From 2291c00ab2aef934391c23227645121719df4c4b Mon Sep 17 00:00:00 2001 From: Tim Rice Date: Fri, 26 Aug 2005 13:15:19 -0700 Subject: [PATCH] - (tim) [CREDITS LICENCE auth.c configure.ac defines.h includes.h session.c openbsd-compat/Makefile.in openbsd-compat/openbsd-compat.h openbsd-compat/xcrypt.c] New files [openssh/openbsd-compat/port-uw.c openssh/openbsd-compat/port-uw.h] Support long passwords (> 8-char) on UnixWare 7 from Dhiraj Gulati and Ahsan Rashid. Cleanup and testing by tim@. Feedback and OK dtucker@ --- CREDITS | 4 +- ChangeLog | 10 ++- LICENCE | 1 + auth.c | 4 ++ configure.ac | 6 +- defines.h | 6 +- includes.h | 4 ++ openbsd-compat/Makefile.in | 4 +- openbsd-compat/openbsd-compat.h | 3 +- openbsd-compat/port-uw.c | 115 ++++++++++++++++++++++++++++++++ openbsd-compat/port-uw.h | 30 +++++++++ openbsd-compat/xcrypt.c | 4 ++ session.c | 5 ++ 13 files changed, 189 insertions(+), 7 deletions(-) create mode 100644 openbsd-compat/port-uw.c create mode 100644 openbsd-compat/port-uw.h diff --git a/CREDITS b/CREDITS index 2a77b8729..82b9f2210 100644 --- a/CREDITS +++ b/CREDITS @@ -3,6 +3,7 @@ Tatu Ylonen - Creator of SSH Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt, and Dug Song - Creators of OpenSSH +Ahsan Rashid - UnixWare long passwords Alain St-Denis - Irix fix Alexandre Oliva - AIX fixes Andre Lucas - new login code, many fixes @@ -32,6 +33,7 @@ David Del Piero - bug fixes David Hesprich - Configure fixes David Rankin - libwrap, AIX, NetBSD fixes Dag-Erling Smørgrav - Challenge-Response PAM code. +Dhiraj Gulati - UnixWare long passwords Ed Eden - configure fixes Garrick James - configure fixes Gary E. Miller - SCO support @@ -98,5 +100,5 @@ Apologies to anyone I have missed. Damien Miller -$Id: CREDITS,v 1.79 2004/05/26 23:59:31 dtucker Exp $ +$Id: CREDITS,v 1.80 2005/08/26 20:15:20 tim Exp $ diff --git a/ChangeLog b/ChangeLog index 5c9182c23..d0ef8312e 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +20050826 + - (tim) [CREDITS LICENCE auth.c configure.ac defines.h includes.h session.c + openbsd-compat/Makefile.in openbsd-compat/openbsd-compat.h + openbsd-compat/xcrypt.c] New files [openssh/openbsd-compat/port-uw.c + openssh/openbsd-compat/port-uw.h] Support long passwords (> 8-char) + on UnixWare 7 from Dhiraj Gulati and Ahsan Rashid. Cleanup and testing + by tim@. Feedback and OK dtucker@ + 20050823 - (dtucker) [regress/test-exec.sh] Do not prepend an extra "/" to a fully- qualified sshd pathname since some systems (eg Cygwin) may consider "/foo" @@ -2953,4 +2961,4 @@ - (djm) Trim deprecated options from INSTALL. Mention UsePAM - (djm) Fix quote handling in sftp; Patch from admorten AT umich.edu -$Id: ChangeLog,v 1.3878 2005/08/24 00:18:21 tim Exp $ +$Id: ChangeLog,v 1.3879 2005/08/26 20:15:19 tim Exp $ diff --git a/LICENCE b/LICENCE index 5def839e5..ac3634f22 100644 --- a/LICENCE +++ b/LICENCE @@ -204,6 +204,7 @@ OpenSSH contains no GPL code. William Jones Darren Tucker Sun Microsystems + The SCO Group * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions diff --git a/auth.c b/auth.c index 82fe8f06b..d62d8ff22 100644 --- a/auth.c +++ b/auth.c @@ -97,7 +97,11 @@ allowed_user(struct passwd * pw) /* grab passwd field for locked account check */ #ifdef USE_SHADOW if (spw != NULL) +#ifdef HAVE_LIBIAF + passwd = get_iaf_password(pw); +#else passwd = spw->sp_pwdp; +#endif /* HAVE_LIBIAF */ #else passwd = pw->pw_passwd; #endif diff --git a/configure.ac b/configure.ac index f1588c693..c9c8218d3 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -# $Id: configure.ac,v 1.288 2005/08/24 00:11:26 tim Exp $ +# $Id: configure.ac,v 1.289 2005/08/26 20:15:20 tim Exp $ # # Copyright (c) 1999-2004 Damien Miller # @@ -446,6 +446,8 @@ mips-sony-bsd|mips-sony-newsos4) ;; # UnixWare 7.x, OpenUNIX 8 *-*-sysv5*) + check_for_libcrypt_later=1 + AC_DEFINE(UNIXWARE_LONG_PASSWORDS, 1, [Support passwords > 8 chars]) AC_DEFINE(USE_PIPES) AC_DEFINE(SETEUID_BREAKS_SETUID) AC_DEFINE(BROKEN_SETREUID) @@ -643,6 +645,7 @@ AC_CHECK_HEADERS( \ getopt.h \ glob.h \ ia.h \ + iaf.h \ lastlog.h \ limits.h \ login.h \ @@ -1721,6 +1724,7 @@ if test "x$check_for_libcrypt_later" = "x1"; then AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt") fi +AC_CHECK_LIB(iaf, ia_openinfo) ### Configure cryptographic random number support diff --git a/defines.h b/defines.h index 670fc3fe5..8d3617d06 100644 --- a/defines.h +++ b/defines.h @@ -25,7 +25,7 @@ #ifndef _DEFINES_H #define _DEFINES_H -/* $Id: defines.h,v 1.125 2005/08/24 00:18:21 tim Exp $ */ +/* $Id: defines.h,v 1.126 2005/08/26 20:15:20 tim Exp $ */ /* Constants */ @@ -688,6 +688,10 @@ struct winsize { # define CUSTOM_SYS_AUTH_PASSWD 1 #endif +#ifdef UNIXWARE_LONG_PASSWORDS +# define CUSTOM_SYS_AUTH_PASSWD 1 +#endif + /* HP-UX 11.11 */ #ifdef BTMP_FILE # define _PATH_BTMP BTMP_FILE diff --git a/includes.h b/includes.h index 9408fec9a..fa65aa38d 100644 --- a/includes.h +++ b/includes.h @@ -169,6 +169,10 @@ static /**/const char *const rcsid[] = { (const char *)rcsid, "\100(#)" msg } # include #endif +#ifdef HAVE_IAF_H +# include +#endif + #ifdef HAVE_TMPDIR_H # include #endif diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in index c6e08867c..6f5ee2845 100644 --- a/openbsd-compat/Makefile.in +++ b/openbsd-compat/Makefile.in @@ -1,4 +1,4 @@ -# $Id: Makefile.in,v 1.34 2005/06/09 11:45:11 dtucker Exp $ +# $Id: Makefile.in,v 1.35 2005/08/26 20:15:20 tim Exp $ sysconfdir=@sysconfdir@ piddir=@piddir@ @@ -20,7 +20,7 @@ OPENBSD=base64.o basename.o bindresvport.o daemon.o dirname.o getcwd.o getgroupl COMPAT=bsd-arc4random.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-snprintf.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o -PORTS=port-irix.o port-aix.o +PORTS=port-irix.o port-aix.o port-uw.o .c.o: $(CC) $(CFLAGS) $(CPPFLAGS) -c $< diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h index e66f5ec55..ba68bc27e 100644 --- a/openbsd-compat/openbsd-compat.h +++ b/openbsd-compat/openbsd-compat.h @@ -1,4 +1,4 @@ -/* $Id: openbsd-compat.h,v 1.29 2005/06/17 11:15:21 dtucker Exp $ */ +/* $Id: openbsd-compat.h,v 1.30 2005/08/26 20:15:20 tim Exp $ */ /* * Copyright (c) 1999-2003 Damien Miller. All rights reserved. @@ -173,5 +173,6 @@ char *shadow_pw(struct passwd *pw); #include "bsd-cygwin_util.h" #include "port-irix.h" #include "port-aix.h" +#include "port-uw.h" #endif /* _OPENBSD_COMPAT_H */ diff --git a/openbsd-compat/port-uw.c b/openbsd-compat/port-uw.c new file mode 100644 index 000000000..cbc3f686b --- /dev/null +++ b/openbsd-compat/port-uw.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2005 The SCO Group. All rights reserved. + * Copyright (c) 2005 Tim Rice. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "includes.h" + +#ifdef UNIXWARE_LONG_PASSWORDS +#ifdef HAVE_CRYPT_H +#include +#endif +#include "packet.h" +#include "buffer.h" +#include "log.h" +#include "servconf.h" +#include "auth.h" +#include "auth-options.h" + +int nischeck(char *); + +int +sys_auth_passwd(Authctxt *authctxt, const char *password) +{ + struct passwd *pw = authctxt->pw; + char *encrypted_password; + char *salt; + + /* Just use the supplied fake password if authctxt is invalid */ + char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd; + + /* Check for users with no password. */ + if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0) + return (1); + + salt = (pw_password[0] && pw_password[1]) ? pw_password : "xx"; + if (nischeck(pw->pw_name)) + return(strcmp(crypt(password, salt), pw_password) == 0); + else + return(strcmp(bigcrypt(password, salt), pw_password) == 0); +} + +int +nischeck(char *namep) +{ + char password_file[] = "/etc/passwd"; + FILE *fd; + struct passwd *ent = NULL; + + if ((fd = fopen (password_file, "r")) == NULL) { + /* + * If the passwd file has dissapeared we are in a bad state. + * However, returning 0 will send us back through the + * authentication scheme that has checked the ia database for + * passwords earlier. + */ + return(0); + } + + /* + * fgetpwent() only reads from password file, so we know for certain + * that the user is local. + */ + while (ent = fgetpwent(fd)) { + if (strcmp (ent->pw_name, namep) == 0) { + /* Local user */ + fclose (fd); + return(0); + } + } + + fclose (fd); + return (1); +} + +#endif /* UNIXWARE_LONG_PASSWORDS */ + +#ifdef HAVE_LIBIAF +char * +get_iaf_password(struct passwd *pw) +{ + char *pw_password = NULL; + + uinfo_t uinfo; + if (!ia_openinfo(pw->pw_name,&uinfo)) { + ia_get_logpwd(uinfo, &pw_password); + if (pw_password == NULL) + fatal("Unable to get the shadow passwd"); + ia_closeinfo(uinfo); + return pw_password; + } + else + fatal("Unable to open the shadow passwd file"); +} +#endif /* HAVE_LIBIAF */ + diff --git a/openbsd-compat/port-uw.h b/openbsd-compat/port-uw.h new file mode 100644 index 000000000..f16bb5e5c --- /dev/null +++ b/openbsd-compat/port-uw.h @@ -0,0 +1,30 @@ +/* + * Copyright (c) 2005 Tim Rice. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "includes.h" + +#ifdef HAVE_LIBIAF +char * get_iaf_password(struct passwd *pw); +#endif /* HAVE_LIBIAF */ + diff --git a/openbsd-compat/xcrypt.c b/openbsd-compat/xcrypt.c index c3cea3c86..453203270 100644 --- a/openbsd-compat/xcrypt.c +++ b/openbsd-compat/xcrypt.c @@ -91,7 +91,11 @@ shadow_pw(struct passwd *pw) struct spwd *spw = getspnam(pw->pw_name); if (spw != NULL) +#ifdef HAVE_LIBIAF + pw_password = get_iaf_password(pw); +#else pw_password = spw->sp_pwdp; +#endif /* HAVE_LIBIAF */ # endif # if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) struct passwd_adjunct *spw; diff --git a/session.c b/session.c index 95084aec6..98bd3121c 100644 --- a/session.c +++ b/session.c @@ -1334,6 +1334,11 @@ do_setusercontext(struct passwd *pw) # ifdef _AIX aix_usrinfo(pw); # endif /* _AIX */ +# ifdef HAVE_LIBIAF + if (set_id(pw->pw_name) != 0) { + exit(1); + } +# endif /* Permanently switch to the desired uid. */ permanently_set_uid(pw); #endif