Age | Commit message (Collapse) | Author |
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- djm@cvs.openbsd.org 2005/07/17 06:49:04
[channels.c channels.h session.c session.h]
Fix a number of X11 forwarding channel leaks:
1. Refuse multiple X11 forwarding requests on the same session
2. Clean up all listeners after a single_connection X11 forward, not just
the one that made the single connection
3. Destroy X11 listeners when the session owning them goes away
testing and ok dtucker@
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[channels.h]
race when efd gets closed while there is still buffered data:
change CHANNEL_EFD_OUTPUT_ACTIVE()
1) c->efd must always be valid AND
2a) no EOF has been seen OR
2b) there is buffered data
report, initial fix and testing Chuck Cranor
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- djm@cvs.openbsd.org 2005/06/16 03:38:36
[channels.c channels.h clientloop.c clientloop.h ssh.c]
move x11_get_proto from ssh.c to clientloop.c, to make muliplexed xfwd
easier later; ok deraadt@
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[auth-options.c channels.c channels.h clientloop.c compat.c compat.h]
[misc.c misc.h readconf.c readconf.h servconf.c ssh.1 ssh.c ssh_config.5]
[sshd_config.5]
bz#413: allow optional specification of bind address for port forwardings.
Patch originally by Dan Astorian, but worked on by several people
Adds GatewayPorts=clientspecified option on server to allow remote
forwards to bind to client-specified ports.
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[channels.c channels.h clientloop.c]
fix some window size change bugs for multiplexed connections: windows sizes
were not being updated if they had changed after ~^Z suspends and SIGWINCH
was not being processed unless the first connection had requested a tty;
ok markus
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[channels.c channels.h clientloop.c misc.c misc.h serverloop.c ssh-agent.c]
some signed/unsigned int comparison cleanups; markus@ ok
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[channels.c channels.h clientloop.c clientloop.h includes.h readconf.c]
[readconf.h scp.1 sftp.1 ssh.1 ssh.c ssh_config.5]
implement session multiplexing in the client (the server has supported
this since 2.0); ok markus@
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[channels.c channels.h clientloop.c serverloop.c ssh.1]
bz #756: add support for the cancel-tcpip-forward request for the server and
the client (through the ~C commandline). reported by z3p AT twistedmatrix.com;
ok markus@
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[channels.c channels.h clientloop.c]
move client only agent code to clientloop.c
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[channels.c channels.h clientloop.c serverloop.c]
move channel counter to u_int
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[channels.c channels.h session.c session.h]
display, screen, row, col, xpixel, ypixel are u_int; markus ok
- (bal) Also fixed IPADDR_IN_DISPLAY case where display, screen, row, col,
xpixel are u_int.
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[channels.c channels.h session.c]
move creation of agent socket to session.c; no need for uidswapping
in channel.c.
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[channels.h]
CHANNEL_EFD_OUTPUT_ACTIVE is false for CHAN_CLOSE_RCVD, too
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[channels.c channels.h compat.c compat.h nchan.c]
don't send stderr data after EOF, accept this from older known (broken)
sshd servers only, fixes http://bugzilla.mindrot.org/show_bug.cgi?id=179
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[auth-krb5.c auth-options.h auth.h authfd.h authfile.h bufaux.h buffer.h
channels.h cipher.h compat.h compress.h crc32.h deattack.c getput.h
groupaccess.c misc.c mpaux.h packet.h readconf.h rsa.h scard.h
servconf.h ssh-agent.c ssh.h ssh2.h sshpty.h sshtty.c ttymodes.h
uuencode.c xmalloc.h]
$OpenBSD$ and RCSID() cleanup: don't use RCSID() in .h files; add
missing RCSID() to .c files and remove dup /*$OpenBSD$*/ from .c
files. ok markus@
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[channels.h session.c ssh.c]
increase the SSH v2 window size to 4 packets. comsumes a little
bit more memory for slow receivers but increases througput.
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[channels.c channels.h ssh.c]
merge channel_request() into channel_request_start()
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[channels.c channels.h ssh.c]
generic callbacks are not really used, remove and
add a callback for msg of type SSH2_MSG_CHANNEL_OPEN_CONFIRMATION
ok djm@
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[channels.c channels.h]
remove unused channel_input_channel_request
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[channels.c channels.h serverloop.c ssh.c]
wrapper for channel_setup_fwd_listener
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[channels.h nchan.c]
(c) 2002
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[channels.c channels.h nchan.c]
remove function pointers for events, remove chan_init*; ok provos@
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[channels.h nchan.c]
add chan_set_[io]state(), order states, state is now an u_int,
simplifies debugging messages; ok provos@
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[auth2.c auth2-chall.c channels.c channels.h clientloop.c dispatch.c dispatch.h kex.c kex.h serverloop.c ssh.c sshconnect2.c]
remove plen from the dispatch fn. it's no longer used.
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[auth2.c auth2-chall.c channels.c channels.h clientloop.c dispatch.c]
[dispatch.h kex.c kex.h packet.c packet.h serverloop.c ssh.c]
[sshconnect2.c]
Conformance fix: we should send failing packet sequence number when
responding with a SSH_MSG_UNIMPLEMENTED message. Spotted by
yakk@yakk.dot.net; ok markus@
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[channels.c channels.h session.c]
setup x11 listen socket for just one connect if the client requests so.
(v2 only, but the openssh client does not support this feature).
