kernel/drivers/net/fddi/skfp/pmf.c

   1 /******************************************************************************
   2  *
   3  *      (C)Copyright 1998,1999 SysKonnect,
   4  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   5  *
   6  *      See the file "skfddi.c" for further information.
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  *      The information in this file is provided "AS IS" without warranty.
  14  *
  15  ******************************************************************************/
  16
  17 /*
  18         Parameter Management Frame processing for SMT 7.2
  19 */
  20
  21 #include "h/types.h"
  22 #include "h/fddi.h"
  23 #include "h/smc.h"
  24 #include "h/smt_p.h"
  25
  26 #define KERNEL
  27 #include "h/smtstate.h"
  28
  29 #ifndef SLIM_SMT
  30
  31 #ifndef lint
  32 static const char ID_sccs[] = "@(#)pmf.c        1.37 97/08/04 (C) SK " ;
  33 #endif
  34
  35 static int smt_authorize(struct s_smc *smc, struct smt_header *sm);
  36 static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm);
  37 static const struct s_p_tab* smt_get_ptab(u_short para);
  38 static int smt_mib_phys(struct s_smc *smc);
  39 static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
  40                         int local, int set);
  41 void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
  42                   int index, int local);
  43 static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
  44                                      int set, int local);
  45 static int port_to_mib(struct s_smc *smc, int p);
  46
  47 #define MOFFSS(e)       offsetof(struct fddi_mib, e)
  48 #define MOFFMS(e)       offsetof(struct fddi_mib_m, e)
  49 #define MOFFAS(e)       offsetof(struct fddi_mib_a, e)
  50 #define MOFFPS(e)       offsetof(struct fddi_mib_p, e)
  51
  52
  53 #define AC_G    0x01            /* Get */
  54 #define AC_GR   0x02            /* Get/Set */
  55 #define AC_S    0x04            /* Set */
  56 #define AC_NA   0x08
  57 #define AC_GROUP        0x10            /* Group */
  58 #define MS2BCLK(x)      ((x)*12500L)
  59 /*
  60         F       LFag (byte)
  61         B       byte
  62         S       u_short 16 bit
  63         C       Counter 32 bit
  64         L       Long 32 bit
  65         T       Timer_2 32 bit
  66         P       TimeStamp ;
  67         A       LongAddress (6 byte)
  68         E       Enum 16 bit
  69         R       ResId 16 Bit
  70 */
  71 static const struct s_p_tab {
  72         u_short p_num ;         /* parameter code */
  73         u_char  p_access ;      /* access rights */
  74         u_short p_offset ;      /* offset in mib */
  75         char    p_swap[3] ;     /* format string */
  76 } p_tab[] = {
  77         /* StationIdGrp */
  78         { SMT_P100A,AC_GROUP    } ,
  79         { SMT_P100B,AC_G,       MOFFSS(fddiSMTStationId),       "8"     } ,
  80         { SMT_P100D,AC_G,       MOFFSS(fddiSMTOpVersionId),     "S"     } ,
  81         { SMT_P100E,AC_G,       MOFFSS(fddiSMTHiVersionId),     "S"     } ,
  82         { SMT_P100F,AC_G,       MOFFSS(fddiSMTLoVersionId),     "S"     } ,
  83         { SMT_P1010,AC_G,       MOFFSS(fddiSMTManufacturerData), "D" } ,
  84         { SMT_P1011,AC_GR,      MOFFSS(fddiSMTUserData),        "D"     } ,
  85         { SMT_P1012,AC_G,       MOFFSS(fddiSMTMIBVersionId),    "S"     } ,
  86
  87         /* StationConfigGrp */
  88         { SMT_P1014,AC_GROUP    } ,
  89         { SMT_P1015,AC_G,       MOFFSS(fddiSMTMac_Ct),          "B"     } ,
  90         { SMT_P1016,AC_G,       MOFFSS(fddiSMTNonMaster_Ct),    "B"     } ,
  91         { SMT_P1017,AC_G,       MOFFSS(fddiSMTMaster_Ct),       "B"     } ,
  92         { SMT_P1018,AC_G,       MOFFSS(fddiSMTAvailablePaths),  "B"     } ,
  93         { SMT_P1019,AC_G,       MOFFSS(fddiSMTConfigCapabilities),"S"   } ,
  94         { SMT_P101A,AC_GR,      MOFFSS(fddiSMTConfigPolicy),    "wS"    } ,
  95         { SMT_P101B,AC_GR,      MOFFSS(fddiSMTConnectionPolicy),"wS"    } ,
  96         { SMT_P101D,AC_GR,      MOFFSS(fddiSMTTT_Notify),       "wS"    } ,
  97         { SMT_P101E,AC_GR,      MOFFSS(fddiSMTStatRptPolicy),   "bB"    } ,
  98         { SMT_P101F,AC_GR,      MOFFSS(fddiSMTTrace_MaxExpiration),"lL" } ,
  99         { SMT_P1020,AC_G,       MOFFSS(fddiSMTPORTIndexes),     "II"    } ,
 100         { SMT_P1021,AC_G,       MOFFSS(fddiSMTMACIndexes),      "I"     } ,
 101         { SMT_P1022,AC_G,       MOFFSS(fddiSMTBypassPresent),   "F"     } ,
 102
 103         /* StatusGrp */
 104         { SMT_P1028,AC_GROUP    } ,
 105         { SMT_P1029,AC_G,       MOFFSS(fddiSMTECMState),        "E"     } ,
 106         { SMT_P102A,AC_G,       MOFFSS(fddiSMTCF_State),        "E"     } ,
 107         { SMT_P102C,AC_G,       MOFFSS(fddiSMTRemoteDisconnectFlag),"F" } ,
 108         { SMT_P102D,AC_G,       MOFFSS(fddiSMTStationStatus),   "E"     } ,
 109         { SMT_P102E,AC_G,       MOFFSS(fddiSMTPeerWrapFlag),    "F"     } ,
 110
 111         /* MIBOperationGrp */
 112         { SMT_P1032,AC_GROUP    } ,
 113         { SMT_P1033,AC_G,       MOFFSS(fddiSMTTimeStamp),"P"            } ,
 114         { SMT_P1034,AC_G,       MOFFSS(fddiSMTTransitionTimeStamp),"P"  } ,
 115         /* NOTE : SMT_P1035 is already swapped ! SMT_P_SETCOUNT */
 116         { SMT_P1035,AC_G,       MOFFSS(fddiSMTSetCount),"4P"            } ,
 117         { SMT_P1036,AC_G,       MOFFSS(fddiSMTLastSetStationId),"8"     } ,
 118
 119         { SMT_P103C,AC_S,       0,                              "wS"    } ,
 120
 121         /*
 122          * PRIVATE EXTENSIONS
 123          * only accessible locally to get/set passwd
 124          */
 125         { SMT_P10F0,AC_GR,      MOFFSS(fddiPRPMFPasswd),        "8"     } ,
 126         { SMT_P10F1,AC_GR,      MOFFSS(fddiPRPMFStation),       "8"     } ,
 127 #ifdef  ESS
 128         { SMT_P10F2,AC_GR,      MOFFSS(fddiESSPayload),         "lL"    } ,
 129         { SMT_P10F3,AC_GR,      MOFFSS(fddiESSOverhead),        "lL"    } ,
 130         { SMT_P10F4,AC_GR,      MOFFSS(fddiESSMaxTNeg),         "lL"    } ,
 131         { SMT_P10F5,AC_GR,      MOFFSS(fddiESSMinSegmentSize),  "lL"    } ,
 132         { SMT_P10F6,AC_GR,      MOFFSS(fddiESSCategory),        "lL"    } ,
 133         { SMT_P10F7,AC_GR,      MOFFSS(fddiESSSynchTxMode),     "wS"    } ,
 134 #endif
 135 #ifdef  SBA
 136         { SMT_P10F8,AC_GR,      MOFFSS(fddiSBACommand),         "bF"    } ,
 137         { SMT_P10F9,AC_GR,      MOFFSS(fddiSBAAvailable),       "bF"    } ,
 138 #endif
 139         /* MAC Attributes */
 140         { SMT_P200A,AC_GROUP    } ,
 141         { SMT_P200B,AC_G,       MOFFMS(fddiMACFrameStatusFunctions),"S" } ,
 142         { SMT_P200D,AC_G,       MOFFMS(fddiMACT_MaxCapabilitiy),"T"     } ,
 143         { SMT_P200E,AC_G,       MOFFMS(fddiMACTVXCapabilitiy),"T"       } ,
 144
 145         /* ConfigGrp */
 146         { SMT_P2014,AC_GROUP    } ,
 147         { SMT_P2016,AC_G,       MOFFMS(fddiMACAvailablePaths),  "B"     } ,
 148         { SMT_P2017,AC_G,       MOFFMS(fddiMACCurrentPath),     "S"     } ,
 149         { SMT_P2018,AC_G,       MOFFMS(fddiMACUpstreamNbr),     "A"     } ,
 150         { SMT_P2019,AC_G,       MOFFMS(fddiMACDownstreamNbr),   "A"     } ,
 151         { SMT_P201A,AC_G,       MOFFMS(fddiMACOldUpstreamNbr),  "A"     } ,
 152         { SMT_P201B,AC_G,       MOFFMS(fddiMACOldDownstreamNbr),"A"     } ,
 153         { SMT_P201D,AC_G,       MOFFMS(fddiMACDupAddressTest),  "E"     } ,
 154         { SMT_P2020,AC_GR,      MOFFMS(fddiMACRequestedPaths),  "wS"    } ,
 155         { SMT_P2021,AC_G,       MOFFMS(fddiMACDownstreamPORTType),"E"   } ,
