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pfcp.py
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pfcp.py
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# SPDX-License-Identifier: GPL-2.0-or-later
# This file is part of Scapy
# See https://scapy.net/ for more information
# Copyright (C) 2019 Travelping GmbH <info@travelping.com>
"""
3GPP TS 29.244
"""
# scapy.contrib.description = 3GPP Packet Forwarding Control Protocol
# scapy.contrib.status = loads
import struct
from scapy.compat import chb, orb
from scapy.error import warning
from scapy.fields import Field, BitEnumField, BitField, ByteEnumField, \
ShortEnumField, ByteField, IntField, LongField, \
ConditionalField, FieldLenField, BitFieldLenField, FieldListField, \
IPField, MACField, PacketListField, ShortField, \
StrLenField, StrField, XBitField, XByteField, XIntField, XLongField, \
ThreeBytesField, SignedLongField, SignedIntField, MultipleTypeField
from scapy.layers.inet import UDP
from scapy.layers.inet6 import IP6Field
from scapy.data import IANA_ENTERPRISE_NUMBERS
from scapy.packet import bind_layers, bind_bottom_up, \
Packet, Raw
from scapy.volatile import RandNum, RandBin
PFCPmessageType = {
1: "heartbeat_request",
2: "heartbeat_response",
3: "pfd_management_request",
4: "pfd_management_response",
5: "association_setup_request",
6: "association_setup_response",
7: "association_update_request",
8: "association_update_response",
9: "association_release_request",
10: "association_release_response",
11: "version_not_supported_response",
12: "node_report_request",
13: "node_report_response",
14: "session_set_deletion_request",
15: "session_set_deletion_response",
50: "session_establishment_request",
51: "session_establishment_response",
52: "session_modification_request",
53: "session_modification_response",
54: "session_deletion_request",
55: "session_deletion_response",
56: "session_report_request",
57: "session_report_response",
}
IEType = {
0: "Reserved",
1: "Create PDR",
2: "PDI",
3: "Create FAR",
4: "Forwarding Parameters",
5: "Duplicating Parameters",
6: "Create URR",
7: "Create QER",
8: "Created PDR",
9: "Update PDR",
10: "Update FAR",
11: "Update Forwarding Parameters",
12: "Update BAR (PFCP Session Report Response)",
13: "Update URR",
14: "Update QER",
15: "Remove PDR",
16: "Remove FAR",
17: "Remove URR",
18: "Remove QER",
19: "Cause",
20: "Source Interface",
21: "F-TEID",
22: "Network Instance",
23: "SDF Filter",
24: "Application ID",
25: "Gate Status",
26: "MBR",
27: "GBR",
28: "QER Correlation ID",
29: "Precedence",
30: "Transport Level Marking",
31: "Volume Threshold",
32: "Time Threshold",
33: "Monitoring Time",
34: "Subsequent Volume Threshold",
35: "Subsequent Time Threshold",
36: "Inactivity Detection Time",
37: "Reporting Triggers",
38: "Redirect Information",
39: "Report Type",
40: "Offending IE",
41: "Forwarding Policy",
42: "Destination Interface",
43: "UP Function Features",
44: "Apply Action",
45: "Downlink Data Service Information",
46: "Downlink Data Notification Delay",
47: "DL Buffering Duration",
48: "DL Buffering Suggested Packet Count",
49: "PFCPSMReq-Flags",
50: "PFCPSRRsp-Flags",
51: "Load Control Information",
52: "Sequence Number",
53: "Metric",
54: "Overload Control Information",
55: "Timer",
56: "PDR ID",
57: "F-SEID",
