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unit_util.pas
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unit_util.pas
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{ BSD 3-Clause License
Copyright (c) 2024, Alonso Cárdenas <acardenas@bsd-peru.org>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
}
unit unit_util;
{$mode ObjFPC}
{$modeswitch arrayoperators+}
{$H+}
interface
uses
Classes, SysUtils, Dialogs, FileUtil, Math, md5, process, RegExpr, Users, BaseUnix, StrUtils;
function AttachDeviceToBridge(BridgeName: String; DeviceName: String; VmName : String):Boolean;
function AddDnsmasqEntry(VmName: String; IpAddress: String; MacAddreess : String):Boolean;
function CheckBhyveSupport():Boolean;
function CheckCidrRange(Subnet: String):Boolean;
function CheckKernelModule(Module: String):Boolean;
function CheckSysctl(Name: String):String;
function CheckVmName(Name: String):Boolean;
function CheckVmRunning(Name: String):Integer;
function CheckZfsDataset(Dataset: String): Boolean;
function CheckZfsSupport():Boolean;
function ChmodDir(Path: String):Boolean;
function ChownDir(Path: String):Boolean;
function CreateDirectory(DirectoryName: String; UserName : String; DirMode : String = '700'):Boolean;
function CreateFile(FileName: String; UserName : String; FileMode : String = '600'):Boolean;
function CreateNetworkDevice(DeviceName: String; VmName : String; Mtu : String = '1500'):Boolean;
function DestroyNetworkInterface(IfName: String):Boolean;
function DestroyVirtualMachine(VmName: String):Boolean;
function ExtractCidr(Network: String): String;
function ExtractNetMask(Cidr: Integer): String;
function ExtractNumberValue(LineText: String; Suffix: String): String;
function ExtractVarName(LineText: String): String;
function ExtractVarValue(LineText: String): String;
function GenerateMacAddress(): String;
function GenerateUuid(): String;
function GetCurrentUserName(): String;
function GetFileSize(FilePath : String; SizeUnit : String = 'B'): Int64;
function GetEventDeviceList(Path : String; Pattern : String):String;
function GetNewConsoleName(VmName : String): String;
function GetNewIpAddress(Subnet : String): String;
function GetNewPciSlotNumber(VmName : String): String;
function GetNewPciSlotNumber(StringList : TStringList): String;
function GetNewPciSlotNumber(StringList : TStringList; StartSlot : Integer): String;
function GetNewAhciPortNumber(BusNumber : String; VmName : String): String;
function GetNewNetworkName(BackendType : String): String;
function GetNewNetworkName(CurrentVmName : String; CurrentVmConfig : TStringList; BackendType : String; StartValue : Integer): String;
function GetNewStorageName(DiskPath : String; IsZvol: Boolean): String;
function GetNewVmName(VmName : String): Boolean;
function GetNewVncPortNumber(): String;
function GetPciDeviceDescripcion(Device : String):String;
function GetPciDeviceList(Device : String):String;
function GetPidValue(Pattern : String): Integer;
function GetStorageSize(StoragePath : String): String;
function GetStorageType(StoragePath : String): String;
