/* $Xorg: sm_process.c,v 1.4 2001/02/09 02:03:30 xorgcvs Exp $ */ /* Copyright 1993, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. */ /* $XFree86$ */ /* * Author: Ralph Mor, X Consortium */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <X11/SM/SMlib.h> #include "SMlibint.h" /* * Check for bad length */ #define CHECK_SIZE_MATCH(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _severity) \ if ((((_actual_len) - SIZEOF (iceMsg)) >> 3) != _expected_len) \ { \ _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \ return; \ } #define CHECK_AT_LEAST_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _severity) \ if ((((_actual_len) - SIZEOF (iceMsg)) >> 3) > _expected_len) \ { \ _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \ return; \ } #define CHECK_COMPLETE_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _pStart, _severity) \ if (((PADDED_BYTES64((_actual_len)) - SIZEOF (iceMsg)) >> 3) \ != _expected_len) \ { \ _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \ IceDisposeCompleteMessage (iceConn, _pStart); \ return; \ } void _SmcProcessMessage (iceConn, clientData, opcode, length, swap, replyWait, replyReadyRet) IceConn iceConn; IcePointer clientData; int opcode; unsigned long length; Bool swap; IceReplyWaitInfo *replyWait; Bool *replyReadyRet; { SmcConn smcConn = (SmcConn) clientData; if (replyWait) *replyReadyRet = False; if (!smcConn->client_id && opcode != SM_RegisterClientReply && opcode != SM_Error) { _IceReadSkip (iceConn, length << 3); _IceErrorBadState (iceConn, _SmcOpcode, opcode, IceFatalToProtocol); return; } switch (opcode) { case SM_Error: { iceErrorMsg *pMsg; char *pData; CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode, length, SIZEOF (iceErrorMsg), IceFatalToProtocol); IceReadCompleteMessage (iceConn, SIZEOF (iceErrorMsg), iceErrorMsg, pMsg, pData); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pData); return; } if (swap) { pMsg->errorClass = lswaps (pMsg->errorClass); pMsg->offendingSequenceNum = lswapl (pMsg->offendingSequenceNum); } if (replyWait && replyWait->minor_opcode_of_request == SM_RegisterClient && pMsg->errorClass == IceBadValue && pMsg->offendingMinorOpcode == SM_RegisterClient && pMsg->offendingSequenceNum == replyWait->sequence_of_request) { /* * For Register Client, the previous ID was bad. */ _SmcRegisterClientReply *reply = (_SmcRegisterClientReply *) (replyWait->reply); reply->status = 0; *replyReadyRet = True; } else { (*_SmcErrorHandler) (smcConn, swap, pMsg->offendingMinorOpcode, pMsg->offendingSequenceNum, pMsg->errorClass, pMsg->severity, (SmPointer) pData); } IceDisposeCompleteMessage (iceConn, pData); break; } case SM_RegisterClientReply: if (!replyWait || replyWait->minor_opcode_of_request != SM_RegisterClient) { _IceReadSkip (iceConn, length << 3); _IceErrorBadState (iceConn, _SmcOpcode, SM_RegisterClientReply, IceFatalToProtocol); } else { smRegisterClientReplyMsg *pMsg; char *pData, *pStart; _SmcRegisterClientReply *reply = (_SmcRegisterClientReply *) (replyWait->reply); #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode, length, SIZEOF (smRegisterClientReplyMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smRegisterClientReplyMsg), smRegisterClientReplyMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; SKIP_ARRAY8 (pData, swap); /* client id */ CHECK_COMPLETE_SIZE (iceConn, _SmcOpcode, opcode, length, pData - pStart + SIZEOF (smRegisterClientReplyMsg), pStart, IceFatalToProtocol); pData = pStart; EXTRACT_ARRAY8_AS_STRING (pData, swap, reply->client_id); reply->status = 1; *replyReadyRet = True; IceDisposeCompleteMessage (iceConn, pStart); } break; case SM_SaveYourself: { smSaveYourselfMsg *pMsg; unsigned char errVal; int errOffset = -1; CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smSaveYourselfMsg), IceFatalToProtocol); IceReadMessageHeader (iceConn, SIZEOF (smSaveYourselfMsg), smSaveYourselfMsg, pMsg); if (!IceValidIO (iceConn)) { return; } if (pMsg->saveType != SmSaveGlobal && pMsg->saveType != SmSaveLocal && pMsg->saveType != SmSaveBoth) { errVal = pMsg->saveType; errOffset = 8; } else if (pMsg->shutdown != 1 && pMsg->shutdown != 0) { errVal = pMsg->shutdown; errOffset = 9; } else if (pMsg->interactStyle != SmInteractStyleNone && pMsg->interactStyle != SmInteractStyleErrors && pMsg->interactStyle != SmInteractStyleAny) { errVal = pMsg->interactStyle; errOffset = 10; } else if (pMsg->fast != 1 && pMsg->fast != 0) { errVal = pMsg->fast; errOffset = 11; } if (errOffset >= 0) { _IceErrorBadValue (iceConn, _SmcOpcode, SM_SaveYourself, errOffset, 1, (IcePointer) &errVal); } else { (*smcConn->callbacks.save_yourself.callback) (smcConn, smcConn->callbacks.save_yourself.client_data, pMsg->saveType, pMsg->shutdown, pMsg->interactStyle, pMsg->fast); smcConn->save_yourself_in_progress = True; if (pMsg->shutdown) smcConn->shutdown_in_progress = True; } break; } case SM_SaveYourselfPhase2: if (!smcConn->phase2_wait) { _IceErrorBadState (iceConn, _SmcOpcode, SM_SaveYourselfPhase2, IceCanContinue); } else { CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smSaveYourselfPhase2Msg), IceFatalToProtocol); (*smcConn->phase2_wait->phase2_proc) (smcConn, smcConn->phase2_wait->client_data); free ((char *) smcConn->phase2_wait); smcConn->phase2_wait = NULL; } break; case SM_Interact: if (!smcConn->interact_waits) { _IceErrorBadState (iceConn, _SmcOpcode, SM_Interact, IceCanContinue); } else { _SmcInteractWait *next = smcConn->interact_waits->next; CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smInteractMsg), IceFatalToProtocol); (*smcConn->interact_waits->interact_proc) (smcConn, smcConn->interact_waits->client_data); free ((char *) smcConn->interact_waits); smcConn->interact_waits = next; } break; case SM_SaveComplete: if (!smcConn->save_yourself_in_progress) { _IceErrorBadState (iceConn, _SmcOpcode, SM_SaveComplete, IceCanContinue); } else { CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smSaveCompleteMsg), IceFatalToProtocol); smcConn->save_yourself_in_progress = False; (*smcConn->callbacks.save_complete.callback) (smcConn, smcConn->callbacks.save_complete.client_data); } break; case SM_Die: CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smDieMsg), IceFatalToProtocol); (*smcConn->callbacks.die.callback) (smcConn, smcConn->callbacks.die.client_data); break; case SM_ShutdownCancelled: if (!smcConn->shutdown_in_progress) { _IceErrorBadState (iceConn, _SmcOpcode, SM_ShutdownCancelled, IceCanContinue); } else { CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode, length, SIZEOF (smShutdownCancelledMsg), IceFatalToProtocol); smcConn->shutdown_in_progress = False; (*smcConn->callbacks.shutdown_cancelled.callback) (smcConn, smcConn->callbacks.shutdown_cancelled.client_data); } break; case SM_PropertiesReply: if (!smcConn->prop_reply_waits) { _IceReadSkip (iceConn, length << 3); _IceErrorBadState (iceConn, _SmcOpcode, SM_PropertiesReply, IceCanContinue); } else { smPropertiesReplyMsg *pMsg; char *pData, *pStart; int