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jellyfin/Emby.Common.Implementations/IO/SharpCifs/Smb/SID.cs
Luke Pulverenti 733b891f52 stub out cifs support
2017-04-01 20:36:06 -04:00

900 lines
26 KiB
C#
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// This code is derived from jcifs smb client library <jcifs at samba dot org>
// Ported by J. Arturo <webmaster at komodosoft dot net>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using SharpCifs.Dcerpc;
using SharpCifs.Dcerpc.Msrpc;
using SharpCifs.Util;
using SharpCifs.Util.Sharpen;
using Hashtable = SharpCifs.Util.Sharpen.Hashtable; //not System.Collections.Hashtable
namespace SharpCifs.Smb
{
/// <summary>
/// A Windows SID is a numeric identifier used to represent Windows
/// accounts.
/// </summary>
/// <remarks>
/// A Windows SID is a numeric identifier used to represent Windows
/// accounts. SIDs are commonly represented using a textual format such as
/// <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt> but they may
/// also be resolved to yield the name of the associated Windows account
/// such as <tt>Administrators</tt> or <tt>MYDOM\alice</tt>.
/// <p>
/// Consider the following output of <tt>examples/SidLookup.java</tt>:
/// <pre>
/// toString: S-1-5-21-4133388617-793952518-2001621813-512
/// toDisplayString: WNET\Domain Admins
/// getType: 2
/// getTypeText: Domain group
/// getDomainName: WNET
/// getAccountName: Domain Admins
/// </pre>
/// </remarks>
public class Sid : Rpc.SidT
{
public const int SidTypeUseNone = Lsarpc.SidNameUseNone;
public const int SidTypeUser = Lsarpc.SidNameUser;
public const int SidTypeDomGrp = Lsarpc.SidNameDomGrp;
public const int SidTypeDomain = Lsarpc.SidNameDomain;
public const int SidTypeAlias = Lsarpc.SidNameAlias;
public const int SidTypeWknGrp = Lsarpc.SidNameWknGrp;
public const int SidTypeDeleted = Lsarpc.SidNameDeleted;
public const int SidTypeInvalid = Lsarpc.SidNameInvalid;
public const int SidTypeUnknown = Lsarpc.SidNameUnknown;
internal static readonly string[] SidTypeNames = { "0", "User", "Domain group"
, "Domain", "Local group", "Builtin group", "Deleted", "Invalid", "Unknown" };
public const int SidFlagResolveSids = unchecked(0x0001);
public static Sid Everyone;
public static Sid CreatorOwner;
public static Sid SYSTEM;
static Sid()
{
try
{
Everyone = new Sid("S-1-1-0");
CreatorOwner = new Sid("S-1-3-0");
SYSTEM = new Sid("S-1-5-18");
}
catch (SmbException)
{
}
}
internal static Hashtable SidCache = new Hashtable();
/// <exception cref="System.IO.IOException"></exception>
internal static void ResolveSids(DcerpcHandle handle, LsaPolicyHandle policyHandle
, Sid[] sids)
{
MsrpcLookupSids rpc = new MsrpcLookupSids(policyHandle, sids);
handle.Sendrecv(rpc);
switch (rpc.Retval)
{
case 0:
case NtStatus.NtStatusNoneMapped:
case unchecked(0x00000107):
{
// NT_STATUS_SOME_NOT_MAPPED
break;
}
default:
{
throw new SmbException(rpc.Retval, false);
}
}
for (int si = 0; si < sids.Length; si++)
{
sids[si].Type = rpc.Names.Names[si].SidType;
sids[si].DomainName = null;
switch (sids[si].Type)
{
case SidTypeUser:
case SidTypeDomGrp:
case SidTypeDomain:
case SidTypeAlias:
case SidTypeWknGrp:
{
int sidIndex = rpc.Names.Names[si].SidIndex;
Rpc.Unicode_string ustr = rpc.Domains.Domains[sidIndex].Name;
sids[si].DomainName = (new UnicodeString(ustr, false)).ToString();
break;
}
}
sids[si].AcctName = (new UnicodeString(rpc.Names.Names[si].Name, false)).ToString
();
sids[si].OriginServer = null;
sids[si].OriginAuth = null;
}
}
/// <exception cref="System.IO.IOException"></exception>
internal static void ResolveSids0(string authorityServerName, NtlmPasswordAuthentication
auth, Sid[] sids)
{
DcerpcHandle handle = null;
LsaPolicyHandle policyHandle = null;
lock (SidCache)
{
try
{
handle = DcerpcHandle.GetHandle("ncacn_np:" + authorityServerName + "[\\PIPE\\lsarpc]"
, auth);
string server = authorityServerName;
int dot = server.IndexOf('.');
if (dot > 0 && char.IsDigit(server[0]) == false)