function GetZpoolList():String;
function KillPid(Pid : Integer; Signal : String = '-TERM'): Boolean;
function LoadKernelModule(Module : String):Boolean;
function RdpConnect(VmName : String; Username : String; Password : String; Width : String; Height : String):Boolean;
function RemoveDirectory(Directory: String; Recursive : Boolean):Boolean;
function RemoveFile(Path: String):Boolean;
function RemoveDnsmasqEntry(VmName: String):Boolean;
function RestartDnsmasqService(Service : String):Boolean;
function StopVirtualMachine(Pid : Integer):Boolean;
function TruncateImage(ImagePath : String; ImageSize : String):Boolean;
function VirtualMachineStart(VmName : String):Boolean;
function VncConnect(VmHost : String; VmName : String):Boolean;
function ZfsCreateDataset(ZfsPath : String):Boolean;
function ZfsCreateZvol(ZfsPath : String; ZvolSize : String; ZvolSparse : Boolean = False):Boolean;
function ZfsGetPropertyValue(ZfsPath : String; ZfsProperty : String; ZfsField : String):String;
function ZfsDestroy(ZfsPath : String; Recursive : Boolean = True; Force : Boolean = False):Boolean;
implementation
uses
unit_configuration, unit_global;
{ Private functions }
function AppStart(AppName: String; Params: TStringArray): Boolean;
var
AppProcess: TProcess;
I: Integer;
ExitStatus : Integer;
begin
Result:=False;
AppProcess := TProcess.Create(nil);
try
AppProcess.InheritHandles := False;
AppProcess.Options := [poDetached];
for I := 1 to GetEnvironmentVariableCount do
AppProcess.Environment.Add(GetEnvironmentString(I));
AppProcess.Executable:= AppName;
for I:=0 to Length(Params)-1 do
begin
AppProcess.Parameters.Add(Params[I]);
end;
try
AppProcess.Execute;
Sleep(100);
ExitStatus:=AppProcess.ExitStatus;
if (ExitStatus = -1) then
Result:=True
else
Result:=False;
except
on E: Exception do
begin
MessageDlg('Error message', 'An exception was raised: ' + E.Message, mtError, [mbOK], 0);
end;
end;
finally
AppProcess.Free;
end;
end;
function ExtractCidr(Network: String): String;
var
TmpArray : TStringArray;
begin
TmpArray:= Network.Split('/');
Result:=TmpArray[1];
end;
function ExtractIP(Network: String): String;
var
TmpArray : TStringArray;
begin
TmpArray:= Network.Split('/');
Result:=TmpArray[0];
end;
function MaxHosts(Network: String): Integer;
begin
Result:= 2**(32 - (ExtractCidr(Network).ToInteger))-2;
end;
function IpToDecimal(Network: String; Cidr: Integer): String;
var
i,j : Integer;
TmpArray : TStringArray;
IpArray : TCharArray;
Bin1, Bin2, Bin3, Bin4 : String;
DecimalNumber : String;
begin
j:=0;
DecimalNumber:=EmptyStr;
TmpArray:=ExtractIP(Network).Split('.');
Bin1:=IntToBin(TmpArray[0].ToInteger,8);
Bin2:=IntToBin(TmpArray[1].ToInteger,8);
Bin3:=IntToBin(TmpArray[2].ToInteger,8);
Bin4:=IntToBin(TmpArray[3].ToInteger,8);
IpArray:=(Bin1+Bin2+Bin3+Bin4).ToCharArray;
for i:=1 to Length(IpArray) do
begin
if i <= Cidr then
DecimalNumber:=DecimalNumber+IpArray[j]
else
DecimalNumber:=DecimalNumber+'0';
Inc(j);
end;
Result:=DecimalNumber;
end;
function BroadcastToDecimal(Subnet: String): String;
var
i,j : Integer;
IpArray : TCharArray;
Cidr : Integer;
