drivers/net/fddi/skfp/pmf.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /******************************************************************************
   3  *
   4  *      (C)Copyright 1998,1999 SysKonnect,
   5  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   6  *
   7  *      See the file "skfddi.c" for further information.
   8  *
   9  *      The information in this file is provided "AS IS" without warranty.
  10  *
  11  ******************************************************************************/
  12
  13 /*
  14         Parameter Management Frame processing for SMT 7.2
  15 */
  16
  17 #include "h/types.h"
  18 #include "h/fddi.h"
  19 #include "h/smc.h"
  20 #include "h/smt_p.h"
  21
  22 #define KERNEL
  23 #include "h/smtstate.h"
  24
  25 #ifndef SLIM_SMT
  26
  27 #ifndef lint
  28 static const char ID_sccs[] = "@(#)pmf.c        1.37 97/08/04 (C) SK " ;
  29 #endif
  30
  31 static int smt_authorize(struct s_smc *smc, struct smt_header *sm);
  32 static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm);
  33 static const struct s_p_tab* smt_get_ptab(u_short para);
  34 static int smt_mib_phys(struct s_smc *smc);
  35 static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
  36                         int local, int set);
  37 void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
  38                   int index, int local);
  39 static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
  40                                      int set, int local);
  41 static int port_to_mib(struct s_smc *smc, int p);
  42
  43 #define MOFFSS(e)       offsetof(struct fddi_mib, e)
  44 #define MOFFMS(e)       offsetof(struct fddi_mib_m, e)
  45 #define MOFFAS(e)       offsetof(struct fddi_mib_a, e)
  46 #define MOFFPS(e)       offsetof(struct fddi_mib_p, e)
  47
  48
  49 #define AC_G    0x01            /* Get */
  50 #define AC_GR   0x02            /* Get/Set */
  51 #define AC_S    0x04            /* Set */
  52 #define AC_NA   0x08
  53 #define AC_GROUP        0x10            /* Group */
  54 #define MS2BCLK(x)      ((x)*12500L)
  55 /*
  56         F       LFag (byte)
  57         B       byte
  58         S       u_short 16 bit
  59         C       Counter 32 bit
  60         L       Long 32 bit
  61         T       Timer_2 32 bit
  62         P       TimeStamp ;
  63         A       LongAddress (6 byte)
  64         E       Enum 16 bit
  65         R       ResId 16 Bit
  66 */
  67 static const struct s_p_tab {
  68         u_short p_num ;         /* parameter code */
  69         u_char  p_access ;      /* access rights */
  70         u_short p_offset ;      /* offset in mib */
  71         char    p_swap[3] ;     /* format string */
  72 } p_tab[] = {
  73         /* StationIdGrp */
  74         { SMT_P100A,AC_GROUP    } ,
  75         { SMT_P100B,AC_G,       MOFFSS(fddiSMTStationId),       "8"     } ,
  76         { SMT_P100D,AC_G,       MOFFSS(fddiSMTOpVersionId),     "S"     } ,
  77         { SMT_P100E,AC_G,       MOFFSS(fddiSMTHiVersionId),     "S"     } ,
  78         { SMT_P100F,AC_G,       MOFFSS(fddiSMTLoVersionId),     "S"     } ,
  79         { SMT_P1010,AC_G,       MOFFSS(fddiSMTManufacturerData), "D" } ,
  80         { SMT_P1011,AC_GR,      MOFFSS(fddiSMTUserData),        "D"     } ,
  81         { SMT_P1012,AC_G,       MOFFSS(fddiSMTMIBVersionId),    "S"     } ,
  82
  83         /* StationConfigGrp */
  84         { SMT_P1014,AC_GROUP    } ,
  85         { SMT_P1015,AC_G,       MOFFSS(fddiSMTMac_Ct),          "B"     } ,
  86         { SMT_P1016,AC_G,       MOFFSS(fddiSMTNonMaster_Ct),    "B"     } ,
  87         { SMT_P1017,AC_G,       MOFFSS(fddiSMTMaster_Ct),       "B"     } ,
  88         { SMT_P1018,AC_G,       MOFFSS(fddiSMTAvailablePaths),  "B"     } ,
  89         { SMT_P1019,AC_G,       MOFFSS(fddiSMTConfigCapabilities),"S"   } ,
  90         { SMT_P101A,AC_GR,      MOFFSS(fddiSMTConfigPolicy),    "wS"    } ,
  91         { SMT_P101B,AC_GR,      MOFFSS(fddiSMTConnectionPolicy),"wS"    } ,
  92         { SMT_P101D,AC_GR,      MOFFSS(fddiSMTTT_Notify),       "wS"    } ,
  93         { SMT_P101E,AC_GR,      MOFFSS(fddiSMTStatRptPolicy),   "bB"    } ,
  94         { SMT_P101F,AC_GR,      MOFFSS(fddiSMTTrace_MaxExpiration),"lL" } ,
  95         { SMT_P1020,AC_G,       MOFFSS(fddiSMTPORTIndexes),     "II"    } ,
  96         { SMT_P1021,AC_G,       MOFFSS(fddiSMTMACIndexes),      "I"     } ,
  97         { SMT_P1022,AC_G,       MOFFSS(fddiSMTBypassPresent),   "F"     } ,
  98
  99         /* StatusGrp */
 100         { SMT_P1028,AC_GROUP    } ,
 101         { SMT_P1029,AC_G,       MOFFSS(fddiSMTECMState),        "E"     } ,
 102         { SMT_P102A,AC_G,       MOFFSS(fddiSMTCF_State),        "E"     } ,
 103         { SMT_P102C,AC_G,       MOFFSS(fddiSMTRemoteDisconnectFlag),"F" } ,
 104         { SMT_P102D,AC_G,       MOFFSS(fddiSMTStationStatus),   "E"     } ,
 105         { SMT_P102E,AC_G,       MOFFSS(fddiSMTPeerWrapFlag),    "F"     } ,
 106
 107         /* MIBOperationGrp */
 108         { SMT_P1032,AC_GROUP    } ,
 109         { SMT_P1033,AC_G,       MOFFSS(fddiSMTTimeStamp),"P"            } ,
 110         { SMT_P1034,AC_G,       MOFFSS(fddiSMTTransitionTimeStamp),"P"  } ,
 111         /* NOTE : SMT_P1035 is already swapped ! SMT_P_SETCOUNT */
 112         { SMT_P1035,AC_G,       MOFFSS(fddiSMTSetCount),"4P"            } ,
 113         { SMT_P1036,AC_G,       MOFFSS(fddiSMTLastSetStationId),"8"     } ,
 114
 115         { SMT_P103C,AC_S,       0,                              "wS"    } ,
 116
 117         /*
 118          * PRIVATE EXTENSIONS
 119          * only accessible locally to get/set passwd
 120          */
 121         { SMT_P10F0,AC_GR,      MOFFSS(fddiPRPMFPasswd),        "8"     } ,
 122         { SMT_P10F1,AC_GR,      MOFFSS(fddiPRPMFStation),       "8"     } ,
 123 #ifdef  ESS
 124         { SMT_P10F2,AC_GR,      MOFFSS(fddiESSPayload),         "lL"    } ,
 125         { SMT_P10F3,AC_GR,      MOFFSS(fddiESSOverhead),        "lL"    } ,
 126         { SMT_P10F4,AC_GR,      MOFFSS(fddiESSMaxTNeg),         "lL"    } ,
 127         { SMT_P10F5,AC_GR,      MOFFSS(fddiESSMinSegmentSize),  "lL"    } ,
 128         { SMT_P10F6,AC_GR,      MOFFSS(fddiESSCategory),        "lL"    } ,
 129         { SMT_P10F7,AC_GR,      MOFFSS(fddiESSSynchTxMode),     "wS"    } ,
 130 #endif
 131 #ifdef  SBA
 132         { SMT_P10F8,AC_GR,      MOFFSS(fddiSBACommand),         "bF"    } ,
 133         { SMT_P10F9,AC_GR,      MOFFSS(fddiSBAAvailable),       "bF"    } ,
 134 #endif
 135         /* MAC Attributes */
 136         { SMT_P200A,AC_GROUP    } ,
 137         { SMT_P200B,AC_G,       MOFFMS(fddiMACFrameStatusFunctions),"S" } ,
 138         { SMT_P200D,AC_G,       MOFFMS(fddiMACT_MaxCapabilitiy),"T"     } ,
 139         { SMT_P200E,AC_G,       MOFFMS(fddiMACTVXCapabilitiy),"T"       } ,
 140
 141         /* ConfigGrp */
 142         { SMT_P2014,AC_GROUP    } ,
 143         { SMT_P2016,AC_G,       MOFFMS(fddiMACAvailablePaths),  "B"     } ,
 144         { SMT_P2017,AC_G,       MOFFMS(fddiMACCurrentPath),     "S"     } ,
 145         { SMT_P2018,AC_G,       MOFFMS(fddiMACUpstreamNbr),     "A"     } ,
 146         { SMT_P2019,AC_G,       MOFFMS(fddiMACDownstreamNbr),   "A"     } ,
 147         { SMT_P201A,AC_G,       MOFFMS(fddiMACOldUpstreamNbr),  "A"     } ,
 148         { SMT_P201B,AC_G,       MOFFMS(fddiMACOldDownstreamNbr),"A"     } ,
 149         { SMT_P201D,AC_G,       MOFFMS(fddiMACDupAddressTest),  "E"     } ,
 150         { SMT_P2020,AC_GR,      MOFFMS(fddiMACRequestedPaths),  "wS"    } ,
 151         { SMT_P2021,AC_G,       MOFFMS(fddiMACDownstreamPORTType),"E"   } ,
