Commit Graph
34 Commits
Author SHA1 Message Date
Adam Langley 2dfe547928 go.crypto/ssh: use permissions from public key cache when accepting a key.
Fixes golang/go#7913.

LGTM=hanwen
R=hanwen
CC=golang-codereviews
https://golang.org/cl/96220043
2014-05-12 11:19:56 -07:00
Adam Langley fa50e7408b go.crypto/ssh: import gosshnew.
See https://groups.google.com/d/msg/Golang-nuts/AoVxQ4bB5XQ/i8kpMxdbVlEJ

R=hanwen
CC=golang-codereviews
https://golang.org/cl/86190043
2014-04-09 13:57:52 -07:00
Han-Wen Nienhuys 34df1ce598 go.crypto/ssh: in {Server,Client}Conn, read session ID from
transport layer.

R=agl, dave
CC=golang-dev
https://golang.org/cl/15870044
2013-10-25 11:15:34 -04:00
Dave Cheney c0d640c887 go.crypto/ssh: ensure {Server,Client}Conn do not expose io.ReadWriter
Transport should not be a ReadWriter. It can only write packets, i.e. no partial reads or writes. Furthermore, you can currently do ClientConn.Write() while the connection is live, which sends raw bytes over the connection. Doing so will confuse the transports because the data is not encrypted.

As a consequence, ClientConn and ServerConn stop being a net.Conn

Finally, ensure that {Server,Client}Conn implement LocalAddr and RemoteAddr methods that previously were exposed by an embedded net.Conn field.

R=hanwen
CC=golang-dev
https://golang.org/cl/16610043
2013-10-25 06:29:58 +11:00
Han-Wen Nienhuys f5f25bdad0 go.crypto/ssh: put version exchange in function
R=golang-dev, dave, jpsugar, agl
CC=golang-dev
https://golang.org/cl/14641044
2013-10-17 08:54:15 +11:00
Jonathan Pittman 44256fa2df go.crypto/ssh: cosmetic only spelling fixes
R=agl, hanwen
CC=dave, golang-dev, jpsugar
https://golang.org/cl/14430055
2013-10-10 11:35:15 -04:00
JP Sugarbroad 15d8abf5c4 go.crypto/ssh: fix certificate parsing/marshaling.
The change to add the PublicKey interface accidentally caused certificate handling to expect an extra copy of the private key algorithm name in the binary representation. This change adapts a suitable parsing API and adds a test to ensure that cert handling isn't easily broken in the future.

R=agl, hanwen, jmpittman
CC=golang-dev
https://golang.org/cl/13272055
2013-10-09 12:56:09 -04:00
Han-Wen Nienhuys 4147256c9c go.crypto/ssh: move interpretation of msgNewKeys into
transport.

Sending the msgNewKeys packet and setting up the key material
now happen under a lock, preventing races with concurrent
writers.

R=kardianos, agl, jpsugar, hanwenn
CC=golang-dev
https://golang.org/cl/14476043
2013-10-08 15:47:04 -04:00
Han-Wen Nienhuys 73e99326fb go.crypto/ssh: separate kex algorithms into kexAlgorithm class.
Adds readPacket() to conn, and renames conn to packetConn.
Key exchanges operate on packetConn, so they can be
unittested.

R=agl, jpsugar, dave
CC=golang-dev
https://golang.org/cl/13352055
2013-09-24 12:26:29 -04:00
Han-Wen Nienhuys 934c14ffe9 go.crypto/ssh: introduce Signer method, an abstraction of
private keys.

