I added the clientChan's msg channel to the list of channels that are closed in mainloop when the server sends a channelCloseMsg.
I added an ExitError type that wraps a Waitmsg similar to that of os/exec. I fill ExitStatus with the data returned in the 'exit-status' channel message and Msg with the data returned in the 'exit-signal' channel message.
Instead of having Wait() return on the first 'exit-status'/'exit-signal' I have it return an ExitError containing the status and signal when the clientChan's msg channel is closed.
I added two tests cases to session_test.go that test for exit status 0 (in which case Wait() returns nil) and exit status 1 (in which case Wait() returns an ExitError with ExitStatus 1)
R=dave, agl, rsc, golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5452051
This CL cleans up the client auth tests, making the
individual test body more manageable.
Also, adds tests for rsa and dsa key negotiation.
Finally, remove the package level use of the variable
strings, which avoids conflicting with the strings pkg.
R=gustav.paul, agl, n13m3y3r, rsc
CC=golang-dev
https://golang.org/cl/5447049
This is part one of a small set of CL's that aim to resolve
the outstanding TODOs relating to channel close and blocking
behavior.
Firstly, the hairy handling of assigning the peersId is now
done in one place. The cost of this change is the slightly
paradoxical construction of the partially created clientChan.
Secondly, by creating clientChan.stdin/out/err when the channel
is opened, the creation of consumers like tcpchan and Session
is simplified; they just have to wire themselves up to the
relevant readers/writers.
R=agl, gustav.paul, rsc
CC=golang-dev
https://golang.org/cl/5448073
All but 3 cases (in gcimporter.go and hixie.go)
are automatic conversions using gofix.
No attempt is made to use the new Append functions
even though there are definitely opportunities.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5447069
The SSH spec allows for the server to send a banner message to the client at any point during the authentication process. Currently the ssh client auth types all assume that the first response from the server after issuing a userAuthRequestMsg will be one of a couple of possible authentication success/failure messages. This means that client authentication breaks if the ssh server being connected to has a banner message configured.
This changeset refactors the noneAuth, passwordAuth and publickeyAuth types' auth() function and allows for msgUserAuthBanner during authentication.
R=golang-dev, rsc, dave, agl
CC=golang-dev
https://golang.org/cl/5432065
This is the result of running `gofix -r hashsum` over the tree, changing
the hash function implementations by hand and then fixing a couple of
instances where gofix didn't catch something.
The changed implementations are as simple as possible while still
working: I'm not trying to optimise in this CL.
R=rsc, cw, rogpeppe
CC=golang-dev
https://golang.org/cl/5448065
Exec() has been renamed to Run() in keeping with the os/exec API.
Added func (*Session) Start(cmd string) which starts a remote process but unlike Run() doesn't wait for it to finish before returning.
Run() has been refactored to use Start internally. Its really just a refactoring, no new code but some extra functionality was won.
Also added func (*Session) Signal(sig signal) which sends a UNIX signal to a remote process. This is espcially useful in conjunction with Start() as the two allow you to start a remote process, monitor its stdout/stderr, and send it a TERM/HUP/etc signal when you want it to close.
R=dave, rsc, agl, bradfitz, n13m3y3r, gustavo
CC=golang-dev
https://golang.org/cl/5437058
According to http://www.ietf.org/rfc/rfc4254.txt most channel messages contain the channel id of the recipient channel, not the sender id. This allows the recipient connection multiplexer to route the message to the correct channel.
This changeset fixes several messages that incorrectly send the local channel id instead of the remote channel's id.
While sessions were being created and closed in sequence channels in the channel pool were freed and reused on the server side of the connection at the same rate as was done on the client, so the channel local and remote channel ids always corresponded. As soon as I had concurrent sessions on the same clientConn the server started to complain of 'uknown channel id N' where N is the local channel id, which is actually paired with server channel id K.
R=golang-dev, dave, rsc, agl
CC=golang-dev
https://golang.org/cl/5433063
IIRC, package sql used to be called db. There was one occurrence
of the old name in a comment.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5431075
This CL inverts the direction of the Stdin/out/err members of the
Session struct so they reflect the API of the exec.Cmd. In doing so
it borrows heavily from the exec package.
Additionally Shell now returns immediately, wait for completion using
Wait. Exec calls Wait internally and so blocks until the remote
command is complete.
Credit to Gustavo Niemeyer for the impetus for this CL.
R=rsc, agl, n13m3y3r, huin, bradfitz
CC=cw, golang-dev
https://golang.org/cl/5322055
deps.bash does not understand current format,
so make.bash fails (with MAKEFLAGS=-j20).
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5410046
Fixes use of c after Dial failure (causes crash).
May fix Dial failure by listening to 127.0.0.1:0
instead of 0.0.0.0:0 (tests should only listen on
localhost).
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5395052
Ensure that empty NameLists always return
a zero length []string, not nil.
In practice NameLists are only used in a few
message types and always consumed by a for
range function so the difference between nil
and []string{} is not significant.
Also, add exp/ssh to pkg/Makefile as suggested
by rsc.
R=rsc, agl
CC=golang-dev
https://golang.org/cl/5400042
- syscall (not os) now defines the Errno type.
- the low-level assembly functions Syscall, Syscall6, and so on
return Errno, not uintptr
- syscall wrappers all return error, not uintptr.
R=golang-dev, mikioh.mikioh, r, alex.brainman
CC=golang-dev
https://golang.org/cl/5372080
This CL adds experimental support for making proxied
net.Conn connections via the remote server.
nb. Functional tests exist for this feature but CL
5320053 or similar needs to be committed to support them.
R=rsc, agl, n13m3y3r
CC=cw, golang-dev, huin
https://golang.org/cl/5371081
client.go/client_auth.go:
* add support for publickey key auth using the interface
outlined by rsc in the previous auth CL
client_auth_test.go:
* password and publickey tests against server.go
common.go/server.go:
* move some helper methods from server.go into common.go
* generalise serializeRSASignature
R=rsc, agl, huin
CC=cw, golang-dev, n13m3y3r
https://golang.org/cl/5373055
Some remote servers send a 0 window size in the channel
open confirm msg, others send a non zero window size. Make
sure this initial advertisement is not lost.
R=agl, rsc, cw
CC=golang-dev
https://golang.org/cl/5372083
It was never really a shell, but the name carried
over from SSH's ServerShell.
Two small functional changes:
Add SetSize, which allows the size of the terminal
to be changed in response, say, to an SSH message.
Don't write the prompt if there's already something
on the current line.
R=rsc
CC=golang-dev
https://golang.org/cl/5376066
(This is part of removing the duplicate code between exp/terminal and
exp/ssh, but hg is having a very hard time keeping up so I'm doing it
in small steps.)
R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/5373061
This CL adds an API for handling the various SSH
authenticaton methods. None and password continue
to be the only supported methods.
R=bradfitz, agl, n13m3y3r, rsc, cw
CC=golang-dev
https://golang.org/cl/5328045
