Save pending changes in 1.0.0.0 branch

9 files changed, 387 insertions, 355 deletions

diff --git a/src/init/deps-exe/s6-halt b/src/init/deps-exe/s6-linux-init
index e7187fe..e7187fe 100644
--- a/src/init/deps-exe/s6-halt
+++ b/src/init/deps-exe/s6-linux-init
diff --git a/src/init/deps-exe/s6-poweroff b/src/init/deps-exe/s6-poweroff
deleted file mode 100644
index e7187fe..0000000
--- a/src/init/deps-exe/s6-poweroff
+++ /dev/null
@@ -1 +0,0 @@
--lskarnet
diff --git a/src/init/deps-exe/s6-reboot b/src/init/deps-exe/s6-reboot
deleted file mode 100644
index e7187fe..0000000
--- a/src/init/deps-exe/s6-reboot
+++ /dev/null
@@ -1 +0,0 @@
--lskarnet
diff --git a/src/init/hpr.c b/src/init/hpr.c
deleted file mode 100644
index db80ba2..0000000
--- a/src/init/hpr.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/* ISC license. */
-
-#include <skalibs/sysdeps.h>
-#include <skalibs/nonposix.h>
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/reboot.h>
-#include <skalibs/strerr2.h>
-#include <skalibs/sgetopt.h>
-#include <skalibs/sig.h>
-#include <skalibs/djbunix.h>
-
-#define USAGE PROGNAME " [ -h | -p | -r ] [ -f ]"
-
-#ifdef SKALIBS_HASNSGETPARENT
-
-#include <sys/ioctl.h>
-#include <linux/nsfs.h>
-
-static int test_in_namespace (void)
-{
-  int r ;
-  int fd = open_read("/proc/1/ns/pid") ;
-  if (fd < 0) return 0 ;
-  r = ioctl(fd, NS_GET_PARENT) ;
-  close(fd) ;
-  return r >= 0 ;
-}
-
-#else
-
- /*
-   When in doubt, always trap signals. This incurs a small race:
-   if ctrl-alt-del is pressed at the wrong time, the process will
-   exit and cause a kernel panic. But the alternatives are WAY
-   more hackish than this.
- */
-
-static int test_in_namespace (void)
-{
-  return 1 ;
-}
-
-#endif
-
-static void sigint_handler (int sig)
-{
-  (void)sig ;
-  _exit(1) ;
-}
-
-static void sighup_handler (int sig)
-{
-  (void)sig ;
-  _exit(0) ;
-}
-
-int main (int argc, char const *const *argv)
-{
-  int what = WHATDEFAULT ;
-  int force = 0 ;
-  PROG = PROGNAME ;
-
-  {
-    subgetopt_t l = SUBGETOPT_ZERO ;
-    for (;;)
-    {
-      int opt = subgetopt_r(argc, argv, "hprf", &l) ;
-      if (opt == -1) break ;
-      switch (opt)
-      {
-        case 'h' : what = 1 ; break ;
-        case 'p' : what = 2 ; break ;
-        case 'r' : what = 3 ; break ;
-        case 'f' : force = 1 ; break ;
-        default : strerr_dieusage(100, USAGE) ;
-      }
-    }
-    argc -= l.ind ; argv += l.ind ;
-  }
-
-  if (geteuid())
-  {
-    errno = EPERM ;
-    strerr_dief1sys(100, "nice try, peon") ;
-  }
-
-  if (force)
-  {
-    sync() ;
-    if (getpid() == 1)
-    {
-      if (test_in_namespace())
-      {
-        if (sig_catch(SIGINT, &sigint_handler) < 0
-         || sig_catch(SIGHUP, &sighup_handler) < 0)
-          strerr_diefu1sys(111, "catch signals") ;
-      }
-    }
-    reboot(what == 3 ? RB_AUTOBOOT : what == 2 ? RB_POWER_OFF : RB_HALT_SYSTEM) ;
-    strerr_diefu1sys(111, "reboot()") ;
-  }
-  else if (kill(1, what == 3 ? SIGINT : what == 2 ? SIGUSR1 : SIGUSR2) < 0)
-    strerr_diefu1sys(111, "signal process 1") ;
-  return 0 ;
-}
diff --git a/src/init/s6-halt.c b/src/init/s6-halt.c
deleted file mode 100644
index d758030..0000000
--- a/src/init/s6-halt.c
+++ /dev/null
@@ -1,7 +0,0 @@
-/* ISC license. */
-
-#undef PROGNAME
-#define PROGNAME "s6-halt"
-#undef WHATDEFAULT
-#define WHATDEFAULT 1
-#include "hpr.c"
diff --git a/src/init/s6-linux-init-maker.c b/src/init/s6-linux-init-maker.c
index 30866fe..48c95c6 100644
--- a/src/init/s6-linux-init-maker.c
+++ b/src/init/s6-linux-init-maker.c
@@ -16,11 +16,17 @@
 #include <skalibs/sgetopt.h>
 #include <skalibs/skamisc.h>
 
-#define USAGE "s6-linux-init-maker [ -c basedir ] [ -l tmpfsdir ] [ -b execline_bindir ] [ -u log_uid -g log_gid | -U ] [ -G early_getty_cmd ] [ -2 stage2_script ] [ -r ] [ -Z shutdownscript ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d dev_style ] [ -s env_store ] [ -e initial_envvar ... ] [ -n ] [ -q final_sleep_time ] dir"
+#include <s6/config.h>
+
+#include <s6-linux-init/config.h>
+#include "defaults.h"
+#include "initctl.h"
+
+#define USAGE "s6-linux-init-maker [ -c basedir ] [ -b execline_bindir ] [ -u log_uid -g log_gid | -U ] [ -G early_getty_cmd ] [ -r ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] dir"
 #define dieusage() strerr_dieusage(100, USAGE)
 #define dienomem() strerr_diefu1sys(111, "stralloc_catb") ;
 
