Messages in this thread | | | Subject | Re: plan9 semantics on Linux - mount namespaces | From | Enrico Weigelt <> | Date | Wed, 14 Feb 2018 18:21:12 +0100 |
| |
On 14.02.2018 16:17, Richard Weinberger wrote:
> From taking a *very* quick look into busybox source, I suspect this should fix > it: > > diff --git a/util-linux/unshare.c b/util-linux/unshare.c > index 875e3f86e304..3f59cf4d27c2 100644 > --- a/util-linux/unshare.c > +++ b/util-linux/unshare.c > @@ -350,9 +350,9 @@ int unshare_main(int argc UNUSED_PARAM, char **argv) > * in that user namespace. > */ > xopen_xwrite_close(PATH_PROC_SETGROUPS, "deny"); > - sprintf(uidmap_buf, "%u 0 1", (unsigned)reuid); > + sprintf(uidmap_buf, "0 %u 1", (unsigned)reuid); > xopen_xwrite_close(PATH_PROC_UIDMAP, uidmap_buf); > - sprintf(uidmap_buf, "%u 0 1", (unsigned)regid); > + sprintf(uidmap_buf, "0 %u 1", (unsigned)regid); > xopen_xwrite_close(PATH_PROC_GIDMAP, uidmap_buf); > } else > if (setgrp_str) { >
hmm, now it works, but only when strace'ing it. that's really strange.
But still I wonder whether user_ns really solves my problem, as I don't want to create sandboxed users, but only private namespaces just like on Plan9.
--mtx
-- Enrico Weigelt, metux IT consult Free software and Linux embedded engineering info@metux.net -- +49-151-27565287
| |