import openssh-5.2p1-gsskex-all-20090726.patch

1 files changed, 36 insertions, 19 deletions

diff --git a/clientloop.c b/clientloop.c
index f10fab769..52667017c 100644
--- a/clientloop.c
+++ b/clientloop.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: clientloop.c,v 1.201 2008/07/16 11:51:14 djm Exp $ */
+/* $OpenBSD: clientloop.c,v 1.209 2009/02/12 03:00:56 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -107,10 +107,13 @@
 #include "atomicio.h"
 #include "sshpty.h"
 #include "misc.h"
-#include "monitor_fdpass.h"
 #include "match.h"
 #include "msg.h"
 
+#ifdef GSSAPI
+#include "ssh-gss.h"
+#endif
+
 /* import options */
 extern Options options;
 
@@ -765,8 +768,8 @@ process_cmdline(void)
         void (*handler)(int);
         char *s, *cmd, *cancel_host;
         int delete = 0;
-        int local = 0;
-        u_short cancel_port;
+        int local = 0, remote = 0, dynamic = 0;
+        int cancel_port;
         Forward fwd;
 
         bzero(&fwd, sizeof(fwd));
@@ -790,6 +793,8 @@ process_cmdline(void)
                     "Request local forward");
                 logit("      -R[bind_address:]port:host:hostport    "
                     "Request remote forward");
+                logit("      -D[bind_address:]port                  "
+                    "Request dynamic forward");
                 logit("      -KR[bind_address:]port                 "
                     "Cancel remote forward");
                 if (!options.permit_local_command)
@@ -809,17 +814,22 @@ process_cmdline(void)
                 delete = 1;
                 s++;
         }
-        if (*s != 'L' && *s != 'R') {
+        if (*s == 'L')
+                local = 1;
+        else if (*s == 'R')
+                remote = 1;
+        else if (*s == 'D')
+                dynamic = 1;
+        else {
                 logit("Invalid command.");
                 goto out;
         }
-        if (*s == 'L')
-                local = 1;
-        if (local && delete) {
+
+        if ((local || dynamic) && delete) {
                 logit("Not supported.");
                 goto out;
         }
-        if ((!local || delete) && !compat20) {
+        if (remote && delete && !compat20) {
                 logit("Not supported for SSH protocol version 1.");
                 goto out;
         }
@@ -837,17 +847,17 @@ process_cmdline(void)
                         cancel_port = a2port(cancel_host);
                         cancel_host = NULL;
                 }
-                if (cancel_port == 0) {
+                if (cancel_port <= 0) {
                         logit("Bad forwarding close port");
                         goto out;
                 }
                 channel_request_rforward_cancel(cancel_host, cancel_port);
         } else {
-                if (!parse_forward(&fwd, s)) {
+                if (!parse_forward(&fwd, s, dynamic, remote)) {
                         logit("Bad forwarding specification.");
                         goto out;
                 }
-                if (local) {
+                if (local || dynamic) {
                         if (channel_setup_local_fwd_listener(fwd.listen_host,
                             fwd.listen_port, fwd.connect_host,
                             fwd.connect_port, options.gateway_ports) < 0) {
@@ -1036,7 +1046,6 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr,
 Supported escape sequences:\r\n\
   %c.  - terminate session\r\n\
   %cB  - send a BREAK to the remote system\r\n\
-  %cC  - open a command line\r\n\
   %cR  - Request rekey (SSH protocol 2 only)\r\n\
   %c#  - list forwarded connections\r\n\
   %c?  - this message\r\n\
@@ -1045,8 +1054,7 @@ Supported escape sequences:\r\n\
                                             escape_char, escape_char,
                                             escape_char, escape_char,
                                             escape_char, escape_char,
-                                            escape_char, escape_char,
-                                            escape_char);
+                                            escape_char, escape_char);
                                 } else {
                                         snprintf(string, sizeof string,
 "%c?\r\n\
@@ -1081,6 +1089,8 @@ Supported escape sequences:\r\n\
                                 continue;
 
                         case 'C':
+                                if (c && c->ctl_fd != -1)
+                                        goto noescape;
                                 process_cmdline();
                                 continue;
 
@@ -1423,6 +1433,13 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
                 /* Do channel operations unless rekeying in progress. */
                 if (!rekeying) {
                         channel_after_select(readset, writeset);
+
+                        if (options.gss_renewal_rekey &&
+                            ssh_gssapi_credentials_updated(GSS_C_NO_CONTEXT)) {
+                                debug("credentials updated - forcing rekey");
+                                need_rekeying = 1;
+                        }
+
                         if (need_rekeying || packet_need_rekeying()) {
                                 debug("need rekeying");
                                 xxx_kex->done = 0;
@@ -1632,7 +1649,7 @@ client_request_forwarded_tcpip(const char *request_type, int rchan)
 {
         Channel *c = NULL;
         char *listen_address, *originator_address;
-        int listen_port, originator_port;
+        u_short listen_port, originator_port;
 
         /* Get rest of the packet */
         listen_address = packet_get_string(NULL);
@@ -1658,7 +1675,7 @@ client_request_x11(const char *request_type, int rchan)
 {
         Channel *c = NULL;
         char *originator;
-        int originator_port;
+        u_short originator_port;
         int sock;
 
         if (!options.forward_x11) {
@@ -1722,7 +1739,7 @@ client_request_tun_fwd(int tun_mode, int local_tun, int remote_tun)
                 return 0;
 
         if (!compat20) {
-                error("Tunnel forwarding is not support for protocol 1");
+                error("Tunnel forwarding is not supported for protocol 1");
                 return -1;
         }
 
@@ -1846,7 +1863,7 @@ client_input_channel_req(int type, u_int32_t seq, void *ctxt)
         if (reply) {
                 packet_start(success ?
                     SSH2_MSG_CHANNEL_SUCCESS : SSH2_MSG_CHANNEL_FAILURE);
-                packet_put_int(id);
+                packet_put_int(c->remote_id);
                 packet_send();
         }
         xfree(rtype);