packet-rsvp.h

   1 /**********************************************************************
   2  *
   3  * packet-rsvp.h
   4  *
   5  * (C) Ashok Narayanan <ashokn@cisco.com>
   6  *
   7  * $Id: packet-rsvp.h,v 1.7 1999/11/18 01:45:02 guy Exp $
   8  *
   9  * For license details, see the COPYING file with this distribution
  10  *
  11  **********************************************************************/
  12
  13 #ifndef PACKET_RSVP_H
  14 #define PACKET_RSVP_H
  15
  16 /*
  17  * RSVP message types
  18  */
  19 typedef enum {
  20     RSVP_MSG_PATH=1, RSVP_MSG_RESV, RSVP_MSG_PERR, RSVP_MSG_RERR,
  21     RSVP_MSG_PTEAR, RSVP_MSG_RTEAR, RSVP_MSG_CONFIRM,
  22     RSVP_MSG_RTEAR_CONFIRM=10
  23 } rsvp_message_types;
  24
  25 static value_string message_type_vals[] = {
  26     {RSVP_MSG_PATH, "PATH Message"},
  27     {RSVP_MSG_RESV, "RESV Message"},
  28     {RSVP_MSG_PERR, "PATH ERROR Message"},
  29     {RSVP_MSG_RERR, "RESV ERROR Message"},
  30     {RSVP_MSG_PTEAR, "PATH TEAR Message"},
  31     {RSVP_MSG_RTEAR, "RESV TEAR Message"},
  32     {RSVP_MSG_CONFIRM, "CONFIRM Message"},
  33     {RSVP_MSG_RTEAR_CONFIRM, "RESV TEAR CONFIRM Message"}
  34 };
  35
  36 /*
  37  * RSVP classes
  38  */
  39 #define MAX_RSVP_CLASS 15
  40
  41 enum rsvp_classes {
  42     RSVP_CLASS_NULL=0,
  43     RSVP_CLASS_SESSION,
  44     RSVP_CLASS_HOP=3,
  45     RSVP_CLASS_INTEGRITY,
  46     RSVP_CLASS_TIME_VALUES,
  47     RSVP_CLASS_ERROR,
  48     RSVP_CLASS_SCOPE,
  49     RSVP_CLASS_STYLE,
  50     RSVP_CLASS_FLOWSPEC,
  51     RSVP_CLASS_FILTER_SPEC,
  52     RSVP_CLASS_SENDER_TEMPLATE,
  53     RSVP_CLASS_SENDER_TSPEC,
  54     RSVP_CLASS_ADSPEC,
  55     RSVP_CLASS_POLICY,
  56     RSVP_CLASS_CONFIRM
  57 };
  58
  59 static value_string rsvp_class_vals[] = {
  60     {RSVP_CLASS_NULL, "NULL object"},
  61     {RSVP_CLASS_SESSION, "SESSION object"},
  62     {RSVP_CLASS_HOP, "HOP object"},
  63     {RSVP_CLASS_INTEGRITY, "INTEGRITY object"},
  64     {RSVP_CLASS_TIME_VALUES, "TIME VALUES object"},
  65     {RSVP_CLASS_ERROR, "ERROR object"},
  66     {RSVP_CLASS_SCOPE, "SCOPE object"},
  67     {RSVP_CLASS_STYLE, "STYLE object"},
  68     {RSVP_CLASS_FLOWSPEC, "FLOWSPEC object"},
  69     {RSVP_CLASS_FILTER_SPEC, "FILTER SPEC object"},
  70     {RSVP_CLASS_SENDER_TEMPLATE, "SENDER TEMPLATE object"},
  71     {RSVP_CLASS_SENDER_TSPEC, "SENDER TSPEC object"},
  72     {RSVP_CLASS_ADSPEC, "ADSPEC object"},
  73     {RSVP_CLASS_POLICY, "POLICY object"},
  74     {RSVP_CLASS_CONFIRM, "CONFIRM object"}
  75 };
  76
  77 /*
  78  * RSVP error values
  79  */
  80 enum rsvp_error_types {
  81     RSVP_ERROR_CONFIRM = 0,
  82     RSVP_ERROR_ADMISSION,
  83     RSVP_ERROR_POLICY,
  84     RSVP_ERROR_NO_PATH,
  85     RSVP_ERROR_NO_SENDER,
  86     RSVP_ERROR_CONFLICT_RESV_STYLE,
  87     RSVP_ERROR_UNKNOWN_RESV_STYLE,
  88     RSVP_ERROR_CONFLICT_DEST_PORTS,
  89     RSVP_ERROR_CONFLICT_SRC_PORTS,
  90     RSVP_ERROR_PREEMPTED=12,
