| :: # Copyright 2013, Big Switch Networks, Inc. |
| :: # |
| :: # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with |
| :: # the following special exception: |
| :: # |
| :: # LOXI Exception |
| :: # |
| :: # As a special exception to the terms of the EPL, you may distribute libraries |
| :: # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided |
| :: # that copyright and licensing notices generated by LoxiGen are not altered or removed |
| :: # from the LoxiGen Libraries and the notice provided below is (i) included in |
| :: # the LoxiGen Libraries, if distributed in source code form and (ii) included in any |
| :: # documentation for the LoxiGen Libraries, if distributed in binary form. |
| :: # |
| :: # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler." |
| :: # |
| :: # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain |
| :: # a copy of the EPL at: |
| :: # |
| :: # http://www.eclipse.org/legal/epl-v10.html |
| :: # |
| :: # Unless required by applicable law or agreed to in writing, software |
| :: # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| :: # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| :: # EPL for the specific language governing permissions and limitations |
| :: # under the EPL. |
| :: |
| /* Copyright 2013, Big Switch Networks, Inc. */ |
| |
| /**************************************************************** |
| * |
| * Functions related to mapping wire values to object types |
| * and lengths |
| * |
| ****************************************************************/ |
| |
| #include <loci/loci.h> |
| #include <loci/of_message.h> |
| |
| /**************************************************************** |
| * Top level OpenFlow message length functions |
| ****************************************************************/ |
| |
| /** |
| * Get the length of a message object as reported on the wire |
| * @param obj The object to check |
| * @param bytes (out) Where the length is stored |
| * @returns OF_ERROR_ code |
| */ |
| void |
| of_object_message_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| // ASSERT(obj is message) |
| *bytes = of_message_length_get(OF_OBJECT_TO_MESSAGE(obj)); |
| } |
| |
| /** |
| * Set the length of a message object as reported on the wire |
| * @param obj The object to check |
| * @param bytes The new length of the object |
| * @returns OF_ERROR_ code |
| */ |
| void |
| of_object_message_wire_length_set(of_object_t *obj, int bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| // ASSERT(obj is message) |
| of_message_length_set(OF_OBJECT_TO_MESSAGE(obj), bytes); |
| } |
| |
| /**************************************************************** |
| * TLV16 type/length functions |
| ****************************************************************/ |
| |
| /** |
| * Many objects are TLVs and use uint16 for the type and length values |
| * stored on the wire at the beginning of the buffer. |
| */ |
| #define TLV16_WIRE_TYPE_OFFSET 0 |
| #define TLV16_WIRE_LENGTH_OFFSET 2 |
| |
| /** |
| * Get the length field from the wire for a standard TLV |
| * object that uses uint16 for both type and length. |
| * @param obj The object being referenced |
| * @param bytes (out) Where to store the length |
| */ |
| |
| void |
| of_tlv16_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| uint16_t val16; |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| of_wire_buffer_u16_get(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, TLV16_WIRE_LENGTH_OFFSET), &val16); |
| *bytes = val16; |
| } |
| |
| /** |
| * Set the length field in the wire buffer for a standard TLV |
