// SPDX-License-Identifier: GPL-2.0-or-later /****************************************************************************** * * (C)Copyright 1998,1999 SysKonnect, * a business unit of Schneider & Koch & Co. Datensysteme GmbH. * * See the file "skfddi.c" for further information. * * The information in this file is provided "AS IS" without warranty. * ******************************************************************************/ #include "h/types.h" #include "h/fddi.h" #include "h/smc.h" #include "h/smt_p.h" #include #include #define KERNEL #include "h/smtstate.h" /* * FC in SMbuf */ #define m_fc(mb) ((mb)->sm_data[0]) #define SMT_TID_MAGIC 0x1f0a7b3c static const char *const smt_type_name[] = { "SMT_00??", "SMT_INFO", "SMT_02??", "SMT_03??", "SMT_04??", "SMT_05??", "SMT_06??", "SMT_07??", "SMT_08??", "SMT_09??", "SMT_0A??", "SMT_0B??", "SMT_0C??", "SMT_0D??", "SMT_0E??", "SMT_NSA" } ; static const char *const smt_class_name[] = { "UNKNOWN","NIF","SIF_CONFIG","SIF_OPER","ECF","RAF","RDF", "SRF","PMF_GET","PMF_SET","ESF" } ; #define LAST_CLASS (SMT_PMF_SET) static const struct fddi_addr SMT_Unknown = { { 0,0,0x1f,0,0,0 } } ; /* * function prototypes */ #ifdef LITTLE_ENDIAN static int smt_swap_short(u_short s); #endif static int mac_index(struct s_smc *smc, int mac); static int phy_index(struct s_smc *smc, int phy); static int mac_con_resource_index(struct s_smc *smc, int mac); static int phy_con_resource_index(struct s_smc *smc, int phy); static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason, int local); static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest, int fc, u_long tid, int type, int local); static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc, u_long tid, int type, int len); static void smt_echo_test(struct s_smc *smc, int dna); static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest, u_long tid, int local); static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest, u_long tid, int local); #ifdef LITTLE_ENDIAN static void smt_string_swap(char *data, const char *format, int len); #endif static void smt_add_frame_len(SMbuf *mb, int len); static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una); static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde); static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state); static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts); static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy); static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency); static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor); static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path); static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st); static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy); static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers); static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc); static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc); static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc); static void smt_fill_manufacturer(struct s_smc *smc, struct smp_p_manufacturer *man); static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user); static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount); static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed, int len); static void smt_clear_una_dna(struct s_smc *smc); static void smt_clear_old_una_dna(struct s_smc *smc); #ifdef CONCENTRATOR static int entity_to_index(void); #endif static void update_dac(struct s_smc *smc, int report); static int div_ratio(u_long upper, u_long lower); #ifdef USE_CAN_ADDR static void hwm_conv_can(struct s_smc *smc, char *data, int len); #else #define hwm_conv_can(smc,data,len) #endif static inline int is_my_addr(const struct s_smc *smc, const struct fddi_addr *addr) { return(*(short *)(&addr->a[0]) == *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[0]) && *(short *)(&addr->a[2]) == *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[2]) && *(short *)(&addr->a[4]) == *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[4])) ; } static inline int is_broadcast(const struct fddi_addr *addr) { return *(u_short *)(&addr->a[0]) == 0xffff && *(u_short *)(&addr->a[2]) == 0xffff && *(u_short *)(&addr->a[4]) == 0xffff; } static inline int is_individual(const struct fddi_addr *addr) { return !(addr->a[0] & GROUP_ADDR); } static inline int is_equal(const struct fddi_addr *addr1, const struct fddi_addr *addr2) { return *(u_short *)(&addr1->a[0]) == *(u_short *)(&addr2->a[0]) && *(u_short *)(&addr1->a[2]) == *(u_short *)(&addr2->a[2]) && *(u_short *)(&addr1->a[4]) == *(u_short *)(&addr2->a[4]); } /* * list of mandatory paras in frames */ static const u_short plist_nif[] = { SMT_P_UNA,SMT_P_SDE,SMT_P_STATE,0 } ; /* * init SMT agent */ void smt_agent_init(struct s_smc *smc) { int i ; /* * get MAC address */ smc->mib.m[MAC0].fddiMACSMTAddress = smc->hw.fddi_home_addr ; /* * get OUI address from driver (bia == built-in-address) */ smc->mib.fddiSMTStationId.sid_oem[0] = 0 ; smc->mib.fddiSMTStationId.sid_oem[1] = 0 ; driver_get_bia(smc,&smc->mib.fddiSMTStationId.sid_node) ; for (i = 0 ; i < 6 ; i ++) { smc->mib.fddiSMTStationId.sid_node.a[i] = bitrev8(smc->mib.fddiSMTStationId.sid_node.a[i]); } smc->mib.fddiSMTManufacturerData[0] = smc->mib.fddiSMTStationId.sid_node.a[0] ; smc->mib.fddiSMTManufacturerData[1] = smc->mib.fddiSMTStationId.sid_node.a[1] ; smc->mib.fddiSMTManufacturerData[2] = smc->mib.fddiSMTStationId.sid_node.a[2] ; smc->sm.smt_tid = 0 ; smc->mib.m[MAC0].fddiMACDupAddressTest = DA_NONE ; smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ; #ifndef SLIM_SMT smt_clear_una_dna(smc) ; smt_clear_old_una_dna(smc) ; #endif for (i = 0 ; i < SMT_MAX_TEST ; i++) smc->sm.pend[i] = 0 ; smc->sm.please_reconnect = 0 ; smc->sm.uniq_ticks = 0 ; } /* * SMT task * forever * delay 30 seconds * send NIF * check tvu & tvd * end */ void smt_agent_task(struct s_smc *smc) { smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L, EV_TOKEN(EVENT_SMT,SM_TIMER)) ; DB_SMT("SMT agent task"); } #ifndef SMT_REAL_TOKEN_CT void smt_emulate_token_ct(struct s_smc *smc, int mac_index) { u_long count; u_long time; time = smt_get_time(); count = ((time - smc->sm.last_tok_time[mac_index]) * 100)/TICKS_PER_SECOND; /* * Only when ring is up we will have a token count. The * flag is unfortunately a single instance value. This * doesn't matter now, because we currently have only * one MAC instance. */ if (smc->hw.mac_ring_is_up){ smc->mib.m[mac_index].fddiMACToken_Ct += count; } /* Remember current time */ smc->sm.last_tok_time[mac_index] = time; } #endif /*ARGSUSED1*/ void smt_event(struct s_smc *smc, int event) { u_long time ; #ifndef SMT_REAL_TOKEN_CT int i ; #endif if (smc->sm.please_reconnect) { smc->sm.please_reconnect -- ; if (smc->sm.please_reconnect == 0) { /* Counted down */ queue_event(smc,EVENT_ECM,EC_CONNECT) ; } } if (event == SM_FAST) return ; /* * timer for periodic cleanup in driver * reset and start the watchdog (FM2) * ESS timer * SBA timer */ smt_timer_poll(smc) ; smt_start_watchdog(smc) ; #ifndef SLIM_SMT #ifndef BOOT #ifdef ESS ess_timer_poll(smc) ; #endif #endif #ifdef SBA sba_timer_poll(smc) ; #endif smt_srf_event(smc,0,0,0) ; #endif /* no SLIM_SMT */ time = smt_get_time() ; if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) { /* * Use 8 sec. for the time intervall, it simplifies the * LER estimation. */ struct fddi_mib_m *mib ; u_long upper ; u_long lower ; int cond ; int port; struct s_phy *phy ; /* * calculate LEM bit error rate */ sm_lem_evaluate(smc) ; smc->sm.smt_last_lem = time ; /* * check conditions */ #ifndef SLIM_SMT mac_update_counter(smc) ; mib = smc->mib.m ; upper = (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) + (mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ; lower = (mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) + (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ; mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ; cond = ((!mib->fddiMACFrameErrorThreshold && mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) || (mib->fddiMACFrameErrorRatio > mib->fddiMACFrameErrorThreshold)) ; if (cond != mib->fddiMACFrameErrorFlag) smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR, INDEX_MAC,cond) ; upper = (mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ; lower = upper + (mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ; mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ; cond = ((!mib->fddiMACNotCopiedThreshold && mib->fddiMACNotCopied_Ct != mib->fddiMACOld_NotCopied_Ct)|| (mib->fddiMACNotCopiedRatio > mib->fddiMACNotCopiedThreshold)) ; if (cond != mib->fddiMACNotCopiedFlag) smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED, INDEX_MAC,cond) ; /* * set old values */ mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ; mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ; mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ; mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ; mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ; /* * Check port EBError Condition */ for (port = 0; port < NUMPHYS; port ++) { phy = &smc->y[port] ; if (!phy->mib->fddiPORTHardwarePresent) { continue; } cond = (phy->mib->fddiPORTEBError_Ct - phy->mib->fddiPORTOldEBError_Ct > 5) ; /* If ratio is more than 5 in 8 seconds * Set the condition. */ smt_srf_event(smc,SMT_COND_PORT_EB_ERROR, (int) (INDEX_PORT+ phy->np) ,cond) ; /* * set old values */ phy->mib->fddiPORTOldEBError_Ct = phy->mib->fddiPORTEBError_Ct ; } #endif /* no SLIM_SMT */ } #ifndef SLIM_SMT if (time - smc->sm.smt_last_notify >= (u_long) (smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) { /* * we can either send an announcement or a request * a request will trigger a reply so that we can update * our dna * note: same tid must be used until reply is received */ if (!smc->sm.pend[SMT_TID_NIF]) smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ; smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA, smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ; smc->sm.smt_last_notify = time ; } /* * check timer */ if (smc->sm.smt_tvu && time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) { DB_SMT("SMT : UNA expired"); smc->sm.smt_tvu = 0 ; if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr, &SMT_Unknown)){ /* Do not update unknown address */ smc->mib.m[MAC0].fddiMACOldUpstreamNbr= smc->mib.m[MAC0].fddiMACUpstreamNbr ; } smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ; smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ; /* * Make sure the fddiMACUNDA_Flag = FALSE is * included in the SRF so we don't generate * a separate SRF for the deassertion of this * condition */ update_dac(smc,0) ; smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, INDEX_MAC,0) ; } if (smc->sm.smt_tvd && time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) { DB_SMT("SMT : DNA expired"); smc->sm.smt_tvd = 0 ; if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr, &SMT_Unknown)){ /* Do not update unknown address */ smc->mib.m[MAC0].fddiMACOldDownstreamNbr= smc->mib.m[MAC0].fddiMACDownstreamNbr ; } smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ; smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, INDEX_MAC,0) ; } #endif /* no SLIM_SMT */ #ifndef SMT_REAL_TOKEN_CT /* * Token counter emulation section. If hardware supports the token * count, the token counter will be updated in mac_update_counter. */ for (i = MAC0; i < NUMMACS; i++ ){ if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){ smt_emulate_token_ct( smc, i ); } } #endif smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L, EV_TOKEN(EVENT_SMT,SM_TIMER)) ; } static int div_ratio(u_long upper, u_long lower) { if ((upper<<16L) < upper) upper = 0xffff0000L ; else upper <<= 16L ; if (!lower) return 0; return (int)(upper/lower) ; } #ifndef SLIM_SMT /* * receive packet handler */ void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs) /* int fs; frame status */ { struct smt_header *sm ; int local ; int illegal = 0 ; switch (m_fc(mb)) { case FC_SMT_INFO : case FC_SMT_LAN_LOC : case FC_SMT_LOC : case FC_SMT_NSA : break ; default : smt_free_mbuf(smc,mb) ; return ; } smc->mib.m[MAC0].fddiMACSMTCopied_Ct++ ; sm = smtod(mb,struct smt_header *) ; local = ((fs & L_INDICATOR) != 0) ; hwm_conv_can(smc,(char *)sm,12) ; /* check destination address */ if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) { smt_free_mbuf(smc,mb) ; return ; } #if 0 /* for DUP recognition, do NOT filter them */ /* ignore loop back packets */ if (is_my_addr(smc,&sm->smt_source) && !local) { smt_free_mbuf(smc,mb) ; return ; } #endif smt_swap_para(sm,(int) mb->sm_len,1) ; DB_SMT("SMT : received packet [%s] at 0x%p", smt_type_name[m_fc(mb) & 0xf], sm); DB_SMT("SMT : version %d, class %s", sm->smt_version, smt_class_name[sm->smt_class > LAST_CLASS ? 0 : sm->smt_class]); #ifdef SBA /* * check if NSA frame */ if (m_fc(mb) == FC_SMT_NSA && sm->smt_class == SMT_NIF && (sm->smt_type == SMT_ANNOUNCE || sm->smt_type == SMT_REQUEST)) { smc->sba.sm = sm ; sba(smc,NIF) ; } #endif /* * ignore any packet with NSA and A-indicator set */ if ( (fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) { DB_SMT("SMT : ignoring NSA with A-indicator set from %pM", &sm->smt_source); smt_free_mbuf(smc,mb) ; return ; } /* * ignore frames with illegal length */ if (((sm->smt_class == SMT_ECF) && (sm->smt_len > SMT_MAX_ECHO_LEN)) || ((sm->smt_class != SMT_ECF) && (sm->smt_len > SMT_MAX_INFO_LEN))) { smt_free_mbuf(smc,mb) ; return ; } /* * check SMT version */ switch (sm->smt_class) { case SMT_NIF : case SMT_SIF_CONFIG : case SMT_SIF_OPER : case SMT_ECF : if (sm->smt_version != SMT_VID) illegal = 1; break ; default : if (sm->smt_version != SMT_VID_2) illegal = 1; break ; } if (illegal) { DB_SMT("SMT : version = %d, dest = %pM", sm->smt_version, &sm->smt_source); smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_VERSION,local) ; smt_free_mbuf(smc,mb) ; return ; } if ((sm->smt_len > mb->sm_len - sizeof(struct smt_header)) || ((sm->smt_len & 3) && (sm->smt_class != SMT_ECF))) { DB_SMT("SMT: info length error, len = %d", sm->smt_len); smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,local) ; smt_free_mbuf(smc,mb) ; return ; } switch (sm->smt_class) { case SMT_NIF : if (smt_check_para(smc,sm,plist_nif)) { DB_SMT("SMT: NIF with para problem, ignoring"); break ; } switch (sm->smt_type) { case SMT_ANNOUNCE : case SMT_REQUEST : if (!(fs & C_INDICATOR) && m_fc(mb) == FC_SMT_NSA && is_broadcast(&sm->smt_dest)) { struct smt_p_state *st ; /* set my UNA */ if (!is_equal( &smc->mib.m[MAC0].fddiMACUpstreamNbr, &sm->smt_source)) { DB_SMT("SMT : updated my UNA = %pM", &sm->smt_source); if (!is_equal(&smc->mib.m[MAC0]. fddiMACUpstreamNbr,&SMT_Unknown)){ /* Do not update unknown address */ smc->mib.m[MAC0].fddiMACOldUpstreamNbr= smc->mib.m[MAC0].fddiMACUpstreamNbr ; } smc->mib.m[MAC0].fddiMACUpstreamNbr = sm->smt_source ; smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, INDEX_MAC,0) ; smt_echo_test(smc,0) ; } smc->sm.smt_tvu = smt_get_time() ; st = (struct smt_p_state *) sm_to_para(smc,sm,SMT_P_STATE) ; if (st) { smc->mib.m[MAC0].fddiMACUNDA_Flag = (st->st_dupl_addr & SMT_ST_MY_DUPA) ? TRUE : FALSE ; update_dac(smc,1) ; } } if ((sm->smt_type == SMT_REQUEST) && is_individual(&sm->smt_source) && ((!(fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) || (m_fc(mb) != FC_SMT_NSA))) { DB_SMT("SMT : replying to NIF request %pM", &sm->smt_source); smt_send_nif(smc,&sm->smt_source, FC_SMT_INFO, sm->smt_tid, SMT_REPLY,local) ; } break ; case SMT_REPLY : DB_SMT("SMT : received NIF response from %pM", &sm->smt_source); if (fs & A_INDICATOR) { smc->sm.pend[SMT_TID_NIF] = 0 ; DB_SMT("SMT : duplicate address"); smc->mib.m[MAC0].fddiMACDupAddressTest = DA_FAILED ; smc->r.dup_addr_test = DA_FAILED ; queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ; smc->mib.m[MAC0].fddiMACDA_Flag = TRUE ; update_dac(smc,1) ; break ; } if (sm->smt_tid == smc->sm.pend[SMT_TID_NIF]) { smc->sm.pend[SMT_TID_NIF] = 0 ; /* set my DNA */ if (!is_equal( &smc->mib.m[MAC0].fddiMACDownstreamNbr, &sm->smt_source)) { DB_SMT("SMT : updated my DNA"); if (!is_equal(&smc->mib.m[MAC0]. fddiMACDownstreamNbr, &SMT_Unknown)){ /* Do not update unknown address */ smc->mib.m[MAC0].fddiMACOldDownstreamNbr = smc->mib.m[MAC0].fddiMACDownstreamNbr ; } smc->mib.m[MAC0].fddiMACDownstreamNbr = sm->smt_source ; smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, INDEX_MAC,0) ; smt_echo_test(smc,1) ; } smc->mib.m[MAC0].fddiMACDA_Flag = FALSE ; update_dac(smc,1) ; smc->sm.smt_tvd = smt_get_time() ; smc->mib.m[MAC0].fddiMACDupAddressTest = DA_PASSED ; if (smc->r.dup_addr_test != DA_PASSED) { smc->r.dup_addr_test = DA_PASSED ; queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ; } } else if (sm->smt_tid == smc->sm.pend[SMT_TID_NIF_TEST]) { DB_SMT("SMT : NIF test TID ok"); } else { DB_SMT("SMT : expected TID %lx, got %x", smc->sm.pend[SMT_TID_NIF], sm->smt_tid); } break ; default : illegal = 2 ; break ; } break ; case SMT_SIF_CONFIG : /* station information */ if (sm->smt_type != SMT_REQUEST) break ; DB_SMT("SMT : replying to SIF Config request from %pM", &sm->smt_source); smt_send_sif_config(smc,&sm->smt_source,sm->smt_tid,local) ; break ; case SMT_SIF_OPER : /* station information */ if (sm->smt_type != SMT_REQUEST) break ; DB_SMT("SMT : replying to SIF Operation request from %pM", &sm->smt_source); smt_send_sif_operation(smc,&sm->smt_source,sm->smt_tid,local) ; break ; case SMT_ECF : /* echo frame */ switch (sm->smt_type) { case SMT_REPLY : smc->mib.priv.fddiPRIVECF_Reply_Rx++ ; DB_SMT("SMT: received ECF reply from %pM", &sm->smt_source); if (sm_to_para(smc,sm,SMT_P_ECHODATA) == NULL) { DB_SMT("SMT: ECHODATA missing"); break ; } if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF]) { DB_SMT("SMT : ECF test TID ok"); } else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_UNA]) { DB_SMT("SMT : ECF test UNA ok"); } else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_DNA]) { DB_SMT("SMT : ECF test DNA ok"); } else { DB_SMT("SMT : expected TID %lx, got %x", smc->sm.pend[SMT_TID_ECF], sm->smt_tid); } break ; case SMT_REQUEST : smc->mib.priv.fddiPRIVECF_Req_Rx++ ; { if (sm->smt_len && !sm_to_para(smc,sm,SMT_P_ECHODATA)) { DB_SMT("SMT: ECF with para problem,sending RDF"); smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH, local) ; break ; } DB_SMT("SMT - sending ECF reply to %pM", &sm->smt_source); /* set destination addr. & reply */ sm->smt_dest = sm->smt_source ; sm->smt_type = SMT_REPLY ; dump_smt(smc,sm,"ECF REPLY") ; smc->mib.priv.fddiPRIVECF_Reply_Tx++ ; smt_send_frame(smc,mb,FC_SMT_INFO,local) ; return ; /* DON'T free mbuf */ } default : illegal = 1 ; break ; } break ; #ifndef BOOT case SMT_RAF : /* resource allocation */ #ifdef ESS DB_ESSN(2, "ESS: RAF frame received"); fs = ess_raf_received_pack(smc,mb,sm,fs) ; #endif #ifdef SBA DB_SBAN(2,"SBA: RAF frame received\n",0,0) ; sba_raf_received_pack(smc,sm,fs) ; #endif break ; case SMT_RDF : /* request denied */ smc->mib.priv.fddiPRIVRDF_Rx++ ; break ; case SMT_ESF : /* extended service - not supported */ if (sm->smt_type == SMT_REQUEST) { DB_SMT("SMT - received ESF, sending RDF"); smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ; } break ; case SMT_PMF_GET : case SMT_PMF_SET : if (sm->smt_type != SMT_REQUEST) break ; /* update statistics */ if (sm->smt_class == SMT_PMF_GET) smc->mib.priv.fddiPRIVPMF_Get_Rx++ ; else smc->mib.priv.fddiPRIVPMF_Set_Rx++ ; /* * ignore PMF SET with I/G set */ if ((sm->smt_class == SMT_PMF_SET) && !is_individual(&sm->smt_dest)) { DB_SMT("SMT: ignoring PMF-SET with I/G set"); break ; } smt_pmf_received_pack(smc,mb, local) ; break ; case SMT_SRF : dump_smt(smc,sm,"SRF received") ; break ; default : if (sm->smt_type != SMT_REQUEST) break ; /* * For frames with unknown class: * we need to send a RDF frame according to 8.1.3.1.1, * only if it is a REQUEST. */ DB_SMT("SMT : class = %d, send RDF to %pM", sm->smt_class, &sm->smt_source); smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ; break ; #endif } if (illegal) { DB_SMT("SMT: discarding invalid frame, reason = %d", illegal); } smt_free_mbuf(smc,mb) ; } static void update_dac(struct s_smc *smc, int report) { int cond ; cond = ( smc->mib.m[MAC0].fddiMACUNDA_Flag | smc->mib.m[MAC0].fddiMACDA_Flag) != 0 ; if (report && (cond != smc->mib.m[MAC0].fddiMACDuplicateAddressCond)) smt_srf_event(smc, SMT_COND_MAC_DUP_ADDR,INDEX_MAC,cond) ; else smc->mib.m[MAC0].fddiMACDuplicateAddressCond = cond ; } /* * send SMT frame * set source address * set station ID * send frame */ void smt_send_frame(struct s_smc *smc, SMbuf *mb, int fc, int local) /* SMbuf *mb; buffer to send */ /* int fc; FC value */ { struct smt_header *sm ; if (!smc->r.sm_ma_avail && !local) { smt_free_mbuf(smc,mb) ; return ; } sm = smtod(mb,struct smt_header *) ; sm->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ; sm->smt_sid = smc->mib.fddiSMTStationId ; smt_swap_para(sm,(int) mb->sm_len,0) ; /* swap para & header */ hwm_conv_can(smc,(char *)sm,12) ; /* convert SA and DA */ smc->mib.m[MAC0].fddiMACSMTTransmit_Ct++ ; smt_send_mbuf(smc,mb,local ? FC_SMT_LOC : fc) ; } /* * generate and send RDF */ static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason, int local) /* SMbuf *rej; mbuf of offending frame */ /* int fc; FC of denied frame */ /* int reason; reason code */ { SMbuf *mb ; struct smt_header *sm ; /* header of offending frame */ struct smt_rdf *rdf ; int len ; int frame_len ; sm = smtod(rej,struct smt_header *) ; if (sm->smt_type != SMT_REQUEST) return ; DB_SMT("SMT: sending RDF to %pM,reason = 0x%x", &sm->smt_source, reason); /* * note: get framelength from MAC length, NOT from SMT header * smt header length is included in sm_len */ frame_len = rej->sm_len ; if (!(mb=smt_build_frame(smc,SMT_RDF,SMT_REPLY,sizeof(struct smt_rdf)))) return ; rdf = smtod(mb,struct smt_rdf *) ; rdf->smt.smt_tid = sm->smt_tid ; /* use TID from sm */ rdf->smt.smt_dest = sm->smt_source ; /* set dest = source */ /* set P12 */ rdf->reason.para.p_type = SMT_P_REASON ; rdf->reason.para.p_len = sizeof(struct smt_p_reason) - PARA_LEN ; rdf->reason.rdf_reason = reason ; /* set P14 */ rdf->version.para.p_type = SMT_P_VERSION ; rdf->version.para.p_len = sizeof(struct smt_p_version) - PARA_LEN ; rdf->version.v_pad = 0 ; rdf->version.v_n = 1 ; rdf->version.v_index = 1 ; rdf->version.v_version[0] = SMT_VID_2 ; rdf->version.v_pad2 = 0 ; /* set P13 */ if ((unsigned int) frame_len <= SMT_MAX_INFO_LEN - sizeof(*rdf) + 2*sizeof(struct smt_header)) len = frame_len ; else len = SMT_MAX_INFO_LEN - sizeof(*rdf) + 2*sizeof(struct smt_header) ; /* make length multiple of 4 */ len &= ~3 ; rdf->refused.para.p_type = SMT_P_REFUSED ; /* length of para is smt_frame + ref_fc */ rdf->refused.para.p_len = len + 4 ; rdf->refused.ref_fc = fc ; /* swap it back */ smt_swap_para(sm,frame_len,0) ; memcpy((char *) &rdf->refused.ref_header,(char *) sm,len) ; len -= sizeof(struct smt_header) ; mb->sm_len += len ; rdf->smt.smt_len += len ; dump_smt(smc,(struct smt_header *)rdf,"RDF") ; smc->mib.priv.fddiPRIVRDF_Tx++ ; smt_send_frame(smc,mb,FC_SMT_INFO,local) ; } /* * generate and send NIF */ static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest, int fc, u_long tid, int type, int local) /* struct fddi_addr *dest; dest address */ /* int fc; frame control */ /* u_long tid; transaction id */ /* int type; frame type */ { struct smt_nif *nif ; SMbuf *mb ; if (!