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authorBen Lindstrom <mouring@eviladmin.org>2002-06-21 00:04:48 +0000
committerBen Lindstrom <mouring@eviladmin.org>2002-06-21 00:04:48 +0000
commit4eb4c4e1ef39906056e282d6e160350dcd3fa533 (patch)
tree9a31a7dc0115b01bc26d57fb488fb9cadf6b499d
parentf0bfa839bda8309c45b807e55bb2b2dfac7a6f9a (diff)
- markus@cvs.openbsd.org 2002/06/15 00:01:36
[authfd.c authfd.h ssh-add.c ssh-agent.c] break agent key lifetime protocol and allow other contraints for key usage.
-rw-r--r--ChangeLog6
-rw-r--r--authfd.c13
-rw-r--r--authfd.h12
-rw-r--r--ssh-add.c4
-rw-r--r--ssh-agent.c27
5 files changed, 38 insertions, 24 deletions
diff --git a/ChangeLog b/ChangeLog
index 20ba05d8..d2dca1b9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,10 @@
- todd@cvs.openbsd.org 2002/06/14 21:35:00
[monitor_wrap.c]
spelling; from Brian Poole <raj@cerias.purdue.edu>
+ - markus@cvs.openbsd.org 2002/06/15 00:01:36
+ [authfd.c authfd.h ssh-add.c ssh-agent.c]
+ break agent key lifetime protocol and allow other contraints for key
+ usage.
20020613
- (bal) typo of setgroup for cygwin. Patch by vinschen@redhat.com
@@ -933,4 +937,4 @@
- (stevesk) entropy.c: typo in debug message
- (djm) ssh-keygen -i needs seeded RNG; report from markus@
-$Id: ChangeLog,v 1.2218 2002/06/21 00:01:18 mouring Exp $
+$Id: ChangeLog,v 1.2219 2002/06/21 00:04:48 mouring Exp $
diff --git a/authfd.c b/authfd.c
index 0f84e321..b16bc470 100644
--- a/authfd.c
+++ b/authfd.c
@@ -35,7 +35,7 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: authfd.c,v 1.51 2002/06/05 21:55:44 markus Exp $");
+RCSID("$OpenBSD: authfd.c,v 1.52 2002/06/15 00:01:36 markus Exp $");
#include <openssl/evp.h>
@@ -552,7 +552,7 @@ ssh_remove_identity(AuthenticationConnection *auth, Key *key)
}
int
-ssh_lifetime_identity(AuthenticationConnection *auth, Key *key, u_int life)
+ssh_contrain_identity(AuthenticationConnection *auth, Key *key, u_int life)
{
Buffer msg;
int type;
@@ -562,21 +562,22 @@ ssh_lifetime_identity(AuthenticationConnection *auth, Key *key, u_int life)
buffer_init(&msg);
if (key->type == KEY_RSA1) {
- buffer_put_char(&msg, SSH_AGENTC_LIFETIME_IDENTITY1);
- buffer_put_int(&msg, life);
+ buffer_put_char(&msg, SSH_AGENTC_CONTRAIN_IDENTITY1);
buffer_put_int(&msg, BN_num_bits(key->rsa->n));
buffer_put_bignum(&msg, key->rsa->e);
buffer_put_bignum(&msg, key->rsa->n);
} else if (key->type == KEY_DSA || key->type == KEY_RSA) {
key_to_blob(key, &blob, &blen);
- buffer_put_char(&msg, SSH_AGENTC_LIFETIME_IDENTITY);
- buffer_put_int(&msg, life);
+ buffer_put_char(&msg, SSH_AGENTC_CONTRAIN_IDENTITY);
buffer_put_string(&msg, blob, blen);
xfree(blob);
} else {
buffer_free(&msg);
return 0;
}
+ buffer_put_char(&msg, SSH_AGENT_CONTRAIN_LIFETIME);
+ buffer_put_int(&msg, life);
+
if (ssh_request_reply(auth, &msg, &msg) == 0) {
buffer_free(&msg);
return 0;
diff --git a/authfd.h b/authfd.h
index 263e4b97..e3ef6ff5 100644
--- a/authfd.h
+++ b/authfd.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: authfd.h,v 1.26 2002/06/05 21:55:44 markus Exp $ */
+/* $OpenBSD: authfd.h,v 1.27 2002/06/15 00:01:36 markus Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -46,9 +46,11 @@
#define SSH_AGENTC_LOCK 22
#define SSH_AGENTC_UNLOCK 23
-/* set key lifetime */
-#define SSH_AGENTC_LIFETIME_IDENTITY1 24
-#define SSH_AGENTC_LIFETIME_IDENTITY 25
+/* constrain key usage */
+#define SSH_AGENTC_CONTRAIN_IDENTITY1 24
