Phill Camp <P.S.S.Camp@ukc.ac.uk> - login code fix
Rip Loomis <loomisg@cist.saic.com> - Solaris package support, fixes
SAKAI Kiyotaka <ksakai@kso.netwk.ntt-at.co.jp> - Multiple bugfixes
-Simon Wilkinson <sxw@dcs.ed.ac.uk> - PAM fixes
+Simon Wilkinson <sxw@dcs.ed.ac.uk> - PAM fixes, Compat with MIT KrbV
Svante Signell <svante.signell@telia.com> - Bugfixes
Thomas Neumann <tom@smart.ruhr.de> - Shadow passwords
Tim Rice <tim@multitalents.net> - Portability & SCO fixes
+20020413
+ - (djm) Add KrbV support patch from Simon Wilkinson <simon@sxw.org.uk>
+
20020412
- (stevesk) [auth-sia.[ch]] add BSD license from Chris Adams
- (tim) [configure.ac] add <sys/types.h> to msghdr tests. Change -L
SSHOBJS= ssh.o sshconnect.o sshconnect1.o sshconnect2.o sshtty.o readconf.o clientloop.o
-SSHDOBJS= sshd.o auth.o auth1.o auth2.o auth-chall.o auth2-chall.o auth-rhosts.o auth-options.o auth-krb4.o auth-pam.o auth2-pam.o auth-passwd.o auth-rsa.o auth-rh-rsa.o auth-sia.o sshpty.o sshlogin.o loginrec.o servconf.o serverloop.o md5crypt.o session.o groupaccess.o auth-skey.o auth-bsdauth.o monitor_mm.o monitor.o
+SSHDOBJS= sshd.o auth.o auth1.o auth2.o auth-chall.o auth2-chall.o auth-rhosts.o auth-options.o auth-krb4.o auth-krb5.o auth-pam.o auth2-pam.o auth-passwd.o auth-rsa.o auth-rh-rsa.o auth-sia.o sshpty.o sshlogin.o loginrec.o servconf.o serverloop.o md5crypt.o session.o groupaccess.o auth-skey.o auth-bsdauth.o monitor_mm.o monitor.o
MANPAGES = scp.1.out ssh-add.1.out ssh-agent.1.out ssh-keygen.1.out ssh-keyscan.1.out ssh.1.out sshd.8.out sftp-server.8.out sftp.1.out
MANPAGES_IN = scp.1 ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh.1 sshd.8 sftp-server.8 sftp.1
/* Define if compiler implements __func__ */
#undef HAVE___func__
+/* Define if you want Kerberos 5 support */
+#undef KRB5
+
+/* Define this if you are using the Heimdal version of Kerberos V5 */
+#undef HEIMDAL
+
/* Define if you want Kerberos 4 support */
#undef KRB4
#ifdef KRB5
#include <krb5.h>
+#ifndef HEIMDAL
+#define krb5_get_err_text(context,code) error_message(code)
+#endif /* !HEIMDAL */
extern ServerOptions options;
goto err;
fd = packet_get_connection_in();
+#ifdef HEIMDAL
problem = krb5_auth_con_setaddrs_from_fd(authctxt->krb5_ctx,
authctxt->krb5_auth_ctx, &fd);
+#else
+ problem = krb5_auth_con_genaddrs(authctxt->krb5_ctx,
+ authctxt->krb5_auth_ctx,fd,
+ KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR |
+ KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR);
+#endif
if (problem)
goto err;
if (problem)
goto err;
+#ifdef HEIMDAL
problem = krb5_copy_principal(authctxt->krb5_ctx, ticket->client,
&authctxt->krb5_user);
+#else
+ problem = krb5_copy_principal(authctxt->krb5_ctx,
+ ticket->enc_part2->client,
+ &authctxt->krb5_user);
+#endif
if (problem)
goto err;
krb5_error_code problem;
krb5_ccache ccache = NULL;
char *pname;
+ krb5_creds **creds;
if (authctxt->pw == NULL || authctxt->krb5_user == NULL)
return (0);
temporarily_use_uid(authctxt->pw);
+#ifdef HEIMDAL
problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, &ccache);
+#else
+{
+ char ccname[40];
+ int tmpfd;
+
+ snprintf(ccname,sizeof(ccname),"FILE:/tmp/krb5cc_%d_XXXXXX",geteuid());
+
+ if ((tmpfd = mkstemp(ccname+strlen("FILE:")))==-1) {
+ log("mkstemp(): %.100s", strerror(errno));
+ problem = errno;
+ goto fail;
+ }
+ if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) {
+ log("fchmod(): %.100s", strerror(errno));
