diff --git a/src/python/loxi/of12/const.py b/src/python/loxi/of12/const.py
index 59aa4c5..0833b90 100644
--- a/src/python/loxi/of12/const.py
+++ b/src/python/loxi/of12/const.py
@@ -187,6 +187,29 @@
     12: 'OFPBRC_BAD_PACKET',
 }
 
+# Identifiers from group ofp_bsn_tcp_flag
+OFP_BSN_TCP_FLAG_FIN = 1
+OFP_BSN_TCP_FLAG_SYN = 2
+OFP_BSN_TCP_FLAG_RST = 4
+OFP_BSN_TCP_FLAG_PSH = 8
+OFP_BSN_TCP_FLAG_ACK = 16
+OFP_BSN_TCP_FLAG_URG = 32
+OFP_BSN_TCP_FLAG_ECE = 64
+OFP_BSN_TCP_FLAG_CWR = 128
+OFP_BSN_TCP_FLAG_NS = 256
+
+ofp_bsn_tcp_flag_map = {
+    1: 'OFP_BSN_TCP_FLAG_FIN',
+    2: 'OFP_BSN_TCP_FLAG_SYN',
+    4: 'OFP_BSN_TCP_FLAG_RST',
+    8: 'OFP_BSN_TCP_FLAG_PSH',
+    16: 'OFP_BSN_TCP_FLAG_ACK',
+    32: 'OFP_BSN_TCP_FLAG_URG',
+    64: 'OFP_BSN_TCP_FLAG_ECE',
+    128: 'OFP_BSN_TCP_FLAG_CWR',
+    256: 'OFP_BSN_TCP_FLAG_NS',
+}
+
 # Identifiers from group ofp_bsn_vport_l2gre_flags
 OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID = 1
 OF_BSN_VPORT_L2GRE_DSCP_ASSIGN = 2
diff --git a/src/python/loxi/of12/oxm.py b/src/python/loxi/of12/oxm.py
index 978529a..46ec9ec 100644
--- a/src/python/loxi/of12/oxm.py
+++ b/src/python/loxi/of12/oxm.py
@@ -1161,6 +1161,98 @@
 
 oxm.subtypes[197384] = bsn_lag_id_masked
 
+class bsn_tcp_flags(oxm):
+    type_len = 204802
+
+    def __init__(self, value=None):
+        if value != None:
+            self.value = value
+        else:
+            self.value = 0
+        return
+
+    def pack(self):
+        packed = []
+        packed.append(struct.pack("!L", self.type_len))
+        packed.append(struct.pack("!H", self.value))
+        return ''.join(packed)
+
+    @staticmethod
+    def unpack(reader):
+        obj = bsn_tcp_flags()
+        _type_len = reader.read("!L")[0]
+        assert(_type_len == 204802)
+        obj.value = reader.read("!H")[0]
+        return obj
+
+    def __eq__(self, other):
+        if type(self) != type(other): return False
+        if self.value != other.value: return False
+        return True
+
+    def pretty_print(self, q):
+        q.text("bsn_tcp_flags {")
+        with q.group():
+            with q.indent(2):
+                q.breakable()
+                q.text("value = ");
+                q.text("%#x" % self.value)
+            q.breakable()
+        q.text('}')
+
+oxm.subtypes[204802] = bsn_tcp_flags
+
+class bsn_tcp_flags_masked(oxm):
+    type_len = 205060
+
+    def __init__(self, value=None, value_mask=None):
+        if value != None:
+            self.value = value
+        else:
+            self.value = 0
+        if value_mask != None:
+            self.value_mask = value_mask
+        else:
+            self.value_mask = 0
+        return
+
+    def pack(self):
+        packed = []
+        packed.append(struct.pack("!L", self.type_len))
+        packed.append(struct.pack("!H", self.value))
+        packed.append(struct.pack("!H", self.value_mask))
+        return ''.join(packed)
+
+    @staticmethod
+    def unpack(reader):
+        obj = bsn_tcp_flags_masked()
+        _type_len = reader.read("!L")[0]
+        assert(_type_len == 205060)
+        obj.value = reader.read("!H")[0]
+        obj.value_mask = reader.read("!H")[0]
+        return obj
+
+    def __eq__(self, other):
+        if type(self) != type(other): return False
+        if self.value != other.value: return False
+        if self.value_mask != other.value_mask: return False
+        return True
+
+    def pretty_print(self, q):
+        q.text("bsn_tcp_flags_masked {")
+        with q.group():
+            with q.indent(2):
+                q.breakable()
+                q.text("value = ");
+                q.text("%#x" % self.value)
+                q.text(","); q.breakable()
+                q.text("value_mask = ");
+                q.text("%#x" % self.value_mask)
+            q.breakable()
+        q.text('}')
+
+oxm.subtypes[205060] = bsn_tcp_flags_masked
+
 class bsn_udf0(oxm):
     type_len = 200708