{
server = Runtime.Substring(server, 0, dot);
}
policyHandle = new LsaPolicyHandle(handle, "\\\\" + server, unchecked(0x00000800));
ResolveSids(handle, policyHandle, sids);
}
finally
{
if (handle != null)
{
if (policyHandle != null)
{
policyHandle.Close();
}
handle.Close();
}
}
}
}
/// <exception cref="System.IO.IOException"></exception>
public static void ResolveSids(string authorityServerName, NtlmPasswordAuthentication
auth, Sid[] sids, int offset, int length)
{
List<object> list = new List<object>();//new List<object>(sids.Length);
int si;
lock (SidCache)
{
for (si = 0; si < length; si++)
{
Sid sid = (Sid)SidCache.Get(sids[offset + si]);
if (sid != null)
{
sids[offset + si].Type = sid.Type;
sids[offset + si].DomainName = sid.DomainName;
sids[offset + si].AcctName = sid.AcctName;
}
else
{
list.Add(sids[offset + si]);
}
}
if (list.Count > 0)
{
//sids = (Jcifs.Smb.SID[])Sharpen.Collections.ToArray(list, new Jcifs.Smb.SID[0]);
sids = (Sid[])list.ToArray();
ResolveSids0(authorityServerName, auth, sids);
for (si = 0; si < sids.Length; si++)
{
SidCache.Put(sids[si], sids[si]);
}
}
}
}
/// <summary>Resolve an array of SIDs using a cache and at most one MSRPC request.</summary>
/// <remarks>
/// Resolve an array of SIDs using a cache and at most one MSRPC request.
/// <p>
/// This method will attempt
/// to resolve SIDs using a cache and cache the results of any SIDs that
/// required resolving with the authority. SID cache entries are currently not
/// expired because under normal circumstances SID information never changes.
/// </remarks>
/// <param name="authorityServerName">The hostname of the server that should be queried. For maximum efficiency this should be the hostname of a domain controller however a member server will work as well and a domain controller may not return names for SIDs corresponding to local accounts for which the domain controller is not an authority.
/// </param>
/// <param name="auth">The credentials that should be used to communicate with the named server. As usual, <tt>null</tt> indicates that default credentials should be used.
/// </param>
/// <param name="sids">The SIDs that should be resolved. After this function is called, the names associated with the SIDs may be queried with the <tt>toDisplayString</tt>, <tt>getDomainName</tt>, and <tt>getAccountName</tt> methods.
/// </param>
/// <exception cref="System.IO.IOException"></exception>
public static void ResolveSids(string authorityServerName, NtlmPasswordAuthentication
auth, Sid[] sids)
{
List<object> list = new List<object>();//new List<object>(sids.Length);
int si;
lock (SidCache)
{
for (si = 0; si < sids.Length; si++)
{
Sid sid = (Sid)SidCache.Get(sids[si]);
if (sid != null)
{
sids[si].Type = sid.Type;
sids[si].DomainName = sid.DomainName;
sids[si].AcctName = sid.AcctName;
}
else
{
list.Add(sids[si]);
}
}
if (list.Count > 0)
{
//sids = (Jcifs.Smb.SID[])Sharpen.Collections.ToArray(list, new Jcifs.Smb.SID[0]);
sids = (Sid[]) list.ToArray();
ResolveSids0(authorityServerName, auth, sids);
for (si = 0; si < sids.Length; si++)
{
SidCache.Put(sids[si], sids[si]);
}
}
}
}
/// <exception cref="System.IO.IOException"></exception>
public static Sid GetServerSid(string server, NtlmPasswordAuthentication
auth)
{
DcerpcHandle handle = null;
LsaPolicyHandle policyHandle = null;
Lsarpc.LsarDomainInfo info = new Lsarpc.LsarDomainInfo();
MsrpcQueryInformationPolicy rpc;
lock (SidCache)
{
try
{
handle = DcerpcHandle.GetHandle("ncacn_np:" + server + "[\\PIPE\\lsarpc]", auth);
// NetApp doesn't like the 'generic' access mask values
policyHandle = new LsaPolicyHandle(handle, null, unchecked(0x00000001));
rpc = new MsrpcQueryInformationPolicy(policyHandle, Lsarpc.PolicyInfoAccountDomain
, info);
handle.Sendrecv(rpc);
if (rpc.Retval != 0)
{
throw new SmbException(rpc.Retval, false);
}
return new Sid(info.Sid, SidTypeDomain, (new UnicodeString
(info.Name, false)).ToString(), null, false);
}
finally
{
if (handle != null)
{
