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authorIan Jackson <ian.jackson@eu.citrix.com>2017-09-15 18:10:44 +0100
committerIan Jackson <Ian.Jackson@eu.citrix.com>2018-04-26 16:29:51 +0100
commit2c42f1e80103cb926c0703d4c1ac1fb9c3e2c600 (patch)
tree7a70bba42c024c87a4fdc8a43c64c7bbcf462c41 /qemu-options.hx
parentf0a2171bf9f35b0430e18676a688b2c985f8917a (diff)
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os-posix: Provide new -runas <uid>:<gid> facility
This allows the caller to specify a uid and gid to use, even if there is no corresponding password entry. This will be useful in certain Xen configurations. We don't support just -runas <uid> because: (i) deprivileging without calling setgroups would be ineffective (ii) given only a uid we don't know what gid we ought to use (since uids may eppear in multiple passwd file entries with different gids). Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Daniel P. Berrange <berrange@redhat.com> CC: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx3
1 files changed, 2 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index ca4e412..5fbf966 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -3765,7 +3765,8 @@ ETEXI
#ifndef _WIN32
DEF("runas", HAS_ARG, QEMU_OPTION_runas, \
- "-runas user change to user id user just before starting the VM\n",
+ "-runas user change to user id user just before starting the VM\n" \
+ " user can be numeric uid:gid instead\n",
QEMU_ARCH_ALL)
#endif
STEXI