+ close(tmpfd);
+ problem = errno;
+ goto fail;
+ }
+ close(tmpfd);
+ problem = krb5_cc_resolve(authctxt->krb5_ctx, ccname, &ccache);
+}
+#endif
if (problem)
goto fail;
if (problem)
goto fail;
+#ifdef HEIMDAL
problem = krb5_rd_cred2(authctxt->krb5_ctx, authctxt->krb5_auth_ctx,
ccache, tgt);
if (problem)
goto fail;
+#else
+ problem = krb5_rd_cred(authctxt->krb5_ctx, authctxt->krb5_auth_ctx,
+ tgt, &creds, NULL);
+ if (problem)
+ goto fail;
+ problem = krb5_cc_store_cred(authctxt->krb5_ctx, ccache, *creds);
+ if (problem)
+ goto fail;
+#endif
authctxt->krb5_fwd_ccache = ccache;
ccache = NULL;
int
auth_krb5_password(Authctxt *authctxt, const char *password)
{
+#ifndef HEIMDAL
+ krb5_creds creds;
+ krb5_principal server;
+ char ccname[40];
+ int tmpfd;
+#endif
krb5_error_code problem;
if (authctxt->pw == NULL)
if (problem)
goto out;
+#ifdef HEIMDAL
problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops,
&authctxt->krb5_fwd_ccache);
if (problem)
if (problem)
goto out;
+#else
+ problem = krb5_get_init_creds_password(authctxt->krb5_ctx, &creds,
+ authctxt->krb5_user, (char *)password, NULL, NULL, 0, NULL, NULL);
+ if (problem)
+ goto out;
+
+ problem = krb5_sname_to_principal(authctxt->krb5_ctx, NULL, NULL,
+ KRB5_NT_SRV_HST, &server);
+ if (problem)
+ goto out;
+
+ restore_uid();
+ problem = krb5_verify_init_creds(authctxt->krb5_ctx, &creds, server,
+ NULL, NULL, NULL);
+ krb5_free_principal(authctxt->krb5_ctx, server);
+ temporarily_use_uid(authctxt->pw);
+ if (problem)
+ goto out;
+
+ if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user,
+ authctxt->pw->pw_name)) {
+ problem = -1;
+ goto out;
+ }
+
+ snprintf(ccname,sizeof(ccname),"FILE:/tmp/krb5cc_%d_XXXXXX",geteuid());
+
+ if ((tmpfd = mkstemp(ccname+strlen("FILE:")))==-1) {
+ log("mkstemp(): %.100s", strerror(errno));
+ problem = errno;
+ goto out;
+ }
+
+ if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) {
+ log("fchmod(): %.100s", strerror(errno));
+ close(tmpfd);
+ problem = errno;
+ goto out;
+ }
+ close(tmpfd);
+
+ problem = krb5_cc_resolve(authctxt->krb5_ctx, ccname, &authctxt->krb5_fwd_ccache);
+ if (problem)
+ goto out;
+
+ problem = krb5_cc_initialize(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache,
+ authctxt->krb5_user);
+ if (problem)
+ goto out;
+
+ problem= krb5_cc_store_cred(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache,
+ &creds);
+ if (problem)
+ goto out;
+#endif
+
authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache);
out:
restore_uid();
if (problem) {
- if (authctxt->krb5_ctx != NULL)
+ if (authctxt->krb5_ctx != NULL && problem!=-1)
debug("Kerberos password authentication failed: %s",
krb5_get_err_text(authctxt->krb5_ctx, problem));
else
]
)
-# Check whether user wants Kerberos support
+# Check whether user wants Kerberos 5 support
+KRB5_MSG="no"
+AC_ARG_WITH(kerberos5,
+ [ --with-kerberos5=PATH Enable Kerberos 5 support],
+ [
+ if test "x$withval" != "xno" ; then
+ if test "x$withval" = "xyes" ; then
+ KRB5ROOT="/usr/local"
+ else
+ KRB5ROOT=${withval}
+ fi
+ CPPFLAGS="$CPPFLAGS -I${KRB5ROOT}/include"
+ LDFLAGS="$LDFLAGS -L${KRB5ROOT}/lib"
+ AC_DEFINE(KRB5)
+ KRB5_MSG="yes"
+ AC_MSG_CHECKING(whether we are using Heimdal)
+ AC_TRY_COMPILE([ #include <krb5.h> ],
+ [ char *tmp = heimdal_version; ],
+ [ AC_MSG_RESULT(yes)
+ AC_DEFINE(HEIMDAL)
+ K5LIBS="-lkrb5 -ldes -lcom_err -lasn1 -lroken"
+ ],
+ [ AC_MSG_RESULT(no)
+ K5LIBS="-lkrb5 -lk5crypto -lcom_err"