-#define BANNER "\n  init created by s6-linux-init-maker\n  see http://skarnet.org/software/s6-linux-init/\n\n"
+#define UNCAUGHT_DIR "uncaught-logs"
 #define EXITCODENAME "file\\ created\\ by\\ s6-linux-init,\\ storing\\ a\\ container's\\ exit\\ code"
 
 #define CRASH_SCRIPT \
@@ -28,248 +34,177 @@
 "redirfd -w 1 /dev/console\n" \
 "fdmove -c 2 1\n" \
 "foreground { s6-echo -- " \
-"\"s6-svscan crashed. Dropping to an interactive shell.\" }\n" \
+"\"s6-svscan finished. Dropping to an interactive shell.\" }\n" \
 "/bin/sh -i\n"
 
-static char const *slashrun = "/run" ;
-static char const *robase = "/etc/s6-linux-init" ;
-static char const *init_script = "/etc/rc.init" ;
-static char const *tini_script = "/etc/rc.shutdown" ;
-static char const *bindir = "/bin" ;
-static char const *initial_path = "/usr/bin:/usr/sbin:/bin:/sbin" ;
+static char const *robase = BASEDIR ;
+static char const *bindir = BINDIR ;
+static char const *initial_path = INITPATH ;
 static char const *env_store = 0 ;
 static char const *early_getty = 0 ;
+static char const *slashdev = 0 ;
 static uid_t uncaught_logs_uid = 0 ;
 static gid_t uncaught_logs_gid = 0 ;
-static unsigned int initial_umask = 022 ;
+static unsigned int initial_umask = 0022 ;
 static unsigned int timestamp_style = 1 ;
-static unsigned int slashdev_style = 2 ;
-static unsigned int finalsleep = 2000 ;
+static unsigned int finalsleep = 3000 ;
 static int redirect_stage2 = 0 ;
-static int in_namespace = 0 ;
+static int logouthookd = 0 ;
 
-typedef int writetobuf_func_t (buffer *) ;
+typedef int writetobuf_func_t (buffer *, void *) ;
 typedef writetobuf_func_t *writetobuf_func_t_ref ;
 
-static int put_shebang (buffer *b)
+#define put_shebang(b) put_shebang_options((b), "-P")
+
+static int put_shebang_options (buffer *b, void *data)
 {
+  char *options = data ;
   return buffer_puts(b, "#!") >= 0
    && buffer_puts(b, bindir) >= 0
-   && buffer_puts(b, "/execlineb -P\n\n") >= 0 ;
+   && buffer_puts(b, "/execlineb") >= 0
+   && (!options || !options[0] || buffer_puts(b, " ") >= 0)
+   && buffer_puts(b, options) >= 0
+   && buffer_puts(b, "\n\n") >= 0 ;
 }
 
-static int early_getty_script (buffer *b)
+static int line_script (buffer *b, void *data)
 {
+  char *line = data ;
   return put_shebang(b)
-   && buffer_puts(b, early_getty) >= 0
+   && buffer_puts(b, line) >= 0
    && buffer_put(b, "\n", 1) >= 0 ;
 }
 
-static int crash_script (buffer *b)
+static int linewithargs_script (buffer *b, void *data)
+{
+  char *line = data ;
+  return put_shebang_options(b, "-S0")
+   && buffer_puts(b, line) >= 0
+   && buffer_puts(b, " $@\n") >= 0 ;
+}
+
+static int death_script (buffer *b, void *data)
 {
+  char *s = data ;
   return put_shebang(b)
-   && buffer_puts(b, CRASH_SCRIPT) >= 0 ;
+    && buffer_puts(b,
+      "redirfd -r 0 /dev/console\n"
+      "redirfd -w 1 /dev/console\n"
+      "fdmove -c 2 1\n"
+      "foreground { s6-echo -- \"s6-svscan ") >= 0
+    && buffer_puts(b, s) >= 0
+    && buffer_puts(b,
+      ". Dropping to an interactive shell.\" }\n"
+      "/bin/sh -i\n") >= 0
 }
 
-static int s6_svscan_log_script (buffer *b)
+static int s6_svscan_log_script (buffer *b, void *data)
 {
-  size_t sabase = satmp.len ;
   char fmt[UINT64_FMT] ;
-  if (!put_shebang(b)
-   || buffer_puts(b,
+  (void)data ;
+  return put_shebang(b)
+   && buffer_puts(b,
     "redirfd -w 2 /dev/console\n"
     "redirfd -w 1 /dev/null\n"
-    "redirfd -rnb 0 fifo\n"
-    "s6-applyuidgid -u ") < 0
-   || buffer_put(b, fmt, uid_fmt(fmt, uncaught_logs_uid)) < 0
-   || buffer_puts(b, " -g ") < 0
-   || buffer_put(b, fmt, gid_fmt(fmt, uncaught_logs_gid)) < 0
-   || buffer_puts(b, " --\ns6-log -bp -- ") < 0
-   || buffer_puts(b, timestamp_style & 1 ? "t " : "") < 0
-   || buffer_puts(b, timestamp_style & 2 ? "T " : "") < 0) return 0 ;
-  if (!string_quote(&satmp, slashrun, strlen(slashrun))) return 0 ;
-  if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0)
-  {
-    satmp.len = sabase ;
-    return 0 ;
-  }
-  satmp.len = sabase ;
-  if (buffer_puts(b, "/uncaught-logs\n") < 0) return 0 ;
-  return 1 ;
+    "redirfd -rnb 0 " LOGGER_FIFO "\n"
+    "s6-applyuidgid -u ") >= 0
+   && buffer_put(b, fmt, uid_fmt(fmt, uncaught_logs_uid)) >= 0
+   && buffer_puts(b, " -g ") >= 0
+   && buffer_put(b, fmt, gid_fmt(fmt, uncaught_logs_gid)) >= 0
+   && buffer_puts(b, " --\ns6-log -bpd3 -- ") >= 0
+   && buffer_puts(b, timestamp_style & 1 ? "t " : "") >= 0
+   && buffer_puts(b, timestamp_style & 2 ? "T " : "") >= 0
+   && buffer_puts(b, S6_LINUX_INIT_TMPFS "/" UNCAUGHT_DIR "\n") >= 0 ;
 }
 
