aboutsummaryrefslogtreecommitdiffstats
path: root/openbsc/contrib/gprs/gprs-verify-nu.lua
diff options
context:
space:
mode:
Diffstat (limited to 'openbsc/contrib/gprs/gprs-verify-nu.lua')
-rw-r--r--openbsc/contrib/gprs/gprs-verify-nu.lua59
1 files changed, 0 insertions, 59 deletions
diff --git a/openbsc/contrib/gprs/gprs-verify-nu.lua b/openbsc/contrib/gprs/gprs-verify-nu.lua
deleted file mode 100644
index e44fdd16f..000000000
--- a/openbsc/contrib/gprs/gprs-verify-nu.lua
+++ /dev/null
@@ -1,59 +0,0 @@
--- This script verifies that the N(U) is increasing...
---
-do
- local nu_state_src = {}
-
- local function init_listener()
- -- handle the port as NS over IP
- local udp_port_table = DissectorTable.get("udp.port")
- local gprs_ns_dis = Dissector.get("gprs_ns")
- udp_port_table:add(23000,gprs_ns_dis)
-
- -- we want to look here...
- local llc_sapi_get = Field.new("llcgprs.sapib")
- local llc_nu_get = Field.new("llcgprs.nu")
- local bssgp_tlli_get = Field.new("bssgp.tlli")
-
- local tap = Listener.new("ip", "udp.port == 23000")
- function tap.packet(pinfo,tvb,ip)
- local llc_sapi = llc_sapi_get()
- local llc_nu = llc_nu_get()
- local bssgp_tlli = bssgp_tlli_get()
-
- if not llc_sapi or not llc_nu or not bssgp_tlli then
- return
- end
-
- local ip_src = tostring(ip.ip_src)
- local bssgp_tlli = tostring(bssgp_tlli)
- local llc_nu = tostring(llc_nu)
- local llc_sapi = tostring(llc_sapi)
-
- local src_key = ip_src .. "-" .. bssgp_tlli .. "-" .. llc_sapi
- local last_nu = nu_state_src[src_key]
- if not last_nu then
- -- print("Establishing mapping for " .. src_key)
- nu_state_src[src_key] = llc_nu
- return
- end
-
- local function tohex(number)
- return string.format("0x%x", tonumber(number))
- end
-
- nu_state_src[src_key] = llc_nu
- if tonumber(last_nu) + 1 ~= tonumber(llc_nu) then
- print("JUMP in N(U) on TLLI " .. tohex(bssgp_tlli) .. " and SAPI: " .. llc_sapi .. " src: " .. ip_src)
- print("\t last: " .. last_nu .. " now: " .. llc_nu)
- end
- end
-
- function tap.draw()
- end
-
- function tap.reset()
- end
- end
- init_listener()
-end
-