| * object that uses uint16 for both type and length. |
| * @param obj The object being referenced |
| * @param bytes The length value to use |
| */ |
| |
| void |
| of_tlv16_wire_length_set(of_object_t *obj, int bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| of_wire_buffer_u16_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, TLV16_WIRE_LENGTH_OFFSET), bytes); |
| } |
| |
| /** |
| * Get the type field from the wire for a standard TLV object that uses |
| * uint16 for both type and length. |
| * @param obj The object being referenced |
| * @param wire_type (out) Where to store the type |
| */ |
| |
| static void |
| of_tlv16_wire_type_get(of_object_t *obj, int *wire_type) |
| { |
| uint16_t val16; |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| |
| of_wire_buffer_u16_get(wbuf, OF_OBJECT_ABSOLUTE_OFFSET(obj, |
| TLV16_WIRE_TYPE_OFFSET), &val16); |
| |
| *wire_type = val16; |
| } |
| |
| /** |
| * Set the object ID based on the wire buffer for any TLV object |
| * @param obj The object being referenced |
| * @param id The ID value representing what should be stored. |
| */ |
| |
| void |
| of_tlv16_wire_object_id_set(of_object_t *obj, of_object_id_t id) |
| { |
| int wire_type; |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| wire_type = of_object_to_type_map[obj->version][id]; |
| ASSERT(wire_type >= 0); |
| |
| of_wire_buffer_u16_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, TLV16_WIRE_TYPE_OFFSET), wire_type); |
| |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| of_extension_object_id_set(obj, id); |
| } |
| } |
| |
| /** |
| * Get the object ID of an extended action |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| * @fixme: This should be auto generated |
| * |
| * If unable to map to known extension, set id to generic "experimenter" |
| */ |
| |
| #define OF_ACTION_EXPERIMENTER_ID_OFFSET 4 |
| #define OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET 8 |
| |
| |
| static void |
| extension_action_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| uint32_t exp_id; |
| uint8_t *buf; |
| |
| *id = OF_ACTION_EXPERIMENTER; |
| |
| buf = OF_OBJECT_BUFFER_INDEX(obj, 0); |
| |
| buf_u32_get(buf + OF_ACTION_EXPERIMENTER_ID_OFFSET, &exp_id); |
| |
| switch (exp_id) { |
| case OF_EXPERIMENTER_ID_BSN: { |
| uint32_t subtype; |
| buf_u32_get(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, &subtype); |
| switch (subtype) { |
| case 1: *id = OF_ACTION_BSN_MIRROR; break; |
| case 2: *id = OF_ACTION_BSN_SET_TUNNEL_DST; break; |
| } |
| break; |
| } |
| case OF_EXPERIMENTER_ID_NICIRA: { |
| uint16_t subtype; |
| buf_u16_get(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, &subtype); |
| switch (subtype) { |
| case 18: *id = OF_ACTION_NICIRA_DEC_TTL; break; |
| } |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Set wire data for extension objects, not messages. |
| * |
| * Currently only handles BSN mirror; ignores all others |
| */ |
| |
| void |
| of_extension_object_id_set(of_object_t *obj, of_object_id_t id) |
| { |
| uint8_t *buf = OF_OBJECT_BUFFER_INDEX(obj, 0); |
| |
| switch (id) { |
| case OF_ACTION_BSN_MIRROR: |
| case OF_ACTION_ID_BSN_MIRROR: |
| buf_u32_set(buf + OF_ACTION_EXPERIMENTER_ID_OFFSET, |
| OF_EXPERIMENTER_ID_BSN); |
| buf_u32_set(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, 1); |
| break; |
| case OF_ACTION_BSN_SET_TUNNEL_DST: |
| case OF_ACTION_ID_BSN_SET_TUNNEL_DST: |
| buf_u32_set(buf + OF_ACTION_EXPERIMENTER_ID_OFFSET, |
| OF_EXPERIMENTER_ID_BSN); |
| buf_u32_set(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, 2); |
| break; |
| case OF_ACTION_NICIRA_DEC_TTL: |