 156         { SMT_P2022,AC_G,       MOFFMS(fddiMACIndex),           "S"     } ,
 157
 158         /* AddressGrp */
 159         { SMT_P2028,AC_GROUP    } ,
 160         { SMT_P2029,AC_G,       MOFFMS(fddiMACSMTAddress),      "A"     } ,
 161
 162         /* OperationGrp */
 163         { SMT_P2032,AC_GROUP    } ,
 164         { SMT_P2033,AC_G,       MOFFMS(fddiMACT_Req),           "T"     } ,
 165         { SMT_P2034,AC_G,       MOFFMS(fddiMACT_Neg),           "T"     } ,
 166         { SMT_P2035,AC_G,       MOFFMS(fddiMACT_Max),           "T"     } ,
 167         { SMT_P2036,AC_G,       MOFFMS(fddiMACTvxValue),        "T"     } ,
 168         { SMT_P2038,AC_G,       MOFFMS(fddiMACT_Pri0),          "T"     } ,
 169         { SMT_P2039,AC_G,       MOFFMS(fddiMACT_Pri1),          "T"     } ,
 170         { SMT_P203A,AC_G,       MOFFMS(fddiMACT_Pri2),          "T"     } ,
 171         { SMT_P203B,AC_G,       MOFFMS(fddiMACT_Pri3),          "T"     } ,
 172         { SMT_P203C,AC_G,       MOFFMS(fddiMACT_Pri4),          "T"     } ,
 173         { SMT_P203D,AC_G,       MOFFMS(fddiMACT_Pri5),          "T"     } ,
 174         { SMT_P203E,AC_G,       MOFFMS(fddiMACT_Pri6),          "T"     } ,
 175
 176
 177         /* CountersGrp */
 178         { SMT_P2046,AC_GROUP    } ,
 179         { SMT_P2047,AC_G,       MOFFMS(fddiMACFrame_Ct),        "C"     } ,
 180         { SMT_P2048,AC_G,       MOFFMS(fddiMACCopied_Ct),       "C"     } ,
 181         { SMT_P2049,AC_G,       MOFFMS(fddiMACTransmit_Ct),     "C"     } ,
 182         { SMT_P204A,AC_G,       MOFFMS(fddiMACToken_Ct),        "C"     } ,
 183         { SMT_P2051,AC_G,       MOFFMS(fddiMACError_Ct),        "C"     } ,
 184         { SMT_P2052,AC_G,       MOFFMS(fddiMACLost_Ct),         "C"     } ,
 185         { SMT_P2053,AC_G,       MOFFMS(fddiMACTvxExpired_Ct),   "C"     } ,
 186         { SMT_P2054,AC_G,       MOFFMS(fddiMACNotCopied_Ct),    "C"     } ,
 187         { SMT_P2056,AC_G,       MOFFMS(fddiMACRingOp_Ct),       "C"     } ,
 188
 189         /* FrameErrorConditionGrp */
 190         { SMT_P205A,AC_GROUP    } ,
 191         { SMT_P205F,AC_GR,      MOFFMS(fddiMACFrameErrorThreshold),"wS" } ,
 192         { SMT_P2060,AC_G,       MOFFMS(fddiMACFrameErrorRatio), "S"     } ,
 193
 194         /* NotCopiedConditionGrp */
 195         { SMT_P2064,AC_GROUP    } ,
 196         { SMT_P2067,AC_GR,      MOFFMS(fddiMACNotCopiedThreshold),"wS"  } ,
 197         { SMT_P2069,AC_G,       MOFFMS(fddiMACNotCopiedRatio),  "S"     } ,
 198
 199         /* StatusGrp */
 200         { SMT_P206E,AC_GROUP    } ,
 201         { SMT_P206F,AC_G,       MOFFMS(fddiMACRMTState),        "S"     } ,
 202         { SMT_P2070,AC_G,       MOFFMS(fddiMACDA_Flag), "F"     } ,
 203         { SMT_P2071,AC_G,       MOFFMS(fddiMACUNDA_Flag),       "F"     } ,
 204         { SMT_P2072,AC_G,       MOFFMS(fddiMACFrameErrorFlag),  "F"     } ,
 205         { SMT_P2073,AC_G,       MOFFMS(fddiMACNotCopiedFlag),   "F"     } ,
 206         { SMT_P2074,AC_G,       MOFFMS(fddiMACMA_UnitdataAvailable),"F" } ,
 207         { SMT_P2075,AC_G,       MOFFMS(fddiMACHardwarePresent), "F"     } ,
 208         { SMT_P2076,AC_GR,      MOFFMS(fddiMACMA_UnitdataEnable),"bF"   } ,
 209
 210         /*
 211          * PRIVATE EXTENSIONS
 212          * only accessible locally to get/set TMIN
 213          */
 214         { SMT_P20F0,AC_NA                                               } ,
 215         { SMT_P20F1,AC_GR,      MOFFMS(fddiMACT_Min),           "lT"    } ,
 216
 217         /* Path Attributes */
 218         /*
 219          * DON't swap 320B,320F,3210: they are already swapped in swap_para()
 220          */
 221         { SMT_P320A,AC_GROUP    } ,
 222         { SMT_P320B,AC_G,       MOFFAS(fddiPATHIndex),          "r"     } ,
 223         { SMT_P320F,AC_GR,      MOFFAS(fddiPATHSbaPayload),     "l4"    } ,
 224         { SMT_P3210,AC_GR,      MOFFAS(fddiPATHSbaOverhead),    "l4"    } ,
 225         /* fddiPATHConfiguration */
 226         { SMT_P3212,AC_G,       0,                              ""      } ,
 227         { SMT_P3213,AC_GR,      MOFFAS(fddiPATHT_Rmode),        "lT"    } ,
 228         { SMT_P3214,AC_GR,      MOFFAS(fddiPATHSbaAvailable),   "lL"    } ,
 229         { SMT_P3215,AC_GR,      MOFFAS(fddiPATHTVXLowerBound),  "lT"    } ,
 230         { SMT_P3216,AC_GR,      MOFFAS(fddiPATHT_MaxLowerBound),"lT"    } ,
 231         { SMT_P3217,AC_GR,      MOFFAS(fddiPATHMaxT_Req),       "lT"    } ,
 232
 233         /* Port Attributes */
 234         /* ConfigGrp */
 235         { SMT_P400A,AC_GROUP    } ,
 236         { SMT_P400C,AC_G,       MOFFPS(fddiPORTMy_Type),        "E"     } ,
 237         { SMT_P400D,AC_G,       MOFFPS(fddiPORTNeighborType),   "E"     } ,
 238         { SMT_P400E,AC_GR,      MOFFPS(fddiPORTConnectionPolicies),"bB" } ,
 239         { SMT_P400F,AC_G,       MOFFPS(fddiPORTMacIndicated),   "2"     } ,
 240         { SMT_P4010,AC_G,       MOFFPS(fddiPORTCurrentPath),    "E"     } ,
 241         { SMT_P4011,AC_GR,      MOFFPS(fddiPORTRequestedPaths), "l4"    } ,
 242         { SMT_P4012,AC_G,       MOFFPS(fddiPORTMACPlacement),   "S"     } ,
 243         { SMT_P4013,AC_G,       MOFFPS(fddiPORTAvailablePaths), "B"     } ,
 244         { SMT_P4016,AC_G,       MOFFPS(fddiPORTPMDClass),       "E"     } ,
 245         { SMT_P4017,AC_G,       MOFFPS(fddiPORTConnectionCapabilities), "B"} ,
 246         { SMT_P401D,AC_G,       MOFFPS(fddiPORTIndex),          "R"     } ,
 247
 248         /* OperationGrp */
 249         { SMT_P401E,AC_GROUP    } ,
 250         { SMT_P401F,AC_GR,      MOFFPS(fddiPORTMaint_LS),       "wE"    } ,
 251         { SMT_P4021,AC_G,       MOFFPS(fddiPORTBS_Flag),        "F"     } ,
 252         { SMT_P4022,AC_G,       MOFFPS(fddiPORTPC_LS),          "E"     } ,
 253
 254         /* ErrorCtrsGrp */
 255         { SMT_P4028,AC_GROUP    } ,
 256         { SMT_P4029,AC_G,       MOFFPS(fddiPORTEBError_Ct),     "C"     } ,
 257         { SMT_P402A,AC_G,       MOFFPS(fddiPORTLCTFail_Ct),     "C"     } ,
 258
 259         /* LerGrp */
 260         { SMT_P4032,AC_GROUP    } ,
 261         { SMT_P4033,AC_G,       MOFFPS(fddiPORTLer_Estimate),   "F"     } ,
 262         { SMT_P4034,AC_G,       MOFFPS(fddiPORTLem_Reject_Ct),  "C"     } ,
 263         { SMT_P4035,AC_G,       MOFFPS(fddiPORTLem_Ct),         "C"     } ,
 264         { SMT_P403A,AC_GR,      MOFFPS(fddiPORTLer_Cutoff),     "bB"    } ,
 265         { SMT_P403B,AC_GR,      MOFFPS(fddiPORTLer_Alarm),      "bB"    } ,
 266
 267         /* StatusGrp */
 268         { SMT_P403C,AC_GROUP    } ,
 269         { SMT_P403D,AC_G,       MOFFPS(fddiPORTConnectState),   "E"     } ,
 270         { SMT_P403E,AC_G,       MOFFPS(fddiPORTPCMStateX),      "E"     } ,
 271         { SMT_P403F,AC_G,       MOFFPS(fddiPORTPC_Withhold),    "E"     } ,
 272         { SMT_P4040,AC_G,       MOFFPS(fddiPORTLerFlag),        "F"     } ,
 273         { SMT_P4041,AC_G,       MOFFPS(fddiPORTHardwarePresent),"F"     } ,
 274
 275         { SMT_P4046,AC_S,       0,                              "wS"    } ,
 276
 277         { 0,    AC_GROUP        } ,
 278         { 0 }
 279 } ;
 280
 281 void smt_pmf_received_pack(struct s_smc *smc, SMbuf *mb, int local)
 282 {
 283         struct smt_header       *sm ;
 284         SMbuf           *reply ;
 285
 286         sm = smtod(mb,struct smt_header *) ;
 287         DB_SMT("SMT: processing PMF frame at %x len %d\n",sm,mb->sm_len) ;
 288 #ifdef  DEBUG
 289         dump_smt(smc,sm,"PMF Received") ;
 290 #endif
 291         /*
 292          * Start the watchdog: It may be a long, long packet and
 293          * maybe the watchdog occurs ...
