| 1 | /** @file
|
|---|
| 2 | *
|
|---|
| 3 | * VBox Remote Desktop Protocol:
|
|---|
| 4 | * External Authentication Library:
|
|---|
| 5 | * Mac OS X Authentication. This is based on
|
|---|
| 6 | * http://developer.apple.com/mac/library/samplecode/CryptNoMore/
|
|---|
| 7 | */
|
|---|
| 8 |
|
|---|
| 9 | /*
|
|---|
| 10 | * Copyright (C) 2009-2010 Oracle Corporation
|
|---|
| 11 | *
|
|---|
| 12 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 13 | * available from http://www.alldomusa.eu.org. This file is free software;
|
|---|
| 14 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 15 | * General Public License (GPL) as published by the Free Software
|
|---|
| 16 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 17 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 18 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 19 | */
|
|---|
| 20 |
|
|---|
| 21 | #include <iprt/cdefs.h>
|
|---|
| 22 | #include <iprt/assert.h>
|
|---|
| 23 |
|
|---|
| 24 | #include <VBox/VRDPAuth.h>
|
|---|
| 25 |
|
|---|
| 26 | #include <DirectoryService/DirectoryService.h>
|
|---|
| 27 |
|
|---|
| 28 | /* Globals */
|
|---|
| 29 | static const size_t s_cBufferSize = 32 * 1024;
|
|---|
| 30 |
|
|---|
| 31 | tDirStatus defaultSearchNodePath(tDirReference pDirRef, tDataListPtr *pdsNodePath)
|
|---|
| 32 | {
|
|---|
| 33 | tDirStatus dsErr = eDSNoErr;
|
|---|
| 34 | /* Create a buffer for the resulting nodes */
|
|---|
| 35 | tDataBufferPtr pTmpBuf = NULL;
|
|---|
| 36 | pTmpBuf = dsDataBufferAllocate(pDirRef, s_cBufferSize);
|
|---|
| 37 | if (pTmpBuf)
|
|---|
| 38 | {
|
|---|
| 39 | /* Try to find the default search node for local names */
|
|---|
| 40 | UInt32 cNodes;
|
|---|
| 41 | tContextData pCtx = NULL;
|
|---|
| 42 | dsErr = dsFindDirNodes(pDirRef, pTmpBuf, NULL, eDSLocalNodeNames, &cNodes, &pCtx);
|
|---|
| 43 | /* Any nodes found? */
|
|---|
| 44 | if ( dsErr == eDSNoErr
|
|---|
| 45 | && cNodes >= 1)
|
|---|
| 46 | /* The first path of the node list is what we looking for. */
|
|---|
| 47 | dsErr = dsGetDirNodeName(pDirRef, pTmpBuf, 1, pdsNodePath);
|
|---|
| 48 | else
|
|---|
| 49 | dsErr = eDSNodeNotFound;
|
|---|
| 50 |
|
|---|
| 51 | if (pCtx)
|
|---|
| 52 | dsReleaseContinueData(pDirRef, pCtx);
|
|---|
| 53 | dsDataBufferDeAllocate(pDirRef, pTmpBuf);
|
|---|
| 54 | }
|
|---|
| 55 | else
|
|---|
| 56 | dsErr = eDSAllocationFailed;
|
|---|
| 57 |
|
|---|
| 58 | return dsErr;
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | tDirStatus userAuthInfo(tDirReference pDirRef, tDirNodeReference pNodeRef, const char *pszUsername, tDataListPtr *ppAuthNodeListOut)
|
|---|
| 62 | {
|
|---|
| 63 | tDirStatus dsErr = eDSNoErr;
|
|---|
| 64 | tDirStatus dsCleanErr = eDSNoErr;
|
|---|
| 65 | /* Create a buffer for the resulting authentication info */
|
|---|
