From 25eef8bfb91c2c57907ab79f4ba6bcd9fe0064cb Mon Sep 17 00:00:00 2001
From: Michael Larson <mike@vyatta.com>
Date: Wed, 30 Mar 2011 12:09:58 -0700
Subject: check in for Bug 6959

Add the ability to run a user defined script to determine wan load-balancing interface health

includes sample http test (scripts/http_test.pl). Configuration will look as follows:

 wan {
     interface-health eth0 {
         nexthop 10.3.0.1
         test 1 {
             test-script /tmp/http_test.pl
             type user-defined
         }
     }
     interface-health eth1 {
         nexthop 10.3.0.1
         test 1 {
             test-script /tmp/http_test.pl
             type user-defined
         }
     }

With corresponding output:

vyatta@vyatta# run show wan-load-balance
Interface:  eth0
  Status:  active
  Last Status Change:  Wed Mar 30 19:03:59 2011
  +Test:  user  Script: /tmp/http_test.pl
    Last Interface Success:  0s
    Last Interface Failure:  n/a
    # Interface Failure(s):  0

Interface:  eth1
  Status:  failed
  Last Status Change:  Wed Mar 30 19:03:59 2011
  -Test:  user  Script: /tmp/http_test.pl
    Last Interface Success:  n/a
    Last Interface Failure:  0s
    # Interface Failure(s):  52

Scripts returns 0 for success, non-zero for failure.
---
 src/lbtest_icmp.cc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/lbtest_icmp.cc')

diff --git a/src/lbtest_icmp.cc b/src/lbtest_icmp.cc
index 6393b3e..d887d53 100644
--- a/src/lbtest_icmp.cc
+++ b/src/lbtest_icmp.cc
@@ -49,11 +49,17 @@ LBTestICMP::send(LBHealth &health)
     }
   }
   
+  //set the status line to be used when the show command is invoked
+  _status_line = name() + "\t" + string("Target: ") + target;
+
   //don't have target yet...
   if (target.empty()) {
     return;
   }
-  _packet_id = ++_packet_id % 32767;
+
+  //instead of prefix to avoid this compilier warning:
+  //warning: operation on ‘LBTest::_packet_id’ may be undefined
+  _packet_id = int((_packet_id + 1) % int(32767));
   if (_debug) {
     cout << "ICMPEngine::start(): sending ping test for: " << health._interface << " for " << target << " id: " << _packet_id << endl;
   }
@@ -195,3 +201,5 @@ LBTestICMP::dump()
   sprintf(buf,"%u",_resp_time);
   return (string("target: ") + _target + ", resp_time: " + buf);
 }
+
+
-- 
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