-static int finish_script (buffer *b)
+static int logouthookd_script (buffer *b, void *data)
 {
-  size_t sabase = satmp.len ;
-  char fmt[UINT_FMT] ;
-  fmt[uint_fmt(fmt, finalsleep)] = 0 ;
-  if (buffer_puts(b, "#!") < 0
-   || buffer_puts(b, bindir) < 0
-   || buffer_puts(b, "/execlineb -S0\n\n") < 0
-   || !string_quote(&satmp, slashrun, strlen(slashrun))) return 0 ;
-
-  if (in_namespace)
-  {
-    if (buffer_puts(b, "ifelse { redirfd -w 2 /dev/null redirfd -r 0 ") < 0
-     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0
-     || buffer_puts(b, "/" EXITCODENAME " exit 0 }\n{ redirfd -r 0 ") < 0
-     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0
-     || buffer_puts(b, "/" EXITCODENAME " withstdinas -in CODE foreground { s6-rmrf ") < 0
-     || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0
-     || buffer_puts(b, "/" EXITCODENAME " } importas -ui CODE CODE exit ${CODE} }\n") < 0) goto err ;
-  }
-
-  if (buffer_puts(b, "cd /\nredirfd -w 2 /dev/console\nfdmove -c 1 2\nforeground { s6-svc -X -- ") < 0
-   || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
-  satmp.len = sabase ;
-  if (buffer_puts(b, "/service/s6-svscan-log }\n"
-                     "unexport ?\nwait -r -- { }\n"
-                     "foreground { s6-echo \"Syncing disks.\" }\n"
-                     "foreground { s6-sync }\n"
-                     "foreground { s6-echo \"Sending all processes the TERM signal.\" }\n"
-                     "foreground { s6-nuke -th }\n"
-                     "s6-sleep -m -- ") < 0
-   || buffer_puts(b, fmt) < 0
-   || buffer_puts(b, "\nforeground { s6-echo \"Sending all processes the KILL signal.\" }\n"
-                     "foreground { s6-nuke -k }\n"
-                     "wait { }\n"
-                     "foreground { s6-echo \"Unmounting disks.\" }\n"
-                     "foreground { s6-umount -a }\n"
-                     "foreground { s6-mount -ro remount /dev/root / }\n"
-                     "s6-${1} -f\n") < 0) return 0 ;
-  return 1 ;
- err:
-  satmp.len = sabase ;
-  return 0 ;
+  (void)data ;
+  return put_shebang(b)
+   && buffer_puts(b,
+    S6_EXTBINPREFIX "s6-ipcserver -1 -l0 -- " LOGOUTHOOKD_SOCKET "\n"
+    S6_LINUX_INIT_BINPREFIX "s6-linux-init-logouthookd\n") >= 0 ;
 }
 
-static int sig_script (buffer *b, char c)
+static int shutdownd_script (buffer *b, void *data)
 {
   size_t sabase = satmp.len ;
+  char fmt[UINT_FMT] ;
   if (!put_shebang(b)
-   || buffer_puts(b, "foreground { ") < 0
-   || !string_quote(&satmp, tini_script, strlen(tini_script))) return 0 ;
-  if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+   || buffer_puts(b, S6_LINUX_INIT_BINPREFIX "s6-linux-init-shutdownd -b ") < 0)
+   || !string_quote(&satmp, bindir, strlen(bindir))) return 0 ;
+  if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
   satmp.len = sabase ;
-  if (buffer_puts(b, " }\ns6-svscanctl -") < 0
-   || buffer_put(b, &c, 1) < 0
-   || buffer_puts(b, " -- ") < 0
-   || !string_quote(&satmp, slashrun, strlen(slashrun))) return 0 ;
-  if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
+  if (buffer_puts(b, " -c ") < 0
+   || !string_quote(&satmp, robase, strlen(robase))) return 0 ;
+  if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
   satmp.len = sabase ;
-  if (buffer_puts(b, "/service\n") < 0) return 0 ;
+  if (buffer_puts(b, " -g ") < 0
+   || buffer_puts(b, fmt, uint_fmt(fmt, finalsleep)) < 0
+   || buffer_puts(b, "\n") < 0) return 0 ;
+  (void)data ;
   return 1 ;
- err:
-  satmp.len = sabase ;
-  return 0 ;
-}
 
-static int onlyexit (buffer *b, char c)
-{
-  size_t sabase = satmp.len ;
-  if (!put_shebang(b)
-   || buffer_puts(b, "foreground { redirfd -w 1 ") < 0
-   || !string_quote(&satmp, slashrun, strlen(slashrun))
-   || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0
-   || buffer_puts(b, "/" EXITCODENAME " s6-echo -- ") < 0
-   || buffer_put(b, &c, 1) < 0
-   || buffer_puts(b, " }\ns6-svscanctl -b ") < 0
-   || buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0
-   || buffer_puts(b, "/service\n") < 0) goto err ;
-  satmp.len = sabase ;
-  return 1 ;
  err:
   satmp.len = sabase ;
-  return 0 ;
-}
-
-static int sigterm_script (buffer *b)
-{
-  return sig_script(b, 't') ;
-}
-
-static int sighup_script (buffer *b)
-{
-  return in_namespace ? onlyexit(b, '0') : sig_script(b, 'h') ;
-}
-
-static int sigquit_script (buffer *b)
-{
-  return sig_script(b, 'q') ;
+  return 0 ;    
 }
 