| case OF_ACTION_ID_NICIRA_DEC_TTL: |
| buf_u32_set(buf + OF_ACTION_EXPERIMENTER_ID_OFFSET, |
| OF_EXPERIMENTER_ID_NICIRA); |
| buf_u16_set(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, 18); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * Get the object ID of an extended action |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| * @fixme: This should be auto generated |
| * |
| * If unable to map to known extension, set id to generic "experimenter" |
| */ |
| |
| static void |
| extension_action_id_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| uint32_t exp_id; |
| uint8_t *buf; |
| |
| *id = OF_ACTION_ID_EXPERIMENTER; |
| |
| buf = OF_OBJECT_BUFFER_INDEX(obj, 0); |
| |
| buf_u32_get(buf + OF_ACTION_EXPERIMENTER_ID_OFFSET, &exp_id); |
| |
| switch (exp_id) { |
| case OF_EXPERIMENTER_ID_BSN: { |
| uint32_t subtype; |
| buf_u32_get(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, &subtype); |
| switch (subtype) { |
| case 1: *id = OF_ACTION_ID_BSN_MIRROR; break; |
| case 2: *id = OF_ACTION_ID_BSN_SET_TUNNEL_DST; break; |
| } |
| break; |
| } |
| case OF_EXPERIMENTER_ID_NICIRA: { |
| uint16_t subtype; |
| buf_u16_get(buf + OF_ACTION_EXPERIMENTER_SUBTYPE_OFFSET, &subtype); |
| switch (subtype) { |
| case 18: *id = OF_ACTION_ID_NICIRA_DEC_TTL; break; |
| } |
| break; |
| } |
| } |
| } |
| |
| |
| /** |
| * Get the object ID based on the wire buffer for an action object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| |
| void |
| of_action_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| extension_action_object_id_get(obj, id); |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_ACTION_ITEM_COUNT); |
| |
| *id = of_action_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| /** |
| * Get the object ID based on the wire buffer for an action ID object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| |
| void |
| of_action_id_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| extension_action_id_object_id_get(obj, id); |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_ACTION_ID_ITEM_COUNT); |
| |
| *id = of_action_id_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| /** |
| * @fixme to do when we have instruction extensions |
| * See extension_action above |
| */ |
| |
| static int |
| extension_instruction_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| (void)obj; |
| |
| *id = OF_INSTRUCTION_EXPERIMENTER; |
| |
| return OF_ERROR_NONE; |
| } |
| |
| /** |
| * Get the object ID based on the wire buffer for an instruction object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| void |
| of_instruction_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| extension_instruction_object_id_get(obj, id); |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_INSTRUCTION_ITEM_COUNT); |
| |
| *id = of_instruction_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| |
| /** |
| * @fixme to do when we have queue_prop extensions |
| * See extension_action above |
| */ |
| |
| static void |
| extension_queue_prop_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| (void)obj; |
| |
| *id = OF_QUEUE_PROP_EXPERIMENTER; |
| } |
| |
| /** |
| * Get the object ID based on the wire buffer for an queue_prop object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| void |
| of_queue_prop_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| extension_queue_prop_object_id_get(obj, id); |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_QUEUE_PROP_ITEM_COUNT); |
| |
| *id = of_queue_prop_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| |
| /** |
| * @fixme to do when we have table_feature_prop extensions |
