diff options
Diffstat (limited to 'plugins/docsis/packet-type35ucd.c')
| -rw-r--r-- | plugins/docsis/packet-type35ucd.c | 991 |
1 files changed, 450 insertions, 541 deletions
diff --git a/plugins/docsis/packet-type35ucd.c b/plugins/docsis/packet-type35ucd.c index 251a1732ee..737d78beb7 100644 --- a/plugins/docsis/packet-type35ucd.c +++ b/plugins/docsis/packet-type35ucd.c @@ -273,15 +273,15 @@ static const value_string last_cw_len_vals[] = { }; static const value_string max_scheduled_codes_vals[] = { - {1, "Enabled."}, - {2, "Disabled."}, + {1, "Enabled"}, + {2, "Disabled"}, {0, NULL} }; static const value_string ranging_required[] = { - {0, "No ranging required."}, - {1, "Unicast initial ranging required."}, - {2, "Broadcast initial ranging required."}, + {0, "No ranging required"}, + {1, "Unicast initial ranging required"}, + {2, "Broadcast initial ranging required"}, {0, NULL} }; @@ -289,20 +289,20 @@ static const value_string ranging_required[] = { static int dissect_type35ucd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_) { - guint16 pos, endtlvpos; - guint8 type, length; - guint8 tlvlen, tlvtype; - proto_tree *type35ucd_burst_tree; - proto_item *type35ucd_burst_item; - proto_tree *type35ucd_tree; - proto_item *type35ucd_item; - proto_tree *type35tlv_tree; - proto_item *type35tlv_item; - guint16 len; - guint8 upchid, symrate; + guint16 pos, endtlvpos, subpos; + guint8 type; + guint32 upchid, length, tlvlen; + guint8 tlvtype; + proto_tree *type35ucd_tree, *type35tlv_tree, *type35ucd_burst_tree; + proto_item *type35ucd_item, *type35tlv_item, *type35tlv_len_item, *type35ucd_burst_item, *type35ucd_burst_len_item; + guint8 symrate; - len = tvb_reported_length(tvb); - upchid = tvb_get_guint8 (tvb, 0); + type35ucd_item = proto_tree_add_item (tree, proto_docsis_type35ucd, tvb, 0, -1, ENC_NA); + type35ucd_tree = proto_item_add_subtree (type35ucd_item, ett_docsis_type35ucd); + proto_tree_add_item_ret_uint (type35ucd_tree, hf_docsis_type35ucd_upstream_chid, tvb, 0, 1, ENC_BIG_ENDIAN, &upchid); + proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_config_ch_cnt, tvb, 1, 1, ENC_BIG_ENDIAN); + proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_mini_slot_size, tvb, 2, 1, ENC_BIG_ENDIAN); + proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_down_chid, tvb, 3, 1, ENC_BIG_ENDIAN); /* if the upstream Channel ID is 0 then this is for Telephony Return) */ if (upchid > 0) @@ -314,534 +314,443 @@ dissect_type35ucd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* "Type 35 UCD Message: Channel ID = %u (Telephony Return)", upchid); - type35ucd_item = - proto_tree_add_protocol_format (tree, proto_docsis_type35ucd, tvb, 0, - tvb_captured_length(tvb), - "UCD Message (Type 35)"); - type35ucd_tree = proto_item_add_subtree (type35ucd_item, ett_docsis_type35ucd); - proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_upstream_chid, tvb, 0, 1, - ENC_BIG_ENDIAN); - proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_config_ch_cnt, tvb, 1, 1, - ENC_BIG_ENDIAN); - proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_mini_slot_size, tvb, 2, 1, - ENC_BIG_ENDIAN); - proto_tree_add_item (type35ucd_tree, hf_docsis_type35ucd_down_chid, tvb, 3, 1, - ENC_BIG_ENDIAN); - pos = 4; - while (pos < len) - { - type = tvb_get_guint8 (tvb, pos); - type35tlv_tree = proto_tree_add_subtree(type35ucd_tree, tvb, pos, -1, + while (tvb_reported_length_remaining(tvb, pos) > 0) + { + type = tvb_get_guint8 (tvb, pos); + type35tlv_tree = proto_tree_add_subtree(type35ucd_tree, tvb, pos, -1, ett_docsis_type35tlv, &type35tlv_item, val_to_str(type, channel_tlv_vals, "Unknown TLV (%u)")); - proto_tree_add_uint (type35tlv_tree, hf_docsis_type35ucd_type, - tvb, pos, 1, type); - pos++; - length = tvb_get_guint8 (tvb, pos); - proto_tree_add_uint (type35tlv_tree, hf_docsis_type35ucd_length, - tvb, pos, 1, length); - pos++; - proto_item_set_len(type35tlv_item, length + 2); - switch (type) + proto_tree_add_uint (type35tlv_tree, hf_docsis_type35ucd_type, tvb, pos, 1, type); + pos++; + type35tlv_len_item = proto_tree_add_item_ret_uint (type35tlv_tree, hf_docsis_type35ucd_length, tvb, pos, 1, ENC_NA, &length); + pos++; + proto_item_set_len(type35tlv_item, length + 2); + + switch (type) + { + case type35ucd_SYMBOL_RATE: + if (length == 1) + { + symrate = tvb_get_guint8 (tvb, pos); + proto_tree_add_uint (type35tlv_tree, hf_docsis_type35ucd_symbol_rate, tvb, pos, length, symrate * 160); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_FREQUENCY: + if (length == 4) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_frequency, tvb, pos, length, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_PREAMBLE: + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_preamble_pat, tvb, pos, length, ENC_NA); + break; + case type35ucd_EXT_PREAMBLE: + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_ext_preamble, tvb, pos, length, ENC_NA); + break; + case