--[[ IPv6 postdissector that fully expands all IPv6 addresses. Copyright (C) 2020 Christopher Maynard This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.--]]-------------------------------------------------------------------------local ipv6_post_info ={ version = "1.2", author = "Christopher Maynard", description = "IPv6 Postdissector that fully expands all IPv6 addresses",}set_plugin_info(ipv6_post_info)local ipv6_post = Proto("IPv6Post", "IPv6 Postdissector")local pf = { ipv6_src_expanded = ProtoField.string("ipv6_post.src_expanded", "Source Address (Expanded)"), ipv6_dst_expanded = ProtoField.string("ipv6_post.dst_expanded", "Destination Address (Expanded)"), ipv6_addr_expanded = ProtoField.string("ipv6_post.addr_expanded", "Source or Destination Address (Expanded)"),}-- Register protocol fieldsipv6_post.fields = pflocal ipv6_src = Field.new("ipv6.src")local ipv6_dst = Field.new("ipv6.dst")local ipv6_addr = Field.new("ipv6.addr")function ipv6_post.dissector(tvbuf, pinfo, tree) local ipv6_src_ex = {ipv6_src()} local ipv6_dst_ex = {ipv6_dst()} local ipv6_addr_ex = {ipv6_addr()} if ipv6_src_ex ~= nil then local ipv6_post_tree = tree:add(ipv6_post, "IPv6 Postdissector") local ipv6_expanded local i for i in pairs(ipv6_src_ex) do ipv6_tvb = ipv6_src_ex[i].range() ipv6_expanded = string.format("%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x", ipv6_tvb(0, 2):uint(), ipv6_tvb(2, 2):uint(), ipv6_tvb(4, 2):uint(), ipv6_tvb(6, 2):uint(), ipv6_tvb(8, 2):uint(), ipv6_tvb(10, 2):uint(), ipv6_tvb(12, 2):uint(), ipv6_tvb(14, 2):uint()) ipv6_post_tree:add(pf.ipv6_src_expanded, ipv6_expanded) end for i in pairs(ipv6_dst_ex) do ipv6_tvb = ipv6_dst_ex[i].range() ipv6_expanded = string.format("%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x", ipv6_tvb(0, 2):uint(), ipv6_tvb(2, 2):uint(), ipv6_tvb(4, 2):uint(), ipv6_tvb(6, 2):uint(), ipv6_tvb(8, 2):uint(), ipv6_tvb(10, 2):uint(), ipv6_tvb(12, 2):uint(), ipv6_tvb(14, 2):uint()) ipv6_post_tree:add(pf.ipv6_dst_expanded, ipv6_expanded) end for i in pairs(ipv6_addr_ex) do ipv6_tvb = ipv6_addr_ex[i].range() ipv6_expanded = string.format("%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x", ipv6_tvb(0, 2):uint(), ipv6_tvb(2, 2):uint(), ipv6_tvb(4, 2):uint(), ipv6_tvb(6, 2):uint(), ipv6_tvb(8, 2):uint(), ipv6_tvb(10, 2):uint(), ipv6_tvb(12, 2):uint(), ipv6_tvb(14, 2):uint()) ipv6_post_tree:add(pf.ipv6_addr_expanded, ipv6_expanded) end endendregister_postdissector(ipv6_post)
