[OpenVMPS-devel] External program: answer not being accepted

[Sean B. <se...@bo...>]

Hi,

I've having problems getting a basic external plug-in to work.

I have a simple PHP script:

while (true) {
  $fd = fopen("php://stdin", "r");

    $line=rtrim( fgets($fd, 1024) );
    if (strlen($line) > 0) {
      list($domain, $switch, $port, $lastvlan, $mac)=explode(" ", $line);
      echo("ALLOW $lastvlan\n");
      flush();  // don't know if this needed, but doesn't seem to matter
    }
  fclose($fd);
  sleep(1);                 # wait 1 secs, before retrying
}

The data arrives OK, but what I send back never seems to be sent by vmpsd,
I've tried
      echo("ALLOW $lastvlan\n\n");
      echo("ALLOW $lastvlan\n");
      echo("ALLOW $lastvlan");

but no luck.

IN vmpsd's external.c is seems to happen around here:
        write(tocli[1], str, strlen(str));
        n = readline(fromcli[0], buf, 255);
The first line seems to work fine, the second never comes back.
I added in
        vmps_log(VQP|DEBUG, ">>>> Sending: %s ", str);
before the "write" line and this works.

When I look at the code for readline() it seems to read char by char until
it hits 255 or \n. So it should work.

In syslog I see:

Nov  3 23:04:37 INOCESvmps1 vmpsd: ==================================
Nov  3 23:04:37 INOCESvmps1 vmpsd: VQP Request
Nov  3 23:04:37 INOCESvmps1 vmpsd: Unknown: 1
Nov  3 23:04:37 INOCESvmps1 vmpsd: Request Type: 1
Nov  3 23:04:37 INOCESvmps1 vmpsd: Response: 0
Nov  3 23:04:37 INOCESvmps1 vmpsd: No. Data Items: 6
Nov  3 23:04:37 INOCESvmps1 vmpsd: Sequence No.: 4660
Nov  3 23:04:37 INOCESvmps1 vmpsd: Client IP address: 193.111.222.1
Nov  3 23:04:37 INOCESvmps1 vmpsd: Port name: Fa0/17
Nov  3 23:04:37 INOCESvmps1 vmpsd: Vlan name: test
Nov  3 23:04:37 INOCESvmps1 vmpsd: Domain name: Domain 
Nov  3 23:04:37 INOCESvmps1 vmpsd: MAC address: 080020b0cb95
Nov  3 23:04:37 INOCESvmps1 vmpsd: >>>> Sending: Domain 193.111.222.1 Fa0/17
switch1 0800.20b0.cb95

My external sends back: "ALLOW test", but vmpsd never sees it arriving and
vmpsd just sits there waiting.

Any sugsestions /tips?

Thanks,

Sean