if (policyHandle != null)
{
policyHandle.Close();
}
handle.Close();
}
}
}
}
public static byte[] ToByteArray(Rpc.SidT sid)
{
byte[] dst = new byte[1 + 1 + 6 + sid.SubAuthorityCount * 4];
int di = 0;
dst[di++] = sid.Revision;
dst[di++] = sid.SubAuthorityCount;
Array.Copy(sid.IdentifierAuthority, 0, dst, di, 6);
di += 6;
for (int ii = 0; ii < sid.SubAuthorityCount; ii++)
{
Encdec.Enc_uint32le(sid.SubAuthority[ii], dst, di);
di += 4;
}
return dst;
}
internal int Type;
internal string DomainName;
internal string AcctName;
internal string OriginServer;
internal NtlmPasswordAuthentication OriginAuth;
public Sid(byte[] src, int si)
{
Revision = src[si++];
SubAuthorityCount = src[si++];
IdentifierAuthority = new byte[6];
Array.Copy(src, si, IdentifierAuthority, 0, 6);
si += 6;
if (SubAuthorityCount > 100)
{
throw new RuntimeException("Invalid SID sub_authority_count");
}
SubAuthority = new int[SubAuthorityCount];
for (int i = 0; i < SubAuthorityCount; i++)
{
SubAuthority[i] = ServerMessageBlock.ReadInt4(src, si);
si += 4;
}
}
/// <summary>
/// Construct a SID from it's textual representation such as
/// <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt>.
/// </summary>
/// <remarks>
/// Construct a SID from it's textual representation such as
/// <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt>.
/// </remarks>
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
public Sid(string textual)
{
StringTokenizer st = new StringTokenizer(textual, "-");
if (st.CountTokens() < 3 || !st.NextToken().Equals("S"))
{
// need S-N-M
throw new SmbException("Bad textual SID format: " + textual);
}
Revision = byte.Parse(st.NextToken());
string tmp = st.NextToken();
long id = 0;
if (tmp.StartsWith("0x"))
{
//id = long.Parse(Sharpen.Runtime.Substring(tmp, 2), 16);
id = long.Parse(Runtime.Substring(tmp, 2));
}
else
{
id = long.Parse(tmp);
}
IdentifierAuthority = new byte[6];
for (int i = 5; id > 0; i--)
{
IdentifierAuthority[i] = unchecked((byte)(id % 256));
id >>= 8;
}
SubAuthorityCount = unchecked((byte)st.CountTokens());
if (SubAuthorityCount > 0)
{
SubAuthority = new int[SubAuthorityCount];
for (int i1 = 0; i1 < SubAuthorityCount; i1++)
{
SubAuthority[i1] = (int)(long.Parse(st.NextToken()) & unchecked(0xFFFFFFFFL));
}
}
}
/// <summary>
/// Construct a SID from a domain SID and an RID
/// (relative identifier).
/// </summary>
/// <remarks>
/// Construct a SID from a domain SID and an RID
/// (relative identifier). For example, a domain SID
/// <tt>S-1-5-21-1496946806-2192648263-3843101252</tt> and RID <tt>1029</tt> would
/// yield the SID <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt>.
/// </remarks>
public Sid(Sid domsid, int rid)
{
Revision = domsid.Revision;
IdentifierAuthority = domsid.IdentifierAuthority;
SubAuthorityCount = unchecked((byte)(domsid.SubAuthorityCount + 1));
SubAuthority = new int[SubAuthorityCount];
int i;
for (i = 0; i < domsid.SubAuthorityCount; i++)
{
SubAuthority[i] = domsid.SubAuthority[i];
}
SubAuthority[i] = rid;
}
public Sid(Rpc.SidT sid, int type, string domainName, string acctName, bool decrementAuthority
)
{
Revision = sid.Revision;
SubAuthorityCount = sid.SubAuthorityCount;
IdentifierAuthority = sid.IdentifierAuthority;
SubAuthority = sid.SubAuthority;
this.Type = type;
this.DomainName = domainName;
this.AcctName = acctName;
if (decrementAuthority)
{
SubAuthorityCount--;
SubAuthority = new int[SubAuthorityCount];
for (int i = 0; i < SubAuthorityCount; i++)
{
SubAuthority[i] = sid.SubAuthority[i];
}
}
}
public virtual Sid GetDomainSid()
{
return new Sid(this, SidTypeDomain, DomainName, null, GetType()
!= SidTypeDomain);
}
public virtual int GetRid()
{
if (GetType() == SidTypeDomain)
{
throw new ArgumentException("This SID is a domain sid");
}
return SubAuthority[SubAuthorityCount - 1];
}
/// <summary>Returns the type of this SID indicating the state or type of account.</summary>
/// <remarks>
/// Returns the type of this SID indicating the state or type of account.