 294          */
 295         smt_start_watchdog(smc) ;
 296
 297         if (sm->smt_class == SMT_PMF_GET ||
 298             sm->smt_class == SMT_PMF_SET) {
 299                 reply = smt_build_pmf_response(smc,sm,
 300                         sm->smt_class == SMT_PMF_SET,local) ;
 301                 if (reply) {
 302                         sm = smtod(reply,struct smt_header *) ;
 303 #ifdef  DEBUG
 304                         dump_smt(smc,sm,"PMF Reply") ;
 305 #endif
 306                         smt_send_frame(smc,reply,FC_SMT_INFO,local) ;
 307                 }
 308         }
 309 }
 310
 311 static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
 312                                      int set, int local)
 313 {
 314         SMbuf                   *mb ;
 315         struct smt_header       *smt ;
 316         struct smt_para         *pa ;
 317         struct smt_p_reason     *res ;
 318         const struct s_p_tab    *pt ;
 319         int                     len ;
 320         int                     index ;
 321         int                     idx_end ;
 322         int                     error ;
 323         int                     range ;
 324         SK_LOC_DECL(struct s_pcon,pcon) ;
 325         SK_LOC_DECL(struct s_pcon,set_pcon) ;
 326
 327         /*
 328          * build SMT header
 329          */
 330         if (!(mb = smt_get_mbuf(smc)))
 331                 return mb;
 332
 333         smt = smtod(mb, struct smt_header *) ;
 334         smt->smt_dest = req->smt_source ;       /* DA == source of request */
 335         smt->smt_class = req->smt_class ;       /* same class (GET/SET) */
 336         smt->smt_type = SMT_REPLY ;
 337         smt->smt_version = SMT_VID_2 ;
 338         smt->smt_tid = req->smt_tid ;           /* same TID */
 339         smt->smt_pad = 0 ;
 340         smt->smt_len = 0 ;
 341
 342         /*
 343          * setup parameter status
 344          */
 345         pcon.pc_len = SMT_MAX_INFO_LEN ;        /* max para length */
 346         pcon.pc_err = 0 ;                       /* no error */
 347         pcon.pc_badset = 0 ;                    /* no bad set count */
 348         pcon.pc_p = (void *) (smt + 1) ;        /* paras start here */
 349
 350         /*
 351          * check authoriziation and set count
 352          */
 353         error = 0 ;
 354         if (set) {
 355                 if (!local && smt_authorize(smc,req))
 356                         error = SMT_RDF_AUTHOR ;
 357                 else if (smt_check_set_count(smc,req))
 358                         pcon.pc_badset = SMT_RDF_BADSET ;
 359         }
 360         /*
 361          * add reason code and all mandatory parameters
 362          */
 363         res = (struct smt_p_reason *) pcon.pc_p ;
 364         smt_add_para(smc,&pcon,(u_short) SMT_P_REASON,0,0) ;
 365         smt_add_para(smc,&pcon,(u_short) SMT_P1033,0,0) ;
 366         /* update 1035 and 1036 later if set */
 367         set_pcon = pcon ;
 368         smt_add_para(smc,&pcon,(u_short) SMT_P1035,0,0) ;
 369         smt_add_para(smc,&pcon,(u_short) SMT_P1036,0,0) ;
 370
 371         pcon.pc_err = error ;
 372         len = req->smt_len ;
 373         pa = (struct smt_para *) (req + 1) ;
 374         /*
 375          * process list of paras
 376          */
 377         while (!pcon.pc_err && len > 0 ) {
 378                 if (((u_short)len < pa->p_len + PARA_LEN) || (pa->p_len & 3)) {
 379                         pcon.pc_err = SMT_RDF_LENGTH ;
 380                         break ;
 381                 }
 382
 383                 if (((range = (pa->p_type & 0xf000)) == 0x2000) ||
 384                         range == 0x3000 || range == 0x4000) {
 385                         /*
 386                          * get index for PART,MAC ad PATH group
 387                          */
 388                         index = *((u_char *)pa + PARA_LEN + 3) ;/* index */
 389                         idx_end = index ;
 390                         if (!set && (pa->p_len != 4)) {
 391                                 pcon.pc_err = SMT_RDF_LENGTH ;
 392                                 break ;
 393                         }
 394                         if (!index && !set) {
 395                                 switch (range) {
 396                                 case 0x2000 :
 397                                         index = INDEX_MAC ;
 398                                         idx_end = index - 1 + NUMMACS ;
 399                                         break ;
 400                                 case 0x3000 :
 401                                         index = INDEX_PATH ;
 402                                         idx_end = index - 1 + NUMPATHS ;
 403                                         break ;
 404                                 case 0x4000 :
 405                                         index = INDEX_PORT ;
 406                                         idx_end = index - 1 + NUMPHYS ;
 407 #ifndef CONCENTRATOR
 408                                         if (smc->s.sas == SMT_SAS)
 409                                                 idx_end = INDEX_PORT ;
 410 #endif
 411                                         break ;
 412                                 }
 413                         }
 414                 }
 415                 else {
 416                         /*
 417                          * smt group has no index
 418                          */
 419                         if (!set && (pa->p_len != 0)) {
 420                                 pcon.pc_err = SMT_RDF_LENGTH ;
 421                                 break ;
 422                         }
 423                         index = 0 ;
 424                         idx_end = 0 ;
 425                 }
 426                 while (index <= idx_end) {
 427                         /*
 428                          * if group
 429                          *      add all paras of group
 430                          */
 431                         pt = smt_get_ptab(pa->p_type) ;
 432                         if (pt && pt->p_access == AC_GROUP && !set) {
 433                                 pt++ ;
 434                                 while (pt->p_access == AC_G ||
 435                                         pt->p_access == AC_GR) {
 436                                         smt_add_para(smc,&pcon,pt->p_num,
 437                                                 index,local);
 438                                         pt++ ;
 439                                 }
 440                         }
 441                         /*
 442                          * ignore
 443                          *      AUTHORIZATION in get/set
 444                          *      SET COUNT in set
 445                          */
 446                         else if (pa->p_type != SMT_P_AUTHOR &&
 447                                  (!set || (pa->p_type != SMT_P1035))) {
 448                                 int     st ;
 449                                 if (pcon.pc_badset) {
 450                                         smt_add_para(smc,&pcon,pa->p_type,
 451                                                 index,local) ;
 452                                 }
 453                                 else if (set) {
 454                                         st = smt_set_para(smc,pa,index,local,1);
 455                                         /*
 456                                          * return para even if error
 457                                          */
 458                                         smt_add_para(smc,&pcon,pa->p_type,
 459                                                 index,local) ;
 460                                         pcon.pc_err = st ;
 461                                 }
 462                                 else {
 463                                         if (pt && pt->p_access == AC_S) {
 464                                                 pcon.pc_err =
 465                                                         SMT_RDF_ILLEGAL ;
 466                                         }
 467                                         smt_add_para(smc,&pcon,pa->p_type,
 468                                                 index,local) ;
 469                                 }
 470                         }
 471                         if (pcon.pc_err)