-static int sigint_script (buffer *b)
+static int sig_script (buffer *b, void *data)
 {
-  return in_namespace ? onlyexit(b, '1') : sig_script(b, '6') ;
-}
-
-static int sigusr1_script (buffer *b)
-{
-  return sig_script(b, '7') ;
+  char *option = data ;
+  return put_shebang(b)
+   && buffer_puts(b, S6_LINUX_INIT_BINPREFIX "s6-linux-init-shutdown -a ") >= 0
+   && buffer_puts(b, option) >= 0
+   && buffer_puts(" -- now\n") >= 0 ;
 }
 
-static int sigusr2_script (buffer *b)
+static int stage4_script (buffer *b, void *data)
 {
-  return sig_script(b, '0') ;
+  (void)data ;
 }
 
 static inline int stage1_script (buffer *b)
 {
-  size_t sabase = satmp.len, pos, pos2 ;
-  char fmt[UINT_OFMT] ;
-  if (!put_shebang(b)
-   || buffer_puts(b, bindir) < 0
-   || buffer_puts(b, "/export PATH ") < 0
-   || !string_quote(&satmp, initial_path, strlen(initial_path))) return 0 ;
-  if (buffer_put(b, satmp.s + sabase, satmp.len - sabase) < 0) goto err ;
-  satmp.len = sabase ;
-  if (buffer_put(b, "\n", 1) < 0
-   || buffer_puts(b, bindir) < 0
-   || buffer_puts(b, "/cd /\ns6-setsid -qb --\numask 0") < 0
-   || buffer_put(b, fmt, uint_ofmt(fmt, initial_umask)) < 0
-   || buffer_puts(b, "\nif { s6-echo -- ") < 0
-   || !string_quote(&satmp, BANNER, sizeof(BANNER) - 1)) return 0 ;
-  if (buffer_put(b, satmp.s, satmp.len) < 0) goto err ;
-  satmp.len = sabase ;
-  if (buffer_puts(b, " }\nif { s6-mount -nwt tmpfs -o mode=0755 tmpfs ") < 0
-   || !string_quote(&satmp, slashrun, strlen(slashrun))) return 0 ;
-  pos = satmp.len ;
-  if (buffer_put(b, satmp.s + sabase, pos - sabase) < 0
-   || buffer_puts(b, " }\nif { s6-hiercopy ") < 0
+  size_t sabase = satmp.len ;
+  if (!put_shebang_options(b, "-S0")
+   || buffer_puts(b, S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init -c ") < 0
    || !string_quote(&satmp, robase, strlen(robase))) return 0 ;
-  pos2 = satmp.len ;
-  if (buffer_put(b, satmp.s + pos, pos2 - pos) < 0
-   || buffer_puts(b, "/run-image ") < 0
-   || buffer_put(b, satmp.s + sabase, pos - sabase) < 0
-   || buffer_puts(b, " }\n") < 0) goto err ;
-  if (slashdev_style == 1)
+  if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
+  satmp.len = sabase ;
+  {
+    char fmt[UINT_OFMT] ;
+    if (buffer_puts(b, " -m 00") < 0
+     || buffer_put(b, fmt, uint_ofmt(fmt, initial_umask)) < 0) return 0 ;
+  }
+  if (redirect_stage2)
   {
-    if (buffer_puts(b, "if { s6-mount -nt devtmpfs dev /dev }\n") < 0) goto err ;
+    if (buffer_puts(b, " -r") < 0) return 0 ;
+  }
+  if (initial_path)
+  {
+    if (buffer_puts(b, " -p ") < 0
+     || !string_quote(&satmp, initial_path, strlen(initial_path))) return 0 ;
+    if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
+    satmp.len = sabase ;
   }
   if (env_store)
   {
-    size_t base = satmp.len ;
-    if (!string_quote(&satmp, env_store, strlen(env_store))) return 0 ;
-    if (buffer_puts(b, "if { unexport PATH s6-dumpenv -- ") < 0
-     || buffer_put(b, satmp.s + base, satmp.len - base) < 0
-     || buffer_puts(b, " }\n") < 0) goto err ;
-    satmp.len = base ;
+    if (buffer_puts(b, " -s ") < 0
+     || !string_quote(&satmp, env_store, strlen(env_store))) return 0 ;
+    if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
+    satmp.len = sabase ;
+  }
+  if (slashdev)
+  {
+    if (buffer_puts(b, " -d ") < 0
+     || !string_quote(&satmp, slashdev, strlen(slashdev))) return 0 ;
+    if (buffer_puts(b, satmp.s + sabase) < 0) goto err ;
+    satmp.len = sabase ;
   }
-  if (buffer_puts(b, "emptyenv -p\ns6-envdir -I -- ") < 0
-   || buffer_put(b, satmp.s + pos, pos2 - pos) < 0
-   || buffer_puts(b, "/env\nredirfd -r 0 /dev/null\nredirfd -wnb 1 ") < 0
-   || buffer_put(b, satmp.s + sabase, pos - sabase) < 0
-   || buffer_puts(b, "/service/s6-svscan-log/fifo\nbackground\n{\n  s6-setsid --\n  redirfd -w 1 ") < 0
-   || buffer_put(b, satmp.s + sabase, pos - sabase) < 0
-   || buffer_puts(b, "/service/s6-svscan-log/fifo\n  fdmove -c ") < 0
-   || buffer_puts(b, redirect_stage2 ? "2 1" : "1 2") < 0
-   || buffer_puts(b, "\n  ") < 0
-   || !string_quote(&satmp, init_script, strlen(init_script))
-   || buffer_put(b, satmp.s + pos2, satmp.len - pos2) < 0
-   || buffer_puts(b, "\n}\nunexport !\ncd ") < 0
-   || buffer_put(b, satmp.s + sabase, pos - sabase) < 0
-   || buffer_puts(b, "/service\nfdmove -c 2 1\ns6-svscan -st0\n") < 0) goto err ;
+  if (buffer_puts(b, "\n") < 0) return 0 ;
   return 1 ;
+
  err:
   satmp.len = sabase ;
   return 0 ;
@@ -307,13 +242,25 @@ static void auto_file (char const *base, char const *file, char const *s, unsign
   fn[clen] = '/' ;
   memcpy(fn + clen + 1, file, flen + 1) ;
   if (!openwritenclose_unsafe(fn, s, n)
-   || (executable && chmod(fn, 0755) < 0))
+   || chmod(fn, executable ? 0755 : 0644) == -1))
   {
     cleanup(base) ;
     strerr_diefu2sys(111, "write to ", fn) ;
   }
 }
 