R=agl, jpsugar, jonathan.mark.pittman
CC=golang-dev
https://golang.org/cl/13338044
2013-09-19 14:45:31 -04:00
Han-Wen Nienhuys e62b2aead4 go.crypto/ssh: introduce PublicKey interface type.
Public functions affected:
-AgentKey.Key
-AgentClient.SignRequest
-ClientKeyring.Key
-MarshalPublicKey
-ParsePublicKey

R=agl, jpsugar, jmpittman
CC=golang-dev
https://golang.org/cl/13642043
2013-09-13 14:25:14 -04:00
Jonathan Pittman 6a743c56c7 go.crypto/ssh: Begin adding server side support for more than RSA for client key auth
R=agl, dave, hanwen
CC=ekg, golang-dev
https://golang.org/cl/13528044
2013-09-09 13:06:04 -04:00
Han-Wen Nienhuys f17d130281 go.crypto/ssh: remove misleading marshalPrivRSA.
Properly capitalize publicKey throughout.

R=golang-dev
CC=agl, dave, golang-dev, jpsugar
https://golang.org/cl/13415046
2013-09-05 11:36:51 -04:00
Han-Wen Nienhuys d7d50b0a7c go.crypto/ssh: implement ECDH.
Implement elliptic-curve Diffie-Hellman, including host key signature
verification.

Moves host key cryptographic verification to ClientConn.handshake(), so
RSA host keys are also verified.

Fixes golang/go#6158.

R=dave, agl
CC=golang-dev
https://golang.org/cl/13021045
2013-08-28 10:50:25 -04:00
Adam Langley aa0f5b4081 go.crypto: revert 7f5a59ff6b43.
This change reverts https://golang.org/cl/10113043/ because
some folks are stuck on 1.0 till 1.1.1 comes out.

R=golang-dev
CC=golang-dev
https://golang.org/cl/10151043
2013-06-10 10:57:00 -04:00
Adam Langley eca6c1626e go.crypto: remove unreachable code.
I ran go vet over all of go.crypto and removed lots of panic("unreachable") that are no longer needed.

R=golang-dev, r, dgryski
CC=golang-dev
https://golang.org/cl/10113043
2013-06-07 16:05:15 -04:00
Han-Wen Nienhuys c7df565dd4 go.crypto/ssh: implement keyboard-interactive auth (RFC 4256), both
on client and server-side.

R=dave, agl
CC=gobot, golang-dev
https://golang.org/cl/9853050
2013-06-06 10:44:12 -04:00
Han-Wen Nienhuys 36bf31eb71 go.crypto/ssh: add a error return to decode(), and avoid casting decode() output.
R=dave, kardianos, agl
CC=gobot, golang-dev
https://golang.org/cl/9738053
2013-06-06 10:24:21 -04:00
Adam Langley 4002be2701 go.crypto/ssh: run gofmt
gofmt got better at removing trailing whitespace.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6929044
2012-12-10 18:12:36 -05:00
Dave Cheney 552202b8e3 go.crypto/ssh: assorted close related fixes
Fixes golang/go#3810.

Fixes chanWriter Write after close behaviour bug.

Fixes serverChan writePacket after close bug.

Addresses final comments by agl on 6405064, plus various cleanups.

R=agl, kardianos, gustav.paul, fullung
CC=golang-dev
https://golang.org/cl/6479056
2012-09-05 09:47:02 +10:00
Dave Cheney 7343d5f584 go.crypto/ssh: improve channel max packet handling
This proposal moves the check for max packet into
channel.writePacket. Callers should be aware they cannot
pass a buffer larger than max packet. This is only a
concern to chanWriter.Write and appropriate guards are
already in place.

There was some max packet handling in transport.go but it was
incorrect. This has been removed.

This proposal also cleans up session_test.go.

R=gustav.paul, agl, fullung, huin
CC=golang-dev
https://golang.org/cl/6460075
2012-08-13 08:22:53 +10:00
Dave Cheney f4749cba32 go.crypto/ssh: never send more data than maxpacket
RFC 4254 s5.2 is clear that a client must never send a data
packet larger than the value of maximum packet supplied by the
remote side during channel setup. The client was not honoring
this value, in fact it wasn't even recording it.

Thanks to Albert Strasheim for the bug report.

R=agl, fullung
CC=golang-dev
https://golang.org/cl/6448128
2012-08-09 10:22:00 +10:00
Dave Cheney d1bf83abcb go.crypto/ssh: use binary.BigEndian throughout
A small cleanup.

