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| author | John Crispin <blogic@openwrt.org> | 2015-03-27 02:27:16 +0100 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2015-03-27 02:27:16 +0100 |
| commit | 74d835463e05e5761f6f5271e487f299f29d3f07 (patch) | |
| tree | 8aa9c0f626470b25b4564ba28dacec46d796e86d | |
| parent | e5331be64992e865cc7da0ccca8814d494930762 (diff) | |
| download | unitd-74d835463e05e5761f6f5271e487f299f29d3f07.tar unitd-74d835463e05e5761f6f5271e487f299f29d3f07.zip | |
make it optional to remount the tmpfs as ro
Signed-off-by: John Crispin <blogic@openwrt.org>
| -rw-r--r-- | jail/jail.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/jail/jail.c b/jail/jail.c index 08d5ee1..3b5587a 100644 --- a/jail/jail.c +++ b/jail/jail.c @@ -43,7 +43,7 @@ #include <libubox/uloop.h> #define STACK_SIZE (1024 * 1024) -#define OPT_ARGS "P:S:n:r:w:psuld" +#define OPT_ARGS "P:S:n:r:w:psuldo" struct extra { struct list_head list; @@ -289,6 +289,7 @@ static int spawn_child(void *arg) char **argv = arg; int argc = 0, ch; char *mpoint; + int ronly = 0; while (argv[argc]) argc++; @@ -305,6 +306,9 @@ static int spawn_child(void *arg) case 'p': procfs = 1; break; + case 'o': + ronly = 1; + break; case 's': sysfs = 1; break; @@ -331,7 +335,8 @@ static int spawn_child(void *arg) mkdir("/sys", 0755); mount("sysfs", "/sys", "sysfs", MS_NOATIME, 0); } - mount(NULL, "/", NULL, MS_RDONLY | MS_REMOUNT, 0); + if (ronly) + mount(NULL, "/", NULL, MS_RDONLY | MS_REMOUNT, 0); uloop_init(); |