rgw: set dumpable flag after setuid post ff0e521

ff0e521 resolved the issue for the other daemons but not for rgw since
it calls setuid (via civetweb) after the new code sets PR_SET_DUMPABLE.
Add another prctl call before wait_shutdown.

Fixes: http://tracker.ceph.com/issues/19089
Signed-off-by: Brad Hubbard <bhubbard@redhat.com>
(cherry picked from commit bc458d39630b599e0e1ca9fe25ad7455fcffdd10)

diff --git a/src/rgw/rgw_main.cc b/src/rgw/rgw_main.cc
index 8138b8798d8c05911e41292a2958985d0e259443..bf8c521bff9f159af916b05ce9d9d3a57b8ff4c2 100644 (file)
--- a/src/rgw/rgw_main.cc
+++ b/src/rgw/rgw_main.cc
@@ -64,6 +64,10 @@
 #include "include/types.h"
 #include "common/BackTrace.h"
 
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+
 #define dout_subsys ceph_subsys_rgw
 
 using namespace std;
@@ -517,6 +521,12 @@ int main(int argc, const char **argv)
   realm_watcher.add_watcher(RGWRealmNotify::Reload, reloader);
   realm_watcher.add_watcher(RGWRealmNotify::ZonesNeedPeriod, pusher);
 
+#if defined(HAVE_SYS_PRCTL_H)
+  if (prctl(PR_SET_DUMPABLE, 1) == -1) {
+    cerr << "warning: unable to set dumpable flag: " << cpp_strerror(errno) << std::endl;
+  }
+#endif
+
   wait_shutdown();
 
   derr << "shutting down" << dendl;