Implement gosa_ping

[mbenkmann]

From mux2...@gmail.com on March 13, 2013 18:05:08

Implement gosa_ping. This is a strange beast. I have the following logs:

FROM 127.0.0.1

gosa_ping

GOSA00:0c:29:50:a3:52 TO 172.16.2.83:20081 ( the server where 00:0c:29:50:a3:52 is registered)

gosa_ping

172.16.2.143:20081172.16.2.146:20083172.16.2.143:20081,2256 and this is where it ends of course because vts-susi doesn't know what to do. _Original issue: http://code.google.com/p/go-susi/issues/detail?id=79_

[mbenkmann]

From mux2...@gmail.com on April 26, 2013 00:01:33

API ideas:

• should be in message/gosa_ping.go
• Send_gosa_ping(addr string, freshness time.Duration, timeout time.Duration) chan time.Duration: If the last pong received from addr is not older than freshness (negative or positive, the abs() will be taken), the duration since the last pong is sent on the returned channel (negative number, never 0) and no further ping is sent. Otherwise a ping is sent to addr and the returned channel is put in a list of channels that will get the duration sent once the pong is returned (positive number, never 0). If the timeout is reached without any pong, 0 is returned unless there was a pong with the requested freshness. IOW, 0 return value means no pong was received in [now-freshness,now+timeout]. A negative value means a pong was received in [now-freshness, now]. A positive value means a pong was received in [now, now+timeout] If timeout is 0, the ping will be sent but the returned channel will always report 0.

[mbenkmann]

From mux2...@gmail.com on May 21, 2013 03:27:49

Not important. Moved to MS 6

Labels: -Milestone-4 Milestone-6

[mbenkmann]

From mux2...@gmail.com on August 08, 2013 04:02:58

GOsa uses this to determine if a system is on or off and changes the dropdown in a system based on that. See e.g. plugins/admin/systems/class_servGeneric.inc:206:

/* Assign status */ if (gosaSupportDaemon::ping($this->netConfigDNS->macAddress)){ $smarty->assign("actions", setpost( array( "halt" => ("Switch off"), "reboot" => ("Reboot"), "update" => ("Software update"), "reinstall" => ("Reinstall"), "rescan" => ("Rescan hardware"), "localboot" => _("Force local boot")))); } else { $smarty->assign("actions", setpost( array( "wakeup" => ("Wake up"), "reinstall" => ("Reinstall"), "update" => ("System update"), "localboot" => _("Force local boot")))); }

Labels: -Priority-Want Priority-Must

[mbenkmann]

From mux2...@gmail.com on August 16, 2013 04:56:08

Implemented in be51e15602d7. The chosen implementation does not use the described API. It is much simpler and does not actually wait for a client reply and instead just checks if the client port is reachable.

Status: Done