[scard.c scard.h ssh-agent.c ssh-keygen.c ssh.c]
     change sc_get_key to sc_get_keys and hide smartcard details in scard.c
This commit is contained in:
Ben Lindstrom 2002-03-26 03:17:42 +00:00
parent 5facb2bbc4
commit 0936a5bb72
6 changed files with 130 additions and 128 deletions

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@ -28,6 +28,9 @@
- markus@cvs.openbsd.org 2002/03/25 09:25:06
[auth-rh-rsa.c]
rm bogus comment
- markus@cvs.openbsd.org 2002/03/25 17:34:27
[scard.c scard.h ssh-agent.c ssh-keygen.c ssh.c]
change sc_get_key to sc_get_keys and hide smartcard details in scard.c
20020324
- (stevesk) [session.c] disable LOGIN_NEEDS_TERM until we are sure
@ -8042,4 +8045,4 @@
- Wrote replacements for strlcpy and mkdtemp
- Released 1.0pre1
$Id: ChangeLog,v 1.1986 2002/03/26 03:08:47 mouring Exp $
$Id: ChangeLog,v 1.1987 2002/03/26 03:17:42 mouring Exp $

76
scard.c
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@ -24,9 +24,8 @@
#include "includes.h"
#ifdef SMARTCARD
RCSID("$OpenBSD: scard.c,v 1.23 2002/03/24 18:05:29 markus Exp $");
RCSID("$OpenBSD: scard.c,v 1.24 2002/03/25 17:34:27 markus Exp $");
#include <openssl/engine.h>
#include <openssl/evp.h>
#include <sectok.h>
@ -36,13 +35,17 @@ RCSID("$OpenBSD: scard.c,v 1.23 2002/03/24 18:05:29 markus Exp $");
#include "readpass.h"
#include "scard.h"
#ifdef OPENSSL_VERSION_NUMBER
#if OPENSSL_VERSION_NUMBER >= 0x00907000L
#define RSA_get_default_openssl_method RSA_get_default_method
#define DSA_get_default_openssl_method DSA_get_default_method
#define DH_get_default_openssl_method DH_get_default_method
#define ENGINE_set_BN_mod_exp(x,y)
#if OPENSSL_VERSION_NUMBER < 0x00907000L
#define USE_ENGINE
#define RSA_get_default_method RSA_get_default_openssl_method
#else
#endif
#ifdef USE_ENGINE
#include <openssl/engine.h>
#define sc_get_rsa sc_get_engine
#else
#define sc_get_rsa sc_get_rsa_method
#endif
#define CLA_SSH 0x05
@ -143,8 +146,7 @@ sc_read_pubkey(Key * k)
n = NULL;
if (sc_fd < 0) {
status = sc_init();
if (status < 0 )
if (sc_init() < 0)
goto err;
}
@ -317,18 +319,13 @@ sc_finish(RSA *rsa)
return 1;
}
/* engine for overloading private key operations */
static ENGINE *smart_engine = NULL;
static RSA_METHOD smart_rsa;
ENGINE *
sc_get_engine(void)
static RSA_METHOD *
sc_get_rsa_method(void)
{
const RSA_METHOD *def;
def = RSA_get_default_openssl_method();
static RSA_METHOD smart_rsa;
const RSA_METHOD *def = RSA_get_default_method();
/* use the OpenSSL version */
memcpy(&smart_rsa, def, sizeof(smart_rsa));
@ -343,13 +340,22 @@ sc_get_engine(void)
orig_finish = def->finish;
smart_rsa.finish = sc_finish;
return &smart_rsa;
}
#ifdef USE_ENGINE
static ENGINE *
sc_get_engine(void)
{
static ENGINE *smart_engine = NULL;
if ((smart_engine = ENGINE_new()) == NULL)
fatal("ENGINE_new failed");
ENGINE_set_id(smart_engine, "sectok");
ENGINE_set_name(smart_engine, "libsectok");
ENGINE_set_RSA(smart_engine, &smart_rsa);
ENGINE_set_RSA(smart_engine, sc_get_rsa_method());
ENGINE_set_DSA(smart_engine, DSA_get_default_openssl_method());
ENGINE_set_DH(smart_engine, DH_get_default_openssl_method());
ENGINE_set_RAND(smart_engine, RAND_SSLeay());
@ -357,6 +363,7 @@ sc_get_engine(void)
return smart_engine;
}
#endif
void
sc_close(void)
@ -367,11 +374,11 @@ sc_close(void)
}
}
Key *
sc_get_key(const char *id, const char *pin)
Key **
sc_get_keys(const char *id, const char *pin)
{
Key *k;
int status;
Key *k, *n, **keys;
int status, nkeys = 2;
if (sc_reader_id != NULL)
xfree(sc_reader_id);
@ -395,7 +402,26 @@ sc_get_key(const char *id, const char *pin)
key_free(k);
return NULL;
}
return k;
keys = xmalloc((nkeys+1) * sizeof(Key *));
n = key_new(KEY_RSA1);
BN_copy(n->rsa->n, k->rsa->n);
BN_copy(n->rsa->e, k->rsa->e);
RSA_set_method(n->rsa, sc_get_rsa());
n->flags |= KEY_FLAG_EXT;
keys[0] = n;
n = key_new(KEY_RSA);
BN_copy(n->rsa->n, k->rsa->n);
BN_copy(n->rsa->e, k->rsa->e);
RSA_set_method(n->rsa, sc_get_rsa());
n->flags |= KEY_FLAG_EXT;
keys[1] = n;
keys[2] = NULL;
key_free(k);
return keys;
}
#define NUM_RSA_KEY_ELEMENTS 5+1

