This way we know that after enable-tor, the tor hidden service is fully
published and working, and so there should be no problems with it at
pairing time.
It has to start up its own temporary listener on the hidden service. It
would be nice to have it start the remotedaemon running, so that extra
step is not needed afterwards. But, there may already be a remotedaemon
running, in communication with the assistant and we don't want to start
another one. I thought about trying to HUP any running remotedaemon, but
Windows does not make it easy to do that. In any case, having the user
start the remotedaemon themselves lets them know it needs to be running
to serve the hidden service.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
weasel explained that apparmor limits on what files tor can read do not
apply to sockets (because they're not files). And apparently the
problems I was seeing with hidden services not being accessible had to
do with onion address propigation and not the location of the socket
file.
remotedaemon looks up the HiddenServicePort in torrc, so if it was
previously configured with the socket in /etc, that will still work.
This commit was sponsored by Denis Dzyubenko on Patreon.
This reverts commit 3037feb1bf.
On second thought, this was an overcomplication of what should be the
lowest-level primitive. Let's build bi-directional links at the pairing
level with eg magic wormhole.
Both the local and remote git repositories get remotes added
pointing at one-another.
Makes pairing twice as easy!
Security: The new LINK command in the protocol can be sent repeatedly,
but only by a peer who has authenticated with us. So, it's entirely safe to
add a link back to that peer, or to some other peer it knows about.
Anything we receive over such a link, the peer could send us over the
current connection.
There is some risk of being flooded with LINKs, and adding too many
remotes. To guard against that, there's a hard cap on the number of remotes
that can be set up this way. This will only be a problem if setting up
large p2p networks that have exceptional interconnectedness.
A new, dedicated authtoken is created when sending LINK.
This also allows, in theory, using a p2p network like tor, to learn about
links on other networks, like telehash.
This commit was sponsored by Bruno BEAUFILS on Patreon.
Revert ServerAliveInterval change in 6.20161111, which caused problems
with too many old versions of ssh and unusual ssh configurations.
It should have not been needed anyway since ssh is supposted to
have TCPKeepAlive enabled by default.
1 microsecond delay is ugly.. but, maintaining an queue of a list of timestamps
and taking a new one from the queue each time around, or maintaining a timestamp
counter, would probably be slower.
The attacker could just send a very lot of data, with no \n and it would
all be buffered in memory until the kernel killed git-annex or perhaps OOM
killed some other more valuable process.
This is a low impact security hole, only affecting communication between
local git-annex and git-annex-shell on the remote system. (With either
able to be the attacker). Only those with the right ssh key can do it. And,
there are probably lots of ways to construct git repositories that make git
use a lot of memory in various ways, which would have similar impact as
this attack.
The fix in P2P/IO.hs would have been higher impact, if it had made it to a
released version, since it would have allowed DOSing the tor hidden
service without needing to authenticate.
(The LockContent and NotifyChanges instances may not be really
exploitable; since the line is read and ignored, it probably gets read
lazily and does not end up staying buffered in memory.)
Would have liked to make the Parser parse the file and key pairs, but it
seems that optparse-applicative is unable to handle eg:
many ((,) <$> argument <*> argument)
This commit was sponsored by Thomas Hochstein on Patreon.
* rmurl: Multiple pairs of files and urls can be provided on the
command line.
* rmurl: Added --batch mode.
This commit was sponsored by Trenton Cronholm on Patreon.
* map: Run xdot if it's available in PATH. On OSX, the dot command
does not support graphical display, while xdot does.
* Debian: xdot is a better interactive viewer than dot, so Suggest
xdot, rather than graphviz.
Building w/o the webapp is not supposed to pull in any AGPLed files.
I appear to have written all the code in these files;
the only commit by anyone else is 64e844e1fe
and is a spelling fix that is not copyrightable.
Almost working, but there's a bug in the relaying.
Also, made tor hidden service setup pick a random port, to make it harder
to port scan.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
ghc 8 added backtraces on uncaught errors. This is great, but git-annex was
using error in many places for a error message targeted at the user, in
some known problem case. A backtrace only confuses such a message, so omit it.
Notably, commands like git annex drop that failed due to eg, numcopies,
used to use error, so had a backtrace.
This commit was sponsored by Ethan Aubin.
This makes merging a remote into a freshly created direct mode repository
work the same as it works in indirect mode.
The git-annex branches would get merged in any case by a sync,
since that doesn't use git merge.
This might need to be revisited later to better mirror git's behavior.
git-annex.cabal: Loosen bounds on persistent to allow 2.5, which on Debian
has been patched to work with esqueleto. This may break cabal's resolver on
non-Debian systems; if so, either use stack to build, or run cabal with
--constraint='persistent ==2.2.4.1' Hopefully this mess with esqueleto will
be resolved soon.
https://github.com/prowdsponsor/esqueleto/issues/137
