95776dc6ec
This scheme is more consistent and makes it obvious if a match happens against the event device only, or the full chain of parent devices. The old key names are now: BUS -> SUBSYSTEMS ID -> KERNELS SYSFS -> ATTRS DRIVER -> DRIVERS Match keys for the event device: KERNEL SUBSYSTEM ATTR DRIVER (in a future release, for now the same as DRIVERS) Match keys for all devices along the parent device chain: KERNELS SUBSYSTEMS ATTRS DRIVERS ID, BUS, SYSFS are no longer mentioned in the man page but still work. DRIVER must be converted to DRIVERS to match the new scheme. For now, an error is logged, if DRIVER is used. In a future release, the DRIVER key behaviour will change.
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
/*
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* udev_rules.h
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*
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* Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef UDEV_RULES_H
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#define UDEV_RULES_H
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#include "udev.h"
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#include "list.h"
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#define PAIRS_MAX 5
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#define RULEFILE_SUFFIX ".rules"
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enum key_operation {
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KEY_OP_UNSET,
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KEY_OP_MATCH,
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KEY_OP_NOMATCH,
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KEY_OP_ADD,
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KEY_OP_ASSIGN,
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KEY_OP_ASSIGN_FINAL,
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};
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struct key {
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enum key_operation operation;
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size_t val_off;
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};
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struct key_pair {
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struct key key;
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size_t key_name_off;
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};
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struct key_pairs {
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int count;
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struct key_pair keys[PAIRS_MAX];
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};
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enum import_type {
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IMPORT_UNSET,
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IMPORT_PROGRAM,
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IMPORT_FILE,
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IMPORT_PARENT,
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};
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struct udev_rule {
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struct key action;
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struct key devpath;
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struct key kernel;
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struct key subsystem;
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struct key driver;
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struct key_pairs attr;
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struct key kernels;
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struct key subsystems;
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struct key drivers;
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struct key_pairs attrs;
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struct key_pairs env;
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struct key program;
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struct key result;
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struct key import;
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enum import_type import_type;
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struct key run;
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struct key wait_for_sysfs;
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struct key label;
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struct key goto_label;
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struct key name;
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struct key symlink;
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struct key owner;
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struct key group;
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mode_t mode;
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enum key_operation mode_operation;
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unsigned int partitions;
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unsigned int last_rule:1,
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ignore_device:1,
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ignore_remove:1;
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size_t bufsize;
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char buf[];
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};
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struct udev_rules {
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char *buf;
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size_t bufsize;
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size_t current;
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int resolve_names;
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};
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extern int udev_rules_init(struct udev_rules *rules, int resolve_names);
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extern void udev_rules_cleanup(struct udev_rules *rules);
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extern void udev_rules_iter_init(struct udev_rules *rules);
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extern struct udev_rule *udev_rules_iter_next(struct udev_rules *rules);
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extern struct udev_rule *udev_rules_iter_label(struct udev_rules *rules, const char *label);
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extern int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev);
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extern int udev_rules_get_run(struct udev_rules *rules, struct udevice *udev);
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extern void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize);
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#endif
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