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@ -1,4 +1,4 @@
/* $OpenBSD: scard.h,v 1.9 2002/03/21 21:54:34 rees Exp $ */
/* $OpenBSD: scard.h,v 1.10 2002/03/25 17:34:27 markus Exp $ */
/*
* Copyright (c) 2001 Markus Friedl. All rights reserved.
@ -24,8 +24,6 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <openssl/engine.h>
#ifndef SCARD_H
#define SCARD_H
@ -35,8 +33,7 @@
#define SCARD_ERROR_NOCARD -2
#define SCARD_ERROR_APPLET -3
Key *sc_get_key(const char*, const char*);
ENGINE *sc_get_engine(void);
Key **sc_get_keys(const char*, const char*);
void sc_close(void);
int sc_put_key(Key *, const char*);

View File

@ -34,7 +34,7 @@
*/
#include "includes.h"
RCSID("$OpenBSD: ssh-agent.c,v 1.83 2002/03/21 22:44:05 rees Exp $");
RCSID("$OpenBSD: ssh-agent.c,v 1.84 2002/03/25 17:34:27 markus Exp $");
#if defined(HAVE_SYS_QUEUE_H) && !defined(HAVE_BOGUS_SYS_QUEUE_H)
#include <sys/queue.h>
@ -57,7 +57,6 @@ RCSID("$OpenBSD: ssh-agent.c,v 1.83 2002/03/21 22:44:05 rees Exp $");
#include "log.h"
#ifdef SMARTCARD
#include <openssl/engine.h>
#include "scard.h"
#endif
@ -452,50 +451,39 @@ send:
static void
process_add_smartcard_key (SocketEntry *e)
{
Identity *id;
Idtab *tab;
Key *n = NULL, *k = NULL;
Key **keys, *k;
char *sc_reader_id = NULL, *pin;
int success = 0;
int i, version, success = 0;
sc_reader_id = buffer_get_string(&e->input, NULL);
pin = buffer_get_string(&e->input, NULL);
k = sc_get_key(sc_reader_id, pin);
keys = sc_get_keys(sc_reader_id, pin);
xfree(sc_reader_id);
xfree(pin);
if (k == NULL) {
error("sc_get_pubkey failed");
if (keys == NULL || keys[0] == NULL) {
error("sc_get_keys failed");
goto send;
}
success = 1;
tab = idtab_lookup(1);
k->type = KEY_RSA1;
if (lookup_identity(k, 1) == NULL) {
Identity *id = xmalloc(sizeof(Identity));
n = key_new(KEY_RSA1);
BN_copy(n->rsa->n, k->rsa->n);
BN_copy(n->rsa->e, k->rsa->e);
RSA_set_method(n->rsa, sc_get_engine());
id->key = n;
id->comment = xstrdup("rsa1 smartcard");
TAILQ_INSERT_TAIL(&tab->idlist, id, next);
tab->nentries++;
for (i = 0; keys[i] != NULL; i++) {
k = keys[i];
