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Diffstat (limited to 'src/init/s6-linux-init-maker.c')
-rw-r--r--src/init/s6-linux-init-maker.c123
1 files changed, 86 insertions, 37 deletions
diff --git a/src/init/s6-linux-init-maker.c b/src/init/s6-linux-init-maker.c
index ccf1f08..9277acd 100644
--- a/src/init/s6-linux-init-maker.c
+++ b/src/init/s6-linux-init-maker.c
@@ -28,12 +28,12 @@
#ifdef S6_LINUX_INIT_UTMPD_PATH
# include <utmps/config.h>
-# define USAGE "s6-linux-init-maker [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] [ -U utmp_user ] dir"
-# define OPTION_STRING "c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:U:"
+# define USAGE "s6-linux-init-maker [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] [ -U utmp_user ] [ -C ] [ -B ] dir"
+# define OPTION_STRING "c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:U:CB"
# define UTMPS_DIR "utmps"
#else
-# define USAGE "s6-linux-init-maker [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] dir"
-# define OPTION_STRING "c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:"
+# define USAGE "s6-linux-init-maker [ -c basedir ] [ -u log_user ] [ -G early_getty_cmd ] [ -1 ] [ -L ] [ -p initial_path ] [ -m initial_umask ] [ -t timestamp_style ] [ -d slashdev ] [ -s env_store ] [ -e initial_envvar ... ] [ -q default_grace_time ] [ -D initdefault ] [ -n | -N ] [ -f skeldir ] [ -C ] [ -B ] dir"
+# define OPTION_STRING "c:u:G:1Lp:m:t:d:s:e:E:q:D:nNf:CB"
#endif
#define dieusage() strerr_dieusage(100, USAGE)
@@ -55,6 +55,8 @@ static unsigned int finalsleep = 3000 ;
static int mounttype = 1 ;
static int console = 0 ;
static int logouthookd = 0 ;
+static int inns = 0 ;
+static int nologger = 0 ;
#ifdef S6_LINUX_INIT_UTMPD_PATH
static char const *utmp_user = "utmp" ;
@@ -89,33 +91,61 @@ static int linewithargs_script (buffer *b, char const *line)
static int hpr_script (buffer *b, char const *what)
{
return put_shebang_options(b, "-S0")
- && buffer_puts(b, S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -") >= 0
- && buffer_puts(b, what) >= 0
- && buffer_puts(b, " $@\n") >= 0 ;
+ && buffer_puts(b, S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -") >= 0
+ && buffer_puts(b, what) >= 0
+ && buffer_puts(b, " $@\n") >= 0 ;
}
static int death_script (buffer *b, char const *s)
{
return put_shebang(b)
- && buffer_puts(b,
- EXECLINE_EXTBINPREFIX "redirfd -w 1 /dev/console\n"
- EXECLINE_EXTBINPREFIX "fdmove -c 2 1\n"
- EXECLINE_EXTBINPREFIX "foreground { "
- S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-echo -- \"s6-svscan ") >= 0
- && buffer_puts(b, s) >= 0
- && buffer_puts(b,
- ". Rebooting.\" }\n"
- S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -r -f\n") >= 0 ;
+ && buffer_puts(b,
+ EXECLINE_EXTBINPREFIX "redirfd -w 2 /dev/console\n"
+ EXECLINE_EXTBINPREFIX "fdmove -c 1 2\n"
+ EXECLINE_EXTBINPREFIX "foreground { "
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-echo -- \"s6-svscan ") >= 0
+ && buffer_puts(b, s) >= 0
+ && buffer_puts(b,
+ ". Rebooting.\" }\n"
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -fr\n") >= 0 ;
+}
+
+static int container_crash_script (buffer *b, char const *data)
+{
+ (void)data ;
+ return put_shebang(b)
+ && buffer_puts(b,
+ EXECLINE_EXTBINPREFIX "foreground\n{\n "
+ EXECLINE_EXTBINPREFIX "fdmove -c 1 2\n "
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-echo -- \"s6-svscan crashed. Killing everything and exiting.\"\n}\n"
+ EXECLINE_EXTBINPREFIX "foreground { kill -9 -1 }\n"
+ EXECLINE_EXTBINPREFIX "wait { }\n"
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -fnp\n") >= 0 ;
+}
+
+static int container_exit_script (buffer *b, char const *results)
+{
+ return put_shebang_options(b, "-S0")
+ && buffer_puts(b,
+ EXECLINE_EXTBINPREFIX "ifelse -X { test $1 = halt }\n{\n "
+ S6_EXTBINPREFIX "s6-envdir -- ") >= 0
+ && buffer_puts(b, results) >= 0
+ && buffer_puts(b, "\n "
+ EXECLINE_EXTBINPREFIX "importas -D0 -- EXITCODE exitcode\n "
+ EXECLINE_EXTBINPREFIX "exit $EXITCODE\n}\n"
+ EXECLINE_EXTBINPREFIX "ifte -X\n { "
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -fnr }\n { "
+ S6_LINUX_INIT_EXTBINPREFIX "s6-linux-init-hpr -fnp }\n"
+ "test $1 = reboot\n") >= 0 ;
}
static int s6_svscan_log_script (buffer *b, char const *data)
{
size_t sabase = satmp.len ;
if (!put_shebang(b)
- || buffer_puts(b,
- EXECLINE_EXTBINPREFIX "redirfd -w 2 /dev/console\n"
- EXECLINE_EXTBINPREFIX "redirfd -w 1 /dev/") < 0
- || buffer_puts(b, console ? "console" : "null") < 0
+ || buffer_puts(b, console || inns ?