+static void auto_symlink (char const *base, char const *name, char const *target)
+{
+  size_t clen = strlen(base) ;
+  size_t dlen = strlen(name) ;
+  char fn[clen + dlen + 2] ;
+  memcpy(fn, base, clen) ;
+  fn[clen] = '/' ;
+  memcpy(fn + clen + 1, name, dlen + 1) ;
+  if (symlink(target, fn) == -1)
+    strerr_diefu4sys(111, "make a symlink named ", fn, " pointing to ", target) ;
+}
+
 static void auto_fifo (char const *base, char const *fifo)
 {
   size_t baselen = strlen(base) ;
@@ -329,7 +276,7 @@ static void auto_fifo (char const *base, char const *fifo)
   }
 }
 
-static void auto_script (char const *base, char const *file, writetobuf_func_t_ref scriptf)
+static void auto_script (char const *base, char const *file, writetobuf_func_t_ref scriptf, void *data)
 {
   char buf[4096] ;
   buffer b ;
@@ -347,25 +294,40 @@ static void auto_script (char const *base, char const *file, writetobuf_func_t_r
     strerr_diefu3sys(111, "open ", fn, " for script writing") ;
   }
   buffer_init(&b, &fd_writev, fd, buf, 4096) ;
-  if (!(*scriptf)(&b) || !buffer_flush(&b))
+  if (!(*scriptf)(&b, data) || !buffer_flush(&b))
   {
     cleanup(base) ;
     strerr_diefu2sys(111, "write to ", fn) ;
   }
-  close(fd) ;
+  fd_close(fd) ;
 }
 
-static inline void make_env (char const *base, char const *modif, size_t modiflen)
+static void auto_exec (char const *base, char const *name, char const *target)
 {
-  auto_dir(base, "env", 0, 0, 0755) ;
+  if (S6_LINUX_INIT_BINPREFIX[0] == '/')
+  {
+    size_t len = strlen(target) ;
+    char fn[sizeof(S6_LINUX_INIT_BINPREFIX) + len] = S6_LINUX_INIT_BINPREFIX ;
+    memcpy(fn + sizeof(S6_LINUX_INIT_BINPREFIX - 1, len + 1, target)) ;
+    auto_symlink(base, name, fn) ;
+  }
+  else
+    auto_script(base, name, &linewithargs_script, target) ;
+}
+
+static void make_env (char const *base, char const *envname, char const *modif, size_t modiflen)
+{
+  size_t envnamelen = strlen(envname) ;
+  auto_dir(base, envname, 0, 0, 0755) ;
   while (modiflen)
   {
     size_t len = strlen(modif) ;
     size_t pos = byte_chr(modif, len, '=') ;
-    char fn[5 + pos] ;
-    memcpy(fn, "env/", 4) ;
-    memcpy(fn + 4, modif, pos) ;
-    fn[4 + pos] = 0 ;
+    char fn[envnamelen + pos + 2] ;
+    memcpy(fn, envname, envnamelen) ;
+    fn[envnamelen] = '/' ;
+    memcpy(fn + envnamelen + 1, modif, pos) ;
+    fn[envnamelen + 1 + pos] = 0 ;
     
