Ish: ssh-agent needs UNIX domain sockets

[zmwangx]

# ssh-agent                                                                                                                                                   
unix_listener: cannot bind to path /tmp/ssh-66GGxWn5a3Ib/agent.4: No such file or directory

This is the root account, so there shouldn’t be permission problems.

Binding to somewhere in the home directory doesn’t help either:

# ssh-agent -a ~/.agent.$$                                                                                                                                    
unix_listener: cannot bind to path /root/.agent.3: No such file or directory

[tbodt]

Unix domain sockets are not implemented.

[zmwangx]

Oh, that explains it. Any plan to support Unix domain sockets? Of the top of my head, gpg-agent, emacsclient, etc. could benefit too.

[tbodt]

The main difficulty is doing it in a filesystem-agnostic way. The challenge there is similar to the challenge in fcntl() locks (https://github.com/tbodt/ish/issues/217#issuecomment-450234983). (in other words, someone please do this for me)

[zmwangx]

Makes sense. Unfortunately I have zero iOS development experience...

[ankushnarula]

@tbodt Wouldn’t you want to use Dropbear rather than OpenSSL/ssh since it’s specifically for BusyBox?

https://matt.ucc.asn.au/dropbear/dropbear.html

[zmwangx]

OpenSSH client already works fine (AFAICT). This issue is about ssh-agent, and the underlying issue is lack of support for Unix domain sockets. It seems Dropbear doesn't even have an agent.

[tbodt]

Unix domain sockets should be working now.