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authorColin Watson <cjwatson@debian.org>2007-06-12 16:16:35 +0000
committerColin Watson <cjwatson@debian.org>2007-06-12 16:16:35 +0000
commitb7e40fa9da0b5491534a429dadb321eab5a77558 (patch)
treebed1da11e9f829925797aa093e379fc0b5868ecd /auth1.c
parent4f84beedf1005e44ff33c854abd6b711ffc0adb7 (diff)
parent086ea76990b1e6287c24b6db74adffd4605eb3b0 (diff)
* New upstream release (closes: #395507, #397961, #420035). Important
changes not previously backported to 4.3p2: - 4.4/4.4p1 (http://www.openssh.org/txt/release-4.4): + On portable OpenSSH, fix a GSSAPI authentication abort that could be used to determine the validity of usernames on some platforms. + Implemented conditional configuration in sshd_config(5) using the "Match" directive. This allows some configuration options to be selectively overridden if specific criteria (based on user, group, hostname and/or address) are met. So far a useful subset of post-authentication options are supported and more are expected to be added in future releases. + Add support for Diffie-Hellman group exchange key agreement with a final hash of SHA256. + Added a "ForceCommand" directive to sshd_config(5). Similar to the command="..." option accepted in ~/.ssh/authorized_keys, this forces the execution of the specified command regardless of what the user requested. This is very useful in conjunction with the new "Match" option. + Add a "PermitOpen" directive to sshd_config(5). This mirrors the permitopen="..." authorized_keys option, allowing fine-grained control over the port-forwardings that a user is allowed to establish. + Add optional logging of transactions to sftp-server(8). + ssh(1) will now record port numbers for hosts stored in ~/.ssh/known_hosts when a non-standard port has been requested (closes: #50612). + Add an "ExitOnForwardFailure" option to cause ssh(1) to exit (with a non-zero exit code) when requested port forwardings could not be established. + Extend sshd_config(5) "SubSystem" declarations to allow the specification of command-line arguments. + Replacement of all integer overflow susceptible invocations of malloc(3) and realloc(3) with overflow-checking equivalents. + Many manpage fixes and improvements. + Add optional support for OpenSSL hardware accelerators (engines), enabled using the --with-ssl-engine configure option. + Tokens in configuration files may be double-quoted in order to contain spaces (closes: #319639). + Move a debug() call out of a SIGCHLD handler, fixing a hang when the session exits very quickly (closes: #307890). + Fix some incorrect buffer allocation calculations (closes: #410599). + ssh-add doesn't ask for a passphrase if key file permissions are too liberal (closes: #103677). + Likewise, ssh doesn't ask either (closes: #99675). - 4.6/4.6p1 (http://www.openssh.org/txt/release-4.6): + sshd now allows the enabling and disabling of authentication methods on a per user, group, host and network basis via the Match directive in sshd_config. + Fixed an inconsistent check for a terminal when displaying scp progress meter (closes: #257524). + Fix "hang on exit" when background processes are running at the time of exit on a ttyful/login session (closes: #88337). * Update to current GSSAPI patch from http://www.sxw.org.uk/computing/patches/openssh-4.6p1-gsskex-20070312.patch; install ChangeLog.gssapi.
Diffstat (limited to 'auth1.c')
-rw-r--r--auth1.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/auth1.c b/auth1.c
index f89c3cf4f..ac8f6414b 100644
--- a/auth1.c
+++ b/auth1.c
@@ -1,3 +1,4 @@
1/* $OpenBSD: auth1.c,v 1.70 2006/08/03 03:34:41 deraadt Exp $ */
1/* 2/*
2 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
3 * All rights reserved 4 * All rights reserved
@@ -10,7 +11,14 @@
10 */ 11 */
11 12
12#include "includes.h" 13#include "includes.h"
13RCSID("$OpenBSD: auth1.c,v 1.62 2005/07/16 01:35:24 djm Exp $"); 14
15#include <sys/types.h>
16
17#include <stdarg.h>
18#include <stdio.h>
19#include <string.h>
20#include <unistd.h>
21#include <pwd.h>
14 22
15#include "xmalloc.h" 23#include "xmalloc.h"
16#include "rsa.h" 24#include "rsa.h"
@@ -20,10 +28,15 @@ RCSID("$OpenBSD: auth1.c,v 1.62 2005/07/16 01:35:24 djm Exp $");
20#include "log.h" 28#include "log.h"
21#include "servconf.h" 29#include "servconf.h"
22#include "compat.h" 30#include "compat.h"
31#include "key.h"
32#include "hostfile.h"
23#include "auth.h" 33#include "auth.h"
24#include "channels.h" 34#include "channels.h"
25#include "session.h" 35#include "session.h"
26#include "uidswap.h" 36#include "uidswap.h"
37#ifdef GSSAPI
38#include "ssh-gss.h"
39#endif
27#include "monitor_wrap.h" 40#include "monitor_wrap.h"
28#include "buffer.h" 41#include "buffer.h"
29 42
@@ -77,7 +90,7 @@ static const struct AuthMethod1
77{ 90{
78 int i; 91 int i;
79 92
80 for(i = 0; auth1_methods[i].name != NULL; i++) 93 for (i = 0; auth1_methods[i].name != NULL; i++)
81 if (auth1_methods[i].type == type) 94 if (auth1_methods[i].type == type)
82 return (&(auth1_methods[i])); 95 return (&(auth1_methods[i]));
83 96
@@ -96,6 +109,7 @@ get_authname(int type)
96 return (buf); 109 return (buf);
97} 110}
98 111
112/*ARGSUSED*/
99static int 113static int
100auth1_process_password(Authctxt *authctxt, char *info, size_t infolen) 114auth1_process_password(Authctxt *authctxt, char *info, size_t infolen)
101{ 115{
@@ -120,6 +134,7 @@ auth1_process_password(Authctxt *authctxt, char *info, size_t infolen)
120 return (authenticated); 134 return (authenticated);
121} 135}
122 136
137/*ARGSUSED*/
123static int 138static int
124auth1_process_rsa(Authctxt *authctxt, char *info, size_t infolen) 139auth1_process_rsa(Authctxt *authctxt, char *info, size_t infolen)
125{ 140{
@@ -137,6 +152,7 @@ auth1_process_rsa(Authctxt *authctxt, char *info, size_t infolen)
137 return (authenticated); 152 return (authenticated);
138} 153}
139 154
155/*ARGSUSED*/
140static int 156static int
141auth1_process_rhosts_rsa(Authctxt *authctxt, char *info, size_t infolen) 157auth1_process_rhosts_rsa(Authctxt *authctxt, char *info, size_t infolen)
142{ 158{
@@ -175,6 +191,7 @@ auth1_process_rhosts_rsa(Authctxt *authctxt, char *info, size_t infolen)
175 return (authenticated); 191 return (authenticated);
176} 192}
177 193
194/*ARGSUSED*/
178static int 195static int
179auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen) 196auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen)
180{ 197{
@@ -193,6 +210,7 @@ auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen)
193 return (-1); 210 return (-1);
194} 211}
195 212
213/*ARGSUSED*/
196static int 214static int
197auth1_process_tis_response(Authctxt *authctxt, char *info, size_t infolen) 215auth1_process_tis_response(Authctxt *authctxt, char *info, size_t infolen)
198{ 216{