| 66 | tDataBufferPtr pTmpBuf = dsDataBufferAllocate(pDirRef, s_cBufferSize);
|
|---|
| 67 | if (pTmpBuf)
|
|---|
| 68 | {
|
|---|
| 69 | /* Create the necessary lists for kDSNAttrMetaNodeLocation and kDSNAttrRecordName. */
|
|---|
| 70 | tDataListPtr pRecordType = dsBuildListFromStrings(pDirRef, kDSStdRecordTypeUsers, NULL);
|
|---|
| 71 | tDataListPtr pRecordName = dsBuildListFromStrings(pDirRef, pszUsername, NULL);
|
|---|
| 72 | tDataListPtr pRequestedAttributes = dsBuildListFromStrings(pDirRef, kDSNAttrMetaNodeLocation, kDSNAttrRecordName, NULL);
|
|---|
| 73 | if (!( pRecordType == NULL
|
|---|
| 74 | || pRecordName == NULL
|
|---|
| 75 | || pRequestedAttributes == NULL))
|
|---|
| 76 | {
|
|---|
| 77 | /* Now search for the first matching record */
|
|---|
| 78 | UInt32 cRecords = 1;
|
|---|
| 79 | tContextData pCtx = NULL;
|
|---|
| 80 | dsErr = dsGetRecordList(pNodeRef,
|
|---|
| 81 | pTmpBuf,
|
|---|
| 82 | pRecordName,
|
|---|
| 83 | eDSExact,
|
|---|
| 84 | pRecordType,
|
|---|
| 85 | pRequestedAttributes,
|
|---|
| 86 | false,
|
|---|
| 87 | &cRecords,
|
|---|
| 88 | &pCtx);
|
|---|
| 89 | if ( dsErr == eDSNoErr
|
|---|
| 90 | && cRecords >= 1)
|
|---|
| 91 | {
|
|---|
| 92 | /* Process the first found record. Look at any attribute one by one. */
|
|---|
| 93 | tAttributeListRef pRecAttrListRef = NULL;
|
|---|
| 94 | tRecordEntryPtr pRecEntry = NULL;
|
|---|
| 95 | tDataListPtr pAuthNodeList = NULL;
|
|---|
| 96 | dsErr = dsGetRecordEntry(pNodeRef, pTmpBuf, 1, &pRecAttrListRef, &pRecEntry);
|
|---|
| 97 | if (dsErr == eDSNoErr)
|
|---|
| 98 | {
|
|---|
| 99 | for (size_t i = 1; i <= pRecEntry->fRecordAttributeCount; ++i)
|
|---|
| 100 | {
|
|---|
| 101 | tAttributeValueListRef pAttrValueListRef = NULL;
|
|---|
| 102 | tAttributeEntryPtr pAttrEntry = NULL;
|
|---|
| 103 | /* Get the information for this attribute. */
|
|---|
| 104 | dsErr = dsGetAttributeEntry(pNodeRef, pTmpBuf, pRecAttrListRef, i,
|
|---|
| 105 | &pAttrValueListRef, &pAttrEntry);
|
|---|
| 106 | if (dsErr == eDSNoErr)
|
|---|
| 107 | {
|
|---|
| 108 | tAttributeValueEntryPtr pValueEntry = NULL;
|
|---|
| 109 | /* Has any value? */
|
|---|
| 110 | if (pAttrEntry->fAttributeValueCount > 0)
|
|---|
| 111 | {
|
|---|
| 112 | dsErr = dsGetAttributeValue(pNodeRef, pTmpBuf, 1, pAttrValueListRef, &pValueEntry);
|
|---|
| 113 | if (dsErr == eDSNoErr)
|
|---|
| 114 | {
|
|---|
| 115 | /* Check for kDSNAttrMetaNodeLocation */
|
|---|
| 116 | if (strcmp(pAttrEntry->fAttributeSignature.fBufferData, kDSNAttrMetaNodeLocation) == 0)
|
|---|
| 117 | {
|
|---|
| 118 | /* Convert the meta location attribute to a path node list */
|
|---|
| 119 | pAuthNodeList = dsBuildFromPath(pDirRef,
|
|---|
| 120 | pValueEntry->fAttributeValueData.fBufferData,
|
|---|
| 121 | "/");
|
|---|
| 122 | if (pAuthNodeList == NULL)
|
|---|
| 123 | dsErr = eDSAllocationFailed;