numProps; SmProp **props = NULL; _SmcPropReplyWait *next; #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode, length, SIZEOF (smPropertiesReplyMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smPropertiesReplyMsg), smPropertiesReplyMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; SKIP_LISTOF_PROPERTY (pData, swap); CHECK_COMPLETE_SIZE (iceConn, _SmcOpcode, opcode, length, pData - pStart + SIZEOF (smPropertiesReplyMsg), pStart, IceFatalToProtocol); pData = pStart; EXTRACT_LISTOF_PROPERTY (pData, swap, numProps, props); next = smcConn->prop_reply_waits->next; (*smcConn->prop_reply_waits->prop_reply_proc) (smcConn, smcConn->prop_reply_waits->client_data, numProps, props); free ((char *) smcConn->prop_reply_waits); smcConn->prop_reply_waits = next; IceDisposeCompleteMessage (iceConn, pStart); } break; default: { _IceErrorBadMinor (iceConn, _SmcOpcode, opcode, IceCanContinue); _IceReadSkip (iceConn, length << 3); break; } } } void _SmsProcessMessage (iceConn, clientData, opcode, length, swap) IceConn iceConn; IcePointer clientData; int opcode; unsigned long length; Bool swap; { SmsConn smsConn = (SmsConn) clientData; if (!smsConn->client_id && opcode != SM_RegisterClient && opcode != SM_Error) { _IceReadSkip (iceConn, length << 3); _IceErrorBadState (iceConn, _SmsOpcode, opcode, IceFatalToProtocol); return; } switch (opcode) { case SM_Error: { iceErrorMsg *pMsg; char *pData; CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode, length, SIZEOF (iceErrorMsg), IceFatalToProtocol); IceReadCompleteMessage (iceConn, SIZEOF (iceErrorMsg), iceErrorMsg, pMsg, pData); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pData); return; } if (swap) { pMsg->errorClass = lswaps (pMsg->errorClass); pMsg->offendingSequenceNum = lswapl (pMsg->offendingSequenceNum); } (*_SmsErrorHandler) (smsConn, swap, pMsg->offendingMinorOpcode, pMsg->offendingSequenceNum, pMsg->errorClass, pMsg->severity, (SmPointer) pData); IceDisposeCompleteMessage (iceConn, pData); break; } case SM_RegisterClient: { smRegisterClientMsg *pMsg; char *pData, *pStart; char *previousId; int idLen; #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode, length, SIZEOF (smRegisterClientMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smRegisterClientMsg), smRegisterClientMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; SKIP_ARRAY8 (pData, swap); /* previous id */ CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode, length, pData - pStart + SIZEOF (smRegisterClientMsg), pStart, IceFatalToProtocol); pData = pStart; EXTRACT_ARRAY8 (pData, swap, idLen, previousId); if (*previousId == '\0') { free (previousId); previousId = NULL; } if (!(*smsConn->callbacks.register_client.callback) (smsConn, smsConn->callbacks.register_client.manager_data, previousId)) { /* * The previoudId was bad. Generate BadValue error. */ _IceErrorBadValue (smsConn->iceConn, _SmsOpcode, SM_RegisterClient, 8, ARRAY8_BYTES (idLen), (IcePointer) pStart); } IceDisposeCompleteMessage (iceConn, pStart); break; } case SM_InteractRequest: if (!smsConn->save_yourself_in_progress || smsConn->interaction_allowed == SmInteractStyleNone) { _IceErrorBadState (iceConn, _SmsOpcode, SM_InteractRequest, IceCanContinue); } else { smInteractRequestMsg *pMsg; CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smInteractRequestMsg), IceFatalToProtocol); IceReadSimpleMessage (iceConn, smInteractRequestMsg, pMsg); if (pMsg->dialogType != SmDialogNormal && pMsg->dialogType != SmDialogError) { unsigned