 152         { SMT_P2022,AC_G,       MOFFMS(fddiMACIndex),           "S"     } ,
 153
 154         /* AddressGrp */
 155         { SMT_P2028,AC_GROUP    } ,
 156         { SMT_P2029,AC_G,       MOFFMS(fddiMACSMTAddress),      "A"     } ,
 157
 158         /* OperationGrp */
 159         { SMT_P2032,AC_GROUP    } ,
 160         { SMT_P2033,AC_G,       MOFFMS(fddiMACT_Req),           "T"     } ,
 161         { SMT_P2034,AC_G,       MOFFMS(fddiMACT_Neg),           "T"     } ,
 162         { SMT_P2035,AC_G,       MOFFMS(fddiMACT_Max),           "T"     } ,
 163         { SMT_P2036,AC_G,       MOFFMS(fddiMACTvxValue),        "T"     } ,
 164         { SMT_P2038,AC_G,       MOFFMS(fddiMACT_Pri0),          "T"     } ,
 165         { SMT_P2039,AC_G,       MOFFMS(fddiMACT_Pri1),          "T"     } ,
 166         { SMT_P203A,AC_G,       MOFFMS(fddiMACT_Pri2),          "T"     } ,
 167         { SMT_P203B,AC_G,       MOFFMS(fddiMACT_Pri3),          "T"     } ,
 168         { SMT_P203C,AC_G,       MOFFMS(fddiMACT_Pri4),          "T"     } ,
 169         { SMT_P203D,AC_G,       MOFFMS(fddiMACT_Pri5),          "T"     } ,
 170         { SMT_P203E,AC_G,       MOFFMS(fddiMACT_Pri6),          "T"     } ,
 171
 172
 173         /* CountersGrp */
 174         { SMT_P2046,AC_GROUP    } ,
 175         { SMT_P2047,AC_G,       MOFFMS(fddiMACFrame_Ct),        "C"     } ,
 176         { SMT_P2048,AC_G,       MOFFMS(fddiMACCopied_Ct),       "C"     } ,
 177         { SMT_P2049,AC_G,       MOFFMS(fddiMACTransmit_Ct),     "C"     } ,
 178         { SMT_P204A,AC_G,       MOFFMS(fddiMACToken_Ct),        "C"     } ,
 179         { SMT_P2051,AC_G,       MOFFMS(fddiMACError_Ct),        "C"     } ,
 180         { SMT_P2052,AC_G,       MOFFMS(fddiMACLost_Ct),         "C"     } ,
 181         { SMT_P2053,AC_G,       MOFFMS(fddiMACTvxExpired_Ct),   "C"     } ,
 182         { SMT_P2054,AC_G,       MOFFMS(fddiMACNotCopied_Ct),    "C"     } ,
 183         { SMT_P2056,AC_G,       MOFFMS(fddiMACRingOp_Ct),       "C"     } ,
 184
 185         /* FrameErrorConditionGrp */
 186         { SMT_P205A,AC_GROUP    } ,
 187         { SMT_P205F,AC_GR,      MOFFMS(fddiMACFrameErrorThreshold),"wS" } ,
 188         { SMT_P2060,AC_G,       MOFFMS(fddiMACFrameErrorRatio), "S"     } ,
 189
 190         /* NotCopiedConditionGrp */
 191         { SMT_P2064,AC_GROUP    } ,
 192         { SMT_P2067,AC_GR,      MOFFMS(fddiMACNotCopiedThreshold),"wS"  } ,
 193         { SMT_P2069,AC_G,       MOFFMS(fddiMACNotCopiedRatio),  "S"     } ,
 194
 195         /* StatusGrp */
 196         { SMT_P206E,AC_GROUP    } ,
 197         { SMT_P206F,AC_G,       MOFFMS(fddiMACRMTState),        "S"     } ,
 198         { SMT_P2070,AC_G,       MOFFMS(fddiMACDA_Flag), "F"     } ,
 199         { SMT_P2071,AC_G,       MOFFMS(fddiMACUNDA_Flag),       "F"     } ,
 200         { SMT_P2072,AC_G,       MOFFMS(fddiMACFrameErrorFlag),  "F"     } ,
 201         { SMT_P2073,AC_G,       MOFFMS(fddiMACNotCopiedFlag),   "F"     } ,
 202         { SMT_P2074,AC_G,       MOFFMS(fddiMACMA_UnitdataAvailable),"F" } ,
 203         { SMT_P2075,AC_G,       MOFFMS(fddiMACHardwarePresent), "F"     } ,
 204         { SMT_P2076,AC_GR,      MOFFMS(fddiMACMA_UnitdataEnable),"bF"   } ,
 205
 206         /*
 207          * PRIVATE EXTENSIONS
 208          * only accessible locally to get/set TMIN
 209          */
 210         { SMT_P20F0,AC_NA                                               } ,
 211         { SMT_P20F1,AC_GR,      MOFFMS(fddiMACT_Min),           "lT"    } ,
 212
 213         /* Path Attributes */
 214         /*
 215          * DON't swap 320B,320F,3210: they are already swapped in swap_para()
 216          */
 217         { SMT_P320A,AC_GROUP    } ,
 218         { SMT_P320B,AC_G,       MOFFAS(fddiPATHIndex),          "r"     } ,
 219         { SMT_P320F,AC_GR,      MOFFAS(fddiPATHSbaPayload),     "l4"    } ,
 220         { SMT_P3210,AC_GR,      MOFFAS(fddiPATHSbaOverhead),    "l4"    } ,
 221         /* fddiPATHConfiguration */
 222         { SMT_P3212,AC_G,       0,                              ""      } ,
 223         { SMT_P3213,AC_GR,      MOFFAS(fddiPATHT_Rmode),        "lT"    } ,
 224         { SMT_P3214,AC_GR,      MOFFAS(fddiPATHSbaAvailable),   "lL"    } ,
 225         { SMT_P3215,AC_GR,      MOFFAS(fddiPATHTVXLowerBound),  "lT"    } ,
 226         { SMT_P3216,AC_GR,      MOFFAS(fddiPATHT_MaxLowerBound),"lT"    } ,
 227         { SMT_P3217,AC_GR,      MOFFAS(fddiPATHMaxT_Req),       "lT"    } ,
 228
 229         /* Port Attributes */
 230         /* ConfigGrp */
 231         { SMT_P400A,AC_GROUP    } ,
 232         { SMT_P400C,AC_G,       MOFFPS(fddiPORTMy_Type),        "E"     } ,
 233         { SMT_P400D,AC_G,       MOFFPS(fddiPORTNeighborType),   "E"     } ,
 234         { SMT_P400E,AC_GR,      MOFFPS(fddiPORTConnectionPolicies),"bB" } ,
 235         { SMT_P400F,AC_G,       MOFFPS(fddiPORTMacIndicated),   "2"     } ,
 236         { SMT_P4010,AC_G,       MOFFPS(fddiPORTCurrentPath),    "E"     } ,
 237         { SMT_P4011,AC_GR,      MOFFPS(fddiPORTRequestedPaths), "l4"    } ,
 238         { SMT_P4012,AC_G,       MOFFPS(fddiPORTMACPlacement),   "S"     } ,
 239         { SMT_P4013,AC_G,       MOFFPS(fddiPORTAvailablePaths), "B"     } ,
 240         { SMT_P4016,AC_G,       MOFFPS(fddiPORTPMDClass),       "E"     } ,
 241         { SMT_P4017,AC_G,       MOFFPS(fddiPORTConnectionCapabilities), "B"} ,
 242         { SMT_P401D,AC_G,       MOFFPS(fddiPORTIndex),          "R"     } ,
 243
 244         /* OperationGrp */
 245         { SMT_P401E,AC_GROUP    } ,
 246         { SMT_P401F,AC_GR,      MOFFPS(fddiPORTMaint_LS),       "wE"    } ,
 247         { SMT_P4021,AC_G,       MOFFPS(fddiPORTBS_Flag),        "F"     } ,
 248         { SMT_P4022,AC_G,       MOFFPS(fddiPORTPC_LS),          "E"     } ,
 249
 250         /* ErrorCtrsGrp */
 251         { SMT_P4028,AC_GROUP    } ,
 252         { SMT_P4029,AC_G,       MOFFPS(fddiPORTEBError_Ct),     "C"     } ,
 253         { SMT_P402A,AC_G,       MOFFPS(fddiPORTLCTFail_Ct),     "C"     } ,
 254
 255         /* LerGrp */
 256         { SMT_P4032,AC_GROUP    } ,
 257         { SMT_P4033,AC_G,       MOFFPS(fddiPORTLer_Estimate),   "F"     } ,
 258         { SMT_P4034,AC_G,       MOFFPS(fddiPORTLem_Reject_Ct),  "C"     } ,
 259         { SMT_P4035,AC_G,       MOFFPS(fddiPORTLem_Ct),         "C"     } ,
 260         { SMT_P403A,AC_GR,      MOFFPS(fddiPORTLer_Cutoff),     "bB"    } ,
 261         { SMT_P403B,AC_GR,      MOFFPS(fddiPORTLer_Alarm),      "bB"    } ,
 262
 263         /* StatusGrp */
 264         { SMT_P403C,AC_GROUP    } ,
 265         { SMT_P403D,AC_G,       MOFFPS(fddiPORTConnectState),   "E"     } ,
 266         { SMT_P403E,AC_G,       MOFFPS(fddiPORTPCMStateX),      "E"     } ,
 267         { SMT_P403F,AC_G,       MOFFPS(fddiPORTPC_Withhold),    "E"     } ,
 268         { SMT_P4040,AC_G,       MOFFPS(fddiPORTLerFlag),        "F"     } ,
 269         { SMT_P4041,AC_G,       MOFFPS(fddiPORTHardwarePresent),"F"     } ,
 270
 271         { SMT_P4046,AC_S,       0,                              "wS"    } ,
 272
 273         { 0,    AC_GROUP        } ,
 274         { 0 }
 275 } ;
 276
 277 void smt_pmf_received_pack(struct s_smc *smc, SMbuf *mb, int local)
 278 {
 279         struct smt_header       *sm ;
 280         SMbuf           *reply ;
 281
 282         sm = smtod(mb,struct smt_header *) ;
 283         DB_SMT("SMT: processing PMF frame at %p len %d", sm, mb->sm_len);
 284 #ifdef  DEBUG
 285         dump_smt(smc,sm,"PMF Received") ;
 286 #endif
 287         /*
 288          * Start the watchdog: It may be a long, long packet and
 289          * maybe the watchdog occurs ...
