X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fprocd.git;a=blobdiff_plain;f=initd%2Fearly.c;h=bf519f615528033e5017534ed700862c7b66e55d;hp=77ced772beee03082dd68a324bd8a95d3fa7d849;hb=0f5897760272307d671f4c4c11737241755e853d;hpb=916f95cb58604038695347ee41a430d8ca1f0556 diff --git a/initd/early.c b/initd/early.c index 77ced77..bf519f6 100644 --- a/initd/early.c +++ b/initd/early.c @@ -21,26 +21,9 @@ #include #include -#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) @@ -53,31 +36,53 @@ static void early_console(const char *dev) { struct stat s; - int dd; if (stat(dev, &s)) { ERROR("Failed to stat %s\n", dev); return; } - dd = open(dev, O_RDWR); - if (dd < 0) - dd = open("/dev/null", O_RDWR); + if (patch_stdio(dev)) { + ERROR("Failed to setup i/o redirection\n"); + return; + } + + 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 @@ -87,9 +92,7 @@ early(void) return; early_mounts(); - early_dev(); early_env(); - early_console("/dev/console"); LOG("Console is alive\n"); }