static int BSslHandleAsync(SslBindCtx *pCtx, int iCode, int iDefError, int iTimeo)
{
int iError, iResult = 0;
SYS_fd_set FdSet;
if ((iError = SSL_get_error(pCtx->pSSL, iCode)) != SSL_ERROR_NONE) {
SYS_FD_ZERO(&FdSet);
SYS_FD_SET(pCtx->SockFD, &FdSet);
if (iError == SSL_ERROR_WANT_READ) {
if (SysSelect((long) pCtx->SockFD + 1, &FdSet, NULL,
NULL, iTimeo) < 0)
return ErrGetErrorCode();
iResult = 1;
} else if (iError == SSL_ERROR_WANT_WRITE) {
if (SysSelect((long) pCtx->SockFD + 1, NULL, &FdSet,
NULL, iTimeo) < 0)
return ErrGetErrorCode();
iResult = 1;
} else {
ErrSetErrorCode(iDefError);
iResult = iDefError;
}
}
return iResult;
}
int UPopCheckMailboxSize(UserInfo *pUI, SYS_OFF_T *pllAvailSpace)
{
SYS_OFF_T llMBSize = 0, llProbeSize = (pllAvailSpace != NULL) ? *pllAvailSpace: 0;
unsigned long ulNumMessages = 0;
if (UPopGetMailboxSize(pUI, llMBSize, ulNumMessages) < 0)
return ErrGetErrorCode();
pszMaxMBSize = UsrGetUserInfoVar(pUI, "MaxMBSize");
if (pszMaxMBSize != NULL) {
SYS_OFF_T llMaxMBSize = Sys_atoi64(pszMaxMBSize) * 1024;
SysFree(pszMaxMBSize);
if (llMaxMBSize != 0 && (llMBSize + llProbeSize >= llMaxMBSize)) {
ErrSetErrorCode(ERR_MAILBOX_SIZE);
return ERR_MAILBOX_SIZE;
}
if (pllAvailSpace != NULL)
*pllAvailSpace = (llMaxMBSize != 0 ? llMaxMBSize - llMBSize:
MaxSignedType(SYS_OFF_T));
} else if (pllAvailSpace != NULL)
*pllAvailSpace = MaxSignedType(SYS_OFF_T);
return 0;
}
int UPopGetMailboxSize(UserInfo *pUI, SYS_OFF_T &llMBSize, unsigned long &ulNumMessages)
{
char szMBPath[SYS_MAX_PATH];
UsrGetMailboxPath(pUI, szMBPath, sizeof(szMBPath), 0);
char szResLock[SYS_MAX_PATH];
RLCK_HANDLE hResLock = RLckLockSH(CfgGetBasedPath(szMBPath, szResLock,
sizeof(szResLock)));
if (hResLock == INVALID_RLCK_HANDLE)
return ErrGetErrorCode();
llMBSize = 0;
ulNumMessages = 0;
if (MscGetDirectorySize(szMBPath, true, llMBSize, ulNumMessages,
UPopMailFileNameFilter) < 0) {
ErrorPush();
RLckUnlockSH(hResLock);
return ErrorPop();
}
RLckUnlockSH(hResLock);
return 0;
}
static int HashGrow(Hash *pHash)
{
unsigned long i, ulHIdx, ulHMask;
SysListHead *pBkts, *pHead, *pPos;
HashNode *pHNode;
ulHMask = pHash->ulHMask + 1;
if (ulHMask & HMASK_TOP_BIT)
return 0;
ulHMask = (ulHMask << 1) - 1;
if ((pBkts = (SysListHead *)
SysAlloc((ulHMask + 1) * sizeof(SysListHead))) == NULL)
return ErrGetErrorCode();
for (i = 0; i <= ulHMask; i++)
SYS_INIT_LIST_HEAD(&pBkts[i]);
for (i = 0; i <= pHash->ulHMask; i++) {
pHead = &pHash->pBkts[i];
while ((pPos = SYS_LIST_FIRST(pHead)) != NULL) {
pHNode = SYS_LIST_ENTRY(pPos, HashNode, Lnk);
SYS_LIST_DEL(&pHNode->Lnk);
ulHIdx = (*pHash->Ops.pGetHashVal)(pHash->Ops.pPrivate,
&pHNode->Key) & ulHMask;
SYS_LIST_ADDT(&pHNode->Lnk, &pBkts[ulHIdx]);
}
}
SysFree(pHash->pBkts);
pHash->pBkts = pBkts;