 472                                 break ;
 473                         index++ ;
 474                 }
 475                 len -= pa->p_len + PARA_LEN ;
 476                 pa = (struct smt_para *) ((char *)pa + pa->p_len + PARA_LEN) ;
 477         }
 478         smt->smt_len = SMT_MAX_INFO_LEN - pcon.pc_len ;
 479         mb->sm_len = smt->smt_len + sizeof(struct smt_header) ;
 480
 481         /* update reason code */
 482         res->rdf_reason = pcon.pc_badset ? pcon.pc_badset :
 483                         pcon.pc_err ? pcon.pc_err : SMT_RDF_SUCCESS ;
 484         if (set && (res->rdf_reason == SMT_RDF_SUCCESS)) {
 485                 /*
 486                  * increment set count
 487                  * set time stamp
 488                  * store station id of last set
 489                  */
 490                 smc->mib.fddiSMTSetCount.count++ ;
 491                 smt_set_timestamp(smc,smc->mib.fddiSMTSetCount.timestamp) ;
 492                 smc->mib.fddiSMTLastSetStationId = req->smt_sid ;
 493                 smt_add_para(smc,&set_pcon,(u_short) SMT_P1035,0,0) ;
 494                 smt_add_para(smc,&set_pcon,(u_short) SMT_P1036,0,0) ;
 495         }
 496         return mb;
 497 }
 498
 499 static int smt_authorize(struct s_smc *smc, struct smt_header *sm)
 500 {
 501         struct smt_para *pa ;
 502         int             i ;
 503         char            *p ;
 504
 505         /*
 506          * check source station id if not zero
 507          */
 508         p = (char *) &smc->mib.fddiPRPMFStation ;
 509         for (i = 0 ; i < 8 && !p[i] ; i++)
 510                 ;
 511         if (i != 8) {
 512                 if (memcmp((char *) &sm->smt_sid,
 513                         (char *) &smc->mib.fddiPRPMFStation,8))
 514                         return 1;
 515         }
 516         /*
 517          * check authoriziation parameter if passwd not zero
 518          */
 519         p = (char *) smc->mib.fddiPRPMFPasswd ;
 520         for (i = 0 ; i < 8 && !p[i] ; i++)
 521                 ;
 522         if (i != 8) {
 523                 pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P_AUTHOR) ;
 524                 if (!pa)
 525                         return 1;
 526                 if (pa->p_len != 8)
 527                         return 1;
 528                 if (memcmp((char *)(pa+1),(char *)smc->mib.fddiPRPMFPasswd,8))
 529                         return 1;
 530         }
 531         return 0;
 532 }
 533
 534 static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm)
 535 {
 536         struct smt_para *pa ;
 537         struct smt_p_setcount   *sc ;
 538
 539         pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P1035) ;
 540         if (pa) {
 541                 sc = (struct smt_p_setcount *) pa ;
 542                 if ((smc->mib.fddiSMTSetCount.count != sc->count) ||
 543                         memcmp((char *) smc->mib.fddiSMTSetCount.timestamp,
 544                         (char *)sc->timestamp,8))
 545                         return 1;
 546         }
 547         return 0;
 548 }
 549
 550 void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
 551                   int index, int local)
 552 {
 553         struct smt_para *pa ;
 554         const struct s_p_tab    *pt ;
 555         struct fddi_mib_m *mib_m = NULL;
 556         struct fddi_mib_p *mib_p = NULL;
 557         int             len ;
 558         int             plen ;
 559         char            *from ;
 560         char            *to ;
 561         const char      *swap ;
 562         char            c ;
 563         int             range ;
 564         char            *mib_addr ;
 565         int             mac ;
 566         int             path ;
 567         int             port ;
 568         int             sp_len ;
 569
 570         /*
 571          * skip if error
 572          */
 573         if (pcon->pc_err)
 574                 return ;
 575
 576         /*
 577          * actions don't have a value
 578          */
 579         pt = smt_get_ptab(para) ;
 580         if (pt && pt->p_access == AC_S)
 581                 return ;
 582
 583         to = (char *) (pcon->pc_p) ;    /* destination pointer */
 584         len = pcon->pc_len ;            /* free space */
 585         plen = len ;                    /* remember start length */
 586         pa = (struct smt_para *) to ;   /* type/length pointer */
 587         to += PARA_LEN ;                /* skip smt_para */
 588         len -= PARA_LEN ;
 589         /*
 590          * set index if required
 591          */
 592         if (((range = (para & 0xf000)) == 0x2000) ||
 593                 range == 0x3000 || range == 0x4000) {
 594                 if (len < 4)
 595                         goto wrong_error ;
 596                 to[0] = 0 ;
 597                 to[1] = 0 ;
 598                 to[2] = 0 ;
 599                 to[3] = index ;
 600                 len -= 4 ;
 601                 to += 4 ;
 602         }
 603         mac = index - INDEX_MAC ;
 604         path = index - INDEX_PATH ;
 605         port = index - INDEX_PORT ;
 606         /*
 607          * get pointer to mib
 608          */
 609         switch (range) {
 610         case 0x1000 :
 611         default :
 612                 mib_addr = (char *) (&smc->mib) ;
 613                 break ;
 614         case 0x2000 :
 615                 if (mac < 0 || mac >= NUMMACS) {
 616                         pcon->pc_err = SMT_RDF_NOPARAM ;
 617                         return ;
 618                 }
 619                 mib_addr = (char *) (&smc->mib.m[mac]) ;
 620                 mib_m = (struct fddi_mib_m *) mib_addr ;
 621                 break ;
 622         case 0x3000 :
 623                 if (path < 0 || path >= NUMPATHS) {
 624                         pcon->pc_err = SMT_RDF_NOPARAM ;
 625                         return ;
 626                 }
 627                 mib_addr = (char *) (&smc->mib.a[path]) ;
 628                 break ;
 629         case 0x4000 :
 630                 if (port < 0 || port >= smt_mib_phys(smc)) {
 631                         pcon->pc_err = SMT_RDF_NOPARAM ;
 632                         return ;
 633                 }
 634                 mib_addr = (char *) (&smc->mib.p[port_to_mib(smc,port)]) ;
 635                 mib_p = (struct fddi_mib_p *) mib_addr ;
 636                 break ;
 637         }
 638         /*
 639          * check special paras
 640          */
 641         swap = NULL;
 642         switch (para) {
 643         case SMT_P10F0 :
 644         case SMT_P10F1 :
 645 #ifdef  ESS
 646         case SMT_P10F2 :
 647         case SMT_P10F3 :
 648         case SMT_P10F4 :
 649         case SMT_P10F5 :
 650         case SMT_P10F6 :
 651         case SMT_P10F7 :
 652 #endif
 653 #ifdef  SBA
 654         case SMT_P10F8 :
 655         case SMT_P10F9 :
 656 #endif
 657         case SMT_P20F1 :
 658                 if (!local) {
 659                         pcon->pc_err = SMT_RDF_NOPARAM ;
 660                         return ;
 661                 }
 662                 break ;
 663         case SMT_P2034 :
 664         case SMT_P2046 :
 665         case SMT_P2047 :
 666         case SMT_P204A :
 667         case SMT_P2051 :
 668         case SMT_P2052 :
 669                 mac_update_counter(smc) ;
 670                 break ;
 671         case SMT_P4022:
 672                 mib_p->fddiPORTPC_LS = LS2MIB(
 673                         sm_pm_get_ls(smc,port_to_mib(smc,port))) ;
 674                 break ;
 675         case SMT_P_REASON :
 676                 *(u32 *)to = 0 ;
 677                 sp_len = 4 ;
 678                 goto sp_done ;
 679         case SMT_P1033 :                        /* time stamp */
 680                 smt_set_timestamp(smc,smc->mib.fddiSMTTimeStamp) ;
 681                 break ;
 682
 683         case SMT_P1020:                         /* port indexes */
 684 #if     NUMPHYS == 12
 685                 swap = "IIIIIIIIIIII" ;
 686 #else
 687 #if     NUMPHYS == 2
 688                 if (smc->s.sas == SMT_SAS)
 689                         swap = "I" ;
 690                 else
 691                         swap = "II" ;
 692 #else
 693 #if     NUMPHYS == 24
 694                 swap = "IIIIIIIIIIIIIIIIIIIIIIII" ;
 695 #else
 696         ????
