8 files changed, 43 insertions, 10 deletions

diff --git a/ChangeLog b/ChangeLog
index 4ad86f200..f9ea2e959 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -20,6 +20,9 @@
    - djm@cvs.openbsd.org 2004/03/03 09:31:20
      [sftp.c]
      Fix initialisation of progress meter; ok markus@
+   - markus@cvs.openbsd.org 2004/03/05 10:53:58
+     [readconf.c readconf.h scp.1 sftp.1 ssh.1 ssh_config.5 sshconnect2.c]
+     add IdentitiesOnly; ok djm@, pb@
 
 20040307
  - (tim) [regress/login-timeout.sh] fix building outside of source tree.
@@ -880,4 +883,4 @@
    - (djm) Trim deprecated options from INSTALL. Mention UsePAM
    - (djm) Fix quote handling in sftp; Patch from admorten AT umich.edu
 
-$Id: ChangeLog,v 1.3282 2004/03/08 12:12:19 djm Exp $
+$Id: ChangeLog,v 1.3283 2004/03/08 12:12:36 djm Exp $
diff --git a/readconf.c b/readconf.c
index 2591e0dba..ce0d1f753 100644
--- a/readconf.c
+++ b/readconf.c
@@ -12,7 +12,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: readconf.c,v 1.127 2003/12/16 15:49:51 markus Exp $");
+RCSID("$OpenBSD: readconf.c,v 1.128 2004/03/05 10:53:58 markus Exp $");
 
 #include "ssh.h"
 #include "xmalloc.h"
@@ -105,7 +105,7 @@ typedef enum {
         oClearAllForwardings, oNoHostAuthenticationForLocalhost,
         oEnableSSHKeysign, oRekeyLimit, oVerifyHostKeyDNS, oConnectTimeout,
         oAddressFamily, oGssAuthentication, oGssDelegateCreds,
-        oServerAliveInterval, oServerAliveCountMax,
+        oServerAliveInterval, oServerAliveCountMax, oIdentitiesOnly,
         oDeprecated, oUnsupported
 } OpCodes;
 
@@ -147,6 +147,7 @@ static struct {
         { "usersh", oDeprecated },
         { "identityfile", oIdentityFile },
         { "identityfile2", oIdentityFile },                     /* alias */
+        { "identitiesonly", oIdentitiesOnly },
         { "hostname", oHostName },
         { "hostkeyalias", oHostKeyAlias },
         { "proxycommand", oProxyCommand },
@@ -736,6 +737,10 @@ parse_int:
                 intptr = &options->enable_ssh_keysign;
                 goto parse_flag;
 