| * See extension_action above |
| */ |
| |
| static void |
| extension_table_feature_prop_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| (void)obj; |
| |
| *id = OF_TABLE_FEATURE_PROP_EXPERIMENTER; |
| } |
| |
| /** |
| * Table feature property object ID determination |
| * |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| void |
| of_table_feature_prop_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| extension_table_feature_prop_object_id_get(obj, id); |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_TABLE_FEATURE_PROP_ITEM_COUNT); |
| |
| *id = of_table_feature_prop_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| /** |
| * Get the object ID based on the wire buffer for meter_band object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| void |
| of_meter_band_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| if (wire_type == OF_EXPERIMENTER_TYPE) { |
| *id = OF_METER_BAND_EXPERIMENTER; |
| return; |
| } |
| |
| ASSERT(wire_type >= 0 && wire_type < OF_METER_BAND_ITEM_COUNT); |
| |
| *id = of_meter_band_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| /** |
| * Get the object ID based on the wire buffer for a hello_elem object |
| * @param obj The object being referenced |
| * @param id Where to store the object ID |
| */ |
| |
| void |
| of_hello_elem_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| int wire_type; |
| |
| of_tlv16_wire_type_get(obj, &wire_type); |
| ASSERT(wire_type >= 0 && wire_type < OF_HELLO_ELEM_ITEM_COUNT); |
| *id = of_hello_elem_type_to_id[obj->version][wire_type]; |
| ASSERT(*id != OF_OBJECT_INVALID); |
| } |
| |
| /**************************************************************** |
| * OXM type/length functions. |
| ****************************************************************/ |
| |
| /* Where does the OXM type-length header lie in the buffer */ |
| #define OXM_HDR_OFFSET 0 |
| |
| /** |
| * Get the OXM header (type-length fields) from the wire buffer |
| * associated with an OXM object |
| * |
| * Will return if error; set hdr to the OXM header |
| */ |
| |
| #define _GET_OXM_TYPE_LEN(obj, tl_p, wbuf) do { \ |
| wbuf = OF_OBJECT_TO_WBUF(obj); \ |
| ASSERT(wbuf != NULL); \ |
| of_wire_buffer_u32_get(wbuf, \ |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OXM_HDR_OFFSET), (tl_p)); \ |
| } while (0) |
| |
| #define _SET_OXM_TYPE_LEN(obj, tl_p, wbuf) do { \ |
| wbuf = OF_OBJECT_TO_WBUF(obj); \ |
| ASSERT(wbuf != NULL); \ |
| of_wire_buffer_u32_set(wbuf, \ |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OXM_HDR_OFFSET), (tl_p)); \ |
| } while (0) |
| |
| /** |
| * Get the length of an OXM object from the wire buffer |
| * @param obj The object whose wire buffer is an OXM type |
| * @param bytes (out) Where length is stored |
| */ |
| |
| void |
| of_oxm_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| uint32_t type_len; |
| of_wire_buffer_t *wbuf; |
| |
| _GET_OXM_TYPE_LEN(obj, &type_len, wbuf); |
| *bytes = OF_OXM_LENGTH_GET(type_len); |
| } |
| |
| /** |
| * Set the length of an OXM object in the wire buffer |
| * @param obj The object whose wire buffer is an OXM type |
| * @param bytes Value to store in wire buffer |
| */ |
| |
| void |
| of_oxm_wire_length_set(of_object_t *obj, int bytes) |
| { |
| uint32_t type_len; |
| of_wire_buffer_t *wbuf; |
| |
| ASSERT(bytes >= 0 && bytes < 256); |
| |
| /* Read-modify-write */ |
| _GET_OXM_TYPE_LEN(obj, &type_len, wbuf); |
| OF_OXM_LENGTH_SET(type_len, bytes); |
| of_wire_buffer_u32_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OXM_HDR_OFFSET), type_len); |
| } |
| |
| /** |