58: "Application ID's PFDs",
59: "PFD context",
60: "Node ID",
61: "PFD contents",
62: "Measurement Method",
63: "Usage Report Trigger",
64: "Measurement Period",
65: "FQ-CSID",
66: "Volume Measurement",
67: "Duration Measurement",
68: "Application Detection Information",
69: "Time of First Packet",
70: "Time of Last Packet",
71: "Quota Holding Time",
72: "Dropped DL Traffic Threshold",
73: "Volume Quota",
74: "Time Quota",
75: "Start Time",
76: "End Time",
77: "Query URR",
78: "Usage Report (Session Modification Response)",
79: "Usage Report (Session Deletion Response)",
80: "Usage Report (Session Report Request)",
81: "URR ID",
82: "Linked URR ID",
83: "Downlink Data Report",
84: "Outer Header Creation",
85: "Create BAR",
86: "Update BAR (Session Modification Request)",
87: "Remove BAR",
88: "BAR ID",
89: "CP Function Features",
90: "Usage Information",
91: "Application Instance ID",
92: "Flow Information",
93: "UE IP Address",
94: "Packet Rate",
95: "Outer Header Removal",
96: "Recovery Time Stamp",
97: "DL Flow Level Marking",
98: "Header Enrichment",
99: "Error Indication Report",
100: "Measurement Information",
101: "Node Report Type",
102: "User Plane Path Failure Report",
103: "Remote GTP-U Peer",
104: "UR-SEQN",
105: "Update Duplicating Parameters",
106: "Activate Predefined Rules",
107: "Deactivate Predefined Rules",
108: "FAR ID",
109: "QER ID",
110: "OCI Flags",
111: "PFCP Association Release Request",
112: "Graceful Release Period",
113: "PDN Type",
114: "Failed Rule ID",
115: "Time Quota Mechanism",
116: "User Plane IP Resource Information",
117: "User Plane Inactivity Timer",
118: "Aggregated URRs",
119: "Multiplier",
120: "Aggregated URR ID",
121: "Subsequent Volume Quota",
122: "Subsequent Time Quota",
123: "RQI",
124: "QFI",
125: "Query URR Reference",
126: "Additional Usage Reports Information",
127: "Create Traffic Endpoint",
128: "Created Traffic Endpoint",
129: "Update Traffic Endpoint",
130: "Remove Traffic Endpoint",
131: "Traffic Endpoint ID",
132: "Ethernet Packet Filter",
133: "MAC Address",
134: "C-TAG",
135: "S-TAG",
136: "Ethertype",
137: "Proxying",
138: "Ethernet Filter ID",
139: "Ethernet Filter Properties",
140: "Suggested Buffering Packets Count",
141: "User ID",
142: "Ethernet PDU Session Information",
143: "Ethernet Traffic Information",
144: "MAC Addresses Detected",
145: "MAC Addresses Removed",
146: "Ethernet Inactivity Timer",
147: "Additional Monitoring Time",
148: "Event Quota",
149: "Event Threshold",
150: "Subsequent Event Quota",
151: "Subsequent Event Threshold",
152: "Trace Information",
153: "Framed-Route",
154: "Framed-Routing",
155: "Framed-IPv6-Route",
156: "Event Time Stamp",
157: "Averaging Window",
158: "Paging Policy Indicator",
159: "APN/DNN",
160: "3GPP Interface Type",
}
CauseValues = {
0: "Reserved",
1: "Request accepted",
64: "Request rejected",
65: "Session context not found",
66: "Mandatory IE missing",
67: "Conditional IE missing",
68: "Invalid length",
69: "Mandatory IE incorrect",
70: "Invalid Forwarding Policy",
71: "Invalid F-TEID allocation option",
72: "No established Sx Association",
73: "Rule creation/modification Failure",
74: "PFCP entity in congestion",
75: "No resources available",
76: "Service not supported",
77: "System failure",
}
SourceInterface = {
0: "Access",