pHash->ulHMask = ulHMask;
return 0;
}
int BSckBufferInit(BSockLineBuffer *pBLB, int iSize)
{
if (iSize <= 0)
iSize = BSOCK_STD_BUFFER_SIZE;
if ((pBLB->pszBuffer = (char *) SysAlloc(iSize)) == NULL)
return ErrGetErrorCode();
pBLB->iSize = iSize;
return 0;
}
int BSckSendData(BSOCK_HANDLE hBSock, char const *pszBuffer, int iSize, int iTimeout)
{
BuffSocketData *pBSD = (BuffSocketData *) hBSock;
SysLogMessage(LOG_LEV_DEBUG, "socket write data (len = %d)\n", iSize);
if (BSckWriteLL(pBSD, pszBuffer, iSize, iTimeout) != iSize)
return ErrGetErrorCode();
return iSize;
}
int BSckSendString(BSOCK_HANDLE hBSock, char const *pszBuffer, int iTimeout)
{
BuffSocketData *pBSD = (BuffSocketData *) hBSock;
char *pszSendBuffer = (char *) SysAlloc(strlen(pszBuffer) + 3);
if (pszSendBuffer == NULL)
return ErrGetErrorCode();
SysLogMessage(LOG_LEV_DEBUG, "socket write line: [%s]\n", pszBuffer);
sprintf(pszSendBuffer, "%s\r\n", pszBuffer);
int iSendLength = (int)strlen(pszSendBuffer);
if (BSckWriteLL(pBSD, pszSendBuffer, iSendLength, iTimeout) != iSendLength) {
SysFree(pszSendBuffer);
return ErrGetErrorCode();
}
SysFree(pszSendBuffer);
return iSendLength;
}
static int UPopBuildMessageList(UserInfo *pUI, SysListHead *pMsgList,
int *piMsgCount, SYS_OFF_T *pllMBSize)
{
char szMBPath[SYS_MAX_PATH];
UsrGetMailboxPath(pUI, szMBPath, sizeof(szMBPath), 0);
char szResLock[SYS_MAX_PATH];
RLCK_HANDLE hResLock = RLckLockEX(CfgGetBasedPath(szMBPath, szResLock,
sizeof(szResLock)));
if (hResLock == INVALID_RLCK_HANDLE)
return ErrGetErrorCode();
SYS_INIT_LIST_HEAD(pMsgList);
int iMsgCount = 0;
SYS_OFF_T llMBSize = 0;
if (iMailboxType == XMAIL_MAILBOX) {
if (UPopFillMessageList(szMBPath, NULL, pMsgList, iMsgCount,
llMBSize) < 0) {
ErrorPush();
UPopFreeMessageList(pMsgList);
RLckUnlockEX(hResLock);
return ErrorPop();
}
} else {
int iScanCur = UsrGetUserInfoVarInt(pUI, "Pop3ScanCur", 0);
if (UPopFillMessageList(szMBPath, "new", pMsgList, iMsgCount,
llMBSize) < 0 ||
(iScanCur > 0 &&
UPopFillMessageList(szMBPath, "cur", pMsgList, iMsgCount,
llMBSize) < 0)) {
ErrorPush();
UPopFreeMessageList(pMsgList);
RLckUnlockEX(hResLock);
return ErrorPop();
}
}
RLckUnlockEX(hResLock);
if (piMsgCount != NULL)
*piMsgCount = iMsgCount;
if (pllMBSize != NULL)
*pllMBSize = llMBSize;
return 0;
}
int HashAdd(HASH_HANDLE hHash, HashNode *pHNode)
{
Hash *pHash = (Hash *) hHash;
unsigned long ulHIdx;
SysListHead *pHead;
if (pHash->ulCount >= pHash->ulHMask && HashGrow(pHash) < 0)
return ErrGetErrorCode();
ulHIdx = (*pHash->Ops.pGetHashVal)(pHash->Ops.pPrivate,
&pHNode->Key) & pHash->ulHMask;
pHead = &pHash->pBkts[ulHIdx];
SYS_LIST_ADDT(&pHNode->Lnk, pHead);
pHash->ulCount++;
return 0;
}
int BSckVSendString(BSOCK_HANDLE hBSock, int iTimeout, char const *pszFormat, ...)