  91     RSVP_ERROR_UNKNOWN_CLASS,
  92     RSVP_ERROR_UNKNOWN_C_TYPE,
  93     RSVP_ERROR_TRAFFIC = 21,
  94     RSVP_ERROR_TRAFFIC_SYSTEM,
  95     RSVP_ERROR_SYSTEM
  96 };
  97
  98 static value_string rsvp_error_vals[] = {
  99     {RSVP_ERROR_CONFIRM, "Confirmation"},
 100     {RSVP_ERROR_ADMISSION, "Admission Control Failure "},
 101     {RSVP_ERROR_POLICY, "Policy Control Failure"},
 102     {RSVP_ERROR_NO_PATH, "No PATH information for this RESV message"},
 103     {RSVP_ERROR_NO_SENDER, "No sender information for this RESV message"},
 104     {RSVP_ERROR_CONFLICT_RESV_STYLE, "Conflicting reservation styles"},
 105     {RSVP_ERROR_UNKNOWN_RESV_STYLE, "Unknown reservation style"},
 106     {RSVP_ERROR_CONFLICT_DEST_PORTS, "Conflicting destination ports"},
 107     {RSVP_ERROR_CONFLICT_SRC_PORTS, "Conflicting source ports"},
 108     {RSVP_ERROR_PREEMPTED, "Service preempted"},
 109     {RSVP_ERROR_UNKNOWN_CLASS, "Unknown object class"},
 110     {RSVP_ERROR_UNKNOWN_C_TYPE, "Unknown object C-type"},
 111     {RSVP_ERROR_TRAFFIC, "Traffic Control Error"},
 112     {RSVP_ERROR_TRAFFIC_SYSTEM, "Traffic Control System Error"}
 113 };
 114
 115 /*
 116  * Defines the reservation style plus style-specific information that
 117  * is not a FLOWSPEC or FILTER_SPEC object, in a RESV message.
 118  */
 119 #define RSVP_DISTINCT (1 << 3)
 120 #define RSVP_SHARED (2 << 3)
 121 #define RSVP_SHARING_MASK (RSVP_DISTINCT | RSVP_SHARED)
 122
 123 #define RSVP_SCOPE_WILD 1
 124 #define RSVP_SCOPE_EXPLICIT 2
 125 #define RSVP_SCOPE_MASK 0x07
 126
 127 #define RSVP_WF (RSVP_SHARED | RSVP_SCOPE_WILD)
 128 #define RSVP_FF (RSVP_DISTINCT | RSVP_SCOPE_EXPLICIT)
 129 #define RSVP_SE (RSVP_SHARED | RSVP_SCOPE_EXPLICIT)
 130
 131 static value_string style_vals[] = {
 132     { RSVP_WF, "Wildcard Filter" },
 133     { RSVP_FF, "Fixed Filter" },
 134     { RSVP_SE, "Shared-Explicit" }
 135 };
 136
 137 /*------------------------------*
 138  * Object definitions
 139  *------------------------------*/
 140
 141 /*
 142  * Base RSVP object
 143  */
 144 typedef struct {
 145     guint16 length;
 146     guint8 class;
 147     guint8 type;
 148     /* Data follows, as a sequence of bytes */
 149 } rsvp_object;
 150
 151 /*
 152  * RSVP message header
 153  */
 154
 155 typedef struct {
 156     guint8    ver_flags;                /* RSVP Version & flags */
 157     guint8    message_type;             /* type of message */
 158     guint16   cksum;                    /* IP Checksum */
 159     guint8    sending_ttl;              /* ttl of message */
 160     guint8    reserved_byte;            /* reserved */
 161     guint16   rsvp_length;              /* length of RSVP data */
 162     /* Objects follow, as a sequence of "rsvp_object"s */
 163 } rsvp_header;
 164
 165 /*
 166  * NULL object
 167 */
 168 typedef struct {
 169     rsvp_object base;
 170 } rsvp_null;
 171
 172 /*
 173  * SESSION object
 174  */
 175 typedef struct {
