mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-12-28 07:21:32 +03:00
1aa1e24848
We never used any of the libsysfs convenience features. Here we replace it completely with 300 lines of code, which are much simpler and a bit faster cause udev(d) does not open any syfs file for a simple event which does not need any parent device information. Signed-off-by: Kay Sievers <kay.sievers@suse.de>
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
|
|
* udevd.h
|
|
*
|
|
* Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
|
|
* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include "list.h"
|
|
|
|
#define UDEV_MAGIC "udevd_" UDEV_VERSION
|
|
#define UDEVD_SOCK_PATH "/org/kernel/udev/udevd"
|
|
#define UDEVSEND_WAIT_MAX_SECONDS 3
|
|
#define UDEVSEND_WAIT_LOOP_PER_SECOND 10
|
|
|
|
#define UDEVD_PRIORITY -4
|
|
#define UDEV_PRIORITY -2
|
|
|
|
#define EVENT_QUEUE_DIR ".udev/queue"
|
|
#define EVENT_FAILED_DIR ".udev/failed"
|
|
|
|
/* maximum limit of forked childs */
|
|
#define UDEVD_MAX_CHILDS 64
|
|
/* start to throttle forking if maximum number of running childs in our session is reached */
|
|
#define UDEVD_MAX_CHILDS_RUNNING 16
|
|
|
|
/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
|
|
#define UEVENT_BUFFER_SIZE 1024
|
|
#define UEVENT_NUM_ENVP 32
|
|
|
|
enum udevd_msg_type {
|
|
UDEVD_UNKNOWN,
|
|
UDEVD_UEVENT_UDEVSEND,
|
|
UDEVD_UEVENT_INITSEND,
|
|
UDEVD_UEVENT_NETLINK,
|
|
UDEVD_STOP_EXEC_QUEUE,
|
|
UDEVD_START_EXEC_QUEUE,
|
|
UDEVD_SET_LOG_LEVEL,
|
|
UDEVD_SET_MAX_CHILDS,
|
|
UDEVD_RELOAD_RULES,
|
|
};
|
|
|
|
|
|
struct udevd_msg {
|
|
char magic[32];
|
|
enum udevd_msg_type type;
|
|
char envbuf[UEVENT_BUFFER_SIZE+512];
|
|
};
|
|
|
|
struct uevent_msg {
|
|
enum udevd_msg_type type;
|
|
struct list_head node;
|
|
pid_t pid;
|
|
int exitstatus;
|
|
time_t queue_time;
|
|
char *action;
|
|
char *devpath;
|
|
char *subsystem;
|
|
dev_t devt;
|
|
unsigned long long seqnum;
|
|
char *physdevpath;
|
|
unsigned int timeout;
|
|
char *envp[UEVENT_NUM_ENVP+1];
|
|
char envbuf[];
|
|
};
|