Auth failure on FreeBSD

[codedmart]

I use this package in various Linux distros, and have no problems, but when using it in FreeBSD I get

*** Exception: SocketError {socketErrorMessage = "Authentication failed", socketErrorFatal = True, socketErrorAddress = Just (Address "unix:guid=2fb1d926d67497d679a521255e41b85e,path=/tmp/dbus-4vBp0kLUee")}

I am not entirely sure what is going on. If I add some print statements I can see:

"AUTH EXTERNAL 31303031\r\n" <- sent
"REJECTED EXTERNAL" <- returned

The dbus session address is set. I tried connection with packages in python, and go just to be sure. Both of those are able to connect just fine. I don't know go but did notice in the go code there is some calls to UnixCredentials. Have no idea if the Haskell code is doing that for sure, but doesn't seem like it from what I can tell. Any ideas why this is failing on FreeBSD?

[rblaze]

Sorry, I have no clue here, and I have no FreeBSD around. Could you strace a simple test program and see if some syscall is failing?

[codedmart]

Sure here is some more debugging output. The part I find interesting is this from the go output. Which is the initial null byte sent. The equvilant in the haskell output. In the go one there is this with the initial null byte send ...level=SOL_SOCKET,type=SCM_CREDS... which is what I linked above with the UnixCredentials part. Thanks!

[codedmart]

I checked python as well. Seems it is sending something similar for the initial null byte:

sendmsg(3,{NULL,0,[{"\0",1}],1,{{level=SOL_SOCKET,type=SCM_CREDS,data={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}}},104,0},MSG_NOSIGNAL) = 1 (0x1)

I will keep digging into this.

[codedmart]

Well I was able to get this working, but it is pretty rough right now. I didn't see currently in the network package the ability to use sendmsg with cmsg which is needed to properly send credentials for the socket. There is a PR open to add this ability to network here. If I am reading things correctly it looks like this isn't needed in Linux because abstract is used rather than path for the unix socket which is why things work correctly there. I ended up using the network-msg package to get this working for me locally, but I am not sure adding that as another dep makes sense if the PR in network lands soon. So feel free to leave open or close and I will follow up when the PR in network lands.

[rblaze]

I think postponing this issue until network catches up is a good idea.

[rblaze]

I see network has new functions merged. Does dbus work on FreeBSD now?