X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/00146caabf3f7e02f3349607dddef7b6384da468..HEAD:/auth-options.c

diff --git a/auth-options.c b/auth-options.c
index 33c62641..ab085c23 100644
--- a/auth-options.c
+++ b/auth-options.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth-options.c,v 1.39 2006/07/22 20:48:22 stevesk Exp $ */
+/* $OpenBSD: auth-options.c,v 1.44 2009/01/22 10:09:16 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -14,28 +14,36 @@
 
 #include <sys/types.h>
 
-#if defined(HAVE_NETDB_H)
-# include <netdb.h>
-#endif
+#include <netdb.h>
 #include <pwd.h>
 #include <string.h>
+#include <stdio.h>
+#include <stdarg.h>
 
+#include "openbsd-compat/sys-queue.h"
 #include "xmalloc.h"
 #include "match.h"
 #include "log.h"
 #include "canohost.h"
+#include "buffer.h"
 #include "channels.h"
 #include "auth-options.h"
 #include "servconf.h"
 #include "misc.h"
-#include "monitor_wrap.h"
+#include "key.h"
+#include "hostfile.h"
 #include "auth.h"
+#ifdef GSSAPI
+#include "ssh-gss.h"
+#endif
+#include "monitor_wrap.h"
 
 /* Flags set authorized_keys flags */
 int no_port_forwarding_flag = 0;
 int no_agent_forwarding_flag = 0;
 int no_x11_forwarding_flag = 0;
 int no_pty_flag = 0;
+int no_user_rc = 0;
 
 /* "command=" option. */
 char *forced_command = NULL;
@@ -55,6 +63,7 @@ auth_clear_options(void)
 	no_port_forwarding_flag = 0;
 	no_pty_flag = 0;
 	no_x11_forwarding_flag = 0;
+	no_user_rc = 0;
 	while (custom_environment) {
 		struct envstring *ce = custom_environment;
 		custom_environment = ce->next;
@@ -115,6 +124,13 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
 			opts += strlen(cp);
 			goto next_option;
 		}
+		cp = "no-user-rc";
+		if (strncasecmp(opts, cp, strlen(cp)) == 0) {
+			auth_debug_add("User rc file execution disabled.");
+			no_user_rc = 1;
+			opts += strlen(cp);
+			goto next_option;
+		}
 		cp = "command=\"";
 		if (strncasecmp(opts, cp, strlen(cp)) == 0) {
 			opts += strlen(cp);
@@ -210,8 +226,19 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
 			}
 			patterns[i] = '\0';
 			opts++;
-			if (match_host_and_ip(remote_host, remote_ip,
-			    patterns) != 1) {
+			switch (match_host_and_ip(remote_host, remote_ip,
+			    patterns)) {
+			case 1:
+				xfree(patterns);
+				/* Host name matches. */
+				goto next_option;
+			case -1:
+				debug("%.100s, line %lu: invalid criteria",
+				    file, linenum);
+				auth_debug_add("%.100s, line %lu: "
+				    "invalid criteria", file, linenum);
+				/* FALLTHROUGH */
+			case 0:
 				xfree(patterns);
 				logit("Authentication tried for %.100s with "
 				    "correct key but not from a permitted "
@@ -220,17 +247,15 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
 				auth_debug_add("Your host '%.200s' is not "
 				    "permitted to use this key for login.",
 				    remote_host);
-				/* deny access */
-				return 0;
+				break;
 			}
-			xfree(patterns);
-			/* Host name matches. */
-			goto next_option;
+			/* deny access */
+			return 0;
 		}
 		cp = "permitopen=\"";
 		if (strncasecmp(opts, cp, strlen(cp)) == 0) {
 			char *host, *p;
-			u_short port;
+			int port;
 			char *patterns = xmalloc(strlen(opts) + 1);
 
 			opts += strlen(cp);
@@ -268,7 +293,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
 				goto bad_option;
 			}
 			host = cleanhostname(host);
-			if (p == NULL || (port = a2port(p)) == 0) {
+			if (p == NULL || (port = a2port(p)) <= 0) {
 				debug("%.100s, line %lu: Bad permitopen port "
 				    "<%.100s>", file, linenum, p ? p : "");
 				auth_debug_add("%.100s, line %lu: "