/// <p>
/// SID types are described in the following table.
/// <tt>
/// <table>
/// <tr><th>Type</th><th>Name</th></tr>
/// <tr><td>SID_TYPE_USE_NONE</td><td>0</td></tr>
/// <tr><td>SID_TYPE_USER</td><td>User</td></tr>
/// <tr><td>SID_TYPE_DOM_GRP</td><td>Domain group</td></tr>
/// <tr><td>SID_TYPE_DOMAIN</td><td>Domain</td></tr>
/// <tr><td>SID_TYPE_ALIAS</td><td>Local group</td></tr>
/// <tr><td>SID_TYPE_WKN_GRP</td><td>Builtin group</td></tr>
/// <tr><td>SID_TYPE_DELETED</td><td>Deleted</td></tr>
/// <tr><td>SID_TYPE_INVALID</td><td>Invalid</td></tr>
/// <tr><td>SID_TYPE_UNKNOWN</td><td>Unknown</td></tr>
/// </table>
/// </tt>
/// </remarks>
public virtual int GetType()
{
if (OriginServer != null)
{
ResolveWeak();
}
return Type;
}
/// <summary>
/// Return text represeting the SID type suitable for display to
/// users.
/// </summary>
/// <remarks>
/// Return text represeting the SID type suitable for display to
/// users. Text includes 'User', 'Domain group', 'Local group', etc.
/// </remarks>
public virtual string GetTypeText()
{
if (OriginServer != null)
{
ResolveWeak();
}
return SidTypeNames[Type];
}
/// <summary>
/// Return the domain name of this SID unless it could not be
/// resolved in which case the numeric representation is returned.
/// </summary>
/// <remarks>
/// Return the domain name of this SID unless it could not be
/// resolved in which case the numeric representation is returned.
/// </remarks>
public virtual string GetDomainName()
{
if (OriginServer != null)
{
ResolveWeak();
}
if (Type == SidTypeUnknown)
{
string full = ToString();
return Runtime.Substring(full, 0, full.Length - GetAccountName().Length -
1);
}
return DomainName;
}
/// <summary>
/// Return the sAMAccountName of this SID unless it could not
/// be resolved in which case the numeric RID is returned.
/// </summary>
/// <remarks>
/// Return the sAMAccountName of this SID unless it could not
/// be resolved in which case the numeric RID is returned. If this
/// SID is a domain SID, this method will return an empty String.
/// </remarks>
public virtual string GetAccountName()
{
if (OriginServer != null)
{
ResolveWeak();
}
if (Type == SidTypeUnknown)
{
return string.Empty + SubAuthority[SubAuthorityCount - 1];
}
if (Type == SidTypeDomain)
{
return string.Empty;
}
return AcctName;
}
public override int GetHashCode()
{
int hcode = IdentifierAuthority[5];
for (int i = 0; i < SubAuthorityCount; i++)
{
hcode += 65599 * SubAuthority[i];
}
return hcode;
}
public override bool Equals(object obj)
{
if (obj is Sid)
{
Sid sid = (Sid)obj;
if (sid == this)
{
return true;
}
if (sid.SubAuthorityCount == SubAuthorityCount)
{
int i = SubAuthorityCount;
while (i-- > 0)
{
if (sid.SubAuthority[i] != SubAuthority[i])
{
return false;
}
}
for (i = 0; i < 6; i++)
{
if (sid.IdentifierAuthority[i] != IdentifierAuthority[i])
{
return false;
}
}
return sid.Revision == Revision;
}
}
return false;
}
/// <summary>
/// Return the numeric representation of this sid such as
/// <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt>.
/// </summary>
/// <remarks>
/// Return the numeric representation of this sid such as
/// <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt>.
