Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 1 | # Copyright 2013, Big Switch Networks, Inc. |
| 2 | # |
| 3 | # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with |
| 4 | # the following special exception: |
| 5 | # |
| 6 | # LOXI Exception |
| 7 | # |
| 8 | # As a special exception to the terms of the EPL, you may distribute libraries |
| 9 | # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided |
| 10 | # that copyright and licensing notices generated by LoxiGen are not altered or removed |
| 11 | # from the LoxiGen Libraries and the notice provided below is (i) included in |
| 12 | # the LoxiGen Libraries, if distributed in source code form and (ii) included in any |
| 13 | # documentation for the LoxiGen Libraries, if distributed in binary form. |
| 14 | # |
| 15 | # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler." |
| 16 | # |
| 17 | # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain |
| 18 | # a copy of the EPL at: |
| 19 | # |
| 20 | # http://www.eclipse.org/legal/epl-v10.html |
| 21 | # |
| 22 | # Unless required by applicable law or agreed to in writing, software |
| 23 | # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 24 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 25 | # EPL for the specific language governing permissions and limitations |
| 26 | # under the EPL. |
| 27 | |
| 28 | ## |
| 29 | # @brief C code generation for LOXI type related maps |
| 30 | # |
| 31 | |
Andreas Wundsam | 76db006 | 2013-11-15 13:34:41 -0800 | [diff] [blame] | 32 | import c_gen.of_g_legacy as of_g |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 33 | import sys |
| 34 | from generic_utils import * |
Andreas Wundsam | 542a13c | 2013-11-15 13:28:55 -0800 | [diff] [blame] | 35 | import c_gen.type_maps as type_maps |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 36 | |
| 37 | |
| 38 | # Some number larger than small type values, but less then |
| 39 | # reserved values like 0xffff |
| 40 | max_type_value = 1000 |
| 41 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 42 | def gen_type_to_object_id(out, type_str, prefix, template, |
| 43 | value_array, max_val): |
| 44 | """ |
| 45 | Generate C maps from various message class groups to object ids |
| 46 | |
| 47 | For each version, create an array mapping the type info to the |
| 48 | object ID. Then define an array containing those pointers. |
| 49 | """ |
| 50 | |
| 51 | # Create unified arrays and get length |
| 52 | arr_len = type_maps.type_array_len(value_array, max_val) |
| 53 | all_ars = [] |
| 54 | for version, val_dict in value_array.items(): # Per version dict |
| 55 | ar = type_maps.dict_to_array(val_dict, max_val, type_maps.invalid_type) |
| 56 | all_ars.append(ar) |
| 57 | |
| 58 | len_name = "%s_ITEM_COUNT" % prefix |
| 59 | |
| 60 | for i, ar in enumerate(all_ars): |
| 61 | version = i + 1 |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 62 | out.write("static const of_object_id_t\nof_%s_v%d[%s] = {\n" % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 63 | (type_str, version, len_name)) |
| 64 | for i in range(arr_len): |
| 65 | comma = "" |
| 66 | if i < arr_len - 1: # Avoid ultimate comma |
| 67 | comma = "," |
| 68 | |
| 69 | # Per-version length check |
| 70 | if i < len(ar): |
| 71 | v = ar[i] |
| 72 | else: |
| 73 | v = type_maps.invalid_type |
| 74 | |
| 75 | if v == type_maps.invalid_type: |
| 76 | out.write(" %-30s /* %d (Invalid) */\n" % |
| 77 | ("OF_OBJECT_INVALID" + comma, i)) |
| 78 | else: |
| 79 | name = (template % v.upper()) + comma |
| 80 | out.write(" %-30s /* %d */\n" % (name, i)) |
| 81 | out.write("};\n") |
| 82 | |
| 83 | out.write(""" |
| 84 | /** |
| 85 | * Maps from %(c_name)s wire type values to LOCI object ids |
| 86 | * |
| 87 | * Indexed by wire version which is 1-based. |
| 88 | */ |
| 89 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 90 | const of_object_id_t *const of_%(name)s[OF_VERSION_ARRAY_MAX] = { |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 91 | NULL, |
| 92 | """ % dict(name=type_str, c_name=prefix.lower())) |
| 93 | for version in of_g.of_version_range: |
| 94 | out.write(" of_%(name)s_v%(version)d,\n" % dict(name=type_str, |
| 95 | version=version)) |
| 96 | out.write(""" |
| 97 | }; |
| 98 | |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 99 | """ % dict(name=type_str, u_name=type_str.upper(), |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 100 | max_val=max_val, c_name=prefix.lower())) |
| 101 | |
| 102 | def gen_type_maps(out): |
| 103 | """ |
| 104 | Generate various type maps |
| 105 | @param out The file handle to write to |
| 106 | """ |
| 107 | |
| 108 | out.write("#include <loci/loci.h>\n\n") |
| 109 | |
| 110 | # Generate maps from wire type values to object IDs |
Rob Vaterlaus | b3f49d9 | 2013-10-01 17:57:31 -0700 | [diff] [blame] | 111 | gen_type_to_object_id(out, "error_msg_type_to_id", "OF_ERROR_MSG", |
| 112 | "OF_%s_ERROR_MSG", type_maps.error_types, |
| 113 | max_type_value) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 114 | gen_type_to_object_id(out, "action_type_to_id", "OF_ACTION", |