|
|---|
| 124 | }
|
|---|
| 125 | }
|
|---|
| 126 | }
|
|---|
| 127 |
|
|---|
| 128 | if (pValueEntry != NULL)
|
|---|
| 129 | dsDeallocAttributeValueEntry(pDirRef, pValueEntry);
|
|---|
| 130 | if (pAttrValueListRef)
|
|---|
| 131 | dsCloseAttributeValueList(pAttrValueListRef);
|
|---|
| 132 | if (pAttrEntry != NULL)
|
|---|
| 133 | dsDeallocAttributeEntry(pDirRef, pAttrEntry);
|
|---|
| 134 |
|
|---|
| 135 | if (dsErr != eDSNoErr)
|
|---|
| 136 | break;
|
|---|
| 137 | }
|
|---|
| 138 | }
|
|---|
| 139 | }
|
|---|
| 140 | /* Copy the results */
|
|---|
| 141 | if (dsErr == eDSNoErr)
|
|---|
| 142 | {
|
|---|
| 143 | if (pAuthNodeList != NULL)
|
|---|
| 144 | {
|
|---|
| 145 | /* Copy out results. */
|
|---|
| 146 | *ppAuthNodeListOut = pAuthNodeList;
|
|---|
| 147 | pAuthNodeList = NULL;
|
|---|
| 148 | }
|
|---|
| 149 | else
|
|---|
| 150 | dsErr = eDSAttributeNotFound;
|
|---|
| 151 | }
|
|---|
| 152 |
|
|---|
| 153 | if (pAuthNodeList != NULL)
|
|---|
| 154 | {
|
|---|
| 155 | dsCleanErr = dsDataListDeallocate(pDirRef, pAuthNodeList);
|
|---|
| 156 | if (dsCleanErr == eDSNoErr)
|
|---|
| 157 | free(pAuthNodeList);
|
|---|
| 158 | }
|
|---|
| 159 | if (pRecAttrListRef)
|
|---|
| 160 | dsCloseAttributeList(pRecAttrListRef);
|
|---|
| 161 | if (pRecEntry != NULL)
|
|---|
| 162 | dsDeallocRecordEntry(pDirRef, pRecEntry);
|
|---|
| 163 | }
|
|---|
| 164 | else
|
|---|
| 165 | dsErr = eDSRecordNotFound;
|
|---|
| 166 | if (pCtx)
|
|---|
| 167 | dsReleaseContinueData(pDirRef, pCtx);
|
|---|
| 168 | }
|
|---|
| 169 | else
|
|---|
| 170 | dsErr = eDSAllocationFailed;
|
|---|
| 171 | if (pRequestedAttributes != NULL)
|
|---|
| 172 | {
|
|---|
| 173 | dsCleanErr = dsDataListDeallocate(pDirRef, pRequestedAttributes);
|
|---|
| 174 | if (dsCleanErr == eDSNoErr)
|
|---|
| 175 | free(pRequestedAttributes);
|
|---|
| 176 | }
|
|---|
| 177 | if (pRecordName != NULL)
|
|---|
| 178 | {
|
|---|
| 179 | dsCleanErr = dsDataListDeallocate(pDirRef, pRecordName);
|
|---|
| 180 | if (dsCleanErr == eDSNoErr)
|
|---|
| 181 | free(pRecordName);
|
|---|
| 182 | }
|
|---|
| 183 | if (pRecordType != NULL)
|
|---|
| 184 | {
|
|---|
| 185 | dsCleanErr = dsDataListDeallocate(pDirRef, pRecordType);
|
|---|
| 186 | if (dsCleanErr == eDSNoErr)
|
|---|
| 187 | free(pRecordType);
|
|---|
| 188 | }
|
|---|
| 189 | dsDataBufferDeAllocate(pDirRef, pTmpBuf);
|
|---|
| 190 | }
|
|---|
| 191 | else
|
|---|
| 192 | dsErr = eDSAllocationFailed;
|
|---|
| 193 |
|
|---|
| 194 | return dsErr;
|
|---|
| 195 | }
|
|---|
| 196 |
|
|---|
| 197 | tDirStatus authWithNode(tDirReference pDirRef, tDataListPtr pAuthNodeList, const char *pszUsername, const char *pszPassword)
|
|---|
| 198 | {
|
|---|
| 199 | tDirStatus dsErr = eDSNoErr;
|
|---|
| 200 | /* Open the authentication node. */
|
|---|
| 201 | tDirNodeReference pAuthNodeRef = NULL;