DecimalBroadcast : String;
begin
j:=0;
DecimalBroadcast:=EmptyStr;
IpArray :=IpToDecimal(ExtractIP(Subnet), ExtractCidr(Subnet).ToInteger).ToCharArray;
Cidr:= ExtractCidr(Subnet).ToInteger;
for i:=1 to Length(IpArray) do
begin
if i <= Cidr then
DecimalBroadcast:=DecimalBroadcast+IpArray[j]
else
DecimalBroadcast:=DecimalBroadcast+'1';
Inc(j);
end;
Result:=DecimalBroadcast;
end;
function BinToDec(Input: String): Integer;
var
i,j : Integer;
IpArray : TCharArray;
DecimalNumber : Integer;
begin
DecimalNumber:=0;
if Input.ToInteger > 0 then
begin
j:=7;
IpArray:=Input.ToCharArray;
for i:=0 to 7 do
begin
if (IpArray[i] = '1') then
begin
DecimalNumber:=DecimalNumber+(2**j);
end;
Dec(j);
end;
end;
Result:=DecimalNumber;
end;
function DecimalToIP(Input: String): String;
var
i,j : Integer;
IpArray : TCharArray;
IpAddress : String;
DotChar : String;
DecimalNumber : String;
begin;
j:=1;
IpArray:=Input.ToCharArray;
DecimalNumber:=EmptyStr;
IpAddress:=EmptyStr;
DotChar:='.';
for i:=0 to Length(IpArray)-1 do
begin
DecimalNumber:=DecimalNumber+IpArray[i];
if j < 8 then
begin
Inc(j);
end
else
begin
if i > 24 then
DotChar:=EmptyStr;
IpAddress:=IpAddress+IntToStr(BinToDec(DecimalNumber))+DotChar;
DecimalNumber:=EmptyStr;
j:=1;
end;
end;
Result:=IpAddress;
end;
function ExtractNetMask(Cidr: Integer): String;
var
i : Integer;
Netmask : String;
begin
Netmask:=EmptyStr;
for i:=1 to 32 do
begin
if i <= Cidr then
Netmask:=Netmask+'1'
else
Netmask:=Netmask+'0';
end;
Result:=DecimalToIP(Netmask);
end;
function FirstIpAddress(Network: String): String;
var
NetworkArray : TStringArray;
Oct : Integer;
begin
NetworkArray:=Network.Split('.');
Oct:=NetworkArray[3].ToInteger+1;
Result:=NetworkArray[0]+'.'+NetworkArray[1]+'.'+NetworkArray[2]+'.'+Oct.ToString;
end;
function LastIpAddress(Broadcast: String): String;
var
BroadcastArray : TStringArray;
Oct : Integer;
begin
BroadcastArray:=Broadcast.Split('.');
Oct:=BroadcastArray[3].ToInteger-1;
Result:=BroadcastArray[0]+'.'+BroadcastArray[1]+'.'+BroadcastArray[2]+'.'+Oct.ToString;
end;
function CheckValidIpAddress(IpAddress: String; Subnet: String): Boolean;
var
TmpArray : TStringArray;
FirstIp: TStringArray;
LasttIp: TStringArray;
Oct1, Oct2, Oct3, Oct4 : Boolean;
begin
Result:=False;
oct1:=False;
oct2:=False;
oct3:=False;
oct4:=False;
TmpArray:=IpAddress.Split('.');
FirstIp:=FirstIpAddress(DecimalToIP(IpToDecimal(ExtractIP(Subnet), ExtractCidr(Subnet).ToInteger))).Split('.');
LasttIp:=LastIpAddress(DecimalToIP(BroadcastToDecimal(Subnet))).Split('.');
if((TmpArray[0].ToInteger >= FirstIp[0].ToInteger) AND (TmpArray[0].ToInteger <= LasttIp[0].ToInteger)) then
Oct1:=True;
if((TmpArray[1].ToInteger >= FirstIp[1].ToInteger) AND (TmpArray[1].ToInteger <= LasttIp[1].ToInteger)) then
Oct2:=True;
if((TmpArray[2].ToInteger >= FirstIp[2].ToInteger) AND (TmpArray[2].ToInteger <= LasttIp[2].ToInteger)) then
Oct3:=True;
if((TmpArray[3].ToInteger >= FirstIp[3].ToInteger) AND (TmpArray[3].ToInteger <= LasttIp[3].ToInteger)) then
Oct4:=True;
if Oct1 AND Oct2 AND Oct3 AND Oct4 then
Result:=True;
end;
function GetNewIpAddress(Subnet : String): String;