| 115 | "OF_ACTION_%s", type_maps.action_types, |
| 116 | max_type_value) |
| 117 | gen_type_to_object_id(out, "action_id_type_to_id", "OF_ACTION_ID", |
| 118 | "OF_ACTION_ID_%s", type_maps.action_id_types, |
| 119 | max_type_value) |
| 120 | gen_type_to_object_id(out, "instruction_type_to_id", "OF_INSTRUCTION", |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 121 | "OF_INSTRUCTION_%s", type_maps.instruction_types, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 122 | max_type_value) |
| 123 | gen_type_to_object_id(out, "queue_prop_type_to_id", "OF_QUEUE_PROP", |
| 124 | "OF_QUEUE_PROP_%s", type_maps.queue_prop_types, |
| 125 | max_type_value) |
| 126 | gen_type_to_object_id(out, "table_feature_prop_type_to_id", |
| 127 | "OF_TABLE_FEATURE_PROP", |
| 128 | "OF_TABLE_FEATURE_PROP_%s", |
| 129 | type_maps.table_feature_prop_types, |
| 130 | max_type_value) |
| 131 | gen_type_to_object_id(out, "meter_band_type_to_id", "OF_METER_BAND", |
| 132 | "OF_METER_BAND_%s", type_maps.meter_band_types, |
| 133 | max_type_value) |
| 134 | gen_type_to_object_id(out, "hello_elem_type_to_id", "OF_HELLO_ELEM", |
| 135 | "OF_HELLO_ELEM_%s", type_maps.hello_elem_types, |
| 136 | max_type_value) |
Rich Lane | e311367 | 2013-12-06 17:09:57 -0800 | [diff] [blame] | 137 | gen_type_to_object_id(out, "group_mod_type_to_id", "OF_GROUP_MOD", |
| 138 | "OF_GROUP_%s", type_maps.group_mod_types, |
| 139 | max_type_value) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 140 | |
| 141 | # FIXME: Multipart re-organization |
| 142 | gen_type_to_object_id(out, "stats_request_type_to_id", "OF_STATS_REQUEST", |
| 143 | "OF_%s_STATS_REQUEST", type_maps.stats_types, |
| 144 | max_type_value) |
| 145 | gen_type_to_object_id(out, "stats_reply_type_to_id", "OF_STATS_REPLY", |
| 146 | "OF_%s_STATS_REPLY", type_maps.stats_types, |
| 147 | max_type_value) |
| 148 | gen_type_to_object_id(out, "flow_mod_type_to_id", "OF_FLOW_MOD", |
| 149 | "OF_FLOW_%s", type_maps.flow_mod_types, |
| 150 | max_type_value) |
| 151 | gen_type_to_object_id(out, "oxm_type_to_id", "OF_OXM", |
| 152 | "OF_OXM_%s", type_maps.oxm_types, max_type_value) |
| 153 | gen_type_to_object_id(out, "message_type_to_id", "OF_MESSAGE", |
| 154 | "OF_%s", type_maps.message_types, max_type_value) |
| 155 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 156 | def gen_type_to_obj_map_functions(out): |
| 157 | """ |
| 158 | Generate the templated static inline type map functions |
| 159 | @param out The file handle to write to |
| 160 | """ |
| 161 | |
| 162 | ################################################################ |
| 163 | # Generate all type-to-object-ID maps in a common way |
| 164 | ################################################################ |
| 165 | map_template = """ |
| 166 | /** |
| 167 | * %(name)s wire type to object ID array. |
| 168 | * Treat as private; use function accessor below |
| 169 | */ |
| 170 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 171 | extern const of_object_id_t *const of_%(name)s_type_to_id[OF_VERSION_ARRAY_MAX]; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 172 | |
| 173 | #define OF_%(u_name)s_ITEM_COUNT %(ar_len)d\n |
| 174 | |
| 175 | /** |
| 176 | * Map an %(name)s wire value to an OF object |
| 177 | * @param %(name)s The %(name)s type wire value |
| 178 | * @param version The version associated with the check |
| 179 | * @return The %(name)s OF object type |
| 180 | * @return OF_OBJECT_INVALID if type does not map to an object |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 181 | * |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 182 | */ |
| 183 | static inline of_object_id_t |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 184 | of_%(name)s_to_object_id(int %(name)s, of_version_t version) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 185 | { |
| 186 | if (!OF_VERSION_OKAY(version)) { |
| 187 | return OF_OBJECT_INVALID; |
| 188 | } |
| 189 | if (%(name)s < 0 || %(name)s >= OF_%(u_name)s_ITEM_COUNT) { |
| 190 | return OF_OBJECT_INVALID; |
| 191 | } |
| 192 | |
| 193 | return of_%(name)s_type_to_id[version][%(name)s]; |
| 194 | } |
| 195 | """ |
| 196 | map_with_experimenter_template = """ |
| 197 | /** |
| 198 | * %(name)s wire type to object ID array. |
| 199 | * Treat as private; use function accessor below |
| 200 | */ |
| 201 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 202 | extern const of_object_id_t *const of_%(name)s_type_to_id[OF_VERSION_ARRAY_MAX]; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 203 | |
| 204 | #define OF_%(u_name)s_ITEM_COUNT %(ar_len)d\n |
| 205 | |
| 206 | /** |
| 207 | * Map an %(name)s wire value to an OF object |
| 208 | * @param %(name)s The %(name)s type wire value |
| 209 | * @param version The version associated with the check |
| 210 | * @return The %(name)s OF object type |
| 211 | * @return OF_OBJECT_INVALID if type does not map to an object |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 212 | * |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 213 | */ |