/// </remarks>
public override string ToString()
{
string ret = "S-" + (Revision & unchecked(0xFF)) + "-";
if (IdentifierAuthority[0] != unchecked(0) || IdentifierAuthority[1] != unchecked(
0))
{
ret += "0x";
ret += Hexdump.ToHexString(IdentifierAuthority, 0, 6);
}
else
{
int shift = 0;
long id = 0;
for (int i = 5; i > 1; i--)
{
id += (IdentifierAuthority[i] & unchecked(0xFFL)) << shift;
shift += 8;
}
ret += id;
}
for (int i1 = 0; i1 < SubAuthorityCount; i1++)
{
ret += "-" + (SubAuthority[i1] & unchecked(0xFFFFFFFFL));
}
return ret;
}
/// <summary>
/// Return a String representing this SID ideal for display to
/// users.
/// </summary>
/// <remarks>
/// Return a String representing this SID ideal for display to
/// users. This method should return the same text that the ACL
/// editor in Windows would display.
/// <p>
/// Specifically, if the SID has
/// been resolved and it is not a domain SID or builtin account,
/// the full DOMAIN\name form of the account will be
/// returned (e.g. MYDOM\alice or MYDOM\Domain Users).
/// If the SID has been resolved but it is is a domain SID,
/// only the domain name will be returned (e.g. MYDOM).
/// If the SID has been resolved but it is a builtin account,
/// only the name component will be returned (e.g. SYSTEM).
/// If the sid cannot be resolved the numeric representation from
/// toString() is returned.
/// </remarks>
public virtual string ToDisplayString()
{
if (OriginServer != null)
{
ResolveWeak();
}
if (DomainName != null)
{
string str;
if (Type == SidTypeDomain)
{
str = DomainName;
}
else
{
if (Type == SidTypeWknGrp || DomainName.Equals("BUILTIN"))
{
if (Type == SidTypeUnknown)
{
str = ToString();
}
else
{
str = AcctName;
}
}
else
{
str = DomainName + "\\" + AcctName;
}
}
return str;
}
return ToString();
}
/// <summary>Manually resolve this SID.</summary>
/// <remarks>
/// Manually resolve this SID. Normally SIDs are automatically
/// resolved. However, if a SID is constructed explicitly using a SID
/// constructor, JCIFS will have no knowledge of the server that created the
/// SID and therefore cannot possibly resolve it automatically. In this case,
/// this method will be necessary.
/// </remarks>
/// <param name="authorityServerName">The FQDN of the server that is an authority for the SID.
/// </param>
/// <param name="auth">Credentials suitable for accessing the SID's information.</param>
/// <exception cref="System.IO.IOException"></exception>
public virtual void Resolve(string authorityServerName, NtlmPasswordAuthentication
auth)
{
Sid[] sids = new Sid[1];
sids[0] = this;
ResolveSids(authorityServerName, auth, sids);
}
internal virtual void ResolveWeak()
{
if (OriginServer != null)
{
try
{
Resolve(OriginServer, OriginAuth);
}
catch (IOException)
{
}
finally
{
OriginServer = null;
OriginAuth = null;
}
}
}
/// <exception cref="System.IO.IOException"></exception>
internal static Sid[] GetGroupMemberSids0(DcerpcHandle handle, SamrDomainHandle
domainHandle, Sid domsid, int rid, int flags)
{
SamrAliasHandle aliasHandle = null;
Lsarpc.LsarSidArray sidarray = new Lsarpc.LsarSidArray();
MsrpcGetMembersInAlias rpc = null;
try
{
aliasHandle = new SamrAliasHandle(handle, domainHandle, unchecked(0x0002000c), rid);
rpc = new MsrpcGetMembersInAlias(aliasHandle, sidarray);
handle.Sendrecv(rpc);
if (rpc.Retval != 0)
{
throw new SmbException(rpc.Retval, false);
}
Sid[] sids = new Sid[rpc.Sids.NumSids];
string originServer = handle.GetServer();
NtlmPasswordAuthentication originAuth = (NtlmPasswordAuthentication)handle.GetPrincipal
();
for (int i = 0; i < sids.Length; i++)
{
sids[i] = new Sid(rpc.Sids.Sids[i].Sid, 0, null, null, false);
sids[i].OriginServer = originServer;
sids[i].OriginAuth = originAuth;
}
if (sids.Length > 0 && (flags & SidFlagResolveSids) != 0)
{
ResolveSids(originServer, originAuth, sids);
}
return sids;
}
finally
{
if (aliasHandle != null)
{
aliasHandle.Close();
}
}
}
/// <exception cref="System.IO.IOException"></exception>
public virtual Sid[] GetGroupMemberSids(string authorityServerName, NtlmPasswordAuthentication
auth, int flags)
{
if (Type != SidTypeDomGrp && Type != SidTypeAlias)
{
return new Sid[0];
}
DcerpcHandle handle = null;
SamrPolicyHandle policyHandle = null;
SamrDomainHandle domainHandle = null;
Sid domsid = GetDomainSid();
lock (SidCache)
{
try
{
handle = DcerpcHandle.GetHandle("ncacn_np:" + authorityServerName + "[\\PIPE\\samr]"
, auth);
policyHandle = new SamrPolicyHandle(handle, authorityServerName, unchecked(0x00000030));
domainHandle = new SamrDomainHandle(handle, policyHandle, unchecked(0x00000200), domsid);
return GetGroupMemberSids0(handle, domainHandle, domsid, GetRid(),
flags);
}
finally
{
if (handle != null)
{
if (policyHandle != null)
{
if (domainHandle != null)
{
domainHandle.Close();
}
policyHandle.Close();
}
handle.Close();
}
}
}
}
/// <summary>
/// This specialized method returns a Map of users and local groups for the
/// target server where keys are SIDs representing an account and each value
/// is an List<object> of SIDs represents the local groups that the account is
/// a member of.
