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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 /mac.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 'mac.c')
-rw-r--r--mac.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/mac.c b/mac.c
index 2bda5a1b9..e5d5bfa88 100644
--- a/mac.c
+++ b/mac.c
@@ -1,3 +1,4 @@
1/* $OpenBSD: mac.c,v 1.12 2006/08/03 03:34:42 deraadt Exp $ */
1/* 2/*
2 * Copyright (c) 2001 Markus Friedl. All rights reserved. 3 * Copyright (c) 2001 Markus Friedl. All rights reserved.
3 * 4 *
@@ -23,16 +24,23 @@
23 */ 24 */
24 25
25#include "includes.h" 26#include "includes.h"
26RCSID("$OpenBSD: mac.c,v 1.7 2005/06/17 02:44:32 djm Exp $"); 27
28#include <sys/types.h>
27 29
28#include <openssl/hmac.h> 30#include <openssl/hmac.h>
29 31
32#include <stdarg.h>
33#include <string.h>
34#include <signal.h>
35
30#include "xmalloc.h" 36#include "xmalloc.h"
31#include "getput.h"
32#include "log.h" 37#include "log.h"
33#include "cipher.h" 38#include "cipher.h"
39#include "buffer.h"
40#include "key.h"
34#include "kex.h" 41#include "kex.h"
35#include "mac.h" 42#include "mac.h"
43#include "misc.h"
36 44
37struct { 45struct {
38 char *name; 46 char *name;
@@ -83,7 +91,7 @@ mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen)
83 if (mac->mac_len > sizeof(m)) 91 if (mac->mac_len > sizeof(m))
84 fatal("mac_compute: mac too long"); 92 fatal("mac_compute: mac too long");
85 HMAC_Init(&c, mac->key, mac->key_len, mac->md); 93 HMAC_Init(&c, mac->key, mac->key_len, mac->md);
86 PUT_32BIT(b, seqno); 94 put_u32(b, seqno);
87 HMAC_Update(&c, b, sizeof(b)); 95 HMAC_Update(&c, b, sizeof(b));
88 HMAC_Update(&c, data, datalen); 96 HMAC_Update(&c, data, datalen);
89 HMAC_Final(&c, m, NULL); 97 HMAC_Final(&c, m, NULL);