| 214 | static inline of_object_id_t |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 215 | of_%(name)s_to_object_id(int %(name)s, of_version_t version) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 216 | { |
| 217 | if (!OF_VERSION_OKAY(version)) { |
| 218 | return OF_OBJECT_INVALID; |
| 219 | } |
| 220 | if (%(name)s == OF_EXPERIMENTER_TYPE) { |
| 221 | return OF_%(u_name)s_EXPERIMENTER; |
| 222 | } |
| 223 | if (%(name)s < 0 || %(name)s >= OF_%(u_name)s_ITEM_COUNT) { |
| 224 | return OF_OBJECT_INVALID; |
| 225 | } |
| 226 | |
| 227 | return of_%(name)s_type_to_id[version][%(name)s]; |
| 228 | } |
| 229 | """ |
| 230 | |
| 231 | stats_template = """ |
| 232 | /** |
| 233 | * %(name)s wire type to object ID array. |
| 234 | * Treat as private; use function accessor below |
| 235 | */ |
| 236 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 237 | extern const of_object_id_t *const of_%(name)s_type_to_id[OF_VERSION_ARRAY_MAX]; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 238 | |
| 239 | #define OF_%(u_name)s_ITEM_COUNT %(ar_len)d\n |
| 240 | |
| 241 | /** |
| 242 | * Map an %(name)s wire value to an OF object |
| 243 | * @param %(name)s The %(name)s type wire value |
| 244 | * @param version The version associated with the check |
| 245 | * @return The %(name)s OF object type |
| 246 | * @return OF_OBJECT_INVALID if type does not map to an object |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 247 | * |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 248 | */ |
| 249 | static inline of_object_id_t |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 250 | of_%(name)s_to_object_id(int %(name)s, of_version_t version) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 251 | { |
| 252 | if (!OF_VERSION_OKAY(version)) { |
| 253 | return OF_OBJECT_INVALID; |
| 254 | } |
| 255 | if (%(name)s == OF_EXPERIMENTER_TYPE) { |
| 256 | return OF_EXPERIMENTER_%(u_name)s; |
| 257 | } |
| 258 | if (%(name)s < 0 || %(name)s >= OF_%(u_name)s_ITEM_COUNT) { |
| 259 | return OF_OBJECT_INVALID; |
| 260 | } |
| 261 | |
| 262 | return of_%(name)s_type_to_id[version][%(name)s]; |
| 263 | } |
| 264 | """ |
Rob Vaterlaus | b3f49d9 | 2013-10-01 17:57:31 -0700 | [diff] [blame] | 265 | |
| 266 | error_msg_template = """ |
| 267 | /** |
| 268 | * %(name)s wire type to object ID array. |
| 269 | * Treat as private; use function accessor below |
| 270 | */ |
| 271 | |
| 272 | extern const of_object_id_t *const of_%(name)s_type_to_id[OF_VERSION_ARRAY_MAX]; |
| 273 | |
| 274 | #define OF_%(u_name)s_ITEM_COUNT %(ar_len)d\n |
| 275 | |
| 276 | /** |
| 277 | * Map an %(name)s wire value to an OF object |
| 278 | * @param %(name)s The %(name)s type wire value |
| 279 | * @param version The version associated with the check |
| 280 | * @return The %(name)s OF object type |
| 281 | * @return OF_OBJECT_INVALID if type does not map to an object |
| 282 | * |
| 283 | */ |
| 284 | static inline of_object_id_t |
| 285 | of_error_msg_to_object_id(uint16_t %(name)s, of_version_t version) |
| 286 | { |
| 287 | if (!OF_VERSION_OKAY(version)) { |
| 288 | return OF_OBJECT_INVALID; |
| 289 | } |
| 290 | if (%(name)s == OF_EXPERIMENTER_TYPE) { |
| 291 | return OF_EXPERIMENTER_ERROR_MSG; |
| 292 | } |
| 293 | if (%(name)s < 0 || %(name)s >= OF_%(u_name)s_ITEM_COUNT) { |
| 294 | return OF_OBJECT_INVALID; |
| 295 | } |
| 296 | |
| 297 | return of_%(name)s_type_to_id[version][%(name)s]; |
| 298 | } |
| 299 | """ |
| 300 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 301 | # Experimenter mapping functions |
| 302 | # Currently we support very few candidates, so we just do a |
| 303 | # list of if/elses |
| 304 | experimenter_function = """ |
| 305 | /** |
| 306 | * @brief Map a message known to be an exp msg to the proper object |
| 307 | * |
| 308 | * Assume that the message is a vendor/experimenter message. Determine |
| 309 | * the specific object type for the message. |
| 310 | * @param msg An OF message object (uint8_t *) |
| 311 | * @param length The number of bytes in the message (for error checking) |
| 312 | * @param version Version of message |
| 313 | * @returns object ID of specific type if recognized or OF_EXPERIMENTER if not |
| 314 | * |
| 315 | * @todo put OF_EXPERIMENTER_<name> in loci_base.h |
| 316 | */ |
| 317 | |
| 318 | static inline of_object_id_t |
| 319 | of_message_experimenter_to_object_id(of_message_t msg, of_version_t version) { |
| 320 | uint32_t experimenter_id; |
| 321 | uint32_t subtype; |
| 322 | |
| 323 | /* Extract experimenter and subtype value; look for match from type maps */ |
| 324 | experimenter_id = of_message_experimenter_id_get(msg); |
| 325 | subtype = of_message_experimenter_subtype_get(msg); |
| 326 | |
| 327 | /* Do a simple if/else search for the ver, experimenter and subtype */ |
| 328 | """ |
| 329 | first = True |
| 330 | for version, experimenter_lists in type_maps.extension_message_subtype.items(): |
| 331 | for exp, subtypes in experimenter_lists.items(): |
| 332 | experimenter_function += """ |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 333 | if ((experimenter_id == OF_EXPERIMENTER_ID_%(exp_name)s) && |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 334 | (version == %(ver_name)s)) { |
