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-rw-r--r--external/construct/protocols/layer2/mtp2.py21
1 files changed, 21 insertions, 0 deletions
diff --git a/external/construct/protocols/layer2/mtp2.py b/external/construct/protocols/layer2/mtp2.py
new file mode 100644
index 0000000..1cbe3a0
--- /dev/null
+++ b/external/construct/protocols/layer2/mtp2.py
@@ -0,0 +1,21 @@
+"""
+Message Transport Part 2 (SS7 protocol stack)
+(untested)
+"""
+from construct import *
+
+
+mtp2_header = BitStruct("mtp2_header",
+ Octet("flag1"),
+ Bits("bsn", 7),
+ Bit("bib"),
+ Bits("fsn", 7),
+ Bit("sib"),
+ Octet("length"),
+ Octet("service_info"),
+ Octet("signalling_info"),
+ Bits("crc", 16),
+ Octet("flag2"),
+)
+
+