type35ucd_SCDMA_MODE_ENABLE: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_mode_enable, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_SPREADING_INTERVAL: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_spreading_interval, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_CODES_PER_MINI_SLOT: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_codes_per_mini_slot, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_ACTIVE_CODES: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_active_codes, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_CODE_HOPPING_SEED: + if (length == 2) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_code_hopping_seed, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_US_RATIO_NUM: + if (length == 2) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_us_ratio_num, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_US_RATIO_DENOM: + if (length == 2) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_us_ratio_denom, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_TIMESTAMP_SNAPSHOT: + if (length == 9) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_timestamp_snapshot, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_MAINTAIN_POWER_SPECTRAL_DENSITY: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_maintain_power_spectral_density, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_RANGING_REQUIRED: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_ranging_required, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_MAX_SCHEDULED_CODES: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_max_scheduled_codes, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_RANGING_HOLD_OFF_PRIORITY_FIELD: + if (length == 4) + { + static const int * ucd_rnghoff[] = { + &hf_docsis_type35ucd_rnghoff_cm, + &hf_docsis_type35ucd_rnghoff_erouter, + &hf_docsis_type35ucd_rnghoff_emta, + &hf_docsis_type35ucd_rnghoff_estb, + &hf_docsis_type35ucd_rnghoff_rsvd, + &hf_docsis_type35ucd_rnghoff_id_ext, + NULL + }; + + proto_tree_add_bitmask_list(type35tlv_tree, tvb, pos, length, ucd_rnghoff, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_RANGING_CHANNEL_CLASS_ID: + if (length == 4) + { + static const int * ucd_chan_class_id[] = { + &hf_docsis_type35ucd_chan_class_id_cm, + &hf_docsis_type35ucd_chan_class_id_erouter, + &hf_docsis_type35ucd_chan_class_id_emta, + &hf_docsis_type35ucd_chan_class_id_estb, + &hf_docsis_type35ucd_chan_class_id_rsvd, + &hf_docsis_type35ucd_chan_class_id_id_ext, + NULL + }; + + proto_tree_add_bitmask_list(type35tlv_tree, tvb, pos, length, ucd_chan_class_id, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_SELECTION_ACTIVE_CODES_AND_CODE_HOPPING: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_active_code_hopping, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_SELECTION_STRING_FOR_ACTIVE_CODES: + if (length == 16) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_selection_active_codes, tvb, pos, length, ENC_NA); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_HIGHER_UCD_FOR_SAME_UCID: + if (length == 1) + { + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_higher_ucd_for_same_ucid, tvb, pos, length, ENC_NA); + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_higher_ucd_for_same_ucid_resv, tvb, pos, length, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35tlv_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_BURST_DESCR5: + endtlvpos = pos + length; + subpos = pos; + proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_iuc, tvb, subpos++, 1, ENC_BIG_ENDIAN); + while (subpos < endtlvpos) + { + tlvtype = tvb_get_guint8 (tvb, subpos); + type35ucd_burst_tree = proto_tree_add_subtree (type35tlv_tree, tvb, subpos, -1, + ett_docsis_type35_burst_tlv, &type35ucd_burst_item, + val_to_str(tlvtype, burst_tlv_vals, + "Unknown TLV (%u)")); + proto_tree_add_uint (type35ucd_burst_tree, hf_docsis_type35ucd_burst_type, tvb, subpos, 1, tlvtype); + subpos++; + type35ucd_burst_len_item = proto_tree_add_item_ret_uint (type35ucd_burst_tree, hf_docsis_type35ucd_burst_length, tvb, subpos, 1, ENC_NA, &tlvlen); + subpos++; + proto_item_set_len(type35ucd_burst_item, tlvlen + 2); + switch (tlvtype) { - case type35ucd_SYMBOL_RATE: - if (length == 1) - { - symrate = tvb_get_guint8 (tvb, pos); - proto_tree_add_uint (type35tlv_tree, hf_docsis_type35ucd_symbol_rate, - tvb, pos, length, symrate * 160); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_FREQUENCY: - if (length == 4) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_frequency, tvb, - pos, length, ENC_BIG_ENDIAN); - pos = pos + length; - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_PREAMBLE: - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_preamble_pat, tvb, - pos, length, ENC_NA); - pos = pos + length; - break; - case type35ucd_EXT_PREAMBLE: - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_ext_preamble, tvb, - pos, length, ENC_NA); - pos = pos + length; - break; - case type35ucd_SCDMA_MODE_ENABLE: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_mode_enable, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_SPREADING_INTERVAL: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_spreading_interval, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_CODES_PER_MINI_SLOT: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_codes_per_mini_slot, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_ACTIVE_CODES: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_active_codes, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_CODE_HOPPING_SEED: - if (length == 2) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_code_hopping_seed, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_US_RATIO_NUM: - if (length == 2) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_us_ratio_num, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_US_RATIO_DENOM: - if (length == 2) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_us_ratio_denom, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_TIMESTAMP_SNAPSHOT: - if (length == 9) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_timestamp_snapshot, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_MAINTAIN_POWER_SPECTRAL_DENSITY: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_maintain_power_spectral_density, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_RANGING_REQUIRED: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_ranging_required, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_MAX_SCHEDULED_CODES: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_max_scheduled_codes, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_RANGING_HOLD_OFF_PRIORITY_FIELD: - if (length == 4) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_cm, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_erouter, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_emta, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_estb, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_rsvd, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_rnghoff_id_ext, tvb, - pos, length, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_RANGING_CHANNEL_CLASS_ID: - if (length == 4) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_cm, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_erouter, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_emta, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_estb, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_rsvd, tvb, - pos, length, ENC_BIG_ENDIAN); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_chan_class_id_id_ext, tvb, - pos, length, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_SELECTION_ACTIVE_CODES_AND_CODE_HOPPING: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_active_code_hopping, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_SCDMA_SELECTION_STRING_FOR_ACTIVE_CODES: - if (length == 16) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_scdma_selection_active_codes, - tvb, pos, length, ENC_NA); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_HIGHER_UCD_FOR_SAME_UCID: - if (length == 1) - { - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_higher_ucd_for_same_ucid, - tvb, pos, length, ENC_NA); - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_higher_ucd_for_same_ucid_resv, tvb, - pos, length, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - pos = pos + length; - break; - case type35ucd_BURST_DESCR5: - proto_tree_add_item (type35tlv_tree, hf_docsis_type35ucd_iuc, tvb, - pos++, 1, ENC_BIG_ENDIAN); - endtlvpos = pos + length - 1; - while (pos < endtlvpos) - { - tlvtype = tvb_get_guint8 (tvb, pos); - type35ucd_burst_tree = proto_tree_add_subtree (type35tlv_tree, tvb, pos, -1, - ett_docsis_type35_burst_tlv, &type35ucd_burst_item, - val_to_str(tlvtype, burst_tlv_vals, - "Unknown TLV (%u)")); - proto_tree_add_uint (type35ucd_burst_tree, hf_docsis_type35ucd_burst_type, tvb, pos, 1, tlvtype); - pos++; - tlvlen = tvb_get_guint8 (tvb, pos); - proto_tree_add_uint (type35ucd_burst_tree, hf_docsis_type35ucd_burst_length, tvb, pos, 1, tlvlen); - pos++; - proto_item_set_len(type35ucd_burst_item, tlvlen + 2); - switch (tlvtype) - { - case type35ucd_MODULATION: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_mod_type, tvb, - pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_DIFF_ENCODING: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_diff_encoding, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_PREAMBLE_LEN: - if (tlvlen == 2) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_preamble_len, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_PREAMBLE_VAL_OFF: - if (tlvlen == 2) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_preamble_val_off, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_FEC: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_fec, tvb, pos, - tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_FEC_CODEWORD: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_fec_codeword, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_SCRAMBLER_SEED: - if (tlvlen == 2) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_scrambler_seed, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_MAX_BURST: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_max_burst, tvb, - pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_GUARD_TIME: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_guard_time, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_LAST_CW_LEN: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_last_cw_len, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_SCRAMBLER_ONOFF: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_burst_scrambler_onoff, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_RS_INT_DEPTH: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_rs_int_depth, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_RS_INT_BLOCK: - if (tlvlen == 2) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_rs_int_block, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_PREAMBLE_TYPE: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_preamble_type, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_SCMDA_SCRAMBLER_ONOFF: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_scdma_scrambler_onoff, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_SCDMA_CODES_PER_SUBFRAME: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_scdma_codes_per_subframe, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_SCDMA_FRAMER_INT_STEP_SIZE: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_scdma_framer_int_step_size, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case type35ucd_TCM_ENABLED: - if (tlvlen == 1) - { - proto_tree_add_item (type35ucd_burst_tree, - hf_docsis_tcm_enabled, - tvb, pos, tlvlen, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - default: - expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvtype_bad, "Unknown TLV type: %u", tlvtype); - } /* switch(tlvtype) */ - pos = pos + tlvlen; - } /* while (pos < endtlvpos) */ - break; - default: - expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvtype_bad, "Unknown TLV type: %u", type); - pos = pos + length; - } /* switch(type) */ - } /* while (pos < len) */ - return len; + case type35ucd_MODULATION: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_mod_type, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_DIFF_ENCODING: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_diff_encoding, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_PREAMBLE_LEN: + if (tlvlen == 2) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_preamble_len, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_PREAMBLE_VAL_OFF: + if (tlvlen == 2) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_preamble_val_off, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_FEC: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_fec, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_FEC_CODEWORD: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_fec_codeword, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCRAMBLER_SEED: + if (tlvlen == 2) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_scrambler_seed, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_MAX_BURST: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_max_burst, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo,type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_GUARD_TIME: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_guard_time, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_LAST_CW_LEN: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_last_cw_len, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCRAMBLER_ONOFF: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_burst_scrambler_onoff, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_RS_INT_DEPTH: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_rs_int_depth, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_RS_INT_BLOCK: + if (tlvlen == 2) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_rs_int_block, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_PREAMBLE_TYPE: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_preamble_type, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCMDA_SCRAMBLER_ONOFF: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_scdma_scrambler_onoff, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_CODES_PER_SUBFRAME: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_scdma_codes_per_subframe, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_SCDMA_FRAMER_INT_STEP_SIZE: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_scdma_framer_int_step_size, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + case type35ucd_TCM_ENABLED: + if (tlvlen == 1) + { + proto_tree_add_item (type35ucd_burst_tree, hf_docsis_tcm_enabled, tvb, subpos, tlvlen, ENC_BIG_ENDIAN); + } + else + { + expert_add_info_format(pinfo, type35ucd_burst_len_item, &ei_docsis_type35ucd_tlvlen_bad, "Wrong TLV length: %u", length); + } + break; + default: + expert_add_info_format(pinfo, type35ucd_burst_item, &ei_docsis_type35ucd_tlvtype_bad, "Unknown TLV type: %u", tlvtype); + } /* switch(tlvtype) */ + + subpos += tlvlen; + } /* while (pos < endtlvpos) */ + break; + default: + expert_add_info_format(pinfo, type35tlv_item, &ei_docsis_type35ucd_tlvtype_bad, "Unknown TLV type: %u", type); + } /* switch(type) */ + + pos += length; + } /* while (tvb_reported_length_remaining(tvb, pos) > 0) */ + + return tvb_captured_length(tvb); } /* Register the protocol with Wireshark */ |