| 335 | """ % dict(exp_name=exp.upper(), ver_name=of_g.wire_ver_map[version]) |
| 336 | for ext_msg, subtype in subtypes.items(): |
| 337 | experimenter_function += """ |
| 338 | if (subtype == %(subtype)s) { |
| 339 | return %(ext_msg)s; |
| 340 | } |
| 341 | """ % dict(subtype=subtype, ext_msg=ext_msg.upper()) |
| 342 | experimenter_function += """ |
| 343 | } |
| 344 | """ |
| 345 | experimenter_function += """ |
| 346 | return OF_EXPERIMENTER; |
| 347 | } |
| 348 | """ |
| 349 | |
| 350 | # Message need different handling |
| 351 | msg_template = """ |
| 352 | /** |
| 353 | * %(name)s wire type to object ID array. |
| 354 | * Treat as private; use function accessor below |
| 355 | */ |
| 356 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 357 | extern const of_object_id_t *const of_%(name)s_type_to_id[OF_VERSION_ARRAY_MAX]; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 358 | |
| 359 | #define OF_%(u_name)s_ITEM_COUNT %(ar_len)d\n |
| 360 | |
| 361 | /** |
| 362 | * Extract the type info from the message and determine its object type |
| 363 | * @param msg An OF message object (uint8_t *) |
| 364 | * @param length The number of bytes in the message (for error checking) |
| 365 | * @returns object ID or OF_OBJECT_INVALID if parse error |
| 366 | */ |
| 367 | |
| 368 | static inline of_object_id_t |
| 369 | of_message_to_object_id(of_message_t msg, int length) { |
| 370 | uint8_t type; |
| 371 | of_version_t ver; |
| 372 | of_object_id_t obj_id; |
| 373 | uint16_t stats_type; |
Rob Vaterlaus | b3f49d9 | 2013-10-01 17:57:31 -0700 | [diff] [blame] | 374 | uint16_t err_type; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 375 | uint8_t flow_mod_cmd; |
Rich Lane | 353a79f | 2013-11-13 10:39:56 -0800 | [diff] [blame] | 376 | uint32_t experimenter, subtype; |
Rich Lane | e311367 | 2013-12-06 17:09:57 -0800 | [diff] [blame] | 377 | uint16_t group_mod_cmd; |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 378 | |
| 379 | if (length < OF_MESSAGE_MIN_LENGTH) { |
| 380 | return OF_OBJECT_INVALID; |
| 381 | } |
| 382 | type = of_message_type_get(msg); |
| 383 | ver = of_message_version_get(msg); |
| 384 | if (!OF_VERSION_OKAY(ver)) { |
| 385 | return OF_OBJECT_INVALID; |
| 386 | } |
| 387 | |
| 388 | if (type >= OF_MESSAGE_ITEM_COUNT) { |
| 389 | return OF_OBJECT_INVALID; |
| 390 | } |
| 391 | |
| 392 | obj_id = of_message_type_to_id[ver][type]; |
| 393 | |
| 394 | /* Remap to specific message if known */ |
| 395 | if (obj_id == OF_EXPERIMENTER) { |
| 396 | if (length < OF_MESSAGE_EXPERIMENTER_MIN_LENGTH) { |
| 397 | return OF_OBJECT_INVALID; |
| 398 | } |
| 399 | return of_message_experimenter_to_object_id(msg, ver); |
| 400 | } |
| 401 | |
| 402 | /* Remap to add/delete/strict version */ |
| 403 | if (obj_id == OF_FLOW_MOD) { |
| 404 | if (length < OF_MESSAGE_MIN_FLOW_MOD_LENGTH(ver)) { |
| 405 | return OF_OBJECT_INVALID; |
| 406 | } |
| 407 | flow_mod_cmd = of_message_flow_mod_command_get(msg, ver); |
| 408 | obj_id = of_flow_mod_to_object_id(flow_mod_cmd, ver); |
| 409 | } |
| 410 | |
| 411 | if ((obj_id == OF_STATS_REQUEST) || (obj_id == OF_STATS_REPLY)) { |
| 412 | if (length < OF_MESSAGE_MIN_STATS_LENGTH) { |
| 413 | return OF_OBJECT_INVALID; |
| 414 | } |
| 415 | stats_type = of_message_stats_type_get(msg); |
Rich Lane | 353a79f | 2013-11-13 10:39:56 -0800 | [diff] [blame] | 416 | if (stats_type == OF_STATS_TYPE_EXPERIMENTER) { |
| 417 | if (length < OF_MESSAGE_STATS_EXPERIMENTER_MIN_LENGTH) { |
| 418 | return OF_OBJECT_INVALID; |
| 419 | } |
| 420 | experimenter = of_message_stats_experimenter_id_get(msg); |
| 421 | subtype = of_message_stats_experimenter_subtype_get(msg); |
| 422 | if (obj_id == OF_STATS_REQUEST) { |
| 423 | obj_id = of_experimenter_stats_request_to_object_id(experimenter, subtype, ver); |
| 424 | } else { |
| 425 | obj_id = of_experimenter_stats_reply_to_object_id(experimenter, subtype, ver); |
| 426 | } |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 427 | } else { |
Rich Lane | 353a79f | 2013-11-13 10:39:56 -0800 | [diff] [blame] | 428 | if (obj_id == OF_STATS_REQUEST) { |
| 429 | obj_id = of_stats_request_to_object_id(stats_type, ver); |
| 430 | } else { |
| 431 | obj_id = of_stats_reply_to_object_id(stats_type, ver); |
| 432 | } |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 433 | } |
| 434 | } |
| 435 | |
Rob Vaterlaus | b3f49d9 | 2013-10-01 17:57:31 -0700 | [diff] [blame] | 436 | if (obj_id == OF_ERROR_MSG) { |
| 437 | if (length < OF_MESSAGE_MIN_ERROR_LENGTH) { |
| 438 | return OF_OBJECT_INVALID; |
| 439 | } |
| 440 | err_type = of_message_error_type_get(msg); |
| 441 | obj_id = of_error_msg_to_object_id(err_type, ver); |
| 442 | } |
| 443 | |
Rich Lane | e311367 | 2013-12-06 17:09:57 -0800 | [diff] [blame] | 444 | if (obj_id == OF_GROUP_MOD) { |
| 445 | if (length < OF_MESSAGE_MIN_GROUP_MOD_LENGTH) { |
| 446 | return OF_OBJECT_INVALID; |
| 447 | } |
| 448 | group_mod_cmd = of_message_group_mod_command_get(msg); |
| 449 | obj_id = of_group_mod_to_object_id(group_mod_cmd, ver); |
