1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
/*
 * ReactOS Authorization Framework
 * Copyright (C) 2005 - 2006 ReactOS Team
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
/*
 * PROJECT:         ReactOS Authorization Framework
 * FILE:            lib/authz/clictx.c
 * PURPOSE:         Authorization Framework
 * PROGRAMMER:      Thomas Weidenmueller <w3seek@reactos.com>
 *
 * UPDATE HISTORY:
 *      10/07/2005  Created
 */

#include "precomp.h"

#define NDEBUG
#include <debug.h>

/*
 * @unimplemented
 */
AUTHZAPI
BOOL
WINAPI
AuthzInitializeContextFromSid(IN DWORD Flags,
                              IN PSID UserSid,
                              IN AUTHZ_RESOURCE_MANAGER_HANDLE AuthzResourceManager,
                              IN PLARGE_INTEGER pExpirationTime,
                              IN LUID Identifier,
                              IN PVOID DynamicGroupArgs,
                              OUT PAUTHZ_CLIENT_CONTEXT_HANDLE pAuthzClientContext)
{
    BOOL Ret = FALSE;

    if (AuthzResourceManager != NULL && pExpirationTime != NULL && pAuthzClientContext != NULL &&<--- Assuming that condition 'pExpirationTime!=NULL' is not redundant
        UserSid != NULL && IsValidSid(UserSid) && !(Flags & (AUTHZ_SKIP_TOKEN_GROUPS | AUTHZ_REQUIRE_S4U_LOGON)))
    {
        PAUTHZ_CLIENT_CONTEXT ClientCtx;
        //PAUTHZ_RESMAN ResMan = (PAUTHZ_RESMAN)AuthzResourceManager;

        VALIDATE_RESMAN_HANDLE(AuthzResourceManager);

        ClientCtx = (PAUTHZ_CLIENT_CONTEXT)LocalAlloc(LMEM_FIXED,
                                                      sizeof(AUTHZ_CLIENT_CONTEXT));
        if (ClientCtx != NULL)
        {
            DWORD SidLen;

            /* initialize the client context structure */
#if DBG
            ClientCtx->Tag = CLIENTCTX_TAG;
#endif

            /* simply copy the SID */
            SidLen = GetLengthSid(UserSid);
            ClientCtx->UserSid = (PSID)LocalAlloc(LMEM_FIXED,
                                                  SidLen);
            if (ClientCtx->UserSid == NULL)
            {
                LocalFree((HLOCAL)ClientCtx);
                goto FailNoMemory;
            }
            CopySid(SidLen,
                    ClientCtx->UserSid,
                    UserSid);

            ClientCtx->AuthzResourceManager = AuthzResourceManager;
            ClientCtx->Luid = Identifier;
            ClientCtx->ExpirationTime.QuadPart = (pExpirationTime != NULL ? pExpirationTime->QuadPart : 0);<--- Condition 'pExpirationTime!=NULL' is always true
            ClientCtx->ServerContext = NULL; /* FIXME */
            ClientCtx->DynamicGroupArgs = DynamicGroupArgs;

            /* return the client context handle */
            *pAuthzClientContext = (AUTHZ_CLIENT_CONTEXT_HANDLE)ClientCtx;
            Ret = TRUE;
        }
        else
        {
FailNoMemory:
            SetLastError(ERROR_NOT_ENOUGH_MEMORY);
        }
    }
    else
        SetLastError(ERROR_INVALID_PARAMETER);

    return Ret;
}


/*
 * @unimplemented
 */
AUTHZAPI
BOOL
WINAPI
AuthzGetInformationFromContext(IN AUTHZ_CLIENT_CONTEXT_HANDLE hAuthzClientContext,
                               IN AUTHZ_CONTEXT_INFORMATION_CLASS InfoClass,
                               IN DWORD BufferSize,
                               OUT PDWORD pSizeRequired,
                               OUT PVOID Buffer)
{
    BOOL Ret = FALSE;

    if (hAuthzClientContext != NULL && pSizeRequired != NULL)
    {
        PAUTHZ_CLIENT_CONTEXT ClientCtx = (PAUTHZ_CLIENT_CONTEXT)hAuthzClientContext;

        VALIDATE_CLIENTCTX_HANDLE(hAuthzClientContext);

        switch (InfoClass)
        {
            case AuthzContextInfoUserSid:
            {
                DWORD SidLen = GetLengthSid(ClientCtx->UserSid);
                *pSizeRequired = SidLen;
                if (BufferSize < SidLen)
                {
                    SetLastError(ERROR_INSUFFICIENT_BUFFER);
                }
                else
                {
                    Ret = CopySid(SidLen,
                                  (PSID)Buffer,
                                  ClientCtx->UserSid);
                }
                break;
            }

            case AuthzContextInfoGroupsSids:
                SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
                break;

            case AuthzContextInfoRestrictedSids:
                SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
                break;

            case AuthzContextInfoPrivileges:
                SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
                break;

            case AuthzContextInfoExpirationTime:
                *pSizeRequired = sizeof(LARGE_INTEGER);
                if (BufferSize < sizeof(LARGE_INTEGER) || Buffer == NULL)
                {
                    SetLastError(ERROR_INSUFFICIENT_BUFFER);
                }
                else
                {
                    *((PLARGE_INTEGER)Buffer) = ClientCtx->ExpirationTime;
                    Ret = TRUE;
                }
                break;

            case AuthzContextInfoServerContext:
                *pSizeRequired = sizeof(AUTHZ_CLIENT_CONTEXT_HANDLE);
                if (BufferSize < sizeof(AUTHZ_CLIENT_CONTEXT_HANDLE) || Buffer == NULL)
                {
                    SetLastError(ERROR_INSUFFICIENT_BUFFER);
                }
                else
                {
                    *((PAUTHZ_CLIENT_CONTEXT_HANDLE)Buffer) = ClientCtx->ServerContext;
                    Ret = TRUE;
                }
                break;

            case AuthzContextInfoIdentifier:
                *pSizeRequired = sizeof(LUID);
                if (BufferSize < sizeof(LUID) || Buffer == NULL)
                {
                    SetLastError(ERROR_INSUFFICIENT_BUFFER);
                }
                else
                {
                    *((PLUID)Buffer) = ClientCtx->Luid;
                    Ret = TRUE;
                }
                break;

            default:
                SetLastError(ERROR_INVALID_PARAMETER);
                break;
        }
    }
    else
        SetLastError(ERROR_INVALID_PARAMETER);

    return Ret;
}


/*
 * @implemented
 */
AUTHZAPI
BOOL
WINAPI
AuthzFreeContext(IN AUTHZ_CLIENT_CONTEXT_HANDLE AuthzClientContext)
{
    BOOL Ret = FALSE;

    if (AuthzClientContext != NULL)
    {
        PAUTHZ_CLIENT_CONTEXT ClientCtx = (PAUTHZ_CLIENT_CONTEXT)AuthzClientContext;

        VALIDATE_CLIENTCTX_HANDLE(AuthzClientContext);

        if (ClientCtx->UserSid != NULL)
        {
            LocalFree((HLOCAL)ClientCtx->UserSid);
        }

        LocalFree((HLOCAL)ClientCtx);
        Ret = TRUE;
    }
    else
        SetLastError(ERROR_INVALID_PARAMETER);

    return Ret;
}