141 lines
4.2 KiB
Diff
141 lines
4.2 KiB
Diff
diff -up openssh-6.7p1/configure.ac.tcp_wrappers openssh-6.7p1/configure.ac
|
|
--- openssh-6.7p1/configure.ac.tcp_wrappers 2015-01-20 16:58:39.829111746 +0100
|
|
+++ openssh-6.7p1/configure.ac 2015-01-20 16:58:39.870111159 +0100
|
|
@@ -1404,6 +1404,62 @@ AC_ARG_WITH([skey],
|
|
]
|
|
)
|
|
|
|
+# Check whether user wants TCP wrappers support
|
|
+TCPW_MSG="no"
|
|
+AC_ARG_WITH([tcp-wrappers],
|
|
+ [ --with-tcp-wrappers[[=PATH]] Enable tcpwrappers support (optionally in PATH)],
|
|
+ [
|
|
+ if test "x$withval" != "xno" ; then
|
|
+ saved_LIBS="$LIBS"
|
|
+ saved_LDFLAGS="$LDFLAGS"
|
|
+ saved_CPPFLAGS="$CPPFLAGS"
|
|
+ if test -n "${withval}" && \
|
|
+ test "x${withval}" != "xyes"; then
|
|
+ if test -d "${withval}/lib"; then
|
|
+ if test -n "${need_dash_r}"; then
|
|
+ LDFLAGS="-L${withval}/lib -R${withval}/lib ${LDFLAGS}"
|
|
+ else
|
|
+ LDFLAGS="-L${withval}/lib ${LDFLAGS}"
|
|
+ fi
|
|
+ else
|
|
+ if test -n "${need_dash_r}"; then
|
|
+ LDFLAGS="-L${withval} -R${withval} ${LDFLAGS}"
|
|
+ else
|
|
+ LDFLAGS="-L${withval} ${LDFLAGS}"
|
|
+ fi
|
|
+ fi
|
|
+ if test -d "${withval}/include"; then
|
|
+ CPPFLAGS="-I${withval}/include ${CPPFLAGS}"
|
|
+ else
|
|
+ CPPFLAGS="-I${withval} ${CPPFLAGS}"
|
|
+ fi
|
|
+ fi
|
|
+ LIBS="-lwrap $LIBS"
|
|
+ AC_MSG_CHECKING([for libwrap])
|
|
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
|
|
+#include <sys/types.h>
|
|
+#include <sys/socket.h>
|
|
+#include <netinet/in.h>
|
|
+#include <tcpd.h>
|
|
+int deny_severity = 0, allow_severity = 0;
|
|
+ ]], [[
|
|
+ hosts_access(0);
|
|
+ ]])], [
|
|
+ AC_MSG_RESULT([yes])
|
|
+ AC_DEFINE([LIBWRAP], [1],
|
|
+ [Define if you want
|
|
+ TCP Wrappers support])
|
|
+ SSHDLIBS="$SSHDLIBS -lwrap"
|
|
+ TCPW_MSG="yes"
|
|
+ ], [
|
|
+ AC_MSG_ERROR([*** libwrap missing])
|
|
+
|
|
+ ])
|
|
+ LIBS="$saved_LIBS"
|
|
+ fi
|
|
+ ]
|
|
+)
|
|
+
|
|
# Check whether user wants to use ldns
|
|
LDNS_MSG="no"
|
|
AC_ARG_WITH(ldns,
|
|
@@ -4959,6 +5015,7 @@ echo " KerberosV support
|
|
echo " SELinux support: $SELINUX_MSG"
|
|
echo " Smartcard support: $SCARD_MSG"
|
|
echo " S/KEY support: $SKEY_MSG"
|
|
+echo " TCP Wrappers support: $TCPW_MSG"
|
|
echo " MD5 password support: $MD5_MSG"
|
|
echo " libedit support: $LIBEDIT_MSG"
|
|
echo " Solaris process contract support: $SPC_MSG"
|
|
diff -up openssh-6.7p1/sshd.8.tcp_wrappers openssh-6.7p1/sshd.8
|
|
--- openssh-6.7p1/sshd.8.tcp_wrappers 2015-01-20 16:58:39.838111617 +0100
|
|
+++ openssh-6.7p1/sshd.8 2015-01-20 16:58:39.871111145 +0100
|
|
@@ -858,6 +858,12 @@ the user's home directory becomes access
|
|
This file should be writable only by the user, and need not be
|
|
readable by anyone else.
|
|
.Pp
|
|
+.It Pa /etc/hosts.allow
|
|
+.It Pa /etc/hosts.deny
|
|
+Access controls that should be enforced by tcp-wrappers are defined here.
|
|
+Further details are described in
|
|
+.Xr hosts_access 5 .
|
|
+.Pp
|
|
.It Pa /etc/hosts.equiv
|
|
This file is for host-based authentication (see
|
|
.Xr ssh 1 ) .
|
|
@@ -981,6 +987,7 @@ IPv6 address can be used everywhere wher
|
|
.Xr ssh-keygen 1 ,
|
|
.Xr ssh-keyscan 1 ,
|
|
.Xr chroot 2 ,
|
|
+.Xr hosts_access 5 ,
|
|
.Xr login.conf 5 ,
|
|
.Xr moduli 5 ,
|
|
.Xr sshd_config 5 ,
|
|
diff -up openssh-6.7p1/sshd.c.tcp_wrappers openssh-6.7p1/sshd.c
|
|
--- openssh-6.7p1/sshd.c.tcp_wrappers 2015-01-20 16:58:39.863111259 +0100
|
|
+++ openssh-6.7p1/sshd.c 2015-01-20 16:59:12.992636776 +0100
|
|
@@ -123,6 +123,13 @@
|
|
#include "ssh-sandbox.h"
|
|
#include "version.h"
|
|
|
|
+#ifdef LIBWRAP
|
|
+#include <tcpd.h>
|
|
+#include <syslog.h>
|
|
+int allow_severity;
|
|
+int deny_severity;
|
|
+#endif /* LIBWRAP */
|
|
+
|
|
#ifndef O_NOCTTY
|
|
#define O_NOCTTY 0
|
|
#endif
|
|
@@ -2078,6 +2085,24 @@ main(int ac, char **av)
|
|
#ifdef SSH_AUDIT_EVENTS
|
|
audit_connection_from(remote_ip, remote_port);
|
|
#endif
|
|
+#ifdef LIBWRAP
|
|
+ allow_severity = options.log_facility|LOG_INFO;
|
|
+ deny_severity = options.log_facility|LOG_WARNING;
|
|
+ /* Check whether logins are denied from this host. */
|
|
+ if (packet_connection_is_on_socket()) {
|
|
+ struct request_info req;
|
|
+
|
|
+ request_init(&req, RQ_DAEMON, __progname, RQ_FILE, sock_in, 0);
|
|
+ fromhost(&req);
|
|
+
|
|
+ if (!hosts_access(&req)) {
|
|
+ debug("Connection refused by tcp wrapper");
|
|
+ refuse(&req);
|
|
+ /* NOTREACHED */
|
|
+ fatal("libwrap refuse returns");
|
|
+ }
|
|
+ }
|
|
+#endif /* LIBWRAP */
|
|
|
|
/* Log the connection. */
|
|
verbose("Connection from %s port %d on %s port %d",
|