1: "Core",
2: "SGi-LAN/N6-LAN",
3: "CP-function",
}
DestinationInterface = {
0: "Access",
1: "Core",
2: "SGi-LAN/N6-LAN",
3: "CP-function",
4: "LI function",
}
RedirectAddressType = {
0: "IPv4 address",
1: "IPv6 address",
2: "URL",
3: "SIP URI",
}
GateStatus = {
0: "OPEN",
1: "CLOSED",
2: "CLOSED_RESERVED_2",
3: "CLOSED_RESERVED_3",
}
TimerUnit = {
0: '2 seconds',
1: '1 minute',
2: '10 minutes',
3: '1 hour',
4: '10 hours',
7: 'infinite',
}
OuterHeaderRemovalDescription = {
0: "GTP-U/UDP/IPv4",
1: "GTP-U/UDP/IPv6",
2: "UDP/IPv4",
3: "UDP/IPv6",
4: "IPv4",
5: "IPv6",
6: "GTP-U/UDP/IP",
7: "VLAN S-TAG",
8: "S-TAG and C-TAG",
}
NodeIdType = {
0: "IPv4",
1: "IPv6",
2: "FQDN",
}
FqCSIDNodeIdType = {
0: "IPv4",
1: "IPv6",
2: "MCCMNCId",
}
FlowDirection = {
0: "Unspecified",
1: "Downlink", # traffic to the UE
2: "Uplink", # traffic from the UE
3: "Bidirectional",
4: "Unspecified4",
5: "Unspecified5",
6: "Unspecified6",
7: "Unspecified7",
}
TimeUnit = {
0: "minute",
1: "6 minutes",
2: "hour",
3: "day",
4: "week",
5: "min5", # same as 0 (minute)
6: "min6", # same as 0 (minute)
7: "min7", # same as 0 (minute)
}
HeaderType = {
0: "HTTP",
}
PDNType = {
0: "IPv4",
1: "IPv6",
2: "IPv4v6",
3: "Non-IP",
4: "Ethernet",
}
RuleIDType = {
0: "PDR",
1: "FAR",
2: "QER",
3: "URR",
4: "BAR",
# TODO: other values should be interpreted as '1' if received
}
BaseTimeInterval = {
0: "CTP",
1: "DTP",
}
InterfaceType = {
0: "S1-U",
1: "S5 /S8-U",
2: "S4-U",
3: "S11-U",
4: "S12-U",
5: "Gn/Gp-U",
6: "S2a-U",
7: "S2b-U",
8: "eNodeB GTP-U interface for DL data forwarding",
9: "eNodeB GTP-U interface for UL data forwarding",
10: "SGW/UPF GTP-U interface for DL data forwarding",
11: "N3 3GPP Access",
12: "N3 Trusted Non-3GPP Access",
13: "N3 Untrusted Non-3GPP Access",
14: "N3 for data forwarding",
15: "N9",
}
class PFCPLengthMixin(object):
def post_build(self, p, pay):
p += pay
if self.length is None:
tmp_len = len(p) - 4
p = p[:2] + struct.pack("!H", tmp_len) + p[4:]
return p
class PFCP(PFCPLengthMixin, Packet):
# 3GPP TS 29.244 V15.6.0 (2019-07)
# without the version
name = "PFCP (v1) Header"
fields_desc = [
BitField("version", 1, 3),
XBitField("spare_b2", 0, 1),
XBitField("spare_b3", 0, 1),
XBitField("spare_b4", 0, 1),
BitField("MP", 0, 1),
BitField("S", 1, 1),
ByteEnumField("message_type", None, PFCPmessageType),
ShortField("length", None),
ConditionalField(XLongField("seid", 0),
lambda pkt:pkt.S == 1),
ThreeBytesField("seq", 0),
ConditionalField(BitField("priority", 0, 4),
lambda pkt:pkt.MP == 1),
ConditionalField(BitField("spare_p", 0, 4),
lambda pkt:pkt.MP == 1),
ConditionalField(ByteField("spare_oct", 0),
lambda pkt:pkt.MP == 0),
]
def hashret(self):
return struct.pack("B", self.version) + struct.pack("I", self.seq) + \
self.payload.hashret()
def answers(self, other):
return (isinstance(other, PFCP) and
self.version == other.version and
self.seq == other.seq and
self.payload.answers(other.payload))
class APNStrLenField(StrLenField):
# Inspired by DNSStrField
def m2i(self, pkt, s):
ret_s = b""
tmp_s = s
while tmp_s:
tmp_len = orb(tmp_s[0]) + 1
if tmp_len > len(tmp_s):
warning("APN prematured end of character-string (size=%i, remaining bytes=%i)" % (tmp_len, len(tmp_s))) # noqa: E501
ret_s += tmp_s[1:tmp_len]
tmp_s = tmp_s[tmp_len:]
if len(tmp_s):
ret_s += b"."