 176     rsvp_object base;
 177     guint32 destination;
 178     guint8 protocol;
 179     guint8 flags;
 180     guint16 port;
 181 } rsvp_session_ipv4;
 182
 183 typedef struct {
 184     rsvp_object base;
 185     struct e_in6_addr destination;
 186     guint8 protocol;
 187     guint8 flags;
 188     guint16 port;
 189 } rsvp_session_ipv6;
 190
 191 /*
 192  * HOP object
 193  * Can be a PHOP or a NHOP
 194  */
 195 typedef struct {
 196     rsvp_object base;
 197     guint32 neighbor;
 198     guint32 lif_handle;
 199 } rsvp_hop_ipv4;
 200
 201 typedef struct {
 202     rsvp_object base;
 203     struct e_in6_addr neighbor;
 204     guint32 lif_handle;
 205 } rsvp_hop_ipv6;
 206
 207 /*
 208  * TIME_VALUES object
 209  */
 210 typedef struct {
 211     rsvp_object base;
 212     gint32 refresh_ms;
 213 } rsvp_time_values;
 214
 215 /*
 216  * ERROR object
 217  */
 218 typedef struct {
 219     rsvp_object base;
 220     guint32 error_node;
 221     guint8 flags;
 222     guint8 error_code;
 223     guint16 error_value;
 224 } rsvp_error_ipv4;
 225
 226 typedef struct {
 227     rsvp_object base;
 228     struct e_in6_addr error_node;
 229     guint8 flags;
 230     guint8 error_code;
 231     guint16 error_value;
 232 } rsvp_error_ipv6;
 233
 234 /*
 235  * CONFIRM object
 236  */
 237 typedef struct {
 238     rsvp_object base;
 239     guint32 receiver;
 240 } rsvp_confirm_ipv4;
 241
 242 typedef struct {
 243     rsvp_object base;
 244     struct e_in6_addr receiver;
 245 } rsvp_confirm_ipv6;
 246
 247 /*
 248  * SCOPE object
 249  */
 250 typedef struct {
 251     rsvp_object base;
 252     /* Source follows, as a sequence of 32-bit integers */
 253 } rsvp_scope;
 254
 255 /*
 256  * STYLE object
 257  */
 258 typedef struct {
 259     rsvp_object base;
 260     guint32 reservation_type;
 261 } rsvp_style;
 262
 263 /*
 264  * Defines a subset of session data packets that should receive the
 265  * desired QoS (specified by an FLOWSPEC object), in a RESV message.
 266  */
 267 typedef struct {
 268     rsvp_object base;
 269     guint32 source;                     /* source sending data */
 270     guint16 unused;
 271     guint16 udp_source_port;            /* port number */
 272 } rsvp_filter_ipv4;
 273
 274 /*
 275  * Contains a sender IP address and perhaps some additional
 276  * demultiplexing information to identify a sender, in a PATH
 277  * message.
 278  */
 279 typedef struct {
 280     rsvp_object base;
 281     guint32 source;                     /* source sending data */
 282     guint16 __reserved;
 283     guint16 source_port;                /* port number */
 284 } rsvp_template_ipv4;
 285
 286 typedef struct {
 287     rsvp_object base;
 288     struct e_in6_addr source;           /* source sending data */
 289     guint16 __reserved;
 290     guint16 source_port;                /* port number */
 291 } rsvp_template_ipv6;
 292
 293 /*
 294  * Defines a desired QoS, in a RESV message.
