Can't make

[jnule1a]

I had difficulties to install netcore. Could you tell me what is wrong ? Thank you in advance.
Here is what happened:

• Installation of the pre-built virtual machine is ok.
• Installation of the finishing touches is ok up to before make.
• make produces an error:
  cabal configure --enable-tests
  Warning: The package list for 'hackage.haskell.org' is 19 days old.
  Run 'cabal update' to get the latest list of available packages.
  Resolving dependencies...
  Configuring netcore-1.1.0...
  cabal: At least the following dependencies are missing:
  HList -any,
  HUnit -any,
  QuickCheck >=2,
  ansi-wl-pprint -any,
  bimap ==0.2.,
  binary-strict >=0.4.0,
  fgl -any,
  hslogger ==1.2.,
  json >=0.4.3,
  syb ==0.3.,
  test-framework -any,
  test-framework-hunit -any,
  test-framework-quickcheck2 -any,
  test-framework-th -any
  make: ** [all] Error 1

I also tried unsuccessfully to use the stable version:

• Installation of the pre-built virtual machine is ok.
• Installation of the stable version and examples is ok.
• But "sudo ./demo.py vagrant" displays the following:
  [INFO : 2013-01-15 10:45:59 EST : nettle] could not accept switch switch broke connection
  xterm -e "echo "Ping Connectivity over MAC Learning:"; echo "Ctrl+D to exit"; ping 10.0.0.2 -c 10; bash"
  [INFO : 2013-01-15 10:45:59 EST : ARP] Got new routing policy for ARP
  [INFO : 2013-01-15 10:46:00 EST : nettle] could not accept switch switch broke connection
  xterm -e "echo "ARP caching using MAC Learning for connectivity"; echo "Ctrl+D to exit"; echo "Unfortunately, arping doesn't work on mininet."; arp -n; echo "At first, ping uses regular ARP over the MAC learning:"; ping 10.0.0.2 -c 1; arp -n; echo "But if we clear the ARP table, we get a reply from the controller:"; arp -d 10.0.0.2; arp -n; ping 10.0.0.2 -c 1; bash"
  [INFO : 2013-01-15 10:46:00 EST : nettle] could not accept switch switch broke connection during handshake
  [INFO : 2013-01-15 10:46:00 EST : ARP] Got new routing policy for ARP
  [INFO : 2013-01-15 10:46:01 EST : nettle] could not accept switch switch broke connection
  xterm -e "echo "SSH Daemon on the other host"; echo "Ctrl+D to exit"; $(which sshd) -d; bash"
  xterm -e "echo "Pings get blocked when at high frequency,"; echo "Ctrl+D to exit"; echo "# ping 10.0.0.2-i 0.1 -c 50 -q"; ping 10.0.0.2 -i 0.1 -c 50 -q; echo "but SSH still works because it's on a different slice."; echo "(but do give it a moment...)"; echo "# ssh [email protected]"; ssh [email protected]; bash"
  [INFO : 2013-01-15 10:46:01 EST : nettle] could not accept switch switch broke connection during handshake

[cschlesi]

Thanks for the report! There are really three issues here:

1. The wiki instructions were missing a step.
2. We use Cabal, not make, as a build system---the Makefile in the netcore directory is something of a red herring.
3. demo.py is broken.

1

Some NetCore dependences rely on the Happy Haskell parser generator. This needs to be installed before you can build NetCore:

cabal install happy

NB: This should be pre-installed as part of the VM image, but it's not. Hopefully it will be in the future.

2

At this point, we rely on the Cabal build system rather than make (the Makefile was added at some point as a convenience, but it's not supported or recommended and should probably be removed). From the netcore directory, the command to build NetCore is:

cabal install --enable-tests

or:

cabal-dev install --enable-tests

to install in a sandbox in the current directory.

However, you may also want to build a controller instead of just the library. To build the example controller, navigate to netcore/examples directory and run the command:

cabal-dev install . ..

This will build a single controller binary that includes most of the examples. The executable will be located in netcore/examples/cabal-dev/bin/frenetic-example-suite. Running

frenetic-example-suite --repeater

will start a controller with a policy as stated in netcore/examples/Repeater.hs. You can run

frenetic-example-suite --help

for a list of all the available flags, and the file netcore/examples/Main.hs shows which module each flag invokes.

3

As for demo.py, it seems to have broken. I'll add a new report on that.

Cheers,
Cole