     if (pos + 1 < len) auto_file(base, fn, modif + pos + 1, len - pos - 1, 0) ;
     else if (pos + 1 == len) auto_file(base, fn, "\n", 1, 0) ;
@@ -377,41 +339,71 @@ static inline void make_env (char const *base, char const *modif, size_t modifle
 static inline void make_image (char const *base)
 {
   auto_dir(base, "run-image", 0, 0, 0755) ;
-  auto_dir(base, "run-image/uncaught-logs", uncaught_logs_uid, uncaught_logs_gid, 02700) ;
-  auto_dir(base, "run-image/service", 0, 0, 0755) ;
-  auto_dir(base, "run-image/service/.s6-svscan", 0, 0, 0755) ;
-  auto_script(base, "run-image/service/.s6-svscan/crash", &crash_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/finish", &finish_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGTERM", &sigterm_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGHUP", &sighup_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGQUIT", &sigquit_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGINT", &sigint_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGUSR1", &sigusr1_script) ;
-  auto_script(base, "run-image/service/.s6-svscan/SIGUSR2", &sigusr2_script) ;
-  auto_dir(base, "run-image/service/s6-svscan-log", 0, 0, 0755) ;
-  auto_fifo(base, "run-image/service/s6-svscan-log/fifo") ;
-  auto_script(base, "run-image/service/s6-svscan-log/run", &s6_svscan_log_script) ;
+  auto_dir(base, "run-image/" UNCAUGHT_DIR, uncaught_logs_uid, uncaught_logs_gid, 02700) ;
+  auto_dir(base, "run-image/" SCANDIR, 0, 0, 0755) ;
+  auto_dir(base, "run-image/" SCANDIR "/.s6-svscan", 0, 0, 0755) ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/crash", &death_script, "crashed") ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/finish", &death_script, "exited") ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGTERM", &put_shebang_options, 0) ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGHUP", &put_shebang_options, 0) ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGQUIT", &put_shebang_options, 0) ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGINT", &sig_script, "-r") ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGUSR1", &sig_script, "-p") ;
+  auto_script(base, "run-image/" SCANDIR "/.s6-svscan/SIGUSR2", &sig_script, "-h") ;
+  auto_dir(base, "run-image/" SCANDIR "/" LOGGER_SERVICEDIR, 0, 0, 0755) ;
+  auto_fifo(base, "run-image/" SCANDIR "/" LOGGER_SERVICEDIR "/" LOGGER_FIFO) ;
+  auto_file(base, "run-image/" SCANDIR "/" LOGGER_SERVICEDIR "/notification-fd", "3\n", 2, 0) ;
+  auto_script(base, "run-image/" SCANDIR "/" LOGGER_SERVICEDIR "/run, &s6_svscan_log_script, 0) ;
+  auto_dir(base, "run-image/" SCANDIR "/" SHUTDOWND_SERVICEDIR, 0, 0, 0755) ;
+  auto_fifo(base, "run-image/" SCANDIR "/" SHUTDOWND_SERVICEDIR "/" SHUTDOWND_FIFO) ;
+  auto_script(base, "run-image/" SCANDIR "/" SHUTDOWND_SERVICEDIR "/run", &shutdownd_script, 0) ;
+  if (logouthookd)
+  {
+    auto_dir(base, "run-image/" SCANDIR "/" LOGOUTHOOKD_SERVICEDIR, 0, 0, 0755) ;
+    auto_file(base, "run-image/" SCANDIR "/" LOGOUTHOOKD_SERVICEDIR "/notification-fd", "1\n", 2, 0) ;
+    auto_script(base, "run-image/" SCANDIR "/" LOGOUTHOOKD_SERVICEDIR "/run", &logouthookd_script, 0) ;
+  }
   if (early_getty)
   {
-    auto_dir(base, "run-image/service/s6-linux-init-early-getty", 0, 0, 0755) ;
-    auto_script(base, "run-image/service/s6-linux-init-early-getty/run", &early_getty_script) ;
+    auto_dir(base, "run-image/" SCANDIR "/" EARLYGETTY_SERVICEDIR, 0, 0, 0755) ;
+    auto_script(base, "run-image/" SCANDIR "/" EARLYGETTY_SERVICEDIR "/run", &line_script, early_getty) ;
   }
-  auto_script(base, "init", &stage1_script) ;
+}
+
+static inline void make_scripts (char const *base)
+{
+  auto_dir(base, "scripts", 0, 0, 0755) ;
+  auto_script(base, "scripts/runlevel", &put_shebang_options, 0) ;
+  auto_script(base, "scripts/" STAGE2, &put_shebang_options, 0) ;
+  auto_script(base, "scripts/" STAGE3, &put_shebang_options, 0) ;
+}
+
+static inline void make_bins (char const *base)
+{
+  auto_dir(base, "bin", 0, 0, 0755) ;
+  auto_exec(base, "bin/halt", "s6-linux-init-halt") ;
+  auto_exec(base, "bin/reboot", "s6-linux-init-reboot") ;
+  auto_exec(base, "bin/poweroff", "s6-linux-init-poweroff") ;
+  auto_exec(base, "bin/shutdown", "s6-linux-init-shutdown") ;
+  auto_exec(base, "bin/telinit", "s6-linux-init-telinit") ;
+  auto_script(base, "bin/init", &stage1_script, 0) ;
+  auto_script(base, "bin/" STAGE4, &stage4_script, 0) ;
 }
 
 int main (int argc, char const *const *argv, char const *const *envp)
 {
+  stralloc saenv1 = STRALLOC_ZERO ;
+  stralloc saenv2 = STRALLOC_ZERO ;
   PROG = "s6-linux-init-maker" ;
   {
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      int opt = subgetopt_r(argc, argv, "c:l:b:u:g:UG:2:rZ:p:m:t:d:s:e:nq:", &l) ;
+      int opt = subgetopt_r(argc, argv, "c:b:u:g:UG:rLp:m:t:d:s:e:E:q:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
         case 'c' : robase = l.arg ; break ;
-        case 'l' : slashrun = l.arg ; break ;
         case 'b' : bindir = l.arg ; break ;
         case 'u' : if (!uint0_scan(l.arg, &uncaught_logs_uid)) dieusage() ; break ;
         case 'g' : if (!uint0_scan(l.arg, &uncaught_logs_gid)) dieusage() ; break ;
@@ -425,16 +417,15 @@ int main (int argc, char const *const *argv, char const *const *envp)
           if (!uint0_scan(x, &uncaught_logs_gid)) strerr_dieinvalid(100, "GID") ;
         }
         case 'G' : early_getty = l.arg ; break ;
-        case '2' : init_script = l.arg ; break ;
         case 'r' : redirect_stage2 = 1 ; break ;
-        case 'Z' : tini_script = l.arg ; break ;
+        case 'L' : logouthookd = 1 ; break ;
         case 'p' : initial_path = l.arg ; break ;
         case 'm' : if (!uint0_oscan(l.arg, &initial_umask)) dieusage() ; break ;
         case 't' : if (!uint0_scan(l.arg, &timestamp_style)) dieusage() ; break ;
-        case 'd' : if (!uint0_scan(l.arg, &slashdev_style)) dieusage() ; break ;
+        case 'd' : slashdev = l.arg ; break ;
         case 's' : env_store = l.arg ; break ;
-        case 'e' : if (!stralloc_catb(&satmp, l.arg, strlen(l.arg) + 1)) dienomem() ; break ;
-        case 'n' : in_namespace = 1 ; break ;
+        case 'e' : if (!stralloc_catb(&saenv1, l.arg, strlen(l.arg) + 1)) dienomem() ; break ;
+        case 'E' : if (!stralloc_catb(&saenv2, l.arg, strlen(l.arg) + 1)) dienomem() ; break ;
         case 'q' : if (!uint0_scan(l.arg, &finalsleep)) dieusage() ; break ;
         default : dieusage() ;
       }
@@ -445,24 +436,27 @@ int main (int argc, char const *const *argv, char const *const *envp)
 
