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Re: kern/53199: stateful npf

The following reply was made to PR kern/53199; it has been noted by GNATS.

From: Patrick Welche <prlw1%cam.ac.uk@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/53199: stateful npf
Date: Fri, 4 May 2018 15:13:39 +0100

 On Fri, May 04, 2018 at 02:10:01PM +0000, Patrick Welche wrote:
 >  The attached rump based script works. Trying the same on a NetBSD-8.99.15/amd64
 >  webserver with two wm(4), and morden.no as the client, doesn't.
 
 surprised that pkgsrc mutt munged the attachement like that... Here using :r
 
 
 # 
 # webserver 192.168.0.1 ----- client 192.168.0.2
 # 
 
 sock_webserver=unix:///tmp/sockwebserver
 sock_client=unix:///tmp/sockclient
 
 wire1=/tmp/netbus1
 
 #inetserver="rump_server -lrumpnet -lrumpnet_net -lrumpnet_netinet -lrumpnet_shmif"
 inetserver=rump_allserver
 
 ${inetserver} ${sock_webserver}
 export RUMP_SERVER=${sock_webserver}
 rump.ifconfig shmif0 create
 rump.ifconfig shmif0 linkstr $wire1
 rump.ifconfig shmif0 inet 192.168.0.1 netmask 0xffffff00
 
 cat > /tmp/npf.conf << EOF
 set bpf.jit off
 
 group "ext" on shmif0 {
   block in all
   pass stateful in proto tcp flags S/SA from any to 192.168.0.1 port 80
 }
 
 group default {
   pass all 
 }
 EOF
 
 export 'RUMPHIJACK=path=/rump,blanket=/dev/npf,socket=all:nolocal,sysctl=yes'
 env LD_PRELOAD=/usr/lib/librumphijack.so \
   /sbin/npfctl validate /tmp/npf.conf
 env LD_PRELOAD=/usr/lib/librumphijack.so \
   /sbin/npfctl reload /tmp/npf.conf
 env LD_PRELOAD=/usr/lib/librumphijack.so \
   /sbin/npfctl start
 
 cat > /tmp/webserver.html << EOF
 <html>
 <head>
 <title>webserver</title>
 </head>
 <body>
 Hello from webserver!
 </body>
 </html>
 EOF
 
 env LD_PRELOAD=/usr/lib/librumphijack.so \
   /usr/libexec/httpd -d -P httpd.pid -i 192.168.0.1 -f -b -s /tmp &
 
 ${inetserver} ${sock_client}
 export RUMP_SERVER=$sock_client
 rump.ifconfig shmif0 create
 rump.ifconfig shmif0 linkstr $wire1
 rump.ifconfig shmif0 inet 192.168.0.2 netmask 0xffffff00
 env LD_PRELOAD=/usr/lib/librumphijack.so \
   /usr/bin/ftp -4 -n -d -o out 'http://192.168.0.1/webserver.html'
 
 kill `cat httpd.pid`
 
 for box in ${sock_webserver} ${sock_client}; do
 	export RUMP_SERVER=${box}
 	rump.halt
 done
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