| 450 | } |
| 451 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 452 | return obj_id; |
| 453 | } |
| 454 | """ |
| 455 | |
Rich Lane | d8d29c9 | 2013-09-24 13:46:42 -0700 | [diff] [blame] | 456 | oxm_template = """ |
| 457 | /** |
| 458 | * oxm wire type to object ID array. |
| 459 | * Treat as private; use function accessor below |
| 460 | */ |
| 461 | |
| 462 | extern const of_object_id_t *const of_oxm_type_to_id[OF_VERSION_ARRAY_MAX]; |
| 463 | |
| 464 | #define OF_OXM_ITEM_COUNT %(ar_len)d\n |
| 465 | |
| 466 | /** |
| 467 | * Map an oxm wire value to an OF object |
| 468 | * @param oxm The oxm type wire value |
| 469 | * @param version The version associated with the check |
| 470 | * @return The oxm OF object type |
| 471 | * @return OF_OBJECT_INVALID if type does not map to an object |
| 472 | * |
| 473 | */ |
| 474 | static inline of_object_id_t |
| 475 | of_oxm_to_object_id(uint32_t type_len, of_version_t version) |
| 476 | { |
| 477 | if (!OF_VERSION_OKAY(version)) { |
| 478 | return OF_OBJECT_INVALID; |
| 479 | } |
| 480 | |
| 481 | uint16_t class = (type_len >> 16) & 0xffff; |
| 482 | uint8_t masked_type = (type_len >> 8) & 0xff; |
| 483 | |
| 484 | if (class == 0x8000) { |
| 485 | if (masked_type < 0 || masked_type >= OF_OXM_ITEM_COUNT) { |
| 486 | return OF_OBJECT_INVALID; |
| 487 | } |
| 488 | |
| 489 | return of_oxm_type_to_id[version][masked_type]; |
| 490 | } else if (class == 0x0003) { |
| 491 | switch (masked_type) { |
| 492 | case 0x00: return OF_OXM_BSN_IN_PORTS_128; |
| 493 | case 0x01: return OF_OXM_BSN_IN_PORTS_128_MASKED; |
Rich Lane | 6171836 | 2013-10-24 16:59:42 -0700 | [diff] [blame] | 494 | case 0x02: return OF_OXM_BSN_LAG_ID; |
| 495 | case 0x03: return OF_OXM_BSN_LAG_ID_MASKED; |
Rich Lane | eb21c4f | 2013-10-28 17:34:41 -0700 | [diff] [blame] | 496 | case 0x04: return OF_OXM_BSN_VRF; |
| 497 | case 0x05: return OF_OXM_BSN_VRF_MASKED; |
| 498 | case 0x06: return OF_OXM_BSN_GLOBAL_VRF_ALLOWED; |
| 499 | case 0x07: return OF_OXM_BSN_GLOBAL_VRF_ALLOWED_MASKED; |
| 500 | case 0x08: return OF_OXM_BSN_L3_INTERFACE_CLASS_ID; |
| 501 | case 0x09: return OF_OXM_BSN_L3_INTERFACE_CLASS_ID_MASKED; |
| 502 | case 0x0a: return OF_OXM_BSN_L3_SRC_CLASS_ID; |
| 503 | case 0x0b: return OF_OXM_BSN_L3_SRC_CLASS_ID_MASKED; |
| 504 | case 0x0c: return OF_OXM_BSN_L3_DST_CLASS_ID; |
| 505 | case 0x0d: return OF_OXM_BSN_L3_DST_CLASS_ID_MASKED; |
Rich Lane | d8d29c9 | 2013-09-24 13:46:42 -0700 | [diff] [blame] | 506 | default: return OF_OBJECT_INVALID; |
| 507 | } |
| 508 | } else { |
| 509 | return OF_OBJECT_INVALID; |
| 510 | } |
| 511 | } |
| 512 | """ |
| 513 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 514 | # Action types array gen |
| 515 | ar_len = type_maps.type_array_len(type_maps.action_types, max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 516 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 517 | dict(name="action", u_name="ACTION", ar_len=ar_len)) |
| 518 | |
| 519 | # Action ID types array gen |
| 520 | ar_len = type_maps.type_array_len(type_maps.action_id_types, max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 521 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 522 | dict(name="action_id", u_name="ACTION_ID", ar_len=ar_len)) |
| 523 | |
| 524 | # Instruction types array gen |
| 525 | ar_len = type_maps.type_array_len(type_maps.instruction_types, |
| 526 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 527 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 528 | dict(name="instruction", u_name="INSTRUCTION", ar_len=ar_len)) |
| 529 | |
| 530 | # Queue prop types array gen |
| 531 | ar_len = type_maps.type_array_len(type_maps.queue_prop_types, |
| 532 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 533 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 534 | dict(name="queue_prop", u_name="QUEUE_PROP", ar_len=ar_len)) |
| 535 | |
| 536 | # Table feature prop types array gen |
| 537 | ar_len = type_maps.type_array_len(type_maps.table_feature_prop_types, |
| 538 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 539 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 540 | dict(name="table_feature_prop", u_name="TABLE_FEATURE_PROP", |
| 541 | ar_len=ar_len)) |
| 542 | |
| 543 | # Meter band types array gen |
| 544 | ar_len = type_maps.type_array_len(type_maps.meter_band_types, |
| 545 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 546 | out.write(map_with_experimenter_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 547 | dict(name="meter_band", u_name="METER_BAND", ar_len=ar_len)) |
| 548 | |
| 549 | # Hello elem types array gen |
| 550 | ar_len = type_maps.type_array_len(type_maps.hello_elem_types, |
| 551 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 552 | out.write(map_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 553 | dict(name="hello_elem", u_name="HELLO_ELEM", ar_len=ar_len)) |
| 554 | |
| 555 | # Stats types array gen |
| 556 | ar_len = type_maps.type_array_len(type_maps.stats_types, |
