/* * * =================================== * HARP | Host ATM Research Platform * =================================== * * * This Host ATM Research Platform ("HARP") file (the "Software") is * made available by Network Computing Services, Inc. ("NetworkCS") * "AS IS". NetworkCS does not provide maintenance, improvements or * support of any kind. * * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE. * In no event shall NetworkCS be responsible for any damages, including * but not limited to consequential damages, arising from or relating to * any use of the Software or related support. * * Copyright 1994-1998 Network Computing Services, Inc. * * Copies of this Software may be made, however, the above copyright * notice must be reproduced on all copies. * * @(#) $Id: q2110_sigaa.c,v 1.1 1998/09/15 08:23:05 phk Exp $ * */ /* * ATM Forum UNI Support * --------------------- * * ITU-T Q.2110 - Process AA-signals (SAP_SSCOP) * */ #include #include #include #include #include #include #ifndef lint __RCSID("@(#) $Id: q2110_sigaa.c,v 1.1 1998/09/15 08:23:05 phk Exp $"); #endif /* * Local functions */ static void sscop_resreq_ready __P((struct sscop *, int, int)); static void sscop_resrsp_inresyn __P((struct sscop *, int, int)); static void sscop_recrsp_recovrsp __P((struct sscop *, int, int)); static void sscop_recrsp_inrecov __P((struct sscop *, int, int)); /* * Stack command state lookup tables */ /* SSCOP_INIT */ static void (*sscop_init_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { sscop_init_inst, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ NULL, /* SOS_READY */ NULL /* SOS_TERM */ }; /* SSCOP_TERM */ static void (*sscop_term_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { sscop_term_all, /* SOS_INST */ sscop_term_all, /* SOS_IDLE */ sscop_term_all, /* SOS_OUTCONN */ sscop_term_all, /* SOS_INCONN */ sscop_term_all, /* SOS_OUTDISC */ sscop_term_all, /* SOS_OUTRESYN */ sscop_term_all, /* SOS_INRESYN */ sscop_term_all, /* SOS_OUTRECOV */ sscop_term_all, /* SOS_RECOVRSP */ sscop_term_all, /* SOS_INRECOV */ sscop_term_all, /* SOS_READY */ sscop_term_all /* SOS_TERM */ }; /* SSCOP_ESTABLISH_REQ */ static void (*sscop_estreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ sscop_estreq_idle, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ sscop_estreq_idle, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ NULL, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_ESTABLISH_RSP */ static void (*sscop_estrsp_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ sscop_estrsp_inconn, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ NULL, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_RELEASE_REQ */ static void (*sscop_relreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ sscop_relreq_outconn, /* SOS_OUTCONN */ sscop_relreq_inconn, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ sscop_relreq_outconn, /* SOS_OUTRESYN */ sscop_relreq_outconn, /* SOS_INRESYN */ sscop_relreq_ready, /* SOS_OUTRECOV */ sscop_relreq_outconn, /* SOS_RECOVRSP */ sscop_relreq_outconn, /* SOS_INRECOV */ sscop_relreq_ready, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_DATA_REQ */ static void (*sscop_datreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ sscop_aa_noop_1, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ sscop_datreq_ready, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_RESYNC_REQ */ static void (*sscop_resreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ sscop_resreq_ready, /* SOS_OUTRECOV */ sscop_resreq_ready, /* SOS_RECOVRSP */ sscop_resreq_ready, /* SOS_INRECOV */ sscop_resreq_ready, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_RESYNC_RSP */ static void (*sscop_resrsp_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ sscop_resrsp_inresyn, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ NULL, /* SOS_READY */ sscop_aa_noop_0 /* SOS_TERM */ }; /* SSCOP_RECOVER_RSP */ static void (*sscop_recrsp_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ sscop_recrsp_recovrsp, /* SOS_RECOVRSP */ sscop_recrsp_inrecov, /* SOS_INRECOV */ NULL, /* SOS_READY */ sscop_aa_noop_0 /* SOS_TERM */ }; /* SSCOP_UNITDATA_REQ */ static void (*sscop_udtreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ sscop_udtreq_all, /* SOS_IDLE */ sscop_udtreq_all, /* SOS_OUTCONN */ sscop_udtreq_all, /* SOS_INCONN */ sscop_udtreq_all, /* SOS_OUTDISC */ sscop_udtreq_all, /* SOS_OUTRESYN */ sscop_udtreq_all, /* SOS_INRESYN */ sscop_udtreq_all, /* SOS_OUTRECOV */ sscop_udtreq_all, /* SOS_RECOVRSP */ sscop_udtreq_all, /* SOS_INRECOV */ sscop_udtreq_all, /* SOS_READY */ sscop_aa_noop_1 /* SOS_TERM */ }; /* SSCOP_RETRIEVE_REQ */ static void (*sscop_retreq_tab[SOS_NUMSTATES]) __P((struct sscop *, int, int)) = { NULL, /* SOS_INST */ NULL, /* SOS_IDLE */ NULL, /* SOS_OUTCONN */ NULL, /* SOS_INCONN */ NULL, /* SOS_OUTDISC */ NULL, /* SOS_OUTRESYN */ NULL, /* SOS_INRESYN */ NULL, /* SOS_OUTRECOV */ NULL, /* SOS_RECOVRSP */ NULL, /* SOS_INRECOV */ NULL, /* SOS_READY */ NULL /* SOS_TERM */ }; /* * Stack command lookup table */ void (*(*sscop_q2110_aatab[SSCOP_CMD_SIZE])) __P((struct sscop *, int, int)) = { NULL, sscop_init_tab, sscop_term_tab, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, sscop_estreq_tab, NULL, sscop_estrsp_tab, NULL, sscop_relreq_tab, NULL, NULL, sscop_datreq_tab, NULL, sscop_resreq_tab, NULL, sscop_resrsp_tab, NULL, NULL, sscop_recrsp_tab, sscop_udtreq_tab, NULL, sscop_retreq_tab, NULL, NULL }; /* * SSCOP_RESYNC_REQ / SOS_READY Command Processor * * Arguments: * sop pointer to sscop connection block * arg1 pointer to buffer containing SSCOP-UU data * arg2 unused * * Returns: * none * */ static void sscop_resreq_ready(sop, arg1, arg2) struct sscop *sop; int arg1; int arg2; { /* * We don't support SSCOP-UU data */ if (arg1 != SSCOP_UU_NULL) KB_FREEALL((KBuffer *)arg1); /* * Stop data transfer timers */ sop->so_timer[SSCOP_T_POLL] = 0; sop->so_timer[SSCOP_T_NORESP] = 0; sop->so_timer[SSCOP_T_IDLE] = 0; sop->so_flags &= ~SOF_KEEPALIVE; /* * Initialize receiver window */ SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin); /* * Send first RS PDU */ sop->so_connctl = 1; SEQ_INCR(sop->so_sendconn, 1); (void) sscop_send_rs(sop); /* * Drain transmit and receive queues */ sscop_xmit_drain(sop); sscop_rcvr_drain(sop); /* * Set retransmit timer */ sop->so_timer[SSCOP_T_CC] = sop->so_parm.sp_timecc; /* * Wait for RSAK */ sop->so_state = SOS_OUTRESYN; return; } /* * SSCOP_RESYNC_RSP / SOS_INRESYN Command Processor * * Arguments: * sop pointer to sscop connection block * arg1 unused * arg2 unused * * Returns: * none * */ static void sscop_resrsp_inresyn(sop, arg1, arg2) struct sscop *sop; int arg1; int arg2; { /* * Clear transmitter buffers */ q2110_clear_xmit(sop); /* * Initialize state variables */ SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin); q2110_init_state(sop); /* * Send RSAK PDU */ (void) sscop_send_rsak(sop); /* * Start data transfer timers */ sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll; sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp; /* * Back to data transfer state */ sop->so_state = SOS_READY; return; } /* * SSCOP_RECOVER_RSP / SOS_RECOVRSP Command Processor * * Arguments: * sop pointer to sscop connection block * arg1 unused * arg2 unused * * Returns: * none * */ static void sscop_recrsp_recovrsp(sop, arg1, arg2) struct sscop *sop; int arg1; int arg2; { /* * Clear transmitter buffers, if not done earlier */ if (sop->so_flags & SOF_NOCLRBUF) q2110_clear_xmit(sop); /* * Initialize state variables */ q2110_init_state(sop); /* * Start data transfer timers */ sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll; sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp; /* * Back to data transfer state */ sop->so_state = SOS_READY; /* * See if transmit queues need servicing */ if (sop->so_flags & SOF_XMITSRVC) sscop_service_xmit(sop); return; } /* * SSCOP_RECOVER_RSP / SOS_INRECOV Command Processor * * Arguments: * sop pointer to sscop connection block * arg1 unused * arg2 unused * * Returns: * none * */ static void sscop_recrsp_inrecov(sop, arg1, arg2) struct sscop *sop; int arg1; int arg2; { /* * Clear transmitter buffers, if not done earlier */ if (sop->so_flags & SOF_NOCLRBUF) q2110_clear_xmit(sop); /* * Initialize state variables */ SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin); q2110_init_state(sop); /* * Send ERAK PDU */ (void) sscop_send_erak(sop); /* * Start data transfer timers */ sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll; sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp; /* * Back to data transfer state */ sop->so_state = SOS_READY; /* * See if transmit queues need servicing */ if (sop->so_flags & SOF_XMITSRVC) sscop_service_xmit(sop); return; }