| 1 | // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. |
| 2 | |
| 3 | #include "precomp.h" |
| 4 | |
| 5 | |
| 6 | // private structs |
| 7 | |
| 8 | struct PCA_WELLKNOWN_SID |
| 9 | { |
| 10 | LPCWSTR pwzName; |
| 11 | SID_IDENTIFIER_AUTHORITY iaIdentifierAuthority; |
| 12 | BYTE nSubAuthorityCount; |
| 13 | DWORD dwSubAuthority[8]; |
| 14 | }; |
| 15 | |
| 16 | |
| 17 | // well known SIDs |
| 18 | |
| 19 | PCA_WELLKNOWN_SID wsWellKnownSids[] = { |
| 20 | {L"\\Everyone", SECURITY_WORLD_SID_AUTHORITY, 1, {SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 21 | {L"\\Administrators", SECURITY_NT_AUTHORITY, 2, {SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0}}, |
| 22 | {L"\\LocalSystem", SECURITY_NT_AUTHORITY, 1, {SECURITY_LOCAL_SYSTEM_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 23 | {L"\\LocalService", SECURITY_NT_AUTHORITY, 1, {SECURITY_LOCAL_SERVICE_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 24 | {L"\\NetworkService", SECURITY_NT_AUTHORITY, 1, {SECURITY_NETWORK_SERVICE_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 25 | {L"\\AuthenticatedUser", SECURITY_NT_AUTHORITY, 1, {SECURITY_AUTHENTICATED_USER_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 26 | {L"\\Guests", SECURITY_NT_AUTHORITY, 2, {SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_GUESTS, 0, 0, 0, 0, 0, 0}}, |
| 27 | {L"\\Users", SECURITY_NT_AUTHORITY, 2, {SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_USERS, 0, 0, 0, 0, 0, 0}}, |
| 28 | {L"\\CREATOR OWNER", SECURITY_NT_AUTHORITY, 1, {SECURITY_CREATOR_OWNER_RID, 0, 0, 0, 0, 0, 0, 0}}, |
| 29 | {NULL, SECURITY_NULL_SID_AUTHORITY, 0, {0, 0, 0, 0, 0, 0, 0, 0}} |
| 30 | }; |
| 31 | |
| 32 | |
| 33 | // prototypes for private helper functions |
| 34 | |
| 35 | static HRESULT CreateSidFromDomainRidPair( |
| 36 | PSID pDomainSid, |
| 37 | DWORD dwRid, |
| 38 | PSID* ppSid |
| 39 | ); |
| 40 | static HRESULT InitLsaUnicodeString( |
| 41 | PLSA_UNICODE_STRING plusStr, |
| 42 | LPCWSTR pwzStr, |
| 43 | SIZE_T dwLen |
| 44 | ); |
| 45 | static void FreeLsaUnicodeString( |
| 46 | PLSA_UNICODE_STRING plusStr |
| 47 | ); |
| 48 | |
| 49 | |
| 50 | // function definitions |
| 51 | |
| 52 | HRESULT PcaActionDataMessage( |
| 53 | DWORD cArgs, |
| 54 | ... |
| 55 | ) |
| 56 | { |
| 57 | HRESULT hr = S_OK; |
| 58 | UINT er = ERROR_SUCCESS; |
| 59 | |
| 60 | PMSIHANDLE hRec; |
| 61 | va_list args; |
| 62 | |
| 63 | // record |
| 64 | hRec = ::MsiCreateRecord(cArgs); |
| 65 | ExitOnNull(hRec, hr, E_OUTOFMEMORY, "Failed to create record"); |
| 66 | |
| 67 | va_start(args, cArgs); |
| 68 | for (DWORD i = 1; i <= cArgs; i++) |
| 69 | { |
| 70 | LPCWSTR pwzArg = va_arg(args, WCHAR*); |