 290          */
 291         smt_start_watchdog(smc) ;
 292
 293         if (sm->smt_class == SMT_PMF_GET ||
 294             sm->smt_class == SMT_PMF_SET) {
 295                 reply = smt_build_pmf_response(smc,sm,
 296                         sm->smt_class == SMT_PMF_SET,local) ;
 297                 if (reply) {
 298                         sm = smtod(reply,struct smt_header *) ;
 299 #ifdef  DEBUG
 300                         dump_smt(smc,sm,"PMF Reply") ;
 301 #endif
 302                         smt_send_frame(smc,reply,FC_SMT_INFO,local) ;
 303                 }
 304         }
 305 }
 306
 307 static SMbuf *smt_build_pmf_response(struct s_smc *smc, struct smt_header *req,
 308                                      int set, int local)
 309 {
 310         SMbuf                   *mb ;
 311         struct smt_header       *smt ;
 312         struct smt_para         *pa ;
 313         struct smt_p_reason     *res ;
 314         const struct s_p_tab    *pt ;
 315         int                     len ;
 316         int                     index ;
 317         int                     idx_end ;
 318         int                     error ;
 319         int                     range ;
 320         SK_LOC_DECL(struct s_pcon,pcon) ;
 321         SK_LOC_DECL(struct s_pcon,set_pcon) ;
 322
 323         /*
 324          * build SMT header
 325          */
 326         if (!(mb = smt_get_mbuf(smc)))
 327                 return mb;
 328
 329         smt = smtod(mb, struct smt_header *) ;
 330         smt->smt_dest = req->smt_source ;       /* DA == source of request */
 331         smt->smt_class = req->smt_class ;       /* same class (GET/SET) */
 332         smt->smt_type = SMT_REPLY ;
 333         smt->smt_version = SMT_VID_2 ;
 334         smt->smt_tid = req->smt_tid ;           /* same TID */
 335         smt->smt_pad = 0 ;
 336         smt->smt_len = 0 ;
 337
 338         /*
 339          * setup parameter status
 340          */
 341         pcon.pc_len = SMT_MAX_INFO_LEN ;        /* max para length */
 342         pcon.pc_err = 0 ;                       /* no error */
 343         pcon.pc_badset = 0 ;                    /* no bad set count */
 344         pcon.pc_p = (void *) (smt + 1) ;        /* paras start here */
 345
 346         /*
 347          * check authoriziation and set count
 348          */
 349         error = 0 ;
 350         if (set) {
 351                 if (!local && smt_authorize(smc,req))
 352                         error = SMT_RDF_AUTHOR ;
 353                 else if (smt_check_set_count(smc,req))
 354                         pcon.pc_badset = SMT_RDF_BADSET ;
 355         }
 356         /*
 357          * add reason code and all mandatory parameters
 358          */
 359         res = (struct smt_p_reason *) pcon.pc_p ;
 360         smt_add_para(smc,&pcon,(u_short) SMT_P_REASON,0,0) ;
 361         smt_add_para(smc,&pcon,(u_short) SMT_P1033,0,0) ;
 362         /* update 1035 and 1036 later if set */
 363         set_pcon = pcon ;
 364         smt_add_para(smc,&pcon,(u_short) SMT_P1035,0,0) ;
 365         smt_add_para(smc,&pcon,(u_short) SMT_P1036,0,0) ;
 366
 367         pcon.pc_err = error ;
 368         len = req->smt_len ;
 369         pa = (struct smt_para *) (req + 1) ;
 370         /*
 371          * process list of paras
 372          */
 373         while (!pcon.pc_err && len > 0 ) {
 374                 if (((u_short)len < pa->p_len + PARA_LEN) || (pa->p_len & 3)) {
 375                         pcon.pc_err = SMT_RDF_LENGTH ;
 376                         break ;
 377                 }
 378
 379                 if (((range = (pa->p_type & 0xf000)) == 0x2000) ||
 380                         range == 0x3000 || range == 0x4000) {
 381                         /*
 382                          * get index for PART,MAC ad PATH group
 383                          */
 384                         index = *((u_char *)pa + PARA_LEN + 3) ;/* index */
 385                         idx_end = index ;
 386                         if (!set && (pa->p_len != 4)) {
 387                                 pcon.pc_err = SMT_RDF_LENGTH ;
 388                                 break ;
 389                         }
 390                         if (!index && !set) {
 391                                 switch (range) {
 392                                 case 0x2000 :
 393                                         index = INDEX_MAC ;
 394                                         idx_end = index - 1 + NUMMACS ;
 395                                         break ;
 396                                 case 0x3000 :
 397                                         index = INDEX_PATH ;
 398                                         idx_end = index - 1 + NUMPATHS ;
 399                                         break ;
 400                                 case 0x4000 :
 401                                         index = INDEX_PORT ;
 402                                         idx_end = index - 1 + NUMPHYS ;
 403 #ifndef CONCENTRATOR
 404                                         if (smc->s.sas == SMT_SAS)
 405                                                 idx_end = INDEX_PORT ;
 406 #endif
 407                                         break ;
 408                                 }
 409                         }
 410                 }
 411                 else {
 412                         /*
 413                          * smt group has no index
 414                          */
 415                         if (!set && (pa->p_len != 0)) {
 416                                 pcon.pc_err = SMT_RDF_LENGTH ;
 417                                 break ;
 418                         }
 419                         index = 0 ;
 420                         idx_end = 0 ;
 421                 }
 422                 while (index <= idx_end) {
 423                         /*
 424                          * if group
 425                          *      add all paras of group
 426                          */
 427                         pt = smt_get_ptab(pa->p_type) ;
 428                         if (pt && pt->p_access == AC_GROUP && !set) {
 429                                 pt++ ;
 430                                 while (pt->p_access == AC_G ||
 431                                         pt->p_access == AC_GR) {
 432                                         smt_add_para(smc,&pcon,pt->p_num,
 433                                                 index,local);
 434                                         pt++ ;
 435                                 }
 436                         }
 437                         /*
 438                          * ignore
 439                          *      AUTHORIZATION in get/set
 440                          *      SET COUNT in set
 441                          */
 442                         else if (pa->p_type != SMT_P_AUTHOR &&
 443                                  (!set || (pa->p_type != SMT_P1035))) {
 444                                 int     st ;
 445                                 if (pcon.pc_badset) {
 446                                         smt_add_para(smc,&pcon,pa->p_type,
 447                                                 index,local) ;
 448                                 }
 449                                 else if (set) {
 450                                         st = smt_set_para(smc,pa,index,local,1);
 451                                         /*
 452                                          * return para even if error
 453                                          */
 454                                         smt_add_para(smc,&pcon,pa->p_type,
 455                                                 index,local) ;
 456                                         pcon.pc_err = st ;
 457                                 }
 458                                 else {
 459                                         if (pt && pt->p_access == AC_S) {
 460                                                 pcon.pc_err =
 461                                                         SMT_RDF_ILLEGAL ;
 462                                         }
 463                                         smt_add_para(smc,&pcon,pa->p_type,
 464                                                 index,local) ;
 465                                 }
 466                         }
 467                         if (pcon.pc_err)
