Rare project developers

[mc36 <>]

fyi

-------- Forwarded Message --------
Subject: [RARE-users] new target for the dataplanes... :)
Date: Tue, 14 Jun 2022 19:39:24 +0200
From: mc36 <>
Reply-To: 
To:  <>, 
 <>

hi,
after some trial and fail, i managed to have a stable p4emu running on all my 
openwrt platforms...
moreover, the 3 small box now aggregated as a single forwarding entity via 
the recently introduced
backplane/stacking functionality... that is, as i roam in my homenet with my 
phone, it's only saw
in freerouter as my mac moving between sdn interfaces in a single bridge... 
(before i used gretap
to aggregate the layer2 frames and do the routing to them, at that time, it 
was tunXXX interface...)
wifi>show logging | include 9809.cf74.2433
2022-06-14 19:14:41 info ifcBridge.doRxPack:ifcBridge.java:1000 
9809.cf74.2433 learned from sdn3/4
2022-06-14 19:16:51 info ifcBridge.doRxPack:ifcBridge.java:994 9809.cf74.2433 
moved from sdn3/4 to sdn1/4
wifi>
the howto is here; 
https://github.com/rare-freertr/freeRtr/tree/master/misc/openwrt
but basically nothing special, just the p4emu.bin runs on the openwrt, the 
controlling freerouter
runs in a (redundant) vdc, several routed hops away from the openwrts' 
p4emu...
the only hack introduced is that they use wolfssl, and it supports just a 
subset of the cipher
and hash algorithms so p4emu got a nocrypto compilation flag until they'll 
pick up everything...
but at least, i can see in practice that crypto can happen remotely: so i can 
easily communicate
homenet wide, and everything outside the house uses l2tp and macsec in dpdk, 
whereas everything
toward the openwrts are unencrypted...
br,
cs

wifi>show p4lang p4 backplane-graph 0
sfdp -Tpng > net.png << EOF
graph net {
//fwd0
  "fwd0" -- "fwd2" [weight=10] [taillabel="prt2"]
  "fwd0" -- "fwd1" [weight=10] [taillabel="prt3"]
  "fwd0" -- "fe80:bad::1/128" [weight=0]
//fwd1
  "fwd1" -- "fwd0" [weight=10] [taillabel="prt2"]
  "fwd1" -- "fwd2" [weight=10] [taillabel="prt3"]
  "fwd1" -- "fe80:bad::2/128" [weight=0]
//fwd2
  "fwd2" -- "fwd0" [weight=10] [taillabel="prt2"]
  "fwd2" -- "fwd1" [weight=10] [taillabel="prt3"]
  "fwd2" -- "fe80:bad::3/128" [weight=0]
}
EOF

wifi>



BusyBox v1.35.0 (2022-06-10 07:20:21 UTC) built-in shell (ash)

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt 22.03.0-rc4, r19426-2b1941e47d
 -----------------------------------------------------
root@apl:~# ps | grep p4e
 2757 root      1380 S    {p4emu.sh} /bin/sh /usr/sbin/p4emu.sh 10.1.11.12 
9080 0 gre4t-cpuport eth0.167 et
 3058 root     33204 S    /usr/sbin/p4emu.bin 10.1.11.12 9080 0 gre4t-cpuport 
eth0.167 eth0.152 eth0.151 wl
 3087 root      1308 S    grep p4e
root@apl:~#