(mb = smt_build_frame(smc,SMT_NIF,type,sizeof(struct smt_nif)))) return ; nif = smtod(mb, struct smt_nif *) ; smt_fill_una(smc,&nif->una) ; /* set UNA */ smt_fill_sde(smc,&nif->sde) ; /* set station descriptor */ smt_fill_state(smc,&nif->state) ; /* set state information */ #ifdef SMT6_10 smt_fill_fsc(smc,&nif->fsc) ; /* set frame status cap. */ #endif nif->smt.smt_dest = *dest ; /* destination address */ nif->smt.smt_tid = tid ; /* transaction ID */ dump_smt(smc,(struct smt_header *)nif,"NIF") ; smt_send_frame(smc,mb,fc,local) ; } #ifdef DEBUG /* * send NIF request (test purpose) */ static void smt_send_nif_request(struct s_smc *smc, struct fddi_addr *dest) { smc->sm.pend[SMT_TID_NIF_TEST] = smt_get_tid(smc) ; smt_send_nif(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_NIF_TEST], SMT_REQUEST,0) ; } /* * send ECF request (test purpose) */ static void smt_send_ecf_request(struct s_smc *smc, struct fddi_addr *dest, int len) { smc->sm.pend[SMT_TID_ECF] = smt_get_tid(smc) ; smt_send_ecf(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_ECF], SMT_REQUEST,len) ; } #endif /* * echo test */ static void smt_echo_test(struct s_smc *smc, int dna) { u_long tid ; smc->sm.pend[dna ? SMT_TID_ECF_DNA : SMT_TID_ECF_UNA] = tid = smt_get_tid(smc) ; smt_send_ecf(smc, dna ? &smc->mib.m[MAC0].fddiMACDownstreamNbr : &smc->mib.m[MAC0].fddiMACUpstreamNbr, FC_SMT_INFO,tid, SMT_REQUEST, (SMT_TEST_ECHO_LEN & ~3)-8) ; } /* * generate and send ECF */ static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc, u_long tid, int type, int len) /* struct fddi_addr *dest; dest address */ /* int fc; frame control */ /* u_long tid; transaction id */ /* int type; frame type */ /* int len; frame length */ { struct smt_ecf *ecf ; SMbuf *mb ; if (!(mb = smt_build_frame(smc,SMT_ECF,type,SMT_ECF_LEN + len))) return ; ecf = smtod(mb, struct smt_ecf *) ; smt_fill_echo(smc,&ecf->ec_echo,tid,len) ; /* set ECHO */ ecf->smt.smt_dest = *dest ; /* destination address */ ecf->smt.smt_tid = tid ; /* transaction ID */ smc->mib.priv.fddiPRIVECF_Req_Tx++ ; smt_send_frame(smc,mb,fc,0) ; } /* * generate and send SIF config response */ static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest, u_long tid, int local) /* struct fddi_addr *dest; dest address */ /* u_long tid; transaction id */ { struct smt_sif_config *sif ; SMbuf *mb ; int len ; if (!(mb = smt_build_frame(smc,SMT_SIF_CONFIG,SMT_REPLY, SIZEOF_SMT_SIF_CONFIG))) return ; sif = smtod(mb, struct smt_sif_config *) ; smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */ smt_fill_sde(smc,&sif->sde) ; /* set station descriptor */ smt_fill_version(smc,&sif->version) ; /* set version information */ smt_fill_state(smc,&sif->state) ; /* set state information */ smt_fill_policy(smc,&sif->policy) ; /* set station policy */ smt_fill_latency(smc,&sif->latency); /* set station latency */ smt_fill_neighbor(smc,&sif->neighbor); /* set station neighbor */ smt_fill_setcount(smc,&sif->setcount) ; /* set count */ len = smt_fill_path(smc,&sif->path); /* set station path descriptor*/ sif->smt.smt_dest = *dest ; /* destination address */ sif->smt.smt_tid = tid ; /* transaction ID */ smt_add_frame_len(mb,len) ; /* adjust length fields */ dump_smt(smc,(struct smt_header *)sif,"SIF Configuration Reply") ; smt_send_frame(smc,mb,FC_SMT_INFO,local) ; } /* * generate and send SIF operation response */ static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest, u_long tid, int local) /* struct fddi_addr *dest; dest address */ /* u_long tid; transaction id */ { struct smt_sif_operation *sif ; SMbuf *mb ; int ports ; int i ; ports = NUMPHYS ; #ifndef CONCENTRATOR if (smc->s.sas == SMT_SAS) ports = 1 ; #endif if (!(mb = smt_build_frame(smc,SMT_SIF_OPER,SMT_REPLY, struct_size(sif, lem, ports)))) return ; sif = smtod(mb, typeof(sif)); smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */ smt_fill_mac_status(smc,&sif->status) ; /* set mac status */ smt_fill_mac_counter(smc,&sif->mc) ; /* set mac counter field */ smt_fill_mac_fnc(smc,&sif->fnc) ; /* set frame not copied counter */ smt_fill_manufacturer(smc,&sif->man) ; /* set manufacturer field */ smt_fill_user(smc,&sif->user) ; /* set user field */ smt_fill_setcount(smc,&sif->setcount) ; /* set count */ /* * set link error mon information */ if (ports == 1) { smt_fill_lem(smc,sif->lem,PS) ; } else { for (i = 0 ; i < ports ; i++) { smt_fill_lem(smc,&sif->lem[i],i) ; } } sif->smt.smt_dest = *dest ; /* destination address */ sif->smt.smt_tid = tid ; /* transaction ID */ dump_smt(smc,(struct smt_header *)sif,"SIF Operation Reply") ; smt_send_frame(smc,mb,FC_SMT_INFO,local) ; } /* * get and initialize SMT frame */ SMbuf *smt_build_frame(struct s_smc *smc, int class, int type, int length) { SMbuf *mb ; struct smt_header *smt ; #if 0 if (!smc->r.sm_ma_avail) { return 0; } #endif if (!(mb = smt_get_mbuf(smc))) return mb; mb->sm_len = length ; smt = smtod(mb, struct smt_header *) ; smt->smt_dest = fddi_broadcast ; /* set dest = broadcast */ smt->smt_class = class ; smt->smt_type = type ; switch (class) { case SMT_NIF : case SMT_SIF_CONFIG : case SMT_SIF_OPER : case SMT_ECF : smt->smt_version = SMT_VID ; break ; default : smt->smt_version = SMT_VID_2 ; break ; } smt->smt_tid = smt_get_tid(smc) ; /* set transaction ID */ smt->smt_pad = 0 ; smt->smt_len = length - sizeof(struct smt_header) ; return mb; } static void smt_add_frame_len(SMbuf *mb, int len) { struct smt_header *smt ; smt = smtod(mb, struct smt_header *) ; smt->smt_len += len ; mb->sm_len += len ; } /* * fill values in UNA parameter */ static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una) { SMTSETPARA(una,SMT_P_UNA) ; una->una_pad = 0 ; una->una_node = smc->mib.m[MAC0].fddiMACUpstreamNbr ; } /* * fill values in SDE parameter */ static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde) { SMTSETPARA(sde,SMT_P_SDE) ; sde->sde_non_master = smc->mib.fddiSMTNonMaster_Ct ; sde->sde_master = smc->mib.fddiSMTMaster_Ct ; sde->sde_mac_count = NUMMACS ; /* only 1 MAC */ #ifdef CONCENTRATOR sde->sde_type = SMT_SDE_CONCENTRATOR ; #else sde->sde_type = SMT_SDE_STATION ; #endif } /* * fill in values in station state parameter */ static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state) { int top ; int twist ; SMTSETPARA(state,SMT_P_STATE) ; state->st_pad = 0 ; /* determine topology */ top = 0 ; if (smc->mib.fddiSMTPeerWrapFlag) { top |= SMT_ST_WRAPPED ; /* state wrapped */ } #ifdef CONCENTRATOR if (cfm_status_unattached(smc)) { top |= SMT_ST_UNATTACHED ; /* unattached concentrator */ } #endif if ((twist = pcm_status_twisted(smc)) & 1) { top |= SMT_ST_TWISTED_A ; /* twisted cable */ } if (twist & 2) { top |= SMT_ST_TWISTED_B ; /* twisted cable */ } #ifdef OPT_SRF top |= SMT_ST_SRF ; #endif if (pcm_rooted_station(smc)) top |= SMT_ST_ROOTED_S ; if (smc->mib.a[0].fddiPATHSbaPayload != 0) top |= SMT_ST_SYNC_SERVICE ; state->st_topology = top ; state->st_dupl_addr = ((smc->mib.m[MAC0].fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0 ) | (smc->mib.m[MAC0].fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0)) ; } /* * fill values in timestamp parameter */ static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts) { SMTSETPARA(ts,SMT_P_TIMESTAMP) ; smt_set_timestamp(smc,ts->ts_time) ; } void smt_set_timestamp(struct s_smc *smc, u_char *p) { u_long time ; u_long utime ; /* * timestamp is 64 bits long ; resolution is 80 nS * our clock resolution is 10mS * 10mS/80ns = 125000 ~ 2^17 = 131072 */ utime = smt_get_time() ; time = utime * 100 ; time /= TICKS_PER_SECOND ; p[0] = 0 ; p[1] = (u_char)((time>>(8+8+8+8-1)) & 1) ; p[2] = (u_char)(time>>(8+8+8-1)) ; p[3] = (u_char)(time>>(8+8-1)) ; p[4] = (u_char)(time>>(8-1)) ; p[5] = (u_char)(time<<1) ; p[6] = (u_char)(smc->sm.uniq_ticks>>8) ; p[7] = (u_char)smc->sm.uniq_ticks ; /* * make sure we don't wrap: restart whenever the upper digits change */ if (utime != smc->sm.uniq_time) { smc->sm.uniq_ticks = 0 ; } smc->sm.uniq_ticks++ ; smc->sm.uniq_time = utime ; } /* * fill values in station policy parameter */ static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy) { int i ; const u_char *map ; u_short in ; u_short out ; /* * MIB para 101b (fddiSMTConnectionPolicy) coding * is different from 0005 coding */ static const u_char ansi_weirdness[16] = { 0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15 } ; SMTSETPARA(policy,SMT_P_POLICY) ; out = 0 ; in = smc->mib.fddiSMTConnectionPolicy ; for (i = 0, map = ansi_weirdness ; i < 16 ; i++) { if (in & 1) out |= (1<<*map) ; in >>= 1 ; map++ ; } policy->pl_config = smc->mib.fddiSMTConfigPolicy ; policy->pl_connect = out ; } /* * fill values in latency equivalent parameter */ static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency) { SMTSETPARA(latency,SMT_P_LATENCY) ; latency->lt_phyout_idx1 = phy_index(smc,0) ; latency->lt_latency1 = 10 ; /* in octets (byte clock) */ /* * note: latency has two phy entries by definition * for a SAS, the 2nd one is null */ if (smc->s.sas == SMT_DAS) { latency->lt_phyout_idx2 = phy_index(smc,1) ; latency->lt_latency2 = 10 ; /* in octets (byte clock) */ } else { latency->lt_phyout_idx2 = 0 ; latency->lt_latency2 = 0 ; } } /* * fill values in MAC neighbors parameter */ static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor) { SMTSETPARA(neighbor,SMT_P_NEIGHBORS) ; neighbor->nb_mib_index = INDEX_MAC ; neighbor->nb_mac_index = mac_index(smc,1) ; neighbor->nb_una = smc->mib.m[MAC0].fddiMACUpstreamNbr ; neighbor->nb_dna = smc->mib.m[MAC0].fddiMACDownstreamNbr ; } /* * fill values in path descriptor */ #ifdef CONCENTRATOR #define ALLPHYS NUMPHYS #else #define ALLPHYS ((smc->s.sas == SMT_SAS) ? 1 : 2) #endif static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path) { SK_LOC_DECL(int,type) ; SK_LOC_DECL(int,state) ; SK_LOC_DECL(int,remote) ; SK_LOC_DECL(int,mac) ; int len ; int p ; int physp ; struct smt_phy_rec *phy ; struct smt_mac_rec *pd_mac ; len = PARA_LEN + sizeof(struct smt_mac_rec) * NUMMACS + sizeof(struct smt_phy_rec) * ALLPHYS ; path->para.p_type = SMT_P_PATH ; path->para.p_len = len - PARA_LEN ; /* PHYs */ for (p = 0,phy = path->pd_phy ; p < ALLPHYS ; p++, phy++) { physp = p ; #ifndef CONCENTRATOR if (smc->s.sas == SMT_SAS) physp = PS ; #endif pcm_status_state(smc,physp,&type,&state,&remote,&mac) ; #ifdef LITTLE_ENDIAN phy->phy_mib_index = smt_swap_short((u_short)p+INDEX_PORT) ; #else phy->phy_mib_index = p+INDEX_PORT ; #endif phy->phy_type = type ; phy->phy_connect_state = state ; phy->phy_remote_type = remote ; phy->phy_remote_mac = mac ; phy->phy_resource_idx = phy_con_resource_index(smc,p) ; } /* MAC */ pd_mac = (struct smt_mac_rec *) phy ; pd_mac->mac_addr = smc->mib.m[MAC0].fddiMACSMTAddress ; pd_mac->mac_resource_idx = mac_con_resource_index(smc,1) ; return len; } /* * fill values in mac status */ static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st) { SMTSETPARA(st,SMT_P_MAC_STATUS) ; st->st_mib_index = INDEX_MAC ; st->st_mac_index = mac_index(smc,1) ; mac_update_counter(smc) ; /* * timer values are represented in SMT as 2's complement numbers * units : internal : 2's complement BCLK */ st->st_t_req = smc->mib.m[MAC0].fddiMACT_Req ; st->st_t_neg = smc->mib.m[MAC0].fddiMACT_Neg ; st->st_t_max = smc->mib.m[MAC0].fddiMACT_Max ; st->st_tvx_value = smc->mib.m[MAC0].fddiMACTvxValue ; st->st_t_min = smc->mib.m[MAC0].fddiMACT_Min ; st->st_sba = smc->mib.a[PATH0].fddiPATHSbaPayload ; st->st_frame_ct = smc->mib.m[MAC0].fddiMACFrame_Ct ; st->st_error_ct = smc->mib.m[MAC0].fddiMACError_Ct ; st->st_lost_ct = smc->mib.m[MAC0].fddiMACLost_Ct ; } /* * fill values in LEM status */ static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy) { struct fddi_mib_p *mib ; mib = smc->y[phy].mib ; SMTSETPARA(lem,SMT_P_LEM) ; lem->lem_mib_index = phy+INDEX_PORT ; lem->lem_phy_index = phy_index(smc,phy) ; lem->lem_pad2 = 0 ; lem->lem_cutoff = mib->fddiPORTLer_Cutoff ; lem->lem_alarm = mib->fddiPORTLer_Alarm ; /* long term bit error rate */ lem->lem_estimate = mib->fddiPORTLer_Estimate ; /* # of rejected connections */ lem->lem_reject_ct = mib->fddiPORTLem_Reject_Ct ; lem->lem_ct = mib->fddiPORTLem_Ct ; /* total number of errors */ } /* * fill version parameter */ static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers) { SK_UNUSED(smc) ; SMTSETPARA(vers,SMT_P_VERSION) ; vers->v_pad = 0 ; vers->v_n = 1 ; /* one version is enough .. */ vers->v_index = 1 ; vers->v_version[0] = SMT_VID_2 ; vers->v_pad2 = 0 ; } #ifdef SMT6_10 /* * fill frame status capabilities */ /* * note: this para 200B is NOT in swap table, because it's also set in * PMF add_para */ static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc) { SK_UNUSED(smc) ; SMTSETPARA(fsc,SMT_P_FSC) ; fsc->fsc_pad0 = 0 ; fsc->fsc_mac_index = INDEX_MAC ; /* this is MIB ; MIB is NOT * mac_index ()i ! */ fsc->fsc_pad1 = 0 ; fsc->fsc_value = FSC_TYPE0 ; /* "normal" node */ #ifdef LITTLE_ENDIAN fsc->fsc_mac_index = smt_swap_short(INDEX_MAC) ; fsc->fsc_value = smt_swap_short(FSC_TYPE0) ; #endif } #endif /* * fill mac counter field */ static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc) { SMTSETPARA(mc,SMT_P_MAC_COUNTER) ; mc->mc_mib_index = INDEX_MAC ; mc->mc_index = mac_index(smc,1) ; mc->mc_receive_ct = smc->mib.m[MAC0].fddiMACCopied_Ct ; mc->mc_transmit_ct = smc->mib.m[MAC0].fddiMACTransmit_Ct ; } /* * fill mac frame not copied counter */ static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc) { SMTSETPARA(fnc,SMT_P_MAC_FNC) ; fnc->nc_mib_index = INDEX_MAC ; fnc->nc_index = mac_index(smc,1) ; fnc->nc_counter = smc->mib.m[MAC0].fddiMACNotCopied_Ct ; } /* * fill manufacturer field */ static void smt_fill_manufacturer(struct s_smc *smc, struct smp_p_manufacturer *man) { SMTSETPARA(man,SMT_P_MANUFACTURER) ; memcpy((char *) man->mf_data, (char *) smc->mib.fddiSMTManufacturerData, sizeof(man->mf_data)) ; } /* * fill user field */ static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user) { SMTSETPARA(user,SMT_P_USER) ; memcpy((char *) user->us_data, (char *) smc->mib.fddiSMTUserData, sizeof(user->us_data)) ; } /* * fill set count */ static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount) { SK_UNUSED(smc) ; SMTSETPARA(setcount,SMT_P_SETCOUNT) ; setcount->count = smc->mib.fddiSMTSetCount.count ; memcpy((char *)setcount->timestamp, (char *)smc->mib.fddiSMTSetCount.timestamp,8) ; } /* * fill echo data */ static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed, int len) { u_char *p ; SK_UNUSED(smc) ; SMTSETPARA(echo,SMT_P_ECHODATA) ; echo->para.p_len = len ; for (p = echo->ec_data ; len ; len--) { *p++ = (u_char) seed ; seed += 13 ; } } /* * clear DNA and UNA * called from CFM if configuration changes */ static void smt_clear_una_dna(struct s_smc *smc) { smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ; smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ; } static void smt_clear_old_una_dna(struct s_smc *smc) { smc->mib.m[MAC0].fddiMACOldUpstreamNbr = SMT_Unknown ; smc->mib.m[MAC0].fddiMACOldDownstreamNbr = SMT_Unknown ; } u_long smt_get_tid(struct s_smc *smc) { u_long tid ; while ((tid = ++(smc->sm.smt_tid) ^ SMT_TID_MAGIC) == 0) ; return tid & 0x3fffffffL; } #ifdef LITTLE_ENDIAN /* * table of parameter lengths */ static const struct smt_pdef { int ptype ; int plen ; const char *pswap ; } smt_pdef[] = { { SMT_P_UNA, sizeof(struct smt_p_una) , SWAP_SMT_P_UNA } , { SMT_P_SDE, sizeof(struct smt_p_sde) , SWAP_SMT_P_SDE } , { SMT_P_STATE, sizeof(struct smt_p_state) , SWAP_SMT_P_STATE } , { SMT_P_TIMESTAMP,sizeof(struct smt_p_timestamp) , SWAP_SMT_P_TIMESTAMP } , { SMT_P_POLICY, sizeof(struct smt_p_policy) , SWAP_SMT_P_POLICY } , { SMT_P_LATENCY, sizeof(struct smt_p_latency) , SWAP_SMT_P_LATENCY } , { SMT_P_NEIGHBORS,sizeof(struct smt_p_neighbor) , SWAP_SMT_P_NEIGHBORS } , { SMT_P_PATH, sizeof(struct smt_p_path) , SWAP_SMT_P_PATH } , { SMT_P_MAC_STATUS,sizeof(struct smt_p_mac_status) , SWAP_SMT_P_MAC_STATUS } , { SMT_P_LEM, sizeof(struct smt_p_lem) , SWAP_SMT_P_LEM } , { SMT_P_MAC_COUNTER,sizeof(struct smt_p_mac_counter) , SWAP_SMT_P_MAC_COUNTER } , { SMT_P_MAC_FNC,sizeof(struct smt_p_mac_fnc) , SWAP_SMT_P_MAC_FNC } , { SMT_P_PRIORITY,sizeof(struct smt_p_priority) , SWAP_SMT_P_PRIORITY } , { SMT_P_EB,sizeof(struct smt_p_eb) , SWAP_SMT_P_EB } , { SMT_P_MANUFACTURER,sizeof(struct smp_p_manufacturer) , SWAP_SMT_P_MANUFACTURER } , { SMT_P_REASON, sizeof(struct smt_p_reason) , SWAP_SMT_P_REASON } , { SMT_P_REFUSED, sizeof(struct smt_p_refused) , SWAP_SMT_P_REFUSED } , { SMT_P_VERSION, sizeof(struct smt_p_version) , SWAP_SMT_P_VERSION } , #ifdef ESS { SMT_P0015, sizeof(struct smt_p_0015) , SWAP_SMT_P0015 } , { SMT_P0016, sizeof(struct smt_p_0016) , SWAP_SMT_P0016 } , { SMT_P0017, sizeof(struct smt_p_0017) , SWAP_SMT_P0017 } , { SMT_P0018, sizeof(struct smt_p_0018) , SWAP_SMT_P0018 } , { SMT_P0019, sizeof(struct smt_p_0019) , SWAP_SMT_P0019 } , { SMT_P001A, sizeof(struct smt_p_001a) , SWAP_SMT_P001A } , { SMT_P001B, sizeof(struct smt_p_001b) , SWAP_SMT_P001B } , { SMT_P001C, sizeof(struct smt_p_001c) , SWAP_SMT_P001C } , { SMT_P001D, sizeof(struct smt_p_001d) , SWAP_SMT_P001D } , #endif #if 0 { SMT_P_FSC, sizeof(struct smt_p_fsc) , SWAP_SMT_P_FSC } , #endif { SMT_P_SETCOUNT,0, SWAP_SMT_P_SETCOUNT } , { SMT_P1048, 0, SWAP_SMT_P1048 } , { SMT_P208C, 0, SWAP_SMT_P208C } , { SMT_P208D, 0, SWAP_SMT_P208D } , { SMT_P208E, 0, SWAP_SMT_P208E } , { SMT_P208F, 0, SWAP_SMT_P208F } , { SMT_P2090, 0, SWAP_SMT_P2090 } , #ifdef ESS { SMT_P320B, sizeof(struct smt_p_320b) , SWAP_SMT_P320B } , { SMT_P320F, sizeof(struct smt_p_320f) , SWAP_SMT_P320F } , { SMT_P3210, sizeof(struct smt_p_3210) , SWAP_SMT_P3210 } , #endif { SMT_P4050, 0, SWAP_SMT_P4050 } , { SMT_P4051, 0, SWAP_SMT_P4051 } , { SMT_P4052, 0, SWAP_SMT_P4052 } , { SMT_P4053, 0, SWAP_SMT_P4053 } , } ; #define N_SMT_PLEN ARRAY_SIZE(smt_pdef) #endif int smt_check_para(struct s_smc *smc, struct smt_header *sm, const u_short list[]) { const u_short *p = list ; while (*p) { if (!sm_to_para(smc,sm,(int) *p)) { DB_SMT("SMT: smt_check_para - missing para %hx", *p); return -1; } p++ ; } return 0; } void *sm_to_para(struct s_smc *smc, struct smt_header *sm, int para) { char *p ; int len ; int plen ; void *found = NULL; SK_UNUSED(smc) ; len = sm->smt_len ; p = (char *)(sm+1) ; /* pointer to info */ while (len > 0 ) { if (((struct smt_para *)p)->p_type == para) found = (void *) p ; plen = ((struct smt_para *)p)->p_len + PARA_LEN ; p += plen ; len -= plen ; if (len < 0) { DB_SMT("SMT : sm_to_para - length error %d", plen); return NULL; } if ((plen & 3) && (para != SMT_P_ECHODATA)) { DB_SMT("SMT : sm_to_para - odd length %d", plen); return NULL; } if (found) return found; } return NULL; } #if 0 /* * send ANTC data test frame */ void fddi_send_antc(struct s_smc *smc, struct fddi_addr *dest) { SK_UNUSED(smc) ; SK_UNUSED(dest) ; #if 0 SMbuf *mb ; struct smt_header *smt ; int i ; char *p ; mb = smt_get_mbuf() ; mb->sm_len = 3000+12 ; p = smtod(mb, char *) + 12 ; for (i = 0 ; i < 3000 ; i++) *p++ = 1 << (i&7) ; smt = smtod(mb, struct smt_header *) ; smt->smt_dest = *dest ; smt->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ; smt_send_mbuf(smc,mb,FC_ASYNC_LLC) ; #endif } #endif /* * return static mac index */ static int mac_index(struct s_smc *smc, int mac) { SK_UNUSED(mac) ; #ifdef CONCENTRATOR SK_UNUSED(smc) ; return NUMPHYS + 1; #else return (smc->s.sas == SMT_SAS) ? 