| 71 | if (pwzArg && *pwzArg) |
| 72 | { |
| 73 | er = ::MsiRecordSetStringW(hRec, i, pwzArg); |
| 74 | ExitOnFailure(hr = HRESULT_FROM_WIN32(er), "Failed to set record field string"); |
| 75 | } |
| 76 | } |
| 77 | va_end(args); |
| 78 | |
| 79 | // message |
| 80 | er = WcaProcessMessage(INSTALLMESSAGE_ACTIONDATA, hRec); |
| 81 | if (0 == er || IDOK == er || IDYES == er) |
| 82 | { |
| 83 | hr = S_OK; |
| 84 | } |
| 85 | else if (ERROR_INSTALL_USEREXIT == er || IDABORT == er || IDCANCEL == er) |
| 86 | { |
| 87 | WcaSetReturnValue(ERROR_INSTALL_USEREXIT); // note that the user said exit |
| 88 | hr = S_FALSE; |
| 89 | } |
| 90 | else |
| 91 | hr = E_UNEXPECTED; |
| 92 | |
| 93 | LExit: |
| 94 | return hr; |
| 95 | } |
| 96 | |
| 97 | HRESULT PcaAccountNameToSid( |
| 98 | LPCWSTR pwzAccountName, |
| 99 | PSID* ppSid |
| 100 | ) |
| 101 | { |
| 102 | HRESULT hr = S_OK; |
| 103 | UINT er = ERROR_SUCCESS; |
| 104 | NTSTATUS st = 0; |
| 105 | |
| 106 | PSID pSid = NULL; |
| 107 | LSA_OBJECT_ATTRIBUTES loaAttributes; |
| 108 | LSA_HANDLE lsahPolicy = NULL; |
| 109 | LSA_UNICODE_STRING lusName; |
| 110 | PLSA_REFERENCED_DOMAIN_LIST plrdsDomains = NULL; |
| 111 | PLSA_TRANSLATED_SID pltsSid = NULL; |
| 112 | |
| 113 | ::ZeroMemory(&loaAttributes, sizeof(loaAttributes)); |
| 114 | ::ZeroMemory(&lusName, sizeof(lusName)); |
| 115 | |
| 116 | // identify well known SIDs |
| 117 | for (PCA_WELLKNOWN_SID* pWS = wsWellKnownSids; pWS->pwzName; pWS++) |
| 118 | { |
| 119 | if (0 == lstrcmpiW(pwzAccountName, pWS->pwzName)) |
| 120 | { |
| 121 | // allocate SID buffer |
| 122 | pSid = (PSID)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, ::GetSidLengthRequired(pWS->nSubAuthorityCount)); |
| 123 | ExitOnNull(pSid, hr, E_OUTOFMEMORY, "Failed to allocate buffer for SID"); |
| 124 | |
| 125 | // initialize SID |
| 126 | ::InitializeSid(pSid, &pWS->iaIdentifierAuthority, pWS->nSubAuthorityCount); |
| 127 | |
| 128 | // copy sub autorities |
| 129 | for (DWORD i = 0; i < pWS->nSubAuthorityCount; i++) |
| 130 | *::GetSidSubAuthority(pSid, i) = pWS->dwSubAuthority[i]; |
| 131 | |
| 132 | break; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | // lookup name |
| 137 | if (!pSid) |
| 138 | { |
| 139 | // open policy handle |
| 140 | st = ::LsaOpenPolicy(NULL, &loaAttributes, POLICY_ALL_ACCESS, &lsahPolicy); |
| 141 | er = ::LsaNtStatusToWinError(st); |
| 142 | ExitOnFailure(hr = HRESULT_FROM_WIN32(er), "Failed to open policy handle"); |
| 143 | |
| 144 | // create account name lsa unicode string |
| 145 | hr = InitLsaUnicodeString(&lusName, pwzAccountName, wcslen(pwzAccountName)); |
| 146 | ExitOnFailure(hr, "Failed to initialize account name string"); |