s = ret_s
return s
def i2m(self, pkt, s):
s = b"".join(chb(len(x)) + x for x in s.split(b"."))
return s
class ExtraDataField(StrField):
def __init__(self, name, default=b""):
StrField.__init__(self, name, default)
def addfield(self, pkt, s, val):
return s + self.i2m(pkt, val)
def getfield(self, pkt, s):
# + 4 accounts for the ietype and length fields
p = len(pkt.original) - len(s)
length = pkt.length + 4 - p
return s[length:], self.m2i(pkt, s[:length])
def randval(self):
return RandBin(RandNum(0, 2))
class Int40Field(Field):
def __init__(self, name, default):
Field.__init__(self, name, default, "BI")
def addfield(self, pkt, s, val):
val = self.i2m(pkt, val)
return s + struct.pack("!BI", val >> 32, val & 0xffffffff)
def getfield(self, pkt, s):
hi, lo = struct.unpack("!BI", s[:5])
return s[5:], self.m2i(pkt, (hi << 32) + lo)
def randval(self):
return RandNum(0, 2**40 - 1)
def IE_Dispatcher(s):
"""Choose the correct Information Element class."""
# Get the IE type
ietype = (orb(s[0]) * 256) + orb(s[1])
if ietype & 0x8000:
return IE_EnterpriseSpecific(s)
cls = ietypecls.get(ietype, Raw)
if cls is Raw:
cls = IE_NotImplemented
return cls(s)
class IE_Base(PFCPLengthMixin, Packet):
default_length = None
def __init__(self, *args, **kwargs):
self.fields_desc[0].default = self.ie_type
self.fields_desc[1].default = self.default_length
super(IE_Base, self).__init__(*args, **kwargs)
def extract_padding(self, pkt):
return "", pkt
fields_desc = [
ShortEnumField("ietype", 0, IEType),
ShortField("length", None)
]
class IE_Compound(IE_Base):
fields_desc = IE_Base.fields_desc + [
PacketListField("IE_list", None, IE_Dispatcher,
length_from=lambda pkt: pkt.length)
]
class IE_CreatePDR(IE_Compound):
name = "IE Create PDR"
ie_type = 1
class IE_PDI(IE_Compound):
name = "IE PDI"
ie_type = 2
class IE_CreateFAR(IE_Compound):
name = "IE Create FAR"
ie_type = 3
class IE_ForwardingParameters(IE_Compound):
name = "IE Forwarding Parameters"
ie_type = 4
class IE_DuplicatingParameters(IE_Compound):
name = "IE Duplicating Parameters"
ie_type = 5
class IE_CreateURR(IE_Compound):
name = "IE Create URR"
ie_type = 6
class IE_CreateQER(IE_Compound):
name = "IE Create QER"
ie_type = 7
class IE_CreatedPDR(IE_Compound):
name = "IE Created PDR"
ie_type = 8
class IE_UpdatePDR(IE_Compound):
name = "IE Update PDR"
ie_type = 9
class IE_UpdateFAR(IE_Compound):
name = "IE Update FAR"
ie_type = 10
class IE_UpdateForwardingParameters(IE_Compound):
name = "IE Update Forwarding Parameters"
ie_type = 11
class IE_UpdateBAR_SRR(IE_Compound):
name = "IE Update BAR (PFCP Session Report Response)"
ie_type = 12
class IE_UpdateURR(IE_Compound):
name = "IE Update URR"
ie_type = 13
class IE_UpdateQER(IE_Compound):
name = "IE Update QER"
ie_type = 14
class IE_RemovePDR(IE_Compound):
name = "IE Remove PDR"
ie_type = 15
class IE_RemoveFAR(IE_Compound):
name = "IE Remove FAR"
ie_type = 16
class IE_RemoveURR(IE_Compound):
name = "IE Remove URR"
ie_type = 17
class IE_RemoveQER(IE_Compound):
name = "IE Remove QER"
ie_type = 18
class IE_LoadControlInformation(IE_Compound):
