WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/ipc/sysipc.c



                (unative_t) &TASK->phones[phoneid]);
        }
    } else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {
        /* If the users accepted call, connect */
        if (!IPC_GET_RETVAL(answer->data)) {
            ipc_phone_connect((phone_t *) IPC_GET_ARG5(*olddata),
                &TASK->answerbox);
        }
    } else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {
        if (!IPC_GET_RETVAL(answer->data)) {
            /* Accepted, handle as_area receipt */

    case IPC_M_CONNECT_ME_TO:
        newphid = phone_alloc();
        if (newphid < 0)
            return ELIMIT;
        /* Set arg3 for server */
        IPC_SET_ARG5(call->data, (unative_t) &TASK->phones[newphid]);
        call->flags |= IPC_CALL_CONN_ME_TO;
        call->priv = newphid;
        break;
    case IPC_M_AS_AREA_SEND:
        size = as_area_get_size(IPC_GET_ARG1(call->data));

 
    if (call->flags & IPC_CALL_CONN_ME_TO) {
        if (IPC_GET_RETVAL(call->data))
            phone_dealloc(call->priv);
        else
            IPC_SET_ARG5(call->data, call->priv);
    }
}
 
/** Do basic kernel processing of received call request.
 *

 * Warning: When implementing support for changing additional payload
 *      arguments, make sure that ARG3 is not rewritten for certain
 *      system IPC
 */
unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,
    unative_t method, unative_t arg1, unative_t arg2, int mode)
{
    call_t *call;
    phone_t *phone;
 
    call = get_call(callid);

        return EPERM;
    }
 
    /*
     * Userspace is not allowed to change method of system methods on
     * forward, allow changing ARG1, ARG2 and ARG3 by means of method,
     * arg1 and arg2.
     * If the method is immutable, don't change anything.
     */
    if (!method_is_immutable(IPC_GET_METHOD(call->data))) {
        if (method_is_system(IPC_GET_METHOD(call->data))) {
            if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME)
                phone_dealloc(IPC_GET_ARG5(call->data));
 
            IPC_SET_ARG1(call->data, method);
            IPC_SET_ARG2(call->data, arg1);
            IPC_SET_ARG3(call->data, arg2);
        } else {
            IPC_SET_METHOD(call->data, method);
            IPC_SET_ARG1(call->data, arg1);
            IPC_SET_ARG2(call->data, arg2);
        }
    }
 