|
|---|
| 202 | dsErr = dsOpenDirNode(pDirRef, pAuthNodeList, &pAuthNodeRef);
|
|---|
| 203 | if (dsErr == eDSNoErr)
|
|---|
| 204 | {
|
|---|
| 205 | /* How like we to authenticate! */
|
|---|
| 206 | tDataNodePtr pAuthMethod = dsDataNodeAllocateString(pDirRef, kDSStdAuthNodeNativeClearTextOK);
|
|---|
| 207 | if (pAuthMethod)
|
|---|
| 208 | {
|
|---|
| 209 | /* Create the memory holding the authentication data. The data
|
|---|
| 210 | * structure consists of 4 byte length of the username + zero byte,
|
|---|
| 211 | * the username itself, a 4 byte length of the password & the
|
|---|
| 212 | * password itself + zero byte. */
|
|---|
| 213 | tDataBufferPtr pAuthOutBuf = dsDataBufferAllocate(pDirRef, s_cBufferSize);
|
|---|
| 214 | if (pAuthOutBuf)
|
|---|
| 215 | {
|
|---|
| 216 | size_t cUserName = strlen(pszUsername) + 1;
|
|---|
| 217 | size_t cPassword = strlen(pszPassword) + 1;
|
|---|
| 218 | unsigned long cLen = 0;
|
|---|
| 219 | tDataBufferPtr pAuthInBuf = dsDataBufferAllocate(pDirRef, sizeof(cLen) + cUserName + sizeof(cLen) + cPassword);
|
|---|
| 220 | if (pAuthInBuf)
|
|---|
| 221 | {
|
|---|
| 222 | /* Move the data into the buffer. */
|
|---|
| 223 | pAuthInBuf->fBufferLength = 0;
|
|---|
| 224 | /* Length of the username */
|
|---|
| 225 | cLen = cUserName;
|
|---|
| 226 | memcpy(&pAuthInBuf->fBufferData[pAuthInBuf->fBufferLength], &cLen, sizeof(cLen));
|
|---|
| 227 | pAuthInBuf->fBufferLength += sizeof(cLen);
|
|---|
| 228 | /* The username itself */
|
|---|
| 229 | memcpy(&pAuthInBuf->fBufferData[pAuthInBuf->fBufferLength], pszUsername, cUserName);
|
|---|
| 230 | pAuthInBuf->fBufferLength += cUserName;
|
|---|
| 231 | /* Length of the password */
|
|---|
| 232 | cLen = cPassword;
|
|---|
| 233 | memcpy(&pAuthInBuf->fBufferData[pAuthInBuf->fBufferLength], &cLen, sizeof(cLen));
|
|---|
| 234 | pAuthInBuf->fBufferLength += sizeof(cLen);
|
|---|
| 235 | /* The password itself */
|
|---|
| 236 | memcpy(&pAuthInBuf->fBufferData[pAuthInBuf->fBufferLength], pszPassword, cPassword);
|
|---|
| 237 | pAuthInBuf->fBufferLength += cPassword;
|
|---|
| 238 | /* Now authenticate */
|
|---|
| 239 | dsErr = dsDoDirNodeAuth(pAuthNodeRef, pAuthMethod, true, pAuthInBuf, pAuthOutBuf, NULL);
|
|---|
| 240 | /* Clean up. */
|
|---|
| 241 | dsDataBufferDeAllocate(pDirRef, pAuthInBuf);
|
|---|
| 242 | }
|
|---|
| 243 | else
|
|---|
| 244 | dsErr = eDSAllocationFailed;
|
|---|
| 245 | dsDataBufferDeAllocate(pDirRef, pAuthOutBuf);
|
|---|
| 246 | }
|
|---|
| 247 | else
|
|---|
| 248 | dsErr = eDSAllocationFailed;
|
|---|
| 249 | dsDataNodeDeAllocate(pDirRef, pAuthMethod);
|
|---|
| 250 | }
|
|---|
| 251 | else
|
|---|
| 252 | dsErr = eDSAllocationFailed;
|
|---|
| 253 | dsCloseDirNode(pAuthNodeRef);
|
|---|
| 254 | }
|
|---|
| 255 |
|
|---|
| 256 | return dsErr;
|
|---|
| 257 | }