char errVal = pMsg->dialogType; _IceErrorBadValue (iceConn, _SmsOpcode, SM_InteractRequest, 2, 1, (IcePointer) &errVal); } else if (pMsg->dialogType == SmDialogNormal && smsConn->interaction_allowed != SmInteractStyleAny) { _IceErrorBadState (iceConn, _SmsOpcode, SM_InteractRequest, IceCanContinue); } else { (*smsConn->callbacks.interact_request.callback) (smsConn, smsConn->callbacks.interact_request.manager_data, pMsg->dialogType); } } break; case SM_InteractDone: if (!smsConn->interact_in_progress) { _IceErrorBadState (iceConn, _SmsOpcode, SM_InteractDone, IceCanContinue); } else { smInteractDoneMsg *pMsg; CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smInteractDoneMsg), IceFatalToProtocol); IceReadSimpleMessage (iceConn, smInteractDoneMsg, pMsg); if (pMsg->cancelShutdown != 1 && pMsg->cancelShutdown != 0) { unsigned char errVal = pMsg->cancelShutdown; _IceErrorBadValue (iceConn, _SmsOpcode, SM_InteractDone, 2, 1, (IcePointer) &errVal); } else if (pMsg->cancelShutdown && !smsConn->can_cancel_shutdown) { _IceErrorBadState (iceConn, _SmsOpcode, SM_InteractDone, IceCanContinue); } else { smsConn->interact_in_progress = False; (*smsConn->callbacks.interact_done.callback) (smsConn, smsConn->callbacks.interact_done.manager_data, pMsg->cancelShutdown); } } break; case SM_SaveYourselfRequest: { smSaveYourselfRequestMsg *pMsg; unsigned char errVal; int errOffset = -1; CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smSaveYourselfRequestMsg), IceFatalToProtocol); IceReadMessageHeader (iceConn, SIZEOF (smSaveYourselfRequestMsg), smSaveYourselfRequestMsg, pMsg); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pMsg); return; } if (pMsg->saveType != SmSaveGlobal && pMsg->saveType != SmSaveLocal && pMsg->saveType != SmSaveBoth) { errVal = pMsg->saveType; errOffset = 8; } else if (pMsg->shutdown != 1 && pMsg->shutdown != 0) { errVal = pMsg->shutdown; errOffset = 9; } else if (pMsg->interactStyle != SmInteractStyleNone && pMsg->interactStyle != SmInteractStyleErrors && pMsg->interactStyle != SmInteractStyleAny) { errVal = pMsg->interactStyle; errOffset = 10; } else if (pMsg->fast != 1 && pMsg->fast != 0) { errVal = pMsg->fast; errOffset = 11; } else if (pMsg->global != 1 && pMsg->global != 0) { errVal = pMsg->fast; errOffset = 11; } if (errOffset >= 0) { _IceErrorBadValue (iceConn, _SmsOpcode, SM_SaveYourselfRequest, errOffset, 1, (IcePointer) &errVal); } else { (*smsConn->callbacks.save_yourself_request.callback) (smsConn, smsConn->callbacks.save_yourself_request.manager_data, pMsg->saveType, pMsg->shutdown, pMsg->interactStyle, pMsg->fast, pMsg->global); } break; } case SM_SaveYourselfPhase2Request: if (!smsConn->save_yourself_in_progress) { _IceErrorBadState (iceConn, _SmsOpcode, SM_SaveYourselfPhase2Request, IceCanContinue); } else { CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smSaveYourselfPhase2RequestMsg), IceFatalToProtocol); (*smsConn->callbacks.save_yourself_phase2_request.callback) ( smsConn, smsConn->callbacks. save_yourself_phase2_request.manager_data); } break; case SM_SaveYourselfDone: if (!smsConn->save_yourself_in_progress) { _IceErrorBadState (iceConn, _SmsOpcode, SM_SaveYourselfDone, IceCanContinue); } else { smSaveYourselfDoneMsg *pMsg; CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smSaveYourselfDoneMsg), IceFatalToProtocol); IceReadSimpleMessage (iceConn, smSaveYourselfDoneMsg, pMsg); if (pMsg->success != 1 && pMsg->success != 0) { unsigned char errVal = pMsg->success; _IceErrorBadValue (iceConn, _SmsOpcode, SM_SaveYourselfDone, 2, 1, (IcePointer) &errVal); } else { smsConn->save_yourself_in_progress = False; smsConn->interaction_allowed = SmInteractStyleNone; (*smsConn->callbacks.save_yourself_done.callback) (smsConn, smsConn->callbacks.save_yourself_done.manager_data, pMsg->success); } } break; case SM_CloseConnection: { smCloseConnectionMsg *pMsg; char *pData, *pStart; int count, i; char **reasonMsgs = NULL; #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode, length, SIZEOF (smCloseConnectionMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smCloseConnectionMsg), smCloseConnectionMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; EXTRACT_CARD32 (pData, swap, count); pData += 4; for (i = 0; i < count; i++) SKIP_ARRAY8 (pData, swap); CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode, length, pData - pStart + SIZEOF (smCloseConnectionMsg), pStart, IceFatalToProtocol); pData = pStart + 8; reasonMsgs = (char **) malloc (count * sizeof (char *)); for (i = 0; i < count; i++) EXTRACT_ARRAY8_AS_STRING (pData, swap, reasonMsgs[i]); IceDisposeCompleteMessage (iceConn, pStart); (*smsConn->callbacks.close_connection.callback) (smsConn, smsConn->callbacks.close_connection.manager_data, count, reasonMsgs); break; } case SM_SetProperties: { smSetPropertiesMsg *pMsg; char *pData, *pStart; SmProp **props = NULL; int numProps; #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode, length, SIZEOF (smSetPropertiesMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smSetPropertiesMsg), smSetPropertiesMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; SKIP_LISTOF_PROPERTY (pData, swap); CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode, length, pData - pStart + SIZEOF (smSetPropertiesMsg), pStart, IceFatalToProtocol); pData = pStart; EXTRACT_LISTOF_PROPERTY (pData, swap, numProps, props); (*smsConn->callbacks.set_properties.callback) (smsConn, smsConn->callbacks.set_properties.manager_data, numProps, props); IceDisposeCompleteMessage (iceConn, pStart); break; } case SM_DeleteProperties: { smDeletePropertiesMsg *pMsg; char *pData, *pStart; int count, i; char **propNames = NULL; #if 0 /* No-op */ CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode, length, SIZEOF (smDeletePropertiesMsg), IceFatalToProtocol); #endif IceReadCompleteMessage (iceConn, SIZEOF (smDeletePropertiesMsg), smDeletePropertiesMsg, pMsg, pStart); if (!IceValidIO (iceConn)) { IceDisposeCompleteMessage (iceConn, pStart); return; } pData = pStart; EXTRACT_CARD32 (pData, swap, count); pData += 4; for (i = 0; i < count; i++) SKIP_ARRAY8 (pData, swap); /* prop names */ CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode, length, pData - pStart + SIZEOF (smDeletePropertiesMsg), pStart, IceFatalToProtocol); pData = pStart + 8; propNames = (char **) malloc (count * sizeof (char *)); for (i = 0; i < count; i++) EXTRACT_ARRAY8_AS_STRING (pData, swap, propNames[i]); IceDisposeCompleteMessage (iceConn, pStart); (*smsConn->callbacks.delete_properties.callback) (smsConn, smsConn->callbacks.delete_properties.manager_data, count, propNames); break; } case SM_GetProperties: CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode, length, SIZEOF (smGetPropertiesMsg), IceFatalToProtocol); (*smsConn->callbacks.get_properties.callback) (smsConn, smsConn->callbacks.get_properties.manager_data); break; default: { _IceErrorBadMinor (iceConn, _SmsOpcode, opcode, IceCanContinue); _IceReadSkip (iceConn, length << 3); break; } } }