source4/torture/nbt/query.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    NBT name query testing
   5
   6    Copyright (C) Andrew Tridgell 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "events.h"
  25 #include "libcli/nbt/libnbt.h"
  26 #include "librpc/gen_ndr/ndr_nbt.h"
  27
  28 struct result_struct {
  29         int num_pass;
  30         int num_fail;
  31 };
  32
  33 static void increment_handler(struct nbt_name_request *req)
  34 {
  35         struct result_struct *v = talloc_get_type(req->async.private, struct result_struct);
  36         if (req->state != NBT_REQUEST_DONE) {
  37                 v->num_fail++;
  38         } else {
  39                 v->num_pass++;
  40         }
  41         talloc_free(req);
  42 }
  43
  44 /*
  45   benchmark simple name queries
  46 */
  47 static BOOL bench_namequery(TALLOC_CTX *mem_ctx, struct nbt_name *name, const char *address)
  48 {
  49         struct nbt_name_socket *nbtsock = nbt_name_socket_init(mem_ctx, NULL);
  50         int num_sent=0;
  51         struct result_struct *result;
  52         struct nbt_name_query io;
  53         struct timeval tv = timeval_current();
  54         BOOL ret = True;
  55         int timelimit = lp_parm_int(-1, "torture", "timelimit", 10);
  56
  57         io.in.name = *name;
  58         io.in.dest_addr = address;
  59         io.in.broadcast = False;
  60         io.in.wins_lookup = False;
  61         io.in.timeout = 1;
  62
  63         result = talloc_zero(mem_ctx, struct result_struct);
  64
  65         printf("Running for %d seconds\n", timelimit);
  66         while (timeval_elapsed(&tv) < timelimit) {
  67                 while (num_sent - (result->num_pass+result->num_fail) < 10) {
  68                         struct nbt_name_request *req;
  69                         req = nbt_name_query_send(nbtsock, &io);
  70                         if (req == NULL) {
  71                                 printf("Failed to setup request!\n");
  72                                 ret = False;
  73                                 goto failed;
  74                         }
  75                         req->async.fn = increment_handler;
  76                         req->async.private = result;
  77                         num_sent++;
  78                         if (num_sent % 1000 == 0) {
  79                                 printf("%.1f queries per second (%d failures)  \r",
  80                                        result->num_pass / timeval_elapsed(&tv),
  81                                        result->num_fail);
  82                         }
  83                 }
  84
  85                 event_loop_once(nbtsock->event_ctx);
  86         }
  87
  88         while (num_sent != (result->num_pass + result->num_fail)) {
  89                 event_loop_once(nbtsock->event_ctx);
  90         }
  91
  92         printf("%.1f queries per second (%d failures)  \n",
  93                result->num_pass / timeval_elapsed(&tv),
  94                result->num_fail);
  95
  96 failed:
  97         talloc_free(nbtsock);
  98         return ret;
  99 }
 100
 101
 102 /*
 103   benchmark how fast a server can respond to name queries
 104 */
 105 BOOL torture_bench_nbt(void)
 106 {
 107         const char *address;
 108         struct nbt_name name;
 109         TALLOC_CTX *mem_ctx = talloc_new(NULL);
 110         NTSTATUS status;
 111         BOOL ret = True;
 112
 113         name.name = lp_parm_string(-1, "torture", "host");
 114         name.type = NBT_NAME_SERVER;
 115         name.scope = NULL;
 116
 117         /* do an initial name resolution to find its IP */
 118         status = resolve_name(&name, mem_ctx, &address);
 119         if (!NT_STATUS_IS_OK(status)) {
 120                 printf("Failed to resolve %s - %s\n",
 121                        name.name, nt_errstr(status));
 122                 talloc_free(mem_ctx);
 123                 return False;
 124         }
 125
 126         ret &= bench_namequery(mem_ctx, &name, address);
 127
 128         talloc_free(mem_ctx);
 129
 130         return ret;
 131 }