++documentation
This commit is contained in:
Nico Schottelius
parent
c8c911ffce
commit
7c42eefd40
7 changed files with 76 additions and 13 deletions
20
bin/gen_nat64_table_entries.py
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20
bin/gen_nat64_table_entries.py
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@ -0,0 +1,20 @@
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#!/bin/sh
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cat <<EOF
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table_cam_add_entry realmain_v4_networks_0 realmain.set_egress_port 167772202 => 16 0 0 0 0
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table_cam_add_entry realmain_v4_networks_0 realmain.set_egress_port 167772164 => 16 0 0 0 0
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table_cam_add_entry realmain_v6_networks_0 realmain.set_egress_port 42540766411362381960998550477184434182 => 64 0 0 0 0
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table_cam_add_entry realmain_v6_networks_0 realmain.set_egress_port 42540766411362381960998550477184434242 => 64 0 0 0 0
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table_cam_add_entry realmain_v6_networks_0 realmain.set_egress_port 42540766411362381960998550477352206378 => 64 0 0 0 0
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# 2001:db8:42:2a to be translated to 10.0.0.42:
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table_cam_add_entry realmain_nat64_0 realmain.nat64_static 42540766411362381960998550477184434218 => 42540766411362381960998550477184434176 167772160 42540766411362381960998550477184434176 0
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# 2001:db8:42::a00:2a to 10.0.0.42
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table_cam_add_entry realmain_nat64_0 realmain.nat64_static 42540766411362381960998550477352206378 => 42540766411362381960998550477184434176 167772160 42540766411362381960998550477184434176 0
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# 10.0.0.66 to be translated to 2001:db8:42:42
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table_cam_add_entry realmain_nat46_0 realmain.nat46_static 167772226 => 42540766411362381960998550477184434176 167772160 42540766411362381960998550477184434176 0
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EOF
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@ -1,3 +1,3 @@
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#!/bin/sh
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set -x
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echo from-v4-ok | socat - TCP:10.0.0.66:2345
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@ -1,3 +1,3 @@
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#!/bin/sh
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set -x
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echo TCPv4-ok | socat - TCP-LISTEN:2345
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@ -1,3 +1,3 @@
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#!/bin/sh
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set -x
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echo TCPv6-ok | socat - TCP6-LISTEN:2345
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@ -244,6 +244,12 @@ success
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\end{verbatim}
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Add table entry for 2001:db8:42::a00:2a to be translated to 10.0.0.66:
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\begin{verbatim}
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\end{verbatim}
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Add table entry for 10.0.0.66 to be translated to 2001:db8:42:42:
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\begin{verbatim}
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@ -275,8 +281,10 @@ success
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Step 3: setting neighbor entries
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\begin{verbatim}
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root@ESPRIMO-P956:~# ip neigh add 10.0.0.66 lladdr f8:f2:1e:09:62:d1 dev enp2s0f0
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nico@ESPRIMO-P956:~$ sudo ip -6 neigh add 2001:db8:42::2a lladdr f8:f2:1e:09:62:d0 dev enp2s0f1
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sudo ip neigh add 10.0.0.66 lladdr f8:f2:1e:09:62:d1 dev enp2s0f0
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sudo ip -6 neigh add 2001:db8:42::2a lladdr f8:f2:1e:09:62:d0 dev enp2s0f1
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sudo ip -6 neighbor add 2001:db8:42::a00:2a lladdr f8:f2:1e:09:62:d0 dev enp2s0f1
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\end{verbatim}
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Step 4: ping test should translate, but fail with wrong checksum:
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43
doc/plan.org
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doc/plan.org
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@ -8091,7 +8091,8 @@ It works!!!!!