+#define SSH_AGENTC_CONTRAIN_IDENTITY 25
+
+#define SSH_AGENT_CONTRAIN_LIFETIME 1
/* extended failure messages */
#define SSH2_AGENT_FAILURE 30
@@ -73,7 +75,7 @@ int ssh_get_num_identities(AuthenticationConnection *, int);
Key *ssh_get_first_identity(AuthenticationConnection *, char **, int);
Key *ssh_get_next_identity(AuthenticationConnection *, char **, int);
int ssh_add_identity(AuthenticationConnection *, Key *, const char *);
-int ssh_lifetime_identity(AuthenticationConnection *, Key *, u_int);
+int ssh_contrain_identity(AuthenticationConnection *, Key *, u_int);
int ssh_remove_identity(AuthenticationConnection *, Key *);
int ssh_remove_all_identities(AuthenticationConnection *, int);
int ssh_lock_agent(AuthenticationConnection *, int, const char *);
diff --git a/ssh-add.c b/ssh-add.c
index 30d63540..cfd622d7 100644
--- a/ssh-add.c
+++ b/ssh-add.c
@@ -35,7 +35,7 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-add.c,v 1.57 2002/06/10 17:36:23 stevesk Exp $");
+RCSID("$OpenBSD: ssh-add.c,v 1.58 2002/06/15 00:01:36 markus Exp $");
#include <openssl/evp.h>
@@ -171,7 +171,7 @@ add_file(AuthenticationConnection *ac, const char *filename)
fprintf(stderr, "Could not add identity: %s\n", filename);
if (ret == 0 && lifetime != 0) {
- if (ssh_lifetime_identity(ac, private, lifetime)) {
+ if (ssh_contrain_identity(ac, private, lifetime)) {
fprintf(stderr,
"Lifetime set to %d seconds for: %s (%s)\n",
lifetime, filename, comment);
diff --git a/ssh-agent.c b/ssh-agent.c
index b89ead6e..4a288199 100644
--- a/ssh-agent.c
+++ b/ssh-agent.c
@@ -35,7 +35,7 @@
#include "includes.h"
#include "openbsd-compat/fake-queue.h"
-RCSID("$OpenBSD: ssh-agent.c,v 1.91 2002/06/11 05:46:20 mpech Exp $");
+RCSID("$OpenBSD: ssh-agent.c,v 1.92 2002/06/15 00:01:36 markus Exp $");
#include <openssl/evp.h>
#include <openssl/md5.h>
@@ -470,15 +470,13 @@ send:
}
static void
-process_lifetime_identity(SocketEntry *e, int version)
+process_contrain_identity(SocketEntry *e, int version)
{
Key *key = NULL;
u_char *blob;
- u_int blen, bits, death;
+ u_int blen, bits, death = 0;
int success = 0;
- death = time(NULL) + buffer_get_int(&e->request);
-
switch (version) {
case 1:
key = key_new(KEY_RSA1);
@@ -493,9 +491,18 @@ process_lifetime_identity(SocketEntry *e, int version)
xfree(blob);
break;
}
+ while (buffer_len(&e->request)) {
+ switch (buffer_get_char(&e->request)) {
+ case SSH_AGENT_CONTRAIN_LIFETIME:
+ death = time(NULL) + buffer_get_int(&e->request);
+ break;
+ default:
+ break;
+ }
+ }
if (key != NULL) {
Identity *id = lookup_identity(key, version);
- if (id != NULL && id->death == 0) {
+ if (id != NULL && id->death == 0 && death != 0) {
id->death = death;
success = 1;
}
@@ -707,8 +714,8 @@ process_message(SocketEntry *e)
case SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES:
process_remove_all_identities(e, 1);
break;
- case SSH_AGENTC_LIFETIME_IDENTITY1:
- process_lifetime_identity(e, 1);
+ case SSH_AGENTC_CONTRAIN_IDENTITY1:
+ process_contrain_identity(e, 1);
break;
/* ssh2 */
case SSH2_AGENTC_SIGN_REQUEST:
@@ -726,8 +733,8 @@ process_message(SocketEntry *e)
case SSH2_AGENTC_REMOVE_ALL_IDENTITIES:
process_remove_all_identities(e, 2);
break;
- case SSH_AGENTC_LIFETIME_IDENTITY:
- process_lifetime_identity(e, 2);
+ case SSH_AGENTC_CONTRAIN_IDENTITY:
+ process_contrain_identity(e, 2);
break;
#ifdef SMARTCARD
case SSH_AGENTC_ADD_SMARTCARD_KEY: