root/drivers/net/fddi/skfp/pmf.c
// 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.
 *
 ******************************************************************************/

/*
        Parameter Management Frame processing for SMT 7.2
*/

#include "h/types.h"
#include "h/fddi.h"
#include "h/smc.h"
#include "h/smt_p.h"

#define KERNEL
#include "h/smtstate.h"

#ifndef SLIM_SMT

static int smt_authorize(struct s_smc *smc, struct smt_header *sm);
static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm);
static const struct s_p_tab* smt_get_ptab(u_short para);
static int smt_mib_phys(struct s_smc *smc);
static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
                        int local, int set);
void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
                  int index, int local);
static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
                                     int set, int local);
static int port_to_mib(struct s_smc *smc, int p);

#define MOFFSS(e)       offsetof(struct fddi_mib, e)
#define MOFFMS(e)       offsetof(struct fddi_mib_m, e)
#define MOFFAS(e)       offsetof(struct fddi_mib_a, e)
#define MOFFPS(e)       offsetof(struct fddi_mib_p, e)


#define AC_G    0x01            /* Get */
#define AC_GR   0x02            /* Get/Set */
#define AC_S    0x04            /* Set */
#define AC_NA   0x08
#define AC_GROUP        0x10            /* Group */
#define MS2BCLK(x)      ((x)*12500L)
/*
        F       LFag (byte)
        B       byte
        S       u_short 16 bit
        C       Counter 32 bit
        L       Long 32 bit
        T       Timer_2 32 bit
        P       TimeStamp ;
        A       LongAddress (6 byte)
        E       Enum 16 bit
        R       ResId 16 Bit
*/
static const struct s_p_tab {
        u_short p_num ;         /* parameter code */
        u_char  p_access ;      /* access rights */
        u_short p_offset ;      /* offset in mib */
        char    p_swap[3] ;     /* format string */
} p_tab[] = {
        /* StationIdGrp */
        { SMT_P100A,AC_GROUP    } ,
        { SMT_P100B,AC_G,       MOFFSS(fddiSMTStationId),       "8"     } ,
        { SMT_P100D,AC_G,       MOFFSS(fddiSMTOpVersionId),     "S"     } ,
        { SMT_P100E,AC_G,       MOFFSS(fddiSMTHiVersionId),     "S"     } ,
        { SMT_P100F,AC_G,       MOFFSS(fddiSMTLoVersionId),     "S"     } ,
        { SMT_P1010,AC_G,       MOFFSS(fddiSMTManufacturerData), "D" } ,
        { SMT_P1011,AC_GR,      MOFFSS(fddiSMTUserData),        "D"     } ,
        { SMT_P1012,AC_G,       MOFFSS(fddiSMTMIBVersionId),    "S"     } ,

        /* StationConfigGrp */
        { SMT_P1014,AC_GROUP    } ,
        { SMT_P1015,AC_G,       MOFFSS(fddiSMTMac_Ct),          "B"     } ,
        { SMT_P1016,AC_G,       MOFFSS(fddiSMTNonMaster_Ct),    "B"     } ,
        { SMT_P1017,AC_G,       MOFFSS(fddiSMTMaster_Ct),       "B"     } ,
        { SMT_P1018,AC_G,       MOFFSS(fddiSMTAvailablePaths),  "B"     } ,
        { SMT_P1019,AC_G,       MOFFSS(fddiSMTConfigCapabilities),"S"   } ,
        { SMT_P101A,AC_GR,      MOFFSS(fddiSMTConfigPolicy),    "wS"    } ,
        { SMT_P101B,AC_GR,      MOFFSS(fddiSMTConnectionPolicy),"wS"    } ,
        { SMT_P101D,AC_GR,      MOFFSS(fddiSMTTT_Notify),       "wS"    } ,
        { SMT_P101E,AC_GR,      MOFFSS(fddiSMTStatRptPolicy),   "bB"    } ,
        { SMT_P101F,AC_GR,      MOFFSS(fddiSMTTrace_MaxExpiration),"lL" } ,
        { SMT_P1020,AC_G,       MOFFSS(fddiSMTPORTIndexes),     "II"    } ,
        { SMT_P1021,AC_G,       MOFFSS(fddiSMTMACIndexes),      "I"     } ,
        { SMT_P1022,AC_G,       MOFFSS(fddiSMTBypassPresent),   "F"     } ,

        /* StatusGrp */
        { SMT_P1028,AC_GROUP    } ,
        { SMT_P1029,AC_G,       MOFFSS(fddiSMTECMState),        "E"     } ,
        { SMT_P102A,AC_G,       MOFFSS(fddiSMTCF_State),        "E"     } ,
        { SMT_P102C,AC_G,       MOFFSS(fddiSMTRemoteDisconnectFlag),"F" } ,
        { SMT_P102D,AC_G,       MOFFSS(fddiSMTStationStatus),   "E"     } ,
        { SMT_P102E,AC_G,       MOFFSS(fddiSMTPeerWrapFlag),    "F"     } ,

        /* MIBOperationGrp */
        { SMT_P1032,AC_GROUP    } ,
        { SMT_P1033,AC_G,       MOFFSS(fddiSMTTimeStamp),"P"            } ,
        { SMT_P1034,AC_G,       MOFFSS(fddiSMTTransitionTimeStamp),"P"  } ,
        /* NOTE : SMT_P1035 is already swapped ! SMT_P_SETCOUNT */
        { SMT_P1035,AC_G,       MOFFSS(fddiSMTSetCount),"4P"            } ,
        { SMT_P1036,AC_G,       MOFFSS(fddiSMTLastSetStationId),"8"     } ,

        { SMT_P103C,AC_S,       0,                              "wS"    } ,

        /*
         * PRIVATE EXTENSIONS
         * only accessible locally to get/set passwd
         */
        { SMT_P10F0,AC_GR,      MOFFSS(fddiPRPMFPasswd),        "8"     } ,
        { SMT_P10F1,AC_GR,      MOFFSS(fddiPRPMFStation),       "8"     } ,
#ifdef  ESS
        { SMT_P10F2,AC_GR,      MOFFSS(fddiESSPayload),         "lL"    } ,
        { SMT_P10F3,AC_GR,      MOFFSS(fddiESSOverhead),        "lL"    } ,
        { SMT_P10F4,AC_GR,      MOFFSS(fddiESSMaxTNeg),         "lL"    } ,
        { SMT_P10F5,AC_GR,      MOFFSS(fddiESSMinSegmentSize),  "lL"    } ,
        { SMT_P10F6,AC_GR,      MOFFSS(fddiESSCategory),        "lL"    } ,
        { SMT_P10F7,AC_GR,      MOFFSS(fddiESSSynchTxMode),     "wS"    } ,
#endif
#ifdef  SBA
        { SMT_P10F8,AC_GR,      MOFFSS(fddiSBACommand),         "bF"    } ,
        { SMT_P10F9,AC_GR,      MOFFSS(fddiSBAAvailable),       "bF"    } ,
#endif
        /* MAC Attributes */
        { SMT_P200A,AC_GROUP    } ,
        { SMT_P200B,AC_G,       MOFFMS(fddiMACFrameStatusFunctions),"S" } ,
        { SMT_P200D,AC_G,       MOFFMS(fddiMACT_MaxCapabilitiy),"T"     } ,
        { SMT_P200E,AC_G,       MOFFMS(fddiMACTVXCapabilitiy),"T"       } ,

        /* ConfigGrp */
        { SMT_P2014,AC_GROUP    } ,
        { SMT_P2016,AC_G,       MOFFMS(fddiMACAvailablePaths),  "B"     } ,
        { SMT_P2017,AC_G,       MOFFMS(fddiMACCurrentPath),     "S"     } ,
        { SMT_P2018,AC_G,       MOFFMS(fddiMACUpstreamNbr),     "A"     } ,
        { SMT_P2019,AC_G,       MOFFMS(fddiMACDownstreamNbr),   "A"     } ,
        { SMT_P201A,AC_G,       MOFFMS(fddiMACOldUpstreamNbr),  "A"     } ,
        { SMT_P201B,AC_G,       MOFFMS(fddiMACOldDownstreamNbr),"A"     } ,
        { SMT_P201D,AC_G,       MOFFMS(fddiMACDupAddressTest),  "E"     } ,
        { SMT_P2020,AC_GR,      MOFFMS(fddiMACRequestedPaths),  "wS"    } ,
        { SMT_P2021,AC_G,       MOFFMS(fddiMACDownstreamPORTType),"E"   } ,
        { SMT_P2022,AC_G,       MOFFMS(fddiMACIndex),           "S"     } ,

        /* AddressGrp */
        { SMT_P2028,AC_GROUP    } ,
        { SMT_P2029,AC_G,       MOFFMS(fddiMACSMTAddress),      "A"     } ,

        /* OperationGrp */
        { SMT_P2032,AC_GROUP    } ,
        { SMT_P2033,AC_G,       MOFFMS(fddiMACT_Req),           "T"     } ,
        { SMT_P2034,AC_G,       MOFFMS(fddiMACT_Neg),           "T"     } ,
        { SMT_P2035,AC_G,       MOFFMS(fddiMACT_Max),           "T"     } ,
        { SMT_P2036,AC_G,       MOFFMS(fddiMACTvxValue),        "T"     } ,
        { SMT_P2038,AC_G,       MOFFMS(fddiMACT_Pri0),          "T"     } ,
        { SMT_P2039,AC_G,       MOFFMS(fddiMACT_Pri1),          "T"     } ,
        { SMT_P203A,AC_G,       MOFFMS(fddiMACT_Pri2),          "T"     } ,
        { SMT_P203B,AC_G,       MOFFMS(fddiMACT_Pri3),          "T"     } ,
        { SMT_P203C,AC_G,       MOFFMS(fddiMACT_Pri4),          "T"     } ,
        { SMT_P203D,AC_G,       MOFFMS(fddiMACT_Pri5),          "T"     } ,
        { SMT_P203E,AC_G,       MOFFMS(fddiMACT_Pri6),          "T"     } ,


        /* CountersGrp */
        { SMT_P2046,AC_GROUP    } ,
        { SMT_P2047,AC_G,       MOFFMS(fddiMACFrame_Ct),        "C"     } ,
        { SMT_P2048,AC_G,       MOFFMS(fddiMACCopied_Ct),       "C"     } ,
        { SMT_P2049,AC_G,       MOFFMS(fddiMACTransmit_Ct),     "C"     } ,
        { SMT_P204A,AC_G,       MOFFMS(fddiMACToken_Ct),        "C"     } ,
        { SMT_P2051,AC_G,       MOFFMS(fddiMACError_Ct),        "C"     } ,
        { SMT_P2052,AC_G,       MOFFMS(fddiMACLost_Ct),         "C"     } ,
        { SMT_P2053,AC_G,       MOFFMS(fddiMACTvxExpired_Ct),   "C"     } ,
        { SMT_P2054,AC_G,       MOFFMS(fddiMACNotCopied_Ct),    "C"     } ,
        { SMT_P2056,AC_G,       MOFFMS(fddiMACRingOp_Ct),       "C"     } ,

        /* FrameErrorConditionGrp */
        { SMT_P205A,AC_GROUP    } ,
        { SMT_P205F,AC_GR,      MOFFMS(fddiMACFrameErrorThreshold),"wS" } ,
        { SMT_P2060,AC_G,       MOFFMS(fddiMACFrameErrorRatio), "S"     } ,

        /* NotCopiedConditionGrp */
        { SMT_P2064,AC_GROUP    } ,
        { SMT_P2067,AC_GR,      MOFFMS(fddiMACNotCopiedThreshold),"wS"  } ,
        { SMT_P2069,AC_G,       MOFFMS(fddiMACNotCopiedRatio),  "S"     } ,

        /* StatusGrp */
        { SMT_P206E,AC_GROUP    } ,
        { SMT_P206F,AC_G,       MOFFMS(fddiMACRMTState),        "S"     } ,
        { SMT_P2070,AC_G,       MOFFMS(fddiMACDA_Flag), "F"     } ,
        { SMT_P2071,AC_G,       MOFFMS(fddiMACUNDA_Flag),       "F"     } ,
        { SMT_P2072,AC_G,       MOFFMS(fddiMACFrameErrorFlag),  "F"     } ,
        { SMT_P2073,AC_G,       MOFFMS(fddiMACNotCopiedFlag),   "F"     } ,
        { SMT_P2074,AC_G,       MOFFMS(fddiMACMA_UnitdataAvailable),"F" } ,
        { SMT_P2075,AC_G,       MOFFMS(fddiMACHardwarePresent), "F"     } ,
        { SMT_P2076,AC_GR,      MOFFMS(fddiMACMA_UnitdataEnable),"bF"   } ,

        /*
         * PRIVATE EXTENSIONS
         * only accessible locally to get/set TMIN
         */
        { SMT_P20F0,AC_NA                                               } ,
        { SMT_P20F1,AC_GR,      MOFFMS(fddiMACT_Min),           "lT"    } ,

        /* Path Attributes */
        /*
         * DON't swap 320B,320F,3210: they are already swapped in swap_para()
         */
        { SMT_P320A,AC_GROUP    } ,
        { SMT_P320B,AC_G,       MOFFAS(fddiPATHIndex),          "r"     } ,
        { SMT_P320F,AC_GR,      MOFFAS(fddiPATHSbaPayload),     "l4"    } ,
        { SMT_P3210,AC_GR,      MOFFAS(fddiPATHSbaOverhead),    "l4"    } ,
        /* fddiPATHConfiguration */
        { SMT_P3212,AC_G,       0,                              ""      } ,
        { SMT_P3213,AC_GR,      MOFFAS(fddiPATHT_Rmode),        "lT"    } ,
        { SMT_P3214,AC_GR,      MOFFAS(fddiPATHSbaAvailable),   "lL"    } ,
        { SMT_P3215,AC_GR,      MOFFAS(fddiPATHTVXLowerBound),  "lT"    } ,
        { SMT_P3216,AC_GR,      MOFFAS(fddiPATHT_MaxLowerBound),"lT"    } ,
        { SMT_P3217,AC_GR,      MOFFAS(fddiPATHMaxT_Req),       "lT"    } ,

        /* Port Attributes */
        /* ConfigGrp */
        { SMT_P400A,AC_GROUP    } ,
        { SMT_P400C,AC_G,       MOFFPS(fddiPORTMy_Type),        "E"     } ,
        { SMT_P400D,AC_G,       MOFFPS(fddiPORTNeighborType),   "E"     } ,
        { SMT_P400E,AC_GR,      MOFFPS(fddiPORTConnectionPolicies),"bB" } ,
        { SMT_P400F,AC_G,       MOFFPS(fddiPORTMacIndicated),   "2"     } ,
        { SMT_P4010,AC_G,       MOFFPS(fddiPORTCurrentPath),    "E"     } ,
        { SMT_P4011,AC_GR,      MOFFPS(fddiPORTRequestedPaths), "l4"    } ,
        { SMT_P4012,AC_G,       MOFFPS(fddiPORTMACPlacement),   "S"     } ,
        { SMT_P4013,AC_G,       MOFFPS(fddiPORTAvailablePaths), "B"     } ,
        { SMT_P4016,AC_G,       MOFFPS(fddiPORTPMDClass),       "E"     } ,
        { SMT_P4017,AC_G,       MOFFPS(fddiPORTConnectionCapabilities), "B"} ,
        { SMT_P401D,AC_G,       MOFFPS(fddiPORTIndex),          "R"     } ,

        /* OperationGrp */
        { SMT_P401E,AC_GROUP    } ,
        { SMT_P401F,AC_GR,      MOFFPS(fddiPORTMaint_LS),       "wE"    } ,
        { SMT_P4021,AC_G,       MOFFPS(fddiPORTBS_Flag),        "F"     } ,
        { SMT_P4022,AC_G,       MOFFPS(fddiPORTPC_LS),          "E"     } ,

        /* ErrorCtrsGrp */
        { SMT_P4028,AC_GROUP    } ,
        { SMT_P4029,AC_G,       MOFFPS(fddiPORTEBError_Ct),     "C"     } ,
        { SMT_P402A,AC_G,       MOFFPS(fddiPORTLCTFail_Ct),     "C"     } ,

        /* LerGrp */
        { SMT_P4032,AC_GROUP    } ,
        { SMT_P4033,AC_G,       MOFFPS(fddiPORTLer_Estimate),   "F"     } ,
        { SMT_P4034,AC_G,       MOFFPS(fddiPORTLem_Reject_Ct),  "C"     } ,
        { SMT_P4035,AC_G,       MOFFPS(fddiPORTLem_Ct),         "C"     } ,
        { SMT_P403A,AC_GR,      MOFFPS(fddiPORTLer_Cutoff),     "bB"    } ,
        { SMT_P403B,AC_GR,      MOFFPS(fddiPORTLer_Alarm),      "bB"    } ,

        /* StatusGrp */
        { SMT_P403C,AC_GROUP    } ,
        { SMT_P403D,AC_G,       MOFFPS(fddiPORTConnectState),   "E"     } ,
        { SMT_P403E,AC_G,       MOFFPS(fddiPORTPCMStateX),      "E"     } ,
        { SMT_P403F,AC_G,       MOFFPS(fddiPORTPC_Withhold),    "E"     } ,
        { SMT_P4040,AC_G,       MOFFPS(fddiPORTLerFlag),        "F"     } ,
        { SMT_P4041,AC_G,       MOFFPS(fddiPORTHardwarePresent),"F"     } ,

        { SMT_P4046,AC_S,       0,                              "wS"    } ,

        { 0,    AC_GROUP        } ,
        { 0 }
} ;

void smt_pmf_received_pack(struct s_smc *smc, SMbuf *mb, int local)
{
        struct smt_header       *sm ;
        SMbuf           *reply ;

        sm = smtod(mb,struct smt_header *) ;
        DB_SMT("SMT: processing PMF frame at %p len %d", sm, mb->sm_len);
#ifdef  DEBUG
        dump_smt(smc,sm,"PMF Received") ;
#endif
        /*
         * Start the watchdog: It may be a long, long packet and
         * maybe the watchdog occurs ...
         */
        smt_start_watchdog(smc) ;

        if (sm->smt_class == SMT_PMF_GET ||
            sm->smt_class == SMT_PMF_SET) {
                reply = smt_build_pmf_response(smc,sm,
                        sm->smt_class == SMT_PMF_SET,local) ;
                if (reply) {
                        sm = smtod(reply,struct smt_header *) ;
#ifdef  DEBUG
                        dump_smt(smc,sm,"PMF Reply") ;
#endif
                        smt_send_frame(smc,reply,FC_SMT_INFO,local) ;
                }
        }
}

static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
                                     int set, int local)
{
        SMbuf                   *mb ;
        struct smt_header       *smt ;
        struct smt_para         *pa ;
        struct smt_p_reason     *res ;
        const struct s_p_tab    *pt ;
        int                     len ;
        int                     index ;
        int                     idx_end ;
        int                     error ;
        int                     range ;
        SK_LOC_DECL(struct s_pcon,pcon) ;
        SK_LOC_DECL(struct s_pcon,set_pcon) ;

        /*
         * build SMT header
         */
        if (!(mb = smt_get_mbuf(smc)))
                return mb;

        smt = smtod(mb, struct smt_header *) ;
        smt->smt_dest = req->smt_source ;       /* DA == source of request */
        smt->smt_class = req->smt_class ;       /* same class (GET/SET) */
        smt->smt_type = SMT_REPLY ;
        smt->smt_version = SMT_VID_2 ;
        smt->smt_tid = req->smt_tid ;           /* same TID */
        smt->smt_pad = 0 ;
        smt->smt_len = 0 ;

        /*
         * setup parameter status
         */
        pcon.pc_len = SMT_MAX_INFO_LEN ;        /* max para length */
        pcon.pc_err = 0 ;                       /* no error */
        pcon.pc_badset = 0 ;                    /* no bad set count */
        pcon.pc_p = (void *) (smt + 1) ;        /* paras start here */

        /*
         * check authoriziation and set count
         */
        error = 0 ;
        if (set) {
                if (!local && smt_authorize(smc,req))
                        error = SMT_RDF_AUTHOR ;
                else if (smt_check_set_count(smc,req))
                        pcon.pc_badset = SMT_RDF_BADSET ;
        }
        /*
         * add reason code and all mandatory parameters
         */
        res = (struct smt_p_reason *) pcon.pc_p ;
        smt_add_para(smc,&pcon,(u_short) SMT_P_REASON,0,0) ;
        smt_add_para(smc,&pcon,(u_short) SMT_P1033,0,0) ;
        /* update 1035 and 1036 later if set */
        set_pcon = pcon ;
        smt_add_para(smc,&pcon,(u_short) SMT_P1035,0,0) ;
        smt_add_para(smc,&pcon,(u_short) SMT_P1036,0,0) ;

        pcon.pc_err = error ;
        len = req->smt_len ;
        pa = (struct smt_para *) (req + 1) ;
        /*
         * process list of paras
         */
        while (!pcon.pc_err && len > 0 ) {
                if (((u_short)len < pa->p_len + PARA_LEN) || (pa->p_len & 3)) {
                        pcon.pc_err = SMT_RDF_LENGTH ;
                        break ;
                }

                if (((range = (pa->p_type & 0xf000)) == 0x2000) ||
                        range == 0x3000 || range == 0x4000) {
                        /*
                         * get index for PART,MAC ad PATH group
                         */
                        index = *((u_char *)pa + PARA_LEN + 3) ;/* index */
                        idx_end = index ;
                        if (!set && (pa->p_len != 4)) {
                                pcon.pc_err = SMT_RDF_LENGTH ;
                                break ;
                        }
                        if (!index && !set) {
                                switch (range) {
                                case 0x2000 :
                                        index = INDEX_MAC ;
                                        idx_end = index - 1 + NUMMACS ;
                                        break ;
                                case 0x3000 :
                                        index = INDEX_PATH ;
                                        idx_end = index - 1 + NUMPATHS ;
                                        break ;
                                case 0x4000 :
                                        index = INDEX_PORT ;
                                        idx_end = index - 1 + NUMPHYS ;
#ifndef CONCENTRATOR
                                        if (smc->s.sas == SMT_SAS)
                                                idx_end = INDEX_PORT ;
#endif
                                        break ;
                                }
                        }
                }
                else {
                        /*
                         * smt group has no index
                         */
                        if (!set && (pa->p_len != 0)) {
                                pcon.pc_err = SMT_RDF_LENGTH ;
                                break ;
                        }
                        index = 0 ;
                        idx_end = 0 ;
                }
                while (index <= idx_end) {
                        /*
                         * if group
                         *      add all paras of group
                         */
                        pt = smt_get_ptab(pa->p_type) ;
                        if (pt && pt->p_access == AC_GROUP && !set) {
                                pt++ ;
                                while (pt->p_access == AC_G ||
                                        pt->p_access == AC_GR) {
                                        smt_add_para(smc,&pcon,pt->p_num,
                                                index,local);
                                        pt++ ;
                                }
                        }
                        /*
                         * ignore
                         *      AUTHORIZATION in get/set
                         *      SET COUNT in set
                         */
                        else if (pa->p_type != SMT_P_AUTHOR &&
                                 (!set || (pa->p_type != SMT_P1035))) {
                                int     st ;
                                if (pcon.pc_badset) {
                                        smt_add_para(smc,&pcon,pa->p_type,
                                                index,local) ;
                                }
                                else if (set) {
                                        st = smt_set_para(smc,pa,index,local,1);
                                        /*
                                         * return para even if error
                                         */
                                        smt_add_para(smc,&pcon,pa->p_type,
                                                index,local) ;
                                        pcon.pc_err = st ;
                                }
                                else {
                                        if (pt && pt->p_access == AC_S) {
                                                pcon.pc_err =
                                                        SMT_RDF_ILLEGAL ;
                                        }
                                        smt_add_para(smc,&pcon,pa->p_type,
                                                index,local) ;
                                }
                        }
                        if (pcon.pc_err)
                                break ;
                        index++ ;
                }
                len -= pa->p_len + PARA_LEN ;
                pa = (struct smt_para *) ((char *)pa + pa->p_len + PARA_LEN) ;
        }
        smt->smt_len = SMT_MAX_INFO_LEN - pcon.pc_len ;
        mb->sm_len = smt->smt_len + sizeof(struct smt_header) ;

        /* update reason code */
        res->rdf_reason = pcon.pc_badset ? pcon.pc_badset :
                        pcon.pc_err ? pcon.pc_err : SMT_RDF_SUCCESS ;
        if (set && (res->rdf_reason == SMT_RDF_SUCCESS)) {
                /*
                 * increment set count
                 * set time stamp
                 * store station id of last set
                 */
                smc->mib.fddiSMTSetCount.count++ ;
                smt_set_timestamp(smc,smc->mib.fddiSMTSetCount.timestamp) ;
                smc->mib.fddiSMTLastSetStationId = req->smt_sid ;
                smt_add_para(smc,&set_pcon,(u_short) SMT_P1035,0,0) ;
                smt_add_para(smc,&set_pcon,(u_short) SMT_P1036,0,0) ;
        }
        return mb;
}

static int smt_authorize(struct s_smc *smc, struct smt_header *sm)
{
        struct smt_para *pa ;
        int             i ;
        char            *p ;

        /*
         * check source station id if not zero
         */
        p = (char *) &smc->mib.fddiPRPMFStation ;
        for (i = 0 ; i < 8 && !p[i] ; i++)
                ;
        if (i != 8) {
                if (memcmp((char *) &sm->smt_sid,
                        (char *) &smc->mib.fddiPRPMFStation,8))
                        return 1;
        }
        /*
         * check authoriziation parameter if passwd not zero
         */
        p = (char *) smc->mib.fddiPRPMFPasswd ;
        for (i = 0 ; i < 8 && !p[i] ; i++)
                ;
        if (i != 8) {
                pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P_AUTHOR) ;
                if (!pa)
                        return 1;
                if (pa->p_len != 8)
                        return 1;
                if (memcmp((char *)(pa+1),(char *)smc->mib.fddiPRPMFPasswd,8))
                        return 1;
        }
        return 0;
}

static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm)
{
        struct smt_para *pa ;
        struct smt_p_setcount   *sc ;

        pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P1035) ;
        if (pa) {
                sc = (struct smt_p_setcount *) pa ;
                if ((smc->mib.fddiSMTSetCount.count != sc->count) ||
                        memcmp((char *) smc->mib.fddiSMTSetCount.timestamp,
                        (char *)sc->timestamp,8))
                        return 1;
        }
        return 0;
}

void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
                  int index, int local)
{
        struct smt_para *pa ;
        const struct s_p_tab    *pt ;
        struct fddi_mib_m *mib_m = NULL;
        struct fddi_mib_p *mib_p = NULL;
        int             len ;
        int             plen ;
        char            *from ;
        char            *to ;
        const char      *swap ;
        char            c ;
        int             range ;
        char            *mib_addr ;
        int             mac ;
        int             path ;
        int             port ;
        int             sp_len ;

        /*
         * skip if error
         */
        if (pcon->pc_err)
                return ;

        /*
         * actions don't have a value
         */
        pt = smt_get_ptab(para) ;
        if (pt && pt->p_access == AC_S)
                return ;

        to = (char *) (pcon->pc_p) ;    /* destination pointer */
        len = pcon->pc_len ;            /* free space */
        plen = len ;                    /* remember start length */
        pa = (struct smt_para *) to ;   /* type/length pointer */
        to += PARA_LEN ;                /* skip smt_para */
        len -= PARA_LEN ;
        /*
         * set index if required
         */
        if (((range = (para & 0xf000)) == 0x2000) ||
                range == 0x3000 || range == 0x4000) {
                if (len < 4)
                        goto wrong_error ;
                to[0] = 0 ;
                to[1] = 0 ;
                to[2] = 0 ;
                to[3] = index ;
                len -= 4 ;
                to += 4 ;
        }
        mac = index - INDEX_MAC ;
        path = index - INDEX_PATH ;
        port = index - INDEX_PORT ;
        /*
         * get pointer to mib
         */
        switch (range) {
        case 0x1000 :
        default :
                mib_addr = (char *) (&smc->mib) ;
                break ;
        case 0x2000 :
                if (mac < 0 || mac >= NUMMACS) {
                        pcon->pc_err = SMT_RDF_NOPARAM ;
                        return ;
                }
                mib_addr = (char *) (&smc->mib.m[mac]) ;
                mib_m = (struct fddi_mib_m *) mib_addr ;
                break ;
        case 0x3000 :
                if (path < 0 || path >= NUMPATHS) {
                        pcon->pc_err = SMT_RDF_NOPARAM ;
                        return ;
                }
                mib_addr = (char *) (&smc->mib.a[path]) ;
                break ;
        case 0x4000 :
                if (port < 0 || port >= smt_mib_phys(smc)) {
                        pcon->pc_err = SMT_RDF_NOPARAM ;
                        return ;
                }
                mib_addr = (char *) (&smc->mib.p[port_to_mib(smc,port)]) ;
                mib_p = (struct fddi_mib_p *) mib_addr ;
                break ;
        }
        /*
         * check special paras
         */
        swap = NULL;
        switch (para) {
        case SMT_P10F0 :
        case SMT_P10F1 :
#ifdef  ESS
        case SMT_P10F2 :
        case SMT_P10F3 :
        case SMT_P10F4 :
        case SMT_P10F5 :
        case SMT_P10F6 :
        case SMT_P10F7 :
#endif
#ifdef  SBA
        case SMT_P10F8 :
        case SMT_P10F9 :
#endif
        case SMT_P20F1 :
                if (!local) {
                        pcon->pc_err = SMT_RDF_NOPARAM ;
                        return ;
                }
                break ;
        case SMT_P2034 :
        case SMT_P2046 :
        case SMT_P2047 :
        case SMT_P204A :
        case SMT_P2051 :
        case SMT_P2052 :
                mac_update_counter(smc) ;
                break ;
        case SMT_P4022:
                mib_p->fddiPORTPC_LS = LS2MIB(
                        sm_pm_get_ls(smc,port_to_mib(smc,port))) ;
                break ;
        case SMT_P_REASON :
                *(u32 *)to = 0 ;
                sp_len = 4 ;
                goto sp_done ;
        case SMT_P1033 :                        /* time stamp */
                smt_set_timestamp(smc,smc->mib.fddiSMTTimeStamp) ;
                break ;

        case SMT_P1020:                         /* port indexes */
#if     NUMPHYS == 12
                swap = "IIIIIIIIIIII" ;
#else
#if     NUMPHYS == 2
                if (smc->s.sas == SMT_SAS)
                        swap = "I" ;
                else
                        swap = "II" ;
#else
#if     NUMPHYS == 24
                swap = "IIIIIIIIIIIIIIIIIIIIIIII" ;
#else
        ????
#endif
#endif
#endif
                break ;
        case SMT_P3212 :
                {
                        sp_len = cem_build_path(smc,to,path) ;
                        goto sp_done ;
                }
        case SMT_P1048 :                /* peer wrap condition */
                {
                        struct smt_p_1048       *sp ;
                        sp = (struct smt_p_1048 *) to ;
                        sp->p1048_flag = smc->mib.fddiSMTPeerWrapFlag ;
                        sp->p1048_cf_state = smc->mib.fddiSMTCF_State ;
                        sp_len = sizeof(struct smt_p_1048) ;
                        goto sp_done ;
                }
        case SMT_P208C :
                {
                        struct smt_p_208c       *sp ;
                        sp = (struct smt_p_208c *) to ;
                        sp->p208c_flag =
                                smc->mib.m[MAC0].fddiMACDuplicateAddressCond ;
                        sp->p208c_dupcondition =
                                (mib_m->fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0) |
                                (mib_m->fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0);
                        sp->p208c_fddilong =
                                mib_m->fddiMACSMTAddress ;
                        sp->p208c_fddiunalong =
                                mib_m->fddiMACUpstreamNbr ;
                        sp->p208c_pad = 0 ;
                        sp_len = sizeof(struct smt_p_208c) ;
                        goto sp_done ;
                }
        case SMT_P208D :                /* frame error condition */
                {
                        struct smt_p_208d       *sp ;
                        sp = (struct smt_p_208d *) to ;
                        sp->p208d_flag =
                                mib_m->fddiMACFrameErrorFlag ;
                        sp->p208d_frame_ct =
                                mib_m->fddiMACFrame_Ct ;
                        sp->p208d_error_ct =
                                mib_m->fddiMACError_Ct ;
                        sp->p208d_lost_ct =
                                mib_m->fddiMACLost_Ct ;
                        sp->p208d_ratio =
                                mib_m->fddiMACFrameErrorRatio ;
                        sp_len = sizeof(struct smt_p_208d) ;
                        goto sp_done ;
                }
        case SMT_P208E :                /* not copied condition */
                {
                        struct smt_p_208e       *sp ;
                        sp = (struct smt_p_208e *) to ;
                        sp->p208e_flag =
                                mib_m->fddiMACNotCopiedFlag ;
                        sp->p208e_not_copied =
                                mib_m->fddiMACNotCopied_Ct ;
                        sp->p208e_copied =
                                mib_m->fddiMACCopied_Ct ;
                        sp->p208e_not_copied_ratio =
                                mib_m->fddiMACNotCopiedRatio ;
                        sp_len = sizeof(struct smt_p_208e) ;
                        goto sp_done ;
                }
        case SMT_P208F :        /* neighbor change event */
                {
                        struct smt_p_208f       *sp ;
                        sp = (struct smt_p_208f *) to ;
                        sp->p208f_multiple =
                                mib_m->fddiMACMultiple_N ;
                        sp->p208f_nacondition =
                                mib_m->fddiMACDuplicateAddressCond ;
                        sp->p208f_old_una =
                                mib_m->fddiMACOldUpstreamNbr ;
                        sp->p208f_new_una =
                                mib_m->fddiMACUpstreamNbr ;
                        sp->p208f_old_dna =
                                mib_m->fddiMACOldDownstreamNbr ;
                        sp->p208f_new_dna =
                                mib_m->fddiMACDownstreamNbr ;
                        sp->p208f_curren_path =
                                mib_m->fddiMACCurrentPath ;
                        sp->p208f_smt_address =
                                mib_m->fddiMACSMTAddress ;
                        sp_len = sizeof(struct smt_p_208f) ;
                        goto sp_done ;
                }
        case SMT_P2090 :
                {
                        struct smt_p_2090       *sp ;
                        sp = (struct smt_p_2090 *) to ;
                        sp->p2090_multiple =
                                mib_m->fddiMACMultiple_P ;
                        sp->p2090_availablepaths =
                                mib_m->fddiMACAvailablePaths ;
                        sp->p2090_currentpath =
                                mib_m->fddiMACCurrentPath ;
                        sp->p2090_requestedpaths =
                                mib_m->fddiMACRequestedPaths ;
                        sp_len = sizeof(struct smt_p_2090) ;
                        goto sp_done ;
                }
        case SMT_P4050 :
                {
                        struct smt_p_4050       *sp ;
                        sp = (struct smt_p_4050 *) to ;
                        sp->p4050_flag =
                                mib_p->fddiPORTLerFlag ;
                        sp->p4050_pad = 0 ;
                        sp->p4050_cutoff =
                                mib_p->fddiPORTLer_Cutoff ;
                        sp->p4050_alarm =
                                mib_p->fddiPORTLer_Alarm ;
                        sp->p4050_estimate =
                                mib_p->fddiPORTLer_Estimate ;
                        sp->p4050_reject_ct =
                                mib_p->fddiPORTLem_Reject_Ct ;
                        sp->p4050_ct =
                                mib_p->fddiPORTLem_Ct ;
                        sp_len = sizeof(struct smt_p_4050) ;
                        goto sp_done ;
                }

        case SMT_P4051 :
                {
                        struct smt_p_4051       *sp ;
                        sp = (struct smt_p_4051 *) to ;
                        sp->p4051_multiple =
                                mib_p->fddiPORTMultiple_U ;
                        sp->p4051_porttype =
                                mib_p->fddiPORTMy_Type ;
                        sp->p4051_connectstate =
                                mib_p->fddiPORTConnectState ;
                        sp->p4051_pc_neighbor =
                                mib_p->fddiPORTNeighborType ;
                        sp->p4051_pc_withhold =
                                mib_p->fddiPORTPC_Withhold ;
                        sp_len = sizeof(struct smt_p_4051) ;
                        goto sp_done ;
                }
        case SMT_P4052 :
                {
                        struct smt_p_4052       *sp ;
                        sp = (struct smt_p_4052 *) to ;
                        sp->p4052_flag =
                                mib_p->fddiPORTEB_Condition ;
                        sp->p4052_eberrorcount =
                                mib_p->fddiPORTEBError_Ct ;
                        sp_len = sizeof(struct smt_p_4052) ;
                        goto sp_done ;
                }
        case SMT_P4053 :
                {
                        struct smt_p_4053       *sp ;
                        sp = (struct smt_p_4053 *) to ;
                        sp->p4053_multiple =
                                mib_p->fddiPORTMultiple_P ;
                        sp->p4053_availablepaths =
                                mib_p->fddiPORTAvailablePaths ;
                        sp->p4053_currentpath =
                                mib_p->fddiPORTCurrentPath ;
                        memcpy( (char *) &sp->p4053_requestedpaths,
                                (char *) mib_p->fddiPORTRequestedPaths,4) ;
                        sp->p4053_mytype =
                                mib_p->fddiPORTMy_Type ;
                        sp->p4053_neighbortype =
                                mib_p->fddiPORTNeighborType ;
                        sp_len = sizeof(struct smt_p_4053) ;
                        goto sp_done ;
                }
        default :
                break ;
        }
        /*
         * in table ?
         */
        if (!pt) {
                pcon->pc_err = (para & 0xff00) ? SMT_RDF_NOPARAM :
                                                SMT_RDF_ILLEGAL ;
                return ;
        }
        /*
         * check access rights
         */
        switch (pt->p_access) {
        case AC_G :
        case AC_GR :
                break ;
        default :
                pcon->pc_err = SMT_RDF_ILLEGAL ;
                return ;
        }
        from = mib_addr + pt->p_offset ;
        if (!swap)
                swap = pt->p_swap ;             /* pointer to swap string */

        /*
         * copy values
         */
        while ((c = *swap++)) {
                switch(c) {
                case 'b' :
                case 'w' :
                case 'l' :
                        break ;
                case 'S' :
                case 'E' :
                case 'R' :
                case 'r' :
                        if (len < 4)
                                goto len_error ;
                        to[0] = 0 ;
                        to[1] = 0 ;
#ifdef  LITTLE_ENDIAN
                        if (c == 'r') {
                                to[2] = *from++ ;
                                to[3] = *from++ ;
                        }
                        else {
                                to[3] = *from++ ;
                                to[2] = *from++ ;
                        }
#else
                        to[2] = *from++ ;
                        to[3] = *from++ ;
#endif
                        to += 4 ;
                        len -= 4 ;
                        break ;
                case 'I' :              /* for SET of port indexes */
                        if (len < 2)
                                goto len_error ;
#ifdef  LITTLE_ENDIAN
                        to[1] = *from++ ;
                        to[0] = *from++ ;
#else
                        to[0] = *from++ ;
                        to[1] = *from++ ;
#endif
                        to += 2 ;
                        len -= 2 ;
                        break ;
                case 'F' :
                case 'B' :
                        if (len < 4)
                                goto len_error ;
                        len -= 4 ;
                        to[0] = 0 ;
                        to[1] = 0 ;
                        to[2] = 0 ;
                        to[3] = *from++ ;
                        to += 4 ;
                        break ;
                case 'C' :
                case 'T' :
                case 'L' :
                        if (len < 4)
                                goto len_error ;
#ifdef  LITTLE_ENDIAN
                        to[3] = *from++ ;
                        to[2] = *from++ ;
                        to[1] = *from++ ;
                        to[0] = *from++ ;
#else
                        to[0] = *from++ ;
                        to[1] = *from++ ;
                        to[2] = *from++ ;
                        to[3] = *from++ ;
#endif
                        len -= 4 ;
                        to += 4 ;
                        break ;
                case '2' :              /* PortMacIndicated */
                        if (len < 4)
                                goto len_error ;
                        to[0] = 0 ;
                        to[1] = 0 ;
                        to[2] = *from++ ;
                        to[3] = *from++ ;
                        len -= 4 ;
                        to += 4 ;
                        break ;
                case '4' :
                        if (len < 4)
                                goto len_error ;
                        to[0] = *from++ ;
                        to[1] = *from++ ;
                        to[2] = *from++ ;
                        to[3] = *from++ ;
                        len -= 4 ;
                        to += 4 ;
                        break ;
                case 'A' :
                        if (len < 8)
                                goto len_error ;
                        to[0] = 0 ;
                        to[1] = 0 ;
                        memcpy((char *) to+2,(char *) from,6) ;
                        to += 8 ;
                        from += 8 ;
                        len -= 8 ;
                        break ;
                case '8' :
                        if (len < 8)
                                goto len_error ;
                        memcpy((char *) to,(char *) from,8) ;
                        to += 8 ;
                        from += 8 ;
                        len -= 8 ;
                        break ;
                case 'D' :
                        if (len < 32)
                                goto len_error ;
                        memcpy((char *) to,(char *) from,32) ;
                        to += 32 ;
                        from += 32 ;
                        len -= 32 ;
                        break ;
                case 'P' :              /* timestamp is NOT swapped */
                        if (len < 8)
                                goto len_error ;
                        to[0] = *from++ ;
                        to[1] = *from++ ;
                        to[2] = *from++ ;
                        to[3] = *from++ ;
                        to[4] = *from++ ;
                        to[5] = *from++ ;
                        to[6] = *from++ ;
                        to[7] = *from++ ;
                        to += 8 ;
                        len -= 8 ;
                        break ;
                default :
                        SMT_PANIC(smc,SMT_E0119, SMT_E0119_MSG) ;
                        break ;
                }
        }

done:
        /*
         * make it even (in case of 'I' encoding)
         * note: len is DECREMENTED
         */
        if (len & 3) {
                to[0] = 0 ;
                to[1] = 0 ;
                to += 4 - (len & 3 ) ;
                len = len & ~ 3 ;
        }

        /* set type and length */
        pa->p_type = para ;
        pa->p_len = plen - len - PARA_LEN ;
        /* return values */
        pcon->pc_p = (void *) to ;
        pcon->pc_len = len ;
        return ;

sp_done:
        len -= sp_len ;
        to += sp_len ;
        goto done ;

len_error:
        /* parameter does not fit in frame */
        pcon->pc_err = SMT_RDF_TOOLONG ;
        return ;

wrong_error:
        pcon->pc_err = SMT_RDF_LENGTH ;
}

/*
 * set parameter
 */
static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
                        int local, int set)
{
#define IFSET(x)        if (set) (x)

        const struct s_p_tab    *pt ;
        int             len ;
        char            *from ;
        char            *to ;
        const char      *swap ;
        char            c ;
        char            *mib_addr ;
        struct fddi_mib *mib ;
        struct fddi_mib_m       *mib_m = NULL;
        struct fddi_mib_a       *mib_a = NULL;
        struct fddi_mib_p       *mib_p = NULL;
        int             mac ;
        int             path ;
        int             port ;
        SK_LOC_DECL(u_char,byte_val) ;
        SK_LOC_DECL(u_short,word_val) ;
        SK_LOC_DECL(u_long,long_val) ;

        mac = index - INDEX_MAC ;
        path = index - INDEX_PATH ;
        port = index - INDEX_PORT ;
        len = pa->p_len ;
        from = (char *) (pa + 1 ) ;

        mib = &smc->mib ;
        switch (pa->p_type & 0xf000) {
        case 0x1000 :
        default :
                mib_addr = (char *) mib ;
                break ;
        case 0x2000 :
                if (mac < 0 || mac >= NUMMACS) {
                        return SMT_RDF_NOPARAM;
                }
                mib_m = &smc->mib.m[mac] ;
                mib_addr = (char *) mib_m ;
                from += 4 ;             /* skip index */
                len -= 4 ;
                break ;
        case 0x3000 :
                if (path < 0 || path >= NUMPATHS) {
                        return SMT_RDF_NOPARAM;
                }
                mib_a = &smc->mib.a[path] ;
                mib_addr = (char *) mib_a ;
                from += 4 ;             /* skip index */
                len -= 4 ;
                break ;
        case 0x4000 :
                if (port < 0 || port >= smt_mib_phys(smc)) {
                        return SMT_RDF_NOPARAM;
                }
                mib_p = &smc->mib.p[port_to_mib(smc,port)] ;
                mib_addr = (char *) mib_p ;
                from += 4 ;             /* skip index */
                len -= 4 ;
                break ;
        }
        switch (pa->p_type) {
        case SMT_P10F0 :
        case SMT_P10F1 :
#ifdef  ESS
        case SMT_P10F2 :
        case SMT_P10F3 :
        case SMT_P10F4 :
        case SMT_P10F5 :
        case SMT_P10F6 :
        case SMT_P10F7 :
#endif
#ifdef  SBA
        case SMT_P10F8 :
        case SMT_P10F9 :
#endif
        case SMT_P20F1 :
                if (!local)
                        return SMT_RDF_NOPARAM;
                break ;
        }
        pt = smt_get_ptab(pa->p_type) ;
        if (!pt)
                return (pa->p_type & 0xff00) ? SMT_RDF_NOPARAM :
                                               SMT_RDF_ILLEGAL;
        switch (pt->p_access) {
        case AC_GR :
        case AC_S :
                break ;
        default :
                return SMT_RDF_ILLEGAL;
        }
        to = mib_addr + pt->p_offset ;
        swap = pt->p_swap ;             /* pointer to swap string */