2 : 3; #endif } /* * return static phy index */ static int phy_index(struct s_smc *smc, int phy) { SK_UNUSED(smc) ; return phy + 1; } /* * return dynamic mac connection resource index */ static int mac_con_resource_index(struct s_smc *smc, int mac) { #ifdef CONCENTRATOR SK_UNUSED(smc) ; SK_UNUSED(mac) ; return entity_to_index(smc, cem_get_downstream(smc, ENTITY_MAC)); #else SK_UNUSED(mac) ; switch (smc->mib.fddiSMTCF_State) { case SC9_C_WRAP_A : case SC5_THRU_B : case SC11_C_WRAP_S : return 1; case SC10_C_WRAP_B : case SC4_THRU_A : return 2; } return smc->s.sas == SMT_SAS ? 2 : 3; #endif } /* * return dynamic phy connection resource index */ static int phy_con_resource_index(struct s_smc *smc, int phy) { #ifdef CONCENTRATOR return entity_to_index(smc, cem_get_downstream(smc, ENTITY_PHY(phy))) ; #else switch (smc->mib.fddiSMTCF_State) { case SC9_C_WRAP_A : return phy == PA ? 3 : 2; case SC10_C_WRAP_B : return phy == PA ? 1 : 3; case SC4_THRU_A : return phy == PA ? 3 : 1; case SC5_THRU_B : return phy == PA ? 2 : 3; case SC11_C_WRAP_S : return 2; } return phy; #endif } #ifdef CONCENTRATOR static int entity_to_index(struct s_smc *smc, int e) { if (e == ENTITY_MAC) return mac_index(smc, 1); else return phy_index(smc, e - ENTITY_PHY(0)); } #endif #ifdef LITTLE_ENDIAN static int smt_swap_short(u_short s) { return ((s>>8)&0xff) | ((s&0xff)<<8); } void smt_swap_para(struct smt_header *sm, int len, int direction) /* int direction; 0 encode 1 decode */ { struct smt_para *pa ; const struct smt_pdef *pd ; char *p ; int plen ; int type ; int i ; /* printf("smt_swap_para sm %x len %d dir %d\n", sm,len,direction) ; */ smt_string_swap((char *)sm,SWAP_SMTHEADER,len) ; /* swap args */ len -= sizeof(struct smt_header) ; p = (char *) (sm + 1) ; while (len > 0) { pa = (struct smt_para *) p ; plen = pa->p_len ; type = pa->p_type ; pa->p_type = smt_swap_short(pa->p_type) ; pa->p_len = smt_swap_short(pa->p_len) ; if (direction) { plen = pa->p_len ; type = pa->p_type ; } /* * note: paras can have 0 length ! */ if (plen < 0) break ; plen += PARA_LEN ; for (i = N_SMT_PLEN, pd = smt_pdef; i ; i--,pd++) { if (pd->ptype == type) break ; } if (i && pd->pswap) { smt_string_swap(p+PARA_LEN,pd->pswap,len) ; } len -= plen ; p += plen ; } } static void smt_string_swap(char *data, const char *format, int len) { const char *open_paren = NULL ; int x ; while (len > 0 && *format) { switch (*format) { case '[' : open_paren = format ; break ; case ']' : format = open_paren ; break ; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : data += *format - '0' ; len -= *format - '0' ; break ; case 'c': data++ ; len-- ; break ; case 's' : x = data[0] ; data[0] = data[1] ; data[1] = x ; data += 2 ; len -= 2 ; break ; case 'l' : x = data[0] ; data[0] = data[3] ; data[3] = x ; x = data[1] ; data[1] = data[2] ; data[2] = x ; data += 4 ; len -= 4 ; break ; } format++ ; } } #else void smt_swap_para(struct smt_header *sm, int len, int direction) /* int direction; 0 encode 1 decode */ { SK_UNUSED(sm) ; SK_UNUSED(len) ; SK_UNUSED(direction) ; } #endif /* * PMF actions */ int smt_action(struct s_smc *smc, int class, int code, int index) { int event ; int port ; DB_SMT("SMT: action %d code %d", class, code); switch(class) { case SMT_STATION_ACTION : switch(code) { case SMT_STATION_ACTION_CONNECT : smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ; queue_event(smc,EVENT_ECM,EC_CONNECT) ; break ; case SMT_STATION_ACTION_DISCONNECT : queue_event(smc,EVENT_ECM,EC_DISCONNECT) ; smc->mib.fddiSMTRemoteDisconnectFlag = TRUE ; RS_SET(smc,RS_DISCONNECT) ; AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_DISCONNECT, smt_get_event_word(smc)); break ; case SMT_STATION_ACTION_PATHTEST : AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) FDDI_SMT_EVENT, (u_long) FDDI_PATH_TEST, smt_get_event_word(smc)); break ; case SMT_STATION_ACTION_SELFTEST : AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_SELF_TEST, smt_get_event_word(smc)); break ; case SMT_STATION_ACTION_DISABLE_A : if (smc->y[PA].pc_mode == PM_PEER) { RS_SET(smc,RS_EVENT) ; queue_event(smc,EVENT_PCM+PA,PC_DISABLE) ; } break ; case SMT_STATION_ACTION_DISABLE_B : if (smc->y[PB].pc_mode == PM_PEER) { RS_SET(smc,RS_EVENT) ; queue_event(smc,EVENT_PCM+PB,PC_DISABLE) ; } break ; case SMT_STATION_ACTION_DISABLE_M : for (port = 0 ; port < NUMPHYS ; port++) { if (smc->mib.p[port].fddiPORTMy_Type != TM) continue ; RS_SET(smc,RS_EVENT) ; queue_event(smc,EVENT_PCM+port,PC_DISABLE) ; } break ; default : return 1; } break ; case SMT_PORT_ACTION : switch(code) { case SMT_PORT_ACTION_ENABLE : event = PC_ENABLE ; break ; case SMT_PORT_ACTION_DISABLE : event = PC_DISABLE ; break ; case SMT_PORT_ACTION_MAINT : event = PC_MAINT ; break ; case SMT_PORT_ACTION_START : event = PC_START ; break ; case SMT_PORT_ACTION_STOP : event = PC_STOP ; break ; default : return 1; } queue_event(smc,EVENT_PCM+index,event) ; break ; default : return 1; } return 0; } /* * canonical conversion of bytes beginning form *data */ #ifdef USE_CAN_ADDR static void hwm_conv_can(struct s_smc *smc, char *data, int len) { int i ; SK_UNUSED(smc) ; for (i = len; i ; i--, data++) *data = bitrev8(*data); } #endif #endif /* no SLIM_SMT */