mirror of git://anongit.mindrot.org/openssh.git
137 lines
5.2 KiB
Plaintext
137 lines
5.2 KiB
Plaintext
Programming:
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- Grep for 'XXX' comments and fix
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- Link order is incorrect for some systems using Kerberos 4 and AFS. Result
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is multiple inclusion of DES symbols. Holger Trapp
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<holger.trapp@hrz.tu-chemnitz.de> reports that changing the configure
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generated link order from:
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-lresolv -lkrb -lz -lnsl -lutil -lkafs -lkrb -ldes -lcrypto
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to:
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-lresolv -lkrb -lz -lnsl -lutil -lcrypto -lkafs -lkrb -ldes
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fixing the problem.
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- Write a test program that calls stat() to search for EGD/PRNGd socket
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rather than use the (non-portable) "test -S".
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- Replacement for setproctitle() - HP-UX support only currently
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- Handle changing passwords for the non-PAM expired password case
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- Improve PAM support (a pam_lastlog module will cause sshd to exit)
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and maybe support alternate forms of authentications like OPIE via
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pam?
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- Rework PAM ChallengeResponseAuthentication
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- Use kbdint request packet with 0 prompts for informational messages
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- Use different PAM service name for kbdint vs regular auth (suggest from
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Solar Designer)
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- Ability to select which ChallengeResponseAuthentications may be used
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and order to try them in e.g. "ChallengeResponseAuthentication skey, pam"
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- Complete Tru64 SIA support
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- It looks like we could merge it into the password auth code to cut down
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on diff size. Maybe PAM password auth too?
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- Finish integrating kernel-level auditing code for IRIX and SOLARIS
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(Gilbert.r.loomis@saic.com)
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- sftp-server: Rework to step down to 32bit ints if the platform
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lacks 'long long' == 64bit (Notable SCO w/ SCO compiler)
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- Linux hangs for 20 seconds when you do "sleep 20&exit". All current
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solutions break scp or leaves processes hanging around after the ssh
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connection has ended. It seems to be linked to two things. One
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select() under Linux is not as nice as others, and two the children
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of the shell are not killed on exiting the shell.
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A short run-down of what happens:
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- The shell starts up, and starts its own session. As a side-effect, it
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gets its own process group.
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- The child forks off sleep, and because it's in the background, puts it
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into its own process group. The sleep command inherits a copy of the
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shell's descriptor for the tty as its stdout.
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- The shell exits, but doesn't SIGHUP all of its child PIDs like it probably
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should(?)
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- The sshd server attempts to read from the master side of the pty, and
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while there are still process with the pty open, no EOF is produced.
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- The sleep command exits, closes its descriptor, sshd detects the EOF, and
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the connection gets closed.
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Ways we've tried fixing this in sshd, and why they didn't work out:
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- SIGHUP the sshd's process group.
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- The shell is in its own process group.
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- Track process group IDs of all children before we reap them (via an extra
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field in Session structures which holds the pgid for each child pid), and
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SIGHUP the pgid when we reap.
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- Background commands are in yet another process group.
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- Close the connection when the child dies.
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- Background commands may need to write data to the connection. Also
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prematurely truncates output from some commands (scp server, the
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famous "dd if=/dev/zero bs=1000 count=100" case).
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Known workarounds:
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- bash: shopt huponexit on
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- tcsh: none
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- zsh: setopt HUP (usually the default setting)
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(taken from email from Jason Stone to openssh-unix-dev, 5 May 2001)
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- pdksh: ?
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This appears to affect NetKit rsh under Linux as well: it behaves the same
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with 'sleep 20 & exit'.
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- Build an automated test suite
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- 64-bit builds on HP-UX 11.X (stevesk@pobox.com):
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- utmp/wtmp get corrupted (something in loginrec?)
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- can't build with PAM (no 64-bit libpam yet)
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Documentation:
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- More and better
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- Install FAQ?
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- General FAQ on S/Key, TIS, RSA, RSA2, DSA, etc and suggestions on when it
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would be best to use them.
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- Create a Documentation/ directory?
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Clean up configure/makefiles:
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- Clean up configure.ac - There are a few double #defined variables
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left to do. HAVE_LOGIN is one of them. Consider NOT looking for
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information in wtmpx or utmpx or any of that stuff if it's not detected
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from the start
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- Fails to compile when cross compile.
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(vinschen@redhat.com)
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- Replace the whole u_intXX_t evilness in acconfig.h with something better???
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- Consider splitting the u_intXX_t test for sys/bitype.h into seperate test
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to allow people to (right/wrongfully) link against Bind directly.
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- Consider splitting configure.ac into seperate files which do logically
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similar tests. E.g move all the type detection stuff into one file,
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entropy related stuff into another.
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Packaging:
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- Solaris: Update packaging scripts and build new sysv startup scripts
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Ideally the package metadata should be generated by autoconf.
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(gilbert.r.loomis@saic.com)
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- HP-UX: Provide DEPOT package scripts.
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(gilbert.r.loomis@saic.com)
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PrivSep Issues:
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- mmap() issues.
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+ /dev/zero solution (Solaris)
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+ No/broken MAP_ANON (Irix)
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+ broken /dev/zero parse (Linux)
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- PAM
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+ See above PAM notes
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- AIX
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+ usrinfo() does not set TTY, but only required for legicy systems. Works
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with PrivSep.
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- OSF
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+ SIA is broken
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- Cygwin
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+ Privsep for Pre-auth only (no fd passing)
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$Id: TODO,v 1.51 2002/09/05 06:32:03 djm Exp $
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