| 557 | max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 558 | out.write(stats_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 559 | dict(name="stats_reply", u_name="STATS_REPLY", ar_len=ar_len)) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 560 | out.write(stats_template % |
| 561 | dict(name="stats_request", u_name="STATS_REQUEST", |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 562 | ar_len=ar_len)) |
| 563 | |
Rob Vaterlaus | b3f49d9 | 2013-10-01 17:57:31 -0700 | [diff] [blame] | 564 | ar_len = type_maps.type_array_len(type_maps.error_types, |
| 565 | max_type_value) |
| 566 | out.write(error_msg_template % |
| 567 | dict(name="error_msg", u_name="ERROR_MSG", ar_len=ar_len)) |
| 568 | # out.write(error_msg_function) |
| 569 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 570 | ar_len = type_maps.type_array_len(type_maps.flow_mod_types, max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 571 | out.write(map_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 572 | dict(name="flow_mod", u_name="FLOW_MOD", ar_len=ar_len)) |
| 573 | |
Rich Lane | e311367 | 2013-12-06 17:09:57 -0800 | [diff] [blame] | 574 | ar_len = type_maps.type_array_len(type_maps.group_mod_types, |
| 575 | max_type_value) |
| 576 | out.write(map_template % |
| 577 | dict(name="group_mod", u_name="GROUP_MOD", ar_len=ar_len)) |
| 578 | |
Rich Lane | d8d29c9 | 2013-09-24 13:46:42 -0700 | [diff] [blame] | 579 | # OXM |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 580 | ar_len = type_maps.type_array_len(type_maps.oxm_types, max_type_value) |
| 581 | out.write(""" |
| 582 | /* NOTE: We could optimize the OXM and only generate OF 1.2 versions. */ |
| 583 | """) |
Rich Lane | d8d29c9 | 2013-09-24 13:46:42 -0700 | [diff] [blame] | 584 | out.write(oxm_template % dict(ar_len=ar_len)) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 585 | |
Rich Lane | d8d29c9 | 2013-09-24 13:46:42 -0700 | [diff] [blame] | 586 | # Messages |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 587 | out.write(experimenter_function) |
| 588 | # Must follow stats reply/request |
| 589 | ar_len = type_maps.type_array_len(type_maps.message_types, max_type_value) |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 590 | out.write(msg_template % |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 591 | dict(name="message", u_name="MESSAGE", ar_len=ar_len)) |
| 592 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 593 | def gen_type_maps_header(out): |
| 594 | """ |
| 595 | Generate various header file declarations for type maps |
| 596 | @param out The file handle to write to |
| 597 | """ |
| 598 | |
| 599 | out.write(""" |
| 600 | /** |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 601 | * Generic experimenter type value. Applies to all except |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 602 | * top level message: Action, instruction, error, stats, queue_props, oxm |
| 603 | */ |
| 604 | #define OF_EXPERIMENTER_TYPE 0xffff |
Rich Lane | 353a79f | 2013-11-13 10:39:56 -0800 | [diff] [blame] | 605 | |
| 606 | int of_experimenter_stats_request_to_object_id(uint32_t experimenter, uint32_t subtype, int ver); |
| 607 | int of_experimenter_stats_reply_to_object_id(uint32_t experimenter, uint32_t subtype, int ver); |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 608 | """) |
| 609 | gen_type_to_obj_map_functions(out) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 610 | |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 611 | out.write("extern const int *const of_object_fixed_len[OF_VERSION_ARRAY_MAX];\n") |
Rich Lane | f70be94 | 2013-07-18 13:33:14 -0700 | [diff] [blame] | 612 | out.write("extern const int *const of_object_extra_len[OF_VERSION_ARRAY_MAX];\n") |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 613 | |
| 614 | out.write(""" |
| 615 | /** |
| 616 | * Map a message in a wire buffer object to its OF object id. |
| 617 | * @param wbuf Pointer to a wire buffer object, populated with an OF message |
| 618 | * @returns The object ID of the message |
| 619 | * @returns OF_OBJECT_INVALID if unable to parse the message type |
| 620 | */ |
| 621 | |
| 622 | static inline of_object_id_t |
| 623 | of_wire_object_id_get(of_wire_buffer_t *wbuf) |
| 624 | { |
| 625 | of_message_t msg; |
| 626 | |
| 627 | msg = (of_message_t)WBUF_BUF(wbuf); |
| 628 | return of_message_to_object_id(msg, WBUF_CURRENT_BYTES(wbuf)); |
| 629 | } |
| 630 | |
| 631 | /** |
| 632 | * Use the type/length from the wire buffer and init the object |
| 633 | * @param obj The object being initialized |
| 634 | * @param base_object_id If > 0, this indicates the base object |
| 635 | * @param max_len If > 0, the max length to expect for the obj |
| 636 | * type for inheritance checking |
| 637 | * @return OF_ERROR_ |
| 638 | * |
| 639 | * Used for inheritance type objects such as actions and OXMs |
| 640 | * The type is checked and if valid, the object is initialized. |
| 641 | * Then the length is taken from the buffer. |
| 642 | * |
| 643 | * Note that the object version must already be properly set. |
| 644 | */ |
| 645 | static inline int |
| 646 | of_object_wire_init(of_object_t *obj, of_object_id_t base_object_id, |