+        case oIdentitiesOnly:
+                intptr = &options->identities_only;
+                goto parse_flag;
+
         case oServerAliveInterval:
                 intptr = &options->server_alive_interval;
                 goto parse_time;
@@ -869,6 +874,7 @@ initialize_options(Options * options)
         options->smartcard_device = NULL;
         options->enable_ssh_keysign = - 1;
         options->no_host_authentication_for_localhost = - 1;
+        options->identities_only = - 1;
         options->rekey_limit = - 1;
         options->verify_host_key_dns = -1;
         options->server_alive_interval = -1;
@@ -981,6 +987,8 @@ fill_default_options(Options * options)
                 clear_forwardings(options);
         if (options->no_host_authentication_for_localhost == - 1)
                 options->no_host_authentication_for_localhost = 0;
+        if (options->identities_only == -1)
+                options->identities_only = 0;
         if (options->enable_ssh_keysign == -1)
                 options->enable_ssh_keysign = 0;
         if (options->rekey_limit == -1)
diff --git a/readconf.h b/readconf.h
index 3f27af961..93d833cee 100644
--- a/readconf.h
+++ b/readconf.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: readconf.h,v 1.59 2003/12/16 15:49:51 markus Exp $    */
+/*      $OpenBSD: readconf.h,v 1.60 2004/03/05 10:53:58 markus Exp $    */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -100,6 +100,7 @@ typedef struct {
         int     enable_ssh_keysign;
         int     rekey_limit;
         int     no_host_authentication_for_localhost;
+        int     identities_only;
         int     server_alive_interval; 
         int     server_alive_count_max;
 }       Options;
diff --git a/scp.1 b/scp.1
index f5ca1e45a..5a3221127 100644
--- a/scp.1
+++ b/scp.1
@@ -9,7 +9,7 @@
 .\"
 .\" Created: Sun May  7 00:14:37 1995 ylo
 .\"
-.\" $OpenBSD: scp.1,v 1.32 2003/12/16 15:49:51 markus Exp $
+.\" $OpenBSD: scp.1,v 1.33 2004/03/05 10:53:58 markus Exp $
 .\"
 .Dd September 25, 1999
 .Dt SCP 1
@@ -137,6 +137,7 @@ For full details of the options listed below, and their possible values, see
 .It HostKeyAlias
 .It HostName
 .It IdentityFile
+.It IdentitiesOnly
 .It LogLevel
 .It MACs
 .It NoHostAuthenticationForLocalhost
diff --git a/sftp.1 b/sftp.1
index 2a67a888e..b2cab0cda 100644
--- a/sftp.1
+++ b/sftp.1
@@ -1,4 +1,4 @@
-.\" $OpenBSD: sftp.1,v 1.51 2004/01/13 12:17:33 jmc Exp $
+.\" $OpenBSD: sftp.1,v 1.52 2004/03/05 10:53:58 markus Exp $
 .\"
 .\" Copyright (c) 2001 Damien Miller.  All rights reserved.
 .\"
@@ -163,6 +163,7 @@ For full details of the options listed below, and their possible values, see
 .It HostKeyAlias
 .It HostName
 .It IdentityFile
+.It IdentitiesOnly
 .It LogLevel
 .It MACs
 .It NoHostAuthenticationForLocalhost
diff --git a/ssh.1 b/ssh.1
index e2cd5d343..31eb66c97 100644
--- a/ssh.1
+++ b/ssh.1
@@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh.1,v 1.181 2003/12/16 15:49:51 markus Exp $
+.\" $OpenBSD: ssh.1,v 1.182 2004/03/05 10:53:58 markus Exp $
 .Dd September 25, 1999
 .Dt SSH 1
 .Os
@@ -634,6 +634,7 @@ For full details of the options listed below, and their possible values, see
 .It HostKeyAlias
 .It HostName
 .It IdentityFile
+.It IdentitiesOnly
 .It LocalForward
 .It LogLevel
 .It MACs
diff --git a/ssh_config.5 b/ssh_config.5
index 210da059b..05581ece4 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh_config.5,v 1.28 2003/12/16 15:49:51 markus Exp $
+.\" $OpenBSD: ssh_config.5,v 1.29 2004/03/05 10:53:58 markus Exp $
 .Dd September 25, 1999
 .Dt SSH_CONFIG 5
 .Os
@@ -406,6 +406,24 @@ syntax to refer to a user's home directory.
 It is possible to have
 multiple identity files specified in configuration files; all these
 identities will be tried in sequence.
+.It Cm IdentitiesOnly
+Specifies that
+.Nm ssh
+should only use the authentication identity files configured in the
+.Nm 
+files,
+even if the
+.Nm ssh-agent
+offers more identities.
+The argument to this keyword must be
+.Dq yes
+or
+.Dq no .
+This option is intented for situations where
+.Nm ssh-agent
+offers many different identities.
+The default is
+.Dq no .
 .It Cm LocalForward
 Specifies that a TCP/IP port on the local machine be forwarded over
 the secure channel to the specified host and port from the remote machine.
diff --git a/sshconnect2.c b/sshconnect2.c
index 3a218113c..c261dfd18 100644
--- a/sshconnect2.c
+++ b/sshconnect2.c
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: sshconnect2.c,v 1.134 2004/01/19 21:25:15 markus Exp $");
+RCSID("$OpenBSD: sshconnect2.c,v 1.135 2004/03/05 10:53:58 markus Exp $");
 
 #include "openbsd-compat/sys-queue.h"
 
@@ -1044,7 +1044,7 @@ pubkey_prepare(Authctxt *authctxt)
                                         break;
                                 }
                         }
-                        if (!found) {
+                        if (!found && !options.identities_only) {
                                 id = xmalloc(sizeof(*id));
                                 memset(id, 0, sizeof(*id));
                                 id->key = key;