 295  */
 296 enum    qos_service_type {
 297     QOS_QUALITATIVE =     128,          /* Qualitative service */
 298     QOS_CONTROLLED_LOAD=    5,          /* Controlled Load Service */
 299     QOS_GUARANTEED =        2,          /* Guaranteed service */
 300     QOS_TSPEC =             1           /* Traffic specification */
 301     };
 302
 303 static value_string qos_vals[] = {
 304     { QOS_QUALITATIVE, "Qualitative QoS" },
 305     { QOS_CONTROLLED_LOAD, "Controlled-load QoS" },
 306     { QOS_GUARANTEED, "Guaranteed rate QoS" },
 307     { QOS_TSPEC, "Traffic specification" },
 308 };
 309
 310 static value_string svc_vals[] = {
 311     { 127, "Token bucket TSpec" },
 312     { 128, "Qualitative TSpec" },
 313     { 130, "Guaranteed-rate RSpec" }
 314 };
 315
 316 enum rsvp_spec_types { INTSRV = 2 };
 317
 318 enum intsrv_services {
 319         INTSRV_GENERAL = 1,
 320         INTSRV_GTD = 2,
 321         INTSRV_CLOAD = 5,
 322         INTSRV_QUALITATIVE = 128
 323 };
 324
 325 static value_string intsrv_services_str[] = {
 326     {INTSRV_GENERAL, "Default General Parameters"},
 327     {INTSRV_GTD, "Guaranteed"},
 328     {INTSRV_CLOAD, "Controlled Load"},
 329     {INTSRV_QUALITATIVE, "Qualitative"},
 330 };
 331
 332 enum intsrv_field_name {
 333         INTSRV_NON_IS_HOPS = 1, INTSRV_COMPOSED_NON_IS_HOPS,
 334         INTSRV_IS_HOPS, INTSRV_COMPOSED_IS_HOPS,
 335         INTSRV_PATH_BANDWIDTH, INTSRV_MIN_PATH_BANDWIDTH,
 336         INTSRV_IF_LATENCY, INTSRV_PATH_LATENCY,
 337         INTSRV_MTU, INTSRV_COMPOSED_MTU,
 338
 339         INTSRV_TOKEN_BUCKET_TSPEC = 127,
 340         INTSRV_QUALITATIVE_TSPEC = 128,
 341         INTSRV_GTD_RSPEC = 130,
 342
 343         INTSRV_DELAY = 131,     /* Gtd Parameter C - Max Delay Bound - bytes */
 344         INTSRV_MAX_JITTER,      /* Gtd Parameter D - Max Jitter */
 345         INTSRV_E2E_DELAY,       /* Gtd Parameter Ctot */
 346         INTSRV_E2E_MAX_JITTER,  /* Gtd Parameter Dtot */
 347         INTSRV_SHP_DELAY,       /* Gtd Parameter Csum */
 348         INTSRV_SHP_MAX_JITTER   /* Gtd Parameter Dsum */
 349 };
 350
 351 /*
 352  * Subobjects for Integrated Services
 353  */
 354
 355 typedef struct {
 356     guint8 service_num;
 357     guint8 break_bit;
 358     guint16 length;
 359 } service_hdr;
 360
 361 typedef struct {
 362     service_hdr svchdr;
 363
 364     guint8      param_id;
 365     guint8      flags_tspec;
 366     guint16     parameter_length;
 367
 368     guint32     rate;
 369     guint32     depth;
 370     guint32     peak;
 371     guint32     min_unit;
 372     guint32     max_unit;
 373 } IS_tspec; /* RFC2210 */
 374
 375 typedef struct {
 376     service_hdr svchdr;
 377
 378     guint8      param_id;
 379     guint8      flags_tspec;
 380     guint16     parameter_length;
 381
 382     guint32     max_unit;
 383 } QUAL_tspec; /* Qualitative */
 384
 385 typedef struct {
 386     rsvp_object base;
 387     guint8      version;
 388     guint8      __reserved_;
 389     guint16     length_in_words;
 390
 391     /* Data follows, as a sequence of bytes */
 392 } rsvp_tspec;
 393
 394 typedef struct {
 395     guint8      param_id;
 396     guint8      flags_rspec;
 397     guint16     param2_length;
 398     guint32     requested_rate;
 399     guint32     slack;
 400 } IS_rspec;
 401
 402 typedef struct {
 403     IS_tspec tspec;
 404     IS_rspec rspec;
 405 } IS_flowspec; /* RFC 2210 */
 406
 407 typedef struct {
 408     service_hdr svchdr;
 409
 410     guint8      param_id;
 411     guint8      flags_tspec;
 412     guint16     parameter_length;
 413
 414     guint32     max_unit;
 415 } QUAL_flowspec; /* Qualitative */
 416
 417
 418 typedef struct {
 419     rsvp_object base;
 420     guint8      version;
 421     guint8      __reserved_;
 422     guint16     length_in_words;
 423
 424     /* Data follows, as a sequence of bytes */
 425 } rsvp_flowspec;
 426
 427
 428 typedef struct {
 429     guint8 id;
 430     guint8 flags;
 431     guint16 length;
 432     guint32 dataval;
 433 } param_hdr;
 434
 435 static value_string adspec_params[] = {
 436     {4, "IS Hop Count"},
 437     {6, "Path b/w estimate"},
 438     {8, "Minimum path latency"},
 439     {10, "Composed MTU"},
 440     {133, "End-to-end composed value for C"},
 441     {134, "End-to-end composed value for D"},
 442     {135, "Since-last-reshaping point composed C"},
 443     {136, "Since-last-reshaping point composed D"},
 444 };
 445
 446
 447
 448 #endif