 468                                 break ;
 469                         index++ ;
 470                 }
 471                 len -= pa->p_len + PARA_LEN ;
 472                 pa = (struct smt_para *) ((char *)pa + pa->p_len + PARA_LEN) ;
 473         }
 474         smt->smt_len = SMT_MAX_INFO_LEN - pcon.pc_len ;
 475         mb->sm_len = smt->smt_len + sizeof(struct smt_header) ;
 476
 477         /* update reason code */
 478         res->rdf_reason = pcon.pc_badset ? pcon.pc_badset :
 479                         pcon.pc_err ? pcon.pc_err : SMT_RDF_SUCCESS ;
 480         if (set && (res->rdf_reason == SMT_RDF_SUCCESS)) {
 481                 /*
 482                  * increment set count
 483                  * set time stamp
 484                  * store station id of last set
 485                  */
 486                 smc->mib.fddiSMTSetCount.count++ ;
 487                 smt_set_timestamp(smc,smc->mib.fddiSMTSetCount.timestamp) ;
 488                 smc->mib.fddiSMTLastSetStationId = req->smt_sid ;
 489                 smt_add_para(smc,&set_pcon,(u_short) SMT_P1035,0,0) ;
 490                 smt_add_para(smc,&set_pcon,(u_short) SMT_P1036,0,0) ;
 491         }
 492         return mb;
 493 }
 494
 495 static int smt_authorize(struct s_smc *smc, struct smt_header *sm)
 496 {
 497         struct smt_para *pa ;
 498         int             i ;
 499         char            *p ;
 500
 501         /*
 502          * check source station id if not zero
 503          */
 504         p = (char *) &smc->mib.fddiPRPMFStation ;
 505         for (i = 0 ; i < 8 && !p[i] ; i++)
 506                 ;
 507         if (i != 8) {
 508                 if (memcmp((char *) &sm->smt_sid,
 509                         (char *) &smc->mib.fddiPRPMFStation,8))
 510                         return 1;
 511         }
 512         /*
 513          * check authoriziation parameter if passwd not zero
 514          */
 515         p = (char *) smc->mib.fddiPRPMFPasswd ;
 516         for (i = 0 ; i < 8 && !p[i] ; i++)
 517                 ;
 518         if (i != 8) {
 519                 pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P_AUTHOR) ;
 520                 if (!pa)
 521                         return 1;
 522                 if (pa->p_len != 8)
 523                         return 1;
 524                 if (memcmp((char *)(pa+1),(char *)smc->mib.fddiPRPMFPasswd,8))
 525                         return 1;
 526         }
 527         return 0;
 528 }
 529
 530 static int smt_check_set_count(struct s_smc *smc, struct smt_header *sm)
 531 {
 532         struct smt_para *pa ;
 533         struct smt_p_setcount   *sc ;
 534
 535         pa = (struct smt_para *) sm_to_para(smc,sm,SMT_P1035) ;
 536         if (pa) {
 537                 sc = (struct smt_p_setcount *) pa ;
 538                 if ((smc->mib.fddiSMTSetCount.count != sc->count) ||
 539                         memcmp((char *) smc->mib.fddiSMTSetCount.timestamp,
 540                         (char *)sc->timestamp,8))
 541                         return 1;
 542         }
 543         return 0;
 544 }
 545
 546 void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
 547                   int index, int local)
 548 {
 549         struct smt_para *pa ;
 550         const struct s_p_tab    *pt ;
 551         struct fddi_mib_m *mib_m = NULL;
 552         struct fddi_mib_p *mib_p = NULL;
 553         int             len ;
 554         int             plen ;
 555         char            *from ;
 556         char            *to ;
 557         const char      *swap ;
 558         char            c ;
 559         int             range ;
 560         char            *mib_addr ;
 561         int             mac ;
 562         int             path ;
 563         int             port ;
 564         int             sp_len ;
 565
 566         /*
 567          * skip if error
 568          */
 569         if (pcon->pc_err)
 570                 return ;
 571
 572         /*
 573          * actions don't have a value
 574          */
 575         pt = smt_get_ptab(para) ;
 576         if (pt && pt->p_access == AC_S)
 577                 return ;
 578
 579         to = (char *) (pcon->pc_p) ;    /* destination pointer */
 580         len = pcon->pc_len ;            /* free space */
 581         plen = len ;                    /* remember start length */
 582         pa = (struct smt_para *) to ;   /* type/length pointer */
 583         to += PARA_LEN ;                /* skip smt_para */
 584         len -= PARA_LEN ;
 585         /*
 586          * set index if required
 587          */
 588         if (((range = (para & 0xf000)) == 0x2000) ||
 589                 range == 0x3000 || range == 0x4000) {
 590                 if (len < 4)
 591                         goto wrong_error ;
 592                 to[0] = 0 ;
 593                 to[1] = 0 ;
 594                 to[2] = 0 ;
 595                 to[3] = index ;
 596                 len -= 4 ;
 597                 to += 4 ;
 598         }
 599         mac = index - INDEX_MAC ;
 600         path = index - INDEX_PATH ;
 601         port = index - INDEX_PORT ;
 602         /*
 603          * get pointer to mib
 604          */
 605         switch (range) {
 606         case 0x1000 :
 607         default :
 608                 mib_addr = (char *) (&smc->mib) ;
 609                 break ;
 610         case 0x2000 :
 611                 if (mac < 0 || mac >= NUMMACS) {
 612                         pcon->pc_err = SMT_RDF_NOPARAM ;
 613                         return ;
 614                 }
 615                 mib_addr = (char *) (&smc->mib.m[mac]) ;
 616                 mib_m = (struct fddi_mib_m *) mib_addr ;
 617                 break ;
 618         case 0x3000 :
 619                 if (path < 0 || path >= NUMPATHS) {
 620                         pcon->pc_err = SMT_RDF_NOPARAM ;
 621                         return ;
 622                 }
 623                 mib_addr = (char *) (&smc->mib.a[path]) ;
 624                 break ;
 625         case 0x4000 :
 626                 if (port < 0 || port >= smt_mib_phys(smc)) {
 627                         pcon->pc_err = SMT_RDF_NOPARAM ;
 628                         return ;
 629                 }
 630                 mib_addr = (char *) (&smc->mib.p[port_to_mib(smc,port)]) ;
 631                 mib_p = (struct fddi_mib_p *) mib_addr ;
 632                 break ;
 633         }
 634         /*
 635          * check special paras
 636          */
 637         swap = NULL;
 638         switch (para) {
 639         case SMT_P10F0 :
 640         case SMT_P10F1 :
 641 #ifdef  ESS
 642         case SMT_P10F2 :
 643         case SMT_P10F3 :
 644         case SMT_P10F4 :
 645         case SMT_P10F5 :
 646         case SMT_P10F6 :
 647         case SMT_P10F7 :
 648 #endif
 649 #ifdef  SBA
 650         case SMT_P10F8 :
 651         case SMT_P10F9 :
 652 #endif
 653         case SMT_P20F1 :
 654                 if (!local) {
 655                         pcon->pc_err = SMT_RDF_NOPARAM ;
 656                         return ;
 657                 }
 658                 break ;
 659         case SMT_P2034 :
 660         case SMT_P2046 :
 661         case SMT_P2047 :
 662         case SMT_P204A :
 663         case SMT_P2051 :
 664         case SMT_P2052 :
 665                 mac_update_counter(smc) ;
 666                 break ;
 667         case SMT_P4022:
 668                 mib_p->fddiPORTPC_LS = LS2MIB(
 669                         sm_pm_get_ls(smc,port_to_mib(smc,port))) ;
 670                 break ;
 671         case SMT_P_REASON :
 672                 *(u32 *)to = 0 ;
 673                 sp_len = 4 ;
 674                 goto sp_done ;
 675         case SMT_P1033 :                        /* time stamp */
 676                 smt_set_timestamp(smc,smc->mib.fddiSMTTimeStamp) ;
 677                 break ;
 678
 679         case SMT_P1020:                         /* port indexes */
 680 #if     NUMPHYS == 12
 681                 swap = "IIIIIIIIIIII" ;
 682 #else
 683 #if     NUMPHYS == 2
 684                 if (smc->s.sas == SMT_SAS)
 685                         swap = "I" ;
 686                 else
 687                         swap = "II" ;
 688 #else
 689 #if     NUMPHYS == 24
 690                 swap = "IIIIIIIIIIIIIIIIIIIIIIII" ;
 691 #else
 692         ????