| * Get the object ID of an OXM object based on the wire buffer type |
| * @param obj The object whose wire buffer is an OXM type |
| * @param id (out) Where the ID is stored |
| */ |
| |
| void |
| of_oxm_wire_object_id_get(of_object_t *obj, of_object_id_t *id) |
| { |
| uint32_t type_len; |
| int wire_type; |
| of_wire_buffer_t *wbuf; |
| |
| _GET_OXM_TYPE_LEN(obj, &type_len, wbuf); |
| wire_type = OF_OXM_MASKED_TYPE_GET(type_len); |
| *id = of_oxm_to_object_id(wire_type, obj->version); |
| } |
| |
| /** |
| * Set the wire type of an OXM object based on the object ID passed |
| * @param obj The object whose wire buffer is an OXM type |
| * @param id The object ID mapped to an OXM wire type which is stored |
| */ |
| |
| void |
| of_oxm_wire_object_id_set(of_object_t *obj, of_object_id_t id) |
| { |
| uint32_t type_len; |
| int wire_type; |
| of_wire_buffer_t *wbuf; |
| |
| ASSERT(OF_OXM_VALID_ID(id)); |
| |
| /* Read-modify-write */ |
| _GET_OXM_TYPE_LEN(obj, &type_len, wbuf); |
| wire_type = of_object_to_wire_type(id, obj->version); |
| ASSERT(wire_type >= 0); |
| OF_OXM_MASKED_TYPE_SET(type_len, wire_type); |
| of_wire_buffer_u32_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OXM_HDR_OFFSET), type_len); |
| } |
| |
| |
| |
| #define OF_U16_LEN_LENGTH_OFFSET 0 |
| |
| /** |
| * Get the wire length for an object with a uint16 length as first member |
| * @param obj The object being referenced |
| * @param bytes Pointer to location to store length |
| */ |
| void |
| of_u16_len_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| uint16_t u16; |
| |
| ASSERT(wbuf != NULL); |
| |
| of_wire_buffer_u16_get(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OF_U16_LEN_LENGTH_OFFSET), |
| &u16); |
| |
| *bytes = u16; |
| } |
| |
| /** |
| * Set the wire length for an object with a uint16 length as first member |
| * @param obj The object being referenced |
| * @param bytes The length of the object |
| */ |
| |
| void |
| of_u16_len_wire_length_set(of_object_t *obj, int bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| /* ASSERT(obj is u16-len entry) */ |
| |
| of_wire_buffer_u16_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OF_U16_LEN_LENGTH_OFFSET), |
| bytes); |
| } |
| |
| |
| #define OF_PACKET_QUEUE_LENGTH_OFFSET(ver) \ |
| (((ver) >= OF_VERSION_1_2) ? 8 : 4) |
| |
| /** |
| * Get the wire length for a packet queue object |
| * @param obj The object being referenced |
| * @param bytes Pointer to location to store length |
| * |
| * The length is a uint16 at the offset indicated above |
| */ |
| void |
| of_packet_queue_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| uint16_t u16; |
| int offset; |
| |
| ASSERT(wbuf != NULL); |
| |
| /* ASSERT(obj is packet queue obj) */ |
| offset = OF_PACKET_QUEUE_LENGTH_OFFSET(obj->version); |
| of_wire_buffer_u16_get(wbuf, OF_OBJECT_ABSOLUTE_OFFSET(obj, offset), |
| &u16); |
| |
| *bytes = u16; |
| } |
| |
| /** |
| * Set the wire length for a 1.2 packet queue object |
| * @param obj The object being referenced |
| * @param bytes The length of the object |
| * |
| * The length is a uint16 at the offset indicated above |
| */ |
| |
| void |
| of_packet_queue_wire_length_set(of_object_t *obj, int bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| int offset; |
| |
| ASSERT(wbuf != NULL); |
| |
| /* ASSERT(obj is packet queue obj) */ |
| offset = OF_PACKET_QUEUE_LENGTH_OFFSET(obj->version); |
| of_wire_buffer_u16_set(wbuf, OF_OBJECT_ABSOLUTE_OFFSET(obj, offset), |
| bytes); |
| } |
| |
| /** |
| * Get the wire length for a meter band stats list |
| * @param obj The object being referenced |