        while (swap && (c = *swap++)) {
                switch(c) {
                case 'b' :
                        to = (char *) &byte_val ;
                        break ;
                case 'w' :
                        to = (char *) &word_val ;
                        break ;
                case 'l' :
                        to = (char *) &long_val ;
                        break ;
                case 'S' :
                case 'E' :
                case 'R' :
                case 'r' :
                        if (len < 4) {
                                goto len_error ;
                        }
                        if (from[0] | from[1])
                                goto val_error ;
#ifdef  LITTLE_ENDIAN
                        if (c == 'r') {
                                to[0] = from[2] ;
                                to[1] = from[3] ;
                        }
                        else {
                                to[1] = from[2] ;
                                to[0] = from[3] ;
                        }
#else
                        to[0] = from[2] ;
                        to[1] = from[3] ;
#endif
                        from += 4 ;
                        to += 2 ;
                        len -= 4 ;
                        break ;
                case 'F' :
                case 'B' :
                        if (len < 4) {
                                goto len_error ;
                        }
                        if (from[0] | from[1] | from[2])
                                goto val_error ;
                        to[0] = from[3] ;
                        len -= 4 ;
                        from += 4 ;
                        to += 4 ;
                        break ;
                case 'C' :
                case 'T' :
                case 'L' :
                        if (len < 4) {
                                goto len_error ;
                        }
#ifdef  LITTLE_ENDIAN
                        to[3] = *from++ ;
                        to[2] = *from++ ;
                        to[1] = *from++ ;
                        to[0] = *from++ ;
#else
                        to[0] = *from++ ;
                        to[1] = *from++ ;
                        to[2] = *from++ ;
                        to[3] = *from++ ;
#endif
                        len -= 4 ;
                        to += 4 ;
                        break ;
                case 'A' :
                        if (len < 8)
                                goto len_error ;
                        if (set)
                                memcpy(to,from+2,6) ;
                        to += 8 ;
                        from += 8 ;
                        len -= 8 ;
                        break ;
                case '4' :
                        if (len < 4)
                                goto len_error ;
                        if (set)
                                memcpy(to,from,4) ;
                        to += 4 ;
                        from += 4 ;
                        len -= 4 ;
                        break ;
                case '8' :
                        if (len < 8)
                                goto len_error ;
                        if (set)
                                memcpy(to,from,8) ;
                        to += 8 ;
                        from += 8 ;
                        len -= 8 ;
                        break ;
                case 'D' :
                        if (len < 32)
                                goto len_error ;
                        if (set)
                                memcpy(to,from,32) ;
                        to += 32 ;
                        from += 32 ;
                        len -= 32 ;
                        break ;
                case 'P' :              /* timestamp is NOT swapped */
                        if (set) {
                                to[0] = *from++ ;
                                to[1] = *from++ ;
                                to[2] = *from++ ;
                                to[3] = *from++ ;
                                to[4] = *from++ ;
                                to[5] = *from++ ;
                                to[6] = *from++ ;
                                to[7] = *from++ ;
                        }
                        to += 8 ;
                        len -= 8 ;
                        break ;
                default :
                        SMT_PANIC(smc,SMT_E0120, SMT_E0120_MSG) ;
                        return SMT_RDF_ILLEGAL;
                }
        }
        /*
         * actions and internal updates
         */
        switch (pa->p_type) {
        case SMT_P101A:                 /* fddiSMTConfigPolicy */
                if (word_val & ~1)
                        goto val_error ;
                IFSET(mib->fddiSMTConfigPolicy = word_val) ;
                break ;
        case SMT_P101B :                /* fddiSMTConnectionPolicy */
                if (!(word_val & POLICY_MM))
                        goto val_error ;
                IFSET(mib->fddiSMTConnectionPolicy = word_val) ;
                break ;
        case SMT_P101D :                /* fddiSMTTT_Notify */
                if (word_val < 2 || word_val > 30)
                        goto val_error ;
                IFSET(mib->fddiSMTTT_Notify = word_val) ;
                break ;
        case SMT_P101E :                /* fddiSMTStatRptPolicy */
                if (byte_val & ~1)
                        goto val_error ;
                IFSET(mib->fddiSMTStatRptPolicy = byte_val) ;
                break ;
        case SMT_P101F :                /* fddiSMTTrace_MaxExpiration */
                /*
                 * note: lower limit trace_max = 6.001773... s
                 * NO upper limit
                 */
                if (long_val < (long)0x478bf51L)
                        goto val_error ;
                IFSET(mib->fddiSMTTrace_MaxExpiration = long_val) ;
                break ;
#ifdef  ESS
        case SMT_P10F2 :                /* fddiESSPayload */
                if (long_val > 1562)
                        goto val_error ;
                if (set && smc->mib.fddiESSPayload != long_val) {
                        smc->ess.raf_act_timer_poll = TRUE ;
                        smc->mib.fddiESSPayload = long_val ;
                }
                break ;
        case SMT_P10F3 :                /* fddiESSOverhead */
                if (long_val < 50 || long_val > 5000)
                        goto val_error ;
                if (set && smc->mib.fddiESSPayload &&
                        smc->mib.fddiESSOverhead != long_val) {
                        smc->ess.raf_act_timer_poll = TRUE ;
                        smc->mib.fddiESSOverhead = long_val ;
                }
                break ;
        case SMT_P10F4 :                /* fddiESSMaxTNeg */
                if (long_val > -MS2BCLK(5) || long_val < -MS2BCLK(165))
                        goto val_error ;
                IFSET(mib->fddiESSMaxTNeg = long_val) ;
                break ;
        case SMT_P10F5 :                /* fddiESSMinSegmentSize */
                if (long_val < 1 || long_val > 4478)
                        goto val_error ;
                IFSET(mib->fddiESSMinSegmentSize = long_val) ;
                break ;
        case SMT_P10F6 :                /* fddiESSCategory */
                if ((long_val & 0xffff) != 1)
                        goto val_error ;
                IFSET(mib->fddiESSCategory = long_val) ;
                break ;
        case SMT_P10F7 :                /* fddiESSSyncTxMode */
                if (word_val > 1)
                        goto val_error ;
                IFSET(mib->fddiESSSynchTxMode = word_val) ;
                break ;
#endif
#ifdef  SBA
        case SMT_P10F8 :                /* fddiSBACommand */
                if (byte_val != SB_STOP && byte_val != SB_START)
                        goto val_error ;
                IFSET(mib->fddiSBACommand = byte_val) ;
                break ;
        case SMT_P10F9 :                /* fddiSBAAvailable */
                if (byte_val > 100)
                        goto val_error ;
                IFSET(mib->fddiSBAAvailable = byte_val) ;
                break ;
#endif
        case SMT_P2020 :                /* fddiMACRequestedPaths */
                if ((word_val & (MIB_P_PATH_PRIM_PREFER |
                        MIB_P_PATH_PRIM_ALTER)) == 0 )
                        goto val_error ;
                IFSET(mib_m->fddiMACRequestedPaths = word_val) ;
                break ;
        case SMT_P205F :                /* fddiMACFrameErrorThreshold */
                /* 0 .. ffff acceptable */
                IFSET(mib_m->fddiMACFrameErrorThreshold = word_val) ;
                break ;
        case SMT_P2067 :                /* fddiMACNotCopiedThreshold */
                /* 0 .. ffff acceptable */
                IFSET(mib_m->fddiMACNotCopiedThreshold = word_val) ;
                break ;
        case SMT_P2076:                 /* fddiMACMA_UnitdataEnable */
                if (byte_val & ~1)
                        goto val_error ;
                if (set) {
                        mib_m->fddiMACMA_UnitdataEnable = byte_val ;
                        queue_event(smc,EVENT_RMT,RM_ENABLE_FLAG) ;
                }
                break ;
        case SMT_P20F1 :                /* fddiMACT_Min */
                IFSET(mib_m->fddiMACT_Min = long_val) ;
                break ;
        case SMT_P320F :
                if (long_val > 1562)
                        goto val_error ;
                IFSET(mib_a->fddiPATHSbaPayload = long_val) ;
#ifdef  ESS
                if (set)
                        ess_para_change(smc) ;
#endif
                break ;
        case SMT_P3210 :
                if (long_val > 5000)
                        goto val_error ;
                
                if (long_val != 0 && mib_a->fddiPATHSbaPayload == 0)
                        goto val_error ;

