示例#1
0
/*---------------------------------------------------------------------------*
 *	Q.921 timer T200 timeout function
 *---------------------------------------------------------------------------*/
static void
i4b_T200_timeout(l2_softc_t *l2sc)
{
	NDBGL2(L2_T_ERR, "bri %d, RC = %d", l2sc->drv->bri, l2sc->RC);
	i4b_next_l2state(l2sc, l2sc->drv, EV_T200EXP);
}
示例#2
0
/*---------------------------------------------------------------------------*
 *	process a received U-frame
 *---------------------------------------------------------------------------*/
void
i4b_rxd_u_frame(int unit, struct mbuf *m)
{
	l2_softc_t *l2sc = &l2_softc[unit];
	u_char *ptr = m->m_data;

	int sapi = GETSAPI(*(ptr + OFF_SAPI));
	int tei = GETTEI(*(ptr + OFF_TEI));	
	int pfbit = GETUPF(*(ptr + OFF_CNTL));
	
	switch(*(ptr + OFF_CNTL) & ~UPFBIT)
	{
		/* commands */

		case SABME:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{
				l2sc->stat.rx_sabme++;
				NDBGL2(L2_U_MSG, "SABME, sapi = %d, tei = %d", sapi, tei);
				l2sc->rxd_PF = pfbit;
				i4b_next_l2state(l2sc, EV_RXSABME);
			}
			i4b_Dfreembuf(m);
			break;

		case UI:
			if(sapi == SAPI_L2M &&
			   tei == GROUP_TEI &&
			   *(ptr + OFF_MEI) == MEI)
			{
				/* layer 2 management (SAPI = 63) */
				l2sc->stat.rx_tei++;
				i4b_tei_rxframe(unit, m);
			}
			else if(sapi == SAPI_CCP && tei == GROUP_TEI)
			{
				/* call control (SAPI = 0) */
				l2sc->stat.rx_ui++;
				/* strip ui header */
				m_adj(m, UI_HDR_LEN);
				/* to upper layer */
				DL_Unit_Data_Ind(unit, m);
			}
			else
			{
				l2sc->stat.err_rx_badui++;
				NDBGL2(L2_U_ERR, "unknown UI frame!");
				i4b_Dfreembuf(m);				
			}
			break;
			
		case DISC:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{		
				l2sc->stat.rx_disc++;
				NDBGL2(L2_U_MSG, "DISC, sapi = %d, tei = %d", sapi, tei);
				l2sc->rxd_PF = pfbit;
				i4b_next_l2state(l2sc, EV_RXDISC);
			}
			i4b_Dfreembuf(m);
			break;

		case XID:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{		
				l2sc->stat.rx_xid++;
				NDBGL2(L2_U_MSG, "XID, sapi = %d, tei = %d", sapi, tei);
			}
			i4b_Dfreembuf(m);			
			break;
			
		/* responses */

		case DM:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{		
				l2sc->stat.rx_dm++;
				NDBGL2(L2_U_MSG, "DM, sapi = %d, tei = %d", sapi, tei);
				i4b_print_frame(m->m_len, m->m_data);
				l2sc->rxd_PF = pfbit;
				i4b_next_l2state(l2sc, EV_RXDM);
			}
			i4b_Dfreembuf(m);
			break;
			
		case UA:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{		
				l2sc->stat.rx_ua++;
				NDBGL2(L2_U_MSG, "UA, sapi = %d, tei = %d", sapi, tei);
				l2sc->rxd_PF = pfbit;
				i4b_next_l2state(l2sc, EV_RXUA);
			}
			i4b_Dfreembuf(m);			
			break;			

		case FRMR:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{
				l2sc->stat.rx_frmr++;
				NDBGL2(L2_U_MSG, "FRMR, sapi = %d, tei = %d", sapi, tei);
				l2sc->rxd_PF = pfbit;
				i4b_next_l2state(l2sc, EV_RXFRMR);
			}
			i4b_Dfreembuf(m);			
			break;

		default:
			if((l2sc->tei_valid == TEI_VALID) &&
			   (l2sc->tei == GETTEI(*(ptr+OFF_TEI))))
			{		
				NDBGL2(L2_U_ERR, "UNKNOWN TYPE ERROR, sapi = %d, tei = %d, frame = ", sapi, tei);
				i4b_print_frame(m->m_len, m->m_data);
			}
			else
			{		
				NDBGL2(L2_U_ERR, "not mine -  UNKNOWN TYPE ERROR, sapi = %d, tei = %d, frame = ", sapi, tei);
				i4b_print_frame(m->m_len, m->m_data);
			}
			l2sc->stat.err_rx_badui++;			
			i4b_Dfreembuf(m);			
			break;
	}
}
示例#3
0
static void
i4b_T203_timeout(l2_softc_t *l2sc)
{
	NDBGL2(L2_T_ERR, "bri %d", l2sc->bri);
	i4b_next_l2state(l2sc, EV_T203EXP);
}