   if (robase[0] != '/')
     strerr_dief3x(100, "base directory ", robase, " is not absolute") ;
-  if (slashrun[0] != '/')
-    strerr_dief3x(100, "tmpfs directory ", slashrun, " is not absolute") ;
   if (bindir[0] != '/')
     strerr_dief3x(100, "initial location for binaries ", bindir, " is not absolute") ;
   if (init_script[0] != '/')
     strerr_dief3x(100, "stage 2 script location ", init_script, " is not absolute") ;
   if (tini_script[0] != '/')
     strerr_dief3x(100, "shutdown script location ", tini_script, " is not absolute") ;
+  if (slashdev && slashdev[0] != '/')
+    strerr_dief3x(100, "devtmpfs mounting location ", slashdev, " is not absolute") ;
   if (timestamp_style > 3)
     strerr_dief1x(100, "-t timestamp_style must be 0, 1, 2 or 3") ;
-  if (slashdev_style > 2)
-    strerr_dief1x(100, "-d dev_style must be 0, 1 or 2") ;
 
+  umask(0) ;
   if (mkdir(argv[0], 0755) < 0)
     strerr_diefu2sys(111, "mkdir ", argv[0]) ;
 
-  make_env(argv[0], satmp.s, satmp.len) ;
-  satmp.len = 0 ;
-  make_image(argv[0]) ;
+  make_env(argv[0], ENVSTAGE2, saenv2.s, saenv2.len) ;
+  stralloc_free(&saenv2) ;
+  make_env(argv[0], ENVSTAGE1, saenv1.s, saenv1.len) ;
+  saenv1.len = 0 ;
+  make_image(argv[0], &saenv1) ;
+  make_scripts(argv[0]) ;
+  make_bins(argv[0]) ;
   return 0 ;
 }
diff --git a/src/init/s6-linux-init.c b/src/init/s6-linux-init.c
new file mode 100644
index 0000000..6758682
--- /dev/null
+++ b/src/init/s6-linux-init.c
@@ -0,0 +1,168 @@
+/* ISC license. */
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+
+#include <skalibs/types.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/env.h>
+#include <skalibs/djbunix.h>
+
+#include <s6/config.h>
+
+#include <s6-linux-init/config.h>
+
+#include "defaults.h"
+#include "initctl.h"
+
+#define USAGE "s6-linux-init [ -r ] [ -c basedir ] [ -p initpath ] [ -s envdumpdir ] [ -m umask ] [ -d devtmpfs ]"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+#define BANNER "\n  s6-linux-init version " S6_LINUX_INIT_VERSION "\n\n"
+
+static inline void run_stage2 (char const *basedir, char const **argv, unsigned int argc, char const *const *envp, size_t envlen, stralloc *envmodifs, int redirect)
+{
+  size_t dirlen = strlen(basedir) ;
+  char const *childargv[argc + 2] ;
+  char fn[dirlen + 1 + (sizeof(ENVSTAGE2) > sizeof(STAGE2) ? sizeof(ENVSTAGE2) : sizeof(STAGE2))] ;
+  PROG = "s6-linux-init (child)" ;
+  argv[0] = PROG ;
+  memcpy(fn, basedir, dirlen) ;
+  fn[dirlen] = '/' ;
+  memcpy(fn + dirlen + 1, ENVSTAGE2, sizeof(ENVSTAGE2)) ;
+  if (envdir(fn, envmodifs) == -1)
+    strerr_warnwu2sys("envdir ", fn) ;
+  memcpy(fn + dirlen + 1, STAGE2, sizeof(STAGE2)) ;
+  childargv[0] = fn ;
+  for (unsigned int i = 0 ; i < argc ; i++)
+    childargv[i+1] = argv[i] ;
+  childargv[argc + 1] = 0 ;
+  setsid() ;
+  fd_close(1) ;
+  if (open(LOGFIFO, O_WRONLY) != 1)  /* blocks */
+    strerr_diefu1sys(111, "open " LOGFIFO " for writing") ;
+  if (fd_copy(1 + redirect, 2 - redirect) == -1)
+    strerr_diefu1sys(111, "redirect output file descriptor") ;
+  xpathexec_r(childargv, envp, envlen, envmodifs->s, envmodifs->len) ;
+}
+
+int main (int argc, char const **argv, char const *const *envp)
+{
+  mode_t mask = 0022 ;
+  char const *basedir = BASEDIR ;
+  char const *path = INITPATH ;
+  char const *slashdev = 0 ;
+  char const *envdumpdir = 0 ;
+  stralloc envmodifs = STRALLOC_ZERO ;
+  int redirect = 0 ;
+  PROG = "s6-linux-init" ;
+
+  if (getpid() != 1)
+  {
+    argv[0] = S6_LINUX_INIT_BINPREFIX "/s6-linux-init-telinit" ;
+    pathexec_run(argv[0], argv, envp) ;
+    strerr_dieexec(111, argv[0]) ;
+  }
+
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      int opt = subgetopt_r(argc, argv, "rc:p:s:m:d:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'r' : redirect = 1 ; break ;