                IFSET(mib_a->fddiPATHSbaOverhead = long_val) ;
#ifdef  ESS
                if (set)
                        ess_para_change(smc) ;
#endif
                break ;
        case SMT_P3213:                 /* fddiPATHT_Rmode */
                /* no limit :
                 * 0 .. 343.597 => 0 .. 2e32 * 80nS
                 */
                if (set) {
                        mib_a->fddiPATHT_Rmode = long_val ;
                        rtm_set_timer(smc) ;
                }
                break ;
        case SMT_P3214 :                /* fddiPATHSbaAvailable */
                if (long_val > 0x00BEBC20L)
                        goto val_error ;
#ifdef SBA 
                if (set && mib->fddiSBACommand == SB_STOP)
                        goto val_error ;
#endif
                IFSET(mib_a->fddiPATHSbaAvailable = long_val) ;
                break ;
        case SMT_P3215 :                /* fddiPATHTVXLowerBound */
                IFSET(mib_a->fddiPATHTVXLowerBound = long_val) ;
                goto change_mac_para ;
        case SMT_P3216 :                /* fddiPATHT_MaxLowerBound */
                IFSET(mib_a->fddiPATHT_MaxLowerBound = long_val) ;
                goto change_mac_para ;
        case SMT_P3217 :                /* fddiPATHMaxT_Req */
                IFSET(mib_a->fddiPATHMaxT_Req = long_val) ;

change_mac_para:
                if (set && smt_set_mac_opvalues(smc)) {
                        RS_SET(smc,RS_EVENT) ;
                        smc->sm.please_reconnect = 1 ;
                        queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
                }
                break ;
        case SMT_P400E :                /* fddiPORTConnectionPolicies */
                if (byte_val > 1)
                        goto val_error ;
                IFSET(mib_p->fddiPORTConnectionPolicies = byte_val) ;
                break ;
        case SMT_P4011 :                /* fddiPORTRequestedPaths */
                /* all 3*8 bits allowed */
                IFSET(memcpy((char *)mib_p->fddiPORTRequestedPaths,
                        (char *)&long_val,4)) ;
                break ;
        case SMT_P401F:                 /* fddiPORTMaint_LS */
                if (word_val > 4)
                        goto val_error ;
                IFSET(mib_p->fddiPORTMaint_LS = word_val) ;
                break ;
        case SMT_P403A :                /* fddiPORTLer_Cutoff */
                if (byte_val < 4 || byte_val > 15)
                        goto val_error ;
                IFSET(mib_p->fddiPORTLer_Cutoff = byte_val) ;
                break ;
        case SMT_P403B :                /* fddiPORTLer_Alarm */
                if (byte_val < 4 || byte_val > 15)
                        goto val_error ;
                IFSET(mib_p->fddiPORTLer_Alarm = byte_val) ;
                break ;

        /*
         * Actions
         */
        case SMT_P103C :                /* fddiSMTStationAction */
                if (smt_action(smc,SMT_STATION_ACTION, (int) word_val, 0))
                        goto val_error ;
                break ;
        case SMT_P4046:                 /* fddiPORTAction */
                if (smt_action(smc,SMT_PORT_ACTION, (int) word_val,
                        port_to_mib(smc,port)))
                        goto val_error ;
                break ;
        default :
                break ;
        }
        return 0;

val_error:
        /* parameter value in frame is out of range */
        return SMT_RDF_RANGE;

len_error:
        /* parameter value in frame is too short */
        return SMT_RDF_LENGTH;

#if     0
no_author_error:
        /* parameter not setable, because the SBA is not active
         * Please note: we give the return code 'not authorizeed
         *  because SBA denied is not a valid return code in the
         * PMF protocol.
         */
        return SMT_RDF_AUTHOR;
#endif
}

static const struct s_p_tab *smt_get_ptab(u_short para)
{
        const struct s_p_tab    *pt ;
        for (pt = p_tab ; pt->p_num && pt->p_num != para ; pt++)
                ;
        return pt->p_num ? pt : NULL;
}

static int smt_mib_phys(struct s_smc *smc)
{
#ifdef  CONCENTRATOR
        SK_UNUSED(smc) ;

        return NUMPHYS;
#else
        if (smc->s.sas == SMT_SAS)
                return 1;
        return NUMPHYS;
#endif
}

static int port_to_mib(struct s_smc *smc, int p)
{
#ifdef  CONCENTRATOR
        SK_UNUSED(smc) ;

        return p;
#else
        if (smc->s.sas == SMT_SAS)
                return PS;
        return p;
#endif
}


#ifdef  DEBUG
#ifndef BOOT
void dump_smt(struct s_smc *smc, struct smt_header *sm, char *text)
{
        int     len ;
        struct smt_para *pa ;
        char    *c ;
        int     n ;
        int     nn ;
#ifdef  LITTLE_ENDIAN
        int     smtlen ;
#endif

        SK_UNUSED(smc) ;

#ifdef  DEBUG_BRD
        if (smc->debug.d_smtf < 2)
#else
        if (debug.d_smtf < 2)
#endif
                return ;
#ifdef  LITTLE_ENDIAN
        smtlen = sm->smt_len + sizeof(struct smt_header) ;
#endif
        printf("SMT Frame [%s]:\nDA  ",text) ;
        dump_hex((char *) &sm->smt_dest,6) ;
        printf("\tSA ") ;
        dump_hex((char *) &sm->smt_source,6) ;
        printf(" Class %x Type %x Version %x\n",
                sm->smt_class,sm->smt_type,sm->smt_version)  ;
        printf("TID %x\t\tSID ", sm->smt_tid);
        dump_hex((char *) &sm->smt_sid,8) ;
        printf(" LEN %x\n",sm->smt_len) ;

        len = sm->smt_len ;
        pa = (struct smt_para *) (sm + 1) ;
        while (len > 0 ) {
                int     plen ;
#ifdef UNIX
                printf("TYPE %x LEN %x VALUE\t",pa->p_type,pa->p_len) ;
#else
                printf("TYPE %04x LEN %2x VALUE\t",pa->p_type,pa->p_len) ;
#endif
                n = pa->p_len ;
                if ( (n < 0 ) || (n > (int)(len - PARA_LEN))) {
                        n = len - PARA_LEN ;
                        printf(" BAD LENGTH\n") ;
                        break ;
                }
#ifdef  LITTLE_ENDIAN
                smt_swap_para(sm,smtlen,0) ;
#endif
                if (n < 24) {
                        dump_hex((char *)(pa+1),(int) n) ;
                        printf("\n") ;
                }
                else {
                        int     first = 0 ;
                        c = (char *)(pa+1) ;
                        dump_hex(c,16) ;
                        printf("\n") ;
                        n -= 16 ;
                        c += 16 ;
                        while (n > 0) {
                                nn = (n > 16) ? 16 : n ;
                                if (n > 64) {
                                        if (first == 0)
                                                printf("\t\t\t...\n") ;
                                        first = 1 ;
                                }
                                else {
                                        printf("\t\t\t") ;
                                        dump_hex(c,nn) ;
                                        printf("\n") ;
                                }
                                n -= nn ;
                                c += 16 ;
                        }
                }
#ifdef  LITTLE_ENDIAN
                smt_swap_para(sm,smtlen,1) ;
#endif
                plen = (pa->p_len + PARA_LEN + 3) & ~3 ;
                len -= plen ;
                pa = (struct smt_para *)((char *)pa + plen) ;
        }
        printf("-------------------------------------------------\n\n") ;
}

void dump_hex(char *p, int len)
{
        int     n = 0 ;
        while (len--) {
                n++ ;
#ifdef UNIX
                printf("%x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
#else
                printf("%02x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
#endif
        }
}
#endif  /* no BOOT */
#endif  /* DEBUG */


#endif  /* no SLIM_SMT */