 697 #endif
 698 #endif
 699 #endif
 700                 break ;
 701         case SMT_P3212 :
 702                 {
 703                         sp_len = cem_build_path(smc,to,path) ;
 704                         goto sp_done ;
 705                 }
 706         case SMT_P1048 :                /* peer wrap condition */
 707                 {
 708                         struct smt_p_1048       *sp ;
 709                         sp = (struct smt_p_1048 *) to ;
 710                         sp->p1048_flag = smc->mib.fddiSMTPeerWrapFlag ;
 711                         sp->p1048_cf_state = smc->mib.fddiSMTCF_State ;
 712                         sp_len = sizeof(struct smt_p_1048) ;
 713                         goto sp_done ;
 714                 }
 715         case SMT_P208C :
 716                 {
 717                         struct smt_p_208c       *sp ;
 718                         sp = (struct smt_p_208c *) to ;
 719                         sp->p208c_flag =
 720                                 smc->mib.m[MAC0].fddiMACDuplicateAddressCond ;
 721                         sp->p208c_dupcondition =
 722                                 (mib_m->fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0) |
 723                                 (mib_m->fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0);
 724                         sp->p208c_fddilong =
 725                                 mib_m->fddiMACSMTAddress ;
 726                         sp->p208c_fddiunalong =
 727                                 mib_m->fddiMACUpstreamNbr ;
 728                         sp->p208c_pad = 0 ;
 729                         sp_len = sizeof(struct smt_p_208c) ;
 730                         goto sp_done ;
 731                 }
 732         case SMT_P208D :                /* frame error condition */
 733                 {
 734                         struct smt_p_208d       *sp ;
 735                         sp = (struct smt_p_208d *) to ;
 736                         sp->p208d_flag =
 737                                 mib_m->fddiMACFrameErrorFlag ;
 738                         sp->p208d_frame_ct =
 739                                 mib_m->fddiMACFrame_Ct ;
 740                         sp->p208d_error_ct =
 741                                 mib_m->fddiMACError_Ct ;
 742                         sp->p208d_lost_ct =
 743                                 mib_m->fddiMACLost_Ct ;
 744                         sp->p208d_ratio =
 745                                 mib_m->fddiMACFrameErrorRatio ;
 746                         sp_len = sizeof(struct smt_p_208d) ;
 747                         goto sp_done ;
 748                 }
 749         case SMT_P208E :                /* not copied condition */
 750                 {
 751                         struct smt_p_208e       *sp ;
 752                         sp = (struct smt_p_208e *) to ;
 753                         sp->p208e_flag =
 754                                 mib_m->fddiMACNotCopiedFlag ;
 755                         sp->p208e_not_copied =
 756                                 mib_m->fddiMACNotCopied_Ct ;
 757                         sp->p208e_copied =
 758                                 mib_m->fddiMACCopied_Ct ;
 759                         sp->p208e_not_copied_ratio =
 760                                 mib_m->fddiMACNotCopiedRatio ;
 761                         sp_len = sizeof(struct smt_p_208e) ;
 762                         goto sp_done ;
 763                 }
 764         case SMT_P208F :        /* neighbor change event */
 765                 {
 766                         struct smt_p_208f       *sp ;
 767                         sp = (struct smt_p_208f *) to ;
 768                         sp->p208f_multiple =
 769                                 mib_m->fddiMACMultiple_N ;
 770                         sp->p208f_nacondition =
 771                                 mib_m->fddiMACDuplicateAddressCond ;
 772                         sp->p208f_old_una =
 773                                 mib_m->fddiMACOldUpstreamNbr ;
 774                         sp->p208f_new_una =
 775                                 mib_m->fddiMACUpstreamNbr ;
 776                         sp->p208f_old_dna =
 777                                 mib_m->fddiMACOldDownstreamNbr ;
 778                         sp->p208f_new_dna =
 779                                 mib_m->fddiMACDownstreamNbr ;
 780                         sp->p208f_curren_path =
 781                                 mib_m->fddiMACCurrentPath ;
 782                         sp->p208f_smt_address =
 783                                 mib_m->fddiMACSMTAddress ;
 784                         sp_len = sizeof(struct smt_p_208f) ;
 785                         goto sp_done ;
 786                 }
 787         case SMT_P2090 :
 788                 {
 789                         struct smt_p_2090       *sp ;
 790                         sp = (struct smt_p_2090 *) to ;
 791                         sp->p2090_multiple =
 792                                 mib_m->fddiMACMultiple_P ;
 793                         sp->p2090_availablepaths =
 794                                 mib_m->fddiMACAvailablePaths ;
 795                         sp->p2090_currentpath =
 796                                 mib_m->fddiMACCurrentPath ;
 797                         sp->p2090_requestedpaths =
 798                                 mib_m->fddiMACRequestedPaths ;
 799                         sp_len = sizeof(struct smt_p_2090) ;
 800                         goto sp_done ;
 801                 }
 802         case SMT_P4050 :
 803                 {
 804                         struct smt_p_4050       *sp ;
 805                         sp = (struct smt_p_4050 *) to ;
 806                         sp->p4050_flag =
 807                                 mib_p->fddiPORTLerFlag ;
 808                         sp->p4050_pad = 0 ;
 809                         sp->p4050_cutoff =
 810                                 mib_p->fddiPORTLer_Cutoff ;
 811                         sp->p4050_alarm =
 812                                 mib_p->fddiPORTLer_Alarm ;
 813                         sp->p4050_estimate =
 814                                 mib_p->fddiPORTLer_Estimate ;
 815                         sp->p4050_reject_ct =
 816                                 mib_p->fddiPORTLem_Reject_Ct ;
 817                         sp->p4050_ct =
 818                                 mib_p->fddiPORTLem_Ct ;
 819                         sp_len = sizeof(struct smt_p_4050) ;
 820                         goto sp_done ;
 821                 }
 822
 823         case SMT_P4051 :
 824                 {
 825                         struct smt_p_4051       *sp ;
 826                         sp = (struct smt_p_4051 *) to ;
 827                         sp->p4051_multiple =
 828                                 mib_p->fddiPORTMultiple_U ;
 829                         sp->p4051_porttype =
 830                                 mib_p->fddiPORTMy_Type ;
 831                         sp->p4051_connectstate =
 832                                 mib_p->fddiPORTConnectState ;
 833                         sp->p4051_pc_neighbor =
 834                                 mib_p->fddiPORTNeighborType ;
 835                         sp->p4051_pc_withhold =
 836                                 mib_p->fddiPORTPC_Withhold ;
 837                         sp_len = sizeof(struct smt_p_4051) ;
 838                         goto sp_done ;
 839                 }
 840         case SMT_P4052 :
 841                 {
 842                         struct smt_p_4052       *sp ;
 843                         sp = (struct smt_p_4052 *) to ;
 844                         sp->p4052_flag =
 845                                 mib_p->fddiPORTEB_Condition ;
 846                         sp->p4052_eberrorcount =
 847                                 mib_p->fddiPORTEBError_Ct ;
 848                         sp_len = sizeof(struct smt_p_4052) ;
 849                         goto sp_done ;
 850                 }
 851         case SMT_P4053 :
 852                 {
 853                         struct smt_p_4053       *sp ;
 854                         sp = (struct smt_p_4053 *) to ;
 855                         sp->p4053_multiple =
 856                                 mib_p->fddiPORTMultiple_P ;
 857                         sp->p4053_availablepaths =
 858                                 mib_p->fddiPORTAvailablePaths ;
 859                         sp->p4053_currentpath =
 860                                 mib_p->fddiPORTCurrentPath ;
 861                         memcpy( (char *) &sp->p4053_requestedpaths,
 862                                 (char *) mib_p->fddiPORTRequestedPaths,4) ;
 863                         sp->p4053_mytype =
 864                                 mib_p->fddiPORTMy_Type ;
 865                         sp->p4053_neighbortype =
 866                                 mib_p->fddiPORTNeighborType ;
 867                         sp_len = sizeof(struct smt_p_4053) ;
 868                         goto sp_done ;
 869                 }
 870         default :
 871                 break ;
 872         }
 873         /*
 874          * in table ?