    return ipc_forward(call, phone, &TASK->answerbox, mode);
}

Rev 2622	Rev 2635
Line 189...	Line 189...
189	(unative_t) &TASK->phones[phoneid]);	189	(unative_t) &TASK->phones[phoneid]);
190	}	190	}
191	} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {	191	} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {
192	/* If the users accepted call, connect */	192	/* If the users accepted call, connect */
193	if (!IPC_GET_RETVAL(answer->data)) {	193	if (!IPC_GET_RETVAL(answer->data)) {
194	ipc_phone_connect((phone_t ) IPC_GET_ARG3(olddata),	194	ipc_phone_connect((phone_t ) IPC_GET_ARG5(olddata),
195	&TASK->answerbox);	195	&TASK->answerbox);
196	}	196	}
197	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {	197	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {
198	if (!IPC_GET_RETVAL(answer->data)) {	198	if (!IPC_GET_RETVAL(answer->data)) {
199	/* Accepted, handle as_area receipt */	199	/* Accepted, handle as_area receipt */
Line 268...	Line 268...
268	case IPC_M_CONNECT_ME_TO:	268	case IPC_M_CONNECT_ME_TO:
269	newphid = phone_alloc();	269	newphid = phone_alloc();
270	if (newphid < 0)	270	if (newphid < 0)
271	return ELIMIT;	271	return ELIMIT;
272	/* Set arg3 for server */	272	/* Set arg3 for server */
273	IPC_SET_ARG3(call->data, (unative_t) &TASK->phones[newphid]);	273	IPC_SET_ARG5(call->data, (unative_t) &TASK->phones[newphid]);
274	call->flags \|= IPC_CALL_CONN_ME_TO;	274	call->flags \|= IPC_CALL_CONN_ME_TO;
275	call->priv = newphid;	275	call->priv = newphid;
276	break;	276	break;
277	case IPC_M_AS_AREA_SEND:	277	case IPC_M_AS_AREA_SEND:
278	size = as_area_get_size(IPC_GET_ARG1(call->data));	278	size = as_area_get_size(IPC_GET_ARG1(call->data));
Line 316...	Line 316...
316		316
317	if (call->flags & IPC_CALL_CONN_ME_TO) {	317	if (call->flags & IPC_CALL_CONN_ME_TO) {
318	if (IPC_GET_RETVAL(call->data))	318	if (IPC_GET_RETVAL(call->data))
319	phone_dealloc(call->priv);	319	phone_dealloc(call->priv);
320	else	320	else
321	IPC_SET_ARG3(call->data, call->priv);	321	IPC_SET_ARG5(call->data, call->priv);
322	}	322	}
323	}	323	}
324		324
325	/** Do basic kernel processing of received call request.	325	/** Do basic kernel processing of received call request.
326	*	326	*
Line 550...	Line 550...
550	* Warning: When implementing support for changing additional payload	550	* Warning: When implementing support for changing additional payload
551	* arguments, make sure that ARG3 is not rewritten for certain	551	* arguments, make sure that ARG3 is not rewritten for certain
552	* system IPC	552	* system IPC
553	*/	553	*/
554	unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,	554	unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,
555	unative_t method, unative_t arg1, int mode)	555	unative_t method, unative_t arg1, unative_t arg2, int mode)
556	{	556	{
557	call_t *call;	557	call_t *call;
558	phone_t *phone;	558	phone_t *phone;
559		559
560	call = get_call(callid);	560	call = get_call(callid);
Line 575...	Line 575...
575	return EPERM;	575	return EPERM;
576	}	576	}
577		577
578	/*	578	/*
579	* Userspace is not allowed to change method of system methods on	579	* Userspace is not allowed to change method of system methods on
580	* forward, allow changing ARG1 and ARG2 by means of method and arg1.	580	* forward, allow changing ARG1, ARG2 and ARG3 by means of method,
-		581	* arg1 and arg2.
581	* If the method is immutable, don't change anything.	582	* If the method is immutable, don't change anything.
582	*/	583	*/
583	if (!method_is_immutable(IPC_GET_METHOD(call->data))) {	584	if (!method_is_immutable(IPC_GET_METHOD(call->data))) {
584	if (method_is_system(IPC_GET_METHOD(call->data))) {	585	if (method_is_system(IPC_GET_METHOD(call->data))) {
585	if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME)	586	if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME)
586	phone_dealloc(IPC_GET_ARG3(call->data));	587	phone_dealloc(IPC_GET_ARG5(call->data));
587		588
588	IPC_SET_ARG1(call->data, method);	589	IPC_SET_ARG1(call->data, method);
589	IPC_SET_ARG2(call->data, arg1);	590	IPC_SET_ARG2(call->data, arg1);
-		591	IPC_SET_ARG3(call->data, arg2);
590	} else {	592	} else {
591	IPC_SET_METHOD(call->data, method);	593	IPC_SET_METHOD(call->data, method);
592	IPC_SET_ARG1(call->data, arg1);	594	IPC_SET_ARG1(call->data, arg1);
-		595	IPC_SET_ARG2(call->data, arg2);
593	}	596	}
594	}	597	}
595		598
596	return ipc_forward(call, phone, &TASK->answerbox, mode);	599	return ipc_forward(call, phone, &TASK->answerbox, mode);
597	}	600	}

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/src/ipc/sysipc.c @ 4263 – Rev 2622 → 2635