var
i : Integer;
ConfigurationFile : ConfigurationClass;
Directories : TStringList;
IpArray : TStringArray;
IpAddress : String;
IpAddressValueList : TStringList;
Oct1 : Integer;
Oct2 : Integer;
Oct3 : Integer;
Oct4 : Integer;
begin
Result:=EmptyStr;
IpAddressValueList:=TStringList.Create;
Directories:=FindAllDirectories(VmPath, False);
Directories.Sorted:=True;
for i:=0 to Directories.Count-1 do
begin
if FileExists(Directories[i]+'/bhyve_config.conf') and FileExists(Directories[i]+'/'+ExtractFileName(Directories[i])+'.conf') then
begin
ConfigurationFile:=ConfigurationClass.Create(Directories[i]+'/'+ExtractFileName(Directories[i])+'.conf');
IpAddress:=ConfigurationFile.GetOption('general', 'ipaddress', '');
if (IpAddress <> EmptyStr) and (CheckValidIpAddress(IpAddress, GetSubnet)) then
IpAddressValueList.Add(IpAddress);
ConfigurationFile.Free;
end;
end;
IpArray:=FirstIpAddress(DecimalToIP(IpToDecimal(ExtractIP(Subnet), ExtractCidr(Subnet).ToInteger))).Split('.');
Oct1:=IpArray[0].ToInteger;
Oct2:=IpArray[1].ToInteger;
Oct3:=IpArray[2].ToInteger;
Oct4:=IpArray[3].ToInteger+1;
for i:=2 to MaxHosts(Subnet) do
begin
if Oct4 <= 255 then
begin
IpAddress:=Oct1.ToString+'.'+Oct2.ToString+'.'+Oct3.ToString+'.'+Oct4.ToString;
Inc(Oct4);
end
else if Oct3 <= 255 then
begin
Oct4:=1;
Inc(Oct3);
IpAddress:=Oct1.ToString+'.'+Oct2.ToString+'.'+Oct3.ToString+'.'+Oct4.ToString;
end
else if Oct2 <= 255 then
begin
Oct3:=1;
Inc(Oct2);
IpAddress:=Oct1.ToString+'.'+Oct2.ToString+'.'+Oct3.ToString+'.'+Oct4.ToString;
end
else if Oct1 <= 255 then
begin
Oct2:=1;
Inc(Oct1);
IpAddress:=Oct1.ToString+'.'+Oct2.ToString+'.'+Oct3.ToString+'.'+Oct4.ToString;
end;
if (IpAddressValueList.IndexOf(IpAddress) = -1) then
begin
Result:=IpAddress;
Break;
end;
end;
IpAddressValueList.Free;
Directories.Free;
end;
function GetPatternValueFromStringList(Pattern: String; StartValue : Integer; StringList: TStringList
): String;
var
TmpList : TStringList;
PatternValueList : TStringList;
RegexObj: TRegExpr;
PatternValue : String;
flag : Boolean;
c,i:Integer;
begin
TmpList:=TStringList.Create;
PatternValueList:=TStringList.Create;
RegexObj := TRegExpr.Create;
RegexObj.Expression := Pattern;
PatternValue:=EmptyStr;
for i:=StringList.Count-1 downto 0 do
begin
if (StringList[i].Contains('#')) then
begin
StringList.Delete(i);
end;
end;
TmpList.Text:=StringList.Text;
if RegexObj.Exec(TmpList.Text) then
begin
repeat
PatternValueList.Add(RegexObj.Match[1]);
until not RegexObj.ExecNext;
end;
PatternValueList.Sorted:=True;
flag:=True;
c:=StartValue;
while(flag) do
begin
if (PatternValueList.IndexOf(c.ToString) = -1) then
begin
PatternValue:=c.ToString;
flag:=False;
end;
Inc(c);
end;
RegexObj.Free;
TmpList.Free;
PatternValueList.Free;
Result:=PatternValue;
end;
function GetPatternValueFromAllConfigFiles(Pattern: String; StartValue : Integer): String;
var
Directories : TStringList;
VirtualMachineConfigFile : TStringList;
PatternValueList : TStringList;
RegexObj: TRegExpr;
PatternValue : String;
flag : Boolean;
c:Integer;
i,j : Integer;
begin
VirtualMachineConfigFile:=TStringList.Create;