 875          */
 876         if (!pt) {
 877                 pcon->pc_err = (para & 0xff00) ? SMT_RDF_NOPARAM :
 878                                                 SMT_RDF_ILLEGAL ;
 879                 return ;
 880         }
 881         /*
 882          * check access rights
 883          */
 884         switch (pt->p_access) {
 885         case AC_G :
 886         case AC_GR :
 887                 break ;
 888         default :
 889                 pcon->pc_err = SMT_RDF_ILLEGAL ;
 890                 return ;
 891         }
 892         from = mib_addr + pt->p_offset ;
 893         if (!swap)
 894                 swap = pt->p_swap ;             /* pointer to swap string */
 895
 896         /*
 897          * copy values
 898          */
 899         while ((c = *swap++)) {
 900                 switch(c) {
 901                 case 'b' :
 902                 case 'w' :
 903                 case 'l' :
 904                         break ;
 905                 case 'S' :
 906                 case 'E' :
 907                 case 'R' :
 908                 case 'r' :
 909                         if (len < 4)
 910                                 goto len_error ;
 911                         to[0] = 0 ;
 912                         to[1] = 0 ;
 913 #ifdef  LITTLE_ENDIAN
 914                         if (c == 'r') {
 915                                 to[2] = *from++ ;
 916                                 to[3] = *from++ ;
 917                         }
 918                         else {
 919                                 to[3] = *from++ ;
 920                                 to[2] = *from++ ;
 921                         }
 922 #else
 923                         to[2] = *from++ ;
 924                         to[3] = *from++ ;
 925 #endif
 926                         to += 4 ;
 927                         len -= 4 ;
 928                         break ;
 929                 case 'I' :              /* for SET of port indexes */
 930                         if (len < 2)
 931                                 goto len_error ;
 932 #ifdef  LITTLE_ENDIAN
 933                         to[1] = *from++ ;
 934                         to[0] = *from++ ;
 935 #else
 936                         to[0] = *from++ ;
 937                         to[1] = *from++ ;
 938 #endif
 939                         to += 2 ;
 940                         len -= 2 ;
 941                         break ;
 942                 case 'F' :
 943                 case 'B' :
 944                         if (len < 4)
 945                                 goto len_error ;
 946                         len -= 4 ;
 947                         to[0] = 0 ;
 948                         to[1] = 0 ;
 949                         to[2] = 0 ;
 950                         to[3] = *from++ ;
 951                         to += 4 ;
 952                         break ;
 953                 case 'C' :
 954                 case 'T' :
 955                 case 'L' :
 956                         if (len < 4)
 957                                 goto len_error ;
 958 #ifdef  LITTLE_ENDIAN
 959                         to[3] = *from++ ;
 960                         to[2] = *from++ ;
 961                         to[1] = *from++ ;
 962                         to[0] = *from++ ;
 963 #else
 964                         to[0] = *from++ ;
 965                         to[1] = *from++ ;
 966                         to[2] = *from++ ;
 967                         to[3] = *from++ ;
 968 #endif
 969                         len -= 4 ;
 970                         to += 4 ;
 971                         break ;
 972                 case '2' :              /* PortMacIndicated */
 973                         if (len < 4)
 974                                 goto len_error ;
 975                         to[0] = 0 ;
 976                         to[1] = 0 ;
 977                         to[2] = *from++ ;
 978                         to[3] = *from++ ;
 979                         len -= 4 ;
 980                         to += 4 ;
 981                         break ;
 982                 case '4' :
 983                         if (len < 4)
 984                                 goto len_error ;
 985                         to[0] = *from++ ;
 986                         to[1] = *from++ ;
 987                         to[2] = *from++ ;
 988                         to[3] = *from++ ;
 989                         len -= 4 ;
 990                         to += 4 ;
 991                         break ;
 992                 case 'A' :
 993                         if (len < 8)
 994                                 goto len_error ;
 995                         to[0] = 0 ;
 996                         to[1] = 0 ;
 997                         memcpy((char *) to+2,(char *) from,6) ;
 998                         to += 8 ;
 999                         from += 8 ;
1000                         len -= 8 ;
1001                         break ;
1002                 case '8' :
1003                         if (len < 8)
1004                                 goto len_error ;
1005                         memcpy((char *) to,(char *) from,8) ;
1006                         to += 8 ;
1007                         from += 8 ;
1008                         len -= 8 ;
1009                         break ;
1010                 case 'D' :
1011                         if (len < 32)
1012                                 goto len_error ;
1013                         memcpy((char *) to,(char *) from,32) ;
1014                         to += 32 ;
1015                         from += 32 ;
1016                         len -= 32 ;
1017                         break ;
1018                 case 'P' :              /* timestamp is NOT swapped */
1019                         if (len < 8)
1020                                 goto len_error ;
1021                         to[0] = *from++ ;
1022                         to[1] = *from++ ;
1023                         to[2] = *from++ ;
1024                         to[3] = *from++ ;
1025                         to[4] = *from++ ;
1026                         to[5] = *from++ ;
1027                         to[6] = *from++ ;
1028                         to[7] = *from++ ;
1029                         to += 8 ;
1030                         len -= 8 ;
1031                         break ;
1032                 default :
1033                         SMT_PANIC(smc,SMT_E0119, SMT_E0119_MSG) ;
1034                         break ;
1035                 }
1036         }
1037
1038 done:
1039         /*
1040          * make it even (in case of 'I' encoding)
1041          * note: len is DECREMENTED
1042          */
1043         if (len & 3) {
1044                 to[0] = 0 ;
1045                 to[1] = 0 ;
1046                 to += 4 - (len & 3 ) ;
1047                 len = len & ~ 3 ;
1048         }
1049
1050         /* set type and length */
1051         pa->p_type = para ;
1052         pa->p_len = plen - len - PARA_LEN ;
1053         /* return values */
1054         pcon->pc_p = (void *) to ;
1055         pcon->pc_len = len ;
1056         return ;
1057
1058 sp_done:
1059         len -= sp_len ;
1060         to += sp_len ;
1061         goto done ;
1062
1063 len_error:
1064         /* parameter does not fit in frame */
1065         pcon->pc_err = SMT_RDF_TOOLONG ;
1066         return ;
1067
1068 wrong_error:
1069         pcon->pc_err = SMT_RDF_LENGTH ;
1070 }
1071
1072 /*
1073  * set parameter
1074  */
1075 static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
1076                         int local, int set)
1077 {
1078 #define IFSET(x)        if (set) (x)
1079
1080         const struct s_p_tab    *pt ;
1081         int             len ;
1082         char            *from ;
1083         char            *to ;
1084         const char      *swap ;
1085         char            c ;
1086         char            *mib_addr ;
1087         struct fddi_mib *mib ;
1088         struct fddi_mib_m       *mib_m = NULL;
1089         struct fddi_mib_a       *mib_a = NULL;
1090         struct fddi_mib_p       *mib_p = NULL;
1091         int             mac ;
1092         int             path ;
1093         int             port ;
1094         SK_LOC_DECL(u_char,byte_val) ;
1095         SK_LOC_DECL(u_short,word_val) ;
1096         SK_LOC_DECL(u_long,long_val) ;
1097
1098         mac = index - INDEX_MAC ;
1099         path = index - INDEX_PATH ;
1100         port = index - INDEX_PORT ;
1101         len = pa->p_len ;
1102         from = (char *) (pa + 1 ) ;
1103
1104         mib = &smc->mib ;
1105         switch (pa->p_type & 0xf000) {
1106         case 0x1000 :
1107         default :
1108                 mib_addr = (char *) mib ;
1109                 break ;
1110         case 0x2000 :
1111                 if (mac < 0 || mac >= NUMMACS) {
1112                         return SMT_RDF_NOPARAM;
1113                 }
1114                 mib_m = &smc->mib.m[mac] ;
1115                 mib_addr = (char *) mib_m ;
1116                 from += 4 ;             /* skip index */
1117                 len -= 4 ;
1118                 break ;
1119         case 0x3000 :
1120                 if (path < 0 || path >= NUMPATHS) {
1121                         return SMT_RDF_NOPARAM;
1122                 }
1123                 mib_a = &smc->mib.a[path] ;
1124                 mib_addr = (char *) mib_a ;
1125                 from += 4 ;             /* skip index */
1126                 len -= 4 ;
1127                 break ;
1128         case 0x4000 :
1129                 if (port < 0 || port >= smt_mib_phys(smc)) {
1130                         return SMT_RDF_NOPARAM;
1131                 }
1132                 mib_p = &smc->mib.p[port_to_mib(smc,port)] ;
1133                 mib_addr = (char *) mib_p ;
1134                 from += 4 ;             /* skip index */
1135                 len -= 4 ;
1136                 break ;
1137         }
1138         switch (pa->p_type) {
1139         case SMT_P10F0 :
1140         case SMT_P10F1 :
1141 #ifdef  ESS
1142         case SMT_P10F2 :
1143         case SMT_P10F3 :
1144         case SMT_P10F4 :
1145         case SMT_P10F5 :
1146         case SMT_P10F6 :
1147         case SMT_P10F7 :
1148 #endif
1149 #ifdef  SBA
1150         case SMT_P10F8 :
1151         case SMT_P10F9 :
1152 #endif
1153         case SMT_P20F1 :
1154                 if (!local)
1155                         return SMT_RDF_NOPARAM;
1156                 break ;
1157         }