R=agl, gustav.paul
CC=golang-dev
https://golang.org/cl/6406043
2012-07-20 10:33:35 +10:00
Daniel Theophanes f8bd48becc go.crypto/ssh: allow server to respond to client init key exchange.
A windows SSH client, PuTTY, by default re-keys after every 60 minutes
or 1G of data transfer.

R=dave, agl
CC=golang-dev
https://golang.org/cl/6301071
2012-06-12 16:34:46 -04:00
Dave Cheney 8a2e7c966a go.crypto/ssh: make {client,server}Chan use common window management
R=agl, gustav.paul, kardianos
CC=golang-dev
https://golang.org/cl/6208043
2012-05-11 05:56:44 +10:00
Dave Cheney 523290a72d go.crypto/ssh: move common channel methods into an embedded struct
This CL introduces a new struct, channel to hold common shared
functions.

* add a new channel struct, which is embeded in {client,server}Chan.
* move common methods from {client,server}Chan into channel.
* remove unneeded used of serverConn.lock in serverChan
 (transport.writePacket has its own mutex).
* remove filteredConn, introduce conn.

R=agl, gustav.paul
CC=golang-dev
https://golang.org/cl/6128059
2012-05-09 08:20:05 +10:00
Dave Cheney 68e64b8f78 go.crypto/ssh: struct renaming
This CL is in preparation for 6128059.

* rename channel -> serverChan
* rename chanlist -> chanList
* normalise theirId/MyId/id/peersId -> localId/remoteId

R=agl
CC=golang-dev
https://golang.org/cl/6174046
2012-05-05 07:59:48 +10:00
Adam Langley 63f855d724 ssh: cosmetic cleanups
These are the cosmetic cleanups from the bits of code that I
rereviewed.

1) stringLength now takes a int; the length of the string. Too many
   callers were allocating with stringLength([]byte(s)) and
   stringLength only needs to call len().

2) agent.go now has sendAndReceive to remove logic that was
   duplicated.

3) We now reject negative DH values

4) We now reject empty packets rather than crashing.

R=dave, jonathan.mark.pittman
CC=golang-dev
https://golang.org/cl/6061052
2012-04-20 15:17:42 -04:00
Daniel Theophanes 452b645a37 go.crypto/ssh: respect adjust window msg on server.
R=golang-dev
CC=agl, golang-dev
https://golang.org/cl/5908048
2012-03-26 12:44:23 -04:00
Daniel Theophanes 36a967d321 go.crypto/ssh: add support for diffie-hellman-group1-sha1.
Fixes golang/go#2903.

R=golang-dev
CC=agl, golang-dev
https://golang.org/cl/5755054
2012-03-06 11:25:32 -05:00
Dave Cheney 6de97b525f go.crypto/ssh: improve support for MAC algorithms
Also, add support for hmac-sha1.

At the suggestion of AGL hmac-md5, and hmac-md5-96
support was not included.

Fixes golang/go#3095.

R=golang-dev, agl, huin
CC=golang-dev
https://golang.org/cl/5696065
2012-02-27 19:40:52 -05:00
Jonathan Pittman 9b05c27191 go.crypto/ssh: add client support for OpenSSH certificates
Refactor key parsing, marshaling, and serialization to be a bit more flexible

R=agl, dave, djm
CC=golang-dev
https://golang.org/cl/5650067
2012-02-24 12:52:06 -05:00
Daniel Theophanes 2b43ac23a9 go.crypto/ssh: add User to ServerConn and pass *ServerConn to callbacks.
R=golang-dev, dave, agl
CC=golang-dev
https://golang.org/cl/5577070
2012-01-30 15:30:11 -05:00
Russ Cox 470549d502 go.crypto: initial code
Manual edits to README.
Moved from main Go repository, deleted Makefiles, ran gofix -r go1rename.

Tested with: go test code.google.com/p/go.crypto/...

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5564059
2012-01-25 15:31:12 -05:00