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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 /auth2.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 'auth2.c')
-rw-r--r--auth2.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/auth2.c b/auth2.c
index a67449db5..6a1653064 100644
--- a/auth2.c
+++ b/auth2.c
@@ -1,3 +1,4 @@
1/* $OpenBSD: auth2.c,v 1.114 2007/03/01 10:28:02 dtucker Exp $ */
1/* 2/*
2 * Copyright (c) 2000 Markus Friedl. All rights reserved. 3 * Copyright (c) 2000 Markus Friedl. All rights reserved.
3 * 4 *
@@ -23,23 +24,31 @@
23 */ 24 */
24 25
25#include "includes.h" 26#include "includes.h"
26RCSID("$OpenBSD: auth2.c,v 1.107 2004/07/28 09:40:29 markus Exp $");
27 27
28#include "ssh2.h" 28#include <sys/types.h>
29
30#include <pwd.h>
31#include <stdarg.h>
32#include <string.h>
33
29#include "xmalloc.h" 34#include "xmalloc.h"
35#include "ssh2.h"
30#include "packet.h" 36#include "packet.h"
31#include "log.h" 37#include "log.h"
38#include "buffer.h"
32#include "servconf.h" 39#include "servconf.h"
33#include "compat.h" 40#include "compat.h"
41#include "key.h"
42#include "hostfile.h"
34#include "auth.h" 43#include "auth.h"
35#include "dispatch.h" 44#include "dispatch.h"
36#include "pathnames.h" 45#include "pathnames.h"
37#include "monitor_wrap.h"
38#include "buffer.h" 46#include "buffer.h"
39 47
40#ifdef GSSAPI 48#ifdef GSSAPI
41#include "ssh-gss.h" 49#include "ssh-gss.h"
42#endif 50#endif
51#include "monitor_wrap.h"
43 52
44/* import */ 53/* import */
45extern ServerOptions options; 54extern ServerOptions options;
@@ -89,15 +98,12 @@ int user_key_allowed(struct passwd *, Key *);
89void 98void
90do_authentication2(Authctxt *authctxt) 99do_authentication2(Authctxt *authctxt)
91{ 100{
92 /* challenge-response is implemented via keyboard interactive */
93 if (options.challenge_response_authentication)
94 options.kbd_interactive_authentication = 1;
95
96 dispatch_init(&dispatch_protocol_error); 101 dispatch_init(&dispatch_protocol_error);
97 dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request); 102 dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request);
98 dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt); 103 dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt);
99} 104}
100 105
106/*ARGSUSED*/
101static void 107static void
102input_service_request(int type, u_int32_t seq, void *ctxt) 108input_service_request(int type, u_int32_t seq, void *ctxt)
103{ 109{
@@ -131,6 +137,7 @@ input_service_request(int type, u_int32_t seq, void *ctxt)
131 xfree(service); 137 xfree(service);
132} 138}
133 139
140/*ARGSUSED*/
134static void 141static void
135input_userauth_request(int type, u_int32_t seq, void *ctxt) 142input_userauth_request(int type, u_int32_t seq, void *ctxt)
136{ 143{