1158         pt = smt_get_ptab(pa->p_type) ;
1159         if (!pt)
1160                 return (pa->p_type & 0xff00) ? SMT_RDF_NOPARAM :
1161                                                SMT_RDF_ILLEGAL;
1162         switch (pt->p_access) {
1163         case AC_GR :
1164         case AC_S :
1165                 break ;
1166         default :
1167                 return SMT_RDF_ILLEGAL;
1168         }
1169         to = mib_addr + pt->p_offset ;
1170         swap = pt->p_swap ;             /* pointer to swap string */
1171
1172         while (swap && (c = *swap++)) {
1173                 switch(c) {
1174                 case 'b' :
1175                         to = (char *) &byte_val ;
1176                         break ;
1177                 case 'w' :
1178                         to = (char *) &word_val ;
1179                         break ;
1180                 case 'l' :
1181                         to = (char *) &long_val ;
1182                         break ;
1183                 case 'S' :
1184                 case 'E' :
1185                 case 'R' :
1186                 case 'r' :
1187                         if (len < 4) {
1188                                 goto len_error ;
1189                         }
1190                         if (from[0] | from[1])
1191                                 goto val_error ;
1192 #ifdef  LITTLE_ENDIAN
1193                         if (c == 'r') {
1194                                 to[0] = from[2] ;
1195                                 to[1] = from[3] ;
1196                         }
1197                         else {
1198                                 to[1] = from[2] ;
1199                                 to[0] = from[3] ;
1200                         }
1201 #else
1202                         to[0] = from[2] ;
1203                         to[1] = from[3] ;
1204 #endif
1205                         from += 4 ;
1206                         to += 2 ;
1207                         len -= 4 ;
1208                         break ;
1209                 case 'F' :
1210                 case 'B' :
1211                         if (len < 4) {
1212                                 goto len_error ;
1213                         }
1214                         if (from[0] | from[1] | from[2])
1215                                 goto val_error ;
1216                         to[0] = from[3] ;
1217                         len -= 4 ;
1218                         from += 4 ;
1219                         to += 4 ;
1220                         break ;
1221                 case 'C' :
1222                 case 'T' :
1223                 case 'L' :
1224                         if (len < 4) {
1225                                 goto len_error ;
1226                         }
1227 #ifdef  LITTLE_ENDIAN
1228                         to[3] = *from++ ;
1229                         to[2] = *from++ ;
1230                         to[1] = *from++ ;
1231                         to[0] = *from++ ;
1232 #else
1233                         to[0] = *from++ ;
1234                         to[1] = *from++ ;
1235                         to[2] = *from++ ;
1236                         to[3] = *from++ ;
1237 #endif
1238                         len -= 4 ;
1239                         to += 4 ;
1240                         break ;
1241                 case 'A' :
1242                         if (len < 8)
1243                                 goto len_error ;
1244                         if (set)
1245                                 memcpy(to,from+2,6) ;
1246                         to += 8 ;
1247                         from += 8 ;
1248                         len -= 8 ;
1249                         break ;
1250                 case '4' :
1251                         if (len < 4)
1252                                 goto len_error ;
1253                         if (set)
1254                                 memcpy(to,from,4) ;
1255                         to += 4 ;
1256                         from += 4 ;
1257                         len -= 4 ;
1258                         break ;
1259                 case '8' :
1260                         if (len < 8)
1261                                 goto len_error ;
1262                         if (set)
1263                                 memcpy(to,from,8) ;
1264                         to += 8 ;
1265                         from += 8 ;
1266                         len -= 8 ;
1267                         break ;
1268                 case 'D' :
1269                         if (len < 32)
1270                                 goto len_error ;
1271                         if (set)
1272                                 memcpy(to,from,32) ;
1273                         to += 32 ;
1274                         from += 32 ;
1275                         len -= 32 ;
1276                         break ;
1277                 case 'P' :              /* timestamp is NOT swapped */
1278                         if (set) {
1279                                 to[0] = *from++ ;
1280                                 to[1] = *from++ ;
1281                                 to[2] = *from++ ;
1282                                 to[3] = *from++ ;
1283                                 to[4] = *from++ ;
1284                                 to[5] = *from++ ;
1285                                 to[6] = *from++ ;
1286                                 to[7] = *from++ ;
1287                         }
1288                         to += 8 ;
1289                         len -= 8 ;
1290                         break ;
1291                 default :
1292                         SMT_PANIC(smc,SMT_E0120, SMT_E0120_MSG) ;
1293                         return SMT_RDF_ILLEGAL;
1294                 }
1295         }
1296         /*
1297          * actions and internal updates
1298          */
1299         switch (pa->p_type) {
1300         case SMT_P101A:                 /* fddiSMTConfigPolicy */
1301                 if (word_val & ~1)
1302                         goto val_error ;
1303                 IFSET(mib->fddiSMTConfigPolicy = word_val) ;
1304                 break ;
1305         case SMT_P101B :                /* fddiSMTConnectionPolicy */
1306                 if (!(word_val & POLICY_MM))
1307                         goto val_error ;
1308                 IFSET(mib->fddiSMTConnectionPolicy = word_val) ;
1309                 break ;
1310         case SMT_P101D :                /* fddiSMTTT_Notify */
1311                 if (word_val < 2 || word_val > 30)
1312                         goto val_error ;
1313                 IFSET(mib->fddiSMTTT_Notify = word_val) ;
1314                 break ;
1315         case SMT_P101E :                /* fddiSMTStatRptPolicy */
1316                 if (byte_val & ~1)
1317                         goto val_error ;
1318                 IFSET(mib->fddiSMTStatRptPolicy = byte_val) ;
1319                 break ;
1320         case SMT_P101F :                /* fddiSMTTrace_MaxExpiration */
1321                 /*
1322                  * note: lower limit trace_max = 6.001773... s
1323                  * NO upper limit
1324                  */
1325                 if (long_val < (long)0x478bf51L)
1326                         goto val_error ;
1327                 IFSET(mib->fddiSMTTrace_MaxExpiration = long_val) ;
1328                 break ;
1329 #ifdef  ESS
1330         case SMT_P10F2 :                /* fddiESSPayload */
1331                 if (long_val > 1562)
1332                         goto val_error ;
1333                 if (set && smc->mib.fddiESSPayload != long_val) {
1334                         smc->ess.raf_act_timer_poll = TRUE ;
1335                         smc->mib.fddiESSPayload = long_val ;
1336                 }
1337                 break ;
1338         case SMT_P10F3 :                /* fddiESSOverhead */
1339                 if (long_val < 50 || long_val > 5000)
1340                         goto val_error ;
1341                 if (set && smc->mib.fddiESSPayload &&
1342                         smc->mib.fddiESSOverhead != long_val) {
1343                         smc->ess.raf_act_timer_poll = TRUE ;
1344                         smc->mib.fddiESSOverhead = long_val ;
1345                 }
1346                 break ;
1347         case SMT_P10F4 :                /* fddiESSMaxTNeg */
1348                 if (long_val > -MS2BCLK(5) || long_val < -MS2BCLK(165))
1349                         goto val_error ;
1350                 IFSET(mib->fddiESSMaxTNeg = long_val) ;
1351                 break ;
1352         case SMT_P10F5 :                /* fddiESSMinSegmentSize */
1353                 if (long_val < 1 || long_val > 4478)
1354                         goto val_error ;
1355                 IFSET(mib->fddiESSMinSegmentSize = long_val) ;
1356                 break ;
1357         case SMT_P10F6 :                /* fddiESSCategory */
1358                 if ((long_val & 0xffff) != 1)
1359                         goto val_error ;
1360                 IFSET(mib->fddiESSCategory = long_val) ;
1361                 break ;
1362         case SMT_P10F7 :                /* fddiESSSyncTxMode */
1363                 if (word_val > 1)
1364                         goto val_error ;
1365                 IFSET(mib->fddiESSSynchTxMode = word_val) ;
1366                 break ;
1367 #endif
1368 #ifdef  SBA
1369         case SMT_P10F8 :                /* fddiSBACommand */
1370                 if (byte_val != SB_STOP && byte_val != SB_START)
1371                         goto val_error ;
1372                 IFSET(mib->fddiSBACommand = byte_val) ;
1373                 break ;
1374         case SMT_P10F9 :                /* fddiSBAAvailable */
1375                 if (byte_val > 100)
1376                         goto val_error ;
1377                 IFSET(mib->fddiSBAAvailable = byte_val) ;
1378                 break ;
1379 #endif
1380         case SMT_P2020 :                /* fddiMACRequestedPaths */
1381                 if ((word_val & (MIB_P_PATH_PRIM_PREFER |
1382                         MIB_P_PATH_PRIM_ALTER)) == 0 )
1383                         goto val_error ;
1384                 IFSET(mib_m->fddiMACRequestedPaths = word_val) ;
1385                 break ;
1386         case SMT_P205F :                /* fddiMACFrameErrorThreshold */
1387                 /* 0 .. ffff acceptable */
1388                 IFSET(mib_m->fddiMACFrameErrorThreshold = word_val) ;
1389                 break ;