PatternValueList:=TStringList.Create;
RegexObj := TRegExpr.Create;
RegexObj.Expression := Pattern;
PatternValue:=EmptyStr;
Directories:=FindAllDirectories(VmPath, False);
Directories.Sorted:=True;
for i:=0 to Directories.Count-1 do
begin
if FileExists(Directories[i]+'/bhyve_config.conf') and FileExists(Directories[i]+'/'+ExtractFileName(Directories[i])+'.conf') then
begin
VirtualMachineConfigFile.LoadFromFile(Directories[i]+'/bhyve_config.conf');
for j:=VirtualMachineConfigFile.Count-1 downto 0 do
begin
if (VirtualMachineConfigFile[j].Contains('#')) then
begin
VirtualMachineConfigFile.Delete(j);
end;
end;
if RegexObj.Exec(VirtualMachineConfigFile.Text) then
begin
repeat
PatternValueList.Add(RegexObj.Match[1]);
until not RegexObj.ExecNext;
end;
end;
end;
PatternValueList.Sorted:=True;
flag:=True;
c:=StartValue;
while(flag) do
begin
if (PatternValueList.IndexOf(c.ToString) = -1) then
begin
PatternValue:=c.ToString;
flag:=False;
end;
Inc(c);
end;
RegexObj.Free;
VirtualMachineConfigFile.Free;
PatternValueList.Free;
Directories.Free;
Result:=PatternValue;
end;
function GetPatternValueFromAllConfigFiles(Pattern: String;
CurrentVmName: String; CurrentVmConfig: TStringList; StartValue: Integer
): String;
var
Directories : TStringList;
VirtualMachineConfigFile : TStringList;
PatternValueList : TStringList;
RegexObj: TRegExpr;
PatternValue : String;
flag : Boolean;
c:Integer;
i,j : Integer;
begin
VirtualMachineConfigFile:=TStringList.Create;
PatternValueList:=TStringList.Create;
RegexObj := TRegExpr.Create;
RegexObj.Expression := Pattern;
PatternValue:=EmptyStr;
Directories:=FindAllDirectories(VmPath, False);
Directories.Sorted:=True;
for i:=0 to Directories.Count-1 do
begin
if FileExists(Directories[i]+'/bhyve_config.conf') and FileExists(Directories[i]+'/'+ExtractFileName(Directories[i])+'.conf') and (CurrentVmName <> Directories[i]) then
begin
VirtualMachineConfigFile.LoadFromFile(Directories[i]+'/bhyve_config.conf');
for j:=VirtualMachineConfigFile.Count-1 downto 0 do
begin
if (VirtualMachineConfigFile[j].Contains('#')) then
begin
VirtualMachineConfigFile.Delete(j);
end;
end;
if RegexObj.Exec(VirtualMachineConfigFile.Text) then
begin
repeat
PatternValueList.Add(RegexObj.Match[1]);
until not RegexObj.ExecNext;
end;
end;
end;
if RegexObj.Exec(CurrentVmConfig.Text) then
begin
repeat
PatternValueList.Add(RegexObj.Match[1]);
until not RegexObj.ExecNext;
end;
PatternValueList.Sorted:=True;
flag:=True;
c:=StartValue;
while(flag) do
begin
if (PatternValueList.IndexOf(c.ToString) = -1) then
begin
PatternValue:=c.ToString;
flag:=False;
end;
Inc(c);
end;
RegexObj.Free;
VirtualMachineConfigFile.Free;
PatternValueList.Free;
Directories.Free;
Result:=PatternValue;
end;
function GetPatternValueFromConfigFile(Pattern: String; VmName: String
): String;
var
VirtualMachineConfigFile : TStringList;
PatternValueList : TStringList;
RegexObj: TRegExpr;
PatternValue : String;
flag : Boolean;
c,i:Integer;
begin
VirtualMachineConfigFile:=TStringList.Create;
PatternValueList:=TStringList.Create;
RegexObj := TRegExpr.Create;