name = "IE Load Control Information"
ie_type = 51
class IE_OverloadControlInformation(IE_Compound):
name = "IE Overload Control Information"
ie_type = 54
class IE_ApplicationID_PFDs(IE_Compound):
name = "IE Application ID's PFDs"
ie_type = 58
class IE_PFDContext(IE_Compound):
name = "IE PFD context"
ie_type = 59
class IE_ApplicationDetectionInformation(IE_Compound):
name = "IE Application Detection Information"
ie_type = 68
class IE_QueryURR(IE_Compound):
name = "IE Query URR"
ie_type = 77
class IE_UsageReport_SMR(IE_Compound):
name = "IE Usage Report (Session Modification Response)"
ie_type = 78
class IE_UsageReport_SDR(IE_Compound):
name = "IE Usage Report (Session Deletion Response)"
ie_type = 79
class IE_UsageReport_SRR(IE_Compound):
name = "IE Usage Report (Session Report Request)"
ie_type = 80
class IE_DownlinkDataReport(IE_Compound):
name = "IE Downlink Data Report"
ie_type = 83
class IE_Create_BAR(IE_Compound):
name = "IE Create BAR"
ie_type = 85
class IE_Update_BAR_SMR(IE_Compound):
name = "IE Update BAR (Session Modification Request)"
ie_type = 86
class IE_Remove_BAR(IE_Compound):
name = "IE Remove BAR"
ie_type = 87
class IE_ErrorIndicationReport(IE_Compound):
name = "IE Error Indication Report"
ie_type = 99
class IE_UserPlanePathFailureReport(IE_Compound):
name = "IE User Plane Path Failure Report"
ie_type = 102
class IE_UpdateDuplicatingParameters(IE_Compound):
name = "IE Update Duplicating Parameters"
ie_type = 105
class IE_AggregatedURRs(IE_Compound):
name = "IE Aggregated URRs"
ie_type = 118
class IE_CreateTrafficEndpoint(IE_Compound):
name = "IE Create Traffic Endpoint"
ie_type = 127
class IE_CreatedTrafficEndpoint(IE_Compound):
name = "IE Created Traffic Endpoint"
ie_type = 128
class IE_UpdateTrafficEndpoint(IE_Compound):
name = "IE Update Traffic Endpoint"
ie_type = 129
class IE_RemoveTrafficEndpoint(IE_Compound):
name = "IE Remove Traffic Endpoint"
ie_type = 130
class IE_EthernetPacketFilter(IE_Compound):
name = "IE Ethernet Packet Filter"
ie_type = 132
class IE_EthernetTrafficInformation(IE_Compound):
name = "IE Ethernet Traffic Information"
ie_type = 143
class IE_AdditionalMonitoringTime(IE_Compound):
name = "IE Additional Monitoring Time"
ie_type = 147
class IE_Cause(IE_Base):
ie_type = 19
name = "IE Cause"
fields_desc = IE_Base.fields_desc + [
ByteEnumField("cause", None, CauseValues)
]
class IE_SourceInterface(IE_Base):
name = "IE Source Interface"
ie_type = 20
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitEnumField("interface", "Access", 4, SourceInterface),
ExtraDataField("extra_data"),
]
class IE_FTEID(IE_Base):
name = "IE F-TEID"
ie_type = 21
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitField("CHID", 0, 1),
BitField("CH", 0, 1),
BitField("V6", 0, 1),
BitField("V4", 0, 1),
ConditionalField(XIntField("TEID", 0), lambda x: x.CH == 0),
ConditionalField(IPField("ipv4", 0),
lambda x: x.V4 == 1 and x.CH == 0),
ConditionalField(IP6Field("ipv6", 0),
lambda x: x.V6 == 1 and x.CH == 0),
ConditionalField(ByteField("choose_id", 0),