1390         case SMT_P2067 :                /* fddiMACNotCopiedThreshold */
1391                 /* 0 .. ffff acceptable */
1392                 IFSET(mib_m->fddiMACNotCopiedThreshold = word_val) ;
1393                 break ;
1394         case SMT_P2076:                 /* fddiMACMA_UnitdataEnable */
1395                 if (byte_val & ~1)
1396                         goto val_error ;
1397                 if (set) {
1398                         mib_m->fddiMACMA_UnitdataEnable = byte_val ;
1399                         queue_event(smc,EVENT_RMT,RM_ENABLE_FLAG) ;
1400                 }
1401                 break ;
1402         case SMT_P20F1 :                /* fddiMACT_Min */
1403                 IFSET(mib_m->fddiMACT_Min = long_val) ;
1404                 break ;
1405         case SMT_P320F :
1406                 if (long_val > 1562)
1407                         goto val_error ;
1408                 IFSET(mib_a->fddiPATHSbaPayload = long_val) ;
1409 #ifdef  ESS
1410                 if (set)
1411                         ess_para_change(smc) ;
1412 #endif
1413                 break ;
1414         case SMT_P3210 :
1415                 if (long_val > 5000)
1416                         goto val_error ;
1417
1418                 if (long_val != 0 && mib_a->fddiPATHSbaPayload == 0)
1419                         goto val_error ;
1420
1421                 IFSET(mib_a->fddiPATHSbaOverhead = long_val) ;
1422 #ifdef  ESS
1423                 if (set)
1424                         ess_para_change(smc) ;
1425 #endif
1426                 break ;
1427         case SMT_P3213:                 /* fddiPATHT_Rmode */
1428                 /* no limit :
1429                  * 0 .. 343.597 => 0 .. 2e32 * 80nS
1430                  */
1431                 if (set) {
1432                         mib_a->fddiPATHT_Rmode = long_val ;
1433                         rtm_set_timer(smc) ;
1434                 }
1435                 break ;
1436         case SMT_P3214 :                /* fddiPATHSbaAvailable */
1437                 if (long_val > 0x00BEBC20L)
1438                         goto val_error ;
1439 #ifdef SBA
1440                 if (set && mib->fddiSBACommand == SB_STOP)
1441                         goto val_error ;
1442 #endif
1443                 IFSET(mib_a->fddiPATHSbaAvailable = long_val) ;
1444                 break ;
1445         case SMT_P3215 :                /* fddiPATHTVXLowerBound */
1446                 IFSET(mib_a->fddiPATHTVXLowerBound = long_val) ;
1447                 goto change_mac_para ;
1448         case SMT_P3216 :                /* fddiPATHT_MaxLowerBound */
1449                 IFSET(mib_a->fddiPATHT_MaxLowerBound = long_val) ;
1450                 goto change_mac_para ;
1451         case SMT_P3217 :                /* fddiPATHMaxT_Req */
1452                 IFSET(mib_a->fddiPATHMaxT_Req = long_val) ;
1453
1454 change_mac_para:
1455                 if (set && smt_set_mac_opvalues(smc)) {
1456                         RS_SET(smc,RS_EVENT) ;
1457                         smc->sm.please_reconnect = 1 ;
1458                         queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
1459                 }
1460                 break ;
1461         case SMT_P400E :                /* fddiPORTConnectionPolicies */
1462                 if (byte_val > 1)
1463                         goto val_error ;
1464                 IFSET(mib_p->fddiPORTConnectionPolicies = byte_val) ;
1465                 break ;
1466         case SMT_P4011 :                /* fddiPORTRequestedPaths */
1467                 /* all 3*8 bits allowed */
1468                 IFSET(memcpy((char *)mib_p->fddiPORTRequestedPaths,
1469                         (char *)&long_val,4)) ;
1470                 break ;
1471         case SMT_P401F:                 /* fddiPORTMaint_LS */
1472                 if (word_val > 4)
1473                         goto val_error ;
1474                 IFSET(mib_p->fddiPORTMaint_LS = word_val) ;
1475                 break ;
1476         case SMT_P403A :                /* fddiPORTLer_Cutoff */
1477                 if (byte_val < 4 || byte_val > 15)
1478                         goto val_error ;
1479                 IFSET(mib_p->fddiPORTLer_Cutoff = byte_val) ;
1480                 break ;
1481         case SMT_P403B :                /* fddiPORTLer_Alarm */
1482                 if (byte_val < 4 || byte_val > 15)
1483                         goto val_error ;
1484                 IFSET(mib_p->fddiPORTLer_Alarm = byte_val) ;
1485                 break ;
1486
1487         /*
1488          * Actions
1489          */
1490         case SMT_P103C :                /* fddiSMTStationAction */
1491                 if (smt_action(smc,SMT_STATION_ACTION, (int) word_val, 0))
1492                         goto val_error ;
1493                 break ;
1494         case SMT_P4046:                 /* fddiPORTAction */
1495                 if (smt_action(smc,SMT_PORT_ACTION, (int) word_val,
1496                         port_to_mib(smc,port)))
1497                         goto val_error ;
1498                 break ;
1499         default :
1500                 break ;
1501         }
1502         return 0;
1503
1504 val_error:
1505         /* parameter value in frame is out of range */
1506         return SMT_RDF_RANGE;
1507
1508 len_error:
1509         /* parameter value in frame is too short */
1510         return SMT_RDF_LENGTH;
1511
1512 #if     0
1513 no_author_error:
1514         /* parameter not setable, because the SBA is not active
1515          * Please note: we give the return code 'not authorizeed
1516          *  because SBA denied is not a valid return code in the
1517          * PMF protocol.
1518          */
1519         return SMT_RDF_AUTHOR;
1520 #endif
1521 }
1522
1523 static const struct s_p_tab *smt_get_ptab(u_short para)
1524 {
1525         const struct s_p_tab    *pt ;
1526         for (pt = p_tab ; pt->p_num && pt->p_num != para ; pt++)
1527                 ;
1528         return pt->p_num ? pt : NULL;
1529 }
1530
1531 static int smt_mib_phys(struct s_smc *smc)
1532 {
1533 #ifdef  CONCENTRATOR
1534         SK_UNUSED(smc) ;
1535
1536         return NUMPHYS;
1537 #else
1538         if (smc->s.sas == SMT_SAS)
1539                 return 1;
1540         return NUMPHYS;
1541 #endif
1542 }
1543
1544 static int port_to_mib(struct s_smc *smc, int p)
1545 {
1546 #ifdef  CONCENTRATOR
1547         SK_UNUSED(smc) ;
1548
1549         return p;
1550 #else
1551         if (smc->s.sas == SMT_SAS)
1552                 return PS;
1553         return p;
1554 #endif
1555 }
1556
1557
1558 #ifdef  DEBUG
1559 #ifndef BOOT
1560 void dump_smt(struct s_smc *smc, struct smt_header *sm, char *text)
1561 {
1562         int     len ;
1563         struct smt_para *pa ;
1564         char    *c ;
1565         int     n ;
1566         int     nn ;
1567 #ifdef  LITTLE_ENDIAN
1568         int     smtlen ;
1569 #endif
1570
1571         SK_UNUSED(smc) ;
1572
1573 #ifdef  DEBUG_BRD
1574         if (smc->debug.d_smtf < 2)
1575 #else
1576         if (debug.d_smtf < 2)
1577 #endif
1578                 return ;
1579 #ifdef  LITTLE_ENDIAN
1580         smtlen = sm->smt_len + sizeof(struct smt_header) ;
1581 #endif
1582         printf("SMT Frame [%s]:\nDA  ",text) ;
1583         dump_hex((char *) &sm->smt_dest,6) ;
1584         printf("\tSA ") ;
1585         dump_hex((char *) &sm->smt_source,6) ;
1586         printf(" Class %x Type %x Version %x\n",
1587                 sm->smt_class,sm->smt_type,sm->smt_version)  ;
1588         printf("TID %lx\t\tSID ",sm->smt_tid) ;
1589         dump_hex((char *) &sm->smt_sid,8) ;
1590         printf(" LEN %x\n",sm->smt_len) ;
1591
1592         len = sm->smt_len ;
1593         pa = (struct smt_para *) (sm + 1) ;
1594         while (len > 0 ) {
1595                 int     plen ;
1596 #ifdef UNIX
1597                 printf("TYPE %x LEN %x VALUE\t",pa->p_type,pa->p_len) ;
1598 #else
1599                 printf("TYPE %04x LEN %2x VALUE\t",pa->p_type,pa->p_len) ;
1600 #endif
1601                 n = pa->p_len ;
1602                 if ( (n < 0 ) || (n > (int)(len - PARA_LEN))) {
1603                         n = len - PARA_LEN ;
1604                         printf(" BAD LENGTH\n") ;
1605                         break ;
1606                 }
1607 #ifdef  LITTLE_ENDIAN
1608                 smt_swap_para(sm,smtlen,0) ;
1609 #endif
1610                 if (n < 24) {
1611                         dump_hex((char *)(pa+1),(int) n) ;
1612                         printf("\n") ;
1613                 }
1614                 else {
1615                         int     first = 0 ;
1616                         c = (char *)(pa+1) ;
1617                         dump_hex(c,16) ;
1618                         printf("\n") ;
1619                         n -= 16 ;
1620                         c += 16 ;
1621                         while (n > 0) {
1622                                 nn = (n > 16) ? 16 : n ;
1623                                 if (n > 64) {
1624                                         if (first == 0)
1625                                                 printf("\t\t\t...\n") ;
1626                                         first = 1 ;
1627                                 }
1628                                 else {
1629                                         printf("\t\t\t") ;
1630                                         dump_hex(c,nn) ;
1631                                         printf("\n") ;
1632                                 }
1633                                 n -= nn ;
1634                                 c += 16 ;
1635                         }
1636                 }
1637 #ifdef  LITTLE_ENDIAN
1638                 smt_swap_para(sm,smtlen,1) ;
1639 #endif
1640                 plen = (pa->p_len + PARA_LEN + 3) & ~3 ;
1641                 len -= plen ;
1642                 pa = (struct smt_para *)((char *)pa + plen) ;
1643         }
1644         printf("-------------------------------------------------\n\n") ;
1645 }
1646
1647 void dump_hex(char *p, int len)
1648 {
1649         int     n = 0 ;
1650         while (len--) {
1651                 n++ ;
1652 #ifdef UNIX
1653                 printf("%x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
1654 #else
1655                 printf("%02x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
1656 #endif
1657         }
1658 }
1659 #endif  /* no BOOT */
1660 #endif  /* DEBUG */
1661
1662
1663 #endif  /* no SLIM_SMT */