X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.h;h=e6ed58d622d1786b6bad858722240bc58f32e189;hp=1c4b1b88c22d23352f4b57098ae63c4894204890;hb=00a074480e4ab15e61f13f8791015fa0befcadce;hpb=79721e0a7770b1a5874ef96cbf93a4c6bd19e138 diff --git a/udevd.h b/udevd.h index 1c4b1b88c..e6ed58d62 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 @@ -25,29 +22,57 @@ #include "list.h" #define UDEV_MAGIC "udevd_" UDEV_VERSION -#define EVENT_TIMEOUT_SEC 10 -#define UDEVD_SOCK_PATH "udevd" -#define SEND_WAIT_MAX_SECONDS 3 -#define SEND_WAIT_LOOP_PER_SECOND 10 +#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" +#define EVENT_SEQNUM ".udev/uevent_seqnum" + +/* 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 HOTPLUG_BUFFER_SIZE 1024 -#define HOTPLUG_NUM_ENVP 32 +#define UEVENT_BUFFER_SIZE 2048 +#define UEVENT_NUM_ENVP 64 + +enum udevd_msg_type { + UDEVD_UNKNOWN, + UDEVD_UEVENT_UDEVSEND, + UDEVD_UEVENT_NETLINK, + UDEVD_STOP_EXEC_QUEUE, + UDEVD_START_EXEC_QUEUE, + UDEVD_SET_LOG_LEVEL, + UDEVD_SET_MAX_CHILDS, + UDEVD_RELOAD_RULES, +}; + -struct udevsend_msg { - char magic[20]; - char envbuf[HOTPLUG_BUFFER_SIZE+256]; +struct udevd_msg { + char magic[32]; + enum udevd_msg_type type; + char envbuf[UEVENT_BUFFER_SIZE+512]; }; -struct hotplug_msg { - struct list_head list; +struct uevent_msg { + enum udevd_msg_type type; + struct list_head node; pid_t pid; - long queue_time; + int exitstatus; + time_t queue_time; char *action; char *devpath; char *subsystem; + dev_t devt; unsigned long long seqnum; char *physdevpath; - char *envp[HOTPLUG_NUM_ENVP+1]; + unsigned int timeout; + char *envp[UEVENT_NUM_ENVP+1]; char envbuf[]; };