 693 #endif
 694 #endif
 695 #endif
 696                 break ;
 697         case SMT_P3212 :
 698                 {
 699                         sp_len = cem_build_path(smc,to,path) ;
 700                         goto sp_done ;
 701                 }
 702         case SMT_P1048 :                /* peer wrap condition */
 703                 {
 704                         struct smt_p_1048       *sp ;
 705                         sp = (struct smt_p_1048 *) to ;
 706                         sp->p1048_flag = smc->mib.fddiSMTPeerWrapFlag ;
 707                         sp->p1048_cf_state = smc->mib.fddiSMTCF_State ;
 708                         sp_len = sizeof(struct smt_p_1048) ;
 709                         goto sp_done ;
 710                 }
 711         case SMT_P208C :
 712                 {
 713                         struct smt_p_208c       *sp ;
 714                         sp = (struct smt_p_208c *) to ;
 715                         sp->p208c_flag =
 716                                 smc->mib.m[MAC0].fddiMACDuplicateAddressCond ;
 717                         sp->p208c_dupcondition =
 718                                 (mib_m->fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0) |
 719                                 (mib_m->fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0);
 720                         sp->p208c_fddilong =
 721                                 mib_m->fddiMACSMTAddress ;
 722                         sp->p208c_fddiunalong =
 723                                 mib_m->fddiMACUpstreamNbr ;
 724                         sp->p208c_pad = 0 ;
 725                         sp_len = sizeof(struct smt_p_208c) ;
 726                         goto sp_done ;
 727                 }
 728         case SMT_P208D :                /* frame error condition */
 729                 {
 730                         struct smt_p_208d       *sp ;
 731                         sp = (struct smt_p_208d *) to ;
 732                         sp->p208d_flag =
 733                                 mib_m->fddiMACFrameErrorFlag ;
 734                         sp->p208d_frame_ct =
 735                                 mib_m->fddiMACFrame_Ct ;
 736                         sp->p208d_error_ct =
 737                                 mib_m->fddiMACError_Ct ;
 738                         sp->p208d_lost_ct =
 739                                 mib_m->fddiMACLost_Ct ;
 740                         sp->p208d_ratio =
 741                                 mib_m->fddiMACFrameErrorRatio ;
 742                         sp_len = sizeof(struct smt_p_208d) ;
 743                         goto sp_done ;
 744                 }
 745         case SMT_P208E :                /* not copied condition */
 746                 {
 747                         struct smt_p_208e       *sp ;
 748                         sp = (struct smt_p_208e *) to ;
 749                         sp->p208e_flag =
 750                                 mib_m->fddiMACNotCopiedFlag ;
 751                         sp->p208e_not_copied =
 752                                 mib_m->fddiMACNotCopied_Ct ;
 753                         sp->p208e_copied =
 754                                 mib_m->fddiMACCopied_Ct ;
 755                         sp->p208e_not_copied_ratio =
 756                                 mib_m->fddiMACNotCopiedRatio ;
 757                         sp_len = sizeof(struct smt_p_208e) ;
 758                         goto sp_done ;
 759                 }
 760         case SMT_P208F :        /* neighbor change event */
 761                 {
 762                         struct smt_p_208f       *sp ;
 763                         sp = (struct smt_p_208f *) to ;
 764                         sp->p208f_multiple =
 765                                 mib_m->fddiMACMultiple_N ;
 766                         sp->p208f_nacondition =
 767                                 mib_m->fddiMACDuplicateAddressCond ;
 768                         sp->p208f_old_una =
 769                                 mib_m->fddiMACOldUpstreamNbr ;
 770                         sp->p208f_new_una =
 771                                 mib_m->fddiMACUpstreamNbr ;
 772                         sp->p208f_old_dna =
 773                                 mib_m->fddiMACOldDownstreamNbr ;
 774                         sp->p208f_new_dna =
 775                                 mib_m->fddiMACDownstreamNbr ;
 776                         sp->p208f_curren_path =
 777                                 mib_m->fddiMACCurrentPath ;
 778                         sp->p208f_smt_address =
 779                                 mib_m->fddiMACSMTAddress ;
 780                         sp_len = sizeof(struct smt_p_208f) ;
 781                         goto sp_done ;
 782                 }
 783         case SMT_P2090 :
 784                 {
 785                         struct smt_p_2090       *sp ;
 786                         sp = (struct smt_p_2090 *) to ;
 787                         sp->p2090_multiple =
 788                                 mib_m->fddiMACMultiple_P ;
 789                         sp->p2090_availablepaths =
 790                                 mib_m->fddiMACAvailablePaths ;
 791                         sp->p2090_currentpath =
 792                                 mib_m->fddiMACCurrentPath ;
 793                         sp->p2090_requestedpaths =
 794                                 mib_m->fddiMACRequestedPaths ;
 795                         sp_len = sizeof(struct smt_p_2090) ;
 796                         goto sp_done ;
 797                 }
 798         case SMT_P4050 :
 799                 {
 800                         struct smt_p_4050       *sp ;
 801                         sp = (struct smt_p_4050 *) to ;
 802                         sp->p4050_flag =
 803                                 mib_p->fddiPORTLerFlag ;
 804                         sp->p4050_pad = 0 ;
 805                         sp->p4050_cutoff =
 806                                 mib_p->fddiPORTLer_Cutoff ;
 807                         sp->p4050_alarm =
 808                                 mib_p->fddiPORTLer_Alarm ;
 809                         sp->p4050_estimate =
 810                                 mib_p->fddiPORTLer_Estimate ;
 811                         sp->p4050_reject_ct =
 812                                 mib_p->fddiPORTLem_Reject_Ct ;
 813                         sp->p4050_ct =
 814                                 mib_p->fddiPORTLem_Ct ;
 815                         sp_len = sizeof(struct smt_p_4050) ;
 816                         goto sp_done ;
 817                 }
 818
 819         case SMT_P4051 :
 820                 {
 821                         struct smt_p_4051       *sp ;
 822                         sp = (struct smt_p_4051 *) to ;
 823                         sp->p4051_multiple =
 824                                 mib_p->fddiPORTMultiple_U ;
 825                         sp->p4051_porttype =
 826                                 mib_p->fddiPORTMy_Type ;
 827                         sp->p4051_connectstate =
 828                                 mib_p->fddiPORTConnectState ;
 829                         sp->p4051_pc_neighbor =
 830                                 mib_p->fddiPORTNeighborType ;
 831                         sp->p4051_pc_withhold =
 832                                 mib_p->fddiPORTPC_Withhold ;
 833                         sp_len = sizeof(struct smt_p_4051) ;
 834                         goto sp_done ;
 835                 }
 836         case SMT_P4052 :
 837                 {
 838                         struct smt_p_4052       *sp ;
 839                         sp = (struct smt_p_4052 *) to ;
 840                         sp->p4052_flag =
 841                                 mib_p->fddiPORTEB_Condition ;
 842                         sp->p4052_eberrorcount =
 843                                 mib_p->fddiPORTEBError_Ct ;
 844                         sp_len = sizeof(struct smt_p_4052) ;
 845                         goto sp_done ;
 846                 }
 847         case SMT_P4053 :
 848                 {
 849                         struct smt_p_4053       *sp ;
 850                         sp = (struct smt_p_4053 *) to ;
 851                         sp->p4053_multiple =
 852                                 mib_p->fddiPORTMultiple_P ;
 853                         sp->p4053_availablepaths =
 854                                 mib_p->fddiPORTAvailablePaths ;
 855                         sp->p4053_currentpath =
 856                                 mib_p->fddiPORTCurrentPath ;
 857                         memcpy( (char *) &sp->p4053_requestedpaths,
 858                                 (char *) mib_p->fddiPORTRequestedPaths,4) ;
 859                         sp->p4053_mytype =
 860                                 mib_p->fddiPORTMy_Type ;
 861                         sp->p4053_neighbortype =
 862                                 mib_p->fddiPORTNeighborType ;
 863                         sp_len = sizeof(struct smt_p_4053) ;
 864                         goto sp_done ;
 865                 }
 866         default :
 867                 break ;
 868         }
 869         /*
 870          * in table ?
