X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.h;h=20dde8e8b344c8a2021b74e755ead74b97af4ac1;hp=e24bc28a78ccf24b91aef8fa36e7c2b8e7c8880e;hb=c2e04d6b8b82e870c6b9ce397f5fdf9c8b4efb5a;hpb=53921bfa44129a19661a4aaa4c1647282921fc18 diff --git a/udevd.h b/udevd.h index e24bc28a7..20dde8e8b 100644 --- a/udevd.h +++ b/udevd.h @@ -1,11 +1,8 @@ /* * udevd.h * - * Userspace devfs - * * Copyright (C) 2004 Ling, Xiaofeng - * Copyright (C) 2004 Kay Sievers - * + * Copyright (C) 2004-2005 Kay Sievers * * 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 @@ -24,26 +21,55 @@ #include "list.h" -/* - * FIXME: udev_root is post compile configurable and may also be - * mounted over at any time and /var/run/ and /tmp/ is unusable, - * cause it's cleaned at system startup, long _after_ udevd is - * already running. Should we use udev_init_config()? - */ +#define UDEV_MAGIC "udevd_" UDEV_VERSION +#define UDEVD_SOCK_PATH "/org/kernel/udev/udevd" + +#define UDEVD_PRIORITY -4 +#define UDEV_PRIORITY -2 + +#define EVENT_QUEUE_DIR ".udev/queue" +#define EVENT_FAILED_DIR ".udev/failed" +#define EVENT_SEQNUM ".udev/uevent_seqnum" -#define UDEV_MAGIC "udev_" UDEV_VERSION -#define EVENT_TIMEOUT_SEC 5 -#define UDEVSEND_CONNECT_RETRY 20 /* x 100 millisec */ -#define UDEVD_SOCKET UDEV_ROOT ".udevd.socket" -#define UDEVD_LOCK UDEV_ROOT ".udevd.pid" +/* maximum limit of forked childs */ +#define UDEVD_MAX_CHILDS 256 +/* 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 2048 +#define UEVENT_NUM_ENVP 64 + +enum udevd_msg_type { + UDEVD_UNKNOWN, + 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 hotplug_msg { - char magic[20]; - struct list_head list; +struct uevent_msg { + enum udevd_msg_type type; + struct list_head node; pid_t pid; - int seqnum; + int exitstatus; time_t queue_time; - char action[8]; - char devpath[128]; - char subsystem[16]; + 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[]; };