move openbsc/* to repos root

This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7

1 files changed, 46 insertions, 0 deletions

diff --git a/contrib/gprs/gprs-split-trace-by-tlli.lua b/contrib/gprs/gprs-split-trace-by-tlli.lua
new file mode 100644
index 000000000..018c377c5
--- /dev/null
+++ b/contrib/gprs/gprs-split-trace-by-tlli.lua
@@ -0,0 +1,46 @@
+-- Create a file named by_ip/''ip_addess''.cap with all ip traffic of each ip host. (works for tshark only)
+-- Dump files are created for both source and destination hosts
+do
+	local dir = "by_tlli"
+	local dumpers = {}
+	local function init_listener()
+		local udp_port_table = DissectorTable.get("udp.port")
+		local gprs_ns_dis = Dissector.get("gprs_ns")
+		udp_port_table:add(23000,gprs_ns_dis)
+
+		local field_tlli = Field.new("bssgp.tlli")
+		local tap = Listener.new("ip", "udp.port == 23000")
+
+		-- we will be called once for every IP Header.
+		-- If there's more than one IP header in a given packet we'll dump the packet once per every header
+		function tap.packet(pinfo,tvb,ip)
+			local tlli = field_tlli()
+			if not tlli then
+				return
+			end
+
+			local tlli_str = tostring(tlli)
+			tlli_dmp = dumpers[tlli_str]
+			if not tlli_dmp then
+				local tlli_hex = string.format("0x%x", tonumber(tlli_str))
+				print("Creating dump for TLLI " .. tlli_hex)
+				tlli_dmp = Dumper.new_for_current(dir .. "/" .. tlli_hex .. ".pcap")
+				dumpers[tlli_str] = tlli_dmp
+			end
+			tlli_dmp:dump_current()
+			tlli_dmp:flush()
+		end
+		function tap.draw()
+			for tlli,dumper in pairs(dumpers) do
+				 dumper:flush()
+			end
+		end
+		function tap.reset()
+			for tlli,dumper in pairs(dumpers) do
+				 dumper:close()
+			end
+			dumpers = {}
+		end
+	end
+	init_listener()
+end