lambda x: x.CHID == 1),
ExtraDataField("extra_data"),
]
class IE_NetworkInstance(IE_Base):
name = "IE Network Instance"
ie_type = 22
fields_desc = IE_Base.fields_desc + [
APNStrLenField("instance", "", length_from=lambda x: x.length)
]
class IE_SDF_Filter(IE_Base):
name = "IE SDF Filter"
ie_type = 23
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 3),
BitField("BID", 0, 1),
BitField("FL", 0, 1),
BitField("SPI", 0, 1),
BitField("TTC", 0, 1),
BitField("FD", 0, 1),
ByteField("spare_oct", 0),
ConditionalField(FieldLenField("flow_description_length", None,
length_of="flow_description"),
lambda pkt: pkt.FD == 1),
ConditionalField(StrLenField("flow_description", "",
length_from=lambda pkt:
pkt.flow_description_length),
lambda pkt: pkt.FD == 1),
ConditionalField(ByteField("tos_traffic_class", 0),
lambda pkt: pkt.TTC == 1),
ConditionalField(ByteField("tos_traffic_mask", 0),
lambda pkt: pkt.TTC == 1),
ConditionalField(IntField("security_parameter_index", 0),
lambda pkt: pkt.SPI == 1),
ConditionalField(ThreeBytesField("flow_label", 0),
lambda pkt: pkt.FL == 1),
ConditionalField(IntField("sdf_filter_id", 0),
lambda pkt: pkt.BID == 1),
ExtraDataField("extra_data"),
]
class IE_ApplicationId(IE_Base):
name = "IE Application ID"
ie_type = 24
fields_desc = IE_Base.fields_desc + [
StrLenField("id", "", length_from=lambda x: x.length),
]
class IE_GateStatus(IE_Base):
name = "IE Gate Status"
ie_type = 25
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitEnumField("ul", "OPEN", 2, GateStatus),
BitEnumField("dl", "OPEN", 2, GateStatus),
ExtraDataField("extra_data"),
]
class IE_MBR(IE_Base):
name = "IE MBR"
ie_type = 26
fields_desc = IE_Base.fields_desc + [
Int40Field("ul", 0),
Int40Field("dl", 0),
ExtraDataField("extra_data"),
]
class IE_GBR(IE_Base):
name = "IE GBR"
ie_type = 27
fields_desc = IE_Base.fields_desc + [
Int40Field("ul", 0),
Int40Field("dl", 0),
ExtraDataField("extra_data"),
]
class IE_QERCorrelationId(IE_Base):
name = "IE QER Correlation ID"
ie_type = 28
fields_desc = IE_Base.fields_desc + [
IntField("id", 0),
ExtraDataField("extra_data"),
]
class IE_Precedence(IE_Base):
name = "IE Precedence"
ie_type = 29
fields_desc = IE_Base.fields_desc + [
IntField("precedence", 0),
ExtraDataField("extra_data"),
]
class IE_TransportLevelMarking(IE_Base):
name = "IE Transport Level Marking"
ie_type = 30
fields_desc = IE_Base.fields_desc + [
XByteField("tos", 0),
XByteField("traffic_class", 0),
ExtraDataField("extra_data"),
]
class IE_VolumeThreshold(IE_Base):
name = "IE Volume Threshold"
ie_type = 31
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 5),
BitField("DLVOL", 0, 1),
BitField("ULVOL", 0, 1),
BitField("TOVOL", 0, 1),
ConditionalField(XLongField("total", 0), lambda x: x.TOVOL == 1),
ConditionalField(XLongField("uplink", 0), lambda x: x.ULVOL == 1),
ConditionalField(XLongField("downlink", 0), lambda x: x.DLVOL == 1),
ExtraDataField("extra_data"),
]
class IE_TimeThreshold(IE_Base):
name = "IE Time Threshold"
ie_type = 32
fields_desc = IE_Base.fields_desc + [
IntField("threshold", 0),
