rpc.statd: eliminate --secure_statd

[nfs-utils.git] / utils / statd / simu.c

diff --git a/utils/statd/simu.c b/utils/statd/simu.c
index 9d685adc3da3b268408954451e4298e9b2fec25b..25e8badad160246f2efb600a51659deed8fb4d9e 100644 (file)
--- a/utils/statd/simu.c
+++ b/utils/statd/simu.c
@@ -7,6 +7,7 @@
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
+#include <arpa/inet.h>
 
 #include "statd.h"
 #include "notlist.h"
@@ -21,6 +22,19 @@ void *
 sm_simu_crash_1_svc (void *argp, struct svc_req *rqstp)
 {
   static char *result = NULL;
+  struct in_addr caller;
+
+  caller = svc_getcaller(rqstp->rq_xprt)->sin_addr;
+  if (caller.s_addr != htonl(INADDR_LOOPBACK)) {
+    note(N_WARNING, "Call to statd from non-local host %s",
+      inet_ntoa(caller));
+    goto failure;
+  }
+
+  if (ntohs(svc_getcaller(rqstp->rq_xprt)->sin_port) >= 1024) {
+    note(N_WARNING, "Call to statd-simu-crash from unprivileged port");
+    goto failure;
+  }
 
   note (N_WARNING, "*** SIMULATING CRASH! ***");
   my_svc_exit ();
@@ -28,5 +42,6 @@ sm_simu_crash_1_svc (void *argp, struct svc_req *rqstp)
   if (rtnl)
     nlist_kill (&rtnl);
 
+ failure:
   return ((void *)&result);
 }