| * @param bytes Pointer to location to store length |
| * |
| * Must a meter_stats object as a parent |
| */ |
| |
| void |
| of_list_meter_band_stats_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| ASSERT(obj->parent != NULL); |
| ASSERT(obj->parent->object_id == OF_METER_STATS); |
| |
| /* We're counting on the parent being properly initialized already. |
| * The length is stored in a uint16 at offset 4 of the parent. |
| */ |
| *bytes = obj->parent->length - OF_OBJECT_FIXED_LENGTH(obj->parent); |
| } |
| |
| #define OF_METER_STATS_LENGTH_OFFSET 4 |
| |
| /** |
| * Get/set the wire length for a meter stats object |
| * @param obj The object being referenced |
| * @param bytes Pointer to location to store length |
| * |
| * It's almost a TLV.... |
| */ |
| |
| void |
| of_meter_stats_wire_length_get(of_object_t *obj, int *bytes) |
| { |
| uint16_t val16; |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| of_wire_buffer_u16_get(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OF_METER_STATS_LENGTH_OFFSET), |
| &val16); |
| *bytes = val16; |
| } |
| |
| void |
| of_meter_stats_wire_length_set(of_object_t *obj, int bytes) |
| { |
| of_wire_buffer_t *wbuf = OF_OBJECT_TO_WBUF(obj); |
| ASSERT(wbuf != NULL); |
| |
| of_wire_buffer_u16_set(wbuf, |
| OF_OBJECT_ABSOLUTE_OFFSET(obj, OF_METER_STATS_LENGTH_OFFSET), bytes); |
| } |
| |
| /* |
| * Non-message extension push wire values |
| */ |
| |
| int |
| of_extension_object_wire_push(of_object_t *obj) |
| { |
| of_action_bsn_mirror_t *action_mirror; |
| of_action_id_bsn_mirror_t *action_id_mirror; |
| of_action_bsn_set_tunnel_dst_t *action_set_tunnel_dst; |
| of_action_id_bsn_set_tunnel_dst_t *action_id_set_tunnel_dst; |
| of_action_nicira_dec_ttl_t *action_nicira_dec_ttl; |
| of_action_id_nicira_dec_ttl_t *action_id_nicira_dec_ttl; |
| |
| /* Push exp type, subtype */ |
| switch (obj->object_id) { |
| case OF_ACTION_BSN_MIRROR: |
| action_mirror = (of_action_bsn_mirror_t *)obj; |
| of_action_bsn_mirror_experimenter_set(action_mirror, |
| OF_EXPERIMENTER_ID_BSN); |
| of_action_bsn_mirror_subtype_set(action_mirror, 1); |
| break; |
| case OF_ACTION_ID_BSN_MIRROR: |
| action_id_mirror = (of_action_id_bsn_mirror_t *)obj; |
| of_action_id_bsn_mirror_experimenter_set(action_id_mirror, |
| OF_EXPERIMENTER_ID_BSN); |
| of_action_id_bsn_mirror_subtype_set(action_id_mirror, 1); |
| break; |
| case OF_ACTION_BSN_SET_TUNNEL_DST: |
| action_set_tunnel_dst = (of_action_bsn_set_tunnel_dst_t *)obj; |
| of_action_bsn_set_tunnel_dst_experimenter_set(action_set_tunnel_dst, |
| OF_EXPERIMENTER_ID_BSN); |
| of_action_bsn_set_tunnel_dst_subtype_set(action_set_tunnel_dst, 2); |
| break; |
| case OF_ACTION_ID_BSN_SET_TUNNEL_DST: |
| action_id_set_tunnel_dst = (of_action_id_bsn_set_tunnel_dst_t *)obj; |
| of_action_id_bsn_set_tunnel_dst_experimenter_set(action_id_set_tunnel_dst, |
| OF_EXPERIMENTER_ID_BSN); |
| of_action_id_bsn_set_tunnel_dst_subtype_set(action_id_set_tunnel_dst, 2); |
| break; |
| case OF_ACTION_NICIRA_DEC_TTL: |
| action_nicira_dec_ttl = (of_action_nicira_dec_ttl_t *)obj; |
| of_action_nicira_dec_ttl_experimenter_set(action_nicira_dec_ttl, |
| OF_EXPERIMENTER_ID_NICIRA); |
| of_action_nicira_dec_ttl_subtype_set(action_nicira_dec_ttl, 18); |
| break; |
| case OF_ACTION_ID_NICIRA_DEC_TTL: |
| action_id_nicira_dec_ttl = (of_action_id_nicira_dec_ttl_t *)obj; |
| of_action_id_nicira_dec_ttl_experimenter_set(action_id_nicira_dec_ttl, |
| OF_EXPERIMENTER_ID_NICIRA); |
| of_action_id_nicira_dec_ttl_subtype_set(action_id_nicira_dec_ttl, 18); |
| break; |
| default: |
| break; |
| } |
| |
| return OF_ERROR_NONE; |
| } |