{
char *pszBuffer = NULL;
StrVSprint(pszBuffer, pszFormat, pszFormat);
if (pszBuffer == NULL)
return ErrGetErrorCode();
if (BSckSendString(hBSock, pszBuffer, iTimeout) < 0) {
ErrorPush();
SysFree(pszBuffer);
return ErrorPop();
}
SysFree(pszBuffer);
return 0;
}
static int BSslCtx__SendFile(void *pPrivate, char const *pszFilePath, SYS_OFF_T llOffStart,
SYS_OFF_T llOffEnd, int iTimeo)
{
SslBindCtx *pCtx = (SslBindCtx *) pPrivate;
SYS_MMAP hMap;
SYS_OFF_T llSize, llAlnOff;
void *pMapAddr;
char *pCurAddr;
if ((hMap = SysCreateMMap(pszFilePath, SYS_MMAP_READ)) == SYS_INVALID_MMAP)
return ErrGetErrorCode();
llSize = SysMMapSize(hMap);
if (llOffEnd == -1)
llOffEnd = llSize;
if (llOffStart > llSize || llOffEnd > llSize || llOffStart > llOffEnd) {
SysCloseMMap(hMap);
ErrSetErrorCode(ERR_INVALID_PARAMETER);
return ERR_INVALID_PARAMETER;
}
llAlnOff = SysMMapOffsetAlign(hMap, llOffStart);
if ((pMapAddr = SysMapMMap(hMap, llAlnOff,
(SYS_SIZE_T) (llOffEnd - llAlnOff))) == NULL) {
ErrorPush();
SysCloseMMap(hMap);
return ErrorPop();
}
pCurAddr = (char *) pMapAddr + (llOffStart - llAlnOff);
while (llOffStart < llOffEnd) {
int iSize = (int) Min(BSSL_WRITE_BLKSIZE, llOffEnd - llOffStart), iWrite;
if ((iWrite = BSslWriteLL(pCtx, pCurAddr, iSize, iTimeo)) < 0) {
ErrorPush();
SysUnmapMMap(hMap, pMapAddr, (SYS_SIZE_T) (llOffEnd - llAlnOff));
SysCloseMMap(hMap);
return ErrorPop();
}
pCurAddr += iWrite;
llOffStart += iWrite;
}
SysUnmapMMap(hMap, pMapAddr, (SYS_SIZE_T) (llOffEnd - llAlnOff));
SysCloseMMap(hMap);
return 0;
}
static int BSslAllocCtx(SslBindCtx **ppCtx, SYS_SOCKET SockFD, SSL_CTX *pSCtx, SSL *pSSL)
{
SslBindCtx *pCtx;
if ((pCtx = (SslBindCtx *) SysAlloc(sizeof(SslBindCtx))) == NULL)
return ErrGetErrorCode();
pCtx->IOOps.pPrivate = pCtx;
pCtx->IOOps.pName = BSslCtx__Name;
pCtx->IOOps.pFree = BSslCtx__Free;
pCtx->IOOps.pRead = BSslCtx__Read;
pCtx->IOOps.pWrite = BSslCtx__Write;
pCtx->IOOps.pSendFile = BSslCtx__SendFile;
pCtx->SockFD = SockFD;
pCtx->pSCtx = pSCtx;
pCtx->pSSL = pSSL;
*ppCtx = pCtx;
return 0;
}
int RLckInitLockers(void)
{
/* Create resource locking mutex */
if ((hRLMutex = SysCreateMutex()) == SYS_INVALID_MUTEX)
return ErrGetErrorCode();
/* Initialize wait gates */
for (int i = 0; i < STD_WAIT_GATES; i++) {
if ((RLGates[i].hSemaphore = SysCreateSemaphore(0,
SYS_DEFAULT_MAXCOUNT)) ==
SYS_INVALID_SEMAPHORE) {
ErrorPush();
for (--i; i >= 0; i--) {
SysFree(RLGates[i].pResList);
SysCloseSemaphore(RLGates[i].hSemaphore);
}
SysCloseMutex(hRLMutex);
return ErrorPop();
}
RLGates[i].iWaitingProcesses = 0;
RLGates[i].iHashSize = STD_RES_HASH_SIZE;
if ((RLGates[i].pResList = (SysListHead *)
SysAlloc(RLGates[i].iHashSize * sizeof(SysListHead))) == NULL) {
ErrorPush();
SysCloseSemaphore(RLGates[i].hSemaphore);
for (--i; i >= 0; i--) {
SysFree(RLGates[i].pResList);
SysCloseSemaphore(RLGates[i].hSemaphore);
}