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- stevesk@cvs.openbsd.org 2001/11/29 14:10:51
[channels.h channels.c session.c]
sshd X11 fake server will now listen on localhost by default:
$ echo $DISPLAY
localhost:12.0
$ netstat -an|grep 6012
tcp 0 0 127.0.0.1.6012 *.* LISTEN
tcp6 0 0 ::1.6012 *.* LISTEN
sshd_config gatewayports=yes can be used to revert back to the old
behavior. will control this with another option later. ok markus@
- stevesk@cvs.openbsd.org 2001/12/19 08:43:11
[includes.h session.c]
handle utsname.nodename case for FamilyLocal X authorization; ok markus@
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[channels.h]
remove dead function prototype; ok markus@
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[channels.h]
crank c->path to 256 so they can hold a full hostname; dwd@bell-labs.com
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- markus@cvs.openbsd.org 2001/10/10 22:18:47
[channels.c channels.h clientloop.c nchan.c serverloop.c]
[session.c session.h]
try to keep channels open until an exit-status message is sent.
don't kill the login shells if the shells stdin/out/err is closed.
this should now work:
ssh -2n localhost 'exec > /dev/null 2>&1; sleep 10; exit 5'; echo ?
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[channels.c channels.h serverloop.c session.c session.h]
simplify session close: no more delayed session_close, no more blocking wait() calls.
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[channels.c channels.h]
avoid possible FD_ISSET overflow for channels established
during channnel_after_select() (used for dynamic channels).
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[channels.c channels.h ssh.c sshd.c]
remove ugliness; vp@drexel.edu via angelos
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[channels.c channels.h clientloop.c]
try to fix agent-forwarding-backconnection-bug, as seen on HPUX,
for example; with Lutz.Jaenicke@aet.TU-Cottbus.DE,
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[channels.c channels.h clientloop.c nchan.c serverloop.c]
keep track of both maxfd and the size of the malloc'ed fdsets.
update maxfd if maxfd gets closed.
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[channels.c channels.h serverloop.c]
improve cleanup/exit logic in ssh2:
stop listening to channels, detach channel users (e.g. sessions).
wait for children (i.e. dying sessions), send exit messages,
cleanup all channels.
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[channels.c channels.h clientloop.c]
adress -> address; ok markus@
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[authfd.h authfile.h auth.h auth-options.h bufaux.h buffer.h
canohost.h channels.h cipher.h clientloop.h compat.h compress.h
crc32.h deattack.h dh.h dispatch.h groupaccess.c groupaccess.h
hostfile.h kex.h key.h log.c log.h mac.h misc.c misc.h mpaux.h
packet.h radix.h readconf.h readpass.h rsa.h servconf.h serverloop.h
session.h sftp-common.c sftp-common.h sftp-glob.h sftp-int.h
sshconnect.h ssh-dss.h sshlogin.h sshpty.h ssh-rsa.h sshtty.h
tildexpand.h uidswap.h uuencode.h xmalloc.h]
remove comments from .h, since they are cut&paste from the .c files
and out of sync
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[atomicio.h authfd.h authfile.h auth.h auth-options.h bufaux.h
buffer.h canohost.h channels.h cipher.h clientloop.h compat.h
compress.h crc32.h deattack.h dh.h dispatch.h groupaccess.h
hostfile.h kex.h key.h log.h mac.h match.h misc.h mpaux.h packet.h
radix.h readconf.h readpass.h rsa.h]
prototype pedant. not very creative...
- () -> (void)
- no variable names
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[channels.c channels.h cipher.c clientloop.c compat.c compat.h
hostfile.c kex.c kex.h key.c key.h nchan.c packet.c serverloop.c
session.c session.h sftp-server.c ssh-add.c ssh-agent.c uuencode.h]
update copyright for 2001
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[channels.c channels.h clientloop.c packet.c serverloop.c]
move from channel_stop_listening to channel_free_all,
call channel_free_all before calling waitpid() in serverloop.
fixes the utmp handling; report from Lutz.Jaenicke@aet.TU-Cottbus.DE
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[channels.h]
bad //-style comment; thx to stevev@darkwing.uoregon.edu
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[channels.c channels.h session.c]
switch uid when cleaning up tmp files and sockets; reported by
zen-parse@gmx.net on bugtraq
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[channels.c channels.h session.c]
use fatal_register_cleanup instead of atexit, sync with x11 authdir
handling
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out of ssh Attic)
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[channels.c channels.h nchan.c]
undo broken channel fix and try a different one. there
should be still some select errors...
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[channels.c channels.h clientloop.c nchan.c nchan.h serverloop.c ssh.c]
move to Channel **channels (instead of Channel *channels), fixes realloc
problems. channel_new now returns a Channel *, favour Channel * over
channel id. remove old channel_allocate interface.
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[channels.c channels.h servconf.c servconf.h serverloop.c sshd.8]
Add options ClientAliveInterval and ClientAliveCountMax to sshd.
This gives the ability to do a "keepalive" via the encrypted channel
which can't be spoofed (unlike TCP keepalives). Useful for when you want
to use ssh connections to authenticate people for something, and know
relatively quickly when they are no longer authenticated. Disabled
by default (of course). ok markus@
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[buffer.c channels.c channels.h readconf.c ssh.c]
allow the ssh client act as a SOCKS4 proxy (dynamic local
portforwarding). work by Dan Kaminsky <dankamin@cisco.com> and me.
thanks to Dan for this great patch: use 'ssh -D 1080 host' and make
netscape use localhost:1080 as a socks proxy.
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