+ EXECLINE_EXTBINPREFIX "fdmove -c 1 2" :
+ EXECLINE_EXTBINPREFIX "redirfd -w 1 /dev/null") < 0
|| buffer_puts(b, "\n"
EXECLINE_EXTBINPREFIX "redirfd -rnb 0 " LOGGER_FIFO "\n"
S6_EXTBINPREFIX "s6-setuidgid ") < 0
@@ -156,6 +186,8 @@ static int shutdownd_script (buffer *b, char const *data)
satmp.len = sabase ;
if (buffer_puts(b, " -g ") < 0
|| buffer_put(b, fmt, uint_fmt(fmt, finalsleep)) < 0
+ || (inns && buffer_puts(b, " -C") < 0)
+ || (nologger && buffer_puts(b, " -B") < 0)
|| buffer_puts(b, "\n") < 0) return 0 ;
(void)data ;
return 1 ;
@@ -243,6 +275,8 @@ static inline int stage1_script (buffer *b, char const *data)
{
if (buffer_puts(b, " -N") < 0) return 0 ;
}
+ if (inns && buffer_puts(b, " -C") < 0) return 0 ;
+ if (nologger && buffer_puts(b, " -B") < 0) return 0 ;
if (buffer_puts(b, "\n") < 0) return 0 ;
(void)data ;
@@ -500,16 +534,8 @@ static inline void make_utmps (char const *base)
static inline void make_image (char const *base)
{
auto_dir(base, "run-image", 0, 0, 0755) ;
- {
- uid_t uid ;
- gid_t gid ;
- getug(base, log_user, &uid, &gid) ;
- auto_dir(base, "run-image/" UNCAUGHT_DIR, uid, gid, 02750) ;
- }
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) ;
@@ -517,18 +543,37 @@ static inline void make_image (char const *base)
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) ;
- auto_script(base, "run-image/" SCANDIR "/" LOGGER_SERVICEDIR "/run", &s6_svscan_log_script, 0) ;
+ if (!nologger)
+ {
+ uid_t uid ;
+ gid_t gid ;
+ getug(base, log_user, &uid, &gid) ;
+ auto_dir(base, "run-image/" UNCAUGHT_DIR, uid, gid, 02750) ;
+ 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) ;
+ 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) ;
- auto_dir(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR, 0, 0, 0755) ;
- auto_file(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR "/notification-fd", "3\n", 2) ;
- auto_script(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR "/run", &runleveld_script, 0) ;
+ if (inns)
+ {
+ auto_script(base, "run-image/" SCANDIR "/.s6-svscan/crash", &container_crash_script, "") ;
+ auto_script(base, "run-image/" SCANDIR "/.s6-svscan/finish", &container_exit_script, S6_LINUX_INIT_TMPFS "/" CONTAINER_RESULTS) ;
+ auto_dir(base, "run-image/" CONTAINER_RESULTS, 0, 0, 0755) ;
+ auto_file(base, "run-image/" CONTAINER_RESULTS "/exitcode", "0\n", 2) ;
+ }
+ else
+ {
+ 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_dir(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR, 0, 0, 0755) ;
+ auto_file(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR "/notification-fd", "3\n", 2) ;
+ auto_script(base, "run-image/" SCANDIR "/" RUNLEVELD_SERVICEDIR "/run", &runleveld_script, 0) ;
+ }
if (logouthookd)
{
@@ -551,7 +596,7 @@ static inline void make_image (char const *base)
static inline void make_scripts (char const *base)
{
auto_dir(base, "scripts", 0, 0, 0755) ;
- copy_script(base, "runlevel", 1) ;
+ if (!inns) copy_script(base, "runlevel", 1) ;
copy_script(base, STAGE2, 1) ;
copy_script(base, STAGE3, 1) ;
copy_script(base, STAGE4, 0) ;
@@ -565,7 +610,7 @@ static inline void make_bins (char const *base)
auto_script(base, "bin/poweroff", &hpr_script, "p") ;
auto_script(base, "bin/reboot", &hpr_script, "r") ;
auto_exec(base, "bin/shutdown", "s6-linux-init-shutdown") ;
- auto_exec(base, "bin/telinit", "s6-linux-init-telinit") ;
+ if (!inns) auto_exec(base, "bin/telinit", "s6-linux-init-telinit") ;
}
int main (int argc, char const *const *argv, char const *const *envp)
@@ -598,6 +643,8 @@ int main (int argc, char const *const *argv, char const *const *envp)
#ifdef S6_LINUX_INIT_UTMPD_PATH
case 'U' : utmp_user = l.arg ; break ;
#endif
+ case 'C' : inns = 1 ; break ;
+ case 'B' : nologger = 1 ; break ;
default : dieusage() ;
}
}
@@ -618,6 +665,8 @@ int main (int argc, char const *const *argv, char const *const *envp)
}
if (timestamp_style > 3)
strerr_dief1x(100, "-t timestamp_style must be 0, 1, 2 or 3") ;
+ if (inns && slashdev)
+ strerr_warnw1x("both -C and -d options given; are you sure your container does not come with a pre-mounted /dev?") ;
umask(0) ;
if (mkdir(argv[0], 0755) < 0)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 10:37:46 +0000