RegexObj.Expression := Pattern;
PatternValue:=EmptyStr;
if FileExists(VmPath+'/'+VmName+'/bhyve_config.conf') then
begin
VirtualMachineConfigFile.LoadFromFile(VmPath+'/'+VmName+'/bhyve_config.conf');
for i:=VirtualMachineConfigFile.Count-1 downto 0 do
begin
if (VirtualMachineConfigFile[i].Contains('#')) then
begin
VirtualMachineConfigFile.Delete(i);
end;
end;
if RegexObj.Exec(VirtualMachineConfigFile.Text) then
begin
repeat
PatternValueList.Add(RegexObj.Match[1]);
until not RegexObj.ExecNext;
end;
end;
PatternValueList.Sorted:=True;
flag:=True;
c:=0;
while(flag) do
begin
if (PatternValueList.IndexOf(c.ToString) = -1) then
begin
PatternValue:=c.ToString;
flag:=False;
end;
Inc(c);
end;
RegexObj.Free;
VirtualMachineConfigFile.Free;
PatternValueList.Free;
Result:=PatternValue;
end;
{ Public functions }
function AttachDeviceToBridge(BridgeName: String; DeviceName: String;
VmName: String): Boolean;
var
root_cmd : String;
ifconfig_cmd : String;
output : String;
status : Boolean;
parameters : TStringArray;
begin
Result:=False;
root_cmd:=SudoCmd;
ifconfig_cmd:=IfconfigCmd;
if UseSudo = 'no' then
root_cmd:=DoasCmd;
parameters:=[ifconfig_cmd, BridgeName, 'addm', DeviceName];
if FileExists(ifconfig_cmd) and FileExists(root_cmd) then
begin
status:=RunCommand(root_cmd, parameters, output, [poStderrToOutPut]);
if status then
Result:=status
else
begin
Write(output);
end;
end;
end;
function AddDnsmasqEntry(VmName: String; IpAddress: String; MacAddreess: String
): Boolean;
var
FilePath : TStringList;
ConfigFile : String;
begin
Result:=False;
FilePath:=TStringList.Create;
ConfigFile:=DnsmasqDirectory+'/'+VmName+'.conf';
if not FileExists(ConfigFile) then
CreateFile(ConfigFile, GetCurrentUserName(), '660');
try
FilePath.LoadFromFile(ConfigFile);
if FilePath.IndexOf('dhcp-host='+MacAddreess+','+VmName+','+IpAddress+',5m') = -1 then
begin
FilePath.Values['dhcp-host']:=MacAddreess+','+VmName+','+IpAddress+',5m';
FilePath.SaveToFile(ConfigFile);
RestartDnsmasqService('dnsmasq');
end;
except
MessageDlg('Error message', 'Error saving data to '+ConfigFile+' file', mtError, [mbOK], 0);
end;
FilePath.Free;
end;
function CheckBhyveSupport(): Boolean;
begin
Result:=False;
if (CheckSysctl('hw.vmm.vmx.initialized') = '1') and (CheckSysctl('hw.vmm.vmx.cap.unrestricted_guest') = '1') then
begin
Result:=True;
end;
end;
function CheckCidrRange(Subnet: String): Boolean;
var
RegText: TRegExpr;
begin
Result:=False;
RegText := TRegExpr.Create('^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\/([1-3][0-2]$|[0-2][0-9]$|0?[0-9]$)$');
if RegText.Exec(Subnet) then
begin
Result:=True;
end;
RegText.Free
end;
function CheckKernelModule(Module: String): Boolean;
var
kldstat_cmd : String;
output : String;
status : Boolean;
begin
Result:=False;
kldstat_cmd:=KldstatCmd;
if FileExists(kldstat_cmd) then
begin
status:=RunCommand(kldstat_cmd, ['-q', '-m', module], output, [poStderrToOutPut, poUsePipes]);
if status then
begin
Result:=status
end
else
begin
Write(output);
end;
end;
end;
function CheckSysctl(Name: String): String;
var
sysctl_cmd : String;
output : String;
status : Boolean;