SysCloseMutex(hRLMutex);
return ErrorPop();
}
for (int j = 0; j < RLGates[i].iHashSize; j++)
SYS_INIT_LIST_HEAD(&RLGates[i].pResList[j]);
}
return 0;
}
int BSslInit(void)
{
int i, iNumLocks = CRYPTO_num_locks();
if ((pSslMtxs = (SYS_MUTEX *) SysAlloc(iNumLocks * sizeof(SYS_MUTEX))) == NULL)
return ErrGetErrorCode();
for (i = 0; i < iNumLocks; i++) {
if ((pSslMtxs[i] = SysCreateMutex()) == SYS_INVALID_MUTEX) {
ErrorPush();
for (i--; i >= 0; i--)
SysCloseMutex(pSslMtxs[i]);
SysFreeNullify(pSslMtxs);
return ErrorPop();
}
}
SSL_load_error_strings();
SSLeay_add_ssl_algorithms();
CRYPTO_set_id_callback(SysGetCurrentThreadId);
CRYPTO_set_locking_callback(BSslLockingCB);
SysAddThreadExitHook(BSslThreadExit, NULL);
return 0;
}
int RLckCleanupLockers(void)
{
if (SysLockMutex(hRLMutex, SYS_INFINITE_TIMEOUT) < 0)
return ErrGetErrorCode();
for (int i = 0; i < STD_WAIT_GATES; i++) {
for (int j = 0; j < RLGates[i].iHashSize; j++) {
SysListHead *pHead = &RLGates[i].pResList[j];
SysListHead *pLLink;
while ((pLLink = SYS_LIST_FIRST(pHead)) != NULL) {
ResLockEntry *pRLE = SYS_LIST_ENTRY(pLLink, ResLockEntry, LLink);
SYS_LIST_DEL(&pRLE->LLink);
RLckFreeEntry(pRLE);
}
}
SysFree(RLGates[i].pResList);
SysCloseSemaphore(RLGates[i].hSemaphore);
}
SysUnlockMutex(hRLMutex);
SysCloseMutex(hRLMutex);
return 0;
}
int BSslBindServer(BSOCK_HANDLE hBSock, SslServerBind const *pSSLB,
int (*pfEnvCB)(void *, int, void const *), void *pPrivate)
{
int iError;
SYS_SOCKET SockFD;
SSL_METHOD const *pMethod;
SSL_CTX *pSCtx;
SSL *pSSL;
X509 *pCert;
SslBindCtx *pCtx;
pMethod = SSLv23_server_method();
if ((pSCtx = SSL_CTX_new((SSL_METHOD *) pMethod)) == NULL) {
ErrSetErrorCode(ERR_SSLCTX_CREATE);
return ERR_SSLCTX_CREATE;
}
SSL_CTX_set_session_cache_mode(pSCtx, SSL_SESS_CACHE_OFF);
if (BSslSetupVerify(pSCtx, pSSLB) < 0) {
SSL_CTX_free(pSCtx);
return ErrGetErrorCode();
}
if ((pSSL = SSL_new(pSCtx)) == NULL) {
SSL_CTX_free(pSCtx);
ErrSetErrorCode(ERR_SSL_CREATE);
return ERR_SSL_CREATE;
}
SockFD = BSckGetAttachedSocket(hBSock);
/*
* We want blocking sockets during the initial SSL negotiation.
*/
SysBlockSocket(SockFD, 1);
SSL_set_fd(pSSL, SockFD);
if (SSL_accept(pSSL) == -1) {
SysBlockSocket(SockFD, -1);
SSL_free(pSSL);
SSL_CTX_free(pSCtx);
ErrSetErrorCode(ERR_SSL_ACCEPT);
return ERR_SSL_ACCEPT;
}
SSL_CTX_set_app_data(pSCtx, NULL);
/*
* Client may not supply a certificate.
*/
iError = 0;
if (pfEnvCB != NULL &&
(pCert = SSL_get_peer_certificate(pSSL)) != NULL) {
iError = BSslEnvExport(pSCtx, pSSL, pCert, pfEnvCB, pPrivate);
X509_free(pCert);
}
if (iError < 0 ||
BSslAllocCtx(&pCtx, SockFD, pSCtx, pSSL) < 0) {
ErrorPush();
SysBlockSocket(SockFD, -1);
SSL_free(pSSL);
SSL_CTX_free(pSCtx);
return ErrorPop();
}
/*
* Need to use non-blocking socket to implement read/write timeouts.
*/
SysBlockSocket(SockFD, 0);
BSckSetIOops(hBSock, &pCtx->IOOps);
return 0;
}