+        case 'c' : basedir = l.arg ; break ;
+        case 'p' : path = l.arg ; break ;
+        case 's' : envdumpdir = l.arg ; break ;
+        case 'm' : if (!uint0_oscan(l.arg, &mask)) dieusage() ; break ;
+        case 'd' : slashdev = l.arg ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+  }
+
+  allwrite(1, BANNER, sizeof(BANNER) - 1) ;
+  if (chdir("/") == -1) strerr_diefu1sys(111, "chdir to /") ;
+  umask(mask) ;
+  setpgid(0, 0) ;
+  fd_close(0) ;
+  if (slashdev)
+  {
+    fd_close(1) ;
+    fd_close(2) ;
+    if (mount("dev", slashdev, "devtmpfs", MS_NOSUID | MS_NOEXEC, "") == -1)
+    {
+      int e = errno ;
+      open("/dev/null", O_RDONLY) ;
+      open("/dev/console", O_WRONLY) ;
+      fd_copy(2, 1) ;
+      errno = e ;
+      strerr_diefu2sys(111, "mount ", slashdev) ;
+    }
+    if (open("/dev/console", O_WRONLY)
+     || fd_copy(1, 0) == -1
+     || fd_move(2, 0) == -1) return 111 ;
+  }
+  if (open("/dev/null", O_RDONLY)) strerr_diefu1sys(111, "open /dev/null") ;
+  
+  if (umount(S6_LINUX_INIT_TMPFS) == -1)
+  {
+    if (errno != EINVAL)
+      strerr_warnwu1sys("umount " S6_LINUX_INIT_TMPFS) ;
+  }
+  if (mount("tmpfs", S6_LINUX_INIT_TMPFS, "tmpfs", MS_NODEV | MS_NOSUID, "mode=0755") == -1)
+    strerr_diefu1sys(111, "mount tmpfs on " S6_LINUX_INIT_TMPFS) ;
+  {
+    size_t dirlen = strlen(basedir) ;
+    char fn[dirlen + 1 + (sizeof(RUNIMAGE) > sizeof(ENVSTAGE1) ? sizeof(RUNIMAGE) : sizeof(ENVSTAGE1))] ;
+    memcpy(fn, basedir, dirlen) ;
+    fn[dirlen] = '/' ;
+    memcpy(fn + dirlen + 1, RUNIMAGE, sizeof(RUNIMAGE)) ;
+    if (!hiercopy(fn, S6_LINUX_INIT_TMPFS))
+      strerr_diefu3sys(111, "copy ", fn, " to " S6_LINUX_INIT_TMPFS) ;
+    memcpy(fn + dirlen + 1, ENVSTAGE1, sizeof(ENVSTAGE1)) ;
+    if (envdir(fn, &envmodifs) == -1)
+      strerr_warnwu2sys("envdir ", fn) ;
+  }
+  if (envdumpdir && !env_dump(envdumpdir, 0700, envp))
+    strerr_warnwu2sys("dump kernel environment to ", envdumpdir) ;
+  {
+    int fdr = open_read(LOGFIFO) ;
+    if (fdr == -1) strerr_diefu1sys(111, "open " LOGFIFO) ;
+    fd_close(1) ;
+    if (open(LOGFIFO, O_WRONLY) != 1) strerr_diefu1sys(111, "open " LOGFIFO) ;
+    fd_close(fdr) ;
+  }
+  {
+    static char const *const newargv[5] = { S6_EXTBINPREFIX "s6-svscan", "-st0", "--", S6_LINUX_INIT_TMPFS "/" SCANDIR, 0 } ;
+    char const *newenvp[2] = { 0, 0 } ;
+    pid_t pid ;
+    size_t pathlen = path ? strlen(path) : 0 ;
+    char pathvar[6 + pathlen] ;
+    if (path)
+    {
+      if (setenv("PATH", path, 1) == -1)
+        strerr_diefu1sys(111, "set initial PATH") ;
+      memcpy(pathvar, "PATH=", 5) ;
+      memcpy(pathvar + 5, path, pathlen + 1) ;
+      newenvp[0] = pathvar ;
+    }
+    pid = fork() ;
+    if (pid == -1) strerr_diefu1sys(111, "fork") ;
+    if (!pid) run_stage2(basedir, argv, argc, newenvp, !!path, &envmodifs, redirect) ;
+    if (fd_copy(2, 1) == -1)
+      strerr_diefu1sys(111, "redirect output file descriptor") ;
+    xpathexec_r(newargv, newenvp, !!path, envmodifs.s, envmodifs.len) ;
+  }
+}
diff --git a/src/init/s6-poweroff.c b/src/init/s6-poweroff.c
deleted file mode 100644
index f9f7747..0000000
--- a/src/init/s6-poweroff.c
+++ /dev/null
@@ -1,7 +0,0 @@
-/* ISC license. */
-
-#undef PROGNAME
-#define PROGNAME "s6-poweroff"
-#undef WHATDEFAULT
-#define WHATDEFAULT 2
-#include "hpr.c"
diff --git a/src/init/s6-reboot.c b/src/init/s6-reboot.c
deleted file mode 100644
index 0bf8785..0000000
--- a/src/init/s6-reboot.c
+++ /dev/null
@@ -1,7 +0,0 @@
-/* ISC license. */
-
-#undef PROGNAME
-#define PROGNAME "s6-reboot"
-#undef WHATDEFAULT
-#define WHATDEFAULT 3
-#include "hpr.c"