/// </summary>
/// <remarks>
/// This specialized method returns a Map of users and local groups for the
/// target server where keys are SIDs representing an account and each value
/// is an List<object> of SIDs represents the local groups that the account is
/// a member of.
/// <p/>
/// This method is designed to assist with computing access control for a
/// given user when the target object's ACL has local groups. Local groups
/// are not listed in a user's group membership (e.g. as represented by the
/// tokenGroups constructed attribute retrived via LDAP).
/// <p/>
/// Domain groups nested inside a local group are currently not expanded. In
/// this case the key (SID) type will be SID_TYPE_DOM_GRP rather than
/// SID_TYPE_USER.
/// </remarks>
/// <param name="authorityServerName">The server from which the local groups will be queried.
/// </param>
/// <param name="auth">The credentials required to query groups and group members.</param>
/// <param name="flags">
/// Flags that control the behavior of the operation. When all
/// name associated with SIDs will be required, the SID_FLAG_RESOLVE_SIDS
/// flag should be used which causes all group member SIDs to be resolved
/// together in a single more efficient operation.
/// </param>
/// <exception cref="System.IO.IOException"></exception>
internal static Hashtable GetLocalGroupsMap(string authorityServerName, NtlmPasswordAuthentication
auth, int flags)
{
Sid domsid = GetServerSid(authorityServerName, auth);
DcerpcHandle handle = null;
SamrPolicyHandle policyHandle = null;
SamrDomainHandle domainHandle = null;
Samr.SamrSamArray sam = new Samr.SamrSamArray();
MsrpcEnumerateAliasesInDomain rpc;
lock (SidCache)
{
try
{
handle = DcerpcHandle.GetHandle("ncacn_np:" + authorityServerName + "[\\PIPE\\samr]"
, auth);
policyHandle = new SamrPolicyHandle(handle, authorityServerName, unchecked(0x02000000));
domainHandle = new SamrDomainHandle(handle, policyHandle, unchecked(0x02000000), domsid);
rpc = new MsrpcEnumerateAliasesInDomain(domainHandle, unchecked(0xFFFF), sam
);
handle.Sendrecv(rpc);
if (rpc.Retval != 0)
{
throw new SmbException(rpc.Retval, false);
}
Hashtable map = new Hashtable();
for (int ei = 0; ei < rpc.Sam.Count; ei++)
{
Samr.SamrSamEntry entry = rpc.Sam.Entries[ei];
Sid[] mems = GetGroupMemberSids0(handle, domainHandle, domsid
, entry.Idx, flags);
Sid groupSid = new Sid(domsid, entry.Idx);
groupSid.Type = SidTypeAlias;
groupSid.DomainName = domsid.GetDomainName();
groupSid.AcctName = (new UnicodeString(entry.Name, false)).ToString();
for (int mi = 0; mi < mems.Length; mi++)
{
List<object> groups = (List<object>)map.Get(mems[mi]);
if (groups == null)
{
groups = new List<object>();
map.Put(mems[mi], groups);
}
if (!groups.Contains(groupSid))
{
groups.Add(groupSid);
}
}
}
return map;
}
finally
{
if (handle != null)
{
if (policyHandle != null)
{
if (domainHandle != null)
{
domainHandle.Close();
}
policyHandle.Close();
}
handle.Close();
}
}
}
}
}
}
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