ExtraDataField("extra_data"),
]
class IE_MonitoringTime(IE_Base):
name = "IE Monitoring Time"
ie_type = 33
fields_desc = IE_Base.fields_desc + [
IntField("time_value", 0),
ExtraDataField("extra_data"),
]
class IE_SubsequentVolumeThreshold(IE_Base):
name = "IE Subsequent Volume Threshold"
ie_type = 34
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 5),
BitField("DLVOL", 0, 1),
BitField("ULVOL", 0, 1),
BitField("TOVOL", 0, 1),
ConditionalField(XLongField("total", 0), lambda x: x.TOVOL == 1),
ConditionalField(XLongField("uplink", 0), lambda x: x.ULVOL == 1),
ConditionalField(XLongField("downlink", 0), lambda x: x.DLVOL == 1),
ExtraDataField("extra_data"),
]
class IE_SubsequentTimeThreshold(IE_Base):
name = "IE Subsequent Time Threshold"
ie_type = 35
fields_desc = IE_Base.fields_desc + [
IntField("threshold", 0),
ExtraDataField("extra_data"),
]
class IE_InactivityDetectionTime(IE_Base):
name = "IE Inactivity Detection Time"
ie_type = 36
fields_desc = IE_Base.fields_desc + [
IntField("time_value", 0),
ExtraDataField("extra_data"),
]
class IE_ReportingTriggers(IE_Base):
name = "IE Reporting Triggers"
ie_type = 37
fields_desc = IE_Base.fields_desc + [
BitField("linked_usage_reporting", 0, 1),
BitField("dropped_dl_traffic_threshold", 0, 1),
BitField("stop_of_traffic", 0, 1),
BitField("start_of_traffic", 0, 1),
BitField("quota_holding_time", 0, 1),
BitField("time_threshold", 0, 1),
BitField("volume_threshold", 0, 1),
BitField("periodic_reporting", 0, 1),
XBitField("spare", 0, 2),
BitField("event_quota", 0, 1),
BitField("event_threshold", 0, 1),
BitField("mac_addresses_reporting", 0, 1),
BitField("envelope_closure", 0, 1),
BitField("time_quota", 0, 1),
BitField("volume_quota", 0, 1),
ExtraDataField("extra_data"),
]
class IE_RedirectInformation(IE_Base):
name = "IE Redirect Information"
ie_type = 38
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitEnumField("type", "IPv4 address", 4, RedirectAddressType),
FieldLenField("address_length", None, length_of="address"),
StrLenField("address", "", length_from=lambda pkt: pkt.address_length),
ExtraDataField("extra_data"),
]
class IE_ReportType(IE_Base):
name = "IE Report Type"
ie_type = 39
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitField("UPIR", 0, 1),
BitField("ERIR", 0, 1),
BitField("USAR", 0, 1),
BitField("DLDR", 0, 1),
ExtraDataField("extra_data"),
]
class IE_OffendingIE(IE_Base):
name = "IE Offending IE"
ie_type = 40
fields_desc = IE_Base.fields_desc + [
ShortEnumField("type", None, IEType)
]
class IE_ForwardingPolicy(IE_Base):
name = "IE Forwarding Policy"
ie_type = 41
fields_desc = IE_Base.fields_desc + [
FieldLenField("policy_identifier_length", None,
length_of="policy_identifier", fmt="B"),
StrLenField("policy_identifier", "",
length_from=lambda pkt: pkt.policy_identifier_length)
]
class IE_DestinationInterface(IE_Base):
name = "IE Destination Interface"
ie_type = 42
fields_desc = IE_Base.fields_desc + [
XBitField("spare", 0, 4),
BitEnumField("interface", "Access", 4, DestinationInterface),
ExtraDataField("extra_data"),