version = k->type == KEY_RSA1 ? 1 : 2;
tab = idtab_lookup(version);
if (lookup_identity(k, version) == NULL) {
id = xmalloc(sizeof(Identity));
id->key = k;
id->comment = xstrdup("smartcard key");
TAILQ_INSERT_TAIL(&tab->idlist, id, next);
tab->nentries++;
success = 1;
} else {
key_free(k);
}
keys[i] = NULL;
}
k->type = KEY_RSA;
tab = idtab_lookup(2);
if (lookup_identity(k, 2) == NULL) {
Identity *id = xmalloc(sizeof(Identity));
n = key_new(KEY_RSA);
BN_copy(n->rsa->n, k->rsa->n);
BN_copy(n->rsa->e, k->rsa->e);
RSA_set_method(n->rsa, sc_get_engine());
id->key = n;
id->comment = xstrdup("rsa smartcard");
TAILQ_INSERT_TAIL(&tab->idlist, id, next);
tab->nentries++;
}
key_free(k);
xfree(keys);
send:
buffer_put_int(&e->output, 1);
buffer_put_char(&e->output,
@ -505,41 +493,37 @@ send:
static void
process_remove_smartcard_key(SocketEntry *e)
{
Key *k = NULL;
int success = 0;
Identity *id;
Idtab *tab;
Key **keys, *k = NULL;
char *sc_reader_id = NULL, *pin;
int i, version, success = 0;
sc_reader_id = buffer_get_string(&e->input, NULL);
pin = buffer_get_string(&e->input, NULL);
k = sc_get_key(sc_reader_id, pin);
keys = sc_get_keys(sc_reader_id, pin);
xfree(sc_reader_id);
xfree(pin);
if (k == NULL) {
error("sc_get_pubkey failed");
} else {
Identity *id;
k->type = KEY_RSA1;
id = lookup_identity(k, 1);
if (id != NULL) {
Idtab *tab = idtab_lookup(1);
TAILQ_REMOVE(&tab->idlist, id, next);
free_identity(id);
if (keys == NULL || keys[0] == NULL) {
error("sc_get_keys failed");
goto send;
}
for (i = 0; keys[i] != NULL; i++) {
k = keys[i];
version = k->type == KEY_RSA1 ? 1 : 2;
if ((id = lookup_identity(k, version)) != NULL) {
tab = idtab_lookup(version);
TAILQ_REMOVE(&tab->idlist, id, next);
tab->nentries--;
success = 1;
}
k->type = KEY_RSA;
id = lookup_identity(k, 2);
if (id != NULL) {
Idtab *tab = idtab_lookup(2);
TAILQ_REMOVE(&tab->idlist, id, next);
free_identity(id);
tab->nentries--;
success = 1;
}
key_free(k);
keys[i] = NULL;
}
xfree(keys);
send:
buffer_put_int(&e->output, 1);
buffer_put_char(&e->output,
success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE);

