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Add TFTP/PXE-related DHCP options. patch by Mike Rykowski

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This commit is contained in:
dmiller
2016-02-11 23:50:47 +00:00
parent bfabd9816d
commit 4a85f18938
2 changed files with 8 additions and 6 deletions
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4
CHANGELOG
View File

@@ -1,5 +1,9 @@
# Nmap Changelog ($Id$); -*-text-*-
o [NSE] Added support for DHCP options "TFTP server name" and "Bootfile name"
to dhcp.lua and enabled checking for options with a code above 61 by default.
[Mike Rykowski]
o Removed 6/8, 7/8, and 55/8 networks from the list of "reserved" IP addresses
that Nmap uses to filter -iR randomly generated targets. These address ranges
belong to the U.S. Department of Defense, so users wanting to avoid those

10
nselib/dhcp.lua
View File

@@ -346,6 +346,8 @@ actions[58] = {name="Renewal Time Value", func=read_time,
actions[59] = {name="Rebinding Time Value", func=read_time, default=false}
actions[60] = {name="Class Identifier", func=read_string, default=false}
actions[61] = {name="Client Identifier (client)", func=read_string, default=false}
actions[66] = {name="TFTP Server Name", func=read_string, default=false}
actions[67] = {name="Bootfile Name", func=read_string, default=false}
actions[252]= {name="WPAD", func=read_string, default=false}
--- Does the send/receive, doesn't build/parse anything.
@@ -411,13 +413,9 @@ function dhcp_build(request_type, ip_address, mac_address, options, request_opti
if(request_options == nil) then
-- Request the defaults, or there's no verbosity; otherwise, request everything!
request_options = ''
for i = 1, 61, 1 do
if(nmap.verbosity() > 0) then
for i,v in pairs(actions) do
if(v.default or nmap.verbosity() > 0) then
request_options = request_options .. string.char(i)
else
if(actions[i] and actions[i].default) then
request_options = request_options .. string.char(i)
end
end
end
end