdev *match all symlinks and directories. 539 * 540 * Note also that the following tests are somewhat reversed: 541 * They're actually testing to see whether the condition does 542 * *not* match, since the default is to assume the rule should 543 * be run (such as if there are no conditions). |
| 543 * 544 * XXX: lacks threadref on dev | |
| 545 */ | 544 */ |
| 546 if (dr->dr_icond & DRC_DSWFLAGS) 547 if (dev == NULL || 548 (dev->si_devsw->d_flags & dr->dr_dswflags) == 0) | 545 if (dr->dr_icond & DRC_DSWFLAGS) { 546 if (dev == NULL) |
| 549 return (0); | 547 return (0); |
| 548 dsw = dev_refthread(dev); 549 if (dsw == NULL) 550 return (0); 551 if ((dsw->d_flags & dr->dr_dswflags) == 0) { 552 dev_relthread(dev); 553 return (0); 554 } 555 dev_relthread(dev); 556 } |
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| 550 if (dr->dr_icond & DRC_PATHPTRN) 551 if (!devfs_rule_matchpath(dk, de)) 552 return (0); 553 554 return (1); 555} 556 557/* --- 201 unchanged lines hidden --- | 557 if (dr->dr_icond & DRC_PATHPTRN) 558 if (!devfs_rule_matchpath(dk, de)) 559 return (0); 560 561 return (1); 562} 563 564/* --- 201 unchanged lines hidden --- |