+ ]
+ )
+ if test ! -z "$need_dash_r" ; then
+ LDFLAGS="$LDFLAGS -R${KRB5ROOT}/lib"
+ fi
+ if test ! -z "$blibpath" ; then
+ blibpath="$blibpath:${KRB5ROOT}/lib"
+ fi
+ AC_CHECK_LIB(resolv, dn_expand, , )
+
+ KRB5=yes
+ fi
+ ]
+)
+# Check whether user wants Kerberos 4 support
KRB4_MSG="no"
AC_ARG_WITH(kerberos4,
[ --with-kerberos4=PATH Enable Kerberos 4 support],
fi
]
)
-LIBS="$LIBS $KLIBS"
+LIBS="$LIBS $KLIBS $K5LIBS"
# Looking for programs, paths and files
AC_ARG_WITH(rsh,
echo " Manpage format: $MANTYPE"
echo " PAM support: ${PAM_MSG}"
echo " KerberosIV support: $KRB4_MSG"
+echo " KerberosV support: $KRB5_MSG"
echo " Smartcard support: $SCARD_MSG"
echo " AFS support: $AFS_MSG"
echo " S/KEY support: $SKEY_MSG"
#include "includes.h"
RCSID("$OpenBSD: servconf.c,v 1.105 2002/03/20 19:12:24 stevesk Exp $");
-#if defined(KRB4) || defined(KRB5)
+#if defined(KRB4)
+#include <krb.h>
+#endif
+#if defined(KRB5)
+#ifdef HEIMDAL
#include <krb.h>
+#else
+/* Bodge - but then, so is using the kerberos IV KEYFILE to get a Kerberos V
+ * keytab */
+#define KEYFILE "/etc/krb5.keytab"
+#endif
#endif
#ifdef AFS
#include <kafs.h>
#endif
#ifdef KRB5
#include <krb5.h>
+#ifndef HEIMDAL
+#define krb5_get_err_text(context,code) error_message(code)
+#endif /* !HEIMDAL */
#endif
#ifdef AFS
#include <kafs.h>
ret = 0;
goto out;
}
+
+ problem = krb5_auth_con_init(*context, auth_context);
+ if (problem) {
+ debug("Kerberos v5: krb5_auth_con_init failed");
+ ret = 0;
+ goto out;
+ }
+
+#ifndef HEIMDAL
+ problem = krb5_auth_con_setflags(*context, *auth_context,
+ KRB5_AUTH_CONTEXT_RET_TIME);
+ if (problem) {
+ debug("Keberos v5: krb5_auth_con_setflags failed");
+ ret = 0;
+ goto out;
+ }
+#endif
tkfile = krb5_cc_default_name(*context);
if (strncmp(tkfile, "FILE:", 5) == 0)
if (reply != NULL)
krb5_free_ap_rep_enc_part(*context, reply);
if (ap.length > 0)
+#ifdef HEIMDAL
krb5_data_free(&ap);
+#else
+ krb5_free_data_contents(*context, &ap);
+#endif
return (ret);
}
krb5_data outbuf;
krb5_ccache ccache = NULL;
krb5_creds creds;
+#ifdef HEIMDAL
krb5_kdc_flags flags;
+#else
+ int forwardable;
+#endif
const char *remotehost;
memset(&creds, 0, sizeof(creds));
fd = packet_get_connection_in();
+#ifdef HEIMDAL
problem = krb5_auth_con_setaddrs_from_fd(context, auth_context, &fd);
+#else
+ problem = krb5_auth_con_genaddrs(context, auth_context, fd,
+ KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR |
+ KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR);
+#endif
if (problem)
goto out;
if (problem)
goto out;
+ remotehost = get_canonical_hostname(1);
+
+#ifdef HEIMDAL
problem = krb5_build_principal(context, &creds.server,
strlen(creds.client->realm), creds.client->realm,
"krbtgt", creds.client->realm, NULL);
+#else
+ problem = krb5_build_principal(context, &creds.server,
+ creds.client->realm.length, creds.client->realm.data,
+ "host", remotehost, NULL);
+#endif
if (problem)
goto out;
creds.times.endtime = 0;
+#ifdef HEIMDAL
flags.i = 0;
flags.b.forwarded = 1;
flags.b.forwardable = krb5_config_get_bool(context, NULL,
"libdefaults", "forwardable", NULL);
-
- remotehost = get_canonical_hostname(1);
-
problem = krb5_get_forwarded_creds(context, auth_context,
ccache, flags.i, remotehost, &creds, &outbuf);
+#else
+ forwardable = 1;
+ problem = krb5_fwd_tgt_creds(context, auth_context, remotehost,
+ creds.client, creds.server, ccache, forwardable, &outbuf);
+#endif
+
if (problem)
goto out;