#include <sys/mount.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/sysmacros.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
-#include "../log.h"
+#include "../utils/utils.h"
#include "init.h"
-
-static void
-early_mounts(void)
-{
- mount("proc", "/proc", "proc", MS_NOATIME, 0);
- mount("sysfs", "/sys", "sysfs", MS_NOATIME, 0);
-
- mount("tmpfs", "/tmp", "tmpfs", MS_NOSUID | MS_NODEV | MS_NOATIME, NULL);
- mkdir("/tmp/run", 0777);
- mkdir("/tmp/lock", 0777);
- mkdir("/tmp/state", 0777);
- symlink("/tmp", "/var");
-
- mount("tmpfs", "/dev", "tmpfs", MS_NOATIME, "mode=0755,size=512K");
- mkdir("/dev/shm", 0755);
- mkdir("/dev/pts", 0755);
- mount("devpts", "/dev/pts", "devpts", MS_NOATIME, "mode=600");
-}
+#include "../libc-compat.h"
static void
early_dev(void)
early_console(const char *dev)
{
struct stat s;
- int dd;
if (stat(dev, &s)) {
- ERROR("Failed to stat %s\n", dev);
+ ERROR("Failed to stat %s: %m\n", dev);
+ return;
+ }
+
+ if (patch_stdio(dev)) {
+ ERROR("Failed to setup i/o redirection\n");
return;
}
- dd = open(dev, O_RDWR);
- if (dd < 0)
- dd = open("/dev/null", O_RDWR);
+ fcntl(STDERR_FILENO, F_SETFL, fcntl(STDERR_FILENO, F_GETFL) | O_NONBLOCK);
+}
- dup2(dd, STDIN_FILENO);
- dup2(dd, STDOUT_FILENO);
- dup2(dd, STDERR_FILENO);
+static void
+early_mounts(void)
+{
+ unsigned int oldumask = umask(0);
- if (dd != STDIN_FILENO &&
- dd != STDOUT_FILENO &&
- dd != STDERR_FILENO)
- close(dd);
+ mount("proc", "/proc", "proc", MS_NOATIME | MS_NODEV | MS_NOEXEC | MS_NOSUID, 0);
+ mount("sysfs", "/sys", "sysfs", MS_NOATIME | MS_NODEV | MS_NOEXEC | MS_NOSUID, 0);
+ mount("cgroup", "/sys/fs/cgroup", "cgroup", MS_NODEV | MS_NOEXEC | MS_NOSUID, 0);
+ mount("tmpfs", "/dev", "tmpfs", MS_NOATIME | MS_NOSUID, "mode=0755,size=512K");
+ ignore(symlink("/tmp/shm", "/dev/shm"));
+ mkdir("/dev/pts", 0755);
+ mount("devpts", "/dev/pts", "devpts", MS_NOATIME | MS_NOEXEC | MS_NOSUID, "mode=600");
+ early_dev();
+
+ early_console("/dev/console");
+ if (mount_zram_on_tmp()) {
+ mount("tmpfs", "/tmp", "tmpfs", MS_NOSUID | MS_NODEV | MS_NOATIME, 0);
+ mkdir("/tmp/shm", 01777);
+ } else {
+ mkdir("/tmp/shm", 01777);
+ mount("tmpfs", "/tmp/shm", "tmpfs", MS_NOSUID | MS_NODEV | MS_NOATIME,
+ "mode=01777");
+ }
+ mkdir("/tmp/run", 0755);
+ mkdir("/tmp/lock", 0755);
+ mkdir("/tmp/state", 0755);
+ umask(oldumask);
}
static void
early_env(void)
{
- setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin", 1);
+ setenv("PATH", EARLY_PATH, 1);
}
void
return;
early_mounts();
- early_dev();
early_env();
- early_console("/dev/console");
LOG("Console is alive\n");
}