| 147 | |
| 148 | // lookup name |
| 149 | st = ::LsaLookupNames(lsahPolicy, 1, &lusName, &plrdsDomains, &pltsSid); |
| 150 | er = ::LsaNtStatusToWinError(st); |
| 151 | ExitOnFailure(hr = HRESULT_FROM_WIN32(er), "Failed to lookup account names"); |
| 152 | |
| 153 | if (SidTypeDomain == pltsSid->Use) |
| 154 | ExitOnFailure(hr = HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED), "Domain SIDs not supported"); |
| 155 | |
| 156 | // convert sid |
| 157 | hr = CreateSidFromDomainRidPair(plrdsDomains->Domains[pltsSid->DomainIndex].Sid, pltsSid->RelativeId, &pSid); |
| 158 | ExitOnFailure(hr, "Failed to convert SID"); |
| 159 | } |
| 160 | |
| 161 | *ppSid = pSid; |
| 162 | pSid = NULL; |
| 163 | |
| 164 | hr = S_OK; |
| 165 | |
| 166 | LExit: |
| 167 | // clean up |
| 168 | if (pSid) |
| 169 | ::HeapFree(::GetProcessHeap(), 0, pSid); |
| 170 | if (lsahPolicy) |
| 171 | ::LsaClose(lsahPolicy); |
| 172 | if (plrdsDomains) |
| 173 | ::LsaFreeMemory(plrdsDomains); |
| 174 | if (pltsSid) |
| 175 | ::LsaFreeMemory(pltsSid); |
| 176 | FreeLsaUnicodeString(&lusName); |
| 177 | |
| 178 | return hr; |
| 179 | } |
| 180 | |
| 181 | HRESULT PcaSidToAccountName( |
| 182 | PSID pSid, |
| 183 | LPWSTR* ppwzAccountName |
| 184 | ) |
| 185 | { |
| 186 | HRESULT hr = S_OK; |
| 187 | UINT er = ERROR_SUCCESS; |
| 188 | NTSTATUS st = 0; |
| 189 | |
| 190 | LSA_OBJECT_ATTRIBUTES loaAttributes; |
| 191 | LSA_HANDLE lsahPolicy = NULL; |
| 192 | PLSA_REFERENCED_DOMAIN_LIST plrdsDomains = NULL; |
| 193 | PLSA_TRANSLATED_NAME pltnName = NULL; |
| 194 | |
| 195 | LPWSTR pwzDomain = NULL; |
| 196 | LPWSTR pwzName = NULL; |
| 197 | |
| 198 | ::ZeroMemory(&loaAttributes, sizeof(loaAttributes)); |
| 199 | |
| 200 | // open policy handle |
| 201 | st = ::LsaOpenPolicy(NULL, &loaAttributes, POLICY_ALL_ACCESS, &lsahPolicy); |
| 202 | er = ::LsaNtStatusToWinError(st); |
| 203 | ExitOnFailure(hr = HRESULT_FROM_WIN32(er), "Failed to open policy handle"); |
| 204 | |
| 205 | // lookup SID |
| 206 | st = ::LsaLookupSids(lsahPolicy, 1, &pSid, &plrdsDomains, &pltnName); |
| 207 | er = ::LsaNtStatusToWinError(st); |
| 208 | ExitOnFailure(hr = HRESULT_FROM_WIN32(er), "Failed to lookup SID"); |
| 209 | |
| 210 | if (SidTypeDomain == pltnName->Use) |
| 211 | ExitOnFailure(hr = HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED), "Domain SIDs not supported"); |
| 212 | |
| 213 | // format account name string |
| 214 | if (SidTypeWellKnownGroup != pltnName->Use) |
| 215 | { |
| 216 | PLSA_UNICODE_STRING plusDomain = &plrdsDomains->Domains[pltnName->DomainIndex].Name; |
| 217 | hr = StrAllocString(&pwzDomain, plusDomain->Buffer, plusDomain->Length / sizeof(WCHAR)); |