| 647 | int max_len) |
| 648 | { |
| 649 | if (obj->wire_type_get != NULL) { |
| 650 | of_object_id_t id; |
| 651 | obj->wire_type_get(obj, &id); |
| 652 | if (!of_wire_id_valid(id, base_object_id)) { |
| 653 | return OF_ERROR_PARSE; |
| 654 | } |
| 655 | obj->object_id = id; |
| 656 | /* Call the init function for this object type; do not push to wire */ |
| 657 | of_object_init_map[id]((of_object_t *)(obj), obj->version, -1, 0); |
| 658 | } |
| 659 | if (obj->wire_length_get != NULL) { |
| 660 | int length; |
| 661 | obj->wire_length_get(obj, &length); |
| 662 | if (length < 0 || (max_len > 0 && length > max_len)) { |
| 663 | return OF_ERROR_PARSE; |
| 664 | } |
| 665 | obj->length = length; |
| 666 | } else { |
| 667 | /* @fixme Does this cover everything else? */ |
| 668 | obj->length = of_object_fixed_len[obj->version][base_object_id]; |
| 669 | } |
| 670 | |
| 671 | return OF_ERROR_NONE; |
| 672 | } |
| 673 | |
| 674 | """) |
| 675 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 676 | def gen_type_data_header(out): |
| 677 | |
| 678 | out.write(""" |
| 679 | /**************************************************************** |
| 680 | * |
| 681 | * The following declarations are for type and length calculations. |
| 682 | * Implementations may be found in of_type_maps.c |
| 683 | * |
| 684 | ****************************************************************/ |
| 685 | /* |
| 686 | * Special case length functions for objects with |
| 687 | */ |
| 688 | """) |
| 689 | for ((cls, name), prev) in of_g.special_offsets.items(): |
| 690 | s_cls = cls[3:] # take off of_ |
| 691 | out.write(""" |
| 692 | /** |
| 693 | * Special length calculation for %(cls)s->%(name)s. |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 694 | * @param obj An object of type %(cls)s to check for |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 695 | * length of %(name)s |
| 696 | * @param bytes[out] Where to store the calculated length |
| 697 | * |
| 698 | * Preceding data member is %(prev)s. |
| 699 | */ |
| 700 | extern int of_length_%(s_cls)s_%(name)s_get( |
| 701 | %(cls)s_t *obj, int *bytes); |
| 702 | |
| 703 | /** |
| 704 | * Special offset calculation for %(cls)s->%(name)s. |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 705 | * @param obj An object of type %(cls)s to check for |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 706 | * length of %(name)s |
| 707 | * @param offset[out] Where to store the calculated length |
| 708 | * |
| 709 | * Preceding data member is %(prev)s. |
| 710 | */ |
| 711 | extern int of_offset_%(s_cls)s_%(name)s_get( |
| 712 | %(cls)s_t *obj, int *offset); |
| 713 | """ % dict(cls=cls, s_cls=s_cls, name=name, prev=prev)) |
| 714 | |
| 715 | # NOT NEEDED YET |
| 716 | # # For non-message, variable length objects, give a fun that |
| 717 | # # calculates the length |
| 718 | # for cls in of_g.standard_class_order: |
| 719 | # s_cls = cls[3:] # take off of_ |
| 720 | # if !type_is_var_len(cls, version): |
| 721 | # continue |
| 722 | # out.write(""" |
| 723 | # /** |
| 724 | # * Special length calculation for variable length object %(cls)s |
| 725 | # * @param obj An object of type %(cls)s whose length is being calculated |
| 726 | # * @param bytes[out] Where to store the calculated length |
| 727 | # * |
| 728 | # * The assumption is that the length member of the object is not |
| 729 | # * valid and the length needs to be calculated from other information |
| 730 | # * such as the parent. |
| 731 | # */ |
| 732 | # extern int of_length_%(s_cls)s_get( |
| 733 | # %(cls)s_t *obj, int *bytes); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 734 | # """ % dict(cls=cls, s_cls=s_cls)) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 735 | |
| 736 | out.write(""" |
| 737 | /**************************************************************** |
| 738 | * Wire type/length functions. |
| 739 | ****************************************************************/ |
| 740 | |
| 741 | extern void of_object_message_wire_length_get(of_object_t *obj, int *bytes); |
| 742 | extern void of_object_message_wire_length_set(of_object_t *obj, int bytes); |
| 743 | |
| 744 | extern void of_oxm_wire_length_get(of_object_t *obj, int *bytes); |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 745 | extern void of_oxm_wire_object_id_get(of_object_t *obj, of_object_id_t *id); |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 746 | |
| 747 | extern void of_tlv16_wire_length_get(of_object_t *obj, int *bytes); |
| 748 | extern void of_tlv16_wire_length_set(of_object_t *obj, int bytes); |
| 749 | |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 750 | /* Wire length is uint16 at front of structure */ |
| 751 | extern void of_u16_len_wire_length_get(of_object_t *obj, int *bytes); |
| 752 | extern void of_u16_len_wire_length_set(of_object_t *obj, int bytes); |
| 753 | |
| 754 | extern void of_action_wire_object_id_get(of_object_t *obj, of_object_id_t *id); |
