/* * udevd.h * * Userspace devfs * * Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com> * Copyright (C) 2004 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 "udevd" #define UDEVSEND_WAIT_MAX_SECONDS 3 #define UDEVSEND_WAIT_LOOP_PER_SECOND 10 #define UDEVD_PRIORITY -4 #define UDEV_PRIORITY -2 /* duration of initialization phase with shorter timeout */ #define UDEVD_INIT_TIME 5 #define UDEVD_INIT_EVENT_TIMEOUT 2 /* timeout to wait for missing events */ #define UDEVD_EVENT_TIMEOUT 5 /* maximum limit of runnig 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 8 /* 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, }; 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; long queue_time; char *action; char *devpath; char *subsystem; unsigned long long seqnum; char *physdevpath; unsigned int timeout; char *envp[UEVENT_NUM_ENVP+1]; char envbuf[]; };