release/src/router/nfs-utils/utils/statd/simu.c

   1 /*
   2  * Copyright (C) 1995, 1997-1999 Jeffrey A. Uphoff
   3  *
   4  * NSM for Linux.
   5  */
   6
   7 #ifdef HAVE_CONFIG_H
   8 #include <config.h>
   9 #endif
  10
  11 #include <arpa/inet.h>
  12
  13 #include "rpcmisc.h"
  14 #include "statd.h"
  15 #include "notlist.h"
  16
  17 extern void my_svc_exit (void);
  18
  19
  20 /*
  21  * Services SM_SIMU_CRASH requests.
  22  */
  23 void *
  24 sm_simu_crash_1_svc (void *argp, struct svc_req *rqstp)
  25 {
  26   struct sockaddr_in *sin = nfs_getrpccaller_in(rqstp->rq_xprt);
  27   static char *result = NULL;
  28   struct in_addr caller;
  29
  30   if (sin->sin_family != AF_INET) {
  31     note(N_WARNING, "Call to statd from non-AF_INET address");
  32     goto failure;
  33   }
  34
  35   caller = sin->sin_addr;
  36   if (caller.s_addr != htonl(INADDR_LOOPBACK)) {
  37     note(N_WARNING, "Call to statd from non-local host %s",
  38       inet_ntoa(caller));
  39     goto failure;
  40   }
  41
  42   if (ntohs(sin->sin_port) >= 1024) {
  43     note(N_WARNING, "Call to statd-simu-crash from unprivileged port");
  44     goto failure;
  45   }
  46
  47   note (N_WARNING, "*** SIMULATING CRASH! ***");
  48   my_svc_exit ();
  49
  50   if (rtnl)
  51     nlist_kill (&rtnl);
  52
  53  failure:
  54   return ((void *)&result);
  55 }