|
|---|
| 258 |
|
|---|
| 259 | RT_C_DECLS_BEGIN
|
|---|
| 260 | DECLEXPORT(VRDPAuthResult) VRDPAUTHCALL VRDPAuth(PVRDPAUTHUUID pUuid,
|
|---|
| 261 | VRDPAuthGuestJudgement guestJudgement,
|
|---|
| 262 | const char *pszUser,
|
|---|
| 263 | const char *pszPassword,
|
|---|
| 264 | const char *pszDomain)
|
|---|
| 265 | {
|
|---|
| 266 | /* Validate input */
|
|---|
| 267 | AssertPtrReturn(pszUser, VRDPAuthAccessDenied);
|
|---|
| 268 | AssertPtrReturn(pszPassword, VRDPAuthAccessDenied);
|
|---|
| 269 |
|
|---|
| 270 | /* Result to a default value */
|
|---|
| 271 | VRDPAuthResult result = VRDPAuthAccessDenied;
|
|---|
| 272 |
|
|---|
| 273 | tDirStatus dsErr = eDSNoErr;
|
|---|
| 274 | tDirStatus dsCleanErr = eDSNoErr;
|
|---|
| 275 | tDirReference pDirRef = NULL;
|
|---|
| 276 | /* Connect to the Directory Service. */
|
|---|
| 277 | dsErr = dsOpenDirService(&pDirRef);
|
|---|
| 278 | if (dsErr == eDSNoErr)
|
|---|
| 279 | {
|
|---|
| 280 | /* Fetch the default search node */
|
|---|
| 281 | tDataListPtr pSearchNodeList = NULL;
|
|---|
| 282 | dsErr = defaultSearchNodePath(pDirRef, &pSearchNodeList);
|
|---|
| 283 | if (dsErr == eDSNoErr)
|
|---|
| 284 | {
|
|---|
| 285 | /* Open the default search node */
|
|---|
| 286 | tDirNodeReference pSearchNodeRef = NULL;
|
|---|
| 287 | dsErr = dsOpenDirNode(pDirRef, pSearchNodeList, &pSearchNodeRef);
|
|---|
| 288 | if (dsErr == eDSNoErr)
|
|---|
| 289 | {
|
|---|
| 290 | /* Search for the user info, fetch the authentication node &
|
|---|
| 291 | * the authentication user name. This allows the client to
|
|---|
| 292 | * specify a long user name even if the name which is used to
|
|---|
| 293 | * authenticate has the short form. */
|
|---|
| 294 | tDataListPtr pAuthNodeList = NULL;
|
|---|
| 295 | dsErr = userAuthInfo(pDirRef, pSearchNodeRef, pszUser, &pAuthNodeList);
|
|---|
| 296 | if (dsErr == eDSNoErr)
|
|---|
| 297 | {
|
|---|
| 298 | /* Open the authentication node and do the authentication. */
|
|---|
| 299 | dsErr = authWithNode(pDirRef, pAuthNodeList, pszUser, pszPassword);
|
|---|
| 300 | if (dsErr == eDSNoErr)
|
|---|
| 301 | result = VRDPAuthAccessGranted;
|
|---|
| 302 | dsCleanErr = dsDataListDeallocate(pDirRef, pAuthNodeList);
|
|---|
| 303 | if (dsCleanErr == eDSNoErr)
|
|---|
| 304 | free(pAuthNodeList);
|
|---|
| 305 | }
|
|---|
| 306 | dsCloseDirNode(pSearchNodeRef);
|
|---|
| 307 | }
|
|---|
| 308 | dsCleanErr = dsDataListDeallocate(pDirRef, pSearchNodeList);
|
|---|
| 309 | if (dsCleanErr == eDSNoErr)
|
|---|
| 310 | free(pSearchNodeList);
|
|---|
| 311 | }
|
|---|
| 312 | dsCloseDirService(pDirRef);
|
|---|
| 313 | }
|
|---|
| 314 |
|
|---|
| 315 | return result;
|
|---|
| 316 | }
|
|---|
| 317 | RT_C_DECLS_END
|
|---|
| 318 |
|
|---|
| 319 | static PVRDPAUTHENTRY gpfnAuthEntry = VRDPAuth;
|
|---|
| 320 |
|
|---|