 871          */
 872         if (!pt) {
 873                 pcon->pc_err = (para & 0xff00) ? SMT_RDF_NOPARAM :
 874                                                 SMT_RDF_ILLEGAL ;
 875                 return ;
 876         }
 877         /*
 878          * check access rights
 879          */
 880         switch (pt->p_access) {
 881         case AC_G :
 882         case AC_GR :
 883                 break ;
 884         default :
 885                 pcon->pc_err = SMT_RDF_ILLEGAL ;
 886                 return ;
 887         }
 888         from = mib_addr + pt->p_offset ;
 889         if (!swap)
 890                 swap = pt->p_swap ;             /* pointer to swap string */
 891
 892         /*
 893          * copy values
 894          */
 895         while ((c = *swap++)) {
 896                 switch(c) {
 897                 case 'b' :
 898                 case 'w' :
 899                 case 'l' :
 900                         break ;
 901                 case 'S' :
 902                 case 'E' :
 903                 case 'R' :
 904                 case 'r' :
 905                         if (len < 4)
 906                                 goto len_error ;
 907                         to[0] = 0 ;
 908                         to[1] = 0 ;
 909 #ifdef  LITTLE_ENDIAN
 910                         if (c == 'r') {
 911                                 to[2] = *from++ ;
 912                                 to[3] = *from++ ;
 913                         }
 914                         else {
 915                                 to[3] = *from++ ;
 916                                 to[2] = *from++ ;
 917                         }
 918 #else
 919                         to[2] = *from++ ;
 920                         to[3] = *from++ ;
 921 #endif
 922                         to += 4 ;
 923                         len -= 4 ;
 924                         break ;
 925                 case 'I' :              /* for SET of port indexes */
 926                         if (len < 2)
 927                                 goto len_error ;
 928 #ifdef  LITTLE_ENDIAN
 929                         to[1] = *from++ ;
 930                         to[0] = *from++ ;
 931 #else
 932                         to[0] = *from++ ;
 933                         to[1] = *from++ ;
 934 #endif
 935                         to += 2 ;
 936                         len -= 2 ;
 937                         break ;
 938                 case 'F' :
 939                 case 'B' :
 940                         if (len < 4)
 941                                 goto len_error ;
 942                         len -= 4 ;
 943                         to[0] = 0 ;
 944                         to[1] = 0 ;
 945                         to[2] = 0 ;
 946                         to[3] = *from++ ;
 947                         to += 4 ;
 948                         break ;
 949                 case 'C' :
 950                 case 'T' :
 951                 case 'L' :
 952                         if (len < 4)
 953                                 goto len_error ;
 954 #ifdef  LITTLE_ENDIAN
 955                         to[3] = *from++ ;
 956                         to[2] = *from++ ;
 957                         to[1] = *from++ ;
 958                         to[0] = *from++ ;
 959 #else
 960                         to[0] = *from++ ;
 961                         to[1] = *from++ ;
 962                         to[2] = *from++ ;
 963                         to[3] = *from++ ;
 964 #endif
 965                         len -= 4 ;
 966                         to += 4 ;
 967                         break ;
 968                 case '2' :              /* PortMacIndicated */
 969                         if (len < 4)
 970                                 goto len_error ;
 971                         to[0] = 0 ;
 972                         to[1] = 0 ;
 973                         to[2] = *from++ ;
 974                         to[3] = *from++ ;
 975                         len -= 4 ;
 976                         to += 4 ;
 977                         break ;
 978                 case '4' :
 979                         if (len < 4)
 980                                 goto len_error ;
 981                         to[0] = *from++ ;
 982                         to[1] = *from++ ;
 983                         to[2] = *from++ ;
 984                         to[3] = *from++ ;
 985                         len -= 4 ;
 986                         to += 4 ;
 987                         break ;
 988                 case 'A' :
 989                         if (len < 8)
 990                                 goto len_error ;
 991                         to[0] = 0 ;
 992                         to[1] = 0 ;
 993                         memcpy((char *) to+2,(char *) from,6) ;
 994                         to += 8 ;
 995                         from += 8 ;
 996                         len -= 8 ;
 997                         break ;
 998                 case '8' :
 999                         if (len < 8)
1000                                 goto len_error ;
1001                         memcpy((char *) to,(char *) from,8) ;
1002                         to += 8 ;
1003                         from += 8 ;
1004                         len -= 8 ;
1005                         break ;
1006                 case 'D' :
1007                         if (len < 32)
1008                                 goto len_error ;
1009                         memcpy((char *) to,(char *) from,32) ;
1010                         to += 32 ;
1011                         from += 32 ;
1012                         len -= 32 ;
1013                         break ;
1014                 case 'P' :              /* timestamp is NOT swapped */
1015                         if (len < 8)
1016                                 goto len_error ;
1017                         to[0] = *from++ ;
1018                         to[1] = *from++ ;
1019                         to[2] = *from++ ;
1020                         to[3] = *from++ ;
1021                         to[4] = *from++ ;
1022                         to[5] = *from++ ;
1023                         to[6] = *from++ ;
1024                         to[7] = *from++ ;
1025                         to += 8 ;
1026                         len -= 8 ;
1027                         break ;
1028                 default :
1029                         SMT_PANIC(smc,SMT_E0119, SMT_E0119_MSG) ;
1030                         break ;
1031                 }
1032         }
1033
1034 done:
1035         /*
1036          * make it even (in case of 'I' encoding)
1037          * note: len is DECREMENTED
1038          */
1039         if (len & 3) {
1040                 to[0] = 0 ;
1041                 to[1] = 0 ;
1042                 to += 4 - (len & 3 ) ;
1043                 len = len & ~ 3 ;
1044         }
1045
1046         /* set type and length */
1047         pa->p_type = para ;
1048         pa->p_len = plen - len - PARA_LEN ;
1049         /* return values */
1050         pcon->pc_p = (void *) to ;
1051         pcon->pc_len = len ;
1052         return ;
1053
1054 sp_done:
1055         len -= sp_len ;
1056         to += sp_len ;
1057         goto done ;
1058
1059 len_error:
1060         /* parameter does not fit in frame */
1061         pcon->pc_err = SMT_RDF_TOOLONG ;
1062         return ;
1063
1064 wrong_error:
1065         pcon->pc_err = SMT_RDF_LENGTH ;
1066 }
1067
1068 /*
1069  * set parameter
1070  */
1071 static int smt_set_para(struct s_smc *smc, struct smt_para *pa, int index,
1072                         int local, int set)
1073 {
1074 #define IFSET(x)        if (set) (x)
1075
1076         const struct s_p_tab    *pt ;
1077         int             len ;
1078         char            *from ;
1079         char            *to ;
1080         const char      *swap ;
1081         char            c ;
1082         char            *mib_addr ;
1083         struct fddi_mib *mib ;
1084         struct fddi_mib_m       *mib_m = NULL;
1085         struct fddi_mib_a       *mib_a = NULL;
1086         struct fddi_mib_p       *mib_p = NULL;
1087         int             mac ;
1088         int             path ;
1089         int             port ;
1090         SK_LOC_DECL(u_char,byte_val) ;
1091         SK_LOC_DECL(u_short,word_val) ;
1092         SK_LOC_DECL(u_long,long_val) ;
1093
1094         mac = index - INDEX_MAC ;
1095         path = index - INDEX_PATH ;
1096         port = index - INDEX_PORT ;
1097         len = pa->p_len ;
1098         from = (char *) (pa + 1 ) ;
1099
1100         mib = &smc->mib ;
1101         switch (pa->p_type & 0xf000) {
1102         case 0x1000 :
1103         default :
1104                 mib_addr = (char *) mib ;
1105                 break ;
1106         case 0x2000 :
1107                 if (mac < 0 || mac >= NUMMACS) {
1108                         return SMT_RDF_NOPARAM;
1109                 }
1110                 mib_m = &smc->mib.m[mac] ;
1111                 mib_addr = (char *) mib_m ;
1112                 from += 4 ;             /* skip index */
1113                 len -= 4 ;
1114                 break ;
1115         case 0x3000 :
1116                 if (path < 0 || path >= NUMPATHS) {
1117                         return SMT_RDF_NOPARAM;
1118                 }
1119                 mib_a = &smc->mib.a[path] ;
1120                 mib_addr = (char *) mib_a ;
1121                 from += 4 ;             /* skip index */
1122                 len -= 4 ;
1123                 break ;
1124         case 0x4000 :
1125                 if (port < 0 || port >= smt_mib_phys(smc)) {
1126                         return SMT_RDF_NOPARAM;
1127                 }
1128                 mib_p = &smc->mib.p[port_to_mib(smc,port)] ;
1129                 mib_addr = (char *) mib_p ;
1130                 from += 4 ;             /* skip index */
1131                 len -= 4 ;
1132                 break ;
1133         }
1134         switch (pa->p_type) {
1135         case SMT_P10F0 :
1136         case SMT_P10F1 :
1137 #ifdef  ESS
1138         case SMT_P10F2 :
1139         case SMT_P10F3 :
1140         case SMT_P10F4 :
1141         case SMT_P10F5 :
1142         case SMT_P10F6 :
1143         case SMT_P10F7 :
1144 #endif
1145 #ifdef  SBA
1146         case SMT_P10F8 :
1147         case SMT_P10F9 :
1148 #endif
1149         case SMT_P20F1 :
1150                 if (!local)
1151                         return SMT_RDF_NOPARAM;
1152                 break ;
