1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
; BSD LICENSE
;
; Copyright(c) 2016 Intel Corporation. All rights reserved.
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
;
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in
; the documentation and/or other materials provided with the
; distribution.
; * Neither the name of Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
; The diagram below shows how additional protocol components can be plugged into
; the IP layer implemented by the ip_pipeline application. Pick your favorite
; open source components for dynamic ARP, ICMP, UDP or TCP termination, etc and
; connect them through SWQs to the IP infrastructure.
;
; The input packets with local destination are sent to the UDP/TCP applications
; while the input packets with remote destination are routed back to the
; network. Additional features can easily be added to this setup:
; * IP Reassembly: add SWQs with IP reassembly enabled (typically required for
; the input traffic with local destination);
; * IP Fragmentation: add SWQs with IP fragmentation enabled (typically
; required to enforce the MTU for the routed output traffic);
; * Traffic Metering: add Flow Action pipeline instances (e.g. for metering the
; TCP connections or ICMP input traffic);
; * Traffic Management: add TMs for the required output LINKs;
; * Protocol encapsulations (QinQ, MPLS) for the output packets: part of the
; routing pipeline configuration.
;
; _________ _________
; | | | |
; | UDP | | TCP |
; | App | | App |
; |_________| |_________|
; ^ | ^ |
; __|___V__ __|___V__
; | | SWQ0 (UDP TX) | | SWQ1 (TCP TX)
; | UDP |-------+ | TCP |------------+
; | | | | | |
; |_________| | |_________| |
; ^ | ^ |
; | SWQ2 | | SWQ3 |
; | (UDP RX) | | (TCP RX) |
; ____|____ | ____|____ |
; | | | | | |
; RXQ<0..3>.1 ------>|Firewall +--->| | +------>| Flow +--->| |
; (UDP local dest) | (P2) | SINK0 | | | (P3) | SINK1 |
; |_________| (Deny)| | |_________| (RST) |
; RXQ<0..3>.2 -------------------------|-----+ |
; (TCP local dest) | |
; | +------------------------------+
; | |
; _V_____V_
; | |
; | Routing | TXQ<0..3>.0
; RXQ<0..3>.0 ---------------------->| & ARP +----------------------------->
; (IP remote dest) | (P1) |
; |_________|
; | ^ |
; SWQ4 +-------------+ | | SWQ5 (ARP miss)
; (Route miss) | | +------------+
; | +-------------+ |
; ___V__|__ SWQ6 ____V____
; | | (ICMP TX) | | TXQ<0..3>.1
; RXQ<0..3>.3 ------>| ICMP | +------>| Dyn ARP +------------->
; (IP local dest) | | | | |
; |_________| | |_________|
; RXQ<0..3>.4 -------------------------------+
; (ARP)
;
; This configuration file implements the diagram presented below, where the
; dynamic ARP, ICMP, UDP and TCP components have been stubbed out and replaced
; with loop-back and packet drop devices.
;
; _________ _________
; | | SWQ0 (UDP TX) | | SWQ1 (TCP TX)
; |Loobpack |-------+ |Loopback |------------+
; | (P4) | | | (P5) | |
; |_________| | |_________| |
; ^ | ^ |
; | SWQ2 | | SWQ3 |
; | (UDP RX) | | (TCP RX) |
; ____|____ | ____|____ |
; | | | | | |
; RXQ<0..3>.1 ------>|Firewall +--->| | +------>| Flow +--->| |
; (UDP local dest) | (P2) | SINK0 | | | (P3) | SINK1 |
; |_________| (Deny)| | |_________| (RST) |
; RXQ<0..3>.2 -------------------------|-----+ |
; (TCP local dest) | |
; | +------------------------------+
; | |
; _V_____V_
; | |
; | Routing | TXQ<0..3>.0
; RXQ<0..3>.0 ---------------------->| & ARP +----------------------------->
; (IP remote dest) | (P1) |
; |_________|
; | |
; SINK2 |<---+ +--->| SINK3
; (Route miss) (ARP miss)
;
; _________ _________
; | | | |
; RXQ<0..3>.3 ------>| Drop +--->| SINK<4..7> +------>| Drop +--->| SINK<8..11>
; (IP local dest) | (P6) | (IP local dest) | | (P7) | (ARP)
; |_________| | |_________|
; RXQ<0..3>.4 ------------------------------------+
; (ARP)
;
;
; Input packet: Ethernet/IPv4 or Ethernet/ARP
; Output packet: Ethernet/IPv4 or Ethernet/ARP
;
; Packet buffer layout (for input IPv4 packets):
; # Field Name Offset (Bytes) Size (Bytes)
; 0 Mbuf 0 128
; 1 Headroom 128 128
; 2 Ethernet header 256 14
; 3 IPv4 header 270 20
; 4 ICMP/UDP/TCP header 290 8/8/20
[EAL]
log_level = 0
[LINK0]
udp_local_q = 1
tcp_local_q = 2
ip_local_q = 3
arp_q = 4
[LINK1]
udp_local_q = 1
tcp_local_q = 2
ip_local_q = 3
arp_q = 4
[LINK2]
udp_local_q = 1
tcp_local_q = 2
ip_local_q = 3
arp_q = 4
[LINK3]
udp_local_q = 1
tcp_local_q = 2
ip_local_q = 3
arp_q = 4
[PIPELINE0]
type = MASTER
core = 0
[PIPELINE1]
type = ROUTING
core = 1
pktq_in = RXQ0.0 RXQ1.0 RXQ2.0 RXQ3.0 SWQ0 SWQ1
pktq_out = TXQ0.0 TXQ1.0 TXQ2.0 TXQ3.0 SINK2 SINK3
port_local_dest = 4 ; SINK2 (Drop)
n_arp_entries = 1000
ip_hdr_offset = 270
arp_key_offset = 128
[PIPELINE2]
type = FIREWALL
core = 1
pktq_in = RXQ0.1 RXQ1.1 RXQ2.1 RXQ3.1
pktq_out = SWQ2 SINK0
n_rules = 4096
[PIPELINE3]
type = FLOW_CLASSIFICATION
core = 1
pktq_in = RXQ0.2 RXQ1.2 RXQ2.2 RXQ3.2
pktq_out = SWQ3 SINK1
n_flows = 65536
key_size = 16 ; IPv4 5-tuple key size
key_offset = 278 ; IPv4 5-tuple key offset
key_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF ; IPv4 5-tuple key mask
flowid_offset = 128 ; Flow ID effectively acts as TCP socket ID
[PIPELINE4]
type = PASS-THROUGH ; Loop-back (UDP place-holder)
core = 1
pktq_in = SWQ2
pktq_out = SWQ0
[PIPELINE5]
type = PASS-THROUGH ; Loop-back (TCP place-holder)
core = 1
pktq_in = SWQ3
pktq_out = SWQ1
[PIPELINE6]
type = PASS-THROUGH ; Drop (ICMP place-holder)
core = 1
pktq_in = RXQ0.3 RXQ1.3 RXQ2.3 RXQ3.3
pktq_out = SINK4 SINK5 SINK6 SINK7
[PIPELINE7]
type = PASS-THROUGH ; Drop (Dynamic ARP place-holder)
core = 1
pktq_in = RXQ0.4 RXQ1.4 RXQ2.4 RXQ3.4
pktq_out = SINK8 SINK9 SINK10 SINK11
|
