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DOCSIS: REG-ACK: do not show TLV Data if not present

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Change-Id: I655b5b9eb75d339afbd8b9184ef85ffb7dd33774
Reviewed-on: https://code.wireshark.org/review/33681
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
This commit is contained in:
Bruno Verstuyft 2019-06-20 15:18:42 +02:00 committed by Martin Kaiser
parent 44594aeb0d
commit f9225faa87
1 changed files with 6 additions and 2 deletions
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8
epan/dissectors/packet-docsis-macmgmt.c
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@ -3949,8 +3949,12 @@ dissect_regack (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* da
val_to_str_ext (response, &docsis_conf_code_ext, "%d"));
/* Call Dissector for Appendix C TLV's */
next_tvb = tvb_new_subset_remaining (tvb, 3);
call_dissector (docsis_tlv_handle, next_tvb, pinfo, regack_tree);
if(tvb_reported_length_remaining(tvb, 3) > 0 )
{
next_tvb = tvb_new_subset_remaining (tvb, 3);
call_dissector (docsis_tlv_handle, next_tvb, pinfo, regack_tree);
}
return tvb_captured_length(tvb);
}