1153         }
1154         pt = smt_get_ptab(pa->p_type) ;
1155         if (!pt)
1156                 return (pa->p_type & 0xff00) ? SMT_RDF_NOPARAM :
1157                                                SMT_RDF_ILLEGAL;
1158         switch (pt->p_access) {
1159         case AC_GR :
1160         case AC_S :
1161                 break ;
1162         default :
1163                 return SMT_RDF_ILLEGAL;
1164         }
1165         to = mib_addr + pt->p_offset ;
1166         swap = pt->p_swap ;             /* pointer to swap string */
1167
1168         while (swap && (c = *swap++)) {
1169                 switch(c) {
1170                 case 'b' :
1171                         to = (char *) &byte_val ;
1172                         break ;
1173                 case 'w' :
1174                         to = (char *) &word_val ;
1175                         break ;
1176                 case 'l' :
1177                         to = (char *) &long_val ;
1178                         break ;
1179                 case 'S' :
1180                 case 'E' :
1181                 case 'R' :
1182                 case 'r' :
1183                         if (len < 4) {
1184                                 goto len_error ;
1185                         }
1186                         if (from[0] | from[1])
1187                                 goto val_error ;
1188 #ifdef  LITTLE_ENDIAN
1189                         if (c == 'r') {
1190                                 to[0] = from[2] ;
1191                                 to[1] = from[3] ;
1192                         }
1193                         else {
1194                                 to[1] = from[2] ;
1195                                 to[0] = from[3] ;
1196                         }
1197 #else
1198                         to[0] = from[2] ;
1199                         to[1] = from[3] ;
1200 #endif
1201                         from += 4 ;
1202                         to += 2 ;
1203                         len -= 4 ;
1204                         break ;
1205                 case 'F' :
1206                 case 'B' :
1207                         if (len < 4) {
1208                                 goto len_error ;
1209                         }
1210                         if (from[0] | from[1] | from[2])
1211                                 goto val_error ;
1212                         to[0] = from[3] ;
1213                         len -= 4 ;
1214                         from += 4 ;
1215                         to += 4 ;
1216                         break ;
1217                 case 'C' :
1218                 case 'T' :
1219                 case 'L' :
1220                         if (len < 4) {
1221                                 goto len_error ;
1222                         }
1223 #ifdef  LITTLE_ENDIAN
1224                         to[3] = *from++ ;
1225                         to[2] = *from++ ;
1226                         to[1] = *from++ ;
1227                         to[0] = *from++ ;
1228 #else
1229                         to[0] = *from++ ;
1230                         to[1] = *from++ ;
1231                         to[2] = *from++ ;
1232                         to[3] = *from++ ;
1233 #endif
1234                         len -= 4 ;
1235                         to += 4 ;
1236                         break ;
1237                 case 'A' :
1238                         if (len < 8)
1239                                 goto len_error ;
1240                         if (set)
1241                                 memcpy(to,from+2,6) ;
1242                         to += 8 ;
1243                         from += 8 ;
1244                         len -= 8 ;
1245                         break ;
1246                 case '4' :
1247                         if (len < 4)
1248                                 goto len_error ;
1249                         if (set)
1250                                 memcpy(to,from,4) ;
1251                         to += 4 ;
1252                         from += 4 ;
1253                         len -= 4 ;
1254                         break ;
1255                 case '8' :
1256                         if (len < 8)
1257                                 goto len_error ;
1258                         if (set)
1259                                 memcpy(to,from,8) ;
1260                         to += 8 ;
1261                         from += 8 ;
1262                         len -= 8 ;
1263                         break ;
1264                 case 'D' :
1265                         if (len < 32)
1266                                 goto len_error ;
1267                         if (set)
1268                                 memcpy(to,from,32) ;
1269                         to += 32 ;
1270                         from += 32 ;
1271                         len -= 32 ;
1272                         break ;
1273                 case 'P' :              /* timestamp is NOT swapped */
1274                         if (set) {
1275                                 to[0] = *from++ ;
1276                                 to[1] = *from++ ;
1277                                 to[2] = *from++ ;
1278                                 to[3] = *from++ ;
1279                                 to[4] = *from++ ;
1280                                 to[5] = *from++ ;
1281                                 to[6] = *from++ ;
1282                                 to[7] = *from++ ;
1283                         }
1284                         to += 8 ;
1285                         len -= 8 ;
1286                         break ;
1287                 default :
1288                         SMT_PANIC(smc,SMT_E0120, SMT_E0120_MSG) ;
1289                         return SMT_RDF_ILLEGAL;
1290                 }
1291         }
1292         /*
1293          * actions and internal updates
1294          */
1295         switch (pa->p_type) {
1296         case SMT_P101A:                 /* fddiSMTConfigPolicy */
1297                 if (word_val & ~1)
1298                         goto val_error ;
1299                 IFSET(mib->fddiSMTConfigPolicy = word_val) ;
1300                 break ;
1301         case SMT_P101B :                /* fddiSMTConnectionPolicy */
1302                 if (!(word_val & POLICY_MM))
1303                         goto val_error ;
1304                 IFSET(mib->fddiSMTConnectionPolicy = word_val) ;
1305                 break ;
1306         case SMT_P101D :                /* fddiSMTTT_Notify */
1307                 if (word_val < 2 || word_val > 30)
1308                         goto val_error ;
1309                 IFSET(mib->fddiSMTTT_Notify = word_val) ;
1310                 break ;
1311         case SMT_P101E :                /* fddiSMTStatRptPolicy */
1312                 if (byte_val & ~1)
1313                         goto val_error ;
1314                 IFSET(mib->fddiSMTStatRptPolicy = byte_val) ;
1315                 break ;
1316         case SMT_P101F :                /* fddiSMTTrace_MaxExpiration */
1317                 /*
1318                  * note: lower limit trace_max = 6.001773... s
1319                  * NO upper limit
1320                  */
1321                 if (long_val < (long)0x478bf51L)
1322                         goto val_error ;
1323                 IFSET(mib->fddiSMTTrace_MaxExpiration = long_val) ;
1324                 break ;
1325 #ifdef  ESS
1326         case SMT_P10F2 :                /* fddiESSPayload */
1327                 if (long_val > 1562)
1328                         goto val_error ;
1329                 if (set && smc->mib.fddiESSPayload != long_val) {
1330                         smc->ess.raf_act_timer_poll = TRUE ;
1331                         smc->mib.fddiESSPayload = long_val ;
1332                 }
1333                 break ;
1334         case SMT_P10F3 :                /* fddiESSOverhead */
1335                 if (long_val < 50 || long_val > 5000)
1336                         goto val_error ;
1337                 if (set && smc->mib.fddiESSPayload &&
1338                         smc->mib.fddiESSOverhead != long_val) {
1339                         smc->ess.raf_act_timer_poll = TRUE ;
1340                         smc->mib.fddiESSOverhead = long_val ;
1341                 }
1342                 break ;
1343         case SMT_P10F4 :                /* fddiESSMaxTNeg */
1344                 if (long_val > -MS2BCLK(5) || long_val < -MS2BCLK(165))
1345                         goto val_error ;
1346                 IFSET(mib->fddiESSMaxTNeg = long_val) ;
1347                 break ;
1348         case SMT_P10F5 :                /* fddiESSMinSegmentSize */
1349                 if (long_val < 1 || long_val > 4478)
1350                         goto val_error ;
1351                 IFSET(mib->fddiESSMinSegmentSize = long_val) ;
1352                 break ;
1353         case SMT_P10F6 :                /* fddiESSCategory */
1354                 if ((long_val & 0xffff) != 1)
1355                         goto val_error ;
1356                 IFSET(mib->fddiESSCategory = long_val) ;
1357                 break ;
1358         case SMT_P10F7 :                /* fddiESSSyncTxMode */
1359                 if (word_val > 1)
1360                         goto val_error ;
1361                 IFSET(mib->fddiESSSynchTxMode = word_val) ;
1362                 break ;
1363 #endif
1364 #ifdef  SBA
1365         case SMT_P10F8 :                /* fddiSBACommand */
1366                 if (byte_val != SB_STOP && byte_val != SB_START)
1367                         goto val_error ;
1368                 IFSET(mib->fddiSBACommand = byte_val) ;
1369                 break ;
1370         case SMT_P10F9 :                /* fddiSBAAvailable */
1371                 if (byte_val > 100)
1372                         goto val_error ;
1373                 IFSET(mib->fddiSBAAvailable = byte_val) ;
1374                 break ;
1375 #endif
1376         case SMT_P2020 :                /* fddiMACRequestedPaths */
1377                 if ((word_val & (MIB_P_PATH_PRIM_PREFER |
1378                         MIB_P_PATH_PRIM_ALTER)) == 0 )
1379                         goto val_error ;
1380                 IFSET(mib_m->fddiMACRequestedPaths = word_val) ;
1381                 break ;
1382         case SMT_P205F :                /* fddiMACFrameErrorThreshold */
1383                 /* 0 .. ffff acceptable */
1384                 IFSET(mib_m->fddiMACFrameErrorThreshold = word_val) ;
1385                 break ;