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*** DONE 2019-07-29: documentation: `portland.sty' not found: removed include
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CLOSED: [2019-07-29 Mon 20:27]
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*** TODO 2019-07-31: Test final NAT64 code: v6 egress
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*** DONE 2019-07-31: Test final NAT64 code: v6,v4 egress: working
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CLOSED: [2019-08-01 Thu 21:09]
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#+BEGIN_CENTER
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>>> int(ipaddress.IPv6Address(u"2001:db8:42::70b4"))
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42540766411362381960998550477184463028L
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@ -8221,8 +8222,48 @@ success
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>>
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#+END_CENTER
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*** DONE 2019-08-01: trying tcp connect from v4 to v6: missing NDP
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CLOSED: [2019-08-01 Thu 21:08]
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#+BEGIN_CENTER
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nico@ESPRIMO-P956:~/master-thesis/bin$ ./socat-connect-tcp-v4
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nico@ESPRIMO-P956:~/master-thesis/bin$ ./socat-listen-tcp-v6
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nico@ESPRIMO-P956:~$ sudo tcpdump -ni enp2s0f1
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tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
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listening on enp2s0f1, link-type EN10MB (Ethernet), capture size 262144 bytes
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21:07:18.187732 IP6 2001:db8:42::a00:2a.47214 > 2001:db8:42::42.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,$
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ackOK,TS val 1139415246 ecr 0,nop,wscale 7], length 0
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21:07:18.187785 IP6 2001:db8:42::42 > ff02::1:ff00:2a: ICMP6, neighbor solicitation, who has 2001:db8:42::a00:2a, length 32
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21:07:19.206272 IP6 2001:db8:42::42 > ff02::1:ff00:2a: ICMP6, neighbor solicitation, who has 2001:db8:42::a00:2a, length 32
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21:07:19.206382 IP6 2001:db8:42::a00:2a.47214 > 2001:db8:42::42.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,$
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ackOK,TS val 1139416265 ecr 0,nop,wscale 7], length 0
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21:07:20.230196 IP6 2001:db8:42::42 > ff02::1:ff00:2a: ICMP6, neighbor solicitation, who has 2001:db8:42::a00:2a, length 32
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21:07:21.222351 IP6 2001:db8:42::a00:2a.47214 > 2001:db8:42::42.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,s
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ackOK,TS val 1139418281 ecr 0,nop,wscale 7], length 0
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nico@ESPRIMO-P956:~$ sudo tcpdump -ni enp2s0f0 [3/838]tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
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listening on enp2s0f0, link-type EN10MB (Ethernet), capture size 262144 bytes
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21:07:18.187648 IP 10.0.0.42.47214 > 10.0.0.66.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,sackOK,TS val 113$
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415246 ecr 0,nop,wscale 7], length 0
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21:07:19.206330 IP 10.0.0.42.47214 > 10.0.0.66.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,sackOK,TS val 113$
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416265 ecr 0,nop,wscale 7], length 0
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21:07:21.222273 IP 10.0.0.42.47214 > 10.0.0.66.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,sackOK,TS val 113$
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418281 ecr 0,nop,wscale 7], length 0
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21:07:25.318332 IP 10.0.0.42.47214 > 10.0.0.66.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,sackOK,TS val 113$
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422377 ecr 0,nop,wscale 7], length 0
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21:07:33.510274 IP 10.0.0.42.47214 > 10.0.0.66.2345: Flags [S], seq 1223033717, win 29200, options [mss 1460,sackOK,TS val 1139
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430569 ecr 0,nop,wscale 7], length 0
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^C
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#+END_CENTER
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*** DONE 2019-08-02: add reverse NAT64 entry
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CLOSED: [2019-08-02 Fri 10:19]
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#+BEGIN_CENTER
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table_cam_add_entry realmain_nat64_0 realmain.nat64_static 42540766411362381960998550477352206378 => 42540766411362381960998550477184434176 167772160 42540766411362381960998550477184434176 0
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#+END_CENTER
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*** TODO 2019-08-02: ipv4 checksum after nat64 is empty!
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** The NetPFGA saga
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Problems encountered:
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- The logfile for a compile run is 10k+ lines
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@ -2,6 +2,7 @@
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#include <sume_switch.p4>
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#include "headers.p4"
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#define Parsed_packet headers
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#define user_metadata_t metadata
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@ -22,13 +23,6 @@ parser RealParser(
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#include "parsers.p4"
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// state start {
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// packet.extract(hdr.ethernet);
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// digest_data.unused = 0;
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// transition accept;
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// }
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}
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@Xilinx_MaxPacketRegion(1024)
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