diff options
author | John Crispin <blogic@openwrt.org> | 2013-11-14 13:41:13 +0100 |
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committer | John Crispin <blogic@openwrt.org> | 2013-11-15 17:05:20 +0100 |
commit | 916f95cb58604038695347ee41a430d8ca1f0556 (patch) | |
tree | 5dbb52a6adaf28c6c6989ea37e6975aa52075160 /plug/coldplug.c | |
parent | f9d31edb8938341b9217ee4c14eb58111414eb97 (diff) | |
download | unitd-916f95cb58604038695347ee41a430d8ca1f0556.tar unitd-916f95cb58604038695347ee41a430d8ca1f0556.zip |
debloat and reorganize code
split app into procd and init binaries
remove log support, this is an external service now
Signed-off-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'plug/coldplug.c')
-rw-r--r-- | plug/coldplug.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/plug/coldplug.c b/plug/coldplug.c new file mode 100644 index 0000000..466b759 --- /dev/null +++ b/plug/coldplug.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org> + * Copyright (C) 2013 John Crispin <blogic@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 2.1 + * as published by the Free Software Foundation + * + * 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. + */ + +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/mount.h> + +#include <unistd.h> + +#include "../procd.h" + +#include "hotplug.h" + +static struct uloop_process udevtrigger; + +static void coldplug_complete(struct uloop_timeout *t) +{ + DEBUG(4, "Coldplug complete\n"); + hotplug_last_event(NULL); + procd_state_next(); +} + +static void udevtrigger_complete(struct uloop_process *proc, int ret) +{ + DEBUG(4, "Finished udevtrigger\n"); + hotplug_last_event(coldplug_complete); +} + +void procd_coldplug(void) +{ + char *argv[] = { "udevtrigger", NULL }; + + umount2("/dev/pts", MNT_DETACH); + umount2("/dev/", MNT_DETACH); + mount("tmpfs", "/dev", "tmpfs", 0, "mode=0755,size=512K"); + mkdir("/dev/shm", 0755); + mkdir("/dev/pts", 0755); + mount("devpts", "/dev/pts", "devpts", 0, 0); + udevtrigger.cb = udevtrigger_complete; + udevtrigger.pid = fork(); + if (!udevtrigger.pid) { + execvp(argv[0], argv); + ERROR("Failed to start coldplug\n"); + exit(-1); + } + + if (udevtrigger.pid <= 0) { + ERROR("Failed to start new coldplug instance\n"); + return; + } + + uloop_process_add(&udevtrigger); + + DEBUG(4, "Launched coldplug instance, pid=%d\n", (int) udevtrigger.pid); +} |