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@ -12,7 +12,7 @@
*/
#include "includes.h"
RCSID("$OpenBSD: ssh-keygen.c,v 1.96 2002/03/21 21:54:34 rees Exp $");
RCSID("$OpenBSD: ssh-keygen.c,v 1.97 2002/03/25 17:34:27 markus Exp $");
#include <openssl/evp.h>
#include <openssl/pem.h>
@ -416,14 +416,18 @@ do_upload(struct passwd *pw, const char *sc_reader_id)
static void
do_download(struct passwd *pw, const char *sc_reader_id)
{
Key *pub = NULL;
Key **keys = NULL;
int i;
pub = sc_get_key(sc_reader_id, NULL);
if (pub == NULL)
keys = sc_get_keys(sc_reader_id, NULL);
if (keys == NULL)
fatal("cannot read public key from smartcard");
key_write(pub, stdout);
key_free(pub);
fprintf(stdout, "\n");
for (i = 0; keys[i]; i++) {
key_write(keys[i], stdout);
key_free(keys[i]);
fprintf(stdout, "\n");
}
xfree(keys);
exit(0);
}
#endif /* SMARTCARD */

54
ssh.c
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@ -39,7 +39,7 @@
*/
#include "includes.h"
RCSID("$OpenBSD: ssh.c,v 1.166 2002/03/21 22:44:05 rees Exp $");
RCSID("$OpenBSD: ssh.c,v 1.167 2002/03/25 17:34:27 markus Exp $");
#include <openssl/evp.h>
#include <openssl/err.h>
@ -70,7 +70,6 @@ RCSID("$OpenBSD: ssh.c,v 1.166 2002/03/21 22:44:05 rees Exp $");
#include "sshtty.h"
#ifdef SMARTCARD
#include <openssl/engine.h>
#include "scard.h"
#endif
@ -1187,40 +1186,29 @@ static void
load_public_identity_files(void)
{
char *filename;
Key *public;
int i = 0;
Key *public;
#ifdef SMARTCARD
Key **keys;
if (options.smartcard_device != NULL &&
options.num_identity_files + 1 < SSH_MAX_IDENTITY_FILES &&
(public = sc_get_key(options.smartcard_device, NULL)) != NULL ) {
Key *new;
if (options.num_identity_files + 2 > SSH_MAX_IDENTITY_FILES)
options.num_identity_files = SSH_MAX_IDENTITY_FILES - 2;
memmove(&options.identity_files[2], &options.identity_files[0],
sizeof(char *) * options.num_identity_files);
options.num_identity_files += 2;
i = 2;
/* XXX ssh1 vs ssh2 */
new = key_new(KEY_RSA);
new->flags = KEY_FLAG_EXT;
BN_copy(new->rsa->n, public->rsa->n);
BN_copy(new->rsa->e, public->rsa->e);
RSA_set_method(new->rsa, sc_get_engine());
options.identity_keys[0] = new;
options.identity_files[0] = xstrdup("smartcard rsa key");;
new = key_new(KEY_RSA1);
new->flags = KEY_FLAG_EXT;
BN_copy(new->rsa->n, public->rsa->n);
BN_copy(new->rsa->e, public->rsa->e);
RSA_set_method(new->rsa, sc_get_engine());
options.identity_keys[1] = new;
options.identity_files[1] = xstrdup("smartcard rsa1 key");
key_free(public);
options.num_identity_files < SSH_MAX_IDENTITY_FILES &&
(keys = sc_get_keys(options.smartcard_device, NULL)) != NULL ) {
int count = 0;
for (i = 0; keys[i] != NULL; i++) {
count++;
if (options.num_identity_files + 1 > SSH_MAX_IDENTITY_FILES)
options.num_identity_files = SSH_MAX_IDENTITY_FILES - 1;
memmove(&options.identity_files[1], &options.identity_files[0],
sizeof(char *) * (SSH_MAX_IDENTITY_FILES - 1));
memmove(&options.identity_keys[1], &options.identity_keys[0],
sizeof(Key *) * (SSH_MAX_IDENTITY_FILES - 1));
options.num_identity_files++;
options.identity_keys[0] = keys[i];
options.identity_files[0] = xstrdup("smartcard key");;
}
i = count;
xfree(keys);
}
#endif /* SMARTCARD */
for (; i < options.num_identity_files; i++) {