internal static Contracts.StartSerialResponse StartBladeSerialSession(int bladeId, int timeoutInSecs)
{
Contracts.StartSerialResponse response = new Contracts.StartSerialResponse();
response.completionCode = Contracts.CompletionCode.Failure;
response.serialSessionToken = null;
Tracer.WriteInfo("BladeSerialSessionMetadata StartBladeSerialSession({0})", bladeId);
// If there is an already existing Blade serial session (indicated by a valid bladeId and a valid sessionToken), return failure with appropriate completion code
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken, ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken) != CompletionCode.Success)
{
Tracer.WriteError("StartBladeSerialSession({0}): Start failed because of already active session.", bladeId);
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
// Ipmi command to indicate start of serial session
// This has to be executed before Enabling comm. dev. safe mode otherwise this will fail
Ipmi.SerialMuxSwitch sms = WcsBladeFacade.SetSerialMuxSwitch((byte)bladeId, Ipmi.MuxSwtich.SwitchSystem);
// If set serial mux fails - reverse all operations
if (sms.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteError("BladeSerialSessionMetadata.StartBladeSerialSession({0}): Ipmi SetSerialMuxSwitch Failed", bladeId);
if (!CommunicationDevice.DisableSafeMode())
{
Tracer.WriteError("BladeSerialSessionMetadata.StartBladeSerialSession({0}): Unable to disable comm.dev. safe mode", bladeId);
}
// Whenever we disable safe mode, make sure that no more serial session activity may be performed - by reseting metadata
if (!BladeSerialSessionMetadata.ResetMetadata())
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession({0}): Unable to reset metadata", bladeId);
}
return(response);
}
byte[] randomNumber = new byte[8];
new System.Security.Cryptography.RNGCryptoServiceProvider().GetNonZeroBytes(randomNumber);
// Initialize Blade Serial Session MetaData - Init function does this automically
// This function acts as a serialization point - only one active thread can proceed beyond this
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken, bladeId, BitConverter.ToString(randomNumber), DateTime.Now) != CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
response.completionCode = Contracts.CompletionCode.Success;
response.serialSessionToken = BitConverter.ToString(randomNumber);
// Initializing TimeoutBladeSerialSessionInSecs with user defined session timeout
ConfigLoaded.TimeoutBladeSerialSessionInSecs = timeoutInSecs;
return(response);
}
internal static Contracts.ChassisResponse StopBladeSerialSession(int bladeId, string sessionToken, bool forceKill = false)
{
Contracts.ChassisResponse response = new Contracts.ChassisResponse();
response.completionCode = Contracts.CompletionCode.Failure;
Tracer.WriteInfo("BladeSerialSessionMetadata.Received Stopbladeserialsession({0})", bladeId);
// If there is NOT an already existing Blade serial session (indicated by a invalid bladeId and a invalid sessionToken), return failure with appropriate completion code
if (CompareAndSwapMetadata(ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken,
ConfigLoaded.InactiveBladePortId, ConfigLoaded.InactiveBladeSerialSessionToken) == CompletionCode.Success)
{
Tracer.WriteError("StopBladeSerialSession({0}): Stop failed because of no active session.", bladeId);
response.completionCode = Contracts.CompletionCode.NoActiveSerialSession;
return(response);
}
// Normal scenario when forcekill option is not true.. check for bladeid correctness and if it currently holds the serial session
if (!forceKill)
{
if (ChassisManagerUtil.CheckBladeId((byte)bladeId) != (byte)CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.ParameterOutOfRange;
return(response);
}
// If this bladeid do not currently hold the serial session, return failure
if (CompareAndSwapMetadata(bladeId, sessionToken, bladeId, sessionToken) != CompletionCode.Success)
{
response.completionCode = Contracts.CompletionCode.SerialSessionActive;
return(response);
}
}
// Communication device has to come out of safe mode - should allow IPMI commands to go to the BMC
if (!CommunicationDevice.DisableSafeMode())
{
Tracer.WriteError(
"BladeSerialSessionMetadata.StopBladeSerialSession({0}): CommunicationDevice.DisableSafeMode Failed",
bladeId);
}
Ipmi.SerialMuxSwitch rms;
// If forcekill parameter is false, then use the bladeid that is passed by the user
if (!forceKill)
{
rms = WcsBladeFacade.ResetSerialMux((byte)bladeId);
}
// If forcekill parameter is true, then use the bladeid that currently holds the serial session
else
{
rms = WcsBladeFacade.ResetSerialMux((byte)BladeSerialSessionMetadata.bladeId);
}
if (rms.CompletionCode != (byte)CompletionCode.Success)
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession({0}): Ipmi ReSetSerialMuxSwitch Failed", bladeId);
}
if (!BladeSerialSessionMetadata.ResetMetadata())
{
Tracer.WriteError("BladeSerialSessionMetadata.StopBladeSerialSession: Unable to reset metadata");
}
response.completionCode = Contracts.CompletionCode.Success;
// Resetting TimeoutBladeSerialSessionInSecs to 0 to account for default or user provided session timeout value
ConfigLoaded.TimeoutBladeSerialSessionInSecs = 0;
return(response);
}