| 218 | ExitOnFailure(hr, "Failed to allocate name string"); |
| 219 | } |
| 220 | |
| 221 | hr = StrAllocString(&pwzName, pltnName->Name.Buffer, pltnName->Name.Length / sizeof(WCHAR)); |
| 222 | ExitOnFailure(hr, "Failed to allocate domain string"); |
| 223 | |
| 224 | hr = StrAllocFormatted(ppwzAccountName, L"%s\\%s", pwzDomain ? pwzDomain : L"", pwzName); |
| 225 | ExitOnFailure(hr, "Failed to format account name string"); |
| 226 | |
| 227 | hr = S_OK; |
| 228 | |
| 229 | LExit: |
| 230 | // clean up |
| 231 | if (lsahPolicy) |
| 232 | ::LsaClose(lsahPolicy); |
| 233 | if (plrdsDomains) |
| 234 | ::LsaFreeMemory(plrdsDomains); |
| 235 | if (pltnName) |
| 236 | ::LsaFreeMemory(pltnName); |
| 237 | |
| 238 | ReleaseStr(pwzDomain); |
| 239 | ReleaseStr(pwzName); |
| 240 | |
| 241 | return hr; |
| 242 | } |
| 243 | |
| 244 | HRESULT PcaBuildAccountName( |
| 245 | LPCWSTR pwzDomain, |
| 246 | LPCWSTR pwzName, |
| 247 | LPWSTR* ppwzAccount |
| 248 | ) |
| 249 | { |
| 250 | HRESULT hr = S_OK; |
| 251 | |
| 252 | WCHAR wzComputerName[MAX_COMPUTERNAME_LENGTH + 1]; |
| 253 | ::ZeroMemory(wzComputerName, sizeof(wzComputerName)); |
| 254 | |
| 255 | // if domain is '.', get computer name |
| 256 | if (0 == lstrcmpW(pwzDomain, L".")) |
| 257 | { |
| 258 | DWORD dwSize = countof(wzComputerName); |
| 259 | if (!::GetComputerNameW(wzComputerName, &dwSize)) |
| 260 | ExitOnFailure(hr = HRESULT_FROM_WIN32(::GetLastError()), "Failed to get computer name"); |
| 261 | } |
| 262 | |
| 263 | // build account name |
| 264 | hr = StrAllocFormatted(ppwzAccount, L"%s\\%s", *wzComputerName ? wzComputerName : pwzDomain, pwzName); |
| 265 | ExitOnFailure(hr, "Failed to build domain user name"); |
| 266 | |
| 267 | hr = S_OK; |
| 268 | |
| 269 | LExit: |
| 270 | return hr; |
| 271 | } |
| 272 | |
| 273 | HRESULT PcaGuidFromString( |
| 274 | LPCWSTR pwzGuid, |
| 275 | LPGUID pGuid |
| 276 | ) |
| 277 | { |
| 278 | HRESULT hr = S_OK; |
| 279 | |
| 280 | int cch = 0; |
| 281 | |
| 282 | WCHAR wz[39]; |
| 283 | ::ZeroMemory(wz, sizeof(wz)); |
| 284 | |
| 285 | cch = lstrlenW(pwzGuid); |
| 286 | |
| 287 | if (38 == cch && L'{' == pwzGuid[0] && L'}' == pwzGuid[37]) |
| 288 | StringCchCopyW(wz, countof(wz), pwzGuid); |
| 289 | else if (36 == cch) |
| 290 | StringCchPrintfW(wz, countof(wz), L"{%s}", pwzGuid); |
| 291 | else |
| 292 | ExitFunction1(hr = E_INVALIDARG); |
| 293 | |
| 294 | hr = ::CLSIDFromString(wz, pGuid); |
| 295 | |
| 296 | LExit: |
| 297 | return hr; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | // helper function definitions |
| 302 | |
| 303 | static HRESULT CreateSidFromDomainRidPair( |
