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