| 755 | extern void of_action_id_wire_object_id_get(of_object_t *obj, of_object_id_t *id); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 756 | extern void of_instruction_wire_object_id_get(of_object_t *obj, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 757 | of_object_id_t *id); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 758 | extern void of_queue_prop_wire_object_id_get(of_object_t *obj, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 759 | of_object_id_t *id); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 760 | extern void of_table_feature_prop_wire_object_id_get(of_object_t *obj, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 761 | of_object_id_t *id); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 762 | extern void of_meter_band_wire_object_id_get(of_object_t *obj, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 763 | of_object_id_t *id); |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 764 | extern void of_hello_elem_wire_object_id_get(of_object_t *obj, |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 765 | of_object_id_t *id); |
| 766 | |
Rich Lane | 4708572 | 2013-07-12 16:27:04 -0700 | [diff] [blame] | 767 | #define OF_OXM_LENGTH_GET(hdr) (((hdr) & 0xff) + 4) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 768 | #define OF_OXM_LENGTH_SET(hdr, val) \\ |
Rich Lane | 4708572 | 2013-07-12 16:27:04 -0700 | [diff] [blame] | 769 | (hdr) = ((hdr) & 0xffffff00) + (((val) - 4) & 0xff) |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 770 | |
| 771 | extern void of_packet_queue_wire_length_get(of_object_t *obj, int *bytes); |
| 772 | extern void of_packet_queue_wire_length_set(of_object_t *obj, int bytes); |
| 773 | |
| 774 | extern void of_list_meter_band_stats_wire_length_get(of_object_t *obj, |
| 775 | int *bytes); |
| 776 | extern void of_meter_stats_wire_length_get(of_object_t *obj, int *bytes); |
| 777 | extern void of_meter_stats_wire_length_set(of_object_t *obj, int bytes); |
| 778 | extern int of_extension_object_wire_push(of_object_t *obj); |
| 779 | |
| 780 | """) |
| 781 | |
| 782 | |
| 783 | def gen_length_array(out): |
| 784 | """ |
| 785 | Generate an array giving the lengths of all objects/versions |
| 786 | @param out The file handle to which to write |
| 787 | """ |
| 788 | out.write(""" |
| 789 | /** |
| 790 | * An array with the number of bytes in the fixed length part |
| 791 | * of each OF object |
| 792 | */ |
| 793 | """) |
| 794 | |
| 795 | for version in of_g.of_version_range: |
| 796 | out.write(""" |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 797 | static const int\nof_object_fixed_len_v%d[OF_OBJECT_COUNT] = { |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 798 | -1, /* of_object is not instantiable */ |
| 799 | """ % version) |
| 800 | for i, cls in enumerate(of_g.all_class_order): |
| 801 | comma = "," |
| 802 | if i == len(of_g.all_class_order) - 1: |
| 803 | comma = "" |
| 804 | val = "-1" + comma |
| 805 | if (cls, version) in of_g.base_length: |
| 806 | val = str(of_g.base_length[(cls, version)]) + comma |
| 807 | out.write(" %-5s /* %d: %s */\n" % (val, i + 1, cls)) |
| 808 | out.write("};\n") |
| 809 | |
| 810 | out.write(""" |
| 811 | /** |
| 812 | * Unified map of fixed length part of each object |
| 813 | */ |
Rich Lane | b157b0f | 2013-03-27 13:55:28 -0700 | [diff] [blame] | 814 | const int *const of_object_fixed_len[OF_VERSION_ARRAY_MAX] = { |
Rich Lane | a06d0c3 | 2013-03-25 08:52:03 -0700 | [diff] [blame] | 815 | NULL, |
| 816 | """) |
| 817 | for version in of_g.of_version_range: |
| 818 | out.write(" of_object_fixed_len_v%d,\n" % version) |
| 819 | out.write(""" |
| 820 | }; |
| 821 | """) |
| 822 | |
Andreas Wundsam | 5325616 | 2013-05-02 14:05:53 -0700 | [diff] [blame] | 823 | |
Rich Lane | f70be94 | 2013-07-18 13:33:14 -0700 | [diff] [blame] | 824 | def gen_extra_length_array(out): |
| 825 | """ |
| 826 | Generate an array giving the extra lengths of all objects/versions |
| 827 | @param out The file handle to which to write |
| 828 | """ |
| 829 | out.write(""" |
| 830 | /** |
| 831 | * An array with the number of bytes in the extra length part |
| 832 | * of each OF object |
| 833 | */ |
| 834 | """) |
| 835 | |
| 836 | for version in of_g.of_version_range: |
| 837 | out.write(""" |
| 838 | static const int\nof_object_extra_len_v%d[OF_OBJECT_COUNT] = { |
| 839 | -1, /* of_object is not instantiable */ |
| 840 | """ % version) |
| 841 | for i, cls in enumerate(of_g.all_class_order): |
| 842 | comma = "," |
| 843 | if i == len(of_g.all_class_order) - 1: |
| 844 | comma = "" |
| 845 | val = "-1" + comma |
| 846 | if (cls, version) in of_g.base_length: |
| 847 | val = str(of_g.extra_length.get((cls, version), 0)) + comma |
| 848 | out.write(" %-5s /* %d: %s */\n" % (val, i + 1, cls)) |
| 849 | out.write("};\n") |
| 850 | |
| 851 | out.write(""" |
| 852 | /** |
| 853 | * Unified map of extra length part of each object |
| 854 | */ |
| 855 | const int *const of_object_extra_len[OF_VERSION_ARRAY_MAX] = { |
| 856 | NULL, |
| 857 | """) |
| 858 | for version in of_g.of_version_range: |
| 859 | out.write(" of_object_extra_len_v%d,\n" % version) |
| 860 | out.write(""" |
| 861 | }; |
| 862 | """) |