1386         case SMT_P2067 :                /* fddiMACNotCopiedThreshold */
1387                 /* 0 .. ffff acceptable */
1388                 IFSET(mib_m->fddiMACNotCopiedThreshold = word_val) ;
1389                 break ;
1390         case SMT_P2076:                 /* fddiMACMA_UnitdataEnable */
1391                 if (byte_val & ~1)
1392                         goto val_error ;
1393                 if (set) {
1394                         mib_m->fddiMACMA_UnitdataEnable = byte_val ;
1395                         queue_event(smc,EVENT_RMT,RM_ENABLE_FLAG) ;
1396                 }
1397                 break ;
1398         case SMT_P20F1 :                /* fddiMACT_Min */
1399                 IFSET(mib_m->fddiMACT_Min = long_val) ;
1400                 break ;
1401         case SMT_P320F :
1402                 if (long_val > 1562)
1403                         goto val_error ;
1404                 IFSET(mib_a->fddiPATHSbaPayload = long_val) ;
1405 #ifdef  ESS
1406                 if (set)
1407                         ess_para_change(smc) ;
1408 #endif
1409                 break ;
1410         case SMT_P3210 :
1411                 if (long_val > 5000)
1412                         goto val_error ;
1413
1414                 if (long_val != 0 && mib_a->fddiPATHSbaPayload == 0)
1415                         goto val_error ;
1416
1417                 IFSET(mib_a->fddiPATHSbaOverhead = long_val) ;
1418 #ifdef  ESS
1419                 if (set)
1420                         ess_para_change(smc) ;
1421 #endif
1422                 break ;
1423         case SMT_P3213:                 /* fddiPATHT_Rmode */
1424                 /* no limit :
1425                  * 0 .. 343.597 => 0 .. 2e32 * 80nS
1426                  */
1427                 if (set) {
1428                         mib_a->fddiPATHT_Rmode = long_val ;
1429                         rtm_set_timer(smc) ;
1430                 }
1431                 break ;
1432         case SMT_P3214 :                /* fddiPATHSbaAvailable */
1433                 if (long_val > 0x00BEBC20L)
1434                         goto val_error ;
1435 #ifdef SBA
1436                 if (set && mib->fddiSBACommand == SB_STOP)
1437                         goto val_error ;
1438 #endif
1439                 IFSET(mib_a->fddiPATHSbaAvailable = long_val) ;
1440                 break ;
1441         case SMT_P3215 :                /* fddiPATHTVXLowerBound */
1442                 IFSET(mib_a->fddiPATHTVXLowerBound = long_val) ;
1443                 goto change_mac_para ;
1444         case SMT_P3216 :                /* fddiPATHT_MaxLowerBound */
1445                 IFSET(mib_a->fddiPATHT_MaxLowerBound = long_val) ;
1446                 goto change_mac_para ;
1447         case SMT_P3217 :                /* fddiPATHMaxT_Req */
1448                 IFSET(mib_a->fddiPATHMaxT_Req = long_val) ;
1449
1450 change_mac_para:
1451                 if (set && smt_set_mac_opvalues(smc)) {
1452                         RS_SET(smc,RS_EVENT) ;
1453                         smc->sm.please_reconnect = 1 ;
1454                         queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
1455                 }
1456                 break ;
1457         case SMT_P400E :                /* fddiPORTConnectionPolicies */
1458                 if (byte_val > 1)
1459                         goto val_error ;
1460                 IFSET(mib_p->fddiPORTConnectionPolicies = byte_val) ;
1461                 break ;
1462         case SMT_P4011 :                /* fddiPORTRequestedPaths */
1463                 /* all 3*8 bits allowed */
1464                 IFSET(memcpy((char *)mib_p->fddiPORTRequestedPaths,
1465                         (char *)&long_val,4)) ;
1466                 break ;
1467         case SMT_P401F:                 /* fddiPORTMaint_LS */
1468                 if (word_val > 4)
1469                         goto val_error ;
1470                 IFSET(mib_p->fddiPORTMaint_LS = word_val) ;
1471                 break ;
1472         case SMT_P403A :                /* fddiPORTLer_Cutoff */
1473                 if (byte_val < 4 || byte_val > 15)
1474                         goto val_error ;
1475                 IFSET(mib_p->fddiPORTLer_Cutoff = byte_val) ;
1476                 break ;
1477         case SMT_P403B :                /* fddiPORTLer_Alarm */
1478                 if (byte_val < 4 || byte_val > 15)
1479                         goto val_error ;
1480                 IFSET(mib_p->fddiPORTLer_Alarm = byte_val) ;
1481                 break ;
1482
1483         /*
1484          * Actions
1485          */
1486         case SMT_P103C :                /* fddiSMTStationAction */
1487                 if (smt_action(smc,SMT_STATION_ACTION, (int) word_val, 0))
1488                         goto val_error ;
1489                 break ;
1490         case SMT_P4046:                 /* fddiPORTAction */
1491                 if (smt_action(smc,SMT_PORT_ACTION, (int) word_val,
1492                         port_to_mib(smc,port)))
1493                         goto val_error ;
1494                 break ;
1495         default :
1496                 break ;
1497         }
1498         return 0;
1499
1500 val_error:
1501         /* parameter value in frame is out of range */
1502         return SMT_RDF_RANGE;
1503
1504 len_error:
1505         /* parameter value in frame is too short */
1506         return SMT_RDF_LENGTH;
1507
1508 #if     0
1509 no_author_error:
1510         /* parameter not setable, because the SBA is not active
1511          * Please note: we give the return code 'not authorizeed
1512          *  because SBA denied is not a valid return code in the
1513          * PMF protocol.
1514          */
1515         return SMT_RDF_AUTHOR;
1516 #endif
1517 }
1518
1519 static const struct s_p_tab *smt_get_ptab(u_short para)
1520 {
1521         const struct s_p_tab    *pt ;
1522         for (pt = p_tab ; pt->p_num && pt->p_num != para ; pt++)
1523                 ;
1524         return pt->p_num ? pt : NULL;
1525 }
1526
1527 static int smt_mib_phys(struct s_smc *smc)
1528 {
1529 #ifdef  CONCENTRATOR
1530         SK_UNUSED(smc) ;
1531
1532         return NUMPHYS;
1533 #else
1534         if (smc->s.sas == SMT_SAS)
1535                 return 1;
1536         return NUMPHYS;
1537 #endif
1538 }
1539
1540 static int port_to_mib(struct s_smc *smc, int p)
1541 {
1542 #ifdef  CONCENTRATOR
1543         SK_UNUSED(smc) ;
1544
1545         return p;
1546 #else
1547         if (smc->s.sas == SMT_SAS)
1548                 return PS;
1549         return p;
1550 #endif
1551 }
1552
1553
1554 #ifdef  DEBUG
1555 #ifndef BOOT
1556 void dump_smt(struct s_smc *smc, struct smt_header *sm, char *text)
1557 {
1558         int     len ;
1559         struct smt_para *pa ;
1560         char    *c ;
1561         int     n ;
1562         int     nn ;
1563 #ifdef  LITTLE_ENDIAN
1564         int     smtlen ;
1565 #endif
1566
1567         SK_UNUSED(smc) ;
1568
1569 #ifdef  DEBUG_BRD
1570         if (smc->debug.d_smtf < 2)
1571 #else
1572         if (debug.d_smtf < 2)
1573 #endif
1574                 return ;
1575 #ifdef  LITTLE_ENDIAN
1576         smtlen = sm->smt_len + sizeof(struct smt_header) ;
1577 #endif
1578         printf("SMT Frame [%s]:\nDA  ",text) ;
1579         dump_hex((char *) &sm->smt_dest,6) ;
1580         printf("\tSA ") ;
1581         dump_hex((char *) &sm->smt_source,6) ;
1582         printf(" Class %x Type %x Version %x\n",
1583                 sm->smt_class,sm->smt_type,sm->smt_version)  ;
1584         printf("TID %x\t\tSID ", sm->smt_tid);
1585         dump_hex((char *) &sm->smt_sid,8) ;
1586         printf(" LEN %x\n",sm->smt_len) ;
1587
1588         len = sm->smt_len ;
1589         pa = (struct smt_para *) (sm + 1) ;
1590         while (len > 0 ) {
1591                 int     plen ;
1592 #ifdef UNIX
1593                 printf("TYPE %x LEN %x VALUE\t",pa->p_type,pa->p_len) ;
1594 #else
1595                 printf("TYPE %04x LEN %2x VALUE\t",pa->p_type,pa->p_len) ;
1596 #endif
1597                 n = pa->p_len ;
1598                 if ( (n < 0 ) || (n > (int)(len - PARA_LEN))) {
1599                         n = len - PARA_LEN ;
1600                         printf(" BAD LENGTH\n") ;
1601                         break ;
1602                 }
1603 #ifdef  LITTLE_ENDIAN
1604                 smt_swap_para(sm,smtlen,0) ;
1605 #endif
1606                 if (n < 24) {
1607                         dump_hex((char *)(pa+1),(int) n) ;
1608                         printf("\n") ;
1609                 }
1610                 else {
1611                         int     first = 0 ;
1612                         c = (char *)(pa+1) ;
1613                         dump_hex(c,16) ;
1614                         printf("\n") ;
1615                         n -= 16 ;
1616                         c += 16 ;
1617                         while (n > 0) {
1618                                 nn = (n > 16) ? 16 : n ;
1619                                 if (n > 64) {
1620                                         if (first == 0)
1621                                                 printf("\t\t\t...\n") ;
1622                                         first = 1 ;
1623                                 }
1624                                 else {
1625                                         printf("\t\t\t") ;
1626                                         dump_hex(c,nn) ;
1627                                         printf("\n") ;
1628                                 }
1629                                 n -= nn ;
1630                                 c += 16 ;
1631                         }
1632                 }
1633 #ifdef  LITTLE_ENDIAN
1634                 smt_swap_para(sm,smtlen,1) ;
1635 #endif
1636                 plen = (pa->p_len + PARA_LEN + 3) & ~3 ;
1637                 len -= plen ;
1638                 pa = (struct smt_para *)((char *)pa + plen) ;
1639         }
1640         printf("-------------------------------------------------\n\n") ;
1641 }
1642
1643 void dump_hex(char *p, int len)
1644 {
1645         int     n = 0 ;
1646         while (len--) {
1647                 n++ ;
1648 #ifdef UNIX
1649                 printf("%x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
1650 #else
1651                 printf("%02x%s",*p++ & 0xff,len ? ( (n & 7) ? " " : "-") : "") ;
1652 #endif
1653         }
1654 }
1655 #endif  /* no BOOT */
1656 #endif  /* DEBUG */
1657
1658
1659 #endif  /* no SLIM_SMT */