begin
Result:=EmptyStr;
sysctl_cmd:=SysctlCmd;
if FileExists(sysctl_cmd) then
begin
status:=RunCommand(sysctl_cmd, ['-n',Name], output, [poStderrToOutPut]);
if status then
Result:=output
else
Write(output);
end;
end;
function CheckVmName(Name: String): Boolean;
var
RegText: TRegExpr;
begin
Result:=False;
RegText := TRegExpr.Create('^[a-z0-9_-]{0,229}$');
// RegText := TRegExpr.Create('^[a-z0-9][.a-z0-9_-]{0,229}[a-z0-9]$');
if RegText.Exec(Name) then
begin
Result:=True;
end;
RegText.Free
end;
function CheckVmRunning(Name: String): Integer;
var
PidNumber : Integer;
begin
Result:=-1;
PidNumber:=GetPidValue('^'+BhyveCmd+' -k '+VmPath+'/'+Name+'/bhyve_config.conf');
if PidNumber > 0 then
Result:=PidNumber
else
begin
PidNumber:= GetPidValue('^bhyve: '+Name);
if PidNumber > 0 then
Result:=PidNumber;
end;
end;
function CheckZfsDataset(Dataset: String): Boolean;
var
zfs_cmd : String;
output : String;
status : Boolean;
begin
Result:=False;
zfs_cmd:=ZfsCmd;
if FileExists(zfs_cmd) then
begin
status:=RunCommand(zfs_cmd, ['list','-H','-o','name', Dataset], output, [poStderrToOutPut, poUsePipes]);
if status then
Result:=status
else
Write(output);
end;
end;
function CheckZfsSupport(): Boolean;
begin
Result:=False;
if (CheckKernelModule('zfs')) and (CheckZfsDataset(ZfsZpool))then
begin
Result:=True;
end;
end;
function ChownDir(Path: String): Boolean;
var
root_cmd : String;
chown_cmd : String;
output : String;
status : Boolean;
parameters : TStringArray;
begin
Result:=False;
root_cmd:=SudoCmd;
chown_cmd:=ChownCmd;
if UseSudo = 'no' then
root_cmd:=DoasCmd;
parameters:=[chown_cmd, GetCurrentUserName()+':', Path];
if FileExists(chown_cmd) and FileExists(root_cmd) then
begin
status:=RunCommand(root_cmd, parameters, output, [poStderrToOutPut]);
if status then
Result:=status
else
begin
Write(output);
end;
end;
end;
function ChmodDir(Path: String): Boolean;
var
root_cmd : String;
chmod_cmd : String;
output : String;
status : Boolean;
parameters : TStringArray;
begin
Result:=False;
root_cmd:=SudoCmd;
chmod_cmd:=ChmodCmd;
if UseSudo = 'no' then
root_cmd:=DoasCmd;
parameters:=[chmod_cmd, '750', Path];
if FileExists(chmod_cmd) and FileExists(root_cmd) then
begin
status:=RunCommand(root_cmd, parameters, output, [poStderrToOutPut]);
if status then
Result:=status
else
begin
Write(output);
end;
end;
end;
function CreateDirectory(DirectoryName: String; UserName: String; DirMode : String = '700'): Boolean;
var
root_cmd : String;
install_cmd : String;
output : String;
status : Boolean;
parameters : TStringArray;
begin
Result:=False;
root_cmd:=SudoCmd;
install_cmd:=InstallCmd;
if UseSudo = 'no' then
root_cmd:=DoasCmd;
parameters:=[install_cmd, '-d', '-m', DirMode, '-o', UserName, DirectoryName];
if FileExists(install_cmd) and FileExists(root_cmd) then
begin
status:=RunCommand(root_cmd, parameters, output, [poStderrToOutPut]);
if status then
Result:=status
else
Write(output);
end;
end;
function CreateFile(FileName: String; UserName: String; FileMode : String = '600'): Boolean;
var
install_cmd : String;
output : String;
status : Boolean;
begin
Result:=False;