| 304 | PSID pDomainSid, |
| 305 | DWORD dwRid, |
| 306 | PSID* ppSid |
| 307 | ) |
| 308 | { |
| 309 | HRESULT hr = S_OK; |
| 310 | |
| 311 | PSID pSid = NULL; |
| 312 | |
| 313 | // get domain SID sub authority count |
| 314 | UCHAR ucSubAuthorityCount = *::GetSidSubAuthorityCount(pDomainSid); |
| 315 | |
| 316 | // allocate SID buffer |
| 317 | DWORD dwLengthRequired = ::GetSidLengthRequired(ucSubAuthorityCount + (UCHAR)1); |
| 318 | if (*ppSid) |
| 319 | { |
| 320 | SIZE_T ccb = ::HeapSize(::GetProcessHeap(), 0, *ppSid); |
| 321 | if (-1 == ccb) |
| 322 | ExitOnFailure(hr = E_FAIL, "Failed to get size of SID buffer"); |
| 323 | |
| 324 | if (ccb < dwLengthRequired) |
| 325 | { |
| 326 | pSid = (PSID)::HeapReAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, *ppSid, dwLengthRequired); |
| 327 | ExitOnNull(pSid, hr, E_OUTOFMEMORY, "Failed to reallocate buffer for SID, len: %d", dwLengthRequired); |
| 328 | *ppSid = pSid; |
| 329 | } |
| 330 | } |
| 331 | else |
| 332 | { |
| 333 | *ppSid = (PSID)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, dwLengthRequired); |
| 334 | ExitOnNull(*ppSid, hr, E_OUTOFMEMORY, "Failed to allocate buffer for SID, len: %d", dwLengthRequired); |
| 335 | } |
| 336 | |
| 337 | ::InitializeSid(*ppSid, ::GetSidIdentifierAuthority(pDomainSid), ucSubAuthorityCount + (UCHAR)1); |
| 338 | |
| 339 | // copy sub autorities |
| 340 | DWORD i = 0; |
| 341 | for (; i < ucSubAuthorityCount; i++) |
| 342 | *::GetSidSubAuthority(*ppSid, i) = *::GetSidSubAuthority(pDomainSid, i); |
| 343 | *::GetSidSubAuthority(*ppSid, i) = dwRid; |
| 344 | |
| 345 | hr = S_OK; |
| 346 | |
| 347 | LExit: |
| 348 | return hr; |
| 349 | } |
| 350 | |
| 351 | static HRESULT InitLsaUnicodeString( |
| 352 | PLSA_UNICODE_STRING plusStr, |
| 353 | LPCWSTR pwzStr, |
| 354 | SIZE_T dwLen |
| 355 | ) |
| 356 | { |
| 357 | HRESULT hr = S_OK; |
| 358 | |
| 359 | plusStr->Length = (USHORT)dwLen * sizeof(WCHAR); |
| 360 | plusStr->MaximumLength = (USHORT)(dwLen + 1) * sizeof(WCHAR); |
| 361 | |
| 362 | plusStr->Buffer = (WCHAR*)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WCHAR) * (dwLen + 1)); |
| 363 | ExitOnNull(plusStr->Buffer, hr, E_OUTOFMEMORY, "Failed to allocate account name string"); |
| 364 | |
| 365 | hr = StringCchCopyW(plusStr->Buffer, dwLen + 1, pwzStr); |
| 366 | ExitOnFailure(hr, "Failed to copy buffer"); |
| 367 | |
| 368 | hr = S_OK; |
| 369 | |
| 370 | LExit: |
| 371 | return hr; |
| 372 | } |
| 373 | |
| 374 | static void FreeLsaUnicodeString( |
| 375 | PLSA_UNICODE_STRING plusStr |
| 376 | ) |
| 377 | { |
| 378 | if (plusStr->Buffer) |
| 379 | ::HeapFree(::GetProcessHeap(), 0, plusStr->Buffer); |
| 380 | } |