internal IEnumerable <NetworkShareInfo> GetSharesWithSecurity()
{
IntPtr zero = IntPtr.Zero;
IntPtr bufptr;
uint entriesread;
uint totalentries;
uint num1 = NetworkShareAdapter.NetShareEnum((string)null, Environment.OSVersion.IsWindows2008OrLater() ? 503U : 502U, out bufptr, 4294967294U, out entriesread, out totalentries, ref zero);
if ((int)num1 != 0)
{
throw new Win32Exception((int)num1, string.Format("Error getting shares: {0}", (object)num1));
}
IList <NetworkShareInfo> networkShareInfoList = (IList <NetworkShareInfo>) new List <NetworkShareInfo>();
try
{
NetworkShareAdapter._tracer.TraceInformation("Found {0} shares", (object)entriesread);
for (int index = 0; (long)entriesread > (long)index; ++index)
{
NetworkShareAdapter.ShareInfoAdapter share = new NetworkShareAdapter.ShareInfoAdapter(bufptr, index, Environment.OSVersion);
NetworkShareAdapter._tracer.TraceInformation("Enumerating share {0}", (object)share.netname);
networkShareInfoList.Add(new NetworkShareInfo(share.netname, (int)share.type, share.path, this.GetAces(share), 0 > (int)share.max_uses ? new int?() : new int?((int)share.max_uses), share.servername));
}
}
finally
{
int num2 = (int)NetworkShareAdapter.NetApiBufferFree(bufptr);
}
return((IEnumerable <NetworkShareInfo>)networkShareInfoList);
}
private IEnumerable <Ace> GetAces(NetworkShareAdapter.ShareInfoAdapter share)
{
IntPtr zero = IntPtr.Zero;
try
{
if (!NetworkShareAdapter.IsValidSecurityDescriptor(share.security_descriptor))
{
NetworkShareAdapter._tracer.TraceInformation("Invalid security descriptor for share {0}", (object)share.netname);
return((IEnumerable <Ace>)null);
}
bool lpbDaclPresent;
bool lpbDaclDefaulted;
if (!NetworkShareAdapter.GetSecurityDescriptorDacl(share.security_descriptor, out lpbDaclPresent, ref zero, out lpbDaclDefaulted))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), string.Format("Error getting DACL for share {0}", (object)share.netname));
}
}
catch (Win32Exception ex)
{
NetworkShareAdapter._tracer.TraceInformation("Unable to obtain DACL for share {0}: {1}", (object)share.netname, (object)ex);
return((IEnumerable <Ace>)null);
}
IList <Ace> aceList = (IList <Ace>) new List <Ace>();
if (IntPtr.Zero == zero)
{
NetworkShareAdapter._tracer.TraceInformation("Security descriptor does not contain a DACL");
return((IEnumerable <Ace>)aceList);
}
NetworkShareAdapter.ACL structure1 = (NetworkShareAdapter.ACL)Marshal.PtrToStructure(zero, typeof(NetworkShareAdapter.ACL));
NetworkShareAdapter._tracer.TraceInformation("ACE count: {0}", (object)structure1.AceCount);
for (uint dwAceIndex = 0; (uint)structure1.AceCount > dwAceIndex; ++dwAceIndex)
{
NetworkShareAdapter._tracer.TraceInformation("Iterating ACE: {0}", (object)dwAceIndex);
try
{
IntPtr pAce;
if (!NetworkShareAdapter.GetAce(zero, dwAceIndex, out pAce))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), string.Format("Error getting ACE for share {0}", (object)share.netname));
}
NetworkShareAdapter.ACE structure2 = (NetworkShareAdapter.ACE)Marshal.PtrToStructure(pAce, typeof(NetworkShareAdapter.ACE));
IntPtr num = new IntPtr(pAce.ToInt64() + Marshal.OffsetOf(typeof(NetworkShareAdapter.ACE), "SidStart").ToInt64());
uint cchName = 0;
uint cchReferencedDomainName = 0;
StringBuilder lpName = new StringBuilder((int)cchName);
StringBuilder lpReferencedDomainName = new StringBuilder((int)cchReferencedDomainName);
NetworkShareAdapter.SID_NAME_USE peUse;
if (NetworkShareAdapter.LookupAccountSid((string)null, num, (StringBuilder)null, ref cchName, (StringBuilder)null, ref cchReferencedDomainName, out peUse) || 122L == (long)Marshal.GetLastWin32Error() || 203L == (long)Marshal.GetLastWin32Error())
{
lpName.EnsureCapacity((int)cchName);
lpReferencedDomainName.EnsureCapacity((int)cchReferencedDomainName);
if (!NetworkShareAdapter.LookupAccountSid((string)null, num, lpName, ref cchName, lpReferencedDomainName, ref cchReferencedDomainName, out peUse))
{
NetworkShareAdapter._tracer.TraceInformation("Unable to lookup account name for SID {0}: {1}", (object)new SecurityIdentifier(num), (object)Marshal.GetLastWin32Error());
}
}
else
{
NetworkShareAdapter._tracer.TraceInformation("Unable to determine account name capacity for SID {0}: {1}", (object)new SecurityIdentifier(num), (object)Marshal.GetLastWin32Error());
}
NetworkShareAdapter._tracer.TraceInformation("Share {0}: ACE type: {1}, flags: {2}, mask: {3}, user: {4}\\{5}, server: {6}", (object)share.netname, (object)structure2.Header.AceType, (object)structure2.Header.AceFlags, (object)structure2.Mask, (object)lpReferencedDomainName.ToString(), (object)(lpName.Length == 0 ? new SecurityIdentifier(num).ToString() : lpName.ToString()), (object)share.servername);
uint lengthSid = NetworkShareAdapter.GetLengthSid(num);
byte[] destination = new byte[(int)lengthSid];
Marshal.Copy(num, destination, 0, (int)lengthSid);
aceList.Add(new Ace()
{
accessMask = (int)structure2.Mask,
aceFlags = (AceFlags)structure2.Header.AceFlags,
aceType = (AceType)structure2.Header.AceType,
domain = lpReferencedDomainName.Length == 0 ? (string)null : lpReferencedDomainName.ToString(),
name = lpName.Length == 0 ? (string)null : lpName.ToString(),
sid = destination
});
}
catch (Win32Exception ex)
{
NetworkShareAdapter._tracer.TraceInformation("Unable to obtain ACE for share {0}: {1}", (object)share.netname, (object)ex);
aceList.Add((Ace)null);
}
}
return((IEnumerable <Ace>)aceList);
}