mirror of
https://github.com/systemd/systemd-stable.git
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83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
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* udevd.h
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*
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* Userspace devfs
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*
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* Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
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* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
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*
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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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#include "list.h"
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#define UDEV_MAGIC "udevd_" UDEV_VERSION
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#define UDEVD_SOCK_PATH "udevd"
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#define UDEVSEND_WAIT_MAX_SECONDS 3
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#define UDEVSEND_WAIT_LOOP_PER_SECOND 10
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#define UDEVD_PRIORITY -4
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#define UDEV_PRIORITY -2
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/* duration of initialization phase with shorter timeout */
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#define UDEVD_INIT_TIME 5
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#define UDEVD_INIT_EVENT_TIMEOUT 2
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/* timeout to wait for missing events */
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#define UDEVD_EVENT_TIMEOUT 5
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/* maximum limit of runnig childs */
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#define UDEVD_MAX_CHILDS 64
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/* start to throttle forking if maximum number of running childs in our session is reached */
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#define UDEVD_MAX_CHILDS_RUNNING 8
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/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
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#define UEVENT_BUFFER_SIZE 1024
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#define UEVENT_NUM_ENVP 32
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enum udevd_msg_type {
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UDEVD_UNKNOWN,
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UDEVD_UEVENT_UDEVSEND,
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UDEVD_UEVENT_INITSEND,
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UDEVD_UEVENT_NETLINK,
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UDEVD_STOP_EXEC_QUEUE,
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UDEVD_START_EXEC_QUEUE,
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UDEVD_SET_LOG_LEVEL,
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UDEVD_SET_MAX_CHILDS,
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};
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struct udevd_msg {
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char magic[32];
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enum udevd_msg_type type;
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char envbuf[UEVENT_BUFFER_SIZE+512];
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};
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struct uevent_msg {
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enum udevd_msg_type type;
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struct list_head node;
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pid_t pid;
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long queue_time;
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char *action;
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char *devpath;
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char *subsystem;
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unsigned long long seqnum;
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char *physdevpath;
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unsigned int timeout;
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char *envp[UEVENT_NUM_ENVP+1];
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char envbuf[];
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};
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