mirror of
https://git.openwrt.org/project/procd.git
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7e6c6efd6f
Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "../procd.h"
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#include "../libc-compat.h"
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#include "hotplug.h"
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#include "../container.h"
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static struct uloop_process udevtrigger;
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static void coldplug_complete(struct uloop_timeout *t)
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{
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P_DEBUG(4, "Coldplug complete\n");
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hotplug_last_event(NULL);
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procd_state_next();
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}
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static void udevtrigger_complete(struct uloop_process *proc, int ret)
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{
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P_DEBUG(4, "Finished udevtrigger\n");
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hotplug_last_event(coldplug_complete);
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}
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void procd_coldplug(void)
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{
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char *argv[] = { "udevtrigger", NULL };
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unsigned int oldumask = umask(0);
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if (!is_container()) {
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umount2("/dev/pts", MNT_DETACH);
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umount2("/dev/", MNT_DETACH);
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mount("tmpfs", "/dev", "tmpfs", MS_NOATIME | MS_NOEXEC | MS_NOSUID, "mode=0755,size=512K");
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mkdir("/dev/pts", 0755);
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mount("devpts", "/dev/pts", "devpts", MS_NOATIME | MS_NOEXEC | MS_NOSUID, 0);
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}
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ignore(symlink("/tmp/shm", "/dev/shm"));
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umask(oldumask);
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udevtrigger.cb = udevtrigger_complete;
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udevtrigger.pid = fork();
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if (!udevtrigger.pid) {
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execvp(argv[0], argv);
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ERROR("Failed to start coldplug: %m\n");
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exit(EXIT_FAILURE);
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}
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if (udevtrigger.pid <= 0) {
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ERROR("Failed to start new coldplug instance: %m\n");
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return;
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}
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uloop_process_add(&udevtrigger);
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P_DEBUG(4, "Launched coldplug instance, pid=%d\n", (int) udevtrigger.pid);
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}
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